Special retractor for endoscopic surgery

Abstract

The utility model relates to the technical field of medical instruments, and provides a special retractor for endoscopic surgery, which comprises a pressure sensor, a first pipe section, a second pipe section, a second pipe section and a third pipe section, the negative pressure device is arranged on the first pipe section, an inlet of the negative pressure device communicates with the first pipe section, the negative pressure device is electrically connected with the pressure sensor, and when the pressure sensor detects that the pressure in the first pipe section is lower than a target value, the negative pressure device is started to conduct auxiliary suction. According to the retractor special for the endoscopic surgery, the pressure sensor arranged on the first tube section is used for detecting the air pressure in the first tube section, once the drainage tube is blocked and suction force provided by external suction equipment cannot meet the suction requirement, the negative pressure device is started at the moment, auxiliary suction is conducted, foreign matter blocked in the drainage tube can be sucked out, and the drainage tube is prevented from being blocked. Therefore, smooth aerosol suction is ensured, the lens of the endoscope is prevented from being blurred, and the definition of an operation view is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a retractor for laparoscopic surgery. Background Technology

[0002] Existing retractors used in laparoscopic surgery have a drainage tube welded below the 3rd and 4th arms. The outlet of the drainage tube is connected to an external suction device to aspirate the aerosol generated during the operation, ensuring a clear view of the laparoscopic lens. However, in actual use, the drainage tube is prone to blockage due to its small suction opening. This reduces the suction pressure, leading to poor aerosol aspiration and causing the laparoscopic lens to become blurry, affecting the clarity of the surgical field. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is that in the prior art, the drainage tube is easy to be blocked due to the small suction cavity. At this time, the suction pressure will decrease, resulting in poor aerosol suction, which makes the endoscope lens easy to blur and affects the clarity of the surgical field. Therefore, this utility model provides a special retractor for endoscope surgery.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] This utility model provides a retractor for laparoscopic surgery, comprising a first arm body, a second arm body, a third arm body, and a fourth arm body connected in sequence; it also includes a drainage tube, which is divided into a first section and a second section, the first section being disposed on the outer wall of the third arm body and the second section being disposed on the outer wall of the fourth arm body; it further includes: a pressure sensor disposed on the first section for detecting the air pressure within the first section; and a negative pressure device disposed on the first section, the inlet of which is connected to the first section and electrically connected to the pressure sensor. When the pressure sensor detects that the pressure within the first section is lower than a target value, the negative pressure device is activated to perform auxiliary suction.

[0006] Furthermore, the negative pressure device is equipped with a pressure controller for adjusting the operating parameters of the negative pressure device.

[0007] Furthermore, the pressure sensor is located at the inlet of the negative pressure device, and the inlet of the negative pressure device is connected to the first pipe section via a flexible hose.

[0008] Furthermore, the second pipe section is a square pipe, and several drainage holes are provided on the pipe body near the end of the fourth arm.

[0009] Furthermore, all of the drainage holes are elongated holes.

[0010] Furthermore, the length direction of a portion of the drainage holes is consistent with the length direction of the second pipe segment, while the length direction of the remaining portion of the drainage holes is consistent with the width direction of the second pipe segment.

[0011] Furthermore, the second pipe segment and the fourth arm together form the inner cavity of the second pipe segment.

[0012] The technical solution of this utility model has the following advantages:

[0013] The laparoscopic surgery-specific retractor provided by this utility model uses a pressure sensor installed on the first tube section to detect the air pressure inside the first tube section. Once the drainage tube becomes blocked, the suction force provided by the external suction device cannot meet the suction requirements. At this time, the negative pressure device is activated to assist in suction, which can remove foreign objects blocking the drainage tube, thereby ensuring smooth aerosol suction, preventing the laparoscopic lens from becoming blurry, and improving the clarity of the surgical field of vision. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the laparoscopic surgery retractor in an embodiment of this utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of the laparoscopic surgery retractor in this embodiment of the present invention;

[0017] Figure 3 This is a front view of the overall structure of the laparoscopic surgery retractor in this embodiment of the present invention;

[0018] Figure 4 This is a side view of the overall structure of the laparoscopic surgery retractor in an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. First arm; 2. Second arm; 3. Third arm; 4. Fourth arm; 5. First pipe section; 6. Second pipe section; 7. Negative pressure device; 8. Drainage hole; 9. Pressure sensor; 10. Hoses; 11. Collection bottle. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] like Figures 1 to 4 As shown, this embodiment provides a retractor for laparoscopic surgery, including a first arm body 1, a second arm body 2, a third arm body 3, and a fourth arm body 4 connected in sequence; it also includes a drainage tube, which is divided into a first tube segment 5 and a second tube segment 6. The first tube segment 5 is disposed on the outer side wall of the third arm body 3, and the second tube segment 6 is disposed on the outer side wall of the fourth arm body 4; it also includes: a pressure sensor 9, disposed on the first tube segment 5, for detecting the air pressure inside the first tube segment 5; and a negative pressure device 7, disposed on the first tube segment 5. For example, the negative pressure device 7 can be a negative pressure pump. The inlet of the negative pressure device 7 is connected to the first tube segment 5, and the negative pressure device 7 is electrically connected to the pressure sensor 9. When the pressure sensor 9 detects that the pressure inside the first tube segment 5 is lower than the target value, the negative pressure device 7 is activated to perform auxiliary suction.

[0026] The laparoscopic surgery hook provided in this embodiment detects the air pressure inside the first tube section 5 through the pressure sensor 9 installed on the first tube section 5. Once the drainage tube is blocked, the suction provided by the external suction device cannot meet the suction requirements. At this time, the negative pressure device 7 is activated to perform auxiliary suction, which can remove foreign objects blocking the drainage tube, thereby ensuring smooth aerosol suction, preventing the laparoscopic lens from becoming blurry, and improving the clarity of the surgical field.

[0027] The negative pressure device 7 is equipped with a pressure controller, which adjusts the operating parameters of the negative pressure device 7 based on the air pressure value detected by the pressure sensor 9. For example, when the blockage is severe, the air pressure value detected by the pressure sensor differs significantly from the target value. In this case, the pressure controller controls the negative pressure device to use higher power for auxiliary suction. When the blockage is not severe, the air pressure value detected by the pressure sensor is slightly lower than the target value. In this case, the pressure controller controls the negative pressure device to use lower power for auxiliary suction.

[0028] The pressure sensor 9 is installed at the inlet of the negative pressure device 7, and the inlet of the negative pressure device 7 is connected to the first pipe section 5 through the hose 10.

[0029] The second pipe section 6 is a square tube, and several drainage holes 8 are provided on the pipe body near the end of the fourth arm 4. For example, the drainage holes 8 can all be elongated holes, and the actual size of the drainage holes 8 can be designed as needed.

[0030] In this design, a portion of the drainage holes 8 are aligned with the length of the second tube segment 6, while the remaining portion are aligned with the width of the second tube segment 6. This arrangement facilitates the entry of external aerosols into the second tube segment 6 through the drainage holes 8, allowing for rapid exhaust of the aerosols and ensuring the clarity of the endoscope lens.

[0031] The second tube segment 6 and the fourth arm 4 together form the inner cavity of the second tube segment 6. That is, the second tube segment 6 can share the same side wall with the second arm 2, which is beneficial to increase the inner cavity size of the second tube segment 6 without changing the overall volume of the hook, thus making it more conducive to the suction of aerosol.

[0032] The end of the first pipe section 5 furthest from the second pipe section 6 serves as an interface, which can be connected to external suction equipment and the collection bottle 11 via a pipeline. The outlet of the negative pressure device can be connected to the collection bottle via a pipeline.

[0033] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A retractor for laparoscopic surgery, comprising a first arm body (1), a second arm body (2), a third arm body (3), and a fourth arm body (4) connected in sequence; further comprising a drainage tube, the drainage tube being divided into a first tube segment (5) and a second tube segment (6), the first tube segment (5) being disposed on the outer side wall of the third arm body (3), and the second tube segment (6) being disposed on the outer side wall of the fourth arm body (4); characterized in that, Also includes: A pressure sensor (9) is installed on the first pipe section (5) to detect the air pressure inside the first pipe section (5); A negative pressure device (7) is installed on the first pipe section (5). The inlet of the negative pressure device (7) is connected to the first pipe section (5), and the negative pressure device (7) is electrically connected to the pressure sensor (9). When the pressure sensor (9) detects that the pressure in the first pipe section (5) is lower than the target value, the negative pressure device (7) is activated to perform auxiliary suction.

2. The laparoscopic surgery retractor according to claim 1, characterized in that, The negative pressure device (7) is equipped with a pressure controller for adjusting the operating parameters of the negative pressure device (7).

3. The laparoscopic surgery retractor according to claim 1, characterized in that, The pressure sensor (9) is located at the inlet of the negative pressure device (7), and the inlet of the negative pressure device (7) is connected to the first pipe section (5) through a hose (10).

4. The laparoscopic surgery retractor according to claim 1, characterized in that, The second pipe section (6) is a square pipe, and several drainage holes (8) are provided on the pipe body near the end of the fourth arm (4).

5. The laparoscopic surgery retractor according to claim 4, characterized in that, The drainage holes (8) are all elongated holes.

6. The laparoscopic surgery retractor according to claim 5, characterized in that, One portion of the drainage holes (8) are aligned with the length direction of the second pipe segment (6), while the remaining portion of the drainage holes (8) are aligned with the width direction of the second pipe segment (6).

7. The laparoscopic surgery retractor according to claim 6, characterized in that, The second pipe segment (6) and the fourth arm (4) together form the inner cavity of the second pipe segment (6).

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