CN209360774U - The dedicated liver retractor of laparoscope - Google Patents

Abstract

The utility model belongs to the field of medical instrument technology, it is related to a kind of dedicated liver retractor of laparoscope, including holding rod and hook retractor, hook retractor is the coupler body that shape is in U-shape, coupler body when operation using U-shaped is inserted into liver lower end picking-up liver and performs the operation, and the coupler body of the hook retractor shape that is in U-shape will not scratch or puncture liver, avoid and cause to damage to liver, reduce the dangerous risk of operation；The utility model production simultaneously is simple, easy to use, reduces manpower and operation cost, and simplifying operation method reduces operating difficulty, has good social effect.

Description

Liver retractor for laparoscopy

technical field

The utility model relates to a surgical instrument, which belongs to the technical field of medical instruments, in particular to

And a laparoscopic liver retractor.

Background technique

During laparoscopic liver surgery, the patient needs to lie flat on the operating table. At this time, the patient's liver will be attached to the bottom of the abdominal cavity due to gravity, thus covering the affected area that needs surgery. Therefore, tools are needed to lift and pull the liver. For surgery, at present, hospitals usually use fan-shaped forceps to move and pull the liver, but the blades of the fan-shaped forceps are very thin, and the texture of the liver is relatively tender. When using the fan-shaped forceps to move the liver, it is easy to cause damage to the liver, which increases the operation time. Unsafe risk; the utility model (CN201020049682) proposes a laparoscopic non-injury liver retractor. When in use, the hook body of the retractor hook is covered with a medical hose and hooked into the lower end of the liver for lifting and traction. However, the retractor uses the retractor hook to hook the liver and lift it up during the operation. It can be seen from (figure 2) that after the retractor hook hooks the liver, the tip of the retractor hook is also hooked under the liver at the same time. The texture is very soft and tender, even if the hook body is covered with a medical hose, it is very easy to cause damage to the liver; using this retractor for surgery is risky.

Utility model content

In order to solve the above problems, the utility model proposes a laparoscopic liver retractor.

The technical scheme of the utility model is: a laparoscopic liver retractor, including a grip rod, a retracting hook, and a top stab body, the retracting hook is a U-shaped hook body, and the retracting hook The hook body includes a section of straight section A connected with the grip bar, a section of straight section B connected with the top thorn body, an arc section connected between the straight section A and the straight section B, and the straight section A Arranged in parallel with the straight rod section B, the upper end of the holding rod is provided with a ring body handle; the angle between the holding rod and the straight rod section A connection is α, and the straight rod section B is connected to the apical body The included angle is β.

Preferably, said 120°≤α≤130°, 140°≤β≤150°, the radius of the arc segment of the retracting hook is R, 3cm≤R≤5cm.

Preferably, the holding rod, the retracting hook, and the thrusting body are all cylindrical medical titanium alloys with the same cross section.

The beneficial technical effect of the utility model is:

The retractor hook of the utility model is a U-shaped hook body. During the operation, the U-shaped hook body of the retractor hook is inserted into the lower end of the liver to support the liver for surgery. The U-shaped hook body of the retractor hook will not scratch Injury or puncturing the liver avoids damage to the liver and reduces the risk of unsafe surgery; at the same time, the utility model is simple to manufacture and easy to use, reduces manpower and operation costs, simplifies the operation method and reduces the difficulty of the operation, and has good social benefits.

Description of drawings

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

Fig. 2 is the main view structure schematic diagram during operation of the utility model;

Fig. 3 is the looking up structure schematic diagram during operation of the utility model;

In the figure, 1. Grip rod, 2. Retraction hook, 201. Straight rod segment A, 202 Straight rod segment B, 203 Arc segment, 3. Apex body, 4. Ring body, 5. Liver, 6 . The wall of the abdominal cavity.

Detailed ways

Embodiment 1, see the accompanying drawings (1-3) in the description, a liver retractor dedicated for laparoscopy, including a gripping rod, a retractor hook, and a spur body, and the retractor hook is a U-shaped hook The hook body of this structure has a large contact surface with the liver. It is relatively stable and reliable when pulling and pulling the liver, and will not cause damage to the liver. The hook body of this retraction hook includes a straight rod connected with the holding rod Section A, a section of straight section B connected with the top thorn body, connected to the arc section between the straight section A and the straight section B, the straight section A and the straight section B are arranged in parallel, and the upper end of the grip There is a torus handle at the top, and the torus handle is used to bind ropes or bandages; the angle between the holding rod and the connection of the straight rod section A is α, and the straight rod section B is connected to the apex body The included angle at is β

The above-mentioned 120°≤α≤130°, 140°≤β≤150°, the radius of the arc section of the retractor hook is R, 3cm≤R≤5cm, and the above-mentioned included angle is combined with the structure of the abdominal cavity of the human body and the structure of the liver, which can make the pull The opening hook is smoothly inserted into the human body, and the retracting hook can be smoothly moved and pulled in the human body. The radius range of the retracting hook can be adapted to patients with different heights and ages for surgery.

The holding rod, the retracting hook and the thrusting body are all cylindrical medical titanium alloys with the same cross section.

The operation method of the present utility model is:

a. Hold the holding rod of the retractor with your hand, insert the apical body at the lower end of the traction hook into the minimally invasive hole in the abdomen, and guide the U-shaped part of the traction hook into the abdominal cavity along the minimally invasive hole;

b. After the traction hook enters the abdominal cavity, find the position of the liver through the laparoscope, and then turn the holding rod to insert the U-shaped part of the traction hook into the bottom of the liver, and the top spine of the traction hook faces outward to avoid piercing the liver;

c. After the U-shaped part of the traction hook is fully inserted into the bottom of the liver, operate the holding rod to lift the liver upwards and attach the liver to the abdominal wall. At this time, the bottom of the liver is exposed, which is convenient for subsequent abdominal operations;

d. Finally, the torus is tied with a rope or a medical bandage to fix the retractor, making it easy to operate on the bottom of the liver.

Claims (3)

1. A liver retractor for laparoscopy, comprising a grip bar, retracting hook, and apex body, characterized in that: the retracting hook is a U-shaped hook body, and the hook of the retracting hook The body includes a section of straight bar section A connected with the grip bar, a section of straight bar section B connected with the top thorn body, an arc section connected between the straight bar section A and the straight bar section B, and the straight bar section A and the straight bar section A. Bar section B is arranged in parallel, and the upper end of the holding bar is provided with a torus handle; the included angle between the holding bar and the straight bar section A joint is α, and the angle between the straight bar section B and the top thorn body joint is α. The included angle is β. 2. A liver retractor dedicated for laparoscopy according to claim 1, characterized in that: said 120°≤α≤130°, 140°≤β≤150°, the radius of the arc segment of the retracting hook It is R, 3cm≤R≤5cm. 3. A liver retractor dedicated for laparoscopy according to claim 1, characterized in that: said grip rod, retractor hook, and apex body are all cylindrical medical titanium alloys with the same cross section.