Full-automatic analgesia pump for anesthesia

Abstract

The utility model discloses a full-automatic anesthesia analgesia pump which comprises a shell, an air pump is fixedly installed on the bottom face of the shell, a liquid storage bag is arranged in the shell, and a sealing cover is fixedly installed on the outer surface of the shell. Through the cooperation of the shell, the air pump, the liquid storage bag, the sealing cover and the liquid passing pipe and the cooperation between the shell and the sealing cover, a sealed space can be formed, the air pump can stably inject air into the space, the air pressure of the space formed between the shell and the sealing cover is increased, and the increased air pressure can extrude the liquid storage bag; according to the analgesia pump, the liquid storage bag is provided with the liquid passing pipe, calming drugs in the liquid storage bag can enter the reserved needle through the liquid passing pipe, high air pressure in the shell can prevent blood of a patient from flowing back into the liquid storage bag through the reserved needle and the liquid passing pipe, the cost can be effectively reduced, and the analgesia pump is convenient to use due to the simple structure and low cost. The problem that a conventional analgesia pump capable of being repeatedly used is high in price is solved.

Description

Technical Field

[0001] This utility model relates to the field of analgesia pump technology, and in particular to a fully automatic analgesia pump for anesthesia. Background Technology

[0002] Analgesia pumps are fluid infusion devices typically used post-operatively or for pain management to continuously and stably deliver analgesic medications to patients, thereby reducing pain and improving their quality of life. The use of analgesia pumps can be individualized according to the patient's pain level and medication needs.

[0003] There are several types of analgesia pumps, including epidural analgesia pumps and intravenous analgesia pumps, each with its own characteristics and applicable scenarios. When using an analgesia pump, the doctor will select the appropriate type of pump and analgesic drug based on the patient's specific condition, and set the appropriate infusion rate and dosage to ensure optimal analgesia and minimal side effects.

[0004] Most pain pumps are disposable, mainly to prevent cross-infection between patients. Pain pumps can provide good pain relief to nerves with a dose of one percent of the conventional analgesic, making it less likely for patients to develop drug resistance. Therefore, they are also used for pain relief in cancer patients. As we all know, cancer patients in the late stages suffer from cancer pain, which disrupts the normal life of patients and their families. In order to enable cancer patients and their families to maintain a good life in the later years of the patient, they usually follow the doctor's prescription for pain pumps prescribed by the oncology and pain departments. However, conventional pain pumps are disposable, while reusable pain pumps are expensive. In order to make pain pumps more accessible to cancer patients, this utility model proposes a fully automatic analgesic pump for anesthesia. Utility Model Content

[0005] The main objective of this invention is to provide a fully automatic analgesic pump for anesthesia, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A fully automatic analgesic pump for anesthesia includes a housing, an air pump fixedly mounted on the bottom surface of the housing, a reservoir inside the housing, a sealing cover fixedly mounted on the outer surface of the housing, a fixing frame fixedly mounted on the inner wall of the housing, the inner wall of the fixing frame being in close contact with the outer surface of the reservoir, and a fluid inlet tube inside the sealing cover.

[0008] Preferably, an air inlet pipe and an air outlet pipe are fixedly installed on the inner side of the outer casing. A pipe cap is threaded onto the outer surface of the air outlet pipe. A rubber tube is fixedly installed on the outer surface of the pipe cap. The outer surface of the rubber tube is in close contact with the inner wall of the air outlet pipe.

[0009] Preferably, an air supply pipe is fixedly installed at the output end of the air pump, the outer surface of the air supply pipe is in close contact with the outer surface of the air inlet pipe, and a threaded sleeve is rotatably connected to the outer surface of the air supply pipe, the inner wall of the threaded sleeve is threadedly connected to the outer surface of the air inlet pipe.

[0010] Preferably, the inner wall of the sealing cap is provided with a flow groove, the outer surface of the flow groove is fixedly connected with an auxiliary ring, the inner wall of the auxiliary ring is fixedly installed with a sealing flap, and the outer surfaces of the auxiliary ring and the flow groove are in close contact with the outer surface of the liquid pipe.

[0011] Preferably, a rigid tube is fixedly installed at the bottom end of the liquid passage tube, and the outer surface of the rigid tube is in close contact with the outer surface of the sealing flap.

[0012] Preferably, a sealing ring is fixedly installed on the outer surface of the sealing cap, and a sealing gasket is fixedly installed on the outer surface of the liquid passage tube, with the outer surface of the sealing gasket in close contact with the outer surface of the sealing ring.

