Liver suspension device for laparoscopic surgery

Abstract

A liver suspension device for laparoscopic surgery comprises a Purlin line, one end of the Purlin line is connected with a puncture needle, the other end of the Purlin line is connected with a plurality of line rings through a plurality of elastic ropes, the puncture needle is used for reversely puncturing the Purlin line out of the abdominal wall and fixing and suspending the Purlin line in vitro, and the line rings are arranged in the abdominal cavity and used for fixing perihepatic tissue. The elastic rope is used for hanging the line ring fixed with the liver on the abdominal wall through the elastic effect of the elastic rope. According to the utility model, the operation steps are simplified, the operation time is shortened, and the liver cannot be damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of for laparoscopic surgery liver suspension device. BACKGROUND

[0002] As a representative technology of minimally invasive surgery, laparoscopic surgery has completely changed the mode of traditional surgery with its unique advantages. With the continuous progress of technology, continuous improvement of instruments and accumulation of surgical experience, laparoscopic surgery has been vigorously developed in the fields of gastrointestinal surgery, hepatobiliary surgery, pancreatic surgery, weight loss metabolic surgery and colorectal surgery, and has become the most mainstream technology in the field of abdominal surgery.

[0003] The exposure of the visual field in laparoscopic surgery is very important for successful laparoscopic surgery, especially in stomach, spleen, pancreas and other surgeries. Due to the obstruction of the left lobe of the liver, the stomach, spleen, pancreas and other organs are often poorly exposed, affecting the progress of the surgery and increasing the difficulty of the surgery. At this time, the liver needs to be pulled, lifted and suspended. However, the liver is a fragile and easily damaged organ. If the instrument, method and force are not appropriate, it will cause damage and rupture of the liver, and in severe cases, it will endanger the life safety of the patient, thereby increasing the operation time and surgical complications.

[0004] One of the existing methods is to place various types of liver pullers or liver pushers designed by the invention through a small incision in the abdominal wall into the abdominal cavity, and to expose the surgical field by controlling the liver to move from the outside of the body. The most typical instrument is the Nathanson liver puller and the snake-shaped liver pusher. This method has the following disadvantages: first, a small incision in the abdominal wall is needed to place the instrument into the abdominal cavity, which increases the surgical trauma; second, after the instrument is placed in the abdominal cavity, the position and angle of the instrument need to be adjusted by the assistant outside the body at any time during the operation to expose the surgical field, which is time-consuming and labor-intensive; third, this type of instrument is often large in size, which easily occupies the surgical space and brings inconvenience to the surgery; fourth, this type of instrument is rarely equipped in hospitals at all levels in China, and its practicality is not strong, making it difficult to be widely used and applied in hospitals at all levels and benefit patients.

[0005] Another method is to use Prolene thread or medical purse string thread to suture or clamp the perihilar tissue such as the round ligament of liver, the hepatogastric ligament, the diaphragmatic crus and the diaphragm in the abdominal cavity to form internal abdominal cavity traction, so that the liver is lifted and suspended to expose the surgical field. However, this method has the following disadvantages: first, the W-shaped suture for suspending the liver is time-consuming and laborious, the process is complex, and the thread head and tail need to be pulled out of the abdominal cavity outside the abdominal wall for tightening and fixing, which significantly increases the surgical steps and time; second, the medical purse string thread is punctured into the body through the abdominal wall, then the thread tail is pulled out of the abdominal wall through counter-puncture, and then the thread is clamped and fixed to the perihilar tissue in the abdominal cavity, and the external tightening suture forms a V-shaped suspension of the liver. This method may be unstable, and when the left lobe of the liver is thick and the patient is obese, the V-shaped suspension method often has poor suspension effect and cannot expose a good surgical field, and the suspension thread needs to be placed in the appropriate position through two punctures of the abdominal wall, thereby increasing the surgical steps and time.

[0006] Based on the above-mentioned existing problems, the existing laparoscopic liver suspension device and method cannot meet the requirements of true minimally invasive, easy operation, time and labor saving, reliable suspension, and there are various defects. There is an urgent need for a more minimally invasive, safe, time-saving, low-cost and simple liver suspension device in laparoscopic abdominal surgery. Practical new type content

[0007] The utility model discloses a kind of liver suspension devices for laparoscopic surgery, which can not only simplify surgical steps and shorten operation time, but also will not cause damage to liver, with simple structure, low cost, convenient to use in surgical process, and reliable suspension effect.

[0008] To solve the above problems, the technical scheme of the utility model is as follows:

[0009] A liver suspension device for laparoscopic surgery includes prolene thread, one end of which is connected to a puncture needle, and the other end is connected to a plurality of wire rings through a plurality of elastic ropes. The puncture needle is used to fix and suspend the prolene thread outside the body after counter-puncturing the abdominal wall. The wire rings are used to fix the perihilar tissue in the abdominal cavity. The elastic ropes are used to suspend the wire rings fixed with the liver on the abdominal wall through their elastic effect.

[0010] The elastic ropes have four, and the wire rings connected to the four elastic ropes are fixed to the round ligament of liver, the hepatogastric ligament, the right diaphragmatic crus and the left lobe of liver triangular ligament, respectively.

[0011] A layer of elastic rubber film is wrapped outside the elastic ropes.

[0012] The prolene thread is made of polypropylene macromolecular material.

[0013] The utility model discloses the beneficial effect is:

[0014] 1, the device production is simple, and the cost rate is low, and can be popularized and applied in all levels of hospitals all over the world.

[0015] 2, the device volume is small, and convenient to use, and easy to enter and exit the abdominal cavity, and only once the reverse puncture can be fixed on the abdominal wall with the device, and then through the Homelock clamp and the four wire rings at the end of the elastic rope in the abdominal cavity are fixed to the liver tissue, greatly simplify the cumbersome steps of multiple sutures and multiple punctures in the prior art.

[0016] 3, the four ends of the four elastic ropes in the device have four wire rings, and four-point fixing can be carried out, and the liver can be fully lifted and suspended, and even the patient with the enlarged left lobe of liver can also be fully exposed.

[0017] 4, when the device is removed, the prolene line is cut outside the body, and the wire ring is cut inside the body, so that the device can be easily taken out from the abdominal cavity, and the operation time is not significantly increased.

[0018] 5, after the device is fixed successfully, no assistant is needed to adjust, and the additional energy of the assistant is not increased, and at the same time, the hands of the assistant are freed to cooperate with the operator to complete the operation more calmly, and the defect that the traditional abdominal wall external liver suspension device needs frequent adjustment is abandoned. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described below in combination with the drawings:

[0020] Figure 1 It is the structure schematic drawing of the utility model.

[0021] In the drawing: puncture needle 1, prolene line 2, elastic rope 3, rubber membrane 4, wire ring 5. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] A kind of for laparoscopic surgery liver suspension device, including 8-10cm length prolene thread 2, one end of prolene thread 2 is connected with puncture needle 1, puncture needle 1 is hard high-strength needle, not easy to bend deformation, length is 5-6cm, the other end of prolene thread 2 is connected with multiple wire rings 5 by multiple elastic ropes 3, wire ring is made of prolene thread, the puncture needle 1 is used to be punctured out of abdominal wall prolene thread 2 in vitro fixed suspension, wire ring 5 is used to fix the liver tissue in abdominal cavity, elastic rope 3 is used to suspend wire ring 5 fixed with liver on abdominal wall by the elastic action of itself, the elastic rope 3 has four, and wire ring 5 connected with four elastic ropes 3 is fixed on hepatic round ligament, hepatogastric ligament, right diaphragm muscle foot and hepatic left lobe triangular ligament respectively.In the outer wrapping of elastic rope 3, a layer of elastic rubber film 4 is wrapped.The liver is completely blocked by elastic rope 3 and elastic rubber film 4 after fixing wire ring 5, and forms comprehensive lifting suspension, and elastic rubber film 4 can disperse the pressure of elastic rope 3 on liver, reduce the linear pressure damage of elastic rope 3 on liver.The prolene thread 2 selects polypropylene high molecular material suture thread.

[0024] The use method of the utility model is: in laparoscopic surgery, after establishing pneumoperitoneum and placing laparoscope instrument, when the operation needs to suspend the left lobe of liver, the operator assists the assistant to first disconnect the hepatogastric ligament, then places the device into the abdominal cavity through the main operation space of the operator, clamps the device puncture needle 1 under laparoscope, punctures out of abdominal wall from under the xiphoid process of the patient, leads prolene thread 2 out of abdominal wall, pulls prolene thread 2 to make the fusion point of four elastic ropes 3 close to peritoneum, clamps prolene thread 2 with a blood vessel clamp at the skin of abdominal wall in vitro to fix it, then the assistant lifts the liver, the operator uses a medium-sized Homelock clamp to fix the four wire rings 5 at the ends of elastic rope 3 on four different points of hepatic round ligament, hepatogastric ligament, right diaphragm muscle foot and hepatic left lobe triangular ligament, in addition, the clamp position of the four wire rings 5 can be adjusted according to the size and hypertrophy degree of the left lobe of liver during the operation, four elastic ropes 3 will lift and suspend the liver under the action of elasticity, ensure that the operation visual field under the left lobe of liver is best exposed, if necessary, a gauze pad can be placed between elastic rope 3 and the contact surface of liver to prevent the surface of liver from being damaged by pressure.When the operation is completed, the operator cuts wire ring 5 with an ultrasonic knife or scissors in the abdominal cavity, and cuts prolene thread 2 in vitro, so that the device can be easily taken out.

[0025] The content described in the embodiments of the present application is only a list of implementation forms of the utility model concept, and the protection scope of the utility model should not be regarded as limited to the specific forms described in the embodiments, and the protection scope of the utility model also extends to equivalent technical means that can be thought of by those skilled in the art according to the utility model concept.

Claims

1. A device for laparoscopic liver suspension, characterized in that: It comprises a prolene thread (2), one end of which is connected with a puncture needle (1), and the other end is connected with a plurality of thread loops (5) through a plurality of elastic ropes (3), the puncture needle (1) is used for reversely puncturing the prolene thread (2) out of the abdominal wall to be fixed and suspended outside the body, the thread loop (5) is used for fixing the perihilar tissue in the abdominal cavity, and the elastic rope (3) is used for suspending the thread loop (5) fixed with the liver on the abdominal wall.

2. The device according to claim 1, wherein: The elastic rope (3) has four, and the thread loop (5) connected with the four elastic ropes (3) is fixed on the hepatic round ligament, the hepatogastric ligament, the right diaphragm muscle foot and the left lobe triangular ligament of the liver respectively.

3. The device according to claim 1, wherein: An elastic rubber film (4) is wrapped outside the elastic rope (3).

4. The device according to claim 1, wherein: The prolene thread (2) is selected from polypropylene high molecular material suture thread.

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