(29 days)
K 972317, K 974311
Not Found
No
The device description and performance summary focus on the material, design, and surgical procedure, with no mention of AI or ML capabilities.
Yes.
The device is intended to treat "incomplete glottis closure during phonation and/or swallowing, especially unilateral vocal cord paralysis," which is a medical condition.
No
Explanation: The provided text describes a medical implant (KURZ TVFMI) used to treat incomplete glottis closure, not to diagnose a condition. It focuses on the device's design, use, and performance as a treatment, not its ability to identify or characterize a disease.
No
The device description explicitly states the device is made of titanium and is a physical implant, indicating it is a hardware device.
No, this device is not an IVD (In Vitro Diagnostic).
Here's why:
- IVD Definition: In vitro diagnostics are tests performed on samples such as blood, urine, or tissue that have been taken from the human body to detect diseases, conditions, or infections. They are used to provide information for diagnosis, monitoring, or screening.
- Device Description and Intended Use: The description clearly states that this device is a titanium implant used to address incomplete glottis closure during phonation and/or swallowing, particularly in cases of unilateral vocal cord paralysis. It is surgically implanted into the vocal fold.
- Lack of Sample Analysis: The device does not involve the analysis of any biological samples taken from the patient. It is a physical implant used to modify the anatomy.
Therefore, based on the provided information, the KURZ TVFMI is a surgical implant, not an in vitro diagnostic device.
N/A
Intended Use / Indications for Use
Like the SE devices, the KURZ TVFMI is intended for use in medialization thyroplasty in patients with unilateral vocal fold paralysis and incomplete glottis closure during phonation and/or swallowing.
Incomplete glottis closure during phonation and/or swallowing, especially unilateral vocal cord paralysis.
Product codes
77 KHJ
Device Description
The KURZ TVFMI is made of medical grade, smoothly finished titanium.
The preformed titanium sheet implant can be adjusted intra-operatively to exactly fit the anatomic conditions and size of the patient. The angular shape, the bent flanges and the fastening with monofilament non-absorbable sutures prevent implant dislocation with great certainty.
The device comes in two (2) sizes - one each for mostly female and male patients.
Mentions image processing
Not Found
Mentions AI, DNN, or ML
Not Found
Input Imaging Modality
Not Found
Anatomical Site
vocal fold, glottis, intralarvngeal
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)
Clinical results to date have shown that the KURZ TVFMI compares favorably with SE devices regarding safety and effectiveness and exhibits the following additional features: Minimal Implant Adjustments During Operation, Good Fixation, Simplified and Shortened Procedure, Biocompatibility, MRI, Easy Handling, Voice Parameters.
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
Not Found
Predicate Device(s)
K 972317, K 974311
Reference Device(s)
Not Found
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 874.3620 Ear, nose, and throat synthetic polymer material.
(a)
Identification. Ear, nose, and throat synthetic polymer material is a device material that is intended to be implanted for use as a space-occupying substance in the reconstructive surgery of the head and neck. The device is used, for example, in augmentation rhinoplasty and in tissue defect closures in the esophagus. The device is shaped and formed by the suregon to conform to the patient's needs. This generic type of device is made of material such as polyamide mesh or foil and porous polyethylene.(b)
Classification. Class II.
0
MAY 1 8 1989
1
1991324
Image /page/0/Picture/2 description: The image shows a logo with the word "KURZ" inside a circle. The letters are stylized and have a stencil-like appearance, with breaks in the lines. The circle is not fully closed, with gaps at the top and bottom. The overall design has a slightly rough or textured look, as if it were created with a stamp or stencil.
Heinz Kurz GmbH Medizintechnik
Hausanschrift: Tübinger Straße 3 D-72144 Dußlingen
Telefon (0 70 72) 9 I Telefax (0 70 72) 9 I
2.4
Heinz Kurz GmbH · Medizintechnik · Postfach 39 · D-72142 Dullingen
510(k) SUMMARY of Safety and Effectiveness +
510(K) - 77 KHJ
SE Comparison Table
Heinz Kurz GmbH Medizintechnik
As required by Section 807.92
2.1 Submitter: [807.92 (a)(1)] Heinz Kurz GmbH Medizintechnik Tel. Tuebinger Str. 3 D-72144 Dusslingen Fax eMail Germany
+49-7072-91 79 0 +49-7072-91 79 79 ikurz@kurzmed.dc ustcinhardt@kurzmed.dc
- 2.2 Contact Person: [807.92 (a)(1)] Dagmar S. Maeser Business Support International Amstel 320-1 Tel. 1017 AP Amsterdam Fax eMail The Netherlands
+31-20-428 95 91 +31-20-428 94 29 bsi@xs4all.nl bsi2@compuserve.com
2.3 Date Summary Prepared: [807.92 (a)(1)] April 16, 1999
Device Names: [807.92 (a)(2)] Titanium Vocal Fold Medializing Implant Proprietary (TVFMI) Vocal Cord Medialization Implant Common Polymer, ENT Synthetic - Polyamide Classification (Mesh or Foil Material)
1
Reason for Submission: [807.81(2)] 2.5 New Device
2.6 Predicate Devices [807.92(a)(3)]
: :
| 2.6.1 | Manufacturer | Boston Medical Products, Inc.
K 972317 |
|-------|------------------|-------------------------------------------------------|
| | Proprietary Name | Montgomery Thyroplasty Implant System |
| | Catalog #'s | MTF-06 to MTF-10 (female)
MTM -08 to MTM-12 (male) |
| 2.6.2 | Manufacturer | Smith & Nephew Enterprises
K 974311 |
| | Proprietary Name | VoCoM (Vocal Cord Medialization)
Implant |
2.7 Device Description: [807.92(a)(4)]
The KURZ TVFMI is made of medical grade, smoothly finished titanium.
The preformed titanium sheet implant can be adjusted intra-operatively to exactly fit the anatomic conditions and size of the patient. The angular shape, the bent flanges and the fastening with monofilament non-absorbable sutures prevent implant dislocation with great certainty.
The device comes in two (2) sizes - one each for mostly female and male patients.
2.8 Intended Use: 1807.92 (a)(5)]
Like the SE devices, the KURZ TVFMI is intended for use in medialization thyroplasty in patients with unilateral vocal fold paralysis and incomplete glottis closure during phonation and/or swallowing.
2.9 Difference of Technological Characteristics when Compared to SE Devices | 807.92 (a)(6)]
The KURZ TVFMI material is titanium while SE devices are made of silicone [Boston Medical] and dense hydroxylapatite [S&N]. Like the SE devices, the TVFMI is preformed.
The simple design corresponds to the anatomic location. Fastening with monofilament non-absorbable sutures prevents dislocation.
2
The titanium can easily be adjusted in length and shape to the individual patient; therefore, only one size each for (mostly) male and female patients is required leading to a standardization of the procedure and considerably reduced inventory and health care costs. By comparison, the Montgomery Thyroplasty Implant comes in ten (10) sizes (5 each for female and male patients) and VoCoM in five (5).
2.10 Discussion of Safety and Effectiveness [807.92(b)]
Clinical results1 to date have shown that the KURZ TVFMI compares favorably with SE devices regarding safety and effectiveness and exhibits the following additional features:
Minimal Implant Adjustments During Operation 2.10.1
Due to its balance of elasticity and rigidity, the titanium sheet is easily bent (to create the exact tension required to securely hold the implant in the ventral section) and otherwise adjusted to meet the needs of the individual patient. These adjustments are permanently 'remembered'2 by the titanium. i.e. they hold that shape after implantation.
2.10.2 Good Fixation
The design assures optimal fixation and stabilization, thus minimizing the danger of dislocation. Implant movement is further eliminated by fastening with monofilament nonabsorbable sutures.
Extrusion of the implant after removal of the cartilage is highly unlikely, if not impossible.
2.10.3 Simplified and Shortened Procedure
The TVFMI comes only in two sizes (male, female) that can easily be adjusted to meet individual patient requirement. As a result, the surgical procedure has been simplified and shortened, thus improving the results due to reduced intralarvngeal swelling and hematoma.
2.10.4 Biocompatibility
ASTM F67 medical grade titanium has a proven record of excellent biocompatibility.
2.10.5 MRI
Testing in a 0.5 Tesla nuclear magnetic resonance tomograph has revealed no implant movement and no adverse tissue effects attributable to MRI-generated heating. The image quality may be
1 Exhibit 2: Titanium Vocal Fold Medializing Implant: Introducing a Novel Implant System for External Vocal Fold Medialization by Gerhard Friedrich, MD; reprint from ANNALS OF OTOLOGY, RHINOLOGY & LARYNGOLOGY, Jan. 99, Vol. 108, No. 1
2 The implant retains the new shape after exceeding the elastic yield point, i.e. the phase boundary between the elastic and plastic phase of titanium.
3
impeded or blurred in direct vicinity of the implant. To date, no report of adverse effects has come to the attention of the manufacturer.
2.10.6 Easy Handling
The implantation technique and handling are simple and time-saving, thus shortening the operation time and improving the results.
Due to the special design, the TVFMI is self-locking anteriorly because of its U-shape. The cartilage window is cut approx. 2 mm smaller than the implant length so that the TVFMI has to be inserted under slight tension. It expands in the endolarynx, snaps into place and automatically stabilizes its position.
2.10.7 Voice Parameters
At least equal, if not better improvement of all voice parameters can be achieved when compared to SE devices (s. Exh. 2, p. 80 re voice function tests and p. 81 for overview table of pre/postoperative glottal gap + voice dysfunction index).
2.11 Industry Standards: [807.92 (d)]
KURZ certifies compliance with required ISO/EN/ASTM/AAM//ANSI and other device-related standards that apply to the manufacture, packaging, labeling, sterilization, and reprocessing (of custom instruments) of subject devices including the validation of these processes.
2.12 Information Bearing on the Safety and Effectiveness:
[807.92 (b)(3)]
The KURZ TVFMI implant has the same intended use as the predicate devices. The different material (titanium) and other design do not adversely affect the safety and effectiveness of these implants, but rather enhance biocompatibility, implant stability, and voice results achieved.
The results of design validation and clinical testing raise no new issues of safety and effectiveness.
4
Image /page/4/Picture/2 description: The image is a black and white circular logo for the U.S. Department of Health & Human Services. The logo features the department's symbol, which consists of a stylized caduceus-like design with three abstract human figures. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged around the upper portion of the circle.
MAY 1 8 1999
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Ms. Dagmar S. Maeser Business Support Intl. Amstel 320-I 1017 AP Amsterdam The Netherlands
Re: K991324 Trade Name: Titanium Vocal Fold Medializing Implant (TVFMI) Regulatory Class: II Product Code: 77 KHJ Dated: April 16, 1999 Received: April 19, 1999
Dear Ms. Maeser:
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 requirements, as set forth in the Quality System Regulation (QS) 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 .
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Page 2 -- Ms. Dagmar S. Maeser
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.
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) 594-4613. 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,
A. Ralph Rosenthal
A. Ralph Rosenthal, M.D. Director Division of Ophthalmic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
6
Heinz Kurz GmbH Medizintechnik
| 510(k) Number | K991324 |
|---|---|
| Device Name | Titanium Vocal Fold Medializing Implant (TVFMI) |
| Classification | Polymer, ENT Synthetic -Polyamide |
| (Mesh or Foil Material) | |
| Product Code | 77 KHJ |
| Class II | |
| 21 CFR 874.3620 |
INDICATIONS FOR USE
Incomplete glottis closure during phonation and/or swallowing, especially unilateral vocal cord paralysis.
The TVFMI and custom accessories are exclusively intended for use by qualified medical personnel trained in laryngosurgical techniques.
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRE, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of Ophalmic Devices
510(k) Number. K991324
almic Devices
Prescription Use
OR
Over-The-Counter Use _
(Per CFR 801 109)
V
(Optional Format 1-2-96)