Atraumatic medical retrieval device
View Patent ↗Baskets with atraumatic distal tips allow the capture of material from difficult-to-reach areas of the body, while reducing the risk of tissue damage.
1. A method for manufacturing a basket for a medical retrieval device, comprising:
removing a flat one-piece basket profile from a sheet of material, wherein the one-piece basket profile comprises a plurality of legs and is one of hourglass-shaped and double-looped; and
shaping the one-piece basket profile to form a three-dimensional basket having a substantially atraumatic distal tip, wherein each leg of the plurality of legs intersects at a distal end of the basket.
2. The method of claim 1 , wherein removing the one-piece basket profile comprises one of stamping, etching, photoetching, and laser cutting.
3. The method of claim 1 , wherein shaping the one-piece basket profile comprises one of heat treatment, cold-forming, folding, and twisting.
4. The method of claim 1 , wherein shaping the one-piece basket profile comprises using a ball-shaped die.
5. The method of claim 1 , further including joining a proximal end portion of the three-dimensional basket to a cable.
6. The method of claim 1 , wherein shaping the one-piece basket profile includes folding the one-piece basket profile.
7. The method of claim 1 , wherein the three-dimensional basket includes a tipless distal end.
8. The method of claim 1 , further including applying an anti-slip coating to a surface of the sheet of material before removing the one-piece basket profile therefrom.
9. The method of claim 1 , further including applying an anti-slip coating to an inner surface of at least one leg of the plurality of legs after shaping the one-piece basket profile.
10. The method of claim 1 , further including forming a textured surface of the sheet of material by at least one of etching, pitting, bending, stamping, and machining the sheet of material before removing the one-piece basket profile therefrom.
11. The method of claim 10 , wherein the textured surface of the sheet of material includes at least one of serrations, teeth, and points.
12. The method of claim 1 , further including forming a textured surface of at least one leg of the plurality of legs after shaping the one-piece basket profile.
13. The method of claim 12 , wherein the textured surface of the at least one leg includes at least one of serrations, teeth, and points.
14. The method of claim 1 , wherein in the one-piece basket profile, at least two of the plurality of legs intersect each other at a first terminal end of the one-piece basket profile.
15. The method of claim 14 , wherein in the one-piece basket profile, at least two of the plurality of legs intersect each other at a second terminal end of the one-piece basket profile.
16. A method for manufacturing a basket for a medical retrieval device, comprising:
removing a flat one-piece basket profile from a sheet of material, wherein the one-piece basket profile comprises a plurality of legs and is hourglass-shaped; and
shaping the one-piece basket profile to form a three-dimensional basket having a substantially atraumatic distal tip, wherein each leg of the plurality of legs intersects at a distal end of the basket.
17. The method of claim 16 , further including joining a proximal end portion of the three-dimensional basket to a cable.
18. The method of claim 16 , wherein shaping the one-piece basket profile includes folding the one-piece basket profile.
19. The method of claim 16 , further including applying an anti-slip coating to a surface of the sheet of material.
20. The method of claim 16 , further including forming a textured surface of the sheet of material by at least one of etching, pitting, bending, stamping, and machining the sheet of material before removing the one-piece basket profile therefrom.
21. The method of claim 16 , further including forming a textured surface of at least one leg of the plurality of legs after shaping the one-piece basket profile.
22. The method of claim 21 , wherein the textured surface of the at least one leg includes at least one of serrations, teeth, and points.
23. The method of claim 16 , wherein in the one-piece basket profile, at least two of the plurality of legs intersect each other at a first terminal end of the one-piece basket profile.
24. The method of claim 23 , wherein in the one-piece basket profile, at least two of the plurality of legs intersect each other at a second terminal end of the one-piece basket profile.
25. A method for manufacturing a basket for a medical retrieval device, comprising:
removing a one-piece basket profile from a sheet of material, the one-piece basket profile includes a plurality of legs and is one of hourglass-shaped and double-looped; and
wherein only after the removal step, the one-piece basket profile is shaped to form a three-dimensional basket having a substantially atraumatic distal tip and each leg of the plurality of legs intersects at a distal end of the basket.
26. The method of claim 25 , further including joining a proximal end portion of the three-dimensional basket to a cable.
27. The method of claim 25 , wherein shaping the one-piece basket profile includes folding the one-piece basket profile.
28. The method of claim 25 , further including applying an anti-slip coating to a surface of the sheet of material.
29. The method of claim 25 , further including forming a textured surface of the sheet of material by at least one of etching, pitting, bending, stamping, and machining the sheet of material before removing the one-piece basket profile therefrom.
30. The method of claim 25 , further including forming a textured surface of at least one leg of the plurality of legs after shaping the one-piece basket profile.
31. The method of claim 30 , wherein the textured surface of the at least one leg includes at least one of serrations, teeth, and points.
32. The method of claim 25 , wherein in the one-piece basket profile, at least two of the plurality of legs intersect each other at a first terminal end of the one-piece basket profile.
33. The method of claim 32 , wherein in the one-piece basket profile, at least two of the plurality of legs intersect each other at a second terminal end of the one-piece basket profile.