CN206453796U - A kind of polygonal puncture outfit diaphragm seal and puncture device assembly containing groove - Google Patents
A kind of polygonal puncture outfit diaphragm seal and puncture device assembly containing groove Download PDFInfo
- Publication number
- CN206453796U CN206453796U CN201620835788.2U CN201620835788U CN206453796U CN 206453796 U CN206453796 U CN 206453796U CN 201620835788 U CN201620835788 U CN 201620835788U CN 206453796 U CN206453796 U CN 206453796U
- Authority
- CN
- China
- Prior art keywords
- wall
- diaphragm seal
- sealing lip
- angle
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model is related to a kind of polygonal puncture outfit diaphragm seal containing groove and punctures device assembly.The diaphragm seal includes proximal openings and remote stomidium and the sealed wall of proximal openings is extended to from remote stomidium.The remote stomidium is formed by sealing lip, for accommodating the apparatus of insertion and forming hermetic seal.The sealing lip includes central axis and transverse plane substantially vertical with the axis；The sealed wall has proximal end face and distal face.The sealed wall includes flange, main body turret wall and multiple inverted grooves.The main body turret wall includes the first turret wall extended from sealing lip to flange and the second sealed wall extended from flange to sealing lip；First sealed wall and transverse plane formation first angle, and second turret wall and transverse plane formation second angle, the first angle are less than second angle and less than 90 degree.The groove has increase ring girth, reduces and wraps up region, improvement lubricating reliability, the function such as axial extensional rigidity of increase, so as to the larger reduction frictional resistance and reduction stick-slip.
Description
Technical field
The utility model is related to Minimally Invasive Surgery apparatus, more particularly to a kind of puncture outfit sealing structure.
Background technology
Puncture outfit is the artificial channel for entering body cavity in a kind of Minimally Invasive Surgery (especially hard tube endoscope-assistant surgery) for setting up
Operating theater instruments.Generally it is made up of thimble assembly and puncture needle.Its clinical general occupation mode is：First cut on patient skin
Osculum is opened, then puncture needle is run through into thimble assembly, but enters body cavity through penetrating stomach wall at skin openings together.Once into body
Puncture needle is removed after chamber, leaves the passage that thimble assembly passes in and out body cavity as apparatus.
In hard tube endoscope-assistant surgery, it need to generally set up and maintain stable pneumoperitoneum, to obtain enough operation technique spaces.Set
Tube assembly is generally by sleeve pipe, shell, diaphragm seal (also known as instrument seal) and zero sealing (also known as automatic-sealed) composition.Described sleeve pipe
Penetrated outside body cavity to body cavity, the passage of body cavity is passed in and out as apparatus.The shell connects sleeve pipe, zero sealing and diaphragm seal
Into a sealing system.Zero sealing is generally not provided the sealing for insertion instrument, and is closed automatically when apparatus is removed
And form sealing.The diaphragm seal banding apparatus and forms sealing when apparatus is inserted.
In a kind of typical ESS, generally the small internal diameter sleeve pipe of 4 puncture channels, i.e., 2 is set up in patient's stomach wall
Component (usual 5mm) and 2 large diameter thimble assemblies (usual 10~12mm).Generally enter patient via small internal diameter thimble assembly
Internal apparatus is only completed auxiliary operation；One of large diameter thimble assembly is used as endoscope path way；And another large diameter
The main thoroughfare that thimble assembly is performed the operation as doctor.Said main thoroughfare, about 80% time applies 5mm apparatuses；
About 20% time applies other major diameter apparatuses；And 5mm apparatuses need frequent switching with major diameter apparatus in operation.Using small straight
Footpath appliance time is most long, and its sealing reliability is more important；Using during major diameter apparatus often for operation in critical stage (for example
Vessel sealing and tissue apposition), it switches convenience and operation comfort is more important.
Fig. 1 and Fig. 2 depict a kind of thimble assembly 700 of existing typical 12mm specifications.Described sleeve pipe component 700 is wrapped
Containing lower casing 710, upper casing 720 and diaphragm seal 730 between the upper casing 720 and lower casing 710, Duckbill seal 750 are clipped in.The lower casing
710 central through holes 713 limited comprising elongated tubular 711.The upper casing 720 includes the proximal end bore 723 that inwall 721 is limited.It is described
Diaphragm seal 730 includes proximal openings 732, and remote stomidium 733, sealing lip 734, truncated cone sealed wall 735, flange 736 and outside are floating
Dynamic part 737.The distal openings 733 are formed by sealing lip 734.The axis for defining sealing lip is 741, and definition is generally vertically
In the transverse plane 742 of axis 741；It is guiding that the revolution bus of truncated cone sealed wall 735, which is defined, with the angle of the transverse plane 742
Angle ANG1.
Such as Fig. 1, during insertion 5mm apparatuses, it is approximately considered the hoop clamp force that only deformation of sealing lip 734 is produced and ensures for apparatus
Reliable sealing.And when being performed the operation, often need to be from the operating angle apparatus of each limit.5mm apparatuses have very in 12mm sleeve pipes
Big radially movable space, this make it that the radial force of sealing lip 734 is larger.Therefore sealing lip 734 should for the 5mm apparatuses of insertion
There are enough hoop clamp forces just to can guarantee that its sealing reliability.
Such as Fig. 2, make an a diameter of Di(Di＞ 5mm) cylinder intersect with the sealed wall 735, form a diameter of Di's
Intersection 738.If those skilled in the art are necessarily it is appreciated that insert a diameter of DiApparatus, then the sealed wall 735 is from close
The strain (stress) for sealing lip 734 to the region of intersection 738 is larger, and this region is called sealing lip close region (or area of stress concentration
Domain)；And the sealed wall 735 from intersection 738 to the region of flange 736 its strain (stress) it is smaller.The diameter D of insertion instrumenti
Difference, the bounds of the sealing lip close region (region of stress concentration) is of different sizes.For convenience of quantifying, define and work as DiFor
It is sealing lip from sealing lip 734 to the region of the intersection 738 when design passes through the maximum gauge of the operating theater instruments of diaphragm seal
Close region.
Such as Fig. 3, during insertion major diameter apparatus (such as 12.8mm), the sealing lip 734 will swell to it is suitably sized with
Accommodate the apparatus of insertion；The sealed wall 735 is divided into conical walls 735c and cylindrical wall 735d two parts；The cylindrical wall 735d
It is wrapped on apparatus outer surface, forms the parcel region of stress high concentration.Define conical walls 735c and cylindrical wall 735d friendship
Line is 738a；After apparatus is removed, the sealed wall 735 under nature is reverted to, defining the intersection 738a resiliences is
Radius is DxAnnulus 738b (not shown)s；The intersection 738b is bending line of demarcation when inserting major diameter apparatus.It is fixed
Justice conical walls 735c revolution bus and the angle of the transverse plane 742 are ANG2, and ANG2 ＞ ANG1；Insert big
The sealed wall 735 rotates diastole by fulcrum of the intersection of flange 736 and sealed wall 735 during diameter apparatus.Define the cylinder
Wall 735d height is Ha.The HaIt is not definite value, the remote stomidium is of different sizes, the sealing lip size is different, the sealing
Wall wall thickness is different, and the guide angle is different or the not equal factor of insertion instrument diameter will all cause HaIt is different.
When in operation operation insertion diaphragm seal in apparatus movement when, between the parcel region and insertion instrument exist compared with
Big frictional resistance.The larger frictional resistance is typically easy to cause diaphragm seal varus, and operation comfort is poor, operation fatigue, even
Cause thimble assembly to fix the defect such as not firm on patient's stomach wall, influence the performance of thimble assembly.
