The support inserting device tool of duodenal stentPresent patent application " the support inserting device tool of duodenal stent " is the applying date to be：2015-06-03, applicationNumber it is：201510298007.0 it is with invention and created name：Duodenal stent, preparation method, mould and support inserting device toolWith the divisional application of binding method.
Technical field
The present invention relates to the technical field of medical apparatus and instruments, more particularly to a kind of duodenal stent, preparation method and supportInsertion instrument and support fixing meanss.
Background technology
At present, the duodenal stent of proposition is substantially made up of two parts, the hardware for playing the role of positioning and rise everyFrom effect（Isolation chyme and Digestive system）Sleeve pipe.Duodenal stent proposed by the present invention is as shown in figure 1, be also by fixtureConstitute with sleeve pipe.Compared with the quoit positioning action with metal ring or ellipse of existing proposition, the present invention devises wineCup shaped metal network is shown in Fig. 4 as align member, and it can not only reliably be positioned, also with sealing function, and to deep and remoteThe contractile function of door is substantially free of impact.Cup body and the clamping action at cup bottom, realize reliable positioning action；Cup feather edge toCup body tilts the design of outer rim 45 and macromolecular material shirt rim 3 thereon, makes it fit tightly with the prepyloric region of stomach, in case foodGruel is leak into outside the sleeve pipe of duodenal stent；The design of wineglass cup handle, is allowed at the pylorus of stomach；And the appropriate spiral of cup handleThe selection of line helical pitch, have adjusted the radial support power of glass handle, so as to the impact to the contractile function of pylorus is minimized.12 refer toIntestinal ceca frame has the sleeve pipe of a longer macromolecular material, not only long but also soft sleeve pipe inserts human body alimentary canal, greatly increasesWhole support has been added to insert the difficulty of operation and insert the complexity of apparatus.The present invention designs single line or the binding of two-wire two ends is defeatedSend method, single line or two-wire axial direction intussusception binding conveying method and single line or two-wire axially to fold binding conveying method, not only insert apparatusSimply, and processing ease.Thus, whether duodenal stent or apparatus is inserted accordingly, it is characteristic of the invention that simpleSingle, reliability and practicality.
The content of the invention
The present invention provides a kind of duodenal stent with positioning and fastening function, preparation method, mould and props up and mountsEnter apparatus and binding method, can effectively block small intestinal and food is digested and assimilated, and the absorption of sugared part is reduced from source.
The present invention is adopted the following technical scheme that：
A kind of duodenal stent of the present invention, including wine cup shape metal net support, in wine cup shape metal net supportOn be connected with macromolecular material sleeve pipe.
A kind of preparation method of duodenal stent of the present invention, comprises the following steps：
Step 1 prepares circular metal webmaster
Step 1.1, takes an one metal wire, and the axial direction that tinsel is turned to into the first section spiral line and first section spiral line is longDegree is corresponding with the cup bottom disk radial dimension of wine cup shape network, plus large pitch and continues around and make the second section spiral line,The axial length of the second section spiral line is highly corresponding with the cup handle of wine cup shape network, reduces helical pitch and continues coiling the 3rdSection spiral line, the length of the 3rd section spiral line is highly corresponding with the cup body of wine cup shape network,
Step 1.2 the 3rd section spiral line described in step 1.1 ends bent tinsel, and by tinsel towards initiating terminal afterThe length of the section spiral line of continuous coiling the 4th and the 4th section spiral line is highly corresponding with the cup body of wine cup shape network, instituteState the 4th section spiral line and intersect to form cup body cross point with the 3rd section spiral line, constitute two cup body cross points of arbitrary neighborhoodIn a cup body cross point the 4th section spiral line from the 3rd section spiral line lower section pass through, constitute two cups of arbitrary neighborhood4th section spiral line in another cup body cross point in body cross point is passed through from the 3rd section spiral line top and pressed through；
Plus large pitch and the then section spiral line of coiling the 5th, the axial length of the 5th section spiral line and the cup of wine cup shape networkHandle is highly corresponding, and the 5th section spiral line intersects to form a glass handle cross point with second section spiral line, constitutes any phase5th section spiral line in a cup handle cross point in adjacent two cup handle cross points is passed through from second section spiral line lower section, structureThe 5th section spiral line into another glass of handle cross point in two cup handle cross points of arbitrary neighborhood is from second section spiral lineTop passes through and presses through；
Reduce helical pitch and the then section spiral line of coiling the 6th, the axial length of the 6th section spiral line and the cup of wine cup shape networkThe radial dimension of bottom disk is corresponding, and the 6th section spiral line intersects to form a glass bottom cross point with first section spiral line,6th section spiral line in the cup bottom cross point in composition two cup bottoms of arbitrary neighborhood cross point is from first section spiral lineLower section passes through, and constitutes the 6th section spiral line in another glass of bottom cross point in the cross point of two cup bottoms of arbitrary neighborhood from described theOne section spiral line top passes through and presses through；
Step 1.3 the 6th section spiral line described in step 1.2 ends bent tinsel, and repeat step 1.1 and step 1.2Until forming circular metal webmaster；
Step 2 carries out setting treatment to circular metal webmaster
Circular metal webmaster is enclosed within the shaping mould of wine glass-shaped, the wine glass-shaped and size with design is allowed to, then will20 ~ 50 minutes in 420 ~ 510 DEG C of temperature environments, then wine cup shape metal webmaster is placed in together with the shaping mould of wine glass-shapedWater-cooled, unloads shaping mould, obtains wine cup shape network；
Step 3 obtains duodenal stent in wine cup shape network upper joint sleeve pipe.
A kind of mould for the preparation method of the present invention, including：Bolt, is arranged with successively on boltOne round core pipe, the second round core pipe and the 3rd round core pipe and by be located at bolt two ends nut fasten, the first round core pipe, second circleCore pipe and the 3rd round core pipe are provided with spiral groove, and the spiral groove starts from the outer end of the first round core pipe, extend toThe outer end of three round core pipes is turned back and is converted into reverse acting spiral connected in star, extends to the outer end of the first round core pipe, is extended repeatedly with thisUntil spiral groove net is formed, and the lead of screw of the spiral groove on the second round core pipe is more than the first round core pipeWith the 3rd round core pipe, the length of the first round core pipe is corresponding with the cup bottom disk radial dimension of wine cup shape network, andThe length of two round core pipes is highly corresponding with the cup handle of wine cup shape network, length and netted of the wine cup shape of the 3rd round core pipeThe cup body of frame is highly corresponding.
A kind of support inserting device tool of duodenal stent of the present invention, including：Core pipe and core pipe are used to carry instituteDuodenal stent is stated, the first binding line passage and first support binding linear window is provided with the core pipe wall of core pipe, firstThe first lashing wire for tying up the duodenal stent for fixation is provided with binding line passage.
A kind of binding method that duodenal stent is fixed on support inserting device tool of the present invention, by duodenumSupport casing being provided with the support inserting device tool of lashing wire, then with duodenal stent binding method by duodenal stentIt is bundled on support inserting device tool, described duodenal stent binding method is comprised the following steps：
Step A：By lashing wire is around lopping and the distal end of lashing wire is crushed on the lower section of lashing wire, then by lashing wire in duodenumThe external rings of support are around then by the near-end of lashing wire through wearing again further around a ring and by the near-end of lashing wire after the circleThe circle is crossed, while by the ring as secondary new ring,
Step B：Lashing wire is surround again in the outside of duodenal stent, then by the near-end of lashing wire through described timeDescribed new ring is again passed through further around a new ring and by the near-end of lashing wire after new ring,
Step C：The new ring that step B is obtained enters step D as secondary new ring, return to step B after a string of rings are formed,
Step D：Last new ring is pushed down with press strip, then by lashing wire through binding line passage and from support inserting device toolAfterbody is passed.
Compared with prior art, the invention has the advantages that：
（1）Effectively blocking small intestinal of the invention is digested and assimilated to food, closely, is snugly contacted with gastric mucosa, and can be keptThe contractile function of pylorus.
The duodenal stent of the present invention is inserted in harmonization of the stomach duodenum, with reference to Fig. 7, originates in the pylorus 4 of stomach 100, is coveredThe part duodenum section that is connected with pylorus 4 of lid or whole duodenum section 101, be with wine cup shape network and sleeve pipe,Particularly implement to intercept with sleeve pipe, the digest of gastric --- chyme when duodenum, only part or completely not with tenTwo duodenum 12 inwalls are contacted, and so as to reducing or even excluding duodenal digestion and Absorption completely, effectively blocking small intestinal is to foodThing is digested and assimilated, and the absorption of sugared part is reduced from source.
Duodenal stent is in close contact with the gastric mucosa at stomach pylorus so that diabetes involving middle-JIAO compound（Food）It is substantially all and passes throughSupport to duodenum or jejunum are discharged.During duodenal stent setting treatment, certain elastic force is produced, make duodenal branchessThe near-end cup bottom disk of frame closely, is snugly gently pressed on the mucosa of stomach.To realize above-mentioned functions, metal rack is designed toGoblet shape, cup bottom disk is the near-end of support（It is so-called proximally and distally, for being relative operator：One device is near operationOne end of person is near-end, is distal end away from the other end of operator）Be placed in gastric, in order that its with gastric mucosa closely, it is docileGround contact, cup bottom disk outer rim is upwards（To cup body direction）Tilt slightly and form bending edge 45, and cup bottom disk connects with gastric mucosaThere is the shirt rim 3 that a floor height molecular film is constituted tactile side, and this floor height molecular film extends to cup body along cup handle, refers to 12Intestinal sleeve pipe is connected.
The cup handle of wine cup shape network is just placed at pylorus, and cup handle length is corresponding with the width of pylorus, cup handle goldThe helical pitch of category stent helix line is relatively large, thus, the radial support power of cup handle is less, that is to say, that cup shank metal rack pairThe radial support effect very little of pylorus, so that pylorus remains in that its contractile function, the impact to pylorus physiological function is significantReduce.Cup body is the distal end of metal rack, then be placed in duodenal bulb, is on the one hand in close contact with pyloric cap,Another aspect cup body is high with the bond strength of macromolecular material sleeve pipe.Macromolecule membrane on metal rack can also do with sleeve pipeIntegral formula.
（2）The effect of the duodenal stent preparation method of the present invention and effect are as follows：
According to the winding method coiling of circular metal webmaster of the present invention, two groups of helixes can be formed, one of which be it is left-handed, it is anotherGroup is dextrorotation, and two groups of helix mutually activities intersect, and constitute many little networks.Exactly, adjacent two left-turn spiralsLine and adjacent two right-hand helixs intersect, and constitute little network unit, and whole circular metal webmaster is completely by thisA little little network units are constituted.The one group of network unit for along the circumferential direction arranging, its summit respectively be located at three thatOn this adjacent circumference, the end that each section of Stent assembling die is also all located at the intersection of this two groups of left-right rotary helixesOn the constituted circumference of point, Fig. 6 is seen.Different helical pitch λ of each section of employing of metal net support, make proximal segment disk have it is highCounter-bending elasticity, stage casing has relatively low radial support power, and distal ports have higher radial support power, thus, distal ports cupThe lead of helix of body is minimum, and the helical pitch of interlude cup shank is maximum, and the helical pitch at proximal segment cup bottom is placed in the middle.
According to the circular metal webmaster of winding method coiling of the present invention, helix does not repeat.
According to the circular metal webmaster of winding method coiling of the present invention, the mutually activity of its two groups of helixes intersects.
When a left-handed or right-hand helix, when intersecting with another group of dextrorotation or left-handed parallel helix, along thisRoot is left-handed or right-hand helix on adjacent cross point, this left-handed or right-hand helix is in another group of dextrorotation or left-handed parallelIt is alternate that helix is upper and the next, that is to say, that as this root is left-handed or right-hand helix is in a cross pointWhen face is by another group of dextrorotation or left-handed parallel helix, then when by next cross point, in another group of dextrorotation or left-handedBelow parallel helix, with reference to Fig. 5.In these cross points, two Ni-Ti shape-memory alloy wires of difference trend are only mutualIntersect, when support deforms, this two silks can produce relative displacement, thus, these cross points are all slip-knot points.CompileWhen casting off into, two terminations of this root Ni-Ti shape-memory alloy wires will overlap, and position is typically answered in the position that termination overlapsIn the middle part of support.
After the setting treatment of support, support has the function of memory finished product support shape and size, i.e., when support is in aboutWhen pencil state or compressive state, it has self-expanding ability.
（3）The present invention has the advantage that for the mould for preparing circular metal webmaster：
Using the combined knitting mould of the segmentation shown in Fig. 6, when the head number of helix is identical, each section die as needed can be withDifferent helical pitches are chosen, thus, each section of support for knitting out has different size of network, also just has different mechanicsPerformance：Each section of support has different radial support power and different axial bending strengths.
（4）The support inserting device tool of the present invention conveniently, can be realized back reliably after duodenal stent is inserted and finishedRemove.
Raidal drainage hole 88 is machined with the main chamber 84 of core pipe, Fig. 8 is seen, to recall during support inserting device tool, from handleLiquid injection hole injects distilled water, flows into the gap between rack sleeve and support inserting device tool, when distilled water is injected, while withdraw propping upMount into apparatus, side left rotation and right rotation support inserting device tool, in case the sleeve pipe of support is wrapped on support inserting device tool, affect supportInsert apparatus to exit from rack sleeve.
（5）The binding method of duodenal stent of the present invention
Support mode of movement bundlees method for releasing using support, first whole duodenal stent is equably enclosed within into support and is insertedOn apparatus, then proximally and distally the bundling duodenal stent with lashing wire, make duodenal stent be fixed on conveying dressPut.After support inserting device tool is inserted in place together with support, pull support inserting device tool afterbody is lashing wire, you can break ropeKnot, discharges support.Pull lashing wire is broken the principle of knot and sees Figure 15.
When support is installed, by support casing in the core pipe for inserting apparatus, the distal end of rack sleeve is close to the near-end of soft head.During binding, the two ends of duodenal stent are only bundled, i.e., only support is bundled proximally and distally, at the rack sleeve of remainderIn nonbinding state.The effect of rack far end binding is the position for fixing duodenal stent sleeve pipe on apparatus is inserted, and is preventedSleeve pipe slides on apparatus core pipe is inserted, thus, the number of turns of lashing wire is as few as possible, usual 1 ~ 5 circle；And mount proximal end is tiedThe effect tied up, is not only fixed support and inserts the relative position of apparatus, and wire netting pipe holder is snugly bundled,It is easy to insert apparatus insertion digestive tract.Now, bundle the number of turns more, bundle the table that coil is evenly distributed in wire netting pipe holderOn face.Duodenal stent is bundled in the distal end for inserting apparatus, the lashing wire of rack far end --- first support lashing wire 87, JingBy the first support binding line passage 851 in core pipe, from the first support of core pipe distal end linear window is bundled（82）Pass, by Figure 13Binding method, the distal end of rack sleeve binding 1 ~ 5 is enclosed, knot breaks order for from the close-by examples to those far off；The binding of mount proximal endLine --- second support lashing wire 86, bundlees line passage 852, by second support lashing wire in core pipe via the second support of core pipeWindow（83）Pass, bundled the near-end of support with same binding method, it is ensured that metal base portion is docile to be bundled inInsert on apparatus, and the order of breaking of knot is then to draw near.The tail end of first and second lashing wire is by the handle tail for inserting apparatusPipe is passed, and during release support, first pull second support lashing wire discharges the near-end of support；Work as mount proximal end --- metal rackPart position it is appropriate after, then pull first support lashing wire discharges the distal end of support.This binding method is referred to as two-wire by usTwo ends bundle method, and Figure 13 is seen in position of the duodenal stent on apparatus is inserted.
In order to shorten coated length of the support on support inserting device tool, longer sleeve pipe can be using axial intussusception or axleMethod to folding, is shown in Figure 15 and Figure 16.It is also support when sleeve pipe is using axial intussusception or the mode of movement for axially foldingProximally and distally bundle respectively, equally only binding 1～5 is enclosed for distal end, but the binding number of turns of near-end should be by after axial intussusception or foldingSupport tied line to bundle completely, it is ensured that whole duodenal stent is snugly coated on a conveyor, Bu HuiyingRing the insertion human body alimentary canal of the conveyer device with duodenal stent.It is bundled in again after sleeve pipe axial direction intussusception or axially folding defeatedThe mode of movement on device is sent, two-wire axial direction intussusception binding conveying method is referred to as and two-wire is axially folded binding conveying method.ThisThe binding order and release order of two kinds of binding carrying method supports is identical with two-wire two ends binding method.
The two ends binding of duodenal stent can also be realized with a lashing wire.Now, the core pipe of inserter is using doubleLumen, is shown in Figure 10, and lashing wire 87 is released the distal end of binding duodenal stent by the first binding linear window 82, lashing wire again bySecond binding linear window is extracted out, bundlees the near-end of duodenal stent, and near-end binding finishes rear lashing wire and penetrates the second binding againLinear window, the secondary chamber 851 of Jing core pipes 8 is passed by the tail pipe 94 of handle.
Description of the drawings
Fig. 1 is the structural representation of duodenal stent of the present invention, 1-wine cup shape metal net support in figure, 2-high scoreSub- material bushing.
Fig. 2 is the close-up schematic view of duodenal stent of the present invention, show duodenal stent with it is gastropyloricMutual relation, 1-wine cup shape metal net support in figure, 2-sleeve pipe, 4-stomach pylorus.
Fig. 3 is the local B enlarged diagrams of duodenal stent of the present invention, shows the close of metal rack near-end cup bottom diskEnvelope is acted on.In figure, 3-shirt rim, 4-stomach pylorus, the bending edge of 45-cup bottom disk.
Fig. 4 is wine cup shape network structural representation of the present invention.
Fig. 5 is wine cup shape network local A structural representations of the present invention, i.e. the enlarged drawing of local A in Fig. 4 shows and props upThe feature of frame braiding structure.
Fig. 6 is the combined knitting die structure dwg of the present invention.In figure, the cylindrical mold at 61-braiding cup bottom, 62-The cylinder mould of braiding cup handle, the cylinder mould of 63-braiding cup body, 64-pad, 65-bolt, 66-nut.
Fig. 7 is the position that duodenal stent is inserted after body cavities, 1-wine cup shape metal net support in figure, 2-highMolecular material sleeve pipe, 4-pylorus, 100-stomach, 101-duodenum.
Fig. 8 is the glass mold that the present invention manufactures macromolecular material sleeve pipe, and metal net support is enclosed within glass mold, JingExtraction and subsequent sulfuration in macromolecular material emulsion, form the sleeve pipe integrated with the thin film on wire netting pipe holder.FigureIn, 1-wire netting pipe holder, 2-sleeve pipe, 5-glass mold.
Fig. 9 is one embodiment structure chart of support inserting device tool of the present invention --- the binding of the lumen of duodenal stent three is putEnter apparatus, in figure, 81-soft head, 82-first support binding linear window, 83-second support binding linear window, 851-the firstBinding line passage, the 852-the second binding line passage, the 86-the second lashing wire, the 87-the first lashing wire, 9-handle, 91-RuleJoint, 92-closure, the 94-the first tail pipe, the 95-the second tail pipe.
Figure 10 is the enlarged drawing of Fig. 9 core pipe C-C sections, shows the architectural feature of three lumens, in figure, 84-core pipe main chamber,851-the first binding line passage（Core pipe pair chamber）, the 852-the second binding line passage（Core pipe pair chamber）.
Figure 11 is the enlarged drawing of Fig. 9 core pipe D-D sections, in figure, 84 --- and three lumen main chambers, 851 --- three lumens pair chamber（First binding line passage）, 88 --- outage.
Figure 12 is structure chart --- the duodenal stent two-chamber of another embodiment of the support inserting device tool of the present inventionApparatus is inserted in binding.
Figure 13 is the enlarged drawing of F-F sections on Figure 12.
Figure 14 is binding position view of the duodenal stent of the present invention on apparatus is inserted.
Figure 15 is the schematic diagram that pull lashing wire breaks knot, in figure, 7-line ball circle, and 71-fake, 72-secondaryFake, 8-core pipe.
Figure 16 is duodenal stent sleeve pipe axial direction of the present invention intussusception schematic diagram.
Figure 17 is that duodenal stent sleeve pipe of the present invention axially folds schematic diagram.
Specific embodiment
Embodiment 1- duodenal stent
With reference to Fig. 1, a kind of duodenal stent, including wine cup shape network 1 are connected with set on wine cup shape network 1Pipe 2, the wine cup shape network 1 includes cup bottom 41, cup body 43 and the cup handle 42 for connecting cup bottom, cup body, with reference to Fig. 3 andFig. 4, the cup feather edge tilts and is formed bending edge 45 to cup body, and the wine cup shape network 1 is by left-hand screw wire shapedWire and constitute in the nemaline wire interlacing of right-hand screw, generally, wire adopts Ni-TiShape-memory alloy wire, with reference to Fig. 2, constitutes the lead of helix of wire of cup handle portion more than composition cup bottom and cup bodyThe helix of partial wire is led, also, constitute cup handle portion wire the lead of helix be 60 ~145mm, the lead of helix for constituting the wire of bottom of the cup is 55 ~ 100mm, constitutes the wire of cup body partThe lead of helix be 40 ~ 85mm so that the cup handle 42 of wine cup shape network 1 have elastic deformability, reference picture4, be coated with macromolecular material shirt rim 3 on wine cup shape network 1, the shirt rim 3 from cup bottom extend to cup body and with it is describedSleeve pipe 2 connects.
The preparation method of embodiment 2- duodenal stent
A kind of preparation method of duodenal stent, comprises the following steps：
Step 1 prepares circular metal webmaster
Tinsel is turned to the first section spiral line and the first paragraph by step 1.1 on the combined knitting mould shown in Fig. 6The length of helix is corresponding with the radial dimension of the cup bottom disk of wine cup shape network, plus large pitch and continues coiling secondSection spiral line, the length of the second section spiral line is highly corresponding with the cup handle of wine cup shape network, reduces helical pitch and continues aroundThe 3rd section spiral line is made, the length of the 3rd section spiral line is highly corresponding with the cup body of wine cup shape network,
Step 1.2 the 3rd section spiral line described in step 1.1 ends bent tinsel, and by tinsel towards initiating terminal afterThe section spiral line of continuous coiling the 4th, and the length of the 4th section spiral line is highly corresponding with the cup body of wine cup shape network,4th section spiral line intersects to form cup body cross point with the 3rd section spiral line, constitutes two cup bodies of arbitrary neighborhood and intersects4th section spiral line in a cup body cross point in point is passed through from the 3rd section spiral line lower section, constitutes arbitrary neighborhood two4th section spiral line in another cup body cross point in cup body cross point is passed through from the 3rd section spiral line top and pressed through；
Plus large pitch and the then section spiral line of coiling the 5th, the length of the 5th section spiral line is high with the cup handle of wine cup shape networkDegree is corresponding, and the 5th section spiral line intersects to form a glass handle cross point with second section spiral line, constitutes arbitrary neighborhood two5th section spiral line in a cup handle cross point in individual cup handle cross point is passed through from second section spiral line lower section, is constituted and is appointed5th section spiral line in another glass of handle cross point anticipated in two neighboring cup handle cross point is from second section spiral line topThrough pressing through；
Reduce helical pitch and the then section spiral line of coiling the 6th, the length of the 6th section spiral line is justified with the cup bottom of wine cup shape networkDisk radial dimension is corresponding, and the 6th section spiral line intersects to form a glass bottom cross point with first section spiral line, constitutes and appointsAnticipate the cup bottom cross point in the cross point of two neighboring cup bottom the 6th section spiral line from first section spiral line lower section wearCross, the 6th section spiral line in another glass of bottom cross point in composition two cup bottoms of arbitrary neighborhood cross point is from the first paragraph spiral shellSpin line top passes through and presses through；
Step 1.3 the 6th section spiral line described in step 1.2 ends bent tinsel, and repeat step 1.1 and step 1.2Until forming circular metal webmaster；
It should be noted that the present invention is during helix winding, helix Jing after bending, will coiling helix rotation directionIt is oppositely oriented with the helix before bending, so, complete circular metal webmaster can be turned to by an one metal wire.
Step 2 carries out setting treatment to circular metal webmaster
Circular metal webmaster is enclosed within the shaping mould of wine glass-shaped, and guarantees that metal webmaster is docile and be bundled in shaping mouldOn, the shape and size with wine cup shape metal rack.Then, they are placed in together in 420 ~ 510 DEG C of temperature environments and are incubated20 ~ 50 minutes.Water-cooled after insulation, unloads shaping mould, has just obtained wine cup shape network.The present embodiment specifically can be selectedBe placed in 50 minutes in 420 DEG C of temperature environments, in 450 DEG C of temperature environments 40 minutes or 510 DEG C of temperature environments in 20 minutes；
Step 3 obtains duodenal stent in wine cup shape network upper joint sleeve pipe；Connect on wine cup shape networkCasing methods can have various, and the present embodiment can specifically using one of following two methods：
Method one：It is in the method for wine cup shape network upper joint sleeve pipe：The sleeve pipe of shaping is bonded in into wineglass with adhesiveOn shape network.
Method two：It is in the method for wine cup shape network upper joint sleeve pipe：Referring to Fig. 8, by wine cup shape network（1）It is enclosed within tubular mould 5, then will be cased with the tubular mould of wine cup shape network immersion macromolecular material emulsion, will coversThe tubular mould for having wine cup shape network lifts out macromolecular material emulsion, in wine cup shape network and tubular mouldThe upper thin film for forming a floor height molecular material, Jing after 160 ~ 220 DEG C, the vulcanizing treatment of 30 ~ 60 minutes, in wine cup shape networkOn 1 and the macromolecule material film being integrated altogether is formed on tubular mould 5, and in wine cup shape network cup bottom bending edgeUpper formation shirt rim 3, last removal tubular mould, the material of tubular mould generally selects glass.
Embodiment 3- is used for the mould of coiling circular metal webmaster
A kind of mould for duodenal stent preparation method, including：Bolt 65, is arranged with successively braiding cup on bolt 65Round-ended cylinder shape mould 61, braiding cup handle cylindrical mold 62 and braiding cup body cylindrical mold 63, and by being located at the two ends of bolt 65Nut 66 fasten, in braiding cup round-ended cylinder shape mould 61, braiding cup handle cylindrical mold 62 and braiding cup body cylindrical mold63, spiral groove is provided with, the spiral groove starts from the outer end of braiding cup round-ended cylinder shape mould 61, extends to braiding cupThe outer end of body cylindrical mold 63, turns back and is converted into reverse acting spiral connected in star, extends to braiding cup round-ended cylinder shape mould 61Outer end, extends up to form spiral groove net, and the spiral type in braiding cup handle cylindrical mold 62 repeatedly with thisThe lead of helix of groove is more than braiding cup round-ended cylinder shape mould 61 and the helical pitch of braiding cup body cylindrical mold 63, the braidingThe length of cup round-ended cylinder shape mould 61 is corresponding with the cup bottom disk radial dimension of wine cup shape network, weaves cup handle cylindrical shapeThe length of mould 62 is highly corresponding with the cup handle of wine cup shape network, weaves the length and wineglass of cup body cylindrical mold 63The cup body of shape network is highly corresponding.
Embodiment 4- support inserting device tool
Support inserting device tool of the present invention is the apparatus of inserting for conveying duodenal stent, and support of the present invention is insertedApparatus can respectively bundle duodenal stent proximally and distally using a lashing wire, and now, the core pipe for inserting apparatus is adoptedThe main chamber of double lumen tube, i.e., one 84 and a secondary chamber are a binding line passage, and such as first bundlees line passage 851.Below with oneRoot lashing wire carries out being illustrated as a example by the binding of two ends by a binding line passage to duodenal stent：
Embodiment 4.1
A kind of support inserting device tool of duodenal stent, referring to Figure 12, including：Core pipe 8 and core pipe 8 are used to carry described 12Duodenum 12 support, is provided with the first binding line passage 851 and first support binding linear window 82, in the first bundle on the tube wall of core pipe 8The first lashing wire 87 for tying up the duodenal stent for fixation is provided with wiring passage 851, on the core pipe wall of core pipe 8Raidal drainage hole 88 is provided with, and the raidal drainage hole 88 connects with the main chamber 84 of core pipe.
In the present embodiment, another support binding linear window 83 is opened up in the first binding line passage 851 of core pipe 8,After then the binding of duodenal stent distal end being carried out at first support binding linear window 82 using the first lashing wire 87, thenThe near-end binding of duodenal stent is carried out at the second support binding linear window 83.
Embodiment 4.2
A kind of support inserting device tool of duodenal stent, referring to Fig. 9, including：Core pipe 8 and core pipe 8 are used to carry described 12Duodenum 12 support, is provided with the first binding line passage 851 and first support binding linear window 82, first on the core pipe wall of core pipe 8The first lashing wire 87 for tying up the duodenal stent for fixation is provided with binding line passage 851, in the core pipe wall of core pipe 8Raidal drainage hole 88 is provided with, and the raidal drainage hole 88 connects with the main chamber of core pipe, the first support bundlees linear window82 distal ends for being located at the core pipe 8, are additionally provided with the second binding line passage 852 and second support binding on the core pipe wall of core pipe 8Linear window 83, and second support binding linear window 83, relative to first support binding linear window 82 its near-end Side is located at,The second lashing wire 86 for tying up the duodenal stent for fixation is provided with second binding line passage 852.
Soft 81 is provided with the distal tip of core pipe 8, in the near-end afterbody of core pipe 8 handle 9 is connected with, the handle 9 is wrappedInclude supervisor 93, the first tail pipe 94 and the second tail pipe 95, handle supervisor 93 and the main chamber 84 of the core pipe of core pipe 8 and secondary chamber 851,852Communicate, the first tail pipe 94 with first binding line passage 851 be connected, and first lashing wire 87 pass through the first tail pipe 94, secondTail pipe 95 is connected with the second binding line passage 852, and second lashing wire 86 passes through the second tail pipe 95, in the He of the first tail pipe 94The end of the second tail pipe 95 is respectively equipped with female Luer 91, and in female Luer 91 closure 92 is provided with.
Embodiment 5
A kind of binding method being fixed on duodenal stent on support inserting device tool, duodenal stent is enclosed within and is arrangedOn the support inserting device tool of lashing wire, then duodenal stent is bundled in into support with duodenal stent binding method insertsOn apparatus, described duodenal stent binding method is comprised the following steps：
Step A：The distal end that lashing wire is coiled into a fake 71 and lashing wire is crushed on into the lower section of lashing wire, then lashing wire is existedThe external rings of duodenal stent are around then by the near-end of lashing wire through further around a ring being secondary fake 72 after the fakeAnd the near-end of lashing wire is again passed through into a fake 71, while by the secondary fake 72 as secondary new fake,
Step B：Lashing wire is surround again outside duodenal stent, it is then that the near-end of lashing wire is new through described timeDescribed new fake is again passed through further around a new ring and by the near-end of lashing wire after fake,
Step C：The new fake that step B is obtained enters step D as secondary new fake, return to step B after a string of rings are formed,
Step D：Last new fake is pushed down with line ball circle 7, then lashing wire is inserted through binding line passage and from supportThe afterbody of apparatus is passed.
In the present embodiment, in order to shorten binding length of the duodenal stent on apparatus is inserted, in duodenal branchessBefore frame binding, axial intussusception is carried out to the sleeve pipe of duodenal stent or is axially folded, axial intussusception or the axially mode of foldingAs shown in FIG. 16 and 17.The core pipe of inserter can be using two-chamber or three lumens, respectively with single line or two-wire to duodenal stentBundled, this is single line or two-wire axial direction intussusception binding mode of movement and single line or two-wire axially folds binding conveying sideFormula, this kind of binding mode still bundlees duodenal stent proximally and distally respectively, but the scope of near-end binding coil will be coveredSupport remainder of the lid in addition to tied distal end.
Binding method of the present invention is in order at the purpose for conveniently inserting the duodenal stent with long and soft sleeve pipe,This binding method stays in support after duodenal stent to be bundled in be placed in place on support inserting device tool by pullInsert the lashing wire of apparatus afterbody, you can realize the dismounting of lashing wire, duodenal stent departs from immediately support inserting device tool.
Below more detailed description is made to the real-time mode of the present invention：
The metal base portion of duodenal stent is closed with the mm NiTi shape memories of φ 0.16 containing 54.5 ~ 57.0 wt %NiSpun gold material weaves, and sleeve pipe macromolecular material selects medical polyurethane.The length of whole support is 450mm.Wherein metal rackLength L=48, cup body length L1=20 of metal rack, cup handle length L2=10, cup bottom length L3=7, cup body, cup handle and cup bottomThe diameter of three parts is respectively φ 1=25, φ 2=15 and φ 3=35.From a diameter of φ 20 three sections of assembling dies as braidingMould, the head number of each section of upper left-right rotary helix is identical, is 18, and helical pitch is different, the helical pitch of three parts is respectively 68,116 and 36mm, it is corresponding with cup bottom, cup handle and cup body respectively.Woven webmaster blank is banded on shaping mould, shaping mouldWebmaster blank is strutted, it is ensured that metal rack shape and size reach the contour shape and size of design.By shaping mould together withThe wire netting pipe holder blank tied up is put into together in the cabinet-type electric furnace that furnace temperature is 500 ± 5 DEG C, and the insulation 30 ± 2 in stoveMinute.After insulation, shaping mould is cooled down together with metal rack in water, after cooling by metal rack from shaping mouldRemove, as long as ambient temperature is higher than 25 DEG C, the metal rack after setting just has shape and size during initial design, and is receivingAs long as external force is removed after external force after deforming, the shape and chi of the initial design that metal rack has after recovering at once to shapeIt is very little.
Sleeve pipe making material medical polyurethane material, is made into polyaminoester emulsion standby by medical polyurethane in advance.
The metal net support of wine cup shape after setting is enclosed within glass tubular mould again, glass tubular mould also will guaranteeThe set metal rack thereon still shape and size with initial design.By glass mold together with metal rack one thereonWith immersion polyaminoester emulsion in, then by glass mold together with metal rack by lifting out in emulsion, metal base portion existsOn, glass mold vertically to be placed, unnecessary emulsion is down trickled, the cladding scope of polyaminoester emulsion on glass mold, its lengthDegree will exceed the design length 450mm of sleeve pipe.Then, the glass mold of polyaminoester emulsion will be coated with（There is wine cup shape gold thereonCategory network）Put into and carry out in baking oven vulcanizing treatment, the temperature of vulcanizing treatment is 180 ± 15 DEG C, and the time is 60 ± 15 minutes.After vulcanizing treatment cooling, support is removed together with sleeve pipe from glass mold, pruned by the casing length of design, it is ensured that wholeThe length of frame is 500 ± 2mm.
Support mode of movement, using simple transport mode.
φ 0.15 mm NiTi shape-memory alloy wire of the metal base portion of support containing 54.5 ~ 57.0 wt %NiMaterial weaves, and sleeve pipe macromolecular material selects medical grade silicon rubber.The length of whole duodenal stent is 350mm.Wherein metal is propped upLength L=46 of frame, cup body length L1=20 of metal rack, cup handle length L2=12, cup bottom length L3=6, cup body, cup handle andThe diameter of the cup part of bottom three is respectively φ 1=24, φ 2=14 and φ 3=34.From three sections of assembling die conducts of a diameter of φ 20Braiding mould, the head number of each section of upper left-right rotary helix is identical, is 18, and helical pitch is different, the helical pitch difference of three partsIt is corresponding with cup bottom, cup handle and cup body respectively for 66,114 and 34.Woven webmaster blank is banded on shaping mould, settingMould struts webmaster blank, it is ensured that metal rack shape and size reach the contour shape and size of design.By shaping mouldBeing put into furnace temperature together with the wire netting pipe holder blank tied up is in 500 ± 5 DEG C of cabinet-type electric furnace, and is incubated 30 in stove± 2 minutes.After insulation, shaping mould is cooled down together with metal rack in water, by metal rack from setting mould after coolingRemove on tool, as long as ambient temperature is higher than 25 DEG C, the metal rack after setting just has shape and size during initial design, andAs long as removing after external force after being deformed by external force, the shape of the initial design that metal rack has after recovering at once to shapeAnd size.
Duodenal sleeve making material medical grade silicon rubber material, is made into emulsion standby by medical grade silicon rubber in advanceWith.
The wine cup shape metal net support after setting is enclosed within glass tubular mould again, glass tubular mould also will guaranteeThe set metal rack thereon still shape and size with initial design.By glass mold together with metal rack one thereonWith immersion silicone rubber emulsion in, then by glass mold together with metal rack by lifting out in emulsion, metal base portion existsOn, glass mold vertically to be placed, unnecessary emulsion is down trickled, the cladding scope of silicone rubber emulsion on glass mold, its lengthDegree will exceed the design length 350mm of sleeve pipe.Then, the glass mold of silicone rubber emulsion will be coated with（There is metal rack thereon）Put into and carry out in baking oven vulcanizing treatment, the temperature of vulcanizing treatment is 180 ± 15 DEG C, and the time is 60 ± 15 minutes.Vulcanizing treatment is coldBut after, support is removed together with sleeve pipe from glass mold, is pruned by the casing length of design, it is ensured that entirely the length of support is396±2mm.Support mode of movement is using two-wire axial direction intussusception binding mode of movement or axially folds binding mode of movement.