Catheter valve

Claim 2

A normally closed catheter valve operable to be opened by actuation thereof, comprising a relatively fixed part with a through-flow bore, a rubber elastic valve hose means on the inside of the valve and adjoining the relatively fixed part substantially in extension of said bore, said valve hose means being closed in the non-actuated normal position of the valve by deformation of the hose means and being continuously open while the valve is actuated, a spring-loaded element, a spring operatively connected with said spring-loaded element, said spring-loaded element being operatively associated with said valve hose means and being movable relative to the relatively fixed part and operable by its movement in a direction opposite the spring force to open the closed hose means.

Claim 3

A catheter valve according to claim 1, characterized in that said spring-loaded element is a sleeve adapted to be placed over said relatively fixed part.

Claim 4

A catheter valve according to claim 2, characterized in that the sleeve is a rotary sleeve and the spring a torsion spring, and in that the hose means is twisted with a closed valve.

Claim 5

A catheter valve according to claim 2, characterized in that the sleeve is a sliding sleeve and the spring a coil spring, and in that the hose means is kinked with a closed valve.

Claim 6

A catheter valve according to claim 1, characterized in that the hose means closed by kinking is opened by axial displacement of said spring-loaded element.

Claim 7

A catheter valve according to claim 5, characterized in that the valve includes means securing the sleeve against rotary movements.

Claim 8

A catheter valve according to claim 1, characterized in that the means closed by twisting is by rotary movement of said spring-loaded element.

Claim 9

A catheter valve according to claim 7, characterized in that the valve includes means securing the sleeve against sliding movements.

Claim 10

A catheter valve according to claim 1, characterized in that the hose means provided with a bore includes a special kinking or twisting portion which has a smaller wall thickness at its ends than in the center, the bore being substantially cylindrical and the outer surface increasing at least approximately conically from both ends.

Claim 11

A catheter valve according to claim 9, characterized in that the valve hose means is connected both with the fixed part as also with the movable element.

Claim 12

A catheter valve according to claim 10, characterized in that the fixed part is provided with a support portion for the hand opening the valve.

Claim 13

A catheter valve according to claim 1, characterized in that the relatively fixed part is provided with a support portion for the hand opening the valve.

Claim 14

A normally closed catheter valve adapted to be connected to the end of a catheter tube and operable to be temporarily opened during actuation thereof, comprising two relatively movable valve elements arranged substantially coaxially to one another and defining therebetween a space, one of said elements being provided with a bore therethrough, a valve hose means located within said space, said valve hose means being connected with its one end to said one element substantially in extension of said bore and being operatively associated near its other end with the other of said two elements, said valve hose means leading to a discharge at the other end thereof and being closed in the normal non-actuated position of the catheter valve by deformation of the hose means, and means including spring means operatively connected with said two valve elements for normally urging the same into their normal position in which the catheter valve is closed by deformation of the hose means, while enabling temporary opening of the catheter valve by relative movement of said two elements which are automatically returned to the normally closed valve condition by the action of the spring means when released.

Claim 15

A normally closed catheter valve adapted to be connected to the end of a catheter tube and operable to be temporarily opened during actuation thereof, comprising two relatively movable valve elements arranged substantially coaxially to one another and defining therebetween a space, one of said elements being provided with a bore therethrough, a valve hose means located within said space, said valve hose means being connected with its one end to said one element substantially in extension of said bore and being operatively associated near its other end with the other of said two elements, said valve hose means leading to a discharge at the other end thereof and being closed in the normal non-actuated position of the catheter valve by deformation of the hose means, and means including spring means operatively connected with said two valve elements for normally urging the same into their normal position in which the catheter valve is closed by deformation of the hose means, while enabling temporary opening of the catheter valve by relative movement of said two elements which are automatically returned to the normally closed valve condition by the action of the spring means when released.

Claim 16

A catheter valve according to claim 13, wherein said valve hose means has a wall thickness in its center area which is different from the thickness in the end areas thereof to facilitate deformation of the hose means into the closed position thereof.

Claim 17

A catheter valve according to claim 13, characterized in that the valve hose means is closed by at least a single kink.

Claim 18

A catheter valve according to claim 13, characterized in that said valve hose means is closed by at least one fold of the hose means.

Claim 19

A catheter valve according to claim 13, characterized in that the valve hose means is closed by at least one twist.

Claim 20

A catheter valve according to claim 13, characterized in that the hose means provided with a bore includes a special kinking or twisting portion which has a smaller wall thickness at its ends than in the center, the bore being substantially cylindrical and the outer surface increasing at least approximately conically from both ends.

Claim 21

A catheter valve according to claim 1, wherein the hose means includes a special kinking or twisting portion which has a different wall thickness at its ends than in the center.

Claim 22

A normally closed catheter valve adapted to be connected to the end of a catheter hose, comprising two substantially coaxially arranged valve elements operable to telescope one within the other and defining therebetween a space, a valve hose means on the inside of said catheter valve, one of said elements being provided with a bore, said valve hose means, which is located within said space, being connected to said one element and being operatively associated with the other element, said valve hose means being closed in the normal non-actuated position of the catheter valve by deformation of the hose means and being open upon actuation of the valve, and spring means normally urging said two elements into their relative position in which said space is reduced and the hose means is deformed to close the catheter valve.

Claim 23

A normally closed catheter valve adapted to be connected to the end of a catheter hose, comprising two substantially coaxially arranged valve elements operable to telescope one within the other and defining therebetween a space, a valve hose means on the inside of said catheter valve, one of said elements being provided with a bore, said valve hose means, which is located within said space, being connected to said one element and being operatively associated with the other element, said valve hose means being closed in the normal non-actuated position of the catheter valve by deformation of the hose means and being open upon actuation of the valve, and spring means normally urging said two elements into their relative position in which said space is reduced and the hose means is deformed to close the catheter valve.

Claim 24

A normally closed catheter valve operable to be opened by actuation thereof comprising a relatively fixed part with a through-flow bore, a rubber elastic valve hose means on the inside of the valve and adjoining the relatively fixed part substantially in extension of said bore, said valve hose means being closed in the non-actuated normal position of the valve by deformation of the hose means and being continuously open while the valve is actuated, a spring-loaded element, a spring operatively connected with said spring-loaded element, said spring-loaded element being operatively associated with said valve hose means and being movable relative to the relatively fixed part in the axial direction of said bore and operable by its movement in a direction opposite the spring force to open the closed hose means.

Claim 25

A normally closed catheter valve operable to be opened by actuation thereof comprising a relatively fixed part with a through-flow bore, a rubber elastic valve hose means on the inside of the valve and adjoining the relatively fixed part substantially in extension of said bore, said valve hose means being closed in the non-actuated normal position of the valve by deformation of the hose means and being continuously open while the valve is actuated, a spring-loaded element, a spring operatively connected with said spring-loaded element, said spring-loaded element being operatively associated with said valve hose means and being movable relative to the relatively fixed part in the axial direction of said bore and operable by its movement in a direction opposite the spring force to open the closed hose means.

Claim 26

A catheter valve according to claim 21, wherein the hose means includes a special kinking portion which has a different wall thickness at its ends than in the center.