CN209316675U - A kind of anti-backflow reverse choke device - Google Patents

Abstract

The utility model discloses a kind of reverse flow plugs of anti-blood back, it is related to the field of medical instrument technology, specially a kind of reverse flow plug of anti-blood back, including infusion bottle, the lower surface of infusion bottle, which is run through, piercing needle, the one end of piercing needle far from infusion bottle is through there is sealing push plate, and piercing needle is fixedly connected with the first perfusion tube far from one end of sealing push plate, and the side of the first perfusion tube is fixedly connected with snorkel.The reverse flow plug of the anti-blood back, pass through the setting of reverse flow plug, to in infusion, medical fluid enters anti-return pipe, and bullet is pushed to move to right, via the runner between bullet and anti-return tube wall, flow out anti-return pipe, when intravascular pressure is higher than pressure in infusion apparatus, blood will flow back into perfusion tube, and medical fluid then enters anti-return pipe from right side at this time, and bullet is pushed to move to left, until the disk on bullet is close to left side anti-return pipe inside pipe wall and forms sealing, and then achieve the purpose that prevent blood backflow.

Description

A kind of anti-backflow reverse choke device

technical field

The utility model relates to the technical field of medical equipment, in particular to a reverse flow preventer for preventing blood return.

Background technique

Infusion is a common treatment method clinically, and gravity infusion sets are generally used for drug delivery. During the entire infusion process, the pressure in the infusion set should be higher than the pressure in the blood vessel, so as to ensure that the medicinal liquid enters the body along the way. However, during the infusion process, the pressure in the patient's blood vessels is not constant, and may exceed the pressure in the infusion set in some cases. As a result, the blood return is blocked, which increases the pressure in the blood vessels of the upper limbs; the muscle tension of the patient causes vasoconstriction, resulting in an increase in the pressure in the blood vessels. When the pressure in the blood vessel is higher than the pressure in the infusion set, the venous blood will flow back into the infusion tube through the needle, and even reach the Murphy dropper. After the blood enters the infusion tube, tiny blood clots are often formed, which can easily cause pinhole blockage, so that the infusion needs to be punctured again, which brings pain to the patient.

Utility model content

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the utility model provides a reverse flow preventer for preventing blood return, which solves the problems raised in the above-mentioned background technology.

(2) Technical solutions

In order to achieve the above purpose, the utility model is achieved through the following technical solutions: a reverse flow preventer for preventing blood return, including an infusion bottle, a puncture needle runs through the lower surface of the infusion bottle, and the end of the puncture needle far away from the infusion bottle penetrates There is a sealing push plate, the end of the puncture needle away from the sealing push plate is fixedly connected with a first infusion tube, one side of the first infusion tube is fixedly connected with a ventilation tube, and the end of the ventilation tube away from the first infusion tube is fixed An air filter interlayer is connected, the end of the first infusion tube away from the puncture needle is fixedly connected with a Murphy dropper, and the end of the Murphy dropper away from the first infusion tube is fixedly connected with a second infusion tube, the second The outer surface of the infusion tube is movably connected with a speed regulating switch, the end of the second infusion tube away from the Murphy dropper is fixedly connected with a filter, and the side of the filter away from the second infusion tube is fixedly connected with a third infusion tube , the outer surface of the third infusion tube is sleeved with a fixing device, and the end of the third infusion tube away from the filter is fixedly connected with a reverse choke, and the end of the reverse choke away from the third infusion tube is fixedly connected There is an injection clamping part, and an injection needle is fixedly connected to the side of the injection clamping part away from the reverse flow blocker, and the outer surface of the injection needle is covered with a needle protection sleeve.

Optionally, the shape of the sealing push plate is circular, the material of the sealing push plate is plastic, and an anti-slip groove is provided on the outer surface of the sealing push plate.

Optionally, the filter includes a bottom plate, a filter screen is fixedly connected to the upper surface of the bottom plate, and a top plate is fixedly connected to a side of the filter screen away from the bottom plate, and the bottom plate and the top plate are engaged with each other.

Optionally, the fixing device includes a fixing plate, a through hole is opened on one side of the upper surface of the fixing plate, and a first fixing tape is fixedly connected to one side of the through hole, and the first fixing tape is far away from the through hole. One side of the observation window is fixedly connected with an observation window, and the side of the observation window away from the first fixing tape is fixedly connected with a second fixing tape.

Optionally, the reverse choke includes an anti-backflow pipe, a cone is arranged inside the anti-backflow pipe, and a disc is fixedly connected to one side of the outer surface of the cone, and the cone is far away from the side of the disc. There are several tentacles fixedly connected on one side.

Optionally, the needle protection cover includes a protective cover, an annular sealing ring is fixedly connected to one side inside the protective cover, and a fixed block is fixedly connected to the other side inside the protective cover, and one side of the fixed block Lap with alcohol cotton.

(3) Beneficial effects

The utility model provides a reverse choke for preventing blood return, which has the following beneficial effects:

1. The anti-backflow reverse flow device is set through the cooperation between the cone, the disc and the antenna, so that during the infusion, the liquid medicine enters the anti-reflux tube, and pushes the cone to move to the right, passing through the cone and the anti-reflux tube. The flow channel between the tube walls flows out of the anti-reflux tube. When the pressure in the blood vessel is higher than the pressure in the infusion set, the blood will flow back into the infusion tube. At this time, the liquid medicine enters the anti-reflux tube from the right side and pushes the cone Move to the left until the disk on the cone is close to the inner wall of the left anti-backflow tube to form a seal, thereby preventing blood backflow.

2. The anti-blood return reverse flow device, through the setting of the fixing device, can fix the fixing plate on the hand through the first fixing tape and the second fixing tape on the fixing device during infusion, so that it is not easy for the personnel to use the injection needle when they are active. In addition, the setting of the observation window on the fixing device makes it easy for medical staff to observe whether there is any abnormality at the connection of the injection needle, thereby achieving the effect of being easy to fix and observe.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the top view structure of the fixing device of the present invention;

Fig. 3 is the schematic diagram of the front view section structure of the utility model reverse spoiler;

Fig. 4 is a front view sectional structure schematic diagram of the needle protective sleeve of the present invention.

In the figure: 1-infusion bottle, 2-puncture needle, 3-sealing push plate, 4-first infusion tube, 5-ventilation tube, 6-air filter interlayer, 7-Murphy dropper, 8-second infusion tube , 9-speed control switch, 10-filter, 1001-bottom plate, 1002-filter screen, 1003-top plate, 11-third infusion tube, 12-fixing device, 1201-fixing plate, 1202-through hole, 1203-the first 1 fixed tape, 1204-observation window, 1205-second fixed tape, 13-reverse choke, 1301-backflow prevention tube, 1302-cone, 1303-disc, 1304-tentacles, 14-injection clamping parts, 15-injection needle, 16-needle protective sleeve, 1601-protective sleeve, 1602-ring sealing ring, 1603-fixing block, 1604-alcohol cotton.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Please refer to Fig. 1 to Fig. 4, the utility model provides a technical solution: a kind of anti-blood return reverse flow blocker, including infusion bottle 1, the lower surface of infusion bottle 1 is pierced with puncture needle 2, and puncture needle 2 is far away from infusion bottle 1 One end of the seal push plate 3 runs through, the shape of the seal push plate 3 is circular, the material of the seal push plate 3 is plastic, and the outer surface of the seal push plate 3 is provided with an anti-skid groove, and the puncture needle 2 is far away from the seal push plate 3 One end is fixedly connected with the first infusion tube 4, and one side of the first infusion tube 4 is fixedly connected with a ventilation tube 5, and the end of the ventilation tube 5 away from the first infusion tube 4 is fixedly connected with an air filter interlayer 6, and the first infusion tube 4 is far away from One end of the puncture needle 2 is fixedly connected with a Murphy dropper 7, and one end of the Murphy dropper 7 away from the first infusion tube 4 is fixedly connected with a second infusion tube 8, and the outer surface of the second infusion tube 8 is movably connected with a speed regulating switch 9. The end of the second infusion tube 8 away from the Murphy dropper 7 is fixedly connected with a filter 10, the filter 10 includes a bottom plate 1001, the upper surface of the bottom plate 1001 is fixedly connected with a filter 1002, and the side of the filter 1002 away from the bottom plate 1001 The top plate 1003 is fixedly connected, and the bottom plate 1001 and the top plate 1003 are engaged with each other. The side of the filter 10 away from the second infusion tube 8 is fixedly connected with the third infusion tube 11, and the outer surface of the third infusion tube 11 is sleeved with a fixing device. 12. The fixing device 12 includes a fixing plate 1201, one side of the upper surface of the fixing plate 1201 is provided with a through hole 1202, and one side of the through hole 1202 is fixedly connected with a first fixing tape 1203, and the first fixing tape 1203 is far away from the side of the through hole 1202. The side is fixedly connected with an observation window 1204, and the side of the observation window 1204 away from the first fixing tape 1203 is fixedly connected with a second fixing tape 1205. Through the setting of the fixing device 12, the first fixing tape 1203 is passed on the fixing device 12 during infusion. and the second fixing adhesive tape 1205 to fix the fixing plate 1201 on the hand, so that the personnel are not easy to drop and move the injection needle 15 during activities. In addition, the setting of the observation window 1204 on the fixing device 12 makes it easy for the medical staff to observe the injection needle 15 Whether there is any abnormal situation at the joint, so as to achieve the effect of being easy to fix and observe. The end of the third infusion tube 11 away from the filter 10 is fixedly connected with a reverse flow blocker 13, and the reverse flow blocker 13 includes an anti-reflux pipe 1301. A conical body 1302 is arranged inside the anti-reflux pipe 1301, a disc 1303 is fixedly connected to one side of the outer surface of the conical body 1302, and a plurality of antennae 1304 are fixedly connected to the side of the conical body 1302 away from the disc 1303, through the conical body 1302, The cooperation between the disc 1303 and the tentacles 1304 is arranged so that during the infusion, the liquid medicine enters the backflow prevention tube 1301 and pushes the cone 1302 to move to the right, through the flow channel between the cone 1302 and the wall of the backflow prevention tube 1301, When the blood flows out of the anti-reflux tube 1301, when the pressure in the blood vessel is higher than the pressure in the infusion set, the blood will flow back into the infusion tube. At this time, the liquid medicine will enter the anti-reflux tube from the right tube 1301, and push the cone 1302 to move left until the disk 1303 on the cone 1302 is close to the inner wall of the left backflow prevention tube 1301 to form a seal, thereby preventing the blood from flowing back, and the reverse flow blocker 13 is far away from the third infusion solution One end of the tube 11 is fixedly connected with an injection clamping part 14, and the side of the injection clamping part 14 away from the reverse flow blocker 13 is fixedly connected with an injection needle 15, and the outer surface of the injection needle 15 is covered with a needle protection sleeve 16, the needle protection sleeve 16 includes a protective cover 1601, one side of the protective cover 1601 is fixedly connected with an annular sealing ring 1602, and the other side of the protective cover 1601 is fixedly connected with a fixed block 1603, and one side of the fixed block 1603 is overlapped with alcohol cotton 1604. The setting of the needle protection sheath 16 can sterilize the injection needle 15 through the alcohol cotton 1604 in the needle sheath 16, and then play the role of sterilization and disinfection.

As a preferred technical solution of the present invention: the surface of the injection clamping part 14 is fixedly connected with a rubber pad.

To sum up, when the anti-backflow anti-reverse flow device is used, it is set through the cooperation between the cone 1302, the disc 1303 and the antenna 1304, so that during infusion, the liquid medicine enters the anti-reflux tube 1301 and pushes the cone 1302 moves to the right, and flows out of the anti-reflux tube 1301 through the channel between the cone 1302 and the wall of the anti-reflux tube 1301. When the pressure in the blood vessel is higher than the pressure in the infusion set, the blood will flow back into the infusion tube. At this time, the medicine The liquid enters the anti-reflux tube 1301 from the right side, and pushes the cone 1302 to move left until the disk 1303 on the cone 1302 is close to the inner wall of the left anti-reflux tube 1301 to form a seal, thereby preventing the blood from flowing back. The setting of the fixing device 12 enables the fixing plate 1201 to be fixed on the hands by the first fixing adhesive tape 1203 and the second fixing adhesive tape 1205 on the fixing device 12 during infusion, so that it is difficult for the personnel to drop and move the injection needle 15 during activities. In addition, the setting of the observation window 1204 on the fixing device 12 makes it easy for the medical staff to observe whether there is any abnormality at the joint of the injection needle 15, thereby achieving the effect of easy fixing and observation.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In this utility model, unless otherwise clearly specified and limited, terms such as "installation", "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection, or It can be a detachable connection or integrated; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

It should be noted that, in the present utility model, unless otherwise specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature "on" or "under" the second feature. The two features are in indirect contact through an intermediary. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. A reverse flow preventer for preventing blood return, comprising an infusion bottle (1), characterized in that: a puncture needle (2) runs through the lower surface of the infusion bottle (1), and the puncture needle (2) is far away from the infusion bottle One end of (1) is penetrated with a sealing push plate (3), and the end of the puncture needle (2) away from the sealing push plate (3) is fixedly connected with a first infusion tube (4), and the first infusion tube (4) One side of the ventilation tube (5) is fixedly connected with an air filter interlayer (6) away from the end of the first infusion tube (4), and the first infusion tube (4) is away from the puncture One end of the needle (2) is fixedly connected with a Murphy dropper (7), and the end of the Murphy dropper (7) away from the first infusion tube (4) is fixedly connected with a second infusion tube (8). The outer surface of the second infusion tube (8) is movably connected with a speed regulating switch (9), and the end of the second infusion tube (8) away from the Murphy dropper (7) is fixedly connected with a filter (10). The side of the device (10) away from the second infusion tube (8) is fixedly connected with a third infusion tube (11), and the outer surface of the third infusion tube (11) is sleeved with a fixing device (12). The end of the three infusion tubes (11) far away from the filter (10) is fixedly connected with a reverse choke (13), and the end of the reverse choke (13) away from the third infusion tube (11) is fixedly connected with an injection clamp part (14), the injection clamping part (14) is fixedly connected with an injection needle (15) on the side away from the reverse flow blocker (13), and the outer surface of the injection needle (15) is covered with a needle protection sleeve ( 16). 2. A reverse choke device for preventing blood return according to claim 1, characterized in that: the shape of the sealing push plate (3) is circular, the material of the sealing push plate (3) is plastic, and The outer surface of the sealing push plate (3) is provided with an anti-slip groove. 3. The anti-reverse choke device according to claim 1, characterized in that: the filter (10) comprises a bottom plate (1001), and the upper surface of the bottom plate (1001) is fixedly connected with a filter screen ( 1002), the side of the filter screen (1002) away from the bottom plate (1001) is fixedly connected with a top plate (1003), and the bottom plate (1001) and the top plate (1003) are engaged with each other. 4. The anti-reverse choke device according to claim 1, characterized in that: the fixing device (12) includes a fixing plate (1201), and one side of the upper surface of the fixing plate (1201) is provided with A through hole (1202), one side of the through hole (1202) is fixedly connected with a first fixing tape (1203), and the side of the first fixing tape (1203) away from the through hole (1202) is fixedly connected with an observation window (1204), the side of the observation window (1204) away from the first fixing tape (1203) is fixedly connected with a second fixing tape (1205). 5. A reverse choke for preventing blood return according to claim 1, characterized in that: the reverse choke (13) includes an anti-backflow pipe (1301), and the inside of the anti-backflow pipe (1301) is set There is a cone (1302), one side of the outer surface of the cone (1302) is fixedly connected with a disk (1303), and the side of the cone (1302) away from the disk (1303) is fixedly connected with several antennae (1304). 6. A reverse choke for preventing blood return according to claim 1, characterized in that: the needle protective cover (16) includes a protective cover (1601), and one side of the protective cover (1601) is fixedly connected to There is an annular sealing ring (1602), the other side inside the protective sleeve (1601) is fixedly connected with a fixed block (1603), and one side of the fixed block (1603) is lapped with alcohol cotton (1604).