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A kind of multifunctional nerve block puncture needle

A nerve block and puncture needle technology, applied in the directions of puncture needles, needles, trocars, etc., can solve the problems of local anesthetic poisoning, can not completely rule out nerve damage, etc., to facilitate judgment, avoid intravascular injection, and ensure safety Effect

Active Publication Date: 2019-01-29
THE FIRST AFFILIATED HOSPITAL OF GUANGZHOU UNIV OF CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultrasound-guided peripheral nerve block can reduce the incidence of related complications, but the possibility of nerve injury and local anesthetic poisoning cannot be completely ruled out

Method used

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  • A kind of multifunctional nerve block puncture needle
  • A kind of multifunctional nerve block puncture needle
  • A kind of multifunctional nerve block puncture needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The multifunctional nerve block puncture needle shown in Figure 1 includes a needle tube 1 and a needle head 2 located at the front end of the needle tube 1. The tail end of the needle tube 1 is connected with a metal bracket 3. The bracket 3 is in a cylindrical shape and has a connecting needle tube 1 inside. The channel of the inner cavity is on the same axis as the inner cavity of the needle tube 1 . The outer periphery of the bracket 3 is covered with an elastic pressing body 4, and the local anesthetic 5 is loaded between the elastic pressing body 4 and the outer wall of the bracket 3, and the bracket 3 is provided with a hole 6 for introducing the local anesthetic 5 into the channel.

[0021] When puncturing, as shown in Figure 2, the index finger and thumb of the hand holding the needle press the elastic pressing body 4 to the support 3, and the local anesthetic is squeezed out from the hole 6. After the puncture needle penetrates the skin, the fingers are release...

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Abstract

The invention discloses a multifunctional nerve blocking puncture needle which comprises a needle tube and a needle head located at the front end of the needle tube. A support is connected to the tail end of the needle tube. A channel communicated with an inner cavity of the needle tube is formed inside the support. The support is sleeved with an elastic pressing body. A local anesthetic is contained between the elastic pressing body and the outer wall of the support. A hole for guiding the local anesthetic into the channel is formed in the support. During puncture, the local anesthetic is squeezed into the channel by pressing the elastic pressing body through fingers, and the negative pressure effect is formed between the elastic pressing body and the support after the fingers are loosened. If the needle head is punctured into a blood vessel, blood inside the blood vessel flows into the elastic pressing body so that judgment can be performed conveniently by medical workers, injection into the blood vessel is avoided, and therefore safety needed before injection can be ensured. The multifunctional nerve blocking puncture needle can be applied to nerve blocking puncture.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a multifunctional nerve block puncture needle. Background technique [0002] Peripheral nerve block is a commonly used anesthesia method in clinical practice. It is welcomed by patients and surgeons because it has less interference to patients and quick recovery after surgery. The development of nerve stimulator and B-ultrasound technology has further promoted its clinical application. Ultrasound-guided peripheral nerve block can reduce the incidence of related complications, but the possibility of nerve injury and local anesthetic poisoning cannot be completely ruled out. There have been case reports of endovascular puncture, nerve injury, and pneumothorax in ultrasound-guided supraclavicular brachial plexus blocks. It is worth noting that the stimulation current of the nerve stimulation needle within 0.2mA-0.5mA does not rule out intraneural injection. If the nerve swells whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/32A61M19/00A61M5/48A61B17/34A61N1/36
Inventor 王勇黎玉辉陈佩玲马武华
Owner THE FIRST AFFILIATED HOSPITAL OF GUANGZHOU UNIV OF CHINESE MEDICINE
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