CN212089671U - Lower limb venous thrombosis taking device - Google Patents
Lower limb venous thrombosis taking device Download PDFInfo
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- CN212089671U CN212089671U CN202020301438.4U CN202020301438U CN212089671U CN 212089671 U CN212089671 U CN 212089671U CN 202020301438 U CN202020301438 U CN 202020301438U CN 212089671 U CN212089671 U CN 212089671U
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- 210000003141 lower extremity Anatomy 0.000 title claims description 20
- 206010047249 Venous thrombosis Diseases 0.000 title claims description 13
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 134
- 238000013151 thrombectomy Methods 0.000 claims abstract description 10
- 210000003462 vein Anatomy 0.000 claims abstract description 6
- 238000000605 extraction Methods 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 7
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Abstract
The utility model discloses a low limbs vein thrombus remove device, including the thrombectomy module, the thrombectomy module is including having elastic filter frame and the thrombectomy bag, the thrombectomy bag is one end opening, other end confined wire and weaves network structure, the open end and the filter frame middle part fixed connection of thrombectomy bag. The utility model discloses a can avoid using the thrombolytic medicine when the device is got the thrombus, the thrombus drops, the albuminuria scheduling problem appears, and is with low costs, and structure and easy operation have higher security.
Description
Technical Field
The utility model belongs to the technical field of medical intervention treatment, in particular to lower limb venous thrombosis remove device.
Background
Acute deep vein thrombosis of the lower limb is a serious disease and can cause death or disability due to pulmonary embolism. Related intraluminal interventions include catheter guided thrombolysis (CDT), thrombus aspiration or mechanical thrombectomy. CDT can promote thrombolysis and reduce the incidence rate of post-thrombotic syndrome (PTS), but has the defects of high bleeding risk, long thrombolysis time, long hospitalization time and need of close observation. The more mainstream treatment in recent years is mechanical thrombectomy, such as Rotarex thrombus catheter (Straub Medical, Wangs, switzerland), Trellis Reserve Medical Infusion System (Covidien usa), and angio jet power pulse catheter System (boston science, usa), which can remove the thrombus in the vein by negative pressure suction to improve the efficiency of thrombus removal, reduce the Infusion dose and the thrombolysis time of the thrombolytic drug, but may cause hemolysis, hemoglobinuria, vascular wall and valve damage, and at the same time, easily cause thrombus detachment, and in addition, the cost required for using the related equipment and disposable consumables is high.
In view of this, for a patient with deep venous thrombosis of lower limbs who has thrombolytic taboo, a thrombus removal device which has a simple structure and low cost and solves the problem of how to remove thrombus without using thrombolytic drugs, the problem that water flow pulse and suction operation need to be connected with external electric equipment is avoided, the cost of treatment equipment is reduced, and the problems of thrombus falling off, hemoglobinuria and the like are avoided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem to the existence of above-mentioned prior art provides a low limbs vein thrombus remove device.
The utility model discloses a following technical means realizes solving above-mentioned technical problem:
the utility model provides a lower limbs vein thrombus remove device, is including getting the bolt module, get the bolt module including having elastic filter frame and getting the bolt bag, get the bolt bag and be one end opening, the other end confined foraminiferous hole structure, get the open end and the filter frame middle part fixed connection of bolt bag.
The device further comprises a control module, wherein the control module comprises a guide wire, an inner core catheter and an outer catheter which are sequentially sleeved from inside to outside, and the lengths of the guide wire, the inner core catheter and the outer catheter are sequentially reduced;
the filter frame comprises support wires distributed in a bundle shape and annular connecting ends arranged at two ends of the support wires, the two connecting ends are fixedly connected with the inner core catheter and the outer catheter respectively, and the closed end of the thrombus removal bag is also fixedly connected with the inner core catheter.
Furthermore, the connection point of the bag opening of the thrombus taking bag and the filter frame is the point which is farthest away from the bunched distribution center on the support wire when the two connection ends of the filter frame are relatively close to each other.
Furthermore, one end of the outer catheter, which is far away from the thrombus taking bag, is provided with a knob sleeve, and the knob sleeve controls the compression degree of the outer catheter and the inner core catheter through rotation.
Further, the thrombus taking bag is made of medical polyurethane elastomer.
Furthermore, the supporting wires are of strip-shaped structures, and a plurality of strip-shaped supporting wires are distributed at equal intervals in a bundle shape.
Furthermore, four supporting wires are arranged.
Furthermore, the filter frame also comprises a support ring integrated with the support wire, the support ring is of an annular closed wavy structure, the support ring is arranged in the middle of the support wire, and the thrombus removal bag is laid on the support ring.
Further, the filter frame is made of titanium alloy memory metal.
Further, the filter frame is formed by laser cutting.
The utility model has the advantages that:
1. the use of thrombolytic drugs can be avoided when taking the thrombus;
2. when the suppository is taken out, the problem that the water flow pulse and the suction operation need to be connected with an external electric device can be avoided, and the cost of treatment equipment is reduced;
3. the thrombus taking bag is a polyurethane elastomer, has certain tensile property and certain permeability, allows plasma to permeate out, keeps thrombus tissues in the bag, and can greatly improve the accommodation rate and the retention rate of thrombus and avoid the problems of thrombus falling, hemoglobinuria and the like due to a storage type thrombus taking module consisting of the filter frame and the thrombus taking bag;
4. the whole set of equipment adopts an integral exchange system, can rapidly enter and exit a vascular cavity to carry out thrombus extraction under the guide of a guide wire, avoids the injury of a vascular intima caused by the movement of thrombus extraction equipment in the vascular cavity under the guide-wire-free guide, can rapidly carry out thrombus extraction operation for multiple times, and reduces the operation difficulty of thrombus extraction;
5. the two connecting ends of the filter frame are respectively fixedly connected with the outer catheter and the inner core catheter, so that the expansion diameter of the filter frame can be controlled by the relative movement distance of the outer catheter and the inner core catheter, the safety and the stability in the thrombus taking operation process can be greatly improved, on one hand, the damage to the inner wall of a blood vessel caused by the overlarge expansion diameter of the filter frame can be avoided, on the other hand, the actual expansion diameter of the filter frame can be controlled to ensure that thrombus completely passes through the filter frame during thrombus taking, and the thrombus falling caused by the lost thrombus is prevented;
6. the opening of the thrombus taking bag is directly connected with the middle part of the filter frame, so that the opening and the closing of the thrombus taking bag can be synchronously controlled when the filter frame is controlled, the supporting wires can play a role in cutting and separating, and the blocked thrombus is cut into a plurality of small thrombus blocks and then enters the thrombus taking bag, so that the thrombus taking bag is easier to condense and fold after the thrombus taking operation is finished.
Drawings
FIG. 1 is a schematic structural view of a thrombus removal device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first embodiment of a filter frame according to the present invention;
FIG. 3 is a schematic view of a second embodiment of the filter frame of the present invention (the number of support wires is more than four);
FIG. 4 is a schematic view of a second structure of a filter frame according to an embodiment of the present invention (the number of support wires is equal to four);
FIG. 5 is a schematic view of a lower extremity venous vessel in an embodiment of the present invention;
FIG. 6 is a schematic view showing the operation of the thrombus removal device according to the embodiment of the present invention;
FIG. 7 is a schematic view of a third embodiment of a filter frame according to the present invention;
fig. 8 is a schematic view of the filter frame and the thrombus removal bag of the third structure according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
As shown in fig. 1 and 2, a lower limb venous thrombus extraction device comprises a thrombus extraction module and a control module, wherein the thrombus extraction module comprises a filter frame 11 and a thrombus extraction bag 12, the control module comprises an outer catheter 21, an inner core catheter 22 and a guide wire 23, the inner core catheter 22 is sleeved outside the guide wire 23 and can slide along the length direction of the guide wire 23, the outer catheter 21 is sleeved outside the inner core catheter 22 and can slide along the length direction of the outer catheter 21, the length of the inner core catheter 22 is greater than that of the outer catheter 21, two ends of the inner core catheter 22 exceed the outer catheter 21, the length of the guide wire 23 is greater than that of the inner core catheter 22, and two ends of the guide wire 23 exceed the inner core catheter 22. The outer catheter 21 has a size of 6F and the inner core catheter 22 has a size of 4F, F being about 0.33 mm.
