Portable infusion nursing device

Abstract

The utility model discloses a portable infusion nursing device, and belongs to the field of medical instruments. The nursing device comprises a shell and a clamping groove which is formed in the shell and used for clamping the shell to an infusion tube; the shell is provided with a flow adjusting structure used for adjusting the flow speed of liquid in the infusion tube, and the flow adjusting structure comprises a driving lead screw rotationally inserted into the shell, a threaded sleeve plate arranged outside the driving lead screw in a threaded sleeving mode and connected with the shell in a sliding mode and a driving structure arranged on the shell. A structure capable of manually adjusting and controlling the flow rate of liquid in an infusion tube is arranged on a shell of the infusion nursing device, the flow can be steplessly and accurately controlled, more labor is saved in actual operation through the speed reduction effect of worm and worm gear transmission, and the flow rate can be adjusted and controlled through the self-locking effect of worm and worm gear transmission. The position of the threaded sleeve plate cannot be changed spontaneously under the impact and vibration conditions, so that the flow is kept stable, and the safety in the infusion process and the comfort of a patient are improved.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a portable infusion nursing device. Background Art

[0002] Infusion, or large-volume injection solution, refers to a large-dose injection solution infused into the body by intravenous drip. The single-dose administration is more than 100 ml. It is a branch of injection agents, usually packaged in glass or plastic infusion bottles or bags, without bacteriostatic agents. During use, the drip rate is adjusted through an infusion set to continuously and stably input the drug into the body.

[0003] The Chinese utility model patent with the authorization announcement number CN201324401Y discloses a flow control device for a medical infusion / drainage system. This flow control device for a medical infusion / drainage system has a pipe clamp and a roller provided inside the pipe clamp. A pipe passage for the pipeline to pass through is provided inside the pipe clamp. The roller has a shaft body protruding towards the side of the roller. Inside the pipe clamp, there is a roller slideway on which the shaft body can slide. At least one limit groove is provided on the roller slideway. By sliding the roller to change the flow cross-section of the pipeline, the opening, closing, and flow rate adjustment of the pipeline can be realized.

[0004] In some special cases, such as when a patient experiences pain during infusion and it is necessary to promptly adjust the flow rate of the liquid inside the infusion tube to relieve the patient's pain. However, when the above flow control device adjusts the flow rate, there are only three gears, and it is impossible to precisely control the flow rate. Moreover, the actual operation is rather laborious. Under the conditions of impact and vibration, the roller may still spontaneously change its position, resulting in an accidental change in the flow rate.

[0005] Therefore, this application provides a portable infusion nursing device to solve the above problems. Utility Model Content

[0006] This application provides a portable infusion nursing device, aiming to solve the problems that the existing infusion devices still have limitations in controlling the infusion rate, cannot precisely control the flow rate, the actual operation is rather laborious, and under the conditions of impact and vibration, the roller may still spontaneously change its position, resulting in an accidental change in the flow rate.

[0007] To achieve the above object, the present application provides the following technical solution: A portable infusion nursing device, including a housing and a card slot opened on the housing for clamping the housing on the infusion tube; A flow rate adjustment structure for adjusting the liquid flow rate in the infusion tube is provided on the housing. The flow rate adjustment structure includes a driving lead screw rotatably inserted into the housing, a threaded sleeve plate threadedly sleeved outside the driving lead screw and slidably connected to the housing for squeezing the infusion tube, and a driving structure provided on the housing for driving the driving lead screw to rotate to move the threaded sleeve plate closer to the infusion tube; The driving structure includes a worm gear fixedly sleeved on the driving lead screw, a worm rotatably inserted into the housing and meshed with the worm gear for driving the worm gear to rotate, and a driving member provided on the housing and fixedly connected to the shaft rod of the worm.

[0008] Through the above technical solution, by providing a structure on the housing of the infusion nursing device that can manually adjust and control the liquid flow rate inside the infusion tube, the flow rate can be accurately controlled steplessly, and due to the deceleration effect of the worm and worm gear transmission, the actual operation is more labor-saving. Due to the self-locking effect of the worm and worm gear transmission, the threaded sleeve plate will not spontaneously change its position under impact and vibration, keeping the flow rate stable.

[0009] Preferably, a pointed plate for squeezing the infusion tube is fixedly connected to one end of the threaded sleeve plate close to the card slot.

[0010] Through the above technical solution, the pointed plate squeezes the infusion tube through its tip, making it easier to cause concave deformation on the outer wall of the infusion tube, thus making the flow rate adjustment more labor-saving.

[0011] Preferably, a fixing plate for cooperating with the pointed plate to squeeze the infusion tube is fixedly connected inside the card slot.

[0012] Through the above technical solution, the fixing plate cooperates with the pointed plate to increase the degree of concave deformation on both sides of the infusion tube, facilitating the adjustment of the flow rate.

[0013] Preferably, the threaded sleeve plate is square-shaped, and a square groove communicating with the card slot is opened on the housing for the axial movement of the threaded sleeve plate.

[0014] Through the above technical solution, by slidingly connecting the square groove with the square threaded sleeve plate, the rotation of the threaded sleeve plate is avoided.

[0015] Preferably, a storage groove for inserting and installing the driving member is opened on the outer wall of the housing.

[0016] Through the above technical solution, the storage groove stores most of the volume of the driving member, making the structure compact, and it is not easy for personnel to accidentally touch the driving member, which is safer.

[0017] Preferably, the driving member is a gear or a disk with anti-slip patterns.

[0018] Through the above technical solution, the gear or the disk with anti-slip patterns is convenient for personnel to turn and is not easy to slip.

[0019] Preferably, a locking structure for fixing the housing on the infusion tube is arranged inside the card slot. The locking structure includes rotating rods symmetrically and rotatably installed on both sides inside the card slot and in contact with the outer wall of the infusion tube, convex plates fixedly connected to the outer walls of the rotating rods for clamping the infusion tube, and torsion springs arranged between the housing and the rotating rods.

[0020] Through the above technical solution, the convex plates on the rotating rods clamp and lock the infusion tube, and the torsion spring provides a restoring force for the rotation of the rotating rods, improving the stability of the housing installed on the infusion tube.

[0021] Preferably, a plurality of convex rods are fixedly connected to the outer wall of the rotating rod at equal circumferential intervals.

[0022] Through the above technical solution, the convex rods play a role in increasing the friction force with the infusion tube.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The present application utilizes a structure provided on the housing of the infusion care device that can manually adjust and control the flow rate of the liquid inside the infusion tube, enabling stepless and precise control of the flow rate. And due to the deceleration effect of the worm and worm gear transmission, the actual operation is more labor-saving. Due to the self-locking effect of the worm and worm gear transmission, the threaded sleeve plate will not spontaneously change its position under impact and vibration, keeping the flow rate stable.

[0025] 2. When positioning and installing the housing on the infusion tube, through the cooperation of the infusion tube and the rotating rod and the action of the self-weight of the housing, the rotating rods on the left and right sides of the infusion tube rotate counterclockwise and clockwise respectively, and then the convex plates on the rotating rods clamp and lock the infusion tube, thereby improving the stability of the housing installed on the infusion tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a portable infusion care device according to an embodiment;

[0027] Figure 2 is a schematic diagram of the other side of the structure inside the card slot according to an embodiment;

[0028] Figure 3 is a schematic structural diagram of the back of the housing according to an embodiment;

[0029] Figure 4 is a schematic structural diagram of the inside of the housing according to an embodiment.

