Head fixator for patient treatment

By designing a head fixator and utilizing components such as a crossbeam and an arc-shaped protractor, precise positioning and angle adjustment of the head and shoulders are achieved, solving the problem of poor patient compliance with head immobilization after surgery, improving the accuracy and comfort of the fixator, and ensuring the survival of vascularized free flaps.

CN223696256UActive Publication Date: 2025-12-23AFFILIATED STOMATOLOGICAL HOSPITAL OF NANCHANG UNIV (JIANGXI PROVINCIAL STOMATOLOGICAL HOSPITAL)
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Patent Information

Application Number
CN202422921183.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-12-23
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

Some patients have poor compliance with head immobilization after resection of oral and maxillofacial malignant tumors, which may lead to risks in the survival of vascularized free flaps.

Method used

A head fixation device for patient treatment was designed. Through the cooperation of components such as a crossbeam, an arc-shaped measuring plate, a limiting block, a limiting bolt, and a telescopic rod, the device achieves precise positioning and angle adjustment of the head and shoulders, adapts to individual differences among different patients, and improves the accuracy and comfort of head fixation.

Benefits of technology

It improves the precision and comfort of the head fixation device, ensures the stability of the patient's head and shoulders, reduces discomfort during the rehabilitation process, and ensures the survival of the vascularized free flap.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical instruments, and discloses a head fixator for patient treatment, which comprises a cross beam, an arc-shaped angle measuring plate is fixedly connected to one side of the outer wall of the cross beam, two limiting grooves are formed in the arc-shaped angle measuring plate in a penetrating manner, and a first limiting block is slidably connected to the inside of the cross beam. And the first limiting block is slidably connected to the inner wall of one limiting groove, a first limiting bolt is fixedly connected to the interior of the first limiting block, a first limiting nut is in threaded connection with the outer wall of the first limiting bolt, and a first fixing frame is fixedly connected to the lower surface of the first limiting bolt. According to the device, through cooperation of the cross beam, the arc-shaped angle measuring plate, the first limiting block, the first limiting bolt, the first limiting nut, the first fixing frame, the second limiting block, the second limiting bolt and the second limiting nut, the braking angle of the head of a patient can be positioned, and then through cooperation of the telescopic rod and the abutting block, the effect of adjusting according to the head circumference of the patient can be achieved; and the head braking accuracy is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, it relates to a head fixer for patient treatment. BACKGROUND

[0002] After oral and maxillofacial malignant tumor resection, if tissue defect is caused, vascularized free tissue flap repair surgery is a common repair method.In surgery, doctors select appropriate autologous tissue, keep the tissue flap blood supply by reconnecting blood vessels, and then transplant to the area needing repair to fill the defect and promote healing.The surgery aims to reconstruct oral and maxillofacial tissue structure, restore function and appearance, and reduce complications as much as possible.Oral and maxillofacial malignant tumor resection for vascularized free tissue flap repair surgery patients often need head immobilization for 3-7 days after surgery to ensure the survival of vascularized free skin flap.

[0003] However, the postoperative head immobilization compliance of some patients is poor, such as patients undergoing partial tongue / total tongue resection or preventive tracheotomy, who often have language communication disorders after surgery.When expressing their wishes, patients unconsciously nod or shake their heads, which poses a risk to the survival of vascularized free skin flap.

[0004] Therefore, it is necessary to design a head fixer for patient treatment to assist in postoperative head immobilization of oral and maxillofacial malignant tumor resection for vascularized free tissue flap repair surgery patients. SUMMARY

[0005] To make up for the above shortcomings, the utility model provides a head fixer for patient treatment, aiming to solve the problem of poor postoperative compliance of some patients, which causes hidden troubles to postoperative recovery.

[0006] To achieve the above object, the utility model provides the following technical scheme: A patient treatment head fixer, including crossbeam, the crossbeam outer wall one side is fixedly connected with arc protractor board, two limit grooves are passed in the arc protractor board inside, the crossbeam inside is connected with the limit block one of sliding, the limit block one is connected in the limit groove inner wall of sliding of one, the limit block one inside is fixedly connected with the limit bolt one, the limit bolt one outer wall is connected with the limit nut one of screw thread, the limit bolt one lower surface is fixedly connected with fixed frame no.

[0007] Further, the limit assembly includes a spring, one end of the spring is fixedly connected to the inner wall of the fixed plate, the other end of the spring is fixedly connected with a clamping block, the clamping block is disposed through the inside of the connecting rod and the fixed plate.

[0008] Further, the crossbeam is slidably connected with two support frames, and the upper surfaces of the two support frames are fixedly connected with connecting plates.

