JP2019130005A - Imaging apparatus, display system, and surgery system - Google Patents

Abstract

To provide an imaging apparatus, a display system and a surgery system capable of coping with various surgical procedures and affected parts and widely applying endoscopic surgery.SOLUTION: An imaging apparatus 10 is configured to be capable of imaging a body cavity, and includes an imaging element 11, an opening member 12, an optical member 13, and a fixing member 14. The opening member 12 includes a tubular portion 120 extending from a body surface 5 to an abdominal cavity 2. The optical member 13 is a member that receives light reflected in the abdominal cavity 2 and guides the incident light to the imaging element 11. The fixing member 14 is a member which fixes at least one of the optical member 13 and the imaging element 11 to the opening member 12.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an imaging device that images a body cavity, a display system, and a surgical system.

  Endoscopic surgery is performed as a minimally invasive surgical method for reducing the burden on the patient due to surgery. In endoscopic surgery, an endoscope is used for incising a few cm of the body wall and observing the inside of the body cavity, and a treatment tool for therapeutic treatment is inserted into the body cavity. Take action while watching. The observation range of the endoscope is about several millimeters to several centimeters, and the surgeon can confirm only the distal end portion of the treatment instrument and the periphery of the affected area. In this method, treatment is often performed while moving the endoscope, and in that case, a scopist (physician) is required to move the endoscope in addition to the surgeon and assistant. Therefore, when an endoscopic operation is performed, at least the surgeon, assistant, and scopist are present around the surgical field, and the operation is performed in a crowded state in a limited space.

  In addition, in the case of a normal laparoscope, the field of view is limited to the distal end portion of the treatment tool and the periphery of the affected area, so that detection of bleeding from a place other than the affected area may be delayed. As means for solving these problems, there is a method of fixing the camera to the body wall. However, as described in Patent Document 1 as a conventional technique, the imaging means is fixed inside the body wall for the purpose of imaging a wide range of the body cavity. An endoscope system is disclosed.

JP 2008-307224 A

  However, the imaging unit disclosed in Patent Document 1 can remove the imaging unit from the body wall in order to remove the clouding or dirt at the tip of the optical member, for example, when the tip of the optical member is clouded or dirty. Have difficulty.

An imaging apparatus, which is an embodiment of the present invention,
An imaging device for imaging a body cavity,
An image sensor;
An opening member including a cylindrical portion extending from the body surface to the body cavity;
An optical member that guides incident light incident from the body cavity to the imaging device, wherein at least a part of the optical member is located in an internal space of the cylindrical portion;
A fixing member that fixes at least one of the optical member and the imaging element to the opening member and maintains airtightness of the body cavity.

Moreover, the display system which is one Embodiment of this invention is equipped with said imaging device and the display apparatus which displays at least one part of the image imaged with the said imaging device.
Moreover, the surgery system which is one Embodiment of this invention is equipped with said display system and the treatment tool inserted in the said body cavity.

  According to the imaging apparatus which is one embodiment of the present invention, a wide field of view in the body cavity can be provided by fixing at least one of the optical member and the imaging element to the body wall via the opening member. In addition, it is relatively easy to attach and detach the optical member that is held in a state where the body wall is opened by the cylindrical portion and at least a part of the optical member is located in the internal space of the cylindrical portion.

  According to the display system and the surgical system, which are an embodiment of the present invention, an easy-to-use system is provided by using an imaging device that allows easy attachment and detachment of at least one of the optical member and the imaging device to the body wall. can do.

It is a schematic diagram which shows the surgery system which concerns on this embodiment. It is an expanded sectional view expanding and showing the neighborhood of an imaging device. It is an expanded sectional view showing other embodiments of an imaging device. It is an expanded sectional view showing other embodiments of an imaging device. It is an expanded sectional view showing other embodiments of an imaging device.

  Hereinafter, an imaging device, a display system, and a surgery system according to embodiments of the present invention will be described in detail with reference to the drawings. In the drawings described below, the same components are denoted by the same reference numerals. Further, the size of each member, the distance between the members, and the like are schematically illustrated, and the scale may be different from the actual one. In addition, the following embodiment is an illustration and this invention is not limited to these embodiment.

