Anesthesia quantitative spray equipment for anesthesia department

Abstract

This invention relates to the field of quantitative anesthetic spray technology, and discloses a quantitative anesthetic spray device for anesthesiology departments. The device includes a spray tube and a medication cartridge. A pusher cavity is formed between the inner wall of the end of the pusher cylinder away from the medication cartridge and a second piston plate. A metering cylinder is located on one side of the medication cartridge. A large-size metering device, a medium-size metering device, and a small-size metering device are disposed within the metering cartridge. These metering devices rotate to drive a piston rod to move within the metering cartridge. This quantitative anesthetic spray device for anesthesiology departments, by using a medication cartridge to store the medication, and by inputting a precise dosage into the metering devices, uses the metering cartridge to drive the pusher cylinder, causing the pusher cylinder to precisely propel the medication out of the medication cartridge, thus achieving a quantitative anesthetic spray effect. It is simple to operate and provides high anesthetic efficacy.

Description

Technical Field

[0001] The invention relates to the technical field of anesthesia quantitative spraying, in particular to an anesthesia quantitative spraying device used in anesthesia department. Background Art

[0002] Anesthesia is a comprehensive subject that includes knowledge from multiple disciplines. With the improvement of people's living standards, local anesthesia is often used during surgery. Existing common anesthesia equipment such as spray anesthesia equipment is widely used. Spray anesthesia is usually used for local anesthesia. Its purpose is to make specific areas of the patient lose consciousness, thereby reducing pain and discomfort during surgery or examination.

[0003] During surgery, some spray anesthesia devices need to spray a single part, such as oral tooth extraction surgery, etc.; some need to spray multiple parts, such as gastroscopy, laryngoscopy or tracheoscopy. In order to reduce the patient's throat reactivity and make it easier to insert the catheter, the doctor may perform multiple spray anesthesia on the patient's throat; and in some cases, in order to ensure the continuity and stability of the anesthesia effect, the doctor may choose to spray continuously. The quantitative spraying of the anesthesia spray device can accurately guarantee the amount of anesthetic sprayed, which helps doctors or users control the amount of anesthetic used and avoid excessive use, which leads to adverse effects. Therefore, we propose an anesthesia quantitative spray device for anesthesia department. Summary of the invention

[0004] In view of the problem that the above-mentioned existing anesthetic spray equipment needs to spray a quantitative and accurate dose to ensure the safe use of the anesthetic, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide an anesthetic metered spray device for anesthesia department, which aims to achieve the effect of quantitative spray of anesthetic agent by utilizing the metering cylinder to drive the push cylinder so that the push cylinder can accurately push the medicine out in the medicine cylinder, with simple operation and high anesthesia degree.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an anesthetic quantitative spray device for anesthesia department, comprising a spray tube and a medicine barrel, one end of the medicine barrel is connected to a three-way valve, the spray tube is connected to the three-way valve, a push barrel is movably arranged in the medicine barrel, a push shaft is movably arranged in the push barrel, one end of the push shaft close to the spray tube is connected to a first piston plate, and one end of the push shaft away from the spray tube is connected to a second piston plate, the first piston plate moves in the medicine barrel, one end of the push barrel penetrates to the outside of the medicine barrel, and a push cavity is formed between the inner wall of the end of the push barrel away from the medicine barrel and the second piston plate;

[0007] A metering cylinder is arranged on one side of the medicine cylinder, a piston column is movably arranged on one end of the metering cylinder, the other end of the metering cylinder is connected with the push chamber, a metering device is installed above the metering cylinder, the metering device includes a metering box, a large-size metering device, a medium-size metering device and a small-size metering device are arranged in the metering box, and the large-size metering device, the medium-size metering device and the small-size metering device are rotated respectively to drive the piston column to move within the metering cylinder within a limited position.

[0008] As a preferred solution of the anesthetic metered spray device for anesthesia department described in the present invention, the three-way valve is connected to a drug suction tube, a drug suction valve is installed outside the drug suction tube, a visual window is embedded in the side wall of the medicine barrel, the medicine barrel and the outer wall of the metering barrel are fixedly installed by a connecting plate, and the metering box is installed above the connecting plate.

[0009] As a preferred embodiment of the anesthetic metered spray device for anesthesiology described in the present invention, the outer diameter of the push barrel is smaller than the inner diameter of the medicine barrel, a limiting ring is installed on the inner wall of the end of the push barrel close to the first piston plate, the outer diameter of the push shaft is smaller than the inner diameter of the push barrel, the end of the push barrel away from the medicine barrel is connected to a pressure pipe, the end of the metering barrel away from the piston column is connected to the pressure pipe, the end of the pressure pipe close to the metering barrel is installed with a second valve, the end of the pressure pipe close to the push barrel is installed with a third valve, and the end of the push barrel away from the medicine barrel is installed with a fourth valve.

[0010] As a preferred solution of the anesthetic metered spray device for anesthesia department described in the present invention, wherein: the second piston plate is connected to a shaft rod on the side away from the pushing shaft, the extended end of the shaft rod is axially movable and passes through the outside of the pushing barrel, the end of the shaft rod is connected to an end plate, the end of the end plate away from the shaft rod is movably connected to a clamping plate, the bottom of the end of the medicine barrel close to the pushing barrel is connected to a hand buckle plate, the hand buckle plate is connected to a positioning rod on the side away from the medicine barrel, the positioning rod is clamped with a combination column on the outside, and the combination column is connected to the outer wall of the pushing barrel.

[0011] As a preferred solution of the anesthetic quantitative spray device for anesthesia department described in the present invention, wherein: a slot for cooperating with the sliding of the positioning rod is opened on one side of the combination column, and a slot is opened on the other side of the combination column, a pin shaft movably passes through the slot, the pin shaft movably passes through the positioning rod, a spring is arranged outside the pin shaft, and both ends of the spring are respectively connected to the pin shaft and the positioning rod, and the clamping plate is engaged with the slot.

[0012] As a preferred solution of the anesthetic metered spray device for anesthesia department described in the present invention, wherein: the end of the piston column away from the metering cylinder is connected to a hand-grip plate, the hand-grip plate is movably sleeved outside the medicine cylinder, a shift rod is provided on one side of the metering cylinder, one end of the shift rod is connected to the hand-grip plate, a latch gear group is installed on one side of the shift rod, a slide groove with an L-shaped cross-section is axially opened in the shift rod, two ends of the slide groove respectively pass through two sides of the shift rod, one of the through grooves is horizontally plugged with a slide plate, and the other through groove is vertically plugged with a slider, the slide plate and the slider are connected, a fourth toothed disc is movably installed below the metering box, and the slide plate is movably connected to the fourth toothed disc.

[0013] As a preferred solution of the anesthetic metered spray equipment for anesthesiology department described in the present invention, wherein: the first positioning disk is concentrically connected above the fourth toothed disk, the third toothed disk is concentrically connected above the first positioning disk, the second toothed disk is concentrically connected above the third toothed disk, the first toothed disk is concentrically connected above the second toothed disk, the outer diameter of the first toothed disk is smaller than the outer diameter of the second toothed disk, the outer diameter of the second toothed disk is smaller than the outer diameter of the third toothed disk, the large-size doser includes a first fixed seat, the first fixed seat is connected to the dosing box, a first driving disk is concentrically arranged below the first fixed seat, the first driving disk cooperates with the first toothed disk, a first rotating seat is concentrically connected to the top of the first driving disk, and the first rotating seat moves through to the top of the first fixed seat.

[0014] As a preferred solution of the anesthetic metered spray equipment for anesthesiology described in the present invention, the medium-sized doser includes a second fixed seat, a second positioning disk is arranged below the second fixed seat, a second rotating seat is concentrically connected above the second positioning disk, the second rotating seat moves through to the top of the second fixed seat, a spring is sleeved at the bottom of the second rotating seat, the spring is used to drive the second positioning disk to move closer to the second fixed seat, a second driving disk is concentrically connected below the second positioning disk, the second driving disk is meshed with the second toothed disk, the second positioning disk is located below the first driving disk, and the second driving disk moves axially between the bottom of the second toothed disk and the top of the second toothed disk.

[0015] As a preferred solution of the anesthetic metered spray equipment for anesthesiology described in the present invention, wherein: the small-size meter includes a first fixed seat, a positioning sleeve is concentrically connected to the bottom of the first fixed seat, a third positioning disk is arranged below the positioning sleeve, a third rotating seat is concentrically installed above the third positioning disk, the third rotating seat moves through to the top of the third fixed seat, a third driving disk is concentrically connected to the bottom of the third positioning disk, the third driving disk is meshed with the third toothed disk, the third positioning disk is located above the third toothed disk, the bottom sleeve of the third rotating seat is provided with a spring, the spring is used to drive the third positioning disk to move closer to the positioning sleeve, the horizontal part of the positioning sleeve is located below the second driving disk, and the third driving disk moves axially between the first positioning disk and the top of the third toothed disk.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention provides a medicine barrel for storing medicine. After inputting a precise amount of medicine into a metering device, the metering barrel drives the push barrel so that the push barrel accurately pushes the medicine in the medicine barrel to spray out, thereby achieving the effect of quantitative spraying of anesthetic medicine. The operation is simple and the degree of anesthesia is high.

[0018] 2. The present invention designs the rotation ratio of the first drive disc and the first toothed disc, the rotation ratio of the second drive disc and the second toothed disc, and the rotation ratio of the third drive disc and the third toothed disc to achieve decimal precise rotation and achieve precise spraying of non-integer drug amounts.

[0019] 3. The present invention facilitates the operation and use of the anesthesia spray device by providing a hand grip plate and a hand buckle plate, and improves the precise spraying and convenient resetting of the spray device by utilizing the provision of a plurality of one-way valves, and the operation is simple and precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0021] in:

[0022] Figure 1 The figure is a schematic diagram of the overall structure of the anesthesia quantitative spraying device used in the anesthesia department of the present invention.

[0023] Figure 2 The figure is a side view structural schematic diagram of the anesthesia quantitative spray device used in the anesthesia department of the present invention.

[0024] Figure 3The present invention is a schematic structural diagram of a metering cylinder of an anesthetic metering spray device used in anesthesia department.

[0025] Figure 4 The present invention is a schematic diagram of the structure of the medicine cartridge of the anesthesia quantitative spraying device used in the anesthesia department.

[0026] Figure 5 The present invention is a schematic cross-sectional structural diagram of a push barrel of an anesthetic quantitative spray device used in anesthesia department.

[0027] Figure 6 The present invention is a schematic diagram of the matching structure of the combined column and the positioning rod of the anesthesia quantitative spray device used in the anesthesia department.

[0028] Figure 7 The present invention is a schematic structural diagram of a displacement rod of an anesthetic quantitative spray device used in anesthesia department.

[0029] Figure 8 The present invention is a schematic diagram of the structure of the interior of the quantitative device of the anesthesia quantitative spray device used in the anesthesia department.

[0030] Fig. 9 The present invention is a schematic cross-sectional structural diagram of a large-sized quantitative device of an anesthetic quantitative spray device used in anesthesia department.

[0031] Fig.10 The present invention is a schematic cross-sectional structural diagram of a medium-sized quantitative device and a small-sized quantitative device of an anesthetic quantitative spray device used in anesthesia department.

[0032] Description of reference numerals:

[0033] 1. Medicine cartridge; 11. Visual window; 12. Three-way valve; 121. Medicine suction tube; 122. Medicine suction valve; 13. Spray tube; 14. Hand button plate; 15. Positioning rod; 16. Combination column; 161. Card slot; 162. Pin shaft;

[0034] 2. Dosing cylinder; 21. Hand grip plate; 22. Connecting plate; 23. Piston column; 24. Pressure pipe; 25. Shift rod; 251. Gear set; 252. Slide groove; 253. Sliding block; 254. Slide plate; 26. First valve; 27. Second valve;

[0035] 3. Pushing barrel; 31. Limiting ring; 32. Pushing shaft; 33. First piston plate; 34. Second piston plate; 35. Shaft; 36. Third valve; 37. Fourth valve; 38. End plate; 39. Clamping plate;

[0036] 4. Dosing device; 41. Dosing box; 411. First toothed disc; 412. Second toothed disc; 413. Third toothed disc; 414. First positioning disc; 415. Fourth toothed disc; 42. Large-sized dosing device; 421. First driving disc; 422. First fixed seat; 423. First rotating seat; 43. Medium-sized dosing device; 431. Second driving disc; 432. Second fixed seat; 433. Second rotating seat; 434. Second positioning disc; 44. Small-sized dosing device; 441. Third driving disc; 442. Third fixed seat; 443. Third rotating seat; 444. Positioning sleeve; 445. Third positioning disc. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] Example 1

[0039] Reference Figure 1-10 , which is the first embodiment of the present invention, provides an anesthetic quantitative spray device for anesthesia department, the anesthetic quantitative spray device for anesthesia department includes a spray pipe 13 and a medicine barrel 1, one end of the medicine barrel 1 is connected to a three-way valve 12, the spray pipe 13 is connected to the three-way valve 12, a push barrel 3 is movably arranged in the medicine barrel 1, a push shaft 32 is movably arranged in the push barrel 3, an end of the push shaft 32 close to the spray pipe 13 is connected to a first piston plate 33, and an end of the push shaft 32 away from the spray pipe 13 is connected to a second piston plate 34, the first piston plate 33 moves in the medicine barrel 1, a medicine area is between the first piston plate 33 and the three-way valve 12, the medicine is sprayed from the three-way valve 12 by the movement of the first piston plate 33, one end of the push barrel 3 penetrates to the outside of the medicine barrel 1, and a push chamber is formed between the inner wall of the end of the push barrel 3 away from the medicine barrel 1 and the second piston plate 34, when the pressure in the push chamber increases When the pressure is large, the second piston plate 34 moves in the push chamber to push the first piston plate 33 to move in the medicine barrel 1; a metering cylinder 2 is provided on one side of the medicine barrel 1, and a piston column 23 is movably provided at one end of the metering cylinder 2, and the other end of the metering cylinder 2 is connected to the push chamber, and a metering device 4 is installed above the metering cylinder 2, and the metering device 4 includes a metering box 41, and a large-size metering device 42, a medium-size metering device 43 and a small-size metering device 44 are provided in the metering box 41. The large-size metering device 42, the medium-size metering device 43 and the small-size metering device 44 rotate respectively to drive the piston column 23 to move in the metering cylinder 2, and the medium-size metering device 43 and the small-size metering device 44 rotate respectively, first rotating the large-size metering device 42, then rotating the medium-size metering device 43, and finally rotating the medium-size metering device 43. When the medium-size metering device 43 and the small-size metering device 44 rotate, the large-size metering device 42 rotates.

[0040] Combined with Figure 1-3The three-way valve 12 is connected to a drug suction tube 121, and a drug suction valve 122 is installed outside the drug suction tube 121. 123 is a valve for one-way feeding into the medicine barrel 1. A visual window 11 is embedded in the side wall of the medicine barrel 1. The visual window 11 is convenient for observing the position of the medicine. The outer walls of the medicine barrel 1 and the metering barrel 2 are fixedly installed by a connecting plate 22, and the metering box 41 is installed above the connecting plate 22.

[0041] Combined with Figure 3-5 The outer diameter of the push barrel 3 is smaller than the inner diameter of the medicine barrel 1, and a limit ring 31 is installed on the inner wall of the end of the push barrel 3 close to the first piston plate 33. The limit ring 31 is used to prevent the second piston plate 34 from being pulled out from the end of the push barrel 3 close to the medicine barrel 1. The outer diameter of the push shaft 32 is smaller than the inner diameter of the push barrel 3. The end of the push barrel 3 away from the medicine barrel 1 is connected to the pressure pipe 24, and the end of the metering barrel 2 away from the piston column 23 is connected to the pressure pipe 24. The end of the pressure pipe 24 close to the metering barrel 2 is installed with a second valve 27, and the second valve 27 is a valve for one-way input into the push barrel 3. The end of the pressure pipe 24 close to the push barrel 3 is installed with a third valve 36, and the end of the push barrel 3 away from the medicine barrel 1 is installed with a fourth valve 37, and the fourth valve 37 is a valve for one-way input to the pressure pipe 24.

[0042] Combined with Figure 4 and Figure 5 The second piston plate 34 is connected to a shaft rod 35 on the side away from the pushing shaft 32. The shaft rod 35 is located at a non-center position of the second piston plate 34. The extended end of the shaft rod 35 axially moves through the outside of the pushing barrel 3. The end of the shaft rod 35 is connected to an end plate 38. The end plate 38 is preferably a special-shaped structure. In order to avoid the position of the positioning rod 15, the end of the end plate 38 away from the shaft rod 35 is movably connected to a clamping plate 39. The movable connecting member is a pin shaft, and the axis of the pin shaft is vertical, so as to control the horizontal rotation of the clamping plate 39 and snap it into the clamping groove 161. The bottom of the end of the medicine barrel 1 close to the pushing barrel 3 is connected to a hand buckle plate 14, and the side of the hand buckle plate 14 away from the medicine barrel 1 is connected to a positioning rod 15. The positioning rod 15 is clamped with a combination column 16 on the outside, and the combination column 16 is connected to the outer wall of the pushing barrel 3. When the pushing barrel 3 moves axially, it moves axially along the positioning rod 15 with the combination column 16.

[0043] Combined with Figure 4 and Figure 6A slot is provided on one side of the combined column 16 to cooperate with the positioning rod 15 to slide. The slot is similar to a C-shaped structure. A slot 161 is provided on the other side of the combined column 16. A pin 162 is movably inserted into the slot 161. The pin 162 movably penetrates the positioning rod 15. A spring is provided on the outer sleeve of the pin 162. The two ends of the spring are respectively connected to the pin 162 and the positioning rod 15. The spring drives the pin 162 to pass through the positioning rod 15 and insert into the slot 161. The card plate 39 is in contact with the slot. 161 is engaged, when the card plate 39 is inserted into the card slot 161, the pin shaft 162 is squeezed into the positioning rod 15, and the combined column 16 can move axially together with the push barrel 3 and the shaft rod 35; when the card plate 39 is not inserted into the card slot 161, the push barrel 3 and the medicine barrel 1 remain limited and motionless, and the shaft rod 35 can move axially. When the pin shaft 162 is pushed into the positioning rod 15, the combined column 16 and the push barrel 3 can move axially on the positioning rod 15.

[0044] Combined with Figure 4-6 The end of the piston column 23 away from the metering cylinder 2 is connected to the hand-grip plate 21, and the hand-grip plate 21 is movably sleeved outside the medicine cylinder 1. A shift rod 25 is provided on one side of the metering cylinder 2, and one end of the shift rod 25 is connected to the hand-grip plate 21. A tooth group 251 is installed on one side of the shift rod 25. A slide groove 252 with an L-shaped cross-section is axially opened in the shift rod 25. The two ends of the slide groove 252 respectively penetrate the two sides of the shift rod 25, one of the through grooves is horizontally plugged with a slide plate 254, and the other through groove is vertically plugged with a slider 253. The slide plate 254 is connected to the slider 253, and a fourth toothed disc 415 is movably installed below the metering box 41, and the slide plate 254 is movably connected to the fourth toothed disc 415.

[0045] Working principle: by clamping the clamping plate 39 at the position of the clamping groove 161, the end plate 38 is pulled away from the medicine barrel 1, so that the first piston plate 33 moves from the position close to the three-way valve 12 to the direction away from the three-way valve 12, so that the spray is fed from the medicine suction tube 121; when the metering device 4 gives a spray dose, that is, the fourth toothed disc 415 gives an accurate number of revolutions, that is, the shift rod 25 brings the piston column 23 and the hand grip plate 21 to move accurately in a straight line, that is, the piston column 23 is accurately pushed in the metering barrel 2, that is, the metering barrel 2 gives a precise thrust to the push chamber through the pressure pipe 24, at this time, the pin 162 is inserted into the clamping groove 161, the clamping plate 39 is separated from the clamping groove 161, and the pressure released by the pressure pipe 24 is used to push the second piston plate 34 to move in the push barrel 3. The push cylinder 3 is moved to push the first piston plate 33 outward to push the medicine to be sprayed out. At the same time, the connection between the metering cylinder 2 and the push chamber is used to prevent the inertial movement of the first piston plate 33. By analogy, the same medicine cylinder 1 can be achieved to spray out multiple doses. When the medicine is completely sprayed out, the second piston plate 34 has moved to a position close to the limit ring 31. The pin 162 is pressed and the push cylinder 3 is pushed alone to make the limit ring 31 move toward the first piston plate 33. The fourth valve 37 is opened to complete the resetting of the push cylinder 3. The large-size dosing device 42, the medium-size dosing device 43 and the small-size dosing device 44 are reset by rotation to make the piston column 23 move in the metering cylinder 2, and the first valve 26 is opened to cooperate to complete the movement of the piston column 23 away from the first valve 26.

[0046] Example 2

[0047] Reference Figure 1 , Figure 2 , Figure 3 , Figure 8 , Fig. 9 and Fig.10 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that:

[0048] The fourth toothed disc 415 is concentrically connected to the first positioning disc 414, the first positioning disc 414 is concentrically connected to the third toothed disc 413, the third toothed disc 413 is concentrically connected to the second toothed disc 412, the second toothed disc 412 is concentrically connected to the first toothed disc 411, the outer diameter of the first toothed disc 411 is smaller than the outer diameter of the second toothed disc 412, the outer diameter of the second toothed disc 412 is smaller than the outer diameter of the third toothed disc 413, the large-size quantitative device 42 includes a first fixed seat 422, the first fixed seat 422 is connected to the quantitative box 41, and the first fixed seat 422 is concentrically arranged below The first driving disk 421 cooperates with the first toothed disk 411, and the first rotating seat 423 is concentrically connected to the top of the first driving disk 421. The first rotating seat 423 moves through the top of the first fixed seat 422. The upper end surface of the first fixed seat 422 is provided with a plurality of scale marks in a circular array, and the side wall of the first rotating seat 423 is provided with an arrow mark for pointing to the mark. The first rotating seat 423 and the inner wall of the first fixed seat 422 damp the rotation. When the first rotating seat 423 rotates, the first driving disk 421 engages with the first toothed disk 411.

[0049] Combined with Figure 8-10 The medium-sized quantitative device 43 includes a second fixed seat 432, a second positioning disk 434 is arranged below the second fixed seat 432, a second rotating seat 433 is concentrically connected above the second positioning disk 434, the second rotating seat 433 moves through the second fixed seat 432, a spring is sleeved at the bottom of the second rotating seat 433, the spring is used to drive the second positioning disk 434 to move closer to the second fixed seat 432, a second driving disk 431 is concentrically connected below the second positioning disk 434, the second driving disk 431 is meshed with the second toothed disk 412, the second positioning disk 434 is located below the first driving disk 421, and the second driving disk 431 moves axially at the bottom of the second toothed disk 412 and Between the top of the second toothed disc 412, the upper end surface of the second fixed seat 432 is provided with a plurality of scale marks in a circular array, and the side wall of the second rotating seat 433 is provided with an arrow mark for pointing to the scale mark. A rubber sleeve is provided between the second rotating seat 433 and the second fixed seat 432 to achieve damped rotation. By pressing the second rotating seat 433 downward, the second positioning disc 434 contacts the top of the second toothed disc 412. At this time, the second driving disc 431 is engaged with the second toothed disc 412. At this time, the second rotating seat 433 is rotated, and the second toothed disc 412 also rotates. When the second rotating seat 433 is released, the second driving disc 431 is separated from the second toothed disc 412 under the drive of the spring.

[0050] Combined with Figure 8-10The small-size dosing device 44 includes a first fixed seat 422, a positioning sleeve 444 is concentrically connected to the bottom of the first fixed seat 422, a third positioning disk 445 is arranged below the positioning sleeve 444, a third rotating seat 443 is concentrically installed above the third positioning disk 445, the third rotating seat 443 is movable through the top of the third fixed seat 442, a third driving disk 441 is concentrically connected to the bottom of the third positioning disk 445, the third driving disk 441 is meshed with the third toothed disk 413, the third positioning disk 445 is located above the third toothed disk 413, a spring is sleeved on the bottom of the third rotating seat 443, the spring is used to drive the third positioning disk 445 to move closer to the positioning sleeve 444, and the horizontal part of the positioning sleeve 444 is located below the second driving disk 431, The third driving disk 441 moves axially between the first positioning disk 414 and the top of the third toothed disk 413. The upper end surface of the third fixed seat 442 is provided with a plurality of scale marks in a ring array. The side wall of the third rotating seat 443 is provided with arrow marks for pointing to the scale marks. A rubber sleeve is provided between the third rotating seat 443 and the third fixed seat 442 to achieve damped rotation. By pressing the third rotating seat 443 downward, the positioning sleeve 444 is in contact with the top of the third toothed disk 413. At this time, the third driving disk 441 is engaged with the third toothed disk 413. At this time, the third rotating seat 443 is rotated, and the third toothed disk 413 also rotates. When the third rotating seat 443 is released, the third driving disk 441 is separated from the third toothed disk 413 under the drive of the spring.

[0051] Working principle: When the dosing device 4 needs to give a spray dose, first rotate the first rotating seat 423 so that the first driving disc 421 engages and rotates with the first toothed disc 411, that is, when the first driving disc 421 rotates one tenth of a circle, the first toothed disc 411 rotates one circle. If the spray dose is not an integer, the second rotating seat 433 can be pressed downward on the basis of the above rotation, and then rotated so that the second driving disc 431 engages with the second toothed disc 412, that is, when the second driving disc 431 rotates one tenth of a circle, the second toothed disc 412 rotates half a circle, and then the second rotating seat 433 is released. 33; On the basis of the rotation of the large-size dosing device 42 and the medium-size dosing device 43, the third rotating seat 443 is pressed downward, and then rotated so that the third driving disk 441 is engaged with the third toothed disk 413, that is, when the third driving disk 441 rotates one tenth of a circle, the third toothed disk 413 rotates one tenth of a circle; by controlling the rotation of the first toothed disk 411, the second toothed disk 412 and the third toothed disk 413, the number of circles of rotation of the fourth toothed disk 415 is made more precise, so as to more accurately engage with the shift rod 25 and realize more precise linear movement of the shift rod 25.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An anesthetic quantitative spray device for anesthesia department, comprising a spray tube, characterized in that: It also includes a medicine barrel, one end of which is connected to a three-way valve, the spray pipe is connected to the three-way valve, a push barrel is movably arranged in the medicine barrel, a push shaft is movably arranged in the push barrel, one end of the push shaft close to the spray pipe is connected to a first piston plate, and one end of the push shaft away from the spray pipe is connected to a second piston plate, the first piston plate moves in the medicine barrel, one end of the push barrel penetrates to the outside of the medicine barrel, and a push cavity is formed between the inner wall of the end of the push barrel away from the medicine barrel and the second piston plate; A dosing cylinder is provided on one side of the medicine cylinder, a piston column is movably provided on one end of the dosing cylinder, the other end of the dosing cylinder is communicated with the push chamber, a dosing device is installed above the dosing cylinder, the dosing device includes a dosing box, a large-size dosing device, a medium-size dosing device and a small-size dosing device are provided in the dosing box, the large-size dosing device, the medium-size dosing device and the small-size dosing device are rotated respectively to drive the piston column to move within the dosing cylinder within a limited position; The end of the piston column away from the metering cylinder is connected to a hand-grip plate, and the hand-grip plate is movably sleeved outside the medicine cylinder. A shift rod is arranged on one side of the metering cylinder, and one end of the shift rod is connected to the hand-grip plate. A latching gear group is installed on one side of the shift rod. A slide groove with an L-shaped cross-section is axially opened in the shift rod, and the two ends of the slide groove respectively penetrate the two sides of the shift rod, one of the through grooves is horizontally plugged with a slide plate, and the other through groove is vertically plugged with a slider, and the slide plate is connected to the slider, and a fourth toothed disc is movably installed below the metering box, and the slide plate is movably connected to the fourth toothed disc; The first positioning disc is concentrically connected to the top of the fourth toothed disc, the third toothed disc is concentrically connected to the top of the first positioning disc, the second toothed disc is concentrically connected to the top of the third toothed disc, the first toothed disc is concentrically connected to the top of the second toothed disc, the outer diameter of the first toothed disc is smaller than the outer diameter of the second toothed disc, the outer diameter of the second toothed disc is smaller than the outer diameter of the third toothed disc, the large-size quantitative device includes a first fixed seat, the first fixed seat is connected to the quantitative box, the first driving disc is concentrically arranged below the first fixed seat, the first driving disc cooperates with the first toothed disc, the top of the first driving disc is concentrically connected to the first rotating seat, and the first rotating seat movably penetrates to the top of the first fixed seat; The medium-sized quantitative device includes a second fixed seat, a second positioning disk is arranged below the second fixed seat, a second rotating seat is concentrically connected above the second positioning disk, the second rotating seat moves through to the top of the second fixed seat, a spring is sleeved at the bottom of the second rotating seat, the spring is used to drive the second positioning disk to move closer to the second fixed seat, a second driving disk is concentrically connected below the second positioning disk, the second driving disk is meshed with the second toothed disk, the second positioning disk is located below the first driving disk, and the second driving disk moves axially between the bottom of the second toothed disk and the top of the second toothed disk; The small-size doser includes a first fixed seat, a positioning sleeve is concentrically connected to the bottom of the first fixed seat, a third positioning disk is arranged below the positioning sleeve, a third rotating seat is concentrically installed above the third positioning disk, the third rotating seat moves through to the top of the third fixed seat, a third driving disk is concentrically connected to the bottom of the third positioning disk, the third driving disk is meshed with the third gear disk, the third positioning disk is located above the third gear disk, a spring is provided on the bottom sleeve of the third rotating seat, the spring is used to drive the third positioning disk to move closer to the positioning sleeve, the horizontal part of the positioning sleeve is located below the second driving disk, and the third driving disk moves axially between the first positioning disk and the top of the third gear disk.

2. The anesthetic quantitative spray device for anesthesia department according to claim 1, characterized in that: The three-way valve is connected to a drug suction tube, a drug suction valve is installed outside the drug suction tube, a visual window is embedded in the side wall of the medicine barrel, the medicine barrel and the outer wall of the quantitative barrel are fixedly installed through a connecting plate, and the quantitative box is installed above the connecting plate.

3. The anesthetic quantitative spray device for anesthesia department according to claim 2, characterized in that: The outer diameter of the push barrel is smaller than the inner diameter of the medicine barrel, a limit ring is installed on the inner wall of one end of the push barrel close to the first piston plate, the outer diameter of the push shaft is smaller than the inner diameter of the push barrel, the end of the push barrel away from the medicine barrel is connected to a pressure pipe, the end of the metering barrel away from the piston column is connected to the pressure pipe, the end of the pressure pipe close to the metering barrel is installed with a second valve, the end of the pressure pipe close to the push barrel is installed with a third valve, and the end of the push barrel away from the medicine barrel is installed with a fourth valve.

4. The anesthetic quantitative spray device for anesthesia department according to claim 3, characterized in that: The second piston plate is connected to a shaft rod on the side away from the pushing shaft, and the extended end of the shaft rod is axially movable and passes through the outside of the pushing barrel. The end of the shaft rod is connected to an end plate, and the end of the end plate away from the shaft rod is movably connected to a clamping plate. A hand buckle plate is connected to the bottom of the end of the medicine barrel close to the pushing barrel, and a positioning rod is connected to the side of the hand buckle plate away from the medicine barrel. A combination column is clamped on the outside of the positioning rod, and the combination column is connected to the outer wall of the pushing barrel.

5. The anesthetic quantitative spraying device for anesthesia department according to claim 4, characterized in that: A slot is provided on one side of the combined column to cooperate with the sliding of the positioning rod, and a slot is provided on the other side of the combined column. A pin shaft is movably passed through the slot, and the pin shaft movably passes through the positioning rod. A spring is arranged outside the pin shaft, and both ends of the spring are respectively connected to the pin shaft and the positioning rod, and the clamping plate is engaged with the slot.

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