CN219940644U

CN219940644U - Head fixer

Info

Publication number: CN219940644U
Application number: CN202321303644.9U
Authority: CN
Inventors: 董文韬
Original assignee: Luoding People's Hospital
Current assignee: Luoding People's Hospital
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-11-03
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses a head fixer, and relates to the technical field of medical appliances. The utility model comprises a plastic shell, wherein eccentric wheels are connected on rotating shafts which are symmetrically connected on the front and back of the lower surface of the plastic shell at equal intervals and are abutted against the lower surface of the plastic shell, and a transmission belt is connected on the outer sides of belt pulleys which are connected on the coaxial sides of the two rotating shafts in a transmission way; the bearing that plastic housing upper surface middle part was connected rotates with the screw rod to be connected, and the bearing that plastic housing upper surface left and right sides was connected rotates with the vertical axis to be connected, and the second gear that the screw rod periphery was connected is connected with the first gear engagement that is connected on the vertical axis, and threaded connection's nut is located the second gear downside on the screw rod, is connected with the rope on the take-up pulley that the vertical axis periphery was connected. The utility model simplifies the working steps of adjusting the distance between the two tightening blocks by arranging the screw, the take-up pulley and the rope, is convenient for quickly fixing and loosening the head of a patient, and reduces the discomfort to a patient when adjusting the height of the plastic shell by arranging the rotating shaft and the eccentric pulley.

Description

Head fixer

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a head fixer.

Background

With the continuous improvement and perfection of medical instruments, it is convenient for medical staff to diagnose diseases of patients, for example: medical staff controls the DSA equipment to detect the head of the patient, provides intracranial information of the patient for the medical staff, and then is convenient for the medical staff to diagnose the head of the patient, in order to avoid inaccurate detection caused by head shaking when the patient detects on the DSA equipment, a head fixer is arranged on the DSA equipment, and then the head of the patient is fixed on the DSA equipment.

After searching, a head fixing device matched with a DSA machine room mattress is disclosed in patent document with a patent publication number of CN215874687U, and comprises a plastic base, wherein a rectangular clamping groove is arranged in the plastic base, and the upper end surface of the plastic base is connected with a plastic supporting rod; the plastic shell is fixed at the upper end of the plastic support rod, and a threaded hole is formed in the side surface of the plastic shell; the plastic shell comprises a plastic shell body, wherein the plastic shell body is provided with a plastic adjusting bolt, a rubber pre-tightening block and a fixing device, the plastic shell body is provided with a plastic adjusting bolt head, and the plastic shell body is provided with a rubber pre-tightening block; the height position of the plastic shell is adjusted by the liftable plastic support rod structure, so that the use comfort of a patient is improved, and chest distress is reduced.

However, the following drawbacks still exist in practical use:

1. in a head fixing device for a DSA machine room mattress kit disclosed in patent publication No. CN215874687U, it is described that: all the components in the head fixing device are made of plastic materials, the plastic materials can not develop under DSA, the head of a patient can be placed in the plastic shell, and the two groups of rubber pre-tightening blocks are inwards rotated through plastic adjusting bolts on two sides to clamp the head of the patient, so that the head of the patient is fixed, the head of the patient is prevented from rotating, the accuracy of inspection is further improved, and the head fixing device is combined with the specification of figure 1: the adjustment of the distance between the two rubber pre-tightening blocks needs to be carried out in steps, so that the time spent in adjusting the distance between the two rubber pre-tightening blocks is increased, the detection efficiency of the patient on DSA equipment is further reduced, and even the optimal treatment time of the patient is missed;

2. in a head fixing device for a DSA machine room mattress kit disclosed in patent publication No. CN215874687U, it is described that: the plastic support rods are symmetrically arranged on the upper end face of the plastic base in pairs, each plastic support rod comprises an outer rod and an inner rod, the outer rods are sleeved outside the inner rods, the outer rods are fixedly connected with the upper end face of the plastic base, the inner rods are fixedly connected with the lower end face of the plastic shell, through holes are formed in the outer rods and the inner rods, and limiting rods are arranged in the through holes; in the actual use process, chest distress problems can be caused by too low head positions of some patients. As shown in the figure, the height position of the plastic shell is further adjusted through the liftable plastic support rod structure, so that the use comfort of a patient is improved, and the chest distress is reduced; as a further preferable embodiment, the limiting rod is of a U-shaped structure, and the rod body of the limiting rod sequentially penetrates through the four groups of plastic supporting rods. As shown in the figure, the limiting rod with a U-shaped structure sequentially penetrates through the through holes of the outer rod and the inner rod in the four groups of plastic supporting rods, so that the four groups of plastic supporting rods are limited in position, the use is convenient, the adjustment is simple, and the following descriptions are combined with figures 1, 2, 3 and 4: the working steps for adjusting the height of the plastic shell are complicated, so that the time spent by a user in adjusting the height of the plastic shell is increased, and the discomfort caused to a patient in adjusting the height of the plastic shell by the user is further increased.

Therefore, a head fixing device for a DSA machine room mattress disclosed in patent publication No. CN215874687U cannot meet the needs in practical use, so there is an urgent need for an improved technology in the market to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a head fixer, which solves the problems of complicated steps for adjusting the distance between rubber pre-tightening blocks and complicated working steps for adjusting the height of a plastic shell in the head fixing device matched with a DSA machine room mattress disclosed in patent document No. CN215874687U by arranging a screw, a wire winding wheel, a rope, a rotating shaft and an eccentric wheel.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a head fixer, which comprises a plastic shell, wherein eccentric wheels are connected on rotating shafts which are symmetrically connected on the front and back of the lower surface of the plastic shell at equal intervals and are abutted against the lower surface of the plastic shell, and the outer sides of belt pulleys which are connected on the coaxial sides of the two rotating shafts are connected with a transmission belt in a transmission way; the bearing that plastic housing upper surface middle part was connected rotates with the screw rod to be connected, and the bearing that plastic housing upper surface left and right sides was connected rotates with the vertical axis to be connected, and the second gear that the screw rod periphery was connected is connected with the first gear engagement that is connected on the vertical axis, and threaded connection's nut is located the second gear downside on the screw rod, is connected with the rope on the take-up pulley that the vertical axis periphery was connected.

Further, the upper surface of the lug seat connected with the periphery of the rotating shaft is connected to the corner of the lower surface of the plastic shell, and the base connected with the outer surface of the motor connected with the end part of the rotating shaft is connected to the side wall of the rectangular plate.

Further, the upper surface of a first spring sleeved on a movable shaft movably connected inside a hollow shaft connected with four corners of the upper surface of the rectangular plate is connected with the corners of the lower surface of the plastic shell, and the upper surface of the movable shaft is connected with the lower surface of the plastic shell.

Further, the lower U-shaped baffle seats connected with the upper surface of the rectangular plate are positioned at the left side and the right side of the eccentric wheel, and the upper U-shaped baffle seats connected with the lower surface of the plastic shell correspond to the lower U-shaped baffle seats.

Further, the upper inner side wall and the lower inner side wall of the plastic base connected with the lower surface of the rectangular plate are connected with convex strips at equal intervals.

Further, the left side wall and the right side wall of the plastic shell are movably connected with U-shaped shafts, the rear side of the inner end face of each U-shaped shaft is connected with a rope in a fastening mode, and the inner side wall of a tightening block connected with the front side of the inner end face of each U-shaped shaft is connected with a rubber top pad.

Further, the rectangular block connected to the U-shaped shaft is connected with the outer end part of the second spring which is sleeved and connected with the U-shaped shaft in a front-back symmetrical mode, and the inner end part of the second spring is abutted with the outer side wall of the plastic shell.

Further, a connecting shaft connected with the middle part of the inner surface of the rectangular block penetrates through the plastic shell and is connected with the outer side wall of the tightening block.

Further, the upper surface of the plastic shell is sequentially connected with a rubber support pad and a vertical partition plate from front to back.

The utility model has the following beneficial effects:

1. according to the utility model, the working steps of adjusting the distance between the two tightening blocks by a user are simplified by arranging the screw, the take-up pulley and the rope, so that the time spent by the user in adjusting the distance between the two tightening blocks is reduced, the user can conveniently and quickly adjust the two tightening blocks to lock the head of a patient on the plastic shell, the detection efficiency of the head of the patient on DSA equipment is improved, and the problem of complicated steps of adjusting the distance between the rubber tightening blocks in the head fixing device matched with the DSA machine room mattress disclosed in patent document with patent publication number CN215874687U is solved.

2. The utility model simplifies the working steps of adjusting the height of the plastic shell by a user through arranging the rotating shaft and the eccentric wheel, thereby reducing the time spent by the user when adjusting the height of the plastic shell according to the actual needs of the patient, further reducing the discomfort caused to the patient when the user adjusts the height of the plastic shell, and further solving the problem of complicated working steps of adjusting the height of the plastic shell of the head fixing device matched with the DSA machine room mattress disclosed in patent document with the patent publication number of CN 215874687U.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a head holder;

FIG. 2 is a schematic perspective view of a head holder;

FIG. 3 is a perspective view of a head holder;

fig. 4 is an enlarged schematic view of the structure a in fig. 3.

In the drawings, the list of components represented by the various numbers is as follows:

1. a plastic base; 11. a convex strip; 2. a rectangular plate; 21. a lower U-shaped baffle seat; 3. a hollow shaft; 31. a movable shaft; 32. a first spring; 4. a plastic housing; 41. a rubber support pad; 42. a vertical partition board; 43. the upper U-shaped baffle seat; 5. a U-shaped shaft; 51. a tightening block; 52. a rubber top pad; 53. rectangular blocks; 54. a nut; 55. a vertical axis; 56. a first gear; 57. a rope; 58. a wire winding wheel; 59. a screw; 510. a second gear; 511. a second spring; 512. a connecting shaft; 6. an eccentric wheel; 61. a motor; 62. a base; 63. a rotating shaft; 64. an ear seat; 65. a belt pulley; 66. a driving belt.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1 to 4, the present utility model is a head fixer, which comprises a plastic housing 4, wherein eccentric wheels 6 are equidistantly connected to rotating shafts 63 symmetrically connected front and back on the lower surface of the plastic housing 4, and are abutted against the lower surface of the plastic housing 4, and a driving belt 66 is connected to the outer side of a belt pulley 65 coaxially connected to the two rotating shafts 63 in a driving manner; the bearing connected in the middle of the upper surface of the plastic shell 4 is rotationally connected with a screw 59, the bearing connected left and right of the upper surface of the plastic shell 4 is rotationally connected with a vertical shaft 55, a second gear 510 connected with the periphery of the screw 59 is meshed with a first gear 56 connected with the vertical shaft 55, a nut 54 in threaded connection with the screw 59 is positioned at the lower side of the second gear 510, and a rope 57 is connected with a take-up pulley 58 connected with the periphery of the vertical shaft 55;

the head holder is used as follows: the user locks and connects the head fixer on the DSA equipment through the plastic base 1, the external power supply and the external control end are communicated, the patient places the head on the upper surface of the rubber supporting pad 41 on the plastic shell 4, the user rotates the screw 59 clockwise, the second gear 510 rotates clockwise, the first gear 56 rotates clockwise, the vertical shaft 55 rotates clockwise, the take-up pulley 58 rotates clockwise to wind the rope 57, the two propping blocks 51 move in opposite directions, and the shouting head is gradually locked on the plastic shell 4; conversely, the two tightening blocks 51 gradually loosen the patient's head; the user starts the motor 61, the rotating shafts 63 rotate, the belt pulley 65 rotates, the driving belt 66 works, the eccentric wheels 6 on the two rotating shafts 63 rotate in the same direction by taking the rotating shafts 63 as shafts, the distance between the plastic shell 4 and the rectangular plate is adjusted, the height of the plastic shell 4 is adjusted, and the height of the head of a patient is adjusted.

As shown in fig. 1, 3 and 4, the upper surface of an ear seat 64 connected with the periphery of a rotating shaft 63 is connected to the corner of the lower surface of the plastic shell 4, and a stand 62 connected with the outer surface of a motor 61 connected with the end part of the rotating shaft 63 is connected to the side wall of the rectangular plate 2;

the upper surface of a first spring 32 sleeved on a movable shaft 31 movably connected inside a hollow shaft 3 connected with four corners of the upper surface of a rectangular plate 2 is connected with the corners of the lower surface of a plastic shell 4, and the upper surface of the movable shaft 31 is connected with the lower surface of the plastic shell 4;

the lower U-shaped baffle seat 21 connected with the upper surface of the rectangular plate 2 is positioned at the left side and the right side of the eccentric wheel 6, and the upper U-shaped baffle seat 43 connected with the lower surface of the plastic shell 4 corresponds to the lower U-shaped baffle seat 21 in position;

the user starts the motor 61 using the external control end, the rotating shaft 63 rotates, the eccentric wheel 6 moves in an arc with the rotating shaft 63 as the shaft, and the eccentric wheel 6 moves in an arc along the upper U-shaped blocking seat 43 and the lower U-shaped blocking seat 21, at the same time, the movable shaft 31 moves up or down in the hollow shaft 3, when the movable shaft 31 moves up, the first spring 32 stretches, and when the movable shaft 31 moves down, the first spring 32 contracts.

As shown in fig. 2, protruding strips 11 are connected to the upper and lower inner side walls of the plastic base 1 connected to the lower surface of the rectangular plate 2 at equal intervals; the user clamps the plastic base 1 to the DSA apparatus, locks the plastic base 1 to the DSA apparatus using an external bolt, and locks the head holder to the DSA apparatus.

As shown in fig. 1 and 2, the left and right side walls of the plastic shell 4 are movably connected with a U-shaped shaft 5, the rear side of the inner end surface of the U-shaped shaft 5 is connected with a rope 57 in a fastening way, and the inner side wall of a propping block 51 connected with the front side of the inner end surface of the U-shaped shaft 5 is connected with a rubber top pad 52;

when the rope 57 column is to be wound, the two U-shaped shafts 5 move in opposite directions, the two jacking blocks 51 move in opposite directions, and the two rubber jacking pads 52 move in opposite directions; conversely, the two rubber roof pads 52 move back;

the rectangular block 53 connected to the U-shaped shaft 5 is connected with the outer end part of the second spring 511 symmetrically sleeved on the front and back of the U-shaped shaft 5, and the inner end part of the second spring 511 is abutted with the outer side wall of the plastic shell 4;

when the two U-shaped shafts 5 move in opposite directions, the two rectangular blocks 53 move in opposite directions, and the second spring 511 gradually contracts; conversely, the contracted second spring 511 gradually expands;

a connecting shaft 512 connected with the middle part of the inner surface of the rectangular block 53 penetrates through the plastic shell 4 and is connected with the outer side wall of the propping block 51;

when the two rectangular blocks 53 move in opposite directions, the two connecting shafts 512 move in opposite directions, and the two tightening blocks 51 move in opposite directions, i.e. the two tightening blocks 51 gradually fix the head of the patient; conversely, the two tightening blocks 51 progressively loosen the patient's head;

the upper surface of the plastic shell 4 is sequentially connected with a rubber support pad 41 and a vertical partition plate 42 from front to back; the patient places the head on the upper surface of the rubber pad 41, avoiding the direct contact between the plastic housing 4 and the patient's head, and further improving the comfort of the patient when the patient performs head detection.

The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.

Claims

1. A head holder comprising a plastic housing (4), characterized in that: an eccentric wheel (6) is connected with the rotating shaft (63) symmetrically connected on the front and back of the lower surface of the plastic shell (4) at equal intervals and is abutted against the lower surface of the plastic shell (4), and a transmission belt (66) is connected with the outer sides of belt pulleys (65) connected on the coaxial sides of the two rotating shafts (63);

the bearing that plastic housing (4) upper surface middle part is connected rotates with screw rod (59) and is connected, the bearing that plastic housing (4) upper surface left and right sides is connected rotates with vertical axis (55) and is connected, second gear (510) that screw rod (59) periphery is connected meshes with first gear (56) that are connected on vertical axis (55) and is connected, threaded connection's nut (54) are located second gear (510) downside on screw rod (59), be connected with rope (57) on take-up pulley (58) that vertical axis (55) periphery is connected.

2. A head holder as defined in claim 1, wherein: the upper surface of an ear seat (64) connected with the periphery of the rotating shaft (63) is connected to the corner of the lower surface of the plastic shell (4), and a stand (62) connected with the outer surface of a motor (61) connected with the end part of the rotating shaft (63) is connected to the side wall of the rectangular plate (2).

3. A head holder as defined in claim 2, wherein: the upper surface of a first spring (32) sleeved on a movable shaft (31) movably connected inside a hollow shaft (3) connected with four corners of the upper surface of the rectangular plate (2) is connected with the corners of the lower surface of the plastic shell (4), and the upper surface of the movable shaft (31) is connected with the lower surface of the plastic shell (4).

4. A head holder according to claim 3, wherein: the lower U-shaped baffle seat (21) connected with the upper surface of the rectangular plate (2) is positioned at the left side and the right side of the eccentric wheel (6), and the upper U-shaped baffle seat (43) connected with the lower surface of the plastic shell (4) corresponds to the lower U-shaped baffle seat (21) in position.

5. A head holder as defined in claim 4, wherein: the upper inner side wall and the lower inner side wall of the plastic base (1) connected with the lower surface of the rectangular plate (2) are connected with convex strips (11) at equal intervals.

6. A head holder as defined in claim 1, wherein: the left side wall and the right side wall of the plastic shell (4) are movably connected with a U-shaped shaft (5), the rear side of the inner end surface of the U-shaped shaft (5) is connected with a rope (57) in a fastening mode, and the inner side wall of a jacking block (51) connected with the front side of the inner end surface of the U-shaped shaft (5) is connected with a rubber top pad (52).

7. A head holder as defined in claim 6, wherein: rectangular blocks (53) connected to the U-shaped shaft (5) are connected with the outer ends of second springs (511) symmetrically sleeved on the U-shaped shaft (5), and the inner ends of the second springs (511) are abutted to the outer side wall of the plastic shell (4).

8. A head holder as defined in claim 7, wherein: a connecting shaft (512) connected with the middle part of the inner surface of the rectangular block (53) penetrates through the plastic shell (4) and is connected with the outer side wall of the jacking block (51).

9. A head holder as defined in claim 8, wherein: the upper surface of the plastic shell (4) is sequentially connected with a rubber supporting pad (41) and a vertical partition plate (42) from front to back.