CN213250065U - Intelligent orthopedic implant for reconstruction after vertebral body resection - Google Patents

Intelligent orthopedic implant for reconstruction after vertebral body resection Download PDF

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CN213250065U
CN213250065U CN202020720670.1U CN202020720670U CN213250065U CN 213250065 U CN213250065 U CN 213250065U CN 202020720670 U CN202020720670 U CN 202020720670U CN 213250065 U CN213250065 U CN 213250065U
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outer sleeve
inner sleeve
sleeve
reconstruction
intelligent
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杨毅
刘浩
马立泰
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West China Hospital of Sichuan University
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West China Hospital of Sichuan University
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Abstract

The utility model discloses an intelligent orthopedic implant used for reconstruction after centrum excision, which comprises an outer sleeve and an inner sleeve; the stress sensor and the displacement sensor are arranged in a supporting part between the open end of the inner sleeve and the outer sleeve, and the gravity sensor is arranged on the inner wall of the outer sleeve or the inner sleeve; the side wall of the outer sleeve and/or the inner sleeve is provided with a plurality of through holes, the through holes are communicated with the inner cavity of the outer sleeve and/or the inner sleeve, and the number of the through holes is multiple. The utility model discloses can be under the condition of not carrying out X-ray, CT inspection, whether accurate judgement patient reaches the osseointegration, increases the rate of accuracy that the osseointegration judged to can carry out the record and feedback to self position, stress condition etc. after the plant implants in the orthopedics.

Description

Intelligent orthopedic implant for reconstruction after vertebral body resection
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a plant in intelligent orthopedics that is used for rebuilding after centrum excision.
Background
The existing orthopedic implant needs to be subjected to X-ray and CT examination repeatedly after being implanted to judge whether a patient achieves bone healing or not, and the patient needs to go to a hospital repeatedly for multiple examinations, so that the problems of labor cost, time cost, economic cost and radiation hazard exist; and the self position and the stress condition of the implanted orthopedic implant, the spinal motion, the rehabilitation exercise time, the rest time, the lying time and the like of a patient are lack of recording and feedback.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a plant in intelligent orthopedics that is used for rebuilding after centrum excision for rebuild after centrum excision can be under the condition that does not carry out X-ray, CT inspection, and accurate judgement patient whether reaches the osseointegration, increases the rate of accuracy that the osseointegration judges to can carry out record and feedback to self position, stress condition etc. after the plant implants in the orthopedics.
In order to achieve the purpose, the utility model adopts the following technical proposal to realize:
the utility model discloses an intelligent orthopaedics implant used for reconstruction after centrum excision, which comprises an outer sleeve and an inner sleeve; the stress sensor and the displacement sensor are arranged in a supporting part between the open end of the inner sleeve and the outer sleeve, and the gravity sensor is arranged on the inner wall of the outer sleeve or the inner sleeve; the side wall of the outer sleeve and/or the inner sleeve is provided with a plurality of through holes, the through holes are communicated with the inner cavity of the outer sleeve and/or the inner sleeve, and the through holes are arranged on the periphery of the outer sleeve and/or the inner sleeve.
Furthermore, bone grafting holes are formed in the side wall of the outer sleeve and/or the side wall of the inner sleeve and are communicated with the inner cavities of the outer sleeve and the inner sleeve.
Preferably, the outer sleeve and the inner sleeve are both cylindrical titanium meshes.
Furthermore, the end surfaces of the outer sleeve and the inner sleeve are covered with an adhesion layer, and the adhesion layer is made of elastic alloy or degradable material.
Furthermore, an elastic component is arranged between the end surfaces of the outer sleeve and the inner sleeve and the adhesion layer.
Preferably, the supporting component is an elastic supporting component, and an elastic support is arranged between the inner wall of the outer sleeve and the outer wall of the inner sleeve.
Furthermore, a stress sensor is arranged on the elastic component.
Further, chemical sensors are arranged in the outer sleeve and the inner sleeve.
Further, displacement sensors are arranged on the end faces of the outer sleeve and the inner sleeve.
Preferably, the elastic component comprises a spring, a shrapnel or a crossed shrapnel.
Further, the utility model discloses still include intelligent terminal, stress sensor, displacement sensor, gravity sensor all with intelligent terminal wireless connection, intelligent terminal installs APP, APP is used for the data that analysis and processing stress sensor, displacement sensor, gravity sensor, chemical sensor acquireed.
The working principle of the utility model is as follows:
after the orthopedic implant reconstructed after the vertebral body is cut off, such as an artificial vertebral body, a titanium mesh and the like is implanted, due to the existence of human body gravity, the upper vertebral body and the lower vertebral body can press the orthopedic implant, the elastic component can deform, the stress sensors at the gap between the outer sleeve and the inner sleeve and the stress sensors at the end parts of the outer sleeve and the inner sleeve record the stress and transmit the stress to the connected intelligent terminal, and a doctor can observe the stress in an APP at the doctor end;
when the spine of the patient moves, for example, when the body changes posture, the elastic part and the elastic support deform again, the outer sleeve and the inner sleeve move slightly in the gap to generate displacement, and the stress also changes correspondingly; the micro-motion and the displacement can be recorded and transmitted to the intelligent terminal by the displacement sensor and the stress sensor; the change of the posture causes the change of the gravity direction, and the gravity sensor records and transmits the change to the intelligent terminal.
When a patient does not achieve bone healing, the gravity of the patient is mainly transmitted through the orthopedic implants, the stress is mainly concentrated on the orthopedic implants (one main function of the orthopedic implants is a supporting function), and when the spine of the patient moves and changes posture, the stress can be changed, micro motion and displacement can be generated, and the direction of the gravity can be changed. After the intervertebral fusion, the bone connects the upper and lower vertebral bodies to play a role of intervertebral firm support; at this time, the orthopedic implant is just like a component in a hollow in the concrete, does not bear stress, does not generate micromotion and displacement, but still has the change of the gravity direction. The displacement sensor now registers a value of 0 and the stress sensor registers a stress which is fixed at a lower value. At the moment, a doctor can judge whether the patient achieves intervertebral fusion after operation or not and whether the patient is completely recovered or not through the recorded stress and displacement curve, so that repeated radiation irradiation such as X-ray, CT and the like is avoided.
The utility model has the advantages as follows:
1. the utility model discloses can be under the condition of not carrying out X-ray, CT inspection, whether accurate judgement patient reaches the osseointegration, reduce medical expense, time cost, the human cost that X-ray, CT shot spent.
2. The utility model can increase the accuracy of bone fusion judgment (the accuracy of fusion judgment by the existing X-ray and CT is lower, only about 50-70%).
3. The utility model can be used by pregnant women, pregnant woman and other radioactive hazard sensitive persons (pregnant women and pregnant woman need orthopedic surgery for worrying about radioactive hazard and diseases, which are always in embarrassing situation).
4. The elastic component can provide axial stress stimulation for the intelligent orthopedic implant reconstructed after the vertebral body is cut off, is beneficial to bones and production, accelerates the bone fusion speed and improves the bone fusion quality.
5. The elastic support 7 can provide radial stress stimulation for the intelligent orthopedic implant used for reconstruction after vertebral body resection, so that the radial stress can be generated in the horizontal position after adjustment. When standing upright, the stress is aggravated by the self-gravity, and the stress transmitted by the bone rises.
6. The chemoreceptor can obtain local conditions such as PH value, titanium alloy chips, PEEK chips and other material chips in the orthopedic implant and transmit the local conditions to APP for a doctor to judge whether the orthopedic implant has excessive wear, degradation and the like.
7. Through the data recorded by the stress sensor, the displacement sensor and the gravity sensor, the APP can be automatically analyzed and converted into a patient curve, so that the patient data such as the activity degree, the activity time, the lying time, the rehabilitation training exercise time and the like of the patient and whether the plants in the orthopedics have complications such as displacement, dislocation, collapse and the like are analyzed and obtained.
8. Displacement sensors are arranged on the end surfaces of the outer sleeve and the inner sleeve, so that whether the plants in the orthopedics department have displacement or not can be judged, and whether the plants in the orthopedics department have displacement and looseness or not can be judged in an auxiliary mode.
Drawings
FIG. 1 is a sectional view of examples 1 and 5.
Fig. 2 is a front view of embodiments 1, 2, 3 and 4.
FIG. 3 is a sectional view of examples 2 and 6.
FIG. 4 is a sectional view of examples 3 and 7.
FIG. 5 is a sectional view of examples 4 and 8.
FIG. 6 is a front view of examples 5, 6, 7 and 8.
Fig. 7 is an electrical schematic block diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, the present embodiment includes an outer sleeve 2 and an inner sleeve 2; the outer sleeve 2 and the inner sleeve 1 are both provided with an opening at one end, the other end is provided with an end face, the opening end of the outer sleeve 2 is sleeved at the opening end of the inner sleeve 1, the outer sleeve and the inner sleeve are in clearance fit, the fit clearance is 1-2mm, a stress sensor 3 is arranged in the clearance between the outer sleeve 2 and the inner sleeve 1, a stress sensor 3 and a displacement sensor 5 are arranged on a supporting part between the opening end of the inner sleeve 1 and the outer sleeve 2, and a gravity sensor 4 is arranged on the inner wall of the outer sleeve 2.
The side wall of the outer sleeve 2 and/or the inner sleeve 1 is provided with bone grafting holes 11, the bone grafting holes 11 are communicated with inner cavities of the outer sleeve 2 and the inner sleeve 1, the side wall of the outer sleeve 2 and/or the inner sleeve 1 is provided with through holes 12, the through holes 12 are communicated with the inner cavities of the outer sleeve 2 and/or the inner sleeve 1, the number of the through holes 12 is multiple, and the number of the through holes 12 are arranged on the periphery of the outer sleeve 2 and/or the inner sleeve 1.
The end surfaces of the outer sleeve 2 and the inner sleeve 1 are covered with an adhesion layer 6, and the adhesion layer 6 is made of elastic alloy or degradable material.
Chemical sensors are arranged in the outer sleeve 2 and the inner sleeve 1; displacement sensors are arranged on the end surfaces of the outer sleeve 2 and the inner sleeve 1.
As shown in fig. 7, this embodiment still includes intelligent terminal, and stress sensor 3, displacement sensor 5, gravity sensor 4 all with intelligent terminal wireless connection, intelligent terminal installs the APP, and the APP is used for the data that analysis and processing stress sensor, displacement sensor, gravity sensor, chemical sensor acquireed. The intelligent terminal can adopt a smart phone.
Example 2
As shown in fig. 3 and 2, the present embodiment is different from embodiment 1 in that:
an elastic component 10 is arranged between the end surfaces of the outer sleeve 2 and the inner sleeve 1 and the adhesion layer, the elastic component 10 is made of springs, elastic sheets or crossed elastic sheets and the like, and a stress sensor 3 is arranged on the elastic component 10.
The stress sensor 3 on the elastic component 10 is wirelessly connected with the intelligent terminal.
Other parts of this embodiment are the same as embodiment 1, and thus are not described in detail.
Example 3
As shown in fig. 4 and fig. 2, the present embodiment is different from embodiment 1 in that:
the supporting component is an elastic supporting component, and an elastic support 7 is arranged between the inner wall of the outer sleeve 2 and the outer wall of the inner sleeve 1.
Other parts of this embodiment are the same as embodiment 1, and thus are not described in detail.
Example 4
As shown in fig. 5 and fig. 2, the present embodiment is different from embodiment 2 in that:
the supporting component is an elastic supporting component, and an elastic support 7 is arranged between the inner wall of the outer sleeve 2 and the outer wall of the inner sleeve 1.
Other parts of this embodiment are the same as embodiment 2, and thus are not described in detail.
The above examples 1, 2, 3 and 4 can be used as artificial vertebral bodies.
Examples 5, 6, 7 and 8
As shown in fig. 6, examples 5, 6, 7, and 8 are different from examples 1, 2, 3, and 4 in that:
the outer sleeve 2 and the inner sleeve 1 are both cylindrical titanium meshes 13, so that bone grafting holes and through holes do not need to be additionally arranged.
Examples 5, 6, 7, and 8 are the same as examples 1, 2, 3, and 4, respectively, and thus are not repeated.
Examples 5, 6, 7 and 8 can be used as a titanium bone mesh.
Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims (10)

1. An intelligent orthopedic implant for reconstruction after vertebral body resection is characterized in that: comprises an outer sleeve and an inner sleeve; the stress sensor and the displacement sensor are arranged in a supporting part between the open end of the inner sleeve and the outer sleeve, and the gravity sensor is arranged on the inner wall of the outer sleeve or the inner sleeve; the side wall of the outer sleeve and/or the inner sleeve is provided with a plurality of through holes, the through holes are communicated with the inner cavity of the outer sleeve and/or the inner sleeve, and the through holes are arranged on the periphery of the outer sleeve and/or the inner sleeve.
2. An intelligent orthopaedic implant for post-corpectomy reconstruction according to claim 1, wherein: bone grafting holes are formed in the side walls of the outer sleeve and/or the inner sleeve and communicated with the inner cavities of the outer sleeve and the inner sleeve.
3. An intelligent orthopaedic implant for post-corpectomy reconstruction according to claim 1, wherein: the outer sleeve and the inner sleeve are cylindrical titanium meshes.
4. An intelligent orthopaedic implant for post-corpectomy reconstruction, according to claim 2 or 3, characterized in that: the end surfaces of the outer sleeve and the inner sleeve are covered with an adhesion layer, and the adhesion layer is made of elastic alloy or degradable material.
5. An intelligent orthopaedic implant for post-corpectomy reconstruction, according to claim 4, wherein: and elastic parts are arranged between the end surfaces of the outer sleeve and the inner sleeve and the adhesion layer, and stress sensors are arranged on the elastic parts.
6. An intelligent orthopaedic implant for post-corpectomy reconstruction, according to claim 5, wherein: the supporting component is an elastic supporting component, and an elastic support is arranged between the inner wall of the outer sleeve and the outer wall of the inner sleeve.
7. An intelligent orthopaedic implant for post-corpectomy reconstruction, according to claim 2 or 3, characterized in that: chemical sensors are arranged in the outer sleeve and the inner sleeve.
8. An intelligent orthopaedic implant for post-corpectomy reconstruction, according to claim 7, wherein: and displacement sensors are arranged on the end surfaces of the outer sleeve and the inner sleeve.
9. An intelligent orthopaedic implant for post-corpectomy reconstruction, according to claim 5 or 6, characterized in that: the elastic member is a spring.
10. An intelligent orthopaedic implant for post-corpectomy reconstruction, according to claim 8, wherein: still include intelligent terminal, stress sensor, displacement sensor, gravity sensor all with intelligent terminal wireless connection, intelligent terminal installs APP, APP is used for the data that analysis and processing stress sensor, displacement sensor, gravity sensor, chemical sensor acquireed.
CN202020720670.1U 2020-04-30 2020-04-30 Intelligent orthopedic implant for reconstruction after vertebral body resection Active CN213250065U (en)

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CN202020720670.1U CN213250065U (en) 2020-04-30 2020-04-30 Intelligent orthopedic implant for reconstruction after vertebral body resection

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Application Number Priority Date Filing Date Title
CN202020720670.1U CN213250065U (en) 2020-04-30 2020-04-30 Intelligent orthopedic implant for reconstruction after vertebral body resection

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CN213250065U true CN213250065U (en) 2021-05-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111449810A (en) * 2020-04-30 2020-07-28 四川大学华西医院 Intelligent orthopedic implant for reconstruction after vertebral body resection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111449810A (en) * 2020-04-30 2020-07-28 四川大学华西医院 Intelligent orthopedic implant for reconstruction after vertebral body resection

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