CN110743085A - Catheter for clinical intravascular interventional therapy - Google Patents

Abstract

The invention discloses a catheter for clinical intravascular interventional therapy, which comprises a filling tube, wherein a filling tube limiting structure is arranged in the middle of the filling tube, a connecting catheter seat is arranged on the outer surface of one end of the filling tube, a second connecting catheter port is fixedly connected to the outer surface of one end of the connecting catheter seat, a protective antifouling structure is arranged on the outer surface of one end of the second connecting catheter port, a connecting outer tube is arranged on the outer surface of the other end of the filling tube, an expandable balloon is arranged on the outer surface of one end of the connecting outer tube, and a catheter main body is arranged on the outer surface of the front end of the expandable balloon. The anti-blocking injection device can limit the position of the filling tube by the filling tube limiting structure, so as to avoid hindering the work of medical personnel, avoid the impact of the injected medicine on blood vessels by the anti-blocking injection device, avoid the discomfort of patients, and conveniently ensure the sanitation of the port of the catheter by protecting the anti-fouling structure, so as to be convenient for the next use.

Description

A kind of catheter for clinical endovascular interventional therapy

technical field

The invention relates to the field of clinical medical instruments, in particular to a catheter for clinical endovascular interventional therapy.

Background technique

A catheter for clinical endovascular interventional therapy is a catheter used for intravascular interventional therapy in clinical medical treatment. It is easy to use and has been widely used. The functional requirements of therapeutic catheters are also increasing.

During use, a clinical catheter for endovascular interventional therapy can perform the following operations: in cardiac interventional therapy, the balloon catheter is inserted into the blood vessel by percutaneous puncture under the guidance of medical imaging equipment. For the stenotic part, balloon expansion is performed under strict supervision, so that the stenotic part of the blood vessel can be expanded, so as to achieve the purpose of restoring the lumen diameter and speeding up blood circulation.

Although the existing catheter for clinical intravascular interventional therapy is simple in structure and convenient to use, it has a single function. When it is released, it may hinder the medical staff's treatment work, which has certain inconvenience. When an existing catheter for clinical endovascular interventional therapy is used for drug injection to a patient, the injection port is easily blocked by the blood vessel. It is inconvenient for the injection of drugs, it is easy to cause a certain impact on the blood vessels, and has certain adverse effects. The existing catheter for clinical endovascular interventional therapy is easily infected by dirt when the two catheter ports are connected in use, which has certain disadvantages. Inconvenience, for this reason, we propose a catheter for clinical endovascular interventional therapy.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the existing defects and provide a catheter for clinical endovascular interventional therapy, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: including a filling tube, a filling tube limiting structure is arranged in the middle of the filling tube, a connecting catheter seat is provided on the outer surface of one end of the filling tube, and the connecting catheter seat is The outer surface of one end is fixedly connected with the No. 2 connection conduit port, the outer surface of one end of the No. 2 connection conduit port is provided with a protective anti-fouling structure, the outer surface of the other end of the filling pipe is provided with a connection outer pipe, and the connection outer pipe is provided on the outer surface. The outer surface of one end is provided with an expandable balloon, the outer surface of the front end of the expandable balloon is provided with a catheter body, the outer surface of the front end of the catheter body is provided with an expansion sleeve, and the outer surface of one end of the expansion sleeve is provided with a protective Block the injection device.

Preferably, an outer surface of one side of the filling tube limiting structure is provided with a movable slip ring, and an outer surface of one side of the movable slip ring is provided with a connecting support rod, and between the movable slip ring and the connecting support rod A detachable connecting buckle is provided, one side of the connecting support rod is provided with an adhesive splint, one outer surface of the pasting splint is provided with a double-sided adhesive tape, and the other side of the connecting support rod is outside. An adsorption splint is arranged on the surface, an adsorption magnet is fixedly installed on one outer surface of the adsorption splint, and an outer surface of one side of the movable slip ring is detachably connected with the outer surface of one end of the connecting support rod through a detachable connection buckle, so A No. 1 connecting bracket is arranged between the sticking splint and the connecting support rod, the other side outer surface of the sticking splint is movably connected with the one side outer surface of the connecting support rod through a No. 1 connecting support, and the adsorption splint is A No. 2 connecting bracket is arranged between the connecting support rod, and the other side outer surface of the adsorption splint is movably connected with the other side outer surface of the connecting support rod through the No. 2 connecting bracket.

