Abdominal retractor for operation

Abstract

The utility model relates to a surgical instrument device, in particular to a surgical abdominal retractor. The operation abdomen retractor comprises a drag hook, one end of the drag hook is a hook body designed to be bent, and the hook body is used for being arranged under the abdomen skin to provide traction force; the fixed seat is kept fixed at a preset position; the drag hook is movably connected with the fixing base through the adjusting mechanism, and the adjusting mechanism enables the drag hook to stretch out and draw back relative to the fixing base; the adjusting mechanism is connected to the fixing base through a multi-direction transmission device so that the multi-direction rotation freedom degree can be allowed. Flexible movement and adjustment can be carried out in all directions, on one hand, the adjustable range of the drag hook is enlarged, and the drag hook adapts to the complex operation environment; in addition, the damping of the adjusting mechanism during angle adjustment can be reduced, so that the operation personnel can perform adjustment operation in different angles and directions according to requirements more conveniently.

Description

Technical Field

[0001] This utility model relates to surgical instruments and devices, and more particularly to a surgical abdominal retractor. Background Technology

[0002] The surgical abdominal retraction device is a medical device used to maintain tension and stability in an abdominal incision. It can retract and fix the abdominal wall in a proper position during surgery. Its main function is to keep the abdominal incision open, providing better visualization for surgical personnel to manipulate and observe the abdomen, and reducing the risk of damage to surrounding tissues.

[0003] There are currently two common types of abdominal retractors on the market: unilateral abdominal retractors and frame-type abdominal retractors.

[0004] A frame-type abdominal retractor is a retractor that needs to be placed on the patient. It typically consists of a fixed frame and retractors. Unlike unilateral abdominal retractors, the height of the retractors in a frame-type abdominal retractor is usually not adjustable. This can limit the surgeon's control over the angle and height of traction in the surgical area.

[0005] Unilateral abdominal retractors address some limitations of frame-type abdominal retractors. They allow surgeons to adjust the retractors to better suit surgical needs. However, unilateral abdominal retractors typically use threaded or hinged methods for angle adjustment, which may limit the range of adjustment and prevent the provision of angle adjustments that perfectly match surgical requirements. This can restrict the surgeon's precise control and adjustment of the operating area in complex surgeries, reducing the applicability of the fixation and locking devices of abdominal surgical retractors.

[0006] Based on this, the present utility model is proposed. Utility Model Content

[0007] To overcome the above technical problems, this application provides a surgical abdominal retractor to achieve the expected effect of expanding the adjustment range and reducing the difficulty of operation for surgical personnel.

[0008] According to a first aspect of this application, a surgical abdominal retractor is provided, comprising: a hook with a bent hook body at one end for placement under the abdominal skin to provide traction; a fixation seat for holding the hook in a predetermined position; and an adjustment mechanism connected to the hook and for enabling the hook to extend and retract relative to the fixation seat, wherein the adjustment mechanism is rotatably connected to the fixation seat to enable the hook to rotate relative to the fixation seat, and wherein the adjustment mechanism is connected to the fixation seat using a multi-directional transmission device to allow multiple degrees of rotational freedom.

[0009] In a further embodiment of this application, the adjustment mechanism includes: a crossbar, the end of which is connected to a hook; and a crossbar adjustment block, which is slidably connected to the crossbar so that the crossbar can move linearly along the extension direction of the crossbar.

[0010] In an optional embodiment of this application, the hook and crossbar are detachably connected.

[0011] In a further embodiment of this application, the adjusting mechanism further includes a hook connection portion disposed at the end of the crossbar; the hook connection portion includes: a connecting shaft extending in the vertical direction of the crossbar, the hook having a connecting hole for the connecting shaft to extend out; and a stop member connected to the connecting shaft to constrain the displacement of the hook in the axial direction of the connecting shaft.

[0012] In a further embodiment of this application, one side of the crossbar in the vertical direction is smoothly arranged, while the other side is a rack structure.

[0013] In a further embodiment of this application, the crossbar adjusting block includes: a mounting block having a through slot for inserting the crossbar; a mating member that engages with a rack structure to constrain the movement of the crossbar; and a roller disposed on the mounting block and in smooth contact with one side of the crossbar.

[0014] In the first optional embodiment of this application, the rack structure is a cylindrical rack; the mating parts include: a pin, one end of which is exposed on the upper side of the mounting block and the other end of which passes through the mounting block and is inserted into the gap between the rack structures; and a second elastic member connected to the pin; wherein the bottom of the pin is inclined, and the inclined surface faces the direction in which the hook extends relative to the fixed seat.

[0015] In the second optional embodiment of this application, the rack structure is a cylindrical rack; the mating part is a worm gear, which is arranged along the crossbar direction, and the helical teeth of the worm gear mesh with the rack structure.

[0016] In a further embodiment of this application, the multi-directional transmission device includes a connecting ball head, which is disposed at the bottom of the crossbar adjusting block and extends downward; the multi-directional transmission device also includes a spherical groove, which is disposed on a fixed base, and the connecting ball head and the spherical groove cooperate to enable the adjusting mechanism to have multi-directional rotational freedom.

[0017] In a further embodiment of this application, a base is fixed in position; a clamping block corresponds to the base and together with the base forms a spherical groove; an adjusting bolt passes through the base and the clamping block to adjust the relative distance between the base and the clamping block to adjust the size of the spherical groove; and a first elastic element is disposed on the adjusting bolt to provide preload to the base and the clamping block.

[0018] In a further embodiment of this application, the surgical abdominal retractor also includes an installation device, which includes a pole and a clamp. The pole and the fixing seat are fixedly connected, and the clamp and the pole are connected to maintain the fixing seat in place.

[0019] In summary, this utility model provides a surgical abdominal retractor, including a hook, a fixing base, and an adjustment mechanism. The fixing base is fixed in a preset position, and the hook is connected to the fixing base via the adjustment mechanism to achieve extension and retraction. Simultaneously, the adjustment mechanism itself releases multi-directional rotational freedom through a multi-directional transmission device, allowing for flexible movement and adjustment in various directions. This expands the adjustable range of the hook, adapting to complex surgical environments. Furthermore, it reduces the damping of the adjustment mechanism when adjusting the angle, making it more convenient for surgeons to adjust the hook at different angles and directions as needed. Surgeons can quickly adjust the angle of the hook by rotating the adjustment mechanism, using the adjustment mechanism to complete the extension and retraction of the hook without repeated disassembly and reassembly, saving time and improving surgical efficiency.

[0020] Other features and advantages of this utility model embodiment will be described in the following detailed description section. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the surgical abdominal retractor provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the adjustment mechanism in the surgical abdominal retractor provided in an embodiment of the present invention;

[0024] Figure 3 An enlarged view showing the position of a fixing seat in the surgical abdominal retractor provided in this embodiment of the utility model;

[0025] Figure 4 An exploded view of the fixing seat in the surgical abdominal retractor provided in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the adjustment mechanism in the surgical abdominal retractor provided in an embodiment of the present invention;

[0027] Figure 6 This is provided by the embodiment of the present utility model. Figure 5Another perspective; and

[0028] Figure 7 This is another structural schematic diagram of the adjustment mechanism in the surgical abdominal retractor provided in this embodiment of the utility model.

[0029] Marker description

[0030] 100. Surgical abdominal retractor;

[0031] 10. Hook; 101. Hook body; 102. Support rod; 1021. Connecting hole;

[0032] 20. Fixed seat; 201. Base; 2011. Groove; 202. Clamping block; 203. Adjusting bolt; 2031. Screw part; 2032. Nut part; 204. First elastic element;

[0033] 30. Adjustment mechanism; 301. Crossbar; 3011. Rack and pinion structure; 302. Crossbar adjusting block; 3021. Mounting block; 3022. Mating part; 3022a. Pin; 3022b. Second elastic element; 3023. Roller; 303. Locking structure; 304. Hook connection part; 3041. Connecting shaft; 3042. Stop element;

[0034] 40. Multidirectional transmission device; 401. Connecting ball head; 402. Spherical groove;

[0035] 50. Install the device. Detailed Implementation

[0036] To make the above and other features and advantages of this application clearer, the application is further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art, and are exemplary only, not restrictive.

[0037] In the following description, numerous specific details are set forth to provide a thorough understanding of this application. However, it will be apparent to those skilled in the art that the specific details are not required to practice this application. In other instances, well-known steps or operations have not been described in detail to avoid obscuring this application.

[0038] As mentioned above, existing unilateral abdominal retractors have limitations in adjustment methods and other technical problems. The present invention provides a surgical abdominal retractor to solve the aforementioned technical problems.

[0039] Please see Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of the surgical abdominal retractor 100 provided by this utility model.

[0040] The surgical abdominal retractor 100 includes a hook 10, a fixing base 20, an adjustment mechanism 30, and a multi-directional transmission device 40;

[0041] In a general inventive concept, the fixed base 20 is fixed in a preset position, and the hook 10 is connected to the fixed base 20 through the adjustment mechanism 30 to achieve axial extension and retraction. At the same time, the adjustment mechanism 30 itself releases multi-directional rotational freedom through the multi-directional transmission device 40.

[0042] Specifically, the hook 10 has a bent hook body 101 at one end and a support rod 102 at the other end. The hook body 101 is placed under the abdominal skin to provide traction, and the support rod 102 connects the hook body 101 and the adjustment mechanism 30. Optionally, the hook body 101 can be bent at a right angle or curved to adapt to the shape of the patient's abdominal incision; the specific dimensions can be designed and manufactured according to specific application requirements.

[0043] The fixation seat 20 is a base or bracket used to fix and support the entire surgical abdominal retractor by keeping it fixed in a predetermined position.

[0044] The adjustment mechanism 30 allows the retractor 10 to extend and retract relative to the fixed base 20. Surgical personnel can adjust the length or position of the retractor according to specific needs and working environment. This adjustability makes the retractor 10 suitable for different size or distance scenarios, providing greater flexibility and adaptability.

[0045] It should be noted that the telescoping of hook 10 refers to its linear telescoping along the length of the bearing rod 102.

[0046] Optionally, the adjustment mechanism 30 can be a sliding structure, a screw adjustment mechanism, a linear guide rail adjustment mechanism, or an adjustable linkage structure, etc.

[0047] The multi-directional transmission device 40 is connected between the fixed base 20 and the adjustment mechanism 30. It can be any of the following structures: universal hinge structure, universal ball structure, universal joint structure, etc. It is designed to release the multi-directional rotational freedom of the adjustment mechanism 30. The adjustment mechanism 30 is then allowed to rotate in multiple directions (usually X, Y, and Z directions), and can move and adjust flexibly in each direction, expanding the adjustable range of the hook to adapt to complex surgical environments.

[0048] At the same time, it can reduce the damping of the adjustment mechanism 30 when adjusting the angle, making it more convenient for surgeons to adjust the angle and direction as needed. Surgeons can quickly adjust the angle of the hook 10 by rotating the adjustment mechanism. The extension and retraction of the hook can be completed by the adjustment mechanism without repeated disassembly and installation, which can save time and improve surgical efficiency.

[0049] Based on this, a specific embodiment of the present invention will be used to further describe the components of the surgical abdominal retractor 100 provided above:

[0050] Please see Figure 2 , Figure 2 This is a schematic diagram of the adjustment mechanism 30 in the surgical abdominal retractor 100 provided in this embodiment of the present invention.

[0051] In a further embodiment of this application, the adjustment mechanism 30 includes a crossbar 301, a crossbar adjustment block 302, and a locking structure 303; the end of the crossbar 301 is connected to the bearing rod 102 of the hook 10; the crossbar adjustment block 302 is slidably connected to the crossbar 301 and can move linearly along the direction of the crossbar 301; the locking structure 303 is provided at the crossbar adjustment block 302 to constrain the movement of the crossbar 301.

[0052] Understandably, the end of the crossbar 301 is connected to the support rod 102 of the hook 10, allowing the hook to be supported by the crossbar 301; the crossbar adjusting block 302 can move linearly along the direction of the crossbar 301 and is slidably connected to it. This allows the position or length of the hook 10 to be adjusted by moving the crossbar adjusting block 302. A locking structure 303 is located at the crossbar adjusting block 302 to lock it onto the crossbar 301. This prevents the crossbar adjusting block 302 from moving accidentally during movement or vibration, and the locking structure 303 provides additional stability and safety, ensuring that the adjustments made remain fixed.

[0053] Regarding the connection between the crossbar 301 and the hook 10, the adjusting mechanism 30 also includes a hook connecting part 304, which is located at the end of the crossbar 301 facing the hook 10 and includes a connecting shaft 3041 and a stop member 3042.

[0054] In this embodiment of the invention, the connecting shaft 3041 protrudes from the end of the crossbar 301 and along the vertical direction of the crossbar 301 (preferably, the connecting shaft 3041 protrudes upward along the crossbar 301 for ease of installation and disassembly). The support rod 102 of the hook 10 is provided with a corresponding connecting hole 1021 on the connecting shaft. The hook 10 is connected to the connecting shaft 3041 through the connecting hole 1021. The stop 3042 is also connected to the connecting shaft 3041 to constrain the axial displacement of the hook 10 on the connecting shaft 3041.

[0055] Specifically, the stop 3042 can be any of a lock nut, a stop washer, or a stop clamp, and there are at least two of them. Each of them is arranged on the upper and lower sides of the support rod 102 and is in contact with the surface of the support rod 102. The stop 3042 below the crossbar 301 is used to receive the hook 10 and can finely adjust the height of the hook 10. The stop 3042 above the crossbar 301 can restrain the axial displacement of the hook 10. At the same time, all the stop 3042 can be removed from the connecting shaft 3041 so that the hook 10 can be replaced as a consumable.

[0056] Continue reading Figure 2 and Figure 3 , Figure 3 This is an enlarged view showing the position of the fixing seat 20 in the surgical abdominal retractor 100 provided in this embodiment of the utility model.

[0057] In one optional embodiment of this utility model, the multi-directional transmission device 40 includes a connecting ball head 401 and a spherical groove 402; wherein the connecting ball head 401 is disposed at the bottom of the crossbar adjusting block 302 and extends downward; the spherical groove 402 is disposed on the fixed base 20, and the connecting ball head 401 and the spherical groove 402 are connected to enable the adjusting mechanism 30 to have multi-directional rotational freedom.

[0058] Understandably, this design allows the connecting ball head 401 to rotate in multiple directions within the spherical groove 402, thereby enabling the adjustment mechanism 30 to be flexible and multi-directionally adjustable. By adjusting the angle between the connecting ball head 401 and the spherical groove 402, the direction and angle of the adjustment mechanism 30 can be changed to adapt to different needs and application scenarios. At the same time, the multi-directional transmission device 40 has less damping during adjustment, making it easier for surgical personnel to operate.

[0059] Please continue reading. Figure 3 and Figure 4 , Figure 4 This is an exploded view of the fixing seat 20 in the surgical abdominal retractor 100 provided in this embodiment of the present invention.

[0060] In a further embodiment of this utility model, the fixed base 20 includes a base 201, a clamping block 202, an adjusting bolt 203, and a first elastic element 204. The base 201 remains in a fixed position; the clamping block 202 and the base 201 are correspondingly and movably configured; an adjusting mechanism 30 is connected between the base 201 and the clamping block 202; the adjusting bolt 203 passes through the base 201 and the clamping block 202 to adjust the relative distance between them; the first elastic element 204 is disposed on the adjusting bolt 203 to provide preload force to the base 201 and the clamping block 202.

[0061] In a specific solution of the present application, the base 201 is integrally provided, and its shape presents a "ji" shape and is vertically arranged. The middle position is an inward concave groove 2011. When the pressing block 202 and the base 201 are assembled, the shapes on the upper sides of the pressing block 202 and the base 201 form a spherical groove 402 that is hemispherical upward to cooperate with the connecting ball head 401. A transverse central channel is formed at the middle groove 2011 of the base 201 and the pressing block 202, and the inner wall of the central channel can be designed with threads to be adapted to the adjusting bolt 203. At the same time, a downward vertical channel is also formed on the lower sides of the pressing block 202 and the base 201, and the inner wall of the vertical channel can also be designed with threads to facilitate the installation of the fixing seat 20 for fixation.

[0062] Further, the adjusting bolt 203 includes a screw rod portion 2031 and a nut portion 2032. The screw rod portion 2031 is inserted into the groove 2011 through the central channel, and the nut portion 2032 abuts against the outside of the pressing block 202. By adjusting the relative distance between the pressing block 202 and the base 201, the connection damping between the spherical groove 402 and the connecting ball head 401 is adjusted.

[0063] It can be understood that when the surgical staff needs to adjust the angle of the retractor 10, by adjusting the position of the adjusting bolt 203, the tightness of the spherical groove 402 is adjusted, so that a gap is reserved between the spherical groove 402 and the connecting ball head 401, and thus the adjusting mechanism 30 can be freely rotated and adjusted. When the retractor 10 is moved to the required position, the adjusting bolt 203 is adjusted again to lock the base 201 and the pressing block 202, so as to change the damping between the spherical groove 402 and the connecting ball head 401, eliminating the risk of the retractor 10 moving during the operation.

[0064] The first elastic member 204 is arranged on the screw rod portion 2031 and is arranged horizontally. The pre-tightening force of the first elastic member 204 can ensure the stable connection between the base 201 and the pressing block 202. By applying an appropriate pre-tightening force, sufficient friction or pressure can be generated between the base 201 and the pressing block 202 to prevent relative movement or loosening, improving stability and reliability.

[0065] Please refer to Figure 5 and Figure 6 , Figure 5 which is a schematic structural diagram of the adjusting mechanism 30 in the surgical abdominal retractor 100 provided by the embodiment of the present utility model, Figure 6 is another perspective of the Figure 5 provided by the embodiment of the present utility model.

[0066] In a preferred solution of the present utility model, the lower side (upper side) of the cross bar 301 is smoothly arranged, and the upper side (lower side) is a rack structure 3011. The rack structure 3011 is preferably any one of a cylindrical rack or a square rack.

[0067] Understandably, one side of the crossbar 301 is smoothly designed to facilitate a sliding connection with the crossbar adjusting block 302, while the other side features a rack structure 3011 for locking the position of the crossbar adjusting block 302. Since the outer surface of the teeth on a cylindrical or square rack is typically smooth, compared to the potentially sharp edges or protruding teeth on a strip rack, the smooth surface reduces friction and scratching between the surgical glove and the rack, lowering the risk of the glove being torn and reducing collisions and damage between surgical instruments and the rack. Furthermore, during surgery, surgical instruments require smooth movement and manipulation, and a smoother surface further reduces the potential risk of instruments getting stuck or damaged.

[0068] Furthermore, the crossbar adjusting block 302 includes: a mounting block 3021, a mating part 3022, and a roller 3023. The mounting block 3021 is provided with a through groove A for the crossbar 301 to be inserted. The mating part 3022 cooperates with the rack structure 3011 to constrain the movement of the crossbar 301. The roller 3023 is disposed on the mounting block 3021 and contacts the smooth side of the crossbar 301, which helps to reduce friction and resistance during the sliding of the crossbar 301. By using the roller 3023 to contact the crossbar 301, smoother sliding and movement can be achieved.

[0069] In one optional embodiment of this utility model, the rack structure 3011 is a straight-tooth cylindrical rack;

[0070] The mating part 3022 includes a pin 3022aa, one end of which is exposed on the upper side of the mounting block 3021, and the other end passes through the mounting block 3021 and is inserted into the gap between the rack structures 3011.

[0071] In a further embodiment of this application, the mating part 3022 further includes a second elastic element 3022b, which is connected to the pin 3022a to provide a fastening force between the pin 3022a and the rack structure 3011, thereby preventing the pin 3022a from slipping out of the rack structure 3011.

[0072] Furthermore, the bottom of the pin 3022a is inclined, with the inclined surface facing the direction in which the hook 10 extends relative to the fixed seat 20, so as to achieve unidirectional self-locking of the rack structure 3011; Figure 5 For reference, pin 3022a restricts the horizontal leftward movement of rack structure 3011 without affecting its horizontal rightward displacement. Only when the surgeon applies external force to pull pin 3022a, at which point pin 3022a completely disengages from the gap between rack structures 3011, can rack structure 3011 move horizontally to the left. This reduces the risk of accidental movement of hook 10 and improves the stability of the retractor.

[0073] Please continue reading. Figure 7 , Figure 7 This is another structural schematic diagram of the adjustment mechanism 30 in the surgical abdominal retractor 100 provided in this embodiment of the present invention.

[0074] In another embodiment of this utility model, the rack structure 3011 is a helical cylindrical rack; the mating part 3022 includes a worm gear, which is arranged along the direction of the crossbar 301, and the helical teeth of the worm gear mesh with the rack structure 3011; the roller 3023 is arranged on the mounting block 3021 and contacts the lower side of the crossbar 301.

[0075] Similarly, the worm gear is positioned along the crossbar direction, and its helical teeth mesh with the rack structure 3011. The function of the worm gear is to convert force into linear motion through rotational motion, thereby pushing or pulling the crossbar adjusting block 302 on the crossbar 301. A roller 3023 is mounted on the mounting block 3021 and contacts the lower side of the crossbar 301. The function of the roller 3023 is to provide sliding and support, allowing the mounting block 3021 to move smoothly on the crossbar 301 and reducing friction and resistance.

[0076] Understandably, the position of the crossbar adjusting block 302 can be finely adjusted by rotating the worm gear. This adjustability makes the adjustment of the crossbar more flexible and precise, with higher accuracy. Simultaneously, the combination of the worm gear and rack structure 3011 has self-locking properties, meaning that when the applied force or torque is stopped, the crossbar adjusting block 302 will remain in its current position and will not automatically slide or move. This self-locking makes the position of the crossbar 301 more stable and reliable, less prone to accidental movement, and improves operational stability.

[0077] Please continue reading. Figure 1 The surgical abdominal retractor also includes: a mounting device 50, which includes a pole (not labeled) and a clamp (not shown), the pole and the fixing seat are fixedly connected, and the clamp is connected to the pole to keep the fixing seat fixed.

[0078] Understandably, the upright is inserted or screwed into the vertical channel under the fixing seat 20, and the clamp can be fixed to the outside to completely fix the entire surgical abdominal retractor 100.

[0079] In summary, the surgical abdominal retractor 100 provided in this embodiment includes a hook 10, a fixing base 20, and an adjustment mechanism 30. The fixing base 20 is fixed in a preset position, and the hook 10 is connected to the fixing base 20 via the adjustment mechanism 30 to achieve extension and retraction. Simultaneously, the adjustment mechanism 30 itself releases multiple rotational degrees of freedom through a multi-directional transmission device 40, allowing for flexible movement and adjustment in various directions, expanding the adjustable range of the hook 10 and adapting to complex surgical environments. It also reduces the damping of the adjustment mechanism 30 when adjusting the angle, making it more convenient for surgeons to adjust at different angles and directions as needed. Surgeons can quickly adjust the angle of the hook 10 by rotating the adjustment mechanism 30, using the adjustment mechanism 30 to complete the extension and retraction of the hook 10 without repeated disassembly and reassembly, saving time and improving surgical efficiency.

[0080] Furthermore, those skilled in the art should understand that if all or part of the sub-modules involved in the surgical abdominal retractor 100 products provided in the embodiments of this utility model are combined or replaced by means of fusion, simple changes, mutual transformation, etc., such as moving the position of each component; or setting the product they constitute as a whole; or having a detachable design; and if the combined components can form a device / apparatus / system with a specific function, then replacing the corresponding components of this utility model with such a device / apparatus / system also falls within the protection scope of this utility model.

[0081] It should be understood that the specific features, operations, and details described herein with respect to the methods of this application can also be similarly applied to the apparatus and system of this application, or vice versa. Furthermore, each step of the methods of this application described above can be performed by a corresponding component or unit of the apparatus or system of this application.

[0082] The technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification, provided that such combination does not contain contradictions.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A surgical abdominal retractor, characterized in that, include: A hook (10) with a bent hook (101) at one end, the hook (101) being placed under the abdominal skin to provide traction; The fixing seat (20) remains fixed in the predetermined position; An adjusting mechanism (30) is connected to the hook (10) and is used to enable the hook (10) to extend and retract relative to the fixed base (20), and the adjusting mechanism (30) is rotatably connected to the fixed base (20) so that the hook (10) can rotate relative to the fixed base (20); and A multi-directional transmission device (40) is connected between the fixed base (20) and the adjustment mechanism (30), and the adjustment mechanism (30) releases multi-directional rotational freedom through the multi-directional transmission device (40).

2. The surgical abdominal retractor according to claim 1, characterized in that, The adjustment mechanism (30) includes: A crossbar (301), the end of which is connected to the hook (10); and A crossbar adjusting block (302) is slidably connected to the crossbar (301) so that the crossbar (301) can move linearly along the extension direction of the crossbar (301); The hook (10) and the crossbar (301) are detachably connected.

3. The surgical abdominal retractor according to claim 2, characterized in that, The adjustment mechanism (30) further includes a hook connection part (304), which is disposed at the end of the crossbar (301); The hook connection (304) includes: a connecting shaft (3041) extending in the vertical direction of the crossbar (301), the hook (10) being provided with a connecting hole (1021) for the connecting shaft (3041) to extend out; and a stop (3042) connected to the connecting shaft (3041) in the connecting hole (1021) to constrain the axial displacement of the hook (10) along the connecting shaft (3041).

4. The surgical abdominal retractor according to claim 2, characterized in that, The crossbar (301) is smoothly arranged on one side in the vertical direction, and the other side is a rack structure (3011).

5. The surgical abdominal retractor according to claim 4, characterized in that, The crossbar adjusting block (302) includes: The mounting block (3021) is provided with a through slot for inserting the crossbar (301); A mating component (3022) mates with the rack structure (3011) to constrain the movement of the crossbar (301); and Roller (3023) is disposed on the mounting block (3021) and contacts the smooth side of the crossbar (301).

6. The surgical abdominal retractor according to claim 5, characterized in that, The rack structure (3011) is a cylindrical rack; The mating component (3022) includes a pin, one end of which protrudes from the upper side of the mounting block (3021), and the other end passes through the mounting block (3021) and is inserted into the gap between the rack structures (3011); and a second elastic member connected to the pin. The bottom of the pin is inclined, with the inclined surface facing the direction in which the hook (10) extends relative to the fixing seat (20).

7. The surgical abdominal retractor according to claim 2, characterized in that, The multi-directional transmission device (40) includes a connecting ball head (401) and a spherical groove (402). The connecting ball head (401) is located at the bottom of the crossbar adjusting block (302) and extends downward. The spherical groove (402) is located on the fixed seat (20). The connecting ball head (401) and the spherical groove (402) cooperate with each other.

8. The surgical abdominal retractor according to claim 7, characterized in that, The mounting base (20) includes: The base (201) remains in a fixed position; The clamping block (202) corresponds to the base (201) and together with the base (201) forms the spherical groove; An adjusting bolt (203), passing through the base (201) and the clamping block (202), is used to adjust the relative distance between the base (201) and the clamping block (202) to adjust the size of the spherical groove; and The first elastic element (204) is disposed on the adjusting bolt (203) and is used to provide preload force for the base (201) and the clamping block (202).

9. The surgical abdominal retractor according to any one of claims 1 to 8, characterized in that, Also includes: The mounting device (50) includes a pole and a clamp, the pole and the fixing seat (20) are fixedly connected, and the clamp is connected to the pole to keep the fixing seat (20) fixed.

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