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Benefits
The Harmony P4 is a line extension to our mechanical vacuum pump line whose design is shorter and reaches vacuum faster than existing pumps. The Harmony P4 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

Harmony P4 Vacuum Pump

Item #: 4R180
Mechanical vacuum pump with Vertical Shock and Torsion
Product Details
Benefits
The Harmony P4 is a line extension to our mechanical vacuum pump line whose design is shorter and reaches vacuum faster than existing pumps. The Harmony P4 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

Technical Specifications
Activity Level K2, K3, K4
Material Aluminum
Maximum Body Weight 110 - 220 lbs (50 - 100 kg)
Clearance Height 4 1/2 in (114 mm)
Part Weight 16.4 oz (465 g)
Accessories
Spare Parts
Documents

4R180 Harmony P4 - Specification Sheet

Product Information: (EN)

Published Date: April 1, 2017

4R180 Harmony P4 - Instructions for Use

Instructions for Use: 647G1247 (EN/DE)

Published Date: March 1, 2017

Clinical Research Summary: The Benefits of Vacuum Compared to Other Suspension Materials

Product Information: (EN)

The Benefits of Vacuum Compared to Other Suspension Materials: View a summary of studies comparing vacuum suspension to pin and suction suspension.

Published Date: May 1, 2013

Clinical Research Summary: The Harmony: Early Fitting of Transtibial Amputees with Unhealed Residual Limb Wounds

Product Information: (EN)

The Harmony: Early Fitting of Transtibial Amputees with Unhealed Residual Limb Wounds: View a summary of studies on patients with unhealed ulcers/wounds who were fitted with Harmony.

Published Date: May 1, 2013

Vacuum Studies Bibliography

Product Information: (EN)

Harmony Vacuum System Clinical Studies Bibliography: View a complete list of clinical studies for the Harmony Vacuum System

Published Date: May 1, 2015

Harmony P3 System Fabrication of a TT Fitting - Technical Information 2.1.8

Product Information: 646T2_1_8 (EN)

Published Date: November 1, 2015