OVER-THE-WIRE DETACHMENT MECHANISM
First Claim
1. A detachment mechanism for use in delivering a medical device using a control member over a guidewire comprising:
- a first engagement member including a body having a lumen about a longitudinal axis and configured to receive said guidewire, the first engagement member having a proximal end attached to said control member, a distal end, and at least one notch formed in the first engagement member body proximate the distal end thereof to define at least one interlocking tooth, the at least one notch of the first engagement member body being angled at a first acute angle relative to the longitudinal axis; and
a second engagement member including a body having a lumen about a longitudinal axis and configured to receive said guidewire, the second engagement member having a proximal end, a distal end attached to said medical device, and at least one notch formed in the second engagement member to define at least one interlocking tooth, the at least one notch of the second engagement member body being angled at a second acute angle relative to the longitudinal axis,wherein the at least one notch of each of the first and second engagement members is sized to receive the at least one interlocking tooth of the other of the first and second engagement members such that the first and second members are interlockable to couple said control member to said medical device disposed distal thereto, wherein, when coupled, the lumens of the first and second engagement members are in communication with one another such that said guidewire is passable therethrough.
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Accused Products
Abstract
A detachment mechanism, and methods of use, for use in delivering a medical device preferably over a guidewire are provided. The detachment mechanism includes a first and second engagement member. The members are configured to receive the guidewire and have a first end attached to the control member and the device, respectively, a second end, and a notch formed in the body to form an interlocking tooth. The notch is sized to receive the interlocking tooth of the other member. The members are interlockable to couple the medical device to the control member and to allow the guidewire to pass therethrough. The notch can be angled to permit easier detachment between the members and for better torqueability and pushability/pullability between the control member and the medical device. The members can also include a bend region configured to enhance bendability along a portion of the members.
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Citations
20 Claims
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1. A detachment mechanism for use in delivering a medical device using a control member over a guidewire comprising:
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a first engagement member including a body having a lumen about a longitudinal axis and configured to receive said guidewire, the first engagement member having a proximal end attached to said control member, a distal end, and at least one notch formed in the first engagement member body proximate the distal end thereof to define at least one interlocking tooth, the at least one notch of the first engagement member body being angled at a first acute angle relative to the longitudinal axis; and a second engagement member including a body having a lumen about a longitudinal axis and configured to receive said guidewire, the second engagement member having a proximal end, a distal end attached to said medical device, and at least one notch formed in the second engagement member to define at least one interlocking tooth, the at least one notch of the second engagement member body being angled at a second acute angle relative to the longitudinal axis, wherein the at least one notch of each of the first and second engagement members is sized to receive the at least one interlocking tooth of the other of the first and second engagement members such that the first and second members are interlockable to couple said control member to said medical device disposed distal thereto, wherein, when coupled, the lumens of the first and second engagement members are in communication with one another such that said guidewire is passable therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A detachment mechanism for use in delivering a medical device using a control member comprising:
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a first engagement member and a second engagement member each including a body having a lumen configured to receive a wire, each of the first and second engagement members having a first end connected to said respective control member and medical device, a second, opposite end, and at least one notch formed in the body proximate the second end thereof to form at least one interlocking tooth, the at least one notch of the engagement members being sized to receive the at least one interlocking tooth of the other engagement member, wherein the first and second engagement members are interlockable to couple said medical device to said control member, wherein when coupled the lumens of each of the first and second members are in communication such that said wire is passable therethrough, wherein each of the first and second engagement members includes a bend region configured to enhance bendability along a portion opposite the at least one interlocking tooth of the first and second engagement members. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of delivering an implantable medical device over a guidewire to a treatment site within a body vessel, comprising:
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positioning a control member removably attached to said medical device over said guidewire, the control member comprising a first engagement member having a body defining a lumen about a longitudinal axis, the medical device comprising a second engagement member having a body defining a lumen about the longitudinal axis, the first engagement member coupled to the second engagement member such that the lumens are in communication with each other in order for a distal end of said guidewire to pass therethrough and extend distally past the coupled first and second engagement members; retracting the distal end of said guidewire proximally past the coupled first and second engagement members; and disengaging the first engagement member of the control member from the second engagement member of said medical device so that the medical device is separated from the control member. - View Dependent Claims (19, 20)
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Specification