CN210810938U - Waterproof cap for ureteroscope - Google Patents

Abstract

The utility model provides a waterproof cap for ureteroscope for connect the operation interface on the ureteroscope, including connecting piece, valve ring and closure piece, connecting piece, valve ring and closure piece form the passageway that can supply operating instrument to pass after connecting gradually, and the valve ring is including solid fixed ring, elasticity water sealing pad and two elasticity valves, and the topside of two elasticity valves is all fixed in gu fixed ring is last and enclose and close and form ring circular structure, the base of two elasticity valves can be along with pressure variation in the connecting piece is laminated each other and is sealed passageway or alternate segregation is opened the passageway. The utility model provides a waterproof cap and the last operation interface connection of ureteroscope can supply operating instrument to pass and stretch into the ureteroscope through the passageway in the waterproof cap and operate the use, has set up the valve ring in waterproof cap, through two elasticity valves on the valve ring, can play the effect of opening and closing this passageway.

Description

Waterproof cap for ureteroscope

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a waterproof cap for ureteroscope is related to.

Background

With the continuous development of the technology, the existing medical level is also continuously promoted. Ureteroscopy is the surgical equipment commonly used in urology surgery among them. The ureteroscope is a slender medical instrument which consists of a light guide fiber, a working cavity and various working accessories. Ureteroscopy is to enter the ureter through the urethra, bladder, ureter orifice through a slender endoscope, and the pathological changes in the ureter can be clearly observed in the endoscope and the operation can be performed on the pathological changes by using corresponding tools. Therefore, the ureteroscope in the prior art comprises an interface for inserting an endoscope and an infusion interface for infusing physiological saline for ensuring a clear view of the endoscope, and the ureteroscope also comprises an operation interface for accessing different working accessories. Therefore, during the operation of the ureteroscope, both the physiological saline injected from the perfusion interface and the liquid infiltrated into the ureteroscope may flow back and overflow from the operation interface, causing pollution to other articles in the operation room and causing certain troubles to the operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve current ureteroscope's operation interface and have liquid reflux to cause the pollution of other article in the operating room and cause the shortcoming of operation puzzlement, provide a waterproof cap for ureteroscope.

The utility model provides a technical scheme that its technical problem adopted is: a waterproof cap for a ureteroscope is used for connecting an operation interface on the ureteroscope and comprises a connecting piece connected with the operation interface, a valve ring arranged in the connecting piece and a closing piece for fixing the valve ring in the connecting piece, the connecting piece, the valve ring and the closing piece are sequentially connected to form a channel for an operating instrument to pass through, the valve ring comprises a fixing ring, an elastic water seal cushion arranged on the fixing ring and two elastic valves positioned below the elastic water seal cushion, the elastic water seal cushion is provided with a through hole for an operating instrument to pass through, the top edges of the elastic valves are fixed on the fixing ring and are enclosed to form a circular ring-shaped structure, and the bottom edges of the elastic valves can be mutually attached to a closed channel or mutually separated to open a channel along with the pressure change in the connecting piece.

Furthermore, the connecting piece comprises a first barrel body, the first barrel body is provided with a first connecting end and a second connecting end, the first connecting end is used for being connected with the operation interface and the second connecting end is used for being connected with the closing piece, the first step surface used for bearing the valve ring is arranged on one side, close to the second connecting end, of the inner wall of the first barrel body, the fixing ring of the valve ring is pressed on the first step surface through the fixed connection between the closing piece and the second connecting end, and the two elastic valves of the valve ring are freely arranged on one side, far away from the closing piece, of the first barrel body of the connecting piece.

Furthermore, a pair of guide grooves which are oppositely arranged along the axial direction of the first cylinder body are also formed in the inner wall of the first cylinder body of the connecting piece, and two side edges of the elastic valve of each valve ring are respectively inserted into the guide grooves.

Furthermore, the first barrel of connecting piece is being close to be equipped with first internal thread on the inner wall of first step face one side, the closing member with the tip that the connecting piece is connected is equipped with first external screw thread, the connecting piece with through first internal thread between the closing member with mutually support fixed connection between the first external screw thread.

Furthermore, a second step surface used for being abutted against the operation interface is further arranged on one side of the first connecting end of the outer wall of the first cylinder of the connecting piece.

