CN-116079261-B - Spindle-shaped balloon full-automatic array laser perforation device and method

CN116079261BCN 116079261 BCN116079261 BCN 116079261BCN-116079261-B

Abstract

The invention discloses a full-automatic array laser perforation device and method for spindle-shaped balloons, belongs to the technical field of preparation of drug delivery devices, and solves the problems that in the prior art, perforation efficiency is low, perforation quality is low due to the fact that the spindle-shaped balloons are not suitable for perforation, and the method comprises a conveying plate driven by a stepping motor, rotating motors are oppositely arranged at two ends of the surface of the conveying plate, circular rings are sleeved at the ends of the rotating motors, a spindle-shaped balloon is arranged between the two circular rings, a laser is arranged above the conveying plate, and a CCD camera is sleeved at the end of the laser and then connected with a vibrating mirror. According to the invention, the rotary motor is arranged on the conveying plate, the rotary motor is used for driving the spindle-shaped sacculus to rotate at intervals, so that the punching efficiency of the spindle-shaped sacculus is improved, and the space positions of the CCD camera focus and the galvanometer focus are matched with the rotary motor, so that the spindle-shaped sacculus can still punch holes with the same size after rotating at different angles, and the punching quality of the spindle-shaped sacculus is improved.

Inventors

SHAN XIAONAN
QIN BO
YE SHUJUAN
FU FANGFANG

Assignees

扬州扬芯激光技术有限公司

Dates

Publication Date: 20260505
Application Date: 20230306

Claims (7)

1. The full-automatic array laser perforation method of the spindle-shaped saccule adopts a full-automatic array laser perforation device of the spindle-shaped saccule, the device comprises a conveying plate driven by a stepping motor, rotating motors are oppositely arranged at two ends of the surface of the conveying plate, a circular ring is sleeved at the end part of each rotating motor, and a laser is arranged above the conveying plate, and the full-automatic array laser perforation method is characterized by comprising the following steps: S1, inflating and expanding a spindle-shaped balloon to be perforated, penetrating the spindle-shaped balloon into rotating motors at two ends, and enabling air pipes at two ends of the spindle-shaped balloon to be firmly fixed in a circular ring; s2, keeping the position of the CCD camera unchanged, starting a stepping motor to drive a conveying plate to move, enabling the spindle-shaped balloon to move to the lower part of the CCD camera, and enabling the CCD camera to identify the lowest point of machining of the spindle-shaped balloon and constructing three-dimensional coordinate space zero points (0, 0 and 0) at the position; S3, adjusting the position of a CCD camera, focusing the focus of the CCD camera on the highest point of symmetry of the lowest point of the spindle-shaped balloon, constructing a three-dimensional coordinate space zero point (X1, Y1, Z1) at the position, and marking the maximum circumferential diameter S1 of the spindle-shaped balloon by the ascending height h1 of the CCD camera which is equal to the diameter D1 of the spindle-shaped balloon; S4, according to the space relative relation between the laser processing focus and the CCD camera focus, moving the distance of the stepping motor and the height of the lifting vibrating mirror, and calculating the three-dimensional coordinates (x 1, y1, z 1) of the laser focus by the control system; S5, calculating the machining circumference S1 according to the D1, and obtaining the time T1 of one circle of rotation by using the rotation speed of the motor; S6, obtaining the number N1 of perforation according to the interval requirement and the circumference S1 of perforation on the circumference, and obtaining the interval time T1 between laser light emission by combining T1; S7, the control system records the laser perforation times N1, the interval time t1 and the power W, the rotation of the rotating motor and the synchronous start and end of the laser light emission, the laser automatically completes the perforation on the circumference, after the perforation is completed, the control system controls the stepping motor to drive the spindle-shaped saccule to return to the original position (0, 0), and the CCD camera refocuses at the highest point (X1, Y1, Z1); S8, the control system controls the stepping motor to drive the spindle-shaped saccule to move to the next perforation position, the CCD camera automatically recognizes the highest point (X2, Y2, Z2) at the position, and the three-dimensional coordinates (X2, Y2, Z2) of the laser focus at the position are calculated according to the difference value of the space coordinate points; S9, according to the space axisymmetric relation, the control system automatically converts the circumferential radius D2 of the balloon at the position, calculates the circumference S2 of the processing circumference at the position according to the D2, combines the rotation speed of the rotating motor to obtain the time T2 of one circle of rotation at the position, repeats the steps S6 and S7 to obtain the perforation times N2, obtains the interval time T2 of laser light emission according to the T2, and controls the stepping motor to drive the balloon to return to the original position (0, 0) after perforation processing is completed, and the CCD camera refocuses at the highest point (X1, Y1, Z1); S10, the control system controls the CCD camera to move to the third perforation position, and the above actions are repeated until perforation of all the specified positions is completed.
2. The full-automatic array laser perforation method of the spindle-shaped balloon according to claim 1, wherein air pipes at two ends of the spindle-shaped balloon in the step S1 are communicated with an inflation device, and air is injected into the spindle-shaped balloon through the inflation device and the air pipes, so that the spindle-shaped balloon is kept inflated in the perforation process.
3. The method for full-automatic array laser perforation of spindle-shaped balloons according to claim 1, wherein the laser in step S7, step S9 and step S10 perforates the inflated spindle-shaped balloons with ultraviolet laser.
4. The full-automatic array laser perforation method of the spindle-shaped balloon according to claim 1, wherein the stepping motor is electrically connected with the control unit, the spindle-shaped balloon is arranged between the two circular rings, air pipes at two ends of the spindle-shaped balloon respectively penetrate through the circular rings tightly and then extend out of the rotating motor, one end of each air pipe is connected with the inflating unit, the end part of the laser is sleeved with the CCD camera and then connected with the vibrating mirror, the relative positions of the focal point of the CCD camera and the laser focal point of the vibrating mirror are kept unchanged, and the vibrating mirror is opposite to the conveying plate below.
5. The method for full-automatic array laser perforation of spindle-shaped balloons of claim 1, wherein said CCD camera is fixedly arranged above said conveying plate.
6. The method of claim 1, wherein the rotating motor is provided with a reinforcing component for reinforcing the connection tightness of the circular ring and the air pipe at the end part, the reinforcing component comprises a fixed seat, the upper part of the fixed seat is provided with telescopic rods driven by micro air cylinders in a penetrating way, two sides of the bottom of each telescopic rod are provided with pushing rods in opposite directions, the tail parts of the pushing rods are provided with driving rods, and the tail parts of the two driving rods are respectively provided with pressing pads which are abutted against the left end and the right end of the circular ring after the two driving rods are arranged in a crossing way.
7. The method for full-automatic array laser perforation of spindle-shaped balloons of claim 6, wherein a rubber pad is arranged on the inner wall of the pressing pad.

