CN215457874U

CN215457874U - Endoscope clamp passage opening cap

Info

Publication number: CN215457874U
Application number: CN202120174637.8U
Authority: CN
Inventors: 朱伟江; 郑跃伟; 章旭平; 袁利平; 袁洪文; 袁秀伟; 曹良伟; 宋道远
Original assignee: Zhejiang Baian Medical Technology Co ltd
Current assignee: Zhejiang Baian Medical Technology Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-01-11
Anticipated expiration: 2031-01-22

Abstract

The utility model relates to an endoscope, in particular to an endoscope clamp channel opening cap. The utility model aims to provide an endoscope clamp channel opening cap which can not leak liquid after long-term use. The utility model provides an endoscope pincers way opening cap, includes luer connector cap, luer connector cap has the internal thread, and insert pincers valve that is hollow structure fixes in luer connector cap coaxially, and insert the hollow structure constitution of pincers valve and constitute and insert the pincers hole, insert pincers valve and sealed the contact of filling up, the lower extreme of block sets up between sealed pad and luer connector cap, and the sealed contact between block and the sealed pad, the block upper end compress tightly the cooperation outside the sealed pad, the upper end of sealed pad has an expansion joint, the expansion joint receives the block extrusion sealing. The utility model has the following advantages: 1. the long-term use is not easy to fall off and the liquid leakage is avoided; 2. the installation is easy; 3. the sealing effect is good.

Description

Endoscope clamp passage opening cap

Technical Field

The utility model relates to an endoscope, in particular to an endoscope clamp channel opening cap.

Background

For some diseases, the physician needs an endoscope for auxiliary observation. During observation, a doctor must expand the uterus, otherwise, the endoscope is easy to contact with the inner wall of the uterus or the inner wall of the vagina, so that the visual field of the endoscope is in a completely black state. Uterus expansion is realized by injecting uterus expansion liquid into uterus by a doctor through a uterus expansion machine. The endoscope not only has the function of assisting a doctor in observation, but also can have the function of assisting treatment when some medical instruments are added to the endoscope. As shown in fig. 4, when the doctor uses the endoscopic assistance, the following operations are performed: 1. the uterus expanding machine injects uterus expanding liquid into a water inlet channel 6 of the endoscope, and the uterus expanding liquid enters the uterus through a clamping channel; 2. the doctor determines and locks the focus position through a display screen of the endoscope; 3. a doctor can insert medical instruments into the endoscope through the forceps opening 7, and the medical instruments enter the uterus along the forceps opening; 4. the doctor operates the medical instrument to treat the focus.

This requires that the jaw opening of the endoscope require a cap to perform the following functions: 1. when the endoscope is used for auxiliary observation, the uterus swelling liquid can not flow out from the opening of the forceps channel; 2. when the endoscope is used for auxiliary treatment, when the medical instrument is inserted into the opening of the forceps channel, the uterus swelling liquid can not flow out from the opening of the forceps channel.

The existing endoscope clamp channel opening cap is a silica gel cap, and has the following problems: 1. in the process of long-term use, the opening cap of the endoscope clamp passage is rubbed with medical instruments, and the opening of the opening cap of the endoscope clamp passage becomes large to cause liquid leakage. 2. When a medical instrument is inserted into a clamp channel of an endoscope, an opening cap of the clamp channel of the endoscope cannot be well matched with the medical instrument, and liquid leaks.

Uterus swelling liquid leaks from the opening of the forceps channel, and the uterus swelling liquid entering the forceps channel is reduced, so that the uterus entering the forceps channel is automatically reduced, the uterus shrinks and folds are generated, and the focus is hidden in the folds, which is not beneficial to observation of doctors.

In response to the first deficiency, the physician may replace the jaw opening cap. For the second defect, the doctor may stop the operation of the uterus dilating instrument temporarily, or press the water inlet channel (hose) of the endoscope with hands or a water stop clip, so that the walls of the hose contact each other, thereby blocking the water inlet channel of the endoscope and preventing uterus dilating liquid from entering the forceps channel of the endoscope. The physician needs to locate and lock the lesion through the display screen of the endoscope and then reach the lesion by inserting the medical instrument into the endoscope and bringing the jaw path of the medical instrument endoscope.

The uterus is contracted and folds are generated due to the fact that uterus expanding liquid cannot enter the uterus temporarily caused by the second defect operation, and the focus is hidden in the folds and is not beneficial to observation of a doctor. When a doctor prevents uterine distention liquid from entering a channel clamping process of an endoscope, the visual field of the endoscope is easy to change, the doctor cannot know the moving direction of a focus from a display screen of the endoscope, and finally when the doctor operates medical equipment to search focus tissues, the doctor needs to move lenses of the endoscope all around to search the focus again. The doctor searches for the focus again, which consumes time and energy of the doctor, and the patient needs to endure the pain caused by the uterine distention liquid.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an endoscope clamp channel opening cap which can not leak liquid after long-term use.

In order to achieve the purpose, the utility model adopts the following scheme: the utility model provides an endoscope pincers way opening cap, includes luer connector cap, luer connector cap has the internal thread, and insert pincers valve that is hollow structure fixes in luer connector cap coaxially, and insert the hollow structure constitution of pincers valve and constitute and insert the pincers hole, insert pincers valve and sealed the contact of filling up, the lower extreme of block sets up between sealed pad and luer connector cap, and the sealed contact between block and the sealed pad, the block upper end compress tightly the cooperation outside the sealed pad, the upper end of sealed pad has an expansion joint, the expansion joint receives the block extrusion sealing.

The expansion joint is extruded by the metal cover cap, after long-term use, the metal cover cap cannot age, the cover cap cannot rub with an instrument, the cover cap can extrude and seal the expansion joint for a long time, and the uterine distention liquid cannot seep out of the expansion joint. The utility model has longer service life and does not need to be replaced frequently so as to ensure the sealing effect of the utility model. The cap has strong extrusion effect on the expansion joint, and when the endoscope is not inserted into a medical instrument, the expansion joint can be automatically sealed, so that the uterine distention liquid cannot seep out of the expansion joint; when a doctor inserts a medical instrument into the endoscope, the expansion joint can be tightly contacted with the medical instrument, so that the uterine distention liquid cannot seep out of the expansion joint, and the sealing performance of the utility model is improved. The problem that a doctor needs to search for a focus again due to the fact that the lens of the endoscope moves and the doctor cannot know the specific direction of the focus from the display screen of the endoscope in the process that the doctor prevents uterine distention liquid from entering the clamping channel of the endoscope is avoided. The doctor does not need to search the focus again, and the pain of the womb swelling liquid to the patient is reduced.

Preferably, the sealing gasket is provided with a through hole which is opened downwards and corresponds to the lower end of the expansion joint, the through hole is communicated with the expansion joint, and the wall of the through hole extends inwards to form a first annular protrusion. The first annular bulge is used for being matched with the medical appliance, so that the uterine distention liquid cannot pass through the first annular bulge and the medical appliance. Thereby relieving the pressure of uterus swelling liquid on the bottom of the through hole.

Preferably, the upper bottom of the passage hole is downwardly convexly arched. When the upper bottom of the through hole is pressed by the uterus swelling liquid, the bottom of the through hole becomes flat, the distance between two sides of the expansion joint is reduced, two sides of the expansion joint are better in sealing contact or two sides of the expansion joint are better in contact with the outer wall of the medical instrument, and the uterus swelling liquid is less prone to seeping out of the expansion joint, so that the sealing performance of the uterus swelling liquid expansion joint is improved.

Preferably, the sealing gasket is divided into a sealing gasket upper part and a sealing gasket lower part, the diameter of the sealing gasket upper part is smaller than that of the sealing gasket lower part, and the cover cap is provided with a sealing gasket mounting hole which penetrates through the cover cap up and down and is matched with the sealing gasket in shape. The sealing gasket and the cap are not easy to separate from each other, so that the uterine distention liquid is prevented from leaking from the jaw of the endoscope, and the sealing performance of the utility model is improved.

Preferably, the lower end surface of the sealing gasket is provided with a second annular bulge extending downwards. The second annular bulge is in tight fit or interference fit with the forceps valve, so that the uterus swelling liquid is prevented from seeping from the contact part of the sealing gasket and the forceps valve, and the sealing performance of the uterine cavity dilator is improved.

Preferably, the number of the second annular bulges is two, and the two are concentric. Above-mentioned setting, sealed effect is better.

Preferably, the outer wall of the sealing gasket is provided with a third annular protrusion extending outwards. The third annular bulge enables tight fit or interference fit between the sealing gasket and the cover cap, the diameter of the through hole of the sealing gasket is reduced, the sealing gasket can be tightly matched with the medical instrument, and therefore the uterine distention liquid cannot seep out from the sealing gasket and the medical instrument. The third annular bulge and the cover cap are in tight fit or interference fit to replace the outer wall of the sealing gasket and the cover cap in tight fit or interference fit, friction between the outer wall of the sealing gasket and the cover cap is reduced, and assembly is more convenient.

