EP2347747A1 - Weste für Hochfrequenz-Oszillation der Thoraxwand (HFCWO) - Google Patents

Weste für Hochfrequenz-Oszillation der Thoraxwand (HFCWO) Download PDF

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Publication number
EP2347747A1
EP2347747A1 EP10305051A EP10305051A EP2347747A1 EP 2347747 A1 EP2347747 A1 EP 2347747A1 EP 10305051 A EP10305051 A EP 10305051A EP 10305051 A EP10305051 A EP 10305051A EP 2347747 A1 EP2347747 A1 EP 2347747A1
Authority
EP
European Patent Office
Prior art keywords
vest
valve
compartments
compartment
air
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.)
Withdrawn
Application number
EP10305051A
Other languages
English (en)
French (fr)
Inventor
Barrett Reed Mitchell
Fabio Lupi
Paolo Gianangeli
Giovanni Poldi
Giulio Malerba
Marco Pontesilli
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP10305051A priority Critical patent/EP2347747A1/de
Priority to CA2786503A priority patent/CA2786503C/en
Priority to ES11701068.6T priority patent/ES2525355T3/es
Priority to PL11701068T priority patent/PL2525761T3/pl
Priority to US13/521,495 priority patent/US20130110018A1/en
Priority to PCT/EP2011/050603 priority patent/WO2011086200A1/en
Priority to EP11701068.6A priority patent/EP2525761B1/de
Publication of EP2347747A1 publication Critical patent/EP2347747A1/de
Withdrawn legal-status Critical Current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
    • A61H23/00—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms
    • A61H23/04—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms with hydraulic or pneumatic drive
    • 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
    • A61H9/0078—Pneumatic massage with intermittent or alternately inflated bladders or cuffs
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/165—Wearable interfaces

