CN213552270U - Pulmonary vein electrical isolation balloon structure - Google Patents

Abstract

The utility model discloses a pulmonary vein electricity isolation sacculus structure, through set up a bellows between annular sacculus and No. two annular sacculus, set up a connecting pipe and No. two connecting pipes in the outside of bellows, and make a connecting pipe and No. two connecting pipes be connected through compression spring, then set up wire rope again, and make the pipe head end fix the one end at wire rope, make wire rope's the other end fix on the wind roll, can be through shrink or extension wire rope, make the pipe head end remove under compression spring's spring action, and then change the distance between annular sacculus and No. two annular sacculus, and then can make No. two annular sacculus with pulmonary vein mouth distal end shutoff, can avoid the blood flow to erode annular sacculus No. one, can not produce great influence to freezing ablation temperature, it is comparatively convenient to use.

Description

Pulmonary vein electrical isolation balloon structure

The technical field is as follows:

the utility model relates to a sacculus structure, concretely relates to pulmonary vein electricity isolation sacculus structure.

Background art:

cryoballoon ablation is a surgical medical technique that applies cryoablation to target tissue. Compared with the prior radio frequency ablation, the patient in the cryoablation reduces pain because the patient does not endure high temperature.

Cryoablation is a new arrhythmia treatment technology invented by researchers after radiofrequency ablation. The principle is that the liquid refrigerant absorbs heat and evaporates to take away tissue heat, so that the temperature of a target ablation part is reduced, and abnormal electrophysiological cell tissues are damaged, thereby eliminating the risk of arrhythmia.

The cryoablation is to block the saccule to the vestibule of the pulmonary vein and transmit the low-temperature energy to the periphery of the saccule, thereby causing direct or indirect damage to the peripheral tissue of the saccule and further achieving the purpose of electrically isolating the pulmonary vein. However, the catheters used in cryoablation procedures cannot block the pulmonary vein orifice, so that blood is easily flushed to the frozen part, and the operation is easily affected.

The utility model has the following contents:

an object of the utility model is to provide a pulmonary vein electricity isolation sacculus structure to solve the problem that proposes in the above-mentioned background art.

The utility model discloses by following technical scheme implement:

the pulmonary vein electrical isolation balloon structure comprises a catheter body and a fixed seat fixed at one end of the catheter body, wherein a first annular balloon is arranged on the outer side of one end, away from the fixed seat, of the catheter body, one side, away from the fixed seat, of the catheter body is connected with a catheter head end through a first corrugated pipe, a second annular balloon is arranged on the outer side of the catheter head end, a first connecting pipe and a second connecting pipe are arranged on the outer side of the first corrugated pipe, the first connecting pipe extends into the second connecting pipe, and the interiors of the first connecting pipe and the second connecting pipe are connected through a compression spring; the inside fixed connection wire rope's of a connecting pipe one end, wire rope's the other end passes the through wires hole of a bellows, pipe body and fixing base in proper order, just wire rope's the other end is fixed on the winding roll, the winding roll sets up the one side of keeping away from the pipe body at the fixing base.

As a further aspect of the present invention: the both ends of spiral roller all are fixed with the connector, in the connector all stretched into rather than the connection cap that corresponds, two connection caps were fixed respectively on the inner wall of a fixed plate and No. two fixed plates, polygonal locking hole has been seted up in the fixed plate, has seted up columniform connecting hole in the connector that is close to a fixed plate, it has the locking head to stretch into in locking hole and the connecting hole.

As a further aspect of the present invention: a through hole is formed in the second fixing plate, a fixing rod is arranged in the through hole, a fixing ring is fixed at one end of the fixing rod, which extends out of the second fixing plate, and the other end of the fixing rod penetrates through the connecting cap to be fixed on the connecting head.

As a further aspect of the present invention: a first connecting channel and a second connecting channel are arranged on the outer side of the catheter body, one ends of the first connecting channel and the second connecting channel extend out of the fixed seat, and the other end of the first connecting channel penetrates through the first annular balloon; a second corrugated pipe is connected between the first annular ball bag and the second annular ball bag, one end of the second corrugated pipe is connected with one end of a first connecting channel close to the second corrugated pipe, and the other end of the second corrugated pipe is communicated with the second annular ball bag.

