External end device and method for its connection to flow lines
OwnerNicola Grandolfo, Emilio Magaldiinventors
Life of this patent
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Abstract
An external end device has a casing (4), a fitting (15) housed in the casing (4) and having at least one distal part (16) which engages a catheter (3), and two proximal tracts (17, 17), in which a pair of curved pipes (18, 18) are inserted with a distal end (180) thereof. The curved pipes (18, 18) have a proximal end (181), in which a pair of nozzles (190, 190) are inserted. Inside each nozzle (190) there is a cap (20) suitable for hermetically sealing the nozzle (190). A piercing and connecting conduit (24) is adapted to reversibly pierce the cap (20) and to connect the pair of nozzles (190, 190) to the flow lines of the treatment equipment. Also disclosed is a method of connecting the external terminal device to flow lines of a machine.
Claims10
An external end device adapted to be connected, on one side, to at least one catheter, on which a subcutaneous cuff is applied, and, on the other side, to a lid, or alternatively to flow lines of a treatment apparatus, the external end device comprising:
- a casing, including a base delimited by a plurality of side walls, in which there are a distal opening and a pair of proximal openings with respect to said flow lines, and a removable cover on the side walls,
- a fitting housed in the casing and having at least one distal part that engages in the at least one catheter, and two proximal tracts, and
- a pair of curved pipes each having a distal end inserted on the respective proximal tract of the fitting, and a proximal end,
- a pair of nozzles equipped with nozzle chambers and inserted in the proximal end of the curved pipes, inside each nozzle chamber being a cap that is adapted to hermetically close the nozzle and is reversibly pierceable, and
- a piercing and connecting conduit designed to reversibly pierce the cap and to connect the pair of nozzles to the flow lines of the treatment equipment,
- wherein the piercing and connecting conduit comprises in parallel lines, starting from a distal end of the piercing and connecting conduit:
- a pair of clamps, each clamp having a central body centrally perforated in line, a rigid pipe intended to be connected to a respective nozzle in the septum, and a joint located in the central body on the opposite side of the rigid pipe,
- a pair of elastic pipes, each elastic pipe having a distal end, inserted on the joint, and a proximal end,
- a pair of lock elements, each lock element being connected, on one side, to the proximal end of the elastic pipe and, on the other side, to the connection to the flow lines of the treatment equipment,
- a pair of occlusion clips, each occlusion clip being positioned around each elastic pipe, and
- a pair of piercing members, each piercing member having a needle and a head internally hollow to close on the lock element, the needle passing through the lock element, the elastic pipe, the clamp, to exit from the distal end of the rigid pipe.
A method for connecting an external end device to flow lines of a treatment equipment, the external end device comprising:
- a casing, including a base and a removable cover, and a lid with the interposition of an antiseptic sponge,
- a pair of nozzles equipped with nozzle chambers and connected in a distal end to at least one catheter through a fitting, inside each nozzle chamber being a cap suitable for hermetically closing the nozzle that is reversibly pierceable,
- a piercing and connecting conduit adapted to reversibly pierce the cap and to connect the pair of nozzles to the flow lines of the treatment equipment, the piercing and connecting conduit comprising in parallel lines, starting from a distal end of the piercing and connecting conduit:
- a pair of clamps for hooking the piercing and connecting conduit to the casing,
- a pair of elastic pipes,
- a pair of lock elements, connectable to the flow lines of the treatment equipment,
- a pair of occlusion clips, positioned around each elastic pipe, and
- a pair of piercing members, each piercing member having a needle and a head that is internally hollow to close on the lock element, the needle passing through the lock element, the elastic pipe, the clamp, to exit from the distal end of the rigid pipe, the method comprising:
- removing the lid and the antiseptic sponge from the casing;
- in-line assembling the piercing and connecting conduit by joining the pair of clamps, the pair of elastic pipes, the pair of occlusion clips around respective elastic pipes, the pair of lock elements, and the pair of piercing members;
- approaching the mounted piercing and connecting conduit coaxially to the pair of nozzles up to the coupling of the pair of clamps to the casing with consequent reversible piercing of the caps inside the nozzle chambers;
- removing the pair of piercing members from the piercing and connecting conduit with simultaneous closing of the pair of occlusion clips around the pair of elastic pipes;
- and
- connecting the pair of lock elements to the flow lines of the treatment equipment.
Dependencies are inferred from the claim text.