Elbow joint excision instrument

Abstract

The invention discloses an elbow joint resection instrument, belongs to the technical field of joint resection, and aims to solve the problems that a cutter part of the elbow joint resection instrument does not have a contraction function, and a professional bone residue taking instrument needs to be replaced to clean bone residues of an elbow joint after an elbow joint resection operation is completed. A rotating shaft is fixedly connected to the output tail end of the motor, an electric telescopic column is fixedly connected to the rotating shaft, a sleeve is fixedly installed on the side wall of a motor shell, a pushing assembly is slidably installed on the sleeve, and a connecting piece is fixedly installed on the side wall of the end, close to the electric telescopic column, of the pushing assembly; a plurality of collecting assemblies are slidably installed on the peripheral wall of the end, away from the motor, of the sleeve in an embedded mode, and a bone cutting assembly is in threaded connection with the end, away from the connecting piece, of the pushing assembly. The hole diameter of the hole formed in the elbow joint part is reduced, and the pain feeling of a patient is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of joint resection, in particular to an elbow joint resection instrument. Background Art

[0002] Elbow resection is the removal of the bones that make up the lesion area of ​​the elbow joint in order to achieve the effect of removing the lesion and improving the function of the elbow joint. During the process of elbow resection, a professional elbow resection instrument is required to resect the elbow joint. Currently, the cutting blade of most elbow resection instruments cannot be retracted. If this is set up, when the elbow resection instrument is inserted into the elbow joint, it may cause secondary damage to the human body.

[0003] Chinese patent CN212466099U announces an elbow joint resection instrument, including an intramedullary positioning rod, the intramedullary positioning rod includes a coaxially connected cutting section and a limiting guide section, the limiting guide section includes an abutment surface connected to the cutting section for abutting against the surface of the bone to be removed and a limiting surface opposite to the abutment surface; and a bone opener, the bone opener includes an opening drill section, the opening drill section is formed with a cavity that matches the outer peripheral wall of the limiting guide section. Among them, a fitting surface that matches the limiting surface and has a preset depth is formed in the cavity, and the bone opener is configured to be able to rotate in the circumferential direction under the action of an external force, and when it rotates in the circumferential direction, it can be sleeved on the limiting guide section through the cavity, and slide axially relative to the limiting guide section until the limiting surface abuts against the fitting surface.

[0004] The elbow resection instrument disclosed in the above-mentioned prior art can effectively improve the accuracy of osteotomy; however, the cutting knife on the elbow resection instrument does not have the function of retraction. When the elbow resection instrument is inserted into the elbow joint, the cutting knife may cause secondary damage to the human body. Moreover, during the existing elbow resection surgery, the bone residues after cutting cannot be removed from the body in time. Generally, it is necessary to replace a professional bone residue removal instrument to clean the bone residue inside the elbow joint. Not only is the operation cumbersome, but the surgical instrument needs to be inserted into the patient's elbow joint multiple times, increasing the probability of causing harm to the patient.

[0005] In view of the above problems, an elbow joint resection instrument is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an elbow joint resection instrument, which is used to work, thereby solving the problem that the cutting knife part of the elbow joint resection instrument in the above background does not have a retraction function, and when the elbow joint resection instrument is inserted into the elbow joint part, the cutting knife part may cause secondary damage to the human body, and after the elbow joint resection operation is completed, a professional bone residue removal instrument needs to be replaced to clean the bone residue of the elbow joint, which is not only cumbersome to operate, but also requires the surgical instrument to be inserted into the patient's elbow joint multiple times, increasing the patient's surgical risk.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an elbow joint resection instrument, comprising an operating handle and a controller embedded in the side wall of the operating handle, a button embedded in the side wall of the operating handle for pressing, a motor embedded and fixedly installed on the side wall at one end of the operating handle, a rotating shaft fixedly connected to the output end of the motor, an electric telescopic column fixedly connected to the side wall at the end of the rotating shaft away from the motor, a sleeve fixedly installed on the side wall of the motor housing, the rotating shaft and the electric telescopic column are both arranged in the inner cavity of the sleeve, a pushing component is slidably installed on the inner wall of the inner cavity at the end of the sleeve away from the motor, a connecting piece is fixedly installed on the side wall of the pushing component close to the electric telescopic column, a plurality of collecting components are embedded and slidably installed on the peripheral wall of the end of the sleeve away from the motor, the plurality of collecting components are respectively slidably connected to the pushing components, and a bone cutting component is threadedly connected to the end of the pushing component away from the connecting piece.

[0008] Further, the sleeve includes a cylinder body fixedly mounted on the side wall of the motor housing, an inner chamber is provided inside the cylinder body, a plurality of make way grooves are provided on the peripheral wall of the cylinder body at one end away from the motor, and the plurality of make way grooves are connected with the inner chamber, two inner walls opposite to the make way grooves are respectively provided with slide grooves, the slide grooves are upward from left to right, the collecting component is embedded and slidably installed in the inner chamber of the slide groove, a pair of limit grooves are provided on the inner wall of the inner chamber at one end away from the motor, and the pushing component is embedded and slidably installed in the inner chamber of the limit groove; The electric telescopic column comprises a telescopic column body, and a first protrusion is fixedly mounted on the outer wall of the output end of the telescopic column body; The connecting piece comprises a connecting block. A first groove is formed on a side wall of the connecting block close to the first protrusion. The shape and size of the first protrusion match those of the first groove.

[0009] Furthermore, the pushing assembly includes a sliding plate and a pair of limiting sliding blocks fixedly installed on the peripheral wall of the sliding plate, the limiting sliding block is embedded in the inner cavity of the limiting groove, a swivel is rotatably installed on the side wall of the sliding plate near the connecting block, a connecting shaft is slidably installed through the middle of the sliding plate, the connecting shaft is arranged in the inner ring of the swivel, a connecting block is fixedly installed on one end of the connecting shaft near the electric telescopic column, the connecting block and the swivel are elastically connected by a first spring, a plurality of limiting columns are fixedly installed on the edge of the side wall of the sliding plate near the collecting assembly, the plurality of limiting columns are arranged in a circular array, the collecting assembly and the limiting columns are slidably connected, a second protrusion is fixedly installed on the side wall of the connecting shaft near one end of the collecting assembly, a connecting tube is also rotatably installed on the side wall of the sliding plate near the collecting assembly, the connecting shaft is arranged in the swivel, the first spring and the inner ring of the connecting tube, and the bone cutting assembly is threadedly connected to the connecting tube.

[0010] Furthermore, the bone cutting assembly includes a shell, a threaded ring is fixedly installed on the side wall of the shell close to the connecting tube, the threaded ring is threadedly connected to the connecting tube, a baffle is fixedly installed on the side wall of the shell away from the connecting tube, a circular slide is slidably arranged in the inner cavity of the shell, a plurality of square blocks are fixedly installed on the peripheral wall of the circular slide, and a plurality of first mounting seats are fixedly installed on the bottom surface of the circular slide, and the first mounting seats are arranged in a circular array.

[0011] Furthermore, the shell includes a shell body, a plurality of through grooves are opened on the peripheral wall of the shell body, and the plurality of through grooves are arranged in a circular array. Inner grooves are opened on two opposite inner walls in the inner cavity of the through groove respectively, and a blade is embedded and slidably installed in the inner groove. A second mounting seat is fixedly installed on the inner side wall of the blade. The first mounting seat and the second mounting seat are rotatably connected by a connecting rod. A plurality of square grooves are opened on the side wall of the inner cavity of the shell body, and a square block is embedded and slidably installed in the inner cavity of the square groove, and the square block is elastically connected to the inner wall of the square groove by a second spring.

[0012] Furthermore, the round skateboard includes a round skateboard body, a second groove is formed on a side wall of the round skateboard body close to the second protrusion, and the size and shape of the second protrusion match those of the second groove.

[0013] Furthermore, the blade comprises a blade body, and stoppers are fixedly mounted on the outer walls on both sides of the blade body respectively, and the stoppers are embedded and slidably mounted in the inner cavity of the inner groove.

[0014] Furthermore, the collecting component includes a sliding rod, and installation chambers are respectively opened on the outer sides of both sides of the sliding rod, and guide grooves are respectively opened on the inner walls at both ends of the inner cavity of the installation chamber, and a temporary storage box is slidably arranged in the inner cavity of the installation chamber, and the temporary storage box and the side wall of the inner cavity of the installation chamber are elastically connected by a third spring, and guide blocks are fixedly installed on the side walls at both ends of the temporary storage box, and the guide blocks are embedded in the inner cavity of the guide groove for sliding, and a magnetic plate is fixedly installed on the outer wall of the temporary storage box, and sliding columns are fixedly installed on the outer walls of both sides of the sliding rod, and the sliding columns are embedded in the inner cavity of the sliding groove for sliding, and a U-shaped slip ring is fixedly installed on the inner wall of the sliding rod, and the U-shaped slip ring is slidably installed on the limit column.

[0015] Furthermore, the temporary storage box comprises a box body, and collection buckets are respectively provided on the top surface and the bottom surface of the box body.

