Product Description

Foot Impulse Technology with the A-V Impulse System was developed to mimic the natural physiological processes, which maintain the blood circulation in the legs and arms. Clinical trials, involving thousands of patients have been published confirming the benefits of the A-V Impulse System for:

  • DVT Prophylaxis
  • Edema Reduction and subsequent Reduction of Hospital Stay
  • Pain Management
  • Circulation Enhancement

Rapidly inflating the ImPad foot or hand cover in less than 0.4 seconds produces a high velocity surge of venous blood flow, improving venous return and arterial blood flow in the extremities.

In the deep veins, A-V Impulse System eliminates venous stasis, scours out vein valves and releases EDRF - critical for efficacious mechanical thrombo-prophylaxis.

A-V Impulse System has been recognized by the International Consensus Statement and awarded a Grade A recommendation for DVT prophylaxis in elective orthopedics. Additionally, A-V Impulse System is:

  • Natural, safe and effective without risk of bleeding
  • Suitable as sole or adjunctive prophylaxis
  • Effective with/without graduated compression stockings

A-V Impulse System can be applied to the upper or lower limb, and an under-cast application wrap is also available. After trauma, A-V Impulse System speeds recovery and reduces complications, leading to earlier discharge from hospital and return to work. A-V Impulse System after ankle fracture can reduce hospital stay by 30%.

Indication

Deep vein thrombosis prophylaxis, edema reduction, pain management, circulation enhancement

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Physician Support Materials
  • The AV-Impulse System Patient Information Booklet
  • Quick Guide to Clinical Evidence
  • Hand ImPad Brochure
  • Trauma Brochure
  • Take a Step Into Foot Impulse Technology

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Clinical References:
DVT -Prophylaxis
  • Mechanical prophylaxis of deep-vein thrombosis after total hip replacement a randomised clinical trial. Pitto RP, Hamer H, Heiss-Dunlop W, Kuehle J. J Bone Joint Surg Br. 2004 Jul;86(5):639-42. PubMed Abstract
  • Comprehensive deep venous thrombosis prevention strategy after total-knee arthroplasty. Ragucci MV, Leali A, Moroz A, Fetto J. Am J Phys Med Rehabil. 2003 Mar;82(3):164-8. Pubmed Abstract
  • Mechanical versus drug prevention of thrombosis after total hip endoprosthesis implantation. A randomised, controlled clinical study. Pietsch M, Kuehle J, Hamer H, Pitto R, Biomed Tech (Berl). 2003 Jul-Aug;48(7-8):07-12. Pubmed Abstract
  • Prevention of thromboembolic disease after non-cemented hip arthroplasty. A multimodal approach. Leali A, Fetto J, Moroz A. Acta Orthop Belg. 2002 Apr;68(2):128-34 Pubmed Abstract
  • Comparison of the use of the foot pump with the use of low molecular weight heparin for the prevention of deep vein thrombosis after total hip replacement. A prospective randomised trial. Warwick, D, Harrison, J, Glew, D, Mitchelmore A, Peters TJ, and Donovan J. J Bone Joint Surg (Am) 80(8):1158-1166, 1998. PubMed Abstract
  • Prophylaxis against deep-vein thrombosis in total hip replacement. Comparison of heparin and foot impulse pump Santori FS, Vitullo A, Stopponi M, Santori N, Ghera S. J. Bone Joint Surg. (Br) 76(4):579-583, 1994. PubMed Abstract
  • Measurement of femoral vein blood flow during total hip replacement. Duplex ultrasound imaging with and without the use of a foot pump. Warwick D, Martin AG, Glew D, Bannister GC J Bone Joint Surg Br 76(6):918-921, 1994. PubMed Abstract
  • The effectiveness of intermittent plantar venous compression in prevention of deep venous thrombosis after total hip arthroplasty. Bradley JG, Krugener GH, Jager HJ. J Arthroplasty 8(1):57-61, 1993. PubMed Abstract
  • The A-V Impulse System reduces deep-vein thrombosis and swelling after hemiarthroplasty for hip fracture. Stranks GJ, MacKenzie NA, Grover ML, Fail J. Bone Joint Surg. (Br) 74-B:775-778, 1992. PubMed Abstract
  • A venous foot pump reduces thrombosis after total hip replacement. Fordyce MJF, Ling RSM. J. Bone Joint Surg. (Br) 74-B:45-49,1992. PubMed Abstract
  • Thrombo-embolic prophylaxis in total knee replacement. Evaluation of the A-V Impulse System. Wilson NV, Das SK, Kakkar VV, Maurice HD, Simbert JG, Thomas EM, Nixon JE. J. Bone Joint Surg. (Br) 74-B:50-52, 1992. PubMed Abstract
Edema Management
  • The efficacy of the A-V Impulse system in the treatment of posttraumatic swelling following ankle fracture: a prospective randomized controlled study. Caschman J, Blagg S, Bishay M. J Orthop Trauma. 2004 Oct;18(9):596-601. PubMed Abstract
  • Effectiveness of the A-V Impulse hand pump. Ramesh, M, Morrissey, B, Healy, JB et al. J Bone Joint Surg (Br) 81(2):229-233, 1999. PubMed Abstract
  • Fastest reduction of posttraumatic edema: continuous cryotherapy or intermittent impulse compression? Stockle, U, Hoffmann, R, Schutz, M, et al. Foot and Ankle 18(7):432-438, 1997. PubMed Abstract
  • Promoting venous return in plaster cast by A-V impulse System. A preclinical study. Bulitta C, Kock HJ, Hanke J, Sievers KW, Schmit-Neuerburg KP. Unfallchirurgie 22(4):145-152, 1996.Article in German. PubMed Abstract
  • Clinical applications of a pneumatic intermittent impulse compression device after trauma and major surgery to the foot and ankle. Myerson MS and Henderson MR Foot and Ankle. 14(4):198-203, 1993. PubMed Abstract
  • Os alcis fractures: a randomised trial comparing conservative treatment with impulse compression of the foot. Erdmann, MW, Richardson, J, and Templeton, J . Injury 23(5): 305-307, 1992. PubMed Abstract
Arterial Disease
  • Improved walking ability and ankle brachial pressure indices in symotomatic peripheral vascular disease with intermittent pneumatic foot compression: a prospective controlled study with one year follow up. Delis, KT, Nicolaides, AN, Wolfe,JH, and Stansby, G. J Vasc Surg 31(4):650-661, 2000. PubMed Abstract
  • Effects of intermittent pneumatic compression of the foot on microcirculatory function in arterial disease. Abu-Own, A Cheatle, T, Scurr, JH and Coleridge Smith PD, Eur J Vasc Surg 7(5):488-492, 1993. PubMed Abstract
Intra-operative Use
  • Increasing circulation in the lower limb under general anesthesia using the A-V Impulse Sysem. Urayama H, Tanaka K, Fukui D, and Kawasaki S, Angiology 2003 Nov-Dec;54(6):691-4. Pubmed Abstract
  • The arteriovenous impulse system in total hip arthroplasty. Eidner G, Pohlmann G, Anders J, Grohmann G. Vasa. 1999 May;28(2):112-6. Pubmed Abstract
Pulmonary Embolism Prevention
  • Prevention of pulmonary embolism by a foot sole pump. Asano H, Matsubara M, Suzuki K, Morita S, Shinomiya K. J Bone Joint Surg Br. 2001 Nov;83(8):1130-2. Pubmed Abstract

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Patient Benefits
  • Clinically proven DVT prophylaxis without bleeding complications
  • Reduced pre and postoperative swelling after trauma with subsequent reduction in hospital stay
  • Reduced Pain
  • Enhanced circulation
  • Noninvasive and complication free
  • Simple to use
  • Virtually unrestricted access to the extremities

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Patient Support Materials
  • The AV-Impulse System Patient Information Booklet

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Testimonials

"Our clinical results confirm the efficacy of the A-V Impulse System in achieving equivalent if not superior results compared with chemical management"
Consultant Orthopedic Surgeon (Germany)

"A-V Impulse System offers a safe and effective thromboprophylaxis, especially in the period after injury or surgery when surgeons are concerned about bleeding that is associated with chemical prophylaxis. A-V Impulse System also offers a potential additional prophylaxis in combination with chemical methods in those patients at particularly high risk of VTE"
Consultant Orthopedic Surgeon (UK)

"In summary, our randomized controlled trial shows that the best prophylactic agent of DVT after THR in terms of efficacy and safety is pneumatic compression with foot pumps"
Consultant Orthopedic Surgeon, New Zealand

"The A-V Impulse System has been a critically important factor in the multi-factorial prophylaxis program for DVT/PE following THR and TKR here at the NY Center for Joint Replacement NYU/HJD Medical Center. They have helped patients, in a prospective program, to reduce postoperative DVT rate to <4%".
Dr Fetto, Consultant Orthopedic Surgeon, USA

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Web Resources
  1. www.a-vimpulsesystem.co.uk

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Contraindications

A-V Impulse System is contraindicated for patients where an increase of fluid to the heart may be detrimental, including some patients with congestive heart failure and those with pre-existing deep vein thrombosis, thrombophlebitis or pulmonary embolism. The device should be used with caution on the infected or insensitive extremity.

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