JP2013090875A - Endoscope and adapter for cleaning endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably clean a fluid conduit, simplify cleaning operation of an endoscope, and prevent a connection error to the fluid conduit.SOLUTION: An electronic endoscope 10 includes: an insertion part 12; an operation part 12; a connector 15 for a light source; a first fluid conduit 54; and a second fluid conduit 60. When an adaptor 75 for cleaning is mounted to a concave part 56 for connection provided in the connector 15 for a light source, a first fluid conduit 54 and the second fluid conduit 60 are communicated. A cleaning solution sent from a connection port 55a provided at one end of the first fluid conduit 54 is sent to the second fluid conduit 60 through the adaptor 75 for cleaning.

Description

  The present invention relates to an endoscope that supplies and sucks fluid to a balloon and an endoscope cleaning adapter.

  Conventionally, balloons that are inflated and deflated have been used in various applications in the medical field. For example, in an ultrasonic endoscope, a balloon that can be expanded and contracted is used to surround an ultrasonic transducer at the distal end of an insertion portion and fill an ultrasonic transmission medium (Patent Document 1).

  On the other hand, in an endoscope for observing the deep digestive tract such as the small intestine and the large intestine, a balloon that can be inflated and contracted is attached to an endoscope insertion portion or an endoscope insertion aid (sliding tube or overtube). The endoscope insertion part and the insertion assisting tool can be fixed in the lumen of the subject by inflating (Patent Document 2). In an endoscope provided with a balloon, a fluid conduit for supplying and sucking fluid such as water and air to the balloon is provided. In addition to the fluid conduit for the balloon, the endoscope is provided with a water jet conduit for injecting liquid into the lumen.

  When cleaning an endoscope, cleaning fluid must be sent to the fluid passage of the endoscope so that it can be cleaned. However, in the case of an endoscope having a plurality of fluid conduits, the cleaning fluid is respectively added to the fluid conduit. Since connecting a syringe or tube for supply is not desirable in terms of cost, the fluid lines can be connected to each other so that the cleaning liquid can be supplied by connecting a syringe or the like only to the end of one fluid line. I want to. For this reason, in the endoscope described in Patent Document 3, when a cap-shaped adapter is attached to the distal end portion of the endoscope, two fluid conduits are connected, and cleaning fluid is supplied to one fluid conduit, The cleaning liquid can be flowed to the other fluid line through the space.

Japanese Patent No. 3017957 Japanese Patent No. 3804806 Japanese Patent Laid-Open No. 11-56766

  However, in the endoscope described in Patent Document 3, since the adapter is attached to the tip when the fluid conduit is washed, there is a possibility that dirt may remain in the vicinity of the tip covered with the adapter. Since it is not preferable that dirt be left in the vicinity of the distal end inserted into the lumen of the subject, the adapter must be removed and the distal end washed after washing the fluid conduit, which is very laborious. Take it. In addition, when a plurality of connection ports are provided in the endoscope so that syringes or the like can be connected to the plurality of fluid conduits, there is a possibility of causing a connection error.

  The present invention has been made in view of the above-described problems. The fluid conduit for supplying and sucking fluid to the balloon is reliably cleaned, the endoscope is easily cleaned, and the fluid conduit is The purpose is to prevent connection mistakes.

  The endoscope of the present invention can be fitted with an overtube provided with a first balloon that can be inflated and deflated, and an overtube-side fluid conduit for supplying and sucking fluid to the first balloon. An insertion portion that is inserted into the lumen together with the overtube, an operation portion that is connected to the proximal end side of the insertion portion, and that is operated, and is provided at a distal end portion of the insertion portion. An imaging unit for imaging, a connector for connecting to an external device, an operation unit side connection port provided in the operation unit for connecting to the overtube side fluid conduit, a surface of the connector, and a predetermined value for each other First and second connector side connection ports provided at spaced positions and connected to a controller for supplying and sucking fluid, and a first fluid pipe for supplying fluid to the first balloon Road, one end The first fluid conduit that communicates with the operation unit side connection port, the other end communicates with the first connector side connection port, the one end communicates with the opening provided at the tip, and the other end A second fluid conduit communicating with the second connector side connection port, wherein the first and second fluid conduits are the first connector side connection port and the second connector side. The cleaning liquid fed from the operation unit side connection port is communicated by the adapter connected to the connection port, and is fed from the first fluid line to the second fluid line through the adapter. It is characterized by.

  The second fluid conduit is preferably a fluid conduit for inflating and deflating a second balloon attached to the distal end of the insertion portion. Or it is preferable that the said 2nd fluid conduit is a conduit for liquid feeding for sending a liquid to the injection hole provided in the said front-end | tip part.

  A plurality of the second fluid conduits, wherein the first fluid conduit and the plurality of second fluid conduits are the first connector side connection port and the plurality of second connectors; It is preferable that the cleaning liquid fed from the first fluid pipe line is fed to the plurality of second fluid pipe lines by communicating with an adapter that connects the side connection port.

  The plurality of second fluid conduits preferably have the same diameter. Alternatively, the plurality of second fluid pipe lines have different pipe line resistances, and the pipe line in the adapter and the throttle means compensate for the difference in the respective pipe line resistances. It is preferable that the cleaning liquid fed from the pipeline flows out from the opening provided at the tip at the same timing.

  The operation part side connection port is preferably a female luer taper. Moreover, it is preferable that any one of the said 1st and 2nd connector side connection port is a female luer taper.

  The plurality of connector-side connection ports are preferably provided at one connection portion that can be connected to an external device or the adapter-side connector.

  The endoscope cleaning adapter of the present invention can be fitted with an overtube provided with a first balloon that can be inflated and deflated, and an insertion portion that is inserted into a lumen, and a proximal end of the insertion portion An operation unit connected to the side, a distal end of the insertion unit, an imaging unit for imaging the inside of the lumen, a connector for connecting to an external device, and a fluid in the first balloon A first fluid conduit for supplying the first connector, one end communicating with an operation portion side connection port provided in the operation portion, and the other end of the first connector side connection port provided on the surface of the connector A first fluid conduit that communicates with the first fluid conduit, one end communicates with an opening provided near the tip, and the other end is spaced from the surface of the connector and the first connector side connection port. An endoscope including a second fluid conduit communicating with the second connector side connection port; In the subsequent endoscope cleaning adapter, the first connector side connection port and the second connector side connection port are connected, and the cleaning liquid is transferred from the first fluid line to the second fluid line. The liquid is fed.

  According to the present invention, the cleaning liquid that is communicated by the adapter connected to the first connector side connection port and the second connector side connection port and fed from the operation unit side connection port is transferred from the first fluid conduit to the adapter. Therefore, the fluid conduit can be reliably cleaned, the endoscope can be easily cleaned, and an erroneous connection to the fluid conduit can be prevented.

It is an external appearance perspective view of an electronic endoscope system. It is a top view which shows the structure of the front-end | tip part of an endoscope. It is explanatory drawing which shows schematically the structure of the fluid pipe line in the endoscope of 1st Embodiment. It is a perspective view which shows the structure of the adapter for connection. It is a perspective view which shows the structure of the adapter for washing | cleaning. It is explanatory drawing which shows schematically the structure of the fluid pipe line when the adapter for washing | cleaning is mounted | worn with the endoscope of 1st Embodiment. It is principal part sectional drawing which shows the state which mounted | wore the endoscope with the adapter for endoscope cleaning of 1st Embodiment. It is explanatory drawing which shows schematically the structure of the fluid pipe line in the endoscope of 2nd Embodiment provided with the water jet pipe line. It is explanatory drawing which shows schematically the structure of the fluid pipe line when the adapter for endoscope washing | cleaning is mounted | worn with the endoscope of 2nd Embodiment. It is a perspective view which shows the adapter for endoscope washing | cleaning of 2nd Embodiment. It is principal part sectional drawing which shows the state which mounted | wore the endoscope with the adapter for endoscope washing | cleaning of 2nd Embodiment.

  In FIG. 1, an endoscope system 2 includes a double-balloon endoscope including an electronic endoscope 10 with a balloon and an overtube 11 with a balloon. The electronic endoscope 10 is connected to an insertion portion 12 to be inserted into a lumen (for example, the large intestine) of a subject and a proximal end side of the insertion portion 12, and an operator such as a doctor or an engineer performs an operation. And an operation unit 13 for the purpose. A universal cord 14 is connected to the operation unit 13, and a light source connector 15 is provided at the tip of the universal cord 14. A cable 16 is branched from the light source connector 15, and a processor connector 17 is provided at the end of the cable 16. The light source connector 15 and the processor connector 17 are detachably connected to the light source device 18 and the processor device 19, respectively.

  The operation unit 13 is provided with an angle knob 20, an air / water supply button 21 for ejecting air and water from the distal end of the insertion unit 12, a suction button 22, and the like. A forceps port 23 through which a treatment instrument such as an electric knife is inserted is provided on the insertion portion 12 side of the operation portion 13.

  The insertion portion 12 is provided at the distal end thereof, and includes a distal end portion 24 in which an imaging element for in-subject imaging is incorporated, a bendable bending portion 25 connected to the proximal end of the distal end portion 24, and a bending portion. 25 and a flexible portion 26 having flexibility, which is connected to the base end of 25. The overtube 11 can be detachably attached to the insertion portion 12. The flexible portion 26 has a length of several meters in order to allow the distal end portion 24 to reach a target position in the body. The bending portion 25 bends in the vertical and horizontal directions in conjunction with the operation of the angle knob 20 of the operation unit 13. Thereby, the front-end | tip part 24 can be orient | assigned to the desired direction in a body.

  In FIG. 2, the distal end surface 30 of the distal end portion 24 is provided with an observation window 31, an illumination window 32, an air / water supply nozzle 33, and a forceps outlet 34. The observation window 31 is disposed at the center on one side of the distal end surface 30. Two illumination windows 32 are arranged at symmetrical positions with respect to the observation window 31.