[0030] In the figure: 1. Housing; 2. Card slot; 3. Locking structure; 31. Rotating rod; 32. Convex plate; 33. Torsion spring; 34. Convex rod; 4. Flow rate adjustment structure; 41. Driving lead screw; 42. Threaded sleeve plate; 43. Tapered plate; 44. Fixed plate; 45. Worm gear; 46. Worm; 47. Driving member. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0032] Embodiment 1

[0033] This embodiment provides a portable infusion nursing device, as Figures 1-4 shown. The nursing device includes a housing 1 and a card slot 2 opened on the housing 1 for clamping the housing 1 on the infusion tube;

[0034] A flow rate adjustment structure 4 for adjusting the liquid flow rate in the infusion tube is provided on the housing 1. The flow rate adjustment structure 4 includes a driving lead screw 41 rotatably inserted into the housing 1, a threaded sleeve plate 42 threadedly sleeved outside the driving lead screw 41 and slidably connected to the housing 1 for squeezing the infusion tube, and a driving structure provided on the housing 1 for driving the driving lead screw 41 to rotate to move the threaded sleeve plate 42 closer to the infusion tube; the driving structure includes a worm gear 45 fixedly sleeved on the driving lead screw 41, a worm 46 rotatably inserted into the housing 1 and meshed with the worm gear 45 for driving the worm gear 45 to rotate, and a driving member 47 provided on the housing 1 and fixedly connected to the shaft of the worm 46.

[0035] By providing a structure on the housing 1 of the infusion nursing device that can manually adjust and control the liquid flow rate inside the infusion tube, the flow rate can be accurately controlled steplessly, and due to the deceleration effect of the transmission of the worm 46 and the worm gear 45, the actual operation is more labor-saving. Due to the self-locking effect of the transmission of the worm 46 and the worm gear 45, the threaded sleeve plate 42 will not spontaneously change its position under impact and vibration, keeping the flow rate stable and improving the safety of the infusion process and the comfort of the patient.

[0036] In use, when it is necessary to adjust the flow rate of the liquid in the infusion tube, first slide the driving member 47, so that the driving member 47 drives the worm 46 and the worm gear 45 to rotate counterclockwise synchronously. The worm gear 45 drives the driving lead screw 41 to rotate counterclockwise. Under the action of the square groove, the driving lead screw 41 drives the threaded sleeve plate 42 to move towards the infusion tube, squeezing the infusion tube. At this time, as the infusion tube is squeezed, the flow rate of the liquid in the infusion tube decreases; conversely, when the driving member 47 drives the worm 46, the worm gear 45 and the driving lead screw 41 to rotate clockwise, the threaded sleeve plate 42 moves away from the infusion tube, and then the flow rate of the liquid inside the infusion tube increases.

[0037] Specifically, a pointed plate 43 for squeezing the infusion tube is fixedly connected to one end of the threaded sleeve plate 42 close to the card slot 2.

[0038] More specifically, a fixing plate 44 corresponding to the pointed plate 43 and used to cooperate with the pointed plate 43 to squeeze the infusion tube is fixedly connected inside the card slot 2.

[0039] Specifically, the threaded sleeve plate 42 is square-shaped, and a square groove for the axial movement of the threaded sleeve plate 42 is provided on the housing 1 and communicated with the card slot 2. By using the cooperation of the square groove and the square threaded sleeve plate 42, the threaded sleeve plate 42 can be axially moved along the driving lead screw 41.

[0040] Furthermore, a storage groove for inserting and installing the driving member 47 is provided on the outer wall of the housing 1. The storage groove can be used to embed the driving member 47 on the housing 1, which is convenient for carrying the infusion care device. During the carrying process, it can be placed in the pocket of medical staff.

[0041] Furthermore, the driving member 47 is a gear or a disc with anti-slip lines, which is convenient to dial and can provide a good anti-slip effect. In other embodiments, the driving member 47 can also be an object with rubber or silica gel as the outer wall, or a structure similar to a turning handle.

[0042] Embodiment 2

[0043] A portable infusion care device, different from Embodiment 1, (in the case of slippage between the infusion tube and the card slot 2, there will be a problem that the housing 1 directly detaches from the infusion tube). For this reason, a locking structure 3 for fixing the housing 1 on the infusion tube is provided inside the card slot 2. The locking structure 3 includes rotating rods 31 symmetrically and rotatably installed on both sides inside the card slot 2 and in contact with the outer wall of the infusion tube, convex plates 32 fixedly connected to the outer walls of the rotating rods 31 for clamping the infusion tube, and torsion springs 33 arranged between the housing 1 and the rotating rods 31; a plurality of convex rods 34 are fixedly connected to the outer wall of the rotating rod 31 at equal intervals in the circumferential direction. The two ends of the torsion spring 33 are respectively abutted against or fixed to the housing 1 and the rotating rod 31, and the torsion spring 33 provides a restoring force for the upward rotation of the convex plate 32, improving the reliability of the device.

[0044] When positioning and installing the housing 1 on the infusion tube, under the cooperation of the infusion tube and the rotating rod 31 and the action of the self-gravity of the housing 1, the rotating rods 31 on the left and right sides of the infusion tube rotate counterclockwise and clockwise respectively, and then the convex plates 32 on the rotating rods 31 clamp and lock the infusion tube, thereby improving the stability of the installation of the housing 1 on the infusion tube.

[0045] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and concept of the present application, makes equivalent substitutions or changes, and should be covered by the protection scope of the present application.

Claims

1. A portable infusion nursing device, comprising a housing (1) and a card slot (2) opened on the housing (1) for clamping the housing (1) on an infusion tube; It is characterized in that: A flow rate adjustment structure (4) for adjusting the liquid flow rate in the infusion tube is provided on the housing (1). The flow rate adjustment structure (4) includes a driving lead screw (41) rotatably inserted into the housing (1), a threaded sleeve plate (42) threadedly sleeved outside the driving lead screw (41) and slidably connected to the housing (1) for extruding the infusion tube, and a driving structure provided on the housing (1) for driving the driving lead screw (41) to rotate to move the threaded sleeve plate (42) closer to the infusion tube; The driving structure includes a worm wheel (45) fixedly sleeved on the driving lead screw (41), a worm (46) rotatably inserted into the housing (1) and meshed with the worm wheel (45) for driving the worm wheel (45) to rotate, and a driving member (47) provided on the housing (1) and fixedly connected to the shaft of the worm (46).

2. The portable infusion care device according to claim 1, wherein: A pointed plate (43) for extruding the infusion tube is fixedly connected to one end of the threaded sleeve plate (42) close to the card slot (2).

3. The portable infusion care device according to claim 2, characterized in that: A fixing plate (44) corresponding to the pointed plate (43) and used for cooperating with the pointed plate (43) to extrude the infusion tube is fixedly connected inside the card slot (2).

4. The portable infusion care device according to claim 1, wherein: The threaded sleeve plate (42) is square-shaped, and a square groove communicating with the card slot (2) is opened on the housing (1) for the axial movement of the threaded sleeve plate (42).

5. The portable infusion care device according to claim 1, wherein: A receiving groove for inserting and installing the driving member (47) is opened on the outer wall of the housing (1).

6. The portable infusion care device according to claim 1, wherein: The driving member (47) is a gear or a disk with anti-slip lines.

7. The portable infusion care device according to claim 1, characterized in that: A locking structure (3) for fixing the housing (1) on the infusion tube is provided inside the card slot (2). The locking structure (3) includes a rotating rod (31) symmetrically and rotatably installed on both sides inside the card slot (2) and contacting the outer wall of the infusion tube, a convex plate (32) fixedly connected to the outer wall of the rotating rod (31) for clamping the infusion tube, and a torsion spring (33) provided between the housing (1) and the rotating rod (31).

8. The portable infusion care device according to claim 7, wherein: A plurality of convex rods (34) are fixedly connected to the outer wall of the rotating rod (31) at equal intervals in the circumferential direction.

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