JPS59101160A - Platinum electrode body for pace maker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microelectrode body belonging to medical equipment among platinum electrode bodies, and particularly relates to a microelectrode body belonging to medical equipment, and particularly to a microelectrode body belonging to medical equipment. This invention relates to improvements in platinum electrode bodies for pacemakers belonging to parts.

BACKGROUND ART Conventionally, there have been medical devices in which a microelectrode body made of a platinum film is implanted in a heart having a heart disorder, particularly a disorder such as heart failure or arrhythmia, and when an electric shock is applied, the heart functions close to normal.

Since the platinum electrode body for pacemakers is implanted into the human body, it requires high purity of material, precision of shape and size, degree of sterilization, and characteristics as an electrode, and extremely high technology is required to obtain this. It is what you need.

In particular, when implanting the platinum electrode body for a pacemaker into the heart, it is necessary to ensure that it is firmly implanted and that it cannot be removed once it has been implanted. It is necessary to increase the electrical efficiency by increasing the electrical efficiency, and also to avoid causing unnecessary damage to the inside of the human body.For this reason, in order to manufacture microscopic platinum electrode bodies, it is necessary to avoid extreme irregularities and burrs. Efforts have been made to prevent this from occurring. For example, as shown in Figure 1, the head 2 of the rivet-shaped platinum electrode body 1 is formed into a spherical shape by pressing with a header machine or by cutting with lace processing to avoid unnecessary damage to the inside of the body. , a large number of minute through-holes 3 or blind holes are made in the spherical head 2 so that it is securely held on the heart wall, and the flesh wall is inserted into the minute through-holes 3 or blind holes. In addition, a cavity 4 is provided inside to reduce the weight.

The present invention ensures that the performance required of such a platinum electrode body for a pacemaker is further improved, and further reduces the weight and improves the strength.

An embodiment of the platinum electrode body for a pacemaker according to the present invention will be described below with reference to FIGS. A narrow spiral groove 5 is provided.

In another embodiment, the outer surface of the head 2I is provided with a shallow and narrow concave groove 6 in the shape of a multi-stage ring as shown in FIG.

As described above, the platinum electrode body for a pacemaker of the present invention has the spiral groove n5 or the multi-stage annular groove 6 provided on the outer surface of the head 2', so that the surface has very small unevenness with irregularities. It is a surface.

Therefore, when it is implanted into the heart, the outer surface is uneven, so when it is implanted into the heart, the flesh wall is caught in the through hole 3 or the upper opening groove 5 or 6 that has entered the blind hole, and it cannot be removed. The platinum electrode body 1' is securely held. Furthermore, the surface area of the head 2' is extremely large, so when it is embedded in the heart, the area of contact with the flesh wall is large, so that the electrical efficiency during energization is significantly improved. Moreover, since the groove 5 or 6 is provided on the outer surface of the head 21, the weight is light. Therefore, there is no burden on the heart v4 function, the amount of platinum used is reduced, and costs are reduced.

As detailed above, the platinum electrode body for a pacemaker of the present invention has concave grooves on the outer surface of the head to form an uneven surface, so it can be more securely held on the heart wall when implanted in the heart. It has high electrical efficiency and excellent performance when energized, and is light in weight, so it does not put a burden on cardiac function and is low in cost. Moreover, it has high mechanical strength. It can be said to be a revolutionary product that can replace conventional platinum electrode bodies.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of a conventional platinum electrode body for a pacemaker, FIGS. It is a perspective view showing an example. 1'... Platinum electrode body 21... Head, 3... Through hole, 4... Cavity, 5, 6... Concave groove. Applicant Tanaka Kikinzoku Kogyo Co., Ltd. Figure 1 Illustration 2 (Q) Figure 3

Claims (1)

[Claims] In a platinum electrode body for a pacemaker, which is shaped like a rivet and has a spherical head with many through holes or blind holes and is hollow inside, a spiral or multi-stage annular recess is formed on the outer surface of the head. A platinum electrode body for pacemakers characterized by having grooves.