CN106974752B - Spiral particle bracket - Google Patents
Spiral particle bracket Download PDFInfo
- Publication number
- CN106974752B CN106974752B CN201710219759.2A CN201710219759A CN106974752B CN 106974752 B CN106974752 B CN 106974752B CN 201710219759 A CN201710219759 A CN 201710219759A CN 106974752 B CN106974752 B CN 106974752B
- Authority
- CN
- China
- Prior art keywords
- particle
- carrier
- spiral
- particle carrier
- chamber
- 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.)
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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
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1002—Intraluminal radiation therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1007—Arrangements or means for the introduction of sources into the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1014—Intracavitary radiation therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N2005/1019—Sources therefor
- A61N2005/1024—Seeds
Abstract
The invention discloses a kind of spiral particle brackets, the present invention includes the particle carrier of tubulose, radion is provided in the particle carrier, particle carrier is in compact arranged spiral status in its natural state, and adjacent coils are detached from when particle carrier both ends tension.The spiral particle bracket of the present invention, when being used on patient, radion is fixed in particle carrier, particle carrier is pulled by thicker spiral status at elongated state, convenient for importing into patient's body, after entering in body, the pulling force to particle carrier is removed, ionophore is retracted into thicker spiral status again, expands the block position of patient's cavity, guarantee the upper and lower smooth of patient's cavity, the radion in particle carrier can also be irradiated treatment to neoplastic lesion position.The particle carrier of tubulose of the present invention can easily carry radion, and radion is avoided to fall in human body, impact to the health tissues of patient.
Description
Technical field
The present invention relates to a kind of spiral particle brackets.
Background technique
In malignant tumour field, because cavity caused by tumour blocks, the patient that can not be performed the operation, place Ultimum Ti or
Plastic stent makes it restore cavity patency, at present clinical more common.Ultimum Ti or plastic stent function only as
Supporting role restores the unobstructed of lumen, but cannot inhibit the growth of tumour, and tumour will continue to along standoff gap after 3 to 5 months
Internal stent is grown to, cause lumen tumprigenicity narrow again or is blocked.
The particle bracket of clinical use is shape shape-memory titanium-nickel alloy net shape structure at present, and radion bundlees on the metal filament,
It is directed into before cavity in contraction state, after importing, grid Automatic-expanding, expansion obstruction lumen.Because of the special structure of biliary tract, biliary tract
Particle bracket is sleeve type, advanced bare bracket, after be inserted in a simple particle bracket, but the particle branch of the structure at present
Frame, more difficult when bundling particle, easy to fall off, operation is implanted into complicated than ordinary stent.
Summary of the invention
The technical problem to be solved by the present invention is to：A kind of spiral particle bracket of radion easy to carry is provided.
To solve the above-mentioned problems, the present invention includes the particle carrier of tubulose, and radiation is provided in the particle carrier
Particle, particle carrier are in compact arranged spiral status in its natural state, the adjacent coils when particle carrier both ends tension
It is detached from.
For the ease of particle carrier to be placed in human body, particle carrier of the present invention includes guidewire lumen and particle
Chamber, guidewire lumen and particle chamber are not connected to mutually, and the radion setting is intracavitary in particle, are led when being provided with support in guidewire lumen
When silk, particle carrier is in the state of elongation.
For the ease of setting guidewire lumen and particle chamber, particle carrier of the present invention includes two arranged side by side and close
The lumen to fit together, one of lumen are the guidewire lumen, another lumen is the particle chamber.
In order to make the radion in particle chamber closer from neoplastic lesion position, allows radion to reach optimal and control
Therapeutic effect, particle chamber of the present invention are located at the outside of guidewire lumen.
For the ease of fixing radion in particle chamber, particle of the present invention is intracavitary to be provided with the fixed dress of particle
It sets, the fixed device of the particle includes conducting filament and multiple resilient support blocks that interval is fixed on conducting filament, resilient support
Block is cylindrical, and the outer diameter of cylinder is less than the internal diameter of particle chamber, is provided with particle groove on the resilient support block upper surface,
The radion is stuck in particle groove, and when deformation occurs for particle carrier, the conducting filament occurs with particle carrier
Corresponding deformation.
In order to avoid human body fluid is flowed into guidewire lumen and particle chamber, the bottom of guidewire lumen of the present invention and particle chamber
End seals, and the upper end of guidewire lumen and particle chamber is provided with capping, the upper end of the conducting filament and the capping on particle chamber
Connection.Conducting filament is connected with the capping on particle chamber, convenient for taking out conducting filament, is conducive to the recycling and processing of radion.
In order to avoid particle carrier scratches tissue, the edge of particle carrier of the present invention is rounded corner.
Present invention has the advantages that：When the spiral particle stenter to implant of the present invention, radion is fixed on particle carrier
It is interior, particle carrier is pulled by thicker spiral status into elongated state, convenient for importing at obstruction of biliary tract, is being entered in body
Afterwards, the pulling force to particle carrier is removed, particle carrier is retracted into thicker spiral status again, expands the obstruction of patient's cavity
Position guarantees upper and lower smooth, the radion sustained release gamma ray in particle carrier of patient's cavity, conjugates to neoplastic disease
Carry out radiotherapy is set, can not only play the role of supporting cavity drainage but also plays the role of inhibiting tumour growth.The present invention with
Existing particle bracket is compared, and the particle bracket of helix carries particle conveniently, and release operation is primary to be completed, and is operated relatively simple
It is single.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic cross-section of particle carrier；
Fig. 3 is the structural schematic diagram of the fixed device of particle；
Fig. 4 is the schematic top plan view of carrier block.
Wherein：1, particle carrier, 2, guidewire lumen, 3, particle chamber, 31, conducting filament, 32, resilient support block, 321, particle it is recessed
Slot.
Specific embodiment
Spiral particle bracket as shown in Figure 1, the particle carrier 1 including tubulose are provided in the particle carrier 1
Radion, particle carrier 1 is in compact arranged spiral status in its natural state, adjacent when 1 both ends tension of particle carrier
Spiral coil is detached from, and the particle carrier 1 includes two and is arranged side by side and fits closely lumen together, one of lumen
For guidewire lumen 2, another lumen is particle chamber 3, and guidewire lumen 2 is not connected to mutually with particle chamber 3, and the radion is arranged in grain
In sub- chamber 3, when being provided with support seal wire in guidewire lumen 2, particle carrier 1 is in the state of elongation.In order to allow axiolite
Son is closer from tumour, and the particle chamber 3 is located at the outside of guidewire lumen 2.In order to which surface particle carrier 1 causes to draw to tissue
Wound, the edge of particle carrier 1 does round corner treatment.
For the ease of placing radion in guidewire lumen, the fixed device of particle, the particle are provided in particle chamber 3
Fixed device includes conducting filament 31 and multiple resilient support blocks 32 that interval is fixed on conducting filament 31, the resilient support block
32 is cylindrical, and the outer diameter of columned resilient support block 32 is less than the internal diameter of particle chamber 3, table on the resilient support block 32
Particle groove 321 is provided on face, radion is cylindrical, and particle groove 321 is also cylindrical grooves, particle groove 321
Internal diameter be slightly smaller than radion diameter, radion is inserted in particle groove and is stuck in particle groove 321, avoids axiolite
Son is fallen.When deformation occurs for particle carrier 1, with particle carrier 1 corresponding deformation occurs for the conducting filament 31.Described leads
The bottom end of silk chamber 2 and particle chamber 3 is all closed, and the upper end of guidewire lumen 2 and particle chamber 3 is provided with capping, the conducting filament 31
Upper end connect with the capping on particle chamber 3.
Working principle：When using the bracket to patient, support seal wire is fed through in the guidewire lumen 2 of particle carrier 1, is made
Particle carrier 1 stretches elongated, and radion is stuck on resilient support block 32, conducting filament 31 is then sent to particle carrier 1
Particle chamber 3 in, the capping of conducting filament 31 top connection directly covers particle chamber 3, and particle carrier 1 is imported body cavities
At tumour block position, slowly extraction support seal wire, is internally slowly advanced particle carrier 1 while extraction supports seal wire,
Guarantee that particle carrier 1 shrinks the spiral formed and is placed exactly in tumour block position, the lower end of particle carrier 1 bounces back to form a spiral shell
Revolve ring, be stuck at tumour block position, continue extraction support seal wire, until seal wire will be supported to be fully drawn out, in order to avoid body fluid,
Tissue etc. enters obstruction guidewire lumen, will cover on lid on the upper surface of guidewire lumen 2 after extraction support seal wire, particle carrier 1 is complete
Spiral status is retracted into, tumour block position is expanded, keeps its cavity or more unobstructed, the radiation being arranged in the particle carrier 1 of tubulose
Particle discharges gamma ray and inhibits tumour growth.
This spiral particle bracket can be widely applied in the cavity blocked in human body, such as oesophagus, stomach tube, urine
In pipe, bile duct and big vein blood vessel, application prospect is wide, and application value is high.Spiral helicine particle bracket blocks patient's cavity
Position can also play the role of radiotherapy to lesion tumour while expansion, the particle carrier 1 of lumen shape is more convenient to carry radion,
It avoids radion from falling in human body, human health tissue is impacted, patient is easier to receive, and completes to treat in patient
Afterwards, particle carrier 1 is taken out, the capping of particle chamber 3 is extracted, capping takes conducting filament 31 out of together, by radion in elasticity
It dials in carrier block 32 from convenient for the recycling and processing to radion.
Claims (5)
1. a kind of spiral particle bracket, it is characterised in that：Particle carrier including tubulose is provided in the particle carrier
Radion, particle carrier are in compact arranged spiral status in its natural state, the adjacent spiral shell when particle carrier both ends tension
Volution is detached from, and the particle carrier includes guidewire lumen and particle chamber, and guidewire lumen is not connected to mutually with particle chamber, the axiolite
Son setting is intracavitary in particle, and when being provided with support seal wire in guidewire lumen, particle carrier is in the state of elongation, the particle
Carrier includes two and is arranged side by side and fits closely lumen together, and one of lumen is the guidewire lumen, another
Lumen is the particle chamber.
2. spiral particle bracket according to claim 1, it is characterised in that：The particle chamber is located at the outer of guidewire lumen
Side.
3. spiral particle bracket described in any one of -2 according to claim 1, it is characterised in that：The particle is intracavitary
It is provided with the fixed device of particle, the fixed device of the particle includes conducting filament and multiple elasticity that interval is fixed on conducting filament
Carrier block, resilient support block is cylindrical, and the outer diameter of cylinder is less than the internal diameter of particle chamber, on the resilient support block upper surface
It is provided with particle groove, the radion is stuck in particle groove, when deformation occurs for particle carrier, the conducting filament
Corresponding deformation occurs with particle carrier.
4. spiral particle bracket according to claim 3, it is characterised in that：The bottom end of the guidewire lumen and particle chamber
It seals, the upper end of guidewire lumen and particle chamber is provided with capping, and the upper end of the conducting filament and the capping on particle chamber connect
It connects.
