CN110946674A - Ascending aorta thrombus filtering device - Google Patents
Ascending aorta thrombus filtering device Download PDFInfo
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- CN110946674A CN110946674A CN201911402810.9A CN201911402810A CN110946674A CN 110946674 A CN110946674 A CN 110946674A CN 201911402810 A CN201911402810 A CN 201911402810A CN 110946674 A CN110946674 A CN 110946674A
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- rib
- ribs
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- 238000001914 filtration Methods 0.000 title claims abstract description 61
- 210000000709 aorta Anatomy 0.000 title claims abstract description 28
- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 27
- 238000005452 bending Methods 0.000 claims description 11
- 210000001367 artery Anatomy 0.000 description 24
- 230000017531 blood circulation Effects 0.000 description 6
- 208000005189 Embolism Diseases 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 3
- 210000003414 extremity Anatomy 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 206010008088 Cerebral artery embolism Diseases 0.000 description 2
- 206010028851 Necrosis Diseases 0.000 description 2
- 206010008118 cerebral infarction Diseases 0.000 description 2
- 208000026106 cerebrovascular disease Diseases 0.000 description 2
- 201000010849 intracranial embolism Diseases 0.000 description 2
- 230000000302 ischemic effect Effects 0.000 description 2
- 230000017074 necrotic cell death Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000002266 amputation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000005978 brain dysfunction Effects 0.000 description 1
- 210000001627 cerebral artery Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Classifications
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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
- A61F2/01—Filters implantable into blood vessels
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (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)
- Surgical Instruments (AREA)
Abstract
The invention discloses an ascending aorta thrombus filtering device which comprises a connecting seat, wherein the upper end of the connecting seat is detachably connected with a connecting hose, a plurality of supporting umbrella ribs are uniformly arranged at the lower end of the connecting seat, the lower ends of the supporting umbrella ribs are connected with supporting columns, and the tail ends of the supporting columns are provided with positioning barbs; a filtering umbrella is arranged between the supporting umbrella ribs, and a plurality of filtering holes are arranged on the filtering umbrella. The invention can solve the problem that the thrombus filtering device in the prior art cannot be suitable for ascending aorta, and has simple structure, strong reliability and good safety.
Description
Technical Field
The invention relates to the technical field of mechanical cutting, in particular to an ascending aorta thrombus filtering device.
Background
Cerebral infarction is caused by the blood blockage of abnormal objects, such as solid or gas, liquid, entering cerebral arteries along the blood circulation or supplying the neck arteries of the brain, causing brain dysfunction of the corresponding blood supply area, also called cerebral embolism. The cerebral embolism is mainly caused by heart mural thrombus shedding caused by various lesions, the shedding of the embolus can cause cerebral infarction along with blood flow embolism to the intracranial, acute embolism of limbs arteries caused by embolism to the limbs, ischemic necrosis and amputation of the limbs are seriously caused, and the embolus reaches internal arteries such as intestinal tracts, kidneys and the like, so that the ischemic necrosis of the internal arteries is caused, and the death of patients is caused.
In the prior art, in order to intercept the fallen thrombus, a thrombus filtering device is usually installed in veins and arteries, but the existing device for the arteries usually depends on a hose to drive the device to move and position, so that the overall filtering device is longer, and the length of the ascending aorta is shorter, so that the filtering device cannot be used in the ascending aorta; devices for veins have the problem of not being able to be effectively fixed in arteries; the device for shortening the length of the thrombus filtering device in the prior art also has the problem of inconvenient position fixation caused by insufficient contact with the side wall of the artery, and the position of the device is repeatedly adjusted in practical use so as to ensure the effectiveness of position fixation and filtering.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the ascending aorta thrombus filtering device which can solve the problem that the thrombus filtering device in the prior art cannot be applied to the ascending aorta.
In order to solve the technical problems, the invention adopts the following technical scheme:
the ascending aorta thrombus filtering device comprises a connecting seat, wherein the upper end of the connecting seat is detachably connected with a connecting hose, a plurality of supporting ribs are uniformly arranged at the lower end of the connecting seat, the lower ends of the supporting ribs are connected with supporting columns, and positioning barbs are arranged at the tail ends of the supporting columns; a filtering umbrella is arranged between the supporting umbrella ribs, and a plurality of filtering holes are arranged on the filtering umbrella.
Among the above-mentioned technical scheme, preferred, support the rib and include upper portion rib and lower part rib, the one end and the connecting seat fixed connection of upper portion rib, the other end and two lower part ribs are connected, and the lower part rib sets up for upper portion rib slope, with two lower part ribs that same upper portion rib intersects respectively with the tip fixed connection of two support columns.
Among the above-mentioned technical scheme, preferred, every support column meets with two lower part ribs respectively, and the upper end of these two lower part ribs meets with the lower extreme of two adjacent upper portion ribs respectively.
Among the above-mentioned technical scheme, preferred, the lower part rib is provided with the brace rod with the support column junction.
In the above technical solution, preferably, the filtering umbrella is located between adjacent upper ribs and between adjacent lower ribs.
Among the above-mentioned technical scheme, preferred, connecting seat lower extreme middle part sets up the main umbrella rib, and the middle part of main umbrella rib is connected through accepting the middle part of curved bar and support column.
In the above technical solution, preferably, the number of the receiving bent rods is smaller than that of the supporting columns; the length of the main umbrella rib is less than the distance from the connecting seat to the lower end of the supporting column.
Among the above-mentioned technical scheme, preferably, the support column is last to be fixed to be provided with a plurality of spacing lantern rings.
Among the above-mentioned technical scheme, preferably, the location overhead kick includes the first kink that links to each other with the support column tip, and the upper end and the second kink of first kink are connected, and the inclination between first kink and support column is less than 60 and is greater than 45, and the inclination between second kink and support column is less than first kink and is greater than 30.
In the above technical solution, preferably, the number of the positioning barbs is 1/3 smaller than the number of the support columns and larger than the number of the support columns.
The ascending aorta thrombus filtering device provided by the invention has the main beneficial effects that:
the invention has the advantages that the supporting umbrella ribs and the filtering umbrella are arranged to play a role in filtering fallen thrombus; the support columns are arranged at the tail ends of the support umbrella ribs so as to fix the relative positions of the filtering device and the side wall of the artery and ensure the filtering umbrella to work effectively; because the lower end of the supporting rib is only provided with the supporting column without arranging an extended connecting hose, the structure of the filtering device is shorter than that of the existing filtering device, and the filtering device can effectively adapt to the environment with shorter length in ascending aorta; the positioning barbs are arranged at the tail ends of the supporting columns and clamped into the side wall of the artery, so that the position of the filtering device in the ascending aorta is effectively fixed; the connecting base is arranged so as to be connected with the connecting hose, so that the filtering device is driven to move, and the filtering device is conveniently moved to the position corresponding to the ascending aorta.
Through setting up the combination that supports the rib to upper portion rib and lower part rib, because cross connection between upper portion rib, lower part rib and the support post to guarantee the horizontal structural strength of filter equipment, do not increase extra horizontal fixed knot simultaneously and construct, avoid filter equipment's weight too big, move in the artery and cause the load to the blood vessel when fixed.
The support ribs are arranged to ensure the relative position between the lower umbrella ribs and the support columns, so that the support columns are effectively fixed on the side walls of the arteries; the main umbrella ribs and the bearing bent rods are arranged, so that the relative position of the supporting columns is fixed; through setting up spacing lantern ring to improve the area of contact between support column and the artery lateral wall, thereby increase friction, so that fixed support column.
The positioning barb is arranged to be combined with the first bending part and the second bending part, and the second bending part is bent inwards, so that the connecting hose can conveniently drive the filtering device to move up and down in the artery, and the positioning barb is not required to be clamped in the side wall of the artery due to local up-and-down movement; when the filtering device moves below the set position, the filtering device is pulled upwards with force, the side wall of the artery cannot be expanded in time due to the fact that the positioning barbs move fast, and the second bending parts of the positioning barbs are clamped with the side wall of the artery, so that effective fixation of the filtering device is guaranteed; when the filtering device needs to be taken out, the filtering device is withdrawn downwards at a constant speed, and the positioning barbs are separated from the side wall of the artery.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of a filtering device provided in a conveying device.
Wherein, 1, connecting seat, 11, connection screw, 12, coupling hose, 2, support rib, 21, upper portion rib, 22, lower part rib, 3, support column, 31, brace rod, 32, spacing lantern ring, 4, main umbrella rib, 41, accept the knee, 5, filter the umbrella, 51, filter the hole, 6, location overhead kick, 61, first kink, 62, second kink, 7, conveyor.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of the ascending aorta thrombus filter device.
The ascending aorta thrombus filtering device comprises a connecting seat 1, wherein the upper end of the connecting seat 1 is provided with a connecting screw hole 11 which is detachably connected with a connecting hose 12. The filter device is moved by connecting a hose 12. A plurality of supporting ribs 2 are uniformly arranged at the lower end of the connecting seat 1, the lower ends of the supporting ribs 2 are connected with supporting columns 3, and positioning barbs 6 are arranged at the tail ends of the supporting columns 3; a filtering umbrella 5 is arranged between the supporting umbrella ribs 3 to block thrombus, and the filtering umbrella 5 is made of transparent material; the filtering umbrella 5 is provided with a plurality of filtering holes 51 for passing blood flow.
Specifically, the supporting umbrella rib 2 comprises an upper umbrella rib 21 and a lower umbrella rib 22, one end of the upper umbrella rib 21 is fixedly connected with the connecting seat 1, and the upper umbrella rib 21 is uniformly arranged below the connecting seat 1; the other end is connected with two lower ribs 22, the lower ribs 22 are arranged obliquely relative to the upper ribs 21, and the two lower ribs 22 intersecting with the same upper rib 21 are respectively fixedly connected with the end parts of the two support columns 3.
Each support post 3 is connected to two lower ribs 22, and the upper ends of the two lower ribs 22 are connected to the lower ends of two adjacent upper ribs 21. Through the connection of upper portion rib 21, lower part rib 22 and support column 3 to guarantee the horizontal structural strength of filter equipment, do not increase extra horizontal fixed knot simultaneously and construct, avoid filter equipment's weight too big, cause the load to the blood vessel when removing in the artery and fixing.
The filtering umbrella 5 is located between adjacent upper ribs 21 and between adjacent lower ribs 22 to save material. A support rib 31 is provided at the junction of the lower rib 22 and the support post 3 to limit the relative angle between the support post and the lower rib 22.
The positioning inverted hook 6 comprises a first bent part 61 connected with the end of the support column 3, the upper end of the first bent part 61 is connected with a second bent part 62, the connecting part is arc-shaped, the inclination angle between the first bent part 61 and the support column 3 is smaller than 60 degrees and larger than 45 degrees, the inclination angle between the second bent part 62 and the support column 3 is smaller than the first bent part 61 and larger than 30 degrees, and therefore the side wall of the artery is prevented from being hooked when the filter device moves up and down. Wherein, the quantity of location barb 6 is less than the quantity of support column 3 and is greater than 1/3 of support column 3 quantity to avoid too much location barb 6 to destroy artery lateral wall overall structure.
Preferably, the middle part of the lower end of the connecting seat 1 is provided with a main umbrella rib 4, and the middle part of the main umbrella rib 4 is connected with the middle part of the supporting column 3 through a bearing bent rod 41. The receiving bent rod 41 has the same curvature as the supporting rib 2 so as to gather the filtering apparatus as a whole. Wherein, the number of the receiving bent rods 41 is less than that of the support columns 3, so as to avoid obstructing the blood flow movement; the length of main umbrella rib 4 is less than the distance from the connecting seat to the lower end of supporting column 3, so that the length of the whole structure is reduced.
Preferably, a plurality of position-limiting collars 32 are fixedly arranged on the supporting column 3 so as to increase the contact area of the supporting column 3 and the side wall of the artery.
In actual use, the conveying device 7 is sleeved outside the filtering device, as shown in fig. 2, the supporting umbrella ribs 2, the receiving bent rods 41 and the supporting columns 3 of the filtering device arranged in the conveying device 7 can be folded to be attached to the main umbrella ribs 4, and the shape of the folded umbrella is like that of a straight-handle umbrella, so that the umbrella is convenient to transfer. The upper part of the conveying device 7 is sleeved on the connecting hose 12, and the filtering device and the conveying device are driven to move in the blood vessel through the connecting hose 12.
When the filtering device moves to the position below the target position in the ascending aorta, the conveying device 7 is pulled upwards to be removed, then the connecting hose 12 is pulled upwards to expand the supporting umbrella ribs 2, and the second bending part 62 of the positioning barb 6 is clamped into the side wall of the artery obliquely above to bear the blood flow impact in the ascending aorta, so that the filtering device is prevented from being impacted and displaced by the blood flow in the cavity; when the filtering device needs to be taken out, the connecting hose 12 is pushed downwards, so that the filtering device moves downwards, the positioning barbs 6 are driven to be separated from the side wall of the artery, and then the conveying device 7 is sleeved downwards, so that the filtering device is convenient to move and take out.
The above description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Claims (10)
1. The ascending aorta thrombus filtering device is characterized by comprising a connecting seat, wherein the upper end of the connecting seat is detachably connected with a connecting hose, a plurality of supporting ribs are uniformly arranged at the lower end of the connecting seat, the lower ends of the supporting ribs are connected with supporting columns, and positioning barbs are arranged at the tail ends of the supporting columns; a filtering umbrella is arranged between the supporting umbrella ribs, and a plurality of filtering holes are arranged on the filtering umbrella.
2. The ascending aorta thrombus filtering device according to claim 1, wherein the supporting rib comprises an upper rib and a lower rib, one end of the upper rib is fixedly connected with the connecting seat, the other end of the upper rib is connected with the two lower ribs, the lower ribs are obliquely arranged relative to the upper rib, and the two lower ribs intersecting with the same upper rib are respectively fixedly connected with the end parts of the two supporting columns.
3. The ascending aorta thrombus filter device according to claim 2, wherein each support post is connected to two lower ribs, and the upper ends of the two lower ribs are connected to the lower ends of two adjacent upper ribs.
4. The ascending aorta thrombus filter device according to claim 3, wherein a support rib is provided at the junction of the lower rib and the support pillar.
5. The ascending aorta thrombus filtration device of claim 3, wherein the filter umbrella is positioned between adjacent upper ribs and between adjacent lower ribs.
6. The ascending aorta thrombus filtering device according to claim 1, wherein a main umbrella rib is arranged in the middle of the lower end of the connecting seat, and the middle part of the main umbrella rib is connected with the middle part of the supporting column through a bearing bent rod.
7. The ascending aorta thrombus filter device according to claim 6, wherein the number of receiving curved rods is smaller than that of support columns; the length of the main umbrella rib is less than the distance from the connecting seat to the lower end of the supporting column.
8. The ascending aorta thrombus filter device according to claim 1, wherein a plurality of position-limiting collars are fixedly arranged on the supporting column.
9. The ascending aorta thrombus filter device according to claim 8, wherein the positioning barbs include a first bending portion connected to an end of the support post, an upper end of the first bending portion is connected to a second bending portion, an inclination angle between the first bending portion and the support post is less than 60 ° and greater than 45 °, and an inclination angle between the second bending portion and the support post is less than the first bending portion and greater than 30 °.
10. The ascending aorta thrombus filtration device of claim 1, wherein the number of positioning barbs is less than the number of support posts and greater than 1/3 the number of support posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402810.9A CN110946674A (en) | 2019-12-31 | 2019-12-31 | Ascending aorta thrombus filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402810.9A CN110946674A (en) | 2019-12-31 | 2019-12-31 | Ascending aorta thrombus filtering device |
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| Publication Number | Publication Date |
|---|---|
| CN110946674A true CN110946674A (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911402810.9A Pending CN110946674A (en) | 2019-12-31 | 2019-12-31 | Ascending aorta thrombus filtering device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973332A (en) * | 2012-11-23 | 2013-03-20 | 杭州启明医疗器械有限公司 | Thrombus filter and using method thereof |
| CN206007409U (en) * | 2016-04-22 | 2017-03-15 | 上海形状记忆合金材料有限公司 | A kind of variable vein filter tool |
| CN108403254A (en) * | 2018-03-19 | 2018-08-17 | 内蒙古工业大学 | A kind of novel recoverable version vena cava filter |
| US20190105146A1 (en) * | 2016-04-28 | 2019-04-11 | Shenzhen Kyd Biomedical Tehcnology Co. Ltd. | Inferior Vena Cava Filter |
-
2019
- 2019-12-31 CN CN201911402810.9A patent/CN110946674A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973332A (en) * | 2012-11-23 | 2013-03-20 | 杭州启明医疗器械有限公司 | Thrombus filter and using method thereof |
| CN206007409U (en) * | 2016-04-22 | 2017-03-15 | 上海形状记忆合金材料有限公司 | A kind of variable vein filter tool |
| US20190105146A1 (en) * | 2016-04-28 | 2019-04-11 | Shenzhen Kyd Biomedical Tehcnology Co. Ltd. | Inferior Vena Cava Filter |
| CN108403254A (en) * | 2018-03-19 | 2018-08-17 | 内蒙古工业大学 | A kind of novel recoverable version vena cava filter |
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