Laser ablation device for pulmonary arterial hypertension

Abstract

The utility model relates to the technical field of medical instruments, in particular to a laser ablation device for pulmonary arterial hypertension, which comprises a holding part and an ablation part, the holding part comprises a holding handle and a catheter sheath arranged in the holding handle in a sliding mode, a normal saline channel and an optical fiber channel are axially arranged in the catheter sheath in a penetrating mode, and the normal saline channel is communicated with the optical fiber channel. The ablation part comprises a normal saline conveying pipe arranged in the normal saline channel and an optical fiber arranged in the optical fiber channel, and one end of the optical fiber is connected with an external laser generator. The device is operated in a percutaneous way, the trauma is small, and the recovery is fast; a lesion area can be accurately positioned through laser, and damage to surrounding healthy tissue is reduced; multiple treatments can be performed according to the specific conditions of the patient, and the flexibility is high.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and specifically to a laser ablation device for pulmonary hypertension. Background Technology

[0002] Pulmonary arterial hypertension (PAH) is a serious cardiopulmonary disease characterized by elevated pulmonary artery pressure, leading to right heart failure and other complications. Current treatment options include pharmacological therapy (such as endothelin receptor antagonists, phosphodiesterase-5 inhibitors, and prostaglandin analogs), oxygen therapy, and lung transplantation.

[0003] However, these treatment options have certain limitations, such as:

[0004] Drug side effects: Many drug treatments can cause serious side effects, such as low blood pressure and headaches, leading to poor patient compliance.

[0005] Limited efficacy: Drug treatment is not effective for some patients and cannot cure pulmonary hypertension.

[0006] Surgical risks: Lung transplantation is an effective but extremely risky procedure, and donors are scarce.

[0007] Individual patient differences: Different patients may respond very differently to the same treatment, and there is a lack of personalized treatment plans. Utility Model Content

[0008] This invention addresses the problems of existing technologies by providing a laser ablation device for pulmonary hypertension.

[0009] The objective of this invention can be achieved through the following technical solution: a laser ablation device for pulmonary hypertension, comprising:

[0010] The gripping part includes a gripping handle and a catheter sheath slidably disposed within the gripping handle. A saline channel and an optical fiber channel are axially disposed within the catheter sheath.

[0011] The ablation unit includes a saline delivery tube disposed in the saline channel and an optical fiber disposed in the optical fiber channel, one end of which is connected to an external laser generator.

[0012] As a further improvement, the optical fiber is wound with a circulating water-cooling pipe.

[0013] As a further improvement, a magnetic positioning sensor is provided at the end of the catheter sheath away from the grip handle.

[0014] In a further improvement, a fine-tuning mechanism is provided on the side of the catheter sheath near the grip handle. The fine-tuning mechanism includes a hollow threaded rod, a piston tube, and a piston. A rotating base is provided on the side of the piston tube near the grip handle. An adjusting plate is rotatably disposed within the rotating base. The hollow threaded rod is slidably disposed within the piston tube and threadedly connected to the adjusting plate. The piston is disposed at one end of the hollow threaded rod located in the piston tube and is fixedly disposed with the catheter sheath.

[0015] As a further improvement, the piston tube is provided with graduations on its outer side.

[0016] As a further improvement, the grip handle is provided with anti-slip grooves.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Minimally invasive: The procedure is performed percutaneously, resulting in minimal trauma and rapid recovery;

[0019] 2. Precision: Lasers can precisely locate the lesion area, reducing damage to surrounding healthy tissues;

[0020] 3. Repeatability: Multiple treatments can be performed based on the patient's specific condition, offering high flexibility;

[0021] 4. Treatment effect: By denervation and fusion, pulmonary artery pressure is reduced, improving the patient's quality of life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a partial structural schematic diagram of Embodiment 1 of the present invention;

[0024] Figure 3 This utility model Figure 2 A magnified view of part A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0026] Figure 5 This is a schematic diagram of the fine-tuning mechanism in Embodiment 2 of this utility model.

[0027] In the diagram, 1 is the grip; 11 is the grip handle; 13 is the catheter sheath; 131 is the magnetic positioning sensor; 21 is the saline channel; 22 is the fiber optic channel; 3 is the ablation unit; 31 is the saline delivery tube; 32 is the fiber optic cable; 4 is the fine-tuning mechanism; 41 is the hollow threaded rod; 42 is the piston tube; 421 is the rotating base; 422 is the adjusting plate; and 43 is the piston. Detailed Implementation

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The following is a description of the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0031] Example 1

[0032] A laser ablation device for pulmonary hypertension, comprising:

[0033] The gripping part 1 includes a gripping handle 11 and a catheter sheath 13 slidably disposed within the gripping handle 11. A saline channel 21 and an optical fiber channel 22 are axially disposed within the catheter sheath 13.

[0034] The ablation unit 3 includes a saline delivery tube 31 disposed in the saline channel 21 and an optical fiber 32 disposed in the optical fiber channel 22, one end of which is connected to an external laser generator.

[0035] like Figures 1-3 As shown, the working principle of this utility model is as follows:

[0036] S1: Before the surgery, the doctor uses imaging examinations to determine the location of the pulmonary artery lesion and selects the appropriate laser type and parameters;

[0037] S2: Insert the catheter percutaneously into the pulmonary artery through a small incision, ensuring that the catheter sheath 13 reaches the target position;

[0038] S3: The laser emitter is activated, and the laser beam is transmitted through the optical fiber 32 to the end of the catheter sheath 13 and irradiates the target tissue for ablation treatment. The monitoring system records the pulmonary artery pressure and tissue temperature in real time to ensure the safety of the treatment process. At the same time, based on the monitoring feedback, the control system can dynamically adjust the laser power and irradiation time to ensure the ablation effect.

[0039] S4: After the treatment is completed, the equipment is removed, and the doctor confirms the treatment effect through imaging examinations.

[0040] Compared with surgical treatment using transmission methods, this invention has the following advantages:

[0041] 1. Minimally invasive: The procedure is performed percutaneously, resulting in minimal trauma and rapid recovery;

[0042] 2. Precision: Lasers can precisely locate the lesion area, reducing damage to surrounding healthy tissues;

[0043] 3. Repeatability: Multiple treatments can be performed based on the patient's specific condition, offering high flexibility;

[0044] 4. Treatment effect: By denervation and fusion, pulmonary artery pressure is reduced, improving the patient's quality of life.

[0045] As a further preferred embodiment, the optical fiber 32 is wound with a circulating water cooling pipe to cool the optical fiber 32, thereby preventing the optical fiber 32 from overheating and being damaged during long-term use.

[0046] As a further preferred embodiment, a magnetic positioning sensor 131 is provided at the end of the catheter sheath 13 away from the grip handle 11. The working end of the ablation section 3 is positioned by the magnetic positioning sensor 131, thereby improving the accuracy of the device.

[0047] Example 2

[0048] The difference between Example 2 and Example 1 is that: a fine-tuning mechanism 4 is provided on the side of the catheter sheath 13 near the grip handle 11. The fine-tuning mechanism 4 includes a hollow threaded rod 41, a piston tube 42, and a piston 43. A rotating base 421 is provided on the side of the piston tube 42 near the grip handle 11. An adjusting plate 422 is rotatably disposed in the rotating base 421. The hollow threaded rod 41 is slidably disposed in the piston tube 42 and threadedly connected to the adjusting plate 422. The piston 43 is disposed at one end of the hollow threaded rod 41 located in the piston tube 42 and is fixedly disposed with the catheter sheath 13.

[0049] Specifically, such as Figure 4 and 5As shown, in this embodiment, the precision of the device is improved by setting a fine-tuning mechanism 4. When the ablation section 3 is close to the lesion, the catheter sheath 13 is moved forward by rotating the adjustment plate 422, thereby precisely controlling the forward distance of the catheter sheath 13 so that the ablation section 3 is as close as possible to the lesion.

[0050] As a further preferred embodiment, the piston tube 42 is provided with a scale on the outside to facilitate intuitive observation of the movement distance of the catheter sheath 13.

[0051] As a further preferred embodiment, the grip handle 11 is provided with anti-slip grooves.

[0052] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A laser ablation device for pulmonary hypertension, characterized in that, include: The gripping part (1) includes a gripping handle (11) and a catheter sheath (13) slidably disposed in the gripping handle (11). A saline channel (21) and an optical fiber channel (22) are axially disposed in the catheter sheath (13). The ablation unit (3) includes a saline delivery tube (31) disposed in the saline channel (21) and an optical fiber (32) disposed in the optical fiber channel (22), one end of which is connected to an external laser generator.

2. The laser ablation device for pulmonary hypertension according to claim 1, characterized in that, The optical fiber (32) is wound with a circulating water-cooling pipe.

3. The laser ablation device for pulmonary hypertension according to claim 1, characterized in that, A magnetic positioning sensor (131) is provided at the end of the catheter sheath (13) away from the grip handle (11).

4. The laser ablation device for pulmonary hypertension according to claim 1, characterized in that, The catheter sheath (13) is provided with a fine adjustment mechanism (4) on the side near the grip handle (11). The fine adjustment mechanism (4) includes a hollow threaded rod (41), a piston tube (42), and a piston (43). The piston tube (42) is provided with a rotating base (421) on the side near the grip handle (11). An adjusting plate (422) is rotatably provided in the rotating base (421). The hollow threaded rod (41) is slidably provided in the piston tube (42) and threadedly connected to the adjusting plate (422). The piston (43) is provided at one end of the hollow threaded rod (41) located in the piston tube (42) and is fixedly provided with the catheter sheath (13).

5. A laser ablation device for pulmonary hypertension according to claim 4, characterized in that, The piston tube (42) has a scale on its outer side.

6. The laser ablation device for pulmonary hypertension according to claim 1, characterized in that, The grip handle (11) is provided with anti-slip grooves.

Images