CN217447931U - Thrombus crushing assembly and thrombus crushing device - Google Patents
Thrombus crushing assembly and thrombus crushing device Download PDFInfo
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- CN217447931U CN217447931U CN202120887749.8U CN202120887749U CN217447931U CN 217447931 U CN217447931 U CN 217447931U CN 202120887749 U CN202120887749 U CN 202120887749U CN 217447931 U CN217447931 U CN 217447931U
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- thrombus
- crushing head
- extension part
- blood vessel
- crushing
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 83
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 40
- 238000005452 bending Methods 0.000 claims abstract description 14
- 238000013467 fragmentation Methods 0.000 claims 2
- 238000006062 fragmentation reaction Methods 0.000 claims 2
- 230000006378 damage Effects 0.000 abstract description 6
- 230000005489 elastic deformation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002537 thrombolytic effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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Abstract
The utility model discloses a thrombus crushing assembly and a thrombus crushing device, which comprises an extension part with a smooth elastic structure and a crushing head formed by roundabout bending of a smooth elastic wire, wherein the crushing head is positioned at the first end of the extension part; when the crushing head is used, the extension part pushes the crushing head to move along the blood vessel in the blood vessel and drives the crushing head to rotate. The utility model has the advantages of simple structure, effective thrombus breaking and no damage to the inner wall of the blood vessel.
Description
Technical Field
The utility model relates to a get rid of the field of blocking in the blood vessel, concretely relates to broken subassembly of thrombus and a thrombus breaker.
Background
Various thrombi exist in human blood vessels due to various reasons, and relate to an arterial system and a venous system, and the thrombi are required to be rapidly and effectively removed, the blockage is relieved, and the blood vessel function is required to be repaired. The thrombus removing method comprises incision thrombus removal, systemic thrombolysis, catheter thrombolysis, mechanical thrombus removal and the like. In particular, for thrombus with high hardness and difficult suction and output by a thrombus suction catheter, a device which cuts the thrombus and then sucks the thrombus is usually adopted, and a patent 'high-efficiency thrombus crusher' (application No. 202020149554.9) discloses a device for crushing the thrombus, which adopts a mode of moving a push-pull tube to deform a cutting wire so as to cut the thrombus. But because the catheter at the front end of the cutting wire is thicker (1), the thrombus catheter with higher hardness is not easy to pass through; (2) as can be seen from the figure, the maximum radius of the cutting wire after being unfolded is the same regardless of the size of the inner diameter of the blood vessel, i.e., the inner diameter of the thin blood vessel is expanded, and the blood vessel may be damaged if the elasticity of the blood vessel is poor. (3) If the protective tube is soft, the cutting wire cannot be unfolded and hard thrombus cannot be cut; if the material of the protective tube is too hard, the inner wall of the blood vessel may be damaged when cutting thrombus. (4) This high-efficient thrombus breaker structure is complicated, and the subassembly is more, uses the operation inconvenient, and the suitability is low.
Therefore, in order to solve the above problems, a thrombus crushing device with a simple structure and convenient operation is needed, which can effectively crush thrombus and can not damage the inner wall of a blood vessel.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect among the prior art, provide a thrombus breaker, its simple structure, can effectively break the thrombus and can not harm the vascular inner wall.
The utility model discloses a broken subassembly of thrombus, including the extension that has slick and sly elastic construction and the broken head that forms by the circuitous bending of slick and sly elastic filament, specific, this extension is the filament. Said crushing head being located at a first end of said extension; when the crushing head is used, the extension part pushes the crushing head to move along the blood vessel in the blood vessel and drives the crushing head to rotate. Because the crushing head is formed by bending the smooth elastic wire, the crushing head can generate elastic deformation according to the thickness of the blood vessel, and can not expand the thin blood vessel to further cause the blood vessel damage. The end part of the breaking head starts to rotate after being close to the thrombus, and the thrombus is broken gradually.
Further, the crushing head has an oblong closed ring structure, specifically, a structure in which a smooth curve is formed to detour from the front end to the rear end and to approximate an ellipse. Preferably, the oblong front end is a rounded tip and is located in the forward direction of the crushing head. The oblong structure has a length direction disposed along a length direction of the elongated portion. The long circle is beneficial to the elastic deformation of the crushing head according to the inner diameter of the blood vessel, and the front end of the crushing head gradually increases the contact area with thrombus along with the rotation, so that the thrombus is removed.
Further, the long round structure is formed by extending the extension part forwards and then bending the extension part backwards in a winding way. Specifically, the crushing head and the extension part are made of smooth elastic wires made of the same material.
Further, the two oblong structures are arranged, wherein one oblong structure is positioned inside the other oblong structure. Specifically, the front end of the first oblong structure abuts against the inner side of the front end of the second oblong structure, and the rear end of the second oblong structure is provided with an opening and extends out of a connecting part for connecting with the extension part. The first oblong structure can be formed by extending the extension part forwards and then bending the extension part backwards in a roundabout way, and can also be the same structure as the second oblong structure.
Further, the plane of the first oblong structure is perpendicular to the plane of the second oblong structure.
Further, the crushing head is connected to the first end of the extension by means of a connecting sleeve. Specifically, the connecting sleeve is sleeved on the connecting part and the first end of the extending part, so that the crushing head is fixedly connected with the extending part.
A thrombus crushing device comprises the thrombus crushing assembly, and the extension part is driven to rotate by a driving device.
Further, the device also comprises a conduit for guiding the crushing head to enter the blood vessel and a negative pressure suction device communicated with the conduit; the guide pipe is sleeved outside the extension part.
Further, the extension is rotatable and movable in the axial direction of the catheter.
Further, the negative pressure suction device is communicated with the catheter through a suction pipe.
The utility model has the advantages that: (1) the thrombus in the blood vessel is removed and broken by the broken head formed by the roundabout bending of the smooth elastic wire, and the broken head can generate elastic deformation according to the size of the inner diameter of the blood vessel and cannot damage the blood vessel. (2) The thrombus can be removed by rotating the long round structure crushing head, and the operation is easy. (3) The utility model provides a broken subassembly of thrombus can replace the broken subassembly among most thrombus breaker, and application scope is wide. (4) The utility model provides a thrombus breaker simple structure, low cost and easy operation.
Drawings
The invention will be further described with reference to the following figures and examples:
FIG. 1 is a schematic structural view of a thrombus-crushing assembly according to the present invention;
FIG. 2 is a structural diagram of the thrombus breaking assembly of the present invention;
FIG. 3 is a schematic diagram of the thrombus breaking device according to the present invention;
FIG. 4 is another structural diagram of the thrombus breaking device of the present invention;
FIG. 5 is a block diagram of the oblong shape of the thrombus breaking assembly of the present invention;
fig. 6 is another structural view of the oblong shape of the thrombus-breaking assembly of the present invention.
In the figure, 01 is a thrombus crushing component, 1-1 is an extension part, 1-2 is a crushing head, 1-21 is a first long circle, 1-22 is a second long circle, 1-23 is a long circle front end, 1-24 is a connecting part, 1-3 is a connecting sleeve, 02 is a suction tube, 03 is a control handle, 04 is a driving device, 05 is a catheter, 5-1 is an outlet end, 5-2 is a sealed tail end, 06 is a negative pressure suction device, 6-1 is a thrombus suction tube, 6-2 is a sealing plug, 6-3 is a negative pressure suction tube, 6-4 is a negative pressure suction buffer bottle, and 07 is an elastic connecting sleeve.
Detailed Description
The thrombus crushing assembly of the utility model, as shown in fig. 1 and 2, comprises an extension part 1-1 with a smooth elastic filament structure and a crushing head 1-2 formed by the round-trip bending of the smooth elastic filament, wherein the crushing head 1-2 is positioned at a first end of the extension part 1-1; when in use, the extension part 1-1 pushes the crushing head 1-2 to move along the blood vessel in the blood vessel and drives the crushing head 1-2 to rotate. Because the crushing head 1-2 is formed by bending smooth elastic wires, the crushing head 1-2 can generate elastic deformation according to the thickness of blood vessels, and the thinner blood vessels cannot be expanded, so that the blood vessels are not damaged. The end of the crushing head 1-2 starts to rotate after approaching the thrombus and gradually crushes the thrombus.
