CN211050500U

CN211050500U - Closed straight venous indwelling needle

Info

Publication number: CN211050500U
Application number: CN201921393859.8U
Authority: CN
Inventors: 宋腾腾; 王安康
Original assignee: Jiakang Medical Equipment Qingdao Co ltd
Current assignee: Jiakang Medical Equipment Qingdao Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-07-21
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a needle is kept somewhere to closed straight type vein, concretely relates to medical instrument technical field, including the pipe seat, the inside fixed column that is provided with of pipe seat, the inside plug that sets up of fixed column, and the plug is embedded on the fixed column, the inside cavity that is provided with of plug, pipe seat one end sets up the pipe that is linked together with the cavity, and the other end of pipe is provided with the needle tubing, the pipe seat other end is provided with the needle file. The utility model discloses a be equipped with the plug, the transfusion needle can pierce the plug inside and stop in the inside cavity of plug, can avoid the transfusion needle to pierce the plug under the limiting displacement of needle file, because the inside cavity of plug is the closed, at the in-process of infusion, can effectively prevent gaseous entering vein blood vessel and avoid polluting, when the transfusion needle was extracted, the pipe can not flow out yet under the effect of plug and keep somewhere inside the pipe, can avoid cross infection.

Description

Closed straight venous indwelling needle

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, the utility model relates to a needle is kept somewhere to straight type vein of closed.

Background

The venous indwelling needle is a common medical appliance in nursing work, has the advantages of convenient use and the function of reducing the puncture times of patients, thereby reducing repeated puncture during clinical transfusion, reducing puncture pain of patients and workload of clinical nursing staff, and having wide application in current clinic. The existing venous indwelling needle generally comprises: puncture needle, indwelling needle and infusion catheter. When the indwelling needle is used, firstly, a user leads the puncture needle to be communicated with the indwelling needle to be inserted into an injection position of a patient, then the indwelling needle is led into a blood vessel of the patient through the puncture needle, and finally, the puncture needle is drawn out to lead the indwelling needle to be remained in the blood vessel of the patient and fixed by the application film. When in use, a transfusion tube is inserted into the retention needle for transfusion.

The existing venous indwelling needle is divided into a straight type and a three-way type, and in the clinical nursing work, the three-way type needs to be fixed at a plurality of positions due to the connection of hoses, so that the hoses are easy to drag and fold, and discomfort is brought to patients and even the use of the catheters is influenced; the common straight indwelling needle is open, so that the cavity of the indwelling needle is easily polluted, and the blood flows out to easily cause cross infection.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a needle is kept somewhere to closed straight type vein, through being equipped with the plug, the transfusion needle can pierce the plug inside and stop in the inside cavity of plug, can avoid the transfusion needle to pierce the plug under the limiting displacement of needle file, because the inside cavity of plug is the closed, at the in-process of infusion, can effectively prevent gaseous entering vein and avoid polluting, when the transfusion needle extracts, the pipe can not flow out yet under the effect of plug and keep somewhere inside the pipe, can avoid cross infection.

In order to achieve the above object, the utility model provides a following technical scheme: a closed straight venous indwelling needle comprises a catheter base, wherein a fixed column is arranged in the catheter base, a rubber plug is arranged in the fixed column and embedded in the fixed column, a cavity is arranged in the rubber plug, a catheter communicated with the cavity is arranged at one end of the catheter base, a needle tube is arranged at the other end of the catheter, and a needle base is arranged at the other end of the catheter base;

the needle stand and the rubber plug are located on the same horizontal line, an opening is formed in the needle stand, an elastic layer is arranged in the opening, and a socket is formed in one side, corresponding to the elastic layer, of the fixing column.

In a preferred embodiment, a funnel is arranged at the joint of the catheter holder and the catheter, the funnel is sleeved on the outer surface of the catheter, and the funnel is fixedly connected to the catheter holder.

In a preferred embodiment, the needle cannula is embedded inside the catheter.

In a preferred embodiment, the catheter surface is provided with a shield, and the shield encases the catheter and needle cannula, the shield being inserted over the catheter hub.

In a preferred embodiment, the catheter hub is provided with a needle-holding handle on its outer surface.

In a preferred embodiment, the elastic layer is made of an elastic rubber material.

In a preferred embodiment, the needle cannula is made of a polypropylene material.

In a preferred embodiment, the fixing posts are fixedly attached inside the catheter hub by means of an adhesive.

In a preferred embodiment, the cross-sectional shape of the rubber plug is provided as a cylinder.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be equipped with the plug, the transfusion needle can pierce the plug inside and stop in the cavity of plug inside, can avoid the transfusion needle to pierce the plug under the limiting displacement of needle file, because the cavity of plug inside is the closed, in the in-process of infusing, can effectively prevent gas entering vein and avoid polluting, when the transfusion needle extracts, the pipe can not flow out and keep in the pipe inside under the effect of plug yet, can avoid cross infection, compare with prior art, the utility model discloses structural design is reasonable suitable for, fixes more easily, and is small, is difficult for causing the tractive, and patient is more comfortable, can not roll over the pipe more, and adopts inclosed plug, makes blood can not flow out and keep in the pipe inside, avoids cross infection;

2. the utility model discloses a be equipped with the elastic layer, the elastic layer can avoid conveying needle to drop from the needle file firmly the fixed column with inserting transfusion needle wherein to influence the normal infusion of patient, and the elastic layer still with the inside sealing performance of pipe seat, avoid external bacterium to pollute the plug, in the plug embedded and the fixed column, can not receive exogenic action to drop from the fixed column, it is fixed comparatively firm.

Drawings

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

Fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a cross-sectional view of the rubber plug with a partially enlarged structure.

Fig. 4 is a sectional view of the needle base of the utility model with a partially enlarged structure.

Fig. 5 is a perspective view of the rubber plug structure of the present invention.

The reference signs are: 1 catheter seat, 2 fixing columns, 3 rubber plugs, 4 catheters, 5 needle tubes, 6 needle seats, 7 openings, 8 elastic layers, 9 sockets, 10 funnels, 11 protective sleeves, 12 needle holding handles and 33 cavities.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a closed straight vein indwelling needle, which comprises a catheter base 1, wherein a fixed column 2 is arranged inside the catheter base 1, a rubber plug 3 is arranged inside the fixed column 2, the rubber plug 3 is embedded in the fixed column 2, a cavity 33 is arranged inside the rubber plug 3, one end of the catheter base 1 is provided with a catheter 4 communicated with the cavity 33, the other end of the catheter 4 is provided with a needle tube 5, and the other end of the catheter base 1 is provided with a needle base 6;

the needle stand 6 and the rubber plug 3 are located on the same horizontal line, an opening 7 is formed in the needle stand 6, an elastic layer 8 is arranged in the opening 7, and a socket 9 is formed in one side, corresponding to the elastic layer 8, of the fixing column 2.

The utility model discloses a plug, including pipe seat 1, pipe 4, protective sheath 11, plug 3, funnel 10, needle tube 5, needle holder 1, needle handle 12, needle tube 5 is made by polypropylene material, 3 cross sectional shapes of plug set up to be cylindrical, the pipe seat 1 is provided with funnel 10 with pipe 4 junction, and funnel 10 cup joints at pipe 4 surface, funnel 10 fixed connection is on pipe seat 1, needle tube 5 is embedded inside pipe 4, pipe 4 surface is provided with protective sheath 11 to protective sheath 11 wraps up pipe 4 and needle tube 5, protective sheath 11 pegs graft on pipe seat 1, pipe seat 1 surface is provided with holds needle handle 12, needle tube 5 is.

As shown in fig. 1 to 5, the embodiment specifically is: when in use, the medical staff takes the protective sleeve 11 off the catheter seat 1 first, then the needle tube 5 is inserted into the venous blood vessel of the patient by the medical staff, and the catheter seat 1 is fixed on the arm of the patient through the adhesive plaster to keep the stability of the transfusion, the medical staff can insert the transfusion needle on the transfusion device into the opening 7 inside the needle seat 6 and extrude the transfusion needle, so that the grab handle on the transfusion needle is attached to the needle seat 6, thereby positioning the transfusion needle, in the process of extruding the transfusion needle, the transfusion needle can pierce the inside of the rubber plug 3 and stay in the cavity 33 inside the rubber plug 3, under the limit action of the needle seat 6, the transfusion needle can avoid the puncture the rubber plug 3 until the liquid flows out, when the transfusion needle is positioned inside the cavity 33, the transfusion needle can convey the liquid into the cavity 33, the cavity 33 is communicated with the catheter 4 and the needle tube 5, thereby conveying the liquid into the venous blood vessel, because the cavity 33 in the rubber plug 3 is closed, in the process of infusion, gas can be effectively prevented from entering the vein and pollution is avoided, when the infusion needle is pulled out, blood of the catheter 4 can not flow out under the action of the rubber plug 3 and is kept in the catheter 4, and cross infection can be avoided.

The elastic layer 8 is made of elastic rubber materials, and the fixing column 2 is fixedly connected inside the catheter base 1 through an adhesive.

As shown in fig. 3 to 4, the embodiment specifically is: the elastic layer 8 inside the opening 7 is made of elastic rubber, so that the transfusion needle inserted into the elastic layer can be firmly fixed to the column 2, the transfusion needle is prevented from falling off from the needle seat 6, normal transfusion of a patient is affected, the elastic layer 8 has sealing performance inside the catheter seat 1, the pollution of the rubber plug 3 by external bacteria is avoided, the rubber plug 3 is embedded into the fixed column 2, the falling off from the fixed column 2 under the action of external force is avoided, and the fixation is firm.

The utility model discloses the theory of operation:

referring to the attached drawings 1-5 of the specification, a medical worker can insert an opening 7 in a needle base 6 through an infusion needle on an infusion apparatus and extrude the infusion needle to enable a holding handle on the infusion needle to be attached to the needle base 6, so that the infusion needle is positioned, in the process of extruding the infusion needle, the infusion needle can penetrate into a rubber plug 3 and stay in a cavity 33 in the rubber plug 3, the rubber plug 3 can be prevented from being pierced by the infusion needle under the limiting action of the needle base 6 until liquid flows out, when the infusion needle is positioned in the cavity 33, the infusion needle can convey the liquid into the cavity 33, the cavity 33 is communicated with a catheter 4 and a needle tube 5, so that the liquid can be conveyed into a vein, and because the cavity 33 in the rubber plug 3 is closed, in the infusion process, gas can be effectively prevented from entering the vein and pollution is avoided;

referring to the attached figures 3-4 of the specification, the elastic layer 8 can firmly fix the infusion needle inserted into the elastic layer to the fixing column 2, the elastic layer 8 also has the sealing performance for the inner part of the catheter seat 1, and the rubber plug 3 is embedded into the fixing column 2 and cannot fall off from the fixing column 2 under the action of external force.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a needle is kept somewhere to closed straight type vein, includes catheter holder (1), its characterized in that: a fixing column (2) is arranged in the catheter base (1), a rubber plug (3) is arranged in the fixing column (2), the rubber plug (3) is embedded in the fixing column (2), a cavity (33) is arranged in the rubber plug (3), a catheter (4) communicated with the cavity (33) is arranged at one end of the catheter base (1), a needle tube (5) is arranged at the other end of the catheter (4), and a needle base (6) is arranged at the other end of the catheter base (1);

the needle stand (6) and the rubber plug (3) are located on the same horizontal line, an opening (7) is formed in the needle stand (6), an elastic layer (8) is arranged in the opening (7), and a socket (9) is formed in one side, corresponding to the elastic layer (8), of the fixing column (2).

2. The closed straight type venous indwelling needle according to claim 1, wherein: the connecting part of the catheter seat (1) and the catheter (4) is provided with a funnel (10), the funnel (10) is sleeved on the outer surface of the catheter (4), and the funnel (10) is fixedly connected to the catheter seat (1).

3. The closed straight type venous indwelling needle according to claim 1, wherein: the needle tube (5) is embedded in the catheter (4).

4. The closed straight type venous indwelling needle according to claim 1, wherein: the surface of the catheter (4) is provided with a protective sleeve (11), the catheter (4) and the needle tube (5) are wrapped by the protective sleeve (11), and the protective sleeve (11) is inserted into the catheter seat (1).

5. The closed straight type venous indwelling needle according to claim 1, wherein: the outer surface of the catheter seat (1) is provided with a needle holding handle (12).

6. The closed straight type venous indwelling needle according to claim 1, wherein: the elastic layer (8) is made of an elastic rubber material.

7. The closed straight type venous indwelling needle according to claim 1, wherein: the needle tube (5) is made of polypropylene material.

8. The closed straight type venous indwelling needle according to claim 1, wherein: the fixing column (2) is fixedly connected inside the catheter seat (1) through an adhesive.

9. The closed straight type venous indwelling needle according to claim 1, wherein: the cross section of the rubber plug (3) is cylindrical.