RadPad® sterile, disposable X-ray protection
shields protect you, the operator, from harmful scatter radiation emitted from
the patient’s body during any procedure requiring fluoroscopy.
Because RadPad® is not made with lead, it is lightweight, conforms to
the patient’s body, and is easy to position. The RadPad® can be easily
fixed in place with the tape located on the nonwoven fabric covering.
RadPad®, equivalent to 0.25 mm Pb, can absorb 90% of the radiation in
a 90-kVP beam*. The radiation absorption material, a combination of antimony,
tungsten, and ethylene polymer can be disposed and is friendly to the environment.
* AngioSystems, Inc. internal company data
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| RadPad® can be used during any fluoroscopy
procedure. |
Cardiology:
Diagnostic,
Angioplasty, Stent, & Peripheral Interventions |
Electrophysiology:
Diagnostic,
Ablations, Pacemaker/ICD Implants, Biventricular
Pacemaker Implants |
Radiology:
Dialysis
Graft Declotting, TIPS, Pain Management, Renal & Biliary Drainage, Shunt
Evaluations |
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| Fluoroscopy
Times and Radiation Counts |
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Group A
(without RADPAD)
N=20 |
Group A
(with RADPAD)
N=20 |
Fluoroscopy
time
(sec)* |
Total |
1288* |
1565* |
| Mean |
64.4* |
78.3* |
Total radiation
dose, mrem |
60+ |
14+ |
Time-adjusted
dose, mrem/s |
0.047+ |
0.009+ |
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| *P=NS, +P<0.05 |
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mean mR/hr
at Elbow |
mean mR/hr
at Hand |
% reduction |
| Procedure |
Cases |
without
RADPAD |
with
RADPAD |
without
RADPAD |
with
RADPAD |
at Elbow |
at
Hand |
EP
Study |
7 |
68-81 |
26-36 |
61-76 |
21-30 |
56-62% |
61-66% |
ICD
Implant |
2 |
85-100 |
23-33 |
225-280 |
68-90 |
67-73% |
69-70% |
Pacemaker
Implant |
6 |
70-84 |
27-34 |
192-223 |
53-71 |
60-61% |
68-72% |
Catheter
Ablation |
5 |
76-87 |
43-51 |
113-126 |
47-59 |
41-43% |
53-58% |
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As interventional procedures have increased in time and frequency, the problem
of increased exposure to scatter radiation by the lab staff has become apparent.
In 1990, the ICRP (International Commission on Radiological Protection) advised
acceptance of the ALARA (As Low As Reasonably Achievable) concept, which states
that exposure to scatter radiation by the medical worker be reduced as much as
is reasonably possible. |
| Effective dose equivalent |
20 mSv/yr(A) |
| Equivalent dose to lens |
150 mSv/yr |
| Equivalent dose to skin (1cm2) |
500 mSv/yr |
| Equivalent dose to hand and foot |
500 mSv/yr |
| Equivalent dose to pregnant woman’s abdomen |
2 mSv/yr(B) |
| Intake of radioactive material by pregnant
woman |
1/20th of annual intake limit |
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(A)Average yearly dose over 5 years (not to exceed 50 mSv in
any 1 year)
(B)Value over time remaining after declaring pregnancy |
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RADPAD® is a registered trademark of
Worldwide
Innovations & Technologies ,Inc.
US Patent: 4,938,233; 6,310,355; 5,278,219;
6,674,087; other patents pending
Japan Patent: 1945941 |
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