Abdominal wall retractor for observation hole of laparoscope

Abstract

The abdominal wall retractor for the observation hole of the laparoscope comprises a first retraction arm and a second retraction arm, the first retraction arm and the second retraction arm are hinged through a hinged shaft, and the first retraction arm comprises a first retraction arm front section, a first retraction arm middle section and a first retraction arm rear section. The end part of the rear section of the first retraction arm is fixedly connected with a first operation ring; the second retraction arm comprises a second retraction arm front section, a second retraction arm middle section and a second retraction arm rear section, the end part of the second retraction arm rear section is fixedly connected with a second operation ring, and the end part of the first retraction arm front section is movably connected with a first retraction rod and a second retraction rod; and the end part of the front section of the second retracting arm is movably connected with a third retracting rod and a fourth retracting rod. The utility model has the beneficial effects that the abdominal wall of the observation hole and the subcutaneous fat layer can be expanded, and the anterior sheath layer and the peritoneal layer can be better exposed, so that the peritoneal layer and the anterior sheath layer can be better sutured under direct vision, related complications of a puncture hole are avoided, the use is safe and reliable, and the operation time of medical personnel is saved.

Description

Technical Field

[0001] This utility model relates to the field of surgical instruments for abdominal cavity surgery, specifically a laparoscopic observation port abdominal wall retractor. Background Technology

[0002] With the continuous advancement of science and technology and medicine, laparoscopic technology has developed rapidly, and laparoscopic surgery has been widely promoted and applied. Laparoscopic surgery can resolve patients' pain more minimally invasively, reducing surgical trauma for countless patients. Laparoscopy provides surgeons with a better surgical field of view, gaining widespread popularity among surgeons. However, the widespread application of laparoscopic surgery has also led to a persistently high incidence of puncture site bleeding and incisional hernias after laparoscopic surgery. Puncture site bleeding can cause hemorrhagic anemia and even hemorrhagic shock, endangering the patient's life. Puncture site incisional hernias are best prevented, as they cannot heal on their own once they occur. Incomplete closure of the puncture site can lead to postoperative complications, and secondary surgery increases the burden on the patient. When manually suturing the puncture site, it is difficult to expose the layers of the incision, easily leading to tissue misalignment or incomplete suturing, thus causing puncture site-related complications. In particular, the trocar port for observation cannot be operated under laparoscopic monitoring, making exposure difficult and suturing inaccurate. This is especially important for patients with thick subcutaneous fat layers or those with high-risk factors for incisional hernias. Tight suturing of the peritoneal layer of the observation port is crucial, and it is particularly difficult when the anesthesiologist fails to administer adequate muscle relaxants.

[0003] Existing technology employs an abdominal wall retractor with an adjustable side hook angle. This retractor allows for angle adjustment based on individual patient and surgical incision, facilitating better exposure of the surgical field and enabling different angles of abdominal wall retraction to meet the diverse needs of different patients and incisions. It also plays a role in procedures involving difficult-to-suture open surgical incisions. However, this instrument still cannot assist in suturing the peritoneal layer through the observation port. In most cases, surgeons need to use curved forceps to clamp the peritoneal layer before suturing, but clamping the peritoneal layer is more difficult in obese patients, especially when muscle relaxants are insufficient.

[0004] Therefore, it is necessary to design a puller that can solve the technical problems existing in the above-mentioned prior art. Utility Model Content

[0005] The purpose of this invention is to provide a laparoscopic observation port abdominal wall retractor with a more reasonable structural design, convenient operation during surgery, low processing and manufacturing cost, which can separate the abdominal wall of the observation port from the subcutaneous fat layer, better expose the anterior sheath and peritoneum, thereby better suturing the peritoneum and anterior sheath under direct vision, avoiding puncture port-related complications, and is safe, reliable, and saves medical staff's surgical time.

[0006] This utility model discloses a laparoscopic observation port abdominal wall retractor, comprising a first retractor arm and a second retractor arm, which are hinged together by a hinge shaft. The first retractor arm includes a front section 3, a middle section 4, and a rear section 5. A first operating finger ring 6 is fixedly connected to the end of the rear section 5. The rear section 5 is horizontally positioned, and the middle section 4 is fixedly connected to the end of the rear section 5. The front section 3 is horizontally positioned, and the angle between the middle section 4 and the horizontal line is 40°-50°. The second retractor arm includes a second retractor... The first retractor arm consists of a front section 13, a middle section 14, and a rear section 15. A second operating ring 18 is fixedly connected to the end of the rear section 15. The rear section 15 is horizontally positioned. The middle section 14 is fixedly connected to the end of the rear section 15. The front section 13 is horizontally positioned. The angle between the middle section 14 and the horizontal line is 40°-50°. A first pull rod 7 and a second pull rod 8 are movably connected to the end of the front section 3. A third pull rod 9 and a fourth pull rod 10 are movably connected to the end of the front section 13.

[0007] The first and second retractor arms, after laparoscopic surgery and during the suturing and observation hole puncture process, can be opened and supported against the patient's inner abdominal wall by manipulating the first operating ring 6 and the second operating ring 18, thus opening the surgical field and facilitating laparoscopic surgical operations. The first retractor arm is configured as a three-segment structure consisting of an anterior segment 3, a middle segment 4, and a posterior segment 5. The rear section 5 of the first retractor arm is horizontally positioned, and the angle between the middle section 4 of the first retractor arm and the horizontal line is 40°-50°. The second retractor arm consists of a front section 13, a middle section 14, and a rear section 15, forming a three-section structure. The front section 13 and the rear section 15 of the second retractor arm are horizontally positioned, and the angle between the middle section 14 and the horizontal line is 40°-50°. The first and second retractors arms are designed as a three-section stepped shape with a certain height. During the surgery, the anterior segment 3 of the first retractor arm and the anterior segment 13 of the second retractor arm, the middle segment 4 of the first retractor arm and the middle segment 14 of the second retractor arm, the posterior segment 5 of the first retractor arm and the posterior segment 15 of the second retractor arm can work together to open the tissues on both sides of the incision. The first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 can open the skin and subcutaneous fat tissue on both sides of the incision. The traction rods located above the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 can open the fat tissue above the anterior sheath. This can open the abdominal wall of the patient's observation port from the subcutaneous fat layer in a layered manner, better exposing the patient's anterior sheath and peritoneum, thus allowing for better suturing of the peritoneum and anterior sheath under direct vision. It avoids complications related to the puncture port, and is convenient, safe and reliable to operate on. It is especially suitable for patients with thick subcutaneous fat layers or those with high-risk factors for incisional hernia. It can expose the patient's surgical site in a layered manner, better assisting medical staff in tightly suturing the peritoneum of the observation port, and promoting faster wound healing for the patient.

[0008] The end of the first retractor arm front section 3 is hinged to a first fixed seat 2 via a first hinge shaft 1, and a first pull rod 7 and a second pull rod 8 are fixedly installed on the inner side wall of the fixed seat 2; the end of the second retractor arm front section 13 is hinged to a second fixed seat 11 via a second hinge shaft 12, and a third pull rod 9 and a fourth pull rod 10 are fixedly installed on the inner side wall of the fixed seat 11.

[0009] The end of the first retractor arm 3 is hinged to a first fixed seat 2 via a first hinge shaft 1. A first traction rod 7 and a second traction rod 8 are fixedly installed on the inner wall of the first fixed seat 2. The end of the second retractor arm 13 is hinged to a second fixed seat 11 via a second hinge shaft 12. A third traction rod 9 and a fourth traction rod 10 are fixedly installed on the inner wall of the second fixed seat 11. The first fixed seat 2 and the second fixed seat 11 can respectively drive the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 to perform multi-angle operations according to the patient's abdominal surgical site. The position of the patient's surgical site can be adjusted as needed, further assisting the first and second retractors to better open the abdominal wall and subcutaneous fat layer of the observation port, making the operation more flexible and applicable to a wide range.

[0010] There are two first traction rods 7 and two second traction rods 8. The two first traction rods 7 are respectively placed on one side of the first fixed seat 2 and are symmetrically arranged along the center line of the first fixed seat 2. There are two second traction rods 8 and they are symmetrically arranged along the center line of the first fixed seat 2.

[0011] The number of the third traction rod 9 and the fourth traction rod 10 is two. The two third traction rods 9 are respectively arranged on one side of the second fixed seat 11 and symmetrically arranged along the center line of the second fixed seat 11; the two fourth traction rods 10 are respectively arranged on one side of the second fixed seat 11 and symmetrically arranged along the center line of the second fixed seat 11.

