MOBILE TORUS DEVICES

• US 20090248061A1
• Filed: 01/29/2009
• Published: 10/01/2009
• Est. Priority Date: 01/29/2008
• Status: Active Grant

• Current Assignee: OHK Medical Devices Ltd.
• Original Assignee: OHK Medical Devices Ltd.
• Inventors: Rousso, Benny, Gavriely, Oren, GAVRIELY, Noam
• Granted Patent: US 9,131,944 B2
• Time in Patent Office: Days
• US Class Current: 606/201
• CPC Class Codes: A61B 17/1322 comprising a flexible encircling member A61B17/135 takes precedence
• CPC Class Codes: A61B 17/1355 Automated control means therefor

Abstract

Disclosed is a device for exsanguinating a portion of an extremity, the device comprising a torus having a variable circumferential diameter, the torus configured to encircle an extremity portion and apply exsanguination pressure thereto, and a transducer operatively associated with the torus, the transducer, while the torus is encircling the extremity portion, being configured to control at least one of a diameter of the variable circumferential diameter, a tension in the torus and a pressure applied by the torus.

Claims

1. A device for exsanguinating a portion of an extremity, the device comprising:

i) a torus having a variable circumferential diameter, said torus configured to encircle an extremity portion and apply exsanguination pressure thereto; and

ii) a transducer operatively associated with said torus, said transducer, while said torus is encircling said extremity portion, being configured to control at least one of;

a diameter of said variable circumferential diameter;

a tension in said torus; and

a pressure applied by said torus.

2. The device according to claim 1, wherein during moving of said torus, said transducer is configured to apply a substantially constant exsanguinating pressure to said extremity portion.

3. The device according to claim 1, wherein said torus is configured to move along said extremity portion with at least one of:

twisting rotation; and

sliding.

4. The device according to claim 1, wherein said torus includes at least one wheel located around a cross sectional section of an annular portion of said torus, said at least one wheel and configured to roll as said torus moves linearly along said extremity portion.

5. The device according to claim 4, wherein said torus is configured to move under power applied from a power source that is external to said at least one wheel.

6. The device according to claim 5, wherein said power source is comprises a manual power source.

7. The device according to claim 4, wherein said torus is configured to move under power applied from a power source that is internal to said at least one wheel.

8. The device according to claim 7, wherein said power source is comprises motorized power source.

9. The device according to claim 4, wherein an outer surface of said at least one wheel comprises at least two projections configured to contact at least a portion of said extremity portion.

10. The device according to claim 4, wherein said at least one wheel, comprises at least two wheels:

one first wheel configured to slidingly engage at least one second wheel.

11. The device according to claim 1, wherein said torus includes at least one handle configured to provide at least one of:

pulling said torus along said extremity portion; and

guiding said torus along said extremity portion.

12. The device according to claim 11, wherein said at least one handle is rotatably connected to said torus.

13. The device according to claim 1, wherein said transducer comprises at least two bands of fibers at least partially encircling said torus, said at least two bands of fibers comprising:

at least one first band of fibers having a first rate of elasticity; and

at least one second band of fibers having a second rate of elasticity.

14. The device according to claim 13, wherein:

said at least one first band of fibers break when stretched above said first rate of elasticity; and

said at least one second band of fibers break when stretched above said second rate of elasticity.

15. The device according to claim 13, wherein said torus includes at least one handle configured to provide at least one of:

pulling said torus along said extremity portion; and

guiding said torus along said extremity portion.

16. The device according to claim 15, wherein said torus includes at least one motor configured to propel said torus during moving of said torus.

17. The device according to claim 1, wherein said transducer, comprises at least one of:

at least one variably extendable tension band;

at least one variably inflatable ballast;

at least one spring;

at least one hydraulic piston; and

at least two sections of a diaphragm.

18. The device according to claim 17, wherein said transducer includes a tension controller including a tension level input.

19. The device according to claim 18, wherein said tension level input comprises a wireless transceiver configured to receive and transmit wireless tension-based signals.

20. The device according to claim 17, wherein said torus includes at least one pulling handle configured to pull said torus along said extremity portion.

21. The device according to claim 20, wherein said torus includes at least one motor configured to propel said torus during moving of said torus.

22. The device according to claim 17, wherein said at least one variably inflatable ballast is substantially contained within a cross sectional portion of said torus.

23. The device according to claim 17, wherein said at least one spring comprises at least one spring assembly comprising at least one of:

dual constant rate springs;

a dual variable rate spring; and

a triple variable rate spring.

24. The device according to claim 23, wherein said at least one spring assembly includes at least one spring attenuator comprising at least one magnetic field.

25. A method for exsanguinating an extremity portion, the method comprising:

i) providing a torus configured to encircle a cross sectional annulus of an extremity portion;

ii) moving said torus along said extremity portion; and

iii) applying a substantially constant exsanguinating pressure with said torus to said extremity during said moving.

26. The method according to claim 25, wherein said torus includes one variable circumferential diameter adjuster configured to apply said substantially constant exsanguinating pressure to said extremity portion.

27. The method according to claim 26, wherein said one variable circumferential diameter adjuster has a constant coefficient of tension comprising at least one of:

a constant rate spring;

a dual variable rate spring; and

a triple variable rate spring.

28. The method according to claim 26, wherein said one variable circumferential diameter adjuster has a variable coefficient of tension comprising at least one of:

a variable length band;

a variable rate piston; and

a variably inflatable ballast.

29. The method according to claim 26, wherein said one variable circumferential diameter adjuster comprises multiple sections comprising at least one of:

at least two fibers having differing rates of elasticity; and

at least two sections of a diaphragm.

30. The method according to claim 25, wherein said moving of said torus along said extremity portion comprises at least one of:

twisting rotation;

rolling; and

sliding.

31. A device for maintaining exsanguination of a portion of an extremity, the device comprising:

a torus comprising a variably inflatable ballast; and

a variable ballast inflator substantially contained within a cross sectional portion of said torus.

32. The device according to claim 31, wherein said variably inflatable ballast varies said inflation while said torus is moved proximally.

33. The device according to claim 31, wherein said variably inflatable ballast varies said inflation while said torus is moved distally.

34. The device according to claim 31, wherein said variably inflatable ballast is substantially contained within a cross sectional portion of said torus.

35. The device according to claim 31, wherein said variable ballast inflator includes a tension sensor.

36. The device according to claim 35, wherein said tension sensor is substantially contained within a cross sectional portion of said torus.

37. The device according to claim 36, wherein said variable ballast inflator includes a wireless transceiver configured to receive and transmit inflation-based signals.