Needle inserting and pulling device based on automatic infusion

Abstract

The utility model provides a needle inserting and pulling device based on automatic transfusion, which comprises a lifting unit connected with the bottom of a transfusion bottle placing bin, the lifting unit is connected with a driving unit, a liquid taking needle head is clamped in the lifting unit, the lifting unit comprises a lifting frame for driving the liquid taking needle head to move, and the lifting frame is connected with the driving unit. The lifting frame moves along the limiting assembly, a pressing assembly is arranged on the lifting unit, and when infusion needs to be stopped, an infusion tube is connected into the pressing assembly in a pressed mode. The driving unit drives the lifting unit to move, the lifting unit drives the liquid taking needle head to move, when a patient needs to replace an infusion bottle, the patient does not need to call a nurse to replace the infusion bottle, and the needle can be inserted and pulled out along with an automatic infusion device, so that the workload of the nurse is reduced; all components in the device can be realized through 3D printing, and the device is convenient and fast, low in cost, simple in structure, easy to operate and low in later maintenance cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a plug-in and pull-out needle device based on automatic infusion. BACKGROUND

[0002] Intravenous infusion is a common treatment method in modern hospitals. Patients often need to inject multiple bottles of liquid medicine during treatment, and patients often need to observe the infusion degree in hospitals at present. When the liquid medicine is infused, the nurse is notified to replace the infusion bottle. This method has several problems: first, the patient cannot rest at ease and needs to pay attention to the infusion situation at all times; second, the nurse needs to frequently replace the infusion bottle, which is a large amount of repeated work and increases the work burden.

[0003] In order to solve these problems, some automatic infusion devices have been developed, which can realize automatic bottle replacement. However, these devices often have complex structures, high costs and relatively poor practicability when realizing the plug-in and pull-out function. The existing plug-in and pull-out devices are inconvenient to operate due to complex design, and are prone to failure in actual application. In addition, the high cost also limits the widespread application of these devices in medical institutions.

[0004] Therefore, how to effectively solve the problem that the automatic infusion device often has a complex structure, high cost and relatively poor practicability when realizing the plug-in and pull-out function is a technical problem to be solved. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies in the above background art, the utility model provides a plug-in and pull-out needle device based on automatic infusion, which solves the problem that the automatic infusion device often has a complex structure, high cost and relatively poor practicability when realizing the plug-in and pull-out function.

[0006] The technical scheme of the present application is as follows:

[0007] A plug-in and pull-out needle device based on automatic infusion, comprising a lifting unit connected with the bottom of an infusion bottle placement bin, the lifting unit being connected with a driving unit, a liquid taking needle head being clamped in the lifting unit, the lifting unit comprising a lifting frame for moving the liquid taking needle head, the lifting frame moving along a limiting assembly, a pressing assembly being arranged on the lifting unit, and an infusion tube being pressed in the pressing assembly when infusion needs to be stopped. The driving unit drives the lifting unit to move, and the lifting unit drives the liquid taking needle head to move. When the patient needs to replace the infusion bottle, the nurse does not need to be called to replace the infusion bottle. The utility model can realize plug-in and pull-out of the needle with the automatic infusion device, thereby reducing the work load of the nurse.

[0008] Further, the driving unit comprises a rudder machine, a gear wheel being connected to the rotating shaft of the rudder machine, a rack being arranged on the lifting frame, the gear wheel being engaged with the rack, and the gear wheel rotating to drive the lifting unit to ascend or descend.

[0009] Further, the limiting assembly comprises a limiting frame arranged on the lower surface of the infusion bottle placing bin, the lifting frame moves along the limiting frame, and a limiting plate is arranged on the lifting frame and abuts against the end surface of the gear, so that the gear and the lifting frame are more stable when moving relative to each other and are not easy to shake.

[0010] Further, the side surface of the lifting frame is provided with a sliding groove which is in sliding fit with the limiting frame.

[0011] Further, the lifting needle is provided with a clamping block, the lifting frame is provided with a cross clamping groove, and a vertical direction allowing slot for placing the lifting needle and a horizontal direction allowing slot for clamping the clamping block are arranged on the cross clamping groove.

[0012] Further, the inner wall of the horizontal direction allowing slot is provided with a groove, and the clamping block is clamped in the groove, so that the lifting needle is not easy to fall off and is firmly clamped in the groove.

[0013] Further, the cross clamping groove is arranged on the back surface of the rack, and the sliding groove is arranged on the side surface of the rack, so that the lifting frame is small in size, light in weight and integrated in function, and each surface of the lifting frame contains different functions.

[0014] Further, the lower surface of the infusion bottle placing bin is connected with a supporting frame, and the rudder is clamped in the supporting frame.

[0015] Further, the top of the supporting frame is provided with a shell, the top of the rudder is inserted into the shell, and the shell is connected with the limiting frame, so that the stability is improved and the lifting frame is not easy to shake.

[0016] Further, the pressing assembly comprises a baffle arranged on the bottom of the limiting frame and a pressing block arranged on the lifting frame, and the infusion tube is arranged between the pressing block and the baffle, so that the danger that blood returns due to that the nurse does not arrive in time when the infusion is completed is effectively avoided.

[0017] The specific beneficial effects of the utility model include:

[0018] 1. The driving unit drives the lifting unit to move, and the lifting unit drives the lifting needle to move, so that the patient does not need to call a nurse to replace the infusion bottle when the patient needs to replace the infusion bottle, the utility model can follow the automatic infusion device to plug and unplug the needle, and the workload of the nurse is reduced.

[0019] 2. When the last bottle of medicine of the patient is injected, the pressing assembly in the utility model is pressed on the infusion tube, so that the medicine is prevented from continuing to flow, and the danger that blood returns due to that the nurse does not arrive in time when the infusion is completed is avoided.

[0020] 3、The lifting unit in the utility model is small in size, light in mass, and integrated in function, and meanwhile, each component can be realized through 3D printing, so that the utility model is convenient and fast, low in cost, simple in structure, easy to operate, and low in maintenance cost in later period. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without paying creative labor for the ordinary skilled in the art.

[0022] Figure 1 It is a use state schematic view of the utility model;

[0023] Figure 2 It is a use state schematic view of the utility model; Figure 1 It is an enlarged view of A in the utility model;

[0024] Figure 3 It is an exploded schematic view of the driving unit and the lifting unit;

[0025] Figure 4 It is a schematic view of the lifting frame;

[0026] Figure 5 It is an assembly schematic view of the driving unit and the lifting unit;

[0027] Figure 6 It is a use state schematic view of the utility model; Figure 5 It is an enlarged view of B in the utility model.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, infusion bottle placing bin;2, lifting unit;

[0030] 3, liquid taking needle;4, pressing assembly;

[0031] 5, infusion tube;

[0032] 11, rudder;12, rotating shaft;13, gear;

[0033] 14, support frame;15, limiting frame;16, sliding groove;17, shell;

[0034] 21, rack;22, lifting frame;23, clamping groove;

[0035] 31, limiting plate;

[0036] 41, baffle;42, pressing block;

[0037] 201, vertical direction accommodation groove;202, horizontal direction accommodation groove;

[0038] 231. Groove; 232. Block. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] An automated infusion needle insertion and removal device, such as Figure 1 , Figure 2 As shown, the device includes a lifting unit 2 connected to the bottom of the infusion bottle placement compartment 1. The lifting unit 2 is connected to a drive unit, and a needle 3 is engaged within the lifting unit 2. The lifting unit 2 includes a lifting frame 22 that moves the needle 3. The lifting frame 22 moves along a limiting component. A clamping component 4 is provided on the lifting unit 2. When it is necessary to stop the infusion, the infusion tube 5 is clamped into the clamping component 4. The drive unit moves the lifting unit 2, which in turn moves the needle 3. When the patient needs to change the infusion bottle, there is no need to call a nurse to change the bottle. This invention can follow the automatic infusion device for needle insertion and removal, reducing the workload of nurses. All components in this invention can be manufactured using 3D printing, which is convenient, quick, low-cost, simple in structure, easy to operate, and has low maintenance costs.

