Head fixator

Abstract

The utility model discloses a head fixator, which belongs to the technical field of medical equipment and comprises a bottom rod, bandages are fixedly connected to the side wall of the bottom rod in a bilateral symmetry manner, the ends of the two bandages are connected in an inserted manner through a bandage fixing part, a first driving mechanism is arranged at the top of the bottom rod, and a connecting rod is connected to the top of the first driving mechanism. A second driving mechanism is arranged on the front side of the connecting rod, and the bottom of the second driving mechanism is connected with a fixing cap. Ring blocks are fixedly connected to the bottom of the fixing cap in a bilateral symmetry mode, an elastic bandage is connected between the two ring blocks, and the two ends of the elastic bandage are connected with the two ring blocks through bandage fixing pieces respectively. Through the mode, the first driving mechanism can adjust and fix the front-back tilting angle of the head of the patient, and the second driving mechanism can adjust and fix the left-right rotating angle of the head of the patient, so that the position of the head of the patient is kept stable, medical staff can conveniently and manually treat the patient through a reduction technique, and the treatment effect is improved.

Description

Technical Field

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

[0002] When patients with otolithiasis need treatment and examination, they need to be fixed on a vertigo diagnosis and treatment device in the hospital to perform the resetting movement, but this specialized equipment is expensive. In addition, medical staff can also use manual resetting to treat patients.

[0003] Chinese patent CN208893077U discloses a special otolithiasis reduction chair, comprising a frame and a seat, wherein the seat comprises a seat plate, a backrest and a headrest, a wearing device being provided on the headrest for fixing the patient's head, a connecting plate being provided between the backrest and the headrest, the connecting plate being hinged to the backrest, and the headrest being rotatably connected to the connecting plate. The chair has a simple structure, a small device volume, and low cost, and can be widely used in primary medical units. The reduction chair can be deformed and laid flat into a bed to accommodate the transition between sitting and lying down during the reduction process, and the headrest for supporting the head is arranged to be rotatable left and right and forward and backward, so that the chair can rotate along with the patient's head during reduction. However, the reduction chair still has the following problems:

[0004] When medical staff perform reduction treatment on patients, the reduction chair cannot freely change the rotation or tilt angle of the patient's head, and when the treatment time is long, it is difficult for the patient to keep the head stable, thereby reducing the effect of the reduction treatment.

[0005] Based on this, the present invention designs a head fixator to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a head fixator.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A head fixator comprises a bottom bar, wherein the side walls of the bottom bar are fixedly connected with straps in a bilaterally symmetrical manner, and the ends of the two straps are connected by a strap fixing piece;

[0009] The top of the bottom rod is provided with a first driving mechanism for adjusting the tilt angle of the head forward and backward, the top of the first driving mechanism is connected to a connecting rod, the top front side of the connecting rod is provided with a second driving mechanism for adjusting the left and right rotation angle of the head, and the bottom of the second driving mechanism is connected to a fixing cap;

[0010] The bottom of the fixing cap is fixedly connected with ring blocks in a bilaterally symmetrical manner. An elastic bandage for connecting the fixing cap to the patient's head is connected between the two ring blocks. The two ends of the elastic bandage are respectively connected to the two ring blocks through bandage fixing pieces.

[0011] Furthermore, the first driving mechanism includes a groove, a driving gear, a rotating shaft 1, a rotating block and a locking assembly. A groove is provided at the top of the bottom rod, and the two ends of the rotating shaft 1 are respectively rotatably connected to the inner walls on both sides of the groove, and the left end of the rotating shaft 1 rotates through the side wall of the groove to extend to the outside and is fixedly connected to the rotating block. The driving gear is fixedly sleeved on the outside of the end of the rotating shaft 1 located in the groove, and the two side walls of the driving gear respectively fit and slide with the inner walls on both sides of the groove. The bottom of the connecting rod is inserted into the groove and rotatably connected to the inner wall of the groove, and a locking assembly is provided on the rotating block.

[0012] Furthermore, the locking assembly includes a slot, a latch, a pull ring and a limit block. The left side wall of the bottom rod is provided with multiple slots. The right end of the latch can be inserted into the corresponding slot for plug connection after sliding through the rotating block. The right end of the latch is fixedly connected to the limit block. The left end of the latch is rotatably connected to the pull ring. The right end of the latch is provided with a magnetic core, and the inner wall of the slot is fixedly connected to a magnetic block.

[0013] Furthermore, a tooth block corresponding to the driving gear is provided at the bottom of the connecting rod, and the tooth block is meshed and connected with the driving gear.

[0014] Furthermore, the plurality of slots are distributed in a uniform circular array.

[0015] Furthermore, the second driving mechanism includes a fixed plate, a second rotating shaft, a handle and a fixed assembly. The fixed plate is fixedly connected to the top front end of the connecting rod, and the second rotating shaft is rotatably connected to the fixed plate through a bearing; the top of the second rotating shaft is fixedly connected to the handle, and the bottom of the second rotating shaft is fixedly connected to the top outer side of the fixing cap, and a fixed assembly is provided on the top of the fixed plate.

[0016] Furthermore, the fixing assembly includes a fixed block, a sliding rod, a locking block, a locking gear, a vertical plate and a spring. The top of the connecting rod is fixedly connected to the fixed block, the sliding rod slides through the inside of the fixed block, the locking gear is fixedly connected to the second outer wall of the rotating shaft, and the bottom surface of the locking gear rotates and fits against the top surface of the fixed plate, the locking block is fixedly connected to the front end of the sliding rod, the top of the connecting rod is fixedly connected to the vertical plate, one end of the spring is fixedly connected to the front side wall of the vertical plate, and the other end of the spring is fixedly connected to the rear end of the sliding rod.

[0017] Furthermore, a protrusion corresponding to the locking gear is provided at the front end of the slide rod.

[0018] Furthermore, the strap fixing member adopts a buckle structure.

[0019] Furthermore, the bandage fixing piece adopts a Velcro fixing structure.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The utility model can adjust the tilt angle of the patient's head forward and backward and fix it through the first driving mechanism, and can adjust the left and right rotation angle of the patient's head and fix it through the second driving mechanism, so that the position of the patient's head remains stable, which is convenient for medical staff to manually use reduction techniques to treat the patient, thereby improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0023] Figure 1 A three-dimensional head fixator of the utility model Figure 1 ;

[0024] Figure 2 This is a front view of a head fixator of the present invention;

[0025] Figure 3 A three-dimensional head fixator of the utility model Figure 2 ;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0028] The numbers in the figure represent:

[0029] 10. Bottom bar; 11. Strap; 12. Strap fixing member; 2. First driving mechanism; 21. Groove; 22. Driving gear; 23. Rotating shaft 1; 24. Rotating block; 25. Slot; 26. Latch; 27. Pull ring; 28. Limit block; 3. Connecting rod; 31. Tooth block; 4. Second driving mechanism; 41. Fixed plate; 42. Rotating shaft 2; 43. Handle; 44. Fixing assembly; 441. Fixed block; 442. Sliding rod; 443. Locking block; 444. Locking gear; 445. Vertical plate; 446. Spring; 5. Fixing cap; 51. Elastic bandage; 52. Bandage fixing member; 53. Ring block. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figure 1-Figure 5 A head fixator includes a base bar 10, with straps 11 symmetrically fixed to the sidewalls of the base bar 10. The ends of the two straps 11 are connected by a strap fastener 12; the strap fastener 12 adopts a buckle structure. The ends of the two straps 11 are respectively wrapped around the back of the patient's chest and then connected together using the buckle structure to secure the base bar 10 to the patient.

