Do you understand the application of surgical drills

Do you understand the application of surgical drills?

In Craniotomy.

Surgical drills are used to lift the skull flap and remove the skull base bone, thereby exposing the underlying neurovascular structure and promoting bone decompression and instrumentation during spinal surgery. The drill bit can be manual or electric. Turn the switch on by manual or electric control. A perforator or acorn bit is used to create an initial hole for the skull. Use a continuous flush when using a surgical saw to prevent bone dust from clogging the drill bit. For fine drilling close to the vicinity of the neurovascular structure, finer drill bits, including coarse and fine drill bits, must be used to avoid errors.

Operational Matters.

During the drilling of the implant site, the mechanical working energy is converted into heat, which causes the temperature of the surrounding bone to rise instantaneously, damaging the surrounding flesh.

Therefore, the interface of the bone drill with sterile saline is to prevent excessive heat generation from the bone during the implant site. At the same time, the bone fragments in the osteotomy are eliminated, and the friction during the drilling process is reduced, thereby helping to reduce heat generation. And the medical cotton should be kept away from the high speed drill bit to prevent them from being caught and causing unnecessary movement of the drill bit and damage to surrounding structures.


The surgical drill bit is a precision instrument that can accommodate a variety of drill bits and is designed to drill the bone to a certain diameter and depth depending on the size of the implant to be placed. Divide them into four groups according to different functions.

  1. Twist bit: the bit adjusts the diameter and depth of the implant housing.
  2. Pilot drill: drill deepens and guides the drilling sequence.
  3. Directional drill: a double diameter drill bit for guiding a drill bit with a diameter of ø 2.80 mm.
  4. Long drill: a pointed drill used to break the cortical bone.
New tools in surgery - bone drill

New tools in surgery – bone drill

A long time ago, people began to use bone cutting in surgery. Bone drilling is now one of the most common cutting tools.

The components of the bone drill:

A bone drilling device is a device designed for orthopedic surgery. Because electric energy can make it speed extremely fast, bone drills are usually electric. The instrument has bone physical drilling power.

The bone drill is made of surgical grade material and can be operated without adversely affecting open wounds. Surgeons using bone drills can save many patients who require bone treatment. A bone drill is used to mount the pin into the patient’s bone and the surgeon may need to drill to secure the pin. This type of surgery is not strictly limited to the repair of a fracture. Bone marrow is also used when bone marrow is extracted from bone, and bone marrow is removed by drilling through small holes in the bone. In general, the cave can gradually fill the new bone according to the body’s ability to regenerate, and the bone drill can easily perform this function. If you use the original hand tools, it can take hours and the chances of successful surgery are small. Now with electric bone drills, the surgery can be completed in a matter of minutes, providing patients with a great chance of survival.

About electric bone drills and manual bone drills:

The advantages of electric bone drills are twofold compared to manual bone drills. Manual bone drilling takes a long time and the surgery is not very precise. Electric bone drills create precise-sized holes in the bone in a fast and rigorous manner, greatly reducing drilling time.

Wuhu Ruijin Medical Co., Ltd. specializes in the development, production, and sales of medical orthopedic drilling tools for more than ten years, including bone drills, hollow drills, high-torque hip drills, and craniotomy drills. If you need to buy, you can contact us.

How to use a cast cutter safely

How to use a cast cutter safely?

A cast cutter is a device that removes cast material without damaging the skin.

Please note the following when operating cast cutter:

  1. Equipment maintenance must be carried out by professional technicians. The continuity of the cast cutter floor should be checked regularly.
  2. The continuity of the cast cutter floor should be checked regularly.
  3. The power cord should always be away from the blade cutting area.
  4. When disconnecting, unplug the cast cutter. Never pull on the power cord. Also, to ensure safety, plug the device into an outlet labeled “Hospital Class.”
  5. Do not operate the equipment in areas where flammable or explosive gases may be present.
  6. Disconnect the power cord before replacing the blade.
  7. Do not autoclave or immerse any liquids.

Also, keep your hands away from the cutting area when operating the device. At the same time, excessive noise is generated during the cutting process, so you should take care to protect your ears.

Practical tips for reducing the risk of cutting or burning skin when removing castings:

  1. A sharp saw blade should be used. Because the extra friction caused by the blunt blade generates a lot of heat.
  2. When the casting is removed, it is filled with a rigid strip of plastic to form a barrier between the saw blade and the patient’s skin. If there is no such device, a wooden tongue depressor can also be used to protect the skin at both ends of the casting.
  3. It is recommended to turn off the equipment regularly until it is sufficiently cooled, especially when cutting hard materials such as fiberglass and castings. Do not risk burning patients.
  4. Where practicable, the bone protrusion should be cut, not cut, to minimize the risk of direct blade contact and thermal damage.
Why use a craniotomy drill during surgery

Why use a craniotomy drill during surgery?

A craniotomy drill is a piece of surgical equipment that is surgically formed into a hole in a skull, also known as a drill bit. Depending on the type of surgery, the craniotomy drill can be used for further surgery or maybe the only injury to the skull. Simply put, this hole is a small hole that is operated by a craniotomy drill on the skull.

Craniotomy drill can be used for a variety of reasons, such as performing a larger craniotomy to allow cerebrospinal fluid drainage or chronic blood drainage. Usually performed under general anesthesia and involves surgical removal of part of the skull.

Craniotomy drill is an essential part of most brain surgery. Why? The skull is very hard and it is impossible to make a traditional incision with a scalpel. Saws can be used to cut bones, but cutting the skull requires special skills and techniques to prevent damage to the brain. Drilling allows controlled cutting in the skull without penetrating trauma to fragile brain tissue.

The drill hole of the craniotomy can be considered as the beginning of the incision for brain surgery, not the surgery itself. The surgeon can place multiple drill holes and then use different tools to connect the holes and lift a portion of the skull, which provides the surgeon with a working window.

Use a craniotomy drill when the brain has problems that must be treated surgically. In order to enter the brain tissue, the skull must be opened to allow access to the brain. In most operations, placing a drill hole in the skull is the best way to treat a disease or injury.

Neurosurgeons use craniotomy drills during craniotomy to enable them to complete various brain diseases and injuries. Some of the most common ones include:

  1. Relieve pressure on the brain
  2. Place a monitor and read the pressure inside the skull
  3. Removing blood clots
  4. Removing tumor
  5. Treating seizures
  6. Remove foreign objects
  7. Place medical devices, such as shunts or chemotherapy wafers

Ruijin specializes in the development, production, and sales of medical devices for more than ten years, including bone drills, hollow drills, oscillating saws, and craniotomy drills, etc. Ruijin is the medical device of choice for your trauma and plastic surgery.

Can be reused medical orthopedic surgery drill bits

Can be reused medical orthopedic surgery drill bits.

Surgical drill bits are used to drill holes in the bone for placement of bone screws during orthopedic surgery involving internal or external fixation. Surgical drill bits are typically available in several different sizes and styles to facilitate their operation.

Surgical drills require fewer steps to simulate surgery, which saves surgery time by a more reliable and accurate method. The availability of state-of-the-art surgical drill bits enables accurate measurement from the outer skin layer to the end of the drill sleeve, which can be judged from the drill bit without the use of a measuring instrument.

This improves the range of surgical drill bits. The use of surgical drill bits is mandatory in surgery, which requires the fixation of bones that cannot withstand large drilling forces.

The material of the surgical drill bit is stainless steel, ceramics, and the like. In theory, as long as it is not in the joint or in a special position such as the passage of the vascular nerve, there is no harm. Stainless steel is the surgeon’s first choice because it has no systemic side effects associated with it and is influenced by the manufacturer due to its low cost and high quality.

I believe many people have read the news about the surgical drill bits left in the body. When the drill bit is deeply stuck in the bone you want to take out it, a doctor will mandatory opening of bones, so that the damage will be greater than not taking out the drill bit, so the doctor will not deal with it.

In fact, it has no essential difference between the screw in the bone. The difference is that the screw can be taken out, but the drill bit cannot be easily taken out. So even if the drill is left in the body, you don’t need to worry.

Ruijin surgical drill bits have these characteristics: heat-resistant coating, high torque carrying capacity, uniform angle and more. If you have any questions, welcome leave message below.

The role of the oscillating saw

The role of the oscillating saw

Heart surgery step 1: Sawing through the sternum. Anesthetic doses given for heart surgeries are standard for any major surgery and have a component of analgesia, sedation, and paralysis.

All cardiac and respiratory parameters are carefully monitored and, once the patient is under, the surgeon gets out the saw.

The heart rests beneath the sternum the organ’s skeletal armor and the central bone to which ribs are attached. Cracking this bone requires pressure, power, and precision (but only about 30 seconds).

The most common type of saw used in heart surgery is an oscillating saw, which moves up and down at a rapid speed and works like a jigsaw, enabling the fine blade to cut curved lines.

Sometimes especially on patients who have had heart procedures done before, surgeons will use a saw that’s like the one used to remove casts. It stops immediately when it senses tissue.

Surgeons cut the sternum either completely or partially, straight down the middle, but they don’t remove it. They then slowly spread apart the cut halves of the sternum with a retractor, something similar to a brace. This allows the entire chest and heart to be open before them.

This is the first and most important step in heart surgery, and the oscillating saw plays a major role in it.

While better oscillating saw and less invasive procedures are all marked advancements in the field, doctors aren’t stopping there.

The most important thing to realize is that we are trying our best to minimize the trauma to the chest to allow patients to recuperate from the surgery a lot faster.

The Uses and features of Surgical Oscillating Saw

The Uses and features of Surgical Oscillating Saw.

Uses and features:

The surgical oscillating saw is one of the irreplaceable power tools for joint surgery. High temperature and high-pressure surgical swing saws have replaced industrial drills that can only be fumigated. A sharp surgical oscillating saw can be used for high temperature and autoclave sterilization. It can withstand temperatures up to 135 ° C and autoclave at 1.6 MPa. Some fumigation cannot kill bacteria and viruses, shorten the disinfection time, only 20 minutes at 135 ° C high temperature and high pressure, which has won valuable time for emergency surgery patients.

The surgical oscillating saw is mainly used for hospital surgery. This instrument is optional. The utility model has the advantages of beautiful appearance, small volume, light weight, no wires, convenient carrying, safe operation and short operation time.

Structure: The surgical oscillating saw consists of a main unit, a charger, and a battery. The outer casing of the product is completely enclosed. The charger is not intended for use as a medical electronic device.


The safe use of medical devices is directly related to the safety of patients and medical device users. Therefore, standards must be established to regulate the development, production, use, and maintenance of medical devices. Therefore, it is necessary to strengthen the maintenance and management of medical devices, improve the maintenance and maintenance of medical devices, extend the service life of medical devices, reduce costs, reduce waste, and improve medical quality.

Here are some maintenance methods for you:

  1. Prevent microscopic duration and timely eliminate the influence of external factors on equipment;
  2. Take preventive measures to prevent emergencies and ensure the safe operation of equipment;
  3. Establish a practical, regular inspection system to detect and eliminate hidden dangers of the device itself.

Ruijin Medical has been committed to the medical-surgical equipment industry for more than a decade. It has developed a range of medical-surgical drill/saw, drill and saw systems. Here you can find the products you want!

About how a cast saw works

About how a cast saw works

  1. How a Cast Saw Works.

Cast saws have a sharp, small-toothed blade that rapidly vibrates back and forth; it does not spin around like a circular saw. Against the firm surface of the plaster or fiberglass, the cast saw will cut through the material. However, against your skin, the cast saw simply moves the skin back and forth with the vibration, not cutting into the skin.

Newer cast saws have become even easier for patients to tolerate. The most significant difference is the noise coming from the motor of the saw. Older cast saws tend to have very noisy motors that can be frightening, especially for children. Newer saws have much quieter motors that cause much less anxiety for patients.

  1. Are Cast Saws Safe?

Cast saws are very safe, but they should only be used by personnel who have been trained in their proper use and how to avoid problems. Improper use of a cast saw, or use of a cast saw that has worn blades, can cause problems. Cast saws are safe, but there are possible complications of their use that can occur.

  1. Making It Easier to Remove the Cast.

Many patients, especially younger children, are frightened of cast saws, but there are some things that can be done to make the experience less traumatic.

Explain to kids what is happening. Don’t let the doctor or cast tech rush in and start removing the cast without showing the patient the equipment and how it works. Fear of the unknown is usually much worse than the fear of the saw.

Show the patient that the saw will not cut the skin. Skin lacerations are the most common fear, and demonstrating that the saw will not cut your skin can help. I always press the blade of the running cast saw against my hand to demonstrate that it’s safe.

Bring headphones. A cast saw can be noisy, and often the noise is more upsetting than the actual feeling of the saw. Earmuffs, headphones, or a noise-canceling device can help. Often kids will enjoy listening to music while the cast is being removed.

The application of bone saw and bone saw surgery

A bone saw or saw a cutter is a group of tools used to penetrate or amputate bone. Since amputation did not become a surgeon’s job until the mid-19th century, so bone saws are one of the most commonly used tools for surgeons and the most important part of all their tools, although scalpels are now the most commonly used tool for surgeons.

Bone saws or bone saw blades and reciprocating blades are typically used to cut small and large bones in a way that enables the best surgical outcome for the patient.

There are several different bones saw surgery:

  1. Unpowered – Unpowered bone cutting implements include varieties of hacksaw and saber saw. In many applications, the saw is used in specialized jigs to provide accurate, measurable cuts, e.g. in knee surgery.
  2. Specialized saws such as the Gigli saw, a cable made of sharp strands of wire, are also used in some procedures.
  3. Reciprocating – Usually a powered rotary oscillation is applied to a specialized cutting implement to provide smooth controllable cuts into bone, for applications, from skull cutting to rib cutting, which is usually used where precision is necessary.
  4. A sternal saw is a reciprocating bone cutter, used for cutting through the sternum during chest surgery.

If you want to know more or other products, please choose to WUHU RUIJIN MEDICAL INSTRUMENT&DEVICE CO., LTD.

Ruijin specialized in R&D, production, and sale of Medical/Orthopedic drill for more than 10 years, include bone drill, cannulated drill, high torque hip joint drill, craniotomy drill, etc. Ruijin is your first choice for trauma, orthopedics, and sports medicine.

Do you know the electric gypsum saws

Do you know the electric gypsum saws?

First, product composition and use.

The electric gypsum saw is composed of the electric main machine, transmission shaft, bushing, eccentric shaft, bearing, transmission clamp, circular saw blade, linear saw blade and casing, front cover, fixing screw, power cord, and wire plug. The product is used to remove plaster bandages on patients.

Second, characteristics.

Features strong power, light design, stable operation, low vibration, low noise, safe and reliable.

Third, how to use the electric gypsum saw.

  1. Before use, check if the saw blade is flat and whether the installation is firm. When installing the saw blade, simply tighten the cap with the 5mm hex wrench in the clockwise direction.
  2. Before the operation, after the electric gypsum saw is disinfected with formalin, the main switch is turned on to start the machine.
  3. When working, the machine sets the speed control switch, selects the cutting position according to different materials.
  4. When working, grasp the electric gypsum saw and slowly place it on the plaster to be cut. Vertical gypsum face cutting and do not cut it to the bottom.
  5. Vertical gypsum face cutting, lift it forward, then slowly place it in the lower section to be removed, and repeat the above process until the task is completed.

Fourth, note:

1.When the power plug is plugged into the power socket, close the power switch of the electric gypsum saw to prevent danger.

  1. When using, check whether the saw blade is flat, whether it is missing teeth, and whether the installation is firm.
  2. Do not use excessive pressure during use. Appropriate pressure should be applied when the saw blade has oscillated.
  3. When the saw blade suddenly gets stuck in the gypsum cutting part, the power should be cut off, Instead of repeatedly switching, so that the motor load suddenly increases or decreases, and the motor is easily damaged.
  4. During operation, If the temperature of the casing is overheated, it should be suspended. Use it after cooling, otherwise, the motor will easily cause overheating and burn.