CN117338365B - Left auricle plugging device - Google Patents
Left auricle plugging device Download PDFInfo
- Publication number
- CN117338365B CN117338365B CN202311658107.0A CN202311658107A CN117338365B CN 117338365 B CN117338365 B CN 117338365B CN 202311658107 A CN202311658107 A CN 202311658107A CN 117338365 B CN117338365 B CN 117338365B
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- fixedly mounted
- left auricle
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- 239000012528 membrane Substances 0.000 claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 35
- 210000005248 left atrial appendage Anatomy 0.000 claims description 19
- 230000000670 limiting effect Effects 0.000 claims description 13
- 238000000605 extraction Methods 0.000 claims description 6
- 239000000969 carrier Substances 0.000 claims 1
- 239000008280 blood Substances 0.000 abstract description 14
- 210000004369 blood Anatomy 0.000 abstract description 14
- 206010003658 Atrial Fibrillation Diseases 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000015271 coagulation Effects 0.000 abstract description 3
- 238000005345 coagulation Methods 0.000 abstract description 3
- 208000006011 Stroke Diseases 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- 208000001435 Thromboembolism Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 238000007675 cardiac surgery Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12031—Type of occlusion complete occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12159—Solid plugs; being solid before insertion
Abstract
The invention discloses a left auricle plugging device, which relates to the technical field of medical appliances and comprises the following components: the membrane body is an elastic flow blocking membrane and is used for protecting peripheral tissues and blocking thrombus after the left auricle is blocked; the two bearing pieces are respectively and fixedly connected to the upper end and the lower end of the inner wall of the film body, and the shape of the film body is changed when the two bearing pieces move. The advantages are that: when the left auricle is plugged, the plugging device can avoid the influence of atrial fibrillation, effectively ensure the plugging effect and stability of the plugging device on the left auricle and avoid the problem of falling off; and after the plugging is finished, residual blood in the left auricle can be automatically pumped out, so that the increase of operation risk caused by the coagulation of the blood in the left auricle is avoided.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a left auricle occluder.
Background
In recent years, in patients with non-valve ward fibrillation, 90% of the strokes due to atrial fibrillation originate from the left atrial appendage. When clinical data shows atrial fibrillation, removal of the left atrial appendage during cardiac surgery can reduce the incidence of cerebral stroke, suggesting a risk of left atrial appendage in thromboembolism. Since the left atrial appendage is the thrombus, plugging the left atrial appendage opening eliminates the basis for thrombus formation in the left atrial appendage. Generally, left atrial appendage occlusion by a left atrial appendage occlusion device is an effective way to prevent cerebral stroke caused by atrial fibrillation.
Through retrieving, patent document with patent number CN217696698U discloses a left auricle stopper, including being used for fixing left auricle stopper at the fixed part of preset position, the sealing part of sealed effect to and the connecting piece of connecting fixed part and sealing part, the fixed part includes many spinal branch vaulting poles, and the one end of bracing piece is the stiff end of being connected with the connecting piece, and the other end is the free end, is provided with the bulb on the free end, is in the expansion state when the fixed part.
The left auricle occluder has the following defects:
1. when the left auricle is plugged, the stability of fixing the elastic disc at the left auricle by using the expansion of the plurality of support rods is insufficient, and the left auricle can vibrate due to heart beating, and the support rods deform due to long-term vibration, so that the elastic disc falls off;
2. after the left auricle is plugged, the left auricle plugging device cannot automatically pump out residual blood in the left auricle, and when the blood is partially coagulated, the operation risk is increased.
Therefore, there is a need to design a left atrial appendage occlusion device.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a left auricle occluder, which solves the problems that the occluder provided in the background art is poor in fixation stability and residual blood in the left auricle cannot be automatically extracted after occlusion.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a left atrial appendage occlusion device comprising:
the membrane body is an elastic flow blocking membrane and is used for protecting peripheral tissues and blocking thrombus after the left auricle is blocked;
the two bearing pieces are respectively and fixedly connected to the upper end and the lower end of the inner wall of the film body, and the shape of the film body is changed when the two bearing pieces move;
a support part; the support part is used for supporting two bearing pieces, the support part comprises two support pipes, the two support pipes are respectively and fixedly connected with the two bearing pieces, a connecting pipe is installed between the two support pipes, a pulling mechanism is installed between the connecting pipe and the two support pipes, the pulling mechanism comprises a fixing ring, the fixing ring is fixedly installed on the connecting pipe, connecting rings are fixedly installed on the two support pipes, tension springs are installed between the fixing ring and the two connecting rings, and annular grooves matched with the connecting pipe are formed in the side wall of one end, close to the two support pipes, of each support pipe;
a plurality of driving units; the driving part is used for connecting the supporting part and the film body, the driving part comprises a fixing piece, the outer wall of the fixing piece is fixedly connected with the inner wall of the film body, a guide mechanism and two driving mechanisms are arranged between the fixing piece and the pulling mechanism, a connecting mechanism is arranged between the fixing piece and two bearing pieces, the connecting mechanism comprises connecting pieces fixedly arranged at the upper end and the lower end of the fixing piece, two connecting pieces are respectively and rotatably connected with a connecting shaft, a plurality of grooves are formed in the bearing pieces, the supporting pieces are rotatably connected in the grooves through rotating shafts, a connecting groove is formed in one end, far away from the rotating shafts, of each supporting piece, and a rotating hole matched with the connecting shaft is formed in each connecting groove;
the driving mechanism comprises a mounting piece, driving pieces are fixedly mounted at two ends of the connecting shaft, the mounting piece is fixedly mounted between the two driving pieces, two contact pieces are fixedly mounted on the mounting piece, a plurality of protruding pieces are fixedly mounted on the side wall of the connecting ring and are rotatably connected between the two contact pieces through a supporting shaft, the guiding mechanism comprises a guiding piece, the guiding piece is fixedly mounted on the side wall of the fixing ring, a guiding seat is fixedly mounted on the side wall of the fixing piece, a sliding piece is fixedly mounted on the guiding seat, and a sliding groove matched with the sliding piece is formed in the guiding piece;
a conveying section; the conveying part is used for sending the stopper into the left auricle, the conveying part includes the outer tube, slidable mounting has flexible inner core in the outer tube, install extraction mechanism between flexible inner core and the carrier that is located the upper end, be located the upper end fixed mounting has the setting element in the stay tube, and the internal diameter of setting element is less than the diameter of flexible inner core, extraction mechanism is including installing the bonding piece in the through-hole, bonding has the collecting pipe on the inner wall of bonding piece, and the external diameter of collecting pipe is less than the internal diameter of setting element, the collecting vat has been seted up in the collecting vat, all seted up the round hole on the upper and lower both sides wall of collecting vat, sliding connection has the piston spare, and the diameter of piston spare is greater than the diameter of round hole, fixed mounting has the pulling piece between the upper end of flexible inner core and the piston spare, and pulling piece and round hole sliding connection.
Further, a limiting piece is fixedly arranged at the port of the sliding groove, and a limiting groove matched with the limiting piece is formed in the sliding piece.
Further, through holes are formed in the two bearing pieces, the diameters of the two through holes are smaller than the diameter of the outer sleeve, and the diameters of the two through holes are equal to the inner diameters of the two supporting pipes.
Further, a plurality of clamping pieces are fixedly installed on the side wall of the telescopic inner core, a plurality of clamping grooves are formed in the inner wall of the outer sleeve, each clamping groove is matched with the corresponding clamping piece, and the clamping grooves are larger than the connecting pipe in length.
Compared with the prior art, the invention has the advantages that:
1: when carrying out the shutoff to left auricle, can effectively ensure the shutoff effect and the stability of film body to left auricle, avoid the stopper to take place the problem that drops, specifically through the design of supporting part, can exert outside tension to film body all the time, make it can avoid the atrial fibrillation to influence and keep stable.
2: when the left auricle is plugged, the shape of the membrane body after being opened can be effectively kept unchanged, the plugging stability of the membrane body to the left auricle is further improved, and particularly, the membrane body can be kept unchanged in the middle part position under the action of a plurality of fixing pieces after being opened through the design of the driving part, so that the shape stability of the membrane body is ensured.
3: after the left auricle is plugged, residual blood in the left auricle can be automatically pumped out, the increase of operation risk caused by coagulation of the blood is avoided, and particularly, through the design of the conveying part, negative pressure is generated at the upper end bearing part by utilizing the movement of the telescopic inner core, so that the blood is collected.
4: when the left auricle is plugged, the constant moving direction of the fixing piece can be effectively ensured, so that the limiting effect of the fixing piece on the middle position of the film body is ensured, and the fixing piece can only move back and forth relative to the connecting pipe through the design of the guide mechanism.
In conclusion, when the left auricle is plugged, the plugging device can avoid the influence of atrial fibrillation, effectively ensure the plugging effect and stability of the left auricle and avoid the problem of falling off; and after the plugging is finished, residual blood in the left auricle can be automatically pumped out, so that the increase of operation risk caused by the coagulation of the blood in the left auricle is avoided.
Drawings
Fig. 1 is a schematic structural view of a left atrial appendage occlusion device according to the present invention;
FIG. 2 is an enlarged schematic view of the internal structure of the film body in FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 2 with the support removed;
FIG. 4 is a schematic structural view of one set of the driving portion and the supporting portion in FIG. 2;
FIG. 5 is an exploded view of the structure of FIG. 4;
FIG. 6 is an exploded and enlarged schematic view of the driving portion of FIG. 5;
FIG. 7 is an enlarged schematic view of the mounting member and its upper assembly shown in FIG. 6;
FIG. 8 is an enlarged schematic view of one of the mounts and its upper assembly of FIG. 6;
FIG. 9 is an enlarged schematic view of the structure of the support part in FIG. 2;
FIG. 10 is a cross-sectional view of FIG. 9;
FIG. 11 is a schematic view of the conveying section of FIG. 1;
fig. 12 is an exploded view of the structure of fig. 11.
In the figure: the device comprises a film body 1, a bearing part 2, a groove 3, a rotating shaft 4, a supporting part 5, a fixing part 6, a connecting part 7, a connecting groove 8, a connecting shaft 9, a driving part 10, a mounting part 11, a contact part 12, a supporting pipe 13, a connecting pipe 14, an annular groove 15, a connecting ring 16, a fixing ring 17, a protruding part 18, a supporting shaft 19, a tension spring 20, a guide seat 21, a guide part 22, a sliding part 23, a limiting groove 24, a through hole 25, a bonding part 26, an outer sleeve 27, a telescopic inner core 28, a collecting pipe 29, a pulling part 30, a piston part 31, a clamping part 32, a clamping groove 33 and a positioning part 34.
Detailed Description
Referring to fig. 1-10, a left atrial appendage occlusion device comprising:
the membrane body 1, the membrane body 1 is a flow blocking membrane with good elasticity, and is used for protecting peripheral tissues and blocking thrombus after the left auricle is blocked;
the two bearing pieces 2 are respectively and fixedly connected to the upper end and the lower end of the inner wall of the film body 1, and the shape of the film body 1 is changed when the two bearing pieces 2 move, so that the film body 1 is clung to the inner wall tissue of the left auricle of a patient, and the plugging effect on thrombus is ensured;
the support part is used for supporting the two bearing pieces 2 and comprises two support pipes 13, the two support pipes 13 are fixedly connected with the two bearing pieces 2 respectively, a connecting pipe 14 is arranged between the two support pipes 13, a pulling mechanism is arranged between the connecting pipe 14 and the two support pipes 13 and comprises a fixed ring 17, the fixed ring 17 is fixedly arranged on the connecting pipe 14, connecting rings 16 are fixedly arranged on the two support pipes 13, and tension springs 20 are arranged between the fixed ring 17 and the two connecting rings 16;
the side walls of the two support pipes 13 close to each other are provided with annular grooves 15 matched with the connecting pipes 14, the two support pipes 13 can be close to each other by utilizing the elasticity of the two tension springs 20 through the matching of the two annular grooves 15, the connecting effect between the connecting rings 14 and the two support pipes 13 is ensured, when the two support pipes 13 are close to each other, the two bearing pieces 2 are close to each other at the same time, and the bearing pieces 2 can be outwards spread to be effectively fixed at the left auricle of a patient;
the two bearing pieces 2 are provided with the through holes 25, the diameters of the two through holes 25 are equal to the inner diameters of the two supporting tubes 13, and the through holes 25 are designed to ensure that the two bearing pieces 2 are in a through state, so that blood circulation is facilitated;
the driving parts are used for connecting the supporting parts and the film body 1, each driving part comprises a fixing piece 6, the outer wall of each fixing piece 6 is fixedly connected with the inner wall of the film body 1, the middle part of the film body 1 can keep stable unfolding direction due to the design of the fixing piece 6, and a connecting mechanism is arranged between each fixing piece 6 and each two bearing pieces 2;
