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HBS2 Headless Bone Screw is used for the treatment of intraarticular fractures and pseudoarthroses of smaller bones and bone fragments as well as for arthrodeses on small joints, especially in the scope of:

HBS2 MIDI: Scaphoid fractures, Scaphoid pseudoarthroses, Proximal pole fractures of the scaphoid, DIP arthrodeses, Metacarpal fractures, Metatarsal fractures of the processus styloideus ulnae, Proximal radial head fractures

HBS2 MINI: Scaphoid fractures, Scaphoid pseudoarthroses, Proximal pole fractures of the scaphoid, DIP arthrodeses, Metacarpal fractures, Fractures of the processus styloideus ulnae, Proximal radial head fractures of the processus styloideus radii

The HBS2 Headless Bone Screws are used in the field of hand surgery, accident surgery and reconstructive surgery, and in orthopedics for the treatment of intraarticular and extra articular fractures and pseudo arthroses of small bone fragments, and for arthrodesis on small joints.

The system consists of various screws and instruments for different treatment options.

HBS2 screws are cannulated, self-drilling, self-cutting, have a reversing thread and are available in two diameters with different thread lengths.

HBS2 MIDI screws (magenta) are available with a diameter of 2.0 mm (shaft) and in different lengths. HBS2 MINI screws (green) are available with a diameter of 1.7 mm (shaft) and in different lengths too.

These devices are delivered in non-sterile condition and must be reprocessed before use. All implants are made out of Ti6Al4V 3.7165.

The provided text is a 510(k) summary for the HBS2 Headless Bone Screw. It details the device's indications for use, description, classification, and comparison to predicate devices. It explicitly states that no clinical studies were performed for this device, and therefore, an AI/ML-based study with acceptance criteria, ground truth, and expert evaluation as described in the prompt is not applicable to this document.

The document primarily focuses on non-clinical tests to demonstrate substantial equivalence to legally marketed predicate devices. The non-clinical tests are summarized in a table, which includes standards for biological safety (cytotoxicity, chemical analysis, characterization of organic extractable, bioburden, LAL endotoxin, particle) and mechanical safety (torsional properties, driving torque, axial pullout strength, static and dynamic 3-point bending).

Therefore, I cannot provide the requested information about acceptance criteria for an AI/ML-based device and its study, as this document pertains to a medical device that was evaluated through non-clinical testing and substantial equivalence, not through AI/ML performance studies.

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The DePuy Synthes 2.4 mm Cannulated Screws are intended for fixation of fractures, fusions, osteotomies, non-unions, and malunions of small bones in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes 4.0 mm Cortex Screws are intended for fixation of fractures, fusions, osteotomies, non-unions, and malunions of the clavicle, scapula, olecranon, humerus, radius, ulna, pelvis, tibia, calcaneus, femur, fibula, and the bones of the foot and hand in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes 4.5 mm Cortex Screws are intended for fixation of fractures, fusion, osteotomies, non-unions, and malunions of various long bones, such as the humerus, femur and tibia; the pelvis, and the bones of the foot and hand in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes 3.5 mm and 4.0 mm Cannulated Screws are intended for fixation of fractures, fusions, osteotomies, non-unions, and malunions of small bone fragments in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes 4.5 mm Cannulated Screws are intended for fixation of fractures, fusions, osteotomies, non-unions, and malunions of long bones and long bone fragments; and the bones of the hand and foot, in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes 6.5 mm Cannulated Screws are intended for fixation of fractures, fusions, osteotomies, non-unions, and malunions of long bones and long bone fragments, pelvis, sacrum, and the bones of the foot in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation. These screws are also indicated for femoral neck fractures; slipped capital femoral epiphysis; an adjunct to DHS in basilar neck fractures; ankle arthrodesis; pediatric femoral neck fractures; intercondylar femur fractures; SI joint disruptions; and subtalar arthrodesis.

The DePuy Synthes 7.0 mm and 7.3 mm Cannulated Screws are intended for fixation of fractures, fusions, osteotomies, non-unions, and malunions of long bone fragments, pelvis, sacrum, and the bones of the foot in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation. These screws are also indicated for slipped capital femoral epiphysis; ankle arthrodesis; and subtalar arthrodesis.

The DePuy Synthes 1.5 mm Headless Compression Screws are intended for fixation of intra-articular fractures, avulsions, non-unions, and osteotomies of small bones and small bone fragments, as well as arthrodesis of small joints in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes 2.4 mm Headless Compression Screws are intended for fixation of fractures, non-unions, and malunions of small bones and small bone arthrodesis in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes 3.0 mm Headless Compression Screws are intended for fixation of intra-articular fractures, non-unions, malunions, and osteotomies of small bone fragments, as well as arthrodesis of small joints in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes 4.5 mm and 6.5 mm Headless Compression Screws are indicated for fixation of fractures, fusions, osteotomies, non-unions, and malunions of various bone fragments including bones of the foot, humerus, femur and tibia in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by screw fixation.

The DePuy Synthes Cortex, Cannulated, and Headless Compression Screws are metallic bone screws manufactured from Stainless Steel (ASTM F138), Commercially Pure Titanium (ASTM F67), and/or Titanium Alloy (ASTM F1295). The screws are available in multiple lengths and diameters, and are intended to be used as stand-alone bone screws for internal bone fixation of fractures, fusions, osteotomies, non-unions, and malunions in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by the screw fixation.

The DePuy Synthes Cannulated and Headless Compression screws are cannulated for use with guidewires for precise placement in bone with the exception of the 1.5 mm Headless Compression Screw, which is a solid screw and therefore does not allow for instrumentation with a guide wire. The Headless Compression Screws feature threaded heads that allow for purchase in the near cortex of bone during and after implantation, potentially reducing complications associated with countersinking of traditional cortex or cannulated screws.

This document is a 510(k) Pre-market Notification to the FDA for various bone fixation screws manufactured by DePuy Synthes. It aims to demonstrate substantial equivalence to previously cleared devices.

Based on the provided text, there is no acceptance criteria or study data related to an AI/ML powered medical device. This document pertains entirely to traditional medical devices (bone screws) and their mechanical properties, indications for use, and comparison to predicate devices. The "performance data" section explicitly states "There is no bench testing included in this submission," "There is no animal data included in this submission," and the "Clinical" section refers to "published clinical literature to support the safety and efficacy of the modifications to the Indications for Use" rather than a clinical study conducted by the manufacturer specifically for this submission.

Therefore, I cannot provide the requested information for an AI/ML powered medical device based on this document. The questions about test sets, data provenance, expert consensus, MRMC studies, standalone performance, and training sets are not applicable here.

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