Abstract: A vascular embolization device includes a coil with a primary shape and an stretch resistant wire provided inside the coil, in which the stretch resistant wire is a multilayer strand including at least one core layer and at least one outer layer including one or more resin compositions and a biochemical active material, and the core layer is composed of a material with a tensile break strength higher than that of the outer layer. The vascular embolization device has the function of administering a biochemical active material and also has good flexibility.

Abstract: A vascular embolization device includes a coil with a primary shape and an stretch resistant wire provided inside the coil, in which the stretch resistant wire is a multilayer strand including at least one core layer and at least one outer layer including one or more resin compositions and a biochemical active material, and the core layer is composed of a material with a tensile break strength higher than that of the outer layer. The vascular embolization device has the function of administering a biochemical active material and also has good flexibility.

Abstract: A vascular embolization device having the function of administering a biochemical active material and also having high flexibility is provided. Specifically, the vascular embolization device includes a coil and a biochemical active material-containing resin wire inserted in the inside of the coil, in which the resin wire is a multilayer strand including a core and at least one outer layer, and the core and the at least one outer layer individually include resin compositions with solubilities different from each other in the same organic solvent.

Abstract: Disclosed herein is a medical wire with an intracorporeally indwelling member connected to the leading end part of a conductive wire through a thermally-fusible connecting member, wherein the contact of the leading end part of the conductive wire with the intracorporeally indwelling member can be surely prevented even when the connecting member is deformed. The medical wire comprises a conductive wire and an intracorporeally indwelling member connected to the leading end part of the conductive wire through a thermally-fusible connecting member, in which the connecting member is heated and fused by a high-frequency current supplied through the conductive wire, thereby releasing the intracorporeally indwelling member, wherein a non-conductive spacer for preventing the contact of the intracorporeally indwelling member with the conductive wire is provided between them.

Abstract: Disclosed herein is a medical wire with an intracorporeally indwelling member connected to the leading end part of a conductive wire body through a thermally-fusible connecting member, wherein expected heat generation can be achieved even when a conductive member that causes leak comes into contact with the leading end part of the conductive wire body, and thus the intracorporeally indwelling member can be surely released.

Abstract: Disclosed herein is a medical wire with an intracorporeally indwelling member connected to the leading end part of a conductive wire body through a thermally-fusible connecting member, wherein expected heat generation can be achieved even when a conductive member that causes leak comes into contact with the leading end part of the conductive wire body, and thus the intracorporeally indwelling member can be surely released.

Abstract: The medical catheter tube of the present invention integrally has an inner layer tube; reinforcement material layers formed by placing element wires on the inner layer tube; a marker; and an outer layer tube. The element wires, which are first and the other element wires, for forming the reinforcement material layers are synthetic resin element wires and/or metallic element wires, the first element wires are placed in the axis direction of the catheter to form the first reinforcement material layer, and the other element wires are wound in a coil form on the first reinforcement material layer, in the circumferential direction of the catheter, to cover the first reinforcement material layer. The marker is flexible to deformation. Because of the presence of the reinforcement material layer and the outer layer tube, flexural rigidity from a base section to a head section is reduced in a stepped or continuous manner.

Abstract: Disclosed herein is a medical wire with an intracorporeally indwelling member connected to the leading end part of a conductive wire through a thermally-fusible connecting member, wherein the contact of the leading end part of the conductive wire with the intracorporeally indwelling member can be surely prevented even when the connecting member is deformed. The medical wire comprises a conductive wire and an intracorporeally indwelling member connected to the leading end part of the conductive wire through a thermally-fusible connecting member, in which the connecting member is heated and fused by a high-frequency current supplied through the conductive wire, thereby releasing the intracorporeally indwelling member, wherein a non-conductive spacer for preventing the contact of the intracorporeally indwelling member with the conductive wire is provided between them.

Abstract: Disclosed herein are a medical implement and a method, by which the length or volume of an implanted device actually deposited can be changed or adjusted even after inserted into a patient's body, and thus an implanted device of an appropriate length or volume can be deposited. The medical implement for depositing an implanted device comprises a catheter which is to be inserted into a patient's body and has an electrode at its distal part, and a wire device guided by the catheter. The wire device comprises a wire and the implanted device connected to the distal end of the wire through a first severable joint member. The implanted device has a structure that a plurality of implanted elements are joined to each other through one or more second severable joint members, successively. The first joint member or any one of the second joint members is severed in a state that the implanted device is projected from the distal end of the catheter.

Abstract: A coiled embolizing material which can surely embolize an application site or dilatation without extending either end portion thereof out of the dilatation. The distal end portion and/or the proximal end portion of the coiled embolizing material are curved inward in a radial direction of a coil thereof. A push-out means for the embolizing material is detachably connected to the coiled embolizing material.

Abstract: A medical wire includes a conductive guide wire and an implanted device, which are connected to each other through a joint member. The joint member is heated by applying a high-frequency current through the guide wire, whereby the joint member is melted and severed so as to detach the implanted device from the guide wire. The joint member is composed of a rod of a swelling resin, the outer diameter of which increases by at least 10% when brought into contact with water. The medical wire may be inserted into a patient's body through a catheter arranged in the patient's body, during which an impedance reducing phenomenon that occurs between the guide wire and a counter electrode provided on the patient's body is detected, thereby confirming that the implanted device has been deposited properly in the patient's body.

Abstract: A high frequency heating power device for an implanted device comprises a switch circuit, an input/output circuit, a high-frequency signal generating circuit, and a check circuit. When a high frequency output circuit applies a high frequency measuring voltage between a guide wire and the body ground board, a voltage is detected which corresponds to the impedance of a circuit which is made up of lead wires, the guide wire, the patient's body, and the body grounding board. It is determined by a discriminating circuit whether or not the voltage thus detected is in a predetermined allowable voltage range. The operator is informed of the discrimination by means of a display circuit and a buzzer circuit, so that he can determine the position of the end of the guide wire with respect to the end of the catheter with ease.

Abstract: A medical wire includes a conductive wire body and an implanted device connected to the distal end of the wire body through a joint member. The medical wire is inserted through a patient's tubular organ, thereby guiding the implanted device to the intended site in the patient's body. In this state, a monopolar high-frequency current is applied to the joint member through the wire body, thereby heating the joint member to cause it melt and sever, whereby the implanted device is detached from the wire body. There are thus provided a medical wire having an implanted device, which permits depositing the implanted device at the intended site in the patient's body by a simple operation within a short period of time, a mechanism which is simple in structure and highly reliable, and a method for depositing the implanted device of the medical wire is also provided.