CN105796146A - Nail head assembly and endoscope cutting stapling device with same - Google Patents
Nail head assembly and endoscope cutting stapling device with same Download PDFInfo
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- CN105796146A CN105796146A CN201410850323.XA CN201410850323A CN105796146A CN 105796146 A CN105796146 A CN 105796146A CN 201410850323 A CN201410850323 A CN 201410850323A CN 105796146 A CN105796146 A CN 105796146A
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- nail
- cutting knife
- runner
- sliding shoe
- connecting rod
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Abstract
The invention provides a nail head assembly used for an endoscope cutting stapling device. The nail head assembly comprises a nail cabin frame, a nail anvil, a cutter, a cutter pushing rod and an auxiliary closing assembly, wherein the nail cabin frame is used for accommodating a dismountable nail cabin; the nail anvil is matched with the nail cabin for stitching cut tissues; the cutter is used for breaking the cut tissues to be stitched; the cutter pushing rod is used for driving the cutter to move; the auxiliary closing assembly is movably arranged in the nail cabin, and comprises a slide block, a connecting rod and a rotating wheel; the rotating wheel is pivoted on the nail cabin frame and can rotate relative to the nail cabin frame; the two ends of the connecting rod are pivoted with the slide block and the rotating wheel; and the auxiliary closing assembly can provide support force on the near end of the nail anvil through being driven by the cutter, and completes the resetting through being driven by the cutter. Meanwhile, the invention also provides the endoscope cutting stapling device comprising the nail head assembly. By using the nail head assembly, the stress of the cutter is effectively reduced during the cutting and stitching; the clamping force of the nail anvil and the nail cabin on the cut tissues to be stitched is improved; the cutter fracture is avoided; and the operation risk is reduced.
Description
Technical field
The present invention relates to a kind of surgical operation medical apparatus and instruments, relate in particular to a kind of nail-head component and there is the chamber mirror Endo-GIA of this nail-head component.
Background technology
Surgical operation seaming and cutting device has been widely used for the stitching of wound, the stitching of interior tissue and cutting, currently also has been developed for being applicable to the operating Endo-GIA of chamber mirror.Chamber mirror surgery, also referred to as laparoscopic surgery, it is replace naked eyes direct-view with electron mirror picture, replace finger with elongated implement, makes every effort to, under the stress that minimum kerf path, minimum tissue injury, human body are the lightest, complete the observation to internal lesions, diagnosis, cutting, stitching and other treatment.The nail-head component part of this Endo-GIA generally includes nail-anvil assembly, nail bin groupware, cutter assembly, nail-anvil assembly includes its surface and is provided with the nail anvil of nail forming tank, nail bin groupware includes nail bin frame and the nail bin being placed in nail bin frame, nail bin includes anastomosis staple and for releasing the percussion block of anastomosis staple, and cutter assembly includes cutting knife (being generally I shape cutter) and is connected to the push broach bar of cutting knife far-end.During use, first promote push broach bar to move a certain distance from proximate, make cutting knife be undertaken nail-anvil assembly and nail bin groupware closing to clamp cutting tissue to be stapled, continue to press on push broach bar and drive cutting knife and percussion block that cutting tissue to be stapled is carried out detachment and sewed up.
The nail-anvil assembly of existing Endo-GIA and nail bin groupware opening each other is to oppress what the near-end of nail anvil realized near the near-end of nail bin frame by arranging shell fragment at nail-anvil assembly near-end, when push broach bar promotes cutting knife to move to far-end, under the drive of cutting knife, the far-end of nail anvil moves to the direction of nail bin groupware, until nail-anvil assembly and nail bin groupware Guan Bi are to clamp cutting tissue to be stapled, meanwhile, nail anvil near-end lifts gradually.
But in use there are some problems in existing Endo-GIA, time as thicker in cutting tissue to be stapled, when promoting push broach bar to move forward, apply very big power, and thicker being organized in is cut and in the process of stitching, understand the counteracting force that open very big to nail-anvil assembly and nail bin groupware, cutting knife is caused to be easily broken off, the clamping effect of tissue is died down by nail-anvil assembly and nail bin groupware simultaneously, cutting tissue to be stapled is also easily separated from nail anvil and the clamping of nail bin frame, thus make troubles to doctor's operation, also can bring very big risk to operation.
Summary of the invention
It is an object of the invention to provide a kind of nail-head component for chamber mirror Endo-GIA and there is the chamber mirror Endo-GIA of this nail-head component, cutting knife stress can be reduced, avoid cutting knife to rupture, improve the clamping effect of Endo-GIA, improve doctor's simple operation.
Nail-head component provided by the invention, including: nail bin frame, it is used for housing dismountable nail bin；Nail anvil, coordinates stitching cutting tissue with described nail bin；Cutting knife, for detachment cutting tissue to be stapled；Push broach bar, is used for driving described cutting knife to move；Described nail-head component also includes an auxiliary closing assembly, is movably arranged in described nail bin frame, and described auxiliary closing assembly includes: sliding shoe, connecting rod and runner；Described runner is articulated on described nail bin frame and can rotate relative to nail bin frame, sliding shoe and described runner described in the pivot joint respectively of the two ends of described connecting rod；
Wherein, when described push broach bar drives described cutting knife distal movement, described cutting knife can drive described runner to rotate and pass through described connecting rod and drive described sliding shoe, makes described sliding shoe move the lower section to described nail anvil near-end；
When described cutting knife proximal movement resets, described cutting knife can drive described sliding shoe to move proximally to reset, and drives the reversion of described runner to reset by connecting rod.
Further, described cutting knife is provided with Driving plane, proximal end face and driver slot；Described Driving plane is positioned at the near-end upper limb of described driver slot, and described proximal end face is positioned at the lower section outer rim of described driver slot.
Further, one end of described connecting rod is provided with the first pin-and-hole, and its other end is provided with the second pin-and-hole；
Described sliding shoe is provided with to be had the main body of upper surface, the first bearing pin and has the abutting part of distal face；First pin-and-hole of described first bearing pin and connecting rod matches, and the distal face of described abutting part can match for sliding shoe is resetted with the proximal end face of described cutting knife.
Further, described runner is provided with the second bearing pin, drives axle, the first side wheel, the second side wheel；Described second bearing pin matches with the second pin-and-hole of described connecting rod, and the end lateral out of described first side wheel and the second side wheel is articulated on nail bin frame, is connected by described driving axle between described first side wheel and the lateral inner ends portion of the second side wheel；
Wherein, when described push broach bar drives described cutting knife distal movement, the Driving plane of described cutting knife matches with the driving axle of described runner and makes described runner rotate, and drives described sliding shoe by described connecting rod, makes the upper surface of the main body of described sliding shoe move to described nail anvil near-end；After described runner rotates to an angle, the driving axle in the vertical direction of the Driving plane of described cutting knife and described runner misplaces so that described cutting knife separates with described runner, and described runner stops the rotation, and described cutting knife continues distal movement；
When described cutting knife proximal movement resets, the proximal end face of described cutting knife contacts with the distal face of described sliding shoe, promotes described sliding shoe to move proximally to reset, and drives runner reset reversion by connecting rod.
Further, in an initial condition, described driving axle is placed in the driver slot of described cutting knife.
Further, the second bearing pin of described runner is positioned on described second side wheel and the axis direction of the second bearing pin is parallel to the horizontal direction of nail bin frame；Second side wheel has the accommodation space holding the second bearing pin and connecting rod, and when runner rotates, this accommodation space can for the connecting rod rotation offer pivot spaces around the second bearing pin.
Further, the side deviating from the second bearing pin of described driving axle is provided with escape groove, with the structure of the driver slot bottom of accommodating described cutting knife.
Further, the driving shaft section of described runner is D font, triangle, circle, rectangle, square or irregularly shaped.
Further, being parallel to described nail bin frame bottom surface and be perpendicular in described sliding shoe axially direction, the first bearing pin of described sliding shoe and abutting part are arranged in the far-end of described main body alternately.
Further, the proximal of described sliding shoe is provided with guide part, and described guide part is from the proximal extension of described sliding shoe main body guide pad out or is arranged at the gathering sill on described sliding shoe.
Further, the axis of described guide part, described abutting part and described runner, described cutting knife substantially overlaps, and described connecting rod is offset to this side, axis abreast.
Further, described cutting knife is cross section is the I-shaped cutter of I shape, and along with described push broach bar promotes described cutting knife distal movement, the far-end of described nail anvil closes gradually under the effect of described cutting knife, and the near-end of described nail anvil lifts gradually.
Further, runner described in described cutter driving is until in the process that separates with described runner, the maximum anglec of rotation of described runner is more than 45 degree, less than 150 degree.
Present invention simultaneously provides a kind of chamber mirror Endo-GIA, including above-mentioned nail-head component.
Compared with prior art, the nail-head component of the present invention and there is the chamber mirror Endo-GIA of this nail-head component at least have the advantages that by using auxiliary closing assembly in nail-head component, cutting knife stress is effectively reduced when cutting, improve nail anvil and the nail bin chucking power to cutting tissue to be stapled, avoid cutting knife to rupture, reduce operation risk.
Accompanying drawing explanation
Fig. 1 is the nail-head component decomposing schematic representation of the Endo-GIA of the present invention；
Fig. 2 is the part-structure schematic diagram of nail-head component of the present invention；
Fig. 3 is the top view in Fig. 2 after Standard；
Fig. 4 is the top view after nail-head component of the present invention assembling；
Fig. 5 A is the sectional view in Fig. 4 along line A-A；
Fig. 5 B is the sectional view in Fig. 4 along line B-B；
Fig. 6 is the sectional view in Fig. 5 A along line C-C；
Fig. 7 A is the enlarged drawing in Fig. 5 A under D part original state；
Fig. 7 B is the enlarged drawing in Fig. 5 B under E part original state；
Fig. 8 A is the enlarged drawing in Fig. 5 A under D part the second state；
Fig. 8 B is the enlarged drawing in Fig. 5 B under E part the second state；
Fig. 9 A is the enlarged drawing in Fig. 5 A under the D part third state；
Fig. 9 B is the enlarged drawing in Fig. 5 B under the E part third state；
Figure 10 A is the enlarged drawing in Fig. 5 A under D part the 4th state；
Figure 10 B is the enlarged drawing in Fig. 5 B under E part the 4th state；
Figure 11 is enlarged drawing during D partial reset in Fig. 5 A；
Wherein, description of reference numerals is as follows:
1: the nail-head component of Endo-GIA
10: sliding shoe
101: main body 101a: upper surface
102: the first bearing pins 103: abutting part
103a: distal face 104: guide part
20: connecting rod
201: the first pin-and-hole 202: the second pin-and-holes
30: runner；
301: the second bearing pins 302: drive axle
303: the first side wheel 304: the second side wheels
305: escape groove
40: cutting knife
401: Driving plane 402: proximal end face
403: driver slot
50: push broach bar 60: nail anvil
70: nail bin frame 701: gathering sill
D, E: partial structurtes
Detailed description of the invention
It is described more fully with example embodiment referring now to accompanying drawing.But, example embodiment can be implemented in a variety of forms, and is not understood as limited to embodiment set forth herein；On the contrary, it is provided that these embodiments make the present invention more comprehensively and completely, and the design of example embodiment is conveyed to those skilled in the art all sidedly.Accompanying drawing labelling identical in the drawings represents same or similar structure, thus will omit repetition thereof.
Described by the present invention proximally and distally, being all using exercises on apparatus author as reference, be near-end near one end of operator, the one end away from operator is far-end.Axially refer to the distal-to-proximal length direction of apparatus, laterally refer to the direction being perpendicular to axially and being parallel to nail bin frame bottom surface, radially refer to the direction being perpendicular to axially and being perpendicular to nail bin frame bottom surface.Top/upper and lower in the present invention/under, vertically, two ends, horizontal direction, clockwise, reversion etc. be the explanation carried out for accompanying drawing to the description in direction or position; but can also making a change as required, done change is all contained in scope.Additionally, term first, second, third, fourth grade is only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.
As it is shown in figure 1, the present invention provides a kind of nail-head component 1 that can be used for chamber mirror Endo-GIA, including nail bin frame 70, nail anvil 60, cutting knife 40, push broach bar 50 and auxiliary closing assembly.
Nail bin frame 70 is used for housing dismountable nail bin (not shown)；Nail anvil 60 is provided with and nail bin puts nail and the corresponding nail forming tank of the anastomosis staple of putting in nail, for sewing up the tissue of cutting to be stapled；Cutting knife 40, for detachment cutting tissue to be stapled, includes but not limited to that cross section is the I-shaped cutter of I shape；Push broach bar 50 is used for driving cutting knife 40 to move and closes cutting tissue to be stapled with folder, can implement the cutting to cutting tissue to be stapled and stitching simultaneously；Auxiliary closing assembly is movably arranged in nail bin frame 70, including: sliding shoe 10, connecting rod 20 and runner 30, runner 30 is articulated on nail bin frame 70 and can rotate to an angle relative to nail bin frame 70, as being rotated in a clockwise direction 30～120 degree, the two ends of connecting rod 20 are pivot joint sliding shoe 10 and runner 30 respectively.
When push broach bar 50 drives cutting knife 40 distal movement, cutting knife 40 can drive runner 30 to rotate to an angle and pass through connecting rod 20 and drive sliding shoe 10 to move, make sliding shoe 10 be movable to the lower section of nail anvil 60 near-end, the near-end of nail anvil 60 is played a supporting role, the Guan Bi of auxiliary nail anvil 60；Along with push broach bar 50 drives cutting knife 40 to continue distal movement, cutting knife 40 separates with runner 30, and runner 30 stops the rotation, and cutting knife 40 still distal movement is until anastomat completes the cutting to tissue and stitching；After this anastomat completes the cutting to tissue and sews up, when pulling cutting knife 40 to be resetted by far-end proximal movement, the near-end of cutting knife 40 can drive the far-end of sliding shoe 10 to make sliding shoe 10 move proximally to and reset, and sliding shoe 10 drives runner 30 reversely rotate and reset by connecting rod 20 simultaneously.
As shown in Figures 2 and 3, in the nail-head component 1 of Endo-GIA, the near-end of cutting knife 40 can be further provided with Driving plane 401, proximal end face 402 and driver slot 403.Driving plane 401 is positioned at the upper limb of driver slot 403 near-end, and the end face of driver slot 403 can be substantially the triangle with fillet, trapezoidal or other are irregularly shaped, and is provided with breach, and proximal end face 402 can be located at outer rim place below the breach of driver slot 403.
Connecting rod 20 proximally and distally can be further provided with the first pin-and-hole 201 and the second pin-and-hole 202, it is preferred to circular hole.
Sliding shoe 10 can be further provided with to be had main body 101, first bearing pin 102 of upper surface 101a, has the abutting part 103 of distal face 103a, it is being parallel to described nail bin frame 70 bottom surface and is being perpendicular in described sliding shoe 10 axially direction, the first bearing pin 102 and the abutting part 103 interlaced arrangement far-end in main body 101.First pin-and-hole 201 of the first bearing pin 102 and connecting rod 20 matches, and the first bearing pin 102 is preferably straight pin, and so, connecting rod 20 can pivot around the first bearing pin 102 in the horizontal side of abutting part 103, and namely the motion of connecting rod 20 will not be produced to interfere by abutting part 103.The upper surface 101a of main body 101 is when sliding shoe 10 moves the lower section to nail anvil 60 near-end, and this upper surface 101a supports the near-end of nail anvil 60 and applies certain support force to the near-end of nail anvil 60, to assist the Guan Bi of nail anvil 60；When pulling cutting knife 40 to be resetted by far-end proximal movement, distal face 103a can match for driving sliding shoe 10 to move proximally to reset with the proximal end face 402 of cutting knife 40.
Main body 101 near-end of sliding shoe 10 is also provided with guide part 104, and as shown in Figure 2 and Figure 6, guide part 104 can be the proximal extension guide pad out of the main body 101 from sliding shoe 10, correspondingly, nail bin frame 70 can be provided with the gathering sill 701 being matched therewith；As another alternate embodiment, guide part 104 can also be provided in the gathering sill on sliding shoe 10, correspondingly, nail bin frame 70 can be provided with the guide pad (not shown) being matched therewith.Limit the mobile route of sliding shoe 10 by limiting the mobile route of guide part 104, be conducive to sliding shoe 10 move along the route set and reset.As can be seen from Fig. 3, the axis of guide part 104, abutting part 103 and runner 30, cutting knife 40 substantially overlaps, and connecting rod 20 is offset to this side, axis abreast.
Runner 30 can be further provided with the second bearing pin 301, drive axle the 302, first side wheel the 303, second side wheel 304.The end lateral out of the first side wheel 303 and the second side wheel 304 is articulated on nail bin frame 70 so that runner 30 can rotate by nail bin frame 70 relatively；By driving axle 302 to connect between first side wheel 303 and the lateral inner ends portion of the second side wheel 304.Axle 302 is driven to be placed in the driver slot 403 of cutting knife 40 rotationally, when cutting knife 40 distal movement under the effect of push broach bar 50, the Driving plane 401 of cutting knife 40 can drive driving axle 302 to move, owing to runner 30 is articulated on nail bin frame 70 by the first side wheel 303 and the second side wheel 304, therefore, axle 302 is driven to rotate relative to nail bin frame 70 under the driving of the Driving plane 401 of cutting knife 40, meanwhile, drive axle 302 to drive runner 30 integral-rotation, and drive sliding shoe 10 distally to move by connecting rod 20 further.Preferably, under original state, namely the nail-head component 1 of Endo-GIA is in and treats cock, the proximal end face 402 of cutting knife 40 is positioned at the near-end of nail bin frame 70, drives axle 302 to be placed in the driver slot 403 of cutting knife 40, but Driving plane 401 does not contact with driving axle 302, and have certain distance, certainly, Driving plane 401 can also contact with driving axle 302, but there is no therebetween interaction force.In the present invention, drive the cross section of axle 302 such as to could be arranged to D font, triangle, circle, rectangle, square, irregularly shaped etc., the present invention is not limited.Second bearing pin 301 is positioned on the second side wheel 304 and the axis direction of the second bearing pin 301 is parallel to the horizontal direction of nail bin frame 70, with the integral-rotation of runner 30, corresponding sports can occur.Second bearing pin 301 matches with the second pin-and-hole 202 of connecting rod 20, it is preferred to straight pin, by above-mentioned cooperation, sliding shoe 10 is connected with runner 30；Second side wheel 304 has the accommodation space holding the second bearing pin 301 and connecting rod 20, and when runner 30 rotates, and this accommodation space can rotate, around the second bearing pin 301, the pivot spaces providing enough for connecting rod 20；In the present embodiment, as in figure 2 it is shown, this accommodation space is connect the second bearing pin 301 and the tangent plane perpendicular with the axis direction of the second bearing pin 301.As another interchangeable embodiment, this accommodation space can also be connect the second bearing pin 301 and can provide the groove (not shown) of installing space and pivot spaces for connecting rod 20.
Drive the side (driving below axle 302 in Fig. 2) that axle 302 deviates from the second bearing pin 301 that an escape groove 305 can be set further, structure with the abutting part 103 of accommodating sliding shoe 10 or cutting knife 40 driver slot 403 bottom, when runner 30 rotates and drives sliding shoe 10 to move to far-end, or during the reset of cutting knife 40 proximal movement, the structure of the abutting part 103 of sliding shoe 10 and driver slot 403 bottom of cutting knife 40 may pass through escape groove 305, to avoid the constructive interference of abutting part 103 and driver slot 403 bottom to drive the motion of axle 302.
In the present embodiment, when push broach bar 50 drives cutting knife 40 distal movement, the Driving plane 401 of cutting knife 40 matches to merge with the driving axle 302 of runner 30 and makes runner 30 rotate to an angle, the maximum anglec of rotation as along clockwise direction is approximately 45 degree～150 degree, the maximum rotation of runner 30 130 degree in the present embodiment, and drive sliding shoe 10 to slide to far-end by connecting rod 20, make the upper surface 101a of the main body 101 of sliding shoe 10 move to nail anvil 60 near-end gradually.Specifically, Driving plane 401 drives and drives axle 302 to make runner 30 be rotated in a clockwise direction, and the second bearing pin 301 drives sliding shoe 10 to move to far-end by connecting rod 20 simultaneously, and the upper surface 101a of sliding shoe 10 moves the lower section to nail anvil 60 near-end gradually.In the process, driver slot 403 substructure of cutting knife 40 moves towards far-end gradually and exits the escape groove 305 of runner 30, and the abutting part 103 of sliding shoe 10 moves close to the escape groove 305 of runner 30 gradually towards far-end.As another interchangeable embodiment, arranging position according to cutter driving end face 401 on the driver slot 403 of cutting knife 40, when being arranged on the lower inner edge of driver slot 403 near-end such as Driving plane 401, can also there is rotation counterclockwise in runner 30.
