CN110537962B - Rapid 3D printing puncture operation guide plate method - Google Patents
Rapid 3D printing puncture operation guide plate method Download PDFInfo
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- CN110537962B CN110537962B CN201910728005.9A CN201910728005A CN110537962B CN 110537962 B CN110537962 B CN 110537962B CN 201910728005 A CN201910728005 A CN 201910728005A CN 110537962 B CN110537962 B CN 110537962B
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- printing
- guide plate
- needle
- puncture
- body surface
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
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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
- B33Y80/00—Products made by additive manufacturing
-
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/101—Computer-aided simulation of surgical operations
- A61B2034/105—Modelling of the patient, e.g. for ligaments or bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/107—Visualisation of planned trajectories or target regions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/108—Computer aided selection or customisation of medical implants or cutting guides
Abstract
The invention discloses a rapid 3D printing puncture surgery guide plate method which comprises the steps of obtaining the specific position of a lesion in a body and a three-dimensional image of the body surface of a patient by using a medical image; planning the needle inserting position, the needle inserting direction, the needle inserting length and the operation coverage range of the puncture needle on the body surface; calculating the shortest geodesic line between the positions of the needle insertion guide cylinders to form a guide plate main body; installing a guide cylinder part and a fixing plate to form a three-dimensional printing model; planning a 3D printing path; according to the invention, the operation guide plate structure is optimized through an algorithm, a puncture operation guide plate framework can be formed only by printing the guide holes and the connecting lines (grounding wires) between the guide holes, the printing area is greatly reduced, and the printing path is optimized according to the grounding wires, so that the printing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of 3D printing path planning, in particular to a rapid 3D printing puncture operation guide plate method.
Background
In the puncture operation, in order to shorten the operation time, improve the operation precision and reduce the wound surface and the operation risk of a patient, a doctor plans a puncture path before the operation, a 3D printing technology is utilized to manufacture a needle insertion guide plate to limit the puncture position and the puncture direction, the model is attached to the body surface of the patient during the operation, and the puncture operation is carried out on the patient according to the guide hole;
the existing operation guide plate needs to print an area of a three-dimensional body surface as shown in figure 1, the printing time is long, and partial manufacturers manually reduce the printing area by adopting a method of hollowing out partial layout in the design process of the guide plate, but the printing effect is influenced and the requirement of a puncture operation cannot be better met.
Disclosure of Invention
Aiming at the problems, the invention provides a method for quickly printing a puncture surgical guide plate by 3D, the invention optimizes the structure of the surgical guide plate by an algorithm, a puncture surgical guide plate framework can be formed only by printing guide holes and connecting lines (grounding wires) among the guide holes, the printing area is greatly reduced, and the printing path is optimized according to the grounding wires, so that the printing efficiency is improved.
The invention provides a rapid 3D printing puncture surgery guide plate method, which comprises the following steps:
the method comprises the following steps: acquiring a specific position of a lesion in a body and a three-dimensional image of the body surface of a patient;
step two: planning the needle inserting position, the needle inserting direction and the needle inserting length of the puncture needle on the body surface;
step three: forming a three-dimensional image of the body surface of the patient into a body surface net, and limiting a covering area of the operation guide plate;
step four: calculating the shortest geodesic line between needle insertion positions by using a 'discrete surface geodesic line algorithm';
step five: extracting the triangular grid unit touched by the shortest geodesic line and the triangular grid unit touched by the boundary of the puncture needle, and widening and thickening the triangular grid units to form a part;
step six: guiding the needle inserting position planned in the step two into a guide cylinder component according to the needle inserting direction;
step seven: introducing a fixing plate at a proper position of the boundary of the puncture needle;
step eight: forming a complete puncture surgical guide plate;
step nine: and setting the printing path to be in the geodesic direction, and performing 3D printing.
The further improvement lies in that: the first step is specifically as follows: the CT/MRI equipment is used for scanning and shooting a patient to obtain a CT/MRI medical image, and then the specific position of a lesion in the body of the patient and a three-dimensional image of the body surface of the patient are found out according to the CT/MRI medical image.
The further improvement lies in that: in the first step, CT/MRI equipment is used for scanning and shooting a patient to obtain a plurality of groups of CT/MRI medical images, and the obtained plurality of groups of CT/MRI medical images are screened to screen a group of CT/MRI medical images with complete and standard information for obtaining a specific position of a lesion in a body and a three-dimensional image of the body surface of the patient.
The further improvement lies in that: the specific process in the step two is as follows: the target area is sketched out by utilizing puncture design software, and the needle inserting position, the needle inserting direction and the needle inserting length of a puncture needle in the target area on the body surface are determined by a two-point positioning method.
The further improvement lies in that: and in the second step, when the needle inserting position, the needle inserting direction and the needle inserting length of the puncture needle on the body surface are planned, organs, blood vessels, nerves and bones in the target area need to be avoided.
The further improvement is that: and when the target area is sketched out by utilizing puncture design software in the second step, the medical diagnosis basis and the specific position of the lesion in the body and the three-dimensional image of the body surface of the patient obtained in the first step are required to be based.
The further improvement lies in that: and in the fifth step, when widening and thickening treatment is carried out, the widening and thickening amount is 3-5 mm.
The further improvement is that: and the printing path in the step nine is planned along the connecting line (geodesic line) between the guide cylinders.
The invention has the beneficial effects that: according to the invention, the printing path is optimized through an algorithm, and a puncture operation guide plate framework can be formed only by printing the guide holes and the connecting lines (geodesic lines) between the guide holes, so that the printing area is greatly reduced; and set for printer printing route along geodesic line direction, and then solved preceding puncture operation baffle and printed the time long, the problem that the consumptive material is many, realized the improvement of operation baffle printing efficiency.
Drawings
Fig. 1 is a schematic view of a surgical guide plate assisted puncture operation generated by using a 3D printing technology in the background art of the present invention.
FIG. 2 is a schematic view of a guide pattern structure according to the present invention.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Example one
According to fig. 2, the embodiment proposes a fast 3D printing method of a puncture surgical guide plate, which includes the following steps:
the method comprises the following steps: a CT/MRI device is used for scanning and shooting a patient, a plurality of groups of CT/MRI medical images are required to be shot, screening is carried out on the obtained plurality of groups of CT/MRI medical images, and a group of CT/MRI medical images with complete and standard information are screened out and used for obtaining a specific position of a lesion in a body and a three-dimensional image of the body surface of the patient;
step two: based on the medical diagnosis basis and the specific position of the lesion in the body and the three-dimensional image of the body surface of the patient acquired in the first step, a target area is sketched by utilizing puncture design software, the needle inserting position, the needle inserting direction and the needle inserting length of a puncture needle in the target area on the body surface are determined by a two-point positioning method, and visceral organs, blood vessels, nerves and bones in the target area need to be avoided;
step three: forming a three-dimensional image of the body surface of the patient into a body surface net, and limiting a covering area of the operation guide plate;
step four: calculating the shortest geodesic line between needle insertion positions by using a 'discrete surface geodesic line algorithm';
step five: extracting the triangular grid unit touched by the shortest geodesic line and the triangular grid unit touched by the boundary of the puncture needle, and widening and thickening the triangular grid units to form a part, wherein the widening and thickening amount is 3 mm;
step six: guiding the needle inserting position planned in the step two into a guide cylinder component according to the needle inserting direction;
step seven: introducing a fixing plate at a proper position of the boundary of the puncture needle;
step eight: forming a complete puncture surgical guide plate;
step nine: and setting the printing path as the direction of the geodesic line, and performing 3D printing, wherein the printing path is planned along the connecting line (the geodesic line) between the guide cylinders.
Example two
According to fig. 2, the embodiment proposes a fast 3D printing method of a puncture surgical guide plate, which includes the following steps:
the method comprises the following steps: by utilizing CT/MRI equipment to scan and shoot a patient, a plurality of groups of CT/MRI medical images need to be shot, screening is carried out in the obtained plurality of groups of CT/MRI medical images, and a group of CT/MRI medical images with complete and standard information is screened out and used for obtaining a three-dimensional image of a specific position of a lesion in a body and the surface of the patient
Step two: based on the medical diagnosis basis and the specific position of the lesion in the body and the three-dimensional image of the body surface of the patient acquired in the first step, a target area is sketched by utilizing puncture design software, the needle inserting position, the needle inserting direction and the needle inserting length of a puncture needle in the target area on the body surface are determined by a two-point positioning method, and visceral organs, blood vessels, nerves and bones in the target area need to be avoided;
step three: forming a three-dimensional image of the body surface of the patient into a body surface net, and limiting a covering area of the operation guide plate;
step four: calculating the shortest geodesic line between needle insertion positions by using a 'discrete surface geodesic line algorithm';
step five: extracting the triangular grid unit touched by the shortest geodesic line and the triangular grid unit touched by the boundary of the puncture needle, and widening and thickening the triangular grid units to form a part, wherein the widening and thickening amount is 4 mm;
step six: guiding the needle inserting position planned in the step two into a guide cylinder component according to the needle inserting direction;
step seven: introducing a fixing plate at a proper position of the boundary of the puncture needle;
step eight: forming a complete puncture surgical guide plate;
step nine: and setting the printing path as the direction of the geodesic line, and performing 3D printing, wherein the printing path is planned along the connecting line (the geodesic line) between the guide cylinders.
EXAMPLE III
According to the embodiment shown in fig. 2, the method for fast 3D printing of the puncture surgical guide plate is characterized by comprising the following steps:
the method comprises the following steps: by utilizing CT/MRI equipment to scan and shoot a patient, a plurality of groups of CT/MRI medical images need to be shot, screening is carried out in the obtained plurality of groups of CT/MRI medical images, and a group of CT/MRI medical images with complete and standard information is screened out and used for obtaining a three-dimensional image of a specific position of a lesion in a body and the surface of the patient
Step two: based on the medical diagnosis basis and the specific position of the lesion in the body and the three-dimensional image of the body surface of the patient acquired in the first step, a target area is sketched by utilizing puncture design software, the needle inserting position, the needle inserting direction and the needle inserting length of a puncture needle in the target area on the body surface are determined by a two-point positioning method, and visceral organs, blood vessels, nerves and bones in the target area need to be avoided;
step three: forming a three-dimensional image of the body surface of the patient into a body surface net, and limiting a covering area of the operation guide plate;
step four: calculating the shortest geodesic line between needle insertion positions by using a 'discrete surface geodesic line algorithm';
step five: extracting the triangular grid unit touched by the shortest geodesic line and the triangular grid unit touched by the boundary of the puncture needle, and widening and thickening the triangular grid units to form a part, wherein the widening and thickening amount is 5 mm;
step six: guiding the needle inserting position planned in the step two into a guide cylinder component according to the needle inserting direction;
step seven: introducing a fixing plate at a proper position of the boundary of the puncture needle;
step eight: forming a complete puncture surgical guide plate;
step nine: and setting the printing path as the direction of the geodesic line, and performing 3D printing, wherein the printing path is planned along the connecting line (the geodesic line) between the guide cylinders.
According to the first embodiment, the second embodiment and the third embodiment, the thickening amount is 3-5mm, the 3D printing of the puncture surgical guide plate takes the least time, and the printing of the puncture surgical guide plate has the least structural area.
According to the invention, the printing path is optimized through an algorithm, and a puncture operation guide plate framework can be formed only by printing the guide holes and the connecting lines (geodesic lines) between the guide holes, so that the printing area is greatly reduced; and set for printer printing route along geodesic line direction, and then solved preceding puncture operation baffle and printed the time long, the problem that the consumptive material is many, realized the improvement of operation baffle printing efficiency.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A rapid 3D printing puncture surgery guide plate method is characterized by comprising the following steps:
the method comprises the following steps: acquiring a specific position of a lesion in a body and a three-dimensional image of the body surface of a patient; step two: planning the needle inserting position, the needle inserting direction and the needle inserting length of the puncture needle on the body surface; step three: forming a three-dimensional image of the body surface of the patient into a body surface net, and limiting a covering area of the operation guide plate; step four: calculating the shortest geodesic line between needle insertion positions by using a 'discrete surface geodesic line algorithm'; step five: extracting the triangular grid unit touched by the shortest geodesic line and the triangular grid unit touched by the boundary of the puncture needle, and widening and thickening the triangular grid units to form a part; step six: guiding the needle inserting position planned in the step two into a guide cylinder component according to the needle inserting direction; step seven: introducing a fixing plate at a proper position of the boundary of the puncture needle; step eight: forming a complete puncture surgical guide plate; step nine: and setting a printing path as a geodesic direction, planning the printing path along a connecting line between the guide cylinders, and performing 3D printing.
2. The method for rapid 3D printing of a surgical guide plate according to claim 1, wherein: the first step is specifically as follows: the CT/MRI equipment is used for scanning and shooting a patient to obtain a CT/MRI medical image, and then the specific position of a lesion in the body of the patient and a three-dimensional image of the body surface of the patient are found out according to the CT/MRI medical image.
3. The method for rapid 3D printing of a surgical guide plate according to claim 2, wherein: in the first step, CT/MRI equipment is used for scanning and shooting a patient to obtain a plurality of groups of CT/MRI medical images, and the obtained plurality of groups of CT/MRI medical images are screened to screen a group of CT/MRI medical images with complete and standard information for obtaining a specific position of a lesion in a body and a three-dimensional image of the body surface of the patient.
4. The method for rapid 3D printing of a surgical guide plate according to claim 1, wherein: the specific process in the step two is as follows: the target area is sketched out by utilizing puncture design software, and the needle inserting position, the needle inserting direction and the needle inserting length of a puncture needle in the target area on the body surface are determined by a two-point positioning method.
5. The method for rapid 3D printing of a surgical guide plate according to claim 4, wherein: and in the second step, when the needle inserting position, the needle inserting direction and the needle inserting length of the puncture needle on the body surface are planned, organs, blood vessels, nerves and bones in the target area need to be avoided.
6. The method for rapid 3D printing of a surgical guide plate according to claim 4, wherein: and when the target area is sketched out by utilizing puncture design software in the second step, the medical diagnosis basis and the specific position of the lesion in the body and the three-dimensional image of the body surface of the patient obtained in the first step are required to be based.
7. The method for rapid 3D printing of a surgical guide plate according to claim 1, wherein: and in the fifth step, when widening thickening treatment is carried out, the widening thickening amount is 3-5 mm.
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| CN112675387A (en) * | 2020-12-23 | 2021-04-20 | 怀化市第一人民医院 | Design method for manufacturing piriformis drug injection puncture guide plate by using 3D printing technology |
| CN113768622A (en) * | 2021-09-25 | 2021-12-10 | 湖南师范大学树达学院 | PBC puncture path planning method |
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| US20150324114A1 (en) * | 2014-05-06 | 2015-11-12 | Conceptualiz Inc. | System and method for interactive 3d surgical planning and modelling of surgical implants |
| CN105796160A (en) * | 2016-03-01 | 2016-07-27 | 贵州师范大学 | Manufacturing method of individual hip joint percutaneous puncture guide plate |
| CN107320162B (en) * | 2017-09-04 | 2021-03-12 | 山东卓业电子科技有限公司 | Design method of 3D printing template for tumor puncture surgery |
| CN109648841A (en) * | 2018-12-10 | 2019-04-19 | 西安交通大学 | A kind of multi-direction multiple degrees of freedom 3D printing dicing method |
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