3D printing puncture auxiliary navigation plate

Abstract

The utility model discloses a 3D printing puncture auxiliary navigation plate which comprises a guide plate body with an inner concave arc face, a navigation column and an installation foundation column. The guide plate main body can be adaptively attached to a puncture part; the mounting base column is arranged on the guide plate main body; the navigation column is detachably mounted on the guide plate main body through the mounting base column; a navigation groove corresponding to the puncture needle is formed in the navigation column. The puncture needle is simple in structure and high in practicability, the puncture accuracy can be effectively improved, the angle of the puncture needle can be fixed through the navigation groove, the puncture needle is prevented from deviating, puncture is more accurate, and safety is high; the navigation plate and the navigation column which are detachably spliced can meet the requirements of adjusting the position of the puncture needle, changing the operation on the puncture part and the like in the treatment process, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture navigation, in particular to a 3D printed puncture-assisted navigation board. Background Art

[0002] A puncture needle is a medical device that can be used for puncture sampling and injection treatment of parts such as the spine, head and face, joint limbs or deep tissues during minimally invasive surgery. However, during the puncture process of the puncture needle, limited by the doctor's personal experience, the puncture accuracy will be affected. Sometimes, it is necessary to continuously try to adjust the angle to approach the puncture target, which is very likely to cause unnecessary tissue damage, cause pain to the patient, and in severe cases, lead to puncture failure. Therefore, it is necessary to adopt a puncture-assisted navigation device to improve the puncture accuracy and its success rate.

[0003] Moreover, during the puncture process, due to the patient's respiratory movement (thoracic activity caused by breathing), joint mobility or body position change, etc., errors will occur in the puncture. Therefore, after the puncture, it is necessary to manually fine-tune the position of the puncture needle or the puncture site. However, the existing puncture navigation assistance devices do not consider the need for fine-tuning after puncture. For example, the utility model patent "A 3D Printed Puncture Needle-Assisted Multilayer Navigation Template" with the application number CN201820574146.0, and another example is the utility model patent "A 3D Printed Puncture Needle-Assisted Navigation Template" with the application number CN201820574142.2. Therefore, it is necessary to improve the existing technology to provide a puncture-assisted navigation device that can not only improve the puncture accuracy and its success rate of the puncture needle, but also meet the needs of fine-tuning the position of the puncture needle and the puncture site. Summary of the Utility Model

[0004] Therefore, based on the above background, the utility model improves the existing technology and provides a 3D printed puncture-assisted navigation board, which can not only improve the puncture accuracy and its success rate of the puncture needle, but also the detachable and spliced navigation board and its navigation column can meet the needs of fine-tuning the position of the puncture needle and the puncture site during the treatment process.

[0005] The technical solution provided by the utility model is as follows:

[0006] A 3D printed puncture-assisted navigation board, which includes a guide board main body with a concave arc surface, a navigation column, and a mounting base column;

[0007] The guide board main body can be adaptively attached to the puncture site;

[0008] The navigation column is detachably mounted on the guide board main body through the mounting base column;

[0009] A navigation groove corresponding to the puncture needle is provided in the navigation column.

[0010] Furthermore, the navigation column is detachably mounted on the mounting base column by means of snap connection or screw thread connection.

[0011] Furthermore, the guide plate body includes a first guide plate and a second guide plate, and the first guide plate and the second guide plate are detachably spliced into the guide plate body;

[0012] The mounting base column includes a first base column and a second base column, and the first base column and the second base column are detachably spliced into the mounting base column;

[0013] The first base column and the second base column are respectively fixedly connected to the first guide plate and the second guide plate.

[0014] Furthermore, the navigation column includes a first navigation column body and a second navigation column body, and the first navigation column body and the second navigation column body are detachably spliced into the navigation column.

[0015] Furthermore, a first positioning through hole is provided on the first guide plate, and a second positioning through hole is provided on the second guide plate.

[0016] Furthermore, strip-shaped first positioning grooves penetrating up and down are provided on the first guide plate and the second guide plate, and a strip-shaped second positioning groove penetrating up and down is provided on the first guide plate.

[0017] Furthermore, third positioning grooves are connected to both sides of the first positioning groove, and the third positioning grooves respectively penetrate through the first guide plate and the second guide plate from front to back;

[0018] The tail end of the third positioning groove has a third positioning hole.

[0019] Furthermore, clamping blocks are oppositely provided on the first navigation column body and the second navigation column body, and the first base column 1 and the second base column are respectively provided with clamping holes adapted to the clamping blocks, and the clamping holes are provided with installation auxiliary grooves.

[0020] Furthermore, positioning groove lines for assisting in positioning and installing the navigation column are provided on the lower part of the navigation column and the mounting base column.

[0021] Adopting the above technical solutions, the beneficial effects are as follows:

[0022] ① The structure of the present utility model is simple and has strong practicability, and can effectively improve the puncture accuracy of the puncture needle: the navigation groove of the present utility model can fix the angle of the puncture needle during the puncture process, avoid the puncture needle from deviating, make the puncture more accurate, and has high safety;

[0023] ② The plate body guide plate body with an inner concave arc surface printed by 3D combining the CT scan data of the patient of the present utility model can be more closely attached to the body surface of the puncture part of the patient, has high stability, and is beneficial to the puncture operation;

[0024] ③ The detachable and splicable navigation board and navigation column of the present utility model can meet the requirements of micro-adjusting the position or puncture site of the puncture needle, etc., and the operation is simple and convenient: after the puncture needle is punctured under the guidance of the navigation board, only need to detach the navigation board and the navigation column, and then the medical staff can manually fine-tune the puncture needle to reduce or eliminate the puncture error;

[0025] ④ The present utility model can be 3D printed according to the scanned patient data, can be customized, and has a fast production speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 Structural schematic of the present utility model Figure 1 ;

[0028] Figure 2 Structural schematic of the present utility model Figure 2 ;

[0029] Figure 3 Exploded structural schematic of the present utility model Figure 1 ;

[0030] Figure 4 Exploded structural schematic of the present utility model Figure 2 ;

[0031] Figure 5 Visual structural schematic of the present utility model Figure 3 ;

[0032] Figure 6 Structural schematic of the present utility model Figure 4 ;

[0033] Figure 7 Structural schematic of the present utility model Figure 5 ;

[0034] Figure 8 Cross-sectional schematic view of the guide plate main body of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will, with reference to the accompanying drawings in the embodiments of the present utility model, clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0036] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0037] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0038] The following further describes the present utility model with reference to the accompanying drawings.

[0039] Embodiment 1: Refer to Figures 1 to 7 A 3D printing puncture-assisted navigation board as shown, which includes a guide plate main body 1 with a concave arc surface, a navigation column 2, and a mounting base column 3; the guide plate main body 1 can be adaptively attached to the surface of the puncture site; specifically in implementation, the specific shape of the guide plate main body 1 can be 3D printed according to the corresponding surface position of the puncture site (the position of the surface positioning point before CT scanning) in combination with the patient's CT scan data.

[0040] Specifically as Figure 2 shown, the mounting base column 3 is inclined and arranged on the guide plate main body 1; the navigation column 2 is detachably mounted on the guide plate main body 1 through the mounting base column 3; a navigation groove 24 corresponding to the puncture needle is provided in the navigation column 2.

[0041] In this embodiment, the navigation column 2 is detachably mounted on the mounting base column 3 by a snap-fit method.

[0042] Specifically asFigure 3 and Figure 4 As shown in Figure 4 , the guide plate body 1 includes a first guide plate 11 and a second guide plate 12. The first guide plate 11 and the second guide plate 12 are detachably spliced into the guide plate body 11. The mounting base columns 3 include the same first base column 31 and second base column 32. The first base column 31 and the second base column 32 are detachably spliced into the mounting base column 3. The first base column 31 and the second base column 32 are respectively located on the first guide plate 11 and the second guide plate 12. The navigation column 3 includes a first navigation column body 31 and a second navigation column body 32. The first navigation column body 31 and the second navigation column body 32 are detachably spliced into the navigation column 3.

[0043] In the present utility model, the guide plate body and the navigation column are of a detachable spliced structure. Specifically, the first navigation column body 21 and the second navigation column body 22 are respectively provided with a first clamping post 25 and a first clamping groove 26 on both sides of the navigation groove 24. The first clamping post 25 and the second clamping groove 26 on the first navigation column body 21 respectively cooperate and are clamped with the first clamping groove 26 and the first clamping post 25 on the second navigation column body 22.

[0044] The opposite surfaces of the first guide plate 11 and the second guide plate 12 are respectively provided with second clamping posts 13 and second clamping grooves 14 in a staggered manner. The second clamping posts 13 and the second clamping grooves 14 on the first guide plate 11 respectively cooperate and are clamped with the second clamping grooves 14 and the second clamping posts 13 on the second guide plate 12.

[0045] Specifically, as Figure 3 shown, the first navigation column body 21 and the second navigation column body 22 are relatively provided with clamping blocks 23. The first base column 31 and the second base column 32 are respectively provided with clamping holes 34 adapted to the clamping blocks 23. The clamping holes 34 are provided with installation auxiliary grooves 33. The clamping blocks 23 are clamped with the clamping holes 34 in a matching manner. During installation, the clamping block 23 of the first navigation column body 21 is correspondingly placed in the installation auxiliary groove 33, and then rotated in the direction of the clamping hole 34 for clamping, and the second navigation column body 31 can be installed on the first guide plate 11. The same operation can be performed on the second navigation column body 22 to install it on the second guide plate 12. Then, the first guide plate 11 and the second guide plate 12 can be clamped and spliced through the second clamping posts 13 and the second clamping grooves 14.

[0046] Alternatively, first splice the first guide plate 11 and the second guide plate 12, then splice the first navigation column body and the second navigation column body 22, and then place the clamping block 23 correspondingly in the installation auxiliary groove 33 and rotate it in the direction of the clamping hole 34.

[0047] Specifically, as Figure 6As shown in the figure, positioning groove lines 9 for assisting in the positioning and installation of the navigation column 2 on the installation base column 3 are provided on the lower part of the navigation column 2 and the installation base column 3. The positioning groove lines 9 include a first positioning groove line 91 on the side wall of the lower part of the navigation column 2, a second positioning groove line 92 on the top surface of the installation base column 3, and a third positioning groove line 93 on the side wall of the installation base column 3. The first positioning groove line 91, the second positioning groove line 92, and the third positioning groove line 93 correspond to each other. The positioning groove line corresponds to the second positioning groove. The positioning groove line and its second positioning groove enable the navigation column to be fitted and installed on the installation base column 3, ensuring that there is no deviation in the angle after rotation during installation.

[0048] A first positioning through hole 4 is provided on the first guide plate 11, and a second positioning through hole 5 is provided on the second guide plate 12.

[0049] Strip-shaped first positioning grooves 6 penetrating up and down are provided on the first guide plate 11 and the second guide plate 12, and a strip-shaped second positioning groove 8 penetrating up and down is provided on the first guide plate 11. Additionally, there may be an embodiment where third positioning grooves 62 are connected to both sides of the first positioning groove 6, and the third positioning grooves 62 penetrate through the first guide plate 11 and the second guide plate 12 respectively from front to back; the tail ends of the third positioning grooves 62 have third positioning holes 61. Specifically, the first positioning groove is used to further ensure that there is no deviation when the first guide plate and the second guide plate are spliced.

[0050] The first positioning holes 4 provided on the first guide plate 11 and the second positioning holes 5 provided on the second guide plate 12 are all three non-collinear positioning holes. According to the principle that three non-collinear points determine a plane, the matching degree and accuracy of the first guide plate and the second guide plate on the body surface plane are ensured.

[0051] Moreover, the navigation plate and the navigation column of the present utility model are respectively of a structure that can be spliced and disassembled, and the navigation column is detachably installed on the navigation plate. This can not only meet the requirement that after the guiding puncture needle is punctured, by detaching, it can meet the fine adjustment of the puncture position or puncture site of the puncture needle.

[0052] And compared with the case where the navigation column is fixedly connected to the navigation plate, when the present utility model is manufactured by 3D printing, it can be batch-printed according to components, which can greatly reduce the printing and manufacturing time.

[0053] Such as Figure 7 As shown in the figure, the inclination angle α, height of the installation base column of the present utility model, and the height of its navigation column are all obtained through digital processing in combination with the CT scan data of the target puncture segment of the patient, which is more personalized.

[0054] The following are the specific manufacturing steps of the present utility model, which can be referred to as follows:

[0055] 1) Clinical image positioning and acquisition

[0056] Determine the puncture site, apply 3 lead points for positioning near the planned puncture needle insertion path, and perform spiral CT thin-slice (less than 1.5 mm) scanning on the patient, with the scanning range covering the target puncture segment;

[0057] 2) Design the path

[0058] Import CT scan data such as the puncture target position into Materialise Mimics software and 3-Matic, three-dimensionally reconstruct the anatomical structure, design the puncture path from the skin to the puncture target after positioning the required puncture target, and observe the spatial position of this puncture path and the surrounding bony structures three-dimensionally to avoid important organs, large blood vessels, and bony structures, and then design a safe puncture path;

[0059] Complete the design of the puncture guiding column structure concentric with the virtual puncture needle track according to the scan data, then fit the skin surface to design the main body of the guide plate, and at the same time reserve positioning holes, positioning grooves, etc. on the main body of the guide plate;

[0060] Make an industrial model through soidworks, obtain a digitally customized detachable individualized 3D printed puncture assistive navigation plate, import it into the slicing software in the.Stl format, import it into the 3D printer in the.gx format after slicing for rapid printing and forming, and finally package and disinfect it with low-temperature plasma for standby.

[0061] When the present utility model is specifically used, splice the main body of the guide plate, install the navigation column on the installation base column with reference to the positioning groove line, and place the main body of the guide plate on the body surface of the part to be punctured to perform puncture; if during the treatment process, it is necessary to change the position of the puncture needle or change the surgical method, directly disassemble the main body of the guide plate.

[0062] And the present utility model has been successfully applied to perform successful punctures on multiple patients, and all punctures were successful at one time.

[0063] The following are several cases of patients.

[0064] Patient 1: Female, 65 years old, admitted to the hospital due to "left facial pain accompanied by herpes for more than 1 month", diagnosis: 1. Postherpetic neuralgia (facial nerve V1-V3)

[0065] Patient 2: Female, 47 years old, admitted to the hospital due to "pain in both lower extremities for more than 5 years, aggravated for more than 1 month", diagnosis: 1. Intervertebral disc herniation of the spine, joints or deep tissues 2. Pain in both lower legs to be diagnosed: Restless legs syndrome.

[0066] Patient 3: Male, 82 years old, admitted to the hospital due to "left flank and back pain for more than 2 months", diagnosis: 1. Postherpetic neuralgia (left thoracic nerve T6-T8) Patient 4: Female, 72 years old, admitted to the hospital due to "right flank and back pain for more than 1 month", diagnosis: 1. Postherpetic neuralgia

[0067] Patient 5: Male, 54 years old, admitted to the hospital due to "left leg pain for 3 years, right leg pain for more than 4 months, and aggravated for 1 month". Diagnosis: 1. Herniated intervertebral disc in the spine, joints or deep tissues.

[0068] The above 5 patients were all assisted by the 3D printing puncture needle navigation board of the present utility model for puncture. Among them, patient 1 was for trigeminal nerve puncture, patient 2 was for lumbar sympathetic nerve puncture, patients 3 - 4 were for thoracic nerve root puncture, and patient 5 was for lumbar nerve root puncture. The puncture process was smooth, the puncture was successful at one time, and nerve stimulation was elicited in all cases, and the operation was completed. The puncture path during the operation was consistent with the puncture path designed by Mimics software before the operation after three-dimensional reconstruction, and the postoperative effect of the patients was good.

[0069] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative work without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A 3D printed puncture-assisted navigation plate, characterized in that it includes a guide plate body with a concave arc surface, a navigation column, and a mounting base column; the guide plate body can be adaptively attached to the puncture site, and the navigation column is provided with a navigation groove corresponding to the puncture needle; the navigation column is detachably mounted on the guide plate body through the mounting base column.

2. The 3D printed puncture-assisted navigation board according to claim 1, wherein The navigation column is detachably mounted on the mounting base column by means of snap connection or screw connection.

3. The 3D printed puncture-assisted navigation plate according to claim 1, characterized in that the guide plate body includes a first guide plate and a second guide plate, and the first guide plate and the second guide plate are detachably spliced into the guide plate body; the mounting base column includes a first base column and a second base column, and the first base column and the second base column are detachably spliced into the mounting base column; the first base column and the second base column are respectively fixedly connected to the first guide plate and the second guide plate.

4. A 3D printed puncture assistance navigation board according to claim 3, characterized in that, The navigation column includes a first navigation column body and a second navigation column body, and the first navigation column body and the second navigation column body are detachably spliced into the navigation column.

5. The 3D printed puncture-assisted navigation board according to claim 3, characterized in that, The first guide plate is provided with a first positioning through hole, and the second guide plate is provided with a second positioning through hole.

6. The 3D printing puncture-assisted navigation board according to claim 5, wherein The first guide plate and the second guide plate are provided with a strip-shaped first positioning groove penetrating up and down, and the first guide plate is provided with a strip-shaped second positioning groove penetrating up and down.

7. A 3D printed puncture-assisted navigation board according to claim 6, characterized in that, Both sides of the first positioning groove are connected with a third positioning groove, and the third positioning groove penetrates through the first guide plate and the second guide plate respectively from front to back; The tail end of the third positioning groove has a third positioning hole.

8. A 3D printed puncture-assisted navigation board according to claim 4, wherein, The first navigation column body and the second navigation column body are relatively provided with clamping blocks, and the first base column and the second base column are respectively provided with clamping holes adapted to the clamping blocks, and the clamping holes are provided with installation auxiliary grooves.

9. A 3D printing puncture-assisted navigation board according to claim 4, characterized in that, The lower part of the navigation column and the mounting base column are provided with positioning groove lines for assisting in the positioning and installation of the navigation column.

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