Head positioning device

Abstract

The utility model provides a head positioning device which comprises a positioning base, two symmetrically-distributed connecting plates are arranged on the outer side of the positioning base, a fixing base is arranged at the bottom of the positioning base, an adjusting mechanism facilitating use of the positioning base is arranged in the positioning base, and the adjusting mechanism comprises a winding wheel. The winding wheel is arranged in a cavity formed in the positioning base, a positioning belt is arranged on the outer surface of the winding wheel, and the end, extending out of the cavity, of the positioning belt is fixedly connected with the outer wall of one side of the connecting plate. The head positioning device solves the problems that when an existing positioning device is used, due to the fact that a main body support of the head positioning device is integrally arranged, using of the main body support of the head positioning device has certain limitation, and when the diameters of the heads of patients are different, the head positioning device cannot be used. The head positioning device solves the problem that a main body support of the head positioning device is inconvenient to use by patients with different head diameters, so that the positioning device is not wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of head positioning, in particular to a head positioning device. Background Art

[0002] At present, during vitreous surgery, the patient's head needs to be fixed. The vitreous is the tissue of the human eyeball. It is a colorless, transparent colloid. The vitreous is located behind the lens and fills the space between the lens and the retina. It has the functions of refraction and fixing the retina.

[0003] Authorization announcement number: CN215132579U discloses a head positioning device for vitreous surgery. When the patient lies down and fixes his head, the positioning device can rotate the first rotation limit shaft to make the observation cylinder rod act on the vitreous body, thereby reducing the patient's tension caused by seeing various instruments, and avoiding the problem that when the existing head fixing device for vitreous surgery is fixed, the human eye can directly see the mechanical instruments, making the patient more nervous, thereby increasing the risk during the operation.

[0004] However, when the positioning device is in use, the main support of the head positioning device is integrated, so the use of the main support of the head positioning device has certain limitations. When the diameters of the patients' heads are different, the main support of the head positioning device is not convenient for use on patients with different head diameters, so that the application scope of the positioning device is not wide enough. Therefore, it is necessary to provide a new head positioning device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a head positioning device which is convenient for use on patients with different head diameters.

[0006] The head positioning device provided by the utility model comprises a positioning base, wherein two symmetrically distributed connecting plates are arranged on the outer side of the positioning base, a fixing seat is arranged at the bottom of the positioning base, and an adjusting mechanism is arranged inside the positioning base for facilitating the use of the positioning base.

[0007] In order to achieve the effect of facilitating use for patients with different head diameters, the utility model provides a head positioning device, preferably, the adjustment mechanism includes a winding wheel, the winding wheel is arranged inside a cavity opened by the positioning base, a positioning belt is arranged on the outer surface of the winding wheel, one end of the positioning belt extends out of the cavity and is fixedly connected to an outer wall of one side of a connecting plate, the positioning base is movably connected to the outer wall of the positioning belt via a through hole opened therein, a rotating shaft is arranged inside the winding wheel, and one end of the rotating shaft extends out of the positioning base and is fixedly connected to a rotating plate.

[0008] In order to achieve the effect of normal rotation of the rotating shaft in the positioning base, the utility model provides a head positioning device. Preferably, a bearing seat is fixed to the outer wall of one side of the positioning base, the other end of the rotating shaft passes through the positioning base and extends to the inside of the bearing seat, and one end of the rotating shaft is rotatably connected to the inside of the bearing seat.

[0009] In order to prevent the winding wheel from rotating randomly, the utility model provides a head positioning device. Preferably, a limiting rod is provided on the outer surface of the positioning base, and a pull cover is fixedly connected to one end of the limiting rod. A fixing ring is provided on the outside of the positioning base and on the outside of the limiting rod. The positioning base is plugged into and matched with the outer wall of the limiting rod through an opening. A plurality of limiting grooves are rotationally distributed on the outer surface of the winding wheel. The limiting rod extends out of the outer wall of the opening and is movably connected to the inner wall of the limiting groove.

