CN108784792A - Seal assembly and puncture outfit with it - Google Patents
Seal assembly and puncture outfit with it Download PDFInfo
- Publication number
- CN108784792A CN108784792A CN201710299930.5A CN201710299930A CN108784792A CN 108784792 A CN108784792 A CN 108784792A CN 201710299930 A CN201710299930 A CN 201710299930A CN 108784792 A CN108784792 A CN 108784792A
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- CN
- China
- Prior art keywords
- seal
- aligned
- protective bulkhead
- laminated plate
- seal assembly
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/0034—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3419—Sealing means between cannula and body
Abstract
The invention discloses a kind of seal assemblies for puncture outfit, including diaphragm seal comprising sealing hole, the diaphragm seal are sealed the instrument for being inserted into the sealing hole；Seal protection part, with the neighbouring setting of the diaphragm seal, for protecting the diaphragm seal that the diaphragm seal is avoided to be damaged by the instrument, the seal protection part includes at least one aligned and laminated plate；The aligned and laminated plate includes proximal openings and remote stomidium, and the protective bulkhead of the remote stomidium is extended to from the proximal openings；The protective bulkhead includes at least two slits being laterally extended from the remote stomidium, and the protective bulkhead is allowed to deform upon for the slit so that the distal end bore expansion, consequently facilitating the instrument is passed through from the remote stomidium.The seal assembly of puncture outfit according to the present invention, can diaphragm seal described in effective protection, avoid the diaphragm seal from being scratched or torn by the sharp edge of the instrument, and the protective bulkhead of the seal protection part is simple in structure, and quantity is few, so that assembly is simple.
Description
Technical field
The present invention relates to Minimally Invasive Surgery instrument more particularly to a kind of seal assembly and with its puncture outfit.
Background technology
Puncture outfit is in a kind of Minimally Invasive Surgery (especially hard tube endoscope-assistant surgery), for establishing the artificial channel for entering body cavity
Surgical instrument.Usually it is made of sheath 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 sheath assembly, however penetrates stomach wall through skin opening together and enters body cavity.Once into body
Puncture needle is removed after chamber, leaves the channel that sheath assembly passes in and out body cavity as instrument.
In endoscope surgical procedure, insufflation fluid (such as carbon dioxide or brine) is usually injected into patient's body lumen
In, whereby sufficient operating space is provided for the operation to be carried out.The body cavity of insufflation is generally under certain pressure, can be referred to as
For pneumoperitoneum.In order to maintain pneumoperitoneum to ensure that operation is normally carried out, sheath assembly needs to be equipped with seal assembly, sealing group
Part usually prevents insufflation fluid from leaking when endoscopic instrument is placed in casing.
Seal assembly includes sealing membrane modules, and wherein sealing membrane modules include diaphragm seal and diaphragm seal guard member.Diaphragm seal
Guard member is for protecting diaphragm seal to be damaged by surgical instrument to avoid diaphragm seal comprising aligned and laminated plate.When surgical instrument enters set
When tube assembly, the front end of surgical instrument enters the centre bore of seal assembly and pushes aligned and laminated plate so that expands in the aperture of centre bore
To allow the tubular assembly of surgical instrument to enter, after tubular assembly sleeve pipe component is interior, aligned and laminated plate circumferential direction hoop tubulose
Component, to coordinate other seal assemblies to maintain pneumoperitoneum.In the prior art, diaphragm seal guard member generally comprises four pieces and overlays
Plate, every piece of aligned and laminated plate are in 90 ° to 180 ° of covering of the fan, and four pieces of aligned and laminated plate sequences are overlapping and overlap, i.e. the first of the first aligned and laminated plate
Divide and be placed on the second part of the second aligned and laminated plate, the first part of the second aligned and laminated plate is placed in second of third aligned and laminated plate
On point, the first part of third aligned and laminated plate is placed on the second part of the 4th aligned and laminated plate, first part's quilt of the 4th aligned and laminated plate
It is placed on the second part of the first aligned and laminated plate, to surround the circular ring shape protection face with centre bore.In such design, dress
It is more complicated with technique.
The structure of four pieces of aligned and laminated plates is more complicated, and aligned and laminated plate quantity is more, and cost of manufacture is higher；And the assembly technology of aligned and laminated plate
It is more lengthy and tedious, it is more demanding to the proficiency of operating personnel.In view of the foregoing, it needs from the angle for simplifying structure and assembly technology
Degree sets out, and is improved for diaphragm seal guard member.
Invention content
The present invention is intended to provide a kind of seal assembly for puncture outfit, it can be with relatively simple structure and simplification
Assembly technology realizes the function of sealing and seal protection.
Based on above-mentioned purpose, technical scheme is as follows：
A kind of seal assembly for puncture outfit, including diaphragm seal comprising sealing hole, the diaphragm seal is to described in insertion
The instrument of sealing hole is sealed；Seal protection part, with the diaphragm seal adjacent to setting, for protecting the diaphragm seal to avoid
The diaphragm seal is damaged by the instrument, and the seal protection part includes at least one aligned and laminated plate；The aligned and laminated plate includes proximal end
Opening and remote stomidium, and extend to from the proximal openings protective bulkhead of the remote stomidium；The protective bulkhead includes at least two
A slit being laterally extended from the remote stomidium, the protective bulkhead is allowed to deform upon for the slit so that the remote stomidium expands
, consequently facilitating the instrument is passed through from the remote stomidium.
Further, the protective bulkhead includes the first protective bulkhead and the second protective bulkhead being connected, first protective bulkhead
Tapered, second protective bulkhead is arc-shaped.
Further, the radian of first protective bulkhead is 360 degree.
Preferably, the aligned and laminated plate include at least two second protective bulkheads, described at least two second protective bulkheads it
Between form notch.
Preferably, described at least two second protective bulkheads are uniformly arranged on first protective bulkhead.
Preferably, the aligned and laminated plate includes two second protective bulkheads, and the radian of each second protective bulkhead is 90
Degree.
Further, the slit includes the open end of the circumference positioned at the remote stomidium and the end far from the remote stomidium
End is tied, the terminating end is circular hole.
Preferably, at least two slit is distributed along the even circumferential of the remote stomidium.
Preferably, the protective bulkhead is equipped with 2 to 20 slits.
Preferably, the protective bulkhead is equipped with 6 slits, and the extended line of the slit is at the center of the remote stomidium
Place's intersection, each two adjacent slit form 60 ° of angles.
Preferably, the aligned and laminated plate is formed by thermoplastic elastomer (TPE) integrated injection molding.
Preferably, the seal protection part includes two aligned and laminated plates, the overlapping setting of two aligned and laminated plates, wherein one
The slit of a aligned and laminated plate removes the part other than slit by the protective bulkhead of another aligned and laminated plate and covers.
Preferably, the aligned and laminated plate further includes installation side, and the installation side is laterally extended from the proximal openings, the peace
Rim is equipped with to assemble the mounting hole of the aligned and laminated plate.
The present invention also provides a kind of puncture outfit including seal assembly described in any one of the above embodiments, the puncture outfit further includes
Core bar and sheath assembly are punctured, the seal assembly is provided in described sleeve pipe component.
Seal assembly and its puncture outfit according to the present invention for puncture outfit, including diaphragm seal and seal protection part, institute
It includes proximal openings and remote stomidium to state seal protection part, and the protective bulkhead of the remote stomidium is extended to from the proximal openings,
The seal protection part can diaphragm seal described in effective protection, avoid the sharp edge for the surgical instrument that the diaphragm seal is inserted into from drawing
Broken or tearing；The frictional force across the diaphragm seal when surgical instruments is inserted into and detaches can be reduced again, and then reduced described close
Sealer is driven and undesirably extended by frictional force；And the protective bulkhead of the seal protection part is simple in structure, quantity is few, to
So that assembly technology is simple.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram of puncture outfit according to the ... of the embodiment of the present invention；
Fig. 2 is the stereoscopic schematic diagram of sheath assembly according to the ... of the embodiment of the present invention；
Fig. 3 is the partial sectional perspective view of the sheath assembly in Fig. 2；
Fig. 4 is the exploded view of sealing membrane modules according to the ... of the embodiment of the present invention；
Fig. 5 is the partial sectional perspective view of sealing membrane modules according to the ... of the embodiment of the present invention；
Fig. 6 be according to embodiments of the present invention in diaphragm seal structural schematic diagram；
Fig. 7 is the exploded view of seal protection part according to the ... of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of seal protection part according to the ... of the embodiment of the present invention；
Fig. 9 is the bottom schematic view of seal protection part according to the ... of the embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.In retouching for the present invention
In stating, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower",
"front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " counterclockwise ", " axis
To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for solving
The present invention is released, and is not considered as limiting the invention.
In order to be more convenient for understanding, the side of close clinician manipulator is set as proximal end, and far from clinician's operation
It is distal end that the side of hand, which is close to the side of patient body,.In conjunction with Fig. 1, the top in figure is indicated close to clinician manipulator's
One end is proximal end；And the lower section illustrated is the one end being in contact with patient body, for distal end.It is shown in Figure 1, it is this hair
The overall structure of puncture outfit 100 in bright preferred embodiment.A kind of typical case's puncture outfit 100 includes to puncture core assembly 1 and casing
Component 2 punctures core assembly 1 and is inserted in sheath assembly 2 in the initial state.
