Handheld orthopedic sander capable of absorbing bone paste

Abstract

The invention belongs to the technical field of medical instruments, and provides a handheld orthopedic sander capable of absorbing bone paste, comprising a body, the bottom of the body is fixedly connected with a sleeving column, and the side, away from the body, of the sleeving column is in transmission connection with a grinding head; the water jacket is detachably connected to the sleeving column in a sleeving mode, the water jacket communicates with normal saline supply equipment, and a plurality of water outlet holes used for spraying normal saline to the grinding head are formed in the end, close to the grinding head, of the water jacket; the bone paste adsorption assembly comprises a liquid suction annular pipe, the liquid suction annular pipe is arranged close to the grinding head, a plurality of negative pressure openings used for absorbing bone paste are formed in the liquid suction annular pipe, the liquid suction annular pipe communicates with liquid pumping equipment, and the liquid suction annular pipe is detachably connected to the machine body through a limiting connecting assembly. The limiting connecting assembly is used for enabling the liquid suction annular pipe to be attached to the bone tissue of the ground area. During grinding, normal saline is continuously sprayed to a grinding area for cooling, and meanwhile generated bone paste can be automatically and timely absorbed and removed.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a handheld orthopedic grinder capable of absorbing bone mud. Background Art

[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system, as well as treat injuries and diseases of this system. With the changes of the times and society, the spectrum of orthopedic injuries has changed significantly. With the development and progress of science and technology, orthopedics has made great progress in diagnosis and treatment. The removal of bone and joint tuberculosis lesions has been promoted throughout the country, greatly improving the cure rate of surgery.

[0003] For example, for some injured people who accidentally have steel bars pierced into their bones, the existing technology is to first grind and clean the injured bone part, and a grinder will be used in this process. During existing orthopedic surgical operations, if a grinder is needed, physiological saline needs to be used to cool the grinding area and prevent bone chips from flying. However, the existing physiological saline dripping method requires an assistant to help sprinkle the physiological saline on the grinding area, which can easily cause operator fatigue after long-term work, and the cooling and dust reduction effects will also be reduced. Moreover, after spraying physiological saline, physiological saline and bone chips will form bone mud, which will flow along the human bone tissue and body surface. Personnel assistance is required to wipe off the bone mud in time, which is difficult to operate, occupies personnel allocation, and is not conducive to the operation. Summary of the invention

[0004] The purpose of the present invention is to provide a handheld orthopedic grinder capable of absorbing bone mud to solve the above-mentioned problem, so as to facilitate continuous spraying of physiological saline to the grinding area for cooling during grinding and automatically and timely absorb and remove the generated bone mud.

[0005] To achieve the above object, the present invention provides the following solution: a handheld orthopedic grinder capable of absorbing bone mud, comprising:

[0006] A machine body, wherein a sleeve column is fixedly connected to the bottom of the machine body, and a grinding head is drivingly connected to a side of the sleeve column away from the machine body;

[0007] A water jacket, the water jacket is detachably sleeved on the sleeve column, the water jacket is connected to a physiological saline supply device, and one end of the water jacket close to the grinding head is provided with a plurality of water outlet holes for spraying physiological saline to the grinding head;

[0008] The bone mud adsorption component includes a liquid suction ring tube, which is arranged close to the grinding head. The liquid suction ring tube is provided with a plurality of negative pressure ports for absorbing bone mud. The liquid suction ring tube is connected to a liquid extraction device. The liquid suction ring tube is detachably connected to the body through a limiting connection component. The limiting connection component is used to make the liquid suction ring tube fit the bone tissue of the grinding area.

[0009] Preferably, the liquid-absorbing annular tube is made of a material that does not irritate human tissue.

[0010] Preferably, a water cavity is annularly provided in the water jacket, one end of the water cavity is connected to the water outlet, the other end of the water cavity is connected to a water inlet interface, and the water inlet interface is connected to the physiological saline supply device.

[0011] Preferably, a side of the inner wall of the water jacket close to the machine body and a side of the outer wall of the sleeve column close to the machine body are respectively provided with threaded sections, and the water jacket and the sleeve column are connected via the threaded sections.

[0012] Preferably, the position-limiting connection assembly comprises a connection ring, which is detachably sleeved on the water jacket, and a side of the connection ring close to the grinding head is provided with two sets of slideways, the two slideways are symmetrically arranged about the axis of the connection ring, and connecting rods are slidably connected in the two slideways, a spring is abutted between one end of the connecting rod and the bottom of the slideway, and the other end of the connecting rod is connected to the liquid suction annular tube through a ball joint structure;

[0013] Fixed connecting parts are arranged between the water jacket, the connecting ring and the machine body.

[0014] Preferably, the fixed connecting member includes two groups of connecting seats fixedly connected to the side wall of the body, the two connecting seats are symmetrically arranged about the axis of the body, a first connecting hole is opened on the connecting seat, two groups of second connecting holes are opened on the side wall of the connecting ring, and two groups of threaded holes are opened on the outer wall of the water jacket, and the first connecting hole, the second connecting hole and the threaded hole are detachably connected by bolts.

[0015] Preferably, the ball joint structure comprises a socket, the socket is fixedly connected to the top of the liquid suction ring tube, and the socket is hinged to an end of the connecting rod away from the connecting ring through a hinge ball.

[0016] Preferably, two groups of limit strips are fixedly connected to the outer wall of the water jacket along the axis of the water jacket, and two groups of slide grooves are opened on the inner wall of the connecting ring along the axis of the connecting ring. The two ends of the slide grooves are open, and the two limit strips are adapted to the two slide grooves.

[0017] Preferably, a solenoid valve control box is fixedly connected to the side wall of the body, and a water circuit control solenoid valve is arranged in the solenoid valve control box. The two ends of the water circuit control solenoid valve are respectively connected to one end of a water circuit outlet pipe and one end of a water circuit access pipe, the other end of the water circuit outlet pipe is connected to the water inlet interface, and the other end of the water circuit access pipe is connected to the physiological saline supply equipment.

[0018] Preferably, an air circuit control solenoid valve is also provided in the solenoid valve control box, and the two ends of the air circuit control solenoid valve are respectively connected to one end of an air pressure inlet pipe and one end of an air pressure outlet pipe, the other end of the air pressure inlet pipe is connected to the interior of the liquid suction ring tube through a negative pressure pipe, and the other end of the air pressure outlet pipe is connected to the liquid extraction equipment.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects: the main function of the water outlet is to automatically and evenly spray the saline in the saline supply device along the circumference of the grinding head to the contact position between the grinding head and the bone tissue, so as to cool the grinding area; the main function of the water jacket is to provide a hand-holding position for the doctor and connect the water outlet and the saline supply device, and at the same time utilize the flow of saline to cool the water jacket, so as to avoid the doctor from sweating after holding the hand for a long time; the main function of the liquid suction ring tube is to fit with the bone tissue, absorb the bone mud generated during the grinding process through the negative pressure port, and finally extract the bone mud from the body surface through the liquid extraction device; the main function of the limit connection assembly is to realize the automatic fitting of the liquid suction ring tube to the bone tissue during the grinding process. On the whole, the present invention provides a water jacket and a water outlet, so that physiological saline can be automatically sprayed onto the junction of the grinding head and bone tissue during the grinding process without adding additional personnel, thereby achieving the effects of cooling and dust removal. The water jacket can maintain a relatively low temperature due to the cooling effect of the flowing physiological saline, which can prevent the doctor from sweating after holding the device for a long time. At the same time, by providing a limit connection component and a liquid suction ring tube, the liquid suction ring tube can always be in contact with the bone tissue during the grinding process, and the generated bone mud can be removed from the surface of the bone tissue through the liquid suction ring tube in time, thereby reducing the use of personnel and improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a schematic diagram of an orthopedic grinder of the present invention;

[0022] Figure 2 It is a schematic diagram of the machine body of the present invention;

[0023] Figure 3 It is a schematic diagram of the water jacket of the present invention;

[0024] Figure 4 is a schematic diagram of a position limiting connection assembly of the present invention;

[0025] Figure 5 It is a partial cross-sectional view of the orthopedic grinder of the present invention;

[0026] Figure 6 for Figure 5 A partial enlarged view in FIG.

[0027] Figure 7 This is a schematic diagram of the ball joint structure of the present invention;

[0028] Among them, 1. body; 2. solenoid valve control box; 3. air pressure access pipe; 4. water channel access pipe; 5. connecting seat; 6. connecting ring; 7. water jacket; 8. limit strip; 9. water inlet interface; 10. connecting rod; 11. pipe clamp; 12. negative pressure pipe; 13. water outlet hole; 14. grinding head; 15. suction ring tube; 16. sleeve column; 17. air pressure access pipe; 18. water channel access pipe; 19. opening; 20. slide; 21. first connecting hole; 22. threaded hole; 23. ball joint structure; 231. hinged ball; 232. seat; 24. negative pressure port; 25. bolt; 26. water cavity; 27. spring; 28. slide; 29. ​​second connecting hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figure 1-Figure 7 The present invention provides a handheld orthopedic grinder capable of absorbing bone mud, comprising:

[0032] The machine body 1 has a sleeve column 16 fixedly connected to the bottom of the machine body 1, and a grinding head 14 is drivingly connected to the side of the sleeve column 16 away from the machine body 1;

[0033] A water jacket 7, which is detachably sleeved on the sleeve column 16, and the water jacket 7 is connected to a physiological saline supply device. One end of the water jacket 7 close to the grinding head 14 is provided with a plurality of water outlet holes 13 for spraying physiological saline to the grinding head 14;

[0034] The bone mud adsorption component includes a liquid suction ring tube 15, which is arranged close to the grinding head 14. The liquid suction ring tube 15 is provided with a plurality of negative pressure ports 24 for absorbing bone mud. The liquid suction ring tube 15 is connected to a liquid extraction device. The liquid suction ring tube 15 is detachably connected to the body 1 through a limiting connection component. The limiting connection component is used to make the liquid suction ring tube 15 fit the bone tissue of the grinding area.

[0035] The main function of the sleeve column 16 is to provide the necessary support structure for the connection between the water jacket 7, the limit connection assembly and the body 1; the main function of the body 1 is to accommodate the motor assembly for driving the grinding head 14 to rotate; the main function of the water outlet 13 is to automatically and evenly spray the saline in the saline supply device along the circumference of the grinding head 14 to the contact position between the grinding head 14 and the bone tissue to cool the grinding area; the main function of the water jacket 7 is to provide a hand-holding area for the doctor and connect the water outlet 13 and the saline supply device, and at the same time use the flow of saline to cool the water jacket 7 to avoid the doctor from sweating after holding it for a long time; the main function of the suction ring tube 15 is to fit with the bone tissue, absorb the bone mud generated during the grinding process through the negative pressure port 24, and finally extract the bone mud from the body surface through the liquid extraction device; the main function of the limit connection assembly is to connect the suction ring tube 15 and the body 1, and ensure that the suction ring tube 15 automatically fits with the bone tissue during the grinding process. On the whole, the present invention provides a water jacket and a water outlet, so that physiological saline can be automatically sprayed onto the junction of the grinding head and bone tissue during the grinding process without adding additional personnel, thereby achieving the effects of cooling and dust removal. The water jacket can maintain a relatively low temperature due to the cooling effect of the flowing physiological saline, which can prevent the doctor from sweating after holding the device for a long time. At the same time, by providing a limit connection component and a liquid suction ring tube, the liquid suction ring tube can always be in contact with the bone tissue during the grinding process, and the generated bone mud can be removed from the surface of the bone tissue through the liquid suction ring tube in time, thereby reducing the use of personnel and improving surgical efficiency.

[0036] To further optimize the solution, the main function of the motor assembly is to drive the grinding head 14 to rotate. The motor assembly is a conventional structure, and its working principle and working process will not be described in detail.

[0037] To further optimize the solution, the liquid suction ring tube 15 is made of a material that does not irritate human tissue.

[0038] In this embodiment, the liquid suction annular tube 15 can be made of soft silicone material. The soft liquid suction annular tube 15 is easy to deform after being subjected to pressure, and is easier to fit with the surface of the bone tissue structure.

[0039] According to a further optimization scheme, a water cavity 26 is provided in an annular direction in the water jacket 7, one end of the water cavity 26 is connected to the water outlet 13, and the other end of the water cavity 26 is connected to a water inlet interface 9, which is connected to a physiological saline supply device.

[0040] like Figure 1 and Figure 3 As shown, an opening 19 is provided on the surface of the water jacket 7 , and the water inlet interface 9 is arranged in the opening 19 , and it is ensured that the top of the water inlet interface 9 does not exceed the outer surface of the water jacket 7 .

[0041] According to a further optimization scheme, the inner wall of the water jacket 7 close to the machine body 1 and the outer wall of the sleeve column 16 close to the machine body 1 are respectively provided with threaded sections (not shown in the figure), and the water jacket 7 and the sleeve column 16 are connected by the threaded sections.

[0042] The threaded section on the water jacket 7 is opened inwardly, and the threaded section on the sleeve column 16 is opened outwardly, which can ensure that the inner diameter of the water jacket 7 is adapted to the outer diameter of the sleeve column 16, and a reasonable gap is maintained between the two when the water jacket 7 is sleeved on the sleeve column 16. By setting the threaded section, after the water jacket 7 is sleeved on the sleeve column 16 and the threaded section of the water jacket 7 is in contact with the threaded section of the sleeve column 16, the water jacket 7 can be rotated to fix the water jacket 7 with the body 1, so that when the doctor holds the water jacket 7, he can accurately and flexibly operate the grinding head 14 on the body 1 to work.

[0043] Further optimized solution, the limit connection assembly includes a connecting ring 6, the connecting ring 6 is detachably sleeved on the water jacket 7, and two sets of slideways 28 are opened on the side of the connecting ring 6 close to the grinding head 14, and the two slideways 28 are symmetrically arranged about the axis of the connecting ring 6. The two slideways 28 are respectively slidably connected with connecting rods 10, and a spring 27 is abutted between one end of the connecting rod 10 and the bottom of the slideway 28, and the other end of the connecting rod 10 is connected to the liquid suction annular tube 15 through a ball joint structure 23;

[0044] Fixed connecting parts are arranged between the water jacket 7 , the connecting ring 6 and the machine body 1 .

[0045] like Figure 1 and Figure 4 As shown, after the doctor fits the suction ring tube 15 to the surface of the bone tissue, he continues to press down the water jacket 7, so that the grinding head 14 can contact the part that needs to be polished. At the same time, the connecting rod 10 slides toward the inner side of the slideway 28 relative to the slideway 28 and compresses the spring 27. The elastic force applied by the spring 27 to the connecting rod 10 can ensure that the suction ring tube 15 is always in contact with the surface of the bone tissue during the grinding period.

[0046] To further optimize the solution, a soft spring with relatively small elasticity is selected for the spring 27, and it is only necessary to ensure that the suction ring tube 15 fits the surface of the bone tissue to avoid the elastic force of the spring 27 from generating a large resistance to the doctor's operation and affecting the accurate progress of the grinding process.

[0047] In a further optimized solution, the water inlet interface 9 is arranged on the side of the connecting ring 6 away from the body 1, and the connecting ring 6 is exposed, so that the water inlet interface 9 is connected to the physiological saline supply device. At the same time, since the top of the water inlet interface 9 does not exceed the outer surface of the water jacket 7, it does not affect the installation of the connecting ring 6 on the surface of the water jacket 7.

[0048] A further optimized solution is provided, in which the fixed connecting parts include two groups of connecting seats 5 fixedly connected to the side wall of the body 1, the two connecting seats 5 are symmetrically arranged about the axis of the body 1, a first connecting hole 21 is provided on the connecting seat 5, two groups of second connecting holes 29 are provided on the side wall of the connecting ring 6, and two groups of threaded holes 22 are provided on the outer wall of the water jacket 7. A first connecting hole 21, a second connecting hole 29 and a threaded hole 22 are detachably connected by bolts 25.

[0049] like Figure 1 , Figure 6 and Figure 7 As shown, the positions of the threaded sections on the water jacket 7 and the sleeve column 16 and the second connecting hole 29 and the threaded hole 22 are designed to ensure that when the water jacket 7 is tightened on the sleeve column 16, the threaded hole 22 is aligned with the second connecting hole 29.

[0050] When in use, the water jacket 7 is connected to the sleeve column 16 through the threaded section, and the position of the water jacket 7 must ensure that the threaded hole 22 is aligned with the second connection hole 29. Afterwards, the connecting ring 6 is put on, and the first connection hole 21 is aligned with the second connection hole 29 and the threaded hole 22. Afterwards, the bolt 25 is used to penetrate the second connection hole 29 and the first connection hole 21 and tightened in the threaded hole 22. At this time, the water jacket 7 is restricted by the bolt 25 and will not rotate relative to the body 1, that is, the water jacket 7 is firmly fixed on the body 1. At the same time, the connecting ring 6 is fixed at the designed position on the water jacket 7, and the doctor can start using it by holding the water jacket 7.

[0051] When the machine body 1, water jacket 7 and other structures need to be maintained, the connecting ring 6 and water jacket 7 can be removed from the machine body 1 by unscrewing the bolts 25. The modular structure facilitates the maintenance and care of the entire grinder of the present invention.

[0052] According to a further optimized solution, the ball joint structure 23 includes a holder 232 , which is fixedly connected to the top of the liquid suction ring tube 15 , and the holder 232 is hinged to an end of the connecting rod 10 away from the connecting ring 6 through a hinge ball 231 .

[0053] like Figure 1 , Figure 4 and Figure 7As shown, during the grinding process, since the two connecting rods 10 can be extended and retracted independently, and at the same time, the two connecting rods 10 and the holder 232 on the suction ring tube 15 can be independently angularly deflected, it is achieved that during the grinding process, no matter how the doctor adjusts the angle of the body 1, the suction ring tube 15 can ensure that the suction ring tube 15 is always in contact with the surface of the bone tissue through the independent sliding between the two connecting rods 10 and the angular deflection of the two ball joint structures 23, thereby ensuring the effectiveness of bone mud absorption.

[0054] According to a further optimization scheme, two sets of limit strips 8 are fixedly connected to the outer wall of the water jacket 7 along the axis of the water jacket 7, and two sets of slide grooves 20 are opened on the inner wall of the connecting ring 6 along the axis of the connecting ring 6. The two ends of the slide groove 20 are opened, and the two limit strips 8 are adapted to the two slide grooves 20.

[0055] like Figure 3 and Figure 4 As shown, a limit bar 8 is provided on the side of the water jacket 7 close to the body 1. The two limit bars 8 and the two slide grooves 20 are symmetrically provided about the axis of the water jacket 7 and the axis of the connecting ring 6, respectively. By providing the limit bars 8 and the slide grooves 20, it can be ensured that when the connecting ring 6 is sleeved on the water jacket 7 along the limit bars 8, the first connecting hole 21 can be aligned with the threaded hole 22, reducing the difficulty of alignment between the threaded hole 22 and the first connecting hole 21. At the same time, the doctor can also drive the water jacket 7 to rotate by rotating the connecting ring 6.

[0056] To further optimize the solution, a solenoid valve control box 2 is fixedly connected to the side wall of the body 1, and a water circuit control solenoid valve is arranged in the solenoid valve control box 2. The two ends of the water circuit control solenoid valve are respectively connected to one end of a water circuit outlet pipe 4 and one end of a water circuit access pipe 18, the other end of the water circuit outlet pipe 4 is connected to the water inlet interface 9, and the other end of the water circuit access pipe 18 is connected to the physiological saline supply equipment.

[0057] To further optimize the solution, an air circuit control solenoid valve is also provided in the solenoid valve control box 2, and the two ends of the air circuit control solenoid valve are respectively connected to one end of the air pressure access pipe 3 and one end of the air pressure outlet pipe 17, and the other end of the air pressure access pipe 3 is connected to the interior of the suction ring tube 15 through the negative pressure pipe 12, and the other end of the air pressure outlet pipe 17 is connected to the liquid extraction equipment.

[0058] like Figure 1As shown, a water circuit control solenoid valve (not shown in the figure) and an air circuit control solenoid valve (not shown in the figure) are arranged in the solenoid valve control box 2. At the same time, two groups of opening control buttons are also arranged on the solenoid valve control box 2. The openings of the water circuit control solenoid valve and the air circuit control solenoid valve can be controlled respectively by the two opening control buttons. The doctor can adjust the opening of the water circuit control solenoid valve by the corresponding opening control button to adjust the amount of water sprayed to the grinding head 14. At the same time, the doctor can also adjust the opening of the corresponding air circuit control solenoid valve according to the amount of bone mud produced, and adjust the rate of bone mud absorption at the suction ring tube 15 to ensure the full extraction of bone mud, and avoid excessive negative pressure at the negative pressure port 24.

[0059] Further optimization scheme, such as Figure 1 As shown, a tube clamp 11 is fixedly connected to a connecting rod 10. The main function of the tube clamp 11 is to clamp the negative pressure tube 12 and limit the negative pressure tube 12 to prevent the negative pressure tube 12 near the grinding head 14 from shaking excessively during the operation and causing interference to the operation.

[0060] The negative pressure tube 12 is a soft tube to avoid affecting the deflection of the suction ring tube 15 relative to the connecting rod 10.

[0061] As a further optimization scheme, the physiological saline supply device can be a liquid pump, the liquid inlet end of the liquid pump is connected to a physiological saline storage device, such as a liquid storage bottle or a liquid storage bag containing physiological saline, and the liquid outlet end is connected to the water access pipe 18. The physiological saline is pumped into the water cavity 26 by the liquid pump.

[0062] To further optimize the solution, a negative pressure pump can be used as the liquid extraction equipment. The air inlet end of the negative pressure pump is connected to the air pressure outlet pipe 17, which is used to ultimately create a negative pressure environment in the liquid suction ring tube 15. The air outlet end of the negative pressure pump can be connected to a temporary storage box, whose main function is to store the sucked bone mud.

[0063] The working process of this embodiment is as follows: in the normal state, the water jacket 7 and the connecting ring 6 are fixed to the machine body 1 by bolts 25. At this time, the air pressure access pipe 3 is connected to the negative pressure pipe 12, and the water channel access pipe 4 is connected to the water inlet interface 9. When it is needed, the doctor only needs to connect the air pressure access pipe 17 to the liquid extraction device and the water channel access pipe 18 to the physiological saline supply device. After that, by controlling the opening of the corresponding solenoid valve in the solenoid valve control box 2, the flow of physiological saline flowing into the water cavity 26 can be controlled, and then the amount of water sprayed from the plurality of water outlet holes 13 can be controlled to meet the cooling demand of the grinding head 14 during the grinding process. At the same time, by adjusting the opening of the corresponding solenoid valve, the negative pressure value at the negative pressure port 24 is controlled to ensure that the bone mud generated during the grinding process can be completely sucked into the liquid suction ring tube 15, and enter the temporary storage box through the negative pressure pipe 12, the air pressure access pipe 3, and the air pressure access pipe 17 under the continuous negative pressure suction of the liquid extraction device.

[0064] When routine maintenance is required, the two bolts 25 need only be unscrewed to remove the connecting ring 6 from the water jacket 7, and the water jacket 7 can be reversely screwed to pull the water jacket 7 out of the sleeve column 16. By dividing the grinder into three modules for separate maintenance, the convenience of maintenance can be effectively improved.

[0065] Embodiment 2:

[0066] The difference between this embodiment and the first embodiment is that the liquid suction annular tube 15 can be provided with Figure 4 The circular ring shape shown is convenient for fitting on the surface of bone tissue with planar features. The liquid-absorbing ring tube 15 can also be provided with an arc-shaped ring structure to facilitate fitting on the surface of bone tissue with arc-shaped features such as joints.

[0067] When in use, the two types of liquid suction annular tubes 15 can be replaced by removing the bolts 25 according to the part that needs to be polished by the patient, which is more flexible to use.

[0068] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A handheld orthopedic grinder capable of absorbing bone mud, characterized in that: include: A machine body (1), wherein a sleeve column (16) is fixedly connected to the bottom of the machine body (1), and a grinding head (14) is drivingly connected to a side of the sleeve column (16) away from the machine body (1); a water jacket (7), the water jacket (7) being detachably sleeved on the sleeve column (16), the water jacket (7) being connected to a physiological saline supply device, and a plurality of water outlet holes (13) for spraying physiological saline toward the grinding head (14) being provided at one end of the water jacket (7) close to the grinding head (14); The bone mud adsorption component comprises a liquid suction annular tube (15), wherein the liquid suction annular tube (15) is arranged close to the grinding head (14), the liquid suction annular tube (15) is provided with a plurality of negative pressure ports (24) for absorbing bone mud, the liquid suction annular tube (15) is connected to a liquid extraction device, the liquid suction annular tube (15) is detachably connected to the body (1) via a limiting connection component, and the limiting connection component is used to make the liquid suction annular tube (15) fit the bone tissue of the grinding area.

2. A handheld bone-absorbable orthopedic grinder according to claim 1, characterized in that: The liquid suction annular tube (15) is made of a material that does not irritate human tissue.

3. The handheld bone-absorbable orthopedic grinder according to claim 1, characterized in that: A water cavity (26) is provided in an annular direction inside the water jacket (7), one end of the water cavity (26) is connected to the water outlet hole (13), the other end of the water cavity (26) is connected to a water inlet interface (9), and the water inlet interface (9) is connected to the physiological saline supply device.

4. The handheld bone-absorbable orthopedic grinder according to claim 1, characterized in that: The inner wall of the water jacket (7) on the side close to the machine body (1) and the outer wall of the sleeve column (16) on the side close to the machine body (1) are respectively provided with threaded sections, and the water jacket (7) and the sleeve column (16) are connected via the threaded sections.

5. The handheld bone-absorbable orthopedic grinder according to claim 1, characterized in that: The limit connection assembly comprises a connection ring (6), the connection ring (6) is detachably sleeved on the water jacket (7), two sets of slideways (28) are provided on a side of the connection ring (6) close to the grinding head (14), the two slideways (28) are symmetrically arranged about the axis of the connection ring (6), a connection rod (10) is slidably connected in the two slideways (28), a spring (27) is abutted between one end of the connection rod (10) and the bottom of the slideway (28), and the other end of the connection rod (10) is connected to the liquid suction annular tube (15) via a ball joint structure (23); Fixed connecting parts are provided between the water jacket (7), the connecting ring (6) and the machine body (1).

6. The handheld bone-absorbable orthopedic grinder according to claim 5, characterized in that: The fixed connection member comprises two groups of connection seats (5) fixedly connected to the side wall of the body (1), the two connection seats (5) are symmetrically arranged about the axis of the body (1), a first connection hole (21) is opened on the connection seat (5), two groups of second connection holes (29) are opened on the side wall of the connection ring (6), and two groups of threaded holes (22) are opened on the outer wall of the water jacket (7), and the first connection hole (21), the second connection hole (29) and the threaded hole (22) are detachably connected by bolts (25).

7. The handheld bone-absorbable orthopedic grinder according to claim 5, characterized in that: The ball joint structure (23) comprises a holder (232), wherein the holder (232) is fixedly connected to the top of the liquid suction ring tube (15), and the holder (232) is hinged to an end of the connecting rod (10) away from the connecting ring (6) via a hinge ball (231).

8. The handheld bone-absorbable orthopedic grinder according to claim 5, characterized in that: Two groups of limit strips (8) are fixedly connected to the outer wall of the water jacket (7) along the axis of the water jacket (7), and two groups of slide grooves (20) are opened on the inner wall of the connecting ring (6) along the axis of the connecting ring (6). Both ends of the slide groove (20) are open, and the two limit strips (8) are adapted to the two slide grooves (20).

9. The handheld bone-absorbable orthopedic grinder according to claim 3, characterized in that: A solenoid valve control box (2) is fixedly connected to the side wall of the machine body (1), and a water circuit control solenoid valve is arranged in the solenoid valve control box (2). The two ends of the water circuit control solenoid valve are respectively connected to one end of a water circuit outlet pipe (4) and one end of a water circuit access pipe (18). The other end of the water circuit outlet pipe (4) is connected to the water inlet interface (9), and the other end of the water circuit access pipe (18) is connected to the physiological saline supply device.

10. The handheld bone grinder capable of absorbing bone mud according to claim 9, characterized in that: The solenoid valve control box (2) is also provided with an air circuit control solenoid valve, and the two ends of the air circuit control solenoid valve are respectively connected to one end of the air pressure inlet pipe (3) and one end of the air pressure outlet pipe (17), the other end of the air pressure inlet pipe (3) is connected to the interior of the liquid suction annular pipe (15) through the negative pressure pipe (12), and the other end of the air pressure outlet pipe (17) is connected to the liquid extraction device.

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