Dosing device convenient for patient nursing

Abstract

The invention discloses a drug delivery device facilitating patient nursing, and belongs to the technical field of medical nursing drug delivery devices.The drug delivery device comprises an outer shell, the outer shell is arranged to be in an arc shape, a rubber ring is detachably connected to the interior of the outer shell through a connecting mechanism, the rubber ring is elastic and made of medical materials, and a liquid inlet is formed in the rubber ring; the liquid inlet is communicated with a medicine inlet pipe, the medicine inlet pipe is fixedly installed outside the rubber ring, a sealing plug is arranged at the medicine inlet pipe, a plurality of extrusion mechanisms distributed in a circumferential array mode are arranged on the inner side of the outer shell, and the extrusion mechanisms drive extrusion pieces to rotate to apply pressure to the rubber ring so that the rubber ring can deform. By controlling the rotating angle and the rotating speed of the servo motor, the pressure applied to the rubber ring by the extrusion part and the extrusion time can be accurately adjusted, so that the rubber ring deforms in different amounts, the flexible adjustment of the liquid medicine output amount is realized, and the requirements of different patient conditions and physical conditions on the medicine dosage are met.

Description

Technical Field

[0001] This invention relates to the field of medical nursing drug delivery devices, and more particularly to a drug delivery device that facilitates patient care. Background Technology

[0002] A drug delivery device for the care of critically ill patients, with publication number CN213911409U, is disclosed. Specifically, it includes a drug storage cylinder, a fixed cylinder, and a micro motor. The output end of the micro motor is equipped with a rotating shaft, and the surface of the rotating shaft is equipped with a stirring plate. A first suction tube is installed inside the drug storage cylinder. In this drug delivery device for the care of critically ill patients, the drug storage cylinder stores an appropriate amount of medication. Activating the micro motor drives the rotating shaft to rotate, and the stirring plate further agitates the medication inside the storage cylinder. Closing the first valve and opening the second valve, along with pulling the pressure rod, creates negative pressure inside the cylinder. The medication inside the storage cylinder then enters the cylinder through the second suction tube and an L-shaped tube.

[0003] Existing patient care drug delivery devices lack the flexibility to adjust dosages. Different patients have varying degrees of illness and physical conditions, requiring different drug doses. The inability to flexibly adjust dosages can lead to insufficient dosage, failing to effectively control the condition and delaying treatment; or excessive dosage, causing adverse drug reactions or even poisoning, threatening the patient's life. For example, when diabetic patients use insulin, the dosage needs to be precisely adjusted according to blood glucose levels. If the delivery device cannot be flexibly adjusted, blood glucose control will be difficult to achieve. Inappropriate dosages may prevent symptom relief, causing continued pain and reducing quality of life. For example, in pain patients, insufficient analgesic dosage will result in persistent pain, affecting sleep, diet, and daily activities. To address these issues, we propose a drug delivery device that facilitates patient care. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing drug delivery devices for patient care cannot flexibly adjust the dosage, and to propose a drug delivery device that is convenient for patient care.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A drug delivery device for easy patient care includes an outer shell, which is arc-shaped. A rubber ring is detachably connected to the inside of the outer shell via a connecting mechanism. The rubber ring is elastic and made of medical-grade material. An inlet is provided on the rubber ring, and a drug delivery tube is connected to the inlet. The drug delivery tube is fixedly installed outside the rubber ring and equipped with a sealing plug threaded onto the drug delivery tube to seal it. Multiple compression mechanisms arranged in a circumferential array are provided on the inner side of the outer shell. These compression mechanisms apply adjustable pressure to the rubber ring, causing it to deform in varying degrees. A permeable layer for drug penetration is provided on the inner side of the rubber ring.

[0007] Preferably, the connecting mechanism includes a plurality of Velcro straps fixedly connected to the outside of the rubber ring, and the rubber ring is attached to the inside of the outer shell by the Velcro straps.

[0008] Preferably, the extrusion mechanism includes a plurality of extrusion components and a drive component arranged in a circumferential array, wherein the drive component is used to drive the plurality of extrusion components to move.

[0009] Preferably, the extrusion assembly includes a groove formed inside the outer casing, two spaced-apart support plates are disposed in the groove, an extrusion member is disposed between the two support plates, the extrusion member is located inside the groove, the extrusion member has a fan-shaped cross-section, a connecting shaft is fixedly mounted on the extrusion member, the end of the connecting shaft is rotatably mounted on the support plate, one end of the connecting shaft passes through the support plate, and a driven wheel is fixedly mounted on the end of the connecting shaft.

