CN204910455U - Medical multicavity associated drainage catheter - Google Patents

Abstract

The utility model relates to a medical multi-cavity drainage catheter, comprising a tube body, characterized in that the tube body includes a drainage cavity, a drug injection cavity and a pressure measurement cavity, and the insertion end of the drainage cavity is connected to the drainage hole on the wall near the head of the tube body. Connected, the far insertion end of the drainage cavity is connected to the tube body seat; the insertion end of the drug injection cavity is connected to the perfusion hole on the wall near the head of the tube body, and the far insertion end of the drug injection cavity is connected to the perfusion tube and the one-way valve; the insertion end of the pressure measurement cavity It is connected with the pressure measuring hole at the head of the tube body, the far insertion end of the pressure measuring chamber is connected with the pressure measuring tube, and the pressure measuring tube is connected with the silicone pad and the female Luer connector. The advantages are: the pressure of the drainage site can be tested at the same time as the drainage, and drugs can be injected into the drainage site. The one-way valve can effectively prevent the drug and drainage fluid from flowing backward through the drug injection chamber. A drainage catheter can be used to realize drainage, drug injection and measurement. The pressure function simplifies the clinical operation of the medical staff, relieves the pain of the patient, and reduces the risk of the operation.

Description

Medical multi-lumen drainage catheter

technical field

The utility model belongs to the technical field of medical instruments, in particular to a medical multi-cavity drainage catheter.

Background technique

Surgical drainage is to guide the pus, blood or fluid accumulated between human tissues or body cavities to the outside of the body to prevent postoperative infection and affect wound healing. At present, there are many types of surgical drainage tubes used clinically, mainly used in wounds, chest cavity, brain cavity, gastrointestinal tract or drainage tube biliary tract and other parts. However, because the catheter used has a single drainage function, it still needs the assistance of other instruments and catheters while implementing drainage, and requires medical staff to always pay attention to parameters such as drainage pressure and drainage volume. The use of auxiliary instruments and catheters will cause secondary damage to the patient. Injuries, and even increase the risk of surgery, but also bring a lot of inconvenience to the operation of medical staff.

Contents of the invention

In order to solve the technical problems in the known technology, the utility model provides a medical multi-cavity drainage catheter with simple structure, which can avoid secondary intubation, reduce operation risk and ease the operation difficulty of medical staff.

The technical scheme that the utility model takes for solving the technical problem existing in the known technology is:

The medical multi-lumen drainage catheter includes a tube body, which is characterized in that: the tube body includes a drainage cavity, a drug injection cavity and a pressure measurement cavity, and the insertion end of the drainage cavity communicates with a drainage hole on the wall near the head of the tube body The far insertion end of the drainage cavity is connected to the tube body seat; the insertion end of the drug injection cavity is connected to the perfusion hole on the wall near the head of the tube body, and the far insertion end of the drug injection cavity is connected to the perfusion tube and the one-way valve; the pressure measurement The insertion end of the cavity communicates with the pressure measuring hole on the tube wall of the head of the tube body, and the far insertion end of the pressure measuring cavity communicates with the pressure measuring tube, and the pressure measuring tube communicates with the silicone pad and the female Luer connector.

The utility model can also adopt the following technical solutions:

The insertion end of the pressure measuring chamber is provided with at least one pressure measuring hole.

There is at least one drainage hole at the insertion end of the drainage cavity and the tube wall near the head of the tube body.

The tube body is made of silicone material

The pipe body is made of polyurethane polymer material.

The advantages and positive effects of the utility model are: because the utility model adopts the above-mentioned technical scheme, that is, the body of the medical multi-cavity drainage catheter is provided with a drainage cavity, a pressure measurement cavity and a drug injection cavity that are independent of each other, so that it has drainage, Pressure measurement and drug injection can test the pressure of the drainage site while performing drainage, and can also inject drugs into the drainage site through the drug injection cavity. Since the three cavities are independent of each other, the injected drug can At the same time, the drug injection chamber is connected to the one-way valve, which can effectively prevent the drug and drainage fluid from flowing backward through the drug injection chamber, avoid being sucked out by the drainage fluid during drug injection, avoid drug waste, and ensure the accuracy of the pressure measurement point. The pressure measuring chamber is connected to the perforated silicone pad, the female Luer connector and the perforated Luer lock nut through the pressure measuring tube. When the Luer lock nut and the female Luer connector are locked, the Luer lock nut will compress the perforated silicone pad. The small hole in the silicone pad is reduced, so that the pressure probe is tightly locked to prevent the leakage of effusion. The use of the drainage catheter can realize the functions of drainage, pressure measurement, drug injection, etc., which simplifies the operation of medical staff, relieves pain of patients, and reduces operation risks.

Description of drawings

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

Fig. 2 is a cross-sectional view along line A-A of Fig. 1 .