[0012] Two first traction rods 7 and two second traction rods 8 are symmetrically arranged along the midline of the first fixation seat 2; two third traction rods 9 and two fourth traction rods 10 are symmetrically arranged along the midline of the second fixation seat 11. During the operation, the four hooks on the left and right sides below the two fixation seats are first placed under the incision, and then moved downwards until the front ends of the four hooks reach the adipose tissue above the anterior sheath. At this time, the four hooks on the left and right sides above the fixation seat are fixed above the skin on both sides. By operating the first operating ring 6 and the second operating ring 18, the first retraction arm and the second retraction arm are opened and supported on the patient's abdominal wall. During the operation, the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 can open the skin and subcutaneous fat tissue on both sides of the incision. The traction rods above the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 can open the fat tissue above the anterior sheath and fix the abdominal wall skin layer. After the positions of the first and second retraction arms are finally determined, the positions of the first and second retraction arms can be fixed by the interlocking of the fixing teeth 16 on the surface of the fixing rod 17 and the locking teeth 21 in the through hole 20. Then, by holding the handles of the first operating ring 6 and the second operating ring 18, the abdominal wall on both sides of the laparoscopic observation hole is lifted vertically upward to fully expose the anterior sheath and peritoneum below the incision, and the incision is effectively sutured layer by layer.

[0013] The ends of the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 are provided with arc-shaped extension ends.

[0014] The first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 are equipped with arc-shaped extension ends at their ends. These extension ends can assist the anterior segments 3 and 13 of the first retractor arm in opening and fixing the abdominal wall skin layer at the end of the surgical incision during surgery. This allows for full exposure of the surgical field and assists medical staff in performing surgical operations more effectively.

[0015] The inner sidewall of the rear section 15 of the second retractor arm is fixedly installed with a fixed bending rod 17 by a support rod 19. The surface of the fixed bending rod 17 is evenly provided with a plurality of fixed teeth 16. The sidewall of the rear section 5 of the first retractor arm is provided with a through hole 20. A locking tooth 21 is provided in the through hole 20. The fixed teeth 16 and the locking teeth 21 mesh with each other.

[0016] The fixed bending rod 17 can be adjusted according to the size of the patient's surgical incision. During laparoscopic surgery, it can be opened and supported on the inner side of the patient's abdominal wall through the first and second retractor arms. After the surgical field is fully exposed, the fixed teeth 16 on the surface of the fixed bending rod 17 can engage with the locking teeth 21 in the through hole 20 to fix the position of the first and second retractor arms. This avoids medical staff having to hold the first and second retractor arms by hand to fix them, saving time and effort and reducing the surgical time for medical staff.

[0017] The beneficial effects of this utility model are:

[0018] 1) The first and second retractor arms are designed to be used during laparoscopic surgery, specifically for suturing the observation hole and puncturing the puncture site. By manipulating the first operating ring 6 and the second operating ring 18, the first and second retractor arms can be opened and supported against the patient's inner abdominal wall, expanding the surgical field and facilitating laparoscopic surgical procedures. The first retractor arm consists of a three-segment structure: anterior segment 3, middle segment 4, and posterior segment 5. The anterior segment 3 and posterior segment 5 are horizontally positioned, and the middle segment 4 forms an angle of 40°-50° with the horizontal line. The second retractor arm consists of a three-segment structure: anterior segment 13, middle segment 14, and posterior segment 15. The anterior segment 13 and posterior segment 15 are horizontally positioned, and the middle segment 14 forms an angle of 40°-50° with the horizontal line. The first and second retractor arms are designed in a three-section stepped shape with a certain height, at an angle of 40°-50°. During surgery, the anterior segment 3 of the first retractor arm and the anterior segment 13 of the second retractor arm can be opened (which part), the middle segment 4 of the first retractor arm and the middle segment 14 of the second retractor arm can be opened (which part), and the posterior segment 5 of the first retractor arm and the posterior segment 15 of the second retractor arm can be opened (which part). This allows for layered opening of the abdominal wall and subcutaneous fat layer of the patient's observation port, better exposing the patient's anterior sheath and peritoneum, thus enabling better suturing of the peritoneum and anterior sheath under direct vision. This avoids complications related to the puncture site, making the operation convenient, safe, and reliable. It is especially suitable for patients with thick subcutaneous fat layers or those with high-risk factors for incisional hernias, as it allows for layered exposure of the surgical site, better assisting medical staff in tightly suturing the peritoneum of the observation port, and promoting faster wound healing for the patient.

[0019] 2) The end of the front section 3 of the first retractor arm is hinged to the first fixed seat 2 via the first hinge shaft 1. The inner side wall of the fixed seat 2 is fixedly installed with the first traction rod 7 and the second traction rod 8. The end of the front section 13 of the second retractor arm is hinged to the second fixed seat 11 via the second hinge shaft 12. The inner side wall of the fixed seat 11 is fixedly installed with the third traction rod 9 and the fourth traction rod 10. The first fixed seat 2 and the second fixed seat 11 can respectively drive the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 to perform multi-angle operations according to the patient's abdominal surgical site. The position of the patient's surgical site can be adjusted as needed, further assisting the first retractor arm and the second retractor arm to better open the abdominal wall and subcutaneous fat layer of the observation port, making the operation more flexible and applicable to a wide range.

[0020] 3) The first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 are provided with arc-shaped extension ends at the ends of the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10. These extension ends can assist the anterior segments 3 and 13 of the first retractor arm in opening the abdominal wall skin layer at the end of the surgical incision and fix the abdominal wall skin layer. This can fully expose the surgical field and assist medical staff in performing surgical operations better.

[0021] 4) This laparoscopic observation port abdominal wall retractor has a more reasonable structural design, is convenient to operate during surgery, has low manufacturing cost, and can separate the abdominal wall of the observation port from the subcutaneous fat layer, better exposing the anterior sheath and peritoneum. This allows for better suturing of the peritoneum and anterior sheath under direct vision, avoiding complications related to the puncture port. It is safe and reliable to use, saves medical staff's surgical time, and has a wide range of applications. It can play a better role in clinical surgery, especially in patients with thick subcutaneous fat layers or high-risk factors for incisional hernias, and can solve the problem of tightly suturing the peritoneum of the observation port. It can better solve problems for patients and is worthy of widespread promotion and application. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the first retractor arm in this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the second traction arm in this utility model.

[0025] In the figure: 1. First hinge shaft; 2. First fixed seat; 3. First retracting arm front section; 4. First retracting arm middle section; 5. First retracting arm rear section; 6. First operating finger ring; 7. First pulling rod; 8. Second pulling rod; 9. Third pulling rod; 10. Fourth pulling rod; 11. Second fixed seat; 12. Second hinge shaft; 13. Second retracting arm front section; 14. Second retracting arm middle section; 15. Second retracting arm rear section; 16. Fixed tooth; 17. Fixed bent rod; 18. Second operating finger ring; 19. Support rod; 20. Through hole; 21. Locking tooth. Detailed Implementation

[0026] The following will be combined with the appendix Figure 1-3 The present invention will be further described below.

[0027] This utility model includes a first hinge shaft 1, a first fixed base 2, a front section 3 of a first retraction arm 3, a middle section 4 of a first retraction arm 4, a rear section 5 of a first retraction arm 5, a first operating finger ring 6, a first pulling rod 7, a second pulling rod 8, a third pulling rod 9, a fourth pulling rod 10, a second fixed base 11, a second hinge shaft 12, a front section 13 of a second retraction arm 14, a middle section 14 of a second retraction arm 15, and a second operating finger ring 18. Specifically, it includes a first retraction arm and a second retraction arm, which are hinged together by the hinge shaft. The first retraction arm includes a front section 3, a middle section 4, and a rear section 5. The end of the rear section 5 is fixedly connected to the first operating finger ring 6. The rear section 5 is horizontally positioned, and the end of the middle section 4 is fixedly connected to the first retraction arm. The first retractor arm is fixedly connected to the front section 3 of the first retractor arm, which is horizontally positioned. The middle section 4 of the first retractor arm forms an angle of 40°-50° with the horizontal line. The second retractor arm includes a front section 13, a middle section 14, and a rear section 15. A second operating ring 18 is fixedly connected to the end of the rear section 15. The rear section 15 is horizontally positioned. The middle section 14 is fixedly connected to the end of the rear section 15. The front section 13 is fixedly connected to the end of the middle section 14. The front section 13 is horizontally positioned. The middle section 14 forms an angle of 40°-50° with the horizontal line. A first pulling rod 7 and a second pulling rod 8 are movably connected to the end of the front section 3. A third pulling rod 9 and a fourth pulling rod 10 are movably connected to the end of the front section 13.

