CN211659092U

CN211659092U - Head tumour radiotherapy positioner

Info

Publication number: CN211659092U
Application number: CN201922259180.6U
Authority: CN
Inventors: 周青
Original assignee: Second Affiliated Hospital of Zhengzhou Unviersity
Current assignee: Second Affiliated Hospital of Zhengzhou Unviersity
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-10-13
Anticipated expiration: 2029-12-16

Abstract

A head tumor radiotherapy positioning device comprises a lying plate, wherein a bidirectional screw rod is rotatably connected to the front side of the lying plate, a head fixing device is arranged on the bidirectional screw rod and is connected with the lying plate in a sliding manner, the head fixing device comprises a clamping block, a supporting block is slidably connected to the left side of the clamping block, a cushion cover is arranged in the supporting block, a rectangular groove is formed in the rear side of the cushion cover and is located on the clamping block, an end positioning block and a middle positioning block are arranged in the rectangular groove, a connecting rod mechanism is rotatably connected between the middle positioning block and the end positioning block, the end positioning blocks are two and have the same connecting structure, and a leg fixing belt is fixedly connected to the rear side of the upper surface of the lying plate; the utility model provides an among the radiotherapy process patient's head rock the influence radiotherapy effect to increase the problem of doctor's work load.

Description

Head tumour radiotherapy positioner

Technical Field

The utility model belongs to the technical field of the medical treatment technique and specifically relates to a head tumour radiotherapy positioner is related to.

Background

In radiotherapy, especially when carrying out radiotherapy to the patient of brain tumour, need carry out accurate location to patient's head because there is the pain when the treatment, the patient can unconsciously remove the head, and the effect that like this can greatly reduced treatment, what now commonly adopted is that medical personnel from side supplementary fixed patient's head, has increaseed medical personnel's work load like this, influences patient's treatment simultaneously.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a head tumour radiotherapy positioner can effectual solution rock the influence radiotherapy effect at radiotherapy in-process patient's head to increase the problem of doctor work load.

In order to realize the purpose, the utility model comprises a lying plate, the front side of the lying plate is rotationally connected with a bidirectional screw, the bidirectional screw is provided with a head fixing device, the head fixing device is connected with the lying plate in a sliding way, the head fixing device comprises a clamping block, the left side of the clamping block is connected with a supporting block in a sliding way, a cushion cover is arranged in the supporting block, the back side of the cushion cover is provided with a rectangular groove, the rectangular groove is positioned on the clamping block, an end part positioning block and a middle part positioning block are arranged in the rectangular groove, the middle part positioning block is fixedly connected with a guide pin which is horizontally arranged, the guide pin is connected with the clamping block in a sliding way, a first spring is sleeved on the guide pin, the middle part positioning block is rotationally connected with a first connecting rod and a second connecting rod, the other end of the first connecting rod is rotationally connected with a, the slider other end rotates and is connected with the third connecting rod, the third connecting rod articulates there is the fourth connecting rod, the fourth connecting rod rotates with the clamp splice to be connected, and third connecting rod and fourth connecting rod rotate with the tip locating piece to be connected, the tip locating piece has two and the connection structure of two tip locating pieces is the same, rear side fixedly connected with shank fixed band above the service creeper.

Preferably, a reel is rotatably connected to the supporting block, a coil spring is fixedly connected to the reel, the coil spring is fixedly connected to the supporting block, the reel is fixedly connected to a cushion cover, the number of the supporting blocks is two, the two supporting blocks are located on the upper side and the lower side of the clamping block, and the two supporting blocks are the same in connection structure.

Preferably, the supporting block rear side fixedly connected with support column, support column and clamp splice sliding connection, it has the guiding hole to open in the clamp splice, fixedly connected with second spring in the guiding hole, second spring left end and support column fixed connection.

Preferably, the bottom of the lying plate is fixedly connected with a movable support, the support is rotatably connected with a caster, one side of the caster is provided with adjustable support legs, and the support legs are fixedly connected with the support.

Preferably, wheel grooves are formed in two sides of the bottom of the clamping block, idler wheels are rotatably connected in the wheel grooves, and threaded holes matched with the bidirectional screw rods are formed in the middle of the bottom of the clamping block.

Compared with the prior art, the utility model has the advantages that: the two clamping blocks are controlled to move simultaneously by controlling the bidirectional screw rod, so that the head of a patient can be fixed more quickly; the middle positioning block moves rightwards, so that the end positioning block moves leftwards, an arc shape is formed to position the head of the patient, the contact area of the middle positioning block and the head of the patient is increased, and the positioning is firmer; first spring and second spring play certain shock attenuation effect when fixed patient's head, protect patient's head, avoid excessive extrusion.

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 a schematic view of a first cross-sectional structure of the present invention.

Fig. 3 is a schematic view of the internal structure of the supporting block of the present invention.

Fig. 4 is an enlarged schematic structural diagram of a in fig. 1 according to the present invention.

Fig. 5 is an enlarged schematic structural diagram of B in fig. 1 according to the present invention.

FIG. 6 is an enlarged schematic view of C in FIG. 3 according to the present invention

In the figure: the device comprises a lying plate 1, a bidirectional screw rod 2, a clamping block 3, a supporting block 4, a cushion cover 5, a rectangular groove 6, a positioning block at the end part 7, a positioning block at the middle part 8, a guide pin 9, a first spring 10, a first connecting rod 11, a second connecting rod 12, a sliding block 13, a sliding chute 14, a third connecting rod 15, a fourth connecting rod 16, a leg fixing belt 17, a reel 18, a coil spring 19, a supporting column 20, a guide hole 21, a second spring 22, a support 23, a caster 24, a supporting leg 25, a wheel groove 26, a roller 27 and a threaded hole 28.

Detailed Description

The invention will now be described in further detail with reference to the accompanying figures 1-6. The attached drawings are simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

As shown in figures 1-6, the utility model comprises a lying plate 1, a bidirectional screw 2 is rotatably connected with the front side of the lying plate 1, a head fixing device is arranged on the bidirectional screw 2 and is slidably connected with the lying plate 1, the head fixing device comprises a clamping block 3, the left side of the clamping block 3 is slidably connected with a supporting block 4, a cushion cover 5 is arranged in the supporting block 4, a rectangular groove 6 is arranged at the rear side of the cushion cover 5, the rectangular groove 6 is positioned on the clamping block 3, an end positioning block 7 and a middle positioning block 8 are arranged in the rectangular groove 6, a horizontally arranged guide pin 9 is fixedly connected with the middle positioning block 8, the guide pin 9 is slidably connected with the clamping block 3, a first spring 10 is sleeved on the guide pin 9, a first connecting rod 11 and a second connecting rod 12 are rotatably connected with the midpoint of the middle positioning block 8, the other end of the first connecting rod 11 is rotatably connected with a sliding block 13, slider 13 sliding connection has vertical spout 14, spout 14 is located clamp splice 3, slider 13 other end rotates and is connected with third connecting rod 15, third connecting rod 15 articulates there is fourth connecting rod 16, fourth connecting rod 16 rotates with clamp splice 3 to be connected, and third connecting rod 15 and fourth connecting rod 16 rotate with tip locating piece 7 to be connected, tip locating piece 7 has two and two tip locating piece 7's connection structure the same, rear side fixedly connected with shank fixed band 17 above service creeper 1.

The clamping blocks 3 are two, the thread turning directions of the threaded holes 28 on the two clamping blocks 3 are different, and when the two clamping blocks 3 of the bidirectional screw rod 2 are rotated to be matched with the bidirectional screw rod 2 to move relatively. When the clamp splice 3 is fixed to the head of a patient, the two-way lead screw 2 is rotated to enable the two clamp splices 3 to be relatively close to each other, the cushion cover 5 is made of flexible materials, the head of the patient is protected by clamping when clamping is conducted, and the comfort level of clamping is improved. After the cushion cover 5 is contacted with the head of a patient, the cushion cover 5 is moved towards the direction far away from the head by the counter-acting force of the head to the cushion cover 5, after the cushion cover 5 moves for a certain length, one side of the cushion cover 5 is contacted with the end positioning block 7 and the middle positioning block 8 in the rectangular groove 6, the middle positioning block 8 moves rightwards under the pushing of the counter-acting force of the head, the middle positioning block 8 drives the guide pin 9 to move rightwards, the clamping block 3 is internally provided with a cylindrical hole, the guide pin 9 compresses the first spring 10 to move rightwards in the cylindrical hole of the clamping block 3, the included angle between the first connecting rod 11 and the second connecting rod 12 is changed while the middle positioning block 8 moves horizontally rightwards, the first connecting rod 11 pushes the sliding block 13 to move, the sliding block 13 moves vertically upwards under the action of the vertical sliding groove 14, the sliding block 13 pushes the third connecting rod 15 to move upwards, the included angle between the, end positioning blocks 7 have two, and two end positioning blocks 7 are the same about 8 symmetric distributions of middle part locating block and their connection structure, and when fixed patient's head, the reaction force of head promotes end positioning block 7 and middle part locating block 8 and forms the arc form to the centre gripping area of increase centre gripping patient's head makes more firm of centre gripping effect. The side edges of the two supporting blocks 4 are provided with flexible protective layers and the reel 18 inside the two supporting blocks 4 is coiled with the cushion cover 5, the reel 18 enables the cushion cover 5 between the two supporting blocks 4 to be stretched under the acting force of the coil spring 19, and when the cushion cover 5 needs to be stretched due to head oppression, the cushion cover 5 pulls the reel 18 to rotate, so that the length of the cushion cover 5 is lengthened. The coil spring 19, the first spring 10 and the second spring 22 can restore the head fixing device to the original state after the clamping deformation, so as to facilitate the clamping of the next patient.

As shown in fig. 1, the support 23 supports the lying board 1, increases the height of the lying board 1 from the ground, and is convenient for the medical staff to operate the patient on the lying board 1. Shank fixed band 17 on service creeper 1 can be fixed patient's shank, prevents that patient's limbs from moving indiscriminately when the treatment, has sewed up the thorn face that the magic was pasted on shank fixed band 17, and the hair side that fixedly connected with magic was pasted on service creeper 1, through the fixed mode that the laminating was pasted to the magic, convenient and fast, the medical personnel of being convenient for operate. The fixed support leg 25 at the bottom of the bracket 23 is a conventional adjustable support leg 25, so that the levelness of the bracket 23 can be conveniently adjusted; in addition, the feet 25 can be raised so that the casters 24 contact the ground, facilitating movement of the device.

The roller 27 in the pulley groove 26 at the bottom of the clamping block 3 reduces the friction force between the clamping block 3 and the lying plate 1, so that the medical staff can save more labor when rotating the bidirectional screw rod 2.

The utility model discloses whole work flow: the patient lies on service creeper 1, and patient's shank is fixed with shank fixed band 17, and the patient head is arranged in between two clamp splice 3, then rotates two-way lead screw 2, and two-way lead screw 2 drives and makes two clamp splice 3 be close to relatively, and the cover 5 that covers is flexible material, protects the head of patient's centre gripping when the centre gripping, improves the comfort level of centre gripping. After the cushion cover 5 is contacted with the head of a patient, the cushion cover 5 is moved towards the direction far away from the head by the counter-acting force of the head to the cushion cover 5, after the cushion cover 5 moves for a certain length, one side of the cushion cover 5 is contacted with the end positioning block 7 and the middle positioning block 8 in the rectangular groove 6, the middle positioning block 8 moves rightwards under the pushing of the counter-acting force of the head, the middle positioning block 8 drives the guide pin 9 to move rightwards, the clamping block 3 is internally provided with a cylindrical hole, the guide pin 9 compresses the first spring 10 to move rightwards in the cylindrical hole of the clamping block 3, the included angle between the first connecting rod 11 and the second connecting rod 12 is changed while the middle positioning block 8 moves horizontally rightwards, the first connecting rod 11 pushes the sliding block 13 to move, the sliding block 13 moves vertically upwards under the action of the vertical sliding groove 14, the sliding block 13 pushes the third connecting rod 15 to move upwards, the included angle between the, the two end positioning blocks 7 are symmetrically distributed relative to the middle positioning block 8, and the two end positioning blocks 7 are identical in connecting structure, when the head of a patient is fixed, the end positioning blocks 7 and the middle positioning block 8 are pushed to form an arc shape by the counter-positive acting force of the head, so that the clamping area for clamping the head of the patient is increased, and the clamping effect is more stable; the use of the rear coil spring 19, the first spring 10 and the second spring 22 allows the head fixation device to be restored to the original state after the clamping deformation, facilitating the clamping of the next patient.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A head tumour radiotherapy positioner, includes service creeper (1), its characterized in that: the front side of the lying plate (1) is rotatably connected with a bidirectional screw rod (2), the bidirectional screw rod (2) is provided with a head fixing device, the head fixing device is in sliding connection with the lying plate (1), the head fixing device comprises a clamping block (3), the left side of the clamping block (3) is in sliding connection with a supporting block (4), a cushion cover (5) is arranged in the supporting block (4), the rear side of the cushion cover (5) is provided with a rectangular groove (6), the rectangular groove (6) is positioned on the clamping block (3), an end positioning block (7) and a middle positioning block (8) are arranged in the rectangular groove (6), the middle positioning block (8) is fixedly connected with a horizontally arranged guide pin (9), the guide pin (9) is in sliding connection with the clamping block (3), a first spring (10) is sleeved on the guide pin (9), the middle point of the middle positioning block (8) is rotatably connected with a first connecting rod (11) and a second connecting rod (12), first connecting rod (11) other end rotates and is connected with slider (13), slider (13) sliding connection has vertical spout (14), spout (14) are located clamp splice (3), slider (13) other end rotates and is connected with third connecting rod (15), third connecting rod (15) articulate has fourth connecting rod (16), fourth connecting rod (16) rotate with clamp splice (3) and are connected, and third connecting rod (15) and fourth connecting rod (16) rotate with tip locating piece (7) and are connected, tip locating piece (7) have two and the connection structure of two tip locating pieces (7) is the same, rear side fixedly connected with shank fixed band (17) above service creeper (1).

2. The head tumor radiotherapy positioning device according to claim 1, wherein a reel (18) is rotatably connected to the supporting block (4), a coil spring (19) is fixedly connected to the reel (18), the coil spring (19) is fixedly connected to the supporting block (4), the reel (18) is fixedly connected to the cushion cover (5), two supporting blocks (4) are provided, and the two supporting blocks (4) are located at the upper and lower sides of the clamping block (3) and have the same connecting structure.

3. The head tumor radiotherapy positioning device of claim 2, wherein: support column (20) is fixedly connected with to supporting shoe (4) rear side, support column (20) and clamp splice (3) sliding connection, it has guiding hole (21) to open in clamp splice (3), fixedly connected with second spring (22) in guiding hole (21), second spring (22) left end and support column (20) fixed connection.

4. The head tumor radiotherapy positioning device of claim 1, wherein: the improved lying board is characterized in that a movable support (23) is fixedly connected to the bottom of the lying board (1), casters (24) are rotatably connected to the support (23), adjustable support legs (25) are arranged on one sides of the casters (24), and the support legs (25) are fixedly connected with the support (23).

5. The head tumor radiotherapy positioning device of claim 1, wherein: wheel grooves (26) are formed in two sides of the bottom of the clamping block (3), idler wheels (27) are rotationally connected in the wheel grooves (26), and threaded holes (28) matched with the bidirectional screw rods (2) are formed in the middle of the bottom of the clamping block (3).