Caused by the frictional resistance is larger in defect, diaphragm seal varus is influence thimble assembly performance most serious
One of problem.Such as Fig. 4, when outwards extracting major diameter apparatus, easily occurs diaphragm seal varus.The sealed wall after varus
735 are divided into cylindrical wall 735e, conical walls 735f, conical walls 735g；The cylindrical wall 735e is wrapped in apparatus outer surface, is formed
The parcel region of stress high concentration.The height for defining the cylindrical wall 735e is Hb, usual HbMore than Ha；When extracting apparatus
Frictional resistance be more than insertion instrument when frictional resistance；This differentia influence operative doctor operating experience even results in operation doctor
The raw illusion of production.It is more serious, diaphragm seal after varus possibly into proximal end bore 723, i.e. diaphragm seal be deposited in apparatus with it is described
Cause between inwall 721 stuck.Being disclosed respectively in United States Patent (USP) US7112185, US7591802 prevents arranging for diaphragm seal varus
Apply；These measures can effectively reduce varus probability but can not thoroughly solve the problems, such as varus.
Reduce the frictional resistance, simplest method is to reduce the coefficient of friction between two contact surfaces using lubricating grease.But
The reliability of the measure is bad.During clinical practice, due to long-term being scraped with diaphragm seal repeatedly of apparatus, and a variety of apparatuses
Switch repeatedly, lubricating grease is departed from and is pulled away from diaphragm seal surface, so as to cause insufficient lubrication.
A kind of screening glass for being close to diaphragm seal is disclosed in United States Patent (USP) US5342315.The screening glass can both avoid device
The sharp edge of tool damages diaphragm seal, and because screening glass skin-friction coefficient is less than diaphragm seal skin-friction coefficient, therefore can be certain
The reduction frictional resistance of degree.But the sealing lip close region generally can not be completely covered by screening glass.
A kind of diaphragm seal containing muscle is disclosed in United States Patent (USP) US5827228, i.e. diaphragm seal is since near centre bore, tool
There are several muscle radially, the muscle reduces the contact area between insertion instrument and diaphragm seal, so as to reduce the friction
Resistance.A kind of approximate reinforcement is disclosed in European patent EP 0994740 has reduction contact area and increase diaphragm seal axle
To the effect of tensile strength.
A kind of fold shape diaphragm seal is disclosed in United States Patent (USP) US7842014, it is mainly characterized by with corrugated close
Seal lip and undulating pleats seal.The pleated structure can increase ring girth, a certain degree of reduction hoop clamp force.
Disclose in Chinese utility model application CN101480354A (being rejected at present) a kind of containing yielding groove
Diaphragm seal, it is characterised in that since sealing lip, has several yielding grooves on the circular conical surface of diaphragm seal；The yielding groove
Wall thickness be much smaller than the circular conical surface wall thickness；The main major diameter apparatus that insertion is accommodated by the elongation strain of mutability groove.
Although having disclosed the scheme for much reducing the frictional resistance in the prior art, disclosed technical scheme is basic
On only from influence frictional resistance some factor have proposition solution in mind, its reduce frictional resistance effect it is smaller or not clear
It is aobvious.Even other defect is introduced in some schemes because improving a factor.For example on diaphragm seal increase reinforcement, which can be reduced, connects
Contacting surface is accumulated, but can increase hoop clamp force simultaneously；The yielding groove in truncated cone face is much smaller than for example with thickness, can be caused yielding
Easily it is damaged at groove；The ring girth at diaphragm seal opening for example is added according to waveform sealing lip, so as to sacrifice
Using sealing reliability during 5mm apparatuses, do not increase the ring girth at diaphragm seal opening but according to corrugated sealing lip,
Then wave sealing lip has lost improvement result relative to the sealing lip of pure circle.In a word.Influence the factor of the frictional resistance
A lot, the comprehensive function of each factor must be considered from the angle of mechanics and tribology.
Diaphragm seal is generally made up of elastomeric materials such as natural rubber, silicon rubber, isoprene rubbers, and elastomeric material has super-elasticity
And viscoplasticity.Although the mechanical model of rubber deformation process is very complicated, but still can be approximately its bullet is described with generalized Hooke law
Sexual behaviour；Its viscous behavior is described with newton module.Research shows that influence rubber produces frictional force with device contacts
Principal element includes：The smaller then frictional force of coefficient of friction of two contact surfaces is smaller；Lubricating condition between two contact surfaces is more good, rubs
Wipe power smaller；The smaller then frictional force of real contact area between two contact surfaces is smaller；Normal pressure between two contact surfaces is smaller then
Frictional force is smaller.The utility model considers above-mentioned factor, is rubbed between the more perfect reduction diaphragm seal of proposition and insertion instrument
Wipe the solution of resistance.
In addition to aforementioned friction resistance considerable influence thimble assembly performance, diaphragm seal stick-slip is also influence puncture outfit
Another key factor of performance.The stick-slip, i.e., when apparatus is moved axially in sleeve pipe, the sealing lip of diaphragm seal and its face
During near field and geo-stationary adhere on apparatus that (now the frictional force between apparatus and diaphragm seal is mainly static friction
Power)；When and with apparatus produce the relative phenomenon slided (now the frictional force between apparatus and diaphragm seal be mainly dynamic friction
Power)；And the stiction is much larger than the kinetic force of friction.The static friction and dynamic friction are alternately present, and this causes apparatus to exist
The resistance moved in diaphragm seal is unstable and translational speed is unstable.It will be understood by those skilled in the art that in Minimally Invasive Surgery, doctor
Life can only use apparatus to touch patient organ's organ, and by the local model of endoscopic images system monitoring apparatus working head
Enclose.In this limited view, in the case that tactile is blocked, operative doctor generally assign resistance feedback during mobile apparatus as judgement
One of whether normal information of operation technique.Diaphragm seal stick-slip have impact on the comfortableness of operation, positioning accuracy, or even induce doctor
The judgement of raw mistake.
During the use of thimble assembly, the stick-slip is very difficult to avoid completely, but can be reduced.Research shows, institute
State stick-slip is influenceed by two principal elements：One is maximum static friction force and the smaller then stick-slip of kinetic force of friction difference are fainter；Its
Two be diaphragm seal the more big then stick-slip of axial extensional rigidity it is fainter.Avoid the hoop clamp force between diaphragm seal and apparatus excessive,
Reduce the real contact area between diaphragm seal and apparatus, keep the good lubrication between diaphragm seal and apparatus, can reduce most
The difference of big stiction and kinetic force of friction, so as to reduce stick-slip.Increase the axial extensional rigidity of diaphragm seal simultaneously, it helps
Mitigate stick-slip phenomenon.The utility model is proposed simultaneously improves the measure of stick-slip.
In summary, up to the present, the thimble assembly of foregoing problems can effectively also be solved without a kind of.
Utility model content
Therefore, a purpose of the present utility model is to provide a kind of puncture outfit diaphragm seal, and the diaphragm seal is opened including near-end
Mouth and remote stomidium and the sealed wall that proximal openings are extended to from remote stomidium.The remote stomidium is formed by sealing lip, for accommodating
The apparatus of insertion simultaneously forms sealing.The sealing lip includes central axis and transverse plane substantially vertical with the axis.It is described
Sealed wall has proximal end face and distal face.The diaphragm seal can ensure the 5mm apparatuses for insertion it is reliable sealedly under the premise of, drop
Frictional resistance and improvement stick-slip during low application major diameter apparatus.
As described in background, the parcel region that sealing lip and its close region are formed when inserting major diameter apparatus is to cause to rub
Wipe the larger root of resistance.The frictional resistance is reduced, the radial stress reduced between apparatus and diaphragm seal should be considered,
Reduce the parcel area between apparatus and diaphragm seal, reduce the real contact area of apparatus and diaphragm seal.People in the art
Member it is appreciated that according to Generalized Hu can law and Poisson's ratio theory understand, increase ring girth can reduce hoop strain (should
Power), so as to reduce radial strain (stress).It should be noted that sealing lip can not be reduced by increasing the method for ring girth
Strain (stress), this reduces sealing reliability when causing to apply 5mm apparatuses.And because sealing lip close region is big in application
Stress high concentration during diameter apparatus, therefore should quickly increase the ring girth of sealing lip close region；For sealing
Region outside lip close region, because strain (stress) is smaller, it may not be necessary to using the measure of increase ring girth.In addition,
The axial extensional rigidity of sealing lip close region should also be increased while increase ring girth to improve sealing lip close region
Stick-slip.
In one side of the present utility model, a kind of diaphragm seal of puncture outfit for Minimally Invasive Surgery, the diaphragm seal bag
Include proximal openings and remote stomidium and the sealed wall of proximal openings is extended to from remote stomidium, the sealed wall has proximal end face and remote
End face.The remote stomidium is formed by sealing lip, and for accommodating the apparatus of insertion and forming hermetic seal, the sealing lip includes center
Axis and transverse plane substantially vertical with the axis.The sealed wall includes flange, main body turret wall and multiple reinforcements.Institute
Stating main body turret wall includes the first turret wall extended from sealing lip to flange and the second sealing extended from flange to sealing lip
Wall；First sealed wall and transverse plane formation first angle, and the second turret wall and transverse plane formation second angle, described first jiao
Degree is less than second angle and less than 90 degree.The reinforcement extended laterally outward since sealing lip and simultaneously with described first time
Turn wall and the second turret wall is intersecting, and the width of muscle gradually increases.
In other side of the present utility model, a kind of improved diaphragm seal, the diaphragm seal includes proximal openings and remote
Stomidium and the sealed wall that proximal openings are extended to from remote stomidium, the sealed wall have proximal end face and distal face.The distal end
Hole is formed by sealing lip, for accommodating the apparatus of insertion and forming hermetic seal.The sealing lip comprising central axis and substantially with
The vertical transverse plane of the axis.The sealed wall includes flange, main body turret wall and multiple inverted grooves.The main body revolution
Wall includes the first turret wall extended from sealing lip to flange and the second sealed wall extended from flange to sealing lip；Described first
Sealed wall and transverse plane formation first angle, and second turret wall and transverse plane formation second angle, the first angle
Less than second angle and less than 90 degree.From the distal face of the main body turret wall, proximally face is recessed and described the inverted groove
The opening of inverted groove towards distal face, and proximally the profile of inverted groove described in the visual angle in face show as it is grand on proximally face
The muscle risen.Each described inverted groove includes two side walls, and the side wall is the transverse direction since sealing lip that both sides are limited
The face domain that stretch out and width gradually increases.The cross sectional shape of the inverted groove is V-type.The diaphragm seal is also included
The outside floating part with least one transverse fold of the proximal openings is extended to from the flange.
In a kind of optional embodiment, pressed from both sides between the both sides of the inverted groove side wall of sealing lip close region
The geometrical relationship at angle meets following formula：
And α+θ≤90 °；
Wherein：
The angle of θ=between two sides of sealing lip close region formation inverted groove side wall
The bus of the main body turret wall of α=sealing lip close region and the angle (guide angle) of transverse plane
Arctan=arctan functions
Cos=cosine functions
π=pi
R=radiuses
RiThe maximum radius for the operating theater instruments that=design passes through diaphragm seal
R0The radius of=sealing lip
The number of P=inverted grooves.
In another aspect of the present utility model, the diaphragm seal includes proximal openings and remote stomidium and extended by remote stomidium
To the sealed wall of proximal openings, the sealed wall has proximal end face and distal face.The remote stomidium is formed by sealing lip, for holding
Receive insertion apparatus and form sealing, the sealing lip include central axis and transverse plane substantially vertical with the axis.Institute
State sealed wall and include flange and the first turret wall extended from sealing lip to flange and extend from flange to sealing lip second
Sealed wall；First sealed wall and transverse plane formation first angle, and second jiao of second turret wall and transverse plane formation
Degree, the first angle is less than second angle and less than 90 degree.First turret wall has multiple folds, and the fold is from close
Envelope lip starts circumscribed and extend laterally outward with sealing lip.
In another aspect of the present utility model, the diaphragm seal includes proximal openings and remote stomidium and extended by remote stomidium
To the sealed wall of proximal openings, the sealed wall has proximal end face and distal face.The remote stomidium is formed by sealing lip, for holding
Receive insertion apparatus and form sealing, the sealing lip include central axis and transverse plane substantially vertical with the axis.Institute
State sealed wall and include flange and the first turret wall extended from sealing lip to flange and extend from flange to sealing lip second
Sealed wall；First sealed wall and transverse plane formation first angle, and second jiao of second turret wall and transverse plane formation
Degree, the first angle is less than second angle and less than 90 degree.First turret wall has multiple folds, and the fold is from close
Envelope lip starts circumscribed and extend laterally outward with sealing lip.The sealed wall also includes multiple inverted grooves, described reversely recessed
Groove proximally face depression and is open towards distal face from the distal face of sealed wall, the inverted groove since sealing lip laterally to
Flange is extended to outside, each inverted groove includes two side walls.In sealing lip close region, the side wall is that both sides are limited
The face domain that gradually increases of extended laterally outward since sealing lip and width.
Another purpose of the present utility model is to provide a kind of puncture outfit seal assembly.The seal assembly includes lower fixation
Ring, diaphragm seal, protection device, upper retainer ring, upper shell and upper lid composition.The diaphragm seal and protection device are sandwiched in lower fixation
Between ring, the protection device is used to protect the diaphragm seal to damage from the sharp edge of insertion instrument.The diaphragm seal is also wrapped
Include the outside floating part for including at least one transverse fold that proximal openings are extended to from the flange.The diaphragm seal it is near
End is sandwiched between upper shell and upper lid, and the outside floating part of the diaphragm seal make it that the diaphragm seal and protection device can be
Upper shell and upper cap-shaped into gas-tight silo in transverse shifting.
When refer to the attached drawing and detailed description, of the present utility model above-mentioned or other purposes, feature and advantage will become
Obtain clearer.
Brief description of the drawings
In order to more fully understand essence of the present utility model, it is described in detail below in conjunction with accompanying drawing, wherein：
Simulation deformation pattern when Fig. 1 is the thimble assembly insertion 5mm apparatuses of prior art；
Fig. 2 is the detail drawing of the diaphragm seal 730 of prior art；
Simulation deformation pattern when Fig. 3 is the thimble assembly insertion 12.8mm apparatuses of prior art；
Simulation deformation pattern when Fig. 4 is the thimble assembly extraction 12.8mm apparatuses of prior art；
Fig. 5 is the three-dimensional local sectional view of the utility model thimble assembly；
Fig. 6 is the exploded view of the sealing membrane modules in Fig. 5 described sleeve pipe components；
Fig. 7 is the partial sectional perspective view of sealing membrane modules shown in Fig. 6；
Fig. 8 is that diaphragm seal shown in Fig. 6 omits diaphragm seal stereogram after near-end and floating part；
Fig. 9 is the reversed isometric view of diaphragm seal shown in Fig. 8；
Figure 10 is the 10-10 sectional views of diaphragm seal shown in Fig. 8；
Figure 11 is the 11-11 sectional views of diaphragm seal shown in Fig. 8；
Figure 12 is the diaphragm seal stereogram of embodiment two of the present utility model；
Figure 13 is the 13-13 partial sectional views of diaphragm seal shown in Figure 12；
Figure 14 is the 14-14 sectional views of diaphragm seal shown in Figure 12；
Figure 15 is the opposite direction three-dimensional cutaway view of diaphragm seal shown in Figure 12；
Figure 16-17 is the figure after the cutting separation of diaphragm seal ring shown in Figure 15；
Simulation deformation pattern when Figure 18 is the insertion 12.8mm apparatuses of diaphragm seal shown in Figure 12；
Figure 19 is that the figure after inserted 12.8mm apparatuses is concealed in Figure 18；
Figure 20 is the diaphragm seal stereogram of embodiment three of the present utility model；
Figure 21 is the 21-21 sectional views of diaphragm seal shown in Figure 20；
Figure 22 is the 22-22 sectional views of diaphragm seal shown in Figure 20；
Figure 23 is the diaphragm seal stereogram of example IV of the present utility model；
Figure 24 is the 24-24 sectional views of diaphragm seal shown in Figure 23；
Figure 25 is the 25-25 sectional views of diaphragm seal shown in Figure 24；
Figure 26 is the 26-26 sectional views of diaphragm seal shown in Figure 24；
Figure 27 is the reversed isometric view of diaphragm seal shown in Figure 24；
In all views, identical label represents equivalent part or part.
