CN110226995B - Accurate positioning device for aorta tectorial membrane stent - Google Patents
Accurate positioning device for aorta tectorial membrane stent Download PDFInfo
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- CN110226995B CN110226995B CN201910488836.3A CN201910488836A CN110226995B CN 110226995 B CN110226995 B CN 110226995B CN 201910488836 A CN201910488836 A CN 201910488836A CN 110226995 B CN110226995 B CN 110226995B
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- 210000002489 tectorial membrane Anatomy 0.000 title claims abstract description 14
- 210000000709 aorta Anatomy 0.000 title claims abstract description 6
- 241000669003 Aspidiotus destructor Species 0.000 claims description 3
- 230000002792 vascular Effects 0.000 abstract description 22
- 238000007906 compression Methods 0.000 abstract description 12
- 230000006835 compression Effects 0.000 abstract description 6
- 210000004204 blood vessel Anatomy 0.000 description 13
- 238000001125 extrusion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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- 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
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
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- 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)
Abstract
The invention discloses an aorta tectorial membrane stent accurate positioning device, which comprises a plurality of elastic first U-shaped blocks and a plurality of elastic second U-shaped blocks, the first U-shaped blocks are aligned, a first connecting piece is arranged between the bottoms of the first U-shaped blocks, the second U-shaped blocks are aligned, the first connecting pieces are also arranged between the bottoms of the second U-shaped blocks, the top of the first U-shaped block and the top of the second U-shaped block are staggered oppositely, a second connecting piece is arranged between the side surfaces of the first U-shaped block, also be equipped with between the side of second U-shaped piece the second connecting piece, the inboard of first U-shaped piece and second U-shaped piece is equipped with the arch of alignment, and this device can carry out even compression with vascular tectorial membrane support, avoids vascular tectorial membrane support to appear torsional phenomenon in the compression process, effectively improves the accuracy and the convenience of adjusting.
Description
Technical Field
The invention belongs to the field of vascular stents, and relates to an accurate positioning device for an aortic stent graft.
Background
When the blood vessel covered stent is used, the blood vessel covered stent needs to be compressed and placed on a guide wire and then placed in a delivery sheath so as to be conveniently delivered to a specific position in the blood vessel, but in the compression process of the blood vessel covered stent, the blood vessel covered stent needs to be released when placed in the specific position due to the torsion phenomenon of the blood vessel covered stent in the compression process, so that the hole in the released blood vessel covered stent cannot be accurately aligned with the branch blood vessel, and at the moment, the angle adjustment of the blood vessel covered stent is too complex, the operation is not easy, the operation time is too long, and the branch blood vessel cannot flow into sufficient blood, causing danger to the patient.
Disclosure of Invention
The invention aims to solve the problem that the aorta covered stent accurate positioning device can uniformly compress the blood vessel covered stent, avoid the phenomenon that the blood vessel covered stent is twisted in the compression process and effectively improve the accuracy and convenience of adjustment.
The precise positioning device for the aorta tectorial membrane support comprises a plurality of first U-shaped blocks and a plurality of second U-shaped blocks, wherein the first U-shaped blocks are aligned, first connecting pieces are arranged between the bottoms of the first U-shaped blocks, the second U-shaped blocks are aligned, the first connecting pieces are also arranged between the bottoms of the second U-shaped blocks, the tops of the first U-shaped blocks and the tops of the second U-shaped blocks are oppositely staggered, second connecting pieces are arranged between the side surfaces of the first U-shaped blocks, second connecting pieces are also arranged between the side surfaces of the second U-shaped blocks, and aligned bulges are arranged on the inner sides of the first U-shaped blocks and the second U-shaped blocks.
Preferably, the top of the first connecting piece on the first U-shaped block is provided with a pressing block, and the bottom of the first connecting piece on the second U-shaped block is provided with a concave block for placing fingers.
Preferably, the device further comprises a calibration mechanism, wherein a first through hole is formed in the surface of the pressing block, and the first through hole is aligned with the calibration mechanism.
Preferably, a spring is arranged between the first U-shaped block and the second U-shaped block.
Preferably, the calibration mechanism comprises a clamping mechanism and a transparent scale block, the clamping mechanism is clamped on the conveying sheath, a second through hole is formed in the scale block, the conveying sheath penetrates through the second through hole, the clamping mechanism is rotatably connected with the scale block, and the scale block can freely hang relative to the conveying sheath.
Preferably, the bottom of the scale block is locally increased in weight, and the scale in the vertical direction of the scale block is zero degree.
Preferably, the clamping mechanism comprises a clamping piece with elasticity.
Preferably, the first connecting member has a circular cross section.
Preferably, the first through hole has a rectangular cross section.
Preferably, the clamping piece is provided with a notch.
The invention has the beneficial effects that:
because the first U-shaped block and the second U-shaped block are in a staggered state, the symmetrical positions of the vascular covered stent are clamped through the protrusions on the first U-shaped block and the second U-shaped block, then the first U-shaped block and the second U-shaped block are extruded, so that the vascular covered stent is in a 0-shaped state after being extruded, and then the first U-shaped block and the second U-shaped block are continuously extruded, so that the vascular covered stent is compressed to a smaller volume on the guide wire, the phenomenon that the vascular covered stent is twisted in the compression process is greatly reduced, then the guide wire and the compressed vascular covered stent are sheathed by the delivery sheath, the vascular covered stent is compressed by the device for multiple times, and the guide wire and the compressed vascular covered stent are sheathed by the delivery sheath in a segmented manner, so that the large position deviation of the opening on the surface of the compressed vascular covered stent does not occur when the compressed vascular covered stent recovers to the original shape, the accuracy of the compression work is ensured, and the convenience of the operation is also improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of the precise positioning device for aortic stent graft of the present invention;
FIG. 2 is a schematic diagram showing the use state of the precise positioning device for aortic stent graft of the present invention;
FIG. 3 is a schematic view showing the use state of the precise positioning device for aortic stent graft of the present invention.
In the figure, 1 is a first U-shaped block, 2 is a second U-shaped block, 3 is a first connecting piece, 4 is a second connecting piece, 5 is a protrusion, 6 is a pressing block, 7 is a concave block, 8 is a first through hole, 9 is a spring, 10 is a scale block, 11 is a clamping piece, 12 is a second through hole, and 13 is a notch.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the precise positioning device for the aortic stent graft comprises a plurality of elastic first U-shaped blocks 1 and a plurality of elastic second U-shaped blocks 2, wherein the first U-shaped blocks 1 are aligned, a first connecting piece 3 is arranged between the bottoms of the first U-shaped blocks 1, the second U-shaped blocks 2 are aligned, the first connecting piece 3 is also arranged between the bottoms of the second U-shaped blocks 2, the tops of the first U-shaped blocks 1 and the tops of the second U-shaped blocks 2 are oppositely staggered, a second connecting piece 4 is arranged between the side surfaces of the first U-shaped blocks 1, a second connecting piece 4 is also arranged between the side surfaces of the second U-shaped blocks 2, aligned bulges 5 are arranged on the inner sides of the first U-shaped blocks 1 and the second U-shaped blocks 2, and symmetrical positions of the vascular stent graft are clamped by the bulges 5 on the first U-shaped blocks 1 and the second U-shaped blocks 2, then extrude first U-shaped piece 1 and second U-shaped piece 2 for vascular tectorial membrane support is after receiving the extrusion to present the state of "0" font, then continue through further extrusion first U-shaped piece 1 and second U-shaped piece 2 again, thereby make vascular tectorial membrane support compressed to less volume on the seal wire, the phenomenon of twisty has appeared in the vascular tectorial membrane support compression process, then live guide wire and compressed vascular tectorial membrane support through the delivery sheath, through the work that this device compresses vascular tectorial membrane support and delivery sheath segmentation entangle the seal wire and compressed vascular tectorial membrane support many times, guaranteed that the vascular tectorial membrane support after the compression does not appear great positional deviation in its surperficial entrance when its size recovers the original state, guaranteed the accuracy of compression work, and also improved the convenience of operation.
The top of the first connecting piece 3 on the first U-shaped block 1 is equipped with presses the briquetting 6, the bottom of the first connecting piece 3 on the second U-shaped block 2 is equipped with the concave piece 7 that is used for placing the finger, through press the cooperation of briquetting 6 and concave piece 7, can make things convenient for medical personnel to carry out the extrusion work of this device, improved the convenience of operation.
The top of the first connecting piece 3 on the first U-shaped block 1 is provided with a pressing block 6, and the bottom of the first connecting piece 3 on the second U-shaped block 2 is provided with a concave block 7 for placing fingers.
Still include the aligning gear, the surface of pressing according to briquetting 6 is equipped with first through-hole 8, first through-hole 8 is aligned with the aligning gear, through the aligning gear's calibration work can be observed constantly to first through-hole 8, ensures the reliability of this device work.
First U-shaped piece 1 with be equipped with spring 9 between the second U-shaped piece 2, through spring 9 can ensure that this device resets after compression work is accomplished to be convenient for going on of next compression work, improved the convenience that this device used.
The calibration mechanism comprises a clamping mechanism and a transparent scale block 10, the clamping mechanism is clamped on a conveying sheath, a second through hole 12 is arranged on the scale block 10, the conveying sheath penetrates through the second through hole 12, the circle center of the conveying sheath and the circle center of the scale block 10 can be overlapped as much as possible, so that the accuracy of subsequent calibration work is ensured, the clamping mechanism is rotatably connected with the scale block 10, the scale block 10 can freely hang relative to the conveying sheath, the scale block 10 is fixed on the conveying sheath through the clamping mechanism, the clamping mechanism can be released after the conveying sheath is sent into a blood vessel of a human body for a certain distance, then the conveying sheath is clamped on the conveying sheath which is not conveyed into the human body, the rotating angle of the conveying sheath in the conveying process can be known through the scale block 10, and the angle of the conveying sheath in the conveying process can be conveniently adjusted, the accuracy of the device is ensured, the low staggering degree between the openings on the vascular stent graft and the branch vessels is reduced, and the operation time and the subsequent adjustment work of the position of the vascular stent graft are greatly reduced.
The bottom of scale block 10 is locally increased in weight, the scale on the vertical direction of scale block 10 is zero degree, and the scale direction that can ensure zero degree through increasing weight to the scale position on the 10 vertical directions of scale is coincided with the gravity direction all the time, ensures that this device can accurate calibration transport sheath transport angle.
The clamping mechanism comprises a clamping piece 11 with elasticity, the clamping piece 11 is matched with a scale block 10, the operation of the device can be facilitated, the clamping piece 11 is connected with the scale block 10 in a rotating mode, an arc-shaped sliding groove (not shown) can be formed in the surface of the scale block 10, and a sliding block (not shown) is arranged on the clamping piece 11, so that the sliding block (not shown) slides in the sliding groove (not shown), the clamping piece 14 and the scale block 10 can rotate relatively, and the calibration work can be conducted conveniently.
The cross section of the first connecting piece 3 is circular, and the operation of the device can be facilitated through the structure of the first connecting piece 3, so that the first U-shaped block 1 and the second U-shaped block 2 can slide relatively to each other conveniently.
The cross-section of first through-hole 8 is the rectangle, holder 11 is equipped with breach 13, through first through-hole 8 can conveniently align breach 13 on the holder 11 to ensure the reliability and the accuracy of this device's calibration work.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The aorta tectorial membrane support accurate positioning device is characterized by comprising a plurality of first U-shaped blocks and a plurality of second U-shaped blocks which are elastic, wherein the first U-shaped blocks are aligned, a first connecting piece is arranged between the bottoms of the first U-shaped blocks, the second U-shaped blocks are aligned, the first connecting piece is also arranged between the bottoms of the second U-shaped blocks, the tops of the first U-shaped blocks and the tops of the second U-shaped blocks are oppositely staggered, a second connecting piece is arranged between the side surfaces of the first U-shaped blocks, a second connecting piece is also arranged between the side surfaces of the second U-shaped blocks, aligned bulges are arranged on the inner sides of the first U-shaped blocks and the second U-shaped blocks, a pressing block is arranged at the top of the first connecting piece on the first U-shaped block, and a concave block for placing fingers is arranged at the bottom of the first connecting piece on the second U-shaped block, the calibration mechanism comprises a clamping mechanism and a transparent scale block, the clamping mechanism is clamped on the conveying sheath, a second through hole is formed in the scale block, the conveying sheath penetrates through the second through hole, the clamping mechanism is rotatably connected with the scale block, and the scale block can freely hang relative to the conveying sheath.
2. The precise positioning device for the aortic stent graft of claim 1, wherein a spring is disposed between the first U-shaped block and the second U-shaped block.
3. The precise positioning device for the aortic stent graft of claim 1, wherein the bottom of the scale block is locally weighted, and the scale in the vertical direction of the scale block is zero degree.
4. The precise positioning device for the aortic stent graft of claim 1, wherein the clamping mechanism comprises a clamp with elasticity.
5. The precise positioning device for the aortic stent graft of claim 1, wherein the first connector is circular in cross section.
6. The precise positioning device for the aortic stent graft of claim 1, wherein the first through hole has a rectangular cross section.
7. The precise positioning device for the aortic stent graft of claim 4, wherein the clamp is provided with a notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910488836.3A CN110226995B (en) | 2019-06-06 | 2019-06-06 | Accurate positioning device for aorta tectorial membrane stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910488836.3A CN110226995B (en) | 2019-06-06 | 2019-06-06 | Accurate positioning device for aorta tectorial membrane stent |
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| Publication Number | Publication Date |
|---|---|
| CN110226995A CN110226995A (en) | 2019-09-13 |
| CN110226995B true CN110226995B (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910488836.3A Active CN110226995B (en) | 2019-06-06 | 2019-06-06 | Accurate positioning device for aorta tectorial membrane stent |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0826346A1 (en) * | 1996-08-21 | 1998-03-04 | Cordis Corporation | Hand-held stent crimper |
| WO2001021076A1 (en) * | 1999-09-22 | 2001-03-29 | Scimed Life Systems, Inc. | Stent crimping system |
| EP2742917A1 (en) * | 2012-12-13 | 2014-06-18 | Biotronik AG | Apparatus and method for crimping an implant |
| CN106137487A (en) * | 2010-07-07 | 2016-11-23 | 艾博特心血管系统公司 | Installation on support delivery system for the support |
| CN207423172U (en) * | 2017-10-16 | 2018-05-29 | 青岛海尔空调电子有限公司 | A kind of air-conditioning Horizontal mounting arrangements |
| CN208048843U (en) * | 2017-07-28 | 2018-11-06 | 有研医疗器械（北京）有限公司 | A kind of holder pressure holds pincers |
| CN208725965U (en) * | 2017-09-11 | 2019-04-12 | 杭州海略科技有限公司 | A kind of bracket pressure holds device |
-
2019
- 2019-06-06 CN CN201910488836.3A patent/CN110226995B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0826346A1 (en) * | 1996-08-21 | 1998-03-04 | Cordis Corporation | Hand-held stent crimper |
| WO2001021076A1 (en) * | 1999-09-22 | 2001-03-29 | Scimed Life Systems, Inc. | Stent crimping system |
| CN106137487A (en) * | 2010-07-07 | 2016-11-23 | 艾博特心血管系统公司 | Installation on support delivery system for the support |
| EP2742917A1 (en) * | 2012-12-13 | 2014-06-18 | Biotronik AG | Apparatus and method for crimping an implant |
| CN208048843U (en) * | 2017-07-28 | 2018-11-06 | 有研医疗器械（北京）有限公司 | A kind of holder pressure holds pincers |
| CN208725965U (en) * | 2017-09-11 | 2019-04-12 | 杭州海略科技有限公司 | A kind of bracket pressure holds device |
| CN207423172U (en) * | 2017-10-16 | 2018-05-29 | 青岛海尔空调电子有限公司 | A kind of air-conditioning Horizontal mounting arrangements |
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| CN110226995A (en) | 2019-09-13 |
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Effective date of registration: 20240103 Address after: 611, Huafeng international business building, 4018 Baoan Avenue, Yantian community, Xixiang street, Bao'an District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Yitai Technology Co.,Ltd. Address before: No. 2203, Building B, Jianghai District, Haidian Island, Meilan District, Haikou City, Hainan Province, 570100 Patentee before: Gao Feng |
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