The thrombus taking module is installed on the control module, specifically, the filter frame 11 is made of metal with an elastic memory function, the filter frame 11 is composed of support wires 111 distributed in a bundle shape, two ends of each support wire 111 are respectively provided with an annular connecting end 112, the center of each annular connecting end 112 is coaxial with the center of the bundle-shaped distribution of the support wires 111, one connecting end 112 of the filter frame 11 is fixedly connected with the outer catheter 21, the other connecting end 112 of the filter frame 11 is fixedly connected with the inner catheter 22, the two connecting ends 112 of the filter frame 11 are welded with the outer catheter 21 or the inner catheter 22 by laser, the connecting ends in seamless transition can minimize the force required by penetrating through a thrombus block, the thrombus taking bag 12 is a tensile and deformable reticular structure with one open end and the other closed end, the material of the thrombus bag 12 is a metal wire woven or medical polyurethane elastomer, the open end of the thrombus bag 12 is fixedly connected with the middle part of the support wires 111, the closed end of the thrombus bag 12 is fixedly connected with the, the connection points from the far end to the near end on the thrombus extraction device are as follows: the far end of the thrombus taking-out device is the part which is firstly contacted with thrombus during thrombus taking work, namely the thrombus taking bag 12 is firstly contacted with thrombus during thrombus taking in the thrombus taking module.
The utility model discloses a principle is that embolus is got at the blood vessel intracavity through filter frame 11 and the long cartridge type storage device of embolus bag 12 formation, and the thrombus of collection gets into and gets to embolus bag 12 in, and the furthest reduction thrombus drops the possibility that leads to the embolism. When the thrombus removal operation is performed, as shown in fig. 6:
firstly, the inner core catheter 22 is pushed out to the far end outside the patient body, so that the filter frame 11 and the thrombus removal bag 12 are contracted and folded to be tightly attached to the outer walls of the outer catheter 21 and the inner core catheter 22, at the moment, the bag opening of the thrombus removal bag 12 is closed under the contraction action of the filter frame 11, and the relative positions of the outer catheter 21 and the inner core catheter 22 are kept fixed, as shown in (a) in fig. 6;
secondly, the whole structure of the inner core catheter 22, the outer catheter 21, the filter frame 11 and the thrombus removal bag 12 in a contraction and folding state is delivered to the thrombus part in the venous cavity under the guidance of the guide wire 23, as shown in (a) in fig. 6;
thirdly, the relative position fixing state of the outer catheter 21 and the inner core catheter 22 is released, the inner core catheter 22 is retracted to be far away from the far end, meanwhile, the relative positions of the two connecting ends 112 of the filter frame 11 are shortened, the filter frame 11 is expanded outwards, the diameter of the filter frame 11 is expanded, the opening of the thrombus taking bag 12 is guided to be expanded, and the retraction distance of the outer catheter 21 is adjusted according to the specific diseased condition of the patient to control the expansion diameter of the filter frame 11, as shown in (b) in fig. 6;
fourthly, controlling the outer catheter 21 to be further withdrawn away from the distal end, wherein the diameter of the pocket mouth can be adjusted according to the withdrawal resistance, as shown in (c) of fig. 6;
and fifthly, taking the inner core catheter 22, the outer catheter 21, the filter frame 11 and the thrombus taking bag 12 out of the sheath, keeping the guide wire 23 in the vascular cavity, then flushing the thrombus taking bag 12 with heparin water, taking out thrombus, and repeating the operation according to a specific treatment scheme to take out the thrombus for multiple times.
Adopt above-mentioned technical scheme's thrombectomy device and the operation of thrombectomy that corresponds, to the dark vein thrombosis patient of low limbs that has the thrombolysis taboo, use the utility model discloses the device has following beneficial effect:
1. the use of thrombolytic drugs can be avoided when taking the thrombus;
2. when the thrombus is taken, the hemoglobinuria caused by water flow pulse and suction operation can be avoided, and external electric equipment is not needed, so that the cost of treatment equipment is reduced;
3. the thrombus taking bag 12 is of a net-shaped structure which can be stretched and deformed, has a certain stretching characteristic and a certain permeability, allows plasma to permeate out, and simultaneously keeps thrombus tissues in the bag, and the accommodating type thrombus taking module formed by the filter frame 11 and the thrombus taking bag 12 can greatly improve the accommodation rate and the retention rate of thrombus and avoid the problems of thrombus falling, hemoglobinuria and the like;
4. the whole set of equipment adopts an integrated switching (OTW) system, can rapidly enter and exit a blood vessel cavity to carry out thrombus extraction under the guide of a guide wire, avoids the injury of a blood vessel intima caused by the movement of thrombus extraction equipment in the cavity without the guide wire, can rapidly carry out thrombus extraction operation for multiple times, and reduces the operation difficulty of thrombus extraction;
5. the two connecting ends 112 of the filter frame 11 are respectively fixedly connected with the outer catheter 21 and the inner core catheter 22, so that the expansion diameter of the filter frame 11 can be controlled by the relative movement distance of the outer catheter 21 and the inner core catheter 22, the safety and the stability in the thrombus taking operation process can be greatly improved, on one hand, the damage to the inner wall of a blood vessel caused by the overlarge expansion diameter of the filter frame 11 can be avoided, on the other hand, the actual expansion diameter of the filter frame 11 can be controlled to ensure that thrombus completely passes through the filter frame 11 during thrombus taking, and the thrombus falling caused by the left thrombus is prevented;
6. the opening of the thrombus taking bag 12 is directly connected with the middle part of the filter frame 11, so that when the filter frame 11 is controlled, the opening and closing of the thrombus taking bag 12 can be synchronously controlled, namely when the filter frame 11 is completely folded, the thrombus taking bag 12 is also in a completely folded state, the whole of the inner core catheter 22, the outer catheter 21, the filter frame 11 and the thrombus taking bag 12 can easily penetrate thrombus, when the filter frame 11 is unfolded, the thrombus taking bag 12 can be synchronously opened, and the diameter of the opening of the opened thrombus taking bag 12 can automatically match the unfolded diameter of the filter frame 11, so that when the inner core catheter 22 and the outer catheter 21 are retracted, the thrombus can firstly pass through the support wires 111 distributed in a bundle shape, at the moment, the support wires 111 can play a cutting and separating effect, the blocked thrombus is divided into a plurality of small blocks and then enters the thrombus taking bag 12, and the thrombus taking bag 12 can be easily condensed and folded after the thrombus taking operation is finished, and the thrombus is convenient to take out.
In order to further ensure and improve the unfolding synchronization state of the filter frame 11 and the thrombus removal bag 12, the connection point of the bag opening of the thrombus removal bag 12 and the filter frame 11 is the point of the support wire 111 farthest from the center of the bunch-shaped distribution when the two connecting ends 112 of the filter frame 11 are relatively close. Therefore, when the filter frame 11 is unfolded, the diameter of the bag opening of the thrombus taking bag 12 is consistent with the maximum unfolding diameter of the filter frame 11, thrombus is prevented from being lost, and the thrombus removing efficiency is improved.
As shown in fig. 1, in order to further improve the convenience of controlling the expansion degree of the filter frame 11, a knob sleeve 24 is provided at the proximal end of the outer catheter 21, the knob sleeve 24 controls the compression degree of the outer catheter 2 and the inner core catheter 22 by rotating, when the expansion degree of the filter frame 11 needs to be adjusted, the compression degree between the outer catheter 2 and the inner core catheter 22 is reduced by rotating the knob sleeve 24, and the compression degree between the outer catheter 2 and the inner core catheter 22 is increased by rotating the knob sleeve 24 in the opposite direction after the adjustment is completed until the elasticity of the filter frame 11 is smaller than the friction force between the outer catheter 2 and the inner core catheter 22.
The filter frame 11 is made of titanium alloy memory metal.
The filter frame 11 described above is formed by laser cutting and has a variety of external configurations, including:
1. as shown in fig. 3 and 4, the supporting filament 111 is a strip-shaped structure, and a plurality of strip-shaped supporting filaments 111 are distributed at equal intervals in a bundle shape; the supporting wire 111 is simple in structure and convenient to process;
the number of the supporting wires 111 in the strip structure is preferably four, and as will be described in conjunction with fig. 5, the diameter of the common iliac vein (I) of the lower limb of the human body is about 14mm, the diameter of the external iliac vein (II) is more about 12mm, the diameter of the total femoral vein (III) is about 10mm, and the diameter of the femoral vein (IV) is about 8mm, so that the filter frame 11 for supporting the thrombus extraction bag 12 is preferably 10mm in diameter and 14mm in maximum diameter in normal unfolding, and the blood vessel is not injured in thrombus extraction; in order to make the cross section of the filter frame 11 as close to a circle as possible when the filter frame is unfolded, achieve a better fitting effect with the inner wall of a blood vessel, and further achieve a better thrombus removal effect, the number of the support wires 111 is theoretically as large as possible, but is limited to the limitation of the diameter of the blood vessel of the lower limb vein, the actual unfolding amplitude of the filter frame 11 is not large, the number of the support wires 111 is too large, and a barrier is formed to prevent thrombus from entering the thrombus removal bag 12, so that thrombus removal operation is influenced. In summary, the four skills of positioning the number of the supporting wires 111 satisfy the requirements of the unfolding section of the filter frame 11, and the spacing gaps between the supporting wires 111 can be enlarged as much as possible, so that the adverse effect on the embolectomy operation is reduced.
2. As shown in fig. 2, the supporting wire 111 is a net structure, and the supporting wire 111 includes a first small section, a second small section and a third small section, wherein the first small section is connected to the connecting end 112, two ends of the second small section are respectively connected to the first small section and the third small section, the third small section is located in the middle of the filter frame 11, two ends of the first small section are connected to the two second small sections, and two ends of the third small section are connected to the two second small sections; like this network structure's support silk 111 has more stable characteristics, and the third subsection degree of deformation is little during the expansion, and forms longer thrombus between the vascular wall and collect the changeover portion, avoids omitting the thrombus. Correspondingly, the connection part between the mouth of the thrombus removal bag 12 and the filter frame 11 in this state is the proximal end of the third small section, namely, the end of the third small section far away from the thrombus removal bag 12, and the right side in fig. 2 is the proximal end.
As another embodiment, the present embodiment is different from the above embodiments in that the thrombus removal bag 12 is a medical polyurethane elastomer with holes, and the medical polyurethane elastomer has good extensibility, high strength, wear resistance, good biocompatibility, no distortion, no anaphylaxis, and good blood compatibility, so that it can not only ensure the penetration effect of the liquid such as plasma, but also trap thrombus.
In order to obtain the thrombus extraction effect as high as possible, the present invention needs to improve the roundness of the thrombus extraction bag 12 when it is expanded, and another embodiment is provided below, in which a third filter frame structure is proposed to solve this problem.
As shown in fig. 7 and 8, in the present embodiment, the structural features of the filter frame 11 are: the titanium alloy memory metal is formed by laser cutting and comprises four strip-shaped supporting wires 111; the filter frame 11 further comprises a support ring 113, the support ring 113 is in an annular closed wavy structure, the width of the support ring 113 is controlled to be 0.5-1 mm, the support ring 113 is arranged in the middle of the support wire 111, and the support ring 113 is formed by laser cutting of the filter frame 11, namely the support ring 113 and the support wire 111 are in an integral structure; correspondingly, the thrombus taking bag 12 is made of medical polyurethane elastomer with holes, and the thrombus taking bag 12 is laid on the support ring 113 to form a covered stent structure of the thrombus taking bag 12 and the support ring 113.
The support rings 113 may also be two staggered stacks, and the wave crests and wave troughs of the two support rings 113 correspond. The two support rings 113 may further improve the stability of the filter frame 11 when deployed.
The structural features of the above-described embodiment have the following advantages: (1) the support ring 113 is an annular closed wave-shaped structure, has the capability of telescopic deformation, can deform along with the expansion of the support wire 111, and has the characteristic of circular shape, so that the bag mouth of the embolectomy bag 12 laid on the support ring 113 keeps the roundness as large as possible; (2) the support ring 113 and the support wire 111 are of an integrated structure cut by laser, and the support ring 113 and the embolectomy bag 12 are of a film-covered structure, so that the embolectomy module does not have any structure or part such as a mechanically connected joint in the inner cavity of the blood vessel, the blood vessel is prevented from being damaged, and the safety is improved.
