EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)

K243618 · Bridge TO Life · KDN · Jun 17, 2025 · Gastroenterology, Urology

Device Facts

• Record ID: K243618
• Device Name: EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
• Applicant: Bridge TO Life
• Product Code: KDN · Gastroenterology, Urology
• Decision Date: Jun 17, 2025
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 876.5880
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is intended for in situ topical cooling during surgical procedures and during intraoperative recovery from an organ transplant donor. It is also intended to maintain organ hypothermia during storage and transport to the transplant recipient.

Device Story

EasiSlush® is a sterile, non-pyrogenic, isotonic 0.9% sodium chloride solution provided in a 2L flexible, non-PVC bag. Used by surgeons and transplant teams in clinical settings (OR, organ recovery), the solution is pre-cooled to create a slush. During organ recovery or open surgery, the slush is applied topically to organ surfaces to induce regional hypothermia, reducing metabolic activity and protecting tissues from ischemia. For storage and transport, the slush surrounds a primary organ bag within secondary/tertiary containers, which are then placed in insulated transport boxes with non-sterile ice. The device provides a physical cooling medium; it does not involve active electronic monitoring or automated processing. Benefits include preservation of organ viability and tissue protection during surgical procedures.

Clinical Evidence

No clinical data provided; bench testing only.

Technological Characteristics

0.9% Sodium Chloride solution (USP monograph); 300 mOsmol/kg; pH 4.5–7.0. Provided in 2L sterile, PVC-free flexible bag. Terminal gamma irradiation sterilization. Biocompatible per ISO 10993-1/2/5/10/12. No electronic components, software, or connectivity.

Indications for Use

Indicated for topical cooling of in situ abdominal donor organs during intraoperative recovery, maintenance of organ hypothermia during storage and transport, and topical cooling of organs during open surgical procedures including cardiovascular, abdominal, and transplant surgeries.

Regulatory Classification

Identification

An isolated kidney perfusion and transport system and accessories is a device that is used to support a donated or a cadaver kidney and to maintain the organ in a near-normal physiologic state until it is transplanted into a recipient patient. This generic type of device may include tubing, catheters, connectors, an ice storage or freezing container with or without bag or preservatives, pulsatile or nonpulsatile hypothermic isolated organ perfusion apparatus with or without oxygenator, and disposable perfusion set.

Predicate Devices

• EasiSlush® (K191006)

Submission Summary (Full Text)

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FDA U.S. FOOD & DRUG ADMINISTRATION

June 17, 2025

Bridge to Life
Mark Harper
Compliance Manager
707 Skokie Boulevard, Suite 340
Northbrook, Illinois 60062

Re: K243618
Trade/Device Name: EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
Regulation Number: 21 CFR 876.5880
Regulation Name: Isolated Kidney Perfusion And Transport System And Accessories
Regulatory Class: Class II
Product Code: KDN
Dated: May 16, 2025
Received: May 19, 2025

Dear Mark Harper:

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 (the 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.

Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device"

U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov

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K243618 - Mark Harper
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(https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

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 medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

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K243618 - Mark Harper
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Sincerely,

Maura Rooney -S

Maura Rooney
Assistant Director
DHT3A: Division of Renal, Gastrointestinal, Obesity, and Transplant Devices
OHT3: Office of Gastrorenal, ObGyn, General Hospital, and Urology Devices
Office of Product Evaluation and Quality
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: 07/31/2026
See PRA Statement below.

510(k) Number (if known)
K243618

Device Name
EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)

Indications for Use (Describe)
EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is intended for topical cooling of in situ, abdominal donor organs during intraoperative recovery from the donor. It is also intended to maintain organ hypothermia during storage and transport to the transplant recipient. EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is used to establish, and maintain hypothermia of donor organs during recovery, storage, and transport.

It is also indicated for use during open surgical procedures such as cardiovascular, abdominal, and transplant surgeries.

Organ Recovery
Prior to organ recovery, EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is delivered to the open peritoneal cavity of the donor to assist in creating hypothermia by topically cooling external surfaces of organs for recovery. During organ recovery, if ice crystals are no longer visible, the temperature of the saline solution will begin to rise and additional slushed solution may be delivered per established transplant team procedures. (Temperature rise may be assessed with temperature probes, being careful that the probe is measuring the solution and is not in contact with the organ).

Organ Storage/Transport
For organ storage/transport, EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) may be used to topically cool external surfaces of a sterile, sealed, primary organ bag containing chilled preservation solution and the organ. In this application, the slushed solution may be added to a secondary bag or to a tertiary hard container to surround the primary organ bag. Once bagged, the organ can be placed in a bed of non-sterile ice in an insulated transport container, which is then closed. Actual use should follow standard practices of the OPO or hospital for transporting and storing specific types of donor organs using sterile, slush solutions.

