Suction device

• US 8,945,093 B2
• Filed: 03/19/2013
• Issued: 02/03/2015
• Est. Priority Date: 03/20/2012
• Status: Active Grant

• Current Assignee: Minimally Invasive Surgical Technologies, Inc.
• Original Assignee: Minimally Invasive Surgical Technologies, Inc.
• Inventors: Ahluwalia, Prabhat Kumar
• Primary Examiner(s): MARCETICH, ADAM M
• Application Number:
  US13/847,347
• Publication Number:
  US 20130281984A1
• Time in Patent Office: 686 Days
• US Class Current: 604/540
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/7415 by deformation of the fluid passage
• CPC Class Codes: A61M 1/76 Handpieces specially for suction-irrigation A61M1/774, aspiration tips A61M1/84
• 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 1/774 Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 1/86 Connectors between drainage tube and handpiece, e.g. drainage tubes detachable from handpiece
• CPC Class Codes: A61M 3/0233 characterised by liquid supply means, e.g. from pressurised reservoirs
• CPC Class Codes: A61M 3/0279 Cannula; Nozzles; Tips; their connection means
• 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

Abstract

An embodiment includes a suction device handle for use with a vacuum supply conduit to suction a fluid or tissue, the handle comprising: a hand-grippable body defining a chamber; the hand-grippable body comprising a distal end configured to support a suction tip; the suction tip including a distal end of a vacuum supply conduit extending within an outer cannula, the vacuum supply conduit being offset from a distal end of the outer cannula by a predetermined distance; wherein the distal end of the hand grippable body is connected to a proximal end of the outer cannula and the chamber is connected in fluid communication with the suction pressure or vacuum generated at the distal end of the vacuum supply conduit. Additional embodiments are described herein.

Claims

1. A suction device handle to use with a vacuum supply conduit to suction a fluid or tissue, the handle comprising:

a hand-grippable body defining a chamber and comprising a distal end configured to support a suction tip;

the suction tip including a distal end of the vacuum supply conduit extending within an outer cannula, the vacuum supply conduit being offset from a distal end of the outer cannula by a predetermined distance and configured to couple to a vacuum supply; and

a tip connector configured to releasably couple the distal end of the body to the suction tip;

wherein the distal end of the body is configured to couple to a proximal end of the outer cannula and the chamber is configured to couple in fluid communication with suction pressure generated at the distal end of the vacuum supply conduit by the vacuum supply;

wherein the vacuum supply conduit, when coupled to the vacuum supply, forms the suction pressure (a) at a location directly between an outer wall surface of the vacuum supply conduit and an inner wall surface of the outer cannula, (b) within a portion of the chamber located proximal to the location, and (c) that sucks fluid away from the outer cannula and into the vacuum supply conduit;

wherein the vacuum supply conduit is configured to pass through the chamber into the suction tip.

2. A suction device of claim 1, wherein the chamber is further configured to pass a fluid supply conduit.

3. A suction device of claim 2, wherein the chamber is configured to hold the vacuum supply conduit and fluid supply conduit in an overlapping configuration.

4. A suction device of claim 2, wherein a proximal end of the hand grippable body is configured to form an airtight seal around the vacuum supply conduit and fluid supply conduit passing therethrough into the chamber.

5. A suction device of claim 1, further comprising at least one spring-biased valve mechanism configured to normally close the vacuum supply conduit.

6. A suction device of claim 5, wherein the chamber is further configured to pass a fluid supply conduit.

7. A suction device of claim 6, further comprising a second spring-biased valve mechanism configured to normally close the fluid supply conduit.

8. A suction device of claim 6, wherein a proximal end of the hand grippable body is configured to form an airtight seal around the vacuum supply conduit and the fluid supply conduit passing therethrough into the chamber.

9. A suction device of claim 1, wherein a proximal end of the body is configured to form an airtight seal around the vacuum supply conduit passing therethrough into the chamber.

10. A suction device of claim 1, wherein the chamber has a proximal half that is volumetrically larger than a distal half of the chamber.

11. A suction device of claim 1, wherein the vacuum supply conduit, when coupled to the vacuum supply, forms the suction pressure within a proximal half of the chamber located proximal to the location.

12. A suction device of claim 1, wherein the vacuum supply conduit forms the suction pressure at the location when the distal end of the outer cannula is covered by the fluid.

13. The suction device of claim 1, further comprising a vacuum connector configured to releasably couple the vacuum supply conduit to the suction tip.

14. A suction device handle to use with a vacuum supply conduit to suction a fluid or tissue, the handle comprising:

a hand-grippable body defining a chamber and comprising a distal end configured to support a suction tip;

the suction tip including a distal end of the vacuum supply conduit extending within an outer cannula, the vacuum supply conduit being offset from a distal end of the outer cannula by a predetermined distance and configured to couple to a vacuum supply; and

a vacuum connector configured to releasably couple the vacuum supply conduit to the suction tip;

wherein the distal end of the body is configured to couple to a proximal end of the outer cannula and the chamber is configured to couple in fluid communication with suction pressure generated at the distal end of the vacuum supply conduit by the vacuum supply;

wherein the vacuum supply conduit, when coupled to the vacuum supply, forms the suction pressure (a) at a location directly between an outer wall surface of the vacuum supply conduit and an inner wall surface of the outer cannula, (b) within a portion of the chamber located proximal to the location, and (c) that sucks fluid away from the outer cannula and into the vacuum supply conduit;

wherein the vacuum supply conduit is configured to pass through the chamber into the suction tip.

15. A suction device of claim 14, further comprising a tip connector configured to releasably couple the distal end of the body to the suction tip.

16. A suction device of claim 14, wherein the chamber is further configured to pass a fluid supply conduit.

17. A suction device of claim 16, wherein a proximal end of the hand grippable body is configured to form an airtight seal around the vacuum supply conduit and fluid supply conduit passing therethrough into the chamber.

18. A suction device of claim 14, further comprising at least one spring-biased valve mechanism configured to normally close the vacuum supply conduit.

19. A suction device of claim 18, wherein the chamber is further configured to pass a fluid supply conduit.

20. A suction device of claim 19, wherein the suction device further comprises a second spring-biased valve mechanism configured to normally close the fluid supply conduit.

21. A suction device of claim 14, wherein a proximal end of the body is configured to form an airtight seal around the vacuum supply conduit passing therethrough into the chamber.

22. A suction device of claim 14, wherein the chamber has a proximal half that is volumetrically larger than a distal half of the chamber.

23. A suction device of claim 14, wherein the vacuum supply conduit, when coupled to the vacuum supply, forms the suction pressure within a proximal half of the chamber located proximal to the location.

24. A suction device of claim 14, wherein the vacuum supply conduit forms the suction pressure at the location when the distal end of the outer cannula is covered by the fluid.