  FIG. 1 is a schematic diagram illustrating a surgical system according to the present embodiment. The surgical system S includes a display system 100 and a treatment instrument 4 inserted into a body cavity. The surgical system S of the present embodiment is a surgical system used in endoscopic surgery. Endoscopic surgery mainly includes laparoscopic surgery and thoracoscopic surgery as surgery in the body cavity, and the surgical operation system S of this embodiment can be applied to any surgical method. Specific examples of the body cavity include the abdominal cavity and the chest cavity, and specific examples of the body wall include the abdominal wall and the chest wall. In addition, the surgical system S can be applied even to surgical procedures other than the abdominal cavity and thoracic cavity, such as brain surgery in the ventricle.

  Below, the case where the operation system S of this embodiment is used for a laparoscopic operation is demonstrated to an example. In other embodiments subsequent to the present embodiment, the case where it is used for laparoscopic surgery is taken as an example, unless otherwise specified, the abdominal cavity is an example of a body cavity, and the abdominal wall is an example of a body wall. . Although details will be described later, the display system 100 according to the present embodiment corresponds to a laparoscope, and displays an imaging device 10 that images the abdominal cavity and at least a part of an image captured by the imaging device 10. Device 50. The imaging device 10 images the abdominal cavity and causes the display device 50 to display the captured image.

  In the laparoscopic surgery, the abdominal cavity 2 which is the space between the abdominal wall 1 and the internal organs is kept inflated (pneumo-abdominal) by feeding, for example, carbon dioxide gas by an unillustrated abdominal needle. Is done. Various treatment tools 4 required for the surgical procedure are inserted into the abdominal cavity 2 through a trocar 3 that punctures and penetrates the abdominal wall 1. An abdominal wall near the umbilicus is incised, and the imaging device 10 of the present embodiment is fixed to the incision. When the abdominal cavity is inflated, the umbilicus is approximately at the apex position. By fixing the imaging device 10 at the position of the umbilicus, a wide area can be imaged from above the abdominal cavity. Note that the fixing position of the imaging device 10 is not limited to the vicinity of the umbilicus part, and an incision is formed at an appropriate position according to the surgical method in which the surgical system S is used, and the imaging device 10 is fixed. May be. The imaging device 10 is used in a state of being fixed at a fixed position, and the treatment tool 4 is inserted into the abdominal cavity 2 at a position different from the fixed position of the imaging device 10.

  As the trocar 3 and the treatment instrument 4 used in the surgical system S of the present embodiment, conventionally known ones can be used. One or a plurality of trocars 3 can be used depending on the treatment instrument 4 required in each surgical procedure. Regarding the treatment tool 4, for example, a grasping forceps for grasping the affected part, an ultrasonic coagulation incision device (ultrasonic knife) for performing incision and hemostasis of the affected part, etc. Use it.

  The display system 100 of the present embodiment includes the imaging device 10 and the display device 50 as described above. The display control unit 60 controls the display of the image captured by the imaging device 10 on the display device 50. In the present embodiment, the display device 50 includes a first display unit 51 and a second display unit 52 that are two display devices. The first display unit 51 displays all or part of the image captured by the imaging device 10. The second display unit 52 displays an enlarged image obtained by enlarging a part of the region P displayed on the first display unit 51 among the images captured by the imaging device 10.

  The display control unit 60 is constituted by, for example, a CPU (Central Processing Unit) and a storage unit arranged in a housing, and the first display unit 51 and the second display unit 60 are arranged according to an image display program stored in the storage unit. Each image is displayed on the display unit 52. When the image data acquired by the imaging device 10 is input to the display control unit 60, the entire image data or the outer peripheral portion is trimmed in accordance with the display screen of the first display unit 51 or the like. A part of the cut-out image is displayed on the first display unit 51 as a whole image (wide-angle image) showing the abdominal cavity.

  On the second display unit 52, an image of a part of the region P displayed on the first display unit 51 is displayed. The image displayed on the second display unit 52 may be an enlarged image obtained by enlarging a part of the region P or a reduced image obtained by reducing a part of the region P. The same size image may be used. In the following, a case where an enlarged image is displayed will be described, but the same applies to a reduced image or an equal-sized image. The enlarged image displayed on the second display unit 52 includes, for example, an affected part that is a target of surgery. The surgeon and assistant who perform surgery mainly operate the treatment tool 4 while viewing the enlarged image displayed on the second display unit 52 to perform necessary treatment such as excision on the affected part.

