Magnetic draw hook for laparoscopic minimally invasive surgery
By designing a magnetically plucked retractor that combines magnetism and elasticity, intra-abdominal intestinal wall traction can be achieved without additional incisions. This solves the problems of increased pain and aesthetics associated with traditional laparoscopic surgery, and improves patient recovery.
Patent Information
- Application Number
- CN202511698953.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-01-02
AI Technical Summary
In traditional laparoscopic minimally invasive surgery, the additional incision for inserting surgical retractors increases postoperative pain and aesthetic issues after recovery.
A magnetically plucked retractor is designed. This device utilizes the magnetic attraction function outside the abdominal cavity to pull the intestinal wall within the abdominal cavity through the combination of magnetism and elastic plates. No additional incision is required. The magnetic end and the folding wings unfold under the action of magnetic repulsion and elastic deformation, and the traction end abuts against the intestinal wall.
This allows for intestinal wall traction without additional incisions during laparoscopic minimally invasive surgery, reducing patient pain and recovery time, and improving aesthetics.
Smart Images
Figure CN121242645A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to a magnetic suction type retractor for laparoscopic minimally invasive surgery. BACKGROUND
[0002] Laparoscopic minimally invasive surgery is a minimally invasive technique that inserts a laparoscope through a small incision in the abdominal wall and uses a high-definition camera system and professional tools to complete the operation. It has the advantages of small trauma, fast recovery, light postoperative pain, and small scar. Before the operation, carbon dioxide gas is injected into the abdominal cavity to expand the space, making it easier to observe and operate. The doctor makes 3-5 small incisions on the patient's abdomen, inserts a laparoscope, and transmits the image inside the abdominal cavity to the display screen in real time, and then performs fine operations through special instruments.
[0003] During the traditional laparoscopic minimally invasive surgery, for the operation of the intestinal wall, the doctor needs to make additional incisions on the patient's abdomen to allow the assistant to insert a surgical retractor into the patient's abdominal cavity through the additional incision, so as to flatten the intestinal wall folds around the target intestinal wall.
[0004] The additional incision for inserting the surgical retractor not only increases the patient's postoperative pain, but also affects the appearance after recovery. SUMMARY
[0005] The purpose of the present application is to provide a magnetic suction type retractor for laparoscopic minimally invasive surgery, which achieves the purpose of pulling the folds around the target intestinal wall inside the abdominal cavity through the instrument outside the abdominal cavity with magnetic attraction function without additional incisions.
[0006] To achieve the above purpose, the present application provides the following technical solution: The present application discloses a magnetic suction type retractor for laparoscopic minimally invasive surgery, which comprises a retractor body; the retractor body has an initial state and a working state, which comprises a magnetic suction end, a first permanent magnet, an adjustable main rod and a traction end: the adjustable main rod has plasticity, and when the retractor body is in the initial state, the adjustable main rod extends in a first direction; the magnetic suction end is arranged at one end of the adjustable main rod, and a first inner cavity is formed in the magnetic suction end, the first permanent magnet is built-in the first inner cavity, and the side of the magnetic suction end away from the adjustable main rod has a magnetic suction surface; the traction end is arranged at the end of the adjustable main rod away from the magnetic suction end; wherein, when the retractor body is in the working state, the adjustable main rod is bent at a preset posture, so that the magnetic suction end is inclined at a first angle relative to the first direction, and / or the traction end is inclined at a second angle relative to the first direction.
[0007] In one of the embodiments, the magnetic end comprises a folding part connected to the circumferential side of the magnetic end, and one side of the folding part has a covering surface, and the side of the folding part away from the covering surface has an unfolding surface; wherein, the folding part has a folded state and an unfolded state: when the hook body is in the initial state, the folding part is in the folded state, and the covering surface is attached to the circumferential surface of the adjustable main rod, so that the folding part covers the end of the adjustable main rod close to the magnetic end; when the hook body is in the working state, the folding part is in the unfolded state, and the unfolding surface is coplanar with the magnetic surface.
