Device for injection syringe
First Claim
1. Device for injection syringes having a hollow cylindrical body and an exposed injection needle extending below the cylindrical body and connected for flow of liquid from the body through the needle for intramuscular and subcutaneous injections in human or veterinary medicine, which comprises an essentially tubular sleeve of substantially uniform inner diameter, whose inner diameter is slightly larger than the outer diameter of the hollow cylindrical body of an associated injection syringe to permit sliding the sleeve onto the cylindrical body, and which is provided in the interior with at least one clamping- or holding element disposed at an intermediate point to provide an upper portion of the sleeve encircling the cylindrical body and which holding element releases, when a certain pressure is reached, the forward motion of the syringe body with the needle which is disposed in the sleeve, whereby the length of the sleeve and the position of the clamping element in it are so dimensioned that the needle remains completely in the sleeve before the pressure is applied, and that, after the application of the pressure, the desired depth of injection can be reached outside of the sleeve by a stop element in the sleeve which stops the syringe body which moves toward the end of said sleeve when the desired pressure is reached.
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Accused Products
Abstract
Device for injection syringes for intramuscular and subcutaneous injections in human or veterinary medicine, characterized by an essentially tubular sleeve, whose inner diameter is slightly larger than the outer diameter of an associated injection syringe, and which is provided in the interior with at least one clamping-or holding element which releases, when a certain pressure is reached, the forward motion of the syringe body with the needle which is disposed in the sleeve. The length of the sleeve and the position of the clamping element in it are so dimensioned that the needle remains completely in the sleeve before the pressure is applied. After the application of the pressure, the desired depth of injection can be reached outside of the sleeve.
232 Citations
14 Claims
- 1. Device for injection syringes having a hollow cylindrical body and an exposed injection needle extending below the cylindrical body and connected for flow of liquid from the body through the needle for intramuscular and subcutaneous injections in human or veterinary medicine, which comprises an essentially tubular sleeve of substantially uniform inner diameter, whose inner diameter is slightly larger than the outer diameter of the hollow cylindrical body of an associated injection syringe to permit sliding the sleeve onto the cylindrical body, and which is provided in the interior with at least one clamping- or holding element disposed at an intermediate point to provide an upper portion of the sleeve encircling the cylindrical body and which holding element releases, when a certain pressure is reached, the forward motion of the syringe body with the needle which is disposed in the sleeve, whereby the length of the sleeve and the position of the clamping element in it are so dimensioned that the needle remains completely in the sleeve before the pressure is applied, and that, after the application of the pressure, the desired depth of injection can be reached outside of the sleeve by a stop element in the sleeve which stops the syringe body which moves toward the end of said sleeve when the desired pressure is reached.
- 9. Device for injection syringes for intramuscular and subcutaneous injections in human or veterinary medicine, comprising an essentially tubular sleeve, whose inner diameter is slightly larger than the outer diameter of an associated injection syringe, and which is provided in the interior with at least one clamping- or holding element which releases when a certain pressure is reached, the forward motion of the syringe body with the needle which is disposed in the sleeve, whereby the length of the sleeve and the position of the clamping element in it are so dimensioned that the needle remains completely in the sleeve before the pressure is applied, and that, after the application of the pressure, the desired depth of injection can be reached outside of the sleeve and wherein the sleeve is made of synthetic material, and that the clamping element is provided with at least one tongue which is slitted in the in the longitudinal direction and provided with a catch which points inward.
Specification