CN109513093B

CN109513093B - Catheter for coronary artery thrombus dissolving

Info

Publication number: CN109513093B
Application number: CN201811424966.2A
Authority: CN
Inventors: 钱德慧; 冯欢
Original assignee: Second Affiliated Hospital of Army Medical University
Current assignee: Second Affiliated Hospital of Army Medical University
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2021-01-05
Anticipated expiration: 2038-11-27
Also published as: CN109513093A

Abstract

The invention discloses a catheter for coronary thrombolysis, comprising a conduction hose and a guide wire. The outer edge of the right end of the conduction hose is vertically fixed with a support rod through a plate body, and the support rod is a threaded rod. The end of the support rod is horizontally set with a limiting frame, and the left end of the conductive hose is fixedly connected with a stretched hose, and the stretched hose is made of elastic rubber material. The drug discharge tubes connected in sequence of the present invention rely on the correspondingly connected guide wires to be threaded and guided into the coronary blood vessels. Whenever a thrombus or a thrombus in a concentrated area is encountered, the drug discharge tube that is closest to the conduction hose and is not occupied will be sent to the coronary blood vessel. The starting end of the connected guide wire is clamped into the corrugated gap of the guide wire through the fixing block and the clamping teeth, so that the position of the corresponding connected guide wire and the drug discharge tube is fixed, and then the guide wire of the other drug discharge tube is pushed, and the adjacent discharge tube is pushed. The medicine pipes are connected by stretched hoses, so that the movable medicine discharge pipe does not affect the fixed position of the medicine discharge pipe within a certain movement range.

Description

Catheter for coronary artery thrombus dissolving

Technical Field

The invention relates to the technical field of coronary artery thrombolytic catheters, in particular to a catheter for coronary artery thrombolytic.

Background

The coronary artery is also the coronary artery, which mainly surrounds the outer wall of the heart, is the artery supplying the blood of the heart, starts from the aortic sinus at the root of the aorta and is divided into two branches, and the common disease in the coronary artery is thrombus, which is easy to block the coronary artery and needs to be dissolved by guiding drugs through a catheter.

The traditional coronary artery thrombolytic catheter has the following defects:

the general coronary artery catheter for dissolving thrombus is only used for discharging medicine from the top end, and the catheter can only be used for dissolving thrombus singly after extending into the coronary artery, so that the thrombus treatment efficiency is seriously influenced, the time spent by a patient is prolonged, and the thrombus can have different positions, so that an operator needs to continuously change the position of the catheter to send medicine for many times, the operation difficulty is enhanced, and the treatment efficiency is influenced.

Disclosure of Invention

The invention aims to provide a catheter for coronary artery thrombolysis, and aims to solve the problems that the catheter for coronary artery thrombolysis only discharges medicine from the top end, the catheter only singly performs thrombolysis after extending into the coronary artery, the thrombus treatment efficiency is seriously influenced, the patient suffers long time, the thrombus has different positions, an operator needs to continuously change the position of the catheter to send medicine for multiple times, the operation difficulty is increased, and the treatment efficiency is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: a catheter for coronary artery thrombolytic comprises a conduction hose and a guide wire, wherein a support rod is fixedly connected to the outer edge of the right end head of the conduction hose through a vertical plate body, the support rod is a threaded rod, a limit frame is horizontally arranged at the tail end of the support rod, a stretching hose is fixedly connected to the left end head of the conduction hose, the stretching hose is made of elastic rubber materials, a plurality of drug discharge pipes are fixedly connected to the tail end of the stretching hose, the drug discharge pipes are sequentially communicated and connected through stretching hoses with the same structure, drug discharge holes are formed in the left side wall of each drug discharge pipe, a clamping groove body is fixedly arranged on the left side of the upper end head of each drug discharge pipe, a vascular ultrasonic probe is clamped inside the clamping groove body and electrically connected with external ultrasonic image playing equipment through a wire, a butt joint cylinder is fixedly connected to the side wall of each drug discharge pipe, and the positions of the butt joint cylinders on the side walls of the drug discharge pipes are staggered, the seal wire is that the quantity of high density smooth ripple tubule and seal wire and play pencil is corresponding, the terminal rigid coupling of seal wire has the core of leading and leads the core and be hard metal material, and the end of leading the core simultaneously inserts in a butt joint section of thick bamboo, the starting point department of seal wire is provided with the cluster piece, the punishment of punishment piece's border department equidistance has evenly been seted up the initiating terminal correspondence of perforating and seal wire and has been alternated and have been perforated.

Furthermore, the right end of the conduction hose is provided with a rubber butt joint sleeve, the outer wall of the rubber butt joint sleeve is made of hard rubber materials, and the inner wall of the rubber butt joint sleeve is made of soft rubber materials.

Furthermore, a threaded sleeve is sleeved on the supporting rod through threads, an annular slide way is arranged on the side wall of the threaded sleeve in an encircling mode, and the limiting frame is connected in the annular slide way through pulleys.

Furthermore, a top pressure plate is horizontally inserted into the right end of the limiting frame, and a sliding handle is convexly arranged at the end of the top pressure plate positioned on the outer ring of the limiting frame.

Further, the equal rigid coupling in the inside left and right sides of draw-in groove has elasticity card and elasticity card midpoint position protruding to the internal intermediate position of draw-in groove, and the both ends of elasticity card are all the fixed handing-over of slope on draw-in groove inner wall simultaneously.

Furthermore, butt joint section of thick bamboo port border department has cardboard and the tail end of cardboard to seted up the bayonet socket through the handing-over of resilience hinge, and the tail end slope of cardboard leans on the play pencil lateral wall of corresponding position simultaneously to lead and seted up the bayonet socket on the core lateral wall equally.

Furthermore, the side walls of the medicine outlet pipes right below the butting cylinders are fixedly connected with lantern rings, the lantern rings face the butting cylinders, and the guide wires correspondingly penetrate through the lantern rings.

Furthermore, a pressing handle penetrates through the side wall of the bundling block at the position of the through hole, a fixing block is fixedly connected with the pressing handle in a penetrating mode, the fixing block movably penetrates through the through hole, and clamping teeth are arranged at the tail end of the fixing block.

Furthermore, a movable sleeve is movably sleeved at the starting end of the guide wire, and a mark plate is fixedly connected on the movable sleeve.

Compared with the prior art, the invention has the beneficial effects that:

1. the medicine outlet pipes connected in sequence are guided into the coronary artery by means of the guide wires connected correspondingly, images conveyed back are detected by means of the blood vessel ultrasonic probe connected with the outer wall of each medicine outlet pipe, the position of thrombus in the coronary artery is determined, when a thrombus or thrombus in a concentrated area is encountered, the starting end of the guide wire connected with the medicine outlet pipe which is closest to the conduction hose and not occupied is clamped into a corrugated gap of the guide wire through the fixing block and the clamping teeth, so that the positions of the guide wire and the medicine outlet pipe connected correspondingly are fixed, then the guide wires of other medicine outlet pipes are pushed, and the adjacent medicine outlet pipes are connected through the stretching hose, so that the medicine outlet pipes at fixed positions are not influenced by the movable medicine outlet pipes within a certain moving range;

2. after the positions of the medicine discharging pipes are fixed, the end of the injector for injecting the medicine is inserted into the rubber butt-joint sleeve of the outer end of the conduction hose, the injector penetrates through the limiting frame, the top pressing plate in the limiting frame presses the side wall of the injector to enable the side wall of the injector to be stably connected, then the medicine is injected into the conduction hose, and then the medicine is discharged from the medicine discharging holes of the medicine discharging pipes, so that the medicine can directly, quickly and accurately act on corresponding thrombus.

Drawings

FIG. 1 is a schematic view of the whole structure of a catheter for coronary artery thrombolysis according to the present invention;

FIG. 2 is a top view structural diagram of the connection between the threaded sleeve and the limiting frame in the base of the catheter for coronary artery thrombolysis of the present invention;

FIG. 3 is a top view of a cluster block in the catheter for coronary thrombolysis according to the present invention;

FIG. 4 is a schematic diagram of the position distribution of the docking barrels on the corresponding drug outlet tubes in the catheter for coronary artery thrombolysis according to the present invention;

fig. 5 is a sectional structure view of a clamping groove body in the catheter for coronary artery thrombolysis of the invention.

In FIGS. 1-5: 1-a conductive hose; 2-stretching the hose; 3-a medicine outlet pipe; 4-clamping groove body; 5-a vascular ultrasound probe; 6-medicine outlet holes; 7-a collar; 8-a guide wire; 9-a guide core; 10-a clamping plate; 11-a docking cartridge; 12-a label plate; 13-a movable sleeve; 14-a bundling block; 15-rubber docking sleeve; 16-a support bar; 17-a thread sleeve; 18-a limit frame; 19-an annular slide; 20-bayonet; 21-a top pressing plate; 22-perforation; 23-pressing the handle; 24-fixing blocks; 25-latch; 26-spring card.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a catheter for coronary artery thrombolytic comprises a conduction hose 1 and a guide wire 8, wherein a support rod 16 and a support rod 16 are threaded rods are fixedly connected to the outer edge of the right end head of the conduction hose 1 through a vertical plate body, a limit frame 18 is horizontally arranged at the tail end of the support rod 16, a stretching hose 2 and a stretching hose 2 are fixedly connected to the left end head of the conduction hose 1 and made of elastic rubber materials, a medicine outlet pipe 3 is fixedly connected to the tail end of the stretching hose 2 and has a plurality of medicine outlet pipes 3, the medicine outlet pipes 3 are sequentially communicated and connected through the stretching hoses 2 with the same structure, a medicine outlet hole 6 is formed in the left side wall of the medicine outlet pipe 3, a clamping groove body 4 is fixedly arranged on the left side of the upper end head of the medicine outlet pipe 3, a blood vessel ultrasonic probe 5 is clamped in the clamping groove body 4, and the blood vessel ultrasonic probe 5 is electrically connected to an external ultrasonic image playing, go out on 3 lateral walls of pencil 3 equal rigid couplings have a butt joint section of thick bamboo 11 and stagger from top to bottom to a butt joint section of thick bamboo 11 position on each play 3 lateral walls of pencil, it is corresponding with the quantity of play pencil 3 that seal wire 8 is the smooth corrugated tubule of high density and seal wire 8, seal wire 8's terminal rigid coupling has lead core 9 and leads core 9 and be hard metal material, and the end of leading core 9 simultaneously is inserted in a butt joint section of

thick bamboo

11, 8's starting point department is provided with cluster piece 14, the equidistance is located evenly to have seted up

perforation

22 and 8's of seal wire initiating terminal correspondence has been alternated and has been perforated perforation 22 in the border of cluster piece 14.

The right side end department of conduction hose 1 is provided with rubber docking sleeve 15 and the outer wall of rubber docking sleeve 15 is hard rubber material, and the inner wall of rubber docking sleeve 15 is soft rubber material, and rubber docking sleeve 15 makes things convenient for the syringe end of injection medicine to stabilize and dock in conduction hose 1 port department without the clearance.

The swivel nut 17 has been cup jointed through the screw thread on the bracing piece 16, it is equipped with annular slide 19 and spacing frame 18 through the pulley handing-over in annular slide 19 to encircle on the swivel nut 17 lateral wall, and swivel nut 17 conveniently adjusts the position along bracing piece 16 swivelling movement for spacing frame 18 removes to the position that is suitable for, and relies on annular slide 19's connection, makes spacing frame 18 keep fixed position under the condition of swivel nut 17 arbitrary rotation.

The right end of the limiting frame 18 is horizontally inserted with a top pressure plate 21, the top pressure plate 21 is convexly provided with a sliding handle at the end of the outer ring of the limiting frame 18, and the top pressure plate 21 presses the side wall of the injector for injecting the medicine along with the position adjustment of the limiting frame 18, so that the injector is stable.

