A grinding drill assembly for orthopedic surgeons

Abstract

The present invention discloses a grinding drill assembly for orthopedic surgeons, comprising a main body structure and a convex ring sleeved thereon. The main body structure is made of an integral mold, a channel for water circulation is provided in the main body structure, a protrusion is provided on the convex ring, the protrusion has a hole, the hole is connected with the channel to form a passage, which can achieve energy conservation and environmental protection, reduce production costs, and reduce the burden on medical patients. During the treatment process, the grinding drill bit is used to drill holes, and the hard plastic convex ring is used to grind and clean the bone holes. The water supply device can cool the drill bit and clean the residue in the bone holes, which can further reduce the patient's pain.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a grinding drill assembly for orthopedic surgeons. Background Art

[0002] Fractures are a common injury that occurs in human activities. They are usually manifested by the patient's bones being dislocated after they are broken, which makes it difficult for the bones to heal or the bones heal in a bent state, leading to sequelae. Therefore, the treatment of fractures requires the use of splints to reposition and align the broken bones. However, if the broken bones are not removed in time, they can easily scratch the nerves and blood vessels around the bones, causing damage.

[0003] With the development of technology, fractures can be healed through surgery. Generally, during fracture treatment surgery, doctors cut open the human body to remove the broken bones, then use an electric drill to drill holes in the bone where treatment is needed, and install steel plates on the bones with screws to connect and fix the broken bones, so that the bones can heal.

[0004] The problems existing in the prior art are: first, the electric drill will produce a large amount of small bone fragments when drilling, but the existing electric drill does not have a cleaning function, which easily leads to some bone fragments remaining and mixing with human tissue, affecting wound healing.

[0005] Secondly, electric drills are commonly used to remove bone during surgery, but the process of grinding bone with an electric drill generates a large amount of heat, which can cause bone necrosis and burns to surrounding tissues. During bone grinding with an electric drill, cold water is often dripped onto the drill bit to cool the high-speed drill bit. This process requires automatic flow control of the water pipe. However, current automatic control devices use extrusion-type infusion pumps to control the opening and flow of the water pipe. There are no dedicated water pipes for drill drip cooling, and surgical drainage tubes are typically used for this purpose. Conventional drainage tubes are easily broken by frequent squeezing, and the flow rate is difficult to control. Regarding the above-mentioned prior art, the inventor believes that currently commonly used electric drills grind the patient's diseased bones too violently during use, easily causing cracks and damage. Bone debris can easily be pushed deep into the hole by the electric drill, causing blockage. Furthermore, the heat generated by the electric drill during operation can affect the patient's bone recovery, leaving safety hazards for later treatment. Summary of the Invention

[0006] In order to achieve energy conservation and environmental protection, reduce manufacturing costs, enhance the neatness and strength of the electric drill, and make the patient's affected area more comfortable during use without causing significant damage and thoroughly cleaning the affected area of ​​debris, the present invention provides a grinding drill assembly for orthopedic surgeons, which is implemented by the following technical solutions:

[0007] A grinding drill assembly for orthopedic surgeons includes a main body structure and a convex ring set thereon. The main body structure is made of an integral mold. A channel for water circulation is provided in the main body structure. A protrusion is provided on the convex ring. The protrusion has a hole. The hole is connected to the channel to form a passage.

[0008] Furthermore, there are at least two protruding rings, which are detachably mounted on the main body structure. A hole is provided on each protrusion. The protrusion and the protruding ring are made of hard plastic. Wear-resistant material is added to the hard plastic, and the protruding ring and the protrusion are made into one piece.

[0009] Furthermore, the main body structure includes a blade, a first limiting portion, a second limiting portion, and a handle portion, wherein the blade is a truncated cone structure, the first limiting portion is arranged at the end of the blade with a small cross-section, the second limiting portion is arranged at the end of the blade with a large cross-section, and the handle portion is arranged at the end of the second limiting portion away from the blade. The blade, the first limiting portion, the second limiting portion, and the handle portion are made in an integral molding manner, and the main body structure is made of nickel-titanium alloy, high manganese steel, or stainless steel.

[0010] Furthermore, the first limiting portion is a conical structure, the circular bottom surface of the cone is connected to the end of the blade, the radius of the circular bottom surface of the cone is larger than the radius of the small cross-section end of the blade, and the surface of the first limiting portion is provided with a groove.

[0011] Furthermore, the second limiting portion is a truncated cone structure, and the radius of the truncated cone is larger than the radius of the end portion of the large cross-section of the blade portion.

[0012] Furthermore, a number of convex rings are provided on the blade, and the holes in the convex rings are frustum-shaped. The holes match the surface of the blade, and the radius of the convex rings is also adapted to the radius of the blade where it is located, that is, the radius of the convex rings increases as the radius of the blade increases. The surface of the blade is roughened or notched, and the surface inside the convex rings that contacts it is also polished to enhance friction and prevent slipping during use, thereby achieving a better polishing effect.

[0013] Furthermore, the height of the blade is the sum of the heights of several convex rings.

[0014] Furthermore, a channel for water circulation is provided in the main body structure, and the channel includes a longitudinal channel and several transverse channels. The transverse channels are connected to the longitudinal channels. The transverse channels are evenly distributed on the circumference of the blade portion. A radial channel connected to the transverse channel is provided on the convex ring, and the radial channel is connected to the raised hole.

[0015] Furthermore, the radial channels and the holes on the protrusions are in one-to-one correspondence.

[0016] Furthermore, it also includes a pipe connected to the main body structure, and the main body structure can rotate around the pipe with the water flow direction as the axis. The other end of the pipe is connected to a water pump, and the water pump can inject water into the passage and absorb water. During the use of the drill, water can be sprayed from the raised hole position, and blood stains inside the bone hole can be sucked to absorb residues, while the drill can be cooled in real time.

[0017] The beneficial effects of the present invention are as follows:

[0018] Compared with the existing grinding drills, the present invention has strong adaptability, ensures installation efficiency and precision, and its detachability can achieve environmental protection requirements and reduce construction costs.

[0019] 1. The integrated structure of the drill body can enhance the overall structural strength, increase the maximum torque of the cone, and eliminate the risk of cone breakage during use.

[0020] 2. The convex ring structure is set on the grinding drill in a detachable manner. The convex ring is made of elastic and wear-resistant hard plastic. In the set, the convex ring with a large diameter can be passed through the first limit part, and then the convex ring with a small diameter can be inserted until all the cutting edges are inserted into the set. The first limit part and the second limit part are used to limit the displacement of the convex ring to ensure that it does not fall off during use. At the same time, after use, the convex rings can be unloaded one by one from the first limit part. The disassembled convex rings are easy to clean and disinfect, and can be used and recycled many times, reducing production costs while achieving energy saving and environmental protection.

[0021] 3. The convex ring is set on the grinding drill. By setting the protrusion on the convex ring, the inside of the bone and the wall of the bone hole can be thoroughly cleaned and polished, the protrusion is removed, and a complete and smooth inner cavity is formed. The worn convex ring can be taken out and replaced from the first limit position, and the new convex ring is set on the main body structure. The main body structure can be reused many times, reducing costs and achieving energy-saving and environmental protection effects, while also reducing the medical burden on patients.

[0022] 4. The convex ring is made of elastic and wear-resistant hard plastic, and wear-resistant materials are added inside it to further enhance its wear resistance. The hard plastic convex ring is used to grind bones more gently, and will not cause large cracks and large bruises. The bone opening treatment is more comfortable.

[0023] 5. The surface of the first limiting portion is provided with grooves, which can realize grinding or drilling of bones when the grinding drill rotates.

[0024] 6. The channel set in the main body structure of the drill, the hole opened on the convex ring, and the pipes and water pump connected thereto are used to spray water from the holes through the water pump to further achieve a thorough cleaning and grinding of the inside of the bone hole and the inner wall of the bone. Secondly, the water pump is used to suction from the holes to absorb the residue inside the bone and the bone hole wall, and take it out of the body along with the drill.

[0025] 7. The water spray device can cool the drill bit during the grinding and drilling process, protecting the patient in real time and reducing the risks in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the drill grinding structure of the present invention;

[0028] Figure 2 Schematic diagram of the convex ring structure of the present invention;

[0029] In the figure: 1, main body structure, 1-1, blade part, 1-2, first limiting part, 1-3, second limiting part, 1-4 handle part, 2, convex ring, 3-1, longitudinal channel, 3-2, transverse channel, 3-3, radial channel, 3-4, pipeline, 3-5, water pump, 3-6 protrusion. DETAILED DESCRIPTION

[0030] The following description of the embodiments will help the public better understand the present invention. However, the specific embodiments given by the applicant cannot and should not be regarded as limiting the technical solution of the present invention. Any changes in the definition of components or technical features and / or any formal but not substantial changes in the overall structure should be regarded as the scope of protection defined by the technical solution of the present invention. Figure 1-2 This application is further described in detail.

[0031] Technical solution 1, a grinding drill assembly for orthopedic surgeons, referring to Figure 1, including a main body structure 1 and a convex ring 2, a plurality of sleeves are provided on the blade 1-1 and a plurality of convex rings 2 are provided, the main body structure 1 is made of one-piece molding, a channel for water circulation is provided in the main body structure 1, a convex ring 2 is provided with a convex 3-6, the convex 3-6 has a hole, and the hole is connected to the channel to form a passage; the main body structure 1 includes a blade 1-1, a first limiting portion 1-2, a second limiting portion 1-3, and a handle portion 1-4, wherein the blade 1-1 is a truncated cone structure, the first limiting portion 1-2 is provided at the small cross-section end of the blade 1-1, the second limiting portion 1-3 is arranged at the large-section end of the blade 1-1, and the handle 1-4 is arranged on the end of the second limiting portion 1-3 away from the blade 1-1. The blade 1-1, the first limiting portion 1-2, the second limiting portion 1-3, and the handle 1-4 are made in an integrally formed manner. The first limiting portion 1-2 is a conical structure, and the circular bottom surface of the cone is connected to the end of the blade 1-1. The radius of the circular bottom surface of the cone is larger than the radius of the small-section end of the blade 1-1. The surface of the first limiting portion 1-2 is provided with notches for grinding the inner wall of the bone and drilling during use; The second limiting portion 1-3 is a truncated cone structure, and the radius of the truncated cone is larger than the radius of the large-section end of the blade 1-1; the material of the main body structure 1 is nickel-titanium alloy, high-manganese steel, or stainless steel; the height of the blade 1-1 is the sum of the heights of the convex rings 2, and the number of the convex rings 2 can be reasonably selected according to needs; a channel for water circulation is provided in the main body structure 1, and the channel includes a longitudinal channel 3-1 and several transverse channels 3-2, and the transverse channels 3-2 are connected to the longitudinal channel 3-1, and the transverse channels 3-2 are evenly distributed on the circumference of the blade 1-1, and the convex ring 2 is provided with a channel connected to the longitudinal channel 3-1. The transverse channel 3-2 is connected to a radial channel 3-3, which is connected to the hole of the protrusion 3-6; the radial channel 3-3 and the holes on the protrusion 3-6 are in a one-to-one correspondence; and the main structure 1 also includes a pipe 3-4 connected to the main structure 1. The main structure 1 can rotate around the pipe 3-4 with the direction of water flow as the axis. The other end of the pipe 3-4 is connected to a water pump 3-5, which can inject water into the passage and absorb water. During the use of the drill, water can be sprayed from the hole of the protrusion 3-6, and blood stains and residues can be sucked out from the bone, while the drill bit can be cooled in real time. The connection between the drill and the pipe is a rotatable connection, which ensures water tightness while also allowing the drill to rotate at high speed. Preferably, the pipe 3-4 and the end of the drill are connected by an axial connection (not shown in the drawings).

[0032] Reference Figure 2 There are at least two convex rings 2, which are detachably mounted on the main body structure 1. Due to their certain elasticity, they can be inserted and removed from the first limit portion, which is convenient for cleaning and replacement. A number of protrusions 3-6 are provided on the convex ring 2, and each of the protrusions 3-6 is provided with at least one hole. The convex ring 2 and the protrusion 3-6 are made of hard plastic, and wear-resistant material is added to the hard plastic, which can be prepared in an integrated manner. The hole in the convex ring 2 is a truncated cone type, and the hole matches the surface of the blade 1-1, wherein the radius of the convex ring 2 is also adapted to the radius of the blade 1-1 where it is located, that is, the radius of the convex ring 2 increases with the increase of the radius of the blade 1-1, which further makes it more precise and accurate when grinding the bone head.

[0033] Technical solution 2 has the same structure as technical solution 1, with the only difference being that the holes are evenly distributed on the surface of the convex ring 2, and the holes are not set on the protrusions 3-6.

[0034] Technical solution three has most of the same mechanisms as technical solution one, the only difference being that notches are provided on the convex ring 2 instead of protrusions 3-6, and holes are evenly distributed on the convex ring 2, and the holes are connected with the channels to form a water path, thereby realizing cleaning and adsorption operations during bone drilling and grinding treatment, ensuring thorough cleaning without leaving any debris.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the structure of the present invention in any form. Any simple modification, equivalent change or modification of the above embodiment based on the technical essence of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A grinding drill assembly for orthopedic surgeons, comprising a main body structure and a raised ring fastened thereto, characterized in that: The main body structure is made of an integral molding, and a channel for water circulation is provided in the main body structure. A protrusion is provided on the convex ring, and a hole is provided on the protrusion. The hole is connected to the channel to form a passage. There are at least two protruding rings, which are detachably mounted on the main body structure. Each protrusion is provided with a hole. The protrusion and the protruding ring are made of hard plastic, and wear-resistant material is added to the hard plastic. The main body structure includes a blade, a first limiting portion, a second limiting portion, and a handle portion, wherein the blade is a truncated cone structure, the first limiting portion is arranged at the end of the blade with a small cross-section, the second limiting portion is arranged at the end of the blade with a large cross-section, and the handle portion is arranged at the end of the second limiting portion away from the blade portion. The blade, the first limiting portion, the second limiting portion, and the handle portion are made in an integral molding manner, and the main body structure is made of nickel-titanium alloy, high-manganese steel, or stainless steel. The first limiting portion is a conical structure, the circular bottom surface of the conical structure is connected to the end of the blade, the radius of the circular bottom surface of the conical structure is larger than the radius of the small cross-section end of the blade, and the surface of the first limiting portion is provided with a groove; A channel for water circulation is provided in the main body structure, and the channel includes a longitudinal channel and several transverse channels. The transverse channels are connected to the longitudinal channels. The transverse channels are evenly distributed on the circumference of the blade portion. A radial channel connected to the transverse channel is provided on the convex ring, and the radial channel is connected to the raised hole.

2. The grinding drill assembly for orthopedic surgeons according to claim 1, characterized in that: The second limiting portion is a truncated cone structure, and the radius of the truncated cone is larger than the radius of the end portion of the large cross-section of the blade portion.

3. The grinding drill assembly for orthopedic surgeons according to claim 1, characterized in that: A plurality of convex rings are arranged on the blade portion, the holes in the convex rings are in the shape of a truncated cone, and the holes match the surface of the blade portion.

4. The grinding drill assembly for orthopedic surgeons according to claim 3, characterized in that: The height of the blade is the sum of the heights of several convex rings.

5. The grinding drill assembly for orthopedic surgeons according to claim 1, characterized in that: The radial channels correspond to the holes on the protrusions in a one-to-one manner.

6. The grinding drill assembly for orthopedic surgeons according to claim 1, characterized in that: It also includes a pipe connected to the main body structure. The main body structure can rotate around the pipe with the water flow direction as the axis. The other end of the pipe is connected to a water pump. The water pump can inject water into the passage and absorb water. When the grinding drill assembly is in use, it can spray water from the raised hole position, suck blood stains inside the bone hole, absorb residue, and cool the grinding drill at the same time.

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