Percutaneous implantable pericardial cavity perfusion system
By designing a pericardial perfusion system in the design of a pericardial perfusion system, using vascular sheath and dual-lumen microcatheters to enter the pericardial lumen, combined with precise injection of syringe and guidewire, the lack of targeting and control of drug administration routes in the prior art is solved. The problem has improved the treatment efficiency and the accumulation of drugs, and reduced side effects.
Patent Information
- Application Number
- CN202411432504.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2024-12-24
AI Technical Summary
The existing drug administration routes lack targeting, making it difficult to accurately adjust the drug speed and dosage in specific areas, resulting in weakening of the drug efficacy, more side effects, and difficult to control the blood drug concentration and dosage.
Design a percutaneous implantable pericardial perfusion system, including a vascular sheath, a double-lumen microcatheter, a syringe and a guidewire, establish a path through the vascular sheath, and use a double-lumen microcatheter to enter the pericardial lumen, combining the directional shank and guidewire Adjust the position and use a syringe to inject drugs to improve treatment efficiency.
It realizes accurate injection of drugs in the pericardial cavity, improves treatment efficiency, enhances the targeting and accumulation of drugs, reduces side reactions, and better controls the blood drug concentration and dosage.
Smart Images
Figure CN119174637A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices and the like, and in particular to a percutaneously implantable pericardial cavity perfusion system. Background Art
[0002] At present, the routes of drug administration usually include oral administration, buccal administration, intramuscular injection, intravenous injection, subcutaneous injection, rectal administration, nebulization, local infiltration, etc. Intracardiac, thoracic and abdominal injections are mostly performed by puncture needles and direct percutaneous puncture. Intracoronary injection is a temporary medication during surgery due to changes in the condition. The medication route lacks targeting, the drug retention time in a specific area is short, the accumulation amount is insufficient, and there is a lot of non-specific distribution. It is impossible to accurately adjust the medication speed and dosage as required, and it is impossible to ensure effective blood drug concentration and ideal trough-peak ratio. Therefore, the drug efficacy is weakened and there are many side effects. Summary of the invention
[0003] In view of this, in order to solve the above problems, the object of the present invention is to provide a percutaneous implantable pericardial cavity perfusion system, which includes:
[0004] Vascular sheaths, double-lumen microcatheters, syringes, and guidewires;
[0005] The vascular sheath and the syringe are connected via the double-lumen microcatheter;
[0006] The guide wire is installed inside the double-lumen microcatheter;
[0007] Among them, the double-lumen microcatheter includes: a direction adjustment handle, an outer tube body and an inner tube body, the direction adjustment handle is installed on the outer wall of the outer tube body, the inner tube body is installed inside the outer tube body, one end of the inner tube body is connected to the outer wall of the vascular sheath, the other end of the inner tube body is connected to the syringe, and the guide wire is installed between the inner tube body and the outer tube body.
[0008] The above-mentioned percutaneously implantable pericardial cavity perfusion system, wherein the syringe includes: an injection tube, a push rod and a piston, one end of the injection tube has an output end, the output end is connected to the inner tube body, the other end of the injection tube is open, the piston is slidably installed inside the injection tube, and one end of the push rod extends into the interior of the injection tube through the opening and is installed on the piston.
[0009] In the above-mentioned percutaneously implantable pericardial cavity perfusion system, the outer diameter of the other end of the outer tube body is gradually increased in a direction away from the outer tube body.
[0010] In the above-mentioned percutaneously implantable pericardial cavity perfusion system, the guide wire is arranged in a "J" shape.
[0011] In the above-mentioned percutaneously implantable pericardial cavity perfusion system, the outer wall of the inner tube body is installed on the inner wall of the outer tube body.
[0012] Compared with the prior art, the above technical solution has the following positive effects:
[0013] Through the application of the present invention, a percutaneously implantable pericardial cavity perfusion system is provided, a passage is established through a vascular sheath, and the pericardial cavity is entered through a double-lumen microcatheter, so as to select a required position and inject medicine through a syringe, thereby improving treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The figure is an overall schematic diagram of a percutaneously implantable pericardial cavity perfusion system of the present invention.
[0015] Figure 2 Schematic diagram of the double-lumen microcatheter of the present invention.
[0016] Figure 3 It is a side view of the double-lumen microcatheter of the present invention.
[0017] Figure 4 It is a schematic diagram of the guide wire in the present invention.
[0018] 1. Vascular sheath; 2. Double-lumen microcatheter; 3. Guidewire; 4. Direction adjustment handle; 5. Outer tube body; 6. Inner tube body; 7. Injection tube; 8. Piston; 9. Push rod. DETAILED DESCRIPTION
[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations, but they are not intended to limit the present invention.
[0020] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical contents.
[0021] like Figures 1 to 4As shown, a percutaneously implantable pericardial cavity perfusion system of a preferred embodiment is shown, which includes: a vascular sheath 1, a double-lumen microcatheter 2, a syringe and a guide wire 3, the vascular sheath 1 and the output end of the syringe are connected through the double-lumen microcatheter 2, and the guide wire 3 is installed inside the double-lumen microcatheter 2; wherein the double-lumen microcatheter 2 includes: a direction adjustment handle 4, an outer tube body 5 and an inner tube body 6, the direction adjustment handle 4 is installed on the outer wall of the outer tube body 5, the inner tube body 6 is installed inside the outer tube body 5, one end of the inner tube body 6 is connected to the outer wall of the vascular sheath 1, and the other end of the inner tube body 6 is connected to the syringe, and the guide wire 3 is installed between the inner tube body 6 and the outer tube body 5.
[0022] During actual use, a passage is established through the vascular sheath 1, and the pericardial cavity is entered through the double-lumen microcatheter 2. The double-lumen microcatheter 2 is adjusted by the cooperation of the direction adjustment handle 4 and the guide wire 3 to select the required injection position and inject the medicine through the syringe to improve the treatment efficiency.
[0023] The present invention also has the following implementation modes based on the above:
[0024] Further, a percutaneous implantable pericardial cavity perfusion system, wherein the syringe comprises: an injection tube 7, a push rod 9 and a piston 8, one end of the injection tube 7 has an output end, the output end is connected to the other end of the inner tube body 6, the other end of the injection tube 7 is open, the piston 8 is slidably installed inside the injection tube 7, and one end of the push rod 9 extends into the injection tube 7 through the opening and is installed on the piston 8. Specifically, the guide wire 3 adjusts the position of the double-lumen microcatheter 2 through the space formed between the inner wall of the outer tube body 5 and the outer wall of the inner tube body 6, and the syringe injects the medicine into the pericardial cavity through the inner tube body 6 to complete the drug delivery.
[0025] Furthermore, a percutaneously implantable pericardial cavity perfusion system is provided, wherein the outer diameter of the other end of the outer tube body 5 is gradually increased in a direction away from the outer tube body 5. Specifically, the outer diameter of the other end of the outer tube body 5 is gradually increased in a direction away from the outer tube body 5, so that the outer tube body 5 is conveniently sleeved on the output end of the syringe, thereby facilitating drug delivery.
[0026] Further, a percutaneous implantable pericardial cavity perfusion system is provided, wherein the guide wire 3 is arranged in a "J" shape. Specifically, the guide wire 3 is arranged in a "J" shape, which facilitates the guide wire 3 to extend into the vascular sheath 1 to adjust the drug delivery position.
[0027] Further, a percutaneous implantable pericardial cavity perfusion system is provided, wherein the outer wall of the inner tube body 6 is mounted on the inner wall of the outer tube body 5. Further, the outer wall of the inner tube body 6 is mounted on the inner wall of the outer tube body 5, so as to facilitate the insertion of the guide wire 3.
[0028] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.
Claims
1. A percutaneously implantable pericardial cavity perfusion system, characterized in that: include: Vascular sheaths, double-lumen microcatheters, syringes, and guidewires; The vascular sheath and the syringe are connected via the double-lumen microcatheter; The guide wire is installed inside the double-lumen microcatheter; Among them, the double-lumen microcatheter includes: a direction adjustment handle, an outer tube body and an inner tube body, the direction adjustment handle is installed on the outer wall of the outer tube body, the inner tube body is installed inside the outer tube body, one end of the inner tube body is connected to the outer wall of the vascular sheath, the other end of the inner tube body is connected to the syringe, and the guide wire is installed between the inner tube body and the outer tube body.
2. A percutaneous implantable pericardial cavity perfusion system according to claim 1, characterized in that: The syringe includes: a syringe, a push rod and a piston. One end of the syringe has an output end, and the output end is connected to the inner tube body. The other end of the syringe is open. The piston is slidably installed inside the syringe. One end of the push rod extends into the interior of the syringe through the opening and is installed on the piston.
3. A percutaneous implantable pericardial cavity perfusion system according to claim 1, characterized in that: The outer diameter of the other end of the outer tube body is gradually increased in a direction away from the outer tube body.
4. A percutaneous implantable pericardial cavity perfusion system according to claim 1, characterized in that: The guide wire is arranged in a "J" shape.
5. A percutaneous implantable pericardial cavity perfusion system according to claim 1, characterized in that: The outer wall of the inner tube is mounted on the inner wall of the outer tube.