Abstract: A vocal training device comprises a generally cylindrical hollow body. The generally cylindrical hollow body has a first open end, a second open end, a first tube member and a second tube member. The second tube member is configured to be telescopically inserted into the first tube member, such that the length of the generally cylindrical hollow body of the vocal training device is adjustable. The vocal training device also has a connector having a portion that is configured for removable connection to the second open end of the generally cylindrical hollow body of the vocal training device and a portion configured for removable connection to a vocal training attachment member. The vocal training attachment member can be an aperture reducing attachment, a variable aperture reducing attachment, a breath visualisation attachment, a water resistance voice therapy training attachment or an oscillating resistance generator.

Abstract: A respiratory ventilation apparatus configured to deliver a respiratory gas to a patient interface is provided. The apparatus may include a gas pressurization unit configured to generate a pressurized respiratory gas, a gas inlet port configured to introduce the respiratory gas into the respiratory ventilation apparatus, a gas outlet port configured to discharge the pressurized respiratory gas to a respiration tube, a detection module configured to detect the pressure of the pressurized respiratory gas, at least one non-volatile memory configured to store a plurality of parameters and a plurality of programs, and one or more controllers. The one or more controllers may be configured to initiate the respiratory ventilation apparatus upon a boot operation, and/or initiate a program that constantly reads information from the detection module, and controls the pressure of the pressurized respiratory gas using the information read from the detection module and at least one parameter.

Abstract: A resuscitation chamber apparatus for administering hyperbaric oxygen to a patient. More particularly, the present invention relates to a hyperbaric oxygen compatible critical care chamber apparatus preferably for use in emergency departments and/or prehospital ambulance management of patients. In a preferred embodiment of the present invention, the apparatus is a resuscitation monoplace hyperbaric chamber preferably used in critical care management of acutely ill or injured patients in prehospital emergency medical services (EMS) settings or in hospital emergency departments. The apparatus preferably allows a critical care shock or arrested patient to be pressurized preferably without compromise for application of best medical equipment, medications and human resuscitating intervention.

Abstract: Adjustable child carriers are disclosed. A disclosed example child carrier includes a child support pouch to receive a child in a substantially upright position, where the child support pouch includes an upper pouch area, a medial pouch area and a lower pouch area. The example child carrier also includes a harness to support the child support pouch on an adult, where the harness includes a first upper strap coupled to the upper pouch area, a second upper strap coupled to the upper pouch area, and a lower strap coupled to the medial pouch area. The example child carrier also includes a first leg support coupled to the child support pouch at the lower pouch area, where the first leg support pouch has a first continuously adjustable operative surface area, and a second leg support coupled to the child support pouch at the lower pouch area, where the second leg support pouch having a second continuously adjustable surface area.

Abstract: The present invention relates to a resuscitation chamber apparatus for administering hyperbaric oxygen to a patient. More particularly, the present invention relates to a hyperbaric oxygen compatible critical care chamber apparatus preferably for use in emergency departments and/or prehospital ambulance management of patients. In a preferred embodiment of the present invention, the apparatus is a resuscitation monoplace hyperbaric chamber preferably used in critical care management of acutely ill or injured patients in prehospital emergency medical services (EMS) settings or in hospital emergency departments. The apparatus preferably allows a critical care shock or arrested patient to be pressurized preferably without compromise for application of best medical equipment, medications and human resuscitating intervention.

Abstract: A device for the provision of oxygen masks has a closeable container for oxygen masks, an extendable arm having links coupled in articulated fashion and having an outer end, and a driving device. The outer end is coupled to at least one oxygen mask. The arm adopts a storage position in which the arm is arranged completely within the container, and an extended position in which the outer end is moved out of the container and in which the arm holds the oxygen mask at a distance from the container. The driving device is coupled to the arm and passes the links out of the container. The links enclose a pivoting range extending as far as a level juxtaposition of the links. When extended, the arm adopts the level juxtaposition under the action of gravity for the lateral spacing of the relevant oxygen mask from the container.

Abstract: Portable breathing equipment and related methods are disclosed. An example portable breathing equipment (PBE) includes a housing defining a cavity, a cover movably coupled to the housing, and a smoke hood provided in a wrapper and positioned in the cavity. A first portion of the wrapper couples to the housing and a second portion of the wrapper couples to the cover. At least one of the cover or the housing to cause the wrapper to tear to provide an access opening to allow access to the smoke hood when the cover moves from a closed position at which the cover seals the cavity of the housing and an open position at which the cover enables access to the cavity of the housing.

Abstract: Apparatus for performing a procedure at a target site of a patient's body, the apparatus comprising: a continuous positive airway pressure (CPAP) apparatus that provides CPAP to the patient's lungs; a medical device for performing the procedure at the target site; and a controller that controls the CPAP apparatus to provide CPAP to the patient's lungs during performance of the procedure.

Abstract: A method and apparatus can be used in the selection of correctly sized respiratory interfaces. The method includes the use of light beams to project sizing markers onto a patient's face, which enables the size of the patient's facial features to be measured relative to a set of interface sizes. A sizing apparatus can include a light source and beam splitters that will refract and project the light source into a series of beams that can be aligned on a patient's face in order to measure the features of the patient.

Abstract: A chest-supported nebulizer apparatus. The chest-supported nebulizer apparatus has a planar base that rests on the chest of a user. At least one lateral strap and a neck strap is removably securable from the planar base. The neck strap can encircle the neck of the user and is slidably adjustable to adjust the length of the neck strap. A receptacle is disposed in the planar base, wherein the receptacle can receive a central support therein. The central support is pivotally affixed to the receptacle, allowing a user to adjust the angle of the central support relative to the planar base. A support assembly is slidably affixed to the central support. The support assembly is sized to receive a nebulizer.

Abstract: Systems for establishing a reproducible breath-holding pattern during radiotherapy are disclosed. An exemplary image-guided radiotherapy system (100) may include an airway breathing controller (ABC) device (160), which may block airflow to the patient during imaging and/or radiotherapy to immobilize a target tumor. A patient may practice breath-holding during a training session until a reproducible breath-hold pattern is established. The patient may perform the breath-hold pattern in imaging and/or radiotherapy sessions, during which physiological signals may be measured from the patient and compared to baseline signals collected during the training session. Variation between measured signals and baseline signals may indicate unreproducible breath-holding, in which case radiation delivery may be altered or halted.

Abstract: A wearable electronic simulated smoking device is provided for delivery of a desired active ingredient responsive to a user's inhalation through the device. The device includes an elongated tubular member (110) having at least one reversibly bendable portion to at least partially encompass a portion of a user's body and is releasably retainable thereat. The device includes a vaporization chamber supplied with a vaporizable smoking composition and enabled by a controller to generate vapor from the vaporizable smoking composition and add the vapor to air drawn through the device.

Abstract: A system for the emergency oxygen supply of passengers in an aircraft includes at least one primary oxygen mask and at least one secondary oxygen mask arranged in the aircraft in a compartment above a seat, and a retaining receptacle arranged in the compartment. The at least one primary oxygen mask and at least one secondary oxygen mask are each connected to an oxygen source by way of a tube. The at least one primary oxygen mask drops out of the compartment before the at least one secondary oxygen mask when a flap of the compartment opens. The at least one secondary oxygen mask is arranged in the at least one retaining receptacle. The retaining receptacle is connected to the compartment by a first connector and to an activation device of the oxygen source by a second connector. The at least one primary oxygen mask can activate the oxygen source.

Abstract: A patient interface system includes a cushion and a frame that form at least part of a breathing chamber configured to receive the patient's nose. The patient interface system further includes headgear with a back portion and a pair of upper headgear straps extending from the back portion. In addition, a shroud is removably mounted on the frame and includes a pair of upper headgear connectors configured to connect to the pair of upper headgear straps. Each of the pair of upper headgear connectors comprises a rigidizer configured to be proximal to a nasal bridge region of the patient when donned by the patient. The pair of upper headgear straps are configured to be releasably attached to the pair of upper headgear connectors such that, when donned by the patient, the pair of upper headgear straps extend substantially parallel to the patient's Frankfort horizontal plane.

Abstract: A refuge shelter includes a container. The shelter includes a tent that is disposed in the container in an undeployed state. The tent includes an inflatable support structure which is inflatable from an undeployed state in the container to a deployed state, and a seal which seals the tent to the container in a deployed state. The support structure has a plurality of hoses interconnected by couplers. The hoses have an inside diameter of less than 5 inches. A gas flow apparatus. A refuge shelter for miners in a mine includes a container and a tent that is disposed in the container. The tent has a test support to which a sample of the external environment can be obtained from inside the tent when the tent is deployed. A method for providing a refuge chamber for miners in a mine.

