CN209933680U - An indwelling needle for convenient infusion - Google Patents

Abstract

The utility model discloses an indwelling needle convenient for infusion, comprising a positive pressure joint, a positive pressure valve is installed on the top of the positive pressure joint, a white end cap is installed at the middle position of one side of the positive pressure joint, and the An extension tube is connected at the middle position of the bottom of the positive pressure joint, a liquid bladder is arranged at the middle position of the extension tube, a one-hand clamp is arranged at the middle position outside the extension tube, and a tee is installed at one end of the extension tube A rigid needle is installed at one end of the three-way tube, a needle-holding handle is installed at the other end of the three-way tube, a rigid needle is installed at the middle position of the bottom of the needle-holding handle, and the rigid needle penetrates the three-way tube with catheter. The utility model can insert the steel needle into the vein, fix it with a fixing sticker, drive the steel needle through the needle holding handle, and pull the steel needle out, and at the same time, the corrugated hose is frictionally isolated when the steel needle is pulled out. plug to stretch the hose.

Description

An indwelling needle for convenient infusion

technical field

The utility model relates to the technical field of medical devices, in particular to an indwelling needle for convenient infusion.

Background technique

The use of indwelling needles can reduce the pain and fear of injections caused by repeated venipuncture, reduce the anxiety of parents, facilitate clinical medication, rescue medication for emergency and critically ill patients, reduce the workload of nurses, and reduce patient pain. Therefore, the venous indwelling needle is widely used in clinical practice. In 1962, the German Braun company invented the first indwelling needle. In the 1980s, the venous indwelling needle entered the developed countries and regions in Asia. In the 1990s, the open indwelling needle was the first to enter the Chinese operating room. Since then, since the indwelling needle can reduce the pain of multiple punctures compared with ordinary steel needles, it gradually affects the use of other departments. The size of the venous indwelling needle is carefully adjusted. Secondly, when the venous indwelling needle is in the vein, it needs to be flushed every few hours to prevent thrombosis, which increases the workload and flushing costs of medical staff. In addition, in the process of pulling out the puncture needle , Because the puncture needle is exposed, it is easy to pierce the skin of the medical staff, causing the risk of infection.

Utility model content

The purpose of the present utility model is to provide an indwelling needle that is convenient for infusion, so as to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a convenient indwelling needle for infusion, comprising a positive pressure joint, the top of the positive pressure joint is installed with a positive pressure valve, and a middle position on one side of the positive pressure joint is located. A white end cap is installed, an extension tube is connected at the middle position of the bottom of the positive pressure joint, a liquid bladder is arranged at the middle position of the extension tube, and a one-hand clamp is arranged at the middle position outside the extension tube, so One end of the extension tube is installed with a three-way tube, one end of the three-way tube is installed with a rigid needle, the other end of the three-way tube is installed with a needle-holding handle, and a rigid needle is installed at the middle position of the bottom of the needle-holding handle , and the rigid needle runs through the tee tube and the catheter, an isolation plug is installed at the middle position of the inner mound of the tee tube, the outer end of the rigid needle is provided with a hose, and the middle position of the top side of the one-hand clamp is installed A first fixing block is installed, a second fixing block is installed at the middle position of the other side of the top of the one-hand clamp, and a threaded rod is arranged on the inner side of the first fixing block and the second fixing block.

Preferably, the three-way pipe is made of transparent plastic material.

Preferably, a non-slip layer is provided on the outside of the needle handle.

Preferably, the inner sides of the first fixing block and the second fixing block are provided with internal threads that cooperate with each other on the outer sides of the threaded rods.

Preferably, the material of the hose is puncture-resistant rubber.

Preferably, physiological saline is provided inside the liquid sac.

Compared with the prior art, the beneficial effect of the present utility model is: the indwelling needle for convenient infusion, the steel needle is inserted into the vein, and fixed by a fixing sticker, the needle handle is used to drive the steel needle, and the steel needle is pulled. At the same time, when the steel needle is pulled out, the corrugated hose rubs the isolation plug, so as to stretch the hose, so as to cover the steel needle, thereby preventing the steel needle from stabbing the medical staff and causing unnecessary infection. When adjusting the dosage, the device can generate an inward force on the first fixing block and the second fixing block by rotating the threaded rod, so that the inner side of the one-hand clamp clamps the extension tube, so as to adjust the clamping During the venous indwelling needle in the vein, the device moves the one-handed clamp to the outside of the liquid bladder, and adjusts the clamping force by rotating the threaded rod, thereby The liquid capsule is compressed to squeeze out the liquid in the liquid capsule, thereby flushing the tube to prevent the occurrence of thrombus, and by rotating the threaded rod, the suction is realized.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the sectional view of the utility model;

FIG. 3 is a cross-sectional view of a support part of the present invention.

In the picture: 1. Needle handle; 2. Steel needle; 3. Catheter; 4. Tee tube; 5. Isolation plug; 6. Hose; 7. Liquid bladder; 8. One-hand clamp; 9. Extension tube; 10, positive pressure joint; 11, positive pressure valve; 12, white end cap; 13, first fixing block; 14, second fixing block; 15 threaded rod.

Detailed ways

The technical solutions in 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. Obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, an embodiment provided by the present invention: an indwelling needle for convenient infusion, comprising a positive pressure connector 10, a positive pressure valve 11 installed on the top of the positive pressure connector 10, and a side of the positive pressure connector 10 A white end cap 12 is installed at the middle position of the positive pressure joint 10, an extension pipe 9 is connected at the middle position of the bottom of the positive pressure joint 10, a liquid bladder 7 is arranged at the middle position of the extension pipe 9, and a single The hand clamp 8, one end of the extension tube 9 is installed with a tee tube 4, one end of the tee tube 4 is installed with a rigid needle 2, the other end of the tee tube 4 is installed with a needle holding handle 1, and the middle position of the bottom of the needle holding handle 1 is installed A rigid needle 2 is installed, and the rigid needle 2 runs through the tee tube 4 and the catheter 3. An isolation plug 5 is installed at the middle position of the inner tube of the tee tube 4. The outer end of the rigid needle 2 is provided with a hose 6, and a one-hand clamp 8 A first fixing block 13 is installed at the middle position on one side of the top, and a second fixing block 14 is installed at the middle position on the other side of the top of the one-hand clip 8. The inner sides of the first fixing block 13 and the second fixing block 14 are provided with Threaded rod 15.

In this implementation, the tee tube 4 is made of transparent plastic material, so as to facilitate observation, the outside of the needle handle 1 is provided with a non-slip layer, so that it can play an anti-slip effect. The inner side is provided with an inner thread that cooperates with the outer side of the threaded rod 15, so that the flow rate can be changed. The material of the hose 6 is anti-puncture rubber, so as to prevent the steel needle 2 from piercing the hose 6, and the inside of the liquid bladder 7 is provided with Physiological saline, which can play the role of flushing.

Working principle: When using, insert the steel needle 2 into the vein and fix it with a fixation sticker. The needle handle 1 drives the steel needle 2 and pulls the steel needle 2 out. At the same time, the corrugated hose 6 is When the needle 2 is pulled out, the isolation plug 5 is rubbed, so that the hose 6 is stretched, so as to cover the steel needle 2, thereby preventing the steel needle 2 from stabbing the medical staff and causing unnecessary infection, and the dosage needs to be adjusted. When the threaded rod 15 is rotated, an inward force can be generated on the first fixing block 13 and the second fixing block 14, so that the inner side of the one-hand clamp clamps the extension tube 9, thereby adjusting the clamping force. , so as to change the flux of the extension tube 9. During the intravenous indwelling needle in the vein, the one-hand clamp 8 is moved to the outside of the liquid bladder 7, and the threaded rod 15 is rotated to adjust the clamping force, thereby compressing The liquid bladder 7 is squeezed out to squeeze out the liquid in the liquid bladder 7, thereby flushing the tube to prevent the occurrence of thrombus, and by rotating the threaded rod 15, the suction is realized.

For those skilled in the art, the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or scope of the present invention. Accordingly, the embodiments of the present invention are exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description, and therefore all changes that come within the meaning and range of equivalency of the claims are intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. An indwelling needle for convenient infusion, comprising a positive pressure joint (10), characterized in that: the top of the positive pressure joint (10) is installed with a positive pressure valve (11), and the positive pressure joint (10) is a A white end cap (12) is installed at the middle position of the side, an extension pipe (9) is connected at the middle position of the bottom of the positive pressure joint (10), and a liquid bladder is provided at the middle position of the extension pipe (9). (7), a one-hand clamp (8) is provided at the middle position of the outer side of the extension pipe (9), and a tee pipe (4) is installed at one end of the extension pipe (9), and the tee pipe (4) A rigid needle (2) is installed at one end of the tee tube (4), a needle holding handle (1) is installed at the other end of the three-way pipe (4), and a rigid needle (2) is installed at the middle position of the bottom of the needle holding handle (1). , and the rigid needle (2) runs through the tee tube (4) and the catheter (3), an isolation plug (5) is installed at the middle position of the inner tube of the tee tube (4), and the outer part of the rigid needle (2) One end is provided with a hose (6), a first fixing block (13) is installed at the middle position on one side of the top of the one-hand clamp (8), and a first fixing block (13) is installed at the middle position on the other side of the top of the one-hand clamp (8) A second fixing block (14) is installed, and a threaded rod (15) is provided on the inner side of the first fixing block (13) and the second fixing block (14). 2 . The indwelling needle for convenient infusion according to claim 1 , wherein the three-way tube ( 4 ) is made of transparent plastic material. 3 . 3 . The indwelling needle for convenient infusion according to claim 1 , wherein an anti-skid layer is provided on the outside of the needle holding handle ( 1 ). 4 . 4. An indwelling needle for convenient infusion according to claim 1, characterized in that: the inner sides of the first fixing block (13) and the second fixing block (14) are provided with threaded rods (15) on the inner sides of each other. mating internal thread. 5 . The indwelling needle for convenient infusion according to claim 1 , wherein the material of the hose ( 6 ) is puncture-resistant rubber. 6 . 6 . The indwelling needle for convenient infusion according to claim 1 , characterized in that: the liquid bladder ( 7 ) is provided with physiological saline inside. 7 .

Images