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A retention device and method for retaining a gas delivery system provide improved safety and comfort for the recipient of oxygen or other gaseous mixture. The retention device includes a tube holder for maintaining a tension on a supply tube of a gas delivery system and an ear stop for transferring

A retention device and method for retaining a gas delivery system provide improved safety and comfort for the recipient of oxygen or other gaseous mixture. The retention device includes a tube holder for maintaining a tension on a supply tube of a gas delivery system and an ear stop for transferring the tension of the supply tube to the back of an ear of the recipient. The device is generally molded from a flexible plastic material and includes a tube holder portion defining a cylindrical cavity therethrough for receiving and applying tension to a supply tube and an ear stop portion extending downwards from and end of said tube holder portion so that the tube holder portion may be placed over the recipient's ear and the ear stop placed behind the recipient's ear. A pair of the retention devices will generally be used, one for each ear. A channel or diverter may be included on the top of the tube holder portion to permit recipients wearing eyeglasses to comfortably use the device and the tube holder portion may extend backward from the ear stop to produce a cantilever effect that more effectively retains the ear stop against the recipient's ear. A radial opening may be provided in the tube holder portion for insertion of a supply tube where an end of the supply tube is not available. The opening may be closed and secured by forming mating surfaces in the walls defining the opening, by a flap to wrap around the opening or by other securing means.

대표청구항 ▼

A retention device and method for retaining a gas delivery system provide improved safety and comfort for the recipient of oxygen or other gaseous mixture. The retention device includes a tube holder for maintaining a tension on a supply tube of a gas delivery system and an ear stop for transferring

A retention device and method for retaining a gas delivery system provide improved safety and comfort for the recipient of oxygen or other gaseous mixture. The retention device includes a tube holder for maintaining a tension on a supply tube of a gas delivery system and an ear stop for transferring the tension of the supply tube to the back of an ear of the recipient. The device is generally molded from a flexible plastic material and includes a tube holder portion defining a cylindrical cavity therethrough for receiving and applying tension to a supply tube and an ear stop portion extending downwards from and end of said tube holder portion so that the tube holder portion may be placed over the recipient's ear and the ear stop placed behind the recipient's ear. A pair of the retention devices will generally be used, one for each ear. A channel or diverter may be included on the top of the tube holder portion to permit recipients wearing eyeglasses to comfortably use the device and the tube holder portion may extend backward from the ear stop to produce a cantilever effect that more effectively retains the ear stop against the recipient's ear. A radial opening may be provided in the tube holder portion for insertion of a supply tube where an end of the supply tube is not available. The opening may be closed and secured by forming mating surfaces in the walls defining the opening, by a flap to wrap around the opening or by other securing means. eformable body portion connected to said nozzle portion, said body portion containing a piston mechanism and a dosage cavity of a predetermined volume for collecting medicament from said vial, said nozzle portion having a rigid shaft received therein and interfacing said outlet to form a normally-closed valve; and an elastic pouch positioned within said vial, interior of said elastic pouch containing varying amounts of air, said air in said elastic pouch being in communication with external ambient air via an air-flow channel, and the volume of said elastic pouch being variably altered as a function of the volume of medicament contained in the vial. 3. The dispensing system according to claim 2, wherein said body portion further contains a pump sleeve, said piston being at least partially and slidably positioned within said pump sleeve, and wherein said dispensing system further comprises at least one O-shaped ring on annular portion of said piston and slidably engaging said pump sleeve to provide a fluid-tight seal. 4. The dispensing system according to claim 2, wherein said vial portion has an opening region for facilitating medicament filling, which further comprises: a mechanical plug for sealing said opening region of said vial portion, said mechanical plug having a U-shaped cross-section along its annular portion, said mechanical plug being adapted to securely engage said opening region by sliding over said opening region and radially clasping said opening region with said U-shaped annular portion, wherein said air-flow channel extends through said mechanical plug. 5. The dispensing system according to claim 2, wherein said vial portion is made of a rigid material, and wherein said elastic pouch is in collapsed condition when the vial is filled with medicament, and wherein said elastic pouch expands as the medicament contained in the vial is dispensed via said outlet.