Closed-loop controlled intelligent sedation depth and delirium detector

Abstract

The invention discloses a closed-loop controlled intelligent sedation depth and delirium detector, and relates to the field of clinical assistance, the closed-loop controlled intelligent sedation depth and delirium detector comprises a head-mounted mechanism, the head-mounted mechanism comprises a cap body, and a semi-arc ring is arranged below the cap body; according to the intelligent sedation depth and delirium detector, the electrode plates are pre-arranged in the containing groove and then are led out in order through the signal line, traditional scattered pasting is avoided, and the wearing efficiency and the positioning consistency are improved; the supporting mechanism realizes rapid height adjustment and locking by virtue of a vertical rod, a limiting rod, a limiting hole and a reset spring, and a camera can be accurately mounted and firmly fixed without a tool in cooperation with a rapid clamping structure consisting of an arc-shaped clamp, a spring damper and a deflector rod and a horizontal fine adjustment capability provided by a magnetic block and an adaptive groove; the electrodes and the camera share the same head-mounted platform, and the spatial relationship of the electrodes and the camera is fixed, so that the relative position can be kept stable even if the patient slightly moves.

Description

Technical Field

[0001] This invention relates to clinical auxiliary technologies, specifically to a closed-loop controlled intelligent sedation depth and delirium detection instrument. Background Technology

[0002] The closed-loop controlled intelligent sedation depth and delirium detection device is an advanced medical device that integrates multimodal physiological signal acquisition, artificial intelligence analysis and automatic drug regulation. Its core lies in accurately assessing the patient's sedation depth and identifying delirium at an early stage by monitoring key indicators such as brain electrical activity and eye movement in real time, and automatically adjusting the infusion of sedative drugs based on the assessment results, forming a closed-loop feedback control, thereby improving the safety and individualization of treatment.

[0003] Most devices currently on the market still design the electrode fixation structure and eye monitoring device as completely separate independent components: the electrodes are usually fixed to the forehead by disposable adhesive tape or simple headband, while the camera is separately mounted in front of the patient's eyes via an external bracket, bedside arm, or handheld method. This separate layout not only makes the installation process cumbersome, requiring medical staff to position, adjust, and fix the two systems separately, which is time-consuming and prone to errors; more seriously, due to the lack of structural coordination and spatial constraints between the two, electrode displacement, poor contact, or camera angle shift can easily occur when the patient slightly turns their head, coughs, or is turned over by caregivers, resulting in distortion of EEG signals or loss of eye movement data, which seriously affects the accuracy of sedation depth assessment and delirium identification.

[0004] To address these issues, the applicant proposes a closed-loop controlled intelligent sedation depth and delirium detection device. Summary of the Invention

[0005] The purpose of this invention is to provide a closed-loop controlled intelligent sedation depth and delirium detection instrument to solve the problem that current devices in the prior art often design the electrode fixing structure and eye monitoring device as separate units: the electrodes are attached by film or headband, and the camera is on a separate bracket, which is cumbersome to install and difficult to coordinate in positioning; even slight movement of the patient will cause electrode displacement or angle shift, resulting in signal distortion and seriously affecting the accuracy of sedation and delirium assessment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a closed-loop controlled intelligent sedation depth and delirium detection device, including a head-mounted mechanism, the head-mounted mechanism including a cap body, a semi-circular ring provided below the cap body, a fastening strap detachably connected to one side of the semi-circular ring, a plurality of storage slots opened on the lower surface of the semi-circular ring, a signal line provided in the inner cavity of the storage slot, and an electrode patch fixedly connected to one end of the signal line;

[0007] A support mechanism is provided on one side of the cap body. The support mechanism includes a flat plate. One side of the flat plate is fixedly connected to one side of the cap body. A metal frame is provided below the flat plate. Mounting frames are slidably connected to both sides of the inner cavity of the metal frame. Arc-shaped clips are symmetrically arranged on both sides of the inner cavity of the mounting frame. Fixing seats are fixedly connected to both sides of the outer arc surface of the arc-shaped clips. A spring damper is fixedly connected to one side of the fixing seat. One end of the spring damper is fixedly connected to the inner wall of the adjacent mounting frame.

[0008] A delivery mechanism is provided below the cap body. The delivery mechanism includes several intelligent delivery pumps, and the input end of each intelligent delivery pump is fixed and connected to an installation pipe.

[0009] Furthermore, elastic bands are fixedly connected to both ends of the fastening cord, and an insert is fixedly connected to one end of the elastic band. Slots are opened at both ends of the semi-circular ring, and one end of the insert is inserted into the corresponding slot cavity. Several connecting straps are fixedly connected to the upper surface of the semi-circular ring, and one end of the connecting strap is fixedly connected to the lower surface of the cap.

[0010] Furthermore, displacement grooves are respectively provided on the inner walls of both sides of the metal frame, and displacement blocks are respectively fixedly connected to both sides of the mounting frame, with one side of the displacement block slidably connected to the inner cavity of the corresponding displacement groove.

[0011] Furthermore, a lever is fixedly connected to one side of the outer arc surface of the arc-shaped clamp, a connecting frame is fixedly connected to one side of the mounting frame, and reinforcing ribs are fixedly connected to both sides of the connecting frame, with one side of the reinforcing rib being fixedly connected to one side of the corresponding mounting frame.

[0012] Furthermore, an adapter groove is provided at the bottom of the metal frame, and magnetic blocks are respectively provided on both sides of the inner cavity of the adapter groove. One side of the magnetic block is magnetically connected to the inner wall of one side of the adapter groove.

[0013] Furthermore, a pull rod is fixedly connected to the bottom of the magnetic block, and one end of the pull rod is fixedly connected to a handle through the side wall of the corresponding connecting frame.

[0014] Furthermore, vertical rods are fixedly connected to both sides of the top of the metal frame, and a gasket is fixedly connected to the top of the vertical rod through the side wall of the plate. Through slots are opened on both sides of the top of the plate, and a limiting rod is slidably connected to the inner cavity of the through slot. Several limiting holes are opened on one side of the vertical rod along the vertical direction of the vertical rod, and one end of the limiting rod passes through the side wall of the adjacent through slot and is inserted into the corresponding limiting hole.

[0015] Furthermore, sliding grooves are respectively provided on the inner walls of both sides of the through groove, and sliding rods are respectively fixedly connected to both sides of the limiting rod, with one side of the sliding rod slidably connected to the inner cavity of the corresponding sliding groove.

[0016] Furthermore, a return spring is fixedly connected to the other end of the limiting rod, and one end of the return spring is fixedly connected to the inner wall of the adjacent through groove.

[0017] Furthermore, a toggle piece is fixedly connected to one side of the limiting rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This solution integrates the semi-circular ring for fixing the electrode pads and the support mechanism for holding the eye-monitoring camera onto the same cap body, overcoming the cumbersome operation and positioning inaccuracies of existing split structures. The electrode pads are pre-placed in the storage slot and led out in an orderly manner through signal lines, avoiding the traditional scattered pasting and improving wearing efficiency and positioning consistency. The support mechanism uses vertical rods, limiting rods, limiting holes, and return springs to achieve rapid height adjustment and locking. Combined with the quick-release clamping structure consisting of arc-shaped clips, spring dampers, and levers, as well as the horizontal fine-tuning capability provided by magnetic blocks and adapter slots, the camera can be accurately installed and firmly fixed without tools. Since the electrodes and camera share the same head-mounted platform, their spatial relationship is fixed. Even with slight patient movement, their relative positions remain stable, avoiding signal distortion or viewing angle shift and ensuring reliable synchronization of EEG and eye movement data.

[0020] By using an adapter slot, magnetic block, and pull rod, the camera assembly can be quickly positioned and temporarily fixed horizontally by magnetically adsorbing onto the inner wall of the adapter slot. When fine-tuning the camera position is required, the operator only needs to pull the pull rod to overcome the magnetic attraction and detach the magnetic block from the inner wall of the adapter slot. This allows the camera to slide to the ideal position within the plane of the connecting frame. After adjustment, releasing the pull rod causes the magnetic block to re-adsorb onto the inner wall of the adapter slot under magnetic force, thus locking it in place. This structure eliminates the need for screws, clips, or tools, enabling stepless adjustment and instant fixation of the camera's horizontal position. This simplifies the installation and calibration process and enhances the flexibility of adapting to different patients' pupil positions. Furthermore, the magnetic connection provides cushioning, preventing the rigid structure from transmitting stress that could cause electrode or camera displacement during slight patient movement. This balances stability and safety, ensuring the continuity and accuracy of eye-tracking monitoring data. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the cap structure provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the fastening rope structure provided in an embodiment of the present invention;