Preferably, an outer surface of the anti-clogging drug injection device is provided with a beveled outer protective tube, an outer surface of one end of the beveled outer protective tube is fixedly connected with a drug injection inner tube, and an outer surface of the drug injection inner tube is fixedly connected with a Diffusion hole.

Preferably, an outer surface of one end of the protection and antifouling structure is provided with a positioning and mounting block, an outer surface of one side of the positioning and mounting block is provided with a No. 2 connecting strip, and an outer surface of one end of the No. 2 connecting strip is fixedly connected with two No. 1 anti-fouling cap, the other outer surface of the positioning and mounting block is provided with a No. 1 connecting strip, and one end of the No. 1 connecting strip is fixedly connected with a No. 1 anti-fouling cap.

Preferably, the outer surface of one end of the anti-clogging drug injection device is provided with a tapered tip segment, and the outer surface of one end of the tapered tip segment is fixedly connected with the outer surface of one end of the inner tube for injection. The outer surface of the other end of the tube is fixedly connected to the outer surface of one end of the filling tube.

Preferably, the outer surface of one end of the No. 2 connection conduit port is fixedly connected with a No. 1 connection conduit port and a connection isolation block, and the connection isolation block is located between the No. 1 connection conduit port and the No. 2 connection conduit port, and the positioning installation An installation button is arranged between the block and the connection isolation block, and the outer surface of the lower end of the positioning installation block is detachably connected to the middle outer surface of the connection isolation block through the installation button.

Preferably, the inner diameter of the movable slip ring is smaller than the outer diameter of the filling pipe, and the inner surface of the movable slip ring is movably connected to the outer surface of the middle part of the filling pipe.

Preferably, the interior of the expandable balloon is composed of alternately arranged valley peaks and valley bottoms, and a straight rod is arranged between the drug injection inner tube and the expansion sleeve.

Compared with the prior art, the beneficial effects of the present invention are:

1. The present invention, through the filling tube limiting structure, can limit the position of the filling tube through the clamping action of an adsorption magnet, a double-sided tape, or an adhesive splint and an adsorption splint so as not to hinder the treatment of medical staff when treating a patient. It can prevent the filling tube from dragging and hindering the work of medical staff. Different methods can be selected according to the actual medical conditions to limit the position of the filling tube to a certain position, so as to facilitate the work of medical staff and be beneficial to people's use.

2. The present invention uses the anti-blocking injection drug device, when the drug is injected into the blood vessel of the patient, it can be directly carried out through the catheter, and the beveled outer protective tube can prevent the inner wall of the learning tube from fitting and blocking the diffusion drug hole, which can ensure the drug. The injection can be performed without causing any impact on blood vessels, which is beneficial to people's use.

3. In the present invention, by protecting the antifouling structure, after the treatment of the patient, the medical staff sterilizes, disinfects and cleans the catheter, and can cover the No. 1 anti-fouling cap and the No. 2 anti-fouling cap to connect the No. The top of the No. 1 connecting conduit port can effectively prevent the ports of No. 1 connecting conduit port and No. 2 connecting conduit port from being polluted, which can ensure the hygiene of the instrument. There can also be a positioning installation block to restrict No. 1 anti-fouling cap and No. 2 anti-fouling cap. The dirty cap can avoid being lost or soiled when dropped, which is beneficial to people's use.

Description of drawings

Fig. 1 is the overall view of the present invention;

Fig. 2 is the structural representation of the connection catheter holder in Fig. 1 of the present invention;

3 is a schematic structural diagram of the expandable balloon in FIG. 1 of the present invention;

Fig. 4 is the structural representation of the expansion sleeve in Fig. 1 of the present invention;

FIG. 5 is a schematic structural diagram of the filling tube limiting structure in FIG. 1 of the present invention;

6 is a schematic structural diagram of the anti-blocking injection device in FIG. 1 of the present invention;

FIG. 7 is a schematic structural diagram of the protection and antifouling structure in FIG. 1 of the present invention;

In the figure: 1. Filling tube; 2. Connecting outer tube; 3. Limiting structure of filling tube; 31. Active slip ring; 32. Detachable connecting buckle; 33. Adhesive splint; 34. Connecting support rod; 35. Adsorption magnet; 36. Adsorption splint; 37. Double-sided tape; 4. Expandable balloon; 5. Expansion sleeve; 6. Anti-clogging injection device; 61. Inner tube for injection; Beveled outer protective tube; 7. Conical tip section; 8. Connecting conduit seat; 9. Protecting anti-fouling structure; 91, No. 1 anti-fouling cap; 92, No. 2 anti-fouling cap; 93, No. 2 connecting strip; 94 , No. 1 connecting strip; 95, positioning installation block; 10, No. 1 connecting conduit port; 11, connecting isolation block; 12, No. 2 connecting conduit port; 13, conduit main body.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-7, the present invention provides a technical solution: including a filling tube 1, a filling tube limiting structure 3 is arranged in the middle of the filling tube 1, and a connecting catheter seat 8 is provided on the outer surface of one end of the filling tube 1, and the connecting catheter The outer surface of one end of the seat 8 is fixedly connected with the No. 2 connection conduit port 12, the outer surface of one end of the No. 2 connection conduit port 12 is provided with a protective anti-fouling structure 9, and the outer surface of the other end of the filling pipe 1 is provided with a connection outer pipe 2. The outer surface of one end of the outer tube 2 is provided with an expandable balloon 4, the outer surface of the front end of the expandable balloon 4 is provided with a catheter body 13, the outer surface of the front end of the catheter body 13 is provided with an expansion sleeve 5, and an outer surface of one end of the expansion sleeve 5 is provided. An anti-blocking injection medicine device 6 is provided.

Different ways can be selected according to the medical environment to limit the position of the filling tube 1. In this embodiment, preferably, a movable slip ring 31 is provided on one side of the outer surface of the filling tube limiting structure 3. A connecting support rod 34 is provided on the outer surface of the side, a detachable connecting buckle 32 is provided between the movable slip ring 31 and the connecting support rod 34, and one side of the connecting support rod 34 is provided with an adhesive splint 33, and the adhesive splint 33 A double-sided adhesive tape 37 is provided on the outer surface of one side of the connecting rod 34, an adsorption splint 36 is provided on the outer surface of the other side of the connecting support rod 34, and an adsorption magnet 35 is fixedly installed on the outer surface of one side of the adsorption splint 36. The outer surface of one side is detachably connected to the outer surface of one end of the connecting support rod 34 through the detachable connecting buckle 32. A number of connecting brackets is arranged between the adhesive splint 33 and the connecting support rod 34, and the other side of the adhesive splint 33 The outer surface is movably connected with the outer surface of one side of the connecting support rod 34 through the No. 1 connecting bracket, the No. 2 connecting bracket is provided between the adsorption splint 36 and the connecting support rod 34, and the other side outer surface of the adsorption splint 36 passes through the second connecting bracket. The number connecting bracket is movably connected with the other side outer surface of the connecting support rod 34 .

It can be ensured that the impact of the injected drug will not impact the inner wall of the blood vessel and avoid discomfort to the patient. In this embodiment, preferably, the outer surface of the anti-blocking injection drug device 6 is provided with a beveled outer protective tube 63, and the beveled outer protective tube 63 A drug injection inner tube 61 is fixedly connected to the outer surface of one end, and a diffusion drug hole 62 is fixedly connected to the outer surface of the drug injection inner tube 61 .

To ensure the sanitation at the connecting port of the conduit, in this embodiment, preferably, the outer surface of one end of the protection and antifouling structure 9 is provided with a positioning and mounting block 95, and one outer surface of the positioning and mounting block 95 is provided with a No. 2 connecting bar 93, A No. 2 anti-fouling cap 92 is fixedly connected to the outer surface of one end of the No. 2 connecting strip 93 , a No. 1 connecting strip 94 is provided on the outer surface of the other side of the positioning and mounting block 95 , and an outer surface of one end of the No. 1 connecting strip 94 is fixedly connected with a No. 1 anti-fouling cap 92 . Dirt cap 91.

To ensure the integrity of the catheter, in this embodiment, preferably, the outer surface of one end of the anti-clogging drug injection device 6 is provided with a tapered tip section 7, and the outer surface of one end of the tapered tip section 7 is connected to the inner tube 61 for injection. The outer surface of one end is fixedly connected, and the outer surface of the other end of the drug injection inner tube 61 is fixedly connected to the outer surface of one end of the filling tube 1 .

Various functions of the conduit can be realized. In this embodiment, preferably, the outer surface of one end of the No. 2 connection conduit port 12 is fixedly connected to the No. 1 connection conduit port 10 and the connection isolation block 11, and the connection isolation block 11 is located at the No. 1 connection conduit port 10. Between the No. 2 connection conduit port 12, a mounting button is provided between the positioning mounting block 95 and the connecting isolation block 11, and the outer surface of the lower end of the positioning mounting block 95 is detachable from the middle outer surface of the connecting isolation block 11 through the mounting button. connect.

It is convenient for the movable slip ring 31 to limit the position of the filling tube 1 . In this embodiment, preferably, the inner diameter of the movable slip ring 31 is smaller than the outer diameter of the filling tube 1 , and the inner surface of the movable slip ring 31 is the same as the middle outer surface of the filling tube 1 . Active connection.

To achieve the expansion of the stenotic part inside the blood vessel, in this embodiment, preferably, the interior of the expandable balloon 4 is composed of alternating valley peaks and valley bottoms, and a straight rod is arranged between the drug injection inner tube 61 and the expansion sleeve 5 .

The working principle and use process of the present invention: In the cardiac interventional therapy operation, the balloon catheter is inserted into the stenotic part of the blood vessel by percutaneous puncture technology under the guidance of medical imaging equipment, and can be expanded under strict supervision. The balloon 4 expands and expands, so that the narrowed part of the blood vessel is expanded, so as to achieve the purpose of restoring the lumen diameter and accelerating blood circulation. During the treatment, medical staff can use the adsorption magnet 35, double-sided tape 37 or paste splint 33 and The clamping action of the adsorption splint 36 limits the position of the filling tube 1 to the place where it will not hinder the medical staff's treatment, which can prevent the filling tube 1 from being dragged and hindering the work of the medical staff. Different methods can be selected according to the actual medical conditions. The position is limited to a certain position to facilitate the work of medical staff. When injecting drugs to patients, it can be directly carried out through the catheter, and the beveled outer protective tube 63 can prevent the inner wall of the learning tube from fitting and blocking the diffusion drug hole 62. It can ensure that the drug can be injected without causing any impact on the blood vessels and avoid the discomfort of the patient. After the treatment, the medical staff will sterilize and clean the catheter, and the No. 1 anti-fouling cap 91 and No. 2 anti-fouling cap 92 can be Covering the No. 1 connecting duct port 10 and the No. 2 connecting duct port 12 can effectively prevent the ports of the No. 1 connecting duct port 10 and the No. 2 connecting duct port 12 from being polluted, which can ensure the sanitation of the instrument, and can also have positioning. The installation block 95 restricts the No. 1 anti-fouling cap 91 and the No. 2 anti-fouling cap 92, so as to avoid falling and being lost or being soiled by falling, which can facilitate the next use and is beneficial to people's use.

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

Claims (8)

1. A catheter for clinical intravascular interventional therapy, comprising a filling tube (1), characterized in that: a filling tube limiting structure (3) is provided in the middle of the filling tube (1), and the filling tube (1) The outer surface of one end is provided with a connecting conduit seat (8), the outer surface of one end of the connecting conduit seat (8) is fixedly connected with the second connecting conduit port (12), and one end of the second connecting conduit port (12) is outside the The surface is provided with a protective antifouling structure (9), the outer surface of the other end of the filling tube (1) is provided with a connecting outer tube (2), and the outer surface of one end of the connecting outer tube (2) is provided with an expandable balloon (4), the outer surface of the front end of the expandable balloon (4) is provided with a catheter body (13), the outer surface of the front end of the catheter body (13) is provided with an expansion sleeve (5), the expansion sleeve (5) ) is provided with an anti-blocking injection device (6) on the outer surface of one end. 2 . The catheter for clinical endovascular interventional therapy according to claim 1 , wherein a movable slip ring ( 31 ) is provided on one outer surface of the filling tube limiting structure ( 3 ). One side outer surface of the slip ring (31) is provided with a connecting support rod (34), and a detachable connecting buckle (32) is provided between the movable slip ring (31) and the connecting support rod (34). An adhesive splint (33) is provided on one side of the connecting support rod (34), and a double-sided adhesive tape (37) is provided on the outer surface of one side of the sticking splint (33). The connecting support rod (34) ) is provided with an adsorption splint (36) on the outer surface of the other side, an adsorption magnet (35) is fixedly installed on one outer surface of the adsorption splint (36), and an outer surface of one side of the movable slip ring (31) passes through The detachable connecting buckle (32) is detachably connected to the outer surface of one end of the connecting support rod (34), and a No. The other side outer surface of the affixing splint (33) is movably connected to one side outer surface of the connecting support rod (34) through a No. 1 connecting bracket, and the suction splint (36) and the connecting support rod (34) are arranged between There is a No. 2 connecting bracket, and the other side outer surface of the adsorption splint (36) is movably connected with the other side outer surface of the connecting support rod (34) through the No. 2 connecting bracket. 3. A catheter for clinical intravascular interventional therapy according to claim 1, characterized in that: the outer surface of the anti-clogging drug injection device (6) is provided with a beveled outer protective tube (63), and the beveled outer protective tube (63). A medicine injection inner tube (61) is fixedly connected to the outer surface of one end of the protective tube (63), and a diffusion medicine hole (62) is fixedly connected to the outer surface of the medicine injection inner tube (61). 4. A catheter for clinical intravascular interventional therapy according to claim 1, wherein a positioning and mounting block (95) is provided on the outer surface of one end of the protective and antifouling structure (9), and the positioning and mounting block The outer surface of one side of (95) is provided with a No. 2 connecting strip (93), and an outer surface of one end of the No. 2 connecting strip (93) is fixedly connected with a No. 2 antifouling cap (92). The positioning and mounting block (95) ) is provided with a No. 1 connecting bar (94) on the outer surface of the other side of the ), and a No. 1 antifouling cap (91) is fixedly connected to the outer surface of one end of the No. 1 connecting bar (94). 5. A catheter for clinical endovascular interventional therapy according to claim 1, wherein the outer surface of one end of the anti-blocking drug injection device (6) is provided with a tapered tip segment (7), and the The outer surface of one end of the tapered tip section (7) is fixedly connected with the outer surface of one end of the inner medicine injection tube (61), and the outer surface of the other end of the inner medicine injection tube (61) is outside the outer surface of one end of the filling tube (1). Surface fixed connection. 6. A kind of catheter for clinical intravascular interventional therapy according to claim 1, characterized in that: the outer surface of one end of the No. 2 connection catheter port (12) is fixedly connected with a No. 1 connection catheter port (10) and is isolated from the connection Block (11), the connection isolation block (11) is located between the No. 1 connecting conduit port (10) and the No. 2 connecting conduit port (12), the positioning block (95) and the connection isolation block (11) An installation button is arranged between the two, and the outer surface of the lower end of the positioning and installation block (95) is detachably connected to the middle outer surface of the connection isolation block (11) through the installation button. 7. A catheter for clinical endovascular interventional therapy according to claim 1, characterized in that: the inner diameter of the movable slip ring (31) is smaller than the outer diameter of the filling tube (1), and the movable slip ring (31) ) is movably connected with the middle outer surface of the filling tube (1). 8. A catheter for clinical endovascular interventional therapy according to claim 1, characterized in that: the interior of the expandable balloon (4) is composed of alternating valley peaks and valley bottoms, and the drug injection inner tube A straight rod is arranged between (61) and the expansion sleeve (5).

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