METHODS AND DEVICES FOR REMOVING OBSTRUCTING MATERIAL FROM THE HUMAN BODY

• US 20170027604A1
• Filed: 08/01/2016
• Published: 02/02/2017
• Est. Priority Date: 04/25/2013
• Status: Active Grant

• Current Assignee: CardioProlific Inc. (Koninklijke Philips N.V.)
• Original Assignee: CardioProlific Inc. (Koninklijke Philips N.V.)
• Inventors: Wallace, Michael P.
• Granted Patent: US 10,959,750 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 17/320758 with a rotating cutting instrument, e.g. motor driven A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/00778 Operations on blood vessels A61B2017/22097, A61B2017/320741 take precedence
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/22038 with a guide wire
• CPC Class Codes: A61B 2017/22079 with suction of debris
• CPC Class Codes: A61B 2017/320733 with a flexible cutting or scraping element, e.g. with a whip-like distal filament member
• CPC Class Codes: A61B 2017/320766 eccentric
• CPC Class Codes: A61B 2017/320775 Morcellators, impeller or propeller like means
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61F 7/0085 Devices for generating hot or cold treatment fluids
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 2202/0014 removed from the body
• CPC Class Codes: A61M 2202/0413 Blood
• CPC Class Codes: A61M 2202/06 Solids
• CPC Class Codes: A61M 25/0108 using radio-opaque or ultrasound markers
• CPC Class Codes: A61M 3/0202 with electronic control means or interfaces
• CPC Class Codes: A61M 3/0283 with at least two inner passageways, a first one for irrigating and a second for evacuating suction-irrigation systems A61M1/77; aspiration tips with fluid supply means A61M1/85; for negative pressure wound therapy A61M1/92
• CPC Class Codes: Y10T 74/18024 : Rotary to reciprocating and rotary

Abstract

A device for removing obstructive material from a patient may include an elongate rotational member having a distal end and a proximal end, an internal irrigation catheter at least partially surrounding the rotational member, and an aspiration catheter at least partially surrounding the rotational member and the irrigation catheter. The distal portion of the rotational member is configured to change compliance of the obstructive material and facilitate obstructive material aspiration outside the patient.

Claims

1. A device for removing obstructive material from a patient, the device comprising:

an elongate rotational member having a distal end and a proximal end;

an internal irrigation catheter at least partially surrounding the rotational member; and

an aspiration catheter at least partially surrounding the rotational member and the irrigation catheter,

wherein the distal portion of the rotational member is configured to change compliance of the obstructive material and facilitate obstructive material aspiration outside the patient.

2. The device of claim 1, wherein the rotational member is configured to move with a combination of rotational motion, reciprocal and angular motion along its longitudinal axis.

3. The device of claim 1, wherein the rotational member has a shape selected from the group consisting of various diameters along its length.

4. The device of claim 1, wherein the rotational member consists of a single solid rod.

5. The method of claim 4, wherein the rotational member has a shape selected from the group consisting of circular, oval, square and rectangular.

6. The device of claim 1, wherein the rotational member comprises a material selected from the group consisting of metals, polymers, metal alloys and combinations thereof.

7. The device of claim 1, further comprising a handle disposed on the aspiration catheter including an aperture in fluid communication with the lumen and configured to be covered with a finger of a user to regulate application of the vacuum.

8. The device of claim 1, further comprising a radiopaque marker positioned on at least one of a distal end of the aspiration catheter or the distal end of the rotational member.

9. The device of claim 1, further comprising a guidewire lumen.

10. The device of claim 1, wherein the distal end of the rotational member has a shape selected from the group consisting of a ball shape, a flat circular end, a bent distal end, a coiled distal end, a flat deformation, a basket, and a sinusoidal shape.

11. The device of claim 1, wherein a distal portion of the rotational member includes at least one bend.

12. The device of claim 1, wherein the distal end of the rotational member is housed in a location selected from the group consisting of inside the device, outside of the device, and moveable between inside and outside the device.

13. A device for removing obstructive material from a human body, the device comprising:

a rotational member having a proximal portion and a distal portion that includes at two or more bends, wherein the rotational member is configured to angularly in a distal direction;

an aspiration catheter disposed over the rotational member; and

means to deliver irrigation inside the aspiration catheter.

14. The device of claim 13, wherein the distal portion of the rotational member further includes at least one bend.

15. The device of claim 13, wherein the proximal portion of the rotational member is configured to rotate axially.

16. A device for removing obstructing matter from a human body, the device comprising:

a rotational member having a proximal portion and a distal portion that includes at least a primary bend at or near a distal end of the rotational member, wherein the rotational member is configured to rotate angularly in a distal direction; and

an aspiration catheter disposed over the rotational member.

17. The device of claim 16, wherein the primary bend comprises an inwardly directed bend.

18. The device of claim 16, wherein the primary bend comprises an outwardly directed bend.

19. The device of claim 16, further comprising at least one secondary bend on the distal portion of the rotational member.

20. A device for removing obstructing matter from a human body, the device comprising:

a rotational member connected to a converter that changes axial rotary motion into angular and reciprocating motion; and

an aspiration catheter,

wherein the rotational member changes compliance of the obstructive material to facilitate removal of the obstructive material outside the body.

21. A device for removing obstructing matter from a human body, the device comprising:

a rotational member;

an aspiration catheter; and

irrigation catheter,

wherein a distal end of the device has a smaller cross sectional dimension than an adjacent proximal portion part of the device.

22. The device of claim 21, wherein a configuration of the device toward its distal end is selected from the group consisting of at least one step cross sectional area reduction and a continuous taper.

23. The device of claim 22, further including a bend on the distal end of the device.