  On the other hand, the first display unit 51 displays an image showing the entire abdominal cavity. The surgeon and assistant perform the operation while confirming the vicinity of the affected area with the enlarged image displayed on the second display unit 52 and confirming the entire abdominal cavity with the entire image displayed on the first display unit 51. Can do. For example, when an abnormality such as bleeding occurs at a site away from the affected part during surgery, it is difficult to notice the generated abnormality only with the image around the affected part displayed on the second display unit 52. As in the present embodiment, by confirming the entire image of the abdominal cavity with the first display unit 51, the surgeon and assistant can quickly notice the abnormality that has occurred and can take appropriate measures.

  Depending on the technique, the enlarged image displayed on the second display unit 52 may be a fixed region. As the operation progresses, the position of the region P to be enlarged is indicated by the first display unit 51. It may be necessary to change within the image displayed in. In conventional endoscopic surgery, a doctor, a scopist, moves the endoscope as appropriate to change the imaging position. In the present embodiment, the display device 50 may include an area designation unit 53 that designates an area P to be enlarged from the image displayed on the first display unit 51. The area specifying unit 53 can be realized by various coordinate input devices such as a mouse and a joystick in addition to the touch panel and the pen tablet, for example. For example, the touch panel may be disposed so as to overlap the display screen of the first display unit 51 that displays the entire intra-abdominal image or a wide-area image thereof.

  The operator operates the area specifying unit 53 to display the coordinates of the area P to be enlarged and displayed on the second display unit 52 with respect to the image currently displayed on the first display unit 51 by the coordinate input device. It can be specified. In particular, on the touch panel, coordinates can be input intuitively only by an operator performing a touch operation. The operator designates a partial region of the image displayed on the first display unit 51 using the region designation unit 53 while watching the progress of the operation. The display control unit 60 cuts out the portion of the designated area from the image displayed on the first display unit 51, performs an enlargement process on the cut-out image, and enlarges the entire display screen of the second display unit 52 as an enlarged image. Display. Thereby, the same operation as the operation of the endoscope by the scopist can be realized by the touch panel operation. Since this operator does not operate the endoscope, it is not always necessary to be a doctor, and a nurse or other surgical assistant can also be an operator. In addition, when using the surgical system S of the present embodiment, the operator may be positioned in the vicinity of the area specifying unit 53, in the case of the touch panel, in the vicinity of the first display unit 51. There is no need to be positioned beside the patient for the operation of the endoscope, so that the movement of the surgeon and assistant is not restricted during the operation.

  In the present embodiment, the display device 50 is configured to include two display devices, the first display unit 51 and the second display unit 52. However, the present invention is not limited to this, and the first device displays a whole image (wide area image). A plurality of display devices corresponding to the display unit 51 may be installed, or a plurality of display devices corresponding to the second display unit 52 for displaying an enlarged image may be set. By installing a plurality of each, a larger number of people can visually confirm the displayed image. When a plurality of second display units 52 are installed, a plurality of regions P to be enlarged among the images displayed on the first display unit 51 are designated by the region designation unit 53 and displayed for each second display unit 52. Different areas can be used. Also, a plurality of area designating units 53 may be installed and operated by a plurality of people. Control for displaying one image on a plurality of display devices may be performed by the display control unit 60 using known multi-display control.

  A coordinate input device such as a touch panel may be provided on the second display unit 52, an area may be designated for the image displayed on the second display unit 52, and a necessary image may be displayed by performing an enlargement process or a reduction process. it can. Of the entire image displayed on the first display unit 51, in the region excluding the region displayed on the second display unit 52, for example, a region where a local sudden change has occurred is detected by image processing, A warning message indicating the occurrence of an abnormality may be displayed on the second display unit 52, assuming that some abnormality such as bleeding has occurred. In an area other than the area displayed on the second display unit 52, for example, an area having a color tone different from that of the other part is detected by image processing, and it is assumed that the surgical instrument such as gauze may be left in the body. A warning message indicating that the device is left may be displayed on the unit 52.

  The image data communication between the display device 50 and the display control unit 60 may be by wired connection via a signal cable or the like. For example, a communication method such as Wi-Fi (registered trademark) or Bluetooth (registered trademark) is used. It may be based on a wireless connection used. Further, the display control unit 60 switches between the output of the image data of the entire image to be displayed on the first display unit 51 and the output of the image data of the enlarged image to be displayed on the second display unit 52, so that one display The apparatus may be configured to serve as both the first display unit 51 and the second display unit 52.

  FIG. 2 is an enlarged cross-sectional view showing the vicinity of the imaging apparatus in an enlarged manner. The imaging device 10 includes an imaging element 11, an opening member 12, an optical member 13, and a fixing member 14. The imaging device 11 may be realized by a semiconductor device such as a CCD (Charged Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), and may receive image light from a subject (abdominal cavity) and generate image data. In the present embodiment, the whole or wide area of the abdominal cavity is imaged and an enlargement process is performed on a part of the imaged image area. Therefore, the image sensor 11 has higher resolution (so-called 4K and 8K, etc.). An element is preferably used, but is not limited to this. The imaging element 11 having a suitable resolution may be used according to the size of the abdominal cavity to be imaged, the size of the affected part to be enlarged, and the like. Image data generated by the image sensor 11 is transmitted to the display control unit 60. Similar to the image data communication between the display device 50 and the display control unit 60, the image data communication between the imaging device 11 and the display control unit 60 may be wired connection or wireless connection.

  The opening member 12 includes a cylindrical portion 120 that extends from the body surface 5 to the abdominal cavity 2. The cylindrical portion 120 only needs to have a body surface side end 121 located substantially at the same position as the body surface 5 and extend in a cylindrical shape from there to the abdominal cavity 2, and the body cavity side end 122 is positioned within the abdominal cavity 2. There is no need to do. The body cavity side end portion 122 may be located in the abdominal cavity 2 or may be located in the thickness of the abdominal wall 1. For example, the cylindrical portion 120 only needs to expand an abdominal wall incision or natural opening to ensure a space (also referred to as a port) that communicates from the outside of the body surface 5 into the abdominal cavity 2. In the cylindrical portion of the present embodiment, the cross-sectional shape orthogonal to the axial line is a constant straight cylindrical shape that does not change along the axial direction, the cross-sectional shape is a circular straight cylinder, and the cross-sectional shape is a polygon. A right-angle cylinder shape etc. may be sufficient and a cross-sectional shape is not limited.

  The optical member 13 is a member that receives light reflected in the abdominal cavity 2 and guides the incident light to the image sensor 11. At least a part of the optical member 13 is located in the internal space of the cylindrical portion 120. The optical member 13 can be realized by, for example, a configuration in which an optical lens group is disposed in a lens barrel or a configuration including an optical fiber having a condensing lens or the like attached to the tip. In the present embodiment, the tip 131 of the optical member 13, that is, the part where the light reflected in the abdominal cavity 2 as the subject is incident is located in the internal space of the cylindrical part 120. The tip 131 position of the optical member 13 may be close to the body surface 5 or the abdominal cavity 2 as long as it is within the internal space of the cylindrical portion 120, and the tip 131 position is set according to the image to be captured. You can also Here, for example, the tip 131 of the optical member 13 may be positioned in the abdominal cavity 2.

  As described above, the opening member 12 is a member for ensuring a sufficient space in the thickness portion of the abdominal wall 1 by the cylindrical portion 120 so that more light is incident on the optical member 13. Therefore, if it has at least the cylindrical portion 120, the function as the opening member 12 is exhibited. On the other hand, since the outside of the body surface 5 communicates with the inside of the abdominal cavity 2 by the cylindrical portion 120, carbon dioxide gas filled in the abdominal cavity 2 may be leaked to the outside due to the pneumoperitoneum. The fixing member 14 described later maintains the airtightness of the abdominal cavity 2 and maintains the state of the pneumoperitoneum.

  In the present embodiment, the opening member 12 is further circumferentially extended from the body flange side end portion 122 of the first flange portion 123 and the cylindrical portion 120 extending outward in the circumferential direction from the body surface side end portion 121 of the cylindrical portion 120. While including outwardly extending second flange portions 124, these are not essential components of the aperture member 12. The first flange portion 123 has, for example, an annular shape, and may be positioned so as to be in close contact with the body surface 5. Moreover, the 2nd flange part 124 has an annular | circular shape, for example, and may be located so that it may contact | adhere to the inner surface of the abdominal wall 1.