[0028] The end of the first retractor arm front section 3 is hinged to a first fixed seat 2 via a first hinge shaft 1, and a first pull rod 7 and a second pull rod 8 are fixedly installed on the inner side wall of the first fixed seat 2; the end of the second retractor arm front section 13 is hinged to a second fixed seat 11 via a second hinge shaft 12, and a third pull rod 9 and a fourth pull rod 10 are fixedly installed on the inner side wall of the second fixed seat 11.

[0029] There are two first traction rods 7 and two second traction rods 8. The two first traction rods 7 are respectively placed on one side of the first fixed seat 2 and are symmetrically arranged along the center line of the first fixed seat 2. There are two second traction rods 8 and they are symmetrically arranged along the center line of the first fixed seat 2.

[0030] The number of the third traction rod 9 and the fourth traction rod 10 is two. The two third traction rods 9 are respectively arranged on one side of the second fixed seat 11 and symmetrically arranged along the center line of the second fixed seat 11; the two fourth traction rods 10 are respectively arranged on one side of the second fixed seat 11 and symmetrically arranged along the center line of the second fixed seat 11.

[0031] The ends of the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 are provided with arc-shaped extension ends.

[0032] The first retractor arm front section 3, first retractor arm middle section 4, and first retractor arm rear section 5 are integral structures, easy to manufacture, and made of medical-grade stainless steel; the second retractor arm front section 13, second retractor arm middle section 14, and second retractor arm rear section 15 are integral structures, easy to manufacture, and made of medical-grade stainless steel; the first fixation seat 2, second fixation seat 11, first traction rod 7, second traction rod 8, third traction rod 9, and fourth traction rod 10 are made of medical-grade stainless steel, which is safe, antibacterial, and easy to clean after surgery.

[0033] Procedure: After laparoscopic surgery, during the suturing and observation hole puncture process, the four hooks on the left and right sides below the two fixation seats are first placed under the incision. They are then moved downwards until the tips of the four hooks reach the adipose tissue above the anterior sheath. At this point, the four hooks on the left and right sides of the fixation seats are fixed above the skin on both sides. By manipulating the first operating ring 6 and the second operating ring 18, the first and second retractor arms are opened and supported on both sides of the patient's abdominal wall incision. During the operation, the anterior segment 3 of the first retractor arm and the anterior segment 13 of the second retractor arm, the middle segment 4 of the first retractor arm and the middle segment 14 of the second retractor arm, the posterior segment 5 of the first retractor arm and the second retractor arm are... The distal end of the endoscopic arm 15 can help to open the tissues on both sides of the incision. The first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 can open the skin and subcutaneous fat tissue on both sides of the incision. The traction rod located above the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 can open the fat tissue above the anterior sheath and fix the abdominal wall skin layer. After the positions of the first and second traction arms are finally determined, the fixing teeth 16 set on the surface of the fixing curved rod 17 can engage with the locking teeth 21 set in the through hole 20 to fix the positions of the first and second traction arms. Then, by holding the handles of the first operating ring 6 and the second operating ring 18, the abdominal wall on both sides of the laparoscopic observation hole is lifted vertically upward to fully expose the anterior sheath and peritoneum layer below the incision, and the incision is effectively sutured layer by layer.

[0034] Example 2.

[0035] This utility model includes

[0036] The structure comprises a first retractor arm and a second retractor arm, hinged together by a hinge shaft. The first retractor arm includes a first hinge shaft 1, a first fixed base 2, a front section of a first retractor arm 3, a middle section of a first retractor arm 4, a rear section of a first retractor arm 5, a first operating ring 6, a first pulling rod 7, a second pulling rod 8, a third pulling rod 9, a fourth pulling rod 10, a second fixed base 11, a second hinge shaft 12, a front section of a second retractor arm 13, a middle section of a second retractor arm 14, a rear section of a second retractor arm 15, a fixing tooth 16, a fixing bent rod 17, a second operating ring 18, a support rod 19, a through hole 20, and a locking tooth 21. Specifically, it includes a first retractor arm and a second retractor arm, which are hinged together by a hinge shaft. The first retractor arm includes a front section 3, a middle section 4, and a rear section 5. The end of the rear section 5 is fixedly connected to a first operating ring 6. The rear section 5 is horizontally positioned, and the end of the rear section 5 is fixedly connected to the middle section 4. The first retractor arm has a middle section 4 at one end fixedly connected to a front section 3. The front section 3 is horizontally positioned, and the angle between the middle section 4 and the horizontal line is 40°-50°. The second retractor arm includes a front section 13, a middle section 14, and a rear section 15. The rear section 15 is fixedly connected to a second operating ring 18. The rear section 15 is horizontally positioned, and the middle section 14 is fixedly connected to the end of the rear section 15. The front section 13 is horizontally positioned, and the angle between the middle section 14 and the horizontal line is 40°-50°. The front section 3 is movably connected to a first pulling rod 7 and a second pulling rod 8. The front section 13 is movably connected to a third pulling rod 9 and a fourth pulling rod 10.

[0037] The end of the first retractor arm front section 3 is hinged to a first fixed seat 2 via a first hinge shaft 1, and a first pull rod 7 and a second pull rod 8 are fixedly installed on the inner side wall of the first fixed seat 2; the end of the second retractor arm front section 13 is hinged to a second fixed seat 11 via a second hinge shaft 12, and a third pull rod 9 and a fourth pull rod 10 are fixedly installed on the inner side wall of the second fixed seat 11.

[0038] There are two first traction rods 7 and two second traction rods 8. The two first traction rods 7 are respectively placed on one side of the first fixed seat 2 and are symmetrically arranged along the center line of the first fixed seat 2. There are two second traction rods 8 and they are symmetrically arranged along the center line of the first fixed seat 2.

[0039] The number of the third traction rod 9 and the fourth traction rod 10 is two. The two third traction rods 9 are respectively arranged on one side of the second fixed seat 11 and symmetrically arranged along the center line of the second fixed seat 11; the two fourth traction rods 10 are respectively arranged on one side of the second fixed seat 11 and symmetrically arranged along the center line of the second fixed seat 11.

[0040] The ends of the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 are provided with arc-shaped extension ends.

[0041] The inner sidewall of the rear section 15 of the second retractor arm is fixedly installed with a fixed bending rod 17 by a support rod 19. The surface of the fixed bending rod 17 is evenly provided with a plurality of fixed teeth 16. The sidewall of the rear section 5 of the first retractor arm is provided with a through hole 20. A locking tooth 21 is provided in the through hole 20. The fixed teeth 16 and the locking teeth 21 mesh with each other.

[0042] The first retractor arm front section 3, first retractor arm middle section 4, and first retractor arm rear section 5 are integral structures, easy to manufacture, and made of medical-grade stainless steel; the second retractor arm front section 13, second retractor arm middle section 14, and second retractor arm rear section 15 are integral structures, easy to manufacture, and made of medical-grade stainless steel; the first fixation seat 2, the second fixation seat 11, the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 are made of medical-grade stainless steel, are safe and antibacterial, and are easy to clean after surgery; the fixation teeth 16, the locking teeth 21, and the fixation bent rod 17 are made of medical-grade stainless steel.

[0043] Instructions for use: During the suture and observation hole puncture process after laparoscopic surgery, first insert the four hooks on the left and right sides below the two fixation seats under the incision. Move them downwards until the front ends of the four hooks reach the adipose tissue above the anterior sheath. At this point, the four hooks on the left and right sides of the fixation seat are fixed above the skin on both sides. By operating the first operating ring 6 and the second operating ring 18, the first and second retractor arms are opened and supported on both sides of the patient's abdominal wall incision. During the operation, the anterior segment 3 of the first retractor arm and the anterior segment 13 of the second retractor arm, the middle segment 4 of the first retractor arm and the middle segment 14 of the second retractor arm, the posterior segment 5 of the first retractor arm and the second retractor arm are... The distal end of the endoscopic arm 15 can help to open the tissues on both sides of the incision. The first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 can open the skin and subcutaneous fat tissue on both sides of the incision. The traction rod located above the first traction rod 7, the second traction rod 8, the third traction rod 9, and the fourth traction rod 10 can open the fat tissue above the anterior sheath and fix the abdominal wall skin layer. After the positions of the first and second traction arms are finally determined, the fixing teeth 16 set on the surface of the fixing curved rod 17 can engage with the locking teeth 21 set in the through hole 20 to fix the positions of the first and second traction arms. Then, by holding the handles of the first operating ring 6 and the second operating ring 18, the abdominal wall on both sides of the laparoscopic observation hole is lifted vertically upward to fully expose the anterior sheath and peritoneum layer below the incision, and the incision is effectively sutured layer by layer.

