CN111481283A - Preparation method of 3D printer surface guide plate - Google Patents
Preparation method of 3D printer surface guide plate Download PDFInfo
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- CN111481283A CN111481283A CN202010315803.1A CN202010315803A CN111481283A CN 111481283 A CN111481283 A CN 111481283A CN 202010315803 A CN202010315803 A CN 202010315803A CN 111481283 A CN111481283 A CN 111481283A
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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
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- 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
- A61B17/90—Guides therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3413—Needle locating or guiding means guided by ultrasound
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a method for manufacturing a medical tool, in particular to a method for manufacturing a 3D printing body surface guide plate, which comprises the steps of collecting data, reconstructing a 3D model with a positioning gasket under the help of three-dimensional design software in data processing equipment, leading the obtained 3D model into three-dimensional modeling software through an ST L format file, firstly establishing an original body surface base guide plate on the body surface around a model metal gasket, leading the original body surface guide plate into the three-dimensional design software again through an ST L format file, designing at least 2 positioning holes at the central hole positions of two metal gaskets by the original body surface base guide plate, determining the position of a guide hole sleeve on three-dimensional modeling to form a 3D body surface guide plate model, leading the 3D body surface guide plate model into a 3D printer, and printing to form the 3D printing body surface guide plate.
Description
Technical Field
The invention relates to a manufacturing method of a medical tool, in particular to a manufacturing method of a 3D printer surface guide plate for inserting or taking out a screw.
Background
Preoperative planning is very important for operations with high risk and great difficulty. Conventionally, data of a patient acquired by imaging equipment such as CT and Magnetic Resonance Imaging (MRI) is the basis for pre-planning of a doctor's operation, but the acquired medical image is two-dimensional, and in clinical medical operations, it is difficult for the doctor to accurately grasp the accuracy of the operation, which results in many failed operations. Particularly, under the condition that the bone blocks need to be accurately connected when screws need to be placed in the bone surgery, the two-dimensional data is difficult to perform the accurate surgery.
Disclosure of Invention
Aiming at the technical problems, the invention provides a method for manufacturing a 3D printer surface guide plate for inserting or taking out screws, which aims to greatly improve the precision of the operation for inserting or taking out the screws.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a preparation method of a 3D printer surface guide plate comprises the following steps,
a. attaching at least 2 annular metal gaskets to the body surface near the screw to be placed or taken out, using the metal gaskets to perform the function of positioning anchor points, using a marking pen to mark the positions of the annular gaskets on the body surface, and carrying out CT scanning on the limb with the gaskets to obtain limb CT data;
b. b, leading the limb CT data obtained in the step a into data processing equipment according to a DICOM mode, and reconstructing a 3D limb model with a positioning gasket under the help of E3D software in the data processing equipment; the DICOM mode refers to medical digital imaging and communication, and is an international standard for medical images and related information;
c. b, importing the 3D limb model obtained in the step b into three-dimensional modeling software, such as GeomagicWrap software, through an ST L format file, and firstly establishing an original body surface substrate guide plate on the body surface around the positioning pad of the 3D limb model;
d. and (3) the original body surface base guide plate is reintroduced into the E3D software through an ST L format file, a positioning hole is arranged at the position of a gasket central hole of the original body surface base guide plate, and the E3D software is also three-dimensional design software.
e. D, determining the position of a guide pin sleeve on the original body surface base guide plate in the step D to form a 3D body surface guide plate model, wherein the guide pin sleeve is determined by the position and the direction of the screw which is put in or taken out and a needle feeding point;
f. and e, guiding the 3D body surface guide plate model obtained in the step e into a 3D printer, and printing to form the 3D printer body surface guide plate for screw insertion or screw extraction, wherein the printing material is polylactic acid P L A, is a novel bio-based and renewable biodegradable material, and is most suitable as a construction material.
Further: in the preparation method of the 3D printer surface guide plate, the size of the positioning hole in the step D is the same as that of the central hole of the gasket, and the aperture is 4 +/-1 mm. The guide pin sleeve is consistent with the position and the direction of a screw to be placed in or taken out and the longitudinal axis of a needle feeding point. The inner diameter of the guide hole sleeve is 2.0 +/-1 mm, and the outer diameter of the guide hole sleeve is 3.5 +/-1 mm.
The E3D software and the Geomagic Wrap software mentioned in the present invention are all the software commonly used by those skilled in the art.
Compared with the prior art, the invention virtualizes the three-dimensional structure of the to-be-constructed body by using a computer aided design technology through the assistance of an image technology, such as data of CT, MRI and the like, and then establishes the entity layer by using corresponding materials, thereby having the advantages of high precision, high construction speed, capability of realizing the manufacturing according to requirements and the like, and the advantages of individuation, precision, remote and the like, and being particularly suitable for the application in the medical field. The 3D printer can directly print out the three-dimensional model, both can assist the doctor to carry out accurate operation planning, promote the success rate of operation, make things convenient for again that doctor and patient carry out audio-visual communication with regard to the operation scheme. In addition, even if treatment fails, 3D printing can provide traceability for both doctors and patients. The invention has the following beneficial technical effects: 1. the active positioning can be used in any place needing positioning, a plane can be positioned only by actively sticking two or more gaskets, and the position of a three-dimensional space can be positioned through the positioning plane without being limited by an inherent surface, such as a bone surface or a skin surface; the device is not limited by fixed bone (human body) marks, and also is free from the hard limitation of bone surface positioning, can be used in any place, and can also be used in other subjects, such as puncture biopsy and puncture hematoma drainage which need b-ultrasonic positioning or ct positioning. 2. The application on the body surface is equal to that the application in the body is greatly expanded, tissues are not required to be exposed, loss is reduced, bleeding is reduced, perspective and the like are reduced, the guide plate is not required to be contacted with the tissues in the body, iatrogenic infection is prevented, and the application range of the guide plate is expanded. 3. The positioning accuracy can be actively improved, and the positioning accuracy can be effectively improved by using more positioning points.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further explained below.
Example 1:
the patient 1 is female, is 49 years old, is limited in right foot swelling and pain activity caused by careless 'sprain' in the midsummer in late 6 months in 2019, is prompted by an X-ray sheet when the patient is subjected to conservative treatment such as 2 nd-4 metatarsal bone fracture of the right foot, is fixed by gypsum and is subjected to local symptomatic treatment, is free from relief in the perceived swelling and pain activity after 7 weeks of treatment, is diagnosed and examined again, is diagnosed and examined to diagnose 'right foot L isfranec fracture dislocation', is collected into a hospital for further treatment, is examined perfectly after hospital admission, is examined perfectly, is examined by MRI/CT/foot weight bearing positive lateral sheet and the like, is diagnosed clearly, is subjected to 'right foot L isfranec fracture dislocation incision reduction steel plate screw internal fixation operation and 3D printing L isfranec screw implantation operation under the body surface' about 8 weeks after injury, is subjected to one-time success in screw implantation and is matched with the optimal position calculated before the operation, is simulated to be well healed after the operation, is subjected to the local anesthesia 4 months after the operation, and is still subjected to regular recovery after the patient is subjected to the current postoperative recovery.
The body surface gasket positioning and 3D printer body surface guide plate auxiliary placement L isfranec screw operation method and steps are as follows:
body surface positioning and CT scanning reconstruction
And 2 annular metal gaskets are attached to the body surface near the first metatarsophalangeal joint on the inner side of the instep after hospital admission (the optimal needle insertion point of L isfranec screws on the inner side of the right instep is avoided, the metal gaskets are used for performing the function of positioning anchor points, marking the positions of the annular gaskets on the body surface by using a marker pen, and carrying out CT scanning and 3D reconstruction with the positioned gaskets on the body surface.
Design of 3D body surface guide plate
CT data is stored in the CD according to DICOM mode and is led into the computer for further processing. With the help of the e3D software, a 3D model of the right foot with a spacer is reconstructed.
2. And importing the right-foot 3D model into Geomagic Wrap software through an ST L format file, and establishing an original body surface substrate guide plate (the range includes the positioning pad holes) on the body surface around the positioning pad of the right-foot model.
3. And establishing an original body surface guide plate by the Geomagic Wrap software, and reintroducing the original body surface guide plate into the e3D software through an ST L format file, wherein 2 positioning holes are designed at the positions of two gasket holes of the original body surface substrate guide plate, and the sizes of the holes are 4mm as same as the sizes of the gasket holes.
4. The optimum position and direction of L isfranc screws and a needle feeding point are designed and observed from a three-dimensional angle, a guide pin sleeve on the guide plate can be designed according to the optimum position and direction of L isfranc screws and the longitudinal axis of the needle feeding point, the guide hole sleeve is completely consistent with the longitudinal direction of L isfranc screws, the inner diameter can be designed to be 2.0mm, the outer diameter can be designed to be 3.5mm, and a final guide plate is established after the guide pin sleeve guide plate and a body surface base guide plate are combined, so that the personalized body surface guide plate is prepared.
5. And guiding the designed body surface guide plate into a 3D printer for printing (P L A material) to obtain the 3D printer body surface guide plate, and performing plasma disinfection before operation for standby.
Third, surgical technique and procedure
1. The patient lies on the back, the waist is numb, the routine disinfection of right lower limb is spread the piece of cloth;
2. performing longitudinal incision on the back side between the first metatarsus and the second metatarsus, wherein the length of the longitudinal incision is about 8cm, the longitudinal incision enters layer by layer, tissues between the first metatarsus and the second metatarsus are exposed, scar tissues and hyperplastic tissues between the metatarsus are cleaned, the second metatarsus which is going out of position and is dislocated to the back is reset, and the second metatarsus is temporarily fixed by using a tissue clamp; c, the first metatarsal gap is recovered to be normal when the C-arm machine looks through, and the second metatarsal wedge joint is fixed by the miniature steel plate;
3. after the positioning holes on the 3D body surface guide plate which is well sterilized are completely overlapped with the marking holes on the instep body surface
4. Placing a guide pin hole with the diameter of 1.5mm into a guide pin hole of a 3D body surface guide plate, completely conforming the position of the guide pin with the position of a preoperative design L isfranec screw in a perspective mode, placing a guide pin drill hole with the diameter of 1.5mm into a hollow drill with the diameter of 2.5mm, removing the guide pin, measuring the length of a screw to be placed, conforming the length of the preoperative design placing screw, and placing a locking screw with the diameter of 2.7 mm;
5. and (6) cleaning the operation opening, suturing, placing L isfranec screw incision by about 0.5cm, and taking about 10 minutes for the process of placing L isfranec screw.
Fourth, after-operation treatment
Performing conventional treatment after operation, using a preventive antibacterial agent for 48 hours, rechecking an X sheet and a CT after the operation on the second day, starting muscle function exercise of lower limbs and non-weight-bearing walking of the affected limbs on the second day after the operation, removing stitches of an operation opening for 2 weeks after the operation, pulling out L isfranec screws after the operation for 4 months, walking the affected limbs under weight gradually, and scoring AOFAS for 86 without other discomfort after the current operation for the last half year.
Example 2
Patient 2: for male, 49 years old, the left double ankle fracture was treated in the hospital before one year, and the external ankle steel plate was reduced by cutting and fixed in the hollow screw of the internal ankle. The fracture of the hollow nail guide pin occurs in the operation, a broken guide pin is remained in a bone, the fractured guide pin is considered to be in a tibia marrow cavity, the difficulty in taking out in the operation is high, the bone is easily damaged, fracture healing is influenced, the broken guide pin is not taken out temporarily after the operation is communicated with a patient, the residual guide pin is taken out when the fracture healing internal fixation is removed, the postoperative patient recovers well, regular follow-up visit is carried out, special conditions are not called in the period, a postoperative one-year review sheet prompts that the fracture is healed, and the fracture is fixedly removed and the residual guide pin is taken out when the fracture healing internal fixation is carried out.
Body surface positioning and CT scanning reconstruction
Remain behind the hospital near the shin bone distal end anterolateral body surface subsides 2 annular metal gasket of guide pin, carry out the effect of location anchor point with metal gasket to with the marker pen in the position of the good annular gasket of body surface mark, take the good gasket row CT scan of body surface location and 3D to rebuild.
Design of 3D body surface guide plate
CT data is stored in the CD according to DICOM mode and is led into the computer for further processing. With the help of the e3D software, the left tibiofibula and left calf 3D models with spacer pads were reconstructed.
2. Importing the left calf 3D model into Geomagic Wrap software through an ST L format file, and firstly establishing an original body surface substrate guide plate (the range includes the positioning pad holes) on the body surface around the left calf model positioning pad.
3. And establishing an original body surface guide plate by the Geomagic Wrap software, and reintroducing the original body surface guide plate into the e3D software through an ST L format file, wherein 2 positioning holes are designed at the positions of two gasket holes of the original body surface substrate guide plate, and the sizes of the holes are 3mm as same as the sizes of the gasket holes.
4. Observing the position and the direction of the residual guide pin from a three-dimensional angle, designing a sleeve of the guide plate according to the longitudinal axis of the residual guide pin, designing the guide hole sleeve and the longitudinal direction of the residual guide pin completely, designing the inner diameter to be 2.2mm and the outer diameter to be 3.5mm, establishing a final guide plate after combining the sleeve guide plate and the body surface substrate guide plate, and thus preparing the personalized body surface guide plate.
5. And (3) guiding the designed guide plate into a 3D printer for printing (P L A material) to obtain a 3D printer surface guide plate, and performing plasma sterilization.
Third, surgical technique and procedure
1. The patient lies on the back, the waist is numb, the conventional disinfection of left lower limb is spread the piece of cloth; .
2. Inserting a positioning kirschner wire into the sterilized 3D printing body guide plate to reach the bone surface;
3. cutting the skin, opening subcutaneous tissues, pushing periosteum open, and sleeving a trephine from a Kirschner wire;
4. windowing cortical bone, taking out the broken needle at the same time, and plugging the windowed bone back to the original position;
5. the operation opening is cleaned and sutured, the incision is about 0.5cm (1h), the process takes less than 5 minutes, and fluoroscopy is not needed in the operation.
Fourth, after-operation treatment
And performing conventional treatment after the operation, not using a preventive antibacterial agent, rechecking the X-ray film after the operation on the second day, starting the muscle function exercise of the lower limbs and walking with the weight of the patient on the ground on the second day after the operation, and removing stitches of the operation opening for 2 weeks after the operation without complaints.
Claims (4)
1. A preparation method of a 3D printer surface guide plate is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
a. attaching at least 2 annular metal gaskets to the body surface near the screw to be placed or taken out, using the metal gaskets to perform the function of positioning anchor points, using a marking pen to mark the positions of the annular gaskets on the body surface, and carrying out CT scanning on the limb with the gaskets to obtain limb CT data;
b. b, leading the limb CT data obtained in the step a into data processing equipment according to a DICOM mode, and reconstructing a 3D limb model with a positioning gasket under the help of E3D software in the data processing equipment;
c. b, importing the 3D limb model obtained in the step b into three-dimensional modeling software through an ST L format file, and firstly establishing an original body surface substrate guide plate on the body surface around the 3D limb model positioning pad;
d. the original body surface base guide plate is reintroduced into E3D software through an ST L format file, and a positioning hole is arranged at the position of a gasket central hole of the original body surface base guide plate;
e. d, determining the position of a guide pin sleeve on the original body surface base guide plate in the step D to form a 3D body surface guide plate model, wherein the guide pin sleeve is determined by the position and the direction of the screw which is put in or taken out and a needle feeding point;
f. and e, guiding the 3D body surface guide plate model obtained in the step e into a 3D printer, and printing to form the 3D printer body surface guide plate for putting or taking out the screw.
2. The method for preparing a 3D printer surface guide plate according to claim 1, wherein the method comprises the following steps: and d, the size of the positioning hole in the step d is the same as that of the central hole of the gasket, and the aperture is 4 +/-1 mm.
3. The method for preparing a 3D printer surface guide plate according to claim 1, wherein the method comprises the following steps: the position and the direction of the guide pin sleeve and the screw placing or taking out are consistent with the longitudinal axis of the needle feeding point.
4. The method for preparing a 3D printer surface guide plate according to claim 3, wherein: the inner diameter of the guide hole sleeve is 2.0 +/-1 mm, and the outer diameter of the guide hole sleeve is 3.5 +/-1 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114271920A (en) * | 2022-01-05 | 2022-04-05 | 张家港市第一人民医院 | Preparation method of 3D printing combined guide plate suitable for femoral neck system |
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| CN106618755A (en) * | 2016-08-18 | 2017-05-10 | 首都医科大学附属北京地坛医院 | Percutaneous navigation guide board combined with body position fixation device and preparation method thereof |
| CN108742822A (en) * | 2018-04-04 | 2018-11-06 | 广东医科大学附属医院 | A kind of preparation method of navigation module for the blocking nail implantation of fracture of tibia Medullary fixation |
| CN110025372A (en) * | 2019-04-08 | 2019-07-19 | 淮安市第二人民医院（淮安仁慈医院） | A kind of 3D printing point contact pedicle of vertebral arch guide plate production method |
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2020
- 2020-04-21 CN CN202010315803.1A patent/CN111481283B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618755A (en) * | 2016-08-18 | 2017-05-10 | 首都医科大学附属北京地坛医院 | Percutaneous navigation guide board combined with body position fixation device and preparation method thereof |
| CN108742822A (en) * | 2018-04-04 | 2018-11-06 | 广东医科大学附属医院 | A kind of preparation method of navigation module for the blocking nail implantation of fracture of tibia Medullary fixation |
| CN110025372A (en) * | 2019-04-08 | 2019-07-19 | 淮安市第二人民医院（淮安仁慈医院） | A kind of 3D printing point contact pedicle of vertebral arch guide plate production method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114271920A (en) * | 2022-01-05 | 2022-04-05 | 张家港市第一人民医院 | Preparation method of 3D printing combined guide plate suitable for femoral neck system |
| CN114271920B (en) * | 2022-01-05 | 2023-09-19 | 张家港市第一人民医院 | Preparation method of 3D printing combined guide plate suitable for femoral neck system |
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| CN111481283B (en) | 2022-10-18 |
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