As a further aspect of the present invention: the other end of the second connecting channel also penetrates through the first annular balloon, and a plurality of liquid outlet holes are formed in the intersection of the second connecting channel and the first annular balloon at equal intervals; a plurality of electrodes are pasted on the outer wall of the second annular balloon, all the electrodes are connected with wires, and the wires sequentially penetrate through the catheter head end, the first corrugated pipe, the catheter body and the fixing seat.

As a further aspect of the present invention: the first connecting pipe and the second connecting pipe are respectively fixed on the catheter head end and the catheter body.

The utility model has the advantages that:

1. the utility model discloses a set up a bellows between annular sacculus and No. two annular sacculus, set up a connecting pipe and No. two connecting pipes in the outside of a bellows, and make a connecting pipe and No. two connecting pipes be connected through compression spring, then set up wire rope again, and make the pipe head end fix the one end at wire rope, make wire rope's the other end fix on the wind roll, can be through shrink or extension wire rope, make the pipe head end remove under compression spring's spring action, and then change the distance between an annular sacculus and No. two annular sacculus, and then can make No. two annular sacculus with pulmonary vein mouth distal end shutoff, can avoid the blood stream to erode annular sacculus No. one, can not produce great influence to the cryoablation temperature, it is comparatively convenient to use.

2. The utility model arranges the winding roll, arranges locking holes on the connector at one end of the winding roll and the first fixing plate, and then arranges the locking head to make the locking head extend into the locking holes, when the winding roll needs to be fixed, the winding roll can be fixed and fastened through the locking head; the fixing rod is fixedly connected outside the connector at the other end of the wire winding roller, the fixing ring is arranged at one end of the fixing rod far away from the wire winding roller, the fixing ring can be rotated to drive the fixing rod to rotate, the connector and the wire winding roller are further driven to rotate, the contraction or extension of the steel wire rope is achieved, and the wire winding roller is convenient to use.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an overall structural view of a pulmonary vein electrical isolation balloon structure;

FIG. 2 is a block diagram of a first fixation plate of a pulmonary vein electrical isolation balloon structure;

fig. 3 is a block diagram of a locking head of a pulmonary vein electrical isolation balloon structure.

In the figure: 1. a catheter body; 2. a first annular balloon; 3. a second annular balloon; 4. a first corrugated pipe; 5. a compression spring; 6. a first connecting pipe; 7. a second connecting pipe; 8. an electrode; 9. a first connecting channel; 10. a second corrugated pipe; 11. a second connecting channel; 12. a protective tube; 13. a fixed seat; 14. a wire rope; 15. a first fixing plate; 16. a second fixing plate; 17. a connecting cap; 18. a winding roll; 19. a connector; 20. a locking head; 21. fixing the rod; 22. a fixing ring; 23. and (4) locking holes.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a pulmonary vein electrical isolation balloon structure includes a catheter body 1 and afixing seat 13 fixed at one end of the catheter body 1, a first annular balloon 2 is disposed at an outer side of one end of the catheter body 1 away from thefixing seat 13, one side of the catheter body 1 away from thefixing seat 13 is connected to a catheter head end through a first bellows 4, a secondannular balloon 3 is disposed at an outer side of the catheter head end, a first connectingpipe 6 and a second connectingpipe 7 are disposed at an outer side of the first bellows 4, the first connectingpipe 6 extends into the second connectingpipe 7, and interiors of the first connectingpipe 6 and the second connectingpipe 7 are connected through acompression spring 5; the first connectingpipe 6 is fixedly connected with one end of asteel wire rope 14, the other end of thesteel wire rope 14 sequentially penetrates through the first corrugated pipe 4, the catheter body 1 and the threading hole 12 of thefixing seat 13, the other end of thesteel wire rope 14 is fixed on awinding roll 18, and thewinding roll 18 is arranged on one side, away from the catheter body 1, of thefixing seat 13; through set up bellows 4 between annular sacculus 2 and No. twoannular sacculus 3, set up connectingpipe 6 and No. two connectingpipes 7 in the outside of bellows 4, and make connectingpipe 6 and No. two connectingpipes 7 be connected throughcompression spring 5, then set upwire rope 14 again, and make the pipe head end fix the one end atwire rope 14, makewire rope 14's the other end fix on take-up roll 18, can be through shrink orextension wire rope 14, make the pipe head end remove undercompression spring 5's elasticity effect, and then change the distance between annular sacculus 2 and No. twoannular sacculus 3, and then can make No. twoannular sacculus 3 block up pulmonary vein mouth distal end, can avoid the blood flow to erode annular sacculus 2, can not produce great influence to the cryoablation temperature, it is comparatively convenient to use.

Referring to fig. 1 to 3,connectors 19 are fixed at both ends of awinding roll 18, theconnectors 19 extend into corresponding connectingcaps 17, the two connectingcaps 17 are fixed on the inner walls of afirst fixing plate 15 and asecond fixing plate 16, respectively, apolygonal locking hole 23 is formed in thefirst fixing plate 15, a cylindrical connecting hole is formed in theconnector 19 close to thefirst fixing plate 15, and alocking head 20 extends into thelocking hole 23 and the connecting hole; a through hole is formed in thesecond fixing plate 16, afixing rod 21 is arranged in the through hole, a fixing ring 22 is fixed at one end of thefixing rod 21 extending out of thesecond fixing plate 16, and the other end of thefixing rod 21 penetrates through the connectingcap 17 and is fixed on theconnector 19; by arranging thewinding roll 18, arranging thelocking hole 23 on the connectinghead 19 at one end of thewinding roll 18 and thefirst fixing plate 15, and then arranging thelocking head 20, thelocking head 20 extends into thelocking hole 23, and when thewinding roll 18 needs to be fixed, thewinding roll 18 can be fixed and fastened through thelocking head 20; thefixing rod 21 is fixedly connected outside the connectinghead 19 at the other end of thewinding roller 18, the fixing ring 22 is arranged at one end of thefixing rod 21 far away from thewinding roller 18, and the fixing ring 22 can be rotated to drive thefixing rod 21 to rotate, so that the connectinghead 19 and thewinding roller 18 are driven to rotate, thesteel wire rope 14 is contracted or extended, and the use is convenient.

Referring to fig. 1, a first connectingchannel 9 and a second connectingchannel 11 are arranged on the outer side of the catheter body 1, one ends of the first connectingchannel 9 and the second connectingchannel 11 extend out of afixed seat 13, and the other end of the first connectingchannel 9 penetrates through a first annular balloon 2; a secondcorrugated pipe 10 is connected between the first annular balloon 2 and the secondannular balloon 3, one end of the secondcorrugated pipe 10 is connected with one end of a first connectingchannel 9 close to the secondcorrugated pipe 10, and the other end of the secondcorrugated pipe 10 is communicated with the secondannular balloon 3; the other end of the second connectingchannel 11 also penetrates through the first annular balloon 2, and a plurality of liquid outlet holes are formed in the intersection of the second connectingchannel 11 and the first annular balloon 2 at equal intervals; a plurality ofelectrodes 8 are adhered to the outer wall of the secondannular balloon 3, all theelectrodes 8 are externally connected with leads, and the leads sequentially penetrate through the head end of the catheter, the first corrugated pipe 4, the catheter body 1 and thefixed seat 13; the first connectingpipe 6 and the second connectingpipe 7 are respectively fixed on the head end of the catheter and the catheter body 1; liquid can conveniently enter the secondannular balloon 3 through the first connectingchannel 9, so that the secondannular balloon 3 is expanded to block the far end of the pulmonary vein opening, and liquid refrigerant can enter the first annular balloon 2 through the second connectingchannel 11.

