Adjustable constant-pressure infusion pressurizing device

Abstract

The utility model discloses an adjustable constant pressure infusion pressurizing device, and particularly relates to the technical field of medical instruments, which comprises a shell I. A shell assembly is tightly attached to the rear part of the shell I. The rear side of the outer part of the shell assembly and the front part of the outer surface of the shell I are fixedly connected with a fixing buckle together. A fixing device is fixedly connected to the interior of the shell assembly, and an infusion bag is fixedly connected to the upper side of the interior of the fixing device. When the adjustable constant-pressure infusion pressurizing device is used, an infusion bag is firmly fixed in cooperation with the fixing device, the second shell and the first shell are tightly attached together in cooperation with the fixing buckle, water can be filled into the device part through the water inlet pipe at the upper end of the second shell, and the water level needs to exceed the position of the upper end of the infusion bag; the rubber strip and the rubber semi-environment guarantee that the whole device does not leak water, meanwhile, the infusion tube of the infusion bag can conduct normal infusion, the whole device guarantees that the infusion bag is pressed constantly through constant water pressure, and certain flow and stability can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an adjustable constant pressure infusion pressurizing device. Background Art

[0002] Intravenous infusion is an effective treatment method commonly used in medical clinical practice to inject large amounts of sterile solutions or drugs through the veins. It is especially important in emergency rescue of the wounded at disaster sites or battlefields. Current infusions generally use infusion bags, which use the physical principle of liquid static pressure to rely on the liquid's own gravitational potential energy difference to enter the vein through an infusion tube. However, different drugs or different patients require different infusion flow rates, so the infusion pressure needs to be adjusted and kept constant. Existing infusion devices generally do not have a setting for adjusting the infusion pressure, so an adjustable constant pressure infusion pressurizing device is needed.

[0003] Chinese patent document CN219783364U discloses an infusion device, including an infusion pump and an infusion stand, wherein the infusion pump is installed on the main rod of the infusion stand, and the infusion pump is installed on the main rod of the infusion stand through a hanger, a hanging plate is provided on the rear side of the infusion pump, and a hanging hole is provided on the hanging plate that passes through the upper and lower ends; the hanger is detachably installed on the main rod of the infusion stand through the mounting hole, and a hanging bar is vertically provided on one side of the hanger; when the infusion pump is installed on the main rod of the infusion stand, the hanging bar is inserted into the hanging hole from the lower side of the hanging plate. The above patent document solves the problem in the prior art that most infusion pumps are fixed to the infusion stand by a fixing clip at the back, which results in the operator being able to operate the fixing clip with one hand, which easily causes the fixing clip to be unstable and thus fall, but the above patent document still has the following defects during use:

[0004] The above patent document is not convenient for adjusting the infusion pressure during use, cannot control the flow rate and pressure of the fluid, and cannot maintain a certain flow rate and stability. Utility Model Content

[0005] The main purpose of the utility model is to provide an adjustable constant pressure infusion pressurizing device, which can effectively solve the problem of facilitating the adjustment of the constant pressure.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An adjustable constant pressure infusion pressurizing device comprises a shell one, a shell component is tightly attached to the rear of the shell one, a fixing buckle is fixedly connected to the rear side of the outer surface of the shell component and the front side of the outer surface of the shell one, a hanging rope is rotatably connected to the middle part of the rear side of the shell component and the middle side of the outer surface of the shell one, a fixing device is fixedly connected to the inside of the shell component, an infusion bag is fixedly connected to the upper side of the fixing device, and an injection tube and an infusion tube communicated with the inside of the infusion bag are fixedly connected to the lower end of the infusion bag.

[0008] Preferably, the housing assembly comprises a second housing, a front end of the second housing is fixedly connected to a rubber strip, and a lower front end of the second housing and a lower rear end of the first housing are both fixedly connected to a rubber half ring.

[0009] Preferably, the upper end and the lower end of the second shell are respectively fixedly connected with a water inlet pipe and a water outlet pipe communicating with the inner cavity of the second shell, a plurality of heating rods are fixedly connected to the outer side of the bottom wall of the inner surface of the second shell and the outer side of the bottom wall of the inner surface of the first shell, a plurality of ventilation holes are opened at the upper end of the second shell, and the outer surface of the infusion tube at the lower end of the infusion bag is in close contact with the inner surface of the rubber half ring.

[0010] Preferably, the fixing device comprises a net box, a through slot is provided at the lower end of the net box, and a fixing component is fixedly connected to the upper end of the net box.

[0011] Preferably, the net box is fixedly connected to the second housing.

[0012] Preferably, the fixing assembly includes a fixing rod and two movable plates, the left and right sides of the upper end of the fixing rod and the upper ends of the two movable plates are fixedly connected with extrusion plates, the sides of the front ends of the two movable plates away from each other are threadedly connected with a threaded rod 1, and the middle part of the front end of the fixing rod is fixedly connected with a hook.

[0013] Preferably, the infusion bag is arranged on the upper end of the hook, the two movable plates are slidably connected to the net box, and the fixing rod is fixedly connected to the net box.

[0014] Preferably, the positions of the two extrusion plates on the same side are corresponding, the front and rear parts of the outer surfaces of the two threaded rods are rotatably connected to the mesh box through a connecting plate, and the rear ends of the two threaded rods pass through the movable plate on the same side and extend to the front end of the fixed rod and are rotatably connected to the fixed rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. During use, the utility model cooperates with the fixing device to firmly fix the infusion bag, cooperates with the fixing buckle to hold the outer shell two and the outer shell one tightly together, and then water can be filled into the inner shell two and the outer shell one through the water inlet pipe at the upper end of the outer shell two, and the water level must exceed the position of the upper end of the infusion bag. The rubber strip and the rubber half ring are used to ensure that the entire device is watertight while the infusion tube of the infusion bag can be infused normally. The entire device uses constant water pressure to ensure that the infusion bag is under constant pressure, controls the flow rate and pressure of the medicine, and can maintain a certain flow rate and stability.

[0017] 2. During the use of the utility model, if the flow rate of the liquid medicine needs to be accelerated, the pressure on the outer surface of the infusion bag can be increased, and water can be added to the inside of the device through the water inlet pipe. If the flow rate of the liquid medicine needs to be slowed down, a part of the water inside the device can be released through the water outlet pipe. During use, the device can use the heating rod to heat the water inside the outer shell two and the outer shell one according to the needs of the patient, so that the patient can better accept the liquid medicine delivered into the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a local structural state diagram of the utility model;

[0020] Figure 3 It is a schematic cutaway diagram of a local structure of the utility model;

[0021] Figure 4 For the utility model Figure 3 The enlarged schematic diagram at A in the middle;

[0022] Figure 5 It is a schematic diagram of the partial structure of the fixing device of the utility model;

[0023] Figure 6 For the utility model Figure 5 Enlarged schematic diagram of point B in the middle.

[0024] In the figure: 1. shell assembly; 2. fixing buckle; 3. shell 1; 4. hanging rope; 5. infusion bag; 6. fixing device; 11. shell 2; 12. rubber strip; 13. rubber half ring; 61. net box; 62. through groove; 63. fixing assembly; 631. hook; 632. extrusion plate; 633. fixing rod; 634. threaded rod 1; 635. movable plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] Embodiment 1

[0027] like Figure 1-6 As shown, an adjustable constant pressure infusion pressurizing device includes a shell 3, a shell component 1 is tightly attached to the rear of the shell 3, a fixing buckle 2 is fixedly connected to the rear side of the outer surface of the shell component 1 and the front side of the outer surface of the shell 3, a hanging rope 4 is rotatably connected to the middle part of the rear side of the shell component 1 and the middle side of the outer surface of the shell 3, a fixing device 6 is fixedly connected to the inside of the shell component 1, an infusion bag 5 is fixedly connected to the upper side of the inside of the fixing device 6, and an injection tube and an infusion tube communicated with the inside of the infusion bag 5 are fixedly connected to the lower end of the infusion bag 5.

[0028] A transparent plate is installed on the front of the outer surface of the shell 3 mentioned above, which is convenient for observing the use of the infusion bag 5 inside the device.

[0029] The fixing buckle 2 mentioned above is composed of two arc-shaped plates and a rotating shaft. One side of the two arc-shaped plates is connected together by the rotating shaft, and the other side of the two arc-shaped plates is fixedly connected by a threaded rod, and the two arc-shaped plates are respectively connected to the outer shell on the same side. The two arc-shaped plates can be fixed together by the threaded rod, and the outer shell 2 11 and the outer shell 1 3 can be fixed together at the same time.

[0030] During the implementation of this embodiment, the fixing buckle 2 is opened, and the upper part of the infusion bag 5 is fixed on the fixing device 6. Then, the outer shell component 1 and the outer shell 3 are fixedly connected together by the fixing buckle 2 through the threaded rod. Then, water is poured into the device through the water inlet pipe at the upper end of the outer shell component 1. It can be observed through the glass plate on the front of the outer shell 3 that the water level is higher than the upper end of the infusion bag 5. Then, the device can be hung on the infusion pole using the hanging rope 4.

[0031] During the implementation process, due to the gravity of water, there is a pressure equivalent to that much weight acting on the wall and bottom of the container. The water in the container has pressure on the side and bottom surfaces. For any direction of the surface, the pressure is always perpendicular to the contact surface, and the pressure is the same when the depth is the same. The deeper the liquid is, the greater the pressure.

[0032] Therefore, when it is necessary to speed up the flow rate of the drug solution, the pressure on the outer surface of the infusion bag 5 can be increased, and water can be added to the inside of the device through the water inlet pipe. If it is necessary to slow down the flow rate of the drug solution, a part of the water inside the device can be released through the water outlet pipe. During use, the device can use the heating rod to heat the water inside the device appropriately according to the needs of the patient, so that the patient can better accept the drug solution delivered into the body.

[0033] Specifically, in order to fix the infusion bag 5 on the fixing device 6 so that the outer surface of the infusion bag 5 is evenly pressurized, refer to Figure 5 and Figure 6In this embodiment, the fixing device 6 includes a net box 61, a through slot 62 is provided at the lower end of the net box 61, and a fixing component 63 is fixedly connected to the upper end of the net box 61;

[0034] For further information, see Figure 6 In this embodiment, the fixing assembly 63 includes a fixing rod 633 and two movable plates 635. The left and right sides of the upper end of the fixing rod 633 and the upper ends of the two movable plates 635 are fixedly connected with an extrusion plate 632. The sides of the front ends of the two movable plates 635 that are away from each other are threadedly connected with a threaded rod 634. The middle part of the front end of the fixing rod 633 is fixedly connected with a hook 631.

[0035] For further information, see Figure 5 In this embodiment, the infusion bag 5 is arranged on the upper end of the hook 631, the two movable plates 635 are slidably connected to the net box 61, and the fixed rod 633 is fixedly connected to the net box 61;

[0036] For further information, see Figure 6 In this embodiment, the positions of the two extrusion plates 632 on the same side are corresponding, the front and rear parts of the outer surfaces of the two threaded rods 634 are rotatably connected to the net box 61 through the connecting plate, and the rear ends of the two threaded rods 634 pass through the movable plate 635 on the same side and extend to the front end of the fixed rod 633 and are rotatably connected to the fixed rod 633;

[0037] The two movable plates 635 mentioned above are in close contact with the infusion bag 5 and when the extrusion plate 632 fixes the infusion bag 5, the position of the hook 631 is avoided and no influence is exerted on the hook 631.

[0038] As can be seen from the above, first open the fixing buckle 2, rotate the shell 1 3, and leave enough space for the infusion bag 5 to be placed inside the net box 61. When the shell 1 3 is away from the shell 2 11, the rubber half ring 13 fixedly connected to the shell 1 3 is also driven away from the shell 2 11. Then, put the infusion bag 5 into the net box 61, and hang the upper through hole of the infusion bag 5 on the upper end of the hook 631. Then, the threaded rod 1 634 on both sides can be rotated in turn to make the movable plate 635 on the same side move forward and backward until the movable plate 635 contacts the infusion bag 5, until the infusion bag 5 is squeezed to squeeze the squeezing plate 632, and the squeezing plate 632 cooperates to firmly fix the infusion bag 5.

[0039] Then, the medicine injection tube and the infusion tube at the lower end of the infusion bag 5 are arranged to pass through the through groove 62 , and the infusion tube is placed on the inner surface of the rubber half ring 13 .

[0040] Embodiment 2

[0041] This embodiment adds water to the inside of the device on the basis of the first embodiment, while ensuring that the device can be normally infused without leaking, so as to achieve the purpose of constant pressure on the infusion bag 5, controlling the flow rate and pressure of the liquid medicine, and maintaining a certain flow rate and stability.

