CN110115626B

CN110115626B - Adjustable double-temperature-sensor water injection type ablation needle

Info

Publication number: CN110115626B
Application number: CN201910426793.6A
Authority: CN
Inventors: 杨荣利; 黄炜; 董森
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-11-27
Anticipated expiration: 2039-05-22
Also published as: CN110115626A

Abstract

The invention relates to the technical field of ablation needles, in particular to an adjustable double-temperature-sensor water injection type ablation needle which comprises a holding handle, an adjusting knob arranged at one end of the holding handle, an ablation needle head arranged at one end of the adjusting knob and a sleeve sleeved on the outer wall of the ablation needle head. In this needle is ablated to two temperature sensor water injection types of adjustable nodal pattern, can carry out real-time supervision to the temperature that melts the central zone through the temperature sensor who melts and set up on the syringe needle, the thermocouple that sets up on the sleeve pipe simultaneously can carry out real-time supervision to the temperature that melts the marginal zone, be convenient for clearly judge the certainty nature of melting the effect, the ejector pin is through driving the cutting ferrule motion, and then change the sleeve pipe position of installing in the cutting ferrule inside, be convenient for adjust the position of sleeve pipe on melting the syringe needle according to the form of tumour, make the thermocouple on the adjusting sleeve pipe be located and melt marginal zone, can melt marginal zone's temperature to the accuse in real time, be convenient for melt in danger.

Description

Adjustable double-temperature-sensor water injection type ablation needle

Technical Field

The invention relates to the technical field of ablation needles, in particular to an adjustable double-temperature-sensor water injection type ablation needle.

Background

Radio frequency is a high frequency vibration with a frequency of up to 15 ten thousand times per second. The human body is a complex structure composed of many organic and inorganic substances, and body fluids contain a large amount of dielectrics, such as ions, water, colloidal particles, etc., and the human body mainly conducts current by means of ion movement. Under the action of high-frequency alternating current, the concentration change direction of ions changes back and forth along with the positive and negative half cycles of the current direction. Under high-frequency oscillation, ions between the two electrodes rapidly move along the direction of the electric line of force, and gradually change from a moving state to a vibration state. Due to the differences in size, mass, charge and mobility of the various ions, the ions rub against each other and collide with other particles to produce a biological thermal effect. Because of the poor heat dissipation of the tumor, the temperature of the tumor tissue is higher than that of the adjacent normal tissue, and the cancer cells are sensitive to high heat, so the cancer cells can be killed by the high heat, and the side effect is not generated.

Clinically, when a doctor carries out tumor ablation, the temperature of an ablation edge needs to be judged frequently, the temperature of one point can only be measured by a traditional single needle, the temperature of the ablation edge cannot be detected, the accuracy of an ablation effect cannot be judged clearly, and meanwhile, the temperature of the ablation edge cannot be controlled, so that ablation in a dangerous area is difficult. In view of this, we propose an adjustable dual temperature sensor water-filled ablation needle.

Disclosure of Invention

The invention aims to provide an adjustable double-temperature-sensor water injection type ablation needle, which solves the problems that the temperature of an ablation edge cannot be detected, the certainty of an ablation effect cannot be clearly judged, and the temperature of the ablation edge cannot be controlled, so that ablation is difficult to be carried out in a dangerous area in the background technology.

In order to achieve the purpose, the invention provides an adjustable double-temperature-sensor water injection type ablation needle which comprises a holding handle, an adjusting knob arranged at one end of the holding handle, an ablation needle head arranged at one end of the adjusting knob and a sleeve sleeved on the outer wall of the ablation needle head, wherein one end of the outer wall of the ablation needle head is provided with a temperature sensor, one side, close to the ablation needle head, of the inner wall of the sleeve is provided with a mounting groove, and a thermocouple is embedded in the inner wall of the mounting groove.

Preferably, the rotating part is installed at one end of the adjusting knob, the rotating part comprises a rotating ring installed on the outer wall of the adjusting knob, the holding handle is close to one side of the adjusting knob, an inserting ring is arranged on one side of the adjusting knob, a sliding groove is formed in the inner wall of the inserting ring, and the rotating ring is in sliding fit with the sliding groove.

Preferably, the outer wall of the swivel is provided with a plurality of inner grooves, and the inner grooves are rotatably connected with balls.

Preferably, the rotating part further comprises a connecting ring arranged on one side of the rotating ring, the outer wall of the connecting ring is provided with a plurality of first mounting blocks, the inner wall of the holding handle is further provided with a pushing part, the pushing part comprises a ball screw, a screw nut is connected to the ball screw in a threaded manner, one end of the ball screw is provided with a connecting disc, the outer wall of the connecting disc is provided with a plurality of second mounting blocks, and a transmission rod is arranged between the first mounting blocks and the second mounting blocks.

Preferably, the connecting disc is rotatably connected to the inner wall of the holding handle through a bearing disc.

Preferably, the outer surface of the screw nut is provided with a pair of telescopic sleeves, ejector rods are arranged in the telescopic sleeves, the sleeves are located at one ends inside the adjusting knobs, clamping sleeves are arranged on two sides of the clamping sleeves respectively, and bent pipes are integrally formed at one ends of the straight rods.

Preferably, one end of the ejector pin is mounted on the bent pipe.

Preferably, the inner wall of the connecting ring is further provided with a bearing ring, a limiting cylinder is arranged in the bearing ring, and the ejector rod penetrates through the limiting cylinder.

Preferably, the telescopic sleeve is formed by sleeving a plurality of hollow pipes, a guide groove is formed in the inner wall of each hollow pipe, and a guide block is arranged on the outer wall of each hollow pipe.

Preferably, the inner diameter of each of the hollow tubes is different.

Compared with the prior art, the invention has the beneficial effects that:

1. in this two temperature sensor water injection type of adjustable nodal pattern ablation needle, can carry out real-time supervision to the temperature that melts the central zone through melting the temperature sensor that sets up on the syringe needle, the thermocouple that sets up on the sleeve pipe simultaneously can carry out real-time supervision to the temperature that melts the marginal zone, is convenient for clearly judge the certainty nature of melting the effect.

2. In this needle is ablated to two temperature sensor water injection types of adjustable nodal pattern, the ejector pin is through driving the cutting ferrule motion, and then changes the sleeve pipe position of installing in the cutting ferrule inside, is convenient for adjust the position of sleeve pipe on melting the syringe needle according to the form of tumour for thermocouple on the adjusting sleeve pipe is located melts marginal zone, can be in real time melt marginal zone's temperature to the accuse, is convenient for melt in dangerous area.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of an ablation needle configuration of the present invention;

FIG. 3 is a schematic view of the construction of the bushing of the present invention;

FIG. 4 is a schematic view of a grip handle and ablation needle mounting arrangement of the present invention;

FIG. 5 is one of the structural views of the rotating member of the present invention;

FIG. 6 is a schematic view of a grip handle according to the present invention;

FIG. 7 is a second structural view of the rotating member of the present invention;

FIG. 8 is one of the pusher member configurations of the present invention;

FIG. 9 is a second drawing of the pusher member of the present invention;

FIG. 10 is a schematic view of a ferrule and ferrule mounting arrangement of the present invention;

FIG. 11 is a schematic view of a rotating member according to the present invention;

fig. 12 is a schematic structural view of the telescopic tube of the present invention.

In the figure: 1. holding the handle; 11. inserting a ring; 12. a chute; 2. adjusting a knob; 3. an ablation needle; 31. a temperature sensor; 4. a sleeve; 41. mounting grooves; 42. a thermocouple; 43. a card sleeve; 44. a straight rod; 45. bending a rod; 5. a rotating member; 51. rotating the ring; 52. an inner tank; 53. a ball bearing; 54. a connecting ring; 55. a bearing ring; 56. a first mounting block; 57. a limiting cylinder; 6. a pusher member; 61. a ball screw; 611. rotating the groove; 62. a lead screw nut; 621. a telescopic sleeve; 6211. a hollow tube; 6212. a guide groove; 6213. a guide block; 622. a top rod; 63. a connecting disc; 66. a bearing disk; 64. a second mounting block; 65. and a transmission rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

On one hand, the invention provides an adjustable double-temperature-sensor water injection type ablation needle, which comprises a holding handle 1, an adjusting knob 2 installed at one end of the holding handle 1, an ablation needle head 3 arranged at one end of the adjusting knob 2 and a sleeve 4 sleeved on the outer wall of the ablation needle head 3, wherein one end of the outer wall of the ablation needle head 3 is provided with a temperature sensor 31, one side of the inner wall of the sleeve 4, which is close to the ablation needle head 3, is provided with an installation groove 41, and the inner wall of the installation groove 41 is embedded with a thermocouple 42, as shown in fig. 1-.

In this embodiment, the temperature sensor 31 can be made of MFP-4B type temperature sensor manufactured by Shenzhen Jinjinjingzi electronic technology Limited, the matching circuit and the electric element can be provided by the manufacturer, the temperature sensor 31 is an NTC thermistor temperature sensor, the working range is-30 degrees- +150 degrees, and the material is small and exquisite, and the temperature sensor is suitable for being installed on the surface of the ablation needle 3.

Further, the thermocouple 42 can be a fine thermocouple, and the fine thermocouple material of the present embodiment is preferably constantan wire with a diameter of 0.08mn, so that the thermocouple 42 has a sufficiently fine overall size to be embedded in the casing 4 for measurement.

The two temperature sensor water injection type of adjustable type of this embodiment melt the needle when using, will melt syringe needle 3 and pierce and melt the region, can carry out real-time supervision to the temperature that melts central zone through melting the temperature sensor 31 that sets up on the syringe needle 3, and the thermocouple 42 that sets up on the sleeve pipe 4 simultaneously can carry out real-time supervision to the temperature that melts marginal zone, is convenient for clearly judge the certainty nature of melting the effect.

Example 2

In order to facilitate the rotation of the adjusting knob 2 on the holding handle 1, the person of the present invention further provides a rotating member 5, as a preferred embodiment, as shown in fig. 4-6, one end of the adjusting knob 2 is provided with the rotating member 5, the rotating member 5 comprises a rotating ring 51 mounted on the outer wall of the adjusting knob 2, one side of the holding handle 1 close to the adjusting knob 2 is provided with an inserting ring 11, the inner wall of the inserting ring 11 is provided with a sliding groove 12, and the rotating ring 51 is in sliding fit with the sliding groove 12.

In this embodiment, a plurality of inner grooves 52 are formed in the outer wall of the swivel 51, balls 53 are rotatably connected to the inner grooves 52, and the balls 53 are arranged on the outer surface of the swivel 51, so that when the swivel 51 slides in the slide groove 12, the balls 53 rotate in the inner grooves 52, thereby reducing the friction force when the swivel 51 slides in the slide groove 12.

Further, adjust knob 2 and swivel 51 closely bond for adjust knob 2 and swivel 51 are connected closely, can drive swivel 51's rotation through adjust knob 2's rotation.

Specifically, the adjusting knob 2 and the rotating part 5 are in a communicated state, so that the ablation needle head 3 and the sleeve 4 can penetrate through one side of the adjusting knob 2 and enter the holding handle 1 through one side of the rotating part 5.

The adjust knob 2 of the adjustable double-temperature-sensor water injection type ablation needle of the embodiment is when using, an operator holds the handle 1 with one hand and rotates the adjust knob 2 with the other hand, at the moment, the rotating ring 51 slides in the sliding groove 12, so that the adjust knob 2 rotates on the handle 1, when the rotating ring 51 slides in the sliding groove 12, the plurality of balls 53 rotate in the inner groove 52, and the friction force of the rotating ring 51 during sliding in the sliding groove 12 is reduced.

Example 3

In the specific implementation process, since tumors have different forms, in the operation, it is necessary to continuously detect the temperature of the ablation edge region, and especially, when a dangerous region is ablated, it is significant to detect the temperature of the ablation edge region, as a preferred embodiment, as shown in fig. 7-11, the rotating member 5 further includes a connecting ring 54 installed at one side of the rotating ring 51, the outer wall of the connecting ring 54 is provided with a plurality of first mounting blocks 56, the inner wall of the handle 1 is further provided with a pushing member 6, the pushing member 6 includes a ball screw 61, the ball screw 61 is in threaded connection with a screw nut 62, one end of the ball screw 61 is provided with a connecting disc 63, the outer wall of the connecting disc 63 is provided with a plurality of second mounting blocks 64, a transmission rod 65 is installed between the first mounting block 56 and the second mounting block 64, the outer surface of the screw nut 62 is provided with a pair of telescopic sleeves 621, a push rod, a cutting sleeve 43 is installed at one end of the sleeve 4 positioned inside the adjusting knob 2, a straight rod 44 is respectively arranged at two sides of the cutting sleeve 43, and a bent pipe 45 is integrally formed at one end of the straight rod 44.

In this embodiment, the connection plate 63 is rotatably connected to the inner wall of the grip 1 through the bearing plate 66, and the other end of the bearing plate 66 is attached to the connection plate 63, so that the ball screw 61 rotates in the grip 1.

Further, one end of the ejector rod 622 is mounted on the elbow 45, the elbow 45 can be ejected through the ejector rod 622, and then the sleeve clamp 43 is driven by the elbow 45 to move, so that the position of the sleeve 4 on the ablation needle head 3 can be conveniently adjusted.

Specifically, the cutting ferrule 43 is the hollow cylindrical shape in inside, and is convenient for block the cutting ferrule 43 on adjusting sleeve 4, and the cutting ferrule 43 closely bonds with adjusting sleeve 4 simultaneously for cutting ferrule 43 and adjusting sleeve 4 are connected closely, drive adjusting sleeve 4 through cutting ferrule 43 and move.

In addition, a bearing ring 55 is further mounted on the inner wall of the connecting ring 54, a limiting cylinder 57 is arranged in the bearing ring 55, the ejector rod 622 penetrates through the limiting cylinder 57, the connecting ring 54 is mounted on the outer ring of the bearing ring 55, the limiting cylinder 57 is mounted on the inner wall of the inner ring of the bearing ring 55, when the connecting ring 54 rotates, the bearing ring 55 rotates, the inner ring is stored to be not rotated, and then the position of the limiting cylinder 57 is fixed.

Besides, the ball screw 61 is further provided with a rotating groove 611, and one end of the ablation needle 3 is arranged in the rotating groove 611, so that the ablation needle 3 is fixed.

When the adjustable double-temperature-sensor water-injection type ablation needle of the embodiment adjusts the sleeve 4, the adjusting knob 2 is rotated, the adjusting knob 2 drives the rotating ring 51 and the connecting ring 54 to rotate, when the connecting ring 54 rotates, the first mounting block 56 on the connecting ring 54 drives the second mounting block 64 on the bearing disc 66 to rotate through the transmission rod 65, so that the bearing disc 66 rotates and drives the ball screw 61 to rotate, at this time, the screw nut 62 linearly moves on the ball screw 61, the telescopic sleeve 621 moves through the screw nut 62, so that the ejector rod 622 moves, one end of the ejector rod 622 is mounted on the curved rod 45, so that the ejector rod 622 moves through driving the cutting ferrule 43, further the position of the sleeve 4 mounted inside the cutting ferrule 43 is changed, the position of the sleeve 4 on the ablation needle 3 is conveniently adjusted according to the form of a tumor, so that the thermocouple 42 on the adjusting sleeve 4 is located in the ablation edge region, the temperature of the ablation edge area can be controlled in real time, and ablation in a dangerous area is facilitated.

Example 4

As a fourth embodiment of the present invention, in order to ensure the stable movement of the top rod 622, the present inventor further provides a telescopic tube 621, as shown in fig. 12, as a preferred embodiment, the telescopic tube 621 is formed by sleeving a plurality of hollow tubes 6211, a guide groove 6212 is opened on the inner wall of each hollow tube 6211, and a guide block 6213 is installed on the outer wall of each hollow tube 6211.

In this embodiment, the inner diameters of the hollow tubes 6211 are different, and the inner diameters of the hollow tubes 6211 are gradually reduced from the screw nut 62 side, so that the hollow tubes 6211 are sequentially sleeved together.

Further, in the two adjacent hollow tubes 6211, the hollow tube 6211 with the smaller inner diameter is sleeved in the hollow tube 6211 with the larger inner diameter, and the guide block 6213 on the outer wall of the hollow tube 6211 with the smaller inner diameter slides in the guide groove 6212 on the inner wall of the hollow tube 6211 with the larger inner diameter, so that the hollow tube 6211 is prevented from slipping.

Further, the ejector rod 622 sequentially passes through the hollow tubes 6211, the ejector rod 622 is fixed to the screw nut 62, and the outer wall of the ejector rod 622 is provided with the hollow tubes 6211, so that the stability of the ejector rod 622 during movement can be guaranteed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Adjustable type double temperature sensor water injection type melts needle, including holding handle (1), installing adjust knob (2), the setting of holding handle (1) one end are in the ablation syringe needle (3) and the cover of adjust knob (2) one end are established sleeve pipe (4) on ablation syringe needle (3) outer wall, its characterized in that: a temperature sensor (31) is installed at one end of the outer wall of the ablation needle head (3), an installation groove (41) is formed in one side, close to the ablation needle head (3), of the inner wall of the sleeve (4), and a thermocouple (42) is embedded in the inner wall of the installation groove (41); one end of the adjusting knob (2) is provided with a rotating part (5), the rotating part (5) comprises a rotating ring (51) arranged on the outer wall of the adjusting knob (2), one side, close to the adjusting knob (2), of the holding handle (1) is provided with an inserting ring (11), the inner wall of the inserting ring (11) is provided with a sliding groove (12), and the rotating ring (51) is in sliding fit with the sliding groove (12); a plurality of inner grooves (52) are formed in the outer wall of the rotating ring (51), and balls (53) are rotatably connected in the inner grooves (52); the rotating part (5) further comprises a connecting ring (54) arranged on one side of the rotating ring (51), a plurality of first mounting blocks (56) are arranged on the outer wall of the connecting ring (54), a pushing part (6) is further arranged on the inner wall of the holding handle (1), the pushing part (6) comprises a ball screw (61), a screw nut (62) is connected to the ball screw (61) in a threaded mode, a connecting disc (63) is arranged at one end of the ball screw (61), a plurality of second mounting blocks (64) are arranged on the outer wall of the connecting disc (63), and a transmission rod (65) is arranged between the first mounting blocks (56) and the second mounting blocks (64); the connecting disc (63) is rotatably connected to the inner wall of the holding handle (1) through a bearing disc (66); a pair of telescopic sleeves (621) are mounted on the outer surface of the lead screw nut (62), an ejector rod (622) is arranged in each telescopic sleeve (621), a clamping sleeve (43) is mounted at one end, located inside the adjusting knob (2), of each sleeve (4), straight rods (44) are arranged on two sides of each clamping sleeve (43), and bent pipes (45) are integrally formed at one ends of the straight rods (44); one end of the ejector rod (622) is mounted on the bent pipe (45).

2. The adjustable dual temperature sensor water-filled ablation needle of claim 1, wherein: and a bearing ring (55) is further mounted on the inner wall of the connecting ring (54), a limiting cylinder (57) is arranged in the bearing ring (55), and the ejector rod (622) penetrates through the limiting cylinder (57).

3. The adjustable dual temperature sensor water-filled ablation needle of claim 2, wherein: the telescopic sleeve (621) is formed by sleeving a plurality of hollow pipes (6211), a guide groove (6212) is formed in the inner wall of each hollow pipe (6211), and a guide block (6213) is installed on the outer wall of each hollow pipe (6211).

4. The adjustable dual temperature sensor water-filled ablation needle of claim 3, wherein: the inner diameter of each hollow tube (6211) is different.