Suspension type retractor

Abstract

The invention provides a lifting and suspending type retractor. The lifting and suspending type retractor comprises a fixing structure, a first hook plate, a second hook plate, a traction device and a lifting and suspending device. The first hook plate is detachably connected to the traction device, and the second hook plate is detachably connected to the lifting and suspending device. The traction device is rotationally connected with the fixing structure and can adjust the direction and position of the first hook plate. The lifting and suspending device is detachably arranged on the fixing structure and can adjust the height, the position and the angle of the second hook plate. In the operation period, the position of the first hook plate can be adjusted through the traction device, an incision is fully retracted, meanwhile, the height and the position of the second hook plate are adjusted through the lifting and suspending device, and an organ to be lifted and suspended is lifted and suspended to a proper angle and a proper position, so that a stable and reliable incision retraction effect and an organ lifting and suspending effect are provided for a doctor; therefore, sufficient visual field exposure is provided for doctors so that the doctors can carry out an operation, the working intensity of the doctors and assistants of the doctors is reduced, and the risk of hurting surrounding tissues in the operation process is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of surgical instruments, and in particular, relates to a lifting and hanging retractor. Background Art

[0002] A surgical abdominal retractor is a medical device used to maintain the tension and stability of an abdominal incision. It can pull the abdominal wall open and fix it in the appropriate position during surgery to keep the abdominal wall incision open, provide better visualization conditions for surgical personnel to operate and observe the abdomen, and reduce the risk of damaging surrounding tissues.

[0003] Most of the retractors currently available on the market are only focused on pulling abdominal incisions. However, in actual abdominal surgery, especially in the field of liver transplantation, when the surgeon is freeing the lower blood vessels of the organ, he or she often needs an assistant to hold a large S retractor to manually suspend the organ for a long time, which not only greatly increases the doctor's workload, but also fails to provide a stable and reliable field of view exposure. Summary of the invention

[0004] The present application provides a lifting and hanging retractor to solve the technical problems of insufficient visual field exposure and high work intensity of doctors and their assistants.

[0005] The present application provides a lifting and suspending retractor, which includes a fixed structure, a first hook plate, a second hook plate, a pulling device and a lifting and suspending device. The first hook plate is detachably connected to the pulling device, and the second hook plate is detachably connected to the lifting and suspending device. The pulling device is rotatably connected to the fixed structure so as to be able to adjust the orientation of the first hook plate relative to the fixed structure, and the pulling device is configured to be able to drive the first hook plate to make a linear motion so as to adjust the position of the first hook plate relative to the fixed structure. The lifting and suspending device is detachably arranged on the fixed structure so as to adjust the height of the second hook plate relative to the fixed structure, and the lifting and suspending device is configured to be able to drive the second hook plate to move so as to adjust the position and angle of the second hook plate relative to the fixed structure.

[0006] In an optional solution of the present application, the pulling device includes: a first connecting member, rotatably connected to the fixed structure to adjust the orientation of the first hook plate relative to the fixed structure; a main body, connected to the first connecting member and provided with a guide channel; and a pushing member, passed through the guide channel and detachably connected to the first hook plate, and the pushing member is configured to be able to move along the guide channel under the action of force to drive the first hook plate to move in a straight line.

[0007] In an optional solution of the present application, the pusher is provided with a plurality of first teeth arranged at intervals. The pulling device further includes: a ratchet, provided with a plurality of second teeth capable of meshing with the first teeth; and a handle, connected to the ratchet and capable of driving the ratchet to rotate under the action of a force, so that the pusher drives the first hook plate to perform a linear motion.

[0008] In an optional solution of the present application, the pulling device further includes a limiting assembly, a portion of which can be inserted into or removed from a tooth groove between two of the first tooth portions, so that the pushing member drives the first hook plate to perform unidirectional linear motion or bidirectional linear motion.

[0009] In an optional solution of the present application, the limit assembly includes: a limit member, provided with a limit protrusion; an elastic member, the two ends of which are respectively in contact with the limit protrusion and the main body; and a release member, which is provided on the main body and connected to the limit member. The limit protrusion is disengaged from the tooth groove between the first tooth parts under the action of the release member when the release member is acted upon by an external force, and is inserted into the tooth groove between the first tooth parts under the action of the elastic member when the external force on the release member is cancelled.

[0010] In an optional solution of the present application, the main body is formed with an installation cavity, and the installation cavity is communicated with the guide channel. The limit assembly also includes a connecting shaft, and the connecting shaft and the limit member are arranged in the installation cavity, and the limit member is rotatably connected to the main body through the connecting shaft. The two ends of the elastic member are respectively abutted against the limit protrusion and the inner wall of the installation cavity, and a part of the release member is located in the installation cavity to connect with an end of the limit member away from the limit protrusion.

[0011] In an optional solution of the present application, the lifting device includes: a second connecting member, which is detachably connected to the fixed structure to adjust the height of the second hook plate relative to the fixed structure; a lifting arm, which is connected to the second connecting member and detachably connected to the second hook plate, and the lifting arm is configured to drive the second hook plate to rotate with multiple degrees of freedom under the action of force to adjust the position and angle of the second hook plate relative to the fixed structure.

[0012] In an optional solution of the present application, the lifting arm includes a first joint, a second joint, a first arm body, a second arm body and an adjusting member. The first joint is connected to the second connecting member, and the second joint is detachably connected to the second hook plate. One end of the first arm body is connected to the first joint ball head, and the other end is connected to the adjusting member; one end of the second arm body is connected to the second joint ball head, and the other end is connected to the adjusting member. The adjusting member is configured to be able to adjust the relative positional relationship between it and the first arm body, the first joint of the second arm body, and the second joint, so that the first arm body and the second arm body can rotate relative to the adjusting member, the first arm body can rotate relative to the first joint, the second arm body can rotate relative to the second joint, or the rotation of the first arm body, the second arm body, the first joint, and the second joint can be restricted.

[0013] In an optional solution of the present application, the first hook plate is a curved plate with a curved hook shape, and / or the second hook plate is a curved plate with a curved hook shape.

[0014] In an optional solution of the present application, the fixing structure includes: a vertical pole connected to the pulling device and the lifting device; a first clamping block provided with a first clamping slot for cooperating with the vertical pole; a second clamping block connected to the first clamping block and provided with a second clamping slot for cooperating with the operating bed; a first fastener used to lock and connect the first clamping block with the vertical pole; and a second fastener used to lock and connect the second clamping block with the operating bed.

[0015] In summary, the lifting and hanging retractor provided in the present application has at least the following beneficial effects:

[0016] Based on the lifting and suspending retractor of the present application, during the operation, the position of the first hook plate can be adjusted by the pulling device and the tissue to be pulled can be pulled so that the incision is fully pulled open, and at the same time, the height and position of the second hook plate can be adjusted by the lifting and suspending device and the organ to be lifted can be lifted to a suitable angle and position, so that based on the cooperation of the pulling device and the lifting and suspending device, a stable and reliable incision pulling effect and organ lifting effect can be provided to the doctor, thereby providing the doctor with sufficient visual field exposure so that the doctor can perform the operation, thereby not only reducing the workload of the doctor and his assistant, but also reducing the risk of injury to the surrounding tissue during the operation. In addition, based on the detachable connection between the first hook plate and the pulling device and the detachable connection between the second hook plate and the lifting and suspending device, the lifting and suspending retractor of the present application can be configured with first hook plates and second hook plates of different specifications and models to adapt to different patients, different pulling parts and lifting organs, thereby improving the application scope of the lifting and suspending retractor of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of a lifting and hanging retractor provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the structure of a pulling device in a lifting and hanging retractor provided in an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of the limiting component inside the main body of the embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the structure of the suspension device in the suspension type retractor provided in an embodiment of the present application.

[0022] The reference numerals are as follows:

[0023] 10. Fixed structure; 11. Vertical pole; 12. First clamping block; 13. Second clamping block; 14. First fastener; 15. Second fastener; A. First clamping slot; B. Second clamping slot;

[0024] 20. first hook plate; 21. first connecting portion; 22. first hook portion;

[0025] 30. second hook plate; 31. second connecting portion; 32. second hook portion;

[0026] 40. pulling device; 41. first connecting member; 42. main body; C. guide channel; D. mounting cavity; 43. pushing member; 431. first tooth portion; 44. ratchet; 45. handle; 46. limiting assembly; 461. limiting member; 461A. limiting protrusion; 462. elastic member; 463. releasing member; 464. connecting shaft;

[0027] 50. Suspension device; 51. Second connecting member; 52. Suspension arm; 521. First joint; 522. Second joint; 523. First arm body; 524. Second arm body; 525. Adjustment member;

[0028] 60. Fixing parts. DETAILED DESCRIPTION

[0029] In order to make the above and other features and advantages of the present application more clear, the present invention is further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary and not restrictive.

[0030] In the description of this application, if there is a feature defined as "first" or "second" for descriptive purposes only, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Features defined as "first" or "second" may explicitly or implicitly include at least one of the defined features. If the description of "plurality" appears, the general meaning is to include at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and so on should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In the description of the present application, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0033] Figure 1 This is a schematic structural diagram of the lifting and hanging retractor provided in an embodiment of the present application.

[0034] Reference Figure 1 The lifting and suspending retractor provided in the present application includes a fixing structure 10 , a first hook plate 20 , a second hook plate 30 , a pulling device 40 and a lifting and suspending device 50 .

[0035] The fixed structure 10 is used as a bearing component, which is used to install and support the pulling device 40 and the lifting device 50 on the one hand, and to install the lifting retractor of the present application on the side rail of the operating table on the other hand.

[0036] The first hook plate 20 is detachably connected to the traction device 40, and is used to contact the tissue to be stretched in the human body. The first hook plate 20 can be configured as one or more in number. When the first hook plate 20 is configured as multiple, the multiple first hook plates 20 have different specifications and models, so that they can be selected and used according to different patients or different stretching parts.

[0037] The second hook plate 30 is detachably connected to the lifting device 50 and is used to contact the organ to be lifted by the human body. The second hook plate 30 can also be configured as one or more in number. When the second hook plate 30 is configured as multiple, the multiple second hook plates 30 have different specifications and models, so that they can be selected and used according to different patients or different lifting parts.

[0038] The pulling device 40 is connected to the first hook plate 20 and is rotatably connected to the fixed structure 10. The position of the pulling device 40 in the circumferential direction of the fixed structure 10 will affect the position of the first hook plate 20 relative to the tissue or organ to be pulled. Therefore, based on the rotational connection between the pulling device 40 and the fixed structure 10, the position of the first hook plate 20 can be adjusted by adjusting the position of the pulling device 40 relative to the fixed structure 10. Specifically, according to the position of the tissue to be pulled, an external force can be applied to the pulling device 40 to rotate the pulling device 40 relative to the fixed structure 10 by a corresponding angle, thereby adjusting the pulling device 40 to the target position in the circumferential direction of the fixed structure 10, thereby adjusting the position of the first hook plate 20 to be consistent with the position of the tissue to be pulled.

[0039] Moreover, based on the structure of the pulling device 40 itself, the pulling device 40 can also drive the first hook plate 20 to make linear motion, so as to adjust the position of the first hook plate 20 relative to the fixed structure 10 and the tissue to be pulled, thereby realizing the position adjustment of the first hook plate 20 and the pulling of the tissue to be pulled. Specifically, before the pulling device 40 pulls the tissue to be pulled, if there is a certain distance between the first hook plate 20 and the incision, the pulling device 40 can drive the first hook plate 20 to make linear motion toward the incision until the first hook plate 20 moves to the position of the incision; and when the first hook plate 20 is at the position of the incision, the first hook plate 20 can be placed under the skin tissue of the abdominal wall of the incision, and the pulling device 40 can drive the first hook plate 20 to make reverse linear motion to pull the tissue to be pulled so that the incision is pulled open and the position of the first hook plate 20 is maintained after the pulling is in place, so as to provide doctors with sufficient visual exposure.

[0040] The lifting device 50 is connected to the first hook plate 20 and is detachably arranged on the fixed structure 10. Based on the detachable connection between the lifting device 50 and the fixed structure 10, the position and height of the second hook plate 30 relative to the fixed structure 10 and the organ to be lifted can be adjusted by adjusting the installation height of the lifting device 50 on the fixed structure 10. Moreover, based on the structure of the lifting device 50 itself, the lifting device 50 can also drive the second hook plate 30 to move to adjust the position and angle of the second hook plate 30 relative to the fixed structure 10, so that the organ to be lifted can be lifted and the tissue to be lifted can be lifted to a suitable angle and position during the operation, providing doctors with sufficient visual field exposure.

