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Dilating-cracking catheter having biocompatibility

A biocompatibility and catheter technology, applied in the direction of catheters, balloon catheters, dilators, etc., can solve the problems of not being able to pass through the endoscope, the connection is not firm, and the material is easy to deform, so as to save medical expenses and reduce treatment costs , Improve the effect of crack expansion

Inactive Publication Date: 2016-11-30
NANJING SHUANGWEI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of balloon are: the film layer is thick, latex and non-woven materials have a large friction force on the patient, and it is easy to cause damage; the material is opaque and cannot be assisted by an endoscope; the connection between the latex material and the main body is not firm , the material is easily deformed and ruptured, filling the patient's body and forming a major safety hazard

Method used

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  • Dilating-cracking catheter having biocompatibility
  • Dilating-cracking catheter having biocompatibility
  • Dilating-cracking catheter having biocompatibility

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 , figure 2 As shown, a biocompatible expansion catheter includes a main body 10 made of transparent PVC material, at least one TPU transparent inflation balloon 20 with a thickness of 0.05-0.2mm, and the front end communicates with an inflation balloon lumen at least one liquid injection cavity; the front end of the main body 10 is a blunt round part 12 with a liquid discharge port 11, and the inflatable balloon 20 is cylindrical or fusiform or ellipsoidal in the filled state, and the thickness of the balloon is 0.05mm, at least No deformation or bursting will occur under the condition of continuous filling at 4 atmospheric pressure.

[0033]During production and processing, the TPU film can be subjected to negative pressure evacuation-forming process, so that it can be formed into a contracted shape that reduces patient damage: the inflated balloon forms several pleats 3 around the main body 10 when it is emptied, and all pleats 3 They are all stack...

Embodiment 2

[0036] further combined image 3 , Figure 4 As shown, this embodiment is basically the same as Embodiment 1, the difference is that: the inflatable balloon 20 is composed of an anterior capsule 210 and a posterior capsule 220 . The width of the anterior capsule 210 is 30-100 mm, the width of the posterior capsule 220 is 30-100 mm, and the distance between the anterior capsule 210 and the posterior capsule 220 is in the range of 3-5 mm. The main body of the anterior capsule cavity is provided with 1 to 4 front liquid injection ports 211 and communicates with the first liquid injection cavity 212; the main body of the posterior capsule cavity is provided with 1 to 4 rear liquid injection ports 221 and connected to the second The liquid injection chamber 222 is in communication. The first liquid injection cavity 212 and the second liquid injection cavity 222 are formed in the side wall of the main body 10 and extend from the rear of the main body to form the first liquid injec...

Embodiment 3

[0038] combine Figure 1 to Figure 4 As shown, this embodiment is basically the same as Embodiment 2, the difference being that there are three front liquid injection ports 211 and three rear liquid injection ports 221 . The front and back two of the three front liquid injection ports 211 are respectively arranged at the front end and the rear end of the anterior capsule part of the main body; the front and rear two of the three rear liquid injection ports 221 are respectively arranged at the front end and the rear end of the rear bag part of the main body This design facilitates the removal of liquid in the inflated balloon.

[0039] The side wall of the main body is also provided with a flushing chamber 232 , the flushing chamber 232 forms a flushing port 13 at the blunt round portion of the front end of the main body, and the rear end of the flushing chamber 232 extends from the rear of the main body 10 to form a flushing pipe 233 .

[0040] The flushing port 13 is differe...

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Abstract

The invention discloses a dilating-cracking catheter having biocompatibility. The dilating-cracking catheter comprises a transparent main catheter body, at least one dilating balloon and at least one liquid filling cavity with the front end communicated with the inner cavity of one dilating balloon. The front end of the main catheter body is a blunt round portion provided with a liquid discharging port. The dilating balloon is a transparent high-pressure-resistant film balloon made from a TPU material and is columnar, shuttle-shaped or ellipsoidal in a full-filling state. The dilating-cracking catheter is made from the TPU material having biocompatibility, combines the shape and folding design of the dilating balloons and decreases hurts of patients to the most degree. The dilating-cracking catheter is wholly transparent and is suitable for positioning assisted by an endoscope. Liquid filling, flushing and positioning functions are achieved by forming multiple cavities in the wall of the main catheter body, and the consistency and aesthetics of products are ensured.

Description

technical field [0001] The invention relates to the field of medical device consumables, in particular to a biocompatible dilatation catheter for treatment of dilated prostate. Background technique [0002] Prostatic hyperplasia has become a common disease that threatens the health of elderly men. The so-called benign prostatic hyperplasia is mainly due to the hyperplasia of the prostate tissue, resulting in an increase in its volume, which in turn squeezes the surrounding organs, resulting in a smaller and narrower urinary tract, resulting in dysuria, Symptoms such as frequent nocturia, prolonged urination time, and feeling of incomplete urination, there is currently no effective preventive method for this disease. The methods for the treatment of benign prostatic hyperplasia include drug therapy, open surgical treatment and minimally invasive treatment. Medication can slow the progression of BPH, and some drugs can even reverse BPH in some patients. However, drug treatme...

Claims

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Application Information

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IPC IPC(8): A61M29/02A61M25/10
CPCA61M29/00A61M25/1011
Inventor 钦湘吴勇谢伟娟
Owner NANJING SHUANGWEI BIOTECH