Method and apparatus for applying a medically useful multiple component material

• US 6,585,696 B2
• Filed: 12/22/2000
• Issued: 07/01/2003
• Est. Priority Date: 12/22/2000
• Status: Expired due to Fees

• Current Assignee: Baxter International Inc.
• Original Assignee: Baxter International Inc.
• Inventors: Laird, James C., Delcastillo, Jorge, Welter, Jacquelynn, Yardimci, Atif M., Petersen, Robert L.
• Primary Examiner(s): SOLIS, ERICK R
• Application Number:
  US09/746,210
• Publication Number:
  US 20020082563A1
• Time in Patent Office: 921 Days
• Field of Search: 604/82, 604/191, 604/187, 604/210, 222/137, 222/391
• US Class Current: 604/191
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 2017/00495 for two-component glue
• CPC Class Codes: A61M 5/3156 using volume steps only adjustable in discrete intervals, i.e. individually distinct intervals
• CPC Class Codes: A61M 5/31581 performed by rotationally moving or pivoting actuator operated by user, e.g. an injection lever or handle
• CPC Class Codes: A61M 5/31595 Pre-defined multi-dose administration by repeated overcoming of means blocking the free advancing movement of piston rod, e.g. by tearing or de-blocking

Abstract

An applicator gun for spraying a medically useful multiple component fluid to an area of interest. The handheld applicator gun functionally receives a commercially available or standardized multi-syringe applicator, and dispenses fluid from the multi-syringe applicator in a controllable manner. The handheld applicator gun further includes a return stop and a dispensing stop to limit the force exerted on the multi-syringe applicator.

Claims

1. A multi-component applicator for mixing and applying at least a first and a second component, comprising:

a multi-syringe applicator comprising at least a first syringe container storing a first component therein, and having a first syringe piston connected to a first piston rod disposing a first pusher, and at least a second syringe container storing a second component therein, and having a second syringe piston connected to a second piston rod disposing a second pusher;

a handheld applicator gun comprising an elongated body portion defining an applicator housing, a stationary handle portion, and a moveable trigger device;

said moveable trigger device connected to said applicator housing and adjacent thereto;

said moveable trigger device comprising a movement actuator connected to an advanceable engagement member, wherein actuation of said moveable trigger device advances said engagement member; and

a return stop and a dispensing stop connected to said applicator housing and engageable with said moveable trigger device, said return stop and said dispensing stop configured to limit the mechanical advantage exertable by said handheld applicator on said multi-syringe applicator.

2. The device of claim 1, wherein said movement actuator further comprises a biasing member to lockably engage said engagement member with said movement actuator, thereby restricting movement of the engagement member.

3. The device of claim 2, wherein said biasing member may be disengaged by the operator, thereby permitting movement of the engagement member.

4. The device of claim 2, wherein said biasing member comprises a spring.

5. The device of claim 1, where said applicator housing further comprises an interface cavity capable of receiving said multi-syringe applicator.

6. The device of claim 5, wherein said interface cavity is capable of receiving a plurality of multi-syringe applicators.

7. The device of claim 1, wherein said engagement member further comprises a pushing interface.

8. The device of claim 7, wherein said pushing interface further comprises a force dampener.

9. The device of claim 8, wherein said force dampener is made of an elastomer.

10. The device of claim 8, wherein said force dampener is made of silicon.

11. The device of claim 1, wherein said return stop is positioned to contact said moveable trigger device, thereby limiting the stroke length of said moveable trigger device.

12. The device of claim 11, wherein said moveable trigger device further comprises a trigger biasing member, said trigger biasing member forcing said moveable trigger device to contact said return stop absent the application of pressure to said moveable trigger device.

13. The device of claim 12, wherein said trigger biasing member is a spring.

14. The device of claim 1, wherein said dispensing stop is positioned to contact said moveable trigger device, thereby limiting the quantity of said first component and second component dispensed at one time.

15. The device of claim 1, wherein said stationary handle forms a pistol-type grip.

16. The device of claim 1, wherein said applicator housing is capable of receiving a spray producing device, thereby enabling the sprayed application of said first and second components.

17. The device of claim 1 wherein said applicator housing further comprises an applicator cavity, said applicator cavity having said return stop located therein.

18. The device of claim 1 wherein said applicator housing further comprises an applicator cavity, said applicator cavity having said dispensing stop located therein.

19. The device of claim 1 wherein said applicator housing further comprises an applicator cavity, said applicator cavity having said return stop and said dispensing stop located therein.

