Quantitative throat anesthesia sprayer for anesthesiology department

Abstract

The utility model belongs to the field of anesthetic sprayers, and particularly relates to a throat anesthesia quantitative sprayer for the anesthesiology department. The device comprises a horizontally arranged injection cylinder, one end of the injection cylinder is detachably connected with a hose communicated with the injection cylinder, the other end of the injection cylinder is detachably sleeved with an installation cover, the unconnected end of the hose is provided with a spray head communicated with the hose, and a piston capable of freely sliding is installed in the injection cylinder in a penetrating mode. A plurality of first springs are fixed between the piston and the mounting cover, a pull rod is horizontally fixed to the piston, the unfixed end of the pull rod independently penetrates through the mounting cover, and a quantifying assembly used for quantifying the anesthetic injection dosage is arranged at the end, penetrating through the mounting cover, of the pull rod; a locking assembly used for locking the moved pull rod is arranged between the pull rod and the mounting cover, and a handle is fixed to the mounting cover. In the operation process, the anesthetic does not need to be manually extruded and injected, so that the operation process is more convenient and simpler.

Description

Technical Field

[0001] The utility model belongs to the field of anesthesia sprayers, in particular to a throat anesthesia quantitative sprayer used in anesthesia departments. Background Art

[0002] The Department of Anesthesiology is a very important department in the hospital. It is mainly responsible for the anesthesia, monitoring and resuscitation of patients during medical procedures such as surgery, pain treatment or intensive care. It contains multidisciplinary knowledge and a wide range. It not only meets the requirements of surgery, but also participates in the rescue work of various departments, gynecological painless delivery, painless abortion, etc.

[0003] For example, the utility model patent with application number CN202322633590.9 discloses a quantitative sprayer for anesthesia in the throat area, which includes a shell, the bottom end of which is connected to a hose, the bottom end of which is connected to an atomizing nozzle, the inner wall of the shell is slidably connected to a piston, and the top end of the piston is provided with a quantitative mechanism; the quantitative mechanism includes a push rod, the top end of the piston is provided with a push rod, the outer wall of the push rod is provided with an external thread, the outer wall of the push rod is threadedly connected to a threaded sleeve, the outer wall of the push rod is provided with a scale, and the top end of the push rod is provided with a pressure plate; when injecting a specific amount of anesthetic, the threaded sleeve is rotated on the outer wall of the push rod to move up and down, so that the screw When the bottom end of the threaded sleeve moves to the level of the scale line indicating the amount to be injected, the pressure plate can be pushed to cause the piston to squeeze the anesthetic for injection. When a specific amount is injected, the bottom end of the threaded sleeve will abut against the top end of the top cover. At this time, the push rod can no longer be pushed downward, i.e., the injection is stopped, thereby avoiding the situation where excessive injection occurs due to observing the scale line while injecting, and improving the injection quantitative accuracy. The existing anesthesia metered dose sprayer requires manual squeezing to inject the anesthetic. By manually pushing the push rod, the piston squeezes the anesthetic in the shell and sprays it out. Medical staff need to hold the shell with one hand and push the pressure plate with the other hand when injecting the anesthetic, which is inconvenient to operate. Utility Model Content

[0004] The purpose of the utility model is to provide a quantitative sprayer for throat anesthesia used in anesthesia department, which does not require manual squeezing and injecting of anesthetics, making the operation process more convenient and simple.

[0005] The described throat anesthesia metered sprayer for anesthesia department includes a horizontally arranged syringe, one end of the syringe is detachably connected to a hose communicating with it, the other end of the syringe is detachably covered with a mounting cover, the unconnected end of the hose is mounted with a nozzle communicating with it, a freely slidable piston is passed through the syringe, a plurality of first springs are fixed between the piston and the mounting cover, a pull rod is horizontally fixed on the piston, the unfixed end of the pull rod independently passes through the mounting cover, a quantitative component for quantitatively measuring the injection dose of the anesthetic is provided on the end of the pull rod passing through the mounting cover, a locking component for locking the pull rod after movement is provided between the pull rod and the mounting cover, and a handle is fixed on the mounting cover.

