A multi-segment adjustable curved surgical instrument

Abstract

The invention relates to a surgical instrument with multiple bendable sections. The surgical instrument comprises a functional instrument component, an instrument shaft and a control handle. The instrument shaft comprises an outer tube, a functional instrument control part and a bend angle adjustment unit arranged in the outer tube. The control handle comprises a bend angle adjustment unit operation component, the bend angle adjustment unit is provided with a plurality of fixed bend angle sections, and a straight section is formed between each two adjacent fixed bend angle sections. The far end of the outer tube is provided with rigidity sections and one or more bendable sections, and each rigidity section is formed on the outer tube between each two adjacent bendable sections. The surgical instrument with the multiple bendable sections has the advantages that a visual field of an operator is widened, operation angles are increased, collision interference of surgical instruments is reduced, positions of instrument rods are easy to control, and accordingly surgical difficulty is lowered.

Description

technical field [0001] The present invention relates to a medical surgical instrument, more specifically, to a multi-segment adjustable curved surgical instrument used in minimally invasive surgery (such as laparoscopic surgery) or other forms of surgery or medical procedures. Background technique [0002] Since French doctors successfully performed the first laparoscopic cholecystectomy in 1987, minimally invasive surgery represented by laparoscopic surgery has experienced more than 20 years of development and has formed a relatively independent discipline, deriving thoracoscopy and pelvic endoscopy. , Arthroscopy and a series of minimally invasive surgeries. At present, minimally invasive surgery has become the most cutting-edge and most complex technology in surgery. A large number of advanced equipment, materials and instruments were first applied in this field. Minimally invasive surgery is also an important direction for the development of surgery in the 21st century. ...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, the instruments used in minimally invasive surgery lack flexibility and are difficult to handle and use during surgery

Although various laparoscopic instruments for minimally invasive surgery have been developed over the years to overcome the above shortcomings, for example, the patent application number is 200810138394.1, and the patent name is curved rigid laparoscopic operating instruments, which discloses a multi-segment curved minimally invasive Surgical instrument, the instrument has a simple structure and can be tilted at any angle, but the bending section of the instrument changes from a straight line to a curved shape with the change of temperature. In the actual operation process, the bending does not follow the operator's will And bending, and the temperature of the human body is basically maintained in a temperature range, so the surgical instrument will bring great inconvenience to the doctor during the operation, increase the operation time, and be unfavorable for actual operation; It is "201010234653.8", and the patent name is multifunctional laparoscopic surgery bendable surgical forceps, which discloses a surgical instrument that can be adjusted by wire control. It can be controlled by the operator, and it can rotate 360 ​​degrees, but it has only one bend. In minimally invasive surgery, it is easy to cause collisions and interference between instruments, making it difficult for doctors to operate

For another example, the U.S. Patent No. US2011 / 0144659A 1 discloses a multi-segment adjustable bending surgical instrument, but the structure of the instrument is more complicated, the price is expensive, and it is not suitable for general use.

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