CN211244811U - Integrated device for draining effusion in drainage operation area - Google Patents

Abstract

The utility model belongs to the field of medical instruments, in particular to an integrated device for drainage of fluid in an operation area. The integrated device comprises: a puncture needle (5), which has a needle core (5-2), a needle (5-3) and a sleeve (5-1), and the needle (5-3) is arranged on the The end of the needle core (5-2), the sleeve (5-1) is sleeved on the outside of the needle core (5-2), exposing the needle (5-3), the sleeve (5-1) The side wall of ‑1) is provided with several side holes (5‑1‑1); Y-shaped connection port (6); elastic seal (7); butterfly wing device (8); negative pressure drainage device (4) . For the first time, the utility model designs an integrated device for special drainage area effusion, which is convenient for users to use directly without assembly, improves drainage efficiency, deepens drainage depth, and is not easy to be blocked.

Description

An integrated device for drainage of fluid in the area

technical field

The utility model belongs to the field of medical devices, in particular to an integrated device for fluid accumulation in a drainage area.

Background technique

Postoperative breast cancer patients, such as poor drainage and poor fit of the skin flap, will cause fluid accumulation in the surgical area, which is not conducive to postoperative wound healing. At present, there is no special tool in the field of breast cancer surgery to solve the postoperative fluid accumulation in the patient's operation area. Manually connect the indwelling needle to the negative pressure drainage device to drain the fluid in the surgical area. However, this technology has the following problems:

1. The indwelling needle used for venipuncture and infusion is generally used to puncture superficial blood vessels. The puncture needle is relatively thin. Generally, 20G-24G needles are used in clinical practice. Blockage, need to puncture again, increase the pain of the patient;

2. The tail end of the existing venous indwelling needle is connected to the negative pressure drainage device through a Luer type joint. Because the diameter of the connecting pipe of the existing negative pressure drainage device does not match the Luer type joint, sometimes it takes several operations to connect the connection. The tube is sleeved on the Luer connector, which is time-consuming and labor-intensive to operate. At the same time, due to repeated pulling, the tube is easy to break and leak air. Repeated operations are required, which reduces the patient’s medical experience;

3. Using the existing indwelling needle, the effusion can only be drained from the tip of the cannula, which is easy to drain poorly.

In order to solve the above problems, the present invention is proposed.

Utility model content

The utility model provides an integrated device for drainage of fluid in the area, the integrated device includes:

The puncture needle 5 has a needle core 5-2, a needle head 5-3 and a cannula 5-1, the needle head 5-3 is arranged at the end of the needle core 5-2, and the cannula 5-1 is set Outside the needle core 5-2, the needle head 5-3 is exposed, and several side holes 5-1-1 are provided on the side wall of the cannula 5-1;

The Y-shaped connection port 6 has two side ports a, b and a tail port c, one side port a is connected to the tail of the sleeve 5-1, and the other side port b is connected to one end of the connecting pipe 3;

An elastic seal 7, which is arranged inside the tail port c of the Y-shaped connection port 6, elastically seals the tail port c;

The butterfly wing device 8 is fixed at the tail of the needle core 5-2 and the needle core 5-2 passes through one side port a of the Y-shaped connection port 6, the tail port c and the elastic seal piece 7;

The negative pressure drainage device 4 is connected with the other end of the connecting pipe 3 .

Preferably, the length of the puncture needle 5 is 4-6 cm.

Preferably, the inner diameter of the needle 5-3 is 1.6-3.43 mm, the outer diameter is 2.11-4.19 mm, and the inner diameter of the cannula 5-1 is 2.11-4.19 mm.

Preferably, the inner diameter of the connecting pipe 3 is 4-5 mm.

Preferably, the connection or connection is a fixed connection. The fixed connection realizes an integrated design, which is convenient for users to use directly without assembly.

Preferably, the inner diameter of one side port a of the Y-shaped connection port 6 is greater than or equal to the inner diameter of the sleeve 5-1.

Preferably, the tail end portion of the sleeve 5-1 and the bypass pipe in the middle portion of the tail end form the Y-shaped connection port 6.

Preferably, one side port a of the Y-shaped connection port 6 includes a section of gradually expanding pipe.

Preferably, the specifications of the needles 5-3 are 8G-14G. In this industry, the inner diameter of the needle core 5-2 and the cannula 5-1 can be determined according to the specification of the needle 5-3 being 8G-14G.

Preferably, the negative pressure drainage device 4 is a negative pressure ball.

Preferably, the elastic sealing member 7 is a silicone sponge block or a resin block.

Preferably, the angle between the two side ports a and b of the Y-shaped connection port 6 is greater than 90 degrees.

