CN111420306A - 3D printing head die for gamma knife operation and manufacturing method and fixing method thereof - Google Patents

3D printing head die for gamma knife operation and manufacturing method and fixing method thereof Download PDF

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Publication number
CN111420306A
CN111420306A CN202010262615.7A CN202010262615A CN111420306A CN 111420306 A CN111420306 A CN 111420306A CN 202010262615 A CN202010262615 A CN 202010262615A CN 111420306 A CN111420306 A CN 111420306A
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CN
China
Prior art keywords
printing head
head die
die body
patient
printing
Prior art date
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Pending
Application number
CN202010262615.7A
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Chinese (zh)
Inventor
马晓楠
姚翠萍
季兴哲
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Xian Jiaotong University
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Xian Jiaotong University
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Publication date
Application filed by Xian Jiaotong University filed Critical Xian Jiaotong University
Priority to CN202010262615.7A priority Critical patent/CN111420306A/en
Publication of CN111420306A publication Critical patent/CN111420306A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/121—Head or neck
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/126—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with specific supporting surface
    • 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
    • B33Y80/00—Products made by additive manufacturing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details
    • A61N2005/1097—Means for immobilizing the patient

Abstract

The invention provides a 3D printing head die for gamma knife surgery, and a manufacturing method and a fixing method thereof. The 3D printing head die comprises a printing head die body and an adjusting gasket; the printing head die body is manufactured by adopting a 3D printing process, the inner surface of the printing head die body can be attached to the head of a patient, the part of the printing head die body, which is opposite to the skull occiput of the patient, is the bottom, when the printing head die body is used, the bottom of the printing head die body is arranged on the adjusting gasket, and the printing head die body and the adjusting gasket are fixed on the operation exercise bed together. The manufacturing method of the 3D printing head die comprises the steps of firstly, obtaining three-dimensional data of the head of a patient, making reverse die data according to the three-dimensional data of the head of the patient, and printing a printing head die body with the inner surface capable of being attached to the head of the patient through a 3D printing process according to the reverse die data. The 3D printing head die is designed according to individual differences of human bodies and can be tightly combined with the corresponding head of a patient, so that the head of the patient can be stably fixed, and the gamma knife can be accurately positioned.

Description

3D printing head die for gamma knife operation and manufacturing method and fixing method thereof
Technical Field
The invention relates to a 3D printing head die for gamma knife surgery, a manufacturing method and a fixing method thereof.
Background
The problem of positioning accuracy during gamma knife treatment is always an important problem in medical physics, in order to realize accurate positioning, a patient needs to be fixed firstly, and at present, the fixing method for the head of the patient in gamma knife positioning is mainly divided into two methods, namely rigid fixing and flexible fixing.
The first rigid fixation is to implant 4 head nails for rigid fixation into the head, the head nails are rigidly connected with a metal helmet, and the helmet is rigidly connected with a treatment bed. Its advantage is: the accuracy is high, the repeated positioning is good, and the relative error can be eliminated from the source, so that the error is almost zero. The disadvantages are as follows: can cause physical trauma and psychological stress of patients and even fear, brings great discomfort to the patients in the treatment process (10-30 minutes), and the gap head nail can not be removed after a plurality of treatments. Although there are many disadvantages and uncomfortable experiences, the rigid connection fixed frame cannot be eliminated because some treatments with higher precision cannot have any error, for example, the treatment of the optic nerve crossing part requires that the patient cannot be displaced after being operated, and the patient can cause irreversible serious injury due to head micromotion caused by personal comfort.
The second kind of flexibility is fixed, coats foaming glue headrest AB liquid mixture in foaming headrest, places the foaming headrest on treatment bed link frame, and the patient is rested the head on the foaming headrest, treats that the headrest is stereotyped the back, again with the thermal plastic film heating, laminates in the head to draw the connecting hole to the reference column position on the treatment bed link, treat that the thermal plastic facial mask is stereotyped the back, this flexible fixing utensil takes shape. Its advantage is: is more comfortable relative to a rigid frame, the positioning precision can be controlled to be about 1mm, and the requirements of general treatment can be met. The disadvantages are as follows: the flexible fixer has certain flexibility, and errors of patients caused by movement or torsion of the bodies of the patients (particularly old patients) after entering a treatment bin are not eliminated by means at present.
By understanding the radiation therapy departments of a plurality of hospitals by visiting, a new fixing means is urgently needed to make up the requirements which cannot be met by the current fixing method:
1) the positioning device is stably fixed to ensure accurate positioning; 2) no harm to the body of the patient; 3) and the data is digitalized, so that later correction is facilitated.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a 3D printing head die for gamma knife operation, a manufacturing method and a fixing method thereof, and simultaneously meets the requirements of no wound, stable fixation, high positioning precision and digitization realization.
The invention is realized by the following technical scheme:
A3D printing head die for gamma knife operation comprises a printing head die body and an adjusting shim;
the printing head die body is manufactured by adopting a 3D printing process, the inner surface of the printing head die body can be attached to the head of a patient, the part of the printing head die body, which is opposite to the skull occiput of the patient, is the bottom, when the printing head die body is used, the bottom of the printing head die body is arranged on the adjusting gasket, and the printing head die body and the adjusting gasket are fixed on the operation exercise bed together.
Preferably, the device further comprises a fixing screw; the bottom of the printing head die body is provided with a threaded hole; the corresponding position on the adjusting shim is provided with a threaded hole which is arranged in a through hole, and when the adjustable printing head is used, the printing head die body and the adjusting shim are fixed on the operation exercise bed together through the fixing screws.
Furthermore, the bottom of the printing head die body is provided with a boss, the bottom surface of the boss is a plane, and a threaded hole of the printing head die body is formed in the bottom surface of the boss.
The manufacturing method of the 3D printing head die for the gamma knife operation comprises the following steps:
step 1, acquiring three-dimensional data of the head of a patient;
step 2, making reverse model data according to the three-dimensional data of the head of the patient;
and 3, printing the printing head die body with the inner surface capable of being attached to the head of the patient through a 3D printing process according to the die-reversing data.
Preferably, in step 1, three-dimensional data of the patient's head is acquired by CT or MRI.
The method for fixing the 3D printing head die for the gamma knife operation comprises the following steps:
1) placing the bottom of the printing head die body on the adjusting shim, and fixing the printing head die body and the adjusting shim on the operation exercise bed together;
2) the head of the patient is fixed in the printing head mould body, and the operation exercise bed is placed on the gamma knife operating table.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the 3D printing head die, the printing head die bodies are designed according to individual differences of human bodies, and each printing head die body can be tightly combined with the corresponding head of a patient, so that the head of the patient can be stably fixed, the head of the patient is stably fixed, the gamma knife can be accurately positioned, and the aim of accurate positioning is fulfilled. Secondly, because this beat printer head mould body and print the manufacturing through 3D, carry out the datamation promptly, can carry out the data modification to corresponding position (like ear, subcutaneous adipose tissue etc.) according to patient's travelling comfort demand, reach convenient comfortable purpose, can thicken the purpose in order to reach fixed strength to data simultaneously. Therefore, the 3D printing head die meets the requirements of no wound, high positioning precision and digitization realization.
The 3D printing head die manufacturing method can print and manufacture the printing head die body which can be tightly combined with the head of a corresponding patient according to individual difference, ensures stable fixation and meets the requirement of accurate positioning, and meanwhile, the printing head die body is manufactured in a data mode, so that data modification can be carried out on the corresponding part (such as ears, subcutaneous adipose tissues and the like) according to the comfort requirement of the patient, and the purpose of convenience and comfort is achieved.
The 3D printing head die is fixed, so that the aim of stably fixing to ensure the positioning precision can be fulfilled, and a patient is prevented from being injured.
Drawings
FIG. 1 is a schematic view of the fixing method of the present invention.
Fig. 2 is a schematic structural diagram of a 3D printhead according to the present invention.
In the figure: the gamma knife operating table comprises a gamma knife operating table 1, an operating exercise bed 2, a patient 3, a printing head die body 4-1, an adjusting gasket 4-2 and a fixing screw 4-3.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
As shown in FIG. 2, the 3D printing head die for gamma knife operation comprises a printing head die body 4-1 and an adjusting shim 4-2.
When the printing head model is used, the bottom of the printing head model body 4-1 is arranged on the adjusting gasket 4-2, and the printing head model body 4-1 and the adjusting gasket 4-2 are fixed on the operation moving bed 2 together. The spacer 4-2 is provided with a series of shims of different thicknesses so that the spacers of different thicknesses are selected as required to bring the patient's head to the appropriate height.
In one embodiment, a set screw 4-3 is also included. The bottom of the printing head die body 4-1 is provided with a threaded hole; the corresponding position on the adjusting shim 4-2 is provided with a threaded hole which is arranged in a through hole, and when in use, the printing head die body 4-1 and the adjusting shim 4-2 are fixed on the operation moving bed 2 together through the fixing screw 4-3.
In one embodiment, the occiput portion of the print head die body 4-1 is provided with a boss, the bottom surface of the boss is a plane, and the threaded hole of the print head die body 4-1 is arranged on the bottom surface of the boss.
The manufacturing method of the 3D printing head die for the gamma knife operation comprises the following steps:
1) acquiring three-dimensional data of the head of a patient through CT or MRI;
2) making reverse mould data according to the three-dimensional data of the head of the patient, and designing a thread hole position;
3) and printing the printing head die body 4-1 with the inner surface attached to the head of the patient through a 3D printing process according to the die-reversing data.
As shown in fig. 1 and 2, the method for positioning by using the 3D printhead die according to the present invention includes the following steps:
1) the printing head die body 4-1 and the adjusting shim 4-2 are connected and fixed with the operation moving bed 2 through a fixing screw 4-3;
2) the patient 3 lies on the operation exercise bed 2, the head of the patient is fixed in the printing head mould body 4-1, and the operation exercise bed 2 is placed on the gamma knife operating table 1.

Claims (6)

1. A3D printing head die for gamma knife operation is characterized by comprising a printing head die body (4-1) and an adjusting shim (4-2);
the printing head die body (4-1) is manufactured by a 3D printing process, the inner surface of the printing head die body (4-1) can be attached to the head of a patient, the part of the printing head die body (4-1) opposite to the occiput of the skull of the patient is the bottom, when the printing head die is used, the bottom of the printing head die body (4-1) is placed on the adjusting gasket (4-2), and the printing head die body (4-1) and the adjusting gasket (4-2) are fixed on the operation moving bed (2) together.
2. The 3D print head die for gamma knife surgery according to claim 1, characterized by further comprising fixing screws (4-3); the bottom of the printing head die body (4-1) is provided with a threaded hole; the corresponding position on the adjusting shim (4-2) is provided with a threaded hole which is arranged in a through hole, and when the adjustable printing head is used, the printing head die body (4-1) and the adjusting shim (4-2) are fixed on the operation moving bed (2) together through the fixing screw (4-3).
3. The 3D printing head die for gamma knife operation as claimed in claim 2, wherein the bottom of the printing head die body (4-1) is provided with a boss, the bottom surface of the boss is a plane, and the threaded hole of the printing head die body (4-1) is arranged on the bottom surface of the boss.
4. The method of manufacturing a 3D print head die for gamma knife surgery of any one of claims 1 to 3, comprising the steps of:
step 1, acquiring three-dimensional data of the head of a patient;
step 2, making reverse model data according to the three-dimensional data of the head of the patient;
and 3, printing a printing head die body (4-1) with the inner surface capable of being attached to the head of the patient through a 3D printing process according to the reverse die data.
5. The method for manufacturing a 3D printing head die for gamma knife surgery as claimed in claim 4, wherein in step 1, three-dimensional data of the head of the patient is acquired by CT or MRI.
6. The method of fixing with the 3D print head die for gamma knife surgery of any one of claims 1 to 3, characterized by comprising the steps of:
1) the bottom of the printing head die body (4-1) is placed on the adjusting gasket (4-2), and the printing head die body (4-1) and the adjusting gasket (4-2) are fixed on the operation moving bed (2) together;
2) the head of a patient is fixed in a printing head mould body (4-1), and the operation moving bed (2) is placed on a gamma knife operating table (1).
CN202010262615.7A 2020-04-03 2020-04-03 3D printing head die for gamma knife operation and manufacturing method and fixing method thereof Pending CN111420306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010262615.7A CN111420306A (en) 2020-04-03 2020-04-03 3D printing head die for gamma knife operation and manufacturing method and fixing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010262615.7A CN111420306A (en) 2020-04-03 2020-04-03 3D printing head die for gamma knife operation and manufacturing method and fixing method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112138287A (en) * 2020-07-24 2020-12-29 西安交通大学 Positioning head die for gamma knife operation and three-dimensional imaging and forming system
CN112972177A (en) * 2021-02-02 2021-06-18 赤峰市医院 Body position frame for hip joint replacement and manufacturing method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204684074U (en) * 2015-03-30 2015-10-07 烟台毓璜顶医院 The special patient support pillow of a kind of operation table and kidney surgery are lain on one's side operating-table
KR20180052447A (en) * 2016-11-10 2018-05-18 선문대학교 산학협력단 Personalized scapula fixed pillow using 3d printer and its manufacturing method
CN209237170U (en) * 2018-06-21 2019-08-13 朱鹭超 It rests the head in a kind of head and neck neoplasm radiotherapy fixed device
CN210056322U (en) * 2019-03-27 2020-02-14 王彤 Rabbit fixing device for experiments based on 3D printing technology
CN110840478A (en) * 2019-11-29 2020-02-28 彭旗宇 Head fixing device for PET examination

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204684074U (en) * 2015-03-30 2015-10-07 烟台毓璜顶医院 The special patient support pillow of a kind of operation table and kidney surgery are lain on one's side operating-table
KR20180052447A (en) * 2016-11-10 2018-05-18 선문대학교 산학협력단 Personalized scapula fixed pillow using 3d printer and its manufacturing method
CN209237170U (en) * 2018-06-21 2019-08-13 朱鹭超 It rests the head in a kind of head and neck neoplasm radiotherapy fixed device
CN210056322U (en) * 2019-03-27 2020-02-14 王彤 Rabbit fixing device for experiments based on 3D printing technology
CN110840478A (en) * 2019-11-29 2020-02-28 彭旗宇 Head fixing device for PET examination

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112138287A (en) * 2020-07-24 2020-12-29 西安交通大学 Positioning head die for gamma knife operation and three-dimensional imaging and forming system
CN112972177A (en) * 2021-02-02 2021-06-18 赤峰市医院 Body position frame for hip joint replacement and manufacturing method thereof
CN112972177B (en) * 2021-02-02 2023-09-01 赤峰市医院 Body position frame for hip joint replacement and manufacturing method thereof

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Application publication date: 20200717

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