CN109549691A

CN109549691A - Sealing element and puncture outfit for puncture outfit

Info

Publication number: CN109549691A
Application number: CN201811389007.1A
Authority: CN
Inventors: 孙宝峰; 马占虎; 戴霞红
Original assignee: Jiangsu Fengh Medical Equipment Co Ltd
Current assignee: Jiangsu Fengh Medical Equipment Co Ltd
Priority date: 2018-09-29
Filing date: 2018-11-20
Publication date: 2019-04-02
Also published as: CN111544094A

Abstract

The present invention provides a kind of sealing element for puncture outfit, and puncture outfit includes venting channels, which is characterized in that sealing element has first state and the second state；When sealing element is in first state, sealing element is at least partly placed in venting channels and sealing element sealing ventilation channel；When sealing element is in the second state, sealing element releases the sealing for venting channels, and gas can enter puncture outfit by venting channels.In the unassembled gas injection valve of puncture outfit, for sealing element due to sealing to venting channels, puncture outfit can guarantee the leakproofness of itself；When needing to carry out gas injection to puncture outfit, gas injection system is assembled, sealing element is become into the second state from first state, the gas of gas injection system is made to enter puncture outfit by venting channels, so as to carry out gas injection to abdominal cavity.In the surgical procedure using multiple puncture outfits, best gas injection position can be selected, gas injection system is installed to puncture outfit in this position, carries out gas injection, saves the stability of pneumoperitoneum when resource maintains operation simultaneously.

Description

Sealing element and puncture outfit for puncture outfit

Technical field

The present invention relates to a kind of surgical instruments to belong to more particularly to a kind of sealing element and puncture outfit for puncture outfit Area of medical devices.

Background technique

Puncture outfit is a kind of for establishing the surgical instrument for entering abdominal cavity channel, including puncture core and puncture cannula.Having In the surgical procedure of body, doctor is general first to open an osculum in the abdomen of patient, and the puncture core of puncture outfit is then directed at small cut It moves down while mouth reciprocating rotation, so that one end of puncture cannula be driven to enter the abdominal cavity of patient, completes after puncturing, Core will be punctured to extract from puncture cannula, puncture cannula forms the channel of other surgical instruments disengaging.In order to expand the sky in abdominal cavity Between, increase the distance between each tissue, so that the progress of operation is more conducive to, after the completion of puncture, it usually needs cover by puncturing Gas is injected in the channel that pipe is formed into abdominal cavity, therefore needs that a gas injection valve is arranged on puncture cannula, after gas injection, The gas injection valve is closed, and makes to form sealing inside puncture cannula, to guarantee the stability of pneumoperitoneum, doctor is facilitated to perform the operation.

During operation, it usually needs to the multiple puncture outfits of intraperitoneal insertion, on existing puncture outfit, each puncture One and the integrally formed gas injection valve of puncture outfit are each equipped on device, the two is inseparable, and specifically, the casing storehouse of puncture outfit is set The ventilation device being connected to in casing storehouse have been set, there are venting channels in ventilation device, gas injection valve and ventilation device are integrally formed, To unremovably be fixed on the side in casing storehouse, when needing to perform the operation, only need to open gas injection valve can gas injection.But actual operation When only need to be by a puncture outfit gas injection, therefore gas injection valve on other puncture outfits causes the waste of resource, cost The problem of increasing and occupying operative space in the course of surgery.Also, with increasing for quantity, a possibility that infusing Valve leakage Also increase, and infuse Valve leakage and will affect the stability of pneumoperitoneum.To solve the above-mentioned problems, can by puncture outfit gas injection valve with Puncture outfit it is separately positioned but still retain puncture outfit can be by the structure and performance of gas injection system gas injection, when needing to carry out to puncture outfit When gas injection, gas injection system is mounted on the puncture outfit needed with inflation, to carry out gas injection to the puncture outfit.But it is this to wear Before thorn device does not install gas injection system, in order to guarantee the leakproofness inside puncture outfit, the venting channels of puncture outfit need to be sealed, And there are no the puncture outfits for not configuring gas injection valve in the prior art, also not to the related art scheme of vents seal.

Summary of the invention

In view of the deficiencies of the prior art, the present invention is intended to provide it is a kind of for sealing the sealing element of the venting channels of puncture outfit And puncture outfit, solve in the prior art that there are no the puncture outfits for not configuring gas injection valve, it is also unreal to puncture outfit venting channels The technical solution of existing effect sealing, the problem of to guarantee air-tightness inside puncture outfit.

The invention is realized by the following technical scheme: a kind of sealing element for puncture outfit, and the puncture outfit includes ventilation Channel, the sealing element have first state and the second state；When the sealing element is in first state, the sealing element is at least Part is placed in the venting channels and the sealing element seals the venting channels；The sealing element is in the second state When, the sealing element releases the sealing for the venting channels, and gas can enter the puncture outfit by the venting channels.

Preferably, the puncture outfit injects gas from gas injection system to it；The gas injection system makes the sealing element Second state is transformed by first state.

Preferably, the gas injection system is outer to sealing element application in its connection procedure with the puncture outfit Power, so that the sealing element be made to be transformed into the second state by first state.

Preferably, the sealing element is reversibly converted between the first state and second state.

Preferably, the sealing element is at least partly made of elastic material；The puncture outfit is infused from gas injection system to it Enter gas, the gas injection system and the puncture outfit are detachably connected.

Preferably, the sealing element includes sealing block and elastic component, one end of the elastic component is fixed on the ventilation In channel, the other end of the elastic component is connect with the sealing block.

Preferably, the sealing element includes seal, the seal is set in the venting channels, the sealing Body includes multiple sealing flaps, and the multiple sealing flap mutually abuts.

Preferably, the sealing element includes seal, the seal is set in the venting channels, the sealing Body includes multiple sealing flaps, and the multiple sealing flap partly overlaps.

Preferably, the sealing element is irreversibly transformed into second state from the first state.

Preferably, the sealing element includes sealing film, the sealing film is set in the venting channels and described The periphery of sealing film is mutually fixed with the venting channels.

Preferably, the puncture outfit injects gas from gas injection system to it；The gas injection system is in itself and the puncture External force is applied to the sealing element in the connection procedure of device, so that the sealing element be made to be transformed into the second state by first state； The gas injection system is unremovably connect with puncture outfit formation.

Preferably, the sealing element is at least partly made of elastic material.

Preferably, the sealing element includes locating piece and the cock body that connect with the locating piece, the locating piece is fixed In the puncture outfit, at least part of the cock body is removably set in the venting channels of the puncture outfit, with right The venting channels realize selectivity sealing；The gas injection system applies the external force to the cock body, removes the cock body The venting channels.

Preferably, the cock body is connect with the locating piece by connecting rod.

Preferably, the cock body is cylindrical body or the truncated cone；Alternatively, the cock body includes front end face and side, it is described Chamfering is formed between front end face and the side；Alternatively, the cock body includes front end face, the front end face of the cock body be inclined-plane, Cambered surface or tapered surface.

The present invention also provides a kind of puncture outfit, including casing storehouse, described sleeve pipe storehouse includes ventilation device and as described above Sealing element, the ventilation device include the venting channels, the inner cavity in venting channels connection described sleeve pipe storehouse, the sealing Part is at least partially arranged in the venting channels；The ventilation device includes the ventilation that perforation is set to the wall in described sleeve pipe storehouse Mouthful, the venting channels are formed in the blow vent.

Preferably, the blow vent includes inner and outer wall, inner opening is formed on the inner wall, is formed on the outer wall Outward opening, the internal diameter of the inner opening are less than the internal diameter of the outward opening, form accommodating space, institute between the inner wall and outer wall It states accommodating space to be connected to the venting channels, the sealing element is at least partially arranged in the accommodating space.

Preferably, the ventilation device further comprises snorkel, one end of the snorkel is set to the ventilation The other end of the outer wall in the described sleeve pipe storehouse of mouth position, the snorkel extends along the direction far from described sleeve pipe storehouse；Institute The channel that venting channels include the channel being formed in the blow vent He are formed in the snorkel is stated, is formed in described logical Channel in port is connected to the channel being formed in the snorkel.

Preferably, being provided with slot or convex block on the outer wall of the snorkel.

Preferably, the axial direction in the snorkel along the snorkel is disposed with the first stopper section and second and stops Stopper, the venting channels include the channel formed through first stopper section and are formed through second stopper section logical Road；The sealing element is at least partially disposed between first stopper section and the second stopper section.

