CN210055967U - Soft choledochoscope guide structure - Google Patents
Soft choledochoscope guide structure Download PDFInfo
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- CN210055967U CN210055967U CN201920624644.6U CN201920624644U CN210055967U CN 210055967 U CN210055967 U CN 210055967U CN 201920624644 U CN201920624644 U CN 201920624644U CN 210055967 U CN210055967 U CN 210055967U
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Abstract
The utility model discloses a soft cholangioscope guide structure, including straight tube, base and guiding tube, the guiding tube is the type of moulding pipe that can bend, one section of straight tube is connected with the base, and the other end and guiding tube connection and intercommunication, the base is equipped with and is used for communicateing the outside passageway of straight tube and base, be equipped with in the passageway and be used for preventing gaseous one-way sealing member from straight tube one end flow direction base outside one end, still be equipped with the installation department of lubricanting piece and supply the lubricated installation in the passageway of base, the lubricanting piece sets up on the installation department, the medical cotton cake that has lubricated liquid for infiltrating, medical cotton cake middle part is equipped with the through-hole that supplies soft cholangioscope to pass through, the aperture of through-hole is the size phase-match of soft cholangioscope. The utility model discloses a guide structure has simple structure, lets soft choledochoscope arrive target bile duct smoothly, can effectively reduce advantages such as the wearing and tearing of operation in-process choledochoscope camera lens.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to soft choledochoscope guide structure.
Background
With the wide development of the laparoscopy technology, the application of the laparoscopic biliary tract exploration is more and more, and the laparoscopic biliary tract exploration is generally a soft choledochoscope. The softness of the soft choledochoscope is originally an advantage, but the softness under the laparoscope is insufficient, and because of the softness, a surgical user cannot exert strength and cannot effectively reach a target bile duct, so that the surgical time is prolonged, the cost is increased, and the pain of a patient is increased.
In order to solve the problems, people invent a soft cholangioscope guiding structure, for example, the Chinese utility model patent with the publication number of CN203328674U discloses a medical disposable cholangioscope sheath, which comprises a hollow tube and a connecting seat connected with the hollow tube, wherein the front end of the hollow tube is provided with a bending guiding tube made of medical plastics, the bending guiding tube is integrally formed with the hollow tube, the connecting seat is connected with the rear end of the hollow tube, and the inner wall of the connecting seat is provided with a sealing ring.
The existing soft choledochoscope guiding structure well solves the problem of soft choledochoscope guiding, and can well guide the choledochoscope to the position of a target bile duct. Because the camera lens of soft cholangioscope is very fragile, very easily wearing and tearing and influence the use, the guiding tube body of current cholangioscope guide structure must adopt hard material owing to need guide, just so makes the cholangioscope can touch the pipe wall in the business turn over in-process of guiding tube body inevitable, scrapes easily, influences the use, also can make cholangioscope's life reduce.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a soft choledochoscope guide structure which has simple structure, can make the soft choledochoscope smoothly reach a target bile duct and can effectively reduce the abrasion of a choledochoscope lens in the operation process.
The purpose of the utility model is realized by adopting the following technical scheme:
the utility model provides a soft cholangioscope guide structure, includes straight tube, base and guiding tube, the guiding tube is the type of moulding pipe that can bend, one section of straight tube is connected with the base, the other end and guiding tube connection and intercommunication, the base is equipped with and is used for communicateing the outside passageway of straight tube and base, be equipped with the one-way sealing member who is used for preventing gas from straight tube one end flow to the outside one end of base in the passageway, still be equipped with the lubricator in the passageway of base and supply the installation department of lubricator installation, the lubricator sets up on the installation department, the medical cotton cake that has lubricated liquid for soaking in the lubricator, medical cotton cake middle part is equipped with the through-hole that supplies soft cholangioscope to pass through, the aperture of through-hole is.
The utility model discloses in, further preferred scheme does, the installation department is a ring channel, the outer edge of medical cotton cake is inlayed and is established in the ring channel, still be equipped with an intercommunication ring channel and the outside lubricated liquid of base on the base and add the hole, be equipped with the valve on the base outer wall, the switching of valve is used for realizing ring channel and the outside intercommunication of base or separating.