[0025] Figure 4 A cross-sectional view of a semi-circular ring provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the metal frame structure provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the magnetic block structure provided in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of a through-slot structure provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Infusion Mechanism; 101. Mounting Tube; 102. Intelligent Infusion Pump; 2. Headgear Mechanism; 201. Cap Body; 202. Semi-circular Ring; 203. Connecting Strap; 204. Fastening Strap; 205. Elastic Band; 206. Insert Block; 207. Slot; 208. Storage Slot; 209. Signal Cable; 210. Electrode Patches; 3. Support Mechanism; 301. Flat Plate; 302. Metal Frame; 303. Mounting frame; 304, displacement groove; 305, arc-shaped clamp; 306, fixing base; 307, spring damper; 308, lever; 309, connecting frame; 310, reinforcing rib; 311, adapter groove; 312, magnetic block; 313, pulling rod; 314, vertical rod; 315, through groove; 316, limiting rod; 317, limiting hole; 318, return spring; 319, slide rod; 320, slide groove. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] As attached Figure 1 To be continued Figure 7 As shown:

[0033] Example 1:

[0034] This invention provides a closed-loop controlled intelligent sedation depth and delirium detection device, including a plate 301, one side of the plate 301 is fixedly connected to one side of the cap 201, a metal frame 302 is provided below the plate 301, and mounting frames 303 are slidably connected to both sides of the inner cavity of the metal frame 302. Arc-shaped clips 305 are symmetrically arranged on both sides of the inner cavity of the mounting frame 303, and fixing seats 306 are fixedly connected to both sides of the outer arc surface of the arc-shaped clips 305. A spring damper 307 is fixedly connected to one side of the fixing seat 306, and one end of the spring damper 307 is fixedly connected to the inner wall of the adjacent mounting frame 303.

[0035] Below the cap 201 is an infusion mechanism 1, which includes several intelligent infusion pumps 102. The input end of each intelligent infusion pump 102 is fixed and connected to an installation pipe 101.

[0036] The two ends of the fastening cord 204 are respectively fixedly connected to the elastic band 205, and one end of the elastic band 205 is fixedly connected to the insert block 206. The two ends of the semi-circular ring 202 are respectively provided with slots 207. One end of the insert block 206 is inserted into the inner cavity of the corresponding slot 207. Several connecting straps 203 are fixedly connected to the upper surface of the semi-circular ring 202, and one end of the connecting strap 203 is fixedly connected to the lower surface of the cap body 201.

[0037] Working principle: When personnel need to use this closed-loop controlled intelligent sedation depth and delirium detector, firstly, the electrode patch 210 is placed into the cavity of the storage groove 208 opened on the lower surface of the semi-circular ring 202, and one end of the signal line 209 connected to the electrode patch 210 is led out through the through hole reserved in the inner wall of the storage groove 208. Then, the extended end of the signal line 209 is plugged into the input terminal of the external ECG or EEG monitoring equipment. Subsequently, the cap 201 is put on the patient's head, so that the semi-circular ring 202 naturally fits the area below the patient's forehead. The operator takes out each electrode patch 210 from the storage groove 208 in turn and accurately attaches it to the corresponding standard electrode position on the patient's forehead. Then, the operator uses a fastening rope to secure the device. The elastic band 205 connected at both ends of the belt 204 and its end plug 206 are inserted into the slots 207 at both ends of the semi-circular ring 202, thus completing the stable fixation of the headgear 2 on the patient's head. The connecting band 203 serves to assist in connecting the cap body 201 and the semi-circular ring 202, ensuring the integrity of the structure. Subsequently, the operator adjusts the support mechanism 3 according to the patient's facial contours and eye position: both hands simultaneously move the limiting rod 316 to overcome the elastic force of the return spring 318 and move it inward, releasing the insertion relationship between the limiting rod 316 and the corresponding limiting hole 317 on the vertical rod 314. At this time, the vertical rod 314 can slide up and down in the through groove 315 of the flat plate 301, driving the metal connected at its bottom. The frame 302 is displaced vertically. After the operator pushes the metal frame 302 to the desired eye height position for the camera, they release the limiting rod 316. Under the return action of the return spring 318, the limiting rod 316 re-inserts into the limiting hole 317 corresponding to the current height, thus locking the metal frame 302 vertically. Next, the operator aligns the camera used to monitor eye movement between the two arc-shaped clips 305 inside the mounting frame 303. Simultaneously, both hands pull the lever 308 outwards, causing the arc-shaped clips 305 to overcome the resistance of the spring damper 307 and open outwards. After placing the camera between the two arc-shaped clips 305, the operator releases the lever 308, and the spring damper 307... Under the reset force of 7, the arc-shaped clamp 305 clamps the outer wall of the camera inward, achieving fast, stable, and tool-free clamping and fixing; subsequently, if it is necessary to fine-tune the horizontal position of the camera, the operator can pull the pull rod 313 to drive the magnetic block 312 to disengage from the magnetic adsorption of the inner wall of the adapter slot 311, so that the entire camera assembly can slide and adjust in the plane formed by the connecting frame 309 and the metal frame 302. After the camera is accurately aligned with the center of the patient's pupil, push the pull rod 313 to make the magnetic block 312 re-adsorb onto the inner wall of the adapter slot 311, completing the horizontal positioning and locking; at this point, the electrode patch 210 and the eye monitoring camera are both integrated on the same head-mounted mechanism 2, and their positions are coordinated and the structure is stable;After the system is started, the EEG signals collected by the electrode patch 210 are transmitted to the main control unit via the signal line 209. The camera simultaneously collects eye movement and pupil response data. The intelligent algorithm integrates multimodal information in real time to assess the depth of sedation and the risk of delirium, and sends control commands to the intelligent infusion pump 102 in the infusion mechanism 1. The latter automatically adjusts the infusion rate of sedative drugs through the installation tube 101, forming a complete perception-analysis-intervention closed loop.

[0038] This solution uses electrode patches 210 pre-placed in the storage slot 208 and orderly led out via signal lines 209, avoiding the tedious operation of sporadically pasting electrodes in traditional methods, thus improving wearing efficiency and electrode positioning consistency. Secondly, the support mechanism 3, through a height-adjustable locking structure consisting of a vertical rod 314, a limiting rod 316, a limiting hole 317, and a return spring 318, and a quick-installation clamping mechanism consisting of an arc-shaped clip 305, a spring damper 307, and a lever 308, combined with the horizontal fine-tuning function achieved by the magnetic block 312 and the adapter slot 311, allows the camera to be quickly installed without tools. Precise alignment and secure fixation significantly simplify the deployment process of the eye-tracking monitoring module. More importantly, the electrodes and camera share the same head-mounted platform, and the two have a defined geometric relationship in space. Even if the patient makes slight head movements, the electrodes and camera can still maintain a stable relative position, avoiding signal distortion or viewing angle shift caused by the displacement of the separate structures, thus ensuring the synchronization and reliability of EEG and eye-tracking data. In addition, the coordinated design of the fastening strap 204, elastic band 205, insert 206 and slot 207 takes into account both wearing comfort and fixation, and is suitable for patients with different head circumferences.

[0039] Example 2:

[0040] This embodiment is basically the same as the previous embodiment, except that displacement grooves 304 are respectively provided on the inner walls of both sides of the metal frame 302, and displacement blocks are fixedly connected to both sides of the mounting frame 303, and one side of the displacement block is slidably connected to the inner cavity of the corresponding displacement groove 304.

[0041] A lever 308 is fixedly connected to one side of the outer arc surface of the arc-shaped clamp 305, and a connecting frame 309 is fixedly connected to one side of the mounting frame 303. Reinforcing ribs 310 are fixedly connected to both sides of the connecting frame 309, and one side of the reinforcing rib 310 is fixedly connected to one side of the corresponding mounting frame 303.

[0042] The bottom of the metal frame 302 is provided with an adapter groove 311. Magnetic blocks 312 are respectively provided on both sides of the inner cavity of the adapter groove 311. One side of the magnetic block 312 is magnetically connected to one side of the inner wall of the adapter groove 311.

