Flexible operation tool with multiple degrees of freedom

Abstract

The invention relates to a flexible operation tool with multiple degrees of freedom. The flexible operation tool comprises a flexible continuous body structure and a drive unit, wherein the flexible continuous body structure comprises a far-end structural body, a near-end structural body and a middle connecting body; the far-end structural body comprises a first far-end structure segment and a second far-end structure segment; the near-end structural body comprises a near-end structure segment, and second structure segment structural bones located on the near-end structure segment and second structure segment structural bones located on the second far-end structure segment are in fastening connection in one-to-one correspondence or are the same structural bones; the middle connecting body comprises channel fixing plates, channel fixing blocks, first structural bone guide channels and second structural bone guide channels; the drive unit comprises a near-end structure segment drive handle and a first far-end structure segment drive assembly, and the near-end structure segment drive handle is in fastening connection with near-end fixing discs; the first far-end structure segment drive assembly is located between the two channel fixing plates, and output ends adopt two sliders moving reversely linearly; one ends of first structure segment structural bones are in fastening connection with the sliders, the other ends penetrate the channel fixing blocks, the first structural bone guide channels and first far-end spacing discs sequentially and are in fastening connection with first far-end fixing discs.

Description

technical field [0001] The invention relates to a multi-degree-of-freedom flexible surgical tool, which belongs to the field of medical instruments. Background technique [0002] In the modern medical field, manual porous laparoscopic minimally invasive surgery has been widely used clinically. Such minimally invasive procedures have successfully reduced patients' postoperative pain, complications, recovery hospital stay, and improved postoperative scar appearance. In order to further reduce surgical trauma and reduce patient pain, researchers proposed single-port laparoscopic minimally invasive surgery. [0003] Compared with multi-hole laparoscopic minimally invasive surgery that requires multiple body surface incisions, all surgical tools in single-port laparoscopic minimally invasive surgery enter the abdominal cavity through one body surface incision (usually the navel), which further reduces the trauma to the patient. However, the configuration of such a single inlet ...

AI Technical Summary

Problems solved by technology

Manual single-port laparoscopic surgery based on traditional rigid surgical instruments has not been widely used in clinical practice due to complex hand-eye coordination requirements, limited flexibility of surgical tools, and small working range.

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