Head fixing device for bronchoscope respiratory examination

Abstract

The invention provides a head fixing device for bronchoscope respiratory examination, and relates to the field of medical auxiliary instruments. An adjustable neck support is slidably connected to the front side of the fixing head seat, an adjusting assembly is connected to the bottom of the adjustable neck support, side cheek fixing seats are slidably connected to the left side and the right side of the top of the fixing head seat, an upper fixing head cover is hinged to the middle of the rear side of the end face of the top of the fixing head seat, and an overturning seat is hinged to the top of the front side of the upper fixing head cover. An angle adjusting seat is rotationally connected to the middle of the front end of the overturning seat, an adjusting sliding frame is slidably connected into the front side wall of the angle adjusting seat, and a limiting sliding block is slidably connected to the front side of the right wall of the overturning seat. The side cheek fixing bases are preliminarily attached to the cheeks under the elastic action of the supporting springs, the fixing strength can be flexibly adjusted through cooperation of the adjusting rods, the head is effectively prevented from shaking left and right, the upper fixing head cover is stably fixed through the magnetic attraction connecting blocks, the head is further restrained from the upper portion, and the problems that the multi-dimensional limiting effect of the head is poor, and the head and the neck are synchronously matched and fixed are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary instruments, and particularly relates to a head fixing device for bronchoscope respiration examination. Background Art

[0002] Bronchoscope respiration examination, as a key means for diagnosing and treating respiratory diseases, plays an extremely important role in the medical field. In the actual operation of this examination, the stable fixation of the patient's head cannot be ignored, and its importance is self-evident. Only by achieving the stable fixation of the patient's head can it be ensured that the bronchoscope can accurately and smoothly enter the airway, laying a solid foundation for the orderly development of subsequent examination work, and then comprehensively ensuring the high accuracy of the examination results and the safety of the entire examination process.

[0003] Based on the above, the existing head fixing devices have the following deficiencies: When fixing the patient's head in multiple dimensions, the adjustment method of the side cheek fixing part is single, and it is impossible to flexibly adjust the fixing force to limit the left and right shaking of the head. Moreover, there is a lack of components that can be accurately adjusted and fitted to the patient's neck, resulting in easy shaking of the patient's neck, affecting the stability of the head, and there is a risk of injuring the patient's airway during the examination. In addition, there is a lack of components that can be flexibly adjusted in angle, making it difficult to meet the operation requirements of different insertion angles and directions of the bronchoscope, thus affecting the examination efficiency and accuracy. Summary of the Invention

[0004] The present invention relates to a head fixing device for bronchoscope respiration examination. Its side cheek fixing seat is initially fitted to the cheek under the elastic force of the support spring, and the fixing force can be flexibly adjusted in cooperation with the adjustment rod, effectively limiting the left and right shaking of the head. The upper fixing head cover is firmly fixed through the magnetic attraction connecting block, further restricting the head from above. These components cooperate with each other to provide a stable operation basis for bronchoscope examination, ensure that the bronchoscope can accurately enter the airway, avoid damage to the airway caused by head movement, and improve the accuracy and safety of the examination.

[0005] The present invention provides a head fixing device for bronchoscope respiration examination, which specifically includes: a fixed head seat; an adjustable neck support is slidably connected to the front side of the fixed head seat, an adjustment component is connected to the bottom of the adjustable neck support, side cheek fixing seats are slidably connected to the left and right sides of the top of the fixed head seat, an adjustment rod is threadedly connected to the middle of the outer side of the side cheek fixing seat, an upper fixing head cover is hinged to the middle of the rear side of the top end face of the fixed head seat, a flipping seat is hinged to the top of the front side of the upper fixing head cover, an angle adjustment seat is rotatably connected to the middle of the front end of the flipping seat, an adjustment slide is slidably connected to the middle of the front side wall of the angle adjustment seat, an inclined guiding ring is fixedly installed at the bottom of the front side wall of the adjustment slide, a locking rod is threadedly connected to the middle of the rear side wall of the angle adjustment seat, and a limiting slider is slidably connected to the front side of the right wall of the flipping seat.

