Hydraulic driving type anesthesia booster

Abstract

The present invention relates to the technical field of anesthesia boosters, and in particular, to a hydraulic driving type anesthesia booster, comprising: a main unit comprising a driving cylinder and a pushing block, the driving cylinder being internally provided with a first cavity and provided with a medium outlet; the pushing block sliding in the first cavity; in the first cavity, a flow medium being filled between the medium outlet and the pushing block; a handle comprising an execution cylinder, a medicine bottle seat and a piston rod, the execution cylinder being internally provided with a second cavity, and one end of the execution cylinder being provided with a medium inlet; the medicine bottle seat being used for placing a medicine bottle, one end of the medicine bottle seat being detachably connected to the execution cylinder, and the other end of the medicine bottle seat being detachably connected to a needle head; the piston rod being slidably arranged in the second cavity, one end of the piston rod extending to the outer side of the execution cylinder and abutting against the medicine bottle, and the other end of the piston rod being provided with an attaching part attached to the inner wall of the second cavity; and a guide pipe used for communicating the medium outlet with the medium inlet. The hydraulic driving type anesthesia booster of the present invention can improve the operation hand feeling of a doctor and reduce the use cost of the device.

Description

A hydraulically driven anesthesia booster Technical Field

[0001] The present invention relates to the technical field of anesthesia boosters, in particular to a hydraulically driven anesthesia booster. Background Art

[0002] During the oral anesthetic injection process, patients can experience severe pain if the drug is not injected slowly and evenly. Traditionally, metering and injection pressure control relies on manual force and the doctor's experience, which can easily lead to excessive pressure, tissue damage, and pain. Therefore, anesthesia boosters have emerged that use a mechanical drive unit to push the drug bottle, controlling the injection pressure and metering at a constant rate and pressure, to help doctors solve this problem.

[0003] The anesthesia boosters currently available on the market are mainly of two types: handheld and desktop.

[0004] The handheld anesthesia booster has all components installed on the handle, which makes it easy to carry as a whole. However, since the medicine bottle, drive unit and other components are all concentrated on the handle, it will cause it to be too heavy, and it will be inconvenient to control the injection during the injection process, which can easily affect the stability of the doctor's hand and lead to poor anesthesia effect.

[0005] The desktop anesthesia booster has the medicine bottle, drive unit, etc. installed on the main unit, which can be placed on the table. The needle tip and the medicine bottle are then connected with a catheter to reduce the weight of the handheld part. However, since the catheter has liquid medicine passing through it, it can only be used once. After each injection, the needle tip, catheter and medicine bottle need to be replaced. In addition, since the catheter is long, a lot of residual liquid medicine inside it will cause waste, resulting in a higher overall cost of using the device.

[0006] In view of the above problems, the designer, based on many years of rich practical experience and professional knowledge in the engineering application of this type of product, and in conjunction with the application of academic theory, actively carried out research and innovation, and designed a hydraulically driven anesthesia booster that can improve the doctor's operating feel and reduce the cost of equipment use.

[0007] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art.

[0008] Summary of the Invention

[0009] The purpose of the present invention is to provide a hydraulically driven anesthesia booster to address the defects in the prior art, so as to solve the problems that the existing anesthesia booster is inconvenient for doctors to use and the high cost of the equipment.

[0010] In order to achieve the above object, the technical solution adopted by the present invention includes:

[0011] The main unit includes a drive cylinder and a push block; a first cavity is provided in the drive cylinder, and a medium outlet is provided for connecting the outside and the first cavity; the push block slides within the first cavity toward and away from the medium outlet; the first cavity is filled with a flowing medium between the medium outlet and the push block;

[0012] The handle includes an actuator cylinder, a medicine bottle holder, and a piston rod; a second cavity is provided in the actuator cylinder, and a medium inlet is provided at one end thereof for connecting the outside and the second cavity; the medicine bottle holder is used to place the medicine bottle, and one end is detachably connected to the other end of the actuator cylinder, and the other end is detachably connected to the needle; the piston rod is slidably provided in the second cavity, and one end extends to the outside of the actuator cylinder and abuts against the medicine bottle, and the other end is provided with a fitting portion that fits the inner wall of the second cavity;

[0013] The conduit is used to connect the medium outlet and the medium inlet.

[0014] Furthermore, the handle further comprises an elastic mechanism, and the elastic mechanism is sleeved on a portion of the piston rod located in the second cavity.

[0015] Furthermore, the host further includes a pressure gauge provided at one end of the first cavity for monitoring pressure information of the flowing medium.

[0016] Furthermore, the host also includes a driving circuit board for collecting pressure information monitored by the pressure gauge and controlling the sliding speed of the push block according to the pressure information so that the pressure information is kept within a set range.

[0017] Furthermore, the main machine also includes a power seat, a threaded sleeve, a power device and a screw rod; the power seat is detachably connected to one end of the drive cylinder; the threaded sleeve rotates along a fixed axis on the power seat and is driven to rotate by the power device; the screw rod is screwed into the threaded sleeve, and one end of the screw rod is fixedly connected to the pushing block; the screw rod is provided with a slide groove extending along the length direction; the main machine also includes a positioning pin fixedly mounted on the power seat, and one end of the positioning pin extends into the slide groove.

[0018] Furthermore, the elastic mechanism includes a first spring sleeved on the piston rod, with two ends respectively abutting against the end surface of the inner wall of the second cavity and the end surface of the fitting portion.

[0019] Furthermore, the elastic mechanism includes a connecting sleeve, a second spring and a third spring, all of which are sleeved on the piston rod; the connecting sleeve is provided with a first abutting edge and a second abutting edge; the two ends of the second spring respectively abut against the end face of the inner wall of the second cavity and the first abutting edge; the second abutting edge extends into the second spring; the two ends of the third spring respectively abut against the end face of the fitting portion and the second abutting edge.

[0020] Furthermore, a clamping groove is provided on the end surface of the inner wall of the second cavity and / or the end surface of the piston rod for clamping the end of the elastic mechanism.

[0021] Furthermore, the medium inlet is provided at the end of the actuator cylinder, and the center line of the medium inlet coincides with the center line of the piston rod, and when the flowing medium enters from the medium inlet, it pushes the end of the piston rod.

[0022] Furthermore, a gradually expanding section is provided near one end of the piston rod at the medium inlet, and the gradually expanding section is a hole-shaped structure that gradually expands toward the piston rod.

[0023] Furthermore, a first annular groove is provided on the side of the fitting portion; a first sealing ring is provided in the first annular groove; and a plurality of first through holes are provided on the end surface of the fitting portion facing the medium inlet, and the first through holes are connected to the first annular groove.

[0024] Furthermore, the pushing block includes a rear block and a front block; a clamping portion is provided on the end face of the front block facing the rear block, and the clamping portion extends into the rear block; a second annular groove is provided on the side face of the rear block; a second sealing ring is provided in the second annular groove; a third annular groove is provided on the side face of the front block; a third sealing ring is provided in the third annular groove; a plurality of second through holes are provided on the end face of the front block facing the medium outlet, and the second through holes are connected to the second annular groove.

[0025] The technical solution of the present invention can achieve the following technical effects:

[0026] The present invention places the medicine bottle on the handle and uses the fluid medium pushed out by the main unit to push the piston rod in the handle, ultimately pushing the rubber sealing plug on the medicine bottle, thereby completing the anesthetic boosting operation. The medicine bottle of the present invention can be added with medicine and replaced. Compared with the existing desktop anesthesia pusher, the present invention only needs to replace the needle and the anesthetic bottle itself, and the catheter can be used continuously, thereby greatly reducing the use cost of the present invention; compared with the existing handheld anesthesia pusher, the present invention places the driving components with larger volume and weight on the main unit, and adopts a hydraulic drive solution. The handle only needs to be placed with an actuator cylinder, which can reduce the length and weight of the handle as much as possible, making it convenient for doctors and nurses to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] FIG1 is a schematic structural diagram of a hydraulically driven anesthesia booster according to an embodiment of the present invention;

[0029] FIG2 is a diagram showing the components of a host computer according to an embodiment of the present invention;

[0030] FIG3 is a side sectional view of a host computer according to an embodiment of the present invention;

[0031] FIG4 is an enlarged view of point A in FIG3 according to an embodiment of the present invention;

[0032] FIG5 is an exploded view of the components of the handle according to an embodiment of the present invention;

[0033] FIG6 is a side sectional view of the handle of Example 1 according to an embodiment of the present invention;

[0034] FIG7 is an enlarged view of point B in FIG6 according to an embodiment of the present invention;

[0035] FIG8 is a side sectional view of the handle of Example 2 according to an embodiment of the present invention;

[0036] FIG9 is an enlarged view of point C in FIG8 according to an embodiment of the present invention;

[0037] Reference numerals: main unit 1, driving cylinder 11, first cavity 111, medium outlet 112, pushing block 12, rear block 121, front block 122, clamping portion 123, second annular groove 124, second sealing ring 125, third annular groove 126, third sealing ring 127, second through hole 128, pressure gauge 13, driving circuit board 14, power seat 15, threaded sleeve 16, power device 17, screw rod 18, slide groove 181, positioning Pin 19, handle 2, actuator cylinder 21, second cavity 211, medium inlet 212, gradually expanding section 213, medicine bottle seat 22, piston rod 23, fitting portion 231, first annular groove 232, first sealing ring 233, first through hole 234, elastic mechanism 24, first spring 241, connecting sleeve 242, second spring 243, third spring 244, first abutting edge 245, second abutting edge 246, card slot 25, catheter 3. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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, rather than all the embodiments.

[0039] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; they may refer to mechanical or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] Example 1

[0042] A hydraulically driven anesthesia booster, as shown in Figures 1 to 7, comprises:

[0043] The main unit 1 includes a drive cylinder 11 and a push block 12; a first cavity 111 is provided in the drive cylinder 11, and a medium outlet 112 is provided to connect the outside and the first cavity 111; the push block 12 slides within the first cavity 111 toward and away from the medium outlet 112; the first cavity 111 is filled with a flowing medium between the medium outlet 112 and the push block 12. The flowing medium can be a liquid such as pressurized oil, water, or alcohol. Pressurized oil is most preferably used to obtain the best force transmission effect.

[0044] The handle 2 includes an actuator cylinder 21, a medicine bottle seat 22 and a piston rod 23; a second cavity 211 is set in the actuator cylinder 21, and a medium inlet 212 connecting the outside and the second cavity 211 is set at one end; the medicine bottle seat 22 is used to place the medicine bottle, and one end is detachably connected to the other end of the actuator cylinder 21, and the other end is provided with a needle insertion port and is detachably connected to the needle. After the needle is installed, its tail will extend into the medicine bottle seat 22 and penetrate into the medicine bottle, so that the medicine liquid in the medicine bottle can flow into the needle. The detachable installation method of the two places can be achieved in various forms such as screw fixing, threaded sleeve matching and tightening; the piston rod 23 is slidably set in the second cavity 211, and one end extends to the outside of the actuator cylinder 21 and rests against the rubber sealing plug of the medicine bottle, and the other end is provided with a fitting portion 231 that fits with the inner wall of the second cavity 211.

[0045] The conduit 3 is used to connect the medium outlet 112 and the medium inlet 212 .

[0046] The handle 2 is preferably further provided with an elastic mechanism 24 , which is sleeved on a portion of the piston rod 23 located in the second cavity 211 and is used to assist the piston rod 23 in quickly resetting.

[0047] Specifically, the working principle of this anesthesia booster is as follows: in the main unit 1, by sliding the pushing block 12 toward the medium outlet 112, the pushing block 12 can push the flowing medium out of the medium outlet 112, and the flowing medium flows into the medium inlet 212 along the catheter 3, and then pushes the fitting part 231 of the piston rod 23, so that the piston rod 23 moves as a whole toward the medicine bottle, thereby pushing the rubber sealing plug on the medicine bottle and compressing the elastic mechanism 24, and finally pushing the medicine liquid in the medicine bottle out of the needle; after the medicine liquid is injected, the pushing block 12 slides in the direction away from the medium outlet 112, and the flowing medium is sucked back into the driving cylinder 11 through the catheter 3, and the compressed elastic mechanism 24 will also generate elastic deformation force to push the piston rod 23 to reset, and push the flowing medium out of the execution cylinder 21 to assist the flowing medium to return to the driving cylinder 11, and then remove the medicine bottle holder 22, replace the medicine bottle and needle, and then proceed with the next round of anesthesia. Compared with the existing desktop anesthesia pusher, the present invention only needs to replace the needle and the medicine bottle, and the catheter 3 can be used continuously, which greatly reduces the use cost of the present invention; compared with the existing handheld anesthesia pusher, the present invention places the driving components with larger volume and weight on the main unit 1, and adopts a hydraulic drive solution. The handle 2 only needs to place an actuator cylinder 21, which can reduce the length and weight of the handle 2 as much as possible, making it convenient for doctors and nurses to use.

[0048] During the anesthesia process, if the pressure of the injected anesthetic is too high, it will cause tissue damage, patient pain and other problems. The pressure of the flowing medium needs to be monitored. Therefore, preferably, the host 1 also includes a pressure gauge 13 arranged at one end of the first cavity 111, which is used to monitor the pressure information of the flowing medium. The pressure information is transmitted to the outside and fed back to the doctor in the form of sound, image, tactile vibration, etc.; or, the host 1 can also be provided with a driving circuit board 14, and the terminal of the pressure gauge 13 is connected to the driving circuit board 14. The driving circuit board 14 has a built-in automatic control program for collecting the pressure information monitored by the pressure gauge 13, and can control the sliding speed of the push block 12 in real time and accurately according to the pressure information, so that the pressure information is kept within the set range, achieving smaller pressure fluctuations, so as to achieve better injection effects and reduce the patient's pain.

[0049] As a preferred structure for driving the pushing block 12 to move, the main machine 1 also includes a power seat 15, a threaded sleeve 16, a power device 17 and a screw rod 18; the power seat 15 is detachably connected to one end of the driving cylinder 11; the threaded sleeve 16 rotates along a fixed axis on the power seat 15 and is driven to rotate by the power device 17; the screw rod 18 is screwed into the threaded sleeve 16, and one end of the screw rod 18 is fixedly connected to the pushing block 12. This structure can drive the screw rod 18 to move forward or backward by rotating the threaded sleeve 16 forward or reverse, thereby pushing the pushing block 12 to move.

[0050] Conventional hydraulic systems typically utilize a fuel tank and control valve to achieve fluid flow. This results in complex structures and poor reliability, particularly due to low control accuracy, making them unsuitable for high-precision medical applications. This structure, however, utilizes the threaded engagement between the threaded sleeve 16 and the screw 18 for propulsion, resulting in high control accuracy. The threaded engagement is self-locking, meaning that active rotation of the sleeve 16 can drive the screw 18, but active movement of the screw 18 is unlikely to drive the sleeve 16 to rotate. This allows for precise stopping during operation, thereby ensuring accurate anesthetic injection. The power unit 17 can be connected to the drive circuit board 14 to form a closed-loop control loop, enabling automatic and precise control of the pressure of the entire hydraulic system. Furthermore, this structure is simpler than conventional hydraulic systems, reducing maintenance costs and difficulty, resulting in lower maintenance costs and greater ease of maintenance. The power unit 17 and the sleeve 16 are preferably connected via a reduction mechanism, such as a reduction gearbox or reduction gear set, enabling the power unit 17 to more precisely control the number of revolutions of the sleeve 16.

[0051] The screw rod 18 is preferably provided with a slide groove 181 extending along the length direction; the main machine 1 also includes a positioning pin 19 fixedly mounted on the power seat 15, and one end of the positioning pin 19 extends into the slide groove 181. During the rotation of the threaded sleeve 16, the positioning pin 19 can effectively prevent the screw rod 18 from rotating with the threaded sleeve 16, and make the screw rod 18 move linearly toward the first cavity 111, thereby further ensuring the precise control of the threaded sleeve 16 by the power device 17.

[0052] In this embodiment, the elastic mechanism 24 includes a first spring 241 mounted on the piston rod 23, with its two ends respectively pressing against the inner wall end face of the second cavity 211 and the end face of the fitting portion 231 facing the medicine bottle. The function of the elastic mechanism 24 can be achieved through the simplest structure, reducing the manufacturing and maintenance costs of the present invention.

[0053] In the handle 2 , a clamping groove 25 is preferably provided on the inner wall end surface of the second cavity 211 and / or the end surface of the piston rod 23 for clamping the end of the elastic mechanism 24 , thereby preventing the elastic mechanism 24 from being skewed and affecting the normal operation of the handle 2 .

[0054] Preferably, the medium inlet 212 is provided at the end of the actuator cylinder 21, and the centerline of the medium inlet 212 coincides with the centerline of the piston rod 23. This allows the flowing medium to push the end of the piston rod 23 when entering through the medium inlet 212, and the main thrust is applied on the centerline of the piston rod 23, thereby ensuring the smooth movement of the piston rod 23. The medium inlet 212 is preferably provided with a gradually expanding section 213 near one end of the piston rod 23. The gradually expanding section 213 has a hole-shaped structure that gradually expands toward the piston rod 23. After the flowing medium passes through the medium inlet 212, the gradually expanding section 213 can evenly spread the flowing medium, so that when the handle 2 is activated, the flowing medium has a larger area of ​​action on the piston rod 23, thereby preventing the piston rod 23 from being subjected to sudden concentrated force and causing shaking, which affects the stability of the doctor's or nurse's hand. Preferably, a first annular groove 232 is provided on the side of the fitting portion 231; a first sealing ring 233 is provided in the first annular groove 232, and the first sealing ring 233 fits the inner wall of the actuator cylinder 21 and the inner wall of the first annular groove 232; a plurality of first through holes 234 are provided on the end surface of the fitting portion 231 facing the medium inlet 212, and the first through holes 234 are connected to the first annular groove 232. This structure allows the flowing medium to enter the first annular groove 232 through the first through holes 234 to lubricate the first sealing ring 233. At the same time, The flowing medium with a certain pressure can generate thrust on the surface of the first sealing ring 233 and the end face of the fitting part 231, and the force-bearing area is larger, which can further ensure that the piston rod 23 can move smoothly; the first through hole 234 is preferably also connected to the gradually expanding section 213. When the end face of the fitting part 231 is in contact with the end face of the inner wall of the actuator cylinder 21, the flowing medium can also enter the first annular groove 232 through the first through hole 234 to push the first sealing ring 233, so that the piston rod 23 can start quickly.

[0055] In order to facilitate the manufacture and installation of the pushing block 12, the preferred structure of the pushing block 12 includes a rear block 121 and a front block 122, and the rear block 121 is connected to the screw rod 18; a clamping portion 123 is provided on the end face of the front block 122 facing the rear block 121, and the clamping portion 123 extends into the rear block 121. The top of the clamping portion 123 is provided with a thread selected into the rear block 121, thereby realizing the fixation between the rear block 121 and the front block 122. At the same time, the clamping portion 123 can also increase the contact area between the rear block 121 and the front block 122, so that the relative position between the rear block 121 and the front block 122 is kept better fixed, reducing the shaking that may be generated by the rear block 121 and the front block 122 during the movement, and ensuring the normal operation of the device. Preferably, a second annular groove 124 is provided on the side of the rear block 121; a second sealing ring 125 is provided in the second annular groove 124; a third annular groove 126 is provided on the side of the front block 122; a third sealing ring 127 is provided in the third annular groove 126; a plurality of second through holes 128 are provided on the end face of the front block 122 facing the medium outlet 112, and the second through holes 128 are connected to the second annular groove 124. The second through holes 128 can also allow the flowing medium to enter the second annular groove 124 to lubricate the second sealing ring 125. At the same time, after the flowing medium with moving pressure enters the second annular groove 124, it will generate a pressure F as shown in Figure 4 on the inner wall of the second annular groove 124. The pressure F will push the wall surface of the rear block 121 toward the clamping portion 123, so that the rear block 121 and the clamping portion 123 are directly fitted more tightly, and can also further compress the third sealing ring 127, so that the sealing effect of the third sealing ring 127 is better.

[0056] Example 2

[0057] A hydraulically driven anesthesia booster, as shown in Figures 1 to 5 and Figures 8 to 9, is different from the first embodiment in that the elastic mechanism 24 of this embodiment includes a connecting sleeve 242, a second spring 243 and a third spring 244, all of which are sleeved on the piston rod 23; the connecting sleeve 242 is provided with a first abutting edge 245 and a second abutting edge 246; the two ends of the second spring 243 respectively abut the end face of the inner wall of the second cavity 211 and the first abutting edge 245; the second abutting edge 246 extends into the second spring 243; the two ends of the third spring 244 respectively abut the end face of the fitting portion 231 facing the medicine bottle and the second abutting edge 246. The design principle of this structure is that, through the connecting sleeve 242, part of the third spring 244 can be extended into the interior of the second spring 243, thereby effectively reducing the length of the elastic mechanism 24, and further reducing the length of the handle 2, thereby improving the comfort of use for doctors and nurses; at the same time, as the spring is compressed more tightly, the reaction force of the elastic deformation generated by it will be greater, acting on the piston rod 23, and will offset the thrust of the flowing medium. As the piston rod 23 moves, the pushing ability of the flowing medium on the piston rod 23 will be greatly reduced. However, through the connecting sleeve 242, this structure can share the deformation amount when the elastic mechanism 24 of embodiment 1 produces the same compression amount. The second spring 243 and the third spring 244 of this embodiment can share the deformation amount. The deformation degree of the second spring 243 and the third spring 244 is only half of that of the first spring 241, thereby ensuring that the deformation force generated by the second spring 243 and the third spring 244 has less influence on the sliding of the piston rod 23, further ensuring the normal operation of the equipment.

[0058] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulically driven anesthesia booster, characterized in that: include: A main machine (1) comprises a driving cylinder (11) and a pushing block (12); a first cavity (111) is arranged in the driving cylinder (11), and a medium outlet (112) is arranged to communicate with the outside and the first cavity (111); the pushing block (12) slides in the first cavity (111) to approach and move away from the medium outlet (112); the first cavity (111) is filled with flowing medium between the medium outlet (112) and the pushing block (12); The handle (2) comprises an actuating cylinder (21), a medicine bottle holder (22) and a piston rod (23); a second cavity (211) is arranged in the actuating cylinder (21), and a medium inlet (212) communicating with the outside and the second cavity (211) is arranged at one end; the medicine bottle holder (22) is used to place the medicine bottle, and one end is detachably connected to the other end of the actuating cylinder (21), and the other end is detachably connected to the needle; the piston rod (23) is slidably arranged in the second cavity (211), and one end extends to the outside of the actuating cylinder (21) and abuts against the medicine bottle, and the other end is provided with a fitting portion (231) fitted with the inner wall of the second cavity (211); The conduit (3) is used to connect the medium outlet (112) and the medium inlet (212).

2. The hydraulically driven anesthesia booster according to claim 1, characterized in that: The handle (2) further comprises an elastic mechanism (24), wherein the elastic mechanism (24) is mounted on a portion of the piston rod (23) located within the second cavity (211).

3. The hydraulically driven anesthesia booster according to claim 1, characterized in that: The host (1) further comprises a pressure gauge (13) arranged at one end of the first cavity (111) and used for monitoring pressure information of the flowing medium.

4. The hydraulically driven anesthesia booster according to claim 3, characterized in that: The host (1) also includes a driving circuit board (14) for collecting pressure information monitored by the pressure gauge (13) and controlling the sliding speed of the push block (12) according to the pressure information so that the pressure information is kept within a set range.

5. The hydraulically driven anesthesia booster according to claim 1, characterized in that: The main machine (1) further comprises a power seat (15), a threaded sleeve (16), a power device (17) and a screw rod (18); the power seat (15) is detachably connected to one end of the driving cylinder (11); the threaded sleeve (16) rotates along a fixed axis on the power seat (15) and is driven to rotate by the power device (17); the screw rod (18) is screwed into the threaded sleeve (16), and one end of the screw rod (18) is fixedly connected to the pushing block (12); the screw rod (18) is provided with a slide groove (181) extending along the length direction; the main machine (1) further comprises a positioning pin (19) fixedly mounted on the power seat (15), and one end of the positioning pin (19) extends into the slide groove (181).

6. The hydraulically driven anesthesia booster according to claim 2, characterized in that: The elastic mechanism (24) comprises a first spring (241) sleeved on the piston rod (23), with two ends respectively abutting against the inner wall end surface of the second cavity (211) and the end surface of the fitting portion (231).

7. The hydraulically driven anesthesia booster according to claim 2, characterized in that: The elastic mechanism (24) comprises a connecting sleeve (242), a second spring (243) and a third spring (244) which are all sleeved on the piston rod (23); the connecting sleeve (242) is provided with a first abutting edge (245) and a second abutting edge (246); two ends of the second spring (243) respectively abut against the end surface of the inner wall of the second cavity (211) and the first abutting edge (245); the second abutting edge (246) extends into the second spring (243); two ends of the third spring (244) respectively abut against the end surface of the fitting portion (231) and the second abutting edge (246).

8. The hydraulically driven anesthesia booster according to claim 2, characterized in that: The inner wall end surface of the second cavity (211) and / or the end surface of the piston rod (23) are provided with a clamping groove (25) for clamping the end of the elastic mechanism (24).

9. The hydraulically driven anesthesia booster according to claim 1, characterized in that: The medium inlet (212) is arranged at the end of the actuator cylinder (21), and the center line of the medium inlet (212) coincides with the center line of the piston rod (23). When the flowing medium enters from the medium inlet (212), it pushes the end of the piston rod (23).

10. The hydraulically driven anesthesia booster according to claim 9, characterized in that: A gradually expanding section (213) is arranged near one end of the piston rod (23) at the medium inlet (212), and the gradually expanding section (213) is a hole-shaped structure that gradually expands toward the piston rod (23).

11. The hydraulically driven anesthesia booster according to claim 10, characterized in that: A first annular groove (232) is arranged on the side of the fitting portion (231); a first sealing ring (233) is arranged in the first annular groove (232); and a plurality of first through holes (234) are arranged on the end surface of the fitting portion (231) facing the medium inlet (212), and the first through holes (234) are connected to the first annular groove (232).

12. The hydraulically driven anesthesia booster according to claim 1, characterized in that: The pushing block (12) comprises a rear block (121) and a front block (122); a clamping portion (123) is arranged on the end surface of the front block (122) facing the rear block (121), and the clamping portion (123) extends into the rear block (121); a second annular groove (124) is arranged on the side surface of the rear block (121); a second sealing ring (125) is arranged in the second annular groove (124); a third annular groove (126) is arranged on the side surface of the front block (122); a third sealing ring (127) is arranged in the third annular groove (126); a plurality of second through holes (128) are arranged on the end surface of the front block (122) facing the medium outlet (112), and the second through holes (128) are connected to the second annular groove (124).

Images