JP2013226224A - Auxiliary water feeding device for endoscope, and auxiliary water feeding tube unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary water feeding device for an endoscope and an auxiliary tube unit without requiring long time for a drying step in the autoclaving process.SOLUTION: An auxiliary water feeding tube unit 10 has a water feeding device side connection means 11 connecting to a water feeding device body 1 and an endoscope side connection means 20 connecting to an endoscope 2 at both ends of a flexible tube 12 respectively. The endoscope side connection means 20 includes an endoscope side connection member 21 and opening/closing members 34, 39, 44 and 47. One end of the endoscope side connection member 21 is narrower than the other parts and constitutes a narrow end 28 to connect to the endoscope. The other end of the endoscope side connection member has inner conduits 23, 26, 28 and 32 connecting to one end of the flexible tube, and a communication passage 24 whose one end connects to a part other than the narrow end of the inner conduits and whose other end opens on the surface. The opening/closing members are relatively movable between a closing position to close an opening of the communication passage 24 and an opening position.

Description

  The present invention relates to an endoscope secondary water supply device that supplies various liquids to the distal end of an insertion portion of an endoscope, and an auxiliary water supply tube unit used in the device.

  Endoscopes that are inserted into a patient's body cavity such as the stomach or intestine to observe or image a target part are provided with a water supply port and an air supply port at the tip of a long insertion portion that is inserted into the body cavity. ing. For example, when the objective lens surface becomes dirty due to bodily fluids or bleeding, and the observation performance of the electronic endoscope deteriorates, the water supply port is used to remove the dirt on the lens surface by spraying water. For example, it is used to restore a field of view by expanding a patient's lumen by air supply to secure a visual field, or by blowing water droplets on the surface of an objective lens.

  In addition to such an air supply device and a water supply device, an endoscope is provided with a secondary water supply device that is used to wash away dirt attached to a body cavity and bleeding due to an endoscopic technique. The auxiliary water supply device supplies water from an auxiliary water supply source provided outside the endoscope to an auxiliary water supply port formed at the distal end of the insertion portion of the endoscope. That is, the auxiliary water supply source (tank) is connected to a water supply device main body having an auxiliary water supply pump, and the water supply device main body and the endoscope are connected via the auxiliary water supply tube unit. When a switch (generally a foot switch) provided in the water feeding device main body is turned on, the sub water feeding pump is activated, and water from the sub water feeding source is supplied to the sub water feeding port of the endoscope through the sub water feeding tube unit.

JP 2011-92309 A

  The auxiliary water supply tube unit has a luer taper (mesh luer) for connection to the water supply device main body fixed to the end of the flexible tube at the water supply device main body side, and the endoscope is connected to the end of the endoscope. A hard (metal) tip connecting member for connection with the water is fixed, and after use is completed, it is removed from the water feeder main body and the endoscope and autoclaved (sterilized). In this autoclave process, the entire sub-water feeding tube unit is immersed in the liquid, so that the liquid enters the voids of the flexible tube, the female luer, and the tip connecting member. However, the diameter of the end connecting member on the side of the end of the pipe connected to the endoscope corresponds to the diameter of the endoscope side pipe, and thus is thinner than the pipes of the flexible tube and the female luer. For this reason, it is difficult for the liquid to be discharged from the inside in the drying step in the autoclave process, which causes a long time for the entire processing time. In particular, when the installation distance between the water feeding device main body and the endoscope is large (the flexible tube is long), this problem becomes significant.

  An object of the present invention is to provide an auxiliary water supply device for an endoscope that does not require a long time for a drying process during autoclave processing and an auxiliary water supply tube unit used for the auxiliary water supply device based on the above problem awareness. To do.

  An endoscope secondary water feeding device according to the present invention connects an endoscope having a secondary water feeding port at a distal end of an insertion portion and a water feeding device main body having a secondary water feeding pump via a secondary water feeding tube unit, and In the sub-water feeding device of the endoscope that feeds water to the sub-water feeding port via a pump, the sub-water feeding tube unit is connected to the water feeding device main body at both ends of the flexible tube, respectively. Endoscope-side connecting means for connecting to the endoscope, and the endoscope-side connecting means constitutes a small-diameter end that connects to the endoscope with one end having a smaller diameter than the other parts. An internal pipe having the other end connected to one end of the flexible tube, and a communication path having one end connected to a portion other than the small diameter end of the internal pipe and the other end opened on the surface. Endoscope-side connection member and blockage that blocks the opening of the communication path Between an open position for opening the location and opening a relatively movable, it is characterized by and a closing member which is supported on the surface of the endoscope side connection member.

