Touchstone International Medical Science Co., Ltd.

Suzhou Touchstone International Medical Science Co., Ltd.

Yanping Ye

Wangdong Chen

Tuo Shu

Kaifen Fu

Yongwang Pei

Hui Gao

Laicun Li

The present invention discloses a staple cartridge assembly and a medical stapler using the staple cartridge assembly. A first jaw is provided with a limiting portion; a cutter is provided with a securing portion; when a firing block is located at a proximal end of a staple cartridge assembly, a cutting push rod drives the cutter and the firing block together to move; when the firing block is located at the distal end of the staple cartridge assembly, a driving mechanism drives the cutter and the first jaw to move relative to each other; and the limiting portion and the securing portion resist against each other to restrict the cutter from continuing moving toward the distal end of the staple cartridge assembly. As a result, doctors can be effectively prevented from closing the stapler when the replacement of the fired staple cartridge assembly is not completed.

Staple cartridge assembly and medical stapler using the staple cartridge assembly

The present invention provides a tissue closure device, comprising: a first clamping base and a second clamping base which may be opened/closed relatively and form an accommodation cavity after being closed; and a pouch assembly which may be driven to move in the accommodation cavity, wherein: the pouch assembly comprises a staple pusher, a pair of needle heads movably connected to the staple pusher, and a connection portion connected to the proximal ends of the pair of needle heads; and when the staple pusher moves from the proximal end to the distal end, the pair of needle heads pushes a tubular tissue located in the accommodation cavity to the distal end until the distal ends of the pair of needle heads are closed to close the tubular tissue into a purse string. A bundled purse string with a gathered center may be formed through the tissue closure device.

Tissue closure device and medical instrument

A staple cartridge assembly comprises a staple cartridge, an anvil and a cutter, wherein the cutter comprises a first end and a second end; the staple cartridge assembly also comprises a rotation shaft and an auxiliary closing member which is connected with the rotation shaft; the staple cartridge assembly is also provided with a driving component capable of driving the rotation shaft to rotate; the driving component drives the rotation shaft to drive the auxiliary closing member to move in the process in which the staple cartridge assembly is converted from an original status to a closed status; when at least the staple cartridge assembly is in the closed status, one end surface of the auxiliary closing member abuts against the anvil to apply a force to the anvil for driving the anvil to be closed towards the staple cartridge.

A staple cartridge assembly comprises a connector, a cutter push rod and an elastic sheet, the elastic sheet having a first through groove and the cutter push rod being formed by laminating multiple sheets, wherein when the staple cartridge assembly is in an original status or a closed status, part of the cutter push rod is located in the first through groove, and the first through groove restricts detaching of the multiple sheets in a laminating direction of the multiple sheets; in a firing process of the staple cartridge assembly, the cutter push rod moves towards a distal end of the staple cartridge assembly to press the elastic sheet, such that the elastic sheet deforms and the cutter push rod is gradually detached from the first through groove; after the firing of the staple cartridge assembly is finished, the cutter push rod is detached from the first through groove.

A suturing and cutting apparatus for endoscopic surgery includes a body, a head portion, and a transmission mechanism, the head portion, is connected rotatably to a distal end of the body relative to the axial direction of the body by the transmission mechanism. The transmission mechanism includes an operating rod, a connecting assembly and a gear transmission mechanism. The connecting assembly includes a first conversion component which is set between the body and the head portion and can rotate relative to the axial direction of the body. The aspects disclosed herein allow and facilitate in the performance of the endoscopic surgery.

Suturing and cutting apparatus for endoscopic surgery

A loading unit assembly used for a linear surgical stapler, which includes a staple cartridge frame and a knife driver beam. The knife driver beam has a movable safety block defined on a surface of a proximal end thereof, and a protrusion is correspondingly defined on the staple cartridge frame. When the loading unit assembly is at its initial position, a front surface at a distal end of the safety block engages with the protrusion to stop a movement of the knife driver beam and the safety block. When the loading unit assembly is at its working position, the safety block is relatively separated from the protrusion.

Growing community of inventors

Suzhou, China

Yanping Ye