Surgical instrument auxiliary registration device based on augmented reality navigation technology

Abstract

The invention provides a surgical instrument auxiliary registration device based on an augmented reality navigation technology, and belongs to the technical field of surgical instrument positioning. Comprising a small calibration device body, a mounting hole is formed in one side of the small calibration device body, and a tubular surgical instrument body is arranged on one side of the small calibration device body; and the mounting mechanism is used for connecting the small calibration device body with the tubular surgical instrument body. By arranging the mounting mechanism, the small calibration device body and the tubular surgical instrument body can be quickly and fixedly connected together in the surgical operation process of medical staff, the operation is convenient and quick, meanwhile, the small calibration device body and the tubular surgical instrument body are also very convenient to detach, and the operation efficiency is improved. By means of the structural design, the working efficiency of medical staff is effectively improved, and the device can be adjusted to adapt to tubular surgical instrument bodies with different inner diameters through the adjusting mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical instrument positioning, and in particular to a surgical instrument auxiliary registration device based on augmented reality navigation technology. Background Art

[0002] During the navigation surgery, the doctor operates to fix the relative position between the surgical instrument and the calibration device. This step is usually called the registration of the surgical instrument. The registration device achieves high-precision registration of the surgical instrument, which can ensure the accuracy and safety of the surgical navigation system in navigating the surgical instrument.

[0003] However, the existing calibration devices and surgical instruments are generally fixed together by gluing or screwing, and cannot be installed or disassembled. Therefore, under normal circumstances, a calibration device can only be used in conjunction with a specific surgical instrument, and the angle direction between the existing calibration device and the surgical instrument is unique after the two are fixed. However, in different surgical operations, medical staff need to perform surgical operations at different operating angles. Since the angle between the calibration device and the surgical instrument is not adjustable, the medical staff cannot adjust the direction during the operation, which makes it difficult to use, thereby affecting the work efficiency of the medical staff. At the same time, when the operating angle is not good, the calibration device will be blocked, thereby affecting the accuracy of the calibration device positioning, thereby affecting the positioning of the surgical instrument accordingly. Therefore, the present application provides a surgical instrument auxiliary registration device based on augmented reality navigation technology to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a surgical equipment auxiliary registration device based on augmented reality navigation technology. By setting up an installation mechanism, the small calibration device body and the tubular surgical instrument body can be quickly fixed and connected together during the surgical operation of medical staff, and the operation is convenient and quick. At the same time, it is also convenient to separate the small calibration device body and the tubular surgical instrument body. The structural design effectively improves the work efficiency of medical staff. The above setting can solve the problem of inconvenient connection and adjustment between the calibration device and the surgical instrument.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A surgical instrument auxiliary registration device based on augmented reality navigation technology comprises a small calibration device body, a mounting hole is provided on one side of the small calibration device body, a tubular surgical instrument body is provided on one side of the small calibration device body; a mounting mechanism, the mounting mechanism is used to connect the small calibration device body and the tubular surgical instrument body, the mounting mechanism is connected to the small calibration device body; an adjustment mechanism, the adjustment mechanism is used to adjust the tightness and angle of the tubular surgical instrument body, the adjustment mechanism is connected to the tubular surgical instrument body.

[0007] Optionally, the installation mechanism includes a connecting tube installed on the small calibration device body, the connecting tube is fixedly connected to an outer shell on the side away from the small calibration device body, an inner tube is installed in the connecting tube, a second limiting portion is provided on the side of the inner tube close to the small calibration device body, and a first limiting portion is provided on the side of the connecting tube close to the small calibration device body.

[0008] Optionally, a first lightweight groove is equidistantly provided in an annular manner on one side of the connecting pipe close to the body of the small calibration device, and a first convex portion is provided on one side of the connecting pipe away from the first limiting portion.

[0009] Optionally, first through holes are formed on both sides of the first protrusion, and a second through hole is formed on the connecting tube.

[0010] Optionally, a second convex portion is provided on a side of the inner tube away from the second limiting portion, second lightweight grooves are equidistantly provided in an annular shape on the inner tube, and a guide portion is provided on a side of the inner tube away from the second limiting portion.

[0011] Optionally, the adjustment mechanism includes an inner shell installed on the tubular surgical instrument body, the outer wall of the connecting tube is sleeved with a threaded block, the outer wall of the threaded block is sleeved with a sleeve block, the sleeve block is fixedly connected to a connecting strip on the side away from the small calibration device body, the connecting strip is fixedly connected to a connecting plate on the side away from the sleeve block, a threaded hole is opened on one side of the inner shell, a threaded rod matching the shape of the threaded hole is installed on the side of the inner shell away from the connecting plate, and the threaded rod is fixedly connected to a rotating block on the side away from the inner shell.

[0012] Optionally, the connecting piece and the inner shell are integrally formed.

[0013] Optionally, the shell and the connecting pipe are integrally formed, the shell and the connecting pipe are made of plastic material, and third lightweight grooves are equidistantly provided in an annular shape on the top of the shell.

[0014] Optionally, the inner wall of the sleeve block is provided with an internal thread, the outer wall of the sleeve block is provided with an anti-slip pattern with a depth of two millimeters, and the inner shell is provided with a through-slot hole matched with the shape of the connecting piece.

[0015] Optionally, a limiting plate is annularly fixedly connected to the outer wall of the inner shell, an end plate is provided at the opening of the inner shell, a guide plate is fixedly connected to the bottom of the inner shell, and reinforcement parts are provided on both sides of the inner wall of the inner shell.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up the installation mechanism, not only can the small calibration device body and the tubular surgical instrument body be quickly fixed together by using the installation mechanism during the medical staff's surgical operation, but the operation is also convenient and quick. At the same time, it is also convenient to separate the small calibration device body and the tubular surgical instrument body. The structural design effectively improves the work efficiency of medical staff. In addition, the device can be adjusted to adapt to tubular surgical instrument bodies with different inner diameters by using the adjustment mechanism, and the adjustment is convenient and quick. At the same time, the angle of the tubular surgical instrument body can be flexibly adjusted through adjustment, which further makes the operation of medical staff more convenient. See the detailed description below for details. The application range of the device is relatively wide, and the practicability of the device is good.

[0018] By providing a first limiting portion and a second limiting portion in the mounting mechanism, not only can the first limiting portion on the connecting tube be first pressed against one side of the mounting hole on the small calibration device body, and then the inner tube can be inserted into the connecting tube after passing through the mounting hole, during which the wider side of the inner tube is first squeezed and deformed, when the wider side of the inner tube slides to the wider side of the connecting tube, the elastic force generated by the rebound of the inner tube makes the connecting tube and the inner tube tightly connected together until the second limiting portion abuts against the other side of the mounting hole on the small calibration device body, so that the second limiting portion and the first limiting portion are in a clamping posture to fix the small calibration device body, so that the mounting structure can cooperate with the use of other components in the device to quickly and stably install and connect the small calibration device body and the tubular surgical instrument body together, and the structure is simple, and the use of the structure further makes the use effect of the mounting mechanism better.

[0019] By arranging the threaded block and the sleeve block in the adjusting mechanism, not only can the sleeve block drive the threaded block to slide on the connecting tube when the connecting piece pulls the connecting strip, but during the sliding period, when the threaded block slides to the specified maximum range, the threaded block stops sliding, and after one side end of the tubular surgical instrument body is completely inserted into the inner shell, the sleeve block on the threaded block is rotated to move the sleeve block toward the main body of the small calibration device. During this period, the sleeve block pulls the connecting strip to surround the connecting tube to produce tensile deformation, thereby tightening the inner shell connected to the other side of the connecting piece. At the same time, the threaded block further squeezes the connecting tube due to the influence of the interaction force, and the sleeve block is stopped after the inner shell is tightened to tightly fix the tubular surgical instrument body. The inner shell can be tightened to different inner diameters by adjusting the positions of the threaded block and the sleeve block. The structure enables the device to be suitable for tubular surgical instrument bodies with different inner diameters, thereby increasing the scope of use of the device, and the structure is simple. The use of the structure further makes the use effect of the adjusting mechanism better.

