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Hydrophilic interface for holding biological tissues

A biological tissue and hydrophilic technology, applied in the direction of instruments, computer materials science, molecular design, etc., can solve problems such as tissue damage and slippage

Active Publication Date: 2021-03-16
易波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a hydrophilic interface for holding biological tissue, which is used to solve the technical problem that the existing surgical instruments easily cause tissue damage and slippage when clamping biological tissue

Method used

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  • Hydrophilic interface for holding biological tissues
  • Hydrophilic interface for holding biological tissues
  • Hydrophilic interface for holding biological tissues

Examples

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Effect test

Embodiment 1

[0045] In the present invention, the maximum slipping force is defined as the minimum clamping force that can hold the biological tissue along the vertical direction of the tissue surface and prevent the tissue from slipping off from the forceps, and the minimum damage force is defined as the ability to clamp the living tissue along the vertical direction of the tissue surface. The above-mentioned biological tissue is the minimum clamping force that causes tissue damage; since the maximum slipping force and the minimum damage force are related to the clamping force, the clamping force is defined as the force that pulls up or unfolds the tissue horizontally.

[0046] The source of the adsorption force of the hydrophilic interface is the liquid film tension, the viscosity-dependent hydrodynamic pressure and the intermolecular force (Van der Waals force), among which the liquid film tension plays a major role, and the liquid film tension is affected by the structure of the hydrophi...

Embodiment 2

[0051] Embodiment 2 is an extended embodiment of the embodiment. It differs from Embodiment 1 in that it introduces the manufacturing method of the hydrophilic interface used to absorb biological tissue, and introduces the hydrophilic interface used to absorb biological tissue. The interface has been refined, among them, the hydrophilic interface fabrication method for adsorbing biological tissue, such as figure 1 As shown, it specifically includes the following steps:

[0052] (1) Obtain the maximum slipping force and the minimum damage force for holding the biological tissue:

[0053] Step 1: Use the clamp head to clamp the biological tissue with a clamping force (such as 1N) of the initial strength along the vertical direction of the surface of the biological tissue, and observe whether the clamp head under this force can clamp the biological tissue;

[0054] 1A: If the biological tissue cannot be clamped (that is, when there is a visible movement between the forceps head ...

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Abstract

The invention discloses a hydrophilic interface for holding biological tissues, the hydrophilic interface is composed of a plurality of nano particles, and the liquid membrane tension calculated by the structural parameters of the hydrophilic interface meets the following conditions: the liquid membrane tension is greater than the maximum slipping force for holding the biological tissues and is less than the minimum damage force for holding the biological tissues; by precisely designing structural parameters of the hydrophilic interface, the liquid film tension of the manufactured hydrophilicinterface is precisely controlled between the maximum slipping force and the minimum damage force, so that the liquid membrane tension generated by the hydrophilic interface realizes stable and damage-free clamping and pulling of the interface and human tissues; the technical problem that when an existing surgical instrument clamps biological tissue, tissue damage and slipping are likely to be caused is solved.

Description

technical field [0001] The invention relates to the field of manufacturing a hydrophilic interface of surgical instruments, in particular to a hydrophilic interface for absorbing biological tissues. Background technique [0002] Different from open surgery and traditional endoscopic surgery, the surgical robot completes the surgical operation through the mapping action of the mechanical device. The surgeon cannot directly touch the tissue, and cannot provide real-time feedback on the force load on the hydrophilic interface of the tissue during the operation through the limb receptors. Only through visual feedback and The operating experience of the surgeon judges the stress on the tissue. There is a lack of force feedback, and the force load output cannot be adjusted in a timely and accurate manner, which may easily lead to irreversible damage such as tissue tearing and bleeding. Therefore, how to eliminate the abnormal mechanical contact of the instrument-tissue hydrophilic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16C60/00G16C10/00G16C20/50
CPCG16C60/00G16C10/00G16C20/50
Inventor 易波
Owner 易波
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