Carbon dioxide absorber for a rebreathing system
DCFirst Claim
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1. A carbon dioxide absorber for a rebreathing system, the carbon dioxide absorber comprising:
- a connection head at the rebreathing system, said connection head including a pivotable mount;
an absorber housing;
a guide plate on a front side of said absorber housing, said guide plate being pushed into said pivotable mount of said connection head;
guide plate gas ducts arranged concentrically at said guide plate;
connection head gas ducts provided in said connection head and with a design corresponding to said guide plate gas ducts, said guide plate gas ducts for connection to said connection head gas ducts;
guide grooves between said guide plate and said absorber housing for connecting said guide plate to said mount;
centering pins pointing in a direction of said absorber housing from said connection head; and
centering means in one or more of said guide plate and said absorber housing, said centering means for meshing with said centering pins from said connection head;
said pivotable mount being pivotable between a first position and a second position, said first position arranging said pivotable mount adjacent said connection head, said second position arranging said pivotable mount spaced from said connection head and said centering pins.
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Abstract
A carbon dioxide absorber for a rebreathing system can be connected to a connection head of the rebreathing system in a simple manner. A centering device (43, 44, 45, 46), provided in the area of a guide plate (40) of the absorber (4), can be caused to mesh with centering pins pointing in the direction of the absorber from the connection head.
28 Citations
23 Claims
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1. A carbon dioxide absorber for a rebreathing system, the carbon dioxide absorber comprising:
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a connection head at the rebreathing system, said connection head including a pivotable mount; an absorber housing; a guide plate on a front side of said absorber housing, said guide plate being pushed into said pivotable mount of said connection head; guide plate gas ducts arranged concentrically at said guide plate; connection head gas ducts provided in said connection head and with a design corresponding to said guide plate gas ducts, said guide plate gas ducts for connection to said connection head gas ducts; guide grooves between said guide plate and said absorber housing for connecting said guide plate to said mount; centering pins pointing in a direction of said absorber housing from said connection head; and centering means in one or more of said guide plate and said absorber housing, said centering means for meshing with said centering pins from said connection head; said pivotable mount being pivotable between a first position and a second position, said first position arranging said pivotable mount adjacent said connection head, said second position arranging said pivotable mount spaced from said connection head and said centering pins. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A rebreathing system with carbon dioxide absorber comprising:
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a rebreathing system connection head including a pivotable mount, said connection head having connection head gas ducts provided in said connection head, said connection head having centering pins pointing outwardly from said connection head; an absorber housing with a guide plate on a front side of said absorber housing, said guide plate for being pushed into said pivotable mount of said connection head, said guide plate including guide plate gas ducts arranged concentrically at said guide plate with a design corresponding to said connection head gas ducts, said connection head gas ducts for connection to said guide plate gas ducts, guide grooves being provided between said guide plate and said absorber housing for connecting said guide plate to said mount; and centering means in one or more of said guide plate and said absorber housing, said centering means for meshing with said centering pins from said connection head, said centering means defining upper positioning grooves arranged opposite each other with corresponding said centering pins in an area of said guide grooves, said centering means further defining lower positioning grooves at said absorber housing, said lower positioning grooves extending flush with said upper positioning grooves and for meshing with free ends of said centering pins. - View Dependent Claims (9, 10, 11)
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12. A carbon dioxide absorber arrangement in a rebreathing system, the absorber arrangement comprising:
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an absorber housing for holding a carbon dioxide absorber material, said absorber housing defining ducts for bringing breathing gas in contact with the carbon dioxide absorber material; a guide plate mounted on one side of said absorber housing, one of said guide plate and said absorber housing defining a positioning groove; a pivotable mount adapted to connect to said guide plate, said pivotable mount and said guide plate being shaped to have said guide plate slide into said pivotable mount in a direction along said one side of said absorber housing; a connection head adapted to connect to the rebreathing system and defining connection head ducts in communication with the rebreathing system, said pivotable mount being pivotally connected to said connection head to bring said ducts of said absorber housing into communication with said ducts of said connection head; a centering pin extending from said connection head in a direction of said absorber housing, said centering pin cooperating with said positioning groove to align said ducts of said absorber housing with said ducts of said connection head; said pivotable mount being pivotable between a first position and a second position, said first position arranging said ducts of said absorber housing in communication with said ducts of said connection head, said second position arranging said pivotable mount spaced from said connection head and said centering pin. - View Dependent Claims (13)
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14. A carbon dioxide absorber cartridge for a rebreathing system, the carbon dioxide absorber cartridge comprising:
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an absorber housing, the absorber housing being configured to connect with a pivotable mount of a connection head of a rebreathing system; a guide plate provided as a front side of the absorber housing, the guide plate being configured for insertion into the pivotable mount of the connection head; guide plate gas ducts arranged concentrically at the guide plate, and configured to correspond to and connect with gas ducts in the connection head; guide grooves defined by at least one of the guide plate and a portion of the absorber housing for connecting the guide plate to the mount, the guide grooves arranged opposite each other on lateral sides of the guide plate and substantially parallel to a direction of insertion into the connection head; upper positioning grooves arranged opposite each other on lateral sides of the guide plate and in an area of the guide grooves, and substantially along a line perpendicular to the direction of insertion and bisecting the concentrically arranged gas ducts, the upper positioning grooves being configured to mesh with centering pins extending from the connection head which point in a direction of the absorber housing when the absorber is inserted into the pivotable mount and the mount is pivoted from a second position arranging the pivotable mount spaced from the connection head and the centering pins to a first position arranging the pivotable mount adjacent the connection head. - View Dependent Claims (15, 16, 17, 18)
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19. An absorber for a rebreathing system, the absorber comprising:
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an absorber housing first side; a plurality of gas ducts arranged in said first side, one gas duct of said plurality of gas ducts being arranged concentrically around a gas duct axis, another of said plurality of gas ducts being arranged adjacent said one gas duct; an absorber housing second side extending away from said first side in a direction of said gas duct axis; first and second guide grooves arranged in said second side, each of said first and second guide grooves having a longitudinal axis, said longitudinal axes being arranged parallel to each other and extending in an insertion direction, said first and second guide grooves being arranged on diametrically opposite sides of said plurality of gas ducts, said first and second guide grooves being adapted to insert the absorber into a mount of the rebreathing system in said insertion direction, said first and second guide grooves being adapted to fix said absorber with respect to the mount of the rebreathing system in directions perpendicular to said insertion direction; first and second positioning openings arranged in said first side on diametrically opposite sides of said plurality of gas ducts, each of the first and second positioning openings being delimited by stop surfaces on diametrically opposite sides of each of said first and second openings with respect to said insertion direction, said stop surfaces being adapted to fix the absorber both forward and backward in said insertion direction with respect to a connection head of the rebreathing system, wherein said first and second guide grooves, and said first and second positioning openings are arranged to align said plurality of gas ducts of the absorber with gas ducts of the connection head. - View Dependent Claims (20, 21, 22, 23)
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Specification