The Cytori AFT System is indicated for use when the fragmentation, emulsification, and aspiration of subcutaneous fatty tissues for aesthetic body contouring is desired.

Device Description

The Cytori AFT System is provided in two packaged assemblies: 1). Cytori AFT Tissue Collection Canister and 2). Cytori AFT Delivery Syringe. The Cytori AFT Tissue Collection Canister is a single-use disposable device designed to utilize house vacuum to create suction within the hollow liposuction cannula and remove subcutaneous fatty tissue from the patient and transport the adipose tissue into the collection canister. The Cytori AFT Delivery Syringe is a, sterile, single-use 60cc piston syringe.

AI/ML Overview

This document is a 510(k) premarket notification for the Cytori AFT System, which is a medical device. This type of submission focuses on demonstrating "substantial equivalence" to legally marketed predicate devices, rather than proving a device meets specific acceptance criteria through a clinical study with defined performance metrics, sample sizes, and ground truth methodologies.

Therefore, many of the requested details about acceptance criteria, study design, and ground truth establishment are not typically part of a 510(k) summary. These summaries primarily focus on comparing the new device's indications for use, technological characteristics, and safety/effectiveness principles to those of existing predicate devices.

Here's an attempt to address your questions based on the provided text, noting where the information is not available due to the nature of a 510(k) submission:

Acceptance Criteria and Device Performance

The concept of "acceptance criteria" as a set of quantified performance metrics met by the device in a dedicated study is not presented in this 510(k) summary. Instead, the "acceptance criteria" for a 510(k) submission are largely met by demonstrating substantial equivalence to predicate devices. The performance is assessed through this equivalence, particularly in terms of indications for use, design, materials, and safety/effectiveness.

The document states:

"Mechanical testing of the Cytori AFT System demonstrates that the device is substantially equivalent to the predicate devices."

This statement implies that the mechanical performance of the device was found to be comparable to established devices, thereby accepting its functionality. However, specific numerical benchmarks for device performance are not provided.

Therefore, a table of acceptance criteria and reported device performance cannot be fully constructed from the provided text in the way one might expect for a clinical trial outcome.

Acceptance Criteria (Implied by Substantial Equivalence)	Reported Device Performance (as stated or implied)
Functional Equivalence: Device performs the same intended functions (aspiration, harvesting, filtering, transferring autologous tissue) as legally marketed predicate devices.	The Cytori AFT System is designed for and intended for use in the aspiration, harvesting, filtering and transferring of autologous tissue, mirroring the function of predicate devices like Shippert Medical Tissu-Trans, MacroPore Puricel Lipoplasty System, Exel International Disposable Syringe, and Genesis Biosystems Lipivage.
Safety Equivalence: Device presents no new questions of safety or effectiveness compared to predicate devices. This includes material biocompatibility, sterility, and mechanical integrity.	Components in patient contact are surgical stainless steel. The device is sterilized by EtO gas, which is a common and accepted sterilization method. Mechanical testing confirmed substantial equivalence to predicate devices. There is no information suggesting new safety concerns compared to predicate devices.
Technological Characteristics Equivalence: Device shares similar design principles, materials, and operating mechanisms with predicate devices.	The Cytori AFT System's design (collection canister with filter, cannula, connection tubing, delivery syringe) and materials (polycarbonate, stainless steel, polypropylene, PVC) are stated to be substantially equivalent to the predicate devices. It uses house vacuum and manual operation, similar to the cited predicates. Key shared characteristics include the use of a polycarbonate tissue collection canister with flexible tubing, a stainless steel cannula, a filtering mechanism, and connection ports for suction and waste.
Intended Use Equivalence: The device has the same intended use as predicate devices.	The Cytori AFT System and the predicate devices "are substantially equivalent with respect to their indications for use, as they are all indicated for the same surgical procedures of aspirating, harvesting, filtering, and transferring autologous tissues." The specific surgical specialties are also listed as being covered.

Study Information (Based on 510(k) Submission)

Given that this is a 510(k) submission, the "study" referred to is generally a series of tests and analyses (e.g., mechanical, materials, sterilization validation) to support substantial equivalence, rather than a clinical effectiveness study with human participants for de novo approval.

Sample size used for the test set and the data provenance:
- No specific sample size for a "test set" (in the context of clinical data or image-based AI studies) is provided. The document mentions "Mechanical testing of the Cytori AFT System," but does not detail the sample sizes of devices or tests performed.
- Data Provenance: Not applicable in the context of clinical trial data. The data provenance would be from internal lab testing and comparisons to predicate device specifications/literature.
Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- Not applicable. "Ground truth" in the sense of expert consensus on diagnostic imaging or clinical outcomes is not a component of this type of submission. The performance is established through substantial equivalence based on engineering and material comparisons, as well as adherence to recognized standards for sterility and biocompatibility.
Adjudication method for the test set:
- Not applicable. No expert adjudication method is described as there isn't a clinical test set requiring ground truth establishment through human interpretation.
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:
- No, an MRMC comparative effectiveness study was not done. This type of study is relevant for diagnostic imaging AI devices, not for a suction lipoplasty system. The device does not involve "human readers" or "AI assistance" in its intended use.
If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- No, a standalone algorithm-only performance study was not done. The Cytori AFT System is a physical medical device, not an algorithm or AI software.
The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
- Not applicable for a 510(k) submission of this type. The "truth" in this context is adherence to engineering specifications, material properties, and functionality consistent with legally marketed predicate devices, as demonstrated by mechanical testing and other validations (e.g., sterilization).
The sample size for the training set:
- Not applicable. There is no training set for an AI algorithm mentioned or implied as this is a physical medical device.
How the ground truth for the training set was established:
- Not applicable for the same reason as above.

Summary

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ADMINISTRATIVE INFORMATION

Manufacturer Name:	Cytori Therapeutics, Inc.3020 Callan RoadSan Diego, CA 92121
Official Contact:	Kenneth K. KleinhenzSr. Director of Regulatory AffairsTelephone (858) 458-0900Fax (858) 458-0994

DEVICE NAME

Classification Name: Suction Lipoplasty System Trade/Proprietary Name: ﺑ Cytori AFT System

DEC 1 0 2007

ESTABLISHMENT REGISTRATION NUMBER 3002642958

DEVICE CLASSIFICATION AND PRODUCT CODE

As shown in 21 CFR 878.5040 Suction Lipoplasty Systems are defined as devices consisting of collection bottles, cannulas, and connecting tubing for use in aesthetic body contouring procedures. Suction Lipoplasty Systems are classified as Class II. They have been assigned Product Code MUU.

INTENDED USE

The Cytori AFT System is used in the aspiration, harvesting, filtering and transferring of autologous tissue.

The Cytori AFT System is intended for use in the following surgical specialties when the aspiration of soft tissue is desired:

· Neurosurgery
· Gastrointestinal and Affiliated Organ Surgery
· Urological Surgery
· Plastic and Reconstructive Surgery
· General Surgery
· Orthopedic Surgery
· Gynecological Surgery
· Thoracic Surgery
· Laparoscopic Surgery

The Cytori AFT System is indicated for use when the fragmentation, emulsification, and aspiration of subcutaneous fatty tissues for aesthetic body contouring is desired.

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DEVICE DESCRIPTION

Design Characteristics

AFT Tissue Collection Canister

The Cytori AFT Tissue Collection Canister is a sterile, single-use, manual device consisting of a cannula. connection tubing and a tissue collection container that relies on house vacuum for its energy supply. The cannula handle is attached to the tissue collection container via connection tubing. The cannula is a hollow tube with a single opening near the tip to communicate house vacuum to the tissues and subsequently aspirate, harvest and filter subcutaneous fatty tissues from the tissue collection container. The cannula tip is fabricated from medical grade stainless steel and the handle is fabricated from medical grade polypropylene. The connection tubing is fabricated from medical grade polyvinyl chloride (PVC) that is DEHP free. The Collection Canister is fabricated from medical grade polycarbonate to assure robustness in the operating room environment. The tissue collection container contains various capped/sealed luer ports and a 265 micron filter to entrap the tissue while allowing liquid to pass through to a hospital-provided collection trap.

The stainless steel cannula that contacts the patient is provided in various sizes ranging from 15 - 36 cm in length and 3.0 - 4.6 mm in diameter with a single opening near the tip of the cannula. The tip region of the cannula may have a single or multiple openings that range in size from 4 to 12 mm in length distributed uniformly or randomly throughout the end of the cannula. The device is provided with a diameter of 20 mm and may be provided in diameters ranging from 20 to 60 mm. The connecting tubing is provided with an inner diameter of 9.6 mm (3/8"), an outer diameter of 14.3 mm (9/16"), and a wall thickness of 2.2 mm. The tubing that connects the cannula handle to the tissue collection canister is provided in a length of 4 feet and may be provided in lengths ranging from 1 - 8 feet. The bottom of the tissue collection canister is also provided with the same 3/8" inner diameter connection tubing of various lengths. The proximal end of the exiting connection tubing may be provided with a barbed tubing connector to assist in the attachment of like-sized tubing for purposes of connecting the Cytori AFT System to house vacuum and/or assorted waste traps. Connection tubing leading to and from the tissue collection container is provided with a stepped clamp to facilitate manual control of the vacuum supplied to the cannula. The stepped clamps also allow the operator to seal the connection tubing on both sides of the Collection Canister and prevent spillage of the collected fluids/tissues, thereby facilitating safe transport and disposal of the waste materials.

AFT Delivery Syringe

The Cytori AFT Delivery Syringe is a polymeric 60cc volume luer-lock style sterile, single-use syringe consisting of a polypropylene barrel with printed graduations, a polypropylene plunger, and a polyisoprene latex free rubber stopper at the end of the plunger.

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Material Composition

The components of the Cytori AFT System that have direct patient contact are fabricated from surgical stainless steel.

Sterility

The Cytori AFT System is sterilized by ethylene oxide (EtO) gas.

In Vitro Testing

Mechanical testing of the Cytori AFT System demonstrates that the device is substantially equivalent to the predicate devices.

EQUIVALENCE TO MARKETED PRODUCT

The Cytori AFT System shares indications and design principles with the following predicate devices which have been determined by FDA to be substantially equivalent to premarket devices: Shippert Medical Tissu-Trans (K050797), MacroPore Puricel Lipoplasty System (K042261), Exel International Disposable Syringe (K861153) and Genesis Biosystems Lipivage (510(k) number unknown); Class I and II medical devices that were cleared for marketing in the United States under K050797, K042261, and K861153. respectively.

Indications for Use

The Cytori AFT System and the predicate devices are substantially equivalent with respect to their indications for use, as they are all indicated for the same surgical procedures of aspirating, harvesting, filtering, and transferring autologous tissues.

Design and Materials

The design and materials of the Cytori AFT System and the predicate devices [Shippert Medical Tissu-Trans (K050797), MacroPore Puricel Lipoplasty System (K042261), Exel International Disposable Syringe (K861153) and Genesis Biosystems Lipivage (510(k) number unknown)] are substantially equivalent, as they are all single-use, polymer constructed, manually operated systems that utilize manual or external sources of vacuum to withdraw, hold, and/or inject fluids/tissues into the body. The Cytori AFT System is substantially equivalent to the Tissu-Trans (K050797), Puricel Lipoplasty System (K042261), and the Lipivage predicate devices, as they all consist of a polycarbonate tissue collection canister with flexible tubing attached to a stainless steel cannula that contacts the patient. The Cytori AFT System is substantially equivalent to the Tissu-Trans (K050797), Puricel Lipoplasty System (K042261), and the Lipivage predicate devices, as they all share design principles of utilizing house-vacuum to aspirate adipose tissue from the patient and subsequently transport the adipose tissue through a tube into a cylindrical collection chamber that contains a filtering mechanism of pores to allow fluids to pass, but retains the adipose tissue within the chamber. The Cytori AFT System is substantially equivalent to the Tissu-Trans (K050797), Puricel Lipoplasty System (K042261), and the Lipivage predicate devices, as they all consist of a polymeric housing chamber with a filter unit within the chamber. The Cytori AFT System is substantially equivalent to the Tissu-Trans (K050797), Puricel Lipoplasty System (K042261), and the Lipivage predicate devices, as they all have connection ports on the superior ends of the housing chamber for the attachment of suction tubing/stainless steel cannulas that contact the patient and connection ports on the inferior end of the housing chamber to connect to vacuum tubing that draws house vacuum and carries waste to the waste trap. The Cytori AFT System is substantially equivalent to the Tissu-Trans (K050797) and the Lipivage predicate devices, as they are all equipped with a separately packaged plunger device to deliver the tissue back to the same patient.

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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized caduceus, which is a symbol often associated with healthcare. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the caduceus. The logo is black and white.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

DEC 1 0 2007

Cytori Therapeutics, Inc. % Mr. Kenneth K. Kleinhenz Sr. Director of Regulatory Affairs 3020 Callan Road San Diego, California 92121

Re: K072587

Trade/Device Name: Cytori AFT System Regulation Number: 21 CFR 878.5040 Regulation Name: Suction lipoplasty system Regulatory Class: II Product Code: MUU Dated: September 12, 2007 Received: September 14, 2007

Dear Mr. Keinhenz:

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.

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Page 2 - Mr. Kenneth K. Kleinhenz

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 Center for Devices and Radiological Health's (CDRH's) Office of Compliance at (240) 276-0115. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at (240) 276-3474. For questions regarding the reporting of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at (240) 276-3464. 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 (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.

Sincerely yours.

Mark H. Mulkeen

Mark N. Melkerson Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number: K072587

Device Name: Cytori AFT System

Indications for Use:

Cytori AFT System is used in the aspiration, harvesting, filtering and transfering of autologous tissue.

The Cytori AFT System is intended for use in the following surgical specialties when the aspiration of soft tissue is desired:

· Neurosurgery
· Gastrointestinal and Affiliated Organ Surgery
· Urological Surgery
· Plastic and Reconstructive Surgery
· General Surgery
· Orthopedic Surgery
· Gynecological Surgery
· Thoracic Surgery
· Laparoscopic Surgery

The Cytori AFT System is indicated for use when the fragmentation, emulsification, and aspiration of subcutaneous fatty tissues for aesthetic body contouring is desired.

Prescription Use	X	AND/OR	Over-The-Counter Use
(Part 21 CFR 801 Subpart D)			(21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE CONTINUE ON ANOTHER PAGE IF NEEDED)

(Division Sign-Off)

Concurrence of CDRH Office of Device Evaluation (ODE), Division of General, Restorative, and Neurological Devices

510(k) Number	1072587
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Regulation Number and Section

§ 878.5040 Suction lipoplasty system.

(a)
Identification. A suction lipoplasty system is a device intended for aesthetic body contouring. The device consists of a powered suction pump (containing a microbial filter on the exhaust and a microbial in-line filter in the connecting tubing between the collection bottle and the safety trap), collection bottle, cannula, and connecting tube. The microbial filters, tubing, collection bottle, and cannula must be capable of being changed between patients. The powered suction pump has a motor with a minimum of1/3 horsepower, a variable vacuum range from 0 to 29.9 inches of mercury, vacuum control valves to regulate the vacuum with accompanying vacuum gauges, a single or double rotary vane (with or without oil), a single or double diaphragm, a single or double piston, and a safety trap.(b)
Classification. Class II (special controls). Consensus standards and labeling restrictions.