Anesthesia quantitative spraying equipment for anesthesiology department

Abstract

The invention relates to the technical field of medical instruments, and discloses anesthesia quantitative spraying equipment for the anesthesiology department. The piston push rod is arranged in the syringe and can slide in the syringe; the injection end head is arranged at the end part of the injection cylinder and is communicated with the injection cylinder; the connecting pipe is arranged at one end of the injection end, and a spraying head is fixedly mounted at one end of the connecting pipe; the injection tube is arranged at the position, close to the injection end head, of the injection cylinder and communicates with the injection cylinder, and the anesthesia quantitative spraying equipment for the anesthesiology department has the advantages that quantification is limited through movement, and compared with the operation mode that manual pressing type equipment depends on the hand force of medical staff, the operation efficiency is greatly improved; dose deviation caused by factors such as operation experience difference and hand fatigue can be effectively avoided, it is ensured that the anesthetic dose injected every time strictly conforms to a preset value, and the consistency of the administration dose is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to an anesthetic quantitative spray device used in anesthesia departments. Background Art

[0002] In the clinical diagnosis and treatment of anesthesia, local anesthesia or surface anesthesia is a key step before various minimally invasive surgeries and invasive operations. The core requirement is to accurately control the dosage of anesthetic solution;

[0003] Currently, commonly used anesthesia spray devices in clinical practice are mainly divided into two categories: manual push-type and mechanical metered-dose. Among them, manual push-type devices rely on the medical staff's hand strength to control the spray volume. Due to factors such as operating experience and hand fatigue, it is difficult to ensure the consistency of each administration dose. Especially in the case of children, elderly patients or patients who are sensitive to anesthetic dosage, insufficient dosage can lead to poor analgesia effect, while excessive dosage can cause adverse reactions such as respiratory depression and abnormal heart rate. At the same time, residual liquid in the device and operational errors can cause dosage deviations. Therefore, we have proposed an anesthesia metered-dose spray device for anesthesia department to solve the above problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides an anesthetic quantitative spray device for anesthesia department, which solves the problem of difficulty in ensuring the consistency of the dosage each time.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anesthetic quantitative spray device for anesthesia department, comprising a syringe;

[0006] A piston push rod is disposed in the syringe and can slide in the syringe;

[0007] An injection tip, disposed at the end of the injection barrel and connected to the injection barrel;

[0008] A connecting pipe is provided at one end of the injection head, and a spray head is fixedly mounted on one end of the connecting pipe;

[0009] An injection tube is provided at a position of the syringe close to the injection end and is connected to the syringe;

[0010] A first pressing valve is installed on the injection pipe and is used to flexibly open and close the injection pipe;

[0011] A quantitative mechanism is provided on the syringe and is used to position the piston push rod to achieve quantitative injection;

[0012] The pneumatically driven pipeline residual cleaning mechanism is arranged between the piston push rod and the injection end head, and is used to clear the residual liquid in the connecting pipe.

[0013] Preferably, the quantitative mechanism includes an adjustment seat fixed on the surface of the syringe and a quantitative rod sliding on the adjustment seat, an electromagnet disk is slidably mounted on the adjustment seat, symmetrically arranged springs are fixed between the electromagnet disk and the adjustment seat, the syringe is provided with a rotating disk near the injection end, a laser measuring instrument is installed on the rotating disk, and an adsorption plate is fixedly mounted on one side of the quantitative rod near the electromagnet disk.

[0014] Preferably, the adjusting seat is provided with a sliding opening adapted to the quantitative rod, and the quantitative rod can slide in the sliding opening provided in the adjusting seat, and the adjusting seat is provided with a moving groove adapted to the electromagnet disk.

[0015] Preferably, the rotating disk is rotatably connected to the injection cylinder through a bearing, an L-shaped limit rod is fixed to the surface of the injection end, a limit groove adapted to the L-shaped limit rod is opened on one side of the rotating disk, one end of the L-shaped limit rod is located in the limit groove, and a tension spring is installed between the injection end and the rotating disk through a connecting column.

