Embolectomy devices
First Claim
1. A medical device for removing a foreign object from a body lumen, comprising:
- an elongated member having a proximal section and a distal section;
a support frame attached to the distal section of the elongated member; and
a filter basket having a plurality of filter struts for capturing the foreign object, said plurality of filter struts including a proximal set of filter struts configured to attach the filter basket to a portion of the support frame, and a distal set of filter struts configured to couple the filter basket to the distal section of the elongated member.
8 Assignments
0 Petitions
Accused Products
Abstract
Devices and methods for removing a foreign object from a body lumen are disclosed. An embolectomy device can include a filter basket having a plurality of filter struts forming a cage-like structure that can be expanded to circumferentially surround the incoming foreign object. A support frame including a proximal hoop and one or more rail members may be employed to support the filter basket. The support frame and filter basket can be coupled to a pusher wire that can be used to manipulate the device within the body. In certain embodiments, the filter struts may vary in thickness to impart a desired flexibility characteristic to the device. Methods of manufacturing such devices are also disclosed.
259 Citations
57 Claims
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1. A medical device for removing a foreign object from a body lumen, comprising:
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an elongated member having a proximal section and a distal section;
a support frame attached to the distal section of the elongated member; and
a filter basket having a plurality of filter struts for capturing the foreign object, said plurality of filter struts including a proximal set of filter struts configured to attach the filter basket to a portion of the support frame, and a distal set of filter struts configured to couple the filter basket to the distal section of the elongated member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A medical device for removing a foreign object from a body lumen, comprising:
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an elongated member having a proximal section and a distal section;
a support frame attached to the distal section of the elongated member, said support frame including a proximal hoop and a plurality of rail members; and
a filter basket operatively coupled to the support frame and having a plurality of filter struts for capturing the foreign object, said plurality of filter struts including a proximal set of filter struts configured to attach a proximal section of the filter basket to said at least one rail member, and a distal set of filter struts configured to attach a distal section of the filter basket to a bushing slidably disposed about the distal section of the elongated member. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A medical device for removing a foreign object from a body lumen, comprising:
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an elongated member having a proximal section and a distal section; and
a filter basket operatively coupled to the distal section of the elongated member, said filter basket including a plurality of interconnected filter struts forming a number of basket cells for capturing the foreign object. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A medical device for removing a foreign object from a body lumen, comprising:
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an elongated member having a proximal section and a distal section; and
a filter basket operatively coupled to the distal section of the elongated member, said filter basket including a plurality of interconnected filter struts forming a proximal section and a distal section, wherein selective filter struts forming the distal section of said filter basket are reduced in dimension. - View Dependent Claims (50, 51)
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52. A method of forming an embolectomy device having variable wall thickness, comprising the steps of:
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providing a workpiece of uniform thickness;
machining the workpiece to form a filter basket having a plurality of filter struts; and
selectively reducing the thickness of at least one of said plurality of filter struts to impart a desired characteristic to the embolectomy device. - View Dependent Claims (53, 54, 55, 56, 57)
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Specification