Anti-splashing chemotherapy medicine dispensing device for nursing in blood oncology department

Abstract

The invention relates to the technical field of chemotherapeutic drug dispensing, in particular to an anti-splashing chemotherapeutic drug dispensing device for nursing in the blood oncology department, which comprises a dispensing seat and an open groove, the open groove is formed in the top surface of the dispensing seat, a rotating ring is rotatably mounted on the inner wall of the open groove, and a supporting seat is arranged on the top surface of the rotating ring. A plurality of containing grooves distributed in an annular array mode are symmetrically formed in the top face of the supporting base, and a driving assembly is arranged on the inner side of the open groove. Compared with the prior art, through forward and reverse rotation of the servo motor and cooperation of the one-way teeth and the one-way tooth grooves, the dual functions of rotation and oscillation of the supporting base are achieved, and during forward rotation, the medicine dispensing bottle can smoothly rotate to the position below the filling assembly for medicine filling; and when the medicine dispensing bottle rotates reversely, the medicine dispensing bottle oscillates to ensure that the medicine is uniformly mixed in the bottle, so that the medicine dispensing efficiency is improved, the uniformity of the medicine is ensured, and the treatment effect is favorably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of chemotherapy drug dispensing, and particularly relates to a chemotherapy drug dispenser for preventing splashing in the nursing of hematology oncology department. Background Art

[0002] A chemotherapy drug dispenser is a device used in the medical field to accurately and safely prepare chemotherapy drugs. A chemotherapy drug dispenser is a device specifically designed for preparing chemotherapy drugs. It usually has precise metering, mixing, and dispensing functions to ensure the accuracy and safety of chemotherapy drugs. This device has a wide range of applications in medical fields such as oncology departments.

[0003] After retrieval, a Chinese patent with the publication number CN114870703A discloses a chemotherapy drug dispenser for preventing splashing in the nursing of hematology oncology department, including: a dispensing structure, a dispensing bottle is installed below the dispensing structure, and the dispensing bottles are evenly arranged in four groups on the oscillation structure. At the same time, an intermittent rotation structure is installed at the bottom of the oscillation structure, and a lifting and switching structure is installed on the left side of the intermittent rotation structure. The lifting and switching structure and the intermittent rotation structure are installed inside the frame; the upper end of the measuring cylinder of the dispensing structure is fixedly connected to the flared end, and one end of the measuring cylinder away from the flared end is fixedly connected to the branch pipe. For this chemotherapy drug dispenser for preventing splashing in the nursing of hematology oncology department, the dispensing personnel add liquid medicines with different components into the three measuring cylinders and control the addition amount. Open the manual valve on the branch pipe, and the liquid medicines in the three measuring cylinders are added into the dispensing bottle through the medicine adding pipe. Since the medicine adding pipe is placed inside the dispensing bottle, the liquid medicine will not splash during dispensing. However, when this solution is actually used, there are still the following deficiencies:

[0004] During the drug preparation process, accurately injecting the required drugs into the dispensing bottle through the collecting pipe and the medicine adding pipe is a key step. However, when these two pipes are lifted after completing the drug injection task, due to the adhesiveness of the drugs or the wettability of the inner wall of the pipes, a certain amount of drug residue is likely to adhere to their inner walls. These drugs adhering to the inner wall of the pipes may gradually drip due to gravity, vibration, or other external factors during subsequent operations or pipe movements. If these dripping drugs accidentally fall on the installation disc, it will not only have an adverse impact on the cleanliness of the working environment but also pose a risk of cross-contamination.

[0005] Therefore, the present application provides a chemotherapy drug dispenser for preventing splashing in the nursing of hematology oncology department. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a chemotherapy drug dispenser for preventing splashing in the nursing of hematology oncology department to solve the problem of drug residue dripping in the collecting pipe and the medicine adding pipe.

