Changzhou Kangdi Medical Stapler Co., Ltd.

Shanghai Boqia Medical Device Co., Ltd.

Shanghai Chuangyi Medical Device Tech. Co., Ltd.

Zuren Zhang

Weihua Rosen Xu

Yiyi Zhang

Rong Ji

Zhenyu Jiang

Dongkun Yuan

Suying Li

Yikang Jiang

Qi Yang

Wei Min Yang

Guoan Yu

An interface of the needle of a medical syringe and realizes that a conical fitting and a conical inclined surface of a syringe barrel and a conical lip and a conical hole of the needle form an interface of the needle; when the conical hole of the needle is plugged onto the conical fitting of the syringe barrel, the needle is fixed onto the conical fitting of the syringe barrel to achieve the purpose of preventing a needle tip from swinging when the needle pierces a muscle or a blood vessel of a human body, so as to avoid misoperation; and after the medical syringe is used, the conical lip of the needle distal away from the needle tip only needs to be pinched flat, the needle can then be separated from the conical fitting of the syringe barrel of the medical syringe.

Interface of needle of medical syringe

The present invention disclosed a surgical staple () and staple pocket () for forming kidney-shaped staple therefor, with the staple pocket () being recessed inward on the tissue contacting surface of the staple anvil (), and with M-shaped staple () being used, wherein the degree of projection of the middle portion of the back span () of the M-shaped staple () arranged at the inner circle or arranged at a proximal side of a cutter slot () is larger than that of the back span () of the M-shaped staple () arranged at the outer circle or arranged at a distal side of the cutter slot (), so that when the staple () of the same height are adapted to staple tissues to be stapled of different thickness, staple driver () bends the M-shaped staple () on the staple pocket () to form kidney-shaped staple () so as to achieve the operational effect of being able to seal the stapled tissue, to stop bleeding and to heal the tissue therearound.

Surgical staple and staple pocket for forming kidney-shaped staple

An endoscopic surgical cutting stapler with a chain articulation is provided, in which a joint is implemented by a chain articulation, teeth are provided at two ends of a chain plate of the chain articulation, and teeth of adjacent chain plates in the same row are engaged. Through mesh transmission of engaged teeth of the adjacent chain plates in the same row, an angle of a most proximal chain plate of the chain articulation is gradually multiplied at several stages and transmitted to an end effector. The end effector can rotate for 90&#xb0; with small drive motion of the operating mechanism, thereby achieving precise placement of the chain articulation after rotation. The end effector can be precisely aligned with a part to be cut and stapled, and a radius of curvature of the chain articulation can be significantly increased.

Endoscopic surgical cutting stapler with a chain articulation

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Shanghai, China

Zuren Zhang