[0033] A first driving mechanism 2 for adjusting the forward and backward tilt angle of the head is provided at the top of the bottom rod 10. The top of the first driving mechanism 2 is connected to a connecting rod 3. A second driving mechanism 4 for adjusting the left and right rotation angle of the head is provided on the front side of the top of the connecting rod 3. The bottom of the second driving mechanism 4 is connected to a fixing cap 5.

[0034] The bottom of the fixing cap 5 is symmetrically fixed with loops 53. An elastic bandage 51, used to connect the fixing cap 5 to the patient's head, is connected between the two loops 53. The ends of the elastic bandage 51 are connected to the two loops 53 via bandage fasteners 52. The bandage fasteners 52 use a Velcro fastening structure. The fixing cap 5 is secured to the patient's head by wrapping the middle of the elastic bandage 51 around the underside of the chin. The Velcro at the ends of the elastic bandage 51 is then passed through the inside of the corresponding loops 53 and then wrapped back around the Velcro itself, adhering to the Velcro.

[0035] In the present invention, medical staff connect the elastic bandage 51 with the ring block 53 through the bandage fixing piece 52, so that the fixing cap 5 is fixed on the patient's head; the first driving mechanism 2 drives the connecting rod 3 to rotate, and the connecting rod 3 drives the second driving mechanism 4 to drive the fixing cap 5 to rotate, thereby adjusting the left and right rotation angle of the patient's head and fixing it, and the first driving mechanism 2 fixes the tilt angle of the patient's head forward and backward.

[0036] In the present invention, the first driving mechanism 2 can adjust the tilt angle of the patient's head forward and backward and fix it, and the second driving mechanism 4 can adjust the left and right rotation angle of the patient's head and fix it, so that the position of the patient's head remains stable, which is convenient for medical staff to manually use reduction techniques to treat the patient, thereby improving the treatment effect.

[0037] Example 2: In some embodiments, please refer to the accompanying drawings of the specification. Figure 1-Figure 5 The first driving mechanism 2 includes a groove 21, a driving gear 22, a rotating shaft 23, a rotating block 24, a slot 25, a latch 26, a pull ring 27 and a limit block 28. A groove 21 is provided at the top of the bottom rod 10. The two ends of the rotating shaft 23 are respectively rotatably connected to the inner walls on both sides of the groove 21, and the left end of the rotating shaft 23 passes through the groove 21 and rotates through the side walls of the groove 21 to extend to the outside and is fixedly connected to the rotating block 24. The driving gear 22 is fixedly sleeved on the outside of the end of the rotating shaft 23 located in the groove 21, and the two side walls of the driving gear 22 respectively fit and slide with the inner walls on both sides of the groove 21. The bottom of the connecting rod 3 is inserted into the groove 21 and is rotatably connected to the inner wall of the groove 21, and the bottom of the connecting rod 3 is provided with a tooth block 31 corresponding to the driving gear 22, and the tooth block 31 is meshed with the driving gear 22.

[0038] The rotating block 24 is provided with a locking assembly, which includes a slot 25, a latch 26, a pull ring 27, and a limit block 28. The left side wall of the bottom bar 10 is provided with a plurality of slots 25 in a uniform circular array. The slots 25 are distributed in a uniform circular array. The right end of the latch 26 slides through the rotating block 24 and can be inserted into the corresponding slot 25 for plug-in connection. The outer wall of the right end of the latch 26 is fixedly connected to the limit block 28. The left end of the latch 26 is rotatably connected to the pull ring 27. The right end of the latch 26 is provided with a magnetic core, and the inner wall of the slot 25 is fixedly connected to the magnetic block. The outer diameter of the limit block 28 is larger than the diameter of the slot. When the right end of the latch 26 is inserted into the corresponding slot 25, the right wall of the limit block 28 can fit on the left side wall of the bottom bar 10, and the magnetic core and the magnetic block are magnetically connected.

[0039] In the present invention, the medical staff pulls the pull ring 27 to drive the latch 26 to leave the slot 25, and at the same time, the magnetic core at the right end of the latch 26 is away from the magnetic block on the inner wall of the slot 25 and loses magnetic adsorption, thereby releasing the latch 26 from the locking of the rotating block 24; then the rotating block 24 drives the driving gear 22 to rotate, and the driving gear 22 drives the connecting rod 3 to rotate through the tooth block 31, thereby adjusting the tilt angle of the patient's head, and then pushes the pull ring 27 to drive the latch 26 to be inserted into the inside of the slot 25, and the magnetic core at the right end of the latch 26 is fixed by magnetic adsorption to the magnetic block on the inner wall of the slot 25, thereby realizing the locking of the latch 26 to the rotating block 24, and at the same time locking the tilt angle of the patient's head forward and backward.

[0040] In the present invention, the tilt angle of the patient's head is adjusted by rotating the rotating block 24, and the rotating block 24 is fixed by the pin 26 to fix the tilt angle of the patient's head, thereby facilitating medical personnel to manually use the reduction technique to treat the patient.

[0041] Example 3: In some embodiments, please refer to the accompanying drawings of the specification. Figure 1-Figure 5 The second driving mechanism 4 includes a fixed plate 41, a second rotating shaft 42, a handle 43 and a fixing assembly 44. The fixed plate 41 is fixedly connected to the top front end of the connecting rod 3. The second rotating shaft 42 is rotatably connected to the fixed plate 41 through a bearing. The top of the second rotating shaft 42 is fixedly connected to the handle 43. The bottom of the second rotating shaft 42 is fixedly connected to the top outer side of the fixing cap 5. A fixing assembly 44 is provided on the top of the fixed plate 41.

[0042] The fixing assembly 44 includes a fixing block 441, a sliding rod 442, a locking block 443, a locking gear 444, a vertical plate 445 and a spring 446. The top of the connecting rod 3 is fixedly connected to the fixing block 441; the sliding rod 442 slides through the inside of the fixing block 441, the locking gear 444 is fixedly connected to the outer wall of the rotating shaft 42, and the bottom surface of the locking gear 444 rotates to fit the top surface of the fixing plate 41, the locking block 443 is fixedly connected to the front end of the sliding rod 442, and the front end of the sliding rod 442 is provided with a protrusion corresponding to the locking gear 444, the top of the connecting rod 3 is fixedly connected to the vertical plate 445, one end of the spring 446 is fixedly connected to the front side wall of the vertical plate 445, and the other end of the spring 446 is fixedly connected to the rear end of the sliding rod 442.

[0043] In the present invention, the medical staff pulls the slide bar 442 backward, and the slide bar 442 drives the locking block 443 to move backward, so that the protrusion at the front end of the locking block 443 releases the locking gear 444, and the spring 446 is compressed. Then, the handle 43 drives the rotating shaft 42 to drive the locking gear 444 and the fixing cap 5 to rotate, thereby adjusting the left and right rotation angle of the patient's head; then the slide bar 442 is released, the spring 446 is reset and drives the slide bar 442 to move forward, and the slide bar 442 drives the locking block 443 to move forward, so that the protrusion at the front end of the locking block 443 is engaged and fixed with the locking gear 444, thereby locking the left and right rotation angle of the patient's head.

[0044] In the present invention, the left and right rotation angle of the patient's head is adjusted by rotating the handle 43, and the spring 446 drives the slide bar 442 to drive the locking block 443 to engage and fix the locking gear 444, thereby fixing the left and right rotation angle of the patient's head, thereby facilitating medical staff to manually use the reduction technique to treat the patient.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A head fixator comprising a bottom bar (10), characterized in that: The side walls of the bottom rod (10) are fixedly connected with straps (11) in a bilaterally symmetrical manner, and the ends of the two straps (11) are connected via a strap fixing piece (12); The top of the bottom rod (10) is provided with a first driving mechanism (2) for adjusting the tilt angle of the head forward and backward, the top of the first driving mechanism (2) is connected to a connecting rod (3), the front side of the top of the connecting rod (3) is provided with a second driving mechanism (4) for adjusting the left and right rotation angle of the head, and the bottom of the second driving mechanism (4) is connected to a fixing cap (5); The bottom of the fixing cap (5) is fixedly connected to a ring block (53) in a bilaterally symmetrical manner, and an elastic bandage (51) for connecting the fixing cap (5) to the patient's head is connected between the two ring blocks (53), and the two ends of the elastic bandage (51) are respectively connected to the two ring blocks (53) through bandage fixing parts (52).

2. The head restraint according to claim 1, wherein: The first driving mechanism (2) comprises a groove (21), a driving gear (22), a rotating shaft (23), a rotating block (24) and a locking assembly. The top of the bottom rod (10) is provided with a groove (21). The two ends of the rotating shaft (23) are respectively rotatably connected to the inner walls on both sides of the groove (21), and the left end of the rotating shaft (23) rotates through the side wall of the groove (21) and extends to the outside and is fixedly connected to the rotating block (24). The driving gear (22) is fixedly sleeved on the outside of the end of the rotating shaft (23) located in the groove (21), and the two side walls of the driving gear (22) are respectively fitted and slid with the inner walls on both sides of the groove (21). The bottom of the connecting rod (3) is inserted into the groove (21) and is rotatably connected to the inner wall of the groove (21). The rotating block (24) is provided with a locking assembly.

3. The head restraint according to claim 2, wherein: The locking assembly comprises a slot (25), a latch (26), a pull ring (27) and a limit block (28); a plurality of slots (25) are provided on the left side wall of the bottom rod (10); the right end of the latch (26) can be inserted into the corresponding slot (25) for plug-in connection after sliding through the rotating block (24); the outer wall of the right end of the latch (26) is fixedly connected to the limit block (28); the left end of the latch (26) is rotatably connected to the pull ring (27); the right end of the latch (26) is provided with a magnetic core; and the inner wall of the slot (25) is fixedly connected to the magnetic block.

4. The head holder according to claim 3, wherein: A tooth block (31) corresponding to the driving gear (22) is provided at the bottom of the connecting rod (3), and the tooth block (31) is meshedly connected with the driving gear (22).

5. The head holder according to claim 4, wherein: The plurality of slots (25) are distributed in a uniform circular array.

6. The head restraint according to claim 5, wherein: The second driving mechanism (4) comprises a fixed plate (41), a second rotating shaft (42), a handle (43) and a fixed assembly (44); the fixed plate (41) is fixedly connected to the top front end of the connecting rod (3); the second rotating shaft (42) is rotatably connected to the fixed plate (41) through a bearing; the top of the second rotating shaft (42) is fixedly connected to the handle (43); the bottom of the second rotating shaft (42) is fixedly connected to the top outer side of the fixed cap (5); and the top of the fixed plate (41) is provided with a fixed assembly (44).

7. The head restraint according to claim 6, wherein: The fixing assembly (44) includes a fixing block (441), a slide bar (442), a locking block (443), a locking gear (444), a vertical plate (445) and a spring (446). The top of the connecting rod (3) is fixedly connected to the fixing block (441). The slide bar (442) slides through the inside of the fixing block (441). The locking gear (444) is fixedly connected to the outer wall of the second rotating shaft (42). The bottom surface of the locking gear (444) rotates and fits on the top surface of the fixing plate (41). The locking block (443) is fixedly connected to the front end of the slide bar (442). The top of the connecting rod (3) is fixedly connected to the vertical plate (445). One end of the spring (446) is fixedly connected to the front side wall of the vertical plate (445), and the other end of the spring (446) is fixedly connected to the rear end of the slide bar (442).

8. The head restraint according to claim 7, wherein: The front end of the slide rod (442) is provided with a protrusion corresponding to the locking gear (444).

9. The head holder according to claim 8, wherein: The strap fixing piece (12) adopts a buckle structure.

10. The head restraint according to claim 9, wherein: The bandage fixing piece (52) adopts a Velcro fixing structure.

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