Abstract: A long term oxygen therapy system having an oxygen supply directly linked with a patient's lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patient's lungs.

Abstract: A mechanical breathing aid for providing a regulated supply of a breathing gas has an expiratory pressure regulator for regulating gas pressure within an expiration gas flow path dependent on an input regulatory signal and an expiratory pressure sensor disposed to sense an actual gas pressure within the expiration gas flow path and to provide an output signal indicative thereof. A control unit is operably coupled to the expiratory pressure regulator and to the expiratory pressure sensor for calculating a target pressure as a function of time dependent on a value of compliance calculated from measurements of pressure and flow of provided breathing gas made during an inspiration phase, and for generating the regulatory signal dependent on a magnitude of the difference between the target pressure and the actual pressure.

Abstract: A device and method for enhancing skin piercing by microprotrusions involves pre-stretching the skin to enhance pathway formation when the microprotrusions are pressed into the skin. An expandable device includes skin engaging opposite ends that contact the skin surface so that when the device is expanded the skin is stretched. The skin is placed under a tension of about 0.01 to about 10 megapascals, preferably about 0.05 to 2 megapascals. The device has a plurality of microprotrusions which penetrate the skin while the skin is being stretched by the expanded device. Another stretching device employs suction for skin stretching.

Abstract: A device for adapting a transtracheal catheter to a tracheostomy tube includes a plurality of projections for engaging a security flange of the transtracheal catheter. The device provides for proper orientation of a beveled end of the catheter tube when the security flange is oriented as directed with it longest flat side up. A method of adapting a transtracheal catheter to a patient's tracheostomy tube is also provided for providing the delivery of heated and/or humidified gas to tracheotomized patients and/or for weaning a ventilator-dependent patient from the ventilator.

Abstract: Apparatus for delivery of humidified gases therapy includes a humidifier. A recorder records. An output interface allows for outputting of the recorded data. The recorder may also record data indicative of patient compliance with the humidified gases therapy. The apparatus may determine patient compliance from sensed delivered flow. Recorded humidity and compliance data retrieved from the apparatus are useful in methods for improving the efficacy of humidified gases therapy or diagnosing problems with the efficacy of humidified gases therapy.

Abstract: The invention relates to an orthesis comprising a first bar (2) and a second bar (3) joined to the latter in an articulated manner, in addition to at least one click-stop dial (14, 15), for adjusting the pivoting-range stops in an extensional or flexional direction. The invention is also provided with a fixing device, which comprises a locking disc (16) that is mounted in a rotationally fixed manner in relation to the first bar (2) and can be displaced in the direction of the pivoting axis (102), for blocking the click-stop dial (14, 15). The locking disc (16) can be moved by being displaced between a position that blocks the click-stop dial (14, 15) by radial impingement, in which the locking disc (16) engages with the click-stop dial (14, 15) in a locking positive fit and a release position, in which the locking disc (16) is disengaged from said click-stop dial (14, 15).

Abstract: An innovative bone anchor and methods for securing soft tissue, such as tendons, to bone, which permit a suture attachment that lies entirely beneath the cortical bone surface. Advantageously, the suturing material between the soft tissue and the bone anchor is secured without the need for tying a knot. The suture attachment to the bone anchor involves the looping of a length of suture around a pulley within the bone anchor, tightening the suture and attached soft tissue, and compressing the suture against the bone anchor. The bone anchor may be a tubular body having a lumen with a locking plug that compresses the suture therein. The pulley may be a pin located near a distal end of the tubular body around which the length of suture is looped. Alternatively, a pulley may be a bridge portion of the tubular body between two spaced apertures in the wall of the body. The locking plug may include a shaft and an enlarged head that interferes with the tubular body to provide a positive stop.

Abstract: A rotary regenerative heat exchanger includes a rotor having primary vanes 14 extending between the hub and the periphery of the rotor, and additional secondary vanes 15 between said primary vanes and extending over an outer annulus of the rotor. Such an arrangement facilitates having several of the primary and secondary vanes sealed with respect to a sector plate over the outer annulus as compared with the number of primary vanes sealing with the same sector plate over the inner annulus.

Abstract: In one embodiment, the invention provides a device for decreasing intracranial or intraocular pressures. The device comprises a housing having an inlet opening and an outlet opening that is adapted to be interfaced with a person's airway. The device further includes a valve system that is operable to regulate respiratory gas flows through the housing and into the person's lungs during spontaneous or artificial inspiration. The valve system assists in lowering intrathoracic pressures during each inspiration to repetitively lower pressures in the venous blood vessels that transport blood out of the head to thereby reduce intracranial or intraocular pressures.

Abstract: A string arrangement for a detachment type waist-protecting belt to hold the vertebra region of a vertebra related patient is provided. The string arrangement enables a separate fastening of the upper portion and lower portion of the belt to form a saddle like shape that fits the contour of the waist of an individual patient dynamically with or without the extra support of a frame. The waist-protecting belt can also be connected to a back supporting frame, which is comprised of two plastic plates, via two guiding nuts, fixed on the center of the exterior side of the inner-half of the rim of each solid plastic plate, guided through the two narrow and long holes found on the wider portions of the belt, and held in place by two wide head bolts which screw on to the nuts. Then the upper portion and lower portion of the frame is adjusted separately by the movement of the upper and lower portion of the belt.