  The endoscope side connecting means urges the opening / closing member to move toward the open position, and the opening / closing member moves to the closed position when the endoscope side connecting means is connected to the endoscope. There may be provided an urging means for allowing movement.

  The opening / closing member may be slidable with respect to the endoscope-side connecting member along a linearly extending central axis of the small diameter end portion.

  A connection port that communicates with the auxiliary water supply port via a conduit formed inside the endoscope is provided on the surface of the endoscope so that the endoscope side connection means is connected to the connection port. You may have the fitting recessed part which the edge part on the opposite side to a pipe line fits and connects with the said small diameter edge part.

  An auxiliary water supply tube unit of the present invention is an auxiliary water supply tube unit that connects an endoscope having an auxiliary water supply port at the distal end of an insertion portion and a water supply device main body having an auxiliary water supply pump, at both ends of a flexible tube. Each has a water supply device side connection means for connecting to the water supply device main body and an endoscope side connection means for connecting to the endoscope, and the endoscope side connection means has one end compared to other portions. A small-diameter end connected to the endoscope with a small diameter, the other end connected to one end of the flexible tube, and one end of the internal conduit other than the small-diameter end An endoscope-side connecting member having a communication path connected to the other end of the communication path, and a movable position between the closed position for closing the opening of the communication path and an open position for opening the opening. Opening / closing section supported on the surface of the endoscope side connecting member It is characterized in that it comprises, when.

  The endoscope side connecting means urges the opening / closing member to move toward the open position, and the opening / closing member moves to the closed position when the endoscope side connecting means is connected to the endoscope. There may be provided an urging means for allowing movement.

  The opening / closing member may be slidable with respect to the endoscope-side connecting member along a linearly extending central axis of the small diameter end portion.

  A connection port that communicates with the auxiliary water supply port via a conduit formed inside the endoscope is provided on the surface of the endoscope so that the endoscope side connection means is connected to the connection port. You may have the fitting recessed part which the edge part on the opposite side to a pipe line fits and connects with the said small diameter edge part.

  An endoscope side connection member having an internal pipe line and a communication path, the endoscope side connection means of the auxiliary water supply device and the auxiliary water supply tube unit of the present invention fixed to one end of the flexible tube, and a communication path An opening / closing member supported on the surface of the endoscope side connecting member so as to be relatively movable between a closed position for closing the opening and an open position for opening the opening. For this reason, the auxiliary water supply tube unit can be autoclaved and dried with the open / close member in the open position (opening of the communication passage communicating with the internal conduit), so the endoscope side connection It is possible to dry the small-diameter end portion (and the entire internal conduit) having the smallest diameter among the internal conduits of the member in a short time.

1 is an overall view of a sub-water supply device according to an embodiment of the present invention. It is a figure which shows a cart and a part of sub-water supply apparatus mounted on the cart. It is a perspective view of the endoscope side connection member in which the opening and closing member is located at the closed position. It is a perspective view of the endoscope side connection member in which an opening / closing member is located in an open position. It is a longitudinal side view of the connection port of the endoscope and the auxiliary water supply tube unit. It is a vertical side view of the connection port of the endoscope and the auxiliary water supply tube unit of the first modification. It is a longitudinal side view of the connection port of the endoscope of the second modified example and the auxiliary water supply tube unit. It is a vertical side view of the connection port of the endoscope and the auxiliary water supply tube unit of the third modification. It is a vertical side view of the connection port of the endoscope of the 4th modification, and an auxiliary water supply tube unit. It is a figure which shows a part of auxiliary water feeder mounted on the plane part of a 5th modification. It is a vertical side view of the auxiliary water supply tube unit of the 5th modification.

