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Disposable double-cavity ureteral catheter

A ureteral, disposable technology, applied in the field of ureteral catheters, can solve the problems of inconvenient and safe operation, automatic pressure relief and drainage, etc., and achieve the effects of convenient observation, smooth water in and out, and simple operation

Pending Publication Date: 2021-08-24
NANTONG YIKAI MEDICAL DEVICES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a disposable double-lumen ureteral catheter. By setting independent water inlet and outlet channels, the traditional ureteral catheter can only be injected with water. When the pressure of the renal pelvis exceeds the safe range, it cannot automatically release the pressure and drain the water, making the operation insufficient. Simple and safe technical issues

Method used

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  • Disposable double-cavity ureteral catheter
  • Disposable double-cavity ureteral catheter
  • Disposable double-cavity ureteral catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] refer to Figure 1-4 The present invention provides a disposable double-lumen ureteral catheter. The ureteral catheter 10 is a dual-channel catheter. The end of the ureteral catheter 10 is respectively connected with a water inlet catheter 20 and an outlet water catheter 21 that communicate with and match the dual channels.

[0029] In this embodiment, the end of the water inlet conduit 20 can be provided with a water inlet connector 201, which can be specifically a reed connector or other connectors with a sealing structure. The water connector 201 is used for injecting physiological saline with an external syringe to produce artificial hydronephrosis. The water outlet conduit 21 is provided for drainage and pressure relief, and is used to discharge gravel or accumulated water in the renal pelvis to realize continuous water circulation at low pressure in the renal pelvis during the operation, making the operation easier and safer.

[0030] Specifically, the inside of t...

Embodiment 2

[0040] refer to figure 2 , the ureteral catheter 10 in the present invention adopts a double-channel variable-diameter ureteral catheter, that is, the diameter of the end of the ureteral catheter 10 is greater than the diameter of the front end, so even if the ureteral catheter 10 adopts a dual-channel structure, its outer diameter will increase slightly, but due to the double-channel variable The front end of the diameter ureteral catheter is thinner, which is conducive to advancing the implantation of the ureter. An overflow hole 241 is opened on the side of the front end of the ureteral catheter 10, and the overflow hole 241 communicates with the water inlet channel 11 and the water outlet channel 12 separately, so as to improve the delivery efficiency of water in and out.

[0041] refer to Figure 4 , the disposable double-lumen ureteral catheter provided by the present invention, in other embodiments, its ureteral catheter 10 can also adopt an integrated dual-channel va...

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Abstract

The invention discloses a disposable double-cavity ureteral catheter, and belongs to the technical field of ureteral catheters. Two independent channels are respectively arranged in the catheter along the axial direction, and the disposable double-cavity ureteral catheter is characterized in that the channels are respectively a water inlet channel and a water outlet channel, and the tail end of the ureteral catheter is externally connected with a water inlet catheter and a water outlet catheter. The water inlet guide pipe is communicated with the water inlet channel, the water outlet guide pipe is communicated with the water outlet channel, a water inlet connector is arranged at the tail end of the water inlet guide pipe, and the water outlet guide pipe is used for discharging broken stones or accumulated water in the renal pelvis. The double-cavity ureteral catheter can be used in cooperation with a percutaneous kidney guiding sheath, the drainage of water and calculi is facilitated, a pressure measuring catheter can detect the pressure in the pelvis in real time and can conduct drainage and pressure relief, so that the low-pressure continuous water circulation of the pelvis in an operation is achieved, and the operation is simpler, more convenient and safer.

Description

technical field [0001] The invention belongs to the technical field of ureteral catheters, in particular to a disposable double-cavity ureteral catheter. Background technique [0002] With the improvement and improvement of X-ray, B-ultrasound, CT positioning and puncture positioning technology, the improvement of lithotripsy equipment, the accuracy of puncture is getting higher and higher, and the surgical complications are getting less and less. more and more widely. The development of vascular minimally invasive interventional surgery provides safety guarantee for percutaneous nephroscopic surgery, and most of the kidney stone operations are solved by percutaneous nephroscopic surgery. The proportion of open surgery is also decreasing. The natural lumen of the ureter is traditionally given a single-channel ureteral catheter before puncture during percutaneous nephroscopic surgery, as water injection, artificial hydronephrosis, puncture positioning, and a normal saline a...

Claims

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Application Information

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IPC IPC(8): A61M25/14A61B17/22A61B90/00
CPCA61B17/22A61B2017/22038A61B2017/22082A61M25/0026A61M25/0043A61M25/0068A61M25/007A61B90/06A61B2090/064
Inventor 金卫金家浩秦晓鹏魏先锋张纲军
Owner NANTONG YIKAI MEDICAL DEVICES CO LTD
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