DE1589585A1 - Implantable cardiac stimulator - Google Patents

Description

Patent attorney

Hanover, Abfaestr. 20th

. March 12, 1967

My files: 1257 Dr.J / Ha.

Chirana Zavody zdravotnickej techniky, odborovy podnik,

Stara Tura -

Implantable cardiac stimulator.

The invention relates to an implantable ICardiostimulator with an improved connection of the stimulation electrode.

The implantable cardio stimulator is a generator for electrical impulses to regulate the heart's activity in the case of severe cardiac arrhythmias. This miniature generator, including the power sources, is unhealthy from one point of view Material surrounding the existing sheath and continuously operated on in the human body, that is implanted. One of the output terminals of the pulse generator, the stimulation terminal, is connected to the heart muscles (Myocardium) inserted electrode connected. The second The output terminal, the inactive terminal, is the one used

009 818/0891 BAD

Method of unipolar stimulation associated with the tissue in the vicinity of the implanted device. The connection of the The conductor of the stimulating electrode in the previously known types of cardio stimulator is usually designed in such a way that the end of the conductor is inserted into a channel in the device body and fastened or sealed there with screws. Of the The conductor goes out of the device perpendicular to the surface of the device. With this arrangement, interference with the Conductor in the connection point, that is, the conductor is broken off at the edge of the exit opening.

This shortcoming of existing designs of cardiac stimulators is eliminated by the cardiac stimulator according to the invention. The invention creates an exit for the conductor from the case, in which a breakage is already safely avoided by the special type of continuation of the ladder will.

The invention consists in the fact that the outlet opening of the channel opens into a recess (setting) in the case of the cardiostimulator and that the central axis of the channel intended for the conductor in the case of the lvardiostimulator from that with this central axis parallel to the outline of the cardiostimulator case at a distance of 5 up to 15 mm running tangent is arranged, wherein the ICanal central axis and the tangent lie in the plane of symmetry of the cardiostimulator case.

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The invention is shown schematically at one point in the drawing illustrated Auaführungsbeispiel the cardio stimulator of the invention explained in more detail. Show it: :

Fig. T is an elevation of the cardiac stimulator with four feed cells,

Fig. 2 is an elevation of the cardiac stimulator with five feed cells,

Fig. 3 is a plan view of the cardio stimulator with four feed cells, and

Fig. 4 is a plan view of the cardiac stimulator with five feed cells.

The ICardiostimulator according to the invention consists of one The case with a channel 2 for the ladder 3 The ladder 3 goes through the recess i, setting) this case 1 arranged opening 6 therethrough. The conductor 3 is fastened in the case 1 with the aid of screws 4. The inactive clamp 5 is in the form of a metal plate arranged on the case 1.

The central axis 7 of the channel 2 with aer opening 6 for the The conductor 3 runs parallel to the tangent 8, which runs on the outline of the case 1 at a distance of 5 to 15 mm, the center axis 7 of the channel 2 and the tangent 8 in the plane of symmetry of the case 1 deö iiardio stimulators lie. .

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By the execution of mounting and outlet arrangement of the conductor 3 of the sheath 1 of the cardiac stimulator is allows _f in the implantation of the 0-erätes in the human body a loop from the from the channel 2 out passing through the aperture 6 conductor 3 around the device to form around, d. h » to lay the conductor 3 in the form of a curve. This loop has a large radius, so that nowhere is an increased mechanical stress or a breakage of the conductor 3 from the device.

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At the point of the opening 6, the case Π has a light one Classification (recess) that have a better exit of the conductor 3 is made possible by the fact that at this point the angle between the exiting conductor 3 and the sheath surface is relatively large, while the angle of this emerging conductor 3 with a sheath enveloping Curve is very small.

009818/0891

Claims (1)

Claim Implantable cardiac stimulator with a case at least provided with an exit opening for the conductor connection is, characterized, that the outlet opening 6 of the channel 2 in a recess (Classification) of the case 1 of the cardiostimulator opens and that the central axis 7 of the intended for the conductor 5 Channel 2 in the case 1 of the cardiac stimulator from the lütt-e lache e 7 parallel to the outline of the case 1 of the cardiac stimulator at a distance of 5 to 15 mm extending tangent 8 is arranged, the central axis 7 of the channel 2 and the tangent 8 lie in the plane of symmetry of the sheath 1 of the cardiostimulator. 009818/0891 - 4- left side