  For example, the first flange portion 123 holds the cylindrical portion 120 on the body surface 5 side, and the cylindrical portion 120 moves in the thickness direction of the abdominal wall 1, particularly in the direction toward the abdominal cavity 2, and the position thereof is shifted. Can be suppressed. Further, since the first flange portion 123 is in close contact with the body surface 5, there is also a sealing function that suppresses the carbon dioxide gas from leaking from the gap between the outer peripheral surface of the cylindrical portion 120 and the abdominal wall 1 from the stomach. It can be demonstrated.

  For example, the second flange portion 124 holds the cylindrical portion 120 on the abdominal cavity 2 side, and the cylindrical portion 120 moves in the thickness direction of the abdominal wall 1, particularly in the direction toward the body surface 5, and the position thereof is shifted. Can be suppressed. Furthermore, the second flange portion 124 is in close contact with the inner surface of the abdominal wall 1, thereby suppressing the carbon dioxide gas for pneumothorax from leaking from the gap between the outer peripheral surface of the cylindrical portion 120 and the abdominal wall 1. Can also be demonstrated.

  Considering that the material of the opening member 12 is in direct contact with the abdominal wall 1 and that the opening member 12 itself is preferably airtight between the abdominal wall 1 and the like, for example, silicone resin, polyethylene, polypropylene, Polymer materials such as polyvinyl chloride, polyacrylonitrile, polystyrene, polymethyl methacrylate, polyoxymethylene, polyisoprene, poly L lactic acid, polycarbonate, polyamide, polysulfone, polyurethane, polyether ether ketone, polyparylene, and cyclic polyolefin are used. be able to. When the opening member 12 is used for a long time, the opening member 12 made of a biocompatible material such as silicone resin or polyethylene may be used in consideration of the influence on the abdominal wall 1. The cylindrical portion 120, the first flange portion 123, and the second flange portion 124 may be integrally formed of the same material, or may be formed of different materials. Good.

  The fixing member 14 is a member that fixes at least one of the optical member 13 and the image sensor 11 to the opening member 12. The fixing member 14 is configured to maintain the airtightness of the abdominal cavity 2. The fixing member 14 includes a holding portion 140 that holds the optical member 13, a connecting portion 141 that is connected to the opening member 12 and is connected to the opening member 12, and fixes the optical member 13 together with the holding portion 140 to the opening member 12. And a sealing portion 142 for maintaining the airtightness of the two. The holding portion 140 is, for example, a ring-shaped member that surrounds the optical member 13. The connection portion 141 is, for example, a large-diameter annular plate member that further surrounds the holding portion 140, and is connected to the opening member 12 so as to cover the cylindrical portion 120. In the present embodiment, the opening member 12 includes the first flange portion 123, and the connection portion 141 is connected to the body surface side end portion 121 of the cylindrical portion 120 and also covers the first flange portion 123. Is connected to the opening member 12. The seal portion 142 includes a seal member such as an O (O) ring, and is provided for airtightness in a contact portion between the optical member 13 and the holding portion 140 and airtightness in other portions. In addition, the airtightness can be further improved by bonding and fixing the fixing member 14 and the optical member 13 with a bioadhesive, an adhesive, or the like, or bonding and fixing the opening member 12 and the abdominal wall 1. For example, in the present embodiment, the image pickup device 11 is positioned on the optical axis of the optical member 13 and on the opposite side of the tip 131 so as to receive light traveling through the optical member 13. It is fixed integrally. The position of the image sensor 11 may be inside the cylindrical portion 120 or outside the internal space as long as it can receive the light traveling through the optical member 13. The image sensor 11 and the optical member 13 can be easily detached from the fixing member 14 and attached to the fixing member 14.

  As described above, the fixing member 14 can fix the optical member 13 to the opening member 12 and block the opening of the opening member 12 to suppress the leakage of carbon dioxide gas from the abdominal cavity. The fixing member 14 has few portions in direct contact with the abdominal wall 1, but the same material as the material of the opening member 12 is used as long as it has rigidity and mechanical strength for fixing the optical member 13. It is also possible to use metal materials and ceramic materials in order to increase rigidity and mechanical strength.

