CN217447944U - Novel thrombus remover - Google Patents
Novel thrombus remover Download PDFInfo
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- CN217447944U CN217447944U CN202122988790.7U CN202122988790U CN217447944U CN 217447944 U CN217447944 U CN 217447944U CN 202122988790 U CN202122988790 U CN 202122988790U CN 217447944 U CN217447944 U CN 217447944U
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- cylinder
- guide wire
- rotating
- driving cylinder
- thrombus
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 56
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 230000002792 vascular Effects 0.000 abstract description 4
- 239000002516 radical scavenger Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 2
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- 210000000056 organ Anatomy 0.000 description 2
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- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
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- 206010047141 Vasodilatation Diseases 0.000 description 1
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- 229940127219 anticoagulant drug Drugs 0.000 description 1
- 229940127218 antiplatelet drug Drugs 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
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Abstract
The utility model belongs to the field of medical equipment, it is a novel thrombus scavenger, and it includes: a guide catheter which can be placed in the blood vessel of a patient and a hollow guide wire which is sleeved in the guide catheter; the hollow guide wire can slide in the guide catheter, and a rotatable conical cutter head is arranged at the front end of the hollow guide wire; the hollow guide wire is provided with a cutter component which moves along the axial direction of the hollow guide wire and can carry out rotary cutting on thrombus on a vessel wall; the utility model is suitable for the removal of aortic thrombus, and the thrombus removal work can be quickly carried out only by placing the guide catheter during the operation; the utility model discloses the whole clear away of thrombus can be realized to cutter unit spare, the toper tool bit that well contained, avoids the vascular wall to leave over and remains the thrombus.
Description
Technical Field
The utility model belongs to the field of medical equipment, concretely relates to is a novel thrombus scavenger.
Background
Thrombosis is a common disease in clinic, and is a small lump formed on the surface of a blood flow stripped or repaired part in the blood vessel of a cardiovascular system. In the variable fluid-dependent type, the thrombus is composed of insoluble fibrin, deposited platelets, accumulated white blood cells and entrapped red blood cells. Generally, the thrombus harm has the following main points: 1. thrombus blocks the vessel lumen, causing the blockage of distal blood reflux, and causing the symptoms of obvious swelling, severe pain, superficial skin vasodilatation and the like of distal limbs. 2. The thrombus can be fallen off along with the blood flow to cause the blockage of blood vessel, and more serious complication such as pulmonary embolism, cerebral embolism and myocardial infarction, etc. the larger embolus can completely block the blood supply vessel of important organ, and can cause organ ischemia, hypoxia and even death of patient. The existing methods for removing thrombus in blood vessels are more, and can be divided into medicament treatment and operation treatment according to different treatment modes. The drug therapy can be selected from thrombolytic drug, anticoagulant drug and platelet aggregation inhibitor. The operation treatment also comprises the traditional operation incision and thrombus removal treatment and the minimally invasive operation treatment, and the minimally invasive operation treatment comprises intravascular thrombolysis, intravascular thrombus suction and the like.
The existing thrombus remover in the vascular cavity thrombus suction operation in the aorta blood vessel has a plurality of defects, for example, the existing thrombus removing equipment can generate 30-50% of residues when thrombus is removed, and countless fragments of the existing equipment can be left in the blood vessel when a catheter enters a blood clot, so that the blood flowing speed is reduced, and tissue necrosis is caused. Therefore, there is a need for a thrombus removal assembly that can completely remove thrombus from a large blood vessel, such as a femoral artery.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem of remaining in the current thrombus removal art, the utility model provides a novel thrombus remover.
A novel thrombus remover, comprising: a guide catheter which can be placed in the blood vessel of a patient and a hollow guide wire which is sleeved in the guide catheter; the hollow guide wire can slide in the guide catheter, and a rotatable conical cutter head is arranged at the front end of the hollow guide wire; the hollow guide wire is provided with a cutter component which moves along the axial direction of the hollow guide wire and can carry out rotary cutting on thrombus on a vessel wall.
Preferably, the cutter assembly comprises: a rotary cutter cylinder for rotary cutting thrombus on the vascular wall and a driving cylinder for driving the rotary cutter cylinder to advance; a rolling mechanism for rotating the rotary cutter cylinder is correspondingly arranged between the rotary cutter cylinder and the driving cylinder; the driving cylinder drives the rotary cutter cylinder to move along the hollow guide wire.