[0010] Preferably, the drive assembly includes an annular ring rotatably mounted on the outer casing, an annular anti-slip ring provided on the inner side of the annular ring, the surface of the anti-slip ring being distributed with anti-slip texture, a plurality of driven wheels located on the inner side of the annular ring, the plurality of driven wheels being driven by frictional force to the annular ring, a gear ring sleeved and fixedly connected to the outer side of the annular ring, a servo motor fixedly mounted on the outer casing, a drive wheel fixedly mounted on the output shaft end of the servo motor, the drive wheel meshing with the gear ring.

[0011] Preferably, a protective cover is fixedly installed on the outer shell, and the protective cover is installed outside the servo motor and the drive wheel.

[0012] Preferably, the protective cover is equipped with a display-type air pressure monitor, and the pressure sensor of the air pressure monitor is located at different positions on the contact surface between the rubber ring and the outer shell.

[0013] Preferably, a plurality of heating strips are fixedly installed on the outer shell, the heating strips pass through the outer shell and extend to the rubber ring, a plurality of heat-conducting blocks are fixedly connected to the outer surface of the rubber ring, the heating strips are in contact with the heat-conducting blocks respectively, and the rubber ring is heat-resistant.

[0014] Preferably, a support base is fixedly connected to the bottom of the outer casing.

[0015] Preferably, both sides of the bottom of the outer casing are connected to columns by screws, and a flexible metal plate is provided at the lower end of the outer casing. The bottom of the two columns is fixedly connected to the top of the flexible metal plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By activating the servo motor, the extrusion mechanism drives the extruder to rotate, applying pressure to the rubber ring and causing it to deform. By controlling the rotation angle and speed of the servo motor, the pressure and extrusion time applied to the rubber ring can be precisely adjusted, resulting in varying degrees of deformation and allowing for flexible adjustment of the drug output to meet the dosage needs of different patients' conditions and physical states. A permeable layer is installed inside the rubber ring. When the rubber ring is compressed, the drug slowly permeates through this layer under pressure, preventing uneven drug delivery and achieving a continuous and stable drug administration process.

[0018] 2. The pressure monitor provides real-time feedback on the pressure changes at the contact surface between the rubber ring and the outer shell, enabling medical staff to accurately monitor the device's operating status and promptly detect any abnormalities, ensuring the safety and accuracy of drug administration. The synergistic effect of the heating strip and the heat-conducting block can evenly adjust the temperature of the drug solution to a suitable range for the human body, not only reducing patient discomfort caused by cold stimulation but also improving penetration efficiency by reducing the viscosity of the drug solution, thus avoiding the risk of blockage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a drug delivery device for convenient patient care proposed in this invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of a drug delivery device for convenient patient care proposed in this invention. Figure 2 ;

[0021] Figure 3 The present invention proposes Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is an explosion diagram of a drug delivery device that facilitates patient care, as proposed in this invention.

[0023] Figure 5 This is a cross-sectional view of the rubber ring in a drug delivery device that facilitates patient care, as proposed in this invention.

[0024] Figure 6This is an exploded view of the drive component, which is convenient for patient care according to the present invention.

[0025] Figure 7 This is an enlarged schematic diagram of a portion of the extrusion component structure proposed in this invention for facilitating patient care.

[0026] In the diagram: 1. Outer shell; 2. Rubber ring; 3. Connecting mechanism; 4. Liquid inlet; 5. Drug inlet tube; 6. Sealing plug; 7. Extrusion mechanism; 8. Velcro; 9. Groove; 10. Support plate; 11. Extruded part; 12. Connecting shaft; 13. Driven wheel; 14. Annular ring; 15. Anti-slip ring; 16. Gear ring; 17. Servo motor; 18. Drive wheel; 19. Protective cover; 20. Air pressure monitor; 21. Heating strip; 22. Heat-conducting block; 23. Support base; 24. Column; 25. Flexible metal plate; 26. Permeable layer. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Example, refer to Figures 1 to 7A drug delivery device for easy patient care includes an outer casing 1, which is arc-shaped. A rubber ring 2 is detachably connected to the inside of the outer casing 1 via a connecting mechanism 3. The rubber ring 2 is elastic and made of medical-grade material. An inlet 4 is provided on the rubber ring 2, and a drug delivery tube 5 is connected to the inlet 4. The drug delivery tube 5 is fixedly installed outside the rubber ring 2 and equipped with a sealing plug 6, which is threaded onto the drug delivery tube 5 and used to seal the drug delivery tube 5. Multiple compression mechanisms 7 arranged in a circumferential array are provided on the inner side of the outer casing 1. The compression mechanisms 7 are used to apply adjustable pressure to the rubber ring 2 and cause different amounts of deformation in the rubber ring 2. A permeable layer 26 for drug permeation is provided on the inner side of the rubber ring 2. The connecting mechanism 3 includes multiple Velcro straps 8 fixedly connected to the outside of the rubber ring 2, and the rubber ring 2 is adhered to the inner side of the outer casing 1 by the Velcro straps 8. The rubber ring 2 can be detachably installed inside the outer casing 1 through the detachable connection of the Velcro 8, which facilitates the replacement, cleaning and maintenance of the damaged rubber ring 2, ensuring the hygiene and normal use of the drug delivery device.