In this embodiment, the crushing head 1-2 is an oblong closed ring structure, specifically, an approximately elliptical structure in which a smooth curve is formed by winding from the front end to the rear. Preferably, the oblong front end 1-23 is a rounded tip and is located in the forward direction of the crushing head. The long circle is beneficial to the elastic deformation of the crushing head 1-2 according to the inner diameter of the blood vessel, and the contact area of the front end of the crushing head and thrombus is gradually increased along with the rotation. Specifically, after the crushing head 1-2 enters the blood vessel, the inner wall of the blood vessel is in contact with the middle section of the closed annular structure, and if the diameter of the inner wall of the blood vessel is smaller than the length of the short axis b, the inner wall of the blood vessel extrudes the middle of the long circular structure towards the middle, so that the long circular structure is easier to shorten along the direction of the short axis b and elongate along the direction of the long axis a.
In this embodiment, the crushing head and the extension are made of smooth elastic wires of the same material, and as shown in fig. 5, the oblong structure is formed by extending the extension forwards and then bending the extension backwards in a roundabout manner, and after bending in a roundabout manner, a connecting part 1-24 connected with the extension is extended. The structure is simple and easy to machine and form.
In this embodiment, there are two oblong structures, one of which is located inside the other. Specifically, the front end of the first long circle 1-21 abuts against the inner side of the front end of the second long circle 1-22, and the rear end of the second long circle 1-22 is provided with an opening and extends to form a connecting part 1-24 for connecting with the extension part, as shown in fig. 6. The first oblong 1-21 may be formed by extending an extension forward and then bending it backward, as shown in fig. 5, or may be formed by the same second oblong.
At the initial stage of thrombus breaking, the front ends of all long circular structures forming the breaking head 1-2 apply force to the same point of the thrombus and gradually break the thrombus without applying larger pressure through the extension part 1-1, so that the thrombus can be broken, and the increased pressure of the breaking head 1-2 on the inner wall of the blood vessel is further reduced. Preferably, the long shafts a of the long round structures forming the crushing heads 1-2 are all on the same axis, and in the process of crushing thrombus, the force application points are the same and the force application directions are consistent, so that the crushing efficiency can be accelerated.
When the crushing head is used specifically, the number of the long circular structures can be selected according to needs, for example, the hardness of the crushed thrombus is higher, the crushing head 1-2 can be composed of three or more long circular structures, and the inner side of the front end of the front long circular structure is abutted against the front end of the rear long circular structure, so that the strength of the front end of the crushing head is improved. Preferably, one of the oblong structures can be formed by extending the extension part forwards and then bending the extension part backwards in a roundabout way; or all the oblong structures adopt the same structure as the second oblong structure.
In this embodiment, the plane of the first oblong structure is perpendicular to the plane of the second oblong structure.
In this embodiment, the crushing head 1-2 is attached to the first end of the extension 1-1 by means of a connecting sleeve 1-3, which facilitates the attachment and mounting of the crushing head 1-2.
A thrombus breaking device comprises the thrombus breaking assembly 01, and the extension part 1-1 is driven to rotate by a driving device 04.
In the embodiment, the device also comprises a conduit 05 for guiding the crushing head 1-2 to enter a blood vessel and a negative pressure suction device 06 communicated with the conduit 05; the guide pipe 05 is sleeved outside the extension part 1-1. Extension 1-1 is rotatable and axially movable along catheter 05. The negative pressure suction device 06 is communicated with the conduit 05 through an extension pipe 08. As shown in fig. 3, the crushing head 1-2 extends from the outlet end 5-1 of the conduit 05, the second end of the extension 1-1 extends from the sealed rear end 5-2 of the conduit 05, and the extension 1-1 is rotatable and axially movable along the conduit 05. One ends of a thrombus suction tube 6-1 and a negative pressure suction tube 6-3 in the negative pressure suction device 06 are sealed in a negative pressure suction buffer bottle 6-4 through a sealing plug 6-2, and the other end of the thrombus suction tube 6-1 is communicated with a position of the catheter 05 close to the sealed tail end 5-2 through a suction tube 08. For the convenience of use and operation, one end of the suction tube 08 close to the thrombus suction tube 6-1 is also provided with a sealing knob.
