CN113729931A - Ablation catheter propulsion device - Google Patents

Abstract

Translated fromChinese

本发明涉及医疗器械技术领域，具体涉及一种消融导管推进装置。具体技术方案为：一种消融导管推进装置，包括呈喇叭状的吸附罩，所述吸附罩的顶部设置有固定筒，所述固定筒的侧壁上开设有弧形孔，所述固定筒内设置有贯穿固定筒和吸附罩的导管，所述固定筒内、与所述弧形孔对应的所述导管上转动设置有内部中空的活动蜗杆，所述固定筒的内壁上设置有驱动所述活动蜗杆转动的驱动组件，所述固定筒的外侧壁上、位于所述弧形孔的位置上套设有与驱动组件相配合的转动环。本发明解决了现有技术中无法准确控制导管上的电极与病灶部位接触的问题。The invention relates to the technical field of medical devices, in particular to an ablation catheter propulsion device. The specific technical scheme is as follows: an ablation catheter propulsion device, comprising a horn-shaped adsorption cover, a fixed cylinder is arranged on the top of the adsorption cover, and an arc-shaped hole is opened on the side wall of the fixed cylinder. A guide tube is arranged to penetrate through the fixed cylinder and the adsorption cover. Inside the fixed cylinder, the guide tube corresponding to the arc-shaped hole is rotatably provided with an internally hollow movable worm, and the inner wall of the fixed cylinder is provided with a drive the In the drive assembly for the rotation of the movable worm, a rotating ring matched with the drive assembly is sleeved on the outer side wall of the fixed cylinder at the position of the arc hole. The invention solves the problem in the prior art that the electrode on the catheter cannot be accurately controlled to contact the lesion site.

Description

Ablation catheter propulsion device

Technical Field

The invention relates to the technical field of medical instruments, in particular to an ablation catheter propulsion device.

Background

Microwave ablation involves the application of high frequency electromagnetic waves for the treatment of a variety of conditions, including tumors in or of organs, such as the liver, brain, lungs, kidneys, and the like. When treating the pathological changes of the parts, the catheter is directly punctured to the focus part and then under the action of a microwave field, so that the purpose of treatment is achieved.

During the treatment, the electrode on the catheter is generally manually operated by a doctor to contact with the lesion site, so as to perform ablation treatment. However, the doctor operates the catheter to contact the lesion site, and relies heavily on the clinical experience of the doctor. For doctors with less experience, when operating the catheter, the contact between the catheter and the focus part cannot be accurately controlled. Therefore, in view of the above problems, the present invention discloses a catheter advancing device.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an ablation catheter propulsion device, which solves the problem that the contact between an electrode on a catheter and a focus part cannot be accurately controlled in the prior art.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the invention discloses an ablation catheter propulsion device which comprises a horn-shaped adsorption cover, wherein a fixed cylinder is arranged at the top of the adsorption cover, an arc-shaped hole is formed in the side wall of the fixed cylinder, a catheter penetrating through the fixed cylinder and the adsorption cover is arranged in the fixed cylinder, a movable worm with a hollow inner part is rotatably arranged on the catheter, which corresponds to the arc-shaped hole, in the fixed cylinder, a driving assembly for driving the movable worm to rotate is arranged on the inner wall of the fixed cylinder, and a rotating ring matched with the driving assembly is sleeved on the outer side wall of the fixed cylinder and positioned in the arc-shaped hole.

Preferably, an inner gear ring is arranged in the inner ring of the rotating ring, an annular supporting plate is arranged at the bottom of the rotating ring, a positioning cylinder is arranged at the bottom of the supporting plate, a limiting protrusion is arranged on the inner wall of the positioning cylinder, an annular limiting groove corresponding to the limiting protrusion is arranged on the outer wall of the fixed cylinder, and the limiting protrusion is arranged in the limiting groove.

Preferably, the driving assembly comprises a lifting ring arranged on the inner wall of the fixed cylinder, a driving rod penetrates through the lifting ring, one end of the fixed rod is supported on the lifting ring through a baffle, and the other end of the fixed rod is provided with a fixed worm meshed with the worm teeth on the movable worm; and the driving rod is provided with a gear set driven by an inner gear ring.

Preferably, the gear set comprises a fixed gear fixed on the driving rod, a movable gear respectively engaged with the fixed gear and the inner gear ring is arranged between the fixed gear and the inner gear ring, and the movable gear is rotatably arranged on the fixed rod through a connecting rod.

Preferably, the connecting rod is "L" shape, and its horizontal portion cover is established and rotate on the dead lever and connect, and vertical portion runs through loose gear's axle center to rotate with loose gear and be connected, the tip that the loose gear was stretched out to vertical portion of connecting rod is provided with the backing plate, the top of connecting rod is passed through the fixed column and is fixed at the interior top in arc hole.

Preferably, an auxiliary worm is rotatably arranged in the fixed cylinder through a support frame in an Contraband shape, and the auxiliary worm and the fixed worm are positioned on the same plane.

Preferably, a circle of balls rotating on the inner wall of the movable worm are respectively arranged on the inner walls of the movable worm close to the two ends of the movable worm, and the balls are abutted to the outer wall of the guide pipe.

Preferably, be provided with the round gasbag in the adsorption cover, be close to its junction with the solid fixed cylinder, be provided with respectively on the outer wall of adsorption cover with gasbag and the adsorption cover in the trachea of intercommunication, two tracheal other end is connected on the valve member, the opposite side intercommunication of valve member has the hose, be connected with the vacuum pump on the hose.

Preferably, the valve assembly comprises a valve body and a pipeline penetrating through the valve body, a main pipeline communicated with the pipeline is arranged on one side of the valve body, one ends of the two air pipes are respectively connected to two ends of the pipeline, and a control piece for controlling the opening and closing of the two air pipes is arranged on the valve body.

Preferably, the control piece is including setting up the support frame in valve body one side, be connected with the bracing piece parallel with the pipeline through the pivot rotation on the support frame, the both ends of bracing piece articulate there is the closing plate, the closing plate inserts in the valve body and stretches into in the pipeline.

The invention has the following beneficial effects:

the invention fixes the adsorption cover on the human body and fixes the traction syringe which is penetrated into the human body and left outside through the adsorption cover and the air bag arranged in the adsorption cover. Then, a movable worm is rotatably connected on the catheter penetrating into the fixed cylinder and is driven by the fixed worm arranged in the fixed cylinder, so that the length of the catheter extending into the human body is controlled, and the position of an electrode on the catheter reaching a focus is accurately controlled.

Drawings

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

FIG. 2 is a view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of a connecting structure of the fixed cylinder and the adsorption cover;

FIG. 4 is a schematic view of a rotating ring structure;

FIG. 5 is a schematic view of a movable worm;

FIG. 6 is a schematic view of a driving assembly;

FIG. 7 is a schematic view of a valve assembly construction;

FIG. 8 is a view taken along line B-B of FIG. 7;

in the figure: the device comprises an adsorption cover 1, afixed cylinder 2, an arc-shaped hole 3, aguide pipe 4, amovable worm 5, a rotatingring 6, aninner gear ring 7, a supportingplate 8, a positioning cylinder 9, alimiting protrusion 10, a limiting groove 11, ahanging ring 12, adriving rod 13, afixed worm 14, afixed gear 15, amovable gear 16, a connectingrod 17, abase plate 18, afixed column 19, a supportingframe 20, anauxiliary worm 21, aball 22, anair bag 23, anair pipe 24, ahose 25, avalve body 26, apipeline 27, amain pipeline 28, asupport 29, a supportingrod 30, asealing plate 31, abaffle 32 and aninsertion column 33.

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.

Unless otherwise indicated, the technical means used in the examples are conventional means well known to those skilled in the art.

Referring to fig. 1-8, the invention discloses an ablation catheter propulsion device, which comprises a horn-shaped adsorption cover 1, wherein the adsorption cover 1 is made of rubber and is used for being adsorbed on the surface of a human body, so that the propulsion device is fixed. The top of adsorbing cover 1 is provided with solid fixedcylinder 2, and solid fixedcylinder 2 inside cavity communicates with each other with adsorbing the cover, has seted uparc hole 3 on the lateral wall of solid fixedcylinder 2, is provided with thepipe 4 that runs through solid fixedcylinder 2 and adsorb cover 1 in the solid fixedcylinder 2, andpipe 4 is for melting the pipe, passes solid fixedcylinder 2 and adsorbs cover 1 in proper order, until inserting in the human body. The specific structure of the adsorption cover 1 adsorbed on the human body is as follows: a circle ofair bags 23 are arranged in the adsorption cover 1 and close to the connection part of the adsorption cover and the fixedcylinder 2,air pipes 24 which are respectively communicated with theair bags 23 and the adsorption cover 1 are arranged on the outer wall of the adsorption cover 1, the other ends of the twoair pipes 24 are connected to a valve component, the other side of the valve component is communicated with ahose 25, and a vacuum pump is connected to thehose 25. The vacuum pump is a dual-purpose vacuum pump for pumping and blowing. During air blowing, an air pipe communicated with theair bag 23 is communicated with thehose 25 by adjusting the valve assembly, the vacuum pump is started to blow air into theair bag 23, and the inner ring of the air bag is fixed at the pipe opening of the traction syringe (the dotted line in figure 1 represents the traction syringe), so that the purpose of fixing the traction syringe is achieved. Then, the air pipe communicated with the adsorption cover 1 is communicated with thehose 25 by adjusting the valve component, the vacuum pump is started to pump out the air in the adsorption cover, a closed space is formed in the adsorption cover due to the fact that the traction needle cylinder is fixed with the air bag, and when the air in the adsorption cover is pumped out, the adsorption cover is adsorbed on a human body, so that the adsorption cover and the traction needle cylinder are fixed. When the vacuum pump is disconnected with the hose, a sealing plug is inserted into the tail end of the hose, so that air is prevented from entering the adsorption cover or escaping from the air bag.

Specifically, the method comprises the following steps: the valve assembly comprises avalve body 26 and apipeline 27 penetrating through thevalve body 26, thepipeline 27 penetrates through the center of thevalve body 26 in the length direction, amain pipeline 28 communicated with thepipeline 27 is arranged on one side of thevalve body 26, a pipe orifice of themain pipeline 28 extending into thevalve body 26 is preferably arranged in the center of thepipeline 27, one ends of the twoair pipes 24 are respectively connected with two ends of thepipeline 27, and a control piece for controlling the opening and closing of the twoair pipes 24 is arranged on thevalve body 26. It should be noted that: two ends of thepipeline 27 are respectively connected with anair pipe 24, and the other ends of the two air pipes are respectively communicated with theair bag 23 and the adsorption cover 1. The control member controls whether themain conduit 28 communicates with the air tube communicating with the air bag or with the air tube communicating with the suction mask.

Specifically, the method comprises the following steps: the control piece comprises abracket 29 arranged on one side of thevalve body 26, asupport rod 30 parallel to thepipeline 27 is rotatably connected to thebracket 29 through a rotating shaft, two ends of thesupport rod 30 are hinged withsealing plates 31, and thesealing plates 31 are inserted into thevalve body 26 and extend into thepipeline 27. It should be noted that: thesealing plate 31 is rotatably connected with the two ends of the supportingrod 30 through a rotating shaft, and a hole for inserting the sealing plate is formed in the valve body and is matched with the sealing plate, so that gas is prevented from escaping from the hole. The sealing plate can seal thepipeline 27, so that different air pipes can be controlled to be communicated with the hose. The state shown by the sealing plate in fig. 7 is: the passages communicated with the two air pipes are closed, and the balance state of the support rod is broken only by pressing one end of thesupport rod 30, so that one of the pipelines communicated with the air pipes is opened, and then the air inflation of the air bag and the air suction of the adsorption cover are realized.

Furthermore, in order to facilitate the connection of the air pipe and the hose with the valve body,inserting columns 33 are fixed at the two ends of thepipeline 27 and the outlet of themain pipeline 28, theinserting columns 33 are hollow and communicated with the pipeline and the main pipeline, and clamping platforms are arranged on the circumferential direction of theinserting columns 33, so that the air pipe and the hose are well fixed with the valve body.

Further, rotate in the fixedcylinder 2, on thepipe 4 that corresponds witharc hole 3 and be provided with inside hollowmovable worm 5, be provided with drivemovable worm 5 pivoted drive assembly on the inner wall of fixedcylinder 2, the cover is equipped with and drives assembly matched withswivel becket 6 on the lateral wall of fixedcylinder 2, the position that is locatedarc hole 3. The connecting mode of theguide tube 4 and themovable worm 5 is as follows: theguide tube 4 passes through the axle center of themovable worm 5 and is arranged away from the inner wall of themovable worm 5, a circle ofballs 22 rotating on the inner wall of themovable worm 5 are respectively arranged on the inner walls of themovable worm 5 close to the two ends of the movable worm, and theballs 22 are abutted against the outer wall of theguide tube 4. I.e. theballs 22 are rotatable on the inner wall of themovable worm 5, while theballs 22 are in contact with the outer wall of theguide tube 4, when themovable worm 5 rotates, theguide tube 4 is not rotated but theguide tube 4 is driven to move in the vertical direction by theballs 22. The length of the movable worm rod is set according to actual needs.

Furthermore, aninner gear ring 7 is arranged in an inner ring of the rotatingring 6, an annular supportingplate 8 is arranged at the bottom of the rotatingring 6, a positioning cylinder 9 is arranged at the bottom of the supportingplate 8, alimiting protrusion 10 is arranged on the inner wall of the positioning cylinder 9, an annular limiting groove 11 corresponding to thelimiting protrusion 10 is arranged on the outer wall of the fixedcylinder 2, and thelimiting protrusion 10 is arranged in the limiting groove 11. It should be noted that: the rotatingring 6, the supportingplate 8 and the positioning cylinder 9 are all sleeved on the fixedcylinder 2, and theinner gear ring 7 on the rotatingring 6 corresponds to the arc-shaped hole 3. When the rotating ring rotates, thelimiting protrusion 10 rotates along the limiting groove 11, so that the rotating ring is prevented from moving in the vertical direction of the fixed cylinder, and the purpose of fixing the rotatingring 6 on the fixedcylinder 2 is achieved. The inner gear ring on the rotating ring is meshed with the driving component, so that the driving component drives themovable worm 5 to rotate, theguide tube 4 is driven to move up and down, the length of the guide tube extending into the human body is controlled, and the electrode on the guide tube accurately reaches a focus position.

Specifically, the method comprises the following steps: the driving assembly comprises alifting ring 12 arranged on the inner wall of the fixedcylinder 2, thelifting ring 12 is arranged above the arc-shaped hole 3, adriving rod 13 penetrates through thelifting ring 12, and thedriving rod 13 is arranged in parallel with themovable worm 5. The end of the drivingrod 13 passing through the hangingring 12 is supported on the hangingring 12 through thebaffle 32, i.e. thebaffle 32 abuts against the top of the hangingring 12, thereby preventing the drivingrod 13 from falling. The other end of the drivingrod 13 is fixedly provided with a fixedworm 14 meshed with the worm teeth on themovable worm 5; thedrive rod 13 is provided with a gear set driven by thering gear 7.

Specifically, the method comprises the following steps: the gear set comprises a fixedgear 15 fixed on the drivingrod 13, the fixedgear 15 is arranged above the fixedworm 14, amovable gear 16 meshed with the fixedgear 15 and theinner gear 7 respectively is arranged between the fixedgear 15 and theinner gear 7, and themovable gear 16 is rotatably arranged on the drivingrod 13 through a connectingrod 17. Themovable gear 16 is respectively meshed with theinner gear ring 7 and the fixedgear 15, when therotating ring 6 is rotated, themovable gear 16 is driven to rotate, themovable gear 16 drives the fixedgear 15 to rotate, the fixedgear 15 drives the drivingrod 13 and the fixedworm 14 fixed on the drivingrod 13 to rotate, themovable worm 5 is further driven to rotate, thecatheter 4 is driven to lift in the rotating process of themovable worm 5, the purpose of controlling the lifting of the catheter is further achieved, and therefore medical workers can drive the electrode on the catheter to reach a focus part by operating the rotating ring.

Wherein, connectingrod 17 is "L" shape, and its horizontal portion cover is established on actuatinglever 13 and rotate the connection, is provided with the through-hole on connectingrod 17 horizontal portion promptly, and actuatinglever 13 passes this through-hole to set up apart from each other. And the vertical portion of connectingrod 17 then runs throughloose gear 16's axle center to rotate withloose gear 16 and be connected, the bottom that the vertical portion of connectingrod 17 stretches outloose gear 16 is provided withbacking plate 18, avoidsloose gear 16 to drop, and the top (the horizontal portion) of connectingrod 17 is fixed at the inside top inarc hole 3 through fixedcolumn 19, thereby fixes connectingrod 17.

Furthermore, anauxiliary worm 21 is rotatably arranged in the fixedcylinder 2 through asupport frame 20 in the shape of 'Contraband', theauxiliary worm 21 is sleeved on the vertical part of thesupport frame 20 and rotates on the vertical part, theauxiliary worm 21 is meshed with themovable worm 5, and theauxiliary worm 21 and the fixedworm 14 are positioned on the same plane. When the movable worm rotates, theauxiliary worm 21 is brought to rotate. The number of theauxiliary worms 21 is set according to actual needs, and meanwhile, theauxiliary worms 21 are set for enabling the guide pipe or themovable worm 5 to be always positioned at the center of the fixed cylinder, so that the movable worm and the fixed worm are prevented from being adjacent.

When the invention is used, the catheter passes through the movable worm and penetrates out of the adsorption cover, and the catheter is extended into the blood vessel of a human body by drawing the needle cylinder. Then, the adsorption cover is fixed on the human body by adopting the above-mentioned disclosed mode, namely the edge of the traction syringe is tightly propped against the air bag, so that a closed space is formed in the adsorption cover. Then the medical staff rotates the rotating ring, thereby adjusting the length of the catheter extending into the human body and enabling the electrode on the catheter to reach the focus position. It should be noted that: when the invention is used, medical staff manually extends the catheter into the blood vessel of a human body through the traction needle cylinder, so that the electrode of the catheter is installed to the focus soon, and the pushing device of the invention is installed, thereby accurately controlling the electrode to reach the focus position.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (10)

Translated fromChinese

1.一种消融导管推进装置，包括呈喇叭状的吸附罩(1)，其特征在于：所述吸附罩(1)的顶部设置有固定筒(2)，所述固定筒(2)的侧壁上开设有弧形孔(3)，所述固定筒(2)内设置有贯穿固定筒(2)和吸附罩(1)的导管(4)，所述固定筒(2)内、与所述弧形孔(3)对应的所述导管(4)上转动设置有内部中空的活动蜗杆(5)，所述固定筒(2)的内壁上设置有驱动所述活动蜗杆(5)转动的驱动组件，所述固定筒(2)的外侧壁上、位于所述弧形孔(3)的位置上套设有与驱动组件相配合的转动环(6)。1. An ablation catheter propulsion device, comprising a horn-shaped adsorption cover (1), characterized in that: the top of the adsorption cover (1) is provided with a fixed cylinder (2), and the side of the fixed cylinder (2) An arc-shaped hole (3) is opened on the wall, a conduit (4) passing through the fixing cylinder (2) and the adsorption cover (1) is arranged in the fixing cylinder (2), and the fixing cylinder (2) is connected with the The inner hollow movable worm (5) is rotatably provided on the guide tube (4) corresponding to the arc-shaped hole (3), and the inner wall of the fixed cylinder (2) is provided with a drive for driving the movable worm (5) to rotate. In the drive assembly, a rotating ring (6) matched with the drive assembly is sleeved on the outer side wall of the fixed cylinder (2) at the position of the arc-shaped hole (3).2.根据权利要求1所述的一种消融导管推进装置，其特征在于：所述转动环(6)的内圈中设置有内齿圈(7)，所述转动环(6)的底部设置有环形支撑板(8)，所述支撑板(8)的底部设置有定位筒(9)，所述定位筒(9)的内壁上设置有限位凸起(10)，所述固定筒(2)的外壁上设置有与限位凸起(10)相对应的环形限位槽(11)，所述限位凸起(10)置于限位槽(11)内。2. An ablation catheter propulsion device according to claim 1, characterized in that: an inner gear ring (7) is provided in the inner ring of the rotating ring (6), and a bottom of the rotating ring (6) is provided with a ring gear (7). There is an annular support plate (8), the bottom of the support plate (8) is provided with a positioning cylinder (9), the inner wall of the positioning cylinder (9) is provided with a limiting protrusion (10), the fixing cylinder (2) ) is provided with an annular limit groove (11) corresponding to the limit protrusion (10), and the limit protrusion (10) is placed in the limit groove (11).3.根据权利要求1所述的一种消融导管推进装置，其特征在于：所述驱动组件包括设置在固定筒(2)内壁上的吊环(12)，所述吊环(12)上贯穿设置有驱动杆(13)，所述驱动杆(13)的一端通过挡板支撑在吊环(12)上，另一端设置有与所述活动蜗杆(5)上的蜗齿相啮合的固定蜗杆(14)；所述驱动杆(13)上设置有由内齿圈(7)驱动的齿轮组。3. An ablation catheter propulsion device according to claim 1, characterized in that: the drive assembly comprises a lifting ring (12) arranged on the inner wall of the fixing cylinder (2), and the lifting ring (12) is provided with a piercing ring (12). A drive rod (13), one end of the drive rod (13) is supported on the hoisting ring (12) through a baffle plate, and the other end is provided with a fixed worm (14) engaged with the worm teeth on the movable worm (5) ; The drive rod (13) is provided with a gear set driven by the inner gear ring (7).4.根据权利要求3所述的一种消融导管推进装置，其特征在于：所述齿轮组包括固定在驱动杆(13)上的固定齿轮(15)，所述固定齿轮(15)和内齿圈(7)之间设置有分别与固定齿轮(15)和内齿圈(7)啮合的活动齿轮(16)，所述活动齿轮(16)通过连接杆(17)转动设置在驱动杆(13)上。4. An ablation catheter propulsion device according to claim 3, characterized in that: the gear set comprises a fixed gear (15) fixed on the drive rod (13), the fixed gear (15) and the inner teeth A movable gear (16) meshing with the fixed gear (15) and the inner gear (7) is arranged between the rings (7), and the movable gear (16) is rotatably arranged on the drive rod (13) through the connecting rod (17). )superior.5.根据权利要求4所述的一种消融导管推进装置，其特征在于：所述连接杆(17)呈“┏”形，其横部套设在所述驱动杆(13)上并转动连接，竖直部贯穿所述活动齿轮(16)的轴心，并与活动齿轮(16)转动连接，所述连接杆(17)的竖直部伸出活动齿轮(16)的端部设置有垫板(18)，所述连接杆(17)的顶部通过固定柱(19)固定在弧形孔(3)的内顶部。5. An ablation catheter propulsion device according to claim 4, characterized in that: the connecting rod (17) is in the shape of "┏", and its transverse part is sleeved on the driving rod (13) and is connected in rotation , the vertical part runs through the axis of the movable gear (16), and is rotatably connected with the movable gear (16). A plate (18), the top of the connecting rod (17) is fixed on the inner top of the arc-shaped hole (3) through a fixing column (19).6.根据权利要求3所述的一种消融导管推进装置，其特征在于：所述固定筒(2)内通过呈“匚”形的支撑架(20)转动设置有辅助蜗杆(21)，所述辅助蜗杆(21)与固定蜗杆(14)位于同一平面上。6. An ablation catheter propulsion device according to claim 3, characterized in that: an auxiliary worm (21) is rotatably arranged in the fixed cylinder (2) through a "crawl"-shaped support frame (20), so The auxiliary worm (21) and the fixed worm (14) are located on the same plane.7.根据权利要求1所述的一种消融导管推进装置，其特征在于：所述活动蜗杆(5)靠近其两端的内壁上分别设置有一圈在活动蜗杆(5)内壁上转动的滚珠(22)，所述滚珠(22)与导管(4)的外壁相抵。7. An ablation catheter propulsion device according to claim 1, characterized in that: the inner wall of the movable worm (5) near its two ends is respectively provided with a circle of balls (22) that rotate on the inner wall of the movable worm (5). ), the balls (22) abut against the outer wall of the conduit (4).8.根据权利要求1所述的一种消融导管推进装置，其特征在于：所述吸附罩(1)内、靠近其与固定筒(2)的连接处设置有一圈气囊(23)，所述吸附罩(1)的外壁上设置有分别与气囊(23)和吸附罩(1)内连通的气管(24)，两个所述气管(24)的另一端连接在阀门组件上，所述阀门组件的另一侧连通有软管(25)，所述软管(25)上连接有真空泵。8. An ablation catheter propulsion device according to claim 1, characterized in that: a ring of airbags (23) is arranged in the adsorption cover (1) near the connection between the adsorption cover (1) and the fixing cylinder (2). The outer wall of the adsorption cover (1) is provided with air pipes (24) respectively communicating with the airbag (23) and the adsorption cover (1), and the other ends of the two air pipes (24) are connected to the valve assembly, and the valve A hose (25) is communicated with the other side of the assembly, and a vacuum pump is connected to the hose (25).9.根据权利要求8所述的一种消融导管推进装置，其特征在于：所述阀门组件包括阀体(26)和贯穿阀体(26)设置的管路(27)，所述阀体(26)的一侧设置有与管路(27)相通的主管路(28)，两个所述气管(24)的一端分别连接在管路(27)的两端，所述阀体(26)上设置有控制两个所述气管(24)启闭的控制件。9. An ablation catheter propulsion device according to claim 8, characterized in that: the valve assembly comprises a valve body (26) and a pipeline (27) provided through the valve body (26), the valve body (26) 26) is provided with a main pipeline (28) communicating with the pipeline (27), one end of the two air pipes (24) are respectively connected to the two ends of the pipeline (27), and the valve body (26) A control member for controlling the opening and closing of the two trachea (24) is provided on it.10.根据权利要求9所述的一种消融导管推进装置，其特征在于：所述控制件包括设置在阀体(26)一侧的支架(29)，所述支架(29)上通过转轴转动连接有与管路(27)平行的支撑杆(30)，所述支撑杆(30)的两端铰接有密封板(31)，所述密封板(31)插入阀体(26)内并伸入到管路(27)内。10 . The ablation catheter propulsion device according to claim 9 , wherein the control member comprises a bracket ( 29 ) arranged on one side of the valve body ( 26 ), and the bracket ( 29 ) rotates through a rotating shaft. 11 . A support rod (30) parallel to the pipeline (27) is connected, two ends of the support rod (30) are hinged with sealing plates (31), and the sealing plates (31) are inserted into the valve body (26) and extend into the pipeline (27).

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