Catheter or guidewire device including flow sensing and use thereof

• US 9,750,421 B2
• Filed: 02/18/2016
• Issued: 09/05/2017
• Est. Priority Date: 07/05/2012
• Status: Active Grant

• Current Assignee: Medidata Solutions Incorporated (Dassault Systemes SA)
• Original Assignee: MC10, Inc.
• Inventors: Ghaffari, Roozbeh, Lee, Stephen, Work, John, Wright, Jr., John A., Klinker, Lauren
• Primary Examiner(s): Wieland, Robert N
• Application Number:
  US15/047,333
• Publication Number:
  US 20160213424A1
• Time in Patent Office: 565 Days
• CPC Class Codes: A61B 18/02 by cooling, e.g. cryogenic techniques devices for cooling specific reflex points of the body within cell-life limits A61H39/06
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 2017/00088 using thermistors
• CPC Class Codes: A61B 2017/00092 using thermocouples
• CPC Class Codes: A61B 2018/00005 Cooling or heating of the probe or tissue immediately surrounding the probe
• CPC Class Codes: A61B 2018/00214 Expandable means emitting energy, e.g. by elements carried thereon
• CPC Class Codes: A61B 2018/0022 Balloons
• CPC Class Codes: A61B 2018/00267 having a basket shaped structure
• CPC Class Codes: A61B 2018/00273 Anchoring means for temporary attachment of a device to tissue
• CPC Class Codes: A61B 2018/00386 Coronary vessels
• CPC Class Codes: A61B 2018/00404 Blood vessels other than those in or around the heart
• CPC Class Codes: A61B 2018/00434 Neural system
• CPC Class Codes: A61B 2018/00494 Stomach, intestines or bowel
• CPC Class Codes: A61B 2018/00511 Kidney
• CPC Class Codes: A61B 2018/00517 Urinary bladder or urethra
• CPC Class Codes: A61B 2018/00541 Lung or bronchi
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00642 with feedback, i.e. closed loop control
• CPC Class Codes: A61B 2018/00648 using more than one sensed parameter
• CPC Class Codes: A61B 2018/00666 using a threshold value
• CPC Class Codes: A61B 2018/00672 : lower
• CPC Class Codes: A61B 2018/00678 : upper
• CPC Class Codes: A61B 2018/00708 : switching the power on or off
• CPC Class Codes: A61B 2018/00744 : Fluid flow
• CPC Class Codes: A61B 2018/00791 : Temperature
• CPC Class Codes: A61B 2018/00797 : measured by multiple temperature sensors
• CPC Class Codes: A61B 2018/00815 : measured by a thermistor
• CPC Class Codes: A61B 2018/00821 : measured by a thermocouple
• CPC Class Codes: A61B 2018/00839 : Bioelectrical parameters, e.g. ECG, EEG
• CPC Class Codes: A61B 2018/00863 : Fluid flow
• CPC Class Codes: A61B 2018/00875 : Resistance or impedance
• CPC Class Codes: A61B 2018/0212 : using an instrument inserted into a body lumen, e.g. catheter
• CPC Class Codes: A61B 2018/1861 : with an instrument inserted into a body lumen or cavity, e.g. a catheter
• CPC Class Codes: A61B 2018/20361 : with redirecting based on sensed condition, e.g. tissue analysis or tissue movement
• CPC Class Codes: A61B 2018/205547 : Controller with specific architecture or programmatic algorithm for directing scan path, spot size or shape, or spot intensity, fluence or irradiance
• CPC Class Codes: A61B 2034/252 : indicating steps of a surgical procedure
• CPC Class Codes: A61B 2034/254 : being adapted depending on the stage of the surgical procedure
• CPC Class Codes: A61B 2090/065 : for measuring contact or contact pressure
• CPC Class Codes: A61B 34/25 : User interfaces for surgical systems
• CPC Class Codes: A61B 34/35 : for telesurgery
• CPC Class Codes: A61B 5/027 : using catheters
• CPC Class Codes: A61B 5/6851 : Guide wires
• CPC Class Codes: A61B 90/30 : Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
• CPC Class Codes: A61B 90/70 : Cleaning devices specially adapted for surgical instruments
• CPC Class Codes: A61N 1/0514 : Electrodes for the urinary tract
• CPC Class Codes: A61N 1/36007 : of urogenital or gastrointestinal organs, e.g. for incontinence control
• CPC Class Codes: A61N 1/36135 : using physiological parameters
• CPC Class Codes: A61N 7/02 : Localised ultrasound hyperthermia hyperthermia in general A61F7/00

Abstract

Devices and methods are provided for performing procedure on tissue with flow monitoring using flow sensors. The devices include an elongated member, and at least one flow sensor disposed on the elongated member. The flow sensor includes at least one temperature sensor and at least one heating element having a cavity. At least a portion of the at least one temperature sensor is housed in the cavity. A temperature measurement of the temperature sensor provides an indication of the flow rate of a fluid proximate to the flow sensor.

Claims

1. An apparatus for displaying representations of parameters of an inflatable body and/or expandable body disposed proximate to a portion of a tissue, the inflatable body and/or expandable body comprising a plurality of sensors coupled to at least a portion of the inflatable body and/or expandable body, the apparatus comprising:

a user interface;

at least one memory to store processor-executable instructions; and

at least one processing unit communicatively coupled to the at least one memory, wherein, upon execution of the processor-executable instructions, the at least one processing unit;

controls the user interface to display at least one representation of the parameters, the at least one representation comprising;

(A) a first representation of a state of the inflatable body and/or expandable body, the first representation comprising;

(i) a first form indicator to indicate that the inflatable body and/or expandable body is in an inflated and/or an expanded state;

or

(ii) a second form indicator to indicate that the inflatable body and/or expandable body is in a deflated and/or a collapsed state; and

(B) a second representation of a state of at least one sensor of the plurality of sensors, the second representation comprising;

(i) a first activation indicator to indicate that the at least one sensor of the plurality of sensors measures a signal below a threshold value;

or

(ii) a second activation indicator to indicate that the at least one sensor of the plurality of sensors measures a signal above or about equal to the threshold value,

wherein the second representation is indicative of a magnitude of an instantaneous velocity.

2. The apparatus of claim 1, wherein the signal below the threshold value indicates that the at least one sensor is not in contact with a portion of the tissue, and wherein the signal above or about equal to the threshold value indicates that the at least one sensor is in contact with a portion of the tissue.

3. The apparatus of claim 1, wherein the first activation indicator and the second activation indicator are displayed as binary visual representations.

4. The apparatus of claim 1, wherein the first activation indicator and the second activation indicator are displayed as quantitative visual representations that correspond to a magnitude of the signal.

5. The apparatus of claim 1, wherein the first form indicator and the second form indicator are displayed as color-coded symbols, where each color-coded symbol is indicative of a range of values of the magnitudes of the signal.

6. The apparatus of claim 1, wherein the first form indicator and the second form indicator further provide an indication of a spatial location of the corresponding at least one sensor relative to the inflatable body and/or expandable body.

7. The apparatus of claim 1, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to cause display of the first representation and the second representation in a staged process, such that:

no second representation is displayed while the first representation is the first form indicator; and

the second representation is displayed once the first representation is the second form indicator.

8. The apparatus of claim 1, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to further cause display of an indication of at least one stage of a procedure being performed on the portion of the tissue.

9. The apparatus of claim 1, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to cause display of an indication of an endpoint of a procedure being performed on the portion of the tissue.

10. An apparatus for displaying representations of parameters of an inflatable body and/or expandable body disposed proximate to a portion of a tissue, the inflatable body and/or expandable body comprising a plurality of sensors coupled to at least a portion of the inflatable body and/or expandable body, the apparatus comprising:

a user interface;

at least one memory to store processor-executable instructions; and

at least one processing unit communicatively coupled to the at least one memory, wherein, upon execution of the processor-executable instructions, the at least one processing unit;

controls the user interface to display at least one representation of the parameters, the at least one representation comprising;

(A) a first representation of a state of the inflatable body and/or expandable body, the first representation comprising;

(i) a first form indicator to indicate that the inflatable body and/or expandable body is in an inflated and/or an expanded state;

or

(ii) a second form indicator to indicate that the inflatable body and/or expandable body is in a deflated and/or a collapsed state; and

(B) a second representation of a state of at least one sensor of the plurality of sensors, the second representation comprising;

(i) a first activation indicator to indicate that the at least one sensor of the plurality of sensors measures a signal below a threshold value;

or

(ii) a second activation indicator to indicate that the at least one sensor of the plurality of sensors measures a signal above or about equal to the threshold value,

wherein the second representation is indicative of a magnitude of a volumetric flow.

11. The apparatus of claim 10, wherein the signal below the threshold value indicates that the at least one sensor is not in contact with a portion of the tissue, and wherein the signal above or about equal to the threshold value indicates that the at least one sensor is in contact with a portion of the tissue.

12. The apparatus of claim 10, wherein the first activation indicator and the second activation indicator are displayed as binary visual representations.

13. The apparatus of claim 10, wherein the first activation indicator and the second activation indicator are displayed as quantitative visual representations that correspond to a magnitude of the signal.

14. The apparatus of claim 10, wherein the first form indicator and the second form indicator are displayed as color-coded symbols, where each color-coded symbol is indicative of a range of values of the magnitudes of the signal.

15. The apparatus of claim 10, wherein the first form indicator and the second form indicator further provide an indication of a spatial location of the corresponding at least one sensor relative to the inflatable body and/or expandable body.

16. The apparatus of claim 10, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to cause display of the first representation and the second representation in a staged process, such that:

no second representation is displayed while the first representation is the first form indicator; and

the second representation is displayed once the first representation is the second form indicator.

17. The apparatus of claim 10, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to further cause display of an indication of at least one stage of a procedure being performed on the portion of the tissue.

18. The apparatus of claim 10, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to cause display of an indication of an endpoint of a procedure being performed on the portion of the tissue.

19. An apparatus for displaying representations of parameters of an inflatable body and/or expandable body disposed proximate to a portion of a tissue, the inflatable body and/or expandable body comprising a plurality of sensors coupled to at least a portion of the inflatable body and/or expandable body, the apparatus comprising:

a user interface;

at least one memory to store processor-executable instructions; and

at least one processing unit communicatively coupled to the at least one memory, wherein, upon execution of the processor-executable instructions, the at least one processing unit;

controls the user interface to display at least one representation of the parameters, the at least one representation comprising;

(A) a first representation of a state of the inflatable body and/or expandable body, the first representation comprising;

(i) a first form indicator to indicate that the inflatable body and/or expandable body is in an inflated and/or an expanded state;

or

(ii) a second form indicator to indicate that the inflatable body and/or expandable body is in a deflated and/or a collapsed state; and

(B) a second representation of a state of at least one sensor of the plurality of sensors, the second representation comprising;

(i) a first activation indicator to indicate that the at least one sensor of the plurality of sensors measures a signal below a threshold value;

or

(ii) a second activation indicator to indicate that the at least one sensor of the plurality of sensors measures a signal above or about equal to the threshold value,

wherein the second representation is indicative of a magnitude of a vascular resistance.

20. The apparatus of claim 19, wherein the signal below the threshold value indicates that the at least one sensor is not in contact with a portion of the tissue, and wherein the signal above or about equal to the threshold value indicates that the at least one sensor is in contact with a portion of the tissue.

21. The apparatus of claim 19, wherein the first activation indicator and the second activation indicator are displayed as binary visual representations.

22. The apparatus of claim 19, wherein the first activation indicator and the second activation indicator are displayed as quantitative visual representations that correspond to a magnitude of the signal.

23. The apparatus of claim 19, wherein the first form indicator and the second form indicator are displayed as color-coded symbols, where each color-coded symbol is indicative of a range of values of the magnitudes of the signal.

24. The apparatus of claim 19, wherein the first form indicator and the second form indicator further provide an indication of a spatial location of the corresponding at least one sensor relative to the inflatable body and/or expandable body.

25. The apparatus of claim 19, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to cause display of the first representation and the second representation in a staged process, such that:

no second representation is displayed while the first representation is the first form indicator; and

the second representation is displayed once the first representation is the second form indicator.

26. The apparatus of claim 19, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to further cause display of an indication of at least one stage of a procedure being performed on the portion of the tissue.

27. The apparatus of claim 19, wherein, upon execution of the processor-executable instructions, the at least one processing unit controls the user interface to cause display of an indication of an endpoint of a procedure being performed on the portion of the tissue.