阅读说明：本技术 一种智能化骨科钉棒内固定系统 (Intelligent orthopedics nail stick internal fixation system ) 是由 杨毅 马立泰 刘浩 于 2020-04-30 设计创作，主要内容包括：本发明公开一种智能化骨科钉棒内固定系统,包括钉和棒,钉的一端连接棒,钉的另一端为自由端,棒包括依次轴向连接的棒体A、弹性段和棒体B,弹性段内设有应力传感器和位移传感器。本发明可以在不进行X光、CT检查的情况下,准确的判定患者是否达到骨融合,增加骨融合判定的准确率,并且能够对钉棒植入后的自身位置、应力情况等进行记录并反馈。(The invention discloses an intelligent orthopedic nail-rod internal fixation system, which comprises a nail and a rod, wherein one end of the nail is connected with the rod, the other end of the nail is a free end, the rod comprises a rod body A, an elastic section and a rod body B which are sequentially and axially connected, and a stress sensor and a displacement sensor are arranged in the elastic section. The invention can accurately judge whether a 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 nail rod.)

1. The utility model provides an intelligent orthopedics nail stick internal fixation system, includes nail and stick, the one end connective bar of nail, the other end of nail is free end, its characterized in that: the bar comprises a bar body A, an elastic section and a bar body B which are sequentially and axially connected, and a stress sensor and a displacement sensor are arranged in the elastic section.

2. The intelligent orthopedic nail-bar internal fixation system according to claim 1, characterized in that: the nail is connected with the rod through a screw, and a stress sensor and a displacement sensor are arranged at the connecting part of the nail and the rod.

3. The intelligent orthopedic nail-bar internal fixation system according to claim 2, characterized in that: the rod body A and the rod body B are both connected with nails which are perpendicular to the rods.

4. The intelligent orthopedic nail-bar internal fixation system according to claim 1, characterized in that: the elastic deformation direction of the elastic section is the axial direction of the rod.

5. The intelligent orthopedic nail-bar internal fixation system according to any one of claims 1-4, characterized in that: still include intelligent terminal, stress sensor, displacement sensor all with intelligent terminal wireless connection.

6. The intelligent orthopedic nail-bar internal fixation system according to claim 5, characterized in that: the intelligent terminal is a mobile phone.

7. The intelligent orthopedic nail-bar internal fixation system according to claim 5, characterized in that: and a gravity sensor is arranged on the rod body A and/or the rod body B and is in wireless connection with the intelligent terminal.

8. The intelligent orthopedic nail-bar internal fixation system according to claim 5, characterized in that: and the surface of the rod A and/or the surface of the rod B are/is provided with chemical sensors, and the chemical sensors are in wireless connection with the intelligent terminal.

9. The intelligent orthopedic nail-bar internal fixation system according to claim 4, characterized in that: the elastic section comprises a spring, an elastic sheet or a crossed elastic sheet.

Technical Field

The invention relates to the field of medical instruments, in particular to an intelligent orthopedic nail and rod internal fixing system.

Background

The existing orthopedic nail-bar system needs to repeatedly perform X-ray and CT examination after being implanted to assist in judging whether a patient achieves bone healing or not, and the patient needs to repeatedly go to a hospital to perform multiple examinations, so that the problems of labor cost, time cost, economic cost, radiation hazard and the like are solved. In addition, the existing nail-bar system lacks recording and feedback of the self position and stress condition after implantation, the limb movement of the patient, the rehabilitation exercise time, the rest time, the lying time and the like.

Disclosure of Invention

The invention aims to provide an intelligent orthopedic nail-bar internal fixation system (which can be used for a plurality of operations such as anterior spinal surgery, posterior spinal surgery, lateral surgery and the like) which can accurately judge whether a patient achieves bone fusion or not without 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 a nail bar after implantation.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

the invention discloses an intelligent nail-rod system, which comprises a nail and a rod, wherein one end of the nail is connected with the rod, and the other end of the nail is a free end, and is characterized in that: the bar comprises a bar body A, an elastic section and a bar body B which are sequentially and axially connected, and a stress sensor and a displacement sensor are arranged in the elastic section.

Preferably, the nail is connected with the rod through a screw, and a stress sensor and a displacement sensor are arranged at the connecting part of the nail and the rod.

Preferably, the rod body A and the rod body B are both connected with a nail, and the nail is perpendicular to the rod.

Preferably, the elastic deformation direction of the elastic section is the axial direction of the rod.

Furthermore, the invention also comprises an intelligent terminal, wherein the stress sensor and the displacement sensor are both in wireless connection with the intelligent terminal.

Preferably, the intelligent terminal is a mobile phone.

Furthermore, a gravity sensor is arranged on the stick body A and/or the stick body B, and the gravity sensor is in wireless connection with the intelligent terminal.

Further, a chemical sensor is arranged on the surface of the rod A and/or the surface of the rod B and is in wireless connection with the intelligent terminal.

Preferably, the elastic section comprises a spring, a shrapnel or a crossed shrapnel.

The working principle of the invention is as follows:

after the orthopedic nail bar internal fixation system is implanted, due to the existence of human body gravity, bones can press the orthopedic nail bar internal fixation system, the elastic part can deform, the stress sensor records the stress and transmits the stress to the connected intelligent terminal, and a doctor can observe the stress in a doctor end APP;

when the patient moves, for example, when the body changes posture, the elastic component can deform again, the connecting parts of the rod A, the rod B and the nail are slightly moved to generate displacement, and the stress can also generate corresponding change; 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 intervertebral orthopedic nail rod internal fixing system, the stress is mainly concentrated on the orthopedic nail rod internal fixing system (one main function of the orthopedic nail rod internal fixing system is the supporting function), and when the patient moves and changes postures, the stress can be changed, micro motion and displacement can be generated, and the gravity direction 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 internal fixing system of the orthopedic nail rod is like a component in a hollow hole in 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 intelligently realize that whether the intervertebral fusion is achieved is judged by the invention! The radiation hazard of the traditional X-ray and CT radiological method is avoided, the time, labor and economic cost caused by the two parties are reduced, and the social medical burden is reduced;

2. the invention completes the longitudinal elastic design, increases the stress stimulation of the intervertebral, avoids the stress shielding and is beneficial to early rehabilitation.

3. The invention increases the displacement and stress detection of the joint of the screw and the rod, and can intelligently judge whether the screw rod system has complications such as looseness, breakage, screw withdrawal and the like;

4. according to the invention, through the data recorded by the stress sensor, the displacement sensor and the gravity sensor, the mobile phone 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 are obtained through analysis and are used for a doctor to better guide the patient to perform rehabilitation exercise;

5. the invention is designed with a chemoreceptor, can acquire the local conditions of material chips such as PH value, titanium alloy chips, PEEK chips and the like on the surface of a nail rod system, and transmits the local conditions to APP for a doctor to judge whether the materials are degraded, failed and the like.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 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.

As shown in figure 1, the intelligent orthopedics nail-bar internal fixation system disclosed by the invention comprises a nail 4 and a bar, wherein one end of the nail 4 is connected with the bar, the other end of the nail 4 is a free end, the bar comprises a bar body A1, an elastic section 2 and a bar body B3 which are sequentially and axially connected, the elastic deformation direction of the elastic section 2 is the axial direction of the bar, the elastic section 2 can be formed by a spring, an elastic sheet or a crossed elastic sheet, and a stress sensor 5 and a displacement sensor 6 are arranged in the elastic section 2.

The nail 4 is connected with the rod through a screw, and a stress sensor 5 and a displacement sensor 6 are arranged at the connecting part of the nail and the rod. The rod A1 and the rod B3 are both connected with a nail 4, and the nail 4 is vertical to the rod

A gravity sensor is arranged on the rod A1 and/or the rod B3, and a chemical sensor is arranged on the surface of the rod A1 and/or the rod B3.

As shown in fig. 2, the invention also comprises an intelligent terminal, wherein the stress sensor, the displacement sensor, the gravity sensor and the chemical sensor are all in wireless connection with the intelligent terminal; intelligent terminal preferred mobile phone

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.