Alveolar bone wall thickness measuring device and alveolar bone wall thickness measuring method

Abstract

The present invention provides an alveolar bone wall thickness measuring device and an alveolar bone wall thickness measuring method. The measuring device comprises: a handle, a connecting sleeve and a metal detector; the handle is provided with an inner cavity and a through hole communicating with the inner cavity; the connecting sleeve is detachably connected to the handle; the metal detector comprises a detection body and a circuit component; the circuit component is installed in the inner cavity of the handle; the detection body is rotatably inserted in the inner hole of the connecting sleeve, and is in conductive contact with the circuit component through the through hole. During measurement, the detection body and the drill bit of the implanter are respectively placed close to the inner and outer wall surfaces of the alveolar bone wall, and the detection body is used to sense the signal from the drill bit, and the signal is processed and amplified by the circuit component to output an electrical signal, and the thickness of the alveolar bone wall is measured according to the intensity of the output electrical signal. By adopting this scheme, the thickness of the alveolar bone wall can be measured quickly and accurately, and the thickness of the alveolar bone wall can be measured in real time while the drill bit is operating, thereby greatly reducing the risk of the alveolar bone wall being drilled through.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an alveolar bone wall thickness measuring device and an alveolar bone wall thickness measuring method implemented based on the alveolar bone wall thickness measuring device. Background Art

[0002] During the dental implant process, the oral implant needs to be implanted into the upper and lower jaws of the toothless part of the human body. After the wound heals, the denture is installed on the top of the oral implant. During implantation, a hole needs to be drilled in the alveolar bone with a drill, and then the oral implant is implanted in the hole. When drilling the alveolar bone, if the alveolar bone wall is drilled through, it will affect the combination of the oral implant and the alveolar bone wall and may also cause complications, which may eventually lead to implantation failure. Measuring the thickness of the alveolar bone wall can reduce the risk of the alveolar bone wall being drilled through.

[0003] At present, the alveolar bone wall thickness measurement device used is similar to a vernier caliper, which has a slow measurement speed and inaccurate measurement results. In addition, during the measurement process, a claw needs to be extended into the alveolar bone cavity, so the bone wall thickness cannot be measured while the drill is operating. If the bone wall thickness is stopped every time the tool is used to drill a certain depth, it will undoubtedly prolong the implantation time and increase the patient's pain. Therefore, the usual operation is to stop and measure after drilling for a period of time. During this period of drilling, the doctor can only roughly judge the bone wall thickness based on his experience. Therefore, the risk of drilling through the alveolar bone wall is still very high.

[0004] In view of this, how to further reduce the risk of drilling through the alveolar bone wall is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an alveolar bone wall thickness measuring device, comprising: a handle, a connecting sleeve and a metal detector; the handle is provided with an inner cavity and a through hole communicating with the inner cavity; the connecting sleeve is detachably connected to the handle; the metal detector comprises a detection body and a circuit component; the circuit component is installed in the inner cavity of the handle; the detection body is inserted into the inner hole of the connecting sleeve, passes through the through hole, extends into the inner cavity, and is in conductive contact with the circuit component; the detection body can rotate in the inner hole of the connecting sleeve.

[0006] In one embodiment, the detection body includes a probe, a pin and a connection socket, the probe and the pin are respectively connected to two ends of the connection socket, the connection socket is inserted into the inner hole of the connection sleeve, and the pin forms a conductive contact with the circuit.

[0007] In one embodiment, the probe includes a support arm and a detection ring, one end of the support arm is connected to the connecting seat, the other end of the support arm is bent into a hook shape, and the detection ring is connected to the bent end of the support arm.

[0008] In one embodiment, one of the inner circumferential surface of the connecting sleeve and the outer circumferential surface of the connecting seat is provided with a protrusion, and the other is provided with an annular groove, and the protrusion extends into the annular groove.

[0009] In one embodiment, an annular groove is provided on the outer circumferential surface of the connecting seat, an elastic ring is interference fit in the annular groove, the elastic ring protrudes from the outer circumferential surface of the connecting seat, and the protruding portion forms the protrusion.

[0010] In one embodiment, one end of the connecting sleeve is provided with an external thread, the through hole has a first hole section, the first hole section is provided with an internal thread, and the connecting sleeve is connected to the first hole section via threads.

[0011] In one embodiment, the through hole further has a second hole segment, the second hole segment is connected between the first hole segment and the inner cavity, the second hole segment includes one or more cavities, the pins are passed through the cavities one by one and are guided by the cavities.

[0012] In one embodiment, the circuit composition includes an output circuit, a storage circuit and a control circuit. The upper limit value of the electrical signal strength is pre-stored in the memory of the storage circuit. The controller of the control circuit is communicatively connected to an implanter that drills a cavity in the alveolar bone, and is used to control the implanter to stop when the electrical signal strength output by the output circuit reaches the pre-stored upper limit value of the electrical signal strength.

[0013] In one embodiment, the circuit composition also includes an alarm circuit and a display circuit, and the buzzer of the alarm circuit and the display of the display circuit are respectively used to issue a warning signal when the strength of the electrical signal output by the output circuit reaches a pre-stored upper limit value of the electrical signal strength.

[0014] In one embodiment, the metal detector is a self-excited inductive detector, an energy-consuming detector, a sonar inductive detector, or an ultrasonic inductive detector.

[0015] In addition, the present invention also provides a method for measuring the thickness of the alveolar bone wall, which is implemented based on the above-mentioned alveolar bone wall thickness measuring device and includes the following steps:

[0016] Extend the detection body of the metal detector of the alveolar bone wall thickness measuring device into the oral cavity so that it is closely attached to the outer side of the bone wall of the alveolar bone cavity;

[0017] Insert the drill bit of the implant machine into the alveolar bone cavity, making it close to the inner side of the bone wall of the alveolar bone cavity;

[0018] The detection body senses the signal from the drill bit, and the signal is processed and amplified by the circuit composition of the metal detector to output an electrical signal. The thickness of the alveolar bone wall is measured according to the intensity of the output electrical signal.

[0019] This solution can quickly and accurately measure the thickness of the alveolar bone wall. Moreover, since the detection body does not need to extend into the cavity of the alveolar bone, it will not affect the operation of the drill bit. Therefore, the thickness of the alveolar bone wall can be measured in real time while the drill bit is operating, thereby greatly reducing the risk of the alveolar bone wall being drilled through. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of a specific embodiment of the alveolar bone wall thickness measuring device provided by the present invention in an applied state;

[0021] Figure 2 for Figure 1 A schematic diagram of the detection body of the metal detector;

[0022] Figure 3 for Figure 1 A perspective view of the middle connecting sleeve;

[0023] Figure 4 for Figure 1 A perspective view of the middle handle, which contains the circuitry of a metal detector;

[0024] Figure 5 for Figure 1 Schematic diagram of the circuit composition.

[0025] The following are the descriptions of the reference numerals:

[0026] 1 handle, 11 through hole, 11a first hole section, 11b second hole section, 11c third hole section;

[0027] 2 connecting sleeve, 21 annular groove, 22 annular boss;

[0028] 31 detection body, 311 probe, 311a support arm, 311b detection ring, 312 pin, 313 connection seat, 313a annular groove, 313b elastic ring;

[0029] 32 circuit components;

[0030] 10 drill bit, 20 teeth, tarsal bone wall thickness. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] As shown in the figure, the alveolar bone wall thickness measuring device provided by the present invention (hereinafter referred to as the measuring device) includes: a handle 1, a connecting sleeve 2 and a metal detector.

[0033] The handle 1 is provided with an inner cavity, and one end thereof is provided with a through hole 11 communicating with the inner cavity.

[0034] The connecting sleeve 2 is detachably connected to the handle 1 .

[0035] The metal detector includes a detection body 31 and a circuit component 32, and the detection body 31 and the circuit component 32 are independently arranged.

[0036] The circuit component 32 is installed in the inner cavity of the handle 1. The detection body 31 is inserted into the inner hole of the connecting sleeve 2 and passes through the through hole 11 of the handle 1, extends into the inner cavity of the handle 1, and is in conductive contact with the circuit component 32. There is a gap between the detection body 31 and the inner hole of the connecting sleeve 2, so that the detection body 31 can rotate in the inner hole of the connecting sleeve 2.

[0037] The alveolar bone wall thickness measurement method provided by the present invention is implemented based on the above-mentioned measuring device, and specifically comprises the following steps:

[0038] Extend the detection body 31 of the metal detector of the measuring device into the oral cavity so that it is close to the outer side of the bone wall of the alveolar bone cavity (i.e., the side close to the lips);

[0039] Extend the drill bit 10 of the implantation machine into the alveolar bone cavity so that it is close to the inner side of the bone wall of the alveolar bone cavity;

[0040] The detection body 31 senses the signal from the drill bit through the alveolar bone wall. The signal is processed and amplified by the circuit component 32 of the metal detector and then output in the form of an electrical signal. The thickness t of the alveolar bone wall is measured based on the intensity of the output electrical signal.

[0041] The closer the drill bit is to the detection body 31, the stronger the output electrical signal is. Therefore, the strength of the electrical signal can reflect the distance between the drill bit and the detection body 31. The distance between the drill bit and the detection body 31 is the thickness of the alveolar bone wall. Therefore, the thickness of the alveolar bone wall can be measured based on the strength of the output electrical signal.

[0042] This method can quickly and accurately measure the thickness of the alveolar bone wall. Moreover, since the detection body 31 does not need to extend into the cavity of the alveolar bone, it will not affect the operation of the drill bit. Therefore, the thickness of the alveolar bone wall can be measured in real time while the drill bit is operating, thereby greatly reducing the risk of the alveolar bone wall being drilled through.

[0043] During the measurement process, as the measurement position changes, the angle of the detection body 31 needs to be frequently adjusted. In this solution, since there is a gap between the detection body 31 and the inner hole of the connecting sleeve 2, and the detection body 31 and the circuit component 32 are independently arranged, the detection body 31 can rotate in the inner hole of the connecting sleeve 2. Therefore, when adjusting the angle of the detection body 31, the angle at which the doctor holds the handle 1 does not need to be changed, which is more convenient for the doctor to operate.

[0044] After the operation is completed, the detection body 31 needs to be cleaned and disinfected to ensure hygiene. In this solution, since the connection sleeve 2 is detachably connected to the handle 1, and the detection body 31 and the circuit component 32 are independently arranged, the connection sleeve 2 together with the detection body 31 inserted therein can be removed from the handle 1 together, so that the problem of water ingress and short circuit of the circuit component 32 inside the handle 1 during the cleaning and disinfection process can be avoided.

[0045] Specifically, Figure 2 As shown, the detection body 31 includes a probe 311, a connection base 313 and a pin 312, and the probe 311 and the pin 312 are connected to the two ends of the connection base 313 respectively. Figure 1 In the assembled state, the connection seat 313 is inserted into the inner hole of the connection sleeve 2, and the pin 312 passes through the through hole 11 of the handle 1, extends into the inner cavity of the handle 1, and is in conductive contact with the circuit component 32.

[0046] Continue to refer Figure 2 The probe 311 includes a support arm 311a and a detection ring 311b. One end of the support arm 311a is connected to the connection seat 313. The other end of the support arm 311a is bent into a hook shape with a bending angle of nearly 90 degrees. The detection ring 311b is connected to the bent end of the support arm 311a.

[0047] One end of the support arm 311a is bent into a hook shape, and during the measurement process, the support arm 311a can be hooked on the lips, and the lips are used to support the support arm 311a, which is more convenient for doctors to operate. The detection ring 311b is connected to the bent end of the support arm 311a, so that the detection ring 311b can be more easily fitted and contacted with the outer side of the alveolar bone wall.

[0048] Continue to refer Figure 2 , a protrusion is provided on the outer circumference of the connection seat 313. In the illustrated scheme, the protrusion is formed by an elastic ring 313b tightly sleeved on the outer circumference of the connection seat 313. In detail, an annular groove 313a is provided on the outer circumference of the connection seat 313, and the elastic ring 313b is embedded in the annular groove 313a and has an interference fit with the annular groove 313a. The elastic ring 313b protrudes from the outer circumference of the connection seat 313, and the protruding part is the protrusion.

[0049] Since the protrusion is elastic, it can alleviate the wear and noise generated by the rotation of the detection body 31 in the inner hole of the connecting sleeve 2, and does not affect the insertion of the connecting seat 313 and the connecting sleeve 2. It should be noted that in actual implementation, the protrusion can also be set as a rigid structure. When it is set as a rigid structure, in order to realize the insertion of the connecting seat 313 and the connecting sleeve 2, the connecting sleeve 2 needs to be made into a split matching structure.

[0050] refer to Figure 3 An annular groove 21 is provided on the inner circumferential surface of the connecting sleeve 2, and the protrusion is located in the annular groove 21. There is a gap between the protrusion and the annular groove 21. This will not affect the rotation of the connecting seat 313 relative to the connecting sleeve 2, but also limit the axial position of the connecting seat 313, so that the entire detection body 31 will not fall out of the inner hole of the connecting sleeve 2.

[0051] It should be noted that in actual implementation, the annular groove 21 may also be provided on the outer circumferential surface of the connecting seat 313 , and the protrusion may be provided on the inner circumferential surface of the connecting sleeve 2 .

[0052] Continue to refer Figure 3 , one end of the connecting sleeve 2 is provided with an external thread, and the connecting sleeve 2 is connected to the through hole 11 at one end of the handle 1 through the thread. In this way, the connecting sleeve 2 and the handle 1 are detachably connected by means of the through hole 11 of the handle 1, so that no other connection structure is required. Of course, in actual implementation, other connection structures can also be used to achieve the detachable connection between the connecting sleeve 2 and the handle 1. For example, a clamping ring can be provided at one end of the handle 1, and a clamping protrusion adapted to the clamping ring can be provided at one end of the connecting sleeve 2, so that the two are buckled together through the clamping ring and the clamping protrusion.

[0053] Continue to refer Figure 3 An annular boss 22 is provided on the outer periphery of the connecting sleeve 2, and a concave-convex structure is provided on the outer peripheral surface of the annular boss 22. In this way, when disassembling the connecting sleeve 2, force can be applied to the outer peripheral surface of the annular boss, and the concave-convex structure thereon can be used to generate a larger friction force, thereby saving more effort.

[0054] refer to Figure 4The handle 1 is in the shape of an elliptical cylinder as a whole, which is convenient for holding. One end of the through hole 11 of the handle 1 is connected to the inner cavity, and the other end is connected to the end surface of the handle 1. The through hole 11 includes a first hole segment 11a, a second hole segment 11b and a third hole segment 11c. The first hole segment 11a is provided with an internal thread, which is adapted to the external thread of the above-mentioned connecting seat 313. The second hole segment 11b includes one or more cavities, and the number of cavities is consistent with the number of pins 312, and the pins 312 are inserted into the cavities one by one. The cavity and the pin 312 are clearance-matched, and the pin 312 can move axially in the cavity. At the same time, the cavity can guide the pin 312. The third hole segment 11c is located between the first hole segment 11a and the second hole segment 11b. The diameter of the third hole segment 11c is larger than the diameter of the first hole segment 11a and also larger than the diameter of the second hole segment 11b (referring to the sum of the diameters of all its pores). With this arrangement, even if a small amount of water flows into the through hole 11, the water will stay in the third hole segment 11c and will not invade the inner cavity.

[0055] refer to Figure 5 The metal detector can be a self-excited induction detector, an energy consumption detector, a sonar induction detector, an ultrasonic induction detector, and other common metal detectors on the market. The circuit composition of the metal detector includes a detection circuit, a differential circuit, an amplification circuit, and an output circuit, which are common configurations of metal detectors on the market.

[0056] In this solution, a storage circuit and a control circuit are added on the basis of the above circuit. The upper limit value of the electric signal strength is pre-stored in the memory of the storage circuit. The controller of the control circuit is connected to the implanter for controlling the relay of the implanter to disconnect and stop the drill when the electric signal strength output by the output circuit reaches the pre-stored upper limit value of the electric signal strength. In this way, when there is a risk of drilling through the alveolar bone wall, the drill can be actively intervened to stop the operation and avoid the risk in time.

[0057] This solution also adds an alarm circuit and a display circuit based on the above circuit. When the electrical signal strength output by the output circuit is close to the pre-stored electrical signal strength upper limit, the buzzer of the alarm circuit emits an alarm sound, and the display of the display circuit displays an alarm screen, thereby reminding the doctor to operate with caution.

[0058] The above circuits are all realized by connecting different electrical components in series, in parallel or in series and in parallel. When the functions of the circuits are known, how to arrange the circuits to achieve the corresponding functions is well known to those skilled in the art.

[0059] The alveolar bone wall thickness measuring device and the alveolar bone wall thickness measuring method provided by the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An alveolar bone wall thickness measuring device, characterized in that: include: A handle (1), a connecting sleeve (2) and a metal detector; the handle (1) is provided with an inner cavity and a through hole (11) communicating with the inner cavity; the connecting sleeve (2) is detachably connected to the handle (1); the metal detector comprises a detection body (31) and a circuit component (32); the circuit component (32) is installed in the inner cavity of the handle (1); the detection body (31) is inserted into the inner hole of the connecting sleeve (2), passes through the through hole (11), extends into the inner cavity, and is in conductive contact with the circuit component (32); the detection body (31) is capable of rotating in the inner hole of the connecting sleeve (2); the metal detector measures the thickness of the alveolar bone wall by measuring the distance between the drill bit and the detection body (31); The detection body (31) comprises a probe (311), a plug pin (312) and a connection seat (313); the probe (311) and the plug pin (312) are respectively connected to two ends of the connection seat (313); the connection seat (313) is inserted into the inner hole of the connection sleeve (2); the plug pin (312) is in conductive contact with the circuit component (32); The inner circumference of the connecting sleeve (2) is provided with an annular groove (21), the outer circumference of the connecting seat (313) is provided with an annular groove (313a), an elastic ring (313b) is interference-fitted into the annular groove (313a), the elastic ring (313b) protrudes from the outer circumference of the connecting seat (313), the protruding portion forms a protrusion, and the protrusion extends into the annular groove (21).

2. The alveolar bone wall thickness measuring device according to claim 1, characterized in that: The probe (311) comprises a support arm (311a) and a detection ring (311b); one end of the support arm (311a) is connected to the connection seat (313); the other end of the support arm (311a) is bent into a hook shape; and the detection ring (311b) is connected to the bent end of the support arm (311a).

3. The alveolar bone wall thickness measuring device according to claim 1, characterized in that: One end of the connecting sleeve (2) is provided with an external thread, the through hole (11) has a first hole section (11a), the first hole section (11a) is provided with an internal thread, and the connecting sleeve (2) is connected to the first hole section (11a) via the thread.

4. The alveolar bone wall thickness measuring device according to claim 3, characterized in that: The through hole (11) also has a second hole segment (11b), the second hole segment (11b) is connected between the first hole segment (11a) and the inner cavity, the second hole segment (11b) includes one or more cavities, and the pins (312) are inserted into the cavities one by one and guided by the cavities.

5. The alveolar bone wall thickness measuring device according to claim 1, characterized in that: The circuit composition (32) includes an output circuit, a storage circuit and a control circuit. The upper limit value of the electric signal strength is pre-stored in the memory of the storage circuit. The controller of the control circuit is connected to the implanter for drilling a cavity in the alveolar bone and is used to control the implanter to stop when the strength of the electric signal output by the output circuit reaches the pre-stored upper limit value of the electric signal strength.

6. The alveolar bone wall thickness measuring device according to claim 5, characterized in that: The circuit composition (32) also includes an alarm circuit and a display circuit. The buzzer of the alarm circuit and the display of the display circuit are respectively used to send out a warning signal when the strength of the electrical signal output by the output circuit reaches the pre-stored upper limit value of the electrical signal strength.

7. The alveolar bone wall thickness measuring device according to any one of claims 1 to 6, characterized in that: The metal detector is a self-excited induction detector, an energy-consuming detector, a sonar induction detector or an ultrasonic induction detector.

8. A method for measuring the thickness of an alveolar bone wall, implemented based on the alveolar bone wall thickness measuring device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Extending the detection body (31) of the metal detector of the alveolar bone wall thickness measuring device into the oral cavity so that it is closely attached to the outer side of the bone wall of the alveolar bone cavity; Insert the drill bit of the implant machine into the alveolar bone cavity, making it close to the inner side of the bone wall of the alveolar bone cavity; The detection body (31) senses the signal from the drill bit, and the signal is processed and amplified by the circuit component (32) of the metal detector to output an electrical signal. The thickness of the alveolar bone wall is measured based on the intensity of the output electrical signal.

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