Disposable water leakage-proof connector for choledochoscope
By designing a leak-proof connector for the cholangioscope and utilizing the expandable and retractable characteristics of the tee connector and sealing plug, the problem of overflowing irrigation water during cholangioscopic stone removal was solved, achieving a sealed operation, reducing the risk of infection, and simplifying the cleaning process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NO 1 THE PEOPLES HOSPITAL HUAIAN CITY
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-16
AI Technical Summary
During stone removal, the flushing water from existing disposable cholangioscopes is prone to overflow, leading to contamination of the sterile environment and increasing the risk of iatrogenic infection.
A disposable cholangioscope leak-proof connector was designed, which uses a three-way connector and a sealing plug. The sealing plug made of butyl rubber is tightly engaged with the three-way connector. The plug hole channel of the sealing plug can be expanded and contracted to ensure the sealing of the basket during the insertion and removal process. Combined with the peeling ear structure, it is easy to operate.
It effectively prevents overflow of irrigation water, reduces intraoperative contamination, lowers the risk of postoperative infection, simplifies cleaning time, and is easy to sterilize at high temperatures.
Smart Images

Figure CN224357572U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field, especially one -off cholangioscopy anti -leakage connector. BACKGROUND
[0002] Cholangiolithiasis is a common disease in clinic, and the emergence of cholangioscopy provides great convenience for intraoperative lithotripsy. The existing disposable cholangioscopy solves the problems of complex and cumbersome disinfection process, insufficient control knob angle adjustment and the like, and has higher clarity, but the disposable cholangioscopy often has a large amount of flushing water overflow and pollutes the sterile gown and sterile gown during use, especially during the process of taking stones, resulting in an increase in the incidence of iatrogenic infection, which is not conducive to the recovery of patients. UTILITY MODEL CONTENT
[0003] In view of the problems in the prior art, the utility model provides a one -off cholangioscopy anti -leakage connector, which is connected at the mouth of the cholangioscopy stone basket, and the place is always kept closed after the basket enters and during operation, so that the flushing water no longer overflows, and has the advantages of simple operation, practicality and the like.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] The one -off cholangioscopy anti -leakage connector includes a tee connector, the front end of the tee connector is provided with a front connector for connecting the mouth of the cholangioscopy stone basket, the rear end is provided with a rear connector for wearing the basket, the other side end is a water injection pipe, the end face of the rear connector is provided with a ring groove and a conical groove, and the center is provided with a through hole, the end face of the rear connector is provided with a elastic sealing plug, the sealing plug includes an integral base plate and a plug body, the inner surface of the base plate is provided with a convex ring in the ring groove, the middle is a conical plug body in the conical groove, the plug body is provided with a plug hole channel in the center, and the plug hole channel is expandable.
[0006] Further improvement scheme is that the sealing plug is made of butyl rubber material.
[0007] Further improvement scheme is that the outer surface edge of the base plate is provided with a stripping ear.
[0008] Further improvement scheme is that the stripping ear is an ear-shaped structure, the widest part is 6mm, and the height is 3mm.
[0009] Further improvement scheme is that the diameter of the plug hole channel is 1mm and can be expanded to 2.5mm.
[0010] Further improvement scheme is that the inner wall of the front connector has a spiral thread, and the front connector is screw-connected with the mouth of the cholangioscopy stone basket.