Compared with prior art, the beneficial effects of the present invention are: it is logical provided by the present invention for the ventilation for sealing puncture outfit The sealing element and puncture outfit in road, in the unassembled gas injection system of puncture outfit, sealing element is due to sealing venting channels, so that puncturing Device can guarantee the leakproofness of itself；When needing to carry out gas injection to puncture outfit, gas injection system is assembled, by sealing element by above-mentioned First state is transformed into the second state, so that the gas of gas injection system enters puncture outfit by venting channels, so as to abdominal cavity Carry out gas injection.In the surgical procedure using multiple puncture outfits, gas injection system can be installed to the puncture outfit that there is inflation to need, Gas injection is carried out, the stability of pneumoperitoneum when resource maintains operation simultaneously is saved.

Detailed description of the invention

Fig. 1 is the puncture outfit cross-sectional view of the first sealing element in the embodiment of the present invention one with one form of them；

Fig. 2 is the first cock body structural schematic diagram in the embodiment of the present invention one；

Fig. 3 is second of cock body structural schematic diagram in the embodiment of the present invention one；

Fig. 4 is the third cock body structural schematic diagram in the embodiment of the present invention one；

Fig. 5 is the 4th kind of cock body structural schematic diagram in the embodiment of the present invention one；

Fig. 6 and Fig. 7 is the first seal configuration schematic diagram of one one form of them of the embodiment of the present invention；

Fig. 8 is the first another form of sealing element and seal fit structure schematic diagram in the embodiment of the present invention one；

Fig. 9 is sealed body structure schematic diagram in Fig. 8；

Figure 10 is seal configuration schematic diagram in Fig. 8；

Figure 11 is the puncture outfit structural schematic diagram in the embodiment of the present invention one with another form of sealing element；

Figure 12 is structural schematic diagram when puncture outfit is equipped with gas injection valve in Figure 11；

Figure 13 is enlarged drawing at A in Figure 12；

Figure 14 is second of sealing element the first viewing angle constructions schematic diagram in the embodiment of the present invention one；

Figure 15 is second of sealing element the second viewing angle constructions schematic diagram in the embodiment of the present invention one；

Figure 16 is gas injection valve arrangement schematic diagram in Figure 12；

Figure 17 is the local structural graph that the puncture outfit of gas injection system is installed in the embodiment of the present invention two；

Figure 18 is enlarged drawing at B in Figure 17；

Figure 19 is the cross-sectional view of Figure 17；

Figure 20 is seal configuration schematic diagram in Figure 17；

Figure 21 is the gas injection valve arrangement schematic diagram of Figure 17；

Figure 22 is the partial sectional view that the puncture outfit of gas injection system is installed in the embodiment of the present invention three；

Figure 23 is enlarged drawing at C in Figure 22；

Figure 24 is puncture outfit partial sectional view in Figure 22；

Figure 25 is the gas injection valve arrangement schematic diagram of Figure 22；

Figure 26 is the partial structural diagram that the puncture outfit of gas injection system is equipped in the embodiment of the present invention four；

Figure 27 is gas injection valve arrangement schematic diagram in the present embodiment；

Figure 28 is the snorkel cross-sectional view in the present embodiment with the first sealing element；

Figure 29 is cross-sectional view when gas injection part is to the first sealing element application external force in the present embodiment；

Figure 30 is the snorkel cross-sectional view in the present embodiment with second of sealing element；

Figure 31 is cross-sectional view when gas injection part is to second of sealing element application external force in the present embodiment；

Figure 32 is the snorkel cross-sectional view in the present embodiment with the third sealing element；

Figure 33 is the puncture outfit partial sectional view in the present embodiment with the third sealing element；

Figure 34 is Figure 26 Center Vent tube right view；

Figure 35 is the cross-sectional view of Figure 26.

Appended drawing reference

In Fig. 1~Figure 16:

10, gas injection valve；11, valve body；111, gas injection part；A1, engaging valve；A2, clamping block；

20, blow vent；21, inner opening；22, outward opening；23, venting channels；

30, sealing element；31, cock body；31a, front end face；31b, rear end face；31c, chamfering；32, locating piece；321, skirt is positioned Side；321a, the first edge；321b, the second edge；322, connecting rod；322a, the first bar portion；322b, the second bar portion；

40, casing storehouse；41, step；

50, seal；51, the first seal；52, the second seal；

60, fastener；70, casing cover.

In Figure 17~Figure 21: 10, gas injection valve；11, valve body；111, gas injection part；112, accommodating member；113, interconnecting piece；1131, Link slot；1132, raised；1133, engage region；114, tip；

20, snorkel；21, seal washer；22, fixture block；

30, sealing element；31, sealing ring；32, seal；

40, casing storehouse；

In Figure 22~Figure 25:

10, gas injection valve；11, valve body；111, gas injection part；1111, plug division；

20, blow vent；21, inner opening；22, outward opening；23, container；

30, sealing element；31, spring；32, sealing block；

40, casing storehouse；

In Figure 26~Figure 35:

10, gas injection valve；11, gas injection part；111, outlet side；112, venthole；113, interconnecting piece；1131, link slot； 1132, raised；1133, engage region；

20, snorkel；21, the first ventilation part；22, fixture block；23, the second ventilation part；24, the first stopper section；25, second stops Stopper；26, third stopper section；27, the first sealing ring；

30, sealing element；31, sealing block；32, elastic component；311, block body is sealed；312, raised line；313, airspace； 3111, the second sealing ring；

40, casing storehouse.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Term " first ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technology The quantity of feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy Sign.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise clearly specific It limits.

The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to be used to explain the present invention, and cannot understand For limitation of the present invention.

The present invention provides a kind of sealing element for sealing the venting channels of puncture outfit and the puncture with this kind of sealing element Device.Sealing element has first state and the second state, and when the sealing element is in first state, the sealing element sealing is described logical Gas channel；When the sealing element is in the second state, the sealing element releases the sealing for the venting channels, and gas can lead to The venting channels are crossed into the puncture outfit.Above-mentioned puncture outfit is by forming connection relationship with gas injection system, so that gas injection system System applies external force to sealing element, so that sealing element be made to be changed into the second state from first state.

Specifically, when original state, that is, when sealing element is in first state, puncture outfit is to separate with gas injection system , that is to say, that puncture outfit and gas injection system are two components independent, and respectively can also independently be used；In needs pair When puncture outfit carries out gas injection, the gas injection system that installation matches with ventilation device, the two, which is used in conjunction with each other, can make to bring about the desired sensation Body is entered inside puncture outfit by gas injection system, i.e., when the gas injection system to match with the ventilation device is mounted on ventilation device When upper, sealing element relieves the sealing to venting channels under the effect of external force, so that the second state is changed by first state, Gas can be from gas injection system sleeve pipe storehouse inner cavity.

In the present invention, gas injection system includes gas injection valve, and gas injection valve includes gas injection part, is carried out between gas injection part and ventilation device Connection, gas injection part inside form gas injection channel and are mounted with to infuse on ventilation device in other words when gas injection valve is connect with ventilation device When air valve, gas injection channel is connected to venting channels, is able to carry out gas injection.

In the initial state, when puncture outfit is not passed through gas also, the state of both puncture outfit and gas injection valve are separation, when needing When being passed through gas in puncture outfit, gas injection valve is assemblied in the place corresponding with ventilation device on puncture outfit, so that gas injection valve It is connected with venting channels, so as to be passed through gas into venting channels by gas injection valve.

In the present invention, ventilation device includes the blow vent that the side wall in casing storehouse opens up, and along far from puncture outfit side To the snorkel extended to form.

In the present invention, sealing element has following a few class situations when state changes:

First kind situation: sealing element is irreversibly transformed into the second state by first state, such situation is divided into two kinds again Situation:

The first situation is unremovably connected due to foring between puncture outfit and gas injection valve, and the two is protected always from this The relationship being fixedly connected is held, so that sealing element can not revert to first state from the second state；

Second situation is to be destroyed due to sealing element by gas injection valve, so that even if sealing after puncture outfit and the disassembly of gas injection valve Part also can not revert to first state from the second state.

Second class situation: sealing element can change back and forth between the first state and a second state, that is to say, that sealing element can Inverse ground is changed into the second state from first state.In this case, sealing element reverts to first state by the second state and needs completely Two conditions of foot: sealing element is not destroyed by gas injection valve；Gas injection valve and puncture outfit formation are detachably connected.When sealing element is from the first shape It after state is changed into the second state, is not destroyed still, and after gas injection valve and puncture outfit disassembly, performance of the sealing element due to itself And/or by under external force, venting channels can be resealed, first state is reverted to.

The puncture outfit structure of the sealing element with above-mentioned a few class situations is divided into four embodiments below, wherein embodiment one The first situation in corresponding first kind situation, embodiment two correspond to the second situation in first kind situation, three He of embodiment Example IV corresponds to the second class situation.

