Anti-splashing chemotherapeutic drug dispensing device

By using a servo motor-driven worm gear structure and bolt slot design, combined with protective blocks and protective covers, the problems of liquid dripping from the delivery pipe and splashing from the dispensing cylinder are solved, thereby improving the safety of drug dispensing.

CN223811009UActive Publication Date: 2026-01-20THE FIRST PEOPLES HOSPITAL OF NANTONG
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Patent Information

Application Number
CN202520412305.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-01-20
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Existing drug dispensing devices have poor efficiency in recovering dripping drug solution when the delivery pipe is in the storage state, resulting in drug splashing and reducing the safety of drug dispensing.

Method used

The worm gear structure driven by a servo motor rotates the medicine storage cylinder. Combined with bolts and slots, and the use of protective blocks and covers, it prevents the medicine from dripping and splashing.

Benefits of technology

It effectively prevents the medicine from dripping from the inner wall of the delivery pipe and splashing from the top of the dispensing cylinder, thus improving the safety of the dispensing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an anti-splashing chemotherapy medicine dispensing device, and relates to the technical field of medical instruments. The anti-splashing chemotherapeutic drug dispensing device comprises a device body, a control box is fixedly connected to the bottom of the device body, a servo motor is fixedly connected to the outer wall of the control box, the output end of the servo motor is fixedly connected with a worm rotationally connected with the inner wall of the control box, and the outer wall of the worm is meshed with a worm gear. By arranging a protection block, when a medicine storage cylinder is not used, a servo motor can be started to drive a worm gear to rotate through rotation of a worm, the medicine storage cylinder is driven to synchronously rotate, and in order to prevent the situation that residual medicine liquid on the inner wall of a conveying pipe drips, a rotating block can be operated, so that the protection block moves to the position below the conveying pipe; and the first bolt is rotated, so that the first bolt slides into the inner wall of the clamping groove through the limiting effect of the first nut, and the effect of reducing dripping and splashing of the liquid medicine is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a splash-proof chemotherapy drug dispenser. BACKGROUND

[0002] Chemotherapy drugs are drugs for treating tumors. Chemotherapy drugs can kill tumor cells. These drugs can act on different aspects of tumor cell growth and reproduction, inhibit or kill tumor cells. Chemotherapy treatment is one of the main means of treating tumors at present. During chemotherapy treatment, a physician needs to mix multiple drugs to prepare a drug specifically for treating tumors. During the mixing process, the physician usually needs to operate multiple drug bottles.

[0003] The existing drug dispensing device can mix and operate various drugs during use, but when different drugs are delivered through the delivery pipe, the drug liquid dripping recovery effect of the delivery pipe in the storage state is not high, which causes the drug liquid remaining on the inner wall of the delivery pipe to drip and splash, reducing the safety of the drug during dispensing. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a splash-proof chemotherapy drug dispenser to solve the problem of low drug liquid dripping recovery effect of the delivery pipe in the storage state when different drugs are delivered through the delivery pipe.

[0005] The present application provides a splash-proof chemotherapy drug dispenser, which comprises a device main body, a control box fixedly connected to the bottom of the device main body, a servo motor fixedly connected to the outer wall of the control box, a worm fixedly connected to the output end of the servo motor and rotatably connected to the inner wall of the control box, a worm gear meshing with the outer wall of the worm, a storage cartridge fixedly connected to the rotation center of the worm gear through a rotating shaft, a delivery pipe fixedly connected to the outer wall of the storage cartridge, a rotating block rotatably connected to the outer wall of the storage cartridge, a protective block fixedly connected to the outer wall of the rotating block, a first nut provided on the outer wall of the rotating block, a first bolt threadedly connected to the inner wall of the first nut and slidably connected to the outer wall of the storage cartridge, a clamping groove formed in the connecting part of the outer wall of the storage cartridge and the first bolt, and a dispensing cartridge fixedly connected to the outer wall of the device main body.

[0006] Preferably, a sliding block is slidably connected to the outer wall of the dispensing cartridge, a protective cover is fixedly connected to the top of the sliding block, a second nut is provided on the outer wall of the sliding block, a second bolt is threadedly connected to the inner wall of the second nut and slidably connected to the outer wall of the dispensing cartridge, a storage slot is formed in the connecting part of the outer wall of the dispensing cartridge and the second bolt, an opening slot is formed in the connecting part of the outer wall of the dispensing cartridge and the second bolt, and an insertion slot is formed in the connecting part of the outer wall of the protective cover and the delivery pipe.

[0007] Preferably, the medicine storage cartridge is connected with the device body through a rotating structure formed by a worm and a worm wheel.

[0008] Preferably, the inner wall contour of the rotating block is matched with the outer wall contour of the medicine storage cartridge, and the rotating block is connected with the medicine storage cartridge through a clamping structure formed by a first bolt and a clamping groove.

[0009] Preferably, the clamping groove is annularly arranged on the outer wall of the medicine storage cartridge, and the protective block is arranged on the storage track of the delivery pipe.

[0010] Preferably, the sliding block is connected with the storage groove through a clamping structure formed by a second nut and a second bolt, and the storage groove and the opening groove are arranged in a linear shape.

[0011] Preferably, the insertion groove and the delivery pipe are arranged in one-to-one correspondence.

[0012] Beneficial effects:

[0013] In view of the fact that the existing medicine dispensing device has low anti-dripping and recycling effect on the unused delivery pipe and low anti-splashing effect on the top of the medicine storage cartridge during dispensing.

[0014] In use, when the medicine storage cartridge is not used, the servo motor is turned on to drive the worm to rotate, drive the worm wheel to rotate, and drive the medicine storage cartridge to rotate synchronously.

[0015] In use, in order to improve the anti-splashing effect of the delivery pipe on the medicine in the medicine storage cartridge, the second bolt is rotated, the second nut is limited, the second bolt is slid into the storage groove, the protective cover is attached to the top of the medicine storage cartridge, and the insertion groove is attached to the surface of the delivery pipe, thereby reducing the splashing of the medicine on the top of the medicine storage cartridge.

[0016] The above description is only a summary of the technical solutions of the embodiments of the application, and the technical solutions can be implemented according to the content of the specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings described in the following are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 It is a whole structure schematic view of the chemotherapy medicine dispenser of the present application.

[0019] Figure 2 It is a clamping groove position distribution structure schematic view of the chemotherapy medicine dispenser of the present application.

[0020] Figure 3 It is a worm and worm wheel connection structure schematic view of the chemotherapy medicine dispenser of the present application.

[0021] Figure 4 It is a medicine dispensing cylinder position distribution structure schematic view of the chemotherapy medicine dispenser of the present application.

[0022] Figure 5 It is a protective cover opening state structure schematic view of the chemotherapy medicine dispenser of the present application.

[0023] Figure 6 It is a protective block and conveying pipe butt joint state structure schematic view of the chemotherapy medicine dispenser of the present application.

[0024] Explanation of reference signs:

[0025] 1, device main body; 2, control box; 3, servo motor; 4, worm; 5, worm wheel; 6, medicine storage cylinder; 7, conveying pipe; 8, rotating block; 9, protective block; 10, first nut; 11, first bolt; 12, clamping groove; 13, medicine dispensing cylinder; 14, sliding block; 15, protective cover; 16, second nut; 17, second bolt; 18, storage groove; 19, opening groove; 20, insertion groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the use herein of terms such as "comprise", "have" and "include" or their conjugates herein, are used in their open ended, non-limiting sense to encompass the items listed or the equivalents thereof.

[0028] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another.

[0029] The positional words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the application. For example, in the description of the application, the terms "center", "lengthwise", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0030] In the description of the application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, the "connection" or "connection" of mechanical structure can mean physical connection, for example, physical connection can be fixed connection, for example, fixed connection by fixing member, for example, fixed connection by screw, bolt or other fixing member; physical connection can also be detachable connection, for example, mutual clamping or clamping connection; physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0031] In order to enable those skilled in the art to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings.

[0032] The utility model provides a kind of Figures 1-6The illustrated splash-proof chemotherapy drug dispenser includes a device body 1, a control box 2 fixedly connected to the bottom of the device body 1, a servo motor 3 fixedly connected to the outer wall of the control box 2, a worm 4 fixedly connected to the output end of the servo motor 3 and rotatably connected to the inner wall of the control box 2, a worm gear 5 meshing with the outer wall of the worm 4, a medicine storage cylinder 6 fixedly connected to the rotation center of the worm gear 5 through a rotating shaft, a delivery pipe 7 fixedly connected to the outer wall of the medicine storage cylinder 6, a rotating block 8 rotatably connected to the outer wall of the medicine storage cylinder 6, a protective block 9 fixedly connected to the outer wall of the rotating block 8, a first nut 10 provided on the outer wall of the rotating block 8, a first bolt 11 threadedly connected to the inner wall of the first nut 10 and slidably connected to the outer wall of the medicine storage cylinder 6, a clamping groove 12 formed at the connecting part between the outer wall of the medicine storage cylinder 6 and the first bolt 11, and a dispensing cylinder 13 fixedly connected to the outer wall of the device body 1.

[0033] The outer wall of the dispensing cylinder 13 is slidably connected to a sliding block 14, the top of the sliding block 14 is fixedly connected to a protective cover 15, the outer wall of the sliding block 14 is provided with a second nut 16, the inner wall of the second nut 16 is threadedly connected to a second bolt 17 slidably connected to the outer wall of the dispensing cylinder 13, a receiving groove 18 is formed at the connecting part between the outer wall of the dispensing cylinder 13 and the second bolt 17, an opening groove 19 is formed at the connecting part between the outer wall of the dispensing cylinder 13 and the second bolt 17, and the outer wall of the protective cover 15 is provided with an insertion groove 20 at the connecting part with the delivery pipe 7.

[0034] The provision of the protective cover 15 is beneficial to improve the anti-splashing effect of the delivery pipe 7 on the medicine in the dispensing cylinder 13. The second bolt 17 can be rotated, and the second nut 16 limits the sliding of the second bolt 17 into the receiving groove 18. The protective cover 15 is attached to the top of the dispensing cylinder 13, and the insertion groove 20 is attached to the surface of the delivery pipe 7, thereby reducing the splashing of the medicine at the top of the dispensing cylinder 13.

[0035] The medicine storage cylinder 6 is rotatably connected to the device body 1 through the worm 4 and the worm gear 5.

[0036] The rotation of the worm 4 drives the medicine storage cylinder 6 to rotate along the outer wall of the device body 1 through the connection of the worm gear 5, thereby conveniently adjusting the use position of the medicine storage cylinder 6.

[0037] The inner wall profile of the rotating block 8 is adapted to the outer wall profile of the medicine storage cylinder 6, and the rotating block 8 is rotatably connected to the medicine storage cylinder 6 through the first bolt 11 and the clamping groove 12.

[0038] The inner wall profile of the rotating block 8 is adapted to the outer wall profile of the medicine storage cylinder 6, thereby conveniently adjusting the use position of the protective block 9.

[0039] The clamping groove 12 is annularly arranged on the outer wall of the medicine storage cylinder 6.

[0040] The clamping groove 12 is annularly arranged on the outer wall of the medicine storage cylinder 6.

[0041] The sliding block 14 is clamped between the second nut 16 and the second bolt 17 and the receiving groove 18, and the receiving groove 18 and the opening groove 19 are linearly arranged.

[0042] The second bolt 17 is slid along the inner wall of the receiving groove 18 to drive the sliding block 14 to be clamped and fixed on the outer wall of the medicine dispensing cylinder 13, so as to conveniently adjust the use state of the protective cover 15.

[0043] The insertion slot 20 is one-to-one corresponding to the delivery pipe 7.

[0044] The insertion slot 20 is one-to-one corresponding to the delivery pipe 7, which reduces the splashing of medicine on the top of the medicine dispensing cylinder 13.

[0045] Working principle: when the anti-splashing chemotherapy medicine dispensing device is used, first, when the medicine storage cylinder 6 is not used, the servo motor 3 is opened to rotate the worm 4, drive the worm gear 5 to rotate, and drive the medicine storage cylinder 6 to rotate synchronously. In order to prevent the medicine liquid from dripping on the inner wall of the delivery pipe 7, the rotating block 8 is operated to move the protective block 9 below the delivery pipe 7, and the first bolt 11 is rotated to be limited by the first nut 10, so that the first bolt 11 slides into the inner wall of the clamping groove 12, thereby reducing the splashing of the medicine liquid.

[0046] Finally, in order to improve the anti-splashing effect of the delivery pipe 7 on the medicine in the medicine dispensing cylinder 13, the second bolt 17 is rotated, the second nut 16 is limited, the second bolt 17 is slid into the receiving groove 18, the protective cover 15 is attached to the top of the medicine dispensing cylinder 13, and the insertion slot 20 is one-to-one attached to the surface of the delivery pipe 7, thereby reducing the splashing of the medicine on the top of the medicine dispensing cylinder 13.

[0047] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A splash guard for a chemotherapy drug dispenser comprising a device body (1) characterised in that: The bottom of the device body (1) is fixedly connected with a control box (2), the outer wall of the control box (2) is fixedly connected with a servo motor (3), the output end of the servo motor (3) is fixedly connected with a worm (4) which is rotatably connected with the inner wall of the control box (2), the outer wall of the worm (4) is engaged with a worm gear (5), the rotation center of the worm gear (5) is fixedly connected with a medicine storage cylinder (6) through a rotating shaft, the outer wall of the medicine storage cylinder (6) is fixedly connected with a conveying pipe (7), the outer wall of the medicine storage cylinder (6) is rotatably connected with a rotating block (8), the outer wall of the rotating block (8) is fixedly connected with a protection block (9), the outer wall of the rotating block (8) is provided with a first nut (10), the inner wall of the first nut (10) is threadedly connected with a first bolt (11) which is slidably connected with the outer wall of the medicine storage cylinder (6), the outer wall of the medicine storage cylinder (6) is provided with a clamping groove (12) at the connecting part of the first bolt (11), and the outer wall of the device body (1) is fixedly connected with a medicine dispensing cylinder (13).

2. A splash guard for a chemotherapy drug dispenser as defined in claim 1, wherein: The outer wall of the medicine dispensing cylinder (13) is slidably connected with a sliding block (14), the top of the sliding block (14) is fixedly connected with a protective cover (15), the outer wall of the sliding block (14) is provided with a second nut (16), the inner wall of the second nut (16) is threadedly connected with a second bolt (17) which is slidably connected with the outer wall of the medicine dispensing cylinder (13), the outer wall of the medicine dispensing cylinder (13) is provided with a receiving groove (18) at the connecting part of the second bolt (17), the outer wall of the medicine dispensing cylinder (13) is provided with an opening groove (19) at the connecting part of the second bolt (17), and the outer wall of the protective cover (15) is provided with a slot (20) at the connecting part of the conveying pipe (7).

3. The splash guard chemotherapy drug dispenser of claim 1, wherein: The medicine storage cylinder (6) is rotatably connected with the device body (1) through the worm (4) and the worm gear (5).

4. The splash guard chemotherapy medication dispenser of claim 1, wherein: The inner wall profile of the rotating block (8) is matched with the outer wall profile of the medicine storage cylinder (6), and the rotating block (8) is clamped with the medicine storage cylinder (6) through the first bolt (11) and the clamping groove (12).

5. The splash guard chemotherapy drug dispenser of claim 1, wherein: The clamping groove (12) is annularly arranged on the outer wall of the medicine storage cylinder (6), and the protection block (9) is arranged on the receiving track of the conveying pipe (7).

6. The splash guard chemotherapy drug dispenser of claim 2, wherein: The sliding block (14) is clamped with the receiving groove (18) through the second nut (16) and the second bolt (17), and the receiving groove (18) and the opening groove (19) are arranged in a linear shape.

7. The splash guard chemotherapy drug dispenser of claim 2, wherein: The slot (20) is one-to-one matched with the conveying pipe (7).