Skull plate fixing device for brain surgery

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Through the combined design of the brain limit frame and protective pad plate with a U-shaped frame structure, the problem of poor adaptability of the fixing device in the prior art is solved, the stable fixation of the skull plate is achieved, and the safety and accuracy of the surgery are improved.

CN223126663UActive Publication Date: 2025-07-22SHANGHAI BEERKANG BIOMEDICAL TECH CO LTD

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Patent Information

Application Number: CN202422041257.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-08-22
Publication Date: 2025-07-22
Estimated Expiration: 2034-08-22

AI Technical Summary

Technical Problem

In the prior art, the metal-shaped annular structure fixing device is difficult to adapt to the heads of different patients, resulting in poor stability of the skull plate during the operation, easy to displace and fall off, affecting the accuracy and safety of the surgery.

Method used

The brain limit frame with a U-shaped frame structure is combined with the main positioning frame, auxiliary positioning frame and protective pad plate. Through the coordination of the limiting rod and protective silicone strip, stable fixation of the patient's head is achieved and displacement is avoided.

Benefits of technology

It improves the stability of the skull plate during the operation, reduces the risk of dislocation and shedding of the patient's head, and enhances the safety and accuracy of the operation.

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Abstract

The utility model discloses a skull plate fixing device for brain surgery, which comprises a brain limit frame, the brain limit frame is of a U-shaped frame structure, a main positioning frame is mounted at the upper end of the brain limit frame, lifting support frames are symmetrically mounted on two sides of the brain limit frame, and a protective base plate is arranged at the upper end of the main positioning frame. According to the skull plate fixing device for the brain surgery, the head of a patient is kept placed through C-shaped openings among the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame are pushed to be in the opposite directions, and the opening positions among the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame are staggered; the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame wrap the head of a patient and are matched with the first protection silica gel strip and the second protection silica gel strip to collect the interior, the head of the patient is conveniently limited, and the head limiting installation of patients with different head circumferences is facilitated.

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Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a skull plate fixing device for brain surgery. Background Technique

[0002] The human skull is composed of 23 bones, which can support and protect important organs such as the brain. Except for the mandible and hyoid bone, each bone is connected by sutures or cartilage, belonging to immovable joints. Among all body part injuries, craniocerebral injury ranks second only to limb injuries. With the progress of medical science, craniotomy has been vigorously carried out in grass-roots hospitals. Since the brain nerves and blood vessels contacted during brain surgery are relatively important, a corresponding fixator is required to be able to fix the surgical area, reduce movement and vibration during the operation, and improve the accuracy and safety of the operation.

[0003] Existing fixing devices for the patient's head during the operation use a ring structure made of metal to be fixed on both sides of the patient's head for limiting. Its overall structure is relatively fixed, making it difficult to cooperate with the heads of different patients for limiting, affecting the stability of the skull plate during the operation, and the fixed frame with a constant size structure is prone to displacement and falling off during the patient's use, affecting the patient's physical condition. Content of the Utility Model

[0004] The purpose of the utility model is to provide a skull plate fixing device for brain surgery, so as to solve the problem put forward in the above background technique that a ring structure made of metal is fixed on both sides of the patient's head for limiting. Its overall structure is relatively fixed, making it difficult to cooperate with the heads of different patients for limiting, affecting the stability of the skull plate during the operation, and the fixed frame with a constant size structure is prone to displacement and falling off during the patient's use, affecting the patient's physical condition.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A skull plate fixing device for brain surgery, including a brain limiting frame, which is set as a U-shaped frame structure, and a main positioning frame is installed at the upper end of the brain limiting frame, and lifting support frames are symmetrically installed on both sides of the brain limiting frame. A protective cushion plate is arranged at the upper end of the main positioning frame. During brain surgery, the position of the patient's head is restricted through the cooperation of the main positioning frame and the protective cushion plate, and the stability of the patient's skull during the operation is maintained;

[0006] On one side of the main positioning frame, a first limiting rod is equidistantly arranged, and the other end of the first limiting rod is slidably connected to a side wall surface of the auxiliary positioning frame. A slide rail is arranged on the side of the auxiliary positioning frame where it is slidably connected to the first limiting rod. On the other side of the main positioning frame, a second limiting rod is equidistantly arranged, and the second limiting rod is symmetrically arranged with the first limiting rod. One end of the second limiting rod is slidably connected to a side wall surface of the second auxiliary positioning frame, and a slide rail for slidably connecting with the second limiting rod is arranged on the side wall surface of the second auxiliary positioning frame. Auxiliary positioning components are arranged on the surfaces of the first auxiliary positioning frame and the second auxiliary positioning frame, and are used to assist in fixing the skull position of the patient placed on the protective cushion plate at the upper end of the main positioning frame;

[0007] A head limiting frame is arranged on one side of the second auxiliary positioning frame. A guiding rod is arranged at the bottom end of the head limiting frame, and one end of the guiding rod is slidably connected to one side at the bottom end of the brain limiting frame. A skull auxiliary pushing plate is snap - connected inside the head limiting frame.

[0008] Adopting the above - mentioned technical solution, it is convenient for the device to limit and install the skull position of the patient, effectively avoiding the displacement of the patient's skull during the operation.

[0009] Preferably, the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame are all arranged in a C - shaped frame structure, and the first auxiliary positioning frame and the second auxiliary positioning frame are symmetrically arranged.

[0010] Adopting the above - mentioned technical solution, the position of the opening is adjusted among the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame to fix the patient's head.

[0011] Preferably, the protective cushion plate is arranged in a U - shaped frame structure, and holes are symmetrically arranged on both sides of the protective cushion plate. The holes on both sides of the protective cushion plate are respectively snap - connected with the first limiting rod and the second limiting rod.

[0012] Adopting the above - mentioned technical solution, the position of the patient's head is assisted to be raised by the protective cushion plate.

[0013] Preferably, the auxiliary positioning components include:

[0014] A first protective silica gel strip, which is symmetrically installed on the surface of the first auxiliary positioning frame;

[0015] A first connecting rod, which is installed on the bottom surface of the first protective silica gel strip;

[0016] A second protective silica gel strip, which is symmetrically installed on the surface of the second auxiliary positioning frame;

[0017] A second connecting rod, which is installed on the surface of the second protective silica gel strip.

[0018] Adopting the above - mentioned technical solution, the auxiliary positioning components are used to assist in positioning and fixing the position of the patient's head.

[0019] Preferably, the first connecting rod penetrates through the inside of the first auxiliary positioning frame, and the first auxiliary positioning frame is installed perpendicular to the first limiting rod, and the first limiting rod and the second limiting rod are symmetrically installed on both sides of the main positioning frame.

[0020] With the above technical solution, as the first limiting rod and the second limiting rod are used in cooperation, the position of the patient's head is restricted.

[0021] Preferably, the second connecting rod penetrates through the second auxiliary positioning frame, and the second auxiliary positioning frame is perpendicularly installed to the second limiting rod, and the length of the second limiting rod is greater than the length of the first limiting rod.

[0022] With the above technical solution, the processing environment is adjusted through the sliding connection between the second connecting rod and the second auxiliary positioning frame.

[0023] Preferably, the top end of the head limiting frame is provided with an open structure, and holes for snap-fitting connection with the skull auxiliary push plate are symmetrically arranged on the surface of the head limiting frame.

[0024] With the above technical solution, through the upper opening of the head limiting frame, it is convenient to clearly observe the position of the skull plate.

[0025] Compared with the prior art, the beneficial effects of the present invention are: the skull plate fixing device for brain surgery:

[0026] 1. When in use, the C-shaped opening between the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame is used to hold the patient's head. By pushing the first auxiliary positioning frame and the second auxiliary positioning frame in opposite directions, the opening positions between the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame are staggered, so that the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame wrap around the patient's head, and cooperate with the first protective silica gel strip and the second protective silica gel strip to constrict the inside, which is convenient for limiting the patient's head and is convenient for limiting and installing the head of patients with different head circumferences.

[0027] 2. The guide rod installed at the bottom end of the limiting frame cooperates with the head limiting frame to displace to one side. Through the installation between the holes arranged inside the head limiting frame and the skull auxiliary push plate, the skull auxiliary push plate is used to simulate and adjust the position of the patient's cranial bone, which is convenient for the skull auxiliary push plate to confirm the position of the patient's skull and provides assistance for fixing the skull position after the operation. Through pushing, it is convenient to fix the position of the skull. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic external three-dimensional structure diagram of the whole of the present invention;

[0029] Figure 2 is a schematic internal side-sectional three-dimensional structure diagram of the whole of the present invention;

[0030] Figure 3Schematic three-dimensional structure diagram of the installation of the limit frame and the main positioning frame of the present utility model;

[0031] Figure 4 Schematic three-dimensional structure diagram of the installation of the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame of the present utility model;

[0032] Figure 5 Schematic three-dimensional structure diagram of the usage state of the main positioning frame, the first auxiliary positioning frame and the second auxiliary positioning frame of the present utility model;

[0033] Figure 6 Schematic three-dimensional structure diagram of the installation of the head limit frame and the skull auxiliary push plate of the present utility model.

[0034] In the figure: 1. Brain limit frame; 2. Lifting support frame; 3. Main positioning frame; 4. Protective cushion plate; 5. First limit rod; 6. First auxiliary positioning frame; 7. First protective silicone strip; 8. First connecting rod; 9. Second limit rod; 10. Second auxiliary positioning frame; 11. Second protective silicone strip; 12. Second connecting rod; 13. Guide rod; 14. Head limit frame; 15. Skull auxiliary push plate. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] Please refer to Figures 1-6 , the present utility model provides a technical solution: a skull plate fixing device for brain surgery, including a brain limit frame 1, a lifting support frame 2, a main positioning frame 3, a protective cushion plate 4, a first limit rod 5, a first auxiliary positioning frame 6, a first protective silicone strip 7, a first connecting rod 8, a second limit rod 9, a second auxiliary positioning frame 10, a second protective silicone strip 11, a second connecting rod 12, a guide rod 13, a head limit frame 14 and a skull auxiliary push plate 15;

[0037] Among them, the brain limit frame 1 is set as a U-shaped frame structure, and the main positioning frame 3 is installed at the upper end of the brain limit frame 1. And the lifting support frames 2 are symmetrically installed on both sides of the brain limit frame 1. The protective cushion plate 4 is arranged at the upper end of the main positioning frame 3. During brain surgery, the position of the patient's head is restricted through the cooperation of the main positioning frame 3 and the protective cushion plate 4 to maintain the stability of the patient's skull during the operation. The protective cushion plate 4 is set as a U-shaped frame structure, and holes are symmetrically arranged on both sides of the protective cushion plate 4. And the holes on both sides of the protective cushion plate 4 are respectively snap-connected with the first limit rod 5 and the second limit rod 9;

[0038] On one side of the main positioning frame 3, a first limiting rod 5 is equidistantly arranged, and the other end of the first limiting rod 5 is slidably connected to the side wall surface of the first auxiliary positioning frame 6. A slide rail is arranged on the side of the first auxiliary positioning frame 6 where it is slidably connected to the first limiting rod 5. On the other side of the main positioning frame 3, a second limiting rod 9 is equidistantly arranged, and the second limiting rod 9 is symmetrically arranged with the first limiting rod 5. One end of the second limiting rod 9 is slidably connected to the side wall surface of the second auxiliary positioning frame 10, and a slide rail for slidably connecting with the second limiting rod 9 is arranged on the side wall surface of the second auxiliary positioning frame 10. An auxiliary positioning component is arranged on the surfaces of the first auxiliary positioning frame 6 and the second auxiliary positioning frame 10, which is used to assist in fixing the cranial position of the patient placed on the protective cushion plate 4 at the upper end of the main positioning frame 3. The main positioning frame 3, the first auxiliary positioning frame 6, and the second auxiliary positioning frame 10 are all arranged as C-shaped frame structures, and the first auxiliary positioning frame 6 and the second auxiliary positioning frame 10 are symmetrically arranged;

[0039] The head limiting frame 14 is arranged on one side of the second auxiliary positioning frame 10. A guide rod 13 is arranged at the bottom end of the head limiting frame 14, and one end of the guide rod 13 is slidably connected to one side at the bottom end of the brain limiting frame 1. A cranial auxiliary push plate 15 is snap-fitted inside the head limiting frame 14. The top end of the head limiting frame 14 is arranged as an open structure, and holes for snap-fitting with the cranial auxiliary push plate 15 are symmetrically arranged on the surface of the head limiting frame 14;

[0040] Combined with the Figures 1-6 shown in the attached drawings of the specification, during use, the height of the main positioning frame 3 at the upper end of the brain limiting frame 1 is adjusted through the lifting support frames 2 symmetrically arranged on both sides of the brain limiting frame 1. Among them, the protective cushion plate 4 arranged on the surface of the main positioning frame 3 is further installed with limits, and the protective cushion plate 4 is used for padding the headrest position of the patient. Among them, the first auxiliary positioning frame 6 and the second auxiliary positioning frame 10 are symmetrically installed on both sides of the main positioning frame 3, which is convenient for supporting the patient's head. The first limiting rod 5 and the second limiting rod 9 symmetrically arranged on both sides of the main positioning frame 3 are as Figures 1-3 shown. Among them, the rod bodies at the top ends of the first limiting rod 5 and the second limiting rod 9 are arranged in a staggered manner. The opening position of the first auxiliary positioning frame 6 is adjusted by the sliding connection between the first limiting rod 5 and the first auxiliary positioning frame 6, and the opening position of the second auxiliary positioning frame 10 is adjusted by the sliding connection between the second limiting rod 9 and the second auxiliary positioning frame 10, effectively restricting the position of the patient's head. As Figure 5 shown, it is convenient to restrict the patient's head to remain stable. The sliding guide rod 13 arranged at the bottom end of the brain limiting frame 1 is installed with the head limiting frame 14. As Figures 1-2As shown, the head limiting frame 14 and the guide rod 13 are in an L-shaped structure. The head limiting frame 14 is set as a hemispherical structure, conforming to the arc of the patient's head. The hole provided inside the head limiting frame 14 is for adjusting the position of the skull auxiliary push plate 15. The skull auxiliary push plate 15 is a T-shaped rod structure, used to determine the head position of the patient's skull, and is used to assist in the positioning and installation of the skull after the operation. The opening above the head limiting frame 14 observes the skull position, and the guide rod 13 cooperates with the brain limiting frame 1 to push the skull into the patient's brain position;

[0041] The auxiliary positioning assembly includes:

[0042] The first protective silicone strip 7, which is symmetrically installed on the surface of the first auxiliary positioning frame 6;

[0043] The first connecting rod 8, which is installed on the bottom surface of the first protective silicone strip 7. The first connecting rod 8 penetrates through the inside of the first auxiliary positioning frame 6, and the first auxiliary positioning frame 6 is installed perpendicular to the first limiting rod 5. And the first limiting rod 5 and the second limiting rod 9 are symmetrically and rigidly installed on both sides of the main positioning frame 3;

[0044] The second protective silicone strip 11, which is symmetrically installed on the surface of the second auxiliary positioning frame 10;

[0045] The second connecting rod 12, which is installed on the surface of the second protective silicone strip 11. The second connecting rod 12 penetrates through the second auxiliary positioning frame 10, and the second auxiliary positioning frame 10 is installed perpendicular to the second limiting rod 9. The length of the second limiting rod 9 is greater than the length of the first limiting rod 5;

[0046] Combined with the attached drawings of the specification Figures 1-6 As shown, the cooperation between the first protective silicone strip 7 and the first connecting rod 8 enables the first connecting rod 8 to penetrate through the inside of the first auxiliary positioning frame 6. As Figures 1-4 shown, the first auxiliary positioning frame 6 fits the patient's head position under the restriction of the first protective silicone strip 7. The second protective silicone strip 11 moves inside the second auxiliary positioning frame 10 through the second connecting rod 12 to restrict the patient's head position. The thicknesses of the first protective silicone strip 7 and the second protective silicone strip 11 are adjusted according to the surgical needs. Seals are provided at the joints of the second connecting rod 12 and the first connecting rod 8 with the first auxiliary positioning frame 6 and the second auxiliary positioning frame 10 to maintain a tight installation, and are used to cooperate with the first protective silicone strip 7 and the second protective silicone strip 11 to restrict the patient's brain, facilitating the fixed installation of the skull plate.

[0047] Working principle: When using the skull plate fixing device for brain surgery, the main positioning frame 3, the auxiliary positioning frame 16 and the auxiliary positioning frame 2 10 are kept in a parallel state with the opening facing upward, and the patient's head is placed on the surface of the protective pad 4. By respectively moving the auxiliary positioning frame 16 and the auxiliary positioning frame 2 10 to move in opposite directions, the limiting rod 15 guides the position of one side of the auxiliary positioning frame 6. As the connecting rod 18 is pushed, it cooperates with the protective silicone strip 17 to limit the position of the patient's head. The protective silicone strip 2 11 symmetrically arranged on the surface of the auxiliary positioning frame 2 10 is pushed by the connecting rod 2 12 to further limit the position of the patient's head, so as to avoid displacement of the patient's head during brain surgery. The skull auxiliary push plate 15 inside the head limiting frame 14 is cooperated to keep the position of the patient's skull limited, which is convenient for the stability of the auxiliary surgery and increases the overall practicality.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A skull plate fixing device for brain surgery, comprising: A brain limiting frame (1), which is arranged in a U-shaped frame structure, and a main positioning frame (3) is installed at the upper end of the brain limiting frame (1), and lifting support frames (2) are symmetrically installed on both sides of the brain limiting frame (1). A protective cushion plate (4) is arranged at the upper end of the main positioning frame (3). During brain surgery, the position of the patient's head is restricted by the cooperation of the main positioning frame (3) and the protective cushion plate (4) to maintain the stability of the patient's skull during the operation; It is characterized in that: A first limiting rod (5) is equidistantly arranged on one side of the main positioning frame (3), and the other end of the first limiting rod (5) is slidably connected to the side wall surface of the first auxiliary positioning frame (6), and a slide rail is arranged on the side of the first auxiliary positioning frame (6) where it is slidably connected to the first limiting rod (5). A second limiting rod (9) is equidistantly arranged on the other side of the main positioning frame (3), and the second limiting rod (9) is symmetrically arranged with the first limiting rod (5). One end of the second limiting rod (9) is slidably connected to the side wall surface of the second auxiliary positioning frame (10), and a slide rail for slidably connecting with the second limiting rod (9) is arranged on the side wall surface of the second auxiliary positioning frame (10). And auxiliary positioning components are arranged on the surfaces of the first auxiliary positioning frame (6) and the second auxiliary positioning frame (10) for auxiliary fixing of the skull position of the patient placed on the protective cushion plate (4) at the upper end of the main positioning frame (3); A head limiting frame (14) is arranged on one side of the second auxiliary positioning frame (10). A guide rod (13) is arranged at the bottom end of the head limiting frame (14), and one end of the guide rod (13) is slidably connected to one side of the bottom end of the brain limiting frame (1). A skull auxiliary pushing plate (15) is snap-fitted inside the head limiting frame (14).

2. The skull plate fixing device for brain surgery according to claim 1, wherein: The main positioning frame (3), the first auxiliary positioning frame (6) and the second auxiliary positioning frame (10) are all arranged in a C-shaped frame structure, and the first auxiliary positioning frame (6) and the second auxiliary positioning frame (10) are symmetrically arranged.

3. A skull plate fixing device for brain surgery according to claim 1, characterized in that: The protective cushion plate (4) is arranged in a U-shaped frame structure, and holes are symmetrically arranged on both sides of the protective cushion plate (4), and the holes on both sides of the protective cushion plate (4) are respectively snap-fitted with the first limiting rod (5) and the second limiting rod (9).

4. The cranial plate fixing device for brain surgery according to claim 1, wherein: The auxiliary positioning components include: A first protective silicone strip (7), which is symmetrically installed on the surface of the first auxiliary positioning frame (6); A first connecting rod (8), which is installed on the bottom surface of the first protective silicone strip (7); A second protective silicone strip (11), which is symmetrically installed on the surface of the second auxiliary positioning frame (10); A second connecting rod (12), which is installed on the surface of the second protective silicone strip (11).

5. The skull plate fixing device for brain surgery according to claim 4, wherein: The first connecting rod (8) penetrates through the inside of the first auxiliary positioning frame (6), and the first auxiliary positioning frame (6) is installed perpendicular to the first limiting rod (5), and the first limiting rod (5) and the second limiting rod (9) are symmetrically installed on both sides of the main positioning frame (3).

6. The skull plate fixing device for brain surgery according to claim 4, characterized in that: The second connecting rod (12) penetrates through the second auxiliary positioning frame (10), and the second auxiliary positioning frame (10) is installed perpendicular to the second limiting rod (9), and the length of the second limiting rod (9) is greater than the length of the first limiting rod (5).

7. The cranial plate fixing device for brain surgery according to claim 1, characterized in that: The top of the head limiting frame (14) is provided with an opening structure, and holes for snap-fitting connection with the cranial auxiliary push plate (15) are symmetrically arranged on the surface of the head limiting frame (14).