Anesthesia concentration adjusting type anesthesia device

Abstract

The invention relates to the technical field of medical instruments, in particular to an anesthesia concentration adjusting type anesthesia device which comprises a batcher, a proportional regulator and a blender, the batcher comprises a first cavity and a second cavity, pistons are arranged in the first cavity and the second cavity in a sliding mode, and the first cavity and the second cavity are matched with the pistons to form a liquid suction containing cavity; the proportional regulator comprises a mounting seat and two conical rollers which are reversely arranged, the two conical rollers are rotationally arranged in the mounting seat, the two conical rollers are in threaded fit with the two threaded rods respectively, and the two conical rollers are in transmission connection through a conical ring; a mounting frame is arranged at the lower end of the batcher, the mixer is detachably arranged on the mounting frame, and the first chamber and the second chamber are both communicated with the mixer through a discharging one-way valve. Through a spiral transmission mechanism formed by the double-cone rollers and the threaded rods and in combination with an adjusting mechanism of the cone rings and the two double-cone rollers, precise and synchronous control over the strokes of the two pistons is achieved, and linear adjustment of the volume proportion of the two anesthetics is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically to an anesthetic concentration regulating anesthesia device. Background Art

[0002] In the field of anesthesia medicine, precise control of anesthetic drug concentration is a core requirement to ensure surgical safety. In the prior art, the concentration of anesthetics is mostly dependent on manual operation by medical staff, such as extracting drugs with a syringe and manually mixing them with diluents. This method is not only inefficient, but also prone to concentration deviations due to human errors, posing a safety hazard. In addition, during the manual mixing process, it is difficult for anesthetics and diluents to blend quickly and evenly, and uneven mixing may cause local concentrations to be too high or too low, directly affecting the anesthesia effect, and even causing risks such as intraoperative awakening or metabolic disorders in patients.

[0003] Therefore, it is necessary to improve the prior art. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, an anesthetic concentration regulating anesthesia device is provided which can accurately achieve the anesthetic concentration ratio.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: An anesthetic concentration regulating anesthesia device comprises a dosing device, a ratio regulator and a mixer, wherein the dosing device comprises a first chamber and a second chamber, pistons are slidably arranged in the first chamber and the second chamber and cooperate with the pistons to form a liquid suction chamber, the two pistons are fixedly connected with a threaded rod, and the dosing device is provided with two one-way liquid inlets, which correspond one to one with the first chamber and the second chamber; The proportion regulator is arranged at the open end of the dosing device, and comprises a mounting seat and two tapered rollers arranged in opposite directions. The two tapered rollers are rotatably arranged in the mounting seat, the two tapered rollers are respectively threadedly matched with two threaded rods, and the two tapered rollers are connected by a tapered ring transmission. A guide rail is fixedly arranged on the mounting seat, a guide seat is slidably arranged on the guide rail, and a guide hole matching the tapered ring is arranged on the guide seat; The proportional regulator is provided with an adjusting slider which is slidably mounted thereon, and a scale line which matches the adjusting slider is provided on the side wall of the proportional regulator. The adjusting slider is connected to the guide seat through a telescopic rod, and when the adjusting slider slides along the proportional regulator, the guide seat is driven to slide along the guide rail; A mounting frame is arranged at the lower end of the quantitative device, and the mixer is detachably arranged on the mounting frame. The first chamber and the second chamber are both connected with the mixer through a discharge one-way valve.

[0006] Preferably, the adjusting slider is connected with a locking mechanism, which includes a fixed seat, a floating block and a control block. The fixed seat is fixedly arranged on the mounting seat. A vertical chute is arranged at the upper end of the fixed seat. The floating block is slidably arranged in the vertical chute. A first return spring is arranged between the floating block and the fixed seat. The lower end of the adjusting slider is provided with upper teeth, and the upper end of the floating block is provided with lower teeth that cooperate with the upper teeth. The control block is slidably arranged on the fixed seat. A transverse hole for the control block to insert is arranged on the floating block. A second return spring is arranged between the control block and the fixed seat; The lower end of the transverse hole is a wedge surface, and one end of the control block close to the floating block is a wedge block that cooperates with the wedge surface.

