A cutter driving device for an intracavity cutting stapler

A driving device and a stapler technology, which is applied in the field of medical devices, can solve the problem that the intracavity cutting stapler cannot safely and reliably realize the one-shot firing of the cutting knife, and achieve the effect of simple and reliable structure, reasonable transmission ratio, and improved safety factor

Active Publication Date: 2016-09-21
SHANDONG WEIRUI SURGICAL MEDICAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem that the existing intracavity cutting anastomat cannot safely and reliably realize one-time firing of the cutting knife, the present invention provides a cutting knife driving device for an intracavity cutting anastomat that can safely and reliably realize one-time firing of the cutting knife

Method used

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  • A cutter driving device for an intracavity cutting stapler
  • A cutter driving device for an intracavity cutting stapler
  • A cutter driving device for an intracavity cutting stapler

Examples

Experimental program
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Embodiment Construction

[0034] Such as Figure 2-4 As shown, the advancing blade 16 and the retracting blade 17 are installed side by side in the firing handle 4, the advancing blade 16 is provided with fan-shaped teeth, the retracting blade 17 is provided with fan-shaped teeth, the feeding gear 14 meshes with the fan-shaped teeth of the advancing blade 16, and the retracting blade transitions The gear 12 meshes with the sector teeth of the retracting blade 17, and the retracting gear 15 meshes with the transitional gear 12 for retracting. The retracting gear 15, the feeding gear 14 and the transmission gear 13 are connected together by a sliding key 18, and the sliding key 18 is used to make the feeding gear 14 and the transmission gear 13 rotate synchronously or the retracting gear 15 and the transmission gear 13 rotate synchronously . The rack 11 meshes with the transmission gear 13 .

[0035] The extension spring shaft 33 passes through the blade 16 and the blade 17 and is fixed on the fixed ha...

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PUM

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Abstract

The invention relates to a cutter driving device for an intracavity cutting stapler and solves the technical problem that the conventional intracavity cutting stapler cannot safely and reliably realize one-time percussion of a cutter. The cutter driving device comprises a cutter feed sheet, a cutter retreat sheet, a cutter feed gear, a cutter retreat transmission gear, a cutter retreat gear, a transmission gear and a slide key; the cutter feed gear engages with the cutter feed sheet; the cutter retreat transition gear engages with the cutter retreat sheet; the cutter retreat gear engages with the cutter retreat transition gear; the cutter retreat gear, the cutter feed gear and the transmission gear are connected together via the slide key; the transmission gear is located between the cutter retreat gear and the cutter feed gear. The cutter driving device is widely applied to cutting staplers.

Description

technical field [0001] The invention relates to a transmission device in the technical field of medical instruments, in particular to a cutting knife driving device for an intracavity cutting stapler. Background technique [0002] As we all know, endoluminal cutting staplers have been widely used in reconstructive operations such as stomach and colorectum. [0003] As in the accompanying drawings figure 1 The endocavity cutting stapler shown includes a distal jaw assembly 1, a sleeve 2, a joint steering knob 3 and an operating mechanism 10, the sleeve 2 is connected to the distal jaw assembly 1, and the joint steering knob 3 is connected to the sleeve 2 connection, the operating mechanism 10 is connected with the joint steering knob 3, the firing handle 4 is connected with the operating mechanism 10, the closing handle 5 is connected with the operating mechanism 10, the fixed handle 8 is connected with the operating mechanism 10, and the operating mechanism 10 is also conne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/072A61B17/3209
CPCA61B17/07207A61B17/3209A61B2017/07285
Inventor 姚大强夏玉波刘启东张启进庞坤
Owner SHANDONG WEIRUI SURGICAL MEDICAL PROD
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