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Catheter needle locking and catheter hub unlocking mechanism

A catheter assembly and catheter technology, applied in the direction of catheters, guide needles, needles, etc., can solve the problems of incomplete reliability and difficult device operation.

Inactive Publication Date: 2004-06-30
新安都公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although, this provides an improvement over the existing state of the art with respect to protection from needle stick injuries, Dombrowski et al. require a frictional connection between the other parts in order to operate, which generally makes operation of the device rather difficult, and actually not entirely reliable

Method used

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  • Catheter needle locking and catheter hub unlocking mechanism
  • Catheter needle locking and catheter hub unlocking mechanism
  • Catheter needle locking and catheter hub unlocking mechanism

Examples

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Embodiment Construction

[0033] Referring now to Figure 1 to Figure 5 The illustrated embodiment, to illustrate the present invention in detail, in particular, discloses a needle lock and catheter hub release mechanism 10 as shown in FIG. 1 . The leading or forward end 12 of the needle or cannula protection lumen 14 includes a chamber 16 containing a pouch or bellows 18, shown in a folded or compressed state. Extending centrally and forwardly outwardly from lumen 14 through guide sleeve 20 is a cannula or hollow needle 22 suitable for forming a venipuncture on a patient, which also passes through a lock 26 formed in accordance with the present invention. Center hole 24. The extended cannula 22 is then passed through a catheter sleeve 28 having a luer lock flange 30 surrounding a head 32 and liner 34 fitted therein. The leading end (not shown) of the cannula or hollow needle 22 is adapted to be introduced into the patient's body for venipuncture, so as to pass through a catheter surrounding and alon...

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PUM

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Abstract

A catheter needle tip protector and a safety mechanism which provides fail / save protection to clinical personnel against the possibility of accidental punctures by a used intravenous (IV) needle through the provision of automatic catheter needle tip protecting structure which becomes operative upon withdrawal of the needle from the body of a patient.

Description

technical field [0001] The present invention relates generally to venous catheterization devices, and more particularly, to a catheter needle tip protector and a safety mechanism that protects clinical personnel from the use of a used venous needle through the automatic catheter needle tip protection structure. (IV) Provides fail / rescue protection against possible accidental stick injuries from the needle, the protective structure being activated when the needle is removed from the patient. [0002] In addition, the present invention relates to a conventional automatic needle needle protection and catheter sleeve release mechanism which simultaneously protects the tip of the needle when the needle is removed from the patient and maintains the catheter in place for venipuncture and releases the needle when it is removed from the patient. When the tubing is fully retracted, release the Luer locking lug mounted on the catheter sleeve to place the needle tip in a fully protected s...

Claims

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Application Information

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IPC IPC(8): A61M5/32A61M5/158A61M25/00A61M25/06
CPCA61M25/0631A61M5/3275A61M2005/325A61M25/0625A61M25/00
Inventor D·L·波格特
Owner 新安都公司