K Number
K041771
Device Name
TWIN STAR COMPARTMENT SYNDROME PRESSURE MONITORING AND FLUID COLLECTION CATHETER SYSTEM
Date Cleared
2004-09-14

(76 days)

Product Code
Regulation Number
N/A
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is intended for the immediate or continuous measurement of intracompartmental pressure and for the withdrawal of fluid for subsequent analysis. The measured pressures and the withdrawn fluid serve as an aid in the diagnosis of compartment syndrome.
Device Description
The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System Consists of two major components i.e., an Introducer and an indwelling Catheter. The Introducer consists of a plastic sheath placed over a stainless steel trocar. The Introducer provides an access to the targeted muscle compartment to facilitate the placement of the indwelling Monitoring and Fluid Collection Catheter. The indwelling Catheter is designed to measure intramuscular compartment pressure as well as provide a means to collect a sample interstitial fluid for laboratory analysis. The indwelling Catheter is designed for use up to 24 hours. The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is designed to be used with currently marketed equipment including a vacuum pump, infusion pump, pressure transducer and monitor.
More Information

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Not Found

No
The description focuses on the physical components and function of the device for pressure measurement and fluid collection, with no mention of AI or ML for data analysis or interpretation.

No
The device is described as aiding in the diagnosis of compartment syndrome by measuring pressure and collecting fluid, not in treating it.

Yes
The device is described as aiding in the diagnosis of compartment syndrome by measuring intracompartmental pressure and withdrawing fluid for analysis.

No

The device description clearly outlines physical components (Introducer, indwelling Catheter) and mentions use with other hardware (vacuum pump, infusion pump, pressure transducer, monitor).

Based on the provided information, the Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is not an IVD (In Vitro Diagnostic).

Here's why:

  • IVD Definition: In vitro diagnostics are tests performed on samples taken from the human body, such as blood, urine, or tissue, to detect diseases, conditions, or infections. They are used outside of the body (in vitro).
  • Device Function: The Twin Star system is designed to be inserted into the body (in vivo) to directly measure pressure within a muscle compartment and collect fluid from that compartment.
  • Intended Use: While the collected fluid is intended for subsequent analysis (which would likely be an in vitro process), the device itself is the tool for collecting the sample and measuring pressure in vivo. The primary function of the device is not the diagnostic test itself, but rather providing the means to obtain information (pressure) and a sample for a separate diagnostic test.

Therefore, the Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is a medical device used for in vivo measurement and sample collection, not an in vitro diagnostic device.

N/A

Intended Use / Indications for Use

The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is intended for the immediate or continuous measurement of intracompartmental pressure or for the withdrawal of fluid for subsequent analysis. The measured pressures and the withdrawn fluid serve as an aid in the diagnosis of compartment syndrome.

Product codes (comma separated list FDA assigned to the subject device)

LXC

Device Description

The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System Consists of two major componentic Oth Othpartners i.e., an Introducer and an indwelling Catheter. The Introducer provides an associety in the Monitoring and Fluid Collection Catheter. The placement of the mawelling intramuscular compartment pressure as well indwelling outhority a sample interstitial fluid for laboratory analysis. The indwelling as provide a means to campio into 24 hours. The Twin Star Compartment Pressure Oather is dong. But as a long Catheter System is designed to be used with currently Monitoring and Find equipment including a vacuum pump, infusion pump, pressure transducer and monitor.

Mentions image processing

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Mentions AI, DNN, or ML

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Input Imaging Modality

Not Found

Anatomical Site

Not Found

Indicated Patient Age Range

Not Found

Intended User / Care Setting

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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)

Documentation has been provided which demonstrates that the Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is substantially equivalent to other legally marketed devices such as the Stryker Intra-Compartment Pressure Monitor System. Comparisons were made demonstrating equivalent testing during animal and human clinical studies of the Twin Star Compartment Syndrome Pressure Monitoring and Fluid Collection Catheter System with the predicate system to measure intracompartment pressure in an animal model and a human clinical study.

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.

Not Found

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 for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

N/A

0

SEP 1 4 2004

K041771 1 of 1

510(k) Summary Summary of Safety and Effectiveness Information

Sponsor:

Twin Star Medical, Inc. 914 South 8th Street Mail Code 860c Minneapolis, Minnesota 55404 Tele: 763.576.5172 Fax: 763.576.9273

Device Name:

Twin Star Compartment Monitoring and Fluid Collection Catheter System

Device Classification:

Class II - Monitor, Pressure, Intracompartmental

Device Description:

The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System The Twin Oth Othpartners i.e., an Introducer and an indwelling Catheter. The Consists of two major componentic sheath placed over a stainless steel trocar. The Introducer provides an access to the targeted muscle compartment to facilitate the Introducer provides an associety in the Monitoring and Fluid Collection Catheter. The placement of the mawelling intramuscular compartment pressure as well indwelling outhority a sample interstitial fluid for laboratory analysis. The indwelling as provide a means to campio into 24 hours. The Twin Star Compartment Pressure Oather is dong. But as a long Catheter System is designed to be used with currently Monitoring and Find equipment including a vacuum pump, infusion pump, pressure transducer and monitor.

Indications:

Includions:
The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is intended for the immediate or continuous measurement of intracompartmental 15 intended for the withdrawal of fluid for subsequent analysis. The measured pressures and the withdrand of the diagnosis of compartment syndrome.

Substantial Equivalence:

Substantial Equivalences
Documentation has been provided which demonstrates that the Twin Star Compartment Documentation nas boon provided with Niew Catheter System is substantially Synuronie Tressure Moniconing and devices such as the Stryker Intra-Compartment equivalent to other logally mamorean testing during animal and human clinical studies Fressure Monitor Oyoton: Semparisone Twin Star Compartment Syndrome Pressure Monitoring and Fluid Collection Catheter System with the predicate system to measure intracompartment pressure in an animal model and a human clinical study.

1

Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract image of an eagle.

SEP 1 4 2004

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Twin Star Medical, Inc. c/o Mr. Jonathan S. Kahan, Esq. Hogan & Hartson, LLP 555 Thirteenth Street, NW Washington, DC 20004

Re: K041771

Trade/Device Name: Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System

Regulatory Class: Unclassified Product Code: LXC Dated: June 22, 2004 Received: June 30, 2004

Dear Mr. Kahan:

We have reviewed your Section 510(k) premarket notification of intent to market the device wt have reviewed your becamined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use battled in 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 r ou may, merere, mains 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 or any I 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.

2

Page 2 - Mr. Jonathan S. Kahan, Esq.

This letter will allow you to begin marketing your device as described in your Section 510(k) I mis letter will anow yourse organ finding of substantial equivalence of your device to a legally prematicated 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 If you desire specific arrioliance at (301) 594-4659. 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 other general 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,

Muriam C. Purvost

Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

3

KO417 1_ of 1

Indications for Use

510(k) Number (if known): #041771

Device Name: Device Name.
Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System

Indications For Use:

Indications For Ose.
The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System The Twill Star Oompartment Prossation.ous measurement of intracompartmental ls intended for the immediate of contificassubsequent analysis. The freessured pressures and the withdrawarer half for oubseques has an aid in the diagnosis of compartment syndrome.

Prescription Use × (Part 21 CFR 801 Subpart D) AND/OR

Over-The-Counter Use _ (21 CFR 807 Subpart C)

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

Miriam C. Provost
(Division Sign-Off)

Concurrentision of Gefficeal; Restoration (ODE) and Neurological Devices

510(k) Number k04177/