CN212234606U - Thoracentesis drainage suction device - Google Patents

Abstract

The utility model discloses a thoracocentesis drainage suction device, which comprises a puncture needle, an elastic drainage tube and a catheter seat which is provided with a hollow cavity and is communicated with the elastic drainage tube to form a flow guide channel, wherein the catheter seat is provided with an elastic sealing blind end, the puncture needle penetrates through the elastic sealing blind end and the flow guide channel and can reciprocate and alternate along the flow guide channel, the puncture needle is attached to the inner wall of the elastic drainage tube, and a drainage interface is arranged on the catheter seat; adopt flexible hose drainage, can not cause extra injury to the suction position, reduce patient's misery, need not to carry out a lot of punctures, avoid a lot of punctures to bring misery for patient, and need not the anesthesia during puncture, can directly puncture, the body that causes feels painful little, convenient operation can avoid the side effect that the anesthesia caused, practices thrift medical expenses simultaneously.

Description

Thoracentesis drainage and suction device

technical field

The utility model relates to the field of medical instruments, in particular to a chest cavity puncture, drainage and suction device.

Background technique

Thoracentesis is a measure to relieve pleural tamponade and an important method for etiological diagnosis. When a patient has effusion or pneumothorax in the pleural cavity, it is necessary to extract the effusion or gas from the pleural cavity as soon as possible. The extraction of effusion and air extraction from the pleural cavity is one of the common clinical technical operations. In the prior art, the common drainage The puncture device is mostly composed of a needle tube and a rubber tube. With the help of an assistant, the doctor needs to connect or unplug it repeatedly for drainage or exhaust, and constantly clamp the rubber tube with a hemostatic forceps. The workload is relatively large. In addition, the doctor cannot complete it alone, and the process is cumbersome and complicated. This puncture method has the following disadvantages (1) It must be operated by two medical staff; (2) The extraction time is long, and a pleural puncture is routinely performed for at least 30 minutes, and the leakage will occur. The liquid contains a large amount of fibrin, which adheres to the syringe barrel. The suction resistance is very large, which is time-consuming and labor-intensive; (3) If you are not careful during operation, the pathogen may be splashed on or around the operator, causing iatrogenic pollution. (4) The thoracentesis needle is a rigid structure, and the puncture operation is time-consuming and laborious. The needle cannot be left in the thoracic cavity, which brings great pain to the patient when multiple punctures are required for multiple fluid extractions in critically ill patients; (5) Patients with pneumothorax With lung recruitment, the rigid puncture needle may puncture the pleura and the lung and cause re-injury; (6) Since the puncture needle is also used as a suction channel, in order to ensure smooth suction, the diameter of the puncture needle is relatively large. The wound formed during the puncture is large, which increases the pain of the patient, and anesthesia is often required during the puncture, which increases the medical expense of the patient.

Therefore, there is a need for a new type of thoracocentesis drainage and suction device, which avoids pain caused by repeated puncturing and large puncture wounds, and has the characteristics of simple operation, time-saving and labor-saving.

Utility model content

In view of this, the purpose of this utility model is to overcome the defects in the prior art, to provide a thoracocentesis drainage and suction device, a thoracocentesis drainage and suction device, to avoid repeated puncture and large puncture wounds to bring pain to the patient, and at the same time, it has the advantages of simple operation. , the feature of saving time and effort.

The thoracic cavity puncture and drainage suction device of the present invention comprises a puncture needle, an elastic drainage tube and a catheter seat with a hollow cavity and communicated with the elastic drainage tube to form a drainage channel. The catheter seat is provided with an elastic sealing blind end. The puncture needle penetrates the elastically sealed blind end and the diversion channel and can be inserted and moved reciprocally along the diversion channel, the puncture needle is arranged in contact with the inner wall of the elastic drainage tube, and a drainage interface is arranged on the catheter seat;

Further, the surface of the puncture needle is provided with a groove;

Further, the groove is arranged on the puncture needle corresponding to the elastic drainage tube;

Further, the hollow cavity of the catheter holder is set larger than the aperture diameter of the elastic drainage tube;

Further, the section of the catheter holder is tapered;

Further, the outer diameter of the open end of the elastic drainage tube is set smaller than the outer diameter of the body of the elastic drainage tube;

Further, the outer diameter of the tube body of the elastic drainage tube gradually decreases toward the open end;

Further, the inner diameter of the elastic drainage tube is 1-1.5mm;

Further, the puncture needle is provided with a needle handle;

Further, the elastic drainage tube is a silicone tube or a PVC tube.

The beneficial effects of the present utility model: the thoracic cavity puncture drainage and suction device of the present utility model adopts elastic hose for drainage, which will not cause additional damage to the suction site, reduce the pain of the patient, do not need to perform multiple punctures, and avoid multiple punctures. It brings pain to the patient, and can be directly punctured without anesthesia during puncture, which is convenient to operate, causes less somatosensory pain, is convenient to operate, can avoid side effects caused by anesthesia, and saves medical expenses at the same time.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further described:

Figure 1 is a schematic structural diagram of the utility model.

Detailed ways

FIG. 1 is a schematic structural diagram of the present utility model. As shown in the figure, the thoracic cavity puncture drainage and suction device in this embodiment includes a puncture needle 1, an elastic drainage tube 2 and a hollow cavity and is communicated with the elastic drainage tube 2 to form a guide The catheter base 3 of the flow channel, the catheter base 3 is provided with an elastic sealing blind end, the puncture needle 1 penetrates the elastic sealing blind end and the diversion channel and can reciprocate along the diversion channel, and the puncture needle 1 fits The inner wall of the elastic drainage tube 2 is arranged, and the catheter holder 3 is provided with a drainage interface 6; when in use, push the puncture part of the puncture needle 1 out of the tube end of the elastic drainage tube 2 and then puncture the lungs. The elastic drainage tube 2 retreats into the hollow cavity 31 of the catheter holder 3, and the elastic drainage tube 2 enters the chest cavity with the puncture needle 1 and stays in the lung cavity as a suction channel for the air and liquid in the lung cavity, and then connects the suction device to drain. The liquid port 6 performs air extraction and liquid extraction, and the fluid or gas in the lung cavity enters the hollow cavity 31 of the catheter holder 3 through the elastic drainage tube 2 , and is then discharged through the liquid drain port 6 . Since the puncture needle 1 is retracted to the hollow cavity 31 of the catheter hub 3, it will not affect the performance of air extraction and fluid extraction. The elastic sealing blind end of the catheter adapter 3 makes the catheter adapter 3 and the elastic drainage tube 2 form a one-way communication channel. The needle 1 and the blind end of the elastic seal are in a sealed fit state, that is to say, the puncture needle 1 and the blind end of the elastic seal belong to a gapless seal fit, and the puncture needle 1 can be inserted back and forth through the blind end of the elastic seal without affecting the air tightness. . Since the effusion in the lung cavity accumulates over time, multiple extractions are required, and the drainage elastic catheter cannot be indwelled in the lung cavity by using the extraction device of this embodiment. Due to the flexibility of the drainage elastic catheter, it will not hurt Lung cavity tissue, achieve the effect of one puncture and multiple extractions, reduce the pain of the patient, and reduce the operation steps.

In this embodiment, the surface of the puncture needle 1 is provided with a groove 4; since the puncture needle 1 is arranged against the inner wall of the elastic drainage tube 2, the setting of the groove 4 is convenient for re-puncturing when the puncture needle 1 is pushed forward. Exhaust to ensure smooth puncture. The puncture needle 1 is a common medical needle with an inner hole channel, and the groove 4 communicates with the inner hole channel of the puncture needle 1 .

In this embodiment, the groove 4 is arranged on the puncture needle 1 corresponding to the elastic drainage tube 2 ; the setting of the groove 4 is mainly used for exhausting air during the puncture process, and the puncture needle 1 fits the inner wall of the elastic drainage tube 2 Therefore, only the groove 4 is provided on the surface of the puncture needle 1 corresponding to the elastic drainage tube 2, and the groove 4 is connected with the inner hole channel of the puncture needle 1, so that the exhaust can be well played, and the puncture needle will not be affected. 1 advance.

In the embodiment, the hollow cavity 31 of the catheter holder 3 is set larger than the diameter of the elastic drainage tube 2; that is to say, in the elastic drainage tube 2, the puncture needle 1 and the elastic drainage tube 2 have almost no pores, and because the catheter The seat 3 has a certain hollow cavity 31, the hollow cavity 31 not only has a space for liquid collection, but also when the puncture needle 1 exits the elastic drainage tube 2, the channel structure formed by the elastic drainage tube 2 and the catheter seat 3 is more conducive to The suction is carried out to ensure smooth suction.

In this embodiment, the cross section of the catheter holder 3 is tapered, which is convenient for suction to form a negative pressure, and improves the suction efficiency and the smoothness of suction.

In this embodiment, the outer diameter of the open end of the elastic drainage tube 2 is smaller than the outer diameter of the body of the elastic drainage tube 2; the outer diameter of the tube body of the elastic drainage tube 2 gradually decreases toward the open end; that is, the elastic drainage tube 2 The outer diameter section of the open end of the open end is a smooth transition arc structure, and the inner diameter of the elastic drainage tube 2 remains unchanged. The arrangement of this structure is conducive to the elastic drainage tube 2 entering the lung cavity more smoothly with the puncture needle 1, reducing the gap between resistance formed while reducing patient discomfort.

In this embodiment, the inner diameter of the elastic drainage tube 2 is 1-1.5 mm; the inner diameter is small, the resulting trauma is small, the somatosensory pain is small, and the puncture can be performed without using anesthesia, and at the same time, it does not affect the exhaust and drainage. fluid patency.

In this embodiment, the puncture needle 1 is provided with a needle holding handle 5, which facilitates the advancement during puncture and the withdrawal after puncture.

In this embodiment, the elastic drainage tube 2 is a silicone tube or a PVC tube.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a thoracentesis drainage suction device which characterized in that: the puncture needle is attached to the inner wall of the elastic drainage tube and provided with a drainage connector.

2. The thoracentesis drainage aspiration device of claim 1, wherein: the surface of the puncture needle is provided with a groove.

3. The thoracentesis drainage aspiration device of claim 2, wherein: the groove is arranged on the puncture needle corresponding to the elastic drainage tube.

4. The thoracentesis drainage aspiration device of claim 3, wherein: the hollow cavity of the catheter seat is larger than the aperture of the elastic drainage tube.

5. The thoracentesis drainage aspiration device of claim 4, wherein: the catheter holder is conical in section.

6. The thoracentesis drainage aspiration device of claim 1, wherein: the outer diameter of the opening end of the elastic drainage tube is smaller than the outer diameter of the tube body of the elastic drainage tube.

7. The thoracentesis drainage aspiration device of claim 6, wherein: the outer diameter of the tube body of the elastic drainage tube to the opening end is gradually reduced.

8. The thoracentesis drainage aspiration device of claim 7, wherein: the inner diameter of the elastic drainage tube is 1-1.5 mm.

9. The thoracentesis drainage aspiration device of claim 8, wherein: the puncture needle is provided with a needle holding handle.

10. The thoracentesis drainage aspiration device of claim 9, wherein: the elastic drainage tube is a silicone tube or a PVC tube.

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