[0006] Furthermore, mounting fins are fixedly connected to the tops of the left and right sides of the fixed headrest. The mounting fins are mounted on the operating table. A groove matching the head is provided on the front side of the top end surface of the fixed headrest. A neck support hidden groove is provided in the front side wall of the fixed headrest. Side ear seats are symmetrically provided at the middle positions of the tops of the left and right side walls of the fixed headrest. Support springs are installed in the round holes at the middle positions of the opposite side walls of the two side ear seats.

[0007] Furthermore, the adjustable neck support is a steel bracket structure wrapped with a soft material and is semi-circular. The adjustable neck support is slidably connected in the neck support hidden groove on the front side of the fixed headrest. Adjusting rods are fixedly connected to the left and right sides of the bottom of the adjustable neck support. Threads are provided on the outer side walls of the adjusting rods.

[0008] Furthermore, the adjusting assembly is arranged in the fixed headrest. The adjusting assembly is composed of an adjusting sleeve and a control rod. The adjusting sleeve is threadedly connected to the outside of the adjusting rod at the bottom of the adjustable neck support. A driven gear is fixedly connected to the bottom of the outer side wall of the adjusting sleeve. The control rod is located behind the driven gear. Control gears are provided at the left and right ends of the control rod and are meshed and connected to the rear side of the driven gear. The control gear and the driven gear form a worm and gear mechanism.

[0009] Furthermore, two side cheek fixing seats are symmetrically provided. Guide sliding columns in the shape of "U" are fixedly installed on the opposite side walls of the two side cheek fixing seats. The guide sliding columns are slidably connected in the side ear seats of the fixed headrest. The side walls of the two side cheek fixing seats in contact with the side ear seats are connected to the support springs. Adjusting rods are threadedly connected to the middle positions of the outer ends of the guide sliding columns. One end of the adjusting rod is in contact with the outer side wall of the side ear seat.

[0010] Furthermore, magnetic adsorption connection blocks are fixedly installed at the bottoms of the left and right ends on the front side of the upper fixed head cover. The bottoms of the magnetic adsorption connection blocks are adsorbed on the upper sides of the side ear seats of the fixed headrest. A guide sliding groove is provided at the front end of the outer wall on the right side of the flipping seat hinged to the top of the front side of the upper fixed head cover. A support spring is installed in the round hole at the middle position of the rear side wall of the guide sliding groove.

[0011] Furthermore, an angle limit tooth is installed on the outer side wall of the right-side rotating shaft of the angle adjusting seat. A limit sliding block is meshed and connected to the rear side of the angle limit tooth. The limit sliding block is slidably connected in the guide sliding groove provided in the flipping seat. A limit sliding column at the middle position of the rear side wall of the limit sliding block is slidably connected in the round hole on the rear side wall of the guide sliding groove. A control lever is fixedly connected to the middle position of the right side wall of the limit sliding block.

[0012] Furthermore, a locking seat is provided on the rear outer wall of the angle adjusting seat. A locking rod is threadedly connected in the locking seat. The rear end of the locking rod passes through and is slidably connected with an adjusting lever.

[0013] The present invention provides a head fixing device for bronchoscope respiration examination, which has the following beneficial effects: 1. The side cheek fixing seat is initially fitted to the cheek under the elastic force of the support spring. With the cooperation of the adjustment rod, the fixing force can be flexibly adjusted, effectively restricting the left - right shaking of the head. The upper fixing headgear is firmly fixed through the magnetic attraction connecting block, further restricting the head from above. These components cooperate with each other to provide a stable operation basis for bronchoscopy, ensuring that the bronchoscope can accurately enter the airway, avoiding damage to the airway caused by head movement, and improving the accuracy and safety of the examination.

[0014] 2. Through components such as the adjustable neck support, side cheek fixing seat, and upper fixing headgear, multi - dimensional and stable fixation of the patient's head is achieved. The adjustable neck support realizes height adjustment through the worm and worm gear mechanism, can accurately fit the patient's neck, hold up the neck to keep the respiratory tract unobstructed, and prevent neck shaking from affecting head stability.

[0015] 3. The angle adjustment seat can freely adjust the angle through the cooperation of the limit slider and the angle limit teeth. Combined with the locking rod and the adjustment slide, the position of the guiding ring can be accurately fixed, facilitating flexible adjustment by medical staff according to the insertion angle and direction of the bronchoscope, and providing a more favorable space for the examination operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0017] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0018] In the drawings: Figure 1 is a right - front - side axonometric structural schematic diagram of the head fixing device of the embodiment of the present invention.

[0019] Figure 2 is a structural schematic diagram of the upper fixing headgear of the head fixing device of the embodiment of the present invention being flipped backward.

[0020] Figure 3 is a split - structure schematic diagram of the fixing head seat, adjustable neck support, and adjustment component of the head fixing device of the embodiment of the present invention.

[0021] Figure 4 is a split - structure schematic diagram of the fixing head seat and side cheek fixing seat of the head fixing device of the embodiment of the present invention.

[0022] Figure 5 is a split - structure schematic diagram of the upper fixing headgear, flipping seat, angle adjustment seat, and adjustment slide of the head fixing device of the embodiment of the present invention.

[0023] Figure 6 is of the head fixing device of the embodiment of the present invention Figure 5 magnified structural schematic diagram at A.

[0024] Figure 7 Schematic diagram of the connection structure at the rear side of the angle adjustment seat and the locking rod of the head fixing device according to an embodiment of the present invention.

[0025] Figure 8 Schematic diagram of the disassembled structure of the angle adjustment seat and the locking rod of the head fixing device according to an embodiment of the present invention.

[0026] List of reference numerals 1. Fixed head seat; 101. Mounting wing; 102. Hidden groove for neck support; 103. Side ear seat; 2. Adjustable neck support; 201. Adjusting rod; 3. Adjusting bushing; 301. Driven gear; 4. Control rod; 401. Control gear; 5. Side cheek fixing seat; 501. Guide sliding column; 6. Adjusting rod; 7. Support spring; 8. Upper fixed head cover; 801. Magnetic connection block; 9. Flipping seat; 901. Guide chute; 10. Limit slider; 1001. Limit sliding column; 1002. Dial control rod; 11. Angle adjustment seat; 1101. Angle limit tooth; 1102. Locking seat; 12. Locking rod; 1201. Adjusting dial rod; 13. Adjusting slide carriage; 1301. Guide ring. Detailed implementation manners

[0027] In order to make the objectives, solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the ordinary meanings in the art. The same reference numerals in the drawings represent the same components.

[0028] Embodiment 1: Please refer to Figures 1 to 8 as shown in The present invention provides a head fixing device, including a fixed head seat 1; an adjustable neck support 2 is slidably connected to the front side of the fixed head seat 1, an adjusting assembly is connected to the bottom of the adjustable neck support 2, side cheek fixing seats 5 are slidably connected to the left and right sides of the top of the fixed head seat 1, an adjusting rod 6 is threadedly connected to the middle of the outer side of the side cheek fixing seat 5, an upper fixed head cover 8 is hinged to the middle of the rear side of the top end face of the fixed head seat 1, a flipping seat 9 is hinged to the top of the front side of the upper fixed head cover 8, an angle adjustment seat 11 is rotatably connected to the middle of the front end of the flipping seat 9, a locking rod 12 is threadedly connected to the middle of the rear side wall of the angle adjustment seat 11, and a limit slider 10 is slidably connected to the front side of the right wall of the flipping seat 9.

[0029] Among them, installation fins 101 are fixedly connected to the top of the left and right sides of the fixed headrest 1. The installation fins 101 are installed on the operating table. A groove matching the head is provided on the front side of the top end surface of the fixed headrest 1. A neck support hidden groove 102 is provided in the front side wall of the fixed headrest 1. Side ear seats 103 are symmetrically provided at the middle of the top of the left and right side walls of the fixed headrest 1. A support spring 7 is installed in the round holes at the middle of the opposite side walls of the two side ear seats 103.

[0030] Among them, the adjustable neck support 2 is a steel bracket structure wrapped with soft materials and is semi-circular. The adjustable neck support 2 is slidably connected in the neck support hidden groove 102 on the front side of the fixed headrest 1. Fixed connection rods 201 are fixedly connected to the left and right sides of the bottom of the adjustable neck support 2. Threads are provided on the outer side wall of the adjustment rod 201.

[0031] Among them, the adjustment assembly is arranged in the fixed headrest 1. The adjustment assembly is composed of an adjustment sleeve 3 and a control rod 4. The adjustment sleeve 3 is threadedly connected to the outside of the adjustment rod 201 at the bottom of the adjustable neck support 2. A driven gear 301 is fixedly connected to the bottom of the outer side wall of the adjustment sleeve 3. The control rod 4 is located behind the driven gear 301. Control gears 401 are provided at the left and right ends of the control rod 4 and are meshed and connected to the rear side of the driven gear 301. The control gear 401 and the driven gear 301 form a worm and worm gear mechanism.

[0032] Adopting the above technical solution, by arranging the adjustable neck support 2 that can be lifted and lowered in the neck support hidden groove 102 on the front side of the fixed headrest 1, during actual use, by rotating the control rod 4, the worm and worm gear mechanism composed of the control gear 401 and the driven gear 301 can convert the rotation of the control rod 4 into the up and down movement of the adjustment sleeve 3, thereby controlling the adjustable neck support 2 to lift and lower in the neck support hidden groove 102, so that the adjustable neck support 2 can accurately fit on the back of the patient's neck, not only providing stable support for the patient's neck, but also lifting the patient's neck, keeping the patient's respiratory tract unobstructed, preventing the neck from shaking and affecting the stability of the head during the examination process, reducing the compression feeling on the neck, and improving the comfort of the patient.

[0033] Among them, two side cheek fixing seats 5 are symmetrically provided. Guide sliding columns 501 in the shape of "U" are fixedly installed on the opposite side walls of the two side cheek fixing seats 5. The guide sliding columns 501 are slidably connected in the side ear seats 103 of the fixed headrest 1. The side walls of the two side cheek fixing seats 5 in contact with the side ear seats 103 are connected to the support spring 7. An adjustment rod 6 is threadedly connected to the middle of the outer end of the guide sliding column 501. One end of the adjustment rod 6 is in contact with the outer side wall of the side ear seat 103.

[0034] With the above technical solution, the supporting spring 7 gives an inward elastic force to the side cheek fixing seat 5, so that the side cheek fixing seat 5 fits on both sides of the patient's cheeks. By rotating the adjustment rod 6, the position of the side cheek fixing seat 5 in the side ear seat 103 is changed, thereby adjusting the fixing force on the patient's cheeks. This design can not only ensure the effective fixing of the patient's head in the left and right directions and prevent the head from shaking left and right, but also avoid excessive compression on the patient's face through the elastic buffer of the supporting spring 7, reduce the discomfort of the patient, and the two side cheek fixing seats 5 are symmetrically arranged. Cooperating with the groove on the top of the fixing head seat 1, the patient's head can be stably restricted from multiple directions, further improving the fixing effect.

[0035] Among them, magnetic connection blocks 801 are fixedly installed at the bottoms of the left and right ends of the front side of the upper fixing head cover 8. The bottoms of the magnetic connection blocks 801 are adsorbed on the upper sides of the side ear seats 103 of the fixing head seat 1. A guiding chute 901 is provided at the front end of the outer wall of the right side of the flipping seat 9 hinged to the top of the front side of the upper fixing head cover 8. A supporting spring 7 is installed in the circular hole in the middle of the rear side wall of the guiding chute 901.

