WO2002071550A1 - A plug connection between a male plug of an electrode and a female plug of a wire, a wire connection and a measuring setup - Google Patents

A plug connection between a male plug of an electrode and a female plug of a wire, a wire connection and a measuring setup Download PDF

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Publication number
WO2002071550A1
WO2002071550A1 PCT/DK2002/000139 DK0200139W WO02071550A1 WO 2002071550 A1 WO2002071550 A1 WO 2002071550A1 DK 0200139 W DK0200139 W DK 0200139W WO 02071550 A1 WO02071550 A1 WO 02071550A1
Authority
WO
WIPO (PCT)
Prior art keywords
plug
wire
electrode
encapsulation
female
Prior art date
Application number
PCT/DK2002/000139
Other languages
French (fr)
Inventor
Kim G. Gommesen
Original Assignee
Danmeter A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danmeter A/S filed Critical Danmeter A/S
Priority to JP2002570353A priority Critical patent/JP2004524656A/en
Publication of WO2002071550A1 publication Critical patent/WO2002071550A1/en

Links

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
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/048—Electrodes characterised by a specific connection between lead and electrode
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/271—Arrangements of electrodes with cords, cables or leads, e.g. single leads or patient cord assemblies
    • A61B5/273—Connection of cords, cables or leads to electrodes
    • A61B5/274—Connection of cords, cables or leads to electrodes using snap or button fasteners
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/369—Electroencephalography [EEG]
    • A61B5/377—Electroencephalography [EEG] using evoked responses
    • A61B5/38—Acoustic or auditory stimuli
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/30—Input circuits therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/12—Connectors or connections adapted for particular applications for medicine and surgery

Definitions

  • the invention relates to a plug connection between a male plug of an electrode and a female plug of a wire, said electrode having a central part for attachment to a patient and a plug connection part which is arranged in extension of the central part by means of a transition member, and in which the male plug is secured.
  • the invention moreover relates to a wire connection and a measuring setup.
  • AEP Auditory Evoked Potentials
  • An apparatus for recording AEP is known from the international application no. PCT. DK00/00636.
  • Apparatuses for measuring AEP receive signals from skin electrodes, e.g. skin electrodes of the type described in WO 86/03365. Such electrodes have a male plug which is adapted to be coupled to a female plug that is connected to one end of a wire. The other end of the wire is connected via a plug to the AEP apparatus.
  • skin electrodes e.g. skin electrodes of the type described in WO 86/03365.
  • Such electrodes have a male plug which is adapted to be coupled to a female plug that is connected to one end of a wire. The other end of the wire is connected via a plug to the AEP apparatus.
  • an object of the invention is to provide a plug connection between a male plug of an electrode and a female plug of a wire which ensures a stable connection minimizing the risk of mechanical impacts.
  • the object of the invention is achieved by a plug connection of the type de- fined in the introductory portion of claim 1 , which is characterized in that the female plug is formed with an encapsulation dimensioned such that the contact parts of the male and female plugs can only be connected to each other when the entire male plug of the electrode is inserted into the encapsulation.
  • a particularly expedient way of providing the encapsulation is, as stated in claim 2, that it is formed as a housing having a bottom plate with a side wall protruding from it.
  • the side wall is formed with two slots, one slot of which is adapted to receive a tensile relief on the wire, and the other slot is adapted to receive the transition member.
  • the encapsulation is formed as an integrated part of the wire with tensile relief and its connected female plug, which, in addition to an advantageous manufacturing method, ensures that only electrodes adapted precisely to the female plug of the electrode concerned can be used.
  • the invention also relates to a wire connection and a measuring setup.
  • fig. 1 shows a measuring setup with the plug connection according to the invention
  • fig. 2 shows a plug connection with the plug connection parts according to the invention disassembled
  • fig. 3 shows a cross-section of the plug connection according to the invention in an assembled state.
  • Fig. 1 shows a measuring setup in its entirety comprising a measuring apparatus 1 which is an apparatus for measuring AEP (Auditory Evoked Po- tentials) in the example shown.
  • a wire 2 is connected via a plug 3 to the apparatus, said wire 2 being connected to the outlet of a plug distributor 4 which, as shown, has four inlets and outlets 5, 8, an outlet 8 being connected to a headphone 6 via a plug 7.
  • the three other inlets 5 are connected to skin electrodes 9 via wires 10.
  • the plug distributor includes a wire 2 which connects the AEP apparatus to the plug distributor
  • the measuring setup operates as follows:
  • the electrodes 9 applied to the patient will record AEP signals from the patient, and these signals are transferred to the apparatus 1 which is adapted to process the signals and to display a numeral value in the form of an index on a display arranged on the apparatus, said index being indicative of the anaesthetized state of the patient.
  • the patient's state of anaesthesia may be monitored currently (in real time) so as to ensure that the patient cannot perceive in any way by any senses what is going on around him.
  • AEP monitoring has become ever more popular.
  • Such an apparatus is extremely sensitive to noise and requires correctly adapted cables, in particular between the electrodes and the ap- paratus 1.
  • FIG. 2 is a more detailed view of the electrode 9 with the male plug 13 and the female plug 11 with the wire 10 in a disassembled state. Also shown is an encapsulation 12 which is formed as a housing having a bottom 20 and a cylindrical side wall 21 protruding from the bottom 20. The side wall 21 is formed with slots 18 and 19.
  • the encapsulation 12 is dimensioned to enclose the female plug 11 such that it engages the inner face of the bottom 20, and such that the slot 18 is adapted to the tensile relief 23 of the wire 10.
  • the female plug 11 with mounted housing 12 When the female plug 11 with mounted housing 12 is to contactably engage the male plug 13 of the electrode 15, the female plug 11 with encapsulation 12 is passed downwards over the electrode and a transition member 22 which is arranged in the electrode, and which fits the slot 19 in the side wall 21 , said slot 19 being dimensioned such that it can receive the transition member 22.
  • the transition member 22 connects the contact area of the electrode 9 with male plug 13 to the central part 15 of the electrode. This ensures a tight and mechanically safe connection between the male plug 13 and the female plug 14.
  • fig. 3 is a cross-sectional view of the parts of fig. 2 assembled with the slot 18 of the encapsulation 12 which receives the tensile relief 23.
  • the electrode is provided with a release sheet 17 which may be torn off at a free part 25 of the release sheet 17 shortly before the electrode is applied to the patient.
  • the encapsulation 12 may be formed as a moulded part of the plug 11.
  • transition part 22 of the electrode 15 may have other shapes than the ones shown, provided that the shape can be received in the encapsulation 12.
  • the plug of the electrode may be formed as a female plug that fits a male plug in the plug 11.

