Atrial septostomy device

Abstract

The utility model provides a room partition stoma ware belongs to surgical instrument technical field, its structure includes right atrium access sheath pipe and spiral needle, the intraluminal of right atrium access sheath pipe is provided with spiral needle, the tail end fixed connection of spiral needle has the rotation of spiral needle's advance composite operating part; The main body section of spiral needle adopts single helix; Its needle head is located the front end terminal pinaculum of maximum diameter; The annular radio frequency ablation electrode is set up along the front pipe mouth of right atrium access sheath pipe; The tail end of rotation advance composite operating part and right atrium access sheath pipe all extend out of the body along the heart access system. The utility model discloses simple surgical operation with spiral needle, easy to master, easy to control, high fault tolerance, maximum limit reduced puncture injury's risk, effectively improved the security of operation, simplified the operation process, shortened the operation time, reduced the operation complexity.

Description

Technical Field

[0001] This utility model relates to the field of surgical instrument technology, specifically to an atrial septal ostomy device. Background Technology

[0002] Generally, traditional methods for transseptal puncture require a complex system involving needle / sheath combinations, pressure monitoring, angiography confirmation, radiofrequency energy, or mechanical puncture. The procedures are cumbersome, rely heavily on the operator's experience, and are difficult to perform.

[0003] Traditional puncture needles typically use thin, rigid needles. After penetrating the interatrial septum, the sharp needle tip is difficult to control and is highly susceptible to accidental puncture of the left atrial posterior wall or other tissues (such as the aortic root) due to cardiac pulsation, operational errors, or patient movement. This is one of the most worrying complications of traditional interatrial septal puncture, potentially leading to serious consequences such as cardiac tamponade. Summary of the Invention

[0004] The technical objective of this invention is to address the shortcomings of existing technologies and provide an atrial septal ostomy device.

[0005] The technical solution of this utility model is implemented in the following way: the atrial septal ostomy device of this utility model includes a right atrial inlet sheath and a spiral needle. A spiral needle is installed inside the lumen of the right atrial access sheath, and a spiral needle rotation and propulsion compound is fixedly connected to the tail end of the spiral needle. The main body of the spiral needle is a single spiral; its tip is located at the end of the spiral tip. A ring-shaped radiofrequency ablation electrode is placed at the anterior opening of the right atrial access sheath. Both the rotary propulsion composite manipulator and the tail end of the right atrial access sheath extend out of the body along the cardiac access system.

[0006] The rotary propulsion composite operating component uses an operating lever or an anti-torsion synchronization spring.

[0007] The end of the spiral needle is fixedly welded to the front end of the anti-torsion synchronous spring, and the central axes of the two are set coaxially.

[0008] The ring-shaped radiofrequency ablation electrode is connected to the radiofrequency ablation device outside the body via a wire laid inside the sheath of the right atrium.

[0009] The beneficial effects of this utility model compared with the prior art are: This novel atrial septal stoma device integrates atrial septal puncture and shunt delivery on one side. During surgery, the device does not need to penetrate the atrial septum; the spiral needle itself is designed for safe penetration, directly replacing the traditional dedicated puncture needle and complex puncture procedure. This significantly simplifies the surgical procedure, shortens the operation time, and reduces the potential error risks associated with multi-step procedures.

[0010] The spiral needle design makes its penetration action more gradual and controllable. Instead of relying on the instantaneous impact force of traditional puncture needles, it gradually enters the tissue by rotating the spiral needle, and achieves anchoring and pulling back on the tissue.

[0011] After the spiral needle penetrates the atrial septum, its spiral structure rotates and feeds, primarily dilating the puncture site rather than continuing to advance sharply forward as in traditional puncture needles. This significantly reduces the risk of accidental penetration of the left atrial posterior wall.

[0012] After the spiral needle penetrates the interatrial septum, the tip of the needle body immediately and stably anchors itself on the septal tissue. The needle tip only rotates within a circumferential movement during axial advancement, without any uncontrolled movement. The stable motion output of the spiral needle is unmatched by the simple linear motion of a puncture needle.

[0013] The spiral needle procedure is simple, easy to master, easy to control, and has a high tolerance for error. It minimizes the risk of puncture injury, effectively improves surgical safety, simplifies the surgical procedure, shortens the surgical time, and reduces the complexity of the operation.

[0014] This invention utilizes radiofrequency ablation to achieve a minimally invasive effect. It only requires a thin catheter inserted through a cardiac access system, typically via the femoral vein, femoral artery, or jugular vein, to reach the heart. This results in minimal intracardiac trauma, less patient discomfort, faster recovery, and shorter hospital stays.

[0015] This invention employs radiofrequency ablation, combined with a spiral needle to extract atrial septal tissue for atrial septal stoma creation. Targeted ablation ensures energy is applied only to the target tissue, minimizing damage to surrounding normal myocardium. Furthermore, the stoma size can be controlled according to the extent of extraction.

[0016] The room-septal stoma device of this utility model is reasonably designed, simple in structure, safe and reliable, easy to use and easy to maintain, and has great value for promotion and use. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of the structure of this utility model in the right atrial access state; Appendix Figure 2 This is a schematic diagram of the structure of the present invention in the form of spiral puncture of the interatrial septum; Appendix Figure 3This is a schematic diagram of the state structure of the spiral needle pulling the atrial septum to a suitable position for radiofrequency electrode ablation of the stoma atrial septum according to this utility model; Appendix Figure 4 This is a schematic diagram of the structure of the present invention, showing the completion and preparation for detachment of the atrial septal stoma.

[0018] The markings in the attached diagram represent: 1. Right atrial access sheath; 2. Spiral needle. 3. Rotary propulsion composite operating component, 4. Ring-shaped radiofrequency ablation electrode, 5. Cardiac access system, 6. Room spacing, 7. Ostomy. Detailed Implementation

[0019] The following is a detailed description of the room partition ostomy device of this utility model with reference to the accompanying drawings.

[0020] As shown in the attached diagram, the atrial septal ostomy device of this invention comprises a right atrial inlet sheath and a spiral needle. A spiral needle is installed inside the lumen of the right atrial access sheath, and a spiral needle rotation and propulsion compound is fixedly connected to the tail end of the spiral needle. The main body of the spiral needle is a single spiral; its tip is located at the end of the spiral tip. A ring-shaped radiofrequency ablation electrode is placed at the anterior opening of the right atrial access sheath. Both the rotary propulsion composite manipulator and the tail end of the right atrial access sheath extend out of the body along the cardiac access system.

[0021] The rotary propulsion composite operating component uses an operating lever or an anti-torsion synchronization spring.

[0022] The end of the spiral needle is fixedly welded to the front end of the anti-torsion synchronous spring, and the central axes of the two are set coaxially.

[0023] The ring-shaped radiofrequency ablation electrode is connected to the radiofrequency ablation device outside the body via a wire laid inside the sheath of the right atrium.

[0024] The main body of the spiral needle uses a cylindrical spiral, a conical spiral, or a variable pitch spiral. The number of spiral turns is greater than 1, N, where N is a natural number.

[0025] This invention utilizes a radiofrequency ablation device, specifically a cardiac radiofrequency ablation device. This device involves inserting an electrode catheter into a specific location within the heart chamber via a vein or artery, releasing radiofrequency current to induce coagulative necrosis of the local endocardium and subendocardial myocardium. This interventional technique aims to block the abnormal conduction pathways and origin points of rapid arrhythmias. The radiofrequency current introduced into the heart chamber via the catheter causes damage within 1-3 mm, posing no harm to the body. Its basic equipment includes an X-ray machine, a radiofrequency ablation device, and intracardiac electrophysiological examination instruments.

Claims

1. An atrial septal ostomy device, characterized in that... Including the right atrial access sheath and spiral needle, A spiral needle is installed inside the lumen of the right atrial access sheath, and a spiral needle rotation and propulsion compound is fixedly connected to the tail end of the spiral needle. The main body of the spiral needle is a single spiral; its tip is located at the end of the spiral tip. A ring-shaped radiofrequency ablation electrode is placed at the anterior opening of the right atrial access sheath. Both the rotary propulsion composite manipulator and the tail end of the right atrial access sheath extend out of the body along the cardiac access system.

2. The atrial septal ostomy device according to claim 1, characterized in that: The rotary propulsion composite operating component uses an operating lever or an anti-torsion synchronization spring.

3. The atrial septal ostomy device according to claim 1, characterized in that: The end of the spiral needle is fixedly welded to the front end of the anti-torsion synchronous spring, and the central axes of the two are set coaxially.

4. The atrial septal ostomy device according to claim 1, characterized in that: The ring-shaped radiofrequency ablation electrode is connected to the radiofrequency ablation device outside the body via a wire laid inside the sheath of the right atrium.

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