[0011] Further improvement scheme is that the water injection pipe is provided with a cap that is clamped. Beneficial effects
[0012] The utility model discloses a perfect engagement with disposable choledochoscope, and the sealing plug adopts the butyl rubber material with elasticity, and the rear joint of the tee connector is tightly connected, the sealing plug's plug hole channel can be expanded and contracted to guarantee the good sealing property during the in and out process of the basket, prevents the pollution caused by the flushing water during operation, finally reduces the cleaning time during operation, reduces the incidence of postoperative infection, and the material is easy to obtain, can be repeatedly high-temperature sterilized and is not easy to damage. The design of the stripping ear facilitates the removal of the sealing plug, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the front view of the utility model;
[0014] Figure 2 It is the rear joint section view of the utility model;
[0015] Figure 3 It is the sealing plug section view of the utility model. DETAILED DESCRIPTION
[0016] As Figure 1 、 Figure 2 、 Figure 3 The utility model discloses a tee connector 1 and the sealing plug 2 of adopting butyl rubber material are made, the tee connector 1 front end is equipped with front joint 11, and the inner wall of front joint 11 has the spiral thread, and is connected with the mouth of the stone basket of the choledochoscope, and the rear end is equipped with rear joint 12 for wearing the basket, and the other side end is water injection pipe 13, and the end surface outer periphery of rear joint 12 is equipped with ring groove 121, and is equipped with conical groove 122, and the center is equipped with through hole 123, and the end surface of rear joint 12 is equipped with sealing plug 2, and sealing plug 2 includes integral bottom disc 21 and plug body 22, and the inner surface of bottom disc 21 is equipped with the convex ring 23 of the butt joint of ring groove 121, and the middle is the conical plug body 22 of the butt joint of conical groove 122, and the center of plug body 22 is equipped with plug hole channel 24, and because sealing plug is butyl rubber material, plug hole channel 24 has expansion elasticity, and the diameter of plug hole channel 24 is 1mm, and when the basket is inserted, it can be expanded to 2.5mm elastic package, and can always keep airtightness during the operation process, prevent water leakage. The plug body 22 is the conical body structure, and the front and back of the plug body 22 are conveniently identified during use, and the plug body 22 is more convenient to insert into the target hole.
[0017] The outer surface edge of bottom disc 21 is equipped with stripping ear 25, and stripping ear 25 is ear-shaped structure, and the widest place is 6mm, and the height is 3mm. When the sealing plug is removed, the finger is easy to force, and the operation is not affected.
[0018] The water injection pipe 13 is equipped with the cap 14 of clamping.
[0019] The utility model discloses in the disposable choledochoscope use field such as biliary surgery, internal medicine of digestion can be applicable.
[0020] The above merely describes preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.
Claims
1. A disposable cholangioscope leak-proof connector, comprising a three-way connector (1), wherein the front end of the three-way connector (1) is provided with a front connector (11) for connecting to the stone retrieval basket of the cholangioscope, the rear end is provided with a rear connector (12) for inserting the basket, and the other end is a water injection pipe (13), characterized in that: The rear connector (12) has an annular groove (121) on the outer periphery of its end face, a conical groove (122) inside, and a central through hole (123). A sealing plug (2) is plugged into the end face of the rear connector (12). The sealing plug (2) includes an integral base (21) and a plug body (22). The inner surface of the base (21) has a convex ring (23) that mates with the annular groove (121) around its periphery. The middle part is a conical plug body (22) that mates with the conical groove (122). The plug body (22) has a plug hole channel (24) in the center. The plug hole channel (24) has expansion and contraction elasticity.
2. The disposable cholangioscope leak-proof connector according to claim 1, characterized in that: The sealing plug (2) is made of butyl rubber.
3. The disposable cholangioscope leak-proof connector according to claim 1, characterized in that: The outer surface edge of the chassis (21) is provided with a peeling lug (25).
4. The disposable cholangioscope leak-proof connector according to claim 3, characterized in that: The stripped ear (25) is an ear-shaped structure with a maximum width of 6 mm and a height of 3 mm.
5. The disposable cholangioscope leak-proof connector according to claim 1, characterized in that: The plug channel (24) has a diameter of 1 mm and can be expanded to 2.5 mm.
6. The disposable cholangioscope leak-proof connector according to claim 1, characterized in that: The inner wall of the front connector (11) has spiral patterns, and the front connector is screwed to the opening of the cholangioscope stone retrieval basket.
7. The disposable cholangioscope leak-proof connector according to claim 1, characterized in that: The water injection pipe (13) is provided with a snap-fit cap (14).