CN106580514A - Implantation device of duodenum stent - Google Patents
Implantation device of duodenum stent Download PDFInfo
- Publication number
- CN106580514A CN106580514A CN201611067878.2A CN201611067878A CN106580514A CN 106580514 A CN106580514 A CN 106580514A CN 201611067878 A CN201611067878 A CN 201611067878A CN 106580514 A CN106580514 A CN 106580514A
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- China
- Prior art keywords
- support
- core pipe
- binding
- cup
- stent
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2002/045—Stomach, intestines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2002/9505—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
- A61F2002/9511—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument the retaining means being filaments or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/001—Figure-8-shaped, e.g. hourglass-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
Abstract
An implantation device of a duodenum stent is characterized in that the device comprises a core tube which is used for bearing the duodenum stent; the wall of the core tube is provided with a first binding wire channel and a first stent binding wire window; and the first binding wire channel is internally provided with a first binding wire which is used for fixedly binding the duodenum stent. The implantation device of the duodenum stent can conveniently and reliably realize withdrawing after implantation of the duodenum stent. The main chamber of the core tube is provided with radial liquid discharging holes so that distilled water is injected through a handle liquid injection hole in retreating the implantation device and flows to a clearance between a stent sleeve and the implantation device. In injection of the distilled water, the implantation device of the duodenum stent is withdrawn and simultaneously rotated in a left-and-right direction for preventing packaging of the implantation device by the sleeve of the stent and furthermore preventing withdrawing of the implantation device from the stent sleeve.
Description
Present patent application " the support inserting device tool of duodenal stent " is the applying date to be：2015-06-03, application
Number it is：201510298007.0 it is with invention and created name：Duodenal stent, preparation method, mould and support inserting device tool
With 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 support
Insertion 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 every
From effect（Isolation chyme and Digestive system）Sleeve pipe.Duodenal stent proposed by the present invention is as shown in figure 1, be also by fixture
Constitute with sleeve pipe.Compared with the quoit positioning action with metal ring or ellipse of existing proposition, the present invention devises wine
Cup 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 remote
The 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 to
Cup 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 food
Gruel 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 handle
The 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 to
Intestinal 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 increases
Whole 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 defeated
Send 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 apparatus
Simply, and processing ease.Thus, whether duodenal stent or apparatus is inserted accordingly, it is characteristic of the invention that simple
Single, 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 mounts
Enter 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 support
On 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 long
Degree 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 3rd
Section 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 after
The 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, institute
State 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 neighborhood
In 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 neighborhood
4th 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 network
Handle is highly corresponding, and the 5th section spiral line intersects to form a glass handle cross point with second section spiral line, constitutes any phase
5th 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, structure
The 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 line
Top 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 network
The 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 line
Lower 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 the
One 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 1.2
Until 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 will
20 ~ 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-shaped
Water-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 bolt
One 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 circle
Core 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 to
The 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 this
Until 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 pipe
With 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, and
The 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 pipe
The 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 institute
Duodenal stent is stated, the first binding line passage and first support binding linear window is provided with the core pipe wall of core pipe, first
The 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 duodenum
Support casing being provided with the support inserting device tool of lashing wire, then with duodenal stent binding method by duodenal stent
It 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 duodenum
The 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 circle
The 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 time
Described 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 tool
Afterbody 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 kept
The 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 covered
The 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 ten
Two duodenum 12 inwalls are contacted, and so as to reducing or even excluding duodenal digestion and Absorption completely, effectively blocking small intestinal is to food
Thing 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 through
Support to duodenum or jejunum are discharged.During duodenal stent setting treatment, certain elastic force is produced, make duodenal branchess
The 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 to
Goblet 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 operation
One 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 docile
Ground 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 mucosa
There 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 12
Intestinal 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 gold
The 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 pair
The radial support effect very little of pylorus, so that pylorus remains in that its contractile function, the impact to pylorus physiological function is significant
Reduce.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 pipe
Integral 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 another
Group is dextrorotation, and two groups of helix mutually activities intersect, and constitute many little networks.Exactly, adjacent two left-turn spirals
Line and adjacent two right-hand helixs intersect, and constitute little network unit, and whole circular metal webmaster is completely by this
A 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 that
On 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 helixes
On 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 high
Counter-bending elasticity, stage casing has relatively low radial support power, and distal ports have higher radial support power, thus, distal ports cup
The 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 this
Root 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 parallel
It 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 point
When 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-handed
Below parallel helix, with reference to Fig. 5.In these cross points, two Ni-Ti shape-memory alloy wires of difference trend are only mutual
Intersect, when support deforms, this two silks can produce relative displacement, thus, these cross points are all slip-knot points.Compile
When 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 overlaps
In 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 about
When 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 with
Different helical pitches are chosen, thus, each section of support for knitting out has different size of network, also just has different mechanics
Performance：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 finished
Remove.
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 handle
Liquid 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 up
Mount 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 support
Insert 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 inserted
On apparatus, then proximally and distally the bundling duodenal stent with lashing wire, make duodenal stent be fixed on conveying dress
Put.After support inserting device tool is inserted in place together with support, pull support inserting device tool afterbody is lashing wire, you can break rope
Knot, 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 remainder
In nonbinding state.The effect of rack far end binding is the position for fixing duodenal stent sleeve pipe on apparatus is inserted, and is prevented
Sleeve 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 tied
The 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 holder
On face.Duodenal stent is bundled in the distal end for inserting apparatus, the lashing wire of rack far end --- first support lashing wire 87, Jing
By 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 13
Binding 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 end
Line --- second support lashing wire 86, bundlees line passage 852, by second support lashing wire in core pipe via the second support of core pipe
Window（83）Pass, bundled the near-end of support with same binding method, it is ensured that metal base portion is docile to be bundled in
Insert 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 apparatus
Pipe is passed, and during release support, first pull second support lashing wire discharges the near-end of support；Work as mount proximal end --- metal rack
Part 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 us
Two 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 axle
Method 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 folding
Proximally 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 folding
Support tied line to bundle completely, it is ensured that whole duodenal stent is snugly coated on a conveyor, Bu Huiying
Ring 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 defeated
The 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.This
The 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 double
Lumen, 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 by
Second 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 again
Linear 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 score
Sub- material bushing.
Fig. 2 is the close-up schematic view of duodenal stent of the present invention, show duodenal stent with it is gastropyloric
Mutual 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 disk
Envelope 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 up
The 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-high
Molecular 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, Jing
Extraction and subsequent sulfuration in macromolecular material emulsion, form the sleeve pipe integrated with the thin film on wire netting pipe holder.Figure
In, 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 put
Enter apparatus, in figure, 81-soft head, 82-first support binding linear window, 83-second support binding linear window, 851-the first
Binding line passage, the 852-the second binding line passage, the 86-the second lashing wire, the 87-the first lashing wire, 9-handle, 91-Rule
Joint, 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 invention
Apparatus 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-secondary
Fake, 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 1
Pipe 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 and
Fig. 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 shaped
Wire and constitute in the nemaline wire interlacing of right-hand screw, generally, wire adopts Ni-Ti
Shape-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 body
The 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 part
The lead of helix be 40 ~ 85mm so that the cup handle 42 of wine cup shape network 1 have elastic deformability, reference picture
4, 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 described
Sleeve 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. 6
The 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 second
Section 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 around
The 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 after
The 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 intersects
4th 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 two
4th 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 network
Degree is corresponding, and the 5th section spiral line intersects to form a glass handle cross point with second section spiral line, constitutes arbitrary neighborhood two
5th 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 appointed
5th section spiral line in another glass of handle cross point anticipated in two neighboring cup handle cross point is from second section spiral line top
Through 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 network
Disk 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 appoints
Anticipate 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 wear
Cross, 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 shell
Spin 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 1.2
Until forming circular metal webmaster；
It should be noted that the present invention is during helix winding, helix Jing after bending, will coiling helix rotation direction
It 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 mould
On, 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 incubated
20 ~ 50 minutes.Water-cooled after insulation, unloads shaping mould, has just obtained wine cup shape network.The present embodiment specifically can be selected
Be 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 network
Casing 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 adhesive
On 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 covers
The tubular mould for having wine cup shape network lifts out macromolecular material emulsion, in wine cup shape network and tubular mould
The 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 network
On 1 and the macromolecule material film being integrated altogether is formed on tubular mould 5, and in wine cup shape network cup bottom bending edge
Upper 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 65
Round-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 65
Nut 66 fasten, in braiding cup round-ended cylinder shape mould 61, braiding cup handle cylindrical mold 62 and braiding cup body cylindrical mold
63, 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 cup
The 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 61
Outer end, extends up to form spiral groove net, and the spiral type in braiding cup handle cylindrical mold 62 repeatedly with this
The 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 braiding
The 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 shape
The 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 63
The 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 inserted
Apparatus can respectively bundle duodenal stent proximally and distally using a lashing wire, and now, the core pipe for inserting apparatus is adopted
The 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 one
Root 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 12
Duodenum 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 8
The 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 8
Raidal 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, then
The 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 12
Duodenum 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 8
The 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 8
Raidal 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 window
82 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 8
Linear 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 wrapped
Include 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 851,852
Communicate, 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, second
Tail 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 94
The 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 arranged
On the support inserting device tool of lashing wire, then duodenal stent is bundled in into support with duodenal stent binding method inserts
On 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 existed
The 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 fake
And 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 time
Described 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 support
The 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 branchess
Before 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 folding
As 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 stent
Bundled, this is single line or two-wire axial direction intussusception binding mode of movement and single line or two-wire axially folds binding conveying side
Formula, this kind of binding mode still bundlees duodenal stent proximally and distally respectively, but the scope of near-end binding coil will be covered
Support 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 pull
Insert 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 %Ni
Spun gold material weaves, and sleeve pipe macromolecular material selects medical polyurethane.The length of whole support is 450mm.Wherein metal rack
Length 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 bottom
The 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 braiding
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 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 mould
Webmaster blank is strutted, it is ensured that metal rack shape and size reach the contour shape and size of design.By shaping mould together with
The 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 stove
Minute.After insulation, shaping mould is cooled down together with metal rack in water, after cooling by metal rack from shaping mould
Remove, 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 receiving
As 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 shape
It 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 guarantee
The set metal rack thereon still shape and size with initial design.By glass mold together with metal rack one thereon
With immersion polyaminoester emulsion in, then by glass mold together with metal rack by lifting out in emulsion, metal base portion exists
On, glass mold vertically to be placed, unnecessary emulsion is down trickled, the cladding scope of polyaminoester emulsion on glass mold, its length
Degree 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 thereon
Category 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 whole
The 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 %Ni
Material weaves, and sleeve pipe macromolecular material selects medical grade silicon rubber.The length of whole duodenal stent is 350mm.Wherein metal is propped up
Length 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 and
The 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 20
Braiding 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 parts
It is corresponding with cup bottom, cup handle and cup body respectively for 66,114 and 34.Woven webmaster blank is banded on shaping mould, setting
Mould struts webmaster blank, it is ensured that metal rack shape and size reach the contour shape and size of design.By shaping mould
Being 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 cooling
Remove 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, and
As 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 shape
And size.
Duodenal sleeve making material medical grade silicon rubber material, is made into emulsion standby by medical grade silicon rubber in advance
With.
The wine cup shape metal net support after setting is enclosed within glass tubular mould again, glass tubular mould also will guarantee
The set metal rack thereon still shape and size with initial design.By glass mold together with metal rack one thereon
With immersion silicone rubber emulsion in, then by glass mold together with metal rack by lifting out in emulsion, metal base portion exists
On, glass mold vertically to be placed, unnecessary emulsion is down trickled, the cladding scope of silicone rubber emulsion on glass mold, its length
Degree 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 cold
But 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 is
396±2mm.Support mode of movement is using two-wire axial direction intussusception binding mode of movement or axially folds binding mode of movement.
Claims (4)
1. the support inserting device tool of a kind of duodenal stent, it is characterised in that include：Core pipe (8) and core pipe (8) are for carrying
The duodenal stent, is provided with the first binding line passage (851) and first support lashing wire window on the core pipe wall of core pipe (8)
Mouth (82), is provided with the first lashing wire for tying up the duodenal stent for fixation in the first binding line passage (851)
(87)。
2. the support inserting device tool of duodenal stent according to claim 1, it is characterised in that the first support bundle
Wiring window (82) is additionally provided with the second binding line passage positioned at the distal end of the core pipe (8) on the core pipe wall of core pipe (8)
(852) and second support binding linear window (83) and the second support binding linear window (83), relative to the first lashing wire window
Mouth (82) is partial to the near-end of the core pipe (8), is provided with the second binding line passage (852) for 12 fingers described in fixed bundle Tie
Second lashing wire (86) of intestinal ceca frame.
3. the support inserting device tool of duodenal stent according to claim 1 and 2, it is characterised in that in core pipe (8)
Core pipe wall is provided with raidal drainage hole (88) and the raidal drainage hole (88) and connects with core pipe main chamber (84).
It is 4. according to claim 3 to insert apparatus, it is characterised in that to be provided with soft head (81) in the distal tip of core pipe (8),
Handle (9) is connected with the near-end afterbody of core pipe (8), the handle (9) includes supervisor (93), the first tail pipe (94) and the second tail
Pipe (95), supervisor (93) is connected with the core pipe main chamber (84) of core pipe (8), and the first tail pipe (94) bundlees line passage (851) with first
Connection, and first lashing wire (87) is through the first tail pipe (94), the second tail pipe (95) is with the second binding line passage (852) even
Connect, and second lashing wire (86) is through the second tail pipe (95), in the end of the first tail pipe (94) and the second tail pipe (95) point
Female Luer (91) is not provided with, in female Luer (91) closure (92) is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067878.2A CN106580514A (en) | 2015-06-03 | 2015-06-03 | Implantation device of duodenum stent |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510298007.0A CN105055062A (en) | 2015-06-03 | 2015-06-03 | Duodenum stent, preparation method, mould, stent implantation instrument and binding method |
| CN201611067878.2A CN106580514A (en) | 2015-06-03 | 2015-06-03 | Implantation device of duodenum stent |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510298007.0A Division CN105055062A (en) | 2015-06-03 | 2015-06-03 | Duodenum stent, preparation method, mould, stent implantation instrument and binding method |
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| CN106580514A true CN106580514A (en) | 2017-04-26 |
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| CN201510298007.0A Pending CN105055062A (en) | 2015-06-03 | 2015-06-03 | Duodenum stent, preparation method, mould, stent implantation instrument and binding method |
| CN201611067848.1A Pending CN106510895A (en) | 2015-06-03 | 2015-06-03 | Binding method for fixing duodenum stent to stent implantation instrument |
| CN201611067878.2A Pending CN106580514A (en) | 2015-06-03 | 2015-06-03 | Implantation device of duodenum stent |
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| CN201510298007.0A Pending CN105055062A (en) | 2015-06-03 | 2015-06-03 | Duodenum stent, preparation method, mould, stent implantation instrument and binding method |
| CN201611067848.1A Pending CN106510895A (en) | 2015-06-03 | 2015-06-03 | Binding method for fixing duodenum stent to stent implantation instrument |
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Cited By (1)
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|---|---|---|---|---|
| WO2019240800A1 (en) * | 2018-06-14 | 2019-12-19 | W. L. Gore & Associates, Inc. | Single fiber constraining for implantable medical devices |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017117439B4 (en) * | 2017-08-01 | 2021-05-20 | Novatech Sa | Stent |
| US11517461B2 (en) * | 2018-04-12 | 2022-12-06 | Hangzhou Tangji Medical Technology Co. Ltd | Gastric diverter and digestive tract support and release method thereof |
| WO2022097637A1 (en) * | 2020-11-04 | 2022-05-12 | Ｓｂカワスミ株式会社 | Stent |
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Also Published As
| Publication number | Publication date |
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| CN106510895A (en) | 2017-03-22 |
| CN105055062A (en) | 2015-11-18 |
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Application publication date: 20170426 |