So, what is Majel Barrett holding in these Third Season publicity photos?
Well, she’s holding a "cardiostimulator"—also referred to as a "physiostimulator."
We first see this portable medical device in "Journey to Babel." Folks may remember that some of the ship’s system got knocked out during the battle with the stalking Orion vessel right in the middle of the surgery on Ambassador Sarek. When the bulky over-the-torso cardiostimulator unit stopped working, Dr. McCoy instructs Nurse Chapel to "get me that old portable cardiostimulator"—which she then retrieves from a shelf on a nearby small instrument cart. Here’s the relevant scene (Scene 91) from Dorothy Fontana’s script:
ANGLE ON OPERATING TABLE
Christine has quickly hooked in a machine which is
working. The ship BUCKS and staggers heavily again.
The lights and systems go BLACK.
Lights come on almost immediately… but the key
machines stay silent. Christine clicks a switch on
the cardiostimulator… nothing happens. She tries
it again, a little frantic.
CHRISTINE
All the systems are off…
McCOY
Get me that portable cardiostimulator.
She turns quickly, takes a small odd-shaped instrument
from an instrument drawer nearby. This should not be
any of the instruments we have seen before. She hands
it to him, and as he snaps it on (APPROPRIATE SOUND
EFFECT):
McCOY
(continuing)
Call Engineering and put priority
call on the Sickbay systems.
CHRISTINE
Yes, sir.
She hurries to wall intercom near Amanda.
So, this cardiostimulator had to be odd-shaped and something we had never seen before; it was made specifically for this episode. Here are a couple of shots:
It bears all the fingerprints of a Matt Jefferies-designed prop: elongated, obtuse angles with a few curves. It has that same angular look as a pistol phaser body and even has the same non-descript gray color as the pistol phasers.
It doesn’t get a lot of major screentime, but it does actually have fairly frequent appearances.
It’s visible in "Obsession:"
You can see it sitting over on the Exercise Machine exam table in "By Any Other Name:"
You can see it on the bedside instrument tray as Dr. McCoy and Nurse M’Benga work on Kirk/Sargon in "Return to Tomorrow:"
McCoy uses it on Ambassador Petri in "Elaan of Troyius" in the prop's first appearance in the Third Season:
You can make it out in the "Emergency Surgical Kit" that Nurse Chapel brings down to the planet Amerind in "The Paradise Syndrome:"
You can see it as McCoy attempts to “revive” Captain Kirk from his “Vulcan Death Grip” in “The Enterprise Incident.” (It’s in this episode that McCoy asks Nurse Chapel to hand him the “physiostimulator”--apparently the other name for this instrument.)
It’s visible (just barely) on the instrument tray in “Spock’s Brain:”
McCoy uses it on Lieutenant Johnson in “Day of the Dove:”
McCoy uses it to examine Kirk after they return from Scalos in “Wink of an Eye:”
And it's sitting over on the Exercise Machine exam table (again) in its final appearance in TOS in “The Lights of Zetar:”
It’s also visible in a series of Third Season publicity photos:
And if you’re wondering, in the very first publicity photos at the top of this article, Majel is holding the cardiostimulator/physiostimulator prop up against a “pressure packet” bandage like the one seen in “A Private Little War” as they work on the wounded Mister Spock:
So, this thing is about the size of a desk-top stapler or wood plane. There seems to be two communicator-type Thunderjet wheel hubs on the top and another chrome type piece on the front that looks like it might have been some engine/exhaust manifold piece from some old model car kit. These a ribbed bulb-like thing and a single toggle switch. There's a raised rib-thing that runs down the back of the thing--a little off center. Overall, it's grayish in color with two dark (black?) panels on the sides.
Here are a few shots of my cardiostimulator/physiostimulator. I tried to grab shots of it in the same positions as the screen shots:
Slide show is here:
http://www.flickr.com/photos/10901121@N06/sets/72157601926658542/show/


Well, she’s holding a "cardiostimulator"—also referred to as a "physiostimulator."
We first see this portable medical device in "Journey to Babel." Folks may remember that some of the ship’s system got knocked out during the battle with the stalking Orion vessel right in the middle of the surgery on Ambassador Sarek. When the bulky over-the-torso cardiostimulator unit stopped working, Dr. McCoy instructs Nurse Chapel to "get me that old portable cardiostimulator"—which she then retrieves from a shelf on a nearby small instrument cart. Here’s the relevant scene (Scene 91) from Dorothy Fontana’s script:
ANGLE ON OPERATING TABLE
Christine has quickly hooked in a machine which is
working. The ship BUCKS and staggers heavily again.
The lights and systems go BLACK.
Lights come on almost immediately… but the key
machines stay silent. Christine clicks a switch on
the cardiostimulator… nothing happens. She tries
it again, a little frantic.
CHRISTINE
All the systems are off…
McCOY
Get me that portable cardiostimulator.
She turns quickly, takes a small odd-shaped instrument
from an instrument drawer nearby. This should not be
any of the instruments we have seen before. She hands
it to him, and as he snaps it on (APPROPRIATE SOUND
EFFECT):
McCOY
(continuing)
Call Engineering and put priority
call on the Sickbay systems.
CHRISTINE
Yes, sir.
She hurries to wall intercom near Amanda.
So, this cardiostimulator had to be odd-shaped and something we had never seen before; it was made specifically for this episode. Here are a couple of shots:


It bears all the fingerprints of a Matt Jefferies-designed prop: elongated, obtuse angles with a few curves. It has that same angular look as a pistol phaser body and even has the same non-descript gray color as the pistol phasers.
It doesn’t get a lot of major screentime, but it does actually have fairly frequent appearances.
It’s visible in "Obsession:"


You can see it sitting over on the Exercise Machine exam table in "By Any Other Name:"

You can see it on the bedside instrument tray as Dr. McCoy and Nurse M’Benga work on Kirk/Sargon in "Return to Tomorrow:"

McCoy uses it on Ambassador Petri in "Elaan of Troyius" in the prop's first appearance in the Third Season:

You can make it out in the "Emergency Surgical Kit" that Nurse Chapel brings down to the planet Amerind in "The Paradise Syndrome:"

You can see it as McCoy attempts to “revive” Captain Kirk from his “Vulcan Death Grip” in “The Enterprise Incident.” (It’s in this episode that McCoy asks Nurse Chapel to hand him the “physiostimulator”--apparently the other name for this instrument.)


It’s visible (just barely) on the instrument tray in “Spock’s Brain:”

McCoy uses it on Lieutenant Johnson in “Day of the Dove:”

McCoy uses it to examine Kirk after they return from Scalos in “Wink of an Eye:”

And it's sitting over on the Exercise Machine exam table (again) in its final appearance in TOS in “The Lights of Zetar:”

It’s also visible in a series of Third Season publicity photos:


And if you’re wondering, in the very first publicity photos at the top of this article, Majel is holding the cardiostimulator/physiostimulator prop up against a “pressure packet” bandage like the one seen in “A Private Little War” as they work on the wounded Mister Spock:

So, this thing is about the size of a desk-top stapler or wood plane. There seems to be two communicator-type Thunderjet wheel hubs on the top and another chrome type piece on the front that looks like it might have been some engine/exhaust manifold piece from some old model car kit. These a ribbed bulb-like thing and a single toggle switch. There's a raised rib-thing that runs down the back of the thing--a little off center. Overall, it's grayish in color with two dark (black?) panels on the sides.
Here are a few shots of my cardiostimulator/physiostimulator. I tried to grab shots of it in the same positions as the screen shots:





Slide show is here:
http://www.flickr.com/photos/10901121@N06/sets/72157601926658542/show/