Description

Spindle-shaped balloon full-automatic array laser perforation device and method Technical Field The invention belongs to the technical field of preparation of drug delivery devices, and particularly relates to a spindle-shaped balloon full-automatic array laser perforation device and method. Background The clinical application of PTCA products is that a special puncture needle is used in the femoral artery (or brachial artery, only different in operation) of a coronary patient, a hole is minimally created, a PTCA balloon catheter and a vascular stent assembled on the balloon are inserted into a blood vessel together, a doctor operates the balloon catheter to reach a coronary lesion site under the guidance of a camera, and the PTCA balloon catheter is controlled to be inserted into the coronary stent at the lesion site, so that the stenosis of the lesion site is eliminated, and the treatment aim of blood circulation reconstruction is fulfilled. Chinese patent CN112620981B discloses a laser perforation method and a laser perforation device for a medical PTCA balloon, by placing the medical PTCA balloon on an adsorption platform and using ultraviolet laser for perforation, but the medical PTCA balloon in the application is perforated by vacuum adsorption on a processing platform, if the circumference of the balloon is uniformly perforated, the perforation efficiency is low because of manual overturn, and when the application is used for perforating the spindle balloon, the front and rear end circumferences of the spindle balloon and the middle circumference are different, in order to ensure the uniformity of the holes, the angles of the rotating balloon are different, but because the vibrating mirror and the laser are fixed, the application cannot effectively perforate the spindle balloon, in addition, because the vibrating mirror deflects the position of an inner XY lens to drive a laser spot, the spots at different positions have certain size differences on the processing breadth of the vibrating mirror, so that the perforations at different positions of the balloon have certain size errors. Disclosure of Invention The invention aims at overcoming the defects of the prior art, and provides a spindle-shaped balloon full-automatic array laser perforation device and method which are high in perforation efficiency, suitable for spindle-shaped balloon perforation and high in perforation quality. In order to achieve the technical purpose, the spindle-shaped saccule full-automatic array laser perforation device and the method adopt the technical scheme that: The utility model provides a full-automatic array laser perforating device of fusiform sacculus, includes step motor driven delivery board, step motor and control unit electric connection, delivery board surface both ends are to being equipped with the rotating electrical machines, the rotating electrical machines tip cover is equipped with the circular ring, two be equipped with fusiform sacculus between the circular ring, the trachea at fusiform sacculus both ends closely passes respectively the circular ring back is to the rotating electrical machines outside stretches out, one end the trachea is connected with the inflation unit, delivery board top is equipped with the laser instrument, the laser instrument tip cover is equipped with behind the CCD camera and is connected with the galvanometer, CCD camera focus with the relative position of galvanometer laser focus remains unchanged, the galvanometer is just to the delivery board of below. Preferably, the CCD camera is fixedly arranged above the conveying plate. Preferably, the rotating electrical machines tip is equipped with the reinforcement subassembly that strengthens circular ring and trachea connection compactness, and reinforcement subassembly includes the fixing base, and the telescopic link through miniature cylinder driven is worn to be equipped with on fixing base upper portion, and telescopic link bottom both sides are to being equipped with the catch bar, and the catch bar afterbody is equipped with the actuating lever, and afterbody is equipped with the push pad of contradicting in circular ring left and right sides respectively after two actuating lever alternately set up. Preferably, a rubber pad is arranged on the inner wall of the pressing pad. A spindle-shaped balloon full-automatic array laser perforation method comprises the following steps: S1, inflating and expanding a spindle-shaped balloon to be perforated, penetrating the spindle-shaped balloon into rotating motors at two ends, and enabling air pipes at two ends of the spindle-shaped balloon to be firmly fixed in a circular ring; s2, keeping the position of the CCD camera unchanged, starting a stepping motor to drive a conveying plate to move, enabling the spindle-shaped balloon to move to the lower part of the CCD camera, and enabling the CCD camera to identify the lowest point of machining of the spindle-shaped balloon and const