Double-cavity perfusion thrombolysis micro-catheter capable of realizing uniform administration
By designing a dual-lumen perfusion thrombolysis microcatheter, with a drug delivery cavity and release port in the outer tube and a guidewire cavity in the inner tube, the problem of uneven thrombolysis in existing microcatheters is solved. This achieves uniform drug delivery and thrombus dissolution in the presence of the guidewire, improving the safety and efficiency of the procedure.
Patent Information
- Application Number
- CN202422816450.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing microcatheters cannot achieve uniform thrombolysis in thrombotic interventional procedures, posing safety risks, especially since single-lumen microcatheter thrombolysis cannot be performed before the guidewire is withdrawn.
A dual-lumen perfusion thrombolytic microcatheter was designed, comprising an outer tube and an inner tube. The outer tube has a drug delivery lumen and a drug release port, while the inner tube has a guidewire lumen, allowing the guidewire and drug to enter the blood vessel simultaneously. The drug is evenly distributed through the release port to dissolve the thrombus.
This method enables uniform drug delivery and effective thrombus dissolution in the presence of a guidewire, improving surgical safety and thrombolysis efficiency.
Smart Images
Figure CN223586005U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to double -cavity perfusion thrombolytic microcatheter technical field especially relates to a uniform dosing's double -cavity perfusion thrombolytic microcatheter. BACKGROUND
[0002] The cardiology department, namely the cardiovascular internal medicine department, is a clinical department set in the large internal medicine department of various levels of hospitals for diagnosing and treating cardiovascular diseases, and treats diseases including angina pectoris, hypertension, sudden death, arrhythmia, heart failure, premature beat, arrhythmia, myocardial infarction, cardiomyopathy, myocarditis, acute myocardial infarction and other cardiovascular diseases.
[0003] The existing cardiologist needs to use a microcatheter when performing thrombus interventional operation treatment on a patient, and the double -cavity microcatheter existing on the market does not have the function of uniform thrombolysis in the coronary artery, or there are some single -cavity thrombolytic catheters, but they have serious safety problems, because in the process of emergency PCI operation, the guide wire is the lifeline of the patient, we cannot withdraw the guide wire and then perform thrombolysis through the single -cavity microcatheter, so we need to place the guide wire in the blood vessel while giving medicine thrombolysis, therefore we provide a double -cavity perfusion thrombolytic microcatheter for uniform dosing. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the shortcoming that the microcatheter for thrombus interventional operation treatment cannot perform uniform thrombolysis in the prior art, and provides a double -cavity perfusion thrombolytic microcatheter for uniform dosing.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double -cavity perfusion thrombolytic microcatheter for uniform dosing, comprising: a main body mechanism, the main body mechanism includes an outer tube, a medicine delivery cavity is formed in the inside of the outer tube, a medicine release hole is formed in the outer surface of the outer tube, an inner tube is sleeved in the inside of the outer tube, the inner tube is fixedly connected with the outer tube, a guide wire cavity is formed in the inside of the inner tube.
[0006] As a preferred implementation form, one end of the outer tube is provided with a connecting pipe, and the connecting pipe is fixedly connected with the outer tube.
[0007] As a preferred implementation form, one side of the connecting pipe is provided with a connector, and the connecting pipe is sleeved with a metal push rod in the inside.
[0008] As a preferred implementation form, the metal push rod is fixedly connected with the connecting pipe, and the metal push rod is sleeved in the inside of the connector.
[0009] As a preferred implementation form, the metal push rod is fixedly connected with the connector, and one end of the outer tube is provided with a tapered head.
[0010] As a preferred implementation, the conical head is fixedly connected with the outer tube, and the conical head is sleeved on the outer surface of the inner tube.
[0011] As a preferred implementation, the conical head is fixedly connected with the outer tube, and the conical head is sleeved on the outer surface of the inner tube.
[0012] Compared with the prior art, the utility model has the advantages and positive effects that:
[0013] The utility model discloses, through setting up main body mechanism, make the dual -lumen perfusion thrombolytic microcatheter for the intervention operation can when using supply guide wire and medicine and fill in simultaneously, make the guide wire when entering patient's blood vessel, thrombolytic medicine can be released in time, reach the purpose of dissolving thrombus, and further will not because twitching guide wire and cause the influence to patient's life safety, and set up the outer tube, and the outer tube is fixedly sleeved with the inner tube in, thereby the microcatheter forms the structure of double -lumen double -tube, and the medicine release hole that the outer tube is set up, make the medicine of perfusion can evenly enter and spread in the thrombus place in the blood vessel, and further dissolve thrombus. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a perspective view of the dual -lumen perfusion thrombolytic microcatheter of even dosing provided by the utility model.
[0015] Figure 2 It is a perspective view of the dual -lumen perfusion thrombolytic microcatheter of even dosing provided by the utility model.
[0016] Figure 3 It is the close -up view of A area of the dual -lumen perfusion thrombolytic microcatheter of even dosing provided by the utility model.
[0017] Figure 4 It is a perspective view of the dual -lumen perfusion thrombolytic microcatheter of even dosing provided by the utility model.
[0018] Figure 5 It is a perspective view of the dual -lumen perfusion thrombolytic microcatheter of even dosing provided by the utility model.
[0019] LEGEND:
[0020] 1, main body mechanism, 11, outer tube, 12, medicine delivery cavity, 13, medicine release hole, 14, inner tube,
[0021] 15, guide wire cavity, 16, connecting pipe, 17, joint, 18, metal push rod, 19, conical head. DETAILED DESCRIPTION
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] like Figures 1-5 As shown, this utility model provides a technical solution: a dual-lumen perfusion thrombolytic microcatheter for uniform drug delivery, comprising: a main body 1, the main body 1 including an outer tube 11, a drug delivery cavity 12 is provided inside the outer tube 11, a drug release hole 13 is provided on the outer surface of the outer tube 11, an inner tube 14 is sleeved inside the outer tube 11, the inner tube 14 is fixedly connected to the outer tube 11, and a guide wire cavity 15 is provided inside the inner tube 14.
[0025] In this embodiment, by setting up the main body 1, medical staff can dissolve thrombi while inserting the guidewire during vascular interventional surgery, thereby creating a channel for other medical devices. An outer tube 11 is set up, and a drug delivery chamber 12 is opened in the outer tube 11. The drug solution delivered by the connecting tube 16 can be conducted through the drug delivery chamber 12 and finally delivered to the drug release hole 13. The drug release hole 13 is evenly distributed on the outer tube 11, so the drug in the outer tube 11 can also be evenly delivered and dispersed through the drug release hole 13 to achieve a better thrombus dissolution effect. In addition, an inner tube 14 is set up and placed inside the outer tube 11 and fixedly connected to the outer tube 11. Thus, the microcatheter forms a double tube double lumen structure. A guidewire lumen 15 is opened in the inner tube 14, so that the guidewire can pass through the guidewire lumen 15 and enter the patient's blood vessel. At the same time, one end of the inner tube 14 is inclined, which makes it easier for medical staff to insert the guidewire into the guidewire lumen 15.
[0026] Example 2
[0027] like Figures 1-5 As shown, one end of the outer tube 11 is provided with a connecting tube 16, which is fixedly connected to the outer tube 11. One side of the connecting tube 16 is provided with a connector 17. A metal push rod 18 is sleeved inside the connecting tube 16 and is fixedly connected to the connecting tube 16. The metal push rod 18 is sleeved inside the connector 17 and is fixedly connected to the connector 17. One end of the outer tube 11 is provided with a tapered head 19, which is fixedly connected to the outer tube 11. The tapered head 19 is sleeved on the outer surface of the inner tube 14 and is fixedly connected to the inner tube 14.
[0028] In this embodiment, the connecting tube 16 can be used to transmit the drug solution, and the connector 17 can be used to connect with medical devices such as syringes so that the drug solution can be smoothly injected. In addition, a metal push rod 18 is provided, and the metal push rod 18 is made of metal so that the metal push rod 18 can be used for convenient pushing. It is used in conjunction with the conical head 19 so that the outer tube 11 can be more easily inserted into the patient's blood vessels.
[0029] Working principle:
[0030] like Figures 1-5 As shown, when using this invention, if interventional surgery is required for the patient, the conical head 19 can be aligned with the incision on the blood vessel, and the metal pusher 18 can be used to slowly drive the entire microcatheter into the patient's blood vessel. The entry position is controlled according to the actual situation. Then, the guidewire is inserted from the inner tube 14, and the end of the guidewire is slowly inserted into the guidewire lumen 15 opened on the inner tube 14. Then, the guidewire is continuously pushed until it reaches the location of the thrombus. At this time, the syringe containing the drug is connected to the connector 17. When the syringe pushes the drug, the drug will pass through the connector 17, the metal pusher 18 and the connecting tube 16, and finally enter the drug delivery chamber 12 opened on the outer tube 11. The drug delivery chamber 12 is then transported to the drug release hole 13. At this time, the thrombolytic drug solution will be evenly distributed at the thrombus through the drug release hole 13, dissolving the thrombus. In conjunction with the guidewire, the thrombus is completely dissolved, thereby establishing a treatment channel.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A dual lumen perfusion thrombolytic microcatheter for uniform drug delivery, comprising: Include: The main body mechanism (1) comprises an outer tube (11), the inside of the outer tube (11) is provided with a drug delivery cavity (12), the outer surface of the outer tube (11) is provided with a drug release hole (13), the inside of the outer tube (11) is sleeved with an inner tube (14), the inner tube (14) is fixedly connected with the outer tube (11), the inside of the inner tube (14) is provided with a guide wire cavity (15).
2. The dual lumen thrombolytic microcatheter of claim 1, wherein: One end of the outer tube (11) is provided with a connecting pipe (16), and the connecting pipe (16) is fixedly connected with the outer tube (11).
3. The dual lumen thrombolysis microcatheter of claim 2, wherein: One side of the connecting pipe (16) is provided with a connector (17), and the inside of the connecting pipe (16) is sleeved with a metal push rod (18).
4. The dual lumen thrombolysis microcatheter of claim 3, wherein: The metal push rod (18) is fixedly connected with the connecting pipe (16), and the metal push rod (18) is sleeved in the inside of the connector (17).
5. The dual lumen thrombolysis microcatheter of claim 4, wherein: The metal push rod (18) is fixedly connected with the connector (17), and one end of the outer tube (11) is provided with a tapered head (19).
6. The dual lumen thrombolysis microcatheter of claim 5, wherein: The tapered head (19) is fixedly connected with the outer tube (11), and the tapered head (19) is sleeved on the outer surface of the inner tube (14).
7. The dual lumen thrombolysis microcatheter of claim 6, wherein: The tapered head (19) is fixedly connected with the inner tube (14).