Fig. 2 and Fig. 3 is respectively to remove the overall structure diagram and its broken section that puncture 1 rear enclosure tube assembly 2 of core assembly
Figure.Sheath assembly 2 has proximal end 22 and distal end 24, and the proximal end 22 is in patient's body in the patient distal end 24
It is interior.It in the typical application of one kind, punctures core assembly 1 and runs through sheath assembly 2, then drive sheath assembly 2 is together through skin openings
Place penetrates entire stomach wall and enters body cavity.Into after body cavity, puncture core assembly 1 be removed, sheath assembly 2 be left as instrument into
Go out the channel of body cavity.A kind of preferred sheath assembly 2, including the first seal assembly 3 and the second seal assembly 4.First sealing group
The cooperation fastening of the hook of the card slot of part 3 and the second seal assembly 4.The cooperation of hook and card slot is the fast lock knot that can quickly split
Structure.This facilitates the tissue or foreign matter for taking out patient's body when primarily to performing the operation.First seal assembly 3 and the second seal assembly
There are many realization methods for fast lock connection between 4.In addition to the structure of the present embodiment displaying, threaded connection, revotating card also can be used
Button or other quick locking structures.Selectable, the first seal assembly 3 and the second seal assembly 4 can be designed to quickly to tear open
The structure divided.
Fig. 3 depicts the composition and assembly relation of the first seal assembly 3.Lower housing 30 includes an elongated tubular 31, this is elongated
Pipe 31 limits the casing 32 through distal end 24 and is connected with shell 33.Lower housing 30 has the inner wall of support duck bill seal 36
34 and the air valve mounting hole 35 with 34 unicom of inner wall.Spool 350 is mounted in valve body 352 and is installed along with the mounting hole 35
In.The flange 362 of duck bill seal 36 is sandwiched between the inner wall 34 and lower cover 37.Consolidating between lower cover 37 and lower housing 30
Determine there are many modes, interference fit can be used, ultrasonic bonding is glued, and the modes such as fixed are buckled.Lower cover described in the present embodiment
37 4 mounting posts are interference fitted with 4 mounting holes 35 of lower housing 30, and this interference fit makes duck bill seal 36 be in pressure
Contracting state.With reference to figure 2 and Fig. 3, described sleeve pipe 32, inner wall 34, Duckbill seal 36, valve body 352 and spool 350 have collectively constituted
One chamber.In the present embodiment, the Duckbill seal 36 is single seam, but can also use other kinds of closure valve, including tongue type
Valve stitches duckbill valve more.When external device runs through the Duckbill seal 36, duckbilled 360 can open, but it is generally not provided
Relative to being fully sealed for the instrument.When the instrument is removed, the duckbilled 360 is closed automatically, to prevent the first chamber
Indoor fluid is revealed to external.
Fig. 3 further depicts the composition and assembly relation of the second seal assembly 4.Second seal assembly 4 includes upper cover 40, sealing
Membrane module 42 and upper shell 41.Sealing membrane modules 42 are clipped between upper cover 40 and upper shell 41.Between upper shell 41 and upper cover 40
Fixed form there are many, can be used interference fit, the modes such as ultrasonic welding is glued, and buckle is fixed.The present embodiment displaying connection
It is fixed by ultrasonic bonding between the mode upper shell 41 for being and upper cover 40.This fixation makes the sealing membrane modules 42
Proximal end is in compressive state.
Shown in Fig. 4, Fig. 5, the composition and assembly relation of sealing membrane modules 42 are depicted.Under sealing membrane modules 42 include
Fixed ring 420, diaphragm seal 5, middle fixed ring 424, protector 6 and upper fixed ring 429.Diaphragm seal 5 and protector 6 are sandwiched in lower solid
Determine between ring 420 and upper fixed ring 429.Specifically, lower fixed ring 420 is equipped with multiple pillars and hole, accordingly, middle fixed ring
424 surfaces opposite with lower fixed ring 420 also are provided with same amount of hole and pillar, and diaphragm seal 5 is equipped with the hole of double amount,
When assembly, the pillar of lower fixed ring 420 passes through the hole on diaphragm seal 5, is finally fixed in middle fixed ring 424 in corresponding hole,
Equally, middle fixed ring 424 is fixed in an identical manner in the corresponding hole of lower fixed ring 420.In addition, 424 court of middle fixed ring
Corresponding hole also is provided on the surface of protector 6 so that the pillar in upper fixed ring 429 can pass through sealing ring 428 and protect
Corresponding hole on device 6 is protected, is finally secured in middle fixed ring 424 so that sealing ring 428 and protector 6 are locked in middle fixation
On ring 424.Mutually matched pillar above-mentioned and hole are all using interference fit.
Protector 6 includes that overlapped that screening glass protects it from the surgical instrument of insertion for protecting diaphragm seal 5 for 2 sequences
Sharp edge scratch or tear.Sealing ring 428 is elastic membrane, includes the annular pleat of one or more radially (transverse direction) distributions
Wrinkle, the fold have lateral compliance, so that entire sealing membrane modules 42 can float in the second seal assembly 4.
In the present embodiment, diaphragm seal 5 and the component that sealing ring 428 is two separation are produced into reduce in other embodiments
This, diaphragm seal 5 and sealing ring 428 can also be designed to an entirety, at this point, sealing membrane modules 42 include lower fixed ring 420, it is close
Sealer 5, seal protector 6 and upper fixed ring 429.Upper fixed ring 429 is equipped with multiple pillars and hole, accordingly, lower fixed ring
420 opposite surfaces also are provided with same amount of hole and pillar, and seal protector 6 is located at the diaphragm seal 5 and sealing ring of integral type
428 top, by the installation of the first aligned and laminated plate 61 while 611 with the installation of the second aligned and laminated plate 62 while 621 mounted on corresponding pillar
On, diaphragm seal 5 and seal protector 6 are sandwiched between lower fixed ring 420 and upper fixed ring 429, to the formation of seal protector 6
Protection to diaphragm seal 5, and prevent from being punctured by instrument.Mutually matched pillar above-mentioned and hole are all using interference fit.
Sealing membrane modules 42 can be by much be made with the materials of different characteristics, to meet required elasticity or strong respectively
The requirement of degree.Such as diaphragm seal 5, sealing ring 428 are by superlastic such as relatively soft elastomeric materials, such as silica gel, isoprene rubber
Property material is made；Protector 6 uses semirigid thermoplastic elastomer (TPE), thermoplastic elastomer (TPE) to be also known as artificial rubber or synthesis rubber
Glue had both had the high resiliency of traditional cross-linking vulcanized rubber, ageing-resistant, the every excellent properties of oil resistivity, while but also with common modeling
Expect feature easy to process, that processing method is wide.Preferably, the material of seal protector 6 is TPU (thermoplastic polyurethane elastomer
Rubber), TPU hardness ranges are wide, resilience is good, lear energy is high, when it is by outer force effect, can deform, and
It when external force disappears, returns to the original form, it is possible thereby to fit closely instrument always, protects diaphragm seal 5, and then ensure sealing
Effect.And upper fixed ring 429, middle fixed ring 424 and lower fixed ring 420 are using relatively hard plastic materials such as makrolon
It is made.
In conjunction with shown in Fig. 4, Fig. 6, wherein Fig. 6 is the stereoscopic schematic diagram of 5 inside of diaphragm seal.It is elastic membrane that diaphragm seal 5 is whole,
Diaphragm seal 5 includes proximal openings 50, remote stomidium 52 and 50 sealed walls 54 extended that are proximally open from remote stomidium 52.It is described remote
Stomidium 52 is formed by sealing lip, for accommodating the instrument being inserted into and forming hermetic seal.The sealing lip can be it is non-circular, such as
Described in background of invention, sealing lip perimeter should be short enough and sturdy to ensure sealing reliability when applying 5mm instruments.In this example
Sealing lip is circular ring shape.The diaphragm seal 5 further includes radial flange 55, and 54 one end of sealed wall connects the sealing lip and the other end
Connect radial flange 55.Wherein, sealed wall 54 include circular ring shape wall part 544 and conical wall portion, circular ring shape wall part 544 with
Radial flange 55 connects, and conical wall portion connects the sealing lip and circular ring shape wall part 544.As previously mentioned, radial flange
55 are equipped with multiple apertures, in order to the installation of sealing membrane modules 42.Sealing lip have the function of one it is important, i.e.,：Due to it
Has certain rigidity, when its portion perimeter is by outer force effect, sealing lip can integrally deform, and keep deformed
Peripheral shape and size are generally uniform, it is possible thereby to fit closely instrument always, ensure the effect of sealing.
As shown in fig. 6, the conical wall portion of diaphragm seal 5 is in integrally back taper, the circle element of a cone of the tapered wall is set
The direction extended from remote stomidium 52 to radial flange 55 is " transverse direction ".In the present embodiment, sealed wall 54 includes circumscribed remote stomidium
52 and multiple plication regions 51 for extending transversely are originated from remote stomidium 52, the plication region 51 includes at least one fold list
Member, each wrinkling element, which is originated from remote stomidium 52 to the edge of conical wall portion, to be extended.Each wrinkling element includes fold
The slave remote stomidium 52 of peak and corrugation valleys, each wrinkling element extends laterally to the entire development length in edge of conical wall portion
On fold peak to corrugation valleys vertical range be equal, the minimum range along corrugated wall at fold peak to corrugation valleys is equal,
The crimp shape of i.e. each wrinkling element is consistent, the whole height of corrugated wall is also consistent, in this way, fold is arranged
On sealed wall 54, but do not increase the taper of sealed wall 54, when can reduce instrument and detaching, diaphragm seal varus occurs for diaphragm seal 5
Probability.Each wrinkling element extends laterally to the side of the conical wall portion of the sealed wall 54 from the sealing lip
Edge, whole diaphragm seal 5 is elastic membrane, and fold 51 can play the role of increasing sealing lip elasticity and extensibility.Preferably, all pleats
Crimp shape all same, the height of corrugated wall of the wrinkling element in wrinkle region are also identical.Sealed wall 54 further includes flat site 53,
Each flat site 53 is extended transversely and is spaced between two adjacent plication regions 51, and each folded region
Domain 51 is spaced between two adjacent flat sites 53.In this way, plication region 51 is arranged at remote stomidium 52, increase remote
The circumferential perimeter of stomidium 52, reduces the real contact area between instrument and diaphragm seal 5；Allow the sealing for constituting remote stomidium 52
Lip smoothly expansion or contraction, to adapt to the surgical operating instrument of different-diameter, while still keeping the sealing with surgical instruments；And
And due to the presence of multiple wrinkling elements, allow laterally and vertically moving without loss of seal for surgical instruments；And it reduces and answers
Hoop strain (stress) when with major diameter instrument, to reduce tightening force and frictional resistance for instrument.Sealed wall 54
On be additionally provided with flat site 53, flat site 53 increases axial extensional rigidity, can greatly reduce and frictional resistance and change
Kind stick-slip, reduces the probability that diaphragm seal varus occurs.
Further, sealed wall 54 includes the plication region 51 that N groups are formed by the wrinkling element, the numerical value model of the N
Enclose is 2 to 20；It is additionally provided with flat site 53 on sealed wall 54, the plication region 51 and flat site 53 is spaced sets
It sets；Each plication region includes 1 to 20 continuous wrinkling element.Can increase remote stomidium 52 circumferential perimeter and
It is demoulded when conducive to manufacture, manufacture and saving material easy to process.
Each plication region 51 is symmetrical arranged, and the central shaft of the straight line where its symmetry axis and the remote stomidium 52
Line intersects.The area equation of each flat site 53, and the area of the flat site 53 is more than the plication region 51
Area, be conducive to manufacture when demould, manufacture easy to process.Preferably, each wrinkling element is from the remote stomidium 52
The edge of the conical wall portion of the sealed wall 54, and each wrinkling element are extended laterally to from remote stomidium transverse direction
Extend and is contacted with annular seal wall 544.The diaphragm seal 5 is substantially in back taper, in favor of the disengaging distal end of surgical instruments
Hole 52.The diaphragm seal 5 is formed by flexible material integrated injection molding, it is preferable that and diaphragm seal 5 is formed by flexible material integrated injection molding,
Its material is polyisoprene.
Seal protection part 6 includes the first protective bulkhead and the second protective bulkhead being connected, and first protective bulkhead is tapered, institute
The second protective bulkhead is stated to be arc-shaped.Set direction that the busbar of the taper extends from from remote stomidium 63 to the second protective bulkhead or
Edge is " transverse direction " perpendicular to the direction of the second protective bulkhead.As shown in figure 4, seal protection part 6 and the neighbouring setting of diaphragm seal 5, are used for
The central seal body for protecting diaphragm seal 5 is perforated or is torn caused by protecting it from the sharp edge of the surgical instrument of insertion.In this hair
In bright embodiment, with reference to figure 7 to Fig. 9, seal protection part 6 includes at least one aligned and laminated plate.Preferably, seal protection part
6 include two aligned and laminated plates：First aligned and laminated plate 61 and the second aligned and laminated plate 62, and 62 shape of the first aligned and laminated plate 61 and the second aligned and laminated plate
Shape, size and structure all same.By taking the first aligned and laminated plate 61 as an example, the first aligned and laminated plate 61 includes first protective bulkhead 616, installation
While 611 and the first protective bulkhead 616 of connection and when installation 611 the second protective bulkhead 615, the first protective bulkhead 616 is taper, second
Protective bulkhead 615 is arc-shaped.Two the second protective bulkheads 615, each second protection are arranged on the circumference of first protective bulkhead 616
The other end of wall 615 is connect with an installation side 611, and the second protective bulkhead 615 and the radian for installing side 611 are equal, the radian
It is no more than 90 degree.Notch 612,61 and second aligned and laminated plate 62 of such first aligned and laminated plate are formed between two the second protective bulkheads 615
When overlapping setting, by 90 degree clockwise or counterclockwise of the second aligned and laminated plate 62, as shown in figure 8, two of the first aligned and laminated plate 61
Second protective bulkhead 615 is located in two notches 622 of the second aligned and laminated plate 62, two cylindrical protectives of the second aligned and laminated plate 62
Wall 625 is located in two notches 612 of the first aligned and laminated plate 61, the second protective bulkhead 615 of the first aligned and laminated plate 61 and installation side
611 with the cylindrical protective wall 625 of the second aligned and laminated plate 62 and installation side 621 it is not be overlapped, be collectively formed conical protective bulkhead and
Side is installed.Optionally, the second protective bulkhead 615 and the radian on installation side 611 are equal to 90 degree；In this way, the first aligned and laminated plate 61 and
When two aligned and laminated plates 62 overlap setting, the second protective bulkhead 615 of the first aligned and laminated plate 61 and the circle for installing side 611 and the second aligned and laminated plate 62
Cylindricality protective bulkhead 625 and installation side 621 can be overlapped and abut, be collectively formed 360 degree conical protective bulkhead and 360 degree
Side is installed, to protect the circular ring shape wall part 544 and radial flange 55 of sealed wall 54 comprehensively.Those skilled in the art should recognize
Know, the second protective bulkhead 615 and the radian for installing side 611 are shown for illustration purposes only, and actually radian can be arbitrarily not
More than 90 number of degrees values, such as 30 degree, 45 degree, 60 degree, the circular ring shape wall part 544 and radial flange of sealed wall 54 may be implemented
55 protection.
As shown in fig. 7, the first protective bulkhead 616 is in N number of screening glass 613 by 614 decile of N number of slit, wherein 2≤N≤20, narrow
Seam 614 includes the open end of relatively close remote stomidium 63 and the terminating end far from the remote stomidium, and the terminating end is set as circular hole
617, it crosses the terminating end to avoid slit 614 and undesirably extends, the first protective bulkhead 616 is caused to be torn.Every two
A screening glass 613 is formed between a adjacent slit 614.The radian of first protective bulkhead 616 is 360 degree, i.e. N number of slit 614
360 degree of the first protective bulkhead 616 is collectively formed with N number of screening glass 613.Preferably, the protective bulkhead is equipped with 6 slits
614, the extended line of the slit intersects at the center of the remote stomidium, and 60 ° of angles are formed between two neighboring slit.At this
In another embodiment of invention, the first protective bulkhead 616 is equipped with 4 slits 614, and the extended line of slit 614 is in the distal end
Intersect at the center in hole, 614 shape of two neighboring slit angle in 90 °.Two above preferred embodiment, which gives, can obtain reason
Think effect, while being easier the better embodiment of machine-shaping again, certainly, by theory analysis and experiment test, in N values
For (including 2 and 20 two endpoint values) in 2 to 20 numberical range, can make 6 effective protection diaphragm seal 5 of seal protection part,
Diaphragm seal 5 is scratched or torn when surgical instruments being avoided to enter patient's body by puncture outfit, assembly technology is simple, simple in structure,
Quantity is few.
Seal protection part 6 includes two identical aligned and laminated plates, by the second aligned and laminated plate 62 relative to the first aligned and laminated plate 61
Setting is overlapped after 90 degree clockwise or counterclockwise, seal protection part 6 is collectively formed；It is described it is overlapping setting include：Wherein one
Two cylindrical protective walls of a aligned and laminated plate are located in the notch of another aligned and laminated plate, and the slit of one of aligned and laminated plate
It is covered by the screening glass of another aligned and laminated plate.As shown in Fig. 8 or Fig. 9, the slit 614 of the first aligned and laminated plate 61 is by the second aligned and laminated plate 62
Screening glass 623 cover, the slit 624 of the second aligned and laminated plate 62 covered by the screening glass 613 of the first aligned and laminated plate 61, as a result, first
Seal protection part 6 is collectively formed in aligned and laminated plate 61 and the second aligned and laminated plate 62, and the conical surface of the first protective bulkhead is in nothing other than remote stomidium 63
The conical surface in gap forms the protection to diaphragm seal 5.
Seal protection part 6 includes proximal openings and remote stomidium 63, and proximally opening extends to the protection of remote stomidium 63
Wall.By taking the first aligned and laminated plate 61 as an example, protective bulkhead 616 includes at least two slits 614 being laterally extended from remote stomidium 63, slit
Protective bulkhead 616 is allowed to deform upon for 614 setting so that remote stomidium 63 is expanded, consequently facilitating surgical instrument is from remote stomidium 63
It passes through.And in the process, distally the circumferential N number of screening glass 613 in hole 63 is still close to instrument periphery, and auxiliary seal film plays
Maintain the effect of pneumoperitoneum.Slit 614 includes the open end of the relatively close remote stomidium 63 and the separate remote stomidium
Terminating end, the terminating end is circular hole 617, when the circular hole 617 can avoid surgical instruments insertion or detach puncture outfit, slit
614 cross the terminating end and extend.Sealing membrane modules 42 include diaphragm seal 5 and seal protection part 6, and seal protection part 6 is close
Diaphragm seal 5 is arranged, and positioned at the proximal end of diaphragm seal 5, when surgical instruments is inserted into puncture outfit, surgical instruments first contacts seal protection
Part 6 enters the remote stomidium 52 of diaphragm seal 5 from the remote stomidium 63 of seal protection part 6, because seal protection part 6 is TPU materials, has
Preferable resilience, i.e. external force remove the good feature of rear restoration, and distally the circumferential screening glass 611 in hole 63 is still close to instrument
Periphery, auxiliary seal film play the role of maintaining pneumoperitoneum.Sealing membrane modules 42 include diaphragm seal 5 and seal protection part 6, when
When no surgical instruments is inserted into puncture outfit, the first protective bulkhead of seal protection part 6 is in inverted cone；Seal protection part 6 is close
Diaphragm seal 5 is arranged, and positioned at the proximal end of diaphragm seal 5.When surgical instruments is inserted into puncture outfit, the sharp edge of surgical instruments first contacts
Seal protection part 6, the remote stomidium 52 of diaphragm seal 5 is entered from the remote stomidium 63 of seal protection part 6, and screening glass is divided by outer force effect
It is not separated with adjacent screening glass, the conical protective bulkhead of seal protection part 6 can effectively prevent diaphragm seal 5 by the cutting edge of a knife or a sword of surgical instruments
Sharp edge is scratched or is torn.When surgical instruments detaches puncture outfit, external force fades away, because seal protection part 6 is TPU materials, tool
There are preferable resilience, i.e. external force to remove the good feature of rear restoration, the slit of one of aligned and laminated plate is pressed by another
The screening glass of pasting board covers, and the first protective bulkhead gradually reverts to inverted cone, forms the protection to diaphragm seal 5；Sealing is protected
The conical protective bulkhead of guard 6 can effectively prevent diaphragm seal 5 to be scratched or torn by the sharp edge of surgical instruments.
The specific implementation mode of the present invention provides a kind of improved seal protection part 6, diaphragm seal 5, contains the sealing
The sealing membrane modules 42 of guard member 6, contain the seal assembly 4 of the sealing membrane modules 42, and apply the seal assembly 4
Puncture outfit 100, it is to be understood that the seal protection part 6 with preceding feature, using the seal assembly 4 of the seal protection part 6
And the theme that 4 puncture outfit 100 of seal assembly is claimed is applied, it is done based on above-described embodiment any
Change, modification, replacement and modification are each fallen within the scope of the present patent application protection.It is according to the present invention for puncture outfit
Seal assembly and its puncture outfit, seal protection part 6 includes proximal openings and remote stomidium, and extends to institute from the proximal openings
State the protective bulkhead of remote stomidium, seal protection part 6 can effective protection diaphragm seal 5, avoid the surgical instrument that diaphragm seal 5 is inserted into
Sharp edge is scratched or is torn；The frictional force across diaphragm seal 5 when surgical instruments is inserted into and detaches can be reduced again, and then reduce 7
Diaphragm seal 5 is driven and undesirably extended by frictional force；And the protective bulkhead of seal protection part 6 is simple in structure, quantity is few, to
So that assembly technology is simple.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (14)
1. a kind of seal assembly for puncture outfit, including
Diaphragm seal comprising sealing hole, the diaphragm seal are sealed the instrument for being inserted into the sealing hole；
Seal protection part, with the diaphragm seal adjacent to setting, for protecting the diaphragm seal to avoid the diaphragm seal described
Instrument damages, and the seal protection part includes at least one aligned and laminated plate；
It is characterized in that：The aligned and laminated plate includes proximal openings and remote stomidium, and is extended to from the proximal openings described remote
The protective bulkhead of stomidium；The protective bulkhead includes at least two slits being laterally extended from the remote stomidium, and the slit is permissible
The protective bulkhead deforms upon so that the distal end bore expansion, consequently facilitating the instrument is passed through from the remote stomidium.
2. seal assembly according to claim 1, it is characterised in that：The protective bulkhead includes the first protective bulkhead being connected
With the second protective bulkhead, first protective bulkhead is tapered, and second protective bulkhead is arc-shaped.
3. seal assembly according to claim 2, it is characterised in that：The radian of first protective bulkhead is 360 degree.
4. seal assembly according to claim 2, it is characterised in that：The aligned and laminated plate includes at least two second guarantors
Retaining wall forms notch between described at least two second protective bulkheads.
5. seal assembly according to claim 4, it is characterised in that：Described at least two second protective bulkheads are uniformly arranged on
On first protective bulkhead.
6. seal assembly according to claim 5, it is characterised in that：The aligned and laminated plate includes two second protections
The radian of wall, each second protective bulkhead is 90 degree.
7. seal assembly according to claim 1, it is characterised in that：The slit includes the circumference positioned at the remote stomidium
Open end and far from the remote stomidium terminating end, the terminating end be circular hole.
8. seal assembly according to claim 1, it is characterised in that：Circle of at least two slit along the remote stomidium
Week is uniformly distributed.
9. seal assembly according to claim 1, it is characterised in that：The protective bulkhead is equipped with 2 to 20 slits.
10. seal assembly according to claim 9, it is characterised in that：The protective bulkhead is equipped with 6 slits, institute
The extended line for stating slit intersects at the center of the remote stomidium, and each two adjacent slit forms 60 ° of angles.
11. seal assembly according to claim 1, it is characterised in that：The aligned and laminated plate is integrally noted by thermoplastic elastomer (TPE)
It moulds.
12. seal assembly according to claim 1, it is characterised in that：The seal protection part includes being overlayed described in two
Plate, the overlapping setting of two aligned and laminated plates, the slit of one of aligned and laminated plate are removed by the protective bulkhead of another aligned and laminated plate
Part covering other than slit.
13. seal assembly according to claim 12, it is characterised in that：The aligned and laminated plate further includes installation side, the peace
Rim is laterally extended from the proximal openings, and the installation side is equipped with to assemble the mounting hole of the aligned and laminated plate.
14. a kind of includes the puncture outfit as weighed 1 to 13 any one of them seal assembly, it is characterised in that：The puncture outfit is also
Including puncturing core bar and sheath assembly, the seal assembly is provided in described sleeve pipe component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299930.5A CN108784792B (en) | 2017-04-28 | 2017-04-28 | Sealing assembly and puncture outfit with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299930.5A CN108784792B (en) | 2017-04-28 | 2017-04-28 | Sealing assembly and puncture outfit with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108784792A true CN108784792A (en) | 2018-11-13 |
| CN108784792B CN108784792B (en) | 2021-11-05 |
Family
ID=64054009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710299930.5A Active CN108784792B (en) | 2017-04-28 | 2017-04-28 | Sealing assembly and puncture outfit with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108784792B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870872A (en) * | 2021-01-27 | 2021-06-01 | 江西中烟工业有限责任公司 | Improved blowing pipe applied to tobacco pulse dust collector |
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| US5342315A (en) * | 1993-04-12 | 1994-08-30 | Ethicon, Inc. | Trocar seal/protector assemblies |
| CN1692886A (en) * | 2004-03-31 | 2005-11-09 | 伊西康内外科公司 | Trocar seal assembly |
| US20100274193A1 (en) * | 2008-10-23 | 2010-10-28 | Patton Surgical Corporation | Cannula Seal |
| CN105662545A (en) * | 2014-11-16 | 2016-06-15 | 广州迪克医疗器械有限公司 | Radial sealing assembly, end sealing element and puncture device |
| CN106175846A (en) * | 2016-08-02 | 2016-12-07 | 成都五义医疗科技有限公司 | A kind of perforator sealing system of fold-type |
| 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 |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5342315A (en) * | 1993-04-12 | 1994-08-30 | Ethicon, Inc. | Trocar seal/protector assemblies |
| CN1692886A (en) * | 2004-03-31 | 2005-11-09 | 伊西康内外科公司 | Trocar seal assembly |
| US20100274193A1 (en) * | 2008-10-23 | 2010-10-28 | Patton Surgical Corporation | Cannula Seal |
| CN105662545A (en) * | 2014-11-16 | 2016-06-15 | 广州迪克医疗器械有限公司 | Radial sealing assembly, end sealing element and puncture device |
| CN106175846A (en) * | 2016-08-02 | 2016-12-07 | 成都五义医疗科技有限公司 | A kind of perforator sealing system of fold-type |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870872A (en) * | 2021-01-27 | 2021-06-01 | 江西中烟工业有限责任公司 | Improved blowing pipe applied to tobacco pulse dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108784792B (en) | 2021-11-05 |
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