Reciprocating syringes

• US 6,245,046 B1
• Filed: 05/03/1999
• Issued: 06/12/2001
• Est. Priority Date: 05/03/1999
• Status: Active Grant

• Current Assignee: Science & Technology Corporation
• Original Assignee: The University of New Mexico
• Inventors: Sibbitt, Wilmer L.
• Primary Examiner(s): KENNEDY, SHARON E
• Application Number:
  US09/303,555
• Time in Patent Office: 771 Days
• Field of Search: 604/152, 604/191, 604/80, 604/81, 604/35, 604/181, 604/183, 604/187
• US Class Current: 604/191
• CPC Class Codes: A61M 2005/3152 including gearings to multiply or attenuate the piston displacing force
• CPC Class Codes: A61M 5/19 having more than one chamber , e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly surgical glue applicators A61B17/00491
• CPC Class Codes: A61M 5/284 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: A61M 5/3148 Means for causing or aiding aspiration or plunger retraction
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence

Abstract

The present invention provides a syringe device comprising: a first syringe comprising: a first syringe barrel including a first opening at a distal end thereof through which fluid may be forced or aspirated; and a first syringe plunger sliding within the first syringe barrel for forcing fluid through the first syringe barrel opening, the first syringe plunger including a stopper at a distal end thereof which sealingly and slidably engages the first syringe barrel; a reciprocating member which moves along a track parallel to the axial direction of the first syringe; and a reciprocating device connecting the first syringe plunger to the reciprocating member so that when one member of the group consisting of the first syringe plunger and the reciprocating member moves distally, the other member of the group is forced to move proximally. The present invention also provides a syringe device where one member of the group consisting of the first syringe plunger and the reciprocating member moves proximally, the other member of the group is forced to move distally.

Claims

1. A syringe device comprising:

a first syringe comprising;

a first syringe barrel including a first opening at a distal end thereof through which fluid may be forced or aspirated; and

a first syringe plunger sliding within said first syringe barrel for forcing fluid through said first syringe barrel opening, said first syringe plunger including a stopper at a distal end thereof which sealingly and slidably engages said first syringe barrel;

a reciprocating member which moves along a track parallel to the axial direction of said first syringe; and

a reciprocating device connecting said first syringe plunger to said reciprocating member so that when said first syringe plunger is forced to move distally, said reciprocating member is forced to move proximally and so that when said reciprocating member is forced to move distally, said first syringe plunger is forced to move proximally, wherein said reciprocating device comprises a connector connecting said first syringe plunger to said reciprocating member and a pulley structure over which said connector travels.

2. The syringe device of claim 1, wherein said track comprises an accessory barrel having an opening for the escape of gases from said accessory barrel and said reciprocating member comprises an accessory plunger extending into said accessory barrel and having a stopper at a distal end thereof which slidably engages said accessory barrel.

3. The syringe device of claim 1, further comprising:

a first thumb rest at a proximal end of said syringe plunger for allowing a user to push said first syringe plunger distally, wherein said reciprocating member includes a second thumb rest for allowing the user to push said reciprocating member distally.

4. The syringe device of claim 1, wherein said pulley structure comprises a pulley post extending proximally from said first syringe barrel and a pulley device over which said connector travels.

5. The syringe device of claim 1, wherein said reciprocating member comprises an accessory plunger and said track comprises at least one guide support mounted on and extending laterally from said first syringe barrel and having an opening through which said accessory plunger slides.

6. The syringe device of claim 5, wherein said pulley structure comprises a pulley post extending proximally from said first syringe barrel and a pulley device over which said connector travels.

7. The syringe device of claim 5, wherein said at least one lateral guide support comprises at least two guide supports.

8. The syringe device of claim 1, wherein said reciprocating member comprises a slider having an opening therein and said track comprises a slider post which extends through said opening in said slider and on which said slider slides.

9. The syringe device of claim 8, wherein pulley structure comprises a pulley post mounted on and extending proximally from said first syringe barrel and a pulley device mounted on said pulley post, wherein said slider post comprises said pulley post.

10. The syringe device of claim 1, wherein said first syringe plunger includes a first syringe plunger thumb rest at a proximal end thereof;

wherein said reciprocating member comprises a reciprocating thumb rest;

wherein said pulley structure comprises a pulley post mounted on at least one side of said first syringe barrel and extending proximally from said first syringe barrel and two pulley devices rotatably mounted, respectively, at proximal and distal ends of said pulley post;

wherein said connector comprises a belt connector which travels around both of said pulley devices; and

wherein said first syringe plunger thumb rest and said reciprocating thumb rest are mounted on parallel strands of said belt connector.

11. The syringe device of claim 1, further comprising a hypodermic needle mounted over and communicating with said first syringe barrel first opening.

12. The syringe device of claim 1, comprising a one-way valve mounted over and communicating with said first syringe barrel first opening.

13. The syringe device of claim 1, further comprising a first secondary opening in a wall of said first syringe barrel, a first one-way valve mounted over and communicating with said first syringe barrel first opening and a second one-way valve mounted over and communicating with said first syringe barrel secondary opening.

14. The syringe device of claim 1, further comprising a second syringe mounted on said first syringe, said second syringe comprising:

a second syringe barrel, said second syringe barrel including;

a second opening at a distal end thereof through which fluid may be forced or aspirated; and

said reciprocating member, said reciprocating member comprising a second syringe plunger sliding within said second syringe barrel for forcing fluid through said second syringe barrel opening, said second syringe plunger including a stopper at a distal end thereof which sealingly and slidably engages said first syringe barrel.

15. The syringe device of claim 14, further comprising a first hypodermic needle mounted over and communicating with said first opening in said first syringe barrel and a second hypodermic needle mounted over and communicating with said second opening in said second syringe barrel.

16. The syringe device of claim 14, comprising a first one-way valve mounted over and communicating with said first syringe barrel first opening and a second one-way valve mounted over and communicating with said second syringe barrel second opening.

17. The syringe device of claim 16, wherein said first one-way valve and said second one-way valves have flows oriented in the same direction.

18. The syringe device of claim 16, wherein said first one-way valve and said second one-way valve have flows oriented in opposite directions.

19. The syringe device of claim 14, further comprising a first secondary opening in a wall of said first syringe barrel and a second secondary opening in a wall of said second syringe barrel, a first primary one-way valve mounted over and communicating with said first syringe barrel first opening;

a first secondary one-way valve mounted over and communicating with said first syringe barrel secondary opening;

a second primary one-way valve mounted over and communicating with said first syringe barrel first opening and a second secondary one-way valve mounted over and communicating with said first syringe barrel secondary opening.

20. The syringe device of claim 19, wherein the combination of said first primary and secondary one-way valves has the same flow direction as the combination of said second primary and secondary one-way valves.

21. The syringe device of claim 19, wherein the combination of said first primary and secondary one-way valves has an opposite flow direction as the combination of said second primary and secondary one-way valves.

22. The syringe device of claim 1, further comprising first and second finger flanges for gripping by a user, said first and second finger flanges mounted on and extending laterally from a proximal end of said first syringe barrel.

23. The syringe device of claim 22, wherein at least one member of the group consisting of said first and second laterally extending finger flanges comprises a substantially flat finger flange.

24. The syringe device of claim 22, wherein at least one member of the group consisting of said first and second laterally extending finger flanges comprises a circular finger flange.

25. The syringe device of claim 22, wherein at least one member of the group consisting of said first and second laterally extending finger flanges comprises a half-ring finger flange.

26. The syringe device of claim 22, wherein at least one member of the group consisting of said first and second laterally extending finger flanges comprises a curvilinear finger flange.

27. The syringe device of claim 1, further comprising a finger ring mounted on said first syringe barrel and extending perpendicularly to the axial direction of said first syringe barrel and a handle mounted proximally of said finger ring on said first syringe barrel and extending axially from said first syringe barrel.