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CN-121987293-A - Thrombus suction device

CN121987293ACN 121987293 ACN121987293 ACN 121987293ACN-121987293-A

Abstract

The invention belongs to the technical field of medical auxiliary equipment, and provides a thrombus suction device. The invention comprises a drainage set and a suction main body, wherein the drainage set comprises a drainage guide tube, a support side tube and a negative pressure suction piece, the distal end of the drainage guide tube is provided with an abutting notch groove, the support side tube is fixedly arranged on one side of the drainage guide tube and is close to the position of a distal end tube head, the support side tube is arranged on the other side of the drainage guide tube, which is opposite to the abutting notch groove, the negative pressure suction piece is arranged at the proximal end of the drainage guide tube, the suction main body is arranged in the drainage set and is positioned in the drainage guide tube, and the suction main body comprises an installation sleeve, a drawing assembly and a miniature linear motor. The invention adopts the drainage main sleeve with a double-cavity structure, wherein the drainage guide tube is used as a traditional thrombus treatment cleaning tube cavity, and the support side tube at the other side is used as a support design for expanding the vessel wall cavity, so that the operation space is increased in the thrombus treatment suction process.

Inventors

  • TANG LI

Assignees

  • 中国人民解放军陆军军医大学第一附属医院

Dates

Publication Date
20260508
Application Date
20260318

Claims (7)

  1. 1. A thrombus aspiration device, comprising: The drainage set comprises a drainage guide tube, a support side tube and a negative pressure suction piece, wherein an abutting notch groove is formed in the distal end of the drainage guide tube, the support side tube is fixedly arranged on one side of the drainage guide tube and close to the position of a distal tube head, the support side tube is arranged on the other side of the drainage guide tube, which is opposite to the abutting notch groove, the negative pressure suction piece is arranged at the proximal end of the drainage guide tube, and the negative pressure suction piece is arranged on the outer side of the drainage guide tube The suction body is arranged in the drainage guide tube and comprises a mounting sleeve, a drawing component and a miniature linear motor, wherein the miniature linear motor is arranged in the mounting sleeve, a rotating shaft of the miniature linear motor extends outwards, and the mounting sleeve is arranged on one side of the inner wall of the drainage guide tube and is close to the direction of the abutting notch groove; wherein the abutting notch is abutted against the thrombus, the suction body is in contact with the thrombus, and pulverizes the thrombus and discharges the thrombus through the negative pressure suction member.
  2. 2. A thrombus aspiration device as in claim 1 wherein said support side tube is made of metal elastic mesh.
  3. 3. The thrombus aspiration device of claim 1, wherein the pulling assembly comprises a spline shaft, a spline housing and a fixed plate, the fixed plate is fixedly connected with the inner wall of the mounting housing; The rotor of the miniature linear motor is rotationally connected with one end of the spline shaft, and the shaft body of the spline shaft penetrates through the spline sleeve.
  4. 4. A thrombus aspiration device as in claim 3 wherein said aspiration body comprises a thrombus retractor having one end fixedly connected to the other end of said spline shaft and two opposite sides and having different lengths.
  5. 5. A thrombus aspiration device as in claim 3 wherein said aspiration body further comprises a rotational coupling comprising a fixed disk and a rotatable disk, one side of said rotatable disk being rotatably mounted within said fixed disk, said fixed disk being fixedly connected to said mover of said miniature linear motor, the other side of said rotatable disk being fixedly connected to one end of said spline shaft.
  6. 6. The thrombus aspiration device of claim 1, wherein the aspiration body further comprises a moving guide support sleeve disposed within the drainage guide tube and abutting against the inner wall of the drainage guide tube, wherein the moving guide support sleeve is disposed adjacent the abutting notch and in the opposite direction to the mounting sleeve, and wherein the moving guide support sleeve is made of metal elastic mesh.
  7. 7. The aspiration device of claim 1, wherein the negative pressure suction member comprises a suction pump and a drainage bag, wherein an inlet end of the suction pump is in communication with a proximal end of the drainage guide tube, and an outlet end of the suction pump is in communication with the drainage bag.

