K Number
K992359
Device Name
MRS-TITAN
Date Cleared
2000-02-18

(219 days)

Product Code
Regulation Number
888.3353
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdparty
Intended Use
The MRS-Titan system is intended to be used as the acetabular part of a hip arthroplasty. The indications for use of the MRS-Titan system are revision operations and fractures of primary hip operated patients, especially with large bone defects in the acetabulum, as well as tumour situations at the acetabulum. Painful, disabling joint diseases of the hip resulting from degeneration, arthritis, rheumatoid arthritis, post traumatic arthritis. Revision of previous unsuccessfull femoral head replacement, cup arthroplasty or other procedure. Clinical management problem solve arthrodesis or alternative techniques are less likely to achieve satisfactory results. Bone stock is of poor quality or is inadequate for other reconstructive techniques as indicated deficiencies of the acetabulum.
Device Description
The patientmatched modular revision acetabular system MRS-Titan was developed to achieve best fixation of the cup in the acetabulum by using a cementless bone fixation technique. Depending on the needed diameter the surgeon is able to decide the size between Ø 48 mm and Ø 64 mm in 4 mm steps. All diameters are able to be used either with a caudal hook and a strap, two straps or only with two straps. In general the caudal hook is designed to fix the original center of rotation because generally the use of MRS-Titan is intended after the second, third or fourth revision operation at the natural acetabulum. Typically this condition shows a very bad boney situation. So this device allows the surgeon to create a good remodelling of the acetabular bone as well as a good mechanical stabilisation of the cup. In comparison to other systems having received the SEletter the straps are not fixed in one angle, rotation allows to adapt the straps in best angle situation the patient needs. The MRS components are single-use devices.
More Information

K963946, K 911718, K 971890, K 990032

Not Found

No
The summary describes a mechanical implant for hip arthroplasty and does not mention any software, algorithms, or data processing that would indicate the use of AI/ML.

Yes
The device is described as an "acetabular part of a hip arthroplasty" intended for "revision operations and fractures of primary hip operated patients, especially with large bone defects in the acetabulum, as well as tumour situations at the acetabulum." It is designed to address "painful, disabling joint diseases of the hip" and "revision of previous unsuccessful femoral head replacement." These applications directly involve treating or alleviating a medical condition, which is the definition of a therapeutic device.

No

The MRS-Titan system is described as an acetabular implant for hip arthroplasty, intended for revision operations and fracture repair, not for diagnosing medical conditions.

No

The device description clearly describes a physical implant (acetabular cup, straps, hook) made of titanium, intended for surgical implantation. It is not software.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use clearly states the device is an "acetabular part of a hip arthroplasty" used in surgical procedures for hip revision and fracture repair. This is a surgical implant, not a device used to examine specimens derived from the human body for diagnostic purposes.
  • Device Description: The description details a physical implant designed for mechanical fixation within the acetabulum. It discusses size, fixation methods (hooks and straps), and material properties. This aligns with a surgical device, not an IVD.
  • Lack of IVD Characteristics: There is no mention of analyzing biological samples (blood, urine, tissue, etc.), detecting analytes, or providing diagnostic information based on in vitro testing.

Therefore, the MRS-Titan system is a surgical implant, not an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

The MRS-Titan system is intended to be used as the acetabular part of a hip arthroplasty. The indications for use of the MRS-Titan system are revision operations and fractures of primary hip operated patients, especially with large bone defects in the acetabulum, as well as tumour situations at the acetabulum.

Painful, disabling joint diseases of the hip resulting from degeneration, arthritis, rheumatoid arthritis, post traumatic arthritis.
Revision of previous unsuccessfull femoral head replacement, cup arthroplasty or other procedure.
Clinical management problem solve arthrodesis or alternative techniques are less likely to achieve satisfactory results.
Bone stock is of poor quality or is inadequate for other reconstructive techniques as indicated deficiencies of the acetabulum.

Product codes (comma separated list FDA assigned to the subject device)

LZO

Device Description

The patientmatched modular revision acetabular system MRS-Titan was developed to achieve best fixation of the cup in the acetabulum by using a cementless bone fixation technique. Depending on the needed diameter the surgeon is able to decide the size between Ø 48 mm and Ø 64 mm in 4 mm steps. All diameters are able to be used either with a caudal hook and a strap, two straps or only with two straps. In general the caudal hook is designed to fix the original center of rotation because generally the use of MRS-Titan is intended after the second, third or fourth revision operation at the natural acetabulum. Typically this condition shows a very bad boney situation. So this device allows the surgeon to create a good remodelling of the acetabular bone as well as a good mechanical stabilisation of the cup. In comparison to other systems having received the SEletter the straps are not fixed in one angle, rotation allows to adapt the straps in best angle situation the patient needs.

The MRS components are single-use devices
Identification of all device components, sizes and materials:
Spherical Cup: Ti6Al4V (48, 52, 56, 60, 64mm diameter)
Stayhook caudal: TiRT12 (48, 52, 56, 60, 64mm diameter)
Staystrap cranial 35 mm: TiRT12 (48, 52, 56, 60, 64mm diameter)
Staystrap cranial 60 mm: TiRT12 (48, 52, 56, 60, 64mm diameter)
Countersunk screw: Ti6Al4V (M4 x 9,5, M4 x 12,5, M4 x 15,5)
MC-PE-Insert with snapring: UHMWPE (48x32, 52x32, 56x32, 60x32, 64x32, 48x28, 52x28, 56x28, 60x28, 64x28)
Spongiosascrew: Ti6Al4V (6,5 x 20, 6,5 x 25, 6,5 x 30, 6,5 x 35, 6,5 x 40, 6,5 x 45, 6,5 x 50, 6,5 x 55, 6,5 x 60)

Implant Materials: Medical Alloy Ti6Al4V, accord. to ASTM F 136 Ti1, CP Titanium for medical application, accord. to ASTM F 67.

The MRS-Titan System is designed and proven to match with the following hip head: Biolox® forte 12/14, manufactured by Ceramtec CE 0044, FDA Master File, MAF 746.

Sterilization: The MRS-Titan system metal and Polyethylene will be shipped in sterile package by Gamma-Radiation > 25 kGy.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Hip (acetabulum)

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Axial and lever arm disassembling (ASTM F 1820) testing results showed that there is enough safety regarding the lever arm disassembling force which is double as high as the load of an average human bending. This value covers all diameters and is explained for the smallest and the biggest version in item no. 3. Load values are: Diameter 48 mm: 1156 N and diameter 64 mm: 1460 N.
Fatigue testing (using the MRS-Titan while testing hip stems) according to ISO 7206-4 has demonstrated that the device with survived 5 x 10 cycles without failure while loaded according to ISO 7206.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K963946, K 911718, K 971890, K 990032

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 888.3353 Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis.

(a)
Identification. A hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis is a device intended to be implanted to replace a hip joint. This device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. The two-part femoral component consists of a femoral stem made of alloys to be fixed in the intramedullary canal of the femur by impaction with or without use of bone cement. The proximal end of the femoral stem is tapered with a surface that ensures positive locking with the spherical ceramic (aluminium oxide, A12 03 ) head of the femoral component. The acetabular component is made of ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene reinforced with nonporous metal alloys, and used with or without bone cement.(b)
Classification. Class II.

