CN113180768A - Stopper conveying device - Google Patents
Stopper conveying device Download PDFInfo
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- CN113180768A CN113180768A CN202110448392.8A CN202110448392A CN113180768A CN 113180768 A CN113180768 A CN 113180768A CN 202110448392 A CN202110448392 A CN 202110448392A CN 113180768 A CN113180768 A CN 113180768A
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- wire
- connecting part
- flexible
- connecting portion
- occluder
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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
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
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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
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
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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
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
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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
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00623—Introducing or retrieving devices therefor
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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
- A61B2017/1205—Introduction devices
- A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
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- Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
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- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Reproductive Health (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a conveying device for a plugging device, which comprises: flexible inserting pipe, wire feeding and connecting part; the connecting part is connected to the distal end of the flexible penetrating cannula; the inner part of the connecting part is communicated with the inner part of the flexible penetrating cannula so as to allow the conveying wire to penetrate through, and the conveying wire penetrates out of the connecting part and forms a ring to penetrate into the connecting part again. The conveying wire of the occluder conveying device forms a ring at the connecting part, so that the occluder is fixed and released, the occluder conveying device does not need to be provided with threads, and the occluder conveying device is simple in structure, wide in application range and convenient to operate.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an occluder conveying device.
Background
The conveying steel cable of the existing occluder conveying system mostly adopts a head end with threads, and the head end can only be used for conveying medical appliances such as occluders with threaded connectors. However, for non-threaded stoppers (i.e. stoppers without a threaded connection), no screw fit can be used for delivery.
The conveying steel cable adopting the thread fit has the disadvantages of complex structure, complex operation, high cost and inconvenient actual operation. Moreover, at present, the steel cable has a limited range of use and is not suitable for transporting stoppers without threaded connections.
The occluder delivery system is mainly used for delivering implanted medical instruments without threaded connectors, such as occluders without protruding point structures at two ends, occluders without threaded connectors and the like.
The present invention therefore seeks to provide an occluder delivery device which is simple to operate, simple in construction and wide in use.
Disclosure of Invention
The invention aims to overcome the defects of limited application range, complex structure and difficult operation in the prior art and provide the occluder conveying device with wider application range, simple and convenient operation and simple structure.
The invention solves the technical problems through the following technical scheme:
an occluder delivery device comprising: flexible inserting pipe, wire feeding and connecting part;
the connecting part is connected to the distal end of the flexible penetrating cannula;
the inner part of the connecting part is communicated with the inner part of the flexible penetrating cannula so as to allow the conveying wire to penetrate through, and the conveying wire penetrates out of the connecting part and forms a ring to penetrate into the connecting part again.
In this scheme, this occluder conveyor's transport silk forms a ring in connecting portion department to fixed and release occluder, this occluder conveyor need not set up the screw thread, and the structure is comparatively simple and easy, application range is wider and convenient operation.
Preferably, one end of the wire feeding line has a fixing head, and the fixing head is configured to: cannot pass through the inside of the connecting part;
the other end of the wire is threaded out of the connecting part from the inside of the connecting part and forms a ring to penetrate into the connecting part again and to penetrate to the proximal end of the flexible penetrating cannula along the inside of the flexible penetrating cannula.
Preferably, the shape of the fixing head is any one of a spherical shape, an ellipsoidal shape, a cylindrical shape, a truncated cone shape, a conical shape and a triangular pyramid shape, and the sectional area of the fixing head is larger than that of the hole through which the wire passes through the connecting part.
In this embodiment, the shape of the fixing head is any one of a spherical shape, an ellipsoidal shape, a cylindrical shape, a truncated cone shape, a conical shape, and a triangular pyramid shape, or a combination of the above shapes, and the fixing head is not limited to the above structure, and the fixing head can meet the use requirement as long as the maximum sectional area is larger than the hole through which the output wire penetrates the connecting portion.
Preferably, one end of the wire is fixed inside the connecting part; the other end of the wire is threaded out of the connecting part from the inside of the connecting part and forms a ring to penetrate into the connecting part again and to penetrate to the proximal end of the flexible penetrating cannula along the inside of the flexible penetrating cannula.
