Aspiration monitoring system and method

• US 9,895,473 B2
• Filed: 12/27/2015
• Issued: 02/20/2018
• Est. Priority Date: 04/08/2014
• Status: Active Grant

• Current Assignee: Incuvate, LLC
• Original Assignee: Incuvate, LLC
• Inventors: Look, David M., Culbert, Bradley S.
• Primary Examiner(s): Nguyen, Victor
• Application Number:
  US14/979,393
• Publication Number:
  US 20160106890A1
• Time in Patent Office: 786 Days
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 2017/00119 alarm; indicating an abnormal situation
• CPC Class Codes: A61B 2017/00221 with wireless transmission of data, e.g. by infrared radiation or radiowaves
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61M 1/732 Visual indicating means for vacuum pressure
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 2205/15 Detection of leaks
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/3327 Measuring
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 2205/3355 Controlling downstream pump pressure
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/583 by visual feedback

Abstract

In one embodiment, system for real time monitoring of catheter aspiration includes a housing having a first port adapted for connection to a vacuum source and a second port adapted for connection with an aspiration catheter, a pressure sensor in fluid communication with an interior of the housing, a measurement device coupled to the pressure sensor and configured for measuring deviations in fluid pressure, and a communication device coupled to the measurement device and configured to generate an alert signal when a deviation in fluid pressure measured by the measurement device exceeds a pre-set threshold. In another embodiment, the system for real time monitoring of catheter aspiration further includes a vacuum source for connection to the first port and an aspiration catheter having an aspiration lumen for connection to the second port.

Claims

1. A monitoring device for real time monitoring of catheter aspiration, comprising:

a housing having a first port adapted for connection to a vacuum source;

a pressure sensor in fluid communication with an interior of the housing;

a measurement device coupled to the pressure sensor and configured for measuring deviations in fluid pressure; and

a communication device coupled to the measurement device and configured to generate an alert signal when a deviation in fluid pressure measured by the measurement device exceeds a pre-set threshold, wherein the communication device is configured to generate a first type of alert in response to a deviation measured by the measurement device comprising an increase and decrease of vacuum pressure, wherein the increase and decrease of vacuum pressure comprises a baseline vacuum pressure and a peak vacuum pressure, and wherein the pre-set threshold is compared to a difference between the peak vacuum pressure and the baseline vacuum pressure.

2. The monitoring device of claim 1, wherein the pre-set threshold is between about 700 pascal and about 1700 pascal.

3. The monitoring device of claim 2, wherein the pre-set threshold is between about 1000 pascal and about 1300 pascal.

4. The monitoring device of claim 1, further comprising a memory module, wherein the measurement device is configured to compare measured deviations in pressure with information contained in the memory module.

5. The monitoring device of claim 1, wherein the measurement device comprises a microprocessor.

6. The monitoring device of claim 1, wherein the first port comprises a female luer connector.

7. The monitoring device of claim 1, wherein the alert signal is provided by at least one of an LED, a piezoelectric device, or a vibration device.

8. The monitoring device of claim 1, wherein the fluid pressure comprises a fluid pressure of blood being aspirated from a patient.

9. The monitoring device of claim 1, wherein the first type of alert comprises at least one of an audible alert, a visible alert, and a tactile alert.

10. The monitoring device of claim 1, wherein the increase and decrease of vacuum pressure corresponds to one or more portions of thrombus being aspirated through an aspiration lumen of an aspiration catheter connected to the second port.

11. The monitoring device of claim 1, wherein the communication device is configured to generate a second type of alert in response to the deviation comprising an increase and decrease of vacuum pressure no longer being measured by the measurement device.

12. The monitoring device of claim 1, wherein the alert signal is configured to indicate a clogged condition.

13. The monitoring device of claim 1, wherein the alert signal is configured to indicate a system leak.

14. The monitoring device of claim 1, wherein the alert signal is configured to indicate thrombus being aspirated.

15. The monitoring device of claim 1, wherein the alert signal is configured to indicate thrombus no longer being aspirated.

16. The monitoring device of claim 1, wherein the alert signal is configured to indicate at least two of the states selected from the group consisting of a clogged condition, a system leak, thrombus being aspirated, and thrombus no longer being aspirated.

17. The monitoring device of claim 1, wherein the pressure sensor is disposed within the interior of the housing.

18. The monitoring device of claim 1, further comprising an aspiration catheter having an aspiration lumen configured to be placed in fluid communication with the interior of the housing, wherein the pressure sensor is disposed within the aspiration lumen of the aspiration catheter.

19. A monitoring device for real time monitoring of catheter aspiration, comprising:

a housing having a first port adapted for connection to a vacuum source;

a pressure sensor disposed within an interior of the housing, the pressure sensor configured to measure negative pressure;

a measurement device coupled to the pressure sensor and configured for measuring deviations in negative fluid pressure; and

a communication device coupled to the measurement device and configured to generate an alert signal when a deviation in fluid pressure measured by the measurement device exceeds a pre-set threshold.

20. The monitoring device of claim 19, wherein the pre-set threshold is between about 700 pascal and about 1700 pascal.

21. The monitoring device of claim 20, wherein the pre-set threshold is between about 1000 pascal and about 1300 pascal.

22. The monitoring device of claim 19, further comprising a memory module, wherein the measurement device is configured to compare measured deviations in pressure with information contained in the memory module.

23. The monitoring device of claim 19, wherein the measurement device comprises a microprocessor.

24. The monitoring device of claim 19, wherein the first port comprises a female luer connector.

25. The monitoring device of claim 19, wherein the alert signal is provided by at least one of an LED, a piezoelectric device, or a vibration device.

26. The monitoring device of claim 19, wherein the fluid pressure comprises a fluid pressure of blood being aspirated from a patient.

27. The monitoring device of claim 19, wherein the alert signal is configured to indicate a clogged condition.

28. The monitoring device of claim 19, wherein the alert signal is configured to indicate a system leak.

29. The monitoring device of claim 19, wherein the alert signal is configured to indicate thrombus being aspirated.

30. The monitoring device of claim 19, wherein the alert signal is configured to indicate thrombus no longer being aspirated.

31. The monitoring device of claim 19, wherein the alert signal is configured to indicate at least two of the states selected from the group consisting of a clogged condition, a system leak, thrombus being aspirated, and thrombus no longer being aspirated.

32. The monitoring device of claim 19, further comprising an aspiration catheter having an aspiration lumen in fluid communication with the interior of the housing.

33. A monitoring device for real time monitoring of catheter aspiration, comprising:

a housing having a first port adapted for connection to a vacuum source;

a pressure sensor disposed within an interior of the housing;

a measurement device coupled to the pressure sensor and configured for measuring deviations in fluid pressure; and

a communication device coupled to the measurement device and configured to generate an alert signal when a deviation in fluid pressure measured by the measurement device exceeds a pre-set threshold, wherein the communication device is configured to generate a first type of alert in response to a deviation measured by the measurement device comprising an increase and decrease of vacuum pressure, wherein the increase and decrease of vacuum pressure comprises a baseline vacuum pressure and a peak vacuum pressure, and wherein the pre-set threshold is compared to a difference between the peak vacuum pressure and the baseline vacuum pressure.

34. The monitoring device of claim 33, wherein the first type of alert comprises at least one of an audible alert, a visible alert, and a tactile alert.

35. The monitoring device of claim 33, wherein the increase and decrease of vacuum pressure corresponds to one or more portions of thrombus being aspirated through an aspiration lumen of an aspiration catheter connected to the second port.

36. The monitoring device of claim 33, wherein the communication device is configured to generate a second type of alert in response to the deviation comprising an increase and decrease of vacuum pressure no longer being measured by the measurement device.