Suspension type retractor

Abstract

The utility model 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 utility model belongs to surgical operation instrument technical field, especially, it is a kind of lifting suspension retractor. BACKGROUND

[0002] The surgical abdominal retraction device is a medical device for maintaining the tension and stability of abdominal incision, which can pull open the abdominal wall and fix it in place during surgery to keep the abdominal incision open, provide better visualization conditions for the operating personnel to operate and observe the abdomen, and reduce the risk of damaging surrounding tissues.

[0003] The existing retractors on the market mostly focus only on the pulling of abdominal incision, but in actual abdominal surgery, especially in the field of liver transplantation, the lead surgeon often needs the assistant to hold a large S retractor to artificially suspend the organ for a long time, which not only greatly increases the working intensity of the doctor, but also cannot provide a stable and reliable visual exposure. SUMMARY

[0004] The utility model provides a kind of lifting suspension retractor to solve the technical problem that visual exposure is insufficient, and the working intensity of doctor and his assistant is high.

[0005] The utility model provides a kind of lifting suspension retractor, it includes fixed structure, first hook plate, second hook plate, pulling device and suspension device.The first hook plate is detachably connected to the pulling device, and the second hook plate is detachably connected to the suspension device.The pulling device is rotatably connected to the fixed structure to adjust the orientation of the first hook plate relative to the fixed structure, and the pulling device is arranged to drive the first hook plate to move linearly to adjust the position of the first hook plate relative to the fixed structure.The suspension device is detachably arranged on the fixed structure to adjust the height of the second hook plate relative to the fixed structure, and the suspension device is arranged to drive the second hook plate to move to adjust the position and angle of the second hook plate relative to the fixed structure.

[0006] In the optional scheme of the utility model, 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 passing through the guide channel and detachably connected to the first hook plate, and the pushing member is arranged to move along the guide channel under the action of force to drive the first hook plate to move linearly.

[0007] In optional solutions of the utility model, the pusher is provided with multiple first tooth parts arranged at intervals. The pulling device further comprises: a ratchet wheel provided with multiple second tooth parts capable of engaging with the first tooth parts; and a handle connected with the ratchet wheel and capable of driving the ratchet wheel to rotate under the action of force, so as to drive the pusher to make linear motion with the first hook plate.

[0008] In optional solutions of the utility model, the pulling device further comprises a limiting assembly, part of the limiting assembly being capable of being inserted into or taken out of the tooth slot between the two first tooth parts, so as to drive the pusher to make one-way linear motion or two-way linear motion with the first hook plate.

[0009] In optional solutions of the utility model, the limiting assembly comprises: a limiting part provided with a limiting protrusion; an elastic part, two ends of the elastic part being respectively abutted against the limiting protrusion and the main body; and a releasing part arranged on the main body and connected with the limiting part. When the releasing part is subjected to external force, the limiting protrusion is taken out of the tooth slot between the first tooth parts under the action of the releasing part, and when the external force acting on the releasing part is cancelled, the limiting protrusion is inserted into the tooth slot between the first tooth parts under the action of the elastic part.

[0010] In optional solutions of the utility model, the main body is formed with a mounting cavity, and the mounting cavity is communicated with the guide channel. The limiting assembly further comprises a connecting shaft, the connecting shaft and the limiting part being arranged in the mounting cavity, and the limiting part being rotationally connected with the main body through the connecting shaft. Two ends of the elastic part are respectively abutted against the limiting protrusion and the inner wall of the mounting cavity, and part of the releasing part is located in the mounting cavity to be connected with one end of the limiting part away from the limiting protrusion.

[0011] In optional solutions of the utility model, the lifting device comprises: a second connecting part detachably connected with the fixed structure, so as to adjust the height of the second hook plate relative to the fixed structure; a lifting arm connected with the second connecting part and detachably connected with the second hook plate, and the lifting arm is arranged to be capable of driving the second hook plate to rotate in multiple degrees of freedom under the action of force, so as to adjust the position and angle of the second hook plate relative to the fixed structure.

[0012] In optional schemes of the utility model, the first joint is connected with the second connecting piece, the second joint is detachably connected with the second hook plate, one end of the first arm body is connected with the first joint ball head, the other end is connected with the adjusting piece, one end of the second arm body is connected with the second joint ball head, the other end is connected with the adjusting piece, the adjusting piece is arranged to adjust the relative position relationship between the first arm body, the second arm body, the first joint and the second joint, so that the first arm body and the second arm body can rotate relative to the adjusting piece, 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 is limited.

[0013] In optional schemes of the utility model, the first hook plate is a hook-shaped arc plate, and / or the second hook plate is a hook-shaped arc plate.

[0014] In optional schemes of the utility model, the fixing structure comprises a vertical rod connected with the pulling device and the lifting suspension device, a first clamping block provided with a first clamping groove matched with the vertical rod, a second clamping block connected with the first clamping block and provided with a second clamping groove matched with the operating bed, a first fastener for locking the first clamping block and the vertical rod, and a second fastener for locking the second clamping block and the operating bed.

[0015] In summary, the lifting suspension retractor provided by the utility model has at least the following beneficial effects:

[0016] Based on the lifting suspension retractor, the position of the first hook plate can be adjusted by the pulling device during the operation, and the tissue to be pulled can be pulled to fully open the incision, and the height and position of the second hook plate can be adjusted by the lifting suspension device, and the organ to be lifted can be lifted to the appropriate angle and position, so that the cooperation of the pulling device and the lifting suspension device can provide the doctor with stable and reliable incision opening effect and organ lifting effect, thereby providing the doctor with sufficient visual exposure for the doctor to carry out the operation, thereby not only reducing the working strength of the doctor and his assistants, but also reducing the risk of damage to the surrounding tissues during the operation. And 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 suspension device, different specifications of the first hook plate and the second hook plate can be configured for the lifting suspension retractor, to adapt to different patients, different pulling positions and organs to be lifted, thereby improving the application range of the lifting suspension retractor. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 The structure schematic view of the suspension type retractor provided by the embodiment of the present application is shown in the figure.

[0019] Figure 2 The structure schematic view of the pulling device in the suspension type retractor provided by the embodiment of the present application is shown in the figure.

[0020] Figure 3 The structure schematic view of the limiting assembly inside the main body of the embodiment of the present application is shown in the figure.

[0021] Figure 4 The structure schematic view of the suspension device in the suspension type retractor provided by the embodiment of the present application is shown in the figure.

[0022] Among them, the signs are as follows:

[0023] 10, fixed structure; 11, vertical rod; 12, first clamping block; 13, second clamping block; 14, first fastener; 15, second fastener; A, first clamping groove; B, second clamping groove;

[0024] 20, first hook plate; 21, first connecting part; 22, first hook part;

[0025] 30, second hook plate; 31, second connecting part; 32, second hook part;

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

[0027] 50, suspension device; 51, second connecting piece; 52, suspension arm; 521, first joint; 522, second joint; 523, first arm body; 524, second arm body; 525, adjusting piece;

[0028] 60, fixing piece. DETAILED DESCRIPTION

[0029] To make the above and other features and advantages of this utility model clearer, the utility model will be 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.

[0030] In the description of this utility model, features specified with "first" or "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Features specified with "first" or "second" may explicitly or implicitly include at least one of the specified features. The description of "multiple" generally means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, a connection can be fixed, detachable, or integral; it can be mechanical or electrical; it can be direct or indirect via an intermediate medium; it can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0032] In the description of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions 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 suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] Figure 1 This is a schematic diagram of the structure of the lifting-type retractor provided in an embodiment of the present utility model.

[0034] Reference Figure 1 The lifting and suspension type puller provided by this utility model includes a fixed structure 10, a first hook plate 20, a second hook plate 30, a pulling device 40, and a lifting and suspension device 50.

[0035] The fixed structure 10 serves as a load-bearing component, which on the one hand is used to install and support the traction device 40 and the lifting device 50, and on the other hand is used to install the lifting retractor of this utility model on the side rail of the operating table.

[0036] The first hook plate 20 is detachably connected to the pulling device 40 for contacting the human body tissue to be pulled. 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 so as to be selected and used according to different patients or different pulling positions.

[0037] The second hook plate 30 is detachably connected to the suspension device 50 for contacting the human body organ to be suspended. 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 so as to be selected and used according to different patients or different suspension positions.

[0038] The pulling device 40 is connected to the first hook plate 20 and rotationally connected to the fixed structure 10. The orientation of the pulling device 40 in the circumferential direction of the fixed structure 10 will affect the orientation 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 orientation of the first hook plate 20 can be adjusted by adjusting the orientation 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, so as to adjust the pulling device 40 to a target orientation in the circumferential direction of the fixed structure 10, thereby adjusting the orientation of the first hook plate 20 to be consistent with the orientation 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 move linearly 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 the first hook plate 20 is at a certain distance from the incision, the pulling device 40 can drive the first hook plate 20 to move linearly towards the incision until the first hook plate 20 moves to the position of the incision. When the first hook plate 20 is located 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 move linearly in the opposite direction 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 being pulled into place, thereby providing sufficient visual exposure for the doctor.

[0040] The suspension device 50 is connected with the first hook plate 20 and is detachably arranged on the fixed structure 10, and based on the detachable connection between the suspension 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 suspended can be adjusted by adjusting the mounting height of the suspension device 50 on the fixed structure 10. Moreover, based on the structure of the suspension device 50, the suspension 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 suspended can be suspended and suspended to a suitable angle and position during the operation, thereby providing sufficient visual exposure for the doctor.

[0041] Therefore, based on the suspension type retractor of the utility model, 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 to make the incision be fully retracted, at the same time, the height and position of the second hook plate 30 can be adjusted by the suspension device 50 and the organ to be suspended can be suspended to a suitable angle and position when the doctor performs the organ lower vessel dissociation, thereby based on the cooperation of the pulling device 40 and the suspension device 50, the doctor can be provided with stable and reliable incision retraction effect and organ suspension effect, thereby providing sufficient visual exposure for the doctor to carry out the operation, thereby not only reducing the working strength of the doctor and his assistant, but also reducing the risk of damage to the surrounding tissue during the operation. Moreover, 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 suspension device 50, different specifications and models of the first hook plate 20 and the second hook plate 30 can be configured for the suspension type retractor of the utility model to adapt to different patients, different pulling positions and suspended organs, thereby improving the application range of the suspension type retractor of the utility model.

[0042] Continuing to refer to Figure 1 The fixed structure 10 comprises a vertical rod 11, a first clamping block 12, a second clamping block 13, a first fastener 14 and a second fastener 15.

[0043] The vertical rod 11 is used for mounting the pulling device 40 and the suspension device 50, based on the rotary connection between the pulling device 40 and the vertical rod 11, the pulling device 40 can be mounted to different directions of the vertical rod 11; based on the detachable connection between the suspension device 50 and the vertical rod 11, the suspension device 50 can be mounted to different height positions of the vertical rod 11.

[0044] The first clamping block 12 is provided with a first clamping groove A for cooperating with the vertical rod 11, and after the corresponding part of the vertical rod 11 is accommodated in the first clamping groove A, the first clamping block 12 can be locked and connected with the vertical rod 11 through the first fastener 14. Specifically, when the first fastener 14 is rotated, part of the first fastener 14 can abut against the vertical rod 11 and make the vertical rod 11 abut 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 rod 11; when the first fastener 14 is reversely rotated, the fixation between the first clamping block 12 and the vertical rod 11 can be released.

[0045] The second clamping block 13 is connected with the first clamping block 12 and is provided with a second clamping groove B for cooperating with the operating bed, and after the corresponding part (such as the side rail) of the operating bed is accommodated in the second clamping groove 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 groove B, so as to realize the fixation between the second clamping block 13 and the side rail of the operating bed; when the second fastener 15 is reversely rotated, the fixation between the second clamping block 13 and the side rail of the operating bed can be released.

[0046] Continuing to refer to Figure 1 The first hook plate 20 is a hook-shaped arc plate. Specifically, the first hook plate 20 comprises a first connecting part 21 and a first hook part 22 connected with each other, the first connecting part 21 is detachably connected with the traction device 40, and the first hook part 22 is formed in a hook shape. The first hook plate 20 hooks the tissue to be pulled at the incision position through the first hook part 22 and pulls the tissue to be pulled under the action of the traction device 40, until the incision is pulled open to the target effect and the incision pulling open effect is maintained, so as to provide 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 be in full contact with the tissue to be pulled, thereby improving the stability during pulling.

[0047] Similarly, the second hook plate 30 is a hook-shaped arc plate. Specifically, the second hook plate 30 comprises a second connecting part 31 and a second hook part 32 connected with each other, the second connecting part 31 is detachably connected with the suspension device 50, and the second hook part 32 is formed in a hook shape. The second hook plate 30 is placed on the top of the organ to be suspended through the second hook part 32 and adjusts the position and angle of the suspended organ and maintains the position and angle under the action of the suspension device 50, so as to realize the continuous and stable suspension of the organ, so that the doctor can carry out the operation. Therefore, based on the second hook plate 30 in the shape of a hook-shaped arc plate, the second hook plate 30 can be in full contact with the organ to be suspended, thereby improving the stability during suspension.

[0048] Figure 2 The structure diagram of the traction device in the suspension type retractor provided by the embodiment of the present application, Figure 3The utility model discloses a structure diagram of the limiting assembly inside the main body.

[0049] Referring to Figure 2 The pulling device 40 comprises a first connecting piece 41, a main body 42 and a pushing piece 43.

[0050] The first connecting piece 41 is sleeved on the end of the vertical rod 11 of the fixed structure 10 and is rotationally connected with the vertical rod 11. By rotating the angle of the first connecting piece 41 relative to the vertical rod 11, the orientation 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 orientation, the first connecting piece 41 and the vertical rod 11 can be locked by the fixing piece 60.

[0051] The main body 42 is used for mounting the pushing piece 43, and the main body 42 is connected with the first connecting piece 41 and is provided with a guide channel C. The pushing piece 43 is arranged in the guide channel C and is detachably connected with the first hook plate 20. The pushing piece 43 is arranged to be capable of moving along the guide channel C under the action of force, so as to drive the first hook plate 20 to move linearly.

[0052] Since the first hook plate 20 is connected with the pushing piece 43, under the action of external force, the pushing piece 43 moves linearly along the guide channel C, and at the same time, the first hook plate 20 also moves linearly along with the pushing piece 43. Thus, the linear movement of the first hook plate 20 in the extension direction of the guide channel C is realized, and the accuracy of the pulling process of the pulling device 40 is improved.

[0053] Specifically, the pushing piece 43 can directly move linearly in the extension direction of the guide channel C under the action of external force (such as a pushing force and / or a pulling force). Of course, the pushing piece 43 can also be connected with other movement mechanisms, and the movement of the other movement mechanisms is converted into the linear movement of the pushing piece 43.

[0054] In some embodiments, the pushing piece 43 is in a ratchet structure, and the pushing piece 43 is provided with a plurality of first tooth portions 431 arranged at intervals. The pulling device 40 further comprises a ratchet wheel 44 and a handle 45. The ratchet wheel 44 is provided with a plurality of second tooth portions (not shown) capable of engaging with the first tooth portions 431. The handle 45 is connected with the ratchet wheel 44 and is capable of driving the ratchet wheel 44 to rotate under the action of force, so as to drive the pushing piece 43 to move linearly. Specifically, when the handle 45 is rotated, the ratchet wheel 44 will rotate synchronously with the handle 45. At this time, the pushing piece 43 moves linearly along the guide channel C under the action of the ratchet wheel 44.

[0055] Through the meshing transmission between the ratchet wheel 44 and the pushing piece 43, the rotational movement of the handle 45 can be converted into the linear movement of the pushing piece 43. This transmission mode is simple and stable, and can realize the stable and efficient pulling of the pulling device 40 on the tissue to be pulled.

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

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

[0058] When the part of the limiting assembly 46 is removed from the tooth groove between the two first tooth portions 431 of the pusher 43, the limiting action of the limiting assembly 46 is released, and the pusher 43 can move forward and backward in the extension direction of the guide channel C under the action of the ratchet wheel 44, so that the first hook plate 20 makes 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, unidirectional rapid adjustment can also be achieved by directly pushing the pusher 43 to achieve rapid retraction of the incision; when the limiting action of the limiting assembly 46 is released, bidirectional rapid adjustment can also be achieved by directly pushing and pulling the pusher 43 to achieve rapid adjustment of the position of the first hook plate 20 when the handle 45 is not rotated.

[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, the handle 45 is rotated, based on the limiting action of the limiting assembly 46, the pusher 43 drives the first hook plate 20 to make intermittent unidirectional linear motion, so that the incision is retracted and the field of view is fully exposed, improving the stability of the pulling device 40 during the pulling process. When the handle 45 is stopped, based on the limiting action of the limiting assembly 46, the pusher 43 cannot slide in the opposite direction, and it can stably maintain the retraction effect of the incision. In addition, before the pulling of the pulling device 40, the limiting action of the limiting assembly 46 can be released to enable the pusher 43 to move bidirectionally and flexibly, thereby facilitating the rapid adjustment of the first hook plate 20 to the incision position; and after the pulling of the pulling device 40, the limiting action of the limiting assembly 46 can be released to enable the pusher 43 to move in the opposite direction, thereby releasing the pulled tissue at the incision.

[0061] With reference to Figure 3The limiting assembly 46 comprises a limiting piece 461, an elastic piece 462 and a releasing piece 463, the limiting piece 461 is provided with a limiting protrusion 461A, the elastic piece 462 is abutted to the limiting protrusion 461A and the main body 42 respectively at two ends, and the releasing piece 463 is arranged on the main body 42 and connected with the limiting piece 461.

[0062] The limiting protrusion 461A can be out of the tooth groove between the first tooth portions 431 under the action of the releasing piece 463 when the releasing piece 463 is subjected to an external force, and can be inserted into the tooth groove between the first tooth portions 431 under the action of the elastic piece 462 when the external force acting on the releasing piece 463 is cancelled.

[0063] Specifically, the releasing piece 463 can be configured as a button structure, when the releasing piece 463 is pressed, the limiting protrusion 461A is out of the tooth groove between the first tooth portions 431 and extrudes the elastic piece 462 under the extrusion of the releasing piece 463, at this time, the pusher 43 can move flexibly in two directions; when the releasing piece 463 is released, the limiting protrusion 461A is inserted into the tooth groove between the first tooth portions 431 under the elastic extrusion of the elastic piece 462, at this time, the pusher 43 can move intermittently in one direction.

[0064] 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, the connecting shaft 464 and the limiting piece 461 are arranged in the mounting cavity D, the middle part of the limiting piece 461 is rotationally connected with the main body 42 through the connecting shaft 464, the first end of the limiting piece 461 is provided with the limiting protrusion 461A, and the second end is connected with the releasing piece 463, so that when the first end or the second end of the limiting piece 461 is subjected to a force, the other end can move reversely.

[0065] The two ends of the elastic piece 462 are abutted to the limiting protrusion 461A and the inner wall of the mounting cavity D respectively, and part of the releasing piece 463 is located in the mounting cavity D to be connected with the end of the limiting piece 461 away from the limiting protrusion 461A.

[0066] Since one end of the limiting piece 461 is provided with the limiting protrusion 461A, and the other end is connected with the releasing piece 463, so that when any one end of the limiting piece 461 is subjected to a force, the other end can move reversely, thereby realizing the conversion of the limiting piece 461 inserted into or out of the tooth groove.

[0067] Figure 4 A structure schematic view of the suspension device in the suspension type retractor.

[0068] Referring to Figure 4The lifting device 50 comprises a second connecting member 51 and a lifting arm 52. The second connecting member 51 is detachably connected with 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 with the second connecting member 51 and detachably connected with the second hook plate 30. The lifting arm 52 is arranged to drive the second hook plate 30 to rotate in 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 main surgeon is performing the dissection of the lower blood vessels of an organ, the second hook plate 30 is placed on the top of the organ to be lifted and the position and angle of the organ lifting are adjusted by the lifting arm 52. After the position and angle are determined, the position of the lifting arm 52 is fixed, thereby achieving the continuous and stable lifting of the organ to be lifted.

[0070] 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.

[0071] The first joint 521 is connected with the second connecting member 51, and the second joint 522 is detachably connected with the second hook plate 30. The first joint 521 and the second joint 522 can be quick plug joints to achieve quick installation, disassembly and replacement.

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

[0073] The adjusting member 525 is arranged to adjust the relative position relationship between 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 is limited.

[0074] Wherein, the adjusting member 525 can be a knob structure, when the adjusting member 525 does not limit 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, the second arm body 524 can rotate relative to the second joint 522, thereby realizing the 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. While the rotation of the first arm body 523, the second arm body 524, the first joint 521 and the second joint 522 is to the target position, the position of the rod (not shown) built in the first arm body 523 and the second arm body 524 is adjusted by screwing the adjusting member 525, the limitation of the first arm body 523, the second arm body 524, the first joint 521 and the second joint 522 is realized to prevent the rotation of the first arm body 523, the second arm body 524, the first joint 521 and the second joint 522 and keep the current position of the first arm body 523, the second arm body 524, the first joint 521 and the second joint 522, so as to realize the continuous and stable suspension of the suspended organ.

[0075] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A suspension retractor, characterized in that, The device comprises a fixed structure (10), a first hook plate (20), a second hook plate (30), a pulling device (40) and a suspension 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 suspension device (50); The pulling device (40) is rotationally connected to the fixed structure (10) to adjust the orientation of the first hook plate (20) relative to the fixed structure (10), and the pulling device (40) is configured to drive the first hook plate (20) to move linearly to adjust the position of the first hook plate (20) relative to the fixed structure (10); The suspension 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 suspension device (50) is configured 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 suspension retractor of claim 1, wherein, The pulling device (40) comprises: a first connecting member (41) rotationally connected to the fixed structure (10) to adjust the orientation 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) arranged in the guide channel (C) and detachably connected to the first hook plate (20), and the pushing member (43) is configured to move along the guide channel (C) under the action of force to drive the first hook plate (20) to move linearly.

3. The suspension-type retractor according to claim 2, wherein the pushing member (43) is provided with a plurality of first teeth (431) arranged at intervals; the pulling device (40) further comprises a ratchet (44) provided with a plurality of second teeth capable of engaging 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 force, so that the pushing member (43) drives the first hook plate (20) to move linearly.

4. The suspension retractor of claim 3, wherein, The pulling device (40) further comprises a limiting assembly (46), part of which can be inserted into or withdrawn from the tooth slot between two of the first teeth (431) to enable the pushing member (43) to drive the first hook plate (20) to move linearly in one direction or in both directions.

5. The suspension retractor of claim 4, wherein, The limiting assembly (46) comprises: a limiting member (461) provided with a limiting protrusion (461A); a resilient member (462) having two ends abutting against the limiting protrusion (461A) and the main body (42), respectively; and a releasing member (463) arranged on the main body (42) and connected to the limiting member (461). The limiting protrusion (461A) is out of the tooth groove between the first tooth portions (431) under the action of the release member (463) when the release member (463) is subjected to external force, and is inserted into the tooth groove between the first tooth portions (431) under the action of the elastic member (462) when the external force acting on the release member (463) is cancelled.

6. The suspension retractor according to claim 5, characterized in that, The main body (42) is formed with a mounting cavity (D) which communicates with the guide channel (C); The limiting assembly (46) further comprises a connecting shaft (464) which is arranged in the mounting cavity (D) together with the limiting member (461), and the limiting member (461) is rotatably connected to the main body (42) through the connecting shaft (464); Both ends of the elastic member (462) abut against the limiting protrusion (461A) and the inner wall of the mounting cavity (D) respectively, and part of the release member (463) is arranged in the mounting cavity (D) to be connected to one end of the limiting member (461) away from the limiting protrusion (461A).

7. The suspension retractor of claim 1, wherein, The suspension device (50) comprises: A second connecting member (51) which is detachably connected to the fixed structure (10) to adjust the height of the second hook plate (30) relative to the fixed structure (10); A suspension arm (52) which is connected to the second connecting member (51) and detachably connected to the second hook plate (30), and the suspension arm (52) is arranged to be capable of driving the second hook plate (30) to rotate in 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).

8. The suspension retractor according to claim 7, characterized in that, The suspension 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 joint (521) is connected to the second connecting member (51), and the second joint (522) is detachably connected to the second hook plate (30); One end of the first arm body (523) is connected to the first joint (521) in the form of a ball head, and the other end is connected to the adjusting member (525); one end of the second arm body (524) is connected to the second joint (522) in the form of a ball head, and the other end is connected to the adjusting member (525); The adjusting member (525) is arranged to adjust the relative position relationship between the adjusting member (525) 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) is limited.

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

10. The suspension retractor of any of claims 1-8, wherein, The fixing structure (10) comprises: a vertical rod (11) connected with the pulling device (40) and the suspension device (50); a first clamping block (12) provided with a first clamping groove (A) for cooperating with the vertical rod (11); a second clamping block (13) connected with the first clamping block (12) and provided with a second clamping groove (B) for cooperating with a surgical bed; a first fastener (14) for locking and connecting the first clamping block (12) and the vertical rod (11); a second fastener (15) for locking and connecting the second clamping block (13) and the surgical bed.

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