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46837results about How to "Avoid deformation" patented technology

Apparatus for applying surgical fastners to body tissue

An apparatus is disclosed for endoscopic application of surgical staples adapted to attach surgical mesh to body tissue in laparoscopic hernia surgery. The apparatus includes a frame, and a generally elongated endoscopic section connected to the frame and extending distally therefrom. A staple storage cartridge is removably supported on a pivotal support system at the distal end portion of the endoscopic section with each staple being configured and adapted to attach the mesh to the body tissue. An elongated pusher system formed of several assembled components and extending from the frame to the endoscopic section is provided for individually advancing at least one staple at a time distally for positioning adjacent the surgical mesh and the body tissue. The pusher system also includes a trigger system to actuate the pusher. The trigger system is provided with perceptible tactile sensing means to indicate when the legs of the staple being advanced are exposed so as to be visible to the user for positioning and orientation purposes. Anvil means provides for individually closing each staple to encompass at least a portion of the surgical mesh and to penetrate the body tissue in a manner to attach the portion of the mesh to the body tissue. Projecting distally of the cartridge support system is a pair of legs which are dimensioned and configured to engage the staple during closure to prevent unwanted roll or deformation outside of the plane of the staple.
Owner:COVIDIEN LP

Apparatus and method for applying surgical staples to attach an object to body tissue

An apparatus is disclosed for endoscopic application of surgical staples adapted to attach surgical mesh to body tissue in laparoscopic hernia surgery. The apparatus includes a frame, and a generally elongated endoscopic section connected to the frame and extending distally therefrom. A staple storage cartridge is removably supported on a pivotal support system at the distal end portion of the endoscopic section with each staple being configured and adapted to attach the mesh to the body tissue. An elongated pusher system formed of several assembled components and extending from the frame to the endoscopic section is provided for individually advancing at least one staple at a time distally for positioning adjacent the surgical mesh and the body tissue. The pusher system also includes a trigger system to actuate the pusher. The trigger system is provided with perceptible tactile sensing means to indicate when the legs of the staple being advanced are exposed so as to be visible to the user for positioning and orientation purposes. Anvil means provides for individually closing each staple to encompass at least a portion of the surgical mesh and to penetrate the body tissue in a manner to attach the portion of the mesh to the body tissue. Projecting distally of the cartridge support system is a pair of legs which are dimensioned and configured to engage the staple during closure to prevent unwanted roll or deformation outside of the plane of the staple.
Owner:TYCO HEALTHCARE GRP LP

Dynamizable orthopedic implants and their use in treating bone defects

The present invention generally relates to bone fixation devices and methods for promoting arthrodesis of bone defects. The bone fixation devices can provide sufficient support to the bone defect while allowing bone ingrowth and minimizing the risk to stress shield and / or pseudo-arthrodesis. The bone fixation devices include a degradable component that allows the device to gradually transfer the load from the supporting member to the growing bone structure in vivo.
Owner:SDGI HLDG

Front and back lock

InactiveCN102080470ASolve slipping and idlingAvoid deformationCylinder locksEngineeringMechanical engineering
The invention discloses a front and back lock comprising a lock body (1), a front lock cylinder (2), a spring (3) and a keyhole (22); the front lock cylinder (2) is internally provided with an atypical spring (4) with a side wall notch (5); the front lock cylinder (2) is internally provided with a side spring hole (7) communicated with a spring hole (6); the side spring hole (7) is internally provided with a side spring (8); a rear lock cylinder (9) is arranged in the rear of the front lock cylinder (2) and is provided with a rear spring hole (10) corresponding to the rear end of the side spring hole (7); the rear spring hole (10) is internally provided with a lock spring (11); and the lock body (1) is internally provided with a lock body spring hole (12) corresponding to the lock spring (11). The front and back lock is characterized in that a sharp corner (13) is arranged at the front end of the lock spring (11), or the sharp corners (13) are simultaneously arranged at the front end of the lock spring (11) and the rear end of the side spring hole (7). The lock ensures the stable leakage of the front lock cylinder (2) and the rear lock cylinder (9) by utilizing the mutual occlusion of the sharp corner (13) at the front end of the lock spring (11) and the sharp corner (13) at the rear end of the side spring hole (7). When the lock is unlocked by using an unlocking tool, the front lock cylinder (2) is idle, thereby effectively preventing from being twisted and pulled by the unlocking tool and rotated by external force to open and increasing the safety of the lock.
Owner:谢煜光

Air power engine assembly

The invention relates to an air-powered engine assembly, which comprises an air tank, an air valve, an air distributor, an intake pipe, camshafts, an intake duct, an exhaust control device, air cylinders, pistons, crankshafts, couplers, clutches, automatic gearboxes and differentials connected with the outside. The assembly is characterized in that the air valve, a constant pressure chamber and a pressure controller are arranged between the air tank and the air distributor; the air distributor is connected with a plurality of air cylinders on an air cylinder gasket; each air cylinder is connected with an exhaust chamber through an exhaust manifold; the exhaust chamber is provided with a turbine generator which is connected with a storage batter; the air cylinders are provided with the camshafts for controlling the air intake and exhaust of the air cylinders; the air cylinders are provided inside with the pistons for driving the crankshafts to rotate; the camshafts and the crankshafts are connected by chains; and the crankshafts are connected with the differentials through the couplers, the clutches and the gearboxes in turn. Therefore, doing work through air compression rather than fuel, the air-powered engine assembly has the advantages of avoiding waste gas discharge and air pollution, along with reliable operation, convenient operation, economical efficiency, practicality and so on. In addition, due to recycle of the waste gas for power generation, the air-powered engine assembly saves energy and reduces costs.
Owner:周登荣 +1

Bone fixation apparatus

Disclosed is a bone fixation apparatus. This device comprises a bone screw having a head; a cap member placed on an upper part of the head of the bone screw; a receiver member having a bore in which the cap member and the head of the bone screw are respectively accommodated and held, and a U-shaped channel through which a support bar extends; and a compression member threadedly coupled into the receiver member to downwardly bias the support bar. A multitude of stepped portions are formed at a lower end and inner surface of the receiver member to be brought into linear contact with an outer surface of a lower part of the head so that the supporting force for the head of the bone screw is increased.
Owner:U & I INC
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