Preferably, the inner surface and the outer surface of the driving cylinder are both provided with thread grooves arranged around the axis of the driving cylinder, and the surface of the hollow guide wire is provided with threads meshed with the thread grooves; two through holes for communicating the thread grooves on the inner surface and the outer surface of the driving cylinder are respectively arranged along the two sides of the driving cylinder; and a plurality of balls capable of rolling simultaneously along the same direction are uniformly arranged in the thread groove.
Preferably, in order to realize that a plurality of balls roll in the thread groove along one direction simultaneously; a rotatable coating cylinder which coats the driving cylinder is arranged on the outer surface of the driving cylinder; the movement of the balls in the thread groove on the outer surface of the driving cylinder is realized by utilizing the rotation of the cladding cylinder, so that the balls in the thread groove on the inner surface of the driving cylinder move.
Preferably, a coating cylinder which can coat the driving cylinder and can rotate is arranged on the outer surface of the driving cylinder; two sides of the driving cylinder are provided with annular baffles, and the annular baffles at the two sides are provided with belt mechanisms for the rotating stroke of the wrapping cylinder; the belt mechanism comprises a rotatable rotating shaft arranged on the annular baffles on the two sides and a belt sequentially wrapping the rotating shaft and the wrapping cylinder.
Preferably, a plurality of double-link mechanisms are uniformly arranged on the surface of the rotary cutter cylinder around the axis of the rotary cutter cylinder; the double-connecting-rod mechanism is formed by hinging two rod bodies with vertexes, the lower end of one rod body is provided with a sliding block hinged with the rod body, and the lower end of the other rod body is hinged with the surface of the rotary cutter cylinder; the sliding block can move on the surface of the rotary cutter barrel along the axial direction of the rotary cutter barrel; one side of the sliding block is provided with a push rod for sliding movement.
Preferably, the other rod body is provided with a spiral blade with a radian at the vertex; and a groove for the sliding block to move is formed in the surface of the rotary cutter cylinder.
Preferably, a rotating ring which can rotate around the axis of the driving cylinder is arranged on one side of the driving cylinder, and the push rod is connected with the rotating ring; a groove engaged and clamped with the rotating ring is arranged on one side of the rotary cutter cylinder; the rolling mechanism is a rotatable rotating shaft arranged on one side of the driving cylinder; a mesh tooth for rotating the rotating ring is correspondingly arranged between the rotating shaft and the rotating ring.
Preferably, the conical cutter head is rotatably connected with the hollow guide wire, and a rotating shaft for rotating the conical cutter head is arranged at the connection part of the hollow guide wire and the conical cutter head.
Preferably, in order to realize the rotation of the rotating shaft; one end of the rotating shaft is connected with a rotatable threaded conveying ring, and a through hole for recovering thrombus is arranged on the hollow guide wire.
Preferably, the guide catheter is provided with a through hole for a doctor to push the hollow guide wire; the length of the hollow guidewire is greater than the length of the guide catheter; the rear end of the guide catheter and the rear end of the hollow guide wire are both communicated in a negative pressure handle.
Preferably, a plurality of rotating motors for rotating the thread conveying ring are arranged in the negative pressure handle, and a sliding rail for displacing the rotating motors is arranged in the negative pressure handle; a spring for returning the rotating motors to the initial positions is arranged between the sliding rail and the negative pressure handle, and each rotating motor is in electric signal transmission with the control panel; the negative pressure handle is internally provided with battery components for supplying power to each rotating motor.
Compared with the prior art, the technical scheme of the utility model following beneficial effect has:
the utility model is suitable for the removal of aortic thrombus, and the thrombus removal work can be quickly carried out only by placing the guide catheter during the operation; the utility model discloses the whole clear away of thrombus can be realized to cutter unit spare, the toper tool bit that contains, leaves over on avoiding the vascular wall and remains the thrombus.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the guide wire of the present invention;
FIG. 3 is a schematic view of the internal structure of the driving cylinder of the present invention;
FIG. 4 is a schematic view of the overall structure of the driving cylinder of the present invention;
fig. 5 is a schematic structural view of the rotary cutter cylinder of the present invention;
FIG. 6 is a schematic cross-sectional view of the cutting tool assembly of the present invention;
fig. 7 is a schematic structural view of the front end of the guide wire according to the present invention;
FIG. 8 is a schematic view of the internal structure of the negative pressure handle of the present invention;
in the figure, 1, a negative pressure handle; 2. a cutter assembly; 3. a hollow guide wire; 4. a guide catheter; 5. A conical cutter head; 201. a drive cylinder; 202. a rotary cutter drum; 301. a thread; 20101. annular baffles at two sides of the driving cylinder; 20102. a threaded groove; 203. a ball bearing; 204. a wrapping drum; 205. a rotating shaft; 206. an annular projection; 20201. a short bar; 20202. a slider; 20203. a push rod; 20204. a helical blade; 6. a threaded conveying ring; 20205. a groove engaged and clamped with the rotating ring; 207. a rotating ring; 302. a through hole for recovering thrombus; 101. a rotating electric machine; 102. A spring; 103. a battery pack is provided.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In the specific implementation process, as shown in fig. 1 and fig. 2, a novel thrombus remover comprises: a guide catheter 4 which can be placed in the blood vessel of a patient, and a hollow guide wire 3 which is sleeved in the guide catheter 4; the hollow guide wire 3 can slide in the guide catheter 4, and the front end of the hollow guide wire 3 is provided with a rotatable conical cutter head 5; the hollow guide wire 3 is provided with a cutter component 2 which moves along the axial direction of the hollow guide wire 3 and can carry out rotary cutting on thrombus on a vessel wall.
It should be noted that: when in use, the guiding catheter 4 is placed into the blood vessel along one side of the thrombus in advance, and then the hollow guide wire 3 is placed into the guiding catheter 4; the hollow guide wire 3 is guided to the other side of the thrombus by a conical cutter head 5 at the front end of the hollow guide wire 3; the cutter component 2 is disconnected from the front end of the guide catheter 4, and stubborn thrombus on the vessel wall is removed along the hollow guide wire 3; after removal, the hollow guidewire 3 is withdrawn.
As shown with reference to FIG. 2; the cutter assembly 2 includes: a rotary cutter cylinder 202 for rotary cutting thrombus on the vessel wall, and a driving cylinder 201 for driving the rotary cutter cylinder 202 to advance; a rolling mechanism for rotating the rotary cutter cylinder 202 is correspondingly arranged between the rotary cutter cylinder 202 and the driving cylinder 201; the driving cylinder 201 drives the rotary cutter cylinder 202 to move along the hollow guide wire 3.
It should be noted that: the inner wall of the rotary cutter cylinder 202 is a smooth surface; when the rotary cutting tool is used, the driving cylinder 201 is used for moving the rotary cutting tool cylinder 202 on the guide wire, and the rolling mechanism arranged between the rotary cutting tool cylinder 202 and the driving cylinder 201 can avoid the movement interference between the rotary cutting tool cylinder 202 and the driving cylinder 201, so that the rotary cutting tool cylinder 202 can rotate at any speed.
Refer to fig. 3, fig. 4; the inner surface and the outer surface of the driving cylinder 201 are both provided with a thread groove 20102 arranged around the axis of the driving cylinder 201, and the surface of the hollow guide wire 3 is provided with a thread 301 engaged with the thread groove 20102; two through holes for communicating the threaded grooves 20102 on the inner surface and the outer surface of the driving cylinder 201 are respectively arranged along the two sides of the driving cylinder 201; a plurality of balls 203 which can roll simultaneously along the same direction are uniformly arranged in the thread groove 20102; a rotatable coating cylinder which coats the driving cylinder 201 is arranged on the outer surface of the driving cylinder 201; two sides of the driving cylinder 201 are provided with annular baffles, and the annular baffles at the two sides are provided with belt mechanisms for the rotating stroke of the wrapping cylinder 204; the belt mechanism comprises a rotatable rotating shaft 205 arranged on the annular baffles at two sides and a belt which sequentially wraps the rotating shaft 205 and the wrapping cylinder 204.
It should be noted that: when in use, the rotatable wrapping cylinder 204 wrapped on the outer surface of the driving cylinder 201 enables the plurality of balls 203 on the inner surface and the outer surface of the driving cylinder 201 to move along the threaded groove 20102; and a plurality of movable balls 203 on the inner surface of the driving barrel 201 are engaged with the threads 301 on the surface of the guide wire to form an engagement transmission process, so that the driving barrel 201 moves along the guide wire.
As shown with reference to FIG. 5; a plurality of double-link mechanisms are uniformly arranged on the surface of the rotary cutter cylinder 202 around the axis of the rotary cutter cylinder 202; the double-connecting-rod mechanism is two rod bodies hinged at the vertexes, the lower end of one rod body is provided with a sliding block 20202 hinged with the lower end of the other rod body, and the lower end of the other rod body is hinged with the surface of the rotary cutter cylinder 202; the slide block 20202 can move on the surface of the rotary cutter cylinder 202 along the axial direction of the rotary cutter cylinder 202; a push rod 20203 for sliding movement is arranged on one side of the slide block 20202; wherein the other rod body is provided with a helical blade 20204 with a radian at the vertex; the surface of the rotary cutter cylinder 202 is provided with a groove for the slider 20202 to move.
It should be noted that: after the rotary-cut knife cylinder 202 reaches one side of the thrombus, the push rod 20203 pushes the slider 20202 to move, so that the connection point between the two rod bodies is arched, and after the connection point between the two rod bodies contacts with the wall of the blood vessel, the rotary-cut knife cylinder 202 rotates to cut the stubborn thrombus on the wall of the blood vessel; the helical blade 20204 prevents the rotary cutter drum 202202 from damaging the vessel wall during rotation.
Refer to fig. 5, 6, 7;
a rotating ring 207 which can rotate around the axis of the driving cylinder 201 is arranged on one side of the driving cylinder 201, and the push rod 20203 is connected with the rotating ring 207; a groove 20205 engaged with the rotating ring 207 is arranged on one side of the rotary cutter cylinder 202; the rolling mechanism is a rotatable rotating shaft 205 arranged on one side of the driving cylinder 201; a tooth for rotating the rotating ring 207 is correspondingly arranged between the rotating shaft 205 and the rotating ring 207.
It should be noted that: an annular bulge 206 for rotating the rotating ring 207 is arranged on one side of the driving cylinder 201, and the rotating shaft 205 can be rotated to enable the rotating ring 207 to rotate around the axis of the driving cylinder 201; when the driving cylinder 201 and the rotary cutter cylinder 202 are both located at the initial position of the guide wire, the driving cylinder 201 moves, and the rotary cutter cylinder 202 does not rotate; when the driving cylinder 201 moves to the position where the rotating ring 207 on the surface of the driving cylinder 201 is clamped with the groove on the surface of the rotary cutter cylinder 202, the two rod bodies on the surface of the rotary cutter guide cylinder are arched, and the rotating ring 207 drives the rotary cutter guide cylinder to rotate.
As shown with reference to FIG. 8; the conical cutter head 5 is rotatably connected with the hollow guide wire 3, and a rotating shaft 205 for rotating the conical cutter head 5 is arranged at the joint of the hollow guide wire 3 and the conical cutter head 5.
It should be noted that: when in use, the hollow guide wire 3 passes through thrombus by utilizing the rotation of the conical cutter head 5.
As shown with reference to FIG. 2; one end of the rotating shaft 205 is connected with a rotatable thread conveying ring 6, and a through hole 302 for recovering thrombus is arranged on the hollow guide wire 3.
It is to be noted that; the hollow guide wire 3 and the guide catheter 4 are uniformly provided with clamps for preventing the thread conveying ring 6 from shaking, and the thread conveying ring 6 can realize the rotation of the rotating shaft 205.
Referring to fig. 1 and 8, the guiding catheter 4 is provided with a through hole for the physician to push the hollow guide wire 3; the length of the hollow guide wire 3 is greater than that of the guide catheter 4; the rear end of the guide catheter 4 and the rear end of the hollow guide wire 3 are both communicated in a negative pressure handle 1; a plurality of rotating motors 101 for rotating the thread conveying ring 6 are arranged in the negative pressure handle 1, and a sliding rail for displacing the rotating motors 101 is arranged in the negative pressure handle 1; a spring 102 for returning the rotating motors 101 to the initial positions is arranged between the sliding rail and the negative pressure handle 1, and each rotating motor 101 is in electric signal transmission with the control panel; a battery pack 103 for supplying power to each rotating electric machine 101 is provided in the negative pressure handle 1.
It is to be noted that; when the rotary cutting tool is used, the rotary motor 101 can enable the thread conveying ring 6 to start to rotate, the sliding rail at the lower end of the rotary motor 101 can provide the movement stroke of the thread conveying ring 6 in the guide conduit 4, and the spring 102 can enable the rotary motor 101 and the thread conveying ring 6 to return to the initial position after the rotary cutting tool cylinder 202 finishes working; after the guide catheter 4 is inserted into the blood vessel, the doctor operates the control panel to start the rotating motors 101, thereby operating the mechanisms.
