Medical retrieval device
First Claim
Patent Images
1. A device comprisinga core wire having a distal end and a proximal end;
- a catheter shaft having a proximal catheter end, a distal catheter end and a lumen through which the core wire is passed such that the distal end of the core wire extends beyond the distal catheter end;
a proximal junction member disposed around the core wire distal to the distal catheter end, wherein the proximal junction member has a lumen through which the core wire is passed;
a distal junction member disposed around the core wire distal to the proximal junction member, wherein the distal junction member has a lumen through which the core wire is passed, wherein at least one of the proximal or distal junction members is permanently and slidably attached to the core wire;
a structure attached to the distal end of the core wire, wherein said structure is sized so that it cannot pass through the lumen of the distal junction member;
a retrieval element having two ends, wherein at least one end is attached to the distal or proximal junction member; and
a stop element.
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Abstract
Compositions comprising devices for retrieving objects from a subject, for example the subject'"'"'s vasculature, are described. In particular, devices including a catheter shaft having a lumen through which a core wire extends are provided. Proximal and distal junction members are disposed around the core wire and at least one junction member is permanently and slidably attached to the core wire. In addition, the device includes a retrieval element as well as a stop element that is attached to the core wire distal to the catheter shaft. Also described are methods of making and using these devices.
154 Citations
29 Claims
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1. A device comprising
a core wire having a distal end and a proximal end; -
a catheter shaft having a proximal catheter end, a distal catheter end and a lumen through which the core wire is passed such that the distal end of the core wire extends beyond the distal catheter end;
a proximal junction member disposed around the core wire distal to the distal catheter end, wherein the proximal junction member has a lumen through which the core wire is passed;
a distal junction member disposed around the core wire distal to the proximal junction member, wherein the distal junction member has a lumen through which the core wire is passed, wherein at least one of the proximal or distal junction members is permanently and slidably attached to the core wire;
a structure attached to the distal end of the core wire, wherein said structure is sized so that it cannot pass through the lumen of the distal junction member;
a retrieval element having two ends, wherein at least one end is attached to the distal or proximal junction member; and
a stop element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification