Patent US4825874A successfully refreshed from Google Patents.
US4825874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac diagnosis instrument
Assignee: Individual
•
Filing: 1987-09-22
•
Granted: 1989-05-02
•
Expires: 2007-09-22
Abstract
Abstract According to the present invention there is provided a cardiac diagnosis instrument including an elongated housing, diagnosis electronics accommodated within the housing and two pick-up electrodes mounted on one long side of the housing close to the front and rear ends of the instrument and electrically connected to the diagnosis electronics, a voltage source within the housing, a flat thin graphic display unit which extends along one side for a substantial part of the length of the housing on the opposite side to that on which the pick-up electrodes are located, an on-off switch, said graphic display unit and said on-off switch being electrically connected to the diagnosis electronics, said diagnosis electronics including evaluation electronics and actuation electronics for the graphic display unit, said housing having a tubular shape somewhat like that of a fountain pen, and by placing the housing on a region of the body of a patient, the pick-up electrodes may be pressed into contact with the skin of the patient and thus the frequency of the heart beat, an electrocardiogram (ECG), the QRS complex of an ECG, an electroencephalogram (EEG) or the like may be investigated through the medium of the pick-up electrodes. Preferably one of the pick-up electrodes is in the form of a holding clip starting from one end of the housing.
Inventors
- 👤 Hans J. Uhlemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:03
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/339; A61B5/02; A61B5/024; A61B5/02438; A61B5/332
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
205 words
Cardiac diagnosis instrument including an elongated housing, diagnosis electronics accommodated within the housing and two pick-up electrodes mounted on one long side of the housing close to the front and rear ends of the instrument and electrically connected to the diagnosis electronics, a voltage source within the housing, a flat thin graphic display unit which extends along one side for a substantial part of the length of the housing on the opposite side so that on which the pick-up electrodes are located, on on-off switch, said graphic display unit and said on-off switch being electrically connected to the diagnosis electronics, said diagnosis electronics including evaluation electronics and actuation electronics for the graphic display unit, said housing having a tubular shape somewhat like that of a fountain pen, and by placing the housing on a region of the body of a patient, the pick-up electrodes may be pressed into contact with the skin of the patient and thus the frequency of the heart beat, an electrocardiogram (ECG), and the QRS complex of an ECG may be investigated through the medium of the pick-up electrodes, and wherein one of the pick-up electrodes is in the form of a holding clip starting from one end of the housing.
Claim 2
Dependent Claim
205 words
Cardiac diagnosis instrument including an elongated housing, diagnosis electronics accommodated within the housing and two pick-up electrodes mounted on one long side of the housing close to the front and rear ends of the instrument and electrically connected to the diagnosis electronics, a voltage source within the housing, a flat thin graphic display unit which extends along one side for a substantial part of the length of the housing on the opposite side so that on which the pick-up electrodes are located, on on-off switch, said graphic display unit and said on-off switch being electrically connected to the diagnosis electronics, said diagnosis electronics including evaluation electronics and actuation electronics for the graphic display unit, said housing having a tubular shape somewhat like that of a fountain pen, and by placing the housing on a region of the body of a patient, the pick-up electrodes may be pressed into contact with the skin of the patient and thus the frequency of the heart beat, an electrocardiogram (ECG), and the QRS complex of an ECG may be investigated through the medium of the pick-up electrodes, and wherein one of the pick-up electrodes is in the form of a holding clip starting from one end of the housing.
Claim 3
Dependent Claim
36 words
Cardiac diagnosis instrument in accordance with claim 1, wherein the housing has a length from 100 up to 160 mm, preferably 130 mm, and a diameter--or maximum diameter--from 10 up to 40 mm, preferably 16 mm.
Claim 4
Dependent Claim
28 words
Cardiac diagnosis instrument in accordance with claim 1, wherein the resolution of the graphic display unit is adjusted automatically depending upon the maximum amplitude of the heart action.
Claim 5
Dependent Claim
31 words
Cardiac diagnosis instrument in accordance with claim 3, wherein there is a reference display, preferably a 1.0 mV-Block, corresponding to a selected or given resolution, provided in the graphic display unit.
Claim 6
Dependent Claim
57 words
Cardiac diagnosis instrument in accordance with claim 1, wherein an ECG displayed on the graphic display unit may be selectively retained (freezing of the display), wherein the freezing of the display is effected automatically at the actual time when the pick-up electrodes are removed from contact with the skin of a patient after completion of an observation.
Claim 7
Dependent Claim
32 words
Cardiac diagnosis instrument in accordance with claim 5, wherein the replacement of the pick-up electrodes on the skin causes erasure of the retained ECG and initiates the continuation of the observation procedure.
Claim 8
Dependent Claim
63 words
Cardiac diagnosis instrument in accordance with claim 6, wherein the path resistance between the pick-up electrodes serves as the criterion for initiation of the procedure so that, in particular, the ECG will be actively displayed at a path resistance of less than 3 kiloohms and the ECG display will be frozen on the screen when the path resistance is greater than 3 kiloohms.
Claim 9
Dependent Claim
63 words
Cardiac diagnosis instrument in accordance with claim 7, wherein the path resistance between the pick-up electrodes serves as the criterion for initiation of the procedure so that, in particular, the ECG will be actively displayed at a path resistance of less than 3 kiloohms and the ECG display will be frozen on the screen when the path resistance is greater than 3 kiloohms.
Claim 10
Dependent Claim
35 words
Cardiac diagnosis instrument in accordance with claim 1, wherein the on-off switch and any other desired switches are implemented as a sliding switch which is arranged or attached in the longitudinal direction of the housing.
Claim 11
Dependent Claim
20 words
Cardiac diagnosis instrument in accordance with claim 1, wherein an examination pen-light is provided at one end of the housing.
Claim 12
Dependent Claim
163 words
Cardiac diagnosis instrument including an elongated housing diagnosis electronics accommodated within the housing and two pick-up electrodes mounted on the housing close to the front and rear ends of the instrument and electrically connected to the diagnosis electronics, a voltage source within the housing, a flat thin graphic display unit which extends along one side of the housing, an on-off switch, said graphic display unit and said on-off switch being electrically connected to the diagnosis electronics, said diagnosis electronics including evaluation electronics and actuation electronics for the graphic display unit, said housing having a tubular shape somewhat like that of a fountain pen, and by placing the housing on a region of the body of a patient, the pick-up electrodes may be pressed into contact with the skin of the patient for enabling electrically monitorable physical conditions of the patient to be investigated through the medium of the pick-up electrodes, and wherein an examination pen-light is provided at one end of the housing.
Claim 13
Dependent Claim
163 words
Cardiac diagnosis instrument including an elongated housing diagnosis electronics accommodated within the housing and two pick-up electrodes mounted on the housing close to the front and rear ends of the instrument and electrically connected to the diagnosis electronics, a voltage source within the housing, a flat thin graphic display unit which extends along one side of the housing, an on-off switch, said graphic display unit and said on-off switch being electrically connected to the diagnosis electronics, said diagnosis electronics including evaluation electronics and actuation electronics for the graphic display unit, said housing having a tubular shape somewhat like that of a fountain pen, and by placing the housing on a region of the body of a patient, the pick-up electrodes may be pressed into contact with the skin of the patient for enabling electrically monitorable physical conditions of the patient to be investigated through the medium of the pick-up electrodes, and wherein an examination pen-light is provided at one end of the housing.
References Cited (Backward Citations)
AT250557B
Cited
FR1571024A
Cited
US3858576A
Cited
DE2646866A1
Cited
DE2915912A1
Cited
DE2928588A1
Cited
EP0027974A1
Cited
JPS5667342A
Cited
US4350164A
Cited
JPS578418A
Cited
US4596256A
Cited
GB2142727A
Cited
DE3407775A1
Cited
DE3409094A1
Cited
EP0170448A2
Cited
US4606352A
Cited
EP0178990A1
Cited
EP0207678A1
Cited
GB2181554A
Cited
US4686998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |