Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1995-10-23
1998-03-10
Lateef, Marvin M.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
128734, A61N 136
Patent
active
057255636
DESCRIPTION:
BRIEF SUMMARY
The present invention concerns an electronic device for adrenergic stimulation of the sympathetic nervous system concerned with circulation.
Diseases relating to venous/lymphatic stagnation and to the vascular system are extremely common. Epidemiological studies show that thromboembolic disease is the third cause of death in the industrialized countries, for example, and that one in two persons over the age of 30 are suffering from incipient circulatory disorders. Furthermore, all athletes at a medium and high level will benefit from the use of physical methods to improve cellular trophism, to recover quickly after effort and to eliminate edema, hematoma and tendonitis.
Prevention and therapy are usually drugs-based, frequently accompanied by analyses and checks to verify their action. Clinical trials have shown the benefit and also the limitations of these methods, the use of which is very costly and has potential allergic or hemorragic side effects over and above their as yet limited effectiveness.
For this reasons researchers have attempted to develop physical treatment methods as more effective complements to or substitutes for the use of drugs.
Interesting results have been obtained from sequential pneumatic compression using boots to compress and decompress the lower limbs with a rhythm producing an improvement in flow. The use of such boots has given positive results. However, the equipment is complicated to use, is not sterile and its effectiveness is limited by the absence of deep effects.
A number of equipments for stimulating the "Polock" triceps surae are described in the literature but they cannot be used when the patient is awake.
The equipment described in German patent No 976 354 (Gratzel) refers to the stimulation of striated muscle by means of electrical pulses.
French patent No 2 493 437 (Baulande) concerns a method and equipment for stimulating contraction of striated muscles using unidirectional electrical pulses to activate the physiological calf muscle pump. This treatment is based on earlier therapeutic proposals of PROWS and KAKKAR.
However, the Baulande patent does not describe any means for monitoring the effectiveness of the treatment during administration or to protect the patient from hazardous stray electrical currents.
In European patent No 0137007 this applicant describes a device for stimulating the smooth muscles of the vascular tissue in which a high level of safety is provided by filters connected to the parts in contact with the body of the patient and to the power supply of the device. The current is regulated during treatment in accordance with information from sensors placed on the body of the patient (heat, rheological, resistive, myographic, Doppler, etc type sensors).
Clinical trials have shown the originality and the effectiveness of this equipment. However, it does not provide a flexible and reliable way of monitoring the effectiveness of the treatment during its application.
The sensors placed on the body of the patient, although they can indicate the general effectiveness of the treatment, do not enable accurate and instantaneous tracking of the exact evolution of the needs of the patient as the treatment proceeds.
Failing instantaneous monitoring of the effects of the treatment, the latter cannot be continuously adapted to the exact requirements of the patient. As a result the treatment time is often too short or too long and the parameters (in particular the voltage) characterizing the electric pulses travelling through the body of the patient do not entirely match the nature and the intensity of the pain that the patient is suffering.
The present invention aims to alleviate these drawbacks by proposing an electronic device for adrenergic stimulation of the sympathetic nervous system concerned with circulation, this device including means for generating electric pulses between at least two electrodes appropriately disposed on the body of the patient, the current, the voltage, the waveform and the frequency of the electric pulses being variable.
In accordanc
REFERENCES:
patent: 4167189 (1979-09-01), Tachi et al.
Lateef Marvin M.
Schaetzle Kennedy J.
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