Intravenous anesthesia dosage and efficacy analysis navigator

Abstract

The invention relates to the field of medical anesthesia, in particular to an intravenous anesthesia dosage and efficacy analysis navigator which comprises an infusion pump mechanism. Comprising an infusion pump body, an injector push rod penetrating through the infusion pump body, a piston caulking groove formed in the injector push rod, a needle cylinder caulking groove formed in one side of the top of the infusion pump body, and a stabilizing piece penetrating through the infusion pump body and used for fixing an injector needle cylinder. The abutting piece is arranged on the inner side of the needle cylinder embedding groove; and the monitor is electrically connected with the infusion pump mechanism for interaction and is used for controlling the injection action of the infusion pump mechanism. Through the synergistic effect of the linkage piece, the limiting piece and the control piece, rapid installation and one-hand operation of the injector are achieved, namely when the injector is placed, the cylinder body is pressed down only with one hand, the linkage piece synchronously triggers the abutting piece to complete axial locking and the stabilizing piece to complete radial pressing, and the operation process is simplified.

Description

Technical Field

[0001] This invention relates to the field of medical anesthesia, and in particular to a navigator for analyzing the dosage and efficacy of intravenous anesthetic drugs. Background Technology

[0002] The intravenous anesthetic dosage and efficacy analysis navigator is a target-controlled infusion system. The core purpose of this navigator is to achieve "precise anesthesia". It is usually composed of a monitor and an infusion pump. The monitor controls the infusion pump to achieve precise infusion of anesthetic drugs.

[0003] Existing dosage and efficacy analysis navigators have significant shortcomings in the syringe installation and fixation process. When installing the syringe, medical staff need to perform two separate operations: axial locking and radial clamping. This cannot achieve rapid installation, which can delay treatment, especially in emergency rescue scenarios. Secondly, such designs often require two-handed operation (one hand holding the syringe and the other hand performing the locking action), which cannot support efficient one-handed operation, increasing the complexity of operation and limiting the flexibility of medical staff. Therefore, a dosage and efficacy analysis navigator for intravenous anesthesia is proposed. Summary of the Invention

[0004] In view of the problem that the installation and replacement of syringes in the above or existing technologies are inconvenient to operate with one hand, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a navigator for analyzing the dosage and efficacy of intravenous anesthetic drugs.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including, An infusion pump mechanism includes an infusion pump body, a syringe plunger penetrating the infusion pump body, a piston groove formed on the syringe plunger, a syringe groove formed on one side of the top of the infusion pump body, a stabilizing member penetrating the infusion pump body for fixing the syringe syringe, and a clamping member disposed inside the syringe groove; and, The monitor is electrically connected to the infusion pump mechanism for interaction and controls the injection action of the infusion pump mechanism; Two sets of stabilizing components are symmetrically arranged. Each stabilizing component includes a hinge seat fixed to the inner wall of the infusion pump body. An insert head is rotatably embedded inside the hinge seat. A torsion spring is provided between the periphery of the insert head and the inner wall of the hinge seat. A pressure plate is connected to the outer end face of the insert head. The clamping component includes a positioning plate disposed inside the syringe groove and extending through one end into the body of the infusion pump. It can clamp the protruding edge of the syringe to achieve fixation. A compensation sleeve is sleeved on the end of the positioning plate that extends into the body of the infusion pump, and a compensation spring is disposed between the compensation sleeve and the positioning plate.

[0007] In a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, the piston groove is used to engage with and position the outer end of the syringe piston rod to ensure synchronous movement of the piston rod and the syringe plunger.

[0008] As a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, wherein: a lifting linkage is also provided through the interior of the infusion pump body; The linkage includes a lifting seat that extends through the top of the infusion pump body. A pusher is fixed to the bottom of the lifting seat, and a return spring is provided at the bottom of the pusher, which can realize the lifting and lowering movement of the lifting seat through its own elasticity.

[0009] As a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, the push platform is arranged in a frustum shape; The pusher abuts against one end of the compensation sleeve, thereby enabling the horizontal movement of the clamping member by moving the pusher downward.

[0010] As a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, wherein: a limiting member is provided on the outer side of each group of stabilizing members; The limiting component includes a first toothed disc fixed to the bottom of the outer wall of the pressure plate, a second toothed disc being fitted on the outer side of the first toothed disc, a locking shaft being fixed at the axis of the second toothed disc, a fixing seat being provided outside the locking shaft, and a clutch spring being provided between the second toothed disc and the fixing seat. The mounting base is fixed to the inner wall of the infusion pump body; The locking shaft is prismatic in shape and can rotate and lock the second toothed disc to achieve relative rotation between the second toothed disc and the first toothed disc.

[0011] In a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, the tooth surfaces of the first and second toothed discs are arranged opposite each other, and the first and second toothed discs mesh with each other to achieve unidirectional rotation restriction of the pressure plate.

[0012] In a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, the clutch spring is sleeved on the locking shaft, and the clutch spring can provide elastic support for the second toothed disc to ensure stable meshing between the second toothed disc and the first toothed disc.

[0013] As a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, each of the limiting members is provided with a control member; The control component includes a connecting frame fixed to the push platform. The upper surface of the connecting frame has a control slot, and a control rod passes through the inside of the control slot.

[0014] In a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, the control rod is fixed on the outer wall of the second toothed disc, and the second toothed disc can be driven to move along its axial direction by the control rod to change the meshing state between it and the first toothed disc.

[0015] In a preferred embodiment of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention, the control slot is arranged in a trapezoidal shape. The width of the control slot is equal to the sum of the diameter of the control rod and the maximum tooth depth of the second toothed disc.

[0016] The beneficial effects of the intravenous anesthetic dosage and efficacy analysis navigator of the present invention are as follows: Through the synergistic action of the linkage, limiting and controlling components, the syringe can be quickly installed and operated with one hand. When placing the syringe, only one hand needs to press down on the barrel to trigger the clamping component to complete axial locking and the stabilizing component to complete radial clamping. When changing the syringe, the mechanism automatically resets and locks the clamping plate in the open state after the old syringe is removed, maintaining the ready position without manual operation, which simplifies the operation process. This design allows medical staff to complete the accurate installation and fixation of the syringe with only one hand in a few seconds in emergency situations, which greatly improves the operation efficiency and emergency response capability, and increases the success rate of patient treatment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of a navigator for analyzing the dosage and efficacy of intravenous anesthesia.

[0019] Figure 2 A schematic diagram of the infusion pump mechanism in a navigator for analyzing the dosage and efficacy of intravenous anesthesia.

[0020] Figure 3 This is a schematic diagram of the internal structure of the infusion pump mechanism in a navigator for analyzing the dosage and efficacy of intravenous anesthesia.

[0021] Figure 4 This is a schematic diagram of the explosive structure of the stabilizing component in a navigator for analyzing the dosage and efficacy of intravenous anesthesia.

[0022] Figure 5 This is a schematic diagram of the explosive structure of the clamping component in a navigator for analyzing the dosage and efficacy of intravenous anesthesia.

[0023] Figure 6This is a schematic diagram of the cooperation structure between the limiting and stabilizing components in a navigator for analyzing the dosage and efficacy of intravenous anesthesia.

[0024] In the diagram: 100, Infusion pump mechanism; 101, Infusion pump body; 102, Syringe plunger; 103, Piston groove; 104, Syringe groove; 105, Stabilizer; 105a, Hinge seat; 105b, Embedded head; 105c, Torsion spring; 105d, Pressure plate; 106, Abutment; 106a, Positioning plate; 106b, Compensating sleeve; 106c, Compensating spring; 107, Linkage component; 107a, Lifting seat; 107b, Push platform; 107c, Reset spring; 108, Limiting component; 108a, First gear plate; 108b, Second gear plate; 108c, Locking shaft; 108d, Fixed seat; 108e, Clutch spring; 109, Control component; 109a, Connecting frame; 109b, Control slot; 109c, Control rod; 200, Monitor. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Example 1, referring to Figures 1-5 This is the first embodiment of the present invention, which provides a navigator for analyzing the dosage and efficacy of intravenous anesthetic drugs, which includes an infusion pump mechanism 100 and a monitor 200.

[0027] Specifically, the infusion pump mechanism 100 includes an infusion pump body 101, a syringe plunger 102 penetrating the infusion pump body 101, a piston groove 103 formed on the syringe plunger 102, a syringe groove 104 formed on one side of the top of the infusion pump body 101, a stabilizing member 105 penetrating the infusion pump body 101 for fixing the syringe syringe, and a clamping member 106 disposed inside the syringe groove 104; and, The monitor 200 is electrically connected to the infusion pump mechanism 100 for interaction and controls the injection action of the infusion pump mechanism 100. The monitor 200 has a built-in pharmacokinetic model and can calculate the real-time infusion rate command based on the patient's physiological parameters and preset target concentration. The monitor 200 sends the command to the infusion pump mechanism 100 for execution via electrical connection. The infusion pump mechanism 100 receives the command and precisely drives the syringe plunger 102 to move. This interactive control realizes the fundamental transformation of intravenous anesthesia from experience-based drug administration to precise target-controlled infusion, ensuring the stability of the depth of anesthesia.

[0028] Furthermore, two sets of stabilizing components 105 are symmetrically arranged. Each stabilizing component 105 includes a hinge seat 105a fixed to the inner wall of the infusion pump body 101. An insert head 105b is rotatably embedded inside the hinge seat 105a. A torsion spring 105c is provided between the periphery of the insert head 105b and the inner wall of the hinge seat 105a. A clamping plate 105d is connected to the outer end face of the insert head 105b. The two symmetrically arranged clamping plates 105d can use the elastic force of the torsion spring 105c to stably press the syringe barrel inside it onto the arc-shaped bearing surface at the top of the infusion pump body 101. This effectively prevents the syringe barrel from radially moving due to vibration or external force during long-term operation, avoids infusion errors caused by syringe displacement and loosening, and ensures the accuracy of drug infusion and drug efficacy analysis.

[0029] The clamping member 106 includes a positioning plate 106a disposed inside the syringe groove 104 and extending through one end into the infusion pump body 101. It can clamp the protruding edge of the syringe to achieve fixation and lock the syringe in its axial direction. A compensation sleeve 106b is sleeved on the end of the positioning plate 106a that extends into the infusion pump body 101. A compensation spring 106c is disposed between the compensation sleeve 106b and the positioning plate 106a. The compensation sleeve 106b and the compensation spring 106c constitute an adaptive compensation mechanism. Its core function is to automatically compensate for the tolerance of the protruding edge size of syringes of different brands or specifications. No matter how small the difference in the thickness of the protruding edge is, the compensation spring 106c can ensure that the positioning plate 106a always applies a stable and reliable axial clamping force, eliminating any loosening of the syringe in the axial direction.

[0030] The piston groove 103 is used to engage with and position the outer end of the syringe piston rod to ensure synchronous movement of the piston rod and the syringe plunger 102. The shape of the piston groove 103 matches the shape of the tail of the syringe piston rod. When the syringe is installed, the tail of the piston rod is embedded in the groove, forming an efficient force transmission interface. The linear thrust of the syringe plunger 102 can be directly transmitted to the piston rod through the piston groove 103, ensuring a strict linear relationship between the displacement of the plunger and the output of the drug solution.

[0031] In use, the syringe is first secured. The symmetrically arranged clamping plates 105d, under the action of the torsion spring 105c, press the syringe barrel from both sides to prevent radial movement. The clamping member 106, through the adaptive pressure of the compensating spring 106c, axially presses the syringe flange through the positioning plate 106a to ensure the stability of the syringe during infusion. Subsequently, the anesthesiologist can set the target drug concentration and the patient's individual physiological parameters on the monitor 200. The pharmacokinetic model built into the monitor 200 calculates and generates precise infusion rate commands in real time, which are transmitted to the infusion pump mechanism 100 via electrical signals. After receiving the commands, the drive unit inside the infusion pump mechanism 100 precisely controls the syringe plunger 102 to move linearly. The syringe plunger 102 is connected to the syringe piston rod through the piston groove 103 on it, and the syringe plunger 102 drives the piston to move to perform infusion.

[0032] In summary, the cooperation between the adaptively compensating clamping member 106 and the symmetrically arranged stabilizing member 105 can effectively prevent the syringe from shifting in the radial and axial directions, further avoiding infusion errors caused by loose syringe or dimensional tolerances, and significantly improving the safety and effectiveness of intravenous anesthesia.

[0033] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a linkage component 107, a limiting component 108, and a control component 109 for an intravenous anesthetic dosage and efficacy analysis navigator.

[0034] Specifically, the inside of the infusion pump body 101 is also provided with a liftable linkage 107, and each set of stabilizing members 105 is provided with a limiting member 108 on the outside, and each set of limiting members 108 is provided with a control member 109.

[0035] Furthermore, the linkage 107 includes a lifting seat 107a extending through the top of the infusion pump body 101. A pusher 107b is fixed to the bottom of the lifting seat 107a, and a return spring 107c is provided at the bottom of the pusher 107b. The pusher 107a can achieve the lifting and lowering movement of the lifting seat 107a through its own elasticity. When the syringe is inserted and the lifting seat 107a is pressed down, the lifting seat 107a drives the pusher 107b to move down and compress the return spring 107c. This is the initial working state of the mechanism. When the syringe is removed, under the restoring force of the return spring 107c, the pusher 107b and the lifting seat 107a automatically return to their original positions and move up to prepare for the next drug loading.

[0036] The limiting component 108 includes a first geared disc 108a fixed to the bottom of the outer wall of the pressure plate 105d. A second geared disc 108b is fitted on the outer side of the first geared disc 108a. A locking shaft 108c is fixed at the axis of the second geared disc 108b. The locking shaft 108c is prismatic and can rotate and lock the second geared disc 108b to achieve relative rotation between the second geared disc 108b and the first geared disc 108a. A fixing seat 108d is provided on the outside of the locking shaft 108c. The fixing seat 108d is fixed to the inner wall of the infusion pump body 101. A clutch spring 108e is provided between the second geared disc 108b and the fixing seat 108d. The clutch spring 108e is sleeved on the locking shaft 108c and can elastically support the second geared disc 108b to ensure stable meshing between the second geared disc 108b and the first geared disc 108a.

[0037] The control component 109 includes a connecting frame 109a fixed on the push table 107b. The upper surface of the connecting frame 109a is provided with a control slot 109b. A control rod 109c passes through the inside of the control slot 109b. The control rod 109c is fixed on the outer wall of the second gear disk 108b. The control rod 109c can drive the second gear disk 108b to move along its axial direction to change the meshing state between it and the first gear disk 108a.

[0038] Furthermore, the toothed ends of the first toothed disc 108a and the second toothed disc 108b are arranged opposite each other, and the first toothed disc 108a and the second toothed disc 108b mesh with each other. Their special tooth shape design allows the clamping plate 105d to rotate only in the direction away from the syringe (opening direction). Thus, when placing the syringe, the clamping plate 105d clamps the syringe through the elastic force of the torsion spring 105c. When the syringe is removed, the clamping plate 105d can open outwards simultaneously and lock under the meshing cooperation of the first toothed disc 108a and the second toothed disc 108b. This facilitates the next placement of the syringe, improves the efficiency of syringe installation and placement, enables rapid infusion, and meets the needs of medical personnel in emergency situations.

[0039] Preferably, the control slot 109b is trapezoidal. When the control slot 109b on the connecting frame 109a moves down synchronously with the push table 107b, at the end of the downward stroke of the push table 107b, the trapezoidal slope of the control slot 109b will push the control rod 109c to move horizontally, thereby overcoming the elastic force of the clutch spring 108e, pulling the second gear plate 108b away from the first gear plate 108a, releasing the one-way locking of the pressure plate 105d, and thus allowing the pressure plate 105d to move horizontally. The 05d is linked to the descent of the pusher 107b. When the pusher 107b descends, the inward rotation lock of the clamping plate 105d is released. At this time, the clamping plate 105d can rotate inward under the action of the torsion spring 105c to clamp and restrict the syringe. When the pusher 107b moves upward to reset, the control slot 109b rises accordingly. Under the action of the clutch spring 108e, the second toothed disc 108b resets and re-engages with the first toothed disc 108a, restoring the one-way locking function.

[0040] It should be noted that the width of the control slot 109b is equal to the sum of the diameter of the control rod 109c and the maximum tooth depth of the second toothed disc 108b. Thus, when the pressure plate 105d rotates outward, it can compensate for the axial movement distance of the second toothed disc 108b caused by the compression of the first toothed disc 108a, so as to ensure the smooth movement of the pressure plate 105d.

[0041] Preferably, the pusher 107b is frustum-shaped, and one end of the pusher 107b abuts against the compensation sleeve 106b. Thus, the horizontal movement of the clamping member 106 can be achieved by the downward movement of the pusher 107b, and the synchronous linkage of the stabilizing member 105 and the clamping member 106 can be achieved by the vertical movement of the linkage member 107. This can also achieve synchronous fixation of the syringe in the axial and radial directions. When the drug loading presses down on the lifting seat 107a, the frustum-shaped pusher 107b moves down, and its side will press against the end of the compensation sleeve 106b, forcing the entire clamping member 106 to move horizontally towards the syringe flange, thus completing the axial locking. At the same time, if the clamping member 106 has already pressed against the syringe flange but the pusher 107b has not yet descended to the position, the compensation sleeve 106b can press the compensation spring 106c to compensate for the descent of the pusher 107b, so as to ensure the smooth movement of the pusher 107b.

[0042] In use, when installing the syringe, first align the piston end with the piston groove 103 and simultaneously align the syringe flange with the syringe groove 104. During the lowering of the syringe, its barrel body presses down on the lifting seat 107a, causing the pusher 107b and connecting frame 109a to move downwards. During the downward movement of the pusher 107b, its frustum side pushes the compensating sleeve 106b of the clamping member 106, causing the positioning plate 106a to move horizontally until it presses against the syringe flange, completing the axial fixation; at the same time, the connecting frame 109a... When 09a moves down to the end of its stroke, that is, after the syringe is placed in place, its trapezoidal control slot 109b pushes the control rod 109c through the inclined plane, so that the second toothed disc 108b overcomes the pressure of the clutch spring 108e and disengages from the first toothed disc 108a, releasing the one-way locking of the clamping plate 105d. At this time, the clamping plate 105d rotates inward under the action of the torsion spring 105c, pressing the syringe barrel radially into the syringe groove 104, thereby achieving synchronous linkage and fixation in the axial and radial directions. When the syringe is removed, the lifting seat 107a rises under the action of the return spring 107c, the pusher 107b and the connecting frame 109a move upward, the control slot 109b releases the control rod 109c, the second gear plate 108b resets under the action of the clutch spring 108e and re-engages with the first gear plate 108a, restoring the one-way locking. At this time, the clamping plate 105d can be flipped outward and locked in the open state by the engagement of the gear plate, which facilitates the quick completion of the next drug loading.

[0043] In summary, through the coordinated action of the linkage 107, the limiting component 108, and the control component 109, rapid installation and one-handed operation of the syringe are achieved. When placing the syringe, only one hand needs to press down on the barrel to simultaneously trigger the clamping component 106 to complete axial locking and the stabilizing component 105 to complete radial clamping via the linkage 107. When changing the syringe, the mechanism automatically resets after the old syringe is removed and locks the clamping plate 105d in the open state, maintaining the ready position without manual operation, thus simplifying the operation process. This design allows medical staff to complete the precise installation and fixation of the syringe within seconds using only one hand in emergency situations, greatly improving operational efficiency and emergency response capabilities, and increasing the success rate of patient treatment.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A navigator for analyzing the dosage and efficacy of intravenous anesthetic drugs, characterized in that: include, The infusion pump mechanism (100) includes an infusion pump body (101), a syringe plunger (102) penetrating the infusion pump body (101), a piston groove (103) formed on the syringe plunger (102), a syringe groove (104) formed on one side of the top of the infusion pump body (101), a stabilizing member (105) penetrating the infusion pump body (101) for fixing the syringe syringe, and a clamping member (106) disposed inside the syringe groove (104); and, The monitor (200) is electrically connected to the infusion pump mechanism (100) for interaction and controls the injection action of the infusion pump mechanism (100); Two sets of stabilizing components (105) are symmetrically arranged. Each stabilizing component (105) includes a hinge seat (105a) fixed to the inner wall of the infusion pump body (101). An insert head (105b) is rotatably embedded inside the hinge seat (105a). A torsion spring (105c) is provided between the periphery of the insert head (105b) and the inner wall of the hinge seat (105a). A pressure plate (105d) is connected to the outer end face of the insert head (105b). The clamping member (106) includes a positioning plate (106a) disposed inside the syringe groove (104) and extending through one end into the infusion pump body (101), which can clamp the syringe protrusion to achieve fixation. A compensation sleeve (106b) is sleeved on one end of the positioning plate (106a) extending into the infusion pump body (101), and a compensation spring (106c) is provided between the compensation sleeve (106b) and the positioning plate (106a).

2. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 1, characterized in that: The piston groove (103) is used to engage with and position the outer end of the syringe piston rod to ensure the synchronous movement of the piston rod and the syringe plunger (102).

3. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 1 or 2, characterized in that: The inside of the infusion pump body (101) is also provided with a liftable linkage (107). The linkage (107) includes a lifting seat (107a) that extends through the top of the infusion pump body (101). A pusher (107b) is fixed to the bottom of the lifting seat (107a). A return spring (107c) is provided at the bottom of the pusher (107b), which can realize the lifting movement of the lifting seat (107a) through its own elasticity.

4. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 3, characterized in that: The pusher (107b) is arranged in the shape of a frustum; The pusher (107b) abuts against one end of the compensation sleeve (106b), thereby enabling the horizontal movement of the clamping member (106) by the downward movement of the pusher (107b).

5. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 1, characterized in that: Each of the aforementioned stabilizing members (105) is provided with a limiting member (108) on its outer side. The limiting member (108) includes a first gear disc (108a) fixed to the bottom of the outer wall of the pressure plate (105d), a second gear disc (108b) is provided on the outer side of the first gear disc (108a), a locking shaft (108c) is fixed at the axis of the second gear disc (108b), a fixing seat (108d) is provided on the outside of the locking shaft (108c), and a clutch spring (108e) is provided between the second gear disc (108b) and the fixing seat (108d). The mounting base (108d) is fixed to the inner wall of the infusion pump body (101); The locking shaft (108c) is prismatic in shape and can rotate and lock the second toothed disc (108b) to achieve relative rotation between the second toothed disc (108b) and the first toothed disc (108a).

6. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 5, characterized in that: The toothed ends of the first toothed disc (108a) and the second toothed disc (108b) are arranged opposite each other, and the first toothed disc (108a) and the second toothed disc (108b) mesh with each other to achieve unidirectional rotation restriction of the pressure plate (105d).

7. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 5, characterized in that: The clutch spring (108e) is sleeved on the locking shaft (108c). The clutch spring (108e) can provide elastic support for the second gear plate (108b) to ensure stable meshing between the second gear plate (108b) and the first gear plate (108a).

8. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 5, characterized in that: Each of the aforementioned limiting members (108) is provided with a control member (109); The control component (109) includes a connecting frame (109a) fixed on the push table (107b). The upper surface of the connecting frame (109a) is provided with a control slot (109b), and a control rod (109c) passes through the inside of the control slot (109b).

9. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 8, characterized in that: The control rod (109c) is fixed on the outer wall of the second gear plate (108b). The control rod (109c) can drive the second gear plate (108b) to move along its axial direction to change the meshing state between it and the first gear plate (108a).

10. The intravenous anesthetic dosage and efficacy analysis navigator as described in claim 8, characterized in that: The control slot (109b) is trapezoidal in shape; The width of the control slot (109b) is equal to the sum of the diameter of the control rod (109c) and the maximum tooth depth of the second toothed disc (108b).

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