CN207755342U - A kind of puncture outfit casing tube component with air bag - Google Patents

Abstract

The utility model is related to a kind of puncture outfit casing tube component with air bag, including the first sealing group and the second seal assembly, first seal assembly includes lower housing and casing that is coupled and extending to distal end, described sleeve pipe includes boot proximal end, proximal end and the tube wall extended therebetween, the tube wall limits the instrument channel through boot proximal end and proximal end, the outer surface of described sleeve pipe distal end includes lip region and the stepped area being attached thereto, the stepped area includes the annular joint face with first diameter and the annular securing face with second diameter and the cliff face extended therebetween, and the first diameter is more than second diameter；Described sleeve pipe component also includes the inflatable air bag to swell, to the check valve assembly of inflation/deflation and by the gas channel of the air bag and check valve unicom.

Description

A kind of puncture outfit casing tube component with air bag

Technical field

The utility model is related to Minimally Invasive Surgery instrument more particularly to a kind of puncture outfit structures with air bag.

Background technology

Puncture outfit is in a kind of Minimally Invasive Surgery (especially laparoscopic surgery), for establishing the artificial channel for entering body cavity Surgical instrument.Usually it is made of sheath assembly and puncture needle.Its clinical general occupation mode is：First cut on patient skin Osculum, then puncture needle is run through into sheath assembly, however penetrate stomach wall through skin opening together and enter body cavity.Once into body cavity Puncture needle is removed afterwards, leaves the channel that sheath assembly passes in and out body cavity as instrument.

In hard tube endoscope-assistant surgery, especially in laparoscopic surgery, generally use pneumoperitoneum apparatus is to the lasting perfusion of abdominal cavity of patients Gas (such as carbon dioxide gas) simultaneously maintains stable air pressure (about 13~15mmHg), empty to obtain enough surgical procedures Between.Sheath assembly is usually by casing, shell, diaphragm seal (also known as instrument seal) and zero sealing (also known as automatic-sealed) composition.Institute It states casing to penetrate to body cavity outside body cavity, the channel of body cavity is passed in and out as instrument.The shell is by casing, zero sealing and seals Film connects into a sealing system.Zero sealing is generally not provided the sealing for insertion instrument, and certainly when instrument is removed It is dynamic to close and form sealing.The diaphragm seal banding instrument and forms sealing when instrument is inserted into.

Laparoscopic surgery establishes the technology of pneumoperitoneum and is broadly divided into two kinds at present：It is open (Hasson methods) and closed (the Veress skill of handling needles).Wherein Hasson methods are mainly used for the patient there may be adhesion of abdominal wall.Hasson methods are usually first along tripe Navel upper limb or lower edge do 2cm notch, and notch runs through entire stomach wall, then stretches into finger through thus notch and detect, and detach abdominal wall With the adhesion of nethike embrane or intestinal tube；Then it is inserted into Hasson cannula systems under direct-view, and thinks abdominal cavity of patients via Hasson casings It injects carbon dioxide gas and forms pneumoperitoneum.

Current disclosed Hasson cannula systems are broadly divided into three classes, the first kind, such as U.S. Utility Patent A kind of puncture cannula component for housing containing hinge arrangement that US5203773 is disclosed swells to wear described by hinge rotation Thorn sheath assembly is fixed on patient's stomach wall, and such puncture cannula component is susceptible to leakage and is gradually abandoned.Second class, example The Hassan casings that taper fixing piece and smooth sheath assembly as disclosed in U.S. Utility Patent US5257973 collectively constitute The taper fixing piece is fixed in patient incision first by way of suture, then smooth sheath assembly is fixed by system In the taper fixing piece.Such Hassan cannula systems manufacturing cost is relatively low and most widely used, but its is complicated for operation and long Phase, which squeezes notch, leads to the damage bigger to patient.Third class, such as U.S. Utility Patent US5468248, Syringe selection can be used in the puncture cannula component containing sacculus disclosed in US6908454, US8147453, described sleeve pipe component Property the inflation sacculus that swells sheath assembly is fixed on patient's stomach wall, deflate release and deflated balloon are convenient for sheath assembly via trouble The skin incision of person into and out.Sheath assembly can be firmly fixed to patient skin incision and real by the sacculus that swells The sealing of existing contact area, and it is smaller for the injury of patient's wound.But such sacculus sheath assembly complicated and at This is higher, expensive.

Utility model content

In order to solve background technology one or more technical problem, the utility model proposes a kind of puncture outfit set with air bag Tube assembly, including the first sealing group and the second seal assembly, first seal assembly includes lower housing and coupled And the casing extended to distal end, described sleeve pipe include boot proximal end, proximal end and the tube wall extended therebetween, the tube wall Limit the instrument channel through boot proximal end and proximal end, the outer surface of described sleeve pipe distal end includes lip region and phase therewith Stepped area even, the lip region are gradually increased by distally proximally axially extending and lateral dimension, the stepped area packet Containing the annular joint face with first diameter and the annular securing face with second diameter and the cliff face extended therebetween, and The first diameter is more than second diameter；Described sleeve pipe component includes also the inflatable air bag to swell, to the unidirectional of inflation/deflation Valve module and by the gas channel of the air bag and check valve unicom；The air bag include balloon proximal and air bag distal end and Air bag distal end is fixed on the annular securing face for closing on cliff face by the pneumatophore extended therebetween, the first retainer plate, institute There is third diameter, the third diameter to be not more than first diameter for the outer surface for stating the formation of the first retainer plate；Second retainer plate will The balloon proximal is fixed on described sleeve pipe closer on the outer surface of the tube wall of described sleeve pipe proximal end；The air-flow is logical Road includes air bag communicating portion and check valve communicating portion and intervenient conducting tube, and the conducting tube includes independent In the hollow conduit of the tube wall or the conducting tube comprising by being arranged in the outer surface of tube wall and by proximate Axially extending conduit trough is mutually bonded the hollow cavity of the enclosed type to be formed with the seal stock for being covered in tube wall appearance.

A kind of optional technical solution, first retainer plate include the first binding circle, and second retainer plate includes the Two binding circles.

A kind of optional technical solution, the conduit include metal catheter made of metal, the metal catheter Including distal end of catheter and catheter proximal end and the hollow conduit through the catheter proximal end and distal end of catheter；The check valve assembly packet Containing the side opening to match with the catheter proximal end, the catheter proximal end cooperatively forms check valve communicating portion with the side opening；Institute Balloon proximal is stated to be coated on the outer surface of the distal end of catheter and fix to form air bag communicating portion using second retainer plate； The gap of the check valve communicating portion and air bag communicating portion uses glue sealing.

A kind of optional technical solution is provided with axially extending local crowning, the local crowning along conduit trough both sides The protrusion tube wall maximum height be not more than the metal catheter diameter.

The outer diameter of a kind of optional technical solution, the metal catheter is not more than 1mm, and internal diameter is not less than 0.4mm.

A kind of optional technical solution, the check valve assembly include bonnet, limited block and spring, bonnet and limiting block Block is flexibly connected, and so that limited block is withstood bonnet by compressed spring.

A kind of optional technical solution, described sleeve pipe component further include fixing sleeve component, and the fixing sleeve component includes solid Fixed pad and latch fitting, the fixed pad include the pad slot of the hassock of its distal end, the thin pad of proximal end, and connection hassock and thin pad, institute It includes the handle and position-limited edge that there is the latch fitting body of interior curling coupling mechanism force and latch fitting body both ends to extend, the lock to state latch fitting Part is locked pad by being inserted in the latch fitting body of pad slot.

Description of the drawings

In order to more fully understand the essence of the utility model, it is described in detail below in conjunction with attached drawing, wherein：

Fig. 1 is the clinical application simulated scenario figure with airbag casing pipe component；

Fig. 2 is the three-dimensional view of the sheath assembly 10 of the utility model；

Fig. 3 is the broken section of sheath assembly solid shown in Fig. 2；

Fig. 4 is the three-dimensional view (concealing Duckbill seal and lower cover) of the first seal assembly 11；

Fig. 5 is the explosive view of the first seal assembly shown in Fig. 4；

Fig. 6 is projection view of the casing 112 along check valve assembly axial direction；

Fig. 7 is the side elevational view of casing 112 shown in Fig. 6；

Fig. 8 is the schematic diagram when air bag 102 is in a deflated state；

Fig. 9 is the schematic diagram when air bag 102 is in inflated condition；

Figure 10 is the sectional view that component crosses casing axis and conduit trough axis described in described Fig. 4；

Figure 11 is the partial enlarged view of figure in Figure 10 ellipse circles；

Figure 12 is the 12-12 sectional views of Figure 10；

Figure 13 is the 13-13 sectional views of Figure 10；

Figure 14 is the explosive view (concealing Duckbill seal and lower cover) of the first seal assembly 21；

Figure 15 is the sectional view that component crosses casing axis and conduit trough axis described in described Figure 14；

Figure 16 is projection view of the casing shown in Figure 14 along check valve assembly axial direction；

Figure 17 is the side elevational view of casing shown in Figure 16；

Figure 18 is the partial enlarged view of figure in Figure 15 ellipse circles；

Figure 19 is the 19-19 sectional views of Figure 15；

Figure 20 be Figure 10 ring in figure partial enlarged view；

Figure 21 is the 21-21 sectional views of Figure 10；

Figure 22 is the explosive view of fixing sleeve component 105；

Figure 23 is the three-dimensional view after the assembling of fixing sleeve component shown in Figure 22；

Figure 24 is the sectional view of fixing sleeve component described in Figure 23；

In all views, identical label indicates equivalent part or component.

Specific implementation mode

Disclosed herein is the embodiments of the present invention, it should be understood, however, that disclosed embodiment is only this reality With novel example, the utility model can be realized by different modes.Therefore, this disclosure be not to be construed for It is restrictive, but only as the basis of claim, and it is how new using this practicality as introduction those skilled in the art The basis of type.

With reference to figure 1-3, for convenience of stating, the side of follow-up all Proximity operation persons is defined as proximal end, and far from operator One side is defined as distal end, and the central axis for defining sheath assembly 10 is the longitudinal axis 1000, and the direction of follow-up all substantially parallel longitudinal axis claims For axial direction, follow-up all directions for being approximately perpendicular to the longitudinal axis are known as laterally.

As shown in Figure 1, in conjunction with described in foregoing background, when sheath assembly 10 is inserted in place, various Minimally Invasive Surgery instruments can It is inserted into body cavity with the channel formed by sheath assembly 10.It may be needed in surgical procedure while using one or more casings Component includes sheath assembly 10 and multiple sheath assemblies 40 in Fig. 1.During surgery, surgeon grasps in sheath assembly channel Make various instruments, such as endoscope, nipper, scissors etc., contact generation frictional force between instrument and sheath assembly.These frictions Strength may result in casing and be moved along the direction of stomach wall 50 outwardly or inwardly.If sheath assembly is not fixed, such as cover Tube assembly 40 can the movement of proximally facing or distal direction, may result in skid off stomach wall 50 or be inserted into the casing of body cavity further into Enter body cavity, patient is caused to be damaged.Therefore sheath assembly 10 is firmly fixed on stomach wall 50 as shown in sheath assembly 10 With regard to of crucial importance.

The structure and composition of the utility model first embodiment puncture outfit is illustrated in detail in Fig. 2-18.As Figure 2-3, one The typical puncture outfit of kind includes 60 (not shown) of puncture needle and sheath assembly 10.Sheath assembly 10 has open proximal end 192 and opens The boot proximal end 111 put.In the typical application of one kind, puncture needle 60 runs through sheath assembly 10, then together through skin opening It penetrates entire stomach wall and enters body cavity.Once into body cavity, puncture needle 50 is removed and leaves sheath assembly 10 and passed in and out as instrument The channel of body cavity.The proximal end 192 is external in patient and described sleeve pipe distal end 111 is in patient's body.A kind of preferred set Tube assembly 10 can be divided into the first seal assembly 11 and the second seal assembly 12.The card slot 119 and the component of the component 11 12 hook 162a cooperation fastenings.The cooperation of the hook 162a and card slot 119 is the quick locking structure that singlehanded can quickly split.This Mainly for facilitating the tissue or foreign matter that take out patient's body when operation.Fast lock between the component 11 and component 12 is connected with A variety of realization methods.In addition to the structure of the present embodiment displaying, threaded connection, rotary buckle or other fast lock knots also can be used Structure.Selectable, the component 11 and component 12 can be designed to the structure that can not quickly split, such as first sealing group By ultrasonic bonding between part 11 and the second seal assembly 12, glue is bonded or the mode of machine riveting is directly connected into not Detachable entirety.

Fig. 3 depicts the composition and assembly relation of the second seal assembly 12.Sealing membrane modules 108 are clipped in upper cover 106a and upper Between shell 109.The proximal end 182 of the sealing membrane modules 108 be fixed on the upper cover 106a inner ring 166a and it is described on Between the inner ring 196 of shell 190.There are many fixed forms between the upper shell 190 and upper cover 106a, and interference can be used and match It closes, ultrasonic welding, is glued, buckle the modes such as fixed.The shell for the upper shell 190 that the present embodiment displaying connection type is It is fixed by ultrasonic bonding between 191 and the shell 161a of the upper cover 106a.This fixation makes the sealing membrane modules 108 proximal end 182 is in compressive state.The sealing membrane modules 180 include diaphragm seal 180 and protective device 181.The protection Device 181 is embedded in the diaphragm seal 180.The size of the protective device 181 and configuration design are described at may be mounted at The inside of diaphragm seal 180 with the diaphragm seal 180 without generating interference.The protective device 181 is moved together with diaphragm seal 180 Or float, the centre for protecting the diaphragm seal 180 is worn caused by the sharp edge for protecting it from the surgical instrument of insertion Hole or tearing.The diaphragm seal 180 is usually by natural rubber, silica gel, and isoprene rubber elastomeric material is made；The protective device 181 usually by thermoplastic elastomer (TPE), and polypropylene, polyethylene, the rigidity such as poly- record ethylene or semi-rigid material are made.

Fig. 3 depicts the composition and assembly relation of the first seal assembly 11.First seal assembly 11 include lower housing 101 with And it is coupled and to distal end extend casing 112, described sleeve pipe 112 include boot proximal end 111, proximal end 112a and The tube wall 112b, the tube wall 112b extended therebetween limits logical through the instrument of boot proximal end 111 and proximal end 112a Road.The lower housing 101 has the inner wall 116 of support Duckbill seal and the air valve mounting hole 117 with inner wall unicom.Spool 110a In valve body 110 and it is installed along in the mounting hole 117.The flange 176 of Duckbill seal 107 is sandwiched in the inner wall Between 116 and lower cover 106.There are many fixed forms between the lower cover 106 and lower housing 101, and interference fit can be used, and surpasses The modes such as sound wave welds, and is glued, and buckle is fixed.4 mounting posts 161 of lower cover 106 described in the present embodiment and the lower housing 101 4 mounting holes 118 interference fit, this interference fit make Duckbill seal 107 be in compressive state.Described sleeve pipe 112, Inner wall 116, Duckbill seal 107, valve body 110 and spool 110a have collectively constituted first chamber 13, the formation of the first chamber 13 Gas handling system channel, while being also the channel of instrument disengaging body cavity.In the present embodiment, the Duckbill seal 107 is single seam, but Other kinds of closure valve, including tongue type valve can be used, stitches duckbill valve more.When external device runs through the Duckbill seal 107 When, duckbilled 173 can open, but it is generally not provided being fully sealed relative to the instrument.When the instrument is removed, The duckbilled 173 is closed automatically, to prevent the fluid in first chamber 13 to external leakage.

Referring now to Fig. 3-5, described sleeve pipe component 10 also includes air bag 102, conduit 103, check valve assembly 104 and fixing sleeve Component 105.The air bag 102 is fixed on the remote location of described sleeve pipe component 10, and conduit 103 is by the check valve assembly 104 It is formed with 102 unicom of the air bag, constitutes the second cavity for including the airbag chamber and its inflatable and deflatable channel that can be swollen 14。

With reference to figure 5-7, the outer surface of described sleeve pipe distal end 111 includes lip region 91 and the stepped area 92 being attached thereto, The lip region 91 is gradually increased by distally proximally axially extending and lateral dimension, and the stepped area 92 includes to have first The annular joint face 93 of diameter D1 and annular securing face 95 with second diameter D2 and the cliff face 94 extended therebetween, and D1 ＞ D2.In this example, the outer surface of described sleeve pipe 112 formed with 95 smooth transition of the annular securing face one it is whole Body；However the protrusion of non-smooth transition, cascaded surface, groove, pit etc. can also be included.

With continued reference to Fig. 5-7, the proximal location of described sleeve pipe 112 includes to install the valve seat 115 of check valve assembly.Ginseng Figure 20-21 is examined, the valve seat 115 includes that cylindrical side wall limits mounting hole 115b and sink hole 115d.Described sleeve pipe 112 is also wrapped Containing to install the conduit trough 80 of conduit 103, the conduit trough 80 is extended proximally into along the outer wall of described sleeve pipe 112 and is penetrated The side opening 115a that the valve seat 115 is formed and the sink hole 115d unicom；The conduit trough 80 extends distally to the set Pipe distal end 111 and with 92 unicom of the stepped area.Referring now to Fig. 5-11, the air bag 102 includes air bag distal end 121, air bag Proximal end 123, and pneumatophore 122 that balloon proximal 123 is extended to by air bag distal end 121.The air bag distal end 121 is fixed to ring On shape stationary plane 95, the balloon proximal 123 is fixed on the tube wall 112b of the described sleeve pipe 112 close to proximal end 112a Outer surface on position, fixed position can be adjusted according to bladder shape and size in a certain range.The conduit 103 wraps Containing distal end of catheter 131 and catheter proximal end 133 and the hollow conduit 132 extended therebetween.The catheter proximal end 133 is inserted into institute It states in side opening 115a, hollow conduit 132 is embedded in the conduit trough 80, and distal end of catheter 131 is wrapped in the balloon proximal 123 inside.The local outer surface of the check valve assembly 104, conduit 103, air bag 102 and casing 112 mainly constitutes packet Containing the air bag 102 that can be swollen, to the check valve assembly 104 of inflation/deflation and by the gas of the air bag 102 and check valve unicom The second cavity 14 of circulation road 14m.Second cavity 14 is not connected to the first chamber 13.The gas channel 14m packets The 14a and check valve communicating portion 14b of communicating portion containing air bag and intervenient conducting tube 14c, the conducting tube 14c Including independently of the hollow conduit 103 of the enclosed type of the tube wall 112b.The catheter proximal end 133 and side opening 115a coordinates Form check valve communicating portion 14b；The outer surface that the balloon proximal 123 is coated on the distal end of catheter 131 forms air bag connection Logical part 14a；The gap of the check valve communicating portion 14b and air bag communicating portion 14a use glue sealing.

There are many kinds of connections and fixed form between the air bag 102 and described sleeve pipe 112.In a kind of implementation, The diameter of the air bag distal end 121 and balloon proximal 123 is slightly larger than the diameter of casing 112, but ensures 121 Hes of the air bag distal end Balloon proximal 123 is fitted closely with casing 112, then is firmly connected the two by the way of glue bonding and realized airtight Envelope.The glue for meeting bio-compatibility requirement, including but not limited to epoxy resin glue, UV (ultraviolet light) solidification glue can be used Water, polyester base (such as polyurethane) glue, quick-dry type structure glue etc..In another implementation, additional elastic ring is used The air bag 102 is fixed on described sleeve pipe 112.It is remote to be pressed in air bag by 0-11 referring now to figure 1 for 125 sets of first retainer plate In the entire exterior circumference at end 121, the fixed area of formation has third diameter D3, and D3≤D1；By 124 sets of the second retainer plate It is pressed in the entire exterior circumference of balloon proximal 123；Then partial aperture gluing is fixed, it is further to ensure that air bag is fixed The air-tightness of related contact areas.In another preferred scheme, is tied up using filament and is bonded common fixed mode with glue, The outer surface that the first binding circle and balloon proximal 123 are wound in the outer surface of air bag distal end 121 winds the second binding circle by gas Capsule is fixed, then is fixed for partial aperture or junction gluing, the further gas for ensureing the fixed related contact areas of air bag Close property.

The air bag can be made of a variety of materials：In a kind of optional implementation, the air bag is by silicon rubber, isoamyl Rubber, the thermosets such as natural rubber are made.U.S. Utility Patent US5468248, US6908454 (abbreviation P248, P454 being disclosed in) can be used for gas described in the utility model using air bag made of elastic material and its operation principle Capsule 102.Fig. 9 illustrates a kind of using air bag 102 made of silicon rubber, and the pneumatophore 122 of the air bag 102 is by cylindrical ring Shape wall forms.After the boot proximal end 111 of sheath assembly 10, which penetrates patient's stomach wall, enters body cavity, using syringe or other tools Fluid is injected to second cavity 14 through check valve assembly 104, pneumatophore 122 is made to swell to prevent sheath assembly to external It skids off (as shown in Figure 1).When needing to extract sheath assembly 10, using syringe or other tools via check valve assembly 104 It extracts the fluid in second cavity 14 out, the pneumatophore 122 is made to be restored to cylinder, convenient for extracting.It is another optional In implementation, the air bag can be made of thermoplastic elastic materials such as polyurethane films, or by nylon film, polyester film Equal thermoplastic materials are made.Such as the air bag manufacture material that U.S. Utility Patent US8888692 (abbreviation P692) is disclosed, system Make technique and application method, to the air bag of the utility model 102 after can also improving.

In addition to air bag itself, the inflatable and deflatable channel of air bag is indispensable component.In published existing skill In art, almost all uses double-jacket tube mode (or the encased pipe mode of inner sleeve), using the gap between double-jacket tube as gas The inflatable and deflatable channel of capsule.Such as P248, P454 are disclosed and are manufactured air bag using silica gel or latex elastomeric material, using double Sleeve-like manner realizes the scheme of air bag air inlet and deflation.Those skilled in the art is to be understood that the casing containing air bag Component is usually disposable product (because airbag structure non-dismountable and cleaning), described in the production of generally use injection molding manner The slender casing of sheath assembly, the wall thickness of any slender casing usually >=0.8mm；In instrument channel size (casing inner diameter) phase Deng under the premise of, the double-tube structure increases the outer diameter of entire sheath assembly, to give wound or the increase of patient's bigger Sheath assembly penetrates the puncture force of stomach wall.Such as P692 discloses a kind of outer tube scheme containing air bag, it is described containing air bag Outer tube is fixed to the outer surface of the casing (inner sleeve) of sheath assembly, and the gap between the outer tube and inner sleeve is as gas The inflatable and deflatable channel of capsule.The housing is fabricated by stiff thin-film material by extrusion blow mode.P692 points out to adopt Air bag is manufactured than the intensity higher using air bag made of silica gel or latex elastomeric material with non-elastic material, can prevent air bag Rupture.The manufacture of the outer tube containing air bag is more complicated, usually available two methods manufacture, and a kind of method is first with extrusion blow The larger-diameter cylindric tubing of method manufacture, then uses pyrocondensation method to reduce the diameter of the tubing to form air bag；Separately A kind of method is the cylindric tubing of small diameter first to be made with extrusion blow legal system, then local elongation swells to form air bag.No matter use Which kind of method, the thin-film material thickness due to squeezing blow molding are consistent substantially, and the wall thickness of pneumatophore is necessarily much smaller than The wall thickness for the outer tube being connected therewith.The wall thickness of the outer tube disclosed in P692 is 0.008-0.012 inches (0.2mm-0.3mm), and corresponding air bag wall thickness is 0.0005-0.002 inches (0.001mm-0.05mm).However, working as air bag When wall thickness is 0.001-0.05mm, the manufacture of usual air bag becomes very complicated, and wall thickness accuracy control is very stringent, and its intensity is often not It is enough.It is commercially produced based on P692 disclosures technology and with the puncture outfit containing air bag that KII brands are sold, the wall thickness of air bag is about 0.1mm and the wall thickness of its outer tube is about 0.8mm.In the product having been commercialized, the wall thickness of outer tube is thicker, same additional increasing The big outer diameter of entire sheath assembly, to patient's bigger wound or increase the puncture force that sheath assembly penetrates stomach wall.

The sheath assembly 11 that this example discloses, the realization that check valve assembly 104 and air bag 102 are connected using conduit 103 are filled The scheme of gas and deflation simplifies the design and manufacturing process of air bag, reduces the overall diameter of casing 112, is conducive to reduce set Tube assembly penetrates the puncture force of stomach wall and reduces the wound size of patient's stomach wall.In a kind of implementation, such as Fig. 5 and Figure 10 institutes Show, the conduit 103 is mounted in conduit trough 80, and the proximal end 133 of the conduit 103 is inserted by conduit trough 80 in valve seat 115 And it communicates therewith.In order to ensure not increasing as possible 112 diameter of casing, the material selection metal material of conduit 103 is made, this implementation Conduit 103 is made of stainless steel capillary in example, the pipe thickness 0.05-0.1mm of conduit 103, the overall diameter 0.6- of conduit 103 1.2mm, internal diameter 0.5-1.0mm.In a kind of scheme, casing 112 is seamlessly transitted with 103 global approximation of conduit, 112 shape of casing At the casing profile of general toroidal.With reference to figure 12 and Figure 13, another optional technical solution, 80 shape of conduit trough of casing 112 At inner groovy, and with install into conduit 103 be formed in the slight evagination in 80 both sides of conduit trough and tangent with 112 wall of casing One inclined-plane 81 and the second inclined-plane 82, the conduit 103 and 81 and second inclined-plane of the first inclined-plane, 82 smooth transition.In described The outer surface of empty catheter 132 and the balloon proximal 123, conduit trough 80 are small between first inclined-plane 81 and the second inclined-plane 82 Gap can pass through glue fixing seal.Using metal material conduit 103 when, the catheter proximal end 133 is inserted into the side Hole 115a and fixation, and distal end of catheter 131 is wrapped by the balloon proximal 123, the hollow conduit 132 and the conduit Glue may be used between slot 80 to fix or be not fixed.Nearly all it is to use double-jacket tube side in existing disclosed technical solution Formula forms the inlet channel of air bag.It should be appreciated by those skilled in the art will necessarily substantially be increased using double-jacket tube inlet channel The diameter of jacketed pipe does one's utmost to ensure that the idea for not increasing casing diameter as possible is completely contradicted with the utility model.This practicality The novel conduit 103 using capillary manner is used as inlet channel, only increases diameter casing part is slight, substantially be not provided with The casing effect of inlet channel is suitable.

In another optional scheme, the material plastic material of the conduit 103 is made, the wall of the plastic catheter 103 Thickness is 0.1-0.2mm, since as the wall thickness of plastic catheter 103 relatively thin (0.1-0.2mm), plastic catheter 103 is shown quite Flexibility, therefore the internal diameter of plastic catheter 103 can be than 103 bigger of conduit of metal material.The distal end of the plastic catheter 103 131 are wrapped up and fixed using glue by the balloon proximals 123, and the plastic catheter proximal end 133 is inserted into the side opening 115a And fixed using glue, it is fixed using glue between the hollow conduit 132 and the conduit trough 80.

Figure 14-19 illustrates the first seal assembly 21 of another optional implementation.First seal assembly 21 It is substantially equivalent with the structure and composition of first seal assembly 11.First seal assembly 21 includes casing 112, and duckbilled is close Envelope 107 and lower cover 106.The Duckbill seal 107 is by between clamp sleeve 112 and lower cover 106.First seal assembly 21 is also Including air bag 102, seal stock 203, check valve assembly 104 and fixing sleeve component 105.Described sleeve pipe 112 includes boot proximal end 111.The outer surface of boot proximal end 111 includes lip region 91 and the stepped area 92 being attached thereto, and the lip region 91 is by distal end Proximally axially extending and lateral dimension gradually increases, and the stepped area 92 includes the annular joint face with first diameter D1 93 and the annular securing face 95 with second diameter D2 and the cliff face 94 that extends therebetween, and D1 ＞ D2.Described sleeve pipe 112 Proximal location include installing the valve seat 115 of check valve assembly.The valve seat 115 includes that cylindrical side wall limits mounting hole 115b and sink hole 115d.Described sleeve pipe 112 also include conduit trough 80, the conduit trough 80 along described sleeve pipe 112 outer wall It extends proximally into and penetrates the formation side opening 115a of the valve seat 115 and the sink hole 115d unicom；The conduit trough 80 is to remote End extend to described sleeve pipe distal end 111 and with 92 unicom of the stepped area.Described sleeve pipe 112 further includes the first glue groove 85 and Two glue grooves 87.4-18 referring now to figure 1, the air bag distal end 121 is fixed on annular securing face 95, and the balloon proximal 123 is solid Described sleeve pipe 112 is scheduled on close to the position of proximal end, fixed position can be adjusted according to bladder shape and size in a certain range.Institute It states seal stock 203 and includes sheet material distal end 231 and sheet material proximal end 233 and the bodies 232 extended therebetween.With glue by piece Material proximal end 233 is fixed to the outside of valve seat 115, and not be bonded between side opening 115a and sheet material distal end；The bodies 232 and institute It states and is adhesively fixed with glue between the first glue groove 85 and the second glue groove 87, and do not glued between the bodies 232 and conduit trough 80 It connects；The sheet material distal end 231 is wrapped in the inside of the balloon proximal 123.Between the air bag 102 and described sleeve pipe 112 Connection and fixed form there are many kinds of.In this example, using 225 fixation balloon of the first binding circle distal end 121, pricked using second 224 fixation balloon proximal end 123 of coil, then fixed for partial aperture or junction gluing, it is further to ensure that air bag is fixed The air-tightness of related contact areas.The local appearance of the check valve assembly 104, seal stock 203, air bag 102 and casing 112 Face is substantially constituted comprising the air bag 102 that can swell, to the check valve assembly 104 of inflation/deflation and by 102 He of the air bag The second cavity 14 of the gas channel 14w of check valve unicom.Second cavity 14 is not connected to the first chamber 13.It is described Gas channel 14w includes air bag communicating portion 14d and check valve communicating portion 14f and intervenient conducting tube 14e, institute State conducting tube 14e include by be arranged the outer surfaces the tube wall 112b and by the axially extending conduit trough 80 of proximate with The seal stock 203 for being covered in tube wall 112b appearances is mutually bonded the hollow cavity of the enclosed type to be formed.The sheet material proximal end 233 with The side opening 115a cooperatively forms check valve communicating portion 14f；The balloon proximal 123 is coated on the sheet material proximal end 233 Outer surface forms air bag communicating portion 14d；The gap of the check valve communicating portion 14f and air bag communicating portion 14d use glue Water-stop.

Referring now to Fig. 5, Figure 10, Figure 20 and Figure 21, the check valve 104 includes bonnet 140, one-way plug one 145, spring 146 With valve seat 115.The bonnet 140 includes running through its stomata 141, forms the inner wall 144 and outer wall 143 of stomata 141.Institute State inner wall 144 and outer wall 143 and form annular groove, and the mounting hole 115b limited with valve seat 115 is matched, the mounting hole 115b in The side opening 115a unicom.The outer wall 143 includes elastic arm 142, and 142 distal end of the elastic arm is provided with limit hole 142a, The limited post 115c of its size and position and 115 outside of valve seat matches.When installing check valve 104, spring 146 is put first Enter in valve seat 115 and limited by the sink hole 115d of valve seat 115, is then charged into one-way plug one 145 and bonnet 140 is snapped into valve seat On 115, limited post 115c is entered in limit hole 142a after elastic arm 142 deforms, and compressed spring 146.Due to spring 146 One-way plug one 145 is pushed out and is withstood 140 inner wall 144 of bonnet by reaction force, is formed sealing and is fixed.

In a kind of implementation, it is inflated or deflates via the check valve 104 using standard syringe.Reference chart 18-19, wherein the stomata 141 is designed and sized to match with the shape and size of standard syringe point mouth.The stomata 141 distal end includes conical bore 141b, and the one-way plug one 145 is comprising the matched cone 145b of taper therewith and to distally The planar wall 145a extended to form.The planar wall 145a comprising air channel 145c and the cone 145b include a word or ten Word air channel 145d.Under natural conditions, the reaction force of spring 146 pushes out one-way plug one 145, the cone 145b and institute It states conical bore 141b to match to form sealing, prevents the gas leak in the second cavity 14.

As shown in figs. 22-24, the fixing sleeve component 105 includes fixed pad 150 and latch fitting 155.150 materials of the fixed pad Material is that flexible material includes but not limited to silica gel material, isoprene rubber, ethene-vinyl acetate copolymerization foam, sponge etc..It is described solid Determine the pad slot 152 of the hassock 151 that pad 150 includes its distal end, the thin pad 153 of proximal end, and connection hassock 151 and thin pad 153, institute It states hole 154 and runs through fixed pad 150, diameter is slightly smaller than the diameter of casing 112, can be nested on casing 112 by the extension that swells. The thickness and diameter of hassock 151 are all higher than thin pad 153.Hassock 151 is tightly attached to around the notch of stomach wall 50, is protected notch, is avoided Air pressure in stomach wall is leaked from incision site.A kind of optional technical solution, the possible thickness about 3.0-10.0 millimeters of hassock 151 Between, to promote the sealing function of fixed pad 150.155 material of the latch fitting includes have favorable elasticity elastic or semi-rigid Material is made.The latch fitting 155 includes latch fitting body 156 and handle 157 and position-limited edge that 156 both ends of latch fitting body are extended 159.The latch fitting body 156 curls into latch fitting hole 158 by prefabricated, and latch fitting 155 forms the coupling mechanism force of inward curl.Latch fitting body 156 inside crimp force staggeredly limits the handle 157 at 156 both ends of latch fitting body and position-limited edge 159, and two handles 157 interlock Form approximate V-type.By the way that two handles 157 of pressure or release will be pinched, latch fitting hole 158 can be expanded or shunk.Such as Figure 22-24, Latch fitting 155 is nested into the pad slot 152 of fixed pad 150, since latch fitting 155 forms the coupling mechanism force of inward curl, so in latch fitting Under 155 release conditions, by the fixed locking of pad 150, simultaneously device to hole 154 generates internal enclasping force to latch fitting 155.

Referring now to figure 1-24, second cavity 14 and fixing sleeve component 105 of first seal assembly 11 is described below Substantially assembling steps and method.Specifically, first conduit 103 is encased in the conduit trough 80 of casing 112, and it is remote along conduit trough 80 Conduit 103 is proximally pushed into valve seat 115 by end, then will pinch handle hand 157, and 105 entirety of fixing sleeve component is nested into Unclamp handle 157 behind the about centre position of casing 112, and the hassock 151 of fixed pad 150 is towards 112 distal end of casing, thin pad 153 Towards 112 proximal end of casing, in actual use, can according to different patient's thickness of abdominal wall difference, adjust fixing sleeve component 105 with Sheath assembly 10 is fixed on stomach wall by the air bag 102 after inflation.Air bag 102 is installed to 112 distal end of casing, air bag 102 again Fixing means stated above, this will not be repeated here.Finally by the spring 146 of check valve 104, one-way plug one 145 and bonnet 140 It is sequentially loaded into valve seat 115.The finally fixed position in conduit 103 with valve seat 115 and with balloon proximal 123, Ke Yitong It crosses viscose glue and is sealed gap, the further air-tightness for ensureing the second cavity 14.Fig. 1, Figure 10, Figure 11, Figure 20-21 are depicted The operation intake process of second cavity 14.Specifically, when Hasson technologies open using laparoscope, incision of abdominal wall is being completed And after plug-in-sleeve component 10, syringe SY oral areas are inserted into the stomata 141 of the check valve 104, and inwardly open-top list To plug 145, gas injection is then carried out.Gas is by the air channel 145c and air channel 145d of one-way plug one 145, then via bonnet The gap of 140 inner walls 144 enters in valve seat 115, and through sink hole 115d, side opening 115a, the entrance pneumatophore 102 of conduit 103 Interior, the pneumatophore 102 in stomach wall swells under the action of atmospheric pressure, and after taking out syringe SY, the bounce of spring 146 will be unidirectional Plug 145 pushes out, and the cone 145b and conical bore 141b matches to form sealing, and gas is avoided to leak.Then it pinches The handle 157 on 105 latch fitting 155 of fixing sleeve component is pressed, then adjusts the position of fixing sleeve component 105 to 112 far end party of casing To movement, the fixation pad 150 of pneumatophore 102 and fixing sleeve component 105 is made to be clamped respectively in the inner side and outer side of stomach wall, and Handle 157 is unclamped, realizes the fixation of sheath assembly 10.When operation is completed, and needs to take out sheath assembly 10, it is fixed that pressing can be pinched The handle 157 on 105 latch fitting 155 of component is covered, then moves the fixation pad 150 of fixing sleeve component 105 to 112 proximal direction of casing It is mobile, it is used in combination tool top pressure one-way plug one 145 to bleed off the gas in air bag 102, or using the gas in syringe SY extraction air bags 102 Body, waiting for after the gas in air bag 102 substantially discharges can be by sheath assembly 10 from intraperitoneal extraction.

In conclusion the sheath assembly in stationary state, with the casing section that contacts at incision of abdominal wall and mutually squeeze It includes near cylindrical that casing 112 and conduit 103 are formed to fall, since conduit 103 or seal stock 203 form air inlet and (put Gas) channel, described sleeve pipe 112 only has slight convex in the region containing air inlet (deflation) channel, compared to ordinary casing component Sleeve outer it is roughly the same, will not be additional extruding force is generated to incision of abdominal wall.Double-tube structure compared with the existing technology, The utility model is conducive to mitigate the extruding to the incision of abdominal wall of patient, expansion and damage, is conducive to mitigate patient's damage and patient Operative rehabilitation.Simultaneously because the balloon proximal 123 and balloon proximal 121 of pneumatophore 102 disclosed by the utility model are all very short, gas Capsule is easy to manufacture, and facilitates and realizes automatic continuous production and can easily be assembled on casing, greatly reduces Assembly difficulty, improves production efficiency, and larger reduces production cost.

The many different embodiments and example of the utility model are had shown and described.One of this field is common Technical staff, under the premise of not departing from the scope of the utility model, by it is suitably modified the method and instrument can be made it is suitable Answering property is improved.Several kinds of amendment schemes are referred, and for those skilled in the art, other amendment schemes are also can With what is expected.Therefore the scope of the utility model should according to accessory claim, while be understood not to by specification and The particular content of the structure that attached drawing shows and records, material or behavior is limited.

Claims (7)

1. a kind of puncture outfit casing tube component with air bag, including the first sealing group and the second seal assembly, first sealing group Part include lower housing and it is coupled and to distal end extend casing, described sleeve pipe include boot proximal end, proximal end with And the tube wall extended therebetween, the tube wall limit the instrument channel through boot proximal end and proximal end, it is characterised in that：

1) outer surface of described sleeve pipe distal end includes lip region and the stepped area that is attached thereto, and the lip region is from distal end to close Axially extending and lateral dimension is held gradually to increase, the stepped area includes annular joint face with first diameter and with the The annular securing face of two diameters and the cliff face extended therebetween, and the first diameter is more than second diameter；

2) described sleeve pipe component also includes the inflatable air bag to swell, to the check valve assembly of inflation/deflation and by the air bag With the gas channel of check valve unicom；

3) air bag includes balloon proximal and air bag distal end and the pneumatophore that extends therebetween, and the first retainer plate is by the gas Capsule distal end is fixed on the annular securing face for closing on cliff face, and the outer surface that first retainer plate is formed has third diameter, The third diameter is not more than first diameter；The balloon proximal is fixed on described sleeve pipe closer to the set by the second retainer plate On the outer surface of the tube wall of pipe proximal end；

4) gas channel includes air bag communicating portion and check valve communicating portion and intervenient conducting tube, described It includes by being arranged in the tube wall appearance that conducting tube, which includes independently of the hollow conduit of the tube wall or the conducting tube, Face is simultaneously mutually bonded the closing formed by the axially extending conduit trough of proximate with the seal stock for being covered in tube wall appearance The hollow cavity of type.

2. puncture outfit casing tube component as described in claim 1, first retainer plate includes the first binding circle, and described second is solid Fixed circle includes the second binding circle.

3. puncture outfit casing tube component as described in claim 1, it is characterised in that：The conduit includes made of metal Metal catheter, the metal catheter include distal end of catheter and catheter proximal end and through the hollow of the catheter proximal end and distal end of catheter Conduit；The check valve assembly includes the side opening to match with the catheter proximal end, and the catheter proximal end coordinates with the side opening Form check valve communicating portion；The balloon proximal is coated on the outer surface of the distal end of catheter and uses second retainer plate Fixation forms air bag communicating portion；The gap of the check valve communicating portion and air bag communicating portion uses glue sealing.

4. puncture outfit casing tube component as claimed in claim 3, it is characterised in that：It is provided with along conduit trough both sides axially extending Local crowning, the maximum height of the protrusion tube wall of the local crowning are not more than the diameter of the metal catheter.

5. puncture outfit casing tube component as claimed in claim 3, it is characterised in that：The outer diameter of the metal catheter is not more than 1mm, Its internal diameter is not less than 0.4mm.

6. puncture outfit casing tube component as described in claim 1, it is characterised in that：The check valve assembly includes bonnet, limit Block and spring, bonnet are flexibly connected with limited block, and so that limited block is withstood bonnet by compressed spring.

7. puncture outfit casing tube component as described in claim 1, it is characterised in that：Described sleeve pipe component further includes fixing sleeve group Part, the fixing sleeve component include fixed pad and latch fitting, and the fixed pad includes the hassock of its distal end, the thin pad of proximal end, and The pad slot of hassock and thin pad is connected, the latch fitting includes that there is the latch fitting body of interior curling coupling mechanism force and latch fitting body both ends to extend The handle and position-limited edge gone out, the latch fitting are locked pad by being inserted in the latch fitting body of pad slot.