CN201564572U - Improved lumbar catheterization puncture needle - Google Patents

Abstract

An improved lumbar catheterization puncture needle belongs to a catheterization puncture needle used for lumbar punctures, and mainly comprises a needle bed and a needle tube. The needle point is bended to one side, the internal orifice of the needle point is polished to be a round corner, and the external orifice is sharp. By adopting the improved lumbar catheterization puncture needle, when a catheter is fed in or withdrawn, mechanical injury cannot be caused to the catheter, thereby completely avoiding the medical accidents caused by broken tubes when the catheter is reset.

Description

Improved lumbar vertebra is put the pipe puncture needle

Technical field

This utility model relates to medical apparatus and instruments, puts the pipe puncture needle especially for the lumbar puncture art.

Background technology

Operation is not a strange thing to everybody, most operations all need anesthesia, and epidural anesthesia is wherein a kind of, and most of operation all can be finished under this anesthesia, but since existing epidural anesthesia to put the design of pipe puncture needle imperfect, can not move back pipe unsatisfied the time and reset putting pipe, can only move back puncture needle, repeated puncture may increase the weight of the site of puncture damage again, it is unexpected that this medical treatment of disconnected pipe (conduit is left in patient's body) also might take place, and brings misery and injury to sufferer.

The utility model content

The purpose of this utility model provides a kind of conduit forward and back of being convenient to, and can not cause the modified model lumbar vertebra of mechanical damage to put the pipe puncture needle to conduit.

This novel purpose is achieved in that a kind of improved lumbar vertebra puts the pipe puncture needle, comprises needle stand, needle tubing, and the needle point internal orifice polishing of needle tubing is fillet.

At the existing sharp keen problem of puncture needle internal orifice, make improvements, promptly be that the internal orifice of puncture needle is polished into blunt mouthful by sharp keen, just cutting never again (anesthesia or drain) conduit just causes medical contingency never again.

Compared with prior art, this novel beneficial effect is:

1, simple and practical, effectively solve the problem that clinical paracentesis exist

Only need the syringe needle internal orifice of existing puncture needle is polished, make orifice become blunt mouthful (being rounding), move back the drawback that causes the conduit damage when pipe is reset thereby solved existing puncture needle.

2, be applicable in hygiene medical treatment apparatus industry and apply, and pipe is put in the waist pond that can be used for anesthesia and waist pond drain (treatment of subarachnoid hemorrhage) under the dura mater, the operation of waist pond peritoneal shunt.

Description of drawings

Fig. 1 is this novel structure chart;

Fig. 2 is the enlarged drawing of tip portion shown in Figure 1.

The specific embodiment

Fig. 1 illustrates, and basis is novel mainly to be made up of needle stand 1 and needle tubing 2.The metal needle tubing is embedded in the needle stand front portion.The needle point of needle tubing (referring to Fig. 2) internal orifice is a rounding, be fillet by sharp keen polishing promptly, and the end opening of fillet and pin lower edge collar extension has certain distance.Needle stand can adopt plastics or metal to make.Each piece puncture needle has the interior stamen that is complementary with it, can adopt plastics or metal to make, and the breach or the marking of indication needle point direction arranged on the needle stand of each piece puncture needle.

Claims (1)

1. an improved lumbar vertebra is put the pipe puncture needle, comprises, needle stand (1), needle tubing (2) is characterized in that: the needle point internal orifice polishing of described needle tubing (2) is fillet.

Images