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Epidural anesthesia catheter supported by liquid pressure

An anesthesia catheter and liquid pressure technology, applied in the medical field, can solve the problems of catheter discount, catheter placement difficulty, dura mater puncture, etc., and achieve the effect of convenient operation and simple catheter structure

Inactive Publication Date: 2018-04-06
邸亚平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An epidural anesthesia catheter is used in this anesthesia method. The common epidural anesthesia catheter is a steel wire reinforced type, which is prone to difficulty in catheter placement, catheter discount, tissue or blood vessel damage, dural puncture, and catheter pullout. Difficulty and other issues

Method used

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  • Epidural anesthesia catheter supported by liquid pressure
  • Epidural anesthesia catheter supported by liquid pressure
  • Epidural anesthesia catheter supported by liquid pressure

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Embodiment Construction

[0012] In conjunction with the accompanying drawings, an epidural anesthesia catheter supported by liquid pressure, one end of the catheter is connected with a liquid inlet device, the other end is connected with a liquid outlet device, both the liquid inlet device and the liquid outlet device are equipped with pressure control valves, and the catheter is controlled by Hard tubes are alternately connected with flexible tubes at intervals to form a structure similar to corrugated tubes. The pressure control valves of the liquid inlet device and the liquid outlet device are closed when the pressure is lower than a certain value, and open when the pressure is higher than this fixed value. When liquid is passed into the conduit and the pressure of the liquid is just below a certain value, the pressure control valves of the liquid inlet device and the liquid outlet device are closed, and the liquid in the conduit makes the flexible tube wall in a tensioned state.

[0013] When in u...

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Abstract

The invention discloses an epidural anesthesia catheter supported by liquid pressure. The structure is that one end of the catheter is connected with a liquid inlet device, and the other end is connected with a liquid outlet device, and both the liquid inlet device and the liquid outlet device are equipped with pressure control devices. The valve and the conduit are made of hard tubes and flexible tubes alternately connected at intervals. Its advantage is that the structure of the catheter is simple, there is no need to install a steel wire in the catheter, and the operation is convenient. During the process of being inserted into the epidural space, the catheter is filled with liquid, and the flexible tube wall of the catheter is in a state of tension, so that the catheter has The ability to overcome axial resistance and the flexibility to bend and turn avoids strong impact and damage to these parts when the catheter encounters blood vessels, tissues or the walls of the epidural space during insertion. When the fluid in the catheter is emptied The catheter becomes soft so that it can be pulled out very easily.

Description

technical field [0001] The invention belongs to the medical field, and in particular relates to a device for injecting a medium into or onto a human body. Background technique [0002] Epidural anesthesia, that is, epidural nerve block anesthesia, is a method of anesthesia in which local anesthetics are injected into the epidural space to temporarily paralyze part of the spinal nerves and anesthesia occurs in the areas dominated by them. This anesthesia method makes the operation site and adjacent tissues and organs feel no pain, but the patient is in a conscious state, can inject medicine continuously, and is easy to manage during the operation. It is a widely used anesthesia method in clinic. [0003] An epidural anesthesia catheter is used in this anesthesia method. The common epidural anesthesia catheter is a steel wire reinforced type, which is prone to difficulty in catheter placement, catheter discount, tissue or blood vessel damage, dural puncture, and catheter pullo...

Claims

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Application Information

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IPC IPC(8): A61M25/00A61M31/00A61M19/00
CPCA61M25/0021A61M19/00A61M25/0043A61M25/0075A61M31/00A61M2025/0007
Inventor 邸亚平
Owner 邸亚平
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