[0007] For the above purposes, the present invention provides a chemotherapy drug dispenser for preventing splashing in the nursing of hematology oncology department, which includes a dispensing seat and a slot. The slot is opened on the top surface of the dispensing seat. A rotating ring is rotatably installed on the inner wall of the slot. A support seat is arranged on the top surface of the rotating ring. A plurality of placement grooves are symmetrically opened on the top surface of the support seat and are distributed in an annular array. A driving component is arranged inside the slot for driving the rotating ring and the support seat. A fixing plate is fixedly installed at the side position of the top surface of the dispensing seat. A filling component is arranged on the side surface of the fixing plate for filling chemotherapy drugs.

[0008] Preferably, the driving component includes a servo motor fixedly installed on the inner bottom surface of the slot, a connecting rod fixedly installed on the bottom surface of the support seat, and a plurality of installation grooves opened on the top surface of the rotating ring and distributed in an annular array. A first spring is fixedly installed between the inner bottom surface of the installation groove and the bottom surface of the support seat. The output end of the servo motor is fixedly installed with a driving disk. The bottom end of the connecting rod is fixedly installed with a transmission disk. A plurality of one-way teeth are fixedly installed on the top surface of the driving disk and are distributed in an annular array. A plurality of one-way tooth grooves adapted to the one-way teeth are opened on the bottom surface of the transmission disk and are distributed in an annular array. Connecting plates are symmetrically and fixedly installed between the connecting rod and the rotating ring.

[0009] Preferably, the connecting rod, the driving disk, the transmission disk and the servo motor are coaxially arranged.

[0010] Preferably, the filling component includes an electric push rod fixedly installed on the side surface of the fixing plate, a limiting ring fixedly installed on the telescopic end of the electric push rod, and a plurality of dispensing cylinders fixedly installed on the inner wall of the limiting ring and distributed in an annular array. A dispensing pump is arranged directly below the limiting ring through a bracket. A connecting pipe is arranged on the top surface of the dispensing pump. The connecting pipe is communicated with a plurality of the dispensing cylinders through conduits respectively. A liquid outlet pipe is fixedly installed at the liquid outlet end of the dispensing pump. A liquid injection pipe is slidably installed on the inner wall of the liquid outlet pipe. A fixing ring is fixedly installed at the bottom end of the liquid outlet pipe. A sealing cover is arranged at the bottom end of the liquid injection pipe. A second spring is arranged between the top surface of the sealing cover and the bottom surface of the fixing ring.

[0011] Preferably, a filling pipe penetrates through the top surface of the dispensing cylinder, and a sealing rubber pad is arranged on the inner wall of the sealing cover.

[0012] Preferably, a linkage component is arranged on the outer wall of the electric push rod.

[0013] Preferably, the linkage assembly includes a connecting frame fixedly installed at the telescopic end of the electric push rod, a driving rack fixedly installed at the bottom end of the connecting frame, and a transmission shaft rotatably installed on the outer wall of the fixed end of the electric push rod through a fixed frame. One end of the transmission shaft is fixedly installed with a transmission gear, and the transmission gear meshes with the driving rack. The other end of the transmission shaft is fixedly installed with a one-way bearing, and the outer wall of the one-way bearing is fixedly installed with a transmission half gear. The outer wall of the fixed end of the electric push rod is fixedly installed with a guide plate, and a transmission rack is slidably installed on the top surface of the guide plate. The transmission rack meshes with the transmission half gear. A third spring is arranged between the transmission rack and the outer wall of the fixed end of the electric push rod. One end of the transmission rack away from the third spring is fixedly installed with a striking rod.

[0014] Preferably, the striking rod is located at the position of the outer wall of the liquid outlet pipe, and a striking ball is fixedly installed at one end of the striking rod away from the transmission rack.

[0015] Preferably, spring telescopic rods are symmetrically and fixedly installed at the position of the top surface of the medicine dispensing base on the side of the slotted opening. The telescopic ends of the spring telescopic rods are fixedly installed with pressing plates, and a sealing rail is fixedly installed on the bottom surface of the pressing plates. A sliding plate is slidably installed between one ends of the two pressing plates away from the electric push rod.

[0016] Preferably, the pressing plate is arranged in an arc shape corresponding to the support seat.

[0017] Advantages of the present invention:

[0018] 1. For this chemotherapy drug dispenser for blood oncology nursing with splash prevention, by setting the support seat and the driving assembly, through the forward and reverse rotation of the servo motor and the cooperation of the one-way tooth and the one-way tooth groove, the dual functions of rotation and oscillation of the support seat are achieved. When rotating forward, the medicine dispensing bottle can be smoothly rotated below the filling assembly for medicine filling; when rotating backward, the medicine dispensing bottle oscillates to ensure uniform mixing of the medicine in the bottle. This design not only improves the medicine dispensing efficiency but also ensures the uniformity of the medicine, which helps to improve the treatment effect.

[0019] 2. For this chemotherapy drug dispenser for blood oncology nursing with splash prevention, by setting the fixing plate and the filling assembly, during medicine filling, through the coordinated work of components such as the electric push rod, the sealing cover, the medicine dispensing cylinder, and the medicine dispensing pump, accurate medicine filling is achieved. During the filling process, the sealing cover can closely fit the medicine dispensing bottle mouth to prevent medicine splashing, ensuring the cleanliness of the medicine adding environment and the accurate measurement of the medicine. In addition, the use of the medicine dispensing pump also realizes the rapid filling of the medicine, further improving the work efficiency.

[0020] 3. The splash-proof chemotherapy drug dispenser for blood oncology nursing realizes the rapid knocking of the liquid outlet pipe and the liquid injection pipe through the setting of the linkage component and the cooperation of the electric push rod's elongation and reset and the transmission mechanism after the drug filling is completed. This design not only avoids the pollution caused by the subsequent dripping of liquid droplets, but also ensures the full utilization of the drug and reduces waste. At the same time, the use of the one-way bearing ensures that the knocking action only occurs when the electric push rod elongates, avoiding unnecessary energy consumption and mechanical wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 Schematic diagram of the internal structure of the slot of the present invention;

[0024] Figure 3 Schematic diagram of the partial cross-sectional structure of the medicine dispensing seat of the present invention;

[0025] Figure 4 For the present invention Figure 2 Enlarged structure schematic diagram at A in the present invention;

[0026] Figure 5 Schematic diagram of the electric push rod structure of the present invention;

[0027] Figure 6 Schematic diagram of the medicine dispensing pump structure of the present invention;

[0028] Figure 7 For the present invention Figure 5 Enlarged structure schematic diagram at B in the present invention.

[0029] The labels in the figure are:

[0030] 1. Medicine dispensing base; 2. Groove; 3. Swivel ring; 4. Support base; 5. Placement groove; 61. Servo motor; 62. Connecting rod; 63. Installation groove; 64. First spring; 65. Driving disc; 66. Transmission disc; 67. One-way tooth; 68. One-way tooth groove; 69. Connecting plate; 7. Fixed plate; 81. Electric push rod; 82. Limit ring; 83. Medicine dispensing cylinder; 84. Medicine dispensing pump; 85. Connecting pipe; 86. Conduit; 87. Liquid outlet pipe; 88. Liquid injection pipe; 89. Fixed ring; 810. Sealing cover; 811. Second spring; 812. Filling pipe; 91. Connecting frame; 92. Driving rack; 93. Transmission shaft; 94. Transmission gear; 95. One-way bearing; 96. Transmission half gear; 97. Guide plate; 98. Transmission rack; 99. Third spring; 910. Striking rod; 10. Spring telescopic rod; 11. Pressure plate; 12. Sealing rail; 13. Slide plate. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following further elaborates on the present invention in detail with reference to specific embodiments.