Abstract

In a plug connection between a male plug (13) of a disposable electrode (9) and a female plug (11) of a wire, the female plug is provided with an encapsulation (12) in the form of a housing which encloses the female plug of the wire such that the male plug of the electrode can only be connected electrically to the female plug if the male plug of the electrode is inserted completely into the housing (12). The housing (12) may be formed with a bottom plate (20) and a side wall (21), which protrudes from said plate and which may be formed with slots (18, 19) for receiving the wire of the female plug and a transition member (22). The plug connection is expediently useful for wire connections between a measuring apparatus, e.g. of the anaesthesia type, and one or more skin electrodes, or may form part of a measuring setup comprising a measuring apparatus. The invention ensures a firm, stable contact connection between the male plug and the female plug, which is of great importance since even small movements bewteen the male plug and the female plug may cause impacts in a high impedance measuring apparatus.

Description

A plug connection between a male plug of an electrode and a female plug of a wire, a wire connection and a measuring setup
The invention relates to a plug connection between a male plug of an electrode and a female plug of a wire, said electrode having a central part for attachment to a patient and a plug connection part which is arranged in extension of the central part by means of a transition member, and in which the male plug is secured. The invention moreover relates to a wire connection and a measuring setup.
In connection with operations or accidents where patients are anaesthetized (are under anaesthesia), it is imperative currently to check and monitor their state of anaesthesia.
Relative to the classic monitoring where clinical measurements on the patients are performed, such as measurement of blood pressure, measurement of blood gases, recording of heart rate and the like, a further method has been used in recent years, comprising stimulating the patient with acoustic signals, e.g. by transmission of sound from headphones.
During the anaesthesia the patient's reaction to the acoustic signals from the brain is recorded by means of an apparatus which is adapted to record so-called AEP (Auditory Evoked Potentials) signals.
An apparatus for recording AEP is known from the international application no. PCT. DK00/00636.
Apparatuses for measuring AEP receive signals from skin electrodes, e.g. skin electrodes of the type described in WO 86/03365. Such electrodes have a male plug which is adapted to be coupled to a female plug that is connected to one end of a wire. The other end of the wire is connected via a plug to the AEP apparatus.
Since it is very small signals which are processed in the AEP apparatus, it is imperative for the accuracy of the measurement that the wire and its plug, which connects the AEP apparatus to the skin electrodes, are carefully adapted in terms of impedance to the inlet of the measuring apparatus, and that the plug connection between the male and female plugs is very stable so that the two plug parts cannot move relative to each other.
Accordingly, an object of the invention is to provide a plug connection between a male plug of an electrode and a female plug of a wire which ensures a stable connection minimizing the risk of mechanical impacts.
The object of the invention is achieved by a plug connection of the type de- fined in the introductory portion of claim 1 , which is characterized in that the female plug is formed with an encapsulation dimensioned such that the contact parts of the male and female plugs can only be connected to each other when the entire male plug of the electrode is inserted into the encapsulation.
A particularly expedient way of providing the encapsulation is, as stated in claim 2, that it is formed as a housing having a bottom plate with a side wall protruding from it.
For use in connection with the adaptation of the housing to the plug connection it is an advantage if, as stated in claim 4, the side wall is formed with two slots, one slot of which is adapted to receive a tensile relief on the wire, and the other slot is adapted to receive the transition member.
Additionally, it is expedient if, as stated in claim 7, the encapsulation is formed as an integrated part of the wire with tensile relief and its connected female plug, which, in addition to an advantageous manufacturing method, ensures that only electrodes adapted precisely to the female plug of the electrode concerned can be used.
Additional expedient embodiments are defined in the other dependent claims.
