Utility model content
The purpose of this utility model is to provide one kind to prevent nail bin displacement in sewing process, and reduces the use for nail resistanceIn the nail bin of surgical instruments.
In order to achieve the above object, the technical scheme that the utility model is used is as follows：A kind of nail for surgical instrumentsStorehouse, with staple cartridge body and the suturing nail being arranged in the staple cartridge body, is provided with some staple cavities in the staple cartridge body,The staple cartridge body includes top end face, and the top end face is provided with and goes out nail through what the top end face was formed by the staple cavityMouthful, some teats are provided with the top end face, the teat is more than apart from the nail mouth certain distance, the certain distance0mm, the teat is extended laterally along nail bin.
Further, the teat includes first side and second side, the first side and the second side edgeStaple cartridge body is extended laterally；The top of the first side is intersected with the top of the second side, or, first sideInclude at least one face between the top of the top in face and the second side.
Further, form the first angle between the first side and the top end face, the second side with it is describedThe second angle is formed between top end face；First angle and second angle are obtuse angle；Or, first angle,Second angle is 90 °；Or, one is obtuse angle in first angle, second angle, and another is 90 °.
Further, the staple cartridge body has insertion end；Relative to second side, the first side is closer to nail binThe insertion end of body；First angle is obtuse angle.
Further, absolute value of the absolute value of first angle more than second angle.
Further, the first side and/or the second side are plane, the wavy surface intersected with the top end faceOr the combinatorial surface being made up of multiple planes of different shapes and/or curved surface.
Further, a curved chamfering is included between the top of the top of the first side and the second sideFace.
Further, the vertical range between the top of the teat and top end face is 0.3~0.5mm.
Further, one nail mouth of each teat correspondence, the longitudinal center axis of the nail mouth is right through itsThe teat answered.
Further, the longitudinal center axis weight of the corresponding teat of the longitudinal center axis of the nail mouthClose.
Further, the distance of the end of the corresponding nail mouth of each teat is more than 0 and is less than or equal to0.1mm。
The utility model additionally provides a kind of surgical instruments, including the above-mentioned nail bin for surgical instruments.
Further, the surgical instruments is suture instruments.
By such scheme, the utility model at least has advantages below：Due to of the present utility model for surgical instrumentsNail bin be provided with top end face along some teats for extending laterally of nail bin, with suture when, it is ensured that be sewn tissue andLongitudinal force between nail bin, prevents from being sewn length travel occurs when being organized in suture, and because the teat is apart from nail mouth oneSet a distance, and the certain distance is more than 0mm, therefore burr will not be produced in the nail mouth of the staple cartridge body, so that, relatively existing skillFor art, in suture, it is smaller that the suturing nail in nail bin goes out to follow closely resistance, is easy to nail.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility modelArt means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed belowDescribe in detail bright as after.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initioSame or similar element or element with same or like function are represented to same or similar label eventually.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " widthDegree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ",The orientation or position relationship of the instruction such as " axial direction ", " radial direction ", " circumference ", " reciprocal " are to be closed based on orientation shown in the drawings or positionSystem, is for only for ease of description the utility model and simplifies description, necessary rather than the device or element for indicating or imply meaningWith specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importanceOr the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express orImplicitly include at least one this feature.In description of the present utility model, " multiple " is meant that at least two, such as twoIt is individual, three etc., unless otherwise expressly limited specifically.
Embodiment below with reference to Description of Drawings is exemplary, it is intended to for explaining the utility model, and can notIt is interpreted as to limitation of the present utility model.
A kind of surgical instruments described in the preferred embodiment of the utility model one includes handle portion, the bar being arranged in handle portionBody component, the end effector being arranged on the shaft member and the nail for surgical instruments on end effectorStorehouse (hereinafter referred to as nail bin).The surgical instruments is suture instruments.Signified longitudinally is arrow a institutes in Fig. 1 in the present embodimentThe opposite direction of finger direction and arrow a directions, the opposite direction of arrow a directions enters people for nail bin with end effectorMoving direction during body, is also the length direction of nail bin；Signified horizontal direction is arrow b directions and arrow b in Fig. 1The opposite direction of direction, is the width of nail bin；The transverse direction of staple cartridge body 1 is mutually hung down with the longitudinally of staple cartridge body 1Directly.On the basis of the placing direction of nail bin in Fig. 1, wherein above-below direction is nail to the up, down, left, right, before and after being previously mentioned in textThe thickness direction in storehouse, fore-and-aft direction is the width of nail bin；Left and right directions is the longitudinally of nail bin.Longitudinal axis is along lengthwise sideTo extension.
