Adjustable head fixing bracket

Abstract

The utility model discloses an adjustable head fixing bracket which comprises a headrest table, a head fixing piece, an oval installation frame and a semicircular angle adjusting frame, the head fixing piece comprises an arc-shaped clamping head piece, an installation plate, a radian adjusting piece and a clamping distance adjusting assembly, and the clamping distance adjusting assembly comprises two limiting rods, a distance adjusting lead screw and an adapting cylinder. The two limiting rods movably penetrate through the end of the oval mounting frame, the transfer cylinder is fixed to the middle of the back face of the mounting plate, the distance adjusting lead screw spirally penetrates through the end of the oval mounting frame from the middle of the two limiting rods, one end of the distance adjusting lead screw is rotationally mounted in the transfer cylinder, and a sliding block is fixed to the outer side of the middle of the oval mounting frame. The sliding block is movably installed in the inner side of the semicircular angle adjusting frame. The two head fixing pieces can move on the semicircular angle adjusting frame through the oval installation frame so as to adjust the clamping angle of the head fixing pieces, the head fixing pieces can adapt to clamping of the head in an inclined or side-lying mode, and the arc-shaped head clamping pieces can adjust the inward concave radian so as to adapt to clamping of the heads of different patients.

Description

Technical Field

[0001] The utility model relates to the technical field of neurology head fixing frames, in particular to an adjustable head fixing bracket. Background Art

[0002] When a neurosurgeon performs neurosurgery on a patient's head, it is usually necessary to fix the patient's head to facilitate the neurosurgeon to perform head surgery on the patient. However, the existing head fixation methods generally consist of a fixing plate, a fixing frame, and a head pillow. However, the head can generally only be clamped from both sides of the head, and it is impossible to clamp the head when the head is turned sideways. In particular, when lying on the side, the ears are buckled on the bed board, and clamping is relatively difficult. Therefore, the general head fixing frame cannot adjust the angle of the clamp frame to achieve the purpose of the best clamping effect due to changes in the head angle. For neurology, the head will be examined and operated on from multiple angles, and the clamp frame needs to have a multi-angle adjustment function. Moreover, the curvature of the head clamp is generally not adjustable. The head sizes of different patients are different, and it is impossible to fit the head optimally. Therefore, a device that can adjust the inner curvature of the clamp to adapt to the size of different patients' heads is needed. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one purpose of the utility model is to provide an adjustable head fixing bracket, which solves the problems that the fixing frame for fixing the head cannot adjust the clamping angle, the head that is tilted or lying on its side cannot be clamped or the clamping effect is poor, and the same clamping piece cannot be suitable for clamping the heads of multiple patients.

[0004] The adjustable head fixing bracket according to the utility model comprises a headrest platform, a head fixing part, an elliptical mounting frame and a semicircular angle adjustment frame, wherein the head fixing part is symmetrically arranged on both sides outside the tail end of the headrest platform, and the head fixing part comprises an arc-shaped clamping piece, a mounting plate, an arc adjustment piece and a clamping distance adjustment component, the middle position of the back side of the arc-shaped clamping piece is installed in the middle position of the mounting plate by a mounting rod, the two ends of the mounting plate are respectively connected to the two ends of the back side of the arc-shaped clamping piece by an arc adjustment piece, and the clamping distance adjustment component comprises two limit rods, a distance adjustment screw rod and a transfer cylinder, the two limit rods movably pass through the end of the elliptical mounting frame, the transfer cylinder is fixed at the middle position of the back side of the mounting plate, the distance adjustment screw rod spirally passes through the end of the elliptical mounting frame from the middle of the two limit rods and rotatably installs one end in the transfer cylinder, a slider is fixed on the outside of the middle position of the elliptical mounting frame, the slider is movably installed in the inner side of the semicircular angle adjustment frame, the outer side of the semicircular angle adjustment frame is screwed in the slider through a fixing bolt, and the outer side of the semicircular angle adjustment frame is installed by four support rods.

[0005] In some embodiments of the present invention, the headrest platform is provided with an ear groove at the middle position of the rear end.

[0006] In other embodiments of the present invention, the arc adjustment part includes a side-push screw and a screw barrel, and barrel movable holes are provided at both ends of the mounting plate. The outer side of the middle position of the screw barrel is rotatably installed in the barrel movable hole through two rotating shafts, and the side-push screw spirally penetrates the screw barrel. U-shaped joints are provided on the back of both ends of the arc-shaped chuck plate, and one end of the side-push screw is sleeved with an adapter barrel and is rotatably installed in the U-shaped joint.

[0007] In some other embodiments of the present invention, the arc-shaped clamping head plate includes an elastic steel plate and a soft leather wrapped around the inner side of the elastic steel plate, and a sponge is filled between the soft leather and the elastic steel plate.