[0042] Specifically, to achieve the above purpose, refer to Figure 2 , Figure 3 and Figure 4 In this embodiment, the housing assembly 1 includes a housing 2 11, a rubber strip 12 is fixedly connected to the front end of the housing 2 11, and a rubber half ring 13 is fixedly connected to the lower part of the front end of the housing 2 11 and the lower part of the rear end of the housing 1 3;

[0043] For further information, see Figure 3 In this embodiment, the upper and lower ends of the second shell 11 are respectively fixedly connected with a water inlet pipe and a water outlet pipe communicating with the inner cavity of the second shell 11, and the outer side of the bottom wall of the inner surface of the second shell 11 and the outer side of the bottom wall of the inner surface of the first shell 3 are fixedly connected with a plurality of heating rods, and a plurality of vents are opened at the upper end of the second shell 11, and the outer surface of the infusion tube at the lower end of the infusion bag 5 is in close contact with the inner surface of the rubber half ring 13;

[0044] As can be seen from the above, after the infusion bag 5 is fixed, the outer shell 13 is rotated so that the outer shell 13 is tightly attached to the outer shell 2 11, and the rubber strip 12 is used to completely block the joint between the outer shell 2 11 and the outer shell 13 to prevent water from flowing out. Similarly, the two rubber half rings 13 are tightly attached to further prevent water from flowing out, thereby ensuring constant water pressure and tightly attached to the outer surface of the drug delivery tube so that the position of the drug delivery tube is also completely closed. Then water can be added to the device through the water inlet pipe, and the transparent plate on the front of the outer shell 3 is observed to make the water level line exceed the position of the upper end of the infusion bag 5. The water pressure is used to make the infusion bag 5 under constant pressure. According to the actual situation, water can be added to increase the pressure, or part of the water can be released to reduce the pressure, so as to control the flow rate and pressure of the liquid medicine and maintain a certain flow rate and stability.

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable constant pressure infusion pressurizing device, comprising a housing 1 (3), characterized in that: The rear part of the shell one (3) is closely attached to the shell component (1); the outer rear side of the shell component (1) and the outer front side of the shell one (3) are fixedly connected with a fixing buckle (2); the middle part of the rear side of the shell component (1) and the middle side of the outer surface of the shell one (3) are rotatably connected with a hanging rope (4); the interior of the shell component (1) is fixedly connected with a fixing device (6); the upper side of the interior of the fixing device (6) is fixedly connected with an infusion bag (5); the lower end of the infusion bag (5) is fixedly connected with a drug injection tube and an infusion tube that are in communication with the interior of the infusion bag (5); The housing assembly (1) comprises a second housing (11), the front end of the second housing (11) being fixedly connected to a rubber strip (12), and the lower part of the front end of the second housing (11) and the lower part of the rear end of the first housing (3) being fixedly connected to a rubber half ring (13); The upper and lower ends of the second shell (11) are respectively fixedly connected with a water inlet pipe and a water outlet pipe communicating with the inner cavity of the second shell (11); the outer side of the bottom wall of the inner surface of the second shell (11) and the outer side of the bottom wall of the inner surface of the first shell (3) are fixedly connected with a plurality of heating rods; the upper end of the second shell (11) is provided with a plurality of ventilation holes; the outer surface of the infusion tube at the lower end of the infusion bag (5) is in close contact with the inner surface of the rubber half ring (13).

2. The adjustable constant pressure infusion pressurizing device according to claim 1, characterized in that: The fixing device (6) comprises a net box (61), a through slot (62) is provided at the lower end of the net box (61), and a fixing component (63) is fixedly connected to the upper end of the net box (61).

3. The adjustable constant pressure infusion pressurizing device according to claim 2, characterized in that: The net box (61) is fixedly connected to the second housing (11).

4. The adjustable constant pressure infusion pressurizing device according to claim 2, characterized in that: The fixing assembly (63) comprises a fixing rod (633) and two movable plates (635); the left and right sides of the upper end of the fixing rod (633) and the upper ends of the two movable plates (635) are fixedly connected to an extrusion plate (632); the front ends of the two movable plates (635) are both threadedly connected to a threaded rod 1 (634) on the sides away from each other; and the middle part of the front end of the fixing rod (633) is fixedly connected to a hook (631).

5. The adjustable constant pressure infusion pressurizing device according to claim 4, characterized in that: The infusion bag (5) is arranged on the upper end of the hook (631), the two movable plates (635) are slidably connected to the net box (61), and the fixing rod (633) is fixedly connected to the net box (61).

6. The adjustable constant pressure infusion pressurizing device according to claim 4, characterized in that: The two extrusion plates (632) on the same side are positioned correspondingly, the front and rear portions of the outer surfaces of the two threaded rods (634) are rotatably connected to the net box (61) via a connecting plate, and the rear ends of the two threaded rods (634) pass through the movable plate (635) on the same side, extend to the front end of the fixed rod (633), and are rotatably connected to the fixed rod (633).

Images