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Intended Use: Plate and screw Implants are intended for temporary fixation, correction or stabilization of bones in various anatomical regions.

One-Quarter Tubular Plates 2.4/2.7 are indicated for fixation of fractures of the foot, hand, wrist, and forearm (including radius). The plates should only be used for load-sharing purposes, e.g., buttressing, tension banding, neutralization, or compression.

Straight Plates 2.4/2.7 are indicated for fixation of fractures, osteotomies, malunions and nonunions of the foot, hand, wrist, and forearm (including radius) and arthrodesis of small bones of the foot and hand.

Reconstruction Plates 2.4/2.7 are indicated for fixation of fractures of the foot, hand, wrist, and forearm (including radius)

Radius Distal Styloid Plate 2.4/2.7 is indicated for the fixation for fractures of the radial styloid that have metaphyseal comminution or as an adjunct to either volar of dorsal plate fixation when additional support of the radial styloid is required.

The Radius Proximal head plates 2.4/2.7 are indicated for extra-articular and intra-articular fractures of the proximal radius and multifragmented radial neck fractures.

The Radius Distal Volar Plates 2.4/2.7 are indicated for the fixation for fractures, fusions, or osteotomies of the distal radius.

One-Third Tubular Plates 3.5 are indicated for fixation of fractures of the elbow (distal humerus and ulna), and fibula. The plates should only be used for load-sharing purposes, e.g., buttressing, tension banding, neutralization, or compression.

Reconstruction Plates 3.5 are indicated for fixation of fractures of the elbow (distal humerus and ulna), wrist, and forearm (including radius), fibula, and calcaneus

Straight Plates 3.5 are indicated for fixation of fractures, osteotomies, malunions and nonunions of the elbow (distal humerus and ulna), wrist, forearm (including radius), and fibula.

Tibia T-Plates 3.5 are indicated for buttressing of partial articular fractures and bone fragments of the distal tibia.

The Clavicle Superior Plates 3.5 are indicated for:

• Fractures of the clavicle shaft
• Fractures of the lateral clavicle
• Malunions of the clavicle
• Non-unions of the clavicle

The Clavicle Hook Plate 3.5 is indicated for fixation of lateral clavicle fractures and dislocations of the acromioclavicular joint.

The Humerus Proximal Plates 3.5 are indicated for the fixation of fractures, fracture dislocations, non-unions and osteotomies of the proximal humerus.

The Tibia Proximal Lateral Plates 3.5 are indicated for:

• Split-type fractures of the lateral tibial plateau
• Lateral split fractures with associated depressions
• Pure central depression fractures
• Split or depression fractures of the medial plateau

The Tibia Distal Medial Plates 3.5 are indicated for the fixation of fractures, osteotomies, and non-unions of the distal tibia.

The Tibia Distal Anterolateral Plates 3.5 are indicated for the fixation of fractures, osteotomies, and non-unions of the distal tibia.

The Humerus Distal Dorsolateral Plates 2.7/3.5 are indicated for

• Intraarticular fractures of the distal humerus
• Supracondylar fractures of the distal humerus
• Non-unions of the distal humerus

The Humerus Distal Medial Plates 2.7/3.5 are indicated for

• Intraarticular fractures of the distal humerus
• Supracondylar fractures of the distal humerus
• Non-unions of the distal humerus

The Ulna Proximal Olecranon Plates 3.5 are indicated for

• Complex extra- and intra-articular olecranon fractures
• Non-unions of the proximal ulna
• Osteotomies
• Simple olecranon fractures

Broad Curved Plates 4.5/5.0 are indicated for fixation of fractures, osteotomies, malunions and nonunions of humerus, femur, and tibia.

Broad Plates 4.5/5.0 are indicated for fixation of fractures, osteotomies, malunions and nonunions of humerus, femur, and tibia.

Narrow Plates 4.5/5.0 are indicated for fixation of fractures, osteotomies, malunions and nonunions of humerus, and distal tibia.

