Device for measuring stability of implant in alveolar bone

Abstract

The utility model discloses a device for measuring the stability of an implant in an alveolar bone. The device comprises a connecting part, a supporting part and a magnetic part, the connecting part is used for fixing the device with an implant; one end of the supporting part is connected with the connecting part, and the other end of the supporting part is connected with the magnetic part; the magnetic part comprises a cylindrical magnetic part and a shell; the shell comprises a bottom surface and a side wall; the lower end part of the side wall is connected with the periphery of the bottom surface; the magnetic component is arranged in a cavity formed by the bottom surface and the side wall; at least three grooves are formed in the upper end of the side wall, and the grooves are formed in the length direction of the side wall. The magnetic part in the device is not prone to falling off, and the risk brought to a patient in the using process is reduced.

Description

Technical Field

[0001] This utility model relates to a device for measuring the stability of alveolar bone implants. Background Technology

[0002] With social development and the continuous improvement of living standards, people have placed higher demands on the chewing ability of their teeth. Patients with tooth defects or dental diseases often have implants placed in the alveolar bone, along with abutments and dentures, to restore their chewing function. However, over time, implants may become loose, making it difficult to accurately assess the degree of loosening. While X-ray imaging of the alveolar bone can determine the stability of implants, the accuracy is limited. This is because X-rays only provide a frontal view; if the implant is tilted or wobbled, it's difficult to accurately determine the degree of loosening based solely on the X-ray image.

[0003] CN114948314A discloses a sensing device for detecting the stability of implanted alveolar bone implants, comprising an implant, a resonator, and a threaded connection section. The top of the implant is connected to the resonator, and the bottom of the implant is connected to the threaded connection section. The implant is shaped like a Morse taper, and the top of the resonator encapsulates a spherical permanent magnet material. The resonance frequency of the resonator varies with bone healing stiffness, ranging from 3500Hz to 8500Hz. However, the magnetic field distribution around this device is defective, affecting the accuracy of the assessment of implant stability.

[0004] CN220404163U discloses a three-in-one temporary implant abutment, including an upper connecting portion for connecting to a crown and a lower connecting portion for connecting to the implant. The outer surface of the upper connecting portion has a roughened area for bonding the crown. A magnetic element is provided at the upper end of the upper connecting portion, which is used in conjunction with an ISQ measuring instrument to measure implant stability. At least two asymmetrically arranged scanning recognition surfaces are provided on the outer surface of the upper connecting portion. The magnetic element is ring-shaped. The magnetic element on this temporary abutment is prone to detachment, posing a safety hazard. Furthermore, the ring-shaped magnetic element has poor magnetic field uniformity, affecting the accuracy of the measurement.

[0005] CN220385207U discloses a three-in-one implant carrier, including a rod. The upper side of the rod has a clamping groove, and the lower end has a connecting part detachably connected to the implant. A magnetic element is located at the upper end of the rod, used to cooperate with an ISQ (Intense Pulsation) measuring instrument to measure the stable phase of the implant. At least two asymmetrically arranged scanning recognition parts are located on the upper side of the rod, used to cooperate with an intraoral scanner for scanning and impression taking. A slot is provided on the upper surface of the rod, and the magnetic element is fixedly installed in the slot. The slot is annular or circular in shape, and the shape of the magnetic element is the same as the shape of the slot. This device encloses the magnetic element in the slot, which weakens the magnetic field strength of the magnetic element, reducing the sensitivity and accuracy of the measurement. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a device for measuring the stability of alveolar bone implants. The magnetic component in this device is less prone to dislodgement, reducing potential risks to patients during use. Furthermore, the exposed area of ​​the magnetic component is large, improving sensitivity and measurement accuracy. Even further, the magnetic field distribution is relatively uniform, further enhancing measurement accuracy.

[0007] The above objectives are achieved through the following technical solutions.

[0008] This invention provides a device for measuring the stability of alveolar bone implants, comprising a connecting part, a supporting part, and a magnetic part;

[0009] The connecting part is configured to fix the device to the implant;

[0010] One end of the support portion is connected to the connecting portion, and the other end of the support portion is connected to the magnetic portion;

[0011] The magnetic part includes a cylindrical magnetic component and a housing;

[0012] The outer shell includes a bottom surface and a side wall; the lower end of the side wall is connected to the outer periphery of the bottom surface, and the side wall and the bottom surface form a cavity;

[0013] The magnetic component is disposed in the cavity formed by the bottom surface and the sidewall;

[0014] At least three grooves are provided at the upper end of the sidewall, and the grooves are arranged along the length of the sidewall.

[0015] According to the device of this utility model, preferably, the grooves are configured to be at least 6, and the multiple grooves are evenly arranged around the axial direction of the outer shell.

[0016] According to the device of this utility model, preferably, the height of the magnetic component is 2.5-8 mm and the diameter is 0.8-3.5 mm; the shape of the cavity matches the shape of the magnetic component.

[0017] According to the device of this utility model, preferably, r1-r0 is 0.2-0.8mm, and H1-H0 is 0.1-0.5mm;

[0018] Where r1 represents the outer diameter of the shell, r0 represents the diameter of the magnetic component, H1 represents the height of the shell, and H0 represents the height of the magnetic component.

[0019] According to the device of this utility model, preferably, the groove does not penetrate the side wall of the outer shell.

[0020] According to the device of this utility model, preferably, the length of the groove is 0.5 to 3 mm and the depth is 0.1 to 1 mm.

[0021] According to the device of this utility model, preferably, the support part includes a support rod and a connecting frustum, one end of the support rod is connected to the bottom surface of the outer shell, the other end of the support rod is connected to one bottom surface of the connecting frustum, and the other bottom surface of the connecting frustum is connected to the connecting part.

[0022] According to the device of this utility model, preferably, the support rod is a cylinder; the diameter of the connecting part is smaller than the diameter of the support rod; the bottom surface of the connecting frustum with a smaller surface area is connected to the connecting part, and the bottom surface of the connecting frustum with a larger surface area is connected to the support rod.

[0023] According to the device of this utility model, preferably, the connecting part is provided with threads, and the connecting part is fixed to the implant by means of threaded connection.

[0024] According to the device of this utility model, preferably, the connecting part includes a connecting part body and a connecting head; one end of the connecting part body is connected to the connecting head, and the other end of the connecting part body is connected to the bottom surface of the outer shell; the thread is provided on the connecting part body; the connecting part body is a cylinder, and the outer surface of the connecting head has an outwardly convex arc surface.

[0025] The magnetic component of this invention can be stably embedded in the cavity of the outer shell and has a large exposed area, which reduces the safety hazards to users caused by accidental detachment of the magnetic component, improves the sensitivity of measurement, generates induction within an appropriate range, and reduces radiation to users. Attached Figure Description

[0026] Figure 1 This invention relates to a device for measuring the stability of implants within the alveolar bone.

[0027] The attached figures are labeled as follows:

[0028] 11-Connecting part body; 12-Connecting head; 21-Support rod; 22-Connecting frustum; 311-Side wall; 313-Groove; 32-Magnetic component. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0030] The device for measuring the stability of alveolar bone implants according to this invention includes a connecting part, a supporting part, and a magnetic part. The components are described in detail below.

[0031] <Connecting Part>

[0032] The connecting part of this invention is designed to fix a device for measuring the stability of an intra-alveolar implant to the implant. The shape of the connecting part can match the shape of the groove inside the implant. The connecting part may be threaded. The groove of the implant may also have matching threads, allowing the device of this invention to be fixed to the implant via a threaded connection.

[0033] In some embodiments, the connecting part includes a connecting part body and a connecting head.

[0034] One end of the connecting part body is connected to the connecting head. The other end of the connecting part body is connected to the support part. The connecting part body can be cylindrical. Threads are provided on the connecting part body. The threads can be located close to the connecting head.

[0035] The outer surface of the connector can have a convex arc. The connector can be hemispherical in shape.

[0036] <Support Section>

[0037] In this invention, one end of the support portion is connected to the connecting portion. The other end of the support portion is connected to the magnetic portion.

[0038] In some embodiments, the support includes a support rod and a connecting frustum.

[0039] One end of the support rod is connected to the connecting frustum, and the other end is connected to the magnetic part. Specifically, the other end of the support rod is connected to the bottom surface of the outer casing. The support rod can be cylindrical. The diameter of the support rod can be larger than the diameter of the connecting part body.

[0040] The connecting frustum has a small end face and a large end face. The small end face refers to the bottom surface of the connecting frustum with a smaller surface area. The large end face refers to the bottom surface of the connecting frustum with a larger surface area. The large end face of the connecting frustum is connected to one end of the support rod. The small end face of the connecting frustum is connected to the connecting part. Specifically, the small end face is connected to the body of the connecting part.

[0041] <Magnetic Section>

[0042] The magnetic part of this invention includes a shell and a cylindrical magnetic component.

[0043] The outer casing includes sidewalls and a bottom surface. The lower end of the sidewall is connected to the outer perimeter of the bottom surface. The sidewalls and the bottom surface form a cavity. The projection of the bottom surface onto the horizontal plane can be circular. The diameter of the bottom surface is larger than the diameter of the support rod.

[0044] The upper end of the sidewall has at least three grooves; preferably, at least four grooves; more preferably, at least six grooves. In some embodiments, six grooves are provided. The grooves are arranged along the length direction of the sidewall. The length direction of the sidewall refers to the direction from the upper end of the sidewall to the bottom surface. The multiple grooves are evenly arranged around the axial direction of the outer casing. The length of the groove can be 0.5 to 3 mm; preferably 1 to 2 mm; more preferably 1.5 to 1.8 mm. The depth of the groove can be 0.1 to 1 mm; preferably 0.3 to 0.8 mm; more preferably 0.5 to 0.6 mm. The grooves do not penetrate the sidewall. This allows the magnetic component to be securely embedded in the cavity of the outer casing, while also emitting a magnetic field of appropriate strength and a uniformly distributed magnetic field.

[0045] The shape of the cavity matches the shape of the magnetic component. The diameter of the cavity can be 0.8–3.5 mm; preferably 1.5–3 mm; more preferably 2.05–2.3 mm. The height of the cavity can be 2.5–8 mm; preferably 3–7 mm; more preferably 5–6 mm.

[0046] The height of the outer casing can be 3–9 mm; preferably 4–8 mm; more preferably 5.35–6.5 mm. The outer diameter of the outer casing can be 1–4 mm; preferably 2–3.5 mm; more preferably 2.56–2.8 mm.

[0047] r1-r0 are 0.2-0.8 mm; preferably 0.3-0.6 mm; more preferably 0.5-0.55 mm. r1 represents the outer diameter of the outer casing. r0 represents the diameter of the magnetic component.

[0048] H1-H0 is 0.1-0.5 mm; preferably 0.2-0.4 mm; more preferably 0.3-0.35 mm. H1 represents the height of the outer casing, and H0 represents the height of the magnetic component.

[0049] The magnetic component of this invention is a cylinder. This allows it to be stably and securely embedded in the cavity of the outer shell, reducing the risk of detachment, and also improves the uniformity of the magnetic field.

[0050] The magnetic component is disposed in the cavity formed by the bottom surface and side walls of the outer casing. The diameter of the magnetic component can be 0.8–3.5 mm; preferably 1.5–3 mm; more preferably 2.05–2.3 mm. The height of the magnetic component can be 2.5–8 mm; preferably 3–7 mm; more preferably 5–6 mm. The magnetic component can be a neodymium iron boron magnet.

[0051] The magnetic component of this invention can be stably and securely embedded in the cavity of the outer shell, and has a high exposed area, reducing the danger to the user caused by the magnetic component falling out and improving the accuracy of the measurement. The magnetic component of this invention is cylindrical, which generates a uniformly distributed magnetic field, further improving measurement accuracy. The magnetic part of this invention has a small volume, and the space in which the generated magnetic field is small, approximately 3-5 mm around the magnetic component. This satisfies the detection requirements while reducing the harmful radiation from the magnet to the human body.

[0052] Example 1

[0053] like Figure 1 As shown, the device for measuring the stability of alveolar bone implants in this embodiment includes a connecting part, a supporting part, and a magnetic part.

[0054] The connector is used to fix the device to the implant. The shape of the connector matches the shape of the groove provided in the implant. The connector includes a connector body 11 and a connector head 12. The connector head 12 is connected to one end of the connector body 11. The connector body 11 is provided with threads. The threads are located near the connector head 12. These threads match the threads provided in the groove within the implant, thereby fixing the connector to the implant. The connector body 11 is cylindrical. The outer surface of the connector head 12 is a convex arc surface. The connector head 12 is hemispherical in shape.

[0055] The support portion includes a support rod 21 and a connecting frustum 22. The support rod 21 is cylindrical. The diameter of the support rod 21 is larger than the diameter of the connecting portion body 11. The small end face of the connecting frustum 22 is connected to the end of the connecting portion body 11 away from the connector 12. The large end face of the connecting frustum 22 is connected to one end of the support rod 21. The small end face refers to the bottom surface of the connecting frustum 22 with a smaller surface area. The large end face refers to the bottom surface of the connecting frustum 22 with a larger surface area.

[0056] The magnetic part includes a housing and a cylindrical magnetic component 32.

[0057] The outer casing includes a bottom surface (not shown) and side walls 311. The lower end of the side wall 311 is connected to the outer periphery of the bottom surface. The side wall 311 and the bottom surface form a cavity. Six grooves 313 are formed at the upper end of the side wall 311. The grooves 313 are arranged along the length direction of the side wall 311. The multiple grooves 313 are evenly arranged around the axial direction of the outer casing. The length direction of the side wall 311 refers to the direction from the upper end of the side wall 311 to the bottom surface. The height of the outer casing is 5.35 mm, and the outer diameter of the outer casing is 2.56 mm. The length of the groove 313 is 1.50 mm, and the depth is 0.50 mm. The projection of the bottom surface onto the horizontal plane is circular. The diameter of the bottom surface is larger than the diameter of the support rod 21.

[0058] The magnetic component 32 is disposed within a cavity formed by the bottom surface and side wall 311 of the housing. The magnetic component 32 has a height of 5.00 mm and a diameter of 2.05 mm. The shape of the cavity matches the shape of the magnetic component 32. This allows part of the magnetic component 32 to be exposed outside the housing, improving the sensitivity of the test. The magnetic component 32 can be a neodymium iron boron magnet.

[0059] This utility model is not limited to the above-described embodiments. Any modifications, improvements, or substitutions that can be conceived by those skilled in the art without departing from the essential content of this utility model fall within the scope of this utility model.

Claims

1. A device for measuring the stability of alveolar bone implants, characterized in that, The device includes a connecting part, a supporting part, and a magnetic part; The connecting part is configured to fix the device to the implant; One end of the support portion is connected to the connecting portion, and the other end of the support portion is connected to the magnetic portion; The magnetic part includes a cylindrical magnetic component and a housing; The outer shell includes a bottom surface and a side wall; the lower end of the side wall is connected to the outer periphery of the bottom surface, and the side wall and the bottom surface form a cavity; The magnetic component is disposed in the cavity formed by the bottom surface and the sidewall; At least three grooves are provided at the upper end of the sidewall, and the grooves are arranged along the length of the sidewall.

2. The apparatus according to claim 1, characterized in that, The grooves are configured to be at least 6, and the grooves are evenly arranged around the axial direction of the outer shell.

3. The apparatus according to claim 1, characterized in that, The magnetic component has a height of 2.5–8 mm and a diameter of 0.8–3.5 mm; the shape of the cavity matches the shape of the magnetic component.

4. The apparatus according to claim 1, characterized in that, r1-r0 is 0.2-0.8mm, H1-H0 is 0.1-0.5mm; Where r1 represents the outer diameter of the shell, r0 represents the diameter of the magnetic component, H1 represents the height of the shell, and H0 represents the height of the magnetic component.

5. The apparatus according to claim 1, characterized in that, The groove does not penetrate the sidewall of the housing.

6. The apparatus according to claim 1, characterized in that, The groove has a length of 0.5–3 mm and a depth of 0.1–1 mm.

7. The apparatus according to claim 1, characterized in that, The support includes a support rod and a connecting frustum. One end of the support rod is connected to the bottom surface of the outer shell, and the other end of the support rod is connected to one bottom surface of the connecting frustum. The other bottom surface of the connecting frustum is connected to the connecting part.

8. The apparatus according to claim 7, characterized in that, The support rod is a cylinder; the diameter of the connecting part is smaller than the diameter of the support rod; the bottom surface of the connecting frustum with a smaller surface area is connected to the connecting part, and the bottom surface of the connecting frustum with a larger surface area is connected to the support rod.

9. The apparatus according to any one of claims 1 to 8, characterized in that, The connecting part is provided with threads, and the connecting part is fixed to the implant by means of threaded connection.

10. The apparatus according to claim 9, characterized in that, The connecting part includes a connecting part body and a connecting head; one end of the connecting part body is connected to the connecting head, and the other end of the connecting part body is connected to the bottom surface of the outer shell; the thread is provided on the connecting part body; the connecting part body is a cylinder, and the outer surface of the connecting head has an outwardly convex arc surface.

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