[0032] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0033] Such as Figures 1 to 7As shown in the figure, a splash-proof chemotherapy drug dispenser for blood oncology nursing includes a dispensing base 1 and a slot 2. The slot 2 is opened on the top surface of the dispensing base 1. A rotating ring 3 is rotatably installed on the inner wall of the slot 2. A support base 4 is arranged on the top surface of the rotating ring 3. A number of placement grooves 5 are symmetrically opened on the top surface of the support base 4 and are distributed in an annular array. A driving component is arranged inside the slot 2 for driving the rotating ring 3 and the support base 4. A fixing plate 7 is fixedly installed at the side position of the top surface of the dispensing base 1. A filling component is arranged on the side surface of the fixing plate 7 for filling chemotherapy drugs. On the top surface of the dispensing base 1, spring telescopic rods 10 are symmetrically and fixedly installed at the side position of the slot 2. The telescopic ends of the spring telescopic rods 10 are fixedly installed with pressing plates 11. A sealing rail 12 is fixedly installed on the bottom surface of the pressing plate 11. The pressing plate 11 is set to be an arc corresponding to the support base 4;

[0034] During use, different chemotherapy drugs can be added to the filling component on the fixing plate 7. Subsequently, the dispensing bottle can be placed in the placement groove 5 on the support base 4. Then, the driving component can be activated to drive the rotating ring 3, the support base 4, and the dispensing bottle to rotate, so that the empty dispensing bottle can rotate to the directly below of the filling component. After the filling component is opened, drugs can be added to the dispensing bottle. After the filling is completed, under the action of the driving component, the dispensing bottle can rotate to the directly below of the pressing plate 11, and the bottle mouth can be located inside the sealing rail 12 on the bottom surface of the pressing plate 11. Under the action of the spring telescopic rod 10, the pressing plate 11 can press the dispensing bottle tightly to avoid splashing. When the dispensing bottle rotates into position, the driving component can be activated to run in the reverse direction to drive the support base 4 and the dispensing bottle to oscillate. Under the action of the spring telescopic rod 10, the pressing plate 11 can always press tightly against the bottle mouth of the dispensing bottle during the oscillation of the dispensing bottle to achieve sealing. After the dispensing is completed, the driving component can be activated in the forward direction again to drive the support base 4 and the dispensing bottle to rotate. When the dispensing bottle rotates to the directly below of the sliding plate 13, the sliding plate 13 can be pulled to expose the dispensing bottle, and then the dispensing bottle can be taken out of the placement groove 5 in sequence to complete the drug configuration.

[0035] As Figure 2 , Figure 3 , Figure 4 As shown in the figure, the driving component includes a servo motor 61 fixedly installed on the inner bottom surface of the slot 2, a connecting rod 62 fixedly installed on the bottom surface of the support base 4, and a number of installation grooves 63 opened on the top surface of the rotating ring 3 and distributed in an annular array. A first spring 64 is fixedly installed between the inner bottom surface of the installation groove 63 and the bottom surface of the support base 4. The output end of the servo motor 61 is fixedly installed with a driving disk 65. The bottom end of the connecting rod 62 is fixedly installed with a transmission disk 66. The connecting rod 62, the driving disk 65, the transmission disk 66, and the servo motor 61 are coaxially arranged. A number of one-way teeth 67 are fixedly installed on the top surface of the driving disk 65 in an annular array. A number of one-way tooth grooves 68 adapted to the one-way teeth 67 are opened on the bottom surface of the transmission disk 66 and distributed in an annular array. Connecting plates 69 are symmetrically and fixedly installed between the connecting rod 62 and the rotating ring 3;

[0036] After placing the medicine dispensing bottle, the servo motor 61 can be turned on to rotate forward. When the servo motor 61 rotates forward, it can drive the driving disc 65 to rotate forward. The vertical parts of the one-way teeth 67 and the one-way tooth grooves 68 are opposite in this rotation direction. Therefore, when the driving disc 65 rotates under the combined use of the one-way teeth 67 and the one-way tooth grooves 68, it can drive the transmission disc 66 to rotate. Then, through the connecting rod 62 and the connecting plate 69, the support seat 4 and the rotating ring 3 are driven to rotate, so that the empty medicine dispensing bottle can be rotated to directly below the filling assembly for medicine filling. After all the medicine in the medicine dispensing bottle in the placing groove 5 is filled, the servo motor 61 can be turned on to rotate in reverse. At this time, the inclined surfaces of the one-way teeth 67 and the one-way tooth grooves 68 are opposite. Therefore, when the driving disc 65 rotates, it cannot drive the transmission disc 66 to rotate. The mounting groove 63 on the rotating ring 3 is connected to the support seat 4 through the first spring 64, and then the transmission disc 66 and the support seat 4 can be driven to move reciprocally in the vertical direction, thereby driving the medicine dispensing bottle to oscillate, so that the medicine in the medicine dispensing bottle can be evenly oscillated.

[0037] As Figure 5 、 Figure 6 shown, the filling assembly includes an electric push rod 81 fixedly installed on the side of the fixed plate 7, a limit ring 82 fixedly installed at the telescopic end of the electric push rod 81, and a plurality of medicine dispensing cylinders 83 fixedly installed on the inner wall of the limit ring 82 and distributed in a circular array. A medicine dispensing pump 84 is arranged below the limit ring 82 through a bracket. A connecting pipe 85 is arranged on the top surface of the medicine dispensing pump 84. The connecting pipe 85 is communicated with a plurality of medicine dispensing cylinders 83 through conduits 86 respectively. A liquid outlet pipe 87 is fixedly installed at the liquid outlet end of the medicine dispensing pump 84. A liquid injection pipe 88 is slidably installed on the inner wall of the liquid outlet pipe 87. A fixing ring 89 is fixedly installed at the bottom end of the liquid outlet pipe 87. A sealing cover 810 is arranged at the bottom end of the liquid injection pipe 88. A sealing gasket is arranged on the inner wall of the sealing cover 810. A second spring 811 is arranged between the top surface of the sealing cover 810 and the bottom surface of the fixing ring 89. A filling pipe 812 penetrates through the top surface of the medicine dispensing cylinder 83. A sliding plate 13 is slidably installed between the ends of the two pressing plates 11 away from the electric push rod 81;

[0038] When adding medicine to the medicine dispensing bottle, when the medicine dispensing bottle rotates to directly below the liquid injection tube 88, the electric push rod 81 can be turned on to shorten at this time. When the electric push rod 81 shortens, it can drive the limit ring 82, the medicine dispensing cylinder 83 and the medicine dispensing pump 84 to move downward as a whole. During the downward movement, the sealing cover 810 can first contact the bottle mouth of the medicine dispensing bottle. And as the liquid outlet tube 87 and the liquid injection tube 88 descend, the liquid injection tube 88 can slide along the inner wall of the liquid outlet tube 87, thereby compressing the second spring 811 between the sealing cover 810 and the fixing ring 89, ensuring that the sealing cover 810 can closely fit the bottle mouth of the medicine dispensing bottle, ensuring that the medicine will not splash during the medicine adding process. Then, by turning on the medicine dispensing pump 84, the medicine in the medicine dispensing cylinder 83 can be pumped into the medicine dispensing pump 84 through the conduit 86 and the connecting pipe 85 and discharged into the medicine dispensing bottle along the liquid outlet tube 87 and the liquid injection tube 88.

[0039] As Figure 5 , Figure 7 shown, a linkage assembly is provided on the outer wall of the electric push rod 81. The linkage assembly includes a connecting frame 91 fixedly installed at the telescopic end of the electric push rod 81, a driving rack 92 fixedly installed at the bottom end of the connecting frame 91, and a transmission shaft 93 rotatably installed on the outer wall of the fixed end of the electric push rod 81 through a fixing frame. One end of the transmission shaft 93 is fixedly installed with a transmission gear 94, and the transmission gear 94 meshes with the driving rack 92. The other end of the transmission shaft 93 is fixedly installed with a one-way bearing 95, and a transmission half gear 96 is fixedly installed on the outer wall of the one-way bearing 95. A guide plate 97 is fixedly installed on the outer wall of the fixed end of the electric push rod 81. A transmission rack 98 is slidably installed on the top surface of the guide plate 97. The transmission rack 98 meshes with the transmission half gear 96. A third spring 99 is provided between the transmission rack 98 and the outer wall of the fixed end of the electric push rod 81. One end of the transmission rack 98 away from the third spring 99 is fixedly installed with a striking rod 910. The striking rod 910 is located at the position of the outer wall of the liquid outlet tube 87. A striking ball is fixedly installed at the end of the striking rod 910 away from the transmission rack 98;

[0040] After the drug filling in the dispensing bottle is completed, the electric push rod 81 can be extended and reset. During the extension of the electric push rod 81, the driving rack 92 can be driven to slide through the connecting frame 91. The driving rack 92 meshes with the transmission gear 94, and then the transmission gear 94 can be driven to rotate. When the transmission gear 94 rotates, the transmission shaft 93 can be driven to rotate. Since this rotation direction is the locking direction of the one-way bearing 95, the transmission shaft 93 can drive the transmission half gear 96 to rotate. During the rotation of the transmission half gear 96, the use of the third spring 99 can be cooperated to drive the transmission rack 98 to reciprocate along the guide plate 97, so as to drive the striking rod 910 to reciprocally strike the outer wall of the liquid outlet pipe 87, so that the residual liquid drops in the liquid outlet pipe 87 and the liquid injection pipe 88 can drip, avoiding subsequent dripping pollution. When the electric push rod 81 shortens, at this time, the rotation direction of the transmission shaft 93 is the free direction of the one-way bearing 95, so the transmission half gear 96 cannot be driven to rotate, and then the striking rod 910 remains stationary.

[0041] For the technical solution provided by the present invention, during use, different chemotherapy drugs can be added to the filling component on the fixed plate 7. Subsequently, the dispensing bottle can be placed in the placement groove 5 on the support seat 4, and then the driving component can be started to drive the rotating ring 3, the support seat 4 and the dispensing bottle to rotate, so that the empty dispensing bottle can rotate to the directly below of the filling component. After the filling component is started, drugs can be filled into the dispensing bottle. After the filling is completed, under the action of the driving component, the dispensing bottle can rotate to the directly below of the pressing plate 11, and the bottle mouth can be located inside the sealing rail 12 at the bottom surface of the pressing plate 11. Under the action of the spring telescopic rod 10, the pressing plate 11 can press the dispensing bottle tightly to avoid splashing. When the dispensing bottle rotates into place, the driving component can be started to run in the reverse direction to drive the support seat 4 and the dispensing bottle to oscillate. Under the action of the spring telescopic rod 10, the pressing plate 11 can always be tightly pressed against the bottle mouth of the dispensing bottle during the oscillation of the dispensing bottle to achieve sealing. After the dispensing is completed, the driving component can be started to rotate in the forward direction again to drive the support seat 4 and the dispensing bottle to rotate. When the dispensing bottle rotates to the directly below of the sliding plate 13, the sliding plate 13 can be pulled to expose the dispensing bottle, and then the dispensing bottle can be taken out of the placement groove 5 in sequence to complete the preparation of the drug;

[0042] Specifically, after the dispensing bottle is placed, the servo motor 61 can be turned on to rotate forward. When the servo motor 61 rotates forward, it can drive the driving disk 65 to rotate forward. The vertical parts of the one-way teeth 67 and the one-way tooth grooves 68 are opposite in this rotation direction. Therefore, when the driving disk 65 rotates under the cooperation of the one-way teeth 67 and the one-way tooth grooves 68, it can drive the transmission disk 66 to rotate. Then, through the connecting rod 62 and the connecting plate 69, the support seat 4 and the rotating ring 3 are driven to rotate, so that the empty dispensing bottle can be rotated to the directly below of the filling assembly for drug filling. After all the drugs in the dispensing bottle in the placing groove 5 are filled, the servo motor 61 can be turned on to rotate in reverse. At this time, the inclined surfaces of the one-way teeth 67 and the one-way tooth grooves 68 are opposite. Therefore, when the driving disk 65 rotates, it cannot drive the transmission disk 66 to rotate. The mounting groove 63 on the rotating ring 3 is connected to the support seat 4 through the first spring 64, and then the transmission disk 66 and the support seat 4 can be driven to move reciprocally in the vertical direction, so that the dispensing bottle can be oscillated, making the drugs in the dispensing bottle evenly oscillated;

[0043] When filling the drugs in the dispensing bottle, when the dispensing bottle rotates to the directly below of the liquid injection tube 88, the electric push rod 81 can be turned on to shorten at this time. When the electric push rod 81 shortens, it can drive the limit ring 82, the dispensing cylinder 83 and the dispensing pump 84 to move downward as a whole. During the downward movement, the sealing cover 810 can first contact the bottle mouth of the dispensing bottle. And as the liquid outlet pipe 87 and the liquid injection tube 88 descend, the liquid injection tube 88 can slide along the inner wall of the liquid outlet pipe 87, thereby compressing the second spring 811 between the sealing cover 810 and the fixed ring 89, ensuring that the sealing cover 810 can closely fit the bottle mouth of the dispensing bottle, ensuring that the drugs will not splash during the drug adding process. Then, by turning on the dispensing pump 84, the drugs in the dispensing cylinder 83 can be pumped into the dispensing pump 84 through the catheter 86 and the connecting pipe 85 and discharged into the dispensing bottle along the liquid outlet pipe 87 and the liquid injection tube 88;

[0044] After the drug filling in the dispensing bottle is completed, the electric push rod 81 can be extended and reset. During the extension of the electric push rod 81, the driving rack 92 can be driven to slide through the connecting frame 91. The driving rack 92 meshes with the transmission gear 94, and then the transmission gear 94 can be driven to rotate. When the transmission gear 94 rotates, the transmission shaft 93 can be driven to rotate. Since this rotation direction is the locking direction of the one-way bearing 95, the transmission shaft 93 can drive the transmission half gear 96 to rotate. During the rotation of the transmission half gear 96, the use of the third spring 99 can be cooperated to drive the transmission rack 98 to reciprocate along the guide plate 97, so as to drive the striking rod 910 to reciprocally strike the outer wall of the liquid outlet pipe 87, so that the remaining liquid drops in the liquid outlet pipe 87 and the liquid injection pipe 88 can drip, avoiding subsequent dripping pollution. When the electric push rod 81 shortens, at this time, the rotation direction of the transmission shaft 93 is the free direction of the one-way bearing 95, so the transmission half gear 96 cannot be driven to rotate, and thus the striking rod 910 remains stationary.

[0045] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0046] Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A splash-proof chemotherapy drug dispenser for nursing in hematology and oncology departments, characterized in that: The invention comprises a medicine dispensing seat (1) and a slot (2), wherein the slot (2) is provided on the top surface of the medicine dispensing seat (1), a rotating ring (3) is rotatably mounted on the inner wall of the slot (2), a supporting seat (4) is provided on the top surface of the rotating ring (3), a plurality of placement slots (5) distributed in a circular array are symmetrically provided on the top surface of the supporting seat (4), a driving assembly is provided on the inner side of the slot (2) for driving the rotating ring (3) and the supporting seat (4), a fixing plate (7) is fixedly mounted on the side edge of the top surface of the medicine dispensing seat (1), and a filling assembly is provided on the side surface of the fixing plate (7) for filling chemotherapy drugs.

2. A splash-proof chemotherapy drug dispenser for nursing in hematology and oncology department according to claim 1, characterized in that: The driving assembly comprises a servo motor (61) fixedly mounted on the inner bottom surface of the slot (2), a connecting rod (62) fixedly mounted on the bottom surface of the support seat (4), and a plurality of mounting grooves (63) arranged in an annular array on the top surface of the rotating ring (3); a spring (64) is fixedly mounted between the inner bottom surface of the mounting groove (63) and the bottom surface of the support seat (4); a driving disk (65) is fixedly mounted on the output end of the servo motor (61); a transmission disk (66) is fixedly mounted on the bottom end of the connecting rod (62); a plurality of one-way teeth (67) arranged in an annular array are fixedly mounted on the top surface of the driving disk (65); a plurality of one-way tooth grooves (68) arranged in an annular array and adapted to the one-way teeth (67) are arranged on the bottom surface of the transmission disk (66); and a connecting plate (69) is symmetrically fixedly mounted between the connecting rod (62) and the rotating ring (3).

