EP0318789B1 - Sauggerät für Saugelektroden, insbesondere zur Reizstromtherapie - Google Patents

Sauggerät für Saugelektroden, insbesondere zur Reizstromtherapie Download PDF

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Publication number
EP0318789B1
EP0318789B1 EP88119343A EP88119343A EP0318789B1 EP 0318789 B1 EP0318789 B1 EP 0318789B1 EP 88119343 A EP88119343 A EP 88119343A EP 88119343 A EP88119343 A EP 88119343A EP 0318789 B1 EP0318789 B1 EP 0318789B1
Authority
EP
European Patent Office
Prior art keywords
pressure
suction
suction device
ring
disc
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP88119343A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0318789A1 (de
Inventor
Gotthold Sieber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT88119343T priority Critical patent/ATE72961T1/de
Publication of EP0318789A1 publication Critical patent/EP0318789A1/de
Application granted granted Critical
Publication of EP0318789B1 publication Critical patent/EP0318789B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H9/00—Pneumatic or hydraulic massage
    • A61H9/005—Pneumatic massage
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H9/00—Pneumatic or hydraulic massage
    • A61H9/0007—Pulsating

Definitions

  • the invention relates to a suction device for suction electrodes, in particular for stimulation current therapy, which comprises a pressure pump for generating a negative pressure in the respective suction electrode, which pressure pump is connected via a pressure line to at least one suction electrode.
  • Suction devices of this type which work with a pressure relief valve in the pressure line for setting a constant pressure.
  • these devices can also contain a throttle with a valve connected in parallel in the pressure line. By alternately opening and closing the valve, the suction electrodes connected to the pressure line can alternately be supplied with the full pressure or the throttled pressure. This leads to the desired suction massage effect.
  • a suction device of the type mentioned is known, the pressure line of which contains a total of three valves. Two of these valves are designed as mechanical pressure adjustment valves, ie the pressure can be varied continuously with valves of this type.
  • the third valve is designed as a solenoid valve, ie this valve can only be opened or closed completely via an electromagnet armature, which corresponds to a pneumatic switch. Consequently, the pressure in the pressure line cannot be varied with the known electromagnetic valve - without the additional two mechanical pressure adjustment valves.
  • the solenoid valve which acts as a pneumatic switch, is arranged between the pressure line and the mechanical pressure adjustment valve set to minimum pressure. By electrically opening and closing the solenoid valve, the pressure can only be switched between the mechanically adjusted basic pressure and the maximum pressure. If the pressure is to be switched between other minimum and / or maximum pressure values, the pressure adjustment valves must be adjusted mechanically. A change of these pressures electrically by the solenoid valve is not possible with this known suction device.
  • the object of the present invention is to construct a suction device of the type mentioned at the beginning, in which the basic pressure and, if appropriate, massage pressure can be set or regulated with even simpler technical means and even more controllably than before.
  • a single electromagnetic armature is now used to set preselectable constant pressures and / or to perform a suction massage.
  • the different pressures or pressure fluctuations can be specified in a simple manner by setting or changing the magnet armature coil current.
  • the basic pressure is predetermined by the weight of the electromagnetic armature.
  • the suction device comprises a pressure pump 1, which, driven by a motor 2, sucks air from the environment via a pre-filter 3 with air intake 4.
  • the air drawn in passes through a post-filter 5 into the pressure line 6 with the device-side line outlet 7.
  • At least one is on the device-side line outlet 7 via an electropneumatic cable 8 a suction electrode 9 is connected (usually the device comprises several such line outputs for connecting a plurality of suction electrodes via corresponding pneumatic cables).
  • the suction electrode 9 works on the ejector principle. It accordingly comprises a through-channel 10 which narrows like a nozzle at point 11.
  • the housing 13 of the suction electrode 9 comprises an opening 14 on the application surface in which, for example, an electrode 15 is located.
  • the electrode 15 is used for supplying or also for discharging electrical currents from the patient's body. In the present case, this electrode 15 is used, for example, to supply an excitation current to a patient.
  • the electrode 15 is connected via an electrical line 16 in the pneumatic cable 8 to an electrical stimulation device only shown in the form of a block 17 in FIG.
  • a pressure adjusting valve 18 pressure relief valve
  • the pressure adjustment valve 18 consists of a metal block 19 with an inner bore 20, into which an O-ring 21 made of elastic material, for example silicone rubber, is inserted.
  • the coil winding for the excitation current of the electric lifting magnet is indicated at 25.
  • the coil winding 25 is connected to control electronics 26, which is supplied by a power supply unit 27, which, for example, also feeds the motor 2 for the pressure pump 1.
  • the selection of the respective pressure mode or pressure amplitude on the control electronics 26 takes place via rotary or key switches or sliding contacts of a potentiometer (see also FIG. 3), the operating elements of which are indicated in FIG. 1 with the reference numbers 28 and 29.
