Medical device with a removable liner

Patent metadata

Field	Value
Publication number	US-2016199067-A1
Application number	US-201614989604-A
Country	US
Kind code	A1
Filing date	Jan 6, 2016
Priority date	Jan 8, 2015
Publication date	Jul 14, 2016
Grant date	—

Abstract

Medical devices, medical device systems, and methods for making and using the same are disclosed. An example medical device system may include a catheter shaft having a proximal end. A removable liner may extend through the catheter shaft. The removable liner may be designed to deliver a medical substance to a target region. The removable liner may be designed to be removed from the catheter shaft if the removable liner becomes plugged. The system may also include a replacement liner. The replacement liner may be designed to be inserted within the catheter shaft after the removal of the removable liner. A support member may be disposed along the replacement liner.

First claim

What is claimed is:

1 . A medical device system, comprising:
a catheter shaft having a proximal end; a removable liner extending through the catheter shaft; wherein the removable liner is designed to deliver a medical substance to a target region; wherein the removable liner is designed to be removed from the catheter shaft if the removable liner becomes plugged; a replacement liner; wherein the replacement liner is designed to be inserted within the catheter shaft after the removal of the removable liner; and a support member disposed along the replacement liner.

2 . The system of claim 1 , wherein the catheter shaft includes a first hub and wherein the removable liner includes a second hub designed to engage the first hub.

3 . The system of claim 2 , wherein the first hub, the second hub, or both include a threaded connector.

4 . The system of claim 1 , wherein the catheter shaft includes a reinforcing member.

5 . The system of claim 1 , wherein the removable liner includes a reinforcing member.

6 . The system of claim 1 , wherein the replacement liner defines a lumen and wherein the support member includes a delivery stylet disposed within the lumen.

7 . The system of claim 1 , wherein the support member includes a breakaway sheath disposed along an outer surface of the replacement liner.

8 . The system of claim 1 , wherein the removable liner, the replacement liner, or both are designed to shift between a collapsed configuration and a non-collapsed configuration.

9 . The system of claim 1 , wherein the removable liner, the replacement liner, or both include a temporary distal seal member.

10 . A medical device, comprising:
a tubular member having a proximal end region and a distal end region; a first hub member coupled to the proximal end region; a removable liner extending through the tubular member; wherein the removable liner is free from attachment with the tubular member; a second hub member coupled to the removable liner; wherein the first hub member and the second hub member are designed to be detachably nested with one another; and wherein the removable liner is designed to be removed from the tubular member so that a second liner may be disposed within the tubular member.

11 . The medical device of claim 10 , wherein the tubular member includes a reinforcing member.

12 . The medical device of claim 10 , wherein the removable liner includes a reinforcing member.

13 . The medical device of claim 10 , wherein the removable liner includes a lubricious coating.

14 . The medical device of claim 10 , wherein the removable liner is designed to shift between a collapsed configuration and a non-collapsed configuration.

15 . The medical device of claim 10 , wherein the first hub member, the second hub member, or both include a threaded connector.

16 . The medical device of claim 10 , wherein the removable liner includes a temporary distal seal member.

17 . The medical device of claim 10 , wherein an embolic material delivery device is releasably attached to the removable liner.

18 . A method for treating a body lumen, the method comprising:
positioning an embolic material delivery device adjacent to a target region; wherein the embolic material delivery device comprises:
a catheter shaft,
a removable liner extending through the catheter shaft, and
wherein the removable liner is free from attachment with the catheter shaft;
advancing a first medical substance through the removable liner to a position adjacent to the target region; removing the removable liner from the catheter shaft; advancing a replacement liner through the catheter shaft; and advancing a second medical substance through the replacement liner, wherein the second medical substance is the same as or different from the first medical substance.

19 . The method of claim 18 , wherein the replacement liner is prefilled with the second medical substance.

20 . The method of claim 18 , further comprising advancing a third medical substance through the catheter shaft.

Assignees

• Boston Scient Scimed Inc

Inventors

• Smith Mark S
• Spencer Steven M
• Olson Ross A
• Harrison Kent D

Classifications

• A61M25/0043

  characterised by structural features · CPC title

• A61M2025/0059

  having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking · CPC title

• A61B17/12113

  within an aneurysm · CPC title

• A61M25/0662

  Guide tubes · CPC title

• A61M25/0194

  Tunnelling catheters · CPC title