CN204318867U - Disposable celiac mirror bile duct puncture attracts pin - Google Patents

Abstract

A disposable laparoscopic biliary tract puncture suction needle, comprising a puncture needle, a puncture head is arranged at the front end of the puncture needle, a plastic needle tail is connected to the rear end, a channel is arranged in the puncture needle, and a channel is also arranged in the plastic needle tail, and the puncture A protective tube is sheathed on the outside of the needle, the length of the protective tube is longer than that of the puncture needle, an elastic balloon is connected to the rear end of the plastic needle tail, and the inner cavity of the elastic balloon communicates with the channel in the plastic needle tail. During laparoscopic biliary surgery, the protective tube together with the puncture needle and elastic balloon are placed into the abdominal cavity through the Trocar hole, the protective tube is removed in the abdominal cavity, the elastic balloon is squeezed in advance, and the puncture needle is used to puncture the bile duct; release after puncture Elastic balloon, the elastic balloon sucks the bile, reinserts the puncture needle into the protective tube, and exits the abdominal cavity. The utility model solves the technical problem that the common injection needle easily damages the surrounding tissue and is difficult to move out of the abdominal cavity, and is convenient to use without additional incision and puncture of the abdominal wall.

Description

Disposable laparoscopic biliary puncture suction needle

Technical field:

The utility model relates to a daily necessities for human beings. In particular, it relates to a medical instrument, in particular to a choledochoscope holder, in particular to a disposable laparoscopic biliary tract puncture suction needle.

Background technique:

During laparoscopic biliary tract surgery, bile needs to be aspirated as material for culture and pathological examination. The procedure is to incise the common bile duct, determine the anatomical structure, place the common injection needle into the abdominal cavity, clamp the common injection needle with a laparoscopic instrument and puncture the common bile duct, and then cut the bile duct with an electric knife; if necessary, pass the common bile duct Inject the needle while decompressing the bile duct. Ordinary injection needles are easy to damage the surrounding tissues during the operation of inserting into the abdominal cavity and clamping, and it is difficult to move out of the abdominal cavity.

Invention content:

The purpose of this utility model is to provide a disposable laparoscopic biliary tract puncture suction needle, said disposable laparoscopic biliary tract puncture suction needle to solve the common injection used when puncturing the common bile duct in laparoscopic biliary tract surgery in the prior art The needle is easy to damage the surrounding tissue, and it is difficult to move out of the abdominal cavity.

The disposable laparoscopic biliary tract puncture suction needle of the utility model comprises a puncture needle, the front end of the puncture needle is provided with a puncture head, the rear end of the puncture needle is connected with a plastic needle tail, and the puncture needle is provided with a Channel, the plastic needle tail is also provided with a channel, the channel in the puncture needle extends backward from the puncture head and communicates with the channel in the plastic needle tail, wherein, the outer side of the puncture needle is covered with A protective tube, the length of the protective tube is greater than the length of the puncture needle, an elastic balloon is connected to the rear end of the plastic needle tail, a thin neck is arranged between the plastic needle tail and the elastic balloon, and the elastic ball The lumen of the capsule communicates with the channel in the plastic needle tail through the channel in the thin neck.

Further, the front end of the protection tube is closed, and the outer wall of the front end of the protection tube is spherical or parabolic.

Further, the outer diameter of the protective tube is smaller than or equal to the outer diameter of the plastic needle tail, the outer diameter of the narrow neck is smaller than the outer diameter of the plastic needle tail, and the outer diameter of the elastic balloon is smaller than or equal to the outer diameter of the plastic needle tail.

Further, the shape of the rear end surface of the protective tube matches the shape of the front end surface of the plastic needle tail.

Further, the rear end surface of the protection tube is in a concave conical shape.

The working principle of the utility model is: in the process of laparoscopic biliary tract surgery, the protective tube together with the puncture needle and the elastic balloon are inserted into the abdominal cavity through the Trocar hole established in the abdominal wall, the protective tube is pulled out in the abdominal cavity, and the puncture needle is used to insert the protective tube into the abdominal cavity. The bile duct puncture was judged under laparoscopy; the elastic balloon was squeezed before the puncture, and the elastic balloon was released after the puncture. When the elastic balloon rebounded, the bile was sucked in, the puncture needle was reinserted into the protective tube, and exited the abdominal cavity through the Trocar hole.

Compared with the prior art, the utility model has positive and obvious effects. In the utility model, a protective tube is arranged outside the puncture needle, and an elastic balloon is connected behind the puncture needle. During laparoscopic biliary tract surgery, the protective tube together with the puncture needle and the elastic balloon are inserted through the Trocar hole established in the abdominal wall. Abdominal cavity, pull out the protective tube in the abdominal cavity, use the puncture needle to judge the bile duct puncture under laparoscope; squeeze the elastic balloon before puncture, release the elastic balloon after puncture, inhale bile when the elastic balloon rebounds, and insert the puncture needle Reinsert the protective tube and exit the abdominal cavity through the Trocar hole. The utility model solves the technical problem that the common injection needle easily damages the surrounding tissue and is difficult to move out of the abdominal cavity, and is convenient to use without additional incision and puncture of the abdominal wall.

Description of drawings:

Fig. 1 is a schematic structural view of a disposable laparoscopic biliary tract puncture suction needle of the present invention.

Fig. 2 is a schematic structural view of the puncture needle in the disposable laparoscopic biliary tract puncture suction needle of the present invention.

Detailed ways:

Example 1:

As shown in Figures 1 and 2, the disposable laparoscopic biliary tract puncture suction needle of the present invention includes a puncture needle 1, a puncture head is arranged at the front end of the puncture needle 1, and a plastic needle is connected to the rear end of the puncture needle 1 Tail 2, a channel is provided in the puncture needle 1, and a channel is also provided in the plastic needle tail 2. The channel in the puncture needle 1 extends backward from the puncture head and communicates with the channel in the plastic needle tail 2, wherein the puncture needle 1 A protective tube 3 is provided on the outside, the length of the protective tube 3 is greater than the length of the puncture needle 1, an elastic balloon 4 is connected to the rear end of the plastic needle tail 2, and an elastic balloon 4 is arranged between the plastic needle tail 2 and the elastic balloon 4. Narrow neck 5, the inner chamber of the elastic balloon 4 communicates with the channel in the plastic needle tail 2 through the channel in the narrow neck 5.

Further, the front end of the protection tube 3 is closed, and the outer wall of the front end of the protection tube 3 is spherical or parabolic.

Further, the outer diameter of the protective tube 3 is less than or equal to the outer diameter of the plastic needle tail 2, the outer diameter of the thin neck 5 is smaller than the outer diameter of the plastic needle tail 2, and the outer diameter of the elastic balloon 4 is less than or equal to that of the plastic needle tail 2. outside diameter.

Further, the shape of the rear end surface of the protection tube 3 matches the shape of the front end surface of the plastic needle tail 2 .

Further, the rear end surface of the protection tube 3 is in a concave conical shape.

The working principle of this embodiment is: during laparoscopic biliary tract surgery, the protective tube 3 together with the puncture needle 1 and the elastic balloon 4 is inserted into the abdominal cavity through the Trocar hole established in the abdominal wall, and the protective tube 3 is removed in the abdominal cavity , use the puncture needle 1 to judge the bile duct puncture under laparoscope; squeeze the elastic balloon 4 before the puncture, release the elastic balloon 4 after the puncture, absorb the bile when the elastic balloon 4 rebounds, and reinsert the puncture needle 1 into the protective tube. Tube 3, exits the abdominal cavity through the Trocar hole.

Claims (5)

1. A disposable laparoscopic biliary tract puncture suction needle, comprising a puncture needle, the front end of the puncture needle is provided with a puncture head, the rear end of the puncture needle is connected with a plastic needle tail, and a passage is arranged in the puncture needle, The plastic needle tail is also provided with a channel, and the channel in the puncture needle extends backward from the puncture head and communicates with the channel in the plastic needle tail. It is characterized in that: the outer side of the puncture needle is covered with A protective tube, the length of the protective tube is greater than the length of the puncture needle, an elastic balloon is connected to the rear end of the plastic needle tail, a thin neck is arranged between the plastic needle tail and the elastic balloon, and the elastic ball The lumen of the capsule communicates with the channel in the plastic needle tail through the channel in the thin neck. 2. The disposable laparoscopic biliary puncture suction needle according to claim 1, characterized in that: the front end of the protective tube is closed, and the outer wall of the front end of the protective tube is spherical or parabolic. 3. The disposable laparoscopic biliary tract puncture suction needle as claimed in claim 1, characterized in that: the outer diameter of the protective tube is less than or equal to the outer diameter of the plastic needle tail, the outer diameter of the thin neck is smaller than the outer diameter of the plastic needle tail, The outer diameter of the elastic balloon is smaller than or equal to the outer diameter of the plastic needle tail. 4. The disposable laparoscopic biliary puncture suction needle according to claim 1, characterized in that: the shape of the rear end surface of the protective tube matches the shape of the front end surface of the tail of the plastic needle. 5. The disposable laparoscopic biliary puncture suction needle according to claim 1, characterized in that: the rear end surface of the protective tube is in a concave conical shape.