Category: Bifilar suspension procedure

Bifilar suspension procedure

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Sorry, your blog cannot share posts by email.The aim of Burch colposuspension is to reposition the muscles that connect the bladder to the urethra bladder neck. This helps them resist increases in abdominal pressure. This approach was widely used before midurethral slings were available. Slings have largely replaced colposuspension because they are easier to place and require a smaller operation.

Burch colposuspension is a good treatment option if a midurethral sling cannot be used. For Burch colposuspension, you will receive drugs to make you unconscious and insensitive to pain general anaesthesia. Before the surgery the doctor will ask for a urine sample to make sure you do not have a urinary tract infection.

If you have an infection, your doctor will prescribe antibiotics before, during, and after the operation. Your doctor will advise you in detail about how to prepare for the procedure. You must not eat, drink, or smoke for 6 hours before surgery to prepare for the anaesthesia. If you are taking any prescribed medication, discuss it with your doctor. You may need to stop taking it several days before surgery.

BIFILAR SUSPENSION EXPERIMENT PDF

Your doctor will advise you on when to start using it again. The doctor will generally remove the catheter immediately after the surgery and monitor your recovery. Usually, you can leave the hospital a few days after the procedure. If you have problems urinating or there is much residual urine in the bladder, you may have to stay longer. The recommended length of hospital stay varies in different countries.

Complete recovery from Burch colposuspension may take up to 6 weeks. During this time you could experience occasional pain in the pelvic area, or pain or a burning sensation when you urinate. Discuss with your doctor if you can get medication to deal with these symptoms. Go to:. Table of Contents. When should I consider Burch colposuspension? How is Burch colposuspension performed? Steps: The bladder is emptied.

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Your doctor will insert a catheter to make sure that your bladder is completely empty during surgery. The surgical instruments are inserted. Burch colposuspension can be performed by open surgery or laparoscopic surgery: For open surgery the surgeon makes an incision in your lower abdomen to access the pelvic area directly.

bifilar suspension procedure

For laparoscopic surgery, the surgeon inserts small plastic tubes into your abdomen. Through these tubes the surgeon can insert the instruments needed to perform the surgery.

One of the small tubes is used to insert a camera which allows the surgeon to see a high-quality image of the area on a video monitor. Laparoscopic and open surgery are equally effective to cure SUI in women. In general, hospital stay is shorter with laparoscopic surgery. The bladder neck is lifted. The side of the vagina is attached to the ligament behind the pubic bone with sutures so that the bladder neck lies in a hammock.

This will lift and support your bladder neck. How do I prepare for the procedure? After the procedure. How long will it take me to get back to my daily activities? Recommendations for weeks after the surgery: Drink litres every day, especially water Do not lift anything heavier than 5 kilograms Do not do any heavy exercise Take showers instead of baths Avoid thermal baths, or going to the sauna Adapt your diet to prevent constipation Avoid vaginal penetration You need to go to your doctor or go back to the hospital right away if you: Develop a fever Are unable to urinate on your own Have heavy blood loss or pain Notice the wound starts to bleed or leak transparent fluid, or it hurts.AIM : To determine the moment of inertia of a horizontal rectangular drop bar about its center of mass using the bifilar suspension technique.

The bifilar suspension is a technique used to determine the moment of inertia of any type of object about any point on the object. This is done by suspending two parallel cords of equal length through the object examined.

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However, the approach taken for this experiment is to determine the moment of inertia of a drop by suspending the cords through the mass centre of bodies, obtaining an angular displacement about the vertical axis through the centre of mass by a sensibly small angle.

The apparatus used for this experiment consists of a uniform rectangular drop bar suspended by fine wires assumed to have negligible weight contribution to the system. This rectangular bar contains holes equidistant from each other and two extra with equal masses of 1. Chucks are also in place to alter length of suspended wires. In addition an enclosed-type measuring tape and weight balance were also used for the experiment.

A diagram on the arrangement of the apparatus used is illustrated below:. With the bar suspended by the wires, the length L was adjusted to a convenient extent and then distance, bbetween the wires was measured. The bar was then tilted through a very small angle about the vertical axis and time taken for 20 oscillations of the bar, was recorded.

From this, the periodic time was also calculated. The length L was further adjusted and the time taken for another 20 oscillations was recorded. Then step 3 was repeated but with different values of L. The length of the wire L was then fixed at a value and the time taken was recorded for 20 oscillations at varying distances xbetween the two 1.

The rectangular bar was then detached from the apparatus arrangement and taken to weight balance in order to determine the mass of the bar. The internal diameters of the holes, the thickness of the rectangular were also measured. All measurements and data recorded were collated for experimental analysis. The equation of the angular motion is:. However, Introduction of the two equal masses into the bifilar suspension system can gives rise to a modification of its mechanism and the equation of the angular motion.

This also provides another approach to the determination of the moment of inertia of the body. In this situation the length of the wires are kept constant and the distances between the two equal masses are varied. This is called the auxiliary mass method but for this experiment, our analysis would be on just the generic bifilar suspension approach.Why don't fictional characters say "goodbye" when they hang up a phone? If we can't tunnel through the Earth, how do we know what's at its center?

All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Hottest Questions. Previously Viewed. Unanswered Questions. What r the applications of bifilar suspension? Wiki User Asked in Physics The moment of inertia of a material bar by the bifilar suspension method? Anywhere you need to restrick amps. Asked in Science, Science Experiments, Kinematics What is the theory on bifilar suspension experiment using a meter rule suspended by a thread on it's two ends?

