CN219022679U

CN219022679U - Valve type backflow prevention venous indwelling needle

Info

Publication number: CN219022679U
Application number: CN202221943852.0U
Authority: CN
Inventors: 王芳; 黄丹
Original assignee: Neijiang City Dongxing District People's Hospital
Current assignee: Neijiang City Dongxing District People's Hospital
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-05-16
Anticipated expiration: 2032-07-26

Abstract

The utility model provides a valve type backflow prevention venous indwelling needle, which can limit the blood return position of blood to the crotch of an indwelling needle with larger tube diameter, and reduce the coagulation phenomenon; and reduced the use of buckle, reduced patient's uncomfortable sense, this venous indwelling needle includes: the device comprises an indwelling needle body and a connecting hose, wherein a moving interval consisting of two sealing rings is arranged at the inlet of a bifurcation pipeline of the indwelling needle body, and a V-shaped valve is arranged below the moving interval; one end of the connecting hose is provided with a bullet-shaped connector, the outer wall of the connector is provided with a plugging ring, and the plugging ring is arranged in the moving interval; the end connection rigid pipe body of connector, the connector link up with rigid pipe body, and the outer wall of rigid pipe body and the top of bifurcation pipeline are connected through elastic membrane material.

Description

Valve type backflow prevention venous indwelling needle

Technical Field

The utility model relates to the field of medical instruments, in particular to a valve type backflow prevention venous indwelling needle.

Background

The detaining needle in the prior art is provided with a buckle on the connecting hose for opening and releasing the connecting hose, after the detaining needle is inserted into a human body, blood can flow into the connecting hose with smaller pipe diameter, thrombus is formed at the connecting hose easily due to coagulation of the blood for a long time, transfusion of a patient is affected, the existence of the buckle is also frequently hooked on clothes, the detaining needle of the patient is involved, and back pain is caused.

Disclosure of Invention

The utility model aims to provide a valve type anti-reflux venous indwelling needle which can limit the blood return position of blood to the bifurcation of an indwelling needle with a larger tube diameter, so as to reduce the coagulation phenomenon; but also reduces the use of the buckle and the uncomfortable feeling of the patient.

Embodiments of the present utility model are implemented as follows:

a valve-type anti-reflux venous indwelling needle, comprising: the device comprises an indwelling needle body and a connecting hose, wherein a moving interval consisting of two sealing rings is arranged at the inlet of a bifurcation pipeline of the indwelling needle body, and a V-shaped valve is arranged below the moving interval; one end of the connecting hose is provided with a bullet-shaped connector, the outer wall of the connector is provided with a plugging ring, and the plugging ring is arranged in the moving interval; the end connection rigid pipe body of connector, the connector link up with rigid pipe body, and the outer wall of rigid pipe body and the top of bifurcation pipeline are connected through elastic membrane material.

In a preferred embodiment of the present utility model, the connecting hose further includes a hose body and a Y-joint, wherein one end of the hose body is connected to the rigid pipe body; the Y-shaped joint is connected with the other end of the hose body.

In a preferred embodiment of the present utility model, the venous indwelling needle further comprises a puncture needle, the puncture needle is inserted from the linear pipeline of the indwelling needle body and is penetrated out of the linear pipeline, and the puncture needle is detachably connected with the indwelling needle body.

In a preferred embodiment of the present utility model, the venous indwelling needle further includes a needle cap provided at a needle tip portion of the venous indwelling needle, and the needle cap is detachably connected to the indwelling needle body.

The embodiment of the utility model has the beneficial effects that: the valve type anti-reflux venous indwelling needle comprises a V-shaped valve at the inlet of a bifurcation pipeline of an indwelling needle body, a connecting hose is connected at the inlet of the V-shaped valve, the connecting hose comprises a bullet-shaped connector and a hard tube body connected with the connector, when the indwelling needle is inserted into a blood vessel, a puncture needle is withdrawn, and the V-shaped valve at the moment isolates blood and prevents the blood from entering the hose body; when the transfusion is required to be opened, the hard tube body is held, the connector breaks the sealing of the V-shaped valve, the liquid medicine is smoothly led into the blood vessel, when the transfusion is not required, the connector is drawn out, the V-shaped valve is reset, and the blood is prevented from flowing out, so that the blood return can be effectively prevented, and the comfort level of a patient can be improved due to the buckle-free design.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a valve-type anti-reflux venous indwelling needle according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of an embodiment of the present utility model at a bifurcated conduit position A;

FIG. 3 is a schematic view of the structure of the connector of the present utility model when it passes through the V-valve;

FIG. 4 is a schematic view showing the planar structure of a V-shaped valve according to an embodiment of the present utility model

Fig. 5 is a schematic plan view of a V-valve according to an embodiment of the present utility model after being pressed.

Icon: 110-needle cap; 120-puncture needle; 130-indwelling needle body; 140-connecting a hose; 131-linear type pipeline; 132-bifurcated tubing; 133-a sealing ring; a 134-V valve; 135-pressing area; 141-a connector; 142-rigid tubing; 143-hose body; 144-Y-shaped joint; 145-blocking ring; 146-anti-slip particles; 147-elastic film material; 148-connection handle.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

First embodiment

Referring to fig. 1-5, the present embodiment provides a valve-type anti-reflux venous indwelling needle, which includes: needle cap 110, puncture needle 120, retention needle body 130 and coupling hose 140, retention needle body 130 comprises linear type pipeline 131 and Y-shaped pipeline of branching pipeline 132 together. Wherein the puncture needle 120 is inserted from the end of the linear pipe 131 and is penetrated out of the soft needle tube of the indwelling needle body 130, the puncture needle 120 is detachably connected with the indwelling needle body 130, and after the needle application is completed, the puncture needle 120 is withdrawn, and the soft needle tube of the indwelling needle body 130 is left in the body. A connection hose 140 is connected at the bifurcated conduit 132 for infusion. The needle cap 110 is used for protecting the needle tip portion of the intravenous indwelling needle, and the needle cap 110 is detachably connected with the indwelling needle body 130.

In this embodiment, a moving region composed of two sealing rings 133 is disposed at the inlet of the bifurcated conduit 132 of the indwelling needle body 130, a plurality of V-shaped valves 134 are disposed below the moving region, a pressing region 135 is disposed outside the V-shaped valves 134, the pressing region 135 is made of silica gel, and after the pressing region 135 is pressed, a through hole of the V-shaped valve 134 is opened.

The connection hose 140 includes a connector 141, a rigid pipe body 142, a hose body 143, and a Y-joint 144 connected in sequence.

The connector 141 is arranged in the bifurcation pipeline 132, the connector 141 is bullet-shaped, the outer wall of the connector 141 is provided with a plugging ring 145, the plugging ring 145 is arranged in the moving section, and the outer wall of the connector 141 is also provided with raised anti-slip particles 146; the end part of the connector 141 is connected with the hard pipe body 142, the connector 141 is communicated with the hard pipe body 142, and the outer wall of the hard pipe body 142 is connected with the top of the bifurcation pipe 132 through an elastic membrane 147; the end of the rigid tube 142 is provided with a stem 148 that facilitates the pushing in of the connector 141.

When the transfusion is not performed, the pressing area 135 is not pressed, the V-shaped valve 134 is in a one-way closed state, and the blood is at most at the position of the bifurcation tube 132, so that the blood cannot flow into the thinner connecting hose 140, and thrombus is prevented from being formed. During transfusion, the thumb and the middle finger pinch the pressing area 135, the forefinger pushes the connecting handle 148 to drive the connecting head 141 to move downwards, and the sealing state of the V-shaped valve 134 is broken for transfusion operation.

In summary, in the valve type anti-reflux venous indwelling needle according to the present utility model, the V-shaped valve 134 is connected to the inlet of the bifurcated pipe 132 of the indwelling needle body 130, the connecting hose 140 is connected to the inlet of the V-shaped valve 134, the connecting hose comprises a bullet-shaped connector 141 and a rigid tube 142 connected to the connector 141, after the indwelling needle is inserted into a blood vessel, the puncture needle 120 is withdrawn, and the V-shaped valve 134 isolates blood at this time, preventing blood from entering the hose body 143; when the transfusion is required to be opened, the hard tube body 142 is held, the connector 141 breaks the sealing of the V-shaped valve 134, the liquid medicine is smoothly led into the blood vessel, when the transfusion is not required, the connector 141 is drawn out, the V-shaped valve 134 is reset, and the blood is prevented from flowing out, so that the blood return can be effectively prevented, and the comfort level of a patient can be improved without a buckle design.

This description describes examples of embodiments of the utility model and is not intended to illustrate and describe all possible forms of the utility model. It should be understood that the embodiments in the specification may be embodied in many alternate forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present utility model. Those skilled in the art will appreciate that a plurality of features illustrated and described with reference to any one drawing may be combined with features illustrated in one or more other drawings to form embodiments not explicitly illustrated or described. The illustrated combination of features provides representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of the present utility model may be used in particular applications or implementations as desired.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A valve-type anti-reflux venous indwelling needle, characterized in that the venous indwelling needle comprises: the device comprises an indwelling needle body, wherein a moving interval consisting of two sealing rings is arranged at the inlet of a bifurcation pipeline of the indwelling needle body, and a V-shaped valve is arranged below the moving interval;

the connecting hose is characterized in that one end of the connecting hose is provided with a bullet-shaped connector, the outer wall of the connector is provided with a plugging ring, and the plugging ring is arranged in the moving section; the end part of the connector is connected with the hard pipe body, the connector is communicated with the hard pipe body, and the outer wall of the hard pipe body is connected with the top of the bifurcation pipeline through an elastic membrane material.

2. The valve-type anti-reflux venous indwelling needle according to claim 1, wherein said connecting hose further comprises:

the hose body, one end of the said hose body connects the said hard tube body;

the Y-shaped connector is connected with the other end of the hose body.

3. The valve-type anti-reflux venous indwelling needle according to claim 1, further comprising:

the puncture needle is inserted from the linear pipeline of the indwelling needle body and penetrates out of the linear pipeline, and the puncture needle is detachably connected with the indwelling needle body.

4. The valve-type anti-reflux venous indwelling needle according to claim 1, further comprising a needle cap provided at a needle tip portion of said venous indwelling needle, said needle cap being detachably connected to said indwelling needle body.