SYRINGE LOADING GUIDE

• US 3,844,318 A
• Filed: 04/18/1973
• Issued: 10/29/1974
• Est. Priority Date: 04/18/1973
• Status: Expired due to Term

• Current Assignee: Brewster H. Staples, David C. Raia
• Original Assignee: Brewster H. Staples, David C. Raia
• Inventors: Raia, David C., Staples, Brewster H.
• Primary Examiner(s): Bell, Jr., Houston S.
• Application Number:
  US05/352,107
• Time in Patent Office: 559 Days
• Field of Search: 128/218C 141/1,2,18,27,369-373,375-378,94,95,19,329,330 222/43,23-26,29,46,47,309 33/168R,194
• US Class Current: 141/27
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: A61M 2005/3131 specially adapted for improving sealing or sliding
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 5/1782 Devices aiding filling of syringes in situ combination of a vial and a syringe for transferring or mixing their contents A61J1/2096, filling of medical containers in general B65B3/003

Abstract

A syringe loading guide to permit accurate placement of a syringe needle into a medication bottle and to permit accurate incremental loading of the syringe; in which a template-like body receives the medication bottle and the syringe, locating them for the correct depth of the needle in the bottle; and having ribs calibrated to dosage increments for passage thereover by the plunger knob of the syringe as it is withdrawn.

Claims

1. A guide for use with a hypodermic syringe of the type having a barrel;

a needle extending from a forward end of the barrel; and

a plunger terminating in a knob extending out of the rearward end of the barrel;

said guide comprising;

a relatively rigid body structure having three parts;

a middle part having an opening therein for receiving a syringe;

a forward part having an opening therein communicating with the syringe receiving opening for receiving a medication bottle;

means for fixing a predetermined distance between a medication bottle and a syringe when they are received in their respective openings;

a loading control part located rearward of said syringe receiving opening having at least one ribbed member extending rearwardly of said syringe receiving opending and in partial interference with the path of withdrawl movement of the plunger knob of a syringe emplaced in the guide for sequential contact by the plunger knob with the ribs as it is withdrawn; and

means for biasing such a knob against the ribbed member;

whereby a dosage bottle may be emplaced and a syringe inserted into the opening and the needle, be reason of the predetermined distance, inserted the correct distance into the bottle;

whereupon the plunger may be withdrawn across a predetermined number of ribs of the ribbed member until a desired amount of fluid is drawn into the syringe;

thus permitting a correct dosage to be drawn into the syringe by sensing the passage of the knob across the correct number of ribs.

2. The guide of claim 1 in which the means for fixing a predetermined distance comprises a forwardly located registration shoulder shoulder in the syringe receiving Opening and a bottle registration shoulder in the bottle receiving opening.

3. The guide of claim 1 in which the biasing means comprises a second ribbed member, in opposed relationship to the ribbed member and each having opposed ribs.

4. The guide of claim 1 in which the biasing means comprises an arm cantilevered from the body structure and extending generally parallel in opposed relationship to the ribbed member.

5. The guide of claim 1 wherein the loading control part comprises means for detachably receiving the ribbed member.

6. The guide of claim 1 wherein the ribbed member and the biasing means comprise arms cantilevered from the body structure and extending generally parallel to each other in opposed relationship.

7. The guide of claim 5 wherein the loading control part comprises an elongated loop extending rearwardly from the middle part, said loop having an elongated seat therein for receiving a ribbed interchangeable plug.

8. The guide of claim 1 wherein the ribs of the ribbed member have their forward edges relatively rounded and their rearward edges relatively sharp.

9. The guide of claim 1 wherein the guide body structure comprises a template having a thichness, at least in its loading control part, less than the diameter of the knob of the hypodermic syringe.

10. The guide of claim 8 wherin the ribs of the ribbed member are pitched rearward.

11. The guide of claim 1 wherein the ribs are in the shape of a right triangle with the hypotenuse facing forward.