Device and method for rapidly infusing analgesic medicine for obstetrical anesthesia

Abstract

The invention relates to the technical field of rapid analgesic medicine infusion equipment, in particular to a rapid analgesic medicine infusion device and method for obstetrical anesthesia, and the rapid analgesic medicine infusion device comprises a display screen, an arrangement structure, an injection hose, a first bearing limiting structure and a second bearing limiting structure, and the rear end of the second bearing limiting structure is fixedly connected with a medicine pushing structure; a first bearing limiting structure is fixedly connected to the medicine pushing structure, injectors are arranged on the first bearing limiting structure and the second bearing limiting structure, injection hoses are arranged at the side ends of the injectors in a communicating mode, the side ends of the injection hoses and the arrangement structure are arranged in a winding mode, a machine base is fixedly connected to the rear end of the medicine pushing structure, and a display screen and control keys are installed on the machine base. The display screen and the control key control operation of the arrangement structure and the medicine pushing structure, and a wire holder is arranged at the rear end of the machine base; and the arrangement structure is used for guiding and arranging the injection hoses. Through the arrangement of the structure, the analgesic medicine can be conveniently and rapidly infused.

Description

Technical Field

[0001] The present invention relates to the technical field of analgesic drug rapid infusion equipment, in particular to a device and method for rapidly infusing analgesic drugs for obstetric anesthesia. Background Art

[0002] When the rapid infusion device for analgesic drugs used in obstetric anesthesia is working, the single-chip computer system sends a control pulse to rotate the stepper motor, and the stepper motor drives the lead screw to convert the rotational motion into linear motion, pushing the piston of the syringe for injection and infusion, achieving high-precision, smooth and pulsation-free liquid transmission. The injection speed can be set by the operator through keyboard operation. After the injection pump is started, the CPU uses D / A conversion to provide motor drive voltage. The motor rotation detection circuit is a set of photoelectric coupling circuits, which generates a pulse signal through the rotation of the motor. This pulse signal is fed back to the CPU, and the CPU controls the motor voltage based on this feedback to obtain the set speed.

[0003] At present, the existing rapid infusion device for obstetric anesthesia analgesic drugs is not convenient to push back and forth during use, which easily leads to blood reflux. At the same time, it cannot effectively perform the sorting work, making the injection hose easy to get tangled. At the same time, this solution adopts a gear structure, which can perform the drug pushing process more regularly, and therefore improves the above problems. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a device and method for rapid infusion of analgesic drugs for obstetric anesthesia.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a rapid infusion device for analgesic drugs for obstetric anesthesia, comprising a display screen, a collating structure, an injection hose, a first load-bearing and limiting structure, and a second load-bearing and limiting structure. The rear end of the second load-bearing and limiting structure is fixedly connected to a medicine pushing structure, the medicine pushing structure is fixedly connected to the first load-bearing and limiting structure, the first load-bearing and limiting structure and the second load-bearing and limiting structure are both provided with a syringe, the side end of the syringe is connected to a syringe hose, the side end of the syringe hose is wound around the collating structure, the rear end of the medicine pushing structure is fixedly connected to a machine base, a display screen and control buttons are installed on the machine base, the display screen and the control buttons control the operation of the collating structure and the medicine pushing structure, and the rear end of the machine base is provided with a wiring seat;

[0006] The arrangement structure is used to guide and arrange the injection hose. The first electrically controlled telescopic rod changes the position of the third electrically controlled telescopic rod through the displacement slider, so that the third electrically controlled telescopic rod follows the adjustment. The third electrically controlled telescopic rod is extended and retracted, causing the rotating guide frame to rotate around the first limit hinge rod, thereby changing the position of the docking guide rod and the contact wheel.

[0007] The first load-bearing and limiting structure is used to support the syringe, and the arc-shaped clamping plate can be inserted into the side frame. The rotating shaft drives the cam to rotate to squeeze and limit the arc-shaped clamping plate;

[0008] The medicine pushing structure is used for reciprocating medicine pushing processing. The first toothed disc drives the third toothed disc to rotate through the second toothed disc. The third toothed disc drives the first pushing frame and the second pushing frame to reciprocate through the first hinged connecting rod and the second hinged connecting rod, so that the rotating card frame follows the lateral movement to perform the pushing processing of the syringe.

