Organ retractor for surgery

Abstract

The present invention discloses an organ traction and exposure device for surgery, comprising a lifting part, a grasping forceps and a first control part, wherein the lifting part is used to lift the organ upward; the grasping forceps is fixedly connected to the lifting part, and the grasping forceps is used to embed the organ to fix the lifting part on the organ, thereby preventing the lifting part from shifting when the organ is lifted; the first control part is connected to the grasping forceps to control the engagement or release of the grasping forceps. The present invention fixes the lifting part on the liver by arranging the grasping forceps to clamp the liver when the lifting part is lifted, thereby preventing the lifting part from shifting during the lifting process, so that the exposed part will not change during the operation, effectively solving the technical problem in the prior art that the lifting instrument is easily shifted when the liver is lifted using the shielding exposure method, thereby resulting in an unstable exposed surgical field of view, and achieving the beneficial effects of a stable and clear surgical field of view and high surgical safety.

Description

Technical Field

[0001] The present application relates to the field of medical tools, and in particular to an organ retractor and exposure device for surgery. Background Art

[0002] Exposure of the surgical field of view is very important for the successful implementation of laparoscopic surgery, especially in operations on the stomach, spleen, and pancreas. The obstruction of the left liver lobe often makes it difficult to expose the stomach, pancreas, spleen and other organs, which affects the progress of the operation and increases the difficulty of the operation. Therefore, liver traction exposure is very important. Good liver traction can fully expose the surgical field of view in the upper abdomen, increase the surgical operation space, and thus ensure the smooth progress of the operation.

[0003] The suspension exposure method uses slings, tape, thick wires, etc. to suspend irrelevant tissues in the body to expose target organs, tissues, and structures. However, the exposure range of this method is limited, and each exposure requires re-suspension. It cannot be adjusted in time according to the specific surgical progress, and it is easy to cause abdominal wall damage or bleeding during the suspension process.

[0004] To this end, the blocking exposure method is often used clinically to solve the above problems. The blocking exposure method uses fan-shaped retractors and other lifting instruments to pull or block the liver to achieve the purpose of exposing the subhepatic structures.

[0005] However, the inventors of the present application discovered that the above-mentioned prior art has at least the following technical problems in the process of implementing the technical solutions in the embodiments of the present application:

[0006] In the prior art, when the liver is lifted using the shielding exposure method, the lifting device is easily displaced, resulting in an unstable exposed surgical field. Summary of the invention

[0007] The embodiments of the present application provide a surgical organ traction and exposure device to solve the technical problem in the prior art that when the liver is lifted using the shielding exposure method, the lifting device is easily displaced, resulting in an unstable exposed surgical field of view.

[0008] In order to solve the above problems, the embodiment of the present application provides a surgical organ retraction and exposure device, the retraction and exposure device comprising:

[0009] The lifting part is used to lift the organ upwards;

[0010] A grasping forceps, fixedly connected to the lifting part, and used to embed the organ to fix the lifting part on the organ, thereby preventing the lifting part from shifting when lifting the organ;

[0011] The first control part is connected to the grasping forceps to control the grasping forceps to engage or release.

[0012] Furthermore, the lifting part can shrink or expand, and the pulling exposure device also includes a second control part, which is connected to the lifting part to control the lifting part to shrink when entering and exiting the human body and expand when lifting the organ.

[0013] Furthermore, the lifting portion is ring-shaped.

[0014] Furthermore, the second control unit includes:

[0015] A sleeve, wherein the rear end of the lifting portion is fixedly arranged on the end surface of the front end of the sleeve;

[0016] An operating rod coaxially passes through the sleeve and can move forward and backward along the axial direction of the sleeve, and the front end of the lifting portion is fixedly arranged on the end surface of the front end of the operating rod;

[0017] The operating rod moves forward and backward along the axial direction of the sleeve, driving the two fixed points at the front end and the rear end of the lifting part to move away from or approach each other, thereby causing the lifting part to contract or expand.

[0018] Further, the grasping forceps are arranged on the end surface of the front end of the operating rod, and the grasping forceps include:

[0019] a first clamping flap, the rear end of which is fixed to the end surface of the front end of the operating rod;

[0020] A second clamping flap, wherein the rear end of the second clamping flap is hinged on the end surface of the front end of the operating rod, and the second clamping flap is connected to the first control part, and the first control part drives the second clamping flap to rotate, thereby forcing the front end of the second clamping flap to approach or move away from the front end of the first clamping flap;

[0021] A first spring is sandwiched between the first clamping petal and the second clamping petal, and two ends of the first spring are respectively connected to the inner sides of the first clamping petal and the second clamping petal;

[0022] The second clamp has a first position and a second position during the rotation process. When the second clamp is in the first position, the front end of the second clamp is close to the front end of the first clamp, and the grasping forceps are engaged; when the second clamp is in the second position, the front end of the second clamp is away from the front end of the first clamp, and the grasping forceps are released.

[0023] Furthermore, the first control unit includes:

[0024] A traction rope, the front end of which is fixedly connected to the second clamping petal, and the rear end of which is inserted into the operating rod;

[0025] A handle is coaxially sleeved outside the sleeve, and two windows are symmetrically opened on the handle. The handle has a cavity inside, and the windows penetrate the handle in the radial direction;

[0026] A button is rotatably arranged on the side wall of the window so that the button can pass through the window into or out of the cavity, and a first connecting rod is arranged on the inner side of the button;

[0027] A second connecting rod penetrates the operating rod in a radial direction of the operating rod, and a rear end of the traction rope is fixedly connected to the middle of the second connecting rod;

[0028] A third connecting rod, wherein one end of the two third connecting rods is respectively hinged to the two ends of the first connecting rod, and the other ends of the two third connecting rods are respectively hinged to the first connecting rod located on the same side;

[0029] The button has a third position and a fourth position during the rotation process. When the button is pressed into the handle, the button drives the traction rope to move backward through the first connecting rod, the second connecting rod and the third connecting rod, and the button is located at the third position, and the first clamping flap and the second clamping flap are engaged; when the button is released, the traction rope moves forward and is driven to reset to the fourth position through the second connecting rod, the third connecting rod and the first connecting rod, and the first clamping flap and the second clamping flap are released.

[0030] Furthermore, the pulling and exposing device further comprises a locking device, which is used to lock the occlusal state of the grasping forceps, and the locking device comprises:

[0031] A slide groove is provided on the handle along the axial direction of the handle and is located at the rear end of the window;

[0032] A push button, slidably disposed in the slide groove along the axial direction of the handle;

[0033] a second spring, wherein the front end of the second spring is fixedly connected to the rear end of the push button, and the rear end of the second spring is fixed to the rear side surface of the slide groove;

[0034] The push button has a fifth position and a sixth position during the sliding process in the slide groove. When the push button is in the fifth position, the spring is in a free state, and the push button slides forward to above the window and stops the button in the third position from popping out downward, thereby forcing the grasping forceps to be locked in an engaged state; when the push button is in the sixth position, the second spring is in a compressed state, and the front end of the push button abuts against the rear end of the button to stop the push button from sliding forward.

[0035] Further, the operating rod includes a first rod body at the front end and a second rod body at the rear end, the rear end of the first rod body is bent to one side to form a tail rod perpendicular to the first rod body; the pulling exposure device also includes an angle adjustment device, the angle adjustment device adjusts the inclination angle of the lifting part and the grasping forceps, and the angle adjustment device includes:

[0036] A first cone wheel, fixedly sleeved on the tail rod;

[0037] A second cone wheel is fixedly sleeved on the front end of the second rod body and vertically meshed with the first cone wheel;

[0038] The second rod body drives the second cone wheel to rotate, and the second cone wheel drives the first rod body to rotate relative to the second rod body through the first cone wheel. The first rod body tilts toward one side of the second rod body, thereby adjusting the tilt angle of the lifting part and the grasping forceps.

[0039] Furthermore, the pulling exposure device also includes a tensioning rod for ensuring effective engagement of the first cone wheel and the second cone wheel, one end of the tensioning rod is hinged to the tail rod, and the other end is fixedly connected to the second rod body, thereby tightening the first cone wheel on the second cone wheel to prevent the first cone wheel from disengaging from the second cone wheel when the first rod body rotates relative to the second rod body.

[0040] Furthermore, the rear end of the operating rod passes through the sleeve and the handle, and is connected to a rotating head which is convenient for hand-held operation and can prevent the rear end of the operating rod from sliding into the sleeve and the handle.

