Novel coronary artery balloon dilatation catheter

Abstract

The utility model discloses a novel coronary artery balloon dilatation catheter, which relates to the technical field of medical instruments and comprises a catheter, the outer surface of the catheter is connected with a balloon, the surface of one end of the catheter is connected with a probe in a penetrating manner, and the outer surface of one end of the catheter is provided with an adjusting unit. A plurality of miniature blades are annularly arranged on the outer surface of the balloon, the catheter is matched with the catheter through an adjusting seat, a movable column and a limiting ball, the insertion speed of the catheter is adjusted, and the placement speed of the catheter is adjusted through the matching of three adjusting blocks, a shifting block, a limiting pin, an adjusting groove, a pin hole and the movable column. The catheter inserting speed is conveniently controlled, the placing stability is improved, the operation time is shortened, the adjusting frequency is reduced, the catheter is conveniently placed in, the second catheter cavity is matched with the probe and the miniature blade, the hematoma position is conveniently broken, suction is conducted through the negative pressure device, the hematoma position is conveniently and rapidly dredged, and blood vessels are prevented from being blocked by the hematoma.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments especially relates to a novel coronary artery balloon dilatation catheter. BACKGROUND

[0002] Coronary intervention is to open the narrow or blocked coronary artery through minimally invasive means, restore the blood supply of myocardium, and thus improve the symptoms and prevent heart events; its purpose is to quickly restore the blood flow of coronary artery, reduce myocardial injury, and save the patient's life;

[0003] In the coronary intervention, due to balloon dilation or guide wire puncture and other reasons, combined with the fact that some old patients have relatively fragile blood vessels, it is easy to cause coronary artery dissection and further cause blood accumulation in the tunica media of blood vessels, forming a hematoma; due to the high pressure in the coronary artery, if the hematoma has an inlet but no outlet, it is extremely possible to continuously peel off the distal end of the blood vessel, affect the blood flow, and even cause acute coronary occlusion, threatening the patient's life;

[0004] Therefore, the conventional treatment method is to take coronary artery balloon dilatation or coronary artery stent implantation; coronary artery stent implantation: usually combined with balloon dilatation, after dilatation at the narrow part, if there is still residual stenosis or blood vessel contraction, collapse, and cannot maintain the patency of the lumen, a coronary artery stent needs to be implanted to maintain the patency of the coronary artery;

[0005] And the coronary artery balloon dilatation: a small balloon is sent to the narrow part of the coronary artery through a catheter, and then the balloon is inflated to expand, thereby expanding the narrow blood vessel and facilitating the dredging of the blood vessel; the balloon catheter is the main tool for placing the balloon, and in clinical operation, the speed of catheter insertion is generally controlled by the experience of doctors, and the stability of the catheter and balloon during placement cannot be guaranteed; secondly, the existing conventional cutting balloon has general cutting effect on the hematoma and cannot better play the role of aspirating the hematoma; therefore, the utility model provides a novel coronary artery balloon dilatation catheter. CONTENT OF THE UTILITY MODEL

[0006] In view of the deficiencies of the prior art, the utility model provides a novel coronary artery balloon dilatation catheter, which solves the problems raised in the above background art.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme: a novel coronary artery balloon dilatation catheter, comprising a catheter, a balloon connected to the outer surface of the catheter, a probe penetratingly connected to the surface of one end of the catheter, an adjusting unit provided on the outer surface of one end of the catheter, and a plurality of micro knives arranged in a ring shape on the outer surface of the balloon;

[0008] The adjusting unit comprises an adjusting base, the end face of the adjusting base is annularly connected with three connecting frames, one end of each of the three connecting frames is provided with a mounting hole, the inner side wall of each of the three mounting holes is connected with a movable column, a limiting groove is formed in the inside of the adjusting base, and the bottom end of each of the three movable columns and located in the inside of the limiting groove is connected with a limiting ball.

[0009] As a further technical scheme of the utility model, the end face of the catheter is correspondingly provided with a second lumen, the other end face of the catheter is provided with a first lumen, one end of the first lumen and the second lumen is located on the outer surface of the catheter, and the micro blade is serrated.

[0010] As a further technical scheme of the utility model, the outer surface of the adjusting base is annularly connected with three adjusting blocks, the outer surface of the adjusting base and the sliding path of the three adjusting blocks are correspondingly provided with adjusting grooves, the inner side wall of the adjusting groove is correspondingly provided with an expansion groove, and one end of the adjusting block is provided with a clamping groove.

[0011] As a further technical scheme of the utility model, the outer surface of the adjusting base is annularly connected with three adjusting blocks, the outer surface of the adjusting base and the sliding path of the three adjusting blocks are correspondingly provided with adjusting grooves, the inner side wall of the adjusting groove is correspondingly provided with an expansion groove, and one end of the adjusting block is provided with a clamping groove.

[0012] As a further technical scheme of the utility model, one end of each of the two dials is connected with a limiting pin, a connecting spring is connected between the two dials, and two groups of pin holes are formed in the corresponding position of the sliding path of the two limiting pins and the inner side wall of the adjusting groove.

[0013] As a further technical scheme of the utility model, the inner diameter of the expansion groove is matched with the outer diameter of the movable column, the inner diameter of the adjusting groove is matched with the sliding path of the adjusting block, the inner diameter of the sliding groove is matched with the sliding path of the dial, and the inner diameter of the pin hole is matched with the outer diameter of the limiting pin.

[0014] As a further technical scheme of the utility model, the inside of the probe is a hollow structure, and the opening of one end of the first lumen and the second lumen is located on the two sides of the balloon respectively.

[0015] The utility model provides a novel coronary artery balloon dilatation catheter, which has the following advantages compared with the prior art:

[0016] 1. The novel coronary artery balloon dilatation catheter of the design can adjust the speed of catheter insertion through the cooperation of the adjusting seat, the movable column, the limiting ball and the catheter, the cooperation between the three adjusting blocks, the shifting block, the limiting pin, the adjusting slot, the pin hole and the movable column can adjust and limit the placement speed of the catheter, the adjusting mode is simple and convenient, the doctor can conveniently control the speed of catheter insertion, improve the placement stability, reduce the operation time and the adjustment frequency.

[0017] The novel coronary artery balloon dilatation catheter of the design can conveniently place the catheter through the accommodation and connection of the first lumen to the guide wire, the cooperation of the second lumen, the probe and the micro blade can conveniently break the blood clot and perform suction through the external negative pressure device, conveniently dredge the blood clot, prevent the blood clot from blocking the blood vessel, and effectively improve the cutting effect of the micro blade on the blood clot through the serrated part of the micro blade. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 It is Figure 2 A-A sectional view in the figure;

[0021] Figure 4 It is Figure 3 The enlarged view of A in the figure;

[0022] Figure 5 It is an exploded structural schematic view of the adjusting unit in the utility model;

[0023] Figure 6 It is a structural schematic view of the adjusting block clamped on the movable column in the utility model.

[0024] In the figure: 1, catheter; 11, first lumen; 12, second lumen; 2, balloon; 3, micro blade; 4, probe; 5, adjusting unit; 51, adjusting seat; 52, connecting frame; 53, mounting hole; 54, movable column; 55, limiting slot; 56, adjusting slot; 57, limiting ball; 58, adjusting block; 59, clamping groove; 501, sliding groove; 502, shifting block; 503, limiting pin; 504, connecting spring; 505, telescopic slot; 506, pin hole. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments, and on the basis of the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-4 The utility model provides a kind of novel coronary artery balloon dilatation catheter technical scheme: including catheter 1, the outer surface of catheter 1 is connected with balloon 2, the surface of one end of catheter 1 is connected with probe 4, the outer surface of one end of catheter 1 is provided with adjusting unit 5, the outer surface of balloon 2 is annularly provided with multiple micro-blades 3, adjusting unit 5 includes adjusting seat 51, one end surface of adjusting seat 51 is annularly connected with three connecting frames 52, one end of three connecting frames 52 is all provided with mounting hole 53, the inner side wall of three mounting holes 53 is all connected with movable column 54, the inside of adjusting seat 51 is provided with limiting groove 55, the bottom of three movable columns 54 and inside limiting groove 55 are all connected with limiting ball 57.

[0027] As Figures 1-4 The end surface of catheter 1 is provided with second lumen 12 corresponding to probe 4, the other end surface of catheter 1 is provided with first lumen 11, one end of first lumen 11 and second lumen 12 is located on the outer surface of catheter 1, micro-blade 3 is sawtooth, the inside of probe 4 is hollow structure, the opening of one end of first lumen 11 and second lumen 12 is respectively located on the two sides of balloon 2, it needs to be explained that, second lumen 12 can be inserted into probe 4 for puncture, and negative pressure suction is carried out by connecting negative pressure device through probe 4, and first lumen 11 can accommodate guide wire, so as to be convenient for sending catheter into hematoma position in blood vessel through guide wire, sawtooth micro-blade 3 can cut and release hematoma position, so as to be convenient for dredging hematoma position.

[0028] As Figures 2-6As shown, the outer surface of the adjusting seat 51 is annularly connected with three adjusting blocks 58, the outer surface of the adjusting seat 51 is provided with adjusting grooves 56 corresponding to the sliding paths of the three adjusting blocks 58, the inner side wall of the adjusting groove 56 is provided with an extension slot 505 corresponding to the movable column 54, one end of the adjusting block 58 is provided with a clamping groove 59, the outer surface of the movable column 54 is provided with a slot corresponding to the clamping groove 59, the outer surface of one end of the three adjusting blocks 58 is provided with a sliding groove 501, the inner side wall of the sliding groove 501 is connected with two push blocks 502, one end of the two push blocks 502 is connected with a limiting pin 503, the two push blocks 502 are connected with a connecting spring 504, the inner side wall of the adjusting groove 56 is provided with two groups of pin holes 506 corresponding to the sliding paths of the two limiting pins 503, the inner diameter of the extension slot 505 is matched with the outer diameter of the movable column 54, the inner diameter of the adjusting groove 56 is matched with the sliding path of the adjusting block 58, the inner diameter of the sliding groove 501 is matched with the sliding path of the push block 502, and the inner diameter of the pin hole 506 is matched with the outer diameter of the limiting pin 503.

[0029] The working principle of the utility model is as follows: according to the position of the catheter 1 and the distance from the lesion, the two push blocks 502 at one end of the corresponding adjusting block 58 are slid along the inner side wall of the sliding groove 501, the connecting spring 504 is extruded, the two limiting pins 503 are separated from the pin holes 506, the movable column 54 is pressed inwards along the extension slot 505, the adjusting block 58 is slid along the inner side wall of the adjusting groove 56, the clamping groove 59 at one end of the adjusting block 58 is clamped with the slot on the outer surface of the movable column 54 (as shown), then the two push blocks 502 are loosened, the connecting spring 504 drives the two push blocks 502 and the limiting pins 503 to reset, and the limiting pins 503 are inserted into the corresponding pin holes 506, so that the limiting ball 57 presses the outer surface of the catheter 1, and the catheter 1 and the balloon 2 are slowly sent to the blood vessel blockage through the guide wire in the first lumen 11, so that the adjusting effect of the speed of the catheter 1 and the balloon 2 is realized. Figure 6

[0030] After the catheter 1 and the balloon 2 are put in, the balloon 2 is inflated, the blood vessel is expanded, the blood clot in the blood vessel is punctured and broken through the probe 4 and the micro knife 3, the blood in the blood clot is released, and the blood after the break is negative pressure suction through the probe 4 connected with the negative pressure device, so that the blockage is quickly dredged.

[0031] ​The above are only preferred embodiments of the present utility, it should be pointed out that, for those skilled in the art, without departing from the principle of the present utility, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present utility. The structure, device and operation method not specifically described and explained in the present utility, if no special description and limitation, according to the conventional means of the art.

Claims

1. A novel coronary balloon dilatation catheter characterized by, The utility model provides a kind of balloon catheter, including catheter (1): the outer surface of the catheter (1) is connected with balloon (2), the outer surface of one end of the catheter (1) is connected with probe (4) through, the outer surface of one end of the catheter (1) is equipped with adjusting unit (5), the outer surface of the balloon (2) is circularly equipped with multiple micro-blades (3); The adjusting unit (5) includes an adjusting seat (51), one end of the adjusting seat (51) is connected with three connecting frames (52) in a ring shape, one end of each of the three connecting frames (52) is provided with a mounting hole (53), the inner side wall of each of the three mounting holes (53) is connected with a movable column (54), a limiting groove (55) is formed in the inside of the adjusting seat (51), and the bottom end of each of the three movable columns (54) and inside the limiting groove (55) is connected with a limiting ball (57).

2. A novel coronary balloon dilatation catheter as claimed in claim 1, wherein, The first lumen (11) and the second lumen (12) are located on the outer surface of the catheter (1) at one end, and the micro-blade (3) is serrated.

3. A novel coronary balloon dilatation catheter as claimed in claim 1, wherein, The outer surface of the adjusting seat (51) is connected with three adjusting blocks (58) in a ring shape, the adjusting groove (56) is formed in the outer surface of the adjusting seat (51) and the sliding path of the three adjusting blocks (58), the expansion groove (505) is formed in the inner side wall of the adjusting groove (56) and the movable column (54), and the adjusting block (58) is provided with a clamping groove (59) at one end.

4. A novel coronary balloon dilatation catheter as claimed in claim 3, wherein, The outer surface of the movable column (54) is provided with a corresponding slot, the outer surface of one end of the three adjusting blocks (58) is provided with a sliding groove (501), and the inner side wall of the sliding groove (501) is connected with two dial blocks (502).

5. A novel coronary balloon dilatation catheter as claimed in claim 4, wherein, One end of each of the two dial blocks (502) is connected with a limiting pin (503), and the two dial blocks (502) are connected with a connecting spring (504), and the inner side wall of the adjusting groove (56) is provided with two groups of pin holes (506) corresponding to the sliding path of the two limiting pins (503).

6. A novel coronary balloon dilatation catheter as claimed in claim 5, wherein, The inner diameter of the expansion groove (505) is matched with the outer diameter of the movable column (54), the inner diameter of the adjusting groove (56) is matched with the sliding path of the adjusting block (58), the inner diameter of the sliding groove (501) is matched with the sliding path of the dial block (502), and the inner diameter of the pin hole (506) is matched with the outer diameter of the limiting pin (503).

7. A novel coronary balloon dilatation catheter as claimed in claim 2, wherein, The inside of the probe (4) is a hollow structure, and the openings of the first lumen (11) and the second lumen (12) are located on both sides of the balloon (2).

Images