Multi-Way Valve and Method of Producing Same
First Claim
1. A multi-way valve for use in medicine or medical technology with at least one basic housing through which a medium can flow at least in sections and in which an actuator is held in a rotating manner about a central axis, wherebythe basic housing has at least two connection points for the inflow and outflow of the medium and forms an actuator receptacle which has a peg arranged concentrically in relation to the central axis and on the inside of the basic housing a radially encircling cut-out, andthe actuator has an operating element and an essentially hollow cylindrical section which holds the peg of the actuator receptacle at least in sections, has at least one throughflow opening for the fluidic connection of at least two connection points and, on the outer side of the cylindrical section, at least one radially encircling moulding andthe peg of the actuator receptacle has at least one counterbearing for the actuator to form a sealing surface in the area of at least one connection point,whereinthe peg has at least one flattened area on the circumference in relation to the central axis and the moulding of the actuator engages in the cut-out of the actuator receptacle in order to fix the actuator in the actuator receptacle in a positive-locking and fluid-tight manner and the throughflow openings of the actuator are designed as gates which are open at the end of the hollow symmetrical section of the actuator.
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Accused Products
Abstract
The present invention relates to a multi-way valve for use in medicine or medical technology, having at least one basic housing through which a medium can flow in sections, and having an actuator which is held in said basic housing so as to be rotatable about a central axis, wherein the basic housing has at least two connection points for the inflow and outflow of the medium and forms an actuator receptacle which has a peg arranged concentrically with respect to the central axis and which has, on the inner side of the basic housing, a radially encircling cutout, and wherein the actuator has a control element, a substantially hollow cylindrical section which receives the peg of the actuator receptacle at least in sections, at least one throughflow opening for the fluidic connection between two connection points, and at least one radially encircling moulding on the outer side of the cylindrical section, and wherein the peg of the actuator receptacle has at least one counterbearing for the actuator to form a sealing surface in the region of at least one connection point. The invention is characterized in that the peg has at least one flattened portion on the circumference relative to the central axis, and the moulding of the actuator engages into the cutout of the actuator receptacle in order to fix the actuator in the actuator receptacle in a positively locking and fluid-tight manner.
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Citations
18 Claims
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1. A multi-way valve for use in medicine or medical technology with at least one basic housing through which a medium can flow at least in sections and in which an actuator is held in a rotating manner about a central axis, whereby
the basic housing has at least two connection points for the inflow and outflow of the medium and forms an actuator receptacle which has a peg arranged concentrically in relation to the central axis and on the inside of the basic housing a radially encircling cut-out, and the actuator has an operating element and an essentially hollow cylindrical section which holds the peg of the actuator receptacle at least in sections, has at least one throughflow opening for the fluidic connection of at least two connection points and, on the outer side of the cylindrical section, at least one radially encircling moulding and the peg of the actuator receptacle has at least one counterbearing for the actuator to form a sealing surface in the area of at least one connection point, wherein the peg has at least one flattened area on the circumference in relation to the central axis and the moulding of the actuator engages in the cut-out of the actuator receptacle in order to fix the actuator in the actuator receptacle in a positive-locking and fluid-tight manner and the throughflow openings of the actuator are designed as gates which are open at the end of the hollow symmetrical section of the actuator.
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12. The multi-way valve in accordance with claim 12, wherein
the retaining ring has a radially circumferential sealing section and/or positioning section.
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14. A method of producing a multi-way valve comprising the steps:
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producing the basic housing and the actuator; placing the basic housing and the actuator in an assembly device; inserting and pressing in of the hollow cylindrical section of the actuator into the actuator receptacle; and
,ending the pressing-in procedure on reaching a predetermined pressing-in depth, which is determined in particular by a defined stop.
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15. The method in accordance with claim 15, wherein
the stop is an integral part of the circumferential moulding in the hollow cylindrical section of the actuator and/or the cut-out in the actuator receptacle and more particularly the retaining joint.
Specification