Signia Small Diameter Reloads

K191070 · Covidien · GDW · Sep 4, 2019 · General, Plastic Surgery

Device Facts

• Record ID: K191070
• Device Name: Signia Small Diameter Reloads
• Applicant: Covidien
• Product Code: GDW · General, Plastic Surgery
• Decision Date: Sep 4, 2019
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 878.4750
• Device Class: Class 2
• Attributes: Therapeutic, Pediatric

Intended Use

The Signia™ small diameter gray and white reloads have applications in abdominal, gynecologic, pediatric and thoracic surgery for resection and transection ofvasculature using gray reloads and thin tissue and vasculature using white reloads.

Device Story

Signia Small Diameter Reload is an 8mm diameter surgical stapler component for open and minimally invasive procedures. Device comprises distal shaft, jaws, single-use knife, curved-tip anvil, and cartridge. Input: manual positioning by surgeon; device communicates via intelligence chip with compatible powered stapler handles. Operation: curved tip aids positioning around target tissue/vessels; device delivers two staggered rows of titanium staples on either side of cut line while simultaneously dividing tissue. Used in OR by surgeons. Output: stapled and transected tissue. Benefits: narrow shaft and end-effector facilitate access in tight spaces (e.g., intercostal spaces, difficult-to-reach vessels).

Clinical Evidence

No clinical data. Evidence consists of bench testing (visual inspection, force testing, knife cut, staple formation, communications, trocar insertion, pneumo-seal, burst pressure), acute animal studies (tissue trauma, hemostasis), and chronic animal survival studies (canine lobectomy, porcine nephrectomy/splenectomy/ovariohysterectomy).

Technological Characteristics

Materials: Titanium (staples), Stainless Steel (knife). Dimensions: 8mm diameter, 30mm/45mm length, 15cm/24cm shaft. Features: Curved-tip anvil, multi-articulation (max 45°). Connectivity: Intelligence chip for communication with powered handles. Sterilization: ISO 11135. Electrical/EMC: IEC 60601-1, IEC 60601-1-2.

Indications for Use

Indicated for resection and transection of vasculature (gray reloads) and thin tissue/vasculature (white reloads) in abdominal, gynecologic, pediatric, and thoracic surgery.

Regulatory Classification

Identification

An implantable staple is a staple-like device intended to connect internal tissues to aid healing. It is not absorbable.

Predicate Devices

• Endo GIA™ Auto Suture™ Universal Articulating Loading Unit (Gray and White) (K111825)

Reference Devices

• Echelon Flex™ Powered Vascular Stapler with Advanced Placement Tip and Endopath Echelon™ Vascular White Reload for Advanced Placement Tip (K141952)

Submission Summary (Full Text)

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September 4, 2019

Covidien Frank Gianelli Regulatory Affairs Senior Product Specialist 60 Middletown Avenue North Haven, Connecticut 06473

Re: K191070

Trade/Device Name: Signia Small Diameter Reloads Regulation Number: 21 CFR 878.4750 Regulation Name: Implantable Staple Regulatory Class: Class II Product Code: GDW Dated: April 19, 2019 Received: April 22, 2019

Dear Mr. Gianelli:

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. 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 located 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.

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

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requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 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-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/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-device-advice-comprehensive-regulatoryassistance/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).

Sincerely,

for Cindy Chowdhury Acting Assistant Director DHT4B: Division of Infection Control and Plastic Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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# Indications for Use

510(k) Number (if known) K191070

Device Name Signia™ Small Diameter Reloads

#### Indications for Use (Describe)

The Signia™ small diameter gray and white reloads have applications in abdominal, gynecologic, pediatric and thoracic surgery for resection and transection ofvasculature using gray reloads and thin tissue and vasculature using white reloads.

| Type of Use (Select one or both, as applicable) | |
|---------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------|
| <div> <span> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |

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# 510(K) Summary

#### Date Prepared:

August 28, 2019

#### Submitter:

Covidien 60 Middletown Avenue North Haven, CT 06473

## Contact:

Frank Gianelli Regulatory Affairs Senior Product Specialist Telephone: [phone] Fax: [phone] [e-mail] Email:

### Name of Device:

Trade/Proprietary Name: Signia™ Small Diameter Reloads Surgical Stapler with Implantable Staples Common Name: Classification Name: Staples, Implantable a. Panel no and product code: 79 GDW

b. Requlation no: 21 CFR 878.4750

### Predicate Devices:

Primary:

| Trade/Proprietary Name: | Endo GIA™ Auto Suture™ Universal Articulating Loading Unit<br>(Gray and White) |
|-------------------------|--------------------------------------------------------------------------------|
| Common Name: | Surgical Stapler with Implantable Staples |
| Classification Name: | Staples, Implantable, (79 GDW, 21 CFR 878.4750) |
| 510(k) Number: | K111825 |
| Manufacturer: | Covidien |

#### Reference:

| Trade/Proprietary Name: | Echelon Flex™ Powered Vascular Stapler with Advanced<br>Placement Tip and Endopath Echelon™ Vascular White Reload<br>for Advanced Placement Tip |
|-------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------|
| Common Name: | Surgical Stapler with Implantable Staples |
| Classification Name: | Staples, Implantable, (79 GDW, 21 CFR 878.4750) |
| 510(k) Number: | K141952 |
| Manufacturer: | Ethicon Endo-Surgery Inc. |

#### Device Description:

The Signia™ Small Diameter Reload is an 8mm diameter reload that will be utilized for open and minimally invasive surgical procedures for transection and resection of tissue and specifically, vascular and thin tissue structures.

The reload is the distal shaft and jaws of the stapler system; comprised of a single-use knife, fixed curve tip anvil and stapler cartridge with two (2) rows of staples on either side of the knife blade.

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The Signia™ Small Diameter Reload features a narrow shaft diameter, narrow end-effector, curved-tip anvil, multi-articulation angles, and delivers two staggered rows of titanium staples on either side of the cut line. These features facilitate device access during surgery in smaller/fighter intercostal spaces, smaller surgical spaces and difficult to reach vessels/vasculature.

The Signia™ Small Diameter Reload places staggered rows of titanium staples and simultaneously divides the tissue so that two staggered rows of staples are placed on either side of the cut line. The size of the staples is determined by the selection of the single use reload.

The Signia™ small diameter reload is available in multiple configurations with the following features:

- . Open Staple Height: 2.0 mm (gray cartridge) and 2.5 mm (white cartridge)
- . Cartridge Length: 30 mm and 45 mm
- Anvil Tip: Curved .
- Reload Shaft Length: Short (15 cm) and Long (24 cm) .
- Reload Diameter (mid-shaft to distal end): 8 mm ●

The curved tip on the distal-end of the reload can be used to aid in positioning the reload around target tissue/vessels for subsequent firing and placement of staples. The working length of the Signia™ small diameter reload will fit through an 8mm trocar sleeve or larger and is compatible with existing Endo GIA™ handles and Signia™ adapters. The short shaft lengths (15cm) are recommended for use in open or thoracic procedures and are compatible with thoracic trocar sleeves. The long shaft lengths (24 cm) are recommended for use in laparoscopic procedures with 8 mm diameter trocar sleeves. Signia™ small diameter reloads are recommended for use with Covidien compatible short Stapler handles and adapters. Signia™ small diameter reloads contain an intelligence chip. The intelligence chip has the ability to communicate with Covidien powered stapler handles that have a compatible communications interface.

#### Indications for Use:

The Signia™ small diameter gray and white reloads have applications in abdominal, gynecologic, pediatric and thoracic surgery for resection and transection of vasculature using gray reloads and thin tissue and vasculature using white reloads.

#### Technological and Performance Characteristics:

The subject Signia™ Small Diameter Reloads are substantially equivalent to primary predicate Endo GIA™ Auto Suture™ Universal Articulating Loading Units (Gray and White) and to reference predicate Echelon Flex™ Powered Vascular Stapler with Advanced Placement Tip and Endopath Echelon™ Vascular White Reload for Advanced Placement Tip in regard to the stapling technologies employed, intended use and similar indications for use.

Specifically, the subject Signia™ Small Diameter Reloads when used with compatible Covidien stapler handles is similar to reference predicate Endo GIA™ Auto Suture™ Universal Articulating Loading Units (Gray and White) also when used with compatible Covidien stapler handles with respect to features such as staple line length, staple size, reload color (Gray, White), multi-articulation angles, and intended tissue type of thin/vascular. The main difference between the subject Signia™ Small Diameter Reloads and primary predicate Endo GIAT™ Auto Suture™ Universal Articulating Loading Units (Grav and White) is the Signia™ Small Diameter Reloads deliver two-staggered rows of titanium staples on either side of the rather than three-staggered rows of titanium staples on either side of the as with the primary predicate.

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Specifically, the subject Signia™ Small Diameter Reloads when used with compatible Covidien stapler handles is similar to reference predicate Echelon Flex™ Powered Vascular Stapler with Advanced Placement Tip and Endopath Echelon™ Vascular White Reload for Advanced Placement Tip with respect to features such as narrow shaft diameter, narrow end-effector, curved-tip anvil, multi-articulation angles, and delivering two staggered rows of titanium staples on either side of the cut line. Also, the intended tissue type of thin/vascular is the same for both.

| | Proposed Device | Primary Predicate Device<br>(K111825) | Reference Predicate Device<br>(K141952) |
|--------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Feature | Signia™ Small Diameter Reload<br>(Gray and White) | Endo GIA™ Auto Suture™<br>Universal Articulating Loading<br>Units (Gray and White) | Echelon PVS with Echelon<br>Vascular Reload |
| Same basic function<br>for reloads - rotation,<br>articulation, clamp,<br>unclamp, firing,<br>retraction, grasping | Yes | Yes | Yes |
| Indications for use | The Signia™ small diameter gray<br>and white reloads have<br>applications in abdominal,<br>gynecologic, pediatric and thoracic<br>surgery for resection and<br>transection of vasculature using<br>gray reloads and thin tissue and<br>vasculature using white reloads. | The Endo GIA™ universal staplers<br>have applications in abdominal,<br>gynecology, pediatric, and<br>thoracic, surgery for resection<br>transection and creation of<br>anastomosis. | The Echelon Flex™ Powered<br>Vascular Stapler with Advanced<br>Placement Tip and its reload are<br>intended for transection and<br>resection of tissue and<br>vasculature. The instruments have<br>application in multiple open or<br>minimally invasive general,<br>gynecologic, urologic, thoracic,<br>and pediatric surgical procedures. |
| Same intended use | Yes | Yes | Yes |
| Staple line length | 30 mm<br>45 mm | 30 mm<br>45 mm<br>60 mm | 35 mm |
| Anvil tip<br>configuration | Curved tip anvil | Round tip anvil | Curved-tip anvil |
| Shaft length (from<br>proximal<br>attachment) | Short (20 cm) and Long (29 cm) | 11.25 cm | 32 cm |
| Shaft diameter | 12 mm to 8 mm<br>Variable shaft diameter:<br>constructed with shaft diameter of<br>12 mm approximate at proximal<br>end and 8 mm approximate from<br>narrowed mid-section of shaft to<br>distal working end at end-effector. | 12 mm<br>Uniform shaft diameter:<br>constructed with a shaft diameter<br>of 12 mm approximate at proximal<br>end to distal working end at end-<br>effector | 9 mm to 12 mm<br>Variable shaft diameter:<br>constructed with a shaft diameter<br>of 9 mm approximate at narrowed<br>proximal end and mid-section of<br>shaft to 12 mm approximate at<br>distal working end at end-effector |
| Staple Sizes:<br>open leg height<br>(cartridge color) | 2.0mm (Gray)<br>2.5mm (White) | 2.0mm (Gray)<br>2.5mm (White) | 2.5 mm (White) |
| Rows of Staples<br>Staples per Reload | 4 (2 rows on either side of cut line)<br>4 rows x 8 staples/row = 32 total<br>(30mm)<br>4 rows x 11 staples/row = 44 total<br>(45mm) | 6 (3 rows on either side of cut line)<br>6 rows x 8 staples/row = 48 total<br>(30mm)<br>6 rows x 11 staples/row = 66 total<br>(45mm) | 4 (2 rows on either side of cut line)<br>4 rows x 9 staples/row = 36 total<br>(35mm) |
| Articulation | Yes (max 45°) | Yes (max 45°) | Yes (max 50°) |
| Single Patient Use | Yes | Yes | Yes |
| Disposable<br>Identification of<br>materials of implant<br>(staple) and tissue<br>cutting component<br>(knife) | Yes<br>Staple- Titanium<br>Knife- Stainless Steel | Yes<br>Staple- Titanium<br>Knife- Stainless Steel | Yes<br>Staple - Titanium<br>Knife - Stainless steel |

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Via the below listed tests, qualitative and quantitative data were obtained and used to compare the Signia™ Small Diameter Reloads to primary predicate Endo GIA™ Auto Suture™ Universal Articulating Loading Units and reference predicate Echelon Flex™ Powered Vascular Stapler with Advanced Placement Tip and Endopath Echelon™ White Reload for Advanced Placement Tip.

The design differences were found to not affect the substantial equivalence through applicable design verification activities and risk analysis that showed continued conformance to applicable technical design specifications and performance requirements, applicable medical device performance standards, and other nonclinical testing.

#### Tests performed to evaluate and compare technological and performance characteristics:

- 1. Functional performance test Bench and Animal (Acute)
- a. Bench tests
- i. Visual inspection
- ii. Force to load, rotate, and lock reload
- iii. Stapler handle compatibility
- iv. Knife cut
- v. Staple formation in test media
- vi. Firing and retraction forces
- vii. Communications test with Signia™ Powered Handle
- viii. Trocar Insertion/Removal forces
- ix. Pneumo-seal leak rate
- x. Worst Case Ex vivo Burst Pressure including Veins
- b. Animal acute tests
- i. Tissue trauma
- ii. Grasping trauma
- iii. Hemostasis
- iv. Staple formation in intended tissue
- 2. Chronic survival testing in animal
- a. Chronic study of Signia™ Small Diameter Reload vs. Control (primary and reference predicates) staplers for Lobectomy in the Thorax of a Canine
- b. Chronic study of Signia™ Small Diameter Reload vs. Control (primary and reference predicates) staplers for Nephrectomy, Splenectomy, and Ovariohysterectomy in the Abdomen of a Porcine.
- 3. Usability Tests per IEC 62366
- 4. Biocompatibility tests per ISO 10993-1
- 5. Electrical Safety tests per IEC 60601-1
- 6. EMC/EMI tests per IEC 60601-1-2
- 7. Sterilization assessment per ISO 11135
- 8. Stability/Shelf-life studies

This premarket submission did not rely on the assessment of clinical performance data to demonstrate substantial equivalence.