T Plate 4.5/5.0 is intended to buttress metaphyseal fractures of the proximal humerus, medial tibial plateau and distal tibia. The plates should only be used for load-sharing purposes, e.g., buttressing, tension banding, neutralization, or compression.

T-Buttress Plates 4.5/5.0 are intended to buttress metaphyseal fractures of the proximal humerus, medial tibial plateau and distal tibia. The plates should only be used for load sharing purposes, e.g., buttressing, tension banding, neutralization, or compression.

LL-Buttress Plates 4.5/5.0 are intended to buttress metaphyseal fractures of the proximal humerus, medial tibial plateau and distal tibia. The plates should only be used for load sharing purposes, e.g., buttressing, tension banding, neutralization, or compression.

Femur Distal Plates 4.5/5.0 are indicated for distal shaft fractures, supracondylar fractures, intraarticular fractures, and periprosthetic fractures of the distal femur

Tibia Proximal Lateral Plates 4.5/5.0 are indicated for proximal shaft fractures, metaphyseal fractures, intra-articular fractures and periprosthetic fractures of the proximal tibia.

The Genostis Osteosynthesis System comprises of fracture fixation plates, corresponding screws and required surgical instruments. Different shapes and sizes are available to accommodate for different anatomical regions and locations of fractures. The plate screw interface is either locking, non-locking or, for some plates, realized by a combination hole offering both options (locking and non-locking).

All plates and screws are made of titanium alloy (Ti 6Al 4V ELI) according to ASTM F136 and ISO 5832-3.

The implants of the Genostis Osteosynthesis System are sterilized by radiation and are delivered sterile.

The provided FDA 510(k) clearance letter for the Genostis Osteosynthesis System does not describe a study involving an AI/software device or human readers. Instead, it describes a traditional medical device (bone fixation plates and screws) and primarily references non-clinical (biomechanical and biocompatibility) testing to demonstrate substantial equivalence to predicate devices.

Therefore, many of the requested criteria related to AI/software performance, human reader studies, and ground truth establishment in a diagnostic context are not applicable to this document.

However, I can extract and structure the information that is relevant to the device's acceptance criteria based on the provided text, particularly concerning non-clinical testing.

Here's the breakdown based on the information available:

Acceptance Criteria and Study for Genostis Osteosynthesis System

The Genostis Osteosynthesis System is a traditional medical device (bone fixation plates and screws), not an AI/software diagnostic device. As such, the "acceptance criteria" and "study" proving it meets them are primarily based on non-clinical engineering and biological tests, not AI performance metrics or human-in-the-loop diagnostic studies.

1. Table of Acceptance Criteria and Reported Device Performance

Note: The document states "All results were satisfactory" for all tests, indicating the device met the pre-defined acceptance criteria for each test.

2. Sample Sizes Used for the Test Set and Data Provenance

• Sample Size: The document does not specify the exact number of units or samples used for each biomechanical or biocompatibility test. It generally states that testing was "performed" and "conducted on final sterile product."
• Data Provenance: Not explicitly stated as "country of origin," but testing would be performed in a controlled laboratory environment. The tests are non-clinical (biomechanical and biocompatibility), not data from patients. The study is by nature prospective in that new manufactured devices were tested to meet the standards, not a retrospective analysis of existing data.

3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications

• Not Applicable. This is a medical device (hardware) clearance, not an AI/software diagnostic device that requires expert ground truth for interpretation of medical images or other diagnostic data. The "ground truth" here is the adherence to established engineering and biocompatibility standards.

4. Adjudication Method for the Test Set

• Not Applicable. As this is non-clinical mechanical and biocompatibility testing, there is no "adjudication" in the sense of reconciling expert opinions on diagnostic findings. The results are quantitative and objective measurements against established standard thresholds.

5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done

• Not Applicable. MRMC studies are for evaluating clinical interpretation of diagnostic results, typically with AI assistance. This device is a physical implant, not a diagnostic tool or AI.