[0043] Working principle: Elastic bands 205 are fixedly connected to both ends of the fastening cord 204. An insert block 206 is fixedly connected to one end of each elastic band 205. Slots 207 are provided at both ends of the semi-circular ring 202. One end of the insert block 206 is inserted into the corresponding slot 207. Several connecting straps 203 are fixedly connected to the upper surface of the semi-circular ring 202. One end of each connecting strap 203 is fixedly connected to the lower surface of the cap body 201. The operator can quickly put on and take off the headgear 2 on the patient's head by inserting and removing the insert blocks 206, and the headgear is lifted by the elastic bands 205. The system provides appropriate tension to accommodate different head circumferences, while the connecting strap 203 maintains the overall structural stability of the cap body 201 and the semi-circular ring 202, achieving the effects of easy wearing, reliable fixation, and wide adaptability. Displacement grooves 304 are respectively formed on the inner walls of both sides of the metal frame 302, and displacement blocks are fixedly connected to both sides of the mounting frame 303. One side of each displacement block is slidably connected to the inner cavity of the corresponding displacement groove 304. The mounting frame 303 can slide smoothly inside the metal frame 302 along the direction of the displacement groove 304, providing lateral or longitudinal fine-tuning for the arc-shaped clip 305 and the camera it holds. The design optimizes camera installation flexibility and alignment accuracy. A lever 308 is fixedly connected to one side of the outer arc surface of the arc-shaped clamp 305. A connecting frame 309 is fixedly connected to one side of the mounting frame 303. Reinforcing ribs 310 are fixedly connected to both sides of the connecting frame 309. One side of each reinforcing rib 310 is fixedly connected to a corresponding side of the mounting frame 303. Operators can open or close the arc-shaped clamp 305 by moving the lever 308 to clamp or release the camera. The reinforcing ribs 310 enhance the structural rigidity between the connecting frame 309 and the mounting frame 303. To prevent deformation under stress, the camera can be quickly installed and removed while maintaining a stable and durable structure. An adapter groove 311 is provided at the bottom of the metal frame 302. Magnetic blocks 312 are respectively provided on both sides of the inner cavity of the adapter groove 311. One side of the magnetic block 312 is magnetically connected to the inner wall of one side of the adapter groove 311. The magnetic block 312 can be attracted to the inner wall of the adapter groove 311 to temporarily position and lock the camera assembly in the horizontal direction. When adjustment is needed, only external force needs to be applied to release the magnetic attraction. This achieves the effect of convenient fine-tuning of the camera position, stable positioning, and no need for an additional locking mechanism.

[0044] Example 3:

[0045] This embodiment is basically the same as the previous embodiment, except that a pull rod 313 is fixedly connected to the bottom of the magnetic block 312, and a handle is fixedly connected to one end of the pull rod 313 through the side wall of the corresponding connecting frame 309.

[0046] Vertical rods 314 are fixedly connected to both sides of the top of the metal frame 302. A gasket is fixedly connected to the top of the vertical rods 314 through the side wall of the plate 301. A through groove 315 is opened on both sides of the top of the plate 301. A limiting rod 316 is slidably connected to the inner cavity of the through groove 315. Several limiting holes 317 are opened on one side of the vertical rod 314 and along the vertical direction of the vertical rod 314. One end of the limiting rod 316 passes through the side wall of the adjacent through groove 315 and is inserted into the corresponding limiting hole 317.

[0047] The inner walls of the two sides of the through groove 315 are respectively provided with sliding grooves 320, and the two sides of the limiting rod 316 are respectively fixedly connected with sliding rods 319, and one side of the sliding rod 319 is slidably connected to the inner cavity of the corresponding sliding groove 320.

[0048] The other end of the limiting rod 316 is fixedly connected to a return spring 318, and one end of the return spring 318 is fixedly connected to the inner wall of the adjacent through groove 315.

[0049] A toggle piece is fixedly connected to one side of the limit rod 316.

[0050] Working principle: A pull rod 313 is fixedly connected to the bottom of the magnetic block 312. One end of the pull rod 313 passes through the side wall of the corresponding connecting frame 309 and is fixedly connected to a handle. The operator can pull or push the pull rod 313 by holding the handle to make the magnetic block 312 detach from or adhere to the inner wall of the matching groove 311, realizing the controllable switching of the magnetic attraction state. This achieves the effect of easy and intuitive horizontal adjustment of the camera, which is easy to complete with one hand. Slide grooves 320 are opened on both sides of the inner wall of the through groove 315. Slide rods 319 are fixedly connected to both sides of the limiting rod 316. One side of the slide rod 319 is slidably connected to the inner cavity of the corresponding slide groove 320. When the limiting rod 316 moves in the through groove 315, the slide rod 319 slides along the guide of the slide groove 320, which restricts its deflection or shaking. This ensures that the limiting rod 316 can be accurately aligned and inserted into the limiting hole 317, achieving the effect of smooth limiting operation, high repeatability and stable operation.

[0051] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A closed-loop controlled intelligent sedation depth and delirium detection device, comprising a head-mounted mechanism (2), characterized in that, The headgear (2) includes a cap body (201), a semi-circular ring (202) is provided below the cap body (201), a fastening strap (204) is detachably connected to one side of the semi-circular ring (202), and a plurality of storage slots (208) are provided on the lower surface of the semi-circular ring (202). A signal line (209) is provided in the inner cavity of the storage slot (208), and an electrode patch (210) is fixedly connected to one end of the signal line (209). A support mechanism (3) is provided on one side of the cap body (201). The support mechanism (3) includes a plate (301). One side of the plate (301) is fixedly connected to one side of the cap body (201). A metal frame (302) is provided below the plate (301). Mounting frames (303) are slidably connected to both sides of the inner cavity of the metal frame (302). Arc-shaped clips (305) are symmetrically arranged on both sides of the inner cavity of the mounting frame (303). Fixing seats (306) are fixedly connected to both sides of the outer arc surface of the arc-shaped clips (305). A spring damper (307) is fixedly connected to one side of the fixing seat (306). One end of the spring damper (307) is fixedly connected to the inner wall of the adjacent mounting frame (303). The cap (201) is provided with an infusion mechanism (1) below it. The infusion mechanism (1) includes several intelligent infusion pumps (102). The input end of the intelligent infusion pump (102) is fixed and connected to the installation pipe (101).

2. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 1, characterized in that, The two ends of the fastening cord (204) are respectively fixedly connected to elastic bands (205), and one end of the elastic band (205) is fixedly connected to a plug (206). The two ends of the semi-circular ring (202) are respectively provided with slots (207). One end of the plug (206) is inserted into the inner cavity of the corresponding slot (207). Several connecting straps (203) are fixedly connected to the upper surface of the semi-circular ring (202), and one end of the connecting strap (203) is fixedly connected to the lower surface of the cap body (201).

3. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 1, characterized in that, The inner walls of the two sides of the metal frame (302) are respectively provided with displacement grooves (304), and the two sides of the mounting frame (303) are respectively fixedly connected with displacement blocks, and one side of the displacement block is slidably connected to the inner cavity of the corresponding displacement groove (304).

4. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 3, characterized in that, A lever (308) is fixedly connected to one side of the outer arc surface of the arc-shaped clamp (305), a connecting frame (309) is fixedly connected to one side of the mounting frame (303), and reinforcing ribs (310) are fixedly connected to both sides of the connecting frame (309). One side of the reinforcing rib (310) is fixedly connected to one side of the corresponding mounting frame (303).

5. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 4, characterized in that, The bottom of the metal frame (302) is provided with an adapter groove (311), and magnetic blocks (312) are respectively provided on both sides of the inner cavity of the adapter groove (311). One side of the magnetic block (312) is magnetically connected to one side of the inner wall of the adapter groove (311).

6. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 5, characterized in that, The bottom of the magnetic block (312) is fixedly connected to a pull rod (313), and one end of the pull rod (313) is fixedly connected to a handle through the side wall of the corresponding connecting frame (309).

7. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 6, characterized in that, The metal frame (302) has vertical rods (314) fixedly connected to both sides of the top. The top of the vertical rods (314) is fixedly connected to a gasket through the side wall of the plate (301). The plate (301) has through slots (315) on both sides of the top. The inner cavity of the through slots (315) is slidably connected to a limiting rod (316). A number of limiting holes (317) are opened on one side of the vertical rods (314) and along the vertical direction of the vertical rods (314). One end of the limiting rod (316) passes through the side wall of the adjacent through slots (315) and is inserted into the corresponding limiting hole (317).

8. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 7, characterized in that, The inner walls of the two sides of the through groove (315) are respectively provided with sliding grooves (320), and the two sides of the limiting rod (316) are respectively fixedly connected with sliding rods (319). One side of the sliding rod (319) is slidably connected to the inner cavity of the corresponding sliding groove (320).

9. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 8, characterized in that, The other end of the limiting rod (316) is fixedly connected to a reset spring (318), and one end of the reset spring (318) is fixedly connected to the inner wall of the adjacent through groove (315).

10. The intelligent sedation depth and delirium detection instrument with closed-loop control according to claim 9, characterized in that, A toggle piece is fixedly connected to one side of the limiting rod (316).

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