  The optical member 13 can be fixed to the abdominal wall 1 only by the fixing member 14. Further, the optical member 13 is connected to the arm member 15 extending from a part of equipment in the operating room, for example, the support column 16 and the like. Further, the optical member 13 may be fixed more stably.

  The imaging apparatus of the present embodiment configured as described above provides a wide field of view within the abdominal cavity by fixing at least one of the optical member 13 and the imaging element 11 to the body wall via the opening member 12. Can do. Further, the incision or natural opening of the abdominal wall 1 is held open by the cylindrical portion 120 of the opening member 12, and the internal space of the cylindrical portion 120 serves as a communication space from the body surface 5 to the abdominal cavity 2. Secured. Therefore, it is relatively easy to attach and detach the optical member 13 at least a part of which is located in the internal space of the cylindrical portion 120 to the abdominal wall 1. Thereby, for example, when the tip of the optical member 13 is clouded or dirty, the optical member 13 is removed, and the tip of the optical member 13 is wiped or washed with water to remove the cloudy or dirty. Can do. Then, the optical member 13 from which cloudiness or dirt is removed can be attached to the abdominal wall 1 again.

  FIG. 3 is an enlarged cross-sectional view showing another embodiment of the imaging apparatus. In the present embodiment, the configuration of the optical member 13 is different from that of the above-described embodiment, and other configurations are the same, and thus detailed description thereof is omitted. Specifically, the optical member 13 includes a movable portion 132 that can move in the thickness direction of the abdominal wall 1 in the internal space of the cylindrical portion 120. The movable portion 132 can use a configuration similar to a known zoom lens. That is, it is sufficient that a part of the lens barrel and a part of the lens are configured to be movable along the optical axis direction. The mechanism for moving the movable part 132 in the thickness direction of the abdominal wall 1 may be, for example, a manual type such as an operator rotating a dial or operating a lever. It may be a motorized type that uses.

  The position of the tip 131 of the optical member 13 can be changed by moving the movable part 132 in the thickness direction of the abdominal wall 1 manually or electrically. When the position of the tip 131 changes, the incident light incident on the optical member 13 changes, so that the imageable region in the abdominal cavity 2 can be changed. Also, the focal position can be changed. Note that the position of the tip 131 of the optical member 13 is not limited to the movement of the cylindrical portion 120 in the internal space, and may be movable until it is located in the abdominal cavity 2.

  FIG. 4 is an enlarged cross-sectional view showing still another embodiment of the imaging apparatus. In the present embodiment, the configuration of the opening member 12 is different from that of the above-described embodiment, and other configurations are the same, and thus detailed description thereof is omitted. Specifically, the cylindrical portion 120A of the opening member 12 is not a straight cylindrical shape as in the above-described embodiment, but has a frustum shape or a tapered shape in which the inner diameter increases toward the abdominal cavity. The frustum shape may be a truncated cone or a truncated pyramid. In the present embodiment, the inner diameter continuously increases from the body surface side end portion 121 to the body cavity side end portion 122, but a part including the body surface side end portion 121 is a straight cylinder shape, and is connected to the body cavity side. The remaining portion including the end portion 122 may have a frustum shape with an increased inner diameter.

  By using such a cylindrical portion 120 </ b> A, the opening area of the body cavity side end portion 122 is wider than the opening area of the body surface side end portion 121 of the cylindrical portion 120. Compared to the straight cylindrical shape, reflected light from a wider area in the abdominal cavity 2 is incident on the optical member 13, so that a wider-angle captured image can be obtained.

  FIG. 5 is an enlarged cross-sectional view showing still another embodiment of the imaging apparatus. The present embodiment is different from the above-described embodiment in the configuration further including the light source 70, and the other configurations are the same, and thus detailed description thereof is omitted. Specifically, the light source 70 emits light to the abdominal cavity 2. The light emitted from the light source 70 is reflected on the surface of each part of the abdominal cavity 2, and the reflected light enters the optical member 13. By providing the light source 70, the amount of reflected light, that is, the amount of incident light of the optical member 13 increases. As the amount of incident light increases, the amount of information included in the image captured by the image sensor 11 increases, and the visibility of the intra-abdominal 2 image and the enlarged image displayed on the first display unit 51 and the second display unit 52 increases. improves. The light source 70 is at least partially located in the internal space of the cylindrical portion 120. By setting it as such a position, the light quantity radiate | emitted to the abdominal cavity 2 can be increased further.

  For example, the light source 70 may be fixed to the fixing member 14 independently of the optical member 13 or may be provided at the tip 131 of the optical member 13. When provided at the tip 131 of the optical member 13, for example, a ring light in which light emitting elements such as LEDs (Light Emitting Diodes) are arranged in a ring shape can be used so as not to block incident light incident on the optical member 13.

  Further, when the optical member 13 includes the movable part 132, the light source 70 is provided in the inner space of the cylindrical part 120 as the movable part 132 moves by providing the light source 70 at the tip 131 thereof. The abdominal wall 1 can be moved in the thickness direction. In addition, it is good also as a structure which can move only the light source 70 in the internal space of the cylindrical part 120 independently of the movable part 132. FIG.

  In each of the above embodiments, the imaging element 11 is fixed by the fixing member 14 in the same manner as the optical member 13. Instead, if the incident light incident on the optical member 13 can be transported by an optical fiber or the like, the imaging element 11 is received by a position away from the patient without being fixed by the fixing member 14. Also good. For example, the imaging element 11 may be arranged in the same casing as the display control unit 60, and incident light may be conveyed from the optical member 13 fixed to the fixing member 14 to the casing by an optical fiber.

DESCRIPTION OF SYMBOLS 1 Abdominal wall 2 Abdominal cavity 3 Tracar 4 Treatment tool 10 Imaging device 11 Imaging element 12 Opening member 13 Optical member 14 Fixing member 15 Arm member 16 Support | pillar 50 Display apparatus 51 1st display part 52 2nd display part 53 Area | region designation | designated part 60 Display control part DESCRIPTION OF SYMBOLS 70 Light source 100 Display system 120 Cylindrical part 120A Cylindrical part 121 Body surface side edge part 122 Body cavity side edge part 123 1st flange part 124 2nd flange part 131 Tip 132 Movable part 140 Holding part 141 Connection part 142 Sealing part S Surgical system

Claims (14)

An imaging device for imaging a body cavity,
An image sensor;
An opening member including a cylindrical portion extending from the body surface to the body cavity;
An optical member that guides incident light incident from the body cavity to the imaging device, wherein at least a part of the optical member is located in an internal space of the cylindrical portion;
An imaging apparatus comprising: a fixing member that fixes at least one of the optical member and the imaging element to the opening member and maintains airtightness of the body cavity.   The imaging device according to claim 1, wherein the at least part of the optical member is located within a thickness range of a body wall in an internal space of the cylindrical portion.   The imaging device according to claim 1, wherein the optical member includes a movable part that is movable in a thickness direction of a body wall in an internal space of the cylindrical part.   The imaging apparatus according to claim 1, further comprising a light source that emits light to the body cavity.   The imaging device according to claim 4, wherein at least a part of the light source is located in an internal space of the cylindrical portion.   The imaging device according to claim 5, wherein the at least part of the light source is movable in a thickness direction of the body wall in an internal space of the cylindrical portion. The opening member further includes a first flange portion extending outward in the circumferential direction from a body surface side end portion of the cylindrical portion,
The imaging device according to claim 1, wherein the fixing member covers at least a part of the cylindrical portion and the first flange portion.   The imaging device according to claim 1, wherein the cylindrical portion has an inner diameter that increases toward the body cavity.   The imaging device according to claim 1, wherein the opening member further includes a second flange portion extending outward in the circumferential direction from a body cavity side end portion of the cylindrical portion. The imaging device according to any one of claims 1 to 9,
And a display device that displays at least a part of an image captured by the imaging device. The display device
A first display unit that displays all or part of the image captured by the imaging device;
The display system according to claim 10, further comprising: a second display unit configured to display a partial region of the region displayed on the first display unit in the image.   The display system according to claim 11, wherein the display device further includes an area specifying unit that specifies the partial area. A display system according to any one of claims 10 to 12,
A surgical system comprising: a treatment tool inserted into the body cavity.   The surgical system according to claim 13, wherein the treatment tool is inserted into the body cavity from a site different from the imaging device.