[0041] Therefore, based on the lifting and suspending retractor of the present application, during the operation, the position of the first hook plate 20 can be adjusted by the pulling device 40 and the tissue to be pulled can be pulled so that the incision is fully pulled open. At the same time, the height and position of the second hook plate 30 can be adjusted by the lifting and suspending device 50 and the organ to be lifted and suspended can be lifted and suspended to a suitable angle and position when the surgeon is performing the lower blood vessel freeing of the organ. Therefore, based on the cooperation of the pulling device 40 and the lifting and suspending device 50, a stable and reliable incision pulling effect and organ lifting effect can be provided to the doctor, thereby providing the doctor with sufficient visual field exposure so that the doctor can perform the operation, thereby not only reducing the workload of the doctor and his assistant, but also reducing the risk of injury to the surrounding tissue during the operation. In addition, based on the detachable connection between the first hook plate 20 and the pulling device 40 and the detachable connection between the second hook plate 30 and the lifting and suspending device 50, the lifting and suspending retractor of the present application can be configured with first hook plates 20 and second hook plates 30 of different specifications and models to adapt to different patients, different pulling parts and lifting organs, thereby improving the application scope of the lifting and suspending retractor of the present application.

[0042] Continue to refer to Figure 1 The fixing structure 10 includes a vertical pole 11 , a first clamping block 12 , a second clamping block 13 , a first fastener 14 and a second fastener 15 .

[0043] The vertical pole 11 is used to install the pulling device 40 and the lifting device 50. Based on the rotational connection between the pulling device 40 and the vertical pole 11, the pulling device 40 can be installed at different orientations of the vertical pole 11; based on the detachable connection between the lifting device 50 and the vertical pole 11, the lifting device 50 can be installed at different height positions of the vertical pole 11.

[0044] The first clamping block 12 is provided with a first clamping groove A for cooperating with the vertical pole 11. After the corresponding part of the vertical pole 11 is received in the first clamping groove A, the first clamping block 12 can be locked and connected with the vertical pole 11 through the first fastener 14. Specifically, when the first fastener 14 is rotated in the forward direction, a part of the first fastener 14 can be abutted against the vertical pole 11 and the vertical pole 11 can be abutted against the inner wall of the first clamping groove A, so as to realize the fixation between the first clamping block 12 and the vertical pole 11; when the first fastener 14 is rotated in the reverse direction, the fixation between the first clamping block 12 and the vertical pole 11 can be released.

[0045] The second clamping block 13 is connected to the first clamping block 12 and is provided with a second clamping slot B for cooperating with the operating bed. After the corresponding part of the operating bed (such as the side rail) is accommodated in the second clamping slot B, the second clamping block 13 can be locked and connected with the operating bed through the second fastener 15. Specifically, one end of the second fastener 15 can abut against the side rail of the operating bed and make the side rail of the operating bed abut against the inner wall of the second clamping slot B to achieve the fixation between the second clamping block 13 and the side rail of the operating bed; when the second fastener 15 is rotated in the reverse direction, the fixation between the second clamping block 13 and the side rail of the operating bed can be released.

[0046] Continue to refer to Figure 1 , the first hook plate 20 is a hook-shaped arc plate. Specifically, the first hook plate 20 includes a first connecting portion 21 and a first hook portion 22 connected to each other, the first connecting portion 21 is detachably connected to the traction device 40, and the first hook portion 22 is formed into a hook-shaped structure. The first hook plate 20 hooks the tissue to be pulled at the incision position through the first hook portion 22 and pulls the tissue to be pulled under the action of the traction device 40 until the incision is pulled to the target effect and the incision pulling effect is maintained, so as to provide a sufficient visual field exposure for the doctor. Therefore, based on the first hook plate 20 in the shape of a hook-shaped arc plate, the first hook plate 20 can fully contact the tissue to be pulled, thereby improving the stability during the pulling process.

[0047] Similarly, the second hook plate 30 is a hook-shaped arc plate. Specifically, the second hook plate 30 includes a second connecting portion 31 and a second hook portion 32 connected to each other, the second connecting portion 31 is detachably connected to the lifting device 50, and the second hook portion 32 is formed into a hook-shaped structure. The second hook plate 30 is placed on the top of the organ to be lifted and suspended through the second hook portion 32 and adjusts the position and angle of the organ to be lifted and suspended under the action of the lifting device 50 and maintains it at this position and angle, so as to achieve continuous and stable lifting of the organ, so that the doctor can perform surgery. Therefore, based on the hook-shaped arc plate-shaped second hook plate 30, the second hook plate 30 can fully contact with the organ to be lifted and suspended, thereby improving the stability during the lifting process.

[0048] Figure 2 This is a schematic diagram of the structure of the pulling device in the lifting and hanging retractor provided in an embodiment of the present application. Figure 3This is a schematic diagram of the structure of the limiting component inside the main body of an embodiment of the present application.

[0049] Reference Figure 2 The pulling device 40 includes a first connecting member 41 , a main body 42 and a pushing member 43 .

[0050] The first connecting member 41 is sleeved on the end of the vertical rod 11 of the fixed structure 10 and is rotatably connected to the vertical rod 11. By rotating the angle of the first connecting member 41 relative to the vertical rod 11, the position of the first hook plate 20 relative to the fixed structure 10 can be adjusted. After the first hook plate 20 is adjusted to the target position, the first connecting member 41 and the vertical rod 11 can be locked and connected by the fixing member 60.

[0051] The main body 42 is used to install the pusher 43, and the main body 42 is connected to the first connecting member 41 and is provided with a guide channel C. The pusher 43 is passed through the guide channel C and is detachably connected to the first hook plate 20, and the pusher 43 is configured to be able to move along the guide channel C under the action of force to drive the first hook plate 20 to make a linear motion.

[0052] Since the first hook plate 20 is connected to the pushing member 43, under the action of external force, while the pushing member 43 makes a linear motion along the guide channel C, the first hook plate 20 also makes a linear motion along with the pushing member 43, thereby realizing the linear motion of the first hook plate 20 in the extension direction of the guide channel C, thereby improving the accuracy of the pulling device 40 during the pulling process.

[0053] Specifically, the pusher 43 can directly perform linear motion in the extension direction of the guide channel C under an external force (such as thrust and / or pull). Of course, the pusher 43 can also be connected to other motion mechanisms, by converting the motion of other motion mechanisms into linear motion of the pusher 43.

[0054] In some embodiments, the pusher 43 is a ratchet structure, and the pusher 43 is provided with a plurality of first teeth 431 arranged at intervals. The pulling device 40 further includes a ratchet 44 and a handle 45, and the ratchet 44 is provided with a plurality of second teeth (not shown) that can mesh with the first teeth 431. The handle 45 is connected to the ratchet 44 and can drive the ratchet 44 to rotate under the action of force, so that the pusher 43 drives the first hook plate 20 to perform linear motion. Specifically, when the handle 45 is rotated, the ratchet 44 will rotate synchronously with the handle 45, and at this time, the pusher 43 performs linear motion along the guide channel C under the action of the ratchet 44.

[0055] Through the meshing transmission between the ratchet 44 and the pusher 43, the rotational movement of the handle 45 can be converted into the linear movement of the pusher 43. This transmission method is simple and stable, and can achieve stable and efficient traction of the traction device 40 on the tissue to be pulled.

[0056] Reference Figure 3 The pulling device 40 further includes a limiting assembly 46, a portion of which can be inserted into or removed from the tooth groove between two first tooth portions 431, so that the pusher 43 drives the first hook plate 20 to perform unidirectional linear motion or bidirectional linear motion.

[0057] Specifically, when part of the limiting assembly 46 is inserted into the tooth groove between two first tooth portions 431 of the pusher 43, based on the limiting effect of the limiting assembly 46, the pusher 43 can only move in a direction away from the incision under the action of the ratchet 44, so that the first hook plate 20 performs a unidirectional linear motion, thereby achieving the pulling of the incision in this state. In addition, in this state, due to the meshing cooperation between the ratchet 44 and the pusher 43, the pusher 43 drives the first hook plate 20 to perform intermittent unidirectional linear motion.

[0058] When this part of the limiting component 46 escapes from the tooth groove between the two first tooth portions 431 of the pushing member 43, the limiting function of the limiting component 46 is released, and the pushing member 43 can make a forward and backward linear motion in the extension direction of the guide channel C under the action of the ratchet 44, so that the first hook plate 20 can make a bidirectional linear motion.

[0059] In addition, it should be noted that, under the limiting action of the limiting assembly 46, when the handle 45 is not rotated, one-way rapid adjustment can also be achieved by directly pushing the pushing member 43 to achieve rapid retraction of the incision; when the limiting action of the limiting assembly 46 is released, when the handle 45 is not rotated, two-way rapid adjustment can also be achieved by directly pushing and pulling the pushing member 43 to achieve rapid adjustment of the position of the first hook plate 20.

[0060] Therefore, during the pulling process of the pulling device 40, the first hook plate 20 is placed under the skin tissue of the incision abdominal wall, and the handle 45 is rotated. Based on the limiting effect of the limiting assembly 46, the pusher 43 drives the first hook plate 20 to make intermittent unidirectional linear motion, so as to retract the incision and achieve full exposure of the field of vision, thereby improving the stability of the pulling device 40 during the pulling process. When the handle 45 is stopped, based on the limiting effect of the limiting assembly 46, the pusher 43 cannot slide in the reverse direction, and it can stably maintain the retraction effect of the incision. In addition, before the pulling device 40 is pulled, the limiting effect of the limiting assembly 46 can be released so that the pusher 43 can move flexibly in both directions, thereby helping to quickly adjust the first hook plate 20 to the incision position; and after the pulling device 40 is pulled, the limiting effect of the limiting assembly 46 can be released so that the pusher 43 can move in the reverse direction, thereby releasing the pulling tissue at the incision.

[0061] Continue to refer to Figure 3The limiting assembly 46 includes a limiting member 461, an elastic member 462 and a releasing member 463. The limiting member 461 is provided with a limiting protrusion 461A. The two ends of the elastic member 462 are respectively abutted against the limiting protrusion 461A and the main body 42. The releasing member 463 is provided on the main body 42 and connected to the limiting member 461.

[0062] Among them, the limiting protrusion 461A can slip out of the tooth groove between the first tooth portions 431 under the action of the releasing member 463 when the releasing member 463 is subjected to external force, and can be inserted into the tooth groove between the first tooth portions 431 under the action of the elastic member 462 when the external force applied to the releasing member 463 is cancelled.

[0063] Specifically, the release member 463 can be constructed as a button structure. When the release member 463 is pressed, under the squeezing action of the release member 463, the limiting protrusion 461A disengages from the tooth groove between the first tooth portion 431 and squeezes the elastic member 462. At this time, the pushing member 43 can move flexibly in both directions; when the release member 463 is released, under the elastic squeezing action of the elastic member 462, the limiting protrusion 461A is inserted into the tooth groove between the first tooth portion 431. At this time, the pushing member 43 can move intermittently in one direction.

[0064] The main body 42 is formed with an installation cavity D, which is communicated with the guide channel C. The limiting assembly 46 further includes a connecting shaft 464, which is arranged in the installation cavity D with the limiting member 461, and the middle portion of the limiting member 461 is rotatably connected to the main body 42 via the connecting shaft 464, and the first end of the limiting member 461 is provided with a limiting protrusion 461A, and the second end is connected to the release member 463, so that when the first end or the second end of the limiting member 461 is subjected to a force, the other end can move in the opposite direction.

[0065] Two ends of the elastic member 462 respectively abut against the limiting protrusion 461A and the inner wall of the installation cavity D. Part of the release member 463 is located in the installation cavity D to connect with one end of the limiting member 461 away from the limiting protrusion 461A.

[0066] Since one end of the limiting member 461 is provided with a limiting protrusion 461A and the other end is connected to the release member 463, when either end of the limiting member 461 is subjected to a force, the other end can move in the opposite direction, thereby realizing the conversion of the limiting member 461 between inserting into or disengaging from the tooth groove.

[0067] Figure 4 This is a schematic diagram of the structure of the suspension device in the suspension type retractor provided in an embodiment of the present application.

[0068] Reference Figure 4The lifting device 50 includes a second connecting member 51 and a lifting arm 52. The second connecting member 51 is detachably connected to the fixed structure 10 to adjust the height of the second hook plate 30 relative to the fixed structure 10. The lifting arm 52 is connected to the second connecting member 51 and is detachably connected to the second hook plate 30. The lifting arm 52 is configured to drive the second hook plate 30 to rotate with multiple degrees of freedom under the action of force to adjust the position and angle of the second hook plate 30 relative to the fixed structure 10.

[0069] In a specific application, when the surgeon is freeing the lower blood vessels of an organ, the second hook plate 30 is placed on the top of the organ to be suspended and the position and angle of the organ suspension are adjusted through the lifting arm 52. After the position and angle are determined, the position of the lifting arm 52 is fixed, thereby achieving continuous and stable suspension of the organ to be suspended.

[0070] The lifting arm 52 includes a first joint 521 , a second joint 522 , a first arm body 523 , a second arm body 524 and an adjusting member 525 .

[0071] The first connector 521 is connected to the second connector 51, and the second connector 522 is detachably connected to the second hook plate 30. The first connector 521 and the second connector 522 may be quick-insert connectors to achieve quick installation, removal and replacement.

[0072] One end of the first arm 523 is connected to the ball head of the first joint 521 , and the other end is connected to the adjusting member 525 ; one end of the second arm 524 is connected to the ball head of the second joint 522 , and the other end is connected to the adjusting member 525 .

[0073] The adjusting member 525 is configured to be able to adjust the relative position relationship between it and the first arm body 523, the second arm body 524, the first joint 521 and the second joint 522, so that the first arm body 523 and the second arm body 524 can rotate relative to the adjusting member 525, the first arm body 523 can rotate relative to the first joint 521, the second arm body 524 can rotate relative to the second joint 522, or the rotation of the first arm body 523, the second arm body 524, the first joint 521 and the second joint 522 can be restricted.

[0074] Among them, the adjusting member 525 can be a knob-type structure. When the adjusting member 525 does not restrict the rotation of the first arm body 523, the second arm body 524, the first joint 521 and the second joint 522, the first arm body 523 and the second arm body 524 can rotate relative to the adjusting member 525, the first arm body 523 can rotate relative to the first joint 521, and the second arm body 524 can rotate relative to the second joint 522, thereby realizing multi-degree-of-freedom rotation of the second hook plate 30 to adjust the position and angle of the second hook plate 30 relative to the fixed structure 10. After the first arm 523, the second arm 524, the first joint 521 and the second joint 522 are rotated to the target position, the adjusting piece 525 is screwed in to adjust the position of the rod (not shown) built into the first arm 523 and the second arm 524, so as to restrict the first arm 523, the second arm 524, the first joint 521 and the second joint 522, so as to prevent the first arm 523, the second arm 524, the first joint 521 and the second joint 522 from rotating and maintain the current position of the first arm 523, the second arm 524, the first joint 521 and the second joint 522, so as to realize continuous and stable suspension of the organ to be suspended.

[0075] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A lifting and hanging retractor, characterized in that: It comprises a fixing structure (10), a first hook plate (20), a second hook plate (30), a pulling device (40) and a lifting device (50); The first hook plate (20) is detachably connected to the pulling device (40), and the second hook plate (30) is detachably connected to the lifting device (50); The pulling device (40) is rotatably connected to the fixed structure (10) so as to be able to adjust the orientation of the first hook plate (20) relative to the fixed structure (10), and the pulling device (40) is configured to be able to drive the first hook plate (20) to perform linear motion so as to adjust the position of the first hook plate (20) relative to the fixed structure (10); The lifting and suspending device (50) is detachably arranged on the fixed structure (10) to adjust the height of the second hook plate (30) relative to the fixed structure (10), and the lifting and suspending device (50) is configured to be able to drive the second hook plate (30) to move to adjust the position and angle of the second hook plate (30) relative to the fixed structure (10).

2. The lifting and hanging retractor according to claim 1, characterized in that: The pulling device (40) comprises: A first connecting member (41) is rotatably connected to the fixed structure (10) to adjust the position of the first hook plate (20) relative to the fixed structure (10); a main body (42), connected to the first connecting member (41) and provided with a guide channel (C); and A pushing member (43) is inserted into the guide channel (C) and is detachably connected to the first hook plate (20), and the pushing member (43) is configured to be able to move along the guide channel (C) under the action of force to drive the first hook plate (20) to move linearly.

3. The lifting and hanging retractor according to claim 2, characterized in that: The pushing member (43) is provided with a plurality of first tooth portions (431) arranged at intervals; The pulling device (40) further comprises: a ratchet (44) provided with a plurality of second teeth capable of meshing with the first teeth (431); and a handle (45) connected to the ratchet (44) and capable of driving the ratchet (44) to rotate under the action of a force, so that the pushing member (43) drives the first hook plate (20) to perform a linear motion.

4. The lifting and hanging retractor according to claim 3, characterized in that: The pulling device (40) further comprises a limiting assembly (46), a portion of which is capable of being inserted into or removed from a tooth groove between two of the first tooth portions (431), so that the pushing member (43) drives the first hook plate (20) to perform unidirectional linear motion or bidirectional linear motion.

5. The lifting and hanging retractor according to claim 4, characterized in that: The limiting component (46) comprises: A limiting member (461) is provided with a limiting protrusion (461A); An elastic member (462), two ends of which are respectively in contact with the limiting protrusion (461A) and the main body (42); and A release member (463) is disposed on the main body (42) and connected to the limiting member (461); Wherein, when the release member (463) is subjected to an external force, the limiting protrusion (461A) slips out of the tooth groove between the first tooth portions (431) under the action of the release member (463), and when the external force applied to the release member (463) is cancelled, the limiting protrusion (461A) is inserted into the tooth groove between the first tooth portions (431) under the action of the elastic member (462).

6. The lifting and hanging retractor according to claim 5, characterized in that: The main body (42) is formed with a mounting cavity (D), and the mounting cavity (D) is communicated with the guide channel (C); The limiting assembly (46) further comprises a connecting shaft (464), wherein the connecting shaft (464) and the limiting member (461) are arranged in the mounting cavity (D), and the limiting member (461) is rotatably connected to the main body (42) via the connecting shaft (464); The two ends of the elastic member (462) respectively abut against the limiting protrusion (461A) and the inner wall of the installation cavity (D), and a portion of the release member (463) is located in the installation cavity (D) to be connected to an end of the limiting member (461) away from the limiting protrusion (461A).

7. The lifting and hanging retractor according to claim 1, characterized in that: The lifting and suspending device (50) comprises: a second connecting member (51) detachably connected to the fixed structure (10) to adjust the height of the second hook plate (30) relative to the fixed structure (10); The lifting arm (52) is connected to the second connecting member (51) and is detachably connected to the second hook plate (30), and the lifting arm (52) is configured to drive the second hook plate (30) to rotate with multiple degrees of freedom under the action of force, so as to adjust the position and angle of the second hook plate (30) relative to the fixed structure (10).

8. The lifting and hanging retractor according to claim 7, characterized in that: The lifting arm (52) comprises a first joint (521), a second joint (522), a first arm body (523), a second arm body (524) and an adjusting member (525); The first connector (521) is connected to the second connector (51), and the second connector (522) is detachably connected to the second hook plate (30); One end of the first arm body (523) is connected to the ball head of the first joint (521), and the other end is connected to the adjusting member (525); one end of the second arm body (524) is connected to the ball head of the second joint (522), and the other end is connected to the adjusting member (525); The adjusting member (525) is configured to be able to adjust the relative positional relationship between it and the first arm (523), the second arm (524), the first joint (521) and the second joint (522), so that the first arm (523) and the second arm (524) can rotate relative to the adjusting member (525), the first arm (523) can rotate relative to the first joint (521), the second arm (524) can rotate relative to the second joint (522), or the rotation of the first arm (523), the second arm (524), the first joint (521) and the second joint (522) can be restricted.

9. The lifting and hanging retractor according to any one of claims 1 to 8, characterized in that: The first hook plate (20) is a hook-shaped arc-shaped plate; and / or The second hook plate (30) is a hook-shaped arc-shaped plate.

10. The lifting and hanging retractor according to any one of claims 1 to 8, characterized in that: The fixing structure (10) comprises: A vertical rod (11) connected to the pulling device (40) and the lifting device (50); A first clamping block (12) is provided with a first clamping slot (A) for cooperating with the vertical rod (11); A second card block (13), connected to the first card block (12) and provided with a second card slot (B) for cooperating with an operating table; A first fastener (14) for locking and connecting the first clamping block (12) and the vertical rod (11); The second fastener (15) is used for locking and connecting the second clamping block (13) and the operating bed.

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