Claims

1. A laparoscopic viewing port abdominal wall retractor, characterized by: The utility model provides an improved surgical retractor, comprising a first retractor arm and a second retractor arm, the first retractor arm and the second retractor arm are hinged through a hinge shaft, the first retractor arm comprises a first retractor arm front section (3), a first retractor arm middle section (4) and a first retractor arm rear section (5), the end of the first retractor arm rear section (5) is fixedly connected with a first operating finger ring (6), the first retractor arm rear section (5) is horizontally arranged, the end of the first retractor arm rear section (5) is fixedly connected with the first retractor arm middle section (4), the end of the first retractor arm middle section (4) is fixedly connected with the first retractor arm front section (3), the first retractor arm front section (3) is horizontally arranged, and the included angle between the first retractor arm middle section (4) and the horizontal line is 40 DEG-50 DEG;The second retractor arm comprises a second retractor arm front section (13), a second retractor arm middle section (14) and a second retractor arm rear section (15), the end of the second retractor arm rear section (15) is fixedly connected with a second operating finger ring (18), the second retractor arm rear section (15) is horizontally arranged, the end of the second retractor arm rear section (15) is fixedly connected with the second retractor arm middle section (14), the end of the second retractor arm middle section (14) is fixedly connected with the second retractor arm front section (13), the second retractor arm front section (13) is horizontally arranged, and the included angle between the second retractor arm middle section (14) and the horizontal line is 40 DEG-50 DEG;The end of the first retractor arm front section (3) is movably connected with a first pulling rod (7) and a second pulling rod (8);The end of the second retractor arm front section (13) is movably connected with a third pulling rod (9) and a fourth pulling rod (10).

2. A laparoscopic viewing port abdominal wall retractor as defined in claim 1 wherein: The end of the first retractor arm front section (3) is hinged with a first fixed seat (2) through a first hinge shaft (1), and the inner side wall of the first fixed seat (2) is fixedly installed with the first pulling rod (7) and the second pulling rod (8);The end of the second retractor arm front section (13) is hinged with a second fixed seat (11) through a second hinge shaft (12), and the inner side wall of the second fixed seat (11) is fixedly installed with the third pulling rod (9) and the fourth pulling rod (10).

3. A laparoscopic viewing port abdominal wall retractor as defined in claim 2 wherein: The number of the first pulling rod (7) and the second pulling rod (8) is two, two first pulling rods (7) are arranged on one side of the first fixed seat (2) and are symmetrically arranged along the center line of the first fixed seat (2);The number of the second pulling rod (8) is two, and the two second pulling rods (8) are symmetrically arranged along the center line of the first fixed seat (2).

4. A laparoscopic viewing port abdominal wall retractor as defined in claim 3 wherein: The number of the third pulling rod (9) and the fourth pulling rod (10) is two, two third pulling rods (9) are arranged on one side of the second fixed seat (11) and are symmetrically arranged along the center line of the second fixed seat (11);Two fourth pulling rods (10) are arranged on one side of the second fixed seat (11) and are symmetrically arranged along the center line of the second fixed seat (11).

5. A laparoscopic viewing port abdominal wall retractor as defined in claim 4 wherein: The end of the first pulling rod (7), the second pulling rod (8), the third pulling rod (9) and the fourth pulling rod (10) is provided with an arc-shaped extension end.

6. A laparoscopic viewing port abdominal wall retractor as defined in claim 5 wherein: The inner side wall of the second retractor arm rear section (15) is fixedly installed with a fixed bent rod (17) through a support rod (19), and the surface of the fixed bent rod (17) is uniformly provided with a plurality of fixed teeth (16); the side wall of the first retractor arm rear section (5) is provided with a through hole (20), and the through hole (20) is provided with a clamping tooth (21), and the fixed teeth (16) are engaged with the clamping tooth (21).

Images