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a surgical stapler

A stapler and surgical technology, which is applied in the field of medical devices, can solve the problems of anastomotic leakage, too high height of the distal forming staples, and inconsistent height of the forming staples of the staples, so as to improve the forming yield and reduce the bleeding of the sutures

Active Publication Date: 2018-06-15
SHANGHAI YISI MEDICAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This situation will cause the height of the proximal and distal staples to be inconsistent, and the height of the distal staples to be too high, or even poorly formed, which will lead to suture bleeding and anastomotic leakage.

Method used

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  • a surgical stapler
  • a surgical stapler
  • a surgical stapler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see Figure 1 to Figure 6 , the present invention discloses a surgical stapler, which includes: a first handle part 10 , a second handle part 20 and an adjustment mechanism 30 .

[0040] In this embodiment, the first handle part 10 includes a staple cartridge seat 101, a detachable staple cartridge assembly (including a staple cartridge 107, several nail pushing blocks, and several staples), a locking lever 105, a driving assembly (in this embodiment push button 103, push piece, cutting knife); the locking lever 105 is rotatably mounted on the first handle part 10. The second handle part 20 includes a nail anvil shell 201 , a nail anvil 203 and a rotating shaft 205 (other rotating mechanisms are also possible), and the nail anvil 203 has a nail forming surface.

[0041] The first handle part 10 and the second handle part 20 are assembled together and locked in the longitudinal direction by the locking rod 105 on the first handle part 10 .

[0042] The adjustment mecha...

Embodiment 2

[0048] The difference between this embodiment and Embodiment 1 is that in this embodiment, please refer to Figure 7 , Figure 8 , the adjustment mechanism includes a wedge-shaped slider 31, the wedge-shaped slider 31 has a sliding slope 311, and the sliding slope 311 is a non-horizontal plane. The wedge-shaped slider 31 is placed above the staple cartridge seat 101 , and the sliding slope 311 cooperates with the nail abutment seat 203 . The sliding slope 311 has a push button 312, pushing the push button 312 can make the wedge-shaped slider 31 in different positions, so that the matching position of the nail anvil 203 on the sliding slope 311 is changed, and the proximal end of the nail anvil 203 is raised (or lower), the distal end is lowered (or raised), and the tissue thickness after clamping is consistent at the proximal and distal ends, such as Figure 6 , at this time L1≈L2.

Embodiment 3

[0050] The difference between this embodiment and Embodiment 1 is that in this embodiment, please refer to Figure 9 , 10 , the adjustment mechanism includes a threaded adjustment screw 32 (comprising an adjustment knob 321 and a thread 322), the thread of the adjustment screw 32 cooperates with the threaded hole located at the nail cartridge seat 101, and the top of the screw cooperates with the nail abutment seat 203.

[0051] Manually turning the adjusting knob on the adjusting screw can change the relative position of the top of the adjusting screw relative to the nail cartridge seat, so that the proximal end of the anvil seat 203 is raised (or lowered), the distal end is lowered (or raised), and the clip After sustaining, the tissue thickness is consistent at the proximal and distal ends, such as Figure 6 , at this time L1≈L2.

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PUM

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Abstract

The present invention discloses a surgical stapler. The surgical stapler includes a first handle part, a second handle part, and a adjustment mechanism; the first handle part includes a staple cartridge component and a drive assembly, and the second handle part includes a staple abutting seat; a locking mechanism is arranged on the first handle part or / and the second handle part; the first handle part and the second handle part may rotate via the rotation shaft, and lock in a longitudinal direction; the adjustment mechanism is located between the first handle part and the second handle part; the adjustment mechanism may make, by means of adjustment, the second handle part rotate relative to the first handle part via the rotation shaft thereon. The surgical stapler provided by the present invention may make, by means of the adjustment mechanism at the proximal end of the handle, the thickness of the tissue after clamping reach the same at the proximal and distal ends, so as to improve the formation rate of the suturing staple, and reduce the bleeding of the suturing staple, anastomotic leakage and the like.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and relates to a stapler structure, in particular to a surgical stapler. Background technique [0002] The working principle of the surgical stapler is to clamp the tissue through the closure of two corresponding handle components (usually including the staple base component and the staple cartridge component), and then push the staples in the staple cartridge component out of the stapler to suture the tissue together. In some staplers, a cutting knife is also installed to cut off the stitched tissue. [0003] The surgical stapler with the above functions includes a first handle part and a second handle part, the first handle part includes a detachable nail bin assembly, a locking lever, and a driving assembly; the nail bin assembly generally includes a nail bin, some staples, a number of pushers The nail block has multiple rows of holes on the nail cartridge, the holes contain sutu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/072
CPCA61B17/072A61B2017/07278A61B17/07207A61B2017/0725A61B2017/07271
Inventor 聂红林杨光张析量石秀凤李安华鲍明慧江洋
Owner SHANGHAI YISI MEDICAL TECH CO LTD