CN213552139U - Iliac femoral vein thrombus clearing device - Google Patents
Iliac femoral vein thrombus clearing device Download PDFInfo
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- CN213552139U CN213552139U CN202020883039.3U CN202020883039U CN213552139U CN 213552139 U CN213552139 U CN 213552139U CN 202020883039 U CN202020883039 U CN 202020883039U CN 213552139 U CN213552139 U CN 213552139U
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Abstract
The utility model discloses a iliofemoral femoral vein thrombus clearing device, include: comprises a long cage-shaped self-expansion type recoverable bracket made of memory alloy, a guide core, a sleeve, a Y-shaped guide tube, a torsion controller, a valve and a negative pressure suction device; the valve can cover the near-end pipe orifice of the Y-shaped guide pipe; the sleeve is arranged in the Y-shaped guide tube in a penetrating way; the guide core is arranged in the sleeve in a penetrating mode, the near end of the guide core extends out of the sleeve and is provided with a torsion controller for being held by a person, the far end of the guide core is sleeved with a long cage-shaped self-expansion type recoverable support, one end of the far end and the near end of the long cage-shaped self-expansion type recoverable support is fixed on the guide core, the other end of the long cage-shaped self-expansion type recoverable support is movably sleeved on the guide core, the long cage-shaped self-expansion type recoverable support can be contracted into a strip-shaped tube bundle and is arranged in the sleeve, and when the long cage-shaped self-expansion type recoverable support is separated from the sleeve, the. The utility model has the advantages of simple structure and convenient operation.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to iliofemoral femoral vein thrombus clearing device for treating iliofemoral femoral vein thrombus.
Background
Pulmonary artery embolism (pulmonary embolism for short, PE) is a series of clinical pathological physiological changes mainly caused by pulmonary circulation dysfunction, and sudden death is seriously caused because peripheral deep venous thrombosis or thrombus in right heart cavity falls off to enter pulmonary circulation to block the pulmonary artery or branches of the pulmonary artery. Research shows that embolus causing PE is mainly derived from thrombus falling off from deep limb veins or pelvic veins and accounts for 60-90% of the source of the embolus. Pulmonary thromboembolism is a serious complication following iliac-femoral vein thrombosis.
The existing method for clearing the iliac femoral vein thrombosis comprises the following steps: 1. the representative mechanical device is Angiojet, which is a mechanical device that removes thrombus from the whole iliofemoral vein by flushing broken thrombus with water flow and then sucking fine thrombus with a catheter, and has the following disadvantages: a. blood loss is high; b. the thrombus removal device has the advantages that the thrombus removal range is limited due to large damage to the superficial femoral vein venous valve, and the thrombus removal device is only used for treating lower limb central deep vein thrombus at the proximal ends of the iliac vein and the femoral vein; c. the cost is high and the operation is complex. 2. The thrombus is extracted by a pure catheter under negative pressure, the effect on the fresh thrombus in the acute stage is better, and the defects are as follows: a. poor clearance of subacute or organized thrombi; b. the large negative pressure suction easily damages the inner membrane; c. larger clots cannot be broken and removed from the catheter.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, convenient operation, it is little to the human body damage, high usage safety's iliofemoral femoral vein thrombus clearing device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the iliac femoral vein thrombosis clearing device comprises a long cage-shaped self-expansion type recoverable bracket made of memory alloy, a guide core, a sleeve, a Y-shaped guide tube, a twisting controller, a valve and a negative pressure suction device;
the structure of the Y-shaped guide tube comprises: the guiding main pipe is provided with a far end and a near end, and the near end of the guiding main pipe is forked to form a suction branch pipe communicated with the inside of the guiding main pipe;
the suction branch pipe of the Y-shaped guide pipe can be connected with a negative pressure suction device;
the valve can cover the proximal pipe orifice of the main guide pipe or the branch suction pipe of the Y-shaped guide pipe and is used for sealing and plugging the proximal pipe orifice of the main guide pipe or the branch suction pipe;
the sleeve is arranged in the main guide pipe of the Y-shaped guide pipe in a penetrating mode, and the length of the sleeve is longer than that of the main guide pipe of the Y-shaped guide pipe;
the guide core is arranged in the sleeve in a penetrating way, the near end of the guide core extends out of the sleeve and is provided with a twist controller for being held by a person, the far end of the guide core is sleeved with a long cage-shaped self-expansion type recoverable bracket,
one end of the far end and the near end of the long cage-shaped self-expansion type recoverable support is fixed on the guide core, the other end of the long cage-shaped self-expansion type recoverable support is movably sleeved on the guide core, the long cage-shaped self-expansion type recoverable support can be contracted into a strip-shaped tube bundle shape and is arranged in the sleeve, and when the sleeve is retracted, the long cage-shaped self-expansion type recoverable support can be released and expanded into a long cage shape by the strip-shaped tube bundle shape.
Further, the aforementioned iliac-femoral vein thrombosis removal device, wherein: the near end of the long cage-shaped self-expansion type recoverable support is fixed on the guide core, and the far end of the long cage-shaped self-expansion type recoverable support is movably sleeved on the guide core.
Further, the aforementioned iliac-femoral vein thrombosis removal device, wherein: the far end of the long cage-shaped self-expansion type recoverable stent is in a conical mesh shape when the long cage-shaped self-expansion type recoverable stent is released and unfolded, the meshes are compact, and the near end of the long cage-shaped self-expansion type recoverable stent is also in a conical mesh shape when the long cage-shaped self-expansion type recoverable stent is released and unfolded, and the meshes are sparse.
Further, the aforementioned iliac-femoral vein thrombosis removal device, wherein: the negative pressure suction device is a needle cylinder which can be connected with the suction branch pipe of the Y-shaped guide pipe.
Further, the aforementioned iliac-femoral vein thrombosis removal device, wherein: the installation of controller detachably is turned round and is fixed on leading the core, and the concrete structure of turning round the controller includes: the outer tube and the inner tube that the core passed can supply to lead, the outer wall of inner tube is provided with the external screw thread, front end at the inner tube is provided with a plurality of flexible card lamella along circumference, the back end inner wall of outer tube is provided with the internal thread that can be connected with the external screw thread of inner tube looks screw-thread fit, the anterior segment inner wall of outer tube be can with the inner cone surface of the cooperation contact of all flexible card lamella on the inner tube, when inner tube and outer tube looks screw-thread are screwed, all flexible card lamellas of inner tube front end can inwards draw in gradually and hold tightly the core of leading of wearing to locate in inner tube and outer tube along the inner cone surface of outer tube.
Through the implementation of the above technical scheme, the beneficial effects of the utility model are that: the structure is simple, the manufacturing cost is relatively low, the operation is convenient, and massive thrombus can be crushed through the change of the contraction and expansion states of the long cage-shaped self-expansion type recoverable support; the extended long cage-shaped self-expansion type recoverable stent can rotate in the thrombus through the guide core, and the subacute-stage thrombus is stripped from the vessel wall; and residual thrombus can be sucked out of the body through the negative pressure suction device, so that the iliac-femoral vein thrombus can be effectively and reliably cleared, and the injury to the venous valve and the vascular wall is small.
Drawings
Fig. 1 is a schematic structural view of the iliac femoral vein thrombosis removing device of the present invention.
Fig. 2 is a schematic view of the connection between the long cage self-expanding recoverable stent shown in fig. 1 and the guide core in a released and deployed state.
Fig. 3 is a schematic structural view of the Y-shaped guide tube shown in fig. 1.
Fig. 4 is a schematic view of the long cage self-expanding recoverable stent shown in fig. 1 in use in a released deployed state.
Fig. 5 is a schematic structural diagram of the twist controller shown in fig. 1.
