Parks 915-BL Operating & Service Manual
  1. Manuals
  2. Brands
  3. Parks Manuals
  4. Medical Equipment
  5. 915-BL
  6. Operating & service manual

Parks 915-BL Operating & Service Manual

Dual-frequency doppler
Hide thumbs
Table of Contents

Advertisement

Quick Links

915-BL Dual-Frequency Doppler
The 915-BL Dual-Frequency Doppler is two Dopplers in one case. The low-frequency nominal 2 MHz
precordial probe may be used to detect the passage of air emboli in the heart. The high-frequency nominal
8-9 MHz pencil probe is used for systolic pressures at sites where a stethoscope is not used, as well as
to detect blood pressures that are too low for a stethoscope to auscultate. This probe can also be used to
listen for blood fl ow and pulses distal to arterial repair.
A built-in cautery suppressor with a controllable threshold shuts off the sound when the interference gets
too high.
Read this manual prior to use.
Follow manufacturer's guidelines for safety and maintenance of equipment.
This instrument was manufactured to comply with all relevant national or international regulations and
left the factory in safe condition. In order to keep this instrument in a perfect and safe condition, it is up
to the user to observe all instructions and warnings included in this manual.
915-BL, UNM 5.5
6/2012
PARKS
Operating/Service Manual
915-BL Dual Frequency Doppler
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 915-BL and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for Parks 915-BL

  • Page 1 915-BL Dual-Frequency Doppler Operating/Service Manual The 915-BL Dual-Frequency Doppler is two Dopplers in one case. The low-frequency nominal 2 MHz precordial probe may be used to detect the passage of air emboli in the heart. The high-frequency nominal 8-9 MHz pencil probe is used for systolic pressures at sites where a stethoscope is not used, as well as to detect blood pressures that are too low for a stethoscope to auscultate.
  • Page 2 Aloha, Oregon U.S.A. Parks Medical Electronics, Inc.

  • Page 3: Table Of Contents

    Physiologic Vascular Testing ....... 32 Taking Blood Pressure (BP) Measurements ..10 Measuring Systolic Pressure ........11 Lower Extremity Arterial Evaluation......11 Preoperative and Postoperative Blood Pressure (BP) Measurements ..........13 Upper Extremity Arterial Evaluation..... 13 Venous Evaluation..........13 References ............14 915-BL Dual Frequency Doppler...

  • Page 4: Introduction

    Acoustic Output Power This device is intended for vascular studies. It is not intended for obstetrical use. Parks Medical Electronics, Inc. manufactures a complete line of obstetrical Dopplers. Instrument Identification Information Write the information from your instrument bar code label here or on the parts page for reference when...
  • Page 5 11. Volume Control Knob probes plug into these jacks. This knob controls the Doppler sound level. Turning the knob clockwise increases the 6. Battery Charger Indicator Lamp volume. This lamp lights when the unit is charging. 915-BL Dual Frequency Doppler...

  • Page 6: Equipment Description Probes

    The 915-BL comes with a 2.1-2.25 MHz (frequency specifi ed) precordial probe and either a 8.0-9.9 MHz (frequency specifi ed) standard pencil probe or fl at probe. The precordial probe is used to detect air emboli in the heart.

  • Page 7: Battery Charger

    Headphones The speaker is disconnected when the optional low impedance stereo headphones are plugged in. You will always hear more through the headphones, especially when checking weak fl ow or veins. 915-BL Dual Frequency Doppler...

  • Page 8: Operating Instructions Setting Up The Instrument

    Using the Probe Parks’ pencil probes are positioned differently than other Doppler probes because they are designed to detect blood fl ow in vessels that are too deep to feel. The main energy of the beam is only as wide as the crystals in the probe, so you must always search the area of the vessel and tilt the probe to obtain best Doppler sounds.

  • Page 9: Using The Cautery Suppressor

    Charging Doppler in the Optional Carrying Case If your Doppler came in a carrying case, Parks recommends that you keep the unit on charge with the carrying case lid off. The carrying case has slip hinges that allow for easy removal of the lid.