[0008] In other embodiments of the present invention, a semicircular T-shaped groove is provided on the inner side of the semicircular angle adjustment frame, a T-shaped base is provided at the bottom of the slider, the T-shaped base is movably arranged in the semicircular T-shaped groove, and a plurality of bolt holes are evenly spaced on the outer side of the semicircular angle adjustment frame and the bolt holes penetrate to the bottom of the semicircular T-shaped groove.

[0009] In other embodiments of the present invention, the centers of the elliptical mounting frame and the semicircular angle adjustment frame are at the same point.

[0010] In the utility model, two head fixing parts can move on the semicircular angle adjustment frame through the elliptical mounting frame to adjust the clamping angle thereof, which can adapt to the clamping of the head in a tilted or side-lying state. Moreover, the arc-shaped clamping head piece can adjust the inner concave curvature to adapt to the clamping of the heads of different patients, so that each type of patient can achieve a better clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 The utility model is a structural schematic diagram of an adjustable head fixing bracket.

[0013] Figure 2 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0014] Figure 3 This is a structural schematic diagram of an adjustable head fixing bracket proposed by the utility model when the head fixing part rotates to a certain angle.

[0015] Figure 4 This is a schematic structural diagram of the side surface of the curvature adjusting member proposed by the utility model.

[0016] Figure 5 The utility model is a side view of an adjustable head fixing bracket when the head is placed on a headrest table.

[0017] Figure 6 This is a structural schematic diagram of the semicircular angle adjustment frame proposed by the utility model.

[0018] Figure 7 This is a schematic cross-sectional structure diagram of the position of the slider proposed by the utility model.

[0019] In the figure: 1. semicircular angle adjustment frame; 11. support rod; 12. fixing bolt; 13. bolt hole; 2. elliptical mounting frame; 3. slider; 31. T-type base; 4. arc-shaped chuck piece; 41. U-shaped joint; 5. mounting plate; 50. cylinder movable hole; 51. pitch adjustment screw; 52. limit rod; 6. arc adjustment part; 61. side push screw; 62. screw cylinder; 621. rotating shaft; 63. adapter cylinder II; 7. headrest platform; 71. ear slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] Reference Figure 1-7, an adjustable head fixing bracket, including a headrest platform 7, a head fixing part, an elliptical mounting frame 2 and a semicircular angle adjustment frame 1, wherein the head fixing part is symmetrically arranged on both sides of the tail end of the headrest platform 7, and the head fixing part includes an arc-shaped clamping piece 4, a mounting plate 5, an arc adjustment piece 6 and a clamping distance adjustment component. The middle position of the back of the arc-shaped clamping piece 4 is installed at the middle position of the mounting plate 5 with a mounting rod, and the two ends of the mounting plate 5 are respectively connected to the two ends of the back of the arc-shaped clamping piece 4 through an arc adjustment piece 6, and the clamping distance adjustment component includes two limit rods 52, a distance adjustment piece 6, and a clamping distance adjustment component. The screw rod 51 and the adapter tube, the two limit rods 52 movably penetrate the end of the elliptical mounting frame 2, the adapter tube is fixed in the middle position on the back of the mounting plate 5, the adjustable pitch screw rod 51 spirally penetrates the end of the elliptical mounting frame 2 from the middle of the two limit rods and rotates one end to be installed in the adapter tube, a slider 3 is fixed to the outside of the middle position of the elliptical mounting frame 2, the slider 3 is movably installed in the inner side of the semicircular angle adjustment frame 1, the outer side of the semicircular angle adjustment frame 1 is screwed into the slider 3 through the fixing bolts 12, and the outer side of the semicircular angle adjustment frame 1 is installed through four support rods 11.

[0023] The head is resting on the headrest platform 7, the head above the ears is exposed outside the headrest platform 7, and the head fixing part is at the outer edge of the headrest platform 7, so that the head fixing part can be rotated without touching the headrest platform 7. When the patient lies with his face facing up, the head fixing part is as shown in FIG. Figure 1 When the patient's head is tilted, use Figure 3 The tilt clamping is shown. According to the size of the patient's head, the arc adjustment member 6 is used to adjust the concave arc of the arc-shaped clamping piece 4, so that it fits the head with the best arc, with a large clamping surface and a good clamping effect. The rotation of the adjustable screw rod 51 can adjust the movement of the mounting plate 5 to fix the head. The slider 3 can slide to any position on the semicircular angle adjustment frame 1 to achieve the required clamping angle, and the fixing bolt 12 is fixed to limit the position.

[0024] The headrest platform 7 is provided with an ear slot 71 at the middle position of the tail end. When lying on one's side or tilting, the ears will be pressed and feel uncomfortable, and the ears are in the ear slot 71, and the ears will not be squeezed.

[0025] The arc adjustment member 6 includes a side push screw 61 and a screw barrel 62. The mounting plate 5 has barrel movable holes 50 at both ends. The outer side of the middle position of the screw barrel 62 is rotatably installed in the barrel movable hole 50 through two rotating shafts 621. The side push screw 61 spirally penetrates the screw barrel 62. U-shaped joints 41 are provided on the back of both ends of the arc chuck piece 4. One end of the side push screw 61 is sleeved with a transfer barrel 63 and is rotatably installed in the U-shaped joint 41.

[0026] The side push screw 61 rotates and moves along the screw tube 62, pushing the two ends of the arc-shaped clamping head piece 4 to move, with different middle positions to form different clamping arcs to adapt to different patients. The screw tube 62 can rotate to adapt to the inclination of the side push screw 61.

[0027] The arc-shaped clamping head piece 4 comprises an elastic steel sheet and a soft leather wrapped around the inner side of the elastic steel sheet, and a sponge is filled between the soft leather and the elastic steel sheet. The elastic steel sheet is easily deformed to form different concave arcs.

[0028] A semicircular T-shaped groove is provided on the inner side of the semicircular angle adjustment frame 1, a T-shaped base 31 is provided at the bottom of the slider 3, and the T-shaped base 31 is movably arranged in the semicircular T-shaped groove. A plurality of bolt holes 13 are evenly spaced on the outer side of the semicircular angle adjustment frame 1, and the bolt holes 13 penetrate to the bottom of the semicircular T-shaped groove.

[0029] The T-shaped base 31 slides in the semicircular T-shaped slot without falling out of the slot, and a fixing bolt is inserted through the bolt hole and screwed into the T-shaped base 31 to fix the T-shaped base 31 .

[0030] The centers of the elliptical mounting frame 2 and the semicircular angle adjustment frame 1 are at the same point, so as to ensure that the rotating head fixing part rotates along the head without displacement.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable head fixing bracket, characterized in that: The invention comprises a headrest platform (7), a head fixing part, an elliptical mounting frame (2) and a semicircular angle adjustment frame (1), wherein the head fixing part is symmetrically arranged on both sides of the rear end of the headrest platform (7), the head fixing part comprises an arc-shaped clamping piece (4), a mounting plate (5), an arc adjustment piece (6) and a clamping distance adjustment component, the middle position of the back side of the arc-shaped clamping piece (4) is mounted on the middle position of the mounting plate (5) by a mounting rod, the two ends of the mounting plate (5) are respectively connected to the two ends of the back side of the arc-shaped clamping piece (4) by an arc adjustment piece (6), the clamping distance adjustment component comprises two limit rods (52), a distance adjustment screw rod (51) and a switching device. The adapter tube is fixed at the middle position of the back of the mounting plate (5); the pitch adjusting screw rod (51) spirally penetrates the end of the elliptical mounting frame (2) from the middle of the two limit rods and one end is rotatably mounted in the adapter tube; a slider (3) is fixed on the outside of the middle position of the elliptical mounting frame (2); the slider (3) is movably mounted on the inside of the semicircular angle adjustment frame (1); the outside of the semicircular angle adjustment frame (1) is screwed into the slider (3) through a fixing bolt (12); and the outside of the semicircular angle adjustment frame (1) is mounted through four support rods (11).

2. The adjustable head fixing bracket according to claim 1, characterized in that: The headrest platform (7) is provided with an ear groove (71) at the middle position of the rear end.

3. The adjustable head fixing bracket according to claim 1, characterized in that: The arc adjustment member (6) comprises a side push screw (61) and a screw barrel (62); barrel movable holes (50) are provided at both ends of the mounting plate (5); the outer side of the middle position of the screw barrel (62) is rotatably mounted in the barrel movable hole (50) via two rotating shafts (621); the side push screw (61) spirally penetrates the screw barrel (62); U-shaped joints (41) are provided on the back sides of both ends of the arc chuck plate (4); one end of the side push screw (61) is sleeved with a second adapter barrel (63) and is rotatably mounted in the U-shaped joint (41).

4. The adjustable head fixing bracket according to claim 1, characterized in that: The arc-shaped clamping head piece (4) comprises an elastic steel sheet and a soft leather wrapped around the inner side of the elastic steel sheet, and a sponge is filled between the soft leather and the elastic steel sheet.

5. The adjustable head fixing bracket according to claim 1, characterized in that: The inner side of the semicircular angle adjustment frame (1) is provided with a semicircular T-shaped slide groove, the bottom of the slider (3) is provided with a T-shaped base (31), the T-shaped base (31) is movably arranged in the semicircular T-shaped slide groove, and the outer side of the semicircular angle adjustment frame (1) is provided with a plurality of bolt holes (13) at equal intervals, and the bolt holes (13) penetrate to the bottom of the semicircular T-shaped slide groove.

6. The adjustable head fixing bracket according to claim 1, characterized in that: The centers of the elliptical mounting frame (2) and the semicircular angle adjustment frame (1) are at the same point.

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