Fixed headrest

Abstract

The utility model relates to a fixed headrest. The fixed headrest comprises a headrest body and a fixing structure, a head space is arranged in an attaching area of the headrest body, and the head space is a groove and used for containing the head of the human body to limit rotation of the head of the human body; the headrest is further provided with a through hand containing space, and the hand containing space is used for containing the arms of the human body. The fixing structure is assembled on the headrest and used for being fixedly connected with the containing platform. According to the fixed headrest, the head space formed in the attaching area of the headrest can tightly wrap the head placed laterally, the action of the head is restrained through physical limiting, and a doctor can operate the ears on one side conveniently. The through-type hand placing space allows the two arms of the patient to surround the headrest, so that the activity range of the upper body is limited, and the action risk of the patient is reduced through psychological safety. The detachable fixing structure realizes stable connection between the fixed headrest and the placing platform, ensures that the headrest is absolutely static during operation, and can flexibly store and release the space in a non-use state.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a fixed headrest. BACKGROUND

[0002] The ear, as the core organ for human body to perceive external information and maintain balance, contains precise structures such as tympanic membrane, auditory ossicles and cochlea inside. Any treatment operation requires high precision. In current clinical practice, the diagnosis and treatment of ear diseases such as otitis media and inner ear diseases usually requires the patient to take a lateral decubitus position with the affected ear facing up to ensure clear exposure of the surgical field. The traditional body position fixing method is for the patient to lie prone on the treatment table, with the head laterally deflected and resting on the flexed upper arm, and the head position is maintained by the muscle tension of the upper limb.

[0003] This body position fixing method has inherent defects: first, the patient needs to maintain the posture of supporting the head with the unilateral upper limb for a long time, which is easy to cause muscle fatigue and limb numbness, and the head may shake due to unconscious body position adjustment during the treatment; second, the contact area between the upper limb and the table surface is limited, and it is difficult to form a stable support structure, when the physician performs instrument operation, slight external force transmission can cause the head to move; third, individual differences (such as body size, muscle strength) of patients result in uneven ability to maintain body position. The above problems may cause treatment operation errors, affect the treatment effect, and even increase the risk of instrument injury.

[0004] For example, cerumen removal is a common operation in ear-nose-throat-ophthalmic and neck surgery, in addition to the elderly and adults, children are also the main group. Cerumen, commonly known as "earwax", is the normal secretion of ceruminous glands in the cartilaginous part of the external auditory canal, which is yellow-white and flaky after drying, and has a protective effect. When the temporomandibular joint moves, cerumen can be discharged automatically. If the ceruminous glands secrete too much and the discharge is blocked, the cerumen will accumulate in the external auditory canal and mix with the entering dust and other foreign matters to form a mass, which is as hard as stone or as soft as jujube mud, forming a cerumen plug, blocking the ear canal and affecting hearing; if the external auditory canal epithelium is damaged or water enters, the cerumen will swell, causing infection, pain, dizziness and other symptoms.

[0005] It is more common in children, mainly because the ear canal of children is curved and narrow, and cerumen is not easy to discharge. In addition, children often have water, dust and foreign matter entering the ear canal during play, which cannot be removed in time, eventually forming a cerumen plug. The cerumen plug pressing on the tympanic membrane can also cause ear pain, tinnitus and even dizziness. It is particularly important to seek medical treatment in hospital, and the physician can remove it through professional instruments such as cerumen hook, middle ear forceps and suction device, or under the direct vision of a hard ear endoscope. The psychological characteristics of young children determine that some children resist when the cerumen is removed, and twisting the body and suddenly standing up can easily injure the external auditory canal or tympanic membrane, increasing the risk of further injury and increasing the medical cost, time cost and psychological burden of children and their parents. CONTENT OF THE UTILITY MODEL

[0006] Therefore, it is necessary to provide a fixed headrest to solve the above problems.

