Disclosure of Invention
The invention aims to provide an integrated endoscope stitching device which is reasonable in structural arrangement and smooth in operation, aiming at the defects in the background technology.
In order to achieve the above object, the present invention provides an endoscopic stitching device, comprising an endoscope, a main needle control module, an auxiliary needle control module and a lifting and thread cutting module;
The main needle control module comprises a main needle driving assembly, a first connecting rod and a first control assembly which are sequentially connected, wherein the auxiliary needle control module comprises an auxiliary needle switching assembly, a second connecting rod and a second control assembly which are sequentially connected, the lifting and cutting module comprises a lifting and cutting assembly, a third connecting rod and a third control assembly which are sequentially connected, the first control assembly controls the main needle driving assembly through a first control steel wire, the first control steel wire penetrates through the first connecting rod, the second control assembly controls the auxiliary needle switching assembly through a second control steel wire, the second control steel wire penetrates through the second connecting rod, the third control assembly controls the lifting and cutting assembly through a third control steel wire, and the third control steel wire penetrates through the third connecting rod;
The main needle driving assembly is used for driving the main needle, the auxiliary needle switching assembly is used for fixing and loosening the auxiliary needle, the auxiliary needle is matched with the main needle and connected with a suture, and the lifting and cutting line assembly is used for lifting and cutting human tissues and cutting the suture after suturing;
The endoscope is provided with a plurality of functional channels, a first functional channel corresponds to the main needle control module, the first connecting rod penetrates through the first functional channel, the main needle driving assembly is fixed at the inner end of the endoscope, a second functional channel corresponds to the auxiliary needle control module, the auxiliary needle switching assembly and the second connecting rod penetrate through the second functional channel, the auxiliary needle switching assembly is detachably arranged at the inner end of the endoscope, a third functional channel corresponds to the lifting and cutting wire module, the lifting and cutting wire assembly and the third connecting rod penetrate through the third functional channel, the lifting and cutting wire assembly is detachably arranged at the inner end of the endoscope, and a fourth functional channel is used for enabling an image module to pass through.
Further, the main needle driving assembly comprises a connecting arm and a main needle driving seat, a connecting groove is formed in the main needle driving seat, the connecting arm comprises a first connecting arm and a second connecting arm, the first end of the first connecting arm is fixedly connected with the main needle, a pin shaft is arranged at the second end of the first connecting arm, the pin shaft is movably connected with the connecting groove, the first end of the second connecting arm is hinged with the first connecting arm, the second end of the second connecting arm is hinged with the main needle driving seat, and the first control steel wire is connected with the second end of the first connecting arm or the pin shaft.
Further, the main needle driving assembly further comprises a main needle reset spring, the main needle reset spring is arranged in the connecting groove, and two ends of the main needle reset spring are respectively connected with the second end of the first connecting arm and the main needle driving seat.
Further, the first control assembly comprises a first control seat, a fixed handle and a movable handle, wherein the fixed handle is fixedly connected with the first control seat, the movable handle can rotate relative to the fixed handle, the second end of the first control steel wire is associated with the movable handle, a first reset spring is further arranged in the first control seat, and the first reset spring is connected with the movable handle.
Further, the auxiliary needle switching assembly comprises a clamping seat and a clamping device arranged in the clamping seat, the auxiliary needle is provided with a clamping groove, the clamping device is made of elastic materials, a clamping block matched with the clamping groove is arranged at the first end of the clamping device, a control surface is arranged at the second end of the clamping device, the control surface is obliquely arranged relative to the axial direction of the clamping device, a control ball is arranged at the position of the control surface, and the control ball is connected with the first end of the first control steel wire.
Further, the auxiliary needle is provided with a combining block, the main needle is provided with a combining groove matched with the combining block, the auxiliary needle is provided with a suture connecting groove, and the first end of the suture is inserted into the suture connecting groove and fixed with the auxiliary needle.
Further, the second control assembly comprises a second control seat and a control button, the control button is movably connected with the second control seat, the second end of the second control steel wire is connected with the control button, and a second reset spring is further arranged between the control button and the second control seat.
Further, the lifting and trimming assembly comprises a lifting and trimming seat and a lifting and trimming anchor, the whole lifting and trimming anchor is in spiral arrangement, a spike part is arranged at the first end of the lifting and trimming anchor, and the second end of the lifting and trimming anchor is connected with the first end of the third control steel wire.
Further, the third control assembly comprises a third control seat and a control knob, the control knob is movably connected with the third control seat, the second end of the third control steel wire is connected with the control knob, and a third reset spring is further arranged between the control knob and the third control seat.
Further, the lifting and cutting seat is provided with a blade, and the blade is used for cutting off the suture, so that the suture after being sutured is cut off and remains at the wound position.
The scheme of the invention has the following beneficial effects:
According to the endoscope suturing device, through the arrangement of the main needle control module, the auxiliary needle control module and the lifting and cutting thread module, human tissue wounds can be continuously sutured at one time, a minimally invasive surgery mode is adopted, surgery operation is smooth, structural arrangement is reasonable, the main needle and the auxiliary needle are convenient to control, efficiency and quality of minimally invasive surgery are remarkably improved, the lifting and cutting thread assembly simultaneously has the functions of lifting and cutting human tissues and cutting suture threads, precious channel occupation of an endoscope can be reduced compared with the arrangement of the two modules, meanwhile, module installation steps are saved, and operation flow is simplified;
Other advantageous effects of the present invention will be described in detail in the detailed description section which follows.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a primary needle drive assembly of the present invention;
FIG. 3 is a schematic diagram of a first control assembly according to the present invention;
FIG. 4 is a schematic view of an auxiliary needle switching assembly and pull-up trimming of the present invention;
FIG. 5 is a schematic diagram showing the cooperation of the auxiliary needle and the fastener of the present invention;
FIG. 6 is a schematic diagram of the auxiliary needle and main needle of the present invention;
FIG. 7 is a schematic diagram of a second control assembly according to the present invention;
FIG. 8 is a schematic diagram of a third control assembly according to the present invention;
FIG. 9 is a flow chart of the post suture cutting process of the present invention.
[ Reference numerals description ]
10-Console, 20-endoscope, 30-main needle control module, 31-first connecting rod, 32-first control wire, 33-main needle driving seat, 34-first connecting arm, 35-second connecting arm, 36-connecting groove, 37-pin shaft, 38-main needle reset spring, 39-first control seat, 310-fixed handle, 311-movable handle, 40-auxiliary needle control module, 41-second connecting rod, 42-second control wire, 44-clamping seat, 45-clamping device, 46-clamping block, 47-control surface, 48-control ball, 49-second control seat, 410-control button, 411-second reset spring, 50-lifting wire cutting module, 51-third connecting rod, 52-third control wire, 53-lifting wire cutting seat, 54-lifting anchor, 55-third control seat, 56-control knob, 57-third reset spring, 58-blade, 60-main needle, 61-clamping groove, 70-auxiliary needle, 71-clamping groove, 72-73-connecting groove and 80-connecting groove.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, locked, removable, or integrally connected, mechanically or electrically connected, or indirectly connected via an intervening medium, or may be any communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, an embodiment of the present invention provides an endoscopic stitching device including a console 10, an endoscope 20, a primary needle control module 30, a secondary needle control module 40, and a pull-up trimming module 50. Wherein, the main needle control module 30 includes a main needle driving assembly, a first connecting rod 31 and a first control assembly that connect in sequence, the auxiliary needle control module 40 includes an auxiliary needle switching assembly, a second connecting rod 41 and a second control assembly that connect in sequence, and the pull-up trimming module 50 includes a pull-up trimming assembly, a third connecting rod 51 and a third control assembly that connect in sequence. The first control assembly is independent of the operation table 10, the second control assembly of the auxiliary needle control module and the third control assembly of the lifting and cutting wire module are all arranged on the operation table 10, the operation table 10 can be fixed on an arm or other installation positions through the fixing part, and the comprehensive operation of three modules is facilitated for operators.
The endoscope 20 is provided with a plurality of functional channels, including four functional channels in this embodiment. The first functional channel corresponds to the main needle control module, the first connecting rod 31 passes through the first functional channel after being installed, and the main needle driving assembly adopts a setting mode of being fixed at the inner end of the endoscope 20. The second functional channel corresponds to an auxiliary needle control module, and after installation, an auxiliary needle switching assembly and a second connecting rod 41 pass through the second functional channel, and the auxiliary needle switching assembly extends out of the inner end of the endoscope 20. The third functional channel corresponds to a lifting and wire cutting module, and after the lifting and wire cutting module is installed, the lifting and wire cutting module and the third connecting rod 51 penetrate through the third functional channel, and the lifting and wire cutting module extends out of the inner end of the endoscope 20. The fourth functional channel is then used for the passage of the image module. The first control assembly controls the main needle driving assembly through a first control steel wire 32, and the first control steel wire 32 penetrates through the first connecting rod 31. The second control assembly controls the auxiliary needle switching assembly through a second control steel wire 42, and the second control steel wire 42 penetrates through the second connecting rod 41. The third control assembly controls the lifting and cutting assembly through a third control steel wire 52, and the third control steel wire 52 penetrates through a third connecting rod 51. The accuracy of control can be ensured by controlling the driving force transmitted by the steel wire driving mode.
In the present embodiment, the main needle control module 30 is used for controlling the main needle 60, the auxiliary needle control module is used for controlling the auxiliary needle 70, and the main needle 60 and the auxiliary needle 70 are mutually matched. In the primary needle 60, which is integrally connected to the secondary needle 70 in the initial state of suturing, the secondary needle 70 is connected to the distal end of the suture 80. When suturing a wound of human tissue (e.g., a gastric wall wound), the entirety of the main needle 60 and the auxiliary needle 70 are perforated and penetrated from a first side of the wound, then the auxiliary needle 70 is inserted into an auxiliary needle switching assembly, which secures the auxiliary needle 70 such that the auxiliary needle 70 is disengaged from the main needle 60 after the main needle 60 is reset, then the main needle 60 (alone) is perforated and penetrated from a second side of the wound, the auxiliary needle 70 is loosened after the auxiliary needle 70 is inserted, the main needle 60 is reset to drive the auxiliary needle 70 to reversely pass through the second side of the wound, and the above-described process is circulated to connect both sides of the wound with the suture 80, thereby tightening the suture 80 to complete suturing of the wound.
Therefore, the main needle 60 is repeatedly driven to puncture and reset the human tissue by the corresponding control wire during the suturing process, and the auxiliary needle 70 is fixed and released. Also as shown in fig. 2, the main needle driving assembly includes a connection arm fixedly connected to the end of the main needle 60, and a main needle driving seat 33 connected to and supporting the connection arm. The connecting arms include a first connecting arm 34 and a second connecting arm 35, and a connecting groove 36 is provided on the main needle driving seat 33. The first end of the first connecting arm 34 is fixedly connected with the main needle 60, the second end of the first connecting arm 34 is provided with a pin 37, the pin 37 is movably connected with the connecting groove 36, and the pin 37 slides relative to the connecting groove 36 in the sewing process. The first end of the second connecting arm 35 is hinged to the first connecting arm 34, and the second end of the second connecting arm 35 is hinged to the main needle driving seat 33. Thus, the first connecting arm 34 and the second connecting arm 35 together form a double connecting arm structure. The first control wire 32 is connected to a second end or pin 37 of the first connecting arm 34, and when the first control assembly pulls the first control wire 32, the first control wire 32 can pull the second end of the first connecting arm 34 to translate, thereby causing the second end of the first connecting arm 34 to perform a combined movement of translation and rotation about the hinge point of the second connecting arm 35 to puncture human tissue according to a predetermined trajectory. The return of the main needle 60 is accomplished by means of the main needle return spring 38. The main needle return spring 38 is disposed in the connecting slot 36, and two ends of the main needle return spring 38 are respectively connected with the second end (pin shaft 37) of the first connecting arm 34 and the main needle driving seat 33, so that when the first control steel wire 32 pulls the first end of the first connecting arm 34 to translate, the main needle return spring 38 is compressed, and when the main needle return spring 38 returns, elastic potential energy is released, so that the first end of the first connecting arm 34 translates reversely.
