摘要:
A case for storing medical instruments contains a rotating bracket for holding the instruments. The bracket is connected to the tray and hinged lid of the case via a movable frame, and the bracket movement is controlled by opening and closing of the lid. When the lid is closed, the bracket points the tips of the instruments downward to minimize water collection; and when the lid is opened, the instrument holding bracket rotates so that the instruments it holds are moved to a vertical position, facilitating instrument selection.
摘要:
A tool for delivering bio-compatible solid, fluid or mixed solid and fluid substances to an operating site within a patient. The tool has a tubular body or barrel with a central longitudinal through hole and a flow control valve for selectively allowing material to flow from a holding chamber within the barrel through an extender tip to a dispensing end of the tool. A plunger having a piston at one end may be inserted through the dispensing end of the barrel and drawn distally to aspirate material into the holding chamber using a syringe attached to the proximal end of the barrel, after which the valve is closed to retain the material in the chamber. The plunger, which fits into the through hole from either end of the barrel, is then removed and re-inserted into the proximal end of the barrel, the barrel valve is opened, and the plunger is pushed to move the material in the holding chamber through the extender tip and out the distal end of the barrel. An optional rod and multi-pronged blade mixing assembly may be inserted into the proximal end of the barrel to mix stored material after it is aspirated into the holding chamber and before it is dispensed.
摘要:
The invention includes a three-dimensional printing (3DP) machine that has at least one ultraviolet (UV) light source directed at powder or slurry being processed by the 3DP machine and/or directed at any of various surfaces or machine components, in a manner suitable to kill or damage microorganisms to a desired extent. The UV light sources may be either stationary or movable, and may be either pulsed or substantially continuous, and may operate in any desired sequence and timing with respect to other operations performed by the machine. The invention may include ultraviolet illumination in such a way as to interact with powder to sterilize or disinfect powder either while the powder is stationary or, alternatively, as powder is being moved from one place to another within the 3DP machine, or both. The invention also includes methods of performing three-dimensional printing using such illumination. The invention also includes the combination of other methods of sterilization or disinfection with the use of ultraviolet light. The invention also includes the use of ultraviolet light sources for a combination of polymerization/cross-linking in addition to sterilization/disinfection.
摘要:
An engineered regenerative biostructure (erb) for implantation into a human body as a bone substitute, which includes an internal microstructure, mesostructure and/or macrostructure to provide improved bone in-growth, and methods for making the erb. Under one aspect of the invention, the biostructure has resorbable and nonresorbable regions. Under another aspect of the invention, the biostructure is constructed of hydroxyapatite, tricalcium phosphate and/or demineralized bone. Under yet another aspect of the invention, the porous biostructure is partially or fully infused with a resorbable, nonresorbable or dissolvable material.