CN2710575Y - Sustained release thrombus filter - Google Patents
Sustained release thrombus filter Download PDFInfo
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- CN2710575Y CN2710575Y CN 200420051074 CN200420051074U CN2710575Y CN 2710575 Y CN2710575 Y CN 2710575Y CN 200420051074 CN200420051074 CN 200420051074 CN 200420051074 U CN200420051074 U CN 200420051074U CN 2710575 Y CN2710575 Y CN 2710575Y
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- thrombus filter
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- thrombus
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Abstract
The utility model relates to a sustained release thrombus filter, which can capture the deciduous thrombus and prevent the happening of the thrombus; the utility model is formed by the integration laser engraving of the metal pipe which has superpower elastic memory function; the end of the thrombus filter is provided with an inner screw connected with the outer screw of the generator. The utility model has the advantages of being recovered, and can be casually placed in the blood vessel of the body as well as durably placed in the blood vessel of the body; the sustained release thrombus filter also overcomes the fraud that the thrombus filter is displaced because of the forward attack during the instant delivery of the thrombus filter.
Description
Technical field
This utility model relates to medical apparatus and instruments, is specifically related to a kind of thrombus filter of controllable release.
Background technology
Pulmonary thromboembolism is a kind of severe complication behind the venous thrombosis, uses heparin can treat pulmonary thromboembolism effectively.But in some cases, must stop the up of embolus, prevention or minimizing pulmonary thromboembolism at the built-in machinery of putting of postcava.Traditional surgical method is to interrupt the postcava blood flow with ligation or clamp, needs general anesthesia, operation case fatality rate height.Percutaneous is inserted that the inferior vena cava filter method is simple, effective, complication is few and is light, is widely adopted in recent years.
The type of existing postcava thrombus filter is more, is exactly wherein a kind of such as Kimray Greenfieldfilter (KGF), and it is the cone-shaped stainless steel device that is made of 6 legs, and the end of each leg has a barb, plays fixation.But the displacement rate of its cephalad or tail side is higher, thereby the probability that has increased hemorrhage, thrombosis and settled failure, less in recent years use.Filter commonly used now has Titanium Greenfield filter (TGF), and it is the conical device of being made by titanium alloy, and leg and hook and KGF are different, and its required catheter sheath bore is less, and external diameter is 12～14F, introduces easily and places.The approach of inserting can be through the right side or the left side femoral vein, or through right internal jugular vein.Filter commonly used also has Vena Tech-LGM filter (VTF), it is the stainless steel device that is made of six leg companion flap hurdles, each sidebar all has an outer hook and an agnail, to guarantee that this filter can be fixed in the postcava wall, keep it at middle position, required catheter sheath external diameter was 10～12F when it was introduced, and can settle through femoral vein or right internal jugular vein approach.Filter commonly used can be caught the thrombosis that comes off preferably, yet exists not recyclable and the bigger drawback of instant impact when discharging.
Summary of the invention
The purpose of this utility model is to provide a kind of thrombus filter of controllable release, can be recovered, and both can forever place, and also can place temporarily.
Another purpose of the present utility model is to provide a kind of thrombus filter of controllable release, can effectively reduce the instant impact when discharging.
The purpose of this utility model is achieved by the following technical solution: the thrombus filter that a kind of controllable release is provided, the metal tube integrated laser engraving that employing has the ultra-strong elasticity memory function forms, and described thrombus filter end is provided with the female thread that is connected with the transmitter external screw thread.
