Non-Surgical · Focused Ultrasound · Device Checks

HIFU Genuine Cartridge Check

What a patient can see, read and ask for before the first line

Gangnam, Seoul | Board-certified plastic surgeon, Dr. Jonghwan Choi
KHIDI-registered for international patients · Apgujeong Rewind

HIFU Genuine Cartridge Check HIFU Genuine Cartridge Check HIFU Genuine Cartridge Check HIFU Genuine Cartridge Check HIFU Genuine Cartridge Check HIFU Genuine Cartridge Check
Verify

HIFU genuine cartridge check

How do I know a HIFU cartridge is genuine?

The short answer

Look at three things before the first line is placed: the label on the transducer itself, the transducer panel on the device screen, and the documentation for the unit in the room. On Ultherapy Prime, the only focused-ultrasound device at Rewind Plastic Surgery, the manufacturer's instructions describe a label carrying the transducer type, a unique serial number, a part number, the date of manufacture and an expiry date, plus a screen panel showing how many lines the transducer has left out of its total capacity. A cartridge you can read on both counts is a cartridge you can check.

Sources: the instructions for use that Merz Aesthetics publishes for Ultherapy Prime (US edition) and Rewind's own device documentation. This page describes checks on one device and makes no statement about any provider.

Cartridge is the word most patients use. The manufacturer calls the part a transducer: the head that slides into the handpiece, holds the focusing element and fixes the depth at which the energy lands. It is also the part that gets used up, so most questions about genuine HIFU turn out to be questions about this one component.

This page is narrower than the overview. It stays with a single task: what you can verify for yourself at a focused-ultrasound appointment, what only the machine can verify, and what to ask when an item on the list is missing. Background on the platform itself sits on the Ultherapy Prime page.

Ultherapy Prime console with two DeepSEE transducers resting on the tray
Fig. 01 · Ultherapy Prime with two transducers on the tray; these are the cartridges patients ask about (manufacturer image)
Look

Where to look

Four places a genuine HIFU session leaves evidence

None of these needs technical knowledge. Each can be seen from the treatment chair or on the way in, and each belongs to the device Rewind actually treats with.

check 01
The plaque on display
Rewind displays a plaque bearing the Ultherapy Prime name and logo, identifying the clinic as a genuine-device clinic for that platform.
check 02
The console in the room
The unit carries the Merz Aesthetics name and shows an ultrasound image of the tissue before energy goes in. Its name should match the device written on your plan.
check 03
The transducer label
Printed on top of each transducer: its name, treatment frequency and depth, a unique serial number, a part number, the manufacture date and an expiry date.
check 04
The transducer panel on screen
The screen names the connected transducer and the lines it has left out of its full capacity, beside a running tally of lines delivered in your session.
Read

Reading the transducer

How to read a HIFU transducer label and line counter

The manufacturer's instructions for Ultherapy Prime set out what the label and the screen display. The four points below follow that document. A unit in Korea may lay the screen out a little differently, so ask the operator to point to each item as you go.

01Label

What the label on a HIFU transducer carries

The transducer name (DeepSEE on this platform), a type code such as DS 7-3.0 that gives the frequency in megahertz and the focal depth in millimetres, a unique serial number, a part number and the date of manufacture. A label you can read in full is the first thing to ask for.

02Capacity

HIFU lines remaining against the transducer's capacity

Each transducer holds a fixed number of treatment lines. The screen places the lines still available beside that total, so a transducer near the end of its life shows up before your plan begins.

03Empty

When a HIFU transducer runs out of lines

Once the remaining count reaches zero, the system halts and displays a message asking for the transducer to be replaced. A change of transducer during a session is therefore an ordinary event, and the replacement should show its own label and its own count.

04Dates

Expiry dates and sealed pouches for HIFU transducers

The manual tells operators to check the expiry date before use, never to use an expired transducer, and to keep new transducers in their sealed pouches until needed. An opened pouch tells you the part is new; the date on the label tells you it is still current.

Ultherapy Prime screen with the transducer panel and line counter
Fig. 02 · The transducer panel at the left of the screen lists the connected transducer and its line count (manufacturer image)
Rewind

Why here

Why Rewind walks patients through the HIFU cartridge check

A patient who knows what to look at asks sharper questions, and a clinic running a single focused-ultrasound platform can explain every item on the list without qualification.

01Platform

One HIFU device, so one set of checks

Focused ultrasound at Rewind runs only on Ultherapy Prime. The plaque, label and screen described here make up the whole list for this clinic; no second ultrasound system with different paperwork sits beside it.

02Count

A HIFU line count agreed before the transducer goes in

Dr. Jonghwan Choi, a board-certified plastic surgeon, examines the face and then sets the plan size and depths. With the number agreed in advance, the running tally on screen becomes something you can follow line by line.

