Portable medicine liquid regulating device

Abstract

The present application relates to the field of medical devices, and discloses a portable medicine liquid regulating device, which comprises an opposite supporting mechanism located on a sleeve frame, a sleeve structure matched with the sleeve frame for parallelly and stably supporting a barrel part of a medicine liquid syringe; a linear traction mechanism located on the sleeve frame, a motor element matched with the sleeve frame for forming automatic suction and synchronous driving thrust for bag puncture; a suction traction mechanism located on the sleeve frame, a guide groove and a guide roller matched with the sleeve frame and a large-diameter screw rod for fixing a piston handle of the syringe and moving the piston handle. By fixing multiple syringe injectors along the stationary clamping piece frame and the opposite supporting mechanism, the stable positioning and uniform stress of the syringe are ensured, and the batch and automation of medicine liquid extraction are realized by parallel operation of the multiple injectors, which helps to improve the overall operation efficiency. The syringe ear wing is embedded into the gap between the clamping pieces, the arc-shaped groove of the opposite pressing block closely contacts the barrel, and the continuous thrust is provided by the reset clasp spring, so that the syringe is in a constant compression state.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a convenient drug solution control device. Background Technology

[0002] Syringes are common medical instruments widely used in the extraction and injection of medications. However, using large-capacity syringes makes aspiration more difficult, requiring nurses to apply considerable force, which can easily injure their hands, causing finger pain, joint damage, and even accidental needle injury. In some departments with high aspiration workloads, nurses may become fatigued or overworked, leading to needle contamination, posing a risk of infection, or rendering the medication unusable. Therefore, it is necessary to design an automated aspiration and injection device to help nurses overcome the adverse effects of repetitive syringe handling, freeing them from mechanical, repetitive labor and allowing them to focus more on patient care and treatment, thus improving the utilization rate of medical resources.

[0003] In the fields of modern medicine and biopharmaceuticals, the efficiency and accuracy of drug extraction are crucial to ensuring treatment efficacy and product quality. However, traditional manual extraction methods are not only labor-intensive but also unstable, easily leading to drug waste and cross-contamination. Drug extraction often requires manual operation, increasing the workload of medical personnel, especially when repeatedly extracting large quantities of drugs, which may also cause skin and joint injuries. Another type of integrated automated drug dispensing device with extraction function contains more components and has a more complex structure. It is mainly used for large-scale drug dispensing and requires the use of specialized consumables. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a convenient liquid medicine control device, which solves the problems of high labor intensity, easy pollution and personnel injury caused by traditional manual methods in current liquid medicine extraction operations, as well as the complex structure and reliance on special consumables of existing automatic devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a convenient medicine liquid control device, comprising: Sleeve frame, used for the combined installation of convenient liquid dispensing equipment structures; The side support frame is located on the sleeve frame and is used to fix the material bag carrying structure for extracting the medicine liquid; The stationary clip is located on the sleeve frame and is used to fit and fix the ear wing part of the medicine syringe, so that one end of the syringe body is fixed. The opposing support mechanism is located on the sleeve frame, and the sleeve structure of the sleeve frame is used to stabilize the body of the drug syringe in parallel. The linear traction mechanism is located on the sleeve frame, and the motor components of the sleeve frame are used to generate synchronous driving thrust for automatic suction and bag insertion; The suction traction mechanism is located on the sleeve frame, and works with the guide groove and guide roller of the sleeve frame as well as the large-diameter screw to fix the piston handle of the syringe and move it. The insertion traction mechanism is located on the sleeve frame, and works with the guide rollers, small-diameter screw and traction pusher of the sleeve frame to control the displacement of the material carrying structure; The material bag carrying mechanism is located on the side support frame, and works with the sleeve frame, the linkage push-pull frame and the side clamp strip to carry the material bag to be drawn liquid; The inclined guide mechanism is located on the sleeve frame and works with the traction pusher to form a control structure that allows the liquid control equipment to tilt synchronously.

[0006] Preferably, the guide groove of the sleeve frame is located at the top of the sleeve frame, while the guide roller is embedded and fixed inside the sleeve frame. Simultaneously, the sleeve structure is located at the top of the sleeve frame, and the motor component is located on the side of the sleeve frame. The side support frame is fixed to one side of the sleeve frame. The stationary clamping frame is fixed at the top of the sleeve frame and positioned between the guide groove and the guide roller. The opposing support mechanism is embedded and movable along the sleeve structure of the sleeve frame. The linear traction mechanism is embedded and movable inside the sleeve frame. The suction traction mechanism displaces along the top of the sleeve frame and engages with the linear traction mechanism. The piercing traction mechanism is located inside the sleeve frame and displaces along the linear traction mechanism. The bag-carrying mechanism displaces along the top of the side support frame and extends into the sleeve frame. The inclined guide mechanism is located at the bottom of the sleeve frame.

[0007] Preferably, the opposing support mechanism includes opposing pressure blocks, which are provided with arc-shaped grooves that are opposite each other and correspond to the syringe body. Meanwhile, an embedded shaft is fixed at the bottom of the opposing pressure block, and the embedded shaft slides along the sleeve structure of the sleeve frame, and a reset spring structure is embedded between it and the inner wall of the sleeve.

[0008] Preferably, the linear traction mechanism includes a large-diameter screw and a small-diameter screw, which are fixed coaxially to each other and rotate along the inside of the sleeve frame. At the same time, the end of the small-diameter screw near the large-diameter screw is a threadless area with a smooth axis.

[0009] Preferably, the suction traction mechanism includes a traction pusher, the center of which is provided with a nut pair structure, which is threaded onto a large-diameter screw through the nut pair structure. The bottom end of the traction pusher is an arc groove structure and slides along the guide roller surface of the sleeve frame. The top of the traction pusher is fixed with a linkage clamping frame, which slides along the top guide groove of the sleeve frame. At the same time, the two clamping surfaces of the linkage clamping frame face the stationary clamping frame.

[0010] Preferably, the insertion traction mechanism includes a linkage push-pull frame, the top of which is fixed with a nut end, which is threaded onto a small-diameter screw, and the bottom of which is fixed with a positioning ring, which slides on the guide roller of the sleeve frame. The side clips are distributed on both sides of the linkage push-pull frame, and a starting push rod is fixed on the side of the linkage push-pull frame near the traction push table, which can contact the traction push table.

[0011] Preferably, the bag carrying mechanism includes an inner nested frame, which slides along the side wall of the side support frame and extends into the sleeve frame. The extended end is provided with a locking strip structure and is fixed to the linkage push-pull frame by engaging with the side locking strip. The outer top of the inner nested frame is fixed with a material-bearing stack, which is composed of a stacked carrying platform.

[0012] Preferably, the inclined guide mechanism includes an inclined support platform, which rotates along the bottom of the sleeve frame, and a guide push plate rotates in the middle of the inclined support platform. The lifting push block can be parallel to the top surface of the inclined support platform. At the same time, the lifting push block fixed at the outer end of the guide push plate extends into the sleeve frame and is placed on the displacement trajectory of the bottom end of the traction push platform.

[0013] Preferably, the large-diameter screw is connected to the output end of the motor component of the sleeve frame via a keyway drive.

[0014] Preferably, the end of the material stacking platform near the opposing support mechanism is fixed with an end bearing plate, and the end bearing plate is provided with a port collar corresponding to the bearing platform.

[0015] This invention provides a convenient medicine liquid control device. It has the following features: The following are beneficial effects: 1. This invention constrains and fixes multiple syringes along a stationary clamping frame and an opposing support mechanism, ensuring stable positioning and uniform force distribution of the syringes. Simultaneously, multiple syringes operate in parallel, enabling batch and automated drug extraction, which helps improve overall operational efficiency. The syringe lugs are embedded in the clamping gaps, and the arc-shaped groove of the opposing pressure block is tightly attached to the syringe body. A reset spring provides continuous thrust, keeping the syringe in a constant compression state, which effectively prevents displacement and loosening of the syringe during the extraction process, ensuring stable assembly and safe operation.

[0016] 2. This invention uses a large-diameter screw driven by a motor to drive a small-diameter screw. By engaging the helical teeth with the end of the nut, the rotational motion is converted into a pushing linear displacement, achieving precise pushing of the material bag and accurate needle insertion. The engagement and disengagement design of the threaded structure effectively achieves automatic switching of motion states, avoiding malfunctions and improving the reliability and stability of control. The inclined guide mechanism is linked with the lifting push block, which can automatically adjust the tilt angle of the equipment according to the displacement of the traction push table, so that the needle is continuously immersed in the medicine liquid, preventing air from entering during the extraction process and ensuring the continuity and accuracy of the medicine extraction process.