[0036] Among them, an angular limit tooth 1101 is installed on the outer wall of the right side rotating shaft of the angular adjustment seat 11. The angular limit tooth 1101 is meshed and connected with a limit slider 10 at the rear side. The limit slider 10 is slidably connected in the guiding chute 901 opened in the flipping seat 9. A limit sliding column 1001 in the middle of the rear side wall of the limit slider 10 is slidably connected in the circular hole in the rear side wall of the guiding chute 901. A control lever 1002 is fixedly connected to the middle of the right side wall of the limit slider 10.

[0037] Among them, a locking seat 1102 is provided on the rear outer wall of the angular adjustment seat 11. A locking rod 12 is threadedly connected in the locking seat 1102. The rear end of the locking rod 12 penetrates and is slidably connected with an adjustment lever 1201. An adjustment slide frame 13 is slidably connected in the front side wall of the angular adjustment seat 11. An inclined guiding ring 1301 is fixedly installed at the bottom of the front side wall of the adjustment slide frame 13.

[0038] By adopting the above technical scheme, the upper fixed head cover 8 is flipped over so that the magnetic connection blocks 801 at the bottom of the left and right ends of the front side of the upper fixed head cover 8 are adsorbed on the upper side of the side ear seats 103 of the fixed head seat 1, so that the upper fixed head cover 8 is stably fixed, the patient's head is constrained from above, and the fixing effect is enhanced, and the position of the angle adjustment seat 11 is adjusted by hingedly connecting the flip seat 9 at the top of the front side of the upper fixed head cover 8. By setting the angle adjustment seat 11, the angle limiting teeth 1101, the limiting slider 10, the limiting slider 1001 and the dial control rod 1002, the medical staff can drive the limiting slider 10 to slide in the guide slide groove 901 by dialing the dial control rod 1002. When the limiting slider 10 is out of engagement with the angle limiting teeth 1101, the angle adjustment seat 11 can be freely rotated. After adjusting to a suitable angle, the dial control rod 1002 is released. Under the action of the support spring 7, the limiting slider 10 is re-engaged with the angle limiting teeth 1101 to fix the angle adjustment seat 11 at the corresponding angle. The angle adjustment seat 11 is adjusted to a suitable angle, and then the adjusting lever 1201 is matched with the locking seat 1102, the locking rod 12, the adjusting lever 1201, the adjusting slide 13 and the guide ring 1301. After the angle adjustment seat 11 is adjusted to a suitable angle, the adjusting lever 1201 is rotated to drive the locking rod 12 to move, so that the locking rod 12 and the adjusting slide 13 are pressed tightly, thereby fixing the position of the adjusting slide 13. The guide ring 1301 on the front side wall of the adjusting slide 13 can be used to guide inspection instruments such as a bronchoscope. During the bronchoscope inspection, the angle adjustment seat 11 can be flexibly adjusted according to the insertion angle and direction of the bronchoscope to provide a more favorable space for the operation of the bronchoscope. In addition, by fixing the adjusting slide 13, the position of the guide ring 1301 can be ensured to be stable, providing a stable guiding path for the bronchoscope, and avoiding the inspection instrument from shaking during operation and damaging the patient's airway. At the same time, the locking rod 12 can be loosened according to actual inspection needs to adjust the position of the adjusting slide 13, thereby improving the adaptability of the device to different inspection operations.

[0039] Specific usage and function of this embodiment: In the present invention, first align the installation wings 101 on the top of the left and right sides of the fixed head seat 1 with the corresponding installation positions of the operating bed, use matching bolts or other fixing connectors to firmly install the fixed head seat 1 on the operating bed, and then place the patient's head in the groove opened on the top of the fixed head seat 1. Then, according to the actual length and physiological curvature of the patient's neck, the medical staff stands on the side of the patient's head and rotates the control lever 4. Since the control gear 401 and the driven gear 301 constitute a worm gear mechanism, when the control lever 4 is rotated, the control gear 401 drives the driven gear 301 to rotate, thereby causing the adjusting shaft sleeve 3 to move up and down along the adjusting rod 201 at the bottom of the adjustable neck support 2, driving the adjustable neck support 2 to rotate in the neck support. The adjustable neck support 2 is slowly raised or lowered in the hidden groove 102, and the height of the adjustable neck support 2 is continuously adjusted until it accurately fits the back of the patient's neck, providing stable support for the patient's neck, while lifting the patient's neck to keep the patient's airway unobstructed. Then the adjusting rod 6 is rotated to change the position of the side cheek fixing seat 5 in the side ear seat 103, and then the fixing force on the patient's cheek is adjusted to ensure that the fixing force can effectively prevent the patient's head from shaking left and right without causing excessive pressure on the patient's face. Then the upper fixed head cover 8 is flipped forward around the hinge point at the middle of the rear side of the top end surface of the fixed head seat 1, so that the magnetic connection blocks 801 at the bottom of the left and right ends of the front side of the upper fixed head cover 8 are adsorbed on the upper side of the side ear seat 103 of the fixed head seat 1, so as to achieve stable fixation of the upper fixed head cover 8, and then adjust the position of the side cheek fixing seat 5 in the side ear seat 103. The patient's head is further restrained, and then the angle of the angle adjustment seat 11 is adjusted according to the actual needs of the bronchoscope examination. The medical staff toggles the dial control rod 1002 on the limiting slider 10 on the front side of the right wall of the flip seat 9, driving the limiting slider 10 to slide in the guide slot 901, so that the limiting slider 10 is disengaged from the angle limiting tooth 1101 on the outer wall of the right side rotating shaft of the angle adjustment seat 11. At this time, the angle adjustment seat 11 can be freely rotated to adjust it to a position suitable for the insertion angle and direction of the bronchoscope. After the adjustment is completed, the dial control rod 1002 is released, and under the action of the support spring 7 installed in the circular hole on the rear wall of the guide slot 901, the limiting slider 10 is re-engaged with the angle limiting tooth 1101 to fix the angle adjustment seat 11 at the corresponding angle. After the angle adjustment seat 11 is adjusted to a suitable angle, the adjustment lever 1201 is rotated to drive the locking rod 12 to move in the locking seat 1102, so that the locking rod 12 is pressed against the adjustment slide 13, thereby fixing the position of the adjustment slide 13 in the front side wall of the angle adjustment seat 11. The inclined guide ring 1301 fixedly installed at the bottom of the front side wall of the adjustment slide 13 is used to guide inspection instruments such as bronchoscopes. If the guide path of the bronchoscope needs to be adjusted during the inspection, the adjustment lever 1201 can be rotated again to loosen the locking rod 12, adjust the position of the adjustment slide 13, and re-fix it after appropriate adjustment to meet the needs of different inspection operations, provide a stable and flexible guiding path for the bronchoscope, and avoid damaging the patient's airway due to shaking of the inspection instrument during operation.

[0040] The above are only exemplary embodiments of the present invention and are not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. A head fixation device for bronchoscope respiration examination, characterized in that, Comprising a fixed headrest (1); an adjustable neck support (2) is slidably connected to the front side of the fixed headrest (1), an adjustment assembly is connected to the bottom of the adjustable neck support (2), side cheek fixing seats (5) are slidably connected to the left and right sides of the top of the fixed headrest (1), an adjustment rod (6) is threadedly connected to the middle of the outer side of the side cheek fixing seat (5), the upper fixed head cover (8) is hinged to the middle of the rear side of the top end face of the fixed headrest (1), a flip seat (9) is hinged to the top of the front side of the upper fixed head cover (8), an angle adjustment seat (11) is rotatably connected to the middle of the front end of the flip seat (9), an adjustment slide frame (13) is slidably connected to the middle of the front side wall of the angle adjustment seat (11), an inclined guide ring (1301) is fixedly installed at the bottom of the front side wall of the adjustment slide frame (13), a locking rod (12) is threadedly connected to the middle of the rear side wall of the angle adjustment seat (11), and a limit slider (10) is slidably connected to the front side of the right wall of the flip seat (9).

2. The head fixing device for bronchoscope respiration examination according to claim 1, characterized in that, Installation wings (101) are fixedly connected to the top of the left and right sides of the fixed headrest (1), the installation wings (101) are installed on the operating table, a groove matching the head is provided in the front side of the top end face of the fixed headrest (1), a neck support hidden groove (102) is provided in the middle of the front side wall of the fixed headrest (1), side ear seats (103) are symmetrically provided at the middle of the top of the left and right side walls of the fixed headrest (1), and a support spring (7) is installed in the round holes in the middle of the opposite side walls of the two side ear seats (103).

3. The head fixing device for bronchoscope respiration examination according to claim 1, characterized in that, The adjustable neck support (2) is a steel bracket structure wrapped with a soft material and is semi-circular. The adjustable neck support (2) is slidably connected to the neck support hidden groove (102) on the front side of the fixed headrest (1). Adjustment rods (201) are fixedly connected to the left and right sides of the bottom of the adjustable neck support (2), and threads are provided on the outer side walls of the adjustment rods (201).

4. The head fixation device for bronchoscope respiration examination according to claim 1, characterized in that, The adjustment assembly is arranged in the fixed headrest (1). The adjustment assembly is composed of an adjustment sleeve (3) and a control rod (4). The adjustment sleeve (3) is threadedly connected to the outside of the adjustment rod (201) at the bottom of the adjustable neck support (2). A driven gear (301) is fixedly connected to the bottom of the outer side wall of the adjustment sleeve (3). The control rod (4) is located behind the driven gear (301). Control gears (401) are provided at the left and right ends of the control rod (4) and are meshed with the rear side of the driven gear (301). The control gear (401) and the driven gear (301) form a worm and worm gear mechanism.

5. The head fixing device for bronchoscope respiration examination according to claim 1, characterized in that, Two side cheek fixing seats (5) are symmetrically provided. Guide sliding columns (501) in the shape of "U" are fixedly installed on the opposite side walls of the two side cheek fixing seats (5). The guide sliding columns (501) are slidably connected to the side ear seats (103) of the fixed headrest (1). The side walls of the two side cheek fixing seats (5) in contact with the side ear seats (103) are connected to the support spring (7). An adjustment rod (6) is threadedly connected to the middle of the outer end of the guide sliding column (501), and one end of the adjustment rod (6) is in contact with the outer side wall of the side ear seat (103).

6. The head fixing device for bronchoscope respiration examination according to claim 1, characterized in that, At the bottom of the left and right ends of the front side of the upper fixed hood (8), magnetic adsorption connection blocks (801) are fixedly installed. The bottom of the magnetic adsorption connection blocks (801) is adsorbed on the upper side of the side ear seats (103) of the fixed head base (1). At the front end of the outer wall of the right side of the flip seat (9) hinged to the top of the front side of the upper fixed hood (8), a guide chute (901) is provided. A support spring (7) is installed in the round hole in the middle of the rear side wall of the guide chute (901).

7. The head fixing device for bronchoscope respiration examination according to claim 1, wherein, An angle limit tooth (1101) is installed on the outer wall of the right side shaft of the angle adjustment seat (11). The angle limit tooth (1101) is meshed and connected with a limit slider (10) at the rear side. The limit slider (10) is slidably connected to the guide chute (901) provided in the flip seat (9). The limit slide post (1001) in the middle of the rear side wall of the limit slider (10) is slidably connected to the round hole in the rear side wall of the guide chute (901). A control lever (1002) is fixedly connected to the middle of the right side wall of the limit slider (10).

8. The head fixing device for bronchoscope respiration examination according to claim 1, wherein, A locking seat (1102) is provided on the outer wall of the rear side of the angle adjustment seat (11). A locking rod (12) is threadedly connected in the locking seat (1102). The rear end of the locking rod (12) penetrates and is slidably connected with an adjustment lever (1201).

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