K Number
K050690
Device Name
CONNEXUS
Date Cleared
2005-07-07

(112 days)

Product Code
Regulation Number
888.3045
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
For orthopedic applications as filler for gaps or voids that are not intrinsic to the stability of the bony structure. Connexus is indicated to be packed gently into bony gaps in the skeletal system as a bone graft extender and as a bone void filler of the extremities and pelvis. These defects may be surgically created or the result of traumatic injury to the bone.
Device Description
Connexus is derived from selected donated human bone tissue that has been processed into particles. The bone particles are subsequently demineralized using a hydrochloric acid process. The demineralized bone matrix (DBM) is combined with an inert reverse phase carrier and formulated to a putty-like consistency. The carrier is a solution of polyethylene oxide polypropylene oxide block copolymer dissolved in water exhibiting reverse phase characteristics (i.e., an increase in viscosity as temperature increases).
More Information

No
The device description and performance studies focus on the biological and material properties of the bone graft extender/filler, with no mention of AI or ML technologies. The "Mentions AI, DNN, or ML" and "Mentions image processing" sections are explicitly marked as "Not Found".

Yes
The device is described as a "bone graft extender and as a bone void filler" for orthopedic applications to address "gaps or voids" in bony structures, indicating its use in treating or remedying a medical condition.

No
The device, Connexus, is described as a bone graft extender and bone void filler for orthopedic applications, not for diagnosing conditions. Its function is to fill gaps or voids in bone, which is a therapeutic rather than diagnostic purpose.

No

The device description clearly states that Connexus is derived from human bone tissue and combined with a carrier, indicating it is a physical material, 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 that the device is for orthopedic applications as a filler for bone gaps and voids. This is a therapeutic and structural application within the body.
  • Device Description: The description details the composition of the device as demineralized bone matrix combined with a carrier, designed to be implanted into the body.
  • Lack of IVD Characteristics: There is no mention of the device being used to test a sample (like blood, urine, or tissue) outside of the body to provide information about a person's health or condition. IVDs are used for diagnosis, monitoring, or screening.

Therefore, Connexus is a medical device intended for surgical implantation and not an in vitro diagnostic device.

N/A

Intended Use / Indications for Use

For orthopedic applications as filler for gaps or voids that are not intrinsic to the stability of the bony structure. Connexus is indicated to be packed gently into bony gaps in the skeletal system as a bone graft extender and as bony void filler of the extremities and pelvis. These defects may be surgically created or from the result of traumatic injury to the bone.

Product codes

MQV

Device Description

Connexus is derived from selected donated human bone tissue that has been processed into particles. The bone particles are subsequently demineralized using a hydrochloric acid process. The demineralized bone matrix (DBM) is combined with an inert reverse phase carrier and formulated to a putty-like consistency.

The carrier is a solution of polyethylene oxide polypropylene oxide block copolymer dissolved in water exhibiting reverse phase characteristics (i.e., an increase in viscosity as temperature increases).

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

skeletal system, extremities and pelvis.

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)

Performance of Connexus has been evaluated in rabbit and sheep models by radiographic and histological methods for the indications specified in the Premarket Notification.

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

Not Found

Predicate Device(s)

DynaGraft II Paste and Putty (K040419), AlloMatrix ® DBM Putty with inert carrier Sodium Carboxymethylcellulouse (K040980), InterGro® DBM with inert carrier Lecithin (K031399), Osteofil Paste DBM with inert carrier Porcine Collagen (K043420)

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 888.3045 Resorbable calcium salt bone void filler device.

(a)
Identification. A resorbable calcium salt bone void filler device is a resorbable implant intended to fill bony voids or gaps of the extremities, spine, and pelvis that are caused by trauma or surgery and are not intrinsic to the stability of the bony structure.(b)
Classification. Class II (special controls). The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance: Resorbable Calcium Salt Bone Void Filler Device; Guidance for Industry and FDA.” See § 888.1(e) of this chapter for the availability of this guidance.

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K050690

JUL 2 - 2005 510(k) Summary

IsoTis OrthoBiologics Connexus

1. Sponsor

IsoTis OrthoBiologics, Inc. 2 Goodvear, Suite B Irvine, CA 92618 U.S.A

Contact Person:Paul Doner
Telephone:949 855-7168
Facsimile:949 595-8711

March 2005 Date Prepared:

Device Name 2.

Proprietary Name:Connexus Putty
Common/Usual Name:Bone Void Filler
Classification Name:Sec. 888.3045 Resorbable calcium salt bone void filler device.

3. Predicate Devices

DynaGraft II Paste and Putty (K040419) AlloMatrix ® DBM Putty with inert carrier Sodium Carboxymethylcellulouse (K040980) InterGro® DBM with inert carrier Lecithin (K031399) Osteofil Paste DBM with inert carrier Porcine Collagen (K043420)

4. Device Description

Connexus is derived from selected donated human bone tissue that has been processed into particles. The bone particles are subsequently demineralized using a hydrochloric acid process. The demineralized bone matrix (DBM) is combined with an inert reverse phase carrier and formulated to a putty-like consistency.

The carrier is a solution of polyethylene oxide polypropylene oxide block copolymer dissolved in water exhibiting reverse phase characteristics (i.e., an increase in viscosity as temperature increases).

Intended Use 5.

For orthopedic applications as filler for gaps or voids that are not intrinsic to the stability of the bony structure. Connexus is indicated to be packed gently into bony gaps in the skeletal system as a bone graft extender and as a bone void filler of the extremities and pelvis. These defects may be surgically created or the result of traumatic injury to the bone.

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6. Technological Characteristics and Substantial Equivalence

Connexus and its predicate devices are similar in design, materials of construction and function. The proposed and predicate devices are osteoconductive and osteoinductive. The Connexus product and its predicate devices provide an interconnected, porous scaffold and an environment for new bone ingrowth and stimulate bone growth. The only differences between the proposed device and its predicates are the percentage of demineralized bone and the inert carriers used. Connexus is provided sterile and for single patient use. The donor bone in the Connexus product meets the requirements of the AATB. Product safety and effectiveness is adequately supported by the substantial equivalence information. materials data, and test results provided in this Premarket Notification.

Viral Inactivation Validation -

The methods for processing the DBM contained in Connexus were evaluated for their viral inactivation potential. A select panel of viruses representing various virus types, sizes, shapes, and genomes were evaluated. The viral inactivation testing demonstrated suitable viral inactivation potential of the processing methods for a wide range of potential human viruses.

Osteoinductivity Potential

The osteoinductive potential of the DBM used in Connexus is determined via an in vitro assay. The assay measures the alkaline phosphatase activity of myoblast cells. The level of alkaline phosphatese induction is compared to positive and negative DBM controls. Results from the assay were correlated with results from implantation of DBM into an athymic rat muscle pouch. Analysis of these results shows that the in vitro assay has been validated against the in vivo athymic rat model and predicts with at least 95% confidence the in vivo osteoinductivity of the test material. 67 out of 67 test lots that passed the in vitro assay passed the in vivo athymic rat assay via confirmation of intramuscular bone formation.

Each lot of DBM incorporated in the Connexus is evaluated for osteoinductive potential using an in vitro assay. Testing each lot of DBM assures that only DBM with ostoeinductive potential is used in Connexus. Although DBM used in the final product has been shown to be osteoinductive using an in vitro assay, the combination of DBM and inert carrier has not been evaluated for osteoinductivity; therefore, it is unknown to what extent the formulation components may alter the osteoinductivity character of the DBM. Additionally, it is unknown how osteoinductivity of the DBM component, measured via the in vitro assay, will correlate with human clinical performance of Connexus.

Product Performance Testing

Performance of Connexus has been evaluated in rabbit and sheep models by radiographic and histological methods for the indications specified in the Premarket Notification.

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These data substantiate Connexus Putty safety and effectiveness for the indications presented in this Premarket Notification.

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:

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DEPARTMENT OF HEALTH & HUMAN SERVICES

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 words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of an eagle with its wings spread, facing to the left.

JUL 7 - 2005

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Mr. Paul Doner IsoTis OthoBiologics Incorporated Director of Quality Assurance and Regulatory Affairs 2 Goodyear, Suite B Irvine, California 92618

Re: K050690

Trade Name: Connexus Regulation Number: 21 CFR 888.3045 Regulation Name: Reabsorbable calcium salt bone void filler device Regulatory Class: II Product Code: MQV Dated: June 23, 2005 Received: June 24, 2005

Dear Mr. Doner:

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. 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 (PMA), 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 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 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

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Page 2 -Mr. Paul Doner

This letter will allow you to begin marketing your device as described in your Section 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.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.

h

Sincerely yours

Miriam C. Provost, Ph.D.
Acting Director
Division of General, Restorative
and Neurological Devices
Office of Device Evaluation
Center for Devices and
Radiological Health

Enclosure

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510(k) Number (if known): K050690

Connexus TM Device Name:

Indications for Use:

Connexus is an osteoinductive and osteoconductive bone filling material indicated:

For orthopedic applications as filler for gaps or voids that are not intrinsic to the stability of the bony structure. Connexus is indicated to be packed gently into bony gaps in the skeletal system as a bone graft extender and as bony void filler of the extremities and pelvis. These defects may be surgically created or from the result of traumatic injury to the bone.

Prescription Use X (Part 21 CFR 801 Subpart D) AND/OR

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

PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NECESSARY)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Stupt Rurder

(Division Division of General, Restorative. and Neurological Devices

510(k) Number_________________________________________________________________________________________________________________________________________________________________