CN217592999U - An ultrasound-guided central venous puncture catheter - Google Patents

Abstract

The utility model provides an ultrasound-guided central venous puncture and placement catheter, which belongs to the technical field of medical instruments. The ultrasound-guided central venous puncture placement catheter comprises a positive pressure valve tube and a transparent three-way tube, and an input end of the positive pressure valve tube is provided with a heparin cap The outer surface of the heparin cap is fixedly connected with a first fixing ring, one side of the first fixing ring is fixedly connected with a first threaded ring, and one side of the heparin cap is provided with a first protective cover. After the utility model injects medicine into the patient through the heparin cap, a threaded connection can be made between the first threaded ring and the second threaded ring, so the first protective cover can be screwed into the heparin cap, and sealed during the process The clip can be sealed and snapped into the sealing groove, so that the first protective cover can seal and protect the heparin cap, so that the device has high safety protection for the heparin cap, and prevents the heparin cap from having external bacteria when the drug is not injected. access, and further improve the assurance of the patient's health.

Description

An ultrasound-guided central venous puncture catheter

technical field

The utility model belongs to the technical field of medical devices, in particular to an ultrasound-guided central venous puncture catheter.

Background technique

Venipuncture is a medical term, which is suitable for emergency treatment of patients who need long-term infusion but difficult to puncture due to sclerosis and collapse of peripheral veins, patients who need parenteral total intravenous nutrition, critically ill patients and patients with difficulty in blood collection. When venipuncture is used for treatment, it is necessary to use a venipuncture cannula, and the needle of the venipuncture cannula is inserted into the patient's vein, so that the venipuncture cannula can be retained in the patient's vein for a long time, which is convenient for the supply of later treatment drugs.

However, the current general venipuncture cannulae, such as the central venous puncture cannula set disclosed in Chinese Utility Model Patent Publication No. CN212700013U and an emergency large vein puncture cannulae device disclosed in Patent Publication No. CN210784587U, have low sealing protection to the needle tube. It is easy to make external bacteria come into contact with the needle tube, which increases the infectivity of the needle tube, and after many venipuncture catheters are used, most of the heparin caps on the injection end are exposed to the outside air. External bacteria enter the heparin cap, which will have a certain impact on the patient's health.

Utility model content

The purpose of the utility model is to provide an ultrasound-guided central venous puncture catheter, which aims to solve the problems of low sealing protection for the needle tube and lack of safety protection for the heparin cap in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an ultrasound-guided central venous puncture tube, comprising a positive pressure valve tube and a transparent three-way tube, the input end of the positive pressure valve tube is provided with a heparin cap, and the The outer surface of the heparin cap is fixedly connected with a first fixing ring, one side of the first fixing ring is fixedly connected with a first threaded ring, and one side of the heparin cap is provided with a first protective cover, the first protective cover One side of the transparent three-way tube is fixedly connected with a sealing strip, the output end of the transparent three-way tube is provided with a puncture needle tube, the outer surface of the transparent three-way tube is fixedly connected with a second fixing ring, and the outer surface of the second fixing ring is Several clamping blocks are fixedly connected, one side of the transparent three-way pipe is provided with a second protective cover, and one side of the second protective cover is fixedly connected with a third fixing ring.

Further, a side surface of the first fixing ring is provided with a sealing groove, and the size of the sealing groove is adapted to the sealing clip.

Further, a second threaded ring is fixedly connected to the inner wall of the first protective cover, and the sizes of the first threaded ring and the second threaded ring are matched.

Further, a non-slip rubber pad is fixedly connected to the outer surface of the first protective cover.

Further, a sealing rubber ring is fixedly connected to the outer surface of the transparent three-way pipe, and the size of the sealing rubber ring and the second protective cover is matched.

Further, the inner side surface of the third fixing ring is provided with a card slot, and the size of the card slot is adapted to the size of the card block.

Further, the inner wall of the second protective cover is provided with a disinfection sponge.

Further, the output end of the positive pressure valve pipe is provided with an extension pipe, and one end of the extension pipe is fixedly connected to the input end of the transparent three-way pipe.

Compared with the prior art, the beneficial effects of the present utility model are:

1. For this kind of ultrasound-guided central venous puncture, the utility model can be clamped into the clamping groove through the clamping block, so that the third fixing ring can be fixedly clamped to the second fixing ring, so that the second protective cover can be clamped. The fixed sleeve is connected to the outside of the puncture needle tube. During this process, the sealing rubber ring can be in sealing contact with the inner wall of the second protective cover, so that the second protective cover can play a role in sealing and protecting the puncture needle tube, and the puncture needle tube can cross In the disinfection sponge, the puncture needle tube is further sealed and antibacterial, so that the device has high-efficiency sealing protection for the puncture needle tube, greatly reduces the contact rate between external bacteria and the puncture needle tube, and increases its use safety.

2. In this type of ultrasound-guided central venous puncture and catheterization, after the utility model injects medicine into the patient through the heparin cap, a threaded connection can be made between the first threaded ring and the second threaded ring, so the first protective The cover is screwed into the heparin cap, and the sealing clip can be sealed and snapped into the sealing groove in the process, so that the first protective cover can seal and protect the heparin cap, so that the device has high safety protection against the heparin cap. It prevents external bacteria from entering the heparin cap when the drug is not injected, and further improves the assurance of the patient's health.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the front view structure schematic diagram of the present utility model;

Fig. 2 is the enlarged structural representation of A place in Fig. 1 of the present utility model;

Fig. 3 is the enlarged structural schematic diagram at B in Fig. 1 of the present utility model;

Fig. 4 is the rear view partial cross-sectional structure schematic diagram of the utility model;

Fig. 5 is the enlarged structural schematic diagram at C in Fig. 4 of the present utility model;

FIG. 6 is an enlarged schematic view of the structure at D in FIG. 4 of the present invention.

In the figure: 1. Positive pressure valve pipe; 2. Transparent three-way pipe; 3. Heparin cap; 4. The first fixing ring; 5. The first threaded ring; 6. The first protective cover; 7. The sealing clip; 8 , puncture needle; 9, the second fixing ring; 10, the clip; 11, the second protective cover; 12, the third fixing ring; 13, the sealing groove; 14, the second thread ring; 15, the non-slip rubber pad; 16, Sealing rubber ring; 17, card slot; 18, disinfection sponge; 19, extension tube.

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, rather than all the implementations. 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.

Example 1

1-6, the present utility model provides the following technical solutions: an ultrasound-guided central venous puncture catheter, comprising a positive pressure valve tube 1 and a transparent three-way tube 2, the input end of the positive pressure valve tube 1 is provided with a heparin cap 3, the outer surface of the heparin cap 3 is fixedly connected with a first fixing ring 4, one side of the first fixing ring 4 is fixedly connected with a first threaded ring 5, one side of the heparin cap 3 is provided with a first protective cover 6, the first One side of the protective cover 6 is fixedly connected with a sealing clip 7, the output end of the transparent three-way tube 2 is provided with a puncture needle tube 8, and the outer surface of the transparent three-way tube 2 is fixedly connected with a second fixing ring 9, the second fixing ring 9 A number of clamping blocks 10 are fixedly connected to the outer surface of the transparent three-way pipe 2 , a second protective cover 11 is arranged on one side of the transparent three-way pipe 2 , and a third fixing ring 12 is fixedly connected to one side of the second protective cover 11 .

In the specific embodiment of the present invention, the third fixing ring 12 can be fixedly clamped to the second fixing ring 9 by the clamping block 10 can be clamped into the clamping groove 17, so that the second protective cover 11 can be fixedly clamped. It is fixed on the transparent three-way tube 2, and the puncture needle tube 8 can be completely sheathed in the second protective cover 11, and in the process, the sealing rubber ring 16 can be in sealing contact with the inner wall of the second protective cover 11, which increases the resistance to the puncture needle tube. 8 and the puncture needle tube 8 can also traverse the disinfection sponge 18 in the second protective cover 11, which can prevent bacteria from contacting the puncture needle tube 8. After the injection to the patient is completed through the heparin cap 3, the A threaded connection can be made between the first threaded ring 5 and the second threaded ring 14, so the first protective cover 6 can be screwed into the heparin cap 3, and the sealing clip 7 can be sealed and snapped into the sealing groove 13 during this process. , so that the first protective cover 6 can seal and protect the heparin cap 3 .

Example 2

Compared with Example 1, on the basis of Example 1,

One side of the first fixing ring 4 is provided with a sealing groove 13 , and the size of the sealing groove 13 and the sealing clip 7 is matched.

In this embodiment, the sealing clip 7 can be sealed and clamped into the sealing groove 13 , so that the first protective cover 6 can seal and protect the heparin cap 3 .

Specifically, a second threaded ring 14 is fixedly connected to the inner wall of the first protective cover 6 , and the sizes of the first threaded ring 5 and the second threaded ring 14 are matched.

In this embodiment, a threaded connection can be made between the first threaded ring 5 and the second threaded ring 14 , so the first protective cover 6 can be screwed onto the heparin cap 3 .

Example 3

Compared with Example 2, on the basis of Example 2,

An anti-skid rubber pad 15 is fixedly connected to the outer surface of the first protective cover 6 .

In this embodiment, the frictional force of the first protective cover 6 can be increased by the anti-skid rubber pad 15 .

Specifically, a sealing rubber ring 16 is fixedly connected to the outer surface of the transparent three-way pipe 2 , and the size of the sealing rubber ring 16 and the second protective cover 11 is matched.

In this embodiment, the sealing performance between the transparent three-way pipe 2 and the second protective cover 11 is increased during use.

