Covidien LP

Shanghai Jiaotong University

Dow Global Technolgoies LLC

Hunan University of Science and Technology

Ping Ren

Syed Sarfraz Ahamed

Jiangfeng Zhang

Sridharan Varadhan

Xiafei Ma

Shaoguang Feng

Xiliang Zhang

Yongping Jin

Buyan Wan

Shunhong Xu

Journey Lu Zhu

Xini Zhang

Youduo Peng

Zhinan Guo

Manojit Hazra

Zheng Zeng

Lian Lian

Di Lu

A surgical stapling device includes a cartridge assembly including a staple pusher, a knife holder, a knife supported on the knife holder, and a biasing member. The biasing member is positioned between the staple pusher and the knife holder to prevent re-advancement of the knife blade after the stapling device is fired.

Staple cartridge with retractable knife assembly

A surgical stapling device includes a clamp slide assembly and an end effector that includes a cartridge module. The clamp slide assembly includes a distal portion that defines a curved slot and includes a linear section that defines linear channels. The cartridge module includes a curved module body that includes a linear section that includes linear ribs. The linear ribs are received within the linear channels to facilitate loading of the cartridge module into the distal portion of the clamp slide assembly in a linear fashion.

Stapling device with replaceable cartridge module

A surgical stapling device includes a tool assembly having a U-shaped frame, an anvil assembly, and a cartridge assembly. The U-shaped frame has a proximal transverse portion, a longitudinal portion, and a distal transverse portion. The distal transverse portion and the proximal transverse of the U-shaped frame and the cartridge assembly have a common shape including a first linear portion defining a first axis, a second linear portion defining a second axis, and a third linear portion defining a third axis, the first axis being transverse to the longitudinal axis of the elongate body. In embodiments, a first radius of curvature is defined between the first linear portion and the second linear portion such that the first axis and the second axis define an angle &#x3b2;, and a second radius of curvature is defined between the second linear portion and the third linear portion such that the second axis and the third axis define an angle &#x3a9;.

Surgical stapling device with curved tool assembly

A surgical stapling device includes a cartridge assembly including a cartridge body, a staple pusher, a knife assembly, and a locking device. The locking device is configured to prevent readvancement of the knife assembly.

Surgical stapling device with knife blade lock

A fixed-wing aerial underwater vehicle includes a shell component, a flight component and a pneumatic buoyancy component. The flight component includes a fixed wing and rotors, and the fixed wing and the rotors are mounted in the shell component. The pneumatic buoyancy component includes an air bladder and an inflation and deflation portion, and the inflation and deflation portion can inflate and deflate the air bladder. The air bladder is installed on the shell component, a containing space is formed in the shell component, and the inflation and deflation portion is partially or entirely installed in the containing space. Each rotor includes a rotor supporting rod, a motor base, a motor and a propeller, which are sequentially connected. A control method for the fixed-wing aerial underwater vehicle mentioned above is further provided.

Fixed-wing aerial underwater vehicle and control method thereof

Provided is a mechanical handheld hermetic sampler for marine sediment. The sampler comprises sampling assembly and a pressure maintaining assembly. The sampling assembly includes a sampling tube, a handle and an end cap. The sampling tube is fixed at a lower end surface of the end cap while the handle is fixed at an upper end surface of the end cap. The handheld robotic sampler for marine sediment with hermetic sampling is simple and compact in structure, small in size, light in weight, easy to manipulate and manufacture, highly reliable, and particularly suitable for robotic sampler hand control of underwater operating equipment such as a manned submersible, an unmanned submersible and Remotely Operated Vehicle.

Mechanical handheld hermatic sampler for marine sediment and sampling, pressure mataining method thereof

Epoxy resin compositions utilizing phosphazene blocked azole compounds as curing catalyst are provided. Also provided are epoxy resins cured with phosphazene blocked azole compounds and methods of making cured epoxy resins using curing catalysts of phosphazene blocked azole compounds.

Phosphazene blocked imidazole as latent catalyst for epoxy resins

Growing community of inventors

Shanghai, China

Ping Ren