Measure myocardial segment shortening Measure myocardial wall thickness Determine skeletal muscle contractility Measure respiratory diaphragm changes Monitor activity in crustaceans Measure myocardial segment shortening Measure myocardial wall thickness Determine skeletal muscle contractility Measure respiratory diaphragm changes Monitor activity in crustaceans 
The Model 201 Sonomicrometer Module is a precision instrument designed to measure
cardiac dimensions. It is also used to determine many other soft tissue dimensions as a
measure of muscle function. As a member of the SYSTEM 6 modular physiological
instrumentation family, it operates individually or in conjunction with other instruments
when
housed in the SYSTEM 6 mainframe. The Mainframe can be configured with six Model
201
Sonomicrometer Modules and still synchronize with external instruments, unlike
competing
configurations which support only four Sonomicrometer channels.
The Sonomicrometer Module is an advanced design based on Triton's well known Model
120 Sonomicrometer, which has been the standard in the field for over ten years.
The Sonomicrometer measures the distance between two points in soft tissue by measuring
the time it takes for a sound burst to travel from one point to another. The output is an
analog voltage proportional to the distance between the two transducers. The calibration
is
developed from a stable quartz crystal oscillator whose period of oscillation is equal
to the
time it takes sound to travel 1 mm in tissue.
The Model 201 incorporates many features not found in competing systems. The
calibration steps are individually switch selected for 1mm or 0.2mm on each module. This
feature makes it possible to measure global dimensions on one channel and blood vessel
diameter on another. The second new feature makes it possible to change the relative
timing between a Sonomicrometer channel and the Mainframe system timing. This feature
insures that Sonomicrometer and Pulsed Doppler Flowmeter Modules can operate on a
totally
non-interfering basis.
The SYSTEM 6 mainframe can be user configured to make 'triangulation'
measurements
Two
or more Sonomicrometer modules may be programmed to work from one sender (pinger).
The
Model 201 Modules are designed so that two or more receivers may be connected to one
transducer. These features make it possible to describe the motion of a volume of tissue
in three
dimensions.
The Model 201 Sonomicrometer Modules provide a feature which makes it possible to
monitor
electrograms directly from the dimension transducers. This feature is unique to
the Triton systems.
High-quality premium piezoelectric transducers come in either singles or pairs and are
used with Triton's
sonomicrometer. Custom orders are available.
Part No. Item
SA 5-1 Small Experimental Preparation Length Transducer-Single
5 MHz, 0.5-10mm typical range, 1.0mm
diameter, 20cm stainless steel plus 70cm
copper lead, Teflon insertion tube, radial
lead.
SA 5-2 Small Experimental Preparation Length Transducer-Pair
5 MHz, 0.5-10mm typical range, 1.0mm
diameter, 20cm stainless steel plus 70cm
copper lead, Teflon insertion tube, radial
lead.
SL 5-1 Segment Length Transducer-Single
5 MHz, 3-30mm typical range, 2.5mm diameter,
20cm stainless steel plus 70cm copper lead,
Teflon insertion tube, radial lead.
SL 5-2 Segment Length Transducer-Pair
5 MHz, 3-30mm typical range, 2.5mm diameter,
20cm stainless steel plus 70cm copper lead,
Teflon insertion tube, radial lead.
JP 5-1 Segment Length Transducer-Single
Same as SL 5-2, but with a 90cm stainless
steel and radial lead.
JP 5-2 Segment Length Transducer-Pair
Same as SL 5-2, but with a 90cm stainless
steel and radial lead.
EP 5-1 Epicardial Patch Transducer-Single
5 MHz, 3-30mm typical range, 6mm diameter,
90cm copper lead, Styrofoam backing, Dacron
patch.
EP 5-2 Epicardial Patch Transducer-Pair
5 MHz, 3-30mm typical range, 6mm diameter,
90cm copper lead, Styrofoam backing, Dacron
patch.
WT 5-2 Ventricular Wall Thickness Transducer Set
5 MHz, 3-30mm typical range with 90cm lead.
Includes one SL5 (2.5mm diameter) and one EP5
(6mm diameter).
VD 5-1 Vessel Diameter Transducer-Single
5 MHz, 3-30mm typical range, 2.5mm diameter,
20cm stainless steel plus 70cm copper lead,
resin-coated, unlensed, radial lead, with
patch (P) or without suture patch (NP),
please specify when ordering.
VD 5-2 Vessel Diameter Transducer-Pair
5 MHz, 3-30mm typical range, 2.5mm diameter,
20cm stainless steel plus 70cm copper lead,
resin-coated, unlensed, radial lead, with
patch (P) or without suture patch (NP),
please specify when ordering.
ID 3-1 Internal Ventricular Diameter
Transducer-Single
3 MHz, 20-120mm typical range, 6mm diameter,
90cm copper lead, axial lead, perpendicular
to plane of disk.
ID 3-2 Internal Ventricular Diameter Transducer-Pair
3 MHz, 20-120mm typical range, 6mm diameter,
90cm copper lead, axial lead, perpendicular
to plane of disk.
SID 5-1 Small Internal Ventricular Diameter
Transducer-Single
5 MHz, 3-30mm typical range, 3 1/2mm
diameter, 60cm stainless steel lead, axial
lead, perpendicular to plane of disk.
SID 5-2 Small Internal Ventricular Diameter
Transducer-Pair
5 MHz, 3-30mm typical range, 3 1/2mm
diameter, 60cm stainless steel lead, axial
lead, perpendicular to plane of disk.
ED 3-1 External Ventricular Diameter
Transducer-Single
3 MHz, 20-120mm typical range, 6mm diameter,
90cm copper lead, Styrofoam backing, Dacron
patch.
ED 3-2 External Ventricular Diameter Transducer-Pair
3 MHz, 20-120mm typical range, 6mm diameter,
90cm copper lead, Styrofoam backing, Dacron
patch.
CY 5-1 Cylindrical Wide Angle Transducer-Single
5 MHz, 3-30mm typical range, 2.5mm diameter,
20cm stainless steel plus 70cm copper lead,
cylindrical crystal.
CY 5-2 Cylindrical Wide Angle Transducer-Pair
5 MHz, 3-30mm typical range, 2.5mm diameter,
20cm stainless steel plus 70cm copper lead,
cylindrical crystal.
HE 3-1 Hemispherical Wide Angle Transducer-Single
3 MHz, 20-120mm typical range, 7mm diameter,
90cm copper lead, 180 degree hemispherical
crystal. (Silicon sheeting patch available.)
HE 3-2 Hemispherical Wide Angle Transducer-Pair
3 MHz, 20-120mm typical range, 7mm diameter,
90cm copper lead, 180 degree hemispherical
crystal. (Silicon sheeting patch available.)
HS 3-1 Hemispherical Sector Wide Angle-Single
3 MHz, 20-120mm typical range, 4mm diameter,
90cm copper lead, 90 degree hemispherical
sector. (Silicon sheeting patch available.)
HS 3-2 Hemispherical Sector Wide Angle-Pair
3 MHz, 20-120mm typical range, 4mm diameter,
90cm copper lead, 90 degree hemispherical
sector. (Silicon sheeting patch available.)
LAW 3-2 Long Axis Wide AngleTransducer Set
3 MHz, 20-120mm typical range, 90cm lead.
Includes one HE3 (7mm diameter) and one ED3
(6mm diameter).
LAS 3-2 Long Axis Sector Wide AngleTransducer Set
3 MHz, 20-120mm typical range, 90cm lead.
Includes one HS3 (4mm diameter) and one ED3
(6mm diameter).
Figure JB Muscle Function Crystal-Pair
Crystal mounted in the end of a cylinder of
medical grade epoxy 1.0 mm in diameter by
10.0 mm in length. Teflon guide/handle allows
the crystal to be inserted into stab wounds
in muscle. Used in pairs to measure distance
in muscle stretch.
Figure I Pre-Focused Sonomicrometer Crystal-Pair
5MHz; Used for acute studies on vessels from
.5mm-3mm for vessel diameter determination.
Crystals are 1mm diameter.
Figure O Accessory Cable
1 meter shielded cable suitable for use with
Doppler Probes and Sonomicrometer (2
required) Transducers (see chart on page 21
for connector options)
Transducers are sealed with casting resin for chronic implants; All are lensed on one
side and resin sealed on the
other side (except VD5).
Stainless steel leads are insulated with clear Teflon. Copper leads are silver-plated
for chronic implants and covered
with color-coated PVC insulation.
A $10+ charge applies to non-standard units.
Copyright 1995 Triton Technology, Inc.
Updated March 28, 2006