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Venous indwelling needle

A technology for venous indwelling needles and needles, which is applied in the direction of needles, flow monitors, hypodermic injection devices, etc. It can solve problems such as breakage and easy bending of catheters, and achieve the effect of avoiding catheter blockage and bending

Inactive Publication Date: 2016-12-21
上海上医康鸽医用器材有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a kind of intravenous indwelling needle

Method used

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Examples

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Embodiment Construction

[0037] A preferred embodiment will be given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0038] Such as Figure 1-3 As shown, an intravenous indwelling needle includes a connecting sleeve 5, a catheter 8, an elastic element 7, and a needle assembly. In this embodiment, a rivet is selected as the connecting sleeve 5, and the connecting sleeve 5 is made of stainless steel. In other embodiments Other parts with the same effect can also be selected as the connecting sleeve 5 , and a spring is selected as the elastic element 7 in this embodiment, and other parts with the same effect can also be selected as the elastic element 7 in other embodiments. The needle assembly includes a needle head 9 and a needle base 4, the needle base 4 is fixed on one end of the catheter base 6, one end of the needle head 9 is fixed on the needle base 4, and the other end extends into the elastic element 7 through the co...

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PUM

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Abstract

The invention provides a venous indwelling needle. The venous indwelling needle comprises a connecting sleeve, a catheter, an elastic element and a needle assembly, wherein the needle assembly comprises a syringe needle and a needle holder, one end of the syringe needle is fixed on the needle holder, the other end penetrates through the connecting sleeve and extends into the elastic element, the elastic element is connected to the connecting sleeve, and the connecting sleeve is sleeved with the catheter. The elastic element is mounted in the catheter of the venous indwelling needle, so that catheter breakage caused by the fact that the needle tip punctures the inner wall of the catheter due to bending and violation operation of the catheter is effectively prevented, and the threat to life safety of a patient due to catheter obstruction, infusion leakage and retention of broken catheter in a blood vessel is avoided.

Description

technical field [0001] The invention relates to a vein indwelling needle. Background technique [0002] The key component of the intravenous indwelling needle is the catheter around the stainless steel needle, which is made of plastic, usually FEP. FEP has the advantages of good blood compatibility, chemical inertness, self-lubricating property, and easy processing and molding. At the same time, it has high hardness, which is beneficial to venipuncture. However, high stiffness is both an advantage and a disadvantage of FEP catheters. [0003] At present, domestic venous indwelling needle manufacturers mostly use FEP to prepare indwelling needle catheters. Due to the high hardness, the recovery of the catheter after being deformed by an external force is poor, and it is easy to bend and cause the catheter to be blocked, and the catheter must be replaced. Moreover, sometimes nurses do not strictly follow the operating specifications of intravenous indwelling needles, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158A61M5/175
CPCA61M5/158A61M5/16813A61M5/16881A61M2205/33
Inventor 梅志华胡冠男朱孙瑜
Owner 上海上医康鸽医用器材有限责任公司
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