In this utility model, the extension of described end is provided with the cover hook.An only end extension of described end is provided with the cover hook, the embedded screw thread of cover hook.Both ends are provided with the fixing point of front-end and back-end, are divided into leading portion, stage casing and back segment between two fixing points.The fixing point of rear and front end is coaxial, guarantees concentric locating, and the rod member with ultra-strong elasticity memory function constitutes forward and backward, stage casing, under compressive state, is the compactron pencil, is Conical Lattice under release conditions.Described stage casing is that straight-bar constitutes, and at the circumferencial direction five equilibrium, forms concentric cylinder beam; Back segment is a Conical Lattice, and Conical Lattice is formed by one group of branches such as " Y " shape bar rotation, and each " Y " shape pole-footing portion is connected with the rear end fixing point, and the branch end is corresponding with middle straight-bar one end to link to each other; Leading portion is a Conical Lattice, and Conical Lattice also is made of the rotation of branches such as " Y " shape bar.Described rod member with ultra-strong elasticity memory function constitutes forward and backward, stage casing, and integral body is symmetrical structure.Described structure is the taper that falls back.Described " Y " shape bar only is half of straight-bar quantity, and the root of " Y " shape bar links to each other with the front end fixing point, and the branch end is corresponding with the middle straight-bar other end to link to each other.A grasp is all arranged on every straight-bar, and its incline direction is consistent with cover hook direction.
Owing to adopted technique scheme, this utility model compared with prior art has the following advantages:
1, this utility model adopts Ni/Ti memorial alloy pipe laser engraving to form incorporate design, no tie-point;
2, this utility model both can forever be placed, and also can place temporarily, can be recovered;
3, this utility model is threaded owing to adopting between thrombus filter and the dispensing device, needs only the handle of rotating transmitter in the operation process, just can discharge thrombus filter very reposefully.Simultaneously, in the operation process,, can also back shrink, treat to discharge again after adjust the position, so be a kind of delivery system that can control at any time if there is deviation the thrombus filter position;
4, the drainage screen at this utility model two ends adopts the structural design of optimizing, and has both guaranteed filter effect, has reduced blood flow again and has impacted the negative effect that brings, and is therefore good to catching the thrombosis scouring effect, the long-term patency rates height, and occlusion rate is little;
5, this utility model adopts the grasp location, because grasp has certain orientation, the place blood flow impacts down, and thrombosis filters can not produce displacement or drift phenomenon;
6, the transmission that needs of this utility model is stuck up pipe and only is 6F, and the wound wound is little.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment one;
Fig. 2 is the structural representation of this utility model embodiment two;
Fig. 3 is the structural representation of this utility model embodiment three;
Fig. 4 is the structural representation of this utility model embodiment four;
Fig. 5 is the structural representation of this utility model embodiment five.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is described in further detail:
Embodiment one: as shown in Figure 1, the thrombus filter of this utility model controllable release adopts the metal webmaster laser engraving with ultra-strong elasticity memory function to form, and it is the compactron pencil under compressive state, be Conical Lattice in release conditions.The thrombus filter of this utility model controllable release comprises front end 6, rear end 1, leading portion 4, stage casing 3 and back segment 2.Stage casing 3 is made of straight-bar, in the rotation of branches such as circumferencial direction, forms concentric cylinder beam.Back segment 4 is formed by one group of branches such as " Y " shape bar rotation, and it is Conical Lattice in release conditions, and each " Y " shape pole-footing portion is connected with rear end 1, and the branch end is corresponding continuous with straight-bar one end in stage casing 3.Leading portion 2 also is made of the rotation of branches such as " Y " shape bar, also is Conical Lattice in release conditions, and the quantity of " Y " shape bar is half of straight-bar quantity.The root of " Y " shape bar links to each other with front end 6, and the branch end is corresponding continuous with the other end of the straight-bar in stage casing 3.Leading portion 2 " Y " shape bar lacks than the shape bar of back segment 4, makes thrombus filter be unsymmetric structure on the whole.Front end 6 is provided with the front end fixing point that leading portion 4 compiles, and rear end 1 is provided with the rear end fixing point that back segment 2 compiles, and front end fixing point and rear end fixing point are coaxial, to guarantee concentric locating.Front end 6 stretches out and is provided with the cover hook, and the setting of cover hook is for removal of thromboses filter when thrombus filter is implanted from the upstream of human vein, the embedded threaded steel bushing 7 of cover hook, and steel screw bushing 7 is welded on the rear inside of cover hook.All have a grasp 5 on the every straight-bar in stage casing 3, so that thrombus filter is positioned at blood vessel, its incline direction is consistent with cover hook direction.
In the use, be used to send the female thread on the corresponding thrombus filter of inner core of thrombus filter, external screw thread be set, can rely between thrombus filter and the transmitter to be threaded at a end near thrombus filter.When the thrombus filter that needs to insert in the operation, at first thrombus filter is compressed in advance and be placed on transmitter and stick up in the pipe, deliver to the suitable position of postcava, hold the handle of transmitter, front then, lentamente rotation.Because the inner core of filter and transmitter is extruded outer sticking tube by being threaded so thrombus filter just is sent out the inner core of device gradually.In the process of extruding, thrombus filter is expanding gradually also.Straight-bar on the cylinder of stage casing is close on the blood vessel wall, and the conical surface of back segment 2 and leading portion 4 is released in the vein between two parties, and grasp 5 thrusts on the blood vessel wall gradually, stops thrombus filter to move.When thrombus filter breaks away from transmitter fully, just finished the dispose procedure of thrombus filter.
When needs took out the thrombus filter of having inserted, the puncture that at first undergos surgery advanced the length of certain-length to stick up pipe, advanced sleeve pipe, conduit by the long pipe that sticks up.Under the supervision of developing apparatus, adopt lasso to entangle the cover hook of thrombus filter.Fixing lasso, preceding pushing catheter to thrombus filter overlaps hook, before pushes away the long pipe that sticks up again, contacts with thrombus filter until sticking up the pipe top.Fixed length is stuck up pipe then, and recession lasso conduit is all drawn in the long pipe that sticks up until thrombus filter.Stick up pipe and lasso conduit integral body shifts out external long at last.
Embodiment two: as shown in Figure 2, the thrombus filter of this utility model controllable release and embodiment one difference are that the cover hook that has female thread is placed on rear end 1, so that thrombus filter is implanted from the downstream of human vein.
Embodiment three: as shown in Figure 3, the thrombus filter of this utility model controllable release is that with embodiment one difference front end 6 and rear end 1 all have the cover hook, like this can be conveniently from venous upstream and downstream removal of thromboses filter.
Embodiment four: as shown in Figure 4, the thrombus filter of this utility model controllable release is that with embodiment one difference its structure has only comprised rear end 1, back segment 2 and stage casing 3, forms the pyramidal structure that falls back, and does not have grasp 5 on the straight-bar 3.
Embodiment five: as shown in Figure 5, the thrombus filter of this utility model controllable release is the whole symmetrical structure that is with embodiment one difference, and leading portion 4 is consistent with the quantity of back segment 2 " Y " shape bar, front end 6 and rear end 1 all have the cover hook, and wherein two cover hooks all have female thread.
Claims (10)
1, a kind of thrombus filter of controllable release adopts the metal tube integrated laser engraving with ultra-strong elasticity memory function to form, and it is characterized in that described thrombus filter end is provided with the female thread that is connected with the transmitter external screw thread.
2, thrombus filter according to claim 1 is characterized in that the extension of described end is provided with the cover hook.
3, thrombus filter according to claim 2 is characterized in that an only end extension of described end is provided with the cover hook, the embedded screw thread of cover hook.
4,, it is characterized in that both ends are provided with the fixing point of front-end and back-end, are divided into leading portion, stage casing and back segment between two fixing points according to claim 1 or 2 or 3 described thrombus filters.
5, thrombus filter according to claim 4 is characterized in that the fixing point of rear and front end is coaxial, guarantees concentric locating, rod member with ultra-strong elasticity memory function constitutes forward and backward, stage casing, under compressive state, be the compactron pencil, under release conditions, be Conical Lattice.
6, thrombus filter according to claim 5 is characterized in that described stage casing is that straight-bar constitutes, and at the circumferencial direction five equilibrium, forms concentric cylinder beam; Back segment is a Conical Lattice, and Conical Lattice is formed by one group of branches such as " Y " shape bar rotation, and each " Y " shape pole-footing portion is connected with the rear end fixing point, and the branch end is corresponding with middle straight-bar one end to link to each other; Leading portion is a Conical Lattice, and Conical Lattice also is made of the rotation of branches such as " Y " shape bar.
7, thrombus filter according to claim 6 is characterized in that described rod member with ultra-strong elasticity memory function constitutes forward and backward, stage casing, and integral body is symmetrical structure.
8, thrombus filter according to claim 7 is characterized in that described structure is the taper that falls back.
9, thrombus filter according to claim 6 is characterized in that described " Y " shape bar only is half of straight-bar quantity, and the root of " Y " shape bar links to each other with the front end fixing point, and the branch end is corresponding with the middle straight-bar other end to link to each other.
10, thrombus filter according to claim 9 is characterized in that a grasp is all arranged on every straight-bar, its incline direction is consistent with cover hook direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420051074 CN2710575Y (en) | 2004-04-23 | 2004-04-23 | Sustained release thrombus filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420051074 CN2710575Y (en) | 2004-04-23 | 2004-04-23 | Sustained release thrombus filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2710575Y true CN2710575Y (en) | 2005-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420051074 Expired - Fee Related CN2710575Y (en) | 2004-04-23 | 2004-04-23 | Sustained release thrombus filter |
Country Status (1)
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|---|---|
| CN (1) | CN2710575Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105662646A (en) * | 2015-12-29 | 2016-06-15 | 先健科技(深圳)有限公司 | Filter |
| WO2017092278A1 (en) * | 2015-11-30 | 2017-06-08 | 先健科技(深圳)有限公司 | Filters |
| CN106913392A (en) * | 2015-12-28 | 2017-07-04 | 先健科技(深圳)有限公司 | Filter |
| CN106913391A (en) * | 2015-12-28 | 2017-07-04 | 先健科技(深圳)有限公司 | Filter |
| CN107212913A (en) * | 2017-04-30 | 2017-09-29 | 沈阳新智源医疗用品有限公司 | A kind of support with thrombus capturing means takes bolt device |
| WO2018103376A1 (en) * | 2016-12-06 | 2018-06-14 | 先健科技(深圳)有限公司 | Filter |
| CN109771090A (en) * | 2019-03-19 | 2019-05-21 | 武汉唯柯医疗科技有限公司 | The thrombus filter for preventing cerebral embolism |
-
2004
- 2004-04-23 CN CN 200420051074 patent/CN2710575Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2017092278A1 (en) * | 2015-11-30 | 2017-06-08 | 先健科技(深圳)有限公司 | Filters |
| CN106913392A (en) * | 2015-12-28 | 2017-07-04 | 先健科技(深圳)有限公司 | Filter |
| CN106913391A (en) * | 2015-12-28 | 2017-07-04 | 先健科技(深圳)有限公司 | Filter |
| WO2017113627A1 (en) * | 2015-12-28 | 2017-07-06 | 先健科技(深圳)有限公司 | Filter |
| WO2017113628A1 (en) * | 2015-12-28 | 2017-07-06 | 先健科技(深圳)有限公司 | Filter |
| CN106913391B (en) * | 2015-12-28 | 2018-12-21 | 先健科技(深圳)有限公司 | Filter |
| CN106913392B (en) * | 2015-12-28 | 2019-05-31 | 先健科技(深圳)有限公司 | Filter |
| CN105662646A (en) * | 2015-12-29 | 2016-06-15 | 先健科技(深圳)有限公司 | Filter |
| WO2018103376A1 (en) * | 2016-12-06 | 2018-06-14 | 先健科技(深圳)有限公司 | Filter |
| CN107212913A (en) * | 2017-04-30 | 2017-09-29 | 沈阳新智源医疗用品有限公司 | A kind of support with thrombus capturing means takes bolt device |
| CN109771090A (en) * | 2019-03-19 | 2019-05-21 | 武汉唯柯医疗科技有限公司 | The thrombus filter for preventing cerebral embolism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZIZHENJUN; PATENTEE Free format text: FORMER OWNER: SHENZHEN XIANJIAN TECHNOLOGY CO., LTD. Effective date: 20060303 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060303 Address after: 518040, building 6, building 1, Tian An Digital City, Shenzhen, Guangdong, China. D Co-patentee after: Lv Shiwen Patentee after: Zi Zhenjun Co-patentee after: Yang Xikun Address before: 518040, building 6, building 1, Tian An Digital City, Shenzhen, Guangdong, China. D Patentee before: Shenzhen Lifetech Scientific Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050720 Termination date: 20120423 |