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Peritron Perineometer
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Precision Perineometer for accurate assessment and super sensitive feedback.  

    

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Peritron is a hand-held clinical Perineometer intended for assessing the strength of pelvic floor (PF) muscles and teaching pelvic floor exercises. Both vaginal and anal sensors are available.

In operation, air pressure in the sensor caused by a pelvic floor contraction is transferred by a tube to the Readout Unit where it is displayed in several ways.

Peritron provides most of the functionality of Personal Computer-based systems at a fraction of the price.

 ASSESSMENT | PRESSURE PROFILES | FEEDBACK | SENSORS | CLINICAL STUDIES | TECHNICAL

 

ASSESSMENT

Peritron displays the value of the contraction numerically in cm water.

23

The value is updated once per second during the contraction.

Peritron can recall the peak and average values of the contraction and also its duration. Please refer to Quality of the Contraction below.

Normal values

Generally speaking, a vaginally measured contraction value of less than 20cm water indicates that strengthening pelvic floor exercises are advised.

Normal anal resting pressures are around 50cm water. Cough usually adds 40 and squeeze 100. These correlate well with traditional measuring techniques using multi-lumen catheters.

PRESSURE PROFILES

If successive readings are jotted down on a photocopy of the template provided in the Handbook a pressure profile curve may be sketched quickly and easily.

Many Practitioners find this picture of the contraction particularly useful for patient education.

Rdg
cm water
Rdg
cm water
Rdg
cm water
1
20
4
22
7
10
2
32
5
25
8
1
3
29
6
17
9

 

Readings taken during a contraction

Sketch of Profile

Quality of the Contraction

A strong, sustained contraction is better than a brief, weak one. To help the clinician assess the quality of the contraction, at the press of a button Peritron will recall the peak and average readings as well as the duration of the contraction in seconds.

A STRONG AND SUSTAINED CONTRACTION has similar PEAK and AVERAGE readings. Example vaginal contraction:

AN UNSATISFACTORY CONTRACTION typically has widely differing PEAK and AVERAGE readings. For example:

FEEDBACK

For teaching pelvic floor contractions the display may be switched to 'progressing bars' that provide 'better-worse' feedback. The more bars that are lit, the stronger the contraction.

I I

I I I I

I I I I I I

weak
getting better
strong

Peritron's super-sensitive response picks up the first 'flickers' of a contraction. This feedback is really appreciated as patients generally need all the encouragement they can get.

Peritron's feedback display has three ranges, that is, degrees of difficulty.

The first, most sensitive range is for learning the exercises; the highest range will challenge the most accomplished pelvic floor athlete!

SENSORS

The design of our Vaginal and Anal Sensors reflects our many years of experience designing and manufacturing medical products.

Our sensors may be used with any Perineometer.

We always welcome inquiries to supply Sensors to other Perineometer Manufacturers on an OEM basis.

Peritron and PFX use the same Sensors. Thus the sensor of a patient's PFX home exerciser may be brought to the clinic for assessment with Peritron.

Hygenic and Biocompatible. The contact surfaces of our sensors are of seamless medical grade silicone elastomer, a material chosen for its high biocompatibility. The thin wall of the silicone sheath transmits the pressure faithfully and its performance is temperature independent.

There are no joins or crevices to trap contaminents. Toxicological testing has shown the sensors to be biologically inert.

In contrast, sensors of most other manufacturers have a latex sheath. The FDA require latex products to carry a warning against possible allegic reactions.

Our Sensors have been approved for safety and efficacy by the USA FDA and carry class 2 CE mark classification in Europe.

Sensitive, repeatable response. The vaginal sensor has a long pressure-responsive area. Consequently, when the sensor is inserted to the recommended depth its pressure sensitive area will span the pelvic floor muscles of 95% of women.

This means that, irrespective of who carried out the test, the sensor will be located correctly every time.

Sensors of most other manufacturers have short pressure-sensitive areas. As a consequence they must be positioned carefully right at the pelvic floor. Variations in positioning leads to session-to-session and operator-to-operator variability in readings.

Care of Sensors

Please refer to [Frequent Questions]

CLINICAL STUDIES

Those using Peritron in Clinical Research projects need to know its accuracy and repeatability.

Our testing has shown that 95% of Peritron readings are 'exact'. Five percent may be one digit high or low.

For example, if the reading is 100 then there is a 95% probability that the true pressure is 100 and a 5% probability that it is 99 or 101.

To our knowledge Perition is the most accurate Perineometer currently available.

In practice, the force required to deform the sensor causes a slightly reduced reading. Providing you 'zero' the reading after insertion, the Peritron reading will be about two digits lower than actual applied pressure. (This characteristic affects every Perineometer in the world.) As the sensors are precision mouldings they are all exactly the same and so every reading you take will be about two digits short of the actual pressure indicated. Most regard this discrepancy to be meaningless in a clinical situation.

Collar

In clinical trials it is important to eliminate operator-induced artifacts as far as possible. For this reason we recommend the use of collar cat 2011 that provides repeatable depth of insertion with 100% certainty.

We are pleased to provide the results of our laboratory testing on request.

Inflation Optional for Vaginal (not Anal) Sensors

Most people use the vaginal sensors without inflation. However, a port is provided in the Peritron connecting tube that allows the sensor to be air-inflated by means of a syringe to provide a larger, firmer surface.

A standard inflation pressure of, say, 100 cm provides a constant base-line for readings. The technique used is straight forward:

  • Insert sensor
  • Inflate to reading of 100
  • Press button to zero Peritron reading
  • Have patient contract .....

The anal sensor is not intended for inflation.

Single or Multi-Patient Sensors

For such a personal item, most people prefer their own sensor. The modest cost of these makes one-sensor-per-patient a viable clinical policy.

Single-user sensors require only a soap-and-water wash between uses.

When sensors are used on multiple patients the disinfection procedures must be rigorous.

Please refer to Frequent Questions for disinfection procedures.

TECHNICAL

Peritron 9300 is a microprocessor-controlled Perineometer that measures the strength of pelvic floor muscle contractions by sensing the pressure of air in a vaginal or anal sensor. The pressure is displayed either numerically in centimetres water pressure or as a multi-range analogue bar-graph.

Peritron is supplied in a moulded case with sensor, connecting tube and handbook. There are two versions:

  • Pertiron 9300V incorporates a vaginal sensor
  • Peritron 9300A incorporates an anal sensor
  • Peritron 9300 is available with both sensors - please refer to ordering page 

Operating Range

  • 0-300 cm water pressure

Accuracy

  • 95% of readings are exact. 5% are exact ±1 cm

Numerical Readout

  • Large Liquid Crystal Display shows contraction strength in cm water pressure
  • Auto-zero function provides zero-based readings
  • Recalls Peak and Average readings and the Duration

Analogue Readout

  • Three-range bar-graph display for exercise feedback

Vaginal Sensor of 9300V

  • 26-28 mm dia, 55 mm long, active surface, 108 mm overall with thin wall, precision moulded medical-grade silicone rubber sheath
  • 80 connecting tube with port for optional inflation to 100cm water

Anal sensor of 9300A

  • 15-19 mm dia, 30 mm long, active area, 30 mm dia flange, 80 mm overall with medical grade silicone rubber sheath
  • 120cm connecting tube

Carry case

  • Moulded 23 x 17.5 x 5 cm

Auto-off

  • Function operates after four minutes of no change of pressure

Maintenance

  • 1 x 9V PP3 alkaline cell accessible to user. Life >100 hrs
  • Peritron requires no user adjustments or calibration

Warranty

  • Peritron is warranted to be free of defects for 12 months


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