Percutaneous implantable intracardiac perfusion system
By designing a percutaneous implantable intracardiac perfusion system, using vascular sheath and double-lumen microcatheters to enter the pericardial cavity, combining syringes and spiral injection core needles to inject drugs into the ventricular wall, the lack of targets for drug administration routes in the prior art is solved. The problems of tropism and inaccurate injection improve the retention time and treatment efficiency of the drug.
Patent Information
- Application Number
- CN202411432505.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-01-10
AI Technical Summary
The existing drug administration routes lack targeting, resulting in short drug retention time in specific areas, insufficient accumulation amount, and large non-specific distribution, and the inability to accurately adjust the drug speed and dosage, resulting in weakening of the drug efficacy and more side effects.
A percutaneous implantable intracardiac perfusion system is designed, including a vascular sheath, an outer canal, a double-lumen microcatheter, a syringe and a spiral injection inner core needle. The pathway is established through the vascular sheath, and the double-lumen microcatheter enters the pericardial cavity, using a syringe and spiral injection of inner core needles inject drugs into the ventricular wall to reduce the risk of perforation and rupture of the chamber wall.
Improves the accuracy and treatment efficiency of drug injections, reduces the risk of perforation and rupture of the chamber wall, and enhances the retention time and accumulation of drug in specific areas.
Smart Images
Figure CN119279711A_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 intracardiac 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 percutaneously implantable intracardiac perfusion system, which comprises:
[0004] Vascular sheath, outer cannula, double-lumen microcatheter, syringe, spiral injection core needle;
[0005] The vascular sheath and the syringe are connected via the outer sleeve;
[0006] The double-lumen microcatheter is installed inside the outer sleeve;
[0007] The spiral injection inner core needle is arranged inside the double-lumen micro-catheter, and one end of the spiral injection inner core needle extends into or out of the double-lumen micro-catheter.
[0008] In the above-mentioned percutaneously implantable intracardiac perfusion system, the outer sleeve comprises: a tube body and a first direction adjustment handle; the first direction adjustment handle is installed on the outer wall of the tube body.
[0009] The above-mentioned percutaneously implantable intracardiac perfusion system, wherein the double-lumen microcatheter includes: a second direction adjustment handle, an outer tube body and an inner tube body; the outer tube body matches the shape of the tube body, the outer tube body is installed inside the tube body, the second 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 spiral injection inner core needle is arranged between the outer tube body and the inner tube body.
[0010] The above-mentioned percutaneously implantable intracardiac perfusion system, wherein the syringe includes: a syringe, a push rod and a piston, one end of the syringe has an output end, 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, and one end of the push rod extends into the interior of the syringe through the opening and is installed on the piston.
[0011] In the above-mentioned percutaneously implantable intracardiac perfusion system, the outer diameters of the tube body and the outer tube body at one end close to the syringe gradually increase in a direction toward the syringe.
[0012] In the above-mentioned percutaneously implantable intracardiac perfusion system, the outer wall of the inner tube body is mounted on the inner wall of the outer tube body.
[0013] The above-mentioned percutaneously implantable intracardiac perfusion system, wherein the spiral injection inner core needle comprises: a spiral needle head and an inner core body, one end of the spiral needle head is installed on one end of the inner core body, one end of the spiral needle head is connected to the inner core body, and the outer diameter of the other end of the inner core body is gradually increased in the direction away from the inner core body, and the spiral needle head extends into or out of the inner tube body.
[0014] Compared with the prior art, the above technical solution has the following positive effects:
[0015] Through the application of the present invention, a percutaneously implantable intracardiac perfusion system is provided, which establishes a pathway through a vascular sheath and enters the pericardial cavity through a double-lumen microcatheter to select a desired position and inject medicine through a syringe. The spiral injection core needle is used for ventricular wall injection, reducing the risk of ventricular wall perforation and rupture caused by ventricular wall injection, thereby improving treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of a percutaneously implantable intracardiac perfusion system of the present invention.
[0017] Figure 2 Schematic diagram of the outer sleeve in the present invention.
[0018] Figure 3 Schematic diagram of the double-lumen microcatheter of the present invention.
[0019] Figure 4 It is a side view of the double-lumen microcatheter of the present invention.
[0020] Figure 5 It is a schematic diagram of the spiral injection core needle in the present invention.
[0021] Figure 6 It is a schematic diagram of the spiral pillow in the present invention.
[0022] Figure 7 Schematic diagram of the microballoon catheter of the present invention.
[0023] Figure 8 It is a schematic diagram of the anchor guide wire in the present invention.
[0024] 1. Vascular sheath; 2. Double-lumen microcatheter; 3. Outer sleeve; 4. Second direction adjustment handle; 5. Outer tube body; 6. Inner tube body; 7. Injection tube; 8. Piston; 9. Push rod; 10. Tube body; 11. First direction adjustment handle; 12. Spiral injection core needle; 13. Spiral needle head; 14. Core body; 15. Microballoon catheter; 16. Anchor guide wire. DETAILED DESCRIPTION
[0025] 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.
[0026] 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.
[0027] like Figures 1 to 8 As shown, a percutaneously implantable intracardiac perfusion system of a preferred embodiment is shown, comprising: a vascular sheath 1, an outer sleeve 3, a double-lumen microcatheter 2, a syringe, and a spiral injection core needle 12.
[0028] The vascular sheath 1 and the syringe are connected through a double-lumen microcatheter 2; the double-lumen microcatheter 2 is installed inside the outer sleeve 3; the spiral injection core needle 12 is arranged inside the double-lumen microcatheter 2, and one end of the spiral injection core needle 12 extends into or out of the other end of the double-lumen microcatheter 2.
[0029] During actual use, a passage is established through the vascular sheath 1, and the pericardial cavity is entered through the double-lumen microcatheter 2 to select the required position and inject the medicine through a syringe. The spiral injection core needle 12 is used for ventricular wall injection to reduce the risk of ventricular wall perforation and rupture caused by ventricular wall injection, thereby improving treatment efficiency.
[0030] In other embodiments, a microballoon catheter 15 formed by connecting a balloon and a main body may be provided inside the double-lumen microcatheter 2 for blocking drug loss in the coronary venous system, or an anchor guidewire 16 formed by connecting a guidewire and a main body may be provided for intraventricular fixation.
[0031] The present invention also has the following implementation modes based on the above:
[0032] Furthermore, a percutaneously implantable intracardiac perfusion system is provided, wherein the outer sleeve 3 comprises: a tube body 10 and a first direction adjustment handle 11 ; the first direction adjustment handle 11 is installed on the outer wall of the tube body 10 .
[0033] Further, a percutaneously implantable intracardiac perfusion system, wherein the double-lumen microcatheter 2 comprises: a second direction adjustment handle 4, an outer tube body 5 and an inner tube body 6, the outer tube body 5 matches the shape of the tube body 10, the outer tube body 5 is installed inside the tube body 10, the second 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, the other end of the inner tube body 6 is connected to the syringe, and the spiral injection inner core needle 12 is arranged between the outer tube body 5 and the inner tube body 6. Specifically, the first direction handle 11 and the second direction handle 4 are located at the same position, the first direction handle 11 covers the second direction handle 4, and the directions of the outer tube 3 and the double-lumen microcatheter 2 are adjusted by the first direction handle 11 and the second direction handle 4.
[0034] Furthermore, a percutaneously implantable intracardiac perfusion system is provided, wherein the syringe comprises: a syringe 7, a push rod 9 and a piston 8, wherein one end of the syringe 7 has an output end, the output end is connected to the inner tube body 6, the other end of the syringe 7 is open, the piston 8 is slidably installed in the syringe 7, and one end of the push rod 9 extends into the interior of the syringe 7 through the opening and is installed on the piston 8.
[0035] Further, a percutaneously implantable intracardiac perfusion system is provided, wherein the outer diameter of the end of the tube body 10 and the outer tube body 5 close to the syringe gradually increases in the direction of the syringe. Further, the outer diameter of the other end of the tube body 10 and the outer tube body 5 gradually increases in the direction of the syringe, so that the tube body 10 and the outer tube body 5 are conveniently sleeved on the output end of the syringe, thereby facilitating the delivery of medicine.
[0036] Further, a percutaneously implantable intracardiac 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. Specifically, the outer tube body 5 adopts a controllable bending catheter, and the inner tube body 6 adopts a controllable bending double-lumen microcatheter 2, which facilitates the adjustment of the double-lumen microcatheter 2. Furthermore, the outer wall of the inner tube body 6 is mounted on the inner wall of the outer tube body 5, which facilitates the insertion of the spiral injection inner core needle 12.
[0037] Further, a percutaneously implantable intracardiac perfusion system, wherein the spiral injection inner core needle 12 comprises: a spiral needle head 13 and an inner core body 14, one end of the spiral needle head 13 is mounted on one end of the inner core body 14, one end of the spiral needle head 13 is connected to the inner core body 14, the outer diameter of the other end of the inner core body 14 is gradually increased in the direction away from the inner core body 14, and the spiral needle head 13 extends into or out of the inner tube body 6. Specifically, the spiral inner core needle is used for ventricular wall injection to reduce the risk of ventricular wall perforation and rupture caused by ventricular wall injection.
[0038] 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 intracardiac perfusion system, characterized in that: include: Vascular sheath, outer cannula, double-lumen microcatheter, syringe, spiral injection core needle; The vascular sheath and the syringe are connected via the outer sleeve; The double-lumen microcatheter is installed inside the outer sleeve; The spiral injection inner core needle is arranged inside the double-lumen micro-catheter, and one end of the spiral injection inner core needle extends into or out of the double-lumen micro-catheter.
2. A percutaneously implantable intracardiac perfusion system according to claim 1, characterized in that: The outer sleeve comprises: a tube body and a first direction adjustment handle; the first direction adjustment handle is installed on the outer wall of the tube body.
3. A percutaneously implantable intracardiac perfusion system according to claim 2, characterized in that: The double-lumen microcatheter includes: a second direction adjustment handle, an outer tube body and an inner tube body; the outer tube body matches the shape of the tube body, the outer tube body is installed inside the tube body, the second 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 spiral injection inner core needle is arranged between the outer tube body and the inner tube body.
4. A percutaneously implantable intracardiac 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.
5. A percutaneously implantable intracardiac perfusion system according to claim 1, characterized in that: The outer diameters of the tube body and the outer tube body at one end close to the syringe gradually increase in a direction toward the syringe.
6. A percutaneously implantable intracardiac 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.
7. A percutaneously implantable intracardiac perfusion system according to claim 1, characterized in that: The spiral injection inner core needle includes: a spiral needle head and an inner core body, one end of the spiral needle head is installed on one end of the inner core body, one end of the spiral needle head is connected to the inner core body, and the outer diameter of the other end of the inner core body is gradually increased in the direction away from the inner core body, and the spiral needle head extends into or out of the inner tube body.