CN109984789A - Transmission component and surgical incision stapler - Google Patents

Abstract

The invention discloses a kind of transmission component and its surgical incision staplers comprising: the first driving gear structure, rotate gear and driving gear including coaxial arrangement, driving gear are equipped with the second mark；Second driving gear structure, including opposite first flank of tooth and second flank of tooth, first flank of tooth is equipped with third mark and the 4th mark, and the second driving gear structure and driving gear are mutually ratcheting；And character wheel structure comprising body part and the character wheel flank of tooth, the character wheel flank of tooth are equipped with the 5th mark, and the character wheel flank of tooth and the second driving gear structure are mutually ratcheting；Wherein, the line of the second rotation center of the first rotation center of the first driving gear structure to the second driving gear structure is first line of centres, and the second mark and the distribution of third mark are thereon and/or its two sides；The third rotation center of character wheel structure to the line between the second rotation center is second line of centres, and the 4th mark and the distribution of the 5th mark are thereon and/or its two sides.

Description

Transmission component and surgical incision stapler

Technical field

The present invention relates to a kind of transmission components and surgical incision stapler for surgical medical equipment, belong to surgical instruments Field.

Background technique

Surgical incision stapler such as endoscope-assistant surgery instrument because lesser notch can be formed, convenient for postoperative rehabilitation and by Be widely used in general surgery, thoracic surgery, gynaecology, in pediatric surgical operation.Surgical incision stapler uses stapler principle, leads to The staggered suture needle of straight line is crossed, closing suture is carried out to internal organs or notch during surgery.Surgical incision stapler has suture Neatly, the feature that suture mouth fastness is reliable, haemostatic effect and blood fortune holding are good.

Fig. 1 is the partial structure diagram of existing surgical incision stapler.

As shown in Figure 1, the feed operation of surgical incision stapler 100 and withdrawing operation are often by firing handle 118 It is realized with transmission component cooperation, transmission component includes the first driving gear structure 111, the second driving gear structure 112, resets Gear structure 113, character wheel structure 116 and drive rack 114, the first driving gear structure 111 include the turning gear of coaxial arrangement 111a and driving gear 111b are taken turns, rotate gear 111a and rack gear 114 are mutually ratcheting, drive gear 111b and the second driving gear knot Structure 112 is mutually ratcheting, and surgical incision stapler 100 is respectively set with reseting gear structure 113 in the second driving gear structure 112 The opposite two sides of dextral handle 115.Wherein, when surgical incision stapler 100 executes feed operation, transmission component is for driving Cutter device (not shown) is mobile towards operating side 117, and makes the rotation of character wheel structure 116 to prompt user's surgery cuts The current use state of stitching unstrument 100；When surgical incision stapler 100 executes withdrawing operation, pass through the second driving gear knot Structure 112 and reseting gear structure 113 drive the driving gear 111b of the first driving gear structure 111 to rotate jointly, drive gear 111b drives rotate gear 111a rotation, and rotate gear 111a drives drive rack 114 to move towards the opposite direction in operating side 117 It is dynamic, it is resetted so that cutter device is (not shown).Operation is accurately cut and resetted in order to realize, needs that transmission is accurately arranged Positional relationship between each element of component, and the installation of the above-mentioned transmission component of existing surgical incision stapler 100 often needs The operator for being familiar with relative position between each element of above-mentioned transmission component could complete, for being unfamiliar with above-mentioned drive mechanism Operator tend not to complete the structure energy after accurately the assembling and ensure to assemble of above-mentioned transmission component and dextral handle 115 Enough realize its expected function.

Therefore, how the feature of transmission component is changed so that operator can be smoothly by transmission component and right side Handle is assembled, and can guarantee that the structure after assembling can be realized its expected function is the emphasis that the present invention studies.

Summary of the invention

In view of the deficiencies of the prior art, the present invention is intended to provide a kind of transmission component and its surgical incision stapler, especially It is by adding assembling mark on each element of transmission component, so that can accurately assemble between transmission component.