  In the back of the observation window 31, an objective optical system for capturing an image of the site to be observed in the body, and an imaging element such as a CCD or a CMOS image sensor for capturing an image of the site to be observed are provided. The image pickup device is connected to the processor device 19 through a signal cable that is inserted through the insertion portion 12, the operation portion 13, and the universal cord 14 and extends to the processor connector 17. The image of the observed portion taken in from the observation window 31 is formed on the light receiving surface of the image sensor and converted into an image signal. The processor device 19 performs various kinds of image processing on the image signal from the image sensor received via the signal cable to convert it into a video signal, and displays it as an observation image on the cable-connected monitor 35 (see FIG. 1). .

  Behind the illumination window 32, an exit end of a light guide for guiding illumination light from an irradiation light source of the light source device 18 is disposed. The light guide is inserted into the insertion portion 12, the operation portion 13, and the universal cord 14 and extends to the light source connector 15, and an incident end is disposed in the light source connector 15. Illumination light guided by the light guide is irradiated toward an observation site in the body through the illumination window 32.

  The air / water supply nozzle 33 injects air and water supplied from the air / water supply device built in the light source device 18 toward the observation window 31 according to the operation of the air / water supply button 21. The forceps outlet 34 is connected to a forceps channel (not shown) disposed in the insertion portion 12 and communicates with the forceps port 23. The distal end of the treatment instrument inserted through the forceps opening 23 is exposed from the forceps outlet 34.

  The overtube 11 includes a gripping part 40, a body part 41, and a first balloon 42 that are held by an operator. The holding part 40 is a cylindrical body made of a hard material such as plastic. The main body portion 41 is formed in a substantially cylindrical shape by a flexible material such as polyurethane, and is fitted and fixed to the distal end side of the grip portion 40.

  As shown in FIG. 3, an insertion conduit 44 and an overtube-side fluid conduit 45 are formed in the body portion 41 of the overtube 11 over the axial direction thereof. The insertion conduit 44 is a hole through which the insertion portion 12 of the electronic endoscope 10 is inserted, and has an inner diameter slightly larger than the outer diameter of the insertion portion 12. The inner peripheral surface of the insertion duct 44 is coated with a hydrophilic coating material (lubricating coating material) such as polyvinylpyrrolidone, for example.

  When the overtube 11 is used, a lubricant such as water is supplied to the inner peripheral surface of the insertion conduit 44 (the gap between the insertion portion 12 and the main body portion 41), and friction between the insertion portion 12 and the main body portion 41 is reduced. . The lubricant is injected from the connector 47 shown in FIG. 1 with a syringe or the like (not shown). The connector 47 is connected to a small-diameter tube 48, and the distal end of the tube 48 is connected to the proximal end of the insertion conduit 44. The lubricant injected from the connector 47 is supplied to the inner peripheral surface of the insertion conduit 44 through the tube 48.

  The main body 41 is manufactured, for example, by processing a multi-lumen tube having a constant cross-sectional shape. A taper 49 for constricting the inner diameter is formed at the tip of the main body 41 (see also FIG. 1). By providing the taper 49, when the insertion portion 12 of the electronic endoscope 10 is inserted through the insertion passage 44, the gap between the insertion portion 12 and the distal end of the main body portion 41 becomes narrower, and the distal end of the main body portion 41 is reduced. Leakage of lubricant to the side is prevented. The taper 49 may be provided on the entire circumference of the tip of the main body 41 or may be formed by constricting a part thereof.

  A first balloon 42 is attached to the outer peripheral surface of the distal end portion of the main body 41. The first balloon 42 is formed in a substantially cylindrical shape whose end is narrowed by an elastic material such as rubber, and has a distal end portion and a proximal end portion having a small diameter, and a central bulging portion. The first balloon 42 is put on the outer peripheral surface of the distal end of the main body 41, and is fixed to the main body 41 by, for example, winding a thread around the distal end and the base end and applying an adhesive thereon. .

  The overtube-side fluid conduit 45 is a conduit for supplying and sucking fluid (for example, air) to the first balloon 42, and is provided in the tube wall of the insertion conduit 44. The overtube side fluid conduit 45 is closed at the distal end side of the first balloon 42 at the fixed position. Further, the overtube-side fluid conduit 45 is communicated with a balloon opening 50 formed on the outer peripheral surface of the main body 41. The opening 50 is formed at the mounting position of the first balloon 42, and the first balloon 42 is inflated and deflated by supplying and sucking fluid from the opening 50. A tube 51 is connected to the base end of the overtube-side fluid conduit 45, and a connector 52 is connected to the base end of the tube 51.

  As shown in FIG. 4, the connector 52 is made of, for example, plastic. On the inner surface of the connector 52, an overtube side connection port 52a to which a syringe and an adapter 53 described later can be detachably connected is formed. The overtube side connection port 52a has a female luer taper shape. Thereby, even when the balloon control device 62 breaks down, the first balloon 42 can be inflated and deflated by connecting a syringe or the like to the overtube side connection port 52a. A locked opening 52 b is formed on the outer peripheral surface of the connector 52.