Specifically, the inner side surface of the third fixing ring 12 is provided with a clamping groove 17 , and the size of the clamping groove 17 is adapted to the clamping block 10 .

In this embodiment, the sealing rubber ring 16 can be in sealing contact with the inner wall of the second protective cover 11 to increase the sealing protection of the puncture needle tube 8 .

Specifically, the inner wall of the second protective cover 11 is provided with a disinfection sponge 18 .

In this embodiment, the puncture needle tube 8 can traverse the disinfection sponge 18 in the second protective cover 11, and the puncture needle tube 8 can be sealed and antibacterial.

Specifically, an extension pipe 19 is provided at the output end of the positive pressure valve pipe 1 , and one end of the extension pipe 19 is fixedly connected to the input end of the transparent three-way pipe 2 .

In this embodiment, the positive pressure valve pipe 1 and the transparent three-way pipe 2 can be connected through the extension pipe 19 .

The working principle and use process of the utility model: when the ultrasonic-guided central venous puncture cannula is in use, the third fixing ring 12 can be fixedly clamped to the third fixing ring 12 by clamping the clamping block 10 into the clamping groove 17 Two fixing rings 9, so that the second protective cover 11 can be fixed on the transparent three-way tube 2, and the puncture needle tube 8 can be completely sheathed in the second protective cover 11, and the sealing rubber ring 16 can be in this process. The inner wall of the second protective cover 11 is in sealing contact, which increases the sealing protection for the puncture needle tube 8, and the puncture needle tube 8 can also traverse the disinfection sponge 18 in the second protective cover 11, which can prevent bacteria from contacting the puncture needle tube 8. If the device needs to be used later, it is only necessary to remove the second protective cover 11 from the transparent three-way tube 2, and then the puncture needle tube 8 can be used to perform puncture medical treatment on the patient. If the patient is injected through the heparin cap 3 of the device, a threaded connection can be made between the first threaded ring 5 and the second threaded ring 14, so the first protective cover 6 can be screwed onto the heparin cap 3, And in this process, the sealing clip 7 can be sealed and clamped into the sealing groove 13 , so that the first protective cover 6 can seal and protect the heparin cap 3 to prevent external bacteria from entering the heparin cap 3 . The positive pressure valve tube 1 and the transparent three-way tube 2 can be connected through the extension tube 19 , the patient can be injected with medicine, and the friction force of the first protective cover 6 can be increased through the anti-skid rubber pad 15 .

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a pipe is put in supersound guide central venipuncture, includes positive pressure valve pipe (1) and transparent three-way pipe (2), its characterized in that: the input end of the positive pressure valve pipe (1) is provided with a heparin cap (3), the outer fixed surface of the heparin cap (3) is connected with a first fixing ring (4), one side of the first fixing ring (4) is fixedly connected with a first threaded ring (5), one side of the heparin cap (3) is provided with a first protective cover (6), one side of the first protective cover (6) is fixedly connected with a sealing clamping strip (7), the output end of the transparent three-way pipe (2) is provided with a puncture needle tube (8), the outer fixed surface of the transparent three-way pipe (2) is fixedly connected with a second fixing ring (9), the outer fixed surface of the second fixing ring (9) is fixedly connected with a plurality of clamping blocks (10), one side of the transparent three-way pipe (2) is provided with a second protective cover (11), and one side of the second protective cover (11) is fixedly connected with a third fixing ring (12).

2. The ultrasonic-guided central venipuncture cannula of claim 1 wherein: a sealing groove (13) is formed in one side face of the first fixing ring (4), and the sealing groove (13) is matched with the sealing clamping strip (7) in size.

3. The ultrasonic-guided central venipuncture cannula of claim 1 wherein: the inner wall of the first protective cover (6) is fixedly connected with a second threaded ring (14), and the first threaded ring (5) is matched with the second threaded ring (14) in size.

4. The ultrasonic-guided central venipuncture cannula of claim 1 wherein: the outer surface of the first protective cover (6) is fixedly connected with an anti-skidding rubber pad (15).

5. The ultrasonic-guided central venipuncture cannula of claim 1 wherein: the outer surface of the transparent three-way pipe (2) is fixedly connected with a sealing rubber ring (16), and the size of the sealing rubber ring (16) is matched with that of the second protective cover (11).

6. The ultrasonic-guided central venipuncture cannula of claim 1 wherein: a clamping groove (17) is formed in the inner side face of the third fixing ring (12), and the clamping groove (17) is matched with the clamping block (10) in size.

7. The ultrasonic-guided central venipuncture cannula of claim 1 wherein: the inner wall of the second protective cover (11) is provided with a disinfection sponge (18).

8. The ultrasonic-guided central venipuncture cannula of claim 1 wherein: the output end of the positive pressure valve pipe (1) is provided with an extension pipe (19), and one end of the extension pipe (19) is fixedly connected to the input end of the transparent three-way pipe (2).

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