CN110755698A - Abdominocentesis drainage device - Google Patents

Abstract

The invention relates to the field of medical equipment, in particular to an abdominal cavity puncture and drainage device, comprising a drainage main pipe and a puncture needle arranged inside the drainage main pipe. The drainage main pipe is a hollow structure, and an injection branch pipe, a flowmeter, a A speed control switch and a drainage branch pipe, the injection branch pipe is connected with a syringe through a one-way valve, the drainage branch pipe is connected with a drainage bag through a one-way valve, and the drainage bag is connected with a negative pressure ball through the trachea, and the negative pressure ball is connected to the an exhaust valve is provided; the tail of the puncture needle is provided with a heparin cap, the heparin cap is connected with a positioning plate through cotton threads, a pressing plate is arranged on the positioning plate, and a positioning ring is connected with the pressing plate through a telescopic rod; After the puncture needle is punctured by the positioning plate, the puncture needle is pulled out and a heparin cap is placed on the tail of the drainage main pipe. The invention has the characteristics of simple operation, high success rate of puncture, less postoperative complications and the like.

Description

A kind of abdominal puncture and drainage device

technical field

The invention relates to the field of medical equipment, in particular to an abdominal cavity puncture and drainage device.

Background technique

At present, clinically, ascites can be produced when the heart, liver, kidney, etc. have pathological changes. When the intra-abdominal fluid increases by more than 200ml, it can be regarded as a symptom. In clinical practice, while searching for the cause and symptomatic treatment, it is also necessary to drain the ascites. Doctors usually perform paracentesis on patients with ascites and drain the ascites to relieve the patient's pain. Conventional B-ultrasound-guided peritoneal puncture and drainage is inaccurate in positioning, unable to puncture deep lesions and lesions with narrow or small puncture gaps, and the success rate of the operation is low, resulting in many postoperative complications. Difficulty; after the puncture is completed, the drainage speed is not easy to grasp and control, and it is easy to cause discomfort to the patient; after the drainage is completed, if a drug needs to be injected, a second puncture has to be performed, which not only brings great difficulty to the medical staff, but also increases the difficulty of the operation. It increases the risk and pain of the patient's treatment, and it is easy to cause medical disputes.

SUMMARY OF THE INVENTION

In view of the above deficiencies in the prior art, the present invention provides an abdominal cavity puncture and drainage device, which is easy to operate, has a high puncture success rate, and has few postoperative complications.

An abdominal cavity puncture and drainage device, comprising a drainage main pipe and a puncture needle arranged inside the drainage main pipe, wherein the drainage main pipe is a hollow structure, and an injection branch pipe, a flow meter, a speed control switch and a drainage branch pipe are arranged on the drainage main pipe in sequence. The injection branch pipe is connected with a syringe through a one-way valve, the drainage branch pipe is connected with a drainage bag through the one-way valve, the drainage bag is connected with a negative pressure ball through the trachea, and an exhaust valve is arranged on the negative pressure ball;

The tail of the puncture needle is provided with a heparin cap, and the heparin cap is connected with a positioning plate by cotton thread, and the positioning plate is provided with a pressing plate, and the pressing plate is connected with a positioning ring by a telescopic rod;

After the puncture needle is punctured with the positioning plate, the puncture needle is pulled out and a heparin cap is placed on the tail of the drainage main pipe.

Preferably, a scale line is provided on the side wall of the drainage main pipe.

Preferably, the flow direction of the one-way valve on the injection branch pipe is from the injection branch pipe to the drainage main pipe, and the flow direction of the one-way valve on the drainage branch pipe is from the drainage main pipe to the drainage branch pipe.

Preferably, the puncture needle is elastic and not easily broken.

Preferably, the inner diameter of the drainage main pipe is slightly larger than the diameter of the puncture needle, and the diameter of the puncture needle is 18G-23G.

Preferably, the puncture needle is clearly visualized under ultrasonic waves.

The beneficial effects of the present invention are:

The invention takes advantage of the characteristics of the puncture needle that the diameter of the puncture needle is relatively small and can be clearly visualized under ultrasonic waves, so that the tissue damage is small and the accuracy rate is high. Into the drainage tube; the flow rate can be controlled by the drainage branch tube and the speed control switch on the drainage tube, after the drainage is completed, the drug can be injected through the injection branch tube to prevent the second puncture and relieve the pain of the patient.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, because they do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

Figure 1 is a schematic structural diagram of a peritoneal puncture and drainage needle;

Figure 2 is a schematic diagram of the collocation of a peritoneal puncture and drainage needle with a guide wire;

1- puncture needle, 101- heparin cap, 2- drainage main pipe, 201- scale line, 3- positioning plate, 301- pressing plate, 302- telescopic rod, 303- positioning ring, 304- cotton thread, 4- injection branch tube, 5 -Drainage branch, 6-check valve, 7-flow meter, 8-speed switch, 9-drainage bag, 10-trachea, 1001-valve, 11-negative pressure ball, 1101-exhaust valve.

