Medicine infusion equipment

Abstract

The invention discloses medicine infusion equipment which comprises a base and a drainage assembly used for switching liquid medicine bottles. The drainage assembly comprises a disc body, a connecting rod, supporting rods and a ring sleeve, the connecting rod is fixedly connected to the disc body, the supporting rods are symmetrically and fixedly connected to the connecting rod, the other ends of the supporting rods are fixedly connected with the ring sleeve, the ring sleeve is in threaded connection with a bolt, the bolt is used for clamping a liquid medicine bottle, a plurality of ejector rods are hinged to the disc body, and the ejector rods are fixedly connected to the disc body. The ejector rod corresponds to the supporting rod, a needle head is fixedly connected to the ejector rod, a plurality of through holes are symmetrically formed in the side wall of the needle head, and the ejector rod is connected with the switching assembly; according to the invention, the liquid medicine bottle can be replaced for continuous infusion after being emptied.

Description

Technical Field

[0001] The invention belongs to the field of medical technology, and in particular relates to a drug infusion device. Background Art

[0002] Drug infusion is the process of infusing drugs into blood vessels at a certain speed through an infusion device, so that the drugs enter the blood circulation and achieve therapeutic effects. It has a wide range of applications, including the infusion of antibiotics, chemotherapy drugs, nutritional support fluids, etc. It has the advantages of strong efficacy, rapid onset of action, and easy absorption. Most patients in clinical practice need to infuse multiple bottles of liquid medicine in sequence, and when the liquid medicine in the bottle is emptied, it needs to be replaced immediately. If medical staff fail to replace the drugs in time, problems such as blockage of the infusion tube, unstable drug concentration, air embolism, and medical disputes will occur. Now, an infusion device that can replace the liquid medicine bottles in sequence is proposed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a drug infusion device to solve the above problems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a drug infusion device, including a base, a drainage assembly, which is used to switch a medicine bottle; the drainage assembly includes a disc body, a connecting rod, a strut and a ring sleeve, the disc body is fixedly connected to a connecting rod, and a plurality of struts are symmetrically fixedly connected to the connecting rod, the other end of the strut is fixedly connected to the ring sleeve, and a bolt is threadedly connected to the ring sleeve, and the bolt is used to clamp the medicine bottle, and a plurality of push rods are hinged on the disc body, and the push rods correspond to the struts, and a needle is fixedly connected to the push rod, and a plurality of through holes are symmetrically provided on the side wall of the needle, and the push rod is connected to the switching assembly.

[0005] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0006] Further technical solution: the needle tip is provided with a needle sleeve, the needle sleeve is used to block the through hole on the needle tip, the needle sleeve is symmetrically fixedly connected with connecting ears, the connecting ears are slidably connected to the slide rod, the slide rod is provided with a spring, one end of the spring is fixedly connected to the push rod, and the other end of the spring is fixedly connected to the connecting ear, and the needle is connected to the adjustment assembly.

[0007] Further technical solution: The switching assembly includes a push rod, a cam A and a sliding sleeve, one end of the push rod is hinged on the push rod, the other end of the push rod is hinged to the sliding sleeve, the sliding sleeve is fixedly connected with the cam A, and the position of the cam A corresponds to the support rod.

[0008] Further technical solution: Both sides of the sliding sleeve are slidably connected to the positioning rods, the two positioning rods are fixedly connected to the disk body, a return spring is sleeved on the positioning rods, 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 disk body.

[0009] Further technical solution: a turntable is rotatably connected in the disk body, a cam B is fixedly connected to the turntable, the cam B can contact with the cam A and push it 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 disk body.

[0010] Further technical solution: The adjustment component includes a plug, a hose, a drip tube 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 the rubber head. Multiple hoses are fixedly connected to the drip tube. The other end of the drip tube is fixedly connected to a connecting tube.

[0011] Further technical solution: the connecting pipe passes through the through hole on the connecting sleeve and is fixedly connected to the connecting sleeve. A push wheel is slidably connected to the connecting sleeve. The push wheel is slidably connected to the connecting sleeve through an inclined groove on the connecting sleeve. The push wheel is used to adjust the flow rate of the liquid in the connecting pipe.

[0012] Beneficial Effects

[0013] The present invention provides a drug infusion device, which has the following beneficial effects compared with the prior art:

[0014] 1. The user puts multiple medicines into the ring sleeve respectively and tightens the bolts to fix the medicine bottle in the ring sleeve. Then the user starts the motor, so that the motor drives the turntable fixedly connected to its output shaft to start rotating at a uniform speed. At this time, the cam B fixedly connected to the turntable rotates synchronously, so that the cam B starts to contact the first cam A. At the same time, because the contact surfaces of the push rod and the cam A are both arc-shaped, they will not interfere with the rotation of the cam B. At this time, the cam B begins to gradually push the cam A, so that the cam A pushes the sliding sleeve fixedly connected to it to slide synchronously. At this time, the sliding sleeve begins to slide on the positioning rod slidably connected to it. At this time, the sliding sleeve begins to compress the reset spring fixedly connected to it, so that after the cam B is separated from the cam A, the reset spring can quickly push the sliding sleeve to reset. At the same time When the sliding sleeve slides, the push rod hinged on it starts to move synchronously. At this time, the push rod starts to push the push rod hinged thereto, so that the push rod rotates upward with its hinged position with the disk body as a fulcrum. At this time, the push rod pushes the needle sleeve to start contacting the rubber plug of the medicine bottle mouth. At this time, the needle sleeve is limited under the action of the rubber plug. At this time, the push rod continues to rotate, so that the needle sleeve drives the connecting ear fixedly connected thereto to start sliding on the sliding rod, and starts to compress the spring fixedly connected thereto through the connecting ear, so that it is in a compressed state. At this time, the needle begins to gradually extend from the needle sleeve and begins to pierce the rubber plug of the medicine bottle mouth. When the needle completely enters 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.

[0015] 2. When the liquid medicine in the liquid medicine 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. At this time, since cam B stops supporting cam A, the reset spring starts to rebound and reset, thereby pushing the sliding sleeve fixedly connected to it to slide synchronously, so that the push rod hinged on the sliding sleeve starts to reset and pulls the push rod to rotate downward. At this time, the needle starts to separate from the current liquid medicine bottle. At the same time, the connecting rod starts to rebound and reset, and pushes the connecting ear fixedly connected to it to slide synchronously, thereby pushing the needle sleeve to reset and re-block the through hole on the needle to prevent external air from entering the dropper. At this time, cam B is synchronously aligned with the central axis of the next cam A, so that the needle pierces the next liquid medicine bottle, thereby continuing the liquid medicine infusion, so as to avoid the medical staff being unable to replace the liquid medicine bottle in time and affecting the patient's treatment;

[0016] 3. When the needle is inserted into the medicine bottle, the medicine in the medicine bottle begins to flow out and flows into the dropper through the hose. At this time, the user can connect the connecting tube with the catheter in the patient's body, so that the medicine in the dropper is circulated and infused into the patient's body. In this process, the user can push the push wheel to make it start to slide along the inclined slide groove on the dropper. At this time, the push wheel gradually increases the degree of pressure on the connecting tube during the inclined sliding process, thereby adjusting the liquid outflow speed in the connecting tube. At the same time, the push wheel can also be pushed to the bottom of the connecting sleeve, so that the push wheel completely blocks the connecting tube and stops the medicine from flowing out of the connecting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is an enlarged schematic diagram of the structure of the present invention.

[0019] Figure 3 It is an enlarged schematic cross-section diagram of the cam structure of the present invention.

[0020] Figure 4 It is a schematic cross-sectional view of the push rod structure of the present invention.

[0021] Figure 5 It is a cross-sectional schematic diagram of the transmission structure of the present invention.

[0022] Figure 6 It is a schematic diagram of the top structure of the present invention.

[0023] Figure 7 It is a side view structural schematic diagram of the present invention.

[0024] Notes on figure numbers: base 101, drainage component 2, switching component 3, adjustment component 4, disk body 201, connecting rod 202, support rod 203, ring sleeve 204, bolt 205, push rod 206, needle 207, needle sleeve 208, connecting ear 209, slide rod 2001, spring 2002, push rod 301, cam A302, slide sleeve 303, positioning rod 304, return spring 305, cam B306, turntable 307, motor 308, plug 401, hose 402, drip tube 403, connecting tube 404, connecting sleeve 405, push wheel 406. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0027] See also Figure 1 , Figure 6 as well as Figure 2 , provided in one embodiment of the present invention, is a drug infusion device, comprising a base 101, and further comprising:

[0028] Drainage component 2, used to switch the medicine bottle;

[0029] The drainage assembly 2 includes a disk body 201, a connecting rod 202, a strut 203 and a ring sleeve 204. The disk body 201 is fixedly connected to the connecting rod 202, and a plurality of struts 203 are symmetrically fixedly connected to the connecting rod 202. The other end of the strut 203 is fixedly connected to the ring sleeve 204. The ring sleeve 204 is threaded with a bolt 205, and the bolt 205 is used to clamp the medicine bottle. The disk body 201 is hinged with a plurality of ejector rods 206, and the ejector rods 206 correspond to the strut rods 203. A needle 207 is fixedly connected to the ejector rod 206, and a plurality of through holes are symmetrically provided on the side wall of the needle 207. The ejector 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 disk body 201. The sensor is connected to the motor 308 to facilitate automatic switching of the medicine bottle after the infusion of the medicine is completed.

[0030] See also Figure 2 Specifically, the needle 207 is sleeved with a needle sleeve 208, and the needle sleeve 208 is used to block the through hole on the needle 207, and the inner wall of the needle sleeve 208 is provided with a sealing strip for increasing the blocking effect of the needle 207, and the needle sleeve 208 is symmetrically fixedly connected with connecting ears 209, and the connecting ears 209 are slidably connected to the sliding rod 2001, and the sliding rod 2001 is fixedly connected to the top rod 206. The sliding rod 2001 is sleeved with a spring 2002, 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, and the needle 207 is connected to the adjustment component 4.

[0031] See also Figure 3 and Figure 4 Specifically, the switching assembly 3 includes a push rod 301, a cam A302 and a sliding sleeve 303. One end of the push rod 301 is hinged on 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.

[0032] See also Figure 4Specifically, 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 disk 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 disk body 201.

[0033] See also Figure 3 and Figure 5 Specifically, a turntable 307 is rotatably connected in the disk 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 disk body 201.

[0034] In the embodiment of the present invention, the user puts a plurality of medicines into the ring sleeve 204 respectively and then tightens the bolt 205, thereby fixing the medicine bottle in the ring sleeve 204. Then the user starts the motor 308, so that the motor 308 drives the turntable 307 fixedly connected to its output shaft to start rotating at a uniform speed. At this time, the cam B306 fixedly connected to the turntable 307 rotates synchronously, so that the cam B306 starts to contact the first cam A302. At the same time, since the contact surfaces of the push rod 301 and the cam A302 are both arc-shaped, they will not interfere with the rotation of the cam B306. At this time, the cam B306 starts to gradually push the cam A302, so that the cam A302 pushes the sliding sleeve 303 fixedly connected thereto to slide synchronously. At this time, the sliding sleeve 303 starts to slide on the positioning rod 304 slidably connected thereto. At this time, the sliding sleeve 303 starts to compress the reset spring 305 fixedly connected thereto, so that after the cam B306 is separated from the cam A302, the reset spring 305 can quickly push the sliding sleeve 303 to reset. At the same time, when the sliding sleeve 30 3, the push rod 301 hinged thereon starts to move synchronously, and at this time, the push rod 301 starts to push the push rod 206 hinged thereon, so that the push rod 206 rotates upward with its hinged position with the disk body 201 as a fulcrum, and at this time, the push rod 206 pushes the needle sleeve 208 to start contacting with the rubber plug at the mouth of the liquid medicine bottle, and at this time, the needle sleeve 208 is limited by the action of the rubber plug, and at this time, the push rod 206 continues to rotate, so that the needle sleeve 208 drives the connecting ear 209 fixed thereon to start sliding on the slide bar 2001, and through the connecting ear The ear 209 starts to compress the spring 2002 fixedly connected thereto, making it in a compressed state. At this time, the needle 207 starts to gradually extend from the needle sleeve 208, so that the needle sleeve 208 stops blocking the through hole on the side of the needle 207 and starts to pierce the rubber plug at the mouth of the liquid medicine bottle. When the needle 207 completely enters 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, so that the liquid medicine in the liquid medicine bottle flows out through the through hole on the side of the needle 207.

[0035] In the embodiment of the present invention, when the medicine 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. At this time, since the cam B306 stops supporting the cam A302, the reset spring 305 begins to rebound and reset, thereby pushing the sliding sleeve 303 fixedly connected thereto to slide synchronously, so that the push rod 301 hinged on the sliding sleeve 303 begins to reset and pulls the push rod 206 to rotate downward. At this time, the needle 207 begins to detach from the current medicine bottle. At the same time, the connecting rod 202 begins to rebound and reset, and pushes the connecting ear 209 fixedly connected thereto to slide synchronously, thereby pushing the needle sleeve 208 to reset and re-block the through hole on the needle 207 to prevent external air from entering the dropper 403. At this time, the cam B306 is synchronously aligned with the central axis of the next cam A302, so that the needle 207 pierces the next medicine bottle, thereby continuing the medicine infusion, so as to avoid the medical staff being unable to replace the medicine bottle in time and affecting the patient's treatment.

[0036] See also Figure 2 as well as Figure 7 Specifically, the adjustment component 4 includes a plug 401, a hose 402, a drip tube 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 plugged into the needle 207 through the rubber head thereon. Multiple hoses 402 are fixedly connected to the drip tube 403. The other end of the drip tube 403 is fixedly connected to the connecting tube 404.

[0037] See also 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 push wheel 406 is slidably connected to the connecting sleeve 405. The push wheel 406 is slidably connected to the connecting sleeve 405 through an inclined slide groove on the connecting sleeve 405. The push wheel 406 is used to adjust the flow rate of the liquid in the connecting pipe 404.

[0038] In the embodiment of the present invention, when the needle 207 pierces the medicine bottle, the medicine in the medicine bottle begins to flow out and flows into the dropper 403 through the hose 402. At this time, the user can connect the connecting tube 404 with the catheter in the patient's body, so that the medicine in the dropper 403 is circulated and infused into the patient's body. During this process, the user can push the push wheel 406 to make it start to slide along the inclined slide groove on the dropper 403. At this time, the push wheel 406 gradually increases the degree of pressure on the connecting tube 404 during the inclined sliding process, thereby adjusting the liquid outflow speed in the connecting tube 404. At the same time, the push wheel 406 can also be pushed to the bottom of the connecting sleeve 405, so that the push wheel 406 completely blocks the connecting tube 404, and the medicine stops flowing out of the connecting tube 404.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] The fixed connection referred to in this application refers to a connection in which a part or component is fixed without any relative movement, which can be divided into detachable connection and non-detachable connection.

[0041] (1) Removable connection: The parts are fixed together by screws, splines, wedge pins, etc. This connection method can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0042] (2) Non-detachable connection: mainly refers to welding, riveting and tenoning. Since forging, sawing or oxygen cutting are required for disassembly during maintenance or replacement, spare parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.) during connection.

[0043] The sliding connection referred to in the present application means that the component can slide along a linear trajectory, and the hinged connection referred to in the present application means that the component can rotate along an axial constraint.

[0044] In some cases, the sliding connection and hinge referred to in the present application may also be damped so that the components have the ability to maintain a desired position.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drug infusion device, comprising a base (101), characterized in that: Also includes: A drainage component (2), used for switching the medicine bottle; The drainage assembly (2) comprises a disk body (201), a connecting rod (202), a support rod (203) and a ring sleeve (204); the disk body (201) is fixedly connected to the connecting rod (202); a plurality of 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 sleeve (204); a bolt (205) is threadedly connected to the ring sleeve (204); the bolt (205) is used to clamp the liquid medicine bottle; a plurality of push rods (206) are hingedly connected to the disk body (201); the push rods (206) correspond to the support rods (203); a needle (207) is fixedly connected to the push rod (206); a plurality of through holes are symmetrically provided on the side wall of the needle (207) for circulating liquid medicine; the push 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 sleeved with a needle sleeve (208), and the needle sleeve (208) is used to block the through hole on the side wall of the needle (207). The needle sleeve (208) is symmetrically fixedly connected with a connecting ear (209), and the connecting ear (209) is slidably connected to the sliding rod (2001). The sliding rod (2001) is fixedly connected to the push rod (206). The sliding rod (2001) is sleeved with a spring (2002), one end of the spring (2002) is fixedly connected to the push rod (206), and the other end of the spring (2002) is fixedly connected to the connecting ear (209). The needle (207) is connected to the adjustment component (4).

3. The drug infusion device according to claim 1, characterized in that: The switching assembly (3) comprises a push rod (301), a cam A (302) and a sliding sleeve (303); one end of the push rod (301) is hinged on the push rod (206); the other end of the push rod (301) is hinged on the sliding sleeve (303); the cam A (302) is fixedly connected to the sliding sleeve (303); the position of the cam A (302) corresponds to 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 rods (304), and the two positioning rods (304) are fixedly connected to the disk body (201). A return spring (305) is sleeved on the positioning rods (304), and 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 disk body (201).

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

6. The drug infusion device according to claim 2, characterized in that: The regulating assembly (4) comprises a plug (401), a hose (402), a drip tube (403) and a connecting tube (404); a plurality of the 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 plugged into the needle (207) through a rubber head thereon; a plurality of the hoses (402) are fixedly connected to the drip tube (403); and the other end of the drip tube (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 push wheel (406) is slidably connected to the connecting sleeve (405). The push wheel (406) is slidably connected to the connecting sleeve (405) through an inclined sliding groove on the connecting sleeve (405). The push wheel (406) is used to adjust the flow rate of the liquid in the connecting pipe (404).

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