Multiway valve
First Claim
1. A flow shut-off element comprising:
- a valve body having an inner cavity and a plurality of accesses communicating with said inner cavity configured to allow a flow of fluid, said valve body having an inner perimetric wall forming said inner cavity;
a selector movable relative to said valve body into a predetermined number of operating positions, said selector being active in said inner cavity to form, as a result of movements into said operating positions, predetermined paths in which the fluid flow is permitted or shut off between said accesses, said selector comprising a projecting portion configured to be inserted, in operating conditions, into the inner cavity of said valve body, relative movements of said selector with respect to said valve body causing different operating positions to be reached, said projecting portion being inserted in a fluid-tight way into the inner cavity of the valve body;
said selector having at least one aperture;
said selector having a circular ring essentially coaxial with said projecting portion;
an auxiliary element associated with said valve body and made in the form of an independent body, said auxiliary element being essentially discoid in shape and having a central through cavity, said inner perimetric wall passing through said central through cavity, said auxiliary element having a surface facing said selector, said surface having predetermined visual representations, said representations including at least one of graphic symbols, alphanumeric indications, or cobra relating to the paths in which the fluid flow is shut off or permitted between said accesses, wherein different relative positions of mid selector with respect to said valve body provide visual access through said aperture to corresponding visual representations of said surface; and
positioning means configured to enable an operator to determine when one of said predetermined operating positions of said selector has been reached, wherein reaching one of mid predetermined operating positions is indicated by a snap fitting of a catch into a corresponding notch, said positioning means being configured to permit a relative rotation of said selector with respect to said valve body in only one direction;
said positioning means being arranged in said central through cavity; and
said positioning means being operative between said auxiliary element and said circular ring.
7 Assignments
0 Petitions
Accused Products
Abstract
What is provided is a flow shut-off element, particularly for use in the medical field of peritoneal dialysis, consisting of a valve body (2) having an inner cavity (3) and a plurality of accesses (4, 5, 6); a selector having a projecting portion inserted into the inner cavity of the valve body and movable relatively to the latter into a predetermined number of operating positions to create predetermined paths in which the fluid flow is permitted and/or shut off between the said accesses. Also provided is an auxiliary element interposed in a removable way between the valve body and the selector, this element having positioning means to enable an operator to determine when one of the said predetermined operating positions of the selector has been reached.
98 Citations
19 Claims
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1. A flow shut-off element comprising:
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a valve body having an inner cavity and a plurality of accesses communicating with said inner cavity configured to allow a flow of fluid, said valve body having an inner perimetric wall forming said inner cavity; a selector movable relative to said valve body into a predetermined number of operating positions, said selector being active in said inner cavity to form, as a result of movements into said operating positions, predetermined paths in which the fluid flow is permitted or shut off between said accesses, said selector comprising a projecting portion configured to be inserted, in operating conditions, into the inner cavity of said valve body, relative movements of said selector with respect to said valve body causing different operating positions to be reached, said projecting portion being inserted in a fluid-tight way into the inner cavity of the valve body;
said selector having at least one aperture;
said selector having a circular ring essentially coaxial with said projecting portion;an auxiliary element associated with said valve body and made in the form of an independent body, said auxiliary element being essentially discoid in shape and having a central through cavity, said inner perimetric wall passing through said central through cavity, said auxiliary element having a surface facing said selector, said surface having predetermined visual representations, said representations including at least one of graphic symbols, alphanumeric indications, or cobra relating to the paths in which the fluid flow is shut off or permitted between said accesses, wherein different relative positions of mid selector with respect to said valve body provide visual access through said aperture to corresponding visual representations of said surface; and positioning means configured to enable an operator to determine when one of said predetermined operating positions of said selector has been reached, wherein reaching one of mid predetermined operating positions is indicated by a snap fitting of a catch into a corresponding notch, said positioning means being configured to permit a relative rotation of said selector with respect to said valve body in only one direction;
said positioning means being arranged in said central through cavity; and
said positioning means being operative between said auxiliary element and said circular ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification