An oral surgical instrument

Abstract

This utility model discloses an oral surgical instrument, including an operating handle, an operating rod, and a blade. The operating handle has a first end and a second end arranged opposite to each other. The operating rod includes a first segment, a second segment, and a third segment connected in sequence, which are coplanar. The first segment is connected to the first end and is coaxial. The second segment is set at a first angle to the first segment, where the first angle is a1, 130°≤a1≤150°. The second segment is set at a second angle to the third segment, where the second angle is a2, 95°≤a2≤115°. The blade is detachably connected to the end of the third segment opposite to the second segment. The operating rod has a bent structure, which avoids obstruction from adjacent teeth, making the field of vision during surgery wider. The bent structure of the operating rod conforms to the contour of the teeth in the patient's oral cavity, which is conducive to controlling the position of the blade during surgery and improves the accuracy of use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an oral surgical instrument. Background Technology

[0002] In alveolar ridge preservation surgery, the posterior tooth region is often difficult to operate due to the narrow space and complex anatomical structure (such as adjacent teeth, buccal and lingual soft tissues, etc.) and the limited angle of oral surgical instruments.

[0003] In adults, the average width of the dental arch in the maxillary posterior region is 55-65 mm, and the average width in the mandible is 50-60 mm. The operating space on the buccal and lingual sides of the posterior teeth is also relatively narrow (average 6-8 mm). In related techniques, oral surgical instruments are mostly straight-handled or have a single curved structure, which cannot effectively avoid obstruction from adjacent teeth, causing obstruction of the surgical field and reducing the accuracy of the procedure. Utility Model Content

[0004] The purpose of this invention is to at least solve the problem of how to improve operational accuracy during use. This purpose is achieved through the following technical solution: This utility model discloses an oral surgical instrument, which includes: An operating handle having a first end and a second end that are arranged in opposite directions; An operating lever comprising a first segment, a second segment, and a third segment connected in sequence, the first segment, the second segment, and the third segment being coplanar; the first segment being connected to a first end and coaxially arranged; the second segment being set at a first included angle with the first segment, the first included angle being a1, 130°≤a1≤150°; the first segment and the second segment being transitioned by a first arc, the radius of the first arc being r1, 8mm≤r1≤10mm; the second segment and the third segment being set at a second included angle, the second included angle being a2, 95°≤a2≤115°; the third segment and the second segment being transitioned by a second arc, the radius of the second arc being r2, 6mm≤r2≤8mm. The blade is detachably connected to the end of the third segment opposite to the second segment.

[0005] According to the present invention, the oral surgical instrument has a bent structure by setting the operating rod into a first, second, and third connected segment and setting the angle between adjacent segments. The bent structure avoids obstruction by adjacent teeth, making the field of vision during the operation wider. The bent structure of the operating rod is adapted to the contour of the teeth in the patient's oral cavity, which is conducive to controlling the position of the blade during the operation, thereby improving the accuracy and safety of use.

[0006] In addition, the oral surgical instrument according to this utility model may also have the following additional technical features: In some embodiments of this utility model, the length of the operating lever is L, wherein 35mm≤L≤40mm.

[0007] In some embodiments of this utility model, the operating handle is a cylinder with a diameter of d, wherein 10mm≤d≤12mm.

[0008] In some embodiments of this utility model, the operating handle includes a chamfered section, which is disposed at the first end and coaxially connected to the first segment. The diameter of the end of the chamfered section connected to the first segment is greater than the diameter of the chamfered section away from the first segment.

[0009] In some embodiments of this utility model, at least a portion of the outer peripheral surface of the operating handle in the region between the chamfered section and the second section is provided with an anti-slip structure along the axial direction of the operating handle.

[0010] In some embodiments of this utility model, the anti-slip structure is a mesh structure formed on the outer peripheral surface of the operating handle.

[0011] In some embodiments of this utility model, the depth of the mesh structure is h, wherein 0.1mm≤d≤0.3mm.

[0012] In some embodiments of this utility model, the third segment is provided with a slot at one end opposite to the second segment, and the blade is detachably disposed in the slot.

[0013] In some embodiments of this utility model, along the radial direction of the third segment, the slot includes a first part and a second part disposed opposite to each other. The first part has a protruding structure on the side facing the second part, and the second part has an elastic structure on the side facing the first part. The protruding structure is a polygonal structure. The blade has an embedding hole adapted to the protruding structure. The protruding structure is embedded in the embedding hole, and the elastic structure abuts against the surface of the blade to limit the blade to be installed in the slot.

[0014] In some embodiments of this utility model, the second part is rotatable relative to the third segment. The second part has a first state and a second state that can be switched with each other. In the first state, the second part and the first part surround the slot, and the blade is confined in the slot. In the second state, the second part rotates relative to the third segment and avoids the position opposite to the first part. Along the radial direction of the third segment, the blade can separate from the protruding structure.

[0015] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the structure of an oral surgical instrument according to some embodiments of the present invention is shown; Figure 2 for Figure 1 A schematic diagram of a partial structure of an oral surgical instrument shown in the figure; Figure 3 for Figure 1 A cross-sectional view of the oral surgical instrument shown at point AA; Figure 4 for Figure 1 A schematic diagram of the blade structure of the oral surgical instrument shown; Figure 5 A schematic diagram of the structure of an oral surgical instrument according to some embodiments of the present invention is shown; Figure 6 for Figure 5 A schematic diagram of a partial structure of an oral surgical instrument shown in the figure; Figure 7 for Figure 6 The diagram shows the structure of the second part of the oral surgical instrument in the second state.

[0017] The attached figures are labeled as follows: 100. Oral surgical instruments; 10. Operating handle; 11. Chamfered section; 12. Anti-slip structure; 20. Control lever; 21. First section; 22. Second section; 23. Third section; 231. First part; 2311. Protruding structure; 232. Second part; 2321. Elastic structure; 233. Slot; 30. Blade; 31. Embedded hole; a1, the first included angle; a2, the second included angle. Detailed Implementation

[0018] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0019] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0020] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0021] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0022] like Figures 1 to 7 As shown, according to an embodiment of the present invention, an oral surgical instrument 100 is proposed, which includes an operating handle 10, an operating rod 20, and a blade 30.

[0023] Specifically, the operating handle 10 is a rod-shaped structure with a first end and a second end arranged in opposite directions. The operating lever 20 is a bent rod-shaped structure, comprising a first segment 21, a second segment 22, and a third segment 23 connected in sequence, and the first segment 21, the second segment 22, and the third segment 23 are arranged in the same plane.

[0024] The first segment 21 is connected to the first end and is coaxially arranged. The second segment 22 is set at a first included angle a1 with the first segment 21, where 130°≤a1≤150°. The first segment 21 and the second segment 22 are connected by a first arc with a radius of r1, where 8mm≤r1≤10mm. The second segment 22 and the third segment 23 are set at a second included angle a2, where 95°≤a2≤115°. The third segment 23 is connected to the second segment 22 by a second arc with a radius of r2, where 6mm≤r2≤8mm. The blade 30 is detachably connected to the end of the third segment 23 that is away from the second segment 22.

[0025] According to the oral surgical instrument 100 of this utility model, the operating rod 20 is configured with a first segment 21, a second segment 22, and a third segment 23 connected together, and the angle between adjacent segments is set to make the operating rod 20 have a bent structure. In use, the blade 30 is fixed to the third segment 23, and the end of the operating rod 20 with the blade 30 is inserted into the patient's oral cavity through the mouth. The bent structure avoids obstruction from adjacent teeth, resulting in a wider field of vision during the surgery. The bent structure of the operating rod 20 conforms to the contour of the teeth in the patient's oral cavity, facilitating control of the blade 30's position during the surgery, thereby improving accuracy and safety during use.

[0026] It should be understood that the first segment 21 and the third segment 23 are respectively connected to the opposite ends of the second segment 22. Along the radial direction of the second segment 22, the first segment 21 and the third segment 23 are located on opposite sides of the second segment 22, that is, the first segment 21 and the third segment 23 extend only on opposite sides of the radial direction of the second segment 22.

[0027] In addition, the length of the second segment 22 is greater than the lengths of the first segment 21 and the third segment 23 respectively. In this application, the length of the first segment 21 is approximately equal to the length of the third segment 23. The blade 30 is fixed on the end of the third segment 23 that is away from the second segment 22. In this way, the third segment 23 can carry the blade 30 to avoid the position of the adjacent teeth, so that the blade 30 has sufficient stroke to reach the affected area (such as the posterior tooth area in the oral cavity).

[0028] It should be noted that the first segment 21 and the second segment 22 are set at a first included angle a1, and the angle is set to 130°≤a1≤150°. This setting allows the end of the second segment 22 connected to the first segment 21 to be raised upwards, so that the end of the third segment 23 connected to the second segment 22 is raised upwards simultaneously. This facilitates the end of the third segment 23 away from the second segment 22, carrying the blade 30, to avoid obstruction by teeth such as anterior teeth, allowing the blade 30 to enter the desired position (e.g., the posterior tooth region in the oral cavity). The specific value of a1 can be 130°, 135°, 140°, 145°, or 150°.

[0029] The first segment 21 and the second segment 22 are connected by a first arc, which makes the connection between the first segment 21 and the second segment 22 smooth, reduces the risk of scratches to the patient during use, and improves safety. The radius r1 of the first arc can be 8mm, 8.5mm, 9mm, 9.5mm, or 10mm.

[0030] In addition, the first segment 21 and the second segment 22 can be an integral structure, or they can be connected and fixed by welding or other methods.

[0031] The third segment 23 and the second segment 22 are positioned at a second included angle a2, with a setting of 95°≤a2≤115°. This setting allows the end of the third segment 23 facing away from the second segment 22 to tilt downwards, so that the blade 30 can reach the required position during the procedure (e.g., the posterior tooth region in the oral cavity) after avoiding adjacent teeth. The specific value of a2 can be 95°, 100°, 105°, 110°, or 115°.

[0032] The second segment 22 and the third segment 23 are connected by a second circular arc, which makes the connection between the second segment 22 and the third segment 23 smooth, reduces the risk of scratches to the patient during use, and improves safety. The radius r2 of the second circular arc can be 6mm, 6.5mm, 7mm, 7.5mm, or 8mm.

[0033] In addition, the third segment 23 and the second segment 22 can be an integral structure, or they can be connected and fixed by welding or other methods.

[0034] Furthermore, the operating lever 20 can be a metal component or a non-metallic component. In this application, the operating lever 20 is a metal component, for example, a titanium alloy component. This improves the structural strength of the operating lever 20 and reduces the possibility of deformation.

[0035] In some embodiments of this utility model, the length of the operating lever 20 is L, wherein 35mm≤L≤40mm.

[0036] Specifically, based on the usage environment of the oral surgical instrument 100 (the average space in the posterior tooth region of the oral cavity is within the range of 7-9mm for the width of the posterior tooth crown and 4-6mm for the height of the posterior tooth crown), in this application, the length L of the operating rod 20 is set to 35mm≤L≤40mm. This allows the operating rod 20 to accurately deliver the blade 30 to the usage area, reducing the possibility of the blade 30 over-extending and thus further improving the safety of use.

[0037] It should be understood that the length L of the operating lever 20 can be 35mm, 36mm, 37mm, 38mm, 39mm, or 40mm.

[0038] In addition, the radial cross-section of the operating lever 20 is circular, which helps to improve the structural strength of the operating lever 20 and reduce the deformation of the operating lever 20 during use.

[0039] In some embodiments of this utility model, the operating handle 10 is a cylinder with a diameter of d, wherein 10mm≤d≤12mm.

[0040] Specifically, during use, the operator holds the operating handle 10 in a pen-like manner to improve operational stability. The operating handle 10 is designed as a cylinder, and the diameter d of the cylinder is set to 10mm ≤ d ≤ 12mm. This improves operator comfort during use, facilitates manipulation of the blade 30 position, and ultimately enhances operational accuracy.

[0041] It should be understood that the diameter d of the cylinder can be 10mm, 10.5mm, 11mm, 11.5mm, or 12mm.

[0042] In some embodiments of this utility model, the operating handle 10 includes a chamfered section 11, which is located at the first end and coaxially connected to the first section 21. The diameter of the end of the chamfered section 11 connected to the first section 21 is greater than the diameter of the chamfered section 11 away from the first section 21.

[0043] Specifically, by setting the chamfered section 11 to accommodate the pen-like way of use during operation, the operator's grip comfort during operation is further improved, and the position of the blade 30 is effectively controlled, thereby improving the positional accuracy of the blade 30.

[0044] In some embodiments of this utility model, at least a portion of the outer peripheral surface of the operating handle 10 located between the chamfered section 11 and the second section 22 is provided with an anti-slip structure 12 along the axial direction of the operating handle 10.

[0045] Specifically, by setting up an anti-slip structure 12, the operator's grip during use is improved, the risk of the operating handle 10 slipping is reduced, and the safety during use is further improved.

[0046] It should be noted that the anti-slip structure 12 can be a silicone sleeve fitted on the operating handle 10, or it can be an anti-slip structure 12 (such as a mesh structure) set on the outer peripheral surface of the operating handle 10.

[0047] In some embodiments of this utility model, the anti-slip structure 12 is a mesh structure formed on the outer peripheral surface of the operating handle 10.

[0048] Specifically, the anti-slip structure 12 is set as a mesh structure on the operating handle 10. In this way, the structure is simple and the anti-slip effect can be improved.

[0049] It should be noted that the operating handle 10 can be made of metal or non-metal. For example, if the operating handle 10 is made of metal, a textured structure can be created on the outer peripheral surface of the operating handle 10 by laser etching.

[0050] In some embodiments of this utility model, the depth of the mesh structure is d, wherein 0.1mm≤d≤0.3mm.

[0051] Specifically, by setting the depth h of the textured structure to 0.1mm≤d≤0.3mm, the textured structure can have sufficient depth, thereby achieving a better anti-slip effect.

[0052] It should be noted that the spacing between the textures of the mesh structure is 1mm-1.4mm, and the specific values ​​can be 1mm, 1.1mm, 1.2mm, 1.3mm, and 1.4mm.

[0053] In some embodiments of this utility model, the third segment 23 is provided with a slot 233 at one end away from the second segment 22, and the blade 30 is detachably disposed in the slot 233.

[0054] Specifically, during use, the blade 30 is fixed in the slot 233 of the third segment 23, and the operating handle 10 controls the operating rod 20, causing the third segment 23 of the operating rod 20 to carry the blade 30 to the surgical position. By making the blade 30 and the slot 233 a detachable structure, the blade 30 can be replaced, allowing the operating handle 10 and the operating rod 20 to be reused after sterilization, thereby effectively reducing the cost of surgery.

[0055] It should be noted that the slot 233 is a gap opened at the end of the third segment 23 away from the second segment 22. The length of the gap is less than the length of the third segment 23, and the gap is connected to the outer peripheral surface of the third segment 23 along the radial direction of the third segment 23.

[0056] In some embodiments of this utility model, along the radial direction of the third segment 23, the slot 233 includes a first part 231 and a second part 232 disposed opposite to each other. The first part 231 has a protruding structure 2311 on the side facing the second part 232, and the second part 232 has an elastic structure 2321 on the side facing the first part 231. The protruding structure 2311 is a polygonal structure. The blade 30 has an insertion hole 31 that matches the protruding structure 2311. The protruding structure 2311 is embedded in the insertion hole 31, and the elastic structure 2321 abuts against the surface of the blade 30 so that the blade 30 is limited and installed in the slot 233.

[0057] Specifically, when the blade 30 is installed, the portion of the blade 30 with the insertion hole 31 is placed within the slot 233, so that the protrusion 2311 passes through the insertion hole 31, and the elastic structure 2321 abuts against the side of the blade 30 facing away from the first portion 231. The cooperation between the protrusion 2311 and the insertion hole 31 effectively limits the movement of the blade 30 relative to the operating lever 20, reducing the likelihood of movement. Simultaneously, the elastic structure 2321 also limits the blade 30 from another direction, further improving the limiting effect and enhancing the fixing strength and stability of the blade 30.

[0058] It should be understood that during assembly, the blade 30 can be elastically deformed by an external force, so that the part of the blade 30 with the insertion hole 31 is inserted into the slot 233. When the insertion hole 31 reaches the position of the protrusion 2311, the elastic structure 2321 restores its elastic deformation and drives the insertion hole 31 to be fitted onto the protrusion 2311, thereby locking the blade 30.

[0059] It should be noted that the elastic structure 2321 is a silicone pad, wherein the Shore hardness of the elastic structure 2321 is 40A-60A and the compression ratio is 10%-20%.

[0060] In some embodiments of this utility model, such as Figures 5 to 7 As shown, the second part 232 is rotatable relative to the third segment 23. The second part 232 has a first state and a second state that can be switched between each other. In the first state, the second part 232 and the first part 231 surround the slot 233, and the blade 30 is confined in the slot 233. In the second state, the second part 232 rotates relative to the third segment and avoids the position opposite to the first part 231. Along the radial direction of the third segment 23, the blade 30 can separate from the protruding structure 2311.

[0061] Specifically, the second part 232 is rotatably connected to the third section 23 via a pivot. By setting the third section 23, the ease of assembly and disassembly of the blade 30 can be improved.

[0062] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An oral surgical instrument, characterized in that, The oral surgical instruments include: An operating handle having a first end and a second end that are arranged in opposite directions; An operating lever comprising a first segment, a second segment, and a third segment connected in sequence, the first segment, the second segment, and the third segment being coplanar; the first segment being connected to a first end and coaxially arranged; the second segment being set at a first included angle with the first segment, the first included angle being a1, 130°≤a1≤150°; the first segment and the second segment being transitioned by a first arc, the radius of the first arc being r1, 8mm≤r1≤10mm; the second segment and the third segment being set at a second included angle, the second included angle being a2, 95°≤a2≤115°; the third segment and the second segment being transitioned by a second arc, the radius of the second arc being r2, 6mm≤r2≤8mm. The blade is detachably connected to the end of the third segment opposite to the second segment.

2. The oral surgical instrument according to claim 1, characterized in that, The length of the operating lever is L, where 35mm≤L≤40mm.

3. The oral surgical instrument according to claim 1, characterized in that, The operating handle is a cylinder with a diameter of d, where 10mm ≤ d ≤ 12mm.

4. The oral surgical instrument according to claim 1, characterized in that, The operating handle includes a chamfered section, which is located at the first end and coaxially connected to the first segment. The diameter of the end of the chamfered section connected to the first segment is greater than the diameter of the chamfered section away from the first segment.

5. The oral surgical instrument according to claim 4, characterized in that, Along the axial direction of the operating handle, at least a portion of the outer peripheral surface of the operating handle in the region between the chamfered section and the second section is provided with an anti-slip structure.

6. The oral surgical instrument according to claim 5, characterized in that, The anti-slip structure is a textured structure formed on the outer periphery of the operating handle.

7. The oral surgical instrument according to claim 6, characterized in that, The depth of the mesh structure is h, where 0.1mm≤d≤0.3mm.

8. The oral surgical instrument according to any one of claims 1 to 7, characterized in that, The third segment has a slot at one end opposite to the second segment, and the blade is detachably mounted in the slot.

9. The oral surgical instrument according to claim 8, characterized in that, Along the radial direction of the third segment, the slot includes a first part and a second part disposed opposite to each other. The first part has a protruding structure on the side facing the second part, and the second part has an elastic structure on the side facing the first part. The protruding structure is a polygonal structure. The blade has an embedding hole adapted to the protruding structure. The protruding structure is embedded in the embedding hole, and the elastic structure abuts against the surface of the blade to limit the blade to be installed in the slot.

10. The oral surgical instrument according to claim 9, characterized in that, The second part is rotatable relative to the third segment. The second part has a first state and a second state that can switch between each other. In the first state, the second part and the first part surround the slot, and the blade is confined in the slot. In the second state, the second part rotates relative to the third segment and avoids the position opposite to the first part. Along the radial direction of the third segment, the blade can separate from the protruding structure.

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