K Number
K193050
Device Name
Alloclassic Zweymuller SL Femoral Stem, Alloclassic Zweymuller SL Offset Femoral Stem
Manufacturer
Date Cleared
2019-12-26

(55 days)

Product Code
Regulation Number
888.3353
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
Alloclassic® Zweymüller® SL/ SL Offset Femoral Stems: • Noninflammatory degenerative joint disease (NIDJD), e.g., avascular necrosis, osteoarthritis, and inflammatory joint disease (IJD), e.g., rheumatoid arthritis. · Failed previous surgery where pain, deformity, or dysfunction persists. • Revision of previously failed hip arthroplasty
Device Description
The Alloclassic® Zweymüller® SL Femoral Stem is designed as a conical straight stem with a rectangular cross section to ensure rotational stability. The general design of the Alloclassic Zweymüller SL Femoral Stem comprises a slim neck and a short taper. Alloclassic Zweymüller SL Femoral Stems are available in 14 sizes and can be implanted to achieve primary stability in cases of unexpected poor bone quality. Distally the stem is anchored primarily by its edges; proximally the surfaces anchor against the bone cortex. The Alloclassic Zweymüller SL Femoral Stem is manufactured from wrought Ti-Al-Nb titanium alloy (Protasul-100™, ISO 5832-11 / ASTM 1295-16). The entire stem below the neck of the hip stem is grit basted to provide enhanced bone/prosthesis interface. The design of Alloclassic® Zweymüller® SL Offset Femoral Stem is very similar to the previously cleared Alloclassic Zweymüller SL Femoral Stems (K962101, K030373), and identical to the previously cleared Alloclassic Zweymüller SL Offset Femoral Stem (K033664). Similar to the Alloclassic Zweymüller SL Femoral Stem, the Alloclassic Zweymüller SL Offset Femoral Stem is a conically shaped straight stem with a rectangular cross section for rotational stability. The entire stem below the neck of the hip stem is grit blasted to provide enhanced bone/prosthesis interface. The stem is available in 14 sizes and is manufactured from the wrought Ti-Al-Nb titanium alloy (Protasul-100™, ISO 5832-11 / ASTM 1295-16). In contrast to the Alloclassic Zweymüller SL Femoral Stem, the Alloclassic Zweymüller SL Offset Femoral Stem provides an additional 6.25 mm of offset (per size) and has a CCD/neck angle of 121° (vs 131° for SL stem). Overall the Alloclassic Zweymüller SL Offset Femoral Stem design provides a higher offset sometimes needed for correcting insufficient soft tissue balancing, restoration of leg length, and sufficient joint stability following total hip arthroplasty.
More Information

No
The device description focuses on the mechanical design, materials, and physical characteristics of a femoral stem for hip arthroplasty. There is no mention of software, algorithms, data processing, or any terms related to AI or ML. The performance studies described are related to packaging and mechanical integrity, not algorithmic performance.

Yes
The device is a femoral stem intended for use in total hip arthroplasty to treat conditions like degenerative and inflammatory joint diseases, and failed previous surgeries, which are therapeutic interventions.

No

This device is a femoral stem, designed as an implant for hip arthroplasty, not for diagnosing diseases or conditions. Its intended use is for surgical intervention in cases of degenerative or inflammatory joint disease, or failed previous surgery.

No

The device description clearly details a physical femoral stem made of titanium alloy, which is a hardware component.

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

Here's why:

  • Intended Use: The intended use clearly describes the device as a femoral stem for hip arthroplasty (hip replacement surgery). This is a surgical implant used in vivo (within the body) to treat conditions affecting the hip joint.
  • Device Description: The description details the physical characteristics, material, and design of a surgical implant. It discusses features related to implantation and stability within bone.
  • Lack of IVD Characteristics: An IVD device is used in vitro (outside the body) to examine specimens derived from the human body (like blood, urine, tissue) to provide information for diagnosis, monitoring, or screening. The provided information does not mention any such use or interaction with biological specimens outside the body.

Therefore, the Alloclassic® Zweymüller® SL/ SL Offset Femoral Stems are surgical implants, not IVD devices.

N/A

Intended Use / Indications for Use

Alloclassic® Zweymüller® SL/ SL Offset Femoral Stems:
• Noninflammatory degenerative joint disease (NIDJD), e.g., avascular necrosis, osteoarthritis, and inflammatory joint disease (IJD), e.g., rheumatoid arthritis.
• Failed previous surgery where pain, deformity, or dysfunction persists.
• Revision of previously failed hip arthroplasty

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

LZO, JDI, KWL, KWY

Device Description

The Alloclassic® Zweymüller® SL Femoral Stem is designed as a conical straight stem with a rectangular cross section to ensure rotational stability. The general design of the Alloclassic Zweymüller SL Femoral Stem comprises a slim neck and a short taper. Alloclassic Zweymüller SL Femoral Stems are available in 14 sizes and can be implanted to achieve primary stability in cases of unexpected poor bone quality. Distally the stem is anchored primarily by its edges; proximally the surfaces anchor against the bone cortex. The Alloclassic Zweymüller SL Femoral Stem is manufactured from wrought Ti-Al-Nb titanium alloy (Protasul-100™, ISO 5832-11 / ASTM 1295-16). The entire stem below the neck of the hip stem is grit basted to provide enhanced bone/prosthesis interface.

The design of Alloclassic® Zweymüller® SL Offset Femeral Stem is very similar to the previously cleared Alloclassic Zweymüller SL Femoral Stems (K962101, K030373), and identical to the previously cleared Alloclassic Zweymüller SL Offset Femoral Stem (K033664). Similar to the Alloclassic Zweymüller SL Femoral Stem, the Alloclassic Zweymüller SL Offset Femoral Stem is a conically shaped straight stem with a rectangular cross section for rotational stability. The entire stem below the neck of the hip stem is grit blasted to provide enhanced bone/prosthesis interface. The stem is available in 14 sizes and is manufactured from the wrought Ti-Al-Nb titanium alloy (Protasul-100™, ISO 5832-11 / ASTM 1295-16). In contrast to the Alloclassic Zweymüller SL Femoral Stem, the Alloclassic Zweymüller SL Offset Femoral Stem provides an additional 6.25 mm of offset (per size) and has a CCD/neck angle of 121° (vs 131° for SL stem). Overall the Alloclassic Zweymüller SL Offset Femoral Stem design provides a higher offset sometimes needed for correcting insufficient soft tissue balancing, restoration of leg length, and sufficient joint stability following total hip arthroplasty.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Hip joint

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)

Packaging performance testing was performed to verify that packaging configuration maintains integrity of the sterile barrier system up to the point of use and provides adequate protection to the product through the hazards of sterilization, handling, distribution and storage according to ISO 11607-1:2006 and ISO 11607-2:2006. Packaging Configuration testing was conducted by representative worst-case products.
Amendment of Design Controls with verification of mechanical integrity and resistance for instrument classification from Class I to Class II. Clinical data and conclusions were not needed for this device.

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.

K962101, K030373, K033664

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.

K182048

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

December 26, 2019

Image /page/0/Picture/1 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which consists of a blue square with the letters "FDA" in white, followed by the words "U.S. FOOD & DRUG" in blue, and then the word "ADMINISTRATION" in a smaller font size below that.

Zimmer GmbH Gaelle Georges Regulatory Affairs Senior Specialist Sulzerallee 8 Winterthur, 8404 Ch

Re: K193050

Trade/Device Name: Alloclassic Zweymuller SL Femoral Stem, Alloclassic Zweymuller SL Offset Femoral Stem Regulation Number: 21 CFR 888.3353 Regulation Name: Hip Joint Metal/Ceramic/Polymer Semi-Constrained Cemented Or Nonporous Uncemented Prosthesis Regulatory Class: Class II Product Code: LZO, JDI, KWL, KWY Dated: October 29, 2019 Received: November 1, 2019

Dear Gaelle Georges:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate 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) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part

1

801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4. Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely,

FOR Vesa Vuniqi Acting Assistant Director DHT6A: Division of Joint Arthroplasty Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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K193050

DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration

Indications for Use

Form Approved: OMB No. 0910-0120 Expiration Date: 06/30/2020 See PRA Statement below.

510(k) Number (if known)

Device Name

Alloclassic® Zweymüller® SL / SL Offset Femoral Stems

Indications for Use (Describe)

Alloclassic® Zweymüller® SL/ SL Offset Femoral Stems:

• Noninflammatory degenerative joint disease (NIDJD), e.g., avascular necrosis, osteoarthritis, and inflammatory joint disease (IJD), e.g., rheumatoid arthritis.

· Failed previous surgery where pain, deformity, or dysfunction persists.

• Revision of previously failed hip arthroplasty

Type of Use (Select one or both, as applicable)

Prescription Use (Part 21 CFR 801 Subpart D)Over-The-Counter Use (21 CFR 801 Subpart C)
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

CONTINUE ON A SEPARATE PAGE IF NEEDED.

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==============================================================================================================================================================================

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K193050

ZIMMER BIOMET

510(k) SUMMARY

| Sponsor: | Zimmer GmbH
Sulzerallee 8, P.O. Box
8404 Winterthur, Switzerland |
|----------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Gaelle Georges
Regulatory Affairs Senior Specialist
Telephone: +41 58 854 8136
Fax: +41 52 244 86 58 |
| Date: | October 29, 2019 |
| Trade Name: | Alloclassic® Zweymüller® SL Femoral Stem
Alloclassic® Zweymüller® SL Offset Femoral Stem |
| Common Name | Hip Prosthesis |
| Classification Product Code : | LZO, JDI, KWL, KWY |
| Device Classification Name: | Prosthesis, hip, hemi-, femoral, metal/polymer, cemented or
uncemented |
| Regulation Number / Description: | 21 CFR § 888.3353 - Hip joint metal/ceramic/polymer semi-
constrained cemented or nonporous uncemented prosthesis.
21 CFR § 888.3350 - Hip joint metal/polymer semi-constrained
cemented prosthesis.
21 CFR § 888.3360 - Hip joint femoral (hemi-hip) metallic
cemented or uncemented prosthesis.
21 CFR § 888.3390 - Hip joint femoral (hemi-hip) metal/polymer
cemented or uncemented prosthesis. |
| Predicate Device: | Alloclassic® Zweymüller® SL Femoral Stem, manufactured by
Zimmer GmbH, K962101, first cleared August 19, 1996,
subsequently modified by a design change and cleared March 6,
2003 under K030373
Alloclassic® Zweymüller® SL Offset Femoral Stem, manufactured
by Zimmer GmbH, K033664, cleared December 17, 2003 |
| Device Description: | The Alloclassic® Zweymüller® SL Femoral Stem is designed as a
conical straight stem with a rectangular cross section to ensure
rotational stability. The general design of the Alloclassic
Zweymüller SL Femoral Stem comprises a slim neck and a short
taper. Alloclassic Zweymüller SL Femoral Stems are available in
14 sizes and can be implanted to achieve primary stability in
cases of unexpected poor bone quality. Distally the stem is
anchored primarily by its edges; proximally the surfaces anchor
against the bone cortex. The Alloclassic Zweymüller SL Femoral
Stem is manufactured from wrought Ti-Al-Nb titanium alloy |

4

(Protasul-100™, ISO 5832-11 / ASTM 1295-16). The entire stem below the neck of the hip stem is grit basted to provide enhanced bone/prosthesis interface.

The design of Alloclassic® Zweymüller® SL Offset Femoral Stem is very similar to the previously cleared Alloclassic Zweymüller SL Femoral Stems (K962101, K030373), and identical to the previously cleared Alloclassic Zweymüller SL Offset Femoral Stem (K033664). Similar to the Alloclassic Zweymüller SL Femoral Stem, the Alloclassic Zweymüller SL Offset Femoral Stem is a conically shaped straight stem with a rectangular cross section for rotational stability. The entire stem below the neck of the hip stem is grit blasted to provide enhanced bone/prosthesis interface. The stem is available in 14 sizes and is manufactured from the wrought Ti-Al-Nb titanium alloy (Protasul-100™, ISO 5832-11 / ASTM 1295-16). In contrast to the Alloclassic Zweymüller SL Femoral Stem, the Alloclassic Zweymüller SL Offset Femoral Stem provides an additional 6.25 mm of offset (per size) and has a CCD/neck angle of 121° (vs 131° for SL stem). Overall the Alloclassic Zweymüller SL Offset Femoral Stem design provides a higher offset sometimes needed for correcting insufficient soft tissue balancing, restoration of leg length, and sufficient joint stability following total hip arthroplasty.

Indications For Use:

Alloclassic® Zweymüller® SL/ SL Offset Femoral Stems:

  • Noninflammatory degenerative joint disease (NIDJD), e.g., avascular necrosis, osteoarthritis, and inflammatory joint disease (IJD), e.g., rheumatoid arthritis.
  • Failed previous surgery where pain, deformity, or dysfunction persists
  • . Revision of previously failed hip arthroplasty
  • Comparison to Predicate Device: The intended use and indications for use of the modified devices, as described in its labeling, have not changed as a result of the modifications proposed in the present submission. Further, the materials, design features and sterilization method of the subject devices remain identical to the predicate devices.

Minor modifications have been implemented since the last clearances.

Modification of packaging configuration for the subject implant devices is proposed. The new packaging configuration and the methods to support the package integrity have been previously described in K182048 (Avenir Complete Hip System). The proposed changes do not alter the fundamental scientific technology shared by both the subject devices and predicate devices. In addition, the Instructions For Use (IFU) of the implant devices is proposed to be revised without any changes to the intended use, indications or contraindications: the IFU is being converted to a brand specific IFU and the content is adapted to the subject devices. Zimmer GmbH is furthermore seeking clearance for certain system-specific Class II instruments - these instruments that have previously considered Class I exempt and

5

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correction of classification to Class II is proposed within present submission.

Performance Data (Nonclinical and/or Clinical):

correction of classification to Class II is proposed within present
submission.

Non-Clinical Performance and Conclusions:

Packaging configuration change:

Packaging performance testing was performed to verify that packaging configuration maintains integrity of the sterile barrier system up to the point of use and provides adequate protection to the product through the hazards of sterilization, handling, distribution and storage according to ISO 11607-1:2006 and ISO 11607-2:2006. Packaging Configuration testing was conducted by representative worst-case products.

Correction of instrument classification from Class I to Class II:

Amendment of Design Controls with verification of mechanical integrity and resistance.

Clinical Performance and Conclusions:

Clinical data and conclusions were not needed for this device.

Conclusion: The subject devices have the same intended use and same indications for use as the predicate devices. The subject devices use the same operating principle, incorporate the same basic design and labeling and are manufactured and sterilized using the same materials and processes as the predicate devices.

Except for the modifications described in this submission the subject devices are identical to the predicate devices, and the performance data and analyses demonstrate that:

  • · any differences do not raise new questions of safety and effectiveness as established with performance testing; and
  • the subject devices are at least as safe and effective as the legally marketed predicate devices.