Injection systems

• US 7,588,559 B2
• Filed: 03/24/2005
• Issued: 09/15/2009
• Est. Priority Date: 07/01/2004
• Status: Expired due to Fees

• Current Assignee: W&H Dentalwerk Burmoos GmbH (PM Privatstiftung)
• Original Assignee: W&H Dentalwerk Burmoos GmbH (PM Privatstiftung)
• Inventors: Kumar, Ajay, Aravena, Ines M., Abedi, Hamid
• Primary Examiner(s): Sirmons; Kevin C
• Assistant Examiner(s): Mehta; Bhisma
• Application Number:
  US11/089,446
• Publication Number:
  US 20060106363A1
• Time in Patent Office: 1,636 Days
• Field of Search: 604/19, 604/22, 604/48, 604/500, 604/506, 604/181, 604/187, 604/188, 604/200, 604/201, 604205-208, 604/211, 604/272, 606/92, 606/93, 222/386, 222389-391
• US Class Current: 604/188
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 2090/08021 of the patient or his organs
• CPC Class Codes: A61M 2005/3289 with rotation of the needle, e.g. to ease penetration
• CPC Class Codes: A61M 5/3291 Shafts with additional lateral openings

Abstract

An intraosseous injection device includes a tool having a distal portion, a proximal portion, and a solution dispensing opening. The distal portion has one or more cutting surfaces. The tool can be coupled with a protective carrier. The tool can be rotatably coupled to a tool actuation mechanism. A housing has a distal end and a proximal end. The housing releasably receives a solution cartridge containing a solution. A solution dispensing mechanism dispenses solution from the solution cartridge. A gripping member grips a proximal portion of the tool. A rotation device rotates the gripping member and thereby rotates the tool about an axis. The proximal portion of the tool connects directly to the solution cartridge such that solution from the cartridge can be delivered through the solution dispensing opening. The tool is configured to rotate relative to the solution cartridge.

Claims

1. A device for intraosseous delivery of solutions, comprising:

a housing that receives a solution cartridge having a penetrable seal on one end thereof, the solution cartridge holding a solution therein;

a gripping device having an open position to receive a needle and having a closed position to grip the needle, the needle having a hollow bore extending therethrough from a proximal end to a distal end thereof, the gripping device holding the needle with the proximal end of the needle in the solution and with the distal end of the needle exposed for engagement with a material to be drilled;

a rotating mechanism that rotates the gripping device to rotate the needle; and

a dispensing mechanism that applies pressure to the solution within the solution cartridge to force the solution from the solution cartridge through the hollow bore of the needle to eject the solution from the distal end of the needle.

2. The device as defined in claim 1, wherein the gripping device comprises a collet mechanism.

3. The device as defined in claim 1, wherein the gripping device comprises a chucking mechanism that grips the needle in a region closer to the proximal end of the needle than to the distal end of the needle.

4. The device as defined in claim 1, wherein the dispensing mechanism comprises a push rod that applies pressure to the solution within the solution cartridge.

5. The device as defined in claim 1, wherein the dispensing mechanism comprises a spring-loaded lever and a rack, and wherein the rack axially advances to reduce the volume of the cartridge as the spring-loaded lever is manually depressed.

6. The device as defined in claim 1, wherein the dispensing mechanism comprises a gear and a plunger, and wherein the plunger axially advances to reduce the volume of the cartridge.

7. The device as defined in claim 1, wherein the gripping device is configured to receive a standard type needle.

8. The device as defined in claim 7, wherein the standard type needle comprises a hub covering a first portion of the outer surface of the needle, and wherein the gripping device is configured to grip a second portion of the outer surface of the needle not covered by the hub.

9. The device as defined in claim 1, wherein the distal end of the needle comprises one or more bevels.

10. The device as defined in claim 1, wherein the rotating mechanism is configured to be coupled to an electric motor.

11. The device as defined in claim 1, wherein the rotating mechanism is configured to be coupled to an air supply.

12. The device as defined in claim 1, wherein the rotating mechanism is configured for cordless operation.

13. The device as defined in claim 1, further comprising a sleeve configured to extend over at least a portion of the needle when the needle is gripped by the gripping device.

14. A device for intraosseous delivery of solutions, comprising:

a housing that receives a solution cartridge having a penetrable seal on one end thereof, the solution cartridge holding a solution therein;

a gripping device having an openposition to receive a needle and having a closed position to grip the needle, the needle having a hollow bore extending therethrough from a proximal end to a distal end thereof, the gripping device holding the needle with the proximal end of the needle in the solution and with the distal end of the needle exposed for engagement with a material to be drilled;

a rotating mechanism that rotates the gripping device to rotate the needle; and

a dispensing mechanism that applies pressure to the solution within the solution cartridge to force the solution from the solution cartridge through the hollow bore of the needle to eject the solution from the distal end of the needle,

wherein the gripping device comprises a chucking mechanism that grips the needle in a region closer to the proximal end of the needle than to the distal end of the needle, and

wherein the chucking mechanism comprises a radially expandable collet that expands to receive the needle and that contracts to hold the needle.

15. The device as defined in claim 14, wherein the radially expandable collet is responsive to a force to contract about the needle.

16. The device as defined in claim 15, further comprising a biasing member to bias the collet to a compressed position to contract about the needle.

17. The device as defined in claim 14, wherein the gripping device comprises a plurality of lever arms.

18. The device as defined in claim 14, wherein the solution cartridge has a first axis and wherein the needle rotates about a second axis, the second axis being at an angle with respect to the first axis.

19. The device as defined in claim 14, wherein the gripping device is configured to receive a standard type needle.

20. The device as defined in claim 19, wherein the standard type needle comprises a hub covering a first portion of the outer surface of the needle, and wherein the gripping device is configured to grip a second portion of the outer surface of the needle not covered by the hub.

21. The device as defined in claim 14, wherein the rotating mechanism is configured to be coupled to an electric motor.

22. The device as defined in claim 14, wherein the rotating mechanism is configured to be coupled to an air supply.

23. The device as defined in claim 14, wherein the rotating mechanism is configured for cordless operation.

24. The device as defined in claim 14, further comprising a sleeve configured to extend over at least a portion of the needle when the needle is gripped by the gripping device.

25. A device for intraosseous delivery of solutions, comprising:

a housing that receives a solution cartridge having a penetrable seal on one end thereof, the solution cartridge holding a solution therein;

a gripping device having an open position to receive a needle and having a closed position to grip the needle, the needle having a hollow bore extending therethrough from a proximal end to a distal end thereof, the gripping device holding the needle with the proximal end of the needle in the solution and with the distal end of the needle exposed for engagement with a material to be drilled;

a rotating mechanism that rotates the gripping device to rotate the needle; and

a dispensing mechanism that applies pressure to the solution within the solution cartridge to force the solution from the solution cartridge through the hollow bore of the needle to eject the solution from the distal end of the needle,

wherein the gripping device comprises a plurality of lever arms.

26. The device as defined in claim 25, wherein the gripping device is configured to receive a standard type needle.

27. The device as defined in claim 26, wherein the standard type needle comprises a hub covering a first portion of the outer surface of the needle, and wherein the gripping device is configured to grip a second portion of the outer surface of the needle not covered by

28. The device as defined in claim 25, wherein the rotating mechanism is configured for cordless operation.

29. The device as defined in claim 25, further comprising a sleeve configured to extend over at least a portion of the needle when the needle is gripped by the gripping device.

30. A device for intraosseous delivery of solutions, comprising:

a housing that receives a solution cartridge having a penetrable seal on one end thereof, the solution cartridge holding a solution therein;

a gripping device having an open position to receive a needle and having a closed position to grip the needle, the needle having a hollow bore extending therethrough from a proximal end to a distal end thereof, the gripping device holding the needle with the proximal end of the needle in the solution and with the distal end of the needle exposed for engagement with a material to be drilled;

a rotating mechanism that rotates the gripping device to rotate the needle; and

a dispensing mechanism that applies pressure to the solution within the solution cartridge to force the solution from the solution cartridge through the hollow bore of the needle to eject the solution from the distal end of the needle,

wherein the solution cartridge has a first axis and wherein the needle rotates about a second axis, the second axis being at an angle with respect to the first axis.

31. The device as defined in claim 30, wherein the gripping device comprises a collet mechanism.

32. The device as defined in claim 30, wherein the gripping device comprises a chucking mechanism that grips the needle in a region closer to the proximal end of the needle than to the distal end of the needle.

33. The device as defined in claim 32, wherein the chucking mechanism comprises a radially expandable collet that expands to receive the needle and that contracts to hold the needle.

34. The device as defined in claim 33, wherein the radially expandable collet is responsive to a force to contract about the needle.

35. The device as defined in claim 33, further comprising a biasing member to bias the collet to a compressed position to contract about the needle.

36. The device as defined in claim 30, wherein the gripping device comprises a plurality of lever arms.

37. The device as defined in claim 30, wherein the gripping device is configured to receive a standard type needle.

38. The device as defined in claim 37, wherein the standard type needle comprises a hub covering a first portion of the outer surface of the needle, and wherein the gripping device is configured to grip a second portion of the outer surface of the needle not covered by the hub.

39. The device as defined in claim 30, wherein the rotating mechanism is configured for cordless operation.

40. The device as defined in claim 30, further comprising a sleeve configured to extend over at least a portion of the needle when the needle is gripped by the gripping device.

41. A device for intraosseous delivery of solutions, comprising:

a housing that receives a solution cartridge having a penetrable seal on one end thereof, the solution cartridge holding a solution therein;

a gripping device having an open position to receive a rotatable tool and having a closed position to grip the tool, the tool having a hollow bore extending therethrough from a proximal end to a distal end thereof, the gripping device holding the tool with the proximal end of the tool in the solution and with the distal end of the tool exposed for engagement with a material;

a rotating mechanism that rotates the gripping device to rotate the tool; and

a dispensing mechanism that applies pressure to the solution within the solution cartridge to force the solution from the solution cartridge through the hollow bore of the tool to eject the solution from the distal end of the tool.

42. The device as defined in claim 41, wherein the tool comprises one of a needle, a file, a drill bit or a burr.

43. A method for preparing a device for intraosseous delivery of solutions, comprising:

positioning a solution cartridge in a housing, the solution cartridge having a penetrable seal on one end thereof, the solution cartridge holding a solution therein;

opening a gripping device to an open position to receive a needle, the needle having a hollow bore extending therethrough from a proximal end to a distal end thereof;

inserting the proximal end of the needle through the gripping device to position the proximal end of the needle in the solution;

closing the gripping device to a closed position to grip the needle, the gripping device holding the needle with the proximal end in the solution and with the distal end of the needle exposed for engagement with a material to be drilled; and

applying a rotational force to the gripping device to rotate the needle held by the gripping device.

44. The method as defined in claim 43, wherein the gripping device comprises a collet mechanism.

45. The method as defined in claim 43, wherein the gripping device comprises a chucking mechanism that grips the needle in a region closer to the proximal end of the needle than to the distal end of the needle.

46. The method as defined in claim 43, wherein the needle is a standard type needle having a hub covering a first portion of the outer surface of the needle, and the method further comprises gripping a second portion of the outer surface of the needle not covered by the hub.

47. A method for preparing a device for intraosseous delivery of solutions, comprising:

positioning a solution cartridge in a housing, the solution cartridge having a penetrable seal on one end thereof, the solution cartridge holding a solution therein;

opening a gripping device to an open position to receive a needle, the needle having a hollow bore extending therethrough from a proximal end to a distal end thereof, wherein the gripping device comprises a chucking mechanism that grips the needle in a region closer to the proximal end of the needle than to the distal end of the needle;

inserting the proximal end of the needle through the gripping device to position the proximal end of the needle in the solution;

closing the gripping device to a closed position to grip the needle, the gripping device holding the needle with the proximal end in the solution and with the distal end of the needle exposed for engagement with a material to be drilled;

applying a rotational force to the gripping device to rotate the needle held by the gripping device;

radially expanding a collet in the chucking mechanism to receive the needle; and

radially contracting the collet to hold the needle.

48. The method as defined in claim 47, further comprising applying a force to the collet to contract the collet about the needle.

49. The method as defined in claim 48, further comprising biasing the collet to a compressed position to contract the collet about the needle.

50. A method for preparing a device for intraosseous delivery of solutions, comprising:

positioning a solution cartridge in a housing, the solution cartridge having a penetrable seal on one end thereof, the solution cartridge holding a solution therein;

opening a gripping device to an open position to receive a needle, the needle having a hollow bore extending therethrough from a proximal end to a distal end thereof;

inserting the proximal end of the needle through the gripping device to position the proximal end of the needle in the solution;

closing the gripping device to a closed position to grip the needle, the gripping device holding the needle with the proximal end in the solution and with the distal end of the needle exposed for engagement with a material to be drilled; and

applying a rotational force to the gripping device to rotate the needle held by the gripping device;

positioning the solution cartridge in the housing with the solution cartridge oriented along a first axis; and

rotating the needle about a second axis, the second axis being at an angle with respect to the first axis.

51. The device as defined in claim 50, wherein the gripping device comprises a collet mechanism.

52. The method as defined in claim 50, wherein the gripping device comprises a collet mechanism.

53. The method as defined in claim 50, wherein the gripping device comprises a chucking mechanism that grips the needle in a region closer to the proximal end of the needle than to the distal end of the needle.

54. The method as defined in claim 53, further comprising:

radially expanding a collet in the chucking mechanism to receive the needle; and

radially contracting the collet to hold the needle.

55. The method as defined in claim 54, further comprising applying a force to the collet to contract the collet about the needle.

56. The method as defined in claim 55, further comprising biasing the collet to a compressed position to contract the collet about the needle.

57. The method as defined in claim 50, wherein the needle is a standard type needle having a hub covering a first portion of the outer surface of the needle, and the method further comprises gripping a second portion of the outer surface of the needle not covered by the hub.