[0016] Preferably, a rack is fixedly mounted on the surface of the metering rod, and the adjustment seat is provided with a gear meshing with the rack through an opening in the installation cavity, and the gear is rotatably connected to the adjustment seat through a rotating shaft, and an adjustment disk is fixedly mounted on the surface of the rotating shaft, and a rectangular opening adapted to the adjustment disk is opened on the adjustment seat, and the adjustment disk can rotate in the rectangular opening, and the top of the adjustment disk is located above the adjustment seat.

[0017] Preferably, a metal wire is provided in the inner dielectric layer of the connecting tube.

[0018] Preferably, the pneumatically driven pipeline cleaning mechanism includes a pressing airbag fixedly mounted on one end of the piston push rod, an air guide tube fixedly connected to the pressing airbag, the other end of the air guide tube is connected to the injection end, and a second pressing valve is also installed on the injection end.

[0019] Preferably, a connection locking mechanism is installed between the injection cylinder and the piston push rod, and the connection locking mechanism is used to close and seal the piston push rod and the injection cylinder.

[0020] Preferably, a hook seat is fixedly installed on the bottom of the surface of the injection cylinder at the open end, a square groove is opened at one end of the piston push rod, and a connecting shaft is provided in the square groove. The connecting shaft and the piston push rod are fixedly connected, and a hook is rotatably installed on the surface of the connecting shaft through a bearing. A reset torsion spring is wound around the surface of the connecting shaft, and the two ends of the reset torsion spring are fixedly connected to the hook and the piston push rod respectively.

[0021] Preferably, a silicone ring is fixed to one side of the open end of the syringe.

[0022] Beneficial effects

[0023] The present invention provides an anesthetic quantitative spray device for anesthesia department. Compared with the prior art, it has the following advantages:

[0024] This anesthetic metered-dose spray device for anesthesia uses a mobile limiter for quantitative measurement. Compared to manual pressing devices that rely solely on the hand strength of medical staff, it can effectively avoid dosage deviations caused by factors such as differences in operating experience and hand fatigue, ensuring that the anesthetic dose of each injection strictly meets the preset value, significantly improving the consistency of drug administration. It replaces the traditional operation mode that relies on manual judgment. Through the directional movement distance control of the metering rod, it mechanically eliminates dosage deviations caused by operational errors such as visual errors and tactile differences, thereby improving the utilization rate of anesthetics and the accuracy of drug administration. It can completely discharge the residual anesthetic liquid in the connecting tube, achieving precise quantitative effect and reducing dosage deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the adjustment seat structure of the present invention;

[0027] Figure 3 It is a partial diagram of the overall structure of the present invention;

[0028] Figure 4 This is a cross-sectional view of the connecting pipe structure of the present invention;

[0029] Figure 5 This is a partial structural diagram of the present invention from another perspective;

[0030] Figure 6 For the present invention Figure 5 A is an enlarged structural diagram of FIG.

[0031] In the figure: 101, syringe; 102, piston push rod; 103, injection tip; 104, connecting pipe; 105, spray head; 106, metal wire; 107, injection pipe; 108, first pressing valve; 2, quantitative mechanism; 201, quantitative rod; 202, adjustment seat; 203, rack; 204, gear; 205, adjusting disk; 206, spring; 207, electromagnet disk; 208, adsorption plate; 209, display screen; 210, rotating disk; 211, limit groove; 212, tension spring; 213, L-shaped limit rod; 214, laser measuring instrument; 3, pneumatically driven pipeline residual cleaning mechanism; 301, pressing airbag; 302, air guide tube; 303, second pressing valve; 4, connection locking mechanism; 401, hook seat; 402, hook; 403, connecting shaft; 404, reset torsion spring. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] like Figure 1-6 As shown:

[0034] An anesthetic quantitative spray device for anesthesia department, comprising a syringe 101;

[0035] The piston push rod 102 is provided in the syringe 101 and can slide in the syringe 101;

[0036] The injection tip 103 is provided at the end of the injection barrel 101 and is connected to the injection barrel 101;

[0037] The connecting tube 104 is provided at one end of the injection end 103, and a spray head 105 is fixedly mounted on one end of the connecting tube 104. A metal wire 106 is provided in the inner layer of the connecting tube 104.

[0038] The injection tube 107 is provided at a position of the syringe 101 near the injection tip 103 and is connected to the syringe 101;

[0039] A first pressing valve 108 is installed on the injection pipe 107 and is used to flexibly open and close the injection pipe 107;

[0040] The quantitative mechanism 2 is provided on the syringe 101 and is used to position the piston push rod 102 to achieve quantitative injection. The quantitative mechanism 2 includes an adjustment seat 202 fixed on the surface of the syringe 101 and a quantitative rod 201 sliding on the adjustment seat 202. An electromagnetic disk 207 is slidably installed on the adjustment seat 202. A symmetrically arranged spring 206 is fixed between the electromagnetic disk 207 and the adjustment seat 202. A rotating disk 210 is provided at a position near the injection end 103 of the syringe 101. A laser measuring instrument 214 is installed on the rotating disk 210. An adsorption plate 208 is fixedly installed on one side of the quantitative rod 201 near the electromagnetic disk 207. The adjustment seat 202 is provided with a sliding opening adapted to the quantitative rod 201. The quantitative rod 201 can slide in the sliding opening provided in the adjustment seat 202. The adjustment seat 202 is provided with a sliding opening adapted to the electromagnetic disk 207. The movable groove of the rotating disk 210 is rotatably connected to the injection cylinder 101 through a bearing, and an L-shaped limit rod 213 is fixed to the surface of the injection end head 103. A limit groove 211 adapted to the L-shaped limit rod 213 is opened on one side of the rotating disk 210, and one end of the L-shaped limit rod 213 is located in the limit groove 211. A tension spring 212 is installed between the injection end head 103 and the rotating disk 210 through a connecting column. A rack 203 is fixedly installed on the surface of the quantitative rod 201, and the adjusting seat 202 is provided with a gear 204 meshing with the rack 203 through the opened installation cavity. The gear 204 is rotatably connected to the adjusting seat 202 through the rotating shaft, and an adjusting disk 205 is fixedly installed on the surface of the rotating shaft. A rectangular opening adapted to the adjusting disk 205 is opened on the adjusting seat 202, and the adjusting disk 205 can rotate in the rectangular opening, and the top of the adjusting disk 205 is located above the adjusting seat 202;

[0041] A pneumatically driven pipeline cleaning mechanism 3 is provided between the piston push rod 102 and the injection tip 103. The pneumatically driven pipeline cleaning mechanism 3 is used to clear the residual liquid in the connecting tube 104. The pneumatically driven pipeline cleaning mechanism 3 includes a pressing airbag 301 fixedly mounted on one end of the piston push rod 102. An air guide tube 302 is fixedly connected to the pressing airbag 301. The other end of the air guide tube 302 is connected to the injection tip 103. A second pressing valve 303 is also mounted on the injection tip 103.

[0042] A connection locking mechanism 4 is installed between the syringe 101 and the piston push rod 102, and is used to close and seal the piston push rod 102 and the syringe 101.

[0043] A hook seat 401 is fixedly installed on the bottom of the open surface of the syringe 101. A square groove is opened at one end of the piston push rod 102, and a connecting shaft 403 is provided in the square groove. The connecting shaft 403 and the piston push rod 102 are fixedly connected. A hook 402 is rotatably mounted on the surface of the connecting shaft 403 through a bearing. A return torsion spring 404 is wound around the surface of the connecting shaft 403. The two ends of the return torsion spring 404 are fixedly connected to the hook 402 and the piston push rod 102 respectively.

[0044] A silicone ring is fixed to one side of the open end of the syringe 101 .

[0045] In this embodiment, when using the anesthesia metered-dose spray device for anesthesia, the injection tube 107 is connected to the bottle containing the anesthetic agent. The first pressing valve 108 is pressed to release the blockage of the injection tube 107. Then, the piston push rod 102 is pulled to draw the agent into the syringe 101. After the drawing is completed, the piston push rod 102 is pushed to fill the syringe 101 with the agent.

[0046] like Figure 3 As shown: Next, the rotating disk 210 is rotated to drive the laser measuring instrument 214 to project onto the end surface of the piston push rod 102 to measure the length distance at this time, which is a fixed value. During this process, the rotating disk 210 rotates while stretching the tension spring 212. At the same time, the limiting groove 211 provided on the rotating disk 210 slides on the L-shaped limiting rod 213. Then, the rotation of the rotating disk 210 is released, and the tension spring 212 in the stretched state pulls the rotating disk 210 to rotate and reset. After the rotating disk 210 is reset, the limiting groove 211 provided on the L-shaped limiting rod 213 is moved and reset, so that the L-shaped limiting rod 213 is located at the end of the limiting groove 211, thereby locking the reset position of the rotating disk 210. After reset, it is ensured that the laser measuring instrument 214 corresponds to the quantitative rod 201.

[0047] After the rotating disk 210 is reset, the laser measuring instrument 214 is projected onto one end of the metering rod 201 to measure the length at this time. The difference between the previously measured distance to the end surface of the piston push rod 102 and the currently measured distance to one end of the metering rod 201 is calculated. This difference is the distance the metering rod 201 needs to move in order to ensure that one end of the metering rod 201 is in contact with the piston push rod 102.

[0048] like Figure 2As shown, by pushing the adjustment disk 205 to rotate, the gear 204 is driven to rotate synchronously, and the gear 204 is meshed with the rack 203, thereby driving the quantitative rod 201 to move. By moving the quantitative rod 201, the distance projected by the laser measuring instrument 214 on the quantitative rod 201 is continuously displayed on the display screen 209. After the quantitative rod 201 moves to the above-mentioned difference distance, it stops moving. At this time, the quantitative rod 201 is in contact with the cross section of the piston push rod 102. When quantitative injection is required, the quantitative rod 201 is moved, and the distance projected by the laser measuring instrument 214 on the quantitative rod 201 is continuously reduced. The reduced distance is the limit distance of the movement of the piston push rod 102, that is, the directional movement distance. When the quantitative rod 201 moves to a certain distance, the electromagnet disk 207 is energized to adsorb and fix the adsorption plate 208. The adsorption plate 208 can be made of metal iron, thereby locking the position of the metering rod 201 and pushing the piston push rod 102 so that its cross section contacts one end of the metering rod 201, thereby achieving the quantitative injection of the medicine inside the syringe 101;

[0049] like Figure 4 As shown, the injected anesthetic liquid is injected into the connecting tube 104 through the injection end 103 and sprayed out through the spray head 105 at the head end of the connecting tube 104 to the anesthesia area for anesthesia treatment. A metal wire 106 is provided in the connecting tube 104. The metal wire 106 can bend with external force and maintain a specific shape, so that the connecting tube 104 can flexibly adjust its direction according to the drainage demand. After adjustment, it is not easy to rebound by itself, ensuring accurate docking with a specific part. The support of the metal wire 106 can fix the path of the connecting tube 104, reducing errors caused by displacement of the connecting tube 104 during operation;

[0050] After the piston push rod 102 moves a certain distance to achieve quantitative injection, the pressing airbag 301 is pressed at the same time. One end of the air guide tube 302 is a one-way air inlet valve. At the same time, the pressing airbag 301 is also equipped with a one-way air inlet valve to facilitate the entry of external air into the pressing airbag 301. The pressing airbag 301 is in a naturally relaxed state and is filled with a certain amount of air. When an external force presses the pressing airbag 301, the cavity of the pressing airbag 301 is compressed and the internal air is squeezed. At this time, the gas enters the air guide tube 302. During this process, the second pressing valve 303 is pressed at the same time to seal one end of the injection terminal 103 to prevent the liquid medicine inside the connecting tube 104 from flowing back into the syringe 101. At this time, the pressure in the connecting tube 104 increases, and the gas entering the connecting tube 104 forms a positive pressure, which acts on the liquid level in the connecting tube 104. When the gas pressure is greater than the resistance of the liquid flowing in the connecting tube 104, the liquid is pushed by the gas and moves along the inner cavity of the connecting tube 104 toward the outlet. The pressing airbag 301 is continuously pressed, and the gas continuously enters the connecting tube 104, pushing the liquid to continue moving until the liquid is completely discharged from the connecting tube 104 through the outlet of the spray head 105. After releasing the pressing airbag 301, the pressing airbag 301 resets under its own elasticity, inhaling external air, and preparing for the next discharge. This ensures that the discharged quantitative anesthetic liquid is more accurate, improves the use effect of the structure, and meets actual use needs;

[0051] like Figure 5 and 6 As shown, when the device is not in use, the piston push rod 102 is completely pushed into the syringe 101. At this time, the open end of the syringe 101 fits with the pressing end surface of the piston push rod 102. During this process, the hook 402 is blocked by the hook seat 401. At this time, the hook 402 drives the connecting shaft 403 to rotate at an angle, and drives the reset torsion spring 404 to produce elastic deformation. When the hook seat 401 releases the obstruction to the hook 402, the reset torsion spring 404 elastically resets, and can drive the hook 402 to be stuck on the hook seat 401, thereby realizing the connection and locking of the syringe 101 and the piston push rod 102. A silicone ring is provided at the open end of the syringe 101 to increase the sealing of the syringe 101 and the piston push rod 102. Therefore, after the device is cleaned and disinfected in the later stage, the end of the syringe 101 is blocked, and dust is prevented from entering the syringe 101, providing protection for later use and further improving the use effect of the structure;

[0052] This solution uses mobile limit quantitative measurement. Compared with the operation method of manually pressing the device and relying on the hand strength of the medical staff, it can effectively avoid dosage deviations caused by factors such as differences in operating experience and hand fatigue, ensure that the anesthetic dosage of each injection strictly complies with the preset value, significantly improve the consistency of the drug dosage, and replace the traditional operation mode that relies on manual judgment. Through the directional movement distance control of the quantitative rod 201, the dosage deviation caused by operational errors such as visual errors and hand feel differences is eliminated from the mechanical structure, thereby improving the utilization rate of the anesthetic and the accuracy of drug administration, and being able to completely discharge the residual anesthetic liquid in the connecting tube 104, achieving accurate quantitative effect and reducing dosage deviation.

[0053] It should be noted that the syringe 101 may be equipped with a small rechargeable battery to provide power to the power supply components of the device.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An anesthetic quantitative spray device for anesthesia department, characterized by: comprising a syringe (101); A piston push rod (102) is disposed in the injection barrel (101) and is slidable in the injection barrel (101); An injection tip (103) is provided at the end of the injection barrel (101) and is connected to the injection barrel (101); A connecting tube (104) is provided at one end of the injection end head (103), and a spray head (105) is fixedly mounted at one end of the connecting tube (104); An injection tube (107) is provided at a position of the injection barrel (101) close to the injection tip (103) and is in communication with the injection barrel (101); A first pressing valve (108) is installed on the injection pipe (107) and is used to flexibly open and close the injection pipe (107); A quantitative mechanism (2) is provided on the injection cylinder (101) and is used to position the piston push rod (102) to achieve quantitative injection; The pneumatically driven pipeline residual cleaning mechanism (3) is provided between the piston push rod (102) and the injection end head (103), and is used to clear the residual liquid in the connecting pipe (104).

2. The anesthesia quantitative spray device for anesthesia department according to claim 1, characterized in that: The quantitative mechanism (2) comprises an adjustment seat (202) fixed on the surface of the injection barrel (101) and a quantitative rod (201) sliding on the adjustment seat (202); an electromagnetic disk (207) is slidably mounted on the adjustment seat (202); symmetrically arranged springs (206) are fixed between the electromagnetic disk (207) and the adjustment seat (202); a rotating disk (210) is provided at a position near the injection end (103) of the injection barrel (101); a laser measuring instrument (214) is mounted on the rotating disk (210); and an adsorption plate (208) is fixedly mounted on one side of the quantitative rod (201) at a position near the electromagnetic disk (207).

3. The anesthesia quantitative spray device for anesthesia department according to claim 2, characterized in that: The adjusting seat (202) is provided with a sliding opening adapted to the quantitative rod (201), and the quantitative rod (201) can slide in the sliding opening provided in the adjusting seat (202). The adjusting seat (202) is provided with a movable groove adapted to the electromagnet disk (207).

4. The anesthesia quantitative spray device for anesthesia department according to claim 3, characterized in that: The rotating disk (210) is rotatably connected to the injection cylinder (101) via a bearing; an L-shaped limiting rod (213) is fixed to the surface of the injection terminal (103); a limiting groove (211) adapted to the L-shaped limiting rod (213) is provided on one side of the rotating disk (210); one end of the L-shaped limiting rod (213) is located in the limiting groove (211); and a tension spring (212) is installed between the injection terminal (103) and the rotating disk (210) via a connecting column.

5. The anesthesia quantitative spraying device for anesthesia department according to claim 3, characterized in that: A rack (203) is fixedly mounted on the surface of the metering rod (201); a gear (204) meshing with the rack (203) is provided on the adjustment seat (202) through an opening in the installation cavity; the gear (204) is rotatably connected to the adjustment seat (202) via a rotating shaft; an adjustment disk (205) is fixedly mounted on the surface of the rotating shaft; a rectangular opening adapted to the adjustment disk (205) is provided on the adjustment seat (202); the adjustment disk (205) can rotate within the rectangular opening, and the top of the adjustment disk (205) is located above the adjustment seat (202).

6. The anesthesia quantitative spray device for anesthesia department according to claim 1, characterized in that: A metal wire (106) is provided in the inner layer of the connecting tube (104).

7. The anesthesia quantitative spray device for anesthesia department according to claim 1, characterized in that: The pneumatically driven pipeline cleaning mechanism (3) comprises a pressing airbag (301) fixedly mounted on one end of the piston push rod (102); an air guide tube (302) is fixedly connected to the pressing airbag (301); the other end of the air guide tube (302) is connected to the injection terminal (103); and a second pressing valve (303) is also mounted on the injection terminal (103).

8. The anesthesia metered spray device for anesthesia department according to claim 1, characterized in that: A connection locking mechanism (4) is installed between the syringe (101) and the piston push rod (102), and the connection locking mechanism (4) is used to close and seal the piston push rod (102) and the syringe (101).

9. The anesthesia metered spray device for anesthesia department according to claim 8, characterized in that: A hook seat (401) is fixedly installed on the bottom of the surface of the injection cylinder (101) at the open end, a square groove is opened at one end of the piston push rod (102), and a connecting shaft (403) is provided in the square groove. The connecting shaft (403) and the piston push rod (102) are fixedly connected. A hook (402) is rotatably installed on the surface of the connecting shaft (403) through a bearing. A reset torsion spring (404) is wound around the surface of the connecting shaft (403), and the two ends of the reset torsion spring (404) are fixedly connected to the hook (402) and the piston push rod (102) respectively.

10. The anesthesia metered spray device for anesthesia department according to claim 9, characterized in that: A silicone ring is fixed on one side of the open end of the injection barrel (101).

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