Clear hydrogel gel pad, Ø35 × 4 mm, balanced on a fingertip

TodoPocus Sterile Ultrasound Gel Pads, Ø35 × 4 mm, 50 Pack

$140 50 pads · $2.80 per pad · shipping and tax included

Freedom from Gel. One clear, sterile hydrogel pad takes the place of ultrasound gel on any linear scan: press it on, scan through it, lift it off with nothing to wipe away. It fits TodoPocus, Butterfly, Clarius and every other brand of linear probe.

  • Sterile, single-sealed
  • Latex-free
  • ISO 10993 tested
  • 5-year shelf life
  • Free Delivery to Supported Destinations
  • Tax & Duty Included (No Hidden Fees)
  • Shipping within 24 Hours
  • 100% Secure Payment & Data Protection
  • Return Unopened Boxes within 30 Days
  • Freedom from Rent.
  • Freedom from Cable.
  • Freedom from Platforms.

Freedom from Gel.

One Pad. Zero Gel. Zero Wipe-Down.

TodoPocus already freed your scanning from monthly fees, from cables and from a single operating system. The pad frees it from gel. Peel a sterile pad, press it on the skin and scan straight through it. Lift it off when you finish: no gel on the skin, the probe or the chair, and nothing to wipe away.

Gel per scan
0 ml
Stand-off
4 mm
Per pad
$2.80

One pad. Every linear scan.

Vascular access, nerve blocks, tendons, the thyroid, skin and nails, the face: wherever a linear probe works close to the surface, one sterile pad does all the coupling, without a drop of gel.

  • A clinician in navy scrubs and blue nitrile gloves holds a silver TodoPocus wireless linear probe on a clear TodoPocus gel pad on a patient's forearm while an IV catheter needle enters through the edge of the pad, with no ultrasound gel; a tablet by the bed shows a color Doppler image of a forearm vessel.

    Vascular access.

    Find the vein on color Doppler, then place the line with the pad still on: the catheter needle can pass through the hydrogel. Sterile coupling from the first look to the last.

  • Gloved hands perform an ultrasound-guided interscalene nerve block: a silver TodoPocus wireless linear probe rests on a clear TodoPocus gel pad on the side of the patient's neck inside a sterile blue drape, the block needle entering beside it; a tablet shows a B-mode image of the brachial plexus.

    Nerve blocks.

    Set the pad inside the sterile drape and leave it on for the whole block. The probe sits on hydrogel while the block needle enters through the pad or at its edge.

  • A clinician in blue nitrile gloves scans the tendons on the back of a young woman's wrist with a silver TodoPocus wireless linear probe resting on a clear TodoPocus gel pad, with no ultrasound gel; a tablet on an arm mount shows a B-mode image of a tendon.

    Tendons and small joints.

    On the wrist, hand and ankle, tendons run just under the skin. The 4 mm pad lifts the probe face so they land in a clearer band of the image, and it follows the curve of the joint.

  • A sonographer in blue nitrile gloves holds a silver TodoPocus wireless linear probe on a clear TodoPocus gel pad on the front of a patient's lower neck for a thyroid scan, with no ultrasound gel; a tablet on a cart beside the couch shows a B-mode image of a thyroid lobe.

    Thyroid and neck.

    The pad lies flush on the curve of the lower neck. Scan each lobe and the isthmus, lifting and re-placing the pad as you go, and finish with a clean collar.

  • A dermatologist holds a silver TodoPocus wireless linear probe on a clear TodoPocus gel pad draped over a patient's big toenail, with no ultrasound gel; a tablet beside the footrest shows a high-frequency B-mode image of a nail plate and nail bed.

    Skin and nail bed.

    Epidermis, dermis and the nail unit sit in the first few millimeters. Through the pad they move down into a clearer band, sharp at every boundary, and the hydrogel drapes over a curved nail in full contact.

  • A practitioner in blue nitrile gloves holds a silver TodoPocus wireless linear probe on a clear TodoPocus gel pad on a reclining client's lower cheek, with no ultrasound gel; a tablet beside the chair shows the TodoPocus FaceAtlas AI mid and lower face view with the skin, fat and SMAS layers marked.

    Aesthetic face.

    Chart the facial vessels before filler with the probe’s weight on hydrogel, not on the skin. It is the same coupling pad used with TodoPocus FaceAtlas AI.

Peel. Place. Scan. Lift.

Four moves from a sealed pad to clean skin, and not one of them needs a bottle.

  1. Rows of clear Ø35 mm gel pads on their backing film, the top film peeled back

    Peel.

    Open the seal and peel a pad from its liner. Each one is sterile and goes to one patient.

  2. A gloved fingertip presses a clear TodoPocus gel pad onto a forearm; the skin, fine hairs, a vein and a skin-marker line show sharp through the solid 4 mm gel.

    Place.

    Press it onto the skin over the target. It holds on its own, so both hands stay free.

  3. A clinician in blue nitrile gloves scans the tendons on the back of a young woman's wrist with a silver TodoPocus wireless linear probe resting on a clear TodoPocus gel pad, with no ultrasound gel; a tablet on an arm mount shows a B-mode image of a tendon.

    Scan.

    Bring the probe down onto the hydrogel and image in B-mode or color Doppler. The pad does all the coupling.

  4. Gloved fingers peel a clear TodoPocus gel pad off a patient's inner wrist in one piece, leaving the skin clean and dry; a silver TodoPocus wireless linear probe lies on a steel tray beside the arm.

    Lift.

    Peel it off in one piece, with nothing to wipe. Or press it down again on the next site.

4 mm between the probe and the skin.

Each pad is a clear hydrogel disc, Ø 35 mm across and 4 mm thick. On screen the pad fills the first 4 mm of depth, and the skin begins just below it.

4 mmØ 35 mm04812mmProbeGel pad, hydrogelEpidermisDermisSuperficial vesselsSubcutaneous fat
  1. 1Probe
  2. 2Gel pad, hydrogel
  3. 3Epidermis
  4. 4Dermis
  5. 5Superficial vessels
  6. 6Subcutaneous fat
Diameter
Ø 35 mm
Thickness
4 mm
Speed of sound
1520–1620 m/s
Acoustic impedance
1.5–1.7 × 106 Pa·s/m
Attenuation
≤ 0.1 dB/(cm·MHz)
Loss, 4 mm at 24 MHz
≤ 0.96 dB one way
Fig. 1Probe, gel pad and skin in section, with the pad’s readout. The scale reads depth from the probe face: the skin begins at 4 mm. Acoustic values at 35 °C.

Skin layers in a clearer band.

The pad holds the probe face 4 mm above the skin. Epidermis, dermis and superficial fat move down into a clearer band of the image, and every boundary between them reads sharp.1, 2

It carries sound like soft tissue.

At 35 °C the pad carries sound at 1520–1620 m/s, a range that brackets the 1540 m/s scanners build their image on, and its impedance of 1.5–1.7 × 106 Pa·s/m falls within the range of soft tissue. Attenuation holds at or below 0.1 dB/(cm·MHz), so 4 mm at 24 MHz costs no more than 0.96 dB one way.

Vessels stay round under color Doppler.

With the pad in between, the probe sits on hydrogel, not on skin, and the superficial vascular plexus stays open for color Doppler.1, 2 Corvino and colleagues found Doppler flow in 84% of focal skin lesions scanned through a gel stand-off pad; without the pad, 56%.3

Leave the pad in place for the injection: the needle goes through it into the skin below.

  1. 1

    EFSUMB Position Statement on Dermatologic Ultrasound. Alfageme F, Wortsman X, et al. Ultraschall Med 2021;42(1):39–47. Gel pads that separate the epidermis from the transducer, for an accurate read of the epidermis and no compression of the superficial vascular plexus. doi.org/10.1055/a-1161-8872

  2. 2

    Preliminary Experience in Transducer Preparation for Intraoral Imaging. Kripfgans OD, Chan H-L. J Ultrasound Med 2023;42(9). A solid gel pad set as a stand-off increases the distance between transducer and skin; pressing on soft tissue collapses the small superficial vessels and cuts Doppler velocity and power readings. doi.org/10.1002/jum.16224

  3. 3

    Utility of a gel stand-off pad in the detection of Doppler signal on focal nodular lesions of the skin. Corvino A, et al. J Ultrasound 2020;23(1):45–53. Peri- or intra-lesional flow: 84% with the pad, 56% without. doi.org/10.1007/s40477-019-00376-3

Sterile for every needle.

Every pad is sterile and sealed on its own. Open one per patient, leave it in place for color Doppler and for the injection, and let the needle pass through the hydrogel.

  • One seal, one patient.

    Each pad comes sterile in its own seal. Open a fresh one for every patient and every procedure; a box keeps for 5 years.

  • On through Doppler and the injection.

    Once placed, the pad holds its spot for the whole color Doppler survey and for the injection itself. It grips by itself, with no gel to top up.

  • The needle goes through.

