Head fixing device for bronchoscope alveolar lavage of children

Abstract

The invention provides a head fixing device for children bronchoscope alveolar lavage, which comprises a backrest base, a neck pillow block is integrally formed on the upper surface of the backrest base, a rotating groove is formed in one side of the backrest base, and a fixing rod is arranged on the inner wall of the rotating groove. One end of the fixing rod penetrates through the head rotating plate and is rotationally connected with the head rotating plate through a bearing; the take-up roller is driven by the servo motor to tighten the fixing belt, the fixing belt moves in the movable through hole to tighten the two head clamping plates, three-point type stable fixing of the head temple and the forehead of a child patient is achieved, shaking of the head in an operation is effectively prevented, and by means of elastic potential energy of the spring and accurate control of the servo motor, the safety of the child patient is improved. The distance between the head clamping plates and the tightness degree of the fixing belt can be flexibly adjusted, so that the fixing requirements of children of different age groups and different head circumferences can be quickly met, children patients of different body types can be fixed without replacing accessories, and the universality is high.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a head fixation device for bronchoscopic alveolar lavage in children. Background Technology

[0002] Bronchoscopic bronchoalveolar lavage in children is an important clinical diagnostic and treatment technique in pediatric respiratory medicine. It involves injecting physiological saline into the bronchi and alveoli through a bronchoscope and then aspirating the lavage fluid for pathogenic and cytological examinations, or for treating lung diseases (such as lung infections and atelectasis). During the procedure, the child is usually placed in a supine position. To facilitate the smooth passage of the bronchoscope through the glottis and into the bronchi at all levels, the child's head is often tilted back to fully expose the airway and maintain a clear field of view.

[0003] The existing operating methods and their problems mainly include: 1. Because children are young and have weak self-control, they often experience involuntary head shaking during surgery due to fear, foreign body sensation, or cough reflex. Currently, in clinical practice, medical staff often rely on manual assistance to fix the child's head or use simple straps for restraint. Manual fixation is not only labor-intensive but also difficult to maintain absolute stability for a long time. Simple straps are prone to loosening. Once the head moves around, it can easily cause bronchoscopic damage to the airway mucosa, increasing the risk and difficulty of the surgery.

[0004] Second, children of different ages have significant differences in body size and head circumference. Existing fixation devices are mostly fixed-size structures, which are difficult to quickly adapt to the head size of different patients. In addition, the rigid fixation material comes into direct contact with the child's skin, which can easily cause pressure marks or even damage to the ears and forehead, and increases the child's discomfort and crying, affecting the degree of cooperation during the surgery.

[0005] Third, during surgery, it is often necessary to adjust the tilt angle of the head according to the needs of the operation. Existing adjustment devices often lack consideration for the physiological characteristics of the neck. When adjusting the angle, if there is no degree of freedom of relative displacement between the support device and the head fixation point, it is easy to cause excessive traction on the child's fragile neck muscles, or even cause cervical spine injury. Therefore, a head fixation device for pediatric bronchoscopic alveolar lavage is proposed. Summary of the Invention

[0006] In view of this, embodiments of the present invention provide a head fixation device for bronchoscopic alveolar lavage in children, to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0007] The technical solution of this invention is implemented as follows: A head fixation device for bronchoscopic alveolar lavage in children includes a backrest base. A neck pillow block is integrally formed on the upper surface of the backrest base. A rotating groove is provided on one side of the backrest base. A fixing rod is provided on the inner wall of the rotating groove. One end of the fixing rod passes through a head rotating plate and is rotatably connected by a bearing. An electric push rod is provided on the upper surface of the backrest base and is hinged by a pin. The piston rod of the electric push rod is hinged to the lower surface of the head rotating plate by a pin. A head fixation assembly is slidably connected to the upper surface of the head rotating plate.