Referring to Fig. 1 to Fig. 7, the nail bin 10 has staple cartridge body 1, the suturing nail 2 being arranged in the staple cartridge body 1, pushes awayDynamic suturing nail 2 goes out the nail-pushing part 3 of nail, drives the pusher 4 of the motion of nail-pushing part 3 and be fixed on the support of the bottom of staple cartridge body 1Frame 5.When nail bin 10 is not used, lid 20 is covered with the nail bin 10, such that it is able to prevent dust etc. from entering nail bin 10Interior, the lid 20 includes cover plate 201 and the pothook 202 and positioning ridge 203 that are downwardly extending from the cover plate 201, describedPothook 202 is downwardly extending in the side of cover plate 201, when the end effector that nail bin 10 is installed on surgical instruments (notDiagram) on when, need first remove lid 20, then install.The staple cartridge body 1 has insertion end 11 and end 12, the insertion end11 is to enter into the one end being sewn in tissue with end effector first relative to end 12, when nail bin 10 is installed in endAfter actuator, insertion end 11 is located at the head end of end effector, and the end 12 of the staple cartridge body 1 is located at end effector near outerOne end of the shaft member of section's apparatus.The staple cavity 13 of some storage suturing nails 2, the nail are provided with the staple cartridge body 1Storehouse body 1 includes top end face 14 and the bottom face 15 being disposed opposite to each other with the top end face 14, and the top end face 14 is provided with by instituteThe nail mouth 131 that staple cavity 13 is formed through the top end face 14 is stated, the staple cavity 13 also extends through the bottom of staple cartridge body 1 simultaneouslyEnd face 15, is further opened with the sliding conduit 151 extended on the longitudinally along staple cartridge body 1 on the bottom face 15.
Fig. 2 and Figure 11 is referred to, the suturing nail 2 has fix bar 21 and upwardly extends shape from the two ends of the fix bar 21Into extension rod 22, the fix bar 21 is arranged on nail-pushing part 3.(nail is not gone out) in 2 original state of suturing nail, the seamThe top of the extension rod 22 of dowel 2 is less than the top end face 14 of staple cartridge body 1, or, the top of the extension rod 22 of the suturing nail 2Flushed with the top end face 14 of staple cartridge body 1, be beneficial into nail.If the top of suturing nail is higher than the top end face 14 of staple cartridge body 1,Can cannot suture, be unfavorable for into nail, its reason is, when end effector insertion is sewn tissue, when the top of suturing nail is highWhen top end face 14, suturing nail can be contacted with tissue is sewn, and produce friction, and suturing nail misplaces with tissue is sewn, noBeneficial into nail.
Fig. 2 to Fig. 6 is referred to, some teats 16 are provided with the top end face 14, the teat 16 is apart from nail mouth 131Certain distance, first distance is more than zero, and the teat 16 is extended laterally along nail bin 10.If due to being set on top end face 14Dry teat 16, to increase nail bin 10 and be sewn frictional force between tissue, then the teat 16 is arranged to the transverse direction along nail bin 10Extend, to ensure longitudinal force, prevent from being sewn when be organized in suture, vertically move, to improve sewing effect；And byTeat 16 in the present embodiment apart from the certain distance of nail mouth 131, the certain distance again be more than zero so that teat 16 not with go outNail mouth 131 overlaps, so, the junction of teat 16 and staple cartridge body 1 is not in nail mouth 131, therefore the nail mouth of staple cartridge body 1Burr will not be produced on 131, is solved in the prior art, when suturing nail 2 goes out and follows closely, due to being produced in the nail mouth of staple cartridge body 1Setation is pierced, and suturing nail 2 is gone out to follow closely the larger problem of resistance, consequently facilitating going out nail, and then can realize hitting by less powerNail is sent, the operational comfort of the surgical instruments is improved.The nail mouth 131 has the longitudinally in the staple cartridge body 1On the end 133 of first end 132 and second that is oppositely arranged, the opposite second end 133 of first end 132 sets near insertion end 11.InstituteStating teat 16 includes the first side 161 and second side 162 that are disposed opposite to each other, the first side 161 and the edge of second side 162Extending laterally for staple cartridge body 1, includes at least one between the top of the first side 161 and the top of second side 162Face, in other embodiments, the top of the first side 161 can intersect with the top of second side 162.The first sideThe first angle α is formed between 161 and top end face 14, the second angle β, institute are formed between the second side 162 and top end face 14State the first angle α and the second angle β is disposed opposite to