A flexible surgical tool system driven by a double-ended screw

Abstract

The invention relates to a flexible surgical tool system driven by a double-ended screw, which includes a flexible continuum structure and a driving unit; the flexible continuum structure includes a distal structure, a proximal structure and a middle connecting body; the distal structure includes at least A distal segment, the distal segment includes the distal spacer disc, distal fixation disc, and structural bone; the proximal structure includes a number of proximal segments equal to the number of distal segments, and the proximal segment includes the proximal Spacer plate, proximal fixed plate and structural bone; the central connecting body includes two channel fixing plates and a structural bone guiding channel arranged between the two channel fixing plates; the driving unit includes a driving unit fixing plate arranged in front of the middle connecting body, A plurality of linear motion mechanisms for converting the rotation input of the motor into linear motion output are arranged between the drive unit fixing plate and the channel fixing plate. The output end of the linear motion mechanism is connected with one end of the driving bone, and the driving bone passes through the proximal end The spacer disc is fastened to the proximal fixed disc at the other end.

Description

technical field [0001] The invention relates to a flexible surgical tool system driven by a double-ended screw rod, which belongs to the field of medical instruments. Background technique [0002] Porous laparoscopic minimally invasive surgery has occupied an important position in surgical operations because of its small incision and fast postoperative recovery. The existing Intuitive Surgical company's da Vinci surgical robot assists doctors to complete multi-hole laparoscopic minimally invasive surgery, which has achieved great commercial success. [0003] After multi-port laparoscopic surgery, minimally invasive surgery has developed single-port laparoscopic surgery and non-invasive surgery through natural orifice, which are less invasive to patients and have higher postoperative output. However, in single-port laparoscopic surgery and non-invasive surgery through the natural orifice, all surgical instruments, including the visual lighting module and surgical operation a...

AI Technical Summary

Problems solved by technology

Since the wire rope must be kept in a continuous tension state through the pulley, this driving method is difficult to achieve further miniaturization of surgical instruments, and it is also difficult to further improve the movement performance of the instruments

[0004] Although Intuitive Surgical recently launched the da Vinci Single-Site surgical robot, which transforms the original rigid surgical instrument into a semi-rigid surgical instrument, and adds a pre-bent sleeve, which improves the movement performance of the surgical instrument to a certain extent, but Still unable to fundamentally solve the problems faced by traditional microsurgical instruments

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