CN214912325U

CN214912325U - Ureteral catheter for percutaneous nephroscope operation

Info

Publication number: CN214912325U
Application number: CN202022511220.4U
Authority: CN
Inventors: 熊林
Original assignee: Shenzhen Hospital University of Hong Kong
Current assignee: Shenzhen Hospital University of Hong Kong
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-11-30
Anticipated expiration: 2030-11-03

Abstract

The application relates to a ureteral catheter for percutaneous nephroscope surgery, which comprises a catheter body, wherein the tail end of the catheter body is provided with a rotary joint male head matched and connected with an infusion apparatus, the rotary joint male head and the catheter body are integrally formed, and the rotary joint male head is provided with an external thread used for being in threaded connection with a rotary joint female head of the infusion apparatus; still elasticity clamps a fixing device on the body, fixing device includes parallel arrangement's first elasticity clamping piece and second elasticity clamping piece and connects in the elastic connection piece between first elasticity clamping piece and second elasticity clamping piece, the elastic connection piece will two centre gripping spaces about separating between first elasticity clamping piece and the second elasticity clamping piece, the body clamps in a centre gripping space, and another centre gripping space is used for clamping the ureter. The ureteral catheter has the characteristics of convenient connection and disassembly, is beneficial to safe operation and reduces the workload of medical care.

Description

Ureteral catheter for percutaneous nephroscope operation

Technical Field

The present application relates to medical interventional devices, and more particularly, to a ureteral catheter for percutaneous nephroscope procedures.

Background

Urolithiasis is one of the most common diseases in urology surgery. In China, the incidence of urinary calculi is about 1% -5%, in southern areas is as high as 5% -10%, according to the situation of general investigation of Chinese population in 2010, the corrected prevalence of kidney calculi of Chinese adults is 5.8%, wherein the prevalence of male is 6.5%, and the prevalence of female is 5.1%. According to the estimation, about 6120 ten thousand adult kidney stone patients exist in China, wherein about 3470 thousands of men exist and about 2650 thousands of women exist. The data suggest that the patient base for treating the kidney stone by the operation is large, and more than 20000 cases are generated in Shenzhen region every year, and 200 ten thousand cases are generated in China every year. Percutaneous nephrolithotripsy is a relatively common minimally invasive treatment.

The first step of percutaneous nephrolithotomy needs a lithotomy position to retain a ureteral catheter for water injection, the ureteral catheter which is commonly used clinically at present needs to be connected with an infusion apparatus scalp needle and then connected with the infusion apparatus to achieve the purpose of water injection, and scale marks on the ureteral catheter are not clear. There are also specialized ureteral catheters with balloons in the clinic, but they are expensive and do not have well-defined scale markings, nor special fixation devices. When the lithotomy position of the ureter catheter and the ureter is changed into the prone position, the ureter catheter and the ureter catheter are usually fixed by using an adhesive tape to prevent the catheters from falling off, the process of removing the ureter catheter by unfastening the adhesive tape in the prone position is complicated, and the workload of nurses is large.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present application is to provide a ureteral catheter for percutaneous nephroscope surgery, which is more convenient to use, in view of the above-mentioned drawbacks of the prior art.

The technical scheme adopted by the application for solving the technical problem is as follows: the ureteral catheter for percutaneous nephroscope surgery comprises a catheter body, wherein a rotary joint male head matched and connected with an infusion apparatus is arranged at the tail end of the catheter body, the rotary joint male head and the catheter body are integrally formed, and the rotary joint male head is provided with an external thread used for being in threaded connection with a rotary joint female head of the infusion apparatus; still elasticity clamps a fixing device on the body, fixing device includes parallel arrangement's first elasticity clamping piece and second elasticity clamping piece and connects in the elastic connection piece between first elasticity clamping piece and second elasticity clamping piece, the elastic connection piece will two centre gripping spaces about separating between first elasticity clamping piece and the second elasticity clamping piece, the body clamps in a centre gripping space, and another centre gripping space is used for clamping the ureter.

In one embodiment of the ureteral catheter for percutaneous nephroscopic surgery according to the present application, a protective cap is further threadedly coupled to the rotary joint pin.

In an embodiment of the ureteral catheter for percutaneous nephroscope surgery according to the present application, the tip end of the tube body is an open port, and a smooth blunt tip is formed at the periphery of the open port.

In one embodiment of the ureteral catheter for percutaneous nephroscopy, according to the application, the periphery of the tube body is provided with a scale mark at intervals of 1cm within a range of 50cm from the head end to the tail end.

In one embodiment of the ureteral catheter for percutaneous nephroscopy according to the present application, the scale mark is an annular scale ring formed at the outer periphery of the tube body.

In one embodiment of the ureteral catheter for percutaneous nephroscopic surgery according to the present application, the first elastic clip, the second elastic clip and the elastic connecting piece are all made of medical elastic rubber or silica gel.

The ureteral catheter for percutaneous nephroscope operation, which implements the application, has the following beneficial effects: the ureteral catheter tail end according to this application embodiment design is equipped with the rotary joint male joint that can the lug connection transfusion system connects to from taking can with the fixed device of ureter reciprocal anchorage, have connect convenient, dismantle convenient characteristics, be favorable to the safe implementation of operation, and alleviate medical care work load.

Drawings

The present application will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic structural view of a ureteral catheter for percutaneous nephroscopy surgery according to an embodiment of the present application;

fig. 2 is a partial structural schematic view of a tip of a ureteral catheter for percutaneous nephroscopy surgery according to an embodiment of the present application;

fig. 3 is a schematic structural view of a fixing device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further 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 present application and are not intended to limit the present application. Also, the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1, a ureteral catheter 10 for percutaneous nephroscope surgery according to an embodiment of the present application includes a tube body 11, and a rotary joint male 12 is provided at a rear end of the tube body 11, and a fixing device 14 is elastically snap-fitted on the tube body 11. Referring specifically to fig. 1, the male swivel joint 12 is integrally formed with the rear end of the tubular body 11. The male connector 12 of the rotary connector is provided with external threads 121 for being in threaded connection with the female connector of the rotary connector of the infusion apparatus 20, so that the ureteral catheter 10 is directly connected with the infusion apparatus 20. The rotary connector male head 12 is a universal connector which is matched with the rotary connector female head of the infusion set 20, and the specific structure thereof is not described in detail here. Further, a protective cap 13 may be screwed on the male head 12 of the rotary joint. Before the ureteral catheter 10 is not used, the tail end of the ureteral catheter can be protected by the protective cap 13, and when the ureteral catheter is used, the protective cap 13 is unscrewed from the rotary joint male head 12.

Referring further to fig. 2, the head end of the tube 11 is designed as an open port 111, and a smooth blunt tip 112 is formed at the periphery of the open port 111 to facilitate smooth insertion of the ureteral catheter 10 without causing injury to the human body. The outer circumference of the tube body 11 is provided with a scale mark 113 at intervals of 1cm within a range of 50cm from the head end to the tail end, and the scale mark 113 is preferably an annular scale ring with a certain width formed on the outer circumference of the tube body 11 so as to be clearly visible.

Referring further to fig. 3, the fixing device 14 includes a first elastic jaw 141 and a second elastic jaw 142 arranged in parallel and an elastic connecting piece 143 connected between the first elastic jaw 141 and the second elastic jaw 142. The elastic connecting piece 143 divides the space between the first elastic jaw 141 and the second elastic jaw 142 into two left and

right clamping spaces

144 and 145. The tube body 11 is elastically clamped in one clamping space 144, and the other clamping space 145 is used for clamping the ureter, so that the ureter and the ureter catheter 10 can be simply fixed through the fixing device 14, the ureter and the ureter catheter 10 are prevented from falling off, and the ureter catheter can be easily and easily separated in a prone position, and the medical care workload is reduced. In particular, the first elastic clip 141, the second elastic clip 142 and the elastic connection piece 143 can be made of a suitable material, such as medical elastic rubber or silicone.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ureteral catheter for percutaneous nephroscope surgery comprises a catheter body and is characterized in that a rotary joint male head matched and connected with an infusion apparatus is arranged at the tail end of the catheter body, the rotary joint male head and the catheter body are integrally formed, and the rotary joint male head is provided with external threads used for being in threaded connection with a rotary joint female head of the infusion apparatus; still elasticity clamps a fixing device on the body, fixing device includes parallel arrangement's first elasticity clamping piece and second elasticity clamping piece and connects in the elastic connection piece between first elasticity clamping piece and second elasticity clamping piece, the elastic connection piece will two centre gripping spaces about separating between first elasticity clamping piece and the second elasticity clamping piece, the body clamps in a centre gripping space, and another centre gripping space is used for clamping the ureter.

2. The ureteral catheter for percutaneous nephroscopy procedures of claim 1, wherein a protective cap is further threadedly attached to the swivel male.

3. The ureteral catheter for percutaneous nephroscopy surgery according to claim 1, wherein the tip end of the tube body is provided as an open port, and a rounded blunt tip is formed at the outer periphery of the open port.

4. The ureteral catheter for percutaneous nephroscopy surgery according to claim 1, wherein the outer periphery of the tube body is provided with a scale mark every 1cm within a range of 50cm from the head end to the tail end.

5. The ureteral catheter for percutaneous nephroscopic surgery according to claim 4, wherein the scale mark is an annular scale ring formed at the outer periphery of the tube body.

6. The ureteral catheter for percutaneous nephroscopic surgery as recited in claim 1, wherein the first resilient clip, the second resilient clip, and the resilient connecting tab are each made of medical grade resilient rubber or silicone.