[0008] In some embodiments, the head-fixing assembly includes a headrest movable block, two fixing plates, two springs, two head clamping plates, a fixing strap, and a winding mechanism. The lower surface of the headrest movable block is slidably connected to the upper surface of the head rotating plate, and the upper surface of the headrest movable block has a groove. The upper surface of the headrest movable block has a groove, and the inner wall of the groove is provided with a fourth silicone pad. The upper surface of the headrest movable block has a mounting groove and an operating through hole. One side of the fixing strap is disposed on the inner wall of the mounting groove, and the two fixing plates... The head clamping plates are slidably connected to the upper surface of the headrest movable block; the two fixing plates are symmetrically arranged on the upper surface of the headrest movable block, and the two springs are disposed on the adjacent side of the two fixing plates with their opposing ends; the two springs are disposed on the opposing side of the two head clamping plates, and the upper surface of the head clamping plates is provided with a movable through hole; the fixing strap passes through the movable through hole and the operating through hole in sequence, and the other side of the fixing strap is disposed on the winding mechanism, which is disposed on the headrest movable block.

[0009] In some embodiments, the winding mechanism includes a U-shaped frame, a servo motor, and a winding roller, wherein the U-shaped frame is disposed on the outer wall of the headrest movable block, and the servo motor is disposed on the outer wall of the U-shaped frame; the two ends of the winding roller are rotatably connected by bearings, the output shaft of the servo motor passes through the U-shaped frame and is disposed at one end of the winding roller, and the other side of the fixing belt is disposed on the inner wall of the winding roller.

[0010] In some embodiments, the upper surface of the head rotating plate is symmetrically provided with movable through slots, the lower surface of the headrest movable block is provided with a U-shaped movable block, the U-shaped movable block passes through the movable through slots, the inner bottom wall of the U-shaped movable block is uniformly provided with a second slider, the lower surface of the head rotating plate is uniformly provided with a second sliding groove, and the outer wall of the second slider is slidably connected to the inner wall of the second sliding groove.

[0011] In some embodiments, the upper surface of the headrest movable block is provided with first sliding grooves symmetrically arranged, and the lower surface of the head clamping plate is provided with first sliders symmetrically arranged, with the outer wall of the first slider slidably connected to the inner wall of the first sliding groove.

[0012] In some embodiments, the inner wall of the movable through hole is uniformly provided with second steel balls, and the outer wall of the fixing band is in contact with a plurality of the second steel balls.

[0013] In some embodiments, the inner wall of the operating through hole is uniformly provided with first steel balls, and the outer wall of the fixing band is in contact with a plurality of the first steel balls.

[0014] In some embodiments, a first silicone pad is provided on the upper surface of the backrest base, and a second silicone pad is provided on the outer wall of the neck pillow block.

[0015] In some embodiments, a third silicone pad is provided on each of the two head clamping plates on an adjacent side.

[0016] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: I. This invention uses a servo motor to drive a take-up roller to tighten the fixing strap. The fixing strap moves within the movable through hole to tighten the two head clamping plates, achieving a three-point stable fixation of the child's head at the temples and forehead. This effectively prevents head movement during surgery. Utilizing the elastic potential energy of the spring and the precise control of the servo motor, the spacing between the head clamping plates and the tightness of the fixing strap can be flexibly adjusted, thus quickly adapting to the fixation needs of children of different ages and head circumferences. Fixation of children of different body types can be completed without changing parts, demonstrating strong versatility. At the same time, silicone pads are provided at the contact points between the backrest base, neck pillow block, head clamping plates, and grooves with the child, significantly improving the child's comfort and avoiding skin pressure injuries caused by hard contact.

