Head fixing device for non-contact examination

Abstract

The invention relates to the technical field of medical instruments, in particular to a head fixing device for non-contact examination, comprising a bottom plate detachably connected with an examination bed; the headrest part is used for supporting the head of the patient; the ear plates are symmetrically arranged on two sides of the headrest part, and the lower ends of the ear plates are fixedly connected with the bottom plate; the contact pieces are symmetrically arranged on the two sides of the headrest part, the contact pieces are in sliding connection with the bottom plate and used for making contact with the head of the patient from the two sides of the head of the patient and limiting and fixing the head of the patient, and each contact piece comprises a contact panel automatically matched with the cheek shape of the patient; the deformation control piece is used for controlling the shape of the contact panel to be fixed after the contact panel on the contact piece is matched with the cheek shape of the patient; and the driving piece is arranged on the ear plate corresponding to the contact piece and is used for driving the contact piece to be far away from or close to the head of the patient and limiting and fixing the contact piece. According to the scheme, the head of a patient can be effectively limited and prevented from moving during examination.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a head fixing device for non-contact inspection. Background Art

[0002] CT examination is a commonly used non-contact examination, which is often used to perform radiological scans on the patient's brain to assist doctors in diagnosing their condition. Usually, the patient is required to lie flat on the examination bed and then perform a radiological scan of the patient's head. If the patient's head moves during the CT scan, the image generated by the computer after scanning the patient's head will appear blurry, which will not help the doctor to judge the patient's condition. To prevent blurred imaging, the patient's head needs to be fixed and kept still during the CT scan.

[0003] The head fixing device in the prior art for solving the above-mentioned problems, such as CN 107951502 B, includes a base plate, a lifting mechanism, a fixed shaft, a pressing mechanism, a clamping mechanism, a winding bin, a winding mechanism, a first pull rope and a second pull rope. The lifting mechanism includes a piston column and a sleeve that fit together, the clamping mechanism includes a clamping plate and an ear plate, and the winding mechanism includes a first wire wheel and a second wire wheel. This solution mainly clamps the patient's head on both sides and above the patient's head, but the limiting plates in contact with the patient's head in this solution all have an elastic layer so that the patient's head still has an elastic space for movement, and the patient's head cannot be effectively limited. For example, the prior art uses a hard plate to clamp the patient's head to prevent the patient's head from moving. Since the limiting plates in contact with the patient's cheeks cannot adapt to the cheek shapes of all patients, the limiting plates on both sides are point contact with the cheeks of some patients, which will cause the patient to feel more uncomfortable or painful under the compression force, and will instead prompt the patient to resist and move more randomly, and the limiting plates in point contact with the patient's cheeks on both sides cannot limit the rotation of the patient's head. Summary of the invention

[0004] The object of the present invention is to provide a head fixing device for non-contact examination, so as to solve the technical problem that the head fixing device in the prior art cannot effectively fix the patient's head in the above background.

[0005] To achieve the above object, the basic scheme of the present invention is as follows: A head fixing device for non-contact inspection, comprising:

[0006] A bottom plate, detachably connected to the examination bed;

[0007] A headrest portion, arranged on the bottom plate, for supporting the patient's head;

[0008] Ear plates are symmetrically arranged on both sides of the headrest portion, the ear plates are vertically arranged, and the lower ends are fixedly connected to the bottom plate;

[0009] A contact piece is symmetrically arranged on both sides of the headrest portion, the contact piece is arranged between the ear plate and the headrest, the contact piece is slidably connected to the bottom plate, and is used to contact the patient's head from both sides of the patient's head and limit and fix the patient's head, and the contact piece includes a contact panel that automatically adapts to the shape of the patient's cheek;

[0010] A deformation control member, used to control the shape of the contact panel on the contact member to remain fixed when the contact panel is adapted to the shape of the patient's cheek;

[0011] The driving member is arranged on the ear plate corresponding to the contact member and is used to drive the contact member away from or close to the patient's head and to limit and fix the contact member.

[0012] In the above scheme, the deformable touch panel can automatically adapt to the patient according to the different head features of the patients. The contact area between the touch panel and the patient's face is large, so there will be no point contact between the touch panel surface and the patient's face. When limiting the patient's head, the patient's comfort is improved and the patient's resistance is reduced. After the contact plate is adapted to the shape of the patient's face, the entire contact piece is fixed relative to the base plate, which can effectively prevent the patient's head from moving during radiation scanning and improve the imaging quality after scanning.

[0013] Furthermore, the contact member also includes a horizontally arranged outer cylinder and a sliding column arranged in the outer cylinder and sealed and slidably connected to the inner wall of the outer cylinder, the outer cylinder is closed at one end away from the headrest portion, and is open at one end of the outer cylinder facing the headrest portion, and the other end of the outer cylinder is a closed end, the contact panel is arranged at the open end of the outer cylinder, and the inner cavity of the outer cylinder between the sliding column and the contact panel forms a liquid storage space, a limiting ring is fixedly connected in the liquid storage space, and the liquid storage space is filled with electrorheological fluid, and a spring is arranged between the sliding column and the closed end of the outer cylinder to force the sliding column to slide toward the headrest portion.

[0014] Furthermore, the contact panel comprises a flexible cloth layer, and the contact panel is sealed and fixedly connected to the open end of the outer cylinder to close the open end of the outer cylinder.

[0015] Furthermore, the deformation control component includes a flexible metal film 1 attached to the inner surface of the flexible cloth layer, a flexible insulating layer 1 covering the surface of the flexible metal film 1, a metal film 2 attached to the surface of the sliding column close to the headrest portion, an insulating layer 2 covering the surface of the metal film 2, an electrode 1 electrically connected to the flexible metal film 1, an electrode 2 electrically connected to the metal film 2, and a control switch for controlling the connection status between the electrode 1 and the flexible metal film 1 and between the electrode 2 and the metal film 2.

[0016] Furthermore, the headrest portion includes a support pad, a piston rod and a support cylinder, the support cylinder is vertically arranged on the base plate and fixedly connected to the base plate, the lower end of the piston rod is sealingly and slidingly connected to the inner wall of the support cylinder, the upper end of the piston rod is fixedly connected to the support pad, and the inner cavity of the support cylinder is connected to the liquid storage space in the contact pieces on both sides of the headrest portion through a connecting pipe.

[0017] Furthermore, the driving member includes a screw rod, which is arranged in a direction parallel to the axis of the outer cylinder, and the ear plate is provided with a screw hole that cooperates with the screw rod, and one end of the screw rod close to the outer cylinder is rotatably connected to the outer cylinder.

[0018] Furthermore, the upper end of the contact panel passes over the patient's cheekbone upwards so that the flexible cloth layer is deformed and fixed to restrict the patient's head from moving upwards or rotating.

[0019] Furthermore, a slide groove parallel to the axis of the outer cylinder is provided on the bottom plate, the outer cylinder is slidably connected to the bottom plate through a connecting plate, the upper end of the connecting plate is fixedly connected to the outer cylinder, and the lower end of the connecting plate is located in the slide groove and slidably connected to the bottom plate.

[0020] Furthermore, the slide groove is a T-shaped slide groove, and the lower end of the connecting plate is provided with a T-shaped sliding block that slidably cooperates with the T-shaped slide groove.

[0021] Furthermore, in order to cooperate with the sliding of the outer cylinder, the connecting pipe is configured as a hose.

[0022] When the head fixing device of the above scheme is used, the control switch is first turned off. At this time, the electrorheological fluid in the liquid storage space is in a zero electric field environment. The electrorheological fluid has the characteristics of a conventional liquid and is fluid. The liquid storage space and the inner cavity of the support tube below the piston rod are filled with electrorheological fluid. Under the elastic force of spring 1, the flexible cloth layer protrudes outward from the open end of the outer tube, and the support pad is located at a high position. The patient lies flat on the examination bed with his head resting on the support pad. Under the pressure of the patient's head, the piston rod slides downward to squeeze the electrorheological fluid in the support tube and flows through the connecting pipe to the liquid storage space in the outer tube on both sides of the patient's head. The screws on both sides of the head are rotated to make the outer tubes on both sides of the patient's head gradually approach the patient's head and make the flexible cloth layer squeeze the cheeks on both sides of the patient. The squeezed flexible cloth layer automatically deforms according to the shape of the patient's cheeks to adapt to the shape of the patient's cheeks. The flexible metal film 1 and the flexible insulating layer 1 that fit the flexible cloth layer deform with the flexible cloth layer. After the flexible cloth layer deforms appropriately, the control switch is closed to make the electrorheological fluid in the liquid storage space in the flexible metal film. In the strong electric field generated between the metal film and the metal film, the electrorheological fluid in the liquid storage space instantly hardens and becomes solid, so that the flexible cloth layer cannot be deformed after fitting the patient's cheek. Under the restriction of the limit ring in the outer tube, the hardened electrorheological fluid in the liquid storage space cannot slide in the inner cavity of the outer tube. Since the electrorheological fluid in the liquid storage space is solid and cannot flow, the piston rod in the support tube cannot slide up and down, and the support pad cannot move up and down. Under the joint restriction of the deformed and fixed flexible cloth layer and the support pad, the patient's head cannot move up and down or rotate, and the patient's head is restricted in all directions, thereby improving the quality of CT scanning imaging.

[0023] Compared with the prior art, the shape of the flexible cloth layer on both sides of the patient's head in this solution is adapted to the shape of the patient's cheeks on both sides and is solidified without a buffer layer. The support pad cannot move up and down after the position of the patient's head is fixed, and the patient's head has no room for movement in the left and right directions or the up and down directions, and the fixing effect is good; the contact area between the flexible cloth layer and the patient's face is large, so there will be no point contact between the surface of the limiting member used for limiting and the patient's face, which improves the patient's comfort and reduces the patient's resistance when limiting the patient's head; the flexible cloth layer can automatically deform to adapt to patients of different sizes and head shapes and can fit well with the user's cheeks, meeting the use of patients of different body shapes, with wide applicability and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0025] In the attached picture:

[0026] Figure 1The present invention is a schematic structural diagram of a head fixing device for non-contact inspection.

[0027] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0028] Figure 3 The present invention is a schematic structural diagram of a head fixing device for non-contact examination after clamping and limiting the patient's head.

[0029] Figure 4 for Figure 3 Enlarged view of part B in the middle.

[0030] The meanings of the symbols in the accompanying drawings are:

[0031] Bottom plate-10; ear plate-101; T-shaped slide groove-102; connecting plate-103; T-shaped slide block-104;

[0032] Headrest part-20; support pad-201; piston rod-202; support cylinder-203; connecting pipe-204;

[0033] Contact member-30; outer cylinder-301; sliding column-302; liquid storage space-303; electrorheological fluid-304; spring-305; air leakage hole-306; flexible cloth layer-307; limit ring-308;

[0034] Flexible metal film 1-41; flexible insulating layer 1-42; metal film 2-43; insulating layer 2-44;

[0035] Screw-50;

[0036] Head -60. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0039] The head fixing device for non-contact inspection in this embodiment is as follows: Figure 1-Figure 4As shown, it includes a base plate 10 detachably connected to the examination bed, a headrest portion 20 arranged on the base plate 10 for supporting a patient's head 60 lying flat, ear plates 101 symmetrically arranged on both sides of the headrest portion 20, contact members 30 symmetrically arranged on both sides of the headrest portion 20, and a driving member arranged on the ear plates 101 corresponding to the contact members 30 for driving the contact members 30 away from or close to the patient's head 60 and limiting and fixing the contact members 30, the contact members 30 are arranged between the ear plates 101 and the headrest, the contact members 30 are slidably connected to the base plate 10, the contact members 30 on both sides of the headrest portion 20 limit and fix the patient's head 60 on both sides of the patient's head 60, the contact members 30 include a contact panel that is deformable to automatically adapt to the shape of the patient's cheek, and the fixing device also includes a deformation control member for controlling the shape of the contact panel to remain fixed after the contact panel adapts to the shape of the patient's cheek.

[0040] The bottom plate 10 is a rectangular plate, the headrest portion 20 is arranged in the middle of the bottom plate 10, and two ear plates 101 are vertically symmetrically arranged on both sides of the headrest portion 20 near the two ends of the bottom plate 10 in the length direction, and the lower ends of the ear plates 101 are fixedly connected to the bottom plate 10. In this embodiment, the contact member 30 also includes a horizontally arranged outer cylinder 301 and a sliding column 302 arranged in the outer cylinder 301 and sealingly slidably connected to the inner wall of the outer cylinder 301. The shape of the outer cylinder 301 can be a square cylinder, a circular cylinder, an elliptical cylinder, or any other cylindrical shape that can be implemented. In this embodiment, the outer cylinder 301 is set as a circular cylinder, and the end of the outer cylinder 301 away from the headrest portion 20 is a closed end. The closed end of the outer cylinder 301 is provided with a The inner cavity 301 is connected to the outer space of the outer tube 301 through an air vent 306. The outer tube 301 is open toward one end of the headrest portion 20. The touch panel is arranged at the open end of the outer tube 301. The touch panel includes a flexible cloth layer 307. The flexible cloth layer 307 is a waterproof insulating cloth layer. The flexible cloth layer 307 is sealed and fixedly connected to the open end of the outer tube 301 to close the open end of the outer tube 301. When the patient lies flat on the examination bed with his head resting on the headrest portion 20, the flexible cloth layer 307 is The upper end of the outer tube 301 is located above the zygomatic bone of the patient. The inner cavity of the outer tube 301 between the sliding column 302 and the flexible cloth layer 307 forms a liquid storage space 303. The inner cavity of the outer tube 301 is fixedly connected to the liquid storage space 303. The inner cavity of the outer tube 301 is fixedly connected to the inner cavity of the outer tube 301. The outer ... When the applied electric field strength is lower than a certain critical value, the electrorheological fluid 304 is in liquid state. When the applied electric field strength is higher than the critical value, it becomes solid. A spring 305 is arranged between the sliding column 302 and the closed end of the outer tube 301 to force the sliding column 302 to slide toward the headrest portion 20. Specifically, the spring 305 is arranged horizontally, one end of the spring 305 is fixedly connected to the sliding column 302, and the other end of the spring 305 is fixedly connected to the closed end of the outer tube 301.

[0041] In this embodiment, the outer cylinder 301 is slidably connected to the bottom plate 10 via a connecting plate 103. Specifically, a TT-type slide groove 102 parallel to the axis of the outer cylinder 301 is provided on the bottom plate 10. The upper end of the connecting plate 103 is fixedly connected to the outer cylinder 301. The lower end of the connecting plate 103 is provided with a TT-type slider 104 slidably matched with the TT-type slide groove 102. The lower end of the connecting plate 103 is located in the TT-type slide groove 102 and is slidably connected to the bottom plate 10.

[0042] The headrest portion 20 includes a support pad 201, a piston rod 202 and a support cylinder 203. The support cylinder 203 is vertically arranged, and the support cylinder 203 is a circular cylindrical body with an upper end opening. A circular groove matching the support cylinder 203 is arranged on the bottom plate 10. The lower end of the support cylinder 203 is located in the circular groove on the floor and is fixedly connected to the bottom plate 10. The lower end of the piston rod 202 is located in the support cylinder 203 and is sealed and slidably connected to the inner wall of the support cylinder 203. The upper end of the piston rod 202 is directed to the bottom plate 10. A support cylinder 203 extends upward, and the support pad 201 is fixedly connected to the upper end of the piston rod 202. The inner cavity of the support cylinder 203 below the piston rod 202 is connected to the liquid storage space 303 in the outer cylinder 301 on both sides of the headrest part 20 through connecting tubes 204 respectively. The connecting tube 204 is a hose, and one end of the connecting tube 204 is sealed and connected to the inner cavity of the support cylinder 203 below the piston rod 202, and the other end of the connecting tube 204 is sealed and connected to the liquid storage space 303 in the corresponding outer cylinder 301.

[0043] The deformation control member includes a flexible metal film 1 41 attached to the inner surface of the flexible cloth layer 307, a flexible insulating layer 1 42 covering the surface of the flexible metal film 1 41, a metal film 2 43 attached to the surface of the slide column 302 close to the headrest portion 20, an insulating layer 2 44 covering the surface of the metal film 2 43, an electrode 1 (not shown) electrically connected to the flexible metal film 1 41, an electrode 2 (not shown) electrically connected to the metal film 2 43, and a control member for controlling the connection between the electrode 1 and the flexible metal film 1 41 and between the electrode 2 and the headrest portion 20. A control switch (not shown) for controlling the connection state of the metal film 43 is provided. In this embodiment, the electrode 1 and the electrode 2 are arranged at a position outside the base plate 10 for convenient implementation. The electrode 1 is electrically connected to the flexible metal film 1 41 through a soft wire, and the electrode 2 is electrically connected to the metal film 2 43 through a soft wire. The control switch can be arranged at a position convenient for the operator to control without restriction. When the control switch is closed, an electric field strength sufficient to change the electrorheological fluid 304 in the liquid storage space 303 from liquid to solid is generated between the flexible metal film 1 41 and the metal film 2 43.

[0044] The driving member includes a screw 50, which is arranged in a direction parallel to the axis of the outer cylinder 301. The ear plate 101 is provided with a screw hole that cooperates with the screw 50. A bidirectional thrust bearing is provided at one end of the screw 50 close to the outer cylinder 301 so that the screw 50 is rotatably connected to the outer cylinder 301.

[0045] When using this solution, first put the control switch in the off state. At this time, the electrorheological fluid 304 in the liquid storage space 303 is in a zero electric field environment. The electrorheological fluid 304 has the characteristics of a conventional liquid and is fluid. The liquid storage space 303 and the inner cavity of the support tube 203 below the piston rod 202 are filled with the electrorheological fluid 304. Under the elastic force of the spring 1 305, the flexible cloth layer 307 protrudes outward from the open end of the outer tube 301, and the support cushion is in a high position. The patient lies flat on the examination bed with his head resting on the support cushion. Under the pressure of the patient's head 60, the piston rod 202 slides downward to squeeze the electrorheological fluid 304 in the support tube 203 to flow through the connecting tube 204 to the liquid storage space 303 in the outer tube 301 on both sides of the patient's head 60. The screws 50 on both sides of the head 60 are rotated to make the outer tube 301 on both sides of the patient's head 60 gradually approach the patient's head 60 and make the flexible cloth layer 307 squeeze the cheeks on both sides of the patient. Figure 3 , Figure 4 As shown, the squeezed flexible cloth layer 307 automatically deforms according to the shape of the patient's cheek to adapt to the shape of the patient's cheek, and the flexible metal film 1 41 and the flexible insulating layer 1 42 that are in contact with the flexible cloth layer 307 are deformed along with the flexible cloth layer 307. After the flexible cloth layer 307 is deformed appropriately, the control switch is closed so that the electrorheological fluid 304 in the liquid storage space 303 is in the strong electric field generated between the flexible metal film 1 41 and the metal film 2 43. The electrorheological fluid 304 in the liquid storage space 303 instantly hardens and becomes solid, so that the flexible cloth layer 307 cannot be deformed after being in contact with the patient's cheek. Under the restriction of the limit ring 308 in the cylinder 301, the hardened electrorheological fluid 304 in the liquid storage space 303 cannot slide in the inner cavity of the outer cylinder 301. Since the electrorheological fluid 304 in the liquid storage space 303 is solid and cannot flow, the piston rod 202 in the support cylinder 203 cannot slide up and down, and the support pad 201 cannot move up and down. Under the joint restriction of the deformed and fixed flexible cloth layer 307 and the support pad 201, the patient's head 60 cannot move up and down or rotate, and the patient's head 60 is restricted in all directions, thereby improving the quality of CT scanning imaging.

[0046] The above are only embodiments of the present invention, and the common knowledge such as the known specific structures and characteristics in the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A head fixing device for non-contact inspection, characterized in that: include: A bottom plate, detachably connected to the examination bed; A headrest portion, arranged on the bottom plate, for supporting the patient's head; Ear plates are symmetrically arranged on both sides of the headrest portion, and the ear plates are fixedly connected to the bottom plate; A contact piece is symmetrically arranged on both sides of the headrest portion, the contact piece is arranged between the ear plate and the headrest, the contact piece is slidably connected to the bottom plate, and is used to contact the patient's head from both sides and limit and fix the patient's head, and the contact piece has a contact panel that automatically adapts to the shape of the patient's cheek; A deformation control member, used to control the shape of the touch panel to remain fixed after the touch panel is adapted to the shape of the patient's cheek; The driving member is arranged on the ear plate corresponding to the contact member and is used to drive the contact member away from or close to the patient's head and to limit and fix the contact member.

2. The head fixing device for non-contact inspection according to claim 1, characterized in that: The contact piece also includes a horizontally arranged outer cylinder and a sliding column arranged in the outer cylinder and sealed and slidably connected to the inner wall of the outer cylinder. One end of the outer cylinder facing the headrest portion is open, and the end of the outer cylinder away from the headrest portion is a closed end. The contact panel is arranged at the open end of the outer cylinder. The inner cavity of the outer cylinder between the sliding column and the contact panel forms a liquid storage space. A limiting ring is fixedly connected in the liquid storage space. The liquid storage space is filled with electrorheological fluid. A spring is arranged between the sliding column and the closed end of the outer cylinder to force the sliding column to slide toward the headrest portion.

3. The head fixing device for non-contact inspection according to claim 2, characterized in that: The contact panel comprises a flexible cloth layer, and the contact panel is sealed and fixedly connected to the open end of the outer cylinder to close the open end of the outer cylinder.

4. The head fixing device for non-contact inspection according to claim 3, characterized in that: The deformation control component includes a flexible metal film 1 attached to the inner surface of the flexible cloth layer, a flexible insulating layer 1 covering the surface of the flexible metal film 1, a metal film 2 attached to the surface of the sliding column close to the headrest, an insulating layer 2 covering the surface of the metal film 2, an electrode 1 electrically connected to the flexible metal film 1, an electrode 2 electrically connected to the metal film 2, and a control switch for controlling the connection status of the electrode 1 and the flexible metal film 1, and the electrode 2 and the metal film 2.

5. The head fixing device for non-contact inspection according to claim 4, characterized in that: The headrest portion includes a support pad, a piston rod and a support cylinder. The support cylinder is vertically arranged and fixedly connected to the base plate. The lower end of the piston rod is sealingly and slidingly connected to the inner wall of the support cylinder, and the upper end of the piston rod is fixedly connected to the support pad. The inner cavity of the support cylinder is connected to the liquid storage space in the contact pieces on both sides of the headrest portion through a connecting pipe.

6. The head fixing device for non-contact inspection according to claim 2, characterized in that: The driving member comprises a screw rod, which is arranged in a direction parallel to the axis of the outer cylinder. The ear plate is provided with a screw hole matched with the screw rod, and one end of the screw rod close to the outer cylinder is rotatably connected to the outer cylinder.

7. The head fixing device for non-contact inspection according to claim 2, characterized in that: The upper end of the touch panel extends upward over the patient's cheekbone.

8. The head fixing device for non-contact inspection according to claim 2, characterized in that: The bottom plate is provided with a slide groove parallel to the axis of the outer cylinder. The outer cylinder is slidably connected to the bottom plate through a connecting plate. The upper end of the connecting plate is fixedly connected to the outer cylinder, and the lower end of the connecting plate is located in the slide groove and slidably connected to the bottom plate.

9. The head fixing device for non-contact inspection according to claim 8, characterized in that: The slide groove is a T-shaped slide groove, and the lower end of the connecting plate is provided with a T-shaped sliding block which is slidably matched with the T-shaped slide groove.

10. The head fixing device for non-contact inspection according to claim 5, characterized in that: The connecting pipe is configured as a hose.

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