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Walter Lewin demonstrates moment of inertia

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Asked in Science, Literature and Language What are the applications of compression? Compression is used in road vehicles such as Cars, Trucks, etc to even out the bumps in the road as part of the suspension system fitted to the vehicle. Cahn has written: 'spread-spectrum applications and state of the art equipments'.Procedure: Suspend the rectangular block or bifilar pendulum from plane a b by. The experiment is repeated for various loads and the corresponding time.

Where Mo is the mass of the hole bored, Ro is the radius of each hole bored and X is the distance from each hole on either side to the centre of the rectangular bar. Analysis of changes in the Period of a Pendulum. From this, the periodic time was also calculated. Moment of inertia values.

It can be difficult to find out specifically about bifilar pendulums, but there is information available on the worldwide web. Dimensional analysis is a technique used both to check the validity of equations and to find relationship between physical quantities. The seven base units of the SI system. To this effect, it would be useful to draw up suitable tables before you start collecting data. What are the physical dimensions of the left hand side of Equation 1? Schematic of a bifilar pendulum.

bifilar suspension procedure

It is important to note that in most of this practical we will consider the situation where the strings hang vertically, parallel to each other, rather than the situation shown in the diagram where the strings hang in oblique. This topic, and many others related to pendulums can be found in most undergraduate text books.

To what power does this quantity have to be raised? This also provides another approach to the determination of the moment of inertia of the body. What are the physical dimensions of the right hand side of Equation 1?

Since the rectangular bar has bored holes within it, therefore its moment of inertia is. The moment of inertia determined using the analytical approach was approximately equal suspendion the value determined from test 2 in table 2 nifilar. Measurement taken from the rule and the weight balance was done such that the line of sight and the markings of the measuring equipments were in alignment in to reduce errors due to parallax.

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Once again, remember to show the errors bars on your graph. All these and lots more provide the avenue for determining the radius of gyration and the moment of inertia. The general approach for calculating the moment inertia of any type of body about any axis on the body is given as: This rectangular bar contains holes equidistant from each other and two extra with equal masses of 1.

Check your conclusions by dimensional analysis.

bifilar suspension procedure

Newer Post Older Post Home. Derived units can look rather complicated suspejsion expressed in terms of the base units; for convenience, they are often given special names and symbols. In most of this practical, the lengths x and y are to be equal, contrary to what is indicated in the figure. How many swings will you time in order to obtain the period?

Add a trend line and stick the graph in your lab book. Although we have now expefiment all eexperiment exponents, we cannot yet accurately describe the period of the pendulum since we still do not know the dimensionless constant A.

Documents Flashcards Grammar checker. The internal diameters of the holes, the thickness of the rectangular were also measured.During a pillar procedure, the surgeon places three polyester implants into the soft palate at the back of your mouth.

Each implant measures 18 millimeters mm in length — slightly less than an inch — and 1. The pillar procedure is minor surgery intended to relieve habitual snoring and treat mild to moderate obstructive sleep apnea, a potentially serious disorder in which breathing is interrupted repeatedly during sleep. Both snoring and obstructive sleep apnea may result from a relaxation of muscles at the back of your throat. The pillar procedure involves surgically placing small polyester rods in the soft palate.

The subsequent healing of tissue around the implants stiffens the soft palate, thereby reducing relaxation and vibration of the tissue. If you have mild to moderate sleep apnea, you may be advised to try a less invasive, nonsurgical treatment first, such as continuous positive airway pressure CPAP. A CPAP machine uses a face mask to deliver just enough air pressure into your airway to prevent the blockage of airflow.

Some people may need to use CPAP even after undergoing a pillar procedure. As you sleep, muscles relax in the fleshy area at the back of your mouth soft palateas well as in your tongue and throat.

These tissues can relax enough that they vibrate, causing snoring. Snoring can be a nuisance and interfere with your sleep or your bed partner's sleep.

Snoring can also be an indication of obstructive sleep apnea, which is a more serious disorder. When you have obstructive sleep apnea, the muscles in your mouth, tongue and throat may relax so much that they block your airway, causing you to stop breathing or to breathe shallowly, many times a night.

This process can cause sudden drops in the amount of oxygen in your blood, and has been linked to serious health problems, such as high blood pressure and heart disease. Other signs and symptoms of obstructive sleep apnea include restless sleep, frequent awakening, morning headache, choking or gasping after a pause in nighttime breathing, and daytime sleepiness. If you snore or have other signs or symptoms of obstructive sleep apnea, see your doctor.

You'll likely be referred to a sleep specialist or a specialist in ear, nose and throat disorders ENT or otolaryngologist. Studies have reported few complications associated with the pillar procedure. The most commonly reported complication is a tip of an implant protruding through the soft palate tissue partial extrusion.

In that case, the implant can be either removed or replaced. Other potential complications are usually temporary and resolve on their own, often within a week or so after surgery.

They include:. As with any surgical procedure, infection is a possible risk. If you develop a fever after the procedure, contact your doctor. You don't need to prepare for your pillar procedure unless your doctor requests that you start taking antibiotics before your appointment.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It only takes a minute to sign up. I'm an A2 student, and I've been looking into how experimental and theoretical determined mass moments of inertia differ. I've also seen something to do with Lagrangian mechanics? Here are some slides I put together. They may not be completely rigorous but I believe they may help you understand a simplified derivation:.

Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Calculating the moment of inertia in bifilar pendulums Ask Question.

Asked 5 years, 4 months ago. Active 2 years, 11 months ago. Viewed 12k times. Multiple measurements had to be taken in order to fit a parabola to find the period at zero amplitude. Active Oldest Votes. Martin Scott D. But please at least cite the source you have taken the slides from; even if it it is the case that you created those, please mention it explicitly. Stefan Bischof 1, 1 1 gold badge 15 15 silver badges 23 23 bronze badges. The Overflow Blog. The Overflow How many jobs can be done at home?

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