Surgical navigation template

Abstract

This utility model relates to the field of surgical template technology, specifically a surgical navigation template, including a positioning frame plate and a detachable main template that is inserted into the bottom of the positioning frame plate. The bottom of the main template has a model guide groove, and the side wall of the positioning frame plate has a sliding groove. The right end of the sliding groove has a movable positioning component for occlusion, and the left end of the sliding groove has a sliding clamping component for fixing with the main template. This surgical navigation template, by setting the main template with model guide groove and the positioning frame plate with mounting groove to be inserted and matched, and with the cooperation of the fixing block and the sliding clamping component, can stably clamp and match the main template of different lengths. The movable positioning component slides and matches the positioning frame plate. Under the action of the limiting plate with occlusion block, it is convenient for the occlusion block to correspond to the oral cavity of patients with different facial shapes, which helps to fix the occlusion position. Moreover, both the sliding clamping component and the movable positioning component can be easily removed from the positioning frame plate for cleaning.

Description

Technical Field

[0001] This utility model relates to the field of surgical template technology, specifically to surgical navigation templates. Background Technology

[0002] The differential mapping surgical navigation template combines medical imaging technology, computer-aided design, and 3D printing technology. By acquiring the patient's medical imaging data, computer-aided design software is used for 3D reconstruction and planning. Then, a navigation template that matches the patient's anatomical structure is designed and manufactured using 3D printing technology. The template provides precise guidance during surgery, enabling doctors to accurately position and operate the device.

[0003] Utility model announcement CN222285601U discloses a combined external navigation template for assisting sacroiliac screw implantation, comprising: a main navigation template, a secondary navigation template, and a combined sleeve. One end of the main navigation template is connected to and fixed by a positioning needle. The main navigation template is provided with: half of a first positioning sleeve and a first positioning hole, which is located on the outermost right end of the main template; the main navigation template is also provided with a second positioning sleeve and a second positioning hole, which is located on the upper left side of the inner side of the first sleeve; a guide sleeve and a guide hole are located on the lower left end of the main template; the secondary navigation template is provided with half of a third positioning sleeve and half of a third positioning hole.

[0004] The above technical solution combines the main navigation template and the half of the positioning sleeve of the secondary navigation plate into a complete navigation template through a combination sleeve. Precise positioning is achieved through two positioning holes and one guide hole, and the positioning pin plays an auxiliary positioning role. On the other hand, it avoids excessive cutting and surgical damage. However, when performing surgery on the face and reshaping the nose, the length of the navigation template printed varies according to the different facial sizes of different patients, making it inconvenient to match and install it with the frame plate. Furthermore, the frame plate is not convenient for flexible adjustment of the installation position, and it is not convenient for the patient to bite and wear it, which is not convenient for preoperative positioning and preparation. Summary of the Invention

[0005] The purpose of this invention is to provide a surgical navigation template to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The surgical navigation template includes a positioning frame plate and a detachable main template that is inserted into the bottom of the positioning frame plate. The bottom of the main template is provided with a model guide groove, and the side wall of the positioning frame plate is provided with a sliding groove. The right end of the sliding groove is provided with a movable positioning component for occlusion, and the left end of the sliding groove is provided with a sliding clamping component for fixing to the main template.

[0008] The movable positioning component includes a card plate and an adjustable limiting plate on the card plate. A second slider is provided at the middle of the side end of the card plate. A second screw hole is provided on the top of the card plate. A third fastening bolt is provided in the second screw hole. Limiting grooves are symmetrically provided on the top of the card plate. The limiting plate is inserted into the corresponding limiting groove. A second positioning hole is provided on both side walls of the card plate. A second positioning bolt is provided in each of the second positioning holes.

[0009] The sliding clamping assembly includes a clamping plate and a second fastening bolt on the top of the clamping plate for position fixation. A first slider is provided at the middle of the side end of the clamping plate. A first screw hole is provided on the top of the clamping plate, and a second fastening bolt is threaded into the first screw hole. A first positioning hole is provided on both sides of the clamping plate, and a first positioning bolt is provided in the first positioning hole.

[0010] Furthermore, the bottom of the positioning frame plate is provided with an installation groove, and the width of the inner wall of the installation groove is adapted to the thickness of the outer wall of the main template.

[0011] In this invention, the mounting groove facilitates the insertion and installation of main templates of different lengths, which helps in the disassembly and replacement of the main templates.

[0012] Specifically, the lower surface of the positioning frame plate is provided with symmetrical fixing blocks near the right end. One of the fixing blocks has a threaded groove on its outer wall. A first fastening bolt is provided in the threaded groove. The first fastening bolt passes through the threaded groove and its end is closely fitted to the outer wall of the main template.

[0013] In this utility model, a fixing block with a first fastening bolt is used. The end of the first fastening bolt is manually rotated, and the first fastening bolt is threadedly connected to the threaded groove. The main template is inserted into the mounting groove, and the right end of the main template is close to the right end of the mounting groove. The fixing block clamps the main template, and the right side of the main template is fixed under the friction of the first fastening bolt.

[0014] It should be noted that the left end of the slide groove passes through the positioning frame plate, and the width of the inner wall of the slide groove is adapted to the width of the outer walls of the first slider and the second slider.

[0015] In this utility model, both the first slider and the second slider slide from the slide groove to the left side and are then taken out from the left end of the slide groove, so as to realize the cleaning and fitting of the sliding clamping component and the movable positioning component from the positioning frame plate.

[0016] Furthermore, the card plate is U-shaped, and the two ends of the second slider are respectively bonded and fixed to the inner wall surface of the card plate. The third fastening bolt passes through the second screw hole, and the end of the third fastening bolt is tightly fitted to the outer end of the positioning frame plate.

[0017] In this invention, the card plate is engaged with the positioning frame plate, and with the cooperation of the second slider, the card plate can move horizontally on the positioning frame plate. The third fastening bolt is threadedly connected to the second screw hole, and its end is close to the positioning frame plate and fixes the position of the card plate on the positioning frame plate under the action of friction.

[0018] It is worth noting that both of the limiting plates are elongated, and the width of the outer wall of the limiting plate is adapted to the width of the inner wall of the limiting groove. Each limiting plate has an engagement block at its bottom. The second positioning bolt passes through the second positioning hole, and the end of the second positioning bolt is closely fitted to the outer wall of the limiting plate.

[0019] In this invention, a limiting plate with an occlusal block is inserted into a limiting groove. The limiting plate slides on the card plate, and the second positioning bolt is threaded into the second positioning hole. Under the action of friction, the position of the limiting plate after adjustment is fixed, so that the occlusal block extends into the patient's oral cavity and the corresponding depth is adjusted. This facilitates the occlusal fixation of different patients with the corresponding positioning frame plate. Moreover, the two limiting plates can be adjusted independently to fit and position different tooth occlusion positions.

[0020] Furthermore, the clamping plate is U-shaped, and the two ends of the first slider are respectively bonded and fixed to the inner wall surface of the clamping plate. The second fastening bolt passes through the first screw hole and its end is tightly fitted to the outer end face of the positioning frame plate. The end of the first positioning bolt passes through the first positioning hole and its end is tightly fitted and close to the outer wall of the main template.

[0021] In this invention, the clamping plate moves horizontally on the positioning frame plate with the cooperation of the first slider. The second fastening bolt is threadedly connected to the first screw hole, and its end is fixed on the position of the clamping plate on the positioning frame plate under the action of friction, so that the bottom of the clamping plate can be fitted and clamped with the main template of different lengths. The first positioning bolt is threadedly connected to the first positioning hole, and the end of the first positioning bolt contacts the main template and is fixed on the position of the main template under the action of friction, so as to realize the combination and fixation of the main template and the positioning frame plate.

[0022] In addition, each of the positioning frame plates is provided with a sealing block on the left end, and a through hole is symmetrically opened on the sealing block. A limit bolt is provided in each of the through holes, and a limit screw hole is opened on the left end of the positioning frame plate at the position corresponding to the through hole.

[0023] In this utility model, the sealing block is threadedly connected to the corresponding limiting screw hole by a limiting bolt passing through the through hole, and the right end face of the limiting bolt is tightly fitted with the left end face of the sealing block, so as to seal the left end of the slide groove by the sealing block, thereby increasing the overall structural stability of the positioning frame plate. The limiting bolt can be disassembled and removed to separate the sealing block from the positioning frame plate, making it convenient for the sliding clamping component and the movable positioning component in the middle to be taken out and fitted.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. This utility model uses a main template with a model guide groove to be inserted and matched with a positioning frame plate with an installation groove. With the cooperation of the fixing block and the sliding clamping component, the main templates of different lengths are stably clamped and matched. The movable positioning component slides and matches the positioning frame plate. Under the action of the limiting plate with the biting block, the biting block can be easily matched with the oral cavity of patients with different face shapes, which helps to fix the biting position. Moreover, both the sliding clamping component and the movable positioning component can be easily disassembled and removed from the positioning frame plate for cleaning.

[0026] This utility model uses a first fastening bolt and a fixing block to fix the right end of the main template inserted into the mounting slot. The clamping plate, with the cooperation of the first positioning bolt, fixes the left end of the main template in the mounting slot. With the threaded installation of the second fastening bolt, the clamping plate is fixed on the positioning frame plate. The clamping plate, with the cooperation of the second fastening bolt, is fixed on the positioning frame plate. With the cooperation of the second positioning bolt, the position of the limiting plate is fixed by manual screwing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the main template structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the positioning frame plate structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the sliding clamping assembly structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the positioning frame structure of this utility model;

[0032] Figure 6 This is a schematic diagram of the movable positioning component of this utility model.

[0033] The meanings of the labels in the diagram are as follows:

[0034] 1. Positioning frame plate; 10. Mounting groove; 11. Slide groove; 12. Fixing block; 120. Threaded groove; 121. First fastening bolt; 13. Sealing block; 130. Through hole; 131. Limit bolt; 14. Limit screw hole;

[0035] 2. Main template; 20. Model guide groove;

[0036] 3. Sliding clamping assembly; 30. Clamping plate; 300. First slider; 301. First screw hole; 302. First positioning hole; 303. First positioning bolt; 31. Second fastening bolt;

[0037] 4. Movable positioning component; 40. Clamping plate; 400. Second slider; 401. Second screw hole; 402. Third fastening bolt; 403. Limiting groove; 404. Second positioning hole; 405. Second positioning bolt; 41. Limiting plate; 410. Engaging block. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see Figures 1-6 This embodiment provides the following technical solution:

[0040] The surgical navigation template includes a positioning frame plate 1 and a detachable main template 2 that is inserted into the bottom of the positioning frame plate 1. The bottom of the positioning frame plate 1 has an installation groove 10, and the width of the inner wall of the installation groove 10 is adapted to the thickness of the outer wall of the main template 2.

[0041] In this utility model, with the cooperation of the mounting groove 10, it is convenient for the main template 2 of different lengths to be plugged in and installed, which helps the main template 2 to be disassembled and replaced.

[0042] Furthermore, a symmetrical fixing block 12 is provided on the lower surface of the positioning frame plate 1 near the right end. One of the fixing blocks 12 has a threaded groove 120 on its outer wall. A first fastening bolt 121 is provided in the threaded groove 120. The first fastening bolt 121 passes through the threaded groove 120 and its end is closely fitted to the outer wall of the main template 2.

[0043] In this utility model, the fixing block 12 with the first fastening bolt 121 is manually rotated. The first fastening bolt 121 is threadedly connected to the threaded groove 120. The main template 2 is inserted into the mounting groove 10, and the right end of the main template 2 is close to the right end of the mounting groove 10. The fixing block 12 clamps the main template 2 and, under the friction of the first fastening bolt 121, the right side position of the main template 2 is fixed.

[0044] Specifically, the main template 2 has a model guide groove 20 at the bottom, and the positioning frame plate 1 has a sliding groove 11 on its side wall. The left end of the sliding groove 11 passes through the positioning frame plate 1, and the width of the inner wall of the sliding groove 11 is adapted to the width of the outer wall of the first slider 300 and the second slider 400.

[0045] In this utility model, the first slider 300 and the second slider 400 slide from the slide groove 11 to the left side and are then taken out from the left end of the slide groove 11, so as to realize the cleaning and fitting of the sliding clamping component 3 and the movable positioning component 4 from the positioning frame plate 1.

[0046] Secondly, the right end of the slide groove 11 is provided with a movable positioning member 4 for engagement, and the left end of the slide groove 11 is provided with a sliding clamping assembly 3 for fixing to the main template 2.

[0047] It should be noted that the movable positioning component 4 includes a clamping plate 40 and an adjustable limiting plate 41 on the clamping plate 40. A second slider 400 is provided at the middle of the side end of the clamping plate 40. A second screw hole 401 is provided at the top of the clamping plate 40. A third fastening bolt 402 is provided in the second screw hole 401. The clamping plate 40 is U-shaped. The two ends of the second slider 400 are respectively bonded and fixed to the inner wall surface of the clamping plate 40. The third fastening bolt 402 passes through the second screw hole 401, and the end of the third fastening bolt 402 is tightly fitted to the outer end of the positioning frame plate 1.

[0048] In this utility model, the clamping plate 40 is engaged with the positioning frame plate 1, and with the cooperation of the second slider 400, the clamping plate 40 can move horizontally on the positioning frame plate 1. The third fastening bolt 402 is threadedly connected to the second screw hole 401, and its end is close to the positioning frame plate 1 and is fixed on the position of the clamping plate 40 on the positioning frame plate 1 under the action of friction.

[0049] Furthermore, the top of the card plate 40 is symmetrically provided with limiting grooves 403, and the limiting plate 41 is inserted into the corresponding limiting groove 403. The two side walls of the card plate 40 are provided with second positioning holes 404, and the second positioning holes 404 are provided with second positioning bolts 405. The two limiting plates 41 are both elongated, and the width of the outer wall of the limiting plate 41 is adapted to the width of the inner wall of the limiting groove 403. The bottom of the limiting plate 41 is provided with a biting block 410. The second positioning bolt 405 passes through the second positioning hole 404, and the end of the second positioning bolt 405 is closely fitted to the outer wall of the limiting plate 41.

[0050] In this invention, a limiting plate 41 with an occlusal block 410 is inserted into a limiting groove 403. The limiting plate 41 slides on the clamping plate 40. The second positioning bolt 405 is threadedly connected to the second positioning hole 404. Under the action of friction, the position of the limiting plate 41 after adjustment is fixed, so that the occlusal block 410 extends into the patient's oral cavity and the corresponding depth is adjusted. This facilitates the occlusal fixation of different patients with the corresponding positioning frame plate 1. The two limiting plates 41 can be adjusted independently to fit and position different tooth occlusion positions. The top arc of the occlusal block 410 fits close to the upper surface of the patient's upper teeth. The top of the upper teeth supports the arc position of the occlusal block 410, thus lifting the limiting plate 41.

[0051] It is worth adding that the sliding clamping assembly 3 includes a clamping plate 30 and a second fastening bolt 31 on the top of the clamping plate 30 for position fixing. A first slider 300 is provided at the middle of the side end of the clamping plate 30. A first screw hole 301 is provided on the top of the clamping plate 30. The second fastening bolt 31 is threadedly connected in the first screw hole 301. A first positioning hole 302 is provided on both sides of the clamping plate 30. A first positioning bolt 303 is provided in the first positioning hole 302.

[0052] Furthermore, the clamping plate 30 is U-shaped, and the two ends of the first slider 300 are respectively bonded and fixed to the inner wall surface of the clamping plate 30. The second fastening bolt 31 passes through the first screw hole 301 and its end is tightly fitted with the outer end face of the positioning frame plate 1. The end of the first positioning bolt 303 passes through the first positioning hole 302 and its end is tightly fitted and close to the outer wall of the main template 2.

[0053] In this utility model, the clamping plate 30 moves horizontally on the positioning frame plate 1 with the cooperation of the first slider 300. The second fastening bolt 31 is threadedly connected to the first screw hole 301, and the end of the clamping plate 30 is fixed on the positioning frame plate 1 under the action of friction, so that the bottom of the clamping plate 30 is correspondingly fitted and clamped to the main template 2 of different lengths. The first positioning bolt 303 is threadedly connected to the first positioning hole 302, and the end of the first positioning bolt 303 contacts the main template 2 and is fixed on the position of the main template 2 under the action of friction, so as to realize the combination and fixation of the main template 2 and the positioning frame plate 1.

[0054] In addition, a sealing block 13 is provided on the left end of the positioning frame plate 1. A through hole 130 is symmetrically opened on the sealing block 13. A limit bolt 131 is provided in each through hole 130. A limit screw hole 14 is opened on the left end of the positioning frame plate 1 at the position corresponding to the through hole 130.

[0055] In this utility model, the sealing block 13 is threadedly connected to the corresponding limiting screw hole 14 through the through hole 130 by the limiting bolt 131, and the right end face of the limiting bolt 131 is tightly fitted with the left end face of the sealing block 13, so that the sealing block 13 seals the left end of the slide groove 11, increasing the overall structural stability of the positioning frame plate 1. The limiting bolt 131 can be disassembled and removed to separate the sealing block 13 from the positioning frame plate 1, making it convenient for the sliding clamping component 3 and the movable positioning component 4 in the middle to be taken out and fitted respectively.

[0056] When surgical navigation is required, the main template 2 with model guide groove 20 generates a prosthesis model through the interaction designed by the patient before surgery by model modeling and Boolean operation. The main template 2 is made of medical resin to reduce the impact of allergies when in contact with the patient's facial skin. The main template 2 is matched with the patient and after the prosthesis model is generated, the main template 2 is combined and installed with the corresponding positioning frame plate 1 for easy handling and use.

[0057] When using the surgical navigation template of this embodiment, firstly, the top of the main template 2 with the model guide groove 20 is inserted into the mounting groove 10 at the bottom of the positioning frame plate 1, and the right end of the top of the main template 2 is tightly fitted with the right end of the mounting groove 10. Rotate the first fastening bolt 121 on the fixing block 12, and the end of the first fastening bolt 121 is fixed to the right side of the main template 2 under the action of friction. Then, the clamping plate 40 is inserted into the slide groove 11 through the second slider 400, and the limiting plate 41 with the biting block 410 passes through the corresponding limiting groove 403 in sequence. Then, the clamping plate 30 is inserted into the slide groove 11 through the first slider 300. Then, the sealing block 13 is threaded through the through hole 130 and the corresponding limiting screw hole 14 through the limiting bolt 131. The sealing block 13 is tightly fitted with the positioning frame plate 1, and the left end of the slide groove 11 is sealed.

[0058] Depending on the length of the main template 2 in the mounting slot 10, the clamp 30 is slid horizontally on the positioning frame plate 1, so that the bottom of the clamp 30 is clamped to the left side of the main template 2, and the top of the second fastening bolt 31 is tightened, with the bottom of the second fastening bolt 31 abutting against the top of the positioning frame plate 1. Under the action of friction, the position of the clamp 30 is fixed. Then, according to the different oral positions of the patients, the position of the card plate 40 is slid, so that the occlusal block 410 extends to the oral cavity and corresponds to the patient's upper and lower teeth, making it convenient for the upper and lower teeth to bite the occlusal block 410. The top arc of the 10 is close to the upper surface of the patient's upper teeth. The top of the upper teeth supports the arc position of the biting block 410, realizing the lifting and engagement of the limiting plate 41. The top of the second positioning bolt 405 rotates and fixes the position of the limiting plate 41 under the action of friction. Then, the top of the third fastening bolt 402 rotates and fixes the position of the clamping plate 40 on the positioning frame plate 1 under the action of friction. The biting block 410 is bitten in turn, so that the positioning frame plate 1 with the main template 2 is vertically in the middle of the patient's panel, which facilitates the corresponding preoperative navigation and positioning.

[0059] Among them, the limiting bolt 131 is disassembled and removed, the sealing block 13 is separated from the positioning frame plate 1, and the left end of the slide groove 11 is connected to the external space, so that the clamping plate 30 and the card plate 40 can slide to the left end of the slide groove 11 and be taken out, thereby realizing the disassembly and removal of the sliding clamping component 3 and the movable positioning component 4 for separate cleaning and disinfection.

Claims

1. A surgical navigation template, comprising a positioning frame plate and a detachable main template that is inserted into the bottom of the positioning frame plate, characterized in that: The bottom of the main template is provided with a model guide groove, the side wall of the positioning frame plate is provided with a sliding groove, the right end of the sliding groove is provided with a movable positioning component for engagement, and the left end of the sliding groove is provided with a sliding clamping component for fixing to the main template. The movable positioning component includes a card plate and an adjustable limiting plate on the card plate. A second slider is provided at the middle of the side end of the card plate. A second screw hole is provided on the top of the card plate. A third fastening bolt is provided in the second screw hole. Limiting grooves are symmetrically provided on the top of the card plate. The limiting plate is inserted into the corresponding limiting groove. A second positioning hole is provided on both side walls of the card plate. A second positioning bolt is provided in each of the second positioning holes. The sliding clamping assembly includes a clamping plate and a second fastening bolt on the top of the clamping plate for position fixation. A first slider is provided at the middle of the side end of the clamping plate. A first screw hole is provided on the top of the clamping plate, and a second fastening bolt is threaded into the first screw hole. A first positioning hole is provided on both sides of the clamping plate, and a first positioning bolt is provided in the first positioning hole.

2. The surgical navigation template according to claim 1, characterized in that: The bottom of the positioning frame plate is provided with an installation groove, and the width of the inner wall of the installation groove is adapted to the thickness of the outer wall of the main template.

3. The surgical navigation template according to claim 1, characterized in that: The lower surface of the positioning frame plate is provided with symmetrical fixing blocks near the right end. One of the fixing blocks has a threaded groove on its outer wall. A first fastening bolt is provided in the threaded groove. The first fastening bolt passes through the threaded groove and its end is closely fitted to the outer wall of the main template.

4. The surgical navigation template according to claim 1, characterized in that: The left end of the slide groove passes through the positioning frame plate, and the width of the inner wall of the slide groove is adapted to the width of the outer walls of the first slider and the second slider.

5. The surgical navigation template according to claim 1, characterized in that: The card plate is U-shaped, and the two ends of the second slider are respectively bonded and fixed to the inner wall of the card plate. The third fastening bolt passes through the second screw hole, and the end of the third fastening bolt is tightly fitted to the outer end of the positioning frame plate.

6. The surgical navigation template according to claim 5, characterized in that: Both of the limiting plates are elongated strips, and the width of the outer wall of the limiting plate is adapted to the width of the inner wall of the limiting groove. Each limiting plate has an engagement block at its bottom. The second positioning bolt passes through the second positioning hole, and the end of the second positioning bolt is closely fitted to the outer wall of the limiting plate.

7. The surgical navigation template according to claim 1, characterized in that: The clamping plate is U-shaped. The two ends of the first slider are respectively bonded and fixed to the inner wall of the clamping plate. The second fastening bolt passes through the first screw hole and its end is tightly fitted to the outer end face of the positioning frame plate. The end of the first positioning bolt passes through the first positioning hole and its end is tightly fitted and close to the outer wall of the main template.

8. The surgical navigation template according to claim 1, characterized in that: Each positioning frame plate has a sealing block on its left end. The sealing block has symmetrical through holes, and each through hole has a limiting bolt. Each positioning frame plate has a limiting screw hole at the position corresponding to the through hole on its left end.

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