Specifically, a second external thread is arranged on the outer wall, close to the second step surface, of the first cylinder of the connecting piece, and the connecting piece is fixedly connected with the operation interface through a thread.

In particular, the closure comprises a second cylinder having a third, oppositely disposed, connecting end for connecting the connecting element and a socket into which the operating device can be inserted.

Specifically, the outer wall of the second cylinder is provided with a third step surface abutted to the second connecting end of the connecting piece on one side of the third connecting end, and the first external thread is arranged on the outer wall of the third step surface.

Further, the connecting piece and the closing piece are both made of metal materials.

Furthermore, the valve ring is made of medical soft silica gel.

The utility model provides a waterproof cap for ureteroscope's beneficial effect lies in: the utility model provides a waterproof cap and the last operation interface connection of ureteroscope, passageway through in the waterproof cap can supply operating device to pass and stretch into the ureteroscope and operate the use, the valve ring has been set up in waterproof cap, elastic water sealing pad through on the valve ring carries out preliminary waterproof, utilize two elastic valve on the valve ring to further play the effect of opening and closing this passageway simultaneously, when there is the waterproof cap of liquid flow direction in ureteroscope inside, thereby two elastic valve receive the thrust of liquid and the laminating seals this passageway, thereby play the effect that prevents that the liquid in the ureteroscope from overflowing by this operation kneck, avoided because the pollution of other apparatus of operating room that the operation kneck liquid outflow of ureteroscope leads to and the influence to the operation.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a waterproof cap connected with a ureteroscope provided by the present invention;

fig. 2 is a schematic perspective view of a waterproof cap for a ureteroscope according to the present invention;

fig. 3 is a top view of a waterproof cap for a ureteroscope according to the present invention;

FIG. 4 is a full sectional view taken at A-A of FIG. 3;

fig. 5 is a schematic perspective view of a connector of a waterproof cap of a ureteroscope according to the present invention;

fig. 6 is a schematic perspective view of the valve ring of the waterproof cap of the ureteroscope in an open state according to the present invention;

fig. 7 is a cross-sectional view of a closure member of a waterproof cap for a ureteroscope according to the present invention.

In the figure: 10-ureteroscope, 11-endoscope, 12-operation interface, 13-perfusion interface, 20-waterproof cap, 21-connecting piece, 211-first barrel, 212-first connecting end, 213-second connecting end, 214-first step surface, 215-second step surface, 216-guide groove, 217-first internal thread, 218-second external thread, 22-valve ring, 221-fixing ring, 222-elastic water sealing pad, 2221-through hole, 223-elastic valve, 2231-top edge, 2232-bottom edge, 2233-side edge, 23-closing piece, 231-second barrel, 32-third connecting end, 233-socket, 234-third step surface, 235-first external thread and 24-channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-7, a waterproof cap 20 for a ureteroscope 10 is provided. As shown in fig. 1, an endoscope 11, an operation interface 12 for inserting other surgical instruments, and an infusion interface 13 for infusing a physiological saline solution into the ureteroscope 10 are provided on the ureteroscope 10. The waterproof cap 20 provided by the utility model is used for connecting the operation interface 12 on the ureteroscope 10, and the problem that the normal saline flows back at the operation interface 12 is solved by arranging the waterproof cap 20. Specifically, as shown in fig. 2, the waterproof cap 20 provided by the present invention includes a connecting member 21 for connecting with the operation interface 12, a valve ring 22 disposed in the connecting member 21, and a sealing member 23 for fixing the valve ring 22 in the connecting member 21, wherein the connecting member 21, the valve ring 22, and the sealing member 23 are sequentially connected to form a channel 24 for passing an operation instrument therethrough.

The connecting piece 21 and the closing piece 23 in the waterproof cap 20 provided by the utility model are made of metal materials, namely made of medical 304 stainless steel materials which are the same as the ureteroscope 10. Therefore, the connecting piece 21 and the closing piece 23 in the waterproof cap 20 can be recycled together with the ureteroscope 10, and both the connecting piece 21 and the closing piece 23 of the waterproof cap 20 can be disinfected together with the ureteroscope 10 during recycling. And the valve ring 22 arranged between the connecting piece 21 and the closing piece 23 is made of medical soft silica gel material. The valve annulus 22 is a single use component, i.e., the waterproof cap 20 requires replacement of a new valve annulus 22 during each procedure with the ureteroscope 10. Firstly, guarantee that the aseptic environment's of operation requirement can be satisfied in the use of this valve ring 22, secondly guarantee this valve ring 22 integrality and have soft elasticity, can receive the promotion of the liquid that flows back and realize the laminating when liquid flows back at ureteroscope operation in-process to closed passage 24 plays the effect that prevents against the current.

Specifically, as shown in fig. 6, the present invention provides a schematic perspective view of a valve ring 22 in a waterproof cap 20 in an initial state. The valve ring 22 includes a fixing ring 221, an elastic water seal 222 disposed on the fixing ring 221, and two elastic valves 223 disposed below the elastic water seal 222. The elastic water seal 222 is fixed on the fixing ring 221 all the time, a through hole 2221 for the operation instrument to pass through is arranged on the elastic water seal 222, the diameter of the through hole 2221 is smaller than 1mm, when the operation instrument passes through the through hole 2221, the elastic water seal 222 can be attached to the outer wall of the instrument all the time, and the waterproof effect is achieved. In the initial state, the elastic valve 223 of the valve ring 22 is in an open state, the top side 2231 of the elastic valve 223 is fixed on the fixing ring 221, the two side sides 2233 are close to form a convex state as shown in fig. 6, and the open state between the two elastic valves 223 enables the middle of the two elastic valves 223 to form the channel 24 for the operation instrument to enter and exit. The top edges 2231 of the two pieces of the elastic valve 223 are fixed to the fixing ring 221 and enclose a circular ring-shaped structure, which is integrally formed with the fixing ring 221, so that the top edges 2231 of the elastic valve 223 can be locked between the connecting member 21 and the closing member 23 by the fixing ring 221. While the bottom edges 2232 of the two pieces of the elastic valve 223 are freely disposed in the connecting piece 21 and can be attached to each other to close the channel 24 or separated from each other to open the channel 24 according to the pressure change in the connecting piece 21.

During ureteroscopy, the waterproof cap 20 is fixed to the operation interface 12, the valve ring 22 in the waterproof cap 20 is in an initial state, and the elastic valve 223 on the valve ring 22 is close to the inner wall of the connecting piece 21, so that the channel 24 in the waterproof cap 20 is in a through opening state. When the ureteroscope 10 is filled with physiological saline during the operation, the physiological saline enters the ureteroscope 10 from the filling interface 13, and part of the physiological saline flows back to the operation interface 12 along the ureteroscope 10. At this time, the waterproof cap 20 on the operation interface 12 may function to close the operation interface 12. The bottom edges 2232 of the two elastic valves 223 on the valve ring 22 in the waterproof cap 20 firstly contact the liquid in the ureteroscope 10, and the bottom edges 2232 are moved towards one side of the closing piece 23 by the pushing of the liquid, so that the bottom edges 2232 of the two elastic valves 223 can be completely jointed, the channel 24 in the waterproof cap 20 is closed, and the liquid is prevented from flowing out from the port of the channel 24. During the operation, the operation instrument is required to be inserted into the ureteroscope 10 from the operation interface 12 for use, and in this case, the operation instrument is only required to be inserted from one side of the closing piece 23, and the operation instrument can be inserted into the ureteroscope 10 to be operated by pushing the closed two elastic valves 223 away. After the operation instrument is inserted into the waterproof cap 20, the two elastic valves 223 in the waterproof cap 20 are still subjected to the pushing force of the liquid in the ureteroscope 10, so that the bottom edges 2232 of the two elastic valves 223 can be always attached to the outer wall of the operation instrument, the channel 24 is still kept closed, and the problem of liquid backflow caused by the insertion of the operation instrument at the operation interface 12 is avoided.

Further, as shown in fig. 4-5, a connection member 21 in a waterproof cap 20 according to the present invention is provided. The connecting member 21 includes a first barrel 211, and the first barrel 211 has a first connecting end 212 for connecting to the operation interface 12 and a second connecting end 213 for connecting to the closing member 23, which are oppositely arranged. The first cylinder 211 of the connector 21 has an inner space through which the operating device and the valve ring 22 can be placed, and the first connection end 212 and the second connection end 213 on the two sides are respectively used for connecting the operation interface 12 and the closing piece 23 of the ureteroscope 10. Wherein the movable connection between the connecting element 21 and the closing element 23 is to enable replacement of the valve ring 22 arranged in the inner space of the first cylinder 211.

As shown in fig. 5, a first step surface 214 for receiving the valve ring 22 is disposed on the inner wall of the first cylinder 211 on a side close to the second connection end 213, the fixing ring 221 of the valve ring 22 is pressed against the first step surface 214 by the fixed connection between the closing member 23 and the second connection end 213, and two elastic valves 223 of the valve ring 22 are freely disposed on a side of the first cylinder 211 of the connection member 21 away from the closing member 23. The fixing ring 221 of the valve ring 22 is disposed on the first step surface 214 of the first cylinder 211, and when the first cylinder 211 is locked with the closing member 23, the valve ring 22 is fixed by the fastening connection between the connecting member 21 and the closing member 23, so that the top edge 2231 of the elastic valve 223 is fixed in the waterproof cap 20. Specifically, the first cylinder 211 of the connecting member 21 of the waterproof cap 20 is provided with a first internal thread 217 on the inner wall on the side close to the first step surface 214, the closing member 23 is provided with a first external thread 235 on the end connected with the connecting member 21, and the connecting member 21 and the closing member 23 are fixedly connected through the mutual fit between the first internal thread 217 and the first external thread 235. In the present embodiment, as shown in fig. 4, the connecting member 21 and the closing member 23 are fixedly connected by a screw thread, and the valve ring 22 is locked between the connecting member 21 and the closing member 23 in the process of locking by the screw thread.

Further, the inner wall of the first cylinder 211 of the connecting member 21 of the waterproof cap 20 provided by the present invention is further provided with a pair of guiding grooves 216 oppositely disposed along the axial direction of the first cylinder 211, and two side edges 2233 of two elastic valves 223 of the valve ring 22 are respectively inserted into the guiding grooves 216. The guide groove 216 can be used to position and guide two side edges 2233 of two pieces of elastic valve 223 disposed on the valve annulus 22. When the top side 2231 of the elastic valve 223 is fixed to the first step surface 214 of the connecting member 21, the two side edges 2233 can be inserted into the guiding groove 216 at all times and retracted in the guiding groove 216 as the pressure of the liquid in the ureteroscope 10 changes. As shown in fig. 4, when the liquid pressure in the ureteroscope 10 causes the bottom edges 2232 of the two pieces of elastic valve 223 to adhere, the side edges of the elastic valve 2232 can be always kept in the guide grooves 216 on both sides and close the channel 24 by the adhesion of the two pieces of elastic valve 223.

In particular, the connector 21 of the waterproof cap 20 is also used to achieve a fixed connection between the waterproof cap 20 and the ureteroscope 10. The outer wall of the first cylinder 211 of the connecting member 21 is further provided with a second step surface 215 for abutting against the operation interface 12 on the side of the first connecting end 212. The second step surface 215 abuts against the operation port 12 of the ureteroscope 10, and an internal thread (not shown) is provided at the operation port 12. Correspondingly, the first cylinder 211 of the connecting member 21 is provided with a second external thread 218 on the outer wall near the second step surface 215, and the connecting member 21 is fixedly connected with the operation interface 12 through the thread. The waterproof cap 20 is fixedly connected with the ureteroscope 10 through the second external thread 218 on the connecting piece 21 and the internal thread of the operation interface 12. The second step surface 215 functions as a positioning and guiding member.

Further, as shown in fig. 7, the present invention provides a full sectional view of the closing member 23 in the waterproof cap 20. The closure 23 comprises a second cylinder 231, the second cylinder 231 having a third connecting end 232 for connecting the connecting element 21 and a socket 233 into which the operating device can be inserted, which are arranged opposite one another. The second cylinder 231 in the closure 23 is hollow and is provided with a socket 233 on one side for insertion of a handling instrument. The socket 233 communicates with the passage 24, and communication between the waterproof cap 20 and the outside is achieved. The second cylinder 231 is fixedly connected to the connection piece 21 on the side of the third connection end 232 and presses the valve ring 22. Therefore, the outer wall of the second cylindrical body 231 is provided with a third step surface 234 on the side of the third connection end 232, which abuts against the second connection end 213 of the coupling 21, and the first male screw 235 is provided on the outer wall of the third step surface 234. The guiding and positioning are achieved by the third step surface 234 abutting against the second connection end 213 on the connection member 21. The end surface of the third connecting end 232 abuts against the fixing ring 221 on the valve ring 22, and the valve ring 22 is fixed to the connecting member 21 by a locking force.

The utility model provides a waterproof cap 20 for ureteroscope 10's beneficial effect lies in: the utility model provides a waterproof cap 20 is connected with operation interface 12 on ureteroscope 10, can supply operating device to pass and stretch into ureteroscope 10 through passageway 24 in waterproof cap 20 and operate the use, because set up valve ring 22 in waterproof cap 20 again, through two elastic valve 223 on valve ring 22, can play the effect of opening and closing this passageway 24, when ureteroscope 10 is inside to have liquid flow to waterproof cap 20, thereby two elastic valve 223 receive the thrust of liquid and laminate and seal this passageway 24, thereby play the effect that prevents that the liquid in ureteroscope 10 from overflowing by this operation interface 12 department, avoided because the pollution of other apparatus of operating room that the liquid outflow of operation interface 12 department of ureteroscope 10 leads to and the influence of operation.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A waterproof cap for a ureteroscope is used for connecting an operation interface on the ureteroscope and is characterized by comprising a connecting piece for connecting with the operation interface, a valve ring arranged in the connecting piece and a closing piece for fixing the valve ring in the connecting piece, the connecting piece, the valve ring and the closing piece are sequentially connected to form a channel for an operating instrument to pass through, the valve ring comprises a fixing ring, an elastic water seal cushion arranged on the fixing ring and two elastic valves positioned below the elastic water seal cushion, the elastic water seal cushion is provided with a through hole for an operating instrument to pass through, the top edges of the elastic valves are fixed on the fixing ring and are enclosed to form a circular ring-shaped structure, and the bottom edges of the elastic valves can be mutually attached to a closed channel or mutually separated to open a channel along with the pressure change in the connecting piece.

2. The waterproof cap for the ureteroscope according to claim 1, wherein the connecting member comprises a first barrel body, the first barrel body has a first connecting end for connecting the operation interface and a second connecting end for connecting the sealing member, which are oppositely arranged, a first step surface for receiving the valve ring is arranged on the inner wall of the first barrel body on a side close to the second connecting end, the fixing ring of the valve ring is pressed on the first step surface through the fixed connection between the sealing member and the second connecting end, and two elastic valves of the valve ring are freely arranged on a side, away from the sealing member, of the first barrel body of the connecting member.

3. The waterproof cap for the ureteroscope according to claim 2, wherein the inner wall of the first cylinder of the connecting member further comprises a pair of guiding grooves oppositely arranged along the axial direction of the first cylinder, and two sides of the two elastic valves of the valve ring are respectively inserted into the guiding grooves.

4. The waterproof cap for the ureteroscope according to claim 2, wherein the first cylinder of the connecting member is provided with a first internal thread on an inner wall of a side close to the first step surface, the closing member is provided with a first external thread on an end connected with the connecting member, and the connecting member and the closing member are fixedly connected through the mutual matching between the first internal thread and the first external thread.

5. The waterproof cap for the ureteroscope according to claim 2, wherein the outer wall of the first cylinder of the connecting member is further provided with a second step surface for abutting against the operation interface on one side of the first connecting end.

6. The waterproof cap for the ureteroscope according to claim 5, wherein the first cylinder of the connecting member is provided with a second external thread on the outer wall close to the second step surface, and the connecting member is fixedly connected with the operation port through the thread.

7. The waterproof cap for a ureteroscope according to claim 4, wherein the closing member comprises a second cylinder body, and the second cylinder body is provided with a third connecting end used for connecting the connecting piece and a socket into which the operating instrument can be inserted, which are arranged oppositely.

8. The waterproof cap for the ureteroscope according to claim 7, wherein a third step surface abutting against the second connecting end of the connecting member is provided on the outer wall of the second cylinder on the side of the third connecting end, and the first external thread is provided on the outer wall of the third step surface.

9. The waterproof cap for a ureteroscope according to claim 1, wherein the connecting member and the closing member are made of a metal material.

10. The waterproof cap for the ureteroscope according to claim 1, wherein the valve ring is made of medical soft silica gel.

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