[0016] Furthermore, an inclined surface is arranged at one end of the box body close to the sliding plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The extension length of the blade has a multi-stage adjustment effect, and the appropriate extension length of the blade can be selected according to the cutting of different parts of the elbow joint, which has strong flexibility; and when not cutting, the blade can be retracted into the inner cavity of the through slot to prevent additional personal injury to the patient when the instrument is inserted into or withdrawn from the elbow joint; in addition, the retraction of the blade into the through slot can reduce the size of the instrument. When medical staff insert the instrument into the elbow joint, the smaller the size of the instrument, the smaller the aperture of the hole opened in the elbow joint, the smaller the scar area, the lower the patient's pain perception, and is beneficial to the patient's postoperative recovery; after the bone residue is collected by the collection component, the number and size of the residual bone residue inside the elbow joint are determined by an X-ray machine, and then it is determined whether it is necessary to further replace the instrument to clean the bone residue in the elbow joint. Under the premise that the residual bone residue does not affect the health of the patient, it can be chosen not to clean it. Even if the residual bone residue needs to be cleaned, after the bone residue is collected by the collection component, it will also reduce the labor intensity of medical staff, reduce the operation time, and reduce the surgical risk of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified image of point A; Figure 3 It is a schematic diagram of the disassembly of the sleeve and the bone cutting assembly of the present invention; Figure 4 It is a schematic diagram of the disassembly of the sleeve and the collecting assembly of the present invention; Figure 5 For the present invention Figure 4 A magnified view of point B; Figure 6 The electric telescopic column, the pushing assembly, the connecting piece, the collecting assembly and the bone cutting assembly of the present invention Schematic cross-sectional view of ; Figure 7 For the present invention Figure 6 Enlarged view of point C; Figure 8 is a schematic diagram of the three-dimensional structure of the bone cutting assembly of the present invention; Fig. 9 is a schematic diagram of the disassembly of the bone cutting assembly of the present invention; Fig.10 It is a schematic diagram of the sleeve and the collecting assembly of the present invention split from another angle; Fig.11 For the present invention Fig.10 The enlarged view of point D; Fig.12 It is a disassembly schematic diagram of the collection assembly of the present invention; Fig.13For the present invention Fig.12 The enlarged view of point E; Fig.14 It is a three-dimensional structural schematic diagram of the temporary storage box of the present invention.

[0019] In the figure: 1. operating handle; 2. controller; 3. button; 4. motor; 5. rotating shaft; 6. electric telescopic column; 61. telescopic column body; 62. first protrusion; 7. pushing assembly; 71. sliding plate; 72. limiting slider; 73. first spring; 74. connecting shaft; 75. limiting column; 76. rotating ring; 77. second protrusion; 78. connecting cylinder; 8. connecting piece; 81. connecting block; 82. first groove; 9. collecting assembly; 91. sliding rod; 92. installation chamber; 93. guide groove; 94. temporary storage box; 941. box body; 942. collecting bucket; 943. inclined plane; 95. magnetic plate; 96. guide block; 97. sliding column; 98. U Slip ring; 99, the third spring; 10, the bone cutting assembly; 101, the shell; 1011, the shell body; 1012, the through groove; 1013, the inner groove; 1014, the square groove; 102, the threaded ring; 103, the baffle; 104, the circular slide; 1041, the circular slide body; 1042, the second groove; 105, the square block; 106, the first mounting seat; 107, the second mounting seat; 108, the connecting rod; 109, the blade; 1091, the blade body; 1092, the baffle; 120, the second spring; 20, the sleeve; 201, the cylinder; 202, the inner chamber; 203, the clearance groove; 204, the slide groove; 205, the limit groove. DETAILED DESCRIPTION

[0020] 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.

[0021] In order to solve the technical problem that the cutting blade of the elbow joint removal instrument in the prior art does not have a retracting function, when the elbow joint removal instrument is inserted into the elbow joint, the cutting blade may cause secondary damage to the human body, such as Figure 1 - Fig.13 As shown, the following preferred technical solutions are provided: An elbow joint resection instrument comprises an operating handle 1 and a controller 2 embedded in the side wall of the operating handle 1. The operating handle 1 is ergonomically designed to be easy for medical personnel to hold and is conducive to the operation of the instrument by medical personnel. In addition, medical personnel can set the parameters required for the operation on the controller 2 in advance. A button 3 is embedded in the side wall of the operating handle 1 for pressing. A motor 4 is embedded and fixedly installed on the side wall at one end of the operating handle 1. When the medical personnel presses the button 3, the controller 2 controls the motor 4 to rotate at a high speed according to a preset speed. A rotating shaft 5 is fixedly connected to the output end of the motor 4. The rotating shaft 5 can play a transmission role and transmit power for subsequent bone cutting operations. The rotating shaft 5 is fixed on the side wall at one end away from the motor 4. An electric telescopic column 6 is connected, a sleeve 20 is fixedly installed on the side wall of the motor 4 housing, the rotating shaft 5 and the electric telescopic column 6 are both arranged in the inner cavity of the sleeve 20, a pushing component 7 is slidably installed on the inner wall of the inner cavity at one end of the sleeve 20 away from the motor 4, and a connecting piece 8 is fixedly installed on the side wall of the pushing component 7 close to one end of the electric telescopic column 6. By energizing the electric telescopic column 6, the electric telescopic column 6 can be docked with the connecting piece 8, and then the pushing component 7 can be pushed to slide. A plurality of collecting components 9 are embedded and slidably installed on the peripheral wall of the end of the sleeve 20 away from the motor 4, and the plurality of collecting components 9 are respectively slidably connected to the pushing component 7, and a bone cutting component 10 is threadedly connected to one end of the pushing component 7 away from the connecting piece 8.

[0022] When the medical staff puts the bone cutting assembly 10 into the lesion site of the elbow joint, by pressing the button 3, the controller 2 energizes the electric telescopic column 6, so that the electric telescopic column 6 and the connecting piece 8 are connected. At this time, under the thrust of the electric telescopic column 6, the connecting piece 8 pushes the pushing assembly 7 and the bone cutting assembly 10 to slide in the direction away from the electric telescopic column 6. During the sliding process, the pushing assembly 7 pushes the collecting assembly 9 to slide synchronously. While sliding, the collecting assembly 9 moves outward toward the outside of the peripheral wall of the sleeve 20 and surrounds the bone cutting assembly 10. When the collecting assembly 9 slides into place, the bone cutting assembly 10 is in the sleeve. Outside the cylinder 20, under the thrust of the electric telescopic column 6, the connecting piece 8 will push the pushing assembly 7 to continue sliding in the direction away from the electric telescopic column 6, dock with the bone cutting assembly 10, and act on the bone cutting assembly 10, so that the cutting knife part of the bone cutting assembly 10 extends from the inside of the bone cutting assembly 10. After adjusting the extension length, the controller 2 starts the motor 4 to rotate at a high speed according to the preset speed. When the motor 4 rotates, the power is transmitted to the bone cutting assembly 10 through the rotating shaft 5, the electric telescopic column 6, the connecting piece 8, and the pushing assembly 7, so that the bone cutting assembly 10 rotates at a high speed to cut the lesion.

[0023] The sleeve 20 includes a barrel 201 fixedly mounted on the side wall of the motor 4 housing, an inner chamber 202 is provided inside the barrel 201, a plurality of make way grooves 203 are provided on the peripheral wall of the barrel 201 at one end away from the motor 4, and the plurality of make way grooves 203 are connected to the inner chamber 202, the size and shape of the make way grooves 203 match the collection component 9, the purpose is that when the collection component 9 is not extended, the collection component 9 can be temporarily stored in the inner cavity of the make way grooves 203, so as to save space and reduce the volume. At the same time, when medical personnel insert the instrument into the elbow joint, the volume of the instrument becomes smaller, the aperture of the hole opened in the elbow joint is reduced, the scar area is reduced, the pain perception of the patient is reduced, and the patient's postoperative recovery is facilitated. Slide grooves 204 are respectively provided on the two opposite inner walls of the groove 203, and the slide grooves 204 show an upward trend from left to right. The collecting component 9 is embedded and slidably installed in the inner cavity of the slide groove 204. A pair of limiting grooves 205 are provided on the inner wall of the inner chamber 202 away from the motor 4. The pushing component 7 is embedded and slidably installed in the inner cavity of the limiting groove 205. The electric telescopic column 6 pushes the pushing component 7 to slide in the inner cavity of the limiting groove 205. The pushing component 7 will drive the collecting component 9 to slide in the slide groove 204 during the sliding process. Since the slide groove 204 shows an upward trend from left to right, the collecting component 9 will extend toward the outside of the give way groove 203 during the sliding process, thereby surrounding the bone cutting component 10, which is beneficial to the subsequent collection of bone residues.

[0024] The electric telescopic column 6 comprises a telescopic column body 61 , and a first protrusion 62 is fixedly mounted on the outer wall of the output end of the telescopic column body 61 .

[0025] The connecting member 8 includes a connecting block 81, and a first groove 82 is formed on the side wall of the connecting block 81 close to the first protrusion 62. The first protrusion 62 matches the first groove 82 in shape and size. When the first protrusion 62 is inserted into the first groove 82, the electric telescopic column 6 and the connecting member 8 are docked, and subsequent power transmission can be carried out.

[0026] The pushing assembly 7 includes a sliding plate 71 and a pair of limiting sliding blocks 72 fixedly mounted on the peripheral wall of the sliding plate 71. The limiting sliding blocks 72 are embedded and slidably mounted in the inner cavity of the limiting groove 205. A swivel 76 is rotatably mounted on the side wall of the sliding plate 71 close to the connecting block 81. A connecting shaft 74 is slidably mounted through the middle of the sliding plate 71. A bearing with damping can be arranged between the sliding plate 71 and the connecting shaft 74. The connecting shaft 74 will not rotate without the action of external force, so as to prevent the connecting block 81 from being misaligned with the first protrusion 62 after use, which is inconvenient for the next use. The connecting shaft 74 is arranged in the inner ring of the swivel 76. A connecting block 81 is fixedly installed at one end of the connecting shaft 74 near the electric telescopic column 6. The connecting block 81 is elastically connected to the rotating ring 76 through the first spring 73. Through the setting, when the electric telescopic column 6 and the connecting piece 8 drive the connecting shaft 74, it will not be restricted by the first spring 73. A plurality of limiting columns 75 are fixedly installed at the edge of the side wall of the sliding plate 71 near the collecting component 9. The plurality of limiting columns 75 are arranged in a circular array. The collecting component 9 is slidably connected with the limiting columns 75. When the electric telescopic column 6 pushes the sliding plate 71 to move through the connecting piece 8, the sliding plate 71 will synchronously push the collecting component 9. The collecting assembly 9 slides in the slide groove 204. Since the slide groove 204 has an upward trend from left to right, the collecting assembly 9 will extend outward from the giving way groove 203 during the sliding process. The collecting assembly 9 is slidably connected to the limiting column 75 so that the collecting assembly 9 will not be limited, thereby allowing the collecting assembly 9 to smoothly extend outward from the giving way groove 203. The side wall of the connecting shaft 74 near one end of the collecting assembly 9 is fixedly installed with a second protrusion 77. The second protrusion 77 can be docked with the bone cutting assembly 10 and transmit power. The side wall of the sliding plate 71 near the collecting assembly 9 is also A connecting tube 78 is rotatably installed, and a bearing with damping can also be arranged between the sliding plate 71 and the connecting tube 78. The connecting tube 78 will not rotate without the action of external force, so as to prevent the second protrusion 77 and the second groove 1042 from being misaligned after use, which is inconvenient for the next use. The connecting shaft 74 is arranged in the inner circle of the swivel 76, the first spring 73 and the connecting tube 78, and the bone cutting assembly 10 is threadedly connected to the connecting tube 78. By rotatably installing the connecting tube 78 on the sliding plate 71, the connecting shaft 74 will not be restricted by the sliding plate 71 when driving the bone cutting assembly 10 to rotate through the second protrusion 77.

[0027] The bone cutting assembly 10 includes a shell 101, a threaded ring 102 is fixedly installed on the side wall of the shell 101 close to the connecting tube 78, the threaded ring 102 is threadedly connected to the connecting tube 78, a baffle 103 is fixedly installed on the side wall of the shell 101 away from the connecting tube 78, a circular slide plate 104 is slidably arranged in the inner cavity of the shell 101, a plurality of square blocks 105 are fixedly installed on the peripheral wall of the circular slide plate 104, and a plurality of first mounting seats 106 are fixedly installed on the bottom surface of the circular slide plate 104, and the first mounting seats 106 are arranged in a circular array.

[0028] The shell 101 includes a shell body 1011, and a plurality of through grooves 1012 are opened on the peripheral wall of the shell body 1011. The plurality of through grooves 1012 are arranged in a circular array, and inner grooves 1013 are respectively opened on two opposite inner walls in the inner cavity of the through groove 1012, and a blade 109 is embedded and slidably installed in the inner groove 1013, and a second mounting seat 107 is fixedly installed on the inner side wall of the blade 109, and the first mounting seat 106 and the second mounting seat 107 are rotatably connected by a connecting rod 108, and a plurality of square grooves 1014 are opened on the side wall of the inner cavity of the shell body 1011, and a square block 105 is embedded and slidably installed in the inner cavity of the square groove 1014, and the square block 105 is elastically connected to the inner wall of the square groove 1014 by a second spring 120.

[0029] The circular slide plate 104 includes a circular slide plate main body 1041, and a second groove 1042 is opened on the side wall of the circular slide plate main body 1041 near the second protrusion 77. The size and shape of the second protrusion 77 match the second groove 1042. When the second protrusion 77 is inserted into the second groove 1042, it can not only push the circular slide plate main body 1041 to slide and drive the blade 109 to extend toward the outside of the through groove 1012, but also transmit power to drive the connecting cylinder 78 and the bone cutting assembly 10 to rotate, thereby achieving the bone cutting effect.

[0030] The blade 109 includes a blade body 1091, on the outer walls of both sides of the blade body 1091 are fixedly installed blocks 1092, the block 1092 is embedded and slidably installed in the inner cavity of the inner groove 1013, the setting of the block 1092 plays a role of limiting the blade 109, preventing the blade 109 from slipping out of the through groove 1012.

[0031] Specifically, when the medical staff puts the bone cutting assembly 10 into the lesion site of the elbow joint, by pressing the button 3, the controller 2 energizes the telescopic column body 61, so that the first protrusion 62 on the telescopic column body 61 is docked with the first groove 82 on the connecting block 81. At this time, under the thrust of the telescopic column body 61, the connecting block 81 will push the connecting shaft 74 to slide in the direction away from the electric telescopic column 6. Under the connecting action of the first spring 73, the sliding plate 71 also synchronously follows the sliding of the connecting shaft 74. In this process, the sliding plate 71 pushes the collecting assembly 9 to slide synchronously in the sliding groove 204 through the limiting column 75. Since the sliding groove 204 has an upward trend from left to right, the collecting assembly 9 will extend toward the outside of the giving way groove 203 during the sliding process, thereby surrounding the bone cutting assembly 10, which is beneficial to the subsequent collection of bone residues. When the collecting assembly 9 slides into place, the bone cutting assembly 10 is in On the outside of the cylinder 201, under the thrust of the telescopic column body 61 and the compression performance of the first spring 73, the connecting block 81 will push the connecting shaft 74 to continue sliding in the direction away from the electric telescopic column 6 until the second protrusion 77 is docked with the second groove 1042, and the connecting shaft 74 continues to slide and generates a thrust on the circular slide plate 104. The pressure on the circular slide plate 104 will disperse the thrust to the blade 109 through the first mounting seat 106, the connecting rod 108 and the second mounting seat 107, so that the blade 109 extends outward from the inner cavity of the inner groove 1013 toward the outside of the through groove 1012. By controlling the sliding distance of the circular slide plate 104, the extension length of the blade 109 is controlled, and then the motor 4 drives the connecting cylinder 78 and the bone cutting assembly 10 to rotate at high speed through the rotating shaft 5, the telescopic column body 61, the connecting block 81 and the connecting shaft 74, and finally achieves the effect of cutting the lesion site.

[0032] The above-mentioned arrangement has the effect of multi-speed adjustment, and the appropriate extension length of the blade 109 can be selected according to the cutting of different parts of the elbow joint, which has strong flexibility; and when not cutting, the blade 109 can be retracted into the inner cavity of the through slot 1012 to prevent additional personal injury to the patient when the instrument is inserted into or withdrawn from the elbow joint; in addition, the retraction of the blade 109 into the through slot 1012 can reduce the size of the instrument. When medical staff insert the instrument into the elbow joint, the smaller the size of the instrument, the smaller the aperture of the hole opened in the elbow joint, the smaller the scar area, the lower the patient's pain perception, and the better the patient's postoperative recovery.

[0033] In order to solve the technical problem that after the elbow joint resection surgery, it is necessary to replace the specialized bone removal instrument to clean the bone residue of the elbow joint, which is not only cumbersome to operate, but also requires the surgical instrument to be inserted into the patient's elbow joint multiple times, increasing the surgical risk of the patient. Fig.10 - Fig.14 As shown, the following preferred technical solutions are provided: The collecting assembly 9 includes a slide bar 91, and installation chambers 92 are respectively opened on the walls on both sides of the slide bar 91, and guide grooves 93 are respectively opened on the inner walls at both ends of the inner cavity of the installation chamber 92. A temporary storage box 94 is slidably set in the inner cavity of the installation chamber 92, and the temporary storage box 94 is elastically connected to the side walls of the inner cavity of the installation chamber 92 through a third spring 99. Guide blocks 96 are fixedly installed on the side walls at both ends of the temporary storage box 94, and the guide blocks 96 are embedded and slidably installed in the inner cavity of the guide groove 93. A magnetic plate 95 is fixedly installed on the outer wall of the temporary storage box 94, and sliding columns 97 are fixedly installed on the outer walls of both sides of the slide bar 91. The sliding columns 97 are embedded and slidably installed in the inner cavity of the slide groove 204. A U-shaped slip ring 98 is fixedly installed on the inner wall of the slide bar 91, and the U-shaped slip ring 98 is slidably installed on the limit column 75.

[0034] The temporary storage box 94 includes a box body 941, and collection buckets 942 are respectively provided on the top surface and the bottom surface of the box body 941. Since the collection buckets 942 are provided on the top surface and the bottom surface, bone residues can be collected regardless of the angle of the box body 941, thereby maximizing the collection.

[0035] An inclined surface 943 is disposed at one end of the box body 941 close to the sliding plate 71 .

[0036] Specifically, under the thrust of the telescopic column body 61, the connecting block 81 will push the connecting shaft 74 to slide in the direction away from the electric telescopic column 6. Under the connecting action of the first spring 73, the sliding plate 71 also synchronously follows the sliding of the connecting shaft 74. In this process, the sliding plate 71 pushes the collecting component 9 to slide synchronously in the sliding groove 204 through the limiting column 75. Since the sliding groove 204 has an upward trend from left to right, the collecting component 9 will extend toward the outside of the giving way groove 203 during the sliding process. After the sliding rod 91 is fully extended out of the giving way groove 203, the side wall of the giving way groove 203 loses its blocking effect on the temporary storage box 94. Under the elastic force of the third spring 99, the temporary storage box 94 will pop out to the outside of the installation chamber 92. The farthest distance that 94 pops out is to be flush with the side wall of the inner cavity of the give way groove 203. Since a magnetic plate 95 is fixedly installed on the outer wall of the temporary storage box 94, the two adjacent temporary storage boxes 94 will be attracted to each other to form a whole under the suction of the magnetic plate 95, and will eventually form an enclosure for the bone cutting assembly 10. One end of the enclosure is tightly fitted with the baffle 103 to reduce the amount of bone residue splashing outside the enclosure. Two adjacent temporary storage boxes 94 are far apart and cannot be attracted by the magnetic plate 95. Therefore, a gap is formed on the enclosure to facilitate the blade 109 to resect the lesion. During the bone cutting process of the blade 109, the bone residue will be thrown into the collection bucket 942 for collection under the action of centrifugal force.

[0037] When the bone cutting is completed, the telescopic column body 61 retracts and resets. At the same time, the blade 109 of the bone cutting assembly 10 also begins to retract into the interior of the through groove 1012. Because the first protrusion 62 and the first groove 82 have a magnetic attraction, under the action of the magnetic force, as the telescopic column body 61 continues to shorten, it will synchronously bring the pushing assembly 7 back to its original position. During the resetting process of the sliding plate 71, the sliding rod 91 will be driven to slide and reset through the limiting column 75. Since the end of the box body 941 close to the sliding plate 71 is provided with an inclined surface 943, when the sliding rod 91 starts to slide and reset, the inclined surface 943 will abut against the inner wall of the yield groove 203, thereby separating the two adjacent box bodies 941 and retracting them into the inner cavity of the installation chamber 92 respectively, thereby temporarily storing the collected bone residues without leakage. Then the medical staff can withdraw the instrument from the elbow joint, and use the X-ray machine to judge the amount and size of the residual bone residues in the elbow joint, and then judge whether it is necessary to further replace the instrument to clean the bone residues in the elbow joint.

[0038] After the current elbow resection surgery is completed, it is usually necessary to replace a professional bone removal instrument to clean the bone residue in the elbow joint. Not only is the operation cumbersome, but the surgical instrument needs to be inserted into the patient's elbow joint multiple times, increasing the surgical risk for the patient. With the above-mentioned arrangement, after the bone residue is collected by the collection component 9, the amount and size of the residual bone residue inside the elbow joint are determined by an X-ray machine, and then it is determined whether it is necessary to further replace the instrument to clean the bone residue in the elbow joint. Under the premise that the residual bone residue does not affect the patient's health, it is possible to choose not to clean it. Even if the residual bone residue needs to be cleaned, after the bone residue is collected by the collection component 9, it will also reduce the labor intensity of medical staff, reduce the operation time, and reduce the surgical risk for the patient.

[0039] 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 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 device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elbow joint removal instrument, comprising an operating handle (1) and a controller (2) embedded in a side wall of the operating handle (1), a button (3) embedded in the side wall of the operating handle (1), and a motor (4) embedded and fixedly mounted on the side wall at one end of the operating handle (1), characterized in that: The output end of the motor (4) is fixedly connected to a rotating shaft (5), and an electric telescopic column (6) is fixedly connected to the side wall of the rotating shaft (5) at an end away from the motor (4). A sleeve (20) is fixedly installed on the side wall of the motor (4) housing. The rotating shaft (5) and the electric telescopic column (6) are both arranged in the inner cavity of the sleeve (20). A pushing component (7) is slidably installed on the inner wall of the inner cavity at the end of the sleeve (20) away from the motor (4). A connecting piece (8) is fixedly installed on the side wall of the pushing component (7) at an end close to the electric telescopic column (6). A plurality of collecting components (9) are embedded and slidably installed on the peripheral wall of the end of the sleeve (20) away from the motor (4). The plurality of collecting components (9) are respectively slidably connected to the pushing component (7). The end of the pushing component (7) away from the connecting piece (8) is threadedly connected to a bone cutting component (10).

2. The elbow joint resection instrument according to claim 1, characterized in that: The sleeve (20) comprises a cylinder (201) fixedly mounted on the side wall of the outer shell of the motor (4), an inner chamber (202) is provided inside the cylinder (201), a plurality of clearance grooves (203) are provided on the peripheral wall of the cylinder (201) at one end away from the motor (4), and the plurality of clearance grooves (203) are connected to the inner chamber (202), two inner walls opposite to the clearance groove (203) are respectively provided with slide grooves (204), and the slide grooves (204) are upward from left to right, the collecting component (9) is embedded and slidably mounted in the inner chamber of the slide groove (204), a pair of limiting grooves (205) are provided on the inner wall of the inner chamber (202) at one end away from the motor (4), and the pushing component (7) is embedded and slidably mounted in the inner chamber of the limiting groove (205); The electric telescopic column (6) comprises a telescopic column body (61), and a first protrusion (62) is fixedly mounted on the outer wall of the output end of the telescopic column body (61); The connecting member (8) comprises a connecting block (81), a first groove (82) is provided on a side wall of the connecting block (81) close to the first protrusion (62), and the shape and size of the first protrusion (62) and the first groove (82) match.

