Frequently Asked Questions
What surgical technique should be used with the Windsor Knife?
The surgical technique that should be used with the Windsor Knife is the two or three plane wound construction technique. The three plane technique is described below.
Architectural approach of three plane wound construction.
The Windsor Knife configuration allows for precise repeatable wound construction in eye surgery.
The first step to making a good incision with the Windsor Knife is to recognise that the blade has a different profile and needs to be used in a slightly different way from conventional knives.
Firstly, after the initial entry into the cornea at a steep angle, the blade has to be held flat against the globe to allow the blade to start the incision in the correct position. The blade is then pushed forward until the end of the triangular bevel is reached. The handle should then be lifted until the tip of the blade is pointing to the centre of the pupil to allow entry into the anterior chamber. Once the anterior chamber has been penetrated, push the blade parallel to the iris. Using this method of incision, the knife will by design create a near square self-sealing wound.
The nature of the wound architecture created by correct use of the Windsor Knife will reduce considerably the need for stromal hydration.
1. Stabilise the globe by use of the side port.
2. Allow the point of the blade to penetrate corneal tissue.
3. Position the Windsor Knife flat to the globe.
4. Advance the Windsor Knife to the end of the triangular bevel.
5. Lift the heel until the tip of the Windsor Knife is pointing to the centre of the pupil to enter the anterior chamber.
6. Flatten the Windsor Knife until it is parallel to the iris.
7. Push the knife forward through the cornea past the widest point of the Windsor Knife.
1. The patient should be asked to look down to their toes.
2. Stabilise the globe by use of the side port.
3. Allow the point of the blade to penetrate corneal tissue.
4. Position the Windsor Knife flat to the globe.
5. Advance the Windsor Knife to the end of the triangular bevel.
6. Lift the heel until the tip of the Windsor Knife is pointing to the centre of the pupil to enter the anterior chamber.
7. Flatten the Windsor Knife until it is parallel to the iris.
8. Push the knife forward through the cornea past the widest point of the Windsor Knife.
What is B.S.T.?
B.S.T. (Blade Support Technology)
The B.S.T. has been designed to support the blade making it more rigid and less flexible when cutting through tissue. Without B.S.T. the flexing of the blade absorbs energy much like the action of a spring. Using B.S.T. effectively reduces energy absorption and transfers more energy to the tip of the blade. The overall effect of the energy transfer to the blade tip allows even pressure ensuring smoother penetration and better wound architecture and construction.
What size of Bimanual handpieces are available?
We have two sizes available; 20 gauge and 21 gauge. Each gauge is available with either open ended or dual sideport irrigation cannula and a choice of polishing or non-polishing tips to the aspiration cannula. We have designed a complimentary Windsor Knife for sideport incisions in both 20g and 21g.
What size of Coaxial I/A are available?
We have four sizes available; 19 gauge, 20 gauge, 21 gauge and 23 gauge. These are available in both 45 degree, 65 degree angled tip and curved with a choice of polishing or non-polishing tip. We have designed a complimentary Windsor Knife for main wound incisions in 2.75mm and 2.85mm for the 20 gauge, 2.2mm for the 21 gauge and 2.0mm -1.8mm for the 23g auge Coaxials.
Can we supply and repair phaco handpieces?
Yes, we supply several makes of compatible phaco handpieces at very competitive prices. We can also offer an excellent repair service for most makes of phaco handpieces.
Can I enlarge photographs on the website?
Yes in most cases you can enlarge the photographs and use F5 to refresh. Please remember that photographs and editorial copy may not be used without written permission.
Theatre Chairs & Stools Information
The vinyl we use is impregnated with anti bacterial agents during the manufacturing process and an anti fungal backing is used on the material. The Five Star base of the chair is strengthened by a T bar which makes it very easy to clean. This is superior to the base that is normally used with office furniture which has a honeycomb effect underneath to strengthen it, which provides a perfect place for bacteria to breed. Murray’s bases are also light in colour so that any dirt, blood, and bodily fluids are easy identified and cleaned; some trusts use the light material colours that we offer to identify any cleaning needs. We even upholster the underside of the chair for easy cleaning.
In addition our chairs are 100% Latex free including the castors.
Weight capacity - Gas cylinder
Cylinders have been tested to hold a weight of 22 stones but this may be increased if required.
Detail are available on request.
The seat pad tilts back and forth to enable pelvic movement, which helps promote a good neutral spinal position.
On all models, where applicable, except the SGEM-GT,the back rest and the seat pad can be independently adjusted and used in a free floating position or locked.
Spring loaded adjustable movement.This can be in a free floating position, which means, as the operative leans back and forth, the back rest will move with them providing continued support; alternatively it can be locked into position.
How do these chairs & stools help with posture?
The seating is ergonomically designed to promote the best posture possible. This is achieved by the shaping of the chairs and high quality chassis that offer full and independent adjustment providing one chair that suits 90% of clinicians within a department.