Embodiment one

Fig. 1 is please referred to, puncture outfit includes casing storehouse 40, and described sleeve pipe storehouse 40 includes blow vent 20, and the blow vent 20 passes through Lead to the wall in described sleeve pipe storehouse 40 and be arranged, the inner wall of blow vent 20 forms setting venting channels 23；Sealing element 30 includes locating piece 32 and the cock body 31 that is connect with the locating piece 32, locating piece 32 be fixed in described sleeve pipe storehouse 40, the cock body 31 at least portion Set up separately and set in the blow vent 20 of the puncture outfit, is sealed with being realized to blow vent 20.

It should be noted that in order to more clearly describe the structure of the sealing element 30 of puncture outfit, referring to Fig. 5, what "upper" referred to It is direction straight up along paper, "lower" refers to that, along paper vertically downward direction, "inner" is referred to along locating piece 32 radial direction and towards the direction of 32 central axis of locating piece, "outside" refers to the radial and remotely located part along locating piece 32 The definition in the direction of 32 central axises, "upper", "lower", "inner", "outside" is suitable for all components of sealing member for puncture outfit and puncture outfit.

The shape of cock body 31 and the shape of puncture outfit blow vent 20 are mutually matched.In this embodiment, cooperation puncture outfit is logical The shape of port 20, cock body 31 use cylindrical body.The top and bottom of cylinder type cock body 31 are respectively its front end face 31a with after End face 31b.

Enter in blow vent 20 in order to facilitate cock body 31, reduce assembly difficulty, the present invention lists the shape of four kinds of cock bodys 31 Formula.

The first cock body 31:

As shown in Fig. 2, the side of the front end face 31a of cock body 31 and cylinder type cock body 31 forms chamfering 31c, also, fill in The diameter of 31 front end face 31a of body is less than corresponding 20 internal diameter of puncture outfit blow vent, and the diameter of 31 rear end face 31b of cock body, which is greater than, to be corresponded to 20 internal diameter of puncture outfit blow vent.The part of 31 adjacent front end face 31a of cock body is front end portion, 31 adjacent back end face 31b of cock body Part be rear end part.The outer diameter of 31 rear end part of diameter, that is, cock body of 31 rear end face 31b of cock body.Above-mentioned definition is suitable for the One kind is to the 4th kind of cock body 31, for the first to the 4th kind of cock body 31, diameter, that is, cylindrical body outer diameter of rear end face 31b.Plug Body 31 is when entering corresponding blow vent 20, logical conducive to the front end portion push-in of cock body 31 since its front end face 31a diameter is smaller In port 20, then enter the rear end part of cock body 31 also in blow vent 20 along chamfering 31c.31 rear end face 31b's of cock body is straight Diameter is larger, seals conducive to cock body 31 and blow vent 20 is formed.

Second of cock body 31:

As shown in figure 3, the front end face 31a of cock body 31 is in cambered surface, the diameter of 31 rear end face 31b of cock body is greater than corresponding puncture The part front end face 31a of cock body 31 is pushed into puncture outfit blow vent 20 by 20 internal diameter of device blow vent first, then along front end face 31a Arcwall face, make the front end face 31a of cock body 31 completely into blow vent 20, and under the elastic shrinkage of cock body 31, cock body 31 Rear end part also enter in blow vent 20.31 rear end face 31b's of cock body is relatively large in diameter, conducive to cock body 31 and 20 shape of blow vent is made At sealing.

The third cock body 31:

As shown in figure 4, the front end face 31a of cock body 31 is in inclined-plane, the diameter of 31 rear end face 31b of cock body is greater than corresponding puncture 20 internal diameter of device blow vent.The cock body 31 from upper end end slope downwards is shown in Fig. 3, can also be other inclinations certainly Mode.Enter the top of cock body 31 in blow vent 20, then pushes cock body 31 into blow vent 20, by squeezing upwards The lower part of tamponade body 31, so that the lower part of cock body 31 also enters in blow vent 20, so that it is close to form cock body 31 to blow vent 20 Envelope.

After cock body 31, which is opened, leaves blow vent 20, since the thickness of its underpart is less than the thickness on top, is formed and stepped down Design, therefore the circulation of gas in gas injection process will not be interfered.

4th kind of cock body 31:

As shown in figure 5, the front end face 31a of cock body 31 is taper, the diameter of 31 rear end face 31b of cock body is greater than corresponding puncture 20 internal diameter of device blow vent.The sharp protrusion formed on 31 front end face 31a of cock body is pushed into puncture outfit blow vent 20 first, then Along the tapered surface of front end face 31a the rear end part of cock body 31 is also entered in blow vent 20.The diameter of 31 rear end face 31b of cock body It is larger, it is sealed conducive to cock body 31 and blow vent 20 is formed.

The front end face 31a of above-mentioned four kinds of cock bodys 31 is in cambered surface, inclined-plane or taper, plays guiding in assembling, thus Cock body 31 is able to guide to be assembled into blow vent 20.

The present embodiment specifically lists above-mentioned four kinds of cock bodys 31, but it is understood that, sealing member for puncture outfit 30 of the present invention In cock body 31 be not limited to above-mentioned four kinds of forms, the cock body 31 of other structures form, such as cock body 31 can also be used The truncated cone can be used.

Locating piece 32, connecting rod 322 and cock body 31 in the present embodiment are integrally formed, production process fast and easy.Sealing Part 30 is whole to be made of elastic material.Elastic material is specifically as follows the materials such as natural rubber, silica gel, isoprene rubber.It is based on Research to the hardness and intensity of a variety of materials, the present invention in the preferred isoprene material of sealing member for puncture outfit 30 be made. Since connecting rod 322 and cock body 31 are integrally formed, rear end face 31b is the technical characteristic for describing and limiting for convenience, i.e. cock body Interface between 31 and connecting rod 322, as shown in dotted line 31b in Fig. 2-5.

As shown in Fig. 6~11, cock body 31 is connect with locating piece 32 by connecting rod 322, the structure of connecting rod 322 and locating piece 32 There are many, the connection type of the seal 50 in locating piece 32 and puncture outfit also there are many, the present invention according to locating piece 32 with it is close Whether envelope body 50, which connects, provides two kinds of sealing elements 30, makees the description distinguished below:

The first sealing element 30

In this kind of sealing element 30, locating piece 32 and seal 50 are the individual components being separated from each other.

Fig. 6 to Figure 10 is please referred to, locating piece 32 is in circular ring shape, and has certain annular width, is conducive in casing storehouse 40 Middle positioning.The locating piece 32 of circular ring shape is arranged in casing storehouse 40 to be more convenient, while the company with other components in casing storehouse 40 Connect closer, position is also more firm.Certainly, the locating piece 32 in the present invention can also be other shapes, such as can also be fan Ring is connect as long as meeting with the close of other components in casing storehouse 40.

This kind of sealing element 30 is different from the connection structure of locating piece 32 according to connecting rod 322, and sealing element 30 is divided to for two kinds of shapes Formula:

The first sealing element 30 of one form of them

Please refer to Fig. 6 and Fig. 7, connecting rod 322 includes the first bar portion 322a and the second bar portion 322b, and the first bar portion 322a is located at One end of second bar portion 322b.Locating piece 32, the first bar portion 322a, the second bar portion 322b and cock body 31 are sequentially connected, the first bar Portion 322a is connected on the bottom surface of locating piece 32.The area of section of first bar portion 322a is greater than the section face of the second bar portion 322b Product, to increase the joint face between connecting rod 322 and locating piece 32, so that the connection reinforced between connecting rod 322 and locating piece 32 is strong Degree, section here refers to the face parallel with the top surface of locating piece 32.At an acute angle or right angle between connecting rod 322 and locating piece 32 Setting.

Fig. 1 shows the puncture outfit of the sealing element 30 with above-mentioned form, accommodates in the inner cavity in the casing storehouse 40 of puncture outfit There are seal 50, fastener 60 and above-mentioned sealing element 30.Due on the locating piece 32 in above-mentioned sealing element 30 connecting rod 322 with Locating piece 32 is due to angled setting, and in the initial state, the interference fit of cock body 31 seals blow vent 20 with blow vent 20, And after cock body 31 is opened by gas injection system or gas injection valve, due to the pulling force and gravity of connecting rod 322, cock body 31 is still located at 23 oral area of venting channels.Seal 50 includes the first seal 51 and the second seal 52, for opening on casing storehouse 40 Mouth selectivity sealing.The center of locating piece 32, fastener 60, the second seal 52 and the equal annular sleeve storehouse 40 of the first seal 51 Axis, and be successively stacked from top to bottom.Specifically, the outside of the first seal 51, the second seal 52 and fastener 60 is equal In circular ring shape, which is referred to as the outer of the outer ring of the first seal 51, the outer ring of the second seal 52 and fastener 60 Ring.The top in casing storehouse 40 is provided with casing cover 70, and step 41, and the face edge of step 41 are formed on the inner wall in casing storehouse 40 It radially extends, is formed by region in the face of step 41 and casing cover 70, it is locating piece 32, the outer ring of fastener 60, second close Seal the outer ring successively tightly stacked setting from top to bottom of the outer ring and the first seal 51 of body 52.First seal 51, second Seal 52 and locating piece 32 are that elastic material is made.Fastener 60 is plastic part, for forming fixed connect with casing cover 70 It connects.This kind of set-up mode not only takes full advantage of the intracavity space in casing storehouse 40, so that each component in casing storehouse 40 is all connected with Closely, position is fixed, and does not change the structure of seal 50 and fastener 60 in existing puncture outfit.Puncture outfit in the present invention Working method and existing puncture outfit it is also consistent, be more convenient go into operation and use.

Another form of first seal 30

Fig. 8~10 are please referred to, in the first seal 30 of this kind of form, locating piece 32 is an annulus column, along axial direction Height is greater than thickness radially, and cock body 31 is connected to the medial surface of locating piece 32 by connecting rod 322.Locating piece 32 and second close Envelope body 52 remains as the individual components being separated from each other.As shown in Figure 10, connecting rod 322 is not when stressing state, along locating piece 32 It radially extends, cock body 31 is set to the end of connecting rod 322.When in use, such as Figure 10, by 52 sets of the second seal of seal 50 Enter in locating piece 32 to realize fixation between the two when sealing element 30 is in the second state namely cock body 31 from venting channels When removing in 23, due to the blocking of the second seal 52, connecting rod 322 can not also resile, be in bending state, cock body 31 Between 23 oral area of venting channels and the outer wall of the second seal 50.But since connecting rod 322 is made of elastic material, according to itself Elastic reaction, cock body 31 is close to the outer wall of the second seal 52, to will not generate to the gas that is passed through in venting channels 23 Stop.

Figure 11 is please referred into Figure 13, in the puncture outfit of the first sealing element 30 with above-mentioned form, puncture outfit includes Casing storehouse 40, seal 50 is equally arranged in casing storehouse 40, and seal 50 equally also includes the first sealing arranged from top to bottom Body (being not shown in Figure 11) and the second seal 52.Blow vent 20 is provided on casing storehouse 40, the inner wall of blow vent 20 forms logical Gas channel 23.In the initial state, 322 bending deformation of connecting rod, cock body 31, which is filled in venting channels 23, makes venting channels 23 close Envelope；After the gas injection valve in gas injection system protrudes into venting channels 23 to open cock body 31, cock body 31 is due to by the second seal 52 outer wall stops, and connecting rod 322 still can not resile, so that cock body 31 is still tightly attached to the outer wall of the second seal 52.

Using above two the first sealing element 30 being separated from each other with seal 50, be in order to prevent cock body 31 fill in it is logical When in gas channel 23, connecting rod 322 is pullled, so that the seal 50 connecting with connecting rod 322 deforms, casing storehouse 40 is caused to leak Gas.

Second of sealing element 30

Please refer to Figure 14~15, in second of sealing element 30, locating piece 32 includes positioning skirt 321, in casing storehouse 40 also It is provided with seal 50.Seal 50 includes the first seal (being not shown in Figure 14~Figure 15) and the second seal from top to bottom 52, the first seal and the second seal 52 cooperate, and respectively play a role, close to realizing in the casing storehouse 40 of puncture outfit Envelope.In the present embodiment, the first seal and the second seal 52 are not connected with each other, and can make the first seal or in this way The deformation of two seals 52, will not influence the deformation of the second seal 52 or the first seal, to avoid that gas leakage occurs.Cooperation The form in puncture outfit casing tube storehouse in the prior art, the top of the second seal 52 in seal 50 are in circular ring shape, position skirt 321 central axises for surrounding the second seal 52 are arranged on the outer wall on 52 top of the second seal.Exist in order to facilitate locating piece 32 Accommodating and positioning in casing storehouse 40, the upper surface of the second seal 52 protrude from positioning skirt 321.Second in the present invention is close Envelope body 52 is not limited to used form, can be multi-petal shape or Duckbill type etc..

Positioning skirt 321 is in flange shape, i.e., positioning skirt 321 includes the first edge 321a and the second edge 321b.First Edge 321a is radially extended along the second seal 52, and outer edge of the second edge 321b in the first edge 321a is sealed along second Body 52 extends axially downward.The positioning skirt 321 of flange shape is further conducive to locating piece 32 and installs and determine in casing storehouse 40 Position.

Connecting rod 322 includes that the first bar portion 322a and the second bar portion 322b, the first bar portion 322a is located at the second bar portion 322b's One end.Locating piece 32, the first bar portion 322a, the second bar portion 322b and cock body 31 are sequentially connected.First bar portion 322a is connected to fixed On the positioning skirt 321 of position part 32, connecting rod 322 and cock body 31 are not directly connected to the second seal 52, to avoid connecting rod 322 And cock body 31 influences the second seal 52 to the sealing effect in casing storehouse 40.The area of section of first bar portion 322a is greater than second The area of section of bar portion 322b, with increase connecting rod 322 and position skirt 321 between joint face, section here refer to The parallel face in 32 top surface of locating piece.

Certainly, the second seal 52 in the present invention and positioning skirt 321 can be integrally formed be also possible to mutually Connection, connection type can be welding, bonding etc..

The cock body 31 in sealing element 30 in the present embodiment is at least partially disposed in blow vent 20, to venting channels 23 Form sealing.Since cock body 31 is made of elastic material, cock body 31 has certain decrement, therefore can make cock body 31 and lead to Gas channel 23 forms interference fit, so as to form preferable sealing to venting channels 23.Preferably, cock body 31 and venting channels 23 magnitude of interference is 0.8~1.2mm, has not only facilitated cock body 31 to be pushed into venting channels 23, but also can guarantee inside venting channels 23 Air-tightness.

For cock body 31 and venting channels 23, " selectivity sealing " refers to 31 sealing ventilation channel 23 of cock body and cock body 31 Release the sealing for venting channels 23.

Puncture outfit of the present invention is in use, and original state is that cock body 31 seals up the venting channels 23 on corresponding puncture outfit, Sealing element 30 is in first state at this time.It, can be by the way that gas injection valve be inserted for some or the certain puncture outfits for needing gas injection Enter in venting channels 23, to open cock body 31, by making gas by venting channels 23 along puncture outfit casing tube to 10 gas transmission of gas injection valve Into abdominal cavity, the cock body 31 of sealing element 30 removes venting channels 23 due to being opened by gas injection valve 10 at this time, makes sealing element 30 Second state is changed by first state.Cock body 31 is connected on locating piece 32 by connecting rod 322, when such gas injection, cock body 31 After being opened by gas injection valve 10, be detached from blow vent, cock body 31, which is not fallen out, to be blocked casing or falls into human abdominal cavity, does not influence to wear Pierce the normal work of device.

To puncture outfit in this present embodiment, cock body 31 releases the sealing for venting channels 23 under the effect of external force, To make sealing element 30 irreversibly be transformed into the second state from first state.When the external force refers to installation gas injection system, note Gas system has the part for protruding into venting channels 23, which gives cock body 31 external force, so that cock body 31 is relative to venting channels 23 is mobile, and cock body 31 is finally made to remove venting channels 23.When sealing element 30 is transformed into the second state, 10 part of gas injection valve is stretched Enter venting channels 23, later, entire gas injection system is fixedly connected with puncture outfit, can not be separated again, so that 30 nothing of sealing element Method reverts to first state from the second state.

Specifically, Figure 12 and Figure 16 are please referred to, gas injection system provided in this embodiment includes gas injection valve 10, in gas injection valve 10 Including valve body 11, valve body 11 includes the gas injection part 111 for being provided with gas passage, protrudes into blow vent 20 by one end of gas injection part 111 It is interior.

In such mounting structure, after puncture outfit is mounted gas injection valve 10, the gas injection part 111 of blow vent 20 and gas injection valve 10 is solid Fixed connection, is fixedly connected and refers to, can not separate to form independent individual after blow vent 20 and the connection of gas injection part 111.

In the present embodiment, preferably 111 outer wall of gas injection part is fixedly connected with the inner wall of blow vent 20, and further preferably two Person is connected together.

When needing through a puncture outfit to when abdominal cavity gas injection, a part of gas injection valve 10 is inserted into the logical of the puncture outfit In port 20, gas injection operation is realized.In order to facilitate installation of the gas injection valve 10 in blow vent 20, referring to Figure 13, gas injection part 111 is stretched The part for entering blow vent 20 includes multiple engaging valve a1, and multiple engaging valve a1 are arranged around the central axis interval of gas injection part 111, often Clamping block a2 is provided on one end of a engaging valve a1, and each clamping block a2 protrudes from the outer wall of corresponding engaging valve a1.

Figure 14 is please referred to, when gas injection valve 10 to be fitted into blow vent 20, each engaging valve a1 is pressed first, makes each engaging Gap between valve a1 becomes smaller, and the size that one end of each engaging valve a1 where each clamping block a2 is formed by ring becomes smaller, engaging The outer diameter of the one end valve a1 is D1, is protruded into the entrance of blow vent 20 conducive to engaging valve a1.In the present embodiment, blow vent 20 has Outward opening 22 and inner opening 21, outward opening 22 are provided on the outer wall in casing storehouse 40, and inner opening 21 is provided with the interior of casing storehouse 40 On wall, formed between outward opening 22 and inner opening 21 in 23. blow vent 20 of venting channels inner opening 21 and outward opening 22 it Between wall at least partially inclined-plane, make blow vent 20 along outward opening 22 inwardly open 21 in shrink state.Push gas injection valve 10 Mobile to blow vent 20, the end of multiple engaging valve a1 constantly inwardly retracts into inner opening 21 along inclined-plane, multiple engaging valves The end of a1 and clamping block a2 then open cock body 31, and pass through the inner opening 21 of blow vent 20, the ring that engaging valve a1 is formed It becomes large-sized, the outer diameter of engaging one end valve a1 is D2, D1 < D2, is engaged around the outer wall of valve a1 and the inner opening 21 of blow vent 20 Wall formed abut.Gas injection valve 10 is pulled out, is abutted so that clamping block a2 is formed with 21 end face of inner opening of blow vent 20, i.e., Clamping block a2 is connected to the side wall of the end of blow vent 20.Gas injection valve 10 is mutually clamped with blow vent 20, completes gas injection valve 10 Installation.

Engage and form recess on valve a1, is provided with the part for being sticked in the recess in blow vent 20.(not shown) Specifically, recess is recessed from gas injection channel direction of the engaging surface valve a1 into gas injection part 111, is located at engaging valve a1 and is stretched Enter the part of blow vent 20, setting and the recess width (namely length axial along gas injection part 111) phase on blow vent 20 Matched bulge loop or convex block, when engaging valve a1 is fixed in blow vent 20, bulge loop or convex block are sticked in the recess, When gas injection part 111 moves in the axial direction, the two sidewalls of recess and the side wall of bulge loop or convex block are abutted each other, prevent gas injection part 111 move in the axial direction.Such structure can not only be continued to move to backstop gas injection part 111 to the inner cavity in casing storehouse 40, but also can be with Backstop gas injection part 111 is mobile to the direction far from casing storehouse 40.

In order to avoid the gap air leak between each engaging valve a1, the length of engaging valve a1 is less than the length of blow vent 20, when After gas injection valve 10 and blow vent 20 complete installation, engaging valve a1 should be able to be completely disposed in blow vent 20 and with opened in blow vent 20 Wall around mouth 21, which is formed, to abut.

By above structure, when gas injection part 111 is mounted in blow vent 20, due to being opened in clamping block a2 and blow vent 20 21 end faces of mouth, which are formed, to abut, when gas injection part 111 is mobile to the direction for withdrawing puncture outfit, the 21 end face meeting of inner opening of blow vent 20 Prevent gas injection part 111 mobile to the direction, so that gas injection part 111 can only be fixed in blow vent 20.

Embodiment two

Figure 17~Figure 21 is please referred to, the present embodiment provides a kind of puncture outfit, including casing storehouse 40, casing storehouse 40 includes perforation It is set to the snorkel 20 of its side wall, the inner wall of snorkel 20 forms venting channels.Snorkel 20 is internally provided with sealing element 30, Sealing element 30 blocks snorkel 20, so that forming sealing state in casing storehouse 40.

Specifically, in the present embodiment, snorkel 20 and gas injection part 111 are detachably connected.It is detachably connected to refer to, After snorkel 20 and gas injection part 111 connect, it can also mutually dismantle separation and form independent individual.

In the present embodiment, the outer wall of 111 outer wall of gas injection part and snorkel 20 is detachably connected, and dismantles 30 nothing of rear seal Method again blocks snorkel 20.

Referring to figure 2. 0, the sealing element 30 in casing storehouse 40 includes sealing ring 31 and seal 32, and sealing ring 31 is in Cylindrical body in at least partially embedded snorkel 20 of sealing ring 31, and is interference fitted with snorkel 20, avoids sealing ring 31 and ventilation Pipe 20 forms the occurrence of gas leakage is caused in gap.Be radially arranged in cylindric sealing ring 31 of the seal 32 along sealing ring 31 One end, with the anchor ring at 31 end of closing seam ring.Seal 32 can be bonding, welding etc. with the fastening means of sealing ring 31. Specifically, the seal 32 in the present embodiment is integrated sealing film, the area for sealing film is greater than the radial area of venting channels, Its center portion is located on a sagittal plane of venting channels, and rest part (namely sealing the periphery of film) and sealing ring 31 are solid It is fixed, to be fixed with venting channels；Either seal 32 is by multiple sealing flaps by abutting against or partly overlapping mode Formed, for example, seal 32 in the present embodiment be integrated sealing film, its with Y-shaped or " ten " font groove, either The Duckbill type to be formed is abutted against using multiple sealing flaps, or is four sealing flap parts for being more than or equal to 90 ° by central angle The sealing surface overlapped to form.The groove makes seal 32 move towards generation crack along groove under axial force effect.It is close The material of envelope body 32 can be rubber.

In addition, please referring to Figure 18 and 19, it is additionally provided with seal washer 21 in the end in the separate casing storehouse 40 of snorkel 20, Seal washer 21 is arranged around the central axis of snorkel 20, so that when gas injection valve 10 is mounted on snorkel 20, gasket The connecting place for enclosing 21 pairs of gas injection valves 10 and snorkel 20 can be sealed effectively, avoid gas leakage.

In above-mentioned sealing element 30, if seal 32 is integrated sealing film, when seal 32 is applied by gas injection valve 10 When external force, sealing film is corrupted such that be detachably connected even if gas injection valve and snorkel 20, but since sealing film has been destroyed, The function of sealing is lost, sealing element 30 can not revert to first state from the second state.If but seal 32 is multiple offsets The sealing flap of the formation Duckbill type connect is partly overlapped the sealing formed by central angle more than or equal to 90 ° of four sealing flaps Face, and sealing flap is made of elastic material, then after applying external force by gas injection valve 10, if gas injection valve 10 is dismantled from snorkel 20 Afterwards, above-mentioned sealing flap can also resile, and continuously form mutually abutting or partly overlapping structure, so that sealing element 30 is also First state can be reverted to from the second state.

Referring to figure 2. 1, the sealing element 30 of base in this present embodiment, one end of gas injection part 111 is tip 114, is conducive to gas injection Part 111 passes through seal 32 and is connected to snorkel 20.Tip 114 offers multiple through-holes, logical as the gas injection in gas injection part 111 The gas outlet in road.When gas injection valve 10 is mounted on snorkel 20, tip 114 is protruded into snorkel 20, and passes through seal 32, So that the gas injection channel in gas injection part 111 is connected to snorkel 20.

In the present embodiment, the outer wall of snorkel 20 and the outside of gas injection part 111 are detachably connected, and preferably the two card Close connection.

Specific structure are as follows: gas injection valve 10 includes at least a valve body 11, and valve body 11 includes at least the gas injection part 111, gas injection Interconnecting piece 113 is provided on part 111, interconnecting piece 113 is axially extending along gas injection part 111 and around gas injection part 111 and and gas injection The setting spaced apart radially of the outer wall of part 111, the distance are used to accommodate the wall of snorkel 20.By in snorkel Opened up on 20 outer wall slot perhaps open up on the wall of convex block interconnecting piece 113 convex block to match with above-mentioned slot or with it is above-mentioned convex The slot that block matches, when snorkel 20 is connected with gas injection valve 10, the outer wall of the wall cladding snorkel 20 of interconnecting piece 113, from And it is mutually clamped convex block and slot and forms the two and connect.

In the present embodiment preferably are as follows: interconnecting piece 113 is provided with link slot 1131 close to the one end in casing storehouse 40.In axial direction On, tip 114 can be located inside interconnecting piece 113, flush or expose interconnecting piece 113 with 113 outer edge of interconnecting piece.

Fixture block 22 has been provided projectingly on the outer wall of snorkel 20.The side wall of the perforation interconnecting piece 113 of link slot 1131.Connection Slot 1131 includes along the part of interconnecting piece 113 axially extending part and the circumferentially extending along interconnecting piece 113, two parts substantially shape L-shaped.The edge of circumferentially extending part is provided with protrusion 1132, as shown in figure 18.Preferably, being offered on interconnecting piece 113 Two link slots 1131, further, two link slots 1131 are spaced 180 °；Accordingly, it is provided on the outer wall of snorkel 20 Two fixture blocks 22.Gas injection part 111 is inserted into snorkel 20, fixture block 22 enters axially into link slot by the entrance of link slot 1131 1131, gas injection part 111 is rotated, fixture block 22 is circumferentially advanced and squeezed, crosses protrusion 1132 hence into link slot 1131 Engage in region 1133, gas injection valve 10 is installed with snorkel 20, and the side wall of protrusion 1132 and fixture block 22 abuts against thus will Fixture block 22 is locked at engaging region 1133, referring to Figure 18.Protrusion 1132 make the connection of gas injection valve 10 and snorkel 20 it is closer, It is more firm, avoid gas injection valve 10 from loosening or fall off from snorkel 20, simultaneously because gas injection valve 10 is closely connect with snorkel 20, It is avoided to be displaced to influence sealing between the two.

When disassembly is desired, rotary connector 113 or to protrusion 1132 force and simultaneously rotary connector 113 so that Fixture block 22, which leaves engaging region 1133, can be such that gas injection part 111 and snorkel 20 separates, and making gas injection valve 10 again becomes independent Individual.

Certainly, gas injection valve 10 is not limited to the above-mentioned mode engaged with the connection type of snorkel 20, can also be it His form.Such as the use elastic material of interconnecting piece 113 is made, the internal diameter of interconnecting piece 113 is consistent with the outer diameter of snorkel 20, as general When gas injection valve 10 is mounted on snorkel 20, interconnecting piece 113 is made to envelope snorkel by means of the elastic deformation of interconnecting piece 113 20 part makes the wall of snorkel 20 be fastened on interconnecting piece 113 and gas injection part by means of the elastic force of the generation of interconnecting piece 113 In the distance between 111.

The part of wall of snorkel 20 is placed in the interstitial spaces that gas injection part 111 and interconnecting piece 113 are formed, interconnecting piece 113 surround the outer wall of snorkel 20.Sky of the seal washer 21 between interconnecting piece 113 and gas injection part 111 on snorkel 20 It in gap, and is abutted with the outer wall of accommodating member 112, to make to form sealing between gas injection valve 10 and snorkel 20, avoids gas injection Gas leakage is generated between valve 10 and snorkel 20.

In the present embodiment, since the seal 32 of sealing element 30 is that integral type seals film, or is offseted by multiple sealing flaps It connects or partly overlaps to be formed.For integrated sealing film, after installing gas injection valve 10, tip 114 can destroy seal 32, sealing element 30 is irreversibly changed into the second state, therefore even if snorkel 20 and interconnecting piece 113, gas injection from first state After the mutually disassembly separation of part 111, it can not also maintain to seal again in casing storehouse 40, so that sealing element 30 again can not be from the second state Revert to first state.For seal 32 by multiple sealing flaps is abutted against or partly overlapped and formed, tip 114 is retracted Afterwards, multiple sealing flaps can be restored to abut or recovered part is overlapped, and therefore, sealing element 30 can also revert to first from the second state State can maintain to seal again in casing storehouse 40.

For the second class situation of sealing element 30, it should be and be detachably connected between puncture outfit and gas injection valve 10, and mutually tear open After unloading, sealing performance can be still maintained in casing storehouse 40 again, so that sealing element 30 reverts to first state from the second state.It is real Existing above-mentioned function, key are the structure of sealing element 30, the sealing that sealing element 30 preferably includes elastic component and connect with elastic component Perhaps the seal elastic component connects the ventilation device and the sealing block or seal to block, and the sealing block is radial The ventilation device is sealed up, when the ventilation device installs the gas injection system, the elastic component drives the sealing block Displacement, or drive elastic component to generate elastic deformation by seal, so that sealing element 30 is reversibly changed into the from first state Two-state；After the puncture outfit dismantles gas injection system, the elastic component drives the sealing block or seal to reset, sealing Part 30 can also revert to first state from the second state.The present invention is according to the different structure of sealing element 30, preferably two realities Apply example, respectively embodiment three and example IV, come describe to have different seal 30 puncture outfit structure.

Embodiment three

Referring to fig. 22, in the present embodiment, ventilation device is blow vent 20, and blow vent 20 also penetrates through and is set to casing storehouse 40 Side wall, blow vent 20 include inner and outer wall, offer outward opening 22 on outer wall, inner opening 21, inner opening are offered on inner wall 21 are connected to form blow vent 20 with outward opening 22, have venting channels in blow vent 20, and venting channels both ends are respectively interior open Mouth 21 and outward opening 22, are provided with container 23, container 23 is connected to blow vent 20 between inner opening 21 and inner and outer wall.

Referring to figure 2. 3, sealing element 30 includes sealing block 32 and elastic component, and one end of sealing block 32 is connect with elastic component, bullet Property part be arranged in container 23, the elastic component in the present invention can be and can generate elastically-deformable spring 31, elastic slice etc., In one embodiment of invention, elastic component is spring 31.By the compression and recovery of spring 31, so that being moved down on sealing block 32 It is dynamic, selectively to be sealed to the venting channels in blow vent 20.

When original state, blow vent 20 is separated from each other with gas injection valve 10, and sealing block 32 is in first position, and sealing block 32 exists Blow vent 20 is formed under the pressure of spring 31 and is sealed, sealing element 30 is in first state at this time.

Referring to figure 2. 5, the gas injection valve 10 in the present embodiment includes at least a valve body 11, and valve body 11 includes at least gas injection part 111.When needing that a part of gas injection valve 10 is mounted on to the blow vent of the puncture outfit to when abdominal cavity gas injection by a puncture outfit In 20, gas injection operation is realized.In order to facilitate installation of the gas injection valve 10 in blow vent 20, referring again to Figure 25, gas injection part 111 Plug division 1111, plug division 1111 and the integrated molding of gas injection part 111 and plug division are defined as in front end insertion blow vent 20 1111 outer diameter is less than the outer diameter of gas injection part 111.Correspondingly, the internal diameter of inner opening 21 is less than the internal diameter of outward opening 22, plug division 1111 outer diameter is consistent with the internal diameter of inner opening 21, and the outer diameter of gas injection part 111 is consistent with the internal diameter of outward opening 22.In gas injection valve 10 During installing with blow vent 20, plug division 1111 presses sealing block 32 and leaves venting channels in blow vent 20 to container 23 is mobile, in order to facilitate the stress of sealing block 32, sealing block 32 towards the face of outward opening 22 be inclined-plane.As gas injection valve 10 is inside The constantly shift-in of opening 21, the continuous compressed spring 31 of sealing block 32 is retracted into container 23, so that sealing element 30 is in the second shape State.When plug division 1111 is protruded into inner opening 21, and the front end of gas injection part 111 is abutted with the wall of inner opening 21, gas injection valve 10 with Blow vent 20 completes installation, and gas injection part 111 is contained in blow vent 20 at this time, and 111 outer wall of gas injection part and 20 inner wall of blow vent Between in interference fit, and the front end due to gas injection part 111 is abutted with the wall of inner opening 21, and the wall of inner opening 21 is as a kind of Stop part stops gas injection part 111 to continue mobile to puncture outfit direction, and referring to fig. 23 and 24.

After the completion of gas injection, if the 10 pairs of operations of the gas injection valve of the position have an impact, can by pulling out gas injection valve 10, thus Gas injection valve 10 is disassembled from blow vent 20, at this point, since sealing block 32 is without the thrust of gas injection valve 10, in spring 31 Under elastic force effect, sealing block 32 is depressed and is again introduced into the venting channels of blow vent 20, described in sealing element 30 blocks again Blow vent 20 to form sealing in puncture outfit casing tube storehouse 40, so that sealing element 30 reverts to first state by the second state.

Example IV

Sealing element 30 can be diversified forms in the present embodiment, specifically, according to its elastically-deformable mode, present invention column The form of three kinds of sealing elements 30 is lifted, below with the first sealing element 30, second of sealing element 30,30 pairs of the third sealing element Sealing element 30 in the present embodiment is described further, and the ventilation device in the present embodiment preferably includes snorkel 20.

The first sealing element 30

Referring to figure 2. 8, sealing element 30 is sealing block 31 made of elastic material.Under original state, sealing block 31 is logical Gas is radially arranged in channel, and in interference fit between sealing block 31 and snorkel 20, to seal up in snorkel 20 Venting channels, when gas injection valve 10 to be installed on snorkel 20, the part of sealing block 31 is applied in the outlet side 111 of gas injection part 11 Add thrust, so that sealing block 31 generates elastic deformation, gap is formed with the inner wall of snorkel 20, so that in gas injection part 11 Gas injection channel is connected to the venting channels formation in snorkel 20.In order to fix sealing block 31 with respect to the position of snorkel 20, Not only it can guarantee the sealing effect on venting channels but also do not influenced gas injection operation, the part of sealing block 31 and the inner wall of snorkel 20 are solid It is fixed to be connected.Specifically, the lower part of sealing block 31 is fixedly connected with snorkel 20 using the modes such as gluing, ultrasonic wave, figure is please referred to 29, after one end of the close puncture outfit of gas injection part 11 enters venting channels, gas injection part 11 pushes the top of sealing block 31, sealing block 31 generate elastic deformation and do not generate displacement with snorkel 20, so that sealing element 30 is changed into the second state from first state. After dismantling gas injection valve 10 from snorkel 20, gas injection part 11 is withdrawn from out of venting channels, and sealing block 31 is no longer influenced by external force Gradually retraction resets, and reverts to first state from the second state, blocks snorkel 20. again

Second of sealing element 30

Referring to Figure 30, the sealing element 30 in the present embodiment includes sealing block 31 and elastic component 32, and sealing block 31 is non-resilient Material is made, and elastic component is preferably elastic slice, and the outer diameter of sealing block 31 is consistent with the internal diameter of snorkel 20, and one end of elastic component 32 is solid It is scheduled on the wall of snorkel 20, the other end of elastic component 32 is connected with sealing block 31, original state, in the effect of elastic component 32 Under, sealing block 31 is radially arranged in venting channels, to seal up venting channels.Referring to figure 3. 1, pacify when by gas injection valve 10 When being attached on snorkel 20, the outlet side 111 of gas injection part 11 applies thrust to sealing element 30, so that elastic component 32 generates elastic shape Become, and sealing block 31 is driven to rotate, sealing element 30 is changed into the second state by first state, thus sealing block 31 and snorkel 20 Inner wall form gap, the gas injection channel in gas injection part 11 forms with the venting channels in snorkel 20 and is connected to.When by gas injection valve After 10 dismantle from snorkel 20, gas injection part 11 is withdrawn from out of venting channels, and the no longer stress of elastic component 32 gradually resets, sealing Block 31 also gradually resets under the drive of elastic component 32, but due to the resistance by 20 inner wall of snorkel, and needing manually will sealing Block 31 resets, and just sealing element 30 can be made to revert to first state from the second state, reseal venting channels.

The third sealing element 30

Referring to figure 3. 2, sealing element 30 includes sealing block 31 and elastic component 32, and is additionally provided in venting channels the One stopper section 24 and the second stopper section 25, sealing element 30 between the first stopper section 24 and the second stopper section 25, sealing block 31, First stopper section 24 and the second stopper section 25 are semiclosed setting to venting channels, and spring or elastic slice can be used in elastic component 32, One end of elastic component 32 is abutted with the second stopper section 25, and the other end of elastic component 32 is abutted with sealing block 31.Pass through elastic component 32 Elastic deformation abut or separate with the first stopper section 24, so that sealing element 30 exists so that sealing block 31 is moved along venting channels Change in both first state and the second state, to selectively be sealed to venting channels.

Specifically, being provided with the first ventilation part 21 and the second ventilation part 23 in snorkel 20 in the present embodiment, second is logical 23 part of gas part is located in the first ventilation part 21, and the second stopper section 25 is protrusion, is formed in one end of the second ventilation part 23, described One end is located in the first ventilation part 21.The end of one end of the first ventilation part 21 is arranged in first stopper section 24, is arranged in a ring, The middle opening of the annular is passed through for the outlet side 111 of gas injection part 11.The venting channels are provided in first ventilation part 21, Venting channels are also equipped in second ventilation part 23, and the venting channels connection in above-mentioned the two.Second stopper section 25, sealing Part 30 is all set in the venting channels of the first ventilation part 21.The inner cavity of venting channels and casing storehouse 40 in second ventilation part 23 It is connected.

Referring to Figure 33 and Figure 34, sealing element 30 is integrally located in the first ventilation part 21.Sealing element 30 is located at the first stopper section 24 and second between stopper section 25.Sealing element 30 includes sealing block 31 and elastic component 32.Sealing block 31 includes sealing block body 311 With multiple raised lines 312, sealing block body 311 includes along the part of the first ventilation part 21 radially extended and along the first ventilation part 21 Axially extending part.Multiple raised lines 312 are evenly spaced in the outer ring of sealing block body 311 (i.e. along the first ventilation part 21 The outside of axially extending part) on, so that sealing block 31 abuts setting, adjacent raised line with the inner wall of the first ventilation part 21 Airspace 313 is formed between 312.One end of elastic component 32 is abutted with the second stopper section 25, and the other end is abutted with sealing block 31. Spring can be used in elastic component 32.

With continued reference to Figure 33, when gas injection part 11 and snorkel 20 are separated from each other, under the elastic force of elastic component 32, sealing block The lateral surface (i.e. end face of the sealing block 31 towards the first stopper section 24) of 31 radially extending portion is abutted with the first stopper section 24, It is sealed to be formed to gas injection part 11.Further, in order to reinforce the sealing effect between the first stopper section 24 and sealing block 31, Sealing block 31 is towards being provided with the second sealing ring 3111 on the end face of the first stopper section 24.

Referring to Figure 34, when gas injection part 11 is mounted on snorkel 20, the outlet side 111 of gas injection part 11 and sealing block 31 It abuts and pushes sealing block 31 mobile to the second stopper section 25, elastic component 32 is shunk therewith, the first stopper section 24 and sealing block 31 It is separated from each other, realizes the ventilation of airspace 313.After gas injection part 11 is connected with snorkel 20, via the input of gas injection channel Gas initially enters in a part of the venting channels of the first ventilation part 21, enters the first ventilation via airspace 313 later The rest part of the venting channels of part 21 enters back into the venting channels of the second ventilation part 23, realizes the gas injection operation of puncture outfit.

Referring to Figure 34, since the first ventilation part 21 is connected to the second ventilation part 23 using means such as bonding, welding, in order to protect The sealing between the first ventilation part 21 and the second ventilation part 23 is demonstrate,proved, the second ventilation part 23 is formed around one end of the first ventilation part 21 Third stopper section 26, the third stopper section 26 fit in a ring and with the end of the first ventilation part 21.

Further, third stopper section 26 and the first ventilation part 21 or the junction leakage with the second ventilation part 23 in order to prevent Gas, the second stopper section 25 and the interval of third stopper section 26 form annular groove, are provided with the first sealing ring 27 in annular groove, and first The gap that sealing ring 27 and the first ventilation part 21 and the second ventilation part 23 are formed is interference fitted.

In the above-described embodiments, sealing element 30 generates elastic deformation under external force, releases it for venting channels Sealing, venting channels are connected to the gas injection channel in gas injection part 11." venting channels are connected to the gas injection channel in gas injection part 11 " Be meant that: venting channels are no longer completely sealed, and the gas injection channel in venting channels and gas injection part 11 collectively constitutes transportable The channel of gas.

Referring to fig. 27, gas injection valve 10 used in the present embodiment includes gas injection part 11, and it is logical that gas injection is provided in gas injection part 11 Road.One end of gas injection part 11 is inlet end, and the other end is outlet side 111, and inlet end is connected with gas source, and outlet side 111 is used for It is inserted into the output in snorkel 20 and for gas in gas injection channel.The shape of outlet side 111 is the truncated cone, and outlet side The edge of 111 ends is set as chamfering, enters in venting channels convenient for outlet side 111 and is in contact with sealing element 30.Outlet End 111 is provided with venthole 112, i.e., the gas inputted from the inlet end of gas injection part 11 is flowed along gas injection channel, from venthole 112 It exports and enters venting channels, as shown in figures 29 and 31.

In the present embodiment, outlet side 111 may be configured as coaxial with gas injection part 11, may be alternatively provided as deviateing the gas injection part 11 Central axis, such as the first and second of sealing element 30, due to 31 side of sealing block and 20 side wall of snorkel or elasticity Part 32 is fixedly connected, then exerting a force in the other side to sealing block 31, can more easily open sealing block 31, therefore outlet side 111 be the central axis setting for deviateing gas injection part 11；And it is directed to the third sealing element 30, and referring to figure 2. 7 and 35, then it must be from close The central axis of sealing 30 exerts a force, therefore outlet side 111 and gas injection part 11 are coaxially disposed.

Further, in this embodiment in order to enable sealing element 30 can revert to first state, gas injection valve from the second state 10 or gas injection part 11 can be withdrawn from from venting channels, the outer tube wall of snorkel 20 and the outside of gas injection valve 10 or gas injection part 11 It is detachably connected, and preferably the two is connected together.

Specific structure are as follows: referring to figure 2. 7, interconnecting piece 113 is provided on gas injection part 11, and interconnecting piece 113 is along 11 axis of gas injection part To extend and around gas injection part 11 and with the setting spaced apart radially of the outer tube wall of gas injection part 11, it is described distance use In the tube wall for accommodating snorkel 20, interconnecting piece 113 is provided with link slot 1131 close to the one end in casing storehouse 40.

Fixture block 22 has been provided projectingly on the outer tube wall of snorkel 20.Link slot 1131 penetrates through 113 side wall of interconnecting piece.Connection Slot 1131 includes along the part of interconnecting piece 113 axially extending part and the circumferentially extending along interconnecting piece 113, two parts substantially shape L-shaped.The edge of circumferentially extending part is provided with protrusion 1132, as shown in figures 26 and 27.Preferably, being opened on interconnecting piece 113 If there are two link slots 1131, further, two link slots 1131 are spaced 180 °；Accordingly, it is set on the outer wall of snorkel 20 Fixture block 22 there are two setting.Gas injection part 11 is inserted into snorkel 20, fixture block 22 enters axially into connection by the entrance of link slot 1131 Slot 1131, rotates gas injection part 11, and fixture block 22 is circumferentially advanced and squeezed, crosses protrusion 1132 hence into link slot 1131 Engage in region 1133, gas injection valve 10 is installed with snorkel 20, and the side wall of protrusion 1132 and fixture block 22 abuts against thus will Fixture block 22 is locked at engaging region 1133.Protrusion 1132 makes gas injection valve 10 and the connection of snorkel 20 closer, more firm, keeps away Exempt from gas injection valve 10 to loosen or fall off from snorkel 20, simultaneously because gas injection valve 10 is closely connect with snorkel 20, avoids its hair Raw displacement is to influence sealing between the two.

When disassembly is desired, rotary connector 113 or to protrusion 1132 force and simultaneously rotary connector 113 so that Fixture block 22, which leaves engaging region 1133, can be such that gas injection part 11 and snorkel 20 separates, and gas injection valve 10 is made to become independent again Body.

Certainly, gas injection valve 10 is not limited to the above-mentioned mode engaged with the connection type of snorkel 20, can also be it His form.Such as the use elastic material of interconnecting piece 113 is made, the internal diameter of interconnecting piece 113 is consistent with the outer diameter of snorkel 20, as general When gas injection valve 10 is mounted on snorkel 20, interconnecting piece 113 is made to envelope snorkel by means of the elastic deformation of interconnecting piece 113 20 part makes the tube wall of snorkel 20 be fastened on interconnecting piece 113 and gas injection part by means of the elastic force of the generation of interconnecting piece 113 The distance between in.

Gas source in the present invention includes pneumoperitoneum apparatus, air pump or pressure cylinder.

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, modifies, replacement and variant, and the technical solution after above-mentioned change, modification, replacement and modification is in the present invention Protection scope within.

Claims

1. a kind of sealing element for puncture outfit, the puncture outfit include venting channels, which is characterized in that the sealing element has First state and the second state；When the sealing element is in first state, the sealing element is at least partly placed in the ventilation In channel and the sealing element seals the venting channels；When the sealing element is in the second state, the sealing element releasing pair In the sealing of the venting channels, gas can enter the puncture outfit by the venting channels.

2. sealing element as described in claim 1, which is characterized in that the puncture outfit injects gas from gas injection system to it；Institute Stating gas injection system makes the sealing element be transformed into the second state by first state.

3. sealing element as claimed in claim 2, which is characterized in that connection of the gas injection system in itself and the puncture outfit External force is applied to the sealing element in journey, so that the sealing element be made to be transformed into the second state by first state.

4. sealing element as described in claim 1, which is characterized in that the sealing element is reversibly in the first state and described It is converted between second state.

5. sealing element as claimed in claim 4, which is characterized in that the sealing element is at least partly made of elastic material；Institute It states puncture outfit and injects gas from gas injection system to it, the gas injection system and the puncture outfit are detachably connected.

6. sealing element as described in claim 4 or 5, which is characterized in that the sealing element includes sealing block and elastic component, described One end of elastic component is fixed in the venting channels, and the other end of the elastic component is connect with the sealing block.

7. sealing element as described in claim 4 or 5, which is characterized in that the sealing element includes seal, and the seal is set It is placed in the venting channels, the seal includes multiple sealing flaps, and the multiple sealing flap mutually abuts.

8. sealing element as described in claim 4 or 5, which is characterized in that the sealing element includes seal, and the seal is set It is placed in the venting channels, the seal includes multiple sealing flaps, and the multiple sealing flap partly overlaps.

9. sealing element as described in claim 1, which is characterized in that the sealing element irreversibly changes from the first state At second state.

10. sealing element as claimed in claim 9, which is characterized in that the sealing element includes sealing film, the sealing film setting It is mutually fixed in the venting channels and periphery of the sealing film with the venting channels.

11. sealing element as claimed in claim 9, which is characterized in that the puncture outfit injects gas from gas injection system to it；Institute State gas injection system in its connection procedure with the puncture outfit to the sealing element apply external force, thus make the sealing element by First state is transformed into the second state；The gas injection system is unremovably connect with puncture outfit formation.

12. sealing element as claimed in claim 11, which is characterized in that the sealing element is at least partly made of elastic material.

13. the sealing element as described in claim 11 or 12, which is characterized in that the sealing element include locating piece and with it is described fixed The cock body of position part connection, the locating piece are fixed in the puncture outfit, and at least part of the cock body is removably arranged In the venting channels of the puncture outfit, to realize selectivity sealing to the venting channels；The gas injection system is to the plug Body applies the external force, and the cock body is made to remove the venting channels.

14. sealing element as claimed in claim 13, which is characterized in that the cock body is connect with the locating piece by connecting rod.

15. sealing element as claimed in claim 13, which is characterized in that the cock body is cylindrical body or the truncated cone；Alternatively, described Cock body includes front end face and side, forms chamfering between the front end face and the side；Alternatively, the cock body includes front end Face, the front end face of the cock body are inclined-plane, cambered surface or tapered surface.

16. a kind of puncture outfit, including casing storehouse, which is characterized in that described sleeve pipe storehouse include ventilation device and as claim 1 to Sealing element described in any one of 15, the ventilation device include the venting channels, and the venting channels are connected to the set The inner cavity in pipe storehouse, the sealing element are at least partially arranged in the venting channels；The ventilation device includes that perforation is set to The blow vent of the wall in described sleeve pipe storehouse, the venting channels are formed in the blow vent.

17. puncture outfit as claimed in claim 16, which is characterized in that the blow vent includes inner and outer wall, the inner wall Upper formation inner opening, forms outward opening on the outer wall, and the internal diameter of the inner opening is less than the internal diameter of the outward opening, it is described in Accommodating space is formed between wall and outer wall, the accommodating space is connected to the venting channels, and the sealing element is at least partly set It is placed in the accommodating space.

18. puncture outfit as claimed in claim 16, which is characterized in that the ventilation device further comprises snorkel, described One end of snorkel is set to the outer wall in the described sleeve pipe storehouse of the blow vent position, and the other end of the snorkel is along remote Direction from described sleeve pipe storehouse extends；The venting channels include the channel being formed in the blow vent and are formed in described logical Endotracheal channel, the channel being formed in the blow vent are connected to the channel being formed in the snorkel.

19. puncture outfit as claimed in claim 18, which is characterized in that be provided with slot or convex on the outer wall of the snorkel Block.

20. puncture outfit as claimed in claim 18, which is characterized in that in the snorkel along the snorkel it is axial according to It is secondary to be provided with the first stopper section and the second stopper section, the venting channels include the channel formed through first stopper section and The channel formed through second stopper section；The sealing element is at least partially disposed in first stopper section and the second backstop Between portion.