JP2024061814A - Endoscope protection tool and cap for endoscope protection tool - Google Patents

Abstract

To solve a problem in which, when performing endoscopic inspection on a subject with an infection disease, there is a risk that a medical care worker may be infected with a disease through splash from the subject and aerosol or the like.SOLUTION: An endoscope protection tool 1DA comprises: a belt 19A being a fixing member; and a pad 50A. The belt 19A is attached to the hip of a subject 100, and the pad 50A is held so as to face the anal of the subject 100. The pad 50A forms a substantially closed space between itself and the hip. The pad comprises: a first port 20A which is provided on the pad 50A and into which an insertion part 91 of an endoscope 90 is inserted; and a second port 30 which is provided on the pad 50A and through which ambient air flows into the space.SELECTED DRAWING: Figure 41

Description

Application for application of Article 30, Paragraph 2 of the Patent Act has been filed. 1. November 5, 2020, posted on the website https://www. olympus. co. jp/news/2020/nr01930. html 2. November 5, 2020, posted on the website https://www. nikkei. com/article/DGXMZO65888330V01C20A1XB0000/ 3. November 5, 2020, posted on the website https://www. jiji. com/jc/article? k=000000070.000049310&g=prt 4. November 5, 2020 Website posted https://www. excite. co. jp/news/article/Purtimes_2020-11-05-49310-70/? p=2 5. November 5, 2020 Website posted https://www. oricon. co. jp/pressrelease/753101/ 6. November 5, 2020 Website posted https://www. innervision. co. jp/products/release/20201221 7. Published on the website on November 5, 2020 https://medical.jiji.com/prtimes/21814 8. Published on the website on November 5, 2020 http://news1st.jp/archives/6392 9. Published on the website on November 5, 2020 https://www.nikkei.com/article/DGXLRSP542794_V01C20A1000000/ 10. Published on the website on November 5, 2020 https://news.biglobe.ne. jp/economy/1105/prt_201105_4522290625.html 11. November 6, 2020 Website https://cksk.org/article/trend/6111.html 12. November 6, 2020 Website https://medical-tribune.co.jp/news/2020/1106533343/ 13. November 5, 2020 Website http://www.byoinshinbun.com/news_news.php?cs=14&id=763

Application for application of Article 30, Paragraph 2 of the Patent Act filed. 14. November 5, 2020, posted on the website https://www.eizojoho.co.jp/newspr/5519 15. November 12, 2020, Nikkan Kogyo Shimbun 16. November 12, 2020, Chemical Daily 17. November 12, 2020, posted on the website https://www.nikkan.co.jp/articles/view/00578053 18. June 11, 2021, posted on the website https://www.olimpus.co.jp/news/2021/nr02155. html 19. Distributed on June 11, 2021 by the Japan Society of Oto-Rhino-Laryngology-Head and Neck Surgery (General Incorporated Association) 20. Distributed on June 12, 2021 by the Japan Society for Respiratory Endoscopy (Specified Non-Profit Organization) 21. Posted on the website on November 1, 2021 https://www.olympus.co.jp/news/2021/nr02226.html 22. Distributed on November 1, 2021 by the Tokyo Medical Association (Public Interest Incorporated Association)

The present invention relates to an endoscope protective device having a first port into which the insertion portion of an endoscope is inserted, and a cap for the endoscope protective device.

When performing endoscopic examinations on subjects with infectious diseases, there is a risk that medical staff will become infected by droplets and aerosols generated by the subjects. For this reason, medical staff prevent infection by using high-performance masks, face guards, medical gowns, gloves, etc.

There was a need for protective equipment for endoscopes that would further reduce the risk of infection for medical workers.

International Publication No. 2011/127660 discloses an endoscope mask that has an insertion port into which the insertion portion of an endoscope is inserted and delivers oxygen or anesthetic gas to the subject.

International Publication No. 2011/127660

Embodiments of the present invention relate to an endoscope protective device that reduces the risk of infection for medical personnel, and a cap for the endoscope protective device.

An embodiment of the endoscope protective device includes a fixing member and a pad, the fixing member being attached to the buttocks of a subject and holding the pad facing the anus of the subject, the pad forming a substantially sealed space between the buttocks and the pad, and the pad having a first port provided on the pad through which an insertion portion of an endoscope is inserted, and a second port provided on the pad through which outside air flows into the space.
An endoscope protective device in one embodiment comprises a main body that is worn on a subject and forms a substantially sealed space between the main body and the subject, a first port arranged on the main body into which an insertion portion of an endoscope is inserted, a second port arranged on the main body that penetrates from the space to the outside, and a third port arranged on the main body that penetrates from the space to the outside, the second port and the third port being the same size and shape.
An endoscope protective device in one embodiment includes a main body that is worn on a subject and forms a substantially sealed space between the main body and the subject, a first port provided on the main body into which an insertion portion of an endoscope is inserted, a second port provided on the main body through which outside air flows into the space, and a cross-sectional area of the joint between the second port and the main body that is larger than the cross-sectional area of the second port.

The cap of the endoscope protective equipment of the embodiment is configured to be attached to a port of the endoscope protective equipment that is worn on a subject to form a substantially sealed space, includes an abutment part with a slit that abuts against the inner peripheral surface of the port, and the area of the ventilation hole formed by the slit can be adjusted by adjusting the depth to which it is pressed into the port.

Embodiments of the present invention provide an endoscope protective device and a cap for the endoscope protective device that reduce the risk of infection for medical personnel.

1 is a side view of an endoscope protective tool according to a first embodiment. FIG. 1 is a front view of an endoscope protective tool according to a first embodiment. FIG. 4 is a flowchart of an operation method of the endoscope protective equipment according to the first embodiment. FIG. 2 is a front view of a first port of the endoscope protective equipment of the first embodiment. FIG. 2 is a front view of a first port of the endoscope protective equipment of the first embodiment. FIG. 2 is a front view of a first port of the endoscope protective equipment of the first embodiment. FIG. 2 is a front view of a first port of the endoscope protective equipment of the first embodiment. FIG. 2 is a front view of a first port of the endoscope protective equipment of the first embodiment. FIG. 2 is a front view of a first port of the endoscope protective equipment of the first embodiment. FIG. 2 is a perspective exploded view of a port of the endoscope protective equipment of the first embodiment. FIG. 2 is a perspective exploded view of a port of the endoscope protective equipment of the first embodiment. FIG. 2 is a perspective exploded view of a port of the endoscope protective equipment of the first embodiment. FIG. 2 is a front view of a port of the endoscope protective equipment of the first embodiment. FIG. 2 is a front view of a port of the endoscope protective equipment of the first embodiment. FIG. 2 is a front view of a port arrangement of the endoscope protective equipment of the first embodiment. 13 is a front view of a fourth port of the endoscope protective equipment of the first embodiment. FIG. FIG. 13 is a front view of a modified example of the endoscope protective equipment of the first embodiment. FIG. 11 is a front view of an endoscope protective tool according to a second embodiment. FIG. 11 is a side view of an endoscope protective tool according to a second embodiment. FIG. 11 is a side view of an endoscope protective tool according to a third embodiment. FIG. 11 is an exploded perspective view of an endoscope protective equipment according to a third embodiment. FIG. 11 is a side view of an endoscope protective tool according to a third embodiment. FIG. 11 is a side view of an endoscope protective tool according to a third embodiment. FIG. 13 is a perspective view of an endoscope protective equipment according to a fourth embodiment. FIG. 13 is a perspective view of an endoscope protective equipment according to a fourth embodiment. FIG. 13 is a perspective view of an endoscope protective tool according to a fifth embodiment. FIG. 13 is a perspective view of an endoscope protective tool according to a fifth embodiment. FIG. 13 is a perspective view of an endoscope protective tool according to a fifth embodiment. FIG. 13 is a cross-sectional view of an endoscope protective equipment according to a sixth embodiment. FIG. 13 is an exploded perspective view of an endoscope protective equipment according to a sixth embodiment. FIG. 13 is a side view of an endoscope protective equipment according to a sixth embodiment. FIG. 13 is a perspective view of an endoscope protective equipment according to a seventh embodiment. FIG. 23 is a perspective view of an endoscope protection system according to an eighth embodiment. FIG. 23 is a perspective view of an endoscope protective equipment according to an eighth embodiment. 13 is a perspective view of a connector of an endoscope protective tool according to an eighth embodiment. FIG. This is a cross-sectional view taken along line XXVIB-XXVIB in Figure 26A. 13 is a cross-sectional view of a cap of an endoscope protective equipment according to an eighth embodiment. FIG. 13 is a cross-sectional view of a cap of an endoscope protective equipment according to an eighth embodiment. FIG. 13 is a cross-sectional view of a cap of an endoscope protective equipment according to an eighth embodiment. FIG. 13 is a cross-sectional view of a cap of an endoscope protective equipment according to an eighth embodiment. FIG. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the eighth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the eighth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the eighth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the eighth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the eighth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the eighth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the eighth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the ninth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the ninth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the tenth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the tenth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the tenth embodiment. 13A to 13C are diagrams illustrating a method of using the endoscope protective equipment of the tenth embodiment. FIG. 23 is a perspective view of an endoscope protective equipment according to an eleventh embodiment. 13A to 13C are diagrams illustrating an endoscope protection system according to an eleventh embodiment.

First Embodiment
A protective device for endoscopes (hereinafter, sometimes referred to as a "protective device" or an "endoscope protective mask") 1 according to a first embodiment will be described with reference to Figures 1 and 2. In the following description, the drawings based on each embodiment are schematic diagrams. It should be noted that the relationship between the thickness and width of each part, and the thickness ratio of each part, are different from the actual ones. The drawings may also include parts with different dimensional relationships and ratios. Illustration of some components and assignment of symbols may be omitted.

<Configuration of endoscope protective equipment>
The endoscope 90 has an insertion section 91, an operation section 92, and a universal cord 93. An imaging device (not shown) is disposed at a tip 91A of the insertion section 91 that is inserted into the body of the subject 100.

The protective equipment 1 is fitted to the subject 100 and includes a mask body 5 that forms a substantially sealed space between the subject and the body. The mask body 5 fits closely to the face, covering the nose and mouth. The mask body 5 is fixed to the head using strings 19. The strings 19 may be hung around the ears, or may be hung not only around the back of the head but also around the top of the head, and may be made of an elastic material. The mask body 5 may be fixed to the face by the elasticity or structure of the mask body 5, or by an adhesive material (such as tape).

The shape of the mask body 5 is set so that the volume of the internal space formed is small to improve air circulation, and so that the mouth and nose do not come into contact with the mask body 5. When the endoscope 90 is inserted orally, the shape of the mask body 5 is designed assuming that the subject 100 will be wearing a mouthpiece.

The protective device 1 has at least a first port 10 and a second port 20.

The first port 10, into which the insertion section 91 of the endoscope 90 is inserted, is provided at a position facing the mouth and nose of the subject 100. The first port 10 is sized and positioned to accommodate nasal and oral insertion of the endoscope. The first port 10 has a shutter 6 disposed on a ring 10A to prevent the escape of droplets and aerosols during endoscope insertion.

The shutter 6 of the first port 10 is made of multiple tongue pieces divided by radial slits SL so as not to impair the airtightness inside the mask body 5. The material of the shutter 6 is preferably softer and more elastic than the outer skin that constitutes the outer peripheral surface of the insertion part 91 so as not to damage the outer peripheral surface of the insertion part 91, for example, resin or rubber.

When the insertion portion 91 is inserted into the first port 10, the multiple tongues of the shutter 6 come into contact with the outer peripheral surface of the insertion portion 91 and elastically deform. No large openings are created around the insertion portion 91.

In the protective equipment 1, outside air flows into the substantially sealed space inside the mask body 5 via the cylindrical second port 20.

The protective equipment 1 uses a mask body 5 that does not prevent the subject 100 from spontaneously inhaling outside air, so droplets, aerosols, etc. generated by the subject remain in the approximately sealed space inside the mask body 5 and are unlikely to be released into the surroundings. Therefore, the protective equipment 1 can reduce the risk of infection for medical personnel. The outside air is the air in the examination room/treatment room, but it can also be oxygen shared from a gas cylinder, etc.

The protective equipment 1 further includes a cylindrical third port 30. Air in the internal space of the mask body 5 is sucked in via the third port 30. For example, the third port 30 is connected to a suction device 200 by a suction tube 210. It goes without saying that a decompression tube placed on the wall of the room can be connected instead of the suction device 200. It goes without saying that not only air but also droplets, aerosols, etc. dispersed in the air are sucked in. In other words, substances in the internal space of the mask body 5 are sucked in.

