A drug infusion device

Abstract

The utility model discloses a medicine infusion equipment, including base, drainage component for switching liquid medicine bottle, the drainage component, including disc body, connecting rod, bracing piece and ring, the disc body is fixedly connected with connecting rod, a plurality of bracing pieces are fixedly connected with symmetry on the connecting rod, the other end of bracing piece is fixedly connected with ring, the ring is threadedly connected with bolt, the bolt is used for clamping liquid medicine bottle, a plurality of top rods are hinged on the disc body, the top rod corresponds with bracing piece, needle is fixedly connected on the top rod, a plurality of through -holes are arranged on needle side wall symmetry, the top rod is connected with switching assembly, the utility model discloses can even replace continuous infusion after liquid medicine bottle empties.

Description

Technical Field

[0001] This utility model belongs to the field of medical technology, and in particular relates to a drug infusion device. Background Technology

[0002] Drug infusion involves delivering medications into the bloodstream at a controlled rate using an infusion set, achieving a therapeutic effect. It has a wide range of applications, including the infusion of antibiotics, chemotherapy drugs, and nutritional support solutions, and boasts advantages such as strong efficacy, rapid onset of action, and easy absorption. Clinically, most patients require multiple infusions of medication sequentially, and these bottles need to be replaced immediately when empty. Failure to replace medications promptly can lead to problems such as infusion tube blockage, unstable drug concentrations, air embolism, and medical disputes. This paper proposes an infusion device that allows for sequential replacement of medication bottles. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a drug infusion device that solves the aforementioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a drug infusion device, comprising a base and a drainage assembly for switching drug bottles; the drainage assembly comprises a disc, a connecting rod, a support rod, and a ring sleeve; the connecting rod is fixedly connected to the disc, and multiple support rods are symmetrically fixedly connected to the connecting rod; the other end of each support rod is fixedly connected to the ring sleeve; a bolt is threaded onto the ring sleeve for securing the drug bottle; multiple push rods are hinged to the disc, and the push rods correspond to the support rods; a needle is fixedly connected to each push rod, and multiple through holes are symmetrically provided on the side wall of the needle; the push rod is connected to the switching assembly.

[0005] Based on the above technical solutions, this utility model also provides the following optional technical solutions: A further technical solution: A needle sleeve is fitted on the needle head, the needle sleeve is used to block the through hole on the needle head, and connecting ears are symmetrically fixedly connected on the needle sleeve. The connecting ears are slidably connected to the slide rod, and a spring is fitted on the slide rod. One end of the spring is fixedly connected to the top rod, and the other end of the spring is fixedly connected to the connecting ear. The needle head is connected to the adjustment component.

[0006] Further technical solution: The switching component includes a push rod, a cam A and a sliding sleeve. One end of the push rod is hinged to the top rod, and the other end of the push rod is hinged to the sliding sleeve. A cam A is fixedly connected to the sliding sleeve, and the position of the cam A corresponds to that of the support rod.

[0007] A further technical solution: The two sides of the sliding sleeve are slidably connected to the positioning rods, the two positioning rods are fixedly connected to the disc body, and a return spring is sleeved on the positioning rod. One end of the return spring is fixedly connected to the sliding sleeve, and the other end of the return spring is fixedly connected to the disc body.

[0008] A further technical solution: A turntable is rotatably connected to the disc body, and a cam B is fixedly connected to the turntable. The cam B can contact and push the cam A to slide during its rotation. The turntable is fixedly connected to the output shaft of the motor, and the motor is fixedly connected to the disc body.

[0009] Further technical solution: The adjustment component includes a plug, a hose, a dropper, and a connecting tube. Multiple plugs are threadedly connected to the bottom of the top rod. The hose is rotatably connected to the plug. The hose is inserted into the needle through its rubber head. Multiple hoses are fixedly connected to the dropper. The other end of the dropper is fixedly connected to the connecting tube.

[0010] A further technical solution: the connecting tube passes through the through hole on the connecting sleeve and is fixedly connected to the connecting sleeve. A pusher is slidably connected to the connecting sleeve. The pusher is slidably connected to the connecting sleeve through an inclined groove on the connecting sleeve. The pusher is used to adjust the flow rate of the liquid in the connecting tube.

[0011] Beneficial effects This invention provides a drug infusion device, which has the following advantages compared with the prior art: 1. After the user places multiple medicines into the rings and tightens the bolts, the medicine bottles are fixed in the rings. The user then starts the motor, which drives the turntable fixed to its output shaft to rotate at a constant speed. At this time, cam B, which is fixed to the turntable, rotates synchronously, causing cam B to contact the first cam A. Since the contact surfaces of the push rod and cam A are arc-shaped, they do not interfere with the rotation of cam B. Cam B then gradually pushes cam A, causing cam A to push the sliding sleeve fixed to it to slide synchronously. The sliding sleeve then begins to slide on the positioning rod that it is slidably connected to. At this time, the sliding sleeve begins to compress the return spring that it is fixed to, so that after cam B separates from cam A, the return spring can quickly push the sliding sleeve to return to its original position. When the sliding sleeve slides, the push rod hinged to it begins to move synchronously. At this time, the push rod begins to push the top rod hinged to it, causing the top rod to rotate upward with its hinge point with the disc body as the fulcrum. At this time, the top rod pushes the needle sleeve to contact the rubber stopper at the mouth of the medicine bottle. At this time, the rubber stopper limits the needle sleeve. The top rod continues to rotate, causing the needle sleeve to drive the connecting ear fixedly connected to it to slide on the sliding rod. The connecting ear begins to compress the spring fixedly connected to it, putting it in a compressed state. At this time, the needle begins to gradually extend out of the needle sleeve and begin to pierce the rubber stopper at the mouth of the medicine bottle. When the needle is completely inside the bottle, the central axis of cam B is synchronously aligned with the central axis of cam A. At this time, the user controls the motor to stop, so that the medicine in the medicine bottle flows out through the through hole on the side of the needle. 2. When the medication in the bottle is about to be emptied, the medical staff starts the motor. At this time, cam B continues to rotate and gradually separates from cam A. Since cam B stops supporting cam A, the return spring begins to rebound and reset, which pushes the sliding sleeve fixed to it to slide synchronously. This causes the push rod hinged on the sliding sleeve to reset and pulls the top rod to rotate downward. At this time, the needle begins to detach from the current medication bottle. Simultaneously, the connecting rod begins to rebound and reset, pushing the connecting ear fixed to it to slide synchronously. This pushes the needle sleeve to reset and re-seal the through hole on the needle to prevent external air from entering the drip chamber. At this time, cam B is simultaneously aligned with the central axis of the next cam A, so that the needle can be inserted into the next medication bottle to continue the medication infusion. This avoids the situation where the medical staff cannot change the medication bottle in time, which would affect the patient's treatment. 3. When the needle is inserted into the medicine bottle, the medicine begins to flow out and into the drip chamber through the tubing. At this time, the user can connect the connecting tube to the catheter inside the patient's body, so that the medicine in the drip chamber is circulated and infused into the patient's body. During this process, the user can push the pusher to make it slide along the inclined groove on the drip chamber. As the pusher slides, it gradually increases the pressure on the connecting tube, thereby adjusting the flow rate of the liquid in the connecting tube. At the same time, the pusher can be pushed to the bottom of the connecting sleeve, so that the pusher completely blocks the connecting tube and stops the medicine from flowing out of the connecting tube. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is an enlarged schematic diagram of the structure of this utility model.

[0014] Figure 3 This is an enlarged cross-sectional view of the cam structure of this utility model.

[0015] Figure 4 This is a schematic cross-sectional view of the push rod structure of this utility model.

[0016] Figure 5 This is a cross-sectional schematic diagram of the transmission structure of this utility model.

[0017] Figure 6 This is a schematic diagram of the top structure of this utility model.

[0018] Figure 7 This is a side view of the structure of this utility model.

[0019] Figure reference numerals: Base 101, Drainage assembly 2, Switching assembly 3, Adjustment assembly 4, Disc 201, Connecting rod 202, Support rod 203, Ring sleeve 204, Bolt 205, Top rod 206, Needle 207, Needle sleeve 208, Connecting ear 209, Slide rod 2001, Spring 2002, Push rod 301, Cam A 302, Slide sleeve 303, Positioning rod 304, Return spring 305, Cam B 306, Turntable 307, Motor 308, Plug 401, Hose 402, Dropper 403, Connecting tube 404, Connecting sleeve 405, Push wheel 406. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] Please see Figure 1 , Figure 6 as well as Figure 2 According to one embodiment of the present invention, a drug infusion device includes a base 101 and further includes: Drainage component 2 is used to switch the medicine bottle; The drainage assembly 2 includes a disc body 201, a connecting rod 202, a support rod 203, and a ring 204. The connecting rod 202 is fixedly connected to the disc body 201. Multiple support rods 203 are symmetrically fixedly connected to the connecting rod 202. The other end of the support rod 203 is fixedly connected to the ring 204. A bolt 205 is threadedly connected to the ring 204. The bolt 205 is used to clamp the medicine bottle. Multiple push rods 206 are hinged to the disc body 201. The push rods 206 correspond to the support rods 203. A needle 207 is fixedly connected to the push rod 206. Multiple through holes are symmetrically provided on the side wall of the needle 207. The push rod 206 is connected to the switching assembly 3. A sensor for detecting the remaining amount of medicine in the medicine bottle may be provided on the disc body 201. The sensor is connected to the motor 308 to facilitate automatic switching of the medicine bottle after the medicine infusion is completed.

[0023] Please see Figure 2 Specifically, a needle sleeve 208 is fitted onto the needle tip 207. The needle sleeve 208 is used to seal the through hole on the needle tip 207, and the inner wall of the needle sleeve 208 is provided with a sealing strip to increase the sealing effect on the needle tip 207. Connecting ears 209 are symmetrically fixedly connected to the needle sleeve 208. The connecting ears 209 are slidably connected to the slide rod 2001. The slide rod 2001 is fixedly connected to the top rod 206. A spring 2002 is fitted onto the slide rod 2001. One end of the spring 2002 is fixedly connected to the top rod 206, and the other end of the spring 2002 is fixedly connected to the connecting ear 209. The needle tip 207 is connected to the adjustment assembly 4.

[0024] Please see Figure 3 and Figure 4 Specifically, the switching component 3 includes a push rod 301, a cam A302, and a sliding sleeve 303. One end of the push rod 301 is hinged to the top rod 206, and the other end of the push rod 301 is hinged to the sliding sleeve 303. The cam A302 is fixedly connected to the sliding sleeve 303, and the position of the cam A302 corresponds to the support rod 203.

[0025] Please see Figure 4 Specifically, the two sides of the sliding sleeve 303 are slidably connected to the positioning rod 304, and the two positioning rods 304 are fixedly connected to the disc body 201. A return spring 305 is sleeved on the positioning rod 304. One end of the return spring 305 is fixedly connected to the sliding sleeve 303, and the other end of the return spring 305 is fixedly connected to the disc body 201.

[0026] Please see Figure 3 and Figure 5Specifically, a turntable 307 is rotatably connected to the disc body 201, and a cam B306 is fixedly connected to the turntable 307. The cam B306 can contact the cam A302 and push it to slide during its rotation. The turntable 307 is fixedly connected to the output shaft of the motor 308, and the motor 308 is fixedly connected to the disc body 201.

