Bellows syringe fluid delivery system
First Claim
1. A bellows syringe for a fluid delivery system, the bellows syringe comprising:
- a cap member defining an internal cavity and a discharge port, the cap member further comprising a depending skirt portion;
a bellows member disposed in the internal cavity and held in a compressed state in the internal cavity; and
a base member,wherein the bellows member is held in the compressed state in the internal cavity by engagement between at least one retaining tab provided on one of the cap member and the base member and engaged with at least one catch member on the other of the cap member and the base member,and wherein the base member is adapted for connection to a piston head of a piston element of an injector.
3 Assignments
0 Petitions
Accused Products
Abstract
A bellows assembly for a fluid delivery system is a multi-component device that includes a cylindrical pressure jacket and a bellows syringe that is received within the pressure jacket. The bellows syringe includes a cap member and a bellows member. The bellows syringe in one embodiment is adapted to be secured to the pressure jacket by the cap member. The cap member is formed with a discharge port, which may be formed as conventional luer fitting. The discharge port is disposed coaxially within an annular wall on the outward facing side of the cap member and may be recessed within the annular wall. The bellows member is a hollow body that includes a series of bellows sections or rings. A distal end of the bellow member is formed with a discharge neck terminating in a discharge port, and the proximal end is formed with a closed end wall.
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Citations
23 Claims
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1. A bellows syringe for a fluid delivery system, the bellows syringe comprising:
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a cap member defining an internal cavity and a discharge port, the cap member further comprising a depending skirt portion; a bellows member disposed in the internal cavity and held in a compressed state in the internal cavity; and a base member, wherein the bellows member is held in the compressed state in the internal cavity by engagement between at least one retaining tab provided on one of the cap member and the base member and engaged with at least one catch member on the other of the cap member and the base member, and wherein the base member is adapted for connection to a piston head of a piston element of an injector. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A bellows assembly for association with a fluid delivery system, the bellows assembly comprising:
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a pressure jacket having a distal end and a proximal end and defining a throughbore therebetween; and a bellows syringe adapted for connection to the distal end of the pressure jacket, the bellows syringe comprising; a cap member defining an internal cavity and a discharge port, the cap member further comprising a depending skirt portion; a bellows member disposed in the internal cavity and held in a compressed state in the internal cavity; and a base member, wherein the bellows member is held in the compressed state in the internal cavity by engagement between at least one retaining tab provided on one of the cap member and the base member and engaged with at least one catch member on the other of the cap member and the base member. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A fluid delivery system comprising:
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a fluid injector comprising a reciprocally operable piston element having a piston head; a pressure jacket having a distal end and a proximal end and defining a throughbore therebetween, the pressure jacket proximal end engaged with the fluid injector such that the piston element is operable in the throughbore; and a bellows syringe adapted for connection to the distal end of the pressure jacket, the bellows syringe comprising; a cap member defining an internal cavity and a discharge port, the cap member further comprising a depending skirt portion; a bellows member disposed in the internal cavity and held in a compressed state in the internal cavity; and a base member, wherein the bellows member is held in the compressed state in the internal cavity by engagement between at least one retaining tab provided on one of the cap member and the base member and engaged with at least one catch member on the other of the cap member and the base member. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification