3D printing auxiliary guide plate for finger joint cutting reduction

Abstract

The utility model relates to the technical field of medical 3D printing, and discloses a 3D printing auxiliary guide plate for finger joint cutting reduction, which comprises a mounting bottom plate, an arc-shaped angle groove is formed in the middle of the upper end of the mounting bottom plate, a connecting piece is arranged above the arc-shaped angle groove, and a cutting guide plate assembly is arranged at the rear end of the connecting piece. A reset guide plate assembly is arranged at the front end of the connecting piece, and a palm rest assembly is arranged on the rear side of the upper end of the mounting bottom plate. According to the surgical guide plate, due to the arrangement of the cutting guide plate assembly and the reduction guide plate assembly, when a child carries out a finger joint cutting reduction operation, manual fixing and positioning by medical staff are not needed, the problems of dislocation and inaccurate positioning do not occur in the operation process, and compared with a traditional surgical guide plate used by an adult, the surgical guide plate has the advantages that the surgical guide plate is simple in structure and convenient to use. The auxiliary guide plate is printed by the 3D printing equipment according to the actual data of the child patient, so that the auxiliary guide plate is more suitable for the child patient to use, and the operation efficiency of the child patient is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical 3D printing, in particular to a 3D printed auxiliary guide plate for finger joint cutting and reduction. Background Art

[0002] Finger joints are a type of joint in the human skeletal system and one of the joints we use most frequently in our daily activities. They have an important function, allowing our fingers to have flexible and fine movements. Compared with adults, children's finger joints have inadequate bone development, and the development of cartilage and ligaments is still in progress. This also causes children's finger joints to be softer and more prone to injury than adults.

[0003] At present, when performing knuckle bone cutting and knuckle bone reduction on children's finger joints, since children's knuckles are smaller than those of adults, the surgical guides that adults can use are not convenient for children to use. The fixation and positioning work during the operation are performed by medical staff holding surgical instruments, which easily leads to problems of dislocation and inaccurate positioning. In addition, traditional guides have a simple structure, lack of correlation with each other, and are mostly independent. They need to be frequently replaced during operation, which is cumbersome and inconvenient. Therefore, it is necessary to provide a 3D printed auxiliary guide for knuckle cutting and reduction to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a 3D printed auxiliary guide for finger joint cutting and reduction, which solves the problems mentioned in the above background technology that the existing adult guide is inconvenient for children to use, is prone to dislocation and inaccurate positioning during surgery, and traditional guides lack correlation and are not convenient to operate and use.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a 3D printed auxiliary guide for finger joint cutting and resetting, comprising a mounting base, an arc angle groove is provided in the middle of the upper end of the mounting base, a connecting piece is provided above the arc angle groove, a cutting guide assembly is provided at the rear end of the connecting piece, a resetting guide assembly is provided at the front end of the connecting piece, a palm rest assembly is provided at the rear side of the upper end of the mounting base, an angle adjustment assembly is provided at the upper end of the arc angle groove, the cutting guide assembly comprises a cutting guide body, a cutting groove, a fixed guide block and an extension block, a cutting groove is provided at the upper end of the cutting guide body, a fixed guide block is provided at the rear side of the cutting groove, and an extension block is provided at the front end of the cutting guide body;

[0008] The reset guide assembly includes a reset guide body, a second fixed guide block, a left arc rod, a first needle guide block, a right arc rod, a second needle guide block and a second extension block. The front side of the upper end of the reset guide body is provided with a second fixed guide block, a left arc rod is provided on the left side behind the second fixed guide block, a first needle guide block is provided above the front end of the left arc rod, a right arc rod is provided on the right side behind the second fixed guide block, a second needle guide block is provided above the front end of the right arc rod, and a second extension block is provided at the rear end of the reset guide body.

[0009] Optionally, the palm rest assembly includes a support plate, a wrist pad, a support rod and a reinforcing screw, a wrist pad is provided above the rear end of the support plate, a support rod is provided at the lower end of the support plate, and a reinforcing screw is provided below the rear end of the wrist pad.

[0010] Optionally, the angle adjustment assembly includes a bottom clamp, a support column, a threaded rod, a stop block and a tightening button, the upper end of the bottom clamp is provided with a support column, the upper end of the support column is provided with a threaded rod, the upper end of the threaded rod is provided with a stop block, and the upper end of the stop block is provided with a tightening button.

[0011] Optionally, two connecting rods are threadedly mounted on the front and rear ends of the connecting member, and the two connecting rods are respectively connected to the extension block 1 and the extension block 2.

[0012] Optionally, there are two symmetrically distributed cutting grooves, there are two symmetrically distributed fixed guide blocks 1, and the centers of the contact ends of the fixed guide blocks 1 and the cutting guide plate body are both through structures.

[0013] Optionally, there are two fixed guide blocks 2 symmetrically distributed, and the center of the contact end of the fixed guide block 2 and the reset guide plate body both form a penetrating structure, the overall length of the left arc rod is shorter than the overall length of the right arc rod, and the needle threading guide block 1 and the needle threading guide block 2 and the center position of the contact end of the left arc rod and the right arc rod both form a penetrating structure.

[0014] Optionally, the wrist pad is made of latex material, and there are four support rods symmetrically distributed.

[0015] Optionally, the middle part of the bottom clamp is connected by an arc-shaped plate, a threaded hole is opened on the inner side of the upper end of the support column, the threaded rod and the threaded hole are matched in size, the stop block and the threaded rod are an integrated structure, a tightening hole is opened on the inner side of the upper end of the stop block, and the tightening hole is threadably matched with the lower end structure of the tightening button.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] 1. The utility model has a reasonable structure. Through the cutting guide assembly and the resetting guide assembly, when children undergo finger joint cutting and resetting surgery, medical staff no longer need to manually fix and position them, so that there will be no problems of dislocation and inaccurate positioning during the operation. Moreover, compared with the traditional surgical guide used by adults, the auxiliary guide is printed by 3D printing equipment according to the actual data of child patients, which is more suitable for use by child patients and improves the surgical efficiency of child patients.

[0018] 2. In the utility model, the child patient can place his palm on the support plate, and the wrist is supported by the wrist pad at the back, so that the entire palm and finger joints can be more relaxed, which is convenient for the subsequent cutting and reduction operation. In addition, through the design of the threaded rod and the support column, the overall height of the cutting guide assembly and the reduction guide assembly can be adjusted according to the needs of the operation. Secondly, through the design of the support block and the tightening button, the connecting parts can be tightened and loosened, which is convenient for adjusting the front and rear angles of the cutting guide assembly and the reduction guide assembly, thereby improving its applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from top view;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the cutting guide assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the reset guide plate assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the palm rest assembly of the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the angle adjustment component of the utility model.

[0024] In the figure: 1. Install the base plate; 2. Arc angle groove; 3. Connector; 4. Cutting guide assembly; 401. Cutting guide body; 402. Cutting groove; 403. Fixed guide block one; 404. Extension block one; 5. Reset guide assembly; 501. Reset guide body; 502. Fixed guide block two; 503. Left arc rod; 504. Needle threading guide block one; 505. Right arc rod; 506. Needle threading guide block two; 507. Extension block two; 6. Palm rest assembly; 601. Support plate; 602. Wrist pad; 603. Support rod; 604. Reinforcement screw; 7. Angle adjustment assembly; 701. Bottom splint; 702. Support column; 703. Threaded rod; 704. Butt block; 705. Tightening button. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example: Reference Figure 1-Figure 5 The 3D printed auxiliary guide for finger joint cutting and reduction shown in the figure comprises a mounting base plate 1, an arc angle groove 2 is provided in the middle of the upper end of the mounting base plate 1, a connecting piece 3 is clamped and installed above the arc angle groove 2, two connecting rods are threadedly installed at the front and rear ends of the connecting piece 3, and the two connecting rods are respectively threadedly connected to the extension block 1 404 and the extension block 2 507, a cutting guide assembly 4 is threadedly installed at the rear end of the connecting piece 3, a resetting guide assembly 5 is threadedly installed at the front end of the connecting piece 3, a palm rest assembly 6 is screwed on the rear side of the upper end of the mounting base plate 1, and an angle adjustment assembly is slidably installed at the upper end of the arc angle groove 2. Section assembly 7, the cutting guide assembly 4 includes a cutting guide body 401, a cutting groove 402, a fixed guide block 403 and an extension block 404, the upper end of the cutting guide body 401 is provided with a cutting groove 402, two cutting grooves 402 are symmetrically distributed, the rear side of the cutting groove 402 is provided with a fixed guide block 403, two fixed guide blocks 403 are symmetrically distributed, the center of the fixed guide block 403 and the contact end of the cutting guide body 401 are both through structures, and the front end of the cutting guide body 401 is bonded with an extension block 404; the reset guide assembly 5 includes a reset guide body 501, a fixed guide block The second guide block 502, the left arc rod 503, the needle guide block 1 504, the right arc rod 505, the needle guide block 2 506 and the extension block 2 507 are provided on the front side of the upper end of the reset guide body 501. There are two fixed guide blocks 2 502 symmetrically distributed, and the center of the contact end of the fixed guide block 2 502 and the reset guide body 501 is a through structure, which is convenient for inserting the positioning needle to perform intraoperative positioning reinforcement work. The spacing between the two fixed guide blocks 2 502 and the two fixed guide blocks 1 403 is equal. The left side of the rear of the fixed guide block 2 502 is provided with a left arc rod 503, and the left arc rod The overall length of 503 is shorter than that of the right arc rod 505. A needle guide block 1 504 is provided above the front end of the left arc rod 503, a right arc rod 505 is provided on the right side behind the fixed guide block 2 502, and a needle guide block 2 506 is provided above the front end of the right arc rod 505. The center positions of the needle guide blocks 1 504 and 506 and the contact ends of the left arc rod 503 and the right arc rod 505 are both through structures, so that the two Kirschner wires inserted during the operation are at different angles, which is convenient for the subsequent reduction of the finger joints. The rear end of the reduction guide body 501 is bonded and installed with an extension block 2 507.

[0027] Before starting the operation, the reduction guide body 501 is attached to the finger joint, and the positioning needle is inserted into the fixed guide block 502 for vertical positioning. Then, two Kirschner wires at different angles are inserted into the finger joint through the needle guide block 1 504 and the needle guide block 2 506 for guiding and positioning. After the insertion is completed, the reduction guide body 501 is removed, and then the cutting guide body 401 is attached to the upper end of the finger joint bone, and the positioning needle is passed through the center of the fixed guide block 1 403 to fix it on the finger joint. The cutting instrument is inserted into the cutting groove 402 for cutting to ensure the operation. No misalignment occurs during the process. After the cutting is completed, the cutting guide body 401 is removed, and the finger joint is repositioned along the Kirschner wires inserted previously along the needle guide block 1 504 and the needle guide block 2 506. The cutting guide assembly 4 and the repositioning guide assembly 5 are both printed by 3D printing equipment based on the actual data of the child patient. Compared with the traditional surgical guide used by adults, it is more suitable for child patients and does not require manual fixation and positioning by medical staff, so that there will be no misalignment and inaccurate positioning during the operation, thereby improving the surgical efficiency of child patients.

[0028] As an optional implementation in this embodiment, Figure 1 , Figure 4 and Figure 5 As shown, the palm rest assembly 6 includes a support plate 601, a wrist pad 602, a support rod 603 and a reinforcing screw 604. The upper clamp of the rear end of the support plate 601 is mounted with a wrist pad 602, and the wrist pad 602 is made of latex material. The lower end of the support plate 601 is screwed with a support rod 603, and there are four support rods 603 symmetrically distributed. The lower rear end of the wrist pad 602 is threadedly mounted with a reinforcing screw 604; the angle adjustment assembly 7 includes a bottom splint 701, a support column 702, a threaded rod 703, a stop block 704 and a tightening button 705. The middle part of the bottom splint 701 is connected by an arc plate. The outer diameter is exactly the same as the inner diameter of the arc angle groove 2. A support column 702 is welded and installed on the upper end of the bottom clamping plate 701. A threaded hole is provided on the inner side of the upper end of the support column 702. The threaded rod 703 and the threaded hole are adapted in size. A threaded rod 703 is threadedly installed on the upper end of the support column 702. A stopper 704 is welded and installed on the upper end of the threaded rod 703. The stopper 704 and the threaded rod 703 are an integrated structure. In addition, a tightening hole is provided on the inner side of the upper end of the stopper 704. The tightening hole is threadedly adapted to the lower end structure of the tightening button 705. The tightening button 705 is threadedly installed on the upper end of the stopper 704.

[0029] The support plate 601 is provided so that the child patient can place his palm on it, and the wrist is supported by the wrist pad 602 at the back, so that the entire palm and finger joints can be more relaxed, which is convenient for the subsequent cutting and reduction operation. In addition, through the threaded installation method of the threaded rod 703 and the support column 702, the overall height of the cutting guide assembly 4 and the reduction guide assembly 5 can be adjusted according to the needs of the operation. Through the adjustable height design of the support block 704 and the tightening button 705, the connecting piece 3 can be tightened and loosened, which is convenient for adjusting the front and rear angles of the cutting guide assembly 4 and the reduction guide assembly 5, thereby improving its applicability.

[0030] Working principle of the utility model: the 3D printed auxiliary guide for finger joint cutting and reduction is used. Before starting the operation, the reduction guide body 501 is attached to the finger joint, and the positioning needle is inserted into the fixed guide block 502 for vertical positioning. Then, two Kirschner wires at different angles are inserted into the finger joint through the needle guide block 1 504 and the needle guide block 2 506 for guiding and positioning. After the insertion is completed, the reduction guide body 501 is removed, and then the cutting guide body 401 is attached to the upper end of the finger joint bone, and the positioning needle is passed through the center of the fixed guide block 1 403 to fix it on the finger joint, and the cutting groove 402 is inserted into the cutting groove 402. The cutting instrument is used for cutting to ensure that no dislocation occurs during the operation. After the cutting is completed, the cutting guide body 401 is removed, and the kirschner wire inserted along the needle guide block 1 504 and the needle guide block 2 506 is used to reposition the finger joint. The cutting guide assembly 4 and the repositioning guide assembly 5 are both printed by 3D printing equipment based on the actual data of the child patient. Compared with the traditional surgical guide used by adults, it is more suitable for use by child patients, and medical staff no longer need to manually fix and position it, so that there will be no problems of dislocation and inaccurate positioning during the operation, thereby improving the surgical efficiency of child patients.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A 3D printed auxiliary guide plate for finger joint cutting and reduction, comprising a mounting base plate (1), characterized in that: An arc-shaped angle groove (2) is provided in the middle of the upper end of the mounting base plate (1), a connecting piece (3) is provided above the arc-shaped angle groove (2), a cutting guide assembly (4) is provided at the rear end of the connecting piece (3), a reset guide assembly (5) is provided at the front end of the connecting piece (3), a palm rest assembly (6) is provided at the rear side of the upper end of the mounting base plate (1), an angle adjustment assembly (7) is provided at the upper end of the arc-shaped angle groove (2), the cutting guide assembly (4) comprises a cutting guide body (401), a cutting groove (402), a fixed guide block (403) and an extension block (404), a cutting groove (402) is provided at the upper end of the cutting guide body (401), a fixed guide block (403) is provided at the rear side of the cutting groove (402), and an extension block (404) is provided at the front end of the cutting guide body (401); The reset guide assembly (5) comprises a reset guide body (501), a second fixed guide block (502), a left arc-shaped rod (503), a first needle guide block (504), a right arc-shaped rod (505), a second needle guide block (506) and a second extension block (507). The front side of the upper end of the reset guide body (501) is provided with the second fixed guide block (502), the left arc-shaped rod (503) is provided on the left side behind the second fixed guide block (502), the first needle guide block (504) is provided above the front end of the left arc-shaped rod (503), the right arc-shaped rod (505) is provided on the right side behind the second fixed guide block (502), the second needle guide block (506) is provided above the front end of the right arc-shaped rod (505), and the rear end of the reset guide body (501) is provided with the second extension block (507).

2. The 3D printed auxiliary guide plate for finger joint cutting and reduction according to claim 1, characterized in that: The palm rest assembly (6) comprises a support plate (601), a wrist pad (602), a support rod (603) and a reinforcing screw (604); a wrist pad (602) is provided above the rear end of the support plate (601); a support rod (603) is provided at the lower end of the support plate (601); and a reinforcing screw (604) is provided below the rear end of the wrist pad (602).

3. The 3D printed auxiliary guide plate for finger joint cutting and reduction according to claim 1, characterized in that: The angle adjustment assembly (7) comprises a bottom clamping plate (701), a support column (702), a threaded rod (703), a stop block (704) and a tightening button (705); the upper end of the bottom clamping plate (701) is provided with a support column (702); the upper end of the support column (702) is provided with a threaded rod (703); the upper end of the threaded rod (703) is provided with a stop block (704); and the upper end of the stop block (704) is provided with a tightening button (705).

4. The 3D printed auxiliary guide plate for finger joint cutting and reduction according to claim 1, characterized in that: Two connecting rods are threadedly mounted at the front and rear ends of the connecting member (3), and the two connecting rods are respectively connected to the extension block 1 (404) and the extension block 2 (507).

5. The 3D printed auxiliary guide plate for finger joint cutting and reduction according to claim 1, characterized in that: There are two symmetrically distributed cutting grooves (402), there are two symmetrically distributed fixed guide blocks (403), and the centers of the contact ends of the fixed guide blocks (403) and the cutting guide plate body (401) are both through structures.

6. The 3D printed auxiliary guide plate for finger joint cutting and reduction according to claim 1, characterized in that: The two fixed guide blocks (502) are symmetrically distributed, and the centers of the contact ends of the fixed guide blocks (502) and the reset guide body (501) are both through-structured. The overall length of the left arc-shaped rod (503) is shorter than the overall length of the right arc-shaped rod (505). The centers of the contact ends of the needle threading guide blocks (504) and the needle threading guide blocks (506) and the left arc-shaped rod (503) and the right arc-shaped rod (505) are both through-structured.

7. The 3D printed auxiliary guide plate for finger joint cutting and reduction according to claim 2, characterized in that: The wrist pad (602) is made of latex material, and there are four support rods (603) symmetrically distributed.

8. The 3D printed auxiliary guide plate for finger joint cutting and reduction according to claim 3, characterized in that: The middle part of the bottom clamping plate (701) is connected by an arc-shaped plate, a threaded hole is provided on the inner side of the upper end of the support column (702), the threaded rod (703) and the threaded hole are matched in size, the stop block (704) and the threaded rod (703) are an integrated structure, a tightening hole is provided on the inner side of the upper end of the stop block (704), and the tightening hole is threadably matched with the lower end structure of the tightening button (705).

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