The protective equipment 1 can reduce the risk of infection for medical workers by sucking in the air inside the mask body 5.

The protective equipment 1 further includes a fourth port 40 through which a tube is inserted. The fourth port 40 of the protective equipment 1 is a cutout on the outer periphery of the mask body 5 through which a cannula or an intubation tube is inserted. The cannula may be inserted through the second port 20. In that case, the hole of the second port 20 is made large enough to allow the cannula to be inserted. In addition, the opening of the second port 20 and the cutout of the cap, which will be described later, are also made large enough to allow the cannula to be inserted.

Note that the third port 30 and the fourth port 40 are not required elements of the protective equipment of the present invention.

The protective device 1 further includes ports 61 and 62. In the protective device 1 shown in FIG. 2, the port 61 is not used and is therefore blocked by a cap 71. The port 62, through which outside air flows in like the second port 20, is provided with a cap 72, which is a flow rate adjusting member having a through hole that limits the size of the opening of the port 62, as described below.

The endoscope 90 includes a channel tube 95 that has an opening at the tip 91A and through which the insertion section 91 is inserted. A plug 96 is provided at the treatment tool insertion port H95, which is the opening at the base end of the channel tube 95, to close the opening.

<Method of operating the endoscope protective device>
The operation of the protective equipment 1 will now be briefly described with reference to the flow chart of FIG.

<Step S10> Wearing Process The mask body 5 of the protective equipment 1 is worn by the subject 100 in a state in which a substantially sealed space is formed between the mask body 5 and the face.

The mask body 5 is made of a flexible material such as polyvinyl chloride or silicone rubber that can be securely attached to the face and ensure a tight seal.

In order to secure the mask body 5 to the nose, it is preferable that the area facing the nose is pre-bent to the shape of the nose. The area facing the nose may also be made of malleable material, which is a freely bendable material that can be bent to fit the shape of the subject's nose.

Mask bodies 5 are available in sizes that suit individual differences. The outer periphery of the mask body 5 may be made of malleable material that can be freely folded so that the overall shape can be adjusted.

The first port 10 includes a circular ring (cylinder) 10A disposed in the central opening of the mask body 5, and a shutter 6 attached to the ring 10A. The ring 10A is made of a rigid resin such as nylon, polyacetal, or polypropylene. The shutter 6 is made of so-called chrysanthemum-shaped rubber with radial slits SL. The mask body 5 has an opening for the first port 10, but the mechanical strength is guaranteed by the ring 10A and the shape is maintained. The shutter 6 of the first port 10 is replaceable depending on the application.

In addition, since it is expected that the protective equipment 1 will be used in operating rooms, etc., it is preferable that the protective equipment 1 is sterilized and packed in a bag.

<Step S20> Insertion Process The insertion portion 91 is inserted into the body of the subject 100 via the first port 10.

<Step S30> Removal Step When the examination or processing is completed, the insertion portion 91 is removed from the body of the subject 100.

In the operation method of the protective device 1, during the period from insertion to removal, air in the space is sucked in through the third port 30, and outside air flows into the space through the second port 20.

The above-mentioned method of operating the endoscope protective equipment 1 can reduce the risk of infection for medical personnel.

The examination/treatment using the above-mentioned endoscope protective equipment 1 will be described from the standpoint of the subject 100.
(A) the subject 100 puts on the mask body 5 in a waiting room. (B) the subject receives preliminary treatment such as anesthesia. (C) the subject 100 moves to an examination room/treatment room. The third port 30 is connected to the suction device 200 by the suction tube 210. (D) while the examination/treatment using the endoscope is being performed, the space inside the mask body 5 is sufficiently ventilated. (E) When the examination/treatment is completed, the suction tube 210 is removed, and (F) the subject 100 moves to a recovery room while still wearing the mask body 5. Even during the move, ventilation of the mask body 5 is ensured by spontaneous breathing.

Alternatively, the subject 100 may wear the mask body 5 in an examination room/treatment room, and remove the mask body 5 in the examination room/treatment room when the examination/treatment is completed.

<Modification of the first port>
The shutter 6 of the first port 10 for preventing deterioration of the sealing degree of the approximately sealed space of the protective equipment 1 is not limited to the so-called chrysanthemum-shaped rubber having radial slits SL. The shutter 6 shown in Fig. 4A and Fig. 4B has a straight slit SL. The shutter 6 shown in Fig. 4C has an opening H11 for an oral endoscope, a cover 11A closing the opening H11, an opening H12 for a nasal endoscope, and a cover 12A closing the opening H12. The shutter 6 shown in Fig. 4D and Fig. 4E has a slit SL11 for an oral endoscope and a slit SL12 for a nasal endoscope. The shutter 6 shown in Fig. 4F has only the opening H11 for an oral endoscope.

That is, it is sufficient that the first port 10 has at least one opening at a position facing at least one of the subject's mouth or nose. Since the first port 10 can accommodate both oral and nasal ingestion, it is preferable that the first port 10 has one opening at a position facing both the mouth and nose.

The shutter 6 is preferably removable from the first port 10. Also, multiple shutters 6 may be attached to the first port 10 in a stacked manner.

In order to prevent droplets from leaking before and after the test, i.e., while the subject 100 is wearing the protective equipment 1 and waiting, it is preferable for the protective equipment to have a configuration that can completely close the opening, such as a shutter with a cover 11A shown in Figure 4C.

For example, the aperture size can be adjusted by configuring the shutter 6 with multiple aperture blades, similar to the iris diaphragm of a photographic lens. A shutter 6 with seven blades forms a heptagonal aperture, but the aperture can also be completely closed.

In addition, a cover made of a soft, non-breathable material such as highly ductile vinyl resin or cloth may be placed over the shutter 6 with an opening as a second shutter.

For example, before and after the test, a cover is placed on the mask body 5 so as to cover the entire surface of the shutter 6, which has holes in positions facing the mouth and nose of the subject 100. During the test, the cover is shifted or folded back to expose the upper or lower half of the holes.

<Modifications of the second port and the third port>
It is preferable that the flow rate of at least one of the ports through which the air passes, for example the second port 20 or the third port 30, is adjustable.

The second port 20 shown in FIG. 5A has a cross-sectional area at the joint with the mask body 5 that is larger than the cross-sectional area at the tip. If the mask body 5 is in close contact with the subject's cheek, the second port 20 may be blocked, preventing sufficient ventilation. A port with a wider base is less likely to block the second port 20 with the subject's facial surface.

