Local anesthetic spraying device

Abstract

The invention relates to the technical field of medical instruments, in particular to a local anesthetic spraying device which comprises a spraying body, a scale injection cylinder is fixedly connected into the spraying body, a piston mechanism is arranged in the scale injection cylinder and comprises a first piston arranged in the scale injection cylinder, and a fixing mechanism is arranged outside the spraying body. The fixing mechanism comprises a telescopic rod arranged outside the spraying body, if liquid in the scale syringe is too much, the second piston handle is held by hand to pull outwards till anesthetic liquid in the scale syringe reaches the expected liquid level scale, the device is leveled, the spraying head is aligned to the portion, needing anesthesia, of a patient, the first piston handle is pushed, and the anesthetic liquid in the scale syringe is sprayed out. The anesthetic liquid in the scale syringe passes through the liquid outlet column body and then is sprayed outwards through the spray head, the spray head rotary table is rotated, the spray heads with different functions and the liquid outlet column body are located on the same straight line under the rotation effect, and the spray head is aligned with the part, needing anesthesia operation, of a patient for anesthesia.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a local anesthetic spraying device. Background Art

[0002] Anesthesia is the use of drugs or other methods to temporarily make the patient lose all or part of the sensation in order to achieve the purpose of painlessness. Anesthesia is a variety of methods used to eliminate pain, ensure patient safety, and create good surgical conditions during surgery or diagnostic examinations. Clinical anesthesia is the main part of modern anesthesia, involving all treatments before and after anesthesia and during the surgical period. Preparations before anesthesia should be done well, such as understanding the condition and selecting the most appropriate anesthesia and drugs in combination with the surgery. In order to reduce the patient's mental tension before the operation and ensure the smooth progress of anesthesia and surgery, sedatives, analgesics, anticholinergics and other pre-anesthetic drugs can be appropriately given. Fasting is required before anesthesia to prevent complications such as vomiting and aspiration during anesthesia and surgery. After the patient is received in the operating room, anesthesia is performed according to the operating requirements. During anesthesia and surgery, the patient's changes should be closely observed and necessary treatment should be performed. After anesthesia, the patient is safely transported back to the ward or anesthesia recovery room and continues to be monitored and treated until the patient recovers normal physiological functions. Commonly used drugs for surface anesthesia are tetracaine and lidocaine. This type of anesthetic has strong penetration, fast onset and long duration. When implementing surface anesthesia, since the spraying area of ​​local anesthetic is small, it is often possible to achieve better anesthetic effect while using a smaller dosage, ensuring the smooth implementation of superficial mucosal surgery, invasive examinations and operations, etc.

[0003] In the prior art, it is currently impossible to accurately quantify the dosage of local anesthetics during the spraying process, and the spraying amount cannot be controlled. Once the dosage is too large, it is easy to cause toxic side effects of excessive dosage of local anesthetics or cause tissue damage to the anesthetized part. In addition, different parts of the patient require different states of the sprayed anesthetic liquid, and it is impossible to achieve both drip-in and atomized spraying. Therefore, a local anesthetic spraying device is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the dosage of local anesthetics cannot be accurately quantified and the spraying amount cannot be controlled. Once the dosage is too large, it is easy to cause toxic side effects of excessive dosage of local anesthetics or tissue damage to the anesthetized part. In addition, different parts of the patient need to have different states of the sprayed anesthetic liquid, such as it is impossible to achieve both drip-in and atomized spraying. Therefore, a local anesthetic spraying device is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A local anesthetic spray device comprises a spray body, wherein a graduated syringe is fixedly connected inside the spray body, a piston mechanism is arranged inside the graduated syringe, the piston mechanism comprises a first piston arranged inside the graduated syringe, a piston cavity is provided inside the first piston, a second piston is slidably connected inside the piston cavity, a first piston pull rod is fixedly connected outside the second piston, a second piston handle is fixedly connected outside the first piston, a third through hole is provided outside the first piston, a second piston pull rod is fixedly connected outside the first piston, the first piston pull rod is fixedly connected outside the second piston handle, a fourth through hole is provided outside the graduated syringe, and a fifth through hole is provided outside the spray body;

[0007] The outside of the spray body is fixedly connected to a rotating cylinder, the outside of the rotating cylinder is rotatably connected to a nozzle turntable, the outside of the nozzle turntable is fixedly connected to a nozzle, the outside of the nozzle turntable is provided with a rotating bead, the outside of the spray body is provided with a telescopic slot, the outside of the spray body is provided with a fixing mechanism, and the fixing mechanism includes a telescopic rod provided outside the spray body.

