CClinicalTrials.gg
CompletedNCT00964444Updated Aug 19, 2010Results posted

Demonstration of a New Device to Measure the Force of Delivering a Baby

An observational study in Full Term Singleton Pregnancy, sponsored by Pinnacle Health System. Completed at 1 site in United States. Open to female participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2010-08-19.

Sponsored by Pinnacle Health System · Observational

Study type
Observational
Time perspective
Prospective
Enrollment
10
Ages
18 Years and older
Sex
Female
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Study summary

This study is an observational study to prove that a new device, which measures the force of delivering a baby, (US patent 6,684,165) functions as described in the patent. This is the first time this has been used with patients.

Read the detailed description

Currently, there is no way to measure how hard a doctor or midwife pulls when a baby is delivered. This device is a platform with special sensors. The doctor or midwife stands/sits on the platform while delivering the baby, and using a simple physical principle: for every action, there is an equal an opposite reaction. Prior to building the prototype and starting the study, the system and concept has been patented (US patent 6,684,165). In reality, this is not really a medical device since it does not touch the patient and does not have any effect on the delivery itself. It is merely a new type of external observation of the delivery of a baby that happens to produce useful information (the force that is exerted when the baby is delivered).

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Conditions studied

  • Full Term Singleton Pregnancy

Keywords

  • Labor and delivery
  • Vaginal delivery
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In context

Lead sponsor

Pinnacle Health System is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients with an uncomplicated singleton pregnancy at term in active labor, who are anticipated to have a vaginal delivery.

Inclusion criteria

  • Pregnancy at term
  • Singleton gestation
  • Vertex presentation

Exclusion criteria

Exclusion Criteria:

  • Non-reassuring fetal heart rate tracing
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Study design

Time perspective
Prospective
Enrollment
10 participants (actual)
Biospecimen retention
None retained

Interventions

  • DevicePeisner device

    The doctor/midwife stands on the device while the baby is delivered. The device measures how much force is exerted on the baby.

    Also known as: Peisner platform

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What researchers measure

Primary outcomes

  1. Force Exerted on a Fetus as the Delivery Occurs

    The amount of force exerted on the fetus was measured in ounces. It was calculated based on measurements from the force transducers in the platform. The obstetrician stands or sits on the platform as the infant is delivered.

    Time frame: Assessment was done after the delivery

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Results

Posted Aug 19, 2010
Limitations and caveats
The trial was limited to singleton term pregnancy (37-42 weeks) patients in active labor. The study was only designed to prove that the device works and not to determine the normal range of force exerted on a fetus as it was delivered.

Participant flow

Pregnant patients at term in early labor with a singleton vertex fetus and anticipated vaginal delivery are recruited in the labor \& delivery suite of Harrisburg Hospital for this study

Participant flow — Overall Study
MilestoneDelivery Force Study Patients
Started10
Completed10
Not completed0

Outcome measures

PrimaryForce Exerted on a Fetus as the Delivery Occurs

The amount of force exerted on the fetus was measured in ounces. It was calculated based on measurements from the force transducers in the platform. The obstetrician stands or sits on the platform as the infant is delivered.

Time frame:
Assessment was done after the delivery
Reported as:
Mean · ounces
Force Exerted on a Fetus as the Delivery Occurs
ouncesDelivery Force Study Patients
Force Exerted on a Fetus as the Delivery Occurs274.5 ± 107.8

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Delivery Force Study Patients—0/10 (0%)0/10 (0%)
Most frequent serious events
Most frequent serious events
EventDelivery Force Study Patients
Device failurePregnancy, puerperium and perinatal conditions0/10

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Delivery Force Study Patients
<=18 years0
Between 18 and 65 years10
>=65 years0
Age Continuous
Age Continuous(years)Delivery Force Study Patients
Mean25.6 ± 4.4
Sex: Female, Male
Sex: Female, Male(Participants)Delivery Force Study Patients
Female10
Male0
Region of Enrollment
Region of Enrollment(participants)Delivery Force Study Patients
United States10
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Study locations

1 site
  • Harrisburg Hospital
    Harrisburg, Pennsylvania 17101, United States
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References and documents

Publications

  • Peisner DB. A device that measures the pulling force and vector of delivering a baby. Am J Obstet Gynecol. 2011 Sep;205(3):221.e1-7. doi: 10.1016/j.ajog.2011.04.029. Epub 2011 Apr 24. PubMed 21684515 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 19, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00964444
Lead sponsor
Pinnacle Health System
First posted
Aug 25, 2009
Start date
Apr 2009
Primary completion
Sep 2009
Completion
Sep 2009
Results posted
Aug 19, 2010
Last update
Aug 19, 2010

Study contacts

David B Peisner, MD
principal investigator · Pinnacle Health System

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2010. You cannot join it, but the record below documents what was studied.

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