  • the pressure adjustment valve 18 is shown enlarged in Figure 2 for clarity. It can be clearly seen from FIG. 2 that the disk 22 has a diameter D such that on the one hand it covers the upper part of the O-ring 21 in a sealing manner and on the other hand as little resistance as possible when air escapes (indicated by arrows 30, 31) opposed. Furthermore, it can be seen in FIG. 2 that the armature 24 of the electric lifting magnet comprises a plunger 23, which has a punctiform contact surface 34 on the plunger end 32 seated on the disk 22 due to the corresponding rounding 33. The plunger 23 also sits with the punctiform contact surface 34 centrally on the disk 22 relative to the O-ring 21. The punctiform centric seating results in a defined characteristic of the pressure adjustment valve 18.
  • the pressure adjustment valve 18 is oriented vertically so that the armature 24 presses fully with the plunger 23 on the disk 22. When the excitation current is zero, the armature weight lies on the disk 22. The armature weight lying in this state supplies the basic pressure P O in the inner bore 20 or in the pressure line 6.
  • pressure fluctuations P ⁇ can now be fed in in addition to the basic pressure P O. This takes place in such a way that a pulsating excitation current, the amplitude of which can be set on the control element 29, is supplied to the coil winding 25 of the armature 24 via the control electronics 26 after appropriate selection via the control elements 28, 29.
  • the armature 24 is thereby deflected in a correspondingly pulsating manner. He presses with his plunger 23 accordingly pulsating on the disc 22, which then the pressure fluctuations over the transmits inner bore 20 in the pressure line 6. From there, the pulsating pressure fluctuations are then transferred to the suction electrode 9.
  • the negative pressure in this suction electrode fluctuates accordingly and the tissue at the application site where the suction electrode is sucked is massaged to a greater or lesser extent in accordance with the pulsations.
  • the inputs of the control electronics 26 connected to the power supply unit 27 are indicated by 35 and 36 in FIG. 3 (likewise in FIG. 1).
  • the circuit arrangement comprises four operational amplifiers OP1 ... OP4.
  • the components R1 ... R26 are ohmic resistors, the resistors R4, R19, R22 being designed as potentiometers.
  • the components C1, C2 are capacitors and the component Z1 is a zener diode. Two diodes are labeled D1, D2.
  • T1 is an output stage transistor and 24 is the coil winding of the solenoid.
  • a total of three switch positions a, b, c can be set by means of a three-stage rotary switch S1 ... S3 (adjustable via control element 28).
  • the control electronics 26 and thus the suction device operate in a first mode of suction massage operation (“suction massage fast”).
  • switch position b the control electronics 26 and thus the suction device operate without suction massage.
  • switch position c there is a second mode of suction massage ("suction massage slow").
  • Switch S1 ... S3 thus defines the following operating modes as rotary switches: "Suction massage fast" (switch position a), "Without suction massage” (switch position b) and "Suction massage slow” (switch position c).
  • the suction massage frequency is generated by the operational amplifier OP1.
  • the operational amplifier OP2 processes the triangular voltage U1 taken off at the input of the operational amplifier OP1 by overdriving in e.g. a trapezoidal voltage U2.
  • the value of the resistor R17 determines the desired trapezoidal shape.
  • the network of ohmic resistors R1 ... R6 alone determines the size of the control voltage at the positive input of the operational amplifier OP4 during operation with suction massage (switch positions a and c of the rotary switch S1 ... S3).
  • resistors R7 and R8 are switched on.
  • the control voltage on the wiper of the resistance potentiometer R4 is removed.
  • the grinder is adjusted by means of the control element 28.
  • the operational amplifier OP3 is used as an impedance converter for non-reactive measurement of the control voltage.
  • the operational amplifier OP4 serves as a driver for the output stage transistor T1. Both are negative feedback.
  • the resistor R21 provides variable feedback in order to be able to compensate for scattering of all subsequent electrical and electromechanical components.
  • the diode D1 suppresses switching peaks at the collector of the output stage transistor T1.
  • the diode D2 is used to linearize the square I / P characteristic of the solenoid.
  • the maximum pressure results from the performance of the pressure pump 1 and the nozzle properties of the suction electrodes 9.
  • the lifting magnet controlled by the current, must exert a certain force on the pressure adjusting valve 18.
  • the limit values a) and d) cannot be exceeded or undershot both without and with suction massage. It is therefore necessary to add the suction massage amplitude to the minimum pressure when the pressure regulator is closed and to subtract it from the maximum pressure when the pressure regulator is open. In addition, the suction massage amplitude should increase as the pressure regulator is turned up.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Massaging Devices (AREA)
  • Reciprocating Pumps (AREA)
  • Magnetic Treatment Devices (AREA)
EP88119343A 1987-12-04 1988-11-21 Sauggerät für Saugelektroden, insbesondere zur Reizstromtherapie Expired - Lifetime EP0318789B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88119343T ATE72961T1 (de) 1987-12-04 1988-11-21 Sauggeraet fuer saugelektroden, insbesondere zur reizstromtherapie.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8716080U DE8716080U1 (de) 1987-12-04 1987-12-04 Sauggerät für Saugelektroden, insbesondere zur Reizstromtherapie
DE8716080U 1987-12-04

