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Compressible Microspheres for Embolization


Because experience matters

Terumo Interventional Oncology Division presents HydroPearl, a precise answer to a challenge in interventional oncology. HydroPearl are PEG (polyethylene glycol), biocompatible, compressible, non-drug-loadable and precisely calibrated embolisation microspheres. Available in a wide, color-coded range of sizes.

Due to its composition, HydroPearl offers excellent properties and a very tight calibration. HydroPearl microspheres are intended to occlude blood vessels for therapeutic or adjunctive purposes in: hypervascularized tumors; hepatocellular carcinomas; uterine fibroids; benign prostatic hyperplasia; peripheral arteriovenous malformations; tumors of the neck, torso and skeletal system; bleeding, trauma and pre-operative reduction of bleeding.


  • ​Hydrogel technology based formulation1
  • Tighter calibration2
  • Wide range of sizes
  • More resilient microspheres2

General specifications

​Volume of microspheres (ml)​2
​Volume of PBS (ml)​4
​Presentation​2 ml in syringe
​Core material​Poly-ethylene Glycol (PEG)
​Storage media​Phosphate buffered saline
​Catheter compatibility​≤ 0.041" for all sizes

Item specifications

HydroPearl sizes (μm)

Item referenceColour
75 ± 308HP2S75Orange
200 ± 758HP2S200Yellow
400 ± 758HP2S400Blue
600 ± 758HP2S600Red
800 ± 758HP2S800Green
1100 ± 758HP2S1100Purple

Please quote above item reference codes when placing an order.


HydroPearl is not available for sale in all countries. Please contact your Terumo local sales representative for more information. HydroPearl is cleared in the USA with indications for embolisation of arteriovenous malformations and hypervascular tumors, including uterine fibroids.

Polyethylene Glycol (PEG)
Data on file. Comparison with EmboSpheres, Merit Medical. Ref HPMCV-001.

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This webpage can include promotional content regarding one or several products of Terumo Europe, or some procedures concerning the use or implantation of such products. This webpage is exclusively intended for healthcare professionals and is in no event directed to the general public