A bone drill apparatus for orthopedic surgery that can recover bone chips

Abstract

The application relates to the technical field of medical devices, and discloses a bone surgery drill equipment capable of recycling bone fragments, which comprises a shell, a power machine is fixedly installed at the top of the shell, the power machine outputs a torque and drives a transmission shaft to rotate when the power machine operates, a transmission shaft is fixedly installed at one end of a power machine output shaft, a negative pressure pipe is fixedly installed at the bottom of the transmission shaft, helical fins are arranged on the outer surface of the negative pressure pipe, and negative pressure holes are arranged on the outer surface of the negative pressure pipe between the helical fins. During the movement of the power machine, the transmission shaft and the ring gear rotate synchronously and in opposite directions, and under the transmission action of the inner sleeve and the rotating rod, the first drill grinding ball and the second drill grinding ball are synchronously and reversely driven to rotate, so that the vibration of the torque difference and the deflection force can be offset, the friction force generated by the first drill grinding ball and the second drill grinding ball when contacting with the bone is parallel and opposite, and can also be offset, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of medical devices, in particular to a bone surgery drill equipment capable of recycling bone debris. BACKGROUND

[0002] When treating orthopedic patients, the bone surface needs to be polished to expose the internal lesion. A traditional drill device is composed of a motor, a handheld shell and a drill ball. During operation, the motor drives the drill ball to rotate at high speed, which is in contact with the bone surface and polishes it, and generates bone debris. However, in actual use, the deflection torque generated by the high-speed rotating drill ball and the friction generated when the drill ball contacts the bone will jointly affect the accuracy of the operation of medical staff, and the generated bone debris cannot be collected. After the lesion is treated, the bone debris needs to be collected and backfilled on other bones of the patient, which makes the operation more complex. To solve the above problems, the application provides a bone surgery drill equipment capable of recycling bone debris. SUMMARY

[0003] The application provides a bone surgery drill equipment capable of recycling bone debris, which has the advantages of balancing the vibration and friction generated when the drill ball rotates, and solving the problems of deflection torque and displacement caused by friction during operation of the device.

[0004] To achieve the above-mentioned purpose, the application adopts the following technical scheme: a bone surgery drill equipment capable of recycling bone debris, comprising a shell, a power machine fixedly installed on the top of the shell, the power machine outputs torque and drives the transmission shaft to rotate when the power machine operates, a transmission shaft fixedly installed on one end of the power machine output shaft, and the transmission shaft located inside the shell, a planetary transmission gear provided on the top of the inner wall of the shell outside the transmission shaft, a reverse ring sleeved on the outer surface of the transmission shaft close to the top, a suction pipe provided on the outer surface of the shell close to the top, a guide pipe sleeved on one end of the suction pipe, and the guide pipe connected with a negative pressure collecting device at one end.

[0005] Further, a negative pressure pipe is fixedly installed at the bottom of the transmission shaft, a spiral fin is arranged on the outer surface of the negative pressure pipe, a negative pressure hole is arranged on the outer surface of the negative pressure pipe between the spiral fins, a lower shaft sleeve is fixedly sleeved on the outer surface of the negative pressure pipe close to the bottom, a first polishing device is movably installed at the bottom of the lower shaft sleeve, a driving gear is arranged on the outer surface of the transmission shaft close to the top, and an upper shaft sleeve is arranged on the outer surface of the transmission shaft below the driving gear.

[0006] Specifically, the negative pressure holes are arranged in a linear array, and the driving gear is engaged with the planetary transmission gear.

[0007] Further, the first polishing device comprises an inner sleeve, the inner sleeve is movably connected with the negative pressure pipe, the connection between the inner sleeve and the negative pressure pipe is connected in a way of sliding groove cooperation, a spring is clamped on the top of the inner sleeve, one end of the spring is connected with a helical blade, a first drill grinding ball is fixedly installed on the outer surface of the inner sleeve near the bottom, and a suction hole is formed on the outer surface of the inner sleeve above the first drill grinding ball.

[0008] Further, the first drill grinding ball is semispherical, and the inclination angle A is thirty degrees.

[0009] Further, the inner ring of the reverse ring is fixedly installed with an upper matching inner ring, the upper matching inner ring is engaged with an upper shaft sleeve, the top of the reverse ring is provided with a ring gear, the ring gear is engaged with a planetary gear, in the process of rotation of the transmission shaft, the ring gear is driven to rotate synchronously through the rotation effect of the planetary gear, and the rotation direction of the ring gear is opposite to that of the transmission shaft, upper connecting rods are sleeved on both sides of the upper matching inner ring at the bottom of the reverse ring, and one end of the upper connecting rod is movably sleeved with a rotating rod. The bottom of the rotating rod is movably sleeved with a lower connecting rod and a driving rod respectively, one end of the lower connecting rod is movably sleeved with a lower matching inner ring, the lower matching inner ring is movably sleeved with a lower shaft sleeve, and one end of the driving rod is movably sleeved with a second polishing device.

[0010] Further, the second polishing device comprises an outer sleeve, a second drill grinding ball is arranged on the outer surface of the outer sleeve near the bottom, the second drill grinding ball is semispherical, and the inclination angle B is thirty degrees.

[0011] Specifically, the outer sleeve is movably sleeved with the inner sleeve and cannot move axially.

[0012] Further, the inclined portions of the first drill grinding ball and the second drill grinding ball correspond to each other, and a gap is left between the first drill grinding ball and the second drill grinding ball, and the gap corresponds to the suction hole.

[0013] Further, the outer surface of the rotating rod is provided with a fan blade on both sides, in the process of rotation of the ring gear, the rotating rod is driven to rotate synchronously, and the fan blade drives the surrounding air to flow and generate negative pressure.

[0014] The application has the following beneficial effects.

[0015] The device adopts the cooperation of the first drill ball and the second drill ball, and in the running process, the two drill balls are coaxially reversed, the vibration generated by the rotation of the drill ball can be eliminated, in addition, the friction generated by the contact of the two drill balls with the bone can also be synchronized to offset, to avoid the problem of rolling of the drill ball, and when the medical staff increases the downward pressure applied to the device, the polishing efficiency is improved, the number of bone debris generated is increased, and the adsorption force generated by the device can be automatically improved, thereby realizing the effect of automatic adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of the specification, illustrate the embodiments of the present application and serve to explain the principles of the present application.

[0017] The present disclosure can be more clearly understood and appreciated from the following detailed description, taken in conjunction with the following drawings of which:

[0018] Figure 1 is a structural diagram of the present application;

[0019] Figure 2 is a structural section view of the present application;

[0020] Figure 3 is a structural shell view of the present application;

[0021] Figure 4 is a structural drive device view of the present application;

[0022] Figure 5 is a first polishing device section view of the present application;

[0023] Figure 6 is a reverse device view of the present application;

[0024] Figure 7 is a right view of the reverse device of the present application;

[0025] Figure 8 is a reverse device section view of the present application;

[0026] Figure 9 is a second polishing device section view of the present application.

[0027] In the figure: 1, the shell; 2, power machine; 3, transmission shaft; 4, planetary gear; 5, reverse ring; 6, suction pipe; 7, guide pipe; 8, negative pressure pipe; 9, spiral piece; 10, negative pressure hole; 11, lower shaft sleeve; 12, first polishing device; 121, inner sleeve; 122, spring; 123, first drill grinding ball; 124, suction hole; 13, driving gear; 14, upper shaft sleeve; 15, upper matching inner ring; 16, ring gear; 17, upper connecting rod; 18, rotating rod; 19, lower connecting rod; 20, drive rod; 21, lower matching inner ring; 22, second polishing device; 221, outer sleeve; 222, second drill grinding ball; 23, fan blade. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] A kind of bone surgery drill equipment that can be recycled bone debris, please see Figures 1-3 , including shell 1, the top of the shell 1 is fixedly installed with power machine 2, power machine 2 outputs torque and drives transmission shaft 3 to rotate when running, the one end of the output shaft of power machine 2 is fixedly installed with transmission shaft 3, and transmission shaft 3 is located in the inside of shell 1, the top of the inner wall of shell 1 is provided with planetary gear 4 at the position outside transmission shaft 3, the outer surface of transmission shaft 3 is provided with reverse ring 5 at the position close to top, the outer surface of shell 1 is provided with suction pipe 6 at the position close to top, one end of suction pipe 6 is provided with guide pipe 7, one end of guide pipe 7 is connected with negative pressure collection equipment.

[0030] Please see Figures 1-4 , the bottom of transmission shaft 3 is fixedly installed with negative pressure pipe 8, the outer surface of negative pressure pipe 8 is provided with spiral piece 9, the outer surface of negative pressure pipe 8 is provided with negative pressure hole 10 at the position between spiral piece 9, the bottom of lower shaft sleeve 11 is fixedly installed with first polishing device 12, the outer surface of transmission shaft 3 is provided with driving gear 13 at the position close to top, the outer surface of transmission shaft 3 is provided with upper shaft sleeve 14 at the position below driving gear 13.

[0031] Please see Figures 3-4 , the negative pressure hole 10 is distributed in the form of linear array, the driving gear 13 is engaged with the planetary gear 4.