The second aspect of the present utility model provides a method for draining fluid in a drainage area, which uses the integrated device described in the first aspect of the present utility model, and uses the butterfly wing device 8 to pierce the puncture needle 5 from outside the patient's skin. The whole body pierces the skin of the patient to the effusion area, pulls the butterfly wing device 8 to pull out the needle core 5-2, and indwells the cannula 5-1 in the effusion area, the elastic The seal 7 naturally seals the cannula 5-1, and then the negative pressure drainage device 4 is turned on, and the fluid in the patient's effusion region passes through the tip of the cannula 5-1 and the cannula 5 -1 The side hole 5-1-1 on the side wall flows into the sleeve 5-1, and then flows through the Y-shaped connecting port 6 and the connecting pipe 3 in sequence, and flows into the negative pressure drainage device 4.

The above operations are completed in one go, reducing the operation steps and saving time.

A third aspect of the present invention provides the use of the integrated device for fluid accumulation in the drainage area described in the first aspect for accelerating fluid accumulation in the drainage fluid and avoiding obstruction.

Preferably, the third aspect of the present invention provides an integrated device for drainage of fluid in the first aspect, which is specially used for the drainage of fluid in the drainage area after breast cancer surgery.

The above technical scheme has the following beneficial effects:

The utility model is the first to design an integrated device for drainage of fluid in the area of drainage, which is convenient for users to use directly without assembly, and avoids the inconvenience of using the existing venous indwelling needle tail end to connect the negative pressure drainage device through a Luer joint. It also has the following advantages:

(1) Due to the small diameter of the existing indwelling needle cannula, it is inconvenient to artificially indwell the side hole, and the indwelling side hole tube is easy to break, requiring surgical operation to remove the tube, which increases the patient's pain and also produces negative emotions. In the utility model, the inner diameter of the cannula of the puncture needle is set to 2.11-4.19 mm, and several side holes are arranged on the side wall to increase the efficiency and range of drainage without leaving "dead space". The integrated device for drainage of fluid in the drainage area of the present invention is not limited to be exclusively used for fluid in the drainage area after breast cancer surgery, and can be applied to any occasion that requires fluid drainage in the body.

(2) In the preferred technical solution, the needle of the existing puncture needle is thickened, and the needle of 8G-14G specification is designed for clinical reagent operation selection according to the range of fluid accumulation in the operation area, so as to increase the drainage efficiency.

(3) In the preferred technical solution, the length of the puncture needle is increased, the original length of the puncture needle is about 2.5cm, and the length of the needle head of the puncture needle is designed to be 4-6cm in the present invention to increase the depth of drainage.

(4) In the preferred technical solution, a Y-shaped connection port is designed at the tail of the puncture needle, and the angle between the two side ports of the Y-shaped connection port is greater than 90 degrees, which can increase the drainage efficiency, and at the same time, the Y-shaped angle can be adjusted, which is convenient for installation external fixation.

(5) In the preferred technical solution, the inner diameter of one side port of the Y-shaped connection port is larger than the inner diameter of the sleeve or includes a section of gradually expanding pipe, which facilitates the rapid outflow of the effusion and can increase the drainage efficiency.

Description of drawings

FIG. 1 is a schematic diagram of an integrated device for drainage of fluid in the drainage area of Example 2. FIG.

FIG. 2 is a schematic diagram of another integrated device for drainage of fluid in the drainage area shown in Example 2. FIG.

3 is a histogram of the probability of blockage when the simulated effusion sample is drained using the existing combined drainage device described in Example 1 and the “integrated” drainage device described in Example 2 in Example 3.

List of reference numbers:

3. Connecting tube, 4. Negative pressure drainage device, 5. Puncture needle, 5-1, cannula, 5-2, needle core, 5-3, needle, 5-1-1, side hole, 6, Y type Connection port, 7. Elastic seal, 8. Butterfly wing device.

Detailed ways

The content of the present utility model is further described below through specific embodiments.

Example 1

Existing IV catheters consist of needle guards, catheters, metal wedges, catheter hubs, needle tubes, isolation plugs, needle wing hubs, needle tip protection sleeves, extension tubes, large/small tube closure clips, straight or Y-type luer fittings , heparin cap (1/2) and/or MaxZeroTM positive pressure needleless connector (1/2) and/or end cap.

The original drainage device belongs to a combined device, which requires an existing venous indwelling needle, and the tail end is connected with a negative pressure drainage device through a Luer-type connector and a connecting tube.

Example 2

The utility model provides an integrated device for drainage of fluid in the area, as shown in Figure 1, the integrated device includes:

The puncture needle 5 has a needle core 5-2, a needle head 5-3 and a cannula 5-1, the needle head 5-3 is arranged at the end of the needle core 5-2, and the cannula 5-1 is set Outside the needle core 5-2, the needle head 5-3 is exposed, and several side holes 5-1-1 are provided on the side wall of the cannula 5-1;

The Y-shaped connection port 6 has two side ports a, b and a tail port c, one side port a is connected to the tail of the sleeve 5-1, and the other side port b is connected to one end of the connecting pipe 3;

An elastic seal 7, which is arranged inside the tail port c of the Y-shaped connection port 6, elastically seals the tail port c;

The butterfly wing device 8 is fixed at the tail of the needle core 5-2 and the needle core 5-2 passes through one side port a of the Y-shaped connection port 6, the tail port c and the elastic seal piece 7;

The negative pressure device 4 is connected with the other end of the connecting pipe 3 .

Wherein, the length of the needle core 5-2 and the sleeve 5-1 are both 5cm;

The inner diameter of the needle 5-3 is 3.43mm, the outer diameter is 4.19mm,

The inner diameter of the sleeve 5-1 is 4.19 mm, and a total of 12 side holes 5-1-1 are evenly arranged on both sides of the side wall; the inner diameter of the connecting pipe 3 is 5 mm. The connection or connection is a fixed connection.

The elastic sealing member 7 is a resin block. The negative pressure device 4 is a negative pressure ball.

One side port a of the Y-shaped connection port 6 includes a section of gradually expanding pipe with an inner diameter of 4.19 mm to 5 mm.

The inner diameter of the other side port b and the tail port c of the Y-shaped connection port 6 is 5 mm.

The operation method of the above-mentioned integrated device is as follows:

During operation, the medical staff uses the butterfly wing device 8 to pierce the puncture needle 5 as a whole into the patient's skin to the fluid accumulation area from the outside of the patient's skin, and pulls the butterfly wing device 8 to pull out the needle core 5-2. out, the cannula 5-1 is left in the fluid accumulation area, the elastic seal 7 naturally seals the cannula 5-1, and then the negative pressure drainage device 4 is opened, and the patient accumulates The accumulated fluid in the fluid area flows into the cannula 5-1 through the tip of the cannula 5-1 and the side hole 5-1-1 on the side wall of the cannula 5-1, and then flows through the cannula 5-1 in turn. The Y-shaped connecting port 6 and the connecting pipe 3 flow into the negative pressure drainage device 4 .

FIG. 2 shows a schematic diagram of another device, wherein the Y-shaped connection port 6 is formed by the tail end portion of the sleeve 5-1 and the bypass pipe b in the middle of the tail end.

In use, only the front end portion of the cannula 5-1 penetrates the patient's skin into the fluid accumulation area.

Example 3

For the simulated effusion samples after breast cancer surgery with different volumes of N1-N9, the present invention uses the original drainage device described in Example 1 and the "integrated" drainage device described in Example 2 to separate the simulated effusion samples. For drainage, the operation time is summarized as shown in Table 1 below, and the probability of blockage is summarized and calculated as shown in Figure 3.

Table 1 Operation time of the original drainage device and the "integrated" drainage device of the present invention

Therefore, the "integrated" drainage device of the present invention has higher drainage efficiency than the original drainage device, and the probability of blockage is greatly reduced.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (8)

1. The utility model provides an integrated device of drainage art district hydrops which characterized in that, integrated device includes:

the puncture needle (5) is provided with a needle core (5-2), a needle head (5-3) and a sleeve (5-1), the needle head (5-3) is arranged at the end part of the needle core (5-2), the sleeve (5-1) is sleeved outside the needle core (5-2) to expose the needle head (5-3), and the side wall of the sleeve (5-1) is provided with a plurality of side holes (5-1-1);

a Y-shaped connecting port (6) which is provided with two side ports (a, b) and a tail port (c), wherein one side port (a) is connected with the tail part of the sleeve (5-1), and the other side port (b) is connected with one end of the connecting pipe (3);

an elastic sealing member (7) which is arranged inside a tail port (c) of the Y-shaped connecting port (6) and elastically seals the tail port (c);

a wing device (8) fixed at the tail of the stylet (5-2) and the stylet (5-2) passes through one side port (a) of the Y-shaped connecting port (6), the tail port (c) and the elastic sealing element (7);

and the negative pressure drainage device (4) is connected with the other end of the connecting pipe (3).

2. The integrated device according to claim 1, characterized in that the puncture needle (5) has a length of 4-6 cm.

3. The integrated device of claim 1, wherein the needle (5-3) has an inner diameter of 1.6 to 3.43mm and an outer diameter of 2.11 to 4.19mm, and the cannula (5-1) has an inner diameter of 2.11 to 4.19 mm.

4. The integrated device according to claim 1, characterized in that the inner diameter of the connecting tube (3) is 4-5 mm.

5. The integrated device of claim 1, wherein the connection or connections are fixed connections.

6. The integrated device according to claim 1, wherein the inner diameter of one side port (a) of the Y-shaped connection port (6) is greater than or equal to the inner diameter of the cannula (5-1); or the tail end part of the sleeve (5-1) and a bypass pipeline in the middle of the tail end form the Y-shaped connecting port (6).

7. The integrated device according to claim 1, characterized in that one side port (a) of the Y-shaped connection port (6) comprises a section of divergent pipe.

8. The integrated device according to claim 1, characterized in that the angle between the two side ports (a, b) of the Y-connection port (6) is greater than 90 degrees.

Images