The Cassi Rotational Core Biopsy Device is indicated for use in obtaining biopsies from soft tissues such as liver, kidney, prostate, spleen, lymph nodes, and various soft tissue tumors. It is not intended for use in bone.

The Cassi Device is also indicated to provide breast tissue sampling of breast abnormalities. It is designed to provide breast tissue for histological examination with partial or complete removal of the imaged abnormality. The extent of a histological abnormality cannot be reliably determined from its mammographic appearance. Therefore, the extent of removal of the imaged evidence of an abnormality does not predict the extent of removal of a histological abnormality (e.g. malignancy). When the sampled abnormality is not histologically benign, it is essential that the tissue margins be examined for completeness of removal using standard surgical procedures.

Device Description

The proposed CASSI II Rotational Core Biopsy System consists of the following primary components: a fully integrated CASSI biopsy handle, a valve block, battery, cryogen, a Cassi biopsy needle (CASSI biopsy needle comprised of a sticking needle and cutting cannula/piston assembly), and a sample collection tray. The sticking needle is operated by CASSI biopsy handle and uses cold temperatures at its tip to engage the tissue to be sampled. The cutting cannula is coaxially mounted around the sticking needle and is used to core the tissue specimen. The cutting cannula is available in two sizes (10 and 12 gauge).

The proposed CASSI biopsy handle are minor design evolution of the predicate CASSI II biopsy handle. The proposed CASSI II biopsy needle unit assembly remains unchanged from the predicate CASSI II biopsy needle unit assembly.

The proposed CASSI II system uses one control unit handle and allows for multiple, single patient use, biopsy needle units to operate with the handle, in the very same manner as the predicate CASSI II device. The principles of operation for the proposed CASSI™ II Rotational Core Biopsy System and the predicate CASSI II system remain unchanged.

AI/ML Overview

The provided text is a 510(k) summary for the CASSI™ II Rotational Core Biopsy System, which focuses on changes to manufacturing and minor design evolutions rather than a study demonstrating clinical performance against acceptance criteria. Therefore, I cannot extract information related to clinical studies from this document.

However, based on the information provided, I can infer the following about the device's technical specifications and aspects addressed in the submission:

1. A table of acceptance criteria and the reported device performance:

Since this submission is for manufacturing and minor design changes, it does not present a table of clinical acceptance criteria and device performance in that context. The "performance" discussed relates to maintaining equivalence to the predicate device.

Acceptance Criteria (Implied)	Reported Device Performance
Sterilization Assurance Level	Remained at 10⁻⁶ (exactly the same as predicate)
Shelf Life of Disposable Biopsy Needle Unit	Extended from 1 year to 3 years
Valve Body Strength (Thermal Shock Resistance)	Enhanced by adding JB weld adhesive to mitigate crack risk
PCBA Protection	Added PCBA coating to mitigate moisture/chemical contamination and protect against ESD
Principles of Operation	Remained unchanged from predicate device
Intended Use/Indications for Use	Remained unchanged from predicate device

2. Sample size used for the test set and the data provenance (e.g., country of origin of the data, retrospective or prospective):

Not applicable to this 510(k) submission. This document describes manufacturing and minor design changes, not a clinical test set.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g., radiologist with 10 years of experience):

Not applicable to this 510(k) submission. No clinical test set requiring expert ground truth establishment is described.

4. Adjudication method (e.g., 2+1, 3+1, none) for the test set:

Not applicable to this 510(k) submission. No clinical test set is described.

5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:

Not applicable to this 510(k) submission. This device is a biopsy system, not an AI-assisted diagnostic tool.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:

Not applicable to this 510(k) submission. This device is a biopsy system, not an algorithm.

7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):

Not applicable to this 510(k) submission. The document focuses on demonstrating that design and manufacturing changes do not alter fundamental performance or safety, rather than evaluating clinical accuracy against a ground truth.

8. The sample size for the training set:

Not applicable to this 510(k) submission. This device is not an AI/machine learning system.

9. How the ground truth for the training set was established:

Not applicable to this 510(k) submission. This device is not an AI/machine learning system.

In summary, this 510(k) submission (K161234) for the CASSI™ II Rotational Core Biopsy System focuses on demonstrating substantial equivalence to a previously cleared predicate device (K123606) following changes in contract manufacturers, sterilizer, and minor design evolutions to the biopsy handle, rather than presenting a clinical study and acceptance criteria for its diagnostic performance. The document confirms that the device's intended use and principles of operation remain unchanged and that the modifications do not raise new questions of safety or efficacy.

Summary

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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the circumference. Inside the circle is a stylized symbol featuring three overlapping profiles facing upwards and to the right, representing the department's focus on people and health.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002

August 3, 2016

Scion Medical Technologies, LLC Louis Li QA/RA Manager 4613 West Chester Pike Newton Square, PA 19073

Re: K161234

Trade/Device Name: CASSI II Rotational Core Biopsy System Regulation Number: 21 CFR§ 876.1075 Regulation Name: Gastroenterology-Urology Biopsy Instrument Regulatory Class: II Product Code: KNW Dated: June 29, 2016 Received: July 5, 2016

Dear Louis Li:

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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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); medical device reporting (reporting of

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medical device-related adverse events) (21 CFR 803); 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.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to

http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely yours.

Joyce M. Whang -S

for

Benjamin R. Fisher, Ph.D. Director Division of Reproductive, Gastro-Renal, and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration

Indications for Use

Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below.

510(k) Number (if known)

K161234

Device Name

CASSI II Rotational Core Biopsy System

Indications for Use (Describe)

Type of Use (Select one or both, as applicable)

Prescription Use (Part 21 CFR 801 Subpart D)

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

CONTINUE ON A SEPARATE PAGE IF NEEDED.

This section applies only to requirements of the Paperwork Reduction Act of 1995.

DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.

The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:

Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov

"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."

FORM FDA 3881 (8/14)

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Special 510(k) Summarv as required by 21 CFR 807.92(a)

A) Submitted by:	Scion Medical Technologies, LLC4613 West Chester PikeNewtown Square, Pennsylvania 19073USA
Official Contact:	Louis Li QA/RA ManagerTelephone: (610)533-3577Fax: (484)428-3187E-mail: louisli@scionmedtech.com
B) Proprietary Name:	CASSI™ II Rotational Core Biopsy System
Common Name:	Gastroenterology-urology biopsy instrument
Device Class:Regulation and	Class II, 21 CFR 876.1075
Classification name:	Instrument, Biopsy
Product code:	KNW
Classification panel: Gastroenterology-urology
C) Predicate: CASSI™ II Rotational Core Biopsy System, with theCASSI QuadPoint™ Disposable K123606 Cleared on March 1st, 2017
D) Date Prepared:	April 28, 2016

E) Device Description

The proposed CASSI II system uses one control unit handle and allows for multiple, single patient use, biopsy needle units to operate with the handle (See Figure 1, below), in the very same manner as the predicate CASSI II device. The principles of operation

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for the proposed CASSI™ II Rotational Core Biopsy System and the predicate CASSI II system remain unchanged.

Image /page/4/Figure/1 description: The image shows a disassembled electronic thermometer. The thermometer consists of two main parts: a probe and a handheld unit. The probe is long and slender, with a pointed tip for insertion into food. The handheld unit has a digital display and buttons for operation. The two parts are designed to be connected together for use.

Figure 1: Proposed CASSI™ II Rotational Core Biopsy System and predicate CASSI II Rotational Core Biopsy System – reusable handle and disposable biopsy needle unit assembly.

This submission is for changing contract manufacturer from Sanarus Technologies (Address:7068 Koll Center Parkway,Suite 425, Pleasanton, CA 94566 U.S.A.) to Scion Technologies Jiangsu Ltd (Address: Building G32,China Medical City,Taizhou,Jiangsu P.R.China, 225300) and sterilizer from Sterigenics (Address: 2311 Lincoln Ave. Hayward, CA 94545 U.S.A.) to Shanghai JPY TECH. CO.,LTD (Address:No 1168, Huijin Rd. Shanghai Qingpu Industrial Zone. Shanghai P.R.China 201707), but the sterilization method and sterility assurance level of 10-6 remain exactly same.

Scion Medical Technologies. LLC moved the office from 90 Oak Street Newton. MA 02464 U.S.A to 4613 West Chester Pike Newtown Square, Pennsylvania 19073 USA

Additionally, minor design evolutions of the predicate CASSI II biopsy handle are as follows:

1. Added PCBA coating. The purpose is to mitigate the possibility of moisture or chemical contaminating the components of the board and protect the component of the board (e.g. ESD).
1. Add JB weld adhesive to the valve body (See Figure 2). The purpose is to enhance the valve body strength and mitigate the risk of valve crack caused by thermal shock.
1. Changed the shelf life of CASSI QuadPoint disposable biopsy needle unit from 1 year to 3 years.

Figure 2: Proposed CASSI II Rotational Core Biopsy System and the predicate CASSI II device system configuration.

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Image /page/5/Figure/0 description: This image is a technical drawing of a biopsy device. The drawing shows the different components of the device, including the biopsy needle unit, canister, canister cap, battery, timer circuit board, valve block, and biopsy needle unit receptacle. The drawing is labeled with the names of the components.

F) Intended Use/Indications For Use:

The Indications for Use, of the proposed CASSI II Rotational Core Biopsy System remain unchanged from the cleared CASSI II Rotational Core Biopsy System predicate device (K123606).

The Cassi Rotational Core Biopsy System is indicated for use in obtaining biopsies from soft tissues such as liver, kidney, prostate, spleen, lymph nodes, and various soft tissue tumors. It is not intended for use in bone.

The Cassi Rotational Core Biopsy System is also indicated to provide breast tissue samples for diagnostic sampling of breast abnormalities. It is designed to provide breast tissue for histological examination with partial or complete removal of the imaged abnormality. The extent of a histological abnormality cannot be reliably determined from its mammographic appearance. Therefore, the extent of removal of the imaged evidence of an abnormality does not predict the extent of removal of a histological abnormality (e.g., malignancy).

When the sampled abnormality is not histologically benign, it is essential that the tissue margins be examined for completeness of removal using standard surgical procedures.

G) Substantial Equivalence Comparison and Discussion

In summary, Scion Medical Technologies, LLC believes that the proposed changes, as described in this submission, do not raise any new or significant questions of safety and efficacy and is substantially equivalent to the predicate Scion Medical Technologies, LLC CASSI II Rotational Core Biopsy System cleared on March 1st, 2013 (K123606)

H) Compliance with Design Controls

The results of assessment of the change to the CASSI™ II Rotational Core Biopsy System, conducted under Design Controls, support that the new offering is substantially equivalent to the predicate device delivery system.

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Compliance with Standards:

ISO 15223-1:2012, Medical devices - Symbols to be used with medical device labels, labeling and information to be supplied - Part 1: General requirements

ISO 14971: 2007, Medical devices - Application of risk management to medical devices

EN 1041:2008 Information supplied by the manufacture of medical devices

ISO11137-1:2006 Sterilization of health care products —Radiation —Part 1: Requirements for development, validation and routine control of a sterilization process for medical devices

Regulation Number and Section

§ 876.1075 Gastroenterology-urology biopsy instrument.

(a)
Identification. A gastroenterology-urology biopsy instrument is a device used to remove, by cutting or aspiration, a specimen of tissue for microscopic examination. This generic type of device includes the biopsy punch, gastrointestinal mechanical biopsy instrument, suction biopsy instrument, gastro-urology biopsy needle and needle set, and nonelectric biopsy forceps. This section does not apply to biopsy instruments that have specialized uses in other medical specialty areas and that are covered by classification regulations in other parts of the device classification regulations.(b)
Classification. (1) Class II (performance standards).(2) Class I for the biopsy forceps cover and the non-electric biopsy forceps. The devices subject to this paragraph (b)(2) are exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.