Abstract: It is intended to provide a thrombus-aspiration catheter capable of exerting flexibility and aspiration force even in the case where the tube in the front end side is a triple lumen tube or a contrast marker is provided at the front end. A thrombus-aspiration catheter (1) comprising a basal end side tube (2) of the double lumen type which has an aspiration lumen (11) and a core wire lumen (12), and a front end side tube (3) of the triple lumen type which has a guide wire lumen (13) in addition to the aspiration lumen (11) and the core wire lumen (12), wherein the front end of the above-described front end side tube is obliquely cut and a terminal aspiration tube (4) of a flexible double lumen, which has a front end opening (41) inclined in almost the same direction as the cut face (31), is connected to the cut face.

Abstract: It is intended to provide a thrombus-aspiration catheter capable of exerting flexibility and aspiration force even in the case where the tube in the front end side is a triple lumen tube or a contrast marker is provided at the front end. A thrombus-aspiration catheter comprising a basal end side tube of the double lumen type which has an aspiration lumen and a core wire lumen, and a front end side tube of the triple lumen type which has a guide wire lumen in addition to the aspiration lumen and the core wire lumen, wherein the front end of the above-described front end side tube is obliquely cut and a terminal aspiration tube of a flexible double lumen, which has a front end opening inclined in almost the same direction as the cut face, is connected to the cut face.

Abstract: A shaft for operating a blood thrombus capturing member (2), comprises a blood thrombus capturing member (3) equipped on the distal end side thereof, and a guide tip (4) quipped at the distal end, through which a guide wire is inserted so as to be capable of relative movement, wherein the shaft (2) is flexible. Therefore, the distal end component of a blood thrombus capturing catheter can be easily guided to a vein constriction, and particularly with a branched vein, the distal end component of the blood thrombus capturing catheter can be easily guided to the targeted branch of the vein.

Abstract: It is an object to provide a filter for thrombus capture catheters with a thin wall and a sufficient strength and a method of producing the same. A filter for thrombus capture catheters is produced by a method comprising the steps of: arranging a plurality of wires so as to run helically and cross each other, thereby forming a cross wire assembly 2 with a spindle-shaped configuration, which is expanded at a middle portion 2C and converged at distal portion 2A and proximal portion 2B; and forming a parachute canopy-shaped filtering section 3 on one side of said cross wire assembly corresponding to approximately half of the spindle-shaped configuration by the dip coating method using a filter material.

Abstract: A sheath unit for recovering a thrombus capture member, in which the thrombus capture member can be accommodated without leakage of a thrombus, and which can be more smoothly passed through a lesion, and a thrombus capture catheter unit for capturing the freed thrombus are provided. The sheath unit for recovering a thrombus capture member includes a sheath having a flexible tube at its tip, a portion of the flexible tube being reduced in diameter. A thrombus capture catheter unit includes the sheath unit for recovering the thrombus capture member and a thrombus capture member. The thrombus capture member which is expanded is accommodated into the sheath and a crossed wire member and a portion of a filter part constituting the thrombus capture member are accommodated in the flexible tube, thereby diameter-reducing an opening part of the filter part.

Abstract: A control device of a detached cells collection apparatus first closes an exhaust pipe and opens an injection pipe to inject a predetermined quantity of a trypsin solution into a culture chamber, starts counting trypsin processing time, and inclines a support table when the counted trypsin processing time reaches a preset time period. The control device simultaneously opens the exhaust pipe and makes the trypsin solution including detached cells in the culture chamber flown through the exhaust pipe to a collection chamber. On completion of such collection, the support table is returned to its horizontal orientation and a new collection chamber is set in the detached cells collection apparatus. The control device again closes the exhaust pipe and opens the injection pipe to inject the predetermined quantity of the trypsin solution into the culture chamber and resumes counting the trypsin processing time. This series of operations is repeated to collect cells according to the trypsin processing time.

Abstract: A method for evaluating the proliferation ability of an entire cell population by observing each anchorage-dependent cell without invading and destroying the cell. The evaluation method includes monolayer-culturing anchorage-dependent cells in a culturing chamber, imaging each cell, calculating an index related to the proliferation ability of each cell using the image of each cell, and evaluating the proliferation ability of the cell population using the index. The index includes an expansion speed (rs) indicative of a change in a projected area of each cell (Sa) during a cell adhesion phase, the number of cells contacting each cell in a cell proliferation phase, and a projected area (Sa′) of each cell in the cell-proliferation phase.

Abstract: A cell culture device which facilitates a culture operation while maintaining conditions suited for culture of cells. A cell culture device 11 comprises first and second culture units 12a and 12b, a cell feed unit 14, a liquid feed unit 15, a liquid waste tank 16, a gas exchange unit 18, and a control unit 101. Cells are cultured in the first and second culture units 12a and 12b. A CCD camera 22 provides image data of the cells to the control unit 101. The control unit calculates concentration of the cells from the image data and determines timings to replace a culture medium and perform subculture in accordance with the concentration.