CN107518967B - Tectorial membrane support conveyer - Google Patents
Tectorial membrane support conveyer Download PDFInfo
- Publication number
- CN107518967B CN107518967B CN201610453202.0A CN201610453202A CN107518967B CN 107518967 B CN107518967 B CN 107518967B CN 201610453202 A CN201610453202 A CN 201610453202A CN 107518967 B CN107518967 B CN 107518967B
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- CN
- China
- Prior art keywords
- tube
- bracket
- shaft
- sheath
- pipe
- 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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Links
- 210000002489 tectorial membrane Anatomy 0.000 title claims abstract description 13
- 238000002560 therapeutic procedure Methods 0.000 claims abstract description 25
- 210000003128 head Anatomy 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910001385 heavy metal Inorganic materials 0.000 claims description 4
- 206010002329 Aneurysm Diseases 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 206010028980 Neoplasm Diseases 0.000 description 5
- 208000007536 Thrombosis Diseases 0.000 description 5
- 210000000709 aorta Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000002251 Dissecting Aneurysm Diseases 0.000 description 1
- 208000001750 Endoleak Diseases 0.000 description 1
- 206010064396 Stent-graft endoleak Diseases 0.000 description 1
- 208000007474 aortic aneurysm Diseases 0.000 description 1
- 206010002895 aortic dissection Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 231100000216 vascular lesion Toxicity 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
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)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a covered stent conveyer, and belongs to the field of medical appliances. A tectorial membrane stent conveyer, which comprises a guide head (1), a catheter (2), a shaft tube (3), a sheath tube (4), a sheath tube handle (5) and a shaft tube handle (6); the front end of the catheter (2) is sleeved in the guide head (1), the shaft tube (3) is sleeved on the catheter (2), the rear end of the catheter (2) is fixedly connected with the shaft tube (3), the sheath tube (4) is sleeved on the shaft tube (3), the shaft tube (3) is further provided with a support positioning piece (32), the front end of the sheath tube handle (5) is provided with a locking knob (51), the relative position of the sheath tube (4) can be fixed by the locking knob, and an interventional therapy tube (7) is arranged between the sheath tube (4) and the shaft tube (3). The invention realizes the simultaneous operation of the covered stent and the intravascular interventional therapy, is simple, safe, quick and effective, has small damage and quick recovery, opens up a new way for the treatment of the aneurysm, and improves the treatment efficiency and the treatment effect.
Description
Technical Field
The invention belongs to the field of medical appliances, and discloses a covered stent conveyer.
Background
Interventional therapy of aneurysms and aortic dissection is a new technique applied clinically in recent years. The principle is that a section of tectorial membrane bracket with proper size is pre-loaded into a conveying and releasing device, then is guided into a human body, and is released at the diseased region of the aorta and tightly attached to the wall of the aorta under the monitoring of X-ray equipment, thereby blocking the way of obtaining blood at the diseased region, leading the diseased region of the aorta to gradually form thrombus, eliminating the danger of massive hemorrhage caused by the rupture of the aorta and achieving the treatment purpose.
Various tectorial stents have been designed in the prior art to promote the effect of blocking the lumen of the aneurysm and diverting blood, but complications such as endoleak often occur during the procedure, so that the speed of the intra-luminal thrombosis of the aneurysm is relatively slow, and the risk of rupture and hemorrhage still exists. There is therefore a need for a therapeutic method and corresponding medical device that increases the rate of thrombosis in the lumen of an aortic aneurysm.
Disclosure of Invention
The invention mainly aims to provide a covered stent conveyor for accelerating thrombus in an aneurysm cavity.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A tectorial membrane stent conveyer, which comprises a guide head (1), a catheter (2), a shaft tube (3), a sheath tube (4), a sheath tube handle (5) and a shaft tube handle (6); the front end of the catheter (2) is sleeved in the guide head (1), the shaft tube (3) is sleeved on the catheter (2), the rear end of the catheter (2) is fixedly connected with the shaft tube (3), the sheath tube (4) is sleeved on the shaft tube (3), the shaft tube (3) is further provided with a support positioning piece (32), the front end of the sheath tube handle (5) is provided with a locking knob (51), the relative position of the sheath tube (4) can be fixed by the locking knob, and an interventional therapy tube (7) is arranged between the sheath tube (4) and the shaft tube (3).
The end of the guide head (1) is fixedly connected with an annular protection ring (11), and the head end of the shaft tube (3) is provided with a bracket locking piece (31) which is matched with the annular protection ring (11) at the end of the guide head to lock the bare metal bracket at the head end of the tectorial membrane bracket (8) in the annular protection ring.
The area between the bracket locking piece (31) and the bracket positioning piece (32) is used for placing the covered bracket (8), and the area and the sheath tube (4) form an annular cavity.
The head end of the interventional therapy tube (7) is positioned in an annular cavity between the shaft tube and the sheath tube and is positioned outside the tectorial membrane bracket (8), and the tail end of the interventional therapy tube (7) is arranged on the sheath tube handle (5) and is connected with an injection interface (52).
The support locating piece (32) is of a hollow pipe structure, and the shaft pipe (3) and the guide pipe (2) penetrate through the support locating piece (32).
The outer circumferential surface of the bracket positioning piece (32) is textured.
The bracket locating piece (32) is axially provided with a groove (321) or a through hole (322).
The annular protection ring (11) is made of heavy metal and alloy thereof, stainless steel or harder self-developing polymer materials.
The bracket locking piece (31) adopts heavy metal and alloy thereof, stainless steel or harder self-developing polymer material.
The front end of the sheath tube (4) is provided with a developing mark (41).
When the invention is used, one guide wire is firstly sent to the diseased vessel, then the covered stent conveyer is gradually sent to the diseased region along the guide wire (the guide wire is inserted into the catheter (2)), the sheath tube (4) is removed, and the front end of the covered stent (8) is released firstly and then the rear end of the covered stent is released. Adjusting the shaft tube handle (6), moving out the bracket locking piece (31) at the end of the shaft tube (3) outside the annular protection ring (11), releasing the bare metal bracket at the end of the covered stent (8), and completely supporting the released covered stent (8) at the vascular lesion position; through an injection interface (52) on the sheath handle (5), the sealant or the spring ring acceptable to human bodies is injected into the tumor cavity between the covered stent and the tumor wall through the interventional therapy tube (7), so that the thrombus formation in the tumor cavity is accelerated. The sheath tube handle (5) is operated to restore the sheath tube (4) to the original position, the sheath tube is fixed through the locking knob (51), and the conveyor is withdrawn from the body by operating the shaft tube handle (6).
The invention introduces the interventional therapy tube into the covered stent conveyor for the first time, improves the traditional operation treatment method of the operation, and can inject the sealing glue or spring ring acceptable by human body into the tumor cavity through the interventional therapy tube before or after the covered stent is released according to the specific illness state of a patient. Effectively fills the tumor cavity outside the covered stent, reduces the occurrence of internal leakage and accelerates the healing of the aneurysm.
The invention realizes the sequential release of the covered stent and the sealing glue/sealing ring in the same operation, does not need to puncture and inject the patient, has simple, safe, rapid and effective intravascular interventional therapy operation, small damage and quick recovery, develops a new path for the treatment of the aneurysm, and improves the treatment efficiency and the treatment effect.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention
FIG. 2 is a schematic view of the structure of the stent graft according to embodiment 1 of the present invention
FIGS. 3-1 and 3-2 are partial schematic structural views of a stent fastener
FIG. 4 is a schematic structural view of embodiment 2 of the present invention
Wherein, 1: a guide head; 2a conduit; 3: a shaft tube; 4, sheath tube; 5: a sheath handle; 6: a shaft tube handle; 7: an interventional therapy tube; 8: a stent graft; 11: fixedly connecting an annular protection ring; 31: a bracket lock; 32: a bracket positioning member; 321: a groove; 322 through holes; 41: developing the mark; 51: a locking knob; 52: an injection port.
Detailed Description
Example 1
Referring to fig. 1, 2 and 3-1, the tectorial membrane stent conveyer comprises a guide head (1), a catheter (2), a shaft tube (3), a sheath tube (4), a sheath tube handle (5) and a shaft tube handle (6); the front end of the catheter (2) is sleeved in the guide head (1), the shaft tube (3) is sleeved on the catheter (2), the rear end of the catheter (2) is fixedly connected with the shaft tube (3), the sheath tube (4) is sleeved on the shaft tube (3), the shaft tube (3) is further provided with a support positioning piece (32), the front end of the sheath tube handle (5) is provided with a locking knob (51), the relative position of the sheath tube (4) can be fixed by the locking knob, and an interventional therapy tube (7) is arranged between the sheath tube (4) and the shaft tube (3). The tail end of the guide head (1) is fixedly connected with an annular protection ring (11), the head end of the shaft tube (3) is provided with a bracket locking piece (31) which is matched with the annular protection ring (11) at the tail end of the guide head to plug the bare metal bracket at the head end of the tectorial membrane bracket (8) in the annular protection ring. The area between the stent locking piece (31) and the stent positioning piece (32) is used for placing the covered stent (8), and the area and the sheath tube (4) form an annular cavity. The head end of the interventional therapy tube (7) is positioned in the annular chamber between the shaft tube and the sheath tube, and the tail end of the interventional therapy tube (7) is arranged on the sheath tube handle (5) and is connected with an injection interface (52). The support locating piece (32) is of a hollow pipe structure, and the shaft pipe (3) and the guide pipe (2) penetrate through the support locating piece (32). The bracket locating piece (32) is axially provided with a groove (321) for accommodating a local tube body of the interventional therapy tube (7), so that the friction force between the interventional therapy tube (7) and the sheath tube (4) can be reduced, and the operation is convenient. The annular protection ring (11) and the bracket locking piece (31) are made of stainless steel materials. The front end of the sheath tube (4) is provided with a developing mark (41).
Examples
Referring to fig. 4 and 3-2, a stent graft conveyor comprises a guide head (1), a catheter (2), a shaft tube (3), a sheath tube (4), a sheath tube handle (5) and a shaft tube handle (6); the front end of the catheter (2) is sleeved in the guide head (1), the shaft tube (3) is sleeved on the catheter (2), the rear end of the catheter (2) is fixedly connected with the shaft tube (3), the sheath tube (4) is sleeved on the shaft tube (3), the shaft tube (3) is further provided with a support positioning piece (32), the front end of the sheath tube handle (5) is provided with a locking knob (51), the relative position of the sheath tube (4) can be fixed by the locking knob, and an interventional therapy tube (7) is arranged between the sheath tube (4) and the shaft tube (3). The tail end of the guide head (1) is fixedly connected with an annular protection ring (11), the head end of the shaft tube (3) is provided with a bracket locking piece (31) which is matched with the annular protection ring (11) at the tail end of the guide head to plug the bare metal bracket at the head end of the tectorial membrane bracket (8) in the annular protection ring. The area between the stent locking piece (31) and the stent positioning piece (32) is used for placing the covered stent (8), and the area and the sheath tube (4) form an annular cavity. The head end of the interventional therapy tube (7) is positioned in the annular chamber between the shaft tube and the sheath tube, and the tail end of the interventional therapy tube (7) is arranged on the sheath tube handle (5) and is connected with an injection interface (52). The support locating piece (32) is of a hollow pipe structure, and the shaft pipe (3) and the guide pipe (2) penetrate through the support locating piece (32). The bracket locating piece (32) is provided with a through hole (322) along the axial direction for accommodating the local tube body of the interventional therapy tube (7), so that the friction force between the interventional therapy tube (7) and the sheath tube (4) can be reduced, and the operation is convenient. The annular protection ring (11) and the bracket locking piece (31) are made of harder self-developing polymer materials. The front end of the sheath tube (4) is provided with a developing mark (41).
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (5)
1. A tectorial membrane stent conveyer, which comprises a guide head (1), a catheter (2), a shaft tube (3), a sheath tube (4), a sheath tube handle (5) and a shaft tube handle (6); the guide head is arranged in the guide head (1) in a sleeved mode at the front end of the guide pipe (2), the guide pipe (2) is sleeved with the shaft pipe (3), the rear end of the guide pipe (2) is fixedly connected with the shaft pipe (3), the sheath pipe (4) is sleeved with the shaft pipe (3), the shaft pipe (3) is further provided with a support locating piece (32), the front end of the sheath pipe handle (5) is provided with a locking knob (51), and the relative position of the sheath pipe (4) can be fixed through the locking knob, and the guide head is characterized in that: an interventional therapy tube (7) is arranged between the sheath tube (4) and the shaft tube (3), the head end of the interventional therapy tube (7) is positioned in an annular cavity between the shaft tube and the sheath tube and is positioned outside the tectorial membrane bracket (8), and the tail end of the interventional therapy tube (7) is arranged on the sheath tube handle (5) and is connected with an injection interface (52);
the tail end of the guide head (1) is fixedly connected with an annular protection ring (11), and the head end of the shaft tube (3) is provided with a bracket locking piece (31) which is matched with the annular protection ring (11) at the tail end of the guide head to lock a bare metal bracket at the head end of the tectorial membrane bracket (8) in the annular protection ring;
The area between the bracket locking piece (31) and the bracket positioning piece (32) is used for placing the covered bracket (8), and the area and the sheath tube (4) form an annular cavity;
The outer circumferential surface of the bracket positioning piece (32) is textured;
The bracket locating piece (32) is axially provided with a groove (321) or a through hole (322).
2. A stent graft conveyor according to claim 1, wherein: the support locating piece (32) is of a hollow pipe structure, and the shaft pipe (3) and the guide pipe (2) penetrate through the support locating piece (32).
3. A stent graft conveyor according to claim 1, wherein: the annular protection ring (11) is made of heavy metal and alloy thereof, stainless steel or harder self-developing polymer materials.
4. A stent graft conveyor according to claim 1, wherein: the bracket locking piece (31) adopts heavy metal and alloy thereof, stainless steel or harder self-developing polymer material.
5. A stent graft conveyor according to claim 3 or 4, wherein: the front end of the sheath tube (4) is provided with a developing mark (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610453202.0A CN107518967B (en) | 2016-06-21 | 2016-06-21 | Tectorial membrane support conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610453202.0A CN107518967B (en) | 2016-06-21 | 2016-06-21 | Tectorial membrane support conveyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107518967A CN107518967A (en) | 2017-12-29 |
| CN107518967B true CN107518967B (en) | 2024-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610453202.0A Active CN107518967B (en) | 2016-06-21 | 2016-06-21 | Tectorial membrane support conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107518967B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110623779B (en) * | 2018-06-21 | 2023-07-25 | 连新龙 | Protective sleeve for intervention |
| CN109758200A (en) * | 2019-01-29 | 2019-05-17 | 魏民新 | Stented vessel system and application method are discharged after aorta direct-view |
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stents window controlling system |
| CN110393616B (en) * | 2019-07-11 | 2024-05-24 | 武汉领科医疗管理合伙企业(有限合伙) | Tectorial membrane support carries and release system |
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| CN2548564Y (en) * | 2002-07-09 | 2003-05-07 | 维科医疗器械(苏州)有限公司 | Abdominal aneurysm capsule tent transmitter |
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| CN102488576A (en) * | 2011-11-25 | 2012-06-13 | 北京华脉泰科医疗器械有限公司 | Convey and release device for covered stents |
| CN102961198A (en) * | 2012-10-31 | 2013-03-13 | 普霖医疗科技(广州)有限公司 | Covered stent conveyor and conveying method thereof |
| CN203059974U (en) * | 2013-01-24 | 2013-07-17 | 威海维心医疗设备有限公司 | Intracranial self-expandable segmentally-covered braided stent |
| CN203710194U (en) * | 2013-11-07 | 2014-07-16 | 微创心脉医疗科技（上海）有限公司 | Delivery system for abdominal aorta stent |
| CN205913430U (en) * | 2016-06-21 | 2017-02-01 | 谷涌泉 | Tectorial membrane support conveyer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030204246A1 (en) * | 2002-04-25 | 2003-10-30 | Jack Chu | Aneurysm treatment system and method |
| US10231857B2 (en) * | 2014-11-18 | 2019-03-19 | A.V. Medical Technologies LTD | Treating endoleakages in aortic aneurysm repairs |
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2016
- 2016-06-21 CN CN201610453202.0A patent/CN107518967B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548564Y (en) * | 2002-07-09 | 2003-05-07 | 维科医疗器械(苏州)有限公司 | Abdominal aneurysm capsule tent transmitter |
| JP2008073538A (en) * | 2007-10-19 | 2008-04-03 | Terumo Corp | Apparatus for treating blood vessel knob forming blood vessel |
| CN101357088A (en) * | 2008-08-21 | 2009-02-04 | 上海交通大学 | Banding self-ejection type intervention apparatus conveying system |
| CN102488576A (en) * | 2011-11-25 | 2012-06-13 | 北京华脉泰科医疗器械有限公司 | Convey and release device for covered stents |
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| CN203059974U (en) * | 2013-01-24 | 2013-07-17 | 威海维心医疗设备有限公司 | Intracranial self-expandable segmentally-covered braided stent |
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| CN205913430U (en) * | 2016-06-21 | 2017-02-01 | 谷涌泉 | Tectorial membrane support conveyer |
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| Publication number | Publication date |
|---|---|
| CN107518967A (en) | 2017-12-29 |
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Effective date of registration: 20240523 Address after: 956, 9th Floor, Building 2, No. 18 Yangfangdian Road, Haidian District, Beijing, 100038 Patentee after: Beijing Huayan Vascular Disease Diagnosis and Treatment Industry Technology Innovation Strategic Alliance Country or region after: China Address before: 8A, Unit 6, Building 6, Guanshan Garden, Century City, Haidian District, Beijing, 100097 Patentee before: Gu Yongquan Country or region before: China |