Fig. 6 is a schematic structural view of fig. 1 with the Y-shaped guide tube, the valve and the negative pressure suction device hidden.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the iliac-femoral vein thrombosis removing device comprises a long cage-shaped self-expansion type recoverable bracket 1 made of memory alloy, a guide core 2, a sleeve 3, a Y-shaped guide tube, a twisting controller 5, a valve 6 and a negative pressure suction device 7;
the structure of the Y-shaped guide tube comprises: a main guide pipe 4, one end of the main guide pipe 4 is a far end, the other end is a near end, and the near end of the main guide pipe 4 is branched to form a branch suction pipe 8 communicated with the inside of the main guide pipe 4;
the suction branch pipe 8 of the Y-shaped guide pipe can be connected with a negative pressure suction device 7;
the valve 6 can be covered on the proximal end pipe orifice of the main guide pipe 4 or the branch suction pipe 8 of the Y-shaped guide pipe and is used for sealing and plugging the proximal end pipe orifice of the main guide pipe 4 or the branch suction pipe 8;
the sleeve 3 is arranged in the main guide pipe 4 of the Y-shaped guide pipe in a penetrating way, and the length of the sleeve 3 is longer than that of the main guide pipe 4 of the Y-shaped guide pipe;
the guide core 2 is arranged in the sleeve 3 in a penetrating way, the near end of the guide core 2 extends out of the sleeve 3 and is provided with a twist controller 5 for being held by a person, the far end of the guide core 2 is sleeved with a long cage-shaped self-expansion type recoverable support 1,
one end of the far and near ends of the long cage-shaped self-expansion recoverable support 1 is fixed on the guide core 2, the other end of the long cage-shaped self-expansion recoverable support is movably sleeved on the guide core 2, the long cage-shaped self-expansion recoverable support 1 can be contracted into a strip-shaped tube bundle shape and is arranged in the sleeve, and when the sleeve 3 is withdrawn away from the long cage-shaped self-expansion recoverable support 1, the long cage-shaped self-expansion recoverable support 1 can be released and expanded into a long cage shape by the strip-shaped tube bundle shape;
in the embodiment, the near end of the long cage-shaped self-expansion type recoverable support 1 is fixed on the guide core 2, and the far end of the long cage-shaped self-expansion type recoverable support 1 is movably sleeved on the guide core 2, so that the operation is more convenient;
in the embodiment, when the long cage-shaped self-expansion type recoverable stent 1 is released and deployed, the far end of the long cage-shaped self-expansion type recoverable stent 1 is in a conical mesh shape and has dense meshes, and when the long cage-shaped self-expansion type recoverable stent 1 is released and deployed, the near end of the long cage-shaped self-expansion type recoverable stent 1 is also in a conical mesh shape and has sparse meshes, so that not only is the capture of thrombus convenient and the thrombus removal efficiency improved, but also the broken thrombus can be prevented from entering the pulmonary circulation, and the occurrence of complications such as pulmonary artery thromboembolism and;
in the embodiment, the negative pressure suction device 7 is a needle cylinder which can be connected with the suction branch pipe 8 of the Y-shaped guide pipe, the needle cylinder is relatively low in manufacturing cost, and the use cost is reduced;
in this embodiment, the torque controller 5 is detachably mounted and fixed on the guide core 2, and the specific structure of the torque controller 5 includes: the outer tube 51 and the inner tube 52 through which the guide core 2 can pass, the outer wall of the inner tube 52 is provided with external threads, the front end of the inner tube 52 is circumferentially provided with a plurality of flexible clamping flaps 53, the inner wall of the rear section of the outer tube 51 is provided with internal threads which can be in threaded fit connection with the external threads of the inner tube 52, the inner wall of the front section of the outer tube 51 is an inner conical surface 54 which can be in fit contact with all the flexible clamping flaps 53 on the inner tube 52, when the inner tube 52 and the outer tube 51 are screwed, all the flexible clamping flaps 53 at the front end of the inner tube 52 can gradually inwards fold along the inner conical surface 54 of the outer tube 51 and clasp the guide core 2 in the inner tube 52 and the outer tube 51, so as to be fixedly connected to the guide core 2;
in practical application, the iliac-femoral vein thrombus removing method adopting the iliac-femoral vein thrombus removing device comprises the following steps:
(1) firstly, a Y-shaped guide tube is sent into the iliofemoral vein through a blood sheath which is already placed into the iliofemoral vein;
(2) then a sleeve 3 which is internally provided with a long cage-shaped self-expansion type recoverable support 1 and a guide core 2 which are contracted into a strip-shaped tube bundle shape is sent into the thrombus lesion area of the iliofemoral vein through a main guide tube 4 of a Y-shaped guide tube;
(3) withdrawing the sleeve 3 through the main guiding pipe 4 of the Y-shaped guiding pipe to separate the sleeve 3 from the long cage-shaped self-expansion type recoverable support 1, and after the long cage-shaped self-expansion type recoverable support 1 is separated from the sleeve 3, the long cage-shaped self-expansion type recoverable support 1 can self-expand to release, expand into a cage shape and embed thrombus, so that the thrombus is cut and crushed;
(4) sequentially sleeving the outer tube 51 and the inner tube 52 of the twist controller 5 into the near end of the guide core 2, and screwing the inner tube 52 and the outer tube 51 to ensure that all flexible clamping flaps 53 at the front end of the inner tube 52 are gradually folded inwards along the inner conical surface 54 of the outer tube 51 and tightly hold the guide core 2, so that the twist controller 5 is fixedly connected to the guide core 2;
(5) the guide core 2 is driven to rotate by the rotary knob 5, and the long cage-shaped self-expansion type recoverable support 1 is synchronously driven to rotate, so that residual thrombus adhered to the wall of the vein vessel is scraped by the rotation of the long cage-shaped self-expansion type recoverable support 1;
(6) the guide core 2 and the long cage-shaped self-expansion type recoverable support 1 are pulled out of the body through a main guide pipe 4 of the Y-shaped guide pipe by a twisting controller 5, so that the long cage-shaped self-expansion type recoverable support 1 pulls out thrombus with the aperture larger than the aperture of the far-end mesh in a thrombus lesion area;
(7) sealing and blocking a valve 6 to a near-end pipe orifice of a main guide pipe 4 of the Y-shaped guide pipe, and then connecting a suction branch pipe 8 of the Y-shaped guide pipe with a negative pressure suction device 7, wherein in the embodiment, the negative pressure suction device 7 is a needle cylinder which can be connected with the suction branch pipe of the guide pipe; then opening the negative pressure suction device 7, and sucking residual thrombus smaller than the aperture of the meshes at the far end of the long cage-shaped self-expansion type recoverable support in the thrombus lesion area out of the body through negative pressure;
(8) after the thrombus is removed, the long cage-shaped self-expansion type recoverable support 1 is directly taken out of the body through a Y-shaped guide tube by pulling a twisting controller 5 fixed on the guide core 2, and then the Y-shaped guide tube is taken out of the iliac femoral vein through a vascular sheath; or the long cage-shaped self-expansion type recoverable support 1 is collected in the Y-shaped guide tube, and then the long cage-shaped self-expansion type recoverable support 1 and the Y-shaped guide tube are taken out of the iliac femoral vein through the vascular sheath to the outside.
