An infusion set that is directional and convenient for replacement

Abstract

The present invention relates to the technical field of infusion sets, and specifically, to an infusion set that is directionally convenient for replacement. It includes: a liquid cavity and a placement cavity are provided inside the connection frame, the placement cavity is located above the liquid cavity, a through groove is opened at the bottom of the liquid cavity, and an infusion tube is fixedly connected to the bottom of the through groove; an airbag ring is fixedly installed between the placement cavity and the liquid cavity, and an inflation driving assembly for expanding and clamping the liquid outlet of the infusion bottle is communicated with the outer wall of the airbag ring; an elastic gathering mechanism is rotatably arranged at the edge of the connection frame. The present invention inputs into the human body along the through groove and the infusion tube, avoiding the plug from extending into the interior of the infusion bottle to contaminate the medicine, and the elastic gathering mechanism gathers inward to clamp and fix the outer wall of the infusion bottle again; when facing an infusion bottle with a smaller size, the elastic gathering mechanism rotates and opens outward, so that the elastic gathering mechanism restricts the elastic force generated by the airbag ring squeezing the inflation driving assembly from causing air leakage and improves the fixing strength.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion sets, and more specifically, to an infusion set that is directionally convenient for replacement. Background Art

[0002] An infusion set, or an infusion pump, as the name implies, is a medical device for infusion. The traditional infusion method is to hang the liquid in a bottle or an infusion bag at a high place, and use the action of gravity to make the liquid flow into the vein through the infusion tube. The size of the flow rate is manually adjusted by a clip placed on the tube, and the adjustment index is to look at the drip rate in the drip tube.

[0003] Currently, when in use, the infusion set is connected by inserting the syringe on the infusion set into the end of the infusion bag, so that the medicinal liquid can be intravenously infused into the blood vessel through the infusion tube along the needle. However, inserting the syringe into the infusion bag not only easily causes the debris at the end of the infusion bag to come into contact with the medicinal agent as the syringe goes deeper, affecting the quality of the medicinal agent. At the same time, the fixing effect of the syringe and the infusion bag is limited. If the patient or the patient's family accidentally pulls the infusion tube, it is easy for the syringe to fall off from the end of the infusion bag. Moreover, when separating the infusion bag and the infusion set for replacement, it is necessary to pull the infusion set and the infusion bag forcefully. If the infusion tube of the infusion set is pulled, it is easy to cause deformation and damage, affecting subsequent use. In view of this, we propose an infusion set that is directionally convenient for replacement. Summary of the Invention

[0004] The purpose of the present invention is to provide an infusion set that is directionally convenient for replacement to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides an infusion set that is directionally convenient for replacement, which at least includes:

[0006] A connection frame, a liquid cavity and a placement cavity are provided in the inner cavity of the connection frame. The placement cavity is located above the liquid cavity. A through groove is opened at the bottom of the liquid cavity, and an infusion tube is fixedly connected to the bottom of the through groove.

[0007] An airbag ring, the airbag ring is fixedly installed between the placement cavity and the liquid cavity, and an inflation driving assembly for expanding and clamping the liquid outlet of the infusion bottle is communicated with the outer wall of the airbag ring.

[0008] An elastic gathering mechanism, the elastic gathering mechanism is rotatably arranged at the edge of the connection frame. When the elastic gathering mechanism rotates inwards, it is used to clamp the body of the infusion bottle in the placement cavity. When the elastic gathering mechanism rotates outwards, it is used to squeeze and limit the inflation and deflation operations of the inflation driving assembly.

[0009] As a further improvement of the technical solution, the liquid cavity has a conical shell structure. The inside of the liquid cavity is used to accommodate the liquid outlet end of the infusion bottle, and the inner diameter of the liquid cavity decreases from top to bottom and is communicated with the through groove.

[0010] As a further improvement of the technical solution, the inflation driving assembly at least includes a through shell fixed to the outer wall of the connecting frame. The inside of the through shell is communicated with the airbag ring through a pipeline, and a piston plate is slidably arranged inside the through shell. The outer wall of the piston plate is hermetically and slidably adapted to the inside of the through shell.

[0011] As a further improvement of the technical solution, a chute is opened on the inner wall of the through shell. A transmission lead screw is rotatably arranged inside the chute. The outer wall of the transmission lead screw is in threaded engagement with the edge of the piston plate. A turntable is rotatably arranged on the outer wall of the through shell. The end of the turntable extends into the inside of the chute, and there are two bevel gears vertically meshed between the end of the turntable and the end of the transmission lead screw.

[0012] As a further improvement of the technical solution, the elastic gathering mechanism at least includes a plurality of movable parts arranged at the top edge of the connecting frame. A movable block is fixedly connected to the top of the movable part, and a gathering rod is movably connected to the outer wall of the movable block.

[0013] As a further improvement of the technical solution, a shaft rod is fixedly connected to the slot at the bottom of the gathering rod. The shaft rod movably penetrates through the movable block, and an elastic part is fixedly connected between the end of the shaft rod and the outer wall of the movable block. The elastic part is used to generate a resilience force to make the gathering rod gather inward.

[0014] As a further improvement of the technical solution, a rotating rod is fixedly connected to the bottom of the movable part, and the bottom of the rotating rod is rotatably connected to the top edge of the connecting frame.

[0015] As a further improvement of the technical solution, a rotating fork is arranged on the inner surface of the gathering rod. A rotating block is rotatably arranged inside the rotating fork. A fitting plate is fixedly connected to the outer wall of the rotating block, and the inner wall of the fitting plate has an arc-shaped structure.

[0016] As a further improvement of the technical solution, a contact shell is arranged at the upper end of the gathering rod. A ball is movably connected inside the contact shell, and the ball is used to roll and fit the outer wall of the infusion bottle.

[0017] Compared with the prior art, the beneficial effects of the present invention:

[0018] 1. In the orientable and replaceable infusion set, the infusion bottle is inserted into the interior of the liquid chamber through the lower end of the infusion bottle. The infusion bottle is in communication with the liquid chamber, enabling the airbag ring to be inflated through the inflation driving component to clamp the outer wall of the infusion bottle. The medicament is poured from the infusion bottle into the interior of the liquid chamber and then enters the human body along the through groove and the infusion tube, avoiding the plug from reaching into the interior of the infusion bottle and contaminating the medicament.

[0019] 2. In the orientable and replaceable infusion set, when facing a relatively large infusion bottle, it is clamped again by the elastic gathering mechanism to fix the outer wall of the infusion bottle, preventing the infusion bottle from tipping and shaking, improving the stability of installation, and ensuring the stability of the connection between the interior of the infusion bottle and the liquid chamber.

[0020] When facing a relatively small infusion bottle, the inflation driving component inflates the airbag ring to improve the clamping effect on the infusion bottle. And the elastic gathering mechanism rotates and opens outward, restricting the elastic force generated by the airbag ring squeezing the inflation driving component from causing air leakage, thereby improving the fixing strength.

[0021] 3. In the orientable and replaceable infusion set, the gas in the airbag ring is led out by the inflation driving component, increasing the internal space size of the airbag ring, facilitating the installation and disassembly of the infusion bottle. At the same time, by rotating the elastic gathering mechanism, it can be moved away from the outer wall of the infusion bottle, making it convenient to pick up and place the infusion bottle.

[0022] 4. In the orientable and replaceable infusion set, the arc-shaped cooperation between the fitting plate and the outer wall of the infusion bottle is realized. While the end of the gathering rod fits the infusion bottle for clamping, the fitting plate can also limit and fix the infusion bottle, improving the fixing effect.

[0023] Moreover, when the gathering rod rotates outward, it drives the fitting plate to rotate outward. The rotating block rotates inside the rotating fork, making the fitting plate form an arc-shaped support, facilitating the more stable placement of the connecting frame on the table, improving the subsequent placement effect, and avoiding contamination caused by rolling and falling during placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall structure assembly schematic diagram of the present invention;

[0025] Figure 2 It is the internal sectional view of the overall structure of the present invention;

[0026] Figure 3 It is the sectional view of the connecting frame structure of the present invention;

[0027] Figure 4 It is of the present invention Figure 2 Schematic diagram of the structure at position A;

[0028] Figure 5Schematic diagram of the structural decomposition of the elastic gathering mechanism of the present invention;

[0029] Figure 6 of the present invention Figure 5 Schematic diagram of the structure at position B;

[0030] Figure 7 Assembly schematic diagram of the rotation process of the gathering rod of the present invention;

[0031] Figure 8 of the present invention Figure 5 Schematic diagram of the structure at position C.

[0032] The meanings of each label in the figure are as follows:

[0033] 100, connecting frame;

[0034] 110, liquid cavity; 111, through groove; 120, infusion tube; 130, placement cavity;

[0035] 200, airbag ring;

[0036] 210, inflation driving assembly; 211, through shell; 2110, chute; 212, piston plate; 213, transmission lead screw; 214, turntable; 215, bevel gear;

[0037] 300, elastic gathering mechanism;

[0038] 310, gathering rod; 311, shaft rod; 312, elastic member; 313, contact housing; 314, ball; 320, movable member; 321, movable block; 322, rotating rod; 330, fitting plate; 331, rotating block; 332, rotating fork. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] An infusion device, or an infusion pump, as the name implies, is a medical device for infusion. The traditional infusion method is to hang the liquid in a bottle or an infusion bag at a high place and use the action of gravity to make the liquid flow into the vein through an infusion tube. The size of the flow rate is manually adjusted by a clip placed on the tube, and the adjustment index is to look at the drip rate in the drip chamber. Please refer to Figures 1-8 As shown, this embodiment provides an infusion device that is convenient for directional replacement and at least includes:

[0041] A connecting frame 100, wherein the inner cavity of the connecting frame 100 is provided with a liquid cavity 110 and a placement cavity 130, wherein the placement cavity 130 is located above the liquid cavity 110, a through groove 111 is provided at the bottom of the liquid cavity 110, and a liquid infusion tube 120 is fixedly connected to the bottom of the through groove 111;

[0042] The airbag ring 200 is fixedly installed between the placement cavity 130 and the liquid cavity 110, and the outer wall of the airbag ring 200 is connected to an inflation drive assembly 210 for inflating and clamping the liquid outlet of the infusion bottle;

[0043] The elastic gathering mechanism 300 is rotatably arranged at the edge of the connecting frame 100. When the elastic gathering mechanism 300 is rotated inward, it is used to clamp the body of the infusion bottle in the placement cavity 130. When the elastic gathering mechanism 300 is rotated outward, it is used to squeeze and limit the inflation and deflation operations of the inflation drive assembly 210.

[0044] like Figures 1-2 As shown, the present invention takes into account that when the current infusion device is used, the needle tube on the infusion device is inserted into the end of the infusion bag for communication, so that the medicine can be injected into the blood vessel through the needle vein along the infusion tube 120. However, inserting the infusion bag through the needle tube not only easily causes the debris at the end of the infusion bag to contact the medicine as the needle tube goes deeper, affecting the quality of the medicine, therefore, the lower end of the infusion bottle is inserted into the liquid cavity 110, the infusion bottle and the liquid cavity 110 are in a connected state, so that the airbag ring 200 completes the inflation operation through the inflation drive assembly 210, clamps the outer wall of the infusion bottle, and the liquid outlet of the infusion bottle contacts the infusion tube 120, and the medicine is injected into the human body from the infusion bottle along the through groove 111 and the infusion tube 120, avoiding the plug extending into the interior of the infusion bottle to contaminate the medicine (as for the liquid cavity 110, when the infusion bottle is not installed, the elastic force of the airbag ring 200 can also be used to make the top of the liquid cavity 110 closed, avoiding the possibility of external environment contaminating the inside of the liquid cavity 110);

[0045] Moreover, when facing a larger infusion bottle, the elastic gathering mechanism 300 gathers inwards to clamp and fix the outer wall of the infusion bottle again, so as to prevent the infusion bottle from tipping over and shaking, improve the stability of the installation, and ensure the stability of the connection between the inside of the infusion bottle and the liquid cavity 110;

