Use of swinging bone saw

Use of swinging bone saw

Swing Bone Saw Function.

Handle use: special handle for medical operation, automatic disinfection. The combination of precision machining and precision assembly ensures the internal quality of the entire machine and feels comfortable. We offer professional saw blades for easy operation.

Battery: the battery is safe and reliable, small in size and high in energy. Long life, no need to charge memory. Please note that it must be cooled before use. It must be cooled before charging.

Charger: charge within 3 hours to ensure battery life.

Mainframe: made of high-quality materials, powerful, lightweight, low noise, compact, durable, variable speed trigger, easy to disinfect and maintain, autoclavable to 135oC.

Swing Bone Saw Operation.

Battery charging: connect the charger to the power source. With the battery head facing down, align the alignment slot on the battery with the battery location on the charger and insert the battery into the charger.

Battery loading: hold the handle and lift the handle up. Push the knob to the “on” position and open the handle cover. Keep the battery with sterile gauze. Insert the battery into the handle in the direction of the arrow. Align the alignment slot with the position key inside the handle. Remove the isolation channel and cover the battery. Close the handle.

Saw blade loading and unloading: Press the lock to release the clip, release the fastener lock, and load the saw blade; push the fastener lock up to remove the blade.

Bone saw operation: insert the battery as described in the steps. Hold the handle and press and hold the chronograph button. As power becomes stronger, the speed will become faster and faster. When the button is fully pressed, the bone saw will run at full speed. The saw will stop working immediately after the button is released.

With more than 10 years of export experience, Ruijin specializes in the research, design, production and sales of power tools for orthopedic surgery. Our main products are orthopedic surgical power tools, including medical bone drills, hollow saws, rotary saws, reciprocating saws and medical electric plaster saws. The second part is the micro medical electric grinding series. You can find the products you are most satisfied with here.

The effect of using a bone saw

In the past, Gigli and manual saws were used. It has now been replaced by pneumatic and electric saws. Over the years, bone saw blades have been significantly improved in manufacturing and design to improve accuracy and reduce the side effects of bone cutting. Despite the progress, there are still many adverse effects. E.g:

  1. Saw blade heating

Friction generates a lot of heat, and too much heat can damage the meat and cells around the saw blade. Interestingly, however, they found that brine irrigation during the cutting process had little effect on temperature.

  1. Vibration frequency

Pneumatic and electric hand-held bone saws generate vibrations, and this cumulative effect can be harmful. Because the vibration of too high frequency will make the numbness of the arm lose its perception.

We know that the amount of vibration and daily use time when using large industrial tools is significantly higher than the amount of vibration generated during sawing during surgery. However, we still need to further evaluate the long-term cumulative effect of using a vibration tool to obtain a definitive answer because it represents a potential hazard.

  1. Produce noise

High levels of noise can impair hearing ability and affect speech recognition. However, some researchers have shown that although the sound level of the instrument ranges from 19.6 dB to 73.1 dB within 3 meters, the exposure frequency is small, so the staff has no effect on hearing and speech loss.

Finally, there is no evidence that the noise generated during surgery is a direct cause of hearing loss or speech difficulties. In summary, the noise generated during surgery is a potential risk for further research.

  1. Cutting errors and debris

Inaccurate cutting due to blade and cutting block groove design or operator error can have an adverse effect. Cutting errors will affect implant alignment, which can have serious long-term effects. Bone and metal fragments generated during the cutting process accelerate wear.

Using appropriate blade thicknesses and properly matched retention slots will alleviate these problems. Therefore, the best bone saw blades can provide accurate bone cutting without generating too much heat, vibration and noise.

Visit Us at The TIHE 2019

Visit Us at The TIHE 2019

For the past 20 years, TIHE has been Uzbekistan’s main medical exhibition. It is a place for professional meetings and discussions between government representatives, producers of medical equipment and supplies, scientists and practising doctors.

It is the only medical exhibition in Uzbekistan approved by UFI, the Global Association of the Exhibition Industry.

Visit Us at The TIHE 2019

Exhibition Location: UZEXPOCENTRE – TASHKENT

Booth No.: B70

Date: 16th-18th April, 2019

In China, Ruijin medical is one of the largest medical device manufacturers, and we will showcase our newly researched medical device products through this TIHE 2019 annual meeting. We have a wide range of products: medical drillmedical sawmultifunctional systemmedical accessoriescutting tools, and more.



Applied to joint surgery surgical oscillating saw

The types of the medical bone saw include:

  1. No power system

In the past, people’s medical technology was not developed. In the face of orthopedic surgery, people only invented some simple surgical bone cutting tools. It includes a variety of unpowered hacksaws and saber saws.

  1. Sonic cutting

The sonic cutter is still in the process of experimentation, it is a device that uses sound to cut. The material (bone) is cut by high frequency, high amplitude sound. Acoustic wave cutters have always been the focus of attention.

  1. Reciprocating motion

This type of bone cutting device is applied to a specialized cutting tool by rotating vibration to provide a smooth and controllable bone incision. The reciprocating bone cutter is used for various applications from skull cutting to rib cutting. The surgical oscillating saw is a reciprocating bone cutting machine.

About surgical oscillating saw:

The surgical oscillating saw is mainly used for joint type surgery and is divided into knee joint and hip joint in joint surgery. When performing bone surgery and treatment, the surgeon uses a surgical oscillating saw to cut the bones of the injured or damaged area to purify the end face of the bone. This kind of bone is more efficient and accurate than the traditional manual equipment, and can effectively meet many needs in the operation.

Wuhu Ruijin Medical Instrument & Device Co., Ltd. is a large-scale, full-range medical device manufacturer.

The main products are:

  1. Medical electric drill series, including medical bone drill, a hollow drill, pendulum, reciprocating saw, and medical electric plaster saw.
  2. Micro medical electric grinding drill series.

If you need a surgical oscillating saw or other medical devices, you can contact us.


How to use a sternum saw during surgery?

Open surgery is a traditional type of surgery in which a scalpel is used for the incision. You may have seen a surgeon perform an incision on a TV or movie and then perform surgery through a large incision. Surgery, such as with a sternum saw, is an open procedure that can range from 3-4 inches to very large, depending on the procedure being performed. Modern medical technology developed in science and technology has created minimally invasive surgical techniques that involve smaller incisions or even (in some cases) no incisions at all. multiple incisions less than one inch in length, with a small incision inserted into the instrument, allows the surgeon to view the operation on a large monitor, just like playing a very technical video game.

For example, maze surgery is an operation for controlling atrial fibrillation, which is irregular heart disease. Maze surgery may be an appropriate treatment If it cannot be controlled by medication or other treatments. Its name comes from the linear scar that remains in the ventricle after surgery, just like a maze. This procedure can be accomplished by open heart surgery using a sternum saw or by minimally invasive surgery using a catheter that passes through the large blood vessels of the groin. At present, some specialist hospitals are carrying out minimally invasive techniques, which are relatively new.

The surgery begins with general anesthesia. Once the anesthesia is effective, the patient will breathe with the help of the machine and the surgeon can begin by making a sternal incision. Use a sternum saw to cut the sternum into two parts and separate the bones vertically. This allows the surgeon to enter the heart directly. Surgeons can now use a variety of tools to destroy unwanted pathways that cause electrical impulses to the heart, such as scalpels, or very hot or very cold instruments. Once the surgeon determines that all pathways are scarred, the sternum is closed and supported with a sterile surgical line so that it can heal normally.

After labyrinth surgery, you can spend a day or more in the ICU or heart care area and monitor closely. Unlike most surgeries, no medication is given to awaken the patient’s anesthesia. Instead, anesthesia can disappear within a few hours. Patients with minimally invasive surgery typically monitor the ICU for several days but can resume normal activities and work faster than patients with open heart maze surgery. Incision care is important to prevent infections this week and the following weeks.

Minimally invasive surgery usually requires less treatment time than traditional open surgery, but some operations can only be done with open surgery. Your surgeon will be able to explain which type of surgery is best in your own situation and can help you make the decision that is most likely to lead to optimal surgery.

Visit Us at Istanbul International Medical Laboratory Exhibition

Visit Us at Istanbul International Medical Laboratory Exhibition

The essential business platform of the medical industry that brings together hundreds of domestic and international medical companies every year, Expomed Eurasia is set to welcome tens of thousands of industry professionals at Tüyap Fair & Congress Center in Büyükçekmece, Istanbul for the 26th time from March 28 to 30.

Welcome to visit:

FAIR NAME:Expomed Eurasia, International İstanbul Medical Analysis, Diagnosis, Treatment, Rehabilitation, Laboratory Product, Device, System, Technology, Equipment and Hospitals Fair

PLACE:Tuyap Fair Convention and Congress Center – Buyukcekmece / ISTANBUL


DATE:28 – 30 March 2019

Ruijin is one of the leading companies in China’s medical device industry with more than 12 years of export experience. At the show, we will showcase the latest products. We have a wide range of products:medical drillmedical sawmultifunctional systemmedical accessoriescutting tools, and more.

Buyer committees from Middle East, CIS Countries, North Africa and Balkans will be holding B2B meetings throughout the 3 day event.Ruijin Medical looking forward to your arrival!

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.