US20050177096A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patient-controlled analgesia with patient monitoring system and method
Assignee: CareFusion 303 Inc
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Filing: 2004-12-06
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Granted: —
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Expires: 2024-12-06
Abstract
Abstract A patient care system in which a physiological parameter of a patient is monitored while the patient self-administers analgesic. A display presents a trend of the patient's physiological parameter along with the time of self-administration of the analgesic (“PCA”—patient controlled analgesic) such that the effect of the analgesic on the physiological parameter can be seen over selectable time periods. The physiological parameter may be ETCO 2 or SpO 2 or other. Also included is a drug library having acceptable pumping parameters as well as other PCA specific data. Should the operator program a pumping parameter that is outside an acceptable range, or should the patient attempt to self-administer more analgesic than the acceptable range permits, or should a patient's physiological parameter change during infusion such that a pumping parameter becomes outside an acceptable range, an indication of such will be given and action, such as stopping the pump, will be taken.
Inventors
- 👤 Stephen Bollish
- 👤 Sandra Brook
- 👤 Thomas Steinhauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:17
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/0205; A61B5/02055; A61B5/03; A61B5/032; A61B5/41; A61B5/411; A61B5/48; A61B5/4821; A61M; A61M5/00; A61M5/14; A61M5/168; A61M5/172; A61M5/1723; G; G16; G16H; G16H20/00; G16H20/10; G16H20/17; A61B5/08; A61B5/0816; A61B5/145; A61B5/1455; A61B5/72; A61B5/7271; A61B5/7275; A61M2005/1401; A61M2005/1405; A61M2202/00; A61M2202/04; A61M2202/0468; A61M2202/048; A61M2205/00; A61M2205/35; A61M2205/3576; A61M2205/50; A61M2205/52; A61M2205/60; A61M2205/6063; A61M2205/6072; A61M2230/00; A61M2230/20; A61M2230/40; A61M2230/43; A61M2230/432; A61M5/142
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
96 words
1 . A patient care system, comprising: a medication delivery device configured to deliver medication to a patient; a patient request device with which a patient provides a request signal for delivery of medication; a physiological monitor disposed to measure a physiological parameter of the patient and provide a physiological signal indicating a value of the measured physiological parameter; and a controller that receives the request signal and the physiological signal and controls the operation of the medication delivery device to deliver medication to the patient in accordance with the request signal and the physiological signal.
Claim 2
Dependent Claim
96 words
1 . A patient care system, comprising: a medication delivery device configured to deliver medication to a patient; a patient request device with which a patient provides a request signal for delivery of medication; a physiological monitor disposed to measure a physiological parameter of the patient and provide a physiological signal indicating a value of the measured physiological parameter; and a controller that receives the request signal and the physiological signal and controls the operation of the medication delivery device to deliver medication to the patient in accordance with the request signal and the physiological signal.
Claim 3
Dependent Claim
39 words
2 . The patient care system of claim 1 further comprising a display on which the controller presents a trend of the values of the measured physiological parameter with an indication of the point of delivery of the medication.
Claim 4
Dependent Claim
41 words
3 . The patient care system of claim 2 wherein the trend comprises a display in graphical form of the values of the measured physiological parameter over a time period with the point of delivery of medication shown on the trend.
Claim 5
Dependent Claim
41 words
4 . The patient care system of claim 2 wherein the trend comprises a display in tabular form of the values of the measured physiological parameter over a time period with the point of delivery of medication shown on the trend.
Claim 6
Dependent Claim
21 words
5 . The patient care system of claim 2 wherein the time period over which the trend is displayed is selectable.
Claim 7
Dependent Claim
42 words
6 . The patient care system of claim 1 wherein: the physiological monitor measures ETCO 2 of the patient and provides an ETCO 2 signal; and the controller controls the delivery of medication to the patient based on the ETCO 2 signal.
Claim 8
Dependent Claim
42 words
7 . The patient care system of claim 1 wherein: the physiological monitor measures SpO 2 of the patient and provides an SpO 2 signal; and the controller controls the delivery of medication to the patient based on the SpO 2 signal.
Claim 9
Dependent Claim
49 words
8 . The patient care system of claim 7 wherein: the physiological monitor measures ETCO 2 of the patient and provides an ETCO 2 signal; and the controller controls the delivery of medication to the patient based on both the SpO 2 signal and on the ETCO 2 signal.
Claim 10
Dependent Claim
18 words
9 . The patient care system of claim 6 wherein a waveform of the measured ETCO2 is displayed.
Claim 11
Dependent Claim
19 words
10 . The patient care system of claim 7 wherein a waveform of the measured SpO 2 is displayed.
Claim 12
Dependent Claim
60 words
11 . The patient care system of claim 1 wherein in response to the physiological signal the controller controls the operation of the delivery device in accordance with actions consisting of: stop medication delivery; pause medication delivery; disable response to the request signal; establish a time period within which response to the request signal is disabled; and restart medication delivery.
Claim 13
Dependent Claim
68 words
12 . The patient care system of claim 1 wherein: the medication delivery device comprises a PCA pump controlled by a patient request to deliver a bolus of medication; the controller presents on a display a series of values of the monitored physiological parameter over time in graphical form and on the same graphical display, presents the point at which occurred the PCA request signal from the patient.
Claim 14
Dependent Claim
52 words
13 . The patient care system of claim 12 further comprising a drug library in which is stored data related to analgesic delivery parameters and patient physiological parameters; wherein the controller is programmed to compare the medication delivery request signal and the physiological signal to the stored data of the drug library.
Claim 15
Dependent Claim
30 words
14 . The patient care system of claim 6 wherein the controller responds to an ETCO 2 measured value to control the pump to titrate a drug to the patient.
Claim 16
Dependent Claim
29 words
15 . The patient care system of claim 6 wherein the controller responds to an ETCO 2 measured value to control the pump to administer a drug reversal agent.
Claim 17
Dependent Claim
22 words
16 . The patient care system of claim 6 wherein the controller sends an alert based on an ETCO 2 measured value.
Claim 18
Dependent Claim
39 words
17 . The patient care system of claim 14 further comprising a memory in which the controller stores: measured physiological parameter values; and request signals; wherein the controller forwards the stored signals from memory to another location for analysis.
Claim 19
Dependent Claim
53 words
18 . The patient care system of claim 1 further comprising a drug library in which ranges of acceptable values for delivery of medication are stored, the controller comparing pumping delivery parameters programmed into the medication delivery device to the drug library and if outside a range of acceptable values, providing an alert.
Claim 20
Dependent Claim
98 words
19 . The patient care system of claim 18 wherein: the drug library includes a soft range of acceptable values, wherein the controller will provide an alert if a programmed parameter of the medication delivery device is outside the soft range however will permit medication delivery to commence is requested; the drug library includes a hard range of acceptable values, wherein the controller will provide an alert if a programmed parameter of the medication delivery device is outside the hard range and will not permit medication delivery to commence and will require reprogramming of the alerted delivery parameter.
Claim 21
Dependent Claim
37 words
20 . The patient care system of claim 17 wherein the controller accesses a data source for patient-specific information and compares it to drug library, provides alert if this patient combined with this drug are outside ranges.
Claim 22
Dependent Claim
22 words
21 . The patient care system of claim 17 wherein the data set is configurable by an operator of an editor program.
Claim 23
Dependent Claim
65 words
22 . A method for patient-controlled self administration of analgesic, comprising: receiving a request signal from a patient-controlled device for the delivery of analgesic to the patient; receiving physiological parameter data from a monitor disposed to measure a physiological parameter of the patient; and controlling the self administration of the analgesic to the patient in accordance with the request signal and the physiological parameter data.
Claim 24
Dependent Claim
65 words
22 . A method for patient-controlled self administration of analgesic, comprising: receiving a request signal from a patient-controlled device for the delivery of analgesic to the patient; receiving physiological parameter data from a monitor disposed to measure a physiological parameter of the patient; and controlling the self administration of the analgesic to the patient in accordance with the request signal and the physiological parameter data.
Claim 25
Dependent Claim
31 words
23 . The method of claim 22 further comprising displaying a trend of the values of the measured physiological parameter with an indication of the point of delivery of the medication.
Claim 26
Dependent Claim
39 words
24 . The method of claim 23 wherein the step of displaying comprise displaying in graphical form the values of the measured physiological parameter over a time period with the point of delivery of medication shown on the trend.
Claim 27
Dependent Claim
39 words
25 . The method of claim 23 wherein the step of displaying comprise displaying in tabular form the values of the measured physiological parameter over a time period with the point of delivery of medication shown on the trend.
Claim 28
Dependent Claim
26 words
26 . The method of claim 23 wherein the step of displaying comprises the step of selecting the time period over which the trend is displayed.
Claim 29
Dependent Claim
36 words
27 . The method of claim 22 further comprising: measuring ETCO 2 of the patient and providing an ETCO 2 signal; and controlling the delivery of medication to the patient based on the ETCO 2 signal.
Claim 30
Dependent Claim
36 words
28 . The method of claim 22 further comprising: measuring SpO 2 of the patient and providing an SpO 2 signal; and controlling the delivery of medication to the patient based on the SpO 2 signal.
Claim 31
Dependent Claim
42 words
29 . The method of claim 28 further comprising: measuring ETCO 2 of the patient and providing an ETCO 2 signal; and controlling the delivery of medication to the patient based on both the ETCO 2 signal and the SpO 2 signal.
Claim 32
Dependent Claim
59 words
30 . The method of claim 22 wherein in response to the physiological signal the step of controlling the medication delivery comprises controlling in accordance with the actions consisting of: stop medication delivery; pause medication delivery; disable response to the request signal; establish a time period within which response to the request signal is disabled; and restart medication delivery.
Claim 33
Dependent Claim
51 words
31 . The method of claim 22 further comprising comparing parameters programmed into the medication delivery device with a drug library in which is stored data related to analgesic delivery parameters and patient physiological parameters; and controlling the delivery of medication in accordance with the programmed parameters and the drug library.
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