[go: up one dir, main page]

WO2009047198A1 - Dispositif de distribution de fluides pour usage médical - Google Patents

Dispositif de distribution de fluides pour usage médical Download PDF

Info

Publication number
WO2009047198A1
WO2009047198A1 PCT/EP2008/063209 EP2008063209W WO2009047198A1 WO 2009047198 A1 WO2009047198 A1 WO 2009047198A1 EP 2008063209 W EP2008063209 W EP 2008063209W WO 2009047198 A1 WO2009047198 A1 WO 2009047198A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
outlet
inlet
storage reservoir
reservoir
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/EP2008/063209
Other languages
English (en)
Inventor
Sergio Marcellini
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
Publication of WO2009047198A1 publication Critical patent/WO2009047198A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/02—Sprayers or atomisers specially adapted for therapeutic purposes operated by air or other gas pressure applied to the liquid or other product to be sprayed or atomised
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
    • A61M2205/3389—Continuous level detection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0618—Nose
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0662—Ears

Definitions

  • Dispenser device of fluids for medical use of fluids for medical use.
  • the present invention relates to a dispenser device of fluids for medical use.
  • the device of the invention is especially suitable for the ventilation of the pharyngotympanic tubes and for the treatment and prevention of eustachian pathologies.
  • the device of the invention is also useful to introduce liquids in the human body.
  • the pharyngotympanic tube is the only natural channel between nose and middle ear and its function is to constantly balance the pressure of the tympani cavity with the specific atmospheric pressure.
  • the pathology of pharyngotympanic tubes mainly affects patients during their early childhood, numerous adults suffer from this pathology for the rest of their lives. Moreover, the said pathology affects individuals subjected to rapid changes of the atmospheric pressure, such as scuba divers, aviators or airplane passengers.
  • the pathologies of the pharyngotympanic tube and their consequences at middle ear level secretory otitis media, catarrhal otitis, glue- ear
  • the mechanical eustachian ventilation is a very useful measure for prompt recovery.
  • the periodical mechanical ventilation of the pharyngotympanic tubes is useful as prevention against otitis in individuals suffering from relapsing or chronic middle ear pathologies.
  • the pressurised air finds the nasopharyngeal cavity, in the back, closed by the velum palatinum (due to the simultaneous deglutition or phonation manoeuvre) and the nostrils, in the front, closed by the doctor's fingers and by the olive, respectively.
  • the pressurised air forces the introitus of the pharyngotympanic tubes and opens them, with consequent ventilation of the tympani cavity.
  • the disadvantages of this method consist in the need of a specialised operator, the risk of being unable to exert a determined pressure value and introduce a constant air volume, since both the air pressure and volume depend on the operator's capacity to compress the pear-shaped bag.
  • the advantage of the said device consists in the fact that the air is produced in one shot, thus reducing the problems related with swallowing or making a sound against pressure.
  • opening can be obtained with a similar mechanism, replacing the pear-shaped bag with a continuous air flow with predefined load inserted in the nose.
  • This method is used both with wall and portable instruments that comprise compressors associated with a nasal applicator. These instruments are impaired by numerous disadvantages: the patient must swallow against a resistance determined by the pressurised air that enters continuously from the nose, thus determining discomfort and lower efficacy: the compressor is not a "one shot" mechanism (in Politzer's bag the air is introduced immediately after the patient starts swallowing or making a sound).
  • the air volume of each single application and the pressure determined on the tubes are not constant (both these parameters depending on the good execution of the manoeuvre by the patient, with the aforementioned drawbacks); moreover, due to their technical configuration, the compressors used for domestic use determine a pulsed air flow, and not a constant one.
  • the purpose of the present invention is to remedy the problems of the known devices and obtain a device characterised by simple, effective, safe use and low cost, which allows for the introduction of a predetermined constant air volume in the patient's nostril in "one shot", and for the introduction of air maintained at a predetermined controlled pressure value with constant (not pulsed) flow.
  • the choice of volume and pressure of the air introduced in the patient's nostrils is the result of a series of clinical tests.
  • the device of the invention is not a simple compressor, being installed downstream a compressor that is simply designed to supply air that will be suitably treated to avoid disadvantages and improve performance.
  • the mechanism of the invention can advantageously use a pressurised air source either integrated inside the device or external and independent from the device (such as an ordinary aerosol nebuliser), with consequent cost reduction.
  • the "one shot" mechanism provided in the device of the invention allows for insertion of a pneumatic injector in the circuit, in such a way to introduce medications in the middle ear.
  • the device of the invention can be used to introduce fluids - and not air - with constant pressure and known volume, for clinical uses, such as removal of pathological or ceruminous secretions from the ear duct.
  • an ear applicator will be used and the bag will be provided with a further inlet and outlet for liquids.
  • the device of the invention (1 ) comprises a storage reservoir (2).
  • the storage reservoir (2) is provided with one inlet (2a) and one outlet (2b); the storage reservoir (2) is filled with air through the inlet (2a), and the air is ejected from the storage reservoir (2) through the outlet (2b) to be conveyed into the patient's nostril.
  • the storage reservoir (2) may have two or more inlets (2a) and two or more outlets (2b).
  • a first valve (3) is connected to the inlet (2a) and a second valve (4) is connected to the outlet (2b).
  • the first valve (3) and the second valve (4) shown in fig. 1 are three-way electrovalves fed by a current generator (5).
  • the first three-way valve (3) is provided with: an inlet (3a), in which air is inflated by means of a compressed air source, for instance an aerosol nebuliser, a first outlet (3b) connected with the opening (2a) of the storage reservoir (2) and a second outlet (3c) connected with the external environment.
  • a compressed air source for instance an aerosol nebuliser
  • the second valve (4) has an outlet (4a) connected to a nasal applicator (6), of known type, a first inlet (4b) connected with the storage reservoir (2) and a second closed inlet (4c) connected with the external environment.
  • the first valve (3) illustrated in fig. 1 is a three-way monostable valve with return spring actuated with electropilot;
  • the second valve (4) illustrated in fig. 1 is a three-way high-flow monostable valve with spring return actuated with electropilot and closed discharge.
  • the storage reservoir (2) is connected with a pressure measurement device (7).
  • the pressure measurement device (7) is used to measure the pressure value of the air inside the storage reservoir (2).
  • the pressure measurement device (7) is a manostat that measures the achievement of a predefined pressure value that can be set by the user according to a particularly advantageous embodiment of the present invention.
  • the pressure measurement device (7) that is to say the manostat, sends a control signal to the first valve (3) that switches between the first outlet (3a) and the second outlet (3c), meaning that the first valve (3) stops supplying air to the storage reservoir (2) through the first outlet (3b), and discharges the excess air outside through the second outlet (3c).
  • Figure 1 illustrates a control means (8) used to open/close the second valve (4).
  • the said control means (8) is a button that actuates a switch.
  • the first line (9) is always connected to one pole of the first valve (3) and of the second valve (4).
  • the second valve (10) is divided into two additional lines (11 , 12).
  • the line (1 1 ) which is sectioned by the button that actuates a switch of the control means (8), powers the second pole of the second valve (4);
  • the line (12) which is sectioned by the switch of the pressure measurement device (7), that is to say the manostat, powers the second pole of the first valve (3).
  • the device of the invention (1 ) illustrated in fig. 1 and described above operates in the following way.
  • Air is blown inside the storage reservoir (2) through the first valve (3) until a preferred pressure value measured by the pressure measurement device (7) is reached.
  • the pressure measurement device (7) sends a control signal to the first valve (3) closing the circuit on the line (12), the first valve (3) switches between the first outlet (3a) and the second outlet (3c) interrupting the air supply to the storage reservoir (2) when a preferred pressure value is reached.
  • the user holds a sip of water in his/her mouth and inserts the nasal applicator (6) in one nostril, closing the other nostril with a finger of the hand used to hold the nasal applicator (6).
  • the control means (8) that is to say pushes the button closing the circuit on the line (11 ) that opens the second valve (4), thus making the air contained in the storage reservoir (2) flow into the nasal applicator.
  • the air that comes out finds the nasopharynx closed on the bottom by the palatine uvula due to deglutition and the nose in the front closed in one nostril by the device used to introduce air and in the other nostril by one finger of the hand that holds the nasal applicator (6); therefore it forces the tubes and penetrates the tympanic cavities.
  • the ventilation device (1 ) can be configured in such a way that the storage reservoir (2) is emptied either completely or partially, according to the patient's requirements.
  • the ventilation device (1 ) comprises a pump to fill the storage reservoir (2); in this way the device (1 ) is able to operate autonomously.
  • the device of the invention (1 ) can be associated with a aerosol nebuliser, as an accessory, with a lower cost.
  • the ventilation device (1 ) comprises a display situated, for instance, on the storage reservoir (2), which shows the pressure value of the air contained in the storage reservoir (2).
  • the ventilation device (1 ) is provided, downstream the pressure measurement device (7), with a LED that turns on when the preferred pressure value of the air contained in the storage reservoir (2) is reached.
  • Fig. 2 illustrates an exclusively pneumatic embodiment of a device (101 ) of the invention, in which the electrical parts have been eliminated.
  • the two electrovalves have been replaced by two mechanical valves (103, 104).
  • the first valve (103) comprises an inlet (3a) connected with the outside and designed to be connected with an air dispenser and an outlet (3b) connected to the inlet (2a) of the reservoir (2).
  • the valve (103) is a pressure relief valve and is provided with a mechanical pressure relief device (130) designed to be adjusted by the user or set at a predefined pressure value, preferably equal to 0.5 bar.
  • the second valve (104) comprises an inlet (4b) connected to the outlet (2b) of the reservoir (2) and an outlet (4a) connected to the nasal applicator (6).
  • the valve (104) is mechanically actuated by a button (108) that opens/closes the hydraulic circuit between the inlet (4b) and the outlet (4a).
  • the valve (104) is a monostable valve with spring return.
  • the hydraulic circuit between the inlet (4b) and the outlet (4a) is normally closed by a shutter actuated by a spring. By pressing the button (108) the hydraulic circuit between the inlet (4b) and the outlet (4a) is opened, against the action of the spring.
  • Fig. 3 illustrates an embodiment (201 ) of the device of the invention, in which the mechanical device of Fig. 2 has been adapted to dispense liquids, such as for ear washing.
  • the device (201 ) comprises an inlet tap for the liquid (221 ) provided on the upper wall of the reservoir (2) and an outlet tap for the liquid (222) provided on the bottom wall of the reservoir (2).
  • the reservoir (2) can be either completely or partially filled with a liquid (L) through the inlet tap (221 ).
  • Fig. 3 illustrates the situation in which some air (A) is contained in the upper part of the reservoir (2).
  • a fill gauge (223) measures the level of liquid (L) in the reservoir (2).
  • the user simply needs to open the outlet tap (222) and eventually introduce air through the valve (103) and/or liquid through the inlet tap (221 ).
  • the inlet (4b) of the second valve (104) is connected to a small hose (240) that passes through the outlet (2b) of the reservoir (2) and is provided with an opening (241 ) that draws the bottom of the reservoir (2).
  • the outlet (4a) of the second valve (104) is connected to an ear applicator (206) designed to be inserted into the patient's ear.
  • Fig. 3 illustrates a merely mechanical embodiment
  • the dispenser device of liquids can be also used in an electronic embodiment, such as the one of Fig. 1.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

La présente invention concerne un dispositif de distribution (1) de fluides comprenant un applicateur nasal/auriculaire (6) et un réservoir de stockage d'air pressurisé (2), qui est doté d'une entrée (2a) et d'une sortie (2b) d'air, les deux étant dotées de valves correspondantes (3, 4) qui permettent de prédéterminer et de contrôler la pression, l'écoulement et la vélocité du fluide introduit dans l'applicateur nasal/auriculaire (6).
PCT/EP2008/063209 2007-10-08 2008-10-02 Dispositif de distribution de fluides pour usage médical Ceased WO2009047198A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMC2007A000192 2007-10-08
ITMC20070192 ITMC20070192A1 (it) 2007-10-08 2007-10-08 Dispositivo per la ventilazione delle tube di eustachio.

Publications (1)

Publication Number Publication Date
WO2009047198A1 true WO2009047198A1 (fr) 2009-04-16

Family

ID=40260730

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/063209 Ceased WO2009047198A1 (fr) 2007-10-08 2008-10-02 Dispositif de distribution de fluides pour usage médical

Country Status (2)

Country Link
IT (1) ITMC20070192A1 (fr)
WO (1) WO2009047198A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130178716A1 (en) * 2012-01-11 2013-07-11 La Diffusion Technique Francaise Device for applying a pneumatic pressure stimulus in the nasal fossae and eustachian tube at the time of deglutition

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316184A (en) * 1928-07-14 1930-02-27 Albert Marie Leopold Vallet Portable apparatus for spraying or atomizing liquids
US4321953A (en) * 1979-01-16 1982-03-30 Gisela Grothoff Method of discharging and applying flowable media
US5645113A (en) * 1994-01-04 1997-07-08 Adolf Wurth Gmbh & Co. Kg Refillable distributing container, filling device and process for filling the distributing container
WO2006030110A1 (fr) * 2004-09-08 2006-03-23 Jean-Michel Rastel Couvercle pour systeme de pulverisation multi-reservoir dote d’un organe de pressurisation type valve de pneu de vehicule
WO2007000190A1 (fr) * 2005-06-29 2007-01-04 Maquet Critical Care Ab Barrière de diffusion dans un appareil de distribution destiné à des liquides médicaux sous pression

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316184A (en) * 1928-07-14 1930-02-27 Albert Marie Leopold Vallet Portable apparatus for spraying or atomizing liquids
US4321953A (en) * 1979-01-16 1982-03-30 Gisela Grothoff Method of discharging and applying flowable media
US5645113A (en) * 1994-01-04 1997-07-08 Adolf Wurth Gmbh & Co. Kg Refillable distributing container, filling device and process for filling the distributing container
WO2006030110A1 (fr) * 2004-09-08 2006-03-23 Jean-Michel Rastel Couvercle pour systeme de pulverisation multi-reservoir dote d’un organe de pressurisation type valve de pneu de vehicule
WO2007000190A1 (fr) * 2005-06-29 2007-01-04 Maquet Critical Care Ab Barrière de diffusion dans un appareil de distribution destiné à des liquides médicaux sous pression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130178716A1 (en) * 2012-01-11 2013-07-11 La Diffusion Technique Francaise Device for applying a pneumatic pressure stimulus in the nasal fossae and eustachian tube at the time of deglutition

Also Published As

Publication number Publication date
ITMC20070192A1 (it) 2009-04-09

Similar Documents

Publication Publication Date Title
KR101566560B1 (ko) 코 세척 장치
US8343114B2 (en) Nasal rinse tip
KR0180902B1 (ko) 흡입 장치
US3669101A (en) Device for the rinsing of body cavities
US3537448A (en) Therapeutic intermittent positive pressure respirator
JP6734196B2 (ja) 鼻灌注アセンブリーおよびシステム
US6520931B2 (en) Medical instrument
CN104284688B (zh) 包括双泵的冲洗系统
WO2000023134A1 (fr) Regulateur d'oxygene et dispositif de conservation combines
US2280992A (en) Apparatus for treating nasal organs
PT1455695E (pt) ''aparelho de recolha de fluido''
ATE342743T1 (de) Anschlussventil für eine magenpumpe
US5443062A (en) Load activated oxygen delivery system
US3885565A (en) Suction drainage control connector
US20180161527A1 (en) Eustachian tube dilation device
WO2009047198A1 (fr) Dispositif de distribution de fluides pour usage médical
US20140054189A1 (en) Nasal flushing device
US20160302972A1 (en) Nasal Air Flow Device
EP4052748A1 (fr) Interface de ventilation de patient destinée à être couplée à un ventilateur médical et à une source de gaz
KR200249514Y1 (ko) 산소흡입용 거치대
CN215022142U (zh) 一种眼部冲洗装置
CN219783152U (zh) 一种鼻咽肿瘤放疗冲洗装置
CN221731549U (zh) 一种洗鼻器
CN113425916A (zh) 一种十字型三腔导尿管
CN118524821A (zh) 用于打开患者的咽鼓管的装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08804995

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08804995

Country of ref document: EP

Kind code of ref document: A1