CN101822578B - Composite type orifice bracket - Google Patents
Composite type orifice bracket Download PDFInfo
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- CN101822578B CN101822578B CN2010101342741A CN201010134274A CN101822578B CN 101822578 B CN101822578 B CN 101822578B CN 2010101342741 A CN2010101342741 A CN 2010101342741A CN 201010134274 A CN201010134274 A CN 201010134274A CN 101822578 B CN101822578 B CN 101822578B
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- Prior art keywords
- plastic
- composite type
- tinsel
- connector
- type orifice
- Prior art date
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- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 111
- 229920003023 plastic Polymers 0.000 claims abstract description 111
- 229910052751 metal Inorganic materials 0.000 claims abstract description 58
- 239000002184 metal Substances 0.000 claims abstract description 58
- 239000002985 plastic film Substances 0.000 claims description 8
- 239000007888 film coating Substances 0.000 claims description 6
- 238000009501 film coating Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 7
- 210000000013 bile duct Anatomy 0.000 description 11
- 239000007943 implant Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 210000003445 biliary tract Anatomy 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000000968 intestinal effect Effects 0.000 description 5
- 210000003238 esophagus Anatomy 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 4
- 206010016717 Fistula Diseases 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003890 fistula Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 210000002345 respiratory system Anatomy 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 210000002784 stomach Anatomy 0.000 description 3
- 210000003708 urethra Anatomy 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 206010005908 Body temperature conditions Diseases 0.000 description 1
- 206010033645 Pancreatitis Diseases 0.000 description 1
- 206010033647 Pancreatitis acute Diseases 0.000 description 1
- 201000010312 acute cholangitis Diseases 0.000 description 1
- 201000003229 acute pancreatitis Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000032770 biofilm formation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- -1 memorial alloy Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920006264 polyurethane film Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 208000037921 secondary disease Diseases 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
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- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides a composite type orifice bracket, belonging to the technical field of medical appliances. The composite type orifice bracket consists of a plastic framework and a cylindrical metal wire connecting piece embedded in the plastic framework, wherein the plastic framework is provided with at least one opening and is made of a plurality of straight plastic bars vertically arranged at intervals, a cylindrical plastic net, a semi-cylindrical plastic plate with a C-shaped cross section, a plurality of wavy plastic bars vertically arranged at intervals or a plurality of spiral plastic bars vertically arranged at intervals; and the metal wire connecting piece is made of a cylindrical metal wire net, a spiral metal wire, a plurality of metal rings vertically arranged at intervals or a plurality of wavy metal rings vertically arranged at intervals. The composite type orifice bracket has the advantages of plastic brackets and metal brackets, enlarges the diameter of a hollow flow channel relative to the plastic bracket, reduces the occurrence of bracket clogging and also overcomes the disadvantage that the metal bracket is difficult to take out once implanted.
Description
Technical field
The present invention relates to a kind of medical non-blood vessel and use orifice bracket, particularly relate to a kind of composite type orifice bracket that adopts plastics and tinsel material to combine, belong to technical field of medical instruments.
Background technology
The tubulose tract of human body like tube chambers such as bile duct, ductus pancreaticus, esophagus, intestinal, respiratory tract, urethras, takes place that tract blocks, fistula or perforation, possibly cause serious secondary disease, and severe patient can cause death very soon.Implant frame is a kind of one of treatment means effectively, is to remove to block, and the circulating function of original tract is rebuild in shutoff fistula mouth or perforation.Support implant also have Wicresoft, economy, advantage such as easy to implement.
Existing non-vessel stent commonly used clinically generally can be divided into 3 kinds: metal rack, plastic stent and biodegradable stent.Biodegradable stent since material and technology that is that all right is ripe, have only only a few research institution to be used for zoopery and clinical trial.The characteristics that metal rack has is inflatable, wall thin, effective drainage tract diameter is big, but greatest problem is to take out once implanting general being difficult to, biliary metallic stents especially.With the biliary tract prosthesis is example, and metal rack is most frequently used in estimating that life span is in patient's body of individual month of 3-6, and the implanted prosthetics difficulty of metal rack is often high than plastic stent.Though back being easy to usually that plastic stent is implanted taken out, have than metal rack and obviously be shifted easily, and; The thickness of pipe wall of plastic stent, drain tract diameter is little, in addition the mechanism of biliary tract prosthesis biofilm formation; Most bile ducts promptly occur downright bad residue in early days in the time and assemble and cause stopping up, and implant back March, even 1-2 promptly blocks in week and causes complication such as acute cholangitis, acute pancreatitis; Finally, taking out or replace support is necessary selection.
Therefore; In order to change the shortcoming separately of common metal support and plastic stent; Various newly-designed supports occur in succession; " the aerofoil profile biliary tract prosthesis " declared recent years such as the U.S. and the big cinclides ductus pancreaticus support that is carrying out clinical verification etc., but still there is not significantly to improve the little shortcoming in bile duct plastic stent drain space.For other metal rack, design variation is maximum is embodied in esophagus, stomach efferent tract and intestinal support, and the design concept of individual body support frame also is suggested and at home and abroad implements.But, also do not have at present a kind of support to embody strong advantage and can overcome simultaneously and be difficult to take out after metal rack is implanted and plastic stent drain space is little and the shortcoming that is easy to be shifted.The present invention promptly is to provide a kind of new composite type orifice bracket, in conjunction with plastic stent and metal rack advantage and overcome deficiency separately separately.
Summary of the invention
The objective of the invention is:
A kind of orifice bracket is provided, remedies the metal current support and be difficult to take out and deficiencies such as plastic stent drain space is less.Be mainly used in organ tracts such as bile duct, ductus pancreaticus, esophagus, stomach efferent tract, intestinal, respiratory tract, urethra, auditory meatus.
The object of the invention can be realized through following measure:
A kind of composite type orifice bracket, said composite type orifice bracket is made up of plastic skeleton and the cylindrical metal silk connector that is embedded in the plastic skeleton, and plastic skeleton is provided with at least one place opening.
Said plastic skeleton is the semi-cylindrical plastic sheet of C type, vertical spaced some waveform plastic strips or vertical spaced some spiral type plastic strips for vertical spaced some straight plastic strips, columniform plastic wire, cross section.
Have at least one cinclides on the said plastic skeleton.
Said plastic skeleton is provided with at least one agnail.
At least one port of said plastic skeleton is provided with the plastic-enclosed ring.
Said tinsel connector is cylindrical metal silk screen, spirality metal silk, spaced number of metal ring or spaced some waveform beckets.
The tinsel that said tinsel connector adopts is the multifibres that monofilament or at least two one metal wires are wound in.
Said tinsel connector inner film coating or outer film coating.
One end of said composite type orifice bracket is frustum.
Beneficial effect of the present invention is:
(1) major defect of plastic stent is little, the easy displacement in wall thickness, drain space, and major advantage is to be easy to take out; The major defect of metal rack is to be difficult to after implanting take out, and major advantage is that wire diameter is little, cavity drain space is big.Both advantages and remedy corresponding shortcoming in the active set of the present invention, plastic stent has enlarged the diameter of hollow flow circulation passage relatively, reduces the generation that support blocks, and has also solved generally to be difficult to the disadvantage of taking out after metal rack is implanted.
(2) the tinsel connector of expose portion can expand and support whole plastic skeleton, increases the tract diameter, or through characteristics such as the thickness increase cavity drain space of wire diameter less than plastic wall; The effect that can be shifted through the anti-support of structure performance of tinsel.
(3) part because of the tinsel connector is fixed in the plastic skeleton; The expansion wiry or the strain that are embedded among the plastics are restricted, and the metal structure of institute's expose portion then can be former thereby make the stent drainage inner chamber increase less than the thickness of plastic wall etc. from swollen or elastic return or wire diameter because of it.Therefore, the inner chamber of the support of this structure obviously metal rack than simple is little, and is bigger than simple plastic stent.On the other hand, the existence of the slick plastic wall of wide area surface is also for preventing that tumor from playing an important role to intracavity growth and the taking-up that is beneficial to support.
(4) the tinsel connector zone of composite type orifice bracket of the present invention can be within it layer or outer covered with plastic film, then effectively play the effect of tumor tissues that prevent to the intracavity growth.
(5) composite type orifice bracket of the present invention can be loaded in the present common metal support implanting device; Implant the purpose organ through methods such as guiding of scope service aisle or seal wire and the supervision of X line, have that the tract of releasing is narrow, functions such as shutoff tract fistula or perforation.
Description of drawings
Fig. 1 is one of structural representation of the present invention.
Fig. 2 is two of a structural representation of the present invention.
Fig. 3 is three of a structural representation of the present invention.
Among the figure: 1, plastic skeleton; 2, tinsel connector; 3, opening; 4, cinclides; 5, plastic-enclosed ring; 6, agnail.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further:
Like Fig. 1, Fig. 2, shown in Figure 3, the invention provides a kind of composite type orifice bracket, constitute by plastic skeleton 1 and the cylindrical metal silk connector 2 that is embedded in the plastic skeleton 1.Plastic skeleton 1 is provided with the opening 3 that at least one place supplies fluid conduction.Plastic skeleton 1 and tinsel connector 2 single injection-moldeds.The plastics of plastic skeleton 1 are selected for use can be with reference to prior art, and for human body the compatible material of good biological being arranged, hardness adapts to corresponding tract after the machine-shaping.The material of tinsel connector 2 can be selected metals such as memorial alloy, rustless steel, like Ultimum Ti.One end of orifice bracket can design and be frustum, and this design is mainly used in the present invention as biliary tract prosthesis, with an end of the frustum head end when carrying, is convenient to orifice bracket is conveyed into bile duct.
Optionally perforate on the plastic skeleton 1.During as biliary tract prosthesis, have at least one cinclides 4 like the present invention on the plastic skeleton 1, be convenient to the fluid exchange between orifice bracket and the tract.As intestinal support, Esophageal Stent, then should not have cinclides 4 like the present invention.
In certain embodiments, plastic skeleton 1 is provided with at least one agnail 6.As shown in Figure 3, agnail 6 is for to be located at a slant cutting edge on plastic skeleton 1 tube wall, plays the effect such as hook snare to the intracavity displacement and when supplying support to take out of drain, prevention support.In further embodiments; When being vertical spaced some straight plastic strips, columniform plastic wire, vertical spaced some waveform plastic strips or vertical spaced some spiral type plastic strip like plastic skeleton 1; Among these embodiment; Also can establish agnail 6, be preferred structure not establish agnail 6 still.
The tinsel that tinsel connector 2 adopts is the multifibres that monofilament or at least two one metal wires are wound in, and tinsel connector 2 adopts the naked silk of tinsel, tinsel connector 2 inner film coatings or outer film coating.
The shape and the material of plastic skeleton 1 and tinsel connector 2 can be selected multi-form combination for use according to clinical needs.
Main manufacturing process of the present invention and use are following:
(1) goes out cylindrical metal silk connector 2 with tinsel processing (braiding).Tinsel connector 2 can be traditional metal rack shape.As be economical with materials, can select only processing (braiding) to be slightly larger than the big or small part of opening 3 areas that drain is used.The manufacturing process of tinsel connector 2 can adopt the materials such as General Instrument equipment, rustless steel or formative memory alloy of present conventional processing metal support.
(2) make injection mold according to the shape of the definite plastic skeleton 1 of design in advance, wherein be designed with the device of fixing metal silk connector 2.
(3) tinsel connector 2 is put into injection mold, injection mo(u)lding.Because of the plastic stent wall thickness of prior art promptly greater than the wall thickness of metal rack, so when injection moulding, should note making tinsel by plastic overmold at tinsel and plastics bound fraction, to reach all slick purpose inside and outside the orifice bracket.
(4) can be in the method for tinsel connector 2 zone passage film carriers at tinsel connector 2 outer walls or inwall overlay film.Film covering method can adopt the common film covering method of metal current support overlay film, like polyurethane film.This step is alternative step.
(5) through cooling and shaping, the stent conveying device of packing into, sterilization, process such as subsequent use, reach the requirement of implant into body.
(6) during implant into body, can use existing metal rack conveyer device, implant the purpose organ through methods such as scope service aisle or seal wire guiding and the supervision of X line.
Said process prepared composite die cavity road support can be used for organ tracts such as bile duct, ductus pancreaticus, esophagus, stomach efferent tract, intestinal, respiratory tract, urethra, auditory meatus.
Composite type orifice bracket of the present invention can be packed into and had now in the bracket conveyer, the stent diameter the when stent diameter after it discharges is arranged in carrier more than or equal to it.If adopt inflatable tinsel under the human body temperature condition; Tinsel connector 2 parts can be expanded after getting into human body; And producing the radian that certain support supports big plastic skeleton 1, the tinsel connector 2 after the plastic skeleton 1 after the expansion and the expansion surrounds a chamber bigger than original diameter jointly.During concrete operations, can be through approach implant frames such as endoscopic technic holes.
As shown in Figure 1, a kind of composite type orifice bracket is used for bile duct.Constitute by plastic skeleton 1 and the cylindrical metal silk connector 2 that is embedded in the plastic skeleton 1.Plastic skeleton 1 is vertical spaced four straight plastic strips, and the gap between each plastic strip is the opening 3 that supplies fluid conduction.Each plastic strip cross section is a circular arc, and radian is 60 °.
The tinsel that tinsel connector 2 adopts is monofilament, overlay film not.
Have a cinclides 4 on the plastic skeleton 1.
The lower port of plastic skeleton 1 is provided with plastic-enclosed ring 5.Tail end when this end is implanted as orifice bracket.
As shown in Figure 2, a kind of composite type orifice bracket is used for bile duct.Constitute by plastic skeleton 1 and the cylindrical metal silk connector 2 that is embedded in the plastic skeleton 1.Plastic skeleton 1 is the semi-cylindrical plastic sheet of C type for cross section, and the C type circular arc radian of its cross section is 270-290 °, and the vertical vertical bar shape breach of plastic skeleton 1 is the opening 3 that supplies fluid conduction.Tinsel connector 2 is the cylindrical metal silk screen, and the mesh shape of metal gauze is a rhombus, and the material of tinsel connector 2 is a Ultimum Ti.The cross section circular arc radian of tinsel connector 2 exposed parts is 70-90 °.The upper end of orifice bracket is frustum, and this end is used to implant the bile duct deep as the head end of orifice bracket.
The tinsel that tinsel connector 2 adopts is monofilament, overlay film not.
Have eight cinclides 4 on the plastic skeleton 1.
The lower port of plastic skeleton 1 is provided with plastic-enclosed ring 5.Tail end when this end is implanted as orifice bracket.
A kind of composite type orifice bracket is used for bile duct.
Among the embodiment 3, plastic skeleton 1 is the semi-cylindrical plastic sheet of C type for cross section, and the C type circular arc radian of its cross section is 120-180 °, and the vertical cut (V. cut) of plastic skeleton 1 is the opening 3 that supplies fluid conduction, and opening 3 is a waveform.The cross section circular arc radian of tinsel connector 2 exposed parts is 180-240 °.
Remainder is identical with embodiment 2.
As shown in Figure 3, a kind of composite type orifice bracket is used for bile duct.Constitute by plastic skeleton 1 and the cylindrical metal silk connector 2 that is embedded in the plastic skeleton 1.Plastic skeleton 1 is the semi-cylindrical plastic sheet of C type for cross section, and the C type circular arc radian of its cross section is 270-300 °, and the vertical vertical bar shape breach of plastic skeleton 1 is the opening 3 that supplies fluid conduction.Tinsel connector 2 is the spirality metal silk, and the material of tinsel connector 2 is a rustless steel.The cross section circular arc radian of tinsel connector 2 exposed parts is 60-90 °.The upper end of orifice bracket is frustum, and this end is used to implant purpose tract deep as the head end of orifice bracket.
The tinsel that tinsel connector 2 adopts is monofilament, overlay film not.
The lower port of plastic skeleton 1 is provided with plastic-enclosed ring 5.Tail end when this end is implanted as orifice bracket.
Be provided with an agnail 6 at plastic skeleton 1 near the position of tail end, agnail 6 is a slant cutting edge on plastic skeleton 1 tube wall, and the opening of agnail 6 is towards the head end of support.
Above-mentioned instance of the present invention only be for clearly demonstrate that the present invention does for example; And be not that embodiment of the present invention is limited; Ordinary person for affiliated field; Also can on the basis of above-mentioned explanation, make other multi-form variation or changes, need not here also can't give to institute's embodiment exhaustive, and these belong to the present invention the conspicuous variation that makes it to be amplified out or the change still be in protection scope of the present invention.
The present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
Claims (8)
1. composite type orifice bracket; It is characterized in that said composite type orifice bracket is made up of plastic skeleton (1) and the cylindrical metal silk connector (2) that is embedded in the plastic skeleton (1); Plastic skeleton (1) is the semi-cylindrical plastic sheet of C type, vertical spaced some waveform plastic strips or vertical spaced some spiral type plastic strips for vertical spaced some straight plastic strips, columniform plastic wire, cross section; Plastic skeleton (1) is provided with at least one place opening (3), and tinsel connector (2) is positioned between the wall of plastic skeleton (1) as the chamber wall.
2. composite type orifice bracket according to claim 1 is characterized in that having on the said plastic skeleton (1) at least one cinclides (4).
3. composite type orifice bracket according to claim 1 is characterized in that said plastic skeleton (1) is provided with at least one agnail (6).
4. composite type orifice bracket according to claim 1 is characterized in that at least one port of said plastic skeleton (1) is provided with plastic-enclosed ring (5).
5. composite type orifice bracket according to claim 1 is characterized in that said tinsel connector (2) is cylindrical metal silk screen, spirality metal silk, spaced number of metal ring or spaced some waveform beckets.
6. according to claim 1 or 5 described composite type orifice brackets, it is characterized in that the tinsel that said tinsel connector (2) adopts is the multifibres that monofilament or at least two one metal wires are wound in.
7. according to claim 1 or 5 described composite type orifice brackets, it is characterized in that said tinsel connector (2) inner film coating or outer film coating.
8. composite type orifice bracket according to claim 1 is characterized in that an end of said composite type orifice bracket is frustum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101342741A CN101822578B (en) | 2010-03-29 | 2010-03-29 | Composite type orifice bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101342741A CN101822578B (en) | 2010-03-29 | 2010-03-29 | Composite type orifice bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101822578A CN101822578A (en) | 2010-09-08 |
| CN101822578B true CN101822578B (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101342741A Active CN101822578B (en) | 2010-03-29 | 2010-03-29 | Composite type orifice bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101822578B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380131B (en) * | 2011-10-21 | 2013-12-04 | 刘吉勇 | Degradable or detachable digestive tract bracket |
| CN105287065A (en) * | 2015-10-10 | 2016-02-03 | 天津源康龙科技有限公司 | Prostate stent |
| CN115192249B (en) * | 2022-06-24 | 2024-04-30 | 柏为（武汉）医疗科技股份有限公司 | External auditory canal pruning support |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234793Y (en) * | 1995-11-27 | 1996-09-11 | 范志宁 | Medical intracavitary support |
| CN2358913Y (en) * | 1999-02-11 | 2000-01-19 | 仇学明 | Head-neck-type esophagus support |
| CN2621725Y (en) * | 2003-03-25 | 2004-06-30 | 中日友好医院 | Canal stand for human body |
| EP1685813A1 (en) * | 2005-01-28 | 2006-08-02 | Urovision Gesellschaft für Medizinischen Technologie Transfer mbH | Stent-graft |
-
2010
- 2010-03-29 CN CN2010101342741A patent/CN101822578B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234793Y (en) * | 1995-11-27 | 1996-09-11 | 范志宁 | Medical intracavitary support |
| CN2358913Y (en) * | 1999-02-11 | 2000-01-19 | 仇学明 | Head-neck-type esophagus support |
| CN2621725Y (en) * | 2003-03-25 | 2004-06-30 | 中日友好医院 | Canal stand for human body |
| EP1685813A1 (en) * | 2005-01-28 | 2006-08-02 | Urovision Gesellschaft für Medizinischen Technologie Transfer mbH | Stent-graft |
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| Publication number | Publication date |
|---|---|
| CN101822578A (en) | 2010-09-08 |
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Effective date of registration: 20190422 Address after: No. 34 Caozhuang Formation, Gaoli Village, Yongning Town, Pukou District, Nanjing City, Jiangsu Province, 210000 Patentee after: Xu Chuanyou Address before: 210011 Jiang Home in Xiaguan District, Nanjing City, Jiangsu Province Patentee before: Yao Yicuan |
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