MEDVISION PERSONAL MONITOR

K961343 · Medvision, Inc. · GCJ · Mar 13, 1997 · Gastroenterology, Urology

Device Facts

Record IDK961343
Device NameMEDVISION PERSONAL MONITOR
ApplicantMedvision, Inc.
Product CodeGCJ · Gastroenterology, Urology
Decision DateMar 13, 1997
DecisionSESE
Submission TypeTraditional
Regulation21 CFR 876.1500
Device ClassClass 2

Indications for Use

The MedVision Personal Monitor Models A and Models B are intended to display video image while mounted on the user's head.

Device Story

Device is a head-mounted display (HMD) for endoscopic surgery; inputs standard video signals from endoscopic camera systems; controller unit demodulates signals and drives display electronics; projects high-resolution color video image onto surgeon's retina via lens/mirror system; monoscopic binocular viewing; see-around design allows peripheral vision; used in surgical settings by surgeons; maintains endoscopic image in line of sight regardless of head orientation; improves hand-eye coordination by reducing decoupling between instrument movement and visual display; benefits include enhanced surgeon focus and reduced cognitive load during complex endoscopic manipulations.

Clinical Evidence

No clinical data. Bench testing only; device complies with IEC-601-1, IEC-601-2, and IEC 10004-3 standards.

Technological Characteristics

Monoscopic binocular HMD; Model A uses TFT LCD; Model B uses AMEL display; includes monitor block, eyeglasses with polycarbonate lenses, and controller box; lens/mirror projection system; 9V DC power; non-sterile; connectivity via standard video input; shielded cable transmission.

Indications for Use

Indicated for surgeons performing endoscopic procedures to display video images within the user's line of sight.

Regulatory Classification

Identification

An endoscope and accessories is a device used to provide access, illumination, and allow observation or manipulation of body cavities, hollow organs, and canals. The device consists of various rigid or flexible instruments that are inserted into body spaces and may include an optical system for conveying an image to the user's eye and their accessories may assist in gaining access or increase the versatility and augment the capabilities of the devices. Examples of devices that are within this generic type of device include cleaning accessories for endoscopes, photographic accessories for endoscopes, nonpowered anoscopes, binolcular attachments for endoscopes, pocket battery boxes, flexible or rigid choledochoscopes, colonoscopes, diagnostic cystoscopes, cystourethroscopes, enteroscopes, esophagogastroduodenoscopes, rigid esophagoscopes, fiberoptic illuminators for endoscopes, incandescent endoscope lamps, biliary pancreatoscopes, proctoscopes, resectoscopes, nephroscopes, sigmoidoscopes, ureteroscopes, urethroscopes, endomagnetic retrievers, cytology brushes for endoscopes, and lubricating jelly for transurethral surgical instruments. This section does not apply to endoscopes that have specialized uses in other medical specialty areas and that are covered by classification regulations in other parts of the device classification regulations.

Special Controls

*Classification* —(1)*Class II (special controls).* The device, when it is an endoscope disinfectant basin, which consists solely of a container that holds disinfectant and endoscopes and accessories; an endoscopic magnetic retriever intended for single use; sterile scissors for cystoscope intended for single use; a disposable, non-powered endoscopic grasping/cutting instrument intended for single use; a diagnostic incandescent light source; a fiberoptic photographic light source; a routine fiberoptic light source; an endoscopic sponge carrier; a xenon arc endoscope light source; an endoscope transformer; an LED light source; or a gastroenterology-urology endoscopic guidewire, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.(2) Class I for the photographic accessories for endoscope, miscellaneous bulb adapter for endoscope, binocular attachment for endoscope, eyepiece attachment for prescription lens, teaching attachment, inflation bulb, measuring device for panendoscope, photographic equipment for physiologic function monitor, special lens instrument for endoscope, smoke removal tube, rechargeable battery box, pocket battery box, bite block for endoscope, and cleaning brush for endoscope. The devices subject to this paragraph (b)(2) are exempt from the premarket notification procedures in subpart E of part 807of this chapter, subject to the limitations in § 876.9.

In combination with the general controls of the FD&C Act, the integrated operating table-electromechanical surgical system is subject to the following special controls: 1. (1) Premarket clinical performance testing, or a combination of premarket clinical performance testing and postmarket surveillance (in accordance with special control (2)), must include the following: 1. (i) Objective performance measures (e.g., rate and number of conversions to other surgical modalities, rate of device related adverse events (including tissue injury, hematoma, and increased blood loss), and their severity, cause, and outcomes) must be reported with relevant descriptive comparator performance measures. 2. (ii) The data must demonstrate the performance of the device for providing accurate and precise control of attached surgical instruments in range of clinical conditions relevant to the device's intended use. 3. (iii) The test dataset must include data collected from a patient population representative of the intended patient population under anticipated conditions of use. 2. (2) Data obtained from postmarket surveillance must demonstrate, in consideration of the premarket data obtained in accordance with special control (1), that the device performs in accordance with special control (1), unless FDA determines, based on the totality of the premarket data, that data from postmarket surveillance is not required to demonstrate that the device performs as intended. Such postmarket surveillance must be conducted per a protocol determined appropriate by FDA to demonstrate that the device performs as intended (in consideration of the premarket data obtained in accordance with special control (1)), and must include initiation, enrollment, and reporting requirements to ensure timely periodic updates to FDA on post-market surveillance progress and outcomes. 3. (3) Animal performance testing must evaluate the extent of port site trauma due to repositioning of table during surgical procedures when utilizing robotic minimally invasive and laparoscopic approaches 4. (4) The device manufacturer must develop, and update as necessary, a device-specific use training program that ensures proper device setup/use/shutdown, accurate control of instruments to perform the intended surgical procedures, troubleshooting and handling during unexpected events or emergencies, and safe practices to mitigate use error. 5. (5) The device manufacturer may only distribute the device to facilities that implement and maintain the device-specific use training program and ensure that users of the device have completed the device-specific use training program. (6) Human factors assessment must demonstrate that the user can correctly use the device system across all intended use environments with the provided instructions and training materials, including patient access during normal operating conditions and emergency situations, and effects arising from the integrated nature of the operating table and robotic surgical arms. (7) Labeling must include: (i) A detailed summary of clinical performance testing conducted with the device, including study population, results, adverse events, and comparisons to any comparator groups identified; (ii) A statement in the labeling that the safety and effectiveness for the representative specific procedures was based on evaluation of the device as a surgical tool and did not include evaluation of outcomes related to the treatment of the patient's underlying disease or condition, unless FDA determines that it can be removed or modified based on clinical performance data submitted to FDA; (iii) Identification of compatible devices; (iv) The list of surgical procedures for which the device has been determined to be safe with clinical justification; (v) Reprocessing instructions for reusable components; (vi) A shelf life for any sterile components; (vii) A description of the device-specific use training program; (viii) A statement that the device is only for distribution to facilities that implement and maintain the device-specific use training program and ensure that users of the device have completed the device-specific use training program; and (ix) A summary of any completed postmarket surveillance data collected as required by special control (2), including updated labeling to accurately reflect outcomes observed in postmarket surveillance. (8) Non-clinical performance testing must demonstrate that the device performs as intended under anticipated conditions of use and must include: (i) Device motion accuracy and repeatability; (ii) System testing; (iii) Instrument reliability; (iv) Crosstalk; (v) Table motion control; (vi) Thermal effects on tissue; (vii) User-device interface performance; (viii) Workspace access testing; and (ix) Performance testing with compatible devices. (9) Software verification, validation, and hazard analysis must be performed. (10) Electromagnetic compatibility and electrical, thermal, and mechanical safety testing must be performed. (11) Performance data must demonstrate the sterility of all patient-contacting device components. (12) Performance data must support the shelf life of the device components provided sterile by demonstrating continued sterility and package integrity over the labeled shelf life. (13) Performance data must validate the reprocessing instructions for the reusable components of the device. (14) Performance data must demonstrate that all patient-contacting components of the device are biocompatible. (15) Performance data must demonstrate that all patient-contacting components of the device are non-pyrogenic. (16) The device manufacturer must submit a report to the FDA annually on the anniversary of initial marketing authorization for the device, until such time as FDA may terminate such reporting, which comprises the following information: (i) Cumulative summary, by year, of complaints and adverse events since date of initial marketing authorization; and (ii) Identification and rationale for changes made to the device, labeling, or device specific use training program, which did not require submission of a premarket notification during the reporting period.

Predicate Devices

Submission Summary (Full Text)

{0} MedVision Inc. North Brunswick, NJ February 1, 1997 MAR 13 1997 K961343 # Section 2 ## 510 (k) Summary **Device Trade Name** MedVision Personal Monitor Models A and B **Common /Usual Name** Head Mounted Display Virtual Display Device **Classification Name** Accessory to Endoscopes **Contact Person:** Miklos S. Ruschak MedVision Inc. 257 Kempsey Drive North Brunswick, NJ 08902 Telephone: (908) 297-8306 Fax: (908) 422-7745 **Predicate Device** Trade Name: Head Mounted Display Manufacturer: Vista medical Technologies 5451 Avenida Encinas, Suite A Carlsbad, CA 92008 510 (k)#: K961800 Summary Preparation Date: February 1, 1997 **Statement of Intended Use** The MedVision Personal Monitor Models A and Models B are intended to display video image while mounted on the user's head. **Device Description** In endoscopic procedures the conventional video monitors are placed away from the site of the operation. As a result, the surgeon has to constantly divide his/her attention between the conventional monitor that shows the endoscopic image and the site of the operation. The remote location of the monitor and its orientation in the surgical setting have an effect on both the doctor's perception of the surgical field, and the difficulties encountered when interacting with it. Much of the difficulty encountered by a surgeon when learning the techniques videoendoscopy, relate to the disconnection between instrument movements on the video monitor and their hand movements. With the displacement and axial rotation of the monitor, the doctor must relearn the image to tissue relationship at each procedure, and with each manipulation of the camera. With {1} MedVision Inc. North Brunswick, NJ this decoupled image, the hand-eye coordination of the doctor suffers. For example, with a 90 degree rotation of the camera, an intended movement South North direction, will result in a display movement in an East to West direction, presenting the doctor with a working field that is difficult to comprehend. The MedVision Personal Monitors project a high resolution color video image that appears in a the surgeon's line of sight in a viewing angle comparable to watching a 26" television from 2 meters (6.5 feet) away. The video image is see-around; it blocks only the area the image appears, otherwise users are free to view the surrounding environment. The MedVision Personal Monitors provide an added convenience to surgeons compared to conventional monitors. They enables the surgeon to maintain the endoscopic image in the surgeon's line of site regardless of where he/she is looking. The MedVision Personal Monitor Model A and Model B can receive video signals from any video source. The signals are converted in the controller unit into signals the driving electronics of LCD/AMEL displays require. The MedVision Personal Monitors (MPM) Model A and Model B are monoscopic binocular displays with a relatively narrow field of view. The MPMs take standard video signals and display them on a small TFT LCD display (Model A) or AMEL display (Model B) that can be connected to any standard video source. The MPM consists of a monitor block, eyeglasses and controller box. The monitor block contains the display, for MPM Model A only, a backlight and its driver for the LCD, and a system of lenses and mirrors that project the display image onto the retina of the eyes. The light beams coming from the display are reflected in two directions by dividing mirrors placed in front of the display. The monitor block has a mounting slot that fits into the vertical nose piece of the eyeglasses. The controller box contains the video input demodulator unit and the driving electronics of the LCD/AMEL display. The LCD/AMEL direct display control signals are sent through a flexible shielded cable to the displays. The eyeglasses have adjustable temple pieces and each unit comes with a commercially available 9V DC adaptor with low EMI. All components and accessories of the device are marketed as non-sterile. ## Device Comparison The MedVision Personal monitor Models A and B are substantially equivalent to the display component of Vista Medical Technologies' Head Mounted Display, which received clearance from FDA on September 11, 1996 (K 961800). The MedVision Personal Monitor Model A and Model B are binocular monoscopic displays with a single LCD display (Model A) and single AMEL display (Model B). The Vista Medical Technologies' Head Mounted Display has two AMLCDs and it is a monoscopic/stereoscopic display. While the predicate device has large field of view and low apparent resolution, the MedVision Personal Monitors have relatively narrow field of view and relatively higher and apparent resolution. The MedVision Personal Monitors are monoscopic displays that do not need the large virtual distance, large field of view to create the stereoscopic immersion as opposed to Vista's HMD. The tradeoff for the large field of view is the reduction in apparent resolution. {2} MedVision Inc. North Brunswick, NJ # Safety The MedVision Personal Monitors Model A and Model B are designed, manufactured and tested in compliance with IEC-601-1, IEC-601-2, and IEC 10004-3. The eyeglasses will have polycarbonate lenses to ensure high resistance to impact and scratch. When compared to the predicate device the MedVision Personal Monitors Model A and Model B do not incorporate any significant change in intended use and technological characteristics that could affect the safety or effectiveness.
Innolitics

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