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US 9,308,316 B1Granted
Adapter and syringe for front-loading medical fluid injector
AssigneeLiebel-Flarsheim Company
InventorsFrank M. Fago, Robert Ziemba, Gary S. Wagner
Life of this patent
Estimating the term…
Abstract
Various structures are used in a front-loading injector, for mounting the syringe to the injector and/or preventing leakage of spilled fluid from an external surface of a syringe into the vicinity of the drive ram. A conically-shaped structure on the rearward end of the syringe is specifically disclosed.
Claims179
An injector assembly, comprising:
- an injector comprising a housing having an opening defined therein, a motor drive, and a drive ram coupled to said motor drive and extendible from the housing through the opening;
- and
- a syringe having a body with a cylindrical interior wall, a closed forward end with a discharge opening therein, and an open rearward end, a plunger mounted within the body in sealing contact with the cylindrical interior wall of the body, and an outwardly-extending structure on an external surface of the body, the structure extending radially outward and tapering axially toward the rearward end of the body, the syringe mountable to the housing at the opening.
An injector assembly, comprising:
- an injector comprising a housing having an opening defined therein, a motor drive, and a drive ram coupled to the motor drive and extendible from the housing through the opening;
- and
- a syringe having a body with a cylindrical interior wall, a closed forward end with a discharge opening therein, and an open rearward end, a plunger mounted within the body in sealing contact with the cylindrical interior wall of the body, and a structure with a conically-shaped outer surface external to the body, the structure extending outward and tapering axially toward the rearward end of the body, the syringe mountable to the housing at the opening.
An injector assembly, comprising:
- an injector comprising a housing having an opening defined therein, a motor drive, and a drive ram coupled to said motor drive and extendible from the housing through the opening;
- and
- a syringe having a body with a cylindrical interior wall, a closed forward end with a discharge opening therein, and an open rearward end, a plunger mounted within the body in sealing contact with the cylindrical interior wall of the body, and an outwardly-extending structure at least a portion of which is conically-shaped and tapers away from the forward end of the body, the syringe mountable to the housing at the opening.
An injector assembly, comprising:
- an injector comprising a housing having an opening defined therein, a motor drive, and a drive ram coupled to said motor drive and extendible from the housing through the opening;
- and
- a syringe having a body with a cylindrical interior wall, a closed forward end with a discharge opening therein, and an open rearward end, a plunger mounted within the body in sealing contact with the cylindrical interior wall of the body, and a structure disposed about and extending outwardly from the body, wherein at least a portion of a surface of the structure declines in radius as it extends toward the rearward end of the body, the syringe mountable to the housing at the opening.
An injector assembly, comprising:
- an injector housing having a front face with an opening defined therein, an interior surface of the opening defining a conically-shaped surface and a syringe engagement means;
- a motor drive;
- and
- an injector ram coupled to said motor drive and designed to pass into and out of the injector housing through the opening.
1 more element
An injector assembly, comprising:
- an injector comprising:
- a housing having an opening defined therein;
- a motor drive;
- and
- a drive ram coupled to said motor drive and extendible through the opening in the housing;
- and
- a syringe comprising:
- a body having an open rearward end, and a closed forward end that has a discharge opening defined therein;
- a plunger located within the body;
- and
- a radially, outwardly-extending structure on an external surface of the body, the structure tapering axially toward the rearward end of the body, wherein the structure is arcuately disposed about the drive ram when the syringe is mounted to the injector and at least at some point when the drive ram is extended through the opening in the injector and into the body of the syringe.
8 more elements
An injector assembly, comprising:
- an injector comprising:
- a housing having an opening defined therein;
- a motor drive;
- and
- a drive ram coupled to said motor drive and extendible through the opening in the housing;
- and
- a syringe comprising:
- a body having an open rearward end, and a closed forward end that has a discharge opening defined therein;
- a plunger located within the body;
- and
- a conically-shaped structure on an external surface of the body, the structure tapering axially toward the rearward end of the body, wherein the structure is arcuately disposed about the drive ram when the syringe is mounted to the injector and at least at some point when the drive ram is extended through the opening in the injector and into the body of the syringe.
8 more elements
An injector assembly, comprising:
- an injector comprising:
- a housing having an opening defined therein;
- a motor drive;
- and
- a drive ram coupled to said motor drive and extendible through the opening in the housing;
- and
- a syringe comprising:
- a body having an open rearward end, and a closed forward end that has a discharge opening defined therein;
- a plunger located within the body;
- and
- an outwardly-extending structure on an external surface of the body, at least a portion of the structure being conically-shaped and tapering away from the forward end of the body, wherein the structure is arcuately disposed about the drive ram when the syringe is mounted to the injector and at least at some point when the drive ram is extended through the opening in the injector and into the body of the syringe.
8 more elements
An injector assembly, comprising:
- an injector comprising:
- a housing having an opening defined therein;
- a motor drive;
- and
- a drive ram coupled to said motor drive and extendible through the opening in the housing;
- and
- a syringe comprising:
- a body having an open rearward end, and a closed forward end that has a discharge opening defined therein;
- a plunger located within the body;
- and
- a structure disposed about and extending outwardly from the body, wherein at least a portion of a surface of the structure declines in radius as it extends toward the rearward end of the body, wherein the structure is arcuately disposed about the drive ram when the syringe is mounted to the injector and at least at some point when the drive ram is extended through the opening in the injector and into the body of the syringe.
8 more elements
Dependencies are inferred from the claim text.