Mixing and delivery syringe assembly

• US 6,027,472 A
• Filed: 09/08/1998
• Issued: 02/22/2000
• Est. Priority Date: 08/13/1992
• Status: Expired due to Fees

• Current Assignee: Pescadero Beach Holdings Corporation
• Original Assignee: Science Incorporated
• Inventors: Thompson, Thomas N., Kriesel, Marshall S.
• Primary Examiner(s): Coggins, Wynn Wood
• Assistant Examiner(s): NGUYEN, ANH TUAN TUONG
• Application Number:
  US09/149,386
• Time in Patent Office: 532 Days
• Field of Search: 604/82-93, 604/139, 604/146, 604/151, 604/181, 604/183, 604/191, 604/221, 604/200, 604/232, 604/235
• US Class Current: 604/89
• CPC Class Codes: A61M 2005/2407 from the rear
• CPC Class Codes: A61M 2005/247 with fixed or steady piercing means, e.g. piercing under movement of ampoule
• CPC Class Codes: A61M 2005/3104 Caps for syringes without needle
• CPC Class Codes: A61M 2205/273 preventing reuse, e.g. of disposables
• CPC Class Codes: A61M 2205/276 preventing unwanted use
• CPC Class Codes: A61M 2209/045 for filling, e.g. for filling reservoirs
• CPC Class Codes: A61M 5/14526 the piston being actuated by fluid pressure
• CPC Class Codes: A61M 5/20 Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically A61M5/142 , A61M5/46 take precedence; hypodermic projectiles F42B12/54
• CPC Class Codes: A61M 5/24 Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic ampoules or carpules A61J1/06
• CPC Class Codes: A61M 5/2429 by telescoping of ampoules or carpules with the syringe body
• CPC Class Codes: A61M 5/2448 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: A61M 5/2466 by piercing without internal pressure increase A61M5/2429 takes precedence
• CPC Class Codes: A61M 5/3145 Filters incorporated in syringes
• CPC Class Codes: A61M 5/348 snap lock, i.e. upon axial displacement of needle assembly A61M5/344 takes precedence
• CPC Class Codes: A61M 5/5013 Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
• CPC Class Codes: A61M 5/502 for blocking the piston

Abstract

A syringe type apparatus which includes a unique fill assembly for use in controllably injecting medicinal fluids into a patient. The filling assembly includes a prefilled vial which is partially received within a novel adapter assembly that functions to operably couple the prefilled vial with the syringe assembly of the apparatus. The body of the prefilled vial is surrounded by a protective covering until immediately prior to mating the assembly with the syringe assembly.

Claims

1. A syringe apparatus comprising:

(a) a syringe assembly including;

(i) an elongated housing defining an internal chamber; and

(ii) a cannula means operably associated with said elongated housing for providing a fluid flow path, said cannula means including a hollow cannula having first and second end portions; and

(b) a fluid containing assembly interconnected with said syringe assembly comprising;

(i) a container assembly including;

a. a container having a body portion, a fluid chamber, and first and second ends; and

b. means associated with said container for causing fluid flow from said fluid chamber toward said cannula means; and

(ii) an adapter assembly telescopically movable within said internal chamber of said housing of said syringe assembly from a first extended position to a second advanced position, said adapter assembly comprising a hollow housing having an internal chamber for telescopically receiving said container, said hollow housing including means associated with said means for causing fluid flow from said chamber for acting thereon as said hollow housing of said adapter assembly moves within said syringe assembly from said first extended position to said second advanced position wherein said container is substantially encapsulated with said hollow housing, whereby fluid will flow from said fluid chamber of said container through said fluid flow path.

2. An apparatus as defined in claim 1 in which said means for causing fluid flow from said chamber comprises a plunger movable within said chamber.

3. An apparatus as defined in claim 2 in which said hollow housing of said adapter assembly includes a closed end and a pusher rod connected to said closed end, said pusher rod being engagable with said plunger as said hollow housing of said adapter assembly moves between said first extended position and said second position.

4. An apparatus as defined in claim 3 further including a cover assembly connected to said fluid containing assembly comprising a cover having a first open end for telescopically receiving a part of said body portion of said container of said container assembly and a second end, said cover being removable from said container.

5. An apparatus as defined in claim 1 further including adding means disposed within said body portion of said container for adding an additive to the fluid contained within said fluid chamber.

6. A syringe apparatus comprising:

(a) a syringe assembly including;

(i) an elongated housing having side and end walls defining an internal chamber, said end wall having an opening; and

(ii) a hollow cannula disposed within said opening in said elongated housing and extending into said internal chamber thereof, said hollow cannula defining a fluid outlet passageway; and

(b) a fluid containing assembly operably interconnectable with said syringe assembly comprising;

(i) a container assembly including;

a. a container having a body portion, a fluid chamber, and first and second ends;

b. a scaffold disposed within said body portion;

c. a beneficial agent removably connected to said scaffold;

d. closure means for sealably closing one end of said container;

e. means associated with said container for causing fluid to flow from said container into said hollow cannula; and

(ii) an adapter assembly telescopically movable within said internal chamber of said housing of said syringe assembly from a first extended position to a second container assembly encapsulation position, said adapter assembly comprising a hollow housing having a first open end for telescopically receiving a part of said body portion of said container of said container assembly.

7. An apparatus as defined in claim 6 in which said closure means comprises a pierceable septum.

8. An apparatus as defined in claim 7 in which said hollow cannula of said syringe assembly comprises a hollow needle having a pierceable extremity for piercing said pierceable septum.

9. An apparatus as defined in claim 7 in which said hollow cannula of said syringe assembly comprises a hollow, blunt end cannula.

10. A syringe apparatus comprising:

(a) a syringe assembly including;

(i) an elongated housing having side and end walls defining an internal chamber, said end wall having an opening therethrough; and

(ii) cannula means including a hollow cannula disposed within said opening in said end wall for providing a fluid flow path to the exterior of the apparatus; and

(b) a fluid containing assembly interconnected with said syringe assembly comprising;

(i) a container assembly including;

a. a container having a body portion, a fluid chamber, and first and second open ends;

b. fluid flow control means disposed within said body portion of said container for controlling fluid flow from said fluid chamber toward said cannula means;

c. closure means for sealably closing said first end of said container, said closure means being pierceable by said hollow cannula;

d. means associated with said container to cause fluid to flow from said fluid chamber into said hollow cannula; and

(ii) an adapter assembly telescopically movable within said internal chamber of said housing of said syringe assembly from a first extended position to a second container assembly encapsulation position, said adapter assembly comprising a hollow housing having wall defining an internal chamber having a first open end for telescopically receiving said container of said container assembly.