Surgery: kinesitherapy – Kinesitherapy – Vibrator
Reexamination Certificate
2001-07-12
2003-04-15
Freay, Charles G. (Department: 3746)
Surgery: kinesitherapy
Kinesitherapy
Vibrator
C601S150000, C601S149000, C601S151000, C417S244000, C417S557000, C092S099000, C092S140000
Reexamination Certificate
active
06547749
ABSTRACT:
FIELD OF THE INVENTION
The invention is directed to a medical device and method to apply repetitive compression forces to the body of a person to aid blood circulation, loosening and elimination of mucus from the lungs of a person and relieve muscular and nerve tensions.
BACKGROUND OF THE INVENTION
Clearance of mucus from the respiratory tract in healthy individuals is accomplished primarily by the body's normal mucociliary action and cough. Under normal conditions these mechanisms are very efficient. Impairment of the normal mucociliary transport system or hypersecretion of respiratory mucus results in an accumulation of mucus and debris in the lungs and can cause severe medical complications such as hypoxemia, hypercapnia, chronic bronchitis and pneumonia. These complications can result in a diminished quality of life or even become a cause of death. Abnormal respiratory mucus clearance is a manifestation of many medical conditions such as pertussis, cystic fibrosis, atelectasis, bronchiectasis, cavitating lung disease, vitamin A deficiency, chronic obstructive pulmonary disease, asthma, and immotile cilia syndrome. Exposure to cigarette smoke, air pollutants and viral infections also adversely affect mucociliary function. Post surgical patients, paralyzed persons, and newborns with respiratory distress syndrome also exhibit reduced mucociliary transport.
Chest physiotherapy has had a long history of clinical efficacy and is typically a part of standard medical regimens to enhance respiratory mucus transport. Chest physiotherapy can include mechanical manipulation of the chest, postural drainage with vibration, directed cough, active cycle of breathing and autogenic drainage. External manipulation of the chest and respiratory behavioral training are accepted practices as defined by the American Association for Respiratory Care Guidelines, 1991. The various methods of chest physiotherapy to enhance mucus clearance are frequently combined for optimal efficacy and are prescriptively individualized for each patient by the attending physician.
Cystic fibrosis (CF) is the most common inherited life-threatening genetic disease among Caucasians. The genetic defect disrupts chloride transfer in and out of cells, causing the normal mucus from the exocrine glands to become very thick and sticky, eventually blocking ducts of the glands in the pancreas, lungs and liver. Disruption of the pancreatic glands prevents secretion of important digestive enzymes and causes intestinal problems that can lead to malnutrition. In addition, the thick mucus accumulates in the lung's respiratory tracts, causing chronic infections, scarring, and decreased vital capacity. Normal coughing is not sufficient to dislodge these mucus deposits. CF usually appears during the first 10 years of life, often in infancy. Until recently, children with CF were not expected to live into their teens. However, with advances in digestive enzyme supplementation, anti-inflammatory therapy, chest physical therapy, and antibiotics, the median life expectancy has increase to 30 years with some patients living into their 50's and beyond. CF is inherited through a recessive gene, meaning that if both parents carry the gene, there is a 25 percent chance that an offspring will have the disease, a 50 percent chance they will be a carrier and a 25 percent chance they will be genetically unaffected. Some individuals who inherit mutated genes from both parents do not develop the disease. The normal progression of CF includes gastrointestinal problems, failure to thrive, repeated and multiple lung infections, and death due to respiratory insufficiency. While some patients experience grave gastrointestinal symptoms, the majority of CF patients (90 percent) ultimately succumb to respiratory problems.
A demanding daily regimen is required to maintain the CF patient's health, even when the patient is not experiencing acute problems. A CF patient's CF daily treatments may include:
Respiratory therapy to loosen and mobilize mucus;
Inhalation therapy with anti-inflammatory drugs, bronchodilators and antibiotics for infections;
Oral and intravenous antibiotics to control infection;
Doses of Pulmozyme to thin respiratory mucus;
20 to 30 pancreatic enzyme pills taken with every meal to aid digestion;
a low-fat, high-protein diet;
Vitamins and nutritional supplements; and
Exercise.
A lung transplant may be the only hope for patients with end stage cystic fibrosis.
Virtually all patients with CF require respiratory therapy as a daily part of their care regimen. The buildup of thick, sticky mucus in the lungs clogs airways and traps bacteria, providing an ideal environment for respiratory infections and chronic inflammation. This inflammation causes permanent scarring of the lung tissue, reducing the capacity of the lungs to absorb oxygen and, ultimately, sustain life. Respiratory therapy must be performed, even when the patient is feeling well, to prevent infections and maintain vital capacity. Traditionally, care providers perform Chest Physical Therapy (CPT) one to four times per day. CPT consists of a patient lying in one of twelve positions while a caregiver “claps” or pounds on the chest and back over each lobe of the lung. To treat all areas of the lung in all twelve positions requires pounding for half to three-quarters of an hour along with inhalation therapy. CPT clears the mucus by shaking loose airway secretions through chest percussions and draining the loosened mucus toward the mouth. Active coughing is required to ultimately remove the loosened mucus. CPT requires the assistance of a caregiver, often a family member but a nurse or respiratory therapist if one is not available. It is a physically exhausting process for both the CF patient and the caregiver. Patient and caregiver non-compliance with prescribed protocols is a well-recognized problem that renders this method ineffective. CPT effectiveness is also highly technique sensitive and degrades as the giver becomes tired. The requirement that a second person be available to perform the therapy severely limits the independence of the CF patient.
Artificial respiration devices for applying and relieving pressure on the chest of a person have been used to assist in lung breathing functions, and loosening and eliminating mucus from the lungs of CF persons. Subjecting the person's chest and lungs to pressure pulses or vibrations decreases the viscosity of lung and air passage mucus, thereby enhancing fluid mobility and removal from the lungs. These devices use vests having air-accommodating bladders that surround the chests of persons. Mechanical mechanisms, such as solenoid or motor-operated air valves, bellows and pistons are disclosed in the prior art to supply air under pressure to diaphragms and bladders in regular pattern or pulses. The bladder worn around the thorax of the CF person repeatedly compresses and releases the thorax at frequencies as high as 25 cycles per second. Each compression produces a rush of air through the lobes of the lungs that shears the secretions from the sides of the airways and propels them toward the mouth where they can be removed by normal coughing. External chest manipulation with high frequency chest wall oscillation was reported in 1966. Beck G J.
Chronic Bronchial Asthma and Emphysema. Rehabilitation and Use of Thoracic Vibrocompression, Geriatrics
(1966), 21: 139-158.
G. A. Williams in U.S. Pat. No. 1,898,652 discloses an air pulsator for stimulating blood circulation and treatment of tissues and muscles beneath the skin. A reciprocating piston is used to generate air pressure pulses which are transferred through a hose to an applicator having a flexible diaphragm. The pulsating air generated by the moving piston imparts relatively rapid movement to the diaphragm which subjects the person's body to pulsing forces.
J. D. Ackerman et al in U.S. Pat. No. 2,588,192 disclose an artificial respiration apparatus having a chest vest supplied with air under pressure with an air pump. Solenoid-operated valves contro
Electromed, Inc.
Freay Charles G.
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