  • Page 10: Diagnostic Procedures Performing Diagnostic Procedures

    fl at probe under the lower edge of the BP cuff and listen for either the loss of sound as diastolic pressure passes or the return of the dicrotic notch, which is the beginning of the cardiac cycle. Aloha, Oregon U.S.A. Parks Medical Electronics, Inc.

  • Page 11: Measuring Systolic Pressure

    Divide the ankle pressures by the highest brachial pressure; this is the ankle/brachial index. Example: Brachial systolic pressure Higher brachial pressure Ankle systolic pressure is used for calculations. Ankle/brachial indices (ABI) 0.64 0.61 If the ABI is unquestionably normal bilaterally, there is no need to perform segmental studies. 915-BL Dual Frequency Doppler...
  • Page 12 20-30 mm Hg above the highest brachial pressure for 3-5 minutes and then released. Systolic pressures are measured as with the exercise regimen. This procedure may be contraindicated because of the level of discomfort associated with it. Aloha, Oregon U.S.A. Parks Medical Electronics, Inc.

  • Page 13: Preoperative And Postoperative Blood Pressure (Bp) Measurements

    Doppler studies can be used to assess patients for the presence of occlusions, deep vein thrombosis (DVT), and valvular incompetence associated with varicose veins. Doppler studies can detect spontaneous venous fl ow, which is phasic with respiration, and augmentation with distal compression. See standard textbooks for more information. 915-BL Dual Frequency Doppler...

  • Page 14: References

    Ali F. Aburahma, John J. Bergan, Editors. Noninvasive Vascular Diagnosis: A Practical Guide to Therapy. Springer; 2006 C. Rumwell, M. McPharlin. Vascular Technology: An Illustrated Review. Davies Publishing; 2003 Noninvasive Diagnosis of Vascular Disease. Davies, Inc; 1999 Aloha, Oregon U.S.A. Parks Medical Electronics, Inc.

  • Page 15: Maintenance And Service

    The Doppler unit is tuned by the manufacturer to match the frequency of the probe, and the tuning of the circuit is very stable. If sensitivity problems are suspected, do not attempt to adjust the instrument; contact your sales representative or Parks Medical Electronics, Inc. Routine Maintenance The Doppler unit does not require regularly scheduled maintenance.

  • Page 16: Replacing The Battery

    If following the troubleshooting guide does not correct the problems you are experiencing with the Doppler, call technical support at Parks Medical Electronics, Inc. Should this Doppler require technical service, Parks recommends that the instrument be returned to the factory. Parks will ensure that electrical components meet the company’s standard of performance.

  • Page 17: Troubleshooting Guide

    Maintenance and Service Troubleshooting Guide This table lists common problems and suggestions for troubleshooting them. If a problem persists after these actions have been taken, contact Parks Medical Electronics, Inc. Problem Situation Suggested Actions 1.0 Doppler unit 1.1 The power control •...
  • Page 18 Maintenance and Service Troubleshooting Guide This table lists common problems and suggestions for troubleshooting them. If a problem persists after these actions have been taken, contact Parks Medical Electronics, Inc. Problem Situation Suggested Actions (continued) (continued) 3.0 Hard to hear 3.1 Too much noise...
  • Page 19 Maintenance and Service Troubleshooting Guide This table lists common problems and suggestions for troubleshooting them. If a problem persists after these actions have been taken, contact Parks Medical Electronics, Inc. Problem Situation Suggested Actions (continued) (continued) (continued) 3.1.5 Check for electromagnetic interference 3.0 Hard to hear...

  • Page 20: Technical Information And Notes

    Headphones Optional low impedance stereo headphones override internal speaker. Internal Speaker Speaker disconnects when headphones are plugged in. Parks 915-BL UN Manual Operating manual with maintenance and service section. Probes Precordial Probe: Low-frequency specifi ed 2.1-2.25 MHz; double-shielded cable; 3/4 in diameter circular crystal;...

  • Page 21: Warranty

    Parks Medical Electronics, Inc. warrants this Doppler against defects in materials and workmanship for a period of one year, probes for six months. Parks will, at its discretion, replace or repair free of charge, including labor, all parts which prove to be defective and subject to such warranty.

  • Page 22: Electrical Safety

    Doppler’s metal case is grounded and comes in contact with or is used with other electronic equipment. 8. This instrument should not be used with a defi brillator. Parks assumes no responsibility for the misuse of this equipment. Aloha, Oregon U.S.A. Parks Medical Electronics, Inc.

  • Page 23: Ordering Information And Replacement Parts

    Carrying Case With Lid 800, Parks part #798-0016-02 901, Parks part #798-0018-05 Fuse 1 A FAST, Parks part #865-6001-00 Headphones Optional low impedance stereo headphones with 1/4 in. plug. Available from Parks Medical Electronics, Inc. Parks 915-BL, UN Manual...
  • Page 24 Aloha, Oregon U.S.A. Parks Medical Electronics, Inc.

  • Page 25: Appendix

    To insure that the acoustical output power evaluation would show the absolute worse case acoustical output parameters, Parks had the test done using a model 811-B tuned to 9.8 MHz. The output power was 75 mW, which translated to a maximum P of 20.8 mW for the probe tuned to the unit.
  • Page 26 Appendix Aloha, Oregon U.S.A. Parks Medical Electronics, Inc.
  • Page 27 Appendix 915-BL Dual Frequency Doppler...
  • Page 28 Appendix Aloha, Oregon U.S.A. Parks Medical Electronics, Inc.
  • Page 29 Appendix 915-BL Dual Frequency Doppler...
  • Page 30 Diagnosis and Treatment of Chronic Arterial Insufficiency of the Lower Extremities MODEL 811-B Howard C. Baron, M.D. F.A.C.S. C. B , M.D., F.A.C.S.* OWARD ARON Leg distress⎯ cramps, fatigue, or just vague foot, in the heel area, or in the region of the and the superficial veins in the distal portion of the foot will fill in 10-15 seconds.
  • Page 31 The angiogram, however, does not yield claudication. However, minor ischemic information regarding the hemodynamic ulcerations may heal and rest pain may significance of the lesion. For this information occasionally relieved following the Doppler flow detector is a useful and sympathectomy. accurate instrument.

  • Page 32: Practical Offi Ce Technics For Physiologic Vascular Testing

    Practical Office Technics for Physiologic Vascular Testing COL CLYDE 0. HAGOOD, JR., MC, USAF, LTC DAVID J. MOZERSKY, MC, USAF, and SSGT RANDAL N. TUMBLIN, BS, USAF, † Lackland AFB, Tex Abstract: The development of the Doppler ultrasonic flow velocity detector has improved diagnostic accuracy in peripheral arterial occlusive disease.
  • Page 33 OFFICE TECHNICS FOR VASCULAR TESTING - Hagood et al After the routine history and physical examination in the nature of the arterial signal can be have been completed, the peripheral vessels are detected easily, after gaining some experience surveyed with the Doppler ultrasonic velocity with the instrument.
  • Page 34 OFFICE TECHNICS FOR VASCULAR TESTING - Hagood et al FIG 2 Technic of obtaining ankle systolic blood pressure. The angle of the probe in relation to the long axis of the posterior tibial artery should be optimized to obtain the best signal. the pressure will be immediately after the activity, using the method lowered in the vessels distal...
  • Page 35 OFFICE TECHNICS FOR VASCULAR TESTING - Hagood et al resistance provided by the attendant’s hand. Alternatively, Doppler survey and ankle pressure measurements not the patient can be instructed to rapidly perform toe lifts only suggested the correct diagnosis preoperatively, until fatigue or calf pain develops. These methods are but also confirmed the salutory effect of the surgical less standardized than treadmill exercise, but they have procedure post-operatively.
  • Page 36 OFFICE TECHNICS FOR VASCULAR TESTING - Hagood et al Conclusions FIG 3 Palpation of pulses and inspection of the limb are subjective methods of evaluating complaints that may be related to arterial insufficiency. Since the physician whose practice includes patients with many varying problems may feel insecure about his ability to evaluate pulses, objective testing m e t h o d s h a v e a r e a l p l a c e i n t h e d i a g n o s t i c...

Table of Contents

Save PDF