摘要:
Injection molding units and methods of delivering a cooled molding material to portions of an injection molding unit are disclosed. An injection molding unit can comprise a barrel having a feed zone, a feeding portion configured for dispensing a molding material into the feed zone, and a cooling apparatus configured for cooling at least one of the feed zone or the feeding portion to a temperature that is selected to avoid or reduce bridging or obstruction of the molding material. The cooling apparatus can include a jacket configured to cover at least a portion of the feed zone or the feeding portion. The injection molding unit can further comprise an insulation shield. A method can comprise feeding the molding material into the feed zone and cooling the molding material prior to dispensing it into the feed zone or while it is in the feed zone.
摘要:
Methods of forming polymeric articles using plasma treated polymer resins, and orthopedic implants comprising a polymeric article wherein the polymeric article has reactive groups bonded to polymer molecules in an interior region of the polymeric article.
摘要:
Methods of forming polymeric articles using plasma treated polymer resins, and orthopedic implants comprising a polymeric article wherein the polymeric article has reactive groups bonded to polymer molecules in an interior region of the polymeric article.
摘要:
Monoblock orthopedic and/or dental implants are disclosed. The monoblock implants include a ceramic articulating surface and an osseointegrative bone-contacting surface. Methods of making such implants also disclosed.
摘要:
UHMWPE is exposed to crosslinking radiation and than heated utilizing infrared radiation. In one exemplary embodiment, the infrared radiation is provided by an infrared heater having a tungsten heating element with a quartz tube. In this embodiment, the infrared radiation may have the wavelength from about 1.0 micron to about 1.5 microns. In another exemplary embodiment, the UHMWPE is compression molded into bars prior to exposure to the crosslinking radiation.
摘要:
This invention provides methods to form modified hydrogel materials using reactive compounding. The method includes mixing a hydrogel material with a plasticizer in a compounding apparatus. During mixing, a reactive chemical compound is added to the mixture that reacts with the hydrogel material to form a modified hydrogel material.
摘要:
An orthopedic device including a base and an adhesive pad attached to the base. The adhesive pad receives an adhesive capable of securing the orthopedic device to tissue. The orthopedic device may also include an attachment mechanism for receiving and attaching additional orthopedic components and/or surgical instruments thereto. For example, a cut guide, a pin placer, or another orthopedic component or surgical instrument may be secured to the attachment mechanism of the orthopedic device of the present invention.
摘要:
Modified polymeric articles having modifying agents dispersed within and bonded to an interior region of the article. Methods of modifying polymer materials used to form polymeric articles, and methods of making polymeric articles from polymer particles having modifying agents bonded thereto.
摘要:
This invention provides methods to form modified hydrogel materials using reactive compounding. The method includes mixing a hydrogel material with a plasticizer in a compounding apparatus. During mixing, a reactive chemical compound is added to the mixture that reacts with the hydrogel material to form a modified hydrogel material.
摘要:
A prosthetic glenoid component for replicating the behavior of a patient's natural glenoid includes a rim that replicates the patient's natural glenoid labrum.