Devices, systems, and methods and associated display screens for assessment of vessels

Patent metadata

Field	Value
Publication number	US-9974443-B2
Application number	US-201514627441-A
Country	US
Kind code	B2
Filing date	Feb 20, 2015
Priority date	Feb 20, 2014
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

Devices, systems, and methods for visually depicting a vessel and evaluating treatment options are disclosed. The methods can include obtaining pressure measurements from first and second instruments positioned within a vessel of a patient while the second instrument is moved longitudinally through the vessel from a first position to a second position and the first instrument remains stationary within the vessel; and outputting a visual representation of the pressure measurements obtained by the first and second instruments on a display, the output visual representation including a graphical display of a pressure ratio of the obtained pressure measurements and at least a portion of a pressure waveform of the obtained pressure measurements identifying a diagnostic period utilized in calculating the pressure ratio.

First claim

What is claimed is:

1. A method of evaluating a vessel of a patient, comprising:
obtaining pressure measurements from first and second instruments positioned within a vessel of a patient while the second instrument is moved longitudinally through the vessel from a first position to a second position and the first instrument remains stationary within the vessel; and
outputting a screen display having visual representations of a pressure ratio calculated using the pressure measurements obtained by the first and second instruments on a display, the screen display including:
a numerical value of the pressure ratio; and
a graph of the pressure ratio over a time the second instrument is moved longitudinally through the vessel from the first position to the second position.

2. The method of claim 1 , wherein the first position is distal of at least one stenosis of the vessel and wherein the second position is proximal of the at least one stenosis of the vessel such that moving the second instrument longitudinally through the vessel comprises a pullback.

3. The method of claim 1 , wherein the graph of the pressure ratio comprises a change in the pressure ratio over the time.

4. The method of claim 3 , wherein the change in the pressure ratio comprises a cumulative change in the pressure ratio over the time.

5. The method of claim 3 , wherein the change in the pressure ratio comprises a localized change in the pressure ratio over the time.

6. The method of claim 1 , wherein screen display comprises a first area comprising the numerical value and a second area comprising the graph of the pressure ratio.

7. The method of claim 6 , wherein the first area is adjacent to the second area.

8. A system for evaluating a vessel of a patient, comprising:
a processing system in communication with first and second instruments sized and shaped for introduction into the vessel of the patient, the processing unit configured to:
obtain pressure measurements from the first and second instruments while the second instrument is moved longitudinally through the vessel of the patient from a first position to a second position while the first instrument is maintained in a fixed longitudinal position with respect to the vessel; and
output a screen display having visual representations of a pressure ratio calculated using the pressure measurements obtained by the first and second instruments on a display in communication with the processing system, the screen display including:
a numerical value of the pressure ratio; and
a graph of the pressure ratio over a time the second instrument is moved longitudinally through the vessel from the first position to the second position.

9. The system of claim 8 , wherein the first position is distal of at least one stenosis of the vessel and wherein the second position is proximal of the at least one stenosis of the vessel such that moving the second instrument longitudinally through the vessel comprises a pullback.

10. The system of claim 8 , wherein the graph of the pressure ratio comprises a change in the pressure ratio over the time.

11. The system of claim 10 , wherein the change in the pressure ratio comprises a cumulative change in the pressure ratio over the time.

12. The system of claim 10 , wherein the change in the pressure ratio comprises a localized change in the pressure ratio over the time.

13. The system of claim 8 , wherein screen display comprises a first area comprising the numerical value and a second area comprising the graph of the pressure ratio.

14. The system of claim 13 , wherein the first area is adjacent to the second area.

Assignees

• Koninklijke Philips Nv

Inventors

• Merritt Fergus
• Mittal Vaishali

Classifications

• G06T11/26

  Drawing of charts or graphs · CPC title

• A61B5/743

  Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots · CPC title

• A61B5/02007 Primary

  Evaluating blood vessel condition, e.g. elasticity, compliance · CPC title

• A61B5/02158

  provided with two or more sensor elements · CPC title

• A61B5/748

  Selection of a region of interest, e.g. using a graphics tablet · CPC title