CN108888391A - A kind of non-crossing bracket of monofilament - Google Patents
A kind of non-crossing bracket of monofilament Download PDFInfo
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- CN108888391A CN108888391A CN201810761814.5A CN201810761814A CN108888391A CN 108888391 A CN108888391 A CN 108888391A CN 201810761814 A CN201810761814 A CN 201810761814A CN 108888391 A CN108888391 A CN 108888391A
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- silk
- support body
- bracket
- crossing
- scaffolding thread
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- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000007943 implant Substances 0.000 description 4
- 239000002120 nanofilm Substances 0.000 description 4
- 206010004446 Benign prostatic hyperplasia Diseases 0.000 description 3
- 241000108463 Hygrophila <snail> Species 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
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- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 3
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- 206010028980 Neoplasm Diseases 0.000 description 2
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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
- A61F2/88—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements formed as helical or spiral coils
-
- 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
- A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0008—Fixation appliances for connecting prostheses to the body
- A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes
-
- 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
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)
- Materials For Medical Uses (AREA)
Abstract
The present invention relates to a kind of non-crossing brackets of monofilament, the bracket includes the support body made of scaffolding thread braiding, the support body is support body made of single Zhi Suoshu scaffolding thread braiding, the scaffolding thread is constituted the support body with the non-crossing structure in space, and the support body is the support body that the scaffolding thread is formed by outer contour shape spiral surrounding.The beneficial effects of the invention are as follows：Bracket outer contour shape meets the anatomical structure in affected part, with unique fixed anchor structure, the unexpected displacement of bracket can be prevented, Stent mode is using non-crossing, spiralling single branch bracket thread weaving method, even if placing failure can be taken out by Minimally Invasive Surgery, wound is small.Greatly reduce bracket displacement, foreign body sensation, it is not easy to take out or take out the big risk of wound, avoid the expansion of wound and the generation of inflammation, bring convenience for clinical use.
Description
Technical field
The invention belongs to medical equipment more particularly to a kind of non-crossing brackets of monofilament.
Background technique
With the progress of science and technology, medical intervention, minimally-invasive treatment technology have obtained sufficient development and society is extensive
Approval.The implantation of bracket occupies huge share in intervention, minimally invasive field, can be divided into endovascular stent, such as：Coronary artery bracket,
Thrombus intercepts bracket；With non-vascular inner support, such as：Esophageal stents, intestinal stent, biliary tract rack, ureter bracket, prostate branches
Frame etc..Current market support product on sale is developed according to intravascular stent, and shape is mostly the dissection knot for meeting blood vessel
Structure-circle, the form of bracket are mostly the mesh stents that multiply braiding has intersection construction.Drawback that there are many such brackets, than
Such as：It is easy to be long by easy tissue at affected part epithelial cell package, mesh for circular affected part, rack surface to be only suitable for anatomical structure
Enter, stenter to implant failure after can not invasive manner take out or take out process it is big etc. to patient trauma.Such bracket is removing blood
Other positions application other than pipe is extremely difficult to expected purpose, is easy to cause secondary injury to patient and cause economic loss.
Summary of the invention
The purpose of the present invention is to propose to a kind of technical solution of the non-crossing bracket of monofilament, bracket meets human body implant site solution
Structure is cutd open, and taking-up can be facilitated.
To achieve the goals above, the technical scheme is that：A kind of non-crossing bracket of monofilament, the bracket include adopting
Support body made of being woven with scaffolding thread, the support body are support body made of single Zhi Suoshu scaffolding thread braiding, the bracket
Silk is constituted the support body with the non-crossing structure in space, and the support body is the scaffolding thread by outer contour shape surrounded spiral shape
At support body.
Further, in order to meet implant site anatomical structure, the outer contour shape of the support body includes round and more
Side shape.
Further, the outer contour shape of the support body includes triangle.
Further, the support body is the assembly of two sections of different outer contour shapes.
Further, the shape after the scaffolding thread is unfolded by spiral includes linear silk and curved shape silk.
Further, the shape after the scaffolding thread is unfolded by spiral includes arc line shaped silk and bent silk.
Further, the scaffolding thread is equipped with ring buckle.
Further, the end of the support body is equipped with fixed anchor, and the fixed anchor is single non-crossing structure of branch scaffolding thread
Fixation anchor.
Further, the scaffolding thread includes medical metal wire and medical macromolecular materials silk, the medical metal wire packet
Include 304 medical stainless steel silks, 316L medical stainless steel silk, nitinol alloy wire, platinum alloy silk, zinc magnesium alloy silk, the medical height
Molecular material silk includes polyurethane filament, silicon rubber silk, polyacrylic fibres, polylactic acid silk, poly (glycolide-co-lactide) silk, crosslinked polyethylene
Silk, polyurethane filament, polyester capillaries, polyether-ether-ketone silk.
Further, the contour surface of the support body is coated with macromolecule material film, the macromolecule material film
It is upper to be coated with functional coating.
The beneficial effects of the invention are as follows：Bracket outer contour shape meets the anatomical structure in affected part, has unique fixed anchor
Structure can prevent the unexpected displacement of bracket, and Stent mode is using non-crossing, spiralling single branch scaffolding thread braiding
Method, outer profile are coated with macromolecule material film, and bracket can guarantee opened part cross sectional shape and open shape to the greatest extent
State, even if placing failure can be taken out by Minimally Invasive Surgery, wound is small.It overcomes existing similar circular cross-section and is cross-woven bracket
There are the drawbacks of, greatly reduce bracket displacement, foreign body sensation, it is not easy to take out or take out the big risk of wound, avoid creating
The expansion of mouth and the generation of inflammation, bring convenience for clinical use.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the structure chart of support body of the present invention, and outer contour shape is circle；
Fig. 2 is the outer contour shape figure of support body described in Fig. 1；
Fig. 3 is structure of the invention figure, and support body is curved shape silk surrounded spiral shape；
Fig. 4 is the shape graph of curved shape silk expansion shown in Fig. 3；
Fig. 5 is the structure chart that the present invention is equipped with fixed anchor；
Fig. 6 is the structure chart of support body of the present invention, and outer contour shape is triangle；
Fig. 7 is the outer contour shape figure of support body described in Fig. 6；
Fig. 8 is the structure chart that outer contour shape of the present invention is triangle, and support body is curved shape silk surrounded spiral shape, and is equipped with solid
Determine anchor；
Fig. 9 is the shape graph of curved shape silk expansion shown in Fig. 8, including arc curve shape silk and bending curved shape silk；
Figure 10 is assembly of the support body of the present invention by two sections of different outer contour shapes；
Figure 11 is support body described in Figure 10, and support body is curved shape silk surrounded spiral shape, fixes anchor each other；
Figure 12 is the schematic diagram that support body of the invention takes out through Minimally Invasive Surgery.
Specific embodiment
Such as Fig. 1 to Figure 11, a kind of non-crossing bracket of monofilament, the bracket includes the bracket made of the braiding of scaffolding thread 10
Body, the support body are support bodies made of single Zhi Suoshu scaffolding thread braiding, and the scaffolding thread is constituted with the non-crossing structure in space
The support body, the support body are the support bodies that the scaffolding thread is formed by outer contour shape spiral surrounding, institute as shown in Figure 1, Figure 2
Show.
In order to meet implant site anatomical structure, the outer contour shape of the support body includes circle（As shown in Figure 1, Figure 2）With
Polygon（Such as Fig. 6, Fig. 7）.
As a kind of more specific polygon support body, the outer contour shape of the support body includes triangle shaped like Fig. 6, figure
Shown in 7.In addition, the outer contour shape of support body is also possible to other polygons or meets anatomical structure various shapes.
The support body is that the assembly of two sections of different outer contour shapes is as shown in Figure 10, Figure 11.
Shape after the scaffolding thread is unfolded by spiral includes that linear silk and curved shape silk are as shown in Figure 3, Figure 4.
As the shape after the expansion of more specific curved bracket silk, the shape after the scaffolding thread is unfolded by spiral includes
Arc line shaped silk（11,12）With bent silk（13）.
The scaffolding thread is equipped with ring buckle 14.
The end of the support body is equipped with fixed anchor, and the fixed anchor is the fixation anchor of single non-crossing structure of branch scaffolding thread
20, as shown in Figure 5.
The scaffolding thread includes medical metal wire and medical macromolecular materials silk, and the medical metal wire includes 304 medical
Stainless steel wire, 316L medical stainless steel silk, nitinol alloy wire, platinum alloy silk, zinc magnesium alloy silk, the medical macromolecular materials silk
Including polyurethane filament, silicon rubber silk, polyacrylic fibres, polylactic acid silk, poly (glycolide-co-lactide) silk, crosslinked polyethylene silk, polyurethane
Silk, polyester capillaries, polyether-ether-ketone silk.The scaffolding thread of the medical metal is surface treated wire, the surface treatment
Including anodic oxidation, plasma spraying, HA coating spraying and sintering.
The contour surface of the support body is coated with macromolecule material film 30, is coated on the macromolecule material film
Functional coating.The macromolecule material film includes that silicon rubber film, polyurethane film, silicon-based polyurethane film, polylactic acid are thin
Film, polylactide film；The functional coating includes superslide coating, antibacterial super slippery coating, anti-static coating, prostate is inhibited to increase
The coating of crude drug object, coating, the coating containing radiotherapy property particle for inhibiting tumor cell proliferation drug.
Embodiment one：
As shown in Figure 1, Figure 2, the non-crossing bracket of a kind of monofilament, including the support body 10 made of scaffolding thread braiding.
The outer contour shape of the support body of the present embodiment is round.Support body is using single branch scaffolding thread by outer contour shape
The bracket that spiral surrounding is formed, that is, form helix shape, scaffolding thread made to be constituted support body, scaffolding thread with the non-crossing structure in space
Shape after being unfolded by spiral is linear silk.
The adoptable material of scaffolding thread includes medical metal and medical macromolecular materials.Medical metal includes common medical gold
Belong to, such as 304 medical stainless steels, 316L medical stainless steel；Metal with shape memory function, such as Nitinol, platinum alloy；Tool
There are absorbable or degradability metal, such as zinc magnesium alloy；And the metal with radiotherapy function.Branch made of medical metal
Frame silk can be by surface-treated metal silk, and anodic oxidation, plasma spraying, HA coating spraying and burning can be used in surface treatment
The techniques such as knot.Medical macromolecular materials include common high molecular materials, such as polyurethane, silicon rubber, polypropylene；With can receive or
The high molecular material of person's degradability, such as polylactic acid, poly (glycolide-co-lactide)；Macromolecule material with shape memory function
Material, such as crosslinked polyethylene, polyurethane, polyester；High molecular material with crystalline state or semi-crystalline, such as polyether-ether-ketone.
The non-crossing bracket of the monofilament of the present embodiment is the circular bracket of simple outer profile, and section is circular bracket
It is the maintenance of similar round cavity suitable for anatomical structure, such as ureter, lower urethra.
The contour surface of support body（Along the circumferential surface of spiral surrounding）Coated with macromolecule material film 30.Macromolecule material
Silicon rubber, polyurethane, silicon-based polyurethane, polylactic acid, polylactide lactide can be used in material film.A kind of above-mentioned high score can be used
The combination of sub- thin-film material or a variety of high molecular film materials.
Functional coating is coated on macromolecule material film.Functional coating is according to the specific clinical painting for needing to be arranged
Layer including superslide coating, antibacterial super slippery coating, anti-static coating, the coating for inhibiting prostatic hyperplasia agents, inhibits tumour cell
The coating of hyperproliferation agent, coating containing radiotherapy property particle etc..
Embodiment two：
Such as Fig. 3, Fig. 4, a kind of non-crossing bracket of monofilament, the present embodiment is a kind of improvement of embodiment one.
In the present embodiment, the shape after scaffolding thread is unfolded by spiral is curved shape silk.Curve shape after expansion is arc
Curved shape silk, bending place have transition arc 15.Whole bendings of arc curve shape silk can have identical shape and height
（11）, the bending of arc curve shape silk can also be to be staggered arc with different height（12）.
The non-crossing bracket of the monofilament of the present embodiment more effectively can support affected part to organize.
Embodiment three：
Such as Fig. 5, a kind of non-crossing bracket of monofilament, the present embodiment is a kind of improvement of embodiment one or embodiment two.
In the present embodiment, the contour surface of support body 10（Along the circumferential surface of spiral surrounding）It is thin coated with high molecular material
Film 30.Silicon rubber, polyurethane, silicon-based polyurethane, polylactic acid, polylactide lactide can be used in macromolecule material film.It can adopt
With the combination of a kind of above-mentioned high molecular film material or a variety of high molecular film materials.
Functional coating is coated on macromolecule material film.Functional coating is according to the specific clinical painting for needing to be arranged
Layer including superslide coating, antibacterial super slippery coating, anti-static coating, the coating for inhibiting prostatic hyperplasia agents, inhibits tumour cell
The coating of hyperproliferation agent, coating containing radiotherapy property particle etc..
Example IV：
Such as Fig. 5, a kind of non-crossing bracket of monofilament, the present embodiment is a kind of improvement of embodiment one, embodiment two or embodiment three.
In the present embodiment, an end of support body 10 is equipped with fixed anchor 20.Fixed anchor is single non-crossing knot of branch scaffolding thread
The fixation anchor of structure.The scaffolding thread of scaffolding thread and support body that fixed anchor is made is identical material.
Fixed anchor is rounded composition using curved scaffolding thread.
Embodiment five：
Such as Fig. 6, Fig. 7, a kind of non-crossing bracket of monofilament, including the support body 10 made of scaffolding thread braiding.The present embodiment is
A kind of structure change of embodiment one.
In the present embodiment, the outer contour shape of support body is triangle.
The present embodiment is suitable for the maintenance that anatomical structure is similar triangle cavity, such as the cavity of prostatic.
Embodiment six：
Such as Fig. 8, Fig. 9, a kind of non-crossing bracket of monofilament, including the support body 10 made of scaffolding thread braiding.The present embodiment is
A kind of improvement of embodiment five.
In the present embodiment, the shape after scaffolding thread expansion is bent silk 13.Bent silk has the right angle 16 of bending.
The braiding shape of the present embodiment is primarily adapted for use in benign prostatic hyperplasis, the patient of prostatic part bit position excision.
Embodiment seven：
Such as Fig. 9, Figure 10, a kind of non-crossing bracket of monofilament, including the support body 10 made of scaffolding thread braiding.The present embodiment is
A kind of improvement of embodiment six.
In the present embodiment, scaffolding thread is equipped with ring buckle 14.Ring buckle is scaffolding thread around the latch closure formed.
The bracket integrated support power of the present embodiment is greater than embodiment six.The smooth ability of cavity is maintained with better.
Embodiment eight：
Such as Fig. 9, Figure 10, a kind of non-crossing bracket of monofilament, including the support body 10 made of scaffolding thread braiding.The present embodiment is
A kind of improvement of embodiment five.
Shape after scaffolding thread is unfolded by spiral is arc line shaped silk 11.Turning point has transition arc 15.Arc line shaped silk
All bending can have identical shape and height.
The Stent shape of the present embodiment is primarily adapted for use in the excision of malignant prostate proliferative fraction or complete resection,
Or the patient after prostatic radiotherapy, chemotherapy.
Embodiment nine：
Such as Fig. 9, Figure 10, a kind of non-crossing bracket of monofilament, including the support body 10 made of scaffolding thread braiding.The present embodiment is
A kind of improvement of embodiment eight.
In the present embodiment, the bending of arc line shaped silk 12 is the arc that is staggered with different height.
The bracket integrated support power of the present embodiment is greater than embodiment eight.The smooth ability of cavity is maintained with better.
Embodiment ten：
As shown in Figure 10, Figure 11, the non-crossing bracket of a kind of monofilament, including the support body 10 made of scaffolding thread braiding.This reality
Apply a kind of combination that example is embodiment one and embodiment five.
The support body is that the assembly of two sections of different outer contour shapes is as shown in Figure 10, Figure 11.Two sections of different outer profiles
It is connected between the assembly of shape by monofilament 17.
The assembly of two sections of different outer contour shapes can also be each other as the fixation anchor of other side.
It is round and triangle structure that outer contour shape, which has been used in combination, in the bracket of the present embodiment, as patient simultaneously with
Hyperplasia of prostate and lower ankylurethria, the bracket of the present embodiment have better effect, are easier to place.
The non-crossing bracket of the monofilament of above-described embodiment is by treated single branch scaffolding thread（Sub-thread silk or single synnema）It compiles
Non-crossing, the cated overlay film frame of tool knitted, and have and carry medicine and slow-release function, due to being the non-friendship intersection construction of monofilament,
It can more conveniently be taken out through Minimally Invasive Surgery, as shown in figure 12, having prevents shift function, can guarantee cavity continuous openness shape
State.
Single branch scaffolding thread refers to that sub-thread silk or single synnema, the material of scaffolding thread can be shape memory metal（As NiTi closes
Gold）, other metals（Such as 306L）Perhaps the metal with radioactive element or it is nonmetallic and have crystalline state and non-crystalline
High molecular polymer and high molecular polymer with shape memory function.
The main body of bracket uses spiral during the non-crossing braiding referred to（Or decline）Weaving manner, braiding
Material does not generate intersection.
The non-crossing bracket of monofilament can be made into a variety of outer contour shapes for meeting anatomical structure.The anatomical structure that meets refers to
Contoured cradle meets affected part anatomical structure or physiological structure, and exterior cross-section can be closure or non-closed polygonal（Such as
Triangle）Or similar polygon（Similar triangle, apex circular arc are excessive）, round, other abnormity.It can be a kind of shape
Shape is also possible to the combination of various shapes, can use monofilament at combination（Sub-thread silk or single synnema）Connection.Scaffold three-dimensional is vertical
Body structure is similar cylinder, rotary table, circular cone, multiple edge body（Such as triangular prism）, polyhedron and irregular stereo structure etc. one or
Multiple combinations.
Overlay film refers to timbering material（Scaffolding thread）It is uniformly wrapped up by macromolecule membrane, the outer surface of bracket（Cradle wall）Uniformly
Wrapped up by macromolecule membrane.The high molecular film material has biocompatibility, or has biodegradability or biology
Absorbability energy.
Functional coating refers on bracket film（Inside or outside or inner side and outer side are simultaneously）Painting with biology
Layer, for example superslide coating or antibacterial super slippery coating, prevent calculus coating etc..One or several kinds of combinations.
Carry medicine refer to the place that contact on overlay film with tissue be coated with inhibit epithelial tissue growth, the drug that wraps up,
It is either coated with and inhibits benign or neoplasm, the drug of tumour.
Drug is dispersed in a kind of high molecular material on the bracket that slow-release function refers to, the high molecular material have by
Gradually discharge the ability of drug molecule.Keep drug gradual, is released with reasonable concentration, act on affected part.
The non-crossing bracket of monofilament facilitates Minimally Invasive Surgery to take out, no matter the bracket is permanent placement or interim placement, such as
Fruit bracket comes across the clinical expected state not being consistent（Grown into as tissue occur in stent migration, bracket, bracket can not minimally invasive cavity
It is open etc.）, clinic needs to take out, and due to being the non-friendship intersection construction of monofilament, which can take out under minimally invasive mode, take out
Process will not bring the risk and wound of similar open surgery to patient.The advantages of braiding non-crossing using monofilament, is mainly reflected in
In the minimally invasive taking-up of bracket, bracket of the invention is during taking-up, since unique monofilament divides interlacing method, in space
It does not intersect in structure, when taking-up applies unidirectional traction force, and under the action of unidirectional traction force, bracket is by three-dimensional space knot
Structure becomes two-dimensional linear structure, and taking-up is minimally invasive, easy to operate.
The non-crossing bracket of monofilament is with displacement function is prevented, and bracket is being in place and can strut automatically, with present position
The anatomical structure at the place of setting matches, and can prevent the unexpected movement of bracket, and bracket also can have for fixing anchor, this is fixed
The section of anchor can be one of polygon, cylinder, rotary table, circular cone or abnormity or several combinations, and also can be used can
Absorbable suture line is fixed.
The non-crossing bracket of monofilament can continue to guarantee channel opener state, the dissection knot of bracket cross section shape and implant site
Structure or physiology, pathologic structure are coincide, and this structure belongs to a kind of structure for being most difficult to closure.
The non-crossing bracket of monofilament has individual implantation instrument, and the non-crossing bracket of monofilament can be shunk in implanting device, plants
Affected part can be reached with the mode of minimally invasive intervention in endoscope or under the guide of the medical imagings mode such as x-ray, ultrasound by entering device,
It can strut after the non-crossing bracket release of monofilament, coincide with affected part anatomical structure automatically.
By adopting the above technical scheme, the non-crossing stent collapses of monofilament can strut after reaching affected part automatically in pusher,
Bracket cross section meets the anatomical structure in affected part, has unique fixed structure, which can be using monofilament mode and bracket master
Body connection can prevent the unexpected displacement of bracket, and weaving manner uses non-crossing spiralling monofilament weaving method, compile
The bracket knitted uniformly is coated with macromolecule material film, and film can carry out coating according to the demand in specific affected part and carry at medicine
Reason, the bracket can guarantee opened part cross sectional shape and open state to the greatest extent, can be by minimally invasive even if placing failure
Operation is taken out, and wound is small, thus thoroughly overcome existing similar circular cross-section interlacing bracket there are the drawbacks of, greatly subtract
Bracket displacement, foreign body sensation are lacked, it is not easy to take out or take out the big disadvantage of wound, avoid the expansion of wound and the hair of inflammation
It is raw, to inhibit some column adverse effects brought by this process, brought convenience for clinical use.
Claims (10)
1. a kind of non-crossing bracket of monofilament, the bracket includes the support body made of scaffolding thread braiding, which is characterized in that institute
Stating support body is support body made of single Zhi Suoshu scaffolding thread braiding, and the scaffolding thread is constituted the branch with the non-crossing structure in space
Frame body, the support body are the support bodies that the scaffolding thread is formed by outer contour shape spiral surrounding.
2. the non-crossing bracket of a kind of monofilament according to claim 1, which is characterized in that the outer contour shape of the support body
Including round and polygon.
3. the non-crossing bracket of a kind of monofilament according to claim 2, which is characterized in that the outer contour shape of the support body
Including triangle.
4. the non-crossing bracket of a kind of monofilament according to claim 2, which is characterized in that the support body is outside two sections of differences
The assembly of chamfered shape.
5. the non-crossing bracket of a kind of monofilament according to claim 1, which is characterized in that after the scaffolding thread is by spiral expansion
Shape include linear silk and curved shape silk.
6. the non-crossing bracket of a kind of monofilament according to claim 5, which is characterized in that after the scaffolding thread is by spiral expansion
Shape include arc line shaped silk and bent silk.
7. the non-crossing bracket of a kind of monofilament according to claim 5, which is characterized in that the scaffolding thread is equipped with ring buckle.
8. the non-crossing bracket of a kind of monofilament according to claim 1, which is characterized in that the end of the support body is equipped with solid
Determine anchor, the fixed anchor is the fixation anchor of single non-crossing structure of branch scaffolding thread.
9. the non-crossing bracket of a kind of monofilament according to claim 1, which is characterized in that the scaffolding thread includes medical metal
Silk and medical macromolecular materials silk, the medical metal wire include 304 medical stainless steel silks, 316L medical stainless steel silk, NiTi
Alloy wire, platinum alloy silk, zinc magnesium alloy silk, the medical macromolecular materials silk include polyurethane filament, silicon rubber silk, polypropylene
Silk, polylactic acid silk, poly (glycolide-co-lactide) silk, crosslinked polyethylene silk, polyurethane filament, polyester capillaries, polyether-ether-ketone silk.
10. the non-crossing bracket of a kind of monofilament according to claim 1, which is characterized in that the contour surface of the support body
Coated with macromolecule material film, functional coating is coated on the macromolecule material film.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761814.5A CN108888391A (en) | 2018-07-12 | 2018-07-12 | A kind of non-crossing bracket of monofilament |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761814.5A CN108888391A (en) | 2018-07-12 | 2018-07-12 | A kind of non-crossing bracket of monofilament |
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| CN201810761814.5A Withdrawn CN108888391A (en) | 2018-07-12 | 2018-07-12 | A kind of non-crossing bracket of monofilament |
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| CN110584849A (en) * | 2019-10-14 | 2019-12-20 | 江苏诺瑞思医疗器械有限公司 | Shape memory alloy coated anchor bracket and manufacturing method thereof |
| CN111228003A (en) * | 2020-01-13 | 2020-06-05 | 李功俊 | Nickel-titanium alloy stent for treating megacolon disease |
| CN111513899A (en) * | 2020-04-28 | 2020-08-11 | 刘卫辉 | Cystic duct expansion bracket and cystic duct expansion device formed by same |
| CN113081419A (en) * | 2021-03-01 | 2021-07-09 | 东华大学 | Developable recyclable self-expanding ureteral stent and preparation method thereof |
| CN113197707A (en) * | 2021-06-22 | 2021-08-03 | 上海星伙医疗科技有限公司 | Prostate urethra support with recovery structure |
| CN118873305A (en) * | 2024-08-20 | 2024-11-01 | 复旦大学附属眼耳鼻喉科医院 | Degradable Eustachian tube stent and degradable Eustachian tube stent system |
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| CN118873305A (en) * | 2024-08-20 | 2024-11-01 | 复旦大学附属眼耳鼻喉科医院 | Degradable Eustachian tube stent and degradable Eustachian tube stent system |
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