Suction device

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, wherein the vacuum supply conduit includes a merging of an irrigation supply conduit and the vacuum supply conduit; and

a connecting portion configured to 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 including within an annular space 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 annular space forms a passageway from the chamber to the distal end of the outer cannula, and the outer wall surface of the vacuum supply conduit and the inner wall surface of the outer cannula are offset from each other due to the annular space;

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 the 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 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.

9. A suction device of claim 1 , 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.

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, wherein the vacuum supply conduit includes a merging of an irrigation supply conduit and the vacuum supply conduit; and

a connecting portion configured to 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 including within an annular space 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 annular space forms a passageway from the chamber to the distal end of the outer cannula, and the outer wall surface of the vacuum supply conduit and the inner wall surface of the outer cannula are offset from each other due to the annular space;

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 14 , further comprising at least one spring-biased valve mechanism configured to normally close the vacuum supply conduit.

18. A suction device of claim 17 , wherein the chamber is further configured to pass a fluid supply conduit.

19. A suction device of claim 18 , wherein the suction device further comprises a second spring-biased valve mechanism configured to normally close the fluid supply conduit.

20. 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.