(109 days)
The Intuitive Surgical da Vinci SP SureForm 45 Stapler, SP SureForm 45 Curved-Tip Stapler, and SureForm 45 Reloads and other accessories are intended to be used with the da Vinci SP Surgical System for resection, transection, and/or creation of anastomoses in Urologic, Thoracic, and Colorectal surgery.
The da Vinci SP SureForm 45 Curved Tip Stapler and da Vinci SP SureForm 45 Stapler, with the existing SureForm 45 Reloads (cleared via K183224 and K190999) are designed for use exclusively with compatible Intuitive da Vinci SP Surgical Systems (Model SP1098). It is intended for resection, transection and/or creation of anastomoses in surgery. The instrument achieves its intended use by placing multiple staggered rows of implantable staples in the target tissues (stapling) followed by cutting of the target tissue along the middle of the staple line (transection). The SP SureForm 45 Curved Tip Stapler and SP SureForm 45 Stapler Instruments are disposable, fully wristed articulating devices and are compatible with the existing, Intuitive manufactured SureForm 45 mm Gray, White, Blue, Green, and Black reloads (hereinafter referred to as SureForm 45 Reloads). The SP SureForm 45 Reloads consist of a single-use cartridge that contains multiple, staggered rows of implantable staples, and a stainless-steel knife.
The provided text describes the regulatory clearance of a surgical stapling device, the da Vinci SP SureForm 45 Staplers and Reloads, but does not contain information about an AI/ML powered medical device or the specific metrics, studies, and expert review processes associated with such devices.
Therefore, I cannot extract the requested information (acceptance criteria, device performance, sample sizes, expert qualifications, adjudication methods, MRMC studies, standalone performance, training set details) as it pertains to AI/ML device evaluations.
The document discusses the following types of studies:
- Design Verification (Bench Testing): Included physical specifications, mechanical requirements, electrical requirements, user interface requirements, equipment interface requirements, reliability, and packaging/labeling. The device met all acceptance criteria.
- Design Validation (Animal Studies): Acute validation studies using simulated clinical models (animal) to evaluate performance. This included:
- Staple Line Performance: Assessed staple line performance and staple formation.
- Leak Onset Pressure: Assessed leak onset pressure performance on ex vivo tissue.
- Design Validation Testing: Performed in a clinical laboratory setting.
- Human Factors Evaluation: Included analysis of use-related issues (MAUDE database), Comparative Task Analysis (CTA), Use-Related Risk Analysis (URRA), formative usability evaluations, and summative usability validations.
These studies are typical for mechanical surgical devices and do not involve AI/ML performance metrics or associated ground truth establishment by experts in the context of diagnostic or interpretive tasks.
§ 878.4740 Surgical stapler.
(a) Surgical stapler for external use.
(1)
Identification. A surgical stapler for external use is a specialized prescription device used to deliver compatible staples to skin during surgery.(2)
Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter, subject to the limitations in § 878.9.(b) Surgical stapler for internal use.
(1)
Identification. A surgical stapler for internal use is a specialized prescription device used to deliver compatible staples to internal tissues during surgery for resection, transection, and creating anastomoses.(2)
Classification. Class II (special controls). The special controls for this device are:(i) Performance testing must demonstrate that the stapler, when used with compatible staples, performs as intended under anticipated conditions of use. Performance testing must include the following:
(A) Evaluation of staple formation characteristics in the maximum and minimum tissue thicknesses for each staple type;
(B) For manual staplers only, measurement of the worst-case deployment pressures on stapler firing force;
(C) Measurement of staple line strength;
(D) Confirmation of staple line integrity; and
(E) In vivo confirmation of staple line hemostasis.
(ii) For powered staplers only, appropriate analysis/testing must demonstrate the electromagnetic compatibility and electrical, thermal, and mechanical safety of the device.
(iii) For powered staplers only, appropriate software verification, validation, and hazard analysis must be performed.
(iv) Human factors testing must demonstrate that the clinician can correctly select and safely use the device, as identified in the labeling, based on reading the directions for use.
(v) The elements of the device that may contact the patient must be demonstrated to be biocompatible.
(vi) Performance data must demonstrate the sterility of the device.
(vii) Validation of cleaning and sterilization instructions must demonstrate that any reusable device components can be safely and effectively reprocessed per the recommended cleaning and sterilization protocol in the labeling.
(viii) Performance data must support the shelf life of the device by demonstrating continued device functionality, sterility, and package integrity over the identified shelf life.
(ix) Labeling of the device must include the following:
(A) Unless data demonstrates the safety of doing so, contraindications must be identified regarding use of the device on tissues for which the risk of stapling outweighs any reasonably foreseeable benefit due to known complications, including the stapling of tissues that are necrotic, friable, or have altered integrity.
(B) Unless available information demonstrates that the specific warnings do not apply, the labeling must provide appropriate warnings regarding how to avoid known hazards associated with device use including:
(
1 ) Avoidance of use of the stapler to staple tissue outside of the labeled limits for maximum and minimum tissue thickness;(
2 ) Avoidance of obstructions to the creation of the staple line and the unintended stapling of other anatomic structures;(
3 ) Avoidance of clamping and unclamping of delicate tissue structures to prevent tissue damage;(
4 ) Avoidance of use of the stapler on the aorta;(
5 ) Establishing proximal control of blood vessels prior to stapling where practical and methods of blood vessel control in the event of stapler failure;(
6 ) Ensuring stapler compatibility with staples; and(
7 ) Risks specifically associated with the crossing of staple lines.(C) Specific user instructions for proper device use including measures associated with the prevention of device malfunction, and evaluation of the appropriateness of the target tissue for stapling.
(D) List of staples with which the stapler has been demonstrated to be compatible.
(E) Identification of key performance parameters and technical characteristics of the stapler and the compatible staples needed for safe use of the device.
(F) Information regarding tissues on which the stapler is intended to be used.
(G) Identification of safety mechanisms of the stapler.
(H) Validated methods and instructions for reprocessing of any reusable device components.
(I) An expiration date/shelf life.
(x) Package labels must include critical information and technical characteristics necessary for proper device selection.