CN219578861U - Bone strength measuring instrument - Google Patents
Bone strength measuring instrument Download PDFInfo
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- CN219578861U CN219578861U CN202320349059.6U CN202320349059U CN219578861U CN 219578861 U CN219578861 U CN 219578861U CN 202320349059 U CN202320349059 U CN 202320349059U CN 219578861 U CN219578861 U CN 219578861U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a bone strength measuring instrument, which comprises: a handle; an instrument connector connected to one end of the handle, the instrument connector adapted to connect with an orthopaedic surgical instrument; the stress detection device is arranged in the handle and is used for detecting at least one of force and moment applied to the instrument joint; and the power supply device is arranged in the handle and is electrically connected with the stress detection device. The bone strength measuring instrument provided by the embodiment of the utility model has the advantages of accurate measurement, convenience in operation and the like.
Description
Technical Field
The utility model relates to the technical field of medical instrument manufacturing, in particular to a bone strength measuring instrument.
Background
As the population ages, the incidence of osteoporosis increases year by year, which leads to a rapid rise in the risk of osteoporotic fractures. Bone strength is an important influencing factor in the formulation of an osteoporotic fracture surgical scheme and in the selection of a treatment strategy, and therefore accurate acquisition of the bone strength of a patient is of great importance.
Related art methods for obtaining bone strength include dual energy X-ray absorptiometry, which indirectly reflects bone strength levels by measuring bone mineral density, but only accounts for 60% -80% of the bone strength changes, and the use of dual energy X-ray absorptiometry, which also suffers from bone size, osteophyte formation, facet joint degeneration and aortic calcification, may give false negative results, and quantitative ultrasound, which is a principle that the propagation velocity of sound waves through a more dense, more elastic bone is higher than the frequency of sound waves through a weaker bone and more amplitude is lost, by which the propagation velocity of sound waves through a bone reflects the relationship of bone microstructure, bone geometry and bone strength. Quantitative ultrasound, however, is primarily aimed at the radius and calcaneus, with poor accuracy in reflecting changes in spinal or hip bone strength.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a bone strength measuring instrument which has the advantages of accurate measurement, convenient operation and the like.
To achieve the above object, according to an embodiment of the present utility model, there is provided a bone strength measuring instrument including: a handle; an instrument connector connected to one end of the handle, the instrument connector adapted to connect with an orthopaedic surgical instrument; the stress detection device is arranged in the handle and is used for detecting at least one of force and moment applied to the instrument joint; and the power supply device is arranged in the handle and is electrically connected with the stress detection device.
The bone strength measuring instrument provided by the embodiment of the utility model has the advantages of accurate measurement, convenience in operation and the like.
In addition, the bone strength measuring instrument according to the above embodiment of the present utility model may have the following additional technical features:
according to one embodiment of the utility model, the force detection means are at least for detecting an axial force of the instrument joint.
According to one embodiment of the utility model, the instrument attachment is provided on the handle in a unidirectional rotation.
According to one embodiment of the utility model, the instrument attachment is provided on the handle in a unidirectional rotation by means of a ratchet mechanism.
According to one embodiment of the utility model, the force detection means are at least for detecting a rotational moment to which the instrument joint is subjected.
According to one embodiment of the utility model, the force sensing device comprises a sensor for sensing at least one of a force and a moment experienced by the instrument joint and generating an analog signal, and a signal conversion device electrically connected to the sensor for converting the analog signal into a digital signal.
According to one embodiment of the present utility model, the bone strength measuring instrument further comprises a wireless communication device, and the wireless communication device is electrically connected with the power supply device and the stress detection device, respectively.
According to one embodiment of the utility model, the power supply device is a battery.
According to one embodiment of the utility model, the bone strength measuring instrument further comprises a force transmission shaft which is arranged in the handle and is respectively connected with the instrument joint and the stress detection device.
According to one embodiment of the utility model, the outer surface of the handle is provided with an anti-slip layer.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a cross-sectional view of a bone strength measuring instrument according to an embodiment of the present utility model.
Reference numerals: the bone strength measuring instrument 1, a handle 10, a handle housing 11, a handle end cover 12, an anti-slip layer 13, an instrument connector 20, a ratchet mechanism 21, a sensor 30, a power supply device 40, a force transmission shaft 50 and a circuit board 60.
Detailed Description
The present utility model has been made based on the findings and knowledge of the inventors regarding the following facts and problems:
bone strength is a mechanical property, and direct mechanical measurement of bones can reflect bone strength more intuitively and accurately than indirect measurement by an X-ray or ultrasonic method in the related art.
Many invasive procedures, such as milling, drilling, open-circuit, etc., are involved in bone surgery, providing an opportunity to directly measure bone.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
A bone strength measuring instrument 1 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.
As shown in fig. 1, a bone strength measuring instrument 1 according to an embodiment of the present utility model includes a handle 10, an instrument adapter 20, a force detecting means, and a power supply means 40.
An instrument adapter 20 is connected to one end of the handle 10, the instrument adapter 20 being adapted for connection to an orthopaedic surgical instrument. The force sensing means is provided within the handle 10 and is adapted to sense at least one of a force and a moment experienced by the instrument coupling 20. The power supply device 40 is disposed in the handle 10 and electrically connected to the force detection device 30.
Those skilled in the art will appreciate that the orthopaedic surgical instrument includes, but is not limited to, an open circuit device, a pointed cone, a tap.
Specifically, in the bone surgery, the bone surgery instrument is mounted on the instrument connector 20, the operator holds the handle 10 to perform the operation on the bone by using the bone surgery instrument, such as open circuit, drilling, tapping, etc., the acting force between the bone surgery instrument and the bone is transmitted to the force detection device through the instrument connector 20, and the force required for performing the operation on the bone by using the bone surgery instrument is different due to different bone strengths, so that the bone strength can be reflected by calculating the detection value of the force detection device.
For example, when an open or drilling operation is performed, an operator holds the handle 10 to apply force to the bone axially by using the open-circuit device or the pointed cone, and the axial force between the bone and the open-circuit device or the pointed cone is transmitted to the force detection device through the instrument connector 20, so that the strength of the bone can be reflected by calculation of the force detection value of the force detection device.
In performing the tapping operation, the operator holds the handle 10 to apply force to the bone axially by using the tap and rotate the tap circumferentially relative to the bone, and the axial force and the circumferential rotation torque between the bone and the tap are transmitted to the force detection device through the instrument connector 20, so that the strength of the bone can be reflected by calculation of the force and/or moment detection values of the force detection device.
According to the bone strength measuring instrument 1 of the embodiment of the utility model, by arranging the handle 10, the instrument connector 20 and the stress detecting device, the stress of the instrument connector 20 can be detected by using the stress detecting device in an orthopedic operation, so that the stress of the orthopedic operation instrument connected to the instrument connector 20 is reflected, the acting force between the orthopedic operation instrument and the bones is reflected when the operation is performed, the direct mechanical property measurement of the bones is realized, compared with the indirect measurement method of the bone strength by adopting an X-ray or ultrasonic method in the related art, the bone strength measuring instrument 1 can more intuitively and accurately reflect the bone strength, the measurement of the bone strength in operation is realized, a doctor can be helped to judge and analyze in real time in the operation process, a regression prediction model can be built according to the bone strength data obtained by the operation, the preoperative blood test and the imaging examination result, or the bone strength database is built according to the bone strength data obtained by the operation measurement, the operation mode adopted by a patient in the database and the osteoporosis resistance treatment mode are recorded, the prognosis information of the patient in the database is obtained by follow-up, and the bone strength prediction mode is realized through selecting the osteoporosis resistance medicine. Finally, an osteoporosis treatment system based on the bone strength is established.
In addition, the bone strength measuring instrument 1 can realize real-time bone strength measurement in the operation of the bone surgery without changing the original operation of the bone surgery, and has simple and convenient operation.
Therefore, the bone strength measuring instrument 1 according to the embodiment of the utility model has the advantages of accurate measurement, convenient operation and the like.
The bone strength measuring instrument 1 according to the embodiment of the present utility model is described below with reference to the accompanying drawings.
In some embodiments of the present utility model, as shown in fig. 1, a bone strength measuring instrument 1 according to an embodiment of the present utility model includes a handle 10, an instrument adapter 20, a force detection device, and a power supply device 40.
In some embodiments, the force sensing device is used to sense at least the axial force of the instrument tab 20. This allows the bone strength gauge 1 to be used in axially forced orthopedic procedures.
In some embodiments, the instrument adapter 20 is unidirectionally rotatably disposed on the handle 10. Thus, the handle 10 can drive the instrument connector 20 and the orthopedic surgical instrument connected with the instrument connector to rotate together when rotating in a certain direction, and the instrument connector 20 and the orthopedic surgical instrument connected with the instrument connector can not rotate when the handle 10 rotates in another direction, so that an operator can conveniently perform orthopedic surgical operations requiring rotation, such as tapping operations and the like.
Specifically, as shown in FIG. 1, the instrument tab 20 is unidirectionally rotatably provided to the handle 10 by a ratchet mechanism 21. This facilitates a unidirectional rotational arrangement of the instrument adapter 20 on the handle 10.
Advantageously, the force sensing means are at least adapted to sense the rotational moment experienced by the instrument joint 20. The rotational moment received by the instrument connector 20 can be detected to reflect the rotational moment received by the bone surgery instrument connected to the instrument connector 20 when performing the bone surgery operation requiring circumferential rotation, thereby reflecting the bone strength.
Fig. 1 illustrates a bone strength measuring instrument 1 according to some examples of the utility model. As shown in fig. 1, the force detecting device includes a sensor 30 for detecting at least one of a force and a moment applied to the instrument joint 20 and generating an analog signal, and a signal converting device electrically connected to the sensor 30 for converting the analog signal into a digital signal. This can facilitate the output and calculation of the detection signal of the sensor 30.
Advantageously, the bone strength measuring instrument 1 further comprises wireless communication means electrically connected to the power supply means 40 and to the force detection means, respectively. Specifically, the wireless communication device may be a bluetooth communication device, and the bluetooth communication device may perform wireless communication with a mobile terminal such as a mobile phone. This allows the bone strength measuring instrument 1 to output the measurement result through wireless communication, avoiding interference of the wired connection with the operation.
Alternatively, the power supply 40 is a battery. Therefore, the power supply for the stress detection device can be conveniently performed, the setting of a power supply circuit is omitted, and the power supply circuit is prevented from interfering with operation.
Specifically, as shown in fig. 1, the bone strength measuring instrument 1 further includes a force transmission shaft 50, and the force transmission shaft 50 is disposed in the handle 10 and is connected to the instrument adapter 20 and the force detecting device, respectively. In this way, the force and/or moment applied to the tool joint 20 can be transmitted to the force detection device by using the force transmission shaft 50, so that the force detection device can be used for detecting the force applied to the tool joint 20, and the arrangement of the structure in the handle 10 is facilitated.
More advantageously, as shown in fig. 1, the outer surface of the handle 10 is provided with an anti-slip layer 13. Specifically, the anti-slip layer 13 may be a rubber layer. This prevents slipping when the operator holds the handle 10.
Specifically, the handle 10 is barrel-shaped. This may make it more comfortable for the operator to hold the handle 10.
The bone strength meter 1 further includes a circuit board 60. The wireless communication device and the signal conversion device are arranged on the circuit board. This may facilitate the integration of the circuitry and facilitate the arrangement of the structures within the handle 10.
The handle 10 has a connector therein and the sensor 30 is disposed on a side of the connector adjacent the instrument connector 20. This may facilitate the installation of the sensor 30.
A protective shell can be sleeved outside the battery. This way the battery can be protected by the protective shell.
The handle 10 may include a handle housing 11 and a handle cover 12 detachably provided to the handle housing 11, and the battery may be replaced by removing the handle cover 12.
The bone strength measuring instrument 1 is made of a low-temperature sterilization resistant material. The handle housing 11 may be a metallic piece, the handle end cap 12 may be a plastic piece, and the instrument adapter 20 may be a metallic piece.
For example, the calculating process of the detection value of the stress detection device may include:
calculating the maximum value of force, the maximum value of moment, the integral of the positive part of force and the integral of the positive part of moment in real time according to the detection results of the force and the moment, and setting the force measured value at each moment in the tapping process as F i The moment measurement value is T i Corresponding time t i The algorithm is shown in the following table:
the maximum moment has been verified in model bone pre-experiments, wherein the maximum moment has better correlation with various mechanical properties of model bone, such as compressive strength, tensile strength, shearing strength, compression modulus, tensile modulus and shearing modulus. Specific information on the correlation is shown in the following table:
* The steps are as follows: a, tapping after breaking through cortical bone; b: tapping after breaking through cortical bone and open circuit
* Tapping thread diameter in mm
Other constructions and operations of the bone strength measuring instrument 1 according to the embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A bone strength measuring instrument, comprising:
a handle;
an instrument connector connected to one end of the handle, the instrument connector adapted to connect with an orthopaedic surgical instrument;
the stress detection device is arranged in the handle and is used for detecting at least one of force and moment applied to the instrument joint;
and the power supply device is arranged in the handle and is electrically connected with the stress detection device.
2. The bone strength measuring instrument according to claim 1, wherein the force detecting means is at least for detecting an axial force of the instrument joint.
3. The bone strength meter of claim 1, wherein the instrument adapter is unidirectionally rotatably disposed on the handle.
4. The bone strength meter of claim 3, wherein the instrument adapter is unidirectionally rotatably disposed on the handle via a ratchet mechanism.
5. The bone strength measuring instrument according to claim 3, wherein the force detecting means is at least for detecting a rotational moment to which the instrument adapter is subjected.
6. The bone strength measuring instrument according to claim 1, wherein the force sensing means comprises a sensor for sensing at least one of force and moment experienced by the instrument joint and generating an analog signal, and a signal conversion means electrically connected to the sensor for converting the analog signal to a digital signal.
7. The bone strength measuring instrument according to claim 1, further comprising a wireless communication device electrically connected to the power supply device and the force detection device, respectively.
8. The bone strength measuring instrument according to claim 1, wherein the power supply device is a battery.
9. The bone strength measuring instrument of claim 1, further comprising a force transmission shaft disposed within the handle and connected to the instrument adapter and the force sensing device, respectively.
10. The bone strength measuring instrument according to claim 1, wherein an outer surface of the handle is provided with an anti-slip layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320349059.6U CN219578861U (en) | 2023-02-20 | 2023-02-20 | Bone strength measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320349059.6U CN219578861U (en) | 2023-02-20 | 2023-02-20 | Bone strength measuring instrument |
Publications (1)
| Publication Number | Publication Date |
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| CN219578861U true CN219578861U (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320349059.6U Active CN219578861U (en) | 2023-02-20 | 2023-02-20 | Bone strength measuring instrument |
Country Status (1)
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|---|---|
| CN (1) | CN219578861U (en) |
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- 2023-02-20 CN CN202320349059.6U patent/CN219578861U/en active Active
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