6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done

• Not Applicable. This pertains to AI algorithm performance. The device is a bone fixation system and does not rely on an algorithm for its primary function.

7. The Type of Ground Truth Used

• Pre-defined Standards and Controls: The "ground truth" for this device's performance is established by well-defined, internationally recognized (ISO) and American (ASTM) standards for material properties, mechanical strength, and biocompatibility. The device must perform within the specified parameters of these standards. For example, screws must meet certain torque resistance (ASTM F543), and plates must meet specific load-sharing characteristics (ASTM F382).

8. The Sample Size for the Training Set

• Not Applicable. This device does not involve a "training set" in the context of machine learning or AI.

9. How the Ground Truth for the Training Set Was Established

• Not Applicable. There is no "training set" for this type of medical device clearance. The design and manufacturing processes are established based on engineering principles and existing predicate device designs, with performance validated against the standards mentioned above.

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Specific Indications:

1. 2.7/3.5mm Wise-Lock Dorsolateral Distal Humerus Plate
   2.7/3.5mm Wise-Lock Dorsolateral Distal Humerus Plate is intended for treating of Intraarticular Fracture of the distal humerus, Supracondylar fractures of the distal humerus and Non-unions of the distal humerus.
2. 2.7/3.5mm Wise-Lock Dorsolateral Distal Humerus Plate with Lateral Support
   2.7/3.5mm Wise-Lock Dorsolateral Distal Humerus Plate with Lateral Support is intended for treating of Intraarticular fractures of the distal humerus, Supracondylar fractures of the distal humerus and Non-unions of the distal humerus.
3. 2.7/3.5mm Wise-Lock Dorsolateral Medial Distal Humerus Plate
   2.7/3.5mm Wise-Lock Dorsolateral Medial Distal Humerus Plate are indicated for treating of Intraarticular fractures of the distal humerus, Supracondylar fractures of the distal humerus and Non-unions of the distal humerus.
4. 3.5mm Wise-Lock Extra-Articular Distal Humerus Plate
   3.5mm Wise-Lock Extra-Articular Distal Humerus Plate are indicated for fractures of the distal humerus.
5. PHEELOS-3.5mm Wise-Lock Proximal Humerus Plate, Short
   PHEELOS Short Indications

• · Dislocated two-, three-, and four-fragment fractures of the proximal humerus
• · Pseudarthroses in the proximal humerus
• · Osteotomies in the proximal humerus

6. PHEELOS-3.5mm Wise-Lock Proximal Humerus Plate, Long
   • As for PHEELOS Short, but for fractures extending to the shaft or without medial support.
7. 3.5mm Wise-Lock Proximal Humerus Plate
   The 3.5mm Wise-Lock Proximal Humerus Plate is intended for fractures and fracture dislocations, and nonunions of the proximal humerus.
8. 3.5mm Wise-Lock Periarticular Proximal Humerus Plate
   3.5mm Wise-Lock Periarticular Proximal Humerus Plate are indicated for fracture dislocations, osteotomies, and nonunions of the proximal humerus.
9. 3.5mm Wise-Lock Olecranon Plate
   3.5mm Wise-Lock Olecranon Plate is indicated for fixation of fractures and non-unions of the olecranon.
10. 3.5mm Wise-Lock Hook Plate
    3.5mm Wise-Lock Hook Plate is indicated for fractures, osteotomies of small bones including the ulna, radius, tibia and fibula.
11. 2.7mm Wise-Lock Screw, Self-Tapping (Hex Head)
    This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.
12. 3.5mm Wise-Lock Screw, Self-Tapping (Hex Head)
    This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.
13. 3.5mm Wise-Lock Screw, Self-Drilling, (Hex Head)
    This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.
14. 3.5mm Wise-Lock Cancellous Screw, Full Thread, Self-Tapping, (Hex Head) This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.
15. 3.5mm Wise-Lock Cancellous Screw, Short Thread, Self-Tapping, (Hex Head) This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.
16. 3.5mm Cortical Screw, Self-Tapping, (Hex Head)
    This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.
17. 4.0mm Cancellous Screw, Short Thread
    This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.
18. 4.0mm Cancellous Screw, Full Thread
    This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.
19. 2.7mm Cortical Screw, Self-Tapping, (Hex Head)
    This Screw is indicated for the fixation of bone and plate to produce compression in bones which is required to mend a bone injury.

The Humerus and Ulna System consists of various types of bone plates, Screws for implantation in the humerus and ulna bone to treat humerus and ulna bone fractures.
The Humerus and Ulna System consists of medial and postero-lateral distal humerus plates of various lengths and 2.7 mm locking screws. The plates are pre-contoured to match the anatomy of the distal humerus with a limited contact low profile design. The plate features locking compression holes which accept 2.4, 3.5, & 4.0 mm cortex screws, 2.4, 2.7 & 3.5 mm locking screws, and 4.0 mm cancellous screws. The System is available in Stainless Steel and Titanium.
These implants are sold in both non-sterile and sterile conditions.
Note- Non sterile products have to be sterilized before use.
The system is indicated for use in adult patients only. All implants are for single use only.
The humerus and Ulna System contains several plates and each plate has its intended uses.

The provided 510(k) summary describes a medical device, the "Humerus & Ulna System" by Auxein Medical Private Limited, which consists of various bone plates and screws for humerus and ulna bone fracture fixation. The document states that the device is substantially equivalent to legally marketed predicate devices.

However, the provided text does not contain information related to software or AI/ML components. Therefore, it is impossible to extract the acceptance criteria for an algorithm, the details of a study proving a device meets those criteria, or other AI/ML-specific information like sample sizes for test/training sets, expert ground truth establishment, adjudication methods, or MRMC studies.

The document primarily focuses on demonstrating substantial equivalence through:

• Comparison of technological characteristics: Product code, regulation number, regulatory class, indications for use, material, performance standards, sterilization, shelf-life, single use/reuse, operating principle, and dimensional verification are compared to predicate devices.
• Non-clinical (bench) testing: This includes material standards (ASTM F136/ISO 5832-3, ASTM F899-12, ASTM F138/ISO 5832-1), biocompatibility (ISO 10993), and mechanical performance (ASTM F382 for plates, ASTM F543 for screws, including driving torque, torsion, and axial pull-out tests).
• Sterilization, shelf-life, and packaging standards: (ISO 11137 series, ISO 17665 series, ISO 11140-1, ISO 11737 series, ISO 11607 series, ASTM F1980, ASTM F88, ASTM F1929).
• Bacterial Endotoxin testing: (USP , USP ).

All of these tests are standard for orthopedic implants and confirm the physical and biological safety and performance of the hardware, but they do not involve any AI/ML algorithm evaluation.

Therefore, based solely on the provided text, I cannot answer the specific questions related to acceptance criteria and studies for an AI/ML component. The device described is a physical implant system, not a software-driven diagnostic or treatment planning tool that would typically involve the type of AI/ML evaluation metrics requested.

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The 2.4mm Secure Locking Variable Angle Distal Radius Plate and Ø2.4 mm Secure Locking Screws, Self-Tapping are intended for fixation of complex intra- and extra-articular fractures arid osteotomies of the distal radius.

The 2.7mm/3.5mm Secure Locking Distal Humerus Medial Plate, 2.7mm/3.5mm Secure Locking Distal Humerus, Dorsolateral Plate, and 2.7mm/3.5mm Secure Locking Distal Humerus Plate, Dorsolateral With Lateral Support are indicated for intra-articular fractures of the distal humerus, comminuted supracondylar fractures, and nonunions of the distal humerus.

The 3.5mm Secure Locking Small Plate, 3.5mm Secure Locking T-Plate, Small with 3 Head Holes, and Ø3.5 mm Secure Locking Screws, Self-Tapping, are indicated for fixation of fractures, and non-unions of the clavicle, scapula, olecranon, humerus, radius, ulna, pelvis, distal tibia, fibula.

The 3.5 mm Secure Locking Superior-Anterior Clavicle Plate and 3.5 mm Secure Locking Superior-Anterior Clavice Plate With Lateral Extension is indicated for fixation of fractures, malunions, and ostectornies of the clavice in adults, and in both adolescents (12-18 years) and transitional adolescents (18-21 years), in which the clavicular growth plates have fused or in which the growth plates will not be crossed by the plate system.

The 3.5mm Secure Locking Olecranon Plate is indicated for fractures, osteotomies, malunions and non-unions of the olecranon.

The 3.5 mm Secure Locking Philos Proximal Humeral Internal Plate is indicated for fractures and fracture dislocations, osteotomies, and non-unions of the proximal humerus.

The 4.5/5.0mm Secure Locking Narrow LC Dynamic Compression Plate is indicated for fixation of various long bones, such as the humerus, femur and tibia and for use in fixation of peri-prosthetic fractures, and fixation of nonunions or malunions in adult patients.

The 4.5mm/5.0mm Secure Locking Distal Femoral Plate is intended for buttressing multifragmentary distal femur fractures including: supracondylar, intra-articular condylar, periprosthetic fractures, nonunions and malunions, and osteotomies of the femur.

The 4.5mm/5.0mm Secure Locking Medial Proximal Tibia Plate is intended to buttress metaphyseal fractures of the medial tibia plateau, split-type fractures of the medial split fractures with associated depressions and split or depression fractures of the medial tibia plateau. Also, for use in the fixation of nonunions of the medial proximal tibia and tibia shaft.

The 4.5mm/5.0mm Secure Locking L Buttress Plate and 4.5mm/5.0mm Secure Locking T Buttress Plate are intended to buttress metaphyseal fractures of the proximal humerus, medial tibial tibia. Also, for use in fixation of non-unions and malunions.

The 3.5mm/4.5mm/5.0mm Secure Locking Distal Tibia Plates are intended treatment of non-unions, and fractures of the distal tibia, including simple, comminuted, lateral wedge, depression, medial wedge, bicondylar, combinations of lateral wedge and depression, and fractures with associated shaft fractures.

The Ø3.5mm CORTICAL SCREW and Ø4.5mm CORTICAL SCREW are intended for fixation of fractures, osteotomies and non-unions of the clavicle, scapula, olecranon, humerus, radius, ulna, pelvis, tibia, calcaneous, femur and fibula 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 Ø2.7 mm Secure Locking Screws, Self Tapping, and Ø 2.7mm Cortical Screws are intended for fractures and osteotomies of small bone fragments, including the foot, ankle, 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 Ø5.0mm Secure Locking Screws, Self-Tapping are intended for fixation of various long bones, such as the humerus, femur and tibia. It is also for use in fixation of non-unions or malunions.

The 6.5mm Cancellous Screw, 16mm Thread, 32 Thread, Ø4.0mm CANCELLOUS SCREW, Partial Thread, Full Thread, and Ø4.0mm SMALL CANCELLOUS CANNULATED SCREW, Partial Thread, Full Thread are indicated for use in hindfoot and midfoot fusions, subtalar fusions, calcaneal osteotomies, midfoot reconstruction, and ankle arthrodeses.

The 6.5mm Cancellous Cannulated Screw, 16mm Thread, 32 Thread, Full Thread, and 7.0mm Cancellous Cannulated Screw, 16mm Thread, 32 Thread, are indicated for fracture fixation of large bone fragments, such as tibial plateau fractures, ankle arthrodeses, intercondylar femur fractures; and subtalar arthrodeses.

HEMC BRAND Locking Bone Plates and Screws Osteosynthesis Plating System consists of various shapes and sizes of plates featuring compression and locking holes, full-threaded-cortical, locking selftapping screws, compression and dynamic screws. The subject device system also consists of a variety of general use instruments (Class I), which include drill bits, forceps, plate benders, and drill guides.

The plates and screws are manufactured from Stainless Steel and Titanium alloy.

The system contains several models based on the size of the device and application site such as fixation/reconstruction of small fragment bones, forefoot, mid-foot, rear-foot, ankle, or other bones appropriate for the size of the device. The plate implants are in many models available, such as:, Reconstruction Plates, T-Plates, Anatomical Plates, Clavicle Plates.

These all are mainly divided into:

• . Large Fragment Plates
• Small Fragment Plates ●
• Mini Fragment Plates .

The locking screw implants are offered in corresponding diameter ranges from 2.4mm, 2.7mm, 3.5mm, 5.0mm diameters with lengths varying from a minimum length of 6 mm to maximum length of 90mm.

The non-locking screw implants are offered in 2.7mm, 3.5mm and 4.5mm diameters, with lengths ranqing from 10mm to 80mm.

The cancellous screw implants are 4.0mm and 6.5mm in diameter, with lengths ranging from 10 to 120 mm. The cancellous cannulated screw implants are offered in 4.0mm. 6.5mm and 7.0mm diameters and lengths ranging from 16mm to 130 mm.

HEMC BRAND Locking Bone Plates and Screws Osteosynthesis Plating System are provided non-sterile, the products must be sterilized prior to use. All implants are for single use only.

This document describes the 510(k) summary for the HEMC BRAND Locking Bone Plates and Screws Osteosynthesis Plating System. However, it does not contain information about acceptance criteria or a study proving the device meets those criteria in the context of an AI/ML device.

The information provided pertains to the substantial equivalence of a medical implant (bone plates and screws) to predicate devices, focusing on material, design, and mechanical performance rather than AI/ML algorithm performance.

Therefore, I cannot extract the requested information regarding acceptance criteria, study details, sample sizes, expert qualifications, adjudication methods, MRMC studies, standalone performance, or ground truth for an AI/ML device from the given text.

The document discusses the following:

• Device Name: HEMC BRAND Locking Bone Plates and Screws Osteosynthesis Plating System
• Intended Use: Fixation of various bone fractures and osteotomies.
• Predicate Devices: A list of Synthes Locking Compression Plate Systems and Screws.
• Non-Clinical Testing:
  • Material Standards: ASTM F136, ASTM F138, ASTM F139 (for Stainless Steel and Titanium alloy).
  • Performance Standards: ASTM F382 (Metallic Bone Plates), ASTM F384 (Metallic Angled Orthopedic Fracture Fixation Devices), ASTM F543 (Metallic Medical Bone Screws), and FDA guidance documents for orthopedic screws and fracture fixation plates.
  • Performance Results: Conforms to Static Four Point Bend Test, Dynamic Four Point Bend Test (for plates), Torsional Properties, Driving Torque, and Pull-out Test (for screws).
• Clinical Evaluation: Not necessary to demonstrate substantial equivalence, as the device is similar in design, pattern, and intended use to predicate devices.

In summary, the provided text does not describe an AI/ML device or its performance evaluation. It details the regulatory clearance process for a traditional medical implant based on substantial equivalence.

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NET Brand Small Fragment and Large Fragment Osteosynthesis System is intended for small and large bone fracture fixation, arthrodesis and osteotomy fixation. Examples include: fractures of the clavicle, scapula, humerus, olecranon, radius, ulna, distal femur, proximal tibial pilon, fibula, pelvis and acetabulum fractures; periprosthetic fractures; The use of locking plate/screw systems is suited for treatment of fractures in osteopenic bone. This system is not indicated for use in the spine.

NET Brand DHS/DCS plating system may be used for fixation of the fractures of proximal femur such as femoral neck, trochanteric, pertrochanteric or intertrochanteric zones.

