Monkey Restraint DeviceMonkey Restraint Device

Department of Biomedical EngineeringDepartment of Biomedical Engineering

UW-MadisonUW-Madison

Monkey Restraint GroupMonkey Restraint Group

Group:Group: Kelly ToyKelly Toy Kawai ChanKawai Chan

Brian FrederickBrian Frederick Miguel Miguel BensonBenson

Ross GerberRoss Gerber

Aman GhotraAman Ghotra

Client: B’Ann Gablet, MSClient: B’Ann Gablet, MS

Advisor: Willis Tompkins, PhDAdvisor: Willis Tompkins, PhD

Problem StatementProblem Statement

To modify an existing monkey To modify an existing monkey restraint device in order to restraint device in order to effectively restrain a monkey’s head effectively restrain a monkey’s head for topical eye-drop administration. for topical eye-drop administration.

Background InformationBackground Information

50 years of non-human primate studies50 years of non-human primate studies

Rhesus are 95% genetically similar to humansRhesus are 95% genetically similar to humans

B’Ann Gabelt performs glaucoma research on B’Ann Gabelt performs glaucoma research on rhesus monkeyrhesus monkey

Current restraint was made by Midwest Current restraint was made by Midwest Regional Primate Research CenterRegional Primate Research Center

Background MaterialBackground MaterialRestraint ProcedureRestraint Procedure

Monkeys Monkeys transported via transported via transport cages (A)transport cages (A)

Monkeys are Monkeys are pushed into pushed into treatment cage (B)treatment cage (B)

Restraint swings to Restraint swings to vertical positionvertical position

Background MaterialBackground MaterialRestraint ProcessRestraint Process

Open treatment cage Closed treatment cage

Product Design SpecificationsProduct Design SpecificationsClient NeedsClient Needs

Restrain head of monkeyRestrain head of monkey

Compatible with existing restraintCompatible with existing restraint

Work with various sized monkeysWork with various sized monkeys

Not harm the monkeyNot harm the monkey

Product Design SpecificationsProduct Design SpecificationsGroup SpecsGroup Specs

Extremely durableExtremely durable

Operable by one personOperable by one person

Easily sanitizedEasily sanitized

Fits under protocolFits under protocol

Design #1Design #1

Durable plastic, set Durable plastic, set across bars of cageacross bars of cage

Chin restraintChin restraint Able to slide up to Able to slide up to

chinchin Locked in place by Locked in place by

a fastenera fastener Monkey able to Monkey able to

cover eyes, grabcover eyes, grab

Design #2Design #2

Wide winged Wide winged plastic sheetplastic sheet

Hole for monkey’s Hole for monkey’s headhead

Keeps monkey’s Keeps monkey’s hands below sheethands below sheet

Locks onto bars of Locks onto bars of cagecage

Allows chin duckingAllows chin ducking

Design #3Design #3

Wide winged Wide winged plastic sheetplastic sheet

Chin restraint that Chin restraint that slides to monkey slides to monkey

Prevents monkey Prevents monkey from using armsfrom using arms

Compatibility with Compatibility with all sized monkeys?all sized monkeys?

Group 2’s DesignsGroup 2’s DesignsRoss Gerber and Aman GhotraRoss Gerber and Aman Ghotra

U-Cup with PinU-Cup with Pin

Chin StrapChin Strap

Headband Strap RestraintHeadband Strap Restraint

U-Cup PinU-Cup Pin

Different pin Different pin settingssettings

Comfortable chin Comfortable chin postpost

Attach at back of Attach at back of cage and swivelscage and swivels

Chin StrapChin Strap

Like football chin Like football chin strapstrap

Flexible durable Flexible durable materialmaterial

Secures to back of Secures to back of cagecage

Headband RestraintHeadband Restraint

Fits around head Fits around head and down around and down around the chinthe chin

Straps on top act Straps on top act like zip ties like zip ties

Monkey’s own Monkey’s own movements tighten movements tighten devicedevice

Group 3’s DesignsGroup 3’s Designs Kawai and Miguel’s DesignsKawai and Miguel’s Designs

1. Flatboard Design1. Flatboard Design

2. Stick and Clamp Design2. Stick and Clamp Design

3. Velcro Design3. Velcro Design

Flatboard DesignFlatboard Design

View from the top

Stick and Clamp DesignStick and Clamp Design

Component:Component:

1. Stick1. Stick

2. Clamps2. Clamps

3. Headrest3. Headrest

Whole DeviceWhole Device

Velcro DesignVelcro Design

Components: Components:

1. Headrest1. Headrest

2. Two Velcro Stripes2. Two Velcro Stripes

Whole DesignWhole Design

Final DecisionFinal Decision

Velcro DesignVelcro Design

Easy to make, components can be Easy to make, components can be purchased separatelypurchased separately