Surgical hair trimmer

• US 20080216324A1
• Filed: 03/08/2007
• Published: 09/11/2008
• Est. Priority Date: 03/08/2007
• Status: Abandoned Application

• Current Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Tauer, Mark
• Application Number:
  US11/716,501
• Publication Number:
  US 20080216324A1
• Time in Patent Office: Days
• US Class Current: 30/42
• CPC Class Codes: A61B 2017/00752 Hair removal or transplantation
• CPC Class Codes: A61B 90/00 Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges protective face masks A41D13/11; surgeon's or patient's gowns or dresses A41D13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M1/00
• CPC Class Codes: B26B 19/06 involving co-operating cutting elements both of which have shearing teeth
• CPC Class Codes: B26B 19/3846 Blades; Cutters B26B19/044, B26B19/141 take precedence
• CPC Class Codes: B26B 19/3853 Housing or handle

Abstract

A surgical hair trimmer is provided including a handle assembly including a power source, a drive motor connected to the power source and having a drive shaft extending therefrom, and a release mechanism configured and adapted for single handed operation; and a blade assembly including a pair of blades wherein at least one of the pair of blades is movable with respect to the other of the pair of blades, an interconnect configured and adapted to operatively couple the drive shaft to the movable blade when the blade assembly is connected to the handle assembly, and engagement structure configured and adapted to selectively engage the release mechanism of the handle assembly. In use, actuation of the release mechanism, when the blade assembly is connected to the handle assembly, jettisons the blade assembly from the handle assembly.

Claims

1. A surgical hair trimmer, comprising:

a handle assembly including;

a handle housing configured and dimensioned to house a power supply and a drive motor, wherein the drive motor includes a drive shaft extending through a distal end of the handle housing; and

a release mechanism associated with the handle housing, the release mechanism including;

a pair of clasps each pivotally supported in a release housing at a respective pivot point, each clasp including a leg portion extending in a first direction from the pivot point and an arm portion extending in a second direction from the pivot point, the arm portion of each clasp defining a distal finger configured and adapted for engaging a blade assembly; and

a release button operatively associated with the leg portion of each clasp; and

a blade assembly selectively connectable to the handle assembly, the blade assembly including;

a blade housing configured and dimensioned to house a pair of trimmer blades; and

an engagement structure formed in blade housing for selectively engaging the distal finger of each arm portion of each clasp;

a biasing member operatively associated with each clasp for maintaining said arms in a first position relative to one another; and

wherein when the blade assembly is connected to the handle assembly the distal end of the arm of each clasp of the release mechanism engages with a corresponding engagement structure of the blade housing of the blade assembly, and wherein actuation of the release button of the release mechanism jettisons the blade assembly from the handle assembly.

2. The surgical hair trimmer according to claim 1, wherein the release button is provided on an upper surface of the handle housing.

3. The surgical hair trimmer according to claim 1, wherein the distal end of the arm of at least one clasp extends in an inward direction.

4. The surgical hair trimmer according to claim 1, further comprising at least one visual indicator supported on the handle housing.

5. The surgical hair trimmer according to claim 1, wherein a distal end of the handle housing includes a shroud extending therefrom.

6. The surgical hair trimmer according to claim 1, wherein the leg portion and the arm portion of each clasp are oriented at an angle with respect to one another.

7. The surgical hair trimmer according to claim 1, wherein the biasing member tends to maintain the distal end of each arm portion of each clasp relatively approximated toward one another.

8. The surgical hair trimmer according to claim 1, wherein the biasing member is operatively associated with at least one of the release mechanism and the blade assembly.

9. The surgical hair trimmer according to claim 8, wherein the biasing member includes at least one leaf spring extending from the blade housing and in operative contact with a respective leg portion of each clasp when the blade assembly is connected to the handle assembly.

10. The surgical hair trimmer according to claim 9, wherein the biasing member tends to maintain the release button in an extended condition when the blade assembly is connected to the handle assembly.

11. The surgical hair trimmer according to claim 8, wherein the biasing member includes at least one leaf spring extending from each clasp and in operative contact with the housing of the release mechanism.

12. The surgical hair trimmer according to claim 11, wherein the biasing member tends to maintain the release button in an extended condition when the blade assembly is connected to the handle assembly.

13. A surgical hair trimmer, comprising:

a handle assembly including a power source, a drive motor connected to the power source and having a drive shaft extending therefrom, and a release mechanism configured and adapted for single handed operation; and

a blade assembly including a pair of blades wherein at least one of the pair of blades is movable with respect to the other of the pair of blades, and engagement structure configured and adapted to selectively engage the release mechanism of the handle assembly,

wherein actuation of the release mechanism, when the blade assembly is connected to the handle assembly, jettisons the blade assembly from the handle assembly.

14. The surgical hair trimmer according to claim 13, wherein the release mechanism includes:

a pair of clasps each pivotally supported in a release housing at a respective pivot point, each clasp including a leg portion extending in a first direction from the pivot point and an arm portion extending in a second direction from the pivot point, the arm portion of each clasp defining a distal finger configured and adapted for engaging a blade assembly; and

a release button operatively associated with the leg portion of each clasp.

15. The surgical hair trimmer according to claim 14, wherein the blade assembly includes:

a blade housing configured and dimensioned to house a pair of trimmer blades; and

an engagement structure formed in blade housing for selectively engaging the distal finger of each arm portion of each clasp.

16. The surgical hair trimmer according to claim 15, further comprising a biasing member operatively associated with each clasp for maintaining said arms in a first position relative to one another;

wherein when the blade assembly is connected to the handle assembly the distal end of the arm of each clasp of the release mechanism engages with a corresponding engagement structure of the blade housing of the blade assembly, and wherein actuation of the release button of the release mechanism jettisons the blade assembly from the handle assembly.

17. The surgical hair trimmer according to claim 14, wherein the release button is provided on an upper surface of the handle housing.

18. The surgical hair trimmer according to claim 14, wherein the distal end of the arm of at least one clasp extends in an inward direction.

19. The surgical hair trimmer according to claim 13, further comprising at least one visual indicator supported on the handle housing.

20. The surgical hair trimmer according to claim 13, wherein a distal end of the handle assembly includes a shroud extending therefrom.

21. The surgical hair trimmer according to claim 14, wherein the leg portion and the arm portion of each clasp are oriented at an angle with respect to one another.

22. The surgical hair trimmer according to claim 16, wherein the biasing member tends to maintain the distal end of each arm portion of each clasp relatively approximated toward one another.

23. The surgical hair trimmer according to claim 16 wherein the biasing member is operatively associated with at least one of the release mechanism and the blade assembly.

24. The surgical hair trimmer according to claim 23, wherein the biasing member includes at least one leaf spring extending from the blade housing and in operative contact with a respective leg portion of each clasp when the blade assembly is connected to the handle assembly.

25. The surgical hair trimmer according to claim 24, wherein the biasing member tends to maintain the release button in an extended condition when the blade assembly is connected to the handle assembly.

26. The surgical hair trimmer according to claim 23, wherein the biasing member includes at least one leaf spring extending from each clasp and in operative contact with the housing of the release mechanism.

27. The surgical hair trimmer according to claim 26, wherein the biasing member tends to maintain the release button in an extended condition when the blade assembly is connected to the handle assembly.