K Number
K964336
Device Name
CMS ACCUPROBE 610, 620, 630, 640, 650, 660, 670, 680
Date Cleared
1997-03-20

(140 days)

Product Code
Regulation Number
878.4350
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The device is used to destroy unwanted tissue by application of extreme cold to the selected site.
Device Description
The CMS AccuProbe® 600 series consists of two components including: i) a console which holds three dewars of liguid nitrogen (LN-) (one dewar is filled at a time; one dewar is a receptacle for the circulating LN, and the third dewar contains the supercooling chamber); and ii) one to eight (models 610 through 680) cryoprobes with tips extending from the console. The console includes an optional on-board computer which is used as a redundant display system and an archival system to store information from the procedure. The computer does not control or affect the operation of the cryoprobes in any fashion. The cryoprobes consist of interchangeable tips of various materials, sizes and shapes to be utilized as necessary.
More Information

Not Found

No
The description explicitly states that the optional on-board computer "does not control or affect the operation of the cryoprobes in any fashion," indicating no AI/ML control or influence on the core function.

Yes
The device is used to destroy unwanted tissue, which is a direct therapeutic action on the body.

No

The device is used to destroy unwanted tissue by application of extreme cold, which is a therapeutic function rather than a diagnostic one.

No

The device description clearly outlines hardware components including a console, dewars, and cryoprobes, indicating it is not a software-only medical device. The optional computer is described as a redundant display and archival system, not the primary functional component.

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

Here's why:

  • Intended Use: The intended use is to "destroy unwanted tissue by application of extreme cold to the selected site." This describes a therapeutic procedure performed directly on a patient's body, not a test performed on a sample taken from the body to diagnose a condition.
  • Device Description: The device description details a cryosurgical system with a console and cryoprobes. This is consistent with a device used for direct tissue treatment, not for analyzing biological samples.
  • Lack of IVD Characteristics: There is no mention of analyzing biological samples (blood, urine, tissue samples, etc.), reagents, or any other components typically associated with in vitro diagnostics.

In summary, the device's function and description clearly indicate it is a therapeutic device used for cryosurgery, not an in vitro diagnostic device.

N/A

Intended Use / Indications for Use

The device is used to destroy unwanted tissue by application of extreme cold to the selected site. LN, is forced through the cryoprobes under pressure. The cryoprobe, having been placed in the appropriate position through the use of ultrasound or another imaging device, then becomes cold and freezes the unwanted tissue. The procedure may be monitored in real-time through the use of imaging modes such as ultrasound. Once the freezing is completed (approximately 20 minutes) the probe will be heated using warm nitrogen gas in order to facilitate thawing and removal of the cryoprobe from the frozen tissue. The cryosurgical procedure is available when surgical resection is not possible and may also provide an alternative to typical resection in certain cases.

Product codes

Not Found

Device Description

The CMS AccuProbe® 600 series consists of two components including: i) a console which holds three dewars of liguid nitrogen (LN-) (one dewar is filled at a time; one dewar is a receptacle for the circulating LN, and the third dewar contains the supercooling chamber); and ii) one to eight (models 610 through 680) cryoprobes with tips extending from the console. The console includes an optional on-board computer which is used as a redundant display system and an archival system to store information from the procedure. The computer does not control or affect the operation of the cryoprobes in any fashion. The cryoprobes consist of interchangeable tips of various materials, sizes and shapes to be utilized as necessary.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

ultrasound

Anatomical Site

unwanted tissue; selected site

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)

Not Found

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.

K953637

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.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 878.4350 Cryosurgical unit and accessories.

(a)
Identification —(1)Cryosurgical unit with a liquid nitrogen cooled cryoprobe and accessories. A cryosurgical unit with a liquid nitrogen cooled cryoprobe and accessories is a device intended to destroy tissue during surgical procedures by applying extreme cold.(2)
Cryosurgical unit with a nitrous oxide cooled cryoprobe and accessories. A cryosurgical unit with a nitrous oxide cooled cryoprobe and accessories is a device intended to destroy tissue during surgical procedures, including urological applications, by applying extreme cold.(3)
Cryosurgical unit with a carbon dioxide cooled cryoprobe or a carbon dioxide dry ice applicator and accessories. A cryosurgical unit with a carbon dioxide cooled cryoprobe or a carbon dioxide dry ice applicator and accessories is a device intended to destroy tissue during surgical procedures by applying extreme cold. The device is intended to treat disease conditions such as tumors, skin cancers, acne scars, or hemangiomas (benign tumors consisting of newly formed blood vessels) and various benign or malignant gynecological conditions affecting vulvar, vaginal, or cervical tissue. The device is not intended for urological applications.(b)
Classification. Class II.

0

K964336

October 31, 1996

Submitted by:

MAR 2 0 1997

Contact:

Cryomedical Sciences, Inc. 1300 Piccard Drive Rockville, Maryland 20850 (301) 417-7070 Fax (310) 417-7077

Richard J. Reinhart, Ph.D. President and CEO or Susan Hayes Administrative Manager Operations

Proprietary name: CMS AccuProbe® 610, 620, 630, 640, 650, 660, 670, 680

Cryosurgical Unit, Cryogenic Surgical Device or Cryoprobe Common name:

Classification:

Cryosurgical unit with Liquid Nitrogen, Class II [21 CFR § 878.4350(a)]

The CMS AccuProbe® 600 series consists of two components including: i) a console which holds three dewars of liguid nitrogen (LN-) (one dewar is filled at a time; one dewar is a receptacle for the circulating LN, and the third dewar contains the supercooling chamber); and ii) one to eight (models 610 through 680) cryoprobes with tips extending from the console. The console includes an optional on-board computer which is used as a redundant display system and an archival system to store information from the procedure. The computer does not control or affect the operation of the cryoprobes in any fashion. The cryoprobes consist of interchangeable tips of various materials, sizes and shapes to be utilized as necessary.

The device is used to destroy unwanted tissue by application of extreme cold to the selected site. LN, is forced through the cryoprobes under pressure. The cryoprobe, having been placed in the appropriate position through the use of ultrasound or another imaging device, then becomes cold and freezes the unwanted tissue. The procedure may be monitored in real-time through the use of imaging modes such as ultrasound. Once the freezing is completed (approximately 20 minutes) the probe will be heated using warm nitrogen gas in order to facilitate thawing and removal of the cryoprobe from the frozen tissue. The cryosurgical procedure is available when surgical resection is not possible and may also provide an alternative to typical resection in certain cases.

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1

The CMS AccuProbe® 600 series is similar in form and function to the 550/530 AccuProbe®, being modified models of that device. The CMS AccuProbe® 550/530 was cleared for marketing in November 20, 1995. The intended use and principal of operation are the same.

COMPARISON OF FEATURES BETWEEN THE AccuProbe® 550/530 [CLEARED 510(k) (K953637)] AND THE AccuProbe® 600 SERIES

FEATURESAccuProbe® 550/530AccuProbe® 600 SERIES
Liquid Nitrogen
Capacity
(Dewar size)85 litersModel 610 15 liters
Model 620 25 liters
Model 630 40 liters
Model 640 55 liters
Model 650 70 liters
Model 660 85 liters
Model 670 100 liters
Model 680 115 liters
Normal Operating
Pressure55psi65psi
Regen timefour minutestwo minutes
Regen modeTransfers the LN2 from the
upper dewar to the lower
(supply) dewarDepressurizes the supply
dewar and pressurizes the
return dewar (this allows the
capture of LN2 to flow from
the return dewar through the
cryoprobe back to the supply
dewar)
Dimensions54"x 29"x 47"Model 610 45"x 24"x 29"
Model 620 49"x 24"x 29"
Model 630 52"x 24"x 29"
Model 640 52"x 24"x 29"
Model 650 54"x 28"x 32"
Model 660 54"x 30"x 34"
Model 670 54"x 32"x 34"
Model 680 54"x 32"x 34"
Nitrogen Gas SupplyExternal SupplyInternally Generated