(128 days)
Not Found
No
The description focuses on the physical principles of measurement (applanation pneumatometry and reflection pulsed ultrasound pachymetry) and does not mention any AI/ML components or algorithms. The performance studies describe standard clinical and model-based testing, not AI/ML model training or validation.
No
The device is described as a diagnostic instrument used for measurement and screening, not for treatment.
Yes
The "Intended Use / Indications for Use" section explicitly states that the device "is a diagnostic instrument" and is intended for use "as a screening, monitoring or diagnostic aid".
No
The device description explicitly states it is a "portable, battery operated, handheld ophthalmic instrument" comprised of "electronics, transducer handpiece, protective membranes and optionally, a foot pedal," indicating it is a hardware device with integrated software, not a software-only device.
Based on the provided information, the TonoPach Ultrasonic Tonometer/Pachymeter Model P-201 is not an In Vitro Diagnostic (IVD).
Here's why:
- Intended Use: The intended use clearly states that the device is for measuring intraocular pressure and corneal thickness in patients. This involves direct interaction with the human body (the cornea).
- Device Description: The device is a handheld ophthalmic instrument that uses a transducer handpiece to make measurements on the cornea. This is an in vivo measurement.
- Anatomical Site: The anatomical site is the cornea, which is part of the living eye.
- Performance Studies: The performance studies involve testing on live rabbit eyes, freshly enucleated porcine eyes, and human volunteers. This further confirms its use on biological tissues, not in vitro samples.
In Vitro Diagnostics (IVDs) are devices intended for use in the examination of specimens derived from the human body (such as blood, urine, tissue samples) to provide information for diagnostic purposes. The TonoPach does not examine such specimens; it directly measures physical properties of the eye.
N/A
Intended Use / Indications for Use
The TonoPach Ultrasonic Tonometer/Pachymeter Model P-201 is a diagnostic instrument that is intended for use in the measurement of both intraocular pressure and corneal thickness. It is intended for use during or following surgery and as a screening, monitoring or diagnostic aid in patients with normal, disease-induced or surgically altered anatomy, or in glaucoma suspects under current therapeutic guidelines.
Product codes
HKX, 90-IYO
Device Description
The TonoPach is a portable, battery operated, handheld ophthalmic instrument which measures both intraocular pressure (IOP) and corneal thickness (CT) simultaneously and at the same locus on the cornea. The device uses the principles of applanation pneumatometery to measure IOP and the principles of reflection pulsed ultrasound pachymetry to measure CT. The system is comprised of the TonoPach electronics, transducer handpiece, protective membranes and optionally, a foot pedal.
Mentions image processing
Not Found
Mentions AI, DNN, or ML
Not Found
Input Imaging Modality
Not Found
Anatomical Site
Cornea, Eye
Indicated Patient Age Range
Not Found
Intended User / Care Setting
office, bedside or in remote locations, eye clinic volunteers
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
Inanimate:
- Tonometry Model: water-filled spherical membrane attached to a manometer. The TonoPach handpiece tip touches the sphere to mimic intraocular pressure.
- Pachymetry Model: polycarbonate wafers of varying thicknesses. The TonoPach handpiece tip touches a wet wafer to mimic the cornea for thickness measurement.
Animal:
- Rabbit Eyes: Live rabbit eyes were used to test the tonometer and pachymeter portions of the TonoPach, evaluate performance on a live eye, and assist in evaluating numerical accuracy and reproducibility.
- Porcine Eyes: Freshly enucleated porcine eyes were used for several studies, predominately to verify and validate tonometer accuracy and reproducibility. One study demonstrated repeatability with three porcine eyes studied at each 10 mmHg pressure over a range of 5 to 80 mmHg with 10 independent measurements per pressure.
Clinical Trial:
- Participants: Eye clinic volunteers who required tonometry. All patients who agreed to volunteer were admitted to the study.
- Sample Size: 347 eyes were tested for tonometry.
- Protocol: Tonometry testing was the predominant data collected, compared to Goldmann tonometry.
Summary of Performance Studies
Study Type: Inanimate, Animal (Rabbit and Pig), and Clinical Trial (Human) evaluations.
Inanimate Testing:
- Tonometry: Used a water-filled spherical membrane attached to a manometer to mimic intraocular pressure.
- Pachymetry: Used polycarbonate wafers of varying thicknesses touched by the TonoPach handpiece tip, mimicking the cornea for thickness measurement.
Animal Testing:
- Rabbit Eyes: Tested tonometer and pachymeter portions on live eyes to evaluate performance, numerical accuracy, and reproducibility.