[0007] Preferably, a control board is arranged at the lower end of the control block, and a push board that cooperates with the control board is arranged on one of the threaded rods. When the volume of the liquid suction cavity is at the minimum value, the push board pushes the control board and separates the lower teeth from the upper teeth.

[0008] Preferably, one of the taper rollers or one of the threaded rods is connected with a driving mechanism.

[0009] Preferably, the driving device includes a driving motor arranged on the mounting seat. A driven gear is coaxially fixed on one of the taper rollers, and a driving gear that meshes with the driven gear is arranged on the motor shaft of the driving motor.

[0010] Preferably, the mounting frame includes a mounting chute arranged along the length direction of the metering device. The first chamber and the second chamber are isolated by a partition plate. Two discharge one-way valves are respectively arranged on both sides of the partition plate. A pipeline is arranged in the partition plate. One end of the pipeline is communicated with the two discharge one-way valves, and the other end of the pipeline extends into the mounting chute.

[0011] Preferably, the mixer includes a first cup body and a second cup body that are rotatably connected. The second cup body is located inside the first cup body. A guide plate that slidably cooperates with the mounting chute is arranged at the upper end of the first cup body. An external gear ring is arranged at the upper end of the second cup body, and a rack that meshes with the external gear ring is arranged in the mounting chute.

[0012] Preferably, the inner wall of the second cup body is provided with turbulence protrusions.

[0013] Preferably, the second cup body is provided with a cup cover that slides to open and close. A strip-shaped magnetic part is arranged on the cup cover, and a guiding magnetic material that cooperates with the cup cover is arranged between the end of the rack and the inner end of the mounting chute; A push rod is arranged at the inner end of the mounting chute. When the second cup body moves to the inner end of the mounting chute, the cup cover rotates to a direction parallel to the mounting chute under the cooperation of the guiding magnetic material and the magnetic part, and is in an open state under the push of the push rod.

[0014] Preferably, a pressable temporary limiter adapted to the first cup body is provided at the inner end of the installation chute, and a self-return spring for controlling the closing of the cup cover is provided inside the cup cover.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: 1. Through the screw drive mechanism composed of the double-cone roller and the threaded rod, combined with the adjustment mechanism of the cone ring and the two double-cone rollers, the present invention realizes the precise synchronous control of the strokes of the two pistons, ensuring the linear adjustment of the volume ratio of the two anesthetics; the intuitive cooperation design of the scale line and the adjustment slider enables medical staff to quickly set the target concentration, and at the same time, the locking mechanism effectively prevents displacement deviation after adjustment through the engagement of upper / lower teeth and the linkage release function of the push plate.

[0016] 2. The mixer of the present invention adopts a rotating structure. Through the meshing transmission of the installation chute and the rack, the second cup body rotates automatically during the removal process, and together with the turbulence protrusions on the inner wall, a turbulence effect is formed to achieve the uniform mixing of the anesthetic; the cup cover and the ejector rod cooperate to realize the automatic opening and closing of the cup cover without additional operation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will further elaborate on the specific implementation manners of the present invention through the drawings.

[0018] Figure 1 It is a schematic structural diagram of the present invention from one angle; Figure 2 It is a schematic structural diagram of the present invention from another angle; Figure 3 It is a schematic structural diagram inside the present invention; Figure 4 For Figure 3 The partial enlarged schematic diagram of A in Figure 5 It is a schematic structural diagram of the driving mechanism of the present invention; Figure 6 It is a schematic structural diagram of the installation chute; Figure 7 It is a schematic structural diagram of the ejector rod; Figure 8 It is a schematic structural diagram of the mixer; Figure 9 It is a cross-sectional view of the mixer.

[0019] In the figure: 1 - Dosimeter, 11 - First chamber, 12 - Second chamber, 13 - Piston, 14 - Threaded rod, 15 - One - way liquid inlet, 16 - Adjusting slider, 17 - Scale line, 18 - Mounting bracket, 19 - Discharge one - way valve, 110 - Mounting chute, 111 - Partition plate, 112 - Pipeline, 2 - Proportion regulator, 21 - Mounting seat, 22 - Tapered roller, 23 - Tapered ring, 24 - Guide rail, 25 - Guide seat, 26 - Guide hole, 3 - Mixer, 31 - First cup, 32 - Second cup, 33 - Guide plate, 34 - External gear ring, 35 - Rack, 36 - Turbulence projection, 37 - Cup cover, 38 - Magnetic part, 39 - Guide magnetic material, 310 - Push rod, 311 - Press - able temporary limiter, 312 - Self - returning spring, 4 - Locking mechanism, 41 - Fixed seat, 42 - Floating block, 43 - Control block, 44 - Vertical chute, 45 - First return spring, 46 - Upper tooth, 47 - Lower tooth, 48 - Horizontal hole, 49 - Second return spring, 410 - Control board, 411 - Push plate, 5 - Driving mechanism, 51 - Driving motor, 52 - Driven gear, 53 - Driving gear. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment: As Figures 1 to 9 shown, an anesthesia concentration - adjustable anesthesia device includes a dosimeter 1, a proportion regulator 2 and a mixer 3. The dosimeter 1 includes a first chamber 11 and a second chamber 12. Pistons 13 are slidably arranged in both the first chamber 11 and the second chamber 12 and cooperate with the pistons 13 to form liquid - suction cavities. Two one - way liquid inlets 15 are arranged on the dosimeter 1, and the two one - way liquid inlets 15 correspond to the liquid - suction cavities of the first chamber 11 and the second chamber 12 one by one, and two kinds of liquids to be mixed are respectively sucked through the two liquid - suction cavities.

[0022] In order to ensure that the two liquid - suction cavities suck the liquid medicine in a set proportion, threaded rods 14 are fixedly connected to both pistons 13. The proportion regulator 2 is arranged at the open end of the dosimeter 1. The proportion regulator 2 includes a mounting seat 21 and two reversely - arranged tapered rollers 22. The mounting seat 21 is relatively fixed to the dosimeter 1. The two tapered rollers 22 are rotatably arranged in the mounting seat 21. The two tapered rollers 22 are respectively in threaded cooperation with the two threaded rods 14. When the tapered rollers 22 rotate, the corresponding threaded rods 14 and pistons 13 are driven to move through the threaded cooperation.

[0023] The two taper rollers 22 are connected by a taper ring 23, and power transmission is carried out through friction with the taper ring 23. A guide rail 24 is fixedly arranged on the mounting seat 21, a guide seat 25 is slidably arranged on the guide rail 24, and a guide hole 26 that cooperates with the taper ring 23 is arranged on the guide seat 25. When the guide seat 25 slides, it drives the taper ring 23 to move relative to the taper rollers 22, thereby changing the transmission ratio between the two taper rollers 22.

[0024] In order to achieve automatic liquid pumping and drainage, a driving mechanism 5 is connected to one of the taper rollers 22 or one of the threaded rods 14.

[0025] In this embodiment, the driving device 5 adopts a driving motor 51. The driving motor 51 is arranged on the mounting seat 21. A driven gear 52 is coaxially fixed on one of the taper rollers 22, and a driving gear 53 that meshes with the driven gear 52 is arranged on the motor shaft of the driving motor 51. When the driving motor 51 operates, it drives the driving gear 53 to rotate, and then drives the taper roller 22 to rotate through the driven gear 52.

[0026] In order to facilitate the movement of the guide seat 25, an adjusting slider 16 is slidably arranged on the proportional regulator 1. A scale line 17 that cooperates with the adjusting slider 16 is arranged on the side wall of the proportional regulator 1. The adjusting slider 16 and the guide seat 25 are connected by a telescopic rod. When the adjusting slider 16 slides along the proportional regulator 1, it drives the guide seat 25 to slide along the guide rail 24.

[0027] Preferably, in order to prevent the guide seat 25 from moving during the liquid suction process, resulting in a liquid suction ratio error, the adjusting slider 16 is connected with a locking mechanism 4. The locking mechanism 4 includes a fixed seat 41, a floating block 42, and a control block 43. The fixed seat 41 is fixedly arranged on the mounting seat 21. A vertical chute 44 is arranged at the upper end of the fixed seat 41. The floating block 42 is slidably arranged in the vertical chute 44. A first return spring 45 is arranged between the floating block 42 and the fixed seat 41. Upper teeth 46 are arranged at the lower end of the adjusting slider 16, and lower teeth 47 that cooperate with the upper teeth 46 are arranged at the upper end of the floating block 42. When the floating block 42 is not subjected to an external force, the lower teeth 47 mesh with the upper teeth 46 to realize the locking of the adjusting slider 16.

[0028] The control block 43 is slidably arranged on the fixed seat 41. A transverse hole 48 for the control block 43 to insert is arranged on the floating block 42. A second return spring 49 is arranged between the control block 43 and the fixed seat 41. The lower end of the transverse hole 48 is a wedge-shaped surface, and one end of the control block 43 close to the floating block 42 is a wedge-shaped block that cooperates with the wedge-shaped surface. When the control block 43 is inserted into the floating block 42, it drives the floating block 42 to move downward through the wedge-shaped block, so that the lower teeth 47 are separated from the upper teeth 46.

[0029] To achieve the automatic opening and closing of the locking mechanism 4, a control board 410 is provided at the lower end of the control block 43, and a push plate 411 cooperating with the control board 410 is provided on one of the threaded rods 14. When the volume of the liquid suction cavity is at the minimum value, the push plate 411 pushes the control board 410 to separate the lower teeth 47 from the upper teeth 46.

[0030] An installation frame 18 is provided at the lower end of the metering device 1, and the mixer 3 is detachably arranged on the installation frame 18. The first chamber 11 and the second chamber 12 are both communicated with the mixer 3 through the discharge one-way valves 19.

[0031] Preferably, the installation frame 18 includes an installation chute 110 arranged along the length direction of the metering device 1. The first chamber 11 and the second chamber 12 are isolated by a partition plate 111. The two discharge one-way valves 19 are respectively arranged on both sides of the partition plate 111. A pipeline 112 is arranged inside the partition plate 111. One end of the pipeline 112 is communicated with the two discharge one-way valves 19, and the other end of the pipeline 112 extends into the installation chute 110. When discharging is required, the liquids in the first chamber 11 and the second chamber 12 are discharged through the two discharge one-way valves 19 and the pipeline 112.

[0032] The mixer 3 includes a first cup body 31 and a second cup body 32 which are rotatably connected. The second cup body 32 is located inside the first cup body 31. After the second cup body 32 reaches the set position, the pipeline 112 can discharge the liquid into the second cup body 32.

[0033] A guide plate 33 is provided at the upper end of the first cup body 31, and it is slidably matched with the installation chute 110 through the guide plate 33. An external gear ring 34 is provided at the upper end of the second cup body 32, and a rack 35 meshing with the external gear ring 34 is arranged in the installation chute 110. When the first cup body 31 moves along the installation chute 110, the cooperation between the external gear ring 34 and the rack 35 drives the second cup body 32 to rotate, so that the two liquids in the second cup body 32 can be mixed. Preferably, the inner wall of the second cup body 32 is provided with turbulence protrusions 36 to improve the uniformity of the liquid medicine.

[0034] To prevent the liquid medicine from spilling during the rotation of the second cup body 32, a cup cover 37 that slides to open and close is provided at the upper end of the second cup body 32. A strip-shaped magnetic member 38 is provided on the cup cover 37. A guiding magnetic material 39 cooperating with the cup cover 37 is arranged between the end of the rack 35 and the inner end of the installation chute 110; both the magnetic member 38 and the guiding magnetic material 39 can be made of magnets. When the cup cover 37 reaches the set position, the guiding magnetic material 39 applies a force to the magnetic member 38 to make it parallel to the guiding magnetic material 39.

[0035] A push rod 310 is provided at the inner end of the installation chute 110. When the second cup body 32 moves to the inner end of the installation chute 110, the cup cover 37 rotates to a direction parallel to the installation chute 110 under the cooperation of the guiding magnetic material 39 and the magnetic part 38, and is in an open state under the push of the push rod 310, facilitating the entry of the liquid medicine in the pipeline 112.

[0036] A pressable temporary limiter 311 cooperating with the first cup body 31 is provided at the inner end of the installation chute 110. When the first cup body 31 reaches the inner end of the installation chute 110, the first cup body 31 is temporarily limited by the pressable temporary limiter 311 to prevent accidental movement of the first cup body 31; when it needs to be taken out, pull the first cup body 31 outward with force to release the limit of the pressable temporary limiter 311. The pressable temporary limiter 311 adopts the existing technology.

[0037] A self-return spring 312 for controlling the closing of the cup cover 37 is provided inside the cup cover 37. When the second cup body 32 leaves the inner end of the installation chute 110, the cup cover 37 closes under the action of the self-return spring 312 to prevent the outflow of the liquid medicine.

[0038] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention, and all such changes should be included within the protection scope of the present invention.

Claims

1. An anesthetic concentration regulating anesthesia device, characterized in that: The invention comprises a dosing device (1), a ratio regulator (2) and a mixer (3), wherein the dosing device (1) comprises a first chamber (11) and a second chamber (12), wherein pistons (13) are slidably arranged in the first chamber (11) and the second chamber (12) and cooperate with the pistons (13) to form a liquid suction chamber, wherein the two pistons (13) are fixedly connected to a threaded rod (14), and the dosing device (1) is provided with two one-way liquid inlets (15), and the two one-way liquid inlets (15) correspond one to one with the liquid suction chambers of the first chamber (11) and the second chamber (12); The proportional regulator (2) is arranged at the open end of the doser (1), and comprises a mounting seat (21) and two tapered rollers (22) arranged in opposite directions. The two tapered rollers (22) are rotatably arranged in the mounting seat (21), the two tapered rollers (22) are respectively threadedly engaged with two threaded rods (14), and the two tapered rollers (22) are transmission-connected via a tapered ring (23). A guide rail (24) is fixedly arranged on the mounting seat (21), a guide seat (25) is slidably arranged on the guide rail (24), and a guide hole (26) engaging with the tapered ring (23) is arranged on the guide seat (25); An adjusting slider (16) is slidably disposed on the proportional regulator (2), a scale line (17) cooperating with the adjusting slider (16) is disposed on a side wall of the proportional regulator (2), the adjusting slider (16) is connected to the guide seat (25) via a telescopic rod, and when the adjusting slider (16) slides along the proportional regulator (2), the guide seat (25) is driven to slide along the guide rail (24); A mounting frame (18) is provided at the lower end of the doser (1), and the mixer (3) is detachably mounted on the mounting frame (18). Both the first chamber (11) and the second chamber (12) are connected to the mixer (3) via a discharge one-way valve (19).

2. The anesthetic concentration regulating anesthesia device according to claim 1, characterized in that: The adjusting slider (16) is connected to a locking mechanism (4), the locking mechanism (4) comprising a fixed seat (41), a floating block (42) and a control block (43); the fixed seat (41) is fixedly arranged on the mounting seat (21); a vertical slide groove (44) is arranged at the upper end of the fixed seat (41); the floating block (42) is slidably arranged in the vertical slide groove (44); a first return spring (45) is arranged between the floating block (42) and the fixed seat (41); an upper tooth (46) is arranged at the lower end of the adjusting slider (16); a lower tooth (47) matched with the upper tooth (46) is arranged at the upper end of the floating block (42); the control block (43) is slidably arranged on the fixed seat (41); a transverse hole (48) for inserting the control block (43) is arranged on the floating block (42); a second return spring (49) is arranged between the control block (43) and the fixed seat (41); The lower end of the transverse hole (48) is a wedge-shaped surface, and one end of the control block (43) close to the floating block (42) is a wedge-shaped block that matches the wedge-shaped surface.

3. The anesthetic concentration regulating anesthesia device according to claim 2, characterized in that: A control plate (410) is provided at the lower end of the control block (43), and a push plate (411) cooperating with the control plate (410) is provided on one of the threaded rods (14). When the volume of the liquid suction chamber is at a minimum value, the push plate (411) pushes the control plate (410) and separates the lower teeth (47) from the upper teeth (46).

4. The anesthetic concentration regulating anesthesia device according to claim 1, characterized in that: One of the tapered rollers (22) or one of the threaded rods (14) is connected to a drive mechanism (5).

5. The anesthetic concentration regulating anesthesia device according to claim 4, characterized in that: The driving device (5) comprises a driving motor (51) which is arranged on a mounting seat (21), wherein a driven gear (52) is coaxially fixedly connected to one of the tapered rollers (22), and a driving gear (53) meshing with the driven gear (52) is arranged on the motor shaft of the driving motor (51).

6. The anesthetic concentration regulating anesthesia device according to claim 1, characterized in that: The mounting frame (18) comprises a mounting chute (110) arranged along the length direction of the doser (1); the first chamber (11) and the second chamber (12) are separated by a partition plate (111); two discharge one-way valves (19) are respectively arranged on both sides of the partition plate (111); a pipeline (112) is arranged in the partition plate (111); one end of the pipeline (112) is connected to the two discharge one-way valves (19); and the other end of the pipeline (112) extends into the mounting chute (110).

7. The anesthetic concentration regulating anesthesia device according to claim 6, characterized in that: The mixer (3) comprises a first cup body (31) and a second cup body (32) which are rotatably connected, the second cup body (32) being located inside the first cup body (31), the upper end of the first cup body (31) being provided with a guide plate (33) which slidably cooperates with a mounting slide groove (110), the upper end of the second cup body (32) being provided with an outer gear ring (34), and the mounting slide groove (110) being provided with a rack (35) which meshes with the outer gear ring (34).

8. The anesthetic concentration regulating anesthesia device according to claim 7, characterized in that: The inner wall of the second cup body (32) is provided with a flow-disturbing protrusion (36).

9. The anesthetic concentration regulating anesthesia device according to claim 7, characterized in that: A cup cover (37) that can be slid open and closed is disposed at the upper end of the second cup body (32), a long strip of magnetic member (38) is disposed on the cup cover (37), and a guide magnetic material (39) that cooperates with the cup cover (37) is disposed between the end of the rack (35) and the inner end of the mounting slide groove (110); A push rod (310) is provided at the inner end of the mounting slide groove (110). When the second cup body (32) moves to the inner end of the mounting slide groove (110), the cup cover (37) rotates to a direction parallel to the mounting slide groove (110) under the cooperation of the guide magnetic material (39) and the magnetic member (38), and is pushed by the push rod (310) to be in an open state.

10. The anesthetic concentration regulating anesthesia device according to claim 9, characterized in that: A pressable temporary stopper (311) cooperating with the first cup body (31) is provided at the inner end of the installation slide groove (110), and a self-returning spring (312) for controlling the closing of the cup cover (37) is provided in the cup cover (37).

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