CN215228137U

CN215228137U - High-efficiency thrombolysis catheter

Info

Publication number: CN215228137U
Application number: CN202121064408.7U
Authority: CN
Inventors: 郭涛; 王涛; 罗福全
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-12-21
Anticipated expiration: 2031-05-18

Abstract

The utility model belongs to the technical field of the catheter of dissolving the thrombus, concretely relates to high-efficient catheter of dissolving the thrombus, which comprises a pipe body, be provided with the medicine chamber in the body, the side of body is provided with the delivery outlet in a plurality of intercommunication medicine chambeies, the central line of delivery outlet is the acute angle with the contained angle of body outer wall, the front end of body is provided with preceding port, and the rear end of body is provided with the input port, the symmetry is provided with the flap on the medial surface of preceding port, it is provided with anti-reflux chamber to enclose to close between flap and the body inner wall, the opening direction in anti-reflux chamber corresponds the input port. The utility model provides a thrombolysis pipe has set up the succinct flap of structure in front port department, can guarantee the thrombolysis agent through the delivery outlet output, and the backward flow direction of the unified directional blood of delivery outlet, is favorable to thrombolysis agent and blood flow to become the laminar flow along the thrombolysis pipe, and the reinforcing thrombolysis effect has apparent practical meaning.

Description

High-efficiency thrombolysis catheter

Technical Field

The utility model relates to a dissolve bolt pipe technical field particularly, relate to high-efficient dissolve bolt pipe.

Background

In the medical field, the formation of acute thrombosis in blood vessels, whether cerebral vessels, cardiovascular vessels or peripheral vessels, has the characteristics of high morbidity, high mortality and high disability rate. Aiming at the early intravascular acute thrombosis at home and abroad, the thrombus can be taken, crushed and dissolved by medicaments through an interventional therapy method to ensure that the blood vessel is recanalized, the blood supply of tissues is recovered, and the disability rate and the death rate are reduced.

At present, the clinically adopted intravascular contact thrombolysis methods mainly include the following methods: 1. drug thrombolysis, 2. guide wire thrombolysis, 3. catheter contact thrombolysis. In the practical application process, the methods all have some technical defects: when the medicine is used for thrombolysis, the medicine cannot uniformly and quickly cover all focus parts due to embolism of blood vessels, so that the thrombolysis speed is low. In order to avoid the injury of the blood vessel wall in the guide wire thrombus breaking, the guide wire head is usually made of a softer material, so that the thrombus breaking efficiency is low. The mechanism of catheter contact thrombolysis is to directly infuse high-concentration thrombolysis medicine around thrombus through a thrombolysis catheter to dissolve the thrombus and achieve the treatment purpose. Compared with the traditional catheter embolectomy and other modes, the catheterization thrombolysis does not need general anesthesia, and the operation wound is small.

However, although some of the head ends of the thrombolytic catheters on the market are designed to be closed and prevent backflow, a guide wire needs to be additionally arranged for closing, the operation is troublesome, and the equipment cost is high. Part of thrombolytic catheters on the market at present are provided with side holes and vertical catheters; the disorderly design of partial side holes is not favorable for forming laminar flow between the thrombolytic agent and the blood stream and the thrombolytic catheter, and the thrombolytic effect is unstable.

Therefore, there is still much room for improvement in the construction of thrombolytic catheters.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-efficient thrombolysis pipe in order to solve the head end of the thrombolysis pipe on the market at present and lack succinctly safe anti-reflux structure, also can't guarantee the thrombolysis effect, has the problem in great improvement space.

High-efficient thrombolysis pipe, including the body, be provided with the medicine chamber in the body, the side of body is provided with the delivery outlet in a plurality of intercommunication medicine chambers, the central line of delivery outlet is the acute angle with the contained angle of body outer wall, the front end of body is provided with preceding port, and the rear end of body is provided with the input port, the symmetry is provided with the flap on the medial surface of preceding port, it is provided with anti-reflux chamber to enclose to close between flap and the body inner wall, the opening in anti-reflux chamber sets up towards the input port.

Furthermore, the input port is communicated with a universal butt joint.

Further, the universal butt joint is a medical luer joint.

Further, the outside of the pipe body is provided with a front marking ring and a rear marking ring, and the output port is arranged between the front marking ring and the rear marking ring.

Further, the front marking ring and the rear marking ring are both X-ray-proof metal rings.

Furthermore, a heparin coating is covered on the outer wall of the tube body between the rear marking ring and the front end of the tube body.

Further, a hydrophilic coating is covered on the outer wall of the tube body between the heparin coating and the rear end of the tube body.

Further, a flexible tip is installed at the front end of the tube body, and the front port penetrates through the middle of the flexible tip.

Further, the rear end of body corresponds the input port and is provided with the safety cover, the safety cover is connected with the lantern ring, the lantern ring cup joints in the body outside.

Further, the safety cover is funnel-shaped, and the lantern ring is fixedly connected with the bottom of the funnel-shaped safety cover.

The utility model has the advantages that:

1. the valve is arranged at the front port, so that the venous valve-like function can be realized, liquid input into the tube body from the input port can only be output through the output port, and the valve structure is generally integrally formed with the tube body without additionally installing an anti-reflux device.

2. The output port is designed in an inclined way and points to the blood backflow direction in a consistent way, which is beneficial to the thrombolytic agent and the blood flow to form laminar flow along the thrombolytic catheter and enhances the thrombolytic effect.

3. The design is simple, and the popularization and the use are convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of one embodiment of a high-efficiency thrombolytic catheter;

FIG. 2 is a schematic structural view of another embodiment of a high-efficiency thrombolytic catheter;

the attached drawings are as follows:

1. a pipe body; 2. a drug cavity; 3. an output port; 4. a front port; 6. an input port; 7. a valve; 8. an anti-reflux cavity; 9. a universal butt joint; 10. a front marker ring; 11. a rear marker ring; 12. a heparin coating; 13. a hydrophilic coating; 14. a flexible tip; 15. a protective cover; 16. a collar.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Example 1

As shown in fig. 1, this embodiment provides high-efficient thrombolysis pipe, including body 1, be provided with medicine chamber 2 in body 1, the side of body 1 is provided with a plurality of intercommunication medicine chamber 2's delivery outlet 3, the central line of delivery outlet 3 is the acute angle with the contained angle of body 1 outer wall, the front end of body 1 is provided with front port 4, and the rear end of body 1 is provided with input port 6, the symmetry is provided with two flaps 7 on the medial surface of front port 4, it is provided with anti-backflow chamber 8 to enclose between flap 7 and the body 1 inner wall, the opening of anti-backflow chamber 8 sets up towards input port 6.

Wherein, owing to set up flap 7, liquid is behind the input port entering body 1, and liquid will fill anti-reflux chamber 8 gradually, and then makes the soft flap 7 of symmetry setting extend to the center of body 1, pastes at last tightly, pastes two tight flaps 7 and will seal the pipeline in the body 1, and then seals front port 4, reaches the effect that prevents to go into the liquid of body 1 through the input port and export from front port 4, and liquid can only dash 3 exports. In addition, when the hydraulic pressure in front of the front port 4 is greater than the hydraulic pressure in the tube body 1, blood can flow into the tube body 1 from the channel between the two flaps 7 to be mixed with the thrombolytic agent, so that the hydraulic pressure is balanced, and the situation that the liquid in the tube body 1 cannot be output through the output port 3 due to the difference of the hydraulic pressure is avoided. The output port 3 adopts the design of equidirectional inclination, so that the direction of the output port 3 points to the blood backflow direction, the thrombolytic agent and the blood flow output from the output port 3 can form laminar flow along the thrombolytic conduit, and the thrombolytic effect is enhanced.

The input port 6 is communicated with a universal butt joint 9, and the universal butt joint 9 is a medical luer joint. The medical luer connector is stable in butt joint and mature in technology, and facilitates the connection of the thrombolytic catheter and supply equipment of the thrombolytic agent, such as a high-pressure micropump.

The outer side of the pipe body 1 is provided with a front marking ring 10 and a rear marking ring 11, the output port 3 is arranged between the front marking ring 10 and the rear marking ring 11, and the front marking ring 10 and the rear marking ring 11 are both X-ray-proof metal rings. The X-ray-proof metal ring can provide a marking and positioning function, so that medical personnel can conveniently penetrate the thrombolysis catheter through the thrombus during an operation, the output port 3 is accurately inserted into the thrombus, and the thrombolysis effect is ensured.

The outer wall of the tube body 1 between the rear marking ring 11 and the front end of the tube body 1 is covered with a heparin coating 12. The heparin image layer 12 can obviously reduce the incidence rate of the formation of the mural thrombus and improve the retention time in the blood vessel of the thrombolysis catheter.

The outer wall of the tube body 1 between the heparin coating 12 and the rear end of the tube body 1 is covered with a hydrophilic coating 13. The hydrophilic coating 13 can significantly reduce the friction between the thrombolytic catheter and an external device such as a guiding catheter.

The front end of the tube body 1 is provided with a flexible tip 14, and the front port 4 penetrates through the middle of the flexible tip 14. The flexible tip 14 allows the front end of the tube body 1 to smoothly pierce the thrombus.

The rear end of body 1 corresponds input port 6 and is provided with safety cover 15, safety cover 15 is connected with the lantern ring 16, the lantern ring 16 cup joints in the body 1 outside. The protective cover 15 is funnel-shaped, and the lantern ring 16 is fixedly connected with the bottom of the funnel-shaped protective cover 15. The funnel-shaped protective cover 15 can isolate the front end of the tube body 1 inserted into the human body and the rear end of the tube body 1 butted with the thrombolytic agent supply equipment, and prevent the body fluid and other foreign matters which are splashed out from the operation opening of a patient from polluting the input port 6. The lantern ring 16 can fixedly sleeve the protective cover 15 on the outer wall of the pipe body 1, and the position of the lantern ring 16 can be adjusted in a sliding mode according to actual use conditions.

The tube body 1, the closed catheter head 4, the valve 7 and the flexible tip 14 can be made of medical soft polymer materials (such as medical polyurethane) in an integrated forming mode, so that the equipment cost is reduced, and the cleanliness and the structural stability of the equipment are guaranteed.

During the actual use, set up the art mouth that supplies the thrombolytic catheter to get into on patient's health, later with thrombolytic catheter insertion patient internal arrival thrombus position, pierce flexible pointed end 14 in the thrombus, utilize preceding mark ring 10 and back mark ring 11 with delivery outlet 3 location in the thrombus, then can be through general butt joint 9 butt joint outside thrombolytic liquid supply apparatus, make delivery outlet 3 blowout thrombolytic liquid, realize the thrombolytic effect.

Example 2

As shown in fig. 2, the present embodiment is different from embodiment 1 in that: the outlet opening is oriented opposite to that of embodiment 1, and the outlet opening 3 corresponds to the rear end of the tube body 1, i.e. to the end facing the inlet opening 6.

It is worth noting that the medical staff can select the thrombolysis catheter of the embodiment 1 or the embodiment 2 according to different surgical ports of actual patients, so as to ensure that the direction of the output port 3 points to the blood backflow direction, which is beneficial to the formation of laminar flow of the thrombolysis agent and blood flow output from the output port 3 along the thrombolysis catheter, and to enhance the thrombolysis effect.

The foregoing is a more detailed description of the present invention, and it is not intended that the present invention be limited to the specific details, since modifications and variations will be apparent to those skilled in the art.

Claims

1. High-efficient thrombolysis pipe, including the body, be provided with the medicine chamber in the body, the side of body is provided with the delivery outlet in a plurality of intercommunication medicine chambers, its characterized in that, the center line of delivery outlet is the acute angle with the contained angle of body outer wall, the front end of body is provided with the front end, and the rear end of body is provided with the input port, the symmetry is provided with the flap on the medial surface of front end, it is provided with anti-reflux cavity to enclose between flap and the body inner wall, the opening of anti-reflux cavity sets up towards the input port.

2. The catheter of claim 1, wherein the input port is connected to a universal joint.

3. The highly effective thrombolytic catheter of claim 2, wherein the universal docking head is a medical luer.

4. The catheter of claim 1, wherein the catheter body is provided with a front marking ring and a rear marking ring on the outer side, and the output port is arranged between the front marking ring and the rear marking ring.

5. The highly effective thrombolytic catheter of claim 4, wherein the anterior marker ring and the posterior marker ring are each radiopaque metal rings.

6. The catheter of claim 4, wherein the outer wall of the catheter body between the rear marker ring and the front end of the catheter body is coated with heparin.

7. The catheter of claim 6, wherein the outer wall of the catheter body between the heparin coating and the rear end of the catheter body is covered with a hydrophilic coating.

8. The highly effective thrombolytic catheter of claim 1, wherein the forward end of the tubular body is fitted with a flexible tip, and the forward port extends through a middle portion of the flexible tip.

9. The efficient thrombolytic catheter of claim 1, wherein a protective cover is arranged at the rear end of the catheter body corresponding to the input port, and a lantern ring is connected to the protective cover and sleeved outside the catheter body.

10. The catheter according to claim 9, wherein the protective cover is funnel-shaped, and the collar is fixedly connected with the bottom of the funnel-shaped protective cover.