Guidewire with perfusion capability
First Claim
1. A guidewire for use with a therapeutic device, the guidewire comprising an elongate member shaped for insertion into a body vessel such that a therapeutic device can be guided over the elongate member and into the body vessel, the elongate member having a perfusion lumen extending therethrough from a fluid entry port to exit openings included in a distal portion of the elongate member, the distal portion of the elongate member being constructed to have a retracted state that facilitates introduction of the elongate member into and through the body vessel and an expanded state where the area of the exit openings in the distal portion of the elongate member is increased.
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Accused Products
Abstract
A guidewire is described which includes an elongate member shaped for insertion into a body vessel such that a catheter can be guided over the elongate member and into the body vessel, the elongate member having a perfusion lumen extending therethrough from a proximal end of the elongate member to exit openings included in a distal portion of the elongate member, the distal portion of the elongate member being constructed so that it is has a retracted state that facilitates introduction of the elongate member into and through the body vessel and an expanded state where the area of the exit openings in the distal portion of the elongate member is increased. A method of performing a balloon catheter procedure using the described guidewire, and a system for performing a balloon catheter procedure using the described guidewire are also described.
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Citations
30 Claims
- 1. A guidewire for use with a therapeutic device, the guidewire comprising an elongate member shaped for insertion into a body vessel such that a therapeutic device can be guided over the elongate member and into the body vessel, the elongate member having a perfusion lumen extending therethrough from a fluid entry port to exit openings included in a distal portion of the elongate member, the distal portion of the elongate member being constructed to have a retracted state that facilitates introduction of the elongate member into and through the body vessel and an expanded state where the area of the exit openings in the distal portion of the elongate member is increased.
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21. A method of performing a balloon catheter procedure, the method comprising:
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introducing a guidewire into a body vessel, the guidewire comprising an elongate member having a perfusion lumen extending therethrough from a proximal end of the elongate member to exit openings included in a distal portion of the elongate member, the introduction of the guidewire being performed while the elongate member distal portion is in a retracted state that facilitates introduction of the elongate member into and through the body vessel;
introducing an expandable balloon catheter over the guidewire and into the body vessel; and
perfusing fluid through the guidewire perfusion lumen and out of the exit openings while the balloon catheter is expanded and while the elongate member distal portion is in an expanded state where the area of the exit openings in the distal portion of the elongate member is increased. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A system for performing a balloon catheter procedure, the system comprising:
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a guidewire comprising an elongate member shaped for insertion into a body vessel such that a balloon catheter can be guided over the elongate member and into the body vessel, the elongate member having a perfusion lumen extending therethrough from a proximal end of the elongate member to exit openings included in a distal portion of the elongate member, the distal portion of the elongate member being constructed so that it is has a retracted state that facilitates introduction of the elongate member into and through the body vessel and an expanded state where the area of the exit openings in the distal portion of the elongate member is increased;
an expandable balloon catheter; and
a control system than controls the perfusion of fluid through the guidewire perfusion lumen and out of the exit openings in the distal portion of the elongate member. - View Dependent Claims (29, 30)
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Specification