CN217489434U - A switchable venous indwelling needle - Google Patents

Abstract

The utility model relates to the technical field of indwelling needles, and discloses a switchable intravenous indwelling needle. The other end of the pipe is fixedly connected with a connecting pipe for installation, the inner wall of the connecting pipe is screwed with a sealing plug for sealing, one end of the shunt pipe is fixedly connected with a hose for staying in the blood vessel, and the inner wall of the other end of the shunt pipe is inserted There is an isolation plug for sealing, and one end of the fixing block is fixedly connected with a rubber strip for improving toughness. The switchable venous indwelling needle can be re-inserted into the hose after the injection of the drug is completed through the setting of the rubber strip, and the interior of the hose can be filled, so as to prevent blood from remaining in the hose, through the setting of the needle , it can not only pierce the patient's skin, but also remove the needle in time after piercing the skin to avoid hurting the patient's blood vessels.

Description

A switchable venous indwelling needle

technical field

The utility model relates to the technical field of indwelling needles, in particular to a switchable intravenous indwelling needle.

Background technique

The use of indwelling needles can reduce the pain and fear of injections caused by repeated venipuncture in children, reduce the anxiety of parents, facilitate clinical medication, and rescue medication for critically ill patients, reduce the workload of nurses, and reduce pain in children. Therefore, intravenous indwelling needles are widely used in clinical practice. In the face of this special group of children, the length of indwelling intravenous indwelling needles and the comfort of children have become the most concerned issues for nurses and parents. premise.

The venous indwelling needle is composed of a stainless steel core, a soft outer cannula and a plastic needle seat. When puncturing, the outer cannula and the needle core are pierced into the blood vessel together. An infusion tool in which the outer cannula is left in the blood vessel for infusion.

However, after the existing indwelling needle is inserted into the venous blood vessel again, the blood will remain in the tube, and the blood cannot circulate. When the injection is performed again, it is easy to inject the stagnant blood into the blood vessel again.

Utility model content

(1) Technical problems solved

In view of the deficiencies of the prior art, the utility model provides a switchable intravenous indwelling needle, which solves the problems raised in the above-mentioned background technology.

(2) Technical solutions

In order to achieve the above purpose, the utility model is realized by the following technical solutions: a switchable intravenous indwelling needle, comprising a shunt tube with a medicine inlet opening on one side, and the inner wall of the medicine inlet is inserted with a shunt for transporting medicinal liquid. The other end of the drainage pipe is fixedly connected with a connecting pipe for installation, the inner wall of the connecting pipe is screwed with a sealing plug for sealing, and one end of the shunt pipe is fixedly connected with a sealing plug for staying in the blood vessel. A hose, the inner wall of the other end of the shunt pipe is inserted with an isolation plug for sealing, the other end of the shunt pipe is threadedly connected with a fixing block for fixing, and one end of the fixing block is fixedly connected with glue for improving toughness One end of the rubber strip is screwed with a needle for puncturing.

Optionally, the outer surface of the connecting pipe is fixedly connected with a connecting belt for connection, one end of the outer surface of the sealing plug is fixedly connected with a connecting shaft for positioning, and one end of the connecting belt is sleeved with the outer surface of the connecting shaft.

Optionally, a fixing clip for clamping is sleeved on the outer surface of the drainage tube, and a pressing rod for pressing is threaded through the outer surface of the fixing clip.

Optionally, one end of the pressing rod penetrating the fixing clip abuts against the outer wall of the drainage tube, so that the fixing clip is tightly connected to the outer wall of the drainage tube.

Optionally, the outer surface of the rubber strip is inserted into the inner wall of the isolation plug, and one end of the rubber strip passing through the isolation plug is inserted into the inner wall of the hose.

Optionally, one end of the outer surface of the shunt tube is sleeved with a protection tube for protection, and the other side of the outer surface of the shunt tube is fixedly connected with a fixing plate for holding.

(3) Beneficial effects

The utility model provides a switchable intravenous indwelling needle, which has the following beneficial effects:

1. The switchable venous indwelling needle can be re-inserted into the hose after the injection of the drug through the setting of the rubber strip, and the interior of the hose can be filled, so as to prevent blood from remaining in the hose, passing through the needle. The setting can not only pierce the patient's skin, but also remove the needle in time after piercing the skin to avoid injury to the patient's blood vessels.

2. The switchable venous indwelling needle, through the setting of the isolation plug, can seal the shunt tube in time after the rubber strip is drawn out, so as to prevent germs from entering the inside of the shunt tube, thereby improving the safety of the device. The setting of the tube can be easily connected with the needle tube, and the medicine can be injected into the body of the patient by means of the drainage tube.

Description of drawings

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

Fig. 2 is the exploded structure schematic diagram of the utility model;

Fig. 3 is the structural representation of the shunt pipe of the utility model;

Figure 4 is a schematic diagram of the structure of the connecting pipe of the present invention.

In the figure: 1, shunt pipe; 2, drug inlet; 3, drainage pipe; 4, connecting pipe; 5, sealing plug; 6, connecting belt; 7, connecting shaft; 8, fixing clip; 9, pressing rod; 10 , hose; 11, isolation plug; 12, fixed block; 13, rubber strip; 14, needle; 15, protection tube; 16, fixed plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. 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.

Please refer to FIG. 1 to FIG. 4 , the present utility model provides a technical solution: a switchable intravenous indwelling needle, comprising a shunt tube 1 with a medicine inlet 2 opened on one side, and the inner wall of the medicine inlet 2 is inserted with a The drainage tube 3 for transporting the medicinal liquid, through the cooperation of the medicine inlet 2 and the drainage tube 3, can use the drainage tube 3 to introduce the medicinal liquid into the shunt tube 1, so as to use the hose 10 to inject into the body of the patient;

The other end of the drainage pipe 3 is fixedly connected with a connecting pipe 4 for installation, the inner wall of the connecting pipe 4 is threadedly connected with a sealing plug 5 for sealing, and the outer surface of the connecting pipe 4 is fixedly connected with a connecting belt 6 for connection. One end of the outer surface of the plug 5 is fixedly connected with a connecting shaft 7 for positioning, and one end of the connecting belt 6 is sleeved with the outer surface of the connecting shaft 7. Through the setting of the connecting tube 4, it can be easily connected with the syringe, which is convenient for medical staff. The injection operation is carried out. Through the setting of the sealing plug 5, the connecting tube 4 can be sealed after the drug injection is completed. , it is convenient to seal the connecting pipe 4 in time after the injection is completed;

The outer surface of the drainage tube 3 is sleeved with a fixing clip 8 for clamping, the outer surface of the fixing clip 8 is threaded with a pressure rod 9 for pressing, and the end of the pressure rod 9 that penetrates into the fixing clip 8 abuts the drainage The outer wall of the tube 3, the fixing clip 8 is tightly connected to the outer wall of the drainage tube 3, through the setting of the fixing clip 8, it can cooperate with the pressure rod 9 to clamp the drainage tube 3, thereby controlling the drainage tube 3. speed;

One end of the shunt tube 1 is fixedly connected with a hose 10 for staying in the blood vessel, the inner wall of the other end of the shunt tube 1 is inserted with an isolation plug 11 for sealing, and the other end of the shunt tube 1 is threadedly connected with a fixing device for fixing Block 12, one end of the fixing block 12 is fixedly connected with a rubber strip 13 for improving toughness, the outer surface of the rubber strip 13 is inserted into the inner wall of the isolation plug 11, and the rubber strip 13 passes through one end of the isolation plug 11 and the inner wall of the hose 10 Plug-in, through the setting of the rubber strip 13, it can be re-inserted into the tube 10 after the injection of the drug is completed, and the interior of the tube 10 can be filled, so as to prevent blood from remaining in the tube 10, through the isolation plug 11 Setting, the shunt tube 1 can be sealed in time after the rubber strip 13 is pulled out, so as to prevent germs from entering the inside of the shunt tube 1, thereby improving the safety of the device;

One end of the rubber strip 13 is threadedly connected with a needle 14 for puncturing, one end of the outer surface of the shunt tube 1 is sleeved with a protection tube 15 for protection, and the other side of the outer surface of the shunt tube 1 is fixedly connected with a holding plate for holding 16. Through the setting of the needle 14, the skin of the patient can be pierced, and the needle 14 can be removed in time after piercing the skin to avoid injury to the blood vessel of the patient.

In the present invention, the working steps of the device are as follows:

1. First unplug the protective tube 15, insert the needle 14 into the patient's body, turn the fixing block 12, pull the rubber strip 13 to drive the needle 14 to pull out, and open the sealing plug 5;

2. Exhaust the air inside the device, insert the syringe into the connecting tube 4 after exhausting, and inject the medicine into the patient's body;

3. Turn the pressure rod 9 to adjust the cross-sectional area of the drainage tube 3, so as to adjust the feeding speed;

4. Close the sealing plug 5 again, and then insert the rubber strip 13 back into the isolation plug 11 and the inner wall of the hose 10 .

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a needle is kept somewhere to vein of switch, includes shunt tubes (1) that one side was seted up into medicine mouth (2), its characterized in that: the inner wall of advancing medicine mouth (2) is pegged graft and is had drainage tube (3) that is used for carrying the liquid medicine, the other end fixedly connected with of drainage tube (3) is used for connecting pipe (4) of installation, the inner wall threaded connection of connecting pipe (4) has sealing plug (5) that is used for sealing up, the one end fixedly connected with of shunt tubes (1) is used for staying hose (10) in the blood vessel, the inner wall of shunt tubes (1) other end is pegged graft and is had isolation stopper (11) that are used for sealing up, the other end threaded connection of shunt tubes (1) has fixed block (12) that are used for fixing, the one end fixedly connected with of fixed block (12) is used for improving adhesive tape (13) of toughness, the one end threaded connection of adhesive tape (13) has syringe needle (14) that are used for the puncture.

2. The switchable venous indwelling needle of claim 1, wherein: the outer fixed surface of connecting pipe (4) is connected with connecting band (6) that are used for connecting, the one end fixedly connected with of sealing plug (5) surface is used for connecting axle (7) of location, the one end and the connecting axle (7) surface of connecting band (6) cup joint.

3. The switchable venous indwelling needle of claim 1, wherein: the outer surface of drainage tube (3) cup joints and is used for the tight fixation clamp (8) of clamp, the surface screw thread of fixation clamp (8) is worn to be equipped with depression bar (9) that are used for compressing tightly.

4. The switchable venous indwelling needle of claim 3, wherein: one end of the compression bar (9) penetrating into the fixing clamp (8) abuts against the outer wall of the drainage tube (3), so that the fixing clamp (8) is tightly connected to the outer wall of the drainage tube (3).

5. The switchable venous indwelling needle of claim 1, wherein: the outer surface of the rubber strip (13) is inserted into the inner wall of the isolation plug (11), and the rubber strip (13) penetrates through one end of the isolation plug (11) to be inserted into the inner wall of the hose (10).

6. The switchable venous indwelling needle of claim 1, wherein: the one end of shunt tubes (1) surface has cup jointed protection tube (15) that are used for the protection, the opposite side fixedly connected with of shunt tubes (1) surface is used for handheld fixed plate (16).

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