Dual serial bus interface

• US 9,047,747 B2
• Filed: 11/18/2011
• Issued: 06/02/2015
• Est. Priority Date: 11/19/2010
• Status: Active Grant

• Current Assignee: Spacelabs Healthcare LLC (OSI Systems Incorporated)
• Original Assignee: Spacelabs Healthcare LLC (OSI Systems Incorporated)
• Inventors: Basta, Joseph Charles, Koenig, Robert Boyer, LaPerna, Joseph D., Wekell, William Oren
• Primary Examiner(s): Vo, Tim
• Assistant Examiner(s): Huynh, Kim T.
• Application Number:
  US13/300,478
• Publication Number:
  US 20120184120A1
• Time in Patent Office: 1,292 Days
• Field of Search: 710305-306, 710/110, 710/100, 710/105, 710/74, 700/3
• US Class Current: 1/1
• 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 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: G08B 21/02 Alarms for ensuring the safety of persons
• CPC Class Codes: G08B 25/005 Alarm destination chosen according to a hierarchy of available destinations, e.g. if hospital does not answer send to police station
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

An interface protocol for patient monitoring systems includes a Dual Serial Bus (DSB) interface. The DSB interface includes a first serial protocol that is USB, Firewire, or Ethernet protocol and a second serial protocol that is a low power serial (LPS) protocol. DSB interfaces provide for communication between DSB Hosts and DSB Devices and allow for the transfer of operating and battery charging power from DSB Host to DSB Device. In addition, the DSB host contains a switched Auxiliary Voltage Supply (AVS) which can provide up to 15 W of power to DSB devices for battery charging or other high power needs. The DSB interface eliminates the need for multiple cables for different parameter sensing devices as there is only one type of connector and, accordingly, reduces the risk of damage caused by inadvertently plugging a parameter sensing device into the wrong receptacle.

Claims

1. A dual serial bus(DSB) communication and power interface system for electronic components, capable of operating in a first serial protocol and a second serial protocol, comprising a physical cable between said components, wherein said physical cable contains at least six separate conductors and wherein said at least six separate conductors comprise:

A first conductor, wherein said first conductor is a virtual bus (VBUS) conductor and transfers power from a first electronic component to a second electronic component and wherein the first conductor is adapted to transfer 5V of power when operating in the first serial protocol and transfer 3.3V of power when operating in the second serial protocol;

A second conductor, wherein said second conductor is a data transmitting conductor and sends data from said first electronic component to said second electronic component;

A third conductor, wherein said third conductor is a data receiving conductor and receives data to said first electronic component sent from said second electronic component;

A third conductor, wherein said third conductor is a data receiving conductor and receives data to said first electronic component sent from said second electronic component;

A fourth conductor, wherein said fourth conductor is a ground(GND) conductor and receives return power to said first electronic component transferred from said second electronic component;

A fifth conductor, wherein said fifth conductor is an auxiliary voltage supply(AVS) conductor and is adapted to transfer higher amounts of power from said first electronic component to said second electronic component than is capable of being transferred by said first conductor while said first conductor is transferring power in accordance with the first or second serial protocol; and

,

A sixth conductor, wherein said sixth conductor is a spare conductor.

2. The dual serial bus communication and power interface system of claim 1, wherein said interface is used to communicate and distribute power between components of a patient monitoring system.

3. The dual serial bus communication and power interface system of claim 1, wherein each component is designated as a dual serial bus (DSB) Host, DSB Device, or, both a DSB Host and DSB Device.

4. The dual serial bus communication and power interface system of claim 3, wherein a DSB Host is in bi-directional communication with a connected DSB Device, can supply operating and battery charging power to the connected DSB Device, and can control the connected DSB Device.

5. The dual serial bus communication and power interface system of claim 3, wherein a DSB Host contains a switched Auxiliary Voltage Supply (AVS) which can provide up to 15 W of power to attached DSB Devices.

6. The dual serial bus communication and power interface system of claim 5, wherein the AVS power must be requested by a DSB Device and granted by the DSB Host.

7. The dual serial bus communication and power interface system of claim 3, wherein a DSB Host comprises any one of a Patient Worn Hub (PWH), Smart Display (SD), Headless Display (HD), Network Computer (NC), or, Parameter Transceiver (PT).

8. The dual serial bus communication and power interface system of claim 3, wherein a DSB Device comprises at least one of a ECG/respiration in 3-lead, 5-lead, 6-lead, and 10-lead configurations, SpO₂ sensor, invasive blood pressure (IBP) 4 channel adapter and single channel connection, cardiac output sensor, end tidal CO₂ sensor, continuous temperature sensor, SvO₂ sensor, bispectral index (BISx) sensor, multi-gas sensor, tympanic temperature sensor, or EEG sensor.

9. The dual serial bus communication and power interface system for electronic components of claim 3, wherein a Patient Worn Hub (PWH) functions both as a DSB Host and a DSB Device.

10. The dual serial bus communication and power interface system for electronic components of claim 3, wherein each DSB Host contains at least one DSB-A type receptacle which accepts only a DSB-A type plug and/or at least one integrated cable with a DSB-B type plug at the end of said cable and, each DSB Device contains at least one DSB-B type receptacle which accepts only a DSB-B type plug and/or at least one integrated cable with a DSB-A type plug at the end of said cable.

11. The dual serial bus communication and power interface system for electronic components of claim 10, wherein each DSB-A type receptacle and DSB-B type receptacle comprises a double stage sealing over the receptacle socket outer surface to prevent liquid ingress at the point of connection.

12. The dual serial bus communication and power interface system of claim 3, wherein a DSB Device is docked directly with a DSB Host, connected to a DSB Host via a fixedly attached cable, or connected to a DSB Host via a detachable DSB cable, wherein each detachable DSB cable contains a DSB-A type plug on one end and a DSB-B type plug on the other end.

13. The dual serial bus communication and power interface system for electronic components of claim 12, wherein, said fixedly attached cable and said detachable DSB cable transfer signal and power over a shielded multi-wire cable terminating in a connector with mating shields.

14. The dual serial bus communication and power interface system for electronic components of claim 4, wherein the VBUS voltage present on a DSB Host device determines whether the DSB Device operates in a USB mode or a LPS mode.