Device with a detectably designed water trap and process for detecting a water trap

• US 7,940,175 B2
• Filed: 10/24/2007
• Issued: 05/10/2011
• Est. Priority Date: 12/09/2006
• Status: Active Grant

• Current Assignee: Dragerwerk AG & Company KGaA (FPS Vermögensverwaltung GmbH)
• Original Assignee: Drager Medical GmbH (FPS Vermögensverwaltung GmbH)
• Inventors: Maxeiner, Thomas, Peter, Gerd
• Primary Examiner(s): Bugg; George A
• Assistant Examiner(s): SMALL, NAOMI J
• Application Number:
  US11/877,799
• Publication Number:
  US 20080173306A1
• Time in Patent Office: 1,294 Days
• Field of Search: 340/540
• US Class Current: 340/540
• CPC Class Codes: A61B 5/08 Detecting, measuring or recording devices for evaluating the respiratory organs A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/082 Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath A61B5/083, A61B5/091 take precedence
• CPC Class Codes: A61M 15/0083 Timers
• CPC Class Codes: A61M 16/00 Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes stimulating the respiratory movement by mechanical, pneumatic or electrical means, iron lungs combined with gas breathing means A61H31/00
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/024 including calculation means, e.g. using a processor
• CPC Class Codes: A61M 16/0808 Condensation traps
• CPC Class Codes: A61M 16/085 Gas sampling
• CPC Class Codes: A61M 2205/126 with incorporated membrane filters
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/276 preventing unwanted use
• CPC Class Codes: A61M 2205/3389 Continuous level detection A61M2205/3393 takes precedence
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/6018 providing set-up signals for the apparatus configuration
• CPC Class Codes: A61M 2205/6054 : Magnetic identification systems
• CPC Class Codes: A61M 2230/43 : Composition of exhalation
• CPC Class Codes: G01N 2001/2244 : Exhaled gas, e.g. alcohol detecting
• CPC Class Codes: G01N 2001/2267 : separating gas from liquid, e.g. bubbles
• CPC Class Codes: G01N 33/006 : Avoiding interference of water vapour with the gas to be measured
• CPC Class Codes: G01N 33/497 : of gaseous biological material, e.g. breath

Abstract

A device with a water trap. The device has a gas sensor and is designed to send a gas sample flow through the water trap (2) and to feed it to the gas sensor (3). The water trap (2) is designed to be separably connected to the device. The device has a mount for connection to the water trap. The water trap (2) has a radio frequency marking (5). The device has a radio frequency detection device (6) with a detection area (7) for the radio frequency marking, which is designed to detect the radio frequency marking in the detection area and to generate a marking signal, which represents marking information of the radio frequency marking. The device is designed to be controlled as a function of the marking signal.

Claims

1. A device comprising:

a conduit carrying a sample gas flow;

a gas sensor;

a water trap mount;

a water trap detachably connected to said water trap mount, said water trap being connected to said conduit and to said gas sensor via said water trap mount, the sample gas flow being directed through said water trap to feed said sample gas flow to said gas sensor, said water trap being separably connected via said water trap mount for connection to and removal from the device;

a radio frequency marking associated with said water trap;

a data memory;

a radio frequency detection device with a detection area for detecting said radio frequency marking, wherein said radio frequency detection device detects said radio frequency marking in said detection area with said water trap connected to said water trap mount and said radio frequency detection device generates a marking signal with said water trap connected to said water trap mount in an initial connected state, said marking signal representing marking information and a connected state of said water trap mount and said water trap; and

a control unit controlling the device as a function of the marking signal, said control unit generating an initial time period corresponding to a duration of time during which said water trap is initially connected to the device as a function of detection of said marking signal, said control unit providing said initial time period as output to at least one of said radio frequency marking and said data memory, wherein said water trap is disconnected from said device in a disconnected state, said water trap being reconnected to said device in a reconnected state, said marking signal being generated via said radio frequency detection device with said water trap reconnected to said device in said reconnected state, said control unit comparing said initial time period in one of said data memory and said radio frequency marking with a predetermined run time period with said water trap and said device in said reconnected state, said control unit generating an additional time period corresponding to the duration of time during which said water trap is reconnected to the device as a function of detection of the marking signal, said additional time period comprising said initial time period, wherein said water trap does not operate with said additional time period being substantially equal to said predetermined time period.

2. A device in accordance with claim 1, further comprising a respiration device, said unit comprising:

a time counter operatively connected to said radio frequency detection device, said time counter generating said time period corresponding to the duration of time during which said water trap is connected to the device as a function of detection of the marking signal;

a comparison means for comparing said time period to said predetermined run time period and generating a comparison result; and

run signal means for generating, as a function of the comparison result, a run signal, said run signal representing a time course of the predetermined run time period, the respiration device being controlled as a function of the run signal.

3. A device in accordance with claim 1, wherein the control unit controlling the device includes blocking or releasing the device at least partially as a function of the marking signal.

4. A device in accordance with claim 2, wherein the run time period is represented by the marking information.

5. A device in accordance with claim 1, wherein the marking information of the radio frequency marking represents a code, which is assigned to said water trap.

6. A device in accordance with claim 1, wherein said water trap has a container for a liquid and said radio frequency marking is arranged within the container and can be subject to buoyancy in said liquid.

7. A device in accordance with claim 1, wherein said radio frequency marking receives marking information and stores the marking information in a readable form, said radio frequency detection device sending marking information to said radio frequency marking for storing marking information at the radio frequency marking.

16. A device in accordance with claim 2, wherein said run signal is not generated with said water trap disconnected from said device or with said time period being substantially equal to said predetermined time period.

17. A device in accordance with claim 2, further comprising an alarm means for generating an alarm when said sum of said additional time period and said time period is substantially equal to said predetermined time period.

18. A device in accordance with claim 17, wherein said water trap is connected to said water trap mount via a plug type connection.

8. A process for a device having a separably connected water trap, the process comprising the steps of:

providing a data memory;

detachably connecting the water trap to the device to define a connected state;

providing the water trap with a radio frequency marking;

detecting the radio frequency marking of the water trap and detecting marking information representing the radio frequency marking;

generating a marking signal representing the marking information and a connected state of said water trap with said device;

starting a time counter for incrementing a time value as a function of the marking signal with said device and said water trap in said connected state, wherein said time value corresponds to a time period of use of said water trap;

generating a run signal depending on whether a predetermined time value has been reached with said device and said water trap in said connected state;

controlling the device as a function of the run signal with said device and said water trap in said connected state;

stopping said time counter when said water trap is disconnected from said device or said time value is substantially equal to said predetermined time value; and

storing said time value with said marking information in at least one of said data memory and said radio frequency marking after said time counter is stopped.

9. A process in accordance with claim 8, wherein:

the device comprises a respiration device; and

said step of controlling includes at least partially blocking or releasing the respiration device as a function of the run signal.

10. A process in accordance with claim 8, wherein said step of controlling includes stopping or restarting of said time counter as a function of the marking signal.

11. A process in accordance with claim 10, further comprising:

sending the time value to the radio frequency marking; and

storing of the time value in the radio frequency marking after said time counter has been stopped.

12. A process in accordance with claim 9, further comprising:

providing the respiration device with a conduit carrying a sample gas flow, a gas sensor;

a water trap mount with the water trap connected to the respiration device via the water trap mount and with the water trap connected to the conduit and to the gas sensor;

directing the sample gas flow through the water trap to feed same to the gas sensor;

providing the respiration device with a radio frequency detection device with a detection area for detecting the radio frequency marking, wherein said step of detecting includes detecting the radio frequency marking in the detection area with the radio frequency detection device; and

generating a marking signal, which represents marking information.

13. A process in accordance with claim 9, further comprising:

disconnecting said water trap from said device to define a disconnected state;

reconnecting said water trap to said device to define a reconnected state;

detecting the radio frequency marking of the water trap and detecting marking information representing the radio frequency marking with said water trap and said device in said reconnected state;

comparing said time value with said predetermined time value;

incrementing said time counter from said time period with said water trap and said device in said reconnected state when said time value is less than said predetermined time value to define a continued time value;

stopping said time counter when said continued time value is substantially equal to said predetermined time value; and

disconnecting said water trap from said device when said continued time value is substantially equal to said predetermined time value.

14. A process in accordance with claim 13, wherein said marking signal is not generated when said water trap is disconnected from said device.

15. A device in accordance with claim 14, further comprising:

generating an alarm means when said continued time value is substantially equal to said predetermined time period.

19. A process in accordance with claim 13, wherein said water trap is connected to said device via a plug type connection.