[0017] Second, this invention uses an electric push rod to drive the head rotation plate, which can conveniently and accurately adjust the tilt angle of the child's head, so that the airway can be fully opened, facilitating surgical operation. The headrest movable block is slidably connected to the head rotation plate through a U-shaped movable block and a sliding groove. When adjusting the head angle, the headrest movable block can adaptively move according to the change in the length of the child's head, which can effectively avoid the strain on the child's neck caused by the change in angle and ensure the safety of the treatment process.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of the present invention; Figure 2 For the present invention Figure 1 First-person side sectional structural diagram; Figure 3 For the present invention Figure 2 Enlarged structural diagram of area A; Figure 4 For the present invention Figure 2 Enlarged structural diagram of region B; Figure 5 For the present invention Figure 2 Enlarged structural diagram of region C; Figure 6 For the present invention Figure 1 Second-view side section structural diagram; Figure 7 For the present invention Figure 6 Enlarged structural diagram of region D; Figure 8 For the present invention Figure 6 Enlarged structural diagram of region E; Figure 9 For the present invention Figure 6 Enlarged structural diagram of region F; Figure 10 For the present invention Figure 6 Enlarged structural diagram of region G; Figure 11 For the present invention Figure 6 Enlarged structural diagram of region H; Figure 12 For the present invention Figure 1 The third-view side section structural diagram.

[0021] Reference numerals: 1. Backrest base; 2. Neck pillow block; 3. Electric push rod; 4. Head rotating plate; 5. Head fixing assembly; 6. Rotating groove; 7. Movable through groove; 8. U-shaped movable block; 9. First silicone pad; 10. Second silicone pad; 11. Mounting groove; 12. Movable through hole; 13. Fixing rod; 14. Third silicone pad; 15. First sliding groove; 16. First slider; 17. Second sliding groove; 18. Second slider; 19. Fourth silicone pad; 20. Operating through hole; 21. Groove; 22. First steel ball; 23. Second steel ball; 50. Headrest movable block; 51. Fixing plate; 52. Spring; 53. Head clamping plate; 54. Fixing strap; 55. Rewinding mechanism; 550. U-shaped frame; 551. Servo motor; 552. Rewinding roller. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] It is important to note that terms such as "first," "second," "symmetric," "array," "set in," and "set with" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0024] In this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the accompanying drawings and specific circumstances.

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-12As shown, this embodiment of the invention provides a head fixation device for bronchoscopic alveolar lavage in children, including a backrest base 1, a neck pillow block 2 integrally formed on the upper surface of the backrest base 1, a rotating groove 6 opened on one side of the backrest base 1, a fixing rod 13 provided on the inner wall of the rotating groove 6, one end of the fixing rod 13 passing through a head rotating plate 4 and rotatably connected by a bearing, an electric push rod 3 is provided on the upper surface of the backrest base 1 and hinged by a pin, the piston rod of the electric push rod 3 is hinged to the lower surface of the head rotating plate 4 by a pin, and a head fixation assembly 5 is slidably connected to the upper surface of the head rotating plate 4.

[0027] In this embodiment, specifically, the head fixing assembly 5 includes a headrest movable block 50, two fixing plates 51, two springs 52, two head clamping plates 53, a fixing strap 54, and a winding mechanism 55. The lower surface of the headrest movable block 50 is slidably connected to the upper surface of the head rotating plate 4, and the upper surface of the headrest movable block 50 has a groove 21. The inner wall of the groove 21 is provided with a fourth silicone pad 19. The upper surface of the headrest movable block 50 has a mounting groove 11 and an operation through hole 20. One side of the fixing strap 54 is located on the inner wall of the mounting groove 11. Both head clamping plates 53 are slidably connected to the upper surface of the headrest movable block 50. The two fixing plates 51 are symmetrically arranged on the upper surface of the headrest movable block 50. The opposing ends of the two springs 52 are located on adjacent sides of the two fixing plates 51, and the adjacent ends of the two springs 52 are located on opposing sides of the two head clamping plates 53. The upper surface of the holding plate 53 has a movable through hole 12. The fixing strap 54 passes through the movable through hole 12 and the operating through hole 20 in sequence. The other side of the fixing strap 54 is set on the winding mechanism 55, which is set on the headrest movable block 50. The winding mechanism 55 is used to wind up the fixing strap 54. When the fixing strap 54 moves in the operating through hole 20, the first steel ball 22 is used to reduce the friction between the fixing strap 54 and the headrest movable block 50. Then the fixing strap 54 moves in the movable through hole 12 on the two head clamping plates 53. The second steel ball 23 is used to reduce the friction between the fixing strap 54 and the head clamping plate 53. The fixing strap 54 continues to tighten, which drives the two head clamping plates 53 to move relative to each other. At the same time, the two head clamping plates 53 are attached to the temporal part of the child's head, and the fixing strap 54 is attached to the forehead of the child's head, so as to quickly fix the child's head. It can be used for children of different ages with different head circumferences.

[0028] In this embodiment, specifically, the winding mechanism 55 includes a U-shaped frame 550, a servo motor 551, and a winding roller 552. The U-shaped frame 550 is disposed on the outer wall of the headrest movable block 50, and the servo motor 551 is disposed on the outer wall of the U-shaped frame 550. The two ends of the winding roller 552 are rotatably connected by bearings. The output shaft of the servo motor 551 passes through the U-shaped frame 550 and is disposed at one end of the winding roller 552. The other side of the fixing belt 54 is disposed on the inner wall of the winding roller 552. By the above arrangement, the servo motor 551 is started, and the output shaft of the servo motor 551 drives the winding roller 552 to rotate. The winding roller 552 winds up and releases the fixing belt 54.

[0029] In this embodiment, specifically, the upper surface of the head rotating plate 4 is symmetrically provided with movable through grooves 7, and the lower surface of the headrest movable block 50 is provided with a U-shaped movable block 8. The U-shaped movable block 8 passes through the movable through groove 7, and the inner bottom wall of the U-shaped movable block 8 is uniformly provided with a second slider 18. The lower surface of the head rotating plate 4 is uniformly provided with a second sliding groove 17, and the outer wall of the second slider 18 is slidably connected to the inner wall of the second sliding groove 17. By the above arrangement, the second slider 18 can be moved in the second sliding groove 17, which can both assist the movement of the U-shaped movable block 8 and stabilize the position of the U-shaped movable block 8. Although the headrest movable block 50 follows the head rotating plate 4 to adjust its angle, the headrest movable block 50 is slidably connected to the head rotating plate 4 through the U-shaped movable block 8. This allows the headrest movable block 50 to move with the length of the child's head while adjusting its angle, thus avoiding strain on the child's head.

[0030] In this embodiment, specifically, the upper surface of the headrest movable block 50 is symmetrically provided with first sliding grooves 15, and the lower surface of the head clamping plate 53 is symmetrically provided with first sliders 16. The outer wall of the first slider 16 is slidably connected to the inner wall of the first sliding groove 15. By the above arrangement, the first slider 16 can slide in the first sliding groove 15, which can not only assist the head clamping plate 53 to move, but also stabilize the position of the head clamping plate 53.

[0031] In this embodiment, specifically, the inner wall of the movable through hole 12 is uniformly provided with second steel balls 23, and the outer wall of the fixing strap 54 is in contact with several second steel balls 23. The above-mentioned arrangement of second steel balls 23 is used to reduce the friction between the fixing strap 54 and the head clamping plate 53.

[0032] In this embodiment, specifically, the inner wall of the operating through hole 20 is uniformly provided with first steel balls 22, and the outer wall of the fixing strap 54 is in contact with several first steel balls 22. The first steel balls 22 are provided to reduce the friction between the fixing strap 54 and the headrest movable block 50.

[0033] In this embodiment, specifically, a first silicone pad 9 is provided on the upper surface of the backrest base 1, and a second silicone pad 10 is provided on the outer wall of the neck pillow block 2. The first silicone pad 9 and the second silicone pad 10 are provided to improve the comfort of children using the product.

[0034] In this embodiment, specifically, a third silicone pad 14 is provided on each of the two adjacent sides of the head clamping plates 53. The third silicone pad 14 is provided to further improve the comfort of children.

[0035] When the invention is in operation: medical staff place the backrest base 1 on the bed, and then the child patient lies on the bed with the backrest base 1 against the backrest base 1 and the child patient's neck against the neck pillow block 2. The first silicone pad 9 and the second silicone pad 10 are used to improve the comfort of the child patient. Then the child patient's head is placed in the groove 21 on the headrest movable block 50, which is used to improve the comfort of the child patient's head.

[0036] Afterwards, the medical staff started the servo motor 551. The output shaft of the servo motor 551 drove the take-up roller 552 to rotate. The take-up roller 552 took up the fixing belt 54. When the fixing belt 54 moved in the operating through hole 20, the first steel ball 22 was used to reduce the friction between the fixing belt 54 and the headrest movable block 50. Then the fixing belt 54 moved in the movable through holes 12 on the two head clamping plates 53. The second steel ball 23 was used to reduce the friction between the fixing belt 54 and the head clamping plate 53. The fixing belt 54 continued to tighten, which drove the two head clamping plates 53 to move relative to each other. At the same time, the two head clamping plates 53 were attached to the temporal part of the child's head, and the fixing belt 54 was attached to the forehead of the child's head, so as to quickly fix the child's head. It can be used for children of different ages with different head circumferences. The third silicone pad 14 is used to further improve the comfort of the child.

[0037] Afterwards, medical staff activate the electric push rod 3. The piston rod of the electric push rod 3 drives the head rotating plate 4 to adjust its angle. The head rotating plate 4 drives the headrest movable block 50 to adjust its angle. The headrest movable block 50, through two head clamping plates 53 and a fixing strap 54, moves the child's head to adjust its angle. At this time, the child's head is fixedly connected to the headrest movable block 50. Although the headrest movable block 50 follows the head rotating plate 4 to adjust its angle, it is slidably connected to the head rotating plate 4 through a U-shaped movable block 8. This allows the headrest movable block 50 to move along the length of the child's head while adjusting its angle, avoiding strain on the child's head. This opens the child's airway, facilitating bronchoscopic alveolar lavage and ensuring that the child's head remains stable, preventing the child's head from moving erratically.

[0038] After the child patient's treatment is completed, the medical staff activates the electric push rod 3 in the reverse direction. The piston rod of the electric push rod 3 drives the head rotating plate 4 to a horizontal position. After the head rotating plate 4 drives the headrest movable block 50 to a horizontal position, the medical staff activates the servo motor 551 to rotate in the reverse direction. The servo motor 551 drives the take-up roller 552 to release the fixing belt 54, so that the fixing belt 54 moves sequentially within the operating through hole 20 and the movable through hole 12. The elastic potential energy of the spring 52 drives the corresponding head clamping plate 53 to reset and move, so that the fixing belt 54 moves away from the child patient's forehead, making it easy to remove the child patient's head. The operation is convenient and has a wide range of applications.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A head fixation device for pediatric bronchoscopic alveolar lavage, comprising a backrest base (1), characterized in that: The upper surface of the backrest base (1) is integrally formed with a neck pillow block (2). A rotating groove (6) is provided on one side of the backrest base (1). A fixing rod (13) is provided on the inner wall of the rotating groove (6). One end of the fixing rod (13) passes through the head rotating plate (4) and is rotatably connected by a bearing. An electric push rod (3) is provided on the upper surface of the backrest base (1) and is hinged by a pin. The piston rod of the electric push rod (3) is hinged to the lower surface of the head rotating plate (4) by a pin. A head fixing assembly (5) is slidably connected to the upper surface of the head rotating plate (4).

2. The head fixation device for pediatric bronchoscopic alveolar lavage according to claim 1, characterized in that: The head-fixing assembly (5) includes a headrest movable block (50), two fixing plates (51), two springs (52), two head clamping plates (53), a fixing strap (54), and a winding mechanism (55), wherein, The lower surface of the headrest movable block (50) is slidably connected to the upper surface of the head rotating plate (4), and the upper surface of the headrest movable block (50) is provided with a groove (21). The upper surface of the headrest movable block (50) is provided with a groove (21), and the inner wall of the groove (21) is provided with a fourth silicone pad (19). The upper surface of the headrest movable block (50) is provided with an installation groove (11) and an operation through hole (20). One side of the fixing strap (54) is disposed on the inner wall of the mounting groove (11), and both head clamping plates (53) are slidably connected to the upper surface of the headrest movable block (50). The two fixing plates (51) are symmetrically arranged on the upper surface of the headrest movable block (50), and the two springs (52) are arranged on the adjacent side of the two fixing plates (51) with one end repulsing each other. One end of each of the two springs (52) is disposed on the opposite side of the two head clamping plates (53), and the upper surface of the head clamping plate (53) is provided with a movable through hole (12). The fixing strap (54) passes through the movable through hole (12) and the operating through hole (20) in sequence, and the other side of the fixing strap (54) is disposed on the winding mechanism (55), which is disposed on the headrest movable block (50).

3. The head fixation device for pediatric bronchoscopic alveolar lavage according to claim 2, characterized in that: The winding mechanism (55) includes a U-shaped frame (550), a servo motor (551), and a winding roller (552), wherein, The U-shaped frame (550) is disposed on the outer wall of the headrest movable block (50), and the servo motor (551) is disposed on the outer wall of the U-shaped frame (550); The two ends of the take-up roller (552) are rotatably connected by bearings. The output shaft of the servo motor (551) passes through the U-shaped frame (550) and is located at one end of the take-up roller (552). The other side of the fixing belt (54) is located on the inner wall of the take-up roller (552).

4. The head fixation device for pediatric bronchoscopic alveolar lavage according to claim 2, characterized in that: The upper surface of the head rotating plate (4) is symmetrically provided with movable through grooves (7), and the lower surface of the headrest movable block (50) is provided with a U-shaped movable block (8). The U-shaped movable block (8) passes through the movable through groove (7). The inner bottom wall of the U-shaped movable block (8) is uniformly provided with a second slider (18). The lower surface of the head rotating plate (4) is uniformly provided with a second sliding groove (17). The outer wall of the second slider (18) is slidably connected to the inner wall of the second sliding groove (17).

5. The head fixation device for pediatric bronchoscopic alveolar lavage according to claim 2, characterized in that: The upper surface of the headrest movable block (50) is symmetrically provided with first sliding grooves (15), and the lower surface of the head clamping plate (53) is symmetrically provided with first sliders (16), the outer wall of the first sliders (16) is slidably connected to the inner wall of the first sliding grooves (15).

6. The head fixation device for pediatric bronchoscopic alveolar lavage according to claim 2, characterized in that: The inner wall of the movable through hole (12) is uniformly provided with second steel balls (23), and the outer wall of the fixing band (54) is in contact with several second steel balls (23).

7. The head fixation device for pediatric bronchoscopic alveolar lavage according to claim 2, characterized in that: The inner wall of the operating through hole (20) is uniformly provided with first steel balls (22), and the outer wall of the fixing band (54) is in contact with several of the first steel balls (22).

8. The head fixation device for pediatric bronchoscopic alveolar lavage according to claim 1, characterized in that: The upper surface of the backrest base (1) is provided with a first silicone pad (9), and the outer wall of the neck pillow block (2) is provided with a second silicone pad (10).

9. The head fixation device for pediatric bronchoscopic alveolar lavage according to claim 2, characterized in that: A third silicone pad (14) is provided on one side of each of the two head clamping plates (53).

Images