US5025798A
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US
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Methods and apparatus for directly sensing and measuring blood related parameters
Assignee: MEDICAL SYSTEMS DEVELOPMENT LLC
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Filing: 1990-07-30
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Granted: 1991-06-25
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Expires: 2010-07-30
Abstract
Abstract A disposable cartridge, included in a blood sample analysis system, is described wherein the cartridge itself contains means for both sensing and measuring preselected blood related parameters. The blood sample being analyzed is directly placed in contact with sensing means in the cartridge without intervening buffer solutions, exposure to air, etc. The unadulterated sample is analyzed within the cartridge and the measurement output therefrom is communicated to means outside the cartridge where it can be displayed, be analyzed further, be transmitted to a remote location, etc. The cartridge and its contents do not require on site calibration or a warm up period. This feature allows the system to be used by personnel not necessarily trained in calibrating sophisticated electronic equipment and facilitates rapid data output, particularly vital in critical care and emergency treatment situations.
Inventors
- 👤 Gary M. Schindele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:50
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/157; A61B5/145; A61B5/14539; A61B5/14542; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150351; A61B5/153; A61B5/154; A61B5/150206; A61B5/150221; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150473; A61B5/150732
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
110 words
A method for directly sensing and measuring blood related parameters in a non-reusable disposable container, the method comprising the steps of: (a) introducing an unadulterated blood sample into non-reuseable disposable encapsulating means for performing both the sensing and measuring of a preselected blood related parameter; (b) directing said blood sample to means within said encapsulating means for performing both the sensing and measuring of said preselected blood related parameter, wherein said step of directing is performed utilizing a capillary tube located within said encapsulating means; (c) sensing and measuring said preselected parameter entirely within said encapsulating means; and (d) outputting, from said encapsulating means, the measured value of said parameter.
Claim 2
Independent Claim
110 words
A method for directly sensing and measuring blood related parameters in a non-reusable disposable container, the method comprising the steps of: (a) introducing an unadulterated blood sample into non-reuseable disposable encapsulating means for performing both the sensing and measuring of a preselected blood related parameter; (b) directing said blood sample to means within said encapsulating means for performing both the sensing and measuring of said preselected blood related parameter, wherein said step of directing is performed utilizing a capillary tube located within said encapsulating means; (c) sensing and measuring said preselected parameter entirely within said encapsulating means; and (d) outputting, from said encapsulating means, the measured value of said parameter.
Claim 3
Independent Claim
122 words
A method for directly sensing and measuring blood related parameters in a non-reusable disposable container, the method comprising the steps of: (a) introducing an unadulterated blood sample into non-reusable disposable encapsulating means for performing both the sensing and measuring of a preselected blood related parameter, wherein said step of introducing further comprises the step of creating a partial vacuum within said encapsulating means to prevent contamination of said blood sample by airborne contaminants; (b) directing said blood sample to means within said encapsulating means for performing both the sensing and measuring of said preselected blood related parameter; (c) sensing and measuring said preselected parameter entirely within said encapsulating means; and (d) outputting, from said encapsulating means, the measured value of said parameter.
Claim 4
Independent Claim
122 words
A method for directly sensing and measuring blood related parameters in a non-reusable disposable container, the method comprising the steps of: (a) introducing an unadulterated blood sample into non-reusable disposable encapsulating means for performing both the sensing and measuring of a preselected blood related parameter, wherein said step of introducing further comprises the step of creating a partial vacuum within said encapsulating means to prevent contamination of said blood sample by airborne contaminants; (b) directing said blood sample to means within said encapsulating means for performing both the sensing and measuring of said preselected blood related parameter; (c) sensing and measuring said preselected parameter entirely within said encapsulating means; and (d) outputting, from said encapsulating means, the measured value of said parameter.
Claim 5
Independent Claim
146 words
A method for directly sensing and measuring blood related parameters in a non-reusable disposable container, the method comprising the steps of: (a) introducing an unadulterated blood sample into non-reusable disposable encapsulating means for performing both the sensing and measuring of a preselected blood related parameter, wherein said step of introducing further comprises the steps of (a1) inserting said encapsulating means within a blood drawing device; (a2) drawing a blood sample directly from a patient via said blood drawing device; and (a3) directly introducing said drawn sample into said encapsulating means as the blood sample is being drawn; (b) directing said blood sample to means within said encapsulating means for performing both the sensing and measuring of said preselected blood related parameter; (c) sensing and measuring said preselected parameter entirely within said encapsulating means; and (d) outputting, from said encapsulating means, the measured value of said parameter.
Claim 6
Independent Claim
146 words
A method for directly sensing and measuring blood related parameters in a non-reusable disposable container, the method comprising the steps of: (a) introducing an unadulterated blood sample into non-reusable disposable encapsulating means for performing both the sensing and measuring of a preselected blood related parameter, wherein said step of introducing further comprises the steps of (a1) inserting said encapsulating means within a blood drawing device; (a2) drawing a blood sample directly from a patient via said blood drawing device; and (a3) directly introducing said drawn sample into said encapsulating means as the blood sample is being drawn; (b) directing said blood sample to means within said encapsulating means for performing both the sensing and measuring of said preselected blood related parameter; (c) sensing and measuring said preselected parameter entirely within said encapsulating means; and (d) outputting, from said encapsulating means, the measured value of said parameter.
Claim 7
Dependent Claim
52 words
Apparatus for directly sensing and measuring blood related parameters, comprising encapsulating means including means for performing both the sensing and measuring of a preselected blood related parameter entirely within said encapsulating means, wherein said means for performing is calibrated prior to encapsulation thereby eliminating the need for calibration at time of use.
Claim 8
Dependent Claim
52 words
Apparatus for directly sensing and measuring blood related parameters, comprising encapsulating means including means for performing both the sensing and measuring of a preselected blood related parameter entirely within said encapsulating means, wherein said means for performing is calibrated prior to encapsulation thereby eliminating the need for calibration at time of use.
Claim 9
Dependent Claim
119 words
Apparatus for directly sensing and measuring blood related parameters, comprising: (a) encapsulating means including means for performing both the sensing and measuring of a preselected blood related parameter entirely within said encapsulating means; (b) means for sealing said encapsulating means which permits the introduction of an unadulterated blood sample into said encapsulating means; (c) means for assuring that a blood sample introduced into said encapsulating means remains unadulterated and is placed in proximity to said means for performing both the sensing and measuring of said preselected blood related parameter to thereby permit direct analysis of said unadulterated blood sample; and (d) means, coupled to said means for sensing and measuring, for outputting the measured value of said preselected parameter.
Claim 10
Dependent Claim
119 words
Apparatus for directly sensing and measuring blood related parameters, comprising: (a) encapsulating means including means for performing both the sensing and measuring of a preselected blood related parameter entirely within said encapsulating means; (b) means for sealing said encapsulating means which permits the introduction of an unadulterated blood sample into said encapsulating means; (c) means for assuring that a blood sample introduced into said encapsulating means remains unadulterated and is placed in proximity to said means for performing both the sensing and measuring of said preselected blood related parameter to thereby permit direct analysis of said unadulterated blood sample; and (d) means, coupled to said means for sensing and measuring, for outputting the measured value of said preselected parameter.
Claim 11
Dependent Claim
34 words
Apparatus as set forth in claim 5 further comprising means for communicating a signal indicative of the measured value of said parameter between said means for outputting and the outside of said encapsulating means.
Claim 12
Dependent Claim
34 words
Apparatus as set forth in claim 5 wherein said means for sealing comprises stopper means including a puncturable portion which may be used to permit the introduction of said blood sample via a needle.
Claim 13
Dependent Claim
68 words
Apparatus as set forth in claim 7 wherein said means for assuring comprises a capillary tube, located in an evacuated portion of said encapsulating means, coupled between the puncturable portion of said seal and said means for sensing and measuring, to thereby permit blood injected into said encapsulating means, through the puncturable portion of said seal, to flow via capillary action to said means for sensing and measuring.
Claim 14
Dependent Claim
31 words
Apparatus as set forth in claim 6 wherein said means for outputting comprises at least one lead wire coupled between said means for sensing and measuring and said means for communicating.
Claim 15
Dependent Claim
18 words
Apparatus as set forth in claim 9 wherein said means for communicating comprises at least one contact pin.
Claim 16
Independent Claim
255 words
A system for obtaining an unadulterated blood sample, analyzing said sample to sense and measure a preselected parameter associated therewith, and output a signal indicative of the measured value of said parameter, comprising: (a) encapsulating means including means for performing both the sensing and measuring of said parameter entirely within said encapsulating means; (b) means for sealing said encapsulating means, which permits the introduction of an unadulterated blood sample into said encapsulating means through a puncturable portion of said means for sealing; (c) means for introducing an unadulterated blood sample into said encapsulating means; (d) means for sensing the blood sample introduced into said encapsulating means is conveyed, in unadulterated form, to said means for sensing and measuring so that direct analysis of said sample may be performed, wherein said means for assuring further comprises a capillary tube, located in an evacuated portion of said encapsulating means, coupled between the puncturable portion of said seal and said means for sensing and measuring, to thereby permit blood injected into said encapsulating means, through the puncturable portion of said seal, to flow via capillary action to said means for sensing and measuring; (e) output means, coupled to said means for sensing and measuring, for outputting a signal indicative of the measure of said parameter; (f) means, coupled between said output means and the outside of said encapsulating means, for communicating said output signal to display means; and (g) display means for displaying the value of said measured parameter as a function of the value of said signal.
Claim 17
Independent Claim
255 words
A system for obtaining an unadulterated blood sample, analyzing said sample to sense and measure a preselected parameter associated therewith, and output a signal indicative of the measured value of said parameter, comprising: (a) encapsulating means including means for performing both the sensing and measuring of said parameter entirely within said encapsulating means; (b) means for sealing said encapsulating means, which permits the introduction of an unadulterated blood sample into said encapsulating means through a puncturable portion of said means for sealing; (c) means for introducing an unadulterated blood sample into said encapsulating means; (d) means for sensing the blood sample introduced into said encapsulating means is conveyed, in unadulterated form, to said means for sensing and measuring so that direct analysis of said sample may be performed, wherein said means for assuring further comprises a capillary tube, located in an evacuated portion of said encapsulating means, coupled between the puncturable portion of said seal and said means for sensing and measuring, to thereby permit blood injected into said encapsulating means, through the puncturable portion of said seal, to flow via capillary action to said means for sensing and measuring; (e) output means, coupled to said means for sensing and measuring, for outputting a signal indicative of the measure of said parameter; (f) means, coupled between said output means and the outside of said encapsulating means, for communicating said output signal to display means; and (g) display means for displaying the value of said measured parameter as a function of the value of said signal.
References Cited (Backward Citations)
US3512517A
Cited
US3661010A
Cited
US3920396A
Cited
US4040908A
Cited
US4339317A
Cited
US4272245A
Cited
US4478222A
Cited
US4468703A
Cited
US4535786A
Cited
US4791938A
Cited
US4852584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-06-24 | 1994-12-24 | 1995-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-24 | 1998-12-24 | 1999-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-24 | 2002-12-24 | 2003-06-25 | $7700.00 | Window Closed / Lapsed |