Tensioned opening device for monomer container

Patent metadata

Field	Value
Publication number	US-10485598-B2
Application number	US-201514827544-A
Country	US
Kind code	B2
Filing date	Aug 17, 2015
Priority date	Aug 22, 2014
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

Opening device for the opening of a monomer liquid container ( 1 ) comprising a positioning aid ( 6 ) for positioning of the monomer liquid container ( 1 ), an opening facility ( 8 ) for the opening of the monomer liquid container ( 1 ), the opening facility ( 8 ) being mobile with respect to the positioning aid ( 6 ) and/or the positioning aid ( 6 ) being mobile with respect to the opening facility ( 8 ), at least one elastically deformable energy-storing element ( 9 ) for storage of elastic energy, whereby a motion of the opening facility ( 8 ) and/or a motion of the positioning aid ( 6 ) can be driven by the elastic energy of the at least one elastically deformable energy-storing element ( 9 ).

First claim

The invention claimed is:

1. Opening device for the opening and draining of a monomer liquid container ( 1 , 31 , 61 ), comprising:
a positioning aid ( 6 , 36 , 67 ) for positioning of the monomer liquid container ( 1 , 31 , 61 ) in a downwardly inverted configuration, and a receptacle for monomer liquid below the positioning aid;
an opening facility ( 8 , 38 , 68 ) for the opening of the monomer liquid container ( 1 , 31 , 61 ), whereby the opening facility ( 8 , 38 , 68 ) is supported such as to be mobile with respect to the positioning aid ( 6 , 36 , 67 ) and/or the positioning aid ( 6 , 36 , 67 ) is supported such as to be mobile with respect to the opening facility ( 8 , 38 , 68 ); and
at least one elastically deformable energy-storing element ( 9 , 39 , 69 ) for storage of elastic energy, whereby a motion of the opening facility ( 8 , 38 , 68 ) and/or a motion of the positioning aid ( 6 , 36 , 67 ) can be driven by the elastic energy of the at least one elastically deformable energy-storing element ( 9 , 39 , 69 ), and the monomer liquid container ( 1 , 31 , 61 ) can be opened by the motion of the positioning aid ( 6 , 36 , 67 ) with the monomer liquid container ( 1 , 31 , 61 ) and the opening facility ( 8 , 38 , 68 ) with respect to each other, whereby monomer liquid contained within said monomer liquid container can drain into said receptacle,

wherein the vessel ( 2 ) comprises a space ( 7 ) for accommodation of an ampoule head ( 4 , 64 ) of the ampoule ( 1 , 61 ), whereby said space ( 7 ) possesses at least one mechanically deformable wall ( 12 ) against which the ampoule head ( 4 , 64 ) rests or in close proximity to which the ampoule head is situated, whereby the opening facility ( 8 , 38 , 68 ) driven by the elastic energy deforms the mechanically deformable wall ( 12 ) appropriately such that the ampoule head ( 4 , 64 ) breaks off or breaks open, whereby at least one liquid-permeable sieve element ( 22 ) or filter element ( 22 ) is provided that is arranged in the space ( 7 ) in order to retain the ampoule head ( 4 , 64 ) and/or fragments of the ampoule ( 1 , 61 ) below the ampoule head.

2. Opening device according to claim 1 , wherein the opening device comprises a closed or closable vessel ( 2 ) for accommodation of the monomer liquid container ( 1 , 31 , 61 ), whereby the positioning aid ( 6 , 36 , 67 ) is optionally arranged on the inside of the vessel ( 2 ).

3. Opening device according to claim 2 , wherein the monomer liquid container ( 1 , 31 , 61 ) is an ampoule ( 1 , 61 ) that can be or is positioned by means of the positioning aid ( 6 , 36 , 67 ), whereby the opening facility ( 8 , 38 , 68 ) is a fracturing facility ( 8 , 68 ) that fractures or breaks open the ampoule ( 1 , 61 ).

4. Opening device according to claim 3 , wherein an ampoule holder ( 6 ) is arranged on the vessel ( 2 ) by means of which the ampoule ( 1 , 61 ) is or can be affixed.

5. Opening device according to claim 1 , wherein the opening facility ( 8 , 38 , 68 ) is a pestle ( 8 , 68 ) that is supported appropriately such that it is linearly mobile, and the linear motion of the pestle ( 8 , 68 ) can be driven by the elastic energy of the at least one elastically deformable energy-storing element ( 9 , 39 , 69 ).

6. Opening device according to claim 1 , wherein the monomer liquid container ( 1 , 31 , 61 ) is a film pouch ( 31 ) that can be or is positioned by means of the positioning aid ( 6 , 36 , 67 ), whereby the opening facility ( 8 , 38 , 68 ) optionally is a blade or a puncturing mandrel ( 38 ) that cuts open the film pouch ( 31 ) or punctures it in order to open the film pouch ( 31 ).

7. Opening device according to claim 1 , wherein the at least one elastically deformable energy-storing element ( 9 , 39 , 69 ) is at least one spring ( 9 , 31 , 69 ).

8. Opening device according to claim 7 , wherein the at least one spring ( 9 , 39 , 69 ) is guided by means of a spring guidance such that the elastic spring force of the at least one spring ( 9 , 39 , 69 ) acts in a direction that is determined by the spring guidance.

9. Opening device according to claim 1 , wherein the at least one elastically deformable energy-storing element ( 9 , 39 , 69 ) is tensioned and, in the tensioned state, is arrested by at least one detachable mechanical lock ( 16 , 46 ) such that any release of the elastic energy of the at least one energy-storing element ( 9 , 39 , 69 ) is prevented by the at least one lock ( 16 , 46 ), whereby the at least one lock ( 16 , 46 ) is provided as a safety catch and/or as a safety pin ( 16 , 46 ).

10. Opening device according to claim 1 , wherein said receptacle is a trough-shaped receptacle.

11. Vacuum mixing system for the production of a cement, comprising an opening facility according to claim 1 , a mixing cartridge containing a cement powder, a monomer liquid container ( 1 , 31 , 61 ) that is positioned by means of the positioning aid ( 6 , 36 , 67 ), and a conduit ( 20 , 50 ) connecting the mixing cartridge to an opening in the region of the monomer liquid container ( 1 , 31 , 61 ).

12. Vacuum mixing system according to claim 11 , wherein the vacuum mixing system comprises a foot part ( 24 ) that bears the mixing cartridge, the conduit ( 20 , 50 ), and the opening facility and connects them to each other, whereby the mixing cartridge is connected to the foot part ( 24 ) in detachable manner.

13. Method for opening a monomer liquid container ( 1 , 31 , 61 ) with an opening device according to claim 1 , wherein the elastic energy is taken from the at least one elastically deformed energy-storing element ( 9 , 39 , 61 ), whereby the elastic energy is used to drive the opening facility ( 8 , 38 , 68 ) and/or the positioning aid ( 6 , 36 , 67 ) such that the opening facility ( 8 , 38 , 68 ) and/or the positioning aid ( 6 , 36 , 67 ) exert a force on the monomer liquid container ( 1 , 31 , 61 ) and such that the force thus exerted opens the monomer liquid container ( 1 , 31 , 61 ).

14. Method according to claim 13 , wherein at least one locking element ( 16 , 46 ) keeps the at least one energy-storing element ( 9 , 39 , 69 ) in the elastically deformed state, whereby the at least one locking element ( 16 , 46 ) is detached in order to remove the elastic energy from the at least one energy-storing element ( 9 , 39 , 69 ).

15. Method according to claim 13 , wherein a tensioned spring ( 9 , 39 , 69 ), as energy-storing element ( 9 , 39 , 69 ), pushes on a pestle ( 8 , 68 ), as opening facility ( 8 , 38 , 68 ), and/or a tensioned spring ( 9 , 39 , 69 ), as energy-storing element ( 9 , 39 , 69 ), pushes on the positioning aid ( 6 , 36 , 67 ) or on an ampoule ( 1 , 61 ), as monomer liquid container ( 1 , 31 , 61 ), whereby the spring ( 9 , 39 , 69 ) pushes the pestle ( 8 , 68 ) against the ampoule ( 1 , 61 ) and/or the ampoule ( 1 , 61 ) against the pestle ( 8 , 68 ), whereby the force thus exerted on the ampoule ( 1 , 61 ) is used to open the ampoule ( 1 , 61 ).

16. Method according to claim 13 , wherein a tensioned spring ( 9 , 39 , 69 ), as energy-storing element ( 9 , 39 , 69 ), pushes on the opening facility ( 8 , 38 , 68 ) by means of an edge, by means of a blade or by means of a mandrel ( 38 ) as opening facility ( 8 , 38 , 68 ), and/or a tensioned spring ( 9 , 39 , 69 ), as energy-storing element ( 9 , 39 , 69 ), pushes on the positioning aid ( 6 , 36 , 67 ) or on a film pouch ( 31 ), as monomer liquid container ( 1 , 31 , 61 ), whereby the spring ( 9 , 39 ,

Assignees

• Heraeus Medical Gmbh

Inventors

• Vogt Sebastian
• Kluge Thomas

Classifications

• A61B17/8833 Primary

  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

• B67B7/92

  by breaking, e.g. for ampoules · CPC title

• B01F15/0206

  Operations & Transport · mapped topic

• B67B7/24 Primary

  Hole-piercing devices · CPC title