Puncher

Abstract

The embodiment of the utility model provides a puncher, and provides a solution for electric punching and sucking out bone scraps through an air exhaust assembly, specifically, the puncher comprises a device body, a punching assembly and the air exhaust assembly used for sucking out the bone scraps during punching; the device body is connected with the punching assembly through the air exhaust assembly. The punching assembly comprises a motor, a power assembly and a punching lever, the power assembly comprises a driving wheel and at least one driven wheel, and the periphery of the driving wheel is connected with the driven wheels in an engaged mode; punching levers are arranged at the front ends of the driving wheel and the driven wheel; and the output end of the motor is connected with the driving wheel. The problems that in the prior art, efficiency is low, punching is not accurate, and time needs to be additionally consumed for cleaning generated bone scraps are solved through electric punching and suction of the bone scraps out through the air exhaust assembly, the efficiency is high, punching is accurate, the bone scraps can be sucked in while punching is conducted, and the operation time is shortened.

Description

Technical Field

[0001] The utility model relates to the medical field, in particular to a puncher. Background Art

[0002] During surgeries such as tibial plateau osteotomy, bone cement needs to be placed on the hardened bone after osteotomy so that the bone cement can be combined with the bone. In order to achieve a better combination, it is generally necessary to make several grooves on the hardened bone.

[0003] The existing method of making grooves is: a nail is pushed at the position where the groove is needed, and then hammered with a hammer to make more than ten small grooves with a depth of two or three millimeters.

[0004] However, this method has obvious disadvantages: multiple small grooves need to be hammered out separately, which has low work efficiency, increases the physical burden on medical staff and prolongs the operation time; this method is often poorly controlled, and once a mistake occurs, it is easy to collapse the bone and cause secondary injury to the patient; bone chips are generated during drilling, which requires another surgical time to clean. Utility Model Content

[0005] In view of the above problems, embodiments of the present utility model are proposed to provide a hole punch that overcomes the above problems or at least partially solves the above problems.

[0006] The utility model discloses a puncher, which is used for punching holes on the surface of hardened bones, and comprises a device body, a punching assembly, and an air suction assembly for sucking out bone chips during punching;

[0007] The device body is connected to the punching assembly via the air extraction assembly;

[0008] The punching assembly includes a motor, a power assembly and a punching bar. The power assembly includes a driving wheel and at least one driven wheel. The driving wheel is circumferentially meshed and connected to the driven wheel. The front ends of the driving wheel and the driven wheel are both provided with a punching bar. The output end of the motor is connected to the driving wheel.

[0009] Preferably, the air extraction component comprises an air extraction pump, a storage bin and an air extraction channel;

[0010] The storage bin for storing bone chips is provided below the vacuum pump, the vacuum channel runs through the punching assembly, one end of the vacuum channel is connected to the storage bin, and the other end of the vacuum channel is connected to the punching bar.

[0011] Preferably, a filter is provided between the vacuum pump and the storage bin.

[0012] Preferably, the air extraction channel includes a first air channel and a second air channel connected to the first air channel;

[0013] The first airway and the second airway are both in annular shape, the motor is provided in the middle of the first airway, and the punching bar is provided in the middle of the second airway;

[0014] One end of the first air channel is communicated with the storage bin, and one end of the second air channel away from the first air channel is communicated with the driving wheel and the driven wheel.

[0015] Preferably, the outside of the vacuum pump and the outside of the storage bin are wrapped with a third protective shell;

[0016] An exhaust grille is arranged outside the position where the vacuum pump is arranged inside the third protective shell, and an air intake grille is arranged between the vacuum pump and the storage bin in the third protective shell.

[0017] Preferably, the outer side of the motor is wrapped with a first protective shell, and the inner circle of the first protective shell is provided with the first air channel.

[0018] Preferably, the outer ring of the driven wheel is wrapped with a second protective shell, and the inner ring of the second protective shell is provided with the second air channel.

[0019] Preferably, the device body is a battery, and the air pump and the motor are electrically connected to the battery.

[0020] Preferably, an air inlet housing is provided at the bottom of the driving wheel and the driven wheel;

[0021] The air inlet housing is provided with an air inlet, and both the driving wheel and the driven wheel pass through the air inlet.

[0022] Preferably, the number of the driven wheels is six, and the driven wheels are arranged at equal intervals around the driving wheel.

