CN113796954B - Ablation needle capable of changing heating angle - Google Patents
Ablation needle capable of changing heating angle Download PDFInfo
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- CN113796954B CN113796954B CN202111181564.6A CN202111181564A CN113796954B CN 113796954 B CN113796954 B CN 113796954B CN 202111181564 A CN202111181564 A CN 202111181564A CN 113796954 B CN113796954 B CN 113796954B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00017—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids with gas
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1869—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument interstitially inserted into the body, e.g. needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
Abstract
The invention discloses an ablation needle with a changeable heating angle, and belongs to the field of medical instruments. An ablation needle with a changeable heating angle comprises a cooling device, a main control rod, a hole expanding device, a blocking device, a connecting device and a power line, wherein the power line is arranged on the main control rod and connected with external power supply equipment; a shielding rod is slidably arranged at one end of the main control rod, a microwave needle head is arranged at one end of the shielding rod, which is far away from the main control rod, and the microwave needle head emits high-frequency electromagnetic waves to the periphery after being electrified; the temperature reducing device is fixedly arranged at one end of the main control rod, which is far away from the blocking rod, through the supporting rod, and is used for reducing the temperature of human tissues in contact with the blocking device.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an ablation needle with a changeable heating angle.
Background
The ablation needle is a very thin radiating antenna. The specific method comprises the following steps: under the guidance of B-ultrasonic or CT, the ablation needle is directly punctured to the tumor part, the polar molecules in the tissue move at high speed under the action of high-frequency electromagnetic waves and rub against each other to generate heat, the temperature in the tumor is rapidly raised, and when the temperature is raised to about 60 ℃, the protein of the cancer cell is denatured and coagulated to cause irreversible necrosis.
The tradition melts the needle and is the four sides octahedron when sending the high frequency electromagnetic wave and launch, this moment when eliminating cancer cell, there is some normal cells to receive the influence of high frequency electromagnetic wave and heat up, thereby cause the necrosis of normal cell, when carrying out the thyroid tumor or being close to the tumour of dangerous triangular space and melting, can influence the operation of patient normal organ very likely, there is certain risk, if restrict high frequency electromagnetic wave's the direction of dispersing, then need use the metal sheet to reflect the electromagnetic wave, need insert the metal sheet to the patient is internal like this, make the operation wound expand, be unfavorable for patient postoperative to resume.
Disclosure of Invention
The present invention is directed to an ablation needle with a changeable heating angle, so as to solve the problem of the above background art that the damage to the normal organs of the patient body may be caused during the normal treatment process.
In order to achieve the purpose, the invention provides the following technical scheme: an ablation needle with a changeable heating angle comprises a cooling device, a main control rod, a hole expanding device, a blocking device, a connecting device and a power line which is arranged on the main control rod and connected with external power supply equipment; a shielding rod is slidably arranged at one end of the main control rod, a microwave needle head is arranged at one end of the shielding rod, which is far away from the main control rod, and the microwave needle head emits high-frequency electromagnetic waves to the periphery after being electrified; the heat sink is fixed to be set up at the master control pole through the bracing piece and keeps away from the one end that blocks the pole, and the heat sink is used for making the human tissue cooling with the contact of separation device, and reaming device installs in the master control pole and is connected with the pole that blocks, and reaming device is used for increasing the hole that the microwave syringe needle punctured human tissue, and the separation device is installed in blocking the pole to be used for the high frequency electromagnetic wave of separation microwave syringe needle transmission, connecting device is fixed to be set up inside the separation device, and is used for connecting the separation device.
Preferably, the reaming device comprises a reaming motor fixedly arranged in the main control rod, a planetary gear mechanism rotatably arranged on one side, close to the shielding rod, of the reaming motor, and a connecting shaft, one end of the planetary gear mechanism is connected with the planetary gear mechanism, and the other end of the planetary gear mechanism is fixedly connected with the shielding rod.
Preferably, the planetary gear mechanism comprises a gear ring fixedly arranged in the main control rod, a surrounding gear meshed with the inner side of the gear ring and a fixed gear superposed with the axis of the gear ring, wherein a motor shaft is fixed on one side of the fixed gear close to the hole expanding motor, the motor shaft is in power connection with the hole expanding motor, and one side of the surrounding gear far away from the hole expanding motor is fixedly connected with the connecting shaft.