Definitions

  • the invention relates in general to a medical device applying repetitive compressions to the body of a human helping her/him to loosen mucus from the lungs and trachea, and improve the blood circulation.
  • the present invention relates to High Frequency Wall Chest Oscillation (HFWCO) therapy systems, especially but not limited to HFCWO therapy systems suitable for use in a hospital or in a healthcare facility and home care use.
  • HFWCO High Frequency Wall Chest Oscillation
  • Irregularities in the normal mucociliary transport system or hyper secretion of respiratory mucus results in an accumulation of mucus in the lungs causing severe medical complications such as hypoxemia, hypercapnia, chronic bronchitis and pneumonia.
  • 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 (COPD), asthma, and immotile cilia syndrome. Exposure to cigarette smoke, air pollutants and viral infections also negatively affect mucociliary function. Post surgical patients, paralyzed persons, long term care bedridden patients, and newborns with respiratory distress syndrome also exhibit reduced mucociliary transport.
  • Chest physiotherapy is a well-known method for treating patients with one or more of the above health conditions.
  • CPT Chest Physical Therapy
  • HFCWO High Frequency Wall Chest Oscillation
  • the prior art document W02009045358 describes a vest connected to a pulsed air generator via a tube.
  • the entrance of the tube in the vest is reversible so the generator can be positioned on both sides of the vest while in use. So the vest receives pulsed air that inflates and deflates it. This helps the mucociliary transport activity.
  • the purpose of the present invention is to propose a device and a method to solve the above efficiency problems found with HFCWO systems according to the prior art.
  • the invention relates to a medical vest for High Frequency Wall Chest Oscillation (HFWCO) treatment, comprising a compartment configured to be successively inflated and deflated to perform repetitive compressions on a user's body, characterized in that said vest further comprises at least one other compartment configured such as the at least two compartments are adapted to be inflated and deflated independent of each other.
  • HFWCO High Frequency Wall Chest Oscillation
  • the present invention will further provide a HFCWO system and a vest that can also be safely used by post surgical patients, without compromising the healing process of their wound and causing them unnecessary pain.
  • the at least two compartments are configured to be deflated independent of each other. In fact, every compartment can be autonomously inflated and deflated. While one or more compartment will be used in a specific treatment, others will not be used. The choice of compartments in use depends primarily on the suitable treatment for the patient, and if he/she has any areas where pressure might cause damage or similar.
  • the back and the front of the vest are configured to be two separate compartments. Furthermore, the back and the front of said vest comprise at least one compartment each.
  • the number of compartments in the front of the vest is independent of the number of compartments in the back of the vest.
  • the size of a first compartment may be independent of the size of a second compartment.
  • the vest comprises control means configured to control the flow of air admitted into the vest.
  • the flow of the air we mean either one of the frequency and/ or the volume or both.
  • a first valve is configured to control the pressured air flow in a first compartment of the vest and a second valve is configured to control the pressured air flow in a second compartment of the vest.
  • Said valves can be integrated in the vest. The valves can also be separate from the vest.
  • said valves are comprised in an apparatus different from the vest and where said valves are connected to the vest by air conducting tubes.
  • At least one of said valves is integrated in the vest and at least one valve is comprised in an apparatus different from the vest and connected thereto.
  • a first valve is configured to control the pressured air flow in a first compartment of the vest
  • a second valve is configured to control the pressured air flow in a second compartment of the vest. At least one of said first and second valve is integrated in the vest.
  • the system also comprises a plurality of valves, where at least one valve is comprised in an apparatus different from the vest and where said valve are connected to the vest by air conducting tubes.
  • a plurality of compartments positioned in a substantially vertical order on the vest when in use, and configured to be subsequently inflated starting with the compartment located the lowest and finishing with the compartment located the highest. This gives the impression of sending pulses through the body of the user starting from the bottom of the vest and moving to the top creating a "push" toward the mouth of the patient to facilitate the expectoration.
  • the inverse order is also relevant to the invention. Furthermore, a combination alternating between the two directions in a back and forward motion is advantageous.
  • the present invention also refers to a medical system for generating air pressure in a vest
  • a medical system for generating air pressure in a vest comprising a vest being at least partially resilient, an air supply configured to send pressured air into at least part of said vest, at least one valve configured to be connected to the air supply at one end and to the vest at another end, where the at least one valve is configured to intercept and to control the pressured air flowing into at least part of said vest.
  • Said vest has at least two compartments configured to be inflated independent of each other.
  • the present invention further relates to a method for generating air pressure in a vest comprising sending pressured air from an air supply into at least part of said vest and connecting at least one valve to the air supply at one end and to the vest at another end, where the at least one valve intercepts and controls the pressured air flowing into at least part of said vest and where said vest comprises at least two compartments being inflated independent of each other.
  • Figure 1 shows an air supply connected to a valve according to the invention.
  • the air supply could for example be a compressor providing compressed air.
  • the compressed air is either continuously provided in a steady stream meaning with a constant flow and volume of air or as pulsed air from i.e. an air pulse generator.
  • the valve connects the air supply to the compartments of the jacket.
  • the valve is driven by a motor connected to a power supply.
  • the valve could also be driven by a magnetic system as described earlier.
  • the valve has several options for controlling the compressed air pushed into it. In the main two, the compressed air is either blocked by a closed valve blocking the flow into the jacket compartments, or allows it through by an open valve, which will inflate the compartments of the jacket connected thereto. Further options will be revealed to the reader later in this document.
  • the jacket compartments of in figure 1 are either fully made of a material that is flexible, or of a combination of resilient parts and rigid parts.
  • the jacket compartments could for example have a rigid material for the exterior part of the jacket and a flexible material for the interior part. This last embodiment is preferred to orientate the compression movements, resulting from inflating the jacket compartments, inwards towards the body of the patient who wears it.
  • Figures 2a and 2b show the valve according to the invention in further details.
  • FIG 2a we see a drawing of the valve cylinder 1.
  • the cylinder 1 is hollow configured to receive a piston 5.
  • the piston is configured to perform a sliding movement along the longitudinal axis of the valve cylinder 1.
  • the cylinder 1 further comprises one or more holes 4 of equal or different sizes.
  • the holes 4 are preferably aligned in two rows, each row having the same number of holes and are substantially facing each other.
  • the cylinder 1 is preferably made of stainless steel.
  • Figure 2b reveals the piston 5 configured to make translational movements along the shared longitudinal axis of the cylinder 1 and the piston 5.
  • the piston 5 is driven by a motor, an opening at one extremity is provided with internal threads to fasten the piston 5 to the mechanical countershaft of the motor (not shown in the figures).
  • the piston 5 is driven by other means that does not require a motor, and the piston 5 has therefore no opening in its extremity.
  • the piston 5 is preferably made of PEEK (Polyether ether ketone). PEEK is a material that enables a continuous lubrication while sliding inside the cylinder 1 to give the minimum level of friction.
  • the piston 5 could be described as having a body 6, a neck 7 and a head 8.
  • the body 6 and the head 8 of the piston 5 have the same diameter while the neck 7 has a diameter that is inferior to the diameter of the body 6 and head 8.
  • the piston 5 is preferably machined from one piece, what is also referred to as a mono-bloc.
  • piston neck 7 can also be provided longitudinally in relation to the piston as a piston recess. In that case, the piston rotates clockwise and anticlockwise instead of up and down.
  • Figure 3 and figure 4 show the assembled valve 10 comprising the valve cylinder 1 and the piston 5.
  • jacket compartments C1, C2 and C3 of the jacket 2 are connected to a first row of holes 4 provided in the valve cylinder 1.
  • the second row of holes 4 is mainly connected to the compressed air supply 3, however with one hole reserved for an outlet connected to the exterior when releasing the compressed air from the compartments C1, C2 and C3 of the jacket 2.
  • the piston 5 is moved to a second position, thereby blocking the passageway between the common outlet of the compartments C1, C2 and C3 of the jacket 2 and the outside with the piston head 8, and opening a passage between the supply 3 of compressed air and i.e. one compartment C3 of the jacket 2 by positioning the piston neck 7 between these respective holes 4 as shown on the figure.
  • the valve 10 allows the compartment C3 of the jacket 2 to be inflated by compressed air.
  • the compartment C3 of the jacket 2 will be alternately inflated and deflated with a frequency depending on the motor connected to the piston 5 or the alternative driving mechanism used to activate the piston 5, for example a woofer.
  • This frequency can be set by the operator of the system as shown in figure 4 .
  • the figure 3 and 4 represent only one embodiment. Other movements of the piston, it is possible to inflate and deflate other compartments either sequentially, simultaneously or as a combination of both. Two compartments could for example be inflated simultaneously. Then while deflating them, a third compartment will be inflated and so on. This would require a different positioning of the holes 4 in the cylinder 1 and a piston 5 with the appropriate proportions.
  • a main valve 10 is connected to several local valves as shown.
  • the local valves are then individually connected to the compartments of the jacket 2.
  • the main valve 10, being physically similar to the local valves, distributes the compressed air flowing in from the air supply 3, to these local valves either by turn, one by one, or still by turn but two or more at a time.
  • the local valves may have their own outlet to connect to the outside and thereby deflating the compartments C1, C2 and C3 of the jacket 2 as such, the outlet of the main valve 10 connected to the outside as seen in figure 5 might not be used. Alternatively, it might be used as a main outlet connecting several local outlets from local valves (not shown).
  • each local valve can be connected to a specific compartment of the jacket 2, independent of and isolated from other compartments.
  • the jacket 2 has two compartments: one front compartment and one back compartment.
  • a separate valve 10 for each compartment it is possible to inflate the front of the jacket 2 independently of the back and vice versa. They could be inflated by turn to create alternating but cooperative compressions. It also becomes possible to inflate only one compartment while keeping the other inactive. This allows a more controllable and focused treatment using the jacket 2.
  • compartments a jacket 2 there is no limit to the number of compartments a jacket 2 might possess. In fact, the more compartments a jacket 2 has, the more personalized and customizable the treatment will be.
  • each valve can be connected to a number of jacket compartments only limited by the number of holes 4 provided in the valve.

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)
EP10305051A 2010-01-18 2010-01-18 Weste für Hochfrequenz-Oszillation der Thoraxwand (HFCWO) Withdrawn EP2347747A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP10305051A EP2347747A1 (de) 2010-01-18 2010-01-18 Weste für Hochfrequenz-Oszillation der Thoraxwand (HFCWO)
CA2786503A CA2786503C (en) 2010-01-18 2011-01-18 Medical vest for high frequency chest wall oscillation treatment
ES11701068.6T ES2525355T3 (es) 2010-01-18 2011-01-18 Chaleco para oscilación de alta frecuencia de la pared torácica (HFCWO)
PL11701068T PL2525761T3 (pl) 2010-01-18 2011-01-18 Kamizelka HFCWO
US13/521,495 US20130110018A1 (en) 2010-01-18 2011-01-18 Hfcwo vest
PCT/EP2011/050603 WO2011086200A1 (en) 2010-01-18 2011-01-18 Hfcwo vest
EP11701068.6A EP2525761B1 (de) 2010-01-18 2011-01-18 Weste für Hochfrequenz-Oszillation der Thoraxwand (HFCWO)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10305051A EP2347747A1 (de) 2010-01-18 2010-01-18 Weste für Hochfrequenz-Oszillation der Thoraxwand (HFCWO)

Publications (1)

Publication Number Publication Date
EP2347747A1 true EP2347747A1 (de) 2011-07-27

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ID=42229288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10305051A Withdrawn EP2347747A1 (de) 2010-01-18 2010-01-18 Weste für Hochfrequenz-Oszillation der Thoraxwand (HFCWO)

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EP (1) EP2347747A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130110018A1 (en) * 2010-01-18 2013-05-02 Christine Y.P.A. MITCHELL Hfcwo vest

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453081A (en) * 1993-07-12 1995-09-26 Hansen; Craig N. Pulsator
US20060135895A1 (en) * 1997-04-11 2006-06-22 Tactile Systems Technology, Inc. Lymphedema treatment system
US20080000477A1 (en) * 2006-03-15 2008-01-03 Huster Keith A High frequency chest wall oscillation system
WO2009045358A1 (en) 2007-10-03 2009-04-09 Electromed, Inc. Portable air pulsator and thoracic therapy garment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453081A (en) * 1993-07-12 1995-09-26 Hansen; Craig N. Pulsator
US20060135895A1 (en) * 1997-04-11 2006-06-22 Tactile Systems Technology, Inc. Lymphedema treatment system
US20080000477A1 (en) * 2006-03-15 2008-01-03 Huster Keith A High frequency chest wall oscillation system
WO2009045358A1 (en) 2007-10-03 2009-04-09 Electromed, Inc. Portable air pulsator and thoracic therapy garment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130110018A1 (en) * 2010-01-18 2013-05-02 Christine Y.P.A. MITCHELL Hfcwo vest

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