CN219231006U

CN219231006U - Combined type indwelling needle capable of preventing blood backflow

Info

Publication number: CN219231006U
Application number: CN202222479000.7U
Authority: CN
Inventors: 陈晓雪
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-06-23
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a combined type indwelling needle for preventing blood backflow, which comprises a hanging water pipeline, an indwelling needle head, a needle head jacket, a one-way valve, a one-hand clamp filter, a connector and a connector filter, wherein the top of the hanging water pipeline is connected with the indwelling needle head, the needle head jacket is arranged outside the indwelling needle head, the one-way valve is arranged below the indwelling needle head, the one-hand clamp filter is arranged on one side of the one-way valve, the filter is arranged outside the hanging water pipeline, the connector is connected with the bottom of the hanging water pipeline, and the connector filter is connected with the outer wall of the connector.

Description

Combined type indwelling needle capable of preventing blood backflow

Technical Field

The utility model relates to the field of medical indwelling needles, in particular to a combined indwelling needle capable of preventing blood backflow.

Background

The use of the detaining needle can reduce pain and fear of needle injection caused by repeated venipuncture of the child patient, lighten the dysphoria emotion of parents, facilitate clinical medication, rescue medication of emergency and critical patients, lighten the workload of nurses and reduce pain of the child patient, so that the detaining needle is widely applied clinically, and is a special group facing the child patient, the length of the detaining time of the detaining needle and the comfort of the child patient become the most concerned problems of nurses and parents, and are also the premise of successful use and popularization of the detaining needle.

The existing anti-reflux indwelling needle cannot well prevent reflux, and under the condition that the limb on the healthy side needs to be infused and blood pressure is measured at the same time, the blood can flow back to the infusion set to cause the blockage of the infusion set and the indwelling needle.

The existing retention needle only has a simple backflow prevention retention needle and a simple filtration retention needle, and does not have a product combining the two.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a combined type indwelling needle for preventing blood backflow.

However, the problem of backflow prevention cannot be completely solved, the phenomenon that blood flows back to the infusion apparatus is caused, the blood flows back to the infusion apparatus under the action of pressure, and the backflow of the blood can be well avoided by adding a one-way valve on the existing basis for preventing the backflow of the blood under the action of pressure.

Furthermore, the common transfusion device only has one filter which can only filter impurities and can not filter air, so that the common transfusion device is additionally provided with the filter, not only can filter impurities but also can filter air, and the single problem existing at present is well solved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a prevent combination formula of blood backward flow and keep somewhere needle, includes the hanging water pipe, keeps somewhere the needle syringe needle, syringe needle overcoat, the check valve, and the single hand presss from both sides the filter, connector and joint filter, the top of hanging water pipe is connected with and keeps somewhere the needle syringe needle, the outside of keeping somewhere the needle syringe needle is provided with the syringe needle overcoat, the below of keeping somewhere the needle syringe needle is provided with the check valve, one side of check valve is provided with the single hand and presss from both sides the filter, the filter is installed in the outside of hanging water pipe, the bottom of hanging water pipe is connected with the connector, be connected with joint filter on the outer wall of connector.

As a further description of the above technical solution:

the integrated connection of remaining needle syringe needle is at the top of hanging water pipe, the syringe needle overcoat cup joints in the outside of hanging water pipe, the size of syringe needle overcoat is greater than the size of remaining needle syringe needle.

As a further description of the above technical solution:

the one-way valve is integrally connected to the outer side of the hanging water pipeline, the one-way valve can only circulate unidirectionally, the circulation direction is from the connector to the needle head of the retaining needle, and the one-way valve is communicated with the hanging water pipeline.

As a further description of the above technical solution:

the single-hand clamp filter is movably connected to the outer side of the hanging water pipeline, the filter is integrally connected to the outer side of the hanging water pipeline, the size of the filter is larger than that of the hanging water pipeline, and the filter is communicated with the hanging water pipeline.

As a further description of the above technical solution:

the connector is fixedly connected to one end of the hanging water pipeline, the inside of the connector is hollow, the connector is communicated with the hanging water pipeline, and the connector filter is integrally connected to the outer wall of the connector.

The utility model has the following beneficial effects:

in the utility model, in order to reduce the times of venipuncture and relieve the pain of patients clinically, an indwelling intravenous trocar can be adopted for intravenous transfusion.

In addition, the indwelling intravenous trocar may be used by infants and elderly persons as well as other patients with difficult vascular puncture, and thus may be used for multiple infusions.

Venous indwelling needles are usually selected from the veins of the back of the hand, and then from the veins of the upper arm and lower leg and foot, but avoid the joints which are constantly active. The filtering anti-reflux retention needle is used for protecting the patient from secondary injury to the greatest extent on the basis.

The utility model discloses prevent against current effect is very good, has guaranteed under the condition that receives the pressure that blood can not backward flow, also does not have gaseous through keeping the needle and getting into the blood vessel under the condition of directly exhausting.

Drawings

FIG. 1 is a schematic view showing the overall structure of a combined indwelling needle for preventing blood reflux according to the present utility model;

fig. 2 is an enlarged view of a portion a of a combined type indwelling needle for preventing backflow of blood according to the present utility model.

Legend description:

1. hanging water pipes; 2. a needle head of the retaining needle; 3. a needle cover; 4. a one-way valve; 5. a single hand clamp; 6. a filter; 7. a connector; 8. and a joint filter.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

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 based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; 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.

Referring to fig. 1-2, one embodiment provided by the present utility model is: the utility model provides a prevent combination formula of blood backward flow and keep somewhere needle, includes hanging water pipe 1, keeps somewhere needle 2, syringe needle overcoat 3, check valve 4, single hand presss from both sides filter 5, filter 6, connector 7 and joint filter 8, the top of hanging water pipe 1 is connected with and keeps somewhere needle 2, the outside of keeping somewhere needle 2 is provided with syringe needle overcoat 3, the below of keeping somewhere needle 2 is provided with check valve 4, one side of check valve 4 is provided with single hand presss from both sides filter 5, filter 6 is installed in the outside of hanging water pipe 1, the bottom of hanging water pipe 1 is connected with connector 7, be connected with joint filter 8 on the outer wall of connector 7.

In the utility model, the detaining needle head 2 is integrally connected to the top of the hanging water pipe 1, the needle cover 3 is sleeved on the outer side of the hanging water pipe 1, the size of the needle cover 3 is larger than that of the detaining needle head 2, and the detaining needle head 2 can be pricked into a blood vessel of a patient.

Further, the check valve 4 is integrally connected to the outer side of the hanging water pipe 1, the check valve 4 can only circulate unidirectionally, the circulation direction is from the connector 7 to the retaining needle head 2, the check valve 4 is communicated with the hanging water pipe 1, and through the arrangement of the check valve 4, the hanging water pipe 1 can circulate unidirectionally, so that liquid diversion can be effectively prevented.

Further, the single-hand clamp filter 5 is movably connected to the outer side of the hanging water pipeline 1, the filter 6 is integrally connected to the outer side of the hanging water pipeline 1, the size of the filter 6 is larger than that of the hanging water pipeline 1, the filter 6 is communicated with the hanging water pipeline 1, impurities and air can be filtered through the arrangement of the filter 6, and the influence of the outside on a human body can be discharged.

Further, connector 7 fixed connection is in the one end of hanging water pipe 1, the inside of connector 7 is hollow, connector 7 and hanging water pipe 1 are the intercommunication, connect filter 8 integration and connect on the outer wall of connector 7, through the setting of connector 7, can be in the same place with infusion pipeline connection.

Working principle and using flow: a one-way valve is additionally arranged in the middle of a common retaining needle, and a filter is additionally arranged behind the one-way valve, so that the blood can be prevented from flowing back to cause the blocking of the retaining needle and the filter, and air, glass fragments and particles can be prevented from entering blood vessels.

The user can directly use, and can ensure that blood can not flow back under the condition of being under pressure, and gas can not pass through the indwelling needle and enter the blood vessel under the condition of directly exhausting.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a prevent combination formula of blood backward flow and keep somewhere needle, includes hanging water pipeline (1), keeps somewhere needle syringe needle (2), syringe needle overcoat (3), check valve (4), single hand presss from both sides filter (5), filter (6), connector (7) and connects filter (8), its characterized in that: the utility model discloses a transfusion system, including hoist pipeline (1), connector (7) and connector (8), hoist pipeline (1) is connected with the top, the outside of hoist pipeline (1) is provided with keep somewhere needle syringe needle (2), the below of keep somewhere needle syringe needle (2) is provided with check valve (4), one side of check valve (4) is provided with single hand and presss from both sides filter (5), filter (6) are installed in the outside of hoist pipeline (1), the bottom of hoist pipeline (1) is connected with connector (7), be connected with on the outer wall of connector (7) and connect filter (8).

2. A combination needle for preventing blood flashback in accordance with claim 1, wherein: the integrated connection of keep somewhere needle syringe needle (2) is at the top of hanging water pipe (1), needle overcoat (3) cup joint in the outside of hanging water pipe (1), the size of needle overcoat (3) is greater than the size of keeping somewhere needle syringe needle (2).

3. A combination needle for preventing blood flashback in accordance with claim 1, wherein: the one-way valve (4) is integrally connected to the outer side of the hanging water pipeline (1), the one-way valve (4) can only flow unidirectionally, the flowing direction is from the connector (7) to the indwelling needle head (2), and the one-way valve (4) is communicated with the hanging water pipeline (1).

4. A combination needle for preventing blood flashback in accordance with claim 1, wherein: the single-hand clamp filter (5) is movably connected to the outer side of the hanging water pipeline (1), the filter (6) is integrally connected to the outer side of the hanging water pipeline (1), the size of the filter (6) is larger than that of the hanging water pipeline (1), and the filter (6) is communicated with the hanging water pipeline (1).

5. A combination needle for preventing blood flashback in accordance with claim 1, wherein: the connector (7) is fixedly connected to one end of the hanging water pipeline (1), the inside of the connector (7) is hollow, the connector (7) is communicated with the hanging water pipeline (1), and the connector filter (8) is integrally connected to the outer wall of the connector (7).