# K241855: SB Knife Jr2 (MD-47702 and MD-47702L)

- Pathway: 510(k) (Traditional)
- Applicant: Sb-Kawasumi Laboratories, Inc.
- Decided: Mar 26, 2025 after 272 days
- Product code: KNS (Unit, Electrosurgical, Endoscopic (With Or Without Accessories))
- Device class: 2
- Regulation: 21 CFR 876.4300
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K190621 (2019). 1 ancestor in all.
No later device cites it as a predicate yet.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K190621: SB Knife/Short type, SB Knife/Standard type, SB Knife/Jr type, SB Knife/Jr type - Long, Sumitomo Bakelite Co., Ltd. (2019) Summary page 6.

## Indications for use
The SB Knife Jr2 is a single-use sterile Electrosurgical Knife (Model Numbers: MD-47702, MD-47702L). This device is designed to be used with Olympus and ERBE Electrosurgical monopolar HF generators, connectors and patient grounding plates to cut tissue including Zenker’s diverticulum within the digestive tract using high-frequency current.

Source page: https://510kreport.com/device/K241855
Methodology: https://510kreport.com/methodology