Therefore, by the combination of the first connecting arm 34 and the second connecting arm 35, for the rotation (superposition translation) driving of the main needle 60, the transmission mode can further improve the smoothness of the driving of the main needle 630 compared with the gear transmission, the transmission of the pulling force can be more direct, and the jamming phenomenon can be obviously reduced.
Also as shown in fig. 3, the first control assembly includes a first control seat 39, a fixed handle 310, and a movable handle 311. The fixed handle 310 is fixedly connected with the first control seat 39, the movable handle 311 can rotate relative to the fixed handle 310, so that an operator can hold the fixed handle 310 and the movable handle 311 in operation and press the movable handle 311 to finish pulling the first control steel wire 32. The second end of the first control wire 32 in the first control seat 39 is associated with the movable handle 311, and the return is completed through the main needle return spring 38, although a first return spring may be further disposed in the first control seat 39, and the movable handle 311 is returned by directly providing an elastic force through the first return spring.
As shown in fig. 4 and 5, the auxiliary needle switching assembly includes an engaging seat 44 and an engaging device 45 disposed in the engaging seat 44. Wherein, the auxiliary needle 70 is provided with a clamping groove 71, a first end of the clamping device 45 is provided with a clamping block 46 matched with the clamping groove 71, and the clamping device 45 is made of elastic material. When the auxiliary needle 70 is inserted into the latch 45 from the first end of the latch 45, the tapered surface (spike) of the front end of the auxiliary needle 70 can open the latch 46, so that the auxiliary needle 70 is engaged by elastic recovery after moving to the pair Ji Kacao of latches 46. A control surface 47 is provided at the second end of the latch 45, the control surface 47 being also inclined with respect to the axial direction of the latch 45, and a control ball 48 is provided at the control surface 47, the control ball 48 being spherical (or other shape) and being connected to the first end of the first control wire 32. When the auxiliary needle 70 needs to be loosened, the second control steel wire 42 is controlled to push the control ball 48, so that the control ball 48 moves towards the first end of the clamping device 45 along the control surface 47, the first end of the clamping device 45 is opened, the clamping block 46 withdraws from the clamping groove 71 to loosen the auxiliary needle 70, and the main needle 60 is conveniently combined with the auxiliary needle 70. Of course, the first end of the latch 45 is further provided with a plurality of notches, so that the first end of the latch 45 forms a petal-like structure, and can be smoothly opened under the action of the control ball 48.
Meanwhile, as shown in fig. 6, in this embodiment, the combination of the main needle 60 and the auxiliary needle 70 also adopts a similar structure, that is, the rear portion of the auxiliary needle 70 is provided with the combination block 72, the front portion of the main needle 60 is provided with the combination groove 61, of course, the combination groove 61 and the combination block 72 have smaller thickness and taper shape, compared with the auxiliary needle 70 and the clamp 45, the limiting force is smaller, and the clamp 45 is convenient for fixing and releasing the auxiliary needle 70. In addition, the auxiliary needle 70 in this embodiment is provided with a suture connection groove 73, and a first end (after knotting) of the suture 80 is inserted into the suture connection groove 73 to be fixed with the auxiliary needle 70.
Meanwhile, as shown in fig. 7, the second control assembly comprises a second control seat 49 and a control button 410, wherein the control button 410 is movably connected with the second control seat 49 and can move relative to the second control seat 49, and the second end of the second control steel wire 42 is connected with the control button 410. When the operator presses the control button 410, the second control wire 42 may be pushed (the second control wire 42 has a certain stiffness), so that the control ball 48 at the first end of the second control wire 42 moves toward the first end of the latch 45, and the auxiliary needle 70 is released. As a preferred embodiment, a second return spring 411 is further disposed between the control button 410 and the second control seat 49, and when the operator releases the control button 410, the control button 410 automatically returns under the action of the second return spring 411, so as to return the control ball 48. Therefore, after the auxiliary needle 70 is combined with the main needle 60, the main needle 60 can be controlled by the first control component to drive the auxiliary needle 70 to move only by releasing the control button 410, so that the operation of an operator is simplified.
In this embodiment, the pull-up wire cutting assembly includes a pull-up wire cutting seat 53 and a pull-up anchor 54. Wherein, the first end of the lifting anchor 54 is provided with a spike part, and the whole body is spirally arranged at the same time, so as to smoothly anchor into human tissues and lift the human tissues, thereby facilitating the main needle 60 and the auxiliary needle 70 or the main needle 60 to independently puncture the human tissues. The second end of the lifting anchor 54 is connected to the first end of the third control wire 52 in the lifting wire holder 53, and the third control wire 52 controls the displacement of the lifting anchor 54 on the one hand and the rotation of the lifting anchor 54 on the other hand, so that the lifting anchor 54 is smoothly anchored into the human tissue.
Meanwhile, as shown in fig. 8, the third control assembly comprises a third control seat 55 and a control knob 56, the control knob 56 is movably connected with the third control seat 55, and can move and rotate relative to the third control seat 55, and the second end of the third control steel wire 52 is connected with the control knob 56. When the operator presses the control knob 56, the third control wire 52 may be pushed (the third control wire 52 has a certain stiffness), so that the lifting anchor 54 at the first end of the third control wire 52 moves to the outside of the lifting and cutting wire seat 53 until the third control wire is inserted into human tissue, then the control knob 56 is synchronously rotated to enable the lifting anchor 54 to be rotationally anchored into the human tissue, and then the control knob 56 is lifted outwards. Similarly, a third return spring 57 is further provided between the control knob 56 and the third control seat 55, and when the operator releases the control knob 56, the control knob 56 automatically returns under the action of the third return spring 57, thereby returning the lifting anchor 54. Of course, prior thereto, the control knob 56 would need to be counter-rotated to separate from the body tissue.
In the present embodiment, the end of the pull-up wire holder 53 is provided with a blade 58, and preferably the blade 58 is provided in a ring shape, integrally formed with the edge of the pull-up wire holder 53. The blade 58 is used to sever the suture 80 so that the completed suture 80 is severed and remains in the wound site. Also, as shown in fig. 9, after suturing is completed, the first end of the suture thread 80 and the auxiliary needle 70 remain near the wound, and the second end of the suture thread 80 (the cut second end) is located in the first functional channel of the endoscope 20, that is, the channel where the auxiliary needle control module is located, and is extended to the outside without being cut at this time. Therefore, when cutting a wire, the pulling anchor 54 is extended relative to the pulling cutting seat 53 by the control knob 56, then the whole endoscope 20 is rotated, the suture 80 and the pulling anchor 54 have different rotation centers due to different channels, and the first end of the suture 80 is not moved, so that the suture 80 can be wound on the pulling anchor 54, and then the pulling anchor 54 is rotated again, so that the suture 80 can be wound firmly based on the spiral shape of the pulling anchor 54. Then the control knob 56 is pulled outwards to retract the lifting anchor 54 into the lifting and trimming seat 53, the suture 80 is directly cut by the sharp blade 58 when passing through the edge position of the lifting and trimming seat 53, so that the second end of the suture 80 is formed and remains near the wound, and the residual suture 80 on the lifting and trimming anchor 54 can be recovered after the lifting and trimming module is taken out integrally.
As described above, the lifting and thread cutting assembly provided in this embodiment has both functions of lifting and cutting human tissues and suture threads, so that precious channel occupation of the endoscope 20 can be reduced compared with the arrangement of two modules, meanwhile, module installation steps are saved, and operation flow is simplified.
It should be noted that, for the second end of the suture 80, a structure such as the auxiliary needle 70 is not provided in the present embodiment, instead, a barb structure is provided at the second end of the suture 80, and the degree of combination with human tissue is improved by means of the barb structure, so that the suture does not loosen before the wound is healed.
In short, the endoscope stitching device provided in this embodiment, through the arrangement of the main needle control module 30, the auxiliary needle control module 40 and the lifting and cutting wire module 50, can perform continuous stitching on the human tissue wound at one time, adopts the mode of minimally invasive surgery, has smooth operation, reasonable structure arrangement, and convenient control of the main needle 60 and the auxiliary needle 70, and remarkably improves the efficiency and quality of minimally invasive surgery.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.