The present invention provides a kind of transmission component, is used for surgical incision stapler, which includes: the first driving gear Structure comprising the rotate gear and driving gear, the driving gear of coaxial arrangement are equipped with the second mark；Second driving gear Structure comprising opposite first flank of tooth and second flank of tooth, first flank of tooth are equipped with third mark and the 4th mark, this second Driving gear structure and the driving gear are mutually ratcheting；And character wheel structure comprising body part and the character wheel flank of tooth, the character wheel tooth Face is equipped with the 5th mark, and the character wheel flank of tooth and the second driving gear structure are mutually ratcheting；Wherein, the first driving gear knot Structure has the first rotation center, which has the second rotation center, defines first rotation center and extremely should Line between second rotation center is first line of centres, and second mark and the third mark are distributed in first center company On the line and/or two sides of first line of centres；The character wheel structure has third rotation center, defines the third rotation center extremely Line between second rotation center is second line of centres, and the 4th mark and the 5th mark are distributed in second center company On the line and/or two sides of second line of centres.

Optionally technical solution, first line of centres and second line of centres be not be overlapped.

Optionally technical solution, one of second mark and the third mark are to include one first to assemble Mark, second mark and the third mark it is wherein another be include that a pair second assembles mark, in second mark with When the third mark is aligned, this one first assembling mark is aligned the centre in a pair second assembling mark.

Optionally technical solution, one of the 4th mark and the 5th mark are a third assembling note Number, the 4th mark and the wherein another of the 5th mark assemble mark for a pair of of third, in the 4th mark and the 5th When mark is aligned, which is aligned the centre in a pair the 4th assembling mark.

Optionally technical solution further includes drive rack, and the drive rack and the rotate gear are mutually ratcheting, this turn The first mark is provided on moving gear, which has the first ratcheting slot, which is set to the rotate gear On first tooth, wherein in assembling in the first driving gear structure to the drive rack, which is inserted into the first ratcheting slot In, the first ratcheting slot position is in the drive rack close to the end of the operating side of the surgical incision stapler.

Optionally technical solution, the drive rack and the rotate gear are mutually ratcheting, are provided in the rotate gear First mark, the drive rack have adjacent the first ratcheting slot and the second ratcheting slot, which includes a pair of of recess knot Structure, a pair of sunk structure are set on adjacent the first tooth and the second tooth of the rotate gear, wherein in assembling first master On movable tooth wheel construction to the drive rack, which is inserted into the first ratcheting slot, which is inserted into the second ratcheting slot In, the first ratcheting slot and the second ratcheting slot position are in the drive rack close to the end of the operating side of the surgical incision stapler Portion.

Optionally technical solution further includes reseting gear structure, the reseting gear structure and second driving gear Structure setting is in the opposite sides of the surgical cutting and stapling instrument；Wherein, which includes the opposite third flank of tooth With the 4th flank of tooth, which is equipped with the 6th mark, and the 4th flank of tooth and second flank of tooth are adjacent and opposite.

Optionally technical solution, the reseting gear structure further include the first evacuation opening and the second evacuation opening, are somebody's turn to do 6th mark is located between the first evacuation opening and the second evacuation opening.

Optionally technical solution, further includes the panel ratcheting with the reseting gear structure, which includes multiple embedding Plate sliding tooth, after the reseting gear and panel assembling, the panel sliding tooth positioned at the panel end is inserted into the reset tooth In the first evacuation opening of wheel.

The present invention also separately provides a kind of surgical incision stapler, which includes transmission group as described above Part.

Compared with prior art, transmission component of the invention is located at third mark on the second driving gear and is located at first The second mark on driving gear is distributed on the line of centres of the first driving gear and the second driving gear respectively or center The two sides of line, and the third mark being located on the second driving gear is distributed in respectively with the 5th mark being located in character wheel structure On second driving gear and the line of centres of the character wheel structure or two sides of the line of centres, so that between each transmission gear and rack gear Realize accurate assembling.In addition, also make can between reseting gear and panel for the setting for the 6th mark being set on reseting gear Accurate assembling, further improves the yield and production efficiency of assembling product.

Detailed description of the invention

Fig. 1 is the partial structure diagram of existing surgical incision stapler.

Fig. 2 is the partial structure diagram of surgical incision stapler of the invention.

Fig. 3 is the decomposition diagram of transmission component in Fig. 2.

Fig. 4 is the schematic diagram in another visual angle of the second driving gear in Fig. 3.

Fig. 5 is the schematic diagram after the transmission component assembling in Fig. 3.

Fig. 6 is the schematic diagram after the transmission component in Fig. 3 assembles under another visual angle.

Fig. 7 is the schematic diagram of the part-structure under another visual angle of surgical incision stapler of the invention.

Fig. 8 to Fig. 9 is schematic diagram of the reseting gear under different perspectives in Fig. 7.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.It is retouched in of the invention In stating, 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", " clockwise ", " counterclockwise ", " axis To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings.In addition, art Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least One this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise bright It is really specific to limit.

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 understand For limitation of the present invention.

Fig. 2 is the partial structure diagram of surgical incision stapler of the invention, and Fig. 3 is the decomposition of transmission component in Fig. 2 Schematic diagram.

As shown in Figure 2 to Figure 3, surgical incision stapler 200 includes transmission component, and transmission component includes the first driving gear Structure 211, the second driving gear structure 212, reseting gear structure 213, character wheel structure 216 and drive rack 214, second actively Gear structure 212 and reseting gear structure 213 are respectively arranged at the opposite two sides of dextral handle 215, the first driving gear knot Structure 211 includes the rotate gear 211a being coaxially disposed and driving gear 211b, rotate gear 211a and 214 upper rack of drive rack Sliding tooth 2141 is mutually ratcheting, and driving gear 211b and the second driving gear structure 212 are mutually ratcheting；Second driving gear structure The 212 character wheel flank of tooth 2162 with character wheel structure 216 ratcheting simultaneously；Wherein, driving gear 211b and character wheel structure 216 are distributed in the The two sides of the plane of rotation of two driving gear structures 212, for example, driving gear 211b is located at the plane of rotation of second gear structure 212 Left side region on the lower side, character wheel structure 216 is located at the right side region on the upper side of the plane of rotation of second gear structure 212.

In the present embodiment, the rotate gear 211a and driving gear 211b of coaxial arrangement refer to rotate gear 211a and driving Gear 211b can be sheathed in same shaft, and be rotated together under the drive of same shaft；Alternatively, rotate gear 211a's turns Dynamic center and the center of rotation of driving gear 211b are overlapped.It is driven it is worth noting that, the diameter of rotate gear 211a is greater than The diameter of moving gear 211b, and the number of teeth of rotate gear 211a is more than the number of teeth of driving gear 211b, preferably, rotate gear The number of teeth of 211a is twice of the number of teeth for driving gear 211b, for example, the number of teeth of rotate gear 211a is 24, drives gear The number of teeth is 12, wherein each dentalation is located at the adjacent two dentation knot of rotate gear 211a in driving gear 211b Between structure.

To make the assembling of said elements in transmission component more convenient and accurate, the present invention passes through in the specified of each element Setting assembling mark (or assembling mark) on position, so that the assembling of said elements is only needed according to assembling mark assembling The accurate assembling of each element is completed, and each element after assembling is able to achieve its expected function.This set assembles mark Mode, even also can will be accurate group between each element of transmission component to the unfamiliar operator of the structure of suture cutter Dress, thus significantly improve the packaging efficiency of surgical incision stapler and the yield of product after assembling.

Assembling mark includes multiple in the present invention, is distributed in the multiple element of transmission component.

As shown in figure 3, the first driving gear structure 211 has the first mark 10 and the second mark 20, the first mark 10 is set It is placed on rotate gear 211a, the second mark 20 is set on driving gear 211b；Second driving gear structure 212 has third Mark 30 and the 4th mark 40, the second driving gear structure 212 include first flank of tooth 2121 and second flank of tooth 2122 opposite to each other, the Three marks 30 and the 4th mark 40 are all set on first flank of tooth 2121；Wherein, the first driving gear structure 211 and the second active After gear structure 212 assembles, second flank of tooth 2122 is neighbouring and faces rotate gear 211a.

Character wheel structure 216 includes the 5th mark 50, and character wheel structure 216 includes ontology 2161, the annular appearance of ontology 2161 Multiple characters are set on face, and character is, for example, number, letter, pattern or combinations of the above, and word is arranged in the side of ontology 2161 Take turns the flank of tooth 2162, wherein the 5th mark 50 is set on the character wheel flank of tooth 2162.

In the present embodiment, the first mark 10 is for example including a pair of of circular recess structure, preferably, a pair of of circular recess structure It is set on the turning gear of rotate gear 211a；Second mark 20 is for example including a circular recess structure, preferably, a circle Shape sunk structure is set in the sliding tooth of driving gear 211b.

With continued reference to Fig. 2 and Fig. 3, the second driving gear structure 212 is rotated along shaft part R1, definition perpendicular to turn The direction of shaft member R1 is shaft normal direction h1, and third mark 30 and the 4th mark 40 are distributed in the two of shaft normal direction h1 Side, wherein third mark 30 and the 4th mark 40 respectively include a pair of of circular recess structure.In addition, being set to the character wheel flank of tooth The 5th mark 50 on 2162 is, for example, triangular hill structure.

It is notably the shape of 10 to the 5th mark 50 of the first mark to be not particularly limited in the present invention, that is, first The shape of 10 to the 5th mark 50 of mark for example including but be not limited to, ellipse, rectangle, shape changeable etc. are regularly or irregularly schemed Case.In other embodiments of the present invention, above-mentioned first mark, 10 to the 5th mark 50 can also be replaced by character, number or its group It closes.

In addition, the pattern that the present invention is also not particularly limited each mark in 10 to the 5th mark 50 of the first mark is constituted, example Such as, in another preferably embodiment of the present invention, the first mark 10 may include a circular recess structure, and the second mark 20 can Including a pair of of circular recess structure, third mark 30 may include a circular recess structure, and the 4th mark 40 can be triangle Bulge-structure, the 5th mark 50 may include a pair of of sunk structure.Wherein, the second mark 20 is used to carry out pair with third mark 30 Standard, the 4th mark 40 are aligned with the 5th mark 50.

In other words, one of the second mark 20 and third mark 30 are, for example, including one first assembling in the present invention Mark, the second mark 20 and third mark 30 one of them be, for example, include that a pair second assembles mark, in the second mark 20 in When third mark 30 is aligned, one first assembling mark alignment a pair second assembles the centre of mark；4th mark 40 and the 5th One of mark 50 is that third assembles mark, the 4th mark 40 and the 5th mark 50 it is wherein another for a pair the Four assembling marks, when the 4th mark 40 is aligned with the 5th mark 50, a 4th assembling note of third assembling mark alignment a pair Centre in number.In the present embodiment, as shown in figure 3, one first assembling mark is, for example, a circular recess structure, Yi Dui Two assembling marks are a pair of of circular recess structure；One third assembling mark is, for example, triangular hill structure, a pair the 4th Assembling mark is, for example, a pair of of circular recess structure.

Furthermore, the present invention be equally not particularly limited above-mentioned circular recess structure depth, diameter and triangle it is convex Play the height (or thickness) of structure, that is, if the setting of above-mentioned mark under the premise of not influencing each element function, can be by Operator's identification, the design of above-mentioned mark will can be realized the function of significant prompt.

Fig. 4 is the schematic diagram in another visual angle of the second driving gear in Fig. 3, and Fig. 5 is the transmission component assembling in Fig. 3 Schematic diagram afterwards, Fig. 6 are the schematic diagram after the transmission component in Fig. 3 assembles under another visual angle.

To make to be more clearly understood that how above-mentioned assembling mark realizes the first driving gear structure 211, the second driving gear Structure 212, character wheel structure 216 and drive rack 214 accurately assemble, and below in conjunction with diagram, detailed description are as follows.

As shown in Figures 3 to 6, the first mark 10 is, for example, a pair of of circular recess structure, a pair of of circular recess structure distribution In on the first tooth and the second tooth adjacent on rotate gear 211a；Second mark 20 is, for example, a circular recess structure, point It is distributed on the third tooth of driving gear 211b；Third mark 30 is, for example, a pair of of circular recess structure, a pair of of circular recess structure It is distributed on the 4th tooth and the 5th tooth of the second driving gear structure 212；4th mark 40 is, for example, a pair of of circular recess structure, A pair of of circular recess structure distribution is on the 6th tooth and the 7th tooth of the second driving gear structure 212；5th mark 50 is, for example, One triangular hill structure, a triangular hill structure distribution is in the octadentate of the character wheel flank of tooth 2162 of character wheel structure 216 On.

When assembling the first driving gear structure 211 to drive rack 214, so that having the first note on rotate gear 211a Numbers 10 the first tooth and the second tooth are inserted into the first ratcheting slot and the second ratcheting slot of drive rack 214 respectively, wherein first is ratcheting Slot and the second ratcheting slot acoustic filed rack gear 214 are close to suiting on the end of operating side 217 of stitching unstrument 200；In assembling second On the driving gear 211b of 212 to the first driving gear structure 211 of driving gear structure, so that the second mark 20 and third mark 30 align, that is, and a circular recess structure of the second mark 20 is located between two circular recess structures of third mark 30, At this point, driving gear 211b on circular recess structure third tooth be inserted into the second driving gear structure 212 the 4th tooth and In the ratcheting slot of third between 5th tooth；It assembles on 216 to the second driving gear 212 of character wheel, the 4th mark 40 and the 5th mark 50 align, that is, and the triangular hill structure of the 5th mark 50 is located between two circular recess structures of the 4th mark 40, this When, the octadentate of the upper setting triangular hill structure of the character wheel flank of tooth 2162 is inserted into the 6th tooth of the second driving gear structure 212 And in the 7th the 4th ratcheting slot between tooth.

Wherein, the first mark 10 is illustrated by taking a pair of of circular recess structure as an example, and but not limited to this.The present invention its In his embodiment, the first mark 10 can only have a circular recess structure, and the first tooth with circular recess structure, which is inserted into, to be driven In the ratcheting slot of the first of carry-over bar 214, the first ratcheting slot position is in the end of the close operating side 217 of drive rack 214.

To close the more clear relative position accurately illustrated between 10 to the 5th mark 50 of the first mark of the invention System, illustrates referring to figure 5. and below.

As shown in figure 5, the first driving gear structure 211 has the first rotation center C1, the second driving gear structure 212 tool Having the second rotation center C2, the first rotation center C1 of definition to the line between the second rotation center C2 is first line of centres S1, wherein for the second mark 20 for example with a circular recess structure, a circular recess structure is located at the first line of centres S1 On, third mark 30 is for example with a pair of of circular recess structure, and a pair of of circular recess structure distribution is in the first line of centres S1's Two sides；Conversely, a pair of of circular recess structure distribution is in the first center if the second mark 20 is for example with a pair of of circular recess structure The two sides of line S1, third mark 30 have a circular recess structure, and a circular recess structure is located at first line of centres On S1；That is, the second mark 20 and third mark 30 be distributed on the first line of centres S1 and/or the first line of centres S1 two Side.Character wheel structure 216 has third rotation center C3, defines third rotation center C3 to the line between the second rotation center and is Second line of centres S2, wherein the 4th mark 40 for example with a pair of of circular recess structure, a pair of of circular recess structure distribution in The two sides of second line of centres S2, the 5th mark 50 is for example with a triangular hill structure, a triangular hill structure On the second line of centres S2；Conversely, if a 4th mark 40 such as triangular hill structure, a triangular hill knot Structure is located on the second line of centres S2, and the 5th mark 50 is for example with a pair of of circular recess structure, a pair of of circular recess structure point It is distributed in the two sides of the second line of centres S2；That is, the 4th mark 40 and the 5th mark 50 be distributed on the second line of centres S2 and/or The two sides of second line of centres S2.In the present embodiment, the first line of centres S1 intersects with the second line of centres S2 and has a folder Angle, angle are not equal to 0 ° or 180 °, or meaning, the first line of centres S1 are not overlapped with the second line of centres S2.In addition, in first Heart line S1 and the second line of centres S2 be for the first mark 10 of clear explanation to relativeness between the 5th mark 50 and The virtual line segment defined, and the line segment of non-actual existence.

With continued reference to Fig. 3 and Fig. 4 it is found that first flank of tooth 2121 and second flank of tooth 2122 of the second driving gear structure 212 With different structures, and different structures is its object is to realize expected function, and then makes above-mentioned first note of the invention The optimal mode in setting position of number 10 to the 5th marks 50 is the position as shown in Fig. 3 to Fig. 6, that is, the first mark 10 to When above-mentioned position is deviateed in the setting position of 5th mark 50, to realize that its expectation function can be more after each element pair groups of transmission component Difficulty, alternatively, its expectation function cannot be fully achieved.Although in addition, above description do not specify the first mark 10 setting position, But it is to be understood that when 20 to the 5th mark 50 of the second mark relative positional relationship determine after, the setting of the first mark 10 Optimal location have and position of the only Fig. 3 into Fig. 6.

In the present embodiment, first flank of tooth 2121 of the second driving gear structure 212 is equipped with notch section 2123, and notch section passes through It wears first flank of tooth 2121 while not extending on second flank of tooth 2122, is i.e. second flank of tooth 2122 is a smooth plane, notch section 2123 its object is to avoid reset button (not shown).

Fig. 7 is the schematic diagram of the part-structure under another visual angle of surgical incision stapler of the invention, and Fig. 8 to Fig. 9 is Schematic diagram of the reseting gear under different perspectives in Fig. 7.

As shown in fig. 7, transmission component further comprises reseting gear structure 213 and panel 2181, panel 2181 is combined In firing handle 218, when surgical incision stapler 200 executes cutter device reset (not shown) and operates, reseting gear knot Structure 213 and the second driving gear 212 drive the driving gear 211b of first gear structure 211 to rotate jointly, due to driving gear 211b and rotate gear 211a is coaxially disposed, and therefore, rotate gear 211a is rotated with the rotation of driving gear 211b, is rotated Gear 211a is rotated and the drive rack 214 ratcheting with it is driven to move, so that drive rack 214 is directed away from operating side 217 The direction of (as shown in Figure 2) is moved, and drive rack 214 pulls cutter device connected to it to exit and answer from operating side 217 Position.

Reseting gear structure 213 has opposite the third flank of tooth 2131 and the 4th flank of tooth 2132, and the 4th flank of tooth 2132 is neighbouring Dextral handle 215, the 6th mark 60 is arranged on the third flank of tooth 2131, and reseting gear structure 213 further includes the first evacuation opening 2133 and second evacuation opening 2134, the 6th mark 60 be located at first evacuation opening 2133 and second evacuation opening 2134 between, And the 6th mark 60 correspond to the third flank of tooth 2131 first evacuation opening 2133 and second evacuation opening 2134 between the 9th Tooth setting.There is multiple panel sliding tooths 2182, multiple panel sliding tooths 2182 and the mutual tooth of reseting gear 213 on panel 2181 It closes, and reseting gear 213 is driven to rotate.Wherein, surgical incision stapler 200 is multiple before executing the reset operation of cutter device 5th ratcheting slot of the 9th tooth insertion panel 2181 on the gear 213 of position, the 5th ratcheting slot are distributed in panel 2181 by near operation The end at end 217；Or meaning, in first evacuation of the insertion of panel sliding tooth 2182 opening 2133 of 2181 end of panel, wherein Panel sliding tooth 2182 positioned at the end of panel 2181 refers to panel sliding tooth of the panel 2181 close to the end of operating side 217 2182。

As shown in Fig. 8 to Fig. 9, the first evacuation opening 2133 runs through the third flank of tooth 2131 and the 4th flank of tooth 2131, and second keeps away It allows opening 2134 completely through the third flank of tooth 2131 and part is through the 4th flank of tooth 2312；In the first evacuation opening 2133 and second Evacuation opening 2134 is for avoiding the two panel sliding tooths 2182 adjacent on the end of operating side 217 of panel 2181；It leans on The panel sliding tooth 2182 of the end of nearly panel 2181 is completely embedded into the first evacuation opening 2133, the end far from panel 2181 2182 part of panel sliding tooth in portion is embedded in the second evacuation opening 2134.

By Fig. 8 and Fig. 9 it is found that the third flank of tooth 2131 and the 4th flank of tooth 2132 of reseting gear structure 213 also have difference Structure, its purpose of different structures is equally to realize expected function, and in order to achieve the purpose that realize expectation function, multiple Position gear structure 213 has an original state when being assembled to and suiting in stitching devices 200, and original state makes the present invention In, the setting position of the 6th mark 60 becomes optimal assembling mark and position is arranged.

In the present embodiment, the 6th mark 60 is a circular recess structure, and but not limited to this.In other realities of the invention It applies in example, the 6th mark 60 is, for example, a triangular hill structure, that is, is also not particularly limited the 6th mark 60 in the present invention Shape, the design method of the 6th mark 60 can refer to the above-mentioned design method about 10 to the 5th mark 50 of the first mark, herein It does not repeat separately.

To sum up, transmission component provided by the invention and its each element on multiple assembling marks are set, be located at second actively Third mark on gear is distributed in the first driving gear and the second master with the second mark being located on the first driving gear respectively On the line of centres of the moving gear or two sides of the line of centres, and be located at the second driving gear on third mark be located at character wheel The 5th mark in structure be distributed on the line of centres of the second driving gear and character wheel structure respectively or the line of centres two The yield and production efficiency of assembling product are improved so that realizing accurate assembling between each transmission gear and rack gear in side.In addition, setting The setting for the 6th mark being placed on reseting gear also accurately assemble between reseting gear and panel, further improves The yield and production efficiency of assembling product.

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 connect It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field For those of ordinary skill, 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 with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First 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 show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It 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 field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It 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 example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (10)

1. a kind of transmission component, it to be used for surgical incision stapler, which is characterized in that the transmission component includes:

First driving gear structure comprising the rotate gear and driving gear, the driving gear of coaxial arrangement are equipped with second Mark；

Second driving gear structure comprising opposite first flank of tooth and second flank of tooth, first flank of tooth are equipped with third mark And the 4th mark, the second driving gear structure and the driving gear are mutually ratcheting；And

Character wheel structure comprising body part and the character wheel flank of tooth, the character wheel flank of tooth are equipped with the 5th mark, the character wheel flank of tooth and this Two driving gear structures are mutually ratcheting；

Wherein, which has the first rotation center, which has in the second rotation The heart, define first rotation center to the line between second rotation center be first line of centres, second mark and should Third mark is distributed on first line of centres and/or the two sides of first line of centres；The character wheel structure is revolved with third Turn center, defining the third rotation center to the line between second rotation center is second line of centres, the 4th mark And the 5th mark be distributed on second line of centres and/or the two sides of second line of centres.

2. transmission component as described in claim 1, which is characterized in that first line of centres and the bicentric line are not Overlapping.

3. transmission component as described in claim 1, which is characterized in that one of second mark and the third mark are Including one first assembling mark, second mark and the third mark it is wherein another be include that the second assembling of a pair is remembered Number, when second mark is aligned with the third mark, this one first assembling mark is aligned in a pair second assembling mark Centre.

4. transmission component as described in claim 1, which is characterized in that one of the 4th mark and the 5th mark are One third assembles mark, and the 4th mark and the wherein another of the 5th mark assemble mark for a pair the 4th, in this When four marks are aligned with the 5th mark, which is aligned the centre in a pair the 4th assembling mark.

5. transmission component as described in claim 1, which is characterized in that it further include drive rack, the drive rack and the rotation Gear is mutually ratcheting, and the first mark is provided in the rotate gear, which has the first ratcheting slot, which sets Be placed on the first tooth of the rotate gear, wherein in assemble the first driving gear structure to the drive rack on, first tooth It is inserted into the first ratcheting slot, the first ratcheting slot position is in the drive rack close to the end of the operating side of the surgical incision stapler Portion.

6. transmission component as described in claim 1, which is characterized in that the drive rack and the rotate gear are mutually ratcheting, should The first mark is provided in rotate gear, which has adjacent the first ratcheting slot and the second ratcheting slot, first note It number include a pair of of sunk structure, which is set on adjacent the first tooth and the second tooth of the rotate gear, In, in assembling in the first driving gear structure to the drive rack, which is inserted into the first ratcheting slot, second tooth It is inserted into the second ratcheting slot, the first ratcheting slot and the second ratcheting slot position are sutured in the drive rack close to the surgery cuts The end of the operating side of device.

7. transmission component as described in claim 1, which is characterized in that it further include reseting gear structure, the reseting gear structure The opposite sides of the dextral handle of the surgical cutting and stapling instrument is respectively arranged at the second driving gear structure；The reset tooth Wheel construction includes opposite the third flank of tooth and the 4th flank of tooth, which is equipped with the 6th mark, the 4th flank of tooth and this Two flank of tooth are adjacent and opposite.

8. transmission component as claimed in claim 7, which is characterized in that the reseting gear structure further include the first evacuation opening and Second evacuation opening, the 6th mark are located between the first evacuation opening and the second evacuation opening；6th mark is one A circular recess structure or triangular hill structure.

9. transmission component as claimed in claim 7, which is characterized in that it further include the panel ratcheting with the reseting gear structure, The panel includes multiple panel sliding tooths, and after the reseting gear and panel assembling, the panel positioned at the panel end is driven Movable tooth is inserted into the first evacuation opening of the reseting gear.

10. a kind of surgical incision stapler, which is characterized in that the surgical incision stapler includes as claim 1-13 is any one Transmission component described in.