Adjustable smokeable retractor applied to endoscopic suspension minimally invasive breast surgery

Abstract

The utility model discloses an adjustable smokeable drag hook applied to endoscope suspension minimally invasive breast surgery relates to medical appliance technical field. The drag hook contains two groups of parallel articulated drag hook body, and the drag hook body is composed of handle part and the hook department of both ends, and the drag hook body can rotate oppositely to adjust the angle and range of pulling dynamically, and adapts breast dissection form. One group of drag hook body outer wall is equipped with the positioning piece, and the external suction pipe is detachably connected on the positioning piece, and the suction pipe tail part is sealedly connected with the aspirator. The positioning piece can select rigid circular ring, clamp or locking sleeve, realizes the stable location and quick dismounting of suction pipe. The device integrates tissue pulling and surgical smoke suction, avoids the problem of built-in flue blockage, reduces the crowdedness of surgical area instruments, simplifies the operation process, guarantees the operation cooperation, and adapts to the endoscope minimally invasive requirement.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an adjustable, smoke-proof retractor used in laparoscopic suspension minimally invasive breast surgery. Background Technology

[0002] With the development of minimally invasive and functional breast surgery, endoscopic suspension minimally invasive breast surgery has become the mainstream surgical procedure for the resection of benign breast tumors, breast-conserving surgery for early-stage breast cancer, and breast reconstruction. This procedure creates surgical space through physical suspension, replacing traditional CO2 pneumoperitoneum, thus avoiding the risks of hypercapnia, subcutaneous emphysema, and gas embolism. It also has advantages such as concealed incision, minimal trauma, rapid postoperative recovery, and excellent cosmetic results, and its clinical application is becoming increasingly widespread.

[0003] Surgical retractors, as core instruments in laparoscopic breast surgery for exposing the surgical field and maintaining operating space, need to work with the suspension system to traction and support the breast tissue, flaps, and surrounding tissues, providing a stable channel for laparoscopic observation and instrument manipulation. Currently, most commonly used laparoscopic breast suspension retractors in clinical practice are fixed-shape metal retractors. While they can meet basic traction requirements, they have certain limitations in adapting to breast anatomy, intraoperative dynamic adjustment, surgical smoke removal, and instrument coordination, making them difficult to meet the precise and minimally invasive clinical requirements.

[0004] Most existing surgical retractors do not integrate a smoke extraction function. Tissue traction and intraoperative smoke extraction require two separate sets of instruments, which not only occupies surgical space and exacerbates instrument congestion, but also requires additional assistants, significantly increasing the complexity of the operation and affecting the smoothness of the surgical procedure. Although some integrated design products attempt to integrate the smoke extraction structure with the retractor, they have drawbacks such as the built-in smoke extraction port being easily blocked by tissue, inconvenient instrument cleaning, and interference between the smoke extraction structure and the suspension adjustment mechanism. Among these, the problem of clogging of the smoke extraction port in the built-in L-shaped smoke extraction channel is particularly prominent, and the difficulty in cleaning it after clogging is extremely high.

[0005] In summary, existing devices are insufficient to simultaneously meet the requirements of precise intraoperative traction and efficient smoke extraction, and improvements are necessary. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention proposes an adjustable, smoke-resistant retractor for use in laparoscopic suspension minimally invasive breast surgery.

[0007] The technical solution to the technical problem solved by this utility model is as follows:

[0008] An adjustable, smoke-enabled retractor for use in laparoscopic suspension minimally invasive breast surgery includes two sets of retractor bodies arranged side by side; each retractor body includes a handle portion, with hook portions connected to both ends of the handle portion; the handle portions of the two sets of retractor bodies are hinged to each other so that the two sets of retractor bodies can rotate relative to each other; one set of retractor bodies is detachably connected to an externally mounted, bendable smoking tube.

[0009] Preferably, the handle portions of the two sets of hook bodies are connected by a hinge.

[0010] Preferably, at least two sets of spaced positioning members are fixed to the outer wall of one set of hook bodies, and at least one of the positioning members is provided on both the handle and the hook; the smoking tube can be inserted into the positioning member and limited by the positioning member.

[0011] Preferably, the hook body has a flat rectangular structure.

[0012] Preferably, the smoking tube is made of a sterile medical urinary catheter.

[0013] Preferably, the positioning element is a rigid ring or a rigid ring with a set screw.

[0014] Preferably, the positioning element is a flexible clip with a flexible latch.

[0015] Preferably, the tail end of the smoking tube is sealed with a suction device.

[0016] Preferably, the positioning element is a locking sleeve, which includes a sleeve, one end of which is fixedly connected to a conical slit sleeve, the slit sleeve having a plurality of vertical slits spaced circumferentially; the outer wall of the sleeve is provided with external threads; the sleeve is adapted to be threadedly connected to a locking cap with internal threads, one end of the locking cap having a conical opening; the middle of the sleeve, the slit sleeve, and the locking cap has a through cavity, through which the smoking tube can freely pass; when the locking cap is screwed on, the slit sleeve can be compressed and contracted inward, thereby clamping the smoking tube.

[0017] Preferably, a flange is fixedly connected to the other end of the sleeve, and the flange is fixedly connected to the handle portion.

[0018] The above technical solution has the following advantages or beneficial effects:

[0019] 1. By setting two sets of hinged hook bodies in this utility model, the traction angle and range can be dynamically adjusted during the operation, which can better adapt to the anatomical shape of the breast and meet the clinical needs of precise traction and stable exposure of the surgical field in laparoscopic suspension surgery.

[0020] 2. This invention enables integrated tissue traction and surgical fume extraction, eliminating the need for two separate sets of instruments. This significantly reduces instrument congestion in the surgical area, eliminates the need for additional assistants, simplifies the surgical procedure, and improves surgical fluency. Furthermore, the externally mounted, flexible fume extraction tube eliminates the need for traditional internal fume extraction, preventing tissue blockage of the extraction port. The detachable extraction tube also simplifies instrument cleaning and unclogging.

[0021] 3. In this utility model, the smoking pipe is externally installed and fixed by positioning components. It is independent of the hinge adjustment mechanism of the hook body and has no structural interference. It can realize the hook adjustment and smoking and exhaust operations simultaneously, ensuring the stable and coordinated operation of the two functions. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention in the first example (the smoking tube is omitted).

[0024] Figure 2 This is a schematic diagram of the structure of the present invention in the first example (with a smoking tube).

[0025] Figure 3 yes Figure 2 A schematic diagram of the split structure of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of this utility model in the second example (the smoking tube is omitted).

[0027] Figure 5 yes Figure 4 Enlarged schematic diagram of the structure of region B in the middle.

[0028] Figure 6 This is a schematic diagram of the structure of this utility model in the third example (the smoking tube is omitted).

[0029] Figure 7 This is a schematic diagram of the structure of this utility model in the fourth example (the smoking tube is omitted).

[0030] Figure 8 yes Figure 7 A three-dimensional view of the locking sleeve in conjunction with the smoking tube.

[0031] Figure 9 yes Figure 8 A cross-sectional view of the locking sleeve when it is engaged with the smoking tube.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Hook body; 101. Handle part; 102. Hook part; 2. Hinge; 3. Rigid ring; 31. Set screw; 4. Smoking tube; 5. Connector; 6. Connecting tube; 7. Clamp; 8. Locking sleeve; 81. Sleeve; 811. Flange; 82. Slit sleeve; 83. Slit; 84. Locking cap; 841. Tapered end. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] First example:

[0036] like Figure 1 - Figure 5 As shown in the figure, this embodiment proposes an adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery. It aims to address the technical shortcomings of existing surgical retractors, such as poor adaptability, complex operation, and easy clogging due to smoke accumulation. This retractor achieves integrated and coordinated operation of precise tissue traction and efficient removal of surgical smoke, meeting the precise and minimally invasive requirements of laparoscopic suspension minimally invasive breast surgery. The specific structure is as follows:

[0037] The adjustable, smoke-resistant retractor described in this embodiment includes two sets of retractor bodies 1 arranged side by side. The two sets of retractor bodies 1 are symmetrically positioned and work together to retract breast tissue and skin flaps and expose the surgical field, providing a stable channel for laparoscopic operations. The retractor body 1 is made entirely of medical-grade stainless steel, possessing good rigidity, corrosion resistance, and biocompatibility. It can be reused after autoclaving, meeting the requirements of clinical aseptic operation. Specifically, the retractor body 1 includes a handle portion 101, with hook portions 102 connected to both ends of the handle portion 101. The handle portion 101 has a long, flat structure, facilitating hand operation by the surgeon. The sidewall of the handle portion 101 may also have anti-slip textures to increase friction during hand operation, preventing the retractor from slipping due to sweaty hands during surgery, thus improving the stability and safety of the operation.

