# K112305: Vigor a Low Speed Air Motor, Vigor C Low Speed Contra-Angle Handpieces, Vigor S Low Speed Straight Handpieces

- Pathway: 510(k) (Abbreviated)
- Applicant: Thunder Tiger Corp.
- Decided: Apr 17, 2012 after 250 days
- Product code: EGS (Handpiece, Contra- And Right-Angle Attachment, Dental)
- Device class: 1
- Regulation: 21 CFR 872.4200
- 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 K944711 (1995). 6 ancestors in all.
4 later devices descend from it; 1 cites it directly.
0 of 11 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K962540: E-Type Contra Angle Nac-E, Nsk Nakanishi, Inc. (1996) Summary page 1.
- K011061: Surgical Contra-Angel Handpieces Types WS-56E,WS-75E/KM,WS-92 E/3,Surgical Straight Handpieces Types, S-9, S-10, S-11, W&H Dentalwerk Buermoos GmbH (2001) Summary page 1.
- K990954: Elec-Mate, Models EX-6 Set, EX-6L Set, EX-30 Set, Nsk Nakanishi, Inc. (1999) Summary page 1.
- K972569: E-Type Speed Increaser Contra Angle, External Irrigation, Internal Irrigation, Nsk Nakanishi, Inc. (1997) Summary page 1.
- K944711: W&H Air Motor A25, A-Dec, Inc. (1995) Summary page 1.
- K974670: Athena 1:1 Contra Angle, Athena 4:1 Contra Angle, Athena 16:1 Contra Angle, Athena 64:1 Contra Angle, Athena 16-: Contre, Athena Technology, Inc. (1998) Summary page 1.

## Most influential descendants
- K141886: MDK Handpieces (2015), 3 descendants of its own
- K262144: DIAMED Handpiece;DIAMED Airmotor;DIAMED Airmotor Handpiece (2026), 0 descendants of its own
- K251388: Dental air-motor handpiece (TM-203B2, TM-203M4, TM-205B2, TM-205M4, TM-IS, TM-ES, TM-SG20, TM-X25, TM-BB, TM-IC, TM-RA41) (2026), 0 descendants of its own
- K202786: Dental Low-speed Handpieces and Accessories (2021), 0 descendants of its own

## Indications for use
The Vigor Series Low speed dental handpieces & Accessories are powered by either low speed air motor or electric micro-motor for teeth cutting, cavity and crown preparation, restorations and polishing teeth. The Vigor A Low Speed Air Motor is used in conjunction with accessories such as contra-angle, such as The Vigor C Low Speed Contra-Angle handpieces, and straight handpiece, such as The Vigor S Low Speed Straight handpieces. The motor contains chip air and water that help with removing debris from teeth cutting. The Low Speed Contra Angle Dental Handpiece that is intended for removing carious material, cavity and crown preparations, finishing tooth preparations, reducing hard tooth structures, restorations and polishing teeth. The Straight Handpiece contains chip air and water that help with removing debris from teeth cutting.

Source page: https://510kreport.com/device/K112305
Methodology: https://510kreport.com/methodology