IP Library › Granted Patent US 12,447,316
Granted Patent B2
US 12,447,316 · App. 18/315,740 · Granted Oct 21, 2025

Expandable introducer sheath to preserve guidewire access

Inventors: Laveille Kao Voss (Belmont, CA); Kelly J. McCrystle (Menlo Park, CA); Arkady Kokish (Los Gatos, CA)
Assignee: Abbott Laboratories
A61M25/04A61B17/0057A61B17/0644A61B17/3439A61M25/0017A61M25/0662A61B2017/00668A61B2017/0645A61B17/068A61B2017/22039A61B2017/3445A61B2090/037A61M2025/0024A61M2025/0035
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Quick Facts
Patent No.
US 12,447,316
App. No.
18/315,740
Granted
Oct 21, 2025
Kind
B2
Abstract

An introducer sheath is described. The introducer sheath may include a tubular body. The tubular body may extend from a distal end toward a proximal end. The tubular body may include a lumen. The lumen may at least partially be defined by a wall. A channel may be disposed within the wall. The channel may be configured to receive a guidewire. The tubular body may include an expandable portion expandable to increase a cross-sectional area of the lumen.

Claims (46)

1. A medical device comprising:

a valve; and

an elongate member distal a hub portion and forming a lumen extending to a distal end of the elongate member, the elongate member comprising:

a plurality of elastic portions forming a surface of the lumen, wherein deformation of the plurality of elastic portions changes a shape of the surface of the lumen and an outer surface of the elongate member; and

a plurality of sheath portions that are stiffer than the plurality of elastic portions, the plurality of elastic portions and the plurality of sheath portions being disposed in alternating fashion circumferentially around the elongate member,

wherein the plurality of elastic portions and the plurality of sheath portions extend into a distal end of the hub portion.

2. The medical device of claim 1 , wherein the plurality of elastic portions are elastic strips extending from a distal end to towards a proximal end of the elongate member.

3. The medical device of claim 1 , wherein the plurality of elastic portions is configured to reduce in thickness upon expansion of the elongate member.

4. The medical device of claim 1 , wherein a sheath portion of the plurality of sheath portions comprises a radially extending surface adjacent an elastic portion of the plurality of elastic portions, a circumferentially extending surface, and an inner circumferentially extending surface forming at least a portion of the lumen of the elongate member.

5. The medical device of claim 4 , wherein the elastic portion overlaps the radially extending surface and the circumferentially extending surface.

6. The medical device of claim 4 , wherein the elastic portion of the plurality of elastic portions forms an outer surface of the elongate member.

7. The medical device of claim 1 , wherein the valve is contained within a hub portion.

8. A medical device comprising:

a lumen extending from a proximal end to a distal end, the lumen comprising a first lumen portion containing a valve and a second lumen portion extending distally from the valve, at least a portion of the second lumen being formed from:

a plurality of elastic portions forming a surface of the lumen, wherein deformation of the plurality of elastic portions changes a shape of the surface of the lumen; and

a plurality of sheath portions that are stiffer than the plurality of elastic portions, the plurality of elastic portions and the plurality of sheath portions being disposed in alternating fashion circumferentially around the lumen,

wherein the plurality of elastic portions and the plurality of sheath portions extend into a tapered distal end of the first lumen portion.

9. The medical device of claim 8 , wherein the plurality of elastic portions are elastic strips extending from a distal end to towards the proximal end of the lumen.

10. The medical device of claim 8 , wherein the plurality of elastic portions is configured to reduce in thickness upon expansion.

11. The medical device of claim 8 , wherein a sheath portion of the plurality of sheath portions comprises a radially extending surface, a circumferentially extending surface, and an inner circumferentially extending surface forming at least a portion of the lumen.

12. The medical device of claim 11 , wherein an elastic portion of the plurality of elastic portions overlaps the radially extending surface and the circumferentially extending surface.

13. The medical device of claim 11 , wherein an elastic portion of the plurality of elastic portions forms an outer surface of the medical device.

14. The medical device of claim 8 , wherein each of the plurality of elastic portions has a uniform thickness.

15. The medical device of claim 8 , wherein each of the plurality of elastic portions stretch elastically along an arc that curves starting from a first surface of a wall of an elongate member and terminating at a second surface of the wall.

16. A method comprising:

deploying a first medical device into a body lumen, the first medical device comprising:

a device receiving hub portion with a port and a valve; and

an elongate member extending from the hub portion and forming a lumen extending to a distal end of the elongate member, the elongate member comprising:

a plurality of elastic portions forming a surface of the lumen, wherein deformation of the plurality of elastic portions changes a shape of the surface of the lumen and an outer surface of the elongate member; and

a plurality of sheath portions that are stiffer than the plurality of elastic portions, the plurality of elastic portions and the plurality of sheath portions being disposed in alternating fashion circumferentially around the elongate member,

wherein the plurality of elastic portions and the plurality of sheath portions extend into a distal end of the hub portion; and

deploying a second medical device through the hub portion and the lumen of the elongate member.

17. The method as recited in claim 16 , wherein deploying the second medical device further comprises expanding the lumen from a first diameter to a second diameter.

18. The method as recited in claim 16 , wherein a sheath portion of the plurality of sheath portions comprises a radially extending surface, a circumferentially extending surface, and an inner circumferentially extending surface forming at least a portion of a lumen of the elongate member.

19. The method as recited in claim 16 , wherein an elastic portion of the plurality of elastic portions overlaps a radially extending surface and the circumferentially extending surface.

20. The method as recited in claim 16 , wherein an elastic portion of the plurality of elastic portions forms an outer surface of the elongate member.

21. A method comprising:

deploying a first medical device into a body lumen, the first medical device comprising:

a lumen extending from a proximal end to a distal end, the lumen comprising a first lumen portion containing a valve and a second lumen portion extending distally from the valve, at least a portion of the second lumen being formed from:

a plurality of elastic portions forming a surface of the lumen, wherein deformation of the plurality of elastic portions changes a shape of the surface of the lumen; and

a plurality of sheath portions that are stiffer than the plurality of elastic portions, the plurality of elastic portions and the plurality of sheath portions being disposed in alternating fashion circumferentially around the lumen,

wherein the plurality of elastic portions and the plurality of sheath portions extend into a tapered distal end of the first lumen portion; and

deploying a second medical device through the lumen.

22. The method as recited in claim 21 , wherein deploying the second medical device further comprises expanding the lumen from a first diameter to a second diameter.

23. The method as recited in claim 21 , wherein a sheath portion of the plurality of sheath portions comprises a radially extending surface, a circumferentially extending surface, and an inner circumferentially extending surface forming at least a portion of the lumen.

24. The method as recited in claim 21 , wherein an elastic portion of the plurality of elastic portions overlaps a radially extending surface and a circumferentially extending surface.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 12, 2023
From: VOSS, LAVEILLE KAO; MCCRYSTLE, KELLY J.; KOKISH, ARKADY
To: ABBOTT LABORATORIES
Reel/Frame 063620/0542 →
Continuity (11)
Continuation 16951289 · Nov 18, 2020
Continuation 15861970 · Jan 4, 2018
Continuation 13835570 · Mar 15, 2013
Continuation In Part 12696792 · Jan 29, 2010
Continuation In Part 12696837 · Jan 29, 2010
Continuation In Part 11767947 · Jun 25, 2007
Continuation In Part 11767947 · Jun 25, 2007
Continuation In Part 11427308 · Jun 28, 2006
Continuation In Part 11427308 · Jun 28, 2006
Continuation In Part 11427308 · Jun 28, 2006
Related Publication 20230277811A1 · Sep 7, 2023
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US 12,576,263 US 12,589,237 US 12,599,749