CN210784266U

CN210784266U - Anti-reflux cap of ureteroscope

Info

Publication number: CN210784266U
Application number: CN201921434577.8U
Authority: CN
Inventors: 洪丽; 张春艳; 牛晓兵; 黄晶晶; 王云炎
Original assignee: Huaian No 1 Peoples Hospital
Current assignee: Huaian No 1 Peoples Hospital
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2020-06-19
Anticipated expiration: 2029-08-31

Abstract

The utility model discloses an anti-refluence cap of ureteroscope, including inside latex valve, silica gel sleeve pipe and external pressure cover, the latex valve is the T type, and its inside front and back section is equipped with the centre bore, and the centre forms inward one-way flap, and silica gel sleeve pipe tail section cup joints on the outer wall of latex valve, and the anterior segment cup joints on the apparatus of ureteroscope stretches into the mouth, and external pressure cover suit is on silica gel sleeve pipe outer wall. The utility model discloses improved sealed cap structure, inside latex valve have good flexible performance, in ureteroscope rubble operation is used, the automatic involution of opening when not using hugs closely foreign matter pincers or rubble apparatus during the use, and whole sealed cap can not lead to the phenomenon of sealed effect difference, flush fluid refluence because of using repeatedly.

Description

Anti-reflux cap of ureteroscope

Technical Field

The utility model relates to the field of medical equipment, more specifically say, it relates to an anti refluence cap of ureteroscope.

Background

Ureteroscope lithotripsy is a relatively advanced minimally invasive operation for treating ureteral calculus at present, has the characteristics of small wound, small pain, short operation time, quick postoperative recovery and the like, and also has the defects of precision of surgical instruments, easiness in loss, high cost and the like. The sealing cap is an important component of the whole set of apparatus, is generally made of silica gel or plastic, and has a structure shown in figure 1, an inner cavity for sleeving a ureteroscope mechanical extending port is arranged in the columnar body, and a small hole communicated with the inner cavity is formed in the top wall of the columnar body. Foreign body forceps or lithotripter repeatedly enter and exit the lens from the small hole, and after repeated use for two times in the operation, the phenomena of untight lumen occlusion, water leakage, pollution to the operation area and splash of an operator easily occur, so that the infection chance is increased. Meanwhile, the backflow of the flushing fluid also affects the definition of the operation visual field. Through clinical research, in order to guarantee the sealing effect, the sealing cap needs to be replaced by a new sealing cap every time the sealing cap is used for three times, and the cost of the sealing cap matched with the original factory is generally 80 yuan, so that the material cost is increased, and the burden of a patient is increased.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a ureteroscope anti-reflux cap of solving above-mentioned problem, its inside latex valve have good elasticity performance, in ureteroscope rubble operation is used, the automatic involution of opening when not using hugs closely foreign matter pincers or rubble apparatus during the use, can not lead to the phenomenon of sealed effect poor, flush fluid refluence because of using repeatedly.

In order to achieve the above purpose, the utility model provides a following technical scheme:

ureteroscope anti-reflux cap, sealed cap include inside latex valve, silica gel sleeve pipe and press the cover outward, and the latex valve is the T type, and its inside front and back section is equipped with the central cavity, and the centre forms inward one-way flap, and silica gel sleeve pipe tail section cup joints on the outer wall of latex valve, and the anterior segment cup joints on the apparatus of ureteroscope stretches into the mouth, and external pressure cover suit is on silica gel sleeve pipe outer wall.

The utility model discloses further improve technical scheme and be, the inside one-way valve of latex valve indicates to cut off the diaphragm of latex valve front and back section centre bore to radial the cutting multichannel incision of central point.

The utility model discloses further improve technical scheme be, the latex valve outer wall is that axial wave wall silica gel sleeve pipe connects the leakproofness better with the latex valve.

The utility model discloses further improve technical scheme and be, silica gel sleeve tail end cover connects to the step wall to the T type on the latex valve outer wall, and external pressure cover front end is pressed at the silica gel sleeve outer wall that machinery stretched into the port position, and the tail end cover is pressed on latex valve tail end outer wall. The outer pressing sleeve connects the silica gel sleeve and the latex valve to the mechanical stretching port more tightly.

The utility model discloses further improve technical scheme be, outer pressure cover is made by elastic material, and its internal diameter cup joints with silica gel sleeve pipe external diameter and latex valve tail end external diameter interference fit. The characteristics of the elastic body are fully utilized to lead the two to be tightly sleeved.

The utility model discloses further improve technical scheme and be, the instrument stretches into mouthful outer wall tail end and is axial wave wall, and silica gel sleeve pipe internal diameter equals with the minimum department external diameter of wave wall.

