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The 4R220 Dynamic Vacuum (DVS) is bridging the gap between valve and Harmony socket technology for transtibial fittings.
The 4R220=1 allows for more flexibility in alignment options compared to the 4R220 DVS pump.
4R220=1 scope of delivery:
Integrating innovative design with simplicity, the Dynamic Vacuum reduces the movement between the limb and socket associated with limb volume fluctuations.
The DVS pump connects to the specific DVS liner magnetically and a knee sleeve is used to seal the system. Vacuum is generated during walking and this elevated vacuum is maintained in both swing and stance phase as opposed to passive systems such as a one way valve that only generate suction during swing phase. This give the user enhanced control and fit during all phases.
| Article Number | 4R220 | 4R220=1 |
|---|---|---|
| Maximum Body Weight | 330 lbs (150 kg) | 330 lbs (150 kg) |
| Material | Aluminum | Aluminum |
| Build Height | 31 mm | 40 mm |
Instructions for Use
PDF Document | Published: Jul 10, 2020
Reimbursement
PDF Document | Published: Dec 2, 2024
Product Information
PDF Document | Published: Jul 1, 2016
Reimbursement: Toolkit
Reimbursement
PDF Document | Published: Feb 5, 2026
Reimbursement: Clinical Studies
Reimbursement
PDF Document | Published: Jan 23, 2025