the connecting mechanism comprises connecting pieces 7 fixedly arranged at the upper end and the lower end of a fixing piece 6, connecting shafts 9 are rotatably connected to the two connecting pieces 7, a plurality of grooves 3 are formed in the bearing piece 2, supporting pieces 5 are rotatably connected in the grooves 3 through rotating shafts 4, connecting grooves 8 are formed in one ends, far away from the rotating shafts 4, of the supporting pieces 5, rotating holes matched with the connecting shafts 9 are formed in the connecting grooves 8, and the connecting pieces 7, the rotating shafts 4 and the connecting shafts 9 are matched with each other, so that the supporting pieces 5 can swing left and right along the fixing piece 6;
a guide mechanism and two driving mechanisms are arranged between the fixing piece 6 and the pulling mechanism, the guide mechanism comprises a guide piece 22, the guide piece 22 is fixedly arranged on the side wall of the fixed ring 17, a guide seat 21 is fixedly arranged on the side wall of the fixing piece 6, a sliding piece 23 is fixedly arranged on the guide seat 21, a sliding groove matched with the sliding piece 23 is formed in the guide piece 22, the moving direction of the fixing piece 6 can be limited under the matching of the sliding groove and the sliding piece 23, and at the moment, when the connecting mechanism operates, the fixing piece 6 can be outwards opened and inwards contracted, so that the expanding and contracting effects of the film body 1 are ensured;
a limiting piece is fixedly arranged at the port of the sliding groove, a limiting groove 24 matched with the limiting piece is formed in the sliding piece 23, and the connection stability between the sliding piece 23 and the sliding groove can be effectively ensured through the matching of the limiting piece and the limiting groove 24;
the driving mechanism comprises a mounting piece 11, driving pieces 10 are fixedly mounted at two ends of a connecting shaft 9, the mounting piece 11 is fixedly mounted between the two driving pieces 10, two contact pieces 12 are fixedly mounted on the mounting piece 11, a plurality of protruding pieces 18 are fixedly mounted on the side wall of a connecting ring 16, the protruding pieces 18 are rotatably connected between the two contact pieces 12 through a supporting shaft 19, and under the action of the two mounting pieces 11, when two bearing pieces 2 are close to each other, the supporting pieces 5 can be pushed to tilt outwards and rotate, so that the opening of a plurality of fixing pieces 6 can be effectively ensured, otherwise, when the two bearing pieces 2 are mutually unfolded, the fixing pieces 6 can be mutually folded.
Referring to fig. 1 and 10-12, a left atrial appendage occlusion device comprising:
the conveying part is used for conveying the occluder into the left auricle and comprises an outer sleeve 27, a telescopic inner core 28 is slidably arranged in the outer sleeve 27, a positioning piece 34 is fixedly arranged in a supporting tube 13 at the upper end, the inner diameter of the positioning piece 34 is smaller than the diameter of the telescopic inner core 28, the diameters of two through holes 25 are smaller than the diameter of the outer sleeve 27, and the distance between the two bearing pieces 2 can be controlled by utilizing the change of the positions of the telescopic inner core 28 on the outer sleeve 27 through the design of the diameter difference between the positioning ring 34, the through holes 25 and the outer sleeve 27, so that whether the occluder is opened or not can be conveniently adjusted according to operation needs;
a plurality of clamping pieces 32 are fixedly arranged on the side wall of the telescopic inner core 28, a plurality of clamping grooves 33 are formed in the inner wall of the outer sleeve 27, each clamping groove 33 is matched with the corresponding clamping piece 32, the clamping groove 33 is longer than the connecting pipe 14, the connection stability between the telescopic inner core 28 and the outer sleeve 27 can be effectively ensured under the matching of the clamping piece 32 and the clamping groove 33, and meanwhile, after the telescopic inner core 28 moves a certain distance relative to the outer sleeve 27, the telescopic inner core 28 can be utilized to drive the outer sleeve 27 to move together;
an extraction mechanism is arranged between the telescopic inner core 28 and the bearing piece 2 positioned at the upper end, the extraction mechanism comprises a bonding piece 26 arranged in the through hole 25, a collecting pipe 29 is bonded on the inner wall of the bonding piece 26, the outer diameter of the collecting pipe 29 is smaller than the inner diameter of a positioning piece 34, a collecting groove is formed in the collecting pipe 29, round holes are formed in the upper side wall and the lower side wall of the collecting groove, a piston piece 31 is slidably connected in the collecting groove, the diameter of the piston piece 31 is larger than that of the round holes, a pulling piece 30 is fixedly arranged between the upper end of the telescopic inner core 28 and the piston piece 31, the pulling piece 30 is slidably connected with the round holes, when the piston piece 31 moves downwards in the collecting pipe 29, suction force is generated at the round holes at the upper end, residual blood in the left auricle after plugging can be extracted by the suction force at this time, and when the piston piece 31 moves to the lowest end in the collecting pipe 29, the piston piece 31 is pulled by the continuous downwards moving of the collecting pipe 29, the piston piece 31 is separated from the bonding piece 26, and then the piston piece 31 can be taken out by continuously moving the telescopic inner core 28 in the collecting pipe in the communication with the round holes, and the round holes can be provided with a one-way valve in the upper round hole in the collecting pipe for preventing the blood flowing out of the inner part.
The using method of the left auricle occluder comprises the following steps:
s1: the telescopic inner core 28 is moved upwards to enable the upper end of the telescopic inner core 28 to be in contact with and propped against the positioning ring 34, meanwhile, the upper end of the outer sleeve 27 is propped against the lower end of the film body 1, and continuous upward moving acting force is applied to the telescopic inner core 28 to enable the two bearing pieces 2 to be at the farthest distance from each other, so that the whole left atrial appendage occlusion device is in a contracted state;
s2: the left auricle occluder in the S1 state and the outer sleeve 27 are sent to the left auricle of the patient together by using a common intravenous delivery catheter, and the upper end position of the film body 1 is positioned in the inner area of the left auricle;
s3: the telescopic inner core 28 is moved downwards, at the moment, under the action of the elasticity of the tension spring 20, the two support pipes 13 are mutually close, the plurality of fixing pieces 6 are outwards opened by the operation of the driving part and are in contact with the side wall tissues of the left auricle of the patient, and the left auricle occluder is fixed in the left auricle of the patient to occlude the left auricle of the patient;
s4: after the plugging is completed, the telescopic inner core 28 is continuously moved downwards, at the moment, the distance between the two supporting tubes 13 is kept unchanged because the left auricle plugging device is not changed any more, at the moment, the extracting mechanism operates to extract the blood in the plugged left auricle into the collecting tube 29, so that the medical accident caused by the residual blood is avoided;
s5: after the telescopic inner core 28 moves downwards for a certain distance, the piston member 31 is blocked from moving, at this time, the pulling force of the piston member 31 to the outer sleeve 27 can separate the piston member from the bonding member 26, and then the telescopic inner core is further moved downwards to enable the clamping member 32 to be in contact with the bottom of the clamping groove 33, so that the whole conveying part can be separated from the left atrial appendage occluder and removed from the patient.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A left atrial appendage occlusion device comprising:
the membrane body (1), the membrane body (1) is an elastic flow blocking membrane, is used for protecting peripheral tissues and blocking thrombus after blocking the left auricle;
the two bearing pieces (2) are respectively fixedly connected to the upper end and the lower end of the inner wall of the film body (1), and the shape of the film body (1) is changed when the two bearing pieces (2) move;
a support part; the support part is used for supporting two bearing pieces (2), the support part comprises two support pipes (13), the two support pipes (13) are fixedly connected with the two bearing pieces (2) respectively, a connecting pipe (14) is arranged between the two support pipes (13), a pulling mechanism is arranged between the connecting pipe (14) and the two support pipes (13), the pulling mechanism comprises a fixed ring (17), the fixed ring (17) is fixedly arranged on the connecting pipe (14), the two support pipes (13) are fixedly provided with connecting rings (16), a tension spring (20) is arranged between the fixed ring (17) and the two connecting rings (16), and annular grooves (15) matched with the connecting pipe (14) are formed in the side walls of one ends, close to the two support pipes (13);