03Energy

Microwave and radiofrequency kept apart from HIFU

Max Wave works with microwave energy; Thermage FLX and Volnewmer use radiofrequency. Each has its own hardware. Rewind names the device and its energy on every plan, so the check you carry out matches the treatment you booked.

Dr. Jonghwan Choi discussing a treatment plan with a patient at Rewind
Fig. 03 · Device and line count are agreed across the consultation desk
Visit

In the treatment room

When the HIFU checks happen during a Rewind visit

Ultherapy Prime unit by Merz Aesthetics on its cart

Fig. 04 · The Ultherapy Prime unit by Merz Aesthetics (manufacturer image)

Private lounge room at Rewind Plastic Surgery in Apgujeong

Fig. 05 · A private lounge room on the clinic floors

Rewind is on the fourth and fifth floors of the Richro Building in Apgujeong, Gangnam, Seoul. The plaque can be seen on arrival. The examination comes next, where Dr. Choi confirms that focused ultrasound suits the concern and writes the plan in lines. In the device room, before the first line, is the moment to look at the transducer label and the screen panel; once treatment starts, the running count keeps pace with the session.

HIFU platform: Ultherapy Prime
Manufacturer: Merz Aesthetics
Label: serial, part number, dates
Screen: lines left and lines delivered
Plans written in 300 or 600 lines
By appointment; closed Thursday and Sunday

Anaesthesia and session length are not published for Ultherapy Prime at Rewind, so raise both when you book. The manufacturer's manual also describes the device keeping an encrypted log of each session's parameters, which only the manufacturer's safety staff can open when a reported adverse event is being investigated.

Ultherapy Prime genuine-device clinic plaque displayed at Rewind Plastic Surgery

Ultherapy® Prime · Genuine-device clinic plaque

Photographed as it hangs at Rewind. Set the name on the plaque beside the console you are treated on and the device printed on your plan; all three should agree.

Cost

Pricing

What a genuine Ultherapy Prime HIFU plan costs at Rewind

Rewind publishes two Ultherapy Prime plans. Each figure is tied to a line count, and the line count is exactly what the screen lets you verify. Price and check therefore work together: the number of lines you pay for is the number you can watch being delivered.

Ultherapy Prime, 300 linesDelivered lines shown on the running counter
₩1,300,000
Ultherapy Prime, 600 linesWider coverage; zones set at examination
₩2,500,000

Listed prices exclude VAT. Where anaesthesia is used, its fee already sits inside the listed figure. A plan pairing Ultherapy Prime with a second lifting device is priced once the doctor has examined the face.

Fit

Suitability

When the HIFU cartridge check matters, and when the real question is the face

A verified transducer settles which part is in use. Whether focused ultrasound should be used at all is a separate judgement, and Dr. Choi declines it when the examination says no.

Patients for whom the HIFU check is worth doing

  • First-time HIFU patients who are unsure how a plan is counted
  • Returning patients setting a new plan beside an earlier treatment from a previous provider
  • Anyone who wants the delivered line count written into their own records
  • Travellers holding a HIFU quote that names no device and no count

Faces where no HIFU transducer is the right tool

  • A jaw line and neck that have dropped well down, where the doctor sets out surgical routes
  • Faces with little soft tissue left, where tightening can deepen hollows
  • Under-chin fullness that turns out to be mostly fat
  • An area treated recently with filler, threads or another energy device
  • Pregnancy or breastfeeding, a skin infection over the area, or an implanted electronic device
After

Recovery

After a HIFU session with a checked transducer

Checking the hardware changes nothing about recovery. Rewind gives the same brief instructions after every device-lifting session.

Same day
Carry on, minus the heat
Your normal routine can resume at once. Sauna, strenuous exercise and alcohol wait until the next day.
Day 1–2
Hands off
Do not rub or press the treated skin. Bruising or swelling, if it appears, settles over a few days.
Weeks after
Moisturiser and sunscreen
Both, every day, while the skin responds.
Months on
Reading the result
Rewind records device-lifting results lasting six months to over a year, depending on skin and plan. Keep a note of the lines delivered for the next consultation.

Genuine hardware leaves the recognised effects of focused ultrasound in place: redness, swelling, bruising and tenderness, with numbness, altered sensation and nerve irritation reported less often. A 2017 case series and literature review catalogues these complications. List every injection, thread and device session the area has had, so the doctor can weigh them before choosing depths.

Doctor

Professional

Every Ultherapy Prime plan at Rewind is written by one board-certified plastic surgeon, who also sees the patient at follow-up and can account for the line count on the day it was delivered.

Dr. Jonghwan Choi, board-certified plastic surgeonRewind,
Dr. Jonghwan Choi presenting at an academic session
Fig. 06 · Dr. Choi presenting at an academic thread-lifting session

Rewind's Doctor

Dr. Jonghwan Choi Medical Director

The plan, the count and the follow-up
come from the same doctor.

A board-certified plastic surgeon focused on anti-aging lifting, whose craniofacial background shapes how tissue layers and treatment depths are read.

Board-certified plastic surgeon (Plastic Surgery)
10 peer-reviewed publications
Medical Director, Rewind Plastic Surgery
Korean Society of Plastic & Reconstructive Surgeons
Former chief director, Apgujeong Y&T Plastic Surgery
Korean Society for Aesthetic Plastic Surgery
J Craniofac Surg · JKMS · Arch Craniofac Surg
Korean Cleft Palate-Craniofacial Association
Ask

Questions

HIFU genuine cartridge check: questions patients ask

How can I tell whether a HIFU cartridge is genuine?
Read the label on the transducer and the panel on the screen. For Ultherapy Prime, the manufacturer's manual lists a label with the transducer type, a unique serial number, a part number, the manufacture date and an expiry date, and a screen panel showing lines left against total capacity. Ask to see both before treatment starts.
Are HIFU cartridges single use?
On Ultherapy Prime they are not single-patient parts. The manufacturer's manual treats each transducer as a component with a fixed line capacity that is cleaned between procedures and replaced when its remaining count reaches zero or its expiry date passes. The lines left and the date on the label are what to check.
Can the device itself detect a transducer that is not authorised?
According to the manufacturer's instructions, yes. Ultherapy Prime has a dedicated error message for a connected transducer it does not recognise as authorised, and it asks for the part to be replaced before treatment goes on. Patients cannot run this check themselves, so the device and its documentation matter as much as the part.
What does the plaque at Rewind show?
It carries the Ultherapy Prime name and logo and identifies Rewind as a genuine-device clinic for that platform. Because it is displayed in the clinic, you can compare the name on it with the console in the treatment room and with the device printed on your plan.
What if the line count on screen does not match my plan?
Ask before the session continues. Rewind plans Ultherapy Prime in 300 or 600 lines, and the screen keeps a running total of lines delivered. A gap can have a clinical reason, such as a zone the doctor chose to leave untreated at examination, and it can be explained on the spot.
Does a genuine transducer take away the risks of HIFU?
It removes one source of doubt and leaves the known effects of focused ultrasound in place. Published reports describe redness, swelling, bruising, tenderness, numbness and altered sensation, and less often nerve irritation. Placement, depth choice and whether the face suits energy lifting still decide most of the outcome.
Is Max Wave checked the same way as HIFU?
Max Wave is a microwave device with surface cooling, quoted in joules, and it runs on its own hardware. At Rewind, focused ultrasound means Ultherapy Prime alone, so the transducer checks on this page apply to that platform and to no other device on the menu.
Can I check the transducer if I am only in Seoul for a few days?
Yes. The checks happen in the treatment room on the day itself. Say when you book that you would like to see the transducer label and the screen panel before the first line. Rewind consults Monday, Tuesday, Wednesday and Friday from 10:00 to 19:00 and Saturday from 10:00 to 16:00.
Voices

Google Reviews

What our patients say.

G 5.0 ★★★★★ 51 Google reviews · Rewind Plastic Surgery, Apgujeong — live-synced from Google Business Profile
★★★★★

Came to REWIND to get my facial treatment and i'm absolutely obsessed about it💞 the doctor is so kind and is an expert! Everyone must visit!

YunHee Hong2 weeks ago
★★★★★

There are just way too many cosmetic clinics in Korea and I'm so happy I found Rewind Clinic in Gangnam. Dr. Choi was so kind and patient while explaining the different face-lifting options, from threads to mini-lifts to deep-plane lifts…

J. S.5 months ago
★★★★★

I found Rewind clinic through a Korean chat forum and many local clients highly recommended it. The clinic is brand new, featuring large, clean rooms and many private waiting areas so it doesn't give off that "factory" clinic vibe. All the…

J. Siou5 months ago
★★★★★

Really nice environment. Doctor is easy to communicate and understands my visions. Waited two weeks to make a review and I confirm the results exceeded my expectations and I am super happy with it. Can't wait to come back!! :))

Kristie Chu5 months ago
★★★★★

I received a thread lift at Rewind Plastic Surgery. The clinic was clean and the atmosphere was comfortable. The consultation was thorough, and I felt confident because they kindly explained everything tailored to my facial condition. They…

한주연2 weeks ago · Translated by Google
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Location
Apgujeong, Gangnam
4F & 5F, Richro Building,
812 Nonhyeon-ro,
Gangnam-gu, Seoul
Hours
Mon·Tue·Wed·Fri 10:00–19:00
Sat 10:00–16:00
Closed Sundays & Thursdays
Lunch 12:00–13:00
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Reg. M-2025-01-08-09288

Scientific evidence

Research on focused-ultrasound results and complications

None of these papers studies whether a transducer is genuine. They are listed for what correctly delivered focused ultrasound has been measured to do, including in Asian patients, how its effect on skin compares with radiofrequency, and what has gone wrong in reported cases. None was carried out at Rewind, and none predicts an individual result.