Clamping device for minimally invasive surgery

Abstract

The invention discloses a clamping device for minimally invasive surgery. The clamping device comprises a clamping part, a control part and an operation part, wherein the clamping part is arranged at the front end of the clamping device and comprises at least two clamping arms, and each clamping arm is further provided with a locking sliding groove and a hinge hole; the clamping part further comprises at least one first connecting rod, a front-end pin, a hinge pin, a rear-end pin, a small magnet and a barrel front part, the front-end pin is used for guiding the locking sliding groove, the hinge pin is used for hinging the first connecting rod with the clamping arm, and the rear-end pin is used for connecting the control part with the first connecting rod; the control part is connected with the clamping part and the operation part and is used for linking opening, closing and locking of the clamping part according to the action of the operation part, the control part further comprises a cylinder rear part, and the cylinder rear part is used for being connected with a bourdon tube; the operating part comprises a handle sliding body and a handle front end, the handle sliding body is fixedly connected with the rear end of the control part, and the handle front end is connected with the handle body. The control structure of the clamping device is more reasonable and concise, the design cost is reduced, and the product competitiveness is improved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a clamping device for minimally invasive surgery. Background technique [0002] At present, the digestive endoscopy technology in the medical field is developing rapidly, and the detection rate of gastrointestinal lesions is also getting higher and higher. In quite a lot of ESD operations (Endoscopic Submucosal Dissection), it is inevitable to cut the diseased tissue , the traditional cutting is operated by the external operating handle of the intubated gastroscope, the lesion is in a natural loose state, and there is no clamping and lifting device to fix the lesion, which makes it difficult for doctors to cut the lesion. [0003] In view of the above problems, the current medical device industry uses independent string magnetic beads to cover endoscope titanium clips, and uses external magnetic field traction to cut the lesion. However, this product is inconvenient to operate....

AI Technical Summary

Problems solved by technology

[0002] At present, the digestive endoscopy technology in the medical field is developing rapidly, and the detection rate of gastrointestinal lesions is also getting higher and higher. In quite a lot of ESD operations (Endoscopic Submucosal Dissection), it is inevitable to cut the diseased tissue , the traditional cutting is operated by the external operating handle of the intubated gastroscope, the lesion is in a natural loose state, and there is no clamping and lifting device to fix the lesion, which makes it difficult for doctors to cut the lesion

[0003] In view of the above problems, the current medical device industry uses independent string magnetic beads to cover endoscope titanium clips, and uses external magnetic field traction to cut the lesion. However, this product is inconvenient to operate. It is sent to the body through the endoscope channel, and then the titanium is clamped to the body. Through the external handle operation, while clamping the lesion, it is also necessary to clamp the magnetic beads that are sent to the body first, which is equivalent to hanging the magnetic beads on the body. Titanium clip on

Because the magnetic beads themselves are not permanently fixed with the titanium clip, but when the lesion is clamped by the titanium clip, the independent magnetic beads are hung on a closed loop formed by the front part of the clip. If the doctor does not operate properly, it may not be able to fix the product. The magnetic beads are clamped on the titanium clip, and the magnetic beads must be taken into account while clamping the lesion. The operation is difficult. When the size of the tissue is large and requires a large traction force, the magnetic force of the titanium clip itself is insufficient. It is also inconvenient to transport magnetic beads into the body multiple times

[0004] The applicant's Chinese patent application number 2019113251994 proposes an auxiliary device for minimally invasive surgery, which basically solves the problems of inconvenient operation and insufficient magnetic force in the prior art, but its internal control structure is relatively complicated and the design cost is high. The applicant has carried out technical iteration on this, the control structure is more reasonable and concise, the design cost has been reduced, and the product competitiveness has been improved

[0005] The invention mainly relates to a clamping device for minimally invasive surgery. The magnet is permanently fixedly connected to the clamping part. During the operation, the spare magnet can be delivered multiple times according to the actual traction force, so that the tissue part can be pulled by a suitable external force. It is difficult to cut the lesion, the boundary of the lesion is not easy to distinguish, the cutting of the lesion is not accurate, and the operation efficiency is not high.

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