Harmony P4 HD
Item #: 4R181Overview
BenefitsThe Harmony P4 HD (Heavy Duty) is rated for patient weights up to 330 lbs and is a line extension to our P4 mechanical vacuum pump line whose design is lighter, shorter and faster vacuum than existing pumps. The Harmony P4 HD also has vertical shock reducing pylon and torsion unit incorporated in addition to active vacuum volume management. The unique direct connection to the socket also eliminates any external tubing. With over 1" less clearance than other pumps more users can get fit with more foot options.
Harmony’s proven clinical benefits
- Limb volume management1
- Reduces pistoning between the limb and socket2
- Improves residual limb health3
- Helps improve balance, reduce risk of falls and improve walking4
1 Kahle et al. 2014, Sanders et al. 2011, Street et al. 2006, Goswami et al. 2003, Board et al. 2001
2 Darter et al. 2016, Kahle et al. 2014, Kahle et al. 2013, Beil et al. 2002
3 Kahle et al. 2014, Hoskins et al. 2014, Traballesi et al. 2012, Brunelli et al. 2009
4 Samitier et al. 2014, Kahle et al. 2014, Kahle et al. 2013, Ferraro et al. 2011
Specifications
| Activity Level | K2, K3, K4 |
|---|---|
| Material | Aluminum, Titanium |
| Maximum Body Weight | 110 - 330 lbs (50 - 150 kg) |
| Clearance Height | 4 1/2 in (114 mm) |
| Part Weight | 20.8 oz (590 g) |
| Build Height | 115 mm |
Documents
LLP Prosthetist Documentation
Reimbursement: Documentation Guide
Reimbursement
PDF Document | Published: Apr 17, 2023
4R180 Harmony P4 | 4R181 Harmony P4 HD - Instructions for Use
Instructions for Use
PDF Document | Published: Apr 5, 2022
4R180 Harmony P4 | 4R181 Harmony P4 HD - Specification Sheet
Product Information
PDF Document | Published: Sep 1, 2017
Clinical Research Summary: The Benefits of Vacuum Compared to Other Suspension Materials
The Benefits of Vacuum Compared to Other Suspension Materials: View a summary of studies comparing vacuum suspension to pin and suction suspension.
Product Information
Vacuum Studies Bibliography
Harmony Vacuum System Clinical Studies Bibliography: View a complete list of clinical studies for the Harmony Vacuum System
Product Information
PDF Document | Published: May 1, 2015