CN216021361U - Non-radiation spinal column positioning device in operation - Google Patents
Non-radiation spinal column positioning device in operation Download PDFInfo
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- CN216021361U CN216021361U CN202121273414.3U CN202121273414U CN216021361U CN 216021361 U CN216021361 U CN 216021361U CN 202121273414 U CN202121273414 U CN 202121273414U CN 216021361 U CN216021361 U CN 216021361U
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Abstract
The utility model discloses a radiation-free intraoperative spine positioning device in the technical field of intraoperative spine positioning, which comprises an equipment cabinet, wherein the equipment cabinet is an operating platform, a supporting rod is vertically arranged on a top platform, and a telescopic rod is horizontally arranged at the top end of the supporting rod; the transverse hanging rack and the longitudinal rack are mutually vertically and crossly arranged, at least one projector is respectively hung on the transverse hanging rack and the longitudinal rack, and a C-shaped arm X-ray machine with radioactivity can not be used in an operation, so that radiation of perspective equipment to doctors in the operation is reduced. The device can enable the patient to only accept one-time CT examination, so that the radiation accepted by the patient is in the conventional bearing range of human body medical detection, the additional harm caused by radiation exposure of the patient in the operation is avoided, the operation difficulty is greatly reduced, and the use is more convenient.
Description
Technical Field
The utility model relates to the technical field of spinal column positioning in an operation, in particular to a radiation-free spinal column positioning device in the operation.
Background
At present, occupation in the vertebral canal and serious diseases such as lumbar disc herniation need to be treated by the operation aiming at the expansion of the spine, and the spine is inside the internal muscular tissue, and the position of the spine can not be seen by naked eyes through the muscle during the traditional operation treatment, so that the specific position of the focus is difficult to be accurately determined by naked eyes. The C-arm X-ray machine is most commonly used at present, and can assist focus positioning through perspective display of the spine.
The C-shaped arm X-ray machine is widely applied to positioning in the spine surgery due to the characteristics of convenience, rapidness and clear imaging. However, because multiple fluoroscopy is often required, ionizing radiation exposure to the patient and the medical personnel is greatly increased. In particular, after medical care personnel are exposed to radiation exceeding a limit value for a long time and reach a certain accumulated dose, serious problems such as radiation cataract, leukemia, skin cancer, even chromosome teratogenesis and the like are easily caused. Existing spinal surgical navigation devices, while highly accurate in positioning, require an intraoperative CT fit with a greater radiation dose. Moreover, the purchase price and the use cost of the equipment are very expensive, the equipment and software cost is even up to ten million yuan, the operation steps are complicated, the preparation and the registration of the navigation equipment in the operation often need 20 to 30 minutes, and if the operation is not satisfactory or the reference arc is influenced by the instrument, the preoperative software parameter setting must be carried out on the equipment again, so the operation of a doctor is seriously influenced.
In addition, the navigation equipment for the spinal surgery is bulky, the navigation equipment is easy to cause mutual interference among surgical instruments, the operation efficiency is reduced, in the spinal surgery, the frequent use of fluoroscopy can increase the times and exposure of radiation exposure for patients and treatment teams, the health is threatened, each patient is exposed in one operation, but doctors are exposed to the radiation exposure for a long time, and the bodies of the patients are damaged while treating other people.
Based on the above, the utility model designs a non-radioactive intraoperative spine positioning device to solve the above problems.
Disclosure of Invention
The utility model aims to provide a non-radioactive spine positioning device in operation, which can reduce the radiation of a fluoroscopy device to a doctor in operation by not using a C-shaped arm X-ray machine with radioactivity in the operation. The device can enable the patient to only receive CT radiation of one normal dose, so that the radiation received by the patient is within the conventional bearing range of human medical detection, the additional harm caused by radiation exposure of the patient in the operation is avoided, and the use is more convenient.
The utility model is realized by the following steps: a radiation-free intraoperative spinal positioning device, comprising:
the equipment cabinet is an operation platform, a supporting rod is vertically arranged on a top platform, and a telescopic rod is horizontally arranged at the top end of the supporting rod;
the horizontal hanging rack is horizontally and fixedly arranged at the telescopic end of the telescopic rod, a longitudinal rack is horizontally and fixedly arranged on the horizontal hanging rack, the horizontal hanging rack and the longitudinal rack are mutually vertically and alternately arranged, and at least one projector is respectively hung on the horizontal hanging rack and the longitudinal rack;
the projection direction of the projectors faces downwards, the projection focuses of all the projectors on the transverse hanging rack and the longitudinal hanging rack are the same, and the positions of the images projected by all the projectors are overlapped; a camera is hung at the bottom of the transverse hanging rack, and the shooting direction of the camera is downward;
MR glasses, which are visual glasses of mixed reality;
the controller is erected and installed on the equipment cabinet, all the projectors are in data connection with the controller, the controller is also connected with identification equipment, the camera and the MR glasses are electrically connected with the controller, and the MR glasses are in data connection with the camera through the controller;
the data identification is an identity identification, is tightly adhered to the back of the patient and is not overlapped with the surgical site, the data identification is matched with corresponding data stored in the controller, and the data identification is matched with the controller data through identification equipment;
the motion capture instrument is provided with a plurality of motion capture imaging patches which can be separately adhered to the back of the patient, and the motion capture instrument is electrically connected with the controller.
Further, the bottom of the equipment cabinet is uniformly provided with a plurality of universal wheels and supporting legs, and the supporting legs are hydraulic supporting rods.
Furthermore, 4 projectors are arranged on the transverse hanging rack and the longitudinal hanging rack, and the four projectors are hung above the surgical site of the patient.
Further, the controller is a computer that processes and controls data.
Furthermore, the telescopic link is electric putter, the telescopic link passes through controller control.
Further, the identification device is a data scanning camera, and the projector is a portable projector.
Furthermore, the data identification is a tattoo paste with a two-dimensional code pattern, the data identification adhered to each patient is different, and the data identification adhered to each patient corresponds to the spine skeleton CT virtual model stored in the controller one by one;
the data markers are at a distance ranging between 10-30cm from the surgical site.
Further, the camera is arranged below the junction of the transverse hanging rack and the longitudinal rack.
The utility model has the beneficial effects that: 1. the projector is used for projecting the spine skeleton shape of the patient stored in the controller on the position corresponding to the spine of the patient body, and is used for assisting a doctor in an operation to accurately judge the model and the position of the spine and a focus of the patient, so that the doctor can conveniently perform the operation on the patient;
2. the device does not use a bone perspective device with radiation in the operation, so that neither a patient nor a doctor is subjected to the exposure hazard of the radiation in the operation, and the health of the device cannot be damaged;
3. because the device acts on the affected part of the spine of the patient through projection, doctors participating in the operation can conveniently observe the spine skeleton condition of the patient in the operation, the use is more convenient, and the patient who is performing the operation can be projected on the skin of the operation part to the matched skeleton image picture only by starting the projection;
4. this device has used four at least projectors, and the projecting image of every projector overlaps completely, makes this device overlap patient's skeleton picture multilayer and strengthens the projection at patient operation position, and carries out the projection from a plurality of different angles, consequently the projection of this device can not all be sheltered from, can make the doctor who is carrying out the operation can not shelter from the picture of projector, avoids the skeleton image at patient's operation position to be sheltered from by the operation, makes the operation in-process be convenient for observe patient internal skeleton shape.
Drawings
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a top view of the present invention during a surgical procedure;
FIG. 4 is a schematic view of a data identification and motion capture instrument for a spinal region of a patient according to the present invention;
fig. 5 is a bottom view of the camera of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-equipment cabinet, 11-supporting rod, 12-telescopic rod, 13-universal wheel, 14-supporting leg, 2-projector, 21-transverse hanging rack, 22-longitudinal rack, 23-camera, 3-controller, 31-data identification, 32-motion capture instrument, 33-recognition equipment and 4-MR glasses.
Detailed Description
Referring to fig. 1 to 5, the present invention provides a technical solution: a radiation-free intraoperative spinal positioning device, comprising:
the equipment cabinet 1 is an operation platform, a supporting rod 11 is vertically arranged on a top platform, and a telescopic rod 12 is horizontally arranged at the top end of the supporting rod 11;
the horizontal hanging rack 21 is horizontally and fixedly arranged at the telescopic end of the telescopic rod 12, a longitudinal rack 22 is horizontally and fixedly arranged on the horizontal hanging rack 21, the horizontal hanging rack 21 and the longitudinal rack 22 are mutually vertically and alternately arranged, and at least one projector 2 is respectively hung on the horizontal hanging rack 21 and the longitudinal rack 22;
the projection direction of the projectors 2 is downward, the projection focuses of all the projectors 2 on the transverse hanging rack 21 and the longitudinal hanging rack 22 are the same, and the positions of the images projected by all the projectors 2 are overlapped; a camera 23 is hung at the bottom of the transverse hanging rack 21, and the shooting direction of the camera 23 is downward;
the MR glasses 4 are visual glasses of mixed reality;
the controller 3 is erected and installed on the equipment cabinet 1, all the projectors 2 are in data connection with the controller 3, the controller 3 is also connected with the identification equipment 33, the camera 23 and the MR glasses 4 are all electrically connected with the controller 3, and the MR glasses 4 are in data connection with the camera 23 through the controller 3;
the data identifier 31 is an identity identification identifier, is tightly adhered to the back of the patient and does not overlap with the surgical site, the data identifier 31 is matched with corresponding data stored in the controller 3, and the data identifier 31 is matched with the controller 3 through the identification device 33;
The bottom of the equipment cabinet 1 is uniformly provided with a plurality of universal wheels 13 and supporting legs 14, and the supporting legs 14 are hydraulic supporting rods, so that the equipment cabinet 1 can be conveniently and stably erected, and the stable projection position of the projector 2 is ensured;
the transverse hanging frame 21 and the longitudinal hanging frame 22 are provided with 4 projectors 2, and the four projectors 2 are hung above the surgical site of the patient, so that the projection is conveniently carried out from different directions, and the projected images are prevented from being completely shielded in the surgical process;
the controller 3 is a computer for processing and controlling data, and belongs to common equipment;
the telescopic rod 12 is an electric push rod, and the telescopic rod 12 is controlled by the controller 3, so that the projector 2 can be conveniently extended to a required position;
the identification device 33 is a data scanning camera, the projector 2 is a portable projector, and the device is simple and easy to operate;
the data identifier 31 is a tattoo paste with a two-dimensional code pattern, the data identifier 31 adhered to each patient is different, and the data identifier 31 adhered to each patient is in one-to-one correspondence with the spine skeleton CT virtual model stored in the controller 3 by the patient;
the distance range between the data mark 31 and the operation part is 10-30cm, so that the device is convenient to adhere, is waterproof and not easy to fall off, can be used as a calibration point of the position of the spine of a human body, cannot be cut to change the position in an operation, the data mark 31 can be positioned and also can be used as a data identification code, and the use is convenient;
the camera 23 is arranged below the intersection of the transverse hanging rack 21 and the longitudinal hanging rack 22, can be positioned at the center of an operation department for shooting, and is convenient for accurately shooting real-time image data.
In one embodiment of the utility model:
the embodiment of the utility model provides a radiation-free intraoperative spine positioning device, and the technical problems solved by the utility model are as follows: 1. in the operation process, patients and doctors are exposed to CT radiation, and radiation exceeding a safety threshold value is exposed for a long time, so that radiation-related diseases are easily caused; 2. because a C-shaped arm X-ray machine is needed in the operation, doctors cannot perform the operation on different patients continuously, frequently and uninterruptedly for multiple times, the operation can be performed again only by waiting for the radiation metabolism of the doctors and reducing the radiation quantity born by the bodies, the operation frequency of the doctors is greatly reduced, a plurality of patients can queue for the operation, the time for the patients to make an appointment and wait for the operation is increased, the pain of the patients is increased, and therefore, the patients cannot be treated by the operation in time by the traditional scheme; 3. when a doctor uses the C-shaped arm X-ray machine, the software operation process is complicated, the operation time is increased, and the operation risk is increased; 4. such devices are expensive to purchase and software is expensive to use, which requires the patient to undertake, placing a greater burden on the patient's home.
The realized technical effects are as follows: 1. the projector of the utility model carries out projection 2, the spine skeleton and the focus of a patient stored in the controller 3 are projected on the corresponding position of the spine of the body of the patient, and the projector is used for assisting the accurate judgment of the shape and the position of the spine of the patient by a doctor in the operation, so that the doctor can conveniently carry out the operation on the patient;
2. the device does not use a bone perspective device with radiation in the operation, so that neither a patient nor a doctor is subjected to the exposure hazard of the radiation in the operation, and the health of the device cannot be damaged;
3. because the device acts on the affected part of the spine of the patient through projection, doctors participating in the operation can conveniently observe the spine skeleton condition of the patient in the operation, the use is more convenient, and the patient who is performing the operation can be projected on the skin of the operation part to the matched skeleton image picture only by starting the projection;
4. this device has used four at least projectors 2, and the projecting image of every projector 2 overlaps completely, make this device overlap patient's skeleton picture multilayer and strengthen the projection at patient operation position, and carry out the projection from a plurality of different angles, consequently the projection of this device can not all be sheltered from, can make the doctor who is carrying out the operation can not shelter from the picture of projector, avoid the skeleton image of patient's operation position to be sheltered from by the operation, make in the operation process be convenient for observe patient internal bone shape.
In order to solve the above problems, the technical solution in the embodiments of the present invention has the following general idea:
for better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
When the utility model is manufactured, firstly, an equipment cabinet 1 is manufactured for placing and arranging various connecting wires, and a plurality of motion capture imaging patches of a motion capture instrument 32 can also be placed in the equipment cabinet 1, the patches are also conventionally called mark point patches, a plurality of universal wheels 13 are uniformly distributed at the bottom of the equipment cabinet 1 in a rectangular shape and are used for rolling the equipment cabinet 1, a hydraulic rod is arranged beside each universal wheel 13 to be used as a supporting leg 14, when the equipment cabinet is moved to an operation part, the supporting leg 14 can be extended, the universal wheels 13 are separated from the ground, the equipment cabinet 1 can be stably supported, a supporting rod 11 is vertically fixed at the top of the equipment cabinet 1, a telescopic rod 12 is horizontally fixed at the top of the supporting rod 11, the telescopic direction of the telescopic rod 12 is horizontal transverse telescopic, the telescopic rod 12 is an electric push rod, and is controlled by a controller 3, a transverse hanging frame 21 is arranged at the telescopic end of the telescopic rod 12, the transverse hanging rack 21 is fixedly provided with a longitudinal rack 22, the transverse hanging rack 21 and the longitudinal rack 22 are vertically staggered, and the transverse hanging rack 21 and the longitudinal rack 22 can be integrally extended or retracted through the telescopic rod 12;
the bottoms of the transverse hanging frame 21 and the longitudinal hanging frame 22 are provided with the small portable projectors 2, so that the hanging is convenient, and a larger number of projectors 2 can be installed, in the embodiment, 4 projectors 2 are used, as shown in fig. 2, the projected images of four projectors 2 are overlapped, the effect of a shadowless lamp is formed by arranging the projectors 2 for angle adjustment and fixing the overlapped projected images, even if one projector 2 is shielded, the rest projectors 2 can continue to project at the back spine operation position of the patient, the observation of the doctor is facilitated, and the doctor is better assisted in performing the operation;
the controller 3 is further installed at the top of the equipment cabinet 1, the controller 3 is further connected with the identification device 33, the identification device is a two-dimensional code data reading scanning camera, the identification device 33 and the telescopic rod 12 are controlled through the controller 3, and the controller 3 is a common operating computer;
a camera 23 is fixedly installed at the bottom of the intersection of the transverse hanging frame 21 and the longitudinal hanging frame 22, and is in data connection with the controller 3;
the MR glasses 4 are required to be installed, the MR glasses 4 are connected with the controller 3 in a data mode, and the MR glasses 4 are used for reading the shooting picture of the camera 23 and achieving interaction of virtual reality;
and still being connected motion capture appearance 32 on the controller 3, motion capture appearance 32 has a plurality of motion capture imaging paster of catching human limbs and trunk change, be convenient for carry out formation of image and position calibration to human backbone, and every patient has still set up data identification 31 on one's body, data identification 31 needs to fix at human back before the art, and it is far away from the operation position, data identification 31 is apart from between 10-30cm in affected part, can not influence the operation, still need fix on the human body simultaneously, can not drop because of the washing, therefore this data identification 31 has used the tattoo subsides, and use the waterproof tattoo subsides of two-dimensional code of longer time solidification on human skin surface, be used for carrying out data matching and the sign of making things convenient for projecting apparatus 2 location with identification equipment 33.
When the utility model is used, the patent application numbers disclosed in 1/8/2021 are as follows: CN201910072577.6 is a software application basis for data transmission and matching of the present invention.
The device is well debugged, the data mark 31 is fixed on the back of a human body, a CT device is used for reading a spine skeleton image of a surgical part of the human body into the controller 3 before surgery, and the skeleton image data shot by the CT device of the same patient is matched with the data mark 31 attached to the skin of the patient and stored;
in the operation process, preoperative preparation work is firstly carried out, when the device is required to be positioned in an auxiliary mode, a plurality of motion capture imaging patches of the motion capture instrument 32 of the device are attached to two sides of the spine of the back of a human body, then the equipment cabinet 1 is pushed to the side of an operating table, the supporting legs 14 are lifted, the equipment cabinet 1 is stably erected and does not displace any more, the telescopic rods 12 are adjusted to enable the transverse hanging rack 21 and the longitudinal hanging rack 22 to extend out of the upper portion of the operation position of a patient, and accurate position of each projector 2 hung at the bottoms of the transverse hanging rack 21 and the longitudinal hanging rack 22 is ensured with the aim of not shielding operation;
then the data identification 31 is scanned by the recognition device 33, the matched information is called from the controller 3 and transmitted to the projector 2, the projector 2 projects the spine skeleton picture shot by the CT to the operation position, the images of each projector 2 are completely overlapped and the position is accurate, the projection position takes the data identification 31 as the coordinate reference, thus the spine skeleton picture can keep accurate and consistent with the position of the skeleton shot by the CT, the projection is completed by the action capture instrument 32 to carry out position calibration, the precise matching of the skeleton position under multiple verifications is ensured, thus the device can assist the doctor to carry out the operation, no additional software setting operation is needed in the using process, the matching of various parameters is not needed, the operation can be completed by only checking the data identification 31, the operation is simple, the spine skeleton picture in the operation is shot by the camera 23, and the observation is carried out by the MR glasses 4, the operation position that can be accurate judgement preset can be with skeleton and the intraoperative actual conditions perfect adaptation that CT shot in advance, forms mixed reality interactive operation supplementary, and the intraoperative judgement is more accurate, does not have the radiation moreover, protects doctor and patient's health, withdraws this device after the operation is accomplished, and data identification 31 is the subsides of tattooing, can drop automatically after 1-2 weeks, and this convenient to use location is accurate.
MR glasses, namely Mediated Reality (MR), are proposed by SteveMann, the parent of intelligent hardware, professor toronto university, and are known as Mediated Reality (MR). VR is a pure virtual digital picture, Mixed Reality including AR is a virtual digital picture + naked eye Reality, and MR is a digital Reality + virtual digital picture.
In the seventies of the last century, in order to enhance the visual effect of the user and enable the user to 'see' the surrounding environment in any situation, the wearable intelligent hardware is designed by Steve Mann, and the wearable intelligent hardware is considered as a preliminary exploration on the MR technology;
VR is a pure virtual digital picture, while AR virtual digital picture plus naked eye reality, MR is a digitized reality plus virtual digital picture. Conceptually, MR and AR are closer and are half of real and half of virtual images, but the conventional AR technology uses the prism optical principle to refract real images, the viewing angle is not as large as the VR viewing angle, and the definition is also affected.
The MR technology combines the advantages of VR and AR, and can better embody the AR technology. Meanwhile, the large viewing angle of the easy pupil science and technology VR is combined into the MR device, and the condition that the viewing angle of the AR is insufficient can be made up. Both AR and VR technologies are subsets of MR, and one pair of MR glasses can do both AR and VR, and Hololens glasses are used in this embodiment.
In addition, in the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.
Claims (8)
1. A radiation-free intraoperative spinal positioning device, comprising:
the equipment cabinet (1) is an operation platform, a supporting rod (11) is vertically arranged on a top platform, and a telescopic rod (12) is horizontally arranged at the top end of the supporting rod (11);
the horizontal hanging rack (21) is horizontally and fixedly arranged at the telescopic end of the telescopic rod (12), a longitudinal rack (22) is horizontally and fixedly arranged on the horizontal hanging rack (21), the horizontal hanging rack (21) and the longitudinal rack (22) are mutually vertically and alternately arranged, and at least one projector (2) is respectively hung on the horizontal hanging rack (21) and the longitudinal rack (22);
the projection direction of the projectors (2) is downward, the projection focuses of all the projectors (2) on the transverse hanging rack (21) and the longitudinal hanging rack (22) are the same, and the positions of the images projected by the projectors (2) are overlapped; a camera (23) is hung at the bottom of the transverse hanging rack (21), and the shooting direction of the camera (23) is downward;
MR glasses (4) which are visual glasses of mixed reality;
the controller (3) is erected and installed on the equipment cabinet (1), all the projectors (2) are in data connection with the controller (3), the controller (3) is also connected with identification equipment (33), the camera (23) and the MR glasses (4) are all electrically connected with the controller (3), and the MR glasses (4) are in data connection with the camera (23) through the controller (3);
the data identifier (31) is an identity identification identifier, is tightly adhered to the back of the patient and does not overlap with the surgical site, the data identifier (31) is matched with corresponding data stored in the controller (3), and the data identifier (31) is matched with the controller (3) through the identification device (33);
the motion capture instrument (32) is provided with a plurality of motion capture imaging patches which can be separately adhered to the back of the patient, and the motion capture instrument (32) is electrically connected with the controller (3).
2. The non-radioactive intraoperative spinal positioning device of claim 1, wherein: the bottom of the equipment cabinet (1) is uniformly provided with a plurality of universal wheels (13) and supporting legs (14), and the supporting legs (14) are hydraulic supporting rods.
3. The non-radioactive intraoperative spinal positioning device of claim 1, wherein: the transverse hanging rack (21) and the longitudinal hanging rack (22) are provided with 4 projectors (2), and the four projectors (2) are hung above the surgical site of the patient.
4. The non-radioactive intraoperative spinal positioning device of claim 1, wherein: the controller (3) is a computer for processing and controlling data.
5. The non-radioactive intraoperative spinal positioning device of claim 1, wherein: the telescopic rod (12) is an electric push rod, and the telescopic rod (12) is controlled by the controller (3).
6. The non-radioactive intraoperative spinal positioning device of claim 1, wherein: the identification device (33) is a data scanning camera, and the projector (2) is a portable projector.
7. The non-radioactive intraoperative spinal positioning device of claim 1, wherein: the data identification (31) is a tattoo paste with a two-dimensional code pattern, the data identification (31) adhered to each patient is different, and the data identification (31) adhered to each patient corresponds to the spine skeleton CT virtual model stored in the controller (3) of the patient one by one;
the data identifier (31) is located at a distance ranging between 10-30cm from the surgical site.
8. The non-radioactive intraoperative spinal positioning device of claim 1, wherein: the camera (23) is arranged below the junction of the transverse hanging rack (21) and the longitudinal rack (22).
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| CN202121273414.3U CN216021361U (en) | 2021-06-08 | 2021-06-08 | Non-radiation spinal column positioning device in operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116549111A (en) * | 2023-04-20 | 2023-08-08 | 中国人民解放军总医院第七医学中心 | Holographic imaging technical device for developmental dislocation pelvis osteotomy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116549111A (en) * | 2023-04-20 | 2023-08-08 | 中国人民解放军总医院第七医学中心 | Holographic imaging technical device for developmental dislocation pelvis osteotomy |
| CN116549111B (en) * | 2023-04-20 | 2023-12-12 | 中国人民解放军总医院第七医学中心 | Holographic imaging technical device for developmental dislocation pelvis osteotomy |
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