The second port 20 also has a connector 72A that can be detached from the port and to which a suction tube or various luer connectors can be attached.

The second port 20 shown in FIG. 5B has an opening W20 on the side and a cylindrical cap 71A that is a plug with a brim (umbrella). The size of the opening W20, i.e., the flow rate, can be adjusted by adjusting the depth to which the cap 71A is pushed into the hole H20. The brim cap 71A is not pushed deep into the hole H20, so it does not protrude from the inner surface of the mask body 5. In addition, since the cap 71A does not hit the orifice plate described below, the holes in the orifice plate are not blocked by the cap 71A. Furthermore, since the second port 20 has an opening on the side, direct droplet diffusion can be prevented. Note that the caps 71 and 72 shown in FIG. 2 or the connector 72A shown in FIG. 5A may also have a brim.

The cap 73 of the second port 20 shown in FIG. 5C has a notched abutment portion 73A and a cylindrical abutment portion 73B. The flow rate can be adjusted by adjusting the depth to which the abutment portion 73A is pressed into the hole H20. By rotating the abutment portion 73A, the cap 73 can face the slit, which serves as a ventilation hole, in a direction away from the medical worker 120, allowing ventilation in the direction away from the medical worker 120. It is preferable that the brim has a mark (such as an arrow) indicating the direction of the slit. Furthermore, the flow path can be blocked by pressing the abutment portion 73B into the hole H20.

The second port 20 having an opening W20 on the side shown in FIG. 5B may be combined with a cap 73 having a notch shown in FIG. 5C. By changing the overlap state between the opening W20 of the second port 20 and the notch of the cap 73, the ventilation direction and flow rate can be adjusted.

The second port 20 shown in FIG. 6A has an orifice plate with multiple circular holes H20A in the hole H20. The second port 20 shown in FIG. 6B has an orifice plate with multiple elliptical holes H20A in the hole H20. The orifice plate may have only one hole large enough to allow the cannula to pass through.

The third port 30 may have the same configuration as the second port 20. The port may also have a check valve. The port may also have a filter with high filtration efficiency (such as N95).

<Modifications of the number and arrangement of ports>
In the protective equipment 1, the space formed by the mask body 5 is a substantially sealed space that is connected to the outside only by a port.

If the protective equipment 1 has at least one first port 10 and one second port 20, it can reduce the risk of infection for medical personnel without interfering with the subject 100's spontaneous inhalation of outside air.

In addition, when the third port 30 is provided, the most effective port arrangement can be obtained by considering the air flow in the internal space of the mask body 5. For example, as shown in FIG. 2, when the second port 20 is provided on the left side of the mask body 5 and the third port 30 is provided on the right side of the mask body 5 in the drawing, air flows from left to right in the internal space of the mask body 5.

The protective equipment 1 shown in FIG. 7 has four second ports 20 at the top of the mask body 5 and two third ports 30 at the bottom of the mask body 5. Air flows from the top to the bottom of the mask body 5 in the internal space. As shown in FIG. 8, when the mask body 5 has the second ports 20 at the top right and the mask body 5 has the third port 30 at the bottom left, air flows from the top right to the bottom left in the internal space of the mask body 5.

In addition, in the protective device 1 shown in Figure 8, the fourth port is a tube 40 through which an intubation tube is inserted.

The number, arrangement, and shape of the ports of the protective device 1 are set appropriately depending on the application. For example, assuming use in the otolaryngology field or the gastroenterology field, the third port 30 may be provided on only one side (e.g., the right side) of the mask body 5, or the third port 30 may be provided on both sides.

In a protective device 1 for a bronchoscope with a small-diameter insertion section 91, the first port 10 may have a smaller opening than the second port. The protective device 1 may have two first ports 10: a port for a digestive endoscope and a port for a bronchoscope.

<Modifications of the Outer Shape of the Mask Body>
The mask body 5 may cover the subject's eyes or the entire face. Conversely, the mask may cover only the upper half of the face in order to secure a surgical space. That is, as shown in Fig. 9, the mask body 5 is shaped by cutting the lower part of the mask body 5 in Fig. 2, and a gap is formed between the mask body 5 and the face only near the nose. Areas other than the nose may be sealed with tape to prevent any gaps.

The third port 30 is connected to the suction device 200 via a suction tube 210. Aerosols generated by the subject 100 are sucked in through the gap between the mask body 5 and the face, reducing the risk of infection for medical personnel. As shown in FIG. 9, the suction tube 210 may be passed through the mask body 5 so that its tip is positioned near the nose of the subject 100.

Furthermore, the size of the mask body of the present invention may be reduced by cutting off the upper portion of the mask body 5 shown in FIG. 2, or by cutting off both the upper portion and the lower portion.

Second Embodiment
The protective equipment for endoscopes in each embodiment described below is a protective mask for endoscopes similar to protective equipment 1 and has the same effect, so components with the same functions are given the same symbols and descriptions thereof are omitted.

The endoscope protective equipment 1A of this embodiment shown in FIG. 10 further includes an overmask (full-face mask) 15 that covers the subject 100 from the head to the chin but does not cover the first port 10 of the main body 5.

The overmask 15 is a transparent bag with an opening through which the neck is inserted. The overmask 15, which is made of, for example, polyethylene film, is fixed to the outer periphery of the mask body 5, for example by welding, and is integrated with the mask body 5. After putting on the mask body 5, the subject 100 puts the overmask 15 on his/her head and fixes the opening of the overmask 15 around the neck by tying it with a string or the like.

The overmask 15A shown in FIG. 11 also has an opening at a position corresponding to the mask body 5, for example, with rubber arranged on the outer edge. Therefore, the outer periphery of the mask body 5 is covered by the overmask 15A.

The overmask 15, 15A may cover the upper body of the subject 100. The overmask 15, 15A may also have a port for ventilation. If the subject 100 is wearing a tube such as a nasal cannula, the overmask 15, 15A is used with a fixing part for fixing the tube and an opening for inserting the tube.

Some subjects 100 may feel scared when wearing the overmask. For this reason, the overmask may also have an opening at the top of the head. With such an overmask, the overmask is left open so that it does not cover the eyes until the start of the test, and then just before the test begins, the overmask can be extended to the top of the head and the opening tied off at the top of the head.

Third Embodiment
The endoscope protective equipment 1B of this embodiment shown in FIG. 12 further includes an insertion portion sleeve 16 that is disposed in the first port 10 and receives the insertion portion 91 of the endoscope 90 in a substantially sealed state.