As mentioned, the invention also relates to a wire connection and a measuring setup. These inventions are defined in claims 8 and 9.
The invention will now be explained more fully with reference to the embodiment shown in the drawing, in which
fig. 1 shows a measuring setup with the plug connection according to the invention,
fig. 2 shows a plug connection with the plug connection parts according to the invention disassembled, while
fig. 3 shows a cross-section of the plug connection according to the invention in an assembled state.
Fig. 1 shows a measuring setup in its entirety comprising a measuring apparatus 1 which is an apparatus for measuring AEP (Auditory Evoked Po- tentials) in the example shown. A wire 2 is connected via a plug 3 to the apparatus, said wire 2 being connected to the outlet of a plug distributor 4 which, as shown, has four inlets and outlets 5, 8, an outlet 8 being connected to a headphone 6 via a plug 7. The three other inlets 5 are connected to skin electrodes 9 via wires 10. Furthermore, the plug distributor includes a wire 2 which connects the AEP apparatus to the plug distributor
4. The measuring setup operates as follows:
When a patient (not shown in the drawing) in an anaesthetized state receives acoustic signals emitted from the apparatus 1 , the electrodes 9 applied to the patient will record AEP signals from the patient, and these signals are transferred to the apparatus 1 which is adapted to process the signals and to display a numeral value in the form of an index on a display arranged on the apparatus, said index being indicative of the anaesthetized state of the patient.
Hereby, the patient's state of anaesthesia may be monitored currently (in real time) so as to ensure that the patient cannot perceive in any way by any senses what is going on around him.
Previously, it has been a problem that even though the patient was apparently fully anaesthetized, the patient could perceive either by vision or hearing what was going on in connection with an operation, which might have very traumatic repercussions. Since, however, it is known that the last sense that is eliminated under aesthesia is the hearing, which is also the first sense that is activated after anaesthesia, the use of apparatuses for
AEP monitoring has become ever more popular.
Such an apparatus, however, is extremely sensitive to noise and requires correctly adapted cables, in particular between the electrodes and the ap- paratus 1.
Likewise, it is extremely important that the plug connection between the male plug of the electrodes 9 and the female plug of the wires 10 is very stable with respect to avoiding mechanical impacts that may cause move- ments between the male plug of the electrodes 9 and the female plug of the wires 10. Fig. 2 is a more detailed view of the electrode 9 with the male plug 13 and the female plug 11 with the wire 10 in a disassembled state. Also shown is an encapsulation 12 which is formed as a housing having a bottom 20 and a cylindrical side wall 21 protruding from the bottom 20. The side wall 21 is formed with slots 18 and 19.
The encapsulation 12 is dimensioned to enclose the female plug 11 such that it engages the inner face of the bottom 20, and such that the slot 18 is adapted to the tensile relief 23 of the wire 10.
When the female plug 11 with mounted housing 12 is to contactably engage the male plug 13 of the electrode 15, the female plug 11 with encapsulation 12 is passed downwards over the electrode and a transition member 22 which is arranged in the electrode, and which fits the slot 19 in the side wall 21 , said slot 19 being dimensioned such that it can receive the transition member 22. The transition member 22 connects the contact area of the electrode 9 with male plug 13 to the central part 15 of the electrode. This ensures a tight and mechanically safe connection between the male plug 13 and the female plug 14.
Finally, fig. 3 is a cross-sectional view of the parts of fig. 2 assembled with the slot 18 of the encapsulation 12 which receives the tensile relief 23.
It will additionally be seen that the electrode is provided with a release sheet 17 which may be torn off at a free part 25 of the release sheet 17 shortly before the electrode is applied to the patient.
Even though the invention is described in connection with a specific embodiment, nothing prevents it from being modified within the scope defined by the claims. For example, the encapsulation 12 may be formed as a moulded part of the plug 11.
In addition, the transition part 22 of the electrode 15 may have other shapes than the ones shown, provided that the shape can be received in the encapsulation 12.
Also, the plug of the electrode may be formed as a female plug that fits a male plug in the plug 11.

Claims

PATENT CLAIMS
1. A plug connection between a male plug (13) of an electrode (9) and a female plug (11) of a wire, said electrode having a central part (15) for at- tachment to a patient and a plug connection part (16) which is arranged in extension of the central part by means of a transition member (22), and in which the male plug (13) is secured, ch aracterized in that the female plug (11) is formed with an encapsulation (12) dimensioned such that the contact parts of the male and female plugs can only be connected to each other when the entire male plug (13) of the electrode is inserted into the encapsulation (12).
2. A plug connection according to claim 1, characterized in that the encapsulation (12) is formed as a housing having a bottom plate (20) with a side wall (21 ) protruding from it.
3. A plug connection according to claim 2, characterized in that the side wall (21) is cylindrical, and that the side wall is formed with at least one slot (18, 19).
4. A plug connection according to claim 3, characterized in that the side wall is formed with two slots (18, 19), one slot (18) of which is adapted to receive a tensile relief (23) on the wire (10), and the other slot (19) is adapted to receive the transition member (22).
5. A plug connection according to claims 1 -4, cha racterized in that the outer contour of the encapsulation of the electrode sealingly engages the inner surface of the side wall (21).
6. A plug connection according to claims 1 -5, characterized in that the encapsulation (12) is made of a plastics material.
7. A plug connection according to claims 1 -6, characterized in that the encapsulation (12) is formed as an integrated part of the wire with tensile relief and its connected female plug.
8. A wire connection between a measuring apparatus (1) for recording measurement signals from a skin electrode (9) of the disposable type and comprising a plug connection having an encapsulation according to any one of claims 1-7.
9. A measuring setup comprising a measuring apparatus, e.g. of the anaesthesia type, for recording measurement signals from one or more skin electrodes of the disposable type and comprising a plug connection having an encapsulation according to claims 1 - 7.
PCT/DK2002/000139 2001-03-08 2002-03-06 A plug connection between a male plug of an electrode and a female plug of a wire, a wire connection and a measuring setup WO2002071550A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002570353A JP2004524656A (en) 2001-03-08 2002-03-06 Plug connection, wire connection and measurement mechanism between male plug of electrode and female plug of wire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200100381 2001-03-08
DKPA200100381 2001-03-08

Publications (1)

Publication Number Publication Date
WO2002071550A1 true WO2002071550A1 (en) 2002-09-12

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Application Number Title Priority Date Filing Date
PCT/DK2002/000139 WO2002071550A1 (en) 2001-03-08 2002-03-06 A plug connection between a male plug of an electrode and a female plug of a wire, a wire connection and a measuring setup

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JP (1) JP2004524656A (en)
WO (1) WO2002071550A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004052048A1 (en) * 2002-12-03 2004-06-17 Danmeter A/S A signal or communications unit having an attachment means, and use thereof
CN113725663A (en) * 2021-08-25 2021-11-30 浙江普可医疗科技有限公司 Sensor connecting device
CN114246590A (en) * 2020-09-10 2022-03-29 疆域康健创新医疗科技成都有限公司 Electrode plate and connecting wire connected with same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469577A (en) * 1967-03-02 1969-09-30 Beckman Instruments Inc Scalp contacting bioelectrode
US4067321A (en) * 1976-06-29 1978-01-10 Governor Of Tokyo Metropolis Electrodes for electroencephalographic examinations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469577A (en) * 1967-03-02 1969-09-30 Beckman Instruments Inc Scalp contacting bioelectrode
US4067321A (en) * 1976-06-29 1978-01-10 Governor Of Tokyo Metropolis Electrodes for electroencephalographic examinations

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004052048A1 (en) * 2002-12-03 2004-06-17 Danmeter A/S A signal or communications unit having an attachment means, and use thereof
CN114246590A (en) * 2020-09-10 2022-03-29 疆域康健创新医疗科技成都有限公司 Electrode plate and connecting wire connected with same
CN113725663A (en) * 2021-08-25 2021-11-30 浙江普可医疗科技有限公司 Sensor connecting device

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