GB2014858A - Programmable demand heart pacer - Google Patents
Programmable demand heart pacerInfo
- Publication number
- GB2014858A GB2014858A GB7844840A GB7844840A GB2014858A GB 2014858 A GB2014858 A GB 2014858A GB 7844840 A GB7844840 A GB 7844840A GB 7844840 A GB7844840 A GB 7844840A GB 2014858 A GB2014858 A GB 2014858A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rate
- pacer
- bpm
- uninhibited
- width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/37211—Means for communicating with stimulators
- A61N1/37252—Details of algorithms or data aspects of communication system, e.g. handshaking, transmitting specific data or segmenting data
- A61N1/37254—Pacemaker or defibrillator security, e.g. to prevent or inhibit programming alterations by hackers or unauthorised individuals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/37211—Means for communicating with stimulators
Abstract
An implantable R-wave inhibited cardiac pacer has integrated digital logic circuits including programmable registers 12, 16 (210, 262, Fig. 4) to determine the pulse rate and width. A 5-3-4 code applied by an external pulsed electromagnet to a reed switch 20 (400, Fig. 5) unlocks a digital lock 18 so that rate register 12 can be reprogrammed to any value between 30 and 120 BPM. A 5-3-2 code allows the width register 16 to be reprogrammed, and the circuitry ensures that the programmed width can only lie between set limits. If a main timing circuit failure gives rise to a rate above 130 BPM, a protection circuit 32 feeds pulses to the heart 32 at half the rate from generator 28. A refractory circuit 42 prevents the generator being reset by a heart signal for 256 or 320 msec following a sensed natural beat or a pacing pulse respectively, noise sensing circuits operating from the last 64 mec of the refractory period and the pacer operating uninhibited, at its programmed rate in the presence of noise. Closure of switch 20 by a permanent magnet causes uninhibited operation at 100, 90 or 85 BPM depending on whether the battery is new, half-discharged or should be replaced, the pacer giving six uninhibited pulses at the programmed rate on removal of the magnet. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88089578A | 1978-02-24 | 1978-02-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2014858A true GB2014858A (en) | 1979-09-05 |
GB2014858B GB2014858B (en) | 1982-05-19 |
Family
ID=25377349
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8018819A Expired GB2048688B (en) | 1978-02-24 | 1978-11-16 | Programmable demand pacer |
GB7844840A Expired GB2014858B (en) | 1978-02-24 | 1978-11-16 | Programmable demand heart pacer |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8018819A Expired GB2048688B (en) | 1978-02-24 | 1978-11-16 | Programmable demand pacer |
Country Status (5)
Country | Link |
---|---|
BR (1) | BR7808176A (en) |
DE (1) | DE2828127A1 (en) |
FR (1) | FR2417977A1 (en) |
GB (2) | GB2048688B (en) |
NL (1) | NL7901443A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011944A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Programmable implantable medical device |
EP0011937A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Implantable cardiac pacemaker pulse generator |
EP0011946A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Programmable medical device |
EP0011934A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Body stimulator |
EP0011931A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Cardiac pacemaker |
EP0011940A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Cardiac pacemaker pulse generator |
EP0011939A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Digital cardiac pacemaker pulse generator |
EP0011948A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Programmable cardiac pacemaker |
EP0011933A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Cardiac pacemaker |
EP0011950A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Body stimulator pulse generator |
EP0030135A1 (en) * | 1979-11-28 | 1981-06-10 | Medtronic, Inc. | Pacemaker with Hall effect element |
EP0031229A2 (en) * | 1979-12-13 | 1981-07-01 | American Hospital Supply Corporation | Improvements in cardiac pacer |
DE3110014A1 (en) * | 1980-05-19 | 1982-03-25 | Telectronics Pty. Ltd., Lane Cove, New South Wales | EXTERNALLY RESETTABLE TACHYCARDY REGULATOR PACEMAKER |
DE3110015A1 (en) * | 1980-03-25 | 1982-03-25 | Telectronics Pty. Ltd., Lane Cove, New South Wales | Tachycardia control pacemaker operating with two pulses |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2578227A (en) * | 1948-11-08 | 1951-12-11 | Chambers Corp | Rotatable burner support |
US4337777A (en) * | 1980-12-24 | 1982-07-06 | Medtronic, Inc. | Rate limited pacer |
FR2502501B1 (en) * | 1981-03-25 | 1988-09-16 | Telectronics Pty Ltd | ANTI-TACHYCARDIA STIMULATOR HAS BEEN RESTORED FROM THE OUTSIDE |
FR2504702A1 (en) * | 1981-04-23 | 1982-10-29 | Ela Medical Sa | METHOD FOR CONTROLLING AND ADJUSTING, IN PARTICULAR, A CARDIAC STIMULATOR, AND DEVICE FOR IMPLEMENTING SAID METHOD |
US4390020A (en) | 1983-02-17 | 1983-06-28 | Medtronic, Inc. | Implantable medical device and power source depletion control therefor |
US5161529A (en) * | 1988-12-02 | 1992-11-10 | Intermedics, Inc. | Cardiac pacemaker with capture verification |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3833005A (en) * | 1971-07-26 | 1974-09-03 | Medtronic Inc | Compared count digitally controlled pacemaker |
NL7700427A (en) * | 1976-03-03 | 1977-09-06 | Arco Med Prod Co | PLANTABLE DIGITAL PASSENGER WHICH IS FITTED WITH EXTERNALLY SELECTABLE BUSINESS PARAMETERS. |
FR2374024A1 (en) * | 1976-12-14 | 1978-07-13 | American Hospital Supply Corp | Battery operated implanted cardiac stimulator - has signal generator with D=A converter to provide basic signal repetition rate |
US4095603A (en) * | 1976-12-17 | 1978-06-20 | Cordis Corporation | Cardiac pacer employing discrete frequency changes |
US4164945A (en) * | 1977-06-13 | 1979-08-21 | Medtronic, Inc. | Digital cardiac pacemaker medical device |
DE2826189A1 (en) * | 1977-06-17 | 1979-01-18 | Esb Int Corp | METHOD OF MONITORING AND CHANGING CONTROL OF AN IMPLANTED PACEMAKER |
EP0001156B1 (en) * | 1977-08-19 | 1983-05-11 | BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin | Programmable, implantable body function control apparatus and method for reprogramming said apparatus |
-
1978
- 1978-06-27 DE DE19782828127 patent/DE2828127A1/en not_active Withdrawn
- 1978-07-18 FR FR7821321A patent/FR2417977A1/en not_active Withdrawn
- 1978-11-16 GB GB8018819A patent/GB2048688B/en not_active Expired
- 1978-11-16 GB GB7844840A patent/GB2014858B/en not_active Expired
- 1978-12-13 BR BR7808176A patent/BR7808176A/en unknown
-
1979
- 1979-02-23 NL NL7901443A patent/NL7901443A/en not_active Application Discontinuation
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011937A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Implantable cardiac pacemaker pulse generator |
EP0011931A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Cardiac pacemaker |
EP0011944A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Programmable implantable medical device |
EP0011934A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Body stimulator |
EP0011933A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Cardiac pacemaker |
EP0011940A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Cardiac pacemaker pulse generator |
EP0011939A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Digital cardiac pacemaker pulse generator |
EP0011948A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Programmable cardiac pacemaker |
EP0011933A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Cardiac pacemaker |
EP0011950A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Body stimulator pulse generator |
EP0011950A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Body stimulator pulse generator |
EP0011931A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Cardiac pacemaker |
EP0011946A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Programmable medical device |
EP0011937A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Implantable cardiac pacemaker pulse generator |
EP0011948A2 (en) * | 1978-11-06 | 1980-06-11 | Medtronic, Inc. | Programmable cardiac pacemaker |
EP0011934A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Body stimulator |
EP0011946A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Programmable medical device |
EP0011939A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Digital cardiac pacemaker pulse generator |
EP0011944A3 (en) * | 1978-11-06 | 1981-01-07 | Medtronic, Inc. | Programmable implantable medical device |
EP0011940A3 (en) * | 1978-11-06 | 1981-01-14 | Medtronic, Inc. | Cardiac pacemaker pulse generator |
EP0030135A1 (en) * | 1979-11-28 | 1981-06-10 | Medtronic, Inc. | Pacemaker with Hall effect element |
EP0031229A2 (en) * | 1979-12-13 | 1981-07-01 | American Hospital Supply Corporation | Improvements in cardiac pacer |
EP0031229A3 (en) * | 1979-12-13 | 1982-06-30 | American Hospital Supply Corporation | Improvements in cardiac pacer |
DE3110015A1 (en) * | 1980-03-25 | 1982-03-25 | Telectronics Pty. Ltd., Lane Cove, New South Wales | Tachycardia control pacemaker operating with two pulses |
DE3110014A1 (en) * | 1980-05-19 | 1982-03-25 | Telectronics Pty. Ltd., Lane Cove, New South Wales | EXTERNALLY RESETTABLE TACHYCARDY REGULATOR PACEMAKER |
Also Published As
Publication number | Publication date |
---|---|
NL7901443A (en) | 1979-08-28 |
FR2417977A1 (en) | 1979-09-21 |
GB2048688B (en) | 1982-04-28 |
GB2014858B (en) | 1982-05-19 |
GB2048688A (en) | 1980-12-17 |
DE2828127A1 (en) | 1979-08-30 |
BR7808176A (en) | 1979-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |