Apparatus and method for injecting a pharmaceutical preparation in solid form

• US 5,549,560 A
• Filed: 01/09/1995
• Issued: 08/27/1996
• Est. Priority Date: 05/13/1992
• Status: Expired due to Term

• Current Assignee: Injectile Technologies GmbH
• Original Assignee: Gijsbertus G. P. Van De Wijdeven
• Inventors: Van de Wijdeven, Gijsbertus G. P.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): VANOVER, PERRY
• Application Number:
  US08/335,725
• Time in Patent Office: 596 Days
• Field of Search: 604/130-137, 604/272, 604/274, 604/256, 604/70, 604/62, 604/68-69, 604/60, 604/140-141, 604/61, 604/143-147, 604/46, 604/28, 604/51, 604/187, 604/57
• US Class Current: 604/130
• CPC Class Codes: A61M 37/0069 Devices for implanting pellets, e.g. markers or solid medicaments for introducing of radioactive sources for interstitial radiation therapy, i.e. brachytherapy A61N5/1027
• CPC Class Codes: F41B 11/85 for launching hypodermic projectiles

Abstract

The present invention relates to a method and a device for injecting humans and animals with a pharmaceutical preparation, wherein the preparation is held in a rigid carrier (5) and the carrier is carried through the skin into the body by means of gas pressure, and wherein during carrying of a rigid carrier (5) into the body by means of gas pressure the device with which the carrier is carried into the body is held against the body. The invention likewise relates to a device for injecting animals or humans with a pharmaceutical preparation, wherein a chamber (2) is present in which a carrier (5) containing the pharmaceutical preparation can be placed, a barrel (1) connecting onto this chamber and means for carrying the carrier by means of gas pressure through the barrel into the body for injecting, wherein means are present for blocking the use of the device when it is not pressed against a body.

Claims

1. Method for injecting humans and animals with a pharmaceutical preparation, wherein the preparation is held in a rigid carrier and wherein the carrier is carried through the skin into the body by means of gas pressure, characterized in that during carrying of the rigid carrier into the body by means of gas pressure the device with which the carrier is carried into the body is held against the body.

2. Method as claimed in claim 1, characterized in that the carrier is carried into the body by means of compressed air.

3. Method as claimed in claim 1, characterized in that in one operation with the injecting the area of the skin where the injection takes place is disinfected.

4. Method as claimed in claim 1, characterized in that in one operation with the injecting the animal for injecting is marked.

5. Device for injecting animals or humans with a pharmaceutical preparation, comprising a chamber into which a carrier containing the pharmaceutical preparation can be introduced, a barrel connecting onto this chamber, means for carrying the carrier by means of gas pressure through the barrel into the body for injecting, and means for initiating release of the gas pressure into the barrel, characterized by means for blocking the use of the device when it is not pressed against a body.

6. Device as claimed in claim 5, characterized in that the means of generating the gas pressure are formed by a vessel for filling with compressed gas which is connected to the chamber by means of a closing valve.

7. Device as claimed in claim 5, characterized in that on one of its sides the device contains a handle-grip, and on its other side it containes the aperture from which the carrier emerges.

8. Device as claimed in claim 5, characterized in that at the end of the barrel a member is arranged, which when the end of the barrel is pressed onto the skin, atomizes a liquid, for instance a disinfecting liquid or a highly coloured liquid onto the skin.

9. Device as claimed in claim 5, characterized by a magazine for the carrier, wherein means are arranged in the magazine for urging the carriers into the chamber.

10. Carrier fit for injection by an apparatus according to one of claims 5-9, characterized in that said carrier comprises a bio-degradable substance and a pharmaceutically active substance.

11. Carrier as claimed in claim 10, characterized in that the carrier comprises a pharmaceutically active substance an a bio-degradable substance.

12. Carrier as claimed in claim 10, characterized in that the carrier is formed such that the pharmaceutically active substance is released slowly from the carrier.

13. Carrier as claimed in claim 10, characterized in that the carrier is formed by a rigid hollow shell and that in the shell there is a space for arranging the pharmaceutically active substance.

14. Carrier as claimed in claim 10, characterized in that the rigid carrier contains mainly starch.

15. Carrier as claimed in claim 14, characterized in that the carrier is manufactured by injection moulding.

16. Carrier suitable for injection by an apparatus according to one of claims 5-9, characterized in that the carrier contains an identifiable element, for instance a chip.