Under the drive of the Driving plane 401 of cutting knife 40, axle 302 is driven to rotate relative to nail bin frame 70, the Driving plane 401 of cutting knife 40 misplaces gradually with driving axle 302 in the vertical direction of runner 30, axle 302 is driven to be movable to the indentation, there of driver slot 403, now Driving plane 401 cannot continue to drive driving axle 302, and cutting knife 40 continues distal movement so that cutting knife 40 separates with runner 30, runner 30 stops the rotation, and cutting knife 40 continues distal movement until completing to sew up cutting.
When cutting knife 40 proximal movement resets, the proximal end face 402 of cutting knife 40 contacts with the distal face 103a of sliding shoe 10, promotes sliding shoe 10 to move proximally to reset, and drives runner 30 reversion to reset by connecting rod 20.In the process, the abutting part 103 of sliding shoe 10 moves towards near-end and gradually away from the escape groove 305 of runner 30, and in cutting knife 40, driver slot 403 substructure moves into the escape groove 305 of runner 30 gradually towards near-end.
Below in conjunction with Fig. 4～Figure 11, the use procedure of the nail-head component 1 of the present invention is described in detail.Under original state, nail anvil 60 is positioned at above nail bin frame 70, and the two is opened at an angle, and auxiliary closing assembly is arranged at the near-end of nail bin frame 70, the partial structurtes shown in D and E part in Fig. 5 A and Fig. 5 B.
As shown in figures 7 a and 7b, under original state, the Driving plane 401 of cutting knife 40 can not contact and have certain distance with the driving axle 302 of runner 30, and runner 30 will not rotate, and sliding shoe 10 is placed in the near-end of nail bin frame 70.Along with push broach bar 50 promotes cutting knife 40 distal movement, the far-end of nail anvil 60 closes gradually under the effect of cutting knife 40, and near-end lifts gradually.
As shown in Figure 8 A and 8 B, after cutting knife 40 moves a segment distance to far-end, the Driving plane 401 of cutting knife 40 and the driving axle 302 of runner 30 contact, and enter the second state.As shown in Figure 8 A, owing to cutting knife 40 is to the movement of far-end, the distal face 103a of sliding shoe 10 and the proximal end face 402 of cutting knife 40 have certain distance, now push broach bar 50 promote cutting knife 40 continue to far-end move time, Driving plane 401 drives and drives axle 302 to rotate clockwise, runner 30 starts to rotate under the drive driving axle 302, second bearing pin 301 drives sliding shoe 10 to move along the gathering sill 701 of nail bin frame 70 to far-end by connecting rod 20, nail anvil 60 closes gradually simultaneously, its near-end tilts further up, as shown in Figure 8 B；
Along with cutting knife 40 continues to move to far-end further, enter the third state as shown in fig. 9 a and fig. 9b, after the Driving plane 401 of cutting knife 40 promotes runner 30 to rotate to an angle again, under connecting rod 20 drives, sliding shoe 10 moves a segment distance to far-end again, and the upper surface 101a of sliding shoe 10 progresses into the lower section of nail anvil 60 near-end, the near-end of nail anvil 60 is played a supporting role, the Guan Bi of auxiliary nail anvil 60, simultaneously because the movement of sliding shoe 10, its distal face 103a substantially contacts with the proximal end face 402 of cutting knife 40；
When cutting knife 40 continues to move to far-end, enter the 4th state as shown in figs. 10 a and 10b, now runner 30 has rotated about 120 degree relative to original state, axle 302 is driven to rotate further, the Driving plane 401 of cutting knife 40 occurs in that dislocation with driving axle 302 in the vertical direction of runner 30, axle 302 is driven to move to the indentation, there of driver slot 403 and separate with driver slot 403 gradually, now cutting knife 40 just cannot continue to press on runner 30 and rotates, but cutting knife 40 can continue to move to far-end to fire, complete to sew up cutting.Meanwhile, the spacing of the distal face 103a of sliding shoe 10 and the proximal end face 402 of cutting knife 40 increases, and again separates, and runner 30 is slack under this angle, and sliding shoe 10 also moves to reach range to far-end and stops mobile simultaneously.Sewing up in cutting process at cutting knife 40, during especially for thickness tissue, the near-end of nail anvil 60 is played a supporting role by the upper surface 101a of sliding shoe 10, the Guan Bi of auxiliary nail anvil 60, increases chucking power, reduces the stress of cutting knife 40.
As shown in figure 11, after apparatus percussion terminates, pull in the process that cutting knife 40 proximally resets, first the proximal end face 402 of cutting knife 40 touches the distal face 103a of sliding shoe 10, as shown in figure 11 so that sliding shoe 10 moves proximally to reset, and drives runner 30 reversely to pivot under the effect of connecting rod 20, the axle 302 that drives of last runner 30 enters the operating position under original state by the breach of driver slot 403, completes the reset of runner 30.
In the present invention, when cutting knife 40 distal movement, Driving plane 401 can drive runner 30 to rotate and drive sliding shoe 10 to move to far-end, until runner 30 stops the rotation and separates with cutting knife 40 after sliding shoe 10 arrives the position supporting nail anvil 60；After percussion completes, when retracting cutting knife 40, the proximal end face 402 of cutting knife 40 can drive again sliding shoe 10 and runner 30 to reset, and realizes auxiliary Guan Bi nail anvil by apparatus above, reduces cutting knife 40 stress, reduce operation risk.
The nail-head component 1 of the Endo-GIA of the present invention can be used for, in the products such as chamber mirror Endo-GIA and the linear incision anastomat of different size and type, including but not limited to the anastomat that Cutting Length is 55mm, 60mm, 75mm, 80mm, 100mm, 120mm, 150mm.
More than being particularly shown and described the illustrative embodiments of the nail-head component of Endo-GIA of the present invention, the structure in embodiment etc. can make various change according to actual needs, and above change is encompassed by claims.It should be understood that the invention is not restricted to disclosed embodiment, on the contrary, it is intended to contain the various amendments and equivalent replacement that are included in claims protection domain.
Claims (14)
1. for a nail-head component for chamber mirror Endo-GIA, including:
Nail bin frame, is used for housing dismountable nail bin；
Nail anvil, coordinates stitching cutting tissue with described nail bin；
Cutting knife, for detachment cutting tissue to be stapled；
Push broach bar, is used for driving described cutting knife to move；
It is characterized in that, described nail-head component also includes an auxiliary closing assembly, is movably arranged in described nail bin frame, and described auxiliary closing assembly includes: sliding shoe, connecting rod and runner；Described runner is articulated on described nail bin frame and can rotate relative to nail bin frame, sliding shoe and described runner described in the pivot joint respectively of the two ends of described connecting rod；
Wherein, when described push broach bar drives described cutting knife distal movement, described cutting knife can drive described runner to rotate and pass through described connecting rod and drive described sliding shoe, makes described sliding shoe move the lower section to described nail anvil near-end；
When described cutting knife proximal movement resets, described cutting knife can drive described sliding shoe to move proximally to reset, and drives the reversion of described runner to reset by connecting rod.
2. nail-head component according to claim 1, it is characterised in that
Described cutting knife is provided with Driving plane, proximal end face and driver slot；Described Driving plane is positioned at the near-end upper limb of described driver slot, and described proximal end face is positioned at the lower section outer rim of described driver slot.
3. nail-head component according to claim 2, it is characterised in that one end of described connecting rod is provided with the first pin-and-hole, its other end is provided with the second pin-and-hole；
Described sliding shoe is provided with to be had the main body of upper surface, the first bearing pin and has the abutting part of distal face；First pin-and-hole of described first bearing pin and connecting rod matches, and the distal face of described abutting part can match for sliding shoe is resetted with the proximal end face of described cutting knife.
4. nail-head component according to claim 3, it is characterised in that described runner is provided with the second bearing pin, drives axle, the first side wheel, the second side wheel；Described second bearing pin matches with the second pin-and-hole of described connecting rod, and the end lateral out of described first side wheel and the second side wheel is articulated on nail bin frame, is connected by described driving axle between described first side wheel and the lateral inner ends portion of the second side wheel；
Wherein, when described push broach bar drives described cutting knife distal movement, the Driving plane of described cutting knife matches with the driving axle of described runner and makes described runner rotate, and drives described sliding shoe by described connecting rod, makes the upper surface of the main body of described sliding shoe move to described nail anvil near-end；After described runner rotates to an angle, the driving axle in the vertical direction of the Driving plane of described cutting knife and described runner misplaces so that described cutting knife separates with described runner, and described runner stops the rotation, and described cutting knife continues distal movement；
When described cutting knife proximal movement resets, the proximal end face of described cutting knife contacts with the distal face of described sliding shoe, promotes described sliding shoe to move proximally to reset, and drives runner reset reversion by connecting rod.
5. nail-head component according to claim 4, it is characterised in that in an initial condition, described driving axle is placed in the driver slot of described cutting knife.
6. nail-head component according to claim 4, it is characterised in that the second bearing pin of described runner is positioned on described second side wheel and the axis direction of the second bearing pin is parallel to the horizontal direction of nail bin frame；Second side wheel has the accommodation space holding the second bearing pin and connecting rod, and when runner rotates, this accommodation space can for the connecting rod rotation offer pivot spaces around the second bearing pin.
7. nail-head component according to claim 4, it is characterised in that the side deviating from the second bearing pin of described driving axle is provided with escape groove, with the structure of the driver slot bottom of accommodating described cutting knife.
8. nail-head component according to claim 4, it is characterised in that the driving shaft section of described runner is D font, triangle, circle, rectangle, square or irregularly shaped.
9. nail-head component according to claim 3, it is characterised in that be parallel to described nail bin frame bottom surface and be perpendicular in described sliding shoe axially direction, the first bearing pin of described sliding shoe and abutting part are arranged in the far-end of described main body alternately.
10. nail-head component according to claim 9, it is characterised in that the proximal of described sliding shoe is provided with guide part, described guide part is from the proximal extension of described sliding shoe main body guide pad out or is arranged at the gathering sill on described sliding shoe.
11. nail-head component according to claim 10, it is characterised in that the axis of described guide part, described abutting part and described runner, described cutting knife substantially overlaps, and described connecting rod is offset to this side, axis abreast.
12. the nail-head component according to any one of claim 1 to 11, it is characterized in that, described cutting knife is cross section is the I-shaped cutter of I shape, along with described push broach bar promotes described cutting knife distal movement, the far-end of described nail anvil closes gradually under the effect of described cutting knife, and the near-end of described nail anvil lifts gradually.
13. the nail-head component according to any one of claim 1 to 11, it is characterised in that runner described in described cutter driving is until in the process that separates with described runner, the maximum anglec of rotation of described runner is more than 45 degree, less than 150 degree.
14. a chamber mirror Endo-GIA, including the nail-head component according to any one of claim 1 to 13.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850323.XA CN105796146B (en) | 2014-12-31 | 2014-12-31 | A kind of nail-head component and the hysteroscope Endo-GIA with the nail-head component |
| PCT/CN2015/098181 WO2016107450A1 (en) | 2014-12-31 | 2015-12-22 | Staple cartridge assembly and medical anastomat using same |
| BR112017013860-3A BR112017013860B1 (en) | 2014-12-31 | 2015-12-22 | Medical stapler and stapler cartridge set |
| US15/540,975 US10888323B2 (en) | 2014-12-31 | 2015-12-22 | Staple cartridge assembly and medical stapler using the staple cartridge assembly |
| EP15875128.9A EP3241504A4 (en) | 2014-12-31 | 2015-12-22 | Staple cartridge assembly and medical anastomat using same |
| JP2017534938A JP6404478B2 (en) | 2014-12-31 | 2015-12-22 | Staple cartridge unit and medical stapler using the staple cartridge unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850323.XA CN105796146B (en) | 2014-12-31 | 2014-12-31 | A kind of nail-head component and the hysteroscope Endo-GIA with the nail-head component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105796146A true CN105796146A (en) | 2016-07-27 |
| CN105796146B CN105796146B (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410850323.XA Active CN105796146B (en) | 2014-12-31 | 2014-12-31 | A kind of nail-head component and the hysteroscope Endo-GIA with the nail-head component |
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| Country | Link |
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| CN (1) | CN105796146B (en) |
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| CN110464400A (en) * | 2019-08-06 | 2019-11-19 | 安徽麦吉恩医疗科技有限公司 | Intracavitary Endo-GIA and its tong head |
| CN113616260A (en) * | 2021-08-24 | 2021-11-09 | 常州安康医疗器械有限公司 | Anastomat is with identical nail seat convenient to installation is dismantled |
| CN114569179A (en) * | 2020-11-30 | 2022-06-03 | 苏州英途康医疗科技有限公司 | Anastomat |
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| CN113616260B (en) * | 2021-08-24 | 2022-08-26 | 常州安康医疗器械有限公司 | Anastomat is with identical nail seat convenient to installation is dismantled |
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| Publication number | Publication date |
|---|---|
| CN105796146B (en) | 2018-03-20 |
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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215021, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |