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Artery puncture needle

A technique for arterial puncture and puncture needle, which is used in medical science, sensors, catheters, etc., can solve problems such as poor effect and easy prolapse, and achieve the effects of simple structure, accurate blood pressure monitoring, and convenient operation.

Active Publication Date: 2019-08-02
WENZHOU PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional way of fixing the indwelling tube with adhesive plaster is not effective, and it is easy to come out, which brings a lot of inconvenience to the medical staff

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Embodiments of the arterial puncture needle of the present invention are as follows: Figure 1-5 As shown: it includes a puncture needle assembly and an indwelling tube assembly. The puncture needle assembly includes a puncture needle 11 and a puncture needle seat 12 arranged at the rear end of the puncture needle 11. The indwelling tube assembly includes an indwelling tube 21 and an indwelling tube set behind the indwelling tube 21. The indwelling tube base 22 at the end, the indwelling tube 21 is movably sleeved on the puncture needle 11, the front end of the indwelling tube 21 is integrally formed with a plurality of claw arms 211, and the multiple claw arms 211 are evenly arranged on the indwelling tube 21 in the circumferential direction. At the front end, the indwelling tube 21 is provided with an axially penetrating guide groove 212 corresponding to the position of each claw arm 211 (see Figure 4 Dotted line), the front end of the guide groove 212 is provided wi...

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PUM

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Abstract

The invention discloses an artery puncture needle. The needle comprises a puncture needle assembly and an indwelling tube assembly, wherein the puncture needle assembly comprises a puncture needle anda puncture needle seat; the indwelling tube assembly comprise an indwelling tube and an indwelling tube seat; the indwelling tube movably sleeves the puncture needle; a plurality of claw arms are integrally formed at the front end of the indwelling tube; the plurality of claw arms are circumferentially and uniformly distributed at the front end of the indwelling tube; a guide groove is formed inthe indwelling tube; an opening is formed in the front end of the guide groove; a traction wire is arranged in the guide groove; the front end of the traction wire passes through the opening and is then connected with the outer side of the front end of the claw arms; the indwelling tube seat comprises a first base and a second base; the front end of the first base is fixed to the back end of the indwelling tube; a cavity communicated with the indwelling tube is formed in the back end of the first base; the front end of the second base is slidingly arranged in the cavity; the back end of the traction wire is connected with the second base; the second base comprises a through groove communicated with the indwelling tube. The artery puncture needle has the advantages that the structure is simple; the operation is convenient; the blood pressure monitoring effect is accurate; the artery puncture needle is less liable to fall off from the body; the fixation is firm and reliable.

Description

technical field [0001] The invention relates to an arterial puncture needle. Background technique [0002] The arterial puncture needle is used to puncture and collect arterial blood samples, and monitor the dynamic blood gas / electrolyte and arterial blood pressure of critically ill patients. The pain of the patient is beneficial to the dynamic observation of rescue, treatment and condition. [0003] The arterial puncture needle generally includes an indwelling tube and a puncture needle, and the indwelling tube is sleeved on the front end of the puncture needle. When performing arterial puncture, the puncture needle and the indwelling tube are inserted into the artery together, and then the puncture needle is pulled out so that the front end of the indwelling tube remains in the arterial vessel to facilitate follow-up operations such as invasive blood pressure monitoring or blood gas analysis. Especially for invasive blood pressure monitoring, since the head of the tradit...

Claims

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Application Information

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IPC IPC(8): A61B5/153A61B5/155
CPCA61B5/153A61B5/155A61B5/150992
Inventor 缪项慧
Owner WENZHOU PEOPLES HOSPITAL
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