Dual port syringe
First Claim
Patent Images
1. An injection system comprising:
- (a) a syringe including a barrel defining a pumping chamber, a longitudinal axis, and at least one port for providing fluid-flow communication with said pumping chamber;
said barrel having a distal end and a proximal end;
(i) said distal end including a flat wall section normal to said longitudinal axis;
(ii) said syringe including a plunger constructed and arranged within said pumping chamber for reciprocal motion between a position adjacent to said proximal end and said distal end;
(iii) said at least one port in said syringe including an inlet port and an outlet port;
said outlet port being defined by said flat wall section;
(iv) said syringe including an inlet port housing surrounding said inlet port, and an outlet port housing surrounding said outlet port;
said outlet port housing protecting from said flat wall section; and
(b) a syringe holder arrangement including;
(i) a mounting chamber body constructed and arranged to hold said syringe;
said mounting chamber body including a loading end for receipt of said syringe;
(ii) a door member movable relative to said body to allow for selective opening and closing of said loading end of said mounting chamber body;
(A) said door member defining a flat, planar surface for abutting engagement with said flat wall section of said syringe; and
(B) said door member defining a slot for slidable communication with said outlet port housing.
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Accused Products
Abstract
A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. During a fill operation, a piston is moved within the syringe to drawn fluid from the reservoir into the syringe through the upper port. During injection operation, the piston moves in an opposite direction to force fluid out of the syringe through the lower port.
190 Citations
26 Claims
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1. An injection system comprising:
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(a) a syringe including a barrel defining a pumping chamber, a longitudinal axis, and at least one port for providing fluid-flow communication with said pumping chamber;
said barrel having a distal end and a proximal end;(i) said distal end including a flat wall section normal to said longitudinal axis; (ii) said syringe including a plunger constructed and arranged within said pumping chamber for reciprocal motion between a position adjacent to said proximal end and said distal end; (iii) said at least one port in said syringe including an inlet port and an outlet port;
said outlet port being defined by said flat wall section;(iv) said syringe including an inlet port housing surrounding said inlet port, and an outlet port housing surrounding said outlet port;
said outlet port housing protecting from said flat wall section; and(b) a syringe holder arrangement including; (i) a mounting chamber body constructed and arranged to hold said syringe;
said mounting chamber body including a loading end for receipt of said syringe;(ii) a door member movable relative to said body to allow for selective opening and closing of said loading end of said mounting chamber body; (A) said door member defining a flat, planar surface for abutting engagement with said flat wall section of said syringe; and (B) said door member defining a slot for slidable communication with said outlet port housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for mounting a syringe comprising steps of:
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(a) positioning a syringe through a front aperture in a syringe holder arrangement; (b) pivoting a door of the syringe holder arrangement to close the front aperture and about a front face of said syringe, said door including a planar surface; and (c) said step of positioning a syringe includes; (i) providing a syringe having a first end at the syringe front face and defining a fluid port, and a second end slidably receiving a plunger, wherein said front face of said syringe is planar with an outlet port housing extending therefrom surrounding the fluid port; (ii) orienting said syringe through said front aperture such that said second end passes through said front aperture followed by said first end; and (iii) inserting said syringe into an interior of a pressure containment sleeve; and (d) said step of pivoting a door includes sliding said planar surface of said door relative to said planar, front face of said syringe.
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17. An injection system comprising:
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(a) a syringe including a barrel defining a pumping chamber, a longitudinal axis, and at least one port for providing fluid-flow communication with said pumping chamber;
said barrel having a distal end and a proximal end;(i) said distal end including a flat wall section normal to said central, longitudinal axis; (ii) said syringe including a plunger constructed and arranged within said pumping chamber for reciprocal motion between a position adjacent to said proximal end and said distal end; (iii) said at least one port in said syringe including an inlet port and an outlet port;
said outlet port being defined by said flat wall section;(iv) said syringe including an inlet port housing surrounding said inlet port, and an outlet port housing surrounding said outlet port;
said outlet port housing projecting from said flat wall section; and(b) a syringe holder arrangement including; (i) a mounting chamber body constructed and arranged to hold said syringe;
said mounting chamber body including a loading end for receipt of said syringe;(ii) a door member movable relative to said body to allow for selective opening and closing of said loading end of said mounting chamber body; (A) said door member defining a flat, planar surface for abutting engagement with said flat wall section of said syringe; and (B) said door member defining an opening for communication with said outlet port housing. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A method for mounting a syringe comprising steps of:
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(a) providing a syringe including a barrel defining a pumping chamber, a longitudinal axis, and at least one port for providing fluid-flow communication with said pumping chamber;
said barrel having a distal end and a proximal end;(i) said distal end including a flat wall section normal to said central, longitudinal axis; (ii) said syringe including a plunger constructed and arranged within said pumping chamber for reciprocal motion between a position adjacent to said proximal end and said distal end; (iii) said at least one port in said syringe including an inlet port and an outlet port;
said outlet port being defined by said flat wall section;(iv) said syringe including an inlet port housing surrounding said inlet port, and an outlet port housing surrounding said outlet port;
said outlet port housing projecting from said flat wall section; and(b) providing a syringe holder arrangement including a mounting chamber body and a door member movable relative to said body to allow for selective opening and closing of said front aperture of said mounting chamber body; (i) said door member defining a flat, planar surface for abutting engagement with said flat wall section of said syringe; and (ii) said door member defining an opening for communication with said outlet port housing; (c) positioning said syringe through a front aperture of said mounting chamber body; and (d) pivoting said door member to close said front aperture and abut a front face of said syringe. - View Dependent Claims (25, 26)
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Specification