3. The elbow joint resection instrument according to claim 2, characterized in that: The pushing assembly (7) comprises a sliding plate (71) and a pair of limiting sliders (72) fixedly mounted on the peripheral wall of the sliding plate (71); the limiting sliders (72) are embedded and slidably mounted in the inner cavity of the limiting groove (205); a rotating ring (76) is rotatably mounted on the side wall of the sliding plate (71) near the connecting block (81); a connecting shaft (74) is slidably mounted through the middle of the sliding plate (71); the connecting shaft (74) is arranged in the inner ring of the rotating ring (76); a connecting block (81) is fixedly mounted on one end of the connecting shaft (74) near the electric telescopic column (6); the connecting block (81) and the rotating ring (76) are elastically connected via a first spring (73). A plurality of limiting columns (75) are fixedly mounted on the edge of the side wall of the sliding plate (71) near the collecting component (9), and the plurality of limiting columns (75) are arranged in a circular array. The collecting component (9) and the limiting columns (75) are slidably connected. A second protrusion (77) is fixedly mounted on the side wall of one end of the connecting shaft (74) near the collecting component (9). A connecting tube (78) is rotatably mounted on the side wall of the sliding plate (71) near the collecting component (9). The connecting shaft (74) is arranged in the inner ring of the rotating ring (76), the first spring (73) and the connecting tube (78), and the bone cutting component (10) is threadedly connected to the connecting tube (78).

4. The elbow joint resection instrument according to claim 3, characterized in that: The bone cutting assembly (10) comprises a shell (101), a threaded ring (102) is fixedly mounted on a side wall of the shell (101) close to the connecting tube (78), the threaded ring (102) and the connecting tube (78) are threadedly connected, a baffle (103) is fixedly mounted on a side wall of the shell (101) at one end away from the connecting tube (78), a circular slide plate (104) is slidably arranged in the inner cavity of the shell (101), a plurality of square blocks (105) are fixedly mounted on the peripheral wall of the circular slide plate (104), and a plurality of first mounting seats (106) are fixedly mounted on the bottom surface of the circular slide plate (104), and the first mounting seats (106) are arranged in a circular array.

5. The elbow joint resection instrument according to claim 4, characterized in that: The housing (101) comprises a housing body (1011), a plurality of through grooves (1012) are provided on the peripheral wall of the housing body (1011), the plurality of through grooves (1012) are arranged in a circular array, two inner walls opposite to each other in the inner cavity of the through groove (1012) are respectively provided with inner grooves (1013), a blade (109) is slidably mounted in the inner groove (1013), and a blade (109) is fixedly mounted on the inner wall of the blade (109). A second mounting seat (107) is provided, the first mounting seat (106) and the second mounting seat (107) are rotatably connected via a connecting rod (108), a plurality of square grooves (1014) are provided on the side wall of the inner cavity of the shell body (1011), the square block (105) is embedded and slidably installed in the inner cavity of the square groove (1014), and the square block (105) and the inner wall of the square groove (1014) are elastically connected via a second spring (120).

6. The elbow joint resection instrument according to claim 4, characterized in that: The circular slide plate (104) comprises a circular slide plate body (1041). A second groove (1042) is provided on a side wall of the circular slide plate body (1041) close to the second protrusion (77). The size and shape of the second protrusion (77) and the second groove (1042) match each other.

7. The elbow joint resection instrument according to claim 5, characterized in that: The blade (109) comprises a blade body (1091), and stoppers (1092) are fixedly mounted on the outer walls on both sides of the blade body (1091), respectively, and the stoppers (1092) are embedded and slidably mounted in the inner cavity of the inner groove (1013).

8. The elbow joint resection instrument according to claim 3, characterized in that: The collecting assembly (9) comprises a slide bar (91), and installation chambers (92) are respectively provided on the walls on both sides of the slide bar (91), and guide grooves (93) are respectively provided on the inner walls at both ends of the inner cavity of the installation chamber (92), and a temporary storage box (94) is slidably provided in the inner cavity of the installation chamber (92), and the temporary storage box (94) is elastically connected to the side wall of the inner cavity of the installation chamber (92) via a third spring (99), and the side walls at both ends of the temporary storage box (94) are respectively fixedly provided A guide block (96) is embedded and slidably mounted in the inner cavity of the guide groove (93); a magnetic plate (95) is fixedly mounted on the outer wall of the temporary storage box (94); sliding columns (97) are fixedly mounted on the outer walls of both sides of the slide bar (91); the sliding columns (97) are embedded and slidably mounted in the inner cavity of the slide groove (204); a U-shaped sliding ring (98) is fixedly mounted on the inner wall of the slide bar (91); and the U-shaped sliding ring (98) is slidably mounted on the limit column (75).

9. The elbow joint resection instrument according to claim 8, characterized in that: The temporary storage box (94) comprises a box body (941), and a collection bucket (942) is respectively provided on the top surface and the bottom surface of the box body (941).

10. The elbow joint resection instrument according to claim 9, characterized in that: An inclined surface (943) is provided at one end of the box body (941) close to the sliding plate (71).

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