Description

Thrombus suction device Technical Field The invention relates to the technical field of medical auxiliary equipment, in particular to a thrombus suction device. Background Thrombus aspiration is a critical interventional technique for treating intravascular thrombotic lesions, with negative pressure aspiration through the catheter to restore blood flow. At present, single-cavity catheters are adopted as main clinical equipment, and when thrombus completely or secondarily completely blocks blood vessels, the operation space is extremely narrow. In the limited space, the catheter or the devices carried by the catheter (such as a guide wire, a rotary grinding device and the like) are easy to scrape and collide with the blood vessel intima, meanwhile, thrombus fragments moving at high speed in the sucking process can also impact the blood vessel wall, the mechanical damage is easy to cause the damage and perforation of the blood vessel intima, and serious complications such as hemorrhage, blood vessel interlayer and the like during and after the operation are caused, so that the safety of patients is endangered. The existing improvement is mainly focused on the local optimization of the shape, the material and the like of the head end of the catheter, and the damage can be reduced to a certain extent, but the operation environment of direct interaction of an instrument, thrombus and a blood vessel wall in a narrow space cannot be fundamentally changed, and the operation risk is still obvious. Therefore, we propose a novel device which can fundamentally expand the operation space and effectively isolate the vessel wall so as to avoid the risk of massive hemorrhage caused by the contact of the devices or the impact of fragments in the thrombus treatment process. Disclosure of Invention Aiming at the defects in the prior art, the invention provides a thrombus suction device which is used for enlarging the operation space and avoiding the risk of massive hemorrhage caused by instrument contact or fragment impact in the thrombus treatment process. The invention provides a thrombus sucking device, comprising: The drainage set comprises a drainage guide tube, a support side tube and a negative pressure suction piece, wherein an abutting notch groove is formed in the distal end of the drainage guide tube, the support side tube is fixedly arranged on one side of the drainage guide tube and close to the position of a distal tube head, the support side tube is arranged on the other side of the drainage guide tube, which is opposite to the abutting notch groove, the negative pressure suction piece is arranged at the proximal end of the drainage guide tube, and the negative pressure suction piece is arranged on the outer side of the drainage guide tube The suction device comprises a drainage guide tube, a suction main body, a suction assembly and a negative pressure suction piece, wherein the suction main body is arranged in the drainage guide tube and is positioned in the drainage guide tube, the suction main body comprises a mounting sleeve, a suction assembly and a miniature linear motor, the miniature linear motor is arranged in the mounting sleeve, a rotating shaft of the miniature linear motor extends outwards, the mounting sleeve is arranged on one side of the inner wall of the drainage guide tube and is close to the direction of a butt notch groove, the suction assembly is arranged on the rotating shaft of the miniature linear motor, the butt notch groove is in butt joint with thrombus, the suction main body is in contact with the thrombus, the thrombus is crushed, and the thrombus is discharged through the negative pressure suction piece. Further, the supporting side pipe is made of metal elastic net. In practical application, the purpose of this design just is convenient support for supporting effect, can regulate and control, and then realized further promotion operating space. Further, the drawing assembly comprises a spline shaft, a spline sleeve and a fixed plate, wherein the fixed plate is fixedly connected with the inner wall of the installation sleeve, the spline sleeve is rotatably installed on the fixed plate, a rotor of the miniature linear motor is rotatably connected with one end of the spline shaft, and a rod body of the spline shaft penetrates through the spline sleeve. Further, the suction main body comprises a thrombus draw hook, one end of the thrombus draw hook is fixedly connected with the other end of the spline shaft, and the thrombus draw hook is provided with two opposite and different lengths. In practical application, the thrombus retractor has the advantages that the thrombus retractor can realize linear reciprocating motion and rotary motion, further realize puncture and drawing of thrombus, and tear and break of thrombus can be effectively realized through repeated operation, and further cleaning is realized. Further, the suction main body further comprises a rotary coupler, the rotary