Annular bone taking device with variable taper

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a variable-taper annular bone taking device capable of performing blood glucose detection and blood glucose data real-time transmission in some embodiments of the invention, the device comprises a bone taking drill, two bone taking knives are symmetrically mounted at the lower end of the bone taking drill, a positioning needle is slidably connected in the bone taking drill, and the positioning needle is slidably connected with the lower end of the bone taking drill. A blood glucose detection assembly is arranged in the positioning needle, a signal enhancement module is integrated in the blood glucose detection assembly and comprises a pre-amplification circuit and a filter circuit, weak bio-electricity signals can be amplified, electromagnetic interference of an operating room can be effectively filtered out, the blood glucose detection assembly is further provided with a micro wireless transmission module, Bluetooth and medical special frequency band transmission is supported, and the blood glucose detection assembly is convenient to use. The blood glucose data can be transmitted to an operating room display screen, a doctor mobile terminal or a hospital information system in real time.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to a variable taper annular bone harvesting device. Background Technology

[0002] Existing bone windowing methods include drill bone removal, ultrasonic bone scalpel bone removal, and trephine bone removal. Drill bone removal and ultrasonic bone scalpel partial bone removal cannot retain the removed bone. Only ultrasonic bone scalpel complete bone removal or trephine bone removal can retain bone fragments. Bone windowing technology covers the opening with bone fragments to reduce the opening area, thereby preventing soft tissue from crawling into the bone cavity before bone tissue, hindering alveolar bone formation, and leading to poor bone healing. However, due to the thickness and angle of the cutting edge of ultrasonic bone scalpel or trephine, bone fragments are difficult to place in situ and are prone to slipping into the depth of the bone window, thus failing to prevent soft tissue from growing into the bone window.

[0003] In addition, existing bone fenestration devices do not have blood glucose detection capabilities, requiring doctors to use additional equipment to obtain patients' blood glucose data. This not only increases the operation time but may also increase patient pain and infection risks due to multiple punctures. Summary of the Invention

[0004] The purpose of this invention is to provide a variable taper annular bone harvesting device to solve some of the problems in the prior art. The specific technical solution is as follows:

[0005] The bone harvesting drill includes a bone harvesting blade and a detachable positioning pin. In use, when the positioning pin is subjected to a force from the bone harvesting site in a direction away from the bone harvesting site, it controls the blade of the bone harvesting blade to retract inward. The bone harvesting blade cuts out a truncated cone with a large diameter away from the bone harvesting site and a small diameter close to the bone harvesting site, or a cone with its tip facing the bone harvesting site.

[0006] Furthermore, the positioning pin controls the inward retraction of the bone-harvesting knife through a matching sleeve or spring.

[0007] Furthermore, the bone retrieval drill includes a bone retrieval drill housing, a connecting column fixed at the upper end of the bone retrieval drill housing, an inner cylinder frame inside the bone retrieval drill housing, an upper end of the positioning pin sliding inside the inner cylinder frame, a pull rod assembly slidably connected to the inner cylinder frame in the middle, and a spring three disposed between the middle of the pull rod assembly and the top of the bone retrieval drill housing.

[0008] Furthermore, the positioning pin includes a positioning post, which is slidably connected inside the inner cylinder frame. The upper end of the positioning post abuts against the middle of the pull rod assembly. The positioning post is threadedly connected to the upper end of the connecting tube, and the lower end of the connecting tube is fixed with a positioning pin head.

[0009] Furthermore, the bone harvesting knife includes a bone harvesting knife body, a supporting inclined plate fixed to the upper end of the bone harvesting knife body, the supporting inclined plate being elastically connected to the supporting horizontal plate, a stud fixed to the upper end of the supporting horizontal plate, the stud being connected to the bone harvesting drill housing through a side ear assembly, a fixing ring fixed to the supporting inclined plate, and the fixing ring being connected to the end hook of the pull rod assembly.

[0010] Furthermore, the pull rod assembly includes a top plate, which is slidably connected to the inner cylinder frame. The upper end of the positioning post abuts against the top plate. Spring three is set between the top plate and the top of the bone retrieval drill housing. A limit post is fixed at the upper end of the top plate. The limit post is slidably connected in a limit groove set in the connecting post. Pull rod one is rotatably connected to both ends of the top plate. Pull rod one is slidably connected to pull rod two. Spring two is provided between pull rod one and pull rod two. Pull rod two is rotatably connected to a hook. The hook is connected to a fixing ring hook.

