CN113017676B - Supplementary headstock of oval hole CT location - Google Patents

Abstract

The invention discloses an oval hole CT positioning auxiliary head frame which comprises a sliding plate, a head support and a head and neck part on a human body, wherein rubber is sleeved on the outer side of the head support, a cushion block is fixedly connected to the front end of the head support, a sliding block is fixedly connected to the bottom of the head support, a round block is fixedly connected to the top of the sliding plate, a wood board is rotatably connected to the inside of the head support, two baffles are fixedly connected to the wood board, and the head is placed on a third air bag in the head support. According to the invention, through adjusting the height and the left and right of the head of the patient, the long axis section of the oval hole under CT can be better exposed, the puncture part can be accurately positioned, the error in puncture positioning can be reduced, the scanning times are reduced under the same operation technology, the head of the patient is fixed left and right, and the inaccuracy of positioning caused by the left and right offset of the head of the patient after CT positioning is prevented.

Description

A kind of foramen ovale CT positioning auxiliary head frame

Technical field

The present invention relates to the technical field of foramen ovale puncture, and in particular to an auxiliary head frame for CT positioning of foramen ovale.

Background technique

Trigeminal neuralgia is a common neuropathic pain in the head and face. It is characterized by episodic severe pain, which seriously affects the patient's daily life. Anatomically, the trigeminal nerve contains sensory nerves and motor nerves, among which the sensory nerves are located before the brain exits. It forms the trigeminal ganglion and gives off the ophthalmic branch, the maxillary branch, and the mandibular branch; they penetrate the skull through the superior orbital fissure, round foramen, and foramen ovale respectively. Due to the characteristics of the anatomical position, clinically, retrograde puncture through the foramen ovale is often chosen to reach the trigeminal nerve. injection or radiofrequency treatment. In order to improve the accuracy of puncture, the operation is mostly performed under CT guidance.

At present, when performing foramen ovale puncture, most people use a headrest to cushion the patient's shoulders and raise the mandible slightly to display the long axis section of the foramen ovale under CT. However, since the height of the headrest is difficult to adjust, it is difficult to obtain a good CT section (if the headrest is too low, it will be difficult to reveal, and if it is too high, the patient's head will be suspended in the air, making it difficult to maintain the posture). In addition, even when the height is satisfactory, because the patient There are no fixtures on both sides of the head. During the puncture process, the head is prone to shift left and right, causing the CT section to shift and even the puncture path to be blocked, causing unnecessary CT scans and increasing the patient's radiation dose. For this reason, we An auxiliary head frame for CT positioning and puncture of foramen ovale is proposed.

Contents of the invention

The purpose of this invention is to solve the shortcomings in the existing technology that the patient's puncture site cannot be displayed at the optimal angle of the CT machine image, and at the same time, the patient's head cannot be fixed, and a CT positioning of the foramen ovale is proposed Auxiliary headstock.

In order to achieve the above objects, the present invention adopts the following technical solutions:

An auxiliary head frame for foramen ovale CT positioning, including a sliding plate, a head frame, and the upper head and neck of the human body. The outside of the head frame is covered with rubber, and the front end of the head frame is fixedly connected with a pad. , a slider is fixedly connected to the bottom of the head bracket, a round block is fixedly connected to the top of the sliding plate, a wooden board is rotatably connected to the inside of the head bracket, and two baffles are fixedly connected to the wooden board. The head is placed on the third air bag inside the head bracket, the neck is placed on the pad, the slider slides on the side wall of the round block, and the head bracket is connected with an adjustment mechanism;

The adjustment mechanism includes two pull ropes fixedly connected to the bottom end of the head bracket. Two vertical rods are fixedly connected to the sliding plate. A plurality of hooks are fixedly connected to the two vertical rods. The two pull ropes are fixedly connected to the bottom end of the head bracket. The ropes and vertical bars are located on the left and right sides of the head support;

The wooden board is connected with a limiting mechanism and a rotating mechanism;

The limiting mechanism includes a third airbag fixedly connected to the top of the wooden board. The third airbag is located inside the head bracket. The two first airbags are fixedly connected to the sides of the two baffles. The two first airbags are fixedly connected to the top of the wooden board. The air bag is provided with a connection hole, an air guide tube is fixedly connected to the connection hole, a second air bag is fixedly connected to the upper rubber of the head support, and the two first air bags are connected to the second air bag through the air guide tube. connect;

The rotating mechanism includes a rotating rod fixedly connected to the interior of the wooden board. One end of the rotating rod is fixedly connected to a rotating handle. The inner wall of the rotating rod is fixedly connected to a support rod. The support rod is connected to a rotating wheel. A rotating plate is fixedly connected to the rotating wheel, a first spring rod and a second spring rod are fixedly connected to the inner wall of the rotating rod, and the other end of the first spring rod is fixedly connected to the bottom of one end of the rotating plate. A sleeve is fixedly connected to the top of the rotating plate, and the sleeve is hollow. The second spring rod is fixedly connected to the bottom of the other end of the rotating plate. One end of the rotating plate is fixedly connected to one end of the second spring rod. A fixed rod is fixedly connected to the top of the fixed rod, and a push button is fixedly connected to the other end of the fixed rod. Two fixed hooks are fixedly connected to the push button. A chute is provided on the outer wall of the rotating rod. The push button The moving button is slidingly connected to the rotating rod through the chute. A plurality of fixing buckles are fixedly connected to the position of the rotating rod corresponding to the pressing button. Two of the fixing hooks correspond to the plurality of fixing buckles. Each of the fixing hooks is located above a plurality of fixing buckles.

Preferably, the outer wall of the rotating rod is provided with a limiting groove, and a plurality of fixed tubes are fixedly connected to the inside of the limiting groove, and the plurality of fixed tubes correspond to the casing.

Preferably, the rotating rod penetrates the wooden board and extends to the inner and outer sides of the head bracket, and the rotating rod is rotationally connected to the inner wall of the head bracket.

Compared with the existing technology, the beneficial effects of the present invention are:

1. In the present invention, by adjusting the height and left and right of the patient's head, the long axis section of the foramen ovale under CT can be better exposed, the puncture site can be accurately positioned, and errors in puncture positioning can be reduced. , reducing the number of scans and reducing the radiation exposure to patients under the same operating technology.

2. Fix the patient's head left and right to prevent the CT section from changing due to the patient's head shifting left and right after CT positioning, resulting in inaccurate positioning and affecting the final puncture operation. A new needle is added to the patient's head. The air bag can accurately adjust the deflection angle of the patient's head to facilitate CT positioning. It can also assist in fixing the patient's head and improve the patient's comfort during the puncture process.

Description of drawings

Figure 1 is a schematic structural diagram of a foramen ovale CT positioning auxiliary head frame proposed by the present invention;

Figure 2 is an overall view of a foramen ovale CT positioning auxiliary head frame proposed by the present invention;

Figure 3 is a side view of a foramen ovale CT positioning auxiliary head frame proposed by the present invention;

Figure 4 is an enlarged view of point A in Figure 1;

Figure 5 is a perspective view of the head support;

Figure 6 is a cross-sectional view of the head bracket;

Figure 7 is a left view of the head support;

Figure 8 is a front view of the push button.

In the picture: 1 sliding plate, 2 wooden board, 3 pad, 4 baffle, 5 first air bag, 6 second air bag, 7 air guide tube, 8 rotating handle, 9 rotating rod, 10 limit slot, 11 fixed tube, 12 The first spring rod, 13 push button, 14 fixed rod, 15 rotating plate, 16 second spring rod, 17 sleeve, 18 head bracket, 19 third air bag, 20 head, 21 neck, 22 support rod, 23 round block, 24 slider, 25 drawstring, 26 hook, 27 chute, 28 fixed buckle, 29 fixed hook.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside" and so on is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation. Specific orientations of construction and operation are therefore not to be construed as limitations of the invention.

Referring to Figure 1-8, a foramen ovale CT positioning auxiliary head frame includes a sliding plate 1, a head frame 18 and a head 20 and neck 21 on the human body. The outside of the head frame 18 is covered with rubber. When the person When the head 20 and neck 21 are placed on the head support 18, the rubber on the outside of the head support 18 can make the head 20 and neck 21 more comfortable. When the head support 18 adjusts the head 20 At this time, the rubber can further protect the head 20 and the neck 21. The front end of the head support 18 is fixedly connected with the pad 3. Since the pad 3 is located at the position of the neck 21, the pad 3 can be placed on the face where the puncture is being performed. The bottom of the head support 18 is fixedly connected to the slider 24, and the top of the sliding plate 1 is fixedly connected to the round block 23. The sliding plate 1 is used to allow people to enter the CT machine through the sliding plate 1 for puncture and positioning of the foramen ovale during CT scanning. The sliding block 24 can slide on the round block 23 to further perform the head 20 Adjust so that the image can accurately illuminate the puncture part. The internal rotation of the head bracket 18 is connected to a wooden board 2. Two baffles 4 are fixedly connected to the wooden board 2. The head 20 is placed in the third air bag inside the head bracket 18. 19, the neck 21 is placed on the block 3.

The head bracket 18 is connected with an adjustment mechanism. The adjustment mechanism includes two pull ropes 25 fixedly connected to the bottom end of the head bracket 18. There are two vertical rods fixedly connected to the sliding plate 1, and a plurality of vertical rods are fixedly connected to the two vertical rods. The hook 26, the two pull ropes 25 and the vertical rods are located on the left and right sides of the head bracket 18, which can further fix the head bracket 18. The wooden board 2 is connected with a limiting mechanism and a rotating mechanism. The third airbag 19 is fixedly connected at the top. The third airbag 19 is located inside the head support 18. The rotation of the wooden board 2 can drive the rotation of the third airbag 19, and can further find a patient's head when adjusting the height. 20, positioning in a comfortable position, the sides of the two baffles 4 are fixedly connected with the first airbag 5, the two first airbags 5 are provided with connection holes, the connection holes are fixedly connected with the air guide tube 7, and the head bracket 18 A second air bag 6 is fixedly connected to the upper rubber. The two first air bags 5 are connected to the second air bag 6 through the air guide tube 7. The rotating mechanism includes a rotating rod 9 fixedly connected to the inside of the wooden board 2. One end of the rotating rod 9 A rotating handle 8 is fixedly connected, and a support rod 22 is fixedly connected to the inner wall of the rotating rod 9. A rotating wheel is rotationally connected to the supporting rod 22, and a rotating plate 15 is fixedly connected to the rotating wheel. The rotation of the rotating wheel can drive the rotating plate 15. Swinging left and right, the inner wall of the rotating rod 9 is fixedly connected with a first spring rod 12 and a second spring rod 16. The first spring rod 12 and the second spring rod 16 can further buffer the rotating plate 15. The first The other end of the spring rod 12 is fixedly connected to the bottom of one end of the rotating plate 15. The top of the rotating plate 15 is fixedly connected to a sleeve 17. The sleeve 17 is hollow. The second spring rod 16 is fixed to the bottom of the other end of the rotating plate 15. connection, the top of one end of the rotating plate 15 and the second spring rod 16 is fixedly connected to a fixed rod 14, the other end of the fixed rod 14 is fixedly connected to a push button 13, and the push button 13 is fixedly connected to two fixed The hook 29 and the outer wall of the rotating rod 9 are provided with a chute 27. The push button 13 is slidingly connected to the rotating rod 9 through the chute 27. There are multiple fixed connections on the rotating rod 9 at positions corresponding to the push button 13. Fixing buckle 28, two fixing hooks 29 correspond to the plurality of fixing buckles 28, and the two fixing hooks 29 are located above the plurality of fixing buckles 28, which can further fix the wooden board 2 and accurately position the puncture site. Preparing for puncture work improves the accuracy of CT positioning, avoids the reduction of puncture effect due to inaccurate positioning, and avoids errors in puncture positioning.

The outer wall of the rotating rod 9 is provided with a limiting groove 10. A plurality of fixed tubes 11 are fixedly connected to the interior of the limiting groove 10. The plurality of fixed tubes 11 correspond to the sleeves 17. The rotating rod 9 penetrates the wooden board 2 and extends to the head. On the inner and outer sides of the bracket 18, the rotating rod 9 is rotationally connected to the inner wall of the head bracket 18.

The functional principle of the present invention can be explained through the following operation methods:

First, a person lies on the sliding plate 1 and places the neck 21 on the pad 3 on the head support 18. Since the pad 3 on the head support 18 is convex on the rubber, the belt One end of the pad 3 is higher than the other positions on the head support 18. Since the neck 21 is lifted by the pad 3, the head 20 is in an upward state at this time. Then, rotate the handle 8, Since the rotating rod 9 is fixedly connected to the rotating handle 8, and the rotating rod 9 is fixedly connected to the wooden board 2, the wooden board 2 rotates with the rotation of the rotating handle 8, thus driving the first airbag 5 to rotate, and the first airbag 5 can be Rotate to the most comfortable position for the patient, and then press the push button 13. At this time, the fixed rod 14, which is fixedly connected to the push button 13, moves toward the inside of the rotating rod 9, squeezing the rotating plate 15. Since the rotating plate 15 and the support The rotating wheel on the rod 22 is fixedly connected, and the other end of the rotating plate 15 is fixedly connected with the sleeve 17. Therefore, when the fixed rod 14 moves inwards, the elasticity of the first spring rod 12 and the second spring rod 16 Under the action, the sleeve 17 passes through the small hole on the rotating rod 9, extends to the outside of the rotating rod 9, and is sleeved on the fixed tube 11 inside the limiting groove 10 that is fixedly connected to the head bracket 18. Then, press the The fixed hook 29 on the moving button 13 is buckled on the fixed buckle 28 fixedly connected to the outer wall of the rotating rod 9, limiting the position between the rotating rod 9 and the head bracket 18, and fixing the third air bag 19. When needed again When adjusting, press the button 13 again and slightly rotate the button 13 to move the fixing hook 29 away from the fixing buckle 28. Under the action of the first spring rod 12 and the second spring rod 16, the sleeve 17 returns to its original position. Return to the original position and return to the inside of the rotating rod 9. The sleeve 17 is no longer sleeved on the fixed tube 11. At this time, the rotating handle 8 can be rotated again to adjust the angle of the third airbag.

Then, according to the position that needs to be adjusted, inject an appropriate amount of gas into the third air bag 19, adjust the height of the head 20, find the precise puncture position of the foramen ovale, and then adjust the two first air bags 5 and the second air bag. 6. Inflate, fix the head 20 left and right, position and protect the upper part of the head, and avoid the patient's head 20 shaking left and right, which will cause the deviation of the foramen ovale puncture position. In this process, due to the need To accurately align the puncture site, it is necessary to adjust the position around the head 20. At this time, the slider 24 fixedly connected to the head bracket 18 is driven to slide on the round block 23 fixedly connected to the top of the sliding plate 1. Thereby adjusting the left and right angles of the head 20, the pull rope 25 fixedly connected to the head bracket 18, and the hook 26 fixedly connected to the vertical rod on the sliding plate 1, by adjusting the positional relationship between the pull rope 25 and the hook 26, the head is aligned. The bottom bracket 18 is used for adjustment and fixation.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed in the present invention, implement the technical solutions of the present invention. Equivalent substitutions or changes of the inventive concept thereof shall be included in the protection scope of the present invention.

Claims (3)

1. The utility model provides an oval hole CT location auxiliary head frame, includes sliding plate (1), head support (18) and human head (20) and neck (21), its characterized in that, the outside cover of head support (18) has rubber, the front end fixedly connected with cushion (3) of head support (18), head support (18) bottom fixedly connected with slider (24), the top fixedly connected with round block (23) of sliding plate (1), the inside rotation of head support (18) is connected with plank (2), fixedly connected with two baffles (4) on plank (2), head (20) are placed on head support (18) inside third gasbag (19), neck (21) are placed on cushion (3), slider (24) slide on round block (23)'s lateral wall, be connected with adjustment mechanism on head support (18), adjustment mechanism is including two stay cords (25) of fixedly connected with in head support (18) bottom, fixedly connected with two on sliding plate (1) have two baffles (4), two montants (26) are located on two montants (26) and two montants (25) are located on the rotation of the side of the montant (2);

the limiting mechanism comprises a third air bag (19) fixedly connected with the top of the wood board (2), the third air bag (19) is positioned in a head support (18), the side faces of the two baffle plates (4) are fixedly connected with first air bags (5), connecting holes are formed in the two first air bags (5), an air duct (7) is fixedly connected to the connecting holes, a second air bag (6) is fixedly connected to the upper rubber of the head support (18), and the two first air bags (5) are in through connection with the second air bag (6) through the air duct (7);

the rotating mechanism comprises a rotating rod (9) fixedly connected with the inside of a wood board (2), one end of the rotating rod (9) is fixedly connected with a rotating handle (8), the inner side wall of the rotating rod (9) is fixedly connected with a supporting rod (22), a rotating wheel is rotatably connected to the supporting rod (22), a rotating plate (15) is fixedly connected to the rotating wheel, a first spring rod (12) and a second spring rod (16) are fixedly connected to the inner side wall of the rotating rod (9), the other end of the first spring rod (12) is fixedly connected with the bottom of one end of the rotating plate (15), the top end of the rotating plate (15) is fixedly connected with a sleeve (17), the sleeve (17) is in a hollow state, the second spring rod (16) is fixedly connected with the bottom of the other end of the rotating plate (15), the top of the rotating plate (15) is fixedly connected with a fixed rod (14), the other end of the fixed rod (14) is fixedly connected with a pressing button (13), the pressing button (13) is fixedly connected with the bottom of one end of the rotating plate (16), two sliding grooves (27) are formed in the sliding grooves (27) and are connected with the sliding grooves (9), a plurality of fixing buckles (28) are fixedly connected to the positions, corresponding to the pressing buttons (13), of the rotating rod (9), two fixing hooks (29) correspond to the fixing buckles (28), and the two fixing hooks (29) are located above the fixing buckles (28).

2. The auxiliary head frame for locating the oval hole CT according to claim 1, wherein a limiting groove (10) is formed in the outer side wall of the rotating rod (9), a plurality of fixing pipes (11) are fixedly connected to the inside of the limiting groove (10), and the fixing pipes (11) correspond to the sleeve (17).

3. An auxiliary head frame for locating a circular oval hole CT according to claim 1, wherein the rotating rod (9) penetrates through the wood board (2) and extends to the inner side and the outer side of the head support (18), and the rotating rod (9) is rotatably connected with the inner side wall of the head support (18).