Abstract: A gas vending system for health application, comprising: a healthy gas generator module, a control module, and a charging/payment module. The healthy gas generator module is used to generate a healthy gas. The control module is connected to the healthy gas generator module for monitoring the usage state of the healthy gas and generating a volume consumption signal for the healthy gas. The charging/payment module is connected to the control module for receiving the volume consumption signal for the healthy gas and then generating a toll after computing. The charging/payment module is adapted to accept cash or charging a debit card or credit card according to the toll.

Abstract: An aircraft ceiling liner element comprises a load-bearing carrier platform, configured to form a part of an aircraft ceiling liner, and a mounting mounted on the carrier platform, connectable to a primary structure of the aircraft. An electrical connection mounted on the carrier platform is connectable to an electrical supply network of the aircraft. Furthermore, the aircraft ceiling liner element comprises a mechanical interface mounted on the carrier platform, configured to attach various interchangeable modular units detachably and in a load-transferring manner to the carrier platform, and an electrical interface mounted on the carrier platform, which interface is configured to create an electrical connection between the modular unit and the carrier platform.

Abstract: A controller is operable to selectively supply gas to, and evacuate gas from, regions of a hyperbaric wound treatment chamber. The controller operates to inflate a passage or rib of the device to provide that the device is made sufficiently rigid for inserting a limb therethrough, and inflate an inflatable cuff to create a seal against the limb. The controller also operates to evacuate ambient air trapped within the chamber, and optionally partially evacuate the passage or rib, after the seal is created by the inflatable cuff, and then introduce oxygen into the chamber, and optionally inflate the passage or rib. The cuff, when inflated and creating a seal against a limb, optionally is at least partially within the chamber, and the treatment gas is supplied to the chamber to maintain the seal of the cuff against the limb.

Abstract: The specification describes anesthesia systems with an integrated, extendable clinical center and clinician/anesthesia office that accommodates for physical separation of clinical and clerical functions. The disclosed anesthesia systems allow for a portion of the system to be brought closer to the patient such that clinical controls can be accessed while tending to the patient airway, without compromising office space available to the clinician or crowding the patient area.

Abstract: An aerosol-generating device may include a housing having flexible portion along its length. The flexible portion is configured to transition between a relaxed or unloaded configuration and a flexed or deflected configuration. A flexible heating element and mouthpiece may also be disposed in the housing. When the housing is in a relaxed or unloaded configuration, the flexible heating element and the mouthpiece are at least partially longitudinally aligned with the flexible portion of the housing.

Abstract: A system for delivering drug is provided. The system includes an adapter and a device. The adapter is configured to establish fluid communication with a gas conduit of a ventilator circuit. The device includes an actuation member and an actuator. The actuation member is configured to pivot. A canister containing drug is disposed between the adapter and the actuation member. The actuator is engaged to the actuation member such that the actuator selectively causes pivotal movement of the actuation member, causing the actuation member to apply pressure over the canister, thereby causing the canister to deliver drug into the adapter.

Abstract: A Compressed Air Breathing Apparatus (CABA) or Self-Contained Breathing Apparatus (SCBA) is routinely used in environments when there is no breathable air and in emergency situations. However, CABA/SCBA tanks have limited capacity to hold compressed air, and BA filling stations are required in environments in which it may be necessary to refill the CABA/SCBA tanks during an emergency situation. Disclosed is a BA filling station system with a back-up air supply and remote activation. Two or more filling stations are interconnected by one or more air supply lines to provide a flow of compressed air between the filling stations, and one or more remote activation lines to control the flow. Advantageously, the system provides redundancy between the remotely located BA filling stations and substantially improves safety by making available a back-up source of an air supply from another interconnected filling station.

Abstract: Extracorporeal membrane oxygenation systems and methods of use are disclosed. Several publications and patent documents are cited throughout the specification in order to describe the state of the art to which this invention pertains. Full citations of these references can be found throughout the specification. Each of these citations is incorporated herein by reference as though set forth in full.

Abstract: A method of maintaining sterile surgical instruments sterile. The instruments are placed on a tray located on an upper surface of a sterile gas flow conditioning emitter affixed onto an anatomical surface of a patient adjacent a site of incision. The emitter has upper and lower gas vents from its interior, the upper vent facing and opening across the tray for passing sterile gas across the tray to maintain a sterile field on the tray for the instrument.

