Clot retrieval device

• US 20080065012A1
• Filed: 05/03/2007
• Published: 03/13/2008
• Est. Priority Date: 05/09/2006
• Status: Active Grant

• Current Assignee: Marc-Alan Levine, Stephen Hebert
• Original Assignee: Marc-Alan Levine, Stephen Hebert
• Inventors: Hebert, Stephen, Levine, Marc-Alan
• Granted Patent: US 7,993,302 B2
• Time in Patent Office: Days
• US Class Current: 604/103.08
• CPC Class Codes: A61B 17/22031 Gripping instruments, e.g. forceps, for removing or smashing calculi A61B17/221 takes precedence
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/00831 Material properties
• CPC Class Codes: A61B 2017/00951 adhesive
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61M 2025/006 having a special surface topography or special surface properties, e.g. roughened or knurled surface
• CPC Class Codes: A61M 2025/09183 having tools at the distal tip
• CPC Class Codes: A61M 2025/1075 having a balloon composed of several layers, e.g. by coating or embedding
• CPC Class Codes: A61M 2025/1088 having special surface characteristics depending on material properties or added substances, e.g. for reducing friction
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• CPC Class Codes: A61M 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/0074 Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
• CPC Class Codes: A61M 25/0082 Catheter tip comprising a tool
• CPC Class Codes: A61M 25/09 Guide wires
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/1027 Making of balloon catheters

Abstract

A device for removing material from a patient'"'"'s body comprising a shaft and an adhesive carrying surface extending from the shaft. The adhesive carrying surface is movable with respect to the shaft and has an adhesive on at least a portion of its outer surface. The adhesive has sufficient stickiness to adhere to a body material to remove the material when the shaft is removed from the patient'"'"'s body.

Claims

1. A device for removing body material from a patient'"'"'s body comprising a shaft and an adhesive carrying surface extending from the shaft, the adhesive carrying surface being movable with respect to the shaft from an insertion position to an engagement position and having an adhesive on at least a portion of an outer surface, the adhesive having sufficient stickiness to adhere to the body material to remove the material when the shaft is removed from the patient'"'"'s body.

2. A device for removing body material from a patient'"'"'s body as recited in claim 1, wherein the adhesive carrying surface comprises a balloon.

3. A device for removing body material from a patient'"'"'s body as recited in claim 1, wherein the balloon has a distal and proximal surface, and the proximal surface of the balloon contains the adhesive to adhere to a distal portion of the body material to be removed.

4. A device for removing body material from a patient'"'"'s body as recited in claim 1, wherein the adhesive carrying surface comprise first and second arms, the adhesive being on at least a portion of an inner surface of the arms.

5. A device for removing body material from a patient'"'"'s body as recited in claim 4, wherein the arms are formed from a shape memory tube cut into sections to form the arms.

6. A device for removing body material from a patient'"'"'s body as recited in claim 5, further comprising teeth on at least one of the arms.

7. A device for removing body material from a patient'"'"'s body as recited in claim 1, wherein the adhesive carrying surface comprises at least one arm extending from the shaft, the arm movable with respect to the shaft from a first open position more in line with the shaft to a second position at a greater angle to the shaft to engage body material.

8. A device for removing body material from a patient'"'"'s body as recited in claim 7, wherein the shaft has a proximal end closer to the user and a distal end further from the user, and the arm extends toward the proximal end.

9. A device for removing body material from a patient'"'"'s body as recited in claim 1, further comprising a mesh positioned distal of the adhesive carrying surface, the mesh expandable to engage the body material.

10. A device for removing body material from a patient'"'"'s body as recited in claim 9, wherein at least a portion of the region between the mesh and the adhesive carrying surface has an adhesive material thereon.

11. A device for removing body material from a patient'"'"'s body as recited in claim 1, wherein the adhesive carrying material comprises an expandable mesh.

12. A device for removing material from a patient'"'"'s body comprising an elongated member having a cutout formed therein, and an adhesive on at least a portion of an outer surface of the cutout area, the adhesive having sufficient stickiness to adhere to a body material to remove the body material when the shaft is removed from the patient'"'"'s body.

13. A device for removing body material from a patient'"'"'s body as recited in claim 12, wherein the elongated member is a guidewire or hypotube.

14. A device for removing body material from a patient'"'"'s body as recited in claim 12, wherein the elongated member is a catheter.

15. A device for removing body material from a patient'"'"'s body as recited in claim 14, further comprising at least one spacer extending from the elongated member to keep the adhesive out of contact with the vessel wall.