KIDNEY STONE SUCTION DEVICE

• US 20160045208A1
• Filed: 08/03/2015
• Published: 02/18/2016
• Est. Priority Date: 08/14/2014
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: CIULLA, Ronald
• Granted Patent: US 10,085,759 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 17/221 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 2017/00296 mounted on an endoscope
• CPC Class Codes: A61B 2017/22079 with suction of debris
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32

Abstract

A method of using a suction device to remove an object from a subject'"'"'s body includes extending a suction device into the body through a lumen of a medical device and expanding the suction head from a contracted configuration to an expanded configuration within the body. The suction head may be provided at a distal end of an elongate conduit. The method may also include applying suction to move the object into the expanded suction head, and removing the suction device with the object from the body.

Claims

1. An endoscopic suction device, comprising:

an elongate conduit extending from a proximal end to a distal end along a longitudinal axis, the proximal end configured to be coupled to a vacuum source and the distal end configured to extend into a subject'"'"'s body; and

an expandable suction head at the distal end of the elongate conduit, the suction head being configured to expand from a contracted configuration to an expanded configuration within the body.

2. The device of claim 1, wherein the distal end of the elongate conduit is sized to extend into the body through a lumen of a medical device, and wherein the suction head is configured to transform from a contracted configuration within the lumen to an expanded configuration outside the lumen.

3. The device of claim 2, wherein the lumen is a lumen of an ureteroscope.

4. The device of claim 1, wherein the suction head is self-expandable.

5. The device of claim 1, wherein the suction head includes a shape-memory alloy.

6. The device of claim 1, further including an activation device configured to apply energy to the suction head to transform the suction head from the contracted configuration to the expanded configuration.

7. The device of claim 1, wherein suction head includes a filter.

8. The device of claim 1, wherein, in the expanded configuration, a cross-sectional area of the suction head transverse to the longitudinal axis decreases from a distal-most end of the suction head to a proximal end of the suction head.

9. The device of claim 1, wherein a cross-sectional area of the suction head transverse to the longitudinal axis is greater in the expanded configuration than in the contracted configuration.

10. The device of claim 1, wherein the elongate conduit and the suction head are formed as a single part.

11. A method of using a suction device to remove an object from a subject'"'"'s body, the suction device including an expandable suction head at a distal end of an elongate conduit, comprising:

extending the suction device into the body through a lumen of a medical device;

expanding the suction head from a contracted configuration to an expanded configuration within the body;

applying suction to move the object into the expanded suction head; and

removing the suction device with the object from the body.

12. The method of claim 11, wherein expanding the suction head includes transforming the suction head from a contracted configuration within the lumen to an expanded configuration outside the lumen.

13. The method of claim 11, wherein removing the suction device includes removing the suction device through the lumen.

14. The method of claim 11, wherein removing the suction device includes removing the lumen along with the suction device from the body.

15. The method of claim 11, wherein the suction head is self-expandable.

16. A method of removing a kidney stone from a subject'"'"'s urinary tract, comprising:

inserting a medical device with a lumen into the urinary tract;

extending a suction device into the urinary tract through the lumen, the suction device including a self-expandable suction head at a distal end of an elongate conduit;

expanding the suction head from a contracted configuration within the lumen to an expanded configuration outside the lumen;

applying suction to move the stone into the expanded suction head; and

removing the suction device with the stone from the urinary tract.

17. The method of claim 16, wherein inserting a medical device includes inserting a ureteroscope into the urinary tract.

18. The method of claim 16, wherein, in the expanded configuration, a cross-sectional area of the suction head transverse to a longitudinal axis of the suction head decreases from the distal-most end of the suction head to a proximal end of the suction head.

19. The method of claim 16, wherein removing the suction device includes removing the medical device along with the suction device from the urinary tract.

20. The method of claim 16, wherein a cross-sectional area of the suction head transverse to a longitudinal axis of the suction head is greater in the expanded configuration than in the contracted configuration.