each other, in the present embodiment, first angle α and the second angle β are obtuse angle.Relative to second side 162, insertion end 11 of the first side 161 closer to staple cartridge body 1.The first angle β is bluntAngle, is sewn in tissue with further preventing teat 16 to be embedded in.The absolute value of first angle α is more than the second angle β'sAbsolute value, then now longitudinal breakaway force is larger, helps to increase skidproof effect, and really, the first angle α absolute value can be less thanThe absolute value of the second angle β, but compared to " absolute value of the absolute value of first angle α more than the second angle β ", when the first folderWhen the absolute value of angle α is less than the absolute value of the second angle β, then longitudinal breakaway force is relatively small, and skidproof effect is relatively poor.In order toBe easy to technological forming, and further improve longitudinal force, the first side 161 and second side 162 with the top end face 14Intersecting, the first side 161 and second side 162 are relative to the inclined plane of top end face 14, in other embodimentIn, the first side 161 and second side 162 can be wavy surface, or by multiple planes of different shapes and/or curved surface structureInto combinatorial surface.In order to prevent the teat 16 from puncturing or insertion is sewn tissue or punctures the tissue in other regions, described theCurved fillet surface 163 is formed between one side 161 and second side 162, i.e. the top of first side 161 and the second sideInclude curved fillet surface 163 between the top in face 162.Vertical range between the top of the teat 16 and top end face 14 is mostGood value is 0.3~0.5mm, i.e. teat 16 is 0.3~0.5mm relative to the height of top end face 14, if being higher than 0.5mm, can be increasedPlus reaction force, easily it is embedded in tissue, it is difficult to depart from, if being less than 0.3mm, skidproof effect will be deteriorated.In addition to the present embodiment,In other embodiments, first angle, the second angle can be 90 °；Or one in first angle, the second angleIndividual is obtuse angle, and another can be 90 °.If but setting in 90 °, the first side by the first angle, the second angle at least oneBy vertical top end face 14, then the scheme for being used with respect to the present embodiment, the teat 16 occurs relatively for face 161 and/second side 162The possibility that insertion is sewn tissue is bigger.
Incorporated by reference to Fig. 4 and Figure 11, above-mentioned teat 16 can with concentrated setting in the rear of the top end face 14 of staple cartridge body 1 orFirst section or stage casing, or scattered be distributed in staple cartridge body 1.In the present embodiment, one institute of each teat 16 correspondenceState nail mouth 131.Because suturing nail 2 is arranged in staple cavity 13, its structure is specifically, 22 points of two extension rods of suturing nail 2It is not resisted against on the two side of staple cavity 13, wherein longitudinal axis (the nail mouth 131 of the corresponding nail mouth 131 in the two sideLongitudinal axis it is in the same direction with the longitudinally of staple cartridge body 1) it is vertical, and when suturing nail 2 goes out and follows closely, by two extensions of suturing nail 2Bar 22 is deformed upon to suture clamped tissue, so, to improve sewing effect, therefore, to assure that go out the place of extension rod 22 when following closelyThe clamped tissue of position is not subjected to displacement, therefore according to test of many times, in order to improve sewing effect, by the nail mouth on every row131 longitudinal center axis passes through the teat 16 on the row；In order to reach optimum efficiency, the longitudinal center axis of the teat 16The longitudinal center axis of corresponding nail mouth 131 overlaps.The correspondence nail mouth 131 of the teat 16 forms some rows, often arrangesOn teat 16 be set in qually spaced in the nail mouth 131 first end 132 side, in order to prevent the position of extension rod 22Clamped tissue be subjected to displacement, need to prevent teat 16 from being overlapped with nail mouth 131, it is necessary to make again：The quilt of the position of teat 16The scope of the clamped tissue of scope encirclement extension rod 22 position of tissue is clamped, but, teat 16 can not separate out nail againMouthfuls 131 too remote, otherwise, it is impossible to the clamped tissue of the position of securing elongated bar 22, confirms by repetition test, teat 16 withThe optimum distance of first end 132 is more than 0 and less than or equal to 0.1mm.Really, the teat 16 often on row can also spaced setIn the side at the second end 133 of the nail mouth 131, or, each nail mouth 131 is correspondingly arranged on two teats 16, and this goes outTwo teats 16 corresponding to nail mouth 131 are separately positioned on the both sides at the end 133 of first end 132 and second.
Fig. 2 to Figure 11 is referred to, the knife extended along the longitudinal axis of the staple cartridge body 1 is offered in the staple cartridge body 1Slit 17, the cutter slit runs through top end face 14 and bottom face 15 about 17, be divided into for the staple cartridge body 1 by the cutter slit 17Two sidepieces 18, each described sidepiece 18 includes two sides for longitudinally extending, and two sides are respectively the He of lateral surface 181Medial surface 182, is provided with buckle slot 183, fixing slot 184 and holding block 185 on the lateral surface 181.Set on each sidepiece 18Nail mouth 131 of three rows parallel to longitudinal axis is equipped with, the nail mouth 131 of adjacent two row is shifted to install.The positioning of the lid 20Ridge 203 is inserted into the cutter slit 17, and the pothook 202 is clasped so that lid 20 and nail bin with buckle slot 183Body 1 is fixed.Offered on the bracket 5 with the holding block 185 coordinate groove 51 and with the fixing slot 184 coordinateHook portion 52.The bracket 5 is used to stationary pusher 4 to prevent pusher 4 from departing from staple cartridge body 1.As shown in fig. 6, the promotionDevice 4 includes base plate 41, the cam part 42 to be formed is upwardly extended from the base plate 41 and type is upwardly extended from the base plate 41 formedLimited block 43.The base plate 41 is clamped between bracket 5 and the bottom face 15 of staple cartridge body 1, and the cam part 42 is located atIn the sliding conduit 151 of staple cartridge body 1, can Relative sliding conduit 151 move, the limited block 43 is limited in cutter slit 17,To prevent when pusher 4 is moved relative to staple cartridge body 1, pusher 4 deviates moving direction or rocks.Described each staple cavityNail-pushing part 3 has been installed with 13, the nail-pushing part 3 include supporting part 31 and with the integrally formed guide part 32 of the supporting part 31.The projection on the side of the two of the supporting part 31 is formed with extension block 33, and extension block 33, supporting part 31 enclose and set to form restriction suturing nail 2The restriction groove 34 of setting.The fix bar 21 of the suturing nail 2 is in the stopper slot 34.The fix bar 21 of the suturing nail 2 setsIn in the restriction groove 34 of supporting part 31.The guide part 32 is adapted to the cam part 42 of the pusher 4, the guide part 32In in the sliding conduit 151, when the pusher 4 drives nail-pushing part 3 to move, the cam part 42 and guide part of pusher 432 contacts, promote guide part 32 to move, and because nail-pushing part 3 is arranged in staple cavity 13, the staple cavity 13 limits the nail-pushing part 3Relative staple cartridge body 1 is only capable of to move up and down, therefore when cam part 42 applies active force to guide part 32, guide part 32 is only capable of relativelyStaple cartridge body 1 is moved up, and now, supporting part 31 is moved up with guide part 32 with respect to staple cartridge body 1, so as to promote suturing nail2 relative staple cartridge bodies 1 are moved up, and realize out nail.In the present embodiment, nail-pushing part 3 includes that two kinds of different structures are (specific detailedSee Figure 10 and Figure 11), its concrete structure is not described here in detail.The nail-pushing part 3 is supported by bracket 5, in case thrust nail piece 3 departs from nailStorehouse body 1.
In sum, the transverse direction along nail bin 10 is provided with top end face 14 due to the above-mentioned nail bin 10 for surgical instrumentsThe some teats 16 for extending, with suture, it is ensured that be sewn the longitudinal force between tissue and nail bin 10, prevent from being sewn tissueThere is length travel in suture, and because the teat 16 is apart from the certain distance of nail mouth 131, and the certain distance is more than 0, thereforeBurr will not be produced in the nail mouth 131 of the staple cartridge body 1, relative to existing technologies, in suture, the suture in nail bin 10It is smaller that nail 2 goes out to follow closely resistance, is easy to nail.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " GuIt is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can beMechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be twoThe connection of element internal or two interaction relationships of element, unless otherwise clearly restriction.For the common skill of this areaFor art personnel, concrete meaning of the above-mentioned term in the utility model can be as the case may be understood.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D scoreCan be the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is specialLevy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or onlyRepresent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be withBe fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically showThe description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are describedPoint is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned termState and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be withCombined in an appropriate manner in any one or more embodiments or example.Additionally, in the case of not conflicting, this areaTechnical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be enteredRow is combined and combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment isExemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility modelIt is interior above-described embodiment to be changed, changed, replaced and modification.