Compression device for the limb

• US 7,909,786 B2
• Filed: 07/21/2006
• Issued: 03/22/2011
• Est. Priority Date: 07/21/2005
• Status: Active Grant

• Current Assignee: Swelling Solutions, Inc. (Tactile Systems Technology, Inc.)
• Original Assignee: Convatec Incorporated (ConvaTec Group Plc)
• Inventors: Bonnefin, Wayne Lee, Fernandez, Jose Arsenio, Wild, David Geoffrey, Adams, Simon Mark, Christiansson, Mats
• Primary Examiner(s): Thanh; Quang D
• Application Number:
  US11/459,036
• Publication Number:
  US 20070049853A1
• Time in Patent Office: 1,705 Days
• Field of Search: 601/148, 601/149, 601/150, 601/151, 601/152
• US Class Current: 601/151
• CPC Class Codes: A61H 2205/10 Leg
• CPC Class Codes: A61H 9/0078 with intermittent or alternately inflated bladders or cuffs mattresses for preventing bed-sores with alternated pressurized chambers A61G7/05776
• CPC Class Codes: Y10S 601/20 Flexible membrane caused to be moved

Abstract

A compression device for a limb of a patient comprises an inflatable sleeve arranged to surround the limb and a conduit attached to the sleeve arranged to deliver fluid to the sleeve. The compression device also comprises a control system arranged to control fluid flow in the device and a memory arranged to store gathered data relating to use of the device.

Claims

1. A compression device for a limb of a patient comprising:

i. an inflatable sleeve arranged to surround the limb;

ii. a conduit attached to the sleeve arranged to deliver fluid to the sleeve;

iii. a control system arranged to control flow of fluid in the device; and

iv. a memory arranged to store gathered data relating to the duration of use of the device wherein the compression device is arranged to detect whether the sleeve is in place surrounding the limb and the gathered data is dependent upon detection of whether the sleeve is in place surrounding the limb.

2. The compression device as claimed in claim 1, wherein the control system comprises a pump and a controller unit.

3. The compression device as claimed in claim 1, further comprising a display device arranged to provide a display dependent on the gathered data.

4. The compression device as claimed in claim 1, wherein the memory is also arranged to store data relating to pressure exerted by the sleeve on the limb.

5. The compression device as claimed in claim 1, wherein the memory is also arranged to store data relating to a mode of operation of the device.

6. The compression device as claimed in claim 5, wherein the mode of operation of the device selects a predetermined pressure profile for the sleeve.

7. The compression device as claimed in claim 1, comprising one or more pressure sensors arranged to determine when the pressure exerted by the sleeve on the limb has reached a predetermined value.

8. The compression device as claimed in claim 1, wherein the inflatable sleeve includes one or more cells and each cell has an associated pressure sensor arranged to determine the pressure exerted by the cell.

9. The compression device as claimed in claim 8, wherein the one or more pressure sensors each comprises a fluid pressure sensor arranged to measure fluid pressure.

10. The compression device as claimed in claim 8, wherein the one or more pressure sensors each comprises an air pressure sensor arranged to measure the contact pressure between the sleeve and the limb.

11. The compression device as claimed in claim 1, wherein expected data values relating to use of the device are also stored in the memory.

12. The compression device as claimed in claim 11, wherein the control system is arranged to compare gathered data with expected data and thereby detect an error if the sleeve is not in place surrounding the limb, if there is an error in the device or if there is a puncture in the sleeve.

13. The compression device as claimed in claim 12, wherein the control system is arranged to determine whether the sleeve surrounds the limb by monitoring a change in pressure exerted by the sleeve as it is inflated.

14. The compression device as claimed in claim 13, wherein the control system is arranged to shut off delivery of fluid to the sleeve if it is determined that the sleeve is not in place surrounding the limb.

15. The compression device as claimed in claim 3 further comprising user input means arranged to receive a user input to cause the display dependent upon the gathered data to be displayed.

16. The compression device as claimed in claim 1, wherein the compression device is for the limb of a mobile patient.

17. A method of monitoring use of a compression device for a limb of a patient, said compression device comprising an inflatable sleeve arranged to surround the limb;

a conduit attached to the sleeve arranged to deliver fluid to the sleeve; and

a control system arranged to control flow of fluid in the compression device, comprising the step of storing gathered data relating to the duration of use of the compression device wherein the compression device is arranged to detect whether the sleeve is in place surrounding the limb and the gathered data is dependent upon detection of whether the sleeve is in place surrounding the limb.

18. The method of claim 17 further comprising the step of displaying information relating to the gathered data.

19. The method of claim 17, wherein the step of storing gathered data occurs with a data carrier carrying software which, when run on a processor of a control system of the compression device, is arranged to monitor use of the device.

20. A method of treating venous leg ulcers, venous insufficiency or deep vein thrombosis comprising applying a compression device to a limb of a patient, said compression device comprising an inflatable sleeve arranged to surround the limb;

a conduit attached to the sleeve arranged to deliver fluid to the sleeve; and

a control system arranged to control the flow of fluid in the compression device, gathering data relating to the duration of use of the compression device, and storing the data in a memory wherein the compression device is arranged to detect whether the sleeve is in place surrounding the limb and the gathered data is dependent upon detection of whether the sleeve is in place surrounding the limb.