Preferably, one end of the wire is fixed outside the connecting part;
and the other end of the wire conveying pipe forms a ring and then penetrates into the connecting part and penetrates to the near end of the flexible penetrating cannula along the inside of the flexible penetrating cannula.
Preferably, the connecting part is cylindrical, semi-spherical, semi-ellipsoidal or round-truncated-cone-shaped; the diameter of the connecting part is larger than or equal to that of the flexible penetrating pipe.
In this embodiment, the cylindrical connecting portion can be inserted and moved more easily without damaging the heart tissue. The connecting portion may also be shaped like a hemisphere, a truncated cone, or a combination of the above shapes, and is not limited to the above structure.
In this scheme, the diameter that the intubate was worn to the directness of connecting portion is greater than the flexibility can make things convenient for the flexible interlude of wearing the intubate to remove, and then drives the interlude of connecting portion and remove. And, it is more advantageous to firmly fix the occluding device to the distal end face of the connecting portion.
Preferably, a first channel and a second channel are arranged inside the connecting portion, the first channel extends from the outer surface of the connecting portion to the flexible penetrating tube, two ports of the second channel are located on the outer surface of the connecting portion, the conveying wire penetrates through the first channel and the second channel, a first end of the conveying wire is connected to the proximal end of the flexible penetrating tube from the outer side of the flexible penetrating tube, and a second end of the conveying wire is connected to the distal end of the flexible penetrating tube from the inside of the connecting portion.
Preferably, the connection portion is hollow in the inside.
In this scheme, the inside cavity of connecting portion more makes things convenient for defeated interlude of sending the silk to remove, reduces the resistance when carrying the silk interlude. Moreover, the hollow connecting part is easier to manufacture, and the material and manufacturing cost are saved.
Preferably, the distal end port of the first channel and the distal end port of the second channel are arranged on the distal end face of the connecting part, and the proximal end port of the second channel is arranged on the side face of the connecting part;
a groove is formed on the distal end surface of the connecting part;
the distal end port of the first channel and/or the distal end port of the second channel is/are arranged on the bottom surface of the groove.
In this scheme, the distal end port of first passageway and the distal end port of second passageway are located the distal end face of connecting portion can be better with the stopper fixed to the distal end face of connecting portion, and the near-end port of second passageway is located the side of connecting portion then conveniently is defeated to send taking out of silk and return control portion.
In this arrangement, the recess is adapted to engage a central portion of a fixation member or proximal disc face that may be present in the occluding device.
In this scheme, the distal end port of the first channel and/or the distal end port of the second channel are/is arranged on the bottom surface of the groove, so that the occluder can be better fixed on the distal end surface of the connecting part.
Preferably, the flexible penetrating tube comprises an outer tube and an inner core wire, the inner core wire is inserted into the outer tube, the connecting portion is connected to the distal end of the outer tube, and the second end of the wire is connected to the distal end of the inner core wire.
In this scheme, the conveying wire is connected in the internal core line, can release the plugging device through drawing the internal core line out towards the near-end.
The positive progress effects of the invention are as follows: this plugging device conveyor's transport silk forms a ring in connecting portion department to fixed and release plugging device, this plugging device conveyor need not set up the screw thread, and the structure is comparatively simple and easy, application range is wider and convenient operation.
Drawings
Fig. 1 is a schematic sectional structural view of an occluder delivery device according to embodiment 1 of the present invention, in which a delivery wire is inserted.
Fig. 2 is a schematic perspective view of a connection part according to embodiment 1 of the present invention.
Figure 3 is a schematic perspective view of an occluding device according to the invention.
Figure 4 is a schematic perspective view of another occluding device according to the present invention.
Figure 5 is a front view schematic diagram of an occluder delivery device in accordance with embodiment 2 of the present invention.
Figure 6 is a schematic cross-sectional view of an occluding device delivery device to which an occluding device is attached according to embodiment 2 of the present invention.
Fig. 7 is a schematic perspective view of a connection part according to embodiment 2 of the present invention.
