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Flexible minimally invasive surgical instruments based on natural orifice

A natural orifice and minimally invasive surgery technology, applied in the field of minimally invasive surgical medical equipment, can solve the problems of less freedom at the end of the instrument, small working space, and insufficient operating force, and achieve short recovery time, easy control, and convenient operation Effect

Active Publication Date: 2018-04-10
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation, since the movement of the end of the surgical instrument and the movement of the hand-held part of the instrument have a special mapping relationship, in order to meet the action requirements of different surgical operation tasks (clamping, suturing, knotting, etc.), the doctor needs to hold the surgical instrument in a wide range. Movement reduces the flexibility of the end of the instrument to perform surgical actions. At the same time, long-term and large-scale operations make doctors prone to fatigue, which virtually increases the difficulty of surgery.
Limited by the size limit of natural orifice surgical instruments, the main problems of existing products are that the number of degrees of freedom at the end of the instrument is small, and the working space is small, resulting in inflexible operation, difficulty in completing complex operations during surgery, and insufficient operating force. Difficulty achieving wound closure

Method used

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  • Flexible minimally invasive surgical instruments based on natural orifice
  • Flexible minimally invasive surgical instruments based on natural orifice
  • Flexible minimally invasive surgical instruments based on natural orifice

Examples

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] as attached figure 1 The shown flexible minimally invasive surgical instrument based on the natural orifice of the present invention includes: an operating handle 100, a wrist driving device 200, a flexible catheter 300, a flexible wrist 400, and an end effector 500, which as a whole can be applied to the abdominal cavity, chest cavity, etc. , Urology, gynecology and other fields of minimally invasive surgery. During the operation process, the minimally invasive surgical intelligent instrument passes through the poking hole on the patient's body surface, and the doctor holds the instrument and enters the body to perform the operation.

[0028] control Figure 2a , Figure 2b , Figure 2c , Figure 2d , the flexible minimally invasive surgical instrument based on the natural cavity is held by the doctor, which can rea...

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Abstract

The invention discloses a flexible minimally invasive surgery instrument based on a natural orifice. The flexible minimally invasive surgery instrument comprises an operation handle, a wrist driving device, a connecting catheter, a flexible wrist part and a tail end executing device. The flexible minimally invasive surgery instrument can be integrally applied to minimally invasive surgery in the fields of abdominal cavity, thoracic cavity, urination, gynecology and the like. In the surgery implementation process, the minimally invasive surgery intelligent instrument passes through a trocar hole formed in the body surface of a patient, and a doctor holds the instrument by hand, and puts the instrument into the body to implement the surgery operation; the instrument is held by the doctor by hand; all operations, including the instrument tail end opening and closing movement, of an ordinary minimally invasive surgery instrument can be realized; meanwhile, the three-freedom-degree movement (the pitching movement, the swinging movement and the auto-rotation movement) of the tail end of the instrument can also be realized through controlling the operation handle and the wrist driving device. The space multi-freedom-degree surgery actions can be output by the instrument, the action is flexible, and the operation force is great; the instrument is more suitable for minimally invasive surgery with complicated actions.

Description

technical field [0001] The invention relates to a minimally invasive surgical medical device, in particular to a minimally invasive surgical instrument based on a natural orifice. Background technique [0002] During minimally invasive surgery, doctors perform surgical tasks with the help of slender minimally invasive surgical instruments. One end of the surgical instrument is held by the doctor, and the other end is inserted into the body through a tiny incision on the surface of the human body for surgical operations. Therefore, the surgical instrument is the only part that is in contact with the diseased tissue of the human body, and it is also the only tool that directly performs surgical actions. During the operation, since the movement of the end of the surgical instrument and the movement of the hand-held part of the instrument have a special mapping relationship, in order to meet the action requirements of different surgical operation tasks (clamping, suturing, knott...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/00
CPCA61B17/00234A61B2017/00238A61B2017/00318A61B2017/0034A61B2017/00367A61B2017/0046
Inventor 王树新张国凯
Owner TIANJIN UNIV
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