a plurality of driving units; the driving part is used for connecting the supporting part with the film body (1), the driving part comprises a fixing piece (6), the outer wall of the fixing piece (6) is fixedly connected with the inner wall of the film body (1), a guide mechanism and two driving mechanisms are arranged between the fixing piece (6) and the pulling mechanism, connecting mechanisms are arranged between the fixing piece (6) and the two bearing pieces (2), the connecting mechanisms comprise connecting pieces (7) fixedly arranged at the upper end and the lower end of the fixing piece (6), connecting shafts (9) are respectively and rotatably connected to the two connecting pieces (7), a plurality of grooves (3) are formed in the bearing pieces (2), supporting pieces (5) are rotatably connected to the grooves (3) through rotating shafts (4), connecting grooves (8) are formed in one ends, far away from the rotating shafts (4), of the supporting pieces (5), and rotating holes matched with the connecting shafts (9) are formed in the connecting grooves (8);
the driving mechanism comprises a mounting piece (11), driving pieces (10) are fixedly mounted at two ends of a connecting shaft (9), the mounting piece (11) is fixedly mounted between the two driving pieces (10), two contact pieces (12) are fixedly mounted on the mounting piece (11), a plurality of protruding pieces (18) are fixedly mounted on the side wall of a connecting ring (16), the protruding pieces (18) are rotatably connected between the two contact pieces (12) through a supporting shaft (19), the guiding mechanism comprises a guiding piece (22), the guiding piece (22) is fixedly mounted on the side wall of a fixed ring (17), a guiding seat (21) is fixedly mounted on the side wall of the fixed piece (6), a sliding piece (23) is fixedly mounted on the guiding seat (21), and a sliding groove matched with the sliding piece (23) is formed in the guiding piece (22).
A conveying section; the conveying part is used for sending the occluder into the left auricle, the conveying part comprises an outer sleeve (27), telescopic inner cores (28) are slidably mounted in the outer sleeve (27), an extraction mechanism is mounted between the telescopic inner cores (28) and bearing parts (2) located at the upper end, locating parts (34) are fixedly mounted in supporting tubes (13) located at the upper end, the inner diameter of the locating parts (34) is smaller than the diameter of the telescopic inner cores (28), the extraction mechanism comprises bonding parts (26) mounted in through holes (25), collecting pipes (29) are bonded on the inner walls of the bonding parts (26), the outer diameters of the collecting pipes (29) are smaller than the inner diameters of the locating parts (34), collecting grooves are formed in the collecting pipes (29), round holes are formed in the upper side wall and the lower side wall of each collecting groove, piston parts (31) are connected in a sliding mode, the diameters of the piston parts (31) are larger than the diameters of the round holes, pulling parts (30) are fixedly mounted between the upper ends of the telescopic inner cores (28) and the piston parts (31), and the pulling parts (30) are connected with the round holes in a sliding mode.
2. The left atrial appendage occlusion device of claim 1, wherein a limiting member is fixedly mounted at a port of the sliding channel, and a limiting channel (24) is formed on the sliding member (23) and is matched with the limiting member.
3. A left atrial appendage occlusion device according to claim 1, wherein two of the carriers (2) are provided with through holes (25), and wherein the diameter of both through holes (25) is smaller than the diameter of the outer sleeve (27), and wherein the diameter of both through holes (25) is equal to the inner diameter of both support tubes (13).
4. The left atrial appendage occlusion device of claim 1, wherein a plurality of clamping members (32) are fixedly mounted on the side wall of the telescopic inner core (28), a plurality of clamping grooves (33) are formed in the inner wall of the outer sleeve (27), each clamping groove (33) is respectively matched with a corresponding clamping member (32), and the clamping groove (33) is longer than the connecting pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311658107.0A CN117338365B (en) | 2023-12-06 | 2023-12-06 | Left auricle plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311658107.0A CN117338365B (en) | 2023-12-06 | 2023-12-06 | Left auricle plugging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117338365A CN117338365A (en) | 2024-01-05 |
| CN117338365B true CN117338365B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311658107.0A Active CN117338365B (en) | 2023-12-06 | 2023-12-06 | Left auricle plugging device |
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| Country | Link |
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| CN (1) | CN117338365B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005034802A2 (en) * | 2003-10-09 | 2005-04-21 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
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| CN117338365A (en) | 2024-01-05 |
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