A revolutionary flow device for unparalleled accuracy and infection control

The preVent Pneumotach provides accurate results over the entire physiological range¹ in the most demanding applications... exercise, pulmonary function testing, and nutritional assessment.

Accuracy and Performance

Meets or exceeds ATS/ERS standards and specifications². The preVent Pneumotach passes the requirements of all 24 ATS waveforms.^3,4

Eliminates Valves, Hoses and Headgear

Small and lightweight, provides maximum comfort and ease of use through the entire test.

Simple Snap-in Setup

This design saves time and eliminates problems associated with more complex flow measuring devices. Easy replacement means infection control can be assured after each test.

Multiple Infection Control Options

Designed to eliminate infection control concerns the preVent pneumotach can be either:
- Disposable
- Reusable - Can be easily cleaned
- Used with a filter

Low Operational Costs

Minimal replacement costs if misplaced or broken. No wires or electronics to damage.

Fast Patient Throughput

Requires no calibration or warm-up between changes.

Specifications:

The Measurement Principle

Patent Numbers: #5,038,773 and #5,119,825

Flow Range: ± 18 L/sec (±1080 L /min)

Resolution Accuracy:
8.64 ml/sec ±3% or 50 ml, whichever is greater

Size: Length: 7.26 cm (3"), O.D.: 3.5 cm (1.375"),
Weight: 26 gm (0.9 oz)

Deadspace: Total: 39 ml

Resistance: <1.20 cm H20/L/sec @ 12 L/sec
(exceeds ATS/ERS specifications)

 

¹ MedGraphics White Paper: Assessment of the Medical Graphics CPX EXPRESS and CPX/D Automated Respiratory Gas Analysis Systems, Scott Walschlager M.S., David Edwards M.S.and Michael Berry Ph.D., Wake Forest University 1996

² Evaluation of a symmetrically disposed Pitot tube flowmeter for measuring gas flow during exercise. Journal of Applied Physiology, Volume 77, No. 6, 2659-2665, December 1994

³ Letter: MedGraphics Spirometry System with Disposable Pneumotach, Robert Crapo M.D., LDS Hospital, April 1991

⁴ Test Report: MedGraphics Spirometry System with Disposable Pneumotach, Robert L. Jensen Ph.D., Robert O. Crapo M.D. and Steven L. Eerlin, RPFT, LDS Hospital, April 1991

Bio-Burden: Testing conducted by ViroMED Laboratories following AAMI Technical Information Report (TIR) No 12. Pneumotach shall be cleaned following the instructions provided in the user manual.

Bio-Compatibility: Testing conducted by ViroMED Laboratories following ISO 10993-10 (Irritation & Sensitization) and ISO 10993-5 (Cytotoxicity). Results of tests found the preVent pneumotach to be non-irritating/sensitizing and non-cytotoxic. Complete results available upon request.

  

 

Exercise Testing
with
Mask

 

Pediatric
Pulmonary
Function

 

Nutritional
Assessment

 

Exercise Test
with
Mouthpiece