3. A splash-proof chemotherapy drug dispenser for nursing in hematology and oncology department according to claim 2, characterized in that: The connecting rod (62), the driving disc (65), the transmission disc (66) and the servo motor (61) are coaxially arranged.

4. The splash-proof chemotherapy drug dispenser for hematology and oncology nursing according to claim 1, characterized in that: The filling assembly comprises an electric push rod (81) fixedly mounted on the side of the fixed plate (7), a limit ring (82) fixedly mounted on the telescopic end of the electric push rod (81), and a plurality of dispensing cylinders (83) fixedly mounted on the inner wall of the limit ring (82) and distributed in a ring array, a dispensing pump (84) is arranged directly below the limit ring (82) through a bracket, a connecting pipe (85) is arranged on the top surface of the dispensing pump (84), and the connecting pipe (85) is connected to the plurality of dispensing cylinders (83) The dispensing barrels (83) are connected to each other through a conduit (86); a liquid outlet pipe (87) is fixedly installed at the liquid outlet end of the dispensing pump (84); a liquid injection pipe (88) is slidably installed on the inner wall of the liquid outlet pipe (87); a fixing ring (89) is fixedly installed at the bottom end of the liquid outlet pipe (87); a sealing cover (810) is provided at the bottom end of the liquid injection pipe (88); and a spring 2 (811) is provided between the top surface of the sealing cover (810) and the bottom surface of the fixing ring (89).

5. The splash-proof chemotherapy drug dispenser for hematology and oncology nursing according to claim 4, characterized in that: A filling pipe (812) is provided through the top surface of the drug dispensing cylinder (83), and a sealing rubber pad is provided on the inner wall of the sealing cover (810).

6. The splash-proof chemotherapy drug dispenser for hematology and oncology nursing according to claim 4, characterized in that: The outer wall of the electric push rod (81) is provided with a linkage assembly.

7. The splash-proof chemotherapy drug dispenser for hematology and oncology nursing according to claim 6, characterized in that: The linkage assembly comprises a connecting frame (91) fixedly mounted on the telescopic end of the electric push rod (81), a driving rack (92) fixedly mounted on the bottom end of the connecting frame (91), and a transmission shaft (93) rotatably mounted on the outer wall of the fixed end of the electric push rod (81) via a fixing frame, a transmission gear (94) fixedly mounted on one end of the transmission shaft (93), and the transmission gear (94) meshes with the driving rack (92), and a one-way bearing (95) fixedly mounted on the other end of the transmission shaft (93), and the one-way bearing (95) is fixedly mounted on the other end of the transmission shaft (93). A transmission half gear (96) is fixedly mounted on the outer wall of the bearing (95); a guide plate (97) is fixedly mounted on the outer wall of the fixed end of the electric push rod (81); a transmission rack (98) is slidably mounted on the top surface of the guide plate (97); the transmission rack (98) is meshed with the transmission half gear (96); a spring three (99) is arranged between the transmission rack (98) and the outer wall of the fixed end of the electric push rod (81); and a driving rod (910) is fixedly mounted on one end of the transmission rack (98) away from the spring three (99).

8. The splash-proof chemotherapy drug dispenser for hematology and oncology nursing according to claim 7, characterized in that: The striking rod (910) is located at the outer wall of the liquid outlet pipe (87), and a striking ball is fixedly mounted on one end of the striking rod (910) away from the transmission rack (98).

9. The splash-proof chemotherapy drug dispenser for hematology and oncology nursing according to claim 8, characterized in that: A spring telescopic rod (10) is symmetrically fixedly installed on the top surface of the dispensing seat (1) at the side position of the slot (2), a pressure plate (11) is fixedly installed on the telescopic end of the spring telescopic rod (10), a sealing rail (12) is fixedly installed on the bottom surface of the pressure plate (11), and a slide plate (13) is slidably installed between the ends of the two pressure plates (11) away from the electric push rod (81).

10. The splash-proof chemotherapy drug dispenser for nursing in hematology and oncology department according to claim 9, characterized in that: The pressing plate (11) is arranged in an arc shape corresponding to the supporting seat (4).

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