As shown in FIG. 1, the secondary water feeding device 100 of the endoscope is connected to the endoscope 2, the tank (sub-water feeding source) 3, the water feeding device main body 1 having the secondary water feeding pump 6, and the water feeding device main body 1 and the tank 3. And the auxiliary water supply tube unit 10 for connecting the water supply device main body 1 and the connector 2e of the endoscope 2 to each other.
The endoscope 2 is provided at the distal end of the operation portion 2b, a flexible insertion portion 2a extending from the operation portion 2b, a flexible universal tube 2c extending from the operation portion 2b to the opposite side of the insertion portion 2a, and the universal tube 2c. A connector portion 2e, and a connector port 2e is provided with a connection port 2f.
As shown in FIG. 2, a cart 60 with wheels is placed on the floor. The cart 60 includes a plurality of shelf plates arranged one above the other, and a processor 70 including a light source and an image processing device is mounted on the upper shelf plate. The connector part 2e of the endoscope 2 is connected to the processor 70, light emitted from a light source inside the processor 70 is supplied to the endoscope 2, and image data captured by the imaging device of the endoscope 2 is processed by the processor. Image processing is performed by an image processing apparatus inside 70.
A water feeder main body 1 and a tank 3 are placed on the bottom shelf of the cart 60. A foot switch 4 placed on the floor is connected to the water feeder main body 1.

  The auxiliary water supply tube unit 10 has a connection means 11 (water supply apparatus side connection means) with a male luer (connection means) 8 on the water supply apparatus main body 1 side at one end, and a connector part 2e of the endoscope 2 at the other end. It has a connection means 20 with the side connection port 2f. The present embodiment is intended for the sub-water supply tube unit 10 and particularly for the structure of the connection means 20 (endoscope side connection means).

  The auxiliary water supply tube unit 10 has a connecting means 11 detachably provided at one end of a flexible (bendable) flexible tube 12 made of a synthetic resin material, and a connecting means 20 provided detachably at the other end. . The connecting means 11 comprises a known luer tapered female luer 11F, and the water feeder main body 1 is provided with a male luer 8 for attaching and detaching the female luer 11F, as shown in FIGS. The female luer 11F has an insertion cylindrical part 11a to the flexible tube 12, a flange 11b for restricting an insertion end of the insertion cylindrical part 11a to the flexible tube 12, an insertion part 11c to the male luer 8, and a screw function. It is a well-known thing which has the screw rib 11d which has. The male luer 8 includes a cylindrical portion 8a into which the insertion portion 11c of the female luer 11F is inserted, a luer screw 8b into which the screw rib 11d is screwed, and an insertion cylindrical portion that is connected to a tube connected to the sub-feed pump 6. 8c (FIG. 5). The connecting means 8 and 11 may be constituted by connecting means other than the luer taper.

The connection means 20 includes an endoscope side connection member 21 that is detachably inserted and fixed to the flexible tube 12, and an opening / closing member 34 that is slidably attached to the endoscope side connection member 21. ing.
The endoscope-side connecting member 21 is a member in which a metal base member 22, a support cylinder member 25, a connecting end portion constituting member 27, and a tube connecting member 31 are combined and integrated with each other. Since O-rings are provided on the connection surfaces of the base member 22, the support cylinder member 25, the connecting end portion constituting member 27, and the tube connecting member 31, the watertightness between the connecting members is maintained.
The base member 22 having a substantially cylindrical shape has an internal conduit 23 extending linearly along the central axis CL, and four communication passages 24 extending radially from the center of the internal conduit 23 toward the surface of the base member 22. And have.
A support cylinder member 25, which is a cylindrical member concentric with the base member 22, is connected to one end of the base member 22, and a support cylinder member is connected to an end of the internal conduit 26 of the support cylinder member 25. One end of a connecting end component member 27, which is a cylindrical member concentric with 25, is connected. An internal pipe line 28 (small-diameter end part) that extends linearly along the central axis CL (concentric with the internal pipe lines 23 and 26) and communicates is formed inside the connection end component member 27. . A snap ring 29 that is elastically deformable in the radial direction is attached to the annular recess formed in the outer peripheral surface of the connection end component member 27.
The axis of the tube connecting member 31 connected to the other end of the base member 22 is orthogonal to the central axis CL. Inside the tube connection member 31, an internal conduit 32 that penetrates along the axis of the tube connection member 31 is formed. As shown in the drawing, the end of the flexible tube 12 is detachably connected to the tube connecting member 31.
When the base side member 22, the support cylinder member 25, the connecting end portion constituting member 27, and the tube connecting member 31 are integrated to form the endoscope side connecting member 21, an internal conduit 23, an internal conduit 26, an internal conduit 28 and the internal pipe line 32 communicate with each other to form an L-shaped internal pipe line. As shown in the figure, the internal conduit 32 has a smaller diameter than the internal conduit 23, and the internal conduit 28 has a smaller diameter than the internal conduit 23, the internal conduit 26, and the internal conduit 32.