Preferably, the outer wall of the pincer insertion valve is of a conical structure with a larger upper outer diameter and a smaller lower outer diameter. The clamp passage opening of the endoscope is formed in a manner that the outer diameter of the upper end is larger than that of the lower end, the clamp insertion valve is easier to insert into the clamp passage opening, and the assembly is more convenient. During assembly, the endoscope is in threaded fit with the luer connector cap, and the insertion forceps valve is extruded into a forceps channel opening of the endoscope, so that the insertion forceps valve is in interference fit with the forceps channel opening of the endoscope. The forceps valve is matched with the forceps channel opening of the endoscope in an interference fit mode, so that uterine distention liquid cannot seep out between the forceps valve and the forceps channel opening of the endoscope. The sealing ring is arranged at the bottom of a gap between the forceps valve and the luer connector cap, and seals the upper end surface of the endoscope forceps channel opening and the outer wall of the forceps valve, so that the uterus swelling liquid is prevented from seeping out from the forceps channel between the forceps valve and the endoscope, and the sealing performance of the utility model is improved.

Preferably, the cap is detachably fixed with a cover for shielding foreign matters, the cover is provided with a fixing hole with an opening at one side, and the shape of the fixing hole is matched with that of the cap. The cover can prevent foreign matters from falling on the sealing layer, so that the foreign matters are prevented from being brought into the clamp channel by medical instruments, and the endoscope is prevented from being damaged.

The utility model has the following advantages: 1. the long-term use is not easy to fall off and the liquid leakage is avoided; 2. the installation is easy; 3. the sealing effect is good.

Drawings

FIG. 1 is a schematic view of an endoscope;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a perspective view of the present invention.

Detailed Description

As shown in fig. 1 to 3, an endoscope channel opening cap comprises a silicone gasket 1, a metal cap 2, a metal forceps valve 3, and a metal luer cap 4.

The luer connector cap 4 is provided with internal threads, the hollow insertion clamp valve 3 is coaxially fixed in the luer connector cap 4, the hollow structure of the insertion clamp valve 3 is formed into an insertion clamp hole 31, the insertion clamp valve 3 is in sealing contact with the sealing gasket 1, the lower end of the cap 2 is arranged between the sealing gasket 1 and the luer connector cap 4, the cap 2 is in sealing contact with the sealing gasket 1, the upper end of the cap 2 is in compression fit with the outside of the sealing gasket 1, the upper end of the sealing gasket 1 is provided with an expansion joint 15, and the expansion joint 15 is extruded and sealed by the cap 2.

The gasket 1 is divided into a gasket upper portion 11 and a gasket lower portion 12, and the diameter of the gasket upper portion 11 is smaller than the diameter of the gasket lower portion 12. Sealed 1 of filling up is equipped with the clearing hole 13 that supplies medical instrument to pass through, runs through sealed 1 of filling up from top to bottom through the clearing hole, the upper end of clearing hole 13 is equipped with and fills up 1 integrated into one piece of sealed and recessed seal layer 14, expansion joint 15 is located seal layer 14's bottom central authorities, upper end department is kept away from to clearing hole 13 pore wall is equipped with the first annular arch 16 of inside extension, first annular arch 16 and medical instrument cooperation, avoid expanding palace liquid to flow out from medical instrument and the protruding 16 gap of first annular. The lower end of the gasket 1 is provided with two concentrically arranged second annular protrusions 17 extending downwards. The outer wall of the gasket 1 is provided with a third annular projection 18 extending outward.

The cap 2 is provided with a sealing gasket mounting hole which penetrates through the cap up and down, the sealing gasket mounting hole is divided into an upper sealing gasket mounting hole 21 and a lower sealing gasket mounting hole 22, and the diameter of the upper sealing gasket mounting hole 21 is smaller than that of the lower sealing gasket mounting hole 22. The upper sealing gasket mounting hole 21 is matched with the sealing gasket 1, so that the expansion joint 15 is closed, and the uterus swelling liquid is prevented from flowing out of the expansion joint 15. The lower sealing gasket mounting hole 22 is matched with the sealing gasket 1, and the lower sealing gasket mounting hole 22 is matched with the third annular protrusion 17, so that the womb swelling liquid is prevented from flowing out of the contact surface of the hole wall of the sealing gasket mounting hole and the outer wall of the sealing gasket 1. The upper end surface of the cap 2 is slightly higher than the upper end surface of the sealing gasket 1, and the lower end surface of the cap 2 and the lower end surface of the sealing gasket 1 are in the same plane.

The tapered forceps valve 3 is provided with a forceps hole 31 which vertically penetrates through the forceps valve 3. The upper end of the outer wall of the forceps hole 31 is provided with a limit bulge 32 which extends outwards and is annular.

