CN217853026U

CN217853026U - Head fixing device for CT scanning

Info

Publication number: CN217853026U
Application number: CN202221756823.3U
Authority: CN
Inventors: 肖忠华; 赵明
Original assignee: Jinan Yana Information Technology Co ltd
Current assignee: Jinan Yana Information Technology Co ltd
Priority date: 2022-07-09
Filing date: 2022-07-09
Publication date: 2022-11-22
Anticipated expiration: 2032-07-09

Abstract

The utility model discloses a head fixing device for CT scanning, which comprises a base arranged on the table surface of a CT machine and a head support used for positioning and fixing the head of a patient, wherein the upper end surface of the head support is provided with a positioning groove, an arc-shaped cushion directly contacted with the head of the patient is arranged in the positioning groove, an automatic positioning mechanism is arranged between the arc-shaped cushion and the positioning groove, the inner side of the arc-shaped cushion and the contact surface of the head of the patient are provided with a plurality of mounting grooves, air bags are arranged in the mounting grooves, the upper end surface of the head support is provided with a detachably connected arc-shaped head hoop mechanism, the upper end surface of the base is symmetrically provided with two groups of lower jaw support mechanisms by the central line of the head support, and the lower jaw support mechanisms are connected with the base in a sliding way; the head support and the automatic positioning mechanism are designed to realize automatic positioning and centering of the head of the patient, external operation is not needed, the preparation time before CT scanning is shortened, and the preparation efficiency of CT scanning is improved; the arc-shaped head hoop mechanism and the lower jaw support mechanism can prevent the head of a patient from shaking.

Description

Head fixing device for CT scanning

Technical Field

The utility model belongs to the technical direction of check out test set, concretely relates to head fixing device is used in CT scanning.

Background

Along with the continuous promotion of science and technology, the CT scanning is widely applied to the medical diagnosis in-process, when CT scans patient head, avoid the patient to rock at scanning in-process head in order to guarantee the precision of scanning, need fix a position patient's head, but use head fixing device at present and need artifical adjustment patient's head position, make patient's head be located the central line position of CT platform, adjustment process is consuming time longer, the preparation time is longer, there is fixed not firm condition simultaneously, the patient is in case rocked in the CT scanning process, will influence the precision of scanning, and the head fixing device who uses at present and patient head contact site are harder, influence the travelling comfort of use, this phenomenon becomes the problem that the skilled person waits to solve urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to current device head fixing device for CT scanning to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a head fixing device for CT scanning, holds in the palm including the head that is used for installing the base on CT board table and is used for the fixed patient head in location, the head holds in the palm and fixes the up end of base, the up end that the head held in the palm is provided with the constant head tank, and the left and right sides of constant head tank extends to on the lateral wall that the head held in the palm, is provided with the direct arc cushion with patient head contact in the constant head tank, is provided with automatic positioning mechanism between arc cushion and the constant head tank, is provided with a plurality of mounting grooves on the inboard of arc cushion and the patient head contact surface, is provided with the gasbag in the mounting groove, and the up end that the head held in the palm is provided with to dismantle and is connected with arc head hoop mechanism, and arc head hoop mechanism sets up with arc cushion cooperation, the up end of base is provided with the central line symmetry that the head held in the palm, and lower jaw holds in the palm mechanism and base sliding connection, can dismantle between two sets of lower jaw support mechanism and be connected.

It is right to further explain the utility model discloses, automatic positioning mechanism includes guide post, guide block, flexible subassembly and expanding spring, the bottom of guide post is fixed along the slant direction on the lateral wall of constant head tank, the guide block is fixed on the lateral wall of arc cushion, the guide post passes the guide block, and guide block and guide post sliding connection, can follow the gliding flexible subassembly of arc cushion length direction and be provided with the multiunit, the top setting of flexible subassembly is in the bottom of arc cushion, and the bottom of constant head tank is provided with a plurality of mounting holes, and the bottom of expanding spring is fixed in the mounting hole, and expanding spring cup joints in the outside of expanding assembly, and expanding spring's top is fixed at the top of expanding assembly, and expanding spring's bottom mounting is in the mounting hole.

Furthermore, flexible subassembly includes slide pipe and slide bar, slide pipe sliding connection in the outside of slide bar, the top sliding connection of slide pipe is in the bottom of arc type cushion, the bottom of slide bar is fixed in the mounting hole.

It is right to further explain the utility model discloses it is further explained that arc type head hoop mechanism includes arc type hoop, arc type pole, T type connecting block and locking Assembly, the both ends of arc type hoop are provided with the slide opening respectively along its length direction, the arc type pole is provided with two sets ofly, and is two sets of arc type pole sliding connection is in the slide opening respectively, T type connecting block is provided with two sets ofly, and T type connecting block rotates the bottom of connecting at the arc type pole, be provided with T type groove on the lateral wall of head rest, T type connecting block is pegged graft in the T type groove.

Furthermore, the locking assembly comprises a locking spring, a locking block, a shell and a lifting block, wherein the locking spring and the locking block are located in the shell, the shell is fixed on the upper end face of the arc-shaped hoop, a plurality of positioning holes are formed in the arc-shaped rod, one end of the locking block is inserted into one of the positioning holes after penetrating through the arc-shaped hoop, the other end of the locking block is provided with a connecting rod, the locking spring is sleeved on the connecting rod, one end of the locking spring is fixed in the shell, the other end of the locking spring is fixed at the other end of the locking block, and one end of the lifting block is fixed at one end of the connecting rod after penetrating through the shell.

It is right that the utility model discloses it is further explicated that, the lower jaw holds in the palm the mechanism and includes compression spring, guide bar, slider, pivot, side lever and holds in the palm the shell, base up end symmetry is provided with the spout, slider sliding connection is in the spout, and the one end of guide bar is fixed on the lateral wall of slider, and compression spring's one end is fixed on the slider, and compression spring's the other end is fixed on the base, the up end at the slider is connected through the pivot rotation to the one end of side lever, the other end at the side lever is connected in the rotation of holding in the palm the shell, is provided with multiunit location arch and recess on the lateral wall of holding in the palm the shell.

Furthermore, a protective shell is arranged on the outer side of the guide rod, and the compression spring is located in the protective shell.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model the novel structure of the utility model is that,

(1) By arranging the head support and the automatic positioning mechanism, when the head of a patient is placed on the head support, the arc cushion is controlled to move downwards by the guide post and the guide block in the automatic positioning mechanism through the automatic positioning mechanism, and when the arc cushion wraps the bottom of the head of the patient, the arc cushion does not continuously move downwards under the lateral support of the guide post, so that the head of the patient is automatically positioned and centered, external operation is not needed, the preparation time before CT scanning is shortened, and the preparation efficiency of CT scanning is improved;

(2) By arranging the arc-shaped cushion and the air bag, the arc-shaped cushion and the air bag can be contacted with the bottom of the head of the patient, so that the hard part of the head support is prevented from being directly contacted with the head of the patient, the comfort in CT scanning is improved, and the using effect is improved;

(3) Through being provided with arc type head hoop mechanism and chin rest mechanism, usable two sets of chin rest mechanism hold in the palm patient's chin, then with arc type head hoop mechanism install the head hold in the palm, fix patient's head through the cooperation of arc type head hoop mechanism and arc type cushion, prevent that patient's head from rocking, avoid rocking because of the patient and influence the scanning precision.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of the area A in FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural view of an arc-shaped head band mechanism;

FIG. 5 is a partial enlarged view of the area B in FIG. 4;

FIG. 6 is a schematic view of the internal structure of the protective case;

1. a base; 2. a head rest; 3. positioning a groove; 4. an arc-shaped cushion; 5. an automatic positioning mechanism; 6. mounting grooves; 7. an air bag; 8. an arc-shaped head band mechanism; 9. a lower jaw support mechanism; 10. a telescoping assembly; 11. mounting holes; 12. a locking assembly; 13. a T-shaped groove; 14. a chute; 501. a guide post; 502. a guide block; 503. a tension spring; 801. an arc-shaped hoop; 802. an arc-shaped rod; 803. a T-shaped connecting block; 804. a slide hole; 805. positioning holes; 901. a compression spring; 902. a guide rod; 903. a slider; 904. a rotating shaft; 905. a side lever; 906. supporting the shell; 907. a protrusion; 908. a groove; 909. a protective shell; 1001. a slide pipe; 1002. a slide bar; 1201. a locking spring; 1202. a locking block; 1203. a housing; 1204. lifting the block; 1205. a connecting rod.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: a head fixing device for CT scanning comprises a base 1 and a head support 2, wherein the base 1 is used for being installed on the table surface of a CT machine, the head support 2 is used for positioning and fixing the head of a patient, the head support 2 is fixed on the upper end surface of the base 1, a positioning groove 3 is formed in the upper end surface of the head support 2, the left side and the right side of the positioning groove 3 extend to the side wall of the head support 2, an arc cushion 4 directly contacting with the head of the patient is arranged in the positioning groove 3, an automatic positioning mechanism 5 is arranged between the arc cushion 4 and the positioning groove 3, a plurality of mounting grooves 6 are formed in the inner side of the arc cushion 4 and the contact surface of the head of the patient, an air bag 7 is arranged in each mounting groove 6, an arc head hoop mechanism 8 is detachably connected to the upper end surface of the head support 2, the arc head hoop mechanism 8 is matched with the arc cushion 4, two groups of lower jaw support mechanisms 9 are symmetrically arranged on the upper end surface of the base 1 by the central line of the head support 2, the lower jaw support mechanisms 9 are connected with the base 1 in a sliding mode, and the two groups of lower jaw support mechanisms 9 are detachably connected;

automatic positioning mechanism 5 includes guide post 501, guide block 502, flexible subassembly 10 and expanding spring 503, the bottom of guide post 501 is fixed on the lateral wall of constant head tank 3 along the slant direction, guide block 502 is fixed on the lateral wall of arc type cushion 4, guide post 501 passes guide block 502, and guide block 502 and guide post 501 sliding connection, can be provided with the multiunit along the gliding flexible subassembly 10 of arc type cushion 4 length direction, the top setting of flexible subassembly 10 is in the bottom of arc type cushion 4, the bottom of constant head tank 3 is provided with a plurality of mounting holes 11, the bottom of flexible subassembly 10 is fixed in mounting hole 11, expanding spring 503 cup joints the outside at expanding assembly 10, and the top at expanding assembly 10 is fixed on expanding spring 503's top, expanding spring 503's bottom mounting is in mounting hole 11.

The telescopic assembly 10 comprises a sliding pipe 1001 and a sliding rod 1002, the sliding pipe 1001 is slidably connected to the outer side of the sliding rod 1002, the top end of the sliding pipe 1001 is slidably connected to the bottom of the arc-shaped cushion 4, and the bottom of the sliding rod 1002 is fixed in the mounting hole 11.

The arc-shaped head hoop mechanism 8 comprises an arc-shaped hoop 801, arc-shaped rods 802, T-shaped connecting blocks 803 and a locking assembly 12, wherein sliding holes 804 are respectively formed in two ends of the arc-shaped hoop 801 along the length direction of the arc-shaped hoop, two groups of arc-shaped rods 802 are arranged, the two groups of arc-shaped rods 802 are respectively connected in the sliding holes 804 in a sliding mode, the two groups of T-shaped connecting blocks 803 are arranged, the T-shaped connecting blocks 803 are rotatably connected to the bottoms of the arc-shaped rods 802, T-shaped grooves 13 are formed in the side wall of the head support 2, and the T-shaped connecting blocks 803 are inserted into the T-shaped grooves 13.

The locking assembly 12 comprises a locking spring 1201, a locking block 1202, a housing 1203 and a lifting block 1204, wherein the locking spring 1201 and the locking block 1202 are both located in the housing 1203, the housing 1203 is fixed on the upper end face of an arc-shaped hoop 801, a plurality of positioning holes 805 are formed in the arc-shaped rod 802, one end of the locking block 1202 penetrates through the arc-shaped hoop 801 and is inserted into one of the positioning holes 805, the other end of the locking block 1202 is provided with a connecting rod 1205, the locking spring 1201 is sleeved on the connecting rod 1205, one end of the locking spring 1201 is fixed in the housing 1203, the other end of the locking spring 1201 is fixed at the other end of the locking block 1202, and one end of the lifting block 1204 penetrates through the housing 1203 and is fixed at one end of the connecting rod 1205.