[0046] When facing a smaller infusion bottle, the inflation drive assembly 210 inflates the inside of the airbag ring 200 to improve the clamping effect of the infusion bottle, and the elastic gathering mechanism 300 rotates outward to open, so that the elastic gathering mechanism 300 limits the inflation drive assembly 210 from being deflated by the rebound force generated by the squeezing of the airbag ring 200, thereby improving the fixing strength;

[0047] Meanwhile, the fixing effect of the syringe and the infusion bag is limited. If the patient or the patient's family accidentally pulls the infusion tube 120, it is easy for the syringe to fall off from the end of the infusion bag. Moreover, when separating and replacing the infusion bag and the infusion set, it is necessary to pull the infusion set and the infusion bag forcefully. If the infusion tube 120 of the infusion set is pulled, it is easy to cause deformation and damage, affecting subsequent use. Therefore, by leading out the gas in the airbag ring 200 through the inflation driving component 210, the internal space size of the airbag ring 200 is increased, facilitating the installation and disassembly of the infusion bottle. Meanwhile, by rotating the elastic gathering mechanism 300, it can be moved away from the outer wall of the infusion bottle, facilitating the taking and placing of the infusion bottle.

[0048] On the basis above, the specific structure needs to be disclosed in detail:

[0049] First, when the medicine in the infusion bottle is poured into the liquid cavity 110, it is necessary to ensure that the medicine in the liquid cavity 110 can quickly flow into the infusion tube 120 through the through groove 111. As Figure 3 shown, the liquid cavity 110 is a conical shell structure. The inside of the liquid cavity 110 is used to accommodate the liquid outlet end of the infusion bottle, and the inner diameter of the liquid cavity 110 decreases from top to bottom and is connected to the through groove 111. By inserting the liquid outlet end of the infusion set into the liquid cavity 110, the medicine can be poured into the liquid cavity 110, and the medicine enters the infusion tube 120 along the through groove 111 to achieve intravenous infusion (as for the principle of intravenous infusion, an air return tube is arranged near the needle at the end of the infusion tube 120, which is very easy for those skilled in the art to think of and has nothing to do with the main technical problems to be solved by the present invention).

[0050] Then, to enable the inflation driving component 210 to control the inflation and deflation of the airbag ring 200. During inflation, the infusion bottle inside the airbag ring 200 can be elastically clamped and fixed. During deflation, the inside of the airbag ring 200 opens, facilitating the removal of the infusion bottle. Please refer to Figure 4 shown, the specific structure of the inflation driving component 210 is further disclosed. The inflation driving component 210 at least includes a through shell 211 fixed to the outer wall of the connecting frame 100. The inside of the through shell 211 is connected to the airbag ring 200 through a pipeline. A piston plate 212 is slidably arranged inside the through shell 211. The outer wall of the piston plate 212 is hermetically and slidably adapted to the inside of the through shell 211. By sliding the piston plate 212 into the through shell 211, the air inside the through shell 211 enters the airbag ring 200 through the pipeline, causing the airbag ring 200 to expand and clamp the infusion bottle. On the contrary, when the piston plate 212 slides outward from the through shell 211, the air inside the airbag ring 200 is sucked into the through shell 211, exposing the inside of the airbag ring 200 and facilitating the installation or removal of the infusion bottle.

[0051] Since the piston plate 212 is located inside the through-shell 211, it is inconvenient to control the movement of the piston plate 212. Therefore, a sliding groove 2110 is provided on the inner wall of the through-shell 211. A transmission lead screw 213 is rotatably provided inside the sliding groove 2110. The outer wall of the transmission lead screw 213 is threadedly engaged with the edge of the piston plate 212. A turntable 214 is rotatably provided on the outer wall of the through-shell 211. The end of the turntable 214 extends into the sliding groove 2110, and two vertically meshing bevel gears 215 are provided between the end of the turntable 214 and the end of the transmission lead screw 213. By rotating the turntable 214, the two vertically meshing bevel gears 215 rotate accordingly, driving the transmission lead screw 213 to rotate inside the sliding groove 2110, and causing the edge of the piston plate 212 to slide along the thread on the outer wall of the transmission lead screw 213, improving portability.