[0031] The extrusion mechanism 7 includes multiple extrusion components and a drive component arranged in a circumferential array. The drive component is used to drive the multiple extrusion components to move. The extrusion component includes a groove 9 formed inside the outer shell 1. Two spaced-apart support plates 10 are arranged in the groove 9. An extrusion member 11 is arranged between the two support plates 10. The extrusion member 11 is located inside the groove 9. The cross-section of the extrusion member 11 is fan-shaped. A connecting shaft 12 is fixedly installed on the extrusion member 11. The end of the connecting shaft 12 is rotatably mounted on the support plate 10. One end of the connecting shaft 12 passes through the support plate 10. A driven wheel 13 is fixedly installed at the end of the connecting shaft 12. The drive assembly includes an annular ring 14 rotatably mounted on the outer casing 1. An annular anti-slip ring 15 is provided on the inner side of the annular ring 14. The surface of the anti-slip ring 15 is distributed with anti-slip texture. Multiple driven wheels 13 are located inside the annular ring 14. The multiple driven wheels 13 are driven by friction to drive the annular ring 14. A gear ring 16 is sleeved and fixedly connected to the outer side of the annular ring 14. A servo motor 17 is fixedly mounted on the outer casing 1. A drive wheel 18 is fixedly mounted on the output shaft end of the servo motor 17. The drive wheel 18 meshes with the gear ring 16.

[0032] The rubber ring 2 is elastic and made of medical-grade material, and its interior is used to store the medication. The medication can be injected into the rubber ring 2 through the inlet 4 and the medication inlet tube 5. The rubber ring 2 can undergo a certain degree of elastic deformation according to the amount of medication injected to accommodate the medication.

[0033] A sealing plug 6 is provided at the inlet tube 5. The sealing plug 6 is threaded onto the inlet tube 5, which can effectively seal the inlet tube 5, prevent leakage of the medicine, and ensure the safety and stability of the medicine during storage.

[0034] When the extrusion mechanism is working, and the dosage needs to be adjusted, the servo motor 17 is activated. The output shaft of the servo motor 17 drives the drive wheel 18 to rotate. Since the drive wheel 18 meshes with the gear ring 16, which is sleeved and fixedly connected to the outside of the annular ring 14, the rotation of the drive wheel 18 will drive the gear ring 16 and the annular ring 14 to rotate. An annular anti-slip ring 15 is provided on the inner side of the annular ring 14. The surface of the anti-slip ring 15 is distributed with anti-slip texture. Multiple driven wheels 13 are located inside the annular ring 14. Through the frictional force between the anti-slip ring 15 and the driven wheels 13, the rotation of the annular ring 14 will drive the multiple driven wheels 13 to rotate synchronously.

[0035] Driven wheel 13 is fixedly mounted on the end of connecting shaft 12, which is rotatably mounted on support plate 10. Extrusion member 11 is fixedly mounted on connecting shaft 12. Rotation of driven wheel 13 will cause connecting shaft 12 and extrusion member 11 to rotate around the axis of connecting shaft 12. Extrusion member 11 is located in groove 9 and has a fan-shaped cross-section. When extrusion member 11 rotates, it will apply pressure to rubber ring 2, causing rubber ring 2 to deform.

[0036] By controlling the rotation angle and speed of the servo motor 17, the pressure and compression time applied by the extruder 11 to the rubber ring 2 can be precisely adjusted, thereby causing different amounts of deformation in the rubber ring 2. Different degrees of deformation in the rubber ring 2 result in different degrees of compression of the internal medication, thus enabling flexible adjustment of the medication output to meet the dosage needs of different patients based on their condition and physical state.

[0037] A permeable layer 26 is provided on the inner side of the rubber ring 2. When the rubber ring 2 is squeezed by the extruder 11, the liquid medicine will slowly permeate and be output through the permeable layer 26 under pressure, so as to achieve a continuous and stable drug delivery process.

[0038] By activating a servo motor, the extrusion mechanism drives the extruder to rotate, applying pressure to the rubber ring and causing it to deform. By controlling the rotation angle and speed of the servo motor, the pressure and extrusion time applied to the rubber ring can be precisely adjusted, resulting in varying degrees of deformation and allowing for flexible adjustment of the drug output to meet the dosage needs of different patients' conditions and physical states. A permeable layer is installed inside the rubber ring. When the rubber ring is compressed, the drug slowly permeates through this layer under pressure, preventing uneven drug delivery and achieving a continuous and stable drug administration process.

[0039] A protective cover 19 is fixedly installed on the outer shell 1, and the protective cover 19 is installed outside the servo motor 17 and the drive wheel 18. A display-type air pressure monitor 20 is installed on the protective cover 19, and the pressure sensor of the air pressure monitor 20 is set at different positions on the contact surface between the rubber ring 2 and the outer shell 1. Multiple heating strips 21 are fixedly installed on the outer shell 1, passing through the outer shell 1 and extending to the rubber ring 2. Multiple heat-conducting blocks 22 are fixedly connected to the outer surface of the rubber ring 2, and the heating strips 21 contact the heat-conducting blocks 22 respectively. The rubber ring 2 is heat-resistant.

[0040] A support base 23 is fixedly connected to the bottom of the outer casing 1. Columns 24 are connected to both sides of the bottom of the outer casing 1 by screws. A flexible metal plate 25 is provided at the lower end of the outer casing 1, and the bottoms of the two columns 24 are fixedly connected to the tops of the flexible metal plate 25.

[0041] The protective cover 19, which is fixedly installed on the outer shell 1, is installed outside the servo motor 17 and the drive wheel 18. Its main function is to protect the servo motor 17 and the drive wheel 18, prevent collisions with external objects, dust contamination, etc., ensure the normal operation of the servo motor 17 and the drive wheel 18, extend their service life, and also improve the safety and reliability of the entire drug delivery device.

[0042] A display-type pressure monitor 20 is installed on the protective cover 19, with pressure sensors positioned at different locations on the contact surface between the rubber ring 2 and the outer shell 1. During drug administration, the squeezing mechanism 7 applies pressure to the rubber ring 2, compressing the drug solution inside. This results in varying pressure changes at the contact surface between the rubber ring 2 and the outer shell 1. The pressure sensors monitor these pressure changes in real time and display the pressure data on the display-type pressure monitor 20. Medical personnel can visually understand the force on the rubber ring 2 based on the displayed pressure data, thereby indirectly determining the operating status of the drug administration device and the drug output, facilitating timely adjustments to drug administration parameters, and ensuring the accuracy and safety of the dosage.

[0043] Multiple heating strips 21, fixedly mounted on the outer casing 1, pass through the outer casing 1 and extend to the rubber ring 2. The heating strips 21 generate heat when energized. By controlling the energization of the heating strips 21, the environment surrounding the rubber ring 2 can be heated. Multiple heat-conducting blocks 22, fixedly connected to the outer surface of the rubber ring 2, contact the heating strips 21 respectively. The heat generated by the heating strips 21 is quickly and evenly transferred to the rubber ring 2 through the heat-conducting blocks 22. Because the rubber ring 2 is heat-resistant and can operate normally within a certain temperature range, the heated rubber ring 2 can change the temperature of the internal medication, allowing the medication to reach a temperature more suitable for patient absorption and improving the efficacy of the medication. Simultaneously, heating can also promote the fluidity of the medication, making it easier for the medication to pass through the permeation layer 26 and ensuring a smooth drug delivery process.

[0044] Support Function: The support base 23 fixedly connected to the bottom of the outer casing 1 provides a stable support foundation for the entire drug delivery device, ensuring that the device remains stable during use and will not easily shake or tip over. The bottom of the uprights 24 connected to the bottom of the outer casing 1 by screws is fixedly connected to the top of the flexible metal plate 25. The flexible metal plate 25 has a certain degree of flexibility and elasticity. When the drug delivery device is subjected to external impact or vibration, the flexible metal plate 25 can deform to a certain extent, playing a role in buffering and shock absorption, reducing the impact of external factors on the internal components of the drug delivery device, protecting the normal operation of the drug delivery device, and also improving the comfort of the patient during use.

[0045] The pressure monitor provides real-time feedback on pressure changes at the contact surface between the rubber ring and the outer shell, enabling medical staff to accurately monitor the device's operating status and promptly detect any abnormalities, ensuring drug administration safety and dosage accuracy. The synergistic effect of the heating strip and the heat-conducting block can evenly adjust the temperature of the drug solution to a suitable range for the human body, not only reducing patient discomfort caused by cold stimulation but also improving penetration efficiency by reducing the viscosity of the drug solution, thus avoiding the risk of blockage.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drug delivery device for convenient patient care, comprising a housing (1), characterized in that, The outer shell (1) is arc-shaped. A rubber ring (2) is detachably connected inside the outer shell (1) via a connecting mechanism (3). The rubber ring (2) is elastic and made of medical material. An inlet (4) is provided on the rubber ring (2). A drug inlet tube (5) is connected to the inlet (4). The drug inlet tube (5) is fixedly installed outside the rubber ring (2). A sealing plug (6) is provided on the drug inlet tube (5). The sealing plug (6) is threaded onto the drug inlet tube (5). The sealing plug (6) is used to seal the drug inlet tube (5). Multiple extrusion mechanisms (7) are arranged in a circumferential array on the inner side of the outer shell (1). The extrusion mechanisms (7) are used to apply adjustable pressure to the rubber ring (2) and cause the rubber ring (2) to deform in different amounts. A permeable layer (26) for permeating the drug solution is provided on the inner side of the rubber ring (2).

2. The drug delivery device for convenient patient care according to claim 1, characterized in that, The connecting mechanism (3) includes a plurality of Velcro straps (8) fixedly connected to the outside of the rubber ring (2), and the rubber ring (2) is attached to the inside of the outer shell (1) by the Velcro straps (8).

3. The drug delivery device for convenient patient care according to claim 1, characterized in that, The extrusion mechanism (7) includes multiple extrusion components and a drive component arranged in a circumferential array. The drive component is used to drive the multiple extrusion components to move.

4. The drug delivery device for convenient patient care according to claim 3, characterized in that, The extrusion assembly includes a groove (9) formed inside the outer shell (1). Two spaced support plates (10) are provided in the groove (9). An extrusion member (11) is provided between the two support plates (10). The extrusion member (11) is located inside the groove (9). The cross-section of the extrusion member (11) is fan-shaped. A connecting shaft (12) is fixedly installed on the extrusion member (11). The end of the connecting shaft (12) is rotatably mounted on the support plate (10). One end of the connecting shaft (12) passes through the support plate (10). A driven wheel (13) is fixedly installed at the end of the connecting shaft (12).

5. The drug delivery device for convenient patient care according to claim 4, characterized in that, The drive assembly includes an annular ring (14) rotatably mounted on the outer shell (1). An annular anti-slip ring (15) is provided on the inner side of the annular ring (14). The surface of the anti-slip ring (15) is distributed with anti-slip texture. A plurality of driven wheels (13) are located inside the annular ring (14). The plurality of driven wheels (13) are driven by friction with the annular ring (14). A gear ring (16) is sleeved and fixedly connected to the outer side of the annular ring (14). A servo motor (17) is fixedly mounted on the outer shell (1). A drive wheel (18) is fixedly mounted on the output shaft end of the servo motor (17). The drive wheel (18) meshes with the gear ring (16).

6. The drug delivery device for convenient patient care according to claim 5, characterized in that, A protective cover (19) is fixedly installed on the outer shell (1), and the protective cover (19) is installed outside the servo motor (17) and the drive wheel (18).

7. A drug delivery device for convenient patient care according to claim 6, characterized in that, A display-type air pressure monitor (20) is installed on the protective cover (19), and the pressure sensor of the air pressure monitor (20) is set at different positions on the contact surface between the rubber ring (2) and the outer shell (1).

8. The drug delivery device for convenient patient care according to claim 1, characterized in that, Multiple heating strips (21) are fixedly installed on the outer shell (1). The heating strips (21) pass through the outer shell (1) and extend to the rubber ring (2). Multiple heat-conducting blocks (22) are fixedly connected to the outer surface of the rubber ring (2). The heating strips (21) are in contact with the heat-conducting blocks (22) respectively. The rubber ring (2) has heat resistance.

9. A drug delivery device for convenient patient care according to claim 1, characterized in that, The bottom of the outer shell (1) is fixedly connected to a support base (23).

10. A drug delivery device for convenient patient care according to claim 9, characterized in that, The bottom sides of the outer shell (1) are connected to columns (24) by screws. A flexible metal plate (25) is provided at the lower end of the outer shell (1). The bottom of the two columns (24) is fixedly connected to the top of the flexible metal plate (25).

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