Sponge-based variable-stiffness natural orifice surgery instrument support structure and use method

Abstract

The invention provides a sponge-based variable-stiffness natural orifice surgery instrument support structure and a use method. The support structure comprises a variable-stiffness sponge pipeline, ahydrophobic and breathable film and a gas delivery device, wherein the stiffness of the variable-stiffness sponge pipeline decreases with increase of the content of water vapor. According to the sponge-based variable-stiffness natural orifice surgery instrument support structure and the use method, due to the good stiffness and flexibility conversion characteristic, the variable-stiffness sponge pipeline can be changed into the flexible state when assembled with a variable-stiffness surgery instrument to facilitate assembly, protect human tissue from being scratched by a natural orifice surgery instrument pipeline when introduced into a natural orifice with the surgery instrument pipeline, cannot increase extra resistance and reduce pose adjustment difficulty during surgery pose adjustmentand changed into a stiff state during surgery operation to provide a stable operation platform to guarantee surgery operation stability and accuracy.

Description

technical field [0001] The disclosure relates to the technical field of natural orifice surgical instruments, in particular to a sponge-based variable stiffness natural orifice surgical instrument support structure and a method of use. Background technique [0002] Natural orifice transluminal endoscopic surgery (NOTES) is a new research hotspot in the surgical field after multi-hole minimally invasive surgery and single-hole minimally invasive surgery. The bladder and other natural orifices of the human body enter the abdominal cavity to treat diseases. It is a scarless operation without incisions on the body surface. In the process of solving the patient's illness, minimally invasive surgery through the natural orifice does not leave an incision on the surface of the human body, which reduces surgical trauma and postoperative pain, increases the cosmetic effect, and achieves better physiological and psychological minimally invasive effects. [0003] Most of the surgical i...

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Problems solved by technology

[0004] However, in the process of realizing the present disclosure, the inventors of the present disclosure found that in the process of approaching the surgical site through the natural orifice of the human body, the flexibility of the current surgical instrument pipeline is not enough, which will cause damage to the natural orifice, and before the operation In the process of adjusting the posture of surgical tools, it is also difficult to reach certain postures due to insufficient flexibility; at the same time, a stable operating environment is required during surgical operations, and surgical instrument pipelines are required to provide stable and reliable support. The rigidity of the current surgical instrument pipeline is not enough to ensure the stability and accuracy of the operation

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