Insert for the infusion of drugs

Patent metadata

Field	Value
Publication number	US-9498615-B2
Application number	US-201113519711-A
Country	US
Kind code	B2
Filing date	Jan 17, 2011
Priority date	Jan 29, 2010
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

An insert for an infusion of drugs is configured for connection to a vial and preferably to a circuit or an infusion line. The insert includes a main body, a resilient element, and a piercing spike. The piercing spike has an axis X and defines a first channel and a second channel, and is movable relative to the main body along the axis X between a first closed position A and a second open position B. The resilient element presses against the piercing spike so as to keep the piercing spike in the first closed position A when no external forces are applied.

First claim

What is claimed is:

1. An insert for an infusion of drugs, said insert comprising
a main body, a resilient element, and a piercing spike, with said insert being configured for connection to a vial,
the piercing spike having an axis X and defining a first piercing spike channel and a second piercing spike channel and being movable relative to the main body along the axis X between: a closed position (A) and an open position (B), and
the resilient element
(i) pressing against the piercing spike so as to keep the piercing spike in the closed position (A) when no external forces are applied, and
(ii) defining a seat inside which the spike is seated with a slight interference and inside which the spike is slideable, passing from at least one of the closed position (A) into the open position (B), and from the open position (B) into the closed position (A).

2. The insert according to claim 1 , wherein the insert is configured for connection to an extracorporeal circuit or to an infusion line.

3. The insert according to claim 1 , wherein the piercing spike extends mainly along the axis X and includes a flange which extends in a plane perpendicular to the axis X.

4. The insert according to claim 3 , wherein the flange is configured to contact a stopper when the stopper has been pierced by the spike and is further pressed against the spike, such that a further pressure exerted on the vial along a direction of the axis X produces an integral displacement of the vial and of the spike towards the open position (B).

5. The insert according to claim 1 , wherein the resilient element defines a resilient thrusting surface able to push the spike in an axial direction, towards the closed position (A).

6. The insert according to claim 1 , wherein the resilient element defines internally a first resilient element channel and a second resilient element channel, the first resilient element channel and the second resilient element channel connecting the seat to an outside of the insert.

7. The insert according to claim 6 , wherein the first resilient element channel and the second resilient element channel, defined by the resilient element are suitable to define respective extensions of the first piercing spike channel and the second piercing spike channel defined by the spike.

8. The insert according to claim 6 , wherein, when the spike is in the closed position (A), the first piercing spike channel and the second piercing spike channel are closed off by walls of the seat inside which the spike slides, and the first resilient element channel and the second resilient element channel are closed off by a body of the spike.

9. The insert according to claim 6 , wherein, when the spike is in the open position (B), the first piercing spike channel and the second piercing spike channel are in communication with the first resilient element channel and the second resilient element channel.

10. The insert according to claim 1 , wherein the main body defines a seat for the resilient element, a seat for the spike, and a seat for a head of the vial.

11. The insert according to claim 10 , wherein the seat for the head of the vial includes teeth for providing a snap-engaging connection between the main body of the insert and the head of the vial.

12. A vial comprising a head, wherein said head is configured, with respect to a size and a shape thereof, for matching the seat for the head of the vial defined by the insert according to claim 10 .

13. The insert according to claim 1 , wherein a force exerted on the spike by a resilient thrusting surface and friction between the seat of the resilient element and a body of the spike provide that, when a stopper of the vial is pressed against the spike, the stopper is perforated and the spike does not travel along the axis X, remaining in the closed position (A).

14. The insert according to claim wherein the main body and the resilient element have a two component injection moulding construction.

15. The insert according to claim combination with the vial, wherein teeth snap-engage a head of the vial so as to keep the head of the vial in position, and produce a reaction against a force exerted by a resilient surface on the spike.

16. The insert according to claim 15 in combination with the vial, wherein an inside of the vial is connected to an exterior of the vial via two separate ducts such that a liquid is able to flow from the inside of the vial towards the exterior of the vial, and at a same time, air is able to flow from the exterior of the vial towards the inside of the vial.

17. An extra-corporeal circuit comprising a drip chamber, wherein the insert according to claim 1 is connected to the drip chamber.

18. The extra-corporeal circuit according to claim 17 , wherein the vial is connected to the insert, such that inside the first piercing spike channel a liquid flows from the to the drip chamber, while inside the second piercing spike channel air flows from the drip chamber to the vial.

Assignees

• Veneroni Alain
• Fini Massimo
• Fresenius Medical Care Deutschland Gmbh

Inventors

• Veneroni Alain
• Fini Massimo

Classifications

• A61M5/162

  Needle sets, i.e. connections by puncture between reservoir and tube {; Connections between reservoir and tube (in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14)} · CPC title

• A61M39/26 Primary

  Valves closing automatically on disconnecting the line and opening on reconnection thereof {(check valves A61M39/24)} · CPC title

• A61M2039/267

  having a sealing sleeve around a tubular or solid stem portion of the connector · CPC title

• A61M2039/268

  wherein the stem portion is moved for opening and closing the valve, e.g. by translation, rotation · CPC title