Compressible syringe

• US 4,411,656 A
• Filed: 01/29/1982
• Issued: 10/25/1983
• Est. Priority Date: 01/29/1982
• Status: Expired due to Fees

• Current Assignee: CORPAK MedSystems, Inc. (Avanos Medical, Inc.)
• Original Assignee: Urologic & Enteric Research Associates
• Inventors: Cornett, Walter G. III
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US06/343,886
• Time in Patent Office: 634 Days
• Field of Search: 128/216, 128/215, 128/218 P, 128/218 PA, 128/218 N, 128/232, 604/212, 604/187, 604/263
• US Class Current: 604/212
• CPC Class Codes: A61M 2005/3104 Caps for syringes without needle
• CPC Class Codes: A61M 2005/3118 via the distal end of a syringe, i.e. syringe end for mounting a needle cannula
• CPC Class Codes: A61M 3/00 Medical syringes, e.g. enemata; Irrigators A61M5/00 takes precedence; pistons A61M5/315
• CPC Class Codes: A61M 3/0262 manually, e.g. by squeezing a bulb
• CPC Class Codes: A61M 5/282 by compression of deformable ampoule or carpule wall
• CPC Class Codes: B65D 1/32 Containers adapted to be temporarily deformed by external pressure to expel contents B65D47/2018, B65D83/0055 take precedence ; containers for pharmaceutical purposes A61J1/20, A61M5/19; containers with disinfecting linings A61L2/00; liquid sprayers B05B; oil cans F16N3/00

Abstract

An improved one-piece disposable fluid-filled compressible syringe comprised of a shielding disc molded into a substantially intermediate portion of the syringe neck and lying perpendicular to the longitudinal axis of the syringe to promote aseptic technique in manipulating the syringe during use. The syringe also includes an improved syringe cap comprised of a disc, perpendicularly oriented to the longitudinal axis of the syringe, a semi-circular gripping piece perpendicularly mounted to one surface of the disc and a sleeve to receive the syringe tip mounted to the disc surface opposite to the surface to which the gripping piece is attached. The disc included in the syringe cap prevents a user'"'"'s fingers from contacting the syringe tip during removal or replacement of the cap.

Claims

1. In a syringe of the type having a hollow body made compressible by bellow structures and a tubular neck wherein one end of the neck is axially mounted to a terminal portion of the body and the other end of the neck tapers inward to form a tip having an opening through which fluid may pass upon compression of the body, the improvement comprising:

a first hollow platform molded into said terminal portion and perpendicular to the longitudinal axis of the syringe so that said neck protrudes from the center of one side of said first platform while the other side of said platform is contiguous with said body, such that the interiors of said body and said first platform are in communication with each other; and

a second hollow platform molded into an intermediate portion of said neck and perpendicular to the longitudinal axis of the syringe and parallel to said first platform so that said neck centrally enters one surface of said second platform and centrally exits from the opposing surface of said second platform so that the interiors of said neck and said second platform are in direct communication with each other and a space is formed between said first and second platforms to provide a gripping region for a user'"'"'s fingers during operation of the syringe.

2. The syringe described in claim 1 further including means for covering the tip comprising:

a platform perpendicular to the longitudinal axis of the syringe;

a gripping member which is perpendicularly mounted to said third platform and

a sleeve molded to the tip and mounted on the opposite surface of said platform such that when a user grasps said gripping means to remove said covering means, said platform prevents the user'"'"'s fingers from contacting the tip.

3. The syringe described in claim 2, wherein said platform is circular and said gripping member is semi-circular such that the linear peripheral edge of said semi-circular member is mounted to the surface of said circular platform.

4. The syringe described in claim 1 further comprising:

a pressure application means attached to a terminal portion of said body opposite from said terminal portion to which said neck is attached to receive a user'"'"'s thumb in compressing said body.

5. The syringe described in claim 4, wherein said pressure application means includes a ring.

7. The syringe described in claim 2 wherein said cap may be removed by snapping said sleeve off the tip of the syringe along a circumferential notch scored into the neck and about the circumference of the neck.

6. A cap for covering the tip of a syringe having a compressible body comprising:

a shielding platform perpendicularly oriented to the longitudinal axis of the syringe body, said platform having surface area dimensions substantially equivalent to the cross-sectional dimensions of the syringe body;

a semi-circular gripping tab perpendicularly mounted to one surface of said platform; and

a tapered sleeve to receive the syringe tip, said sleeve mounted to the surface of said platform opposite from the surface to which said tab is mounted, so that when a user grasps said tab to remove or replace said cap the surface area dimensions of said platform shields a user'"'"'s fingers from contacting any portion of the syringe tip.

8. In a syringe of the type having a hollow body made compressible by bellow structures and a tubular neck wherein one end of the neck is axially mounted to a terminal portion of the body and the other end of the neck tapers inward to form a tip having an opening through which fluid may pass upon compression of the body, the improvement comprising:

at least one shielding platform molded into said neck, said platform being perpendicular to the longitudinal axis of the syringe so that said neck protrudes through said platform, such that said platform acts as an aseptic barrier to prevent a user'"'"'s fingers from contacting said tip.