[0010] In order to achieve the effect of limiting the use of the limit rod, the utility model provides a head positioning device. Preferably, two movable grooves are opened inside the limit rod, and a spring is arranged inside the movable groove. Extrusion plates are fixed at both ends of the spring, and the other end of the extrusion plate is fixedly connected to a fixing rod. The fixing rod extends out of the outer wall of the movable groove and is movably connected to the inner wall of the fixing hole inside the fixing ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The head positioning device adopts an adjustment mechanism. By pulling the connecting plate, the positioning belt can be pulled out of the chamber and placed on both sides of the patient's head, and the two connecting plates are adhered together by magic tape. Then, the winding wheel in the chamber is rotated to adjust the tightness of the positioning belt. By adjusting the positioning belt, the positioning device can be used for patients with different head diameters, so as to improve the practicality of the positioning device and solve the problem that when the existing positioning device is used, the main bracket of the head positioning device has certain limitations due to the integrated setting of the main bracket of the head positioning device. When the patient's head diameter is different, the main bracket of the head positioning device is not convenient to use for patients with different head diameters, so that the positioning device has a limited scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a preferred embodiment of the head positioning device provided by the utility model;

[0014] Figure 2 This is a top view of the positioning base structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0016] Figure 4 This is a schematic diagram of the connection between the limit rod and the winding wheel of the utility model.

[0017] Among them: 1. Positioning base; 101. Winding wheel; 102. Chamber; 103. Positioning belt; 104. Through hole; 105. Rotating shaft; 106. Rotating plate; 107. Bearing seat; 108. Limit rod; 109. Pull cover; 110. Fixed ring; 111. Plug hole; 112. Limit groove; 113. Movable groove; 114. Spring; 115. Extrusion plate; 116. Fixed rod; 117. Fixed hole; 2. Connecting plate; 3. Fixed seat. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A schematic structural diagram of a preferred embodiment of the head positioning device provided by the utility model; Figure 2 This is a top view of the positioning base structure of the utility model; Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0020] Figure 4 A head positioning device comprises a positioning base 1, two symmetrically distributed connecting plates 2 are arranged outside the positioning base 1, a fixing base 3 is arranged at the bottom of the positioning base 1, and an adjustment mechanism is arranged inside the positioning base 1 for facilitating the use of the positioning base 1.

[0021] Reference Figure 1 and Figure 2 The adjusting mechanism includes a winding wheel 101, which is arranged inside a chamber 102 opened by the positioning base 1, and a positioning belt 103 is arranged on the outer surface of the winding wheel 101, and one end of the positioning belt 103 extends out of the chamber 102 and is fixedly connected to the outer wall of one side of the connecting plate 2, and the positioning base 1 is movably connected to the outer wall of the positioning belt 103 through the through hole 104 opened, and a rotating shaft 105 is arranged inside the winding wheel 101, and one end of the rotating shaft 105 extends out of the positioning base 1 and is fixedly connected to a rotating plate 106, and a bearing seat 107 is fixed to the outer wall of one side of the positioning base 1, and the other end of the rotating shaft 105 penetrates the positioning base 1 and extends to the inside of the bearing seat 107, and one end of the rotating shaft 105 is rotatably connected to the inside of the bearing seat 107.

[0022] Through the above technical solution, the positioning belt 103 can be pulled out of the chamber 102 by pulling the connecting plate 2 and placed on both sides of the patient's head, and the two connecting plates 2 are adhered together by the Velcro, and then the rotating plate 106 on the outside of the positioning base 1 is rotated, and the rotating shaft 105 and the winding wheel 101 are driven to rotate by the rotating plate 106, and the positioning belt 103 can be wound up by the winding wheel 101, so that the tightness of the positioning belt 103 can be adjusted, so that the positioning belt 103 is suitable for patients with different head diameters, thereby improving the practicality of the positioning device.

[0023] Reference Figure 2 and Figure 4 A limiting rod 108 is provided on the outer surface of the positioning base 1, and a pull cover 109 is fixedly connected to one end of the limiting rod 108. A fixing ring 110 is sleeved on the outer side of the positioning base 1 and located on the outer side of the limiting rod 108. The positioning base 1 is plugged and matched with the outer wall of the limiting rod 108 through the opened insertion hole 111. A plurality of rotationally distributed limiting grooves 112 are opened on the outer surface of the winding wheel 101. The limiting rod 108 extends out of the outer wall of the insertion hole 111 and is movably connected with the inner wall of the limiting groove 112. After the winding wheel 101 rotates, the pull cover 109 is pressed to extend the bottom end of the limiting rod 108 into the limiting groove 112 opened on the outer surface of the winding wheel 101. Through the cooperation of the limiting rod 108 and the limiting groove 112, the winding wheel 101 can be limited and fixed to prevent the winding wheel 101 from rotating at will.

[0024] Reference Figure 2 , Figure 3 and Figure 4 The limiting rod 108 has two movable grooves 113 inside, and a spring 114 is arranged inside the movable groove 113. The two ends of the spring 114 are fixed with an extrusion plate 115, and the other end of the extrusion plate 115 is fixedly connected with a fixing rod 116. The fixing rod 116 extends out of the outer wall of the movable groove 113 and is movably connected to the inner wall of the fixing hole 117 inside the fixing ring 110. When the limiting rod 108 limits the winding wheel 101, the two fixing rods 116 on the outer top of the limiting rod 108 are pressed by the spring. The function of 114 is to enter the fixing hole 117, and the fixing rod 116 cooperates with the fixing hole 117 to prevent the limit rod 108 from separating from the limit groove 112. When the limit rod 108 does not need to limit the winding wheel 101, the two fixing rods 116 at the bottom outer side of the limit rod 108 enter the fixing hole 117, and the limit rod 108 is limited by the fixing rod 116 and the fixing hole 117 to prevent the limit rod 108 from affecting the normal rotation of the winding wheel 101.

[0025] The implementation principle of a head positioning device of an embodiment of the utility model is: by adopting an adjustment mechanism, the connecting plate 2 can be pulled to pull the positioning belt 103 out of the cavity 102 and placed on both sides of the patient's head, and the two connecting plates 2 are adhered together by magic tape, and then the rotating plate 106 on the outside of the positioning base 1 is rotated, and the rotating shaft 105 and the winding wheel 101 are driven to rotate by the rotating plate 106, and the positioning belt 103 can be wound up by the winding wheel 101, so that the tightness of the positioning belt 103 can be adjusted, so that the positioning belt 103 is suitable for patients with different head diameters, thereby improving the practicality of the positioning device.

[0026] The standard parts used in the utility model can all be purchased from the market, special-shaped parts can be customized according to the description in the specification and the drawings, the specific connection methods of each part all adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A head positioning device, characterized in that: It comprises a positioning base (1), wherein two symmetrically distributed connecting plates (2) are arranged on the outside of the positioning base (1), a fixing base (3) is arranged on the bottom of the positioning base (1), and an adjustment mechanism is arranged inside the positioning base (1) for facilitating the use of the positioning base (1); The adjustment mechanism comprises a winding wheel (101), the winding wheel (101) is arranged inside a chamber (102) opened by a positioning base (1), a positioning belt (103) is arranged on the outer surface of the winding wheel (101), one end of the positioning belt (103) extending out of the chamber (102) is fixedly connected to the outer wall of one side of the connecting plate (2), the positioning base (1) is movably connected to the outer wall of the positioning belt (103) via a through hole (104) opened therein, a rotating shaft (105) is arranged inside the winding wheel (101), and one end of the rotating shaft (105) extending out of the positioning base (1) is fixedly connected to a rotating plate (106).

2. A head positioning device according to claim 1, characterized in that: A bearing seat (107) is fixed to an outer wall of one side of the positioning base (1), the other end of the rotating shaft (105) passes through the positioning base (1) and extends to the inside of the bearing seat (107), and one end of the rotating shaft (105) is rotatably connected to the inside of the bearing seat (107).

3. A head positioning device according to claim 1, characterized in that: A limiting rod (108) is arranged on the outer surface of the positioning base (1), one end of the limiting rod (108) is fixedly connected with a pull cover (109), a fixing ring (110) is sleeved on the outer side of the positioning base (1) and located on the outer side of the limiting rod (108), the positioning base (1) is plugged into and matched with the outer wall of the limiting rod (108) through an opening (111), a plurality of rotationally distributed limiting grooves (112) are arranged on the outer surface of the winding wheel (101), and the limiting rod (108) extends out of the outer wall of the opening (111) and is movably connected with the inner wall of the limiting groove (112).

4. A head positioning device according to claim 3, characterized in that: Two movable grooves (113) are provided inside the limiting rod (108), and a spring (114) is arranged inside the movable groove (113). Extrusion plates (115) are fixed at both ends of the spring (114), and the other end of the extrusion plate (115) is fixedly connected to a fixing rod (116). The fixing rod (116) extends out of the outer wall of the movable groove (113) and is movably connected to the inner wall of the fixing hole (117) inside the fixing ring (110).

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