CN100344260C

CN100344260C - Hand held detection electrode for detecting impedance or resistance

Info

Publication number: CN100344260C
Application number: CNB2005100604553A
Authority: CN
Inventors: 李江
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2005-08-23
Filing date: 2005-08-23
Publication date: 2007-10-24
Anticipated expiration: 2025-08-23
Also published as: CN1736328A

Abstract

The present invention discloses a hand held detection electrode for detecting impedance or resistance. A cylindrical metallic conductor is formed by bending. The shorter end of the metallic conductor is connected with a sponge which absorbs conductive liquid. An insulating sleeve barrel is sheathed outside the shorter end of the metallic conductor and the sponge. An insulating outer shell is sheathed on the longer section of the metallic conductor. The bending part of the metallic conductor, which is not covered by the insulating sleeve barrel and the insulating outer shell, is covered with insulating lacquer or a plastic outer shell. The longer end of the metallic conductor positioned in the insulating outer shell is led out by a conductor wire. The present invention is suitable for being used in a hand held mode and is used for measuring biologic impedance and resistance. The electrode is provided with a handle above which a concave pit is arranged. A thumb or a forefinger can be conveniently put on the concave pit to apply certain force to the electrode or obtain certain hand feeling. The head part of the electrode is provided with the cylindrical sponge which absorbs the conductive liquid or foamed cotton, which provides a buffering function for detecting an electric signal.

Description

The hand-held probe that is used for impedance or resistance detection

Technical field

The present invention relates to a kind of medical apparatus and instruments, particularly a kind of hand-held probe that is used for impedance or resistance detection.

Background technology

Measuring bio-impedance, resistance or current potential all needs to use electrode, and in order to form the loop, electrode has two usually, one of them conductive area is bigger, is fixed on organism body surface somewhere, often is called reference electrode, another is placed on needs sites measured, often is called exploring electrode.The relevant patent of existing exploring electrode need be fixed on organism surface by adhesive tape mostly, the electrical quantity that detects a series of positions if desired is then quite loaded down with trivial details, as the novel a kind of acquiring biological electric signals electrode ZL00244894.7 of practicality, a kind of body surface bio electricity of utility model detecting electrode ZL 92242524.8.Also have in actual the use and use sucker to fix exploring electrode, but sucker is all opaque, be not easy sucker is fixed on accurately on the position, organism surface is a lot of local uneven in addition, be not suitable for sucker and fix.The medical exploring electrode terminal 96249238.8 of utility model can detect the electrical quantity of finger position easily by a finger ring, but finger ring will be pointed both sides and link together by the finger ring that conducts electricity, sometimes need to detect respectively the electrical quantity of finger both sides, finger ring is just no longer suitable.

Summary of the invention

The object of the present invention is to provide a kind of hand-held probe that is used for impedance or resistance detection, the head of metallic conductor is equipped with cylindric sponge or the foam that has adsorbed conducting liquid in its ingredient, for the detection of the signal of telecommunication provides cushioning effect.When the reference electrode that is fixed on the organism body surface that the present invention and have big conductive area is used, when hand-held probe contact organism, a loop can be formed between reference electrode and the hand-held probe, thereby impedance, the resistance of organism can be measured.

In order to achieve the above object, the technical solution used in the present invention is as follows: it comprises metallic conductor, sponge, insulating sleeve, insulation crust.Metallic conductor forms through bending, short end of metallic conductor links to each other with the sponge of absorption conducting liquid, insulating sleeve is enclosed within outside metallic conductor short a section and the sponge, insulation crust is enclosed within metallic conductor a section than length, the sweep that metallic conductor is insulated outside sleeve and the insulation crust covering covers insulating paint or cabinet, be positioned at the long end of metallic conductor of insulation crust, draw with lead.

The useful effect that the present invention has is: it is suitable for hand-held the use, is used to measure bio-impedance, resistance; Electrode has a handle, and handle top also has a pit, is fit to thumb or forefinger and is placed on that counter electrode applies certain strength or obtains certain hands sense on the pit; The head of electrode is equipped with cylindric sponge or the foam that has adsorbed conducting liquid, for the detection of the signal of telecommunication provides cushioning effect.

Description of drawings

Fig. 1 is a structural principle cutaway view of the present invention;

Fig. 2 is the vertical view of Fig. 1 of the present invention.

Among the figure: 1, metallic conductor, 2, sponge, 3, insulating sleeve, 4, insulation crust, 5, screw, 6, nut, 7, conducting terminal, 8, lead.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

As accompanying drawing 1, shown in Figure 2, comprise metallic conductor 1, sponge 2, insulating sleeve 3, insulation crust 4, screw 5, nut 6, conducting terminal 7, lead 8.Metallic conductor 1 forms through bending, short end of metallic conductor 1 links to each other with the sponge 2 of absorption conducting liquid, insulating sleeve 3 is enclosed within outside metallic conductor 1 short a section and the sponge 2, insulation crust 4 is enclosed within metallic conductor 1 a section than length, the sweep that metallic conductor 1 is insulated outside sleeve 3 and insulation crust 4 coverings covers insulating paint or cabinet, be positioned at the long end of metallic conductor 1 of insulation crust 4, draw with lead 8.

The outside that described metallic conductor 1 is insulated the sweep outside sleeve 3 and insulation crust 4 coverings has the pit that can let go and refer to.

Angle between the part of described metallic conductor 1 bending is 90-180 °.

Sponge 2 is cylinders, fill in the insulating sleeve 3 after need making the certain conducting liquid of its absorption when carrying out impedance or resistance detection since sponge 2 adsorbed conducting liquid after volume become big, the one end will be exposed at about the about 1-5mm in the insulating sleeve outside.Insulation crust 4 is enclosed within that long section of metallic conductor 1 sweep, the part that metallic conductor 1 is insulated outside sleeve 3 and insulation crust 4 coverings covers with insulating paint or cabinet, is insulating between the tester of feasible hand-held electrode and the testee.Conducting terminal 7 one ends have a hole, closely are connected with metallic conductor 1 with nut 6 by screw 5.Conducting terminal 7 other ends and lead 8 welding or coil buckling are together.

During use, to be fixed on the testee body surface and connect relevant checkout equipment with the supporting reference electrode of this electrode, to fill in the insulating sleeve again behind a certain amount of conducting liquid of sponge taking-up absorption, the tester holds the insulation crust of hand-held probe, forefinger or thumb are placed on metallic conductor knee recess top, resistance or impedance that the position that hand-held probe sponge and testee need be tested contacts and just can measure this position.

The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.

Claims

1, is used for the hand-held probe of impedance or resistance detection, it is characterized in that: comprise metallic conductor (1), sponge (2), insulating sleeve (3), insulation crust (4); Metallic conductor (1) forms through bending, short end of metallic conductor (1) links to each other with the sponge (2) of absorption conducting liquid, insulating sleeve (3) is enclosed within outside metallic conductor (1) short a section and the sponge (2), insulation crust (4) is enclosed within metallic conductor (1) a section than length, the sweep that metallic conductor (1) is insulated outside sleeve (3) and insulation crust (4) covering covers insulating paint or cabinet, be positioned at the long end of metallic conductor (1) of insulation crust (4), draw with lead (8).

2, the hand-held probe that is used for impedance or resistance detection according to claim 1 is characterized in that: the outside that described metallic conductor (1) is insulated the sweep outside sleeve (3) and insulation crust (4) covering has the pit that can let go and refer to.

3, the hand-held probe that is used for impedance or resistance detection according to claim 1 is characterized in that: the angle between the part of described metallic conductor (1) bending is 90-180 °.