Syringe injecting device

• US 4,026,288 A
• Filed: 10/21/1975
• Issued: 05/31/1977
• Est. Priority Date: 10/21/1975
• Status: Expired due to Term

• Current Assignee: Roger Costa Trustee
• Original Assignee: Insulin Injector Inc.
• Inventors: Costa, Roger, French, Lawrence T. Jr.
• Primary Examiner(s): Crowder, Clifford D.
• Application Number:
  US05/624,337
• Time in Patent Office: 588 Days
• Field of Search: 128/DIG. 1, 128/DIG. 11, 128/218 F, 128/216, 128/214 F, 128/215, 128/236, 124/16, 124/37
• US Class Current: 604/157
• CPC Class Codes: A61M 5/3287 Accessories for bringing the needle into the body; Automatic needle insertion A61M5/20, A61M5/31525 take precedence

Abstract

A syringe injecting device comprising a body with a slideway therein which receives a syringe carriage biased into one position by a spring and reciprocal in said slideway. A handle extends from the body and there is a communication between the carriage for the syringe and a gear in the handle, which gear is controlled by a latch having a detent which may be released by a trigger from permitting the carriage to be impelled forward under spring action to insert the needle of the syringe into a body.

Claims

1. A syringe injecting device comprising a body provided with a slideway, a carriage slidable in said slideway, a spring for urging said carriage forwardly in said body, a handle extending from said body, said carriage having a rack extending from said slideway, means in said handle for controlling the slidable movement of said carriage under influence of said spring, said means including a fingerpiece extending from said handle, a gear rotatably mounted in said handle and engaging said rack, and latch having a positive detent engaging said gear to lock it against rotation in either direction, said fingerpiece operating said latch, said latch being urged toward said gear by a spring, said carriage having means to carry a syringe.

2. A syringe injector device comprising

a body having

spaced side walls,

spaced abutment walls spanning said side walls and a bottom wall having a slot therein extending parallel to said side walls, a handle having walls extending from said bottom wall, one on either side of said slot therein,

a carriage slidable on said bottom wall guided by said side walls and between said abutment walls and provided with a tongue extending into said slot, said tongue having teeth on its under surface,

a spring acting between said carriage and one abutment wall to urge said carriage forwardly toward the other abutment wall,

said carriage having means to carry a syringe,

a gear in said handle rotatable on a fixed pivot and engaging the teeth of said tongue,

a latch slidably mounted in said handle having a detent to engage said gear and lock it against rotation in either direction, a spring to urge said latch and detent into engagement with said gear,

said latch having a finger engaging portion extending outwardly of said handle in a position to be engaged for sliding said latch to release said detent from said wheel and permit said gear to rotate and said carriage to move forwardly under influence of said spring acting on said carriage.