Plugging structure for infusion apparatus

Abstract

The plugging structure comprises an extension plate, a needle withdrawing assembly is installed at the bottom of the extension plate, the needle withdrawing assembly comprises two pressing rods rotationally connected to the two sides of the outer wall of the bottom of the extension plate, and one end of the bottom of each pressing rod is rotationally connected with a connecting frame; one ends of the bottoms of the two connecting frames are rotationally connected together, the two connecting frames are arranged in an inclined state all the time, an extension shaft is coaxially fixed to rotating shafts of the two connecting frames, the extension shaft is rotationally sleeved with an ejector rod, one end of the top of the ejector rod is slidably inserted into an extension plate, and the whole ejector rod is arranged in a vertical state. According to the infusion set, due to the fact that the needle withdrawing assembly is arranged, needle pushing work is more convenient after a puncture head completely enters an infusion bottle, it is guaranteed that fingers of medical staff cannot touch the puncture head, and the infusion set is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a plug-in structure for an infusion set. Background Art

[0002] An infusion set is a common medical consumable. After being sterilized, it establishes a channel between the vein and the medicine and is used for intravenous infusion. When in use, the liquid in the infusion bottle or bag is hung high, and the infusion set needle is pierced through the bottle cap of the infusion bottle or bag, and the friction between the infusion set needle and the bottle cap of the infusion bottle or bag is used to fix the liquid.

[0003] After searching, a utility model with Chinese patent publication number CN215231029U discloses an infusion pump that is easy to operate, including an infusion pump, and a sterile packaging bag is arranged on the infusion hose of the infusion pump; the sterile packaging bag includes two layers of packaging sheets that are laminated together, and a accommodating cavity for accommodating a break-type alcohol swab is formed between the two layers of packaging sheets.

[0004] For example, the puncture head of the infusion set mentioned above, during the process of replacing the infusion bottle, since the puncture head is completely inserted into the infusion bottle, the friction between the puncture head and the bottle cap makes it difficult to pull out the puncture head. During the replacement, the medical staff's fingers will inevitably touch the puncture head, which also poses a health hazard. Utility Model Content

[0005] The purpose of the utility model is to provide a plug-in structure for an infusion set to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plug-in structure for an infusion set, comprising an extension plate, characterized in that a needle withdrawal assembly is installed at the bottom of the extension plate, and the needle withdrawal assembly includes two pressing rods rotatably connected to the outer wall of the bottom of the extension plate on both sides, and one end of the bottom of the two pressing rods is rotatably connected to a connecting frame, one end of the bottom of the two connecting frames is rotatably connected together, and the two connecting frames are always set in an inclined state, and the two connecting frames are coaxially fixed with an extension shaft on the rotating shaft of the two connecting frames, and the extension shaft is rotatably sleeved with a push rod, and one end of the top of the push rod is slidably inserted in the extension plate, and the push rod is set in a vertical state as a whole.

[0007] As a further preferred embodiment of the present technical solution, a push plate is fixedly connected to the outer wall of the top of the push rod.

[0008] This makes it easier to push the needle after the puncture head is completely inserted into the infusion bottle, and ensures that the medical staff's fingers will not touch the puncture head, making the infusion device more convenient to use. When the infusion bottle needs to be replaced, the limiting plate is first moved away from the outer wall of the bottle mouth. As long as the bottom ends of the two pressing rods are squeezed, the two connected connecting frames will be folded, and the extension axis at the connection between the two connecting frames will also move upward accordingly. The top rod restricted by the extension plate will also move synchronously with the extension axis. At this time, the distance between the push plate and the extension plate will also increase accordingly, and the puncture head will gradually separate from the bottle mouth of the infusion bottle.

[0009] As a further preferred embodiment of the present technical solution, a reinforcement assembly is installed on the top of the push plate, and the reinforcement assembly includes a vertical plate fixedly connected to one end of the top outer wall of the push plate, a screw is threadedly connected to the internal part of the vertical plate, one end of the screw is rotatably connected to a limiting plate, and the bottom outer wall of the limiting plate is in contact with the top outer wall of the push plate.

[0010] As a further preferred embodiment of the present technical solution, the limiting plate is arranged in an arc shape as a whole, and an anti-slip pad is arranged on the concave surface of the limiting plate.

[0011] The vertical plate is aligned with the outer wall of the bottle mouth of the infusion bottle, and then the screw is rotated. The limit plate will move synchronously with the screw, and the bottom wall of the limit plate is in contact with the push plate, so the limit plate will only move horizontally. When the limit plate is squeezed on the outer wall of the bottle mouth, the effect of reinforcing the state between the puncture head and the infusion bottle can be achieved.

[0012] As a further preferred embodiment of the present technical solution, a puncture head is slidably inserted in the middle of the extension plate, a thread line is provided at the bottom of the circumferential outer wall of the puncture head, and a thread groove adapted to the thread line is provided inside the extension plate, and a limiting ring is fixedly connected to the outer wall of the bottom of the puncture head, and the diameter of the limiting ring is larger than the diameter of the puncture head.

[0013] As a further preferred embodiment of the present technical solution, a connecting tube is fixedly inserted into the outer wall of the bottom of the puncture head.

[0014] The utility model provides a plug-in structure for an infusion set, which has the following beneficial effects:

[0015] (1) The utility model provides a needle withdrawal assembly, which makes it easier to push the needle after the puncture head is completely inserted into the infusion bottle, and ensures that the fingers of medical staff will not touch the puncture head, making the use of the infusion device more convenient. When the infusion bottle needs to be replaced, the limit plate is first moved away from the outer wall of the bottle mouth. As long as the bottom ends of the two pressing rods are squeezed, the two connected connecting frames will be folded, and the extension shaft at the connection of the two connecting frames will also move upward accordingly. The top rod restricted by the extension plate will also move synchronously with the extension shaft. At this time, the distance between the push plate and the extension plate will also increase accordingly, and the puncture head will gradually separate from the bottle mouth of the infusion bottle.

[0016] (2) The utility model sets a reinforcement component, aligns the vertical plate with the outer wall of the bottle mouth of the infusion bottle, and then rotates the screw. The limit plate will move synchronously with the screw, and the bottom wall of the limit plate is in contact with the push plate. Therefore, the limit plate will only move horizontally. When the limit plate is squeezed on the outer wall of the bottle mouth, the effect of reinforcing the state between the puncture head and the infusion bottle can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of the puncture head of the utility model;

[0020] Figure 4 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] In the figure: 1. extension plate; 2. puncture head; 3. connecting tube; 4. thread line; 5. needle withdrawal assembly; 6. reinforcement assembly; 7. limit ring; 501. pressing rod; 502. connecting frame; 503. extension shaft; 504. push rod; 505. push plate; 601. vertical plate; 602. screw; 603. limit plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 2 and Figure 4 As shown, in the present embodiment, a plug-in structure for an infusion set comprises an extension plate 1, characterized in that: a needle withdrawal assembly 5 is installed at the bottom of the extension plate 1, the needle withdrawal assembly 5 comprises two pressing rods 501 rotatably connected to the outer wall of the bottom of the extension plate 1 on both sides, one end of the bottom of the two pressing rods 501 is rotatably connected to a connecting frame 502, one end of the bottom of the two connecting frames 502 is rotatably connected together, and the two connecting frames 502 are always arranged in an inclined state, the rotation axes of the two connecting frames 502 are coaxially fixed with an extension shaft 503, the extension shaft 503 is rotatably sleeved with a push rod 504, the top end of the push rod 504 is slidably inserted in the extension plate 1, and the push rod 504 is arranged in a vertical state as a whole.

[0024] The top outer wall of the push rod 504 is fixedly connected with a push plate 505, which can increase the contact area between the push rod 504 and the mouth of the infusion bottle and avoid excessive pressure generated by the push rod 504.

[0025] When the infusion bottle needs to be replaced, the limiting plate 603 is first moved away from the outer wall of the bottle mouth. As long as the bottom ends of the two pressing rods 501 are squeezed, the two connected connecting frames 502 will be folded, and the extension axis 503 at the connection between the two connecting frames 502 will also move upward accordingly. The top rod 504 restricted by the extension plate 1 will also move synchronously with the extension axis 503. At this time, the distance between the push plate 505 and the extension plate 1 will also increase accordingly, and the puncture head 2 will gradually separate from the bottle mouth of the infusion bottle.

[0026] like Figure 1 and Figure 2 As shown, a reinforcement component 6 is installed on the top of the push plate 505, and the reinforcement component 6 includes a vertical plate 601 fixedly connected to one end of the top outer wall of the push plate 505, and the vertical plate 601 is internally threaded with a screw 602, and one end of the screw 602 is rotatably connected to a limit plate 603, and the bottom outer wall of the limit plate 603 is in contact with the top outer wall of the push plate 505.

[0027] The limiting plate 603 is arranged in an arc shape as a whole, so that the contact area between the limiting plate 603 and the mouth of the infusion bottle is larger, and the concave surface of the limiting plate 603 is provided with an anti-slip gasket, which can increase the friction and help to increase the fixing effect.

[0028] By rotating the screw 602, the limit plate 603 will move synchronously with the screw 602, and the bottom wall of the limit plate 603 is in contact with the push plate 505, so the limit plate 603 will only move horizontally. When the limit plate 603 is squeezed on the outer wall of the bottle mouth, the effect of reinforcing the state between the puncture head 2 and the infusion bottle can be achieved.

[0029] like Figure 1 and Figure 3 As shown, a puncture head 2 is slidably inserted in the middle of the extension plate 1, a thread line 4 is provided at the bottom of the circumferential outer wall of the puncture head 2, and a thread groove adapted to the thread line 4 is provided inside the extension plate 1, and a limiting ring 7 is fixedly connected to the outer wall at the bottom of the puncture head 2, and the diameter of the limiting ring 7 is larger than the diameter of the puncture head 2.

[0030] The extension plate 1 is sleeved on the outside of the puncture head 2 and then rotated, and the extension plate 1 will move downward along the thread line 4 to ensure that the position of the extension plate 1 will not change arbitrarily during use, so that the device can be reused until it contacts the limit ring 7 to complete the installation work.

[0031] like Figure 1 and Figure 2 As shown, a connecting tube 3 is fixedly inserted into the outer wall of the bottom of the puncture head 2, and the puncture head 2 can be connected to the infusion set through the connecting tube 3.

[0032] The utility model provides a plug-in structure for an infusion set, and the specific working principle is as follows:

[0033] When the device is working, the extension plate 1 is first placed outside the puncture head 2 and then rotated, and the extension plate 1 will move downward along the thread line 4 to ensure that the position of the extension plate 1 will not change arbitrarily during use, so that the device can be reused until it contacts the limit ring 7 to complete the installation work.

[0034] Then the medical staff grabs the extension plate 1 and can easily insert the puncture head 2 into the infusion bottle. Finally, the vertical plate 601 will be aligned with the outer wall of the bottle mouth of the infusion bottle, and then the screw 602 is rotated, and the limiting plate 603 will move synchronously with the screw 602, and the bottom wall of the limiting plate 603 is in contact with the push plate 505, so the limiting plate 603 will only move horizontally. When the limiting plate 603 is squeezed on the outer wall of the bottle mouth, the effect of reinforcing the state between the puncture head 2 and the infusion bottle can be achieved.

[0035] When the infusion bottle needs to be replaced, the limiting plate 603 is first moved away from the outer wall of the bottle mouth. As long as the bottom ends of the two pressing rods 501 are squeezed, the two connected connecting frames 502 will be folded, and the extension axis 503 at the connection between the two connecting frames 502 will also move upward accordingly. The top rod 504 restricted by the extension plate 1 will also move synchronously with the extension axis 503. At this time, the distance between the push plate 505 and the extension plate 1 will also increase accordingly, and the puncture head 2 will gradually separate from the bottle mouth of the infusion bottle.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plug-in structure for an infusion set, comprising an extension plate (1), characterized in that: A needle withdrawal assembly (5) is installed at the bottom of the extension plate (1), and the needle withdrawal assembly (5) comprises two pressing rods (501) rotatably connected to the outer wall of the bottom of the extension plate (1) at both sides, and one end of the bottom of the two pressing rods (501) is rotatably connected to a connecting frame (502), and one end of the bottom of the two connecting frames (502) is rotatably connected together, and the two connecting frames (502) are always arranged in an inclined state, and the rotation axes of the two connecting frames (502) are coaxially fixed with an extension shaft (503), and the extension shaft (503) is rotatably sleeved with a push rod (504), and one end of the top of the push rod (504) is slidably inserted in the extension plate (1), and the push rod (504) is arranged in a vertical state as a whole.

2. The plug-in structure for an infusion set according to claim 1, characterized in that: A push plate (505) is fixedly connected to the outer wall of the top of the push rod (504).

3. The plug-in structure for an infusion set according to claim 2, characterized in that: A reinforcement component (6) is installed on the top of the push plate (505), and the reinforcement component (6) includes a vertical plate (601) fixedly connected to one end of the top outer wall of the push plate (505), and the vertical plate (601) is internally threadedly connected to a screw rod (602), and one end of the screw rod (602) is rotatably connected to a limit plate (603), and the bottom outer wall of the limit plate (603) is in contact with the top outer wall of the push plate (505).

4. The plug-in structure for an infusion set according to claim 3, characterized in that: The limiting plate (603) is arranged in an arc shape as a whole, and a non-slip pad is arranged on the concave surface of the limiting plate (603).

5. The plug-in and pull-out structure for an infusion set according to claim 1, characterized in that: A puncture head (2) is slidably inserted in the middle of the extension plate (1), a thread line (4) is provided at the bottom of the circumferential outer wall of the puncture head (2), and a thread groove adapted to the thread line (4) is provided inside the extension plate (1), and a limiting ring (7) is fixedly connected to the outer wall at the bottom of the puncture head (2), and the diameter of the limiting ring (7) is larger than the diameter of the puncture head (2).

6. The plug-in and pull-out structure for an infusion set according to claim 5, characterized in that: A connecting tube (3) is fixedly inserted into the outer wall of the bottom of the puncture head (2).

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