[0007] A fixed headrest comprises:

[0008] The headrest is provided with a head space in a fitting area of the headrest, the head space is configured as a groove, and the head space is used for accommodating a human head to limit rotation of the human head; the headrest is further provided with a through hand placing space, and the hand placing space is used for placing an arm of the human body;

[0009] The fixing structure is assembled to the headrest, and is used for fixedly connecting with the placing platform.

[0010] In one of the embodiments, along the height direction of the headrest, the head space is arranged above the hand placing space;

[0011] The head space is further provided with an ear space; the ear space is configured as a groove, or the ear space is communicated with the head space and the hand placing space.

[0012] In one of the embodiments, the fixed headrest further comprises a reinforcing belt, the reinforcing belt is assembled to the headrest, and the reinforcing belt is used for pressing and fitting the human head in the head space;

[0013] The reinforcing belt is provided with an ear exposing hole, and the ear exposing hole is used for penetrating the human ear to expose the human ear.

[0014] In one of the embodiments, the reinforcing belt comprises a first belt body and a second belt body, the first belt body and the second belt body are respectively assembled to two sides of the headrest, a part of the first belt body away from the headrest is provided with a first connecting structure, a part of the second belt body away from the headrest is provided with a second connecting structure, and the first connecting structure is connected with the second connecting structure to connect and cooperate the first belt body and the second belt body.

[0015] At least one of the first belt body and the second belt body is provided with the ear exposing hole.

[0016] In one of the embodiments, the fixing structure comprises a locking assembly, the locking assembly comprises a locking support and a locking shaft, the locking shaft is rotatably assembled to the locking support, and the locking shaft is used for abutting against the placing platform.

[0017] In one of the embodiments, the fixing structure further comprises a first base and a second base, the first base is rotatably assembled to the second base, the headrest is assembled to one side of the first base away from the second base, and the locking assembly is assembled to the second base.

[0018] In one of the embodiments, the fixing structure further comprises a rotating bearing and a locking pin, and the rotating bearing is assembled between the first base and the second base.

[0019] The first base is provided with a through hole, the second base is provided with at least two butt joints, the at least two butt joints are arranged along the circumferential direction of the rotating bearing and along the thickness direction of the fixing structure, the through hole is adapted to communicate coaxially with each butt joint, and the locking pin is assembled in the through hole and adapted to extend into the corresponding butt joint.

[0020] In one of the embodiments, the through hole is configured as a counterbore.

[0021] The locking pin comprises a countersunk head and a pin body, the pin body is fixedly connected to one end of the countersunk head, and the countersunk head is adapted to abut against the abutting surface of the through hole.

[0022] In one of the embodiments, the locking pin comprises a pin shaft body and a pulling piece, the pulling piece is arranged at one end of the pin shaft body along the axial direction of the pin shaft body.

[0023] In one of the embodiments, one end of the pin shaft body is provided with an assembly space, the assembly space comprises a first subspace and a second subspace, the orthographic projection of the second subspace coincides with the orthographic projection of the first subspace along the axial direction of the pin shaft body, and the orthographic projection of the second subspace is smaller than the orthographic projection of the first subspace, so that a limiting mesa is formed in the assembly space.

[0024] The pulling piece is rotatably assembled in the pin shaft body, the pulling piece has a storage state and a pulling state, when the pulling piece is in the storage state, the pulling piece is located in the first subspace and abuts against the limiting mesa, and when the pulling piece is in the pulling state, part of the structure of the pulling piece is located outside the assembly space.

[0025] The above fixing headrest realizes the stable fixation and comfortable support of the patient's head in the medical scene. The head space formed in the fitting area of the headrest can tightly wrap the laterally placed human head, and effectively inhibit the rotation of the head through physical limiting. The through-type hand space allows the patient to embrace the headrest with both hands, which not only realizes the fixation of both arms to limit the activity range of the upper body, but also enhances the psychological safety through body contact, and double protection reduces the risk of patient movement during treatment. The fixing structure adopts a detachable design, which can not only ensure the absolute stillness of the headrest during operation through stable connection with the placement platform, but also release space in the non-use state, taking into account functionality and practicality. Therefore, the fixing headrest according to the present application not only improves the convenience of medical operation, but also significantly reduces the probability of accidents. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a perspective view of the fixing headrest according to an embodiment of the present application.

