US5577499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood analyzer
Assignee: Individual
•
Filing: 1994-10-03
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Granted: 1996-11-26
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Expires: 2014-10-03
Abstract
Abstract A blood analyzer includes a display means that visually informs operating room personnel of the instantaneous condition of a patient's blood. Arterial or central venous tubing connects the analyzer to a blood vessel, either arterial, venous, or both, of the patient. In a first embodiment, a plurality of sensor means are positioned within a primary chamber of the analyzer. In a second embodiment, a secondary chamber in valved fluid communication with the primary chamber enables introduction of blood thereinto and a port is provided for entry of a syringe needle so that reactants may be introduced into the secondary chamber so that an additional test may be performed. In a third embodiment, the primary chamber is in valved fluid communication with a conventional pressure transducer.
Inventors
- 👤 Leonides Y. Teves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:51
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/1468; A61B5/14542; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150992
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
232 words
A device for analyzing blood, comprising: a chamber of hollow construction; said chamber adapted to hold a predetermined quantity of a patient's blood; a first sensor means disposed within said chamber; said first sensor means having a first end immersed within blood in said chamber when said predetermined quantity of said patient's blood is within said chamber; a display means exterior to said chamber; means electrically connecting an unimmersed second end of said first sensor means and said display means so that a signal generated by said first sensor means is delivered to said display means; a tubing means having a leading end adapted for fluid communication with a patient's blood vessel and a trailing end in fluid communication with said chamber; an open-closed valve means disposed in said tubing means for selectively controlling entry of blood into said chamber; said trailing end of said tubing means being in fluid communication with said chamber through an opening formed in a bottom wall of said chamber, said chamber filling with blood when said open-closed valve means is in an open configuration, said blood flowing into said chamber under an impulse provided by said patient's blood pressure; said display means displaying a numerical value representing a parameter of said patient's blood as measured by said first sensor means; whereby an operating team need not await results of laboratory blood tests during a surgical operation.
Claim 2
Independent Claim
232 words
A device for analyzing blood, comprising: a chamber of hollow construction; said chamber adapted to hold a predetermined quantity of a patient's blood; a first sensor means disposed within said chamber; said first sensor means having a first end immersed within blood in said chamber when said predetermined quantity of said patient's blood is within said chamber; a display means exterior to said chamber; means electrically connecting an unimmersed second end of said first sensor means and said display means so that a signal generated by said first sensor means is delivered to said display means; a tubing means having a leading end adapted for fluid communication with a patient's blood vessel and a trailing end in fluid communication with said chamber; an open-closed valve means disposed in said tubing means for selectively controlling entry of blood into said chamber; said trailing end of said tubing means being in fluid communication with said chamber through an opening formed in a bottom wall of said chamber, said chamber filling with blood when said open-closed valve means is in an open configuration, said blood flowing into said chamber under an impulse provided by said patient's blood pressure; said display means displaying a numerical value representing a parameter of said patient's blood as measured by said first sensor means; whereby an operating team need not await results of laboratory blood tests during a surgical operation.
Claim 3
Independent Claim
252 words
A device for analyzing blood, comprising: a chamber of hollow construction; said chamber adapted to hold a predetermined quantity of a patient's blood; a plurality of sensor means disposed within said chamber; each sensor means of said plurality of sensor means having a first end immersed within blood in said chamber when said predetermined quantity of said patient's blood is within said chamber; a display means exterior to said chamber; means electrically connecting an unimmersed second end of each sensor means of said plurality of sensor means and said display means so that signals generated by each sensor means of said plurality of sensor means is delivered to said display means; a tubing means having a leading end adapted for fluid communication with a patient's blood vessel and a trailing end in fluid communication with said chamber; an open-closed valve means disposed in said tubing means for selectively controlling entry of blood into said chamber; said trailing end of said tubing means being in fluid communication with said chamber through an opening formed in a bottom wall of said chamber, said chamber filling with blood when said open-closed valve means is in an open configuration, said blood flowing into said chamber under an impulse provided by said patient's blood pressure; said display means displaying a plurality of numerical values representing a plurality of parameters of said patient's blood as measured by said plurality of sensor means; whereby an operating team need not await results of laboratory blood tests during a surgical operation.
Claim 4
Independent Claim
252 words
A device for analyzing blood, comprising: a chamber of hollow construction; said chamber adapted to hold a predetermined quantity of a patient's blood; a plurality of sensor means disposed within said chamber; each sensor means of said plurality of sensor means having a first end immersed within blood in said chamber when said predetermined quantity of said patient's blood is within said chamber; a display means exterior to said chamber; means electrically connecting an unimmersed second end of each sensor means of said plurality of sensor means and said display means so that signals generated by each sensor means of said plurality of sensor means is delivered to said display means; a tubing means having a leading end adapted for fluid communication with a patient's blood vessel and a trailing end in fluid communication with said chamber; an open-closed valve means disposed in said tubing means for selectively controlling entry of blood into said chamber; said trailing end of said tubing means being in fluid communication with said chamber through an opening formed in a bottom wall of said chamber, said chamber filling with blood when said open-closed valve means is in an open configuration, said blood flowing into said chamber under an impulse provided by said patient's blood pressure; said display means displaying a plurality of numerical values representing a plurality of parameters of said patient's blood as measured by said plurality of sensor means; whereby an operating team need not await results of laboratory blood tests during a surgical operation.
Claim 5
Dependent Claim
15 words
The device of claim 2, wherein said plurality of sensor means includes a sodium sensor.
Claim 6
Dependent Claim
15 words
The device of claim 2, wherein said plurality of sensor means includes a potassium sensor.
Claim 7
Dependent Claim
16 words
The device of claim 2, wherein said plurality of sensor means includes a carbon dioxide sensor.
Claim 8
Dependent Claim
15 words
The device of claim 2, wherein said plurality of sensor means includes an oxygen sensor.
Claim 9
Dependent Claim
15 words
The device of claim 2, wherein said plurality of sensor means includes a pH sensor.
Claim 10
Dependent Claim
16 words
The device of claim 2, wherein said plurality of sensor means includes a blood sugar sensor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-11-26 | 2000-05-27 | 2000-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-26 | 2004-05-27 | 2004-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-26 | 2008-05-27 | 2008-11-26 | $7700.00 | Window Closed / Lapsed |