CN209511111U - Contact sealing structure, seal assembly and stamp card - Google Patents

Abstract

The utility model relates to contact sealing structure, seal assembly and stamp card, including the first sealing flange and lip ring, wherein, first sealing flange is equipped at least one first perforation, the lip ring is correspondingly connected at first perforation, the lip ring is equipped with deformation cavity, and sealing is equipped on the inside of the deformation cavity sidewalls, and the sealing contacts sealing with the operation instrument formation being inserted into it.The seal assembly of the stamp card of the utility model, due to being equipped with deformation cavity in contact sealing structure, the inside of deformation cavity is arranged in sealing, when operating instrument across sealing, the deformation cavity can provide biggish deformation space and expand outwardly to sealing or inwardly tighten, so that sealing can adapt to passing through for the operation instrument of various outer diameter, and good contact sealing effect is provided, improves the versatility of seal assembly.

Description

Contact sealing structure, seal assembly and stamp card

Technical field

The utility model relates to a kind of stamp card structures, block more particularly to a kind of contact sealing structure, seal assembly and stamp.

Background technique

Stamp card is that robot carries out the common tool of one of abdominal operation, is first pierced into during operation in the abdomen of patient Aerating needle, while it being filled with gas to intraperitoneal, to expand abdominal space, then enter abdominal cavity formation channel by stabbing card thorn, just In the operation of operation, the importance of air-tightness is obvious in this process.In order to ensure patient's abdomen in surgical procedure The gas in portion will not be revealed, and sealing structure can be all arranged in existing stamp card, and sealing structure includes close when operating instrument for having The seal assembly of envelope and leak-tight seal part when for without operation instrument, wherein seal assembly includes that center has round-meshed sealing The diameter in portion, the circular hole is slightly less than the outer diameter of instrument, so that sealing can be with palette in device when instrument passes through circular hole Contact sealing is formed on the outer wall of tool.

Due to protruding into intraperitoneal operation instrument more than one in the course of surgery, and the diameter of different operation instruments Be not quite similar, if existing seal assembly only by the diameter design of the center hole of sealing at the outer diameter for being slightly less than instrument, It is the insertion demand for being unable to satisfy the operation instrument of different-diameter, this is because the biggish operation instrument of outer diameter passes through center circle Kong Shi causes center hole that the outer wall for operating instrument is embraced to obtain ratio since the deformation quantity of the admissible deformation of center hole is smaller Relatively tight, the frictional force of the outer wall of the opposite operation instrument of center hole is larger so that operation instrument penetrate or extract it is relatively difficult, no Conducive to the normal operating of operation, while it can also reduce the versatility of seal assembly.

Utility model content

Based on this, it is necessary to which the deformation quantity for providing a kind of permissible deformation of sealing is larger, can adapt to different-diameter Operate the contact sealing structure of instrument insertion.

The utility model provides a kind of contact sealing structure, including the first sealing flange and lip ring, wherein institute The first sealing flange is stated equipped at least one the first perforation, the lip ring is correspondingly connected in first perforation Place, the lip ring are equipped with deformation cavity, sealing, the sealing and insertion are equipped on the inside of the deformation cavity sidewalls Operation instrument in it forms contact sealing.

The lip ring includes ring lining and hermetically sealed case, the ring lining in one of the embodiments, The axis of side wall towards lip ring be recessed, the hermetically sealed case integrally entangles the ring lining, the ring lining Sunk area and the hermetically sealed case hermetically surround the deformation cavity.

It in one of the embodiments, further include the second sealing flange for being set to the lip ring bottom, it is described Ring lining is integrally connected between first sealing flange and the second sealing flange, and the hermetically sealed case is set to described first Between sealing flange and the second sealing flange, second sealing flange is equipped with the first air inlet being connected to the deformation cavity Channel.

The ring lining includes towards the inclined upper inclination of the lip ring axis in one of the embodiments, Wall deviates from the inclined lower inclined wall of the lip ring axis, and the sealing is arranged in the upper inclined wall and lower inclination Between wall.

The arc-shaped recess of the axis of the side wall of the ring lining towards lip ring in one of the embodiments,.

The lip ring is annular air-pocket in one of the embodiments, and the sealing is arranged in the annular The inside of air bag.

The annular air-pocket is equipped with the second inlet channel in one of the embodiments,.

Identical in order to solve the problems, such as, the utility model additionally provides a kind of seal assembly, including lower case, lid are located at institute State the contact sealing structure of the upper cover and any of the above-described scheme on the upper opening of lower case, wherein the contact seals In the upper cover, the upper cover is respectively provided with a third perforation in position corresponding with each first perforation.

It in one of the embodiments, further include being set to the intracorporal anti-return sealing structure of the lower casing, it is described to prevent back Stream sealing structure is located at the underface of the lip ring.

The anti-return sealing structure includes at least two panels to the anti-return sealing structure in one of the embodiments, The flexible sealing fin that axis direction tilts down, the position of adjacent two panels flexible sealing fin docking is formed at least to be sealed together Seam.

The shape that the sealing seam is constituted in one of the embodiments, is " one " word, " ten " word or " Y " word.

The anti-return sealing structure includes magnetic part and closed pore part in one of the embodiments, the magnetic part Center is equipped with the third that is overlapped with the axis of the lip ring of axis and perforates, and the closed pore part, which is adsorbed, seals up described the Three perforation.

Identical in order to solve the problems, such as, the utility model additionally provides a kind of stamp card, including stamp card pipe and any of the above-described The seal assembly of scheme, the lower part of the lower case are equipped with mounting hole, and the upper end of the stamp card pipe is plugged in the mounting hole.

The utility model contacts sealing structure, and due to being equipped with deformation cavity in contact sealing structure, sealing setting exists The inside of deformation cavity, when operating instrument across sealing, which can provide biggish deformation space to sealing Portion expands outwardly or inwardly tightens, so that sealing can adapt to passing through for the operation instrument of various outer diameter, and provides good Sealing effect is contacted, the versatility of seal assembly is improved.

Detailed description of the invention

Fig. 1 is after the leak tight seal of an embodiment of the present invention removes hermetically sealed case and the second sealing flange Schematic diagram；

Fig. 2 is that the leak tight seal of another embodiment of the utility model removes the schematic diagram after hermetically sealed case；

Fig. 3 is the seal assembly decomposition texture schematic diagram of an embodiment of the present invention；

Fig. 4 is the schematic cross-section under the seal assembly assembled state of embodiment illustrated in fig. 3；

Fig. 5 is the decomposition diagram of the seal assembly of the stamp card of another embodiment of the utility model；

Fig. 6 is the schematic cross-section of the assembled state of the seal assembly of the stamp card of embodiment illustrated in fig. 5；

Fig. 7 is the structural schematic diagram of the anti-return sealing element of an embodiment of the present invention.

Wherein, 100, upper cover；101, the first accommodating cavity；102, third is perforated；200, lower case；201, the second accommodating cavity； 202, it is open；203, mounting hole；300, stamp card pipe；1, sealing structure is contacted；10a, deformation cavity；10b, sealing；11, first Sealing flange；11a, the first perforation；12, ring lining；12a, upper inclined wall；12b, lower inclined wall；13, hermetically sealed case；14, Two sealing flanges；14a, the second perforation；14b, the first inlet channel；2, anti-return sealing structure；21, flexible sealing fin；22, close Joint seal；23 magnetic parts；23a, third perforation；24, closed pore part.

Specific embodiment

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this The disclosure of type understands more thorough and comprehensive.

It should be noted that it can directly on the other element when element is referred to as " being set to " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.When an element is considered as " coupling " another element, it can To be to be directly coupled to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " water It is flat ", "left", "right" and similar statement for illustrative purposes only, be not meant to be the only embodiment.Herein Used term " distal end ", " proximal end " are used as the noun of locality, which is interventional medical device field common terminology, wherein " distal end " indicates that one end in surgical procedure far from operator, " proximal end " indicate one end that proximal operator is depended in surgical procedure.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet Include any and all combinations of one or more related listed items.

In conjunction with shown in Fig. 1, Fig. 2, Fig. 3, Fig. 5, the contact sealing of the preferred embodiment in the utility model is schematically showed Structure comprising the first sealing flange 11 and lip ring (not labeled), wherein the first sealing flange 11 is equipped at least one A first perforation 11a, lip ring is correspondingly connected, and lip ring is equipped with deformation cavity 10a at the first perforation 11a, Deformation cavity 10a inside sidewalls are equipped with sealing 10b, and sealing 10b contacts close with the operation instrument formation being inserted into it Envelope；Sealing 10b can be a part of lip ring side wall, or other structures to be arranged on lip ring side wall, Such as annular rib etc..

Under normal conditions, the diameter of sealing 10b is set as being slightly less than the outer diameter of operation instrument, to ensure to operate instrument Side wall can effectively contact fitting with the inner wall of sealing 10b, to guarantee the reliability of sealing；When operation instrument is inserted into sealing When in portion 10b, operation instrument can squeeze sealing 10b and expand outwardly, and when sealing 10b is expanded outwardly, deformation cavity 10a can To provide biggish deformation space, so that sealing 10b is expanded outwardly, operation instrument is enable to be smoothly inserted into sealing In 10b, thus sealing 10b can adapt to the operation instrument of various outer diameter and pass through, thus ensure that seal assembly have compared with While the contact sealing effect got well, the versatility of seal assembly is improved.

In order to guarantee that deformation cavity 10a is capable of providing preferable deformation space, the material of deformation cavity 10a is constituted, including The material of sealing 10b can be elastic material, such as the materials such as silica gel or rubber.

More specifically, lip ring includes ring lining 12 and hermetically sealed case 13, the side wall direction of ring lining 12 The axis of lip ring is recessed, and hermetically sealed case 13 is whole to entangle ring lining 12 so that the sunk area of ring lining 12 with Hermetically sealed case 13 hermetically surrounds deformation cavity 10a.

Deformation cavity 10a is inflatable seal cavity, relies primarily on toward inflation inside deformation cavity 10a, makes deformation There is cavity 10a certain rigidity to support sealing 10b, to ensure that sealing 10b and the contact for operating instrument side wall are close Sealing property, when operate instrument be inserted into sealing 10b when, deformation cavity 10a equally understands compressive deformation, to sealing 10b to Outer expansion provides enough deformation spaces, is passed through with can adapt to the operation instrument of various outer diameter, when operation instrument is from sealing After taking away in 10b, ring lining 12 and sealing 10b are synchronized under the action of air pressure in deformation cavity 10a and are restored to raw bits It sets.

In order to meet the requirement inflated to deformation cavity 10a, the contact sealing structure of the utility model embodiment is also The second sealing flange 14 including being set to lip ring bottom, the second sealing flange 14 are that the first perforation 11a is corresponding Position be equipped with the second perforation 14a, ring lining 12 is integrally connected between the first sealing flange 11 and the second sealing flange 14, The upper end of ring lining 12 is connect with the first perforation 11a, and lower end is connect with the second perforation 14a, and it is close that hermetically sealed case 13 is set to first It seals between flange 11 and the second sealing flange 14, multiple the be connected to deformation cavity 10a is equipped on the second sealing flange 14 One inlet channel 14b；One end of first inlet channel 14b is connected to deformation cavity 10a, and the other end and stamp card insertion enter abdominal cavity Pipeline (stamp card pipe 300) connection.

In this way, can using intraperitoneal gas give deformation cavity 10a inflate, and the air pressure of deformation cavity 10a with Intraperitoneal air pressure is of substantially equal, heaves state to guarantee that ring lining 12 is in always, to provide support to sealing 10b, Guarantee the contact sealing performance of sealing 10b；In addition, when operating instrument across sealing 10b, it is intraperitoneal to be in unaerated shape State, the support that unaerated deformation cavity 10a does not temporarily provide support to sealing 10b or provides is weaker, to be more advantageous to operation Instrument wears sealing 10b.

As shown in Figure 1, ring lining 12 includes towards the inclined upper inclined wall 12a of lip ring axis, away from annular Sealing element axis inclined lower inclined wall 12b, sealing 10b setting is between upper inclined wall 12a and lower inclined wall 12b.

When the operation instrument for being inserted into sealing 10b, which squeezes sealing 10b, to be expanded outwardly, upper inclined wall 12a and lower inclination Wall 12b is towards a side oscillation or bending of deformation cavity 10a, to reduce the resistance that sealing 10b is expanded outwardly, deformation cavity 10a then provides the space expanded outwardly to sealing 10b, while upper inclined wall 12a and lower inclined wall 12b are by selfer The effect of power has the trend to set back always, so as to make sealing 10b hold operation instrument tightly always, to guarantee to seal Portion provides good contact sealing performance；When operation instrument is taken away out of sealing 10b, upper inclined wall 12a and lower inclined wall 12b Effect to air pressure restores to home position, while sealing 10b is inwardly contracted to home position；In addition, when operation instrument exists When moving to and fro in sealing 10b, upper inclined wall 12a and lower inclined wall 12b play a supportive role to sealing 10b, so as to Enough dragging effects for reducing operation instrument and sealing 10b being generated due to by friction effects.

As shown in Fig. 2, in another embodiment, the axis of side wall towards the lip ring of ring lining 12 is arc-shaped recessed It falls into；Preferably arc-shaped depression can also be the shaped depressions such as ellipse or parabola；The ring lining 12 of such structure mainly according to The air pressure generated by cavity 17 to provide support to sealing 10b, and the wall thickness of lip ring 12 is generally relatively thin at this time, to give Sealing 10b provides good deformation condition.

In addition, in other embodiments, annular air-pocket can also be set by lip ring, sealing 10b is arranged In the inside of annular air-pocket, and the second inlet channel is equipped on annular air-pocket, to simplify the structure of contact seals.

When operation instrument is inserted into sealing, cavity (deformation cavity) compressive deformation of annular air-pocket gives sealing It expands outwardly and deformation space is provided, after operation instrument is taken away out of sealing, what the cavity and sealing of annular air-pocket synchronized Restore to home position.

Identical in order to solve the problems, such as in conjunction with shown in Fig. 3 to Fig. 6, the utility model additionally provides a kind of seal assembly, packet Include contact seals 1, upper cover 100 and lower case 200, wherein upper cover 100 is provided with the first accommodating cavity 101, contact seals 1 It is set in the first accommodating cavity 101, lower case 200 is equipped with the second accommodating cavity 201, and the top of the second accommodating cavity 201 is equipped with opening 202, the lid of upper cover 100 is located in the opening 202, and upper cover 100 is respectively provided with one in position corresponding with each first perforation 11a Third perforation 102；Seal assembly further includes the anti-return sealing structure 2 being set in the second accommodating cavity 201 of lower case 200, Anti-return sealing structure 2 is located at the underface of lip ring 12.

Anti-return sealing structure 2 is close including the flexibility that at least two panels is tilted down to 2 axis direction of anti-return sealing structure Mounting 21, flexible sealing fin 21 are integrally connected at the lower edge of the second perforation 14a of the second sealing flange 14, and adjacent two panels is soft Property diaphragm seal 21 dock position be formed at least together sealing seam 22；When operating instrument by anti-return sealing structure 2, behaviour Sealing seam 22 is strutted as instrument, is pierced by out of sealing seam 22, and after being extracted in operation instrument anti-return sealing structure 2, it is flexible Diaphragm seal 21, which is mutually drawn close, closes sealing seam 22, also has with the air pressure in time stamp card pipe 300 and squeezes flexible sealing fin 21 And there is the trend mutually drawn close, by the tighter of 22 pass of sealing seam, to effectively prevent the leakage of gas in intraperitoneal field of operation.

Preferably, if the quantity of sealing seam 22 is that together, sealing the shape that seam 22 is constituted can be linear type, if sealing The quantity of seam 22 is twice, then sealing the shape that seam 22 is constituted can be " ten " font, if the quantity of sealing seam 22 is three, The shape that sealing seam 22 is constituted can be " Y " font, in short, the quantity of sealing seam 22 is more, can be conducive to operate instrument and pass through to prevent Leak seals parts 2.

As shown in fig. 7, the anti-return sealing structure 2 of another structure type is also disclosed in the utility model embodiment, The anti-return sealing structure 2 includes magnetic part 23 and closed pore part 24, and the center of magnetic part 23 is equipped with axis and lip ring The third perforation 23a that axis is overlapped, closed pore part 24, which is adsorbed, seals up third perforation 23a.

Due at the center of magnetic part 23 be equipped with third perforate 23a, according to the magnetic line of force distribution situation of magnetic part 23 it is found that The third magnetic attraction at the position 23a of perforating is maximum, and therefore, closed pore part 25 has always to moving at the third perforation position 23a Trend, when operating instrument across third perforation 23a, closed pore part 25 is arrived the side of third perforation 23a at operation instrument top, and After operating instrument extraction out of third perforation 23a, closed pore part 25 is returned rapidly by the big effect of magnetic attraction at third perforation 23a To at third perforation 23a, third perforation 23a is sealed, so as to effectively prevent the leakage of gas in intraperitoneal field of operation.

It is identical in order to solve the problems, such as, additionally provide a kind of stamp card in the utility model embodiment, including stamp card pipe 300 and The seal assembly of any of the above-described scheme, stamp card pipe 300 can be detachably connected with seal assembly, be also possible to permanent connection, example Such as, the mode being detachably connected, which can be, to be set in the lower part of lower case 200 to mounting hole 203, and the upper end for stabbing card pipe 300 is plugged in In mounting hole 203, ring type seal can be set in the outer wall of stamp card pipe 300, be connected with improving stamp card pipe 300 and mounting hole 203 The leakproofness at place is connect, such connection type can be adapted for the material and the different situation of lower case material that stab card pipe 300, than Such as, stamp card pipe 300 is metal tube, in order to reuse, it may be considered that such connection type；Can also by lower case 200 with The stamp integrated molding realization of card pipe 300 is permanently connected, and so as to simplify the structure that stamp blocks, such connection type is suitable for disposably Stab the service condition of card.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (13)

1. a kind of contact sealing structure, which is characterized in that including the first sealing flange and lip ring, wherein described first Sealing flange is equipped at least one first perforation, and the lip ring is correspondingly connected at first perforation, described Lip ring is equipped with deformation cavity, is equipped with sealing on the inside of the deformation cavity sidewalls, the sealing and is inserted into it Operation instrument formed contact sealing.

2. contact sealing structure according to claim 1, which is characterized in that the lip ring include ring lining and The axis of hermetically sealed case, side wall towards the lip ring of the ring lining is recessed, and the hermetically sealed case integrally entangles described Ring lining, the sunk area of the ring lining and the hermetically sealed case hermetically surround the deformation cavity.

3. contact sealing structure according to claim 2, which is characterized in that further include being set to the lip ring bottom Second sealing flange in portion, the ring lining are integrally connected between first sealing flange and the second sealing flange, institute State hermetically sealed case be set between first sealing flange and the second sealing flange, second sealing flange be equipped with it is described First inlet channel of deformation cavity connection.

4. contact sealing structure according to claim 2 or 3, which is characterized in that the ring lining includes described in The inclined upper inclined wall of lip ring axis deviates from the inclined lower inclined wall of the lip ring axis, the sealing It is arranged between the upper inclined wall and lower inclined wall.

5. contact sealing structure according to claim 2 or 3, which is characterized in that the side wall of the ring lining is towards annular The arc-shaped recess of the axis of sealing element.

6. contact sealing structure according to claim 1, which is characterized in that the lip ring is annular air-pocket, institute State the inside that the annular air-pocket is arranged in sealing.

7. contact sealing structure according to claim 6, which is characterized in that the annular air-pocket is logical equipped with the second air inlet Road.

8. a kind of seal assembly, which is characterized in that including lower case, the upper cover that is located on the upper opening of the lower case of lid with And contact sealing structure as described in any one of claim 1 to 7, wherein the contact sealing structure is set in the upper cover, The upper cover is respectively provided with a third perforation in position corresponding with each first perforation.

9. seal assembly according to claim 8, which is characterized in that further include being set to the intracorporal anti-return of the lower casing Sealing structure, the anti-return sealing structure are located at the underface of the lip ring.

10. seal assembly according to claim 9, which is characterized in that the anti-return sealing structure includes at least two panels The flexible sealing fin tilted down to the anti-return sealing structure axis direction, the position of adjacent two panels flexible sealing fin docking It sets to be formed with and at least seals seam together.

11. seal assembly according to claim 10, which is characterized in that it is described sealing seam constitute shape be " one " word, " ten " word or " Y " word.

12. seal assembly according to claim 9, which is characterized in that the anti-return sealing structure include magnetic part and Closed pore part, the center of the magnetic part are equipped with the third perforation that axis is overlapped with the axis of the lip ring, the closed pore Part, which is adsorbed, seals up the third perforation.

13. a kind of stamp card, which is characterized in that including stamp card pipe and such as the described in any item seal assemblies of claim 8 to 12, institute The lower part for stating lower case is equipped with mounting hole, and the upper end of the stamp card pipe is plugged in the mounting hole.