William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7418965 | Multilumen unilimb breathing circuit with detachable proximal fitting A multilumen unilimb breathing circuit with a detachable proximal fitting for providing respiratory gases to and receiving expiratory gases from a patient. The circuit has unique fittings for connection to patient devices or assisted ventilation systems and componen... | 09/02/2008 |
| 7347203 | Heat and moisture filter exchanger and method A heat and moisture exchanger for both conducting a stream of air produced by a ventilator to a moisturizing medium and internally bypassing the moisturizing medium if aerosolized medication is introduced into the stream includes a housing having a ventilator-side p... | 03/25/2008 |
| 7275541 | Breathing 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 |
| 7261105 | Breathing 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 |
| 7201168 | Non-tracheal ventilation tube A non-tracheal ventilation tube includes a multi-lumen tube shaft having a proximal end and a distal end, a proximal cuff and a distal cuff. The multi-lumen tube shaft is separated into a ventilation channel extending from a proximal ventilation opening to a distal ... | 04/10/2007 |
| 7178521 | Adjustable 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 |
| 7152597 | Breathing circuit adapter An adapter couples a patient's breathing circuit to a ventilator. In the preferred embodiment, the adapter comprises an inhalation conduit having a first end for coupling the adapter to the ventilator and a second end for coupling the adapter to the patient breathin... | 12/26/2006 |
| 7069928 | Heat-moisture exchanger with aerosol by-pass A first and second housing is joined together by a middle housing rotatable with respect to the first and second housing. The first and second housings have conduits passing through exterior walls and an annular ring on an inside wall together with an annular interi... | 07/04/2006 |
| 6948493 | Anaesthetic apparatus An apparatus for delivering anaesthetic to human or animal patients. The apparatus is an anaesthetic machine which is arranged to mount components of an anaesthetic delivery circuit, and which includes a collector arrangement in the form of a manifold having a plura... | 09/27/2005 |
| 6918391 | Multi-lumen endotracheal tube A multi lumen endotracheal tube having a balloon cuff to seal a patient's trachea during intubation. The ET tube having a main lumen for the exchange of respiratory and medicinal gases consequent to a medical procedure, a secondary lumen for inflation of the balloon... | 07/19/2005 |
| 6874500 | Breathing 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... | 04/05/2005 |
| 6807964 | Cold weather breathing device A cold weather breathing device and method. Exhaled air warmed by the lungs of a user is flowed into contact with a heat exchange medium to heat the heat exchange medium. The heat exchange medium is positioned in a hollow body adjacent the chest and under cold weath... | 10/26/2004 |
| 6779522 | Method and apparatus for treating breathing gases A method of making thin-walled permeable tubing using air blown extrusion, and of using the tubing in a device which enables a substantial humidification or drying of patient breathing gases in the breathing lines for patient monitoring or anesthesia results in cost... | 08/24/2004 |
| 6581593 | Universal oxygen connector system An oxygen connector system for coupling an oxygen source to an oxygen tube comprises a source of oxygen. The source has an output orifice through which source oxygen is adapted to pass. The orifice has an inner bore and an outer surface. A flexible cylind... | 06/24/2003 |
| 6564799 | Multilumen filter A multilumen filter device has a housing with first and second filter chambers, each chamber in fluid communication with a separate distal and proximal fluid path. The filter device may be used to provide respiratory gases to and receive expiratory gases ... | 05/20/2003 |
| 6520183 | Double endobronchial catheter for one lung isolation anesthesia and surgery A double endobronchial catheter that is suited for one lung isolation anesthesia and surgery that has an outer sheath that is adapted to be introduced into the patient such that the distal end of the sheath is positioned within the patient and the proxima... | 02/18/2003 |
| 6439231 | Artificial ventilation systems and components thereof, and methods for providing, assembling and utilizing same A method for providing assisted ventilation which avoids hypoxia and hypocapnia in which a predetermined dead space in an assisted ventilation system is provided external to the patient. The method may also be used to create normocapnia or moderate hyperc... | 08/27/2002 |
| 6427692 | Valve A valve, particularly suited for use with a patient ventilation system to regulate respiration gas flow to and from the lungs of a patient has a substantially parallel, co-axial, arrangement of inner and outer fluid flow passages for conducting gas throug... | 08/06/2002 |
| 6397842 | Fluid-treatment devices A catheter mount incorporates a filter pleated along its length in zig-zag fashion. Opposite edges of the filter are sealed between identical upper and lower parts of a housing between teeth extending along opposite sides.... | 06/04/2002 |
| 6237596 | Disposable mask and suction catheter A disposable mask and suction catheter includes a mask having a front side and a back side, the back side being disposed in contact with a user's face during use. The disposable mask and suction catheter also includes a catheter tube having a first and a ... | 05/29/2001 |
| 6155986 | Monitoring of oro-nasal respiration Apparatus for monitoring oro-nasal respiration. A pair of nasal prongs, suitable for insertion into the lower portion of the nares, join together via a small plenum chamber to form a single tube conveying the nasal pressure towards an electrical pressure ... | 12/05/2000 |
| 6152132 | Inspiratory tube for a ventilator An inspiratory tube intended to serve as at least part of an inspiratory line in a ventilator, has a tube wall, a distal end, a proximal end, a gas flow channel for carrying a flow of breathing gas and an opening in the wall at a specific distance from on... | 11/28/2000 |
| 6125847 | Anesthetic applicator with a temperature humidity regulating capability An anesthetic applicator with a temperature/moisture regulating capability is provided. The anesthetic applicator includes: means for supplying anesthetic; an inner duct, connected to the anesthetic supplying means, for conducting the anesthetic to the pa... | 10/03/2000 |
| 6098617 | Device for administering/sampling inhalant/expired gases in an oro/nasopharyngeal airway A device adapted for use with a conventional oral or nasopharyngeal airway for delivering an inhalant gas to a proximal end of said airway, and for sampling exhalant gas at a distal end of said airway, comprises a pair of conduits which are adapted to sli... | 08/08/2000 |
| 6003511 | Respiratory circuit terminal for a unilimb respiratory device A method for providing assisted ventilation which avoids hypoxia and hypocapnia is disclosed, in which a predetermined dead space in an assisted ventilation system is provided external to the patient. The method may also be used to create normocapnia or m... | 12/21/1999 |
| 5983895 | Tracheostomy tubes and assemblies A tracheostomy tube assembly comprises an outer tracheostomy tube and an inner cannula of a flexible material preformed to the shape of the outer tube and smooth on its inside and outside. The outer tube is straight at its patient end and has a short stra... | 11/16/1999 |
| 5983896 | Respiratory conduit for a unilimb respiratory device A method for providing assisted ventilation which avoids hypoxia and hypocapnia is disclosed, in which a predetermined dead space in an assisted ventilation system is provided external to the patient. The method may also be used to create normocapnia or m... | 11/16/1999 |
| 5983891 | Artificial ventilation methods for controlling carbon dioxide rebreathing A method for providing assisted ventilation which avoids hypoxia and hypocapnia is disclosed, in which a predetermined dead space in an assisted ventilation system is provided external to the patient. The method may also be used to create normocapnia or m... | 11/16/1999 |
| 5983894 | Filter for a unilimb rebreathing ventilator A method for providing assisted ventilation which avoids hypoxia and hypocapnia is disclosed, in which a predetermined dead space in an assisted ventilation system is provided external to the patient. The method may also be used to create normocapnia or m... | 11/16/1999 |
| 5947120 | Medication administering apparatus for use with an endotracheal tube A substantially tubular body includes an open first end adapted for connection to a ventilator. The body further includes an open second end opposite the first end and adapted for connection to an endotracheal tube. An injection tube has a primary end and... | 09/07/1999 |
| 5937858 | Oro/nasopharyngeal airway for administering/sampling inhalent/expired gases An oro/nasopharyngeal airway comprises an arcuately shaped tubular member adapted for insertion into a patient's pharynx, either through the mouth or nasal passage, to prevent obstruction during the administration of anesthesia. According to a preferred e... | 08/17/1999 |
| 5915383 | Cuffed medico-surgical tubes The cuff on the patient end of a tracheal tube is attached at one end to the inside of the tube and at the opposite end to the outside of the tube. The cuff encloses an axial sleeve that is slidably mounted within the patient end of the tube and is urged ... | 06/29/1999 |
| 5890490 | Therapeutic gas flow monitoring system A therapeutic gas delivery device includes a monitor having an inlet and an outlet, a source of therapeutic gas in fluid communication with the monitor inlet, and a gas delivery tube in fluid communication with the monitor outlet. The monitor includes a c... | 04/06/1999 |
| 5871011 | Apparatus for delivery of gas to patients Apparatus (10) is provided for controlled delivery of gas to a patient. The apparatus is particularly useful for delivery of anaesthetic gases in circumstances where the patient is conscious and able to receive gas upon demand and also where ventilation i... | 02/16/1999 |
| 5871012 | Laryngeal mask airways and their manufacture A laryngeal mask assembly has a mask portion formed by a flexible bag enclosing a mount attached to the patient end of a tube. The bag is sealed to the mount around an opening at the patient end of the tube. The neck of the bag is sealed to the tube rearw... | 02/16/1999 |
| 5868132 | Endotracheal tube holder An endotracheal tube holding device for holding a tube inserted into a patient's mouth and into the trachea. The tube is held in position by the device which has been adhesively secured to the patient's face by a foam strip with an adhesive backing to com... | 02/09/1999 |
| 5823184 | Breathing circuit The invention features a component which is part of a breathing circuit for directing flow of air to and from a patient, the breathing circuit including an inspiratory tube defining an inspiratory lumen for flow of air to the patient and an expiratory tub... | 10/20/1998 |
| 5819733 | Transpharyngeal tube with pharyngeal and esophageal cuffs, and protected tip A transpharyngeal tube (10), especially for intubation anaesthesia, has a tube shaft (13) on which an inflatable primary cuff (18) for blocking the pharynx (19) and an inflatable secondary cuff (16) for blocking the esophagus (12) are disposed. At least o... | 10/13/1998 |
| 5819734 | Neck flange for holding a tracheostomy tube in place and allowing limited movement therebetween and tracheostomy procedure using the same A neck flange supports a tracheostomy tube inserted into the neck and has a neck engaging portion of a molded thin flexible flat sheet of a transparent polymer. An interconnection positioned centrally within the neck engaging portion and carried thereby h... | 10/13/1998 |
| 5806516 | Endotracheal tube stabilizer An endotracheal tube stabilizer includes an elongate frame having a transverse tube channel with an opening sized to radially receive an endotracheal tube. Straps are provided for securing the frame to the head of a patient with the frame bridging and the... | 09/15/1998 |