Publications (2)

Publication Number Publication Date
EP0318789A1 EP0318789A1 (de) 1989-06-07
EP0318789B1 true EP0318789B1 (de) 1992-03-04

Family

ID=6814783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119343A Expired - Lifetime EP0318789B1 (de) 1987-12-04 1988-11-21 Sauggerät für Saugelektroden, insbesondere zur Reizstromtherapie

Country Status (3)

Country Link
EP (1) EP0318789B1 (es)
AT (1) ATE72961T1 (es)
DE (2) DE8716080U1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8301265B2 (en) 2007-09-10 2012-10-30 Medtronic, Inc. Selective depth electrode deployment for electrical stimulation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710962B1 (fr) * 1993-10-07 1995-11-24 Lpg Systems Electro-vanne et nouveau type d'appareil de massage mettant en Óoeuvre une telle électro-vanne.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51148283A (en) * 1975-06-14 1976-12-20 Mamoru Kawaguchi Blood circulation accelerator
US4428368A (en) * 1980-09-29 1984-01-31 Masakatsu Torii Massage device
US4378804A (en) * 1981-06-17 1983-04-05 Cortese Jr Thomas A Facial treatment device
DE3235025C2 (de) * 1982-09-22 1994-05-11 Erbe Elektromedizin Saugeinrichtung zur Applikation von Saugelektroden und zur Saugmassage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8301265B2 (en) 2007-09-10 2012-10-30 Medtronic, Inc. Selective depth electrode deployment for electrical stimulation

Also Published As

Publication number Publication date
ATE72961T1 (de) 1992-03-15
DE8716080U1 (de) 1989-03-30
EP0318789A1 (de) 1989-06-07
DE3868874D1 (de) 1992-04-09

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