[0009] Specifically, the arranging structure includes a first limit hinge rod, a third electrically-controlled telescopic rod, a rotating guide frame, a docking guide rod, a contact wheel, a displacement slider and a first electrically-controlled telescopic rod. The side end of the first electrically-controlled telescopic rod is telescopically connected to the displacement slider, the side end of the displacement slider is hingedly provided with the third electrically-controlled telescopic rod, the upper end of the third electrically-controlled telescopic rod is hingedly provided with the rotating guide frame, the side end of the rotating guide frame is hingedly provided with the first limit hinge rod, the end of the rotating guide frame facing away from the first limit hinge rod is fixedly connected to the docking guide rod, and the front end of the docking guide rod is rotatably connected to the contact wheel piece.

[0010] Specifically, the first load-bearing and limiting structure includes a slot seat, a side frame, a cam, a rotating shaft and an arc-shaped clamping plate. The slot seat is rotatably provided with an arc-shaped clamping plate, which is adapted to the side frame. The side frame is rotatably connected with a cam and a rotating shaft, and the cam is fixed to the rotating shaft.

[0011] Specifically, the medicine pushing structure includes a support plate and a front plate, and the front end of the support plate is fixedly connected to the front plate.

[0012] Specifically, the medicine pushing structure also includes a second electrically-controlled telescopic rod, a stepper motor, a first gear disc, a second gear disc, a first regulating component and a second regulating component. The side end of the second electrically-controlled telescopic rod is telescopically connected to the stepper motor, the stepper motor is driven by the first gear disc, the first gear disc is meshed with the second gear disc, the side end of the second gear disc is meshed with the second regulating component, the lower end of the second regulating component is provided with the first regulating component, the first regulating component is meshed with the second gear disc in a symmetrical position, and the second gear disc in a symmetrical position is also meshed with the first gear disc.

[0013] Specifically, the second regulating component includes a second limiting hinge, a third gear disc, a first articulated link, a second articulated link, a first propulsion frame and a second propulsion frame. The side end of the third gear disc is hinged with a first articulated link, the side end of the first articulated link is hinged with a second articulated link, the side end of the second articulated link is hinged to the first propulsion frame, the side end of the first propulsion frame is fixedly connected to the second propulsion frame, the side end of the second propulsion frame is fixedly connected to a spring support seat, the spring support seat is rotatably connected to a rotating bracket, the rear end of the spring support seat is fixedly connected to a docking base frame, the rear end of the docking base frame is hinged to the third limiting hinge, and the upper end of the third limiting hinge is hinged to the second limiting hinge.

[0014] Specifically, the rotating bracket is rotated and adjusted by a spring support seat, and four rotating brackets are provided. By flipping the rotating bracket, the medicine-pushing shaft of the syringe is limited.

[0015] Specifically, the side end of the third gear disc is meshed with the second gear disc, the upper end of the second limiting hinge rod is fixed to the machine base, a groove body for movement of the first propulsion frame and the second propulsion frame is provided on the front plate, the side end of the second electrically controlled telescopic rod is fixed to the front plate, and the rear end of the support plate is fixedly connected to the machine base.

[0016] Specifically, the slot seat is fixedly connected with a front plate, the first electrically controlled telescopic rod is supported and sleeved by the machine base, the first limiting hinge rod is fixed to the machine base, and the injection hose is separated by guiding the contact wheel.

[0017] A method for using a rapid infusion device for analgesic drugs for obstetric anesthesia, comprising the following steps:

[0018] S1. First, place the syringe on the slot seat, then rotate the arc-shaped clamping plate. The arc-shaped clamping plate is inserted into the side frame. Then, the rotating shaft is rotated, which drives the cam to rotate. The raised part of the cam contacts the arc-shaped clamping plate, squeezing and limiting the arc-shaped clamping plate. The arc-shaped clamping plate now supports and limits the syringe, and the injection hose can be connected to the syringe.

[0019] S2. Afterwards, the injection hose is guided by the arranging structure and supported by the contact wheel. The first electrically controlled telescopic rod can be controlled to extend and adjust through the display screen and control buttons, changing the position of the displacement slider, driving the third electrically controlled telescopic rod to follow and adjust, thereby controlling the movement amplitude of the rotating guide frame. After reaching the specified position, the third electrically controlled telescopic rod is adjusted to extend and adjust, driving the rotating guide frame, the docking guide rod, and the contact wheel to move. At this time, the rotating guide frame rotates around the first limit hinge rod, and the contact wheel guides and supports the injection hose.

[0020] S3. The user presses the rotating bracket in advance, causing the rotating bracket to rotate on the spring support seat to limit the position of the syringe. At this time, the second propulsion bracket drives the medicine pushing shaft on the syringe to move through the rotating bracket to push the medicine;

[0021] S4. Finally, at this time, the second electrically-controlled telescopic rod pushes the stepper motor and the first gear plate to move, so that the first gear plate is meshed with the second gear plate, and the stepper motor controls the rotation of the first gear plate, and the first gear plate drives the second gear plate to rotate and cooperate. The second gear plate is meshed with the third gear plate, which can drive the first hinged link to move in coordination, and accompanied by the forward and reverse drive of the stepper motor, the first hinged link and the second hinged link can be used to control the reciprocating motion of the first propulsion frame, thereby facilitating the reciprocating medicine pushing work. The movement of the first propulsion frame drives the second propulsion frame to follow the movement, and the movement of the first regulating component drives the third limit hinge rod to follow the cooperation. The third limit hinge rod can follow the telescopic adjustment, and at the same time, the third limit hinge rod rotates and cooperates on the second limit hinge rod to prevent jamming.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention facilitates the guiding of the injection hose through the structural setting of the sorting structure. The first electrically-controlled telescopic rod can change the position of the third electrically-controlled telescopic rod through the displacement slider. The rotating guide frame is limited by the first limiting hinge rod, and the rotating guide frame can rotate through the first limiting hinge rod. The third electrically-controlled telescopic rod is extended and retracted to make the rotating guide frame rotate and adjust around the first limiting hinge rod. At this time, the rotating guide frame changes the position of the docking guide rod and the contact wheel piece, so that the contact wheel piece drives the injection hose to move and prevents the phenomenon of tube winding. The setting of the first load-bearing and limiting structure facilitates the support of the syringe. An arc-shaped clamping plate is rotatably set on the groove seat, and the arc-shaped clamping plate can be inserted into the side frame. The rotating shaft drives the cam to follow the rotation by rotation. The cam can contact and squeeze the arc-shaped clamping plate to fix the arc-shaped clamping plate, which is convenient for the limited support of the syringe.

[0024] Second, the present invention facilitates reciprocating medicine pushing through the structural setting of the medicine pushing structure. The second electrically-controlled telescopic rod can control the displacement of the stepping motor and the first gear disc. The stepping motor drives the first gear disc to rotate, driving the second gear disc to follow the rotation. The second gear disc engages with the third gear disc, which can make the first hinged link and the second hinged link move, pulling the first propulsion frame and the second propulsion frame to move in coordination, and the rotating card frame can be rotated and adjusted by the spring support seat to limit the position of the syringe medicine pushing rod. At this time, the rotating card frame will wrap the medicine pushing rod, which can drive the medicine pushing rod to move back and forth, and the rear end of the docking base is hinged to the third limit hinge rod. The upper end of the third limit hinge rod is hinged to the second limit hinge rod, and cooperates with the displacement of the first propulsion frame and the second propulsion frame to follow the telescopic adjustment, thereby improving the support and protection capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the main body of the present invention from a side perspective;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the main body of the present invention from a rear perspective;

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of the tidying structure of the present invention from a front perspective;

[0030] Figure 5 It is a three-dimensional diagram of the first load-bearing and limiting structure in the present invention;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the medicine pushing structure of the present invention from a front perspective;

[0032] Figure 7 This is a disassembled diagram of the drug pushing structure of the present invention;

[0033] Figure 8 It is a three-dimensional diagram of the second regulating component in the present invention.

[0034] In the figure: 1-display screen, 2-arrangement structure, 3-injection hose, 4-first load-bearing and limiting structure, 5-second load-bearing and limiting structure, 6-injector, 7-push medicine structure, 8-machine base, 9-control button, 10-connection seat, 11-first limit hinge rod, 12-third electric telescopic rod, 13-rotation guide frame, 14-docking guide rod, 15-contact wheel, 16-displacement slider, 17-first electric telescopic rod, 18-slot seat, 19-side frame, 20-cam, 21-rotation shaft, 2 2-arc-shaped card plate, 23-support plate, 24-front plate, 25-second electrically controlled telescopic rod, 26-stepping motor, 27-first gear plate, 28-second gear plate, 29-first regulating component, 30-second regulating component, 31-second limiting hinge, 32-third gear plate, 33-first articulated link, 34-second articulated link, 35-first propulsion frame, 36-second propulsion frame, 37-rotating card frame, 38-spring support seat, 39-docking base frame, 40-third limiting hinge. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] Example

[0038] like Figure 1-8 As shown, a device and method for rapid infusion of analgesic drugs for obstetric anesthesia of the present invention include a display screen 1, a collating structure 2, an injection hose 3, a first load-bearing and limiting structure 4, and a second load-bearing and limiting structure 5. The rear end of the second load-bearing and limiting structure 5 is fixedly connected to a medicine pushing structure 7, and the medicine pushing structure 7 is fixedly connected to the first load-bearing and limiting structure 4. The first load-bearing and limiting structure 4 and the second load-bearing and limiting structure 5 are both provided with a syringe 6. The side end of the syringe 6 is connected to the injection hose 3, and the side end of the injection hose 3 is wound around the collating structure 2. The rear end of the medicine pushing structure 7 is fixedly connected to a machine base 8, and the machine base 8 is mounted with a display screen 1 and a control button 9. The display screen 1 and the control button 9 control the operation of the collating structure 2 and the medicine pushing structure 7. The rear end of the machine base 8 is provided with a wiring seat 10.

[0039] The arrangement structure 2 is used to guide and arrange the injection hose 3. The first electrically controlled telescopic rod 17 changes the position of the third electrically controlled telescopic rod 12 via the displacement slider 16, so that the third electrically controlled telescopic rod 12 follows the adjustment. The third electrically controlled telescopic rod 12 is extended and retracted, causing the rotating guide frame 13 to rotate around the first limit hinge rod 11, changing the position of the docking guide rod 14 and the contact wheel 15.

[0040] The first load-bearing and limiting structure 4 is used to support the syringe 6, and the arc-shaped clamping plate 22 can be inserted into the side frame 19. The rotating shaft 21 drives the cam 20 to rotate to squeeze and limit the arc-shaped clamping plate 22;

[0041] The medicine pushing structure 7 is used for reciprocating medicine pushing processing. The first toothed disc 27 drives the third toothed disc 32 to rotate through the second toothed disc 28. The third toothed disc 32 drives the first propulsion frame 35 and the second propulsion frame 36 to reciprocate through the first hinged link 33 and the second hinged link 34, so that the rotating card frame 37 follows the lateral movement to perform the pushing processing of the syringe 6.

[0042] The finishing structure 2 includes a first limit hinge 11, a third electrically-controlled telescopic rod 12, a rotating guide frame 13, a docking guide rod 14, a contact wheel 15, a displacement slider 16 and a first electrically-controlled telescopic rod 17. The side end of the first electrically-controlled telescopic rod 17 is telescopically connected to the displacement slider 16. The side end of the displacement slider 16 is hinged with the third electrically-controlled telescopic rod 12. The upper end of the third electrically-controlled telescopic rod 12 is hinged to the rotating guide frame 13. The side end of the rotating guide frame 13 is hinged with the first limit hinge 11. The end of the rotating guide frame 13 away from the first limit hinge 11 is fixedly connected to the docking guide rod 14. The front end of the docking guide rod 14 is rotatably connected There is a contact wheel 15, the injection hose 3 is guided by the sorting structure 2, and the injection hose 3 is supported by the contact wheel 15. The first electrically-controlled telescopic rod 17 can be controlled to telescopically adjust through the display screen 1 and the control button 9, and the position of the displacement slider 16 is changed to drive the third electrically-controlled telescopic rod 12 to follow the adjustment, thereby controlling the movement amplitude of the rotating guide frame 13. After reaching the specified position, the third electrically-controlled telescopic rod 12 is telescopically adjusted to drive the rotating guide frame 13, the docking guide rod 14, and the contact wheel 15 to move. At this time, the rotating guide frame 13 rotates around the first limit hinge 11, and the contact wheel 15 guides and supports the injection hose 3.

[0043] The first load-bearing and limiting structure 4 includes a slot seat 18, a side frame 19, a cam 20, a rotating shaft 21 and an arc-shaped clamping plate 22. The slot seat 18 is rotatably provided with an arc-shaped clamping plate 22, and the arc-shaped clamping plate 22 is adapted to the side frame 19. The side frame 19 is rotatably connected with a cam 20 and a rotating shaft 21. The cam 20 is fixed to the rotating shaft 21. The syringe 6 is placed on the slot seat 18, and then the arc-shaped clamping plate 22 is rotated. At this time, the arc-shaped clamping plate 22 is inserted into the inside of the side frame 19. At this time, the rotating shaft 21 is rotated. The rotating shaft 21 can drive the cam 20 to rotate. The raised part of the cam 20 contacts the arc-shaped clamping plate 22 to squeeze and limit the arc-shaped clamping plate 22. At this time, the arc-shaped clamping plate 22 supports and limits the syringe 6, and the injection hose 3 can be connected to the syringe 6.

[0044] The medicine pushing structure 7 includes a support plate 23 and a front plate 24 . The front end of the support plate 23 is fixedly connected to the front plate 24 .

[0045] The medicine pushing structure 7 also includes a second electrically-controlled telescopic rod 25, a stepping motor 26, a first gear disc 27, a second gear disc 28, a first regulating component 29 and a second regulating component 30. The side end of the second electrically-controlled telescopic rod 25 is telescopically connected to the stepping motor 26, the stepping motor 26 is driven by the first gear disc 27, the first gear disc 27 is meshed with the second gear disc 28, the side end of the second gear disc 28 is meshed with the second regulating component 30, the lower end of the second regulating component 30 is provided with a first regulating component 29, the first regulating component 29 is meshed with the second gear disc 28 in a symmetrical position, and the second gear disc 28 in a symmetrical position is also meshed with the first gear disc 27.

[0046] The second regulating component 30 includes a second limiting hinge rod 31, a third gear plate 32, a first hinge link 33, a second hinge link 34, a first propulsion frame 35 and a second propulsion frame 36. The side end of the third gear plate 32 is hinged with the first hinge link 33, the side end of the first hinge link 33 is hinged with the second hinge link 34, the side end of the second hinge link 34 is hinged with the first propulsion frame 35, the side end of the first propulsion frame 35 is fixedly connected to the second propulsion frame 36, and the second propulsion frame 35 is fixedly connected to the second propulsion frame 36. The side end of 6 is fixedly connected to a spring support seat 38, and a rotating bracket 37 is rotatably connected to the spring support seat 38. The rear end of the spring support seat 38 is fixedly connected to a docking base 39. The rear end of the docking base 39 is hinged to the third limit hinge 40. The upper end of the third limit hinge 40 is hinged to the second limit hinge 31. The second electrically controlled telescopic rod 25 drives the stepping motor 26 and the first gear disc 27 to move, so that the first gear disc 27 is engaged with the second gear disc 28, and the stepping motor 2 The second gear wheel 36 is connected with the third gear wheel 32 to drive the first hinge link 33 to move in coordination, and the first hinge link 33 and the second hinge link 34 are driven in the forward and reverse directions by the stepping motor 26 to control the reciprocating motion of the first propulsion frame 35, thereby facilitating the reciprocating drug pushing operation. The movement of the first propulsion frame 35 drives the second propulsion frame 36 to follow the movement. The user presses the rotating card frame 37 in advance so that the rotating card frame 37 rotates on the spring support seat 38 to limit the position of the syringe 6. At this time, the second propulsion frame 36 drives the drug pushing shaft on the syringe 6 to move through the rotating card frame 37 to push the drug. The movement of the first regulating component 29 drives the third limit hinge rod 40 to follow and cooperate. The third limit hinge rod 40 can follow the telescopic adjustment. At the same time, the third limit hinge rod 40 rotates and cooperates on the second limit hinge rod 31 to prevent it from getting stuck.

[0047] The rotating bracket 37 is rotated and adjusted by the spring support seat 38, and four rotating brackets 37 are provided. By turning over the rotating bracket 37, the medicine-pushing shaft of the syringe 6 is limited.

[0048] The side end of the third gear disc 32 is meshed with the second gear disc 28, the upper end of the second limit hinge 31 is fixed to the machine base 8, the front plate 24 is provided with a groove for the movement of the first propulsion frame 35 and the second propulsion frame 36, the side end of the second electrically controlled telescopic rod 25 is fixed to the front plate 24, and the rear end of the support plate 23 is fixedly connected to the machine base 8.

[0049] The front plate 24 is fixedly connected to the slot seat 18 , the first electrically controlled telescopic rod 17 is supported and sleeved by the machine base 8 , the first position-limiting hinge 11 is fixed to the machine base 8 , and the injection hose 3 is guided to separate by the contact wheel 15 .

[0050] The working principle is as follows: when in use, the user places the syringe 6 on the slot seat 18, then rotates the arc-shaped clamping plate 22, at which time the arc-shaped clamping plate 22 is inserted into the inside of the side frame 19, and then rotates the rotating shaft 21, which can drive the cam 20 to rotate. The raised part of the cam 20 contacts the arc-shaped clamping plate 22, and the arc-shaped clamping plate 22 is squeezed and limited. At this time, the arc-shaped clamping plate 22 supports and limits the syringe 6, and the injection hose 3 can be connected to the syringe 6;

[0051] The injection hose 3 is guided by the arranging structure 2 and supported by the contact wheel 15. The first electrically controlled telescopic rod 17 can be controlled to be telescopically adjusted through the display screen 1 and the control button 9, thereby changing the position of the displacement slider 16 and driving the third electrically controlled telescopic rod 12 to follow the adjustment, thereby controlling the movement amplitude of the rotating guide frame 13. After reaching the specified position, the third electrically controlled telescopic rod 12 is telescopically adjusted, driving the rotating guide frame 13, the docking guide rod 14, and the contact wheel 15 to move. At this time, the rotating guide frame 13 rotates around the first limit hinge rod 11, and the contact wheel 15 guides and supports the injection hose 3.

[0052] At this time, the second electrically controlled telescopic rod 25 pushes the stepper motor 26 and the first gear plate 27 to move, so that the first gear plate 27 is meshed with the second gear plate 28. The stepper motor 26 controls the rotation of the first gear plate 27, and the first gear plate 27 drives the second gear plate 28 to rotate and cooperate. The second gear plate 28 is meshed with the third gear plate 32, which can drive the first hinged link 33 to move in coordination. With the forward and reverse drive of the stepper motor 26, the first hinged link 33 and the second hinged link 34 can be used to control the reciprocating movement of the first propulsion frame 35, thereby facilitating the reciprocating medicine pushing work. The first propulsion frame 35 is rotated by the first hinged link 33 and the second hinged link 34. The frame 35 moves, driving the second propulsion frame 36 to follow the movement. The user presses the rotating card frame 37 in advance, so that the rotating card frame 37 rotates on the spring support seat 38 to limit the syringe 6. At this time, the second propulsion frame 36 drives the medicine pushing shaft on the syringe 6 to move by the rotating card frame 37 to push the medicine. The movement of the first regulating component 29 drives the third limit hinge 40 to follow and cooperate. The third limit hinge 40 can follow the telescopic adjustment. At the same time, the third limit hinge 40 rotates and cooperates on the second limit hinge 31 to prevent jamming and complete the work.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rapid infusion device for analgesic drugs for obstetric anesthesia, characterized by: The invention comprises a display screen (1), a arranging structure (2), an injection hose (3), a first bearing and limiting structure (4), and a second bearing and limiting structure (5). The rear end of the second bearing and limiting structure (5) is fixedly connected to a medicine pushing structure (7). The medicine pushing structure (7) is fixedly connected to the first bearing and limiting structure (4). Both the first bearing and limiting structure (4) and the second bearing and limiting structure (5) are provided with a syringe (6). The side end of the syringe (6) is connected to an injection hose (3). The side end of the injection hose (3) is wound around the arranging structure (2). The rear end of the medicine pushing structure (7) is fixedly connected to a machine base (8). The machine base (8) is provided with a display screen (1) and a control button (9). The display screen (1) and the control button (9) control the operation of the arranging structure (2) and the medicine pushing structure (7). The rear end of the machine base (8) is provided with a wiring seat (10). The arranging structure (2) is used for guiding and arranging the injection hose (3). The first electrically controlled telescopic rod (17) changes the position of the third electrically controlled telescopic rod (12) through the displacement slider (16), so that the third electrically controlled telescopic rod (12) follows the adjustment. The third electrically controlled telescopic rod (12) is extended and retracted, so that the rotating guide frame (13) rotates around the first limit hinge rod (11), thereby changing the positions of the docking guide rod (14) and the contact wheel (15). The first load-bearing and limiting structure (4) is used to support the syringe (6), and the arc-shaped clamping plate (22) can be inserted into the side frame (19). The rotating shaft (21) drives the cam (20) to rotate to perform extrusion and limiting of the arc-shaped clamping plate (22); The medicine pushing structure (7) is used for reciprocating medicine pushing processing. The first toothed disc (27) drives the third toothed disc (32) to rotate through the second toothed disc (28). The third toothed disc (32) drives the first pushing frame (35) and the second pushing frame (36) to reciprocate through the first hinged connecting rod (33) and the second hinged connecting rod (34), so that the rotating card frame (37) follows the lateral movement to perform the pushing processing of the syringe (6).

2. The device for rapid infusion of analgesic drugs for obstetric anesthesia according to claim 1, characterized in that: The arranging structure (2) comprises a first limit hinge (11), a third electrically controlled telescopic rod (12), a rotating guide frame (13), a docking guide rod (14), a contact wheel (15), a displacement slider (16) and a first electrically controlled telescopic rod (17). The side end of the first electrically controlled telescopic rod (17) is telescopically connected to the displacement slider (16). The side end of the displacement slider (16) is hingedly provided with the third electrically controlled telescopic rod (12). The upper end of the third electrically controlled telescopic rod (12) is hingedly provided with the rotating guide frame (13). The side end of the rotating guide frame (13) is hingedly provided with the first limit hinge (11). The end of the rotating guide frame (13) facing away from the first limit hinge (11) is fixedly connected to the docking guide rod (14). The front end of the docking guide rod (14) is rotatably connected to the contact wheel (15).

3. The rapid infusion device for analgesic drugs for obstetric anesthesia according to claim 2, characterized in that: The first load-bearing and limiting structure (4) comprises a slot seat (18), a side frame (19), a cam (20), a rotating shaft (21) and an arc-shaped clamping plate (22); the slot seat (18) is rotatably provided with the arc-shaped clamping plate (22); the arc-shaped clamping plate (22) is adapted to be arranged with the side frame (19); the side frame (19) is rotatably connected with the cam (20) and the rotating shaft (21); the cam (20) is fixed to the rotating shaft (21).

4. The device for rapid infusion of analgesic drugs for obstetric anesthesia according to claim 3, characterized in that: The medicine pushing structure (7) comprises a support plate (23) and a front plate (24), and the front end of the support plate (23) is fixedly connected to the front plate (24).

5. The device for rapid infusion of analgesic drugs for obstetric anesthesia according to claim 4, characterized in that: The medicine pushing structure (7) also includes a second electrically controlled telescopic rod (25), a stepping motor (26), a first toothed disc (27), a second toothed disc (28), a first regulating component (29) and a second regulating component (30). The side end of the second electrically controlled telescopic rod (25) is telescopically connected to the stepping motor (26). The stepping motor (26) is driven to be connected to the first toothed disc (27). The first toothed disc (27) is meshedly connected to the second toothed disc (28). The side end of the second toothed disc (28) is meshedly connected to the second regulating component (30). The lower end of the second regulating component (30) is provided with a first regulating component (29). The first regulating component (29) is meshedly connected to the second toothed disc (28) at a symmetrical position. The second toothed disc (28) at a symmetrical position is also meshedly connected to the first toothed disc (27).

6. The device for rapid infusion of analgesic drugs for obstetric anesthesia according to claim 5, characterized in that: The second regulating component (30) includes a second limiting hinge rod (31), a third gear plate (32), a first hinge link (33), a second hinge link (34), a first propulsion frame (35) and a second propulsion frame (36). The side end of the third gear plate (32) is hinged with the first hinge link (33), the side end of the first hinge link (33) is hinged with the second hinge link (34), the side end of the second hinge link (34) is hinged with the first propulsion frame (35), and the first The side end of the propulsion frame (35) is fixedly connected to the second propulsion frame (36), the side end of the second propulsion frame (36) is fixedly connected to the spring support seat (38), the spring support seat (38) is rotatably connected to the rotating bracket (37), the rear end of the spring support seat (38) is fixedly connected to the docking base frame (39), the rear end of the docking base frame (39) is hinged to the third limit hinge (40), and the upper end of the third limit hinge (40) is hinged to the second limit hinge (31).

7. The device for rapid infusion of analgesic drugs for obstetric anesthesia according to claim 6, characterized in that: The rotating bracket (37) is rotated and adjusted by a spring support seat (38), and the rotating bracket (37) is provided with four springs. By turning over the rotating bracket (37), the syringe (6) is limited in pushing the medicine shaft upward.

8. The device for rapid infusion of analgesic drugs for obstetric anesthesia according to claim 7, characterized in that: The side end of the third toothed disc (32) is meshedly connected with the second toothed disc (28), the upper end of the second limit hinge rod (31) is fixed to the machine base (8), the front plate (24) is provided with a groove for the first propulsion frame (35) and the second propulsion frame (36) to move, the side end of the second electric telescopic rod (25) is fixed to the front plate (24), and the rear end of the support plate (23) is fixedly connected to the machine base (8).

9. The device for rapid infusion of analgesic drugs for obstetric anesthesia according to claim 8, characterized in that: The groove seat (18) is fixedly connected to a front plate (24), the first electrically controlled telescopic rod (17) is supported and sleeved by the machine base (8), the first position-limiting hinge rod (11) is fixed to the machine base (8), and the injection hose (3) is guided and separated by a contact wheel (15).

10. A method for using a rapid infusion device for analgesics used in obstetric anesthesia, using the rapid infusion device for analgesics used in obstetric anesthesia according to claim 9, characterized in that: The following steps are involved: S1. First, place the syringe (6) on the slot seat (18), then rotate the arc-shaped card plate (22), and then the arc-shaped card plate (22) is inserted into the inside of the side frame (19). At this time, the rotating shaft (21) is rotated, and the rotating shaft (21) can drive the cam (20) to rotate. The raised part of the cam (20) contacts the arc-shaped card plate (22), and the arc-shaped card plate (22) is squeezed and limited. At this time, the arc-shaped card plate (22) supports and limits the syringe (6), and the injection hose (3) can be connected to the syringe (6); S2. Afterwards, the injection hose (3) is guided by the arranging structure (2), and the injection hose (3) is supported by the contact wheel (15). The first electrically controlled telescopic rod (17) can be controlled to telescope and adjust through the display screen (1) and the control button (9), thereby changing the position of the displacement slider (16) and driving the third electrically controlled telescopic rod (12) to follow and adjust, thereby controlling the movement amplitude of the rotating guide frame (13). After reaching the designated position, the third electrically controlled telescopic rod (12) is telescoped and adjusted, driving the rotating guide frame (13), the docking guide rod (14), and the contact wheel (15) to move. At this time, the rotating guide frame (13) rotates around the first limit hinge (11), and the contact wheel (15) guides and supports the injection hose (3); S3, the user presses the rotating bracket (37) in advance, so that the rotating bracket (37) rotates on the spring support seat (38) to limit the position of the syringe (6). At this time, the second propulsion frame (36) drives the medicine pushing shaft on the syringe (6) to move through the rotating bracket (37) to carry out the medicine pushing process; S4. Finally, at this time, the second electrically controlled telescopic rod (25) drives the stepper motor (26) and the first toothed disc (27) to move, so that the first toothed disc (27) is meshed and connected with the second toothed disc (28). The stepper motor (26) controls the rotation of the first toothed disc (27), and the first toothed disc (27) drives the second toothed disc (28) to rotate and cooperate. The second toothed disc (28) is meshed and connected with the third toothed disc (32), which can drive the first hinged connecting rod (33) to move in coordination, and accompanied by the forward and reverse driving of the stepper motor (26), can The first propulsion frame (35) can be controlled to move back and forth by the first hinge link (33) and the second hinge link (34), thereby facilitating the reciprocating medicine pushing operation. The movement of the first propulsion frame (35) drives the second propulsion frame (36) to follow the movement. The movement of the first regulating component (29) drives the third limit hinge (40) to follow and cooperate. The third limit hinge (40) can follow the telescopic adjustment. At the same time, the third limit hinge (40) rotates and cooperates on the second limit hinge (31) to prevent the occurrence of a stuck phenomenon.

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