    Choose the entry point by anatomy alone: the needle can pass through the hydrogel into the skin below, or enter at the pad’s edge.

  • Lift, re-place, clean skin.

    Peel the pad, move it to the next site and press it down again. When you lift it for good, the skin is ready for antisepsis with nothing to wipe off first.

What the guidance asks for.

Sterile, single-use gel for any scan that leads to a needle. Each TodoPocus pad is sterile and single-use, sealed on its own.

  1. CDCAlert, 2025

    Scans that prepare for or guide a percutaneous procedure, peripheral IV lines included, call for single-use gel that carries a sterile label.4

  2. AIUMOfficial statement, 2025

    When infection is a concern, sterile single-use packets come before nonsterile gel, and every procedure that passes a needle through tissue counts.5

  3. UKHSAGuidance, 2025

    Vascular access and every other ultrasound-guided procedure that takes a device through the skin call for sterile single-use gel.6

  4. CDC MMWR2022

    Gel that stays behind on the skin is hard to clear before the needle and gets in the way of adequate skin antisepsis.7

  1. 4

    Alert: Use Only Sterile Ultrasound Gel for Percutaneous Procedures. U.S. Centers for Disease Control and Prevention, Healthcare-Associated Infections, May 13, 2025. cdc.gov/healthcare-associated-infections/bulletins/outbreak-ultrasound-gel.html

  2. 5

    Guidelines for Cleaning and Preparing External- and Internal-Use Ultrasound Transducers and Equipment Between Patients as Well as Safe Handling and Use of Ultrasound Coupling Gel. American Institute of Ultrasound in Medicine, 2025 revision. aium.org official statement

  3. 6

    Good infection prevention practice: using ultrasound gel. UK Health Security Agency, updated January 30, 2025. gov.uk guidance

  4. 7

    Outbreak of Burkholderia stabilis Infections Associated with Contaminated Nonsterile, Multiuse Ultrasound Gel — 10 States, May–September 2021. Hudson MJ, et al. MMWR 2022;71(48). doi.org/10.15585/mmwr.mm7148a3

Priced like a sterile packet. Built like a stand-off.

At $2.80 a TodoPocus pad sits inside the price range of a sterile 20 g gel packet, and it costs less than a quarter of the median Aquaflex pad.

TodoPocus gel padØ35 × 4 mm, 50 pads Aquaflex gel padØ9 cm × 2 cm, 6 pads Sterile gel packet20 g, 48 packets Bottled gel0.25 L, 12 uses of 20 g
What it isSolid hydrogel discGel stand-off padSingle-use gelMulti-use gel
Stand-off4 mm, fixed20 mm, fixedGel layer, set by handGel layer, set by hand
SterileSterile, single-sealedListed non-sterileSterile, single-useNon-sterile, multi-use
After the scanLift off; nothing to wipeLift offWipe gel off the skinWipe gel off the skin
Price per use$2.80, shipping and tax included$12.17 median ($7.67–$49.25)$2.32 median ($1.25–$3.33)$0.22 median per 20 g
 Table 1Listed prices on US retail product pages. Aquaflex, 12 listings read 2026-11-13 (Hill Laboratories, G&L Medical Supplies, 3B Scientific, Medex Supply, AliMed, LL Medico, Grayline Medical ×3, Amazon ×3), box price divided by pads. Sterile 20 g gel packets, 8 listings read 2026-11-13 (bio-medical.com, WellBefore, SONO Supplies, Save Rite Medical, EDM Imaging, Precision Lab Works, Grayline Medical ×2). Bottled non-sterile gel, 7 listings read 2026-10-27, one use = 20 g. “Listed non-sterile”: G&L Medical Supplies and LL Medico listings.

Specifications.

Acoustic values at 35 °C. One-way loss through the 4 mm pad follows from its attenuation of 0.1 dB/(cm·MHz) or less.

Pad

Material
Clear hydrogel
Diameter
35 mm
Thickness
4 mm
Sterility
Sterile, single-sealed
Latex
Latex-free
Biocompatibility
ISO 10993 tested
Coupling gel
None needed

Acoustics at 35 °C

Speed of sound
1520–1620 m/s
Acoustic impedance
1.5–1.7 × 106 Pa·s/m
Attenuation
≤ 0.1 dB/(cm·MHz)
One-way loss, 4 mm at 7.5 MHz
≤ 0.3 dB
One-way loss, 4 mm at 15 MHz
≤ 0.6 dB
One-way loss, 4 mm at 24 MHz
≤ 0.96 dB

Box

Pads per box
50
Price
$140 ($2.80 per pad)
Shipping and tax
Included
Shelf life
5 years
Fits
Linear probes, any brand
Returns
Unopened boxes, 30 days

Fits every linear probe.

TodoPocus, Butterfly, Clarius or any other brand: the pad couples every linear probe, and one rule tells you how much of the face it covers.

A probe face up to 35 mm wide sits wholly on the pad. On a wider probe, the middle 35 mm of the face sits on the pad.

ProbeFace widthOn the pad
TodoPocus L24, L24 Pro18 mmThe whole face
TodoPocus L14, L14 Pro, L20, L20 Pro25 mmThe whole face
TodoPocus L10SH, L10H-Guide, D3 linear head40 mmThe middle 35 mm
TodoPocus L10W80 mmThe middle 35 mm
Clarius L20 HD325 mmfield of viewThe whole face
Clarius L7 HD338 mmfield of viewThe middle 35 mm
Clarius L15 HD350 mmfield of viewThe middle 35 mm
Butterfly iQ352 mmprobe widthThe middle 35 mm
Any linear probeAny widthThe whole face up to 35 mm; the middle 35 mm beyond
 Table 2Face widths: TodoPocus probe specifications on todopocus.com. Clarius L7, L15 and L20 HD3: field of view on the clarius.com scanner pages. Butterfly iQ3: probe dimensions 152 × 52 × 37 mm, Butterfly iQ3 user manual. Read 2026-11-13.

Questions at the bedside.

Scanning with the pad

Can the pad replace ultrasound gel completely?

Yes. The hydrogel forms the whole acoustic path between probe and skin. Press a pad on, set the probe on it and scan, with no gel on the skin, the pad or the probe.

Which exams is it for?

Any linear scan close to the surface: vascular access, nerve blocks, tendons and small joints, thyroid and neck, skin and nail bed, and aesthetic work on the face.

Which probes does it fit?

Every linear probe, whether it comes from TodoPocus, Butterfly, Clarius or any other brand. A probe face up to 35 mm wide sits wholly on the pad; on a wider probe, the middle 35 mm of the face sits on the pad.

Can the pad stay on during the injection?

Yes. Leave it in place for the color Doppler survey and for the injection; the needle can pass through the hydrogel into the skin below.

Does it work with color Doppler?

Yes. The probe’s weight goes onto the hydrogel instead of the skin, so the small vessels under the pad keep their shape for color Doppler. EFSUMB’s position statement on dermatologic ultrasound recommends gel pads for this reason: they keep the superficial vascular plexus uncompressed.

Can I lift the pad and put it back?

Yes. The pad grips the skin by itself, so no one has to hold it. Peel it off, move it to the next site and press it down again.

Does it follow curved areas?

Yes. The hydrogel follows the curve of the neck, the back of the wrist, a toenail or the cheek and stays in full contact.

What is left to clean after the scan?

Only the probe, with its usual wipe. Peel the pad away and the skin underneath is already clean, so antisepsis can start at once.

Box, specs and delivery

Is it sterile?

Yes. Every pad is sterile and sealed on its own, one pad per patient.

What is it made of?

Clear hydrogel. The pad is latex-free and ISO 10993 biocompatibility tested.

Why 4 mm?

Four millimeters of hydrogel raise the probe face, which moves the epidermis, the dermis and the fat beneath them into a clearer band of the image. The pad adds at most 0.96 dB of one-way loss at 24 MHz.

What are its acoustic properties?

At 35 °C: speed of sound 1520–1620 m/s, acoustic impedance 1.5–1.7 × 10⁶ Pa·s/m and attenuation of 0.1 dB/(cm·MHz) or less.

Is it the same pad used with TodoPocus FaceAtlas AI?

Yes. FaceAtlas AI facial scans use this same pad, and it works the same way on every other linear scan.

How does it compare with an Aquaflex pad?

The TodoPocus pad is Ø35 × 4 mm, sterile and single-sealed, at $2.80 per pad. Aquaflex pads measure Ø9 cm × 2 cm, and across 12 US retail listings read on 2026-11-13 they cost a median $12.17 per pad.

What does a box cost, and how long does it keep?

$140 for 50 pads, which is $2.80 per pad, with shipping and tax included and No Hidden Fees. Each box has a 5-year shelf life.

How fast does it ship, and can I return it?

Orders ship within 24 hours with free delivery to supported destinations. Unopened boxes can be returned within 30 days.

Freedom from Gel, 50 pads at a time.

$140 $2.80 per pad · shipping and tax included

Sterile, single-sealed, latex-free. Ships within 24 hours.

Check your probe