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Anti-breakage sheathing canal and conveying system with same

An anti-breakage and sheath technology, which is applied in the direction of catheters, trocars, balloon catheters, etc., can solve the problem of weak tensile strength of the sheath in the axial direction, and achieve the effect of improving strength and avoiding breaking

Active Publication Date: 2014-10-01
VENUS MEDTECH (HANGZHOU) INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in order to ensure the compliance of the expansion section after loading the device, in many cases, the expansion section is a pure plastic sheath without adding a mesh reinforcement layer that will affect the compliance and diameter. The expansion section is still the axial direction of the entire sheath. Tensile Weak Links

Method used

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  • Anti-breakage sheathing canal and conveying system with same
  • Anti-breakage sheathing canal and conveying system with same
  • Anti-breakage sheathing canal and conveying system with same

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Embodiment Construction

[0032] The present invention will be further explained below in conjunction with specific examples.

[0033] figure 1 It shows a schematic structural view of the sheath tube and the sheath core in the prior art, and only the connecting portion between the expansion section and the tube body is shown in the figure.

[0034] figure 1 As can be seen in the figure, the sheath includes a tube body 1 and an expansion section 2 connected to the distal side of the tube body 1 . The channel in the sheath tube is used to pass through the sheath core, and the sheath core includes a core tube 3, a fixed head 4 and a guide head fixed at the distal end of the core tube ( figure 1 (not shown in ), between the fixed head 4 and the guide head and the inner wall of the expansion section 2 is an accommodation chamber 5 for placing implantation instruments. This prior art can be used in the present invention as far as the sheath core itself is concerned.

[0035] The expansion section 2 is a tu...

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Abstract

The invention discloses an anti-breakage sheathing canal. The anti-breakage sheathing canal comprises a canal body and an expansion section used for accommodating an implanted instrument, wherein one side of the far end of the canal body is butted with the expansion section, at least two reinforcing ribs are axially arranged in the canal wall of the expansion section, and the expansion section extends out from the near ends of the reinforcing ribs and is fixedly connected into the canal wall of the canal body; the material of the reinforcing ribs is Kevlar fibres; the diameters of the reinforcing ribs are 0.03-0.12mm; the quantity of the reinforcing ribs is 2-4. According to the anti-breakage sheathing canal disclosed by the invention, the strength of the expansion section is improved while the overall compliance of the sheathing canal is kept, thus pulling breakage for the sheathing canal while the implanted instrument is released can be avoided.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an anti-break sheath with improved strength and a delivery system with the sheath. Background technique [0002] Interventional surgery causes little trauma to the human body and is less invasive. It is a medical technology that has been rapidly emerging and promoted in recent years. A channel is established between the lesion site and the external operation terminal to introduce diagnostic and therapeutic instruments, drugs, implanted devices, etc. to the lesion site. The interventional diagnosis and treatment sheath has a distal end and a proximal end. The distal end is loaded with therapeutic drugs and instruments and can enter the vascular system of the human body, and the proximal end is connected with an operating handle. When in use, the guide wire track is usually pre-established, and the distal end of the sheath tube or connected with other auxiliary...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61B17/00
CPCA61B2017/00243A61M2025/0024A61M25/0052A61B17/3468A61M25/005A61M25/0074A61M39/08
Inventor 曾敏张志飞
Owner VENUS MEDTECH (HANGZHOU) INC
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