CN216824341U

CN216824341U - Infusion tube with anti-reflux function

Info

Publication number: CN216824341U
Application number: CN202122889682.4U
Authority: CN
Inventors: 张庆荣; 那世杰; 曹博强
Original assignee: Nanjing Drum Tower Hospital
Current assignee: Nanjing Drum Tower Hospital
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-06-28
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a transfusion tube with a backflow resisting function, which relates to the technical field of transfusion tubes and comprises a transfusion tube body, wherein the top end of the transfusion tube body is fixedly connected with a transfusion needle head, the surface of the transfusion tube body is provided with a fixing clamp and a transfusion kettle, the fixing clamp is clamped on the surface of the transfusion tube body, the bottom of an inner cavity of the transfusion kettle is provided with a backflow resisting device, the backflow resisting device is arranged in a hollow way and is communicated with the transfusion tube body, and one end, far away from the transfusion needle head, of the transfusion tube body is fixedly connected with a precision filter; according to the utility model, the anti-reflux device is arranged, when the liquid medicine is normally transfused, the liquid medicine can push the sealing plate downwards, a gap can be generated between the sealing plate and the fixed top plate, the liquid medicine can flow downwards along the gap, when the reflux condition occurs, the liquid medicine flows upwards to generate thrust, and meanwhile, the sealing plate can cling to the bottom surface of the fixed top plate upwards under the action of the elastic force of the elastic piece to seal the bottom surface of the fixed top plate, so that the reflux phenomenon is prevented.

Description

Infusion tube with anti-reflux function

Technical Field

The utility model relates to the field of infusion tubes, in particular to an infusion tube with a reflux-resistant function.

Background

Intravenous infusion is a method of infusing a large amount of sterile liquid, electrolyte and medicine into the body from veins by utilizing the principles of atmospheric pressure and hydrostatic pressure. Intravenous infusion of large volumes of fluid, electrolytes or blood is known as intravenous infusion. The injection site and the transfusion are different, and the injection can be classified into peripheral venous transfusion, central venous transfusion, high nutrition Transfusion (TPN), blood transfusion and the like.

At present, the phenomenon of backflow can also be generated in the process of infusion, the patient can be damaged, therefore, a person is required to nurse beside the infusion apparatus, the infusion apparatus can be adjusted in time when the backflow occurs, and meanwhile, tiny bubbles can be generated during infusion, and the bubbles easily enter the human body along with the liquid medicine, so that the patient is easily uncomfortable.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects in the prior art, the utility model aims to provide the infusion tube with the anti-reflux function, and the infusion tube is provided with the anti-reflux device, so that during normal infusion, the liquid medicine can downwards push the sealing plate, a gap can be generated between the sealing plate and the fixed top plate, the liquid medicine can downwards flow along the gap, when the counter-flow condition occurs, the liquid medicine upwards flows to generate thrust, and meanwhile, the sealing plate is upwards tightly attached to the bottom surface of the fixed top plate under the elastic action of the elastic piece to block the bottom surface, so that the counter-flow phenomenon is prevented;

The utility model is provided with the precise filter, the filter membrane is arranged on the filter plate, and the filter membrane is made of a material which is air-permeable but not water-permeable, so that tiny bubbles can be discharged, and the bubbles are prevented from entering a human body.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a transfer line with anti palirrhea function, includes the infusion body, the top fixedly connected with infusion syringe needle of infusion body, the surface of infusion body is provided with fixation clamp and infusion kettle, the fixation clamp centre gripping is provided with anti palirrhea device in the surface of infusion body, the inner chamber bottom of infusion kettle, anti palirrhea device is the cavity setting, and anti palirrhea device is the intercommunication state with the infusion body, the one end fixedly connected with precision filter of infusion syringe needle is kept away from to the infusion body, precision filter's bottom fixedly connected with gyro wheel flow regulator.

Furthermore, the anti-reflux device comprises a fixed top plate, the bottom of the fixed top plate is fixedly connected with an infusion tube, a sealing plate is arranged in the infusion tube, and the sealing plate is movably connected with the infusion tube.

Furthermore, a first through hole is formed in the center of the surface of the fixed top plate, a second through hole is formed in the center of the surface of the infusion tube, the size of the second through hole is larger than that of the first through hole, the size of the sealing plate is larger than that of the first through hole, an elastic part is fixedly connected to the bottom surface of the fixed top plate, one end, far away from the fixed top plate, of the elastic part is fixedly connected with the sealing plate, and the sealing plate is connected with the fixed top plate through the elastic part.

Furthermore, precision filter's inside wall fixedly connected with filter plate, the surface array distribution of filter plate has filtration membrane.

The utility model has the beneficial effects that:

1. according to the utility model, the anti-reflux device is arranged, when the liquid medicine is normally transfused, the liquid medicine can downwards push the sealing plate, a gap can be generated between the sealing plate and the fixed top plate, the liquid medicine can downwards flow along the gap, when the reflux condition occurs, the liquid medicine upwards flows to generate thrust, and meanwhile, the sealing plate can upwards cling to the bottom surface of the fixed top plate under the action of the elastic force of the elastic piece to block the bottom surface of the fixed top plate, so that the reflux phenomenon is prevented;

2. the utility model is provided with the precise filter, the filter membrane is arranged on the filter plate, and the filter membrane is made of a material which is air-permeable but not water-permeable, so that tiny bubbles can be discharged, and the bubbles are prevented from entering a human body.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the anti-reflux device of the present invention.

In the figure: 1. a transfusion tube body; 2. a transfusion needle head; 3. a transfusion kettle; 4. an anti-reflux device; 41. fixing a top plate; 42. an infusion cartridge; 43. a sealing plate; 44. an elastic member; 5. a precision filter; 6. a filter plate; 61. A filtration membrane; 7. a fixing clip; 8. roller flow regulator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship merely to facilitate description of the utility model and to simplify the description, and are not intended to indicate or imply that the referenced components or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be construed as limiting the utility model.

An infusion tube with anti-reflux function is disclosed, as shown in fig. 1 and fig. 2, comprising an infusion tube body 1, an infusion needle 2 fixedly connected to the top end of the infusion tube body 1 and used for being inserted into an infusion bag, a fixing clamp 7 and an infusion pot 3 are arranged on the surface of the infusion tube body 1, the fixing clamp 7 is clamped on the surface of the infusion tube body 1 and can clamp and limit the flow of the infusion tube body 1, the fixing clamp 7 is a robert clamping piece, the infusion pot 3 can be a Murphy dropper, an anti-reflux device 4 is arranged at the bottom of the inner cavity of the infusion pot 3, the anti-reflux device 4 is hollow, the anti-reflux device 4 is communicated with the infusion tube body 1, the liquid medicine can flow downwards from the anti-reflux device 4, once the reflux occurs, the liquid medicine can be directly blocked by the anti-reflux device 4, one end of the infusion tube body 1 far away from the infusion needle 2 is fixedly connected with a precision filter 5, when in infusion, micro bubbles may be generated, the precision filter 5 is specially used for discharging the micro bubbles, a roller flow regulator 8 is fixedly connected to the bottom end of the precision filter 5 and used for controlling the flow of the whole infusion pipeline, a cock luer connector (a female connector and a male connector respectively) is arranged between the infusion pot 3 and the fixing clamp 7, and a luer connector (a single female connector) is also arranged at the tail end of the precision filter 5.

The anti-reflux device 4 comprises a fixed top plate 41, a transfusion tube 42 is fixedly connected to the bottom of the fixed top plate 41, a sealing plate 43 is arranged in the transfusion tube 42, the sealing plate 43 is movably connected with the transfusion tube 42, and the sealing plate 43 is attached to the surface of the fixed top plate 41 at the beginning.

The center of the surface of the fixed top plate 41 is provided with a first through hole, the center of the surface of the infusion tube 42 is provided with a second through hole, the size of the second through hole is larger than that of the first through hole, the size of the sealing plate 43 is larger than that of the first through hole, the bottom surface of the fixed top plate 41 is fixedly connected with the elastic part 44, one end, far away from the fixed top plate 41, of the elastic part 44 is fixedly connected with the sealing plate 43, the sealing plate 43 is connected with the fixed top plate 41 through the elastic part 44, after the liquid medicine flows, the sealing plate 43 slides downwards to be opened, then the liquid medicine can flow downwards along the gap, when countercurrent is generated, a thrust force can be upwards generated, and the sealing plate 43 can be driven by the elastic part 44 to block the fixed top plate 41 to prevent countercurrent.

Precision filter 5's inside wall fixedly connected with filter 6, filter 6's surface array distributes has filtration membrane 61, and filtration membrane 61 adopts the material that the gas is not crossed the water, and when the liquid medicine flowed through precision filter 5, the bubble was discharged from filtration membrane 61, prevented that the bubble from getting into in the human body.

When using, insert infusion needle 2 in the infusion bag, then the liquid medicine is in along the 1 flow direction human body of infusion body, the liquid medicine is during anti palirrhea device 4, the liquid medicine can promote closing plate 43 lapse, thereby open anti palirrhea device 4, the liquid medicine flows down along the clearance, when appearing against the current, can produce an ascending thrust to closing plate 43, and simultaneously, closing plate 43 also can be under the elastic force of elastic component 44, the lapse, and hug closely on fixed roof 41, thereby carry out the shutoff with fixed roof 41, prevent against the current, when the liquid medicine passes through precision filter 5, little bubble passes through filtration membrane 61 and discharges, can prevent that the bubble from getting into the human body.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides an transfer line with anti palirrhea function, including infusion body (1), a serial communication port, the top fixedly connected with infusion syringe needle (2) of infusion body (1), the surface of infusion body (1) is provided with fixation clamp (7) and infusion kettle (3), fixation clamp (7) centre gripping is in the surface of infusion body (1), the inner chamber bottom of infusion kettle (3) is provided with anti reflux unit (4), anti reflux unit (4) are the cavity setting, and anti reflux unit (4) are the intercommunication state with infusion body (1), the one end fixedly connected with precision filter (5) of infusion syringe needle (2) are kept away from in infusion body (1), the bottom fixedly connected with gyro wheel flow regulator (8) of precision filter (5).

2. The infusion tube with the anti-reflux function according to claim 1, wherein the anti-reflux device (4) comprises a fixed top plate (41), a transfusion tube (42) is fixedly connected to the bottom of the fixed top plate (41), a sealing plate (43) is arranged in the transfusion tube (42), and the sealing plate (43) is movably connected with the transfusion tube (42).

3. The infusion tube with the anti-reflux function according to claim 2, wherein a first through hole is formed in the center of the surface of the fixed top plate (41), a second through hole is formed in the center of the surface of the infusion tube (42), the size of the second through hole is larger than that of the first through hole, the size of the sealing plate (43) is larger than that of the first through hole, the elastic member (44) is fixedly connected to the bottom surface of the fixed top plate (41), one end, far away from the fixed top plate (41), of the elastic member (44) is fixedly connected with the sealing plate (43), and the sealing plate (43) is connected with the fixed top plate (41) through the elastic member (44).

4. The infusion tube with anti-reflux function according to claim 1, wherein a filter plate (6) is fixedly connected to the inner side wall of the precision filter (5), and filter membranes (61) are distributed on the surface of the filter plate (6) in an array manner.