[0023] The present application specifically includes the following advantages:

[0024] In the embodiments of the present application, compared with the problems of "low work efficiency, inaccurate drilling and bone chips that need to be cleaned up in the prior art", the present application provides a solution of electric drilling and sucking out bone chips through a vacuum assembly, specifically: comprising a device body, a drilling assembly and a vacuum assembly for sucking out bone chips during drilling; the device body is connected to the drilling assembly through the vacuum assembly; the drilling assembly comprises a motor, a power assembly and a drilling bar, the power assembly comprises a driving wheel and at least one driven wheel, the driving wheel circumference is meshed and connected to the driven wheel; the driving wheel and the driven wheel front end are both provided with a drilling bar; the output end of the motor is connected to the driving wheel. The problems of low efficiency, inaccurate drilling and bone chips that need to be cleaned up in the prior art are solved by electric drilling and sucking out bone chips through a vacuum assembly. The present application has high efficiency, accurate drilling and can suck out bone chips while drilling, thus reducing the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 It is an exploded schematic diagram of a hole puncher of the utility model;

[0027] Figure 2 It is a structural schematic diagram of a hole puncher of the utility model;

[0028] Figure 3 It is a cross-sectional schematic diagram of a hole puncher of the utility model;

[0029] Figure 4 It is a schematic diagram of the punching effect of hardened bone of the utility model;

[0030] 1. Punch bar; 2. Air inlet shell; 21. Air inlet; 3. Second protective shell; 31. Second air duct; 4. First protective shell; 41. First air duct; 5. Third protective shell; 51. Exhaust grille; 52. Air inlet grille; 6. Battery; 7. Power assembly; 71. Driving wheel; 72. Driven wheel; 8. Motor; 9. Filter; 10. Vacuum pump; 11. Control assembly; 12. Storage bin. DETAILED DESCRIPTION

[0031] In order to make the objects, features and advantages of the present application more obvious and understandable, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0032] The inventors have found through analysis of the prior art that during surgeries such as tibial plateau osteotomy, it is necessary to spread bone cement on the hardened bone part after osteotomy so that the bone cement can be combined with the bone. In order to achieve a better combination, it is generally necessary to punch a number of grooves on the hardened bone part. The existing method of punching grooves is to push a nail against the position where the groove is required, and then use a hammer to hammer out more than ten small grooves two or three millimeters deep. However, this method has obvious disadvantages: multiple small grooves need to be punched out separately, which has low work efficiency, increases the physical burden on medical staff and prolongs the operation time; this method is often poorly controllable, and once a mistake occurs, it is easy to collapse the bone, causing secondary damage to the patient; bone chips are generated during punching, and it takes surgical time again to clean them up.

[0033] The present invention solves the problem of efficiently completing the drilling of the tibia sclerotic bone surface in TKA (Total Knee Arthroplasty) surgery, avoids repeated drilling operations, improves surgical efficiency, and reduces surgical time.

[0034] It should be noted that TKA surgery is a description of knee replacement surgery. Knee replacement is often used to treat end-stage arthritis of the knee joint. Through joint osteotomy and joint surface replacement, the force line of the lower limbs, the range of joint motion, and pain relief can be restored. After rehabilitation exercises, patients can carry out daily life within the pain-free range of the knee joint, greatly improving the quality of life. Knee replacement surgery is often used for knee osteoarthritis, rheumatoid arthritis, and even joint flexion and extension limitations, valgus and valgus deformities, and cartilage destruction caused by joint synovium caused by ankylosis of the knee. At present, knee replacement is already a mature surgical technique. Through standardized and modular surgical operations, standard osteotomies can be performed on the femur and tibia. Through some chamber membrane measurements, combined with the release of the medial and lateral ligaments and the release of the joint capsule, the balance of articular cartilage and the normal force line of the lower limbs can be restored. After replacement, most joint functions can be restored to a basically normal level.

[0035] In the embodiments of the present application, compared with the existing technology of "low work efficiency, inaccurate drilling and bone chips that need to be cleaned up", the present application provides a solution of electric drilling and sucking out bone chips through a suction assembly, specifically: including a device body, a drilling assembly and a suction assembly for sucking out bone chips during drilling; the device body is connected to the drilling assembly through the suction assembly; the drilling assembly includes a motor 8, a power assembly 7 and a punching bar 1, the power assembly 7 includes a driving wheel 71 and at least one driven wheel 72, the driving wheel 71 is meshed and connected to the driven wheel 72; the front ends of the driving wheel 71 and the driven wheel 72 are both provided with a punching bar 1; the output end of the motor 8 is connected to the driving wheel 71. The problems of low efficiency, inaccurate drilling and bone chips that need to be cleaned up by electric drilling and a suction assembly in the existing technology are solved. The present application has high efficiency, accurate drilling, and can suck out bone chips while drilling, thereby reducing the operation time.

