Distributed medical sensing system and method

• US 8,977,336 B2
• Filed: 09/21/2012
• Issued: 03/10/2015
• Est. Priority Date: 04/08/2011
• Status: Active Grant

• Current Assignee: Volcano Corporation (Koninklijke Philips N.V.)
• Original Assignee: Volcano Corporation (Koninklijke Philips N.V.)
• Inventors: Huennekens, R. Scott, Sheehan, David M., Spencer, Jason, Kerr, Rex, Clark, Bill, Mansker, Richard E.
• Primary Examiner(s): Cwern, Jonathan
• Application Number:
  US13/624,500
• Publication Number:
  US 20130023762A1
• Time in Patent Office: 900 Days
• Field of Search: 600/407, 382/128, 705/2
• US Class Current: 600/407
• CPC Class Codes: A61B 5/0013 Medical image data A61B1/00011, A61B6/56, A61B8/56 take precedence
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0066 Optical coherence imaging
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/54 Control of the diagnostic device
• CPC Class Codes: A61B 8/565 involving data transmission via a network
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS

Abstract

A distributed medical sensing system including a first body sensing device configured to sense medical characteristics, the first body sensing device being located in a first sterile field and a second body sensing device configured to sense medical characteristics, the second body sensing device being located in a second sterile field, the second sterile field being spaced from the first sterile field. The system also includes a computing device outside of the first and second sterile fields and communicatively coupled to the first and second body sensing devices, the computing device configured to respectively receive first and second medical characteristic data from the first and second body sensing devices, process the first and second medical characteristic data, and transmit the processed first and second medical characteristic data to respective first and second user interface devices.

Claims

1. A distributed medical sensing system, comprising:

a first medical sensing device configured to collect and timestamp first medical sensing data;

a second medical sensing device configured to collect and timestamp second medical sensing data, the first and second medical sensing devices being located in a first sterile field and being associated with different medical sensing modalities;

a hub communicatively coupled to the first and second medical sensing devices and including a real-time clock, the hub being configured to transmit synchronization signals to the first and second medical sensing devices based on the real-time clock, wherein the first and second medical sensing devices are configured to respectively timestamp the first and second medical sensing data based on the synchronization signals received from the hub;

a bedside controller communicatively coupled to the hub and configured to provide user control of the first and second medical sensing devices, wherein the bedside controller includes a touch screen display configured to provide a first graphical user interface (GUI) corresponding to at least one of the first and second medical sensing devices such that a first aspect of a medical workflow associated with the sterile field is controllable with a user input via the first GUI, wherein the first GUI is automatically provided in response to at least one of the first and second medical sensing devices being communicatively coupled to the hub, and wherein the at least one of the first and second medical sensing devices collects medical sensing data in response to a corresponding user input received at the bedside controller via the first GUI;

a control room controller communicatively coupled to the hub and disposed outside of the sterile field, wherein the control room controller is configured to provide a second GUI such that a second aspect of the medical workflow associated with the sterile field is controllable with a user input via the second GUI, wherein the bedside controller and the control room controller are configured to simultaneously control the first and second aspects of the medical workflow in response to respective first and second user inputs associated with the first and second aspects of the medical workflow in the first sterile field, wherein the first and second aspects of the medical workflow are different; and

a centralized computer communicatively coupled to the hub, wherein the centralized computer is configured to receive the first and second medical sensing data from the hub and temporally co-register the first and second medical sensing data based on the timestamps attached thereto.

2. The distributed medical sensing system of claim 1, wherein the synchronization signals comprise one of square-wave clock signals and edge based clock signals.

3. The distributed medical sensing system of claim 1, further including a conductor coupled between the hub and the at least one of the first and second medical sensing devices configured to carry the synchronization signals therebetween.

4. The distributed medical sensing system of claim 1,

wherein the medical sensing modality associated with the first medical sensing device is one of intravascular ultrasound (IVUS) imaging, intravascular photoacoustic (IVPA) imaging, optical coherence tomography (OCT), forward looking IVUS (FL-IVUS), fractional flow reserve (FFR), coronary flow reserve (CFR), and angiography;

and

wherein the medical sensing modality associated with the second medical sensing device is a different one of IVUS imaging, IVPA imaging, OCT, FL-IVUS, FFR, CFR, and angiography.

5. The distributed medical sensing system of claim 1, wherein the centralized computer includes a master real-time clock, the centralized computer being configured to synchronize the real-time clock of the hub with the master real-time clock.

6. The distributed medical sensing system of claim 5, further including a plurality of hubs communicatively coupled to the centralized computer and each having a real-time clock, the centralized computer being configured to synchronize the real-time clock in each of the plurality of hubs with the master real-time clock.

7. The distributed medical sensing system of claim 6,

wherein the plurality of hubs are within different procedure rooms;

and

wherein the centralized computer is disposed in a different room than the sterile field.

8. The distributed medical sensing system of claim 7, wherein the centralized computer is located in a different building from the sterile field.

9. The distributed medical sensing system of claim 7, wherein the plurality of hubs are in different buildings from each other.

10. The distributed medical sensing system of claim 7,

wherein the plurality of hubs are in the same building;

and

further including a site manager communicatively interposed between the plurality of hubs and the centralized computer, the site manager being operable to manage data transmission between the plurality of hubs and the centralized computer.

11. The distributed medical sensing system of claim 6, wherein the centralized computer includes a scalable array of compute engines.

12. The distributed medical sensing system of claim 1, wherein the centralized computer is configured to process the first and second medical sensing data received from the hub and transmit the processed first and second medical sensing data to at least one of the bedside controller and the control room controller.

13. The distributed medical sensing system of claim 12, further including a data store located outside of the sterile field, the data store being configured to store at least the processed first and second medical sensing data.

14. The distributed medical sensing system of claim 1, wherein the at least one of the first and second medical sensing devices include a catheter configured to enter into a vessel of a body.

15. The distributed medical sensing system of claim 14, wherein the catheter includes a sensor configured for one of intravascular ultrasound (IVUS) imaging, optical coherence tomography (OCT), and a fractional flow reserve (FFR) determination.

16. The distributed medical sensing system of claim 1, further including a site manager communicatively interposed between the hub and the centralized computer, the site manager being operable to manage data transmission between the hub and the centralized computer.

17. A method of collecting medical data, comprising:

coupling a bedside controller and a control room controller to a hub, wherein the bedside controller is disposed within a sterile field and the control room controller is disposed outside the sterile field;

coupling a first body sensing device to the hub, the first body sensing device including a first sensor disposed thereon;

coupling a second body sensing device to the hub, the second body sensing device including a second sensor disposed thereon, the first and second body sensing devices being associated with different sensing modalities, wherein the bedside controller includes a touch screen display configured to provide a first graphical user interface (GUI) corresponding to at least one of the first and second body sensing devices such that a first aspect of a medical workflow associated with the sterile field is controllable with a user input via the first GUI, and wherein the first GUI is automatically provided in response at least one of the first and second body sensing devices being coupled to the hub, and wherein the control room controller is configured to provide a second GUI such that a second aspect of the medical workflow associated with the sterile field is controllable with a user input via the second GUI, wherein the bedside controller and the control room controller are configured to simultaneously control the first and second aspects of the medical workflow in the sterile field in response to respective first and second user inputs associated with the first and second aspects of the medical workflow, wherein the first and second aspects of the medical workflow are different;

receiving, at the hub, a master time synchronization signal from a centralized computing device including a master real-time clock, the centralized computing device being configured to synchronize a real-time clock of the hub with the master real-time clock;

transmitting, with the hub, initialization messages to the first and second body sensing devices communicatively coupled to the hub to reset respective timestamps in the first and second body sensing devices;

synchronizing, with the hub, the timestamps of the first and second body sensing devices so that each reports the same timestamp in response to a request from the hub;

transmitting, with the hub, a start message to the first and second medical body sensing devices in response to a corresponding user input received at the bedside controller via the first GUI, the start message causing the first and second medical sensing devices to begin acquisition of medical sensing data at a common time; and

receiving, at the hub, first medical data having a first timestamp from the first body sensing device and second medical data having a second timestamp from the second body sensing device, wherein the first timestamp and the second timestamp are the same if the first and second medical data were collected concurrently.

18. The method of claim 17, wherein the synchronizing includes:

requesting and receiving, with the hub, timestamps from each of the first and second body sensing devices;

comparing the requested timestamps received from the first and second body sensing devices;

commanding, with the hub, one of the first and second body sensing devices to advance its timestamp if the requested timestamps are not the same; and

repeating the requesting, comparing, and commanding until the each of the first and second body sensing devices reports the same timestamp in response to a request from the hub.

19. The method of claim 17, wherein the hub utilizes the real-time clock to perform the synchronizing.

20. The method of claim 17, further including transmitting, with the hub, synchronization signals to the first and second body sensing devices to synchronize medical data collection.

21. The method of claim 17, wherein the first and second medical sensing devices are located in the sterile field.

22. The method of claim 21, wherein the centralized computing device is remote from the sterile field.

23. The method of claim 17,

wherein the first body sensing device is associated with one of intravascular ultrasound (IVUS) imaging, intravascular photoacoustic (IVPA) imaging, optical coherence tomography (OCT), forward looking IVUS (FL-IVUS), fractional flow reserve (FFR), coronary flow reserve (CFR), and angiography;

and

wherein the second body sensing device is associated with a different one of IVUS imaging, IVPA imaging, OCT, FL-IVUS, FFR, CFR, and angiography.

24. A distributed medical sensing system, comprising:

a centralized computer configured to process medical sensing data received over a communication network, the centralized computer including a grandmaster time server;

a hub communicatively coupled to the centralized computer via the communication network, the hub including a master time server that is synchronized to the grandmaster time server;

a first medical sensing device communicatively coupled to the hub and configured to collect first medical data associated with a first medical sensing modality, the first medical sensing device being a first time client of the master time server; and

a second medical sensing device communicatively coupled to the hub and configured to collect second medical data associated with a second medical sensing modality different than the first medical sensing modality, the second medical sensing device being a second time client of the master time server, wherein the hub is configured to synchronize collection of the first and second medical sensing data using the master time server, wherein the hub is further configured to associate timestamps with the first and second medical data as it is received from the first and second medical sensing devices, the timestamps being based on the master time server, and wherein the centralized computer is further configured to receive the first and second medical data from the hub and temporally co-register the first and second medical data based on the timestamps attached thereto;

a bedside controller communicatively coupled to the hub, wherein the bedside controller is configured to control the first and second medical sensing devices, wherein the bedside controller includes a touch screen display configured to provide a first graphical user interface (GUI) corresponding to at least one of the first and second medical sensing devices such that a first aspect of a medical workflow is controllable with a user input via the first GUI, and wherein the first GUI is automatically provided in response to the at least one of the first and second medical sensing devices being communicatively coupled to the hub, and wherein the at least one of the first and second medical sensing devices collects medical data in response to a corresponding user input received at the bedside controller via the first GUI;

a control room controller configured to provide a second GUI such that a second aspect of the medical workflow associated is controllable with a user input via the second GUI, wherein the bedside controller and the control room controller are configured to simultaneously control the first and second aspects of the medical workflow in response to respective first and second user inputs associated with the first and second aspects of the medical workflow, wherein the first and second aspects of the medical workflow are different.

25. The distributed medical sensing system of claim 24, wherein the hub is further configured to transmit synchronization signals to the first and second medical sensing devices based on the master time server to synchronize collection of the first and second medical sensing data.

26. The distributed medical sensing system of claim 24,

wherein the first medical sensing modality is one of intravascular ultrasound (IVUS) imaging, intravascular photoacoustic (IVPA) imaging, optical coherence tomography (OCT), forward looking IVUS (FL-IVUS), fractional flow reserve (FFR), coronary flow reserve (CFR), and angiography;

and

wherein the second medical sensing modality is a different one of IVUS imaging, IVPA imaging, OCT, FL-IVUS, FFR, CFR, and angiography.

27. The distributed medical sensing system of claim 24, wherein the grandmaster time server synchronizes the master time server using a network-based time synchronization protocol.

28. The distributed medical sensing system of claim 27, wherein the network-based time synchronization protocol is one of Precision Time Protocol (PTP) and Network Time Protocol (NTP).