[0008] Among them, the piston mechanism includes a first piston, a second piston, a first piston pull rod, a second piston pull rod, a first piston handle, a second piston handle, a piston cavity, a second through hole, a third through hole, a fourth through hole, a fifth through hole, and a sixth through hole; hold the first piston handle and pull it to reserve sufficient space for the anesthetic liquid that will flow into the inside of the graduated syringe barrel, hold the second piston handle and push it to reserve sufficient space for the precise spraying of the anesthetic liquid, hold the device vertically, push the first piston handle to expel excess air inside the graduated syringe barrel, observe the scale through the visual slot, if there is too much liquid, hold the second piston handle and pull it to make the second piston slide inside the piston cavity until the anesthetic liquid inside the graduated syringe barrel reaches the expected liquid level scale.

[0009] The above technical solution further includes:

[0010] The second piston rod is slidably connected inside the fourth through hole, the second piston rod is slidably connected inside the fifth through hole, and the first piston rod is slidably connected inside the third through hole.

[0011] The outside of the graduated injection cylinder is fixedly connected with a liquid outlet column, the inside of the graduated injection cylinder is slidably connected with a first piston, and the outside of the first piston is provided with a second through hole.

[0012] A first through hole is provided inside the spray body, and a first through hole is provided inside the graduated injection cylinder.

[0013] The outside of the spraying body is slidably connected with a telescopic rod, the outside of the spraying body is provided with a fixing slot, and the outside of the telescopic rod is provided with a fixing bead.

[0014] A sixth through hole is formed on the outside of the first piston handle, and a first piston pull rod is slidably connected inside the sixth through hole.

[0015] A visual groove is provided on the outside of the spray body, a support rod is fixedly connected to the outside of the telescopic rod, a gasket is fixedly connected to the outside of the support rod, a rotating shaft is rotatably connected to the outside of the support rod, a push-pull block is fixedly connected to the outside of the rotating shaft, a stretching bead is arranged on the outside of the push-pull block, a motor is fixedly connected to the inside of the spray body, a liquid tank is threadedly connected to the inside of the spray body, a guide pipe is fixedly connected to the outside of the motor, and a first through hole is provided in the guide pipe.

[0016] Among them, the fixing mechanism includes a push-pull block, a rotating shaft, a support rod, a telescopic rod, a gasket, a rotating bead, a fixed bead, and a stretching bead; pushing the push-pull block allows the stretching bead to slide outward on the fixed slot until it is fully fitted, so that the support rod extends outward, and stretching the telescopic rod allows the support rod to extend to the left and right sides, and the gasket is placed near the part of the patient that requires anesthesia, so as to facilitate the anesthesia fixation operation.

[0017] A push-pull block is slidably connected to the outside of the spraying body, and a rotating slot is provided on the outside of the spraying body.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, when in use, hold the first piston handle and pull it outward to reserve sufficient space for the anesthetic liquid, hold the second piston handle and push it inward to reserve sufficient space for accurately spraying the anesthetic liquid, start the motor, fill the calibrated syringe with anesthetic liquid, vertically hold the device, push the first piston handle, discharge the excess air inside the calibrated syringe, observe the scale on the calibrated syringe, if there is too much liquid, hold the second piston handle and pull it outward until the expected liquid level is reached, horizontally hold the device, push the first piston handle, so that the anesthetic liquid passes through the liquid outlet column, and then sprays outward through the nozzle to achieve anesthesia for the patient.

[0020] 2. In the present invention, when in use, when the expected liquid level scale has not been reached and there is anesthetic liquid inside the piston cavity, the first piston handle is held and pulled outward to reserve sufficient space for the anesthetic liquid that will flow into the graduated syringe barrel, and the second piston handle is held and pushed inward to allow the anesthetic liquid to flow into the graduated syringe barrel. The device is vertically pushed, and the first piston handle is pushed inward to expel excess air. When the anesthetic liquid inside the graduated syringe barrel reaches the expected liquid level scale, the patient can be anesthetized, thereby achieving precise control of the amount of medicine used when anesthetizing the patient.

[0021] 3. In the present invention, when in use, the hand-held device is used to push the push-pull block so that the stretching bead slides outward on the fixed card slot until it is fully fitted, the support rod extends outward, and the telescopic rod is pushed so that the fixed bead slides outward on the telescopic card slot until it is fully fitted, and the telescopic rod is stretched so that the support rod extends to the left and right sides, and the push-pull block and the telescopic rod are adjusted until the device is stable and can perform anesthesia on the part requiring anesthesia, and then the nozzle turntable is rotated to align the nozzles with different functions with the liquid outlet column under the rotation, and the nozzle is aimed at the part of the patient that requires anesthesia for anesthesia. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a local anesthetic spraying device proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the first part of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the second part of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the third part of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the fourth part of the present invention;

[0027] Figure 6 for Figure 1 The enlarged schematic diagram of part A in the middle;

[0028] Figure 7 for Figure 1 The enlarged schematic diagram of part B in the middle;

[0029] Figure 8 for Figure 5 The enlarged schematic diagram of part C in the middle;

[0030] Fig. 9 for Figure 5 Enlarged schematic diagram of part D in the middle.

[0031] In the figure: 1. spraying body; 2. liquid tank; 3. guide tube; 4. motor; 5. first through hole; 6. graduated syringe; 7. first piston; 8. second piston; 9. piston cavity; 10. first piston pull rod; 11. second piston pull rod; 12. first piston handle; 13. second piston handle; 14. second through hole; 15. support rod; 16. gasket; 17. telescopic rod; 18. nozzle turntable; 19. rotating cylinder; 20. nozzle; 21. third through hole; 22. fourth through hole; 23. fifth through hole; 24. fixed slot; 25. push-pull block; 26. rotating shaft; 27. sixth through hole; 28. telescopic slot; 29. ​​rotating slot; 30. rotating bead; 31. fixed bead; 32. stretching bead; 33. visual slot; 34. liquid outlet column. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] like Figure 1-9 As shown, a local anesthetic spray device proposed by the present invention comprises a spray body 1, a graduated syringe 6 is fixedly connected inside the spray body 1, a piston mechanism is arranged inside the graduated syringe 6, the piston mechanism comprises a first piston 7 arranged inside the graduated syringe 6, a piston cavity 9 is opened inside the first piston 7, a second piston 8 is slidably connected inside the piston cavity 9, a first piston pull rod 10 is fixedly connected outside the second piston 8, a second piston handle 13 is fixedly connected outside the first piston pull rod 10, a third through hole 21 is opened outside the first piston 7, a second piston pull rod 11 is fixedly connected outside the first piston 7, a first piston handle 12 is fixedly connected outside the second piston pull rod 11, a fourth through hole 22 is opened outside the graduated syringe 6, and a fifth through hole 23 is opened outside the spray body 1;

[0035] A rotating cylinder 19 is fixedly connected to the outside of the spray body 1, a nozzle turntable 18 is rotatably connected to the outside of the rotating cylinder 19, a nozzle 20 is fixedly connected to the outside of the nozzle turntable 18, a rotating bead 30 is arranged outside the nozzle turntable 18, a telescopic slot 28 is opened outside the spray body 1, and a fixing mechanism is arranged outside the spray body 1, and the fixing mechanism includes a telescopic rod 17 arranged outside the spray body 1.

[0036] The working principle of the local anesthetic spraying device proposed by the present invention is that the liquid tank 2 is rotated counterclockwise until it is separated from the spraying body 1, and the anesthetic liquid is injected into the liquid tank 2. After the anesthetic liquid is injected, the liquid tank 2 is rotated clockwise until it is tightly connected with the spraying body 1, and the first piston handle 12 is pulled outward by hand, so that the second piston pull rod 11 moves outward inside the fourth through hole 22 and the fifth through hole 23, so that the first piston 7 slides inside the graduated syringe 6, and a reserve is reserved for the anesthetic liquid that will flow into the graduated syringe 6. The second piston handle 13 is held and pushed inward, so that the first piston pull rod 10 moves inward inside the sixth through hole 27 and the third through hole 21, so that the second piston 8 slides inside the piston cavity 9 until the bottom of the piston cavity 9, and sufficient space is reserved for accurately spraying the anesthetic liquid. The motor 4 is started, so that the anesthetic liquid in the liquid tank 2 passes through the first through hole 5 inside the guide tube 3 through the first through hole 5 inside the spray body 1, and then passes through the first through hole 5 inside the scale syringe 6, so that the scale syringe 6 is filled with anesthetic liquid. The anesthetic liquid is turned off, the motor 4 is turned vertically, and the first piston handle 12 is pushed inward to discharge the excess air in the graduated syringe 6. The scale on the graduated syringe 6 is observed through the visual slot 33. If there is too much liquid in the graduated syringe 6, the second piston handle 13 is held and pulled outward, so that the first piston pull rod 10 moves outward inside the sixth through hole 27 and the third through hole 21, so that the second piston 8 slides inside the piston cavity 9 until the anesthetic liquid in the graduated syringe 6 reaches the expected liquid level scale, and the pulling of the second piston handle 13 is stopped. The second piston handle 13 is used to level the device, and the nozzle 20 is aimed at the part of the patient that needs anesthesia. The first piston handle 12 is pushed, so that the second piston rod 11 moves inward inside the fourth through hole 22 and the fifth through hole 23, so that the first piston 7 slides inside the graduated syringe 6, so that the anesthetic liquid inside the graduated syringe 6 is pushed by the first piston handle 12, resulting in an increase in the pressure inside the graduated syringe 6, so that the anesthetic liquid inside the graduated syringe 6 passes through the liquid outlet column 34 and is then sprayed outward through the nozzle 20 to achieve anesthesia for the patient;