Fig. 8 is a sectional structure diagram of a connection part according to embodiment 2 of the present invention.
Fig. 9 is a schematic sectional view of a connecting portion according to embodiment 3 of the present invention, in which a wire feeding wire is inserted.
Fig. 10 is a sectional structure diagram of a connection part according to embodiment 3 of the present invention.
Description of reference numerals:
example 1
Flexible penetrating cannula 110
Wire 120 is sent
Fixed head 121
Connecting part 130
Adjusting member 145
Fixing member 201
Examples 2 and 3
Flexible penetrating cannula 110
Adjusting member 145
Fixing member 201
Detailed Description
The present invention is further illustrated by way of example and not by way of limitation in the scope of the embodiments described below in conjunction with the accompanying drawings.
Example 1
As shown in fig. 1-2, the occluding device delivery device 100 comprises: a flexible penetrating tube 110, a delivery wire 120, a connecting portion 130, a control portion 140, and a cover tube (not shown).
The connecting portion 130 is connected to the distal end of the flexible penetrating cannula 110, and the control portion 140 is connected to the proximal end of the flexible penetrating cannula 110.
The flexibility of the flexible penetrating tube 110 means that the penetrating tube can be bent to a certain degree, and the degree of bending can be set according to actual needs. Preferably, the flexible penetration tube 110 has a certain hardness so as to be penetratingly moved in the sheathing tube by being pushed and pulled.
The wire 120 is inserted through the connecting portion 130 and the cladding tube. The material of the delivery wire 120 may be selected from materials commonly used in the medical field.
The interior of the connecting portion 130 communicates with the interior of the flexible penetrating cannula 110 for the delivery wire 120 to pass through, the delivery wire 120 passing out of the connecting portion 130 and forming a loop to re-penetrate the connecting portion 130.
One end of the feeding wire 120 has a fixing head 121, and the fixing head 121 is configured to: cannot pass through the inside of the connection portion 130. The other end of the delivery wire 120 passes out of the connection 130 from the interior of the connection 130 and forms a loop back into the connection 130 and along the interior of the flexible penetrating cannula 110 to the proximal end of the flexible penetrating cannula 110.
In this embodiment, the fixing head 121 is a spherical member having a cross-sectional area larger than the hole of the wire 120 passing through the connecting portion 130. So that the fixing head 121 cannot pass through the hole. In other alternative embodiments, the fixing head 121 may also be any one of an ellipsoid shape, a cylindrical shape, a truncated cone shape, a conical shape, a triangular pyramid shape, or a combination of the above shapes, and is not limited to the above structural members.
In other alternative embodiments, one end of the wire may be fixed inside or outside the connecting portion by welding or bonding; the other end of the conveying wire penetrates out of the connecting part from the inside of the connecting part and forms a ring to penetrate into the connecting part again or the other end of the conveying wire forms a ring to penetrate into the connecting part and penetrate into the near end of the flexible penetrating cannula along the inside of the flexible penetrating cannula.
The connecting portion 130 has a cylindrical structure; the diameter of the connecting portion 130 is greater than or equal to the diameter of the flexible penetrating tube 110. In other alternative embodiments, the connecting portion 130 is semi-spherical, semi-ellipsoidal, circular truncated cone, or a combination thereof, and is not limited to the above structure.
The distal end surface of the connecting portion 130 is formed with a groove 133.
The groove 133 is intended to engage a central portion of the proximal disc face of the occluder 200 or of a fixation member 201 that may be present in the occluder 200.
As shown in fig. 3, a fixing member 201 is provided in the occluder 200. Of course, there are also occluders without fasteners, as shown in figure 4.
The occluding device 200 is a mesh structure.
The control portion 140 has an insertion channel 144 therein, and the proximal end of the flexible insertion tube 110 is inserted into the insertion channel 144.
The control part 140 further includes an adjusting member 145, which may be an adjusting nut, inserted into the lateral surface of the control part 140, and inserted into the insertion channel 144 from the outside of the control part 140, abutting against the flexible insertion tube 110, and the flexible insertion tube 110 may be fixed and released by the adjusting member 145.
The flexible penetrating pipe 110 and the connecting part 130 are arranged inside the cladding pipe in a penetrating way.
The covering tube is used for being inserted into a blood vessel of a human body, so that the flexible penetrating tube 110 can be conveniently inserted and moved in the covering tube without damaging the blood vessel.
The method of using the occluding device delivery device 100 of the present embodiment is briefly described below.
First, the sheath tube is inserted into a blood vessel of a human body to reach a surgical site, and then the occluder delivery device 100 in an initial state is inserted into the sheath tube and reaches the surgical site along the sheath tube.
In an initial state, the occluder 200 is connected to the connecting portion 130, and the other end (the end not connected to the fixing head) of the delivery wire 120 passes through the inside of the connecting portion 130 and penetrates through the mesh-shaped occluder 200 (since the occluder 200 is mesh-shaped, the delivery wire 120 easily passes through the mesh-shaped occluder 200), and then passes through the inside of the connecting portion 130 from the outside of the connecting portion 130, and then the delivery wire 120 extends from the inside of the flexible penetrating tube 110 to the control portion at the proximal end of the flexible penetrating tube 110.
When it is desired to release the occluding device 200, the other end of the delivery wire 120 at the proximal end is released, and then the flexible penetrating cannula 110 is pulled toward the proximal end, and at the same time, as the flexible penetrating cannula 110 is pulled out, since the fixing head 121 cannot penetrate through the hole in the connecting part 130, the end of the delivery wire 120 having the fixing head 121 moves toward the proximal end along with the flexible penetrating cannula 110, the other end of the delivery wire 120 is driven to move from the proximal end toward the distal end, and the other end of the delivery wire 120 moves from the proximal end toward the distal end along the inside of the flexible penetrating cannula 110, reaches the occluding device 200, and then penetrates out of the occluding device 200, thereby releasing the occluding device 200.
In the present invention, distal refers to the end of the device or member distal from the operator, while proximal refers to the end of the device or member proximal to the operator.
Example 2
As shown in fig. 5 and 6, the occluder delivery device 100 comprises: a flexible penetrating tube 110, a delivery wire 120, a connecting portion 130, a control portion 140, and a cover tube (not shown).
The connecting portion 130 is connected to the distal end of the flexible penetrating cannula 110, and the control portion 140 is connected to the proximal end of the flexible penetrating cannula 110.
The flexibility of the flexible penetrating tube 110 means that the penetrating tube can be bent to a certain degree, and the degree of bending can be set according to actual needs. Preferably, the flexible penetration tube 110 has a certain hardness so as to be penetratingly moved in the sheathing tube by being pushed and pulled.
The wire 120 is inserted through the connecting portion 130 and the cladding tube. The material of the delivery wire 120 may be selected from materials commonly used in the medical field.
As shown in fig. 7 and 8, the inside of the connecting portion 130 is provided with a first channel 131 and a second channel 132, the first channel 131 extends from the outer surface of the connecting portion 130 to the flexible penetrating cannula 110, both ports of the second channel 132 are located at the outer surface of the connecting portion 130, the delivery wire 120 passes through the first channel 131 and the second channel 132, the first end 121 of the delivery wire 120 is connected to the proximal end of the flexible penetrating cannula 110 from the outside of the flexible penetrating cannula 110, and the second end 122 of the delivery wire 120 is connected to the distal end of the flexible penetrating cannula 110 from the inside of the connecting portion 130.
As can be seen in fig. 6, the interior of the connecting portion 130 communicates with the interior of the flexible penetrating cannula 110 for the transmission wire 120 to pass through, and the transmission wire 120 passes out of the connecting portion 130 and forms a loop to re-penetrate into the connecting portion. The loop passes through the inside of the occluding device 200 and secures the occluding device 200 to the distal end face of the connecting part 130.
The occluder conveying device 100 utilizes the connecting portion 130 to penetrate through the transmission wire 120, so that the occluder 200 is fixed on the distal end face of the connecting portion 130, meanwhile, the occluder 200 can be released as long as the transmission wire 120 is pulled out of the occluder 200, the occluder conveying device 100 does not need to be provided with threads, and the occluder conveying device is simple in structure and convenient to operate.
