Bone-regeneration material
View Patent ↗The invention relates to a process for producing a bone-regeneration material. According to the method, a bio-compatible, open-pored body is exposed to a vacuum and osteoinductive and/or osteogenic substances are absorbed into the pores of the body, for example by means of a vacuum generated therein. It is thus possible to produce a bone-regeneration material, which contains osteoinductive and/or osteogenic substances in the pores of the bio-compatible body, said substances acting as a network structure for new somatic cells that are to grow into the porous body.
1. A device for the production of bone regeneration material comprising:
a tubular body having a substantially uniform diameter along the entire length of the tubular body, the tubular body capable of receiving through a distal end of the tubular body a biocompatible resorbable open-pore body with a diameter that closely approximates the substantially uniform diameter of the tubular body;
a plunger assembly movably disposed within the tubular body, the plunger assembly including a piston engageable with and shaped to slideably extend along an entire length of the tubular body;
a head component configured to be removable and engageable with the distal end of the tubular body, the head component having a pierceable and resealable membrane sealed thereon; and
a cannula adapter configured to be removable and engageable with the head component and having a cannula disposed thereon in a configuration to cause the cannula to pierce the membrane when the cannula adapter is engaged with the head component and to withdraw from membrane when the cannula adapter is removed from the head component;
wherein the cannula and membrane are matched such that upon removal of the cannula adapter from the head component the membrane reseals to foam a substantially airtight chamber defined by the membrane, the tubular body and the plunger.
2. The device of claim 1 , wherein a first portion of the head component has a diameter larger than a diameter of a second portion of the cannula adapter.
3. The device of claim 1 , wherein a first portion of the cannula adapter has a diameter larger than a diameter of a second portion of the cannula adapter.
4. The device of claim 1 , wherein the head component has a first portion with a diameter larger than a diameter of a second portion of the head component, a diameter of the first portion of the cannula adapter having a larger diameter than a second portion of the head component, and a diameter of a second portion of the cannula adapter having a smaller diameter than the first portion of the adapter and the diameter of the second portion of the head component.
5. The device of claim 1 , wherein the membrane is configured to seal around a proximal portion of the cannula when the cannula adapter is engaged with the head component such that movement of the plunger assembly within the tubular body facilitates fluid entry into the tubular body when a distal portion of the cannula is immersed in the fluid.
6. The device of claim 5 , wherein the cannula adapter includes a Luer system.
7. The device of claim 6 , wherein the Luer system includes one or more of an injection needle, a catheter and a butterfly needle.
8. The device of claim 1 , further comprising the biocompatible resorbable open-pore body disposed within the tubular body.
9. The device of claim 8 , wherein a porosity of the biocompatible resorbable open-pore body is at least 25%.
10. The device of claim 9 , wherein the porosity of the biocompatible resorbable open-pore body is at least 35%.
11. The device of claim 1 , wherein the head component tapers from a first portion to a second portion.
12. The device of claim 1 , wherein the cannula adapter tapers from a first portion to a second portion.
13. The device of claim 1 , wherein a diameter of a first portion of the head component is larger than a diameter of the tubular body.