The utility model discloses in, further preferred scheme does, the quantity that lubricated liquid adds the hole is two at least, and each lubricated liquid adds hole evenly distributed, the quantity, the position of valve and lubricated liquid add the pore phase-match.
In the utility model, a further preferred scheme is that the base comprises an upper seat and a lower seat which are connected in a detachable way; a first cavity is formed in the upper seat, and one end of the first cavity is communicated with the straight pipe; a second cavity is arranged in the lower seat, one end of the second cavity is communicated with the first cavity to form a channel for communicating the straight pipe with the outside of the base, and the other end of the second cavity is communicated with the outside of the base and is used for a soft choledochoscope to enter; the second cavity, the first cavity, the straight pipe and the guide pipe are communicated in sequence; the one-way sealing element comprises a first one-way sealing element arranged in the first cavity and used for spacing the second cavity from the straight pipe, and a second one-way sealing element arranged in the second cavity and used for spacing the first cavity from the outside of the base; the lubrication is disposed between the first one-way seal and the second one-way seal.
The utility model discloses in, further preferred scheme does, first one-way sealing member comprises two piece at least sealed valves.
The utility model discloses in, further preferred scheme does, the one-way sealing member of conical that the crisscross weaving of second one-way sealing member is become by 3 at least gasket slopes, through-hole position on the medical cotton cake is located directly over conical one-way sealing member summit of second.
In the utility model, the further preferred scheme is that the length of straight tube is 180-220mm, the length of guiding tube is 16-25mm, the length of base is 25-35mm, the inside passageway of base, straight tube internal diameter and the internal diameter of guiding tube are 8 mm.
In the utility model, a further preferred scheme is that one end of the guiding tube, which is far away from the straight tube, is in the shape of an oblique opening with an included angle of 35-50 degrees.
In the utility model, a further preferred scheme is that the guiding tube is a corrugated tube made of medical materials.
The utility model discloses in, further preferred scheme does, be equipped with the graphite coating on the straight tube inner wall.
Compared with the prior art, the beneficial effects of the utility model reside in that: adopt the setting of above-mentioned structure, in the operation use, soft cholangioscope passes in can following the medical cotton cake middle and soft cholangioscope size assorted through-hole that has the lubricated liquid of infiltration in the outside access passage of base, can touch medical cotton cake passing the in-process, the lubricated liquid on the cotton cake can scribble the lubricated liquid of one deck on giving soft cholangioscope camera lens, soft cholangioscope camera lens is at the in-process of business turn over straight tube like this, can effectively reduce wearing and tearing, promote product availability factor.
Drawings
Fig. 1 is a schematic structural view of a soft choledochoscope guide structure according to embodiments 1-2 of the present invention;
fig. 2 is a schematic structural view of a second one-way sealing member of a soft choledochoscope guide structure according to embodiment 2 of the present invention;
wherein: 1. a straight pipe; 2. a guide tube; 3. a base; 30. a channel; 301. a first cavity; 302. a second cavity; 31. an upper seat; 32. a lower seat; 33. a lubricating member; 34. an annular groove; 35. a lubricating fluid addition hole; 36. a valve; 37. a first one-way seal; 38. a second one-way seal; 381. a first sealing sheet; 382. A second sealing sheet; 383. a third sealing sheet; 384. and a fourth sealing sheet.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
The utility model provides a soft cholangioscope guide structure, includes straight tube, base and guiding tube, the guiding tube is the type of moulding pipe that can bend, one section of straight tube is connected with the base, the other end and guiding tube connection and intercommunication, the base is equipped with and is used for communicateing the outside passageway of straight tube and base, be equipped with the one-way sealing member who is used for preventing gas from straight tube one end flow to the outside one end of base in the passageway, still be equipped with the lubricator in the passageway of base and supply the installation department of lubricator installation, the lubricator sets up on the installation department, the medical cotton cake that has lubricated liquid for soaking in the lubricator, medical cotton cake middle part is equipped with the through-hole that supplies soft cholangioscope to pass through, the aperture of through-hole is.
