Abstract: A connector is provided with a holding component, a support component, a terminal electrically connected to a contact of a guide wire held by the holding component, and a guide component rotatable around an axial line of the guide wire with respect to the support component. The holding component is provided with a body having an insertion hole for the guide wire and a holding piece extending along an axial line of the insertion hole from the body and capable of being elastically deformed inward in a radial direction with respect to the axial line. The guide component has a guide surface guiding the holding piece inward in the radial direction. The holding component is slid along the axis line of the insertion hole with respect to the guide component, whereby the holding piece abuts on the guide surface to be elastically deformed inward in the radial direction.

Abstract: A connector is provided with a holding component, a support component, a terminal electrically connected to a contact of a guide wire held by the holding component, and a guide component rotatable around an axial line of the guide wire with respect to the support component. The holding component is provided with a body having an insertion hole for the guide wire and a holding piece extending along an axial line of the insertion hole from the body and capable of being elastically deformed inward in a radial direction with respect to the axial line. The guide component has a guide surface guiding the holding piece inward in the radial direction. The holding component is slid along the axis line of the insertion hole with respect to the guide component, whereby the holding piece abuts on the guide surface to be elastically deformed inward in the radial direction.

Abstract: A connector (140) is provided with a holding component (141), a support component (148), a terminal (144) electrically connected to a contact of a guide wire (130) held by the holding component (141), and a guide component (147) rotatable around an axial line (130A) of the guide wire (130) with respect to the support component (148). The holding component (141) is provided with a body (150) having an insertion hole (150a) for the guide wire (130) and a holding piece (151) extending along an axial line of the insertion hole (150a) from the body (150) and capable of being elastically deformed inward in a radial direction with respect to the axial line. The guide component (147) has a guide surface (165a) guiding the holding piece (151) inward in the radial direction. The holding component (141) is slid along the axis line of the insertion hole (150a) with respect to the guide component (147), whereby the holding piece abuts on the guide surface (165a) to be elastically deformed inward in the radial direction.

Abstract: A control circuit for a sensor provided in a long member which can be inserted into a lumen to measure the flow velocity of a fluid in the lumen and a measurement device. The control circuit includes a drive circuit supplying a drive current to the sensor. A leakage current detection circuit detects a leakage current and performs an output corresponding to the detected leakage current. The leakage current detection circuit outputs a detection signal in response to detection of a leakage current exceeding a threshold value. A stop circuit stopping supply of the drive current to the sensor by the detection signal is further provided.

Abstract: A blood measurement device having high bending rigidity and having excellent propulsion properties and rotational force transmission properties in a blood vessel.

Abstract: [Object] To provide an ablation system capable of suppressing heat damages to the lumen intima. [Solution] An ablation system 10 has an ablation device 11 in which a balloon 21 is provided on the distal end side of a shaft 22 and an in-side tube 27 causing a fluid to flow into the balloon 21, the internal space of the shaft 22 causing a fluid to flow out of the balloon 21, and an optical fiber 29 guiding laser light into the balloon 21 are individually provided along the shaft 22, a laser light generating unit 12 emitting laser light to the optical fiber 29, and a fluid returning unit 13 returning a fluid into the internal space of the balloon 21. The ablation device 11 has a reflector 33 reflecting laser light emitted from the optical fiber 29 in the balloon 21, in which the reflector 33 is movable along the axial direction 191 in the balloon 21 and is rotatable in the axial direction 101 as the axis line.

Abstract: [Object] To provide an ablation system capable of suppressing heat damages to the lumen intima. [Solution] An ablation system 10 has an ablation device 11 in which a balloon 21 is provided on the distal end side of a shaft 22 and an in-side tube 27 causing a fluid to flow into the balloon 21, the internal space of the shaft 22 causing a fluid to flow out of the balloon 21, and an optical fiber 29 guiding laser light into the balloon 21 are individually provided along the shaft 22, a laser light generating unit 12 emitting laser light to the optical fiber 29, and a fluid returning unit 13 returning a fluid into the internal space of the balloon 21. The ablation device 11 has a reflector 33 reflecting laser light emitted from the optical fiber 29 in the balloon 21, in which the reflector 33 is movable along the axial direction 191 in the balloon 21 and is rotatable in the axial direction 101 as the axis line.

