CN1868549A - Recoverable thrombus filter - Google Patents
Recoverable thrombus filter Download PDFInfo
- Publication number
- CN1868549A CN1868549A CN 200610091163 CN200610091163A CN1868549A CN 1868549 A CN1868549 A CN 1868549A CN 200610091163 CN200610091163 CN 200610091163 CN 200610091163 A CN200610091163 A CN 200610091163A CN 1868549 A CN1868549 A CN 1868549A
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- Prior art keywords
- metal wires
- stiff end
- end tool
- helical
- blood vessel
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 74
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 43
- 239000004744 fabric Substances 0.000 claims description 5
- 230000006378 damage Effects 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000003466 welding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 208000037260 Atherosclerotic Plaque Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000024248 Vascular System injury Diseases 0.000 description 1
- 208000012339 Vascular injury Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 125000004122 cyclic group Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 210000002889 endothelial cell Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 208000037803 restenosis Diseases 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
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- Surgical Instruments (AREA)
- Filtering Materials (AREA)
Abstract
A thrombus filter able to be recovered is composed of a filtering unit consisting of a spiral metal wire matched with the inner surface of blood vessel and several metal wires arranged radically in blood vessel, and a fixing unit for fixing one ends of all the metal wires together and with a hook. It does not damage blood vessel.
Description
Technical field:
The present invention relates to a kind of interventional medical device, particularly is a kind of callable thrombus filter.
Background technology:
Existing thrombus filter has polytype, as six foot tapers, the Radix Curcumae odor type, screen cloth shape filter etc., above-mentioned various thrombus filter reaches the localized purpose of thrombus filter for making it after implantation, all adopt the structure of beam grasp or silk grasp, make filter utilize the sharp end of grasp to thrust blood vessel and hang in the blood vessel, to avoid filter to produce displacement or drift because of mobile the washing away of blood, because the end of grasp is a sharp end, very easily blood vessel wall is punctured to scratch and cause vascular injury and damage adjacent tissue's structure and a series of complication of initiation postoperative generation, and because grasp also can cause the generation of vascular restenosis for a long time to the stimulation of blood vessel; In implanting the filter process, because of the grasp direction is changeless, its chimoto scratches carrier easily causes it to be stuck, and when discharging, be difficult to accurate location, wayward filter lay form, filter after the implantation easily tilts, the slippage displacement, just can't adjust filter in case grasp thrusts blood vessel; When need take out filter, because of grasp has thrust blood vessel, can only folk prescription to reclaiming filter, when grasp broke away from blood vessel in returning removing property process, grasp very easily scratched blood vessel, even caused angiorrhexis to cause massive hemorrhage, and is dangerous very big.
Summary of the invention:
Goal of the invention of the present invention is to disclose a kind of recyclablely, and injured blood vessel does not prevent effectively that filter from tilting, displacement and conveniently accurately adjust localized spiral type thrombus filter.
Realize that technical solution of the present invention is as follows: comprise with the fixed stiff end tool 1 in many one metal wires end, stiff end tool 1 is provided with a coupler body 2, key is that at least one one metal wire 3 is helical form, form the ring-type of at least one sub-circular that contacts with the blood vessel wall, many one metal wires 4 of drawing with stiff end tool 1 form radial funnel-form.
Described two one metal wires 3 are helical form, form at least one/or the ring-type of two sub-circulars that contact with the blood vessel wall, above-mentioned two one metal wires 3 can be equidirectional spiral, or can be each other spiral in the other direction.
Described three one metal wires 3 are helical form, form the ring-type of at least two sub-circulars that contact with the blood vessel wall, and above-mentioned three one metal wires 3 can be equidirectional spiral, or can be each other spiral in the other direction.
Described many one metal wires 3 are helical form, form the ring-type of a plurality of sub-circulars that contact with the blood vessel wall, or form columned fabric.
The end of described radial tinsel 4 is a closed hoop 5, and at least one helical metal wire 3 passes above-mentioned closed hoop 5.
The other end of described helical metal wire 3 also has a stiff end tool 1.
Described three helical metal wires 3 that stretch out at stiff end tool 1 distribute for equal angles, other tinsel 6 forms rhombus, a rhombohedral end away from stiff end tool 1 has ring-type revolution 8, the other end that each helical metal wire 3 passes 8, three helical metal wires 3 of ring-type revolution of a diamond-type metal silk also has a stiff end tool 1.
The other end of described many one metal wires 3 also is provided with a stiff end tool 1, and many one metal wires of one end adjacent two by fixing by stiff end tool 1 again after the clamp clamps.
Described stiff end tool 1 has female thread, and has a plurality of protruding 7 on the helical metal wire 3.
Radial tinsel of the present invention and helical metal wire constitute the filter part of filter jointly, and spiral helicine tinsel is for supporting localization part, can guarantee not injured blood vessel, its helical metal filament remains has enough uniform tensions to blood vessel, make it can be close to blood vessel, neither injured blood vessel prevents that again filter from tilting, being shifted or drift, improve the stability of filter, and can unidirectional or two-way recovery filter, more convenient operation, more accurate positioning, safety and reliability, greatly reduced operation risk, the present invention can place for a long time or temporarily.
Description of drawings:
Fig. 1 is the structural representation of the first embodiment of the present invention.
Fig. 2 is the structural representation of the second embodiment of the present invention.
Fig. 3 is the structural representation of the third embodiment of the present invention.
Fig. 4 is the structural representation of the fourth embodiment of the present invention.
Fig. 5 is the structural representation of the fifth embodiment of the present invention.
Fig. 6 is the agent structure sketch map of the sixth embodiment of the present invention.
Fig. 7 is the structural representation of facing of the sixth embodiment of the present invention.
Fig. 8 is the agent structure sketch map of the seventh embodiment of the present invention.
Fig. 9 is the structural representation of facing of the seventh embodiment of the present invention.
Figure 10 is the agent structure sketch map of the eighth embodiment of the present invention.
Figure 11 is the structural representation of facing of the eighth embodiment of the present invention.
Figure 12 is the structural representation of facing of the ninth embodiment of the present invention.
The specific embodiment:
See also Fig. 1～Figure 12, specific embodiments of the invention are as follows: see Fig. 1～Fig. 4, stiff end tool 1 is a cylinder, the one end has a coupler body 2, coupler body 2 is the recovery hook of filter, it can be bail or cover hook, and the spiral tinsel of the other end of stiff end tool 1 and many straight tinsels 4 and at least one 3 is affixed; Tinsel 4 is the stretched silk, one end of many one metal wires 4 is crossing to flock together and the 1 one end solid weldings of stiff end tool, every one metal wire 4 is dispersed by the circumferencial direction uniform distribution by the identical angle of the outside bending of solid welding point respectively and is opened, the radial infundibulate of its whole formation, the diameter of this funnel opening is slightly less than or equals the diameter of tinsel 3 spiral turns, many one metal wires 4 have been formed the filter house of filter, when blood flow by the opening of funnel when its end that closes up flows through, funnel is is just intercepted and captured thrombosis in the blood or the atherosclerotic plaque that comes off, the density that tinsel 4 is laid directly has influence on the effect of intercepting and capturing, can be 8～16, the diameter of adjacent two tinsels 4 can be isometrical or not isometrical, or the length of adjacent two tinsels 4 is for isometric, and tinsel 4 also can be and is the full curve shape, as waveform etc., intercept and capture effect to strengthen; Tinsel 3 is a spiral ring body, one end and 1 solid welding of stiff end tool, this end extends a straightway rear screw from solid welding point, the direction of its helix can be left-handed or dextrorotation, at least spiral one encloses, the number of turns by its spiral, form the ring-type of at least one sub-circular that contacts with the blood vessel wall, this cyclic diameter (being the diameter of spiral coil) is greater than the internal diameter of blood vessel, stiff end tool 1 is in axis of screw direction, the spiral ring body has very high elastic force is embedded in blood vessel ring week its tight support, form an annulus contact surface, blood vessel is owing to shoring of spiral filament produces an annular recess, this depression tightly coats the filament that is in contact with it, make tinsel 3 and blood vessel contact surface produce frictional resistance, this frictional resistance is enough to overcome the blood flow scouring force, avoid filter to produce displacement or drift, and be maintained fixed the end tool 1 be in its axis of screw direction (being the center of blood vessel) all the time, so that the recovery of filter, tinsel 3 constitutes the supporting construction of filter part, because supporting construction is a spiral ring to the contact shape of blood vessel, improved reliability of positioning, more effective filter that prevents tilts, and can under proof strength, use thinner tinsel to reduce the cross section metal coverage rate, for increasing the frictional resistance of itself and blood vessel, the cross section of tinsel 3 can be polygon, as rectangle or rhombus; Tinsel 3 and tinsel 4 are made for medical stainless steel, cobalt-base alloys or NiTi shape memory alloy material, and the cross section of tinsel 4 also can be polygon; In implantation process, because tinsel 3 and tinsel 4 equal Wugou thorns, just can be unobstructed, by carrier the present invention is discharged very reposefully and send, and can adjust the controlled filter device in dispose procedure or after discharging at any time lay form and position, avoided grasp structural type filter to launch the back and thrust the defective that blood vessel can't be regulated and control because of grasp, when reclaiming filter, because tinsel 3 makes stiff end tool 1 remain at its spiral axial direction, the seal wire that reclaims in the conduit can be connected with the coupler body 2 of stiff end tool 1 accurately and easily, impose pulling force, the radial funnel opening that tinsel 3 stretchings is similar to linearity and 4 formation of related many one metal wires shrinks in the lump by in the income recovery conduit thereupon, avoided especially when reclaiming filter because of grasp and blood vessel break away from the danger that causes angiorrhexis to cause by force, present embodiment can accomplish that folk prescription is to the recovery filter.
See Fig. 3～4, a described spiral helicine tinsel 3 can have the structure of two approximate annulus, the structure of two approximate annulus can be at a distance of a suitable distance, this can increase the pressure to blood vessel, increase frictional force, reduce the possibility of filter displacement, present embodiment also can accomplish that folk prescription is to reclaiming filter.
See Fig. 5, there are two one metal wires 3 to be helical form, form at least one/or the ring-type of two sub-circulars that contact with the blood vessel wall, this two one metal wire 3 is symmetrically distributed for equal angles or not equal angles distribution, its hand of helix can be equidirectional spiral, promptly be all left-handed or be all dextrorotation, or can be each other spiral in the other direction, both an one metal wire 3 was left-handed, another one metal wire 3 is dextrorotation, its tail end intersect to connect, and two tinsels 3 have constituted the spriochaeta polyspira combination, can strengthen helical metal wire 3 support strength and with the frictional resistance of blood vessel contact surface.
See Fig. 6～7, described three one metal wires 3 are helical form, form the ring-type of at least two sub-circulars that contact with the blood vessel wall, and this three one metal wire 3 is that equal angles is symmetrically distributed, and above-mentioned three one metal wires 3 can be equidirectional spiral, or can be each other spiral in the other direction; Three one metal wires 3 are formed a taper shape from the straightway that stiff end tool 1 solder joint extends, form the shroud of filter, this shroud is the filter house of filter, also extend a straightway and crossing to axis of screw direction separately behind the some circles of three one metal wires, 3 spirals, the same taper shape of forming, formed the hub disk of filter, the high circular cone height with hub disk of the circular cone of shroud can be contour or not contour, shroud overlaps with the projection of hub disk, for strengthening filter effect, can will form left-handed again or dextrorotation one angle of straightway of three one metal wires 3 of shroud, make the straightway that constitutes shroud become curved section, promptly shroud does not overlap with the projection of hub disk; The straightway that forms the tinsel 3 of shroud also can be the full curve shape, and as waveform, not shown radial tinsel 4 is so that the more clear overall structure that provides among Fig. 6.
See Fig. 8～Figure 11, described many one metal wires 3 are helical form, form the ring-type of a plurality of sub-circulars that contact with the blood vessel wall, or form columned fabric; With above-mentioned three one metal wires 3 be helical form in like manner, many tinsel 3 spirals combinations (more than three), can form the ring-type of a plurality of sub-circulars that contact with the blood vessel wall, or form a columned fabric, between adjacent two spiral coils along helical axis to the gap of distance (pitch) fine and close and interweave, make the support strength of tinsel 3 stronger, its shroud also can left-handed again or dextrorotation one angle, and shroud is not overlapped with the projection of hub disk.
See Fig. 2,4,5, the end of described radial tinsel 4 is a closed hoop 5, and at least one one metal wire 3 passes above-mentioned closed hoop 5; Closed hoop 5 is a ring of the end coiled of tinsel 4, this ring can slide on the tinsel 3 that is passed, its effect is to guarantee that filter can two-wayly reclaim, in the structure shown in Fig. 1,3, since the tinsel 4 of radial filtration can only folk prescription to recovery, when closed hoop 5, when two-way recovery filter, displacement along with the stiff end tool 1 at one of filter two ends, tinsel 3 becomes the stretching state that shrinks by helical form, radial tinsel 4 can movement therewith compile, the convenient then recovery conduit that successfully enters; Closed hoop 5 also can be an annulus cover, and the end of tinsel 4 and this annulus cover are welded as a whole, and tinsel 3 passes from this annulus cover.