The inside left and right sides of draw-in groove body 4 all rigid coupling has elasticity card 26 and elasticity card 26 mid point position protruding to the inside intermediate position of draw-in groove body 4, and the both ends of elasticity card 26 all incline fixed handing-over on 4 inner walls of draw-in groove body simultaneously, and elasticity card 26 makes things convenient for vascular ultrasonic probe 5 to stabilize the card in draw-in groove body 4.

The bayonet 20 has been seted up through the end that kick-back hinge handing-over had cardboard 10 and cardboard 10 to 11 port border departments of butt joint section of thick bamboo, and the end slope of cardboard 10 leans on the 3 lateral walls of play pencil of corresponding position simultaneously to bayonet 20 has been seted up on leading the core 9 lateral wall equally, bayonet 20 of bayonet 20 interlock on leading the core 9 lateral wall is relied on to the resilience force of kick-back hinge to cardboard 10, makes and leads core 9 and play pencil 3 to be connected firmly.

The utility model discloses a medicine tube 3, including butt joint section of thick bamboo 11, the equal rigid coupling has lantern ring 7 and lantern ring 7 to face butt joint section of thick bamboo 11 on the play pencil 3 lateral wall under the butt joint section of

thick bamboo

11, and 8 corresponding the wearing of seal wire are put in lantern ring 7 simultaneously, and lantern ring 7 makes 8 laminating of seal wire go out the lateral wall of pencil 3, avoids intertwine to influence and wears to put.

The pressing handle 23 penetrates through the side wall of the bundling block 14 at the position of the through hole 22, the pressing handle 23 is fixedly connected with the fixing block 24 in a connecting mode, the fixing block 24 is movably inserted into the through hole 22, the clamping teeth 25 are arranged at the tail end of the fixing block 24, and after the corresponding medicine outlet pipe 3 controlled by the guide wire 8 reaches the corresponding position, the pressing handle 23 is pressed, so that the fixing block 24 is pressed to the side wall of the guide wire 8 in a sliding mode, and the clamping teeth 25 are inserted into the corrugated gaps of the guide wire 8, so that the guide wire 8 is stable.

The initiating terminal activity of seal wire 8 is cup jointed movable sleeve 13 and the rigid coupling has mark tablet 12 on the movable sleeve 13, and mark tablet 12 is used for marking different number of figures, makes things convenient for operating personnel to distinguish different positions seal wire 8 and corresponds control different positions and go out pencil 3.

The working principle is as follows: the medicine outlet pipes 3 connected in sequence are guided into the coronary vessel by means of the guide wires 8 connected correspondingly, and the image conveyed back is detected by means of the blood vessel ultrasonic probe 5 connected with the outer wall of each medicine outlet pipe 3, so that the position of the thrombus in the coronary vessel is determined, when encountering a thrombus or thrombus in a concentrated area, the initial end of the guide wire 8 connected with the medicine outlet pipe 3 which is closest to the conduction hose 1 and is not occupied is clamped into the corrugated gap of the guide wire 8 through the fixing block 24 and the clamping teeth 25, so that the positions of the guide wire 8 and the medicine outlet pipe 3 connected correspondingly are fixed, then the guide wires 8 of other medicine outlet pipes 3 are pushed, so that the guide wires 8 continuously pull other medicine outlet pipes 3 to move, and the adjacent medicine outlet pipes 3 are connected through the stretching hose 2, so that the medicine outlet pipes 3 convenient to move do not influence the medicine outlet pipes 3 at fixed positions in a certain moving range, thereby facilitating the medicine application to be aligned with the separated thrombus, after each 3 rigidity of play pencil, insert the syringe end of injection medicine in the rubber butt joint cover 15 of conduction hose 1 outer end to make the syringe pass spacing frame 18, make roof pressure board 21 in the spacing frame 18 compress tightly the syringe lateral wall, make its firm connection, then to injection medicine in the conduction hose 1, then the medicine just discharges from the play medicine hole 6 department of each play pencil 3, and direct accurate effect corresponds the thrombus fast.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A catheter for coronary thrombolysis, comprising a conduction hose (1) and a guide wire (8), characterized in that: the outer edge of the right end of the conduction hose (1) is vertically fixed by a plate body. A support rod (16) is connected, the end of the support rod (16) is horizontally provided with a limiting frame (18), and the left end of the conductive hose (1) is fixedly connected with a stretching hose (2). The end of the extension tube (2) is fixedly connected with a medicine outlet tube (3), and there are several medicine outlet tubes (3). The left side wall of the medicine discharge pipe (3) is provided with a medicine discharge hole (6), and the left side of the upper end of the medicine discharge pipe (3) is fixedly provided with a clamping groove body (4), the clamping groove A blood vessel ultrasonic probe (5) is clamped inside the body (4), and the blood vessel ultrasonic probe (5) is electrically connected to an external ultrasonic image playback device through a wire, and a docking cylinder ( 11), the guide wire (8) is a high-density flat corrugated thin tube and the guide wire (8) corresponds to the number of the drug discharge pipes (3), and the end of the guide wire (8) is fixed with a guide core (9) and the end of the guide core (9) is inserted into the butt cylinder (11), the starting end of the guide wire (8) is provided with a bundling block (14), the edge of the bundling block (14), etc. A perforation (22) is evenly opened and the starting end of the guide wire (8) is correspondingly inserted through the perforation (22).

2. A catheter for coronary thrombolysis according to claim 1, characterized in that: the right end of the conductive hose (1) is provided with a rubber butt sleeve (15) and the rubber butt sleeve The outer wall of (15) is made of hard rubber material, and the inner wall of the rubber butt sleeve (15) is made of soft rubber material.

3. A catheter for coronary thrombolysis according to claim 1, wherein the support rod (16) is sleeved with a screw sleeve (17) through a thread, and the screw sleeve (17) An annular slideway (19) is provided around the side wall, and the limiting frame (18) is handed over in the annular slideway (19) through a pulley.

4. A catheter for coronary thrombolysis according to claim 1, characterized in that: a top pressure plate (21) is inserted horizontally at the right end of the limit frame (18) and the top pressure plate (21) is in A sliding handle is protruded at the end of the outer ring of the limiting frame (18).

5. A catheter for coronary thrombolysis according to claim 1, characterized in that: elastic cards (26) and elastic cards (26) are fixedly fixed on both the left and right sides of the card groove body (4). The midpoint position of ) protrudes toward the inner middle position of the card slot body (4), and at the same time, both ends of the elastic card (26) are obliquely fixed and connected on the inner wall of the card slot body (4).

6. A catheter for coronary thrombolysis according to claim 1, characterized in that: the edge of the port of the docking cylinder (11) is handed over with a clamping plate (10) and a clamping plate (10) through a rebound hinge. ) is provided with a bayonet (20) at the end, and at the same time the end of the clamping plate (10) leans against the side wall of the drug discharge tube (3) at the corresponding position, and the side wall of the guide core (9) is also provided with a bayonet ( 20).

7. A catheter for coronary thrombolysis according to claim 1, characterized in that: a collar ( 7) And the ferrule (7) is facing the butt barrel (11), and at the same time the guide wire (8) is threaded into the ferrule (7) correspondingly.

8. A catheter for coronary thrombolysis according to claim 1, characterized in that: a pressing handle (23) is pierced through the side wall of the bundle block (14) where the perforation (22) is located and The pressing handle (23) is fixedly connected with a fixing block (24), the fixing block (24) is movably inserted into the through hole (22), and a clamping tooth (25) is provided at the end of the fixing block (24).

9. A catheter for coronary thrombolysis according to claim 1, characterized in that: the starting end of the guide wire (8) is movably sleeved with a movable sleeve (13) and the movable sleeve (13) is on the movable sleeve (13). A marker plate (12) is fixed.