[0036] Reference Figure 1-4 , showing a schematic diagram of the structure of the puncher of the utility model, which may specifically include the following structures: including a device body, a punching assembly, and an air suction assembly for sucking out bone chips during punching;

[0037] The device body is connected to the punching assembly through the vacuum assembly; the punching assembly includes a motor 8, a power assembly 7 and a punching bar 1, the power assembly 7 includes a driving wheel 71 and at least one driven wheel 72, the driving wheel 71 is circumferentially meshed and connected to the driven wheel 72; the front ends of the driving wheel 71 and the driven wheel 72 are both provided with a punching bar 1; the output end of the motor 8 is connected to the driving wheel 71.

[0038] Next, a hole punch in this exemplary embodiment will be further described.

[0039] In one embodiment of the present application, the punching assembly includes a motor 8, a power assembly 7 and a punching bar 1, the power assembly 7 includes a driving wheel 71 and at least one driven wheel 72, the driving wheel 71 is circumferentially meshed and connected to the driven wheel 72; the front ends of the driving wheel 71 and the driven wheel 72 are both provided with a punching bar 1; the output end of the motor 8 is connected to the driving wheel 71.

[0040] As an example, the outer ring of the punching bar 1 is provided with threads for better drilling, and the length of the punching bar 1 can be adjusted according to the surgical situation.

[0041] In one embodiment of the present application, the number of the driven wheels 72 is six, and the driven wheels 72 are arranged at equal intervals around the driving wheel 71. When the motor 8 is started, the output end of the motor 8 drives the driving wheel 71 to rotate, and the driving wheel 71 and the driven wheel 72 are meshed, thereby driving the driven wheel 72 to rotate, and the punching bar 1 at the front end of the driving wheel 71 and the driven wheel 72 rotates.

[0042] In a specific embodiment, each punching bar 1 is installed at the center of each corresponding gear, and the motor 8 drives the middle driving wheel 71 to rotate, and the driving wheel 71 drives the surrounding driven wheels 72 to rotate, so that all the punching bars 1 rotate at the same time, thereby achieving simultaneous drilling of multiple holes. Through the design of the motor 8 and the driven wheel 72, multiple punching bars 1 can rotate at the same time, achieving simultaneous drilling of multiple holes in a single operation, and efficiently completing the drilling of sclerotic bone of the tibial plateau.

[0043] In one embodiment of the present application, the air extraction component includes an air extraction pump 10, a storage bin 12, and an air extraction channel; the storage bin 12 for storing bone scraps is provided below the air extraction pump 10, the air extraction channel runs through the punching component, one end of the air extraction channel is connected to the storage bin 12, and the other end of the air extraction channel is connected to the punching bar 1. A filter sheet 9 is provided between the air extraction pump 10 and the storage bin 12.

[0044] In a specific embodiment, an integrated vacuum pump 10 is designed, and the vacuum pump 10 is arranged in the third protective shell. Air is sucked from the storage bin 12 through the filter 9 and the air inlet grille 52, and the gas is discharged through the exhaust grille 51, so that negative pressure is generated in the storage bin 12; the storage bin 12 is connected to the air inlet 21 of the air inlet shell 2 through the first air duct 41 of the first protective shell 4 and the second air duct 31 of the second protective shell 3, so that the air inlet 21 at the position of the punching bar 1 generates suction, thereby absorbing the drilled bone chips when the punching bar 1 is drilling, and storing them in the storage bin 12.

[0045] The present application integrates the design of an air pump 10, sets an air inlet hole 21 at the position of each punching bar 1, and absorbs and cleans the drilled bone chips through the airway and the storage bin 12 while drilling, so that a clean bone surface can be obtained after the drilling is completed.

[0046] As an example, the filter plate 9 is used to prevent the bone chips from entering the vacuum pump 10. The filter plate 9, the air intake grille 52 and the storage bin 12 are sequentially arranged below the vacuum pump 10; the storage bin 12 is used to store the bone chips.

[0047] In one embodiment of the present application, the air extraction channel includes a first air channel 41 and a second air channel 31 connected to the first air channel 41; the first air channel 41 and the second air channel 31 are both annular, the motor 8 is provided in the middle of the first air channel 41, and the driving wheel 71 and the driven wheel 72 are provided in the middle of the second air channel 31; one end of the first air channel 41 is connected to the storage bin 12, and the end of the second air channel 31 away from the first air channel 41 is connected to the punching bar 1. The driving wheel 71 and the driven wheel 72 are provided with an air inlet housing 2 at the bottom; the air inlet housing 2 is provided with an air inlet 21, and the driving wheel 71 and the driven wheel 72 both penetrate the air inlet 21.