[0032] When the negative pressure pipe 8 rotates, the helical fin 9 rotates synchronously, so that the airflow in the shell 1 moves upward along the axis of the negative pressure pipe 8, and the airflow in the shell 1 moves in a helical upward direction, so that the bone debris is moved toward the suction pipe 6, and the stability of the device during operation is improved. At the same time, since the bone debris can move toward the suction pipe 6, the position of the suction pipe 6 can be designed near the end of the shell 1, so that the medical staff can hold it more conveniently.

[0033] Please refer to Figures 4-5 The first polishing device 12 comprises an inner sleeve 121 movably mounted with the negative pressure pipe 8. The inner sleeve 121 is connected with the negative pressure pipe 8 in a sliding groove matching manner. The top of the inner sleeve 121 is clamped with a spring 122. One end of the spring 122 is connected with the helical fin 9. A first drill grinding ball 123 is fixedly installed on the outer surface of the inner sleeve 121 near the bottom. A suction hole 124 is formed on the outer surface of the inner sleeve 121 above the first drill grinding ball 123.

[0034] During the operation of the device, the rotating rod 18 rotates in the opposite direction of the negative pressure pipe 8, so as to further increase the relative speed of the negative pressure hole 10 and the airflow in the shell 1, thereby increasing the negative pressure strength acting on the suction hole 124, and improving the collection capacity of the device for bone debris and the practicability of the device.

[0035] Please refer to Figure 5 The first drill grinding ball 123 is semispherical, and the inclination angle A is thirty degrees.

[0036] Please refer to Figure 2 , Figure 4 and Figures 6-8 The inner ring of the reverse ring 5 is fixedly installed with an upper matching inner ring 15. The upper matching inner ring 15 is engaged with the upper shaft sleeve 14. The top of the reverse ring 5 is provided with a ring gear 16. The ring gear 16 is engaged with the planetary transmission gear 4. During the rotation of the transmission shaft 3, the planetary transmission gear 4 rotates, which drives the ring gear 16 to rotate synchronously. The rotation direction of the ring gear 16 is opposite to that of the transmission shaft 3. The bottom of the reverse ring 5 is sleeved with an upper connecting rod 17 on both sides of the upper matching inner ring 15. One end of the upper connecting rod 17 is movably sleeved with a rotating rod 18. The bottom of the rotating rod 18 is movably sleeved with a lower connecting rod 19 and a driving rod 20. One end of the lower connecting rod 19 is movably sleeved with a lower matching inner ring 21. The lower matching inner ring 21 is movably sleeved with the lower shaft sleeve 11. One end of the driving rod 20 is movably sleeved with a second polishing device 22.

[0037] Please refer to Figure 9 The second polishing device 22 comprises an outer sleeve 221, and a second drill grinding ball 222 is arranged on the outer surface of the outer sleeve 221 near the bottom, wherein the second drill grinding ball 222 is in a semispherical shape, and the inclination angle B is thirty degrees.

[0038] Please refer to Figure 5 and Figure 9 The outer sleeve 221 is movably sleeved with the inner sleeve 121 and cannot move axially.

[0039] Please refer to Figure 5 and Figure 9 The inclination of the first drill grinding ball 123 corresponds to the inclination of the second drill grinding ball 222, and a gap is left between the first drill grinding ball 123 and the second drill grinding ball 222, and the gap corresponds to the suction hole 124.

[0040] When the power machine 2 moves, the transmission shaft 3 and the ring gear 16 rotate synchronously and in opposite directions, and under the transmission of the inner sleeve 121 and the rotating rod 18, the first drill grinding ball 123 and the second drill grinding ball 222 rotate synchronously and in opposite directions, so that the vibration of the torque difference and the deflection force can be offset, and when the first drill grinding ball 123 and the second drill grinding ball 222 contact the patient's bone, the friction forces generated by the first drill grinding ball 123 and the second drill grinding ball 222 contacting the bone are parallel and opposite in direction, and can also be offset, which can effectively reduce the friction force when the medical staff operates, thereby reducing the difficulty of using the device and improving the practicability of the device.

[0041] Please refer to Figures 6-8 The outer surface of the rotating rod 18 is provided with a fan blade 23 on both sides, and when the ring gear 16 rotates, the rotating rod 18 rotates synchronously, and the fan blade 23 drives the surrounding air to flow and generate negative pressure.