5. spiral particle bracket according to claim 4, it is characterised in that：The edge of the particle carrier is down
Fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710219759.2A CN106974752B (en) | 2017-04-06 | 2017-04-06 | Spiral particle bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710219759.2A CN106974752B (en) | 2017-04-06 | 2017-04-06 | Spiral particle bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106974752A CN106974752A (en) | 2017-07-25 |
| CN106974752B true CN106974752B (en) | 2018-11-23 |
Family
ID=59345761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710219759.2A Active CN106974752B (en) | 2017-04-06 | 2017-04-06 | Spiral particle bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106974752B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569766A (en) * | 2017-08-08 | 2018-01-12 | 天津赛德医药研究院有限公司 | A kind of radioactive particle support for cavity tumour Inner irradiation |
| WO2023125905A1 (en) * | 2021-12-31 | 2023-07-06 | 先健科技(深圳)有限公司 | Radiotherapy stent |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2707215Y (en) * | 2004-07-15 | 2005-07-06 | 王德盛 | Biliary tract stent for regional chemotherapy |
| CN200960355Y (en) * | 2006-09-21 | 2007-10-17 | 中国人民解放军第二军医大学 | Pipeline support capable of bearing minitype radioactive particle source |
| CN101854889A (en) * | 2007-11-16 | 2010-10-06 | 麦德托尼克瓦斯科尔勒公司 | Stent made of wire having a spiral channel for drug delivery |
| CN203001679U (en) * | 2012-11-28 | 2013-06-19 | 上海交通大学医学院附属瑞金医院卢湾分院 | Internal irradiation stent for ureter |
| CN103300950A (en) * | 2012-03-07 | 2013-09-18 | 常州乐奥医疗科技有限公司 | Pipeline support capable of carrying drug particles |
| CN203576705U (en) * | 2013-12-13 | 2014-05-07 | 丽水市人民医院 | Biliary stent capable of carrying radioactive particle strip and conveyor for conveying stent |
| CN203647540U (en) * | 2013-12-03 | 2014-06-18 | 王东 | Flow guiding support with radioactive particle sleeve and radioactive particle pusher |
| CN203790087U (en) * | 2014-01-09 | 2014-08-27 | 刘阳 | Radioactive particle stent |
| CN203790088U (en) * | 2014-01-09 | 2014-08-27 | 刘阳 | Spiral straight-cylinder-shaped support |
| CN204275281U (en) * | 2014-09-29 | 2015-04-22 | 潘阳林 | A kind of biliary tract chemotherapy support |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5220613B2 (en) * | 2005-12-02 | 2013-06-26 | ピーエヌエヌ メディカル エイ／エス | Stent |
| US20080103584A1 (en) * | 2006-10-25 | 2008-05-01 | Biosensors International Group | Temporal Intraluminal Stent, Methods of Making and Using |
| CN207462194U (en) * | 2017-04-06 | 2018-06-08 | 张西坤 | Spiral particle stent |
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2017
- 2017-04-06 CN CN201710219759.2A patent/CN106974752B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2707215Y (en) * | 2004-07-15 | 2005-07-06 | 王德盛 | Biliary tract stent for regional chemotherapy |
| CN200960355Y (en) * | 2006-09-21 | 2007-10-17 | 中国人民解放军第二军医大学 | Pipeline support capable of bearing minitype radioactive particle source |
| CN101854889A (en) * | 2007-11-16 | 2010-10-06 | 麦德托尼克瓦斯科尔勒公司 | Stent made of wire having a spiral channel for drug delivery |
| CN103300950A (en) * | 2012-03-07 | 2013-09-18 | 常州乐奥医疗科技有限公司 | Pipeline support capable of carrying drug particles |
| CN203001679U (en) * | 2012-11-28 | 2013-06-19 | 上海交通大学医学院附属瑞金医院卢湾分院 | Internal irradiation stent for ureter |
| CN203647540U (en) * | 2013-12-03 | 2014-06-18 | 王东 | Flow guiding support with radioactive particle sleeve and radioactive particle pusher |
| CN203576705U (en) * | 2013-12-13 | 2014-05-07 | 丽水市人民医院 | Biliary stent capable of carrying radioactive particle strip and conveyor for conveying stent |
| CN203790087U (en) * | 2014-01-09 | 2014-08-27 | 刘阳 | Radioactive particle stent |
| CN203790088U (en) * | 2014-01-09 | 2014-08-27 | 刘阳 | Spiral straight-cylinder-shaped support |
| CN204275281U (en) * | 2014-09-29 | 2015-04-22 | 潘阳林 | A kind of biliary tract chemotherapy support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106974752A (en) | 2017-07-25 |
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