[0038] The two ends of the handle 101 and the hook 102 can be made in one piece. The end of the hook 102 is rounded to avoid sharp edges scratching breast tissue, skin flaps and surrounding blood vessels and nerves, thus ensuring the safety of the traction process.

[0039] In some embodiments, the retractor body 1 is a flat rectangular structure. Compared with the traditional circular retractor, this flat structure can effectively increase the contact area with the mammary gland and skin flap, disperse the local stress during the traction process, avoid tissue damage caused by concentrated traction force, and reduce friction and interference between the retractor and the surrounding tissues of the surgical area, which facilitates intraoperative operation and angle adjustment.

[0040] The handles 101 of the two sets of retractor bodies 1 are hinged to each other, allowing the two sets of retractor bodies 1 to rotate relative to each other. This enables dynamic adjustment of the traction angle and range, adapting to individual differences in breast anatomy and varying traction needs during surgery. In some embodiments, the handles 101 of the two sets of retractor bodies 1 are connected by a hinge 2 made of medical-grade stainless steel. The hinge point is located in the middle of the two sets of handles 101, ensuring both the flexibility of rotation of the two sets of retractor bodies 1 and maintaining structural stability after adjustment, preventing angle deviation due to traction force during surgery. Through the hinge 2 connection, the relative rotation angle of the two sets of retractor bodies 1 can be infinitely adjusted from 0 to 90°. The surgeon can adjust the traction angle and range in real time based on feedback from the surgical field under endoscopy, ensuring clear exposure of the surgical field and solving the deficiency of existing fixed-shape retractors that cannot dynamically adapt to surgical needs.

[0041] In this embodiment, by setting two sets of hinged hook bodies 1, the traction angle and range can be dynamically adjusted during the operation, which can better adapt to the anatomical shape of the breast and meet the clinical needs of precise traction and stable exposure of the surgical field in laparoscopic suspension surgery.

[0042] In order to achieve efficient removal of surgical smoke during the operation, avoid smoke from obscuring the surgical field and affecting the operation, and reduce instrument congestion, in this embodiment, one of the puller bodies 1 is detachably connected to an externally bendable smoking tube 4.

[0043] The smoking tube 4 can be made of a medical sterile urinary catheter. Medical urinary catheters have good flexibility, bendability and biocompatibility, and are inexpensive and readily available. They can be flexibly adjusted according to surgical needs so that the suction port of the smoking tube 4 is aligned with the smoke-generating area, improving smoke removal efficiency. At the same time, the inner diameter of the urinary catheter is appropriate, which can ensure sufficient smoke removal flow and avoid occupying too much surgical space due to excessive diameter, thus adapting to the minimally invasive characteristics of laparoscopic surgery.

[0044] To ensure the stability of the smoking tube 4 during surgery and prevent displacement or detachment due to hook adjustment or surgical manipulation, thus affecting smoke extraction, at least two sets of spaced positioning elements are fixed to the outer wall of one set of hook bodies 1. At least one positioning element is correspondingly provided on both the handle portion 101 and the hook portion 102. The smoking tube 4 can be inserted into these positioning elements and limited by them. Multiple sets of positioning elements can provide multi-point limitation for the smoking tube 4, ensuring that it fits snugly against the hook body 1 and does not interfere with the rotation adjustment of the hook or the operation of endoscopic instruments.

[0045] The adjustable smoke-absorbing hook described in this embodiment enables integrated tissue traction and surgical smoke aspiration, eliminating the need for two separate sets of instruments. This significantly reduces instrument congestion in the surgical area, eliminates the need for additional assistants, simplifies the surgical procedure, and improves surgical fluency. Furthermore, the externally mounted, flexible smoke-absorbing tube 4 eliminates the need for traditional internal smoke channels, preventing tissue blockage of the smoke-absorbing port. The detachable smoke-absorbing tube 4 also simplifies instrument cleaning and clogging.