When the crushing head is used clinically, the crushing head 1-2 is firstly penetrated from the sealed tail end 5-2 of the conduit 05 and then enters a blood vessel through the outlet end 5-1 detained in the blood vessel. The driving device 04 (in this embodiment, a motor) is connected to the second end of the extension part 1-1 through an elastic connecting sleeve 07, so that the crushing head 1-2 can be driven to rotate. After the thrombus is broken, the sealing knob is opened, the suction tube 08 is communicated with the thrombus suction tube 6-1, and thrombus fragments pass through the catheter 05 and the thrombus suction tube 6-1 in sequence and then enter the negative pressure suction buffer bottle 6-4 due to the lower pressure in the negative pressure suction buffer bottle 6-4, so that thrombus removal is completed. The utility model provides a pipe and suction tube can use the puncture sheath to replace, can assemble through current medical instrument, not only use cost is low, easy operation, and can avoid the blood vessel to receive the apparatus damage, and the practicality is high.
The utility model discloses another kind of structure of thrombus breaker, as shown in fig. 4, motor and vacuum device all set up in brake valve lever 03, and pipe 05 stretches out in brake valve lever 03's front end, and broken head 1-2 penetrates from brake valve lever 03's tail end, wears out from pipe 05 again. When the thrombus removing device is used clinically, the extension part 1-2 is pushed to enable the crushing head 1-1 to reach the thrombus, the motor in the control handle 03 is started to enable the extension part 1-1 to drive the crushing head 1-2 to rotate and remove the thrombus, and then the negative pressure device in the control handle 03 is started to enable the crushed thrombus to be sucked out of the body through the suction tube 02.
Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A thrombus breaking assembly, comprising: the crushing device comprises an extension part with a smooth elastic structure and a crushing head formed by roundly bending smooth elastic wires, wherein the crushing head is positioned at a first end of the extension part; when the crushing head is used, the extension part pushes the crushing head to move along a blood vessel in the blood vessel and drives the crushing head to rotate.
2. The thrombus-breaking assembly of claim 1, wherein: the crushing head is of an oblong closed ring structure.
3. The thrombus-breaking assembly of claim 2, wherein: the long circle is formed by extending the extension part forwards and then bending the extension part backwards in a roundabout way.
4. The thrombus-breaking assembly of claim 2, wherein: the two oblong circles are arranged, wherein the first oblong circle is positioned inside the second oblong circle.
5. The thrombus-fragmentation assembly of claim 4, wherein: the plane where the first long circle is located is perpendicular to the plane where the second long circle is located.
6. A thrombus-fragmentation assembly according to any one of claims 1 to 5, wherein: the crushing head is connected to the first end of the extension by a connecting sleeve.
7. A thrombus-breaking device comprising the thrombus-breaking assembly according to any one of claims 1 to 6, wherein: the extension is driven to rotate by a drive device.
8. The thrombus-breaking device according to claim 7, wherein: the device also comprises a conduit for guiding the crushing head to enter the blood vessel and a negative pressure suction device communicated with the conduit; the guide pipe is sleeved outside the extension part.
9. The thrombus-breaking device according to claim 8, wherein: the extension is rotatable and axially movable along the catheter.
10. The thrombus-breaking device according to claim 8, wherein: the negative pressure suction device is communicated with the catheter through a suction pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120887749.8U CN217447931U (en) | 2021-04-28 | 2021-04-28 | Thrombus crushing assembly and thrombus crushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120887749.8U CN217447931U (en) | 2021-04-28 | 2021-04-28 | Thrombus crushing assembly and thrombus crushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217447931U true CN217447931U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120887749.8U Active CN217447931U (en) | 2021-04-28 | 2021-04-28 | Thrombus crushing assembly and thrombus crushing device |
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| Country | Link |
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| CN (1) | CN217447931U (en) |
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- 2021-04-28 CN CN202120887749.8U patent/CN217447931U/en active Active
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Effective date of registration: 20240208 Address after: 523808 Room 301, building 15, No. 1, Gongye Beisi Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee after: Guangdong Bomai Medical Technology Co.,Ltd. Country or region after: China Address before: Friendship road 400016 Chongqing city Yuzhong District Yuanjiagang No. 1 Patentee before: THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL University Country or region before: China |