CN113017815A - Intraoperative bending rod system for posterior spinal rod nailing and fixing - Google Patents
Intraoperative bending rod system for posterior spinal rod nailing and fixing Download PDFInfo
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- CN113017815A CN113017815A CN202110484355.2A CN202110484355A CN113017815A CN 113017815 A CN113017815 A CN 113017815A CN 202110484355 A CN202110484355 A CN 202110484355A CN 113017815 A CN113017815 A CN 113017815A
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- rod
- bending
- intraoperative
- posterior spinal
- simulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7065—Devices with changeable shape, e.g. collapsible or having retractable arms to aid implantation; Tools therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/361—Image-producing devices, e.g. surgical cameras
Abstract
The invention discloses an intraoperative rod bending system for posterior spinal rod nailing and fixing, and relates to the field of rod bending devices. The key points of the technical scheme comprise: an aseptic worktop; the rod bending device is used for bending the titanium rod; further comprising: and the projection device is used for projecting a simulation rod shadow matched with the shape of the bent titanium rod on the sterile operating platform. The invention realizes accurate bending by utilizing the projection technology, has the advantages of accurate matching, rapidness, time saving, good standardized quality, reduction of repeated invalid operation, independence of an operator, reduction of sterile disinfection links, simplicity and easiness in learning, and has great promotion effect on operation optimization.
Description
Technical Field
The invention relates to the field of rod bending devices, in particular to an intraoperative rod bending system for a posterior spinal rod nailing fixation.
Background
Posterior spinal fusion is the classic and mainstream surgical treatment for treating intervertebral disc degenerative disease, spinal instability, vertebral body slippage, spinal deformity and other diseases. The fixation and restoration of the sagittal plane balance of the spine and the maintenance of the physiological curvature by using a posterior nail-rod system are common knowledge of spinal surgical operation. And the subsequent nail rod system is used as a main fixing device, and the bending curvature of the titanium rod is consistent with the physiological curvature, so that the postoperative effect can be best ensured.
Clinically, the common way of bending the rod is to use a rod bending device to perform rod bending operation after the operator performs the intraoperative evaluation on the sagittal plane curvature of the patient image. But the rod bending device is adopted to directly bend the rod, the situation that the bent titanium rod is not matched easily occurs, and then the rod bending needs to be repeated. On one hand, the repeated bending of the rod can prolong the operation time, and on the other hand, the yield strength, the rigidity and the fatigue resistance of the titanium rod can be reduced.
In order to improve the accuracy of the bending rod, an angle measuring device is also used for assisting the bending rod at present. However, the angle measuring device is a fixed parameter range, so that accurate bending of the rod cannot be realized, and the angle measuring device needs to perform an aseptic disinfection link, so that the clinical workload is increased.
Therefore, how to bend the rod accurately and rapidly and meet the requirements of clinical operation is a difficult point to overcome in the field.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the intraoperative bending rod system for the spinal posterior nail rod fixation, which has the advantages of accurate matching, rapidness, time saving, good standardization quality, reduction of repeated ineffective operation, independence of an operator, reduction of aseptic disinfection links, simplicity and easiness in learning and great promotion effect on optimization of the operation.
In order to achieve the purpose, the invention provides the following technical scheme:
an intraoperative rod bending system for use in posterior spinal rod fixation, comprising:
an aseptic worktop;
the rod bending device is used for bending the titanium rod;
further comprising:
and the projection device is used for projecting a simulation rod shadow matched with the shape of the bent titanium rod on the sterile operating platform.
By adopting the scheme, an operator can realize accurate rod bending by comparing the rod bending device with the simulation rod shadow on the sterile operating platform, the operation is quick and time-saving, the operation is simple, repeated invalid operation can be reduced, and the disinfection link of the reference template is reduced; meanwhile, the simulation rod shadow is adopted, so that the operation of bending the rod does not depend on the operator himself, and the operation time can be obviously saved.
Further, the projection device and the sterile operating platform are arranged separately and are not in contact with each other.
Further, the projection device includes a pico projector.
Through adopting above-mentioned scheme, miniature projector has small in size, the advantage of being convenient for to hold, and the operator holds miniature projector and carries out the projection to aseptic technique platform, can not contact with aseptic technique platform, reduces aseptic disinfection link, accords with clinical operation requirement.
Further, the system further comprises:
the bending rod simulation device is used for simulating and forming a real image of the bent titanium rod;
the projection device projects the real object image onto the sterile operating table according to the proportion of 1:1 to form the simulation rod shadow.
By adopting the scheme, compared with the manual evaluation of the size and the bending degree of the titanium rod, the bending rod simulation device has the advantages of convenience in operation, high speed and accurate data.
Further, the system further comprises:
the X-ray camera device is used for acquiring an X-ray film comprising a spine and a screw;
and the bending simulation device simulates the bending of the titanium rod according to the X-ray sheet and forms the object image.
Further, the bending rod simulation device comprises a shooting module or a leading-in module for acquiring the X-ray film.
By adopting the scheme, the shooting module and the leading-in module can be used for acquiring X-ray films, and the X-ray film guiding device has the advantages of convenience and flexibility in operation.
Furthermore, the carrier of the bending rod simulation device is intelligent equipment, and the intelligent equipment comprises a mobile phone, a tablet personal computer, a notebook computer or a desktop computer.
Further, the system further comprises:
and the rod cutting device is used for cutting the titanium rod with the required length.
Further, a measuring scale is integrated on the rod cutting device.
In conclusion, the invention has the following beneficial effects:
1. the invention has the advantages of accurate matching, rapidness, time saving, good standardization quality, reduction of repeated invalid operation, independence of the operator, reduction of sterile disinfection links, simplicity and easy learning, and great promotion effect on operation optimization;
2. the operator can actually bend the rod on the sterile operating table according to the simulated rod shadow, the operation is simple and feasible, the link of sterilizing the reference template is reduced, the feasibility of accurate rod bending is provided, and the operator is liberated.
Drawings
FIG. 1 is a first structural schematic view of an intraoperative rod bending system for posterior spinal rod fixation in example 1;
FIG. 2 is a second structural view of the intraoperative rod bending system for posterior spinal rod fixation in example 1;
fig. 3 is a schematic structural view of an intraoperative rod bending system for posterior spinal rod fixation in example 2.
In the figure: 1. an aseptic worktop; 2. a rod bending device; 3. a bar cutting device; 4. a projection device; 5. a rod bending simulator; 6. an X-ray imaging device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Example 1:
an intraoperative rod bending system for posterior spinal rod nailing and fixation, referring to fig. 1 and 2, comprises a sterile operating table 1, a rod bending device 2 and a projection device 4; the projection device 4 is used for projecting a simulation rod shadow matched with the shape of the bent titanium rod object on the sterile operating table 1; an operator can realize accurate rod bending by comparing the rod bending device 2 with the simulation rod shadow on the sterile operating platform 1, the operation is quick and time-saving, the operation is simple, repeated invalid operation can be reduced, and the disinfection link of a reference template is reduced; meanwhile, the simulation rod shadow is adopted, so that the operation of bending the rod does not depend on the operator himself, and the operation time can be obviously saved.
Referring to fig. 1, the projection device 4 and the sterile operating table 1 are arranged separately and are not in contact with each other, so that the sterile disinfection links can be reduced, and the requirements of clinical operation are met; specifically, the projection device 4 in this embodiment is a miniature projector, which has the advantages of small size and convenient holding; when the rod is bent, an operator wearing sterile clothes executes the rod bending operation, and another operator holds the projection device 4 to project on the sterile operation table 1, so that the operator holding the projection device 4 can not wear the sterile clothes because of no contact, and the sterile disinfection links can be reduced; in other alternative embodiments, a separate fixing bracket may be provided for the projection device 4, which is not limited herein.
Referring to fig. 1, the system in this embodiment further includes a rod cutting device 3, and a measurement scale is integrated on the rod cutting device 3, so that a titanium rod with a required length can be cut through the rod cutting device 3; in this embodiment, both the rod bending device 2 and the rod cutting device 3 belong to the prior art, and are not described herein.
The working principle is as follows:
the invention utilizes the projection technology to form a virtual reference template, namely a simulated rod shadow, so that an operator can quickly and accurately bend the rod, and the virtual and contactless form meets the requirements of clinical operation, thereby having great promotion effect on the optimization of the operation.
Example 2:
an intraoperative rod bending system for posterior spinal rod nailing and fixation is disclosed, referring to fig. 3, based on embodiment 1, the system in the embodiment further comprises a rod bending simulation device 5 and an X-ray photographing device 6; the X-ray photographing device 6 is used for acquiring an X-ray film including a spine and a screw, and specifically, the X-ray photographing device 6 may be a C-arm machine, an O-arm machine, a G-arm machine, or the like, which is not limited herein; the bent rod simulation device 5 is used for simulating and forming a real image of the bent titanium rod, and specifically, the bent rod simulation device 5 simulates the bending of the titanium rod according to an X-ray film and forms the real image; then the projector 4 projects the real object image on the sterile operating table 1 according to the proportion of 1:1 to form a simulation rod shadow.
Referring to fig. 3, in this embodiment, a carrier of the rod bending simulation apparatus 5 is an intelligent device, simulation software is installed in the intelligent device, and the intelligent device may be a mobile phone, a tablet computer, a notebook computer, a desktop computer, or the like, which is not limited herein; the curved rod simulation device 5 includes a shooting module or a importing module for obtaining X-ray films, that is, in this embodiment, the curved rod simulation device 5 may obtain X-ray films by shooting a screen of the X-ray imaging device 6 with the shooting module, and may import data of the X-ray films into the curved rod simulation device 5 with the importing module.
Referring to fig. 3, in the present embodiment, a rod bending simulation apparatus 5 is used to simulate a rod bending, which has the advantages of high speed and accurate data, and in other alternative embodiments, a rod bending may also be simulated manually and calculated to form a real image of a bent titanium rod, which is not limited herein; for the simulation process, there are various ways in the prior art, such as building a three-dimensional model; in the embodiment, the simulation process comprises the steps of firstly estimating the difference between the spine form and the ideal spine curvature in the X-ray film, and dividing the spine into two parts for correction by taking the operation segment as a rotation center and a separation line in software; after the outline frames of the upper part and the lower part are selected and fixed, the operation section is taken as a rotation center, and the upper part and the lower part are relatively rotated, so that the spine form can reach the expected ideal spine curvature; under the condition of correcting to an expected ideal curvature, selecting relevant reference points of the spine trailing edge (or the vertebral canal central line) at multiple points, and automatically extracting and fitting a spine curvature line by software to serve as a titanium rod bending line; and then, taking the embedded pedicle screw cap as a reference point, translating the fitted spinal curvature line, reconstructing the titanium rod with the diameter required by the operation by software, matching the nail rod, and recording relevant parameters of the titanium rod, such as the diameter and the total length, by the software so as to obtain a real object image.
The working principle is as follows:
the bending rod simulation device 5 using the intelligent device as a carrier is adopted in the embodiment to simulate the bending rod, so that a real image of the bent titanium rod is formed, and the bending rod simulation device has the advantages of convenience in operation, high speed and accurate data.
Claims (9)
1. An intraoperative rod bending system for use in posterior spinal rod fixation, comprising:
an aseptic worktop;
the rod bending device is used for bending the titanium rod;
it is characterized by also comprising:
and the projection device is used for projecting a simulation rod shadow matched with the shape of the bent titanium rod on the sterile operating platform.
2. The intraoperative rod bending system for posterior spinal rod fixation according to claim 1, wherein: the projection device and the sterile operating platform are arranged separately and are not in contact with each other.
3. The intraoperative rod bending system for posterior spinal rod fixation according to claim 1, wherein: the projection device includes a pico projector.
4. The intraoperative rod bending system for posterior spinal rod fixation according to claim 1, wherein: the system further comprises:
the bending rod simulation device is used for simulating and forming a real image of the bent titanium rod;
the projection device projects the real object image onto the sterile operating table according to the proportion of 1:1 to form the simulation rod shadow.
5. The intraoperative rod bending system for posterior spinal rod fixation according to claim 4, wherein: the system further comprises:
the X-ray camera device is used for acquiring an X-ray film comprising a spine and a screw;
and the bending simulation device simulates the bending of the titanium rod according to the X-ray sheet and forms the object image.
6. The intraoperative rod bending system for posterior spinal rod fixation according to claim 5, wherein: the bending rod simulation device comprises a shooting module or a leading-in module for obtaining the X-ray film.
7. The intraoperative rod bending system for posterior spinal rod fixation according to claim 4, wherein: the carrier of the bent rod simulation device is intelligent equipment which comprises a mobile phone, a tablet personal computer, a notebook computer or a desktop computer.
8. The intraoperative rod bending system for posterior spinal rod fixation according to claim 1, wherein: the system further comprises:
and the rod cutting device is used for cutting the titanium rod with the required length.
9. The intraoperative rod bending system for posterior spinal rod fixation according to claim 8, wherein: and a measuring scale is integrated on the rod cutting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110484355.2A CN113017815A (en) | 2021-04-30 | 2021-04-30 | Intraoperative bending rod system for posterior spinal rod nailing and fixing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110484355.2A CN113017815A (en) | 2021-04-30 | 2021-04-30 | Intraoperative bending rod system for posterior spinal rod nailing and fixing |
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| Publication Number | Publication Date |
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| CN113017815A true CN113017815A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110484355.2A Pending CN113017815A (en) | 2021-04-30 | 2021-04-30 | Intraoperative bending rod system for posterior spinal rod nailing and fixing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117257455A (en) * | 2023-11-21 | 2023-12-22 | 中国人民解放军总医院第一医学中心 | Lumbar operation fixing rod pre-bending method and device |
-
2021
- 2021-04-30 CN CN202110484355.2A patent/CN113017815A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117257455A (en) * | 2023-11-21 | 2023-12-22 | 中国人民解放军总医院第一医学中心 | Lumbar operation fixing rod pre-bending method and device |
| CN117257455B (en) * | 2023-11-21 | 2024-02-20 | 中国人民解放军总医院第一医学中心 | Lumbar operation fixing rod pre-bending method and device |
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