[0013] Preferably, the outer surface of the liquid passage tube is threaded with a control tube, and the bottom end of the control tube is in close contact with the outer surface of the sealing gasket.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, the cooperation between the outer shell, air pump, reservoir, sealing cap, and infusion tube creates a sealed space. The air pump stably infuses the reservoir with air, increasing the air pressure in the space between the shell and the sealing cap. This increased pressure compresses the reservoir, allowing the sedative medication inside to flow through the infusion tube into the indwelling needle. When the sedative medication in the reservoir is depleted while the patient is asleep or unnoticed by family members, the high pressure inside the shell prevents blood from flowing back into the reservoir through the indwelling needle and infusion tube. When refilling the reservoir is needed, the infusion tube can be inserted into the liquid medication. The reverse air pump output creates a negative pressure inside the shell, allowing the reservoir to draw the medication in. This design effectively reduces costs and, due to its simple structure and low cost, solves the problem of high prices associated with conventional reusable analgesic pumps.

[0016] In this invention, through the cooperation between the liquid inlet tube, the rigid tube, the liquid reservoir and the sealing valve, when the liquid inlet tube is pulled out, the rigid tube will separate from the sealing valve, and the sealing valve will close with its own elasticity and the push of air pressure. Thus, after the liquid inlet tube is pulled out, the liquid in the liquid reservoir will not flow out, or the external gas will not enter. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a fully automatic analgesia pump for anesthesia according to this utility model;

[0018] Figure 2 This is a schematic diagram of the overall internal structure of a fully automatic analgesia pump for anesthesia according to this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the sealing cover of a fully automatic analgesia pump according to the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the fluid inlet pipe of a fully automatic analgesia pump according to this utility model.

[0021] Figure 5 This is a cross-sectional view of the sealing cover of a fully automatic anesthesia pump according to the present invention.

[0022] In the diagram: 1. Outer shell; 2. Air pump; 3. Liquid reservoir; 4. Sealing cap; 5. Fixing frame; 6. Liquid inlet pipe; 7. Air inlet pipe; 8. Air outlet pipe; 9. Pipe cap; 10. Rubber hose; 11. Gas delivery pipe; 12. Threaded sleeve; 13. Flow channel; 14. Auxiliary ring; 15. Sealing flap; 16. Rigid pipe; 17. Sealing ring; 18. Sealing gasket; 19. Control pipe. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1-5As shown, a fully automatic anesthesia pump includes a housing 1, an air pump 2 fixedly mounted on the bottom surface of the housing 1, a reservoir 3 inside the housing 1, a sealing cover 4 fixedly mounted on the outer surface of the housing 1, and a fixing frame 5 fixedly mounted on the inner wall of the housing 1. The inner wall of the fixing frame 5 is in close contact with the outer surface of the reservoir 3. A fluid inlet tube 6 is provided inside the sealing cover 4. The fit between the housing 1 and the sealing cover 4 forms a sealed space. The air pump 2 can stably inject air into the space, causing the air pressure in the space between the housing 1 and the sealing cover 4 to rise. The rising air pressure can compress the reservoir 3, allowing the sedative drug inside the reservoir 3 to be released. The medication is introduced into the indwelling needle through the infusion tube 6. When the sedative drug in the reservoir 3 is depleted while the patient is asleep or when family members are not paying attention, the high air pressure inside the outer shell 1 prevents the patient's blood from flowing back into the reservoir 3 through the indwelling needle and the infusion tube 6. When it is necessary to refill the reservoir 3, the infusion tube 6 can be inserted into the drug liquid. The reverse output of the air pump 2 can create a negative pressure inside the outer shell 1, which allows the reservoir 3 to draw the drug into it. This allows the analgesic pump to effectively reduce costs. Due to its simple structure and low cost, it solves the problem of the high price of conventional reusable analgesic pumps.

[0025] An air inlet pipe 7 and an air outlet pipe 8 are fixedly installed on the inner side of the outer casing 1. A pipe cap 9 is threaded onto the outer surface of the air outlet pipe 8. A rubber tube 10 is fixedly installed on the outer surface of the pipe cap 9. The outer surface of the rubber tube 10 is in close contact with the inner wall of the air outlet pipe 8. A one-way valve is installed inside both the air inlet pipe 7 and the air outlet pipe 8. The one-way valve can maintain one-way flow. A closing valve is also installed inside the air inlet pipe 7 and the air outlet pipe 8. When the air inlet pipe 7 and the air outlet pipe 8 are not connected to any pipe, the closing valve can close the air inlet pipe 7 and the air outlet pipe 8. When a pipe is connected, the closing valve can be punctured to allow gas to flow. The pipe cap 9 can provide support for the rubber tube 10. The rubber tube 10 can seal the air inlet pipe 7 or the air outlet pipe 8, thereby reducing the entry of external dust into the outer casing 1.

[0026] An air supply pipe 11 is fixedly installed at the output end of the air pump 2. The outer surface of the air supply pipe 11 is in close contact with the outer surface of the air inlet pipe 7. A threaded sleeve 12 is rotatably connected to the outer surface of the air supply pipe 11. The inner wall of the threaded sleeve 12 is threadedly connected to the outer surface of the air inlet pipe 7. The threaded sleeve 12 can be screwed onto the air inlet pipe 7, so that the air inlet pipe 7 and the air supply pipe 11 are interconnected. The threaded sleeve 12 can also be screwed onto the air outlet pipe 8, so that the air pump 2 can output in reverse, thereby performing air extraction.

[0027] The inner wall of the sealing cap 4 is provided with a flow groove 13, and an auxiliary ring 14 is fixedly connected to the outer surface of the flow groove 13. A sealing flap 15 is fixedly installed on the inner wall of the auxiliary ring 14. The outer surfaces of the auxiliary ring 14 and the flow groove 13 are in close contact with the outer surface of the liquid tube 6. The flow groove 13 and the auxiliary ring 14 can assist the insertion of the liquid tube 6. After insertion, because the flow groove 13 and the auxiliary ring 14 can increase the contact area with the liquid tube 6, more force is required when the liquid tube 6 is pulled out.

[0028] A rigid tube 16 is fixedly installed at the bottom end of the liquid-conducting tube 6. The outer surface of the rigid tube 16 is in close contact with the outer surface of the sealing flap 15. The rigid tube 16 can puncture the sealing flap 15 and allow the liquid to flow between it and the reservoir 3. When the liquid-conducting tube 6 is pulled out, the rigid tube 16 will leave the sealing flap 15. The sealing flap 15 will close itself due to its own elasticity and the push of air pressure. Therefore, after the liquid-conducting tube 6 is pulled out, the liquid in the reservoir 3 will not flow out, or the external gas will not enter.

[0029] A sealing ring 17 is fixedly installed on the outer surface of the sealing cap 4, and a sealing gasket 18 is fixedly installed on the outer surface of the liquid passage tube 6. The outer surface of the sealing gasket 18 is in close contact with the outer surface of the sealing ring 17. The contact between the sealing ring 17 and the sealing gasket 18 can increase the friction and contact area between the liquid passage tube 6 and the sealing cap 4 as a whole, thus requiring more force when pulling out the liquid passage tube 6.

[0030] The outer surface of the liquid passage tube 6 is threaded with a control tube 19. The bottom end of the control tube 19 is in close contact with the outer surface of the sealing gasket 18. When the control tube 19 moves to the position of the liquid passage tube 6 at the sealing cover 4, it can squeeze the liquid passage tube 6, so that the liquid passage tube 6 will not be pulled out after it is connected to the sealing cover 4.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fully automatic analgesia pump for anesthesia, characterized in that: The device includes an outer shell (1), an air pump (2) is fixedly installed on the bottom surface of the outer shell (1), a liquid storage bladder (3) is provided inside the outer shell (1), a sealing cap (4) is fixedly installed on the outer surface of the outer shell (1), a fixing frame (5) is fixedly installed on the inner wall of the outer shell (1), the inner wall of the fixing frame (5) is in close contact with the outer surface of the liquid storage bladder (3), and a liquid passage tube (6) is provided inside the sealing cap (4).

2. The fully automatic analgesia pump for anesthesia according to claim 1, characterized in that: An air inlet pipe (7) and an air outlet pipe (8) are fixedly installed on the inner side of the outer casing (1). A pipe cap (9) is threadedly connected to the outer surface of the air outlet pipe (8). A rubber tube (10) is fixedly installed on the outer surface of the pipe cap (9). The outer surface of the rubber tube (10) is in close contact with the inner wall of the air outlet pipe (8).

3. The fully automatic analgesic pump for anesthesia according to claim 2, characterized in that: The output end of the air pump (2) is fixedly installed with an air supply pipe (11). The outer surface of the air supply pipe (11) is in close contact with the outer surface of the air inlet pipe (7). The outer surface of the air supply pipe (11) is rotatably connected with a threaded sleeve (12). The inner wall of the threaded sleeve (12) is threadedly connected to the outer surface of the air inlet pipe (7).

4. The fully automatic analgesia pump for anesthesia according to claim 1, characterized in that: The inner wall of the sealing cap (4) is provided with a flow groove (13), and an auxiliary ring (14) is fixedly connected to the outer surface of the flow groove (13). A sealing flap (15) is fixedly installed on the inner wall of the auxiliary ring (14). The outer surfaces of the auxiliary ring (14) and the flow groove (13) are in close contact with the outer surface of the liquid pipe (6).

5. The fully automatic analgesia pump for anesthesia according to claim 4, characterized in that: A rigid tube (16) is fixedly installed at the bottom end of the liquid passage tube (6), and the outer surface of the rigid tube (16) is in close contact with the outer surface of the sealing flap (15).

6. The fully automatic analgesia pump for anesthesia according to claim 1, characterized in that: A sealing ring (17) is fixedly installed on the outer surface of the sealing cap (4), and a sealing gasket (18) is fixedly installed on the outer surface of the liquid passage pipe (6). The outer surface of the sealing gasket (18) is in close contact with the outer surface of the sealing ring (17).

7. The fully automatic analgesia pump for anesthesia according to claim 6, characterized in that: The outer surface of the liquid passage tube (6) is threaded with a control tube (19), and the bottom end of the control tube (19) is in close contact with the outer surface of the sealing gasket (18).

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