JPH0719451Y2 - Bioelectric lead wire clip - Google Patents

Description

[Detailed description of the device]

 [Purpose of device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a clip which is connected to a bioelectrical amplifier and holds a signal lead wire of a catheter type electrode for guiding an electric signal generated in a living body to the bioelectrical amplifier. Regarding

[0002]

2. Description of the Related Art As an example of deriving an electric signal generated in a living body, a catheter type electrode is inserted into the living body as shown in FIG. There is one that detects an electric signal and leads the bioelectric signal to the outside of the body by a signal line 7 that is connected to the electrode and penetrates through the catheter. The other end of the catheter is in a state where the coating of the signal line 7 is peeled off and the lead wire is exposed.

Conventionally, in order to connect such an electrode to a bioelectrical amplifier or the like, for example, a clip configured as shown in the perspective view of FIG. 4 has been used. Its cross-sectional view is shown in FIG.
Shown in. In FIGS. 4 and 5, the clip 1 is attached to the coil-shaped spring 5 to which one end of the lead wire 4 is connected, and is electrically connected to the lead wire 4. One end of the coiled spring 5 is fixed to the main body 2 and the other end is fixed to the pressing portion 3, so that the pressing portion 3 can slide inside the main body 2. The tip of the clip 1 is bent in a U-shape to form a U-shaped portion 1a. The pressing portion 3 is pushed into the main body 2, the lead wire 8 is placed in the gap between the main body and the U-shaped portion 1a, and the pressing portion 3 is released to clamp the lead wire 8. On the other hand, the other end of the lead wire 4 is connected to the bio-amplifier or the like.

[0004]

According to the conventional clip shown in FIGS. 4 and 5 constructed as described above, the clamping force is determined by the releasing force of the coil spring 5. To increase the clamping force, the coiled spring 5 may be thickened,
There is a drawback that the pressing portion 3 is large and heavy.

Further, it must be sterilized before it can be used in the vicinity of the living body.
The conventional clip shown in (1) has a drawback that it cannot be completely sterilized because the structure is complicated as shown in FIG.

The present invention was devised to solve these drawbacks. [Device configuration]

[0007]

A pair of facing arm members are covered with an elastic member, one of the arm members is provided with a hook member, and the hook member is passed through a through hole formed in the other arm member to the outside. The lead wire for leading out the biomedical signal of the catheter type electrode is sandwiched between the elastic member and the hook member which are projected onto the arm member. The present invention is a clip for a lead wire having the above configuration.

[0008]

The lead wire for leading out the biological signal of the catheter type electrode is sandwiched between the outer surface of the elastic member forming one arm member and the bent portion at the tip of the hook member by the strong elastic force of the arm member. Therefore, the clip and the lead wire are firmly and stably connected.

[0109]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention. The clip main body 9 is formed of an elastic member 10 made of an elastic resin in a substantially U-shape, and is substantially parallel in a state where no external force acts. A hook member 13 is implanted near the tip of the first arm member 11 in the direction of the second arm member 12. The hook member 13 is formed of a steel wire in a substantially U shape, one end of which is fixed to the first arm member 11 and the other end of which is open. Also, one end of the lead wire 4 connected to a bioelectric amplifier (not shown) is fixed to the U-shaped lower portion 9a of the clip body 9, and the arm member 11 is provided.
And the same elastic member 10 as 12 is covered.

A long hole-like through hole 14 is formed in the vicinity of the tip of the second arm member 12 at a position where the hook member 13 can penetrate, and the hook member 13 is provided in a state where no external force acts on the clip body 9. Through the through hole 14 to project to the outside of the second arm member 12. Hook member at this time
The protruding length of 13 is such that the distance between the circumference of the semi-annular portion at the tip of the hook member 13 and the outer surface of the second arm member 12 is
The diameter is smaller than the diameter of the lead wire 8. That is, the lead wire cannot be inserted between the second arm member and the inner circumference of the tip of the hook member 13 unless the first arm member 11 and the second arm member 12 are brought close to each other.

Next, the operation of this embodiment will be described. A hook member 13 that grips the pair of arm members 11 and 12 of the clip body 9 with fingers to bring them closer to each other and projects to the outside of the second arm member 12.
Increase the length of. Then, after inserting the core wire of the signal wire 7, that is, the lead wire 8 between the outer surface of the second arm member 12 and the inner circumference of the semi-annular portion of the hook member 13, the finger is released. As a result, the pair of arm members 11 and 12 try to return to their original positions by the biasing force, so that the lead wire 8 of the signal line 7 is clamped between the second arm member 12 and the hook member 13, The body 9 is connected to the lead wire 8.

According to this embodiment, since the lead wire 8 of the signal wire 7 is sandwiched between the clip body 9 and the hook member 13, the clip body 9 and the lead wire 8 are firmly and stably connected. It

[0013]

As described above, according to the present invention,
Since the lead wire is sandwiched between the hook member provided on one of the pair of arm members forming the clip and the other arm member, the lead wire and the clip are firmly stabilized with a simple structure. Then you can connect.

Further, the simple structure allows easy and complete sterilization.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a perspective view showing a connection state of the present invention.

FIG. 4 is a plan view showing a conventional clip.

FIG. 5 is a cross-sectional view showing a conventional clip.

FIG. 6 is a diagram showing a usage state of signal lines.

[Explanation of symbols]

 9 clip body 10 elastic member 11 first arm member 12 second arm member 13 hook member 14 through hole

Claims (1)

[Scope of utility model registration request] 1. A clip for performing electrical connection by sandwiching a signal derivation lead wire of a bioelectrode for deducing an electric signal generated in a living body to a bioelectricity amplifier or the like, and a pair of opposing arm members are elastic. A clip body covered with a member, a hook member that is planted in one of the arm members and projects toward the other arm member, and a penetrating hole through which a protruding portion of the hook member that is formed in the other arm member penetrates. A lead wire clip for deriving bioelectricity, wherein the lead wire is sandwiched between the outer surface of the other arm member and the protruding portion of the hook member to show an electrical connection. .