0

Manufacturers name: ROTEC MEDIZINTECHNIK GmbH Adress: Am Mühlberg 31 D - 91085 Weisendorf FEB 1 8 2000 Telephone: *49 – 9135 – 32 15 Contact Person: Dr.-Ing. Ulrich Holzwarth Telephone: *49 - 9135 - 71 06 38

Revised Summary of Safety & Effectiveness Information Supplied as part of the 510 (k) Application for the ROTEC MEDIZINTECHNIK GmbH MRS-Titan System, K 992359

Complete device description:

The patientmatched modular revision acetabular system MRS-Titan was developed to achieve best fixation of the cup in the acetabulum by using a cementless bone fixation technique. Depending on the needed diameter the surgeon is able to decide the size between Ø 48 mm and Ø 64 mm in 4 mm steps. All diameters are able to be used either with a caudal hook and a strap, two straps or only with two straps. In general the caudal hook is designed to fix the original center of rotation because generally the use of MRS-Titan is intended after the second, third or fourth revision operation at the natural acetabulum. Typically this condition shows a very bad boney situation. So this device allows the surgeon to create a good remodelling of the acetabular bone as well as a good mechanical stabilisation of the cup. In comparison to other systems having received the SEletter the straps are not fixed in one angle, rotation allows to adapt the straps in best angle situation the patient needs.

The MRS components are single-use devices Identification of all device components, sizes and materials:

NameArticle No.Diameter/sizeMaterial
Spherical Cup57348-0148Ti6Al4V
Spherical Cup57352-0152Ti6Al4V
Spherical Cup57356-0156Ti6Al4V
Spherical Cup57360-0160Ti6Al4V
Spherical Cup57364-0164Ti6Al4V
Stayhook caudal57248-0148TiRT12
Stayhook caudal57252-0152TiRT12
Stayhook caudal57256-0156TiRT12
Stayhook caudal57260-0160TiRT12
Stayhook caudal57264-0164TiRT12
Staystrap cranial 35 mm57248-2248TiRT12
Staystrap cranial 35 mm57252-2252TiRT12
Staystrap cranial 35 mm57256-2256TiRT12
Staystrap cranial 35 mm57260-2260TiRT12
Staystrap cranial 35 mm57264-2264TiRT12
Staystrap cranial 60 mm57248-2148TiRT12
Staystrap cranial 60 mm57252-2152TiRT12
Staystrap cranial 60 mm57256-2156TiRT12
Staystrap cranial 60 mm57260-2160TiRT12
Staystrap cranial 60 mm57264-2164TiRT12

1

NameArticle No.Diameter/sizeMaterial
Countersunk screw57348-03M4 x 9,5Ti6Al4V
Countersunk screw57348-08M4 x 12,5Ti6Al4V
Countersunk screw57348-28M4 x 15,5Ti6Al4V
MC-PE-Insert with snapring55148-0248 x 32UHMWPE
MC-PE-Insert with snapring55152-0252 x 32UHMWPE
MC-PE-Insert with snapring55156-0256 x 32UHMWPE
MC-PE-Insert with snapring55160-0260 x 32UHMWPE
MC-PE-Insert with snapring55164-0264 x 32UHMWPE
MC-PE-Insert with snapring55148-1248 x 28UHMWPE
MC-PE-Insert with snapring55152-1252 x 28UHMWPE
MC-PE-Insert with snapring55156-1256 x 28UHMWPE
MC-PE-Insert with snapring55160-1260 x 28UHMWPE
MC-PE-Insert with snapring55164-1264 x 28UHMWPE
Spongiosascrew51265-206,5 x 20Ti6Al4V
Spongiosascrew51265-256,5 x 25Ti6Al4V
Spongiosascrew51265-306,5 x 30Ti6Al4V
Spongiosascrew51265-356,5 x 35Ti6Al4V
Spongiosascrew51265-406,5 x 40Ti6Al4V
Spongiosascrew51265-456,5 x 45Ti6Al4V
Spongiosascrew51265-506,5 x 50Ti6Al4V
Spongiosascrew51265-556,5 x 55Ti6Al4V
Spongiosascrew51265-606,5 x 60Ti6Al4V

Included are Confidential Detailed Drawings of the MRS-Titan System

Implant Materials: Medical Alloy Ti6Al4V, accord. to ASTM F 136 Ti1, CP Titanium for medical application, accord. to ASTM F 67

Statement of Safety: We have reviewed all prior literature on this type of implant device and can not find a substantial body of information on the adverse effects with this device.

Axial and lever arm disassembling (ASTM F 1820) testing results (see item 3 above) showed that there is enough safety regarding the lever arm disassembling force which is double as high as the load of an average human bending. This value covers all diameters and is explained for the smallest and the biggest version in item no. 3. Load values are: Diameter 48 mm: 1156 N and diameter 64 mm: 1460 N.

Potential Risks:

The potential risks associated with this device are the same as with any joint replacement device. These include, but are not limited to:

  • Reaction to bone cement Fracture of the component Cardiovascular disorders Implant loosening/migration Soft tissue imbalance Deformity of the joint Dislocation Metal sensivitv
  • Bone fracture Hematoma Blood vessel damage Nerve damage Excessive wear Infection Delayed wound healing

2

Substantial equivalency: ROTEC MRS-Titan functions in a similar manner as predicted commercially available devices and are equivalent to systems cited in this application. (July 1ª 1999 and this one). MRS-Titan is substantially equivalent to other acetabular devices on the market in our design and intended function. The following devices are predicated to the MRS-Titan: Osteonics restauration gap, K963946. Biomeds modular acetabular reconstructive system. K 911718, Biomeds recovery protrusio cup, K 971890, Osteonics modular acetabular cup, microstructured version, K 963946, Biomeds modular protrusio cup. K 990032 (here are several different options with the use of a hook and straps).

Indications for use: The MRS-Titan system is intended to be used as the acetabular part of a hip arthroplasty. The indications for use of the MRS-Titan system are revision operations and fractures of primary hip operated patients, especially with large bone defects in the acetabulum, as well as tumour situations at the acetabulum.

The MRS-Titan System is designed and proven to match with the following hip head: Biolox® forte 12/14, manufactured by Ceramtec CE 0044, FDA Master File, MAF 746. Fatigue testing - using the MRS-Titan while testing hip stems - according to ISO 7206-4 has demonstrated that the device with survived 5 x 10 cycles without failure while loaded according to ISO 7206.

Sterilization: The MRS-Titan system metal and Polyethylene will be shipped in sterile package by Gamma-Radiation > 25 kGy, Statement of Truth and Accuracy is included.

3

Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of three human profiles facing to the right, with flowing lines suggesting movement or progress.

Public Health Service

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

FEB 1 8 2000

Dr. Ing Ulrich Holzwarth Head of Quality Assurance Rotec Medizintechnik Am Muhlberg 31 D-91084 Weisendorf Germany

Re: K992359 Trade Name: MRS Titan Regulatory Class: II Product Code: LZO Dated: December 10, 1999 Received: January 28, 2000

Dear Dr. Holzwarth:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.

If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations. Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (OS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.

This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

4

Page 2 – Dr. Ing Ulrich Holzwarth

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4595. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address "http://www.fda.gov/cdrh/dsmamain.html".

Sincerely yours,

Néil R.P. Ogden

James E. Dillard II 25 Acting Director Division of General and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

5

510(k) Number (if known): K 992359

Device Name: MRS-Titan

Indications for use:

  • Painful, disabling joint diseases of the hip resulting from degeneration, arthritis, rheumatoid . arthritis, post traumatic arthritis.
  • Revision of previous unsuccessfull femoral head replacement, cup arthroplasty or other ● procedure.
  • Clinical management problem solve arthrodesis or alternative techniques are less likely to . achieve satisfactory results.
  • Bone stock is of poor quality or is inadequate for other reconstructive techniques as . indicated deficiencies of the acetabulum.

(PLEASE DO NOT WRITE BELOW THIS LINE – CONTINUE ON ANOTER PAGE IF NEEDED

Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off)NKO Sw JZD
Division of General Restorative Devices
510(k) NumberK992359
Prescription UseX
OR
Over-The-Counter Use

(Optional Format 1-2-96)