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Needle tip

A needle tip, fluid technology, applied in the needle tip field, can solve the problems of cost constraints, expensive needle manufacturing, etc.

Inactive Publication Date: 2009-12-23
SSB TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such atraumatic needles are expensive to manufacture
The cost of such needles limits their use to specific applications

Method used

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  • Needle tip
  • Needle tip
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Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The present invention provides a needle comprising: a needle tip portion incorporating at least one knife edge; at least one hole for substance delivery; a conduit portion in fluid communication with the hole, the needle being relatively strong and strong while providing a sharp point for Effective penetration. The needle is suitable for use in many types of applications involving fluid transfer. Such fluids may be liquids or gases, including solutions, colloids, and suspensions of particulate matter in fluids or gases. The advantageous features of the structure and composition of the needle make it strong, yet relatively atraumatic in use, less damaging to the material through which it penetrates, and cheap and easy to manufacture, making it suitable for delivering fluids to the body or to containers and transfer of fluids from the body or containers, among many other applications, will be apparent to the user.

[0023] The present invention incorporates the surprisi...

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PUM

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Abstract

The present invention provides a needle tip for needles of cannulae for penetrating materials and transferring fluids. The needle tip incorporates at least one conduit for transferring the fluids, at least one blade portion and at least one aperture in fluid communication with the conduit, an aperture being disposed generally opposite a blade portion. The at least one blade portion preferably comprises of concave surfaces joining in a cutting surface. A needle tip according to the invention may have more than one conduit, more than one blade portion, and more than one aperture. Preferably, the needle tip comprises of a tear-drop shape in cross section. The needle tip is simple to make and can be advantageously used in single-use applications. Preferably the needle tip is comprised of polymeric material. Preferably the needle tip is manufactured by fluid-assisted moulding.

Description

technical field [0001] The present invention relates to a tip for a needle or cannulae, in particular to a tip for a hypodermic needle or cannulae, and more particularly to a disposable polymer hypodermic needle or casing. Background technique [0002] The construction of needles or cannulas for the delivery of fluids (including substances such as gases, liquids, solutions, colloidal suspensions, etc.) requires that the needles can penetrate materials (such as tissue), conveniently facilitate the delivery of fluid substances, but make it difficult to There is minimal damage to the material, including damage to tissue, during penetration and retraction of the needle. In many applications, the needle is used only once, thereby avoiding cross-infection between subjects and avoiding the possibility of unpredictable health consequences. These performance requirements for effective use of the needle require the needle to be strong enough to penetrate effectively, but sized to mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158A61B17/34A61M5/32
CPCA61M5/3291A61M5/3286A61B17/3417
Inventor T·史密斯
Owner SSB TECH