# K090009: THD Slide One

- Pathway: 510(k) (Special)
- Applicant: Thd Spa
- Decided: Jan 28, 2009 after 26 days
- Product code: JAF (Monitor, Ultrasonic, Nonfetal)
- Device class: 2
- Regulation: 21 CFR 892.1540
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K930458 (1995). 6 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 8 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K081429: THD Slide, Thd Spa (2008) Summary page 2.

## Most influential descendants
- K141657: THD Revolution (2015), 0 descendants of its own

## Indications for use
The THD Slide One Doppler guided proctoscope is a system for the surgical treatment of the hemorrhoids of second and third degree. It is based on Transanal Hemorrhoidal Dearterialization technique guided by a Doppler probe. The Doppler system, placed inside the THD Evolution Doppler device, is used to detect the terminal branch of the superior hemorrhoid artery, in order to perform ligation with a THD proctoscope, sutures and a needle holder included in the THD Kits. The THD Slide One is to be used by physicians in hospitals, clinics, and physician's offices by prescription or doctor's orders.

Source page: https://510kreport.com/device/K090009
Methodology: https://510kreport.com/methodology