Integrated system for assessing wound exudates

• US 10,207,031 B2
• Filed: 12/07/2011
• Issued: 02/19/2019
• Est. Priority Date: 12/08/2010
• Status: Active Grant

• Current Assignee: Convatec Incorporated (ConvaTec Group Plc)
• Original Assignee: Convatec Incorporated (ConvaTec Group Plc)
• Inventors: Toth, Landy Aaron
• Primary Examiner(s): Zimbouski, Ariana
• Application Number:
  US13/992,637
• Publication Number:
  US 20140058344A1
• Time in Patent Office: 2,631 Days
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61B 5/14557 specially adapted to extracorporeal circuits
• CPC Class Codes: A61B 5/412 Detecting or monitoring sepsis
• CPC Class Codes: A61B 5/445 Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 5/7235 Details of waveform analysis A61B5/349 takes precedence
• CPC Class Codes: A61M 1/73 comprising sensors or indicators for physical values
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/95 with sensors for exudate composition
• CPC Class Codes: A61M 1/96 Suction control thereof
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 2205/3389 Continuous level detection A61M2205/3393 takes precedence

Abstract

An integrated system for assessing wound exudates from the wound of a patient is described. The system may contain functionality to detect, process and report various wound parameters. The system also may make treatment determinations based on these findings. The system may detect one or more physiological values of the wound exudates from the wound of the patient. The system may means for comparing the one or more detected physiological values to predetermined physiological values in order to obtain a comparison result in real time. The system may include a processor 15 which provides an electronic signal based on a comparison result in which the electronic signal may correspond to guidelines for treating the wound 13. The system may be integrated with other wound treatment devices, such as negative pressure wound therapy devices (NPWT) 9.

Claims

1. A system for assessing wound exudate from a wound of a patient, said system comprising:

a wound treatment device;

a wound drain line having an interior for passage of the wound exudate, the interior comprising an obstruction to disturb exudate flow within a main flow wound drain line;

a first sensor or detector, and a second sensor or detector to detect or sense one or more values of one or more physiological parameters of the wound exudate, wherein the obstruction is positioned between the first sensor or detector and the second sensor or detector; and

a processor to convert the one or more values into one or more vectors and analyze the one or more vectors so as to obtain an assessment of the wound exudate and provide a treatment guideline based on the assessment.

2. The system of claim 1, wherein a behavior of disturbed exudate flow is useful for measuring viscosity, concentration, and/or composition of solid matter within the exudate flow.

3. The system of claim 1, wherein the first sensor or detector and the second sensor or detector are integral with the wound drain line.

4. The system of claim 1, further providing at least one light source for detecting or sensing the one or more physiological parameters.

5. The system of claim 4, wherein the light source is a multiband light source.

6. The system of claim 5, wherein the multiband light source includes a narrowband source, a broadband source or both.

9. The system of claim 1, in which the wound treatment device is a negative wound pressure therapy device for applying negative pressure to the wound of the patient.

10. The system of claim 9, further comprising an actuator or latch to control the application of negative pressure to the wound of the patient using the treatment guideline.

11. The system of claim 1, in which the wound treatment device is a dressing or a bandage.

12. The system of claim 11, in which the dressing or bandage is modified so as to integrate with the system.

13. The system of claim 12, in which the dressing or bandage includes an electrical trace.

14. The system of claim 1, in which the processor is operable to transmit the treatment guideline to an external device located remotely from the system.

15. The system of claim 1, in which the values of the one or more physiological parameters comprise luminosity values.

16. The system of claim 1, in which the values of the one or more physiological parameters comprise tone values.

7. A system for assessing wound exudate from a wound of a patient, said system comprising:

a wound treatment device;

a wound drain line having an interior for passage of the wound exudate, wherein the interior of the wound drain line comprises a tube arranged in a tortuous path;

a sensor or detector for sensing or detecting one or more values of one or more physiological parameters of the wound exudate; and

a processor for

(a) analyzing the values of the one or more physiological parameters so as to obtain an assessment of the wound exudate; and

(b) providing a treatment guideline based on the assessment;

wherein the wound treatment device, the sensor or detector, and the processor are integrated.

8. The system of claim 7, wherein the tortuous path eliminates ambient light during sensing or detecting.

17. The system of claim 7, in which the wound treatment device is a negative wound pressure therapy device for applying negative pressure to the wound of the patient.

18. The system of claim 17, further comprising an actuator or latch to control the application of negative pressure to the wound of the patient using the treatment guideline.

19. The system of claim 7, in which the wound treatment device is a dressing or a bandage.

20. The system of claim 7, in which the processor is operable to transmit the treatment guideline to an external device located remotely from the system.

21. The system of claim 7, in which the values of the one or more physiological parameters comprise luminosity values.

22. The system of claim 7, in which the values of the one or more physiological parameters comprise tone values.