  The electronic endoscope 10 includes a first fluid conduit 54 that is disposed inside the operation unit 13, the cord 14, and the light source connector 15 and that supplies and sucks fluid to and from the first balloon 42. . The first fluid conduit 54 is composed of a flexible tube. A cap 55 is provided near the distal end of the operation unit 13 of the electronic endoscope 10. The base part 55 is made of, for example, plastic or metal, and is formed integrally with the case constituting the operation part 13. The base portion 55 has a substantially cylindrical outer shape, and an operation portion side connection port 55a for connecting to the overtube side fluid conduit 45 is formed at the center position. The operation unit side connection port 55a has a female luer taper shape. In addition, a locked opening 55 b is formed on the outer peripheral surface of the base 55.

  The connection adapter 53 is made of, for example, plastic, and both end portions 53a and 53b are male luer taper shapes and the center is hollow. As a result, both end portions 53a and 53b of the connection adapter 53 are fitted into the overtube side connection port 52a of the connector 52 and the operation unit side connection port 55a of the base portion 55, respectively, and the overtube side fluid conduit 45 is fitted. And the first fluid conduit 54 can be communicated with each other via the connection adapter 53.

  Further, the connection adapter 53 includes locking claws 53 c and 53 d for locking the locked opening 52 b of the connector 52 and the locked opening 55 b of the base 55. When both end portions 53a and 53b of the connection adapter 53 are fitted into the connection port 52a and the connection port 55a, the locking claws 53c and 53d lock the locked opening 52b and the locked opening 55b. Thereby, the connection adapter 53 is prevented from being detached from the connector 52 and the base part 55.

  As shown in FIG. 5, the light source connector 15 is provided with a connecting projection 56 protruding from a flat surface. The connecting convex portion 56 is made of, for example, plastic, and is formed integrally with a case constituting the light source connector 15. The first and second connector side connection ports 57 and 58 are formed in one connection convex portion 56. The first and second connector side connection ports 57 and 58 are arranged at a predetermined distance from each other. The first connector side connection port 57 is formed in a through hole without a taper, and the second connector side connection port 58 is formed in a female luer taper shape. One end of the first fluid conduit 54 communicates with the operation unit side connection port 55 a and the other end communicates with the first connector side connection port 57. The outer peripheral surface of the connecting convex portion 56 is formed in a substantially elliptical shape surrounding the connector side connection ports 57 and 58. Further, a flange portion 56 a that protrudes from the outer peripheral surface is formed on the distal end side of the connecting convex portion 56.

  A second balloon 59 is detachably attached to the distal end portion 24 of the insertion portion 12. Similar to the first balloon 42, the second balloon 59 is formed in a substantially cylindrical shape whose end is squeezed by an elastic material such as rubber, and has a distal end portion and a proximal end portion having a small diameter, and a central bulge. And an exit. The second balloon 59 is inserted into the distal end portion 24 and disposed at a predetermined position of the distal end portion 24, and then, for example, a rubber ring is fitted into the distal end portion and the proximal end portion to thereby insert the distal end portion 24. Fixed to.

  The electronic endoscope 10 is arranged in the insertion portion 12, the operation portion 13, the universal cord 14, and the light source connector 15, and a second fluid conduit for supplying and sucking fluid to the second balloon 59 60 is provided. The second fluid conduit 60 is composed of a flexible tube, and the distal end side thereof is closed at the fixed position of the distal end portion of the second balloon 59. One end of the second fluid conduit 60 communicates with a balloon opening 61 formed on the outer peripheral surface of the distal end portion 24. The opening 61 is formed at the mounting position of the second balloon 59, and the second balloon 59 is inflated and deflated by supplying and sucking fluid from the opening 61. The other end of the second fluid conduit 60 communicates with the second connector side connection port 58. The second fluid line 60 is connected to the balloon controller 62 together with the first fluid line 54.

  The balloon control device 62 separately supplies fluid (for example, air) to each of the balloons 42 and 59 in order to inflate alternately the first balloon 42 on the overtube side and the second balloon 59 on the electronic endoscope 10 side. ) And an apparatus main body 63 provided with a pump, a sequencer, and the like, a hand switch 64 for remote control, and a balloon dedicated monitor 65.

  The balloon control device 62 supplies fluid to the balloons 42 and 59 to inflate them, or controls the fluid pressure to a constant value to hold the balloons 42 and 59 in an inflated state. The balloon control device 62 sucks fluid from the balloons 42 and 59 and contracts them, or controls the fluid pressure to a constant value to hold the balloons 42 and 59 in a contracted state.

  When the balloons 42 and 59 are inflated and deflated, the balloon dedicated monitor 65 displays the pressure values and the inflated and deflated states of the balloons 42 and 59. The pressure values and the inflated / deflated states of the balloons 42 and 59 may be superimposed on the observation image of the electronic endoscope 10 and displayed on the monitor 35 1

  The front panel of the main body 63 of the balloon control device 62 is provided with a power switch, a stop switch operated when an abnormality occurs, a pressure display unit (not shown) for the balloons 42 and 59, and the like. The pressure display unit is a panel that displays the pressure values of the balloons 42 and 59, and an error code is displayed on the pressure display unit when an abnormality such as a breakage of the balloons 42 and 59 occurs.