In the figure: 1. Drainage cavity; 2. Drug injection cavity; 3. Pressure measurement cavity; 4. One-way valve; 5. Body seat; 6. Silicone pad; 7. Female Luer connector; 9. Pressure measuring tube; 10. Filling tube; 11. Round plug; 12. Tube body; 12-1. Pressure measuring hole; 12-2. Drainage hole; 12-3. Filling hole.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present utility model, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Fig. 1 and Fig. 2, the medical multi-lumen drainage catheter includes a tube body 12, and the tube body includes a drainage cavity 1, a drug injection cavity 2 and a pressure measurement cavity 3, and the insertion end of the drainage cavity is close to the tube body head. The drainage hole 12-2 on the inner tube wall is connected, and the far insertion end of the drainage cavity is connected with the tube body seat 5. The insertion end of the drug injection cavity 2 communicates with the perfusion hole 12 - 3 on the wall near the head of the tube body, and the far insertion end of the drug injection cavity communicates with the perfusion tube 10 and the one-way valve 4 . The insertion end of the pressure measurement chamber 3 communicates with the pressure measurement hole 12-1 on the pipe wall of the pipe body head, the far insertion end of the pressure measurement chamber communicates with the pressure measurement tube 9, and the pressure measurement tube communicates with the silicone pad 6 and the female socket. A luer connector 7, the female luer connector is equipped with a luer lock female 8, and the silicone pad 6 is formed with a through hole for locking the probe. There is at least one drainage hole at the insertion end of the drainage cavity and the tube wall near the head of the tube body.

In this embodiment, at least one pressure measuring hole 12-1 is provided on the insertion end of the pressure measuring chamber 3 .

In this embodiment, there are three drainage holes on the insertion end of the drainage cavity and the tube wall near the head of the tube body.

In this embodiment, the tube body is made of silicone material, and a circular plug 11 is provided at the insertion end of the tube body.

In this embodiment, the pipe body can also be made of polyurethane polymer material.

The insertion end of the pressure measuring cavity can also be made into a balloon, and the pressure of the drainage site can be measured through the balloon and the pressure measuring hole.

The drainage chamber 1, the drug injection chamber 2 and the pressure measurement chamber 3 of the medical multi-lumen drainage catheter are all independent and do not affect each other, which can prevent the drug from being sucked out by the drainage fluid during injection, avoid drug waste, and ensure the accuracy of the pressure measurement point. accuracy. The medicine injection chamber is connected with a one-way valve to prevent backflow of medicine and liquid in the body. The pressure measuring chamber is connected with the female Luer connector, the perforated silicone pad and the perforated Luer lock nut. When the Luer lock nut and the female connector are locked, the Luer lock nut will compress the perforated silicone pad, making the silicone pad inside The small hole shrinks, locking the pressure probe tightly and preventing fluid from leaking out.

When in use, the medical staff first unpacks, sterilizes, opens the drainage site of the patient, and then puts the medical multi-lumen drainage catheter into the site to be drained. When liquid flows out of the drainage cavity, it means that the drainage catheter has been placed in place. . At this time, the wound is sutured again, the drainage catheter is fixed on the skin, and the drainage system is connected with the drainage cavity of the drainage catheter. Pass the pressure measuring probe through the Luer lock nut and the perforated silicone pad, insert it into the pressure measurement chamber, then connect the female Luer connector, the silicone pad and the Luer lock nut, and tighten the Luer lock nut on the luer lock nut until no liquid flows out, indicating that the part has been locked. If necessary, inject medicine into the drainage site through the medicine injection port.

The embodiments described in the accompanying drawings of the utility model are exemplary, and are only used for explaining the utility model, but should not be construed as limiting the utility model.

Claims (5)

1. A medical multi-lumen drainage catheter, comprising a tube body, characterized in that: the tube body includes a drainage cavity, a drug injection cavity and a pressure measurement cavity, and the insertion end of the drainage cavity is connected to the tube wall near the head of the tube body. The drainage hole of the drainage cavity is connected, and the far insertion end of the drainage cavity is connected with the tube body seat; the insertion end of the drug injection cavity is connected with the perfusion hole on the wall near the head of the tube body, and the far insertion end of the drug injection cavity is connected with the perfusion tube and the one-way valve; The insertion end of the pressure measurement chamber communicates with the pressure measurement hole on the pipe wall of the head of the pipe body, the far insertion end of the pressure measurement chamber communicates with the pressure measurement tube, and the pressure measurement tube communicates with the silicone pad and the female Luer connector. 2. The medical multi-lumen drainage catheter according to claim 1, wherein at least one pressure measuring hole is provided on the insertion end of the pressure measuring chamber. 3 . The medical multi-lumen drainage catheter according to claim 1 , wherein there is at least one drainage hole at the insertion end of the drainage cavity and the tube wall near the head of the tube body. 4 . 4. The medical multi-lumen drainage catheter according to claim 1, wherein the tube body is made of silicone material. 5. The medical multi-lumen drainage catheter according to claim 1, wherein the tube body is made of polyurethane polymer material.