Summary of the invention
The purpose of the present invention is to provide one kind, and nail bin in sewing process can be prevented to be displaced, and reduces and follows closely resistance out, and can putNail bin for surgical instruments of the width to the matching requirements of suturing nail.
In order to achieve the above object, the technical solution adopted in the present invention is as follows: a kind of nail bin for surgical instruments, toolThere are staple cartridge body and suturing nail, several staple cavities are provided in the staple cartridge body, the suturing nail is arranged in the staple cavityIt is interior；The staple cavity has inner cavity surface, and the inner cavity surface includes the longitudinal axis with nail mouth and be oppositely arranged two hang downIt faces directly, the suturing nail has deformable extension rod, and the extension rod is resisted against on the vertical plane, and can opposing perpendicular planesIt is mobile；The staple cartridge body includes top end face, and the top end face, which is equipped with, runs through what the top end face was formed by the staple cavityNail mouth；It is characterized by: being provided with the protrusion for surrounding the nail mouth on the top end face, the protrusion has inner surface,The inner surface includes the longitudinal axis with the nail mouth and two lateral faces being oppositely arranged, and each transverse direction facesAnswer the vertical plane, each lateral face with its corresponding to vertical plane it is for the same side；The portion top surface of the protrusionRecessed formation recess portion；The protrusion includes the longitudinal axis perpendicular to nail mouth and two transverse parts, extremely for being located at nail mouth two sidesSmall part is parallel to two longitudinal directions portion of longitudinal axis and between the transverse part and the longitudinal direction portion and described in connectionThe interconnecting piece of transverse part and the longitudinal direction portion, each transverse part include the lateral face；The recess portion is formed in describedIn longitudinal portion.
Further, the vertical range between the top of the protrusion and the top end face is 0.3~0.5mm.
Further, the distance between the top of the transverse part and the top end face are 0.3~0.5mm.
Further, the vertical range between the top of the transverse part and the top surface of recess portion is greater than 0 and to be less than or waitIn 0.1mm.
In order to achieve the above object, the present invention can also used by technical solution it is as follows: a kind of nail for surgical instrumentsStorehouse has staple cartridge body and suturing nail, and several staple cavities are provided in the staple cartridge body, and the suturing nail is arranged in the seamIn nail cavity；The staple cavity have inner cavity surface, the inner cavity surface include the longitudinal axis with nail mouth and be oppositely arranged twoA vertical plane, the suturing nail have deformable extension rod, and the extension rod is resisted against on the vertical plane, and can be hung down relativelyFace movement directly；The staple cartridge body includes top end face, and the top end face, which is equipped with, runs through the top end face shape by the staple cavityAt nail mouth；The protrusion for surrounding the nail mouth is provided on the top end face, the protrusion has inner surface, the interior tableFace includes the longitudinal axis with the nail mouth and two lateral faces being oppositely arranged, each lateral corresponding institute in faceState vertical plane, each lateral face with its corresponding to vertical plane it is parallel, each transverse direction face with its corresponding to it is verticalThere is certain distance, and each vertical plane is located at the inside in corresponding lateral face between face, the certain distance is bigIn zero；The recessed formation recess portion of the portion top surface of the protrusion, the protrusion include the longitudinal axis perpendicular to nail mouth and are located atTwo transverse parts of mouth two sides are followed closely, two longitudinal directions portion of longitudinal axis is at least partly parallel to and are located at the transverse part and instituteThe interconnecting piece of the transverse part Yu the longitudinal direction portion is stated between longitudinal portion and connects, each transverse part includes the crossTo face；The recess portion is formed in the longitudinal direction portion.
Further, the vertical range between the top of the transverse part and the top end face is 0.3~0.5mm.
Further, the vertical range between the top of the transverse part and the top surface of the recess portion is greater than 0 and to be less thanOr it is equal to 0.1mm.
Further, the vertical range between the top of the protrusion and the top end face is 0.3~0.5mm.
Further, the certain distance is greater than zero and to be less than or equal to 0.1mm.
The present invention also provides a kind of surgical instruments, including the above-mentioned nail bin for surgical instruments.
Further, the surgical instruments is suture instruments.
According to the above aspect of the present invention, the present invention has at least the following advantages: since the nail bin for surgical instruments of the invention existsSeveral protrusions of nail mouth are surrounded in setting on top end face, in suture, it is ensured that the longitudinal force being sewn between tissue and nail bin,It prevents from being sewn when group is woven in suture and length travel occurs；Again due to make the staple cavity vertical plane and protrusion lateral face togetherOn one side, alternatively, making that there is first distance between the vertical plane of the staple cavity and the lateral face of protrusion and the vertical plane being made to be located at crossTo the inside in face, to prevent from generating burr in the nail mouth of staple cartridge body.Relative to existing technologies, in suture, nail binNail resistance is smaller out for interior suturing nail, convenient for going out to follow closely；In addition, relaxing the matching requirements to suturing nail due to such design, dropLow this is used for the assembly difficulty of the nail bin of surgical instruments, and the protrusion of nail bin can be prevented to be embedded in and be sewn in tissue.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to endSame or similar label indicates same or similar element or element with the same or similar functions.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width "," thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axisTo ", " radial direction ", " circumferential direction ", the orientation or positional relationship of the instructions such as " reciprocal " be to be based on the orientation or positional relationship shown in the drawings,Be merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have it is specificOrientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importanceOr implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed orImplicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, threeIt is a etc., unless otherwise specifically defined.
The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to be used to explain the present invention, and cannot understandFor limitation of the present invention.
A kind of surgical instruments described in a preferred embodiment of the present invention includes handle portion, the shaft group being arranged in handle portionPart, the end effector being arranged on the shaft member and the nail bin for surgical instruments being mounted on end effector(hereinafter referred to as nail bin).The surgical instruments is suture instruments.Signified longitudinally is that arrow a is signified in Fig. 1 in the present embodimentThe opposite direction of the opposite direction of direction and arrow a direction, arrow a direction enters human body with end effector for nail binWhen moving direction, be also the length direction of nail bin；Signified transverse direction is arrow b direction in Fig. 1 and arrow b instituteThe opposite direction of finger direction is the width direction of nail bin；The transverse direction of staple cartridge body 1 and the longitudinally of staple cartridge body 1 are mutually perpendicular to.The up, down, left, right, before and after being previously mentioned in text is on the basis of the placing direction of nail bin in Fig. 1, and wherein up and down direction is nail binThickness direction, front-rear direction are the width direction of nail bin；Left and right directions is the longitudinally of nail bin.Longitudinal axis prolongs along longitudinallyIt stretches.
Referring to Fig. 1 to Fig. 3 and Fig. 6 and Fig. 7 is combined, a kind of nail bin 10 for surgical instruments described in embodiment one hasWhat staple cartridge body 1, the suturing nail 2 being arranged in the staple cartridge body 1, the opposite staple cartridge body 1 of the driving suturing nail 2 moved pushes awayNail piece 3, the pusher 4 for driving the nail-pushing part 3 to move and the bracket 5 for being fixed on 1 bottom of staple cartridge body.It is not used in nail bin 10When, lid 20 is covered on the nail bin 10, and so as to prevent dust etc. from entering in nail bin 10, which includes cover board201 and the pothook 202 and positioning ridge 203 that are downwardly extending from the cover board 201, the pothook 202 is in cover board 201Side is downwardly extending, when on the end effector (not shown) that nail bin 10 is installed on to surgical instruments, first by lid 20Removal, then install.The staple cartridge body 1 have insertion end 11 and end 12, the insertion end 11 be relative to end 12 first withEnd effector enters the one end being sewn in tissue, and after nail bin is installed in end effector, insertion end 11 is located at endThe head end of portion's actuator, the end 12 of the staple cartridge body 1 are located at end effector close to one end of the shaft member of surgical instruments.Be provided in the staple cartridge body 1 it is several storage suturing nails 2 staple cavities 13, the staple cartridge body 1 include top end face 14 and withThe bottom face 15 that the top end face 14 is disposed opposite to each other, the top end face 14, which is equipped with, runs through the top end face by the staple cavity 1314 nail mouthes 131 formed, the staple cavity 13 also extend through the bottom face 15 of staple cartridge body 1 simultaneously, go back on the bottom face 15Offer the sliding conduit 151 extended along the longitudinally of staple cartridge body 1.
Fig. 2 and Figure 11 are referred to, the suturing nail 2 has fixed link 21 and upwardly extends shape from 21 both ends of fixed linkAt extension rod 22.In 2 original state of suturing nail, the top of the extension rod 22 of the suturing nail 2 is lower than top end face 14,Alternatively, the top of the extension rod 22 of the suturing nail 2 is flushed with top end face 14, alternatively, the top of the extension rod 22 of the suturing nail 2End is higher than top end face 14 and is lower than the top of protrusion 16.
It refers to Fig. 2 to Fig. 5 and combines Figure 11, be provided with the protrusion for surrounding the nail mouth 131 on the top end face 1416.The staple cavity 13 has inner cavity surface 132, and the protrusion 16 has inner surface 161, the inner cavity surface 132 and inner surface 161It is for the same side.The inner cavity surface 132 includes and the longitudinal axis of the nail mouth 131 (longitudinal axis of nail mouth 131 and staple cartridge body 1Longitudinally it is in the same direction) vertical and two vertical plane 132a being oppositely arranged and the interface for connecting two vertical plane 132a132b, at original state (not going out to follow closely), 2 two correspondences of extension rod 22 of suturing nail are resisted against on a vertical plane 132a, when outWhen nail, 22 opposing perpendicular planes 132a of extension rod is moved up to remove staple cavity 13.The inner surface 161 includes going out to follow closely with describedThe longitudinal axis of mouth 131 and two transverse direction face 161a being oppositely arranged and the joint face 161b for connecting two vertical plane 132a.Each transverse direction face 161a corresponds to vertical plane a 132a, each transverse direction face 161a and the vertical plane 132a corresponding to itIn parallel, and it is for the same side.Each corresponding joint face 161b of the interface 132b, and interface 132b is correspondingJoint face 161b is for the same side.It really, in other embodiments, can face 161a and vertical plane 132a be merely transversely sameFace, since comparatively relative motion only occurs with vertical plane 132a for extension rod 22, i.e. extension rod 22 is only sent out with vertical plane 132aRaw friction, therefore lateral face 161a and vertical plane 132a are only arranged to the same face, still, due to the limit of current technical mattersSystem and molding difficulty, therefore being directly respectively provided with lateral face 161a and vertical plane 132a, interface 132b and joint face 161b becomesThe nail mouth 131 is integrally formed by the same face with protrusion 16.If surrounding nail mouth 131 by being arranged on top end face 14Dry protrusion 16, in suture, it is ensured that the longitudinal force being sewn between tissue and nail bin 10 prevents from being sewn group when being woven in sutureLength travel occurs；Again due to keeping the vertical plane 132a of the staple cavity 13 for the same side with the lateral face 161a of protrusion 16, thusConvergence part is not generated between protrusion 16 and the nail mouth 131 of staple cartridge body 1, is generated in the nail mouth 131 to prevent staple cartridge body 1Burr, relative to existing technologies, in suture, nail resistance is smaller out for the suturing nail 2 in nail bin 10, convenient for going out to follow closely；In addition, byIn such design, the mounting height requirement to suturing nail 2 is relaxed, that is, suturing nail 2 can be higher than top end face when installation14.In addition to this, the protrusion 16 of this kind of structure is defensive stronger, it is therefore prevented that protrusion 16, which is embedded in, to be sewn in tissue.In this realityIt applies in example, the vertical range optimum value between the top and top end face 14 of the protrusion 16 is 0.3~0.5mm, that is, 16 phase of protrusionHeight for top end face 14 is that 0.3~0.5mm will increase reaction force, be easily embedded in tissue if being higher than 0.5mm, difficultTo be detached from, if being lower than 0.3mm, antiskid effect will be deteriorated.
Fig. 2 to Figure 11 is referred to, the knife of the longitudinal axis extension along the staple cartridge body 1 is offered in the staple cartridge body 1Slit 17, about 17 cutter slit run through top end face 14 and bottom face 15, and the staple cartridge body 1 is divided by the cutter slit 17Both sides 18, each side 18 include the two sides longitudinally extended, and two sides are divided into lateral surface 181 and medial surface182, buckle slot 183, fixing slot 184 and holding block 185 are provided on the lateral surface 181.Three are provided on each side 18The nail mouth 131 of parallel longitudinal axis is arranged, the nail mouth 131 in adjacent two rows shifts to install.The positioning ridge 203 of the lid 20 canIt is inserted into the cutter slit 17, the pothook 202 is clasped with buckle slot 183 so that lid 20 and staple cartridge body 1 are solidIt is fixed.The hook portion 52 with the groove 51 of the holding block 185 cooperation and with the fixing slot 184 cooperation is offered on the bracket 5.The bracket 5 prevents pusher 4 to be detached from staple cartridge body 1 to stationary pusher 4.The pusher 4 includes bottom plate 41, from instituteState the limited block 43 that bottom plate 41 upwardly extends the cam part 42 to be formed and upwardly extends type formation from the bottom plate 41.The bottom plate41 are clamped between bracket 5 and the bottom face 15 of staple cartridge body 1, and the cam part 42 is located at the sliding conduit 151 of staple cartridge body 1It is interior, can Relative sliding conduit 151 it is mobile, the limited block 43 is limited in cutter slit 17, to prevent pusher 4 with respect to nail bin sheetWhen body 1 is mobile, pusher 4 deviates moving direction or shaking.It is installed with nail-pushing part 3 in each staple cavity 13, this is pushed awayNail piece 3 include support portion 31 and with the integrally formed guide part 32 of the support portion 31.It dashes forward upwards the two sides of the support portion 31It stretches and is formed with extension block 33, extension block 33, support portion 31, which surround to be formed, limits the restriction slot 34 that suturing nail 2 is arranged.The suturing nail 2Fixed link 21 be set to limit slot 34 in.The guide part 32 is adapted to the cam part 42 of the pusher 4, the guide part 32In the sliding conduit 151, when the pusher 4 driving nail-pushing part 3 is mobile, the cam part 42 and guiding of pusher 4Portion 32 contacts, and pushes guide part 32 mobile, and since nail-pushing part 3 is arranged in staple cavity 13, which limits the ejector pinPart 3 is only capable of opposite staple cartridge body 1 and moves up and down, therefore when cam part 42 applies active force to guide part 32, guide part 32 is only capable ofOpposite staple cartridge body 1 moves up, at this point, support portion 31 is moved up with guide part 32 with respect to staple cartridge body 1, to push seamDowel 2 is moved up with respect to staple cartridge body 1.In the present embodiment, nail-pushing part 3 includes that two different structures (are specifically detailed in Fig. 9And Figure 10), specific structure is not described here in detail.The nail-pushing part 3 is supported by bracket 5, is detached from staple cartridge body to prevent thrust nail piece 31。
The difference of 2 and Figure 13 referring to Figure 1, nail bin and above-described embodiment one shown in the present embodiment two are: described prominentThe portion top surface in portion 16 ' is recessed recess portion 162 ', passes through such design, in addition to having the effect of in embodiment one, this implementationExample can also enhance cross force, to be sewn tissue transverse shifting in suture, specifically: the protrusion 16 ' includes verticalIn longitudinal axis transverse part 163 ', at least partly be parallel to longitudinal axis longitudinal portion 165 ' and be located at the transverse part 163 'Between the longitudinal direction portion 165 ' and it connect the interconnecting piece 164 ' of the transverse part 163 ' with the longitudinal direction portion 165 '.The crossIt is formed on transverse part 163 ' to face, the joint face is formed on longitudinal portion 165 ' and interconnecting piece 164 '.The recess portion 162 'It is formed in the longitudinal direction portion 165 '.In order to reach optimum efficiency, between the top and top end face 14 ' of the transverse part 163 'Vertical range is 0.3~0.5mm, that is, height between the top of the transverse part 163 ' and the top end face 14 ' for 0.3~0.5mm.If the vertical range between the top and top end face 14 ' of transverse part 163 ' is higher than 0.3~0.5mm, comparatively canIncrease reaction force, and comparatively, protrusion 16 ' is easier there is a phenomenon where being embedded in be sewn in tissue, if transverse partVertical range between 163 ' top and top end face 14 ' is lower than 0.3~0.5mm, then the grip of transverse part 163 ' is inadequate, anti-skiddingEffect is relatively poor.Vertical range between the top of the transverse part 163 ' and the top surface of recess portion 162 ' is 0.1mm, that is, instituteThe distance for stating 162 ' indent of recess portion is 0.1mm.
The difference of 4 and Figure 15 referring to Figure 1, nail bin and above-described embodiment one shown in the present embodiment three are: Mei GesuoState lateral face 161a " with its corresponding to vertical plane 132a " it is parallel between there is certain distance, and each vertical plane132a " is located at the inside of corresponding lateral face 161a ", and the certain distance is greater than zero.The inside refers to: inner surface161 " surround the region formed.Since several protrusions 16 " of encirclement nail mouth (not labeled) are arranged in the nail bin on top end face,In suture, it is ensured that the longitudinal force being sewn between tissue and nail bin (not labeled) prevents from being sewn hair when group is woven in sutureRaw length travel；Again due to making to have between the lateral face 161a " of the staple cavity (not labeled) and the vertical plane 132a " of protrusion 16 "The inside for having first distance and transverse direction face 161a " being made to be located at vertical plane 132a " so that protrusion protrusion 16 " not with nail mouth weightIt closes, so, the junction of protrusion 16 " and staple cartridge body can prevent from generating in the nail mouth of staple cartridge body not in nail mouthBurr, relative to existing technologies, in suture, the suturing nail resistance of nail out (not shown) in nail bin is smaller, convenient for going out to follow closely；SeparatelyOutside, due to such design, the matching requirements to suturing nail are relaxed, reduce the assembly difficulty of the nail bin, and this can anti-non-magnetic shimThe insertion of protrusion 16 " in storehouse is sewn in tissue.Due to the limitation and molding difficulty of current technical matters, in the present embodiment, oftenAlso there is certain distance, which is greater than zero between a interface 132b " corresponding joint face 161b ".
The clamped tissue of 22 " position of extension rod is not subjected to displacement in order to prevent, and need to be prevented protrusion 16 " and be gone out to follow closelySalty conjunction needs to make: the range of the clamped tissue of 16 " position of protrusion surrounds the clamped of 22 " position of extension rodThe range of tissue, to improve sewing effect, still, the transverse part 161 " of protrusion 16 " again cannot be too far from nail mouth, otherwise, nothingThe clamped tissue of the extension rod position of the fixed suturing nail of method, confirms, protrusion 16 " and first end 132 " by repetition testOptimum distance is greater than 0 and to be less than or equal to 0.1mm.In addition, as in the first embodiment, the top and top of the transverse part (not labeled)The distance between end face is 0.3~0.5mm.
The structure (not shown) of nail bin shown in above-described embodiment three can be with are as follows: the portion top surface indent of the protrusionRecess portion is formed, the structure and purpose of the recess portion are with implementing two, and so it will not be repeated.
In conclusion several protrusions for surrounding nail mouth are arranged in the nail bin for surgical instruments on top end face, to stitchWhen conjunction, it is ensured that the longitudinal force being sewn between tissue and nail bin prevents from being sewn when group is woven in suture length travel occurs；And byIt is for the same side with the lateral face of protrusion in making the vertical plane of the staple cavity, alternatively, making the vertical plane of the staple cavity and the cross of protrusionTo there is first distance between face and make the vertical plane positioned at the inside in lateral face, to prevent from producing in the nail mouth of staple cartridge bodySetation thorn.Relative to existing technologies, in suture, nail resistance is smaller out for the suturing nail in nail bin, convenient for going out to follow closely；In addition, byIn such design, the matching requirements to suturing nail are relaxed, reduce the assembly difficulty of the nail bin for being used for surgical instruments, and canIt prevents from the protrusion of nail bin to be embedded in be sewn in tissue.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connectIt connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediaryThe interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the artFor, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be withIt is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature existsSecond feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative ofFirst feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal 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 specific features, structure, material or spy described in conjunction with this embodiment or examplePoint is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are notIt must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in officeIt can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this fieldArt personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examplesIt closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is exampleProperty, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentionedEmbodiment is changed, modifies, replacement and variant.