Hydrophilic interface manufacturing method and system for holding biological tissues

A technology of biological tissue and manufacturing method, applied in the direction of instruments, computer materials science, molecular design, etc., can solve the problems of tissue damage, slippage, etc., and achieve the effect of non-damage clamping and pulling, and precise design

Active Publication Date: 2021-03-16
易波 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method and system for manufacturing a hydrophilic interface for holding biological tissue, which is used to solve the technical problem of tissue damage and slippage easily caused by existing surgical instruments when holding biological tissue

Method used

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  • Hydrophilic interface manufacturing method and system for holding biological tissues
  • Hydrophilic interface manufacturing method and system for holding biological tissues
  • Hydrophilic interface manufacturing method and system for holding biological tissues

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Embodiment 1

[0027] 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.

[0028] 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

[0035] Embodiment 2 is an extended embodiment of the embodiment, which is different from the embodiment 1 in that the manufacturing method of the hydrophilic interface for absorbing biological tissue is refined, and specifically includes the following steps:

[0036] (1) Obtain the maximum slipping force and the minimum damage force for holding the biological tissue:

[0037] Step 1: Use the pliers to clamp the biological tissue with a clamping force (such as 1N) of the initial force along the vertical direction of the surface of the biological tissue, and observe whether the forceps under this force can hold the biological tissue;

[0038] 1A: If the biological tissue cannot be clamped (that is, when there is a visible movement between the forceps head and the tissue), gradually increase f on the basis of the initial force α (such as 0.5N), and increase f with each α The final clamping force clamps the biological tissue until increasing f α The final clamping force clamps t...

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Abstract

The invention discloses a hydrophilic interface manufacturing method and system for holding biological tissues. The method comprises the steps: obtaining the maximum slippage force and the minimum damage force of a biological tissue in advance, and selecting a force value which is greater than the maximum slippage force and is smaller than the minimum damage force as the tension of an optimized liquid film; determining an optimized structure parameter value corresponding to the optimized liquid film tension according to the relationship between the structure parameter of the hydrophilic interface and the liquid film tension, and manufacturing the hydrophilic interface according to the optimized structure parameter value, thereby realizing accurate design of the structure parameter of the hydrophilic interface. The liquid film tension of the manufactured hydrophilic interface is accurately controlled between the maximum slippage force and the minimum damage force, so that the liquid film tension generated by the hydrophilic interface realizes stable and non-damage clamping and pulling of the interface and human tissues, and the technical problems of tissue damage and slippage easilycaused when an existing surgical instrument clamps biological tissues are solved.

Description

technical field [0001] The invention relates to the field of manufacturing a hydrophilic interface of surgical instruments, in particular to a method and system for manufacturing 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 contac...

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 易波蒋娟朱晒红王延磊王国慧凌颢李政雷阳
Owner 易波
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