CN202699837U - Air-bag catheter - Google Patents

Abstract

The utility model discloses an air bag urinary catheter, which relates to the technical field of medical devices, and comprises a catheter with a drainage cavity and a flushing cavity. The front part of the catheter is provided with an air bag, and the entrance of the flushing cavity is arranged The end of the tube wall of the catheter is provided with a guide hole communicating with the irrigation chamber between the inlet of the balloon and the irrigation chamber, and the guide hole is within 80 mm from the end of the balloon . The utility model provides an airbag urinary catheter which does not cause pain to the patient during extubation, improves the comfort of the patient, and reduces complications after the extubation of the patient.

Description

Balloon catheter

technical field

The utility model relates to the technical field of medical devices, in particular to a device clinically used for urinary catheterization of patients.

Background technique

Balloon catheter has been widely used clinically, but the existing three-chamber balloon catheter, that is, the balloon chamber, drainage chamber and flushing chamber are all arranged in a catheter, and these three chambers are respectively provided at the end of the catheter. There is a bifurcation, the balloon cavity ends at the front of the catheter and forms an air bag, and the front end of the catheter balloon is provided with an outlet of the irrigation chamber that communicates with the irrigation chamber, and the front end of the catheter balloon is also provided with a drainage chamber that communicates with the drainage chamber The inlet of the drainage cavity can allow urine to flow into the drainage cavity and be discharged from the body. When pulling out the urinary catheter, because the outer surface of the catheter is dry, it often rubs against the inner wall of the urethra, causing pain and even damage to the urethral mucosa. After the catheter is pulled out, the patient is prone to frequent urination, dysuria, hematuria, and urinary retention. About % of patients require recatheterization.

Contents of the invention

The problem to be solved by the utility model is to provide an air bag urinary catheter to solve the problem that the existing air bag urinary catheter causes pain to patients or even produces complications when pulled out.

In order to solve the above problems, the technical solution of the utility model is: the balloon catheter includes a catheter with a drainage chamber and a flushing chamber, the front part of the catheter is provided with an airbag, and the entrance of the flushing chamber is located at the catheter The end of the tube wall of the catheter is provided with a guide hole communicating with the irrigation chamber between the inlet of the balloon and the irrigation chamber, and the guide hole is within 80 mm from the end of the balloon .

Among the above technical solutions, a more specific solution may be: there are two guide holes, wherein the distance between the center of one guide hole and the end of the airbag is 35 mm, and the distance between the center of the other guide hole and the end of the airbag is 35 mm. The distance is 80mm. The diameter of the guide hole close to the airbag is 3mm, and the diameter of the guide hole far away from the airbag is 2mm.

Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

The balloon catheter is provided with a guide hole connected to the flushing chamber at a certain position from the front end of the catheter. When the balloon catheter is pulled out, the medical agent is first injected from the entrance of the flushing chamber at the end of the catheter. Make the drug flow out through the newly opened guide hole to lubricate the outer surface of the catheter, and have an anesthetic effect, reduce the friction between the outer surface of the catheter and the inner wall of the patient's urethra, which not only relieves the patient's pain when pulling out the balloon catheter, but also relieves pain. The inflammatory response of the local mucosa of the patient's urethra greatly reduces the chance of infection. Patients who use this balloon catheter according to the above methods generally believe that there is no discomfort or pain, which is conducive to the recovery of the patient's self-urination function, reduces the reinsertion rate of the catheter and urinary tract infection, and effectively prevents dysuria after extubation And the occurrence of urinary retention, has positive significance for the prevention of urinary system infection.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Detailed ways

The utility model is described in further detail below in conjunction with the implementation of the accompanying drawings:

The balloon catheter shown in Fig. 1 comprises a catheter 4 with a balloon chamber 1, a drainage chamber 2 and an irrigation chamber 3, each of which is provided with a bifurcation at the end of the catheter 4, and a balloon is provided at the front of the catheter 4 7. The air bag 7 is formed by the end of the air bag lumen 1 at the front of the catheter 4 . The front portion of the catheter 4 is provided with a drainage chamber inlet 9, and there are two drainage chamber inlets 9, which are respectively opened on both sides of the drainage chamber 2, and the drainage chamber inlet 9 can make urine flow into the drainage chamber 2 and be discharged from the body. The inlet of the flushing chamber is located at the end of the catheter 4, and a guide hole for communicating with the flushing chamber 3 is provided on the wall of the catheter 4 between the air bag 7 and the inlet of the flushing chamber. The guide hole is within the range of 80 mm from the end of the balloon 7. The range must be less than the length of the urethra of the human body, so as to ensure that the medical agent injected from the flushing chamber 3 can be fully lubricated in the urethra of the human body. There are two guide holes in this range, and the center of one guide hole 6 is connected to the end of the air bag 7. The distance L ₂ is 35 millimeters, and the distance L ₁ between the center of the other guide hole 5 and the end of the air bag 7 is 80 millimeters. The aperture of the guide hole 6 close to the air bag 7 is 3 millimeters, and the aperture of the guide hole 5 far away from the air bag 7 is 2 millimeters. When pulling out the balloon catheter, first inject the medical agent from the entrance of the irrigation cavity 3 at the end of the catheter (the agent is a mixture of 5ml of paraffin oil + 5mg of dexamethasone injection + 5ml of 2% lidocaine injection + 5ml of normal saline) A part of the medicament lubricates the outer surface of the catheter 4 through the newly added guide holes 5 and 6, and has an anesthetic effect, reducing the friction and pulling between the outer surface of the catheter 4 and the inner wall of the patient's urethra, which not only reduces the pain of the patient when pulling out the balloon catheter. Pain, and reduce the inflammatory response of the patient's local urethral mucosa. Another part of the medicament enters the bladder from the irrigation chamber outlet 8 at the front end of the catheter.

Claims (3)

1. Foley catheter, comprise the conduit with drainage lumens and flushing chamber, the front portion of described conduit is provided with air bag, the entrance in described flushing chamber is located at the end of described conduit, it is characterized in that: offering the guide hole that is communicated with described flushing chamber on the tube wall of described conduit between the entrance in described air bag and described flushing chamber, described guide hole is in the scope of terminal 80 millimeters of the described air bag of distance.

2. Foley catheter according to claim 1, it is characterized in that: have two described guide holes, the distance of the center of one of them guide hole and described air bag end is 35 millimeters, and the distance of the center of another guide hole and described air bag end is 80 millimeters.

3. Foley catheter according to claim 2 is characterized in that: the aperture near the described guide hole of described air bag is 3 millimeters, and the aperture of the described guide hole that the described air bag of distance is far away is 2 millimeters.

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