The luer cap 4 is provided with a through hole which vertically penetrates through the luer cap 4, the through hole is divided into an upper through hole 41, a middle through hole 42 and a lower through hole 43 from top to bottom, the diameter of the upper through hole 41 is larger than that of the middle through hole 42, the diameter of the middle through hole 42 is larger than that of the lower through hole 43, and the hole wall of the lower through hole 43 is provided with internal threads. The middle through-hole 42 is fitted with the stopper projection 32 so that the forceps valve 3 is fixed inside the luer cap 4, and the lower end of the forceps valve 3 passes through the lower through-hole 43 and extends to the outside of the luer cap 4.

The cap 2 is sleeved with a cover 5 for shielding foreign matters, the cover 5 is provided with a fixing hole with one side opened, and the shape of the fixing hole is matched with that of the cap 2.

A circle of jaw opening screw threads 71 are arranged at the opening of the jaw opening 7. The jaw opening threads 71 mate with the internal threads of the lower through hole 43 of the luer cap to secure the endoscope jaw opening cap to the jaw opening 7.

When the medical forceps are used, the lower end of the forceps valve is aligned to the endoscope forceps opening, the assembled forceps opening cap is screwed into the endoscope forceps opening through the threaded fit of the outer wall of the forceps opening and the lower through hole of the luer connector cap, and finally medical instruments are inserted into the expansion joint of the sealing gasket of the forceps opening cap.

Because the forceps inserting valve is excessively matched with the opening of the endoscope channel, the uterine distention liquid cannot flow out from the gap between the forceps inserting valve and the opening of the endoscope channel; because the second annular bulge arranged at the lower end of the lower sealing gasket is abutted against the upper end of the inserting forceps valve, the uterus swelling liquid cannot flow out of the gap between the sealing gasket and the inserting forceps valve; because the third annular bulge is abutted against the inner wall of the cap, the uterus swelling liquid cannot flow out of the gap between the sealing gasket and the cap; because the expansion joint is closed under the effect of block or with medical instrument close contact, uterus swelling liquid can't flow out from the expansion joint.

Claims

1. The endoscope clamp channel opening cap is characterized by comprising a Ruhr joint cap (4), wherein the Ruhr joint cap (4) is provided with internal threads, a hollow-structure inserting clamp valve (3) is coaxially fixed in the Ruhr joint cap (4), the hollow structure of the inserting clamp valve (3) is formed into an inserting clamp hole (31), the inserting clamp valve (3) is in sealing contact with a sealing gasket (1), the lower end of a cover cap (2) is arranged between the sealing gasket (1) and the Ruhr joint cap (4), the cover cap (2) is in sealing contact with the sealing gasket (1), the upper end of the cover cap (2) is in compression fit outside the sealing gasket (1), an expansion joint (15) is arranged at the upper end of the sealing gasket (1), and the expansion joint (15) is squeezed and sealed by the cover cap (2).

2. The endoscopic forceps channel opening cap as defined in claim 1, wherein the sealing gasket (1) is provided with a passage hole (13) opening downward corresponding to a lower end of the expansion joint (15), the passage hole (13) communicating with the expansion joint (15), a wall of the passage hole (13) extending inward forming a first annular protrusion (16).

3. The endoscopic forceps channel opening cap as claimed in claim 2, characterized in that the upper bottom of the passage hole (13) is downwardly convexly arched.

4. An endoscope channel opening cap according to claim 1, characterized in that said gasket (1) is divided into a gasket upper portion (11) and a gasket lower portion (12), said gasket upper portion (11) having a diameter smaller than that of said gasket lower portion (12), said cap (2) being provided with a gasket mounting hole penetrating vertically and having a shape matching the gasket (1).

5. An endoscopic forceps channel opening cap according to any of claims 1 to 4, characterised in that the lower end face of the sealing gasket (1) is provided with a second annular projection (17) extending downwards.

6. The endoscopic jaw opening cap according to claim 5, characterized in that said second annular protuberance (17) is two in number and concentric to each other.

7. An endoscopic forceps channel opening cap according to any of claims 1 to 4, characterised in that the outer wall of the sealing gasket (1) is provided with a third outwardly extending annular projection (18).

8. The endoscopic forceps channel opening cap as claimed in claim 1, characterized in that the outer wall of the forceps valve (3) is of a conical configuration with a larger outer diameter at the upper end and a smaller outer diameter at the lower end.

9. The endoscope forceps channel opening cap as claimed in claim 1, characterized in that the cap (2) is detachably fixed with a cover (5) for shielding foreign matter, the cover (5) is provided with a fixing hole opened to one side, and the shape of the fixing hole is matched with the shape of the cap (2).