Abstract:
A translaminar screw is formed from a polymer material (such as PEEK, PLLA, PCL, carbon fiber PEEK, and the like) so that the screw does not come loose, even after an extended period of mobilization. Spinal implants, instrumentation, and methods relating to stabilization and/or fusion of a facet joint via trans-facet and intra-facet delivery of the implants are disclosed herein. The implant or screw functions as a sort of flexible mechanical staple and/or key that prevents sliding motion between the diarthroidal surfaces of the facet joint. The spinal implant includes an elongated member extending from a distal tip to a proximal end having a head formed thereon. The elongated member can further include a threaded portion. The implant member can be, for example, a polymer translaminar screw that is formed from one of a PEEK, PLLA, PCL, carbon fiber PEEK, or similar polymer or other relatively flexible material.
Abstract:
A digitizer device comprises an elongated body and legs connected to the elongated body. At least one joint is between the legs and the elongated body such that free ends of the legs are displaceable relative to one another. An inertial sensor unit is connected to the elongated body, the inertial sensor unit having a preset orientation aligned with the elongated body. A table reference device comprises a body adapted to be fixed to an operating table. An inertial sensor unit is with a preset orientation related to the operating table. A patient coordinate system comprising orientation data obtained from the inertial sensor units of the digitizer device and the table reference device
Abstract:
The present invention involves a system and methods for assessing the state of the neuromuscular pathway to ensure further nerve tests aimed at detecting at least one of a breach in a pedicle wall, nerve proximity, nerve direction, and nerve pathology, are not conducted when neuromuscular blockade levels may decrease the reliability of the results.
Abstract:
One or more medical devices may be provided that may be used, for example, in bariatric surgery including a vertical sleeve gastrectomy. The one or more medical devices may include a laparoscopic sleeve gastrectomy stapling guide in conjunction with a calibration tube in accordance with one or more examples. According to an example, the calibration tube may be a flared, multi- diameter calibration tube. The flared, multi-diameter calibration tube may have a first diameter along a portion of the tube and a second diameter that may larger than the first diameter along at least another portion of the tube. The calibration tube may be used in conjunction with the stapling guide to align stomach such that it may be stapled along the stapling guide (e.g., to perform the vertical sleeve gastrectomy).
Abstract:
A translaminar screw is formed from a polymer material (such as PEEK, PLLA, PCL, carbon fiber PEEK, and the like) so that the screw does not come loose, even after an extended period of mobilization. Spinal implants, instrumentation, and methods relating to stabilization and/or fusion of a facet joint via trans-facet and intra-facet delivery of the implants are disclosed herein. The implant or screw functions as a sort of flexible mechanical staple and/or key that prevents sliding motion between the diarthroidal surfaces of the facet joint. The spinal implant includes an elongated member extending from a distal tip to a proximal end having a head formed thereon. The elongated member can further include a threaded portion. The implant member can be, for example, a polymer translaminar screw that is formed from one of a PEEK, PLLA, PCL, carbon fiber PEEK, or similar polymer or other relatively flexible material.
Abstract:
A fatigue testing system (100) provides simultaneous cycle testing for a plurality of prosthetic devices under simulated physiological loading conditions. A plurality of sample holders (129) containing test samples (130) of prosthetic devices is positioned between a distribution chamber (126) and a return fluid chamber (136) to form an integrated test chamber (106). A reciprocating linear drive motor (105) operates a rolling bellows diaphragm (115) to cyclically pressurize fluid within the test chamber (106) and drive the pressurized fluid through the prosthetic devices (130) being tested. The test chamber (106) defines a return flow conduit (124) in fluid communication with each of the sample holders (129), the return fluid chamber (136), and the distribution chamber (126). Compliance chambers (135) and throttle valves (132) associated with each of the sample holders (129) regulate the pressure gradient and back pressure across the prosthetic devices (130) being tested.
Abstract:
Pedicle screws are designed to provide polyaxial coupling to pedicles of a vertebra. Intermediate pieces (80) are attached to the pedicles screws (140, 142, 148) and receive extender shafts (180A, 182A, 188A). Extenders (180A, 182A, 188A) are inserted in the intermediate pieces (80). The extenders (180A, 182A, 188A) project the anatomic points located in the cages (152) outside the patient's body to facilitate proper contouring of a rod. An alignment linkage (310) is used to ensure that the extenders (180A, 182A, 188A) are parallel to each other. The alignment linkage (310) includes a linkage frame (312), an articulating linkage (314) and a locking member (316). The articulating linkage (314) has all rotational degrees of freedom and thereby adapts to any varying trajectories of the extenders and distance between the extenders. The alignment linkage (310) includes a locking member (316) with a pop-up indicator. The pop-up indicator notifies the users when the locking member (316) is tightened with two of the extenders in non-parallel configuration.
Abstract:
A knee arthroplasty assembly for use in a patient's knee joint including a tibia and a femur is disclosed. The assembly can include a tool (10), a first accessory (90), and a second accessory (100). The tool can include a tibial component (14) configured for placement against the tibia and a femoral component (16) configured for placement against the femur. The femoral component can be moveably coupled to the tibial component to place the patient's knee joint in tension by separating the tibia and the femur. The first accessory can be removeably coupled to the tibial component of the tool. The second accessory can be referenced to the first accessory and can have a reference indicator (114A, 114B) that references the femur for determining a size of the femur.
Abstract:
Various embodiments of the present disclosure are directed to apparatuses, devices, and procedures for unsedated in-office tracheoesophageal puncture (TEP) using transnasal esophagoscopy (TNE) and a measurement cannula, referred to as a TEP measurement and insertion device (MAID or TEP MAID). In some embodiments, a MAID is configured for use with a mini-tracheostomy kit; in other embodiments, a MAID is configured to be carried and automatically or semi-automatically deployed, for instance, by a handheld mechatronic device or an automated device such as a medical robot that carries an automated tracheoesophageal puncture and voice prosthesis insertion end effector. In accordance with an aspect of the present disclosure, a MAID has a body that carries or includes indicators, indicia, or markings that facilitate or enable substantially direct and/or immediate estimation, identification, or measurement of a tissue extent or thickness corresponding to or across a tracheoesophageal fistula (e.g., a tracheoesophageal dividing wall thickness), and selection and insertion of a voice prosthesis, such as a non-indwelling voice prosthesis from Blom-Singer. In certain embodiments, a MAID includes at least an outer measurement cannula and an inner adaptor cannula configured to fit over or matingly engage with a dilator, such as a short dilator provided in Portex's mini-tracheostomy kit.
Abstract:
A laparoscopic scalpel includes a shaft and a recess disposed in a surface of the shaft proximal to a distal end of the shaft. A blade is attached to the shaft. The blade includes a cutting edge having a portion exposed by the recess and oriented outwardly from the recess. A proximal end of the portion of the cutting edge exposed by the recess is disposed further from the surface than is a distal end of the portion of the cutting edge exposed by the recess.