Occlusion Remover and Method

• US 20100114113A1
• Filed: 12/24/2009
• Published: 05/06/2010
• Est. Priority Date: 11/12/1997
• Status: Abandoned Application

• Current Assignee: Genesis Technologies LLC
• Original Assignee: Genesis Technologies LLC
• Inventors: Dubrul, William R., Fulton, Richard Eustis III
• Application Number:
  US12/647,214
• Publication Number:
  US 20100114113A1
• Time in Patent Office: Days
• US Class Current: 606/127
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 10/0266 means for severing sample
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/22004 using mechanical vibrations, e.g. ultrasonic shock waves A61B17/225 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 17/32056 Surgical snare instruments for removing or smashing calculi A61B2017/2212; tonsillotomes A61B17/26
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/00955 thermoplastic
• CPC Class Codes: A61B 2017/1107 for blood vessels
• CPC Class Codes: A61B 2017/1135 End-to-side connections, e.g. T- or Y-connections Y-shaped blood vessel prostheses A61F2002/065
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/22034 for gripping the obstruction or the tissue part from inside
• CPC Class Codes: A61B 2017/22067 Blocking; Occlusion A61B2017/22054 takes precedence
• CPC Class Codes: A61B 2017/22079 : with suction of debris
• CPC Class Codes: A61B 2017/2212 : having a closed distal end, e.g. a loop
• CPC Class Codes: A61B 2017/2215 : having an open distal end
• CPC Class Codes: A61B 2018/1407 : Loop
• CPC Class Codes: A61B 2090/3904 : specially adapted for marking specified tissue
• CPC Class Codes: A61B 2090/3908 : Soft tissue, e.g. breast tissue
• CPC Class Codes: A61B 2090/3962 : palpable
• CPC Class Codes: A61B 6/502 : for diagnosis of breast, i.e. mammography
• CPC Class Codes: A61B 90/39 : Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61B 90/40 : Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment
• CPC Class Codes: A61M 25/0119 : Eversible catheters
• CPC Class Codes: A61M 25/104 : used for angioplasty

Abstract

An occlusion may be removed from a graft or other body passageway using occlusion removing apparatus, comprising a catheter having a lumen through which an elongated occlusion engaging element can pass and a blocking mechanism at the open distal end thereof. The catheter is inserted into the body passageway with the blocking mechanism radially compressed during insertion. The blocking mechanism is radially expanded to near to the wall of the body passageway after insertion. After radially expanding the blocking mechanism, the occlusion engaging element is advanced into the occlusion. The expanded state of the blocking mechanism is used for blocking proximal passage of occlusion material around the outside of the catheter. Occlusion material may be moved proximally through the open end and into the lumen. The distal end of the occlusion engaging element may have an engagement mechanism, such as a balloon.

Claims

1. In the method of removing an occlusion from a graft or other body passageway, the improvement comprising the steps of:

inserting a catheter into a graft or other body passageway, the catheter having a lumen, an open distal end and a blocking mechanism at the distal end;

providing the blocking mechanism in a radially compressed state during the step of inserting;

radially expanding the blocking mechanism into a radially expanded state extending near to the wall of the graft or other body passageway after the step of inserting;

after the step of radially expanding the blocking mechanism, advancing a wire into the occlusion;

using the expanded state of the blocking mechanism for blocking proximal passage of occlusion material around the outside of the catheter; and

proximally moving occlusion material through the open end and into the lumen.

2. A method of blocking occlusion material in a body passageway comprising:

inserting a catheter into a body passageway, the catheter having a lumen, an open distal end and a blocking mechanism adjacent to the distal end such that the distal end of the catheter is positioned proximate to the occlusion material;

providing the blocking mechanism in a radially compressed state during the step of inserting the catheter;

after the step of inserting the catheter, radially expanding the blocking mechanism into a radially expanded state extending near to the wall of the body passageway for blocking proximal passage of occlusion material around the outside of the catheter; and

after the step of radially expanding the blocking mechanism, advancing a wire into the occlusion.

3. The method of claim 2, wherein the wire has a distal end and an engagement mechanism supported on the wire distal end.

4. The method of claim 3, wherein the engagement mechanism is a balloon.

5. A method of removing an occlusion from a body passageway comprising:

inserting a catheter into a body passageway, the catheter having a lumen, an open distal end and a blocking mechanism at the distal end such that the distal end of the catheter is positioned proximate to the occlusion material;

providing the blocking mechanism in a radially compressed state during the step of inserting the catheter;

after the step of inserting the catheter, radially expanding the blocking mechanism into a radially expanded state extending near to the wall of the body passageway for blocking proximal passage of occlusion material around the outside of the catheter;

after the step of radially expanding the blocking mechanism, advancing a wire into the occlusion; and

proximally moving occlusion material through the open end and into the lumen.

6. The method of claim 5, wherein the wire has a distal end and an engagement mechanism supported on the wire distal end.

7. The method of claim 6, wherein the engagement mechanism is a balloon.

8. An apparatus for removing an occlusion, comprising:

a catheter for insertion into a body passageway proximate an occlusion, the catheter having a distal open end and a lumen;

a blocking mechanism disposed on the catheter distal end, the blocking mechanism having a radially compressed state for insertion into the body passageway and a radially expanded state extending near to the wall of the passageway to block passage of material around the outside of the catheter distal end; and

a wire, having a distal end, insertable through the catheter lumen, such that the wire distal end does not extend into the occlusion until after the blocking mechanism is in the radially expanded state.

9. The apparatus of claim 8, wherein the blocking mechanism is a balloon.

10. The apparatus of claim 8, further comprising an occlusion engaging element supported on the wire distal end.

11. The apparatus of claim 8, wherein the engaging element is a balloon.

12. An apparatus for removing an occlusion, comprising:

a catheter for insertion into a body passageway proximate an occlusion, the catheter having a distal open end and a lumen;

a blocking mechanism disposed on the catheter distal end, the blocking mechanism having a radially compressed state for insertion into the body passageway and a radially expanded state extending near to the wall of the passageway to block passage of material around the outside of the catheter distal end; and

a tubular member, having a distal end, insertable through the catheter lumen, such that the tubular member distal end does not extend into the occlusion until after the blocking mechanism is in the radially expanded state.

13. The apparatus of claim 12, wherein the blocking mechanism is a balloon.

14. The apparatus of claim 12, further comprising an occlusion engaging element supported on the tubular member distal end.

15. The apparatus of claim 14, wherein the engaging element is a balloon.