(24 days)
The Galil Medical IceRod CX Cryoablation Needle is intended for cryoablative destruction of tissue during surgical procedures. The IceRod CX Cryoablation Needle is indicated for use as a cryosurgical tool in the fields of general surgery, dermatology, neurology (including cryoanalgesia), thoracic surgery (with the exception of cardiac tissue), ENT, gynecology, oncology, proctology, and urology. The systems are designed to destroy tissue by the application of extreme cold temperatures including prostate and kidney tissue, liver metastases, tumors, skin lesions, and warts.
The Galil Medical IceRod CX Cryoablation Needle has the following specific indications:
- Urology (ablation of prostate tissue in cases of prostate cancer and Benign Prostate Hyperplasia "BPH")
- . Oncology (ablation of cancerous or malignant tissue and benign tumors, and palliative intervention)
- . Dermatology (ablation or freezing of skin cancers and other cutaneous disorders. Destruction of warts or lesions, angiomas, sebaceous hyperplasia, basal cell tumors of the eyelid or canthus area, ulcerated basal cell tumors, dermatofibromas small hemanglomas. mucocele cysts, multiple warts, plantar warts, actinic and seborrheic keratoses, cavernous hemanglomas, perianal condylomata, and palliation of tumors of the skin.)
- . Gynecology (ablation of malignant neoplasia or benign dysplasia of the female genitalia)
- . General surgery (palliation of tumors of the rectum, hemorrhoids, anal fissures, pilonidal cysts, and recurrent cancerous lesions, ablation of breast fibroadenoma)
- . ENT (Palliation of tumors of the oral cavity and ablation of leukoplakia of the mouth)
- . Thoracic surgery (with the exception of cardiac tissue)
- . Proctology (ablation of benign or malignant growths of the anus or rectum, and hemorrhoids)
Galil is requesting clearance of a laser marking process improvement technique used to create the "markings" on the needle shaft of the previously cleared IceRod CX Needle (K121251). Galil's IceRod CX Needle (K121251) is a sterile, single use, disposable component used in conjunction with Galil Medical's Visual-ICE Cryoablation System (K113860, K123865) when performing cryoablative destruction of tissue. The needle has a sharp cutting tip, a 1.5mm (17G) shaft, a color-coded handle, gas tubing, and a connector. The handle is in a 90° configuration to aid positioning of the needle within the CT imaging system gantry. The IceRod CX needle contains shaft markings to aid the physician in needle placement. There are no changes to the marking dimensions on the needle. Only the marking technique has been modified.
Since Galil is requesting clearance for a revised shaft marking process improvement technique for the IceRod CX Cryoablation Needle design itself (with the exception of the shaft marking method) has not changed. There are no other design, specification, process, or material changes to the needle; additionally, the model number of the needle is unchanged.
This document is a 510(k) summary for the IceRod CX Cryoablation Needle, focusing on an improved laser marking process for the needle shaft. It primarily establishes substantial equivalence to a previously cleared device (K121251) rather than presenting a detailed clinical study with acceptance criteria in the typical sense for a brand new device or algorithm.
Therefore, many of the requested categories (e.g., sample size for test set, number of experts for ground truth, adjudication method, MRMC study, sample size for training set, ground truth for training set) are not applicable to the type of submission described. This submission is for a process improvement to an existing device, not a new diagnostic or therapeutic algorithm.
Here's a breakdown of the available information:
1. Table of Acceptance Criteria and Reported Device Performance
The document does not explicitly state quantitative acceptance criteria in the typical format of a new medical device submission (e.g., sensitivity, specificity, accuracy thresholds). Instead, the acceptance criteria are implicit in demonstrating that the new laser marking process does not negatively impact the needle's integrity, safety, or performance characteristics compared to the predicate device.
| Acceptance Criteria (Implied) | Reported Device Performance |
|---|---|
| No impact on needle integrity | Shaft qualification testing conducted to ensure no impact. |
| No impact on safety | Testing conducted to verify safety characteristics. |
| No impact on performance characteristics | Testing conducted to verify performance characteristics. |
| Laser marking does not affect the heat-affected zone | Heat affected zone measurements conducted. |
| Laser marking quality and adherence to specifications | Shaft marking quality and adherence to specifications evaluated. |
| Device design remains the same (except marking technique) | Confirmed. |
| Materials remain the same | Confirmed. |
| Principle of operation remains the same | Confirmed. |
| Mechanism of action remains the same | Confirmed. |
| Indications for Use remain the same | Confirmed. |
| Device functions remain the same (Freezing/Thawing Technology, Function, Freezing Parameters, Thaw Parameters, Tract Ablation) | Confirmed. |
2. Sample size used for the test set and the data provenance
- Sample Size: Not explicitly stated as a "test set" in the context of clinical performance. The document describes "shaft qualification testing," "heat affected zone measurements," and "shaft marking quality and adherence to specifications." The specific number of needles tested for these engineering/bench tests is not provided.
- Data Provenance: Not applicable in the context of clinical data. It's bench testing data conducted by Galil Medical.
3. 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 medical findings, is not relevant for this engineering-focused submission. The "ground truth" here is adherence to engineering specifications and performance parameters.
4. Adjudication method for the test set
Not applicable. No expert adjudication process 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. This submission is for a medical device (cryoablation needle), not an AI/CAD device, and therefore, an MRMC study is not relevant.
6. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done
Not applicable. This is not an algorithm or AI device.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
The "ground truth" for this submission is based on engineering specifications, performance metrics, and safety standards derived from the predicate device and established manufacturing/quality control processes. This involves physical measurements, stress tests, and evaluations against pre-defined limits for mechanical integrity, thermal properties, and visual quality of the markings.
8. The sample size for the training set
Not applicable. This is not a machine learning or AI device that requires a training set.
9. How the ground truth for the training set was established
Not applicable.
§ 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.