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Harmony P4 HD

Item #: 4R181

Harmony P4 Heavy-Duty vacuum pump with vertical shock and rotation

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Overview

Benefits
The 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