NET Brand Small Fragment and Large Fragment Osteosynthesis Plating System consists of plates and screws in a variety of designs and sizes and made from Ti-6Al-4V alloy or stainless steel. Plates are provided in straight designs and in various geometric configurations that are commonly used in trauma and reconstructive surgery. Plates are provided with screw holes to accommodate non-locking and locking screws designs. Screws are provided in, 3.5mm Cortex Self-tapping, 4.5 mm Cortex self-tapping and 2.7mm self-tapping cortex locking, 3.5mm selftapping Cortex Locking, 5.0 mm cortex Locking thread designs in various lengths. This system is not indicated for use in spine.

NET Brand of DHS/DCS Plating System made from Ti-6Al-4V alloy or stainless steel and consist of DHS/DCS Plates, lag Screw, compression screw, and 4.5 Cortex screw Self Tapping, The DHS plates are available with barrel length 25mm (short barrel) and 38mm (Standard barrel) and barrel angels varies in 130° to 150°. The DCS plate is having angle of 95°

The DHS/DCS Screw is available in total length from 50 to 145 mm, thread length 22mm, shaft diameter 7 mm and outer diameter of 12.5. The thread of DHS/DCS Screw has a buttress type.

The DHS/DCS Compression Screw can be used to achieve fracture compression. Its dimension is available with thread length 36mm and outer diameter 4.0 mm.

The provided document is a 510(k) Premarket Notification for the "NET Brand Small Fragment and Large Fragment Osteosynthesis Plating System, NET Brand of DHS/DCS Plating System." This document aims to demonstrate substantial equivalence to legally marketed predicate devices, not to establish new performance criteria through a standalone study with acceptance criteria.

Therefore, the document does not contain the requested information about acceptance criteria and a study proving the device meets those criteria, as it is not a performance study in that sense.

Instead, the document focuses on demonstrating substantial equivalence to predicate devices. This is achieved by comparing the new device's technological characteristics, intended use, materials, and performance (via testing against established ASTM standards) to those of already approved predicate devices.

Here's an explanation based on the provided text, addressing the points where information is available or noting its absence:

1. Table of Acceptance Criteria and Reported Device Performance:

The document does not define specific "acceptance criteria" for clinical performance in terms of sensitivity, specificity, accuracy, or similar metrics for a new diagnostic or prognostic device. Instead, it demonstrates compliance with recognized engineering and material standards to show that the device performs equivalently to previously approved devices.

The "reported device performance" is essentially a confirmation of conformance to established ASTM standards for bone plates and screws.

2. Sample size used for the test set and the data provenance:

• Sample Size: The document does not specify a "sample size" in terms of patient cases or images, as it is a mechanical device submission. The testing involves mechanical specimens (e.g., plates and screws) tested according to the cited ASTM standards. The specific number of specimens tested for each standard is not detailed in this summary.
• Data Provenance: Not applicable as it's not a clinical or imaging study. The tests are mechanical and presumably conducted in a laboratory setting.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

Not applicable. This is a submission for a bone fixation device, not a diagnostic device requiring expert interpretation for ground truth establishment. Mechanical testing relies on standardized methodologies, not expert consensus on clinical cases.

4. Adjudication method for the test set:

Not applicable for a mechanical device submission.

5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:

Not applicable. This is a medical device for bone fixation, not an AI or diagnostic tool.

6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done:

Not applicable. This is a medical device for bone fixation, not an algorithm.

7. The type of ground truth used:

The "ground truth" in this context is the established performance benchmarks defined by recognized industry standards (ASTM F382, ASTM F384, ASTM F543 for performance, and ASTM F136, ASTM F138, ASTM F139 for materials). The device is deemed acceptable if it conforms to these standards, indicating mechanical properties are comparable to legally marketed devices.

8. The sample size for the training set:

Not applicable. This is a mechanical device, not a machine learning model requiring a training set.

9. How the ground truth for the training set was established:

Not applicable, as there is no training set for this type of device submission. The "ground truth" for demonstrating substantial equivalence rests on adherence to material and performance standards, which are developed and accepted by the scientific and engineering community.

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