Urethral dilator

A urethral expansion and dilator technology, applied in the field of medical devices, can solve problems such as inconformity with the curved structure of the urethra, urethral injury, and inability to deal with multi-segment urethral strictures, achieving the effects of relieving obstruction, reducing urethral injury, and reducing urethral discomfort

Pending Publication Date: 2019-01-11
CHILDRENS HOSPITAL OF CHONGQING MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conical dilator patented by this invention is also unable to deal with multi-segment urethral strictures
More importantly, the main structure of the above-mentioned invention patents is straight, which does not conform to the curved structure of the urethra itself, which is likely to cause urethral damage

Method used

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  • Urethral dilator

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Embodiment Construction

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] A urethral dilator, comprising a dilator body, the dilator body is a double-layer hollow structure composed of an inner layer 1 of a hard structure and an outer layer 2 of a flexible structure that can expand and contract, wherein the inner layer 1 is connected at both ends Tube structure, the front end of the outer layer 2 is connected with the front end of the inner layer 1 to form a blunt conical head seal, the rear end of the outer layer 2 is provided with an injection port 3, and a semi-closed cavity is formed between the inner and outer layers.

[0027] In this double-layer hollow structure, the inner layer 1 of the hard tube structure can not only ensure the shape of the dilator, but also realize the insertion of the guide wire; The dilation function of the indwelling catheter. The flexible outer layer 2 is a semi-closed cavi...

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Abstract

The urethral dilator comprises a dilator body, wherein the dilator body is a double-layer hollow structure body composed of a hard structure inner layer and an expandable and contractable flexible structure outer layer, wherein the inner layer is a pipe body structure with two ends communicated with each other, the outer layer front end is connected with the inner layer front end to form a blunt cone head for sealing, the outer layer rear end is provided with an injection port, and a semi-closed cavity is formed between the inner and outer layers. The inner layer of the rigid tube structure can not only ensure the shape of the expander, but also realize the insertion of the guide wire; the flexible outer layer is a semi-closed cavity, which can be filled with liquid or gas through the injection port at the rear end, so that the main structure of the expander can be expanded to achieve the purpose of expanding the narrow, and the expander can be expanded with different diameters withoutchanging the expander. The whole structure is simple, which solves the problem that the existing dilator cannot handle multi-segment urethral stricture.

Description

technical field [0001] The invention belongs to the field of medical equipment, in particular to a urethral dilator. Background technique [0002] Urethral stricture is a common disease of the urinary system, more common in men, clinically common: (1) congenital urethral stricture, such as congenital urethral orifice stricture, etc.; (2) inflammatory urethral stricture, often caused by urethral lumen infection or injury (3) Traumatic urethral stricture, usually due to pelvic fracture, perineal straddle injury and stabbing, etc., which lead to urethral injury or urethral rupture; (4) Postoperative urethral stricture after hypospadias, mostly due to postoperative anastomotic scar hyperplasia, cause urethral stricture. Symptoms of urethral stricture can vary according to the degree of stricture: 1) dysuria, progressive dysuria, thinning urine stream, sometimes interrupted urination, dripping urination, or even inability to urinate; 2) urinary retention; 3) pressure Urinary in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M29/04A61B1/307A61B5/107A61B18/22
CPCA61M29/02A61B1/307A61B5/1072A61B5/1076A61B18/22A61M2210/1078A61M2210/005
Inventor 吴盛德龙春兰
Owner CHILDRENS HOSPITAL OF CHONGQING MEDICAL UNIV
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