The lower jaw support mechanism 9 comprises a compression spring 901, a guide rod 902, a sliding block 903, a rotating shaft 904, a side rod 905 and a support shell 906, wherein sliding grooves 14 are symmetrically formed in the upper end face of the base 1, the sliding block 903 is connected in the sliding grooves 14 in a sliding mode, one end of the guide rod 902 is fixed to the side wall of the sliding block 903, one end of the compression spring 901 is fixed to the sliding block 903, the other end of the compression spring 901 is fixed to the base 1, one end of the side rod 905 is rotatably connected to the upper end face of the sliding block 903 through the rotating shaft 904, the support shell 906 is rotatably connected to the other end of the side rod 905, and a plurality of groups of positioning protrusions 907 and grooves 908 are formed in the side wall of the support shell 906.

A protective shell 909 is arranged on the outer side of the guide rod 902, and the compression spring 901 is positioned in the protective shell 909;

when the arc-shaped cushion mechanism is used, the base 1 is installed on a platform of a CT machine, a patient lies on the platform, the arc-shaped head hoop mechanism 8 is taken down from the head support 2, the head of the patient is in contact with the arc-shaped cushion 4 and the air bag 7, the arc-shaped cushion 4 is continuously pressed downwards under the action of the self weight of the patient, the arc-shaped cushion 4 moves downwards along the guide column 501 through the guide block 502, the telescopic spring 503 and the telescopic assembly 10 are compressed in the process, the arc-shaped cushion 4 wraps the bottom of the head of the patient, the arc-shaped cushion 4 is supported through the cooperation of the guide column 501, the guide block 502, the telescopic spring 503 and the head support 2, the guide rod 902 pulls the sliding block 903 to pull the two groups of side bars 905 apart, the jaw of the patient is placed between the two groups of support shells 906, then the guide rod 902 is released, the two groups of sliding blocks 903 are close to each other in the pressing spring 901, the two groups of support shells 906 are combined together through the protrusions 907 and the grooves 908, then the locking block 1204 is pulled to be separated from the inside of the locking hole 803, the arc-shaped cushion 802 is inserted into the arc-shaped groove 801, the arc-shaped head of the arc-shaped cushion 802, the arc-shaped cushion 802 is pressed into the arc-shaped head 13 of the patient, and the arc-shaped head is fixed to be inserted into the arc-shaped groove 801, and the arc-shaped head hoop mechanism 8, and the arc-shaped cushion 802, and the arc-shaped head is inserted into the arc-shaped cushion 801, and the arc-shaped head hoop mechanism 13 of the arc-shaped cushion 801, and the arc-shaped cushion 802, and the arc-shaped head is inserted into the arc-shaped connection block 1202, and the arc-shaped connection block 1202.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalent substitutions may be made to some of the features of the embodiments without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a head fixing device for CT scanning, is including being used for installing base (1) on CT machine table face and head rest (2) that are used for the fixed patient head of location, head rest (2) are fixed the up end of base (1), its characterized in that: the up end that the head held in the palm (2) is provided with constant head tank (3), the left and right sides of constant head tank (3) extend to on the lateral wall that the head held in the palm (2), be provided with arc type cushion (4) of direct and patient head contact in constant head tank (3), be provided with automatic positioning mechanism (5) between arc type cushion (4) and constant head tank (3), be provided with a plurality of mounting grooves (6) on the inboard of arc type cushion (4) and the patient head contact surface, be provided with gasbag (7) in mounting groove (6), the up end that the head held in the palm (2) is provided with can dismantle and is connected with arc type head hoop mechanism (8), arc type head hoop mechanism (8) and arc type cushion (4) cooperation set up, the up end of base (1) is provided with two sets of lower jaws with the central line symmetry that the head held in the palm (2), lower jaw holds in the palm mechanism (9) and base (1) sliding connection, can dismantle the connection between two sets of jaw support mechanism (9).

2. The head holder for CT scanning according to claim 1, wherein: automatic positioning mechanism (5) are fixed including guide post (501), guide block (502), flexible subassembly (10) and expanding spring (503), the bottom of guide post (501) is fixed along the slant direction on the lateral wall of constant head tank (3), guide block (502) are fixed on the lateral wall of arc type cushion (4), guide block (502) are passed in guide post (501), and guide block (502) and guide post (501) sliding connection, can follow the gliding flexible subassembly (10) of arc type cushion (4) length direction and be provided with the multiunit, the top of expanding spring (10) sets up in the bottom of arc type cushion (4), the bottom of constant head tank (3) is provided with a plurality of mounting holes (11), the bottom of expanding spring (10) is fixed in mounting hole (11), expanding spring (503) cup joint in the outside of flexible subassembly (10), and the top of expanding spring (503) is fixed at the top of expanding spring (10), the bottom mounting hole (11) is fixed to the bottom of expanding spring (503).

3. The head fixing device for CT scanning according to claim 2, wherein: flexible subassembly (10) include slide pipe (1001) and slide bar (1002), slide pipe (1001) sliding connection be in the outside of slide bar (1002), the top sliding connection of slide pipe (1001) is in the bottom of arc type cushion (4), the bottom of slide bar (1002) is fixed in mounting hole (11).

4. The head holder for CT scanning according to claim 1, wherein: arc type head hoop mechanism (8) are including arc hoop (801), arc pole (802), T type connecting block (803) and locking Assembly (12), the both ends of arc hoop (801) are provided with slide opening (804) respectively along its length direction, arc pole (802) are provided with two sets ofly, two sets ofly arc pole (802) sliding connection respectively are in slide opening (804), T type connecting block (803) are provided with two sets ofly, and T type connecting block (803) rotate to be connected in the bottom of arc pole (802), be provided with T type groove (13) on the lateral wall of head rest (2), T type connecting block (803) plug-in to T type groove (13).

5. The head holder for CT scanning according to claim 4, wherein: the locking assembly (12) comprises a locking spring (1201), a locking block (1202), a shell (1203) and a lifting block (1204), the locking spring (1201) and the locking block (1202) are located in the shell (1203), the shell (1203) is fixed to the upper end face of an arc-shaped hoop (801), a plurality of positioning holes (805) are formed in an arc-shaped rod (802), one end of the locking block (1202) penetrates through the arc-shaped hoop (801) to be inserted into one of the positioning holes (805), a connecting rod (1205) is arranged at the other end of the locking block (1202), the locking spring (1201) is sleeved on the connecting rod (1205), one end of the locking spring (1201) is fixed in the shell (1203), the other end of the locking spring (1201) is fixed to the other end of the locking block (1202), and one end of the lifting block (1204) penetrates through the shell (1203) to be fixed to one end of the connecting rod (1205).

6. The head holder for CT scanning according to claim 1, wherein: the lower jaw support mechanism (9) comprises a compression spring (901), a guide rod (902), a sliding block (903), a rotating shaft (904), a side rod (905) and a support shell (906), sliding grooves (14) are symmetrically formed in the upper end face of the base (1), the sliding block (903) is connected in the sliding grooves (14) in a sliding mode, one end of the guide rod (902) is fixed to the side wall of the sliding block (903), one end of the compression spring (901) is fixed to the sliding block (903), the other end of the compression spring (901) is fixed to the base (1), one end of the side rod (905) is connected to the upper end face of the sliding block (903) in a rotating mode through the rotating shaft (904), the support shell (906) is connected to the other end of the side rod (905) in a rotating mode, and a plurality of groups of positioning protrusions (907) and grooves (908) are formed in the side wall of the support shell (906).

7. The head fixing device for CT scanning according to claim 6, characterized in that: a protective shell (909) is arranged on the outer side of the guide rod (902), and the compression spring (901) is located in the protective shell (909).