[0046] In some embodiments, the positioning element is a rigid ring 3 or a rigid ring 3 with a set screw 31. The rigid ring 3 is made of medical-grade stainless steel and is fixedly connected to the outer wall of the hook body 1 by welding. The connection is firm and not easy to fall off, and the rigid structure can effectively limit the smoking tube 4, preventing excessive bending of the smoking tube 4 and causing blockage. The inner diameter of the rigid ring 3 is slightly larger than the outer diameter of the smoking tube 4, which facilitates the installation of the smoking tube 4 and ensures that the smoking tube 4 will not wobble significantly after installation. Considering that using only the rigid ring 3 to limit the smoking tube 4 has a significant limitation on the range of sizes that the smoking tube 4 can be adapted to, a rigid ring 3 with a set screw 31 can also be used. The set screw 31 is a medical-grade screw. Tightening the set screw 31 can lock and fix the smoking tube 4, thereby adapting to smoking tubes 4 of different diameters. This structure is suitable for scenarios where the hook angle needs to be frequently adjusted during surgery and the smoking tube 4 is prone to displacement. By locking with the set screw 31, it can be ensured that the smoking tube 4 is always kept in the preset position, ensuring the stability of smoke exhaust.

[0047] The tail end of the smoking tube 4 is sealed with a suction device. Specifically, the connection between the smoking tube 4 and the suction device's connecting tube 6 is achieved through a connector 5. The connector 5 is preferably made of medical-grade borosilicate glass, possessing excellent biocompatibility, high-temperature sterilization resistance, and reusability, meeting the requirements of clinical aseptic operation. One end of the glass connector is a first connecting end adapted to the tail end of the smoking tube 4, and the other end is a second connecting end matched with the suction device's connecting tube 6. Both ends are precision ground, ensuring a tight fit and seamless connection. This precision ground joint achieves a seamless seal, effectively preventing surgical smoke leakage and ensuring efficient smoke extraction. Its installation and disassembly are convenient, allowing for quick connection between the smoking tube 4 and the suction device during surgery. Post-operatively, it is easy to disassemble, clean, and sterilize, reducing the risk of cross-infection and meeting the high-efficiency requirements of surgical procedures.

[0048] The usage process of this embodiment is as follows: Before the operation, the smoking tube 4 is inserted into the positioning device. According to the needs of the surgical site, the smoking tube 4 is adjusted so that the inlet is aligned with the preset smoke exhaust area. If the positioning device with the set screw 31 is used, the set screw 31 is screwed to lock the smoking tube 4. At the same time, the tail of the smoking tube 4 is sealed and connected to the suction device. During the operation, the doctor holds the handle 101 of the hook body 1 and adjusts the relative angle of the two sets of hook bodies 1 through the hinge 2 so that the hook 102 can accurately pull the breast gland and skin flap to expose the surgical field. At the same time, the suction device is turned on, and the smoke generated during the operation is quickly sucked into the suction device through the smoking tube 4 to achieve simultaneous pulling and smoke exhaust. After the operation, the smoking tube 4 can be directly pulled out from the positioning device, which makes it easy to clean and sterilize the hook body 1 and the smoking tube 4 separately, avoiding the problem of inconvenient cleaning after the smoking tube 4 is blocked.

[0049] It can be seen that using a urinary catheter as an external smoking tube 4 meets the needs of clinical application:

[0050] In this embodiment, the smoking tube 4 is preferably made of a sterile medical urinary catheter, which has two major advantages compared to traditional metal or rigid smoking tubes 4: First, it is inexpensive and disposable. Urinary catheters are routine clinical consumables with low procurement costs and easy access. The disposable design can completely avoid the risk of cross-infection, eliminating the need for repeated cleaning and sterilization, and significantly reducing the cost of using and maintaining medical devices. Second, it completely avoids the problem of blockage and is easy to replace. This solution uses an external smoking tube 4, which is independent of the hook body 1, thus avoiding the technical defects of internal smoke channels being easily blocked by tissue and difficult to clean after blockage. Even if the smoking tube 4 becomes blocked during the operation due to special circumstances, the blocked urinary catheter can be quickly pulled out without interrupting the operation, and a new medical urinary catheter can be replaced, ensuring the continuous and stable smoke removal operation without affecting the surgical process and the clarity of the field of vision.

[0051] Second example:

[0052] like Figure 6As shown, in some embodiments, the positioning element can be a flexible clip 7 with a flexible locking slot. This clip 7 is made of medical-grade elastic material, possessing good elasticity, toughness, and biocompatibility. It can be reused after high-temperature steam sterilization, meeting the requirements of clinical aseptic operation. The opening width of the flexible locking slot is slightly smaller than the outer diameter of the smoking tube 4. Relying on the elasticity of the clip 7 itself, the smoking tube 4 can be tightly locked and limited, enabling rapid installation and removal of the smoking tube 4, adapting to smoking tubes 4 of different diameters, while avoiding compression damage to the smoking tube 4. This ensures the smoking tube 4 remains stable during surgery and does not affect the rotation adjustment of the hook or smoke extraction operations.

[0053] Third example:

[0054] like Figure 7 - Figure 9 As shown, in some embodiments, the positioning element can also be a locking sleeve 8, which includes a sleeve 81. One end of the sleeve 81 is fixedly connected to a conical slit sleeve 82. The slit sleeve 82 is provided with a plurality of vertical slits 83 spaced apart along the circumference. The outer wall of the sleeve 81 is provided with external threads. The sleeve 81 is adapted to be threadedly connected to a locking cap 84 with internal threads. One end of the locking cap 84 has a conical constriction 841. The middle of the sleeve 81, the slit sleeve 82 and the locking cap 84 has a through cavity. The inner diameter of the through cavity is adapted to the outer diameter of the smoking pipe 4. The smoking pipe 4 can freely pass through the through cavity, which is convenient for installation and position adjustment. When the locking cap 84 is screwed on, the slit sleeve 82 can be compressed and contracted inward, thereby clamping the smoking tube 4. Specifically, when the locking cap 84 is screwed on, the conical opening 841 of the locking cap 84 will generate radial pressure on the conical slit sleeve 82, causing the slit sleeve 82 to be compressed and contracted inward, thereby tightly clamping the smoking tube 4 that passes through it, achieving a firm fixation of the smoking tube 4 and preventing displacement during the operation.

[0055] In addition, a flange 811 is fixedly connected to the other end of the sleeve 81. The flange 811 is fixedly connected to the handle part 101, for example by welding. The connection is firm and not easy to fall off, ensuring that the locking sleeve 8 remains stable during pulling and adjustment, and does not affect the normal use of the hook.

[0056] The specific usage method is as follows: Before the operation, the locking sleeve 8 is sterilized together with the hook body 1 at high temperature. During the operation, the smoking tube 4 is first inserted through the cavity of the locking sleeve 8, and the position of the smoking tube 4 is adjusted so that the inlet is aligned with the preset smoke exhaust area. Then, the locking cap 84 is turned clockwise, and the conical opening 841 of the locking cap 84 is used to squeeze the suture sleeve 82, causing it to retract inward and clamp the smoking tube 4 to complete the fixation. If the position of the smoking tube 4 needs to be adjusted during the operation, the locking cap 84 is turned counterclockwise, the suture sleeve 82 is loosened, the smoking tube 4 is moved to the appropriate position, and then the locking cap 84 is turned clockwise to clamp it again. After the operation, the locking cap 84 is turned counterclockwise, the smoking tube 4 is removed, and the locking sleeve 8 and the smoking tube 4 are cleaned and sterilized respectively for the next use.

[0057] The above describes several structural examples of this utility model. The reason why the two sets of hook bodies 1 adopt a rotatable structure is explained in detail below:

[0058] The two sets of retractor bodies 1 adopt a rotatable structure to address the technical shortcomings of existing fixed-shape breast endoscopic retractors, such as poor adaptability and inability to meet the dynamic traction requirements during surgery. This design adapts to the precision and minimally invasive clinical requirements of endoscopic suspension breast surgery. The specific reasons are as follows:

[0059] Firstly, it adapts to the complexity of breast anatomy and individual differences. Breast tissue is hemispherically distributed, and there are significant differences in breast size, glandular thickness, and anatomical layers among different patients. Furthermore, the areas requiring traction during surgery (such as different quadrants of the breast) and tissue types (glandular tissue, skin flap) vary, thus requiring different traction angles. Fixed-shape retractors can only pull at a single angle, failing to conform to the hemispherical contour of the breast, easily leading to problems such as inadequate traction, insufficient exposure of the surgical field, or excessive traction causing tissue damage. Rotatable structures, on the other hand, can flexibly adapt to the different breast anatomy characteristics of different patients by adjusting the relative angles of the two sets of retractors, achieving gentle and precise traction.

[0060] Secondly, it meets the needs of dynamic traction and surgical field adjustment during surgery. In laparoscopic suspension minimally invasive breast surgery, the surgeon needs to adjust the range and angle of the surgical field exposure in real time according to the different stages of the surgery (tissue separation, tumor resection, hemostasis and suturing). The rotatable structure eliminates the need to disassemble the hooks. The surgeon can flexibly adjust the relative angle of the two sets of hooks by holding the handle 101. During the tissue separation stage, it expands the traction range and clearly exposes the tissue layers. During the tumor resection stage, it accurately focuses on the surgical area and avoids obscuring the target tissue. During the hemostasis and suturing stage, it fine-tunes the angle to ensure a clear surgical field, ensuring the smoothness and precision of the surgical operation.

[0061] Third, it avoids the operational limitations of fixed retractors. Existing fixed retractors, due to their non-adjustable angle, require frequent replacement with different sizes of retractors to adapt to different surgical scenarios. This not only increases the workload of instrument preparation but may also interrupt the surgical process and prolong the operation time. In contrast, the rotatable structure can achieve multi-angle and multi-range traction with a single retractor, eliminating the need to change instruments, simplifying the surgical procedure, reducing the difficulty of operation for doctors, and reducing instrument congestion in the surgical area, leaving ample space for the operation of laparoscopic instruments.

[0062] Fourth, it improves surgical safety and postoperative recovery. The rotatable structure allows for flexible adjustment of traction force and angle, effectively dispersing traction stress and avoiding local tissue damage. It also precisely avoids important tissues such as chest wall blood vessels and nerves, reducing surgical complications. Furthermore, precise traction ensures a clear surgical field, reducing the risk of surgical errors. This aligns with the development needs of minimally invasive and functional breast surgery, facilitating rapid postoperative recovery for patients.

[0063] It should be noted that this retractor is not only suitable for breast surgery, but also for thyroid surgery. Thyroid surgery also requires traction of tissue to expose the surgical field and timely removal of smoke generated during the operation. The rotatable and adjustable structure and the external smoke extraction tube of this retractor can meet the minimally invasive operation requirements of thyroid surgery, allowing for flexible traction of tissues around the thyroid gland and precise smoke extraction, thus expanding the applicability of the instrument and improving its practicality.

[0064] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. An adjustable, smoke-resistant retractor for use in laparoscopic suspension minimally invasive breast surgery, characterized in that, It includes two sets of hook bodies (1) arranged side by side; each hook body (1) includes a handle part (101), and hook parts (102) are respectively connected to both ends of the handle part (101); the handle parts (101) of the two sets of hook bodies (1) are hinged to each other so that the two sets of hook bodies (1) can rotate relative to each other; an externally mounted, bendable smoking tube (4) is detachably connected to one of the hook bodies (1).

2. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 1, characterized in that, The handle portions (101) of the two sets of hook bodies (1) are connected by a hinge (2).

3. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 1, characterized in that, At least two sets of spaced positioning elements are fixed on the outer wall of one of the hook bodies (1), and at least one of the positioning elements is provided on both the handle part (101) and the hook part (102); the smoking tube (4) can be inserted into the positioning element and is limited by the positioning element.

4. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 1, characterized in that, The hook body (1) has a flat rectangular structure.

5. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 1, characterized in that, The smoking tube (4) is made of a medical sterile urinary catheter.

6. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 3, characterized in that, The positioning element is a rigid ring (3) or a rigid ring (3) with a set screw (31).

7. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 3, characterized in that, The positioning element is a flexible clip (7), which is provided with a flexible slot.

8. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 1, characterized in that, The tail end of the smoking tube (4) is sealed with a suction device.

9. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 3, characterized in that, The positioning component is a locking sleeve (8), which includes a sleeve (81). One end of the sleeve (81) is fixedly connected to a conical slit sleeve (82). The slit sleeve (82) has several vertical slits (83) spaced apart along the circumference. The outer wall of the sleeve (81) is provided with external threads. The sleeve (81) is adapted to be threadedly connected to a locking cap (84) with internal threads. One end of the locking cap (84) has a conical constriction (841). The middle of the sleeve (81), the slit sleeve (82) and the locking cap (84) has a through cavity, through which the smoking tube (4) can freely pass. When the locking cap (84) is screwed on, the slit sleeve (82) can be compressed and contracted inward, thereby clamping the smoking tube (4).

10. The adjustable, smoke-resistant retractor for laparoscopic suspension minimally invasive breast surgery according to claim 9, characterized in that, The other end of the sleeve (81) is fixedly connected to a flange (811), which is fixedly connected to the handle part (101).

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