[0041] The above one or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

[0042] (1) In the embodiment of the present application, a lifting part is provided to lift the liver upward to expose the target organ under the liver, so as to fully expose the surgical field of view, and a grasping forceps is provided to clamp the liver when the lifting part is lifted, so as to fix the lifting part on the liver to prevent the lifting part from shifting during the lifting process, so that during the upper abdominal surgery, the lifting part can lift stably and the exposed part will not change during the operation, which effectively solves the technical problem in the prior art that the lifting instrument is easily shifted when lifting the liver using the shielding exposure method, thereby causing the exposed surgical field of view to be unstable, and achieves the beneficial effects of stable and clear surgical field of view and high surgical safety;

[0043] (2) The embodiment of the present application sets the lifting part into a ring shape, and the hollow ring design can avoid local blood congestion and facilitate observation of blood supply, effectively solving the technical problem of local blood congestion easily caused when lifting the liver using the shielding exposure method in the prior art, and achieving the beneficial effects of small side effects and high surgical safety;

[0044] (3) The embodiment of the present application is provided with an angle adjustment device capable of adjusting the tilt angle of the lifting part and the grasping forceps. The tilt angle of the lifting part and the grasping forceps is adjusted according to the specific use environment. This not only makes the traction exposure device applicable to exposures of different angles and multiple parts, but also increases the surgical operation space, thereby avoiding mutual interference between instruments during the operation. This effectively solves the technical problem in the prior art that when the liver is lifted by the shielding exposure method, the straight rod type is used, which affects the surgical operation area during the traction process, thereby ensuring the smooth progress of the operation.

[0045] (4) In the embodiment of the present application, the lifting part is configured to be a retractable or expandable structure. When the lifting part is retracted and the grasping forceps are engaged, the structure becomes compact and the whole becomes slender, which is convenient for inserting or removing the trocar (trocar) of the laparoscope. When the lifting part is expanded, the supporting surface becomes larger, which can better lift the liver upward, thereby obtaining a larger and clearer exposure range.

[0046] (5) In the embodiment of the present application, a locking device is provided to lock the occlusal state of the grasping forceps, thereby freeing both hands and avoiding long-term manual lifting operation, which is convenient and practical;

[0047] (6) The embodiment of the present application integrates an operating rod for controlling the contraction or expansion of the lifting portion, an operating rod for controlling the angle adjustment device, a button for controlling the engagement or release of the grasping forceps, and a push button for controlling the locking or unlocking of the locking device on the same handle, thereby facilitating one-handed operation by surgeons during laparoscopic surgery.

[0048] In summary, the traction exposure device described in the embodiment of the present application has the beneficial effects of more complete exposure of the surgical field, clearer surgical field and higher surgical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 The structure of an organ retractor and exposure device for surgery in an embodiment of the present invention is shown in FIG. Figure 1 ;

[0050] Figure 2 The structure of an organ retractor and exposure device for surgery in an embodiment of the present invention is shown in FIG. Figure 2 ;

[0051] Figure 3 It is a front view of an organ retracting and exposing device for surgery in an embodiment of the present invention;

[0052] Figure 4 It is a side view of an organ retractor and exposure device for surgery in an embodiment of the present invention (in a straight rod state);

[0053] Figure 5 A top view of an organ retractor and exposure device for surgery in an embodiment of the present invention (in a straight rod state);

[0054] Figure 6 It is a cross-sectional view of an organ retracting and exposing device for surgery in an embodiment of the present invention;

[0055] Figure 7 for Figure 6 A magnified view of the structure at center;

[0056] Figure 8 Schematic diagram of the structure of the grasping forceps in an embodiment of the present invention (released state);

[0057] Fig. 9 It is a structural schematic diagram of the angle adjustment device in an embodiment of the present invention;

[0058] Fig.10 A side view of an organ retractor and exposure device for surgery in an embodiment of the present invention (in a bent rod state);

[0059] Fig.11 1. A top view of an organ retractor and exposure device for surgery in an embodiment of the present invention (in a bent rod state).

[0060] Explanation of the reference numerals: lifting part 100, grasping forceps 200, first clamping flap 210, second clamping flap 220, connecting seat 230, first spring 240, first control part 300, handle 310, window 320, button 330, second rotating shaft 340, first connecting rod 350, traction rope 360, second connecting rod 370, third connecting rod 380, sleeve 410, operating rod 420, rotating head 430, first rod body 421, second rod body 422, tail rod 423, slide groove 510, push button 520, second spring 530, angle adjustment device 600, first cone wheel 610, second cone wheel 620, tensioning rod 630. DETAILED DESCRIPTION

[0061] The embodiments of the present application provide a surgical organ traction and exposure device to solve the technical problem in the prior art that when the liver is lifted using the shielding exposure method, the lifting device is easily displaced, resulting in an unstable exposed surgical field of view.

[0062] In order to solve the above technical problems, the overall idea of ​​the technical solution provided by this application is as follows:

[0063] Firstly, a lifting part is provided to lift the liver upward to expose the target organ under the liver, so as to fully expose the surgical field of view, and a grasping forceps is provided to clamp the liver when the lifting part is lifted, so as to fix the lifting part on the liver to prevent the lifting part from shifting during the lifting process, so that during the upper abdominal surgery, the lifting part can lift stably, and the exposed part will not change during the operation, which effectively solves the technical problem in the prior art that the lifting instrument is easy to shift when lifting the liver using the shielding exposure method, thereby causing the exposed surgical field of view to be unstable, and achieves the beneficial effects of stable and clear surgical field of view and high surgical safety;

[0064] Secondly, by setting the lifting part in a ring shape, the hollow ring design can avoid local blood congestion and facilitate observation of blood supply, effectively solving the technical problem of easily causing local blood congestion when lifting the liver using the shielding exposure method in the prior art, and achieving the beneficial effects of small side effects and high surgical safety;

[0065] Thirdly, by providing an angle adjustment device capable of adjusting the inclination angle of the lifting part and the grasping forceps, the inclination angle of the lifting part and the grasping forceps can be adjusted according to the specific use environment, so that the traction exposure device can be applied to exposures of different angles and multiple parts, and the surgical operation space can be increased, thereby avoiding mutual interference between instruments during the operation, effectively solving the technical problem in the prior art that the traction process will affect the surgical operation area due to the straight rod lifting when the liver is lifted using the shielding exposure method, thereby ensuring the smooth progress of the operation;

[0066] In addition, by setting the lifting part to a retractable or expandable structure, when the lifting part is retracted and the grasping forceps are engaged, the structure is compact and the whole becomes slender, which is convenient for inserting or exiting the trocar of the laparoscope; when the lifting part is expanded, the supporting surface becomes larger, and the liver can be better lifted upward, thereby obtaining a larger and clearer exposure range;

[0067] In addition, by setting a locking device to lock the occlusal state of the grasping forceps, both hands can be freed, avoiding long-term manual lifting operation, which is convenient and practical;

[0068] Finally, by integrating the operating rod for controlling the contraction or expansion of the lifting part, the operating rod for controlling the angle adjustment device, the button for controlling the engagement or release of the grasping forceps, and the push button for controlling the locking or unlocking of the locking device on the same handle, it is convenient for surgeons to operate with one hand during laparoscopic surgery.

[0069] In summary, the traction exposure device described in the embodiment of the present application has the beneficial effects of more complete exposure of the surgical field, clearer surgical field and higher surgical safety.

[0070] The technical solution of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0071] For the sake of convenience, it is defined in the embodiment of the present application that when operating the traction exposure device, the end facing the doctor (user) is the rear end, that is, the end where the handle 310 is located, and the end facing the patient is the front end, that is, the end where the grasping forceps 200 is located.

[0072] Figure 1 The overall structure of an organ retractor and exposure device for surgery in the embodiment of the present application is shown in FIG. Figure 1 ,like Figure 1 As shown, the pulling and exposing device includes a lifting part 100, a grasping forceps 200, and a first control part 300, wherein the lifting part 100 is used to lift the liver upward to expose the target organ (such as the stomach, pancreas, spleen, etc.) under the liver, and the grasping forceps 200 are fixedly connected to the lifting part 100, and the grasping forceps 200 are used to embed the liver to fix the lifting part 100 on the liver, and the lifting part 100 obtains a fixed point, so that the lifting part 100 will not shift during the lifting process. The first control part 300 controls the grasping forceps 200 to bite or release. When the grasping forceps 200 bite, it can embed the liver. When the lifting is completed, the grasping forceps 200 is released.

[0073] Therefore, the traction exposure device described in the embodiment of the present application is provided with a lifting part 100 to lift the liver upward to expose the target organ under the liver, so as to fully expose the surgical field of view, and by providing a grasping forceps 200 to clamp the liver when the lifting part is lifted, the lifting part 100 is fixed on the liver to avoid displacement of the lifting part 100 during the lifting process, so that during the upper abdominal surgical operation, the lifting part 100 can lift stably and the exposed part will not change during the operation. The technical problem in the prior art that the lifting instrument is easily displaced when the liver is lifted by the blocking exposure method, thereby resulting in an unstable exposed surgical field of view is effectively solved, and the beneficial effects of a stable and clear surgical field of view and high surgical safety are achieved.

[0074] In one embodiment of the present application, the lifting portion 100 can be contracted or expanded, and the traction exposure device also includes a second control portion, and the second control portion is connected to the lifting portion 100 to control the contraction or expansion of the lifting portion 100. When the lifting portion 100 is contracted and the grasping forceps 200 are engaged, the structure is compact and the whole becomes slender, which is convenient for inserting or exiting the laparoscope trocar; when the lifting portion 100 is expanded, the supporting surface becomes larger, and the liver can be better lifted upward, thereby obtaining a larger and clearer exposure range.

[0075] In one embodiment of the present application, Figures 1 to 5 As shown, the lifting portion 100 is ring-shaped, which is convenient for contraction and expansion, and the hollow ring design can avoid local congestion and facilitate observation of blood supply.

[0076] Furthermore, the supporting portion 100 is elliptical when expanded, and the major axis of the ellipse extends in the front-to-back direction, so that the supporting portion 100 is as slender as possible when contracted to facilitate smooth passage of the laparoscope trocar, and has a larger supporting area when expanded.

[0077] In addition, the supporting portion 100 can shrink and expand, and to have a supporting effect, the material needs to have a certain elasticity (variability and recoverable deformation) and a certain rigidity, and a plastic fiber belt can be used, such as: PP plastic (polypropylene), PE fiber (polyethylene) or carbon fiber.

[0078] In one embodiment of the present application, Figure 2 As shown, the second control part includes a sleeve 410 and an operating rod 420 that can move forward and backward along the axial direction of the sleeve 410. The length of the operating rod 420 is longer than the sleeve 410. The front end of the lifting part 100 is fixedly arranged on the end surface of the front end of the operating rod 420, and the rear end of the lifting part 100 is fixedly arranged on the end surface of the front end of the sleeve 410. When in use, the rear end of the operating rod 420 is held and driven to move forward and backward along the axial direction of the sleeve 410, so as to drive the front and rear fixed points on the lifting part 100 (two points connected to the sleeve 410 and the operating rod 420 respectively) to move away from or close to each other, thereby realizing the contraction or expansion of the lifting part 100.

[0079] Specifically, when the upper front and rear fixing points of the lifting portion 100 are moved away from each other, the annular lifting portion 100 becomes thinner and longer, and when the upper front and rear fixing points of the lifting portion 100 are moved closer to each other, the annular lifting portion 100 becomes wider and shorter.

[0080] In one embodiment of the present application, Figures 2~5As shown, the grasping forceps 200 are arranged on the end surface of the front end of the operating rod 420, so as to achieve a fixed connection with the lifting part 100.

[0081] like Figure 5 As shown, the grasping forceps 200 includes a first clamping flap 210 and a second clamping flap 220 that are arranged opposite to each other, and a first spring 240 that is arranged between the first clamping flap 210 and the second clamping flap 220, and both ends of the first spring 240 are respectively connected to the inner sides of the first clamping flap 210 and the second clamping flap 220. The first spring 240 ensures the relative distance between the first clamping flap 210 and the second clamping flap 220 when they are not controlled.

[0082] The rear end of the first clamping flap 210 is fixed to the end surface of the front end of the operating rod 420, and the rear end of the second clamping flap 220 is hinged to the end surface of the front end of the operating rod 420. Specifically, a hinge seat is fixedly provided on the end surface of the front end of the operating rod 420, and a first rotating shaft is provided on the hinge seat. The rear end of the second clamping flap 220 passes through the first rotating shaft and can rotate around the first rotating shaft, thereby realizing the hinged connection between the second clamping flap 220 and the operating rod 420.

[0083] The second clamping flap 220 rotates under the control of the first control unit 300, so that the front end of the second clamping flap 220 is close to or away from the front end of the first clamping flap 210; the second clamping flap 220 has a first position and a second position during the rotation process. When the second clamping flap 220 is located at the first position, the front end of the second clamping flap 220 is close to the front end of the first clamping flap 210, and the grasping forceps 200 is occluded and in a occluded state; when the second clamping flap 220 is located at the second position, the front end of the second clamping flap 220 is away from the front end of the first clamping flap 210, and the grasping forceps 200 is released and in a released state, thereby realizing the operational control of clamping and releasing the liver.

[0084] In one embodiment of the present application, the first control unit 300 includes a traction rope 360 ​​coaxially penetrating the operating rod 420, a connecting seat 230 is provided on the side of the second clamping flap 220 close to the first clamping flap 210, and a connecting hole is opened on the connecting seat 230. The front end of the traction rope 360 ​​is fastened to the connecting hole, and the rear end of the traction rope 360 ​​is inserted into the operating rod 420. The traction rope has a certain elasticity.

[0085] The first control unit 300 further includes a handle 310 coaxially sleeved outside the sleeve 410, two windows 320 symmetrically opened on the handle, and two buttons 330 respectively arranged in the windows 320. The handle 310 is hollow inside and has a cavity. The window 320 penetrates along the radial direction of the handle and communicates with the cavity, and the two windows 320 are symmetrically arranged about the central axis of the handle 310. The front end of the button 330 is axially connected to the side wall of the window 320. Specifically, a second rotating shaft 340 is arranged on the side wall of the window 320, and the front end of the button 330 is rotatably arranged on the second rotating shaft 340, so that the button 330 can rotate left and right, so that the button 330 can pass through the window 320 to enter or pass through the cavity, and a hard first connecting rod 350 is arranged on the inner side of the button 330.

[0086] The first control part also includes two hard second connecting rods 370 and one third connecting rod 380, the second connecting rod 370 penetrates the operating rod 420 along the radial direction of the operating rod 420, and the rear end of the traction rope 360 ​​is fastened to the middle of the second connecting rod 370; one end of the two third connecting rods 380 is respectively hinged to the two ends of the second connecting rod 370, and the other ends of the two third connecting rods 380 are respectively hinged to the corresponding first connecting rods 350 on the button 330.

[0087] Pressing the button 330 along the radial direction of the handle 310 can drive the button 330 to rotate left and right. The button 330 has a third position and a fourth position during the left and right rotation. When the button 330 is pressed into the handle 310, the button 330 is located at the third position. At this time, the button 330 drives the traction rope 360 ​​to move backward through the first connecting rod 350, the second connecting rod and the third connecting rod, and the first clamping flap 210 and the second clamping flap 220 are engaged; releasing the button 330, the traction rope 360 ​​moves forward, and drives the button 330 to rotate outward of the handle 310 through the second connecting rod 370, the third connecting rod 380 and the first connecting rod 350, the button 330 is reset and located at the fourth position, and the first clamping flap 210 and the second clamping flap 220 are released, thereby controlling the engagement or release of the grasping forceps 200.

[0088] In order to free both hands, it is necessary to lock the occlusal state of the grasping forceps 200. For this purpose, the pulling exposure device described in an embodiment of the present application is also provided with a locking device.

[0089] like Figure 7As shown, the locking device includes a slide groove 510 opened on the handle 310 along the axial direction of the handle 310, and the slide groove 510 is located at the rear end of one of the windows 320. A push button 520 is provided in the slide groove 510, and the push button 520 can slide along the axial direction of the handle 310. The rear end of the push button 520 is fixed to the rear side groove wall of the slide groove 510 by a second spring 530.

[0090] The push button 520 has a fifth position and a sixth position during its movement in the slide groove 510. When the push button 520 is in the fifth position, the second spring 530 is in a free state, and the push button 520 slides forward to above the window 320 to stop and press the button 330 in the third position in the window 320 to prevent the button 330 from popping out, thereby forcing the grasping forceps 200 to be locked in the occlusal state; when the push button 520 is in the sixth position, the second spring 530 is in a compressed state, and the rear end of the button 330 resists the push button 520 to prevent the push button 520 from sliding forward.

[0091] In order to improve the practicality of the traction exposure device, the traction exposure device described in an embodiment of the present application is also provided with an angle adjustment device 600, and the angle adjustment device 600 can synchronously adjust the inclination angle of the lifting part 100 and the grasping forceps 200, so as to adjust the inclination angle of the lifting part 100 and the grasping forceps 200 according to the specific use environment, which not only makes the traction exposure device suitable for exposure of different angles and multiple parts, but also increases the surgical operation space, thereby avoiding mutual interference between instruments during the operation, and effectively solves the technical problem of using the blocking exposure method in the prior art to lift the liver due to the straight rod lifting, which affects the surgical operation area during the traction process, thereby ensuring the smooth progress of the operation.

[0092] like Figures 9-11 As shown, the operating rod 420 is set to a disconnected state, that is, the operating rod 420 includes a first rod body 421 at the front end and a second rod body 422 at the rear end, the rear end of the first rod body 421 is bent to form a tail rod 423 perpendicular to the first rod body 421, a first cone wheel 610 is fixedly provided on the tail rod 423, and a second cone wheel 620 is provided on the front end of the second rod body 422, and the first cone wheel 610 and the second cone wheel 620 are vertically meshed. When in use, the second rod body 422 is driven to rotate at the rear end of the second rod body 422, the second cone wheel 620 rotates, and drives the first cone wheel 610 to rotate, and the first rod body 421 rotates relative to the second rod body 422 and tilts to one side of the second rod body 422, and the tilt angle of the lifting part 100 and the grasping forceps 200 changes.

[0093] When the angle between the first rod body 421 and the second rod body 422 is 180°, the operating rod 420 is in a straight rod state, and when the angle between the first rod body 421 and the second rod body 422 is not equal to 180°, the operating rod 420 is in a bent rod state. In this embodiment, the diameter of the first rod body 421 is smaller than that of the second rod body 422.

[0094] In order to ensure that the first cone wheel 610 and the second cone wheel 620 are always effectively engaged, a tensioning rod 630 is provided between the side surface of the tail rod 423 and the side surface of the front end of the second rod body 422. One end of the tensioning rod 630 is hinged to the tail rod 423 (thereby allowing the first rod body 421 to rotate relative to the second rod body 422), and the other end is fixedly connected to the second rod body 422, so that the first cone wheel 610 is tightened on the second cone wheel 620 to prevent the first cone wheel 610 from disengaging from the second cone wheel 620 when the first rod body 421 rotates relative to the second rod body 422, thereby ensuring the effectiveness of the pulling exposure device.

[0095] Further, such as Figures 1 to 4 As shown, the rear end of the operating rod 420 passes through the sleeve 410 and the handle 310, and the rear end of the operating rod 420 is provided with a rotating head 430 that is convenient for holding and can prevent the rear end of the operating rod 420 from sliding into the sleeve 410 and the handle 310. Holding the rotating head 430 to operate the operating rod 420 (moving or rotating) is more convenient and comfortable, and the control is more precise. In this embodiment, the rotating head 430 is in the shape of an oblate cylinder.

[0096] In addition, the rotating head 430 (or operating rod 420) for controlling the contraction or expansion of the lifting part 100, the rotating head 430 (or operating rod 420) for controlling the angle adjustment device, the button 330 for controlling the bite or release of the grasping forceps 200, and the push button 520 for controlling the locking or unlocking of the locking device are all integrated on the same handle 310, which is convenient for surgeons to operate with one hand during laparoscopic surgery, and is easy to use.

[0097] During the operation, under laparoscopy, the operation process of the retractor exposure device is as follows:

[0098] (1) The grasping forceps 200 are in a occlusal state, the lifting device 100 is in a retracted state, and the pulling and exposing device is introduced from the outside into the surgical field of view through the trocar of the laparoscope;

[0099] (2) Push the push button 520 backward, the button 330 pops out, and the grasping forceps 200 is in a loose state. After determining the fixed point, press the button 330, and the grasping forceps 200 clamps the liver in a occluding state. The push button 520 automatically moves forward and stops the button 330 from popping out, thereby locking the grasping forceps 200 in the occluding state.

[0100] (3) Pull the operating rod 420 backward, and the lifting device 100 opens to achieve lifting exposure;

[0101] (4) Rotate the operating rod 420 to achieve multi-angle adjustment of the lifting device 100 until it is adjusted to the optimal position to avoid affecting the operating range of other surgical instruments;

[0102] (5) After the operation, the operating rod 420 is rotated in sequence until the operating rod 420 is reset and straightened, the operating rod 420 is pushed forward until the lifting device 100 is contracted, the push button 520 is pushed backward to make the grasping forceps 200 release the liver, and then the button 330 is pressed to make the grasping forceps 200 in a biting state, and then the operation area is withdrawn, and finally the traction exposure device is removed from the laparoscope trocar.

[0103] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A surgical organ retractor and exposure device, characterized in that: The pulling exposure device comprises: The lifting part is used to lift the organ upward; A grasping forceps, fixedly connected to the lifting part, and used to embed the organ to fix the lifting part on the organ, thereby preventing the lifting part from shifting when lifting the organ; A first control part connected to the grasping forceps to control the grasping forceps to engage or disengage; The lifting part can be contracted or expanded, and the pulling exposure device further includes a second control part, which is connected to the lifting part to control the lifting part to contract when entering and exiting the human body and to expand when lifting the organ; The second control unit includes: A sleeve, wherein the rear end of the lifting portion is fixedly arranged on the end surface of the front end of the sleeve; An operating rod coaxially passes through the sleeve and can move forward and backward along the axial direction of the sleeve, and the front end of the lifting portion is fixedly arranged on the end surface of the front end of the operating rod; The operating rod moves forward and backward along the axial direction of the sleeve, driving the two fixed points at the front and rear ends of the lifting part to move away from or closer to each other, thereby causing the lifting part to contract or expand; The grasping forceps are arranged on the end surface of the front end of the operating rod, and the grasping forceps include: a first clamping flap, the rear end of which is fixed to the end surface of the front end of the operating rod; A second clamping flap, wherein the rear end of the second clamping flap is hinged on the end surface of the front end of the operating rod, and the second clamping flap is connected to the first control part, and the first control part drives the second clamping flap to rotate, thereby forcing the front end of the second clamping flap to approach or move away from the front end of the first clamping flap; A first spring is sandwiched between the first clamping petal and the second clamping petal, and two ends of the first spring are respectively connected to the inner sides of the first clamping petal and the second clamping petal; The second clamp has a first position and a second position during the rotation process. When the second clamp is at the first position, the front end of the second clamp is close to the front end of the first clamp, and the grasping forceps are engaged; when the second clamp is at the second position, the front end of the second clamp is away from the front end of the first clamp, and the grasping forceps are released. The first control unit includes: A traction rope, the front end of which is fixedly connected to the second clamping petal, and the rear end of which is inserted into the operating rod; A handle is coaxially sleeved outside the sleeve, and two windows are symmetrically opened on the handle. The handle has a cavity inside, and the windows penetrate the handle in the radial direction; A button is rotatably arranged on the side wall of the window so that the button can pass through the window into or out of the cavity, and a first connecting rod is arranged on the inner side of the button; A second connecting rod penetrates the operating rod in a radial direction of the operating rod, and a rear end of the traction rope is fixedly connected to the middle of the second connecting rod; A third connecting rod, wherein one end of the two third connecting rods is respectively hinged to the two ends of the first connecting rod, and the other ends of the two third connecting rods are respectively hinged to the first connecting rod located on the same side; The button has a third position and a fourth position during the rotation process. When the button is pressed into the handle, the button drives the traction rope to move backward through the first connecting rod, the second connecting rod and the third connecting rod, and the button is located at the third position, and the first clamping flap and the second clamping flap are engaged; when the button is released, the traction rope moves forward and is driven to reset to the fourth position through the second connecting rod, the third connecting rod and the first connecting rod, and the first clamping flap and the second clamping flap are released.

2. The surgical organ retractor and exposure device according to claim 1, characterized in that: The lifting portion is ring-shaped.

3. The surgical organ retractor and exposure device according to claim 2, characterized in that: The pulling and exposing device further comprises a locking device, which is used to lock the occlusal state of the grasping forceps, and the locking device comprises: A slide groove is provided on the handle along the axial direction of the handle and is located at the rear end of the window; A push button, slidably disposed in the slide groove along the axial direction of the handle; a second spring, wherein the front end of the second spring is fixedly connected to the rear end of the push button, and the rear end of the second spring is fixed to the rear side surface of the slide groove; The push button has a fifth position and a sixth position during the sliding process in the slide groove. When the push button is in the fifth position, the spring is in a free state, and the push button slides forward to above the window and stops the button in the third position from popping out downward, thereby forcing the grasping forceps to be locked in an engaged state; when the push button is in the sixth position, the second spring is in a compressed state, and the front end of the push button abuts against the rear end of the button to stop the push button from sliding forward.

4. The surgical organ retractor and exposure device according to claim 2, characterized in that: The operating rod includes a first rod body at the front end and a second rod body at the rear end, the rear end of the first rod body is bent to one side to form a tail rod perpendicular to the first rod body; the pulling exposure device also includes an angle adjustment device, the angle adjustment device adjusts the inclination angle of the lifting part and the grasping forceps, and the angle adjustment device includes: A first cone wheel, fixedly sleeved on the tail rod; A second cone wheel is fixedly sleeved on the front end of the second rod body and vertically meshed with the first cone wheel; The second rod body drives the second cone wheel to rotate, and the second cone wheel drives the first rod body to rotate relative to the second rod body through the first cone wheel. The first rod body tilts toward one side of the second rod body, thereby adjusting the tilt angle of the lifting part and the grasping forceps.

5. The surgical organ retractor and exposure device according to claim 4, characterized in that: The pulling exposure device also includes a tensioning rod for ensuring effective engagement of the first cone wheel and the second cone wheel, one end of the tensioning rod is hinged to the tail rod, and the other end is fixedly connected to the second rod body, thereby tightening the first cone wheel on the second cone wheel to prevent the first cone wheel from disengaging from the second cone wheel when the first rod body rotates relative to the second rod body.

6. The surgical organ retractor and exposure device according to any one of claims 1 to 5, characterized in that: The rear end of the operating rod passes through the sleeve and the handle, and is connected with a rotating head which is convenient for hand-held operation and can prevent the rear end of the operating rod from sliding into the sleeve and the handle.

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