Examples of specific dimensions of the above elements are as follows.
Length of flexible tube 12; 1.3m
The outer diameter of the flexible tube 12: 7 mmφ
Inner diameter of flexible tube 12; 3 mmφ
Inner diameter of internal pipe line 23; 4.2 mmφ
Inner diameter of internal pipe 26; 2.5mmφ
Inner diameter of inner pipe 28; 1.2mmφ
Inner diameter of internal pipe line 32; 2.5 mmφ
Inner diameter of insertion cylindrical portion 11a of female luer 11F; 2.5mmφ
Of course, these numbers are merely examples and are not intended to limit the scope of the present invention.

  The opening / closing member 34 supported (mounted) on the outer peripheral surfaces of the base member 22 and the support cylinder member 25 so as to be slidable in the direction of the central axis CL is a cylindrical member centered on the central axis CL. Since a plurality of O-rings are provided between the outer peripheral surfaces of the base member 22 and the support cylinder member 25 and the opening / closing member 34, the watertightness of both is maintained. 4 and 5 (see the upper half of the opening / closing member 34 positioned above the central axis CL) with respect to the base member 22 and the support cylinder member 25, and the opening / closing member 34, It can slide along the central axis CL between the closed position shown in FIG. 5 (see the lower half of the opening / closing member 34 positioned below the central axis CL). When the opening / closing member 34 is located at the open position, the end opening of the communication path 24 is opened, and when the opening / closing member 34 is located at the closing position, the end opening of the communication path 24 is airtight by the inner surface of the opening / closing member 34. It is blocked by (watertight state).

In the above sub-water feeding tube unit 10, the connecting means 11 of the flexible tube 12 is fitted to the male luer 8 of the water feeding device main body 1, and the distal end portion of the connecting end portion constituting member 27 of the endoscope side connecting member 21 of the connecting means 20 is used. It connects and uses with respect to the connection port 2f of the connector part 2e. When connecting the connection means 20 to the connection port 2f, the distal end portion of the connection end component member 27 is inserted into the connection port 2f with the opening / closing member 34 positioned at the open position. Then, the connection port 2f and the connection end component member 27 are connected in a watertight state, and the snap ring 29 engages with the retaining rib 2g provided at the connection port 2f. Therefore, the connection port 2f of the connection end component member 27 is connected. Is prevented from falling off (see FIG. 5). Further, as shown in FIG. 5, the end face of the connection port 2 f presses the opening / closing member 34 along the central axis CL and slides it to the closing position, so that the end opening of the communication path 24 is blocked by the inner surface of the opening / closing member 34. It is.
As shown in FIG. 2, since the connector part 2e connected to the processor 70 is located above the water feeder main body 1, the flexible tube 12 faces the connector part 2e side from the water feeder main body 1 (sub-water feed pump 6). The connecting means 20 provided at the end of the flexible tube 12 is connected to a connection port 2f protruding in a direction (horizontal direction) substantially orthogonal to the extending direction (substantially vertical direction) of the flexible tube 12. To do. However, since the connecting means 20 (and its internal pipe line) is substantially L-shaped, no excessive stress is applied to the flexible tube 12 when the connecting means 20 is connected to the connection port 2f.
In this way, when the practitioner steps on the foot switch 4 with the auxiliary water supply tube unit 10 connected to the endoscope 2 and the auxiliary water supply pump 6, an ON signal from the foot switch 4 is sent to the depression detection unit 5a. The sub-water pump 6 is driven by the control of the sub-water pump controller 5b, the water (liquid) stored in the tank 3 is sucked up through the suction tube 7, and the sucked-up water is sub-water-feed tube unit 10. Through the water supply channel (pipe) provided in the connector portion 2e, the universal tube 2c, the operation portion 2b, and the insertion portion 2a of the endoscope 2, and the distal end of the insertion portion 2a. It is ejected from a 2d auxiliary water supply port (not shown).

  On the other hand, after the use as the auxiliary water feeding device is finished, the connection means 20 is removed from the connection port 2f, the connection means 11 is removed from the male luer 8 (see FIG. 5), and the opening / closing member 34 is returned to the open position. The auxiliary water supply tube unit 10 is autoclaved. That is, it is immersed in a sterilizing solution.