[0008] In one of the embodiments, the folding part comprises at least a first folding wing and a second folding wing, and the first folding wing and the second folding wing are evenly arranged around the circumferential side of the magnetic end, the covering surface comprises at least a first surface and a second surface, and the unfolding surface comprises at least a third surface and a fourth surface; the first surface and the third surface are located on the opposite sides of the first folding wing, and the second surface and the fourth surface are located on the opposite sides of the second folding wing; wherein: when the folding part is in the folded state, the first folding wing and the second folding wing are respectively folded relative to the magnetic end, and the first surface and the second surface are respectively attached to the circumferential surface of the adjustable main rod, so that the first folding wing and the second folding wing are respectively covered on the end of the adjustable main rod close to the magnetic end; when the folding part is in the unfolded state, the first folding wing and the second folding wing are respectively unfolded relative to the magnetic end, and the third surface and the fourth surface are respectively coplanar with the magnetic surface.
[0009] In one of the embodiments, the hook body further comprises a second permanent magnet and a third permanent magnet; the inside of the first folding wing is provided with a second inner cavity, and the inside of the second folding wing is provided with a third inner cavity corresponding to the second inner cavity, the second permanent magnet is built-in in the second inner cavity, and the third permanent magnet is built-in in the third inner cavity; wherein, the magnetic pole of the first permanent magnet close to the magnetic surface is the first magnetic pole, the magnetic pole of the second permanent magnet close to the first surface is the second magnetic pole, the magnetic pole of the third permanent magnet close to the second surface is the third magnetic pole, the second magnetic pole and the third magnetic pole repel each other, and the second magnetic pole and the third magnetic pole respectively attract the first magnetic pole.
[0010] In one of the embodiments, the hook body further comprises a first elastic sheet and a second elastic sheet, and the first elastic sheet and the second elastic sheet both have an elastic deformation state and a reset state; the inside of the first folding wing is further provided with a fourth inner cavity, the inside of the second folding wing is further provided with a fifth inner cavity, the inside of the adjustable main rod is provided with a sixth inner cavity corresponding to the fourth inner cavity, and the inside of the adjustable main rod is provided with a seventh inner cavity corresponding to the fifth inner cavity, the fourth inner cavity and the sixth inner cavity are communicated to form a first accommodation space, and the fifth inner cavity and the seventh inner cavity are communicated to form a second accommodation space; the first elastic sheet is built-in in the first accommodation space, and the second elastic sheet is built-in in the second accommodation space; when the folding part is in the folded state, the first elastic sheet and the second elastic sheet are respectively in the elastic deformation state; when the first elastic sheet and the second elastic sheet are respectively in the reset state, the folding part is in the unfolded state.
[0011] In one of the embodiments, the hook body further comprises a plurality of breakable connecting portions; when the folding portion is in the retracted state, the first folding flap is connected to the edge of the second folding flap by the connecting portions, the second folding flap is connected to the edge of the first folding flap by the connecting portions; or, the first surface is connected to the circumferential surface of the adjustable main rod near the magnetic end by the connecting portions, the second surface is connected to the circumferential surface of the adjustable main rod near the magnetic end by the connecting portions; when the connecting portions are broken, the folding portion is in the unfolded state.
[0012] In one of the embodiments, the connecting portions are made of silica gel material; the first elastic sheet and the second elastic sheet are made of plastic material capable of elastic deformation.
[0013] In one of the embodiments, the folding portion is made of medical silica gel material.
[0014] In one of the embodiments, the hook body further comprises a bendable framework, the adjustable main rod is made of medical silica gel material, and an eighth inner cavity is formed in the adjustable main rod, the eighth inner cavity extends in the same direction as the adjustable main rod, and the bendable framework is made of plastic material capable of repeated bending and is arranged in the eighth inner cavity.
[0015] In one of the embodiments, the traction end is shovel-shaped or spoon-shaped, and a plurality of protective protrusions are arranged on the surface of the traction end.
[0016] It can be seen that the application discloses a magnetic type hook for laparoscopic minimally invasive surgery, which is used without opening an additional incision on the abdomen of a patient, and only needs to be inserted into the abdominal cavity of the patient together with a laparoscope through a small incision that must be opened for surgery. Under the cooperation of the laparoscope, a doctor bends the adjustable main rod inside the abdominal cavity of the patient, and cuts the connecting portion at the magnetic end by using surgical scissors or a surgical knife. Under the magnetic repulsion of the second permanent magnet and the third permanent magnet and the elastic deformation and resetting of the first elastic sheet and the second elastic sheet, the first folding flap and the second folding flap are changed from the retracted state to the unfolded state, and the traction end is in abutment with the intestinal wall that needs to be pulled during the bending of the adjustable main rod. An assistant uses an additional device with a magnetic function to magnetically attract the first permanent magnet inside the magnetic end and the second permanent magnet and the third permanent magnet inside the first folding flap and the second folding flap outside the abdomen of the patient, so that the hook body is fixed in the abdominal cavity of the patient, and finally the pulling operation of the intestinal wall in the abdominal cavity of the patient is completed outside the abdomen of the patient. BRIEF DESCRIPTION OF DRAWINGS
[0017] The drawings accompanying the specification of this application provide further understanding of the application, the illustrative embodiments thereof, and explanations about the application and do not constitute an improper limitation of the application. Among them: Figure 1 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 2 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 1 A local enlarged structure schematic diagram of a structure in part A; Figure 3 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 1 A local enlarged structure schematic diagram of a structure in part B; Figure 4 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 5 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 6 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 7 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 6 A local enlarged structure schematic diagram of a structure in part C; Figure 8 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 9 A structure schematic diagram of a magnetic type retractor for laparoscopic minimally invasive surgery in an initial state of a retractor body provided by an embodiment of the application; Figure 8 A local enlarged structure schematic diagram of a structure in part D.
[0018] Explanation of reference signs: 1, retractor body; 110, adjustable main rod; 110a, eighth inner cavity; 110b, sixth inner cavity; 110c, seventh inner cavity; 111, bendable framework; 120, magnetic attraction end; 120a, first inner cavity; 120b, magnetic attraction surface; 121, first folding wing piece; 121a, second inner cavity; 121b, fourth inner cavity; 121c, first surface; 121d, third surface; 122, second folding wing piece; 122a, third inner cavity; 122b, fifth inner cavity; 122c, second surface; 122d, fourth surface; 123, connecting part; 124, first permanent magnet; 125, second permanent magnet; 126, third permanent magnet; 127, first elastic piece; 128, second elastic piece; 130, traction end; 130a, anti-skid convex structure; X, first direction; Y, first angle; Z, second angle. Detailed Implementation
[0019] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.
[0020] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0021] The accompanying drawings illustrate one or more examples of this application. The detailed description uses numerical and alphabetic designations to refer to features in the drawings. Similar or analogous designations in the drawings and description have been used to refer to similar or analogous parts of this application. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components. Example
[0022] like Figures 1 to 9 As shown in the embodiments of this application, a magnetically plucked hook for laparoscopic minimally invasive surgery is provided, which includes a magnetic end 120, an adjustable main rod 110, and a traction end 130.
[0023] Specifically, the magnetic suction end 120, the adjustable main rod 110, and the traction end 130 are all made of medical-grade silicone material. The magnetic suction end 120 and the traction end 130 are located at both ends of the adjustable main rod 110. The adjustable main rod 110 and the traction end 130 are integrally formed by a mold. The surface of the traction end 130 has multiple anti-slip protrusions 130a. After the magnetic suction end 120 is formed by the mold, it is glued and fixed to the adjustable main rod 110 with a special medical-grade silicone adhesive, thus forming an integral hook body 1.