The utility model discloses circuit and control that relate to are prior art, do not carry out too much repetition here.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (9)
1. A novel thrombus remover, comprising: a guide catheter which can be placed in the blood vessel of a patient and a hollow guide wire which is sleeved in the guide catheter; the hollow guide wire can slide in the guide catheter, and a rotatable conical cutter head is arranged at the front end of the hollow guide wire; the hollow guide wire is provided with a cutter component which moves along the axial direction of the hollow guide wire and can carry out rotary cutting on thrombus on a vessel wall.
2. The new thrombus remover according to claim 1, wherein the cutter assembly comprises: a rotary cutter cylinder for rotary cutting thrombus on the vessel wall and a driving cylinder for driving the rotary cutter cylinder to advance; a rolling mechanism for rotating the rotary cutter cylinder is correspondingly arranged between the rotary cutter cylinder and the driving cylinder; the driving cylinder drives the rotary cutter cylinder to move along the hollow guide wire.
3. The novel thrombus remover according to claim 2, wherein the inner and outer surfaces of the driving cylinder are provided with thread grooves around the axis of the driving cylinder, and the surface of the hollow guide wire is provided with threads engaged with the thread grooves; two through holes for communicating the thread grooves on the inner surface and the outer surface of the driving cylinder are respectively arranged along the two sides of the driving cylinder; and a plurality of balls capable of rolling simultaneously along the same direction are uniformly arranged in the thread groove.
4. The novel thrombus remover according to claim 3, wherein a coating cylinder which can be rotated and coated on the driving cylinder is arranged on the outer surface of the driving cylinder; the movement of the balls in the thread groove on the outer surface of the driving cylinder is realized by utilizing the rotation of the cladding cylinder, so that the balls in the thread groove on the inner surface of the driving cylinder move.
5. The novel thrombus remover according to claim 2, wherein a plurality of double-link mechanisms are uniformly arranged on the surface of the rotary cutter cylinder around the axis of the rotary cutter cylinder; the double-connecting-rod mechanism is formed by hinging two rod bodies with vertexes, the lower end of one rod body is provided with a sliding block hinged with the rod body, and the lower end of the other rod body is hinged with the surface of the rotary cutter cylinder; the sliding block can move on the surface of the rotary cutter barrel along the axial direction of the rotary cutter barrel; one side of the sliding block is provided with a push rod for sliding movement.
6. The novel thrombus remover according to claim 5, wherein a rotating ring capable of rotating around the axis of the driving cylinder is arranged at one side of the driving cylinder, and the push rod is connected with the rotating ring; a groove engaged and clamped with the rotating ring is arranged on one side of the rotary cutter cylinder; the rolling mechanism is a rotatable rotating shaft arranged on one side of the driving cylinder; a mesh tooth for rotating the rotating ring is correspondingly arranged between the rotating shaft and the rotating ring.
7. The thrombus remover according to claim 1, wherein the conical cutter head is rotatably connected with the hollow guide wire, and a rotating shaft for rotating the conical cutter head is arranged at the connection part of the hollow guide wire and the conical cutter head.
8. The novel thrombus remover according to claim 7, wherein one end of the rotating shaft is connected with a rotatable screw thread conveying ring, and a plurality of screw thread conveying rings are respectively communicated with a negative pressure handle through a guide catheter and a guide wire.
9. The novel thrombus remover according to claim 8, wherein a plurality of rotating motors for rotating the screw thread conveying ring are arranged in the negative pressure handle, and a slide rail for displacing the rotating motors is arranged in the negative pressure handle; a spring for returning the rotating motors to the initial positions is arranged between the sliding rail and the negative pressure handle, and each rotating motor is in electric signal transmission with the control panel; a battery component for supplying power to each rotating motor is arranged in the negative pressure handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122988790.7U CN217447944U (en) | 2021-12-01 | 2021-12-01 | Novel thrombus remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122988790.7U CN217447944U (en) | 2021-12-01 | 2021-12-01 | Novel thrombus remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217447944U true CN217447944U (en) | 2022-09-20 |
Family
ID=83234333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122988790.7U Active CN217447944U (en) | 2021-12-01 | 2021-12-01 | Novel thrombus remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217447944U (en) |
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2021
- 2021-12-01 CN CN202122988790.7U patent/CN217447944U/en active Active
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