DE2323444A1 - Peltier battery exciter for organ of balance in humans - has heat transmitted to metal body inserted in ear passage - Google Patents

Abstract

Apparatus for excitation of the human organs of balance operates by temp. change derived from PELTIER battery and transmitted from a metal body which i interchangeably connected to it and is to be introduced into the ear passage. Pref. the metal body is interchangeably shaped to fit into the ear passage. More partic., a Cu pin of variable size is inserted into the outer ear passage and is connected with is thick end to the cold side of a Peltier battery. The hot side of the battery is water-cooled, and the temp. change is produced by supply of current. Thermal excitation of a damaged organ is obtained.

Description

2323A44

ON THE EXCITATION- DBS MEffSOHLIOIISM ·

enter Terwendaag a Peltier battery

As is well known, one checks the performance and a possible one pathological variation of the two human, unbalanced microorganisms among other things by putting them in a state of excitement. There are essentially three options for this:

1) The organs of equilibrium are stimulated in a physiological way by rotating the body, e.g. B. in a swivel chair or a centrifugal device »

2) The organs of equal measure are excited by the construction of a Temperature difference between the lateral and medial part of a Semicircular canal. This results in a difference in the specific weight of the endolymph filling the semicircular canal between the two lateral and medial part. If the semicircular canal is vertical, Then there is a notation of the endolymph, which is responsible for the receptors of the organ of equilibrium represents the adequate level. The required temperature difference is usually brought about by irrigation of the external auditory gancs with water.

3) The receptors of the organs of equilibrium are galvanic Irritated ways.

All three methods "are unsatisfactory.

Regarding 1) The rotary stimulation methods are easy to do in and of themselves and variably applicable, but have a different part, " that both organs of weight are excited at the same time. In addition, the duration of application of the stimulus is limited, since only acceleration acts as a stimulus and in the case of long-term stimuli Accelerations too high Drehgeechwindjäceiten can be achieved.

Regarding 2) The change in the temperature of the tissue compared to body temperature has so far been achieved by flushing in τβ * accordingly tempered water into the ear canal. Here ·! consists a major disadvantage of the method is that "when injured Eardrum - right here it is

necessary - water and with it pathogens rage can get into the middle ear. Auierde «is the apparatus Expenditure to a high, for scientifically · TJntersuchu-rcgea

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achieve indispensable variability in stimulus size, disproportionate great. The method is only moderately reproducible, since vortices may occur that cannot be calculated in advance of the water can change the temperature output to the tissue.

to 3) A galvanic excitation of the receptors is indeed in the individual Organ of equilibrium possible, but changes the electrical tone deep cell structures in the area of the brain stem, which makes it difficult to make a statement about the actual performance of the individual equilibrium organs.

The device according to the invention reduces the disadvantages of the known methods and achieves the excitation of the equilibrium organs with much more suitable aids. The principle of the method is that of the caloric excitation of the equilibrium organ. The arrangement according to the invention is shown in Fig. 1. in a schematic diagram. A metal plug (3) of variable size (see below) made of copper is inserted into the outer auditory canal (4) and is connected with one thick end (required for high heat capacity) to the "cold side ^{11 of} a Peltier battery (2). The" The warm side "of the Peltier battery has water cooling (1). The change in temperature of the Peltier battery cold side achieved by the power supply (5) is passed on via the Eupfer cone to the tissue of the ear canal and from there to the organ of equilibrium. The temperature at the cone tip is transferred measured an NTC element.

The change in the pin size according to the invention to adapt the same Fig. 2 and 3 show the different auditory canal widths Method A (Fig. 2) the change is effected by tapping different ones Size (1) that has a screw thread with a copper block (2) are connected. This block is in contact with the Peltier battery. In procedure B (Fig. 4) the size adjustment is carried out Push-on sleeves (4 and 4 ') reached.

The type of heat supply described has compared to an injection significant advantages of water.

1) It can be varied more easily and dosed more precisely. The apparatiwe The effort to control the Peltier battery is low, and «] canii through additional components up to the super-programmed. Bausat «expanded will·

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2) It is reproducible, since both the tenon pieces and the StroE strength curve are measurable data.

3) It is also applicable to injuries to the eardrum. , 4 ·) The water cooling of the Peltier battery is used as a circulation cooler constructed, εο the device is transportable. life investigation can then also be carried out on the bed of the 3 patients.

Claims (2)

~ ⁴ ~ 2323U4 EXPECTATIONS: M ^ device for the excitation of the human organ of equilibrium
by a change in temperature, characterized in that this change is caused by a Peltier battery and is transmitted through a metal body which is interchangeably connected to it and to be inserted into the auditory canal. 2) Device and claim 1, characterized in that "that the metal body is designed to be exchangeable for the purpose of adaptation to the ear canal
is according to Fig. 2 and J5. 5098U / 0408