[0006] Furthermore, the locking assembly includes two mounting plates, which are vertically fixed on the inner side walls of the mounting cover in a front-to-back parallel shape; a rocker arm that can swing up and down is hinged between the two mounting plates, and the rocker arm is located below the pull rod. A number of teeth are fixed on the rocker arm, and a number of slots are evenly opened on the side walls of the pull rod along its length. After the rocker arm swings to horizontal, all the teeth will be engaged in the slots aligned with it; a pressure rod that can swing left and right and pushes the rocker arm to swing up and down through the top is hinged between the two mounting plates, and a through slot for the lower end of the pressure rod to pass through is opened on the mounting cover, and a second spring is fixed between the inner cover top of the mounting cover and the rod body of the lower half of the pressure rod.

[0007] Furthermore, the lower half of the pressure rod has an arc-shaped structure.

[0008] Furthermore, the quantitative assembly includes a positioning sleeve, which is independently mounted on one end of the pull rod passing through the mounting cover. The side wall of the pull rod is provided with dosage scale lines along its length, and the side wall of the positioning sleeve is provided with screws for locking the positioning sleeve after movement.

[0009] Furthermore, anti-slip grooves for increasing friction are provided on the outer wall of the positioning sleeve.

[0010] Furthermore, a plurality of evenly distributed mounting grooves are provided on the inner cover wall of the mounting cover along its circumferential direction, and a plurality of positioning blocks for independently engaging in corresponding mounting grooves are fixed on the side wall of the injection barrel.

[0011] Furthermore, the handle is provided with a plurality of anti-slip grooves for increasing friction.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Before use, store a sufficient dose of anesthetic in the syringe, lock the pull rod through the locking component, and set the required injection dose through the quantitative component. After the dose is set, the medical staff can hold the handle with their hands and unlock the lock assembly on the pull rod. The piston will move to the left under the push of the first spring restoring force to squeeze the anesthetic, so that the anesthetic is transmitted to the nozzle through the hose, and the anesthetic is sprayed on the affected area in the form of mist through the nozzle. There is no need to manually squeeze and inject the anesthetic, making the operation process more convenient and simple; when the required dose is injected, the quantitative component will prevent the pull rod from moving further, thereby completing the injection of the required specific dose of anesthetic and avoiding errors in the dose of anesthetic injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 for Figure 1 A magnified schematic diagram of area a in the middle;

[0016] Figure 3 for Figure 1 Cross-sectional view at AA in the middle;

[0017] Figure 4 It is a three-dimensional diagram of the utility model;

[0018] Figure 5 It is an exploded view of the utility model;

[0019] Figure 6 A schematic diagram of the internal structure of the installation cover;

[0020] The names of the components in the figure are: 1, nozzle 2, hose 3, syringe 4, piston 5, pull rod 6, positioning block 7, mounting cover 8, positioning sleeve 9, handle 10, pressure rod 11, latch 12, rocker arm 13, mounting plate 14, second spring 15, first spring. DETAILED DESCRIPTION

[0021] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings, but this does not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0022] Example 1

[0023] The present embodiment of the present invention is a kind of anesthesia department throat anesthesia quantitative sprayer, such as Figure 1 、 Figure 3 and Figure 6As shown, it includes a horizontally arranged syringe 3, one end of which is detachably connected to a hose 2 communicating therewith. The syringe 3 is a syringe in a syringe and is an existing product. The end of the syringe is provided with a connector, and one end of the hose 2 is sleeved on the connector. The hose 2 and the connector form an interference fit, so that the hose 2 can be detachably connected to one end of the syringe 3, making it convenient for medical staff to replace the hose 2. The hose 2 is made of soft medical-grade silicone or PVC to avoid unnecessary damage to the patient's throat.

[0024] The other end of the syringe 3 is detachably sleeved with a mounting cover 7, and a plurality of mounting grooves are evenly fixed on the inner cover wall of the mounting cover 7 along its circumferential direction. A plurality of positioning blocks 6 for independently engaging in the corresponding mounting grooves are fixed on the side wall of the syringe 3. In this embodiment, the number of positioning blocks 6 and mounting grooves is two respectively. When the mounting cover 7 is sleeved on one end of the syringe 3, the positioning block 6 will engage in the corresponding positioning groove. The positioning block 6 cooperates with the positioning groove to position the mounting cover 7 to prevent the mounting cover 7 from rotating during use. A threaded hole communicating with the inside and outside is provided on the side wall of the mounting cover 7, and a screw threadedly matched therewith is installed inside the threaded hole. By turning the screw, the threaded end of the screw is pressed against the syringe 3, thereby fixing the mounting cover 7 sleeved on one end of the syringe 3, making it convenient for medical personnel to disassemble the mounting cover 7 to repair, replace or clean individual components;

[0025] The unconnected end of the hose 2 is connected to a nozzle 1, which is used to spray the anesthetic in a mist. A protective cover made of medical-grade rubber, silicone, or latex can be placed on the nozzle 1 to cover the nozzle 1, but the water outlet on the nozzle 1 needs to be exposed to prevent the nozzle 1 from causing damage to the patient's throat.

