Medical syringe injector pen
First Claim
1. An apparatus for holding a syringe and injecting fluid from the syringe, said apparatus comprising:
- a barrel having a bore extending therethrough for receiving a body portion of the syringe;
a drive spring; and
a telescoping piston movable under the influence of said drive spring to advance the syringe from a retracted position within the barrel to an advanced position wherein a needle portion of the syringe extends outwardly of the barrel, and to compress a plunger portion of the syringe relative to the body portion of the syringe to inject the fluid through the needle portion.
4 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for holding a syringe and injecting fluid from the syringe. The apparatus includes a barrel having a bore extending therethrough for receiving a body portion of the syringe, a drive spring, and a telescoping piston movable under the influence of the drive spring to advance the syringe from a retracted position within the barrel to an advanced position wherein a needle portion of the syringe extends outwardly of the barrel, and to compress a plunger portion of the syringe relative to the body portion of the syringe to inject the fluid through the needle portion. After the fluid is injected, the needle is retracted back into a shielded position out of view from the user.
-
Citations
21 Claims
-
1. An apparatus for holding a syringe and injecting fluid from the syringe, said apparatus comprising:
-
a barrel having a bore extending therethrough for receiving a body portion of the syringe;
a drive spring; and
a telescoping piston movable under the influence of said drive spring to advance the syringe from a retracted position within the barrel to an advanced position wherein a needle portion of the syringe extends outwardly of the barrel, and to compress a plunger portion of the syringe relative to the body portion of the syringe to inject the fluid through the needle portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An apparatus for injecting a pharmaceutical fluid, said apparatus comprising:
-
a housing for receiving a syringe;
a locking mechanism for retaining the syringe in the housing;
a drive piston for injecting a pharmaceutical fluid out of the syringe; and
an actuator for selectively actuating the drive piston. - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. An apparatus for injecting a fluid from a syringe, said apparatus comprising:
-
a drive spring-releasably coupled to a piston for engagement with the syringe to inject the fluid; and
a return spring for retracting the piston from engagement with the syringe upon release of the piston from the drive spring. - View Dependent Claims (20)
-
-
21. An apparatus for injecting a fluid from a syringe, said apparatus comprising a housing having first and second portions detachably coupled to one another, the second portion of the housing comprising a syringe receiver having a rotating collar movable between a first position for engaging the syringe and a second position for releasing the syringe, and the first portion of the housing comprising a drive mechanism for actuation of the syringe to inject the fluid.
Specification