Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.

Abstract: In a connector having a rotary actuator (14) for bringing a sheet-like object (11) into press contact with a contact (13) held by a housing (12), the rotary actuator is engaged with the contact in a predetermined direction parallel to the sheet-like object and perpendicular to a center axis of a shaft portion (22) of the rotary actuator. The shaft portion is rotatably engaged with the housing. The contact has a contacting portion (15) to be faced to one surface of the sheet-like object and a supporting portion (16) to be faced to the other surface of the sheet-like object. The actuator has a cam portion (21) integrally connected to the shaft portion and located between the supporting portion and the sheet-like object. The supporting portion has a recess (17) which receives the cam portion to engage the cam portion with the supporting portion in the predetermined direction.

Abstract: An artificial blood vessel A comprises a pair of discrete end wire rings 101, 102, a tubular cover 7 made of a sheet of flexible, tensile material which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart between the end wire rings 101, 102 and circumferentially fixed to the cover 7 by suturing or with adhesive. All of the rings are located on the outside of the cover. To implant the vessel A via a catheter, a plurality of dividing points 411, 431 which bisect the circumference of the front end wire ring 101 are pulled forward while the movement of the midpoints 421, 441 between the dividing points 411, 431 following the movement of the dividing points 411, 431 is restrained by the projections 18c on a tapered surface 18d of a funneled tube 18 so as to fold the front end wire ring 101 into a wavy shape, with the dividing points 411, 431 forming forwardly directed peaks and the midpoints 421, 441 forming the bottoms of forwardly directed valleys.

Abstract: A valve is included as part of a medical appliance used to transport an artificial blood vessel into a body through a catheter. The valve is formed by a membrane having a plurality of holes which are normally closed and which can be pushed to open against elasticity of the membrane to permit a plurality of devices used to transport the artificial blood vessel to be passed through the holes in parallel with each other. In a preferred embodiment, a hole is provided at the center of the membrane and three other holes are equi-spaced from the center hole; equal spaces are also provided between adjacent ones of the three holes. A relatively thick embankment or projecting portion is preferably provided extending between every pair of adjacent holes, to avoid breakage of the membrane therebetween upon parallel insertion of devices through the holes.

Abstract: A front end wire ring 101, and a rear end wire ring 102 are arranged facing each other, and a tubular cover 7 connects the front and rear end wire rings 101 and 102, and an intermediate wire ring 12 is arranged between the front and rear end wire rings 101 and 102, wherein each of the wire rings 101, 102 and 12 is given flexibly foldable elasticity. The front and rear end wire rings 101 and 102 and at least the intermediate wire rings 12 arranged adjacent to the front and rear end wire rings 101 and 102 is connected with the cover 7 through a film member 30 so that the wire rings 101, 102 and 12 can make a back and forth movement relative to the cover 7 within a certain range and that an annular gap formed between the wire rings 101, 102 and 12 and the cover 7 is liquid-tightly sealed.

Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.

Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.

Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.

Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.

Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.

Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.

Abstract: In a cable connector for use in connecting a cable having a first and a second surface opposite to each other in twin thickness direction thereof, a conductive contact has twin contact portions to be opposed to the first surface and a pivot portion to be opposed to the second surface. A handle is used for pressing the cable between the twin contact portions. The handle has a cam portion positioned between the pivot portion and the cable and is made with a hole in which the pivot portion is inserted with a clearance. The pivot portion has a concavity corresponding to the cam portion. The cam portion engages with the pivot portion so that the handle is rotatable around the pivot portion.

Abstract: The artificial blood vessel A comprises a front end wire ring 10.sub.1, a rear end wire ring 10.sub.2 arranged facing to the front end wire ring 10.sub.1, a tubular cover 7 which connects the end wire rings 10.sub.1, 10.sub.2, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 10.sub.1 and the rear end wire ring 10.sub.2. Each of the front end wire ring 10.sub.1, the rear end wire ring 10.sub.2 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 10.sub.1 is equally divided into four by dividing points 41.sub.1, 42.sub.1, 43.sub.1, 44.sub.1. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 41.sub.1, 43.sub.1. The circumference of the intermediate wire ring 12 is fixed to the tubular cover 7 by suturing or with adhesive at the positions 51.sub.3, 52.sub.3, 53.sub.3, 54.sub.3 which correspond to the midpoint 51.sub.

