Bone cement mixing and delivery system with reduced fume exposure

Patent metadata

Field	Value
Publication number	US-10646841-B2
Application number	US-201615218885-A
Country	US
Kind code	B2
Filing date	Jul 25, 2016
Priority date	Jan 7, 2013
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

A system for bone cement includes a vial holder configured for receiving a vial and including a holding structure for maintaining the vial in the vial holder. The vial includes a monomer component for bone cement. A holder chamber is configured to receive and secure the vial holder. The vial holder is advanced toward a vial-breaking device for breaking the vial and releasing its contents into the holder chamber past the elastomeric seal. Once the vial holder is advanced further the elastomeric seal is deformed to form a seal and prevent fumes produced from escaping from the device.

First claim

What is claimed is:

1. A mixing device comprising:
a vial holder;
a container configured to receive and secure the vial holder therein when engaged with the vial holder, the vial holder and the container forming an enclosure for containing a vial, the container comprising a ledge and a vial-breaking device; and
a mixing vessel comprising a mixing chamber, the vial holder being configured to be advanced toward the vial-breaking device to break the vial and for releasing contents of the vial such that the contents move into the mixing vessel,
the mixing vessel comprising a port and a syringe that is in communication with the port, the syringe comprising a plunger that is movable within the syringe to draw the contents into the syringe, the mixing vessel being movable relative to the container between a first orientation in which the ledge is spaced apart from the plunger and a second orientation in which the ledge engages the plunger to move the plunger relative to the syringe and drive the contents out of the syringe and the port,
wherein the vial holder comprises a threaded outer surface and the container comprises a threaded inner surface configured to engage the threaded outer surface to move the vial holder axially relative to the container, and
wherein the mixing vessel comprises a threaded inner surface that engages a threaded outer surface of the container to move the container axially relative to the mixing vessel.

2. The mixing device recited in claim 1 , wherein the container comprises an elastomeric seal having a first surface and an opposite second surface, the seal being positioned such that the vial-breaking device extends through the first and second surfaces.

3. The mixing device recited in claim 2 , wherein the seal is configured to form a seal against an inner surface of the container so as to prevent fumes from escaping from the container.

4. The mixing device recited in claim 3 , wherein the seal forms a seal against an unthreaded inner surface when the container is in the second orientation so as to prevent fumes from escaping from the container.

5. The mixing device recited in claim 1 , further comprising the vial.

6. The mixing device recited in claim 5 , wherein the vial-breaking device is a spike that extends into the vial when the container is in the second orientation.

7. The mixing device recited in claim 5 , wherein the vial-breaking device comprises a passageway that extends through the vial-breaking device to allow contents of the vial to pass through the container and into the mixing vessel.

8. A mixing device comprising:
a vial holder;
a vial coupled to the vial holder;
a container configured to receive and secure the vial holder therein when engaged with the vial holder, the vial holder and the container forming an enclosure for containing the vial, the container comprising a ledge and a vial-breaking device, the container comprising an elastomeric seal positioned such that the vial-breaking device extends through the seal;
a mixing vessel comprising a mixing chamber, the vial holder being configured to be advanced toward the vial-breaking device to break the vial and for releasing contents of the vial such that the contents move into the mixing vessel,
the mixing vessel comprising a port and a syringe that is in communication with the port, the syringe comprising a plunger that is movable within the syringe to draw the contents into the syringe, the mixing vessel being movable relative to the container between a first orientation in which the ledge is spaced apart from the plunger and a second orientation in which the ledge engages the plunger to move the plunger relative to the syringe and drive the contents out of the syringe and the port; and
a one-way valve disposed between the enclosure and the mixing chamber to prevent back flow into the enclosure,
wherein the vial holder comprises a threaded outer surface and the container comprises a threaded inner surface configured to engage the threaded outer surface to move the vial holder axially relative to the container, and
wherein the mixing vessel comprises a threaded inner surface that engages a threaded outer surface of the container to move the container axially relative to the mixing vessel.

9. A mixing device comprising:
a vial holder;
a container, the vial holder and the container forming an enclosure, the container comprising a vial-breaking device; and
a mixing vessel comprising a mixing chamber, a port, a syringe that is in communication with the port and a plunger that is movable within the syringe,
wherein the vial holder comprises a threaded outer surface and the container comprises a threaded inner surface configured to engage the threaded outer surface to move the vial holder axially relative to the container, and
wherein the mixing vessel comprises a threaded inner surface that engages a threaded outer surface of the container to move the container axially relative to the mixing vessel, and
wherein the enclosure is configured for disposal of a vial, the vial-breaking device being configured to break the vial to release contents of the vial into the mixing vessel when the vial holder is advanced toward the vial-breaking device, the plunger being movable to draw the contents into the syringe, the contents being driven out of the syringe and the port when the mixing vessel is in the second orientation.

10. The mixing device recited in claim 9 , wherein the container includes a ledge, the mixing vessel being movable relative to the container between a first orientation in which the ledge is spaced apart from the plunger and a second orientation in which the ledge engages the plunger to move the plunger relative to the syringe.

11. The mixing device recited in claim 9 , wherein the container comprises an elastomeric seal having a first surface and an opposite second surface, the seal being positioned such that the vial-breaking device extends through the first and second surfaces.

12. The mixing device recited in claim 11 , wherein the seal is configured to form a seal against the container so as to prevent fumes from escaping from the container.

13. The mixing device recited in claim 11 , wherein the seal forms a seal against an unthreaded inner surface of the container so as to prevent fumes from escaping from the container.

14. The mixing device recited in claim 9 , wherein the vial-breaking device is a spike.

15. The mixing device recited in claim 9 , wherein the vial-breaking device comprises a passageway that extends through the vial-breaking device to allow a liquid to pass through the container and into the mixing vessel.

16. The mixing device recited in claim 9 , further comprising the vial.

17. The mixing device recited in claim 16 , wherein the vial-breaking device is a spike that extends into the vial when the container is in the second orientation.

18. The mixing device recited in claim 16 , wherein the vial-breaking device comprises a passageway that extends through the vial-breaking device to allow contents of the vial to pass through the container and into the mixing vessel.

19. The mixing device recited in claim 9 , further comprising a one-way valve disposed between the enclosure and the mixing chamber to prevent back flow into the enclosure.

Assignees

• Medtronic Holding Co Sarl

Inventors

• Sasaki Neil S
• Click Bryan A

Classifications

• A61B17/8833

  Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means · CPC title

• A61B2017/8838

  for mixing bone cement or fluid fillers · CPC title

• B01F15/00993

  Operations & Transport · mapped topic

• B01F15/0237

  Operations & Transport · mapped topic

• B01F15/0206

  Operations & Transport · mapped topic