[0009] Further, one of the support frames is rotatably connected with a bevel gear, and the outer wall of the bevel gear is fixedly connected with a handle.

[0010] Further, one of the support frames is rotatably connected with a lead screw, the lower surface of the lead screw is fixedly connected with a bevel gear, and the bevel gear is meshingly connected with the bevel gear.

[0011] Further, the crossbeam is threadedly connected to the outer wall of the lead screw, and the crossbeam is slidably connected to the outer wall of the support frame.

[0012] Further, the lower surfaces of the two support frames are fixedly connected with C-shaped plates, and the C-shaped plates are internally threadedly connected with fastening bolts.

[0013] Further, one end of the fastening bolt is rotatably connected with an abutting plate, and the abutting plate is slidably connected to the inner wall of the C-shaped plate.

[0014] Beneficial effects

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model discloses a through the cooperation of crossbeam, arc goniometer plate, limit pad no. 1, limit bolt no. 1, limit nut no. 1, fixed frame no. 1, limit pad no. 2, limit bolt no. 2 and limit nut no. 2, realized the positioning patient head braking angle, and then through the cooperation of telescopic link and the resistance block, can realize the effect of adjusting according to the patient head circumference, improve the head braking accuracy.

[0017] 2. The utility model discloses a through the cooperation of connecting rod, fixed plate, fixed frame no. 2, buffer pad, spring and clamping block, realized the effect that is convenient for adjusting according to the different patient shoulder width, improved the practicability of equipment.

[0018] 3. The utility model discloses a through the cooperation of support frame, connecting plate, bevel gear no. 1, handle, screw rod, bevel gear no. 2, C plate, fastening bolt and resistance plate, realized according to the patient lying angle telescopic adjustment, at the same time when braking head, do not limit the patient lying angle, improved the patient's use comfort. ACCURACY

[0019] Figure 1 It is the three -dimensional structure schematic diagram of a patient treatment head fixer that the utility model proposes;

[0020] Figure 2 It is the arc goniometer plate section schematic diagram of a patient treatment head fixer that the utility model proposes;

[0021] Figure 3 It is the support frame section schematic diagram of a patient treatment head fixer that the utility model proposes.

[0022] LEGEND:

[0023] 1, crossbeam;2, arc goniometer plate;3, limit groove;4, limit pad no. 1;5, limit bolt no. 1;6, limit nut no. 1;7, fixed frame no. 1;8, limit pad no. 2;9, limit bolt no. 2;10, limit nut no. 2;11, connecting rod;12, fixed plate;13, fixed frame no. 2;14, buffer pad;15, limit component;1501, spring;1502, clamping block;16, support frame;17, connecting plate;18, bevel gear no. 1;19, handle;20, screw rod;21, bevel gear no. 2;22, C plate;23, fastening bolt;24, resistance plate;25, telescopic link;26, resistance block. DETAILED DESCRIPTION

[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figure 1 Figure 2 The present application provides an embodiment: a head fixator for patient treatment, comprising a crossbeam 1, an arc-shaped angle scale 2 is fixedly connected to one side of the outer wall of the crossbeam 1, two limiting grooves 3 are formed through the arc-shaped angle scale 2, a limiting block one 4 is slidably connected to the inner wall of the crossbeam 1, a limiting screw one 5 is fixedly connected to the inner wall of the limiting block one 4, a limiting nut one 6 is threadedly connected to the outer wall of the limiting screw one 5, a fixed frame one 7 is fixedly connected to the lower surface of the limiting screw one 5, left and right symmetrical telescopic rods 25 are fixedly connected to the inner wall of the fixed frame one 7, a resisting block 26 is fixedly connected to one end of the telescopic rod 25, a limiting block two 8 is slidably connected to the inner wall of the crossbeam 1, a limiting screw two 9 is fixedly connected to the inner wall of the limiting block two 8, a limiting nut two 10 is threadedly connected to the outer wall of the limiting screw two 9, a connecting rod 11 is fixedly connected to the lower surface of the limiting screw two 9, a fixed plate 12 is slidably connected to the inner wall of the connecting rod 11, a fixed frame two 13 is fixedly connected to one side of the outer wall of the fixed plate 12, a buffer pad 14 is fixedly connected to the inner wall of the fixed frame one 7 and the fixed frame two 13, and a limiting assembly 15 is arranged in the fixed plate 12.

[0026] Specifically, the fixed frame one 7 is clamped on the parotid masseter area on both sides of the patient's face, and the patient's head is stably fixed on the equipment. Then, the telescopic rod 25 pushes the resisting block 26, and the head circumference of different patients is adjusted in real time to ensure that the equipment is closely combined with the patient's head. By rotating the limiting nut one 6, the limiting nut one 6 is loosened. At this time, by pulling the limiting screw one 5, the limiting block one 4 is slidably connected to the inner wall of the limiting groove 3. According to the scale on the outer wall of the arc-shaped angle scale 2, the user can conveniently adjust the angle of the patient's head to meet the treatment requirements. After the head is fixed, the limiting nut one 6 is tightened to ensure the fixing effect. Then, the limiting nut two 10 is loosened by rotating it, and then the limiting screw two 9 is pulled to further adjust the angle of the connecting rod 11. Finally, the limiting nut two 10 is tightened to realize the effect of adjusting the shoulder angle according to the use requirements.

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figure 2 ​The limiting assembly 15 includes a spring 1501, one end of which is fixedly connected to the inner wall of the fixed plate 12, and the other end of which is fixedly connected with a clamping block 1502, which is arranged through the inside of the connecting rod 11 and the fixed plate 12;

[0028] Specifically, in use, medical staff first need to adjust the device according to the width of the patient's shoulders. At this time, it is only necessary to press the clamping block 1502 slightly, so that the spring 1501 can be retracted. The retraction of the spring 1501 provides the necessary space for the next operation. Then, the medical staff will push the fixed plate 12 to make it fit the patient's shoulders. In this process, the tension of the spring 1501 plays a key role, which ensures that the fixed plate 12 can be closely and comfortably attached to the patient's shoulders. After completing the above steps, the fixed frame two 13 will be clamped on the patient's shoulders. This design cleverly takes advantage of the structural characteristics of the fixed frame, which can effectively fix the patient's shoulders, thereby achieving the limiting effect on the patient. This limiting not only helps to maintain the stable posture of the patient, but also to a certain extent, reduces the discomfort during the rehabilitation process. It is worth mentioning that the design of the device fully considers the individual differences and comfort needs of patients. Through simple operation, medical staff can easily adjust the device to adapt to the width of the shoulders of different patients.

[0029] Referring to Figure 1 and Figure 3 , the inside of the cross beam 1 is slidingly connected with two support frames 16, and the upper surfaces of the two support frames 16 are fixedly connected with connecting plates 17; the inside of one support frame 16 is rotatably connected with a bevel gear one 18, and one side of the outer wall of the bevel gear one 18 is fixedly connected with a handle 19; the inside of one support frame 16 is rotatably connected with a lead screw 20, and the lower surface of the lead screw 20 is fixedly connected with a bevel gear two 21, which is meshingly connected with the bevel gear one 18; the cross beam 1 is threadedly connected to the outer wall of the lead screw 20, and the cross beam 1 is slidingly connected to the outer wall of the support frame 16; the lower surfaces of the two support frames 16 are fixedly connected with C-shaped plates 22, and the inside of the C-shaped plate 22 is threadedly connected with a fastening bolt 23; one end of the fastening bolt 23 is rotatably connected with an abutting plate 24, which is slidingly connected to the inner wall of the C-shaped plate 22;

[0030] Specifically, first, when the handle 19 is rotated, this simple action triggers a series of precise mechanical reactions. The handle 19 is closely connected with the bevel gear one 18, so when the handle 19 is rotated, the bevel gear one 18 will also rotate. The clever design between the bevel gear one 18 and the bevel gear two 21 is that when the bevel gear one 18 rotates, the bevel gear two 21 will rotate at a corresponding speed and direction. Next, the rotation of the bevel gear two 21 further drives the rotation of the lead screw 20. Here, the rotation of the lead screw 20 causes the cross beam 1 to move up and down through the threaded structure. In addition, in order to facilitate further adjustment of the position of the support frame 16, the device is also designed with the combination of the fastening bolt 23 and the abutment plate 24. When it is necessary to adjust the support frame 16, the abutment plate 24 can be made to disengage from the bed plate by rotating the fastening bolt 23. In this way, the support frame 16 can be freely adjusted to achieve the best support effect. The clever design of the fastening bolt 23 and the abutment plate 24 achieves the functions of fixing and adjusting the support frame 16, ensuring the stability of the structure and also taking into account the flexibility of use.

[0031] Working principle: when positioning is needed, the fixed frame one 7 is clamped on both sides of the patient's face in the masseter region, at this time the abutment block 26 is adjusted according to the head circumference of different patients by pushing the telescopic rod 25, at this time the limiting nut one 6 is loosened by rotating it, at this time the limiting block one 4 is slid in the inner wall of the limiting groove 3 by pulling the limiting screw one 5, then the angle of the patient's head is adjusted according to the scale on the outer wall of the arc protractor 2, at this time the limiting nut one 6 is tightened to achieve the fixed effect, at this time the limiting nut two 10 is loosened by rotating it, at this time the angle of the connecting rod 11 is further adjusted by pulling the limiting screw two 9, the shoulder angle is further adjusted according to the use requirements by tightening the limiting nut two 10;

[0032] Secondly, when the patient's shoulders have different widths, the spring 1501 is retracted by pressing the clamping block 1502, at this time the fixed plate 12 is pushed to facilitate adjustment according to the width of the patient's shoulders, the fixed frame two 13 is clamped on the patient's shoulders to achieve the effect of limiting the patient, it is worth noting that the abutment block 26 and the buffer pad 14 are made of high-molecular gel outer lining film material, which has good softness and pressure resistance, avoiding local skin pressure injury and pressure injury to the facial nerve in the parotid region;

[0033] Again, when the patient needs to lie or other body position, by rotating the handle 19 so that the bevel gear 18 and bevel gear 21 meshing rotation, so as to facilitate the effect of driving the screw rod 20 rotation, through the screw rod 20 drive cross beam 1 to lift, so as to facilitate the effect of driving the cross beam 1 height adjustment, but also can be through the rotation of the fastening bolt 23 so that the resistance plate 24 off the bed board, and then can realize the effect of adjusting the support frame 16 adjustment.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A head holder for patient treatment comprising a crossbar (1), characterized in that: The outer wall of the crossbeam (1) is fixedly connected with an arc angle plate (2), two limiting grooves (3) are arranged in the arc angle plate (2), a limiting block (4) is slidably connected in the crossbeam (1), the limiting block (4) is slidably connected to the inner wall of one of the limiting grooves (3), a limiting bolt (5) is fixedly connected to the limiting block (4), a limiting nut (6) is threadedly connected to the outer wall of the limiting bolt (5), a fixed frame (7) is fixedly connected to the lower surface of the limiting bolt (5), two symmetrical telescopic rods (25) are fixedly connected to the inside of the fixed frame (7), a resisting block (26) is fixedly connected to one end of the telescopic rod (25), a limiting block (8) is slidably connected in the crossbeam (1), the limiting block (8) is slidably connected to the inner wall of the other limiting groove (3), a limiting bolt (9) is fixedly connected to the limiting block (8), a limiting nut (10) is threadedly connected to the outer wall of the limiting bolt (9), a connecting rod (11) is fixedly connected to the lower surface of the limiting bolt (9), a fixed plate (12) is slidably connected to the inner wall of the connecting rod (11), a fixed frame (13) is fixedly connected to one side of the outer wall of the fixed plate (12), a buffer pad (14) is fixedly connected to the inner wall of the fixed frame (7) and the fixed frame (13), and a limiting assembly (15) is arranged in the fixed plate (12).

2. A head immobilizer for patient treatment according to claim 1, characterized in that: The limiting assembly (15) comprises a spring (1501), one end of the spring (1501) is fixedly connected to the inner wall of the fixed plate (12), the other end of the spring (1501) is fixedly connected with a clamping block (1502), and the clamping block (1502) is arranged in the connecting rod (11) and the fixed plate (12).

3. A head immobilizer for patient treatment according to claim 2, characterized in that: Two supporting frames (16) are slidably connected in the crossbeam (1), and a connecting plate (17) is fixedly connected to the upper surface of each supporting frame (16).

4. A head immobilizer for patient treatment according to claim 3, characterized in that: A bevel gear (18) is rotatably connected in one of the supporting frames (16), and a handle (19) is fixedly connected to one side of the outer wall of the bevel gear (18).

5. A head immobilizer for patient treatment according to claim 4, characterized in that: A lead screw (20) is rotatably connected in one of the supporting frames (16), a bevel gear (21) is fixedly connected to the lower surface of the lead screw (20), and the bevel gear (21) is in meshing connection with the bevel gear (18).

6. A head immobilizer for patient treatment according to claim 5, characterized in that: The crossbeam (1) is threadedly connected to the outer wall of the lead screw (20), and the crossbeam (1) is slidably connected to the outer wall of the supporting frame (16).

7. A head immobilizer for patient treatment according to claim 6, characterized in that: A C-shaped plate (22) is fixedly connected to the lower surface of each supporting frame (16), and a fastening bolt (23) is threadedly connected in the C-shaped plate (22).

8. A head immobilizer for patient treatment according to claim 7, characterized in that: A resisting plate (24) is rotatably connected to one end of the fastening bolt (23), and the resisting plate (24) is slidably connected to the inner wall of the C-shaped plate (22).