Thrombectomy apparatuses and methods

Patent metadata

Field	Value
Publication number	US-11986196-B2
Application number	US-202117519551-A
Country	US
Kind code	B2
Filing date	Nov 4, 2021
Priority date	Feb 18, 2021
Publication date	May 21, 2024
Grant date	May 21, 2024

Abstract

Methods and apparatuses for removing material (e.g., clot) from within a body, including inverting thrombectomy apparatuses. These methods and apparatuses may include methods and apparatuses for reusing portion of the devices, method and apparatuses for loading and reloading the inverting thrombectomy apparatuses, and methods and apparatuses for improving and enhancing the ability of the inverting thrombectomy apparatuses to remove clot.

First claim

What is claimed is:

1. An introducer apparatus, the apparatus comprising:
a flexible knitted or woven tube;
a puller coupled to one end of the knitted or woven tube;
an outer cover extending over the knitted or woven tube;
an inner cover extending at least partially within a lumen of the knitted or woven tube;
wherein the flexible knitted or woven tube is longitudinally movable relative to the outer cover and the inner cover; and
a handle portion continuous with the outer cover and the inner cover, wherein the handle portion comprise a frangible region that is configured to be broken along a predetermined tear line extending through the handle portion, the inner cover and the outer cover so that the handle portion, inner cover and outer cover are peeled away from the flexible knitted or woven tube after breaking the frangible region.

2. The apparatus of claim 1 , wherein the outer cover comprises a distal end configured to mate with a sheath hub so that the flexible knitted or woven tube is driven out of the introducer apparatus and into the sheath hub.

3. The apparatus of claim 2 , wherein the distal end comprises a mating engagement configured to mate with the sheath hub.

4. The apparatus of claim 1 , wherein the handle portion comprises an opening through the handle portion that is continuous with the lumen of the knitted or woven tube.

5. The apparatus of claim 1 , further comprising a second tear line extending from the frangible region through both the outer cover and the inner cover.

6. The apparatus of claim 1 , wherein the predetermined tear line extends from a proximal end to a distal end of the introducer apparatus, wherein the handle portion is on the proximal end of the introducer apparatus.

7. The apparatus of claim 1 , wherein the handle portion is configured to be grasped by one hand.

8. The apparatus of claim 1 , wherein the handle portion is T-shaped.

9. The apparatus of claim 1 , wherein a distal end of the outer cover is tapered.

10. The apparatus of claim 1 , wherein the predetermined tear line is perforated.

11. An introducer apparatus, the apparatus comprising:
a flexible knitted or woven tube;
a puller coupled to one end of the knitted or woven tube, the woven tube including a portion inverted over an end of the puller;
an outer cover extending over the knitted or woven tube;
an inner cover extending at least partially between at least a portion of the inverted portion of the knitted or woven tube and the puller;
wherein the flexible knitted or woven tube is longitudinally movable relative to the outer cover and the inner cover; and
a handle portion connected to the outer cover and the inner cover, wherein the handle portion comprise a predetermined tear line extending through the handle portion, the inner cover and the outer cover so that the handle portion, inner cover and outer cover are peeled away from the flexible knitted or woven tube after breaking the frangible region.

12. The apparatus of claim 11 , wherein the outer cover comprises a distal end configured to mate with a sheath hub so that the flexible knitted or woven tube is driven out of the introducer apparatus and into the sheath hub.

13. The apparatus of claim 12 , wherein the distal end comprises a mating engagement configured to mate with the sheath hub.

14. The apparatus of claim 11 , wherein the handle portion comprises an opening though the handle portion that is continuous with the lumen of the knitted or woven tube.

15. The apparatus of claim 11 , further comprising a second tear line extending from the frangible region through both the outer cover and the inner cover.

16. The apparatus of claim 11 , wherein the predetermined tear line extends from a proximal end to a distal end of the introducer apparatus, wherein the handle portion is on the proximal end of the introducer apparatus.

17. The apparatus of claim 11 , wherein the handle portion is configured to be grasped by one hand.

18. The apparatus of claim 11 , wherein a distal end of the outer cover is tapered.

19. The apparatus of claim 11 , wherein the predetermined tear line is perforated.

20. An introducer apparatus, the apparatus comprising:
a flexible knitted or woven tube;
a puller coupled to one end of the knitted or woven tube, the woven tube including a portion inverted over an end of the puller;
an outer cover extending over the knitted or woven tube;
an inner cover extending at least partially between at least a portion of the inverted portion of the knitted or woven tube and the puller;
wherein the flexible knitted or woven tube is longitudinally movable relative to the outer cover and the inner cover; and
a handle portion connected to the outer cover and the inner cover, wherein the handle portion comprises a first predetermined tear line and a second predetermined tear line, the first and the second predetermined tear lines extending through the handle portion, the inner cover and the outer cover.

Assignees

• Boston Scient Scimed Inc

Inventors

• Wallace Michael P
• Leguidleguid Roy
• Delos Santos Jayson
• Tang Winnie
• Turovskiy Michael
• Garabedian Robert

Classifications

• A61B17/221 Primary

  Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)} · CPC title

• A61B17/32075

  Pullback cutting; combined forward and pullback cutting, e.g. with cutters at both sides of the plaque · CPC title

• A61B2017/00292

  mounted on or guided by flexible, e.g. catheter-like, means · CPC title

• A61B2017/00367

  Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like · CPC title

• A61B2017/00867

  shape memory effect · CPC title