Embodiment
Disclosed herein is embodiment of the present utility model, it should be understood, however, that disclosed embodiment is only this reality
With new example, the utility model can be realized by different modes.Therefore, this disclosure be not to be construed for
Restricted, but only as the basis of claim, and it is how new using this practicality as teaching those skilled in the art
The basis of type.
Fig. 5 depicts the overall structure of puncture outfit.A kind of typical puncture outfit includes the (not shown) of puncture needle 10 and sleeve pipe group
Part 20.Thimble assembly 20 has open near-end 192 and open distal end 31.In a kind of typical application, puncture needle 10 runs through
Thimble assembly 20, then enters body cavity through penetrating whole stomach wall at skin openings together.Once into body cavity, the quilt of puncture needle 10
Take and leave the passage that thimble assembly 20 passes in and out body cavity as apparatus away.The near-end 192 is in the patient distal end
31 in patient's body.A kind of preferred thimble assembly 20, can be divided into the first seal assembly 100 and the second seal assembly
200.The neck 39 of the component 100 and the snap fit 112 of the component 200 coordinate fastening.The snap fit 112 and neck 39
Cooperation singlehanded can quickly be split.The convenient tissue or foreign matter taken out in patient's body when this is mainly for operation.The component
Fast lock between 100 and component 200 is connected with a variety of implementations.In addition to the structure that the present embodiment is shown, screw thread can be also used
Connection, rotary buckle or other quick locking structures.Selectable, the component 100 and component 200 can be designed to can not be quick
The structure of fractionation.
Fig. 5 depicts the composition and assembly relation of the first seal assembly 100.Lower house 30 includes an elongated tubular 32, and this is thin
Long tube limits the sleeve pipe 33 through distal end 31 and is connected with shell 34.The lower house 30 has the inwall of support Duckbill seal
36 and the air valve mounting hole 37 with inwall UNICOM.Valve element 82 is arranged in valve body 80 and is installed along with the mounting hole 37.
The flange 56 of Duckbill seal 50 is sandwiched between the inwall 36 and lower cover 60.Fixation between the lower cover 60 and lower house 30
Mode has a variety of, can be glued using interference fit, ultrasonic bonding, the mode such as buckle fixation.Lower cover 60 described in the present embodiment
4 mounting posts 68 and 4 mounting holes 38 of the lower house 30 be interference fitted, this interference fit is in Duckbill seal 50
Compressive state.Described sleeve pipe 32, inwall 36, Duckbill seal 50, valve body 80 and valve element 82 have collectively constituted first chamber.This implementation
In example, the Duckbill seal 50 is single seam, but it is also possible to uses other kinds of closure valve, including tongue type valve, stitches duckbill valve more.
When external device runs through the Duckbill seal 50, its duckbilled 53 can be opened, but it is generally not provided relative to the apparatus
Be fully sealed.When the apparatus is removed, the duckbilled 53 is closed automatically, so as to prevent fluid in first chamber to body
Outward leakage.
Fig. 5 depicts the composition and assembly relation of the second seal assembly 200.Sealing membrane modules 180 are clipped in lid 110 and upper
Between housing 190.The near-end 132 of the sealing membrane modules 180 is fixed on the inner ring 116 and the upper casing of the upper lid 110
Between the inner ring 196 of body 190.Fixed form between the upper shell 190 and upper lid 110 has a variety of, can use interference fit,
Ultra-sonic welded, is glued, the mode such as buckle fixation.The shell 191 for the upper shell 190 that the present embodiment displaying connected mode is
Fixed between the shell 111 of the upper lid 110 by ultrasonic bonding.This fixation causes the sealing membrane modules 180
Near-end 132 is in compressive state.The centre bore 113 of the upper lid 110, inner ring 116 and sealing membrane modules 180 together constitute
Two chambers.
Fig. 6-7 depicts the composition and assembly relation of sealing membrane modules 180.The sealing membrane modules 180 include lower fixation
Ring 120, diaphragm seal 130, protection device 160 and upper retainer ring 170.The diaphragm seal 130 and protection device 160 are sandwiched in lower solid
Determine between ring 120 and upper retainer ring 170.And the pillar 121 of the lower retainer ring 120 and miscellaneous part in the component 180
Upper corresponding hole alignment.The pillar 121 and the hole 171 of upper retainer ring 170 are interference fitted, so that whole sealing membrane modules
180 are in compressive state.The protection device 160 includes the screening glass 163 of 4 order overlap joints, for protecting the diaphragm seal
130 central seal body, protects it from perforation or tear that the sharp edge of the operating theater instruments of insertion is caused.
The diaphragm seal 130 includes proximal openings 132, distal bore 133 and the sealed wall proximally extended from distal end,
The sealed wall has proximal end face and distal face.The remote stomidium 133 is formed by sealing lip 134, the apparatus for accommodating insertion
And form hermetic seal.The sealing lip 134 can be non-circular, and sealing lip 134 described in this example is approximate annular.
As described in practical Novel back scape, sealing lip girth should the short enough and sturdy sealing reliability to ensure when applying 5mm apparatuses.This
Sealing lip 134 is circle in example, defines its radius for Rlip, then sealing lip girth be approximately equal to 2*Rlip* π (π=
3.14159), 11.8~13.8mm of usual sealing lip Zhou Changwei.The section of the sealing lip is circle, and its radius is usually
0.35~0.5mm.
The diaphragm seal 130 also includes flange 136；The one end of sealed wall 135 connects sealing lip 134 and other end flange connector
136；One end flange connector 136 of floating part 137 and the other end connect the near-end 132.The flange 136, which is used to install, to be protected
Device 160.The floating part 137 includes one or more radial directions (transverse direction) fold, so that whole sealing membrane modules 180
It can be floated in the component 200.
The component 180 can be by much having the material of different qualities to be made.For example diaphragm seal 130 uses silica gel, different
The elastic materials such as penta rubber；Protection device 160 uses semirigid thermoplastic elastomer (TPE)；And lower retainer ring 120 and upper fixation
Ring 170 is made of relatively hard plastic materials such as makrolon.
Fig. 8-10 is finer to depict one embodiment diaphragm seal 130 of the present utility model.To reduce production cost,
Diaphragm seal 130 is preferably devised to an entirety, but it is also possible to be designed to that seal body interior separated at flange 136 and outside are floating
The dynamic part of part two.Embodiment one is improved mainly for the seal body interior.To simplify statement, subsequent descriptions sealing
Outside floating part and near-end are not shown during film.
The axis for defining the sealing lip 134 is 158.Define the transverse plane 159 perpendicular to axis 158.The sealed wall
135 include the first main body turret wall 138, the second main body turret wall 139 and multiple muscle 140.The first main body turret wall 138
Extend from sealing lip 134 initially towards the flange 136；The second main body turret wall 139 is since flange 136 to sealing lip
134 extensions；The first main body turret wall 138 and the second main body turret wall 139 are crossed to form longitudinally cutting face for approximate L shape
Seal.It is α that the bus of the first main body turret wall 138, which is defined, with the angle of transverse plane 159；Define the second main body turret wall
139 bus and the angle of transverse plane 159 are β, and 90 ° of α ＜ β ＜.Those skilled in the art are necessarily appreciated that, although this reality
The first main body turret wall and the second main body turret wall are employed in example, can be used not departing from the utility model scope
More wall parts, same is not departing from the range of the utility model, the first main body turret wall and the revolution of the second main body
Wall can be configured to have unlimited guide angle, the i.e. turret wall with continuous bend.
The muscle 140 is extended laterally outward since the sealing lip and width gradually increases, the muscle 140 and described the
One main body turret wall 138 is crossed to form intersection 145；The main body turret wall 139 of muscle 140 and second is crossed to form intersection 146.
Shown by theory analysis and correlative study, reduce the value of the guide angle α, be conducive to reducing the parcel region
Area.In this example, the guide angle α of the first main body turret wall 138 can reduce apparatus with sealing intermembranous parcel close to zero
Region；If remove muscle 140, then the L shape sealed wall being made up of the first main body turret wall 138 and the second main body turret wall 139
135 can not play a part of reducing parcel region, because insertion instrument necessarily causes the sealed wall 135 is overall axially to draw
Stretch, region increase is not only wrapped up, while the stick-slip will be apparent from.The muscle 140 has the axial extensional rigidity of enhancing sealing lip
Effect, the muscle 140 pulls sealing lip 134 and its close region so that during insertion maximum gauge apparatus, sealing lip 134
Axial displacement is not produced or axial displacement is smaller；The muscle 140 causes the first main body turret wall 138 containing smaller guide angle α
With the function of reducing parcel region and reduction stick-slip.
Under normal circumstances, the guide angle for reducing the diaphragm seal necessarily sacrifices the steering capability of diaphragm seal.But this implementation
The diaphragm seal 130 of example does not sacrifice guidance quality while parcel area is reduced.With reference to Fig. 5-7, the protection device 160
In the screening glass 163 that mutually overlaps be close to the muscle 140, when inserting 5mm apparatuses or major diameter apparatus, apparatus contacts guarantor first
Bluff piece 163, and described 163 and then extruding muscle 140, force the spread apart of sealed wall 135.The guidance quality of whole sealing membrane modules is still
It is so good.
Figure 12-15 depicts second preferred embodiment diaphragm seal 230 of the utility model.Figure 12-15 geometries
Number designation number designation corresponding with Fig. 8-11 is identical, and the expression structure of same numbers label is substantially equivalent.It is described close
Sealer 230 includes proximal openings 132, distal bore 133 and the sealed wall proximally extended from distal end, and the sealed wall has
Proximal end face and distal face.The remote stomidium 133 is formed by sealing lip 134.The diaphragm seal 130 also includes flange 136；Sealed wall
235 one end connect sealing lip 134 and other end flange connector 136.The axis for defining the sealing lip 134 is 158.Definition is vertical
In the transverse plane 159 of axis 158.
The sealed wall 235 includes the first main body turret wall 138, the second main body turret wall 139, multiple inverted grooves 240
(or hollow muscle 240).The first main body turret wall 138 extends from sealing lip 134 initially towards the flange 136；It is described
Second main body turret wall 139 extends since flange 136 to sealing lip 134；The first main body turret wall 138 and the second main body
Turret wall 139 is crossed to form the seal that longitudinally cutting face is approximate L shape.Define the bus of the first main body turret wall 138 with
The angle of transverse plane 159 is α；The angle of the bus and transverse plane 159 that define the second main body turret wall 139 is β, and α ＜ β ＜
90°.Those skilled in the art are necessarily appreciated that, although the first main body turret wall and the revolution of the second main body are employed in this example
Wall, more wall parts can be used not departing from the utility model scope, same is not departing from the utility model
In the range of, the first main body turret wall and the second main body turret wall can be configured to have unlimited guide angle, i.e., with even
The turret wall of continuous bending.
The inverted groove 240 is from the first main body turret wall and the second main body turret wall by distal face proximally face
The opening of depression and the inverted groove is towards distal face；And proximally the visual angle in face is seen, the inverted groove 240 is from the master
The muscle swelled on body turret wall.The inverted groove 240 is extended laterally outward since sealing lip 134, and facing in sealing lip
The depth of inverted groove 240 gradually increases along sealing lip axis direction described near field.The measuring method of the depth of groove
For：The beeline that the groove concave bottom point arrives main body turret wall is measured along axis direction.It is the multiple reversely recessed
The main body turret wall is approximately divided into some by groove 240.I.e. described sealed wall 235 is by main body turret wall and multiple anti-
The seamless seal of the formation of sealing lip 134 is surrounded to groove.The sealed wall 235 of this example is linear anti-comprising 6
To groove 240, but greater number or fewer number of or nonlinear inverted groove can also be used.
The inverted groove 240 includes madial wall 241 and side wall 242.The madial wall 241 and side wall 242 are crossed to form
Intersection 245a, 245b；The main body turret wall 138 of side wall 242 and first is crossed to form intersection 246a, 246b.The side wall 242
Intersection 247a, 247b are crossed to form with the second main body turret wall 139.Define the intersection 245b and intersection 246b (or intersection
245a and intersection 246a) angle be θ.
It is rotary shaft with axis 158, it is R to make a radius1The face of cylinder intersect with the first main body turret wall, after
Its intersection makees the section M of the revolution bus perpendicular to the first main body turret wall 1381(being rotary shaft with axis 158).Institute
State section M1The diaphragm seal 230 is divided into inboard portion 256 (such as Figure 16) and Outboard Sections 257 (Figure 17).It is described to cut
Face M1Multistage intersection 251a and 251b are crossed to form with the first main body turret wall 138.The cut surface M1With the phase of madial wall 241
Friendship forms multistage intersection 252a and 252b.The cut surface M1Multistage intersection 253a and 253b are crossed to form with side wall 242.Institute
State multi-section-line 251a, 252a, 253a and form annular intersection 255a；The multi-section-line 251b, 252b, 253b form annular intersection
255b.The annular intersection 255a and 255b defines section 255.
Such as Figure 16-17, it is clear that the perimeter L of the intersection 255a (255b)1Much larger than 2* π * R1, i.e. inverted groove 240
The effect of increase ring girth is arrived.And L1With 2* π * R1Difference, be approximately equal to intersection 253a (253b) length L22*P
Again (P is the number of inverted groove).It can be seen that, really play the girth effect of increase ring is side wall 242.
It will be understood by those skilled in the art that certainly existing some R1Value, makes section M1The Outboard Sections 257 of segmentation from
The section 255 starts, and the change of its shape is mainly shown as diaphragm seal partial loop variation and macroscopical displacement, and non-general
Micro molecule chain lengthening and integrally stretching deformation.And the inboard portion 256, from sealing lip 134 to the section 255, its shape
The partial loop variation of the change performance diaphragm seal of shape and the comprehensive function of integrally stretching deformation.It can be seen that, the inverted groove increases
Big ring girth, is reduced using the hoop strain (stress) during major diameter apparatus, so as to reduce hoop clamp force and described
Frictional resistance.
In a kind of optional scheme, the madial wall 241, the main body turret wall 138 of side wall 242 and first has substantially uniform
Wall thickness, the wall thickness of this approaches uniformity can cause strain (stress) approaches uniformity of sealed wall 235.But described is substantially equal
Even wall thickness is not restricted to the absolute equal of numerical value.When inverted groove number is more, manufacture is (such as in order to increase for convenience
Mould strength at strong inverted groove), or consider error component, the thickness of the side wall 242 is returned than first main body
Turn 0.05~0.25mm of thickness of thin of wall 138.And the wall thickness numerical value of the main body turret wall 138 of side wall 242 and first is smaller, it is
Convenient to quantify, the wall-thickness ratio of definition the first main body turret wall 138 and the side wall 242 is between 1~1.5, still closely
The wall thickness for seemingly thinking sealed wall 235 is substantially homogeneous, still without departing from scope of the present utility model.
The side wall 242 of the present embodiment is substantially parallel with the direction of axis 158, i.e., the section of described inverted groove 240 is
It is approximate U-shaped.Make in sealing lip close region arbitrarily parallel to axis 158 and while vertical any one of side wall 242
Section, the section is approximate U-shaped (section of other grooves with section that the inverted groove 240 being cut is crossed to form
Face is also according to said method defined).But for convenience of manufacturing, such as conveniently stripped, the side wall 242 can be with the axis 158 not
It is parallel.The section of i.e. described inverted groove 240 is trapezoidal or triangle or the polygon being arbitrarily open.As long as this inverted groove rises
The ring girth of increase sealing lip close region and the function of the axial extensional rigidity of increase are arrived, all without departing from the utility model
Scope.
Figure 18-19 describes the simulation deformation pattern of diaphragm seal 230 when knowing clearly insertion major diameter apparatus.Insert major diameter apparatus
When, the main body turret wall 138 is divided into main body turret wall 138c and cylindrical wall 138d two parts；And the quilt of madial wall 241
It is divided into madial wall 241c and cylindrical wall 241d two parts；The side wall 242 is divided into side wall 242c and cylindrical wall 242d two parts.
Wherein described cylindrical wall 138d, cylindrical wall 241d, cylindrical wall 242d, which have been collectively constituted, is wrapped in the insertion instrument outer surface
Wrap up region.Research shows, relative to the design of un-grooved, and its parcel region of the seal containing inverted groove is smaller.And institute
State inverted groove and reduce real contact area between diaphragm seal and apparatus, the frictional resistance can be reduced.
Shown by theory analysis and correlative study, reduce the value of the guide angle α, be conducive to reducing the parcel region
Length, but too small guide angle α will sacrifice the steering capability of diaphragm seal, it is thus determined that should meet guidance quality during α values
Under the premise of as far as possible take less value.Sealed wall 235 in this example includes the first main body turret wall and the second main body turret wall；The
The guide angle α of one main body turret wall is much smaller than the guide angle β of the second main body turret wall.It is selectable, make 0 °≤α≤30 °, can
The larger reduction parcel region.As it was noted above, simple by the first main body turret wall 138 and the second main body turret wall
The L shape sealed walls 135 of 139 compositions can not play a part of reducing parcel region because insertion instrument necessarily cause it is described
The overall axial tension of sealed wall 135, not only wraps up region increase, while the stick-slip will be apparent from.And 6 are included in this example
Inverted groove 240, totally 6 madial walls 141 and 12 side walls 142 pull sealing lip 134 and its close region jointly.This drawing
Effect enhances the axial extensional rigidity of whole sealed wall 235, and when making to apply maximum gauge apparatus, the sealing lip 134 is produced
Axial displacement very little.The inverted groove 240 and the first main body turret wall 138 with smaller guide angle α are played jointly to be subtracted
The effect in the small parcel region.
Equally, the diaphragm seal 230 of the present embodiment does not sacrifice guidance quality while parcel area is reduced.With reference to figure
Sealing membrane modules 180 described in 2-4, diaphragm seal 130 is replaced with diaphragm seal 230.The screening glass 163 of the protection device 160 is close to
The madial wall 241 of the inverted groove 240.When inserting 5mm apparatuses or major diameter apparatus, apparatus contact protection piece 163 first,
Screening glass 163 and then extruding madial wall 241, force inverted groove 240 and the spread apart of sealed wall 235, therefore whole diaphragm seal group
The guidance quality of part is still good.
The inverted groove structure, which has, to be included increasing ring girth, is reduced cylinder parcel area, is reduced apparatus and sealing
Real contact area between film, increases the functions such as axial extensional rigidity；So as to the larger reduction frictional resistance and subtract
Small stick-slip, comfortableness is applied while also reducing the probability for occurring varus and improving.
During using major diameter apparatus, sealing lip close region, particularly described parcel regional stress high concentration.This area
Technical staff be readily appreciated that, nearer it is to its hoop strain (stress) of the region of sealing lip bigger.Having illustrated above can not
The hoop strain (stress) of sealing lip is reduced using the method for increase ring girth, but area can be closed on by increasing sealing lip
The mode of the ring girth in domain reduces the hoop strain (stress) of sealing lip close region；And be necessary quickly to increase close
Seal the ring girth of lip close region the hoop strain (stress) of sealing lip close region is quickly decreased to close to zero.
Illustrate that the side wall 242 plays a part of increasing ring girth above, the side wall 242 is extended laterally outward from sealing lip
When the increased speed of its width it is more fast, the ring girth of sealing lip close region is advanced the speed faster, i.e., foregoing angle theta value
Bigger, then the ring girth of sealing lip close region is advanced the speed faster.In another alternative, the inverted groove
240 geometry is designed to comply with following formula：
And α+θ≤90 °
Wherein：
The angle of θ=between two sides of the side wall of the inverted groove of sealing lip close region；
The bus of the main body turret wall of α=sealing lip close region and the angle (guide angle) of transverse plane；
Arctan=arctan functions；
Cos=cosine functions；
π=pi；
R=radiuses；
RiThe maximum radius for the operating theater instruments that=design passes through diaphragm seal；
R0The radius of=sealing lip；
The number of P=inverted grooves.
Rational θ values cause the ring girth of sealing lip close region quickly to increase.And it can be seen from above-mentioned formula, generally
RiAnd R0It is definite value；And variable α, the increased speed of P and R joint effect ring girths.Pass through theory analysis and correlative study table
It is bright, reduce the value of the guide angle α, be conducive to reducing the length in the parcel region.Research shows parcel during 30 ° of α ＞
Region is larger, generally chooses 0 °≤α≤30 °.Usual 2.5mm≤R≤(Ri+R0)/2.R values, which are less than 2.5mm, then causes sealing
Transitional region at lip is too big；R values are more than (Ri+R0)/2 item cause increase sealing lip close region ring girth reduction hoop
The DeGrain of clamp force.α, P and R reasonable value both can guarantee that good guidance, when can make to apply maximum gauge apparatus again
The parcel region minimize, then the hoop clamp force of the sealing lip close region is reduced rapidly to very little or not deposited
.It has been investigated that, R=3.5, P=8 can effectively reduce the parcel region and hoop clamp force during α=0 °.Approximate effect
Or may more effectively parameter combination can pass through theoretical calculation and simple experiment checking obtain.
The design of the inverted groove, as long as meeting the essence of above-mentioned formula, so that it may be considered to substantially conform to above-mentioned formula
's.For example, those skilled in the art are readily apparent that, by the first main body turret wall 138, madial wall 241 or side wall 242 are designed
Into Nonlinear Curved；Or deliberately by the first main body turret wall 138, madial wall 241 or side wall 242 are designed to complicated multiaspect
Blending surfaces；The intersection formed can not be straight line, but as long as two intersection is from entirety, it closes in sealing lip
The angle in region substantially conforms to above-mentioned formula, then it is assumed that without departing from scope of the present utility model.Elaborate above close
The strain (stress) that envelope lip close region belongs to outside the region of stress high concentration, the sealing lip close region is relatively
It is small.As long as the inverted groove of the sealing lip close region substantially conforms to above-mentioned formula.Outside sealing lip close region
Inverted groove may not necessarily meet above-mentioned formula.Inverted groove 240 described in this example away from sealing lip 134 region, its
Depth of the groove along sealing lip axis direction is to reduce, and the inverted groove outside sealing lip close region does not meet above-mentioned public affairs
Formula.
As Figure 20-22 illustrates the 3rd embodiment diaphragm seal 330 of the present utility model.The diaphragm seal 330 includes remote
Stomidium 333, sealing lip 334, sealed wall 335 and flange 336.The remote stomidium 333 is formed by sealing lip 334.The sealed wall
335 one end connect sealing lip 334 and other end flange connector 336.The flange 336 is used for protection device for installing.The sealing
Film 330 has proximal end face and distal face.The axis for defining the sealing lip 334 is 358.Define perpendicular to the horizontal flat of axis 358
Face 359.
Sealed wall 335 surrounds the arrangement form of sealing lip 334 in the way of approximate circular cone in this example.The sealed wall 335
Include the first main body turret wall 338, the second main body turret wall 339.The first main body turret wall 338 is since sealing lip 334
Extend to flange；The second main body turret wall 339 extends since flange 336 to sealing lip；The first main body turret wall
338 and second main body turret wall 339 be crossed to form longitudinally cutting face be approximate L shape seal.The first main body revolution
Wall 338 includes multiple folds 350.Multiple folds 350 and sealing lip 334 are circumscribed and extend laterally outward.The fold 350 includes
Fold peak 352a, 352b；Corrugation valleys 353a, 353b；And corrugated wall 351.Define fold peak 352a (352b) and transverse plane
359 angle is κ, and the angle for defining corrugation valleys 352a (353b) and transverse plane 359 is λ.Define the second main body turret wall 339
The angle of bus and transverse plane 359 is ν.And κ ＜ ν≤90 °, λ ＜ ν≤90 °.
As it was noted above, reducing the guide angle of the turret wall of sealing lip close region, help to reduce the parcel region,
But the guidance quality of diaphragm seal can be sacrificed.Sealed wall 335 in this example is by the first main body turret wall and the second main body turret wall group
Into；The guide angle κ, λ of the fold of first main body turret wall are much smaller than the guide angle ν of the second main body turret wall.It is selectable, make
0 °≤κ≤30 °, 0 °≤λ≤30 °, the reduction cylinder that can be larger wraps up region.In addition, the pleat of sealing lip close region
Wrinkle 350, increases the girth of sealing lip close region, helps to reduce hoop clamp force.But there is a defect in this example, actual
In, the L shape rotary body being only made up of the first main body turret wall 338 and the second main body turret wall 339 can not be played and subtracted
The effect in small packet region.Because the L shape can be straightened during insertion maximum gauge apparatus, this can increase cylindrical bag on the contrary
Wrap up in region.Therefore certain structure, which must be increased, pulls sealing lip 334 and its close region so that during insertion maximum gauge apparatus
Sealing lip 334 does not produce axial displacement or axial displacement is smaller.
Figure 23-27 illustrates the 4th improved example diaphragm seal 430 of the present utility model.Geometry in Figure 23-27
Number designation number designation corresponding with Figure 20-22 it is identical, the expression structure of same numbers label is substantially equivalent.Institute
Stating diaphragm seal 430 includes remote stomidium 333, sealing lip 334, sealed wall 435 and flange 336.The remote stomidium 333 is by sealing lip
334 form.Described one end of sealed wall 335 connection sealing lip 334 and other end flange connector 336.The flange 336 is used to install
Protection device.The diaphragm seal 330 has proximal end face and distal face.The axis for defining the sealing lip 334 is 358.Definition is hung down
Directly in the transverse plane 359 of axis 358.
The diaphragm seal 430 adds inverted groove 440 on the basis of diaphragm seal 330.I.e. described seal 435 is included
First main body turret wall 338 and the second main body turret wall 339 and multiple inverted grooves 440.The inverted groove 440 is from sealing lip
334 directions for starting to support or oppose off-axis line 358 extend laterally to flange 336.The opening of the inverted groove 440 is towards distal face；From
The visual angle of proximal end face sees that the inverted groove 440 is the muscle swelled from sealed wall.The inverted groove 440 includes madial wall
441 and side wall 442.The madial wall 441 and side wall 442 are crossed to form intersection 445a, 445b；The side wall 442 and corrugated wall
451 are crossed to form intersection 446a, 446b；The main body turret wall 339 of side wall 442 and second is crossed to form intersection 447a, 447b.
This example includes four inverted grooves 440, and totally 4 madial walls 441 and 8 side walls 442 pull sealing lip jointly
334 and its close region.This traction action enhances the axial extensional rigidity of whole seal 435, makes to apply maximum gauge
During apparatus, the axial displacement very little that the sealing lip 334 is produced, so that including the inverted groove 440 and smaller guiding
The first main body turret wall 338 at angle has the effect for reducing parcel region.Those skilled in the art is necessarily appreciated that more
Or less inverted groove, it may also function as approximate effect.Equally, the diaphragm seal 430 of the present embodiment is reducing parcel area
Meanwhile, do not sacrifice guidance quality.
Those skilled in the art is readily apparent that the inverted groove is a relative concept.For example it is with diaphragm seal 230
Example, the madial wall 241 with the inverted groove 240 is reference, then described two adjacent walls 242 and the first main body between it
Turret wall 138, the second main body turret wall 139 constitutes the groove (be referred to as positive groove) recessed relative to madial wall 241.Institute
The area and the first main body turret wall 138 of madial wall 241 are stated, the second main body turret wall 139 is compared, and its accounting is different then described
The morphological differences of groove is very big, and the groove of different shape truly connects for the parcel region for apparatus is intermembranous with sealing
The influence of contacting surface product is also different.By taking diaphragm seal 230 as an example, the first main body turret wall 138 and the second main body turret wall are defined
139 projected area on the transverse plane 159 is A1；Define projection of all inverted grooves 240 on the transverse plane 159
Area is A2.For the apparent scope of the present utility model that defines, define as A2 ＜ A1, the groove 240 is this reality
With " reverse " groove of new restriction；As A2 >=A1, the groove 240 is not that the utility model limits " reverse " groove.
Those skilled in the art are readily apparent that rational round-corner transition can avoid stress concentration or some regions are become
Shape is easier.Because the size of diaphragm seal is smaller, especially sealing lip near zone is smaller.Such small size,
Chamfering is different, then the profile of diaphragm seal seems to differ greatly.In order to clearly show the geometrical relationship between an element, this reality
With the embodiment of new description, usually remove the figure after fillet.
Many different embodiments of the present utility model and example are had shown and described.One of this area is common
Technical staff, on the premise of the utility model scope is not departed from, can make suitable by suitably modified to methods described and apparatus
Answering property is improved.Used in such as example in the utility model the protection chip architecture that is disclosed in United States Patent (USP) US7789861 and
Its fixed form, but the protection chip architecture and its fixed form that can also be disclosed using United States Patent (USP) US7988671, Mou Xieying
Chip architecture is protected with that can also not include under situation.Such as approximate U-type groove and approximate V-groove described in this example, it is impossible to quilt
It is limited to its shape and is necessary for U-shaped or V-type.The inverted groove is for example repeatedly mentioned in the utility model since at sealing lip
Extend laterally outward, it is straight line that so-called " extending laterally outward ", which is not restricted to it to extend track, described to extend laterally outward
When track can also be helix, broken line, the curve such as multi-section circular arc line.For example in example of the present utility model it is described in detail
The position relationship and its intersection of each intersection of the composition inverted groove, it would however also be possible to employ increase curved surface formation multiaspect splicing
Or its intersection and groove topography is seemed there is larger difference with example by the way of high-order curved surface, but as long as overall meet
Thought of the present utility model, is still believed that without departing from scope of the present utility model.Several kinds of amendment schemes are referred, right
For those skilled in the art, other amendment schemes are also what is be contemplated that.Therefore scope of the present utility model should be according to
According to accessory claim, while being understood not to the tool of the structure for being shown and being recorded by specification and accompanying drawing, material or behavior
Hold in vivo and limited.
Claims (10)
1. a kind of polygonal puncture outfit diaphragm seal containing groove, the diaphragm seal includes proximal openings and remote stomidium and from distally
Hole extends to the sealed wall of proximal openings, and the sealed wall has proximal end face and distal face；The remote stomidium is formed by sealing lip,
For capacity insert apparatus and form hermetic seal；The sealing lip includes central axis and horizontal stroke substantially vertical with the axis
Plane；It is characterized in that：
A) sealed wall includes flange, main body turret wall and multiple inverted grooves；
B) the main body turret wall includes the first turret wall from sealing lip to flange that extend from and extended from flange to sealing lip
Second sealed wall；First sealed wall and transverse plane formation first angle, and the second turret wall and transverse plane formation second angle, institute
First angle is stated less than second angle and less than 90 degree；
C) opening court of the inverted groove from the distal face of the main body turret wall proximally face depression and the inverted groove
To distal face, and proximally the profile of inverted groove described in the visual angle in face shows as the muscle swelled on proximally face.
2. a kind of polygonal puncture outfit diaphragm seal containing groove as claimed in claim 1, it is characterised in that each is described anti-
Include two side walls to groove, and the side wall be extended laterally outward since sealing lip the and width that limits of both sides gradually
The face domain of increase.
3. a kind of polygonal puncture outfit diaphragm seal containing groove as claimed in claim 2, it is characterised in that the inverted groove
Cross sectional shape be U-shaped or V-type or a portion are U-shaped and another part is V-type.
4. a kind of polygonal puncture outfit diaphragm seal containing groove as claimed in claim 2, it is characterised in that the inverted groove
The geometrical relationship of angle meets following formula between the both sides of side wall：
And α+θ≤90 °；
Wherein：
The angle of θ=between two sides of the side wall of the inverted groove of sealing lip close region
The bus of the main body turret wall of α=sealing lip close region and the angle (guide angle) of transverse plane
Arctan=arctan functions
Cos=cosine functions
π=pi
R=radiuses
RiThe maximum radius for the operating theater instruments that=design passes through diaphragm seal
R0The radius of=sealing lip
The number of P=inverted grooves.
5. a kind of polygonal puncture outfit diaphragm seal containing groove as claimed in claim 4, it is characterised in that the angle α takes
It is worth scope：0°≤α≤30°.
6. a kind of polygonal puncture outfit diaphragm seal containing groove as claimed in claim 4, it is characterised in that the radius R's
Span：2.5mm≤R≤(Ri+R0)/2。
7. a kind of polygonal puncture outfit diaphragm seal containing groove as claimed in claim 2, it is characterised in that wherein described first
Turret wall has multiple folds, and the fold and sealing lip are circumscribed and extend laterally outward.
8. a kind of polygonal puncture outfit diaphragm seal containing groove as claimed in claim 3, it is characterised in that wherein described sealing
Lip is annular or cylinder.
9. a kind of polygonal puncture outfit diaphragm seal containing groove as claimed in claim 4, it is characterised in that also including from described
Flange extends to the outside floating part with multiple transverse folds of proximal openings.
10. a kind of puncture outfit seal assembly, it is characterised in that including the diaphragm seal as any one of claim 1-8, institute
State seal assembly and also include lower retainer ring, upper retainer ring, protection device, upper shell and upper lid；The diaphragm seal is also included from convex
Edge extends to the outside floating part with multiple transverse folds of proximal openings；The diaphragm seal and protection device are sandwiched in
Between retainer ring and lower retainer ring；The proximal openings of the diaphragm seal are sandwiched between upper shell and upper lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620835788.2U CN206453796U (en) | 2016-08-02 | 2016-08-02 | A kind of polygonal puncture outfit diaphragm seal and puncture device assembly containing groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620835788.2U CN206453796U (en) | 2016-08-02 | 2016-08-02 | A kind of polygonal puncture outfit diaphragm seal and puncture device assembly containing groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206453796U true CN206453796U (en) | 2017-09-01 |
Family
ID=59692309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620835788.2U Active CN206453796U (en) | 2016-08-02 | 2016-08-02 | A kind of polygonal puncture outfit diaphragm seal and puncture device assembly containing groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206453796U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510774A (en) * | 2016-08-02 | 2017-03-22 | 成都五义医疗科技有限公司 | A multiangular puncture outfit sealing film with grooves |
| CN108784806A (en) * | 2018-08-21 | 2018-11-13 | 联合微创医疗器械（深圳）有限公司 | A kind of seal assembly and puncture outfit |
| CN109124737A (en) * | 2018-08-17 | 2019-01-04 | 联合微创医疗器械（深圳）有限公司 | A kind of sealing structure and puncture outfit |
-
2016
- 2016-08-02 CN CN201620835788.2U patent/CN206453796U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510774A (en) * | 2016-08-02 | 2017-03-22 | 成都五义医疗科技有限公司 | A multiangular puncture outfit sealing film with grooves |
| WO2018024105A1 (en) * | 2016-08-02 | 2018-02-08 | 成都五义医疗科技有限公司 | Multiangular trocar sealing membrane having recesses |
| CN106510774B (en) * | 2016-08-02 | 2018-06-29 | 成都五义医疗科技有限公司 | A kind of polygonal puncture outfit diaphragm seal containing groove |
| CN109124737A (en) * | 2018-08-17 | 2019-01-04 | 联合微创医疗器械（深圳）有限公司 | A kind of sealing structure and puncture outfit |
| CN109124737B (en) * | 2018-08-17 | 2024-06-04 | 联合微创医疗器械（深圳）有限公司 | Sealing structure and puncture outfit |
| CN108784806A (en) * | 2018-08-21 | 2018-11-13 | 联合微创医疗器械（深圳）有限公司 | A kind of seal assembly and puncture outfit |
| CN108784806B (en) * | 2018-08-21 | 2023-08-11 | 联合微创医疗器械（深圳）有限公司 | Sealing assembly and puncture outfit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105997205B (en) | A kind of puncture outfit diaphragm seal and component comprising positive and negative groove | |
| CN106510774B (en) | A kind of polygonal puncture outfit diaphragm seal containing groove | |
| CN106037898B (en) | It is a kind of can overall varus puncture outfit sealing system | |
| CN105997204B (en) | A kind of puncture outfit diaphragm seal of the fold containing multidimensional | |
| CN106137340B (en) | A kind of puncture outfit diaphragm seal containing groove structure | |
| CN106175846B (en) | A kind of puncture outfit sealing system of fold-type | |
| CN106137341B (en) | A kind of hourglass shape sealing film and component containing groove | |
| US20190142460A1 (en) | Pleated trocar seal membrane | |
| CN206453796U (en) | A kind of polygonal puncture outfit diaphragm seal and puncture device assembly containing groove | |
| CN106108986B (en) | A kind of diaphragm seal and component comprising groove | |
| CN106037899B (en) | A kind of puncture outfit diaphragm seal comprising inverted groove | |
| CN106214229B (en) | A kind of puncture outfit diaphragm seal containing groove | |
| CN206434393U (en) | The puncture outfit diaphragm seal and puncture outfit seal assembly of a kind of fold containing multidimensional | |
| CN206482638U (en) | A kind of hourglass shape diaphragm seal containing groove, sealing membrane modules, instrument seal component and puncture outfit | |
| CN206434390U (en) | A kind of puncture outfit diaphragm seal and puncture outfit seal assembly containing groove | |
| CN206453834U (en) | A kind of puncture outfit diaphragm seal and puncture outfit seal assembly containing groove structure | |
| CN206434392U (en) | A kind of puncture outfit diaphragm seal comprising positive and negative groove, sealing membrane modules, instrument seal component and puncture outfit | |
| CN206453832U (en) | A kind of diaphragm seal comprising groove, sealing membrane modules, improved sealing membrane modules and seal assembly | |
| CN206453833U (en) | It is a kind of can overall varus puncture outfit sealing system diaphragm seal, sealing membrane modules, sealing system and puncture outfit | |
| CN206518583U (en) | A kind of puncture outfit diaphragm seal and puncture outfit seal assembly comprising inverted groove | |
| CN206453795U (en) | The puncture outfit sealing system and puncture outfit of a kind of fold-type | |
| CN206434357U (en) | Improved fold-type puncture outfit diaphragm seal protection device, sealing membrane modules, instrument seal component and puncture outfit | |
| CN206434391U (en) | A kind of puncture outfit integral seal film, split type diaphragm seal, instrument seal component and puncture outfit for Minimally Invasive Surgery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |