NEEDLE BIOPSY DEVICE

• US 20100081965A1
• Filed: 10/01/2008
• Published: 04/01/2010
• Est. Priority Date: 10/01/2008
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Murphy, Brian, Mugan, John, McWeeney, John
• Granted Patent: US 9,186,128 B2
• Time in Patent Office: Days
• US Class Current: 600/567
• CPC Class Codes: A61B 10/0233 Pointed or sharp biopsy instruments
• CPC Class Codes: A61B 10/0283 with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe A61B10/025, A61B10/0266 take precedence
• CPC Class Codes: A61B 10/04 Endoscopic instruments
• CPC Class Codes: A61B 2010/045 Needles pointed biopsy devices with vacuum aspiration A61B10/0283
• CPC Class Codes: A61B 2017/00424 ergonomic, e.g. fitting in fist
• CPC Class Codes: A61B 2017/3413 guided by ultrasound
• CPC Class Codes: A61B 2090/0801 Prevention of accidental cutting or pricking
• CPC Class Codes: A61B 2090/3925 ultrasonic
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

Abstract

A device for needle biopsy is provided. The device includes a handle member having proximal and distal portions. A proximal handle member is disposed to the proximal portion of the handle member and a distal handle member is disposed to the distal portion of the handle member. A sheath lumen is disposed within the handle member and extends from the distal portion of the handle member. A needle housing member is partially disposed to the proximal portion of the handle member and a needle is disposed within the sheath lumen. A plurality of protrusions are disposed upon the needle.

Claims

1. A device for needle biopsy, comprising:

a handle member having proximal and distal portions;

a proximal handle member disposed to the proximal portion of the handle member;

a distal handle member disposed to the distal portion of the handle member;

a sheath lumen disposed within the handle member and extending from the distal portion of the handle member;

a needle housing member partially disposed to the proximal portion of the handle member; and

a needle disposed within the sheath lumen, the needle including a plurality of protrusions disposed thereon.

2. The device of claim 1, wherein the plurality of protrusions are distributed along the length of the needle.

3. The device of claim 1, wherein the plurality of protrusions are located at a consistent increment over the length of the needle.

4. The device of claim 1, wherein the protrusions are distributed on at least a portion of the length of the needle.

5. The device of claim 1, wherein at least a portion of the needle includes a tapered region for increasing the overall dimension of the needle, wherein the tapered region and the sheath lumen provide an interference therebetween for creating stability for the needle as it passes through the sheath lumen and is removed from the sheath lumen.

6. The device of claim 5, wherein the interference is a drag force creating frictional resistance between an outer diameter of the needle and an inner diameter of the sheath lumen.

7. The device of claim 1, wherein at least a portion of the needle includes materials or design features to enhance echogenicity and ultrasonic visibility.

8. The device of claim 1, wherein the needle further includes a stylet disposed therein.

9. A device for needle biopsy, comprising:

a handle member having proximal and distal portions;

a proximal handle member disposed to the proximal portion of the handle member;

a distal handle member disposed to the distal portion of the handle member;

a sheath lumen disposed within the handle member and extending from the distal portion of the handle member;

a needle housing member partially disposed to the proximal portion of the handle member; and

a needle disposed within the sheath lumen, at least a portion of the needle is surrounded by a polymer.

10. The device of claim 9, wherein the polymer is comprised of lubricous materials.

11. The device of claim 9, wherein the polymer increases the overall dimension of the needle to create stability for the needle as it passes through the sheath lumen and is removed from the sheath lumen.

12. The device of claim 9, wherein at least a portion of the needle includes materials or design features to enhance echogenicity and ultrasonic visibility.

13. The device of claim 9, wherein the needle further includes a stylet disposed therein.

14. A device for needle biopsy, comprising:

a handle member having proximal, distal, and stop portions;

a proximal handle member disposed to the proximal portion of the handle member that is configured for slideable engagement to the proximal portion of the handle member and includes a friction member that engages at least one indentation of a first series of indentations along the proximal portion of the handle member to limit slideable movement;

a distal handle member disposed to the distal portion of the handle member that is configured for slideable engagement to the distal portion of the handle member and includes a friction members that engages at least one indentation of a second series of indentations along the distal portion of the handle member to limit slideable movement;

a sheath lumen disposed within the handle member and extending from the distal portion of the handle member; and

a needle housing member partially disposed to the proximal portion of the handle member, including a needle disposed within the sheath lumen.

15. The device of claim 14, wherein the at least one indentation of the first series of indentations represents the length by which the needle extends beyond a distal portion of the sheath member.

16. The device of claim 14, wherein the at least one indentation of the second series of indentations represents the length by which the sheath member extends beyond the distal portion of the distal handle member.

17. The device of claim 14, wherein the stop portion of the handle member is disposed between the proximal and distal handle members to prevent axial movement of the proximal handle member into the distal handle member, and further to prevent axial movement of the distal handle member into the proximal handle member.

18. The device of claim 14, wherein the friction member includes a male indentation having a mating end configured to engage to a female indentation.

19. The device of claim 14, wherein the friction member includes a female indentation having a mating end configured to engage to a male indentation.

20. The device of claim 14, wherein at least a portion of the needle includes materials or design features to enhance echogenicity and ultrasonic visibility.

21. The device of claim 14, wherein the needle further includes a stylet disposed therein.

22. A device for needle biopsy, comprising:

a handle member having proximal and distal portions;

a proximal handle member disposed to the proximal portion of the handle member;

a distal handle member disposed to the distal portion of the handle member, including a connector having a release member that connects axially to a medical device and engages and disengages to a channel port of the medical device;

a sheath lumen disposed within the handle member and extending from the distal portion of the handle member; and

a needle housing member partially disposed to the proximal portion of the handle member, including a needle disposed within the sheath lumen.

23. The device of claim 22, wherein the channel port is a luer port of the medical device.

24. The device of claim 22, wherein the connector includes at least two adaptations to connect to the medical device.

25. The device of claim 22, wherein the at least two adaptations connect relative to the longitudinal axis of the medical device.

26. The device of claim 22, wherein the connector is disposed to the distal portion of the distal handle member.

27. The device of claim 22, wherein the release member is depressible.

28. The device of claim 22, wherein at least a portion of the needle includes materials or design features to enhance echogenicity and ultrasonic visibility.

29. The device of claim 22, wherein the needle further includes a stylet disposed therein.

30. A device for needle biopsy, comprising:

a handle member having proximal and distal portions;

a proximal handle member disposed to the proximal portion of the handle member, including at least one adaptation member;

a distal handle member disposed to the distal portion of the handle member;

a sheath lumen disposed within the handle member and extending from the distal portion of the handle member; and

a needle housing member partially disposed to the proximal portion of the handle member that is moveable in a substantially transverse direction relative to the longitudinal axis of the handle member, including a needle disposed within the sheath lumen and a strain relief member.

31. The device of claim 30, wherein the needle housing member includes at least one indentation for engaging to the at least one adaptation member.

32. The device of claim 30, wherein the needle housing member detaches from the proximal handle member by moving the needle housing member in the substantially transverse direction, thereby causing the at least one indentation to disengage from the at least one adaptation member.

33. The device of claim 30, wherein the proximal handle member includes a release member that engages and disengages the needle housing member.

34. The device of claim 30, wherein the release member is depressible.

35. The device of claim 30, wherein the strain relief member provides a rigid transition between the at least one adaptation member and the needle to reduce deformation of the needle during removal from the proximal handle member.

36. The device of claim 30, wherein at least a portion of the needle includes materials or design features to enhance echogenicity and ultrasonic visibility.

37. The device of claim 30, wherein the needle further includes a stylet disposed therein.

38. A device for needle biopsy, comprising:

a handle member having proximal and distal portions;

a proximal handle member disposed to the proximal portion of the handle member;

a distal handle member disposed to the distal portion of the handle member;

a sheath lumen disposed within the handle member and extending from the distal portion of the handle member;

a needle housing member partially disposed to the proximal portion of the handle member that is moveable in a substantially transverse direction relative to the longitudinal axis of the handle member; and

a needle disposed within the sheath lumen, the needle including a plurality of protrusions disposed thereon.

39. The device of claim 38, wherein the plurality of protrusions are distributed along the length of the needle.

40. The device of claim 38, wherein the plurality of protrusions are located at a consistent increment over the length of the needle.

41. The device of claim 38, wherein the protrusions are distributed on at least a portion of the length of the needle.

42. The device of claim 38, wherein at least a portion of the needle includes a tapered region for increasing the overall dimension of the needle, wherein the tapered region and the sheath lumen provide an interference therebetween for creating stability for the needle as it passes through the sheath lumen.

43. The device of claim 38, wherein the interference is a drag force creating frictional resistance between an outer diameter of the needle and an inner diameter of the sheath lumen.

44. The device of claim 38, wherein the needle housing member includes at least one indentation for engaging to the at least one adaptation member.

45. The device of claim 38, wherein the needle housing member detaches from the proximal handle member by moving the needle housing member in the substantially transverse direction, thereby causing the at least one indentation to disengage from the at least one adaptation.

46. The device of claim 38, wherein the proximal handle member includes a release member that engages and disengages the needle housing member.

47. The device of claim 38, wherein the release member is depressible.

48. The device of claim 38, wherein the strain relief member reduces a drag force between the needle and sheath lumen as the needle is removed from the sheath lumen.

49. The device of claim 38, wherein at least a portion of the needle includes materials or design features to enhance echogenicity and ultrasonic visibility.

50. The device of claim 38, wherein the needle further includes a stylet disposed therein.

51. A device for needle biopsy, comprising:

a handle member having proximal and distal portions;

a proximal handle member disposed to the proximal portion of the handle member that is configured for slideable engagement to the proximal portion of the handle member and includes a friction member that engages at least one indentation of a first series of indentations along the proximal portion of the handle member to limit slideable movement;

a distal handle member disposed to the distal portion of the handle member that is configured for slideable engagement to the distal portion of the handle member and includes a friction member that engages at least one indentation of a second series of indentations along the distal portion of the handle member to limit slideable movement;

a sheath lumen disposed within the handle member and extending from the distal portion of the handle member;

a needle housing member partially disposed to the proximal portion of the handle member;

a needle disposed within the sheath lumen, the needle including a plurality of protrusions disposed thereon; and

at least a portion of the needle surrounded by a polymer.