DELIVERY DEVICE

• US 20140052271A1
• Filed: 08/15/2013
• Published: 02/20/2014
• Est. Priority Date: 08/20/2012
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Amos, Raymond G. Jr.
• Granted Patent: US 9,254,203 B2
• Time in Patent Office: Days
• US Class Current: 623/23.67
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/048 Ureters
• CPC Class Codes: A61M 25/0074 Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
• CPC Class Codes: A61M 25/01 Introducing, guiding, advancing, emplacing or holding catheters A61M25/10 takes precedence
• CPC Class Codes: A61M 25/0102 Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod
• CPC Class Codes: A61M 27/008 pre-shaped, for use in the urethral or ureteral tract

Abstract

A medical device includes an elongate member and a delivery member. The elongate member has a retention portion and defining a lumen. The retention portion has a first configuration and a second configuration different than the first configuration. The retention portion is biased to the first configuration. The delivery member has a collapsed configuration and an expanded configuration. The delivery member is configured to be disposed within the lumen of the elongate member to move the retention portion of the elongate member from the first configuration to the second configuration.

Claims

1. A medical device, comprising:

an elongate member having a retention portion and defining a lumen, the retention portion having a first configuration and a second configuration different than the first configuration, the retention portion being biased to the first configuration; and

a delivery member, the delivery member having a collapsed configuration and an expanded configuration, the delivery member being configured to be disposed within the lumen of the elongate member to move the retention portion of the elongate member from the first configuration to the second configuration.

2. The medical device of claim 1, wherein the delivery member has an outer surface, the outer surface of the delivery member is configured to be coupled to an inner surface of the elongate member when the delivery member is disposed within the lumen of the elongate member and the delivery member is in its expanded configuration.

3. The medical device of claim 1, wherein the elongate member has a sidewall, the sidewall of the elongate member defines a helical opening.

4. The medical device of claim 1, wherein the elongate member has a coil portion, the coil portion including a plurality of coils.

5. The medical device of claim 1, wherein the delivery member includes an inflation chamber and an inflation lumen, the inflation lumen being in fluid communication with the inflation chamber.

6. A medical device, comprising:

an elongate member having a retention portion and defining a lumen; and

a delivery member, the delivery member having a collapsed configuration and an expanded configuration, the delivery member being configured to be disposed within the lumen of the elongate member, the delivery member having an outer surface, the outer surface of the delivery member is configured to be coupled to an inner surface of the elongate member when the delivery member is disposed within the lumen of the elongate member and the delivery member is in its expanded configuration.

7. The medical device of claim 6, wherein the outer surface of the delivery member is configured to be frictionally coupled to the inner surface of the elongate member.

8. The medical device of claim 6, wherein the elongate member has a sidewall, the sidewall of the elongate member defines a helical opening.

9. The medical device of claim 6, wherein the elongate member has a coil portion, the coil portion including a plurality of coils.

10. A method of placing an elongate member into a body of a patient, comprising:

expanding a delivery member from a first configuration to a second configuration to couple an elongate member to the delivery member;

inserting the delivery member into a body of a patient while the elongate member is coupled to the delivery member;

collapsing the delivery member from the second configuration to the first configuration; and

removing the delivery member from the body of the patient.

11. The method of claim 10, wherein the expanding the delivery member includes inflating a portion of the delivery member.

12. The method of claim 10, wherein the expanding the delivery member includes inflating a portion of the delivery member via an inflation lumen of the delivery member.

13. The method of claim 10, further comprising:

inserting at least a portion of the delivery member into a lumen defined by the elongate member.

14. The method of claim 10, wherein the expanding the delivery member from the first configuration to the second configuration frictionally couples the elongate member to an outer surface of the delivery member.

15. The method of claim 10, wherein the expanding the delivery member from the first configuration to the second configuration frictionally couples at least a portion of an inner surface of the elongate member to at least a portion of an outer surface of the delivery member.

16. The method of claim 10, wherein the elongate member includes a coil portion that defines a lumen, the method further comprising:

inserting at least a portion of the delivery member into at least a portion of the lumen defined bye the coil portion of the elongate member prior to the expanding the delivery member from the first configuration to the second configuration.

17. The method of claim 10, wherein the delivery member has a first size in the first configuration and a second size in the second configuration, the first size being greater than the second size.

18. The method of claim 10, wherein the collapsing the delivery member from second configuration to the first configuration decouples the elongate member from the delivery member.

19. The method of claim 10, wherein the elongate member includes a retention member.

20. The method of claim 10, wherein the elongate member defines a helical opening.