[0027] Figure 2 It is a perspective view of the fixing headrest according to another embodiment of the present application.

[0028] Figure 3 It is a perspective view of the fixing headrest according to still another embodiment of the present application.

[0029] Figure 4 A schematic view of a fixed headrest in a state of being fixed to a placement platform according to another embodiment of the present application.

[0030] Figure 5 A sectional view of a fixing structure according to an embodiment of the present application.

[0031] Figure 6 A Figure 5 An enlarged view at A in the middle.

[0032] Reference signs:

[0033] 100, fixed headrest; 1, headrest; 10, fitting area; 101, head space; 102, hand placing space; 103, ear space; 2, fixing structure; 21, locking assembly; 211, locking bracket; 212, locking shaft; 22, first base; 220, through hole; 2200, abutting surface; 23, second base; 230, abutting hole; 24, rotating bearing; 241, inner ring piece; 242, outer ring piece; 25, locking pin; 251, pin shaft body; 2511, countersunk head; 2510, fitting space; 250a, first sub-space; 250b, second sub-space; 250c, limiting table top; 2512, pin body; 252, pulling piece; 3, reinforcing belt; 31, first belt body; 32, second belt body; 3a, first connecting structure; 3b, second connecting structure; 3c, ear exposing hole; 200, placement platform. DETAILED DESCRIPTION

[0034] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in conjunction with the drawings. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or implicating the number of indicated technical features. Thus, a feature defined with "first" or "second" can include at least one of the features, explicitly or implicitly. In the description of the present application, the term "plurality" means at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection", "fixing" and the like should be interpreted in a broad sense. For example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" of the first feature to the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0039] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0040] Reference Figures 1 to 3As shown, the fixed headrest 100 according to some embodiments of the present application comprises a headrest 1 and a fixing structure 2. The headrest 1 is provided with a head space 101 in the fitting area 10, and the head space 101 is configured as a groove for accommodating the human head to limit the rotation of the human head. It can also be understood that the specific shape of the head space 101 can be designed according to the shape of the human head, and when the head is placed in the head space 101 in a lateral direction (i.e., one ear is towards the head space 101 and the other ear is towards the outside), the head is fitted with the fitting area 10 of the headrest 1, so that the headrest 1 plays a fixed role for the head, avoiding the action of the head (such as head rotation and the like).

[0041] Due to the good fixing effect of the headrest 1 on the head, the head action of the patient is effectively avoided during the examination and treatment of the ear towards the outside by the physician, which not only facilitates the operation of the physician, but also reduces the probability of medical accidents. And the headrest 1 has good support for the head of the patient, and the patient is more comfortable during the examination and treatment.

[0042] The headrest 1 is also provided with a through hand space 102, and the patient's hands can be respectively inserted into the hand space 102 from the two side openings of the hand space 102, i.e., the patient's hands are in a state of holding the headrest 1. And since the patient's hands are located in the hand space 102, the headrest 1 can achieve the effect of fixing the patient's arms. Since the headrest 1 plays a fixed role for the patient's arms, it limits the range of motion of the patient's upper body to further avoid the patient's head action. In addition, when the patient's hands hold the headrest 1, the patient's sense of security is improved from a psychological point of view, which can further avoid the patient's head action.

[0043] The fixing structure 2 is assembled to the headrest 1, and the fixing structure 2 is used for fixed connection with a placement platform 200 (which can also be understood as a treatment platform). When the fixing structure 2 is fixedly connected with the placement platform 200, the effect of fixedly assembling the fixed headrest 100 to the placement platform 200 is achieved, so that the headrest 1 cannot move relative to the placement platform 200. In this way, the movement of the headrest 1 during the operation of the physician is avoided, thereby avoiding the movement of the patient's head (due to the movement of the headrest 1 driving the displacement of the patient's head). In addition, if the patient has a large action reaction, since the headrest 1 has a certain limitation on the patient's upper body, the risk of the patient's head action is reduced. When the fixing structure 2 is disengaged from the fixed connection with the placement platform 200, the fixed headrest 100 can be detached from the placement platform 200, avoiding the use of the use space of the placement platform 200 when the fixed headrest 100 is not in use.

[0044] In summary, the fixed headrest 100 according to this application achieves stable fixation and comfortable support for the patient's head in medical settings. The head space 101 formed within the contact area 10 of the headrest 1 tightly wraps around the side-positioned head, effectively inhibiting head rotation through physical restraint. The through-type handrest space 102 allows the patient to wrap their arms around the headrest 1, both fixing the arms and limiting the range of motion of the upper body, and enhancing psychological safety through limb contact, thus reducing the risk of patient movement during treatment. The fixing structure 2 adopts a detachable design, ensuring the absolute stillness of the headrest 1 during operation through a stable connection with the placement platform 200, and freeing up space when not in use, balancing functionality and practicality. Therefore, the fixed headrest 100 according to this application significantly reduces the probability of accidents while improving the convenience of medical operations.

[0045] See Figures 1 to 3 As shown, in some embodiments of this application, along the height direction of the headrest 1 (e.g.) Figures 1 to 3 As shown in the Z-direction, the head space 101 is positioned above the hand placement space 102. When the patient's arm is placed in the hand placement space 102, the patient's arm can also provide support for the head pillow 1 in the height direction, preventing the head pillow 1 from collapsing excessively due to the weight of the head. At the same time, the head pillow 1 exerts a certain amount of pressure on the patient's arm under the action of the head, causing the peripheral wall of the hand placement space 102 to fit tightly against the patient's arm, thereby further achieving the effect of fixing the patient's arms with the head pillow 1. Of course, in some other embodiments of this application, the structure of the head pillow 1 itself can also have a certain degree of stability, that is, the head pillow 1 will not deform when the patient's head is placed on the head pillow 1.

[0046] See Figures 1 to 3 As shown, in some embodiments of this application, a concave ear space 103 is also provided within the head space 101. The ear space 103 is used to accommodate the patient's ear facing the side of the head space 101, so as to avoid the headrest 1 from compressing the ear and improving the patient's comfort. In one embodiment, the ear space 103 is constructed as a groove; or in another embodiment, the ear space 103 connects the head space 101 and the hand resting space 102. Since the ear space 103 connects between the head space 101 and the hand resting space 102, the head space 101 and the ear space 103 have good breathability. It should be understood that when the patient's head rests in the head space 101, gas can flow from the head space 101 along the ear space 103 to the hand resting space 102 and out of the hand resting space 102.

[0047] See Figure 2 and Figure 3As shown in some embodiments of the present application, the fixed headrest 100 can further comprise a reinforcing belt 3, which is assembled to the headrest 1, and is used to press the patient's head against the head space 101, i.e. to further fix the patient's head through the reinforcing belt 3, so as to further avoid the movement of the patient's head. The reinforcing belt 3 is provided with an ear hole 3c, which is used to pass through the patient's ear (i.e. the ear of the patient who needs to be treated by the doctor), so as to expose the patient's ear, thereby facilitating the operation of the doctor.

[0048] Referring to Figure 2 and Figure 3 As shown in some embodiments of the present application, the reinforcing belt 3 can comprise a first belt body 31 and a second belt body 32, which are respectively assembled to the two sides of the headrest 1 along the width direction of the headrest 1. Along the extension direction of the first belt body 31, the portion of the first belt body 31 away from the headrest 1 is provided with a first connecting structure 3a, and along the extension direction of the second belt body 32, the portion of the second belt body 32 away from the headrest 1 is provided with a second connecting structure 3b, which is connected and matched through the first connecting structure 3a and the second connecting structure 3b, thereby realizing the connection effect of the first belt body 31 and the second belt body 32, so that the reinforcing belt 3 can be used to fix the patient's head.

[0049] As Figure 2 and Figure 3 shown in some embodiments of the present application, the first connecting structure 3a is configured as a plurality of through holes, and the second connecting structure 3b is configured as a needle buckle type fastener, and the needle of the needle buckle type fastener is passed through the through hole, so as to realize the connection effect of the first belt body 31 and the second belt body 32. It should be noted that in some embodiments of the present application, the first connecting structure 3a is configured as a plurality of through holes, and the second connecting structure 3b is configured as a needle buckle type fastener, but the present application is not limited thereto. In some other embodiments of the present application, for example, the first connecting structure 3a and the second connecting structure 3b are magic tape, magnetic attraction buckle structure, buckle type structure, button type lock buckle and the like. Thus, by providing the first connecting structure 3a on the first belt body 31 and the second connecting structure 3b on the second belt body 32, and connecting and matching the first connecting structure 3a and the second connecting structure 3b, the first belt body 31 and the second belt body 32 can be connected and separated. In addition, in some embodiments of the present application, the first belt body 31 can also be provided with the first connecting structure 3a, and the second belt body 32 can also be provided with the second connecting structure 3b, and the doctor can use the binding method to connect the first belt body 31 and the second belt body 32.

[0050] In some embodiments, at least one of the first strap 31 and the second strap 32 is provided with an ear-exposed hole 3c. It can also be understood that one of the first strap 31 or the second strap 32 is provided with an ear-exposed hole 3c, or both the first strap 31 and the second strap 32 are respectively provided with an ear-exposed hole 3c.

[0051] In some embodiments described above, the reinforcing band 3 includes the first strap 31 and the second strap 32, i.e., the reinforcing band 3 is of a split structure, but the present application is not limited thereto. In other embodiments of the present application, the reinforcing band 3 can also be of a unitary structure, and preferably, the reinforcing band 3 is made of an elastic material, so that the reinforcing band 3 can be adapted to patients with different head circumferences.

[0052] Referring to Figures 1 to 3 In some embodiments of the present application, the fixing structure 2 includes a locking assembly 21, and the locking assembly 21 includes a locking bracket 211 and a locking shaft 212, the locking shaft 212 being rotatably assembled in the locking bracket 211, and the locking shaft 212 being used to abut against the placement platform 200, so as to achieve the effect of fixedly connecting the fixing structure 2 with the placement platform 200, and further achieve the effect of fixedly assembling the fixed headrest 100 on the placement platform 200.

[0053] For example, referring to Figure 1 In an embodiment of the present application, the locking bracket 211 can be configured as a right-angle plate member, wherein the locking bracket 211 can include a first plate member and a second plate member, the first plate member being fixedly connected with the headrest 1 and extending along the height direction of the fixed headrest 100 (e.g., the Z direction shown in Figure 1 In an embodiment of the present application, the locking bracket 211 can be configured as a right-angle plate member, wherein the locking bracket 211 can include a first plate member and a second plate member, the first plate member being fixedly connected with the headrest 1 and extending along the height direction of the fixed headrest 100 (e.g., the Z direction shown in

[0054] In the process of assembling the fixed headrest 100 on the placement platform 200, the clinician can make the flange of the placement platform 200 located in the space formed between the headrest 1 and the second plate member, and then rotate the locking shaft 212, so as to make the locking shaft 212 move along its own axis towards the flange of the placement platform 200, and then abut and fix the locking shaft 212 against the flange of the placement platform 200, so as to achieve the effect of fixedly connecting the fixing structure 2 with the placement platform 200, i.e., achieve the effect of fixedly assembling the fixed headrest 100 on the placement platform 200. When it is needed to disassemble the fixed headrest 100 from the placement platform 200, the locking shaft 212 can be rotated, so as to make the locking shaft 212 move away from the flange of the placement platform 200 along its own axis.

[0055] Referring to Figures 1 to 3 As shown in the drawings, in some embodiments of the present application, the fixing structure 2 comprises a locking assembly 21, wherein the locking assembly 21 comprises a locking bracket 211 and a locking shaft 212, but the present application is not limited thereto. In other embodiments of the present application, the fixing structure 2 can also be other structures, for example, the fixing structure 2 can generate negative pressure, so that the fixing structure 2 generates negative pressure to achieve the effect of being adsorbed and fixed on the placement platform 200.

[0056] Referring to Figures 3 to 5 As shown in the drawings, in some embodiments of the present application, the fixing structure 2 can further comprise a first base 22 and a second base 23, the first base 22 is rotatably assembled to the second base 23, and the headrest 1 is assembled to the side of the first base 22 away from the second base 23, and the locking assembly 21 is assembled to the second base 23. The locking assembly 21 is used to achieve the effect of fixing the headrest 100 to be fixedly assembled to the placement platform 200, and by driving the first base 22 to rotate relative to the second base 23, the effect of changing the orientation of the fitting area 10 can be achieved. Therefore, according to the fixed headrest 100 of the present application, the orientation of the fitting area 10 of the fixed headrest 100 is adjusted in the state of being fixedly assembled to the placement platform 200. That is, the effect of adjusting the orientation of the fitting area 10 can be achieved without changing the position of the fixed headrest 100 assembled to the placement platform 200.

[0057] For example, in one embodiment, the placement platform 200 has a table surface in the shape of a quadrilateral, and only one edge of the table surface of the placement platform 200 is a flange (i.e., the edge protruding outward). And the locking assembly 21 comprises a locking bracket 211 and a locking shaft 212. Therefore, when the fixed headrest 100 is to be fixedly assembled to the placement platform 200, the assembly position of the fixed headrest 100 is limited by the placement platform 200. Since the fixing structure 2 according to the present application comprises the first base 22 and the second base 23 which are rotatably assembled, the orientation of the fitting area 10 is changed by rotating the first base 22 to achieve the orientation change of the fitting area 10 of the headrest 1, so that the orientation of the fitting area 10 will not be single due to the limitation of the assembly position of the fixed headrest 100. Since the orientation of the fitting area 10 can be adjusted, the position where the fixed headrest 100 can be fixedly assembled is limited, which is beneficial to expand the use scenario of the fixed headrest 100 and improve the utilization rate of the fixed headrest 100.

[0058] In combination with Figures 3 to 6As shown, in some embodiments of the present application, the fixing structure 2 can further comprise a rotating bearing 24 and a locking pin 25. The rotating bearing 24 is assembled between the first base 22 and the second base 23, so as to achieve the effect that the first base 22 and the second base 23 are fixedly connected and can rotate relative to each other. The first base 22 is provided with a through hole 220, the second base 23 is provided with at least two butt joints 230, the at least two butt joints 230 are arranged along the circumferential direction of the rotating bearing 24, and along the thickness direction (such as the Z direction shown in the figure) of the fixing structure 2, the through hole 220 is adapted to communicate coaxially with each butt joint 230, and the locking pin 25 is assembled in the through hole 220 and is adapted to extend into the corresponding butt joint 230. When the locking pin 25 extends into the corresponding through hole 220 and butt joint 230 in sequence, the effect that the first base 22 and the second base 23 are locked and fixed is achieved. That is, the first base 22 and the second base 23 cannot rotate relative to each other. Figure 5

[0059] For example, in some embodiments of the present application, the rotating bearing 24 comprises an inner ring member 241 and an outer ring member 242, the outer ring member 242 is sleeved on the inner ring member 241, and the inner ring member 241 and the outer ring member 242 can rotate relative to each other. One of the inner ring member 241 and the outer ring member 242 is fixedly assembled on the first base 22, and the other of the inner ring member 241 and the outer ring member 242 is fixedly assembled on the second base 23, so as to achieve the effect that the first base 22 and the second base 23 can rotate relative to each other. For example, refer to Figure 5 As shown, in one embodiment of the present application, the inner ring member 241 is fixedly assembled on the first base 22, and the outer ring member 242 is fixedly assembled on the second base 23.

[0060] In addition, the plurality of butt joints 230 provided on the second base 23 are arranged along the circumferential direction of the rotating bearing 24, and during the rotation of the first base 22 and the second base 23, the through hole 220 provided on the first base 22 is adapted to communicate coaxially with each butt joint 230 in sequence along the thickness direction of the fixing structure 2. In this way, during the use of the headrest 100, the doctor can adjust the orientation of the fitting area 10 of the headrest 1 to the required orientation according to the use requirement, and then the doctor extends the locking pin 25 into the butt joint 230 which communicates coaxially with the through hole 220 in this state, so as to achieve the effect that the first base 22 is locked to the second base 23, so that the first base 22 cannot rotate relative to the second base 23, that is, the effect that the orientation of the fitting area 10 is locked is achieved.

[0061] For example, refer to Figure 6 ​In some embodiments of the present application, the through hole 220 is configured as a counterbore. The locking pin 25 includes a counterbore 2511 and a pin body 2512 fixedly connected to one end of the counterbore 2511. The counterbore 2511 is adapted to abut against the abutting surface 2200 of the through hole 220, thereby avoiding the locking pin 25 from moving out of the through hole 220. In this way, the docking hole 230 can be configured as a through hole of the second base 23. Compared with the through hole configured as a counterbore, the docking hole 230 configured as a through hole can avoid the problem of dust accumulation, thereby reducing the difficulty of cleaning the fixing structure 2.

[0062] Referring to Figure 6 In some embodiments of the present application, the locking pin 25 includes a pin shaft body 251 and a pulling member 252. The pulling member 252 is disposed at one end of the pin shaft body 251 along the axial direction of the pin shaft body 251. In this way, the locking pin 25 can be grabbed by the pulling member 252, so as to facilitate the physician to insert and pull out the pin shaft body 251 from the docking hole 230. For example, in an embodiment of the present application, the pin shaft body 251 includes a counterbore 2511 and a pin body 2512. The counterbore 2511 is fixedly connected to one end of the pin body 2512 along the axial direction of the pin body 2512. The pulling member 252 is disposed on the side of the counterbore 2511 away from the pin body 2512 along the axial direction of the counterbore 2511.

[0063] Referring to Figure 6 In some embodiments of the present application, one end of the pin shaft body 251 is provided with an assembly space 2510. The assembly space 2510 includes a first subspace 250a and a second subspace 250b. The orthographic projection of the second subspace 250b coincides with the orthographic projection of the first subspace 250a along the axial direction of the pin shaft body 251. The orthographic projection of the second subspace 250b is smaller than the orthographic projection of the first subspace 250a, so as to form a limiting mesa 250c in the assembly space 2510. The pulling member 252 is rotatably assembled in the assembly space 2510. The pulling member 252 has a storage state and a pulling state. When the pulling member 252 is in the storage state, the pulling member 252 is located in the first subspace 250a and abuts against the limiting mesa 250c. When the pulling member 252 is in the pulling state, part of the structure of the pulling member 252 is located outside the assembly space 2510.

[0064] For example, referring to Figure 6As shown, in one embodiment of the present application, along the axial direction of the counter sunk head 2511, the counter sunk head 2511 is provided with an assembly space 2510 at the end away from the pin body 2512. Furthermore, along the axial direction of the counter sunk head 2511, the first sub-space 250a is located at the side of the second sub-space 250b away from the pin body 2512, and the second sub-space 250b and the first sub-space 250a are in a communication state in the axial direction of the counter sunk head 2511. In addition, due to the orthographic projection of the second sub-space 250b being smaller than the orthographic projection of the first sub-space 250a, a limiting mesa 250c is formed in the assembly space 2510. Due to the communication state between the second sub-space 250b and the first sub-space 250a, the physician's finger can be inserted into the second sub-space 250b from the first sub-space 250a to adjust the puller 252 from the storage state to the pulling state. When the puller 252 is in the pulling state, the puller 252 protrudes from the end surface of the counter sunk head 2511 away from the pin body 2512 in the axial direction of the counter sunk head 2511, which facilitates the physician to grasp the puller 252.

[0065] In addition, in combination with Figure 3 and Figure 6 As shown, when the puller 252 is in the storage state, the puller 252 does not protrude from the end surface of the counter sunk head 2511 away from the pin body 2512 in the axial direction of the counter sunk head 2511. Thus, when the patient places the arm in the hand placement space 102, the puller 252 avoids pressing the patient's arm, thereby improving the patient's comfort.

[0066] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0067] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A fixed headrest, characterized in that, include: The headrest has a head space within its contact area. The head space is constructed as a groove and is used to accommodate a human head to restrict its rotation. The headrest also has a through hand space for placing a human arm. A fixing structure is assembled to the headrest and is used to fix it to the placement platform.

2. The fixed headrest according to claim 1, characterized in that, Along the height direction of the headrest, the head space is positioned above the hand space; The head space also includes an ear space; the ear space is constructed as a groove, or the ear space connects the head space and the hand space.

3. The fixed headrest according to claim 1, characterized in that, Also includes: A reinforcing strap is fitted to the headrest and is used to press the human head against the head space. The reinforcing strip is provided with an ear exposure hole, which is used to pass through the human ear to expose the human ear.

4. The fixed headrest according to claim 3, characterized in that, The reinforcing strap includes a first strap body and a second strap body. The first strap body and the second strap body are respectively assembled on both sides of the headrest. The portion of the first strap body away from the headrest is provided with a first connecting structure, and the portion of the second strap body away from the headrest is provided with a second connecting structure. The first connecting structure is connected to the second connecting structure so that the first strap body and the second strap body are connected and cooperated. At least one of the first strap and the second strap is provided with the ear exposure hole.

5. The fixed headrest according to any one of claims 1 to 4, characterized in that, The fixing structure includes a locking assembly, which includes a locking bracket and a locking shaft. The locking shaft is rotatably mounted on the locking bracket and is used to abut against the placement platform.

6. The fixed headrest according to claim 5, characterized in that, The fixing structure further includes: a first base and a second base, the first base being rotatably mounted on the second base, and the headrest being mounted on the side of the first base opposite to the second base, and the locking assembly being mounted on the second base.

7. The fixed headrest according to claim 6, characterized in that, The fixing structure further includes: a rotating bearing and a locking pin, wherein the rotating bearing is assembled between the first base and the second base; The first base is provided with a through hole, and the second base is provided with at least two mating holes. The at least two mating holes are arranged along the circumference of the rotating bearing and along the thickness direction of the fixed structure. The through hole is adapted to coaxially communicate with each of the mating holes. The locking pin is assembled in the through hole and adapted to extend into the corresponding mating hole.

8. The fixed headrest according to claim 7, characterized in that, The through hole is a countersunk hole; The locking pin includes a countersunk head and a pin body, the pin body being fixedly connected to one end of the countersunk head, and the countersunk head being adapted to abut against the contact surface of the through hole.

9. The fixed headrest according to claim 7, characterized in that, The locking pin includes a pin body and a lifting member, and the lifting member is disposed at one end of the pin body along the axial direction of the pin body.

10. The fixed headrest according to claim 9, characterized in that, One end of the main body of the pin is provided with an assembly space, which includes a first subspace and a second subspace. Along the axial direction of the main body of the pin, the orthographic projection of the second subspace coincides with the orthographic projection of the first subspace, and the orthographic projection of the second subspace is smaller than the orthographic projection of the first subspace, so that a limiting platform is formed in the assembly space. The lifting component is rotatably assembled to the main body of the pin shaft. The lifting component has a stored state and a lifted state. When the lifting component is in the stored state, it is located in the first subspace and abuts against the limiting platform. When the lifting component is in the lifted state, part of the lifting component structure is located outside the assembly space.

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