[0026] A freely slidable piston 4 is installed inside the syringe 3. The piston 4 is made of materials such as medical rubber and medical silicone. The piston 4 forms an interference fit with the inner wall of the syringe 3, thereby preventing the anesthetic from leaking from the gap between the piston 4 and the inner wall of the syringe 3. The space between the piston 4 and the connector at the end of the syringe is used to store the anesthetic. When the piston 4 moves toward the end of the syringe 3, it squeezes the anesthetic. The squeezed anesthetic is then transferred to the nozzle 1 through the hose 2, and the anesthetic is sprayed out in the form of a mist through the nozzle 1.

[0027] A plurality of first springs 15 are fixed between the piston 4 and the mounting cover 7. In this embodiment, two first springs 15 are used. Of course, other numbers of first springs 15 can be used according to the required usage scenario. The two first springs 15 are aligned in parallel front and back. One end of the two first springs 15 is fixed on the piston 4, and the other end is fixed on the inner cover top of the mounting cover 7. When the syringe 3 needs to inhale anesthetic, the piston 4 is pushed to the right, so that the anesthetic is sucked into the syringe 3 from the connector, and the piston 4 squeezes all the first springs 15 when moving to the right, compressing all the first springs 15. When the external pressure is removed, the piston 4 moves to the left under the push of the restoring force of all the first springs 15 to squeeze the anesthetic, so that the anesthetic is transmitted to the nozzle 1 through the hose 2, and the anesthetic is sprayed out in the form of mist through the nozzle 1. There is no need to manually squeeze and inject the anesthetic, making the operation process more convenient and simple.

[0028] A pull rod 5 is horizontally fixed on the piston 4, and the unfixed end of the pull rod 5 independently passes through the mounting cover 7. The cross section of the pull rod 5 is a rectangular structure, and the mounting cover 7 is provided with a rectangular through-hole. The unfixed end of the pull rod 5 passes through the through-hole and is located outside the syringe 3. Medical personnel can pull the end of the pull rod 5 outside the syringe 3 to drive the piston 4 to move to the right, and the pull rod 5 with a rectangular cross-section can prevent the pull rod 5 from rotating during the movement by cooperating with the rectangular through-hole. Of course, the pull rod 5 can also adopt an elliptical or triangular cross-section structure.

[0029] A plurality of evenly distributed mounting grooves are provided on the inner cover wall of the mounting cover 7 along its circumferential direction, and a plurality of positioning blocks 6 are fixed on the side wall of the injection barrel 3, which are respectively used to independently engage in the corresponding mounting grooves. In this embodiment, two mounting grooves and two positioning blocks 6 are used. The two positioning blocks 6 are evenly distributed on the side wall of the right end of the injection barrel 3 along the circumferential direction of the injection barrel 3, and the two mounting grooves are evenly distributed on the inner side wall of the cover opening along the circumferential direction of the mounting cover 7. When the mounting cover 7 is sleeved on the right end of the injection barrel 3, the two positioning blocks 6 are respectively engaged in the two mounting grooves, thereby positioning the mounting cover 7 to prevent the mounting cover 7 from rotating during use; of course, the number of mounting grooves and positioning blocks 6 can also be used as required according to actual usage;

[0030] To further explain, Figure 1 、 Figure 3 and Figure 4As shown, the present embodiment preferably includes a positioning sleeve 8, which is independently sleeved on one end of the pull rod 5 passing through the mounting cover 7. The side wall of the pull rod 5 is provided with dosage scale lines along its length direction, and the side wall of the positioning sleeve 8 is provided with screws for locking the positioning sleeve 8 after movement; when a specific dose of anesthetic needs to be injected, the positioning sleeve 8 is slid along the pull rod 5, and the left end of the positioning sleeve 8 is flush with the dosage scale line of the required injection dose, and the position of the positioning sleeve 8 is locked by rotating the screw, and then the piston 4 is pushed to move by the two first springs 15, and the piston 4 drives the pull rod 5 to move for injection. When the specific dose is injected, the left end of the positioning sleeve 8 will fit with the mounting cover 7, preventing the pull rod 5 from continuing to move, thereby completing the injection of the required specific dose of anesthetic and avoiding anesthesia. There is an error in the dosage of the anesthetic injection; this solution as a whole constitutes a quantitative component for quantitatively measuring the injection dosage of the anesthetic; of course, the quantitative component can also use bolts and nuts, and a front-to-back connecting groove is opened along the length direction of the pull rod 5, the bolt is installed in the groove, and the nut is installed on the threaded end of the bolt. The side wall of the pull rod 5 is opened along its length direction. A dosage scale line is opened. When a specific dose of anesthetic needs to be injected, the bolt is slid along the pull rod 5 and the bolt is flush with the dosage scale line of the required injection dose. When the nut is turned, the nut and the bolt clamp the pull rod 5 in the middle, thereby locking the position of the bolt, and the pull rod 5 can be pushed for injection. When the specific dose is injected, the bolt will fit with the mounting cover 7 to prevent the pull rod 5 from continuing to move, thereby completing the required specific dose of anesthetic injection.

[0031] The outer wall of the positioning sleeve 8 is provided with anti-slip grooves for increasing friction. When medical staff move the positioning sleeve 8 by hand, the anti-slip grooves can increase the friction between the skin and the positioning sleeve 8, thereby preventing the fingers from slipping.

[0032] To further explain, Figure 1 、 Figure 2 and Figure 6As shown, in this embodiment, it is preferred to include two mounting plates 13, which are vertically fixed on the inner side wall of the mounting cover 7 in a front-to-back parallel shape, and a swing arm 12 that can swing up and down is hinged between the two mounting plates 13, and one end of the swing arm 12 is hinged between the two mounting plates 13 through a pivot, and the pivot is horizontally fixed between the two mounting plates 13. A through hole for the pivot to pass through is provided on one end of the swing arm 12, so that the swing arm 12 can swing up and down with the pivot as the center of the circle; of course, one end of the swing arm 12 can also be hinged with a bearing; the swing arm 12 is located below the pull rod 5, and a number of latch teeth 11 are fixed on the swing arm 12, and a number of latch grooves are evenly provided on the side wall of the pull rod 5 along its length direction. After the swing arm 12 swings to the horizontal, all the latch teeth 11 will engage with The top of the pressure rod 10 is in contact with the swing rod 12, and the upper end of the pressure rod 10 pushes the swing rod 12 to swing up and down during the swinging process; a through slot for the lower end of the pressure rod 10 to pass through is provided on the mounting cover 7, and a second spring 14 is fixed between the inner cover top of the mounting cover 7 and the rod body of the lower half of the pressure rod 10; the pressure rod 10 is vertical in the initial state, and the top of the pressure rod 10 pushes the swing rod 12 to be horizontal. In use, when the medical staff presses the pressure rod to the right When the pull rod 5 needs to be locked again, the pressure on the pressure rod 10 is released, and the lower end of the pressure rod 10 swings to the left to a vertical position under the push of the restoring force of the second spring 14, and the lower end of the pressure rod 10 is fitted in the passage. On the left side wall of the groove, the lower end of the pressure rod 10 is blocked by the left side wall of the through groove to prevent the lower end of the pressure rod 10 from swinging excessively to the left. At the same time, the upper end of the pressure rod 10 will swing to the right. The upper end of the pressure rod 10 will push the rocker rod 12 upward during the swinging process, so that the rocker rod 12 returns to a horizontal state, and each tooth 11 on the rocker rod 12 will be engaged in the groove aligned with it, thereby locking the pull rod 5; this scheme as a whole constitutes a locking assembly for locking the moved pull rod 5; of course, the locking assembly can also use screws, and a threaded hole that is connected from the inside to the outside and is threadedly matched with the screw is opened on the side wall of the mounting cover 7. The screw is inserted into the threaded hole, and by turning the screw, the threaded end of the screw is pressed against the pull rod 5, thereby locking the pull rod 5.

[0033] The lower half of the pressure rod 10 is in an arc-shaped structure, which can better fit the finger and prevent the finger from falling off the pressure rod 10 after the pressure rod 10 is swung, so as to better position the finger;

[0034] A handle 9 is fixed on the mounting cover 7, and a plurality of anti-skid grooves are provided on the handle 9 for increasing friction. When in use, medical staff can hold the handle 9 with their hands and press the pressure rod 10 with their index fingers, thereby making it more convenient to operate the anesthesia metered-dose sprayer. The anti-skid grooves on the handle 9 can increase the friction between the skin and the handle 9 to prevent the anesthesia metered-dose sprayer from falling.

