Pigtail-shaped peritoneal double-sleeve drainage catheter

Abstract

The invention discloses a pigtail-shaped peritoneal double-sleeve drainage catheter. A guiding hole is formed in the front end part or front end surface of an outer pipe, the front part of the outer pipe is cured to form a pigtail-shaped round ring, a plurality of first drainage holes are formed in the pigtail-shaped round ring at intervals, a pipe seat is fixed at the rear end part of the outer pipe, at least one drainage pipe movably arranged in the outer pipe in a penetration manner, the drainage pipe and the outer pipe form a drainage pipe body in a double-casing pipe structure, and an airpressure balancing pipe cavity is formed by a pipe cavity between the outer pipe and the drainage pipe; an inner composite wall pipe is arranged in the outer pipe; a liquid extraction interface, a flushing liquid introducing interface and an air pressure balancing interface are formed in the pipe seat, the liquid extraction interface is communicated with the drainage pipe, the flushing liquid introducing interface is communicated with the inner composite wall pipe, and the air pressure balancing interface is communicated with the air pressure balancing pipe cavity. The double-sleeve drainagecatheter adopts the double-casing pipe structure and is provided with a transfusion device and an air transmission device, so that the drainage catheter cannot be easily blocked, the drainage capacityis high, and the drainage is relatively smooth.

Description

technical field [0001] The invention relates to the technical field of medical drainage catheters, in particular to a pigtail-shaped abdominal cavity double-set drainage catheter. Background technique [0002] At present, the drainage of peritoneal effusion is usually performed through a double-set abdominal drainage catheter and a pigtail-shaped abdominal drainage catheter. And the prior art double-covered peritoneal drainage catheter is a structure in which the outer tube is covered with an inner tube, and is also provided with an infusion device and an air delivery device. The wall drainage hole is not easy to be blocked, the drainage volume is large, and the drainage is smoother. However, because the head is relatively thick, clinically, after laparotomy, a hole of about 1.5 cm is cut through the belly under direct vision and inserted. It can only be inserted when the patient is completely relaxed under general anesthesia during the operation; while the pigtail-shaped a...

AI Technical Summary

Problems solved by technology

And the prior art double-covered peritoneal drainage catheter is a structure in which the outer tube is covered with an inner tube, and is also provided with an infusion device and an air delivery device. The wall drainage hole is not easy to be blocked, the drainage volume is large, and the drainage is smoother. However, because the head is relatively thick, clinically, after laparotomy, a hole of about 1.5 cm is cut through the belly under direct vision and inserted. It can only be inserted when the patient is completely relaxed under general anesthesia during the operation; while the pigtail-shaped abdominal drainage catheter does not require the patient to open the abdomen, nor does it require the patient to undergo general anesthesia to puncture the drainage catheter through local anesthesia. Location

However, the pigtail-shaped peritoneal drainage catheter of the prior art has only one outer port to provide drainage. If some liquids, necrotic tissue or pus are more viscous, it is easy to cause the drainage hole of the tube wall to be blocked, and the drainage is not smooth, resulting in poor therapeutic effect, such as In this case, normal saline is usually injected through the outer port for flushing to make the drainage hole unobstructed; if there is more exudate in the abdominal cavity, the pigtail-shaped abdominal drainage catheter of the prior art cannot achieve timely and smoother drainage. It is necessary to combine the advantages of the double set of abdominal drainage catheters that are not easy to be blocked and the drainage is more smooth. Design the pigtail-shaped abdominal drainage catheter, so that the pigtail-shaped abdominal drainage catheter is also not easy to block, the drainage volume is large, and the drainage is smoother

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