WO2015148223A1 - Système de pression thérapeutique - Google Patents

Système de pression thérapeutique Download PDF

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Publication number
WO2015148223A1
WO2015148223A1 PCT/US2015/021323 US2015021323W WO2015148223A1 WO 2015148223 A1 WO2015148223 A1 WO 2015148223A1 US 2015021323 W US2015021323 W US 2015021323W WO 2015148223 A1 WO2015148223 A1 WO 2015148223A1
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WO
WIPO (PCT)
Prior art keywords
pressure system
pressure
therapeutic pressure
actuator
surface comprises
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.)
Ceased
Application number
PCT/US2015/021323
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English (en)
Inventor
David Kane
Michael J. PEDRO
Steven H. CATALDO
Thomas M. Reilly
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Revolutionary Medical Devices Inc
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Revolutionary Medical Devices Inc
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 Revolutionary Medical Devices Inc filed Critical Revolutionary Medical Devices Inc
Publication of WO2015148223A1 publication Critical patent/WO2015148223A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
    • A61H7/001—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for without substantial movement between the skin and the device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/121—Head or neck
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/1235—Arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/1245—Knees, upper or lower legs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/126—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with specific supporting surface
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • 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
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/0138—Support for the device incorporated in furniture
    • A61H2201/0142—Beds
    • 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
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/0138—Support for the device incorporated in furniture
    • A61H2201/0142—Beds
    • A61H2201/0146—Mattresses
    • 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
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/0138—Support for the device incorporated in furniture
    • A61H2201/0149—Seat or chair
    • 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
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic 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
    • 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
    • A61H2201/1623—Back
    • 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
    • A61H2201/1628—Pelvis
    • A61H2201/1633—Seat
    • 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
    • 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
    • A61H2201/1657—Movement of interface, i.e. force application means
    • A61H2201/1664—Movement of interface, i.e. force application means linear
    • 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
    • A61H2201/50—Control means thereof
    • A61H2201/5002—Means for controlling a set of similar massage devices acting in sequence at different locations on a patient
    • 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
    • A61H2201/50—Control means thereof
    • A61H2201/5058—Sensors or detectors
    • A61H2201/5061—Force sensors
    • 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
    • A61H2203/00—Additional characteristics concerning the patient
    • A61H2203/04—Position of the patient
    • A61H2203/0425—Sitting on the buttocks
    • 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
    • A61H2203/00—Additional characteristics concerning the patient
    • A61H2203/04—Position of the patient
    • A61H2203/0443—Position of the patient substantially horizontal
    • 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
    • A61H2209/00—Devices for avoiding blood stagnation, e.g. Deep Vein Thrombosis [DVT] devices