The utility model discloses beneficial effect:

the utility model provides an improvement sealed cap structure, inside latex valve has good flexible performance, in ureteroscope rubble operation is used, the automatic involution of opening when not using, hug closely foreign matter pincers or rubble apparatus during the use, even foreign matter pincers or rubble apparatus pass the middle flap repeatedly, can not reduce its sealing performance yet, the latex valve is cup jointed with machinery at silica gel sleeve pipe both ends and stretches into the mouth, the external pressure cover is with the inseparable crimping of silica gel cover and latex valve on machinery stretches into the mouth, whole sealed cap can not lead to sealed effect poor because of using repeatedly, the phenomenon of flush fluid refluence. The applicant uses ureteroscope prepared with original factory sealing cap and this application to do 20 cases of ureteroscope operation check, the original factory non-pouring rate is only 25%, and this application reaches 100%.

Drawings

FIG. 1 is a schematic view of a seal cap provided in an original equipment factory;

fig. 2 is a schematic structural view of the utility model sleeved on a ureteroscope;

fig. 3 is a cross-sectional view of the sealing cap of the present invention.

Fig. 4 is a front view of the one-way valve of the latex valve of the present invention.

Detailed Description

As shown in fig. 2 to 3, the ureteroscope comprises a scope body 1 and a scope body 2 connected with the tail end of the scope body 1, a mechanical extending port 3 is formed at the tail end of the scope body 2, a handle 4 is arranged on the scope body 2, a camera eyepiece 5, a light source interface 6, a water inlet (not shown in the figure, on the other side of the scope body), a water outlet 7 are arranged at the front side of the handle, an anti-reflux cap 8 is sleeved on the mechanical extending port 3, the anti-reflux cap comprises an internal latex valve 81, a silica gel sleeve 82 and an external pressing sleeve 83, the latex valve 81 is T-shaped, a central cavity 84 is arranged at the front and rear sections of the latex valve 81, an inward one-way valve 85 is formed in the middle, the one-way valve 85 is a diaphragm for cutting off the central cavity of the front and rear sections of the latex valve, a plurality of cuts 86 are radially cut at the central point of the diaphragm, the outer wall of the latex valve 81 is an axial wave, the tail end of the outer wall of the appliance stretching inlet 3 is also an axial wave wall, the inner diameter of the silica gel sleeve is equal to the outer diameter of the minimum position of the wave wall, the front end of the outer pressing sleeve 83 is pressed on the outer wall of the silica gel sleeve 82 at the position of the port of the appliance stretching inlet, the tail end is sleeved on the outer wall of the tail end of the latex valve 81, the outer pressing sleeve 83 is made of elastic materials, and the inner diameter of the outer pressing sleeve is sleeved with the outer diameter of the silica gel sleeve and the outer diameter of the tail.

Inside latex valve is excellent because of its flexible performance, in ureteroscope rubble operation is used, the automatic involution of opening when not using, foreign matter pincers or rubble apparatus pass the valve in the middle of repeatedly during the use, it hugs closely foreign matter pincers or rubble apparatus, the leakproofness can not weaken, latex valve and mechanical stretching mouth are cup jointed at silica gel sleeve pipe both ends, the external pressure cover is with the inseparable crimping of silica gel cover and latex valve on mechanical stretching mouth, whole sealing cap can not lead to sealed effect poor because of using repeatedly, the phenomenon of flush fluid flows backwards.

Claims

1. Ureteroscope anti-reflux cap, its characterized in that: including inside latex valve (81), silica gel sleeve pipe (82) and external pressure cover (83), latex valve (81) are the T type, and inside front and back section is equipped with central cavity (84), and the centre forms inward one-way valve (85), and silica gel sleeve pipe (82) tail section cup joints on the outer wall of latex valve (81), and the anterior segment cup joints on ureteroscope's apparatus stretches into mouth (3), and external pressure cover (83) suit is on silica gel sleeve pipe (82) outer wall.

2. The ureteroscopic anti-reflux cap of claim 1, wherein: the one-way valve (85) in the latex valve (81) is a diaphragm for separating central cavities of front and rear sections of the latex valve, and a plurality of cuts (86) are radially cut at the central point of the diaphragm.

3. The ureteroscopic anti-reflux cap of claim 1, wherein: the outer wall of the latex valve (81) is an axial wave wall.

4. The ureteroscopic anti-reflux cap of claim 1, wherein: silica gel sleeve pipe (82) tail end cup joints to the step wall to the T type on latex valve (81) outer wall, presses outer silica gel sleeve pipe (82) outer wall of cover (83) front end pressure in the machinery and stretches into the port position, and the tail end cover is pressed on latex valve (81) tail end outer wall.

5. The ureteroscopic anti-reflux cap according to claim 4, characterized in that: the outer pressing sleeve (83) is made of elastic material, and the inner diameter of the outer pressing sleeve is in interference fit with the outer diameter of the silica gel sleeve and the outer diameter of the tail end of the latex valve.

6. The ureteroscopic anti-reflux cap of claim 1, wherein: the tail end of the outer wall of the appliance extending opening (3) is an axial wave wall, and the inner diameter of the silica gel sleeve is equal to the outer diameter of the minimum position of the wave wall.