Abstract:
A single-use, single-patient, or patient-specific tubing set (300) is disclosed. The tubing set (300) includes at least one check valve (304), along with a use indicator (320). This use indicator (320) provides a visual indication when the tubing set (300) has been used for an injection. In this regard, a piston (340) moves from one position to another when exposed to a certain fluid pressure.
Abstract:
A ram assembly (110) for a power injector (10) is disclosed having an inner ram (120) that is movable relative to an outer ram (140). One or more ram couplers (158) each include a cam slot (164) and are slidably interconnected with an end (150) of the outer ram (140). The inner ram (120) includes a cam (128) that is disposed within a cam slot (164) of its corresponding ram coupler (158). Relative movement between the inner ram (120) and the outer ram (140) moves the various ram couplers (158) relative to the outer ram end (150) by the camming effect between the cams (128) and the cam slots (164). The ram couplers (158) may be used to establish both a coupled state and an uncoupled state or condition with a syringe plunger coupler (34) of a syringe plunger (32) for a power injector syringe (28).
Abstract:
Some injectors of the invention may include a fluid drive (18) responsive to pressure of a working fluid (e.g., liquid, pneumatic, or both) to impart a sequence of forces to drive a delivery device (22) (e.g., a syringe) to deliver a medical fluid (e.g., a contrast agent, a radiopharmaceutical, a drug, or a combination thereof). Some injectors may include a multimedia tube configured to pass a working fluid (e.g., air) and a light signal (e.g., infrared). Some injectors may include a peristaltic drive responsive to pressure of a working fluid.
Abstract:
Syringes for use with medical fluid injectors. In certain aspects, the syringe includes a body having a longitudinal axis, a forward end, and a rearward end. At least one syringe mating section is coupled to the body of the syringe and is adapted to operatively engage an injector. In some embodiments, the syringe mating section includes first, second, and third flanges extending outwardly from the body along a plane substantially perpendicular to the longitudinal axis. In some embodiments, the syringe mating section includes a first flange having a cross-section of a parallelogram and a second flange having a tapered surface. In some embodiments, the syringe mating section includes a flange having an L-shaped cross-section. Other embodiments of the syringe mating section may include yet other appropriate designs.
Abstract:
The invention relates to a radiation shielded syringe assembly that includes a radiopharmaceutical syringe and a radiation shield (101) disposed about at least a portion of the syringe. The radiation shield may include a needle cap ejector (155) to assist a user in removing a needle cap (125) from a needle of the syringe (e.g., to perform an injection). For instance, in some embodiments, the user may press/push the needle cap ejector to detach the needle cap from the needle of the syringe. The radiation shield and needle cap ejector may be designed such that the needle cap may be removed from the needle of the syringe while the user is shielded from undesired exposure to radiation emitted from the radiopharmaceutical within the syringe.
Abstract:
The invention relates to radiation shielding for use with radiopharmaceutical syringes. For example, in at least some regards, the invention relates to a syringe radiation shield that includes a sleeve having a syringe receptacle defined therein to accommodate a barrel of the syringe. In addition, this syringe radiation shield may also include a cover having a plunger receptacle defined therein to accommodate a plunger of the syringe. The sleeve and the cover may be removably coupled with one another so that the syringe can be housed within the syringe radiation shield, for example, during administration of a radiopharmaceutical from the syringe.
Abstract:
The invention relates to an adapter for a syringe plunger. The adapter of some embodiments may include a first side adapted to interface with a syringe plunger and an opposing a second side adapted to interface with a drive ram of a medical fluid injector. The adapter may include a peripheral side surface exhibiting a thickness and may include what may be characterized as at least one mating section adapted to engage with the syringe plunger. The mating section(s) may include a channel extending through the entire thickness of the adapter. In some embodiments, the mating section(s) may include a stop adjacent the channel that extends less than the entirety of the thickness of the adapter.
Abstract:
The present invention relates to heat-retaining syringe jackets for reducing the cooling rate of medical fluids held inside syringes and methods of using such syringe jackets. An exemplary syringe jacket of the invention may include a material that experiences a phase transition at a phase transition temperature. Additionally or alternatively, the exemplary syringe jacket may include a material exhibiting a high specific heat.
Abstract:
Certain embodiments of the invention relate to a radiopharmaceutical system having a shielded cordless injector and various radiopharmaceutical pig and syringe structures that permit the syringe to remain in the pig during transportation and use of the syringe. In some embodiments, the shielded cordless injector may include an injector, a radiation shield disposed at least partially about the injector, a drive coupled to the injector, and an energy storage device coupled to the drive. The pig may have a computer with a display screen that displays a radioactivity level of a radiopharmaceutical and/or a desired (e.g., correct) unit dose volume of a radiopharmaceutical to be administered to a patient.