Abstract: An electronic cigarette is provided according to the present application, which includes an annular body. The annular body includes an atomizer assembly, a power supply assembly, a connecting block, a first arc-shaped segment and a second arc-shaped segment. An accommodating chamber is provided in the first arc-shaped segment, and a first electrode connector electrically connected to the power supply assembly is provided in the first arc-shaped segment. The atomizer assembly includes an atomizing sleeve, a second electrode connector, a liquid accommodating space arranged in the atomizing sleeve and an electric heating wire assembly. The electronic cigarette may be worn on the wrist of the user securely, which can avoid falling of the electronic cigarette, and avoid unnecessary loss. Further, may the electronic cigarette can be conveniently carried by wearing it on the wrist, thus the user may puff on the electronic cigarette anytime and anywhere.

Abstract: A wearable electronic simulated smoking device (100, 100?, 100?) is provided for delivery of a desired active ingredient responsive to a user's inhalation through the device (100, 100?, 100?). The device (100, 100?, 100?) includes an elongated tubular member (110) having at least one reversibly bendable portion (112, 112a, 112b) to at least partially encompass a portion of a user's body and is releasably retainable thereat. Device (100, 100?, 100?) includes a nebulization chamber 140 supplied with a liquid smoking composition (132) held in a fluid container (130) and enabled by a controller (150) responsive to detection of a user's inhalation through the device (100, 100?, 100?).

Abstract: A method for automated CPR includes controlling a position of a compression element during movement of the compression element from an initial starting position (P0) of a first compression cycle to a first compression position (P1) corresponding to a first compression depth and back to a rest position of the compression element. After, the rest position has been reached, the method includes controlling a force exerted on the compression element, to ensure that the compression element stays in contact or re-contacts with the chest while allowing the chest to move upward due to ventilation, prior to the start of a second compression cycle.

Abstract: A breathing assembly for aircraft comprising a storage unit, a breathing mask and a releasable securing device. The storage unit has a guiding surface extending perpendicularly to an elevation direction and a maintaining element. The breathing mask comprises a rigid support having a sliding surface adapted to slide in contact with the guiding surface of the storage unit, along a sliding direction between a storage position and an exit position. The support further has a maintaining element. In the storage position, the sliding surface of the support is prevented from moving away from the guiding surface of the storage unit along the elevation direction at the distal end by engagement of the maintaining element of the support with the maintaining element of the storage unit.

Abstract: Embodiments relate generally to methods of manufacture of a filtration media, such as a personal protection equipment mask or respirator, which may incorporate a FORCESPINNING™ process to form nanofibers. Some embodiments may comprise FORCESPINNING™ material onto a convex mold, which may, for example, be in the shape of a human face. Other embodiments may comprise FORCESPINNING™ material onto an inner and/or outer shell of a personal protective equipment mask, such as a flat fold mask. In an embodiment, the forcespun nanofibers may be functionalized, and therefore may, for example, be operable to capture one or more gases.

Abstract: A method and apparatus for cyclic variations in altitude condition that allows a user to rest in a pressure vessel while undergoing rapid variations or transitions between simulated altitudes. The pressure vessel comprises a blower to generate negative pressure, and a proportional valve to allow air back into the pressure vessel in order to relieve the negative pressure. An on-board interface, kiosk controller and master controller are all in electrical communication with each other in order to enable a user to implement a program of cyclic variations in altitude conditioning that is suitable to the specific user, and enables an operator to bill the user for such services, as well as to allow the user to use a different pressure vessel without re-entering data, so long as such data was originally entered and stored, and the different pressure vessel is in electrical communication with the master controller.

Abstract: The PORTABLE ASEPTIC UNIT is an invention which will provide an aseptic environment at a first location to allow mixing and preparation of aseptic products and then provide an aseptic environment at the site of administration to patient or animal.

Abstract: The present invention is directed toward an adapter for use with an anesthesia face mask prior to a medical procedure, such as surgeries on children. The adapter comprises a housing having on its proximal end a cooperatively structured entry port facilitating connection of the housing to an orifice of the anesthesia face mask structured for intake of inhalational anesthetics or other gases. It further comprises a sensor, which may be a microphone or flow meter, disposed on or at least partially within the housing and structured to receive control commands from the user, and a computing device in a communicative relationship with the sensor and structured for presentation of interactive media to the user. The computing device is structured to correspondingly alter the interactive media according to the control commands given by a user. Additionally, the present invention is directed to a method of using the adapter described herein.

Abstract: Wireless systems and methods include a plurality of peripheral electronic devices each having a wireless communication system. A processor is configured to establish an association confidence level indicative of a likelihood that a peripheral electronic device is associated to a monitored subject for each peripheral electronic device based on association criteria. Indicators are configured to communicate the association the association confidence level.

Abstract: A torsional support apparatus is disclosed for craniocaudal rotation of test animals to enable multiple-view imaging. The animal is supported in a U-shaped loop of optically transparent material and the loop is moved to apply torsion to the animal to rotate it about its craniocaudal axis. Methods of imaging also are disclosed that use the torsional support technique.

Abstract: A Self Contained Breathing Apparatus (SCBA) Illumination System utilizing LED (light emitting diode) lights is designed as a modification to attach to a Self Contained Breathing Apparatus (SCBA) mask to provide increased visibility to Professionals working in an Immediately Dangerous to Life or Health (IDLH) environment. The SCBA illumination System can be easily installed on a typical mask. The SCBA illumination System comprises a strip of lights coupled to a power supply comprising a power button and a battery pack. The power button may include a push button or pressure sensor that allows a Professional to activate the push button or pressure sensor easily with a gloved hand. The power source may also include some type of circuitry that powers down the light after a specified amount of time to avoid draining the power source.

Abstract: The invention relates to a passenger service unit (PSU) for use in an aircraft, comprising a reading light having a light source and a reflector partially enclosing the light source, and an emergency oxygen supply device comprising an oxygen source, a starter unit for releasing oxygen flow from said oxygen source to an oxygen mask, a control unit for controlling oxygen flow rate from said oxygen source to said oxygen mask and an electrical energy storage device like a rechargeable battery pack or a condensator, for providing electrical energy to said control unit and/or said starter unit. According to the invention, the PSU comprises an energy harvesting unit adjacent to or integrated into said reflector of said reading light wherein said energy harvesting unit is electrically connected to said electrical energy storage device.

Abstract: An illuminable air supply kit for providing an emergency safety device adapted to transport and delivery for oxygen on demand. The illuminable air supply kit comprises a base canister connected to an actuating mechanism and a delivery structure connected to the actuating mechanism. The base canister is defined as a conventional canister adapted to hold pressurized air. The actuating mechanism is defined by a pressure gauge, a trigger and a dispensing structure. The delivery structure is defined by a transfer apparatus and a delivery apparatus.

Abstract: A device and method for treating a variety of conditions, disorders or diseases with diaphragm/phrenic nerve stimulation is provided.

Abstract: Passenger interface units include individual passenger modules having co-located controls for passenger comfort and entertainment systems. The modules will include a glass panel having front and rear surfaces, a structural support panel bonded to the rear surface of the glass panel and a light-emitting unit supported by the support panel behind the rear surface of the glass panel. The rear surface of the glass panel may include an opaque printed coating layer having at least one unpainted region that is transparent to visible light emitted by the light-emitting unit thereby allowing the visible light to be transmitted through the glass panel and visible at the front surface thereof.

Abstract: A system for controlling and monitoring flow in a cuffed endotracheal tube device is disclosed. The system comprises: a connector panel having at least three connectors adapted for establishing fluid communication with proximal ends of at least a first fluid line, a second fluid line and a cuff inflation line of the endotracheal tube device. The system can further comprise a processing unit and a control unit, wherein the processing unit is configured to instruct the control unit to execute various operations, including at least a rinsing procedure, a suctioning procedure, a cuff inflation procedure, a leak detection procedure and a venting procedure, and to select any of the first and the second fluid lines for any of the rinsing, suctioning, leak detection and venting procedures. In some embodiments, the system exploits the cuff as sensor to sense pulmonary data.

Abstract: A self-contained breathing apparatus. The self-contained breathing apparatus comprises a back plate comprising a shoulder strap load portion and a waist belt load portion, wherein the waist belt load portion rotates about an extended axis defined by the junction of the waist belt load portion with the shoulder strap load portion, a shoulder strap coupled to the shoulder strap load portion of the back plate, a waist belt coupled to the waist belt load portion of the back plate, and a bottle of compressed breathable air secured to the shoulder strap load portion of the back plate.

Abstract: Provided is a portable ventilator system, including a ventilator supply system having a ventilator mask, an air/oxygen source and an air/oxygen regulator system, and including a communications device that, during use, automatically contacts an emergency response entity in response to activation of the portable ventilator system. Also provided is a ventilator system that includes at least one ventilator mask sized to fit upon a selected range of sizes of human faces, a ventilator supply system having an air/oxygen source and an air/oxygen regulator system, and an air/oxygen flow regulation valve having an inlet, an inlet/outlet in communication with a ventilator mask coupled to the ventilator supply system, and an outlet in communication with a surrounding atmosphere. During use, air/oxygen flows through the inlet and the inlet/outlet to facilitate ventilation of a human, and air/oxygen flows through the inlet/outlet and the outlet to facilitate exhalation by a human to the surrounding atmosphere.

Abstract: An apparatus for treatment of a patient with both sleep-disordered breathing and diabetes includes: a blower configured to provide a supply of air at positive pressure; a patient interface; headgear to hold the patient interface in position in communication with a patient's airways; at least one hypoglycemia sensor; an alarm; and a controller, wherein the controller is programmed to receive a signal from the at least one hypoglycemia detector, analyze the signal for indications of hypoglycemia and upon detection of an indication of hypoglycemia trigger the alarm.

Abstract: Embodiments relate generally to personal alert safety systems (PASS) as well as the use of piezoelectric sound generators which may be located within a PASS device operable to alert others when user is in danger. Some embodiments further relate to the use of a PASS device in an SCBA. Embodiments may also relate to the design of piezoelectric driver circuits operable to sound one or more piezoelectric sound generators, wherein the driver circuit design may be low cost and energy efficient.

Abstract: A chin strap assembly that easily helps in keeping the mouth closed in conjunction with a respiratory machine. The chin strap assembly includes a main body having a center, a first strap protruding from a first side of the center, and a second strap protruding from a second side of the center. The first strap and the second strap are separated by a gap. The main body is made of an inner layer surrounded by an outer layer. The outer layer is made of a soft material and the inner layer is made of a stuffing material.

Abstract: Disclosed is an emergency air system and method of a marine vessel. In one embodiment, a method of safety of a marine vessel includes affixing an emergency support system to the marine vessel. In addition, the method includes pressurizing the emergency support system of the marine vessel to facilitate an air extraction process through the marine vessel. The method also includes expediting the air extraction process from the emergency support system by including a rapid fill fitting to a fill panel to fill a breathable air apparatus.

Abstract: A ventilation conduit for a ventilation system for the delivery of air includes an outer electrode and in inner electrode. The outer electrode is formed as a wall body of the ventilation conduit. The inner electrode is configured to be arranged in an interior space of the ventilation conduit that is enclosed by the outer electrode. Applying an electric voltage between the inner electrode and the outer electrode allows a gas discharge to be brought about to generate a plasma for cleaning the ventilation conduit in an installed state.

Abstract: A device for removing secretions from an artificial tube is provided. The device may include a clearing catheter and a driving mechanism that may apply repetitive motion to the clearing catheter. In another version of the device, the clearing catheter may dispense irrigation fluid and aspirate the irrigation fluid. The clearing catheter may have an irrigation and an aspiration lumen that may both reciprocate with the clearing catheter. In another version a compliant member into which irrigation fluid is located may be present.

Abstract: A smart light comprising: a battery; a light bulb; circuitry connecting the battery to the light bulb; a detector for detecting the presence of a hazardous atmospheric condition; and alert apparatus connected to the detector for alerting a user when a hazardous atmospheric condition is detected by the detector. A self-rescuer comprising: a self-contained breathing apparatus (SCBA); and a smart light; wherein the smart light comprises: a battery; a light bulb; circuitry connecting the battery to the light bulb; a detector for detecting the presence of a hazardous atmospheric condition; and alert apparatus connected to the detector for alerting a user when a hazardous atmospheric condition is detected by the detector, and further wherein the alert apparatus is connected to the circuitry and configured so as to flash the light bulb when a hazardous atmospheric condition is detected.

Abstract: A device for cleaning the interior wall of a catheter has a cleaning lumen and skives as non-inflatable removal elements on the exterior surface of the cleaning lumen. Each skive has a first position when unconstrained and a second position when within the catheter. The skives self-position the device concentrically within the catheter. Suction is desirably applied to the cleaning lumen during use.