Definitions

  • This invention relates to the field of pressure relief systems to apply or relieve pressure and providing comfort to a patient.
  • the invention has particular utility in connection with hospital bed pads or mattresses and will be described in connection with such utility, although other utilities including boots, socks or cuffs for preventing deep vein thrombosis (DVT s) to be worn by a patient during a surgery, after surgery, as well as sitting chair and wheelchair seat pads, and pressure wraps for the body or extremities arc contemplated.
  • DVD s deep vein thrombosis
  • Pressure ulcers also known as pressure sores, decubitus ulcers and bed sores
  • Pressure ulcers are areas of localised damage to the skin and underlying tissue, believed to be caused by pressure, shear or friction (Allman 1997). They usually occur over bony prominences such as the base of the spine, hips and heels. Pressure ulcers occur in both hospital and community settings, most often in the elderly and immobile (e.g. orthopaedic patients), those with severe acute illness (e.g. patients in intensive care units) and in people with neurological deficits (e.g. with spinal cord injuries). The development of pressure ulcers is relatively common. A review of epidemiological studies in the UK, Canada and the USA describes reported pressure ulcer prevalence in the UK of between 4.4% in a community unit up to 37% in palliative care
  • Hospital beds such as above described are expensive to manufacture and maintain, and have a tendency, due to their design, to be hot, transferring heat to a patient's body, creating an uncomfortable condition for the patient. Also, since current pressure relief systems such as above described require specialized bed frames, they cannot be used with conventional hospital mattresses.
  • the aim of pressure ulcer prevention strategics is to reduce the magnitude and/or duration of pressure between a patient and their support surface (the "interface pressure"). This may be achieved by regular manual repositioning (e.g. "two hourly turning"), or by using pressure-relieving support surfaces such as cushions, mattress overlays, replacement mattresses or whole bed replacements.
  • the cost of these interventions varies widely; from over £30,000 for some bed replacements to less than £100 for some foam overlays.
  • Pressure-relieving cushions, beds and mattresses either mould around the shape of the patient to distribute the patient's weight over a larger area (constant low pressure devices) (CLP), or mechanically vary the pressure beneath the patient, so reducing the duration of the applied pressure (alternating pressure devices) (AP) (Bliss 1993).
  • CLP devices can be grouped according to their construction (foam, foam and air, foam and gel, profiled foam, hammocks, air suspension, water suspension and air- particulatc suspension/ air-fluidised). These devices fit or mould around the body so that the pressure is dispersed over a large area. Alternating pressure devices generate alternating high and low interface pressures between body and support, usually by alternate inflation and deflation of air filled cells. Such devices are available as cushions, mattress overlays, and single-or multi-layer mattress replacements. Turning beds, such as turning frames, net beds, and turning/tilting beds move those patients, either manually or automatically, who are unable to turn themselves.
  • Pressure ulcer prevention is often not the reason for using turning and tilting beds; they may be used in Intensive and Critical Care Units for other reasons, e.g. to promote chest drainage. Why it is important to do this review Health care professionals attempt to reduce the incidence of severe pressure ulcers by the identification of people at high risk and the use of prevention strategies, such as pressure-relieving equipment 1 .
  • a therapeutic pressure system comprising: an array of individually addressable electroactive polymer actuators, each actuator comprising a scaled actuator housing containing an electrolyte, one or more polymer actuators that actuate via movement of electrolyte components into, out of, around or within the polymer matrix of the polymer actuators, an actuator support structure for the polymer actuators, working anode and cathode electrodes in working contact with the actuators, circuitry for connecting the electrodes to a power source, and a controller between the power source and the electrodes to control the electrical current to the electrodes.
  • the present invention provides an improved therapeutic pressures system comprising an array of individually addressable electroactive polymer actuators, including pressure sensors and feedback controls.
  • the present invention provides a therapeutic pressure system comprising a plurality of field individually addressable electroactive polymer actuators formed integrally with or as an overlay to a surface, an array of pressure sensors placed at the surface, and a control for applying a differential voltage between an anode and a cathode of a selected actuator to control a pressure in the actuator.
  • the surface comprises an operating room surgical table.
  • the surface comprises an operating room table arm rest.
  • the surface comprises an operating room table leg support.
  • the surface comprises a bed or mattress or mattress topper.
  • the surface comprises a gurney, or a wheel chair seat or pad.
  • the surface comprises an emergency room table.
  • the surface comprises an operating room ramp and head rest.
  • the actuators are expandable in a range of +/- 0.25" to +/-0.5" (+/- 0.635 cm to +/- 1.27 cm).
  • the actuators are arranged in a matrix 0.5" to 5.0" (1.2 cm to 12.7 cm) apart.
  • the actuators are uniformly spaced along an x and y axis.
  • the control system includes a closed- loop control pressure sensor for each actuator in the array.
  • a therapeutic pressure system comprising a body wrap having a plurality of individually addressable electroactive polymer actuators formed integrally with or as an overlay to a surface, an array of pressure sensors placed at the surface, and a control for applying a differential voltage between an anode and a cathode of a selected actuator to control a pressure in the actuator.
  • FIG. 1 diagrammatically illustrates a therapeutic pressure system in accordance with the present invention
  • FIG. 2 is a schematic diagram of a pressure control system in accordance with the present invention.
  • FIG. 3 diagrammatically illustrates compression of a patient's epidermis.
  • a therapeutic pressure system in accordance with the present invention comprises a planar pressure array 10, preferably comprises m by n individually addressable Electroactive Polymer Actuators (EPA) 12 distributed along the X and Y axis, that displace perpendicular to the X - Y plane by an amount ⁇ ( ⁇ > ⁇ ) , as shown in Fig. 1 .
  • Each actuator 12 comprises a polymer core with a cathode 14 at one surface of a containment shell 16 and an anode 18 on the other surface of the containment shell 16.
  • a pressure sensor 20 is also placed at one surface of the containment shell 16, and is used to control the pressure in the Z direction by varying Z, based on the applied voltage between the anode and cathode.
  • Electroactive Polymer Activators are known in the art. See, for example,
  • Electromechanical Devices Evan Malone, Hod Lipson, Mechanical and
  • Electromechanical Devices Evan Malone, Hod Lipson, Mechanical and
  • Changes in Z may be, for example +/- 0.25" to +/- 0.5" (+/- 0.635 cm to +/- 1.27 cm) from their nominal position.
  • Actuator spacing along the X and Y axis may be, for example, 0.5" to 5.0" (1.2 cm to 12.7 cm), uniformly spaced.
  • the therapeutic pressure system of the present invention may be used as a mattress or pad, or pressure wrap, including a ramp and headrest positioning device such as the AirSPACETM ramp and positioning device available from RMD, Revolutionary Medical Devices, of Arlington, AZ, or an operating table arm or leg support device, an operating or emergency room table, a hospital bed, a gurney, a bed or mattress or other patient rest platform, or a pressure wrap, collectively 24.
  • the actuators 12 in the pressure control array 10 can be driven in an open or closed-loop fashion by a controller 24 such as the Sensor Interface,
  • a preferred closed loop EPA control consists of a negative feedback controller as illustrated in Figure 2, where a pressure command is generated and the associated thickness of the actuator is changed resulting in an associated change in ⁇ .
  • Each actuator 12 is driven to a desired pressure, potentially varying as a function of time.
  • the epidermis 30 acts nominally as a linear spring where the compression, thus the corresponding pressure seen at the epidural surface 32, is proportional to the transmitted force.
  • a force balance example is shown in Fig. 3, where the weight of the patient, W, is supported by three actuators 12 in a linear array 10. Assuming the interface area between each actuator and the patient's epidermis are equal, one approach is to equalize the pressure seen at any location by making the resulting force transmitted by each interface point equal, hi this case the EPA length, ⁇ (1 ,n), would be adjusted until the pressure measured, thus the force applied by each actuator, Fi, F 2 and F 3 would equal W/3 as determined by the commanded pressure, Pzcommand(l,n).
  • the corresponding "spring" length in the epidermis would also adjust based on the reaction force. It may also be desirable to have the pressure, thus the resulting force, applied by each actuator alternate, or vary sinusoidal as a function of time. This would be accomplished by varying the actuator length, ⁇ , in order to massage the cpidcmiis, promoting blood flow.
  • the present invention has several significant advantages over the prior art. These include:
  • Higher bandwidth- conventional mechanical and pneumatic systems have bandwidths that are « 0.1 Hz vs 1 Hz in accordance with the present invention;
  • Higher Reliability- conventional systems have moving parts;
  • an EPA-based active pressure monitor and control array in accordance with the present invention has no moving parts; and
  • Quiet- pneumatics have motor noise for the pump, and mechanical devices have actuator drive noise, while an EPA-based active pressure monitor and control array in accordance with the present invention is silent.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dermatology (AREA)
  • Rehabilitation Therapy (AREA)
  • Epidemiology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pain & Pain Management (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

L'invention concerne un système de pression thérapeutique qui comprend une pluralité d'actionneurs à polymère électroactif accessibles individuellement, formés d'un seul tenant avec un revêtement d'une surface ou en tant que tel, un réseau de capteurs de pression placés au niveau de la surface, ainsi qu'une commande pour appliquer une tension différentielle entre une anode et une cathode d'un actionneur sélectionné de manière à réguler une pression dans l'actionneur.
PCT/US2015/021323 2014-03-26 2015-03-18 Système de pression thérapeutique Ceased WO2015148223A1 (fr)

Applications Claiming Priority (2)

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US201461970780P 2014-03-26 2014-03-26
US61/970,780 2014-03-26

Publications (1)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106344342A (zh) * 2016-08-30 2017-01-25 向红 一种脊柱复位及训练康复器
CN107811800A (zh) * 2017-12-05 2018-03-20 张东明 神经外科用头部固定装置
CN108591785A (zh) * 2018-06-28 2018-09-28 中国船舶重工集团公司第七0七研究所 一种无人艇探测声纳自动收放装置
CN110433056A (zh) * 2019-08-14 2019-11-12 苏州大学附属儿童医院 一种小儿外科手术用头部固定装置
US10507158B2 (en) 2016-02-18 2019-12-17 Hill-Rom Services, Inc. Patient support apparatus having an integrated limb compression device
WO2022084749A1 (fr) * 2020-10-23 2022-04-28 Prohibition X Pte Ltd Matelas intelligent à système d'actionnement adaptatif
US11911174B2 (en) 2016-06-06 2024-02-27 University Of Massachusetts Systems and methods for prevention of pressure ulcers
US11918539B2 (en) 2020-06-10 2024-03-05 Welch Allyn, Inc. Wearable health management system
WO2024224166A3 (fr) * 2023-04-28 2024-12-05 Prohibition X Pte Ltd Matelas intelligent à système d'actionnement adaptatif
EP4570225A1 (fr) 2023-12-11 2025-06-18 Jafari, Seyed Mohammadreza Système et procédé pour fournir un matelas à haute résolution automatisé motorisé et modulaire et ensemble matelas pour les escarres de lit de prévention et de cicatrisation
US12343305B2 (en) 2020-08-12 2025-07-01 Welch Allyn, Inc. Health management system
US12465548B2 (en) 2021-07-01 2025-11-11 Toyota Motor Engineering & Manufacturing North America, Inc. Artificial muscle light weight seat massager and haptic response chair

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US5255303A (en) * 1992-11-17 1993-10-19 Duke University Multi-purpose emergency room trauma board
US5649331A (en) * 1994-06-03 1997-07-22 Span-America Medical Systems, Inc. Self-adjusting pressure relief support system and methodology
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