Abstract: 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 Apparatus (SCBA). In one variation, the dual air supply breathing apparatus uses a Y-shaped changeover valve with two input tubes and one output tube. The first input tube receives filtered air from a PAPR and the second input tube receives compressed air from a tank. An actuator controls a flap valve within the changeover valve to seal off one of the input tubes while creating a flow path between the other input tube and the output tube. The changeover valve may be controlled by manipulating the high-pressure valve on the tank of compressed gas and/or by manipulating the switch that activates the PAPR.

Abstract: A refillable medical device comprising a base unit (4) adapted to be engaged with a refill unit (2), the device comprising means for counting the number of different refill units which are engaged with the base unit (4). The device may be in the form of a dry powder or pressurised aerosol inhaler, needleless injector, intravenous drip system etc. The device may comprise means to disable the device after a predetermined number of refill units have been used with the base.

Abstract: A T-shaped intrauterine device includes a longitudinal branch constituting a body of the T, to the upper higher of which is connected a transversal stem constituting the arms of the T. The body of the T is made up of a fiber that releases an active substance. The fiber constituting the body of the T presents a transverse channel on its upper part. The arms are inserted by force into the channel to form two equal arms on opposite side of the body. The stem forming the arms presents a curved form so that a wedging force exercised by the body on the stem is such that the latter is usually held in the channel in a position where the arms are oriented downwards of the body, while it is allowed to pivot in the channel until the arms are oriented upwards of the body under the effect of constraint exercised on the arms at the time of the extraction from the womb by an extraction wire of the device.

Abstract: A shoulder complex and upper arm injury reduction system having a torso fitting part, an upper arm wrap part, and at least one movement control strap constructed of non-stretchable material. The movement control straps are strategically anchored on the system to control posterior, anterior, and multidirectional movement of the upper arm wrap part relative to the torso fitting part. The straps are length adjustable to control the amount of movement of the upper arm wrap part relative to the torso fitting part, and prevent separation of the upper arm wrap part from the torso fitting part beyond the strap length. The system includes a control strap that extends from the shoulder capping region to a strap mounting location below or above the shoulder capping region. The strap is length adjustable to allow tension to be placed on the strap and to produce traction between the shoulder strapping region and the strap mounting location.

Abstract: A hinged dorsal carpal tunnel brace comprises a first substantially arcuate splint portion for fastening to a dorsal side of a patient's forearm. The first splint portion includes at least one strap for fastening the first arcuate splint portion to the patient's forearm. A second splint portion attaches to a dorsal side of the patient's hand and includes at least one strap for fastening to the patient's hand. A hinge pivotally connects the first splint portion to the second splint portion and allows pivotal motion through a preselected arcuate distance in radial and ulnar directions.

Abstract: An apparatus and method for providing a nebula or aerosol to a patient. In one aspect, a nebulizer is pressure sensitive so that nebulization is coordinated with a breathing cycle of the patient. The nebulizer includes a movable gas diverter that diverts pressurized gas across a liquid outlet. The diverter is moved in response to the patient's breathing cycle. In one aspect, a biasing member moves the diverter. According to another aspect of the nebulizer, an annular liquid orifice disperses an aerosol in a radial direction in response to a pressurized gas flow from an orifice located concentrically thereto. Multiple liquid orifices may be provided. In a further aspect of the nebulizer, a reservoir includes an upper, wide portion and a lower narrow portion to apply relatively uniform pressure at a liquid orifice.

Abstract: A medical device for overcoming upper airway obstruction when a patient is placed in a supine position, featuring a flat rectangular support base that attaches to the support frame perpendicularly, and a variation of lower jaw supports that attach to the support frame after encircling the patient's lower jaw.

Abstract: A blister pack for use with inhalation therapy inhalers comprises an elongate bottom element having an overlying top element defining a plurality of spaced top crowned areas containing powder or liquid medications or drugs.

Abstract: An intravenous catheter retainment device for use on young children and babies that supports and overlies a portion of the forearm and hand having an inserted intravenous needle therewithin. An overlying portion of said cover is of a stretchable see through netting that conforms to the hand and lower forearm securely holding it in place on a rigid support board. The netting allows for visual inspection of the IV site and is releasably secured to the support board for ease of selected access thereto.

Abstract: An eye-wear article (93) for use with a respiratory mask (1) comprises a flat piece of transparent polymeric material providing a visor portion. The flat piece of polymeric material has shaped portions in a lower edge that fit over respective selected parts of the mask, and elongate tabs (95) that extend from each side and are inserted into respective guides (97) on the head harness (7, 8) of the mask to cause the flat piece of polymeric material to adopt a curved configuration and locate the visor portion in front of the eyes of the wearer. The tabs (95) can slide in the guides (97) to permit the eye-wear article to be moved out of engagement with the mask and onto the top of the wearer's while the mask is being worn, without disturbing the position of the mask on the wearer's face and without affecting the respiratory protection provided by the mask.