CN204601258U - A kind of multi-functional remaining needle - Google Patents

Abstract

The utility model discloses a kind of multi-functional remaining needle, comprise positive pressure connector, the sidewall of described positive pressure connector is provided with calparine pipe, the sidewall of described positive pressure connector is also movably installed with blood-taking device, described blood-taking device is connected with positive pressure connector, make the standby blood sampling function of tool of needles staying on vein of the present utility model, thus the misery that minimizing patient brings due to twice puncture.

Description

A multifunctional indwelling needle

technical field

The utility model belongs to the technical field of medical instruments and relates to a multifunctional indwelling needle.

Background technique

The indwelling needle is suitable for patients who receive intermittent, continuous or daily intravenous infusion therapy, especially for sick children. Its application can reduce the pain caused by repeated venipuncture and the fear of injections in children, and reduce the anxiety of parents. Emotion is convenient for clinical medication and reduces the workload of medical staff, so it is widely used. However, before the existing indwelling needles are used, it is often necessary to collect blood from the patient. After the blood collection is completed, the indwelling needles need to be punctured in addition, and the two punctures increase the pain of the patient.

Contents of the invention

In view of the above-mentioned problems or defects in the prior art, the purpose of this utility model is to provide a multifunctional indwelling needle that can realize blood collection and drug injection with only one puncture.

In order to achieve the above object, the utility model adopts the following technical solutions:

A multifunctional indwelling needle, comprising a positive pressure joint, a heparin tube is arranged on the side wall of the positive pressure joint, and a blood collection device is movably installed on the side wall of the positive pressure joint, and the blood collection device and the positive pressure joint connected.

Further, a side tube is provided on the side wall of the positive pressure joint, and the two are in communication; the side tube is detachably connected to the blood collection device.

Specifically, the blood collection device includes a blood collection needle and a blood collection tube;

The blood collection needle includes a needle holder, the rubber puncture needle and the blood collection needle are respectively connected to both ends of the needle holder, and both ends of the needle holder are provided with external threads;

The port of the blood collection tube is provided with an internal thread that matches the external thread of the needle seat connected to one end of the rubber puncture needle, and the rubber puncture needle extends into the inside of the blood collection tube;

The port of the side tube is provided with an internal thread that matches the external thread of the needle seat connected to one end of the blood collection needle, and the blood collection needle extends into the side tube.

Further, a needle tube is fixed inside the needle seat of the blood collection needle, and the needle tube is filled with heparin. the other end of the pin seat.

Further, an openable and closable valve is arranged in the positive pressure joint and the heparin tube.

Specifically, the valve includes a sphere, a through hole is arranged in the sphere along the axial direction, a rotating shaft is fixedly connected to the sphere, and one end of the rotating shaft protrudes from the positive pressure joint or the side wall of the heparin tube, and is connected to the knob.

Further, a sealing block is provided between the rotating shaft, the positive pressure joint and the heparin tube, and the two sealing blocks are fixedly connected to the side wall of the positive pressure joint and the side wall of the heparin tube respectively, and the rotating shaft passes through The sealing block, and the rotating shaft can rotate relative to the sealing block.

Compared with the prior art, the utility model has the following technical effects:

1. A blood collection device is movably installed on the side wall of the positive pressure joint, so that the indwelling needle of the present utility model has the function of blood collection, thereby reducing the pain caused by the two punctures of the patient.

2. A needle tube with heparin is installed in the needle seat of the blood collection needle to prevent blood coagulation in time, and the operation is simple and convenient.

3. There is a valve inside the positive pressure connector and the heparin tube to prevent the blood from flowing into the positive pressure connector and the heparin tube, so that the blood can completely flow into the side tube, which can shorten the blood collection process.

Description of drawings

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

Fig. 2 is a schematic diagram of the structure of the blood drawing needle;

Fig. 3 is a structural schematic diagram when the axis of the through hole of the valve coincides with the axis of the pipe body;

Fig. 4 is a structural schematic diagram when the axis of the through hole of the valve is perpendicular to the axis of the pipe body;

The symbols in the figure represent: 1—positive pressure connector, 2—valve, 3—heparin tube, 4—side tube, 5—blood collection needle, 6—blood collection tube, 7—sealing block, 2-1—sphere, 2-2— Through hole, 2-3—rotating shaft, 2-4—knob, 5-1—needle seat, 5-2—blood collection needle, 5-3—rubber puncture needle, 5-4—needle tube, 5-5—injection needle, 5-6—Putt.

Below in conjunction with accompanying drawing and embodiment, the scheme of the utility model is further explained and described in detail.

Detailed ways

According to the above technical scheme, see Fig. 1, the multifunctional indwelling needle of the present invention includes a positive pressure joint 1, a heparin tube 3 is arranged on the side wall of the positive pressure joint 1, and a heparin tube 3 is arranged on the side wall of the positive pressure joint 1 A blood sampling device is also movably installed, and the blood sampling device communicates with the positive pressure joint 1 . The indwelling needle of the utility model can realize the function of blood collection, thereby reducing the pain caused by two punctures of the patient.

Further, a side tube 4 is provided on the side wall of the positive pressure joint 1, and the two are connected; the side tube 4 is detachably connected with the blood collection device. The blood collection device is connected to the positive pressure joint 1 through the side tube 4, which is convenient for medical personnel to operate.

Specifically, the blood collection device includes a blood collection needle 5 and a blood collection tube 6 ; the blood collection needle 5 transports the drawn blood into the blood collection tube 6 .

The blood collection needle 5 includes a needle holder 5-1, the two ends of the needle holder 5-1 are respectively connected with a rubber puncture needle 5-3 and a blood collection needle 5-2, and both ends of the needle holder 5-1 are provided with external threads;

The port of the blood collection tube 6 is provided with an internal thread that matches the external thread of the needle base 5-1 connected to one end of the rubber puncture needle 5-3, and the rubber puncture needle 5-3 extends into the inside of the blood collection tube 6; The port of the side tube 4 is provided with an internal thread that matches the external thread of the needle holder 5-1 connected to one end of the blood collection needle 5-2, and the blood collection needle 5-2 extends into the inside of the side tube 4; the blood collection needle 5 and the Both the side pipe 4 and the blood collection tube 6 are connected by threads, which is convenient to operate and has a good sealing effect to prevent blood from flowing out.

Further, a needle tube 5-4 is fixed inside the needle base 5-1 of the blood collection needle 5, and the needle tube 5-4 is filled with heparin, and the injection needle 5-5 of the needle tube 5-4 extends out of the needle base 5 One end of -1 extends into the side tube 4, and the push rod 5-6 of the needle tube 5-4 protrudes from the other end of the needle holder 5-1. After the blood collection is finished, the heparin in the needle tube 5-4 can be pushed into the side tube 4 by the push rod 5-6 to prevent blood coagulation in time, and the operation is simple and convenient.

Further, an openable and closable valve 2 is provided in the positive pressure joint 1 and the heparin tube 3 . Specifically, the valve 2 includes a sphere 2-1, a through hole 2-2 is arranged in the sphere 2-1 along the axial direction, a rotating shaft 2-3 is fixedly connected to the sphere 2-1, and the rotating shaft 2- 3 One end protrudes from the positive pressure joint 1 or the side wall of the heparin tube 3, and connects with the knobs 2-4. The valve 2 is used to control the opening and closing of the positive pressure joint 1 and the heparin tube 3, preventing blood from flowing into the positive pressure joint 1 and the heparin tube 3, so that the blood can completely flow into the side tube 4, which can shorten the blood collection process.

Further, a sealing block 7 is arranged between the rotating shaft 2-3, the positive pressure joint 1 and the heparin tube 3, and the two sealing blocks 7 are respectively connected to the side wall of the positive pressure joint 1 and the side of the heparin tube 3. The walls are fixed, the rotating shaft 2-3 passes through the sealing block 7, and the rotating shaft 2-3 can rotate relative to the sealing block 7. The sealing block 7 is used to prevent the liquid medicine in the positive pressure joint 1 and the heparin tube 3 from overflowing from the rotating shaft 2-3 and the gap between them.

The multifunctional indwelling needle of the present utility model, its specific application process is as follows:

Before the blood collection operation, by turning the knob 2-4, the sphere 2-1 of the valve 2 is controlled to rotate, so that the axis of the through hole 2-2 on the sphere 2-1 is perpendicular to the axis of the positive pressure joint 1 or the heparin tube 3, Block positive pressure connector 1 or heparin tube 3;

Connect the blood collection tube 6 and the blood collection needle 5, connect the blood collection needle 5 to the side tube 4; perform the indwelling needle puncture operation, the blood flows into the blood collection tube 6 from the blood collection needle 5 through the side tube 4, when the required blood collection tube 6 flows into the After measuring, push the heparin in the needle tube 5-4 into the side tube 4; remove the blood collection device, and seal the side tube 4;

Turn the knob 2-4 to control the rotation of the sphere 2-1 of the valve 2, so that the axis of the through hole 2-2 on the sphere 2-1 coincides with the axis of the positive pressure joint 1 or the heparin tube 3, so that the positive pressure joint 1 or the heparin tube Tube 3 circulates.

Claims (7)

1. a multi-functional remaining needle, comprise positive pressure connector (1), the sidewall of described positive pressure connector (1) is provided with calparine pipe (3), it is characterized in that, the sidewall of described positive pressure connector (1) is also movably installed with blood-taking device, and described blood-taking device is connected with positive pressure connector (1).

2. multi-functional remaining needle as claimed in claim 1, is characterized in that, the sidewall of described positive pressure connector (1) is provided with side pipe (4), the two is connected; Described side pipe (4) and blood-taking device removably connect.

3. multi-functional remaining needle as claimed in claim 2, is characterized in that, described blood-taking device comprises blood taking needle (5) and blood taking tube (6);

Described blood taking needle (5) comprises needle stand (5-1), needle stand (5-1) two ends connect rubber puncture needle (5-3) and blood collection needles (5-2) respectively, and needle stand (5-1) two ends are provided with external screw thread;

The port of described blood taking tube (6) is provided with the female thread that the external screw thread that is connected one end of rubber puncture needle (5-3) with needle stand (5-1) matches, and it is inner that described rubber puncture needle (5-3) stretches into blood taking tube (6);

The port of described side pipe (4) is provided with the female thread that the external screw thread that is connected one end of blood collection needles (5-2) with needle stand (5-1) matches, and it is inner that described blood collection needles (5-2) stretches into side pipe (4).

4. multi-functional remaining needle as claimed in claim 3, it is characterized in that, needle stand (5-1) inside of described blood taking needle (5) is installed with a needle tubing (5-4), described needle tubing (5-4) is built with heparin, the injection needle (5-5) of described needle tubing (5-4) stretches out needle stand (5-1) one end, stretch in described side pipe (4), the push rod (5-6) of described needle tubing (5-4) stretches out needle stand (5-1) other end.

5. the multi-functional remaining needle as described in as arbitrary in Claims 1-4, is characterized in that, be provided with a valve to be opened/closed (2) in described positive pressure connector (1) and calparine pipe (3).

6. multi-functional remaining needle as claimed in claim 5, it is characterized in that, described valve (2) comprises a spheroid (2-1), a through hole (2-2) is provided with in the axial direction in described spheroid (2-1), spheroid (2-1) is fixed with a rotating shaft (2-3), positive pressure connector (1) or calparine pipe (3) sidewall are stretched out in described rotating shaft (2-3) one end, and connect knob (2-4).

7. multi-functional remaining needle as claimed in claim 6, it is characterized in that, described rotating shaft (2-3) and be provided with a sealing block (7) between positive pressure connector (1) and calparine pipe (3), sealing block (7) described in two is connected with the sidewall of positive pressure connector (1) and the sidewall of calparine pipe (3) respectively, described rotating shaft (2-3) is through sealing block (7), and rotating shaft (2-3) can be rotated relative to sealing block (7).