[0020] By providing a second protrusion and a guide portion in the installation mechanism, not only can the setting of the guide portion make it easier to insert the inner tube into the connecting tube, thereby facilitating the connection between the connecting tube and the inner tube, but the second protrusion provided on the inner tube generates pressure against an inner wall of one side of the connecting tube during the installation and connection process of the connecting tube and the inner tube, thereby making the connection between the connecting tube and the inner tube tighter, thereby making the connection between the small calibration device body and the tubular surgical instrument body more stable, and the structure is simple, which further improves the use effect of the installation mechanism.

[0021] By providing a guide plate and a reinforcement part in the adjustment mechanism, not only can the guide plate be used to assist the insertion of the tubular surgical instrument body and play a good guiding role, but the reinforcement part provided on the inner shell can cause a certain degree of deformation when the side of the inner shell close to the reinforcement part is subjected to pressure, thereby making the angle of the tubular surgical instrument body more adjustable. In addition, the structure is simple, and the structure further makes the use effect of the adjustment mechanism better.

[0022] By providing a connecting tube and a threaded rod, after the tubular surgical instrument body is installed, the tubular surgical instrument body, the connecting tube and the threaded rod form a T-shaped structure. The T-shaped structure is formed when medical staff use two fingers to hook the connecting tube and the threaded rod during the surgical operation, and then use other fingers to assist in limiting the small calibration device body, the tubular surgical instrument body and related structures for connection, so that the device can be stably placed in the hand for use, and the coordinated use of the structures further makes the surgical operation more convenient for medical staff.

[0023] To sum up, the device can realize the quick connection and disassembly of the small calibration device body and the tubular surgical instrument body through the installation mechanism and the adjustment mechanism, as well as the coordinated use of the various components therein, and the device can be suitable for use with tubular surgical instrument bodies of different inner diameters within a certain range through adjustment, and the angle between the tubular surgical instrument body and the small calibration device body can also be adjusted through adjustment. The coordinated use of the structures facilitates the surgical operation of medical staff, and the device has a simple structure and low production cost. At the same time, the device can avoid the problem that the calibration device is easily blocked in different scenes, affecting the shooting or recognition of the binocular camera, and the device has good practicality, while effectively improving the work efficiency of surgical operations, and the production cost of the device is low, which is convenient for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of a surgical equipment auxiliary registration device based on augmented reality navigation technology;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a surgical equipment auxiliary registration device based on augmented reality navigation technology;

[0027] Figure 3 A schematic diagram of the three-dimensional structure of the outer shell and the inner shell;

[0028] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0029] Figure 5 for Figure 1 The enlarged structural diagram at B in the middle;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the outer shell and the inner shell;

[0031] Figure 7 for Figure 6 The enlarged structural diagram at C in the middle;

[0032] Figure 8 It is a schematic diagram of the cross-sectional structure of the outer shell and the inner shell;

[0033] Fig. 9 for Figure 8 Enlarged structural diagram at point D in the middle.

[0034] [Reference Signs]

[0035] 1. Small calibration device body; 2. Tubular surgical instrument body; 3. Outer shell; 4. Connecting tube; 5. First lightweight groove; 6. First limiting part; 7. First convex part; 8. First through hole; 9. Second through hole; 10. Inner tube; 11. Second limiting part; 12. Second convex part; 13. Second lightweight groove; 14. Guide part; 15. Threaded block; 16. Sleeve block; 17. Connecting strip; 18. Connecting plate; 19. Inner shell; 20. End plate; 21. Limiting plate; 22. Guide plate; 23. Reinforcement part; 24. Threaded hole; 25. Threaded rod; 26. Rotating block; 27. Third lightweight groove.

[0036] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0037] The following is a detailed description of a surgical equipment auxiliary registration device based on augmented reality navigation technology provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0038] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it should be within the knowledge of technicians in the relevant field whether or not such features, structures or characteristics are explicitly described in conjunction with other embodiments.

[0039] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0040] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0041] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0042] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a surgical equipment auxiliary registration device based on augmented reality navigation technology, including a small calibration device body 1, a mounting hole is opened on one side of the small calibration device body 1, and a tubular surgical instrument body 2 is provided on one side of the small calibration device body 1; a mounting mechanism, the mounting mechanism is used to connect the small calibration device body 1 and the tubular surgical instrument body 2, and the mounting mechanism is connected to the small calibration device body 1. The adjusting mechanism is used to adjust the tightness and angle of the tubular surgical instrument body 2. The adjusting mechanism is connected to the tubular surgical instrument body 2. The device can quickly fix the small calibration device body 1 and the tubular surgical instrument body 2 together by utilizing the installation mechanism during the surgical operation of medical staff, and the operation is convenient and quick. At the same time, it is also convenient to separate the small calibration device body 1 and the tubular surgical instrument body 2. The structural design effectively improves the work efficiency of medical staff. The device can adjust the device to adapt to tubular surgical instrument bodies 2 with different inner diameters by utilizing the adjusting mechanism, and the adjustment is convenient and quick. At the same time, the angle of the tubular surgical instrument body 2 can be flexibly adjusted through adjustment, which further makes the operation of medical staff more convenient. See the detailed description below for details. The application range of the device is relatively wide, and the practicability of the device is good.

[0043] like Figures 3 to 5As shown, the installation mechanism includes a connecting tube 4 installed on the small calibration device body 1, and the connecting tube 4 is fixedly connected with a shell 3 on the side away from the small calibration device body 1. The shell 3 and the connecting tube 4 are integrally formed, and the shell 3 and the connecting tube 4 are made of plastic material. The top of the shell 3 is annularly and equidistantly provided with third lightweight grooves 27, and an inner tube 10 is installed in the connecting tube 4. The side of the inner tube 10 close to the small calibration device body 1 is provided with a second limiting portion 11, and the side of the connecting tube 4 close to the small calibration device body 1 is provided with a first limiting portion 6. The shape of the connecting tube 4 is adapted to that of the inner tube 10, and both are narrower on the side close to the small calibration device body 1 and wider on the side away from the small calibration device body 1. The connecting tube 4 and the inner tube 10 are both made of plastic material. The outer diameter of the side of the inner tube 10 close to the small calibration device body 1 is the same as the inner diameter of the mounting hole on the small calibration device body 1. This structure is achieved by firstly pressing the first limiting portion 6 on the connecting tube 4 against the On one side of the mounting hole on the small calibration device body 1, the inner tube 10 is then passed through the mounting hole and inserted into the connecting tube 4. During this period, the wider side of the inner tube 10 is first squeezed and deformed. When the wider side of the inner tube 10 slides to the wider side of the connecting tube 4, the elastic force generated by the rebound of the inner tube 10 makes the connecting tube 4 and the inner tube 10 tightly connected together until the second limiting portion 11 is against the other side of the mounting hole on the small calibration device body 1, so that the second limiting portion 11 and the first limiting portion 6 are in a clamping posture to fix the small calibration device body 1, so that the installation structure can be used in conjunction with other components in the device to quickly and stably install and connect the small calibration device body 1 and the tubular surgical instrument body 2 together. The specific method of use is described in detail below. Similarly, the small calibration device body 1 and the tubular surgical instrument body 2 can be separated by pulling the inner tube 10 out of the connecting tube 4. The structure is simple and easy to use, which effectively improves the work efficiency of the staff.

[0044] like Figures 6 to 9As shown, the adjustment mechanism includes an inner shell 19 installed on the tubular surgical instrument body 2, the outer wall of the connecting tube 4 is sleeved with a threaded block 15, the outer wall of the threaded block 15 is sleeved with a sleeve block 16, the sleeve block 16 is fixedly connected to a connecting strip 17 on the side away from the small calibration device body 1, and the connecting strip 17 is fixedly connected to a connecting piece 18 on the side away from the sleeve block 16. A threaded hole 24 is opened on one side of the inner shell 19, and a threaded rod 25 matching the shape of the threaded hole 24 is installed on the side of the inner shell 19 away from the connecting piece 18, and a rotating block 26 is fixedly connected to the side of the threaded rod 25 away from the inner shell 19. The initial position of the sleeve block 16 is on the side of the threaded block 15 close to the inner shell 19, and the initial position of the threaded block 15 is on the side of the connecting tube 4 close to the small calibration device body 1. The initial state of the inner shell 19 is the state of being retracted to the minimum inner diameter within the adjustable range, and the inner shell 19 is opened. The openings of the sleeve 16 fit in with each other, at which time the connecting strip 17 and the connecting piece 18 connecting the sleeve block 16 and the inner shell 19 are in a naturally stretched state, the outer wall edge of the threaded rod 25 close to the inner shell 19 is arc-shaped, lightweight grooves are equidistantly arranged on the rotating block 26, and hand buckle grooves are equidistantly arranged on the outer wall of the rotating block 26, and anti-slip grooves are arranged on the outer wall of the rotating block 26. When the tubular surgical instrument body 2 is installed, the tubular surgical instrument body 2, the connecting tube 4 and the threaded rod 25 form a T-shaped structure. The formation of the T-shaped structure allows medical staff to hook the connecting tube 4 and the threaded rod 25 with two fingers during the surgical operation, and then use other fingers to assist in limiting the small calibration device body 1 and the tubular surgical instrument body 2 and related structures for connection, so that the device can be stably placed in the hand for use, and the coordinated use of the structures further makes the surgical operation of medical staff more convenient.

[0045] In addition, by inserting the tubular surgical instrument body 2 into the inner shell 19, the present structure makes the minimum inner diameter of the tubular surgical instrument body 2 applicable to the present device larger than the inner diameter of the inner shell 19 in the natural state. During the period when the tubular surgical instrument body 2 is inserted into the inner shell 19, the inner shell 19 expands along the opening, causing the connecting piece 18 to pull the connecting strip 17, thereby causing the sleeve block 16 to drive the threaded block 15 to slide on the connecting tube 4. During the sliding period, since the inner diameter of the connecting tube 4 is fixed, when the connecting tube 4 slides to a part of the connecting tube 4 that is larger than its inner diameter, the connecting tube 4 is squeezed and deformed. In combination with the use of the inner tube 10 therein, the inner tube 10 is tightly confined in the connecting tube 4, thereby further strengthening the connection between the small calibration device body 1 and the tubular surgical instrument body 2. After moving to the specified maximum range, the threaded block 15 stops sliding. After one end of the tubular surgical instrument body 2 is completely inserted into the inner shell 19, the sleeve block 16 on the threaded block 15 is rotated to move the sleeve block 16 toward the small calibration device body 1. During this period, the sleeve block 16 pulls the connecting strip 17 around the connecting tube 4 to produce tensile deformation, thereby tightening the inner shell 19 connected to the other side of the connecting piece 18. At the same time, the threaded block 15 further squeezes the connecting tube 4 due to the influence of the interaction force, and the sleeve block 16 is stopped after the inner shell 19 is tightened to tightly fix the tubular surgical instrument body 2. The inner shell 19 can be tightened to different inner diameters by adjusting the positions of the threaded block 15 and the sleeve block 16. The structure enables the device to be suitable for tubular surgical instrument bodies 2 with different inner diameters, thereby increasing the range of use of the device.

[0046] After tightening and fixing the inner shell 19, the tubular surgical instrument body 2 can be adjusted to the desired angle by rotating the tubular surgical instrument body 2. Then, after fine-tuning the sleeve block 16, the rotating block 26 drives the threaded rod 25 to rotate. Under the action of the thread of the threaded hole 24, one side of the threaded rod 25 is approached to the inner shell 19, and one side of the inner shell 19 is tightly pressed against the inner wall of one side of the outer shell 3, so as to further limit the angle of the inner shell 19. When the structure is used in combination, the tubular surgical instrument body 2 can flexibly adjust the angle under different usage conditions, and the coordinated use of the threaded rod 25 and the sleeve block 16 further makes the fixing effect of the inner shell 19 on the tubular surgical instrument body 2 better. The structure is simple and convenient to operate, and the structure makes the device more practical.

[0047] like Figures 1 to 9As shown, a first lightweight groove 5 is equidistantly provided in an annular manner on one side of the connecting tube 4 close to the small calibration device body 1, a first convex portion 7 is provided on the side of the connecting tube 4 away from the first limiting portion 6, first through holes 8 are provided on both sides of the first convex portion 7, a second through hole 9 is provided on the connecting tube 4, a second convex portion 12 is provided on the side of the inner tube 10 away from the second limiting portion 11, a second lightweight groove 13 is equidistantly provided in an annular manner on the inner tube 10, and a guide portion 14 is provided on the side of the inner tube 10 away from the second limiting portion 11. This structure utilizes the first lightweight groove 5 to make the inner tube 10 deform itself and cooperate with the slight deformation of the connecting tube 4 on the side close to the first lightweight groove 5 when the inner tube 10 is inserted into the connecting tube 4, so that the inner tube 10 can be more easily pushed into the connecting tube 4, thereby making the connection operation of the small calibration device body 1 and the tubular surgical instrument body 2 more convenient. The setting of the through hole 8 limits the threaded block 15. After the connecting strip 17 passes through the first through hole 8, it passes through the second through hole 9 and is connected with the connecting piece 18, so that when the connecting strip 17 pulls the threaded block 15 to slide on the connecting tube 4, it will not continue to move toward the tubular surgical instrument body 2 on the connecting tube 4 after sliding to the first protrusion 7 at the maximum. The setting of the guide part 14 makes it easier to insert the inner tube 10 into the connecting tube 4, thereby facilitating the connection between the connecting tube 4 and the inner tube 10. The second lightweight groove 13 on the inner tube 10 makes it easier for the inner tube 10 to deform when squeezed. The second protrusion 12 provided on the inner tube 10 is pressed against the inner wall of one side of the connecting tube 4 during the installation and connection process of the connecting tube 4 and the inner tube 10, thereby making the connection between the connecting tube 4 and the inner tube 10 tighter, thereby making the connection between the small calibration device body 1 and the tubular surgical instrument body 2 more stable.

[0048] like Figures 6 to 9As shown, the connecting piece 18 and the inner shell 19 are integrally formed, the inner wall of the sleeve block 16 is provided with an internal thread, the outer wall of the sleeve block 16 is provided with an anti-slip pattern with a depth of two millimeters, the inner shell 19 is provided with a through slot that matches the shape of the connecting piece 18, the outer wall of the inner shell 19 is annularly fixedly connected with a limiting piece 21, an end piece 20 is provided at the opening of the inner shell 19, the bottom of the inner shell 19 is fixedly connected with a guide piece 22, and the inner walls on both sides of the inner shell 19 are provided with a reinforcement part 23. The integral structure makes the connection between the structures tighter and more stable. Through the coordinated use of the sleeve block 16 and the threaded block 15, the tightness of the inner shell 19 can be finely adjusted in this structure, so that the inner shell 19 will not be over-clamped to cause serious squeezing of the outer wall of the tubular surgical instrument body 2, and at the same time, the tubular surgical instrument body 2 can be stably fixed in the inner shell 19 for use, and it is more convenient during rotation. No side slip will occur during the process, and the limiting piece 21 tends to be straight in a natural state. When the inner shell 19 is deformed, the side of the limiting piece 21 away from the inner shell 19 is tightly pressed against the inner wall of the outer shell 3. As the extrusion force changes, the limiting piece 21 changes to varying degrees. The setting of the limiting piece 21 can keep the outer shell 3 and the inner shell 19 in a relatively stable state. The limiting piece 21 cooperates with the use of the outer shell 3 to provide good auxiliary support for the inner shell 19. The setting of the end piece 20 prevents serious mutual friction when the openings of the inner shell 19 contact each other. The setting of the guide piece 22 is used to assist the insertion of the tubular surgical instrument body 2, and plays a good guiding role. The reinforcement part 23 provided on the inner shell 19 can cause a certain degree of deformation when the side of the inner shell 19 close to the reinforcement part 23 is subjected to pressure, thereby making the angle of the tubular surgical instrument body 2 more adjustable.

[0049] The specific working process of the technical solution of the present invention is as follows:

[0050] When in use, first place the first limiting portion 6 on the connecting tube 4 close to one side of the mounting hole on the small calibration device body 1, and then insert the inner tube 10 into the connecting tube 4 after passing through the mounting hole. During the insertion process, the guide portion 14 on one side of the inner tube 10 plays a guiding role. At the same time, the wider side of the inner tube 10 is squeezed and deformed first, and the second lightweight groove 13 is used to make the inner tube 10 easier to deform. When the wider side of the inner tube 10 slides to the wider side of the connecting tube 4, the elastic force generated by the rebound of the inner tube 10 makes the connecting tube 4 and the inner tube 10 tightly connected together, and the second convex portion 12 provided on the inner tube 10 makes the squeezing force generated by the connecting tube 4 and the inner tube 10 stronger, so that the connection between the small calibration device body 1 and the tubular surgical instrument body 2 is tighter, until the second limiting portion 11 presses against the small On the other side of the mounting hole on the small calibration device body 1, the second limiting portion 11 and the first limiting portion 6 are in a clamping posture to fix the small calibration device body 1, so that the small calibration device body 1 and the tubular surgical instrument body 2 are quickly and stably installed and connected together, and then the tubular surgical instrument body 2 is inserted into the inner shell 19, and the minimum inner diameter of the tubular surgical instrument body 2 applicable to the device is specified to be larger than the inner diameter of the inner shell 19 in the natural state. During the insertion of the tubular surgical instrument body 2 into the inner shell 19, the guide piece 22 first guides the insertion of the tubular surgical instrument body 2, and the limiting piece 21 assists in limiting the inner shell 19. The inner shell 19 expands along the opening, causing the connecting piece 18 to pull the connecting strip 17, and then the sleeve block 16 drives the threaded block 15 to slide on the connecting pipe 4.

[0051] During the sliding period, since the inner diameter of the connecting tube 4 is fixed, when the connecting tube 4 slides to a part of the connecting tube 4 that is larger than its inner diameter, the connecting tube 4 is squeezed and deformed. The inner tube 10 therein is deformed so that the inner tube 10 is tightly confined in the connecting tube 4, thereby further strengthening the connection between the small calibration device body 1 and the tubular surgical instrument body 2. When the threaded block 15 slides to the maximum range specified, the threaded block 15 stops sliding. At this time, the threaded block 15 stops near the first protrusion 7. The first protrusion 7 and the connecting strip 17 inserted in the first through-hole 8 are used to limit the threaded block 15, so that one end of the tubular surgical instrument body 2 is completely fixed. After being inserted into the inner shell 19, the sleeve block 16 on the threaded block 15 is rotated to move the sleeve block 16 toward the small calibration device body 1. During this period, the sleeve block 16 pulls the connecting strip 17 around the connecting tube 4 to produce tensile deformation, thereby tightening the inner shell 19 connected to the other side of the connecting piece 18. At the same time, the threaded block 15 is further squeezed on the connecting tube 4 by the influence of the interaction force. After the inner shell 19 is tightened to tightly fix the tubular surgical instrument body 2, the sleeve block 16 is stopped from being rotated. By adjusting the positions of the threaded block 15 and the sleeve block 16, the inner shell 19 can be tightened to different inner diameters, so that the device can be suitable for tubular surgical instrument bodies 2 with different inner diameters, thereby increasing the scope of use of the device.

[0052] The screw threaded rod 25 is then pulled out of the sleeve 16 and the threaded hole 24 is engaged to move one side of the screw threaded rod 25 toward the inner shell 19, and one side of the inner shell 19 is tightly pressed against the inner wall of the outer shell 3, thereby further limiting the angle of the inner shell 19. When the structure is used in combination, the angle of the tubular surgical instrument body 2 can be flexibly adjusted under different usage conditions, and the combined use of the threaded rod 25 and the sleeve 16 further improves the fixing effect of the inner shell 19 on the tubular surgical instrument body 2. Similarly, the sleeve 16 is rotated to loosen the inner shell 19, and then the inner tube 10 is pulled out of the connecting tube 4 to separate the small calibration device body 1 and the tubular surgical instrument body 2. The structure of the device is simple, and it is convenient and quick to use, and the practicability of the device is good.

[0053] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A surgical equipment auxiliary registration device based on augmented reality navigation technology, characterized in that: It comprises a small calibration device body, one side of which is provided with a mounting hole, and one side of which is provided with a tubular surgical instrument body; A mounting mechanism, the mounting mechanism is used to connect the small calibration device body and the tubular surgical instrument body, the mounting mechanism is connected to the small calibration device body; An adjusting mechanism is used to adjust the tightness and angle of the tubular surgical instrument body, and the adjusting mechanism is connected to the tubular surgical instrument body.

2. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 1, characterized in that: The installation mechanism includes a connecting tube installed on the small calibration device body, a shell is fixedly connected to the side of the connecting tube away from the small calibration device body, an inner tube is installed in the connecting tube, a second limiting portion is provided on the side of the inner tube close to the small calibration device body, and a first limiting portion is provided on the side of the connecting tube close to the small calibration device body.

3. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 2, characterized in that: A first lightweight groove is equidistantly provided in an annular manner on one side of the connecting pipe close to the body of the small calibration device, and a first convex portion is provided on one side of the connecting pipe away from the first limiting portion.

4. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 2, characterized in that: Both sides of the first protrusion are provided with first through holes, and the connecting pipe is provided with a second through hole.

5. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 2, characterized in that: A second convex portion is provided on a side of the inner tube away from the second limiting portion, second lightweight grooves are equidistantly arranged in an annular shape on the inner tube, and a guide portion is provided on a side of the inner tube away from the second limiting portion.

6. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 1, characterized in that: The adjustment mechanism includes an inner shell installed on the tubular surgical instrument body, the outer wall of the connecting tube is sleeved with a threaded block, the outer wall of the threaded block is sleeved with a sleeve block, the sleeve block is fixedly connected to a connecting strip on the side away from the small calibration device body, the connecting strip is fixedly connected to a connecting plate on the side away from the sleeve block, a threaded hole is opened on one side of the inner shell, a threaded rod matching the shape of the threaded hole is installed on the side of the inner shell away from the connecting plate, and a rotating block is fixedly connected to the side of the threaded rod away from the inner shell.

7. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 6, characterized in that: The connecting piece and the inner shell are integrally formed.

8. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 2, characterized in that: The shell and the connecting pipe are integrally formed, and the shell and the connecting pipe are made of plastic material. The top of the shell is annularly provided with third lightweight grooves at equal intervals.

9. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 6, characterized in that: The inner wall of the sleeve block is provided with an internal thread, the outer wall of the sleeve block is provided with an anti-slip pattern with a depth of two millimeters, and the inner shell is provided with a through-slot that matches the shape of the connecting piece.

10. The surgical equipment auxiliary registration device based on augmented reality navigation technology according to claim 6, characterized in that: The outer wall of the inner shell is annularly fixedly connected with a limit plate, the opening of the inner shell is provided with an end plate, the bottom of the inner shell is fixedly connected with a guide plate, and the inner walls on both sides of the inner shell are provided with reinforcement parts.

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