[ add comment ] ( 15 views ) | permalink |
( 3 / 144 )
When was the BRYAN® Cervical Disc developed?
The BRYAN® Disc was initially developed in Mercer, WA in 1993. Surgeons have been using the BRYAN® Disc since 2000. To date, thousands of surgeries have been performed globally.
What is a BRYAN® Cervical Disc made of?
The BRYAN® Disc consists of a polyurethane nucleus designed to fit between two titanium alloy surfaces (shells). The bone-contacting surface of each shell includes a titanium porous coating to encourage bony in-growth and long-term stability. A polyurethane sheath surrounds the nucleus and is attached to the shells with titanium wire, forming a closed compartment. Titanium alloy seal plugs provide for retention of a lubricant. Anterior stops on each shell help to prevent posterior migration of the device.
Are the materials safe?
Device biocompatibility is assured through use of materials that have an established record of success in long-term implantation and documented testing in accordance with ISO 10993 guidelines. All metallic components are constructed from titanium or titanium alloy that conforms to American Society of Testing and Materials (ASTM) specifications and have a long history of successful application in total joint reconstructive devices. All polymer components are constructed from medical-grade polyurethane materials that have a history of successful use in cardiovascular applications and are backed by FDA master files documenting biocompatibility.
How long will a BRYAN® Cervical Disc last?
Many factors contribute to the longevity of an artificial disc prosthesis. However, the BRYAN® Cervical Disc has undergone significant testing to verify adequate durability of the prosthesis.
Talk with your doctor to learn more about the BRYAN® Cervical Disc.
It is important that you discuss the potential risks, complications, and benefits of the BRYAN® Cervical Disc with your doctor prior to receiving treatment, and that you rely on your physician's judgment. Only your doctor can determine whether you are a suitable candidate for this treatment.
[ add comment ] ( 11 views ) | permalink | related link |
( 3 / 125 )
When was the PRESTIGE® LP Cervical Disc System developed?
The PRESTIGE® LP Disc was designed in 2004. The device is based on several years of clinical expertise dating back to the Bristol/Cummins disc, which was first implanted in Bristol, UK in 1991.
What is a PRESTIGE® LP Cervical Disc made of?
The PRESTIGE® LP Disc is a titanium ceramic composite device with two articulating components (ball on top & trough on the bottom) that are attached to the vertebral bodies. This unique ball and trough design provides for replication of normal physiological motion. Dual stabilization rails and a plasma spray coating on each component help encourage bony in-growth and long-term stability. The PRESTIGE® LP Disc is available in a variety of sizes to allow the surgeon to closely match the patient's anatomy.
Are the materials safe?
Device biocompatibility is assured through use of materials that have an established record of success in long-term implantation and documented testing in accordance with ISO 10993 guidelines. All metallic components conform to American Society of Testing and Materials (ASTM) specifications and have a long history of successful application in total joint reconstructive devices.
How long will a PRESTIGE® LP Cervical Disc last?
Many factors contribute to the longevity of an artificial disc prosthesis. However, the PRESTIGE® LP Cervical Disc has undergone significant testing to verify adequate durability of the prosthesis.
[ 2 comments ] ( 119 views ) | permalink | related link |
( 3 / 116 )
offers the ability to optimize the opening pressure of a shunt system before and after implantation. A shunted patient's condition will often change over the course of their treatment. The programmable valve allows a surgeon to non-invasively change the opening pressure between 30mm H2O and 200 mm H2O in 18 steps; negating the need for revision surgery to alter the valve pressure. The programmability of the valve may allow for the development of specialized treatment regimes. The opening pressure of the CODMAN HAKIM Programmable Valve is changed through the use of an externally applied, codified magnetic field. The spring in the ball and spring mechanism of the valve sits atop a rotating spiral cam which contains a stepper motor. Applying a specific magnetic field to the stepper motor will cause the cam to turn slightly, increasing or decreasing the tension on the spring and ball, thus changing the opening pressure of the valve. The CODMAN HAKIM Programmable Valve is available in eight basic configurations, and each of these configurations can be purchased with a unitized distal catheter or valve only.
SIPHONGUARD Anti-Siphon device is a unique new device for preventing excessive CSF flow during positional changes. The SIPHONGUARD device is integrated into the current Programmable and Precision Fixed Pressure Valve technologies, as well as a stand-alone device. The SIPHONGUARD device can be placed anywhere distal to the valve and is unaffected by scar tissue encapsulation or external pressure. The mechanical design detects the difference between the normal and excessive flow and closes the primary pathway only when excessive flow occurs. The secondary pathway is always open and allows for the slow release of CSF when the primary pathway is closed.
The SIPHONGUARD Anti-Siphon device never totally closes the shunt system but instead uses resistance to impede flow. The SIPHONGUARD device utilizes proven ball and cone technology, which is highly reliable.
[ add comment ] ( 9 views ) | permalink |
( 3 / 122 )The MIETHKE proGAV is a position-dependent valve.
This means that the opening pressure of the valve varies continuously with the patient´s body position. To adapt proGAV to the individual patient, one opening pressure is selected for the patient´s horizontal body position and one for the vertical position.
;)
[ add comment ] ( 15 views ) | permalink |
( 3 / 113 )
Calendar
