IP Library Granted Patent US 10,857,012
Granted Patent B2
US 10,857,012 · App. 16/010,481 · Granted Dec 8, 2020

Vascular implant

Inventors: Stephen J. Hebert (San Francisco, CA); Bartosz Bojanowski (San Francisco, CA)
Assignee: Neurogami Medical, Inc.
A61F2/88A61B17/1215A61B17/12031A61B17/12113A61B17/12118A61B17/12145A61B17/12163A61B2017/00526A61B2017/12054A61B2090/3966A61F2/07A61F2/90A61F2002/068A61F2002/823A61F2210/0004A61F2230/0091
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Quick Facts
Patent No.
US 10,857,012
App. No.
16/010,481
Granted
Dec 8, 2020
Kind
B2
Abstract

A vascular implant configured for occluding a vasculature of a patient having a biocompatible polymeric structure formed of a plurality of filaments spaced to maintain surface porosity and an inner radiopaque coil positioned within the longitudinally extending opening of the polymeric structure and attached to the polymeric structure. The polymeric structure and radiopaque coil are attached forming a joint at the distal end.

Claims (27)

1. A vascular implant configured for occluding a vasculature of a patient, the vascular implant comprising:

a biocompatible polymeric structure formed of a plurality of filaments and having a proximal end and a distal end, the filaments spaced to maintain surface porosity, the polymeric structure forming a tubular body having a first longitudinally extending opening; and

a radiopaque coil having a proximal end and a distal end, the radiopaque coil positioned within the longitudinally extending opening of the polymeric structure, wherein the polymeric structure and radiopaque coil are attached forming a joint at the distal end of the radiopaque coil along a length extending for at least 0.002 inches and not exceeding a length of about 0.050 inches;

wherein the polymeric structure is a closed cell braid, the braid remaining closed cell when in a curved shape and the filaments form a plurality of yarns, the plurality of yarns having spaces therebetween for blood inflow between the yarns, and the polymeric structure is configured to trap blood to promote stasis.

2. The implant of claim 1 , wherein the joint is formed where the polymeric structure covers at least two coil windings of the radiopaque coil.

3. The implant of claim 2 , wherein the two coil windings are distalmost windings of the radiopaque coil.

4. The implant of claim 2 , wherein the two coil windings are spaced proximally of a distalmost end of the radiopaque coil.

5. The implant of claim 1 , wherein the joint of the polymeric structure and radiopaque coil is formed by application of energy to bond the polymeric structure and radiopaque coil.

6. The implant of claim 1 , wherein the joint of the polymeric structure and radiopaque coil is formed by an adhesive to bond the polymeric structure and radiopaque coil.

7. The implant of claim 1 , wherein the polymeric structure and radiopaque coil are attached forming a joint along a length of about 0.004 inches to about 0.020 inches.

8. The implant of claim 1 , further comprising a metal tube attached to a proximal end of the radiopaque coil, wherein the polymeric structure and metal tube are attached to form a proximal joint along a length extending for at least 0.002 inches and not exceeding a length of about 0.050 inches.

9. The implant of claim 8 , wherein the proximal joint of the polymeric structure and metal tube is formed by one of application of energy or an adhesive to bond the polymeric structure and metal tube.

10. The implant of claim 8 , wherein the polymeric structure is further attached to the radiopaque coil to form the proximal joint, the proximal joint formed by one of application of energy or an adhesive to bond the polymeric structure, metal tube and radiopaque coil.

11. The implant of claim 1 , wherein the polymeric structure has a series of peaks and valleys along a surface of a wall to increase flexibility, the peaks and valleys formed by crimping of the polymeric structure.

12. The implant of claim 1 , wherein the polymeric structure and radiopaque coil are attached so that the joint extends continuously along a length of the joint.

13. A vascular implant configured for occluding a vasculature of a patient, the vascular implant comprising:

a biocompatible polymeric structure formed of a plurality of filaments and having a proximal end and a distal end, the filaments spaced to maintain surface porosity, the polymeric structure forming a tubular body having a first longitudinally extending opening; and

an inner element composed of a radiopaque coil having a proximal end and a distal end, the radiopaque coil positioned within the longitudinally extending opening of the polymeric structure, wherein the polymeric structure and radiopaque coil are attached to form a joint at the distal end of the radiopaque coil along a length wherein the joint covers at least two coil windings of the radiopaque coil;

wherein the polymeric structure is a closed cell braid, the braid remaining closed cell when in a curved shape and the filaments form a plurality of yarns, the plurality of yarns having spaces therebetween for blood inflow between the yarns, and the polymeric structure is configured to trap blood to promote stasis.

14. The implant of claim 13 , wherein the joint of the polymeric structure and radiopaque coil is formed by application of energy to bond the polymeric structure and radiopaque coil or by an adhesive to bond the polymeric structure and radiopaque coil.

15. The implant of claim 13 , wherein the at least two coil windings are distalmost coils of the radiopaque coil.

16. The implant of claim 13 , wherein the at least two coil windings of the radiopaque coil are spaced from a distalmost end of the radiopaque coil.

17. A vascular implant configured for occluding a vasculature of a patient, the vascular implant comprising:

a biocompatible polymeric structure formed of a plurality of filaments and having a proximal end and a distal end, the filaments spaced to maintain surface porosity, the polymeric structure forming a tubular body having a first longitudinally extending opening;

and an inner element composed of a radiopaque coil having a proximal end and a distal end, the radiopaque coil positioned within the longitudinally extending opening of the polymeric structure, wherein the polymeric structure and radiopaque coil are attached at a plurality of discrete regions at a distal portion of the radiopaque coil, wherein a distance from a proximalmost discrete region to a distalmost discrete region is between about 0.002 inches and about 0.050 inches;

wherein the polymeric structure is a closed cell braid, the braid remaining closed cell when in a curved shape and the filaments form a plurality of yarns, the plurality of yarns having spaces therebetween for blood inflow between the yarns, and the polymeric structure is configured to trap blood to promote stasis.

18. The implant of claim 17 , wherein the polymeric structure has a series of peaks and valleys along a surface of a wall to increase flexibility, the peaks and valleys formed by crimping of the polymeric structure.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Jan 16, 2025
From: CEDAR'S CAPITAL LLC; FOLEY, KEVIN, DR.
To: NEUROGAMI MEDICAL, INC.
Reel/Frame 069898/0168 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 16, 2025
From: NEUROGAMI MEDICAL, INC.
To: KFNT HOLDINGS, LLC
Reel/Frame 069899/0608 →
SECURITY INTEREST Recorded Aug 1, 2023
From: NEUROGAMI MEDICAL, INC.
To: CEDAR'S CAPITAL LLC; FOLEY, KEVIN, DR.
Reel/Frame 064452/0642 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2018
From: HEBERT, STEPHEN J.; BOJANOWSKI, BARTOSZ
To: NEUROGAMI MEDICAL, INC.
Reel/Frame 046882/0756 →
Continuity (6)
Continuation In Part 15887903 · Feb 2, 2018
Continuation In Part 14997094 · Jan 15, 2016
Provisional Application 62524419 · Jun 23, 2017
Provisional Application 62457871 · Feb 11, 2017
Provisional Application 62105648 · Jan 20, 2015
Related Publication 20180325706A1 · Nov 15, 2018