# K231423: Combo Electrotherapy Device (Models: R-C101C, R-C101D, R-C101F, R-C101G, F100, MINI-TENS-COMB, RC101I, TENS3500)

- Pathway: 510(k) (Traditional)
- Applicant: Shenzhen Roundwhale Technology Co., Ltd.
- Decided: Jan 22, 2024 after 250 days
- Product code: NUH (Stimulator, Nerve, Transcutaneous, Over-The-Counter)
- Device class: 2
- Regulation: 21 CFR 882.5890
- 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 K192087 (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)
- K192087: Combo Electrotherapy Device, Shenzhen Roundwhale Technology Co., Ltd. (2019) Summary page 8.

## Indications for use
Over-The-Counter Use: a. Model R-C101C is indicated for OTC TENS and OTC EMS. OTC TENS(NUH) It is used for temporary relief of pain associated with sore and aching muscles in the neck, shoulder, back, upper extremities (arm) and lower extremities (leg) due to strain from exercise or normal household work activities. OTC EMS(NGX) This mode is designed to be used for stimulate healthy muscles in order to improve and facilitate muscle performance. b. Model R-C101D is indicated for OTC TENS. It is used for temporary relief of pain associated with sore and aching muscles in the neck, shoulder, back, upper extremities (arm) and lower extremities (leg) due to strain from exercise or normal household work activities. c. Model R-C101F is indicated for OTC TENS and OTC EMS. OTC TENS(NUH) It is used for temporary relief of pain associated with sore and aching muscles in the neck, shoulder, back, upper extremities (arm) and lower extremities (leg) due to strain from exercise or normal household work activities. OTC EMS(NGX) This mode is designed to be used for stimulate healthy muscles in order to improve and facilitate muscle performance. d. Model R-C101G is indicated for OTC TENS and OTC EMS. OTC TENS(NUH) It is used for temporary relief of pain associated with sore and aching muscles in the neck, shoulder, back, upper extremities (arm) and lower extremities (leg) due to strain from exercise or normal household work activities. OTC EMS(NGX) This mode is designed to be used for stimulate healthy muscles in order to improve and facilitate muscle performance. e. Model F100 is indicated for OTC TENS and OTC EMS. OTC TENS(NUH) It is used for temporary relief of pain associated with sore and aching muscles in the neck, shoulder, back, upper extremities (arm) and lower extremities (leg) due to strain from exercise or normal household work activities. OTC EMS(NGX) This mode is designed to be used for stimulate healthy muscles in order to improve and facilitate muscle performance. f. Model MINI-TENS-COMB is indicated for OTC TENS. OTC TENS(NUH) It is used for temporary relief of pain associated with sore and aching muscles in the neck, shoulder, back, upper extremities (arm) and lower extremities (leg) due to strain from exercise or normal household work activities. g. Model R-C101I is indicated for OTC TENS. OTC TENS(NUH) It is used for temporary relief of pain associated with sore and aching muscles in the neck, shoulder, back, upper extremities (arm) and lower extremities (leg) due to strain from exercise or normal household work activities. h. Model TENS3500 is indicated for OTC TENS. OTC TENS(NUH) It is used for temporary relief of pain associated with sore and aching muscles in the neck, shoulder, back, upper extremities (arm) and lower extremities (leg) due to strain from exercise or normal household work activities. Prescription Use: a. Model R-C101D is indicated for Rx TENS. Rx TENS(GZJ) 1)Symptomatic relief of chronic intractable pain; 2)Post traumatic pain; 3)Post surgical pain; b. Model R-C101G is indicated for Rx TENS and Rx EMS. Rx TENS(GZJ) 1)Symptomatic relief of chronic intractable pain; 2)Post traumatic pain; 3)Post surgical pain; Rx EMS(IPF): 1)Relaxation of muscle spasm; 2)Increase of local blood flow circulation: 3)Prevention or retardation of disuse atrophy: 4)Muscle re-education: 5)Maintaining or increasing range of motion; 6)Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis. c. Model R-C101C, is indicated for Rx TENS and Rx EMS. Rx TENS(GZJ) : 1)Symptomatic rlief of chronic intractable pain; 2)Post traumatic pain; 3)Post surgical pain; Rx EMS(IPF): 1)Relaxation of muscle spasm; 2)Increase of local blood flow circulation: 3)Prevention or retardation of disuse atrophy: 4)Muscle re-education: 5)Maintaining or increasing range of motion; 6)Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis. d. Model F100 is indicated for Rx TENS and Rx EMS. Rx TENS(GZJ) : 1)Symptomatic relief of chronic intractable pain; 2)Post traumatic pain; 3)Post surgical pain; Rx EMS(IPF): 1)Relaxation of muscle spasm; 2)Increase of local blood flow circulation: 3)Prevention or retardation of disuse atrophy: 4)Muscle re-education: 5)Maintaining or increasing range of motion; 6)Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis. e. Model MINI-TENS-COMB is indicated for Rx TENS. Rx TENS(GZJ) : 1)Symptomatic relief of chronic intractable pain; 2)Post traumatic pain; 3)Post surgical pain; f. Model R-C101F is indicated for Rx TENS and Rx EMS. Rx TENS(GZJ) : 1)Symptomatic relief of chronic intractable pain; 2)Post traumatic pain; 3)Post surgical pain; Rx EMS(IPF): 1)Relaxation of muscle spasm; 2)Increase of local blood flow circulation: 3)Prevention or retardation of disuse atrophy: 4)Muscle re-education: 5)Maintaining or increasing range of motion; 6)Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis. g. Model R-C101I is indicated for Rx TENS. Rx TENS(GZJ) : 1)Symptomatic relief of chronic intractable pain; 2)Post traumatic pain; 3)Post surgical pain; h. Model TENS3500 is indicated for Rx TENS. Rx TENS(GZJ) : 1)Symptomatic relief of chronic intractable pain; 2)Post traumatic pain; 3)Post surgical pain;

Source page: https://510kreport.com/device/K231423
Methodology: https://510kreport.com/methodology