Background technology
In abdominal cavity inspection, abdominal operation and other minimally invasive or surgical operations, puncture outfit is essential operating theater instruments.Puncture outfit can be set up in the stomach wall of human body and enter passage, so as to for stapler or other operating theater instruments (such as endoscope, cutKnife, seal wire, conduit, filter, support etc.) enter intraperitoneal, and the passage of gas turnover is provided, to control the gas needed for operationAbdomen, to be checked or operation technique.The puncture outfit includes puncturing core bar and puncture cannula, and the puncture cannula forms instituteState and enter passage.Seal assembly is provided with the puncture cannula, the seal assembly can avoid operating theater instruments from entering patient's abdomenChamber and there is gas leakage during to abdominal cavity of patients's aeration, the seal assembly includes sealing shroud and sealing gasket.
When invasive anastomat medical operating starts, doctor is general first to scratch a small otch in patient's belly, then will wearMoved down while the small otch that the summit alignment of barbed end is scratched or so reciprocating rotation, puncture outfit makes puncture cannula pass through patientBelly cortex.After the completion of puncture, the puncture core bar of puncture outfit is extracted, so that puncture cannula turns into operating theater instruments enters patient's abdomenChamber and the passage to abdominal cavity of patients's aeration.
As shown in figure 1, the sealing shroud 1 ' in the sealing device of existing puncture outfit includes：Seal body 10 ' and installation are convexSide 20 '.Wherein, the seal body 10 ' includes playing the potted component 11 ' of sealing function, and the potted component 11 ' may be selectedProperty open or close.The sealing shroud 1 ' is installed in the puncture cannula by the installation chimb 20 ', the puncture cannulaThe installation chimb 20 ' is compressed, so as to the fastening for realizing the sealing shroud 1 ' is installed.
However, when being extracted in puncturing core bar, the passage that stapler or other operating theater instruments are set up from puncture outfit, by instituteState installation chimb 20 ' to be compacted, in this way, based on the related effect between the seal body 10 ' and installation chimb 20 ', instituteInstallation chimb 20 ' is stated while be compacted, the closing motion of the potted component 11 ' of the seal body 10 ' will also be limited, such asThis causes the potted component 11 ' cannot to recover to original state, and then tight closure.Further, since the sealing shroud 1 'The elastic restoring force of potted component 11 ' is relatively small, is built from puncture outfit when core bar, stapler or other operating theater instruments are puncturedWhen being extracted in vertical passage, further such that the potted component 11 ' cannot tight closure.
Therefore, regarding to the issue above, it is necessary to propose further solution.
The content of the invention
In view of the shortcomings of the prior art, the present invention is intended to provide a kind of sealing shroud and the puncture outfit with the sealing shroud, withOvercome the deficiencies in the prior art.
For achieving the above object, the present invention provides a kind of sealing shroud, including：Seal body and installation chimb；
The seal body includes：Sealed cylinder and some sealing flaps, the sealed cylinder have upper end open withEnd opening, the installation chimb is located at the upper end open of the sealed cylinder, upper end and the sealing of some sealing flapsThe edge of the lower ending opening of cylinder is connected, and the lower edge of some sealing flaps is abutted or separated so that described closeThe lower ending opening of sealed tube body is selectively opened or closes；Any sealing flap has top surface and bottom surface, and the bottom surface offersAuxiliary closed slots, the auxiliary closed slots extends to the lower end of the sealing flap from the upper end of the sealing flap.
Used as the improvement of sealing shroud of the invention, in any sealing flap, the auxiliary closed slots is located at the sealingThe centre position of valve.
Used as the improvement of sealing shroud of the invention, the auxiliary closed slots is V-shaped groove.
As the improvement of sealing shroud of the invention, be additionally provided with isolation channel on the medial surface of the sealed cylinder, it is described everyIt is circumferentially disposed along the medial surface from groove.
Used as the improvement of sealing shroud of the invention, the isolation channel sets along the circumferentially continuous of the medial surface or intervalPut.
Used as the improvement of sealing shroud of the invention, the isolation channel is set near the upper end open of the sealed cylinder.
As the improvement of sealing shroud of the invention, some bulge-structures are additionally provided with the lateral surface of the sealed cylinder.
Used as the improvement of sealing shroud of the invention, the quantity of the sealing flap is two, and two sealing flaps are symmetrical arranged.
Used as the improvement of sealing shroud of the invention, the quantity of the sealing flap is three, three lower edges of sealing flapCan abut, and in Y-shaped；Or the quantity of the sealing flap is four, four lower edges of sealing flap cooperate,And in cross.
For achieving the above object, the present invention provides a kind of puncture outfit including sealing shroud as described above, described to wearThorn device includes puncturing core bar and puncture cannula, and seal assembly is provided with the puncture cannula, and the seal assembly includes describedSealing shroud.
Compared with prior art, the beneficial effects of the invention are as follows：Sealing shroud of the invention is by the bottom of the sealing flapFace opens up auxiliary closed slots, is conducive to puncturing the closure of the sealing flap after core bar, stapler or other operating theater instruments are extracted.ThisOutward, sealing shroud of the invention on the medial surface of sealed cylinder by setting isolation channel, in this way, it is close to overcome installation chimb limitationThe problem that sphragis is freely closed, improves the sealing of sealing shroud.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finishSame or similar label represents same or similar element or the element with same or like function.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width "," thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " axleTo ", " radial direction ", " circumference ", the orientation of the instruction such as " reciprocal " or position relationship be based on orientation shown in the drawings or position relationship,It is for only for ease of the description present invention and simplifies description, must has rather than the device or element for indicating or implying meaning specificOrientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
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 the description of the invention, " multiple " is meant that at least two, such as two, threeIt is individual etc., unless otherwise expressly limited specifically.
Embodiment below with reference to Description of Drawings is exemplary, it is intended to for explaining the present invention, without being understood thatIt is limitation of the present invention.Each technical scheme of the invention is described in detail with reference to specific embodiment.
As shown in Fig. 2 sealing shroud of the invention 1 includes：Seal body 10 and installation chimb 20.Wherein, the installationChimb 20 is used to realize that installation of the sealing shroud 1 in puncture outfit is fixed.Specifically, the installation chimb 20 is located at the sealing drumOn the medial surface 112 of body 11, some mounting holes 21 are further opened with the installation chimb 20.Preferably, the installation chimb 20It is the loop configuration along the circumferentially continuous setting of the medial surface 112.The seal body 10 and the one of installation chimb 20Shaping, i.e. the sealing shroud is integral type structure, the mode that is integrally formed can be injection etc..In another embodiment, instituteState seal body 10 to be connected with the installation chimb 20, the concrete mode of the connection is common mode in the art, such asBonding, melting and engaging etc..
The seal body 10 includes：Sealed cylinder 11 and some sealing flaps 12.Wherein, the insertion of the sealed cylinder 11Set, and the sealed cylinder 11 has upper end open and lower ending opening, upper end and the sealing of some sealing flaps 12The lower ending opening of cylinder 11 is connected, and the lower ending opening realizes selectively opened or closure by some sealing flaps 12.It should be noted that " upper end " referred to herein and " lower end " be with puncture outfit puncture core bar puncture direction as reference direction, i.e. the direction by " upper end " sensing " lower end " is the puncture direction for puncturing core bar.Similarly, it is following " on ", D score is with describedThe puncture direction for puncturing core bar is reference direction.Additionally, the puncture direction of the puncture core bar refers to, the point for puncturing core barThe pointed direction in end.
Specifically, core bar, stapler are punctured or during other operating theater instruments when insertion, puncture core bar, stapler or otherUnder the active force that operating theater instruments applies, some sealing flaps 12 are separated from each other, so that lower ending opening is opened, puncture cannula is internally formedCan supplied gas circulation passage.Now, some sealing flaps 12 puncture core bar, stapler or other operating theater instruments and connect with insertionTouch, sealed.When puncture core bar, stapler or other operating theater instruments are extracted, core bar, stapler or other surgical devices are puncturedThe active force that tool applies is disappeared, and some sealing flaps 12 are closed automatically under natural resiliency restoring force and the effect of gas shock power,So as to the lower ending opening respective closed of the sealed cylinder 11.Now, the lower edge of some sealing flaps 12 cooperates,Lower ending opening is closed by some sealing flaps 12, and the air-flow of the top and bottom of some sealing flaps 12 cannot circulate, so as to realize human abdominal cavitySealing between external environment condition.
Further, in above-mentioned implementation method, for the ease of the automatic closure of some sealing flaps 12, and form good closeEnvelope.Isolation channel 110 is additionally provided with the medial surface 112 of the sealed cylinder 11, the isolation channel 110 is along the medial surface 112It is circumferentially disposed.The isolation channel 110 along the medial surface 112 circumferentially continuous or interval setting, it is preferable that the isolationGroove 110 along the medial surface 112 circumferentially continuous setting.
Due to the related effect between the sealed cylinder 11 and installation chimb 20, so that, pacified chimb 20 is installedWhile dress is compressed, the motion of the sealing flap 12 being connected with the sealed cylinder 11 will also be limited.So as to by settingThe isolation channel 110 is put, is conducive to releasing 20 pairs of limitations of the motion of the sealing flap 12 of the installation chimb, if so as to be conducive toThe automatic closure of dry seal valve 12, improves the sealing of sealing shroud.In order that obtaining the isolation channel 110 has preferably isolationEffect, the isolation channel 110 is set near the upper end open of the sealed cylinder 11.
The shape of the isolation channel 110 can as needed carry out adaptability design, for example, the section of the isolation channel 110Shape can be U-lag, V-shaped groove, rectangular channel etc., as long as described installation 20 pairs of sealing flaps 12 of chimb can be released movingThe isolation moat structure of limitation, belong to inventive concept of the invention enlightenment under obtain technical scheme, belong to the present invention everyFrom the alternate embodiments of groove.
As shown in figure 3, further, some bulge-structures are additionally provided with the medial surface 112 of the sealed cylinder 11111, some bulge-structures 111 are located at the lower section of the isolation channel 110.When sealing shroud of the invention is installed on puncture cannulaWhen middle, some bulge-structures 111 lean with the puncture cannula, by the two against the puncture cannula can be rightSome bulge-structures 111 act power, and the active force that some bulge-structures 111 can be subject to is transferred to describedOn sealed cylinder 11.So as under the drive of the active force being subject to, the sealed cylinder 11 can be further driven to described some closeSphragis 12 is closed.
As shown in figure 4, used as a kind of implementation method, the puncture cannula 2 includes socket case 201 and is connected to describedPipe sheath 202 in socket case 201, wherein, end cap 203, described sleeve pipe housing 201 are additionally provided with described sleeve pipe housing 201It is connected by the convex tendon 211 inside described sleeve pipe housing 201 with the end cap 203.The hollow setting of the pipe sheath 202,The pipe sheath 202 is connected with described sleeve pipe housing 201.Sealing shroud of the invention 1 is installed on inside described sleeve pipe housing 201,In order that the bulge-structure 111 for obtaining the sealing shroud 1 can be adapted with the interior shape of described sleeve pipe housing 201, it is described anyThe side profile of the bulge-structure 111 is M shapes, and M shapes bulge-structure 111 leans with the convex tendon 211, the convex tendon211 are partially housed in the depression of the M shapes bulge-structure 111.
As shown in figure 3, additionally, for the ease of the sealing after the extraction of core bar, stapler or other operating theater instruments is puncturedThe closure of valve 12, is further opened with aiding in closed slots 121 in the sealing flap 12 of sealing shroud of the invention.Specifically, it is any described closeSphragis 12 has top surface and bottom surface, and the bottom surface offers the auxiliary closed slots 121, described to aid in closed slots 121 from placeThe upper end of sealing flap 12 extends to the lower end of the sealing flap.By setting the auxiliary closed slots 121, the sealing is increasedThe area of the bottom surface of valve 12, in this way, when the extraction of core bar, stapler or other operating theater instruments is punctured, the gas of perfusion in abdominal cavity of patientsBody can fully be acted on the bottom surface of the sealing flap 12 so that sealing flap 12 can be closed automatically, and form good sealing,The sealing of the passage of puncture cannula formation is effectively ensured, it is to avoid the generation of leakage problem.
Further, it is described close because the auxiliary closed slots 121 is hollowly arranged on the bottom surface of the sealing flap 12When recovering to closure state, the auxiliary closed slots 121 can produce the elastic restoring force of indent to sphragis 12, so that auxiliaryHelp the closure of the sealing flap 12.In order that obtaining the sealing flap 12 that the auxiliary closed slots 121 can be place provide uniform rightThe elastic restoring force of title, the auxiliary closed slots 121 is located at the centre position of the sealing flap 12, and preferably, it is describedAuxiliary closed slots 12 is V-shaped groove.
The quantity of the sealing flap 12 can be two, three, four, and greater number of sealing is may also set up as neededValve 12.When sealing flap 12 is two, two sealing flaps 12 are symmetrical arranged.Alternately, the quantity of the sealing flap 12 is threeWhen individual, three lower edges of sealing flap 12 cooperate, and three lower edges of sealing flap 12 are in Y-shaped.Alternately,When the quantity of the sealing flap 12 is four, four lower edges of sealing flap 12 cooperate, and under four sealing flaps 12End margin is in cross.It should be noted that in other embodiments, the quantity of sealing flap 12 can be set to as neededMore than four, the quantity and interconnection mode of sealing flap 12 can also be varied as desired in, and can meet active force when puncturingAnd sealing, it is not illustrated herein.
Based on sealing shroud as described above 1, the present invention also provides a kind of puncture outfit, the puncture outfit include puncturing core bar andPuncture cannula, the puncture core bar is pluggable in puncture cannula.The puncture cannula is formed between human abdominal cavity and outsidePassage, the puncture core bar may be guided the puncture cannula from the otch insertion human abdominal cavity of human abdomen.It is described to puncture setSeal assembly is provided with pipe, the seal assembly includes sealing shroud as described above 1.
In sum, sealing shroud of the invention opens up auxiliary closed slots by the bottom surface of the sealing flap, is conducive to wearingPierce the closure of the sealing flap after core bar, stapler or other operating theater instruments are extracted.Additionally, sealing shroud of the invention is by closeIsolation channel is set on the medial surface of sealed tube body, in this way, overcoming the problem that chimb limitation sealing flap is freely closed of installing, is improveThe sealing of sealing shroud.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connectsConnect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elementsThe connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the artFor, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be withIt is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature existsSecond feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative ofFisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can beOne feature is immediately below second feature or obliquely downward, or is 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 invention or example.In this manual, to the schematic representation of above-mentioned term notIdentical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with officeCombined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this areaArt personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or exampleClose and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is exampleProperty, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentionedEmbodiment is changed, changes, replacing and modification.