- Porcine Eyes: Primarily used for tonometer accuracy and reproducibility verification and validation. A repeatability study involved 3 porcine eyes, tested at each 10 mmHg pressure from 5 to 80 mmHg with 10 independent measurements per pressure.
Clinical Trial:
- Sample Size: 347 eyes.
- Study Type: Comparison of TonoPach tonometry to Goldmann tonometry in eye clinic volunteers.
- Key Results: Scatter and Bland & Altman plots, mean, standard deviation, and variance around the mean reveal that the TonoPach meets or exceeds specifications.
Key Metrics
Not Found
Predicate Device(s)
Reference Device(s)
Not Found
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 886.1930 Tonometer and accessories.
(a)
Identification. A tonometer and accessories is a manual device intended to measure intraocular pressure by applying a known force on the globe of the eye and measuring the amount of indentation produced (Schiotz type) or to measure intraocular tension by applanation (applying a small flat disk to the cornea). Accessories for the device may include a tonometer calibrator or a tonograph recording system. The device is intended for use in the diagnosis of glaucoma.(b)
Classification. Class II.
0
510(k) SUMMARY
| 1 | Submitter (Contact) Information | |
|---|---|---|
| A | Company Name/Address: | RetinaPharma Technologies, Inc. |
| 944 Morgan Road | ||
| Jenkintown, PA 19046 | ||
| B | Company Phone: | (215) 885-4558 |
| C | Company Fax: | (215) 885-2788 |
| D | Contact Person: | Terry A. Fuller, Ph.D. |
| President | ||
| E | Manufacturing Location: | The Company has not established a manufacturing facility. |
| It will notify the Agency upon its establishment. |
- 2 Device Information
A Device Trade Name: TonoPach™ Ultrasonic Tonometer/Pachymeter Model P-201 (the "TonoPach™")
B Device Classification:
The TonoPach is a combination of two devices, a pneumatometer and a pachymeter, which have already been determined to be substantially equivalent to legally marketed predicate devices with regard to safety, effectiveness and intended use. The device classifications are presented in the following table.
| Pneumatometer | Pachymeter | |
|---|---|---|
| Common Name: | Tonometer for Measuring | |
| Intraocular Pressure | Ultrasonic Pachymeter | |
| for Measurement of | ||
| Corneal Thickness | ||
| Classification Name: | Tonometer, AC Powered | Ultrasonic Pulsed Echo |
| Imaging System | ||
| Product Code: | HKX | 90-IYO |
| Regulatory Class & Tier: | II | II |
| Regulatory Number: | 21 CFR 866.1930 | 21 CFR 892.1560 |
| Classification & Review | ||
| Advisory Committees | Ophthalmic | Radiology |
3 Substantial Equivalence
The RetinaPharma TonoPach Ultrasonic Tonometer/Pachymeter is judged to be substantially equivalent in safety, effectiveness and intended use to the following legally marketed devices:
1
| Predicate Device | Manufacturer | 510(k) | Date Cleared |
|---|---|---|---|
| TonoPen ophthalmic | |||
| tonometer | Oculab, Inc. | K 852774 | August 20, 1985 |
| Pocket Ultrasonic | |||
| Pachymeter | Quantel Medical, Inc. | K993674 | July 13, 2000 |
| Echoscan Model US-1800 | Nidek, Inc. | K020876 | May 3, 2002 |
I ist of predicate devices
Device Description. ব
The TonoPach is a portable, battery operated, handheld ophthalmic instrument which measures both intraocular pressure (IOP) and corneal thickness (CT) simultaneously and at the same locus on the cornea. The device uses the principles of applanation pneumatometery to measure IOP and the principles of reflection pulsed ultrasound pachymetry to measure CT. The system is comprised of the TonoPach electronics, transducer handpiece, protective membranes and optionally, a foot pedal.
ട Intended Use
The TonoPach Ultrasonic Tonometer/Pachymeter Model P-201 is a diagnostic instrument that is intended for use in the measurement of both intraocular pressure and corneal thickness. It is intended for use during or following surgery and as a screening, monitoring or diagnostic aid in patients with normal, disease-induced or surgically altered anatomy, or in glaucoma suspects under current therapeutic guidelines.
6 Technological Equivalence
Table 6.1 provides a list of predicate devices and the "k" number. In Tables 6.2, 6.3 and 6.4 the TonoPach Pachymeter portion and the Ultrasonic Tonometer are compared, respectively, to predicate devices to show the equivalence. Description statements were relied on to ascertain the intended use and technological features of legally marketed devices, and the substantial equivalence to the TonoPach to such legally marketed devices. The comparison of the intended use and technological features of this device to other legally marketed devices indicates that this device is substantially equivalent to legally marketed predicate devices with regard to safety, effectiveness and intended use. Note: areas of difference between the two devices are indicated in the tables. RetinaPharma believes that these differences are minor and should not raise any concerns regarding the overall safety and efficacy of the TonoPach.
| Table 6.1: List of predicate devices | |||
|---|---|---|---|
| Predicate Device | Manufacturer | 510(k) | Date Cleared |
| Tonometer | |||
| TonoPen ophthalmic tonometer | Oculab, Inc. | K 852774 | August 20, 1985 |
| Pachymeter | |||
| Pocket Ultrasonic Pachymeter | |||
| Echoscan Model US-1800 | Quantel Medical, Inc. | ||
| Nidek, Inc. | K993674 | ||
| K020876 | July 13, 2000 | ||
| May 3, 2002 |
2
| Table 6.2: Comparison of Tonometer Characteristics | ||
|---|---|---|
| TonoPen vs. TonoPach P 201 | ||
| Predicate Device | ||
| Mentor TonoPen 3 | RetinaPharma | |
| TonoPach P 201 | ||
| Measurement | IOP | IOP |
| Pressure measurement device | Micro strain gauge | Micro strain gauge |
| Measurement technique | Applanation | Applanation |
| Pressure range | 5-80 mm Hg | 5-80 mm Hg |
| Pressure contact area* | 1.5 mm | 1.8 mm |
| Measurement frequency | 500 reading per second | 500 readings per second |
| Display/measure | LCD / 2 digit reading | LCD / 2 digit reading |
| Statistical storage | Yes | Yes |
| Pressure traceability | Manometer & Goldmann | Manometer & Goldmann |
| Usage | Handheld | Handheld or Slitlamp mounted |
| Power supply | Battery | Battery |
| System configuration* | Single unit; transducer and | |
| system electronics combined | Tethered unit; transducer is | |
| tethered from the system | ||
| electronics | ||
| Versatility | Can be used with the patient in | |
| any position, making it suitable | ||
| for use in the office, bedside or in | ||
| remote locations. Suitable for use | ||
| in cases of their regular or Hg | ||
| corneal astigmatism. | Can be used with the patient in | |
| any position, making it suitable | ||
| for use in the office, bedside or in | ||
| remote locations. Suitable for us | ||
| in cases of their regular or Hg | ||
| corneal astigmatism. | ||
| *Indicates differences between the predicate device and TonoPach |
| Table 6.3: Comparison of Pachymeter Characteristics
| "Pocket" Ultrasonic Pachymeter and Echoscan US-1800 vs. TonoPach P 201 | |||
|---|---|---|---|
| Predicate Device | |||
| "Pocket" | Predicate Device | ||
| Echoscan US-1800 | RetinaPharma | ||
| TonoPach P 201 | |||
| Measurement | Corneal thickness | Corneal thickness | Corneal thickness |
| Measurement system | Ultrasonic pulse | ||
| reflection | Ultrasonic pulse | ||
| reflection | Ultrasonic pulse | ||
| reflection | |||
| Probe type | Solid, | ||
| Angled | Solid, | ||
| Straight, Angled | Solid | ||
| Straight, Angled | |||
| Measurement range* | 100 to 1300 um | 200 to 1300 um | 125 to 1300 um |
| Clinical accuracy | +/- 5 um | +/- 5 um | +/- 5 um |
| Least significant display | |||
| digit | 1 um | 1 um | 1 um |
| Default velocity* | 1620 m/sec | 1640 m/sec, | |
| changeable | 1640 m/sec | ||
| Exam Mode(s) | Single point, 1 map | Single point, 3 maps | Single point, 1 map |
| Data Output | LCD, Print | LCD, Print | LCD, Print |
| Power requirements | Battery | 120 VAC, 60 Hz | Battery |
| Weight | 0.46 kg | 6 kg | 0.75 kg |
| *Pachymeter mode. Indicates difference between the predicate device and the TonoPach |
3
7 TonoPach Testing
Substantial testing has been performed using the TonoPach. It includes inanimate, animal and human evaluation.
- A Inanimate: Models for both tonometry and pachymetry have been used.
- l ) The tonometry model consists of a water-filled spherical membrane attached to a manometer. When the TonoPach handpiece tip touches the sphere, it mimics intraocular pressure.
-
- The pachymetry model consists of polycarbonate wafers of varying thicknesses. When the TonoPach handpiece tip touches a wet wafer, it is suitable to mimic the cornea for thickness measurement purposes.
- B Animal: Live rabbit eyes and freshly enucleated porcine eyes were used for several studies.
- l) Rabbit eyes were used to test the tonometer and pachymeter portions of the TonoPach. They were used to evaluate the TonoPach's performance on a live eye. Also, they were used to assist in evaluation of the System's numerical accuracy and reproducibility.
-
- Pig eyes were used predominately to verify and validate tonometer accuracy and reproducibility. One study was used to demonstrate repeatability. Three porcine eyes were studied at each 10 mmHg pressure over a pressure range of 5 to 80 mmHg with 10 independent measurements per pressure. The data exceeds product specifications.
- C Clinical Crial: The TonoPach was evaluated on eye clinic volunteers who required tonometery. All patients who agreed to volunteer were admitted to the study.
-
- Tonometry testing was the predominated the data collected. 347 eyes were tested for comparison to Goldmann tonometery. Scatter and Bland & Altman plots as well as mean, standard deviation and variance around the mean reveal that the TonoPach meets or exceeds specifications.
-
8 Statement of Confidentiality
Information contained in this letter and its attachments is considered confidential, proprietary information and a trade secret until RetinaPharma Technologies, Inc. distributes such information publicly. The release of information contained herein is to be governed by applicable provisions of the Food, Drug and Cosmetic Act, the Freedom of Information Act and pertinent FDA regulations in 21 CFR Part 20.
4
Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health and 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 an abstract symbol resembling a stylized caduceus or a bird in flight, composed of three curved lines.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
DEC 1 0 2004
RetinaPharma Technologies, Inc. % Terry Fuller, Ph.D. 944 Morgan Road Jenkintown, PA 19046
Re: K042099
Trade/Device Name: TonoPach Ultrasonic Tonometer/Pachymeter Model P-201 Regulation Number: 21 CFR 886.1930 Regulation Name: Tonometer and accessories Regulatory Class: Class II Product Code: HKX Dated: July 30, 2004 Received: August 4, 2004
Dear Dr. Fuller:
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.
5
Page 2 - Terry Fuller
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 (301) 594-4613. 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/dsma/dsmamain.html
Sincerely yours,
A halyl Rosenthal
A. Ralph Rosenthal, M.D. Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
6
3) Diagnostic Ultrasound Indications for Use Form
Page 1 of 1
510(k) Number (if known):
Device name: RetinaPharma Model P 201, TonoPachTM System
Intended Use: The TonoPach Ultrasonic TonometerPachymeter Model P-201 is a diagnostic instrument that is intended for use in the measurement of both intraccular pressure and corneal thickness. It is intended for use during or following surgery and as a screening, monitoring or diagnostic aid in patients with normal, disease-induced or surgically altered anatomy, or in glaucoma suspects under current therapeutic guidelines.
| Clinical Application | Mode of Operation | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A | B | M | PWD | CWD | Color | |||||
| Doppler | Amplitude | |||||||||
| Doppler | Color | |||||||||
| Velocity | ||||||||||
| Imaging | Combined | |||||||||
| (specify) | Other | |||||||||
| (specify) | ||||||||||
| Ophthalmic | N | |||||||||
| Fetal | ||||||||||
| Abdominal | ||||||||||
| Intraoperative (specify) | ||||||||||
| Intraoperative | ||||||||||
| Neurological | ||||||||||
| Pediatric | ||||||||||
| Small Organ (specify) | ||||||||||
| Neonatal Cephalic | ||||||||||
| Adult Cephalic | ||||||||||
| Cardiac | ||||||||||
| Transesophageal | ||||||||||
| Transrectal | ||||||||||
| Transvaginal | ||||||||||
| Transurethral | ||||||||||
| Intravascular | ||||||||||
| Peripheral Vascular | ||||||||||
| Laparoscopic | ||||||||||
| Musculo-skeletal | ||||||||||
| Conventional | ||||||||||
| Musculo-skeletal | ||||||||||
| Superficial | ||||||||||
| Other (specify)* |
N= new indication; P= previously cleared by FDA; E= added under Appendix E
Additional Comments:
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| Prescription Use | (Per 21 CFR 801.109) |
|---|---|
| ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Clay R. Butterman | |
|---|---|
| (Division Sign-Off) | |
| Division of Ophthalmic Ear, | |
| Nose and Throat Devises |
510(k) TonoPach Indications for Use modified 041210.doc
From 510(k) 040729_Cover D.doc
| 510(k) Number | K042099 |
|---|---|
| --------------- | --------- |