摘要:
A surgical instrument and method for forming a passage in bone having an enlarged cross-sectional portion is provided. The instrument includes an elongate member and a cutting element engaged thereto and transitionable between a retracted configuration for extending through a first portion of the passage and an expanded configuration for forming a second portion of the passage having an enlarged cross-section. In one embodiment, the cutting element is transitioned between the retracted and expanded configurations by axially displacing the cutting element relative to the elongate member. In another embodiment, the elongate member includes a tapping thread configured to cut threads along the first portion of the passage, and the cutting element is a blade configured to form the enlarged cross-section when transitioned to the expanded configuration. In another embodiment, the cutting element is arranged in an axial orientation when in the retracted configuration and an angular orientation when in the expanded configuration.
摘要:
A device for connection to a component used in association with spinal instrumentation, including a connector body, at least one clamp element, and at least one fixation element. The connector body defines a receptacle extending therethrough and opening onto an outer surface thereof. The connector body also defines a passage in transverse communication with the receptacle. The clamp element includes at least two arm portions defining a space therebetween having an open end. The clamp element is positioned within the passage in the connector body with the space between the arm portions generally aligned with the receptacle and with the component received through the open end and retained within the space. The fixation element interacts with the clamp element to displace the clamp element relative to the connector body to position at least a portion of the component within the receptacle.
摘要:
A surgical screwdriver is disclosed and can include a motor, a microprocessor coupled to the motor, and a key sensor coupled to the microprocessor. The key sensor can be configured to sense a key tag.
摘要:
A method of injection molding an orthopedic device comprising: injection molding a polymeric orthopedic device having a length along a longitudinal axis; and deliberately inducing, in the device, a material property change along the longitudinal axis by varying a molding parameter during the injection molding. The material property may be, for example, elastic modulus and/or density. The molding parameter varied during the injection molding may be a supply material pressure. The orthopedic device may be an elongated rod-shaped element, such as a spinal fixation rod, which may or may not have a substantially uniform cross-section, and may or may not have a metallic core. A corresponding apparatus is also described.
摘要:
A dispenser is provided that heats and dispenses a gel or lotion prior to the gel turning into lather. The dispenser can be selectively engaged with different sized and/or shaped cans.
摘要:
Systems and methods are provided that include a plate member engageable to the spinal column with an anchor assembly. The anchor assembly includes a coupling member having a post extending through at least one opening of the plate member and an anchor member pivotally captured in a receiver member of the coupling member below a lower surface of the plate member. A locking member secures the plate member to the coupling member. A crown in the receiver member of the coupling member is engaged by the plate member to secure the anchor member in position relative to the coupling member.
摘要:
A connecting device is provided for use in orthopedic surgery, for example to connect a spinal rod and a vertebral screw or hook. The connector generally includes a receiver member for receiving an elongated member, and an grommet member for receiving a bone fixation member. The grommet member is inserted into the receiver member so that the receiver member and grommet member are rotatably connected. One or more disks may be placed between the receiver member and grommet member to assist in locking the device.
摘要:
The present invention permits ISO-7816 smart cards and their non-smart card supporting devices to be connected and to interact over networks, such as networks based on Internet Protocol (IP), broadband, and wide area networks (WAN) using the T=1 protocol, similarly to if these devices were connected locally. Broadly, the invention takes a node address in a small T=1 embedded terminal and maps each address into a network address or a Universal Resource Locator (URL), such that different components of the terminal that are T=1 addressable are able to exist throughout for example, an IP network. The advantages offered by the invention include security and speed, resulting in increased ease of use and application development and increased autonomy for the smart card itself.
摘要:
Magnetically focussed tube having a gate cooler separate from the anode cooler and of higher power capacity than previous magnetically focussed tubes. Other structural features include simplified anode and cooling jacket and heat barrier at ends of cathode.
摘要:
A bone screw comprising a threaded shank having a longitudinal axis and including a first helical threading extending along a first length of the threaded shank portion and a second helical threading extending from a location proximately adjacent the first helical threading and along a second length of the threaded shank portion. The first helical threading defines a first volume between adjacent thread turns along the first length, and the second helical threading defines a second volume between adjacent thread turns along the second length, with the first volume being different from the second volume.