[0017] 3. This invention precisely adjusts the displacement distance of the traction pusher by controlling the motor's running time and the number of rotations of the large-diameter screw, thereby controlling the piston handle's pulling length and achieving precise control of the syringe's liquid extraction dosage. This meets the requirements of different syringe specifications and dosages. The reverse drive mechanism ensures the traction pusher and linkage mechanism retract, promoting the safe separation of the material bag and needle. The retraction action of the linkage mechanism achieves smooth switching to prepare for the next batch of extraction tasks through a meshing structure, supporting the automatic continuous operation of the equipment and enhancing the overall automation level of the operation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the main structure of the present invention. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of the main structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the main body of the present invention; Figure 4 This is a schematic diagram of the combined structure of the sleeve frame and the side support frame of the present invention; Figure 5 This is a schematic diagram of the opposing support mechanism of the present invention; Figure 6 This is a schematic diagram of the combined structure of the linear traction mechanism, suction traction mechanism and piercing traction mechanism of the present invention. Figure 7 This is a schematic diagram of the internal structure of the sleeve frame of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the suction and traction mechanism of the present invention; Figure 9 This is a schematic diagram of the internal structure of the sleeve frame of the present invention. Figure 2 ; Figure 10 This is a schematic diagram of the material bag carrying mechanism of the present invention.

[0019] The components include: 1. Sleeve frame; 2. Side support frame; 3. Stationary clamping plate frame; 4. Opposing support mechanism; 5. Linear traction mechanism; 6. Suction traction mechanism; 7. Insertion traction mechanism; 8. Bag carrying mechanism; 9. Inclined guide mechanism; 41. Opposing pressure block; 42. Embedded shaft; 51. Large diameter screw; 52. Small diameter screw; 61. Traction push table; 62. Linkage clamping plate frame; 71. Linkage push-pull frame; 72. Nut end; 73. Positioning ring sleeve; 74. Side retaining strip; 75. Starting push rod; 81. Inner nesting frame; 82. Material support stacking platform; 83. End bearing plate; 91. Inclined bearing platform; 92. Guide push plate; 93. Lifting push block. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see the appendix Figure 1 -Appendix Figure 2 This invention provides a convenient liquid medication control device, including: a sleeve frame 1, used for the assembly of the convenient liquid medication control device structure. The guide groove of the sleeve frame 1 is set on the top of the sleeve frame 1. The sleeve frame 1 forms a linear guide line through the guide groove on its top and the guide roller embedded inside. The guide roller is embedded and fixed inside the sleeve frame 1. At the same time, the sleeve structure is set on the top of the sleeve frame 1, and the motor element is set on the side of the sleeve frame 1. The motor element can generate the rotational torque required for suction. The sleeve frame 1 forms a linear guide track by relying on the guide groove on the top and the guide roller embedded inside. When the motor element starts and outputs rotational power, it guides the internal transmission component to advance smoothly along this route. At the same time, the sleeve structure on its top supports the stable operation of the syringe and the material bag, thereby ensuring that multiple sets of syringes do not shake or deviate when suctioning liquid medication at high speed. Please see the appendix Figure 1 -Appendix Figure 2 The side support frame 2 is located on the sleeve frame 1 and is used to fix the material bag carrying structure for extracting the medicine liquid. The side support frame 2 is fixed on one side of the sleeve frame 1. The side support frame 2 uses its extended cantilever to carry the material bag carrying mechanism 8 to guide the linear displacement of the material bag filled with medicine liquid when it is pushed. Please see the appendix Figure 1 -Appendix Figure 3The stationary clamp 3 is located on the sleeve frame 1 and is used to fit and fix the ear part of the medicine syringe, so that one end of the syringe body is fixed. The stationary clamp 3 is fixed on the top of the sleeve frame 1 and placed between the guide groove and the guide roller of the sleeve frame 1. The stationary clamp 3 uses its own gap to firmly bite the ear part of the syringe, and firmly locks the syringe body between the guide groove and the guide roller of the sleeve frame 1. Please see the appendix Figure 4 -Appendix Figure 5 The opposing support mechanism 4 is located on the sleeve frame 1 and works with the sleeve structure of the sleeve frame 1 to stabilize the body of the liquid syringe. The opposing support mechanism 4 is inserted and moved along the sleeve structure of the sleeve frame 1. The opposing support mechanism 4 slides along the sleeve structure and works with the reset snap ring structure to clamp the syringe body. Please see the appendix Figure 4 -Appendix Figure 5 The opposing support mechanism 4 includes an opposing pressure block 41. The opposing pressure block 41 is provided with an arc-shaped groove that is vertically opposite to the syringe body. The opposing pressure block 41 tightly wraps the outer wall of the syringe with its own arc-shaped groove and retracts along the sleeve structure of the sleeve frame 1 with the embedded shaft 42. At the same time, the bottom of the opposing pressure block 41 is fixed with the embedded shaft 42, and the embedded shaft 42 slides along the sleeve structure of the sleeve frame 1. A reset spring structure is embedded between the embedded shaft 42 and the inner wall of the sleeve. The internal reset spring structure generates strong deformation when squeezed. The continuous reverse elastic force released by the reset spring is used to firmly press the opposing pressure block 41 against the syringe body through the embedded shaft 42.

[0022] Please see the appendix Figure 3 -Appendix Figure 4 The linear traction mechanism 5 is located on the sleeve frame 1 and works with the motor components of the sleeve frame 1 to form a synchronous driving thrust for automatic suction and bag insertion. The linear traction mechanism 5 is embedded and moves along the inside of the sleeve frame 1. Please see the appendix Figure 6 -Appendix Figure 7 The linear traction mechanism 5 includes a large-diameter screw 51 and a small-diameter screw 52. The large-diameter screw 51 and the small-diameter screw 52 are fixed coaxially to each other and rotate along the inside of the sleeve frame 1. The pushing insertion and reverse pulling of the liquid suction state generated by the linear displacement of the equipment are controlled by the coaxial rotation of the large-diameter screw 51 and the small-diameter screw 52. At the same time, the end of the small-diameter screw 52 near the large-diameter screw 51 is a smooth shaft without threads. When the small-diameter screw 52 rotates and pushes the bag to the needle insertion position, the nut end 72 just slides into the smooth shaft without threads at its end, causing the thread driving force to disappear and the bag to stop steadily. Please see the appendix Figure 6 -Appendix Figure 7 The large-diameter screw 51 is connected to the output end of the motor component of the sleeve frame 1 via a keyway drive, and the large-diameter screw 51 and the small-diameter screw 52 are controlled to rotate simultaneously by the motor component.

[0023] Please see the appendix Figure 6 -Appendix Figure 9 The suction traction mechanism 6 is located on the sleeve frame 1. It works with the guide groove and guide roller of the sleeve frame 1 and the large diameter screw 51 to fix the piston handle of the syringe and move it. While the suction traction mechanism 6 moves along the top of the sleeve frame 1, it docks with the linear traction mechanism 5. The suction traction mechanism 6 moves under the helical traction of the large diameter screw 51 and uses the clamping structure at its end to drive the piston handle of the syringe to perform the suction operation. Please see the appendix Figure 7 -Appendix Figure 8 The suction traction mechanism 6 includes a traction pusher 61. The traction pusher 61 has a nut pair structure at its center, which is threaded onto the large-diameter screw 51. The bottom end of the traction pusher 61 has an arc groove structure and slides along the guide roller surface of the sleeve frame 1. The traction pusher 61 uses the nut pair structure at its center to firmly grip the large-diameter screw 51, instantly converting the rotational force of the screw into a backward pulling force. At the same time, the linkage clamping plate 62 at its top closely follows the backward movement, causing the piston handle to form a negative pressure suction effect. The linkage clamping plate 62 is fixed at the top of the traction pusher 61 and slides along the top guide groove of the sleeve frame 1. At the same time, the two clamping surfaces of the linkage clamping plate 62 face the stationary clamping plate 3.

[0024] Please see the appendix Figure 5 -Appendix Figure 6 The piercing traction mechanism 7 is located on the sleeve frame 1 and works with the guide roller, small diameter screw 52 and traction push table 61 of the sleeve frame 1 to control the displacement of the material carrying structure. The piercing traction mechanism 7 is set inside the sleeve frame 1 and moves along the linear traction mechanism 5. Please see the appendix Figure 5 -Appendix Figure 6 The traction mechanism 7 includes a linkage push-pull frame 71. A nut end 72 is fixed at the top of the linkage push-pull frame 71 and threaded onto the small-diameter screw 52. A positioning ring 73 is fixed at the bottom of the linkage push-pull frame 71 and slides on the guide roller of the sleeve frame 1. Side clips 74 are distributed on both sides of the linkage push-pull frame 71. A starting push rod 75 is fixed on the side of the linkage push-pull frame 71 near the traction push table 61 and can contact the traction push table 61. The nut end 72 of the linkage push-pull frame 71, which is displaced at the top, engages with the small-diameter screw 52. At the same time, the positioning ring 73 at the bottom is threaded onto the guide roller. The side clips 74 in the middle pull the bag carrying mechanism 8 forward synchronously. When finally reset, the starting push rod 75 is pushed by the reset traction push table 61, pushing the nut end 72 back to the threaded area.

