Remote injection device

• US 5,514,071 A
• Filed: 10/06/1994
• Issued: 05/07/1996
• Est. Priority Date: 10/06/1994
• Status: Expired due to Fees

• Current Assignee: The Carl F. Sielaff Trust
• Original Assignee: Carl F. Sielaff Jr, John F. Trudeau
• Inventors: Trudeau, John F., Sielaff, Carl F. Jr.
• Primary Examiner(s): Sykes, Angela D.
• Assistant Examiner(s): Lacyk, John P.
• Application Number:
  US08/319,316
• Time in Patent Office: 579 Days
• Field of Search: 600/1-8, 128/DIG. 1
• US Class Current: 600/3
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1785 comprising radioactive shield means syringe shields or holders for storage of radioactive sources G21F5/018

Abstract

An apparatus for remotely administering radioactive material by a syringe into a patient where the syringe is encapsulated in a lead housing. A lever mechanism is operatively attached to a plunger located within the housing via a rod. The lever mechanism activates the plunger against the plunger head of the syringe during the administration of the radioactive material. A specially designed carrier transports the apparatus from the radioactive source to the patient.

Claims

1. An apparatus for remote injection of radioactive solution into a patient, said apparatus adapted to hold a syringe having a needle, syringe plunger and a barrel for containing a quantity of the radioactive solution wherein said radioactive solution emits radioactive rays therefrom, said apparatus comprising:

a cylindrical shield constructed of radiation attenuating material for enclosing the syringe;

a housing comprising a first portion and second portion hingedly attached thereto and opening to an inner bore disposed in said housing for encapsulating the syringe shield, said housing having a needle aperture at one end of said housing adapted for insertion of the needle into the syringe and projecting therefrom;

said housing comprising a reciprocating plunger within the inner bore of the housing;

an actuating means for selectively moving the plunger in axial movement against the syringe plunger to cause penetration by the needle; and

connecting means for securing the actuating means in axial alignment to the plunger disposed in the housing.

2. The apparatus of claim 1, wherein the housing is essentially rectangular and constructed of high density material, said housing having a pair of lateral sides extending the axial length of the housing, wherein the first portion of the housing has an angular ledge extending along each lateral side of the housing, and the second portion of the housing has a corresponding angular cut out extending along each lateral side of the housing wherein when the first portion and second portion of the housing are in a closed position and forming a seam around the periphery of the housing, radioactive rays do not escape the seam of the housing.

3. The apparatus of claim 1, wherein the housing further comprises at least one lead rod extending the axial length of the housing and fixedly attached to the second portion adjacent the inner bore.

4. The apparatus of claim 3 wherein the cylindrical shield has a annular groove proximate one end of the shield and the housing has a pair of vertical pins traversing the inner bore wherein the annular groove is adapted to receive the pins for positioning the cylindrical shield in the inner bore of the housing.

5. The apparatus of claim 4 wherein the housing further comprises a backstop located in the inner bore wherein the cylindrical shield is disposed in the inner bore between the backstop and needle aperture.

6. The apparatus of claim 1 wherein the hinging means of the housing comprises extending legs for support when the housing is in the open position.

7. The apparatus of claim 5, wherein the housing further comprises a back plate having a cavity for housing the plunger.

8. The apparatus of claim 7, wherein the connecting means is a rod connected at one end to the plunger through an aperture in the back plate and connected at a distal end to the actuating means.

9. The apparatus of claim 8, wherein the actuating means is a lever mechanism having a lever handle operatively connected to said rod.

10. The apparatus of claim 9 wherein the apparatus further comprises positioning means for aligning the housing such that the needle is proximate to a predetermined point of penetration.

11. The apparatus of claim 10, wherein the positioning means comprises a rotatable surface, said housing and actuating means fixedly attached to the rotatable surface.

12. The apparatus of claim 11, wherein the positioning means further comprises a cart having a planar surface, said rotatable surface attached thereon.

13. The apparatus of claim 12, wherein the rotatable surface comprises a top plate for fixedly attaching housing and actuating means thereon, said rotatable surface having a forward end extending beyond a front end of the planar surface of the cart.

14. The apparatus of claim 13, wherein the forward end has a needle guard integral therewith and extending beyond said front end of the planar surface of cart to protect said needle.

15. The apparatus of claim 14, wherein said cart has height adjustment means for raising and lowering the planar surface.

16. The apparatus of claim 15, wherein the cart has wheels extending from the lower frame supporting the cart for movement over a floor in a stable upright configuration.

17. An apparatus for remote injection of radioactive solution into a patient, said apparatus adapted to hold a syringe having a needle, syringe plunger and a barrel for containing a quantity of the radioactive solution, wherein said radioactive solution emits radioactive rays therefrom, said apparatus comprising:

a shielding means for enclosing said syringe, said shielding means constructed of radiation attenuating material;

a means for encapsulating the syringe and shielding means, wherein the encapsulating means virtually eliminates radioactive rays from escaping;

a means for transporting the syringe and encapsulating means to a patient;

a means for inserting the needle to the syringe through the encapsulating means;

a means for positioning the needle to a predetermined point of penetration;

a means for remotely actuating the syringe to cause penetration by the needle and inject the quantity of radioactive solution to the point of penetration.

18. A method of remotely injecting radioactive solution into a patient wherein said radioactive solution emits radioactive rays therefrom, comprising the steps of:

shielding syringe in a radiation attenuating material, said syringe having a barrel for containing a quantity of radioactive solution therein;

encapsulating the syringe, wherein the encapsulating means virtually eliminates radioactive rays from escaping;

transporting the syringe and encapsulating means to a patient;

inserting a needle to the syringe through the encapsulating means;

positioning the needle to a predetermined point of penetration; and

remotely actuating the syringe to cause penetration by the needle for injecting the quantity of radioactive solution to the point of penetration.