By adopting the structure, in the operation and use process, the soft choledochoscope enters the channel from the outside of the base, can pass through the through hole which is matched with the soft choledochoscope in size in the middle of the medical cotton cake soaked with the lubricating liquid, and can touch the medical cotton cake in the passing process (the medical cotton cake in the utility model is a cake-shaped piece made of medical cotton), and the lubricating liquid on the cotton cake can coat a layer of lubricating liquid on the lens of the soft choledochoscope, so that the lens of the soft choledochoscope can effectively reduce abrasion and improve the use efficiency of the product in the process of going in and out a straight pipe; and the material of preferred medical cotton is as lubricated piece main part, and on the one hand is clean health, can not cause the patient to infect, and on the other hand the cotton cake itself is softer, can not influence the business turn over of soft choledochoscope.
To the lubricating fluid of the utility model, various lubricating fluids such as paraffin oil, vaseline and the like can be clinically applied in medicine.
The shape and structure of the mounting part are not particularly limited, and the lubricating piece can be fixed well, and the mounting part can be embedded by adopting a groove-shaped structure; the clamping can be carried out by a clamp, and the grasping can be carried out by a claw.
The installation of the product is stable, and the lubricating liquid is convenient to supplement; the following settings can be made; the installation department is an annular groove, the outer edge of medical cotton cake inlays and establishes in the annular groove, still be equipped with a intercommunication annular groove and the outside lubricated liquid of base on the base and add the hole, be equipped with the valve on the base outer wall, the switching of valve is used for realizing the intercommunication or the partition of annular groove and base outside. By adopting the structure, on one hand, the cotton cakes are more stable and firm by adopting the embedding of the annular groove; on the other hand sets up the outside lubricated liquid interpolation hole of intercommunication ring channel and base, can be convenient for supply lubricated liquid, when using, can close the valve, guarantees that the air does not get into, when needs add lubricated liquid, opens the valve, adds paraffin oil, then close the valve can.
The number of the lubricating liquid addition holes is not particularly limited; in order to facilitate the even addition of the paraffin oil, the number of the lubricating liquid adding holes can be set to be at least two, the lubricating liquid adding holes can be evenly distributed and arranged, and the number and the positions of the valves are matched with the lubricating liquid adding holes; this allows for the even injection of paraffin oil at different locations.
In order to achieve better sealing performance, the following settings can be made: the base comprises an upper seat and a lower seat, and the upper seat and the lower seat are detachably connected; a first cavity is formed in the upper seat, and one end of the first cavity is communicated with the straight pipe; a second cavity is arranged in the lower seat, one end of the second cavity is communicated with the first cavity to form a channel for communicating the straight pipe with the outside of the base, and the other end of the second cavity is communicated with the outside of the base and is used for a soft choledochoscope to enter; the second cavity, the first cavity, the straight pipe and the guide pipe are communicated in sequence; the one-way sealing element comprises a first one-way sealing element arranged in the first cavity and used for spacing the second cavity from the straight pipe, and a second one-way sealing element arranged in the second cavity and used for spacing the first cavity from the outside of the base; the lubrication is disposed between the first one-way seal and the second one-way seal. The structure is arranged, namely the base is arranged into two parts which are detachably connected, a channel is arranged between the upper seat and the base, and two one-way sealing elements are arranged in the channel, so that on one hand, the sealing function can be better realized; on the other hand, the lubricating piece is arranged between the two sealing pieces, so that volatilization or evaporation of lubricating liquid can be prevented, and the service life is prolonged.
As the unidirectional sealing member, there may be mentioned a unidirectional sealing structure commonly used in the art, such as a unidirectional sealing member composed of at least two sealing flaps. In order to improve the sealing performance, the unidirectional sealing element can be arranged as follows: the second one-way sealing element is a conical one-way sealing element formed by weaving at least 3 sealing pieces in an obliquely staggered manner, and the position of a through hole in the medical cotton cake is positioned right above the vertex of the conical second one-way sealing element. Through the setting of this structure, conical one-way sealing member can contract the one-way ventilative region of sealing member to minimum, promptly for conical vertex position, and is littleer, the performance is better than the line ventilative region between the traditional sealed flap.
To the utility model discloses soft cholangioscope guide structure's size can set up according to actual need, if can do as follows the setting: the length of the straight pipe is 180-220mm, the length of the guide pipe is 16-25mm, the length of the base is 25-35mm, and the channel in the base, the inner diameter of the straight pipe and the inner diameter of the guide pipe are 8 mm.
For better puncture and convenient guidance, the following settings can be made: one end of the guide tube, which is far away from the straight tube, is in a bevel shape with an included angle of 35-50 degrees.
As for the selection of the guide tube, various plastic tubes made of medical materials can be selected, such as a corrugated tube made of medical materials. For the guide tube, the guide tube can be bent 15-30 degrees during use, so that the guide and the use are more convenient.
In order to further reduce the abrasion of the soft choledochoscope guide structure lens, a lubricating coating, such as a graphite coating, can be arranged in the straight pipe.
Example 1
With reference to fig. 1, a soft choledochoscope guiding structure comprises a straight tube 1, a base 3 and a guiding tube 2, wherein the guiding tube is a bendable plastic tube, one section of the straight tube is connected with the base, the other end of the straight tube is connected and communicated with the guiding tube, the base is provided with a channel 30 for communicating the straight tube with the outside of the base, a one-way sealing element for preventing gas from flowing from one end of the straight tube to one end of the outside of the base is arranged in the channel, a lubricating piece 33 and an installation part for installing the lubricating piece are further arranged in the channel of the base, the lubricating piece is arranged on the installation part, the lubricating piece is a medical cotton cake soaked with lubricating liquid, a through hole (not marked) for the soft choledochoscope to pass through is arranged in the middle of the medical cotton cake, and the aperture of the; the mounting part is an annular groove 34, the outer edge of the medical cotton cake is embedded in the annular groove, the base is further provided with a lubricating liquid adding hole 35 for communicating the annular groove with the outside of the base, the outer wall of the base is provided with a valve 36, and the valve is opened and closed for realizing communication or separation of the annular groove and the outside of the base; the length of the straight pipe is 180-220mm, the length of the guide pipe is 16-25mm, the length of the base is 25-35mm, and the inner diameter of the channel, the inner diameter of the straight pipe and the inner diameter of the guide pipe in the base are 8-12 mm; one end of the guide tube, which is far away from the straight tube, is in a bevel shape with an included angle of 35-50 degrees.
Example 2
Referring to fig. 1 to 2, a soft choledochoscope guide structure, which is different from that of example 1, may further include: the base comprises an upper seat 31 and a lower seat 32, and the upper seat and the lower seat are detachably connected; a first cavity 301 is formed in the upper seat, and one end of the first cavity is communicated with the straight pipe; a second cavity 302 is arranged in the lower seat, one end of the second cavity is communicated with the first cavity to form a channel 30 for communicating the straight pipe with the outside of the base, and the other end of the second cavity is communicated with the outside of the base and is used for a soft choledochoscope to enter; the second cavity, the first cavity, the straight pipe and the guide pipe are communicated in sequence; the one-way sealing elements comprise a first one-way sealing element 37 arranged in the first cavity and used for separating the second cavity from the straight pipe, and a second one-way sealing element 38 arranged in the second cavity and used for separating the first cavity from the outside of the base; the lubricating piece is arranged between the first one-way sealing piece and the second one-way sealing piece and is arranged in the second cavity; the first one-way sealing element is a one-way sealing element formed by two sealing valves, the second one-way sealing element 38 is a conical one-way sealing element formed by obliquely and alternately weaving 4 sealing pieces (including a first sealing piece 381, a second sealing piece 382, a third sealing piece 383 and a fourth sealing piece 384), and the through hole position on the medical cotton cake is positioned right above the vertex of the conical second one-way sealing element.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a soft cholangioscope guide structure, but includes straight tube, base and guiding tube, the guiding tube is the type of moulding pipe that can bend, one section of straight tube is connected with the base, and the other end and guiding tube connection and intercommunication, the base is equipped with and is used for communicateing the outside passageway of straight tube and base, be equipped with in the passageway and be used for preventing gaseous one-way sealing member, its characterized in that from the outside one end of straight tube one end flow direction base: still be equipped with the installation department of lubricant piece and confession lubricant piece installation in the passageway of base, the lubricant piece sets up on the installation department, the medical cotton cake of lubricant piece for soaking lubricating liquid, medical cotton cake middle part is equipped with the through-hole that supplies soft cholangioscope to pass through, the aperture of through-hole is the size phase-match of soft cholangioscope.
2. The soft choledochoscope guide structure according to claim 1, wherein: the installation department is an annular groove, the outer edge of medical cotton cake inlays and establishes in the annular groove, still be equipped with a intercommunication annular groove and the outside lubricated liquid of base on the base and add the hole, be equipped with the valve on the base outer wall, the switching of valve is used for realizing the intercommunication or the partition of annular groove and base outside.
3. The soft choledochoscope guide structure according to claim 2, wherein: the number of the lubricating liquid adding holes is at least two, the lubricating liquid adding holes are uniformly distributed, and the number and the positions of the valves are matched with those of the lubricating liquid adding holes.
4. The soft choledochoscope guide structure according to claim 1, wherein: the base comprises an upper seat and a lower seat, and the upper seat and the lower seat are detachably connected; a first cavity is formed in the upper seat, and one end of the first cavity is communicated with the straight pipe; a second cavity is arranged in the lower seat, one end of the second cavity is communicated with the first cavity to form a channel for communicating the straight pipe with the outside of the base, and the other end of the second cavity is communicated with the outside of the base and is used for a soft choledochoscope to enter; the second cavity, the first cavity, the straight pipe and the guide pipe are communicated in sequence; the one-way sealing element comprises a first one-way sealing element arranged in the first cavity and used for spacing the second cavity from the straight pipe, and a second one-way sealing element arranged in the second cavity and used for spacing the first cavity from the outside of the base; the lubrication is disposed between the first one-way seal and the second one-way seal.
5. The soft choledochoscope guide structure according to claim 4, wherein: the first one-way sealing element is composed of at least two sealing flaps.
6. The soft choledochoscope guide structure according to claim 4, wherein: the second one-way sealing element is a conical one-way sealing element formed by weaving at least 3 sealing pieces in an obliquely staggered manner, and the position of a through hole in the medical cotton cake is positioned right above the vertex of the conical second one-way sealing element.
7. The soft choledochoscope guide structure according to any one of claims 1 to 6, wherein: the length of the straight pipe is 180-220mm, the length of the guide pipe is 16-25mm, the length of the base is 25-35mm, and the channel in the base, the inner diameter of the straight pipe and the inner diameter of the guide pipe are 8 mm.
8. The soft choledochoscope guide structure according to any one of claims 1 to 6, wherein: one end of the guide tube, which is far away from the straight tube, is in a bevel shape with an included angle of 35-50 degrees.
9. The soft choledochoscope guide structure according to any one of claims 1 to 6, wherein: the guide tube is a corrugated tube made of medical materials.
10. The soft choledochoscope guide structure according to any one of claims 1 to 6, wherein: and a graphite coating is arranged on the inner wall of the straight pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920624644.6U CN210055967U (en) | 2019-04-30 | 2019-04-30 | Soft choledochoscope guide structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920624644.6U CN210055967U (en) | 2019-04-30 | 2019-04-30 | Soft choledochoscope guide structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210055967U true CN210055967U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920624644.6U Expired - Fee Related CN210055967U (en) | 2019-04-30 | 2019-04-30 | Soft choledochoscope guide structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210055967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113712495A (en) * | 2021-09-16 | 2021-11-30 | 浙江大学 | Tubular device for guiding operation of choledochoscope during endoscopic common bile duct exploration |
-
2019
- 2019-04-30 CN CN201920624644.6U patent/CN210055967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113712495A (en) * | 2021-09-16 | 2021-11-30 | 浙江大学 | Tubular device for guiding operation of choledochoscope during endoscopic common bile duct exploration |
| CN113712495B (en) * | 2021-09-16 | 2022-09-23 | 浙江大学 | Tubular device for guiding operation of choledochoscope during endoscopic common bile duct exploration |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 Termination date: 20210430 |
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| CF01 | Termination of patent right due to non-payment of annual fee |