The flexible penetrating cannula 110 includes an outer tube 111 and an inner core wire 112, the inner core wire 112 is inserted in the outer tube 111, a connecting portion 130 is connected to the distal end of the outer tube 111, and a second end 122 of the delivery wire 120 is connected to the distal end of the inner core wire 112.
The delivery wire 120 is coupled to the inner-core wire 112, and the occluding device 200 can be released by proximally withdrawing the inner-core wire 112.
By providing the flexible penetrating cannula 110 as an inner and outer member, the delivery wire 120 is easily withdrawn.
Of course, the present invention is not limited thereto. In other embodiments, instead of providing the inner core wire 112, the delivery wire 120 may be passed through the interior of the flexible trans-cannula 110, and the second end 122 of the delivery wire 120 may be directly connected to the control portion 140, such that the delivery wire 120 may be withdrawn from the proximal end of the flexible trans-cannula 110 by pulling the second end 122 of the delivery wire 120 at the control portion 140, thereby releasing the occluding device 200.
The second end 122 of the delivery wire 120 is welded to the distal end of the inner core wire 112.
The wire 120 and the inner core wire 112 are connected by welding and are fixed firmly.
Of course, the present invention is not limited thereto. In other embodiments, the second end 122 of the delivery wire 120 may also be secured to the distal end of the inner core wire 112 by binding or clamping, etc.
In the present embodiment, the distal end port of the first channel 131 and the distal end port of the second channel 132 are provided on the distal end surface of the connecting portion 130, and the proximal end port of the second channel 132 is provided on the side surface of the connecting portion 130.
The distal end port of the first channel 131 and the distal end port of the second channel 132 are disposed on the distal end surface of the connecting portion 130, so that the occluder 200 can be better fixed to the distal end surface of the connecting portion 130, and the proximal end port of the second channel 132 is disposed on the side surface of the connecting portion 130, so that the withdrawing and returning control portions of the delivery wire 120 are facilitated.
However, the present invention is not limited thereto, and the positions of the ports of the first and second passages 131 and 132 may be set at other positions on the connection portion 130 as needed.
The distal end surface of the connecting portion 130 is formed with a groove 133.
The groove 133 is intended to engage a central portion of the proximal disc face of the occluder 200 or of a fixation member 201 that may be present in the occluder 200.
As shown in fig. 3, a fixing member 201 is provided in the occluder 200. Of course, there are also occluders without fasteners, as shown in figure 4.
The occluding device 200 is a mesh structure.
The distal end port of the first channel 131 and/or the distal end port of the second channel 132 is provided at the bottom surface of the groove 133.
The distal end port of the first channel 131 and/or the distal end port of the second channel 132 is/are provided at the bottom surface of the groove 133, which may better secure the occluding device 200 to the distal end surface of the connecting part 130.
The connecting portion 130 has a cylindrical structure. The cylindrical connecting portion 130 is easier to insert and move, and does not damage the heart tissue. In other alternative embodiments, the connecting portion 130 is semi-spherical, semi-ellipsoidal, circular truncated cone, or a combination thereof, and is not limited to the above structure.
The diameter of the connecting portion 130 is greater than or equal to the diameter of the flexible penetrating tube 110. The diameter of the connecting portion 130 is greater than or equal to the diameter of the flexible penetrating pipe 110, so that the flexible penetrating pipe 110 can be conveniently inserted and moved, and the insertion and movement of the connecting portion 130 are further driven. And, it is more advantageous to firmly fix the occluding device 200 to the distal end surface of the connecting part 130.
The control portion 140 is internally provided with an insertion passage 144, and the insertion passage 144 communicates with the internal passage of the outer tube 111 so that the inner core wire 112 is inserted into the outer tube 111 from the proximal end of the control portion 140.
The control part 140 is further provided with a third passage 143 inside, and the third passage 143 extends from the side of the control part 140 to the penetration passage 144. The delivery wire 120 is inserted from the distal end port of the third channel 143 and exits from the proximal end port of the third channel 143, and exits the control portion 140 through the insertion channel 144.
The control portion 140 further includes an adjusting member 145, which may be an adjusting nut, inserted into a side surface of the control portion 140, inserted into the insertion passage 144 from the outside of the control portion 140, abutted against the outer tube 111, and further controlling the inner core wire 112, and the inner core wire 112 may be fixed and released by the adjusting member 145.
The control portion 140 further includes a control member 146, the control member 146 is connected to the proximal end of the inner core wire 112 and inserted into the insertion channel 144 from the proximal end of the control portion 140, and the control member 146 can press the delivery wire 120 against the inner side surface of the insertion channel 144 in order to fix the delivery wire 120 in addition to being capable of inserting the inner core wire 112.
The flexible penetrating pipe 110, the conveying wire 120 and the connecting part 130 are arranged inside the cladding pipe in a penetrating mode.
The covering tube is used for being inserted into a blood vessel of a human body, so that the flexible penetrating tube 110 can be conveniently inserted and moved in the covering tube without damaging the blood vessel.
The method of using the occluding device delivery device 100 is briefly described below.
First, the sheath tube is inserted into a blood vessel of a human body to reach a surgical site, and then the occluder delivery device 100 in an initial state is inserted into the sheath tube and reaches the surgical site along the sheath tube.
The initial state is the state shown in fig. 6, the occluder 200 is connected to the connecting portion 130, the inner core wire 112 is inserted into the outer tube 111, the second end 122 of the delivery wire 120 is connected to the distal end of the inner core wire 112, the delivery wire 120 passes through the first channel 131 from the second end 122 and out of the distal end port of the first channel 131, then passes through the mesh occluder 200 (since the occluder 200 is mesh-shaped, the delivery wire 120 easily passes through it), then passes through the distal end port of the second channel 132 into the second channel 132 and out of the connecting portion 130 from the proximal end port of the second channel 132, and then the delivery wire 120 extends from the outside of the flexible penetrating cannula 110 (inside the covering tube) to the control portion 140 at the proximal end of the flexible penetrating cannula 110, passes through the third channel 143, and then passes out of the penetrating channel 144.
When the occluder 200 needs to be released, the adjusting member 145 is firstly loosened to enable the inner core wire 112 to move, the inner core wire 112 is drawn out towards the proximal end through the control member 146, the first end 121 of the delivery wire 120 passes through the penetrating channel 144, the third channel 143, the second channel 132 and the occluder 200 as the inner core wire 112 moves towards the proximal end, and the occluder 200 is released when the first end 121 of the delivery wire 120 reaches the first channel 131.
Example 3
The occluder delivery device of example 3 is substantially the same as the occluder delivery device of example 2, except that:
as shown in fig. 9-10, the interior of the connecting portion 130 is hollow. The connecting portion 130 includes a cylindrical side wall 134 and an end wall 135 provided at one end of the cylindrical body formed by the side wall 134 to be opened. The end wall 135 is provided with two first openings 136 for the feed wire 120 to pass through. In the present embodiment, the first passage and the second passage communicate with each other, and a part of both are the inner space of the connection portion 130. The first passage further includes a first opening 136 in the end wall 135, and the second passage further includes a first opening 136 in the end wall 135 and a second opening 137 in the side wall 134.
The connecting part 130 is hollow, so that the wire conveying and feeding can be more conveniently inserted and moved, and the resistance of the wire conveying and feeding during insertion is reduced. And the hollow connecting part 130 is easier to manufacture, thereby saving the manufacturing cost.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. An occluder delivery device, comprising: flexible inserting pipe, wire feeding and connecting part;
the connecting part is connected to the distal end of the flexible penetrating cannula;
the inner part of the connecting part is communicated with the inner part of the flexible penetrating cannula so as to allow the conveying wire to penetrate through, and the conveying wire penetrates out of the connecting part and forms a ring to penetrate into the connecting part again.
2. The occluder delivery device of claim 1, wherein one end of the delivery wire has a retaining head configured to: cannot pass through the inside of the connecting part;
the other end of the wire is threaded out of the connecting part from the inside of the connecting part and forms a ring to penetrate into the connecting part again and to penetrate to the proximal end of the flexible penetrating cannula along the inside of the flexible penetrating cannula.
3. The occluder delivery device of claim 2, wherein the retaining head is shaped as any one of a sphere, an ellipsoid, a cylinder, a truncated cone, a cone, or a triangular pyramid, having a cross-sectional area larger than the bore through which the delivery wire passes out of the connection.
4. The occluder delivery device of claim 1, wherein one end of the delivery wire is secured to the interior of the connector portion; the other end of the wire is threaded out of the connecting part from the inside of the connecting part and forms a ring to penetrate into the connecting part again and to penetrate to the proximal end of the flexible penetrating cannula along the inside of the flexible penetrating cannula.
5. The occluder delivery device of claim 1, wherein one end of the delivery wire is secured to the exterior of the connector;
and the other end of the wire conveying pipe forms a ring and then penetrates into the connecting part and penetrates to the near end of the flexible penetrating cannula along the inside of the flexible penetrating cannula.
6. The occluder delivery device of claim 1, wherein the connecting portion is cylindrical, semi-spherical, semi-ellipsoidal or frustoconical in shape; the diameter of the connecting part is larger than or equal to that of the flexible penetrating pipe.
7. The occluder delivery device of claim 1,
the inside of connecting portion is equipped with first passageway and second passageway, first passageway is followed the surface of connecting portion extends to the flexible intubate of wearing, two ports of second passageway all are located the surface of connecting portion, the conveying silk passes first passageway with the second passageway, the first end that defeated silk was sent is followed the outside of flexible intubate is connected to the proximal end of flexible intubate of wearing, the second end that defeated silk was sent is followed the inside of connecting portion is connected to the distal end of flexible intubate of wearing.
8. The occluder delivery device of claim 7, wherein the connecting portion is hollow inside.
9. The occluder delivery device of claim 7, wherein the distal port of the first channel and the distal port of the second channel are disposed on the distal face of the connecting portion and the proximal port of the second channel is disposed on the side of the connecting portion;
a groove is formed on the distal end surface of the connecting part;
the distal end port of the first channel and/or the distal end port of the second channel is/are arranged on the bottom surface of the groove.
10. The occluder delivery device of claim 7, wherein the flexible insertion tube comprises an outer tube and an inner core wire, the inner core wire being inserted into the outer tube, the connecting portion being connected to a distal end of the outer tube, and the second end of the delivery wire being connected to a distal end of the inner core wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110448392.8A CN113180768A (en) | 2021-04-25 | 2021-04-25 | Stopper conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110448392.8A CN113180768A (en) | 2021-04-25 | 2021-04-25 | Stopper conveying device |
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| Publication Number | Publication Date |
|---|---|
| CN113180768A true CN113180768A (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110448392.8A Pending CN113180768A (en) | 2021-04-25 | 2021-04-25 | Stopper conveying device |
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| CN (1) | CN113180768A (en) |
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| CN104116574A (en) * | 2014-07-04 | 2014-10-29 | 先健科技(深圳)有限公司 | Plug and plugging device |
| CN203943701U (en) * | 2014-07-07 | 2014-11-19 | 宁波健世生物科技有限公司 | A kind of novel dismountable induction system |
| CN106923872A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Plugging device, conveyer and plugging system |
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|---|---|---|---|---|
| US20060025801A1 (en) * | 2004-07-30 | 2006-02-02 | Robert Lulo | Embolic device deployment system with filament release |
| US20080306504A1 (en) * | 2006-11-20 | 2008-12-11 | Thazin Win | Mechanically detachable vaso-occlusive device |
| CN104116574A (en) * | 2014-07-04 | 2014-10-29 | 先健科技(深圳)有限公司 | Plug and plugging device |
| CN203943701U (en) * | 2014-07-07 | 2014-11-19 | 宁波健世生物科技有限公司 | A kind of novel dismountable induction system |
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