[0027] In this embodiment of the utility model, the user places multiple medicines into the ring 204 and tightens the bolt 205 to fix the medicine bottle in the ring 204. The user then starts the motor 308, causing the motor 308 to drive the turntable 307 fixedly connected to its output shaft to rotate at a constant speed. At this time, the cam B306 fixedly connected to the turntable 307 rotates synchronously, causing the cam B306 to contact the first cam A302. Since the contact surfaces of the push rod 301 and the cam A302 are both arc-shaped, they do not interfere with the rotation of the cam B306. The cam B306 then gradually pushes the cam A302, causing the cam A302 to push the sliding sleeve 303 fixedly connected to it to slide synchronously. The sliding sleeve 303 then slides on the positioning rod 304 slidably connected to it. The sliding sleeve 303 then compresses the return spring 305 fixedly connected to it, so that after the cam B306 separates from the cam A302, the return spring 305 can quickly push the sliding sleeve 303 back to its original position. Simultaneously, when the sliding sleeve 306... 03 During sliding, the push rod 301 hinged to it begins to move synchronously. At this time, the push rod 301 begins to push the top rod 206 hinged to it, causing the top rod 206 to rotate upward with its hinge point with the disc body 201 as the fulcrum. At this time, the top rod 206 pushes the needle sleeve 208 to contact the rubber stopper at the mouth of the medicine bottle. At this time, the rubber stopper limits the needle sleeve 208. The top rod 206 continues to rotate, causing the needle sleeve 208 to drive the connecting ear 209 fixedly connected to it to begin sliding on the slide rod 2001, and through the connecting... When the lug 209 begins to compress the spring 2002 that is fixedly connected to it, the needle 207 begins to gradually extend from the needle sleeve 208, thereby stopping the needle sleeve 208 from blocking the through hole on the side of the needle 207 and beginning to insert into the rubber stopper of the medicine bottle. When the needle 207 is fully inserted into the bottle, the central axis of the cam B306 is synchronously aligned with the central axis of the cam A302. At this time, the user controls the motor 308 to stop rotating, thereby allowing the medicine in the medicine bottle to flow out through the through hole on the side of the needle 207. In this embodiment of the invention, when the liquid in the medicine bottle is about to be emptied, the medical staff starts the motor 308. At this time, the cam B306 continues to rotate and gradually separates from the cam A302. Since the cam B306 stops supporting the cam A302, the return spring 305 begins to rebound and reset, thereby pushing the sliding sleeve 303 fixedly connected to it to slide synchronously. This causes the push rod 301 hinged on the sliding sleeve 303 to reset and pull the top rod 206 to rotate downward. At this time, the needle 207 begins to detach from the current medicine bottle. Simultaneously, the connecting rod 202 begins to rebound and reset, pushing the connecting ear 209 fixedly connected to it to slide synchronously. This pushes the needle sleeve 208 to reset and re-seal the through hole on the needle 207 to prevent external air from entering the drip chamber 403. At this time, the cam B306 is simultaneously aligned with the central axis of the next cam A302, so that the needle 207 pierces the next medicine bottle, thereby continuing the infusion of medicine and preventing the medical staff from being unable to change the medicine bottle in time, which would affect the patient's treatment.

[0028] Please see Figure 2 as well as Figure 7 Specifically, the adjustment component 4 includes a plug 401, a hose 402, a dropper 403, and a connecting tube 404. Multiple plugs 401 are threadedly connected to the bottom of the top rod 206. The hose 402 is rotatably connected to the plug 401. The hose 402 is inserted into the needle 207 through its rubber head. Multiple hoses 402 are fixedly connected to the dropper 403. The other end of the dropper 403 is fixedly connected to the connecting tube 404.

[0029] Please see Figure 7 Specifically, the connecting pipe 404 passes through the through hole on the connecting sleeve 405 and is fixedly connected to the connecting sleeve 405. A pusher 406 is slidably connected to the connecting sleeve 405. The pusher 406 is slidably connected to the connecting sleeve 405 through an inclined groove on the connecting sleeve 405. The pusher 406 is used to adjust the flow rate of the liquid in the connecting pipe 404.

[0030] In this embodiment of the invention, when the needle 207 is inserted into the medicine bottle, the medicine in the bottle begins to flow out and into the drip chamber 403 through the tubing 402. At this time, the user can connect the connecting tube 404 to the catheter in the patient's body, so that the medicine in the drip chamber 403 can be circulated and infused into the patient's body. During this process, the user can push the pusher 406 to slide along the inclined groove on the drip chamber 403. At this time, the pusher 406 gradually increases the pressure on the connecting tube 404 during the inclined sliding process, thereby adjusting the flow rate of the liquid in the connecting tube 404. At the same time, the pusher 406 can be pushed to the bottom of the connecting sleeve 405, so that the pusher 406 completely blocks the connecting tube 404, and the medicine stops flowing out of the connecting tube 404.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The term "fixed connection" as used in this application refers to a connection in which parts or components are fixed without any relative movement. This includes both detachable and non-detachable connections.

[0033] (1) Detachable connection: Components are fixed together using screws, splines, wedges, etc. This type of connection allows for disassembly during maintenance without damaging the parts. However, the specifications of the connectors used must be correct. (Such as the length of bolts, keys, and wedges), and tighten them properly.

[0034] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxy-acetylene cutting for repair or replacement, these parts generally cannot be reused. Furthermore, during connection, [the following should be noted]: Pay attention to process quality, technical testing, and remedial measures (such as correction, polishing, etc.).

[0035] The sliding connection referred to in this application means that the component can slide along a linear trajectory, and the hinge referred to in this application means that the component can rotate along an axial constraint.

[0036] In some cases, the sliding connection and hinge referred to in this application may also be damped, enabling the component to maintain in the desired position.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drug infusion device, comprising a base (101), characterized in that, Also includes: Drainage component (2) is used to switch medicine bottles; The drainage assembly (2) includes a disc body (201), a connecting rod (202), a support rod (203), and a ring (204). The connecting rod (202) is fixedly connected to the disc body (201). Multiple support rods (203) are symmetrically fixedly connected to the connecting rod (202). The other end of the support rod (203) is fixedly connected to the ring (204). A bolt (205) is threadedly connected to the ring (204). The bolt (205) is used to clamp the medicine bottle. Multiple top rods (206) are hinged to the disc body (201). The top rods (206) correspond to the support rods (203). A needle (207) is fixedly connected to the top rod (206). Multiple through holes are symmetrically provided on the side wall of the needle (207) for the flow of medicine. The top rod (206) is connected to the switching assembly (3).

2. The drug infusion device according to claim 1, characterized in that, The needle (207) is fitted with a needle sleeve (208), which is used to block the through hole on the side wall of the needle (207). The needle sleeve (208) is symmetrically fixedly connected with connecting ears (209), which are slidably connected to the slide rod (2001). The slide rod (2001) is fixedly connected to the top rod (206). The slide rod (2001) is fitted with a spring (2002), one end of which is fixedly connected to the top rod (206), and the other end of which is fixedly connected to the connecting ear (209). The needle (207) is connected to the adjustment assembly (4).

3. The drug infusion device according to claim 1, characterized in that, The switching assembly (3) includes a push rod (301), a cam A (302), and a sliding sleeve (303). One end of the push rod (301) is hinged to the top rod (206), and the other end of the push rod (301) is hinged to the sliding sleeve (303). The cam A (302) is fixedly connected to the sliding sleeve (303), and the position of the cam A (302) corresponds to that of the support rod (203).

4. The drug infusion device according to claim 3, characterized in that, The two sides of the sliding sleeve (303) are slidably connected to the positioning rod (304), and the two positioning rods (304) are fixedly connected to the disc body (201). A return spring (305) is sleeved on the positioning rod (304), one end of the return spring (305) is fixedly connected to the sliding sleeve (303), and the other end of the return spring (305) is fixedly connected to the disc body (201).

5. The drug infusion device according to claim 1, characterized in that, A turntable (307) is rotatably connected to the disc body (201). A cam B (306) is fixedly connected to the turntable (307). The cam B (306) can contact and push the cam A (302) to slide during its rotation. The turntable (307) is fixedly connected to the output shaft of the motor (308). The motor (308) is fixedly connected to the disc body (201).

6. The drug infusion device according to claim 2, characterized in that, The adjustment assembly (4) includes a plug (401), a hose (402), a dropper (403), and a connecting tube (404). Multiple plugs (401) are threaded to the bottom of the top rod (206). The hose (402) is rotatably connected to the plug (401). The hose (402) is inserted into the needle (207) through its rubber head. Multiple hoses (402) are fixedly connected to the dropper (403). The other end of the dropper (403) is fixedly connected to the connecting tube (404).

7. The drug infusion device according to claim 6, characterized in that, The connecting pipe (404) passes through the through hole on the connecting sleeve (405) and is fixedly connected to the connecting sleeve (405). A pusher (406) is slidably connected to the connecting sleeve (405). The pusher (406) is slidably connected to the connecting sleeve (405) through an inclined groove on the connecting sleeve (405). The pusher (406) is used to adjust the flow rate of the liquid in the connecting pipe (404).

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