Manufacturing method for catheter and manufacturing apparatus for catheter
AssigneeTerumo Kabushiki Kaisha
InventorsYuuji MOTOSE, Tsutomu SUGIKI
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Abstract
A method for manufacturing a catheter in which a catheter body is formed by fusing a first member and a second member. The method includes irradiating an adjacent portion between the first member and the second member with a laser beam in a close state and in an external force application state to fuse the adjacent portion. In the close state, an elastically deformable elastic body having laser transmission property and having a hollow portion through which the first member and the second member are insertable with a gap at no load is brought into contact with the first member and the second member in the hollow portion due to elastic deformation to bring the first member and the second member close to each other.
Claims20
A manufacturing method for manufacturing a catheter including a catheter body formed by fusing a first member and a second member, the manufacturing method comprising
- irradiating an adjacent portion between the first member and the second member with a laser beam to fuse the adjacent portion in a close state and in an external force application state, the close state being a state in which an elastically deformable elastic body having laser transmission property and having a hollow portion in which the first member and the second member are positioned is in contact with the first member and the second member in the hollow portion due to elastic deformation of the elastic body, the external force application state being a state in which a component having the laser transmission property and having a rigidity greater than the elastic body applies an external force to the elastic body to limit a decrease in force due to the elastic deformation for bringing the first member and the second member close to each other.
A manufacturing method for manufacturing an elongated medical device, the manufacturing method comprising:
- disposing a tubular member in a hollow portion of an elastic body, the tubular body extending in an axial direction from one axial end of the tubular member to an opposite axial end of the tubular member, the disposing of the tubular member in the hollow portion of the elastic body including disposing the tubular member in the hollow portion of the elastic body so that an end portion of the tubular member, inclusive of the one axial end of the tubular member, is located in the hollow portion of the elastic body, the elastic body having laser transmission property;
- applying an external force to the elastic body by at least one of two components, the two components being a first component and a second component that are both positioned outside the elastic body, the first component being positioned radially outside the elastic body in a radial direction that intersects the axial direction, the second component being positioned axially outside the elastic body in the axial direction, the first component having laser transmission property, the at least one of the two components that applies the external force to the elastic body being in contact with the elastic body during the applying of the external force;
- and
- emitting a laser beam through the first component and the elastic body to the distal portion of the tubular member that is located in the hollow portion of the elastic body to deform the distal portion of the tubular member, the laser beam having a wavelength that generates heat by radiation heating in the distal portion of the tubular member.
A manufacturing method for manufacturing an elongated medical device, the manufacturing method comprising:
- positioning an elastic body and a tubular member relative to one another so that a distal portion of the tubular member is located in a hollow portion of the elastic body and an outer surface of the tubular member faces an inner surface of the elastic body, the elastic body having laser transmission property, the tubular member extending in an axial direction;
- positioning a component relative to the elastic body so that an inner surface of the component faces an outer surface of the distal portion of the tubular member, the component having laser transmission property;
- applying an external force to the elastic body to press the inner surface of the elastic body to the outer surface of the distal portion of the tubular member;
- and
- irradiating the distal portion of the tubular member with a laser beam by virtue of the laser beam passing through the component and the elastic body, the irradiating of the distal portion of the tubular member being performed to generate heat, by radiation heating, in the distal portion of the tubular member.
Dependencies are inferred from the claim text.