|
|
Home
> Products
> microBIRD
Miniaturized Sensors
for IntraBody Navigation
and Localization
Locating medical instruments
in 3D space is a key
requirement for image-guided
procedures.
| With
that knowledge,
clinicians can display
an overlay of instrument
coordinates onto
pre-operative scans
or real-time images.
They also can guide
tools to anatomical
targets for intervention
and delivery of
therapeutic agents.
Combined with imaging
modalities, the
tracker lets clinicians
"see"
through the patient
for internal guidance
and navigation. |
|
microBIRD
sensor easily
fits inside
a 4 French catheter
|
Because targeting
devices must function
within the human body,
there is an emerging
need for new tracking
technology. It must
be accurate, unobtrusive
and unaffected by line-of-sight
or environmental issues.
microBIRD™
is a new Ascension
tracker that meets these
requirements.
Features include 6
DOF DC magnetic tracker
with a sensor diameter
of just 1.3 mm - small
enough for insertion
into 4 French catheters.
It also offers improved
conductive metal immunity.
microBIRD provides precise,
instantaneous tip localization
of biomedical instruments.
Designed primarily
for medical device manufacturers,
microBIRD may not be
incorporated into a
customer's medical systems
until all pertinent
FDA and other regulatory
approvals are attained.
|
|
microBIRD
Components:
|
- Electronics
Unit on PCB
- DC
Field mid-range
Transmitter
(Far
Right)
- Sensors
with 1.8 M
cables and
preamplifiers
(Foreground)
|
Click
here to download the
product brochure
(PDF).
|
| Mid-Range
Transmitter |
|
Range:
Up to +2.3 ft
(.7 m) coverage |
Set-up
& Use:
Our mid-range
transmitter is ideal
for desktop applications
in environments containing
conductive metals. |
- Intra-body navigation
- Computer-assisted
procedures
- RF ablation
- Image-guided intervention
and therapies
- Robotically-controlled
surgery
- 3D Ultrasound
- Electrophysiology
- Brachytherapy
- Telerobotics and
telesurgery
|
A microBIRD
sensor, 1.3 mm in
width (shown at left),
can now be used with
catheters as small
as 4 French on the
French Catheter Scale.
Previously sensor
size was limited to
1.8 mm (shown at right)
for insertion in catheters
of 7 French and higher
|
| 6DOF
Tracking |
- Full six degrees-of-freedom
localizer - a hard
requirement for needle-guided
procedures. Roll angle
is always measured
without increasing
sensor size.
|
| Advanced
New Tracking Technology
for Precise Measurements |
- New signal processing
electronics and improved
sensor technology
provide excellent
tracking stability
and better than 1.5mm
accuracy. Multiple
transmitter options,
metal detection and
noise reduction tools
make sure that environmental
factors do not affect
the tracking accuracy.
Measurements highly
repeatable for re-positioning
purposes.
|
| Metal
Tolerance |
- Five times less
sensitivity to conductive
metals such as 300-series
stainless steel and
titanium, than AC
magnetic trackers.
|
| No Occlusions
|
- microBIRD transmits
position and orientation
data over a full range
of movement even when
sensors are embedded
in instruments or
the human body. No
occlusion.
|
| 3D
Tracking without Ionizing
Radiation |
- Real-time guidance
of instruments and
delivery devices without
radiation exposure
or reliance on 2D
X-ray imaging. microBIRD
offers a new option
when radiation techniques
are not acceptable,
such as radio-frequency
ablation cases.
|
| Affordability |
- microBIRD is available
now at a fraction
the cost of competing
trackers for medical
imaging. Sensors are
configurable for reposibility
and disposability.
|
- Precise measurement of
the position and orientation
of miniaturized sensors
within the human body
- Navigation of the tip
of flexible endoscopes and
catheters to pre-defined
locations
- Placement of tools and
mapping of anatomical features
- 3D reconstruction of ultrasound
images
- Tracking of surgical instruments
and probes
- Guidance of robotic end-effectors
- Synchronization of instrument
tip location with internal
anatomy
- Placement and visualization
of implants
- Localization of anatomical
targets for delivery of
therapies and medications
- Annotation (tagging) location
of internal targets
- 3D localization of radioactive
seeds for accurate dosimetry
- Tagging soft tissue landmarks
- Electronics Unit on PCI-bus
card
- DC Magnetic Field Mid-Range
Transmitter
- Customization Options
Sensor Specifications
- Model 130: Max OD 1.3
mm; length 6.5 mm with 0.6
mm OD cable, 1.8 m in length
- Model 180: Max OD 1.8
mm; length 8.4 mm with 0.9
mm OD cable, 1.8 m in length
- Ascension Medi-Mag Cable,
USP class 6 jacket material
or vinyl encapsulated cable
- USP class 6 epoxy sensor
housing
- USP 6 polyester protective
wrap (bare sensor only)
- Maximum temperature 150°
C
- Sensor assembly and cable
materials are EtO, gamma
and cold sterilant tolerant.
- Semiconductor devices
in connector are not gamma
shielded and may be damaged
or erased if exposed to
gamma radiation
| TECHNICAL |
| Degrees
of Freedom: |
6
(Position and Orientation) |
| Translation
Range : |
±58cm in any direction |
| Angular
Range: |
All
Attitude: ± 180° Azimuth
& Roll; ±90° Elevation |
| Static
Accuracy*: |
Position:
1.4mm RMS
Orientation: 0.5° RMS
angular |
| Static
Resolution: |
Position:
0.5mm @ 30.5 cm
Orientation: 0.1° @ 30.5
cm |
| Update
Rate: |
Up to 90
measurements/second |
| Outputs: |
X,Y,Z positional
coordinates, orientation
angle, or orientation
matrix |
| Interface: |
PCI v.2.1
compliant 5V. Requires
disc drive power connector
to meet power needs |
| Data Format: |
Binary
data records |
| Communication: |
Ascension
supplied Windows API |
| PHYSICAL |
| Transmitter: |
Contact
us for available options |
| Sensors: |
- Sensor max OD 1.8
mm
- Sensor max length
8.4 mm
- Unencapsulated
Sensor weight: .2
g (<.01oz) without
cable, 11.8 g (0.4
oz) with cable
- Cable length 2
meters
- Ascension Medi-Mag
cable, USP class 6
jacket material
- Cable 0.9 mm max
OD
- USP class 6 epoxy
sensor housing
- USP 6 polyester
protective wrap (bare
sensor only)
- Maximum temperature
150°C
- Sensor assembly
and cable materials
are EtO, gamma, and
cold sterilant tolerant
- Semiconductor devices
in connector are not
gamma shielded and
may be damaged or
erased if exposed
to Gamma radiation
|
| PCI
Card: |
Standard
full-length board (312
mm x 107 mm), 5V |
| Power: |
+12V
at 1.85 amps nominal standard
transmitter, 2.5A max
+5V, 2A nominal |
| Operating
Temp: |
15°
C to 35° C; 95% non-condensing
humidity. |
| Environment: |
Metal objects
and stray magnetic fields
in the operation volume
may degrade performance.
Contact us for assistance
in using or "Optimizing
Tools" to minimize
metallic distortion and
noise interference. |
| Warm-up: |
System
requires 5-minute warm-up
for full accuracy |
* Accuracy
verified for each sensor
size (using mid-range
transmitter) as follows:
- Model 130: 20cm
min to 36cm max X,
±15cm Y, Z
- Model 180: 20cm
min to 51cm max X,
±23cm Y, Z
|
| microBIRD
is a commercial tracking
product; not designed
for human use in medical
applications. For medical
applications, researchers
and/or medical device
manufactures must comply
with all pertinent FDA
and international regulatory
standards.
Notes
on Accuracy
Accuracy is defined
as the root mean squared
(RMS) deviation of a
true measurement of
the magnetic center
of a single sensor with
respect to the magnetic
center of a single transmitter
measured over the specified
translation range. Accuracy
varies from one location
to another over this
translation range and
will be degraded in
there are interfering
electromagnetic noise
sources or metal in
the operating environment
are not identified and
minimized using microBIRD
optimization tools.
Back
to Top
|
|
| |
|
|
|
| |
|
|
 |
|