Abstract: An artificial blood vessel A comprises a pair of discrete end wire rings 10.sub.1, 10.sub.2, a tubular cover 7 made of a sheet of flexible, tensile material which connects the end wire rings 10.sub.1, 10.sub.2, and a plurality of intermediate wire rings 12 arranged spaced apart between the end wire rings 10.sub.1, 10.sub.2, and circumferentially fixed to the cover 7 by suturing or with adhesive. All of the rings are located on the outside of the cover. To implant the vessel A via a catheter, a plurality of dividing points 41.sub.1, 43.sub.1 which bisect the circumference of the front end wire ring 10.sub.1 are pulled forward while the movement of the midpoints 42.sub.1, 44.sub.1 between the dividing points 41.sub.1, 43.sub.1 following the movement of the dividing points 41.sub.1, 43.sub.1 is restrained by the projections 18c on a tapered surface 18d of a funneled tube 18 so as to fold the front end wire ring 10.sub.1 into a wavy shape, with the dividing points 41.sub.1, 43.sub.

Abstract: A collapsible artificial blood vessel A comprises a flexible front end wire ring 101, a flexible rear end wire ring 102 arranged facing to the front end wire ring, a tubular cover 7 which connects the end wire rings, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring and the rear end wire ring. The circumference of the front end wire ring is equally divided into four segments by dividing points 411, 421, 431, 441. Hooks 13 are formed for a front pull string to be passed through at the dividing points 411, 431. The circumference of the intermediate wire rings are fixed to the tubular cover 7 by suturing or with adhesive at the positions 513, 523, 533 and 543. The device is collapsed for use by folding the wire rings and insertion of the device into a funnel tube.

Abstract: The artificial blood vessel A comprises a front end wire ring 10.sub.1, a rear end wire ring 10.sub.2 arranged facing to the front end wire ring 10.sub.1, a tubular cover 7 which connects the end wire rings 10.sub.1, 10.sub.2, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 10.sub.1 and the rear end wire ring 10.sub.2. Each of the front end wire ring 10.sub.1, the rear end wire ring 10.sub.2 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 10.sub.1 is equally divided into four by dividing points 41.sub.1, 42.sub.1, 43.sub.1, 44.sub.1. Hooking devices 13 are formed for a front pull string to be passed through at the dividing points 41.sub.1, 43.sub.1. The circumference of the intermediate wire ring 12 is fixed to the tubular cover 7 by suturing or with adhesive at the positions 51.sub.3, 52.sub.3, 53.sub.3, 54.sub.3 which correspond to the midpoint 51.sub.

Abstract: A developing roller includes a magnet roller and a rotatable sleeve thereon. The sleeve is covered with a surface coating of a metal, alloy, metal nitride, metal oxide, metal carbide or metal sulfide by dry plating. The coating has a resistivity of up to 0.01 .OMEGA.cm. The sleeve is fully wear resistant at its surface. Formation of the coating by dry plating minimizes the variation of coating thickness to improve the dimensional precision of the sleeve surface. The developing roller and a developing apparatus equipped therewith can produce images of quality for a long time.

Abstract: This is a method of collapsing an artificial blood vessel A. The artificial blood vessel A comprises a pair of discrete end wire rings 10.sub.1, 10.sub.2, a tubular cover 7 made of a sheet of flexible, tensile material which connects the end wire rings 10.sub.1, 10.sub.2, and a plurality of intermediate wire rings 12 arranged spaced apart between the end wire rings 10.sub.1, 10.sub.2 and circumferentially fixed to the cover 7 by suturing or with adhesive.A plurality of dividing points 41.sub.1, 43.sub.1 which bisect the circumference of the front end wire ring 10.sub.1 are pulled forward while the movement of the midpoints 42.sub.1, 44.sub.1 between the dividing points 41.sub.1, 43.sub.1 following the movement of the dividing points 41.sub.1, 43.sub.1 are restrained by the projections 18c on a tapered surface 18d of a funnelled tube 18 so as to fold the front end wire ring 10.sub.1 into a wavy shape, with the dividing points 43.sub.1, 43.sub.1 forming forwardly directed peaks and the midpoints 42.sub.1, 44.

Abstract: A device for introducing an implantable appliance into a catheter including an attachment connected to said open end of catheter, the attachment being closed at its open end by a flexible check valve. A cartridge is removably attachable to the catheter attachment with the cartridge when attached having a front end portion communicating with the catheter and its other end closed by a second flexible check valve. This second check valve is open when the appliance to be implanted is introduced into the cartridge but thereafter is kept closed and the front end portion of the cartridge with the appliance now inside is inserted into to the first check valve of the attachment.

Abstract: A card-shaped electronic device is used with an electronic apparatus. A rectangular flat box-like main-body of the card-shaped electronic device can be inserted into and taken out of the electronic apparatus in a given insertion direction. The main-body has a pair of lateral sides extending in the insertion direction. A pair of shield plates fixed to the main-body cover the upper and lower surfaces of the main-body. A conductive portion is arranged on the lateral side of the main-body and is electrically connected to the shield plates, for conducting the shield plates with the electronic apparatus when the main-body is loaded in the electronic apparatus.