Slotted syringe

• US 8,888,751 B2
• Filed: 07/29/2013
• Issued: 11/18/2014
• Est. Priority Date: 12/07/2009
• Status: Expired due to Fees

• Current Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Original Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Inventors: Mudd, Christopher S.
• Primary Examiner(s): Bosworth, Kami A
• Application Number:
  US13/953,044
• Publication Number:
  US 20130310763A1
• Time in Patent Office: 477 Days
• Field of Search: 604/110, 604/111, 604/164.05, 604/187, 604/218, 604/220, 604/227
• US Class Current: 604/218
• CPC Class Codes: A61M 2005/3139 Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
• CPC Class Codes: A61M 2005/31518 designed to reduce the overall size of an injection device, e.g. using flexible or pivotally connected chain-like rod members
• CPC Class Codes: A61M 2005/5006 Having means for destroying the syringe barrel, e.g. by cutting or piercing
• CPC Class Codes: A61M 2202/06 Solids
• CPC Class Codes: A61M 5/3129 Syringe barrels A61M5/3205 and A61M5/50 take precedence
• CPC Class Codes: A61M 5/3135 characterised by constructional features of the proximal end
• CPC Class Codes: A61M 5/3137 Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/3158 performed by axially moving actuator operated by user, e.g. an injection button

Abstract

A syringe is disclosed. The syringe may include a syringe body, a first slot formed in the syringe body, a first sleeve covering the first slot, a thumb grip including a first slot guide disposed in the first slot, the thumb grip shaped to slide from a first position near the distal end of the syringe body toward a second position near the proximal end of the syringe body, and a plunger disposed in the fluid chamber of the syringe body. The plunger is configured to move towards the proximal end of the syringe body in response to pressure applied by a user to the thumb grip and includes a first plunger slot guide.

Claims

1. A syringe, comprising:

a syringe body with a fluid chamber, the syringe body having a proximal end and a distal end, with an extrusion opening at the proximal end;

a first slot formed in the syringe body, starting near the proximal end of the syringe body and ending near the distal end of the syringe body;

a first sleeve covering the first slot;

a thumb grip, the thumb grip including a first slot guide disposed in the first slot, the thumb grip shaped to slide from a first position near the distal end of the syringe body toward a second position near the proximal end of the syringe body;

a plunger disposed in the fluid chamber of the syringe body, the plunger configured to move towards the proximal end of the syringe body in response to pressure applied by a user to the thumb grip, the plunger including a first plunger slot guide disposed in the first slot;

a finger grip disposed on the syringe body near the proximal end of the syringe body; and

an intermediate finger grip disposed on the syringe body between the thumb grip and the finger grip, the intermediate finger grip configured to move along the syringe body when pushed by the thumb grip toward the proximal end of the syringe body.

2. The syringe of claim 1, further comprising:

a second slot formed in the syringe body, beginning near the proximal end of the syringe body and ending near the distal end of the syringe body; and

a second sleeve covering the second slot;

wherein the thumb grip further includes a second slot guide disposed in the second slot.

3. The syringe of claim 2, wherein:

the first sleeve and the second sleeve are parts of a single unitary sleeve covering the syringe body.

4. The syringe of claim 1, wherein the first slot passes through the syringe body, from an outer surface forming an outer circumference of the syringe body through an inner surface forming the fluid chamber.

5. The syringe of claim 1, wherein the first sleeve is an integral part of the syringe body.

6. The syringe of claim 1, wherein the first sleeve is affixed to the syringe body.

7. The syringe of claim 1, wherein the first sleeve is attached to the syringe body by one of co-molding, overmolding, press-fitting, laminating, adhering, welding, and shrink wrapping.

8. The syringe of claim 1, wherein:

the plunger is attached to the thumb grip.

9. The syringe of claim 1, further comprising:

an end cap disposed at the distal end of the syringe body.

10. The syringe of claim 1, wherein:

the first slot extends to the distal end of the syringe body.