Detailed ways

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, 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. Obviously, the described The embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

As shown in FIG. 1, an abdominal cavity puncture and drainage device includes a drainage main pipe 2 and a puncture needle 1 arranged inside the drainage main pipe 2. The drainage main pipe 2 is a hollow structure, and the inner diameter of the drainage main pipe 2 is slightly larger than the diameter of the puncture needle 1. The diameter of the needle 1 is 18G-23G. The smaller the diameter, the less damage to the tissue. The puncture needle 1 is clearly visualized under ultrasound, and the medical staff can puncture the lesion under the direct vision of the ultrasound;

The drainage main pipe 2 is provided with an injection branch pipe 4, a flow meter 7, a speed control switch 8, and a drainage branch pipe 5. The drainage branch pipe 5 is connected with a drainage bag 9 through a one-way valve 6. The flow direction of the one-way valve 6 on the drainage branch pipe 5 is: From the drainage main pipe 2 to the drainage branch pipe 5, this can prevent secondary infection from backflow. The drainage bag 9 is connected with a negative pressure ball 11 through the trachea 10. The negative pressure ball 11 is provided with an exhaust valve 1101. The negative pressure ball 11 can accelerate ascites Outflow; flowmeter 7 selects the model DK800, which can be used to observe the flow rate of ascites to control the speed control switch 8 to prevent the patient from discomfort when the flow rate is too fast, or the flow rate is too small and takes too much time;

The injection branch pipe 4 is connected with a syringe through the one-way valve 6. The flow direction of the one-way valve 6 on the injection branch pipe 4 is from the injection branch pipe 4 to the drainage main pipe 2, which can facilitate drug injection. The one-way valve 6 adopts a common medical one-way valve. ;

The tail of the puncture needle 1 is provided with a heparin cap 101, and the heparin cap 101 is connected with a positioning plate 3 through a cotton thread 304. The positioning plate 3 is provided with a pressing plate 301, and the pressing plate 301 is connected with a positioning ring 303 through a telescopic rod 302. When pressing the pressing plate 301 on the positioning plate 3, the skin is fixed by the positioning ring 303 to prevent puncture deviation due to skin relaxation.

After the puncture needle 1 is punctured with the positioning plate 3, the puncture needle 1 is pulled out and a heparin cap 101 is placed on the tail of the drainage main pipe 2 to prevent the entry of bacteria and the outflow of ascites.

working principle:

The invention takes advantage of the characteristics of a small diameter of the abdominal cavity puncture and drainage needle and less damage to the tissue, which can puncture the lesions with narrow gaps and deep positions in the process of puncturing, and avoids blind piercing and easy damage due to the thick drainage tube that cannot be used with an ultrasonic positioning frame. The shortcomings of the organs around the lesion; at the same time, the invention integrates puncture, drainage and drug injection, which reduces the workload of medical staff and the pain of patients. The invention has the characteristics of simple operation, high success rate of puncture, less postoperative complications and the like.

The above are only preferred embodiments of the patent of the present invention, and are not intended to limit the patent of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the patent of the present invention shall be included in the present invention. within the scope of protection of the invention patent.

Claims (6)

1. An abdominocentesis drainage device comprises a drainage main pipe and a puncture needle arranged inside the drainage main pipe, and is characterized in that the drainage main pipe is of a hollow structure, an injection branch pipe, a flowmeter, a speed regulating switch and a drainage branch pipe are sequentially arranged on the drainage main pipe, the injection branch pipe is connected with an injector through a one-way valve, the drainage branch pipe is connected with a drainage bag through the one-way valve, the drainage bag is connected with a negative pressure ball through a trachea, and the negative pressure ball is provided with an exhaust valve;

the tail part of the puncture needle is provided with a heparin cap, the heparin cap is connected with a positioning plate through a cotton thread, the positioning plate is provided with a pressing plate, and the pressing plate is connected with a positioning ring through a telescopic rod;

after the puncture needle completes puncture by using the positioning plate, the puncture needle is pulled out, and a heparin cap is covered on the tail part of the drainage main pipe.

2. The laparoscopic puncture drainage device according to claim 1, wherein: and the side wall of the drainage main pipe is provided with scale marks.

3. The laparoscopic puncture drainage device according to claim 1, wherein: the flow direction of the check valve on the injection branch pipe is from the injection branch pipe to the drainage main pipe, and the flow direction of the check valve on the drainage branch pipe is from the drainage main pipe to the drainage branch pipe.

4. The laparoscopic puncture drainage device according to claim 1, wherein: the puncture needle is elastic and not easy to break.

5. The laparoscopic puncture drainage device according to claim 1, wherein: the inner diameter of the drainage main pipe is slightly larger than the diameter of the puncture needle, and the diameter of the puncture needle is 18-23G.

6. The laparoscopic puncture drainage device according to claim 1, wherein: the puncture needle can be clearly developed under ultrasonic waves.

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