Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M13/00—Insufflators for therapeutic or disinfectant purposes, i.e. devices for blowing a gas, powder or vapour into the body
  • A61M13/003—Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand

Definitions

• the concept forming the basis of the present invention resides in the task of realizing an apparatus for influencing the hydro ⁇ dynamic system in the inner of the ear for influencing the endolymph by the intermediary of the perilymphatic fluid.
• the task forming the basis of the present invention is solved in that the apparatus disclosed by way of introduction displays first means for generating a static pressure level, second means for varying the static pressure level, and third means for interconnection of the first and second means with the auditory meatus.
• the apparatus may further include fourth means for realizing communication between the auditory eatus and the middle ear for facilitating transfer of the pressure changes realized in the auditory meatus to the middle ear for influencing the hydrodynamic system of the ear.
• the first means comprise an air pump for generating a desired static pressure level in an air reservoir.
• the second means comprise a valve for reducing the pressure level in the air reservoi , whereupon the pump once again raises the pressure to the desired level.
• the third means comprises a tube beween the air reservoir and an earsplogc- for insertion into the external auditory meatus.
• the fourth means consists of a transmyringeal tube of, for example, Teflon.
• the first and second means are provided with fifth means for regulating the static pressure to a desired level and further means for regulating the frequency of raising and lowering of the static pressure level.
• the pump is a diaphragm pump whose diaphragm is mounted at the end of a piston rod which is reciprocal by means of a motor by the inter ⁇ mediary of a crank connection which is free-running in a direction towards the pressure movement direction of the diaphragm, into which the diaphragm is urged by means of a spring.
• Fig. 1 is a schematic view, partly in section, of an apparatus according to one embodiment of the present invention.
• Fig. 2 shows a graphic curve of the pressure changes realized using an apparatus according to the present invention.
• Fig. 3 is a schematic side elevation of an apparatus according to one embodiment of the present invention.
• Fig. 4 is a schematic top plan view of the embodiment of Fig. 3.
• Fig. 5 is a schematic end elevation from the left of the embodiment shown in Figs. 3 and 4.
• Fig. 6 is a schematic end
• Fig. 7 is a section through the embodiment illustrated in Figs. 3-6.
• Fig. 8 illustrates a graphic curve of the pressure generated by means of the embodiment illsutrated in Figs. 3-7.
• Fig. 9 is a schematic part section of a further embodiment of an apparatus according to the present invention.
• Fig. 10 illustrates a similar schematic part section to Fig. 9, but with the parts involved being in a different position.
• Fig. 11 is a schematic part section of yet a further embodiment of an apparatus according to the present invention.
• Fig..12 illustrates a similar schematic section to Fig. 11 but with the parts in a different position.
• Fig. 13 shows a schematic part section of still a further embodiment of an apparatus according to the present invention.
• Fig. 14 shows a similar schematic part section to Fig. 13, but with the parts in a different position.
• One embodiment of the present invention will be described in greater detail below.
• an apparatus may comprise essentially an air reservoir 1 which, by the intermediary of an input 2, is in communication with the ambient air and whose output 3 is connected to an ear-plug 4 and an air pump 5.
• the input 2 is separated from the output 3 by means of a diaphragm 6.
• the ear-plug 4 is intended, in a per se conventional manner, to be placed in the external auditory meatus.
• the output 3 from the air reservoir 1 may suitably consist of a two-way coupling, of which the first is placed in communication, by the intermediary of a hose 7, with the output 8 from the pump 5, and of which the second is placed in communication with the ear-plug 4 by the intermediary of a hose 9.
• an intake orifice 19 and a delivery orifice 20 are disposed in the housing 11.
• a valve 21 is disposed in the delivery orifice 20 and is urged against the orifice for closure thereof by means of a leaf spring 22.
• a screw 23 is further disposed in the output 8 from the pump 5, by means of which screw the pressure in the hoses 7 and 9 and in the chamber 6a of the air reservoir can be relieved as desired.
• the disk 29 fixedly connected thereto will rotate, like the crank pin 26, whereby the rod 14 will be vertically reciprocated in the pump housing 14 and entrain the membrane 10 and the parts connected thereto.
• the spring 18 and the " elongate hole 28 in the arm 27 entail relatively accurate regulation of the pressure level in the hoses 7, 9 and in the chamber 6a. This pressure level will remain static on condition that the screw 23 is tightened so as to prevent any leakage at the screw. As will be apparent from Fig. 2, the pressure level A can be obtained by actuating the nut 17. If the screw 23 is actuated for reducing the pressure in the hoses 7, 9 and the chamber 6a, the pressure will fall following the pressure curve in Fig.
• a transmyringeal tube of preferably Teflon to the middle ear. From the middle ear, transfer of the pressure changes is effected as good as immediately to the hydrodynamic system of the ear and, in particular, to the perilymphatic fluid, whereby there will be obtained an influence on the endolymphatic pressure since the fluids in the inner ear are incompressible.
• Fig. 8 illustrates the basic pressure which is adjustable using the springs, illustrated in Fig. 5, between the pump housing and the arms on the piston rod with the free stroke gap the modulating pressure being adjustable using the crank radius on the crank disk 59.
• Fig. 9 and 10 illustrate an embodiment of the present invention with a suction intake valve positively controlled by the movement of the crank cheek, Fig. 9 illustrating the pump stroke and Fig. 10 illustrating the suction stroke.
• Fig. 11 and 12 illustrate yet another embodiment with the suction intake valve controlled by excess pressure and partial vacuum in the pump cylinder.
• a free stroke groove is used instead of free stroke gap.
• Fig. 9 illustrates the pump stroke and Fig. 10 the suction stroke.
• crank shaft is turned through
• O PI 90 from its real position clarifying the inlet and outlet roots for the air.
• Fig. 13 and 14 show one embodiment of an extremely practical design.-This embodiment includes valves according to Fig. 11 and 12, 5 but the spring for realizing the pf pressure is placed asymmetrically and provided with an adjustable anchorage. The free stroke gap provides complete freedom for the spring to "buckle up" the diaphragm and thereby create a clearly-determined basic pressure (uninfluenced by the movement of the crank pin).
• the embodiment illustrated in Fig. 10 13 and 14 is extremely simple to reproduce and may readily be set at desired values of basic pressure and modulating pressure.

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• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Heart & Thoracic Surgery (AREA)
• Biomedical Technology (AREA)
• Veterinary Medicine (AREA)
• Animal Behavior & Ethology (AREA)
• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Anesthesiology (AREA)
• Hematology (AREA)
• Acoustics & Sound (AREA)
• Biophysics (AREA)
• Otolaryngology (AREA)
• Psychology (AREA)
• Vascular Medicine (AREA)
• External Artificial Organs (AREA)
• Devices For Medical Bathing And Washing (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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Families Citing this family (11)

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• 1982
  • 1982-01-22 SE SE8200356A patent/SE8200356L/sv not_active Application Discontinuation
• 1983
  • 1983-01-20 EP EP19830900449 patent/EP0099388A1/en not_active Withdrawn
  • 1983-01-20 WO PCT/SE1983/000013 patent/WO1983002556A1/en unknown

Non-Patent Citations (1)

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