The Chiemsee Knee Replacement Clinic (CKRC) is a sports clinic located at the northern edge of the German Alps. It specializes in knee replacements for skiers who come to CKRC from Germany, Austria, Switzerland, and Ital

The

Chiemsee

Knee

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Replacement

Clinic

(CKRC)

is

a

sports

clinic

located

at

the

northern

edge

of

the

German

Alps.

It

specializes

in

knee

replacements

for

skiers

who

come

to

CKRC

from

Germany,

Austria,

Switzerland,

and

Italy.

The

clinic

currently

has

one

operating

room

(OR).

However,

since

the

clinic

has

dramatically

more

demand

than

capacity,

the

management

team

contemplates

investing

in

a

second

OR.

A

lean

consulting

firm,

however,

suggests

that

before

going

ahead

with

installing

new

capacity,

the

clinic

should

first

look

at

how

it

uses

its

existing

capacity.

The

data

collected

by

the

consulting

firm

reveal

that:

-­‐ The

OR

is

available

for

12

hours

a

day;

the

hospital

has

decided

to

not

perform

any

procedures

between

7pm

and

7am.

This

time

is

equally

divided

across

three

surgeons.

-­‐ The

standard

procedure

time

for

the

knee

surgery

done

at

the

clinic

is

1h.

-­‐ The

cleaning

and

housekeeping

that

needs

to

happen

after

each

procedure

takes

20

minutes.

Almost

all

of

this

time

could

be

saved

if

the

cleaning

crew

were

notified

earlier

on.

-­‐ 10

minutes

are

spent

on

patient

preparation

/

anesthesia

work

before

each

procedure.

(Note:

this

is

not

part

of

the

60-­‐minute

procedure

time).

Proposals

have

been

evaluated

to

move

these

10

minutes

to

outside

the

OR,

and

there

exists

no

medical

reason

that

would

prohibit

doing

this.

-­‐ A

surgeon

only

starts

a

case

if

all

of

the

work

associated

with

the

case

(preparation,

procedure,

and

cleaning)

can

be

completed

in

the

4h

allotted

to

each

surgeon.

Surgeons

never

start

BEFORE

their

allotted

time.

-­‐ Though

the

clinic

aims

to

operate

7

days

a

week,

holidays,

vacation,

and

construction

time

lead

to

an

average

of

one

day

a

week

that

the

OR

cannot

be

used

at

all.

CKRC1.

How

many

cases

are

going

through

the

OR

per

day

when

the

OR

is

in

use?

CKRC2.

What

is

the

OEE

of

the

operating

room?

Assume

a

12h

window

in

which

the

OR

could

be

used.