[0041] Specifically, the lifting unit 2 is equipped with a clamping component 4, and the infusion tube 5 connected to the liquid collection needle 3 is clamped and engaged with the clamping component 4. When the patient's last bottle of medicine is injected, the clamping component 4 presses on the infusion tube 5 to prevent the medicine from continuing to flow, thus avoiding the risk of backflow caused by the nurse not being in place in time and the medicine being injected.

[0042] Based on the above embodiments, as a preferred embodiment, such as... Figure 3 As shown, the drive unit includes a servo motor 11, a gear 13 is connected to the shaft 12 of the servo motor 11, and a rack 21 is provided on the lifting frame 22. The gear 13 meshes with the rack 21, and the gear 13 rotates to drive the lifting unit 2 to rise or fall.

[0043] On the basis of the above embodiment, as a preferred embodiment, the limiting assembly comprises a limiting frame 15 arranged on the lower surface of the infusion bottle placing bin 1, the lifting frame 22 moves along the limiting frame 15, and a limiting plate 31 is arranged on the lifting frame 22 and abuts against the end surface of the gear 13; when the gear 13 rotates, the end surface of the gear 13 abuts against the limiting plate 31, so that the gear 13 and the lifting frame 22 are more stable when moving relatively and are not easy to shake.

[0044] On the basis of the above embodiment, as a preferred embodiment, a sliding groove 16 is arranged on the side surface of the lifting frame 22, and the sliding groove 16 is in sliding cooperation with the limiting frame 15.

[0045] On the basis of the above embodiment, as a preferred embodiment, a clamping block 232 is arranged on the liquid taking needle 3, a cross-shaped clamping groove 23 is arranged on the lifting frame 22, and a vertical direction accommodation groove 201 for accommodating the liquid taking needle 3 and a horizontal direction accommodation groove 202 for clamping the clamping block 232 are arranged on the cross-shaped clamping groove 23, as shown in Figure 4 .

[0046] Specifically, the cross-shaped clamping groove 23 is made of elastic material, so as to facilitate taking the liquid taking needle 3.

[0047] On the basis of the above embodiment, as a preferred embodiment, as shown in Figure 6 , a groove 231 is arranged on the inner wall of the horizontal direction accommodation groove 202, and the clamping block 232 is clamped in the groove 231, so that the liquid taking needle 3 is not easy to fall off and is firmly clamped in the groove 231; only when the liquid taking needle 3 is pulled upward to be separated from the groove 231 by human force, the liquid taking needle 3 is taken off.

[0048] On the basis of the above embodiment, as a preferred embodiment, the cross-shaped clamping groove 23 is arranged on the back surface of the rack 21, and the sliding groove 16 is arranged on the side surface of the rack 21; the lifting frame 22 is small in volume, light in mass, and integrated in function.

[0049] On the basis of the above embodiment, as a preferred embodiment, the lower surface of the infusion bottle placing bin 1 is connected with a supporting frame 14, and the rudder 11 is clamped in the supporting frame 14.

[0050] On the basis of the above embodiment, as a preferred embodiment, the top of the supporting frame 14 is provided with a shell 17, and the top of the rudder 11 is inserted into the shell 17.

[0051] Specifically, the support frame 14 is U-shaped, the rudder 11 is clamped in the space enclosed by the U-shaped support frame, and the top of the U-shaped support frame is further provided with a shell 17, and the upper half of the rudder 11 is clamped in the shell 17 to prevent sliding.

[0052] On the basis of the above-mentioned embodiments, as a preferred embodiment, as shown in Figure 5 As shown, the pressing assembly 4 comprises a baffle 41 arranged at the bottom of the limiting frame 15 and a pressing block 42 arranged on the lifting frame 22, and the infusion tube 5 is arranged between the pressing block 42 and the baffle 41. When the last bottle of medicine of the patient is injected, the pressing block 42 is lowered until it is pressed on the infusion tube 5, and the infusion tube 5 between the pressing block 42 and the baffle 41 is deformed, thereby preventing the continuous flow of the medicine and avoiding the risk of backflow caused by the injection of the medicine being completed without the timely arrival of the nurse.

[0053] Specifically, the limiting frame 15 and the baffle 41 form a U shape, one end of the limiting frame 15 is connected with the lower surface of the infusion bottle placing bin 1, and the other end is connected with the shell 17, so that the stability is enhanced and the shaking is avoided.

[0054] Specifically, the lifting frame 22 in the utility model is small in size, light in weight and integrated in function, each surface of the lifting frame 22 contains different functions, the side surfaces are respectively used for inserting the infusion needle 3, moving the lifting frame 22 by engaging the rack 21 with the gear 13 and limiting the lifting frame 22, the top surface is used for clamping the infusion needle 3 and moving the infusion needle 3, and the bottom surface is provided with the pressing block 42 for pressing the infusion tube 5, so that the functions are complete.

[0055] The utility model does not exhaust the conventional technical means known by the person skilled in the art.

[0056] The above shows and describes the basic principle, main features and beneficial effects of the utility model. The above is only a preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic infusion based plug and needle device, characterized by: The lifting unit (2) is connected with the driving unit, the liquid taking needle (3) connected with the infusion tube (5) is clamped in the lifting unit (2), the lifting unit (2) comprises a lifting frame (22) for moving the liquid taking needle (3), the lifting frame (22) moves along a limiting assembly, a pressing assembly (4) is arranged on the lifting unit (2), when infusion needs to be stopped, the infusion tube (5) is pressed in the pressing assembly (4); the driving unit comprises a rudder (11), a gear (13) is connected to the rotating shaft (12) of the rudder (11), a rack (21) is arranged on the lifting frame (22), the gear (13) is engaged with the rack (21); the limiting assembly comprises a limiting frame (15) arranged on the lower surface of the infusion bottle placing bin (1), the lifting frame (22) moves along the limiting frame (15), a limiting plate (31) is arranged on the lifting frame (22) and abuts against the end face of the gear (13); the pressing assembly (4) comprises a baffle (41) arranged at the bottom of the limiting frame (15) and a pressing block (42) arranged on the lifting frame (22), the infusion tube (5) is arranged between the pressing block (42) and the baffle (41).

2. The automatic infusion based pen device of claim 1, wherein: The side surface of the lifting frame (22) is provided with a sliding groove (16), and the sliding groove (16) is in sliding fit with the limiting frame (15).

3. The automatic infusion based pen device of claim 2, wherein: The liquid taking needle (3) is provided with a clamping block (232), the lifting frame (22) is provided with a cross clamping groove (23), the cross clamping groove (23) is provided with a vertical direction allowing slot (201) for placing the liquid taking needle (3) and a horizontal direction allowing slot (202) for clamping the clamping block (232).

4. The automatic infusion based pen needle device of claim 3, wherein: The inner wall of the horizontal direction allowing slot (202) is provided with a groove (231), and the clamping block (232) is clamped in the groove (231).

5. The automatic infusion based pen needle device of claim 4, wherein: The cross clamping groove (23) is arranged on the back surface of the rack (21), and the sliding groove (16) is arranged on the side surface of the rack (21).

6. The automatic infusion based pen needle device according to any of claims 1-5, wherein: The lower surface of the infusion bottle placing bin (1) is connected with a supporting frame (14), and the rudder (11) is clamped in the supporting frame (14).

7. The automatic infusion based pen needle device of claim 6, wherein: The top of the supporting frame (14) is provided with a shell (17), the top of the rudder (11) is inserted into the shell (17), and the shell (17) is connected with the limiting frame (15).

Images