[0035] When the lever 5 is unlocked, the piston 4 moves to the left under the push of the restoring force of the first spring 15 to squeeze the anesthetic so that the anesthetic is transmitted to the syringe through the hose 2. At the nozzle 1, the anesthetic is sprayed in the form of mist on the affected area through the nozzle 1, and there is no need to manually squeeze the anesthetic to inject it, making the operation process more convenient and simple; when a specific dose is injected, the left end of the positioning sleeve 8 will fit with the mounting cover 7 to prevent the pull rod 5 from continuing to move, thereby completing the injection of the required specific dose of anesthetic and avoiding errors in the dose of the anesthetic injection. Then, the pressure on the pressure rod 10 is released, and the lower end of the pressure rod 10 swings to the left to a vertical state under the push of the restoring force of the second spring 14, and the upper end of the pressure rod 10 swings to the right. The upper end of the pressure rod 10 pushes the pendulum rod 12 upward during the swinging process, so that the pendulum rod 12 returns to a horizontal state, and each tooth 11 on the pendulum rod 12 is engaged in a slot aligned with it, thereby locking the pull rod 5 again to prevent the pull rod 5 from moving and waiting for use again, making the operation process of injecting anesthetic more convenient and simple.

Claims

1. A quantitative nebulizer for throat anesthesia used in anesthesia department, comprising a horizontally arranged syringe (3), characterized in that: A hose (2) communicating with the syringe (3) is detachably connected to one end of the syringe (3), a mounting cover (7) is detachably mounted on the other end of the syringe (3), a nozzle (1) communicating with the hose (2) is mounted on the unconnected end of the syringe (2), a freely slidable piston (4) is installed in the syringe (3), a plurality of first springs (15) are fixed between the piston (4) and the mounting cover (7), a pull rod (5) is horizontally fixed on the piston (4), the unfixed end of the pull rod (5) independently passes through the mounting cover (7), a quantitative component for quantitatively determining the injection dose of the anesthetic is provided on one end of the pull rod (5) passing through the mounting cover (7), a locking component for locking the pull rod (5) after movement is provided between the pull rod (5) and the mounting cover (7), and a handle (9) is fixed on the mounting cover (7).

2. The throat anesthesia metered-dose sprayer for anesthesia according to claim 1, characterized in that: The locking assembly comprises two mounting plates (13), the mounting plates (13) being vertically fixed on the inner side wall of the mounting cover (7) in a front-to-back parallel shape, a swing rod (12) being hinged between the two mounting plates (13), the swing rod (12) being located below the pull rod (5), a plurality of latching teeth (11) being fixed on the swing rod (12), a plurality of latching grooves being evenly provided on the side wall of the pull rod (5) along its length direction, and all the latching teeth (11) being engaged in the latching grooves aligned therewith after the swing rod (12) is swung to a horizontal position; a pressure rod (10) being hinged between the two mounting plates (13), being able to swing left and right and pushing the swing rod (12) to swing up and down through the top, a through groove for the lower end of the pressure rod (10) to pass through being provided on the mounting cover (7), and a second spring (14) being fixed between the inner cover top of the mounting cover (7) and the rod body of the lower half of the pressure rod (10).

3. The throat anesthesia metered-dose sprayer for anesthesia according to claim 2, characterized in that: The lower half of the pressure rod (10) has an arc-shaped structure.

4. The throat anesthesia metered-dose sprayer for anesthesia according to claim 1, characterized in that: The quantitative assembly includes a positioning sleeve (8), which is independently mounted on one end of the pull rod (5) passing through the mounting cover (7), and a dosage scale line is provided on the side wall of the pull rod (5) along its length direction, and a screw for locking the positioning sleeve (8) after movement is installed on the side wall of the positioning sleeve (8).

5. The throat anesthesia metered-dose sprayer for anesthesia according to claim 4, characterized in that: The outer wall of the positioning sleeve (8) is provided with anti-slip grooves for increasing friction.

6. The throat anesthesia metered-dose sprayer for anesthesia according to claim 1, characterized in that: The inner cover wall of the mounting cover (7) is provided with a plurality of evenly distributed mounting grooves along its circumferential direction, and the side wall of the injection cylinder (3) is fixed with a plurality of positioning blocks (6) for independently engaging in the corresponding mounting grooves.

7. The throat anesthesia metered-dose sprayer for anesthesia according to claim 1, characterized in that: The handle (9) is provided with a plurality of anti-slip grooves for increasing friction.

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