The chamber mirror surgical cutting anastomat that has the elasticity neck ring
Technical field
The present invention relates to the chamber mirror surgical cutting anastomat that in the thoracoscope surgical operation, uses, specifically, relate to a kind of chamber mirror surgical cutting anastomat that has the elasticity neck ring, belong to medical instruments field.
Background technology
In the mirror surgical operation of chamber, chamber mirror surgical cutting anastomat is normally used for cutting anastomosis operations such as esophagus in the digestive tract, stomach, duodenum, small intestinal, colon, rectum, vermiform appendix, gallbladder, pancreas and spleen, also be used to cutting such as lung and trachea anastomosis operation in the respiratory tract, also be used to cutting such as bladder and uterus anastomosis operation in the genitourinary system, can reduce operating time, improve the operation quality.
Existing chamber mirror surgical cutting anastomat has the various chambeies mirror surgical cutting anastomat of introducing in United States Patent (USP) 20080308602,20090206124 and 20090206137.When using chamber mirror surgical cutting anastomat, be that the puncture needle of 12mm to 13mm enters the human intracavity by internal diameter earlier with Executive Head, controlling axial rotation of Executive Head and/or joint again rotates so that aim at identical tissue to be cut, can operate clamping device, promote slide bar, identical tissue holder to be cut is held between the nail anvil and nail bin of Executive Head.Operate firing lock then, promote slide bar again: the two ends of the nail anvil and the nail bin of Executive Head are inserted at the two ends of slide bar respectively, make to reach required grip thickness between nail anvil and the nail bin; Slide bar promotes the ejector pin piece by the ejector pin slide plate, anastomosis staple is released in the nail bin penetrate clamped to be cut identical tissue and direct reach anastomosis staple grooving on the nail anvil, makes the U-shaped anastomosis staple bend to B shape, reaches the operation purpose of will tissue coincideing; The clamped to be cut identical tissue of cutter cutting on the slide bar reaches the operation purpose with the tissue cutting.After finishing the identical operation of cutting, the operation clamping device unclamps and cuts the tissue that coincide, so that withdraw from chamber mirror surgical cutting anastomat.The clamping device and the firing lock of chamber mirror surgical cutting anastomat also can adopt other operating mechanism.Operating mechanism can also have indicating mechanism.Various operating mechanisms such as the clamping device of chamber mirror surgical cutting anastomat and firing lock can be the manual chamber mirror surgical cutting anastomats as United States Patent (USP) 20080308602 and 20090206137, also can be the electronic chamber mirror surgical cutting anastomat as United States Patent (USP) 20090090763 and 20090095790, can also be the fluid-operated chamber mirror surgical cutting anastomat as United States Patent (USP) 20070125826 and 20080029577.
Existing chamber mirror surgical cutting anastomat, its ingredient comprises: the operating mechanism of the extension of anastomat body, Executive Head, the described anastomat body of connection and Executive Head, the action of control Executive Head.Executive Head is formed by carrying out frame, balladeur train, nail bin and nail anvil.On the execution frame, slide bar, nail bin and nail anvil are installed.Nail bin is made up of cartridge housing, ejector pin piece, ejector pin slide plate and anastomosis staple.Nail groove, ejector pin hole and push broach groove are arranged in the cartridge housing.Anastomosis staple is installed in the nail groove.The ejector pin piece is installed in the ejector pin hole.The ejector pin piece can move in the ejector pin hole so that anastomosis staple is released in the nail groove.The ejector pin slide plate relies on the inclined-plane to promote the ejector pin piece and anastomosis staple is released in the nail groove when mobile in the ejector pin hole.Anastomosis staple takes the shape of the letter U, and is made up of two nail lower limbs, a nail beam and two nail points.One end of nail lower limb is connected with the nail beam respectively, the other end is respectively the nail point.Anastomosis staple can adopt stainless steel silk, tantalum wire, titanium silk or other to have the tinsel manufacturing of similar performance.Two nail lower limbs of anastomosis staple are inserted in the nail groove.The nail beam of anastomosis staple is sitting on the top of ejector pin piece.Have on the end face of nail anvil the anastomosis staple grooving corresponding with the anastomosis staple position in the nail bin and with nail bin in push broach groove position corresponding cutting groove.The nail groove of cartridge housing and ejector pin hole are arranged in the both sides of push broach groove.The anastomosis staple grooving respective row of nail anvil is listed in the both sides of the cutting groove of nail anvil.The anastomosis staple grooving of nail anvil and the nail groove of nail bin and ejector pin hole can be arranged in two rows, three rows, four rows, five rows, six rows, seven row or eight rows altogether according to surgical operation to cutting identical needs.Cutter are arranged on the slide bar, can in the cutting groove of the push broach groove of nail bin and nail anvil, move.
When using chamber mirror surgical cutting anastomat, nail anvil and nail bin clamping that need be by Executive Head, clamp and unclamp identical tissue to be cut, so that finish the operation purpose of coincideing tissue and cutting and organizing.As the chamber mirror surgical cutting anastomat of being introduced in the United States Patent (USP) 20090206137, the near-end of its nail anvil has stair-stepping structure and keeps nail anvil to open the spring of trend.When slide bar was positioned at the stepped place of nail anvil near-end, slide bar and nail anvil disengaged, and nail anvil relative nail bin under the effect of spring is held open state.When slide bar when nail anvil near-end stepped moves to straight place, the projection that the projection of slide bar one end is pressed in the straight place of nail anvil, the other end is pressed on the bottom of carrying out frame, makes nail anvil turn to relative nail bin and is closure state, so that clamping identical tissue to be cut.Then, slide bar continues to move to far-end from the proximal end of cartridge housing, make identical being organized in to be cut reach required grip thickness between nail anvil and the nail bin, simultaneously, slide bar promotes the ejector pin slide plate and moves in the push broach groove of cartridge housing, and the ejector pin slide plate relies on the inclined-plane to promote the ejector pin piece and anastomosis staple released in the nail groove when mobile in the ejector pin hole; Anastomosis staple is pushed out in the nail bin and penetrates clamped to be cut identical tissue and direct reach anastomosis staple grooving on the nail anvil, makes the U-shaped anastomosis staple bend to B shape, reaches the operation purpose of will tissue coincideing; The clamped to be cut identical tissue of cutter cutting at slide bar place reaches the operation purpose with the tissue cutting.Finish cutting and coincide after the operation, slide bar moves to the proximal end from the far-end of carrying out frame, drives the relative nail bin of nail anvil and enters opening from closure state, unclamps and cutting the tissue that coincide, so that withdraw from chamber mirror surgical cutting anastomat.When using chamber mirror surgical cutting anastomat, need repeatedly make the relative nail bin closure or openness of nail anvil, so that accurately clamping anastomotic button to be cut is knitted.The dissatisfied place of making us of the chamber mirror surgical cutting anastomat of this style is, the edge of nail anvil and carry out between the joint portion of frame and have the gap, and when nail anvil opened and closed, this gap may press from both sides the identical organ-tissue of non-cutting around the scratch evil Executive Head.Another of the chamber mirror surgical cutting anastomat of this style makes us dissatisfied place and is, when slide bar is positioned at the stepped place of nail anvil near-end, slide bar and nail anvil disengage, nail anvil rotates under the effect of spring and enters opening, since this moment unborn under spring action slide bar and the force-closed pop-off between the nail anvil, therefore the nail anvil bounce of the identical organ-tissue of Executive Head non-cutting on every side can occur to injure, and this nail anvil bounce also influences the accurate adjusting that nail anvil is opened and closed angle.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of chamber mirror surgical cutting anastomat that has the elasticity neck ring is provided, it can prevent that the edge of nail anvil near-end from pressing from both sides the organ-tissue that the non-cutting on every side of scratch evil Executive Head coincide in opening-closing process; Appearance can injure the bounce of the identical organ-tissue of Executive Head non-cutting on every side in the time of can also preventing the nail anvil rotation.
The technical scheme that realizes above-mentioned purpose is: a kind of chamber mirror surgical cutting anastomat that has the elasticity neck ring comprises the extension of anastomat body, Executive Head, connection anastomat body and Executive Head, the operating mechanism of control Executive Head action; Executive Head is formed by carrying out frame, slide bar, nail bin and nail anvil, and slide bar, nail bin and nail anvil are installed in to be carried out on the frame, and nail anvil can rotate relative to nail bin; Periphery at the near-end of carrying out frame is enclosed with the elasticity neck ring, and the edge of described nail anvil near-end is close at the edge of described elasticity neck ring far-end; When nail anvil turns to relative nail bin when being opening, elasticity neck ring generation strain under the compressing of nail anvil, the edge of elasticity neck ring far-end keeps being close to the edge of nail anvil near-end; When nail anvil turns to relative nail bin when being closure state, the edge of elasticity neck ring far-end recovers to be close to the state at the edge of nail anvil near-end.
Carry out the straight shape chute that has on the frame from the proximal extension to the far-end, chute from the proximal extension to the far-end is arranged on the nail anvil, the chute of nail anvil is at the curved chute of near-end, other positions are straight shape chute, the upper end of slide bar has upper protruding block, the lower end has lower protruding block, upper protruding block inserts in the chute of nail anvil, lower protruding block inserts in the straight shape chute of carrying out frame, when described slide bar is positioned at the proximal end of described execution frame, the upper protruding block of slide bar upper end is pressed on the arc chute of described nail anvil near-end, the lower protruding block of lower end is pressed on the straight shape chute of carrying out frame, makes the described relatively nail bin of nail anvil be opening; When slide bar begins when far-end moves from the proximal end of carrying out frame, the upper protruding block of slide bar upper end moves on the straight shape chute of execution frame at lower protruding block mobile on the arc chute of nail anvil near-end, the lower end, driving nail anvil rotates to reduce the opening angle of the relative nail bin of nail anvil, elasticity neck ring generation strain under the compressing of nail anvil; When slide bar continues when far-end moves from the proximal end of carrying out frame, the upper protruding block of slide bar upper end moves to the straight shape chute place of nail anvil, the lower protruding block of lower end is pressed on the straight shape chute of carrying out frame, the drive nail anvil turns to relative nail bin and is closure state, makes to reach required grip thickness between nail anvil and the nail bin.
The near-end of carrying out frame has projection, and the elasticity neck ring is between the near-end and projection of described nail anvil.
Between extension and the Executive Head joint is installed.
Nail bit and carrying out between the frame with pivotally connected.
After adopting technique scheme, the chamber mirror surgical cutting anastomat that has the elasticity neck ring of the present invention turns to relative nail bin at nail anvil and is in the process of opening or closure state, on the one hand, the edge of elasticity neck ring far-end remains the edge that is close to the nail anvil near-end, can reach the edge that prevents the nail anvil near-end presss from both sides the identical organ-tissue of scratch evil Executive Head non-cutting on every side in opening-closing process technique effect; On the other hand, the elasticity neck ring has form force-closed effect when nail anvil rotates, both can reach the technique effect that appearance when preventing that nail anvil from rotating can injure the bounce of the organ-tissue that non-cutting coincide around the Executive Head, can reach the technique effect that nail anvil is opened and closed the accurate adjusting of angle again; In addition, adopt the elasticity neck ring can substitute the spring part that acts in the Executive Head of existing chamber mirror surgical cutting anastomat on the nail anvil, can reach the processing and the difficulty of assembling and the technique effect of product cost that reduce each part in the Executive Head of elongate body that diameter is 12mm to 13mm.
Description of drawings
Fig. 1 is the perspective view of the joint of the chamber mirror surgical cutting anastomat that has the elasticity neck ring of the expression embodiment of the invention when opening between nail bin and the nail anvil when not rotating;
Fig. 2 is the perspective view of the joint of the chamber mirror surgical cutting anastomat of presentation graphs 1 when opening between nail bin and the nail anvil when rotating;
Fig. 3 is that anastomat body, extension and the operating mechanism of the chamber mirror surgical cutting anastomat of presentation graphs 1 is removed the perspective view of opening the place between back nail bin of Executive Head and the nail anvil;
Fig. 4 is the anastomat body, extension of the chamber mirror surgical cutting anastomat of presentation graphs 1 and is removed perspective view when opening between the nail bin of back Executive Head and the nail anvil as mechanism;
Fig. 5 is that anastomat body, extension and the operating mechanism of the chamber mirror surgical cutting anastomat of presentation graphs 1 is removed the perspective view when closed between back nail bin of Executive Head and the nail anvil;
Fig. 6 is the perspective view that anastomat body, extension and the operating mechanism of the chamber mirror surgical cutting anastomat of presentation graphs 1 is removed the back side of back Executive Head;
Fig. 7 is the perspective view after the nail bin of the chamber mirror surgical cutting anastomat of presentation graphs 1 is removed;
Fig. 8 is the perspective view after the end cover of nail bin of the chamber mirror surgical cutting anastomat of presentation graphs 1 is removed;
Fig. 9 is the perspective view that the interior slide bar of the Executive Head of presentation graphs 1 promotes cutter, ejector pin piece, ejector pin slide plate and anastomosis staple;
Figure 10 is the interior perspective view of slide bar before promoting cutter, ejector pin piece, ejector pin slide plate and anastomosis staple of the Executive Head of presentation graphs 1;
Figure 11 is whole blades of the cutter in the nail bin of presentation graphs 1 cutter and have the explosive view of the insert block groupware of arc chute when being positioned at the push broach groove of cartridge housing;
Figure 12 is the blade of the cutter in the nail bin of presentation graphs 1 cutter and the explosive view that has the insert block groupware of arc chute when stretching out in the push broach groove of cartridge housing;
Figure 13 is the enlarged diagram at the back side of the nail bin of presentation graphs 1;
Figure 14 is the enlarged diagram of the execution frame of presentation graphs 1;
Figure 15 is the enlarged diagram of the nail anvil of presentation graphs 1;
Figure 16 is that the neck ring of the Executive Head of presentation graphs 4 is removed the perspective view when opening between back nail bin and the nail anvil;
Figure 17 is that the neck ring of the Executive Head of presentation graphs 5 is removed the perspective view when closed between back nail bin and the nail anvil.
The specific embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
As shown in Figure 1, 2, a kind of chamber mirror surgical cutting anastomat that has the elasticity neck ring comprises the extension 4 of anastomat body 5, Executive Head, connection anastomat body 5 and Executive Head, the operating mechanism of control Executive Head action; Executive Head is formed by carrying out frame 7, slide bar 8, nail bin 9 and nail anvil 10, and slide bar 8, nail bin 9 and nail anvil 10 are installed in to be carried out on the frame 7, and nail anvil 10 can rotate relative to nail bin 9; Periphery at the near-end of carrying out frame is enclosed with elasticity neck ring 22, and the edge of described nail anvil 10 near-ends is close at the edge of described elasticity neck ring 22 far-ends; When nail anvil 10 turns to relative nail bin 9 when being opening, strains take place in elasticity neck ring 22 under the compressing of nail anvil 10, and the edge 23 of elasticity neck ring 22 far-ends keeps being close to the edge 24 of nail anvil near-end; When nail anvil 10 turns to relative nail bin 9 when being closure state, the edge 23 of elasticity neck ring 22 far-ends recovers to be close to the state at the edge 24 of nail anvil 10 near-ends.
Shown in Fig. 7~10, nail bin 9 is made up of cartridge housing 11, ejector pin piece 12, ejector pin slide plate 13 and anastomosis staple 14.Nail groove 15, ejector pin hole 16, skateboards slot 17 and push broach groove 18 are arranged in the cartridge housing 11.Anastomosis staple 14 is installed in the nail groove 15.Ejector pin piece 12 is installed in the ejector pin hole 16.Ejector pin slide plate 13 is installed in the skateboards slot 17.The nail groove 15 of cartridge housing 11 and ejector pin hole 16 are arranged in the both sides of push broach groove 18 and respectively arrange three rows.Have on the end face of nail anvil 10 the anastomosis staple grooving 19 corresponding with anastomosis staple 14 positions in the nail bin 9 and with cartridge housing 11 in push broach groove 18 position corresponding cutting grooves 20.Three rows are respectively arranged in the both sides of the corresponding cutting groove 20 at nail anvil 10 of the anastomosis staple grooving 19 of nail anvil 10.
Shown in Fig. 7~10, in the push broach groove 18 of cartridge housing 11 cutter 21 are installed.When slide bar 8 from the proximal end of cartridge housing 11 when far-end moves, slide bar 8 promotes cutter 21 and ejector pin slide plate 13 is mobile the push broach groove 18 of cartridge housing 11 in.Ejector pin slide plate 13 rely on inclined-planes promote ejector pin pieces 12 ejector pin hole 16 in when mobile with anastomosis staple 14 release in the nail groove 15.
Shown in Fig. 1~6, the periphery of carrying out the near-end of frame 7 is enclosed with elasticity neck ring 22, and the edge 24 of nail anvil 10 near-ends is close at the edge 23 of elasticity neck ring 22 far-ends.When nail anvil 10 turns to relative nail bin 9 when being opening, strains take place in elasticity neck ring 22 under the compressing of nail anvil 10, and the edge 23 of elasticity neck ring 22 far-ends keeps being close to the edge 24 of nail anvil 10 near-ends.When nail anvil 10 turns to relative nail bin 9 when being closure state, the edge 23 of elasticity neck ring 22 far-ends recovers to be close to the state at the edge 24 of nail anvil 10 near-ends.
As Fig. 8~12,16, shown in 17, carry out the straight shape chute 25 that has on the frame 7 from the proximal extension to the far-end, chute 26 from the proximal extension to the far-end is arranged on the nail anvil 10, the chute 26 of nail anvil (10) is at the curved chute 27 of near-end, other positions are straight shape chute 28, the upper end of slide bar 8 has upper protruding block 29, the lower end has lower protruding block 30, upper protruding block 29 inserts in the chute 26 of nail anvil 10, lower protruding block 30 inserts in the straight shape chute 25 of carrying out frame 7, when described slide bar 8 is positioned at the proximal end of described execution frame 7, the upper protruding block 29 of slide bar 8 upper ends is pressed on the arc chute 26 of described nail anvil 10 near-ends, the lower protruding block 30 of lower end is pressed on the straight shape chute 25 of carrying out frame 7, makes the described relatively nail bin 9 of nail anvil 10 be opening; When slide bar 8 begins when far-end moves from the proximal end of carrying out frame 7, the upper protruding block 29 of slide bar 8 upper ends moves on the straight shape chute 25 of execution frame 7 at lower protruding block 30 mobile on the arc chute 27 of nail anvil 10 near-ends, the lower end, drive nail anvil 10 and rotate to reduce the opening angle of nail anvil 10 relative nail bins 9, strain takes place in elasticity neck ring 22 under the compressing of nail anvil 10; When slide bar 8 continues when far-end moves from the proximal end of carrying out frame 7, the upper protruding block of slide bar 8 upper ends moves to straight shape chute 28 places of nail anvil 10, the lower protruding block 30 of lower end is pressed on the straight shape chute 25 of carrying out frame 7, drive nail anvil 10 turns to relative nail bin 9 and is closure state, makes between nail anvil 10 and the nail bin 9 to reach required grip thickness.
Shown in Fig. 3,4, the near-end of carrying out frame 7 has projection 31, and elasticity neck ring 22 is between the near-end and projection 31 of described nail anvil 10.
As shown in Figure 1, 2, joint 3 is installed between extension 4 and the Executive Head.
Shown in Fig. 4,5,6, nail bit 10 and carrying out between the frame 7 with pivotally connected.
The chamber mirror surgical cutting anastomat that has the elasticity neck ring of the present invention turns to relative nail bin 9 at nail anvil 10 and is in the process of opening or closure state, on the one hand, the edge 23 of elasticity neck ring 22 far-ends remains the edge 24 that is close to nail anvil 10 near-ends, can reach the edge 24 that prevents nail anvil 10 near-ends presss from both sides the identical organ-tissue of scratch evil Executive Head 2 non-cuttings on every side in opening-closing process technique effect; On the other hand, elasticity neck ring 22 has form force-closed effect when nail anvil 10 rotates, both can reach the technique effect that appearance when preventing that nail anvil 10 from rotating can injure the bounce of the organ-tissue that non-cuttings coincide around the Executive Head 2, can reach the technique effect that nail anvil is opened and closed the accurate adjusting of angle again; In addition, adopt elasticity neck ring 22 can substitute the spring part that acts in the Executive Head of existing chamber mirror surgical cutting anastomat on the nail anvil, can reach the processing and the difficulty of assembling and the technique effect of product cost that reduce each part in the Executive Head of elongate body that diameter is 12mm to 13mm.
The foregoing description only is the typical best form of implementation of the present patent application, can do some to said structure and change also without prejudice to the spirit and scope of the present invention.The present invention does not limit to or is placed restrictions on the detail of being stated in here, is conspicuous any improvement or remodeling and should keep affiliated field secondary technology personnel.
What need supplementary notes is: term herein " near-end " is meant the end of chamber mirror surgical cutting anastomat near the operator, and term " far-end " is meant the end of chamber mirror surgical cutting anastomat away from the operator.