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Self-lubricating ultrasonic sound guide pad and preparation method thereof

A self-lubricating, ultrasonic technology, applied in the direction of echo/ultrasonic imaging agents, film/sheet adhesives, non-polymer organic compound adhesives, etc., can solve the problem of decreased lubricating performance of ultrasonic pads, inconvenient inspection process, Problems such as difficulty in moving the probe can be achieved to improve accuracy, avoid coupling agent loss, and avoid medical waste

Active Publication Date: 2022-03-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The viscous sound-conducting pad will bond the ultrasonic probe to the human skin, making it difficult to move the probe; while the slippery sound-conducting pad is difficult to combine well with the ultrasonic probe, making the inspection process inconvenient; in addition, there are currently two types of homogeneous ultrasonic probes, slippery and viscous. None of the pads can remain lubricated with the skin for a long time, and the lubricating performance of the ultrasonic pad continues to decline after sliding for a period of time

Method used

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  • Self-lubricating ultrasonic sound guide pad and preparation method thereof
  • Self-lubricating ultrasonic sound guide pad and preparation method thereof

Examples

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preparation example Construction

[0022] The invention provides a method for preparing a self-lubricating ultrasonic sound-conducting pad, comprising:

[0023] applying an adhesive to the first surface of the adhesive hydrogel layer;

[0024] applying an adhesive to the second surface of the slippery hydrogel layer;

[0025] bonding the first surface of the viscous hydrogel layer coated with an adhesive to the second surface of the slippery hydrogel layer coated with an adhesive to obtain a self-lubricating ultrasonic sound-conducting pad;

[0026] Wherein, the adhesive includes an adhesive and a dispersion, and the adhesive includes any one or more of polyurethane, isooctyl acrylate, methyl cyanoacrylate, octyl cyanoacrylate or ethyl cyanoacrylate. In combination, the dispersion includes alkenyl organics.

[0027] In some embodiments of the present invention, the mass ratio of the adhesive in the adhesive to the dispersion is (1 to 2.5): (3.5 to 5), for example, it can be 1:3.5, 1.5:3.5, 2:3.5 , 2.5:3.5, 1...

Embodiment 1

[0078] The preparation method of the self-lubricating ultrasonic sound-conducting pad in this embodiment may comprise the following steps:

[0079] (1) Preparation of viscous hydrogel layer:

[0080] Step S11: Add 20g of monomer to 100mL of deionized water and stir until completely dissolved, then add 12mL of viscosity modifier, 1mL of initiator, 7.6mL of crosslinking agent, and 82μL of catalyst in sequence, and stir well to obtain a viscous hydrogel prepolymer solution.

[0081] The monomer can include acrylamide; the viscosity modifier can include glycerin; the crosslinking agent can include N,N-methylenebisacrylamide solution, N,N-methylenebisacrylamide solution in N,N-methylene The mass percentage of bisacrylamide can be 0.2wt%; Initiator can comprise ammonium persulfate solution, and the volume concentration of ammonium persulfate in the ammonium persulfate solution can be 1mol / L; Catalyst can comprise tetramethylethylenediamine, and the tetramethylethylenediamine Methy...

Embodiment 2

[0099] The difference between the preparation method of the self-lubricating ultrasonic sound-conducting pad in this example and the preparation method in Example 1 lies in the preparation of the slippery hydrogel layer.

[0100] In this embodiment, the preparation of the slippery hydrogel layer may include the following steps:

[0101] Step S51: Add 5 g of the first material into deionized water, heat and stir at 150° C. until completely dissolved to obtain a first hydrogel solution. The first material may include agar.

[0102] Step S52: adding 1 g of the second material to the first hydrogel solution, heating and stirring at 150° C. until completely dissolved, to obtain a third hydrogel solution. The second material may include sodium alginate.

[0103] Step S53: adding 1 g of the toughening material to the third hydrogel solution, heating and stirring at 150° C. to obtain a second slippery hydrogel prepolymer solution. Toughening materials can include lignin.

[0104]S...

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Abstract

The invention provides a self-lubricating ultrasonic sound conducting pad and a preparation method thereof. The preparation method of the self-lubricating ultrasonic sound conducting pad comprises the following steps: coating a first surface of a viscous hydrogel layer with an adhesive; an adhesive is smeared on the second surface of the smooth hydrogel layer; bonding the first surface of the viscous hydrogel layer coated with the adhesive with the second surface of the slippery hydrogel layer coated with the adhesive to obtain the self-lubricating ultrasonic sound guide pad; wherein the adhesive comprises an adhesive and a dispersion, the adhesive comprises any one or a combination of more of polyurethane, 2-ethylhexyl acrylate, methyl cyanoacrylate, octyl cyanoacrylate or ethyl cyanoacrylate, and the dispersion comprises an alkene alkane organic matter.

Description

technical field [0001] The invention relates to the field of ultrasonic equipment, in particular to a self-lubricating ultrasonic sound-conducting pad and a preparation method thereof. Background technique [0002] Ultrasound probing is a common detection technique that can examine most parts of the body. However, during the inspection process, the air between the ultrasound probe and the human skin will hinder the transmission of ultrasound waves into the human body, affecting the ultrasound imaging effect. The current method is to apply a layer of couplant between the human body and the ultrasound probe. However, the couplant is a liquid, which is easy to lose when subjected to pressure, which affects the effect of ultrasound imaging; at the same time, the couplant will remain on the skin surface, bringing patients a poor medical experience. In the prior art, homogeneous acoustic pads are also used for ultrasound examinations. For homogeneous acoustic pads, there are cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/30C09J4/02C08J3/075C08J3/24C08J3/28C08L33/26C08L5/04C08L97/00A61K49/22
CPCC09J7/30C09J4/00C08J3/075C08J3/24C08J3/28A61K49/22C08J2333/26C08J2305/04C08J2497/00C08J2405/04
Inventor 张凯朱文博渐南南
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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