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Two-step flexible top end dilater and the method for preparing the same

A manufacturing method and technology of dilators, applied in the field of medical devices, can solve the problems of falling off of flexible tips and reducing product safety, and achieve the effect of ensuring pushing force, strong flexibility and reducing damage

Inactive Publication Date: 2007-09-26
DONGGUAN KEWEI MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some products also weld or glue flexible tips on rigid materials to meet the requirements for product flexibility and rigidity, but the flexible tips are in danger of falling off, which reduces the safety of the product

Method used

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  • Two-step flexible top end dilater and the method for preparing the same
  • Two-step flexible top end dilater and the method for preparing the same
  • Two-step flexible top end dilater and the method for preparing the same

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Embodiment Construction

[0024] Hereinafter, specific embodiments of the present invention will be described in conjunction with the accompanying drawings.

[0025] The structure of the double-stage flexible tip dilator of the present invention includes a tube body (1) and a tip (2), and different rigid materials are layered to form the tube body (1) and tip (2) of a slender coreless tube. The segmental connection of different rigid materials in the prior art is changed to a layered connection. This innovation fundamentally solves the problem of welding or bonding flexible tips on rigid materials in existing products, which may cause the flexible tips to fall off and cause The problem of clinical safety incidents. The tube body (1) and the tip (2) formed by layers of materials with different rigidities are integrally formed integral structures.

[0026] In the double-stage flexible tip dilator of the present invention, the materials with different rigidities are layered and thermally fused.

[0027]...

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PUM

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Abstract

A dual-step flexible sharp tension device and relative production relate to an expander and relative production a microtrauma insert medicine. Different rigid material layers form a tube body and a sharp of a long non-corn tube which the body and the sharp are integrated, with increased rigidity from inner to outer layer. The sharp is formed by mechanically non-corn grinding tube body, while the sharp comprises a flexible material and a rigid material in gradient distribution from the head. The production comprises that extruding two layers to form a tube body of expander, non-corn grinding into sharp and smooth treating the sharp. The invention can meet the flexibility and rigidity demands of expander, while the sharp head is flexible to reduce the hurt on luminal membrane, and the back of the sharp has high rigidity to confirm enough propelling force, and integrate the sharp with tube body to avoid dropping in operation, to improve safety.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a two-stage flexible tip dilator used in minimally invasive interventional medicine and a manufacturing method thereof. Background technique [0002] Minimally invasive medical interventional therapy is to introduce specific surgical instruments through small skin incisions or direct puncture methods to treat the lesion accordingly. It has the characteristics of small wound, high efficiency, safety, less complications, short recovery period, strong repeatability, and no damage to the original anatomical structure. [0003] The dilator involved in the present invention is a device used in minimally invasive interventional therapy, and is a flexible tubular device used to expand small percutaneous incisions or percutaneous puncture channels that enter blood vessels or human body lumens. The method of use is as follows: in minimally invasive interventional therapy, a specif...

Claims

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Application Information

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IPC IPC(8): A61B17/94A61B1/32
Inventor 祝鸿董俊翀
Owner DONGGUAN KEWEI MEDICAL INSTR
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