The working principle is as follows: firstly, taking down alocking head 20 at one end of awinding roller 18, then rotating a fixing ring 22, enabling the fixing ring 22 to rotate to drive afixing rod 21 to rotate, further enabling thefixing rod 21 to rotate to drive aconnector 19 fixedly connected with the fixing rod to rotate, enabling theconnector 19 to rotate to drive thewinding roller 18 to rotate, realizing the contraction of asteel wire rope 14, further driving a catheter head end to move towards one side of a catheter body 1, when the catheter head end moves to a certain position, stopping rotating the fixing ring 22, extending thelocking head 20 into alocking hole 23 and a connecting hole, further enabling thewinding roller 18 to be fixed and stable, then disinfecting the catheter head end and the catheter body 1, and moving the catheter head end towards the pulmonary vein; when the device is moved to a proper position, liquid, including physiological saline, enters the first connectingchannel 9, and then enters the secondannular balloon 3 through the first connectingchannel 9 and the secondcorrugated pipe 10, so that the secondannular balloon 3 is expanded, and meanwhile, the secondannular balloon 3 can be expanded to seal and block the pulmonary vein opening; if the position of the secondannular balloon 3 does not reach the pulmonary vein opening, thelocking head 20 at one end of thewinding roller 18 is taken down, then the fixing ring 22 is rotated reversely, the fixing ring 22 is rotated reversely to drive thefixing rod 21 to rotate, further thefixing rod 21 is rotated reversely to drive the connectinghead 19 fixedly connected with the fixing rod to rotate, the connectinghead 19 is rotated reversely to drive thewinding roller 18 to rotate, thewire rope 14 is extended, the head end of the catheter is driven by the elastic force of thecompression spring 5 to move to one side far away from the catheter body 1, so that the secondannular balloon 3 seals and blocks the pulmonary vein opening, when the head end of the catheter moves to the pulmonary vein opening, the fixing ring 22 is stopped to rotate, thelocking head 20 is inserted into thelocking hole 23 and the connecting hole, and thewinding roller 18 is fixed and stable; then, liquid refrigerant enters the second connectingchannel 11, so that the liquid refrigerant enters the first annular balloon 2 through a liquid outlet hole in the second connectingchannel 11, the temperature in the first annular balloon 2 is too low, and the energy of the too low temperature is transmitted to the periphery of the first annular balloon 2, so that the peripheral tissue of the first annular balloon 2 is directly or indirectly damaged, and the purpose of electrically isolating the pulmonary veins is achieved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. Pulmonary vein electricity isolation sacculus structure, including pipe body (1) and fixing base (13) of fixing in the one end of pipe body (1), its characterized in that: the outer side of one end, away from the fixed seat (13), of the catheter body (1) is provided with a first annular ball bag (2), one side, away from the fixed seat (13), of the catheter body (1) is connected with a catheter head end through a first corrugated pipe (4), the outer side of the catheter head end is provided with a second annular ball bag (3), the outer side of the first corrugated pipe (4) is provided with a first connecting pipe (6) and a second connecting pipe (7), the first connecting pipe (6) extends into the second connecting pipe (7), and the interiors of the first connecting pipe (6) and the second connecting pipe (7) are connected through a compression spring (5); the one end of inside fixed connection wire rope (14) of a connecting pipe (6), wire rope (14)'s the other end passes through threading hole (12) of a bellows (4), pipe body (1) and fixing base (13) in proper order, just wire rope (14)'s the other end is fixed on spiral roller (18), spiral roller (18) set up the one side of keeping away from pipe body (1) in fixing base (13).

2. The pulmonary vein electrical isolation balloon structure of claim 1, wherein: both ends of spiral roller (18) all are fixed with connector (19), connector (19) all stretch into rather than corresponding in connecting cap (17), two connect cap (17) to be fixed respectively on the inner wall of a fixed plate (15) and No. two fixed plates (16), No. 15 in set up polygonal locking hole (23), be close to the connector (19) of a fixed plate (15) in set up columniform connecting hole, it has locking head (20) to stretch into in locking hole (23) and the connecting hole.

3. The pulmonary vein electrical isolation balloon structure of claim 2, wherein: a through hole is formed in the second fixing plate (16), a fixing rod (21) is arranged in the through hole, a fixing ring (22) is fixed at one end, extending out of the second fixing plate (16), of the fixing rod (21), and the other end of the fixing rod (21) penetrates through the connecting cap (17) to be fixed on the connector (19).

4. The pulmonary vein electrical isolation balloon structure of claim 1, wherein: a first connecting channel (9) and a second connecting channel (11) are arranged on the outer side of the catheter body (1), one ends of the first connecting channel (9) and the second connecting channel (11) extend out of the fixing seat (13) to be arranged, and the other end of the first connecting channel (9) penetrates through the first annular balloon (2) to be arranged; be connected with No. two bellows (10) between annular sacculus (2) and No. two annular sacculus (3), the one end of No. two bellows (10) is connected rather than the one end of being close to a connecting channel (9), the other end intercommunication No. two annular sacculus (3) of No. two bellows (10).

5. The pulmonary vein electrical isolation balloon structure of claim 4, wherein: the other end of the second connecting channel (11) also penetrates through the first annular balloon (2), and a plurality of liquid outlet holes are formed in the intersection of the second connecting channel (11) and the first annular balloon (2) at equal intervals; a plurality of electrodes (8) are pasted on the outer wall of the second annular balloon (3), all the electrodes (8) are connected with wires, and the wires sequentially penetrate through the catheter head end, the first corrugated pipe (4), the catheter body (1) and the fixing seat (13).

6. The pulmonary vein electrical isolation balloon structure of claim 1, wherein: the first connecting pipe (6) and the second connecting pipe (7) are respectively fixed on the head end of the catheter and the catheter body (1).

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