Medical systems, devices, and related methods

Patent metadata

Field	Value
Publication number	US-12491344-B2
Application number	US-202117179489-A
Country	US
Kind code	B2
Filing date	Feb 19, 2021
Priority date	Feb 27, 2020
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A medical system includes a source of a material, a first tube, and a second tube. The material is configured to expand and form a porous body after the material is deployed into a body lumen. The first tube is configured to deliver the material into the body lumen, and the second tube is configured to apply suction to the porous body.

First claim

We claim:

1 . A medical system comprising:
a source of a material, wherein the material is configured to expand and form a porous body after the material is deployed into a body lumen; a first tube configured to deliver the material into the body lumen; a second tube configured to apply suction to the porous body; and a removal device including a plurality of arms configured to remove the porous body from the body lumen, wherein the removal device is configured to be deployed into the body lumen before the material is deployed into the body lumen, and wherein an entirety of each of the plurality of arms of the removal device is positioned within the porous body; wherein the first tube is coupled to the source of the material, and is configured to spray the material into the body lumen.

2 . The medical system of claim 1 , wherein the material includes a liquid phase polyurethane foam that expands and solidifies when in contact with moisture or air.

3 . The medical system of claim 2 , wherein the liquid phase polyurethane foam includes an open cell foam.

4 . The medical system of claim 2 , wherein the first tube includes at least two lumens, and wherein the liquid phase polyurethane foam includes two liquids, delivered separately through each of the at least two lumens, that solidify and form the porous body when the two liquids come into contact with one another.

5 . The medical system of claim 4 , wherein the material expands to take a shape of a pocket into which the material is delivered.

6 . The medical system of claim 1 , wherein the plurality of arms of the removal device are self-expandable and are formed of a shape memory alloy, and wherein a proximalmost end of each of the plurality of arms is configured to be exposed to the body lumen before the material is deployed into the body lumen.

7 . The medical system of claim 6 , wherein the removal device and the porous body are movable within a first lumen of an insertion device, and wherein proximal movement of the removal device and the porous body within the first lumen of the insertion device at least partially collapses the plurality of arms and the porous body.

8 . The medical system of claim 7 , wherein the second tube is configured to be retracted proximally out of the porous body and into a second lumen of the insertion device before the removal device and the porous body are retracted into the first lumen of the insertion device.

9 . The medical system of claim 1 , wherein the porous body is at least partially biodegradable.

10 . The medical system of claim 1 , wherein a middle portion of at least one of the plurality of arms, proximal of a distal portion of the at least one of the plurality of arms, includes a bend such that the at least one of the plurality of arms expands radially outward and the distal portion of the at least one of the plurality of arms bends radially inward.

11 . The medical system of claim 1 , wherein the porous body is configured to surround at least distal portions of the first tube and the second tube after the material is deployed into the body lumen.

12 . A medical system comprising:
an insertion device; a source of a material, wherein the material is configured to expand and form a porous body after the material is deployed into a body lumen; a first tube extending along an exterior of the insertion device, wherein the first tube is configured to deliver the material into the body lumen; a second tube movable within the insertion device, wherein the second tube is configured to apply suction to the porous body; and a removal device movable within the insertion device, wherein the removal device includes a plurality of arms that expand to form a cage, wherein the cage is configured to remove the porous body from the body lumen, and wherein an entirety of each of the plurality of arms is positioned within the porous body.

13 . The medical system of claim 12 , wherein the cage is configured to be positioned within the body lumen before the material is deployed into the body lumen, wherein the second tube is configured to be positioned within the cage, and wherein the second tube is configured to be retracted proximally out of the porous body and into the insertion device before removal of the porous body and the cage from the body lumen.

14 . The medical system of claim 12 , wherein the plurality of arms independently expand radially outward away from each other such that the cage is open at its distal end, and wherein a middle portion of each of the plurality of arms, proximal of a distal portion of the corresponding arm, includes a bend.

15 . The medical system of claim 12 , wherein the porous body is configured to surround at least distal portions of the insertion device, the first tube, and the second tube after the material is deployed into the body lumen.

16 . A medical system comprising:
a material; a source of the material, wherein the material is configured to expand and form a porous body after the material is deployed into a body lumen; a first tube configured to deliver the material into the body lumen, wherein a proximal end of the first tube is coupled to the source of the material; a second tube configured to apply suction to the porous body separate from the first tube, wherein the second tube is configured to be retracted proximally out of the porous body; and a removal device including a plurality of movable arms, wherein the removal device is configured to remove the porous body from the body lumen separate from the first tube, wherein the removal device is configured to be positioned within the body lumen before the material is deployed into the body lumen, and wherein an entirety of each of the plurality of movable arms is configured to be positioned within the porous body after the material is deployed into the body lumen.

17 . The medical system of claim 16 , wherein the plurality of movable arms are configured to hook onto portions of the porous body, and wherein each of the plurality of movable arms are retractable through a same distal opening of an insertion device.

18 . The medical system of claim 16 , wherein the porous body surrounds at least distal portions of the first tube and the second tube.

19 . The medical system of claim 16 , wherein the removal device includes five movable arms.

Assignees

• Boston Scient Scimed Inc

Inventors

• Lydecker Lauren
• Pic Andrew
• Burke Martin
• Ortiz Garcia Juan Pablo
• Henchie Travis
• Favreau John
• Powers Jessica

Classifications

• A61M2202/0007

  introduced into the body · CPC title

• A61M2025/09141

  made of shape memory alloys which take a particular shape at a certain temperature · CPC title

• A61M2025/091

  having a lumen for drug delivery or suction · CPC title

• A61M2025/09075

  having a core without a coil possibly combined with a sheath · CPC title

• A61M2025/0079

  Separate user-activated means, e.g. guidewires, guide tubes, balloon catheters or sheaths, for sealing off an orifice, e.g. a lumen or side holes, of a catheter · CPC title