[0048] In a specific embodiment, the vacuum pump 10 draws air, and the bone chips enter the second air passage 31 along the air inlet 21, then enter the first air passage 41, and finally enter the storage bin 12 for storage.

[0049] In one embodiment of the present application, the outside of the vacuum pump 10 and the outside of the storage bin 12 are wrapped with a third protective shell 5; the inside of the third protective shell 5 is provided with an exhaust grille 51 outside the position where the vacuum pump 10 is provided, and the third protective shell 5 is provided with an air intake grille 52 between the vacuum pump 10 and the storage bin 12. The outside of the motor 8 is wrapped with a first protective shell 4, and the inner circle of the first protective shell 4 is provided with the first air duct 41. The outer circle of the driven wheel 72 is wrapped with a second protective shell 3, and the inner circle of the second protective shell 3 is provided with the second air duct 31.

[0050] As an example, the puncher is connected to an air inlet shell 2, a second protective shell 3, a first protective shell 4, a third protective shell 5 and a battery 6 in sequence from bottom to top; the air inlet shell 2 wraps the punching bar 1, the inner circle of the second protective shell 3 is provided with a second air duct 31, and the center of the second air duct 31 is provided with a power assembly 7; the inner circle of the first protective shell 4 is provided with a first air duct 41, and the center of the first air duct 41 is provided with a motor 8; the third protective shell 5 wraps the storage bin 12 and the air pump 10, and the top of the air pump 10 is connected to the battery 6.

[0051] In one embodiment of the present application, the device body is a battery 6, and the air pump 10 and the motor 8 are electrically connected to the battery 6. A control component 11 is also provided on the top of the battery 6, and the control component 11 controls the battery 6, the motor 8 and the air pump 10.

[0052] Although the preferred embodiments of the utility model embodiments have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model embodiments.

[0053] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0054] The hole puncher provided by the utility model is introduced in detail above. The principle and implementation mode of the utility model are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A puncher, used for punching holes on the surface of hardened bones, characterized in that: It includes a device body, a punching assembly, and an air extraction assembly for sucking out bone chips during punching; The device body is connected to the punching assembly via the air extraction assembly; The punching assembly includes a motor, a power assembly and a punching bar. The power assembly includes a driving wheel and at least one driven wheel. The driving wheel is circumferentially meshed and connected to the driven wheel. The front ends of the driving wheel and the driven wheel are both provided with a punching bar. The output end of the motor is connected to the driving wheel.

2. The hole punch according to claim 1, characterized in that: The air extraction component includes an air extraction pump, a storage bin and an air extraction channel; The storage bin for storing bone chips is provided below the vacuum pump, the vacuum channel runs through the punching assembly, one end of the vacuum channel is connected to the storage bin, and the other end of the vacuum channel is connected to the punching bar.

3. The hole punch according to claim 2, characterized in that: A filter sheet is provided between the vacuum pump and the storage bin.

4. The hole punch according to claim 2, characterized in that: The air extraction channel includes a first air channel and a second air channel connected to the first air channel; The first airway and the second airway are both in annular shape, the motor is provided in the middle of the first airway, and the driving wheel and the driven wheel are provided in the middle of the second airway; One end of the first air channel is communicated with the storage bin, and one end of the second air channel away from the first air channel is communicated with the punching bar.

5. The hole punch according to claim 2, characterized in that: The outside of the vacuum pump and the outside of the storage bin are wrapped with a third protective shell; An exhaust grille is arranged outside the position where the vacuum pump is arranged inside the third protective shell, and an air intake grille is arranged between the vacuum pump and the storage bin in the third protective shell.

6. The hole punch according to claim 4, characterized in that: The outer side of the motor is wrapped with a first protective shell, and the inner circle of the first protective shell is provided with the first air channel.

7. The hole punch according to claim 4, characterized in that: The outer ring of the driven wheel is wrapped with a second protective shell, and the inner ring of the second protective shell is provided with the second air channel.

8. The hole punch according to claim 2, characterized in that: The device body is a battery, and the air pump and the motor are electrically connected to the battery.

9. The hole punch according to claim 1, characterized in that: The bottom of the driving wheel and the driven wheel are provided with air inlet housings; The air inlet housing is provided with an air inlet, and both the driving wheel and the driven wheel pass through the air inlet.

10. The hole punch according to claim 1, characterized in that: The number of the driven wheels is six, and the driven wheels are arranged at equal intervals around the driving wheel.

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