Medical conductive gel and preparation method thereof

A technology of conductive gel and flocculant, which is applied in the field of medical conductive gel and its preparation, can solve the problems of narrow application range of liquid conductive gel, inability to collect weak signals, volatile service life, etc., and achieve strong penetrating power and wet Effect, low production cost, excellent wettability effect

Inactive Publication Date: 2020-02-04
SOUTH SUZHOU MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the liquid conductive adhesive has a narrow application range and requires complex structural design support, and is volatile and has a short service life and short storage time, which is not conducive to industrialization
The solid conductive gel is convenient for industrial die-cutting, but its conductivity is poor and the contact resistance is high. Electrodes prepared using this type of conductive hydrogel are noisy and cannot be used for weak signal acquisition.

Method used

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  • Medical conductive gel and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0016] This embodiment provides a medical conductive gel and a preparation method thereof. The medical conductive gel of this embodiment specifically includes potassium chloride, glycerin, gelatin and deionized water.

[0017] The preparation method of the medical conductive gel of this embodiment is as follows:

[0018] (1) Add 100 parts of water into the reactor and raise the temperature to 50-70°C; after the temperature rise is completed, stir it at 150 rpm, and add 4 parts of potassium chloride into the reactor (keep stirring and keep constant temperature) , stirring for 15 minutes;

[0019] (2) Mix 14 parts of gelatin and 20 parts of glycerin, stir to form a mixed solution, then slowly add it into the reaction kettle, stir at a low speed while adding, the stirring speed is 30 rpm, after the addition is completed, proceed to 200 rpm Stir for 2 hours;

[0020] (3) Inject the synthesized solution into a mold, cool at room temperature for 10 hours, and form a conductive ge...

Embodiment 2

[0022] This embodiment provides a medical conductive gel and a preparation method thereof. The medical conductive gel of this embodiment specifically includes potassium chloride, glycerin, gelatin and deionized water.

[0023] The preparation method of the medical conductive gel of this embodiment is as follows:

[0024] (1) Add 100 parts of water into the reactor and raise the temperature to 50-70°C; after the temperature rise is completed, stir it at 150 rpm, and add 5 parts of potassium chloride into the reactor (keep stirring and keep constant temperature) , stirring for 15 minutes;

[0025] (2) Mix 14 parts of gelatin and 20 parts of glycerin, stir to form a mixed solution, then slowly add it into the reaction kettle, stir at a low speed while adding, the stirring speed is 30 rpm, after the addition is completed, proceed to 200 rpm Stir for 2 hours;

[0026] (3) Inject the synthesized solution into a mold, cool at room temperature for 10 hours, and form a conductive ge...

Embodiment 3

[0028] This embodiment provides a medical conductive gel and a preparation method thereof. The medical conductive gel of this embodiment specifically includes potassium chloride, glycerin, gelatin and deionized water.

[0029] The preparation method of the medical conductive gel of this embodiment is as follows:

[0030] (1) Add 100 parts of water into the reactor and raise the temperature to 50-70°C; after the temperature rise is completed, stir it at 150 rpm, and add 6 parts of potassium chloride into the reactor (keep stirring and keep constant temperature) , stirring for 15 minutes;

[0031] (2) Mix 14 parts of gelatin and 20 parts of glycerin, stir to form a mixed solution, then slowly add it into the reaction kettle, stir at a low speed while adding, the stirring speed is 30 rpm, after the addition is completed, proceed to 200 rpm Stir for 2 hours;

[0032] (3) Inject the synthesized solution into a mold, cool at room temperature for 10 hours, and form a conductive ge...

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Abstract

The invention belongs to the technical field of medical conductive materials, and particularly relates to medical conductive gel and a preparation method thereof. The medical conductive gel is prepared from the following components in percentage by mass: 0.5-5% of a flocculant, 1-10% of a salt electrolyte, 20-40% of a water-retaining agent, 1-15% of a gelatinizing agent, and 40-70% of water. By dispersing the flocculant, the water-retaining agent, the salt electrolyte and the gelatinizing agent in the water and through the synergistic effect of the water, the water-retaining agent and the saltelectrolyte as well as the flocculant and the gelatinizing agent, the medical conductive gel has excellent biocompatibility, low contact impedance and low noise, and can be used in the field of medical electrodes.

Description

technical field [0001] The invention belongs to the technical field of medical conductive materials, and in particular relates to a medical conductive gel and a preparation method thereof. Background technique [0002] As an intermediary between the human body and medical electrodes, medical conductive adhesive has important application value in the fields of electrocardiogram, electroencephalogram and other medical devices. Among them, the conductivity of the conductive adhesive directly affects the test results. In addition, the medical conductive adhesive must have good biocompatibility, that is, no cytotoxicity, no irritation to human skin, and no sensitization. [0003] Conductive adhesives are divided into liquid conductive adhesives and solid conductive adhesives. The liquid medium has strong penetrating power and moisturizing effect on the skin. With the monitoring, the penetration of the liquid medium increases, the conductivity improves, the impedance decreases, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/075C08L89/00C08K5/053A61B5/00
CPCC08J3/075A61B5/6832C08J2389/00C08K5/053
Inventor 章祥高林明范哲权
Owner SOUTH SUZHOU MEDICAL TECH CO LTD
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