The utility model has the advantages that: the structure is simple, the manufacturing cost is relatively low, the operation is convenient, and massive thrombus can be crushed through the change of the contraction and expansion states of the long cage-shaped self-expansion type recoverable support; the extended long cage-shaped self-expansion type recoverable stent can rotate in the thrombus through the guide core, and the subacute-stage thrombus is stripped from the vessel wall; and residual thrombus can be sucked out of the body through the negative pressure suction device, so that the iliac-femoral vein thrombus can be effectively and reliably cleared, and the injury to the venous valve and the vascular wall is small.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
Claims (5)
1. Iliac femoral vein thrombus clearing device which characterized in that: comprises a long cage-shaped self-expansion type recoverable bracket made of memory alloy, a guide core, a sleeve, a Y-shaped guide tube, a torsion controller, a valve and a negative pressure suction device;
the structure of the Y-shaped guide tube comprises: the guiding main pipe is provided with a far end and a near end, and the near end of the guiding main pipe is forked to form a suction branch pipe communicated with the inside of the guiding main pipe;
the suction branch pipe of the Y-shaped guide pipe can be connected with a negative pressure suction device;
the valve can cover the proximal pipe orifice of the main guide pipe or the branch suction pipe of the Y-shaped guide pipe and is used for sealing and plugging the proximal pipe orifice of the main guide pipe or the branch suction pipe;
the sleeve is arranged in the main guide pipe of the Y-shaped guide pipe in a penetrating mode, and the length of the sleeve is longer than that of the main guide pipe of the Y-shaped guide pipe;
the guide core is arranged in the sleeve in a penetrating way, the near end of the guide core extends out of the sleeve and is provided with a twist controller for being held by a person, the far end of the guide core is sleeved with a long cage-shaped self-expansion type recoverable bracket,
one end of the far end and the near end of the long cage-shaped self-expansion type recoverable support is fixed on the guide core, the other end of the long cage-shaped self-expansion type recoverable support is movably sleeved on the guide core, the long cage-shaped self-expansion type recoverable support can be contracted into a strip-shaped tube bundle shape and is arranged in the sleeve, and when the sleeve is retracted, the long cage-shaped self-expansion type recoverable support can be released and expanded into a long cage shape by the strip-shaped tube bundle shape.
2. The iliac-femoral vein thrombosis removal device of claim 1, wherein: the near end of the long cage-shaped self-expansion type recoverable support is fixed on the guide core, and the far end of the long cage-shaped self-expansion type recoverable support is movably sleeved on the guide core.
3. The iliac-femoral vein thrombosis removal device of claim 2, wherein: the far end of the long cage-shaped self-expansion type recoverable stent is in a conical mesh shape when the long cage-shaped self-expansion type recoverable stent is released and unfolded, the meshes are compact, and the near end of the long cage-shaped self-expansion type recoverable stent is also in a conical mesh shape when the long cage-shaped self-expansion type recoverable stent is released and unfolded, and the meshes are sparse.
4. The iliac-femoral vein thrombosis removal device of claim 1, wherein: the negative pressure suction device is a needle cylinder which can be connected with the suction branch pipe of the Y-shaped guide pipe.
5. The iliac-femoral vein thrombectomy device of claim 1, 2, 3 or 4, wherein: the installation of controller detachably is turned round and is fixed on leading the core, and the concrete structure of turning round the controller includes: the outer tube and the inner tube that the core passed can supply to lead, the outer wall of inner tube is provided with the external screw thread, front end at the inner tube is provided with a plurality of flexible card lamella along circumference, the back end inner wall of outer tube is provided with the internal thread that can be connected with the external screw thread of inner tube looks screw-thread fit, the anterior segment inner wall of outer tube be can with the inner cone surface of the cooperation contact of all flexible card lamella on the inner tube, when inner tube and outer tube looks screw-thread are screwed, all flexible card lamellas of inner tube front end can inwards draw in gradually and hold tightly the core of leading of wearing to locate in inner tube and outer tube along the inner cone surface of outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883039.3U CN213552139U (en) | 2020-05-22 | 2020-05-22 | Iliac femoral vein thrombus clearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883039.3U CN213552139U (en) | 2020-05-22 | 2020-05-22 | Iliac femoral vein thrombus clearing device |
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| CN213552139U true CN213552139U (en) | 2021-06-29 |
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| CN202020883039.3U Active CN213552139U (en) | 2020-05-22 | 2020-05-22 | Iliac femoral vein thrombus clearing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111658072A (en) * | 2020-05-22 | 2020-09-15 | 张家港市中医医院 | Iliac femoral vein thrombus removing device and thrombus removing method |
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2020
- 2020-05-22 CN CN202020883039.3U patent/CN213552139U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111658072A (en) * | 2020-05-22 | 2020-09-15 | 张家港市中医医院 | Iliac femoral vein thrombus removing device and thrombus removing method |
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