# K971407: Jtech Commander and Algometer

- Pathway: 510(k) (Traditional)
- Applicant: J-Tech Medical, Inc.
- Decided: Apr 20, 1998 after 369 days
- Product code: HRW (Dynamometer, Nonpowered)
- Device class: 1
- Regulation: 21 CFR 888.1250
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
6 later devices descend from it; 1 cites it directly.
0 of 7 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K011964: Insight Millennium Plus (2001), 5 descendants of its own
- K023209: Insight Millennium Iii (2003), 4 descendants of its own
- K063447: Insight Discovery (2007), 1 descendant of its own
- K131094: Vimove (2014), 0 descendants of its own
- K123399: Myovision 3.0 Wirefree System (2013), 0 descendants of its own

## Indications for use
The JTECH Commander Algometer is a calibrated pressure or force stimulus device. It measures pressure applied by examiner to ¢licit a response for pain tolcrance, pain threshold and trigger point tenderness. It is also used to screen for finger strength.

Source page: https://510kreport.com/device/K971407
Methodology: https://510kreport.com/methodology