[0025] Please see the appendix Figure 9 -Appendix Figure 10The bag carrying mechanism 8 is located on the side support frame 2. It works with the sleeve frame 1, the linkage push-pull frame 71 and the side clamping strip 74 to carry the bag of medicine to be drawn. The bag carrying mechanism 8 moves along the top of the side support frame 2 and extends into the sleeve frame 1. The bag carrying mechanism 8, through its tight engagement with the side clamping strip 74, pulls the vertically stacked medicine bags to move back and forth along the side support frame 2 and the sleeve frame 1. Please see the appendix Figure 9 -Appendix Figure 10 The bag carrying mechanism 8 includes an inner nested frame 81, which slides along the side wall of the side support frame 2 and extends into the sleeve frame 1. The extended end is provided with a locking strip structure and is fixed to the linkage push-pull frame 71 by engaging with the side locking strip 74. The outer top of the inner nested frame 81 is fixed with a material-bearing stack 82, which is composed of a stacked carrying platform. Under the force of the side locking strip 74, the inner nested frame 81, along with the top material-bearing stack 82, makes a reciprocating push-pull movement along the track. Please see the appendix Figure 10 The end of the material stacking platform 82 near the opposing support mechanism 4 is fixed with an end bearing plate 83, and the end bearing plate 83 is provided with port collars corresponding to the bearing platform. The end bearing plate 83 at the front end of the material stacking platform 82 uses the densely distributed port collars on its surface to limit the position of the output port of each material bag, so that the material bag can ensure the center of docking at the moment it hits the needle.

[0026] Please see the appendix Figure 7 The inclined guide mechanism 9 is located on the sleeve frame 1 and works with the traction pusher 61 to form a control structure that allows the liquid control equipment to tilt synchronously. The inclined guide mechanism 9 is located at the bottom of the sleeve frame 1. Please see the appendix Figure 7 The inclined guide mechanism 9 includes an inclined support platform 91, which rotates along the bottom of the sleeve frame 1. A guide push plate 92 rotates in the middle of the inclined support platform 91, and a lifting push block 93 can be parallel to the top surface of the inclined support platform 91. At the same time, the lifting push block 93, which is fixed at the outer end of the guide push plate 92, extends into the sleeve frame 1 and is placed on the displacement trajectory at the bottom of the traction push platform 61. When the traction push platform 61 drives the piston handle to move, it will contact the lifting push block 93 on the trajectory, so as to push the lifting push block 93 and the synchronously hinged guide push plate 92 to deflect, thereby pulling the inclined support platform 91 to rotate along the bottom of the sleeve frame 1, so that the side of the device closer to the syringe is raised, thereby ensuring that the needle can be continuously immersed in the liquid medicine while the liquid medicine in the material bag continues to decrease.

[0027] Based on the above technical solution, this invention also provides a working principle for a convenient liquid medication control device, including the following: This device is mainly designed for the automatic liquid medication extraction task of syringes. It relies on the interconnected operation of multiple mechanical components to complete the portable injection and extraction control of multiple syringes. The syringes and the liquid medication-carrying bag are mounted and configured in a general assembly consisting of a sleeve frame 1 and a side support frame 2. Multiple syringes are arranged and assembled in a constraint frame composed of a stationary clamping frame 3 and an opposing support mechanism 4. The ear flaps of the syringes are embedded in the clamping gaps of the stationary clamping frame 3. Simultaneously, the syringe body is subjected to full pressure constraint by the opposing support mechanism 4. The opposing support mechanism 4 is equipped with opposing pressure blocks 41. The syringe features a groove with an arc-shaped profile that fits snugly against the outer skin of the syringe barrel. An embedded shaft 42 is attached to the bottom of the opposing pressure block 41, and the embedded shaft 42 is equipped with a reset spring structure. The reset spring structure deforms and releases the pushing force, transmitting it to the embedded shaft 42. This force pushes the opposing pressure block 41 to continuously apply pressure to the syringe barrel. Through the coordinated pressing of the stationary clamping frame 3 and the opposing support mechanism 4, multiple stacked syringe barrels are maintained in a stationary position. The piston handle of the syringe is fitted into the linkage clamping frame 62, whose two clamping surfaces are opposite each other, tightly clamping and retracting the piston handle. The linkage clamping frame 62 is attached to the traction pusher 61, together forming a... The suction traction mechanism 6 has a piston handle that moves with it, receiving driving power at any time. The bag containing the liquid to be extracted is placed in the receiving area of ​​the bag carrying mechanism 8. The bag carrying mechanism 8 is equipped with an inner nesting frame 81, which has a locking strip structure. The traction mechanism 7 is equipped with a linkage push-pull frame 71, which has side locking strips 74. The locking strip structure of the inner nesting frame 81 and the side locking strips 74 are tightly engaged and locked. The inner nesting frame 81 is mounted on the material stacking platform 82, which is composed of multiple stacked carrying platforms. Numerous bags containing liquid are placed one by one on the surface of the carrying platform 82 in a longitudinally stacked manner. The end bearing plates 83 required for the bags are equipped with corresponding end collars. The suction ports of multiple stacked material bags are inserted through the port collars of the end support plate 83. The port collars provide directional constraint, limiting the suction ports of the material bags to face the syringe needle. The control unit sends commands to activate the motor components configured in the sleeve frame 1. The rotational power of the motor component's output shaft directly drives the large-diameter screw 51 to rotate synchronously. The large-diameter screw 51 and the small-diameter screw 52 maintain a coaxial connection. While the large-diameter screw 51 rotates, it leads the small-diameter screw 52 to perform rotational movements of the same frequency and direction. The surface of the small-diameter screw 52 is engraved with helical teeth. The small-diameter screw 52 is inserted and sleeved on the nut end 72. When the small-diameter screw 52 rotates, the surface thread teeth and the internal thread included in the nut end 72 create a helical push.This meshing transmission mechanism converts the rotational power of the small-diameter screw 52 into a linear displacement traction force for pushing the end 72 of the nut pair. Driven by this force, the nut pair end 72 causes the linkage push-pull frame 71 to extend unidirectionally along the small-diameter screw 52. The positioning ring 73 is fitted onto the surface of the guide rollers on the sleeve frame 1. During the unidirectional displacement of the linkage push-pull frame 71, the positioning ring 73 continues to slide along the surface of the guide rollers on the sleeve frame 1. The linkage push-pull frame 71, with the aid of the side clips 74, pulls the inner nested frame 81 to perform synchronous linear displacement. The displacement of the inner nested frame 81 immediately pulls the material support platform 82 and the end bearing plate 83 to move together. The material bags resting on the material support platform 82 and the end bearing plate 83 collectively undergo linear displacement towards the syringe needle. Continuous displacement causes the suction port to fully contact the syringe needle. The syringe needle pierces the suction port of the material bag, achieving a docking and connection state. Upon completion of the piercing, the nut end 72 is precisely pushed by the thread of the small-diameter screw 52 into the threadless area of ​​the smooth axis contained in the small-diameter screw 52. The surface of the threadless area of ​​the smooth axis is smooth and without helical teeth. The internal thread of the nut end 72 completely loses docking with the surface of the small-diameter screw 52. Although the small-diameter screw 52 continues to rotate, the rotational power cannot be converted into linear thrust transmitted to the nut end 72. The nut end 72, having lost its traction thrust, stops all displacement. The stillness of the nut end 72 triggers the linkage push-pull frame 71 to stop displacement. The linkage push-pull frame 71 controls the inner nested frame 81 and the material support platform 8 through the side clamp 74. 