[0042] When the ring gear 16 drives the rotating rod 18 to rotate, the fan blade 23 arranged on the outer surface of the rotating rod 18 drives the gas inside the shell 1 to flow and generate negative pressure, and the negative pressure acts on the suction hole 124 through the negative pressure hole 10 and the negative pressure pipe 8. At this time, a gap is left between the first drill grinding ball 123 and the second drill grinding ball 222, and the gap corresponds to the suction hole 124, so that when the device polishes the patient's bone, the negative pressure generated by the device can suck the bone chips into the inside of the negative pressure pipe 8, and through the negative pressure hole 10, the bone chips enter the inside of the shell 1, and under the action of the negative pressure collection device, the bone chips finally enter the negative pressure collection device through the suction pipe 6 and the guide pipe 7, thereby realizing the collection of the bone chips, avoiding the problem of taking bone chips from other parts of the patient, and improving the practicability of the device.

[0043] Since the first drill ball 123 and the second drill ball 222 are both semispherical and have an inclination angle of thirty degrees, when the first drill ball 123 and the second drill ball 222 need to be in contact with the bone at the same time, the device needs to be kept in an inclined state, which is more in line with the needs of human hand holding, avoiding the problem that medical staff feel hand fatigue after long time use of the device, and improving the stability of the device in use.

[0044] When the medical staff need to speed up the polishing speed of the bone, the force applied by the hand to the device will be increased, at this time, since the polishing speed of the device on the bone is increased, the amount of bone debris generated is also increased, under the action, the first drill ball 123 and the second drill ball 222 retract and drive the rotating rod 18 to expand outward through the driving rod 20, when the rotating speed of the rotating rod 18 is fixed and the position is close to the outside, the linear speed of the rotating rod 18 increases, so that the airflow flowing speed in the shell 1 is increased, the negative pressure intensity of the suction hole 124 is increased, so that the collection effect of the device on the bone debris can be adjusted synchronously with the generation speed of the bone debris, and the practicability of the device is improved.

[0045] The spring 122 is compressed and stores elastic potential energy in the initial state, when the rotating rod 18 rotates, the centrifugal force generated by the rotating rod 18 will have a tendency to move upward to the second polishing device 22 through the driving rod 20, and the elastic force of the spring 122 is balanced, avoiding the problem that the first drill ball 123 and the second drill ball 222 retract when the rotating rod 18 rotates, causing the normal automatic adjustment of the negative pressure size to be unable to be realized, and improving the reliability of the device.

[0046] The use method of the present application is as follows:

[0047] In use, when the power machine 2 moves, the transmission shaft 3 and the ring gear 16 rotate synchronously and in opposite directions, and under the transmission of the inner sleeve 121 and the rotating rod 18, the first drill grinding ball 123 and the second drill grinding ball 222 rotate synchronously and in opposite directions, so that the torsional vibration and the deflection force can offset each other, and when the first drill grinding ball 123 and the second drill grinding ball 222 contact the patient's bone, the friction generated by the first drill grinding ball 123 and the second drill grinding ball 222 contacting the bone is parallel and opposite, which can also offset each other, so that the medical staff can effectively reduce the friction force when operating, when the ring gear 16 drives the rotating rod 18 to rotate, the fan blades 23 arranged on the outer surface of the rotating rod 18 drive the gas inside the shell 1 to flow and generate negative pressure, the negative pressure acts on the suction hole 124 through the negative pressure hole 10 and the negative pressure pipe 8, at this time, a gap is left between the first drill grinding ball 123 and the second drill grinding ball 222, which corresponds to the suction hole 124, so that when the device grinds the patient's bone, the negative pressure generated by the device can suck the bone chips into the inside of the negative pressure pipe 8, and then into the inside of the shell 1 through the negative pressure hole 10, and finally into the negative pressure collecting device through the suction pipe 6 and the guide pipe 7, so as to realize the collection of the bone chips. Since the rotating direction of the rotating rod 18 and the negative pressure pipe 8 is opposite during the operation of the device, the relative speed of the negative pressure hole 10 and the airflow inside the shell 1 is further improved, thereby improving the negative pressure intensity of the suction hole 124 and the collection capacity of the device. Since the helical blades 9 are arranged on the outer surface of the negative pressure pipe 8, the helical blades 9 rotate synchronously when the negative pressure pipe 8 rotates, thereby driving the airflow inside the shell 1 to move upward along the axis of the negative pressure pipe 8, so that the airflow inside the shell 1 moves in a helical upward direction, which can drive the bone chips to move towards the suction pipe 6, ensuring that the bone chips can be basically absorbed by the negative pressure collecting device through the suction pipe 6 and the guide pipe 7, thereby improving the stability of the device during operation. At the same time, since the bone chips can move towards the suction pipe 6, the position of the suction pipe 6 can be designed near the end of the shell 1, so that the medical staff can hold it more conveniently. Since the first drill grinding ball 123 and the second drill grinding ball 222 are both hemispherical and have an inclination angle of thirty degrees, when the first drill grinding ball 123 and the second drill grinding ball 222 need to contact the bone at the same time, the device needs to be in an inclined state, which is more in line with the requirements of human hand holding. When the medical staff needs to speed up the grinding speed of the bone, the force applied by the hand to the device will increase, and at this time, since the grinding speed of the device on the bone increases, the amount of bone chips also increases, under the action of the first drill grinding ball 123 and the second drill grinding ball 222, the rotating rod 18 is driven by the drive rod 20 to expand outward, when the rotating speed of the rotating rod 18 is fixed and the position is closer to the outside,The linear velocity of the rotating rod 18 is increased, so that the airflow flowing speed inside the shell 1 is increased, the negative pressure intensity acting on the suction hole 124 is increased, so that the collection effect of the device on the bone debris can be adjusted synchronously with the generation speed of the bone debris.

Claims

1. A surgical drill for orthopedic procedures capable of recovering bone fragments, characterized in that, The device includes a housing (1), a power unit (2) fixedly mounted on the top of the housing (1), a transmission shaft (3) fixedly mounted on one end of the output shaft of the power unit (2), and the transmission shaft (3) located inside the housing (1). A planetary transmission gear (4) is provided on the top of the inner wall of the housing (1) at a position outside the transmission shaft (3). A reverse rotation ring (5) is fitted on the outer surface of the transmission shaft (3) near the top. A suction pipe (6) is provided on the outer surface of the housing (1) near the top. A guide pipe (7) is fitted on one end of the suction pipe (6), and one end of the guide pipe (7) is connected to a negative pressure collection device. A negative pressure pipe (8) is fixedly mounted on the bottom of the transmission shaft (3). The outer surface of the negative pressure pipe (8) is provided with spiral blades (9), and a negative pressure hole (10) is provided on the outer surface of the negative pressure pipe (8) between the spiral blades (9). A lower bushing (11) is fixedly sleeved on the outer surface of the negative pressure pipe (8) near the bottom. A first grinding device (12) is movably installed on the bottom of the lower bushing (11). A drive gear (13) is provided on the outer surface of the transmission shaft (3) near the top. An upper bushing (14) is provided on the outer surface of the transmission shaft (3) below the drive gear (13). The drive gear (13) meshes with a planetary transmission gear (4). The first grinding device (12) includes an inner sleeve (121). 1) The inner sleeve (121) is movably installed with the negative pressure pipe (8). The connection between the inner sleeve (121) and the negative pressure pipe (8) is made by a sliding groove. A spring (122) is snapped onto the top of the inner sleeve (121). One end of the spring (122) is connected to the spiral blade (9). A first grinding ball (123) is fixedly installed on the outer surface of the inner sleeve (121) near the bottom. A suction hole (124) is opened on the outer surface of the inner sleeve (121) above the first grinding ball (123). The first grinding ball (123) is hemispherical and has an inclination angle A of 30 degrees. An upper mating inner ring (15) is fixedly installed on the inner ring of the reverse ring (5). The upper shaft sleeve (14) meshes with the upper shaft sleeve (14). The top of the reverse ring (5) is provided with a ring gear (16), which meshes with the planetary transmission gear (4). The bottom of the reverse ring (5) is provided with upper connecting rods (17) on both sides of the upper inner ring (15). One end of the upper connecting rod (17) is movably provided with a rotating rod (18). The bottom of the rotating rod (18) is movably provided with a lower connecting rod (19) and a drive rod (20). One end of the lower connecting rod (19) is movably provided with a lower inner ring (21), which is movably provided with the lower shaft sleeve (11). One end of the drive rod (20) is movably provided with a second grinding device (22).The second polishing device (22) includes an outer sleeve (221), and a second grinding ball (222) is provided on the outer surface of the outer sleeve (221) near the bottom. The second grinding ball (222) is hemispherical and has an inclination angle B of 30 degrees. The outer sleeve (221) is movably fitted with the inner sleeve (121) and cannot move axially; the inclined part of the first grinding ball (123) corresponds to the inclined part of the second grinding ball (222), and there is a gap between the first grinding ball (123) and the second grinding ball (222), which corresponds to the suction hole (124).

2. The orthopedic surgical drill equipment capable of recovering bone fragments according to claim 1, characterized in that, The negative pressure holes (10) are distributed in a linear array.

3. The orthopedic surgical drill equipment capable of recovering bone fragments according to claim 1, characterized in that, Fan blades (23) are provided on both sides of the outer surface of the rotating rod (18).

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