Multipurpose planting transfer rod and use method thereof

Abstract

The invention discloses a multi-purpose planting transfer rod and a use method thereof. The multi-purpose planting transfer rod comprises a rod body; the connecting mechanism is arranged at the lower end of the rod body; the impression fixing part is arranged on the circumferential surface of the rod body and is used for fixing an impression material; the connecting mechanism comprises a connecting sleeve, an outer ball sleeve, an inner ball, a connector, an angle adjusting groove and a locking assembly, and the locking assembly is used for extruding the inner ball to the inner wall of the outer ball sleeve in the radial direction to generate enough friction force so as to fix the inclination angle of the connector. Through the nested design of the inner ball sleeve and the outer ball sleeve, the rod body is allowed to freely incline within the range of 0-50 degrees, the clinically common inclination angle requirement is met, the ejector rod radially extrudes the contact face of the inner ball sleeve and the outer ball sleeve through the locking mechanism, enough friction force is generated to fix the inclination angle, and angle deviation caused by impression pressure is avoided. The limitation that a traditional transfer rod is only suitable for a vertical implant is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of oral medical instruments, and in particular to a multi-purpose implant transfer rod and a method of using the same. Background Art

[0002] In clinical use, the transfer rod is connected to the implant instead of the abutment thread, and the tooth model is connected to the transfer rod to evaluate the position and angle of the implant.

[0003] In existing technology, each implant typically uses a fixed-size transfer rod. Because different implants connect to the abutment in different ways, the corresponding transfer rod structure also varies. Furthermore, each prosthesis must be tailored to specific needs and must therefore be precisely and perfectly fitted to the specific implant. To ensure the accuracy of the manufactured denture, it is crucial to transfer the exact position and angle of the implant from the patient's mouth to the plaster model.

[0004] When the axis of the implant is aligned with the axis of the retrieval path as impressed from the mouth, the exact position and angulation of the implant can be transferred from the patient's mouth to the plaster model using a conventional transfer post. When the patient does not have enough bone to place the implant in the specific desired location, the tip of the implant can be slightly tilted to keep the connector in the desired location, but tilted. When the implant is tilted, meaning the axis of the implant is not aligned with the axis of the retrieval path as impressed from the mouth, transferring the exact position and angulation of the tilted implant to the plaster model is very difficult, resulting in inaccurate implant position and angulation, damage to the impression material, and the inability to produce an accurate denture.

[0005] Therefore, it is necessary to provide a multi-purpose implant transfer rod and a method of using the same to solve the above technical problems. Summary of the Invention

[0006] The present invention overcomes the deficiencies of the prior art and provides a multi-purpose implant transfer rod and a method for using the same.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a multi-purpose implant transfer rod, comprising:

[0008] Rod body;

[0009] A connecting mechanism, the connecting mechanism being arranged at the lower end of the rod body;

[0010] An impression fixing portion, the impression fixing portion being arranged on the circumferential surface of the rod body and being used for fixing the impression material;

[0011] Wherein, the connecting mechanism includes:

[0012] Connecting sleeve; the connecting sleeve is arranged at the lower end of the rod body;

[0013] An outer ball sleeve, the outer ball sleeve being arranged at the lower end of the connecting sleeve;

[0014] an inner ball, the inner ball being nested inside the outer ball sleeve;

[0015] A connector, which is arranged on the surface of the inner ball and moves at the bottom of the outer ball sleeve;

[0016] An angle adjustment groove is provided on the surface of the outer ball sleeve near the lower end, and the connector can be vertically tilted in the angle adjustment groove with the center of the inner ball as the center, with the tilt angle ranging from 0° to 50°;

[0017] Also included is a locking assembly, which is used to radially press the inner ball toward the inner wall of the outer ball sleeve to generate sufficient friction to fix the tilt angle of the connector;

[0018] Wherein, the connector is detachably connected to the implant connection end or the base.

[0019] In a preferred embodiment of the present invention, the outer surface of the inner ball is provided with a micro-convex dot array, and the inner wall of the outer ball sleeve is sprayed with a PTFE coating.

[0020] In a preferred embodiment of the present invention, the inner wall of the outer ball sleeve is provided with a plurality of NdFeB magnetic rings corresponding to inclination angles of 0°, 15°, 30° and 45° respectively; the surface of the inner ball is provided with a soft magnetic ring, which has opposite polarity to the NdFeB magnetic ring, so as to generate adsorption force when the connector is rotated to the target angle.

[0021] In a preferred embodiment of the present invention, the connector is a threaded rod or threaded sleeve of different specifications, adapted to implant connection ends or abutments of different specifications.

[0022] In a preferred embodiment of the present invention, the locking mechanism includes:

[0023] A locking ring, the locking ring being arranged on the outer surface of the connecting sleeve through a threaded connection;

[0024] a rotating ring, rotatably arranged on the top of the locking ring;

[0025] Connecting rods are configured in a plurality of ways, and the plurality of connecting rods are arranged on the inner side of the rotating ring;

[0026] A push rod is arranged inside the connecting sleeve, and the top end of the push rod is connected to the plurality of connecting rods;

[0027] The lower end of the push rod is in an arc shape that matches the outer shape of the inner ball. The lower end of the push rod abuts against the inner ball. By rotating the locking ring, the connecting rod is driven to move axially along the connecting sleeve, thereby radially squeezing the inner ball toward the inner wall of the outer ball sleeve.

[0028] In a preferred embodiment of the present invention, the outer surface of the connecting sleeve is provided with a movable groove for the connecting rod to move, the movable groove extends along the axial direction of the connecting sleeve, and the connecting rod passes through the movable groove and slides axially in the movable groove.

[0029] In a preferred embodiment of the present invention, a protrusion is provided at the center position of the lower end of the push rod, and a plurality of depressions matching the shape of the protrusion are provided on the top surface of the inner ball away from the connecting head; the depressions are evenly distributed along the top surface of the inner ball, and within the inclination range of 0° to 50° of the inner ball, there is at least one depression for every inclination angle of 1-2°.

[0030] In a preferred embodiment of the present invention, the shape of the protrusion is 1 / 5 to 1 / 3 of a sphere.

[0031] A method for using a multi-purpose implant transfer rod, based on any of the multi-purpose implant transfer rods described above, comprises the following steps:

[0032] S1, detachably connecting the connector to the implant connection end or the abutment via threads;

[0033] S2, rotating the inner ball to a target tilt angle corresponding to the angle adjustment groove of the outer ball sleeve, wherein the target tilt angle range is 0° to 50°;

[0034] S3, radially pressing the inner ball toward the inner wall of the outer ball sleeve through the locking assembly to fix the relative angle between the connector and the rod body;

[0035] S4. Fix the impression material through the impression fixing part to transfer the exact position and angle of the implant to the plaster model.

[0036] In a preferred embodiment of the present invention, before S1, a connecting mechanism with a connector of suitable specifications is selected, and the connecting mechanism is detachably connected to the lower end of the rod body. At this time, the connector is aligned with the axis of the rod body at a vertical angle without tilt.

[0037] The present invention solves the defects existing in the background technology and has the following beneficial effects:

[0038] (1) The present invention provides a multi-purpose implant transfer rod. Through the nested design of the inner ball and outer ball sleeve, the rod body can be freely tilted within the range of 0° to 50°, covering the common clinical tilt angle requirements. A locking mechanism is used to radially squeeze the contact surface between the inner ball and the outer ball sleeve, generating sufficient friction to fix the tilt angle and avoid angular deviation caused by impression pressure. This overcomes the limitation of traditional transfer rods that are only suitable for vertical implants.

[0039] (2) The present invention radially squeezes the contact surface between the inner ball and the outer ball sleeve by matching the protrusion of the push rod with the depression of the inner ball, and utilizes the high friction characteristics of the micro-convex dot array and the PTFE coating to maintain the inclination angle of the rod body stable when no external force is provided, thereby avoiding angular deviation caused by gravity or mold pressure.

[0040] (3) The present invention reduces the sliding friction coefficient by coordinating the micro-convex dot array on the surface of the inner ball with the PTFE coating on the inner wall of the outer ball sleeve, allowing the inner ball and the inner wall of the sleeve to form a high-friction contact surface, generating self-locking friction during rotation, and increasing the stability of adjusting the tilt angle of the rod body. This avoids the shaking of the rod body when adjusting the tilt angle due to the contact between the inner ball and the outer ball sleeve being too smooth, thereby maintaining the stability of the angle and position of the rod body.

[0041] (4) The inner wall of the outer ball sleeve of the present invention is embedded with a neodymium iron boron magnetic ring, which generates an adsorption force with the soft magnetic ring on the surface of the inner ball, providing tactile positioning prompts to assist in quickly aligning to commonly used angles.

[0042] (5) The rod body of the present invention is detachably connected to the connecting mechanism, and the connecting head is a threaded rod or sleeve of different specifications, which is adapted to the mainstream implant / abutment interface and a variety of implant systems, thereby reducing the doctor's preoperative preparation time and inventory costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments described in the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts.

[0044] Figure 1 It is a three-dimensional structural diagram of a preferred embodiment of the present invention;

[0045] Figure 2 This is a three-dimensional structural diagram of a connecting sleeve according to a preferred embodiment of the present invention;

[0046] Figure 3 This is a diagram showing the internal structure of a connecting sleeve according to a preferred embodiment of the present invention;

[0047] Figure 4This is a three-dimensional structural diagram of the inner sphere of a preferred embodiment of the present invention;

[0048] Figure 5 This is a diagram showing how to use the multi-purpose implant transfer rod according to a preferred embodiment of the present invention.

[0049] In the figure: 1. Rod body; 2. Connecting mechanism; 21. Connecting sleeve; 22. Outer ball sleeve; 221. Angle adjustment groove; 23. Inner ball; 24. Connecting head; 25. Locking assembly; 251. Locking ring; 252. Rotating ring; 253. Connecting rod; 254. Push rod; 255. Movable groove; 256. Protrusion; 257. Recess; 3. Mold fixing part. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0052] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as limiting the scope of protection of this application.

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0054] like Figure 1As shown, the present invention provides a multi-purpose implant transfer rod, which is used to perform impression operations on implants in the oral cavity, and transfer the information in the oral cavity and the position of the implant to the plaster model outside the mouth. The transfer rod includes a rod body 1, a connecting mechanism 2 and an impression fixing part 3; the connecting mechanism 2 is arranged at the lower end of the rod body 1, and is used to connect the implant / abutment and adjust the inclination angle of the implant and the rod body 1; the impression fixing part 3, the impression fixing part 3 is arranged on the circumferential surface of the rod body 1, and is used to fix the impression material.

[0055] like Figure 2 As shown, the connecting mechanism 2 includes a connecting sleeve 21, an outer ball sleeve 22, an inner ball 23, a connecting head 24, an angle adjustment groove 221 and a locking assembly 25, wherein the connecting head 24 is detachably connected to the implant connecting end or the base, that is, the connecting mechanism 2 is detachably connected to the rod body 1.

[0056] The connecting sleeve 21 is arranged at the lower end of the rod body 1. The connecting sleeve 21 is a cylindrical sleeve, and a threaded rod is provided at the upper end of the connecting sleeve 21, and a threaded hole is provided at the corresponding position of the lower end of the rod body 1. The connecting sleeve 21 is detachably connected to the rod body 1 through a threaded connection, and is adapted to connectors 24 of different specifications to adapt to a variety of planting systems.

[0057] In this embodiment, the outer ball sleeve 22 is arranged at the lower end of the connecting sleeve 21, the inner ball 23 is nested inside the outer ball sleeve 22, the connecting head 24 is arranged on the surface of the inner ball 23, and is movable at the lower part of the outer ball sleeve 22, and the angle adjustment groove 221 is opened on the surface of the outer ball sleeve 22 near the lower end. The connecting head 24 can be vertically tilted with the center of the inner ball 23 as the center of the circle in the angle adjustment groove 221. The tilt angle range is 0°~50°, covering the common clinical tilt angle requirements.

[0058] In this embodiment, the outer surface of the inner ball 23 is provided with a micro-convex dot array, which is laser engraved with 0.1mm high honeycomb micro-convex dots, and the inner wall of the outer ball sleeve 22 is sprayed with a 10μm thick PTFE coating. The surface roughness of the PTFE coating is made Ra≤0.8μm by ultrasonic spraying or plasma treatment, forming an optimal contact state with the micro-convex dot array, reducing the sliding friction coefficient, and allowing the inner ball 23 to form a high-friction contact surface with the inner wall of the sleeve. Self-locking friction force is generated during rotation, increasing the stability of adjusting the inclination angle of the rod body 1, avoiding the excessively smooth contact between the inner ball 23 and the outer ball sleeve 22, which causes the rod body 1 to shake easily when adjusting the inclination angle, and keeping the angle and position of the rod body 1 stable.

[0059] It also includes a locking assembly 25, which is used to radially press the inner ball 23 toward the inner wall of the outer ball sleeve 22 to generate sufficient friction to fix the tilt angle of the connector 24;

[0060] like Figure 3 、 Figure 4As shown, the locking mechanism includes: a locking ring 251 arranged on the outer surface of the connecting sleeve 21 through a threaded connection, a rotating ring 252 rotatably arranged on the top of the locking ring 251, a plurality of connecting rods 253 arranged on the inner side of the rotating ring 252, and a push rod 254 arranged inside the connecting sleeve 21, the top of the push rod 254 is fixedly connected to the plurality of connecting rods 253; wherein, the rotating ring 252 and the locking ring 251 rotate relative to each other, the lower end of the push rod 254 is an arc shape matching the outer shape of the inner ball 23, and the lower end of the push rod 254 abuts the inner ball 23, and the axial position of the locking ring 251 on the connecting sleeve 21 is adjusted by rotating the locking ring 251, thereby driving the connecting rod 253 to move axially along the connecting sleeve 21, thereby moving the push rod 254 downward to radially squeeze the inner ball 23 toward the inner wall of the outer ball sleeve 22.

[0061] In this embodiment, the outer surface of the connecting sleeve 21 is provided with a movable groove 255 for the connecting rod 253 to move. The movable groove 255 extends along the axial direction of the connecting sleeve 21. The connecting rod 253 passes through the movable groove 255 and slides axially in the movable groove 255.

[0062] A protrusion 256 is provided at the center position of the lower end of the top rod 254 in this embodiment, and the protrusion 256 is in the shape of a 1 / 5 to 1 / 3 sphere; a plurality of recesses 257 matching the shape of the protrusion 256 are provided on the top surface of the inner ball 23 away from the connecting head 24; the recesses 257 are evenly distributed along the top surface of the inner ball 23, and in the range of 0° to 50° of the inclination of the inner ball 23, there is at least one recess 257 for every 1-2° inclination angle. Furthermore, there is partial overlap between the recesses 257 to lock more inclination angles of the rod body 1 to the maximum extent.

[0063] The present invention radially squeezes the contact surface between the inner ball 23 and the outer ball sleeve 22 by matching the protrusion 256 of the push rod 254 with the recess 257 of the inner ball 23, and utilizes the high friction characteristics of the micro-convex dot array and the PTFE coating to maintain the inclination angle of the rod body 1 stable when no external force is provided, thereby avoiding angular deviation caused by gravity or mold pressure.

[0064] In this embodiment, the inner wall of the outer ball sleeve 22 is provided with several NdFeB magnetic rings, which are not shown in the figure, corresponding to the inclination angles of 0°, 15°, 30° and 45° respectively; the surface of the inner ball 23 is provided with a soft magnetic ring, which has opposite polarity to the NdFeB magnetic ring, so as to generate adsorption force when the connector 24 is rotated to the target angle, provide tactile positioning prompts, and assist in quickly aligning to commonly used angles.

[0065] like Figure 5 As shown, the present invention also provides a method for using a multi-purpose implant transfer rod, comprising the following steps:

[0066] S1. Connect the connector 24 to the implant connection end or the abutment through threads.

[0067] S2. Rotate the inner ball 23 to the corresponding target tilt angle in the angle adjustment groove 221 of the outer ball sleeve 22. The target tilt angle range is 0° to 50°.

[0068] S3. After reaching the target tilt angle, rotate the locking ring 251 to move the locking ring 251 downward, driving the rotating ring 252, the connecting rod 253 and the push rod 254 to move downward synchronously. The rotating ring 252 does not rotate relative to the connecting sleeve 21, so that the lower end of the push rod 254 abuts the inner ball 23, and then radially squeezes toward the inner wall of the outer ball sleeve 22, and uses friction and the front and back of the protrusion 256 and the recess 257 to fix the relative angle between the connecting head 24 and the rod body 1.

[0069] S4. Fix the impression material through the impression fixing part 3 and transfer the exact position and angle of the implant to the plaster model.

[0070] In this embodiment, before step S1, a connecting mechanism 2 with a connecting head 24 of suitable specifications is first selected, and the connecting mechanism 2 is detachably connected to the lower end of the rod body 1. At this time, the connecting head 24 is aligned with the axis of the rod body 1 at a vertical angle without tilt, which facilitates the rotation of the rod body 1 to connect the connecting head 24 to the implant connection end or the base through threads.

[0071] The present invention provides a versatile implant transfer rod and its use method. Through the nested design of the inner ball 23 and outer ball sleeve 22, the rod body 1 can freely tilt within a range of 0° to 50°, covering common clinical tilt angle requirements. A locking mechanism causes the push rod 254 to radially compress the contact surface between the inner ball 23 and the outer ball sleeve 22, generating sufficient friction to maintain a fixed tilt angle and prevent angular deviation caused by impression pressure. This overcomes the limitation of traditional transfer rods, which are only suitable for vertical implants.

[0072] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the content of the specification and must be determined according to the scope of the claims.

Claims

1. A multi-purpose planting transfer rod, characterized in that: include: Rod body; A connecting mechanism, the connecting mechanism being arranged at the lower end of the rod body; An impression fixing portion, the impression fixing portion being arranged on the circumferential surface of the rod body and being used for fixing the impression material; Wherein, the connecting mechanism includes: Connecting sleeve; the connecting sleeve is arranged at the lower end of the rod body; An outer ball sleeve, the outer ball sleeve being arranged at the lower end of the connecting sleeve; an inner ball, the inner ball being nested inside the outer ball sleeve; A connector, which is arranged on the surface of the inner ball and moves at the bottom of the outer ball sleeve; An angle adjustment groove is provided on the surface of the outer ball sleeve near the lower end, and the connector can be vertically tilted in the angle adjustment groove with the center of the inner ball as the center, with the tilt angle ranging from 0° to 50°; Also included is a locking assembly, which is used to radially press the inner ball toward the inner wall of the outer ball sleeve to fix the inclination angle of the connector; Wherein, the connector is detachably connected to the implant connection end or the base.

2. The multi-purpose implant transfer rod according to claim 1, characterized in that: The outer surface of the inner ball is provided with a micro-convex dot array, and the inner wall of the outer ball sleeve is sprayed with a PTFE coating.

3. The multi-purpose implant transfer rod according to claim 1, characterized in that: The inner wall of the outer ball sleeve is provided with several NdFeB magnetic rings, corresponding to the inclination angles of 0°, 15°, 30° and 45° respectively; the surface of the inner ball is provided with a soft magnetic ring, which has opposite polarity to the NdFeB magnetic ring to generate adsorption force when the connector is rotated to the target inclination angle.

4. The multi-purpose implant transfer rod according to claim 1, characterized in that: The connector is a threaded rod or threaded sleeve of different specifications, adapted to implant connection ends or bases of different specifications.

5. The multi-purpose implant transfer rod according to claim 1, characterized in that: The locking mechanism comprises: A locking ring, the locking ring being arranged on the outer surface of the connecting sleeve through a threaded connection; a rotating ring, rotatably arranged on the top of the locking ring; Connecting rods are configured in a plurality of ways, and the plurality of connecting rods are arranged on the inner side of the rotating ring; A push rod is arranged inside the connecting sleeve, and the top end of the push rod is connected to the plurality of connecting rods; The lower end of the push rod is in an arc shape that matches the outer shape of the inner ball. The lower end of the push rod abuts against the inner ball. By rotating the locking ring, the connecting rod is driven to move axially along the connecting sleeve, thereby radially squeezing the inner ball toward the inner wall of the outer ball sleeve.

6. The multi-purpose implant transfer rod according to claim 5, characterized in that: The outer surface of the connecting sleeve is provided with a movable groove for the connecting rod to move. The movable groove extends along the axial direction of the connecting sleeve. The connecting rod passes through the movable groove and slides axially in the movable groove.

7. The multi-purpose implant transfer rod according to claim 5, characterized in that: A protrusion is provided at the center position of the lower end of the push rod, and a plurality of depressions matching the shape of the protrusion are provided on the top surface of the inner ball away from the connecting head; the depressions are evenly distributed along the top surface of the inner ball, and within the inclination range of 0° to 50° of the inner ball, there is at least one depression corresponding to every inclination angle of 1-2°.

8. The multi-purpose implant transfer rod according to claim 7, characterized in that: The shape of the protrusion is 1 / 5 to 1 / 3 of a sphere.

9. A method for using a multi-purpose implant transfer rod, based on the multi-purpose implant transfer rod according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, connecting the connector to the implant connection end or the abutment through threads; S2, rotating the inner ball to a target tilt angle corresponding to the angle adjustment groove of the outer ball sleeve, wherein the target tilt angle range is 0° to 50°; S3, radially pressing the inner ball toward the inner wall of the outer ball sleeve through the locking assembly to fix the relative angle between the connector and the rod body; S4. Fix the impression material through the impression fixing part to transfer the exact position and angle of the implant to the plaster model.

10. The method for using the multi-purpose implant transfer rod according to claim 9, characterized in that: Before S1, a connecting mechanism with a connector of suitable specifications is selected, and the connecting mechanism is detachably connected to the lower end of the rod body. At this time, the connector is aligned with the axis of the rod body at a vertical angle without tilt.

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