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Detachable instrument structure

An instrument and instrument rod technology, applied in the field of detachable instrument structure, can solve the problems of unfavorable sterilization of instrument seats, low instrument service life, easy wear and tear of wire transmission, etc., and achieves reduction of operation cost, simple structure, increased reliability and use effect of life

Active Publication Date: 2021-11-26
NANJING TUODAO MEDICAL TECHNOLOGY CO LTD
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Problems solved by technology

The instrument also includes an instrument base, an instrument shaft and an instrument head. The interior adopts a steel wire transmission structure, which has the advantages of stable connection and smooth transmission. bacteria
Because the steel wire transmission is easy to wear and loose, the transmission accuracy will decrease after repeated use, so the service life of the instrument is low. Usually, the instrument needs to be replaced after 10 times of use, resulting in high surgical costs.
Moreover, when the existing device structure is sterilized, sterilized or replaced, the entire device needs to be disassembled, which increases the maintenance cost.

Method used

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Embodiment Construction

[0065] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0066] figure 1 It is an overall view of the device structure of the present invention. Such as figure 1 As shown, the detachable instrument structure of the present invention includes a non-detachable part and a detachable component 5, wherein the non-detachable part is installed on the corresponding interface of the RCM arm through screws, including a fixed seat 1, a drive component 2, a transmission component 3 and a locking and unlocking component 4 The detachable component 5 can replace different types of instruments (such as scissors, grasping forceps, needle holders, electric hooks, etc.) according to different surgical requirements, or replace new instruments after the service life of the instruments reaches the requirement.

[0067] Such as figure 2 , 3 As shown, the fixing seat 1 is a T-shaped hollow structure, and a threaded hol...

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Abstract

The invention discloses a detachable instrument structure, which comprises an instrument base and a detachable assembly; the instrument base is fixedly installed on a mechanical arm; a driving motor is arranged in the instrument base; a first transmission pull rod is installed with the driving motor in a matched mode through a transmission piece; the first transmission pull rod is driven by the driving motor to move in the axial direction; the detachable assembly comprises a hollow instrument rod and an instrument head hinged to the tail end of the hollow instrument rod; a second transmission pull rod hinged to the end of the instrument head is arranged in the instrument rod; and the first transmission pull rod and the second transmission pull rod are in butt joint and disassembly through butt joint pieces arranged at the corresponding matched ends of the first transmission pull rod and the second transmission pull rod. According to the invention, the instrument base is structurally decoupled from the instrument rod and the instrument head; only the instrument rod and the instrument head can be replaced; the instrument structure is simplified; the size is smaller; and installation, cleaning and sterilization are more convenient.

Description

technical field [0001] The invention relates to the field of surgical robots, in particular to a detachable instrument structure. Background technique [0002] Now more and more surgical robots are used in practice. The end execution part of the surgical robot needs to be removed from the robotic arm for disinfection and sterilization because it is very close to the surgical area. [0003] The end-execution parts of existing surgical robots basically adopt the same or similar structure as Da Vinci, which are composed of motor bases, sterile adapter plates and instruments, and the instruments and motor bases are detachably connected. The instrument also includes an instrument base, an instrument shaft and an instrument head. The interior adopts a steel wire transmission structure, which has the advantages of stable connection and smooth transmission. bacteria. Because the steel wire transmission is easy to wear and loose, the transmission accuracy will decrease after repeat...

Claims

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Application Information

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IPC IPC(8): A61B34/30
CPCA61B34/30A61B34/70
Inventor 程敏李志江
Owner NANJING TUODAO MEDICAL TECHNOLOGY CO LTD
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