For but the filter twocouese is reclaimed, the other end of above-mentioned helical metal wire 3 also is provided with a stiff end tool 1, make the two ends of tinsel 3 that a stiff end tool 1 all respectively be arranged, during recovery, the stiff end tool 1 that the recovery conduit can pass through arbitrary end of tinsel 3 reclaims filter.
Described three helical metal wires 3 that stretch out at stiff end tool 1 distribute for equal angles, other tinsel 6 forms the rhombus (see figure 8), a rhombohedral end away from stiff end tool 1 has ring-type revolution 8, ring-type revolution 8 can be a ring set or encompasses a ring by tinsel 6 and constitutes, each helical metal wire 3 passes the ring-type revolution 8 of a diamond-type metal silk 6, tinsel 3 can slide in this ring-type revolution 8, diamond-type metal silk 6 forms with tinsel 3 and flexibly connects, because each one metal wire 3 adds a diamond-type metal silk 6, make two 3 in adjacent tinsels increase twice metal filament, the intercepting and capturing density wiry that makes the filter shroud from sparse to dense, its slit reduces, can improve the thrombosis catch rate, the other end of three helical metal wires 3 also has a stiff end tool 1; For improving the thrombosis catch rate, also can be provided with a tinsel that assumes diamond in shape 6 on the above-mentioned tinsel 4, an end of tinsel 6 and 1 welding of stiff end tool, tinsel 4 passes from the ring-type revolution 8 of tinsel 6.
See Figure 12, the other end of described many one metal wires 3 also is provided with a stiff end tool 1, and many one metal wires of one end adjacent two by fixing by stiff end tool 1 again after the clamp clamps; The spiral combination of aforesaid many one metal wires 3, after finishing the spiral number of turns, can two adjacent one metal wires 3 are fixing with stiff end tool 1 again after affixed with another root by a clamp clamps or wherein one, the tinsel quantity of hub disk is reduced, tinsel as four one metal wires, 3 hub disks then becomes two by four, the hub disk of eight one metal wires 3 then becomes four, shroud does not overlap with the projection of hub disk, and this structure can guarantee to reduce the barrier effect and the resistance that reduce blood flow of the hub disk of filter to thrombosis.
Described stiff end tool 1 has female thread, and has a plurality of protruding 7 on the helical metal wire 3; The top end face of stiff end tool 1 is provided with one and has the hole (not shown) of female thread, this hole is used for being spirally connected with the seal wire of carrier or recover, so that the release of filter is settled or is reclaimed, for strengthening the frictional resistance of tinsel 3 and blood vessel, along being evenly equipped with a plurality of protruding 7 on the spiral ring body of tinsel 3, projection 7 can be sphere or other shape, it can be metal material or macromolecular material is made, these a plurality of effects of protruding 7 one be increase filter with the frictional resistance of blood vessel, reduce the possibility of displacement, simultaneously should projection 7 as with some metal material making, but can increase in the operation installation course at the apparent resolution of X-ray or B ultrasonic surveillance equipment, the accuracy that operation is laid is improved in more convenient installation location; For reaching better location, development effect, the projection 7 that can on tinsel 3 metal material be made is mixed laying at interval with the projection 7 that macromolecular material is made.
Described tinsel 3 surfaces can apply one deck medication coat, by tinsel 3 medicine are directly delivered to the blood vessel place effectively, suppress endothelial cell growth, reduce blood clotting.
Claims (10)
1. callable thrombus filter, comprise the fixed stiff end tool in many one metal wires end (1), stiff end tool (1) is provided with a coupler body (2), it is characterized in that at least one one metal wire (3) is helical form, form the ring-type of at least one sub-circular that contacts with the blood vessel wall, many one metal wires (4) of drawing with stiff end tool (1) form radial funnel-form.
2. by the described callable thrombus filter of claim 1, it is characterized in that described two one metal wires (3) are helical form, form at least one/or the ring-type of two sub-circulars that contact with the blood vessel wall, above-mentioned two one metal wires (3) can be equidirectional spiral, or can be each other spiral in the other direction.
3. by the described callable thrombus filter of claim 1, it is characterized in that described three one metal wires (3) are helical form, form the ring-type of at least two sub-circulars that contact with the blood vessel wall, above-mentioned three one metal wires (3) can be equidirectional spiral, or can be each other spiral in the other direction.
4. by the described callable thrombus filter of claim 1, it is characterized in that described many one metal wires (3) for helical form, form the ring-type of a plurality of sub-circulars that contact with the blood vessel wall, or form columned fabric.
5. by claim 1 or 2 or 3 described callable thrombus filters, the end that it is characterized in that described radial tinsel (4) is a closed hoop (5), and at least one helical metal wire (3) passes above-mentioned closed hoop (5).
6. by the described callable thrombus filter of claim 5, it is characterized in that the other end of described helical metal wire (3) also has a stiff end tool (1).
7. by the described callable thrombus filter of claim 3, it is characterized in that described three helical metal wires (3) that stretch out at stiff end tool (1) distribute for equal angles, other tinsel (6) forms rhombus, a rhombohedral end away from stiff end tool (1) has ring-type revolution (8), each helical metal wire (3) passes the ring-type revolution (8) of a diamond-type metal silk, and the other end of three helical metal wires (3) also has a stiff end tool (1).
8. by the described callable thrombus filter of claim 4, the other end that it is characterized in that described many one metal wires (3) also is provided with a stiff end tool (1), and many one metal wires of one end adjacent two by fixing by stiff end tool (1) again after the clamp clamps.
9. by claim 1 or 2 or 3 or 4 or 6 or 7 or 8 described callable thrombus filters, it is characterized in that described stiff end tool (1) has female thread, and on the helical metal wire (3) a plurality of projectioies (7) are arranged.
10. by the described callable thrombus filter of claim 5, it is characterized in that described stiff end tool (1) has female thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610091163 CN1868549A (en) | 2006-07-04 | 2006-07-04 | Recoverable thrombus filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610091163 CN1868549A (en) | 2006-07-04 | 2006-07-04 | Recoverable thrombus filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1868549A true CN1868549A (en) | 2006-11-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610091163 Pending CN1868549A (en) | 2006-07-04 | 2006-07-04 | Recoverable thrombus filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1868549A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316809A (en) * | 2009-02-20 | 2012-01-11 | 维尔返有限公司 | Instrument for capturing thrombus in blood vessel |
| CN102743241A (en) * | 2012-07-27 | 2012-10-24 | 首都医科大学宣武医院 | Novel deformable non-axial flow vena cava filter |
| WO2014094543A1 (en) | 2012-12-21 | 2014-06-26 | 先健科技(深圳)有限公司 | Medical instrument coating and preparation method therefor and medical instrument comprising coating |
| CN106725997A (en) * | 2016-12-22 | 2017-05-31 | 北京华脉泰科医疗器械有限公司 | Vena cava filter and its production method |
| CN107157614A (en) * | 2017-06-14 | 2017-09-15 | 有研医疗器械（北京）有限公司 | The interim vena cava filter system of biconial |
| CN108904098A (en) * | 2018-05-25 | 2018-11-30 | 武汉麦迪佳德医疗科技有限公司 | A kind of double filter takes pin device, takes bolt assembly and its application method |
| WO2024036931A1 (en) * | 2022-08-17 | 2024-02-22 | 上海科罡医疗技术有限公司 | Device for blocking thrombus in blood vessel |
-
2006
- 2006-07-04 CN CN 200610091163 patent/CN1868549A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316809A (en) * | 2009-02-20 | 2012-01-11 | 维尔返有限公司 | Instrument for capturing thrombus in blood vessel |
| CN102743241A (en) * | 2012-07-27 | 2012-10-24 | 首都医科大学宣武医院 | Novel deformable non-axial flow vena cava filter |
| CN102743241B (en) * | 2012-07-27 | 2014-07-23 | 首都医科大学宣武医院 | Novel deformable non-axial flow vena cava filter |
| WO2014094543A1 (en) | 2012-12-21 | 2014-06-26 | 先健科技(深圳)有限公司 | Medical instrument coating and preparation method therefor and medical instrument comprising coating |
| CN106725997A (en) * | 2016-12-22 | 2017-05-31 | 北京华脉泰科医疗器械有限公司 | Vena cava filter and its production method |
| CN107157614A (en) * | 2017-06-14 | 2017-09-15 | 有研医疗器械（北京）有限公司 | The interim vena cava filter system of biconial |
| CN107157614B (en) * | 2017-06-14 | 2019-06-21 | 有研医疗器械（北京）有限公司 | The interim vena cava filter system of biconial |
| CN108904098A (en) * | 2018-05-25 | 2018-11-30 | 武汉麦迪佳德医疗科技有限公司 | A kind of double filter takes pin device, takes bolt assembly and its application method |
| WO2024036931A1 (en) * | 2022-08-17 | 2024-02-22 | 上海科罡医疗技术有限公司 | Device for blocking thrombus in blood vessel |
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