High-precision anesthetic injection device

Abstract

The utility model discloses a high-precision anesthetic pushing and injecting device which comprises a supporting seat and a speed reduction driving mechanism, the supporting seat is of a long-strip-shaped structure, one section of the supporting seat serves as a fixed section and is provided with a clamping mechanism matched with an empty cylinder of an injector, and the speed reduction driving mechanism is arranged on the supporting seat. The other section of the supporting base serves as a pushing section and is provided with a pushing mechanism matched with an injector piston handle. The speed reduction driving mechanism can drive the pushing mechanism to move in the length direction of the supporting base so as to push the piston handle to achieve injection of anesthetic. The utility model aims to provide the high-precision anesthetic injection device, which can assist an anesthetist in performing anesthetic injection operation during operation, replaces the original manual injection with high-precision injection under the cooperation of the speed reduction driving mechanism and the pushing mechanism, and is good in use effect, low in labor intensity and high in efficiency. And an anesthetist can accurately control the injection dosage of the medicine.

Description

Technical Field

[0001] The utility model relates to the technical field of clinical anesthesia auxiliary equipment, and specifically to a high-precision anesthetic drug push injection device. Background Art

[0002] Anesthesia means using drugs or other methods to temporarily make the patient lose all or part of the sensation in order to achieve painless surgery. Anesthesiology is a science that uses the basic theories, clinical knowledge and techniques of anesthesia to eliminate surgical pain, ensure patient safety and create good conditions for surgery. Now, anesthesiology has become a specialized independent discipline in clinical medicine, mainly including clinical anesthesiology, emergency resuscitation medicine, intensive care monitoring and treatment, pain diagnosis and treatment, and other related medicine and its mechanism research. It is a comprehensive discipline that studies anesthesia, analgesia, emergency resuscitation and critical care medicine. Among them, clinical anesthesia is the main part of modern anesthesiology.

[0003] At present, in clinical practice, anesthetic drugs are still directly injected with syringes, that is, the anesthetic drugs are first placed in the empty barrel of the syringe, and then the needle is punctured into the patient's tissue to be anesthetized, and then the anesthesiologist pushes the piston handle to inject the anesthetic drugs into the patient's body. On the one hand, the uniformity of pushing by hand alone is difficult to control, which can easily cause discomfort to patients; on the other hand, the anesthesia operation time for different patients and different parts ranges from tens of seconds to more than ten minutes. When the operation time is long, the anesthesiologist needs to pay attention to the remaining amount of drugs while pushing by hand, which is labor-intensive; in addition, it is also difficult to accurately control the injection dose of anesthetic drugs by hand, which can easily bring many risks to subsequent diagnosis and treatment. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a high-precision anesthetic drug push injection device, which can assist the anesthesiologist in performing the anesthetic drug push injection operation during operation, and replace the original manual push injection with a high-precision push injection under the coordination of a reduction drive mechanism and a pushing mechanism. It has good use effect, low labor intensity, and is beneficial for the anesthesiologist to accurately control the drug injection dosage, thereby solving the technical problems described in the background technology.

[0005] The utility model provides a high-precision anesthetic drug push injection device, the key of which is that it includes a support seat and a deceleration drive mechanism, the support seat is in a long strip structure, and one section of the support seat is provided with a clamping mechanism adapted to the empty barrel of the syringe as a fixed section, and the other section of the support seat is provided with a pushing mechanism adapted to the piston handle of the syringe as a pushing section; wherein: the deceleration drive mechanism can drive the pushing mechanism to move along the length direction of the support seat to push the piston handle to achieve the injection of the anesthetic drug.

[0006] Furthermore, the clamping mechanism includes a first clamping member and a second clamping member, the first clamping member is provided with a first opening for the empty barrel nipple to pass through, the second clamping member is provided with a second opening for the syringe piston shaft to pass through, and the spacing between the first clamping member and the second clamping member is adjustable.

[0007] Furthermore, the first clamping member is fixedly connected to the end of the support seat as a fixed clamping member, the second clamping member is elastically connected to the support seat as a movable clamping member, and an empty tube pad is also provided between the first clamping member and the second clamping member.

[0008] Furthermore, a guide groove is provided in the length direction of the support seat, a telescopic frame connected to the second clamping member is provided in the guide groove, a rack is provided in the length direction of the telescopic frame, a gear is meshed with one side of the rack, and the gear is connected to the support seat through a worm spring shaft.

[0009] Furthermore, the reduction drive mechanism includes a slide arranged in the pushing section along the length direction, the slide is provided with a sliding seat and a screw rod matching the sliding seat, one end of the screw rod passes through the slide and is connected to the drive motor through a planetary reduction assembly.

[0010] Furthermore, the planetary reduction assembly includes a housing and a ring gear arranged on the inner circumferential surface of the housing. A sun gear connected to the output shaft of the drive motor is also arranged at the axis center of the housing. A plurality of planetary gears are meshed between the sun gear and the ring gear. The plurality of planetary gears are connected to the screw through a planetary carrier.

[0011] Furthermore, the pushing mechanism comprises a pushing plate erected on the sliding seat, and a hook for hanging a piston handle is connected to the pushing plate via a movable sleeve.

[0012] Furthermore, a handle is provided on one side of the support base, and a trigger switch is provided between the handle and the support base. The trigger switch is connected to the control circuit of the drive motor to control the speed and direction of the drive motor.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) Under the synergistic effect of the deceleration drive mechanism and the pushing mechanism, the original manual push injection is replaced by automatic push injection, which can not only ensure that the syringe piston shaft is pushed forward at a uniform speed to reduce the patient's discomfort and the labor intensity of the anesthesiologist, but also help the anesthesiologist to accurately control the injection dose of anesthetic drugs, thereby overcoming many problems caused by manual push injection;

[0015] (2) The clamping mechanism can not only adapt to various syringe sizes, but also facilitate the accurate positioning of the syringe on the support seat, ensuring that the syringe piston handle moves axially when pushed open, while also reducing the risk of needle shaking during the injection of anesthetic drugs, making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A three-dimensional diagram of the high-precision anesthetic injection device in Example 1 (I);

[0018] Figure 2 It is a three-dimensional diagram (II) of the high-precision anesthetic drug injection device in Example 1;

[0019] Figure 3 The third is a stereoscopic diagram of the high-precision anesthetic injection device in Example 1;

[0020] Figure 4 It is an assembly diagram (I) of the high-precision anesthetic drug injection device in Example 1;

[0021] Figure 5 It is the assembly diagram (II) of the high-precision anesthetic drug injection device in Example 1;

[0022] Figure 6 This is a schematic diagram of the structure of the main components of the high-precision anesthetic injection device in Example 1 (I);

[0023] Figure 7 for Figure 6 A partial enlarged view of the middle A part;

[0024] Figure 8 This is a schematic diagram of the structure of the main components of the high-precision anesthetic injection device in Example 1 (II);

[0025] Fig. 9 Schematic diagram of the structure of the planetary reduction assembly in Example 1 (I);

[0026] Fig.10 This is a structural schematic diagram of the planetary reduction assembly in Example 1 (II);

[0027] Numbers in the figure: 1-support seat, 2-reduction drive mechanism, 3-clamping mechanism, 4-pushing mechanism, 5-syringe, 301-first clamping member, 302-second clamping member, 303-first opening, 304-second opening, 305-empty cylinder pad, 306-guide groove, 307-telescopic frame, 308-rack, 309-gear, 310-worm spring shaft, 201-slide, 202-slide seat, 203-screw rod, 204-planetary reduction assembly, 205-drive motor, 206-gear ring, 207-sun gear, 208-planetary gear, 209-planet carrier, 210-handle, 211-trigger switch, 401-push plate, 402-movable sleeve, 403-hook, 501-empty cylinder, 502-piston handle, 503-nipple, 504-piston shaft, 505-needle, 6-flexible corrugated sleeve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] Figures 1 to 10 The first embodiment of the utility model is shown: a high-precision anesthetic drug push injection device, including a support seat 1 and a deceleration drive mechanism 2, the support seat 1 is an elongated structure, and one section of the support seat 1 is provided with a clamping mechanism 3 adapted to the empty cylinder 501 of the syringe 5 as a fixed section, and the other section of the support seat 1 is provided with a pushing mechanism 4 adapted to the piston handle 502 of the syringe 5 as a pushing section; wherein: the deceleration drive mechanism 2 can drive the pushing mechanism 4 to move along the length direction of the support seat 1 to push the piston handle 502 to achieve the injection of anesthetic drugs.

[0031] See also Figures 2 to 5In a specific implementation, the clamping mechanism 3 includes a first clamping member 301 and a second clamping member 302. A first opening 303 is reserved on the first clamping member 301 for the nipple 503 of the empty cylinder 501 to pass through, and a second opening 304 is reserved on the second clamping member 302 for the piston shaft 504 of the syringe 5 to pass through, and the spacing between the first clamping member 301 and the second clamping member 302 is adjustable. Specifically, the first clamping member 301 is fixedly connected to the end of the support seat 1 as a fixed clamping member, and the second clamping member 302 is elastically connected to the support seat 1 as a movable clamping member, and an empty cylinder pad 305 is also provided between the first clamping member 301 and the second clamping member 302. Preferably, a guide groove 306 is provided in the length direction of the support seat 1, a telescopic frame 307 connected to the second clamping member 302 is provided in the guide groove 306, a rack 308 is provided in the length direction of the telescopic frame 307, a gear 309 is meshed with one side of the rack 308, and the gear 309 is connected to the support seat 1 through a worm spring shaft 310 (see Figure 6 and Figure 7 ). When installing the syringe 5, first pull the second clamping member 302 so that the clamping member moves in a direction away from the first clamping member 301. At this time, the telescopic frame 307 is extended under the restriction of the guide groove 306, and the rack 308 provided on the telescopic frame 307 drives the gear 309 to rotate clockwise, and the worm spring shaft 310 accumulates force under the rotation of the gear 309; after the syringe 5 is installed in place, release the second clamping member 302. At this time, the worm spring shaft 310 is reset to drive the gear to rotate counterclockwise, so as to shorten the telescopic frame 307 through the rack 308, so that the second clamping member 302 moves toward the first clamping member 301, and then the empty barrel 501 of the syringe 5 is clamped between the first clamping member 301 and the second clamping member 302.

[0032] like Figure 4 and Figure 8As shown, the reduction drive mechanism 2 includes a slide 201 arranged in the push section along the length direction, a sliding seat 202 and a screw 203 matched with the sliding seat 202 are arranged in the slide 201, one end of the screw 203 passes through the slide 201, and is connected to the drive motor 205 through the planetary reduction assembly 204. When the drive motor 205 is started, the torque on its output shaft can be decelerated and amplified by the planetary reduction assembly 204 and then transmitted to the screw 203, and the screw 203 rotates to drive the sliding seat 202 to move along the length direction of the slide 201. In this embodiment, the planetary reduction assembly 204 includes a housing and a gear ring 206 arranged on the inner circumferential surface of the housing, and a sun gear 207 connected to the output shaft of the drive motor 205 is also arranged at the axis of the housing, and a plurality of planetary gears 208 are also meshed between the sun gear 207 and the gear ring 206, and the plurality of planetary gears 208 are connected to the screw 203 through a planet carrier 209 (see Fig. 9 and Fig.10 The output shaft of the driving motor 205 transmits the torque to the sun gear 207 , and the sun gear 207 rotates to drive the planetary gear 208 to revolve, thereby reducing and amplifying the torque and transmitting it to the screw 203 through the planetary carrier 209 .

[0033] from Figure 4 It can be seen that the pushing mechanism 4 includes a push plate 401 erected on the sliding seat 202, and a hook 403 for hanging the piston handle 502 is connected to the push plate 401 through a movable sleeve 402. When the push plate 401 moves toward the second clamping member 302 under the action of the sliding seat 202, the piston handle 502 can be pushed to achieve anesthetic injection. If there is a need to pull the piston handle 502 to move away from the second clamping member 302 (for example, to absorb anesthetics), the hook 403 can be hung on the piston handle 502 through the movable sleeve 402, so that the piston handle 502 can be pulled by the hook 403 when the drive motor 205 moves in the reverse direction, which is more flexible to use and more comprehensive in function.

[0034] See also Figure 6 A handle 210 is provided on one side of the support base 1, and a trigger switch 211 is further provided between the handle 210 and the support base 1. The trigger switch 211 is connected to the control circuit of the drive motor 205 to control the speed and direction of the drive motor 205. In this embodiment, the synergistic effect of the handle 210 and the trigger switch 211 can facilitate the anesthesiologist to operate by hand on the one hand, and on the other hand, it is also beneficial for the anesthesiologist to accurately control the speed and direction of the drive motor 205 to improve the accuracy of anesthetic injection.

[0035] like Figures 1 to 5As shown, a flexible corrugated sleeve 6 for enclosing the needle 505 of the syringe 5 is detachably mounted at the end of the support seat 1, and the flexible corrugated sleeve 6 is made of transparent rubber. The flexible corrugated sleeve 6 can not only support the device on the patient's tissue to be anesthetized, so as to facilitate the anesthesiologist to locate the puncture position of the needle 505, but also adjust the angle of the device at will while achieving support to ensure that the needle 505 pierces the patient's tissue at a predetermined angle, which further improves the accuracy of the anesthetic injection on the one hand, and helps to reduce the patient's discomfort on the other hand. In addition, the flexible corrugated cover can also play a certain protective role to prevent the anesthetic from overflowing and contacting the patient's blood, reducing the risk of cross infection.

[0036] To sum up, under the synergistic effect of the deceleration drive mechanism 2 and the pushing mechanism 4, the original manual push injection is replaced by automatic push injection, which can not only ensure that the piston shaft 504 of the syringe 5 is pushed forward at a uniform speed to reduce the patient's discomfort and the labor intensity of the anesthesiologist, but also help the anesthesiologist to accurately control the injection dose of anesthetic drugs, thereby overcoming many problems caused by manual push injection; the clamping mechanism 3 can not only adapt to various sizes of syringes 5, but also help to achieve accurate positioning of the syringe 5 on the support seat 1, ensuring that the piston handle 502 of the syringe 5 moves axially when the push is turned on, and also reduces the risk of shaking of the needle 505 during the push injection of anesthetic drugs, which is more practical.

[0037] The utility model uses specific examples to illustrate the principle and implementation of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation and application scope. In other words, the content of this specification should not be understood as limiting the utility model.

Claims

1. A high-precision anesthetic injection device, characterized in that: It includes a support seat and a deceleration drive mechanism, the support seat is an elongated structure, and one section of the support seat is provided with a clamping mechanism adapted to the empty barrel of the syringe as a fixed section, and the other section of the support seat is provided with a pushing mechanism adapted to the piston handle of the syringe as a pushing section; wherein: the deceleration drive mechanism can drive the pushing mechanism to move along the length direction of the support seat to push the piston handle to achieve the injection of anesthetic drugs.

2. The high-precision anesthetic drug push injection device according to claim 1, characterized in that: The clamping mechanism includes a first clamping member and a second clamping member. The first clamping member is provided with a first opening for the nipple of an empty barrel to pass through, and the second clamping member is provided with a second opening for the piston shaft of a syringe to pass through. The spacing between the first clamping member and the second clamping member is adjustable.

3. The high-precision anesthetic drug push injection device according to claim 2, characterized in that: The first clamping member is fixedly connected to the end of the support seat as a fixed clamping member, and the second clamping member is elastically connected to the support seat as a movable clamping member. An empty tube pad is also arranged between the first clamping member and the second clamping member.

4. The high-precision anesthetic drug push injection device according to claim 3, characterized in that: A guide groove is provided in the length direction of the support seat, a telescopic frame connected to the second clamping member is provided in the guide groove, a rack is provided in the length direction of the telescopic frame, a gear is meshed with one side of the rack, and the gear is connected to the support seat through a worm spring shaft.

5. The high-precision anesthetic drug injection device according to any one of claims 1 to 4, characterized in that: The reduction drive mechanism includes a slide arranged in the pushing section along the length direction, a sliding seat and a screw matched with the sliding seat are arranged in the slide, one end of the screw passes through the slide and is connected to the driving motor through a planetary reduction assembly.

6. The high-precision anesthetic drug push injection device according to claim 5, characterized in that: The planetary reduction assembly includes a housing and a gear ring arranged on the inner circumferential surface of the housing. A sun gear connected to the output shaft of the drive motor is also arranged at the axis of the housing. A plurality of planetary gears are meshed between the sun gear and the gear ring. The planetary gears are connected to the screw rod through a planet carrier.

7. The high-precision anesthetic drug push injection device according to claim 6, characterized in that: The pushing mechanism comprises a pushing plate erected on the sliding seat, and a hook for hanging a piston handle is connected to the pushing plate through a movable sleeve.

8. The high-precision anesthetic drug push injection device according to claim 7, characterized in that: A handle is provided on one side of the support base, and a trigger switch is also provided between the handle and the support base. The trigger switch is connected to the control circuit of the drive motor to control the speed and direction of the drive motor.

9. The high-precision anesthetic drug push injection device according to claim 1 or 8, characterized in that: A flexible corrugated sleeve for enclosing a syringe needle is detachably mounted on the end of the support seat, and the flexible corrugated sleeve is made of transparent rubber.

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