Preferably, the blocking device comprises a first storage cavity arranged in the blocking rod, a first sliding plate arranged in the first storage cavity in a sliding manner, a first blocking plate fixed on one side of the first sliding plate far away from the main control rod, and a driving motor fixed in the end wall of one side of the first storage cavity close to the main control rod; one end, far away from the first sliding plate, of the first shielding plate extends out of the first storage cavity, the first shielding plate is connected with the shielding rod in a sliding mode, a threaded rod is connected with the driving motor in a power mode, one end, far away from the main control rod, of the threaded rod is connected with the end wall of the first storage cavity in a rotating mode, and the threaded rod penetrates through the first sliding plate and is in threaded connection with the first sliding plate.
Preferably, the blocking device further comprises a second storage cavity arranged in the main control rod, a second sliding plate arranged in the second storage cavity in a sliding manner, and a second blocking plate fixed on one side, far away from the blocking rod, of the second sliding plate; one end, far away from the second sliding plate, of the second shielding plate extends out of the second storage cavity, the second shielding plate is connected with the main control rod in a sliding mode, and the first sliding plate is connected with the second sliding plate through a connecting device.
Preferably, the connecting device comprises a sliding rod fixed on one side of the first sliding plate, which is far away from the main control rod, a fixed rod fixed on one side of the second sliding plate, which is close to the blocking rod, a sliding cavity arranged in the sliding rod and a buffer spring arranged in the sliding cavity; the one end and the slip chamber sliding connection that the dead lever is close to the slide bar, the one end and the buffer spring fixed connection that the dead lever is located the slip intracavity, the one end that the buffer spring kept away from the dead lever and the one side end wall fixed connection that the dead lever was kept away from in the slip chamber, sliding connection between slide bar and the sheltering from the pole, sliding connection between slide bar and the main control pole.
Preferably, the cooling device comprises a liquid storage tank which is fixedly connected with the support rod and is hollow inside, a sealing radiating fin arranged in the inner space of the liquid storage tank, a water inlet pipe and a water outlet pipe which are arranged on one side of the liquid storage tank close to the support rod and are communicated with the inner space of the liquid storage tank, and a cooling fan arranged on one side of the sealing radiating fin far away from the support rod; the end wall of one side of the inner space of the liquid storage box, which is far away from the support rod, is provided with an opening communicated with the outside, a support is fixed in the opening, a fan motor is fixed in the support, the fan motor is fixedly connected with the cooling fan, and the opening is not completely sealed by the support.
Preferably, the heat sink is still including installing at the miniature pump that first storage chamber is close to main control pole one side and alternate the heat dissipation water pipe that sets up in first shielding plate inside, miniature pump keeps being connected with inlet tube and outlet pipe respectively, and the one end that main control pole was kept away from to inlet tube and outlet pipe communicates with the both ends of heat dissipation water pipe respectively.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can kill cancer cells in a patient body at high temperature, and form an oval spherical scattering shape at the same time, so that histiocytes positioned in the oval spherical shape are heated and necrotized to achieve the purpose of killing;
2. the metal baffle is used for blocking the divergence of the high-frequency electromagnetic wave at any angle between 1 degree and 360 degrees, so that the high-frequency electromagnetic wave is reflected by the metal baffle and then cannot be diverged to the direction of normal tissue cells of a patient, the temperature of the normal tissue cells cannot be raised, and the safety of the normal tissue cells in the body of the patient is powerfully protected;
3. the invention can reduce the wound surface area in the operation process by slowly expanding the needle hole inserted into the body of the patient, does not puncture the patient for the second time, and improves the recovery speed of the wound of the patient after the operation.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 isbase:Sub>A sectional view of the structure taken along the line A-A in FIG. 1;
FIG. 3 is a sectional view of the structure taken along the direction of FIG. 1B-B;
FIG. 4 is a sectional view of the structure taken in the direction of FIG. 2C-C;
FIG. 5 is a schematic perspective view of a portion of the barrier and attachment means of the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 2D;
fig. 7 is an enlarged view of the structure of fig. 2E.
In the figure: 1. a cooling device; 3. a hole expanding device; 3a, a planet wheel mechanism; 4. a barrier device; 5. a connecting device; 10. a liquid storage tank; 11. a support bar; 12. a micro water pump; 13. a water inlet pipe; 14. a water outlet pipe; 15. a heat dissipation water pipe; 16. sealing the heat sink; 17. a heat-dissipating fan; 18. a support; 19. a fan motor; 20. a master lever; 21. a power line; 22. a blocking lever; 23. a microwave needle head; 31. a hole expanding motor; 32. a ring gear; 33. a connecting shaft; 34. fixing a gear; 35. a surrounding gear; 36. a motor shaft; 41. a drive motor; 42. a threaded rod; 43. a first storage chamber; 44. a second sliding plate; 45. a second shielding plate; 46. a first shielding plate; 47. a second storage chamber; 48. a first sliding plate; 51. a slide bar; 52. a fixing rod; 53. a sliding cavity; 54. a buffer spring.
Detailed Description
Example 1:
referring to fig. 1-7, the present invention provides a technical solution: an ablation needle with a changeable heating angle comprises a cooling device 1, a main control rod 20, a hole expanding device 3, a blocking device 4, a connecting device 5 and a power line 21 which is arranged on the main control rod 20 and connected with external power supply equipment; a shielding rod 22 is slidably arranged at one end of the main control rod 20, a microwave needle 23 is arranged at one end of the shielding rod 22 far away from the main control rod 20, and high-frequency electromagnetic waves are emitted to the periphery after the microwave needle 23 is electrified; heat sink 1 keeps away from the one end that blocks off pole 22 at master control pole 20 through the fixed setting of bracing piece 11, heat sink 1 is used for making the human tissue cooling with the contact of separation device 4, reaming device 3 is installed in master control pole 20 and is connected with blocking pole 22, reaming device is used for the hole increase that will puncture human tissue with microwave syringe needle 23, separation device 4 is installed in blocking pole 22, and be used for the high frequency electromagnetic wave of separation microwave syringe needle 23 transmission, connecting device 5 is fixed to be set up inside separation device 4, and be used for connecting separation device 4.
Referring to fig. 2 and 7, the reaming device 3 includes a reaming motor 31 fixedly disposed in the main control rod 20, a planetary gear mechanism 3a rotatably disposed on a side of the reaming motor 31 close to the shielding rod 22, and a connecting shaft 33 having one end connected to the planetary gear mechanism 3a and the other end fixedly connected to the shielding rod 22.
Referring to fig. 7, the planetary gear mechanism 3a includes a gear ring 32 fixedly disposed in the main control rod 20, a surrounding gear 35 engaged with an inner side of the gear ring 32, and a fixed gear 34 overlapped with an axis of the gear ring 32, wherein a motor shaft 36 is fixed on a side of the fixed gear 34 close to the hole enlarging motor 31, the motor shaft 36 is in power connection with the hole enlarging motor 31, and a side of the surrounding gear 35 far from the hole enlarging motor 31 is in fixed connection with the connecting shaft 33.
Referring to fig. 2, the blocking device 4 includes a first storage chamber 43 disposed in the shielding rod 22, a first sliding plate 48 slidably disposed in the first storage chamber 43, a first shielding plate 46 fixed to a side of the first sliding plate 48 away from the main control rod 20, and a driving motor 41 fixed to an end wall of the first storage chamber 43 near the main control rod 20; one end of the first shielding plate 46 far away from the first sliding plate 48 extends out of the first storage cavity 43, the first shielding plate 46 is connected with the shielding rod 22 in a sliding mode, a threaded rod 42 is connected with the driving motor 41 in a power mode, one end of the threaded rod 42 far away from the main control rod 20 is connected with the end wall of the first storage cavity 43 in a rotating mode, and the threaded rod 42 penetrates through the first sliding plate 48 and is connected with the first sliding plate 48 in a threaded mode.
Referring to fig. 2, the blocking device 4 further includes a second storage chamber 47 disposed in the main control rod 20, a second sliding plate 44 slidably disposed in the second storage chamber 47, and a second blocking plate 45 fixed to a side of the second sliding plate 44 away from the blocking rod 22; one end of the second shielding plate 45, which is far away from the second sliding plate 44, extends out of the second storage cavity 47, the second shielding plate 45 is slidably connected with the main control rod 20, the first sliding plate 48 is connected with the second sliding plate 44 through the connecting device 5, and the first shielding plate 46 and the second shielding plate 45 are made of metal capable of reflecting high-frequency electromagnetic waves.
Referring to fig. 6, the connecting device 5 includes a sliding rod 51 fixed on a side of the first sliding plate 48 away from the main control rod 20, a fixing rod 52 fixed on a side of the second sliding plate 44 close to the blocking rod 22, a sliding cavity 53 disposed in the sliding rod 51, and a buffer spring 54 mounted in the sliding cavity 53; one end of the fixed rod 52 close to the sliding rod 51 is slidably connected with the sliding cavity 53, one end of the fixed rod 52 located in the sliding cavity 53 is fixedly connected with the buffer spring 54, one end of the buffer spring 54 far away from the fixed rod 52 is fixedly connected with the end wall of one side of the sliding cavity 53 far away from the fixed rod 52, the sliding rod 51 is slidably connected with the shielding rod 22, and the sliding rod 51 is slidably connected with the main control rod 20.
Referring to fig. 3, the cooling device 1 includes a liquid storage tank 10 fixedly connected to a support rod 11 and having a hollow interior, a sealing heat sink 16 disposed in the interior space of the liquid storage tank 10, a water inlet pipe 13 and a water outlet pipe 14 disposed on one side of the liquid storage tank 10 close to the support rod 11 and communicated with the interior space of the liquid storage tank 10, and a heat dissipation fan 17 disposed on one side of the sealing heat sink 16 away from the support rod 11; an opening communicated with the outside is formed in the end wall of one side, away from the supporting rod 11, of the inner space of the liquid storage box 10, a support 18 is fixed in the opening, a fan motor 19 is fixed in the support 18, the fan motor 19 is fixedly connected with the heat dissipation fan 17, and the opening is not completely closed by the support 18.
Referring to fig. 2, the cooling device 1 further includes a micro water pump 12 installed at one side of the first storage cavity 43 close to the main control rod 20, and a heat dissipation water pipe 15 inserted into the first shielding plate 46, the micro water pump 12 is respectively connected to the water inlet pipe 13 and the water outlet pipe 14, and one ends of the water inlet pipe 13 and the water outlet pipe 14 far away from the main control rod 20 are respectively communicated with two ends of the heat dissipation water pipe 15.
In the initial state, the first shielding plate 46 is completely located in the first storage chamber 43, and the second shielding plate 45 is completely located in the second storage chamber 47. The liquid storage box 10 stores refrigerating fluid, and the power line 21 is connected with external power supply equipment.
When the medical needle works, the medical staff inserts the microwave needle 23 into the part of the patient in which the cancer cells exist, then the microwave needle 23 is electrified, the microwave needle 23 emits high-frequency electromagnetic waves, so that the tissue in the range of the microwave needle 23 which is approximate to an ellipsoid is heated to sixty degrees centigrade, the cancer cells in the patient are directly killed through high temperature, the microwave needle 23 is powered off after the use, the microwave needle 23 stops emitting the high-frequency electromagnetic waves, and then the microwave needle 23 is taken out from the patient.
When the microwave needle 23 emits the high frequency electromagnetic wave, it is necessary to limit the direction of the high frequency electromagnetic wave to protect the safety of normal cells, first insert the microwave needle 23 into the portion of the patient where cancer cells exist, then start the hole-expanding motor 31 to drive the fixed gear 34 to rotate by the motor shaft 36, since the rotating ring gear 32 is in a fixed state, the surrounding gear 35 performs a circular motion around the fixed gear 34, thereby driving the shielding rod 22 to perform a circular motion by the connecting shaft 33, further driving the microwave needle 23 to perform a circular motion by the clamping rod 24, thereby expanding the opening of the microwave needle 23 inserted into the patient, then start the driving motor 41 to drive the threaded rod 42 to rotate, thereby moving the first sliding plate 48 in the direction close to the microwave needle 23, and simultaneously moving the sliding rod 51 and the buffer spring 54 by the first sliding plate 48, since the buffer spring 54 generates a reverse force after being pressed, thereby driving the fixed rod 52 to move in the same direction as the moving direction of the sliding rod 51, thereby driving the second sliding plate 44 to move the second sliding plate 45 in the direction close to the microwave needle 23, when the second sliding plate 44 moves to the range of the needle 23, and then the needle 23 moves to the range of the first sliding plate 46, and then the needle 23, so as the needle 23 moves to close to the first sliding plate, when the needle chamber, and the needle chamber, when the needle chamber 23, then the needle chamber 23, the needle chamber 23 is compressed by the needle chamber, and the needle chamber 23, and the needle chamber is closed, at this time, the high-frequency electromagnetic waves are reflected by the portion covered by the second shielding plate 45 and the first shielding plate 46, at this time, the tissues in the directions of the second shielding plate 45 and the first shielding plate 46 cannot be heated, meanwhile, the micro water pump 12 is started, so that the cooling liquid in the liquid storage tank 10 flows into the heat dissipation water pipe 15 from the water inlet pipe 13, and then flows into the liquid storage tank 10 again through the water outlet pipe 14, when the cooling liquid flows through the heat dissipation water pipe 15, the heat on the tissues in the directions of the first shielding plate 46, the second shielding plate 45 and the first shielding plate 46 is taken away, the temperature of the cooling liquid is increased at this time, when the temperature of the cooling liquid is higher than the body temperature of the patient, the fan motor 19 is started, so as to drive the heat dissipation fan 17 to rotate at a high speed, so as to take the heat of the cooling liquid in the liquid storage tank 10 out through the sealing heat dissipation fins 16, so as to ensure that the temperature of the cooling liquid is kept at a state lower than the body temperature of the patient, so as to protect the normal tissues of the patient from being damaged by the high temperature, after the treatment is finished, the driving motor 41 to reversely rotate, so as to make the first shielding plate 46 and then to reset the needle 23 to be pulled out of the patient.
Claims (5)
1. An ablation needle capable of changing a heating angle, characterized in that: the device comprises a cooling device (1), a main control rod (20), a reaming device (3), a blocking device (4), a connecting device (5) and a power line (21) which is arranged on the main control rod (20) and is connected with external power supply equipment;
a shielding rod (22) is arranged at one end of the main control rod (20) in a sliding mode, a microwave needle head (23) is arranged at one end, away from the main control rod (20), of the shielding rod (22), and high-frequency electromagnetic waves are emitted to the periphery after the microwave needle head (23) is electrified;
the cooling device (1) is fixedly arranged at one end, far away from the shielding rod (22), of the main control rod (20) through the support rod (11), the cooling device (1) is used for cooling human tissues in contact with the shielding device (4), the reaming device (3) is arranged in the main control rod (20) and connected with the shielding rod (22), the reaming device is used for enlarging holes, which are formed by the microwave needle heads (23) for puncturing the human tissues, in the shielding rod (22), the shielding device (4) is arranged in the shielding rod (22) and used for shielding high-frequency electromagnetic waves emitted by the microwave needle heads (23), and the connecting device (5) is fixedly arranged in the shielding device (4) and used for connecting the shielding device (4);
the blocking device (4) comprises a first storage chamber (43) arranged in the blocking rod (22), a first sliding plate (48) arranged in the first storage chamber (43) in a sliding mode, a first blocking plate (46) fixed on one side, far away from the main control rod (20), of the first sliding plate (48), and a driving motor (41) fixed in the end wall of one side, close to the main control rod (20), of the first storage chamber (43);
one end, far away from the first sliding plate (48), of the first shielding plate (46) extends out of the first storage cavity (43), the first shielding plate (46) is in sliding connection with the shielding rod (22), a threaded rod (42) is connected to the driving motor (41) through power, one end, far away from the main control rod (20), of the threaded rod (42) is rotatably connected with the end wall of the first storage cavity (43), and the threaded rod (42) penetrates through the first sliding plate (48) and is in threaded connection with the first sliding plate (48);
the blocking device (4) further comprises a second storage cavity (47) arranged in the main control rod (20), a second sliding plate (44) arranged in the second storage cavity (47) in a sliding mode, and a second blocking plate (45) fixed to one side, far away from the blocking rod (22), of the second sliding plate (44);
one end, far away from the second sliding plate (44), of the second shielding plate (45) extends out of the second storage cavity (47), the second shielding plate (45) is connected with the main control rod (20) in a sliding mode, and the first sliding plate (48) is connected with the second sliding plate (44) through a connecting device (5);
the connecting device (5) comprises a sliding rod (51) fixed on one side of the first sliding plate (48) far away from the main control rod (20), a fixed rod (52) fixed on one side of the second sliding plate (44) close to the shielding rod (22), a sliding cavity (53) arranged in the sliding rod (51) and a buffer spring (54) arranged in the sliding cavity (53);
one end, close to the sliding rod (51), of the fixing rod (52) is connected with the sliding cavity (53) in a sliding mode, one end, located in the sliding cavity (53), of the fixing rod (52) is fixedly connected with the buffer spring (54), one end, far away from the fixing rod (52), of the buffer spring (54) is fixedly connected with the end wall, far away from the fixing rod (52), of one side of the sliding cavity (53), the sliding rod (51) is connected with the shielding rod (22) in a sliding mode, and the sliding rod (51) is connected with the main control rod (20) in a sliding mode.
2. The ablation needle with changeable heating angle according to claim 1, wherein: reaming device (3) including fixed reaming motor (31) that sets up in master control pole (20), rotate and set up and be close to planet wheel mechanism (3 a) and one end that shelter from pole (22) one side at reaming motor (31) and be connected with planet wheel mechanism (3 a), the other end with shelter from pole (22) fixed connection's connecting axle (33).
3. The ablation needle with changeable heating angle according to claim 2, wherein: planet wheel mechanism (3 a) encircle gear (35) and with fixed gear (34) of ring gear (32) axis coincidence including fixed ring gear (32), the inboard meshing of ring gear (32) of setting in master control pole (20), one side that fixed gear (34) are close to reaming motor (31) is fixed with motor shaft (36), and motor shaft (36) and reaming motor (31) power are connected, encircle one side and connecting axle (33) fixed connection that reaming motor (31) were kept away from to gear (35).
4. The ablation needle with changeable heating angle according to claim 1, wherein: the cooling device (1) comprises a liquid storage tank (10) which is fixedly connected with the support rod (11) and is hollow inside, a sealing radiating fin (16) arranged in the inner space of the liquid storage tank (10), a water inlet pipe (13) and a water outlet pipe (14) which are arranged on one side of the liquid storage tank (10) close to the support rod (11) and are communicated with the inner space of the liquid storage tank (10), and a radiating fan (17) which is arranged on one side of the sealing radiating fin (16) far away from the support rod (11);
an opening communicated with the outside is formed in the end wall of one side, far away from the supporting rod (11), of the inner space of the liquid storage box (10), a support (18) is fixed in the opening, a fan motor (19) is fixed in the support (18), the fan motor (19) is fixedly connected with the heat dissipation fan (17), and the opening is not completely closed by the support (18).
5. The ablation needle with changeable heating angle according to claim 4, wherein: the cooling device (1) is still including installing miniature pump (12) that first storage chamber (43) is close to main control pole (20) one side and alternate heat dissipation water pipe (15) of setting in first shielding plate (46) inside, miniature pump (12) keep being connected with inlet tube (13) and outlet pipe (14) respectively, and the one end that main control pole (20) was kept away from in inlet tube (13) and outlet pipe (14) communicates with the both ends of heat dissipation water pipe (15) respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111181564.6A CN113796954B (en) | 2021-10-11 | 2021-10-11 | Ablation needle capable of changing heating angle |
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| CN202111181564.6A CN113796954B (en) | 2021-10-11 | 2021-10-11 | Ablation needle capable of changing heating angle |
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| CN113796954A CN113796954A (en) | 2021-12-17 |
| CN113796954B true CN113796954B (en) | 2023-03-28 |
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| CN114271936B (en) * | 2021-12-29 | 2024-03-08 | 烟台龙驰光电技术有限公司 | Automatic temperature regulation and control laser ablation needle |
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