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Device And Method For Storing And Mixing Bone Cement

A technology of bone cement and mixing cavity, which is applied in the fields of storing initial components of bone cement, a device for mixing the initial components, and a device for mixing bone cement, which can solve the problems of sterilizing the inner cavity and not being suitable for long-term storage of monomer fluids, etc. To achieve the effect of avoiding complex transformation

Active Publication Date: 2017-04-12
HERAEUS MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is also no longer possible to sterilize the lumen shortly before using the device
This system is also not suitable for long-term storage of monomer fluids, since the rod plastic and membrane (which can be pierced and adhered to cover the rod lumen on the inwardly facing end) can preserve long-term chemically aggressive monomers which can diffuse strongly fluid

Method used

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  • Device And Method For Storing And Mixing Bone Cement
  • Device And Method For Storing And Mixing Bone Cement
  • Device And Method For Storing And Mixing Bone Cement

Examples

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Embodiment Construction

[0137] figure 1 and figure 2 In section view ( figure 1 ) and side perspective ( figure 2 ) shows a first method according to the invention for mixing bone cement and for storing initial components of the bone cement. Figure 3 to Figure 5 Schematic cutaway showing alternative devices for mixing bone cement and for storing the initial components of the bone cement, where they are associated with figure 1 and figure 2 The exemplary embodiment shown differs only in that the locking mechanism cannot be released from the outside by means of the actuating element 13 . Because the exemplary embodiments are highly similar, identical or similar parts in the figures are labeled with the same reference numerals, even though the parts may be different. see Figure 3 to Figure 5 To describe the sequence of the method of the present invention. However, this method can also be used as figure 1 or figure 2 The arrangement shown is conveniently implemented in the same manner, whe...

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Abstract

Devices mix a bone cement 55 and comprise at least one cartridge 1, wherein the cartridge comprises in its interior a cylindrical mixing chamber 2, a discharge piston 4 movable in the cylindrical mixing chamber in the longitudinal direction and sealable against the walls of the mixing chamber, a mixing device 7 for thoroughly mixing the content of the mixing chamber, which is arranged in the interior of the mixing chamber. The mixing device 7 is operable externally via a mixing rod and the mixing rod 6 is guided through a passage in the discharge piston such that it can be rotated and displaced in the longitudinal direction by the discharge piston. The cartridge 1 comprises a discharge opening opposite the discharge piston, wherein, in the mixing chamber, a first component 3 is contained between the discharge piston and the discharge opening, wherein a monomer fluid as a second component is introducable through the discharge opening into the mixing chamber. The device further comprises a locking element 9,10 with which the mixing rod 6 is affixable to the discharge piston 4 such that the discharge piston 4 is movable by means of the mixing rod in the mixing chamber in the longitudinal direction. The present invention also relates to a method for storing and mixing the bone cement by the device.

Description

technical field [0001] The present invention relates to devices for mixing bone cement. The invention also relates to methods for mixing bone cement. In addition, the invention relates to a device and a method for storing initial components of a bone cement and for mixing said initial components. [0002] The subject of the present invention is thus also a device for storing and mixing polymethylmethacrylate bone cement and a method for mixing polymethylmethacrylate bone cement. Background technique [0003] Polymethylmethacrylate bone cement (PMMA bone cement) can be traced back to the foundational work of Sir Charnley. PMMA bone cement consists of liquid monomer components and powder components. The monomer component usually contains the monomer methyl methacrylate and the catalyst (N,N-dimethyl-p-toluidine) dissolved in it. The powder component, also known as bone cement powder, contains one or more polymers, an X-ray opacifier, and an initiator, dibenzoyl peroxide. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/00B01F13/06B01F5/04B01F3/00A61B17/88B01F23/00
CPCA61B17/8802B01F23/00B01F25/00B01F25/30B01F33/70B01F2101/20A61B17/8825A61B17/8827A61B2017/8838A61B2090/037A61B17/8833B01F31/40B01F33/50112B01F35/7131B01F35/718B01F35/754251B01F23/53B01F27/806B01F35/1452B01F35/3202
Inventor 塞巴斯蒂安·福格特
Owner HERAEUS MEDICAL
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