Pulse oximeter access apparatus and method

• US 7,483,729 B2
• Filed: 11/04/2004
• Issued: 01/27/2009
• Est. Priority Date: 11/05/2003
• Status: Active Grant

• Current Assignee: Masimo Corporation
• Original Assignee: Masimo Corporation
• Inventors: Coverston, Ronald, Al-Ali, Ammar, Kiani, Massi E.
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US10/981,186
• Publication Number:
  US 20050101848A1
• Time in Patent Office: 1,545 Days
• Field of Search: 600/323, 600/310, 600/322, 600/344
• US Class Current: 600/323
• CPC Class Codes: A61B 2560/0266 for monitoring or limiting apparatus function
• CPC Class Codes: A61B 2560/0475 Special features of memory means, e.g. removable memory cards
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 2562/221 Arrangements of sensors with cables or leads, e.g. cable harnesses
• CPC Class Codes: A61B 2562/222 Electrical cables or leads therefor, e.g. coaxial cables or ribbon cables
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/7221 Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take precedence
• CPC Class Codes: A61B 5/7271 Specific aspects of physiological measurement analysis A61B5/316, A61B5/349 and A61B5/374 take precedence

Abstract

Access is provided to certain pulse oximetry systems utilizing a keyed sensor and a corresponding locked sensor port of a restricted access monitor. In such systems, the keyed sensor has a key comprising a memory element, and the monitor has a memory reader associated with the sensor port. The monitor is configured to function only when the key is in communications with the locked sensor port, and the memory reader is able to retrieve predetermined data from the memory element. The monitor is accessed by providing the key separate from the keyed sensor, integrating the key into an adapter cable, and connecting the adapter cable between the sensor port and an unkeyed sensor so that the monitor functions with the unkeyed sensor.

Claims

1. In a pulse oximetry system comprising a keyed sensor and a corresponding locked sensor port of a restricted access monitor, an access method comprising the steps of:

obtaining a key including a memory element from a keyed sensor by removing said key from said keyed sensor, wherein said key of said keyed sensor comprises a memory element accessible by a memory reader associated with a locked sensor port of a restricted access monitor, said monitor configured to function when said sensor port is unlocked by said reader retrieving predetermined data from said memory element of said key;

integrating said key into an adapter cable; and

connecting said adapter cable between said sensor port and a unkeyed sensor so that said monitor functions with said unkeyed sensor.

2. The access method according to claim 1 wherein said obtaining step comprises the substep of purchasing said keyed sensor including said key.

3. The access method according to claim 2 wherein said obtaining step comprises the substep of detaching a patient cable connector containing said key from said keyed sensor.

4. The access method according to claim 2 wherein said obtaining step comprises the substep of removing said key from a patient cable connector portion of said keyed sensor.

5. The access method according to claim 1 wherein said obtaining step comprises the substeps of:

providing said memory element;

programming said memory element with said predetermined data; and

incorporating said memory element into a connector.

6. The access method according to claim 1 wherein said integrating step comprises the substeps of:

providing a keyless adapter cable having a first end, an opposite second end, and a first connector attached to said first end; and

attaching a second connector having said key to said second end.

7. The access method according to claim 6 wherein:

said adapter cable is a sensor adapter;

said first connector is a sensor connector adapted to mate with a patient cable connector of a non-keyed sensor; and

said second connector is a patient cable connector adapted to mate with a sensor connector of a patient cable.

8. The access method according to claim 6 wherein:

said adapter cable is a patient cable; and

said second connector is one of a monitor connector adapted to mate with said sensor port and a sensor connector adapter to mate with a patient cable connector of said unkeyed sensor.

9. The access method according to claim 1 wherein said connecting step comprises the substeps of:

mating a patient cable to said sensor port;

connecting said adapter cable between said patient cable and said unkeyed sensor.

10. The access method according to claim 1 wherein said connecting step comprises the substeps of:

mating said adapter cable to said sensor port;

connecting said unkeyed sensor to said adapter cable.