CN106963526A - A kind of blocked flake type anti-reflux support - Google Patents

A kind of blocked flake type anti-reflux support Download PDF

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Publication number
CN106963526A
CN106963526A CN201710279841.4A CN201710279841A CN106963526A CN 106963526 A CN106963526 A CN 106963526A CN 201710279841 A CN201710279841 A CN 201710279841A CN 106963526 A CN106963526 A CN 106963526A
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CN
China
Prior art keywords
support body
tubbiness
end cap
reflux
bucket bottom
Prior art date
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Granted
Application number
CN201710279841.4A
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Chinese (zh)
Other versions
CN106963526B (en
Inventor
张伟
宋晓菲
王震
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Tianjin University
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Tianjin University
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Publication date
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Priority to CN201710279841.4A priority Critical patent/CN106963526B/en
Publication of CN106963526A publication Critical patent/CN106963526A/en
Application granted granted Critical
Publication of CN106963526B publication Critical patent/CN106963526B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2002/821Ostial stents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0069Three-dimensional shapes cylindrical
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058Additional features; Implant or prostheses properties not otherwise provided for

Abstract

A kind of blocked flake type anti-reflux support, including tubbiness support body collectively form one-way valve structures with the end cap in tubbiness support body one end, described tubbiness support body and the end cap covered in tubbiness support body one end is covered.One end of the tubbiness support body is the hatch frame for being capable of influent, the formation that the other end of the tubbiness support body is inwardly recessed, which has, can cover the bucket bottom into end cap, the scallop hole that described combined hole is formed with several and is connected inside tubbiness support body is surrounded on the combined hole being centrally formed with for being combined with described end cap at the bucket bottom, the bucket bottom.A kind of blocked flake type anti-reflux support of the present invention, tubbiness support body end cap 2 collectively forms one-way valve structures, anti-reflux effect can played, the present invention changes conventional support only in liquid buildup to the defect for having certain pressure to pass through simultaneously, liquid is set uniformly to circulate, it is not easy to choking phenomenon occur.Use time is long, does not change easily, so as to reduce production cost.

Description

A kind of blocked flake type anti-reflux support
Technical field
The present invention relates to a kind of anti-reflux support.The blocked flake type anti-reflux support of more particularly to a kind of clinical practice.
Background technology
Caused by Malignent Biliary Obstruction room-mate cholangiocarcinoma, carcinoma of ampulla, gallbladder cancer, cancer of pancreas and other metastatic malignant tumours Diagnosis of bile duct obstruction, often using pruitus and cholangitis as performance, can cause liver function to deteriorate rapidly.Radical-ability surgery hand Art is the preferred therapeutic scheme of Malignent Biliary Obstruction.But most of malignant obstructive jaundice has been unresectable evening when making a definite diagnosis Phase tumour, its radical resection rate only has 10%-27%, therefore Most patients have selected this palliative therapy side of therapeutic endoscopy Case, and with the popularization of endoscopic technic clinical practice, Biliary stenting is applied by Most patients and family members' selection.But courage The drawbacks of road stenting has certain, the conventional biliary tract plastic stent unobstructed time is short, easily blocks, and metallic support then valency Lattice are expensive and can not take out after inserting and patient has very big chance is postoperative courage intestines reflux phenomenon occur, and patient can be made postoperative anti- Appear again the symptom of existing infection of biliary tract.Therefore occurred in that the relevant clinical research of anti-reflux plastics and metallic support in succession in recent years, just Step indicates the unobstructed time that anti-reflux support is capable of effective extending bracket.
Status both at home and abroad and development trend:Biliary tract plastic stent, metallic support are inserted under scope and has been widely used for nothing The treatment of the malignant biliary obstruction of method radical excision, its curative effect has gained public acceptance, and anti-reflux metal biliary tract rack mesh It is preceding to have had applied to clinical report, and its practical value of tentative confirmation, metallic support than plastic stent more suitable for It is unable to the bile duct malignant tumour of surgery excision, but metallic support somewhat expensive, for the bad patient of economic condition, using upper Be not suitable for, and anti-reflux metallic support, as common metal support, placement is permanent, it is impossible to taken out of patient body Go out, once obstruction, almost loses its value, it is still necessary to place support again.It is even more easy and anti-reflux plastic stent is not only at a low price Change, therefore following anti-reflux plastic stent application can be more extensive.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of can play and prevent the blocked flake type anti-reflux of effect of backflowing Support.
The technical solution adopted in the present invention is:A kind of blocked flake type anti-reflux support, including tubbiness support body and cover in tubbiness The end cap of support body one end, described tubbiness support body and the end cap covered in tubbiness support body one end collectively form one-way valve structures.
One end of the tubbiness support body is the hatch frame for being capable of influent, and the other end of the tubbiness support body concaves The formation entered, which has, can cover the bucket bottom into end cap, the combination being centrally formed with for being combined with described end cap at the bucket bottom The scallop hole that described combined hole is formed with several and is connected inside tubbiness support body is surrounded on hole, the bucket bottom.
The T-type structure that described end cap is formed as one, the horizontal component of the T-type structure is constituted for covering the bucket The circle silica gel catch of scallop hole on bottom, the vertical component of the T-type structure is constituted for inserting the combined hole on the bucket bottom The equally spaced silica gel for being formed with a circle straight pin being made to be combined with combined hole falls on interior straight pin, the straight pin Hornblock.
The diameter of the round silica gel catch is less than the diameter at the bucket bottom.
A circle is formed with the internal perisporium of described combined hole can be embedded in the groove of the silica gel chamfering block.
A kind of blocked flake type anti-reflux support of the present invention, tubbiness support body end cap 2 collectively forms one-way valve structures, can rise To anti-reflux effect, while the present invention changes conventional support only in liquid buildup to the defect for having certain pressure to pass through, Liquid is set uniformly to circulate, it is not easy to choking phenomenon occur.Use time is long, does not change easily, so as to reduce production cost.
Brief description of the drawings
Fig. 1 is a kind of external structure schematic diagram of blocked flake type anti-reflux support of the invention;
Fig. 2 is tubbiness support body and structural representation during end cap separation in the present invention;
Fig. 3 is the internal structure schematic diagram of tubbiness support body in the present invention;
Fig. 4 is end view of the tubbiness support body with bucket bottom in the present invention;
Fig. 5 is the structural representation of end cap in the present invention;
Fig. 6 is the side structure schematic diagram of end cap in the present invention;
Fig. 7 is internal structure schematic diagram when tubbiness support body and end cap are combined in the present invention.
In figure
1:Tubbiness support body 11:Bucket bottom
12:Combined hole 13:Scallop hole
14:Groove 2:End cap
21:Circle silica gel catch 22:Straight pin
23:Silica gel chamfering block
Embodiment
A kind of blocked flake type anti-reflux support of the present invention is described in detail with reference to embodiment and accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of blocked flake type anti-reflux support of the invention, including tubbiness support body 1 and cover in tubbiness frame The end cap 2 of the one end of body 1.Described tubbiness support body 1 and the end cap 2 covered in the one end of tubbiness support body 1 collectively form one-way valve structures.
As shown in Figure 3, Figure 4, one end of the tubbiness support body 1 is the hatch frame for being capable of influent (bile), described The formation that the other end of tubbiness support body 1 is inwardly recessed has can cover the bucket bottom 11 into end cap 2, and the bucket bottom 11 is centrally formed with Being formed with a circle for the combined hole 12 being combined with described end cap 2, on the internal perisporium of described combined hole 12 can be embedded in The groove 14 of the silica gel chamfering block 23.On the face of bucket bottom 11 several and tubbiness frame are formed with around described combined hole 12 The scallop hole 13 being connected inside body 1, described scallop hole 13 is easy to bile to circulate.
As shown in Figure 5, Figure 6, the T-type structure that described end cap 2 is formed as one, the horizontal component structure of the T-type structure Into the circle silica gel catch 21 for covering the scallop hole 13, the diameter of the round silica gel catch 21 is less than the straight of the bucket bottom 11 Footpath.The vertical component of the T-type structure is constituted for inserting the straight pin 22 in the combined hole 12, and the straight pin 22 is first-class What is be spaced is formed with the silica gel chamfering block 23 that a circle can make straight pin 22 be combined closely with combined hole 12.Described silica gel Chamfering block 23 is combined with described combined hole 12, between horizontal direction is present necessarily after the groove on chamfering block and support body is combined Gap, chamfering block can move freely certain distance along groove horizontal direction, can prevent bile regurgitation.
As shown in fig. 7, end cap 2 is covered behind the end of bucket bottom 11 of the tubbiness support body 1, the silica gel chamfering block 23 on end cap 2 It is respectively embedded in groove 14, can enters when bile forward direction circulation is dynamic from the openend of tubbiness support body 1, initially pass through scallop hole 13, round silica gel catch 21 is rushed at, is pushed up to circle silica gel catch 21, and make to justify silica gel catch 21 and be bent outwardly, while so that end cap 2 is whole Body moves to right a certain distance, is not attached to closely on barrel bottom 11, makes liquid from the gap between circle silica gel catch 21 and bucket bottom 11 Place's outflow, in bile reverse circulated, makes to justify silica gel catch 21 and restores to the original state, so as to play a part of preventing to backflow.
The method and approach for implementing a kind of blocked flake type anti-reflux support of the present invention are a lot, and described above is only this hair Bright preferred embodiment, it is noted that for those skilled in the art, is not departing from the principle of the invention On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention, this reality Applying each part being not known in example can use prior art to be realized.

Claims (5)

1. a kind of blocked flake type anti-reflux support, including tubbiness support body (1) and the end cap (2) in tubbiness support body (1) one end is covered, it is special Levy and be, described tubbiness support body (1) and the end cap (2) covered in tubbiness support body (1) one end collectively form one-way valve structures.
2. a kind of blocked flake type anti-reflux support according to claim 1, it is characterised in that the one of the tubbiness support body (1) Hold to be capable of the hatch frame of influent, the formation that the other end of the tubbiness support body (1) is inwardly recessed, which has, can cover into end Cover the bucket bottom (11) of (2), the combined hole being centrally formed with for being combined with described end cap (2) of the bucket bottom (11) (12), it is formed with what several were connected with tubbiness support body (1) inside around described combined hole (12) on the bucket bottom (11) Scallop hole (13).
3. a kind of blocked flake type anti-reflux support according to claim 2, it is characterised in that described end cap (2) is integrated The T-type structure of formation, the horizontal component of the T-type structure constitutes the circle for covering the scallop hole (13) on the bucket bottom (11) Silica gel catch (21), the vertical component of the T-type structure is constituted for inserting in the combined hole (12) on the bucket bottom (11) The equally spaced circle that is formed with can make straight pin (22) and combined hole (12) on straight pin (22), the straight pin (22) With reference to silica gel chamfering block (23).
4. a kind of blocked flake type anti-reflux support according to claim 3, it is characterised in that the round silica gel catch (21) Diameter is less than the diameter of the bucket bottom (11).
5. a kind of blocked flake type anti-reflux support according to claim 3, it is characterised in that described combined hole (12) it is interior A circle is formed with perisporium can be embedded in the groove (14) of the silica gel chamfering block (23).
CN201710279841.4A 2017-04-25 2017-04-25 A kind of blocked flake type anti-reflux holder Expired - Fee Related CN106963526B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710279841.4A CN106963526B (en) 2017-04-25 2017-04-25 A kind of blocked flake type anti-reflux holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710279841.4A CN106963526B (en) 2017-04-25 2017-04-25 A kind of blocked flake type anti-reflux holder

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CN106963526A true CN106963526A (en) 2017-07-21
CN106963526B CN106963526B (en) 2018-10-23

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080269879A1 (en) * 2005-07-27 2008-10-30 Rahul Dilip Sathe Implantable Prosthetic Vascular Valve
CN201150581Y (en) * 2008-01-29 2008-11-19 胡冰 Biliary tract anti-countercurrent stent
CN201341976Y (en) * 2009-01-31 2009-11-11 刘春安 Biliary tract anti-reflux metal stent
CN201719412U (en) * 2010-05-20 2011-01-26 南京微创医学科技有限公司 Biliary stent with anti-backflow flap
CN202960824U (en) * 2012-12-18 2013-06-05 南京微创医学科技有限公司 Anti-regurgitation stent of esophagus
CN203090195U (en) * 2013-01-05 2013-07-31 中山市沃德医疗器械有限公司 Catheter preventing liquid from flowing back
CN203447390U (en) * 2013-06-28 2014-02-26 丁义涛 Regurgitation-preventing biliary stent used for carrying radioactive particles
CN203576702U (en) * 2013-09-29 2014-05-07 中国人民解放军第二军医大学 Biliary stent capable of reducing biliary-intestinal reflux
CN203749985U (en) * 2014-01-03 2014-08-06 江苏省人民医院 Anti-backflow ureter bracket tube
CN204542479U (en) * 2015-04-07 2015-08-12 王录军 The anti-reflux support of a kind of esophagus
WO2015195252A1 (en) * 2014-06-20 2015-12-23 Ethicon Endo-Surgery, Inc. Artificial esophageal sphincter
CN106308985A (en) * 2015-07-03 2017-01-11 上海交通大学医学院附属新华医院 Anti-backflow biliary tract drainage support

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080269879A1 (en) * 2005-07-27 2008-10-30 Rahul Dilip Sathe Implantable Prosthetic Vascular Valve
CN201150581Y (en) * 2008-01-29 2008-11-19 胡冰 Biliary tract anti-countercurrent stent
CN201341976Y (en) * 2009-01-31 2009-11-11 刘春安 Biliary tract anti-reflux metal stent
CN201719412U (en) * 2010-05-20 2011-01-26 南京微创医学科技有限公司 Biliary stent with anti-backflow flap
CN202960824U (en) * 2012-12-18 2013-06-05 南京微创医学科技有限公司 Anti-regurgitation stent of esophagus
CN203090195U (en) * 2013-01-05 2013-07-31 中山市沃德医疗器械有限公司 Catheter preventing liquid from flowing back
CN203447390U (en) * 2013-06-28 2014-02-26 丁义涛 Regurgitation-preventing biliary stent used for carrying radioactive particles
CN203576702U (en) * 2013-09-29 2014-05-07 中国人民解放军第二军医大学 Biliary stent capable of reducing biliary-intestinal reflux
CN203749985U (en) * 2014-01-03 2014-08-06 江苏省人民医院 Anti-backflow ureter bracket tube
WO2015195252A1 (en) * 2014-06-20 2015-12-23 Ethicon Endo-Surgery, Inc. Artificial esophageal sphincter
CN204542479U (en) * 2015-04-07 2015-08-12 王录军 The anti-reflux support of a kind of esophagus
CN106308985A (en) * 2015-07-03 2017-01-11 上海交通大学医学院附属新华医院 Anti-backflow biliary tract drainage support

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Address after: 300350 Haijing garden, Haihe Education Park, Jinnan, Tianjin, 135, Tianjin University.

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