2. The entire material bag enters a stationary state, maintaining its position in contact with the needle insertion point. During this period, the motor continuously supplies rotational drive, driving the large-diameter screw 51 to maintain rotation. The large-diameter screw 51 passes through the central nut assembly of the traction pusher 61. The helical teeth on the surface of the large-diameter screw 51 tightly engage with the central nut assembly of the traction pusher 61. The continuous rotation of the large-diameter screw 51 is converted into a linear traction force dragging the traction pusher 61. The traction pusher 61 has an arc groove structure. When displacement occurs under force, the arc groove structure continuously slides along the surface of the guide rollers configured on the sleeve frame 1. The traction pusher 61 pulls the linkage clamp frame 62 to move together. The linkage clamp frame 62 clamps the syringe piston handle, and the displacement of the linkage clamp frame 62 is forced. Pulling the piston handle along the syringe barrel's tubing performs a stretching and retracting action. The piston handle moves outward within the syringe barrel, significantly altering the volume of the sealed area inside the syringe. This creates a suction negative pressure inside the syringe. Under the influence of this negative pressure, the liquid medicine loaded in the material bag is automatically drawn into the syringe barrel through the inserted needle. The operating commands control the operating time of the motor components and the number of rotations of the large-diameter screw 51. The number of rotations of the large-diameter screw 51 determines the linear distance the traction pusher 61 slides, and the sliding distance of the traction pusher 61 determines the piston handle's pulling length. Based on this, the dosage of liquid medicine extracted is adjusted for different syringe configurations. During the stage where the traction pusher 61 moves to pull the piston handle and generate suction force, the movement profile of the traction pusher 61 will interfere with the arrangement area of ​​the inclined guide mechanism 9.The displacement profile of the traction pusher 61 gradually contacts the lifting pusher 93 included in the inclined guide mechanism 9. The traction pusher 61 moves in a straight line, pushing the lifting pusher 93. The lifting pusher 93 is squeezed and generates an action, transmitting the pushing force to the guide pusher 92 to unfold it. As the guide pusher 92 unfolds, the inclined support platform 91 rotates along the sleeve frame 1. The action of the inclined support platform 91 causes the entire liquid control device to tilt. The tilt adjustment action is synchronized with the liquid aspiration process, so that the needle can remain in the liquid during continuous aspiration. When the aspiration task is completed, the motor components start to rotate in the reverse direction. The signal triggers the motor component output shaft to begin rotating in the opposite direction. This reverse rotation forces the large-diameter screw 51 and the small-diameter screw 52 to synchronously rotate in the opposite direction. The reverse rotation of the large-diameter screw 51 interacts with the nut pair structure at the center of the traction push table 61 to generate a reverse transmission force. This transmission force drives the traction push table 61 to change its displacement path and perform a retraction displacement. The traction push table 61, carrying the linkage clamp frame 62, retracts simultaneously. During the retraction displacement process, the distance between the traction push table 61 and the linkage push-pull frame 71 is continuously shortened. When the traction push table 61 retracts to a specific node, the outline of the traction push table 61 collides. The starting push rod 75 of the linkage push-pull bracket 71 is forcefully pushed by the traction push table 61 using its retraction power. The starting push rod 75, under pressure, causes the linkage push-pull bracket 71 to overcome its initial static inertia and move backward in the direction of the traction push table 61's push. This backward displacement of the linkage push-pull bracket 71 forcibly pulls the nut end 72 along the surface of the small-diameter screw 52. The nut end 72 disengages from the threadless area of ​​the small-diameter screw 52 and slides into the area of ​​the small-diameter screw 52 with helical teeth. The internal thread of the nut end 72 then interacts with the helical teeth of the small-diameter screw 52. Upon initial engagement and transmission, the spiral thrust carried by the reverse-rotating small-diameter screw 52 directly acts on the nut end 72. The small-diameter screw 52, ​​through thread engagement, drives the nut end 72 to retract. The retraction of the nut end 72 simultaneously pulls the linkage push-pull frame 71 back. The linkage push-pull frame 71, with the aid of the side retaining strip 74, pulls the inner nested frame 81, the material support platform 82, the end bearing plate 83, and the supporting structure of the empty material bag to perform a retraction displacement. The material bag gradually moves away from the syringe needle, causing the material bag suction port to gradually separate from the syringe needle, awaiting the next batch of syringe suction operations.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convenient medicine liquid control device, characterized in that, include: Sleeve frame (1) is used for the combined installation of a convenient liquid control equipment structure; The side support frame (2) is located on the sleeve frame (1) and is used to fix the material bag carrying structure for the liquid to be extracted; The stationary clip (3) is located on the sleeve frame (1) and is used to fit and fix the ear wing part of the medicine syringe so that one end of the syringe body is fixed. The opposing support mechanism (4) is located on the sleeve frame (1) and works with the sleeve structure of the sleeve frame (1) to stabilize the body of the drug syringe in parallel. The linear traction mechanism (5) is located on the sleeve frame (1) and works with the motor components of the sleeve frame (1) to generate a synchronous driving thrust for automatic suction and bag insertion. The suction traction mechanism (6) is located on the sleeve frame (1), and works with the guide groove and guide roller of the sleeve frame (1) and the large diameter screw (51) to fix the piston handle of the syringe and move it. The piercing traction mechanism (7) is located on the sleeve frame (1) and works with the guide roller, small diameter screw (52) and traction pusher (61) of the sleeve frame (1) to control the displacement of the material carrying structure; The bag carrying mechanism (8) is located on the side support frame (2) and works with the sleeve frame (1), the linkage push-pull frame (71) and the side clip (74) to carry the bag of medicine to be drawn; The inclined guide mechanism (9) is located on the sleeve frame (1) and works with the traction pusher (61) to form a control structure that allows the liquid control equipment to tilt synchronously.

