NL7909050A - End cavity electrode for heart stimulator - has silicon electrode in cavity at tip of platinum tube which is held in finned exterior flexible tube - Google Patents
End cavity electrode for heart stimulator - has silicon electrode in cavity at tip of platinum tube which is held in finned exterior flexible tube Download PDFInfo
- Publication number
- NL7909050A NL7909050A NL7909050A NL7909050A NL7909050A NL 7909050 A NL7909050 A NL 7909050A NL 7909050 A NL7909050 A NL 7909050A NL 7909050 A NL7909050 A NL 7909050A NL 7909050 A NL7909050 A NL 7909050A
- Authority
- NL
- Netherlands
- Prior art keywords
- electrode
- tube
- cavity
- platinum
- tip
- Prior art date
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract 5
- 229910052710 silicon Inorganic materials 0.000 title abstract 5
- 239000010703 silicon Substances 0.000 title abstract 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 241000251730 Chondrichthyes Species 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 4
- 230000000638 stimulation Effects 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 4
- 206010016654 Fibrosis Diseases 0.000 description 3
- 230000004761 fibrosis Effects 0.000 description 3
- 230000009795 fibrotic process Effects 0.000 description 2
- 210000001715 carotid artery Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000004118 muscle contraction Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/056—Transvascular endocardial electrode systems
- A61N1/057—Anchoring means; Means for fixing the head inside the heart
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (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)
Abstract
Description
_ — * - \ 88h3_ - * - \ 88h3
Endocavitaire elektrodeEndocavity electrode
De uitvinding heeft betrekking op een endocavitaire elektrode, waarvan de verwijdering wanneer deze niet langer operatief is, gemakkelijker plaatsvindt dan bij de bekende elektroden van dit type.The invention relates to an endocavitary electrode, the removal of which, when it is no longer operative, takes place more easily than with the known electrodes of this type.
Een dergelijke endocavitaire elektrode wordt in de rechter 5 ventricula van het hart ingebracht, waarbij, als- toegang daartoe de hoofd- of halsslagader wordt gebruikt, zodat wanneer de elektrode wordt verbonden met de hartstimulator, welke de elektrische energie levert, de elektrode aan het hart tegelijkertijd de betreffende pulsen voor de spiersamentrekkingen daarvan levert.Such an endocavitary electrode is inserted into the right ventricula of the heart using, if access to it, the main or carotid artery so that when the electrode is connected to the pacemaker supplying the electrical energy, the electrode is supplied to the heart simultaneously delivers the appropriate pulses for its muscle contractions.
10 Dit type elektrode heeft het probleem, dat wanneer de elektrode eenmaal in de rechter ventricula is gefixeerd, na een bepaalde periode een fibrotisch proces om de bevestigingshaken en bij het contactpunt van de elektrode en ventricula optreedt. Deze fibrosis leidt tot weefsel, dat een slechte geleider is en derhalve belet, dat de elektrische 15 pulsen naar het hart worden overgedragen. Fanneer derhalve tussen de elektrode en het hart een door de fibrose veroorzaakte hoge drempel aanwezig is, d.w.z. wanneer de laag van inert weefsel dik is, is de elektrode inoperatief en dient deze te worden verwijderd en door een andere elektrode te worden vervangen.This type of electrode has the problem that once the electrode is fixed in the right ventricula, after a certain period of time a fibrotic process occurs around the mounting hooks and at the contact point of the electrode and ventricula. This fibrosis leads to tissue that is a poor conductor and therefore prevents the electrical pulses from being transferred to the heart. Therefore, when a high threshold caused by the fibrosis is present between the electrode and the heart, i.e., when the layer of inert tissue is thick, the electrode is inoperative and should be removed and replaced with another electrode.
20 Het voornaamste probleem doet zich voor op het tijdstip waarop de elektrode wordt verwijderd, aangezien de bevestigingshaken normaliter vastzitten en, aangezien zij in de massa inert weefsel, die door het fibrotisch proces is ontstaan, zijn ingebed, zij moeilijk kunnen worden verwijderd.The main problem arises at the time of the electrode removal, since the attachment hooks are normally stuck and, as they are embedded in the mass of inert tissue created by the fibrotic process, they are difficult to remove.
25 Bij de endocavitaire elektrode volgens de uitvinding worden deze problemen volledig vermeden, aangezien de bevestigingshaken los met de elektrode zijn gekoppeld. Fanneer derhalve aan deze laatste wordt getrokken, worden de betreffende haken daarvan vrijgegeven en kan de elektrode gemakkelijk worden verwijderd.With the endocavitary electrode according to the invention these problems are completely avoided, since the fixing hooks are loosely coupled to the electrode. Therefore, when the latter is pulled, the respective hooks thereof are released and the electrode can be easily removed.
30 De uitvinding zal onderstaand nader worden toegelicht onder verwijzing naar de tekening. Daarbij toont: > jry 7909050 2 / figuur 1 een bovenzijaanzicht van een endocavitaire elektrode - volgens de uitvinding, welke gedeeltelijk is weggesneden om de inwen dige opbouw daarvan aan te geven; en figuur 2 een detaildoorsnede van de koppeling tussen de elektrode 5 en een van de bevestigingshaken daarvan.The invention will be explained in more detail below with reference to the drawing. In addition: jry 7909050 2 / figure 1 shows a top side view of an endocavitary electrode - according to the invention, which has been partly cut away to indicate its internal structure; and Figure 2 shows a detail section of the coupling between the electrode 5 and one of its fixing hooks.
Uit de tekening blijkt, dat de elektrode volgens de uitvinding is voorzien van een platina buis 1, waarvan het uiteinde uitloopt in een contactkop 2, welke in aanraking met het hart kan worden gebracht en via welke kop de pulsen worden overgedragen. De platina elektrode 1 10 is ondergebracht in een buigzame siliconbuis 3, waarmede de bevesti gingshaken U zijn gekoppeld, zoals meer gedetailleerd in figuur 2 van de tekening is aangegeven.From the drawing it appears that the electrode according to the invention is provided with a platinum tube 1, the end of which ends in a contact head 2, which can be brought into contact with the heart and through which head the pulses are transmitted. The platinum electrode 1 10 is housed in a flexible silicone tube 3 with which the attachment hooks U are coupled, as shown in more detail in Figure 2 of the drawing.
In de siliconbuis 3 bevindt zich een geleider 5, vla welke geleider de elektrische pulsen vanuit de hartstimulator naar de kop 2 van 15 de elektrode worden overgedragen.In the silicone tube 3 there is a conductor 5, which conductor transfers the electrical pulses from the pacemaker to the head 2 of the electrode.
De bevestigingshaken k hebben de vorm van een haaievin en zijn opgesteld in over 120° ten opzichte van elkaar verschoven vlakken, terwijl de haken tegelijkertijd verschillende niveau’s van de elektrode innemen. Door deze verdeling wordt een fixering in de trabeculae 20 van het ventriculum via een of meer vinnen vereenvoudigd, terwijl te vens het oppervlak, dat aan fibrosis is blootgesteld, ten opzichte van de elektrode wordt gereduceerd.The mounting hooks k are in the shape of a shark fin and are arranged in planes offset by 120 °, while the hooks simultaneously occupy different levels of the electrode. This distribution simplifies fixation in the trabeculae 20 of the ventriculum through one or more fins, while also reducing the area exposed to fibrosis relative to the electrode.
Tegelijkertijd wordt hierdoor het verwijderen van de elektrode in het geval, dat deze inoperatief is geworden, vereenvoudigd aange-25 zien de in het fibreuse weefsel opgesloten vin k gemakkelijk van de elektrode kan worden vrijgegeven en zich aan de spiervand van het hart hecht.At the same time, this simplifies the removal of the electrode in case it has become inoperative since the fin trapped in the fibrous tissue can be easily released from the electrode and adheres to the muscle of the heart.
Teneinde het contactvlak te reduceren is de kop 2 van de elektrode voorzien van een lichaam 6, eveneens uit silicon bestaande, welk 30 lichaam een centrale positie inneemt, zoals uit figuur 1 van de teke ning blijkt.In order to reduce the contact surface, the head 2 of the electrode is provided with a body 6, also consisting of silicone, which body occupies a central position, as appears from figure 1 of the drawing.
.:¾ 7909050.: ¾ 7909050
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES1978240204U ES240204Y (en) | 1978-12-18 | 1978-12-18 | AN ENDOCAVITARY ELECTRODE, PERFECTED |
| ES240204 | 1978-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7909050A true NL7909050A (en) | 1980-06-20 |
Family
ID=8400237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7909050A NL7909050A (en) | 1978-12-18 | 1979-12-14 | End cavity electrode for heart stimulator - has silicon electrode in cavity at tip of platinum tube which is held in finned exterior flexible tube |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES240204Y (en) |
| NL (1) | NL7909050A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041254A1 (en) * | 1980-05-30 | 1981-12-09 | Hans-Jürgen Dipl.-Ing. Bisping | Implantable pacemaker leads |
| US4585013A (en) * | 1981-04-20 | 1986-04-29 | Cordis Corporation | Lumenless pervenous electrical lead and method of implantation |
| US4721118A (en) * | 1981-04-20 | 1988-01-26 | Cordis Leads, Inc. | Pervenous electrical pacing lead with foldable fins |
| US4722353A (en) * | 1985-09-16 | 1988-02-02 | Intermedics, Inc. | Stabilizer for implantable electrode |
| US6405091B1 (en) | 1999-07-20 | 2002-06-11 | Pacesetter, Inc. | Lead assembly with masked microdisk tip electrode and monolithic controlled release device |
-
1978
- 1978-12-18 ES ES1978240204U patent/ES240204Y/en not_active Expired
-
1979
- 1979-12-14 NL NL7909050A patent/NL7909050A/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041254A1 (en) * | 1980-05-30 | 1981-12-09 | Hans-Jürgen Dipl.-Ing. Bisping | Implantable pacemaker leads |
| US4585013A (en) * | 1981-04-20 | 1986-04-29 | Cordis Corporation | Lumenless pervenous electrical lead and method of implantation |
| US4721118A (en) * | 1981-04-20 | 1988-01-26 | Cordis Leads, Inc. | Pervenous electrical pacing lead with foldable fins |
| US4722353A (en) * | 1985-09-16 | 1988-02-02 | Intermedics, Inc. | Stabilizer for implantable electrode |
| US6405091B1 (en) | 1999-07-20 | 2002-06-11 | Pacesetter, Inc. | Lead assembly with masked microdisk tip electrode and monolithic controlled release device |
Also Published As
| Publication number | Publication date |
|---|---|
| ES240204U (en) | 1979-02-01 |
| ES240204Y (en) | 1979-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| A85 | Still pending on 85-01-01 | ||
| BV | The patent application has lapsed |