CN113100900A - Intelligent nail plate system for thoracolumbar anterior approach and control method - Google Patents
Intelligent nail plate system for thoracolumbar anterior approach and control method Download PDFInfo
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- CN113100900A CN113100900A CN202110423931.2A CN202110423931A CN113100900A CN 113100900 A CN113100900 A CN 113100900A CN 202110423931 A CN202110423931 A CN 202110423931A CN 113100900 A CN113100900 A CN 113100900A
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
-
- 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
- A61B17/7059—Cortical plates
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8085—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with pliable or malleable elements or having a mesh-like structure, e.g. small strips
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
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- 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
- A61B90/06—Measuring instruments not otherwise provided for
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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
- A61B2017/00017—Electrical control of surgical instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
- A61B2017/00544—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated pneumatically
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00893—Material properties pharmaceutically effective
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
An intelligent screw plate system for thoracolumbar anterior approach and a control method thereof are disclosed, the intelligent screw plate system is composed of a screw plate 1, a piezoelectric detection sheet 2 and a pedicle screw 3. After a patient completes a nail plate fixing operation, the pedicle screw 3 is fixed on the nail plate 1, the piezoelectric sheet 2 is arranged between the nail plate 1 and the pedicle screw 3, due to the piezoelectric effect, the piezoelectric sheet 2 can generate potential difference under the action of pressure between the pedicle screw 3 and the nail plate 1, the pressure between the pedicle screw and the nail plate can be obtained currently by detecting and amplifying the voltage and transmitting the voltage to an upper computer through the wireless transmission module, and when the pressure is smaller than a preset threshold value, the current screw can be considered to be loosened.
Description
Technical Field
The present invention relates generally to an intelligent thoracolumbar anterior nail plate system and control method, and more particularly to a procedure that can be secured to a patient's spine for the anterolateral surgical correction of conditions such as scoliosis, also known as scoliosis.
Background
At present, after surgery is carried out on the uncinate joint of a patient in medical science, the screw plate system is commonly used for fixing the vertebra of the patient, however, the vertebra of the patient can be displaced with time, so that the screw is loosened, and the treatment effect is reduced. Threaded fixation elements such as threaded rods or bone screws, as well as slotted fixation elements of conventional bone fixation devices, such as fixation plates or lateral fixation blocks, are often deficient in design because they do not form precisely a 90 degree angle and the nut cannot be tightened securely with the threaded fixation element. In order to overcome these disadvantages as described above. The prior art bone fixation plate arrangements are intended to enhance the fastening of threaded fixation elements to the recessed fixation elements of conventional bone fixation devices. However, the above-described bone fixation plates fail to provide an effective remedy. The prior art fixing elements are usually provided on both faces of the slot or through hole, respectively, with a concave arcuate surface capable of fixing the arcuate projecting surface of the nut with a threaded portion and a projecting arcuate surface of the arresting portion of the fixing element. Considering that the centers of the two arc-shaped concave surfaces are fixed, the fixing element is located on a line connecting the two centers when the fixing nut is tightened. When tightened, the fixing element with the threaded portion and the fixing element with the slot form a fixed and unchangeable angle. However, if the retaining nut is not tightened, the angle may be adjusted slightly. It has to be noted here that the fixing nut has to be tightened in order for the fixing device to work effectively. Even with tightening of the fixation nut, the risk of loosening of the screw is increasing as the amount of patient mobility increases.
Disclosure of Invention
In order to solve the problem, the invention designs the intelligent nail plate system suitable for the thoracolumbar anterior approach, which can monitor the fastening condition of the nail plate screws in real time so as to avoid the screw loosening phenomenon.
The intelligent nail plate system consists of a nail plate 1, a piezoelectric detection sheet 2 and a pedicle screw 3, and is shown in figure 1.
After a patient completes a nail plate fixing operation, the pedicle screw 3 is fixed on the nail plate 1, the piezoelectric detection piece 2 is arranged between the nail plate 1 and the pedicle screw 3, due to the piezoelectric effect, the piezoelectric detection piece 2 can generate potential difference under the action of pressure between the pedicle screw 3 and the nail plate 1, the pressure between the current pedicle screw and the nail plate can be obtained by detecting and amplifying the voltage and transmitting the voltage to an upper computer through the wireless transmission module, and when the pressure is smaller than a preset threshold value, the current screw can be considered to be loosened.
The piezoelectric sensing piece includes, as shown in fig. 2, insulating layers 4 and 8, electrode layers 5 and 7, and a piezoelectric ceramic layer 6.
The electrode layer 5 and/or the electrode layer 7 has a variable shape A and a variable shape B, a micro heater is arranged on the electrode layer 5 and/or the electrode layer 7, the electrode layer 5 and/or the electrode layer 7 keeps the shape A with smaller thickness along the direction of the pedicle screw 3 at normal temperature, and the shape A is deformed into the shape B with larger thickness along the direction of the pedicle screw 3 after being heated; when the pressure between the pedicle screw and the screw plate is less than a predetermined threshold, the micro-heater is activated and the electrode layer 5 and/or the electrode layer 7 changes from shape a to shape B.
According to the control method of the thoracolumbar anterior intelligent nail plate system, the pressure between the current pedicle screw and the nail plate can be obtained by detecting and amplifying the voltage of the piezoelectric detection sheet 2 and transmitting the voltage to the upper computer through the wireless transmission module, and when the pressure is smaller than a preset threshold value, the current screw can be considered to be loosened.
The pressure between the pedicle screw and the nail plate is controlled to be kept within a preset range by heating the insulating layers 4, 8 and/or the electrode layers 5, 7.
According to the technical scheme, the pressure change between the pedicle screw and the nail plate can be effectively monitored, the pressure between the pedicle screw and the nail plate is ensured to be in a reasonable range, the service life of the thoracolumbar anterior intelligent nail plate system is prolonged, when the pressure between the pedicle screw and the nail plate is abnormal, early warning is timely carried out, and the risk of disease deterioration is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an intelligent nail plate system;
FIG. 2 is a schematic view of a piezoelectric sensing patch;
fig. 3 is a schematic diagram of a layered structure.
Detailed Description
The invention is further illustrated by the following examples.
In order to make the objects and technical advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
An intelligent nail plate system comprises a nail plate 1, a piezoelectric detection sheet 2 and a pedicle screw 3, as shown in figure 1.
After a patient completes a nail plate fixing operation, the pedicle screw 3 is fixed on the nail plate 1, the piezoelectric detection piece 2 is arranged between the nail plate 1 and the pedicle screw 3, due to the piezoelectric effect, the piezoelectric detection piece 2 can generate potential difference under the action of pressure between the pedicle screw 3 and the nail plate 1, the pressure between the current pedicle screw and the nail plate can be obtained by detecting and amplifying the voltage and transmitting the voltage to an upper computer through the wireless transmission module, and when the pressure is smaller than a preset threshold value, the current screw can be considered to be loosened.
The piezoelectric sensing piece includes, as shown in fig. 2, insulating layers 4 and 8, electrode layers 5 and 7, and a piezoelectric ceramic layer 6.
The friction between the insulating layer 4 and the electrode layer 5 is E1The frictional force between the electrode layer 5 and the piezoelectric ceramic layer 6 is F1，E1Less than F1(ii) a The friction between the insulating layer 8 and the electrode layer 7 is E2The frictional force between the electrode layer 7 and the piezoelectric ceramic layer 6 is F2，E2Less than F2。
In another embodiment, alternatively, the electrode layer 5 and/or the electrode layer 7 has a variable shape a and a variable shape B, a micro heater is disposed on the electrode layer 5 and/or the electrode layer 7, and the electrode layer 5 and/or the electrode layer 7 maintains the shape a with a smaller thickness along the pedicle screw 3 at normal temperature, and is heated to be deformed into the shape B with a larger thickness along the pedicle screw 3. When the pressure between the pedicle screw and the screw plate is less than a predetermined threshold, the micro-heater is activated and the electrode layer 5 and/or the electrode layer 7 changes from shape a to shape B.
In another embodiment, alternatively, the electrode layer 5 and/or the electrode layer 7 has a variable shape a and a variable shape B, a micro heater is disposed on the electrode layer 5 and/or the electrode layer 7, and the electrode layer 5 and/or the electrode layer 7 maintains the shape B with a larger thickness along the pedicle screw 3 direction at normal temperature, and is heated to be deformed into the shape a with a smaller thickness along the pedicle screw 3 direction. When the pressure between the pedicle screw and the screw plate is greater than a predetermined threshold, the micro-heater is activated and the electrode layer 5 and/or the electrode layer 7 changes from shape B to shape a.
In another embodiment, alternatively, the insulation layer 4 and/or the insulation layer 8 is a balloon structure, a micro-heater and a communication device are arranged inside the balloon, when the pressure between the pedicle screw and the nail plate is smaller than a predetermined threshold value, the micro-heater is started, the thickness of the balloon is increased, and the pressure between the pedicle screw and the nail plate is controlled to be kept within a preset range.
In another embodiment, alternatively, the insulation layer 4 and/or the insulation layer 8 is a balloon structure, and the balloon is internally provided with an air exhausting device and a communication device, wherein when the pressure between the pedicle screw and the nail plate is greater than a predetermined threshold value, the air exhausting device is started, the thickness of the balloon is reduced, and the pressure between the pedicle screw and the nail plate is controlled to be kept within a preset range.
The components of the smart nail plate system may be made of biologically acceptable materials suitable for medical applications, including metals, synthetic polymers, ceramics, and bone materials and/or composites thereof. For example, the components of the smart external fixation clamps for spinal rehabilitation status monitoring, individually or collectively, may be made from materials such as stainless steel alloys, pure titanium, titanium alloys, superelastic titanium alloys, cobalt-chromium alloys, superelastic metals, alloys, ceramics and composites thereof, e.g., calcium phosphate, thermoplastics such as polyaryletherketones, including Polyetheretherketones (PEEK), Polyetherketoneketones (PEKK) and Polyetherketones (PEK), carbon-PEEK composites, PEEK-BaSO 4 polymer rubbers, polyethylene terephthalate (PET), fabrics, silicones, polyurethanes, silicone-polyurethane copolymers, polymer rubbers, polyolefin rubbers, hydrogels, semi-rigid and rigid materials, elastomers, rubbers, thermoplastic elastomers, thermoset elastomers composites, polymers including polyphenylenes, polyamides, polyimides, polymers, and composites, Polyetherimide, polyethylene, epoxy resin. It may also be autograft bone material, allograft, xenograft or transgenic cortical and/or cortical cancellous bone, as well as tissue growth or differentiation factors, partially resorbable materials, e.g., composite metals and calcium-based ceramics, composites of PEEK and resorbable polymers, fully resorbable materials, e.g., calcium-based ceramics, e.g., calcium phosphate, tricalcium phosphate (TCP), Hydroxyapatite (HA) -TCP, calcium sulfate or other resorbable polymers, e.g., polyglycolide, poly tyrosine carbonate, polycarboxylic acids and combinations thereof.
The components of the smart nail plate system may have a material composite, including the materials described above, to achieve various desired characteristics, such as strength, stiffness, elasticity, compliance, biomechanical properties, durability and radiolucency or imaging preference. The components of the smart pegboard system, individually or collectively, may also be made of heterogeneous materials, such as a combination of two or more of the above materials. The components of the smart pegboard system may be integrally formed, integrally connected, or include fastening elements and/or instruments.
The smart nail plate system may be open or micro-open, minimally invasive and/or minimally invasive, including percutaneous surgical techniques, to deliver and introduce instrumentation and/or spinal implants, such as bone nails. A surgical site within a patient's body, including a single or multiple levels of the spine. Multiple set screws and/or over-angle placement to resist pull-out from the vertebral tissue. In some embodiments, the spinal implant may include a spinal construct, one or more bone fasteners, an interbody implant, a spinal rod, a tether, and/or a connector.
Preferably, as shown in fig. 3, the pedicle screw comprises a layered structure, which comprises a protective layer 9, a sealing layer, a phase change layer 10, a sealing layer and a central layer 11 from outside to inside; the protective layer 9 and the central layer 11 may be titanium, titanium alloy, stainless steel, cobalt chromium or any combination thereof; the sealing layer is typically a film material; the phase change layer 10 comprises a phase change material that is switchable between a solid state and a liquid/glassy state, preferably, the solid state is below 20 ℃ and the liquid/glassy state is above 30 ℃, the solid state is maintained during the operation stage, sufficient rigidity support is provided for the spine of the patient, and the liquid/glassy state is slowly changed after the operation is finished, so that better comfort is provided for the patient.
Preferably, the top layer cladding of pedicle of vertebral arch screw has double-deck film, is provided with the micropore on the double-deck film, and double-deck film is inside to be filled with the multiple medicament or the treatment medicine that help the skeleton to grow fast.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make possible variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above, and therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides an intelligence nail board system of chest lumbar vertebrae front road which characterized in that: including nail board (1), piezoelectricity detects piece (2), pedicle of vertebral arch screw (3) are fixed on nail board (1), have piezoelectricity piece (2) between nail board (1) and pedicle of vertebral arch screw (3), because the effect of piezoelectric effect, piezoelectric piece (2) can produce the potential difference under the effect of the pressure between pedicle of vertebral arch screw (3) and nail board (1), through detecting to this voltage, enlarge and transmit the host computer through wireless transmission module and can acquire the pressure size between current pedicle of vertebral arch screw and the nail board.
2. The thoracolumbar anterior intelligent nail plate system according to claim 1, wherein: a piezoelectric sheet includes insulating layers (4, 8), electrode layers (5, 7) and a piezoelectric ceramic layer (6).
3. The intelligent nail plate system for thoracolumbar anterior approach according to claims 1-2, wherein: the electrode layer (5) and/or the electrode layer (7) have variable shapes A and B, a micro heater is arranged on the electrode layer (5) and/or the electrode layer (7), the electrode layer (5) and/or the electrode layer (7) keep the shape A with smaller thickness along the direction of the pedicle screw (3) at normal temperature, and after being heated, the electrode layer and/or the electrode layer (7) is deformed into the shape B with larger thickness along the direction of the pedicle screw (3); when the pressure between the pedicle screw and the screw plate is less than a predetermined threshold, the micro-heater is activated and the electrode layer (5) and/or the electrode layer (7) changes from shape a to shape B.
4. The control method of the thoracolumbar anterior intelligent nail plate system according to claim 1, characterized in that: the pressure between the current pedicle screw and the screw plate can be obtained by detecting and amplifying the voltage of the piezoelectric plate (2) and transmitting the voltage to an upper computer through a wireless transmission module, and when the pressure is smaller than a preset threshold value, the current screw can be considered to be loosened.
5. The control method of the thoracolumbar anterior intelligent nail plate system according to claim 4, characterized in that: the pressure between the pedicle screw and the screw plate is controlled to be kept within a preset range by heating the insulating layers (4, 8) and/or the electrode layers (5, 7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423931.2A CN113100900B (en) | 2021-04-20 | 2021-04-20 | Intelligent screw plate system for thoracolumbar anterior approach and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110423931.2A CN113100900B (en) | 2021-04-20 | 2021-04-20 | Intelligent screw plate system for thoracolumbar anterior approach and control method |
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| CN113100900A true CN113100900A (en) | 2021-07-13 |
| CN113100900B CN113100900B (en) | 2023-07-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100019172A1 (en) * | 2021-07-20 | 2023-01-20 | Tsq Global S R L | DEVICE FOR OSTEOSYNTHESIS |
| IT202100019154A1 (en) * | 2021-07-20 | 2023-01-20 | Tsq Global S R L | DEVICE FOR OSTEOSYNTHESIS |
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| CN102322983A (en) * | 2011-08-05 | 2012-01-18 | 中国水利水电科学研究院机电所 | Bolt fastening state monitoring device and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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