When the filter frame 11 is processed, a titanium alloy memory metal blank with the maximum diameter of 12mm can be adopted for laser cutting processing, so that the memory characteristic of the filter frame 11 is kept at the maximum diameter of 12mm, after the filter frame is entered into a blood vessel, even if the knob sleeve 24 is loosened, the maximum diameter of the support wire 111 of the filter frame 11 is 12mm after being unfolded, the operation of taking out the venous thrombus of limbs is safe, and when a larger unfolding diameter is needed, the outer catheter 21 can be adjusted to realize the operation.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a lower limbs vein thrombus remove device, its characterized in that includes and gets a bolt module, get a bolt module including having elastic filter frame (11) and getting a bolt bag (12), get bolt bag (12) and be one end opening, the other end confined area cavity structure, get the open end and filter frame (11) middle part fixed connection of bolt bag (12).
2. The device for extracting venous thrombosis of lower limbs according to claim 1, further comprising a control module, wherein the control module comprises a guide wire (23), an inner core catheter (22) and an outer catheter (21) which are sleeved from inside to outside in sequence, and the lengths of the guide wire (23), the inner core catheter (22) and the outer catheter (21) are gradually reduced;
the filter frame (11) comprises support wires (111) distributed in a bundle shape and annular connecting ends (112) arranged at two ends of the support wires (111), the two connecting ends (112) are respectively and fixedly connected with the inner core catheter (22) and the outer catheter (21), and the closed end of the thrombus removal bag (12) is also fixedly connected with the inner core catheter (22).
3. A device for venous thrombus extraction of the lower limbs according to claim 2, wherein the connection point of the mouth of the thrombus extraction bag (12) and the filter holder (11) is the point on the support wire (111) farthest from the center of the bundle-like distribution when the two connection ends (112) of the filter holder (11) are relatively close.
4. The lower limb venous thrombosis removal device of claim 3, wherein the end of the outer catheter (21) far away from the thrombosis removal bag (12) is provided with a knob sleeve (24), and the knob sleeve (24) controls the compression degree of the outer catheter (2) and the inner catheter (22) through rotation.
5. A lower extremity venous thrombosis removal device as claimed in claim 4 wherein said thrombosis removal pocket (12) is of a medical polyurethane elastomer.
6. The device for extracting venous thrombosis of lower limbs according to claim 5, characterized in that the supporting wires (111) are in a strip structure, and a plurality of strip supporting wires (111) are bunched and distributed at equal intervals.
7. A lower extremity venous thrombosis removal device as claimed in claim 6 wherein there are four of said support wires (111).
8. The lower limb venous thrombosis removal device of claim 7 wherein said filter frame (11) further comprises a support ring (113) integral with said support wire (111), said support ring (113) having an annularly enclosed undulating configuration, said support ring (113) being disposed intermediate said support wire (111), said thrombectomy pouch (12) being disposed on said support ring (113).
9. The device for extracting venous thrombosis of lower limbs according to any one of claims 1 to 8, wherein the filter holder (11) is a titanium alloy memory metal.
10. A device for venous thrombus extraction of the lower limbs according to claim 9, wherein the filter holder (11) is laser engraved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301438.4U CN212089671U (en) | 2020-03-11 | 2020-03-11 | Lower limb venous thrombosis taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301438.4U CN212089671U (en) | 2020-03-11 | 2020-03-11 | Lower limb venous thrombosis taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212089671U true CN212089671U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020301438.4U Active CN212089671U (en) | 2020-03-11 | 2020-03-11 | Lower limb venous thrombosis taking device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111227909A (en) * | 2020-03-11 | 2020-06-05 | 周汝航 | Lower limb venous thrombosis taking device |
| CN113855159A (en) * | 2021-09-29 | 2021-12-31 | 北京泰杰伟业科技有限公司 | A combined control thrombectomy device |
-
2020
- 2020-03-11 CN CN202020301438.4U patent/CN212089671U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111227909A (en) * | 2020-03-11 | 2020-06-05 | 周汝航 | Lower limb venous thrombosis taking device |
| CN113855159A (en) * | 2021-09-29 | 2021-12-31 | 北京泰杰伟业科技有限公司 | A combined control thrombectomy device |
| CN113855159B (en) * | 2021-09-29 | 2024-04-09 | 北京泰杰伟业科技股份有限公司 | Combined type regulation and control thrombus taking device |
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