CN210673413U

CN210673413U - Personalized forehead puncture drainage auxiliary guide plate based on 3D printing

Info

Publication number: CN210673413U
Application number: CN201920941094.0U
Authority: CN
Inventors: 李国良; 隋航; 李兴泽; 曹志刚; 潘文勇; 王正锐; 王盼; 蓝孝全
Original assignee: Qingdao Chengyang Peoples Hospital
Current assignee: Qingdao Chengyang Peoples Hospital
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-06-05
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses an individualized supplementary baffle of puncture drainage through forehead based on 3D prints, include the baffle body of being connected to form by first baffle, second baffle and third baffle, first baffle and third baffle left and right direction concatenation are in the same place and are located the top of second baffle, and the internal surface of first baffle and third baffle agrees with the appearance of the brow bony logo above the forehead, and the internal surface of second baffle agrees with the appearance of the bony logo below nasal wing both sides and the forehead; the guide plate body is also provided with a hollow guide pillar, a drainage tube is arranged in the hollow guide pillar, and self-tightening threaded fixing columns are arranged on the left side and the right side of the hollow guide pillar; this scheme adopts special connection structure, and it is fixed to screw up from tight thread tightening post and hollow guide pillar respectively through taking handle fixation nut and C shape fixer, and structural design is ingenious, uses convenient operation, can effectively improve the success rate of brain surgery puncture, reduces the damage to patient's brain tissue.

Description

Personalized forehead puncture drainage auxiliary guide plate based on 3D printing

Technical Field

The utility model belongs to the technical field of physiotherapy equipment, concretely relates to individualized through volume puncture drainage auxiliary guide based on 3D prints.

Background

When hydrocephalus is caused by some reasons, the catheter drainage is usually carried out on the ventricular system according to the development requirement of the disease, so that the quantity of cerebrospinal fluid is reduced, and the symptoms and damage caused by hydrocephalus are relieved. The traditional drainage mode is that a surgeon performs blind threading and drainage operation, the surgeon refers to a CT image, the position of the surgeon deviates 2-3cm from a hematoma side according to a sagittal midline of a head, and a puncture angle is determined according to the position of the hematoma.

Traditional drainage mode requires highly to doctor's experience, and because of factors such as CT scanning aspect and operation position cause the location inaccuracy easily, can't put the drainage tube to the optimum position accurately to probably because put into the position inaccuracy and lead to the drainage unsuccessful (successful standard takes cerebrospinal fluid to flow as the standard), if unsuccessful still need adjust repeatedly, easily cause the damage of brain tissue.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the defect that volume puncture drainage exists in the prior art, provide an individualized supplementary baffle through volume puncture drainage based on 3D prints to improve the success rate of brain surgery puncture, reduce the damage to patient's brain tissue.

The utility model discloses an adopt following technical scheme to realize: the personalized transfemoral puncture drainage auxiliary guide plate based on 3D printing is obtained by performing medical modeling and 3D printing according to head CT scanning data and comprises a guide plate body formed by connecting a first guide plate, a second guide plate and a third guide plate, wherein the first guide plate and the third guide plate are spliced together in the left-right direction and are positioned above the second guide plate, the inner surfaces of the first guide plate and the third guide plate are matched with the shape of an eyebrow arch bone mark above a forehead, and the inner surface of the second guide plate is matched with the shapes of bone marks on the two sides of a nasal wing and below the forehead;

the guide plate body is also provided with a hollow guide pillar, a drainage tube is arranged in the hollow guide pillar, and self-tightening thread fixing columns are arranged on the left side and the right side of the hollow guide pillar; the hollow guide pillar is divided into three parts by the first guide plate, the second guide plate and the third guide plate, the three parts of the hollow guide pillar are fixed through the C-shaped fixing device, threads are arranged on the outer side wall of the self-tightening thread fixing column, and the self-tightening thread fixing column is divided into two parts by the first guide plate, the second guide plate and the third guide plate and is fixed through the fixing nut with the handle.

Furthermore, the C-shaped fixer is a non-closed clamping ring, the central angle of the C-shaped fixer is larger than 180 degrees, and the drainage auxiliary guide plate can be conveniently separated from the drainage tube.

Furthermore, the inner diameter of the hollow guide column is larger than or equal to the outer diameter of the drainage tube, and the inner diameter of the C-shaped fixer is equal to the outer diameter of the middle height position of the hollow guide column.

Furthermore, the height of the hollow guide post is 12mm-20 mm.

Further, the diameter of the inner circle of the fixing nut with the handle is equal to the diameter of the section of the conical self-tightening thread fixing column from the bottom to the top 1/2.

Furthermore, the drainage auxiliary guide plate is made of photosensitive resin materials.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the supplementary baffle of puncture drainage through the forehead that this scheme provided, the interior surface shape of supplementary baffle of drainage agrees with the purpose that reachs the individuation location mutually with the appearance of the brow bone nature sign of patient's nose and forehead, separate into the triplex with the baffle body, and adopt special connection structure, it is fixed with tightening screw thread fixed column and hollow guide pillar respectively through taking handle fixation nut and C shape fixer, structural design is ingenious, convenient operation, can effectively improve the success rate of brain surgery puncture, reduce the damage to patient's brain tissue.

Drawings

FIG. 1 is a schematic view of a use state of a forehead puncture auxiliary guide plate according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an auxiliary guide plate for transfrontal puncture in an embodiment of the present invention;

wherein: 1. a first guide plate; 2. a second guide plate; 3. a third guide plate; 4,5, self-tightening thread fixing columns; 6,7, fixing a nut with a handle; 8. a hollow guide post; 9. a C-shaped holder; 10. a drainage tube; 11. hematoma.

Detailed Description

In order to clearly understand the above objects and advantages of the present invention, the following detailed description is made in conjunction with the accompanying drawings, and it should be noted that the left, right, up, down, and the like positional relationships in the present embodiment are based on the directions shown in fig. 2, specifically:

a personalized transfemoral puncture drainage auxiliary guide plate based on 3D printing is disclosed, as shown in figures 1 and 2, the drainage auxiliary guide plate comprises a guide plate body formed by splicing and connecting a first guide plate 1, a second guide plate 2 and a third guide plate 3, wherein the first guide plate 1 and the third guide plate 3 are positioned above the second guide plate 2, the first guide plate 1 and the third guide plate 3 are spliced together in the left-right direction and are matched with the shape of an eyebrow arch bone mark above a forehead, the second guide plate 2 is matched with the shapes of bone marks on the two sides of a nasal wing and below the forehead, a hollow guide post 8 is further arranged on the guide plate body, the height of the hollow guide post is 12-20 mm, preferably 16mm, a drainage tube 10 is arranged in the hollow guide post 8, and self-tightening

thread fixing columns

4 and 5 are arranged on the left side and the right side of the hollow guide post 8; the hollow guide post 8 comprises three parts which are respectively positioned on the first guide plate, the second guide plate and the third guide plate, the three parts of the hollow guide post 8 are fixed by a C-shaped fixer 9, the C-shaped fixer is a non-closed clamp ring, the central angle of the C-shaped fixer is larger than 180 degrees, and the drainage auxiliary guide plate can be conveniently separated from the drainage tube 10; be equipped with the screw thread on the lateral wall of self-tightening

thread fixing post

4 and 5, self-tightening

thread fixing post

4 and 5 are split into two parts to it is fixed through taking

handle fixation nut

6 and 7, and self-tightening thread fixing post 5 is located first baffle and second baffle, and self-tightening thread fixing post 4 is located second baffle and third baffle. That is to say: the first guide plate 1, the second guide plate 2 and the third guide plate 3 are connected into a whole through the hollow guide column 8, the second guide plate 2 is obtained by cutting a first cutting surface which is perpendicular to the hollow guide column 8 and the self-tightening threaded

fixing columns

4 and 5, the first guide plate 1 and the third guide plate 3 are obtained by cutting a second cutting surface which is perpendicular to the first cutting surface and cuts the hollow guide column 8, then the self-tightening threaded

fixing columns

4 and 5 are divided into an upper part and a lower part, and the hollow guide column 8 is divided into an upper left part, an upper right part and a lower part.

When the fixing device is used, as shown in fig. 1, the first guide plate 1, the second guide plate 2 and the third guide plate 3 are combined together and attached to the forehead of a patient, the self-tightening threaded

fixing columns

4 and 5 and the hollow guide post 8 are screwed and fixed respectively by using the

fixing nuts

6 and 7 with the handles and the C-shaped fixer 9, the fixing mode is more convenient and rapid to operate when used, and the accidental injury to the patient can not be caused; in addition, in this embodiment, the inner diameter of the hollow guide post 8 is greater than or equal to the outer diameter of the drainage tube 10, the inner diameter of the C-shaped fixer 9 is equal to the outer diameter of the middle position of the hollow guide post 8, the inner diameter of the

fixing nuts

6 and 7 with handles is equal to the cross-sectional diameter of the conical self-tightening

screw fixing posts

4 and 5 from the bottom to the top 1/2, the tail end of the drainage tube 10 is provided with an expanded fixing device, the outer diameter of the expanding fixing device is greater than the inner diameter of the C-shaped fixer 9 of the hollow guide post, and after successful drainage, the guide plate body is separated into three parts by taking the hollow guide post as the center, so.

The drainage auxiliary guide plate in the embodiment is obtained by performing medical modeling and 3D printing according to CT scan data of the head, the shape of the inner surface of the drainage auxiliary guide plate is matched with the shape of the brow arch bony identification of the nose and forehead of a patient to achieve the purpose of individual positioning, and the position and the angle of the drainage tube 10 on the drainage auxiliary guide plate are designed and determined according to CT scan image data of the skull of the patient. The 3D printing technology is an existing mature technology and comprises the following specific steps: all STL files exported by the medical modeling software are imported into special slicing software of an SLA type 3D printer for slicing, the STL files are converted into files which can be read and printed by the 3D printer, the files are copied to the 3D printer through a U disk for printing, and the used printing materials are SLA (photosensitive resin).

In particular, when in use: attaching the second guide plate 2 to corresponding skin according to the positions of the nose and the eyebrow bows at two sides, marking the skin according to the central position of the hollow guide post 8 on the skin contact surface of the guide plate, taking down the guide plate, cutting the skin at the marked position to expose the skull, attaching the second guide plate 2 to the corresponding position again, assisting in drilling the skull according to the central line direction of the hollow guide post 8, combining the third guide plate 3 to the second guide plate 2, sleeving the fixing nuts 6 with handles on the self-tightening thread fixing columns at two sides, screwing up the second guide plate 2 and the third guide plate 3 to complete the connection and assembly, inserting the drainage tube 10 into the guide hole of the hollow guide post 8, conveniently observing the specific conditions of partial drainage tubes when the guide hole and the skull enter because the guide plate 1 is not assembled yet, and combining the first guide plate 1, the second guide plate 2 and the third guide plate 3 after the drainage tube part enters the skull, fixing the hollow guide post 8 by using the C-shaped fixer 9, then continuously puncturing along the direction of the hollow guide post and the preoperative hematoma depth, wherein when blood flows out to a preset depth of the drainage tube 10, the puncture is successful, then taking down the

fixing nuts

6 and 7 with handles, respectively taking down the first guide plate 1, the second guide plate 2 and the third guide plate 3, separating the drainage tube 10 from the gap by using the C-shaped fixer 9, suturing the skin to fix the drainage tube 10, and finishing the operation.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The personalized transfemoral puncture drainage auxiliary guide plate based on 3D printing is obtained by performing medical modeling and 3D printing according to head CT scanning data, and is characterized by comprising a guide plate body formed by connecting a first guide plate (1), a second guide plate (2) and a third guide plate (3), wherein the first guide plate (1) and the third guide plate (3) are spliced together in the left-right direction and are positioned above the second guide plate (2), the inner surfaces of the first guide plate (1) and the third guide plate (3) are matched with the shape of an eyebrow bone mark above a forehead, and the inner surface of the second guide plate (2) is matched with the shape of bone marks on the two sides of a nasal alar and below the forehead;

a hollow guide post (8) is further arranged on the guide plate body, a drainage tube (10) is arranged in the hollow guide post (8), and self-tightening threaded fixing columns (4,5) are arranged on the left side and the right side of the hollow guide post (8); the hollow guide column (8) is divided into three parts by the first guide plate (1), the second guide plate (2) and the third guide plate (3), the three parts of the hollow guide column (8) are fixed through the C-shaped fixing device (9), threads are arranged on the outer side walls of the self-tightening thread fixing columns (4,5), and the self-tightening thread fixing columns (4,5) are divided into two parts by the first guide plate (1), the second guide plate (2) and the third guide plate (3) and fixed through fixing nuts (6,7) with handles.

2. The 3D printing-based personalized transfrontal puncture drainage auxiliary guide plate according to claim 1, wherein: the C-shaped fixer (9) is a non-closed snap ring, and the central angle of the C-shaped fixer is larger than 180 degrees.

3. The 3D printing-based personalized transfrontal puncture drainage auxiliary guide plate according to claim 1, wherein: the inner diameter of the hollow guide post (8) is more than or equal to the outer diameter of the drainage tube (10), and the inner diameter of the C-shaped fixer (9) is equal to the outer diameter of the middle height position of the hollow guide post (8).

4. The 3D printing-based personalized transfrontal puncture drainage auxiliary guide plate according to claim 3, wherein: the height of the hollow guide post (8) is 12mm-20 mm.

5. The 3D printing-based personalized transfrontal puncture drainage auxiliary guide plate according to claim 2 or 4, wherein: the inner circle diameter of the fixing nuts (6,7) with handles is equal to the section diameter of the conical self-tightening thread fixing columns (4,5) from the bottom to the top 1/2.

6. The 3D printing-based personalized transfrontal puncture drainage auxiliary guide plate according to claim 5, wherein: the drainage auxiliary guide plate is made of photosensitive resin materials.