CN112022284A - A execute and press from both sides auxiliary device for laparoscopic surgery - Google Patents

Abstract

The invention discloses a clamping auxiliary device for endoscopic surgery, which comprises a forceps head assembly and an operation assembly, wherein the opening and closing of the forceps head assembly are controlled by the operation assembly, the operation assembly comprises a clamping part and an operation part, the clamping part is used for continuously keeping clamping and staying at a preset position after being clamped and positioned at the preset position, the operation part is used for being detached from the clamping part after the clamping part stably clamps the preset position to make an operation space, and the clamping part and the operation part are connected and linked through a linkage structure; the clamping part is provided with a supporting component which is used for supporting the tissue organ by controlling to unfold so as to assist the exposure of the operation visual field; the clamping part is connected with the supporting component and the operating part controls the clamping part to drive the supporting component to move so as to realize the unfolding or folding of the supporting component, or the operating part is connected with the supporting component and controls the supporting component to unfold or fold, or the supporting component is provided with a control device for controlling the supporting component to unfold or fold. In the whole operation process, the interference is less, and the operation efficiency is high.

Description

Clip application aids for laparoscopic surgery

technical field

The invention relates to the technical field of medical devices, in particular, to a clip-applying auxiliary device for supporting/tracting in-vivo tissues/organs under a laparoscope to assist in revealing a surgical field.

Background technique

Compared with open surgery, laparoscopic surgery has the advantages of less trauma, less risk of incision infection and non-union, faster postoperative recovery, and smaller and hidden scars after healing, and is widely used in the field of surgery.

Due to the small incision in endoscopic surgery, the exposure of the surgical site cannot be assisted by various retractors as in open surgery, and can only rely on changing the patient's position or using forceps to clamp or push or pull tissues/organs from the puncture channel.

In order to solve the problem of exposing the operating site of laparoscopic surgery, Chinese invention patent CN 107997792 A discloses a single-hole laparoscopic liver-pipping device, which includes an operating rod, a plurality of segments connected to one end of the operating rod, and a device arranged on the other side of the operating rod. Control assembly and handle at one end. When in use, the handle of the device is held, and the fan blades are controlled to open, close, and bend through the control component to achieve traction on the liver and the like to assist in completing the operation. Obviously, although the above-mentioned device also solves the problem of exposure of the surgical site to a certain extent, it requires the operator or assistant to continue to operate when the traction is realized, and there will still be mutual interference between multiple people/instruments, and the operation will be limited. operational space, etc.

Therefore, in the process of endoscopic surgery, multiple people are usually required to assist, and there is mutual interference among multiple people, which results in a waste of manpower; in addition, the clamping instruments occupy the surgical operation space, which will also block the surgical site to a certain extent. surgical interference.

SUMMARY OF THE INVENTION

The present invention provides a clip-applying auxiliary device for laparoscopic surgery, so as to solve the problem that the existing single-hole laparoscopic liver peeling device needs to be operated by multiple people and will interfere with each other; the device itself will also affect the operation site. Technical issues that create occlusion and constitute surgical interference.

The present invention provides a clip-applying auxiliary device for endoscopic surgery, which is used for supporting and/or pulling tissues and organs to assist in revealing a surgical field, including a forceps head assembly and an operation assembly, and the opening of the forceps head assembly is controlled by the operation assembly. In combination, the operating assembly includes a clamping portion for continuing to hold the clamping and staying at the predetermined position after the clamping is positioned at the predetermined position, and for removing the clamping portion from the clamping portion to allow operation after the clamping portion stably clamps the predetermined position In the operation part of the space, the clamping part and the operation part are connected and linked by a linkage structure; the clamping part is provided with a support component for supporting the tissues and organs through control and assisting in revealing the surgical field; the clamping part is connected to the support The operation part controls the clamping part to drive the support assembly to move to realize the expansion or collapse of the support assembly, or the operation part connects and controls the expansion or collapse of the support assembly, or the support assembly is provided with a control device for controlling the expansion or collapse of the support assembly .

Further, the pliers head assembly includes a first pliers head and a second pliers head, the clamping part includes a first operating rod and a second operating rod, the first pliers head is respectively hinged with the second pliers head and the first operating rod, the second The pliers head is fixedly connected with the second operating rod, the first operating rod and the second operating rod are arranged in parallel, and the first operating rod moves axially relative to the second operating rod to push the first pliers head to rotate around the second pliers head to The engagement or opening of the first forceps head and the second forceps head is achieved.

Further, the operation part includes a third operation lever, a fourth operation lever, a first handle and a second handle, the first handle is hingedly connected with the second handle and the third operation lever, and the fourth operation lever is fixedly connected with the second handle , the first handle rotates relative to the second handle and drives the third operating rod to move axially, and the third operating rod drives the first operating rod to move axially, thereby realizing the engagement or opening of the first clamp head and the second clamp head.

Further, the first handle and the second handle are also provided with a buckle for positioning the relative movement between the first handle and the second handle and a control touch for increasing the relative movement between the first handle and the second handle. Support shrapnel.

Further, the linkage structure includes a first hook provided on the rod end of the first operating rod, a second hook provided on the rod end of the second operating rod, and a first hook provided on the rod end of the third operating rod along the radial direction of the third operating rod. a card slot, a second card slot opened at the rod end of the fourth operating rod along the radial direction of the fourth operating rod, and a lock hinge hinged on the second operating rod, the first operating rod passes between the second operating rod and the lock The through hole is connected and assembled in the first slot of the third operating rod through the first hook connection, so that the first operating rod and the third operating rod are assembled coaxially, and the second operating rod is assembled on the third operating rod through the second hook connection. In the second slot of the four operating rods, the second operating rod and the fourth operating rod are assembled coaxially. The first card slot, the second hook and the second card slot are fastened in the inner cavity of the lock, thereby realizing the linkage connection between the clamping part and the operating part.

Further, a positioning rack and a pawl are respectively provided between the first operating rod and the second operating rod, and the pawl is connected to the lock catch and is interlocked with the lock catch; the lock catch is rotated and fastened to the clamping part and the operating part. The connection part makes the pawl out of the positioning rack, and then the operation part and the clamping part are linked; The relative movement between the first operating rod and the second operating rod facilitates the removal of the operating portion from the clamping portion without affecting the engagement of the first jaw head and the second jaw head.

Further, the support assembly includes a support rod, a transmission rod, a guide groove and a toggle rod, the guide groove is opened on the second operating rod, the ends of the plurality of support rods intersect and the intersecting parts are jointly hinged and assembled on the second operating rod to support the second operating rod. The free ends of the rods are arranged in the direction of the clamp head assembly, the plurality of transmission rods are arranged in a one-to-one correspondence with the plurality of support rods, the first ends of the transmission rods are hingedly connected with the side walls of the corresponding support rods, and the second ends of the plurality of transmission rods They are hingedly connected to each other and combined to form a hinged slider. The hinged slider is slidably connected in the guide groove. The hinged slider is moved from the initial position of the guide groove to the end position by the lever to move the support rod outwards through the transmission rod. The support rod supports the tissues and organs, and the hinged slider is moved from the end position of the guide groove to the initial position through the toggle rod, so that the support rod is pulled inward by the transmission rod.

Further, the support rod is covered with a flexible film, and the flexible film is provided with a crease that is folded and folded with the support rod.

Further, the support assembly includes a support rod, a transmission rod, a guide groove and a toggle rod, the guide groove is opened on the second operating rod, the ends of the plurality of support rods intersect and the intersecting parts are hingedly assembled on the second operating rod, and the support rod The free ends of the transmission rods are arranged in the direction of the operation part, and the plurality of transmission rods are arranged in a one-to-one correspondence with the plurality of support rods. Connect and combine to form a hinged slider, the hinged slider is slidably connected in the guide groove, and the hinged slider is moved from the initial position of the guide groove to the end position by the lever to push the support rod outward through the transmission rod to realize the support rod. For the support of the tissues and organs, the hinged slider is moved from the end position of the guide groove to the initial position by the toggle lever, so that the support rod is pulled inward by the transmission rod to be folded inward.

Further, the second operating rod is also provided with a guide sleeve, the first operating rod is penetrated in the guide sleeve, and the axial movement of the first operating rod relative to the second operating rod is guided by the guide sleeve; and/or the first operating rod is guided by the guide sleeve. A guide sleeve is also provided on the four operating rods, and the third operating rod is penetrated in the guide sleeve, and the axial movement of the third operating rod relative to the fourth operating rod is guided by the guide sleeve.

The present invention has the following beneficial effects:

The auxiliary device for applying clips for endoscopic surgery of the present invention controls the opening and closing operations of the forceps head assembly through the operating assembly, thereby realizing the clamping and fixing of the lesion site; the operating assembly is composed of a clamping part and an operating part combined, When the clamping part stably clamps the lesion part, the linkage structure can be disassembled to remove the operation part from the clamping part, so as to prevent the exposed operation part from blocking the puncture channel opened on the body surface, and at the same time allow the operation outside the body Operation space to prevent the auxiliary device from interfering with the operation of other surgical instruments outside the patient's body; after removing the operation part, the support assembly can be operated and controlled to expand the support assembly and support the tissues and organs around the puncture channel, so that the puncture channel Keep it unobstructed, and then reveal the predetermined position, which is convenient for subsequent surgical operations. The whole structure is simple, and a single person can use one device to fix the clips, remove and take away the operation part, support the tissues and organs, etc. and expose the surgical site, so as to facilitate the subsequent laparoscopic surgery on the exposed surgical site. and other work; in the whole operation process, the interference is less, and the operation efficiency is high.

There are at least the following three ways to control the unfolding or folding of the support assembly: first, the control end of the support assembly is connected with the moving part of the clamping part, and the support is triggered during the movement process of clamping or loosening the clamping part controlled by the operating part. The control end of the assembly to realize the expansion or collapse of the support assembly. The second type is that the control end of the operation part is connected to the control end of the support assembly, and the expansion or retraction of the support assembly is directly controlled by the operation part. Thirdly, a control device is separately provided on the control end of the support assembly, and the expansion or retraction of the support assembly can be controlled at any time through the control device. Different structural connection relationships and control methods can be used as required to realize the unfolding or retracting of the support assembly, and the control process of the unfolding or retracting of the support assembly, the opening and closing process of the pliers assembly, and the device of the operating part and the clamping part. The premise is that the processes do not interfere and hinder each other.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the drawings.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

FIG. 1 is a schematic structural diagram of a clip-applying auxiliary device for laparoscopic surgery according to a preferred embodiment of the present invention;

Fig. 2 is the structural schematic diagram of the disassembled state of the linkage structure of the preferred embodiment of the present invention;

Fig. 3 is the structural schematic diagram of the linkage structure combined state of the preferred embodiment of the present invention;

4 is a schematic structural diagram of a fan-shaped support assembly in an unfolded state according to a preferred embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a link-type support assembly in an unfolded state according to a preferred embodiment of the present invention.

illustration:

1. The pliers head assembly; 101, the first pliers head; 102, the second pliers head; 2. The operating assembly; 201, the clamping part; 2011, the first operating rod; 2012, the second operating rod; 202, the operating part; 2021, the third operating lever; 2022, the fourth operating lever; 2023, the first handle; 2024, the second handle; 2025, the buckle; 2026, the supporting shrapnel; 3, the linkage structure; 301, the first hook; 302, The second hook; 303, the first slot; 304, the second slot; 305, the lock; 4, the support assembly; 401, the support rod; 402, the transmission rod; 403, the guide groove; 404, the lever; 405 , hinged slider; 406, flexible film; 5, positioning rack; 6, pawl.

Detailed ways

The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

Fig. 1 is a schematic structural diagram of a clip application auxiliary device for endoscopic surgery according to a preferred embodiment of the present invention; Fig. 2 is a structural schematic diagram of a disassembled state of the linkage structure of the preferred embodiment of the present invention; Fig. 3 is a linkage structure of the preferred embodiment of the present invention. Figure 4 is a schematic structural diagram of the fan-shaped support assembly of the preferred embodiment of the present invention in the unfolded state; Figure 5 is the structural schematic diagram of the link-type support assembly of the preferred embodiment of the present invention.

As shown in FIG. 1 , the clip application auxiliary device for endoscopic surgery in this embodiment is used for supporting and/or pulling tissues and organs to assist in revealing the surgical field, including a forceps head assembly 1 and an operation assembly 2. The assembly 2 controls the opening and closing of the pliers assembly 1, and the operation assembly 2 includes a clamping part 201 for continuing to hold the clamping and staying at the predetermined position after the clamping is positioned at a predetermined position; The operation part 202 is removed from the clamping part 201 to make the operation space after the position, and the clamping part 201 and the operation part 202 are connected and linked by the linkage structure 3; The support assembly 4 that supports the tissues and organs and assists in revealing the surgical field; the clamping part 201 is connected to the supporting assembly 4, and the operation part 202 controls the clamping part 201 to drive the supporting assembly 4 to move to realize the expansion or retraction of the supporting assembly 4, or the operation part 202 is connected to and controls the support assembly 4 to expand or collapse, or the support assembly 4 is provided with a control device for controlling the support assembly 4 to expand or collapse. The clip application auxiliary device of the present invention for endoscopic surgery controls the opening and closing operation of the forceps head assembly 1 through the operation assembly 2, thereby realizing the clamping and fixing of the lesion; the operation assembly 2 consists of a clamping part 201 and an operating part 202 When the clamping part 201 stably clamps the lesion part, the operation part 202 can be removed from the clamping part 201 by disassembling the linkage structure 3, so as to prevent the exposed operation part 202 from blocking the opening of the body surface. The puncture channel is provided, and at the same time, the surgical operation space outside the body is freed, so as to prevent the auxiliary device for clipping from interfering with the operation of other surgical instruments outside the patient's body; after removing the operation part 202, the support assembly 4 can be operated and controlled to expand the support assembly 4 It supports the tissues and organs around the puncture channel, keeps the puncture channel unobstructed, and exposes the predetermined position, which is convenient for subsequent surgical operations. The whole structure is simple, and a single person can use one device to fix the clip, remove and take away the operation part 202, support tissues and organs, etc., and expose the surgical site, thereby facilitating the subsequent endoscopy of the exposed surgical site. Operation and other work; during the whole operation process, there is less interference and high operation efficiency. There are at least the following three ways to control the expansion or contraction of the support assembly 4: First, the control end of the support assembly 4 is connected with the moving part of the clamping part 201, and the operation part 202 controls the clamping or loosening of the clamping part 201. During the movement, the control end of the support assembly 4 is triggered to realize the expansion or retraction of the support assembly 4; secondly, a control device is separately provided on the control end of the support assembly 4, and the expansion or contraction of the support assembly 4 can be controlled at any time through the control device. The third type is that the control end of the operation part 202 is connected to the control end of the support assembly 4, and the expansion or closing of the support assembly 4 is directly controlled by the operation part 202; different structural connection relationships and control methods can be used as required to achieve The expansion or retraction of the support assembly 4 is premised on the premise that the control process of the expansion or retraction of the support assembly 4 and the opening and closing process of the forceps assembly 1 and the installation process of the operating part 202 and the clamping part 201 do not interfere and hinder each other. The predetermined position refers to the position preset before the endoscopic surgery; when the auxiliary device for applying clips is working, the forceps head assembly 1 passes through the puncture channel and is clamped on the predetermined tissue (such as the peritoneum) in the predetermined position, and the forceps head assembly 1 communicates with the peritoneum. The clamping connection of the predetermined tissue provides a supporting point for the inner end of the support assembly 4; another supporting point of the clip application auxiliary device is the rear end of the clamping portion 201, which is supported on the body surface of the puncture channel. Optionally, there are two ways to control the unfolding and folding of the support assembly 4. The first is that the unfolding or folding of the support assembly 4 is also controlled by the operation part 202. After the connection, the folded state of the support assembly 4 is at the same time as the jaws are opened; the second is that the support assembly 4 has a separate control device, the operation part 202 is removed from the clamping part 201, and the support assembly 4 is controlled by the control device. When the operation is completed, the support assembly 4 is controlled to be folded by the control device, and the operation part 202 is assembled to the clamping part 201 .

As shown in FIG. 1 , in this embodiment, the pliers head assembly 1 includes a first pliers head 101 and a second pliers head 102 , the clamping part 201 includes a first operating rod 2011 and a second operating rod 2012 , and the first pliers head 101 Articulated with the second clamp head 102 and the first operation rod 2011 respectively, the second clamp head 102 is fixedly connected with the second operation rod 2012, the first operation rod 2011 and the second operation rod 2012 are arranged in parallel, and the first operation rod 2011 is opposite The second operating rod 2012 is moved axially to push the first jaw 101 to rotate around the second jaw 102 to realize the engagement or opening of the first jaw 101 and the second jaw 102 . The second jaw 102 is hinged with the end of the first jaw 101 , the first operating rod 2011 is hinged on the first jaw 101 away from the end, and the two hinge points are displaced relative to the axial direction of the first operating rod 2011 The arrangement is such that when the first operating rod 2011 moves axially, it can push the first forceps head 101 to rotate around the second forceps head 102 without posing a movement obstruction. Optionally, the first forceps head 101 and the second forceps head 102 are matched with each other by means of cooperating jaw teeth.

As shown in FIG. 1 , in this embodiment, the operation part 202 includes a third operation lever 2021 , a fourth operation lever 2022 , a first handle 2023 and a second handle 2024 , and the first handle 2023 is connected to the second handle 2024 and the third handle respectively. The operation lever 2021 is hingedly connected, the fourth operation lever 2022 is fixedly connected with the second handle 2024, the first handle 2023 rotates relative to the second handle 2024 and drives the third operation lever 2021 to move axially, and the third operation lever 2021 drives the first operation The rod 2011 is axially linked, thereby realizing the engagement or opening of the first forceps head 101 and the second forceps head 102 . The third operating rod 2021 is assembled on the first operating rod 2011 and is axially linked with the first operating rod 2011 . The fourth operating rod 2022 is assembled to the second operating rod 2012 and axially linked with the second operating rod 2012 .

As shown in FIG. 1 , in this embodiment, a snap 2025 for positioning relative movement between the first handle 2023 and the second handle 2024 is further provided between the first handle 2023 and the second handle 2024 and for adding a first handle The relative movement between the handle 2023 and the second handle 2024 is a supporting elastic piece 2026 that controls the tactile sensation. Optionally, the snap 2025 is fixed on the second handle 2024 and extends toward the first handle 2023 , and the snap 2025 on the second handle 2024 is engaged with the fixing teeth on the first handle 2023 to achieve positioning and anti-reverse. By applying force to the snap 2025 to disengage the snap 2025 from the fixing teeth, the positioning between the first handle 2023 and the second handle 2024 is released. Optionally, the first handle 2023 and/or the second handle 2024 is provided with a loop handle that is looped over the fingers or a convex handle that is in contact with fingers to facilitate application of force. Optionally, a waist-shaped hole and a pin shaft are used between the first handle 2023 and the third operating rod 2021 to realize hinged connection, and the pin shaft slides in the waist-shaped hole during the rotation of the first handle 2023 to reduce the application to the third operating rod. The radial force on the operating rod 2021 reduces the radial force and the radial deformation probability of the third operating rod 2021 .

As shown in FIG. 1 , FIG. 2 and FIG. 3 , in this embodiment, the linkage structure 3 includes a first hook 301 provided on the rod end of the first operating rod 2011 , and a second hook 302 provided on the rod end of the second operating rod 2012 , along the radial direction of the third operating rod 2021, the first slot 303 opened on the rod end of the third operating rod 2021, the second groove 304 opened on the rod end of the fourth operating rod 2022 along the radial direction of the fourth operating rod 2022, and the hinge On the latch 305 on the second operating lever 2012 , the first operating lever 2011 passes through the through hole between the second operating lever 2012 and the latch 305 and is connected to the second operating lever 2021 through the first hook 301 . In a slot 303, the first lever 2011 and the third lever 2021 are assembled coaxially, and the second lever 2012 is connected and assembled in the second slot 304 of the fourth lever 2022 through the second hook 302, so that the The second operation lever 2012 and the fourth operation lever 2022 are assembled coaxially, and the lock catch 305 is rotated and fastened to the connection portion of the clamping portion 201 and the operation portion 202 to connect the first hook 301 and the first locking slot 303 after assembly. And the second hook 302 and the second slot 304 are locked in the inner cavity of the lock 305 , so as to realize the linkage connection between the clamping part 201 and the operation part 202 . Optionally, the linkage structure 3 includes a first hook 301 provided on the rod end of the third operating rod 2021, a second hook 302 provided on the rod end of the second operating rod 2012, A first slot 303 at the rod end of the operating rod 2011 , a second slot 304 opened on the rod end of the fourth operating rod 2022 along the radial direction of the fourth operating rod 2022 , and hinged on the second operating rod 2012 or the fourth operating rod 2022 305 of the lock. Optionally, the linkage structure 3 includes a first hook 301 provided on the rod end of the third operating rod 2021, a second hook 302 provided on the rod end of the fourth operating rod 2022, A first slot 303 at the rod end of the operating rod 2011 , a second slot 304 opened on the rod end of the second operating rod 2012 along the radial direction of the second operating rod 2012 , and hinged on the second operating rod 2012 or the fourth operating rod 2022 305 of the lock. Optionally, the linkage structure 3 includes a first hook 301 provided on the rod end of the first operating rod 2011, a second hook 302 provided on the rod end of the fourth operating rod 2022, The first slot 303 at the rod end of the three operating rods 2021 , the second slot 304 opened on the rod end of the second operating rod 2012 along the radial direction of the second operating rod 2012 , and hinged on the second operating rod 2012 or the fourth operating rod 2022 305 of the lock. Optionally, the lock catch 305 can also be hinged on the first operating rod 2011 or the third operating rod 2021 . Optionally, the first hook 301 of the rod end of the first operating rod 2011 and the first groove 303 of the rod end of the third operating rod 2021 can be exchanged with each other; the second hook 302 of the rod end of the second operating rod 2012 and the fourth operating rod The second slot 304 of the rod end of 2022 can also be exchanged with each other. Optionally, the lock catch 305 can be hinged on the first operating rod 2011, and the second operating rod 2012 is correspondingly inserted between the lock catch 305 and the first operating rod 2011; or the lock catch 305 can be hinged on the second operating rod 2012, correspondingly the first operating rod 2011 is inserted between the lock catch 305 and the second operating rod 2012; or the lock catch 305 can be hinged on the third operating rod 2021, correspondingly the fourth operating rod 2022 is penetrated through the lock between the buckle 305 and the third operating rod 2021 ; or the locking buckle 305 can be hinged on the fourth operating rod 2022 , and correspondingly, the third operating rod 2021 is inserted between the locking buckle 305 and the fourth operating rod 2022 .

As shown in FIG. 1 , in this embodiment, a positioning rack 5 and a pawl 6 are respectively provided between the first operating rod 2011 and the second operating rod 2012 , and the pawl 6 is connected to the lock catch 305 and is connected with the lock catch 305 linkage. Optionally, the positioning rack 5 is provided on the first operating rod 2011 , and the pawl 6 is provided on the second operating rod 2012 . Optionally, the positioning rack 5 is provided on the second operating rod 2012 , and the pawl 6 is provided on the first operating rod 2011 . The latch 305 is rotatably engaged with the connection portion between the clamping portion 201 and the operating portion 202 , and the pawl 6 is disengaged from the positioning rack 5 , so that the operating portion 202 and the clamping portion 201 are linked together. The locking buckle 305 rotates away from the connection between the clamping part 201 and the operating part 202 and makes the pawl 6 abut on the positioning rack 5, thereby locking the relative movement between the first operating rod 2011 and the second operating rod 2012, In order to facilitate the removal of the operating portion 202 from the clamping portion 201 without affecting the engagement of the first forceps head 101 and the second forceps head 102 . Optionally, the linkage between the pawl 6 and the lock catch 305 can be adopted: the pawl 6 is connected with the lock catch 305 as a whole; or the pawl 6 and the lock catch 305 are engaged and connected; or the lock catch 305 moves towards the direction of the pawl 6 and pushes The pawl 6 moves and moves away from the pawl 6 and pulls the pawl 6 to move.

As shown in FIG. 1 and FIG. 4 , in this embodiment, the support assembly 4 includes a support rod 401 , a transmission rod 402 , a guide groove 403 and a toggle rod 404 , the guide groove 403 is opened on the second operating rod 2012 , and a plurality of support rods The ends of 401 intersect and the intersecting parts are hingedly assembled on the second operating rod 2012. The free end of the support rod 401 is arranged in the direction of the clamp head assembly 1. The first end of the rod 402 is hingedly connected with the side wall of the corresponding support rod 401, and the second ends of the plurality of transmission rods 402 are hingedly connected to each other and combined to form a hinged slider 405, and the hinged slider 405 is slidably connected in the guide groove 403, The hinged slider 405 is moved from the initial position of the guide groove 403 to the end position by the toggle lever 404 to push the support rod 401 to expand outward through the transmission rod 402 to realize the support of the tissues and organs by the support rod 401 . The hinged slider 405 is moved from the end position of the guide groove 403 to the initial position to pull the support rod 401 through the transmission rod 402 to be retracted inward.

As shown in FIG. 1 and FIG. 4 , in this embodiment, the support rod 401 is covered with a flexible film 406 , and the flexible film 406 is provided with a crease that is folded and folded with the support rod 401 . All the support rods 401 are in elastic contact with the tissues and organs through the flexible film 406, so as to avoid rigid contact damage to the tissues and organs during the contact process. Creases are provided on the flexible film 406 to limit the direction of movement of the flexible film 406 for unfolding and retracting. The guide grooves 403 are arranged vertically. The guide grooves 403 include a first V groove and a second V groove. The ends are connected to form a closed double V closed groove, as shown in Figure 4 and Figure 5. When in use, the forceps head assembly 1 of the clip application aid is in a clamped state and extends into the puncture channel. At this time, the support assembly 4 is in a retracted state. In the predetermined organization, the first operating lever 2011 moves forward with the first operating lever 2011 over the hinged slider 405 and then moves backwards to push the hinged slider 405 to move from the corner of the first V-groove and enter the second V-groove. The groove corner position of the V groove (that is, from the initial position to the end position), and then the transmission rod 402 pulls the support rod 401 to expand; after the operation is completed, the operation part 202 controls the forceps assembly 1 to open and release the predetermined tissue and then withdraw a certain distance In the clamped state, the first operating lever 2011 makes the lever 404 move forward with the first operating lever 2011 to cross the hinged slider 405 and then move backwards to push the hinged slider 405 from the second V-groove. Move and enter the lower straight groove section of the first V groove, and the support rod 401 is pushed to close by the elastic force of the flexible film 406 or the surrounding tissue cells, so as to pull the hinged slider 405 to enter along the lower straight groove section of the first V groove The groove angle of the first V-groove (that is, from the end position to the initial position) facilitates the removal of the entire clip application aid from the puncture channel.

As shown in FIG. 5 , in this embodiment, the support assembly 4 includes a support rod 401 , a transmission rod 402 , a guide groove 403 and a toggle rod 404 , the guide groove 403 is opened on the second operating rod 2012 , and the ends of the plurality of support rods 401 are The intersecting and intersecting parts are jointly hinged and assembled on the second operating rod 2012, the free end of the supporting rod 401 is arranged towards the direction of the operating part 202, the plurality of transmission rods 402 and the plurality of supporting rods 401 are arranged in a one-to-one correspondence, and the first The ends are hingedly connected with the free ends of the corresponding support rods 401 , and the second ends of the plurality of transmission rods 402 are hingedly connected with each other and combined to form a hinged slider 405 . The movable hinged slider 405 moves from the initial position of the guide groove 403 to the end position to push the support rod 401 to expand outward through the transmission rod 402 to realize the support of the tissue and organs by the support rod 401. The end position of the guide groove 403 is moved to the initial position so that the support rod 401 is pulled by the transmission rod 402 to be retracted inward. The fixed hinge and the living hinge of the connecting rod are fully utilized, so as to realize the outward unfolding movement and the inward folding movement of the support rod 401 .

In this embodiment, the second operating rod 2012 is further provided with a guide sleeve, the first operating rod 2011 is passed through the guide sleeve, and the axial movement of the first operating rod 2011 relative to the second operating rod 2012 is carried out through the guide sleeve. For guidance, the radial movement of the first operating rod 2011 relative to the second operating rod 2012 is restricted by the guide sleeve, while the first operating rod 2011 is guided to only move axially; and/or the fourth operating rod 2022 is also provided with a guide sleeve , the third operating rod 2021 is passed through the guide sleeve, the axial movement of the third operating rod 2021 relative to the fourth operating rod 2022 is guided by the guide sleeve, and the third operating rod 2021 is restricted relative to the fourth operating rod by the guide sleeve. The radial movement of the rod 2022, while guiding the first operating rod 2011 to do only axial movement.

When implemented, a device for supporting/tracting tissues/organs such as the liver during endoscopic surgery to assist in exposing the surgical field (a clip-applying device for endoscopic surgery) is provided, which is convenient to operate and requires no additional intervention after the device is placed. In this way, continuous support for the target tissue can be achieved, and the handle portion (operating portion 202 ) of the device can be freely disassembled to reduce interference with other surgical instruments.

As shown in FIG. 1 , the auxiliary device for applying clips for laparoscopic surgery includes a forceps head assembly 1, a locking structure (positioning rack 5 and pawl 6), an operating assembly 2, a gripping part (a first handle 2023 and a second The handle 2024 ), the support assembly 4 , and the operation assembly 2 includes a clamping part 201 and an operation part 202 .

The clamp head assembly 1 includes a first clamp head 101 and a second clamp head 102. The first clamp head 101 is hinged with the second clamp head 102 and the first operation rod 2011 respectively, and the second clamp head 102 and the second operation rod 2012. Fixed connection; the jaw regions of the first jaw 101 and the second jaw 102 are provided with matching jaw teeth.

As shown in FIG. 4 , the support assembly 4 includes a support rod 401 and a transmission rod 402. The support rod 401 is hinged with the transmission rod 402 and the second operation rod 2012 respectively. The first operation rod 2011 is provided with an adjustable lever 404. The second operating rod 2012 is provided with a guide groove 403, the guide groove 403 includes a first latching position and a second latching position, the free end of the transmission rod 402 is located in the guide groove 403, along with the first operating rod 2011 and the second operating rod 2012 The axial relative movement of the lever 404 can be controlled to move the free end of the transmission rod 402 along the first track from the first card position to the second card position (the support part is in an open state), or the free end of the transmission rod 402 can be moved. From the second position and under the action of the pre-contraction force of the support rod 401, it retreats to the first position along the second trajectory (the support rod 401 is in a retracted state), so as to realize the support of the target tissue such as the liver in a large contact range, assisting Exposure of the surgical field in the target area; the support rod 401 is hinged with the transmission rod 402 and the second operation rod 2012 at its end position, and the support rod 401 is opened in a fan shape in use. Optionally, the support rod 401 and the transmission rod 402 and the second operation rod 2012 can be hinged at their ends and tops, respectively, as shown in FIG. The flexible film 406 is covered with a flexible film 406 to achieve a larger area of contact and support between the support rod 401 and the liver or other tissues. The flexible film 406 includes a preset folded state and an unfolded state presented when the support rod 401 and the transmission rod 402 are opened;

As shown in FIG. 1 , the locking structure includes a pawl 6 on the first operating rod 2011 , a plurality of positioning teeth (combined to form a positioning rack 5 ) on the second operating rod 2012 that are distributed along the axial direction. After the assembly 1 enters the predetermined position to clamp the target tissue, the first operating rod 2011 and the third operating rod 2021, the second operating rod 2012 and the fourth operating rod 2022 are separated, and the device handles (the first handle 2023 and the second handle 2024) are removed. , and limit the axial relative movement between the first operating rod 2011 and the second operating rod 2012 to further keep the first clamp head 101 and the second clamp head 102 in a closed state; The locking of an operating rod 2011 and the second operating rod 2012 enables the release of the first jaw 101 and the second jaw 102 . Optionally, the pawl 6 can be linked with the latch 305 located on the fourth operating lever 2022. When the latch 305 is in the engaged position, the pawl 6 is in a released state, and when the latch 305 is in the open position, the pawl 6 is in a natural state. locked state.

The operating assembly 2 includes a first operating rod 2011 and a second operating rod 2012 at the front end and a third operating rod 2021 and a fourth operating rod 2022 at the rear end. The first operating rod 2011 and the second operating rod 2012 on the front end and the The third operating rod 2021 and the fourth operating rod 2022 are axially movable relative to each other; the front end of the operating assembly 2 is connected to the forceps head assembly 1, and the rear end is connected to the gripping part (the first handle 2023 and the second handle 2024); The first operating rod 2011 and the second operating rod 2012 are detachably connected to the third operating rod 2021 and the fourth operating rod 2022 at the rear end respectively through the hooks and grooves (linkage structure 3) located thereon (see 2 and 3); the linkage structure 3 includes a latch 305 hinged on the fourth operating lever 2022 for connecting the first operating lever 2011 and the second operating lever 2012 with the third operating lever 2021 and the fourth operating lever 2022 After connecting two by two, respectively, hoop the connecting position, preventing the separation between the first operating rod 2011 and the second operating rod 2012 at the front end and the third operating rod 2021 and the fourth operating rod 2022 at the rear end, while retaining the first and second operating rods at the front end. The degree of freedom of axial movement between the first operating rod 2011 and the second operating rod 2012 and the third operating rod 2021 and the fourth operating rod 2022 at the rear end.

The grip portion includes a first handle 2023 and a second handle 2024 that are hingedly connected. Optionally, the grip portion may further include a snap 2025, the snap 2025 is used for positioning the opening and closing angles of the first handle 2023 and the second handle 2024, and further used for the third operating rod 2021 and the fourth operating rod at the rear end After 2022 is disassembled, the relative position is kept fixed so that it can be connected with the first operating rod 2011 and the second operating rod 2012 at the front end during reassembly.

Intraoperative operation of clip application aids for laparoscopic surgery:

(1) Auxiliary exposure operation field operation

In the closed state of the jaws, the device enters the predetermined position in the patient's body from the puncture channel;

Operate the first handle 2023 and the second handle 2024 to open the jaws, and at the same time control the lever 404 to move the free end of the transmission rod 402 from the first card position along the first track to the second card position (the support rod 401 is in the open state and locked ); operate the first handle 2023 and the second handle 2024 to close the jaws to clamp the predetermined tissue (such as the peritoneum);

Release the latch 305 and separate the front and rear first operating rods 2011 from the third operating rod 2021 and the second operating rod 2012 and the fourth operating rod 2022, and lock the front first operating rod 2011 through the pawl 6 and the second operation rod 2012 and between the first forceps head 101 and the second forceps head 102, the front ends of the first operation rod 2011 and the second operation rod 2012 are supported on the puncture channel, the forceps head assembly 1, the front end of the first operation The ends of the rod 2011 and the second operating rod 2012 form a fulcrum, and the support assembly 4 in the deployed form supports the target tissue (such as the liver) to reveal the vision of the target area;

(2) Release operation (adjust the clamping position or complete the operation)

the first operation lever 2011 and the third operation lever 2021 connecting the front and rear ends, and the second operation lever 2012 and the fourth operation lever 2022 connecting the front and rear ends;

Close the latch 305 and release the pawl 6 to release the locking between the first operating rod 2011 and the second operating rod 2012 at the front end and between the first clamp head 101 and the second clamp head 102;

Operate the first handle 2023 and the second handle 2024 to open the jaws, and at the same time, the lever 404 pulls the hinge point of the transmission rod 402 away from the second clamping position. The track returns to the first position (the support rod 401 is in a folded state); the first handle 2023 and the second handle 2024 are operated to close the jaws and withdraw the device from the puncture channel.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A clip-applying aid for endoscopic surgery, for supporting and/or pulling tissues and organs to assist in revealing a surgical field, comprising a forceps head assembly (1) and an operating assembly (2), through which the operation The assembly (2) controls the opening and closing of the pliers head assembly (1), It is characterized in that, The operating assembly (2) comprises a clamping part (201) for holding the clamping and remaining at the predetermined position after clamping and positioning at a predetermined position, and a clamping part (201) for stably clamping the predetermined position The operation part (202) is then removed from the clamping part (201) to make room for operation, The clamping part (201) and the operating part (202) are connected and linked by a linkage structure (3); The clamping part (201) is provided with a support component (4) for supporting tissues and organs by controlling and unfolding to assist in revealing the surgical field; The clamping part (201) is connected to the supporting assembly (4), and the clamping part (201) is controlled by the operating part (202) to drive the supporting assembly (4) to move so as to realize the supporting assembly (4) or the operation part (202) connects and controls the support assembly (4) to expand or collapse, or the support assembly (4) is provided with a control for controlling the support assembly (4) to expand or collapse device. 2. The clip-applying auxiliary device for endoscopic surgery according to claim 1, characterized in that, The pliers head assembly (1) includes a first pliers head (101) and a second pliers head (102), The clamping part (201) includes a first operating rod (2011) and a second operating rod (2012), The first clamp head (101) is hinged with the second clamp head (102) and the first operation rod (2011), respectively, and the second clamp head (102) is connected with the second operation rod (2012) ) fixed connection, The first operating rod (2011) and the second operating rod (2012) are arranged in parallel, and the first operating rod (2011) moves axially relative to the second operating rod (2012) to push the The first forceps head (101) rotates around the second forceps head (102) to realize the engagement or opening of the first forceps head (101) and the second forceps head (102). 3. The clip-applying auxiliary device for laparoscopic surgery according to claim 2, characterized in that, The operation part (202) includes a third operation lever (2021), a fourth operation lever (2022), a first handle (2023) and a second handle (2024), The first handle (2023) is hingedly connected to the second handle (2024) and the third operation lever (2021), respectively, and the fourth operation lever (2022) is fixed to the second handle (2024) connect, The first handle (2023) rotates relative to the second handle (2024) and drives the third operating rod (2021) to move axially, and the third operating rod (2021) drives the first operating rod (2011) Axial linkage, thereby realizing the engagement or opening of the first forceps head (101) and the second forceps head (102). 4. The clip-applying auxiliary device for laparoscopic surgery according to claim 3, characterized in that, Between the first handle (2023) and the second handle (2024), a buckle (2025) for positioning relative movement between the first handle (2023) and the second handle (2024) is further provided ) and a supporting elastic sheet (2026) for increasing the control tactility of the relative movement between the first handle (2023) and the second handle (2024). 5. The clip-applying auxiliary device for laparoscopic surgery according to claim 3, characterized in that, The linkage structure (3) comprises a first hook (301) provided on the rod end of the first operating rod (2011), a second hook (302) provided on the rod end of the second operating rod (2012), The first engaging groove (303) opened at the rod end of the third operation rod (2021) along the radial direction of the third operation rod (2021), and the first clamping groove (303) opened at the radial direction of the fourth operation rod (2022) The second slot (304) at the rod end of the fourth operating lever (2022) and the lock (305) hinged on the second operating lever (2012), The first operating rod (2011) passes through the through hole between the second operating rod (2012) and the lock (305), and is connected and assembled on the second operating rod (301) through the first hook (301). The first locking slot (303) of the three operating rods (2021) is arranged so that the first operating rod (2011) and the third operating rod (2021) are coaxially assembled, The second operating lever (2012) is connected and assembled in the second locking groove (304) of the fourth operating lever (2022) through the second hook (302), so that the second operating lever (2012) is coaxially assembled with the fourth operating lever (2022), The locking buckle (305) is rotated and fastened at the connection part of the clamping part (201) and the operating part (202), so that the first hook (301) and the first hook (301) after the connection and assembly are connected The clamping slot (303), the second clamping hook (302) and the second clamping slot (304) are clamped in the inner cavity of the locking buckle (305), thereby realizing the clamping part (201) Linked connection with the operation part (202). 6. The clip-applying auxiliary device for laparoscopic surgery according to claim 5, characterized in that, A positioning rack (5) and a pawl (6) are respectively provided between the first operating lever (2011) and the second operating lever (2012), and the pawl (6) is connected to the lock on the buckle (305) and linked with the lock (305); The lock catch (305) is rotatably fastened to the connection part of the clamping part (201) and the operating part (202), and the pawl (6) is disengaged from the positioning rack (5), and further causing the operation part (202) to be linked with the clamping part (201); The lock catch (305) is rotated to disengage from the connection part of the clamping part (201) and the operating part (202), and the pawl (6) is pressed against the positioning rack (5), Further, the relative movement between the first operating rod (2011) and the second operating rod (2012) is locked, so that the operating part (202) can be removed from the clamping part (201) without The engagement of the first forceps head (101) and the second forceps head (102) is affected. 7. The clip-applying auxiliary device for endoscopic surgery according to any one of claims 2 to 6, characterized in that, The support assembly (4) includes a support rod (401), a transmission rod (402), a guide groove (403) and a lever (404), The guide groove (403) is opened on the second operating rod (2012), the ends of a plurality of the support rods (401) intersect and the intersecting parts are hingedly assembled on the second operating rod (2012) , the free ends of the support rods (401) are arranged in the direction of the pliers head assembly (1), a plurality of the transmission rods (402) and a plurality of the support rods (401) are arranged in a one-to-one correspondence, the transmission rods (401) The first ends of the rods (402) are hingedly connected to the side walls of the corresponding support rods (401), and the second ends of the plurality of transmission rods (402) are hingedly connected to each other and combined to form a hinged slider (405), The hinged slider (405) is slidably connected in the guide groove (403), The hinged slider (405) is moved from the initial position of the guide groove (403) to the end position by the toggle lever (404) to push the support rod (401) via the transmission rod (402). Expand outward to realize the support of the tissue and organ by the support rod (401), and move the hinged slider (405) from the end position of the guide groove (403) to the initial position through the toggle rod (404). position to pull the support rod (401) inwardly through the transmission rod (402). 8. The clip-applying auxiliary device for laparoscopic surgery according to claim 7, wherein, The support rod (401) is covered with a flexible film (406), and the flexible film (406) is provided with a crease that is folded and folded with the support rod (401). 9. The clip-applying auxiliary device for endoscopic surgery according to any one of claims 2 to 6, characterized in that, The support assembly (4) includes a support rod (401), a transmission rod (402), a guide groove (403) and a lever (404), The guide groove (403) is opened on the second operating rod (2012), the ends of the plurality of supporting rods (401) intersect and the intersecting parts are hingedly assembled on the second operating rod (2012), The free ends of the support rods (401) are arranged in the direction of the operation part (202), the plurality of transmission rods (402) are arranged in a one-to-one correspondence with the plurality of the support rods (401), and the transmission rods ( The first end of 402) is hingedly connected with the free end of the corresponding support rod (401), and the second ends of the plurality of transmission rods (402) are hingedly connected to each other and combined to form a hinged slider (405). The hinged slider (405) is slidably connected in the guide groove (403), The hinged slider (405) is moved from the initial position of the guide groove (403) to the end position by the toggle lever (404) to push the support rod (401) via the transmission rod (402). Expand outward to realize the support of the tissue and organ by the support rod (401), and move the hinged slider (405) from the end position of the guide groove (403) to the initial position through the toggle rod (404). position to pull the support rod (401) inwardly through the transmission rod (402). 10. The clip-applying auxiliary device for laparoscopic surgery according to any one of claims 3 to 6, characterized in that, The second operating rod (2012) is further provided with a guide sleeve, the first operating rod (2011) is passed through the guide sleeve, and the first operating rod (2011) is relative to the first operating rod (2011) through the guide sleeve. The axial movement of the two levers (2012) is guided; and/or The fourth operating rod (2022) is further provided with a guide sleeve, the third operating rod (2021) is passed through the guide sleeve, and the third operating rod (2021) is relative to the first operating rod (2021) through the guide sleeve. Axial movement of the four levers (2022) is guided.

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