20. A multi-component applicator for mixing and applying at least a first and a second component, comprising:

a multi-syringe applicator comprising at least a first syringe container storing a first component therein, and having a first syringe piston connected to a first piston rod disposing a first pusher, and at least a second syringe container storing a second component therein, and having a second syringe piston connected to a second piston rod disposing a second pusher;

a handheld applicator gun comprising an elongated body portion defining an applicator housing, a stationary handle portion, and a moveable trigger device;

said moveable trigger device connected to said applicator housing and adjacent thereto;

a movement actuator in communication with said movable trigger device and connected to an advanceable engagement member, said advanceable engagement member comprising a pushing interface having a force dampener attached thereto,

wherein actuation of said moveable trigger device advances said engagement member; and

a return stop and a dispensing stop connected to said applicator housing and engageable with said moveable trigger device, thereby limiting the advancement stroke lengths of the first and said second pistons disposed in said first and second containers.

21. A method of optimizing the force applied by a hand held applicator, comprising:

providing a handheld applicator capable of exerting increased force on a multi-component applicator coupled thereto, said handheld applicator providing a mechanical advantage in applying said force; and

regulating the mechanical advantage of said handheld applicator to control the application of said force applied by said handheld applicator to said multi-component applicator.

22. The method of claim 21, wherein said regulation of said applied force is accomplished by a dispensing stop, thereby limiting the mechanical advantage obtained by said handheld applicator.

23. The method of claim 21, wherein said regulation of said applied force is accomplished by a return stop, thereby limiting the mechanical advantage obtained by said handheld applicator.

24. The method of claim 21, wherein said regulation of said applied force is accomplished by a dispensing stop and a return stop, thereby limiting the mechanical advantage obtained by said handheld applicator.

25. The method of claim 21, wherein said regulation of said applied force is accomplished by an audible alert.

26. The method of claim 21, wherein said regulation of said applied force is accomplished by a visual alert.

27. The method of claim 21, wherein regulation of said applied force is accomplished by a tactile alert.

28. The method of claim 21, wherein said regulation of said applied force is accomplished by a piston advancement regulator.

29. The method of claim 21, wherein said regulation of said applied force is accomplished by a force dampener.

30. A handheld multi-component applicator gun for mixing and applying at least a first and a second component, comprising:

an elongated body portion capable of receiving a multi-syringe applicator, said body portion comprising a pushing interface engageable with the multi-syringe applicator;

a drive assembly comprising an engagement member attached to said pushing interface, said engagement member having a first engagement member surface comprising an exterior tray and a second engagement member surface comprising a drive track having one or more teeth disposed thereon;

a stationary handle portion; and

a movable trigger device connected to said applicator housing and adjacent thereto, said movable trigger device comprising a movement actuator connected to said drive assembly, said movement actuator having an actuator surface comprising movement teeth engageable with said drive teeth.

31. The handheld multi-component applicator gun of claim 30 wherein said movement actuator has a proximal portion and said elongated body portion has a proximal portion, said proximal portion of said movement actuator extending beyond said proximal portion of said elongated body portion.

32. The handheld multi-component applicator gun of claim 30 wherein said elongated body portion defines an applicator cavity which houses said drive assembly, said elongated body portion further comprising advancement tracks within which said drive assembly advances.

33. A handheld multi-component applicator gun for mixing and applying at least a first and a second component, comprising:

a multi-syringe applicator comprising at least a first syringe container storing a first component and having a first syringe piston connected to a first piston rod and having a first piston pusher attached thereto, and at least a second syringe container storing a second component therein and having a second syringe piston connected to a second piston rod and having a second piston pusher attached thereto;

an elongated body portion capable of receiving said multi-syringe applicator, said elongated body portion comprising a pushing interface engageable with the multi-syringe applicator;

a drive assembly comprising an engagement member attached to said pushing member, said engagement member having a first engagement member surface comprising an exterior tray and a second engagement member surface comprising a drive track having one or more drive teeth disposed thereon;

a stationary handle portion; and

a movable trigger device connected to said applicator housing and adjacent thereto, said movable trigger device comprising a movement actuator connected to said drive assembly, said movement actuator having an actuator surface comprising movement teeth engageable with said drive teeth.

34. A device for regulating the mechanical advantage obtainable by a multi-syringe applicator having a movable trigger device in communication with a movement actuator, comprising:

a dispensing stop located within said applicator and configured to engage said movable trigger thereby restricting a range of dispensing motion obtainable by said moveable trigger device; and

a return stop located within said applicator and configured to engage said movable trigger thereby restricting a range of actuation motion obtainable by said moveable trigger device.

35. A force transmission system used in multi-component applicators, comprising:

an applicator cavity;

a drive assembly having a first surface comprising an exterior tray and a pushing interface engageable with at least one syringe applicator and a second surface located within said applicator cavity and comprising a drive track having at least one drive tooth thereon; and

an actuation assembly located within said applicator cavity and having an actuation device disposing a movement actuator thereon, said movement actuator having a distal portion having movement teeth engageable with said at least one drive tooth, said actuation assembly having a proximal portion disposing a disengagement member.