Ultrasonic osteotome positioning structure and ultrasonic osteotome device

Abstract

The utility model relates to an ultrasonic osteotome positioning structure and an ultrasonic osteotome device, and relates to the technical field of dental medical instruments. When the first connecting piece and the second connecting piece in the ultrasonic osteotome positioning structure are connected in an inserted mode, the first contact portion of the first matching face and the second matching face is a small-area portion, the area of the first matching face and the second matching face which are in contact subsequently can be increased along with the increase of the inserting depth, friction force is increased, and the service life of the ultrasonic osteotome is prolonged. The first connecting piece and the second connecting piece are connected more tightly, and the connecting precision is improved. Due to the fact that the area of the initial contact surface is small, in the initial inserting stage, even if the inserting direction deviates, adjustment can be conducted easily, the gap generated when the first matching surface and the second matching surface are completely matched is further reduced, and the accuracy and stability of connection between the first connecting piece and the second connecting piece are improved. In the operation, the risk that the reference piece shakes relative to the blade point part is reduced, and the accuracy of the determined position of the blade point part is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dental medical instruments, in particular to an ultrasonic bone knife positioning structure and an ultrasonic bone knife device. BACKGROUND

[0002] At present, in dental surgery, doctors usually rely on the naked eye to perform ultrasonic bone knife surgery. The position of the blade part of the ultrasonic bone knife can only be obtained by the naked eye, and it is difficult to ensure the completion of the surgery. Therefore, how to obtain the accurate position of the blade part is a problem worth paying attention to. CONTENT OF THE UTILITY MODEL

[0003] Based on this, the present application provides an ultrasonic bone knife positioning structure and an ultrasonic bone knife device to improve the accuracy of determining the position of the blade part of the ultrasonic bone knife during surgery.

[0004] In a first aspect, the embodiments of the present application provide an ultrasonic bone knife device for positioning the blade part of the ultrasonic bone knife, the ultrasonic bone knife device comprising:

[0005] a reference part for mounting on the handle part of the ultrasonic bone knife, and a positioning part configured to determine the current position information of the reference part, and determine the current position information of the blade part based on the current position information of the reference part and the relationship between the position information of the reference part and the position information of the blade part; and

[0006] a connecting assembly comprising a first connecting part and a second connecting part, one of the handle part and the reference part is connected with the first connecting part, and the other is connected with the second connecting part;

[0007] The first connecting part comprises a first connecting body, a plug-in part protruding from the first connecting body, and a first protruding part provided on the outer circumferential surface of the plug-in part, and the second connecting part is provided with a plug hole, and the hole wall of the plug hole is provided with a first recess; the first protruding part has a first mating surface, and the first recess has a second mating surface for abutting with the first mating surface; the plug hole has a first side and a second side oppositely arranged along the axial direction of the plug hole, and the plug-in part is inserted into the plug hole through the first side of the plug hole;

[0008] In the extension direction of the plug-in part away from the first connecting part, the area of the first mating surface shows a decreasing trend; in the direction along the axis of the plug hole and pointing to the first side of the plug hole, the area of the second mating surface shows a decreasing trend.

[0009] In one of the embodiments, in the extension direction of the plug-in part away from the first connecting part, the area of the first mating surface gradually decreases;

[0010] In the direction along the axis of the plug hole and pointing to the first side of the plug hole, the area of the second mating surface gradually decreases.

[0011] In one of the embodiments, a direction in which the first mating surface extends from the protrusion towards the first connecting member is defined as a first direction, a direction parallel to the axis of the protrusion is defined as a second direction, and an angle between the first direction and the second direction is an acute angle.

[0012] A surface perpendicular to the axial direction of the plug-in part is defined as a reference surface, the plug-in part has a first surface and a second surface oppositely arranged along the axial direction of the plug-in part, the second surface is connected to the first connecting member, a normal projection of the first surface on the reference surface is a first edge line, and a normal projection of the second surface on the reference surface is a second edge line; the first edge line is located in the second edge line.

[0013] In one of the embodiments, the first mating surface and the second mating surface are both configured as arc surfaces.

[0014] In one of the embodiments, a plurality of first protrusions are arranged on the outer circumferential surface of the plug-in part, and a plurality of first recesses are correspondingly arranged on the hole wall of the plug hole.

[0015] In one of the embodiments, a second recess is defined between two first protrusions adjacent in the circumferential direction of the plug-in part, the second connecting member further includes a plurality of second protrusions arranged on the hole wall of the plug hole and spaced apart in the circumferential direction, and a first recess is defined between two second protrusions adjacent in the circumferential direction.

[0016] The second recess has a third mating surface, and the second protrusion has a fourth mating surface for abutting the third mating surface.

[0017] In the direction in which the plug-in part extends away from the first connecting member, the area of the third mating surface shows an increasing trend; in the direction along the axis of the plug hole and pointing to the first side of the plug hole, the area of the fourth mating surface shows an increasing trend.

[0018] In one of the embodiments, the area of the first mating surface is greater than the area of the third mating surface, and the area of the second mating surface is greater than the area of the fourth mating surface.

[0019] In one of the embodiments, a second recess is defined between two first protrusions adjacent in the circumferential direction of the plug-in part, the second connecting member further includes a plurality of second protrusions arranged on the hole wall of the plug hole and spaced apart in the circumferential direction, and a first recess is defined between two second protrusions adjacent in the circumferential direction.

[0020] In the direction in which the plug-in part extends away from the first connecting member, the area of the third mating surface shows an increasing trend; in the direction along the axis of the plug hole and pointing to the first side of the plug hole, the area of the fourth mating surface shows an increasing trend.

[0021] The second recess and the two first protrusions adjacent in the circumferential direction define two second connecting lines, and a face parallel to the two second connecting lines is defined as a second reference face; a projection of the second matching face on the second reference face is a trapezoid.

[0022] In one of the embodiments, one of the first connecting member and the second connecting member is detachably connected with the reference member, and the other is rotatably connected with the shank portion.

[0023] In one of the embodiments, the connecting assembly further comprises a fastener, and a threaded hole matched with the fastener is formed on the insertion portion, and the fastener is threadedly connected with the insertion portion through the threaded hole.

[0024] In the second aspect, the embodiments of the present application provide an ultrasonic osteotome device, comprising the ultrasonic osteotome positioning structure in any of the above embodiments and an ultrasonic osteotome, wherein the ultrasonic osteotome comprises a shank portion and a blade portion connected with each other, and the reference member is mounted on the shank portion.

[0025] When the first connecting member and the second connecting member of the ultrasonic osteotome positioning structure are inserted, the part where the first matching face and the second matching face first contact is the part with a smaller area, and as the insertion depth increases, the area of the first matching face and the second matching face subsequently contacted will increase, thereby increasing the friction, making the first connecting member and the second connecting member more closely connected, and improving the connection accuracy. Moreover, since the area of the initially contacted face is small, even if the insertion position is deviated at the initial insertion stage, it can be easily adjusted, further reducing the gap between the first matching face and the second matching face when they are completely matched, improving the accuracy and stability of the connection between the first connecting member and the second connecting member, and making the reference member more accurately and stably mounted on the shank portion. In this way, during the operation, the risk of the reference member shaking relative to the blade portion is reduced, and the accuracy of the determined position of the blade portion is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structural schematic diagram of the ultrasonic osteotome positioning structure provided by some embodiments of the present application is shown.

[0027] Figure 2 The structural schematic diagram of the ultrasonic osteotome positioning structure in the above-mentioned ultrasonic osteotome positioning structure is shown. Figure 1

[0028] Figure 3 The structural schematic diagram of the first connecting member of the ultrasonic osteotome positioning structure in the above-mentioned ultrasonic osteotome positioning structure in some embodiments is shown. Figure 1

[0029] Figure 4 The structural schematic diagram of the second connecting member of the ultrasonic osteotome positioning structure in the above-mentioned ultrasonic osteotome positioning structure in some embodiments is shown. Figure 1 ​​​

[0030] Figure 5 Fig. 1 is a perspective view of an ultrasonic bone cutter positioning structure according to an embodiment of the present application. Figure 3 Fig. 2 is a partial enlarged view of a portion of Fig. 1.

[0031] Figure 6 Fig. 3 is a perspective view of an ultrasonic bone cutter positioning structure according to another embodiment of the present application. Figure 4 Fig. 4 is a partial enlarged view of a portion of Fig. 3.

[0032] Figure 7 Fig. 5 is a perspective view of an ultrasonic bone cutter positioning structure according to yet another embodiment of the present application. Figure 1 Fig. 6 is a schematic view of the orthographic projection of the first and second faces of the ultrasonic bone cutter positioning structure in Fig. 5 on a reference face.

[0033] Figure 8 Fig. 7 is a schematic view of the orthographic projection of the first mating face of the ultrasonic bone cutter positioning structure in Fig. 5 on a first reference face. Figure 1

[0034] Figure 9 Fig. 8 is a schematic view of the orthographic projection of the second mating face of the ultrasonic bone cutter positioning structure in Fig. 5 on a second reference face. Figure 1

[0035] Figure 10 Fig. 9 is a schematic view of the three-dimensional structure of the first and second connecting members of the ultrasonic bone cutter positioning structure in Fig. 5 in yet another embodiment. Figure 1

[0036] Figure 11 Fig. 10 is a schematic view of the three-dimensional structure of the first and second connecting members of the ultrasonic bone cutter positioning structure in Fig. 5 from another angle. Figure 10

[0037] Reference numerals in the detailed description of the embodiments are as follows:

[0038] 100, ultrasonic bone cutter positioning structure, 1, reference member, 2, positioning member, 31, handle portion, 32, blade portion, 41, first connecting member, 411, first connecting body, J, insertion portion, M1, first face, M2, second face, T1, first protrusion, P1, first mating face, 42, second connecting member, A1, first recess, P2, second mating face, K, insertion hole, C1, first side, C2, second side, S, reference face, X1, first edge line, X2, second edge line, A2, second recess, T2, second protrusion, P3, third mating face, P4, fourth mating face, Z1, first reference face, Y1, orthographic projection of the first mating face P1 on the first reference face Z1, Z2, second reference face, Y2, orthographic projection of the second mating face P2 on the second reference face Z2, LJ1, first connecting line, LJ2, second connecting line, G, fastener, LW, threaded hole, K1, mounting hole, U1, first axis, U2, second axis, F1, first direction, F2, second direction, F3, direction along the axis of the insertion hole K and pointing to the first side C1 of the insertion hole K. DETAILED DESCRIPTION ​​​​

[0039] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. Accordingly, the present application should not be limited by the following description and examples.

[0040] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, the features limited by "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0042] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" or the like between a first feature and a second feature, it can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature can be "below", "under" and "under" the second feature, which can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0044] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not mean the only implementation.

[0045] Referring to Figure 1 , Figure 1 A structural schematic diagram of an ultrasonic bone knife positioning structure 100 provided for some embodiments of the present application. The ultrasonic bone knife positioning structure 100 is used to position the blade portion 32 of the ultrasonic bone knife, and the ultrasonic bone knife positioning structure 100 comprises a reference element 1, a positioning element 2 and a connecting assembly. The reference element 1 is used to be installed on the handle portion 31 of the ultrasonic bone knife, the positioning element 2 is configured to determine the current position information of the reference element 1, and based on the current position information of the reference element 1 and the relationship between the position information of the reference element 1 and the position information of the blade portion 32, the current position information of the blade portion 32 is determined.

[0046] The "reference element 1" refers to a component used as a reference. Specifically in the present application, the reference element 1 is installed on the handle portion 31 of the ultrasonic bone knife, so that during the operation, the blade portion 32 of the ultrasonic bone knife will extend into the patient's teeth, and in the case that the positioning element 2 cannot quickly and accurately identify the specific position information of the blade portion 32, the positioning element 2 can determine the current position information of the blade portion 32 by determining the current position information of the reference element 1 and based on the current position information of the reference element 1 and the relationship between the position information of the reference element 1 and the position information of the blade portion 32. The reference element 1 is used as a carrier and is arranged on the handle portion 31, which facilitates the positioning element 2 to determine the information of the positioning element 2 and further determine the current position information of the blade portion 32 of the ultrasonic bone knife.

[0047] The positioning member 2 described above can be provided as a binocular navigator. The binocular navigator is a device that simulates the human visual system to perform three-dimensional positioning and environmental perception by using two cameras. The binocular navigator first captures left and right images of the reference member 1 by two cameras at a certain distance apart, and then performs preprocessing such as denoising, correction, white balance, and contrast enhancement on the images. The binocular navigator extracts key feature points such as corner points, edges, and spots in the images using an internal algorithm, matches the feature points in the left and right images, finds the corresponding positions of the same physical point in the two images, calculates the disparity, i.e., the difference in the horizontal coordinates of the same feature point in the left and right images, using the matched feature points, and calculates the depth information of the feature points using the disparity and the baseline length of the binocular camera, thereby obtaining the three-dimensional structure of the reference member 1 and determining the position coordinates of the reference member 1 in the three-dimensional space. This is not limited, and other structures can be used to determine the position coordinates of the reference member 1 in the three-dimensional space.

[0048] The acquisition of the "relationship between the current position information of the reference member 1 and the position information of the blade portion 32" can first define a local coordinate system for both the reference member 1 and the blade portion 32, usually selecting the geometric center as the origin, then calculating the vector between the centers of the reference member 1 and the blade portion 32, and then calculating the straight-line distance between the two entities using the Euclidean distance to obtain the position relationship between the reference member 1 and the blade portion 32. This is not limited, and other structures can be used to obtain the position relationship between the reference member 1 and the blade portion 32.

[0049] Continuing to refer to Figure 1 , and in combination with the reference Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , Figure 2 , the exploded structural diagram of the ultrasonic bone knife positioning structure in Figure 1 , the three-dimensional structural diagram of the first connecting member 41 of the ultrasonic bone knife positioning structure 100 in Figure 3 , the three-dimensional structural diagram of the second connecting member 42 of the ultrasonic bone knife positioning structure 100 in some embodiments in Figure 1 , the local enlarged view of a in Figure 4 , the local enlarged view of b in Figure 1 , the local enlarged view of c in Figure 5 , the local enlarged view of d in Figure 3 , the local enlarged view of e in Figure 6 , the local enlarged view of f in Figure 3The local enlarged view at B. The connecting assembly includes a first connecting piece 41 and a second connecting piece 42, one of the tool shank 31 and the reference piece 1 is connected with the first connecting piece 41. The first connecting piece 41 includes a first connecting body 411, a joint portion J protruding from the first connecting body 411, and a first protruding portion T1 provided on the outer circumferential surface of the joint portion J. The second connecting piece 42 is provided with a socket K, and the socket K is provided with a first recessed portion A1 on the hole wall. The first protruding portion T1 has a first mating surface P1, and the first recessed portion A1 has a second mating surface P2 for abutting the first mating surface P1. The socket K has a first side C1 and a second side C2 oppositely arranged along the axial direction of the socket K, and the joint portion J is inserted into the socket K through the first side C1 of the socket K. Along the extension direction of the joint portion J away from the first connecting piece 41, the area of the first mating surface P1 tends to decrease; along the axial direction of the socket K and in the direction F3 pointing to the first side C1 of the socket K, the area of the second mating surface P2 tends to decrease.

[0050] Wherein, the "tendency to decrease" can include a phased decrease, such as first decreasing, then not changing, and then decreasing; or can include a continuous decrease, such as a consistent decrease speed or a fast decrease first and then a slow decrease. Taking the first decreasing, then not changing, and then decreasing as an example, the tendency to decrease is divided into three stages: the "first decreasing" stage, the "not changing" stage, and the "second decreasing" stage. The "mating surface" refers to the area where multiple mechanical components are connected or matched with each other, and in this application, it specifically refers to the surface matched after the joint portion J is connected with the socket K.

[0051] When the first connecting piece 41 is inserted into the second connecting piece 42, the part where the first mating surface P1 and the second mating surface P2 first contact is the part with a smaller area, and as the insertion depth increases, the area of the first mating surface P1 and the second mating surface P2 that are subsequently contacted will increase, thereby increasing the friction and making the connection between the first connecting piece 41 and the second connecting piece 42 more secure, and improving the connection accuracy. Moreover, since the area of the initially contacted surface is small, even if the insertion orientation is slightly deviated, it can be easily adjusted during the initial insertion stage, further reducing the gap between the first mating surface P1 and the second mating surface P2 when they are completely matched, and improving the accuracy and stability of the connection between the first connecting piece 41 and the second connecting piece 42, so that the reference piece 1 is more accurately and stably installed to the tool shank 31.

[0052] In this way, during the operation, the risk of the reference piece 1 shaking relative to the blade portion 32 is reduced, and the accuracy of the determined position of the blade portion 32 is further improved.

[0053] In some embodiments of the present application, continuing to refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6The area of the first mating surface P1 gradually decreases along the extension direction of the plug-in portion J away from the first connecting piece 41, and the area of the second mating surface P2 gradually decreases along the axis of the socket K and in the direction F3 of the first side C1 of the socket K.

[0054] The "area gradually decreases" refers to the case that the area decreases all the time and the decreasing speed is consistent. In this way, the change of the area can be more uniform, the connecting force between the first mating surface P1 and the second mating surface P2 is more uniform, the process of plugging the plug-in portion J into the socket K is more labor-saving, the convenience of the plugging process is improved, and the gradual decrease of the area presents a regular change, so that the first mating surface P1 and the second mating surface P2 are more easily aligned with each other, and the gap between the first mating surface P1 and the second mating surface P2 when they are completely matched is further reduced.

[0055] In some embodiments of the present application, reference can be made to Figure 2 , Figure 3 , Figure 4 and Figure 6 in combination with reference to Figure 7 , Figure 7 , Figure 1 is a schematic view of the normal projection of the first surface M1 and the second surface M2 of the ultrasonic bone knife positioning structure 100 on the reference surface S. The extension direction of the first mating surface P1 from the convex portion to the first connecting piece 41 is the first direction F1, which can be seen from Figure 5 , and the direction of the mating surface indicated by the reference sign P1 is F1. As can be seen from Figure 3 , the direction parallel to the second axis U of the convex portion is the second direction F2. The angle between the first direction F1 and the second direction F2 is an acute angle. Furthermore, a surface perpendicular to the axial direction of the plug-in portion J is defined as the reference surface S, the plug-in portion J has a first surface M1 and a second surface M2 oppositely arranged along the axial direction of the plug-in portion J, and the second surface M2 is connected to the first connecting piece 41. The normal projection of the first surface M1 on the reference surface S is a first edge line X1, the normal projection of the second surface M2 on the reference surface S is a second edge line X2, and the first edge line X1 is inside the second edge line X2.

[0056] The angle between the first direction F1 and the second direction F2 is 3-7 degrees, for example, which can be 3 degrees, 5 degrees, 7 degrees, etc. At this angle, it is more convenient to produce the convex portion, and at this angle, it is more convenient to plug the first connecting piece 41 into the second connecting piece 42.

[0057] The "edge line" refers to the external contour or edge portion of the area. In the present application, the normal projection of the first surface M1 on the reference surface S is the first edge line X1, and the normal projection of the second surface M2 on the reference surface S is the second edge line X2. The first edge line X1 is the external contour line of the first surface M1, and the second edge line X2 is the external contour line of the second surface M2.

[0058] In this way, during the plugging of the plug-in part J and the socket K, the first matching surface P1 and the second matching surface P2 serve as inclined surfaces and have a guiding effect, helping the correct alignment of the plug-in part J and the socket K, so that the plug-in part J is more easily plugged into the socket K. The normal projection of the first surface M1 on the reference surface S is a first edge line X1, the normal projection of the second surface M2 on the reference surface S is a second edge line X2, and the first edge line X1 is located in the second edge line X2. For example, the circumferential length of the first edge line X1 and the circumferential length of the second edge line are both constant. When the area of the first matching surface P1 decreases in the extension direction of the plug-in part J away from the first connecting piece 41, the first edge line X1 can be divided into m first points, the second edge line X2 can also be divided into m second points, and then the first points and the second points are connected one by one to divide a plurality of first convex parts T1. It can be connected because the circumferential length of the first edge line X1 is less than the circumferential length of the second edge line X2, so the first matching surface P1 formed in the extension direction of the plug-in part J away from the first connecting piece 41 will decrease. Figure 7

[0059] It can be understood that, compared to the case where the first matching surface P1 and the second matching surface P2 are not inclined surfaces, i.e., the first edge line X1 coincides with the second edge line X2 or the second edge line X2 is located in the first edge line X1, when the first matching surface P1 formed in the extension direction of the plug-in part J away from the first connecting piece 41 decreases, the first edge line X1 needs to be divided into m first points, the second edge line X2 needs to be divided into n second points, n is less than m, and n and m are positive integers, and then the first points and the second points are connected one by one. There are m-n points that cannot be matched and connected. At this time, the number of the first matching surface P1 formed is n-1. The above-mentioned setting of the first matching surface P1 and the second matching surface P2 as inclined surfaces can divide the first edge line X1 into m first points, divide the second edge line X2 into m second points, and then connect the first points and the second points one by one. The number of the first matching surface P1 formed is m-1. m is greater than n, so this setting can improve the utilization rate of the outer circumferential surface of the plug-in part J and set a larger number of first matching surfaces P1.

[0060] In some embodiments of the present application, continuing to refer to Figure 3 and Figure 5 The first matching surface P1 and the second matching surface P2 are both configured as arc surfaces.

[0061] In this way, the arc surface is more convenient to produce and manufacture, and the arc surface is smoother, reducing the risk of damage to components by sharp parts during assembly.

[0062] and can refer to Figure 3 , Figure 5 and​Figure 6 In the present application, the plug-in part J is a circular truncated cone structure, the curvatures of the first and second matching surfaces P1 and P2 are the same as the curvature of the side surface of the circular truncated cone structure, the structure is more aesthetically pleasing, and it is more convenient for processing and production.

[0063] In some embodiments of the present application, a plurality of first protrusions T1 are arranged on the outer circumferential surface of the plug-in part J, and a plurality of first recesses A1 are correspondingly arranged on the hole wall of the plug hole K.

[0064] The first protrusion T1 is provided with a plurality of first matching surfaces P1, and the first recess A1 is provided with a plurality of second matching surfaces P2. When the plug-in part J is plugged into the plug hole K, the plurality of first matching surfaces P1 and the plurality of second matching surfaces P2 are matched one by one, further reducing the risk of the reference part 1 shaking relative to the blade part 32, and further improving the accuracy of the determined position of the blade part 32.

[0065] It can be understood that a plurality of means at least two, the number of first protrusions T1 can be two, three, four, etc. A plurality of first protrusions T1 are arranged on the outer circumferential surface of the plug-in part J, a plurality of first protrusions T1 can be arranged with intervals, a plurality of first protrusions T1 can be arranged without intervals, or a plurality of first protrusions T1 can be arranged with intervals and a plurality of first protrusions T1 can be arranged without intervals. The above-mentioned situations are within the scope of the present application.

[0066] In some embodiments of the present application, continuing to refer to Figure 3 , Figure 5 and Figure 6 . The second connecting part 42 further comprises a plurality of second protrusions T2 arranged on the hole wall of the plug hole K and spaced apart in the circumferential direction, and a second recess A2 is defined between two first protrusions T1 adjacent to each other in the circumferential direction of the plug-in part J. The second connecting part 42 further comprises a plurality of second protrusions T2 arranged on the hole wall of the plug hole K and spaced apart in the circumferential direction, and a first recess A1 is defined between two second protrusions T2 adjacent to each other in the circumferential direction. The second recess A2 has a third matching surface P3, and the second protrusion T2 has a fourth matching surface P4 for abutting against the third matching surface P3. In the extension direction of the plug-in part J away from the first connecting part 41, the area of the third matching surface P3 increases; in the direction F3 of the axis of the plug hole K and pointing to the first side C1 of the plug hole K, the area of the fourth matching surface P4 increases.

[0067] The "increasing trend" can include a phased increase, such as first increasing, then remaining unchanged, and then increasing; or it can include a constant increase, such as a consistent increase in speed or a fast increase followed by a slow increase. Taking the increasing trend as an example of first increasing, then remaining unchanged, and then increasing, the increasing trend is divided into three stages: "first increasing" stage, "remaining unchanged" stage, and "then increasing" stage.

[0068] It is understandable that the first mating surface P1 is a convex surface and the third mating surface P3 is a concave surface. The convex surface can be regarded as a shaft and the concave surface can be regarded as a hole. In this way, as the insertion part J and the insertion hole K gradually mate, the gap of the concave surface gradually decreases, thereby improving the tightness of the insertion part J and the insertion hole K, further reducing the risk of the reference part 1 wobbling relative to the blade part 32, and further improving the accuracy of the determined position of the blade part 32.

[0069] In some embodiments of this application, reference continues to be made to... Figure 3 , Figure 5 and Figure 6 The area of ​​the first mating surface P1 is greater than the area of ​​the third mating surface P3, and the area of ​​the second mating surface P2 is greater than the area of ​​the fourth mating surface P4.

[0070] It is understandable that the first mating surface P1 on the first convex part T1 is a convex surface, and the third mating surface P3 on the second concave part A2 is a concave surface, both exposed to the outside. In actual production, since this structure is used on an ultrasonic bone scalpel, the size of the insertion part J is usually small, and the areas of the convex and concave surfaces are also usually designed to be small. However, if the area of ​​the convex surface is too small, the protruding part may be too sharp, causing the insertion part J to damage various components during insertion or transportation. Therefore, the convex surface needs to meet a certain area size to be designed smoothly. Therefore, in this application, the area of ​​the first mating surface P1 is set to be larger than that of the third mating surface P3, so that the convex surface is designed to be as smooth as possible, reducing the risk of the above-mentioned problems.

[0071] In some embodiments of this application, reference continues to be made to... Figures 3 to 6 and in conjunction with reference Figure 8 and Figure 9 , Figure 8 for Figure 1 A schematic diagram of the orthographic projection of the first mating surface P1 of the ultrasonic bone scalpel positioning structure 100 onto the first reference surface Z1. Figure 9 for Figure 1The second matching surface P2 of the ultrasonic bone knife positioning structure 100 in the second reference surface Z2 is schematically shown in the orthographic projection. The second recess A2 is defined between two first protrusions T1 adjacent in the circumferential direction of the insertion portion J, and the second connecting piece 42 further comprises a plurality of second protrusions T2 arranged on the hole wall of the insertion hole K and spaced in the circumferential direction, and the first recess A1 is defined between two second protrusions T2 adjacent in the circumferential direction; wherein the two first connecting lines LJ1 are defined between the first protrusion T1 and the two second recesses A2 adjacent in the circumferential direction, and the first reference surface Z1 is defined as a surface parallel to the two first connecting lines LJ1; the orthographic projection Y1 of the first matching surface P1 in the first reference surface Z1 is a trapezoid; and / or the two second connecting lines LJ2 are defined between the second recess A2 and the two first protrusions T1 adjacent in the circumferential direction, and the second reference surface Z2 is defined as a surface parallel to the two second connecting lines LJ2; the orthographic projection Y2 of the second matching surface P2 in the second reference surface Z2 is a trapezoid.

[0072] In the case of "the second recess A2 is defined between two first protrusions T1 adjacent in the circumferential direction of the insertion portion J, and the second connecting piece 42 further comprises a plurality of second protrusions T2 arranged on the hole wall of the insertion hole K and spaced in the circumferential direction, and the first recess A1 is defined between two second protrusions T2 adjacent in the circumferential direction, the two first connecting lines LJ1 are defined between the first protrusion T1 and the two second recesses A2 adjacent in the circumferential direction, and the first reference surface Z1 is defined as a surface parallel to the two first connecting lines LJ1, and the orthographic projection Y1 of the first matching surface P1 in the first reference surface Z1 is a trapezoid.", by setting the orthographic projection Y1 of the first matching surface P1 in the first reference surface Z1 as a trapezoid, the trapezoidal structure can withstand pressure and torsional force better than other square or circular structures, so that the insertion of the insertion portion J and the insertion hole K is more stable. And the trapezoidal structure not only meets the requirement of gradually decreasing area, but also is convenient for processing and production, and has certain aesthetic appearance.

[0073] In the case of "the second recess A2 is defined between two first protrusions T1 adjacent in the circumferential direction of the insertion portion J, and the second connecting piece 42 further comprises a plurality of second protrusions T2 arranged on the hole wall of the insertion hole K and spaced in the circumferential direction, and the first recess A1 is defined between two second protrusions T2 adjacent in the circumferential direction, the two first connecting lines LJ1 are defined between the first protrusion T1 and the two second recesses A2 adjacent in the circumferential direction, and the first reference surface Z1 is defined as a surface parallel to the two first connecting lines LJ1, and the orthographic projection Y1 of the first matching surface P1 in the first reference surface Z1 is a trapezoid.", by setting the orthographic projection Y1 of the first matching surface P1 in the first reference surface Z1 as a trapezoid, the trapezoidal structure can withstand pressure and torsional force better than other square or circular structures, so that the insertion of the insertion portion J and the insertion hole K is more stable. And the trapezoidal structure not only meets the requirement of gradually decreasing area, but also is convenient for processing and production, and has certain aesthetic appearance.

[0074] The second connecting piece 42 further comprises a plurality of second protrusions T2 arranged on the hole wall of the insertion hole K and spaced apart in the circumferential direction, and a first recess A1 is defined between two second protrusions T2 adjacent in the circumferential direction, and two first connecting lines LJ1 are defined between the first protrusion T1 and two second recesses A2 adjacent in the circumferential direction, and a first reference surface Z1 is defined as a surface parallel to the two first connecting lines LJ1, and the orthographic projection Y1 of the first fitting surface P1 on the first reference surface Z1 is a trapezoid, and two second connecting lines LJ2 are defined between the second recess A2 and two first protrusions T1 adjacent in the circumferential direction, and a second reference surface Z2 is defined as a surface parallel to the two second connecting lines LJ2, and the orthographic projection Y2 of the second fitting surface P2 on the second reference surface Z2 is a trapezoid. By setting the orthographic projection Y1 of the first fitting surface P1 on the first reference surface Z1 as a trapezoid and setting the orthographic projection Y2 of the second fitting surface P2 on the second reference surface Z2 as a trapezoid, the structure is more regular and consistent, which is not only more visually beautiful and easier to cut and process, but also makes the stress on the first fitting surface P1 and the second fitting surface P2 more uniform during the insertion process.

[0075] In some embodiments of the present application, reference can be made to Figure 1 With Figure 2 One of the first connecting piece 41 and the second connecting piece 42 is detachably connected with the reference piece 1, and the other is rotatably connected with the shank portion 31.

[0076] Wherein, "detachable connection" should be understood as that the original connection function can be maintained after the connection structure is removed, that is, the connection can be completed in the same way when connected again, which can be but is not limited to bolt connection, clamping, magnetic attraction connection, etc.

[0077] With reference to Figure 3 The axis of the shank portion 31 is a first axis U1, and the first connecting piece 41 and the second connecting piece 42 can be angularly adjusted about a second axis U2. Wherein, the first axis U1 is perpendicular to the second axis U2, so that with a contour line of the reference piece as a reference, the motion track of the contour line is on a first plane when the angle of the reference piece is adjusted, and the first plane is perpendicular to the second axis U2. Since the first axis U1 is perpendicular to the second axis U2, the first plane is parallel to the first axis U1, which reduces the risk of collision of the reference piece 1 with the ultrasonic bone knife when the angle of the reference piece 1 is adjusted. Moreover, the reference piece 1 can not only be angularly adjusted about the second axis U2, but also be rotated about the first axis U1, so that the reference piece 1 has a larger range of motion and is suitable for different surgical scenarios.

[0078] In some embodiments of the present application, reference can be made to Figures 1 to 3 and in combination with Figure 10With Figure 11 , Figure 10 For Figure 1 the ultrasonic osteotome positioning structure in some embodiments, Figure 11 For Figure 10 the first connecting piece and the second connecting piece in another angle. The connecting assembly further comprises a fastener G, and the insertion portion J is provided with a threaded hole LW matched with the fastener G, and the fastener G is threadedly connected with the insertion portion J through the threaded hole LW. For details, Figure 10 With Figure 11 the mounting hole K1 is used for mounting the part of the insertion portion J provided with the threaded hole LW.

[0079] In this way, after the insertion portion J is inserted into the insertion hole K, the first connecting piece 41 and the second connecting piece 42 are more tightly connected together through the threaded connection of the fastener G and the threaded hole LW on the insertion portion J, further reducing the risk of shaking of the reference piece 1 relative to the blade portion 32, and further improving the accuracy of the determined position of the blade portion 32.

[0080] Based on the same inventive concept, the embodiment of the present application provides an ultrasonic osteotome device, which comprises the ultrasonic osteotome positioning structure 100 in any of the above embodiments and an ultrasonic osteotome, the ultrasonic osteotome comprising a handle portion 31 and a blade portion 32 connected with each other, and the reference piece 1 is mounted on the handle portion 31.

[0081] The above ultrasonic osteotome positioning structure 100 has the advantages, and the ultrasonic osteotome device also has the advantages, which will not be repeated here.

[0082] The technical features of the above embodiments can be combined in any way. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0083] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An ultrasonic osteotome positioning structure for positioning a blade portion of an ultrasonic osteotome, characterized by, The ultrasonic osteotome positioning structure comprises: a reference member configured to be mounted on a shank portion of the ultrasonic osteotome, and a positioning member configured to determine current position information of the reference member, and determine current position information of the blade portion based on the current position information of the reference member and a relationship between the position information of the reference member and the position information of the blade portion; and a connecting assembly comprising a first connecting member and a second connecting member, one of the shank portion and the reference member being connected to the first connecting member, and the other being connected to the second connecting member; wherein the first connecting member comprises a first connecting body, a plug-in portion protruding from the first connecting body, and a first protruding portion provided on an outer circumferential surface of the plug-in portion, the second connecting member is provided with a plug hole, a first recessed portion is provided on a hole wall of the plug hole, the first protruding portion has a first matching surface, the first recessed portion has a second matching surface for abutting against the first matching surface, the plug hole has a first side and a second side oppositely arranged along an axial direction of the plug hole, and the plug-in portion is inserted into the plug hole through the first side of the plug hole; along an extension direction of the plug-in portion away from the first connecting member, an area of the first matching surface gradually decreases; and along an axial direction of the plug hole and in a direction pointing to the first side of the plug hole, an area of the second matching surface gradually decreases.

2. The ultrasonic osteotome positioning structure of claim 1, wherein, along an extension direction of the plug-in portion away from the first connecting member, an area of the first matching surface gradually decreases; along an axial direction of the plug hole and in a direction pointing to the first side of the plug hole, an area of the second matching surface gradually decreases.

3. The ultrasonic osteotome positioning structure of claim 1, wherein, a first direction is defined as an extension direction of the first matching surface from the protruding portion towards the first connecting member, a second direction is defined as a direction parallel to an axis of the protruding portion, an angle between the first direction and the second direction is an acute angle; a reference surface is defined as a surface perpendicular to an axial direction of the plug-in portion, the plug-in portion has a first surface and a second surface oppositely arranged along the axial direction of the plug-in portion, the second surface is connected to the first connecting member, a normal projection of the first surface on the reference surface is a first edge line, a normal projection of the second surface on the reference surface is a second edge line, and the first edge line is located in the second edge line.

4. The ultrasonic osteotome positioning structure according to any one of claims 1 to 3, characterized in that the first matching surface and the second matching surface are both configured as circular arc surfaces.

5. The ultrasonic osteotome positioning structure according to any one of claims 1 to 3, characterized in that a plurality of first protruding portions are provided on an outer circumferential surface of the plug-in portion, and a plurality of first recessed portions are correspondingly provided on a hole wall of the plug hole.

6. The ultrasonic osteotome positioning structure of claim 5, wherein, a second recessed portion is defined between two adjacent first protruding portions along a circumferential direction of the plug-in portion, the second connecting member further comprises a plurality of second protruding portions provided on the hole wall of the plug hole and spaced apart along the circumferential direction, and the first recessed portion is defined between two adjacent second protruding portions along the circumferential direction; the second recessed portion has a third matching surface, and the second protruding portion has a fourth matching surface for abutting against the third matching surface; along an extension direction of the plug-in portion away from the first connecting member, an area of the third matching surface gradually increases. The fourth mating surface has an area that increases in a direction along the axis of the insertion hole and pointing to the first side of the insertion hole.

7. The ultrasonic osteotome positioning structure of claim 6, wherein, The first mating surface has an area that is larger than that of the third mating surface, and the second mating surface has an area that is larger than that of the fourth mating surface.

8. The ultrasonic osteotome positioning structure of claim 5, wherein, Two first protrusions adjacent to each other in the circumferential direction of the insertion portion define a second recess therebetween, and the second connecting member further comprises a plurality of second protrusions arranged at intervals along the circumferential direction of the insertion hole and provided on the hole wall of the insertion hole, two first recesses being defined between two second protrusions adjacent to each other in the circumferential direction; wherein two first connecting lines are defined between the first protrusion and two second recesses adjacent to each other in the circumferential direction, a first reference surface is defined as a surface parallel to both of the first connecting lines, a projection of the first mating surface on the first reference surface is a trapezoid, and / or two second connecting lines are defined between the second recess and two first protrusions adjacent to each other in the circumferential direction, a second reference surface is defined as a surface parallel to both of the second connecting lines, and a projection of the second mating surface on the second reference surface is a trapezoid.

9. The ultrasonic osteotome positioning structure according to any one of claims 1 to 3, characterized in that One of the first connecting member and the second connecting member is detachably connected with the reference member, and the other is rotatably connected with the shank portion.

10. The ultrasonic osteotome positioning structure according to any one of claims 1 to 3, characterized in that The connecting assembly further comprises a fastener, and a threaded hole is formed in the insertion portion and cooperates with the fastener, and the fastener is threadedly connected with the insertion portion via the threaded hole.

11. An ultrasonic osteotome device, comprising: The connecting assembly comprises: an ultrasonic osteotome positioning structure according to any one of claims 1 to 10; and an ultrasonic osteotome comprising the shank portion and the blade portion connected with each other, and the reference member is mounted on the shank portion.

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