Dual-mode ablation treatment electrode needle

Abstract

The invention relates to the technical field of medical instruments, and provides a dual-mode ablation treatment electrode needle which comprises a shell, an interface part is arranged on one side of the shell, a needle cylinder is fixedly connected to the bottom of the shell, a pull rod is slidably connected into the shell, a push rod is fixedly connected to the bottom of the pull rod, and a first ablation electrode and a second ablation electrode are arranged in the needle cylinder. A first limiting assembly is arranged on the first ablation electrode, a second limiting assembly is arranged on the second ablation electrode, clamping assemblies are arranged on the first limiting assembly and the second limiting assembly, and a pushing assembly is arranged at the bottom of the push rod; by integrating various energy forms, the accuracy and efficiency of ablation treatment are improved, the problems that the ablation range is limited and the surrounding tissue is seriously damaged are solved, more efficient tissue inactivation is achieved, meanwhile, for tumors with different diameters, medical staff do not need to frequently replace treatment tools, surgical operation is greatly simplified, and the surgical efficiency is improved. The operation time is shortened, and the pain and infection risk of a patient are relieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a dual-mode ablation treatment electrode needle. Background Art

[0002] With the rapid development of medical technology, minimally invasive treatment has become an important development direction of modern medicine. Ablation therapy, as a minimally invasive and efficient treatment method, plays an increasingly important role in the treatment of diseases such as tumors and arrhythmias. Traditional ablation techniques, such as radiofrequency ablation and cryoablation, although they have achieved certain therapeutic effects, still have problems such as limited ablation range and significant damage to surrounding tissues. To overcome these shortcomings, dual-mode ablation treatment electrode needles came into being. They combine multiple energy forms to achieve more precise and efficient tissue inactivation.

[0003] Furthermore, existing ablation treatment electrodes often require medical personnel to change to different-sized tools for tumors of varying diameters. This not only complicates the surgical procedure, but also prolongs the procedure, increasing patient pain and the risk of infection. Furthermore, ensuring accurate and stable contact and connection between the electrode and tumor tissue, as well as effectively monitoring its operating status, remain pressing challenges in current ablation treatment technology. Summary of the Invention

[0004] The present invention provides a dual-mode ablation treatment electrode needle, which realizes personalized treatment by flexibly selecting the ablation mode and electrode size. During the treatment process, the application of the condensed water circulation system effectively reduces the temperature of the end of the ablation electrode, protecting the surrounding normal tissue from thermal damage. At the same time, the accurate contact and stable connection between the electrode needle and the tumor tissue, as well as the real-time monitoring of the working status, ensure the smooth progress of the treatment process. After the treatment, the rapid recovery mechanism of the electrode needle further improves the surgical efficiency and brings a better treatment experience to the patient, thereby solving the problems raised in the background technology.

[0005] The technical solutions of the present invention are as follows: A dual-mode ablation treatment electrode needle comprises: a shell, an interface portion is provided on one side of the shell, a syringe is fixedly connected to the bottom of the shell, a pull rod is slidably connected inside the shell, the top of the pull rod extends out of the top of the shell, the bottom of the pull rod is fixedly connected to a push rod, the push rod extends into the syringe, a first ablation electrode and a second ablation electrode are provided in the syringe, the first ablation electrode and the second ablation electrode are staggered, the first ablation electrode and the second ablation electrode can be staggered by microwave + freezing, radio frequency + microwave, etc., and designed according to specific clinical needs to achieve a more optimized treatment effect, and the first ablation electrode and the second ablation electrode have different sizes and are used to treat tumors of different diameters, reducing the steps for medical staff to replace treatment tools during use, a first limiting component is provided on the first ablation electrode, a second limiting component is provided on the second ablation electrode, a locking component is provided on both the first limiting component and the second limiting component, and a pushing component is provided at the bottom of the push rod.

[0006] Furthermore, a square groove 1 is provided on one side of the push rod, and an iron sheet is fixedly connected to the bottom of the square groove 1. The push rod is provided with a sound-through groove on one side of the square groove 1, and the sound-through groove extends to the top of the pull rod, and the sound-through groove is trumpet-shaped. When the limit block contacts the short side of the L-groove 1 or the L-groove 2, the limit block is forced to slide into the square groove 3, and while compressing the spring 2, it drives the iron plate to move upward in the square groove 1 until it slides to the square groove 2, and the limit block is bounced into the square groove 2 by the spring 2. During the sliding process, the limit block drives the iron plate to slide rapidly downward in the square groove 1 until it contacts the iron sheet. The two make a sound when they contact, and the sound is transmitted through the trumpet-shaped sound-through groove, which is convenient for medical staff to understand whether the push rod is connected to the first ablation electrode or the second ablation electrode.

[0007] Furthermore, the bottom of the push rod is fixedly connected to a fixed block 1, the top of the fixed block 1 is pointed, and the bottom of the push rod is fixedly connected to a circulating water hollow ring on the side of the fixed block 1. The top of the circulating water hollow ring is provided with a water receiving pipe connected to the interface part. When in use, medical staff will circulate condensed water into the circulating water hollow ring through the water receiving pipe to cool the end of the operating first ablation electrode or the second ablation electrode, and the ends of the first ablation electrode and the second ablation electrode are both connected to the interface part, and the first ablation electrode or the second ablation electrode is powered by the interface part.

[0008] Furthermore, the first limiting component includes a fixed block 2 fixedly connected to the first ablation electrode, an L-groove 1 is provided on the left side of the top of the fixed block 2, and the bottom of the fixed block 2 is pointed. When the top of the fixed block 1 contacts the bottom of the fixed block 2, it can slide over the fixed block 2 through the pointed side.

[0009] Furthermore, the second limiting assembly includes a fixed block three fixedly connected to the second ablation electrode, an L-groove two is provided on the right side of the top of the fixed block three, and the bottom of the fixed block three is also pointed, and the bottom of the fixed block three is also pointed and has the same function as the fixed block two.

[0010] Furthermore, the locking assembly includes square grooves 2 respectively opened in the middle of the short sides of the L-groove 1 and the L-groove 2, channels 1 are opened on both sides of the square groove 2, grooves 1 are opened at one end of the two channels 1 away from the square groove 2, a ball 1 is slidably connected in the channel 1, and a spring 1 is fixedly connected between the groove 1 and the ball 1.

[0011] Furthermore, the pushing component includes a square groove three opened at the bottom of the fixed block one, and a limiting block is slidably connected in the square groove three. The limiting block is narrow at both ends and wide in the middle. A spring two is fixedly connected between the limiting block and the square groove three. The limiting block is fixedly connected to an iron plate at one end close to the push rod, and the iron plate extends into the square groove three and contacts the iron sheet.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. By integrating multiple energy forms, the present invention significantly improves the accuracy and efficiency of ablation therapy. Compared with traditional single ablation technology, it overcomes the problems of limited ablation range and severe damage to surrounding tissues, achieving more efficient tissue inactivation. At the same time, for tumors of different diameters, medical staff do not need to frequently change treatment tools. They only need to adjust the pull rod to select the appropriate electrode size, which greatly simplifies the surgical operation, shortens the operation time, and reduces the patient's pain and infection risk.

[0013] 2. The present invention achieves personalized treatment by flexibly selecting the ablation mode and electrode size. During the treatment process, the application of the condensed water circulation system effectively reduces the temperature of the end of the ablation electrode, protecting the surrounding normal tissue from thermal damage. At the same time, the accurate contact and stable connection between the electrode needle and the tumor tissue, as well as the real-time monitoring of the working status, ensure the smooth progress of the treatment process. After the treatment, the rapid recovery mechanism of the electrode needle further improves the surgical efficiency and brings a better treatment experience to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the device of the present invention; Figure 2 It is a structural diagram of the device of the present invention; Figure 3 It is a diagram of the internal structure of the device of the present invention; Figure 4 This is a structural diagram of the sound channel of the device of the present invention; Figure 5 This is a structural diagram of the fixed block of the device of the present invention; Figure 6 This invention Figure 3 Enlarged view of point A in the middle; Figure 7 This invention Figure 4 Enlarged view of point B in the middle.

[0015] In the picture: 1. Shell; 11. Interface part; 2. Syringe; 21. Pull rod; 22. Push rod; 221. Square slot 1; 222. Iron sheet; 223. Sound-passing slot; 224. Fixed block 1; 225. Circulating water hollow ring; 3. First ablation electrode; 4. Second ablation electrode; 5. First limiting assembly; 51. Fixed block 2; 52. L slot 1; 6. Second limiting assembly; 61. Fixed block 3; 62. L slot 2; 7. Engaging assembly; 71. Square slot 2; 72. Channel 1; 73. Groove 1; 74. Ball 1; 75. Spring 1; 8. Pushing assembly; 81. Square slot 3; 82. Limiting block; 83. Spring 2; 84. Iron plate. DETAILED DESCRIPTION

[0016] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0017] like Figure 1-Figure 7As shown, the present invention provides a dual-mode ablation treatment electrode needle, comprising: a shell 1, an interface portion 11 is provided on one side of the shell 1, a syringe 2 is fixedly connected to the bottom of the shell 1, a pull rod 21 is slidably connected inside the shell 1, the top of the pull rod 21 extends out of the top of the shell 1, the bottom of the pull rod 21 is fixedly connected to a push rod 22, the push rod 22 extends into the syringe 2, a first ablation electrode 3 and a second ablation electrode 4 are provided in the syringe 2, the first ablation electrode 3 and the second ablation electrode 4 are staggered, and the first ablation electrode 3 and the second ablation electrode 4 are staggered. The ablation electrode 4 can be staggered by microwave + freezing, radio frequency + microwave, etc., and designed according to specific clinical needs to achieve a more optimized treatment effect. The first ablation electrode 3 and the second ablation electrode 4 have different sizes and are used to treat tumors of different diameters, reducing the steps for medical staff to replace treatment tools during use. A first limiting component 5 is provided on the first ablation electrode 3, and a second limiting component 6 is provided on the second ablation electrode 4. A locking component 7 is provided on both the first limiting component 5 and the second limiting component 6, and a pushing component 8 is provided at the bottom of the push rod 22.

[0018] As a technical solution of the present invention, a square groove 221 is provided on one side of the push rod 22, and an iron sheet 222 is fixedly connected to the bottom of the square groove 221. A sound-through groove 223 is provided on one side of the push rod 22, and the sound-through groove 223 penetrates to the top of the pull rod 21, and the sound-through groove 223 is horn-shaped. When the limit block 82 contacts the short side of the L groove 1 52 or the L groove 2 62, the limit block 82 is forced to slide into the square groove 3 81, and drives the spring 2 83 to compress while the limit block 82 is pressed. The iron plate 84 moves upward in the square groove 1 221 until it slides to the square groove 2 71, and the limit block 82 is bounced into the square groove 2 71 by the spring 2 83. During the sliding process, the limit block 82 drives the iron plate 84 to slide downward quickly in the square groove 1 221 until it contacts the iron sheet 222. The two make a sound when in contact, and the sound is transmitted through the trumpet-shaped sound-transmitting groove 223, which makes it easy for medical staff to understand whether the push rod 22 is connected to the first ablation electrode 3 or the second ablation electrode 4.

[0019] As a technical solution of the present invention, the bottom of the push rod 22 is fixedly connected to a fixed block 224, the top of the fixed block 224 is pointed, and the bottom of the push rod 22 is fixedly connected to a circulating water hollow ring 225 on the side of the fixed block 224. The top of the circulating water hollow ring 225 is provided with a water receiving pipe connected to the interface part 11. When in use, medical staff will circulate condensed water into the circulating water hollow ring 225 through the water receiving pipe to cool the end of the operating first ablation electrode 3 or the second ablation electrode 4, and the ends of the first ablation electrode 3 and the second ablation electrode 4 are both connected to the interface part 11, and the first ablation electrode 3 or the second ablation electrode 4 is powered by the interface part 11.

[0020] As a technical solution of the present invention, the first limiting assembly 5 includes a second fixing block 51 fixedly connected to the first ablation electrode 3. An L-shaped groove 52 is provided on the left side of the top of the second fixing block 51, and the bottom of the second fixing block 51 is pointed. When the top of the first fixing block 224 contacts the bottom of the second fixing block 51, the first fixing block 51 can slide over the second fixing block 51 through the pointed side. When the patient's tumor to be ablated is small and the first ablation electrode 3 is used, the medical staff pulls the pull rod 21 to the top of the first ablation electrode 3 and rotates the pull rod 21 clockwise, so that the fixing block 224 slides into the L-groove 52. When one side of the limiting block 82 abuts against the side of the L-groove 52, the side of the L-groove 52 pushes the side of the limiting block 82, so that the limiting block 82 slides into the square groove 221. If the tumor to be ablated in the patient is large, the second ablation electrode 4 is used. The medical staff pulls the pull rod 21 to the top of the second ablation electrode 4 and rotates the pull rod 21 counterclockwise.

[0021] As a technical solution of the present invention, the second limiting assembly 6 includes a fixed block three 61 fixedly connected to the second ablation electrode 4, an L-groove two 62 is opened on the right side of the top of the fixed block three 61, and the bottom of the fixed block three 61 is also pointed, and the bottom of the fixed block three 61 is also pointed and has the same function as the fixed block two 51.

[0022] As a technical solution of the present invention, the locking assembly 7 includes a second square groove 71 respectively provided in the middle of the short sides of the first L groove 52 and the second L groove 62. A first channel 72 is provided on both sides of the second square groove 71. A first groove 73 is provided at one end of each of the first channels 72 away from the second square groove 71. A first ball 74 is slidably connected in the first channel 72. A first spring 75 is fixedly connected between the first groove 73 and the first ball 74. When the limit block 82 slides into the square groove 2 71 , the middle part of the limit block 82 abuts against the ball 1 74 and pushes the balls 1 74 at both ends to slide into the channel 1 72 and compress the spring 1 75. As the spring 2 83 continues to push the limit block 82, the middle part of the limit block 82 slides to the bottom of the square groove 2 71 , and the ball 1 74 is pushed out by the spring 1 75 and abuts against the end of the limit block 82. At this time, restricted by the ball 1 74 , the spring 2 83 cannot pull the limit block 82 back, so that the push rod 22 engages with the first ablation electrode 3 or the second ablation electrode 4. After use, the medical staff only needs to pull the pull rod 21 to retract the first ablation electrode 3 or the second ablation electrode 4.

[0023] As a technical solution of the present invention, the pushing component 8 includes a square groove three 81 opened at the bottom of the fixed block one 224, and a limiting block 82 is slidably connected in the square groove three 81. The limiting block 82 is narrow at both ends and wide in the middle. A spring two 83 is fixedly connected between the limiting block 82 and the square groove three 81. The limiting block 82 is fixedly connected to an iron plate 84 at one end close to the push rod 22, and the iron plate 84 extends into the square groove three 81 and contacts the iron sheet 222.

[0024] Working principle: like Figure 1-Figure 7 As shown, in the preparation stage, the medical staff first selects the appropriate ablation mode and electrode size according to the patient's tumor condition, connects the dual-mode ablation treatment electrode needle to the corresponding energy source and condensed water circulation system, and connects the first ablation electrode 3 or the second ablation electrode 4 to electricity through the interface part 11. At the same time, the water pipe is connected to the circulating water hollow ring 225 to cool the end of the ablation electrode during the treatment process; If the tumor to be ablated is small, the medical staff pulls the pull rod 21 to the top of the first ablation electrode 3 and rotates the pull rod 21 clockwise to slide the fixing block 1 224 into the L-groove 1 52 on the fixing block 2 51; If the tumor to be ablated is large, the medical staff pulls the pull rod 21 to the top of the second ablation electrode 4 and rotates the pull rod 21 counterclockwise to slide the fixing block 1 224 into the L-slot 2 62 on the fixing block 3 61 .

[0025] like Figure 2 and Figure 4-Figure 7 As shown, in the electrode preparation stage: during the rotation of the pull rod 21, the limit block 82 at the bottom of the push rod 22 is pushed by the side of the L-groove 1 52 or the L-groove 2 62, slides into the square groove 1 221 and compresses the spring 2 83; When the limit block 82 slides into the square groove 2 71 , the middle of the limit block 82 contacts the ball 1 74 , pushing the balls 1 74 at both ends to slide into the channel 1 72 and compress the spring 1 75 ; As spring 2 83 continues to push the limit block 82, the middle part of the limit block 82 slides to the bottom of square groove 2 71, and the ball 1 74 is pushed out by spring 1 75 and abuts against the end of the limit block 82. At this time, the push rod 22 is engaged and fixed with the first ablation electrode 3 or the second ablation electrode 4; at the same time, in the process of the limit block 82 sliding out, it drives the iron plate 84 to slide downward quickly in the square groove 1 221 until it contacts the iron sheet 222. The two make a sound when they contact, and the sound is transmitted through the trumpet-shaped sound-transmitting groove 223, which makes it easy for medical staff to understand whether the push rod 22 is successfully connected to the ablation electrode.

[0026] like Figure 2 As shown, in the treatment phase: the energy source is turned on, and power is supplied to the selected ablation electrode through the interface part 11. The ablation electrode starts working, applying energy to the tumor tissue to achieve tissue inactivation. At the same time, the condensed water is circulated into the circulating water hollow ring 225 through the water connecting pipe to cool the end of the operating first ablation electrode 3 or the second ablation electrode 4, thereby protecting the surrounding normal tissue from thermal damage.

[0027] like Figure 2 and Figure 4-Figure 7 As shown, after the treatment is completed: the medical staff pulls the pull rod 21, the push rod 22 drives the fixed block 224 to move upward, the limit block 82 is squeezed by the side of the L-groove 1 52 or the L-groove 2 62, slides into the square groove 1 221 and compresses the spring 2 83, and finally disengages from the square groove 2 71, thereby separating the push rod 22 from the first ablation electrode 3 or the second ablation electrode 4; the medical staff removes the electrode needle from the patient's body, completing the treatment process.

[0028] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A dual-mode ablation treatment electrode needle, comprising: A shell (1), wherein an interface portion (11) is provided on one side of the shell (1), and is characterized in that: a syringe (2) is fixedly connected to the bottom of the shell (1), a pull rod (21) is slidably connected inside the shell (1), the top of the pull rod (21) extends out of the top of the shell (1), the bottom of the pull rod (21) is fixedly connected to a push rod (22), the push rod (22) extends into the syringe (2), a first ablation electrode (3) and a second ablation electrode (4) are provided in the syringe (2), the first ablation electrode (3) and the second ablation electrode (4) are staggered, a first limiting component (5) is provided on the first ablation electrode (3), a second limiting component (6) is provided on the second ablation electrode (4), a locking component (7) is provided on both the first limiting component (5) and the second limiting component (6), and a pushing component (8) is provided at the bottom of the push rod (22).

2. A dual-mode ablation treatment electrode needle according to claim 1, characterized in that: A square groove (221) is provided on one side of the push rod (22), an iron sheet (222) is fixedly connected to the bottom of the square groove (221), and a sound-through groove (223) is provided on one side of the square groove (221) of the push rod (22), the sound-through groove (223) passes through to the top of the pull rod (21), and the sound-through groove (223) is in the shape of a trumpet.

3. A dual-mode ablation treatment electrode needle as claimed in claim 2, characterized in that: The bottom of the push rod (22) is fixedly connected to a fixed block 1 (224), the top of the fixed block 1 (224) is pointed, the bottom of the push rod (22) is fixedly connected to a circulating water hollow ring (225) on the side of the fixed block 1 (224), the top of the circulating water hollow ring (225) is provided with a water pipe connected to the interface part (11), and the ends of the first ablation electrode (3) and the second ablation electrode (4) are both connected to the interface part (11).

4. The dual-mode ablation treatment electrode needle according to claim 1, characterized in that: The first limiting assembly (5) comprises a second fixing block (51) fixedly connected to the first ablation electrode (3), an L-groove (52) is provided on the left side of the top of the second fixing block (51), and the bottom of the second fixing block (51) is pointed.

5. The dual-mode ablation treatment electrode needle according to claim 4, characterized in that: The second limiting assembly (6) includes a fixing block three (61) fixedly connected to the second ablation electrode (4), an L-groove two (62) is provided on the right side of the top of the fixing block three (61), and the bottom of the fixing block three (61) is also pointed.

6. A dual-mode ablation treatment electrode needle as claimed in claim 5, characterized in that: The engaging assembly (7) includes a square groove (71) provided in the middle of the short sides of the L groove (52) and the L groove (62), respectively. A channel (72) is provided on both sides of the square groove (71). A groove (73) is provided at one end of the two channels (72) away from the square groove (71). A ball (74) is slidably connected in the channel (72), and a spring (75) is fixedly connected between the groove (73) and the ball (74).

7. The dual-mode ablation treatment electrode needle according to claim 3, characterized in that: The pushing assembly (8) includes a square groove three (81) provided at the bottom of the fixed block one (224), a limiting block (82) being slidably connected in the square groove three (81), the limiting block (82) being narrow at both ends and wide in the middle, a spring two (83) being fixedly connected between the limiting block (82) and the square groove three (81), an iron plate (84) being fixedly connected to one end of the limiting block (82) close to the push rod (22), the iron plate (84) extending into the square groove three (81) and contacting the iron sheet (222).

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