  Further, fluid supply / suction tubes 68 and 69 to the balloons 42 and 59 are attached to the front panel of the apparatus main body 63. A connection portion between each tube 68 and 69 and the balloon control device 62 is provided with a backflow prevention unit (not shown). The backflow prevention unit is detachably attached to the front panel of the apparatus main body 63. The backflow prevention unit is configured by incorporating a filter for gas-liquid separation inside a hollow disk-like case that is detachably attached to the front panel of the balloon control device 62. When the balloons 42 and 59 are torn, A liquid such as a body fluid is prevented from flowing into the balloon control device 62.

  One connector 70 is provided at the distal ends of the tubes 68 and 69. By connecting the connector 70 to the light source connector 15 of the electronic endoscope 10, the tube 68 and the first fluid conduit 54 of the electronic endoscope 10 are connected, and the tube 69 and the electronic endoscope 10 are connected. The second fluid conduit 60 can be connected.

  On the other hand, the hand switch 64 is provided with various switches. For example, a stop switch similar to the stop switch provided on the apparatus main body 63 side, an endoscope ON / OFF switch that instructs pressurization / decompression of the balloon 42 on the endoscope side, and a second switch on the overtube side An overtube ON / OFF switch for instructing pressurization / depressurization of the balloon 59 is provided, and this hand switch 64 is electrically connected to the apparatus main body 63 via a cord 71.

  As shown in FIG. 5, the connector 70 is made of, for example, plastic, and has a connector main body 72 and fluid pipes 73 and 74. The connector main body 72 has a cylindrical shape in which a distal end side facing the connection convex portion 56 of the light source connector 15 is opened and a proximal end side is closed, and a cross-sectional shape orthogonal to the axial direction connects two semicircles. It has an oval cross section.

  The fluid pipes 73 and 74 are arranged inside the connector main body 72 and along the axial direction, and a part of the distal end side protrudes from the open side of the connector main body 72. The fluid pipes 73 and 74 are positioned at the first and second connector side connection ports 57 and 58 when the outer peripheral surface of the connection convex portion 56 of the light source connector 15 is fitted to the inner peripheral surface of the connector main body 72. It is arranged according to. Tubes 68 and 69 are connected to the base end sides of the fluid pipes 73 and 74.

  One fluid pipe 73 is formed in a cylindrical shape without a taper, and is inserted into the first connector side connection port 57. The other fluid pipe 74 is formed in a male luer taper shape. Thereby, the fluid pipe 74 and the 2nd connector side connection port 58 can be fitted.

  A locking claw 72a for locking the flange portion 56a of the connecting projection 56 is formed on the inner peripheral surface of the connector main body 72, and the light source connector 15 is connected to the inner peripheral surface of the connector main body 72. When the outer peripheral surface of the convex portion 56 is fitted, the locking claw 72 a locks the flange portion 56 a and prevents the connector main body 52 from being detached from the connecting convex portion 56.

  The fitting between the connector main body 72 and the connecting convex portion 56 and the fitting between the male luer tapered fluid pipe 74 and the female luer tapered second connector side connection port 58 cause the tube 68 and the first The fluid conduit 54 can be connected, and the tube 69 and the second fluid conduit 60 can be connected.

  By connecting the connector 70 and the light source connector 15 and connecting the overtube-side fluid conduit 45 and the first fluid conduit 54 via the connection adapter 53, the first and first fluid control devices are connected from the balloon control device 62. The fluid can be supplied and sucked to the second balloons 42 and 59.

  When cleaning the electronic endoscope 10, as shown in FIGS. 6 and 7, the overtube 11, the connection adapter 53, and the connector 70 are removed from the electronic endoscope 10, and the cleaning adapter 75 is removed from the electronic endoscope. Mount on the mirror 10. The cleaning adapter 75 has substantially the same outer shape as the connector 70.

  The cleaning adapter 75 has a cylindrical shape in which a distal end side facing the connection convex portion 56 of the light source connector 15 is opened and a proximal end side is closed, and a cross-sectional shape orthogonal to the axial direction connects two semicircles. It has an oval cross section. A folding space 76 is formed inside the cleaning adapter 75. The folded space 76 is a space that faces the front end surface of the connecting convex portion 56 when the outer peripheral surface of the connecting convex portion 56 of the light source connector 15 is fitted to the inner peripheral surface of the cleaning adapter 75. The first and second connector side connection ports 57 and 58 are arranged in accordance with the positions. Accordingly, the first fluid conduit 54 and the second fluid conduit 60 communicate with each other through the folded space 76 by coupling the cleaning adapter 75 to the connection convex portion 56 of the light source connector 15. .

  A locking claw 75a for locking the flange portion 56a of the connecting convex portion 56 is formed on the inner peripheral surface of the cleaning adapter 75, and the light source connector 15 is connected to the inner peripheral surface of the cleaning adapter 75. When the outer peripheral surface of the connecting convex portion 56 is fitted, the locking claw 75a locks the flange portion 56a to prevent the cleaning adapter 75 from being detached from the connecting convex portion 56.

  When using the electronic endoscope 10, the overtube 11 is attached to the insertion portion 12, and both end portions 53 a and 53 b of the adapter 53 are connected to the overtube side connection port 52 a of the connector 52 and the operation unit side connection port 55 a of the base portion 55. And the connector 70 of the balloon control device 62 is connected to the light source connector 15. The light source connector 15 and the processor connector 17 are connected to the light source device 18 and the processor device 19.

  The surgeon inserts the insertion portion 12 and the overtube 11 of the electronic endoscope 10 alternately into the body by a push method, and operates the hand switch 64 of the balloon control device 62 as necessary to operate the first balloon. 42 is inflated and the second balloon 59 is deflated to fix the overtube 11 in the lumen of the subject, and the insertion portion 12 is further inserted deeper. Alternatively, the first balloon 42 is deflated and the second balloon 59 is inflated to fix the insertion portion 12 in the lumen of the subject, and the overtube 11 is further inserted deeper. In this manner, the insertion portion 12 can be inserted into a deep portion in the lumen to perform observation.

  Next, a method for cleaning the electronic endoscope 10 configured as described above will be described. When cleaning is performed, the overtube 11, the connection adapter 53, the second balloon 59, the connector 70 of the balloon control device 62, and the like are removed from the electronic endoscope 10. The cleaning adapter 75 is coupled to the connection convex portion 56 of the light source connector 15, and the first fluid conduit 54 and the second fluid conduit 60 communicate with each other via the cleaning adapter 75. To do. In this state, a syringe 79 having a distal end formed in a male luer taper shape is connected to the operation portion side connection port 55a of the base portion 55 to feed the cleaning liquid. Note that the method of feeding the cleaning liquid is not limited to this, and a tube of the cleaning device or the like may be connected to the operation unit side connection port 55a so that the cleaning liquid supplied from the cleaning device continues to flow.

  The cleaning liquid sent from the syringe 79 is sent from the first fluid conduit 54 to the second fluid conduit 60 via the cleaning adapter 75. Thereby, both the 1st and 2nd fluid pipe lines 54 and 60 can be washed. Further, since the cleaning adapter 75 for connecting the first and second fluid conduits 54 and 60 is attached to the light source connector 15, a cap-shaped adapter or the like is attached to the distal end portion 24 like a conventional endoscope. The insertion portion 12 including the distal end portion 24 can be easily cleaned.

  In the electronic endoscope 10, the female luer taper-shaped operation part side connection port 55 a and the first connector side connection port 57 are located at positions separated from each other, and the first and second second portions provided on the connector 15. Since the connector side connection ports 57 and 58 have different shapes, connection errors can be prevented. Furthermore, in the electronic endoscope 10, the first and second connector side connection ports 57, 58 are formed in the elliptical connection convex portion 56, and the operation unit side connection port 55a is a cylindrical base portion. 55, the shape in the vicinity of the connection port is clearly different, and connection errors can be further prevented.

  In the first embodiment, the electronic endoscope 10 is provided with a first fluid conduit and a second fluid conduit one by one, and these are communicated by an adapter. The present invention is not limited to this, and a plurality of second fluid lines may be arranged with respect to the first fluid conduit, as in an electronic endoscope 81 constituting the endoscope system 80 of the second embodiment shown in FIG. It is good also as a structure which connects a fluid pipe line with an adapter. In this case, the electronic endoscope 81 includes a water jet pipe (hereinafter referred to as a WJ pipe) 82 as a second fluid pipe in addition to the configuration of the electronic endoscope 10 of the first embodiment. ing.

  The WJ conduit 82 is disposed inside the insertion portion 12, the operation portion 13, and the light source connector 15. A water jet injection hole (hereinafter referred to as a WJ injection hole) 83 is provided at the distal end portion 24 of the electronic endoscope 81. The WJ injection hole 83 is provided at a position exposed from the distal end surface 30 of the distal end portion 24. On the other hand, the light source connector 84 is provided with a connection convex portion 85 in addition to the connection convex portion 56. The connection convex portion 85 is provided with a connector side connection port (second connector side connection port) 86. In addition, a flange portion 85a (see FIG. 10) that protrudes from the outer peripheral surface is formed on the distal end side of the connecting convex portion 85. The connecting projection 56 is coupled to the connector 70 of the balloon control device 62 as in the first embodiment.

  One end of the WJ conduit 82 communicates with the WJ injection hole 83 and the other end communicates with the connector side connection port 86. In the present embodiment, the WJ pipe line 82 has both ends of the connection port disposed in the vicinity of the second fluid pipe line 60, and, similarly to the second fluid pipe line 60, the insertion unit 12, the operation unit 13, and The second fluid conduit 60 and the WJ conduit 82 are disposed in the light source connector 15 and have the same diameter, that is, the same inner diameter. Thereby, the pipe resistance of the fluid passing through the second fluid pipe 60 and the WJ pipe 82 becomes the same. The “same diameter” as used herein includes a substantially same diameter.

  A liquid feeding device 87 is connected to the connector side connection port 86. The liquid feeding device 87 is provided with, for example, a liquid feeding pump, a liquid feeding tank in which a liquid such as water or cleaning liquid is stored, and a foot switch (not shown) for performing a liquid feeding operation. When the liquid feeding pump is operated by operating the foot switch, the liquid is sent out from the liquid feeding tank to the tube 88. A connector 89 is provided at the tip of the tube 88. The connector 89 is fitted to the connecting convex portion 85 and connects the tube 88 and the WJ conduit 82. When the foot switch is operated, a liquid (water, washing liquid, etc.) is supplied from the liquid delivery device 87 via the tube 88, the connector 89, the connector side connection port 86, and the WJ conduit 82, and enters the subject from the WJ injection hole 83. Spray.

  When cleaning the electronic endoscope 81, as shown in FIG. 9, the overtube 11, the adapter 53, the connector 70, and the connector 89 are detached from the electronic endoscope 81, and the cleaning adapter 90 is removed from the electronic endoscope. Attach to 10. As shown in FIGS. 10 and 11, the cleaning adapter 90 includes a connector 91 having an outer shape substantially the same as that of the connector 70, a connector 92 having a shape substantially the same as the connector 89, and the connector 91 and the connector. 92, and a tube 93 connecting between the two.

  The connector 91 has a cylindrical shape in which a distal end side facing the connection convex portion 56 of the light source connector 15 is opened and a proximal end side is closed, and an elliptical shape in which a cross-sectional shape orthogonal to the axial direction connects two semicircles. It has a sectional shape. One end of a tube 93 is connected to the base end side of the connector 91, and a branch path 94 that branches into two from a connection portion with the tube 93 is formed. When the outer peripheral surface of the connecting convex portion 56 of the light source connector 15 is fitted to the inner peripheral surface of the connector 91, the branch path 94 is aligned with the positions of the first and second connector side connection ports 57 and 58. It is arranged. Further, a locking claw 91 a for locking the flange portion 85 a of the connecting convex portion 56 is formed on the inner peripheral surface of the connector 91.

  The connector 92 is connected to the other end of the tube 93 and engages with the connecting convex portion 85. As a result, the connector 91 is coupled to the connection convex portion 56 of the light source connector 15 and the connector 92 is coupled to the connection convex portion 85, so that the first fluid conduit 54 is connected to the first fluid conduit 54 via the cleaning adapter 90. The plurality of second fluid lines 60 and 82 (that is, the second fluid line 60 and the WJ line 82) communicate with each other. A locking claw 92 a that locks the flange portion 56 a of the connecting projection 85 is formed on the inner peripheral surface of the connector 92.

  Next, when cleaning the electronic endoscope 81 configured as described above, the overtube 11, the adapter 53, the second balloon 59, the connector 70 of the balloon control device 62, and the like are removed from the electronic endoscope 81. Then, the first fluid conduit 54, the second fluid conduit 60, and the WJ conduit 82 are in communication with each other via the cleaning adapter 90. In this state, the syringe 79 is connected to the operation unit side connection port 55a of the base unit 55 to feed the cleaning liquid. The cleaning liquid sent from the syringe 79 is sent from the first fluid line 54 to the second fluid line 60 and the WJ line 82 via the cleaning adapter 90. As described above, since the second fluid conduit 60 and the WJ conduit 82 are formed to have the same conduit resistance, the cleaning liquid flows out from the opening 61 and the WJ injection hole 83 at the same timing. The Note that “same” here includes substantially the same. If the pipe resistance of the second fluid pipe 60 and the WJ pipe 82 is different, even if the cleaning liquid flows out from one of the opening 61 and the WJ injection hole 83, the cleaning liquid stops in the middle of the pipe on the other side. Although there is a case where the cleaning of the second fluid pipe 60 and the WJ pipe 82 is insufficient, in the present embodiment, this is not the case, so the cleaning of the second fluid pipe 60 and the WJ pipe 82 is not performed. Can be improved.

  In the second embodiment, the two pipe resistances are made the same by making the pipe length and the inner diameter of the second fluid pipe 60 and the WJ pipe 82 the same. However, the present invention is not limited to this, and the pipe resistance in the cleaning adapter 90 or the throttle means may be supplemented. For example, when the pipeline length of the second fluid pipeline 60 is longer than the pipeline length of the WJ pipeline 82 and the inner diameter is the same, the pipeline resistance of the second fluid pipeline 60 is large, so the first fluid The difference in the pipe resistance is compensated by the length of the branch line 94 and the tube 93 located between the pipe line 54, the second fluid pipe line 60, and the WJ pipe line 82. Alternatively, a narrowing means is provided in the tube 93 or the connector 92 that faces the WJ pipe line 82 to reduce the inner diameter and thereby increase the pipe resistance to compensate for the difference in the pipe resistance. Accordingly, the cleaning liquid flows out from the opening 61 and the WJ injection hole 83 at the same timing as in the second embodiment, and the cleaning performance of the second fluid conduit 60 and the WJ conduit 82 can be improved. Note that “same” here includes substantially the same.

  In the electronic endoscope 10 of the first embodiment, one second fluid conduit 60 for supplying and sucking fluid to the second balloon 59 provided in the insertion portion 12 is provided. The electronic endoscope 81 of the embodiment is configured to include a plurality of second fluid conduits (second fluid conduit 60, WJ conduit 82), but the present invention is not limited to this, and the insertion portion 12 is provided. Instead of providing the second fluid conduit for supplying and sucking the fluid to the balloon provided in, only the WJ conduit 82 may be provided as the second fluid conduit.

In each of the above embodiments, the first connector side connection port 57 is formed in a through hole without a taper, and the second connector side connection port 58 is formed in a female luer taper shape. Any one of the two connector connection ports 57 and 58 may be a female luer taper shape.
Moreover, in each said embodiment, it is set as the structure which a latching claw latches a to-be-latched part and couple | bonds both in connection with an adapter or a connector, and an endoscope. The structure which couple | bonds by may be sufficient.

  In the above-described embodiment, an electronic endoscope for observing an image obtained by imaging the state of a subject using an image sensor has been described as an example. However, the present invention is not limited to this, and an optical image is used. The present invention can also be applied to an endoscope that employs a guide and observes the state of a subject.

2,80 Electronic endoscope system 10,81 Electronic endoscope 11 Over tube 42 First balloon 45 Over tube side fluid conduit 54 First fluid conduit 59 Second balloon 60 Second fluid conduit 57 1st connector side connection port 58,86 2nd connector side connection port 70,90 Adapter for washing | cleaning 81 Water jet pipe line

Claims (10)

An overtube provided with a first balloon that can be inflated and deflated and an overtube-side fluid conduit for supplying and sucking fluid to the first balloon can be attached. An insertion part to be inserted;
An operation unit that is connected to the proximal end side of the insertion unit and is operated;
An imaging unit that is provided at the distal end of the insertion unit and images the inside of the lumen;
A connector for connecting to an external device;
An operation unit side connection port provided in the operation unit, for connecting to the overtube side fluid conduit,
First and second connector side connection ports provided on the surface of the connector and at positions spaced apart from each other and connected to a controller for supplying and sucking fluid;
A first fluid conduit for supplying fluid to the first balloon, wherein one end communicates with the operation unit side connection port and the other end communicates with the first connector side connection port; A fluid line;
One end is in communication with the opening provided in the tip, and the other end is provided with a second fluid conduit communicating with the second connector side connection port,
The first and second fluid conduits communicate with each other through an adapter connected to the first connector side connection port and the second connector side connection port, and the cleaning liquid fed from the operation unit side connection port Is fed from the first fluid line to the second fluid line through the adapter.   The endoscope according to claim 1, wherein the second fluid conduit is a fluid conduit for inflating and deflating a second balloon attached to a distal end portion of the insertion portion.   The endoscope according to claim 1, wherein the second fluid conduit is a fluid supply conduit for sending a liquid to an injection hole provided at the tip. A plurality of the second fluid conduits;
The first fluid conduit and the plurality of second fluid conduits communicate with each other by an adapter that connects the first connector side connection port and the plurality of second connector side connection ports, The endoscope according to claim 1, wherein the cleaning liquid sent from one fluid pipe is sent to the plurality of second fluid pipes.   The endoscope according to claim 4, wherein the plurality of second fluid conduits have the same diameter.   The plurality of second fluid conduits have different conduit resistances, and the first fluid conduits compensate for the difference in the respective conduit resistances by the conduits and the throttle means in the adapter. The endoscope according to claim 4, wherein the cleaning liquid fed from the liquid flows out from an opening provided in the distal end portion at the same timing.   The endoscope according to any one of claims 1 to 6, wherein the operation unit side connection port is a female luer taper.   The endoscope according to any one of claims 1 to 7, wherein any one of the first and second connector side connection ports is a female luer taper.   The endoscope according to any one of claims 1 to 8, wherein the plurality of connector side connection ports are provided at one connection portion connectable to the adapter. An overtube provided with a first balloon that can be inflated and deflated is mountable, an insertion portion that is inserted into a lumen, and an operation portion that is connected to the proximal end side of the insertion portion; An imaging unit provided at the distal end of the insertion unit, for imaging the inside of the lumen, a connector for connecting to an external device, and a first fluid conduit for supplying fluid to the first balloon A first fluid conduit having one end communicating with an operation unit side connection port provided in the operation unit and the other end communicating with a first connector side connection port provided on a surface of the connector And one end communicates with an opening provided near the tip, and the other end communicates with a surface of the connector and a second connector side connection port spaced a predetermined distance from the first connector side connection port. An endoscope cleaning adapter connected to an endoscope having a second fluid conduit Te,
The first connector side connection port and the second connector side connection port are connected to each other, and cleaning liquid is fed from the first fluid line to the second fluid line. Endoscope cleaning adapter.

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