EP0000280A1 - Herzschrittmacher - Google Patents

Herzschrittmacher Download PDF

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Publication number
EP0000280A1
EP0000280A1 EP78300093A EP78300093A EP0000280A1 EP 0000280 A1 EP0000280 A1 EP 0000280A1 EP 78300093 A EP78300093 A EP 78300093A EP 78300093 A EP78300093 A EP 78300093A EP 0000280 A1 EP0000280 A1 EP 0000280A1
Authority
EP
European Patent Office
Prior art keywords
terminal means
housing
terminal
conductor
electrode
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.)
Withdrawn
Application number
EP78300093A
Other languages
English (en)
French (fr)
Inventor
Frank Tunstall Jackson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STIMTECH Inc
Original Assignee
STIMTECH Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by STIMTECH Inc filed Critical STIMTECH Inc
Publication of EP0000280A1 publication Critical patent/EP0000280A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • 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
    • A61N1/375—Constructional arrangements, e.g. casings
    • A61N1/3752—Details of casing-lead connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • This invention relates to cardiac pacemakers and is particularly concerned with the means for making electrical connection between electrical signal generating means and an electrode conductor for conveying pacing signals to the heart.
  • Implantable cardiac pacemakers include an electronic pulse generator which is implanted in the body and an electrode lead or conductor (catheter) extending from the pulse generator for carrying stimulating pulses to an electrode disposed in or on the heart. Care must be taken over the connection between the electrode-lead and the pulse generator (normally a terminal block in the latter), in that the connection must be secure in the body and the interface must be impervious to body fluids.
  • the electrode lead has been clamped in the terminal block of the pulse generator by a grub screw, with sufficient sealing plugs, sealing rings, gaskets and so forth being provided to exclude body fluids.
  • the grub screw-type fitting is not entirely satisfactory, for example the end of the screw tends to burr over and the clamping which is provided is over only a limited area of contact between the grub screw and the electrode lead.
  • the object of the invention is to provide an improved connector system for such apparatus which not only provides a greater area of clamping "contact" of the electrode lead relative to the terminal block, but also, at the same time, enables electrode leads of differing diameters to be accommodated within the -same terminal block. With these advantages, sealing of the connection from body fluids can still be maintained.
  • a cardiac pacemaker including implantable housing means, electrical signal generating means enclosed within said housing, an electrode conductor for conveying pacing signals to the heart, and apparatus for maintaining sealable electrical interconnection between said generating means and said electrode, characterised in that said apparatus comprises:
  • the pacemaker and electrode conductors can be supplied for implantation separately and since the pacemaker can, within reason, make electrical connection with electrode conductors of different diameters, the pacemaker itself (including the interconnection apparatus) forms a separate aspect of the invention.
  • the second terminal means is provided with two or more notches surrounding the entry point of the electrode conductor (the catheter), and a separate spanner has protuberances matable with the notches.
  • the spanner- includes a recessed channel to accommodate the catheter, and thereby may be utilized to tighten or loosen the second terminal means and catheter from the first terminal means.
  • Utilization of connector systems in accordance with the principles of the present invention facilitates a pacer feedthrough scheme whereby the entire pacer housing constitutes two portions, one carrying the-interconnection apparatus, and the other carrying the balance of the pacer apparatus. These separate portions are separately manufactured and stored, subsequently to be structurally and electrically interconnected.
  • the connector system comprises a terminal block 2, a connector 4, and a pacemaker electrode lead 6.
  • the terminal block 2 is installed within the plastics wall 8 of an implantable pacemaker casing.
  • the terminal block 2 is located at the end of a cylindrical bore 10 leading to the outer surface of the casing; the block is formed of an electrically-conductive metal and is electrically connected to the pacemaker electrical circuitry (not shown).
  • the terminal block has a bore 12 having a threaded portion 14, a tapering, conical portion 16, and a narrower portion 18.
  • the connector 4' is formed of four components: a metal collet 20, a cylindrical plastics body 22, a metal end p ortion.24, and an outer plastics sealing sleeve 26.
  • the collet 20 has an axial bore 28, a threaded.outer surface 30 terminating in a tapering, conical portion 32.
  • a number of radially-disposed slots 34 extend inwardly from the end of of projections may be employed, with the projections engaging the slots 40 on the metal end portion 24. Alternatively. portions may be left protruding from the pacemaker casing for engagement by, e.g. a spanner.
  • the tapering conical surface 32 of the collet approaches and then contacts the complementary tapering conical portion 16 of the terminal block 2.
  • the tapering conical surface 32 is urged inwardly by a camming action relative to tapering conical portion 16 - this movement being enabled by the presence of the slots 34 on the collet.
  • the inward movement is sufficient for the end of the metal collet adjacent the tapering surfaces to engage and hold firmly the exposed connector pin portion 46 of the electrode lead 6. There then exists a good electrical connection between the terminal block 2 and the electrode lead 6.
  • collet can be employed to clamp electrode leads having connector pin portions of differing diameters. If necessary, collets having different sized axial bores 28 can be supplied so that a choice can be made to select the most appropriate combination for the electrode lead to be employed.
  • FIG. 5 shows an isometric view of a pacer wherein an electrical lead is connected and cealed. in place in accordance with the principles of the present invention.
  • the pacer of Figure 3 is encased in a housing 50l of contemporary configuration and design, advantageously composed of a metal or alloy which is non-reactive with body tissues and fluids.
  • the plastic sealing sleeve 26 in accordance with the principles of the present invention defines an ontermest circumferential flange 624 which engages the housing 501 when the lead 6 is in place and electrical contact is being made generally as shown in Figure 2.
  • the catheter 644 expends outwardly, as is known in the art. and into the patient,s body such as to the heart for pacing.
  • FIG 4 there is shown an exploded view of the elements of Figure 3 incorporating the principles view of the elements of Figure 3 incorporating the principles of the present invention.
  • the plastics wall 8 of the embodiment of Fgure 1 and 2 is shown in Figure 4 as a cylindrical part 608 having an axial bore 708 therein to accommodate the connector 4, and the plastics sleeve 26 thereof, which in turn carries a collet 30 as shown herein,
  • the cylindrical bodv 608 is fixedly mounted within the housing 501, as shown hereinafter, and includes an outwardly penetrating electrical connection terminal 602, which in turn makes electrical connection through a suitacle terminal block (not shown in Figures 3 or 4 , but clearly shown in Figure 6), whereby the collet 20 makes electrical contact therewith.
  • the catheter 644 has an insulated body 48 penetrated by pin 46, and the raised circumferentind of the insulating body Informing Next to Figure 5, there is shown an advantageous application of the principles of the present evention specifically wherein utilization of a collet feedithrough connector in accordance with the present invention facilitates bifurcation of the pacer housing 501 into two separate and distinct parts 701 and 702, generally along the line 703 as shown.
  • the cylindrical plastic receptacle 608 is rigidly and fixedly mounted and encased within portion 702 of the pacer housing, and the electronics and battery aspects (not shown) are encased within the other portion 701.
  • the electrical connector 602, as aforesaid, extends outwardly from cylindrical portion 608 from portion 702, and into the other portion 701 for electrical connection with the circuitry and the like encased therein.
  • top portion 702 including component 608, 602, and the like, may be manufactured and stored separately, to be utilized in conjunction with any circuitry, as desired, which is separately manufactured in portion 701.
  • portions 701 and 702 are assembled as shown, with electrical contact being established between respective portions 701 and 702 at 602, and the unit is secured and sealed, such as by weldment along line 703.
  • Figure 6 shows a suitable cross-section of the Figure 5 apparatus, whereby the feedthrough electrical connection may be readily understood.
  • the Figure 6 view is similar to the previously described view of Figure 2.
  • the lead 6 penetrates the connector 4, which in fully inserted into the cylindrical portion 608, 20 engaging terminal block 2 within aleeve 608.
  • Electrical conductor 44 from penetrates the electrical lead 6, through 48, and within the collet 20.
  • Electrical and 12-12 are respectively depicted in Figures 9 and 10 thereby affording further clarification of the apparation shown in Figure 6 and in turn, Figure 5.
  • the spanner 600 may perhaps be better understood upon consideration of Figure 7, and Figure 8 which is a top sectional view thereof takenalong section 10-10.
  • the spanner 600 has slots 605 and 607 in matable engagement with radially opposing slots 40 in flange 624 of the connector 4.
  • the connector is in the process of insertion, for purposes of forming a connection such as shown in Figures 2 and 6.
  • the lead 6, and particularly the tapering portion of insulating body 48 rests within the slot 607 of spanner 600, with catheter lead 644 extending backwardly along the slot and outwardly therefrom.
  • the spanner facilitates proper screw tightening of the connector 4--collet 20 combination within the unit as shown.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)
EP78300093A 1977-07-01 1978-06-27 Herzschrittmacher Withdrawn EP0000280A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB2762577 1977-07-01
GB2762577 1977-07-01
US91547878A 1978-06-14 1978-06-14
US915478 1978-06-14

Publications (1)

Publication Number Publication Date
EP0000280A1 true EP0000280A1 (de) 1979-01-10

Family

ID=26258912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78300093A Withdrawn EP0000280A1 (de) 1977-07-01 1978-06-27 Herzschrittmacher

Country Status (3)

Country Link
EP (1) EP0000280A1 (de)
AU (1) AU3753378A (de)
IT (1) IT1156843B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006281A1 (de) * 1978-04-07 1980-01-09 Medtronic, Inc. In einen Körper implantierbarer Stimulator und Anschluss hierfür
US5789367A (en) * 1995-11-30 1998-08-04 Lever Brothers Company, Division Of Conopco, Inc. Detergent compositions containing soil release polymers
WO2004026393A2 (en) * 2002-09-23 2004-04-01 Medtronic, Inc. Medical device delivery system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973219A (en) * 1959-04-27 1961-02-28 Zalk Sidney Tool-miniature connector remover
CH457639A (de) * 1967-02-17 1968-06-15 Contraves Ag Zur Einbettung in einen lebenden Körper bestimmte Impulserzeugungsvorrichtung
FR2062750A5 (de) * 1970-09-28 1971-06-25 Camera Julien
GB1304140A (de) * 1970-10-28 1973-01-24
US3760332A (en) * 1972-03-09 1973-09-18 American Optical Corp Pacer connector
US3842842A (en) * 1971-09-24 1974-10-22 A Wilds Long life implantable cardiac pacer generator and method of construction
FR2224894A1 (de) * 1973-04-04 1974-10-31 Lindsay Specialty Prod Ltd
US4010757A (en) * 1974-02-19 1977-03-08 Jula James L Auxiliary tool for removing electrode from holder

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973219A (en) * 1959-04-27 1961-02-28 Zalk Sidney Tool-miniature connector remover
CH457639A (de) * 1967-02-17 1968-06-15 Contraves Ag Zur Einbettung in einen lebenden Körper bestimmte Impulserzeugungsvorrichtung
FR2062750A5 (de) * 1970-09-28 1971-06-25 Camera Julien
GB1304140A (de) * 1970-10-28 1973-01-24
US3842842A (en) * 1971-09-24 1974-10-22 A Wilds Long life implantable cardiac pacer generator and method of construction
US3760332A (en) * 1972-03-09 1973-09-18 American Optical Corp Pacer connector
FR2224894A1 (de) * 1973-04-04 1974-10-31 Lindsay Specialty Prod Ltd
US4010757A (en) * 1974-02-19 1977-03-08 Jula James L Auxiliary tool for removing electrode from holder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006281A1 (de) * 1978-04-07 1980-01-09 Medtronic, Inc. In einen Körper implantierbarer Stimulator und Anschluss hierfür
US5789367A (en) * 1995-11-30 1998-08-04 Lever Brothers Company, Division Of Conopco, Inc. Detergent compositions containing soil release polymers
WO2004026393A2 (en) * 2002-09-23 2004-04-01 Medtronic, Inc. Medical device delivery system
WO2004026393A3 (en) * 2002-09-23 2004-05-06 Medtronic Inc Medical device delivery system
US7092765B2 (en) 2002-09-23 2006-08-15 Medtronic, Inc. Non-sheath based medical device delivery system

Also Published As

Publication number Publication date
IT7850106A0 (it) 1978-06-29
IT1156843B (it) 1987-02-04
AU3753378A (en) 1980-01-03

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB NL SE

17P Request for examination filed
STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn
RIN1 Information on inventor provided before grant (corrected)

Inventor name: JACKSON, FRANK TUNSTALL