Ablation electrode with bendable ablation head

Abstract

The ablation electrode with the bendable ablation head comprises a handheld cylinder, the top end of the handheld cylinder is connected with a nut in a rotating mode, the interior of the nut is connected with a stud through threads, an electrode needle is fixed in the stud, a sliding block is fixed on the outer wall of one side of the stud, a sliding groove is formed in the inner wall of one side of the handheld cylinder, and the sliding block slides in the sliding groove. A guide sleeve is fixed to the bottom end of the handheld cylinder, the electrode needle is inserted into the guide sleeve, the bottom end of the electrode needle extends out of the guide sleeve, and a first elastic bend and a second elastic bend are arranged at the bottom end of the electrode needle and both matched with the guide sleeve. According to the ablation electrode, the stud is driven to move by rotating the nut, so that the electrode needle can extend out of the guide sleeve, the effect that the bending degree of the electrode needle is kept unchanged is achieved, the hand of a doctor does not need to be kept in a pressed state, and the doctor can use the ablation electrode more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of ablation electrodes, and particularly relates to an ablation electrode with a bendable ablation head. Background Art

[0002] An ablation electrode is an accessory of a high-frequency surgical device required in high-frequency surgery, mainly used in combination with a high-frequency surgical device or a suction device product, etc., to ablate, stop bleeding, electrosect, electrocoagulate, aspirate and dissect relevant tissues during surgery.

[0003] Chinese Patent No. 201720622504.6 discloses an ablation electrode with a bendable ablation head, including: an electrode hose, the electrode hose includes a proximal end and a distal end; an electrode, the electrode is connected to the distal end of the electrode hose; and a metal wire, the metal wire includes a bent portion, the bent portion is arranged inside the distal end of the electrode hose along the axial direction of the electrode hose; the bent portion is composed of at least two bent segments with continuous bends. In the above patent, the movement of the electrode plug assembly is used to realize the extension of the electrode elbow part, but after the electrode elbow part extends, the doctor's hand needs to keep the pressing state of the spring to realize the maintenance of the elbow angle, which is likely to cause the doctor's hand to become sore and tired, and then make the ablation electrode inconvenient to use. Therefore, it is urgent to design an ablation electrode with a bendable ablation head to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an ablation electrode with a bendable ablation head to solve the above deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An ablation electrode with a bendable ablation head, including a hand-held cylinder, the top end of the hand-held cylinder is rotatably connected with a nut, the inside of the nut is threadedly connected with a stud, an electrode needle is fixed inside the stud, a slider is fixed on the outer wall of one side of the stud, a chute is opened on the inner wall of one side of the hand-held cylinder, the slider slides inside the chute, a guide sleeve is fixed at the bottom end of the hand-held cylinder, the electrode needle is inserted inside the guide sleeve, the bottom end of the electrode needle extends out of the guide sleeve, and elastic bends one and two are arranged at the bottom end of the electrode needle, and both elastic bends one and two are adapted to the guide sleeve.

[0007] Furthermore, a connecting ring is integrally formed at the top end of the hand-held cylinder, an annular cavity is opened on the outer wall of the bottom of the nut, the connecting ring is located inside the annular cavity, an annular groove is opened on the outer wall of the connecting ring, an installation hole is opened on the outer wall of the stud, a limiting column is inserted inside the installation hole, and one end of the limiting column extends into the annular groove.

[0008] Further, a hand-held surface is provided on the outer wall of the hand-held cylinder, and an anti-slip pad is bonded at the hand-held surface.

[0009] Further, an electrode wire is fixed to the top end of the stud, the electrode wire is electrically connected to the electrode needle, a protective sleeve is fixed to the top end of the stud, and the bottom end of the protective sleeve is fixed to the stud.

[0010] Further, a semi-circular end is integrally formed at one end of the limiting post, and the semi-circular end is adapted to the annular groove.

[0011] Further, a limiting platform is naturally formed between the connecting ring and the hand-held cylinder, and the limiting platform is adapted to the nut.

[0012] In the above technical solution, an ablation electrode with a bendable ablation head provided by the present utility model has the beneficial effects that: by rotating the nut to drive the stud to move, the electrode needle can extend out of the guide sleeve, and the effect of keeping the bend of the electrode needle unchanged can be achieved, without the doctor's hand needing to maintain a pressing state, thus making it more convenient for the doctor to use the ablation electrode; through the hand-held surface, it is more comfortable for the doctor to hold the ablation electrode, and the anti-slip pad is used to make it more firm for the doctor to hold the ablation electrode, preventing slipping when operating the ablation electrode, and thus making the use of the ablation electrode more convenient; the limiting post is inserted into the installation hole to realize the cooperation between the limiting post and the annular groove, prevent the nut from detaching from the hand-held cylinder, and at the same time achieve the effect of convenient assembly of the nut and the hand-held cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a front view structural schematic diagram provided by an embodiment of an ablation electrode with a bendable ablation head of the present utility model.

[0015] Figure 2 It is an internal structural schematic diagram provided by an embodiment of an ablation electrode with a bendable ablation head of the present utility model.

[0016] Figure 3 It is a structural schematic diagram of an annular groove provided by an embodiment of an ablation electrode with a bendable ablation head of the present utility model.

[0017] Figure 4 It is an enlarged structural schematic diagram at position A provided by an embodiment of an ablation electrode with a bendable ablation head of the present utility model.

[0018] Figure 5 The enlarged schematic view of part B provided for an embodiment of the ablation electrode with a bendable ablation head of the present utility model.

[0019] Explanation of reference numerals:

[0020] 1. Hand-held cylinder, 2. Guide sleeve, 3. Electrode needle, 4. Nut, 5. Stud, 6. First elastic bend, 7. Second elastic bend, 8. Hand-held surface, 9. Anti-slip pad, 10. Electrode wire, 11. Protective sleeve, 12. Slide block, 13. Slide groove, 14. Connecting ring, 15. Annular cavity, 16. Annular groove, 17. Limit post, 18. Semi-circular end, 19. Mounting hole, 20. Limit platform. Detailed implementation manners

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below with reference to the accompanying drawings.

[0022] As Figures 1-5 shown, an ablation electrode with a bendable ablation head provided by an embodiment of the present utility model includes a hand-held cylinder 1. A nut 4 is rotatably connected to the top end of the hand-held cylinder 1. A stud 5 is threadedly connected inside the nut 4. An electrode needle 3 is fixed inside the stud 5. A slide block 12 is fixed to the outer wall of one side of the stud 5. A slide groove 13 is formed in the inner wall of one side of the hand-held cylinder 1. The slide block 12 slides inside the slide groove 13. A guide sleeve 2 is fixed to the bottom end of the hand-held cylinder 1. The electrode needle 3 is inserted into the guide sleeve 2. The bottom end of the electrode needle 3 extends out of the guide sleeve 2. The bottom end of the electrode needle 3 is provided with a first elastic bend 6 and a second elastic bend 7. Both the first elastic bend 6 and the second elastic bend 7 are adapted to the guide sleeve 2.

[0023] Specifically, in this embodiment, it includes a hand-held cylinder 1. The cross-section of the hand-held cylinder 1 is circular. A nut 4 is rotatably connected to the top end of the hand-held cylinder 1. A stud 5 is threadedly connected inside the nut 4. The bottom end of the stud 5 extends into the hand-held cylinder 1. An electrode needle 3 is fixed inside the stud 5. The electrode needle 3 is an electrode component of an existing ablation electrode. A slide block 12 is fixed to the outer wall of one side of the stud 5. A slide groove 13 is formed in the inner wall of one side of the hand-held cylinder 1. The slide block 12 slides inside the slide groove 13, so that when the nut 4 is rotated, the stud 5 can drive the electrode needle 3 to move up and down. A guide sleeve 2 is fixed to the bottom end of the hand-held cylinder 1. The electrode needle 3 is inserted into the guide sleeve 2. The bottom end of the electrode needle 3 extends out of the guide sleeve 2. The part of the bottom end of the electrode needle 3 extending out of the guide sleeve 2 is the ablation head. The bottom end of the electrode needle 3 is provided with a first elastic bend 6 and a second elastic bend 7. The first elastic bend 6 and the second elastic bend 7 make the bottom end of the electrode needle 3 in a bent state in the natural state. Both the first elastic bend 6 and the second elastic bend 7 are adapted to the guide sleeve 2, and the parts of the first elastic bend 6 and the second elastic bend 7 can be retracted into the guide sleeve 2 through the movement of the electrode needle 3. When the electrode needle 3 extends out of the guide sleeve 2, the bottom end of the electrode needle 3 returns to the bent state of the first elastic bend 6 and the second elastic bend 7 through elastic recovery.

[0024] The ablation electrode with a bendable ablation head provided by the utility model drives the movement of the stud 5 by rotating the nut 4, so that the electrode needle 3 can extend out of the guide sleeve 2 and achieve the effect of keeping the bend of the electrode needle 3 unchanged, without the doctor's hand needing to maintain a pressing state, thus making it more convenient for the doctor to use the ablation electrode.

[0025] In another embodiment provided by the utility model, a connecting ring 14 is integrally formed at the top end of the hand-held cylinder 1. An annular cavity 15 is formed on the outer wall of the bottom of the nut 4. The connecting ring 14 is located inside the annular cavity 15, so that the nut 4 can rotate outside the connecting ring 14. An annular groove 16 is formed on the outer wall of the connecting ring 14. The annular groove 16 is opened along the outer circle of the connecting ring 14. An installation hole 19 is formed on the outer wall of the stud 5. A limiting column 17 is inserted inside the installation hole 19. One end of the limiting column 17 extends into the annular groove 16, so that the limiting column 17 plays a role in limiting the nut 4, and thus the nut 4 can only rotate outside the connecting ring 14. One end of the limiting column 17 is integrally formed with a semi-circular end 18. The semi-circular end 18 is adapted to the annular groove 16. By using the cooperation of the semi-circular end 18 and the annular groove 16, the rotation of the nut 4 is more stable. A limiting platform 20 is naturally formed between the connecting ring 14 and the hand-held cylinder 1. The limiting platform 20 is adapted to the nut 4. When the outer wall of the bottom of the nut 4 contacts the limiting platform 20, at this time the installation hole 19 just corresponds to the annular groove 16. The limiting column 17 is inserted inside the installation hole 19 to realize the cooperation between the limiting column 17 and the annular groove 16, prevent the nut 4 from separating from the hand-held cylinder 1, and at the same time achieve the effect of convenient assembly of the nut 4 and the hand-held cylinder 1.

[0026] In another embodiment provided by the utility model, a hand-held surface 8 is arranged on the outer wall of the hand-held cylinder 1. An anti-slip pad 9 is bonded at the hand-held surface 8. The anti-slip pad 9 is made of rubber material. Through the hand-held surface 8, it is more comfortable for the doctor to hold the ablation electrode, and the anti-slip pad 9 makes the doctor hold the ablation electrode more firmly, preventing the phenomenon of slipping when operating the ablation electrode, and thus making the use of the ablation electrode more convenient; an electrode wire 10 is fixed at the top end of the stud 5. The electrode wire 10 is electrically connected to the electrode needle 3. The connection principle between the electrode wire 10 and the electrode needle 3 is the prior art. A protective sleeve 11 is fixed at the top end of the stud 5. The protective sleeve 11 is made of soft rubber material, and the protective sleeve 11 is sleeved outside the electrode wire 10. The bottom end of the protective sleeve 11 is fixed to the stud 5, so that when the connection between the electrode wire 10 and the stud 5 is bent, the electrode wire 10 can be supported by the protective sleeve 11, preventing the connection between the electrode wire 10 and the stud 5 from breaking and extending the service life of the ablation electrode.

[0027] Working principle: When it is necessary to adjust the protruding length of the electrode needle 3, keep the hand-held cylinder 1 fixed and rotate the nut 4, so that the nut 4 drives the stud 5 to move downward inside the hand-held cylinder 1, and then the stud 5 drives the electrode needle 3 to protrude from the inside of the guide sleeve 2. When the second elastic bend 7 first exposes the guide sleeve 2, the bend at the bottom end of the electrode needle 3 is smaller at this time, and the bottom end of the electrode needle 3 can maintain a fixed bend in the natural state; when both the second elastic bend 7 and the first elastic bend 6 are exposed, the bend at the bottom end of the electrode needle 3 is larger at this time.

[0028] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An ablation electrode with a bendable ablation head, characterized in that: The invention comprises a hand-held tube (1), the top end of the hand-held tube (1) is rotatably connected with a nut (4), the interior of the nut (4) is connected with a stud (5) by threading, the interior of the stud (5) is fixed with an electrode needle (3), a slider (12) is fixed to one side outer wall of the stud (5), a slide groove (13) is provided on one side inner wall of the hand-held tube (1), the slider (12) slides inside the slide groove (13), a guide sleeve (2) is fixed to the bottom end of the hand-held tube (1), the electrode needle (3) is inserted into the inside of the guide sleeve (2), the bottom end of the electrode needle (3) extends out of the guide sleeve (2), the bottom end of the electrode needle (3) is provided with an elastic bend (6) and an elastic bend (7), the elastic bend (6) and the elastic bend (7) are both adapted to the guide sleeve (2).

2. The ablation electrode with a bendable ablation head according to claim 1, characterized in that: The top of the hand-held tube (1) is integrally formed with a connecting ring (14); the bottom outer wall of the nut (4) is provided with an annular cavity (15); the connecting ring (14) is located inside the annular cavity (15); the outer wall of the connecting ring (14) is provided with an annular groove (16); the outer wall of the stud (5) is provided with a mounting hole (19); a limiting column (17) is inserted into the interior of the mounting hole (19); one end of the limiting column (17) extends to the interior of the annular groove (16).

3. The ablation electrode with a bendable ablation head according to claim 1, characterized in that: The outer wall of the hand-held tube (1) is provided with a hand-held surface (8), and an anti-slip pad (9) is bonded to the hand-held surface (8).

4. The ablation electrode with a bendable ablation head according to claim 1, characterized in that: An electrode wire (10) is fixed to the top of the stud (5), and the electrode wire (10) is electrically connected to the electrode needle (3). A protective sleeve (11) is fixed to the top of the stud (5), and the bottom end of the protective sleeve (11) is fixed to the stud (5).

5. The ablation electrode with a bendable ablation head according to claim 2, characterized in that: One end of the limiting column (17) is integrally formed with a semicircular end (18), and the semicircular end (18) is adapted to the annular groove (16).

6. The ablation electrode with a bendable ablation head according to claim 2, characterized in that: A limiting platform (20) is naturally formed between the connecting ring (14) and the hand-held tube (1), and the limiting platform (20) is adapted to the nut (4).

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