Head auxiliary fixation device for neurointervention treatment

Abstract

The application relates to the field of medical devices and discloses a head auxiliary fixing device for nerve interventional treatment, which comprises a bed body, an auxiliary plate is hinged to the outer wall of the bed body, an adjusting mechanism is arranged on the auxiliary plate, a fixing mechanism is arranged on the auxiliary plate, the fixing mechanism comprises a shell, a motor is fixedly connected to the inner wall of the shell, a threaded rod is fixedly connected to the output shaft of the motor, a half-ring sleeve is threadedly connected to the outer wall of the threaded rod, and a moving plate is fixedly connected to the outer wall of the half-ring sleeve. The fixing mechanism is arranged, the motor is started, four groups of arc-shaped limiting plates are simultaneously moved inwards, the arc-shaped limiting plates can be adaptively adjusted and fixed according to the head arc of a patient, the arc-shaped limiting plates which are in contact with the head of the patient are paused, and the arc-shaped limiting plates which are not in contact with the head of the patient continue to move forward, so that the auxiliary fixing effect on the head of the patient is ensured, and the fixing efficiency on the head of the patient is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a head-assisted fixation device for neurointerventional therapy. Background Technology

[0002] Neurointerventional surgery is an emerging minimally invasive clinical technique that uses interventional surgical techniques to treat neurological diseases. This treatment method is commonly used to treat symptoms such as pain, neurological disorders, and movement disorders.

[0003] Traditional neurointerventional treatment requires precise positioning and fixation to ensure the accuracy and safety of the surgical procedure. In head neurointerventional treatment, due to the special position of the head, a head fixation device is required to fix the patient's head, so as to ensure that the patient's head does not shift during the operation, thus affecting the treatment effect and efficiency.

[0004] Considering that the patient's head usually has a certain curvature during the fixation process, the existing fixation devices cannot fully fit the patient's head, affecting the fixation effect. It is also considered that some fixation devices are equipped with multiple sets of fixation rods. By setting multiple sets of fixation rods and adjusting each set of fixation rods individually, a full fit and fixation effect for the patient's head can be achieved. However, each set of fixation rods needs to be controlled and adjusted individually, which delays the efficiency and progress of the operation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a head-assisted fixation device for neurointerventional therapy. This device solves the problem that some fixation devices use multiple sets of fixation rods, and by setting multiple sets of fixation rods and adjusting each set of fixation rods individually, the effect of fully fitting and fixing the patient's head can be achieved. However, this requires individual control and adjustment of each set of fixation rods, which delays the efficiency and progress of the surgery.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a head-assisted fixation device for neurointerventional therapy, comprising a bed, an auxiliary plate hinged to the outer wall of the bed, an adjustment mechanism and a fixing mechanism on the auxiliary plate, the fixing mechanism comprising a housing, a motor fixedly connected to the inner wall of the housing, a threaded rod fixedly connected to the output shaft of the motor, a semi-circular sleeve threadedly connected to the outer wall of the threaded rod, a movable plate fixedly connected to the outer wall of the semi-circular sleeve, a guide rod slidably connected to the inner wall of the movable plate, a connecting rod hinged to the outer wall of the movable plate, an arc-shaped limiting plate hinged to the outer wall of the connecting rod, an elastic telescopic rod fixedly connected to the outer wall of the arc-shaped limiting plate, a frame fixedly connected to the outer wall of the elastic telescopic rod, a storage shell fixedly connected to the frame, a wedge slidably connected to the inner wall of the storage shell, and the outer wall of the wedge elastically connected to the inner wall of the storage shell via a spring B.

[0007] Preferably, a rubber pad is fixedly connected to the auxiliary plate, the bottom of the housing is fixedly connected to the top of the auxiliary plate, and the outer wall of the threaded rod is rotatably connected to the inner wall of the housing.

[0008] Preferably, the threaded rods are provided in four sets, and the four sets of threaded rods are connected by chain and sprocket transmission, with the inner wall of the sprocket fixedly connected to the outer wall of the threaded rod.

[0009] Preferably, the outer wall of the guide rod is fixedly connected to the inner wall of the frame, the outer wall of the arc-shaped limiting plate is fixedly connected to a sponge pad, the inner wall of the housing is provided with a sliding groove, and the bottom of the frame is slidably connected to the inner wall of the sliding groove.

[0010] Preferably, the outer wall of the wedge is fixedly connected to one end of the spring B, and the other end of the spring B is fixedly connected to the inner wall of the housing.

[0011] Preferably, a limiting groove is formed on the outer wall of the housing, and the inner wall of the limiting groove is engaged with the outer wall of the wedge.

[0012] Preferably, the adjusting mechanism includes a support rod, a concave frame is slidably connected to the outer wall of the support rod, a hinge seat is fixedly connected to the top of the concave frame, a push rod is fixedly connected to the top of the hinge seat, an L-shaped plate is fixedly connected to the outer wall of the concave frame, a plug rod is slidably connected to the outer wall of the L-shaped plate, and the outer wall of the plug rod is elastically connected to the outer wall of the L-shaped plate by a spring A.

[0013] Preferably, the outer wall of the support rod is fixedly connected to the outer wall of the bed, and the top of the push rod is hinged to the bottom of the auxiliary plate.

[0014] Preferably, the outer wall of the plug rod is fixedly connected to one end of the spring A, and the other end of the spring A is fixedly connected to the outer wall of the L-shaped plate.

[0015] Preferably, the outer wall of the support rod is provided with a slot, and the inner wall of the slot is inserted into the outer wall of the plug rod.

[0016] Working principle: The patient lies on the bed with their head placed on the auxiliary plate. The motor is started, which drives the threaded rod to rotate. During the rotation of the threaded rod, the semi-circular sleeve moves laterally. The semi-circular sleeve drives the frame to move laterally along the sliding groove opened on the inner wall of the shell. This causes the arc-shaped limiting plate to move laterally, and the outer wall of the arc-shaped limiting plate fits and fixes the patient's head, thereby achieving the effect of auxiliary fixation of the patient's head.

[0017] Four sets of arc-shaped limiting plates are installed to adapt to the curvature of the patient's head, ensuring a secure fit and fixation. As the threaded rod moves the four sets of arc-shaped limiting plates, when the outer wall of the patient's head contacts one of the plates, the first plate to contact is compressed by the pressure, causing it to move inward. This retracts the elastic telescopic rod, and simultaneously, the arc-shaped limiting plates, via the connecting rod, move two sets of movable plates outward. These movable plates move along the guide rod, causing the bottom semi-circular sleeve to open and disengage from the threaded rod. This pauses the movement of the arc-shaped limiting plate that is in contact with the patient's head, while the plate that is not in contact continues to move forward. This ensures both effective auxiliary fixation of the patient's head and improved head fixation efficiency.

[0018] After the patient's head is fixed, if the angle of the patient's head needs to be adjusted before the operation, the insertion rod can be pulled outward to release the insertion and fixing effect of the insertion rod on the slot. Then, the concave frame is moved laterally, so that the concave frame moves laterally along the outer wall of the support rod. During the lateral movement of the concave frame, the push rod pushes the auxiliary plate, so that the auxiliary plate flips along the outer wall of the bed, thereby changing the angle of the auxiliary plate and the patient's head.

[0019] This invention provides a head-assisted fixation device for neurointerventional therapy. It has the following beneficial effects:

[0020] 1. This invention features a fixing mechanism that allows four sets of arc-shaped limiting plates to move inward simultaneously when a motor is started. The mechanism can adaptively adjust and fix the plates according to the curvature of the patient's head, causing the arc-shaped limiting plates that are in contact with the patient's head to pause their movement while the arc-shaped limiting plates that are not in contact with the patient's head continue to move forward. This ensures both the effectiveness of the auxiliary fixation of the patient's head and improves the efficiency of the fixation.

[0021] 2. By setting four sets of arc-shaped limiting plates, this invention avoids the situation where the patient's head cannot maintain a sufficient fit with the fixation mechanism during the fixation process due to the curvature of the head, thus further improving the fixation effect of the fixation mechanism.

[0022] 3. The present invention has an adjustment mechanism that allows the angle of the auxiliary plate to be adjusted appropriately by moving the concave frame after the patient's head is fixed, thereby facilitating the staff to adjust the appropriate support angle for surgical work. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a side view of the structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the housing of the present invention;

[0026] Figure 4 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the frame structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the semi-ring sleeve structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the wedge block and spring B structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the support rod structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the cross-sectional structure of the concave frame of the present invention.

[0032] The components are as follows: 1. Bed frame; 2. Auxiliary plate; 3. Rubber pad; 4. Fixing mechanism; 401. Shell; 402. Motor; 403. Threaded rod; 404. Chain; 405. Sprocket; 406. Slide groove; 407. Frame; 408. Elastic telescopic rod; 409. Arc-shaped limiting plate; 410. Connecting rod; 411. Moving plate; 412. Guide rod; 413. Semi-ring sleeve; 414. Storage shell; 415. Spring B; 416. Wedge block; 417. Limiting groove; 5. Adjustment mechanism; 501. Support rod; 502. Concave frame; 503. Hinge seat; 504. L-shaped plate; 505. Insertion rod; 506. Spring A; 507. Slot; 508. Push rod. Detailed Implementation

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example:

[0035] Please see the appendix Figure 1 Appendix Figure 9 This invention provides a head-supporting fixation device for neurointerventional therapy, including a bed 1. An auxiliary plate 2 is hinged to the outer wall of the bed 1, providing support for the patient's head at its top. The auxiliary plate 2 can be rotated along the outer wall of the bed 1 to change its support angle. An adjustment mechanism 5 is provided on the auxiliary plate 2, including a support rod 501. The outer wall of the support rod 501 is fixedly connected to the outer wall of the bed 1, providing support and fixation for the support rod 501. A concave frame 502 is slidably connected to the wall, allowing the inner wall of the concave frame 502 to move laterally along the outer wall of the support rod 501. A hinge seat 503 is fixedly connected to the top of the concave frame 502, causing the hinge seat 503 to move laterally simultaneously during the lateral movement of the concave frame 502. A push rod 508 is fixedly connected to the top of the hinge seat 503, causing the auxiliary plate 2 to rotate along the outer wall of the bed 1 during the lateral movement of the hinge seat 503, thereby changing the angle of the auxiliary plate 2. The top of the push rod 508 is connected to the auxiliary plate 2. The bottom is hinged, and an L-shaped plate 504 is fixedly connected to the outer wall of the concave frame 502, so that the concave frame 502 provides support and fixation for the L-shaped plate 504. A plug rod 505 is slidably connected to the outer wall of the L-shaped plate 504, keeping the plug rod 505 moving laterally along the outer wall of the L-shaped plate 504 and ensuring the stability of the plug rod 505 during movement. The outer wall of the plug rod 505 is fixedly connected to one end of the spring A506, and the other end of the spring A506 is fixedly connected to the outer wall of the L-shaped plate 504. The force of the spring A506 drives the plug rod 505. The rod moves inward to maintain the locking effect between the plug rod 505 and the slot 507 without being affected by external forces, thus improving the stability after adjusting the position of the concave frame 502. The outer wall of the support rod 501 is provided with a slot 507, and multiple sets of slots 507 are provided. The multiple sets of slots 507 correspond to different fixing angles of the auxiliary plate 2, improving the adaptability of the angle adjustment of the auxiliary plate 2. The inner wall of the slot 507 is inserted into the outer wall of the plug rod 505 to achieve the effect of fixing the lateral position of the concave frame 502, ensuring that the angle of the auxiliary plate 2 is fixed after adjustment.

[0036] A rubber pad 3 is fixedly connected to the auxiliary plate 2. By setting the rubber pad 3 on the auxiliary plate 2, the comfort of the patient during the head fixation process is improved. A fixing mechanism 4 is set on the auxiliary plate 2. The fixing mechanism 4 includes a housing 401. The bottom of the housing 401 is fixedly connected to the top of the auxiliary plate 2, so that the auxiliary plate 2 provides a support and fixation effect for the housing 401. A motor 402 is fixedly connected to the inner wall of the housing 401, so that the housing 401 provides a support and fixation effect for the motor 402. By controlling the motor 402 to start or stop, the rotation control of the threaded rod 403 is achieved. The output shaft of the motor 402 is fixedly connected to the threaded rod 403, so that the motor 402 drives the threaded rod 403 to rotate. The outer wall of the threaded rod 403 is rotatably connected to the inner wall of the housing 401, so that the housing 401 provides a support effect for the threaded rod 403 and ensures the stability of the threaded rod 403 during the rotation process.

[0037] Four sets of threaded rods 403 are provided. The four sets of threaded rods 403 are connected by a chain 404 and a sprocket 405. The inner wall of the sprocket 405 is fixedly connected to the outer wall of the threaded rod 403. When one set of threaded rods 403 rotates, it drives the other three sets of threaded rods 403 to rotate simultaneously, so as to simultaneously drive the four sets of arc-shaped limiting plates 409 to move and fix. The outer wall of the threaded rod 403 is threadedly connected to a semi-ring sleeve 413, and there are two sets of semi-ring sleeves 413. When the threaded rod 403 rotates, it drives the semi-ring sleeve 413 to move laterally. The outer wall of the semi-ring sleeve 413 is fixedly connected to a moving plate 411, so that the semi-ring sleeve 413 drives the moving plate 411 to move laterally at the same time. The inner wall of the moving plate 411 is slidably connected to a guide rod 412, which maintains the stability of the moving plate 411 during vertical movement.

[0038] A connecting rod 410 is hinged to the outer wall of the movable plate 411, and an arc-shaped limiting plate 409 is hinged to the outer wall of the connecting rod 410. When the arc-shaped limiting plate 409 is subjected to a compressive force and moves laterally, the connecting rod 410 drives the movable plate 411 to move vertically. This causes the two sets of movable plates 411 to simultaneously move the two sets of semi-annular sleeves 413 outwards, separating the inner walls of the two sets of semi-annular sleeves 413 from the outer wall of the threaded rod 403, thus releasing the threaded connection. A sponge pad is fixedly connected to the outer wall of the arc-shaped limiting plate 409 to reduce the force exerted directly on the patient's face by the arc-shaped limiting plate 409. An elastic material is also fixedly connected to the outer wall of the arc-shaped limiting plate 409. The telescopic rod 408 has a frame 407 fixedly connected to its outer wall. The telescopic rod 408 uses a limiting technology and has a spring assembly on its inner wall to achieve an outward reset effect. The outer wall of the guide rod 412 is fixedly connected to the inner wall of the frame 407, so that the frame 407 provides support and fixation for the guide rod 412. The inner wall of the housing 401 has a sliding groove 406, and the bottom of the frame 407 is slidably connected to the inner wall of the sliding groove 406 to maintain the stability of the frame 407 during lateral movement. A storage shell 414 is fixedly connected to the frame 407, so that the storage shell 414 moves laterally at the same time as the frame 407 moves.

[0039] A wedge 416 is slidably connected to the inner wall of the housing 414, keeping the wedge 416 moving vertically along the inner wall of the housing 414. The outer wall of the wedge 416 is fixedly connected to one end of the spring B415, and the other end of the spring B415 is fixedly connected to the inner wall of the housing 414. The force of the spring B415 drives the wedge 416 to move upward, maintaining the locking and fixing effect between the wedge 416 and the limiting groove 417. The outer wall of the housing 401 is provided with a limiting groove 417. The inner wall of the limiting groove 417 is locked with the outer wall of the wedge 416. The locking between the wedge 416 and the limiting groove 417 prevents the arc-shaped limiting plate 409 from moving inward, further ensuring the stability of the device during the fixation of the patient's head.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A head-assisted fixation device for neurointerventional therapy, comprising a bed (1), characterized in that, An auxiliary plate (2) is hinged to the outer wall of the bed body (1). An adjustment mechanism (5) is provided on the auxiliary plate (2). A fixing mechanism (4) is provided on the auxiliary plate (2). The fixing mechanism (4) includes a housing (401). A motor (402) is fixedly connected to the inner wall of the housing (401). A threaded rod (403) is fixedly connected to the output shaft of the motor (402). A semi-circular sleeve (413) is threadedly connected to the outer wall of the threaded rod (403). A movable plate (411) is fixedly connected to the outer wall of the semi-circular sleeve (413). A guide is slidably connected to the inner wall of the movable plate (411). The outer wall of the movable plate (411) is hinged to the rod (412), the outer wall of the connecting rod (410) is hinged to the arc-shaped limiting plate (409), the outer wall of the arc-shaped limiting plate (409) is fixedly connected to the elastic telescopic rod (408), the outer wall of the elastic telescopic rod (408) is fixedly connected to the frame (407), the frame (407) is fixedly connected to the storage shell (414), the inner wall of the storage shell (414) is slidably connected to the wedge (416), the outer wall of the wedge (416) is elastically connected to the inner wall of the storage shell (414) through spring B (415); The threaded rod (403) is provided in four sets, and the four sets of threaded rods (403) are connected by a chain (404) and a sprocket (405). The inner wall of the sprocket (405) is fixedly connected to the outer wall of the threaded rod (403). The outer wall of the guide rod (412) is fixedly connected to the inner wall of the frame (407), the outer wall of the arc-shaped limiting plate (409) is fixedly connected with a sponge pad, the inner wall of the housing (401) is provided with a sliding groove (406), and the bottom of the frame (407) is slidably connected to the inner wall of the sliding groove (406). The outer wall of the wedge (416) is fixedly connected to one end of the spring B (415), and the other end of the spring B (415) is fixedly connected to the inner wall of the housing (414). The outer wall of the housing (401) is provided with a limiting groove (417), and the inner wall of the limiting groove (417) is engaged with the outer wall of the wedge (416).

2. The head-assisted fixation device for neurointerventional therapy according to claim 1, characterized in that, A rubber pad (3) is fixedly connected to the auxiliary plate (2), the bottom of the housing (401) is fixedly connected to the top of the auxiliary plate (2), and the outer wall of the threaded rod (403) is rotatably connected to the inner wall of the housing (401).

3. The head-assisted fixation device for neurointerventional therapy according to claim 1, characterized in that, The adjustment mechanism (5) includes a support rod (501), a concave frame (502) is slidably connected to the outer wall of the support rod (501), a hinge seat (503) is fixedly connected to the top of the concave frame (502), a push rod (508) is fixedly connected to the top of the hinge seat (503), an L-shaped plate (504) is fixedly connected to the outer wall of the concave frame (502), a plug rod (505) is slidably connected to the outer wall of the L-shaped plate (504), and the outer wall of the plug rod (505) is elastically connected to the outer wall of the L-shaped plate (504) by a spring A (506).

4. The head-assisted fixation device for neurointerventional therapy according to claim 3, characterized in that, The outer wall of the support rod (501) is fixedly connected to the outer wall of the bed (1), and the top of the push rod (508) is hinged to the bottom of the auxiliary plate (2).

5. The head-assisted fixation device for neurointerventional therapy according to claim 3, characterized in that, The outer wall of the plug rod (505) is fixedly connected to one end of the spring A (506), and the other end of the spring A (506) is fixedly connected to the outer wall of the L-shaped plate (504).

6. The head-assisted fixation device for neurointerventional therapy according to claim 3, characterized in that, The outer wall of the support rod (501) is provided with a slot (507), and the inner wall of the slot (507) is inserted into the outer wall of the plug rod (505).

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