Injection shield and method for discharging a syringe containing radioactive material
First Claim
Patent Images
1. An injection shield for a syringe containing radioactive material, the syringe having a tubular body with a needle mounted upon an opening in one end of the body and a plunger mounted in an opening in the other end of the body, the injection shield comprising:
- a radiation-dense body having at least one radiation-dense jaw extending substantially the length of the tubular body of the syringe, the jaw mounted to move between an open position and a closed position, wherein in the closed position, the jaw abuts the body to shield at least a portion of the radioactive material within the body of the syringe and the plunger of the syringe projects from the shield in a predetermined direction, and wherein in the open position, the jaw moves to a predetermined position to allow the syringe to move in a direction away from the direction in which the syringe plunger is oriented when the jaw is in the closed position.
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0 Petitions
Accused Products
Abstract
A shielding device and method for injecting a patient with radioactive material from a syringe to reduce exposure of workers to the radioactive material in the syringe. After the injection, the syringe needle falls away from the shield, thereby minimizing the risk of contamination of the shield from the contaminated syringe needle.
99 Citations
29 Claims
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1. An injection shield for a syringe containing radioactive material, the syringe having a tubular body with a needle mounted upon an opening in one end of the body and a plunger mounted in an opening in the other end of the body, the injection shield comprising:
a radiation-dense body having at least one radiation-dense jaw extending substantially the length of the tubular body of the syringe, the jaw mounted to move between an open position and a closed position, wherein in the closed position, the jaw abuts the body to shield at least a portion of the radioactive material within the body of the syringe and the plunger of the syringe projects from the shield in a predetermined direction, and wherein in the open position, the jaw moves to a predetermined position to allow the syringe to move in a direction away from the direction in which the syringe plunger is oriented when the jaw is in the closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An injection shield for a syringe containing radioactive material, the syringe having a tubular body with a needle mounted on an opening in a first end of the body and a plunger mounted in an opening in a second end of the body, the second end of the body having a flange thereon, the injection shield comprising:
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a radiation-dense body having at least one radiation-dense jaw, the jaw having an upper edge and mounted to move between an open position and a closed position; wherein, in the closed position, at least a portion of the upper edge of the jaw is disposed beneath the flange of the syringe, with the flange abutting the upper edge of the jaw, and the plunger of the syringe projects from the shield in a predetermined direction; and wherein in the open position, the jaw moves to a predetermined position such that the upper edge of the jaw is not disposed beneath the flange of the syringe to allow the syringe to move in a direction away from the direction in which the syringe plunger is oriented when the jaw is in the closed position. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An injection shield for a syringe containing radioactive material, the syringe having a tubular body with a needle mounted upon an opening in one end of the body and a plunger mounted in an opening in the other flanged end of the body, the injection shield comprising,
a wall portion having opposing side edges; - and
two radiation-dense jaws, each jaw having a far side edge and a near side edge, the far side edge located away from the wall portion, each jaw pivotally mounted to the wall portion to locate the near side edge of the jaw adjacent to an associated side edge of the wall portion, the jaws pivotally mounted for movement between an open position and a closed position, wherein in the closed position, the far side edges of the jaws abut each other and cooperate with the wall portion to circumferentially enclose the radioactive material within the body of the syringe, the plunger of the syringe projecting from the shield in a predetermined direction, and in the open position, the far side edges of the jaws separate from each other a predetermined distance to allow the syringe to move away from the shield in a direction away from the direction in which the syringe plunger is oriented when the jaws are in the closed position. - View Dependent Claims (20, 21, 22, 23, 24)
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25. An injection shield for a syringe containing radioactive material, the syringe having a tubular body with a needle mounted upon an opening in one end of the body and a plunger mounted in an opening in the other end of the body adjacent to a flange, the injection shield comprising:
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a wall portion having opposing side edges and a radiation-dense window mounted therebetween; a stop mounted on the wall portion, the stop having an arm extending above the flange of the syringe; two radiation-dense jaws, each jaw having a far side edge and a near side edge and a finger tab, the far side edge located away from the wall portion, each jaw pivotally mounted to the wall portion to locate the near side edge of the jaw adjacent to the wall portion and to selectively move the jaw between an open position and a closed position, wherein in the closed position, the far side edges of the jaws abut each other in opposed alignment and cooperate with the wall portion to circumferentially enclose the radioactive material within the body of the syringe, the plunge of the syringe projecting from the shield in a predetermined direction, wherein the open position, the far side edges of the jaws separate from each other a predetermined distance to allow the syringe to move away from the shield in direction away from the direction in which the syringe plunger is oriented when the jaws are in the closed position; a finger tab mounted to each jaw; and a spring located between the finger tabs to bias the jaws to the closed position. - View Dependent Claims (26)
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27. A method of injecting the contents of a syringe containing a radioactive material, the syringe having a needle and a plunger, the method comprising:
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inserting the syringe into a predetermined position within a radiation-dense injection shield sized to allow the needle to project from the shield in one direction and the plunger of the syringe to project from the shield in a second direction; securing the syringe within the shield; moving the shield containing the syringe to a position for injection of the contents of the syringe; injecting the contents of the syringe while it is within the shield; and releasing the spent syringe from the shield in a direction away from the direction in which the plunger of the syringe projects, thereby avoiding contamination of the shield from contact with the needle. - View Dependent Claims (28)
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29. An injection shield for a syringe containing radioactive material, the syringe having a tubular body with a needle mounted upon an opening in a first end of the body and a plunger mounted in an opening in a second end of the body, the second end of the syringe body having a flange thereon the injection shield comprising,
a wall portion having opposing side edges and a radiation-dense window mounted therebetween; -
a stop mounted on the wall portion, the stop having an arm projecting toward the free edges of the jaws and sized to extend above the flange on the second end of the syringe; two radiation-dense jaws, each jaw having a far side edge and a near side edge and, the far side edge located away from the wall portion, each jaw pivotally mounted to the wall portion to locate the near side edge of the jaw adjacent to the wall portion and to selectively move the jaw between an open position and a closed position, wherein in the closed position, the free side edges of the jaws abut each other in opposed alignment and cooperate with the wall portion to circumferentially enclose the radioactive material within the body of the syringe, the plunger of the syringe projecting from the shield in a predetermined direction, wherein in the open position, the free side edges of the jaws separate from each other a predetermined distance to allow the syringe to move away from the shield in direction away from the direction in which the syringe plunger is oriented when the jaws are in the closed position; a finger tab mounted to each jaw; and a spring located between the finger tabs to bias the jaws to the closed position.
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Specification