Surgical Procedure
During surgical procedures, EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is delivered to assist in creating hypothermia by topically cooling external surfaces of organs. During the procedure, if ice crystals are no longer visible, the temperature of the saline solution will begin to rise and additional slushed solution may be delivered per established surgical team procedures.

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.

FORM FDA 3881 (8/23)
Page 1 of 2
PSC Publishing Services [phone]

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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:

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FORM FDA 3881 (8/23)
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K243618: Traditional 510(k), EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
K243618
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# K243618: 510(k) Summary

## 1.0 SUBMITTER

Bridge to Life Ltd
707 Skokie Blvd, Ste. 340
Northbrook, IL 60062

Contact Person: Mark Harper
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Date Prepared: November 22nd, 2024

## 2.0 DEVICE

Proprietary Name: EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
Common Name: EasiSlush® Slush Solution
Classification Name: Isolated kidney perfusion and transport system and accessories
Device Classification: Class II, 876.5880
Product Code: KDN

## 3.0 PREDICATE DEVICE

| Company | Device | K Number | Date Cleared |
| --- | --- | --- | --- |
| Bridge to Life | EasiSlush® | K191006 | Sept. 24, 2019 |

## 4.0 DEVICE DESCRIPTION

EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is a clear, colorless 0.9% Sodium Chloride solution for preparation of slushed solution to provide hypothermia during the recovery, storage, and transport of donor organs for transplantation and to induce regional hypothermia in certain surgical procedures such as open heart and kidney procedures by direct application of slushed solution. The solution is sterile, non-pyrogenic, isotonic and is contained in a 2L sterile, flexible, non-PVC bag.

## 5.0 INTENDED USE

EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is intended for in situ topical cooling during surgical procedures and during intraoperative recovery from an organ transplant donor. It is also intended to maintain organ hypothermia during storage and transport to the transplant recipient.

## 6.0 INDICATIONS FOR USE

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K243618: Traditional 510(k), EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
K243618
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EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is intended for topical cooling of in situ, abdominal donor organs during intraoperative recovery from the donor. It is also intended to maintain organ hypothermia during storage and transport to the transplant recipient. EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is used to establish, and maintain hypothermia of donor organs during recovery, storage, and transport.

It is also indicated for use during open surgical procedures such as cardiovascular, abdominal, and transplant surgeries.

## Organ Recovery

Prior to organ recovery, EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is delivered to the open peritoneal cavity of the donor to assist in creating hypothermia by topically cooling external surfaces of organs for recovery. During organ recovery, if ice crystals are no longer visible, the temperature of the saline solution will begin to rise and additional slushed solution may be delivered per established transplant team procedures. (Temperature rise may be assessed with temperature probes, being careful that the probe is measuring the solution and is not in contact with the organ).

## Organ Storage/Transport

For organ storage/transport, EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) may be used to topically cool external surfaces of a sterile, sealed, primary organ bag containing chilled preservation solution and the organ. In this application, the slushed solution may be added to a secondary bag or to a tertiary hard container to surround the primary organ bag. Once bagged, the organ can be placed in a bed of non-sterile ice in an insulated transport container, which is then closed. Actual use should follow standard practices of the OPO or hospital for transporting and storing specific types of donor organs using sterile, slush solutions.

## Surgical Procedure

During surgical procedures, EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250) is delivered to assist in creating hypothermia by topically cooling external surfaces of organs. During the procedure, if ice crystals are no longer visible, the temperature of the saline solution will begin to rise and additional slushed solution may be delivered per established surgical team procedures.

## 7.0 SUBSTANTIAL EQUIVALENCE DISCUSSION

## 7.1 Historical 510(k) Clearance

EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is a clear, colorless, 0.9% Sodium Chloride solution for the preparation of slushed solution. The solution is sterile, non-pyrogenic, isotonic and is contained in a 2L sterile, flexible, non-PVC bag. EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) received 510k clearance in 2019, under K191006, as a Class II medical device for the intended use of establishing and maintaining regional hypothermia of donor organs during recovery, storage, and transport.

## 7.2 Summary of Key Feature Changes

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K243618: Traditional 510(k), EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
K243618
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This 510(k) submission is to expand the EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) Indications for Use for surgical procedures, such as open heart and kidney surgeries, for the same intended use of establishing and maintaining topical hypothermia by direct application of slushed saline. There have been no changes to the technological characteristics from the predicate device to the subject device. There are no changes to the formulation, method of use, packaging, sterilization method, slush preparation, delivery method, or mode of action by which the devices achieve their effects.

To illustrate the substantial equivalence of subject EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) to the predicate EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) cleared in 2019, a high-level comparison is provided in Table 1.

Table 1. Comparative Summary of the Subject EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) with the Predicate EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) (cleared under K191006)

| Detail and Technological Characteristic | Previously Cleared EasiSlush® (K191006) | Under Review | Comparison |
| --- | --- | --- | --- |
| Device | EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) | EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) | |
| 510k Number | K191006 | K243618 | |
| Manufacturer | Bridge to Life 707 Skokie Boulevard Suite 340, Northbrook, IL 60062 | Bridge to Life 707 Skokie Boulevard Suite 340, Northbrook, IL 60062 | No Change |
| Classification & Product Code | 876.5880; KDN | 876.5880; KDN | No Change |
| Device Regulation Description | Isolated kidney perfusion and transport system and accessories | Isolated kidney perfusion and transport system and accessories | No Change |
| Common Name | 0.9% Saline Slush Solution | 0.9% Saline Slush Solution | No Change |
| DESCRIPTION, INDICATIONS, & INTENDED USE | | | |
| Device Description | EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is a clear, colorless 0.9% Sodium Chloride solution for preparation of slushed solution to provide hypothermia during the recovery, storage, and transport of donor organs for transplantation. The solution is sterile, non-pyrogenic, isotonic and is contained in a 2L sterile, flexible, non-PVC bag. | EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is a clear, colorless 0.9% Sodium Chloride solution for preparation of slushed solution to provide hypothermia during the recovery, storage, and transport of donor organs for transplantation and intraoperatively to provide topical cooling in situ for surgical procedures. The solution is sterile, non-pyrogenic, isotonic and is | EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) can be used to provide topical cooling in certain surgical procedures such as open heart and kidney procedures by direct application of slushed solution. There is no change to the |

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K243618: Traditional 510(k), EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
K243618
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| Indications for Use | contained in a 2L sterile, flexible, non-PVC bag. | intended purpose of the slushed solution. |
| --- | --- | --- |
| EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is intended for topical cooling of in-situ, abdominal donor organs during intraoperative recovery from the donor. It is also intended to maintain organ hypothermia during storage and transport to the transplant recipient. EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is used to establish, and maintain hypothermia of donor organs during recovery, storage, and transport.

**Organ Recovery**
Prior to organ recovery, EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is delivered to the open peritoneal cavity of the donor to assist in creating hypothermia by topically cooling external surfaces of organs for recovery. During organ recovery, if ice crystals are no longer visible, the temperature of the saline solution will begin to rise and additional EasiSlush slushed solution may be delivered per established transplant team procedures. (Temperature rise may be assessed with temperature probes, being careful that the probe is measuring the solution and is not in contact with the organ).

**Organ Storage/Transport**
For organ storage/transport, EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) may be used to topically cool external surfaces of a sterile, sealed, primary organ bag containing chilled preservation solution and the organ. In this application, | EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is intended for topical cooling of in-situ, abdominal donor organs during intraoperative recovery from the donor. It is also intended to maintain organ hypothermia during storage and transport to the transplant recipient. EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is used to establish, and maintain hypothermia of donor organs during recovery, storage, and transport.

It is also indicated for use during open surgical procedures such as cardiovascular, abdominal, and transplant surgeries.

**Organ Recovery**
Prior to organ recovery, EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is delivered to the open peritoneal cavity of the donor to assist in creating hypothermia by topically cooling external surfaces of organs for recovery. During organ recovery, if ice crystals are no longer visible, the temperature of the saline solution will begin to rise and additional slushed solution may be delivered per established transplant team procedures. (Temperature rise may be assessed with temperature probes, being careful that the probe is measuring the solution and is not in contact with the organ). | **General Indications for Use Same: EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is used for topical cooling of in situ and donor organs. Device is used at hypothermic temperatures, to slow biological deterioration in organs.

**Specifically: Use #1 – Organ Recovery – Same**
**Use #2 – Organ Storage/Transport – Same. Use #3 - Surgical Procedure During surgical procedures, EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is delivered to topically cool the exterior surface of organs to reduce metabolic activity so that tissues can tolerate a period of total or relative ischemia.**** |

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K243618: Traditional 510(k), EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
K243618
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| | EasiSlush may be added to a secondary bag or to a tertiary hard container to surround the primary organ bag. Once bagged, the organ can be placed in a bed of non-sterile ice in an insulated transport container, which is then closed. Actual use should follow standard practices of the OPO or hospital for transporting and storing specific types of donor organs using sterile, slush solutions. | used to topically cool external surfaces of a sterile, sealed, primary organ bag containing chilled preservation solution and the organ. In this application, the slushed solution may be added to a secondary bag or to a tertiary hard container to surround the primary organ bag. Once bagged, the organ can be placed in a bed of non-sterile ice in an insulated transport container, which is then closed. Actual use should follow standard practices of the OPO or hospital for transporting and storing specific types of donor organs using sterile, slush solutions.
**Surgical Procedure**
During surgical procedures, EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is delivered to assist in creating hypothermia by topically cooling external surfaces of organs. During the procedure, if ice crystals are no longer visible, the temperature of the saline solution will begin to rise and additional slushed solution may be delivered per established surgical team procedures. | |
| --- | --- | --- | --- |
| **Intended Use** | EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is intended for topical cooling of in situ, abdominal donor organs during intraoperative recovery from the donor. It is also intended to maintain organ hypothermia during storage and transport to the transplant recipient. | EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is intended for *in situ* topical cooling during surgical procedures and during intraoperative recovery from an organ transplant donor. It is also intended to maintain organ hypothermia during storage and transport to the transplant recipient. | **Same** |
| **TECNOLOGICAL CHARACTERISTICS** | | | |
| **Storage Temperature** | 2o to 25o C | 2o to 25o C | **No Change** |
| **Pre-Cooling** | Pre-cool solution prior to use (-4 o to -15 o C) | Pre-cool solution prior to use (-4 o to -15 o C) | **No Change** |
| **In-Situ Organ** | External and internal cooling of | External and internal cooling of | **No Change** |

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K243618: Traditional 510(k), EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)
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| Cooling | organ | organ | |
| --- | --- | --- | --- |
| Maintain Cold Organ Temperature During Storage and Transport | Directly cools the organ vasculature during hypothermic storage and transportation (not for continuous perfusion) to the patient. | Directly cools the organ vasculature during hypothermic storage and transportation (not for continuous perfusion) to the patient. | *No Change* |
| Product State | Liquid - Solution | Liquid - Solution | *No Change* |
| Composition | Buffered saline solution. 0.9% Sodium Chloride Irrigation USP | Buffered saline solution. 0.9% Sodium Chloride Irrigation USP | *No Change* |
| Osmolality | 300 mOsmol/kg | 300 mOsmol/kg | *No Change* |
| pH | 4.5–7.0 (per USP monograph for 0.9% Sodium Chloride Irrigation) | 4.5–7.0 (per USP monograph for 0.9% Sodium Chloride Irrigation) | *No Change* |
| Fluid Volume | 1,250ml | 1,250ml | *No Change* |
| Single Use Only | Yes | Yes | *No Change* |
| Primary Container | PVC-Free Bag | PVC-Free Bag | *No Change* |
| Protecting Overwrap Bag | Yes | Yes | *No Change* |
| Shelf Life | 24 Months | 24 Months | *No Change* |
| SAFETY | | | |
| Pyrogenicity | Non-Pyrogenic | Non-Pyrogenic | *No Change* |
| Sterility | Terminally sterilized | Terminally sterilized | *No Change* |
| Sterilization | Terminal gamma irradiation | Terminal gamma irradiation | *No Change* |
| Biocompatibility | Biocompatible in accordance with ISO 10993-1/2/5/10/12. | Biocompatible in accordance with ISO 10993-1/2/5/10/12. | *No Change* |
| Sterile Dispensing/Administration | Sterile bag is cut with sterile instrument and contents dispensed to desired location. | Sterile bag is cut with sterile instrument and contents dispensed to desired location. | *No Change* |
| Bag Connections | None | None | *No Change* |

## 8.0 CONCLUSION

The comparative analysis of the EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) subject device to the predicate EasiSlush® (Sodium Chloride Solution for Sterile Slush

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K243618: Traditional 510(k), EasiSlush® Sodium Chloride Solution for Sterile Slush Preparation (BTLE-1250)

K243618
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Preparation) (BTLE-1250) device demonstrates that:
- The intended use of the subject device is the same as the predicate.
- The indications for use have been expanded but remain within the scope of the same intended use.
- There are no new technological characteristics.
- The proposed expansion for the indication of use of the subject device does not raise new questions of safety or effectiveness.

Therefore, the subject device meets the requirements for substantial equivalence under 21 CFR 807.100 and the subject EasiSlush® (Sodium Chloride Solution for Sterile Slush Preparation) (BTLE-1250) is as safe and effective for its intended use as the previously cleared 510(k).

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