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An overload protection device for a thermosetting cutting knife

An overload protection and cutting knife technology, which is applied in the field of medical machinery, can solve the problems of transmission mechanism failure and excessive force, and achieve the effect of preventing excessive force

Active Publication Date: 2016-04-13
ANHUI AOFO MEDICAL EQUIP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcoming of the failure of the transmission mechanism of the thermal coagulation cutting knife due to excessive force at the present stage, and propose an overload protection device for the thermal coagulation cutting knife

Method used

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  • An overload protection device for a thermosetting cutting knife

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Embodiment Construction

[0013] Such as figure 1 As shown, the overload protection device of a thermocoagulation cutting knife provided by the present invention includes a casing 1, and a support pipe 3 is connected through a boss 1a in the casing 1, and a wrench 2 is also connected in the casing 1, and the wrench 2 is connected to a support The pipe 3 is characterized in that: a sleeve 6 is threadedly connected to the support pipe 3, flanges 6a are respectively provided at both ends of the sleeve 6, and a screw hole 6b is provided on the flange 6a on one side. The locking sleeve 6 is fixed by screws in the screw hole 6b, and the sliding sleeve 4 is sleeved on the sleeve 6. The sleeve 6 and the sliding sleeve 4 are slidably matched, and a sliding sleeve flange 4a is provided at one end of the sliding sleeve 4. A spring 7 is sleeved on the cylinder 4, and the two ends of the spring 7 are in contact with the sliding cylinder flange 4a and the flange 6a of the casing 6 respectively.

[0014] The front e...

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Abstract

The invention relates to an overload protection device for a thermosetting cutting knife. The overload protection device comprises a housing (1), wherein a wrench (2) and a supporting tube (3) are connected to the interior of the housing (1); the overload protection device is characterized in that the supporting tube (3) is sleeved with a sleeve (6); the two ends of the sleeve (6) are respectively provided with a flange (6a); the sleeve (6) is sleeved with a spring (7), and connected with a shift fork (5) in a matching manner; the shift fork (5) is correspondingly matched with the flanges (6a) and connected with the wrench (2); the spring (7) is arranged between the shift fork (5) and the flanges (6a). The overload protection device has the advantages that the spring is arranged in the device, so as to play effects of buffering, shock absorption and overload protection, the device can limit maximum operating force and absorb displacement amount of interference, and can effectively prevent the failure of instruments caused by excessive force in the operation.

Description

technical field [0001] The invention relates to the field of medical machinery, in particular to an overload protection device for a thermocoagulation cutting knife. Background technique [0002] Minimally invasive surgery is performed using modern medical instruments such as laparoscopy and thoracoscopic surgery and related equipment. It has the advantages of less trauma, less pain, and faster recovery. With the development and progress of technology, minimally invasive surgery has penetrated into various fields of surgery. [0003] The thermal coagulation cutting knife is one of the most important instruments of the thermal welding technology system in minimally invasive surgery. The current thermal coagulation cutting knife has no buffer device in the transmission mechanism. When the operator is in the operation, when the force is too large, Just might make the transmission mechanism of power fail, and this will cause very serious consequence, through extensive retrieval...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12
Inventor 段宇叶兵胡毅汪进余海东苗长胜谢鸿年
Owner ANHUI AOFO MEDICAL EQUIP TECH
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