Stomach pump
First Claim
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1. Intubation apparatus comprising:
- a syringe having an end portion including an opening communicating with the interior of said syringe, anda valve assembly connected to said syringe end portion including a housing having a plurality of ports, a rotor member, said housing and rotor member being rotatably mounted with respect to each other;
first means for automatically setting said housing and rotor member into a selected one of a first portion of a plurality of operating positions relative to each other solely by rotating said housing relative to said rotor member, said plurality of operating positions corresponding to said plurality of ports;
means formed by said housing and rotor member for providing a fluid passage between a selected one of said ports and said opening in said syringe end portion upon setting said housing and rotor member in a corresponding selected operating position; and
second means including detent means for setting said housing and rotor member into a selected one of a second remaining portion of said plurality of operating positions by releasing said detent means and rotating said housing relative to said rotor member, whereby the provision of a fluid passage between one of said plurality of ports corresponding to one of the second portion of said plurality of operating positions and said syringe opening solely by rotating said housing relative to said rotor member is normally prevented.
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Abstract
Intubation apparatus in which a syringe, valve elements and other components of a stomach pump or the like are comprised in a unitary assembly made for a one-time or limited use. A single valve element controls flow of fluids to and from the syringe and is adjustable in indexing motions to place the syringe variously in communication with a tube to be inserted in a body opening and with tubes leading to a container of irrigating fluid, a waste container and a sample container.
62 Citations
17 Claims
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1. Intubation apparatus comprising:
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a syringe having an end portion including an opening communicating with the interior of said syringe, and a valve assembly connected to said syringe end portion including a housing having a plurality of ports, a rotor member, said housing and rotor member being rotatably mounted with respect to each other;
first means for automatically setting said housing and rotor member into a selected one of a first portion of a plurality of operating positions relative to each other solely by rotating said housing relative to said rotor member, said plurality of operating positions corresponding to said plurality of ports;
means formed by said housing and rotor member for providing a fluid passage between a selected one of said ports and said opening in said syringe end portion upon setting said housing and rotor member in a corresponding selected operating position; and
second means including detent means for setting said housing and rotor member into a selected one of a second remaining portion of said plurality of operating positions by releasing said detent means and rotating said housing relative to said rotor member, whereby the provision of a fluid passage between one of said plurality of ports corresponding to one of the second portion of said plurality of operating positions and said syringe opening solely by rotating said housing relative to said rotor member is normally prevented. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Intubation apparatus comprising:
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a syringe having an end portion including an opening communicating with the interior of said syringe; and a valve assembly connected to said syringe end portion, including a substantially cup-shaped housing having a bottom wall and circumferentially extending side wall having an upper edge surface, a plurality of ports being formed through said housing bottom wall and spaced along an arcuate path;
a rotor member rotatably disposed in said cup-shaped housing, said rotor member including a body portion having a radially extending channel formed therethrough, one end of said channel adapted to selectively move into fluid communication with said ports upon rotation of said rotor member relative to said housing, and an axially extending stem portion having a passage formed therethrough;
one end of said passage communicating with the other end of said channel and the end therof communicating with said opening in said syringe end portion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. Intubation apparatus comprising:
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a syringe having an end portion including an opening communicating with the interior of said syringe and a valve assembly connected to said syringe end portion including a housing having a plurality of ports;
a rotor member, said housing and rotor member being rotatably mounted with respect to each other;
means for setting said housing and rotor member into a selected one of a plurality of positions relative to each other, said plurality of positions corresponding to said plurality of ports;
means formed by said housing and rotor member for providing a fluid passage between a selected one of said ports and said opening in said syringe end portion upon setting said housing and rotor member in corresponding selected positions; and
means for normally preventing inadvertently setting said housing and rotor member into at least one of said plurality of positions whereby an inadvertent provision of a fluid passage between at least one of said plurality of ports corresponding to said at least one of said plurality positions and said syringe opening is normally prevented.
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Specification