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33results about How to "Reliable bending" patented technology

Renal denervation ablation catheter with pre-bent catheter body

The invention discloses a renal denervation ablation catheter with a pre-bent catheter body. The ablation catheter comprises a main catheter body, an electrode, a handle, an electric wire and an electric terminal; the two ends of the main catheter body are connected with the electrode and the handle, respectively; the main catheter body is provided with a tubular cavity and a tubular wall; the electric wire goes through the tubular cavity of the catheter body, and one end of the electric wire is electrically connected with the electrode, while the other end of the electric wire is electrically connected with the electric wire of the electric terminal after going through the handle; one end, close to the electrode, of the main catheter body is a far end of the main catheter body, and an in-catheter shape memory metal wire is inserted in the tubular wall of the far end in the axial direction of the main catheter body and provided with a bent part; after the in-catheter shape memory metal wire is inserted in the tubular wall so that the far end of the main catheter body is provided with a bent far-end pre-bent catheter section, and the bent far-end pre-bent catheter section is capable of providing reliable and controllable curvature. The ablation catheter is simple to operate, easy to manufacture, and capable of providing reliable curvature.
Owner:远见企业有限公司

Bending device and U-shaped pipe machining equipment

The invention provides a bending device and U-shaped pipe machining equipment. The bending device comprises a bending mechanism and a contact pattern mechanism, wherein the bending mechanism comprisesclamping portions, and the clamping portions comprise clamping spaces for containing pipe parts and first position-limiting grooves, are rotatably arranged and are provided with feeding positions andbending positions; the contact pattern mechanism comprises position-limiting portions, and the position-limiting portions are provided with second position-limiting grooves for containing the pipe parts, are movably arranged both in a first direction and a second direction and are provided with first position-limiting positions, second position-limiting positions and third position-limiting positions; and in the process of the clamping portions rotating from the feeding positions to the bending positions, the position-limiting portions move from the first position-limiting positions to the second position-limiting positions in the second direction and move from the second position-limiting positions to the third position-limiting positions in the first direction to make the first position-limiting grooves and the second position-limiting grooves be butted and clamp the pipe parts. By means of the bending device and the U-shaped pipe machining equipment, the problem of the poor qualityof U-shaped pipes produced and obtained by a bending device in the prior art is solved.
Owner:ZHUHAI GREE INTELLIGENT EQUIP CO LTD +1

Novel heart stent of improved structure

The invention discloses a novel heart stent of an improved structure, and relates to the technical field of condenser devices. The technical problem that an existing heart stent is not ideal in supporting performance, ductility and flexibility is mainly solved. The novel heart stent comprises multiple layers of metal supports and connectors for connecting the adjacent metal supports. Each metal support is formed by cyclically and alternately connecting a plurality of first structures without elasticity and a plurality of second structures with elasticity, the first structures and the second structures are each in a strip shape and form crests and troughs respectively after being connected, and the crest circular arc radius of the first structures is larger than the trough circular arc radius of the second structures. The first structures and the second structures of the adjacent metal supports are oppositely and neatly arrayed and have the same direction. The connectors are each in a strip shape. The connectors between the adjacent metal supports are arranged at intervals and staggered with the connectors of the same metal supports. The middle of each connector is formed by connecting two staggered third structures, and the third structures are each in a semicircular shape. The novel heart stent has the advantages of being high in ductility and flexibility, stable, reliable andlong in service life.
Owner:刘永华
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