A kind of linear anastomat with regulating mechanismTechnical field
This application involves a kind of linear anastomat, especially a kind of linear anastomat with regulating mechanism.
Background technique
At present clinically, the utilization of linear anastomat is fairly common.The action principle of linear anastomat is logicalCross two Handlesets (usual one of handle include nail bin holder assembly, another handle includes resist-nailed seat component) closure withTissue is clamped, the suturing nail in anastomat nail storehouse is then released into forming, tissue is stitched together.Some linear anastomatsWith cutting function, equipped with one cutter, group is woven in be sewn after, tissue that cutter cutting is sewn.
Linear anastomat with the above function includes first handle part and second handle part, first handle partIncluding nail bin holder assembly, second handle portion point includes resist-nailed seat component；Nail bin holder assembly mainly includes demountable nail bin groupPart, locking level, driving assembly；Nail bin groupware generally comprises nail bin, several suturing nails, several push nails, wherein has on nail bin moreRound, hole have included suturing nail, and the upper surface of nail bin is tissue contact surface；Resist-nailed seat component mainly includes resist-nailed seat and shell,Resist-nailed seat includes a nail forming face, and following closely includes multiple rows of nail grooving in forming face.Nail bin holder assembly and resist-nailed seat component can connectIt is connected together, and the locking rod lock by being located at nail bin holder assembly, to be closed the tissue for needing to suture.Driving assembly includesThe push jack of wedge shape can drive the suturing nail in nail bin in resist-nailed seat when driving assembly is moved by the proximate of staplerIt follows closely and is shaped in the nail grooving of forming face.Under normal circumstances, driving assembly further includes a cutter, for being sewn in tissueAfter stapling is closed, tissue is cut among multiple rows of staple line.
In the design of existing linear anastomat, when carrying out identical to different tissues, because of tissue toughness, thickness etc.It is not consistent, especially stomach and lung, when identical length is longer (> 75mm), the tissue thickness of operative site proximally and distallyDifference is more obvious, so the compression of clamped tissue proximally and distally is thick when stapler is closed thicker or thinner tissueDegree can generate inconsistent phenomenon.When the tissue of closure is thicker, the phenomenon that distal compaction thickness is greater than proximal end can be generated, is such as schemedShown in 7, remote organization is with a thickness of L2 when closure, and proximal tissue is with a thickness of L1, L2 > L1 at this time, such case will cause proximal end withThe suturing nail forming nail height of distal end is inconsistent, and distal end forming nail height is excessively high or even cob webbing, and then causes to suture stomatorrhagia,The generation of phenomena such as anastomotic leakage.When the tissue of closure is relatively thin, then the phenomenon that distal compaction thickness is less than proximal end can be generated, such asShown in Fig. 8, L2 < L1 at this time, such case will also result in proximal end and the suturing nail forming nail height of distal end is inconsistent, distal end forming nailIt is high too low, and then lead to remote tissue injury.
The applicant previously applied for a patent " a kind of surgical stapling " and (application number: 201610345074.8) discloses one kindAdjustable stapler makes second handle portion by the way that regulating mechanism is arranged between first handle part and second handle portion pointDivide and the rotation for first handle part is mutually generated by shaft thereon, the tissue thickness after making clamping is proximally and distally reachingTo consistent.However the regulating mechanism is adjustable is limited in scope, and it is inconvenient to adjust operation, to the pressing of tissue after adjustingPower is also difficult to control.
Utility model content
In order to solve the above-mentioned technical problem, the application provides a kind of linear anastomat with regulating mechanism, makes to clampTissue thickness afterwards is proximally and distally reaching consistent, to improve suturing nail forming yield, reduces suture stomatorrhagia, anastomotic leakagePhenomena such as generation.And compared with the existing technology in regulating mechanism for have bigger adjustable range, more suitably pressIt power and is more convenient to operate.
A kind of linear anastomat is provided according to the application, comprising: first handle part, second handle part and adjustingMechanism, the first handle part and second handle are partially assembled into together；The first-hand shank point includes nail bin holder assembly,The nail bin holder assembly includes staple cartridge tray；The second handle portion point includes resist-nailed seat component, and the resist-nailed seat component includes supportingNail seat.
The regulating mechanism is set between nail bin holder assembly and resist-nailed seat component, and the regulating mechanism includes adjusting to dialButton, adjusting slider adjust driving lever, adjust chassis, rotary screw and pressure spring；The adjusting chassis passes through the rotary screw and institutePressure spring is stated to be connected with the nail bin holder assembly；The adjusting slider is connected with the resist-nailed seat component；The adjusting driving lever is located atBetween the adjusting chassis and the adjusting slider.
The adjusting toggle is connected with driving lever is adjusted, and the adjusting driving lever descends both ends to all have at least one step on itFace, the adjusting slider have at least three different step surfaces, the adjusting chassis on the end face for adjusting driving leverAlso there are at least three different step surfaces on the end face for adjusting driving lever；The step surface of adjusting driving lever one end and the adjustingStep surface occlusion on sliding block, the step surface and a step surface on the adjusting chassis for adjusting the driving lever other end are stungIt closes；It when stirring adjusting toggle, adjusts driving lever and rotates with it, generate adjusting driving lever with adjusting slider at one end vertical with step surfaceThe relative displacement in direction, and the relative displacement with step surface vertical direction is generated in the other end and adjusting chassis, and then drive and supportNail seat component generates the rotation relative to nail bin holder assembly, until the tissue thickness after clamping is proximally and distally reaching consistent.
In a specific embodiment, the nail bin holder assembly further include demountable nail bin groupware, locking level,Driving assembly；The nail bin groupware includes nail bin, several push nails, several suturing nails；The locking level is installed in rotation onOn staple cartridge tray, the nail bin holder assembly and the resist-nailed seat component are locked by the locking level longitudinally after being assemblied togetherIt is fixed.
Specifically, the driving component includes push button, percussion push jack, cutter.
Further, there is circular hole, the circular hole and rotary screw, adjusting chassis, adjusting driving lever, adjusting slider are same on staple cartridge trayAxis cooperation.
Further, the adjusting slider is connected by sliding pin with resist-nailed seat component.
Preferably, the regulating mechanism is set to stapler proximal end.
Specifically, the resist-nailed seat component further includes resist-nailed seat pin, shell, and the resist-nailed seat has a nail forming face.
In a preferred embodiment, the step surface on the adjusting slider is with the step surface adjusted on chassis verticalConfiguration is corresponded on direction.
Further, highest step surface and highest step surface on adjusting chassis are right in vertical direction on adjusting sliderTogether, on adjusting slider in contour step surface be aligned in vertical direction with step surface contour on chassis is adjusted, adjust and slideMinimum step surface is aligned in vertical direction with step surface minimum on chassis is adjusted on block.
In one embodiment, setting flag near toggle is being adjusted, instruction adjusts the adjusting direction of toggle.
Preferably, it adjusts driving lever to be made of metal, is unlikely to deform and wears so that adjusting driving lever, and coefficient of friction is small,It is easy to adjust operation.
Made according to the linear anastomat with regulating mechanism of the application by the way that regulating mechanism is arranged on staplerTissue thickness after clamping is proximally and distally reaching consistent, to improve suturing nail forming yield, reduces suture stomatorrhagia, coincideThe generation of phenomena such as mouth fistula.According to the linear anastomat with regulating mechanism of the application compared with the existing technology in have adjustThe stapler of mechanism is saved, there is improved regulating mechanism, contacted and be engaged respectively by the step surface of the upper and lower ends of adjusting driving leverAdjusting slider and the step surface for adjusting chassis, to drive by adjusting driving lever rotation and adjust driving lever in the contact of upper and lower endsThe mobile effect of Relative vertical is generated on face.Regulating mechanism is directly generated by two parts and is vertically moved in the prior art, i.e.,It only generates and vertically moves on a contact surface, improved each step intercaste difference of regulating mechanism is bigger in the application, can adjustThe range of section is broader, so that stapler distal handle jaw is had bigger adjusting angle, it is ensured that after all normal surgicalsTo be organized into nail good, and the case where be not in tissue necrosis.And since there are blood pressure, tissues for the living tissue on human bodyIt is elastic preferable, if pressure force when coincideing is insufficient, it is easy to cause to organize oozing of blood, improved adjusting machine in the application after coincideingPressure force is optimized in structure, increases the pressure force in operation to tissue, while guaranteeing not weigh tissue wounded after coincideing.In addition,Improved regulating mechanism increases the adjusting driving lever an of metal material in the application, to reduce the resistance of adjustment structure, increaseAdd operation comfort, and guarantee the intensity of mechanism.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the linear anastomat of one embodiment of the application；
Fig. 2 is the structural schematic diagram of the regulating mechanism of linear anastomat in Fig. 1；
Fig. 3 is the structural schematic diagram of the adjusting driving lever of regulating mechanism in Fig. 2；
Fig. 4 is the structural schematic diagram of the adjusting slider of regulating mechanism in Fig. 2；
Fig. 5 is the structural schematic diagram on the adjusting chassis of regulating mechanism in Fig. 2；
Fig. 6 is the appearance diagram of the adjusting toggle of regulating mechanism in Fig. 2；
Fig. 7 is that the linear anastomat of the application clamps the schematic diagram before thick tissue is adjusted；
Fig. 8 is that the linear anastomat of the application clamps the schematic diagram before thin tissue is adjusted；
Fig. 9 is that the linear anastomat of the application clamps the schematic diagram after tissue is adjusted.
Specific embodiment
The technical solution in utility model embodiment will be clearly and completely described below, it is clear that described realityExample is applied to be merely a part but not all of the embodiments of the present application.Based on embodiments herein, this field is commonTechnical staff's every other embodiment obtained without creative labor belongs to the application protectionRange.
For convenience of description, " proximal end " occurred in text of the statement, which refers to, depends on proximal operator after operator holds instrumentOne end, " distal end " refer to operator hold instrument after far from operator one end.
Referring to Fig.1-6, this application discloses a kind of linear anastomats of regulating mechanism, comprising: first handle part 10,Second handle part 20 and regulating mechanism 30.
In the present embodiment, the first handle part 10 includes nail bin holder assembly, and the second handle part 20 includes supportingNail seat component.
Referring to attached drawing 1, the nail bin holder assembly includes demountable nail bin groupware, staple cartridge tray 101, locking level 105, drivesDynamic component.The nail bin groupware includes nail bin 107, several push nails 102, several suturing nails 106.The locking level 105 can turnIt is mounted on staple cartridge tray 101 dynamicly.The driving component includes push button 103, percussion push jack 104, cutter 108.
With continued reference to attached drawing 1, the resist-nailed seat component includes resist-nailed seat 203, resist-nailed seat pin 202, shell 201, wherein supportingNail seat 203 has a nail forming face.
The nail bin holder assembly and the resist-nailed seat component can be assemblied together, and pass through the locking on nail bin holder assemblyBar 105 is locked longitudinally.
The regulating mechanism 30 is set between nail bin holder assembly and resist-nailed seat component, more specifically 101 He of staple cartridge trayBetween resist-nailed seat 203.
Preferably, the regulating mechanism 30 is set to stapler proximal end.
Referring to attached drawing 2, the regulating mechanism 30 includes adjusting toggle 301, adjusting slider 302, adjusting driving lever 310, adjustChassis 306, rotary screw 309 and pressure spring 308.The adjusting chassis 306 passes through the rotary screw 309 and the pressure spring 308It is connected with nail bin holder assembly, the adjusting slider 302 is connected by sliding pin 303 with resist-nailed seat component.Circle on staple cartridge tray 101Hole, with rotary screw 309, adjust chassis 306, adjust driving lever 310,302 coaxial cooperation of adjusting slider, as shown in Figure 2.
It adjusts toggle 301 in the regulating mechanism 30 to be connected with driving lever 310 is adjusted, tune can be driven by stirring adjusting toggle 301Driving lever 310 is saved to rotate.Referring to attached drawing 3, the adjusting driving lever 310 all has at least one step surface 3101 in upper and lower ends.GinsengSee that attached drawing 2,4, adjusting slider 302 have at least three step surfaces 3021,3022,3023 on the end face for adjusting driving lever 310.Referring to attached drawing 2,5, adjust chassis 306 also have on the end face for adjusting driving lever 310 at least three step surfaces 3061,3062,3063.Referring to attached drawing 1, the step surface 3101 for adjusting 310 upper end of driving lever is engaged with a step surface of adjusting slider 302, is adjustedThe step surface 3101 of 310 lower end of driving lever step surface corresponding with chassis 306 is adjusted is engaged.The adjusting slider 302 and resist-nailed seatComponent is connected by sliding pin 303.
The adjusting toggle 301 can be stirred according to clamping tissue thickness or so, when stirring adjusting toggle 301, adjusted and dialledBar 310 rotates with it, and adjusts the step surface that is engaged with adjusting slider 302 of driving lever 310 and changes, thus adjust driving lever 310 andThe displacement in vertical stand terrace direction is generated between adjusting slider 302, equally, adjusts the platform that driving lever 310 is engaged with adjusting chassis 306Terrace also changes, to adjust driving lever 310 and adjust the displacement for also generating vertical stand terrace direction between chassis 306.It adjustsThe relative displacement that section driving lever 310 generates in upper and lower both direction makes the tune for adjusting driving lever 310 and being engaged with adjusting driving lever 310Section sliding block 302 generates the displacement relative to the vertical stand terrace direction for adjusting chassis 306 together, and passes through sliding pin 303 in turnResist-nailed seat component is driven to generate the rotation relative to nail bin holder assembly, until the tissue thickness after clamping is proximally and distally reachingUnanimously, such as Fig. 9, L1 ≈ L2 at this time.
In a preferred embodiment, the step surface 3021,3022,3022 on adjusting slider 302 and adjusting chassis 306On step surface 3061,3062,3063 correspond configuration in vertical direction, for example, highest step on adjusting slider 302Face 3021 is aligned in vertical direction with highest step surface 3061 on chassis 306 is adjusted, on adjusting slider 302 in contour platformTerrace 3022 is aligned in vertical direction with step surface 3062 contour on chassis 306 is adjusted, minimum on adjusting slider 302Step surface 3023 is aligned in vertical direction with step surface 3063 minimum on chassis 306 is adjusted.When adjusting, according to clamping groupThe thickness knitted stir adjust toggle 301, thus drive adjust driving lever 310 rotate so that adjust driving lever 310 step surface 3101 withAdjusting slider 302 and the corresponding step surface adjusted on chassis 306 are engaged.
For example, highest step surface 3021 and adjusting chassis when the step surface 3101 and adjusting slider 302 for adjusting driving lever 310When 306 highest step surface 3061 is engaged, the distance between adjusting slider 302 and adjusting chassis 306 are maximum.When adjusting driving lever310 step surface 3101 is engaged with the minimum step surface 3063 of the minimum step surface 3023 of adjusting slider 302 and adjusting chassis 306When, the distance between adjusting slider 302 and adjusting chassis 306 are minimum.
As shown in fig. 6, adjusting settable label 400 near toggle 301, instruction adjusts the adjusting direction of toggle 301.
Further, it adjusts driving lever 310 to be made of metal, is unlikely to deform and wears, and coefficient of friction is small, be easy to adjust behaviourMake.
Made according to the linear anastomat with regulating mechanism of the application by the way that regulating mechanism is arranged on staplerTissue thickness after clamping is proximally and distally reaching consistent, to improve suturing nail forming yield, reduces suture stomatorrhagia, coincideThe generation of phenomena such as mouth fistula.According to the linear anastomat with regulating mechanism of the application compared with the existing technology in have adjustThe stapler of mechanism is saved, there is improved regulating mechanism, contacted and be engaged respectively by the step surface of the upper and lower ends of adjusting driving leverAdjusting slider and the step surface for adjusting chassis, to drive by adjusting driving lever rotation and adjust driving lever in the contact of upper and lower endsThe effect vertically moved is generated on face.Regulating mechanism is directly generated by two parts and is vertically moved in the prior art, i.e., only existsIt generates and vertically moves on one contact surface, improved each step intercaste difference of regulating mechanism is bigger in the application, adjustableRange is broader, so that stapler distal handle jaw is had bigger adjusting angle, it is ensured that the group after all normal surgicalsIt is good to be made into nail, and the case where be not in tissue necrosis.And since there are blood pressure, tissue elasticities for the living tissue on human bodyPreferably, if pressure force when coincideing is insufficient, it is easy to cause to organize oozing of blood, improved regulating mechanism pair in the application after coincideingPressure force is optimized, and increases the pressure force in operation to tissue, while guaranteeing not weigh tissue wounded after coincideing.In addition, this ShenPlease in improved regulating mechanism increase the adjusting driving lever an of metal material, thus reduce the resistance of adjustment structure, increase behaviourMake comfort, and guarantees the intensity of mechanism.
It should be noted that the embodiment in attached drawing is only the more representational embodiment of the application, this field skillArt personnel are readily appreciated that the protection scope of the application not only limits in embodiment limited range in the accompanying drawings, to attachedCombination, deformation, the variation of embodiment are all fallen in the protection scope of the application in figure.
Above disclosed is only several preferred embodiments of the application, cannot limit the power of the application with this certainlySharp range, therefore according to equivalent variations made by the claim of this application, still belong to the application scope.