US4576180A
Expired / Lapsed
US
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Method and apparatus for monitoring leg blood pressure of an ambulatory patient
Assignee: Individual
•
Filing: 1983-08-08
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Granted: 1986-03-18
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Expires: 2003-08-08
Abstract
Abstract A leg blood pressure monitor for an ambulatory patient during his normal daily activities including a catheter for insertion into a blood vessel, a pressure transducer for converting blood pressure to an electrical signal which is representative of the blood pressure, a voltage controlled oscillator for providing a frequency output which is proportional to the electrical signal, and a tape recorder for recording the frequency output and the attitude of the ambulatory patient along a time base. The tape recorder may include a microphone into which the patient dictates the attitude of various relevant parts of his body during pain episodes, or position transducers may be attached to the calf, thigh and side of the patient to produce outputs which show the attitudes of these parts of the body and which are recorded on the tape recorder with reference to the blood pressure readings. In addition, the tape recorder may include referencing mechanism to indicate on the tape the occurrences of pain episodes. A method of monitoring the blood pressure of an ambulatory patient during his normal daily activities by invasively measuring venous leg pressure in relation to the attitude of various parts of the patient's body and in relation to the occurrence of pain and discomfort.
Inventors
- 👤 Syde A. Taheri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:27
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/0215; A61B5/02152
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
122 words
A blood pressure monitor for monitoring the venous blood pressure in the leg of an ambulatory patient for a period of time which includes the normal daily activities of said patient to aid in the diagnosis of vascular disease of the leg comprising a catheter for insertion into a venous blood vessel in the leg, means coupled to said catheter for measuring blood pressure in said venous blood vessel, first means for recording said blood pressure, and second means associated with said first means for recording the attitude of at least one of the patient's leg, thigh and side with respect to said blood pressure in said venous blood vessel in the leg to thereby correlate said attitude with said blood pressure.
Claim 2
Dependent Claim
122 words
A blood pressure monitor for monitoring the venous blood pressure in the leg of an ambulatory patient for a period of time which includes the normal daily activities of said patient to aid in the diagnosis of vascular disease of the leg comprising a catheter for insertion into a venous blood vessel in the leg, means coupled to said catheter for measuring blood pressure in said venous blood vessel, first means for recording said blood pressure, and second means associated with said first means for recording the attitude of at least one of the patient's leg, thigh and side with respect to said blood pressure in said venous blood vessel in the leg to thereby correlate said attitude with said blood pressure.
Claim 3
Dependent Claim
76 words
A blood pressure monitor for an ambulatory patient as set forth in claim 1 wherein said means coupled to said catheter comprises a pressure transducer means for converting said blood pressure to an electrical signal which is representative of the blood pressure, means for providing a frequency output which is proportional to said electrical signal, and wherein said first means includes means for recording said frequency output to thereby provide a record of blood pressure output.
Claim 4
Dependent Claim
24 words
A blood pressure monitor for an ambulatory patient as set forth in claim 1 wherein said second means comprises a plurality of position transducers.
Claim 5
Dependent Claim
43 words
A blood pressure monitor for an ambulatory patient as set forth in claim 1 wherein said second means comprises a position transducer means for attachment to at least one of said patient's leg, thigh or side to provide intelligence as to said attitude.
Claim 6
Dependent Claim
31 words
A blood pressure monitor for an ambulatory patient as set forth in claim 4 wherein said second means includes a position transducer means for attachment to the calf of said patient.
Claim 7
Dependent Claim
32 words
A blood pressure monitor for an ambulatory patient as set forth in claim 5 wherein said second means includes a second position transducer means for attachment to the thigh of said patient.
Claim 8
Dependent Claim
33 words
A blood pressure monitor for an ambulatory patient as set forth in claim 6 wherein said second means includes means a third position transducer means for attachment to the side of said patient.
Claim 9
Dependent Claim
31 words
A blood pressure monitor for an ambulatory patient as set forth in claim 4 wherein said second means includes a position transducer means for attachment to the thigh of said patient.
Claim 10
Dependent Claim
32 words
A blood pressure monitor for an ambulatory patient as set forth in claim 8 wherein said second means includes a second position transducer means for attachment to the side of said patient.
Claim 11
Dependent Claim
31 words
A blood pressure monitor for an ambulatory patient as set forth in claim 4 wherein said second means includes a position transducer means for attachment to the side of said patient.
Claim 12
Dependent Claim
52 words
A blood pressure monitor for an ambulatory patient as set forth in claim 1 wherein said second means include means for recording the time of occurrence of pain episodes with reference to said record of blood pressure and the attitude of said at least one of said patient's, leg, thigh and side.
Claim 13
Dependent Claim
34 words
A blood pressure monitor as set forth in claim 1 wherein said second means comprises a tape recorder means for recording said attitude by describing it by voice during the occurrence of pain episodes.
Claim 14
Dependent Claim
34 words
A blood pressure monitor as set forth in claim 1 wherein said second means comprises a tape recorder, and tape recorder referencing means for indicating the time of occurrence of pain on said tape.
Claim 15
Independent Claim
95 words
A method of monitoring venous leg pressure of an ambulatory patient over a period of time which includes the normal daily activities of the patient to aid in the diagnosis of vascular disease of the leg comprising the steps of inserting a catheter into a vein in the patient's leg, measuring the venous pressure in said vein in said patient's leg, and monitoring the attitude of at least one of the patient's leg, thigh and side, and recording said attitude with respect to said venous pressure to thereby correlate said attitude with said venous pressure.
Claim 16
Independent Claim
95 words
A method of monitoring venous leg pressure of an ambulatory patient over a period of time which includes the normal daily activities of the patient to aid in the diagnosis of vascular disease of the leg comprising the steps of inserting a catheter into a vein in the patient's leg, measuring the venous pressure in said vein in said patient's leg, and monitoring the attitude of at least one of the patient's leg, thigh and side, and recording said attitude with respect to said venous pressure to thereby correlate said attitude with said venous pressure.
Claim 17
Dependent Claim
33 words
A method as set forth in claim 14 wherein said monitoring said at least one of said patient's leg, thigh and side includes the step of monitoring the attitude of said patient's thigh.
Claim 18
Dependent Claim
33 words
A method as set forth in claim 15 wherein said monitoring said at least one of said patient's leg, thigh and side includes the step of monitoring the attitude of said patient's side.
Claim 19
Dependent Claim
20 words
A method as set forth in claim 14 wherein said catheter is inserted into a vein proximate the patient's ankle.
Claim 20
Dependent Claim
33 words
A method as set forth in claim 17 wherein said monitoring said at least one of said patient's leg, thigh and side includes the step of monitoring the attitude of said patient's leg.
Claim 21
Dependent Claim
33 words
A method as set forth in claim 18 wherein said monitoring said at least one of said patient's leg, thigh and side includes the step of monitoring the attitude of said patient's thigh.
Claim 22
Dependent Claim
33 words
A method as set forth in claim 19 wherein said monitoring said at least one of said patient's leg, thigh and side includes the step of monitoring the attitude of said patient's side.
Claim 23
Dependent Claim
22 words
A method as set forth in claim 17 including the step of recording the occurrence of pain with respect to said attitude.
Claim 24
Dependent Claim
22 words
A method as set forth in claim 14 including the step of recording the occurrence of pain with respect to said attitude.
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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) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |