CN107714245A - anti-reflux stent delivery system - Google Patents
anti-reflux stent delivery system Download PDFInfo
- Publication number
- CN107714245A CN107714245A CN201711139228.9A CN201711139228A CN107714245A CN 107714245 A CN107714245 A CN 107714245A CN 201711139228 A CN201711139228 A CN 201711139228A CN 107714245 A CN107714245 A CN 107714245A
- Authority
- CN
- China
- Prior art keywords
- reflux
- guide wire
- inner core
- hollow tube
- stent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000000151 anti-reflux effect Effects 0.000 title claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 206010067171 Regurgitation Diseases 0.000 abstract 4
- 210000003445 biliary tract Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000003211 malignant effect Effects 0.000 description 4
- 210000000941 bile Anatomy 0.000 description 3
- 210000000013 bile duct Anatomy 0.000 description 3
- 206010023129 Jaundice cholestatic Diseases 0.000 description 2
- 201000005267 Obstructive Jaundice Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 210000000936 intestine Anatomy 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 201000009030 Carcinoma Diseases 0.000 description 1
- 206010014418 Electrolyte imbalance Diseases 0.000 description 1
- 208000022072 Gallbladder Neoplasms Diseases 0.000 description 1
- 208000007666 Klatskin Tumor Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010061902 Pancreatic neoplasm Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 201000010312 acute cholangitis Diseases 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 208000006990 cholangiocarcinoma Diseases 0.000 description 1
- 208000003167 cholangitis Diseases 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010175 gallbladder cancer Diseases 0.000 description 1
- 210000003736 gastrointestinal content Anatomy 0.000 description 1
- 208000018060 hilar cholangiocarcinoma Diseases 0.000 description 1
- 238000002350 laparotomy Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 208000015486 malignant pancreatic neoplasm Diseases 0.000 description 1
- 238000009116 palliative therapy Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to an anti-reflux stent conveying system, which comprises a stent conveyor, a hollow tube and a guide wire, wherein the inner diameter of the hollow tube is equal to that of an inner core of the conveyor; one end of the guide wire with a cylinder extends into the hollow tube, and the guide wire is made of metal. The invention is convenient for inserting the inner core of the stent conveyor into the stent from the anti-regurgitation valve end, prevents the anti-regurgitation valve from folding and shrinking at the tail end of the stent and ensures the anti-regurgitation function of the anti-regurgitation valve.
Description
Technical field
The present invention relates to field of medical technology, more particularly to Anti-reflux stent induction system.
Background technology
The various malignant tumours such as cholangiocarcinoma, gallbladder cancer, cancer of pancreas, carcinoma of ampulla and hilar cholangiocarcinoma can cause different parts
Stenosis of bile duct or occlusion, that is, malignant obstructive jaundice.Most of malignant obstructive jaundice has been to cut when making a definite diagnosis
The late tumor removed, its radical excision rate about 10%-27%.For having lost operative chance or having refused operative treatment
The conventional palliative therapy of the patient of Malignent Biliary Obstruction, such as perform the operation in or beyond drain, or even only row laparotomy exploration.Cut open the belly merely
Detecting can often cause that sb.'s illness took a turn for the worse；Interior drainage of biliary tract and intestine is often difficult to be resistant to because operation wound is big to the gerontal patient being in a bad way；Courage
Though pipe external drainage can subtract Huang, because of bile loss, the severe complication such as electrolyte disturbance and bile duct infection, it can also cause patient dead
Die.Biliary stent implantation (endoscopic retrograde biliary drainage, ERBD) is current damages most
Drainage way in small bile, complication rate is low, and drainage effect is good.Advanced Malignant obstruction of biliary tract endoscopic retrograde biliary stent placement is put
The purpose for subtracting Huang can be reached by entering, and be improved the quality of living, and extend life cycle.
The early complication placed after support is mainly acute cholangitis, and its incidence is typically 10% or so.Intestines courage is anti-
Stream is one of the main reason for causing cholangitis, that is, after Stent Implantation at malignant biliary obstruction, food in enteron aisle and
Bacterium can be redirected back into biliary tract, cause retrograde infection.
Patent document CN204192799U, which discloses a kind of antireflux plastics biliary tract rack, includes rack body, in support sheet
The top of body proximal openings is provided with antireflux valve, and its antireflux valve has the function that one-way cock, i.e., only allows bile flow
Enter enteric cavity, some pores on antireflux film valve, increase drainage effect, even if antireflux valve nor affects on when enteric cavity folds
Drainage, prevent intestinal contents from entering biliary system, reduce morbidity frequency.
Bracket conveyer is the assistive device that support is transported to human lesion position in PCI, as shown in figure 5, branch
It is hollow structure that frame conveyer, which includes sleeve pipe (sequence number 7) and inner core (sequence number 1), inner core,.During normal operating, anti-reflux valve should stay
Outside bile duct, direct motion insertion should be inserted in support from anti-reflux valve end by the inner core of bracket conveyer.But due to anti-reflux
Valve is that one-way cock, matter are soft, more time-consuming during insertion, and anti-reflux valve is folded shrinkage in support after inserting
Tail end, it is set to lose anti-reflux effect.
The content of the invention
The present invention is intended to provide Anti-reflux stent induction system, it is easy to the inner core of bracket conveyer from anti-reflux valve end
Insert in support, avoid anti-reflux valve from folding shrinkage in support tail end, ensure its anti-reflux effect.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
Anti-reflux stent induction system, in addition to including bracket conveyer, in addition to hollow tube and guide wire, it is described hollow
The internal diameter of pipe is equal with the internal diameter of the inner core of conveyer, and there is cylinder one end of guide wire, and the external diameter of the cylinder is equal to interior
The internal diameter of core.
Further, one end that the guide wire has cylinder is put in hollow tube.
Wherein, the material of the guide wire is metal.
Wherein, the material of the inner core is plastics；
Further, the material of hollow tube is plastics；
Further, the material of cylinder is plastics.
Compared with prior art, the invention has the advantages that：
The present invention is easy to the inner core of bracket conveyer out of the insertion of anti-reflux valve end support, avoids anti-reflux valve from rolling over
Folded shrinkage ensures its anti-reflux effect in support tail end.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is schematic diagram when hollow tube reeve support struts anti-reflux valve；
Fig. 3 is schematic diagram when inner core injects support；
Schematic diagram when Fig. 4 is hollow tube and guide wire exits support；
Fig. 5 is the schematic diagram of bracket conveyer；
In figure：1- inner cores, 2- hollow tubes, 3- guide wires, 4- cylinders, 5- supports, the anti-reflux valves of 6-, 7- sleeve pipes.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
As shown in figure 1, Anti-reflux stent induction system disclosed by the invention, including bracket conveyer, hollow tube 2 and guiding
Silk 3, the internal diameter of hollow tube 2 is equal with the internal diameter of the inner core 1 of bracket conveyer, and there are cylinder 4, cylinder 4 in one end of guide wire 3
External diameter be equal to inner core 1 internal diameter.
One end that guide wire 3 has cylinder 4 is put in hollow tube 2.Wherein, the material of guide wire 3 is metal.Wherein, it is interior
The material of core 1 is plastics；The material of hollow tube 2 is plastics；The material of cylinder 4 is plastics.
As shown in Fig. 2 by the reversal connection of support 5 on hollow tube 2, one end that guide wire 3 has cylinder 4 is stretched out, cylinder 4
The anti-reflux direct motion of valve 6 is strutted；Then the inner core 1 of bracket conveyer is promoted forward, and the front end of inner core 1 readily enters anti-reflux
Valve 6, as shown in figure 3, guide wire 3 is slowly pushed into inner core 1；As shown in figure 4, finally make inner core 1 continue to push forward,
Hollow tube 2 and guide wire 3 are slowly withdrawn from backward, support 5 has then been inserted on conveyer forward.
Hollow tube 2 can also be substituted with another bracket conveyer, and one end that guide wire 3 has cylinder 4 is put in into the support
In the inner core of conveyer, then the inner core is inserted in support 5.Above-mentioned inner core 1 is guided to insert support 5 in the same manner
In.
The present invention is easy to the inner core of bracket conveyer out of the insertion of anti-reflux valve end support, avoids anti-reflux valve from rolling over
Folded shrinkage ensures its anti-reflux effect in support tail end.
Certainly, the present invention can also have other numerous embodiments, in the case of without departing substantially from spirit of the invention and its essence,
Those skilled in the art can make various corresponding changes and deformation according to the present invention, but these change and become accordingly
Shape should all belong to the protection domain of appended claims of the invention.
Claims (6)
1. Anti-reflux stent induction system, including bracket conveyer, it is characterised in that:Also include hollow tube (2) and guide wire
(3), the internal diameter of the hollow tube (2) is equal with the internal diameter of the inner core (1) of bracket conveyer, and one end of the guide wire (3) has
Cylinder (4), the external diameter of the cylinder (4) are equal to the internal diameter of inner core (1).
2. Anti-reflux stent induction system according to claim 1, it is characterised in that：The guide wire (3) has cylinder
(4) one end is put in hollow tube (2).
3. Anti-reflux stent induction system according to claim 1, it is characterised in that：The material of the guide wire (3) is
Metal.
4. Anti-reflux stent induction system according to claim 1, it is characterised in that：The material of the inner core (1) is modeling
Material.
5. Anti-reflux stent induction system according to claim 1, it is characterised in that：The material of hollow tube (2) is plastics.
6. Anti-reflux stent induction system according to claim 1, it is characterised in that：The material of cylinder (4) is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711139228.9A CN107714245B (en) | 2017-11-16 | 2017-11-16 | Anti-reflux bracket conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711139228.9A CN107714245B (en) | 2017-11-16 | 2017-11-16 | Anti-reflux bracket conveying system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107714245A true CN107714245A (en) | 2018-02-23 |
| CN107714245B CN107714245B (en) | 2023-08-25 |
Family
ID=61216172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711139228.9A Active CN107714245B (en) | 2017-11-16 | 2017-11-16 | Anti-reflux bracket conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107714245B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020032487A1 (en) * | 1998-08-31 | 2002-03-14 | Wilson-Cook Medical Incorporated | Prosthesis having a sleeve valve |
| US20100057185A1 (en) * | 2008-09-04 | 2010-03-04 | Cook Incorporated | Sliding Split-Sleeve Implant Compressor |
| CN103505308A (en) * | 2013-09-29 | 2014-01-15 | 中国人民解放军第二军医大学 | Anti-regurgitation biliary stent |
| US20140277364A1 (en) * | 2013-03-13 | 2014-09-18 | Peritec Biosciences Ltd. | Systems and methods for compressing, crimping and loading a stent |
-
2017
- 2017-11-16 CN CN201711139228.9A patent/CN107714245B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020032487A1 (en) * | 1998-08-31 | 2002-03-14 | Wilson-Cook Medical Incorporated | Prosthesis having a sleeve valve |
| US20100057185A1 (en) * | 2008-09-04 | 2010-03-04 | Cook Incorporated | Sliding Split-Sleeve Implant Compressor |
| US20140277364A1 (en) * | 2013-03-13 | 2014-09-18 | Peritec Biosciences Ltd. | Systems and methods for compressing, crimping and loading a stent |
| CN103505308A (en) * | 2013-09-29 | 2014-01-15 | 中国人民解放军第二军医大学 | Anti-regurgitation biliary stent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107714245B (en) | 2023-08-25 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |