CN111449810A - 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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Publication number
CN111449810A
CN111449810A CN202010365887.XA CN202010365887A CN111449810A CN 111449810 A CN111449810 A CN 111449810A CN 202010365887 A CN202010365887 A CN 202010365887A CN 111449810 A CN111449810 A CN 111449810A
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China
Prior art keywords
outer sleeve
inner sleeve
sleeve
reconstruction
intelligent
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Pending
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CN202010365887.XA
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Chinese (zh)
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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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Priority to CN202010365887.XA priority Critical patent/CN111449810A/en
Publication of CN111449810A publication Critical patent/CN111449810A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4657—Measuring instruments used for implanting artificial joints
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H80/00—ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4657—Measuring instruments used for implanting artificial joints
    • A61F2002/4666—Measuring instruments used for implanting artificial joints for measuring force, pressure or mechanical tension

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Neurology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Medical Informatics (AREA)
  • Epidemiology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Primary Health Care (AREA)
  • Human Computer Interaction (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pathology (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses an intelligent orthopedic implant for reconstruction after vertebral body resection, 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. The invention can accurately judge whether the patient achieves bone fusion or not under the condition of not carrying out X-ray and CT examination, increases the accuracy of bone fusion judgment, and can record and feed back the self position, stress condition and the like of the implanted plant in the orthopedics department.

Description

Intelligent orthopedic implant for reconstruction after vertebral body resection
Technical Field
The invention relates to the field of medical instruments, in particular to an intelligent orthopedic implant for reconstruction after vertebral body resection.
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.
Disclosure of Invention
The invention aims to provide an intelligent orthopedic implant for reconstruction after vertebral body resection, which can accurately judge whether a patient achieves bone fusion or not under the condition of not carrying out X-ray and CT examination, increase the accuracy of bone fusion judgment, and record and feed back the self position, stress condition and the like of the orthopedic implant after implantation.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the invention discloses an intelligent orthopedic implant for reconstruction after vertebral body resection, 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 which 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.
Furthermore, the stress sensor, the displacement sensor and the gravity sensor are all in wireless connection with the intelligent terminal, the intelligent terminal is provided with an APP, and the APP is used for analyzing and processing data acquired by the stress sensor, the displacement sensor, the gravity sensor and the chemical sensor.
The working principle of the invention 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 invention has the following beneficial effects:
1. the invention can accurately judge whether the patient achieves bone fusion under the condition of not carrying out X-ray and CT examination, and reduces medical expenses, time cost and labor cost which are spent in X-ray and CT shooting.
2. The invention can increase the accuracy of bone fusion judgment (the accuracy of the existing X-ray and CT judgment fusion is lower, only about 50-70%).
3. The invention can be used by pregnant women, pregnant woman preparing personnel and other radiation hazard sensitive personnel (the pregnant women and pregnant woman preparing personnel are often in embarrassing situations because the pregnant women and pregnant woman preparing personnel worry about radiation hazard and are also combined with diseases needing orthopedic surgery).
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 apparent, 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.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.

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 3 or 6, characterized in that: the elastic component comprises a spring, an elastic sheet or a crossed elastic sheet.
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.
CN202010365887.XA 2020-04-30 2020-04-30 Intelligent orthopedic implant for reconstruction after vertebral body resection Pending CN111449810A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111821073A (en) * 2020-08-20 2020-10-27 四川大学华西医院 Orthopedic implant system for monitoring activity posture and stress change thereof and monitoring method
CN111839834A (en) * 2020-08-20 2020-10-30 四川大学华西医院 Intelligent uncinate vertebra joint stress monitoring system and method
CN111938881A (en) * 2020-08-20 2020-11-17 四川大学华西医院 Intelligent intervertebral disc system capable of monitoring activity posture and stress thereof and monitoring method
CN111973324A (en) * 2020-08-20 2020-11-24 四川大学华西医院 Orthopedic implant system based on stress self-adaption controllable adjustment and control method thereof
CN113116608A (en) * 2021-04-20 2021-07-16 电子科技大学 Intelligent intervertebral fusion device for healing uncinate vertebral joints and control method
CN115624417A (en) * 2022-11-17 2023-01-20 北京爱康宜诚医疗器材有限公司 Femoral stem prosthesis

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