Laser-cut clot puller
View Patent ↗A device for removing blood clots and methods of making and using the same. The clot pulling device may include a first spine, a second spine disposed parallel to the first spine, and a basket disposed between and coupled to the spines. In addition, a pushing member may be coupled to the first spine and extend proximally therefrom.
1. A medical device for removing clots from a blood vessel, comprising:
a first longitudinally-oriented spine having a proximal end;
a first elongate member coupled to the proximal end of the first longitudinally-oriented spine and extending proximally therefrom;
a second longitudinally-oriented spine, longitudinally movable relative to the first spine, and having a proximal end;
a second elongate member coupled to the proximal end of the second longitudinally-oriented spine and extending proximally therefrom; and
a clot-grabbing basket generally disposed between and coupled to the first and second longitudinally-oriented spines, wherein the basket includes one or more loop structures having a first portion connected to the first spine and a second portion connected to the second spine,
wherein the basket further includes a proximal end and a distal end, wherein the proximal and distal ends are each attached to the first and second longitudinally-oriented spines, and wherein both the proximal and distal ends of the basket are open.
2. The medical device of claim 1 , wherein the first and second portions of the one or more loop structures are approximately opposite each other.
3. The medical device of claim 1 , wherein the proximal end of the basket is open.
4. The medical device of claim 1 , wherein the distal end of the basket is open.
5. The medical device of claim 1 , the basket further comprising an end loop that traverses the distal end of the basket.
6. The medical device of claim 1 , wherein the first and second longitudinally-oriented spines each includes a nickel-titanium alloy.
7. The medical device of claim 1 , wherein the basket includes a nickel-titanium alloy.
8. The medical device of claim 1 , wherein the basket is adapted to shift between a first generally collapsed configuration and a second generally expanded configuration.
9. The medical device of claim 8 , wherein the basket is biased to be in the second configuration.
10. The medical device of claim 8 , wherein the basket is biased to be in the first configuration, and the basket is configured to shift from the first configuration to the second configuration when the first and second elongate members are moved longitudinally relative to each other.
11. The medical device of claim 8 , wherein the basket is configured to shift from the first configuration to the second configuration by distally advancing one of the first and second elongate members relative to the other.
12. The medical device of claim 8 , wherein the basket includes a shape memory material, and wherein the basket can be shifted between the first configuration and the second configuration by altering the temperature of the basket.
13. The medical device of claim 8 , wherein the first longitudinally-oriented spine and the second longitudinally-oriented spine are closer together when the basket is in the first configuration and the first longitudinally-oriented spine and the second longitudinally-oriented spine move further apart when the basket shifts toward the second configuration.
14. The medical device of claim 1 , wherein at least one of the first longitudinally-oriented spine, the second longitudinally-oriented spine, and the basket includes a marker member coupled thereto.