The sleeve 16 comprises a ring 16A disposed on the first port 10 and a sleeve 16B which is a sterilized cylindrical bag with openings on both ends. The length of the sleeve 16 is slightly longer than the length of the insertion part 91. As shown in FIG. 13, the ring 16A at the opening of the sleeve 16 fits into the ring 10A of the first port 10, and is fixed to the mask body 5 without any gaps.

The opening of the sleeve 16 on the operating section 92 side is fixed to the rear end of the insertion section 91 or the lower part of the operating section 92 without any gaps, for example, using tape 16C. If the endoscope 90 has a channel tube, it is preferable that the sleeve 16 covers the treatment tool insertion hole of the operating section 92.

In an endoscopic examination, the tip 91A of the insertion part 91 is inserted to the deepest part of the body, and then is gradually removed while observation is performed. However, there is a risk that viruses and the like may be attached to the surface of the insertion part 91 that has been inserted into the body of the subject 100.

The protective device 1B reduces the risk of infection for medical personnel because the insertion section 91 is sealed in the sleeve 16.

The sleeve 16B is made of a flexible material to allow the insertion portion 91 to be grasped and manipulated. The sleeve 16B is also made of a thin material to prevent it from being bulky. For example, the sleeve 16B is made of a transparent or translucent flexible resin material such as polyethylene. The cross-sectional area of the cylindrical sleeve 16B may increase or decrease as it moves away from the ring 16A.

As shown in FIG. 14, as the insertion portion 91 is inserted into the body, the sleeve 16B is folded, for example, in a bellows shape. Then, when the insertion portion 91 is removed, the sleeve 16B returns to a cylindrical shape.

In other words, in the method of operating the protective device 1B, during the insertion process and the removal process, the insertion portion 91 is sealed by being housed in the sleeve 16 for the insertion portion, which is in communication with the first port 10.

After the endoscope 90 is removed, the port of the mask body 5 is closed with a cap. For example, when the mask body 5 is used together with the overmask 15, the insertion section 91 is sealed together with the mask body 5 by tying the opening on the neck side of the overmask 15 that has been removed from the subject (Figure 15).

The sleeve 16 for the insertion part allows medical personnel to complete examinations and processing without touching the insertion part 91. The sleeve 16 for the insertion part also reduces the risk of diffusion during transport to and in the reprocessing room where sterilization and other processes are performed.

Instead of the overmask 15, a bag may be used to seal the insertion section 91 after use. Also, the sleeve 16 may be removed from the mask body 5, and the ring 16A of the sleeve 16 may be covered with a bag.

Conventional endoscope sleeves and the like are used to protect the clean space inside the sleeve from the contaminated space outside the sleeve. In contrast, the sleeve of the present invention is used to house contaminated members in a substantially sealed state.

The shutter 6 may be disposed on the ring 16A of the sleeve 16, rather than on the mask body 5. Also, at least one of the second port for ventilation and the third port for suction may be disposed on the ring 16A, rather than on the mask body 5.

The ring 16A may be conical in shape, with the diameter decreasing with distance from the connection with the ring 10A of the first port 10, or may be a vertically long, horizontally long, or cross-shaped funnel. In a sleeve 16 having a ring 16A of the above shape, the bellows-shaped sleeve 16B does not enter the mask body 5A and come into contact with the mouth and nose of the subject 100 when the endoscope is inserted. In addition, the sleeve 16B of the above-mentioned sleeve 16 can be easily pulled out into a cylindrical shape when in use, from the folded state before use.

Fourth Embodiment
16 has a channel tube 95 extending from a tip 91A of an insertion section 91 to a treatment tool insertion port H95 of an operation section 92. A treatment tool sleeve 17 accommodates a treatment tool 99 to be inserted into the channel tube 95.

The sleeve 17 is a tube made of, for example, polyethylene, like the sleeve 16 for the insertion portion. The length of the sleeve 17 is approximately the same as the length of the treatment tool 99.

One opening of the sleeve 17 covers the lower part of the operating section 92 so as to seal the treatment tool insertion port H95. The other opening of the sleeve 17 is fixed using rubber 17A or the like so as to seal the end of the treatment tool 99. In the sleeve 17 shown in FIG. 16, the end of the treatment tool 99 is not housed in the sleeve 17, but the entire treatment tool 99 may be housed in the sleeve 17.

As shown in FIG. 17, when the treatment tool 99 is inserted into the channel tube 95 and the tip of the treatment tool 99 protrudes from the opening of the tip portion 91A of the insertion portion 91, the sleeve 17 is folded, for example, in a bellows shape.

In other words, when the treatment tool 99 is inserted and removed, the treatment tool 99 is housed in a substantially sealed state in the treatment tool sleeve 17 that communicates with the treatment tool insertion port H95.

The sleeve 17 for the treatment tool reduces the risk of infection for medical personnel when operating the treatment tool 99. It goes without saying that the mask body 5, the overmask 15, and the sleeve 16 for the insertion part can be used in conjunction with the sleeve 17 for the treatment tool.

Fifth Embodiment
As shown in FIG. 18, an operating portion 92 of an endoscope 90 is housed in a sleeve (cover) 18 for the operating portion.

The sleeve 18 is a tube made of, for example, polyethylene, like the sleeve 16 for the insertion section. The sleeve 18 covers the operation section 92 including the treatment tool insertion port H95 of the channel tube 95. That is, one end of the sleeve 18 is fixed to the tip side of the universal cord 93, and the other end is fixed to the lower part of the operation section 92 or the base end side of the insertion section 91.

In the sleeve 18A for the operating unit shown in FIG. 19A, there is a recess H18A between the opening O93 on the tip side of the universal cord and the opening O91 on the insertion section 91 side, which is shaped so that the hand 120 of the medical staff who operates the operating unit 92 can be inserted. The sleeve 18A is easier for medical staff to operate than the sleeve 18.

There may simply be an opening O120 through which a medical professional's hand can be inserted, such as the sleeve 18B for the operating part shown in FIG. 19B.

The sleeve 18 can reduce the risk of infection to medical personnel caused by operating the operating part 92. It goes without saying that it can be used in conjunction with the mask body 5, the overmask 15, the sleeve 16 for the insertion part, and the sleeve 17 for the treatment tool. In addition, multiple sleeves may be connected and integrated. For example, a sleeve in which the sleeve 16 for the insertion part and the sleeve 18 for the operating part are integrated is also preferably used.

Endoscopic examination using protective equipment including a sleeve is performed by a medical professional in the following order:

(A) The sleeve 16 for the insertion part and the sleeve 18 for the operation part are attached to the insertion part 91 and the operation part 92, and the endoscope 90 is hung on the scope hanger. (B) The sleeve 17 for the treatment tool is attached to the treatment tool 99, and the treatment tool 99 is hung on the treatment tool hanger. (C) The sleeve 16 for the insertion part is attached to the mask body 5. Also, the sleeve 17 for the treatment tool is attached to the treatment tool insertion port H95. (D) The examination/treatment is performed. (E) The sleeve 17 for the treatment tool is removed from the treatment tool insertion port H95, and the treatment tool 99 is hung on the treatment tool hanger. (F) The sleeve 16 for the insertion part is removed from the mask body 5, and the endoscope 90 is hung on the scope hanger. (G) The endoscope 90 and the treatment tool 99, with the sleeves 16, 17, and 18 still attached, are taken to a reprocessing room where ventilation and medical personnel's PPE (personal protective equipment) are being performed. (H) In the reprocessing chamber, remove the sleeves 16, 17, and 18 from the endoscope 90 and treatment tool 99, and begin reprocessing.

Alternatively, the medical professional may perform the steps in the following order:
(A) The sleeve 17 for the treatment tool is attached to the treatment tool 99, and the treatment tool 99 is hung on the treatment tool hanger. (B) The sleeve 16 for the insertion part, which is attached to the mask body 5 in advance, is stretched and attached to the insertion part 91. Also, the sleeve 17 for the treatment tool is attached to the treatment tool insertion port H95. (C) The examination/treatment is performed. (D) The sleeve 16 for the insertion part is removed from the mask body 5, and the endoscope 90 is hung on the scope hanger. (E) The endoscope 90 and the treatment tool 99 are taken to the reprocessing chamber with the sleeves 16 and 17 still attached. (F) In the reprocessing chamber, the sleeves 16 and 17 are removed from the endoscope 90 and the treatment tool 99, and reprocessing is started. The sleeve 16 may be taken to the reprocessing chamber together with the mask body 5 without being removed from the mask body 5.

Sixth Embodiment
20, the main body is a mouthpiece 5C that is to be held in the mouth of a subject. The first port 10 is provided at a position facing the mouth of the subject 100.

The mouthpiece 5C is provided with a second port 20 and a third port 30.

As shown in FIG. 21, the mouthpiece 5C is preferably used with a sleeve 16 for the insertion portion. In this case, the second port 20 and the third port 30 are disposed on the ring 16A of the sleeve 16 that fits with the ring 10A of the first port 10 of the mouthpiece 5C.

Moreover, as shown in FIG. 22, it is more preferable that the mouthpiece 5C is used together with an overmask 15B that covers the subject's head. In other words, it goes without saying that the mask body 5, the overmask 15, and the sleeve 16 for the insertion part can be used together with the mouthpiece 5C.

Seventh Embodiment
23, the main body is a buttocks main body 5D that is attached to the buttocks of a subject 100. The first port 10 is provided at a position facing the anus of the subject.

The protective device 1D is attached to pants 5D1 with an endoscope insertion port. The pants 5D1 have rings made of elastic material such as rubber around the waist and both ankles of the subject 100, and the inside is sealed. The protective device 1D is provided with a second port and a third port.

The protective device 1D shown in FIG. 23 is used together with a sleeve 16 for the insertion part. For this reason, the sleeve 16 may be provided with a second port and a third port. Also, instead of being attached to the pants 5D1, the protective device 1D may be fixed directly with a string or the like to a position facing the subject's anus.

The endoscope 90 described in the above embodiment has a flexible insertion section 91 that is a soft endoscope, but the endoscope of the present invention may have an inflexible rigid endoscope in which the insertion section 91 is the same as the tip section 91A.

It goes without saying that the configurations of the shutters, caps, connectors, and ports of the modified example of the first embodiment described in Figures 4A to 6B can also be used in other embodiments.

(delete)

The following describes the configuration of the endoscope protective equipment (protective equipment for endoscopic medical treatment) of the present invention in more detail. Note that the endoscope protective equipment of each embodiment described below is similar to the protective equipment already described and has the same effects, so components with the same functions are given the same reference numerals and descriptions are omitted.

Eighth Embodiment
The endoscope protection system 2 of this embodiment shown in Fig. 24 includes an endoscope protective mask 1A, which is an endoscope protective tool, and a suction device 200. The mask 1A includes a mask body 5 that is worn on the face of a subject 100 and forms a substantially sealed space between the mask and the face. The mask body 5 includes a first port 10 into which an insertion section 91 of an endoscope 90 is inserted, a second port 20 through which outside air flows into the space, and a third port 30 that is connected to the suction device 200 via a tube 210 and through which aerosols generated by the subject 100 are sucked in.

As shown in FIG. 25, the ring 10A of the first port 10 is covered with a rubber shutter 6 having multiple radially arranged first slits SL10. The first slits SL10 are connected by a first membrane 10S that is thinner than the thickness of the shutter 6.

When using the mask 1A, the operator (healthcare worker) 120 presses the mask 1A with a finger or the like to break the first membrane 10S and open the shutter 6, and then the insertion portion 91 of the endoscope 90 is inserted into the first port 10. Compared to a shutter without the first membrane 10S, the shutter 6 having the first membrane 10S does not sag in the direction of gravity during storage. The outer diameter of the insertion portion 91 and the optimal position of the insertion portion 91 in the first port 10 differ depending on the approach method, whether oral or nasal. The mask 1A allows the operator 120 to arbitrarily determine the position and size at which the first membrane 10S is broken. Therefore, the mask 1A is easy to operate and can improve the airtightness of the space it forms.

In addition, in order to prevent the first film 10S from being torn too deeply, it is preferable that the thickness of the central region of the shutter 6 is thinner than the thickness of the peripheral region.

The mask body 5 may be made of a transparent resin, but transparent resin may discolor (become stained) when sterilized. By using a resin containing a blue colorant as the material for the mask body 5, discoloration due to sterilization is not noticeable.

The fourth port 40 arranged in the mask body 5 is a hole through which a tube such as an intubation tube is inserted. The fourth port 40 is in communication with the end face of the mask body 5 via the second slit SL40. The second slit SL40 is connected to the second membrane 40S, which is thinner than the thickness of the end face of the mask body 5. The second membrane 40S is broken during use, but is effective not only in preventing leakage of aerosols and droplets, but also in maintaining the shape of the mask body 5. The fourth port 40 may also be covered with a thin membrane that is broken during use.

As shown in Figures 26A and 26B, for example, a cylindrical connector 72A with a flange (brim) 72F that is disposed in the third port 30 has an outer peripheral surface 72SA that fits with the inner peripheral surface of the third port 30, and has a slit SL72 (recess) in which a thin membrane 72S is provided on part of the outer peripheral surface 72SA.

The connector 72A with the flange 72F is easy to attach to and detach from the mask body 5. Furthermore, the connector 72A preferably has a slit to make it easier to remove from the third port 30. However, a cylindrical connector 72A with a slit may lose roundness during manufacturing. A connector 72A with a slit SL72 (recess) in which a thin membrane 72S is provided is easy to remove and has a high roundness.

Figures 26C to 26F show modified versions of the cap 73 shown in Figure 5C. The cap 74 shown in Figure 26C has a step 75 that abuts against the edge of the second port 20 when the cap 74 is inserted into the second port 20. This configuration allows the cap 74 to secure an opening of a predetermined size even when inserted to the deepest depth. The shape of the notch (opening) of the cap 74 is not limited to a rectangle, and by making it a trapezoid as shown in Figure 26D, friction with the inner surface of the second port 20 can be reduced and the operability of attaching, detaching, and rotating the cap 74 can be improved. Also, as shown in Figures 26E and 26F, a part of the opening on the side close to the flange 74F may be left, and the remaining part may be made of a thin film 74S similar to the connector 72A shown in Figure 26B.

As already explained, the cap can be rotated to orient the ventilation slits in a direction away from the medical worker 120. A cap with a high degree of roundness is easy to rotate.

The second port 20, the third port 30, and the ports 61 and 62 are the same size and shape, and the cap or connector to be attached can be selected depending on the position of the suction device 200, the posture of the subject 100, etc. For example, the second port 20 may be connected to the suction device 200.

As shown in FIG. 27, the mask body 5 has a hole H19 through which a string 19 is inserted to secure the mask to the face of the subject 100. The mask body 5 is attached to the face of the subject 100 by hanging the string 19 around the back of the subject's 100's head and then pulling both ends of the string 19.

The inner diameter of the hole H19 is smaller than the outer diameter of the string 19, but the mask body 5 has a third slit SL19 extending from the hole H19. By pulling the string 19, the mask body 5 is fixed in a state where it is in close contact with the face, forming a substantially sealed space between the mask body 5 and the face.

As shown in Figures 28 and 29, a sleeve 16 (sleeve for insertion part) having a cylindrical first sleeve 16B in which the insertion part 91 of the endoscope 90 is housed is fixed to the mask body 5. The sleeve 16 has a ring 16A and a hook 16C provided at one end of the first sleeve 16B. The ring 16A of the sleeve 16 is fixed to the mask body 5 without any gaps by fitting with the ring 10A of the first port 10. Two hooks 16C are provided on the ring 16A at one end of the cylindrical sleeve 16B. The two hooks 16C engage with the ring-shaped protrusions of the ring 10A of the first port 10, thereby fixing the sleeve 16.

The mask body 5 and sleeve 16 are fixed by ring 10A and ring 16A, so the sleeve 16 can be fixed at any rotation angle relative to the mask body 5. In addition, the two hooks 16C can be operated with just two fingers, so the sleeve 16 is easy to put on and take off.

As shown in FIG. 30, when pushing in the insertion part 91 of the endoscope 90, the insertion part 91 is grasped by the operator 120 together with the cylindrical sleeve 16B. By pushing in the insertion part 91, the sleeve 16B is folded in the vicinity of the mask. This requires the operation of smoothing out any wrinkles that have formed in the sleeve 16B.

As shown in FIG. 31, when the insertion portion 91 of the endoscope 90 is pulled out, the sleeve 16B is first folded near the mask. Then, the insertion portion 91 is pulled out.

Although not shown, the insertion section 91 is pre-applied with a water-soluble medical lubricant. As already described, the base end side of the sleeve 16B is fixed, for example, to the rear end of the insertion section 91 or the lower part of the operation section 92 using tape or ribbon (see FIG. 14).

When removing the insertion portion 91 of the endoscope 90, the air inside the cylindrical sleeve 16B is squeezed out and the sleeve 16B is folded up near the mask. Then, as shown in Figures 32 and 33, the hook 16C is released, and the first sleeve 16 is removed from the mask body 5 together with the insertion portion 91.

Ninth embodiment
The endoscope protective equipment of this embodiment shown in FIG. 34 is a cover (sleeve for operation portion) 18C that covers the operation portion 92 of an endoscope 90.

Cover 18C is made by gluing two rectangular pieces of film together at two sides. In other words, cover 18C is a rectangular bag with two openings on both sides.

A hook-and-loop fastener 18D, which is a fixing member, is disposed in the opening. After storing the operation part 92 of the endoscope 90, the hook-and-loop fastener 18D is closed, and the cover 18C is fixed in a state in which it covers the operation part 92.

As shown in FIG. 35, each of the two films has an opening H18, which is a port through which the hand of the operator 120 is inserted. This allows the operator to insert his/her hand through whichever opening provides better workability, or to insert both hands through each opening. Also, the operation dial portion of the operation unit 92 may protrude from an opening H18 other than the opening H18 through which the hand is inserted. Of course, only one of the two films may have an opening H18.

The opening H18 is inserted through the fourth slit SL18. Therefore, even if the opening H18 is small, it is easy to insert the hand, and the spread and contamination of droplets and aerosols can be reduced.

Tenth Embodiment
The endoscope protective tool of this embodiment shown in FIGS. 36 to 39 is a third sleeve 17B for a treatment tool.

As shown in FIG. 36, the cylindrical third sleeve 17B is folded and sandwiched between two plates 17C, and is packaged, for example, with a rubber band 17D. The cylindrical first sleeve 16 for the insertion portion is also packaged in the same manner as the third sleeve 17B.

As shown in FIG. 37, the third sleeve 17B is folded and inserted up to the proximal side of the treatment tool 99. The third sleeve 17B is then extended to a position where it fully covers the tip of the treatment tool 99. The proximal side of the third sleeve 17B is fixed to the treatment tool 99 using a ribbon 17E or the like.

The end of the third sleeve 17B is divided into two end faces 17S1 and 17S2 by a fifth slit SL17. A hook-and-loop fastener 17F, which is a fastening member for bonding the two end faces 17S1 and 17S2 together, is provided on the two end faces 17S1 and 17S2.

As shown in FIG. 38, the cover 18C covering the operating section 92 is rolled up to expose the treatment tool insertion port H95, and the treatment tool 99 is inserted into the treatment tool insertion port H95 with the third sleeve 17B folded up so that the tip of the treatment tool 99 is exposed.

As shown in FIG. 39, the two end faces 17S1 and 17S2 of the third sleeve 17B are attached together by a hook-and-loop fastener 17F with the operating section 92 sandwiched between them.

Eleventh Embodiment
The endoscope protective equipment of this embodiment shown in Figures 40 and 41 is a large intestine endoscope pad 1DA having a buttocks main body 5DA to be worn on the buttocks of a subject 100. The buttocks main body 5DA is equipped with a second port 20 through which outside air flows into the space, and a third port 30 that is connected to a suction device 200 via a tube 210 and through which aerosol generated from the subject 100 is sucked in. The buttocks main body 5DA is fixed to the buttocks using a belt 19A.

The shutter 6 of the first port 10 into which the insertion section 91 of the endoscope 90 is inserted is opened when the operator 120 presses it with a finger or the like during use, in the same manner as the shutter 6 shown in FIG. 25. Although not shown, the first sleeve 16 is fixed to the buttocks body 5DA in the same manner as in FIG. 28.

The present invention is not limited to the above-described embodiments, and various modifications, combinations, and applications are possible without departing from the spirit of the invention.

This application claims priority from international patent application PCT/JP2020/026165, filed on July 3, 2020, and international patent application PCT/JP2021/025367, the disclosures of which are incorporated herein by reference in the specification and claims of this application.

Reference Signs List 1, 1A to 1D... Endoscope protective equipment 5... Main body 6... Shutter 10... First port 15... Overmask 16... Sleeve for insertion portion 17... Sleeve for treatment tool 18... Sleeve for operation portion 20... Second port 30... Third port 40... Fourth port 61, 62... Ports 71 to 74... Cap 72A... Connector 72F, 74F... Flange 75... Step 90... Endoscope 91... Insertion portion 91A... Tip portion 92... Operation portion 93... Universal cord 95... Channel tube 96... Plug 99... Treatment tool 100... Subject 120... Medical worker (operator)
200...Suction device

Claims (24)

A fixing member and a pad are included.
The fixing member is attached to the buttocks of the subject and holds the pad facing the anus of the subject;
The pad forms a substantially sealed space between the pad and the buttocks,
a first port disposed on the pad and into which an insertion portion of an endoscope is inserted;
a second port disposed in the pad through which outside air flows into the space;
A protective equipment for an endoscope, comprising: The protective equipment for endoscopes according to claim 1, characterized in that the fixing member is pants whose inside is sealed when worn by the subject. The protective equipment for an endoscope according to claim 1, characterized in that the fixing member is a belt. The protective equipment for an endoscope according to claim 1, further comprising a third port disposed on the pad, connected to a suction device, through which aerosols generated by the subject are sucked in. The endoscope protective device according to claim 4, characterized in that the second port and the third port have the same size and shape. The protective device for an endoscope according to claim 1, further comprising a shutter that covers the first port. the shutter is made of rubber having a plurality of first slits arranged radially;
7. The protective equipment for an endoscope according to claim 6, wherein the first slit is connected by a first film having a thickness thinner than that of the shutter. The protective device for an endoscope according to claim 1, characterized in that the cross-sectional area of the joint between the second port and the pad is larger than the cross-sectional area of the second port. A main body that is attached to a subject and forms a substantially sealed space between the main body and the subject;
a first port disposed in the main body and into which an insertion portion of an endoscope is inserted;
a second port disposed in the main body and penetrating from the space to the outside;
a third port disposed in the main body and penetrating from the space to the outside;
The protective equipment for an endoscope, wherein the second port and the third port have the same size and shape. The endoscope protective device according to claim 9, characterized in that the main body is a pad that is attached to the buttocks of the subject. The endoscope protective device according to claim 9, characterized in that the main body is a mask that is worn on the face of the subject. The protective device for an endoscope according to claim 9, characterized in that the cross-sectional area of the joint between the second port and the main body is larger than the cross-sectional area of the second port. a fourth port disposed in the body and being a hole through which a tube is inserted;
10. The protective tool for an endoscope according to claim 9, wherein the fourth port communicates with the end face of the main body through a second slit. A main body that is attached to a subject and forms a substantially sealed space between the main body and the subject;
a first port disposed in the main body and into which an insertion portion of an endoscope is inserted;
a second port disposed in the main body through which outside air flows into the space;
A protective device for an endoscope, wherein a cross-sectional area of a joint between the second port and the main body is larger than a cross-sectional area of the second port. The endoscope protective device according to claim 14, characterized in that the main body is a pad that is attached to the subject's buttocks. The endoscope protective device according to claim 14, characterized in that the main body is a mask that is worn on the face of the subject. The protective equipment for an endoscope according to claim 14, further comprising a third port disposed on the main body, connected to a suction device, through which aerosol generated from the subject is sucked in. The endoscope protective device according to claim 17, characterized in that the second port and the third port have the same size and shape. The protective equipment for an endoscope according to claim 14, further comprising a fourth port disposed in the main body and through which a tube is inserted, the fourth port being in communication with the end face of the main body via a second slit. The endoscope is configured to be attached to a port of a protective device for an endoscope that is worn on a subject to form a substantially sealed space,
A cap for an endoscope protective device, comprising a contact portion with a slit that contacts the inner surface of the port, and the area of the ventilation hole formed by the slit can be adjusted by adjusting the depth to which it is pressed into the port. A mark indicating the direction of the slit is provided,
21. The cap for an endoscope protective equipment according to claim 20, characterized in that the direction of the slit serving as the ventilation opening can be changed by rotating the cap. The cap for an endoscope protective device according to claim 20, characterized in that a portion of the slit is covered with a thin membrane. The cap for an endoscope protective device according to claim 20, characterized in that the slit is rectangular. The cap for an endoscope protective device according to claim 20, characterized in that the slit is trapezoidal.

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