[0052] Further, to enable the elastic gathering mechanism 300 to gather inward to clamp and fix the outer wall of the infusion bottle, please refer to Figures 5-6 As shown, the structure of the elastic gathering mechanism 300 is further disclosed. The elastic gathering mechanism 300 at least includes a plurality of movable members 320 provided at the top edge of the connecting frame 100. A movable block 321 is fixedly connected to the top of the movable member 320. A gathering rod 310 is movably connected to the outer wall of the movable block 321. By rotating the gathering rod 310 along the movable block 321, the gathering rod 310 is adapted to clamp the outer wall of the infusion bottle.

[0053] Specifically, a shaft rod 311 is fixedly connected to the slotted groove at the bottom of the gathering rod 310. The shaft rod 311 movably penetrates through the movable block 321, and an elastic member 312 is fixedly connected between the end of the shaft rod 311 and the outer wall of the movable block 321. The elastic member 312 is used to generate a restoring force to make the gathering rod 310 gather inward. After the gathering rod 310 is opened, the infusion bottle is placed between the plurality of gathering rods 310, causing the elastic member 312 to contract and generate a restoring force, driving the gathering rod 310 to fit the outer wall of the infusion bottle, realizing the clamping and fixing of the infusion bottle.

[0054] Next, when it is necessary to place the infusion bottle between the plurality of gathering rods 310, it is inconvenient to open the gathering rods 310. And to enable the gathering rods 310 to open outward to contact and restrict the movement of the piston plate 212, therefore, as Figure 6 shown, a rotating rod 322 is fixedly connected to the bottom of the movable member 320. The bottom of the rotating rod 322 is rotatably connected to the top edge of the connecting frame 100. By rotating the rotating rod 322, the movable member 320 and the gathering rod 310 are driven to rotate outward. Under the elastic force of the elastic member 312, the gathering rod 310 rotates downward until it fits the turntable 214 on the outer wall of the through-shell 211. Under the restoring force of the elastic member 312, the frictional resistance with the turntable 214 is increased, restricting the rotation of the turntable 214 and preventing the piston plate 212 from moving randomly. At the same time, when the plurality of gathering rods 310 rotate outward, the placement cavity 130 can be completely exposed, facilitating the installation of the infusion bottle.

[0055] When the gathering rod 310 contacts the infusion bottle for clamping and fixing, the contact area between the gathering rod 310 and the infusion bottle is small, resulting in poor clamping stability. Therefore, as Figure 5 shown, a rotating fork 332 is provided on the inner surface of the gathering rod 310. A rotating block 331 is rotatably provided inside the rotating fork 332. A fitting plate 330 is fixedly connected to the outer wall of the rotating block 331. The inner wall of the fitting plate 330 is of an arc structure, realizing the arc matching between the fitting plate 330 and the outer wall of the infusion bottle. When the end of the gathering rod 310 fits the infusion bottle for clamping, the fitting plate 330 can also limit and fix the infusion bottle, improving the fixing effect;

[0056] Moreover, when the gathering rod 310 rotates outward, it drives the fitting plate 330 to rotate outward. The rotating block 331 rotates inside the rotating fork 332, making the fitting plate 330 form an arc support shape, facilitating the more stable placement of the connecting frame 100 on the table, improving the subsequent placement effect, and avoiding contamination caused by rolling during placement.

[0057] In addition, when the infusion bottle slides out and into the space between the ends of the gathering rod 310, the frictional resistance between the gathering rod 310 and the outer wall of the infusion bottle is relatively large, and the gathering rod 310 is likely to be damaged after a long time. Therefore, as Figure 8 shown, a contact housing 313 is provided at the upper end of the gathering rod 310. A ball 314 is movably connected inside the contact housing 313. The ball 314 is used to roll and fit the outer wall of the infusion bottle. When the infusion bottle is inserted into the gathering rod 310, the ball 314 rolls along the outer wall of the infusion bottle, avoiding wear between the gathering rod 310 and the infusion bottle.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A directional infusion set that is convenient for replacement, characterized in that, At least include: A connecting frame (100), inside which there is a liquid chamber (110) and a placement chamber (130). The placement chamber (130) is located above the liquid chamber (110). A through groove (111) is opened at the bottom of the liquid chamber (110). The liquid chamber has a conical shell structure. The inside of the liquid chamber is used to accommodate the liquid outlet end of an infusion bottle, and the inner diameter of the liquid chamber decreases from top to bottom and is connected to the through groove. The bottom of the through groove (111) is fixedly connected to an infusion tube (120). By inserting the liquid outlet end of the infusion set into the inside of the liquid chamber (110), the medicine is poured into the liquid chamber (110), and the medicine enters the infusion tube (120) along the through groove (111) to achieve intravenous infusion. An airbag ring (200) is fixedly installed between the placement chamber (130) and the liquid chamber (110), and an inflation driving component (210) for expanding and clamping the liquid outlet of the infusion bottle is communicated with the outer wall of the airbag ring (200). When no infusion bottle is installed in the liquid chamber (110), the top of the liquid chamber (110) can also be in a closed state by the self-elastic force of the airbag ring (200). An elastic gathering mechanism (300) is rotatably arranged at the edge of the connecting frame (100). When the elastic gathering mechanism (300) rotates inwards, it is used to clamp the body of the infusion bottle in the placement chamber (130). When the elastic gathering mechanism (300) rotates outwards, it is used to squeeze and restrict the inflation and deflation operations of the inflation driving component (210). The elastic gathering mechanism (300) at least includes a plurality of movable parts (320) arranged at the top edge of the connecting frame (100). A movable block (321) is fixedly connected to the top of the movable part (320). A gathering rod (310) is movably connected to the outer wall of the movable block (321). A rotating rod (322) is fixedly connected to the bottom of the movable part (320). The bottom of the rotating rod (322) is rotatably connected to the top edge of the connecting frame (100). A rotating fork (332) is arranged on the inner surface of the gathering rod (310). A rotating block (331) is rotatably arranged inside the rotating fork (332). A fitting plate (330) is fixedly connected to the outer wall of the rotating block (331). The inner wall of the fitting plate (330) has an arc-shaped structure.

2. The infusion set for convenient replacement according to claim 1, wherein: The liquid chamber (110) has a conical shell structure. The inside of the liquid chamber (110) is used to accommodate the liquid outlet end of the infusion bottle, and the inner diameter of the liquid chamber (110) decreases from top to bottom and is connected to the through groove (111).

3. The infusion set for convenient replacement according to claim 2, characterized in that: The inflation driving component (210) at least includes a through shell (211) fixed to the outer wall of the connecting frame (100). The inside of the through shell (211) is communicated with the airbag ring (200) through a pipeline. A piston plate (212) is slidably arranged inside the through shell (211). The outer wall of the piston plate (212) is hermetically and slidably adapted to the inside of the through shell (211).

4. The infusion set that is directionally convenient for replacement according to claim 3, wherein: The inner wall of the through-shell (211) is provided with a sliding groove (2110), a transmission lead screw (213) is rotatably arranged inside the sliding groove (2110), the outer wall of the transmission lead screw (213) is in threaded fit connection with the edge of the piston plate (212), a turntable (214) is rotatably arranged on the outer wall of the through-shell (211), the end of the turntable (214) extends into the inside of the sliding groove (2110), and two vertically meshing bevel gears (215) are arranged between the end of the turntable (214) and the end of the transmission lead screw (213).

5. The infusion set that is directionally convenient for replacement according to claim 4, wherein: A shaft rod (311) is fixedly connected to the bottom of the slot of the gathering rod (310), the shaft rod (311) movably penetrates through the movable block (321), and an elastic member (312) is fixedly connected between the end of the shaft rod (311) and the outer wall of the movable block (321), and the elastic member (312) is used to generate a resilient force to make the gathering rod (310) gather inwardly.

6. The infusion set that is directionally convenient for replacement according to claim 5, wherein: The upper end of the gathering rod (310) is provided with a contact housing (313), a ball (314) is movably connected inside the contact housing (313), and the ball (314) is used to roll and fit against the outer wall of the infusion bottle.

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