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Class 128/205.29 - Particulate filtering


Subclass of Class 128 - Surgery
Definition: Subject matter for filtering solid particles from respiratory
No. of patents: 222
Last issue date: 01/04/2011


1            
NumberTitleIssue Date
7861719High surface area chemical/biological air-purifying filter
Airflow is improved for multi-agent chemical biological air-purifying apparatus by providing a filter module that has multiple filter elements contained within a substantially sealed housing. The housing secures the filter elements in a spaced relation such that the...
01/04/2011
7686018Face mask for the protection against biological agents
The invention relates to a new mask for the protection against biological agents having additional features to improve the efficiency. The mask is in particular equipped with a filtering layer providing outstanding performances against biological agents, with a high...
03/30/2010
7484509Filter and blower unit for breathing masks or bonnets
A direct current motor having a fixed stator coil module and a magnetic rotor that can be rotated around the perimeter of said module and forming an impeller at the same time. The coils, terminal and electric connecting lines as well as upstream motor control and vo...
02/03/2009
7415981Filter pad and protective hood
A filter pad, particularly for a protective hood or smoke mask, has a flow distributor and an adjacent underlying filter layer. The flow distributor, which is impermeable or substantially impermeable to gas, diverts gas flow and directs flow in the underlying filter...
08/26/2008
7404401Water respirator filter
This water respirator filter will allow the individual who is working in dangerous environments to be able to filter air through a water and solid filtering media. The first stage allows the air to pass through the liquid filtering media, such as water, and then pas...
07/29/2008
7363925Gas-treatment devices
An HME for a tracheostomy tube has a flexible outer housing of a gas-permeable material containing an HME element of discrete particles, granules or the like of a hygroscopic material. The particles are contained between the outer housing and an inner wall of a foam...
04/29/2008
7353825Apparatus and techniques for reducing the effects of general anesthetics
An apparatus for reversing inhaled anesthesia, which is configured to be positioned along a breathing circuit or anesthesia delivery circuit, includes a filter for removing one or more anesthetic agents from gases passing therethrough, as well as a component for ele...
04/08/2008
7343918Breathing gas feed assembly for aircraft flight crew, and a stowage box for an emergency breathing mask
A breathing gas feed assembly for the flight crew of an airplane comprises an emergency breathing mask and a stowage box for the mask. The box is adapted to receive the mask diagonally and it is closed by two doors hinged about respective hinge axes situated on two ...
03/18/2008
7335243Modular biosafety containment apparatus and system
The present invention relates to apparatus and systems for isolating hazardous agents and organisms from their handlers and the public. In particular, the present invention relates to modular negative pressure biological containment chambers. ...
02/26/2008
7331344Breathing device
A breathing device for assisting patients to breath by maintaining positive airway pressure during the breathing cycle comprises a breathing channel in fluid communication with an exhaust channel extending from a junction therebetween. A gas inlet is arranged so as ...
02/19/2008
7311102Protective apparel
Apparel suitable for providing protection against noxious agents, wherein the apparel comprises a laminate material that provides a substantially effective barrier against the noxious agents. It is preferred that the laminate material comprises two or more layers, a...
12/25/2007
7275541Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
A breathing circuit comprising first and second conduits, wherein at least one of the conduits is a non-conventional conduit. In an embodiment, a multilumen unilimb breathing circuit has first and second conduits, wherein when the proximal ends of said first and sec...
10/02/2007
7273053Monitoring and control for a laryngeal mask airway device
A reversibly operable motor is mechanically connected to automatically position the piston of an air syringe that is pneumatically connected to the inflatable/deflatable seal ring or cuff of a laryngeal mask airway device (LMA) that is installed in a patient, who is...
09/25/2007
7261105Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
A breathing circuit comprising first and second conduits is disclosed, wherein at least one of the conduits is a non-conventional conduit. A multilumen unilimb breathing circuit is also disclosed having first and second conduits, wherein when the proximal ends of sa...
08/28/2007
7244235Split-night sleep diagnostic system
A split-night sleep diagnostic system is provided for diagnosing and treating sleep apnea in a single night. The diagnostic system includes a blower, a respiratory interface and a conduit connected between the blower and the respiratory interface. Also included is a...
07/17/2007
7237550Respirator containing filter cases
A respirator containing filter cases uses cellular elements or positioning boards provided in filter cases to consistently secure a plurality of particle-shape refillable filter materials in place, to prevent air breathing in through the respirator from forming chan...
07/03/2007
7210476Breathing-speaking valve
The present invention relates to a breathing-speaking valve intended to be used as a speaking valve of patients requiring filtration of inspiration air inhaled via tracheostomas and are mounted on a tracheal tube, which breathing-speaking valve includes a valve hous...
05/01/2007
7192420Ostomy adapter with multiple adhesives for reliable sealing
An adapter arrangement for use with a waste collection construction, for example an ostomy appliance, includes a flange defining a stoma-receiving aperture and a tubular wall extending from the flange. The flange includes first and second opposite surfaces, each hav...
03/20/2007
7178521Adjustable length breathing circuit
A unilimb breathing circuit has a proximal end coupling member, a distal end coupling member, an expiratory tube extending between the proximal and distal end coupling members, and an inspiratory tube extending between the proximal and distal end coupling members. T...
02/20/2007
7171964Instant chemical based flexible oxygen in a non-pressurized flexible or rigid containment system
The invention is a portable, non-pressurized oxygen generation device. A first chamber holds an oxygen liberating chemical, and a catalyst from a second chamber begins the oxygen liberating reaction when the two chemicals mix. The chemicals are pre-measured, and oxy...
02/06/2007
7171967Face mask and method of manufacturing the same
A mask includes a filter layer and a support base supporting the filter layer. The filter layer has first and second complimentary portions that together form a rim, where the first portion is connected to the second portion at first and second seams. The first seam...
02/06/2007
7163334Method and apparatus for mixing fibers
A method of mixing including providing a slurry (26, 126) having a first fiber (14, 114) into a container (20, 120), introducing an agitation fluid (31, 138) into the slurry to cause a mixing motion (38, 138) within the slurry, and...
01/16/2007
7156099Nostril filtering system
A nostril filtering system is described for providing clean, filtered air for breathing in through the nose. The filtering system includes a soft, pliable filter material held in a flexible frame that can be inserted into each nostril of a user. In the case of foul ...
01/02/2007
7152598System and method for providing a breathing gas
Systems and methods of providing a breathing gas are provided. The method includes, for example, sensing a parameter associated with the delivery of a breathing gas, changing a valve position in response to a change in the sensed parameter, determining a breathing s...
12/26/2006
7152600Biohazard mask suitable for civilians
A biohazard mask for civilian use comprises bidirectional HEPA filtering to protect both personal and public health during an outbreak. Several measures are taken to maximize comfort and wearability, such as comfort-fit through a gel seal, anti-fogging protection th...
12/26/2006
7131442Fibrous filtration face mask
A face mask for filtering contaminants from the air. The face mask includes a harness for securing the mask over the nose and mouth of the wearer and a nonwoven fibrous layer attached to the harness. The nonwoven fibrous layer contains at least 40 weight percent the...
11/07/2006
7118608Self-powered, wearable personal air purifier
A self-powered, personally wearable air purifier includes a sequence of packed bed filter media packets having filter media therein of specifically targeted types that will absorb those ambient air pollutants that have been identified as being particularly dangerous...
10/10/2006
7114496Filter cartridge with integrated inhalation and exhalation valves
The present invention is a filter cartridge with integrated inhalation and exhalation valves. The exhalation valve integrated into the filter cartridge prevents unfiltered air from being inhaled. The inhalation valve(s), also integrated into the filter cartridge, ef...
10/03/2006
7107990Portable face protector for protecting human being from poisonous gas and securing visibility
Disclosed is a portable face protector for protecting a human being from poisonous gas and securing visibility, which can be used in an emergency such as a fire, etc. The face protector comprises a visibility securing member having a transparent window, for tightly ...
09/19/2006
7105124Method, apparatus and product for manufacturing nanofiber media
A unified arrangement for providing a unique nanofibrous porous media formed as a chemical compound from a water-soluble polymer combined with a cross-linking agent with a balance of water, which chemical compound prevents the polymer from dissolving in water, inclu...
09/12/2006
7086401Respiratory mask with inserted spacer
A respiratory mask that conforms to N95 performance and other high performance standards with improved air permeability for improved air circulation. The respiratory mask has a mask body and a headband for putting on the respiratory mask to the face of a wearer, the...
08/08/2006
7082944Changeover valve and dual air supply breathing apparatus
A dual air supply breathing apparatus that allows a user to quickly and easily switch between two or more sources of air or compressed gas, such as filtered air from a Powered Air Purifying Respirator (PAPR) and compressed air from a Self-Contained Breathing Apparat...
08/01/2006
7073501Ventilatory stabilization technology
A system for reducing central sleep apnea (CSA) is described in which certain methods of increasing a patient's rebreathing during periods of the sleep cycle are used. By increasing rebreathing during periods of overbreathing, the over-oxygenation which typically re...
07/11/2006
7069931Method of making a filtering face mask that has an exhalation valve attached thereto
A method for making a filtering face mask that comprises providing a fluid-permeable multi-layered mask body comprising a structural supporting layer and a filtration layer, the multi-layered mask body being configured to fit over the nose and mouth of a person and ...
07/04/2006
7063087Filtering system for the protection against biological agents
The invention refers to a filtering system composed by a face mask and a filter against biological agents, joined together by a new connector. The connector joins the filter to the mask in an easy, fast and affective way. The filtering system provides a very high ba...
06/20/2006
7036507Filter mask
The invention provides a filter mask for filtering air inhaled and exhaled from the mouth and nostrils while providing a positive facial lock at all edges of the mask. The filter mask has upper and lower edges which are provided with malleable stiffeners for conform...
05/02/2006
7025060Personal breathing filter
A personal air filtration device has a cylindrical exhalation tube, with a one-way valve thereon. Concentric around the periphery of the exhalation tube and integrally connected to the exhalation tube rearward (proximate the user's mouth) of the one-way valve is a f...
04/11/2006
7013891Respirators
A respirator (1) comprises an inner, oronasal, mask (2) enclosed within an outer, face sealing, mask (3) so as to define a cavity (4) therewith, a screw-threaded air inlet (5) for conducting inhaling air to the interior of the inne...
03/21/2006
7013896Mask with inhalation valve
A mask for use in inhaling a substance includes a mask housing defining a chamber. The housing has an inlet and an outlet communicating with the chamber. A valve is disposed in the inlet and is integrally formed with the housing, such that the valve and the housing ...
03/21/2006
7007691Apparatus and method for humidification of inspired gases
An apparatus and method for humidification of inspired gases, wherein the present invention utilizes moisture from condensed expiratory gases deposited within the outer expiratory tube of a conventional unilimb breathing circuit to humidify oxygen gas (or any other ...
03/07/2006
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