[0037] If the liquid in the graduated syringe 6 is too little and does not reach the expected liquid level scale and there is no anesthetic liquid in the piston cavity 9, the motor 4 is started to allow the anesthetic liquid in the liquid tank 2 to pass through the first through hole 5 in the guide tube 3, the first through hole 5 in the spray body 1, and then through the first through hole 5 in the graduated syringe 6, so that the anesthetic liquid in the graduated syringe 6 reaches the expected liquid level scale, and the patient can be anesthetized; when the expected liquid level scale is not reached and there is anesthetic liquid in the piston cavity 9, the motor 4 can be stopped, and the first piston handle 12 can be held and pulled outward, so that the first piston 7 is in the graduated syringe 6. The first piston handle 12 is pushed inward to discharge the excess air in the graduated syringe 6. The scale on the graduated syringe 6 is observed through the visual slot 33. When the anesthetic liquid in the graduated syringe 6 reaches the expected liquid level, the patient can be anesthetized, thereby achieving precise control of the amount of medication used during anesthesia.

[0038] Embodiment 2

[0039] like Figure 1-9 As shown, based on the first embodiment, the fourth through hole 22 is slidably connected to the second piston rod 11, the fifth through hole 23 is slidably connected to the second piston rod 11, the third through hole 21 is slidably connected to the first piston rod 10, the scale injection cylinder 6 is fixedly connected to the outside of the liquid discharge column 34, the scale injection cylinder 6 is slidably connected to the first piston 7, the first piston 7 is provided with a second through hole 14 on the outside, the spray body 1 is provided with a first through hole 5, the scale injection cylinder 6 is provided with a first through hole 5, the spray body 1 is slidably connected to the outside of the telescopic rod 17, the spray body 1 is provided with a fixed card slot 24 on the outside, the telescopic rod 17 is provided with a fixed bead 31 on the outside, and the first piston handle 12 is provided with a first through hole 5 on the inside. There are six through holes 27, the first piston pull rod 10 is slidably connected inside the sixth through hole 27, a visible groove 33 is provided on the outside of the spray body 1, the support rod 15 is fixedly connected to the outside of the telescopic rod 17, the gasket 16 is fixedly connected to the outside of the support rod 15, the support rod 15 is rotatably connected to the outside of the rotating shaft 26, the push-pull block 25 is fixedly connected to the outside of the rotating shaft 26, and a stretching bead 32 is arranged on the outside of the push-pull block 25, the motor 4 is fixedly connected to the inside of the spray body 1, the liquid tank 2 is threadedly connected to the inside of the spray body 1, the guide pipe 3 is fixedly connected to the outside of the motor 4, the guide pipe 3 is provided with a first through hole 5, the push-pull block 25 is slidably connected to the outside of the spray body 1, and a rotating slot 29 is provided on the outside of the spray body 1.

[0040] The working principle of the local anesthetic spraying device proposed by the present invention is that the handheld device is used to push the push-pull block 25 so that the stretching bead 32 slides outward on the fixed card slot 24 until it is fully fitted, so that the support rod 15 extends outward, and the telescopic rod 17 is pushed so that the fixed bead 31 slides outward on the telescopic card slot 28 until it is fully fitted, and the telescopic rod 17 is stretched so that the support rod 15 is extended to the left and right sides, and the gasket 16 is placed near the part of the patient that needs anesthesia, and the push-pull block 25 and the telescopic rod 17 are adjusted until the device is stable and can perform anesthesia on the part that needs anesthesia, and the nozzle turntable 18 is rotated so that the rotating bead 30 rotates on the rotating card slot 29 until it is fully fitted, and the nozzles 20 with different functions are aligned with the liquid outlet column 34 under the rotation, and the nozzles 20 are aimed at the part of the patient that needs anesthesia to perform anesthesia;

[0041] When the device is used, the handheld device is pulled and the push-pull block 25 is pulled to make the stretching bead 32 slide inward on the fixed card slot 24 until it is fully fitted, so that the support rod 15 is retracted inward, and the telescopic rod 17 is pulled to make the fixed bead 31 slide inward on the telescopic card slot 28 until it is fully fitted, and the telescopic rod 17 is retracted to make the support rod 15 retract to the left and right sides until it is fully fitted to the spray body 1, thereby meeting the needs of different nozzles in different areas and the needs of fixing the device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A local anesthetic spraying device, comprising a spraying body (1), characterized in that: The spray body (1) is fixedly connected to a graduated syringe (6) inside, and a piston mechanism is arranged inside the graduated syringe (6). The piston mechanism comprises a first piston (7) arranged inside the graduated syringe (6), a piston cavity (9) is provided inside the first piston (7), a second piston (8) is slidably connected inside the piston cavity (9), a first piston pull rod (10) is fixedly connected to the outside of the second piston (8), a second piston handle (13) is fixedly connected to the outside of the first piston pull rod (10), a third through hole (21) is provided outside the first piston (7), a second piston pull rod (11) is fixedly connected to the outside of the first piston (7), and the first piston handle (12) is fixedly connected to the outside of the second piston pull rod (11), a fourth through hole (22) is provided outside the graduated syringe (6), and a fifth through hole (23) is provided outside the spray body (1); The spray body (1) is fixedly connected to a rotating cylinder (19) on the outside, the rotating cylinder (19) is rotatably connected to a nozzle turntable (18) on the outside, the nozzle turntable (18) is fixedly connected to a nozzle (20) on the outside, a rotating bead (30) is arranged on the outside of the nozzle turntable (18), a telescopic slot (28) is provided on the outside of the spray body (1), and a fixing mechanism is arranged on the outside of the spray body (1), and the fixing mechanism includes a telescopic rod (17) arranged on the outside of the spray body (1).

2. A local anesthetic spraying device according to claim 1, characterized in that: The fourth through hole (22) is slidably connected to the inside of the second piston pull rod (11), the fifth through hole (23) is slidably connected to the inside of the second piston pull rod (11), and the third through hole (21) is slidably connected to the inside of the first piston pull rod (10).

3. A local anesthetic spraying device according to claim 1, characterized in that: The graduated injection cylinder (6) is fixedly connected to a liquid outlet column (34) on the outside, and the graduated injection cylinder (6) is slidably connected to a first piston (7) on the inside. A second through hole (14) is formed on the outside of the first piston (7).

4. A local anesthetic spraying device according to claim 1, characterized in that: The spray body (1) has a first through hole (5) formed inside, and the graduated injection cylinder (6) has a first through hole (5) formed inside.

5. A local anesthetic spraying device according to claim 1, characterized in that: The outside of the spraying body (1) is slidably connected to a telescopic rod (17), the outside of the spraying body (1) is provided with a fixing slot (24), and the outside of the telescopic rod (17) is provided with a fixing bead (31).

6. A local anesthetic spraying device according to claim 1, characterized in that: A sixth through hole (27) is formed on the outside of the first piston handle (12), and a first piston pull rod (10) is slidably connected inside the sixth through hole (27).

7. A local anesthetic spraying device according to claim 1, characterized in that: The spray body (1) is provided with a visual slot (33) on the outside, the telescopic rod (17) is fixedly connected to the outside of the support rod (15), the support rod (15) is fixedly connected to the outside of the gasket (16), the support rod (15) is rotatably connected to the outside of the rotating shaft (26), the rotating shaft (26) is fixedly connected to the outside of the push-pull block (25), the push-pull block (25) is provided with a stretching bead (32) on the outside, the spray body (1) is fixedly connected to the inside of the motor (4), the spray body (1) is threadedly connected to the inside of the liquid tank (2), the motor (4) is fixedly connected to the outside of the guide tube (3), and the guide tube (3) is provided with a first through hole (5) on the inside.

8. A local anesthetic spraying device according to claim 1, characterized in that: The outside of the spraying body (1) is slidably connected to a push-pull block (25), and the outside of the spraying body (1) is provided with a rotation slot (29).

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