Abstract: [Object] To provide an ablation system capable of suppressing heat damages to the lumen intima. [Solution] An ablation system 10 has an ablation device 11 in which a balloon 21 is provided on the distal end side of a shaft 22 and an in-side tube 27 causing a fluid to flow into the balloon 21, the internal space of the shaft 22 causing a fluid to flow out of the balloon 21, and an optical fiber 29 guiding laser light into the balloon 21 are individually provided along the shaft 22, a laser light generating unit 12 emitting laser light to the optical fiber 29, and a fluid returning unit 13 returning a fluid into the internal space of the balloon 21. The ablation device 11 has a reflector 33 reflecting laser light emitted from the optical fiber 29 in the balloon 21, in which the reflector 33 is movable along the axial direction 191 in the balloon 21 and is rotatable in the axial direction 101 as the axis line.

Abstract: A balloon catheter (10) has a shaft (12) having an elastically expandable balloon (11) on the distal end side and space provided inside and allowing a fluid to flow into and flow out the balloon (11), a heat generating member (22) provided in the internal space of the balloon (11), and optical fibers (20A, 20B) which are extended up to the internal space of the balloon (11) along the shaft (12) and emit light beams input into the proximal end to the heat generating member (22) from the distal end.

Abstract: A connector (140) is provided with a holding component (141), a support component (148), a terminal (144) electrically connected to a contact of a guide wire (130) held by the holding component (141), and a guide component (147) rotatable around an axial line (130A) of the guide wire (130) with respect to the support component (148). The holding component (141) is provided with a body (150) having an insertion hole (150a) for the guide wire (130) and a holding piece (151) extending along an axial line of the insertion hole (150a) from the body (150) and capable of being elastically deformed inward in a radial direction with respect to the axial line. The guide component (147) has a guide surface (165a) guiding the holding piece (151) inward in the radial direction. The holding component (141) is slid along the axis line of the insertion hole (150a) with respect to the guide component (147), whereby the holding piece abuts on the guide surface (165a) to be elastically deformed inward in the radial direction.

Abstract: A blood measurement device having high bending rigidity and having excellent propulsion properties and rotational force transmission properties in a blood vessel.

Abstract: A balloon catheter (10) has a shaft (12) having an elastically expandable balloon (11) on the distal end side and space provided inside and allowing a fluid to flow into and flow out the balloon (11), a heat generating member (22) provided in the internal space of the balloon (11), and optical fibers (20A, 20B) which are extended up to the internal space of the balloon (11) along the shaft (12) and emit light beams input into the proximal end to the heat generating member (22) from the distal end.

Abstract: A balloon catheter of novel configuration, which is capable of both efficiently heating a heating element by using a laser light and of ensuring durability by avoiding the laser light directly heating members other than the heating element. Provided is a balloon catheter with a balloon disposed in a distal end section of a shaft and wherein: a tightly wound coil shaped heating element is housed and arranged in the balloon; an optical fiber that irradiates a laser light inside the heating element is disposed; and a supply path that supplies a fluid to inside the balloon through an inside of the heating element and a discharge path that discharges the fluid from inside the balloon through a discharge port positioned on an outside of the heating element are disposed.

Abstract: A balloon catheter of novel configuration, which is capable of both efficiently heating a heating element by using a laser light and of ensuring durability by avoiding the laser light directly heating members other than the heating element. Provided is a balloon catheter with a balloon disposed in a distal end section of a shaft and wherein: a tightly wound coil shaped heating element is housed and arranged in the balloon; an optical fiber that irradiates a laser light inside the heating element is disposed; and a supply path that supplies a fluid to inside the balloon through an inside of the heating element and a discharge path that discharges the fluid from inside the balloon through a discharge port positioned on an outside of the heating element are disposed.