2. The convenient liquid medicine control device according to claim 1, characterized in that, The guide groove of the sleeve frame (1) is set on the top of the sleeve frame (1), and the guide roller is embedded and fixed inside the sleeve frame (1). At the same time, the sleeve structure is set on the top of the sleeve frame (1), and the motor component is set on the side of the sleeve frame (1). The side support frame (2) is fixed on one side of the sleeve frame (1). The stationary clamping frame (3) is fixed on the top of the sleeve frame (1) and placed between the guide groove and the guide roller of the sleeve frame (1). The opposing support mechanism (4) runs along the sleeve structure of the sleeve frame (1). The linear traction mechanism (5) is embedded in the sleeve frame (1), while the suction traction mechanism (6) displaces along the top of the sleeve frame (1) and docks with the linear traction mechanism (5). The piercing traction mechanism (7) is located inside the sleeve frame (1) and displaces along the linear traction mechanism (5). The bag carrying mechanism (8) displaces along the top of the side support frame (2) and extends into the sleeve frame (1). The inclined guide mechanism (9) is located at the bottom of the sleeve frame (1).

3. The convenient liquid medicine control device according to claim 1, characterized in that, The opposing support mechanism (4) includes opposing pressure blocks (41). The opposing pressure blocks (41) are provided with arc grooves that are opposite to each other and correspond to the syringe body. At the same time, an embedded shaft (42) is fixed at the bottom of the opposing pressure blocks (41). The embedded shaft (42) slides along the sleeve structure of the sleeve frame (1) and a reset spring structure is embedded between it and the inner wall of the sleeve.

4. The convenient liquid medicine control device according to claim 1, characterized in that, The linear traction mechanism (5) includes a large-diameter screw (51) and a small-diameter screw (52). The large-diameter screw (51) and the small-diameter screw (52) are fixed coaxially to each other and rotate along the inside of the sleeve frame (1). At the same time, the end of the small-diameter screw (52) near the large-diameter screw (51) is a smooth axis without threads.

5. The convenient liquid medicine control device according to claim 1, characterized in that, The suction traction mechanism (6) includes a traction pusher (61). The traction pusher (61) has a nut pair structure at its center and is threaded onto a large-diameter screw (51) through the nut pair structure. The bottom end of the traction pusher (61) is an arc groove structure and slides along the guide roller surface of the sleeve frame (1). The top of the traction pusher (61) is fixed with a linkage clamping frame (62), and the linkage clamping frame (62) slides along the top guide groove of the sleeve frame (1). At the same time, the two sides of the linkage clamping frame (62) face the stationary clamping frame (3).

6. The convenient liquid medicine control device according to claim 1, characterized in that, The piercing traction mechanism (7) includes a linkage push-pull frame (71), the top of which is fixed with a nut end (72), and the nut end (72) is threaded onto a small diameter screw (52). The bottom of the linkage push-pull frame (71) is fixed with a positioning ring (73), and the positioning ring (73) slides on the guide roller of the sleeve frame (1). The side clips (74) are distributed on both sides of the linkage push-pull frame (71), and a starting push rod (75) is fixed on the side of the linkage push-pull frame (71) near the traction push table (61), and can contact the traction push table (61).

7. The convenient liquid medicine control device according to claim 1, characterized in that, The bag carrying mechanism (8) includes an inner nested frame (81), which slides along the side wall of the side support frame (2) and extends into the sleeve frame (1). The extended end is provided with a locking strip structure and is fixed to the linkage push-pull frame (71) by engaging with the side locking strip (74). The outer top of the inner nested frame (81) is fixed with a material stacking platform (82), which is composed of a stacked carrying platform.

8. A convenient liquid medicine control device according to claim 1, characterized in that, The inclined guide mechanism (9) includes an inclined support platform (91), which rotates along the bottom of the sleeve frame (1). A guide push plate (92) rotates in the middle of the inclined support platform (91), and a lifting push block (93) can be parallel to the top surface of the inclined support platform (91). At the same time, the lifting push block (93) fixed at the outer end of the guide push plate (92) extends into the sleeve frame (1) and is placed on the displacement trajectory at the bottom of the traction push platform (61).

9. A convenient liquid medicine control device according to claim 4, characterized in that, The large-diameter screw (51) is connected to the output end of the motor component of the sleeve frame (1) via a keyway drive.

10. A convenient liquid medicine control device according to claim 7, characterized in that, The material stacking platform (82) is fixed with an end bearing plate (83) at one end near the opposing support mechanism (4), and the end bearing plate (83) is provided with a port collar corresponding to the bearing platform.

Images