  When the sterilization process in the sterilizing liquid is completed, the entire sub-water feeding tube unit 10 is taken out from the sterilizing liquid, and the process proceeds to the drying process while the opening / closing member 34 is located at the open position. As described above, since the inner pipe 28 of the connecting end portion constituting member 27 has the smallest diameter among the inner pipes of the endoscope side connecting member 21, the inner pipe 28 is a sterilizing liquid in the inner pipe. Is most likely to remain. However, when the opening / closing member 34 is positioned at the open position, not only the opening end portion of the inner conduit 28 opposite to the inner conduit 23 but also the end opening of the communication passage 24 is opened, so that the flexible tube 12 is opened. It is possible to dry the internal pipe line 28 (and the internal pipe lines 23, 26, 32) easily (in a short time) even when the length of the pipe is long.

FIG. 6 shows a connecting means 35 according to a first modification of the present invention.
A cylindrical compression coil spring 36 (biasing means) centered on the central axis CL is disposed in an annular recess formed on the outer peripheral surface of the base member 22 of the connecting means 35. The compression coil spring 36 is in a contracted state from the free state, one end of which is locked to the base member 22, and the other end is locked to an annular flange 34 a protruding from the inner peripheral surface of the opening / closing member 34. Therefore, when no external force other than the compression coil spring 36 is exerted on the opening / closing member 34, the opening / closing member 34 is held in the open position by the urging force of the compression coil spring 36.
When the distal end portion of the connecting end portion constituting member 27 of the connecting means 35 is connected to the connecting port 2f protruding from the connector portion 2e of the endoscope 2, the end surface of the connecting port 2f resists the urging force of the compression coil spring 36. Since the opening / closing member 34 is slid to the closing position, the end opening of the communication path 24 is blocked by the inner surface of the opening / closing member 34.
When the connection means 35 is removed from the connection port 2f after the use as the auxiliary water feeding device is completed, the opening / closing member 34 is automatically returned to the open position by the urging force of the compression coil spring 36. Therefore, it is possible to prevent the autoclave process and the drying process from being performed while the opening / closing member 34 is in the closed position (the end opening of the communication path 24 is in the closed state).

FIG. 7 shows a connecting means 38 according to a second modification of the present invention.
A fitting recess 40 centered on the central axis CL is formed on the distal end face of the opening / closing member 39 made of metal of the connecting means 38. The inner diameter of the fitting recess 40 is substantially the same as the outer diameter of the connection port 2f (slightly larger than the outer diameter of the connection port 2f).
When the distal end portion of the connection end component member 27 of the connection means 38 is inserted into the connection port 2f projecting from the connector portion 2e of the endoscope 2, the distal end portion of the connection port 2f is fitted into the fitting recess 40, Since the outer peripheral surface of the tip portion contacts the inner peripheral surface of the fitting recess 40, the connection port 2f and the opening / closing member 39 (connection means 38) are held in a coaxial state. Therefore, when the connection means 38 is further moved to the connection port 2f side and the open / close member 34 is slid to the closed position by the connection port 2f, the open / close member 39 rattles with respect to the connection port 2f (with respect to the center axis CL). Therefore, the connection work between the connection port 2f and the connection means 38 (work for sliding the open / close member 34 to the closed position) can be performed smoothly.

FIG. 8 shows a connecting means 42 according to a third modification of the present invention.
Although the base member 22 of the connection means 42 (the shapes of the base member 22 and the support cylinder member 25 are slightly different from those of the above-described embodiment and the modified example, the same reference numerals are attached) does not include the communication path 24. On the end surface of the member 22 on the side opposite to the connection end portion constituting member 27, a communication passage 43 communicating with the end portion on the side opposite to the connection end portion constituting member 27 of the internal conduit 23 is formed.
Further, an opening / closing member 44 made of metal that is slidable along the end surface is mounted on the end surface of the base member 22 opposite to the connection end portion constituting member 27. The opening / closing member 44 can slide relative to the base member 22 between an open position indicated by a virtual line in FIG. 8 and a closed position indicated by a solid line. When the opening / closing member 44 is located at the open position, the end opening of the communication passage 43 is opened, and when the opening / closing member 44 is located at the closing position, the end opening of the communication passage 43 is airtight by the inner surface of the opening / closing member 44 ( Blocked in a watertight state). Therefore, this modification can also exhibit the same effects as the above embodiment.

FIG. 9 shows a connecting means 46 according to a fourth modification of the present invention.
A portion corresponding to the communication path 24 on the outer peripheral surface of the base member 22 of the connection means 46 (the shape of the support cylinder member 25 is slightly different from that of the above-described embodiment and modification, but is given the same reference numeral) An opening / closing member 47, which is a cylindrical body centered on CL, is mounted so as to be relatively rotatable about the central axis CL. The metal opening / closing member 47 has four escape holes 48 formed as through holes. The open / close member 47 has an open position (position in FIG. 9) where each escape hole 48 faces the corresponding communication path 24 with respect to the base member 22, and a closed position where each escape hole 48 does not face each communication path 24. It is possible to rotate between. When the opening / closing member 47 is located at the open position, the end opening of the communication passage 24 communicates with the outer peripheral space of the opening / closing member 47 via the relief hole 48, and when the opening / closing member 47 is located at the closing position, The end opening is closed in an airtight state (watertight state) by the inner peripheral surface of the opening / closing member 47. Therefore, this modification can also exhibit the same effects as the above embodiment.

10 and 11 show a fifth modification of the present invention.
The base member 51 of the connection means 50 of this modification is a cylindrical member centering on the central axis CL corresponding to the base member 22 and the tube connection member 31 of the connection means 20. A flange 52 is formed at an intermediate portion of the base member 51. A tube connecting portion 53 corresponding to the tube connecting member 31 protrudes from the end of the base member 51 opposite to the connecting end constituting member 27, and the end face of the flexible tube 12 connected to the tube connecting portion 53 is formed. It is in contact with the flange 52. The base member 51 is formed with an internal conduit 54 penetrating the entire base member 51 along the central axis CL. The four intermediate passages 24 and the outer peripheral space of the base member 51 are connected to the four communication passages 24. Are communicating. Also in this modification, the internal pipeline 28 has a smaller diameter than the internal pipeline 54 (and the internal pipeline 26).
As shown in FIG. 10, the connecting means 50 of this modified example mounts the water feeding device main body 1, the tank 3, and the processor 70 on one plane portion (one shelf plate of the cart 60, the upper surface of the mounting table, etc.). It is suitable for use when placed. In this case, as shown in FIG. 10, the connecting port 2f of the connector portion 2e and the vertical position of the auxiliary water pump 6 are substantially the same, so the flexible tube 12 connecting the connecting port 2f and the auxiliary water pump 6 is substantially horizontal. Will extend in the direction. Therefore, when the flexible tube 12 is connected to the connection port 2f using the connection means 50 extending linearly along the central axis CL, the connection means 50 and the connection port 2f are not subjected to excessive stress on the flexible tube 12. Can be connected.
Further, since it is extremely difficult to form a through-hole having an L-shaped cross section in a single metal member, the base member 22 and the tube connecting member 31 are separate members in the connecting means 20, but the internal conduit 54 of the present modification example Has a merit that the base member 51, which is a member corresponding to the base member 22 and the tube connecting member 31, can be configured by one metal member.

In the above embodiment and each modified example, the secondary water supply tube unit 10 is connected to the connector 2e of the endoscope 2, but instead of the connection portion ( A part corresponding to the connection port 2f) may be provided.
The opening / closing member of the endoscope side connecting means is not limited to the above type (opening / closing member 34, opening / closing member 39, opening / closing member 44, opening / closing member 47), and is moved relative to the surface of the endoscope side connecting member. As long as it opens and closes the end opening of the communication path, another type may be used.
Further, the number of the communication passages 24 and the escape holes 48 may be one or a plurality other than four.
Further, a biasing means of a type different from the compression coil spring 36 may be used for the connecting means 35 and 38.

DESCRIPTION OF SYMBOLS 1 Water supply apparatus main body 2 Endoscope 2a Insertion part 2b Operation part 2c Universal tube 2d Tip 2e Connector part 2f Connection port 2g Stopping rib 3 Tank (sub-water supply source)
4 Foot Switch 5a Depression Detection Unit 5b Sub-Water Supply Pump Control Unit 6 Sub-Water Supply Pump 7 Suction Tube 8 Male Luer 10 Sub-Water Supply Tube Unit 11 Connection Means (Water Supply Device Side Connection Means)
11a Insert cylindrical part 11F Female lure 12 Flexible tube 20 Connection means (endoscope side connection means)
21 Endoscope-side connection member 22 Base member 23 Internal pipe 24 Communication path 25 Support cylinder member 26 Internal pipe 27 Connection end component 28 Internal pipe (small diameter end)
29 snap ring 31 tube connecting member 32 internal conduit 34 opening / closing member 34a annular flange 35 connecting means (endoscope side connecting means)
36 Compression coil spring (biasing means)
38 Connection means (endoscope side connection means)
39 Opening / closing member 40 Fitting recess 42 Connection means (endoscope side connection means)
43 Communication path 44 Opening and closing member 46 Connection means (endoscope side connection means)
47 Opening / closing member 48 Relief hole 50 Connection means (endoscope side connection means)
51 Base member 52 Flange 53 Tube connection portion 54 Internal conduit 60 Cart 70 Processor (light source and image processing device)
CL center axis

Claims (8)

An endoscope that has a secondary water supply port at the distal end of the insertion portion and a water supply device main body that has a secondary water supply pump are connected via a secondary water supply tube unit, and water is supplied to the secondary water supply port via the secondary water pump. In the auxiliary water supply device of the endoscope,
The auxiliary water supply tube unit has a water supply device side connection means connected to the water supply device main body and an endoscope side connection means connected to the endoscope at both ends of the flexible tube,
The endoscope side connecting means is
One end portion has a smaller diameter than the other portions and constitutes a small-diameter end portion connected to the endoscope, and the other end portion is connected to one end of the flexible tube, and one end is the inner conduit An endoscope-side connecting member having a communication path connected to a portion other than the small-diameter end portion and having the other end opened on the surface;
An opening / closing member supported on the surface of the endoscope-side connecting member so as to be relatively movable between a closing position for closing the opening of the communication path and an opening position for opening the opening;
An auxiliary water supply device for an endoscope. The auxiliary water supply device for an endoscope according to claim 1,
The endoscope side connecting means urges the opening / closing member to move toward the open position, and the opening / closing member moves to the closed position when the endoscope side connecting means is connected to the endoscope. An auxiliary water supply device for an endoscope, comprising urging means for allowing movement. The auxiliary water supply device for an endoscope according to claim 1 or 2,
An auxiliary water feeding device for an endoscope, wherein the opening / closing member is slidable with respect to the endoscope-side connecting member along a linearly extending central axis of the small-diameter end portion. The auxiliary water supply device for an endoscope according to any one of claims 1 to 3,
On the surface of the endoscope, a connection port that communicates with the auxiliary water supply port via a conduit formed inside the endoscope is projected,
The endoscope secondary water feeding device, wherein the endoscope side connection means has a fitting recess in which an end portion of the connection port opposite to the pipe line is fitted and communicated with the small diameter end portion. An auxiliary water supply tube unit for connecting an endoscope having an auxiliary water supply port at the distal end of the insertion portion and a water supply device main body having an auxiliary water supply pump,
At both ends of the flexible tube, there are water supply device side connection means for connecting to the water supply device main body, and endoscope side connection means for connecting to the endoscope,
The endoscope side connecting means is
One end portion has a smaller diameter than the other portions and constitutes a small-diameter end portion connected to the endoscope, and the other end portion is connected to one end of the flexible tube, and one end is the inner conduit An endoscope-side connecting member having a communication path connected to a portion other than the small-diameter end portion and having the other end opened on the surface;
An opening / closing member supported on the surface of the endoscope-side connecting member so as to be relatively movable between a closing position for closing the opening of the communication path and an opening position for opening the opening;
An auxiliary water supply tube unit comprising: The auxiliary water supply tube unit according to claim 5,
The endoscope side connecting means urges the opening / closing member to move toward the open position, and the opening / closing member moves to the closed position when the endoscope side connecting means is connected to the endoscope. A sub-water supply tube unit having an urging means for allowing movement. The auxiliary water supply tube unit according to claim 5 or 6,
The auxiliary water supply tube unit in which the opening / closing member is slidable with respect to the endoscope side connection member along a linearly extending central axis of the small diameter end portion. The auxiliary water supply tube unit according to any one of claims 5 to 7,
On the surface of the endoscope, a connection port that communicates with the auxiliary water supply port via a conduit formed inside the endoscope is projected,
The secondary water supply tube unit, wherein the endoscope-side connection means has a fitting recess that is fitted to an end of the connection port opposite to the pipe line and communicates with the small-diameter end.

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