CN105361974A - Thrombus filter - Google Patents
Thrombus filter Download PDFInfo
- Publication number
- CN105361974A CN105361974A CN201510929050.2A CN201510929050A CN105361974A CN 105361974 A CN105361974 A CN 105361974A CN 201510929050 A CN201510929050 A CN 201510929050A CN 105361974 A CN105361974 A CN 105361974A
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- China
- Prior art keywords
- thrombus filter
- center
- support bar
- thrombus
- filter
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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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00035—Other metals or alloys
- A61F2310/00071—Nickel or Ni-based alloys
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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 a thrombus filter, which comprises a filter tray, an elastic supporting frame and a central rod, wherein the filter tray is of a contractible structure; the filter tray is connected to the tail end of the central rod; the elastic supporting frame is connected to the upper end of the central rod; and a recovery end is arranged at the top end of the central rod. The thrombus filter disclosed by the invention is stably fixed in inferior vena cava, and is simple in recovery operation, strong in self-centered capacity, not easy for inclination and good in thrombus filtering effect.
Description
Technical field
The present invention relates to medical instruments field, especially relate to a kind of thrombus filter.
Background technology
Pulmonary embolism (is called for short pulmonary infarction PulmonaryEmbolism, PE) be because the thrombus breaks loose of around deep venous thrombosis or right cardiac cavity enters pulmonary circulation, blocking pulmonary artery or its branch, and then initiation is a series of based on the clinical pathology physiological change of pulmonary circulatory function obstacle, serious meeting causes sudden death.Research shows, the embolus causing PE to occur is mainly derived from the thrombosis that limb deep vein or pelvic veins come off, and accounts for the 60%-90% in embolus source.Can locate below renal veins open horizontal thus, namely postcava places a thrombus filter, free embolus in interception blood, effectively can prevent the generation of pulmonary infarction PE, this technology is just constantly applied to clinical treatment and achieves good effect at present.
Difference according to thrombus filter retention time in vivo can be divided into: permanent thrombus filter and recyclable thrombus filter.Permanent thrombus filter can only forever be placed, and can not take out, and this type of thrombus filter may occur corresponding complication after placing for a long time, and as being shifted, caval vein is bored a hole, and local thrombus is formed, inferior vena cava obstruction etc.Patient needs long-term taking anticoagulant simultaneously, and this brings significant limitation to the practical application of permanent thrombus filter.Recyclable thrombus filter starts to apply in nearly 15 years, and such thrombus filter (being generally 14 days) can take out in the certain hour after it is implanted in body, thus avoids the shortcoming of Permanent implantation thrombus filter.Current recyclable thrombus filter is all be connected with carrier by screw thread usually, and apparatus itself is roughly two large classes from next point of structure, conical and bird-caging.
Current thrombus filter has numerous limitation; As shown in Figure 1 and Figure 2, the limitation of conical thrombus filter is exactly when postcava implanted by this apparatus, poor from center capacity due to conical apparatus, and this apparatus easily tilts after implanting postcava, and after apparatus tilts, recovery head is close to blood vessel wall; In removal process, reclaim apparatus and cannot capture recovery head smoothly, the operation time that apparatus reclaims can be increased, even cause the reclaimer operation failure of apparatus; And the apparatus of the cone shape of single layer structure determines the filtration thrombosis ability of the apparatus of the type; This apparatus fixed effect is poor, and apparatus is easily displacement after implanting; As shown in Figure 3, Figure 4, the limitation of bird-caging thrombus filter is exactly that this apparatus is in order to strengthen at inferior caval fixed effect, add the area of the center-pole of device contacts blood vessel wall, but this easily causes endothelium to cover climbing of center-pole, in the process reclaiming apparatus, easily tear endothelium and injured blood vessel wall, even cause apparatus not recyclable.
In a word, existing thrombus filter is fixing unstable at postcava, and recyclable operation technique trouble, poor from center capacity, easily tilt, thrombosis filter effect is bad.
In view of above-mentioned defect, creator of the present invention obtains this creation finally through long research and practice.
Summary of the invention
The object of the invention is to, a kind of thrombus filter is provided, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is, a kind of thrombus filter is provided, comprise filtering table, flexible supporting frames and center-pole, described filtering table is retractable structure, described filtering table is connected with the end of described center-pole, and described flexible supporting frames is connected to the upper end of described center-pole, and the top of described center-pole is provided with reclaims end.
Preferably, described filtering table comprises multiple being interconnected and bending fixed bar, and each described fixed bar radially arranges, and sends and flare up umbrella from the center of described filtering table.
Preferably, the end of described fixed bar is provided with mooring anchor thorn.
Preferably, the end of described fixed bar is also provided with stop part.
Preferably, the end of described stop part is provided with fixing bulb.
Preferably, described flexible supporting frames comprises multiple bending support bar, and each described support bar radially arranges, and sends from the center of described support bar and flare up umbrella.
Preferably, the end of described support bar is provided with and supports anchor thorn, and described support anchor stabs outer opening, and retracts when compressed in described support bar.
Preferably, the end of described support bar is also provided with support bulb.
Preferably, described recovery end is the structure of grasp or the structure of round end.
Preferably, the connector for being connected with carrier described recovery end is equipped with.
Beneficial effect of the present invention is compared with the prior art: thrombus filter of the present invention is at postcava fixing-stable, and recyclable operation technique is simple, strong from center capacity, not easily tilts, thrombosis good filtration effect; The double-decker of this thrombus filter and grid filtering table, thrombosis can be filtered best, enhance the function of apparatus from center, can ensure that apparatus is more stably fixed on postcava, cause not recyclable after apparatus can be prevented again coated by endothelium, take into account the balance between fixing and recyclable two key effect; Reclaim the setting of end and provided with threaded connector, make the release of this thrombus filter and reclaimer operation simple and convenient, can reduce operation time, the setting of fixing bulb, support bulb and stop part, can effectively prevent thrombus filter to the damage of Blood of Patients tube wall.
Accompanying drawing explanation
Fig. 1 is the position view of conical thrombus filter in postcava anatomical structure;
Fig. 2 is that conical thrombus filter causes reclaiming failed schematic diagram after the medium dip of postcava anatomical structure;
Fig. 3 is the position view of bird-caging thrombus filter in postcava anatomical structure;
Fig. 4 is that the partial enlarged drawing covered is climbed at the center-pole B place of bird-caging thrombus filter by blood vessel wall endothelium;
Fig. 5 is the axonometric chart of thrombus filter of the present invention;
Fig. 6 is the top view of thrombus filter of the present invention;
The A portion enlarged diagram that Fig. 7 is the thrombus filter shown in Fig. 1;
Fig. 8 is the schematic diagram of thrombus filter of the present invention;
Fig. 9 is the schematic diagram of the another kind of embodiment of thrombus filter of the present invention;
Figure 10 is the position view of thrombus filter of the present invention in postcava anatomical structure;
Figure 11 is the protection schematic diagram in the C portion of Figure 10;
Figure 12 is the structural representation of the recovery end of thrombus filter of the present invention;
Figure 13 is the schematic diagram of the another kind of embodiment of the recovery end of thrombus filter of the present invention;
Figure 14 is that the flexible supporting frames of the another kind of embodiment of thrombus filter of the present invention has just entered sheath pipe or gone out the view of sheath pipe;
Figure 15 is that most of support bar of the flexible supporting frames of the another kind of embodiment of thrombus filter of the present invention has entered sheath pipe or gone out the view of sheath pipe;
Figure 16 is that the support bar end of the flexible supporting frames of the another kind of embodiment of thrombus filter of the present invention prepares into sheath pipe or the view going out sheath pipe;
Figure 17 is the axonometric chart of the another kind of embodiment of thrombus filter of the present invention;
The D portion enlarged diagram of the another kind of embodiment that Figure 18 is the thrombus filter shown in Figure 17.
In figure: 1-filtering table; 2-flexible supporting frames; 3-center-pole; 4-reclaims end; 5-fixed bar; 6-mooring anchor stings; 7-stop part; 8-fixes bulb; 9-support bar; 10-supports anchor thorn; 11-supports bulb; 12-connector.
Detailed description of the invention
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
As shown in Figure 5, Figure 6, a kind of thrombus filter, described thrombus filter comprises filtering table 1, center-pole 3 and flexible supporting frames 2.Thrombus filter can be made up of the material with shape memory function used normal in the industry, does not limit in the present invention to concrete material, as long as be applicable to human body and have the material of shape memory function; In the present embodiment, thrombus filter adopts Nitinol to make, be specially hollow NiTi pipe, by hollow NiTi pipe raw material after laser engraving, mould is utilized to strut, heat-treat sizing again and namely obtain thrombus filter, described filtering table 1 is retractable structure, and described filtering table 1 is connected with the end of described center-pole 3, described flexible supporting frames 2 is connected to the upper end of described center-pole 3, and the top of described center-pole 3 is provided with reclaims end 4; Thrombus filter is at postcava fixing-stable, and recyclable operation technique is simple, strong from center capacity, not easily tilts, thrombosis good filtration effect.
On the basis of above-mentioned embodiment, described filtering table 1 comprises multiple being interconnected and bending fixed bar 5, each described fixed bar 5 radially arranges, send from the center of described filtering table 1 and flare up umbrella, it is worthy of note, eight fixed bars 5 can be adopted to form filtering table 1 in actual use, but require according to mechanical property and filter effect the number can selecting 6-12 root; Each root fixed bar 5 is divided into two branches of diverging near its end, the Liang Ge branch of adjacent two fixed bars 5 links into an integrated entity near bending section again, finally be pooled on the other end center-pole 3 of filtering table 1, form the filtering table 1 of mesh shape, this filtering table 1 has best filtration thrombosis effect.
As shown in Fig. 5, Fig. 6, Fig. 7, on the basis of above-mentioned embodiment, the end of described fixed bar 5 is provided with mooring anchor thorn 6, mooring anchor thorn 6 near the end of fixed bar 5 is formed by laser engraving, utilize corresponding mould to strut and after heat treatment form the shape that mooring anchor stings 6, in order to be fixed on the Ink vessel transfusing of patient.
On the basis of above-mentioned embodiment, one or more stop part 7 can be set at the end of each fixed bar 5, certain point be preferably arranged near mooring anchor thorn 6 is placed, preferably can form stop part 7 by the end of laser engraving fixed bar 5, one of them engraving part can bend to form stop part 7, and make the second engraving part stretch out to be formed mooring anchor thorn 6, this stop part 7 bends towards flexible supporting frames 2, there are protection and the restriction of stop part 7, mooring anchor can be made to sting 6 and to thrust the certain degree of depth of postcava blood vessel wall, ensure that thrombus filter stablizes fixing effect at postcava, can prevent again mooring anchor from stinging the 6 penetration rate of blood tube wall risks increased because the degree of depth of thrusting blood vessel wall is excessive.
As Fig. 8, shown in Fig. 9, on the basis of above-mentioned embodiment, one end of flexible supporting frames 2 comprises multiple bending support bar 9, although four support bars 9 can be adopted, but require according to mechanical property and specification the number can selecting 3-6 root, support bar 9 utilizes mould to strut heat treatment shaping by center-pole 3 and forms after laser engraving, support bar 9 radially structure, from center along inclined shaft direction flare up umbrella, the end of support bar 9 is basically parallel to axis and the center-pole 3 of flexible supporting frames 2, flexible supporting frames 2 contribute to strengthen thrombus filter from center capacity, as Figure 10, shown in Figure 11, thus prevent thrombus filter from implanting postcava rear-inclined.
As Fig. 5, Fig. 6, Figure 12, Figure 13, Figure 14, Figure 15, shown in Figure 16, on the basis of above-mentioned embodiment, the part of not cutting on center-pole 3 top forms the one end of reclaiming end 4, the other end reclaiming end 4 becomes hook-like groove to form the recovery end 4 of grasp structure by laser engraving, utilize reclaim recovery end 4 that apparatus arrests this hook-like groove be conducive to thrombus filter implant a period of time after recovery again, preferably, recovery end 4 laser engraving of hook-like groove can also be become, reclaim end 4 interior welds and load onto the threaded connector 12 be connected with carrier, this connector 12 is conducive to the controllable release operation of thrombus filter.
As Fig. 5, Fig. 8, Fig. 9, Figure 14, Figure 15, shown in Figure 16, on the basis of above-mentioned embodiment, the end of described support bar 9 is provided with and supports anchor thorn 10, described support anchor thorn 10 outwards opens, retract in described support bar 9 when compressed, when laser engraving, support anchor thorn 10 near the end of the support bar 9 of flexible supporting frames 2 also will be gone out by laser engraving, preferably, support the root of anchor thorn 10 on support bar 9, support anchor thorn 10 tiltedly towards the end of support bar 9, utilize corresponding mould to strut and form through heat treatment shaping the shape that this support anchor stings 10, support anchor thorn 10 contributes to thrombus filter stablizing in postcava to be fixed, when the major part of the support bar 9 of the flexible supporting frames 2 of thrombus filter has entered sheath pipe or has gone out sheath pipe, the tip of this support anchor thorn 10 is outwards opened automatically, when the end of the support bar 9 of the flexible supporting frames 2 of thrombus filter has entered sheath pipe or has gone out sheath pipe, this support anchor thorn 10 can be automatically withdrawn on support bar 9, when the end of the support bar 9 of the flexible supporting frames 2 of thrombus filter is in sheath pipe, this support anchor thorn 10 and support bar 9 place are at grade, the set-up mode of this support anchor thorn 10 is conducive to release to thrombus filter and reclaimer operation.
As Fig. 5, Fig. 8, Fig. 9, Figure 17, Figure 18 is on the basis of above-mentioned embodiment, the end of the stop part 7 of described filtering table 1 also makes bulb by processing technique such as hot melts, preferably, during cutting NiTi pipe, the end of the stop part 7 of filtering table 1 can be cut into circle, contribute to end to add at hot melt and form fixing bulb 8 man-hour, the end of described support bar 9 is also made by processing technique such as hot melts and is supported bulb 11, preferably, during cutting NiTi pipe, the end of support bar 9 can be cut into circle, contribute to end and add formation support in man-hour bulb 11 at hot melt, fixing bulb 8 and support bulb 11 are conducive to reducing thrombus filter in release and removal process to inferior caval damage.
As shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, in simple terms, described thrombus filter comprises interconnective filtering table 1, center-pole 3 and flexible supporting frames 2, the filtering table 1 of mesh shape has best filter effect, flexible supporting frames 2 is strengthening thrombus filter from center capacity, while preventing thrombus filter from implanting postcava rear-inclined, also contributing to filtering a part of thrombosis, filtering the ability of thrombosis because this enhancing thrombus filter; Thrombus filter takes the technique of NiTi pipe one cutting, contribute to strengthen thrombus filter in postcava from center capacity, the mooring anchor thorn 6 of filtering table 1 and the support anchor thorn 10 of flexible supporting frames 2 can under the prerequisites not increasing thrombus filter and vessel wall contact area, ensure that thrombus filter is inferior caval stable fixing, can prevent again simultaneously apparatus by endothelium climb cover cause not recyclable; The mooring anchor thorn 6 that filtering table 1 could be protected and limit to the stop part 7 of filtering table 1 thrusts the suitable degree of depth of blood vessel wall, thus prevents from the mooring anchor of the filtering table 1 of thrombus filter from stinging 6 penetrating inferior caval blood vessel wall.The fixing bulb 8 of filtering table 1, and flexible supporting frames 2 supports bulb 11, thrombus filter can be reduced in implantation and reclaimer operation process to inferior caval damage, reclaim end 4 interior welds threaded connector 12 and be arranged so that thrombus filter is able on the basis of the recyclable operation of apparatus with hook-like groove, not affecting again and the controllable release of thrombus filter is operated.
The foregoing is only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that the claims in the present invention limit to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. a thrombus filter, it is characterized in that: comprise filtering table, flexible supporting frames and center-pole, described filtering table is retractable structure, described filtering table is connected with the end of described center-pole, described flexible supporting frames is connected to the upper end of described center-pole, and the top of described center-pole is provided with reclaims end.
2. thrombus filter as described in claim 1, is characterized in that: described filtering table comprises multiple being interconnected and bending fixed bar, and each described fixed bar radially arranges, and sends and flare up umbrella from the center of described filtering table.
3. thrombus filter as described in claim 2, is characterized in that: the end of described fixed bar is provided with mooring anchor thorn.
4. thrombus filter as described in claim 3, is characterized in that: the end of described fixed bar is also provided with stop part.
5. thrombus filter as described in claim 4, is characterized in that: the end of described stop part is provided with fixing bulb.
6. thrombus filter as described in claim 1, it is characterized in that: described flexible supporting frames comprises multiple bending support bar, each described support bar radially arranges, and sends from the center of described support bar and flare up umbrella.
7. thrombus filter as described in claim 6, is characterized in that: the end of described support bar is provided with and supports anchor thorn, and described support anchor stabs outer opening, and retracts when compressed in described support bar.
8. thrombus filter as described in claim 7, is characterized in that: the end of described support bar is also provided with support bulb.
9. thrombus filter as described in claim 8, is characterized in that: described recovery end is the structure of grasp or the structure of round end.
10. thrombus filter as described in claim 9, is characterized in that: described recovery end is equipped with the connector for being connected with carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929050.2A CN105361974B (en) | 2015-12-14 | 2015-12-14 | A kind of thrombus filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929050.2A CN105361974B (en) | 2015-12-14 | 2015-12-14 | A kind of thrombus filter |
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| CN105361974A true CN105361974A (en) | 2016-03-02 |
| CN105361974B CN105361974B (en) | 2018-09-21 |
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Cited By (10)
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| CN105943197A (en) * | 2016-04-29 | 2016-09-21 | 湖南埃普特医疗器械有限公司 | Vena cava filter |
| CN106618794A (en) * | 2017-01-06 | 2017-05-10 | 上海宏普医疗器械有限公司 | Octopus-type retrievable vena cava filter |
| WO2017186025A1 (en) * | 2016-04-28 | 2017-11-02 | 深圳市科奕顿生物医疗科技有限公司 | Inferior vena cava filter |
| WO2018120414A1 (en) * | 2016-12-26 | 2018-07-05 | 杭州唯强医疗科技有限公司 | Filter |
| CN108272530A (en) * | 2017-03-06 | 2018-07-13 | 上海宏普医疗器械有限公司 | A kind of recyclable Caval vein thrombus filter of double umbellate forms |
| CN108283530A (en) * | 2017-03-07 | 2018-07-17 | 上海宏普医疗器械有限公司 | A kind of octopus type retrievable vena cava filter |
| CN109498206A (en) * | 2018-12-06 | 2019-03-22 | 深圳市科奕顿生物医疗科技有限公司 | Implant recycles instrument and its application and packaging |
| CN110169843A (en) * | 2019-06-20 | 2019-08-27 | 哈尔滨工业大学（威海） | A kind of lotus flap-type bilayer point support recoverable version vena cava filter and production method |
| CN110811918A (en) * | 2019-11-20 | 2020-02-21 | 湖南埃普特医疗器械有限公司 | Recoverable filter and filter pusher |
| CN112206072A (en) * | 2019-11-14 | 2021-01-12 | 上海宏普医疗器械有限公司 | But crooked thrombus filter equipment of self-adaptation blood vessel |
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| WO2017186025A1 (en) * | 2016-04-28 | 2017-11-02 | 深圳市科奕顿生物医疗科技有限公司 | Inferior vena cava filter |
| CN113229992B (en) * | 2016-04-28 | 2023-07-21 | 深圳市科奕顿生物医疗科技有限公司 | Inferior vena cava filter |
| CN109069253A (en) * | 2016-04-28 | 2018-12-21 | 深圳市科奕顿生物医疗科技有限公司 | A kind of inferior vena cava filter |
| CN113331987A (en) * | 2016-04-28 | 2021-09-03 | 深圳市科奕顿生物医疗科技有限公司 | Inferior vena cava filter |
| CN113229992A (en) * | 2016-04-28 | 2021-08-10 | 深圳市科奕顿生物医疗科技有限公司 | Inferior vena cava filter |
| RU2703136C1 (en) * | 2016-04-28 | 2019-10-15 | Шэньчжэнь Кид Биомедикал Текнолоджи Ко.Лтд | Filter of inferior vena cava |
| CN105943197A (en) * | 2016-04-29 | 2016-09-21 | 湖南埃普特医疗器械有限公司 | Vena cava filter |
| WO2018120414A1 (en) * | 2016-12-26 | 2018-07-05 | 杭州唯强医疗科技有限公司 | Filter |
| CN106618794A (en) * | 2017-01-06 | 2017-05-10 | 上海宏普医疗器械有限公司 | Octopus-type retrievable vena cava filter |
| CN108272530A (en) * | 2017-03-06 | 2018-07-13 | 上海宏普医疗器械有限公司 | A kind of recyclable Caval vein thrombus filter of double umbellate forms |
| CN108283530A (en) * | 2017-03-07 | 2018-07-17 | 上海宏普医疗器械有限公司 | A kind of octopus type retrievable vena cava filter |
| CN109498206A (en) * | 2018-12-06 | 2019-03-22 | 深圳市科奕顿生物医疗科技有限公司 | Implant recycles instrument and its application and packaging |
| CN110169843A (en) * | 2019-06-20 | 2019-08-27 | 哈尔滨工业大学（威海） | A kind of lotus flap-type bilayer point support recoverable version vena cava filter and production method |
| CN112206072A (en) * | 2019-11-14 | 2021-01-12 | 上海宏普医疗器械有限公司 | But crooked thrombus filter equipment of self-adaptation blood vessel |
| CN110811918A (en) * | 2019-11-20 | 2020-02-21 | 湖南埃普特医疗器械有限公司 | Recoverable filter and filter pusher |
| CN110811918B (en) * | 2019-11-20 | 2021-11-09 | 湖南埃普特医疗器械有限公司 | Recoverable filter and filter pusher |
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