[0011] Furthermore, the ear assembly includes an ear frame, which is fixed to the outside of the bone burr housing. A cover is fixed to the upper end of the ear frame. A movable plate is slidably connected between the ear frame and the cover. Two connecting frames are fixed to the movable plate. Both connecting frames are slidably connected to the clamping plate. A spring is provided between the movable plate and the clamping plate. The upper end of the stud passes through the movable plate, the spring, and the clamping plate and is threadedly connected to the locking nut. A lower toothed rack is provided at the upper end of the ear frame, and an upper toothed rack is provided at the lower end of the clamping plate.

[0012] Furthermore, the connecting frame is provided with an arrow groove, the front end of which points to the scale line on the cover frame, and the lower end of the ear frame is provided with two protruding edges, which respectively abut against the two sides of the support cross plate.

[0013] Furthermore, the inner cylinder frame is rotatably connected to the adjustment assembly, which includes a gear. The gear is rotatably connected to the outside of the inner cylinder frame. The gear is fixedly connected to one end of the rotating rod, and the other end of the rotating rod is fixedly connected to the slider. The rotating rod slides in the groove provided on the bone retrieval drill housing, and the slider slides on the outside of the bone retrieval drill housing. The two ends of the gear are respectively engaged with two racks, and the two racks are respectively slidably connected to two supports. Both supports are fixed inside the bone retrieval drill housing, and the two supports are respectively fixedly connected to two moving plates.

[0014] Furthermore, the blood glucose detection component includes a blood glucose detector, which is slidably installed in the connecting tube. The upper end of the blood glucose detector is rotatably connected to the lower plate. A spring is provided between the lower plate and the upper plate. The upper plate rests against the positioning post. A test strip is inserted into the lower end of the blood glucose detector. The lower end of the test strip, which is arranged on a disc, rests against the positioning needle. Multiple capillaries are provided through the positioning needle.

[0015] Furthermore, an observation window is provided on the side of the connecting tube, and the display panel of the blood glucose detector is located at the observation window.

[0016] The advantages of this invention are:

[0017] When this device performs bone harvesting, the upper end of the bone harvesting drill is fixedly installed on the surgical micro-power system, which drives the entire system to rotate. Two bone harvesting blades, symmetrically installed at the lower end of the bone harvesting drill, cut into the bone during rotation. As the bone harvesting depth increases, the front end of the positioning pin contacts the bone surface and remains relatively stationary, while the bone harvesting drill continues to move downward, causing the positioning pin to slide upward relative to the bone harvesting drill. This, in turn, pushes the middle part of the pull rod assembly upward, compressing the spring. During this process, the two ends of the pull rod assembly pull the lower ends of the two bone harvesting blades towards the center, reducing the distance between the lower ends of the two bone harvesting blades and forming an inward-facing state. This cuts out a conical bone block that is larger at the top and smaller at the bottom. This adaptive taper adjustment mechanism ensures that the bone block has a regular shape, and the conical design allows the bone block to remain stably in place before removal, effectively preventing the bone block from accidentally falling into the deep part of the bone window, significantly improving the safety and efficiency of the operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 ;

[0021] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 4 ;

[0023] Figure 6 for Figure 5 Enlarged view of a section at point B in the middle;

[0024] Figure 7 This is a schematic diagram of the overall structure of the present invention. Figure 5 ;

[0025] Figure 8 for Figure 7 Enlarged view of a section at point C;

[0026] Figure 9 This is a schematic diagram of the bone harvesting scalpel structure of the present invention;

[0027] Figure 10 This is a schematic diagram of the adjustment component structure of the present invention;

[0028] Figure 11 This is a schematic diagram of the tie rod assembly structure of the present invention;

[0029] Figure 12This is a schematic diagram illustrating the working principle of the present invention;

[0030] Explanation of markings in the diagram:

[0031] 1. Connecting post; 2. Bone burr housing; 3. Inner cylinder frame; 4. Positioning post; 5. Connecting tube; 6. Positioning needle; 7. Upper plate; 8. Spring 1; 9. Lower plate; 10. Blood glucose detector; 11. Test strip; 12. Capillary tube; 13. Observation window; 14. Supporting horizontal plate; 15. Supporting inclined plate; 16. Bone burr body; 17. Fixing ring; 18. Stud; 19. Locking nut; 20. Clamping plate; 21. Connecting frame; 22. Moving plate; 23. Arrow groove; 24. Ear bracket; 25. Cover bracket; 26. Lower rack; 27. Upper rack; 28. Scale line; 29. ​​Rack 3; 20. Support 30; Gear 31; Rotating rod 32; Slider 33; Slide groove 34; Top plate 35; Limiting post 36; Limiting groove 37; Pull rod one 38; Pull rod two 39; Spring two 40; Hook 41; Spring three 42; Protruding edge 43; Spring four 44; Bone retrieval drill 100; Bone retrieval knife 101; Blade of bone retrieval knife 1011; Positioning pin 102; Direction away from the bone retrieval site 103; Direction close to the bone retrieval site 104; Bone retrieval site 200; Retrieved truncated cone 201; Retrieved cone 202. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] A variable-tapered annular bone harvesting device, such as Figure 12 As shown, it includes a bone-harvesting drill 100;

[0035] The bone harvesting drill 100 includes a bone harvesting blade 101 and a detachable positioning pin 102. In use, the bone harvesting drill 100 approaches the bone harvesting site 200 along a direction 104 close to the bone harvesting site. After the positioning pin 102 is subjected to a force provided by the bone harvesting site 200 in a direction away from the bone harvesting site 103, it controls the blade 1011 of the bone harvesting blade to retract inward. The bone harvesting blade 101 cuts out a truncated cone 201 with a large diameter away from the bone harvesting site and a small diameter close to the bone harvesting site, or a cone 202 with its tip facing the bone harvesting site.

[0036] In some embodiments, the positioning pin 102 controls the inward retraction of the bone-removing knife 101 via a cooperating sleeve or spring.

[0037] Example 1: As Figures 1-11 As shown, a variable taper annular bone harvesting device includes a bone harvesting drill 100, a positioning pin 102 slidably connected inside the bone harvesting drill 100, two bone harvesting knives 101 symmetrically installed at the lower end of the bone harvesting drill 100, the two bone harvesting knives 101 being connected to both ends of a pull rod assembly, the middle part of the pull rod assembly sliding inside the bone harvesting drill 100, a spring 42 being provided between the middle part of the pull rod assembly and the top of the bone harvesting drill 100, and the upper end of the positioning pin 102 abutting against the middle part of the pull rod assembly;

[0038] The positioning pin 102 controls the retraction of the lower ends of the two bone-harvesting blades 101 through two pull rod assemblies, and the two bone-harvesting blades 101 rotate to cut out conical bone blocks;

[0039] The working principle of the above technical solution is as follows: When the device performs bone harvesting, the upper end of the bone harvesting drill 100 is fixedly installed on the surgical micro-power system, which drives the whole to rotate. The two bone harvesting blades 101, which are symmetrically installed at the lower end of the bone harvesting drill 100, cut into the bone during the rotation. As the bone harvesting depth increases, the front end of the positioning pin 102 contacts the bone surface and remains relatively stationary, while the bone harvesting drill 100 continues to move downward, causing the positioning pin 102 to slide upward relative to the bone harvesting drill 100. This pushes the middle part of the pull rod assembly to move upward, compressing the spring 3 42. During this process, the two ends of the pull rod assembly pull the lower ends of the two bone harvesting blades 101 towards the center, reducing the distance between the lower ends of the two bone harvesting blades 101 and forming an inward state. This cuts out a conical bone block that is larger at the top and smaller at the bottom. This adaptive taper adjustment mechanism ensures that the shape of the bone block is regular, and the conical design allows the bone block to remain stably in place before being removed, effectively preventing the bone block from accidentally falling into the deep part of the bone window, which significantly improves the safety and efficiency of the operation.

[0040] Example 2: Figures 1-11As shown, the bone retrieval drill 100 includes a bone retrieval drill housing 2, a connecting column 1 fixed at the upper end of the bone retrieval drill housing 2, an inner cylinder frame 3 provided inside the bone retrieval drill housing 2, the upper end of the positioning pin 102 sliding inside the inner cylinder frame 3, the middle part of the pull rod assembly slidingly connected to the inner cylinder frame 3, and the spring 3 42 disposed between the middle part of the pull rod assembly and the top of the bone retrieval drill housing 2.

[0041] The working principle of the above technical solution is as follows: The connecting column 1 at the upper end of the bone retrieval drill housing 2 is installed on the micro-power system. The micro-power system controls the rotation of the connecting column 1 and the bone retrieval drill housing 2, which drives the two bone retrieval blades 101 at the lower end of the bone retrieval drill housing 2 to rotate. During the bone retrieval process, the bone retrieval blades 101 move downward continuously, and the positioning pin 102 abuts against the bone block, which drives the positioning pin 102 to slide in the inner cylinder frame 3. This causes the middle part of the pull rod assembly to slide in the inner cylinder frame 3, which causes the spring 3 42 to be compressed. The two ends of the pull rod assembly pull the lower ends of the two bone retrieval blades 101 to tighten, thereby cutting out bone blocks of a qualified shape.

[0042] Example 3: Figures 1-11 As shown, the positioning pin 102 includes a positioning post 4, which is slidably connected in the inner cylinder frame 3. The upper end of the positioning post 4 abuts against the middle of the pull rod assembly. The positioning post 4 is threadedly connected to the upper end of the connecting tube 5. The lower end of the connecting tube 5 is fixed with a positioning pin head 6. A blood glucose detection assembly is installed inside the connecting tube 5.

[0043] The working principle of the above technical solution is as follows: The connecting column 1 at the upper end of the bone retrieval drill housing 2 is installed on the micro-power system. The micro-power system controls the rotation of the connecting column 1 and the bone retrieval drill housing 2, which drives the two bone retrieval blades 101 at the lower end of the bone retrieval drill housing 2 to rotate. During the bone retrieval process, the bone retrieval blades 101 continuously move downwards, and the positioning needle 6 abuts against the bone block, which plays a role in precise positioning and fixation. This causes the positioning column 4 to slide upwards in the inner cylinder frame 3, which in turn causes the middle part of the pull rod assembly to slide in the inner cylinder frame 3, which causes the spring 3 42 to be compressed. The two ends of the pull rod assembly pull the lower ends of the two bone retrieval blades 101 to tighten, thereby cutting out bone blocks of a qualified shape. The blood glucose detection component is set inside the connecting tube 5, which can trigger the blood glucose detection process. This integrated design integrates the functions of positioning, bone retrieval and physiological parameter monitoring, simplifying the surgical procedure.

[0044] Example 4: Figures 1-11 As shown, the bone scalpel 101 includes a bone scalpel body 16, a supporting inclined plate 15 is fixed to the upper end of the bone scalpel body 16, the supporting inclined plate 15 is elastically connected to the supporting horizontal plate 14, a stud 18 is fixed to the upper end of the supporting horizontal plate 14, the stud 18 is connected to the bone scalpel housing 2 through the side ear assembly, a fixing ring 17 is fixed on the supporting inclined plate 15, and the fixing ring 17 is connected to the end hook of the pull rod assembly;

[0045] The pull rod assembly includes a top plate 35, which is slidably connected to the inner cylinder frame 3. The upper end of the positioning post 4 abuts against the top plate 35. Spring 32 is set between the top plate 35 and the top of the bone retrieval drill housing 2. A limit post 36 is fixed at the upper end of the top plate 35. The limit post 36 is slidably connected in the limit groove 37 set in the connecting post 1. Pull rod 1 38 is rotatably connected to both ends of the top plate 35. Pull rod 1 38 is slidably connected to pull rod 2 39. Spring 2 40 is provided between pull rod 1 38 and pull rod 2 39. Pull rod 2 39 is rotatably connected to hook 41. Hook 41 is hooked to the fixing ring 17.

[0046] The working principle of the above technical solution is as follows: The main body 16 of the bone scalpel is precision machined from medical-grade stainless steel. The front edge is designed with a spiral cutting surface, which can efficiently cut bone tissue. The support inclined plate 15 and the support transverse plate 14 adopt an elastic hinge structure, which allows the main body 16 of the bone scalpel to have controllable radial movement. When the top plate 35 moves upward under the push of the positioning pin 102, the axial displacement is converted into radial force through the linkage mechanism of the first pull rod 38 and the second pull rod 39, which pulls the hook 41 to move towards the center. Then, through the fixing ring 17, the support inclined plate 15 is deformed, so that the bone scalpel... The lower end of the main body 16 tapers inward to cut out a bone block of a suitable shape. Spring 40 provides a buffer between pull rod 38 and pull rod 39 to ensure that the bone scalpel body 16 has the ability to adapt when encountering changes in bone hardness, thus avoiding damage to the instrument. The cooperation between the limiting post 36 and the limiting groove 37 prevents the rotation of the top plate 35, ensuring the accuracy and stability of force transmission. This precise mechanical linkage realizes the dynamic adjustment of the bone taper, which can be adaptively adjusted according to different bone conditions to ensure that the obtained bone block has a regular shape and smooth edges, which is beneficial to subsequent bone grafting operations.

[0047] Example 5: Figures 1-11 As shown, the side ear assembly includes an ear frame 24, which is fixed to the outside of the bone burr housing 2. A cover frame 25 is fixed to the upper end of the ear frame 24. A movable plate 22 is slidably connected between the ear frame 24 and the cover frame 25. Two connecting frames 21 are fixed on the movable plate 22. Both connecting frames 21 are slidably connected to the clamping plate 20. A spring 44 is provided between the movable plate 22 and the clamping plate 20. The upper end of the stud 18 passes through the movable plate 22, the spring 44, and the clamping plate 20, and is threadedly connected to the locking nut 19. A lower rack 26 is provided at the upper end of the ear frame 24, and an upper rack 27 is provided at the lower end of the clamping plate 20.

[0048] The working principle of the above technical solution is as follows: The ear bracket 24 is fixed to the outside of the bone reaming drill housing 2 to form a stable support. When installing the bone reaming knife, first connect the fixing ring 17 with the hook 41, then pass the stud 18 on the support plate 14 through the moving plate 22, the spring 44 and the locking plate 20 in sequence, and finally tighten it with the locking nut 19. At this time, there is a certain gap between the locking plate 20 and the moving plate 22, and the upper rack 27 and the lower rack 26 are in a separated state, allowing the moving plate 22 to slide vertically between the ear bracket 24 and the cover frame 25, which is convenient for adjusting the initial position of the bone reaming knife 16 body. After the position is properly adjusted, tighten the locking nut 19 so that the locking plate 20 presses the spring 44 downward, and at the same time the upper rack 27 and the lower rack 26 are tightly engaged to form a mechanical self-locking. This design not only ensures the convenience of bone reaming knife installation, but also ensures the stability during the working process. At the same time, it is convenient for disassembly, cleaning and disinfection after surgery, extends the service life of the instrument and reduces the maintenance cost of hospital equipment.

[0049] Example 6: Figures 1-11 As shown, the connecting frame 21 is provided with an arrow groove 23, the front end of which points to the scale line 28 provided on the cover frame 25. The lower end of the ear frame 24 is provided with two protruding edges 43, which respectively abut against the two sides of the supporting cross plate 14.

[0050] The inner cylinder frame 3 is rotatably connected to the adjustment assembly, which includes a gear 31. The gear 31 is rotatably connected to the outside of the inner cylinder frame 3. One end of the gear 31 is fixedly connected to the rotating rod 32, and the other end of the rotating rod 32 is fixedly connected to the slider 33. The rotating rod 32 slides in the groove 34 provided on the bone retrieval drill housing 2, and the slider 33 slides on the outside of the bone retrieval drill housing 2. Both ends of the gear 31 are respectively engaged with two racks 29 for transmission. The two racks 29 are respectively slidably connected to two supports 30. Both supports 30 are fixed inside the bone retrieval drill housing 2, and both supports 30 are respectively fixedly connected to two moving plates 22.

[0051] The working principle of the above technical solution is as follows: the two convex edges 43 form a horizontal constraint on the supporting transverse plate 14 to prevent lateral displacement during bone harvesting and ensure the accuracy of bone harvesting.

[0052] The adjusting assembly, through the meshing of gear 31 and two racks 29, converts the rotational motion of slider 33 into the synchronous, opposite-facing or opposite-facing motion of two moving plates 22. When the bone harvesting diameter needs to be adjusted, the doctor loosens the locking nut 19, separating the upper rack 27 from the lower rack 26, and then moves slider 33, causing the rotating rod 32 to rotate within the slide groove 34, which in turn drives gear 31 to rotate. Gear 31 simultaneously drives the racks 29 on both sides to move in the same or opposite directions. Because racks 29 are slidably connected to support 30, and support... The frame 30 is fixed to the movable plate 22, so the movable plate 22 drives the entire bone harvesting knife to adjust its position synchronously. The cooperation between the arrow groove 23 and the scale line 28 provides an intuitive adjustment reference, allowing the doctor to accurately set the bone harvesting diameter. After adjustment, the locking nut 19 is tightened again, so that the upper rack 27 and the lower rack 26 engage and lock the position. This adjustment mechanism realizes stepless adjustment of the bone harvesting diameter, has a wide range of applications, can meet the precise requirements of bone block size for different surgical sites, and significantly improves the surgical effect and the quality of patient recovery.

[0053] Example 7: Figures 1-11 As shown, the blood glucose detection component includes a blood glucose detector 10, which is slidably installed in the connecting tube 5. The upper end of the blood glucose detector 10 is rotatably connected to the lower plate 9. A spring 8 is provided between the lower plate 9 and the upper plate 7. The upper plate 7 abuts against the positioning post 4. A test strip 11 is inserted into the lower end of the blood glucose detector 10. The lower end of the test strip 11, which is arranged on a disc, abuts against the positioning needle 6. Multiple capillaries 12 are provided through the positioning needle 6.

[0054] The connecting pipe 5 has an observation window 13 on its side, and the display panel of the blood glucose detector 10 is located at the observation window 13.

[0055] The working principle of the above technical solution is as follows: When the positioning needle 6 contacts the bone surface and is inserted under pressure, the bone marrow fluid rises to the test strip 11 through the capillary tube 12 via the capillary principle. The blood glucose detector 10 applies constant pressure through the spring-8 between the lower plate 9 and the upper plate 7 to ensure that the test strip 11 is in full contact with the bone marrow fluid and improve the detection accuracy.

[0056] The disc-shaped test strip 11 increases the contact area with bone marrow fluid, accelerates the reaction process, and shortens the detection time;

[0057] The test results are displayed intuitively through observation window 13. Doctors can obtain patients’ blood glucose data without additional equipment. This design enables real-time physiological monitoring during surgery and has significant clinical value for the safety of orthopedic surgery for diabetic patients.

[0058] In addition, the components adopt a modular design, with the threaded connection between the connecting tube 5 and the positioning column 4, and the overall detachability of the blood glucose detection components, which facilitates the replacement of test strips 11, cleaning of positioning needles 6 and disinfection after the operation, so as to achieve one person, one use and avoid cross-infection.

[0059] The replaceability of components also allows for the installation of common positioning needles when there is no need for blood glucose monitoring, improving the versatility and economy of the device. This design concept that integrates diagnostic functions with therapeutic devices represents the development direction of precision medicine and intelligent surgical instruments, and has significant technological foresight and clinical application value.

[0060] The blood glucose detection module integrates a signal enhancement module, including a preamplifier circuit and a filter circuit, which can amplify weak bioelectric signals and effectively filter out electromagnetic interference in the operating room. The blood glucose detection module is also equipped with a miniature wireless transmission module that supports Bluetooth and medical-specific frequency band transmission, which can transmit blood glucose data in real time to the operating room display screen, doctor's mobile terminal or hospital information system.

[0061] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A variable taper annular bone harvesting device, characterized in that, Includes bone harvesting drill (100); The bone harvesting drill (100) includes a bone harvesting blade (101) and a detachable positioning pin (102). In use, when the positioning pin (102) is subjected to a force provided by the bone harvesting site (200) in a direction away from the bone harvesting site (103), it controls the blade (1011) of the bone harvesting blade to retract inward. The bone harvesting blade (101) cuts out a truncated cone (201) with a large diameter away from the bone harvesting site and a small diameter close to the bone harvesting site, or a cone (202) with its tip facing the bone harvesting site.

2. The variable taper annular bone harvesting device according to claim 1, characterized in that, The positioning pin (102) controls the inward retraction of the bone-removing knife (101) through a matching sleeve or spring.

3. A variable taper annular bone harvesting device according to claim 1 or 2, characterized in that, The bone-removing drill (100) includes a bone-removing drill housing (2), a connecting column (1) is fixed at the upper end of the bone-removing drill housing (2), an inner cylinder frame (3) is provided inside the bone-removing drill housing (2), the upper end of the positioning pin (102) slides inside the inner cylinder frame (3), the middle part of the pull rod assembly is slidably connected to the inner cylinder frame (3), and the spring three (42) is set between the middle part of the pull rod assembly and the top of the bone-removing drill housing (2).

4. The variable taper annular bone harvesting device according to claim 3, characterized in that, The positioning pin (102) includes a positioning post (4), which is slidably connected inside the inner cylinder frame (3). The upper end of the positioning post (4) abuts against the middle of the pull rod assembly. The positioning post (4) is threadedly connected to the upper end of the connecting tube (5), and the lower end of the connecting tube (5) is fixed with a positioning pin head (6).

5. The variable taper annular bone harvesting device according to claim 4, characterized in that, The bone-removing scalpel (101) includes a bone-removing scalpel body (16), a supporting inclined plate (15) is fixed at the upper end of the bone-removing scalpel body (16), the supporting inclined plate (15) is elastically connected to the supporting horizontal plate (14), a stud (18) is fixed at the upper end of the supporting horizontal plate (14), the stud (18) is connected to the bone-removing drill housing (2) through the side ear assembly, a fixing ring (17) is fixed on the supporting inclined plate (15), and the fixing ring (17) is connected to the end hook of the pull rod assembly.

6. A variable taper annular bone harvesting device according to claim 5, characterized in that, The pull rod assembly includes a top plate (35), which is slidably connected to the inner cylinder frame (3). The upper end of the positioning column (4) rests on the top plate (35). Spring three (42) is set between the top plate (35) and the top of the bone retrieval drill housing (2). A limit column (36) is fixed at the upper end of the top plate (35). The limit column (36) is slidably connected in the limit groove (37) set in the connecting column (1). Pull rod one (38) is rotatably connected to both ends of the top plate (35). Pull rod one (38) is slidably connected to pull rod two (39). Spring two (40) is provided between pull rod one (38) and pull rod two (39). Pull rod two (39) is rotatably connected to hook (41). Hook (41) is hooked to the fixing ring (17).

7. A variable taper annular bone harvesting device according to claim 6, characterized in that, The ear assembly includes an ear frame (24), which is fixed to the outside of the bone burr housing (2). A cover frame (25) is fixed to the upper end of the ear frame (24). A movable plate (22) is slidably connected between the ear frame (24) and the cover frame (25). Two connecting frames (21) are fixed on the movable plate (22). Both connecting frames (21) are slidably connected to the clamping plate (20). A spring four (44) is provided between the movable plate (22) and the clamping plate (20). The upper end of the stud (18) passes through the movable plate (22), the spring four (44) and the clamping plate (20) and is threadedly connected to the locking nut (19). A lower toothed rack (26) is provided at the upper end of the ear frame (24), and an upper toothed rack (27) is provided at the lower end of the clamping plate (20).

8. A variable taper annular bone harvesting device according to claim 7, characterized in that, The connecting frame (21) is provided with an arrow groove (23), the front end of which points to the scale line (28) on the cover frame (25). The lower end of the ear frame (24) is provided with two protrusions (43), which abut against the two sides of the support plate (14).

9. A variable taper annular bone harvesting device according to claim 8, characterized in that, The inner cylinder frame (3) is rotatably connected to the adjustment assembly, which includes a gear (31). The gear (31) is rotatably connected to the outside of the inner cylinder frame (3). The gear (31) is fixedly connected to one end of the rotating rod (32), and the other end of the rotating rod (32) is fixedly connected to the slider (33). The rotating rod (32) slides in the groove (34) provided on the bone retrieval drill housing (2). The slider (33) slides on the outside of the bone retrieval drill housing (2). The two ends of the gear (31) are respectively meshed with two racks (29). The two racks (29) are respectively slidably connected to two supports (30). The two supports (30) are fixed inside the bone retrieval drill housing (2). The two supports (30) are respectively fixedly connected to two moving plates (22).

10. A variable taper annular bone harvesting device according to claim 9, characterized in that, The connecting tube (5) is equipped with a blood glucose detection component, which includes a blood glucose detector (10). The blood glucose detector (10) is slidably installed in the connecting tube (5). The upper end of the blood glucose detector (10) is rotatably connected to the lower plate (9). A spring (8) is provided between the lower plate (9) and the upper plate (7). The upper plate (7) rests against the positioning post (4). A test strip (11) is inserted into the lower end of the blood glucose detector (10). The lower end of the test strip (11) set on the disc rests against the positioning needle (6). Multiple capillaries (12) are provided through the positioning needle (6).

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