[0024] Specifically, the interior of the adjustable main rod 110 is provided with an eighth inner cavity 110a extending in the same direction as the adjustable main rod 110 and extending to the interior of the traction end 130, and a bendable skeleton 111 made of a plastic material capable of being repeatedly bent is arranged in the eighth inner cavity 110a. Under the action of the bendable skeleton 111, the drag hook body 1 has an initial state and a working state. When the drag hook body 1 is in the initial state, the adjustable main rod 110 can extend along the first direction X. When the drag hook body 1 is in the working state, the adjustable main rod 110 can be bent at a preset posture, so that the magnetic attraction end 120 is inclined at a first angle Y relative to the first direction X, and / or the traction end 130 is inclined at a second angle Z relative to the first direction X.
[0025] Specifically, the peripheral side of the magnetic attraction end 120 is provided with symmetrically distributed first and second folded flaps 121 and 122, the first folded flap 121 has opposite first and third surfaces 121c and 121d, the second folded flap 122 has opposite second and fourth surfaces 122c and 122d, and the side of the magnetic attraction end 120 away from the adjustable main rod 110 has a magnetic attraction surface 120b. The interior of the magnetic attraction end 120 is provided with a first inner cavity 120a, the interior of the first folded flap 121 is provided with a second inner cavity 121a and a fourth inner cavity 121b, the interior of the second folded flap 122 is provided with a third inner cavity 122a and a fifth inner cavity 122b, and the interior of the adjustable main rod 110 is provided with a sixth inner cavity 110b and a seventh inner cavity 110c corresponding to the fourth inner cavity 121b and the fifth inner cavity 122b, respectively. The fourth inner cavity 121b and the sixth inner cavity 110b are communicated to form a first accommodation space, and the fifth inner cavity 122b and the seventh inner cavity 110c are communicated to form a second accommodation space. The first inner cavity 120a is arranged with a first permanent magnet 124, the second inner cavity 121a is arranged with a second permanent magnet 125, and the third inner cavity 122a is arranged with a third permanent magnet 126. The first, second, and third permanent magnets 124, 125, and 126 can be rubidium magnets with strong magnetism. The magnetic pole of the first permanent magnet 124 close to the magnetic attraction surface 120b is a first magnetic pole, the magnetic pole of the second permanent magnet 125 close to the first surface 121c is a second magnetic pole, and the magnetic pole of the third permanent magnet 126 close to the second surface 122c is a third magnetic pole. The second magnetic pole and the third magnetic pole repel each other, and the second magnetic pole and the third magnetic pole attract the first magnetic pole, respectively.
[0026] Specifically, the first and second accommodation spaces are arranged with first and second elastic sheets 127 and 128, respectively, which are made of plastic materials capable of being elastically deformed and have elastic deformation states and reset states. When the first and second elastic sheets 127 and 128 are in the elastic deformation states, they are in J shapes, respectively. When the first and second elastic sheets 127 and 128 are in the reset states, they are in L shapes, respectively.
[0027] Specifically, the first folding wing 121 and the second folding wing 122 both have a sheathed state and an unfolded state: when both are in the sheathed state, the first folding wing 121 and the second folding wing 122 are respectively folded relative to the magnetic suction end 120, and the first surface 121c and the second surface 122c are respectively attached to the circumferential surface of the adjustable main rod 110, so that the first folding wing 121 and the second folding wing 122 are respectively wrapped around the end of the adjustable main rod 110 close to the magnetic suction end 120, at this time, the first elastic sheet 127 and the second elastic sheet 128 are both in an elastic deformation state, and the edge of the first folding wing 121 close to the second folding wing 122 is connected to the edge of the second folding wing 122 close to the first folding wing 121 through the breakable connecting part 123 made of medical silica gel material; when the connecting part 123 made of medical silica gel material is in a broken state, the first folding wing 121 and the second folding wing 122 are in the unfolded state under the repelling action of the second magnetic pole and the third magnetic pole and the elastic deformation recovery action of the first elastic sheet 127 and the second elastic sheet 128, at this time, the first folding wing 121 and the second folding wing 122 are respectively unfolded relative to the magnetic suction end 120, and the third surface 121d and the fourth surface 122d are respectively coplanar with the magnetic suction surface 120b.
[0028] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects: The magnetic suction type retractor for laparoscopic minimally invasive surgery provided by the embodiments of the present application does not need to open an additional incision on the abdomen of the patient when in use, only needs to insert the retractor body 1 into the abdominal cavity of the patient together with the laparoscope through a small incision that must be opened for surgery. Under the cooperation of the laparoscope, the doctor bends the adjustable main rod 110 inside the abdominal cavity of the patient, and cuts the connecting part 123 at the magnetic suction end 120 with surgical scissors or a surgical knife, under the magnetic repulsion of the second permanent magnet 125 and the third permanent magnet 126 and the reset action of the elastic deformation of the first elastic sheet 127 and the second elastic sheet 128, the first folding wing 121 and the second folding wing 122 of the magnetic suction end 120 change from the sheathed state to the unfolded state, and in the bending process of the adjustable main rod 110, the traction end 130 abuts against the intestinal wall that needs to be pulled. The assistant performs magnetic suction on the first permanent magnet 124 inside the magnetic suction end 120 and the second permanent magnet 125 and the third permanent magnet 126 inside the first folding wing 121 and the second folding wing 122 from the outside of the abdomen of the patient through an additional device with magnetic suction function, so that the retractor body 1 is in a fixed state in the abdominal cavity of the patient, and finally the pulling operation on the intestinal wall in the abdominal cavity of the patient from the outside of the abdomen of the patient is completed.
[0029] The above merely provides some embodiments of the present application, but is not intended to limit the present application. Changes and modifications can be made by those skilled in the art upon the reading of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall fall into the scope of protection of the present application.
Claims
1. A magnetically plucked retractor for laparoscopic minimally invasive surgery, characterized in that, include: The hook body has an initial state and a working state, and includes a magnetic suction end, a first permanent magnet, an adjustable main rod, and a traction end: The adjustable main rod is malleable, and when the hook body is in the initial state, the adjustable main rod extends along the first direction; The magnetic suction end is disposed at one end of the adjustable main rod, and a first inner cavity is opened inside it. The first permanent magnet is placed inside the first inner cavity, and the magnetic suction end has a magnetic suction surface on the side away from the adjustable main rod. The traction end is located at the end of the adjustable main rod that is away from the magnetic suction end; When the hook body is in the working state, the adjustable main rod bends in a preset posture so that the magnetic end is tilted at a first angle relative to the first direction, and / or the traction end is tilted at a second angle relative to the first direction.
2. The magnetically plucked retractor for laparoscopic minimally invasive surgery according to claim 1, characterized in that, The magnetic suction end includes a folded portion, which is connected to the periphery of the magnetic suction end. One side of the folded portion has a covering surface, and the side of the folded portion opposite to the covering surface has an unfolded surface. The folded portion has two states: a contracted state and an unfolded state. When the hook body is in the initial state, the folded part is in the contracted state, and the covering surface is in contact with the peripheral surface of the adjustable main rod, so that the folded part covers the end of the adjustable main rod near the magnetic end; When the hook body is in the working state, the folding part is in the unfolded state, and the unfolded surface and the magnetic suction surface are coplanar.
3. A magnetically plucked retractor for laparoscopic minimally invasive surgery according to claim 2, characterized in that, The folding portion includes at least a first folding wing and a second folding wing, the first folding wing and the second folding wing are evenly arranged around the periphery of the magnetic end, the covering surface includes at least a first surface and a second surface, and the unfolding surface includes at least a third surface and a fourth surface; The first surface and the third surface are located on opposite sides of the first folding wing, and the second surface and the fourth surface are located on opposite sides of the second folding wing; in: When the folding part is in the contracted state, the first folding wing and the second folding wing fold relative to the magnetic end, and the first surface and the second surface respectively fit against the peripheral surface of the adjustable main rod, so that the first folding wing and the second folding wing respectively cover the end of the adjustable main rod near the magnetic end; When the folding part is in the unfolded state, the first folding wing and the second folding wing unfold relative to the magnetic end, and the third surface and the fourth surface are coplanar with the magnetic surface.
4. A magnetically plucked retractor for laparoscopic minimally invasive surgery according to claim 3, characterized in that, The hook body also includes a second permanent magnet and a third permanent magnet; The first folding wing has a second inner cavity, and the second folding wing has a third inner cavity corresponding to the second inner cavity. The second permanent magnet is placed in the second inner cavity, and the third permanent magnet is placed in the third inner cavity. Wherein, the magnetic pole of the first permanent magnet near the magnetic attraction surface is the first magnetic pole, the magnetic pole of the second permanent magnet near the first surface is the second magnetic pole, and the magnetic pole of the third permanent magnet near the second surface is the third magnetic pole. The second magnetic pole and the third magnetic pole repel each other, and the second magnetic pole and the third magnetic pole attract each other to the first magnetic pole.
5. A magnetically plucked retractor for laparoscopic minimally invasive surgery according to claim 4, characterized in that, The hook body also includes a first elastic sheet and a second elastic sheet, both of which have an elastic deformation state and a reset state. The first folding wing has a fourth inner cavity, the second folding wing has a fifth inner cavity, the adjustable main rod has a sixth inner cavity corresponding to the fourth inner cavity, and the adjustable main rod has a seventh inner cavity corresponding to the fifth inner cavity. The fourth inner cavity and the sixth inner cavity are connected to form a first accommodating space, and the fifth inner cavity and the seventh inner cavity are connected to form a second accommodating space. The first elastic sheet is built into the first accommodating space, and the second elastic sheet is built into the second accommodating space; When the folded portion is in the contracted state, the first elastic sheet and the second elastic sheet are respectively in the elastic deformation state; When the first elastic sheet and the second elastic sheet are in the reset state, the folded portion is in the unfolded state.
6. A magnetically pleasing retractor for laparoscopic minimally invasive surgery according to claim 4 or 5, characterized in that, The hook body also includes multiple breakable connecting parts; When the folding portion is in the contracted state, the first folding wing is close to the edge of the second folding wing and connected to it through the connecting portion, and the second folding wing is close to the edge of the first folding wing. Alternatively, the first surface is connected to the peripheral surface of the adjustable main rod near the magnetic end via the connecting part, and the second surface is connected to the peripheral surface of the adjustable main rod near the magnetic end via the connecting part; When the connecting part breaks, the folded part is in the unfolded state.
7. A magnetically pleasing retractor for laparoscopic minimally invasive surgery according to claim 6, characterized in that, The connecting part is made of silicone material; The first elastic sheet and the second elastic sheet are made of plastic material that can undergo elastic deformation.
8. A magnetically pleasing retractor for laparoscopic minimally invasive surgery according to claim 2, characterized in that, The folding section is made of medical-grade silicone material.
9. A magnetically pleasing retractor for laparoscopic minimally invasive surgery according to claim 1, characterized in that, The hook body also includes a bendable skeleton. The adjustable main rod is made of medical-grade silicone material and has an eighth inner cavity inside. The eighth inner cavity extends in the same direction as the adjustable main rod. The bendable skeleton is made of a plastic material that can be repeatedly bent and is built into the eighth inner cavity.
10. A magnetically pleasing retractor for laparoscopic minimally invasive surgery according to claim 1, characterized in that, The traction end is shovel-shaped or spoon-shaped, and the surface of the traction end is provided with a plurality of uniformly arranged protective protrusions.