CN114010248B - Dual-channel magnetic anastomosis device and use method thereof - Google Patents
Dual-channel magnetic anastomosis device and use method thereof Download PDFInfo
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- CN114010248B CN114010248B CN202111354495.4A CN202111354495A CN114010248B CN 114010248 B CN114010248 B CN 114010248B CN 202111354495 A CN202111354495 A CN 202111354495A CN 114010248 B CN114010248 B CN 114010248B
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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
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
Abstract
The invention discloses a double-channel magnetic anastomosis device and a use method thereof, and belongs to the field of medical appliances. The invention relates to a double-channel magnetic anastomosis device, which comprises a first conveying channel, a second conveying channel and a magnet manipulator, wherein the tail ends of the first conveying channel and the second conveying channel are distributed in parallel, a magnet string I and a magnet string II are respectively and correspondingly arranged in the channels, the polarities of the magnet string I and the magnet string II are opposite, and the magnet string I and the magnet string II are respectively formed by coupling a certain number of magnet units through magnetic force; the magnet manipulator is used for controlling the advancing and retreating movement of the magnet string in the conveying channel. The invention overcomes the problem that the magnetic anastomosis technology in the prior art is inconvenient to apply, adopts a double-channel looping mode, can greatly improve the looping reliability of the magnet, is convenient for adjusting the looping size of the magnet, avoids using traditional force transmission devices such as connecting wires or connecting members, has simple structure and convenient operation, and greatly reduces the operation time and difficulty.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a double-channel magnetic anastomosis device and a use method thereof.
Background
The magnetic anastomosis technology adopts a magnetic compression mode to realize the penetration of the organ walls of human or animals, so that research results are published in the form of articles and patents at present, and the great technical problem still exists in how to form a magnetic ring by connecting the magnet segments conveyed into the organ through the endoscope tubule end to end in a simple and effective mode.
By searching, the patent application of publication number WO2018/0571613A2 proposes a magnetic anastomosis device in which a plurality of magnetic balls are arranged in a flexible tube to form a magnetic ring; the patent publication CN106999188A proposes a magnetic anastomosis device comprising a plurality of magnetic segments and radial connecting wires connected to the magnetic segments; the publication CN103930049 proposes a magnetic anastomosis device comprising magnets, rings mounted on the magnets, and connecting wires passing through each ring and pulling the magnets into coupling when tightened; the publication CN111419315a proposes a device comprising a plurality of magnets of trapezoidal cross section and a guide wire passing through the middle hole of the magnets, the guide wire being tightened to achieve coupling of the magnets into a loop; patent publication CN109788953a proposes a wire with a plurality of magnets fixed thereon, which changes from a straight state to a loop coil after exceeding a certain critical temperature, the loop coils being attracted to each other to form a magnetic anastomosis device; the publication CN107889454a proposes a different way of transporting and forming a magnetic ring, compressing a magnet segment constituting the magnetic ring in advance, transporting the compressed magnet segment into an organ, and then restoring the magnet segment to a ring shape by a force generated by a connection member mounted on the magnet segment. In all the above solutions, the auxiliary means for controlling the operation of the magnets and the magnet ring are also included.
Comprehensive analysis shows that the above patent publication technology and the prior art all adopt a single-channel magnet section conveying mode, and various force transmission devices are fixedly arranged on the magnet sections in advance and used for changing the positions and angles of the magnet sections which are arranged in a straight line. These force transfer means comprise connecting wires, guide wires and temperature controlled wires fixed outside the magnet segments or through the central holes of the magnet segments, flexible tubes with deformation memory function, connecting members mounted on the magnet segments, etc.
These different force transfer devices have a number of problems in practical use. Firstly, the operation difficulty of controlling the magnet section by tightening the connecting wire is high, so that the operation time is long, and the pain of a patient is increased. Secondly, all the magnet segments constituting the magnet ring must be integrally and once delivered into the organ, so that not only the size of the magnet ring cannot be flexibly adjusted, but also the magnet ring can not be continuously formed, and the magnetic anastomosis force with larger compression force can not be formed. Third, the prior art uses a single channel looping technique, and the magnet string is difficult to remove after looping in the organ. And the magnet segment has high manufacturing cost and is limited in practical application.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to solve the problem that the magnetic anastomosis technology in the prior art is inconvenient to apply, and aims to provide a double-channel magnetic anastomosis device and a use method thereof.
2. Technical proposal
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the invention relates to a double-channel magnetic anastomosis device, which comprises a first conveying channel, a second conveying channel and a magnet manipulator, wherein the tail ends of the first conveying channel and the second conveying channel are distributed in parallel, a magnet string I and a magnet string II are correspondingly arranged in the channels respectively, the polarities of the magnet string I and the magnet string II are opposite, and the magnet string I and the magnet string II are respectively formed by coupling a certain number of magnet units through magnetic force; the magnet manipulator is used for controlling the advancing and retreating movement of the magnet string in the conveying channel.
Further, the magnet unit is made of a permanent magnet and has a sphere structure; or the magnet unit is a cylinder structure with a circular or polygonal cross section, and the two ends of the cylinder are spherical curved surfaces or non-parallel planes; the enveloping circle diameter of the magnet unit is D0, the axial length is h, and the magnetic pole connecting line coincides with the axis of the magnet unit.
Further, the magnet unit is wrapped with soluble materials, and the whole appearance is a sphere or a capsule.
Still further, the magnet manipulator comprises a motion controller, an elastic cannula and a pipe joint, one end of the elastic cannula is connected with the motion controller, the other end of the elastic cannula is provided with the pipe joint for contacting the magnet unit, the elastic cannula and the pipe joint are respectively inserted into the first conveying channel and the second conveying channel correspondingly, and the motion controller is used for independently or synchronously controlling the motion of the elastic cannula in the conveying channels.
Still further, the pipe joint includes a non-absorptive pipe joint made of a non-magnetic polymer material and a absorptive pipe joint made of a magnet or a material having a negative pressure seal.
Further, the ends of the elastic cannula in the first conveying channel and the second conveying channel are provided with different pipe joints, namely an adsorptive pipe joint and a wedge-shaped non-adsorptive pipe joint, and the magnet manipulator is used for controlling the relative movement of the two elastic cannula.
Furthermore, at least one group of magnet strings are respectively arranged in the first conveying channel and the second conveying channel, an isolation unit is arranged between the magnet strings in each conveying channel, a plurality of magnet strings and the isolation unit jointly form a composite magnet string, and the polarities of the composite magnet strings in the two conveying channels are opposite.
Furthermore, the isolation units are spheres or capsules made of non-toxic non-magnetic materials, and the same composite magnet string can be provided with isolation units with different components.
The application method of the double-channel magnetic anastomosis device provided by the invention comprises the following steps when applied to a magnet string looping process:
s1, extending an endoscope pipeline provided with a first conveying channel and a second conveying channel into an organ, arranging a magnet string I and a magnet string II into a straight shape, respectively and correspondingly loading the magnet string I and the magnet string II into the first conveying channel and the second conveying channel, respectively, and installing non-adsorptive pipe joints at the end parts of the elastic insertion pipes, and correspondingly loading the non-adsorptive pipe joints into the first conveying channel and the second conveying channel respectively;
s2, operating a magnet manipulator, synchronously pushing the magnet strings I and II to the tail end of the conveying pipeline by the elastic insertion pipe, controlling the elastic insertion pipe to move by the same step length when the magnet strings reach the tail end of the conveying pipeline, synchronously pushing out the first magnet unit in each magnet string from the conveying pipeline, and connecting the first magnet units of the magnet strings I and II together under the action of magnetic force;
s3, continuing to operate the magnet manipulator, and synchronously moving the elastic insertion tube each time so that the magnet units of each magnet string are pushed out of the conveying pipeline one by one; stopping pushing when the last magnet unit of each magnet string is in the conveying pipeline, moving the head of the endoscope, driving the magnet strings connected together to reach the organ designated position, and pushing out the last magnet unit to form a whole magnet ring;
and S4, when the composite magnet string is adopted, repeating the steps S2 and S3, so that a magnet ring group can be formed, and simultaneously, the isolation unit is sent into the organ.
The application method of the double-channel magnetic anastomosis device provided by the invention comprises the following steps when being applied to opening a magnet ring to take out an organ:
a1, installing different pipe joints at the ends of elastic insertion pipes in the first conveying channel and the second conveying channel, wherein one pipe joint is an adsorptive pipe joint, the other pipe joint is a wedge-shaped non-adsorptive pipe joint, and controlling the tail ends of endoscope pipelines provided with the first conveying channel and the second conveying channel to be close to a magnet ring;
a2, operating a magnet manipulator, extending an elastic cannula provided with an adsorptive tube joint out of the conveying channel, and adsorbing the elastic cannula and a magnet unit in a magnet ring together; controlling the tail end of the endoscope pipeline to lift the magnet ring, and adjusting the magnet ring to be positioned between the two conveying channels;
a3, operating a magnet manipulator, extending an elastic cannula provided with a wedge-shaped non-adsorptive pipe joint downwards, keeping the long side of the wedge-shaped non-adsorptive pipe joint close to the adsorptive pipe joint, and disconnecting a magnet ring under the suction force of the adsorptive pipe joint and the reverse thrust force of the wedge-shaped non-adsorptive pipe joint to form a linear arrangement magnet string under the magnetic force;
a4, operating the magnet manipulator to enable the elastic cannula adsorbed with the magnet string to move outwards of the organ, and finally taking out the magnet string.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) According to the magnetic anastomosis device, two magnet strings are synchronously pushed out from two adjacent conveying channels in a double-channel looping mode, the heads of the magnet strings are naturally connected under the action of magnetic force, and the looping reliability of the magnets is greatly improved.
(2) The magnetic anastomosis device disclosed by the invention can reasonably adjust the number of the magnet units in the magnet string and the distance between the conveying channels according to actual application requirements, and is convenient for adjusting the size of the magnet ring.
(3) The magnetic anastomosis device can adopt a composite magnetic body string formed by the magnetic body string and the isolation unit in each conveying channel, can continuously form a magnetic body ring group formed by coupling a plurality of magnetic body rings, and is convenient for adjusting the anastomosis force of the magnetic body rings in different organs.
(4) The magnetic anastomosis device can realize opening and taking out of the magnet ring in the organ by utilizing the structure and motion control of different pipe joints in a double-channel looping mode, and can reduce the pain time of patients.
(5) The magnetic anastomosis device can conveniently move the position of the magnet ring by utilizing the conveying channel, avoids using force transmission devices such as connecting wires or connecting members, has simple structure and convenient operation, and greatly reduces the operation time and difficulty.
Drawings
FIG. 1 is a schematic view of a magnet delivery state of a dual channel magnetic anastomosis device of the present invention;
FIG. 2 is a schematic diagram of the front and side view of a cylinder section magnet unit according to the present invention;
FIG. 3 is a schematic diagram of the front and side view of the configuration of the magnet unit of the present invention after wrapping the soluble material;
FIG. 4 is a schematic front and side view of a non-absorptive pipe joint of the present invention in the shape of a circular pipe;
FIG. 5 is a schematic diagram of the front and side view of a suction pipe joint made of magnetic material according to the present invention;
FIG. 6 is a schematic diagram of the front and side view of a wedge-shaped non-absorptive pipe joint of the present invention;
FIG. 7 is a schematic diagram of a magnet looping process according to the present invention;
FIG. 8 is a schematic diagram of a magnet looping process according to the present invention;
FIG. 9 is a schematic diagram showing a state in which a magnet string is completely looped in the present invention;
FIG. 10 is a schematic view showing an initial position state of opening a magnet ring according to the present invention;
FIG. 11 is a schematic view showing a state in which a magnet ring is completely opened in a straight shape in the present invention;
FIG. 12 is a schematic diagram of a composite magnet string transport state according to the present invention;
FIG. 13 is a schematic view of a magnet ring structure composed of two magnet rings according to the present invention.
Reference numerals in the schematic drawings illustrate:
100. the device comprises a first conveying channel, 101, a second conveying channel, 201, a magnet string I,202, a magnet string II,203, a magnet unit, 204, a soluble material, 205, an isolation unit, 300, a magnet manipulator, 301, an elastic cannula, 302, a pipe joint, 303, a motion controller, 304, a non-adsorptive pipe joint, 305, an adsorptive pipe joint, 306, a wedge-shaped non-adsorptive pipe joint, 400, a magnet ring, 401 and a magnet ring group.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention is further described below with reference to examples.
Example 1
As shown in fig. 1-13, the dual-channel magnetic anastomosis device of the present embodiment includes a first conveying channel 100, a second conveying channel 101 and a magnet manipulator 300, wherein the ends of the first conveying channel 100 and the second conveying channel 101 are distributed in a flush manner, a magnet string I201 and a magnet string II202 are respectively and correspondingly installed in the channels, the polarities of the magnet string I201 and the magnet string II202 are opposite, and in particular, a certain number of magnet units 203 are formed by magnetic coupling; the magnet manipulator 300 is used for controlling the advancing and retreating movement of the magnet string in the conveying channel. The magnet strings are respectively referred to as a magnet string I201 and a magnet string II202, and the conveying channels are respectively referred to as a first conveying channel 100 and a second conveying channel 101, as shown in fig. 1, the magnet string I201 is distributed in the first conveying channel 100, and the magnet string II202 is distributed in the second conveying channel 101.
Specifically, in this embodiment, the magnet unit 203 is made of a permanent magnet, and the magnet unit 203 may have a spherical structure, which is not illustrated in the specific drawings; or the magnet unit 203 is a cylinder structure with a circular or polygonal cross section, and two ends of the cylinder are spherical curved surfaces or non-parallel planes, wherein when the cross section of the magnet unit 203 is circular and the two ends are spherical curved surfaces, a capsule structure is formed, and the illustration is not shown any more; when the section of the magnet unit 203 is polygonal, a polygonal prismatic structure is formed, and both ends of the prismatic structure can adopt spherical curved surfaces or non-parallel planes, and when the spherical curved surfaces are adopted, the curved surfaces at both ends and the middle prismatic body are in smooth transition, which is not shown in the drawing; a schematic structure of a magnet unit 203 with a circular cross-section and two non-parallel planes is shown in fig. 2, and the rest of the structure is not shown here; the cross-sectional envelope circle diameter of the magnet unit 203 is D0, the axial length is h, i.e., the axial maximum length is h, and the magnetic pole connecting line coincides with the axis of the magnet unit.
The magnet manipulator 300 in this embodiment includes a motion controller 303, an elastic cannula 301, and a tube connector 302, one end of the elastic cannula 301 is connected to the motion controller 303, and the other end is provided with the tube connector 302 for contacting the magnet unit 203, the elastic cannula 301 and the tube connector 302 are respectively inserted into the first delivery channel 100 and the second delivery channel 101, and the motion controller 303 is used for independently or synchronously controlling the motion of the elastic cannula 301 in the delivery channels. As shown in fig. 1, the motion controller 303 is provided with two groups of elastic cannulas 301 and pipe joints 302, each group is inserted into the first conveying channel 100 and the second conveying channel 101, and the motion of each group of elastic cannulas 301 can be controlled independently or synchronously. In actual use, the pipe joint 302 directly contacts with the magnet string in the conveying channel, and the motion controller 303 controls the linear motion of the elastic insertion pipe 301 in the conveying channel, so that the motion of the magnet string in the conveying channel can be controlled, and the process of pushing the magnet string out of the conveying channel or pulling the magnet string into the conveying channel from the outside is realized. Specifically, the first conveying channel 100 and the second conveying channel 101 may be circular pipes made of polymer materials, and the ends of the circular pipes are flush and have the same pipe diameter D1, as shown in fig. 7, D0 < D1 < 3×d0; the center distances between the pipe ends of the first conveying channel 100 and the second conveying channel 101 are D2, D0 < D2 < k x D0, and k is determined by the number of the magnet units 203 included in the magnet string and D0, which are not described here, so as to ensure that the magnet string I201 and the magnet string II202 can be smoothly pushed in the corresponding first conveying channel 100 and second conveying channel 101 and distributed in a straight line. The magnet manipulator 300 and the motion controller 303 thereof in this embodiment are used for controlling and driving the elastic cannula 301 to operate in the conveying channel, and the specific driving power is designed as a mature technology known in the industry at present, and is intended to be capable of pushing the elastic cannula 301 to reciprocate, which is not described herein. In actual operation, the magnet manipulator 300 pushes the magnet string I201 and the magnet string II202 out of the ends of the first conveying channel 100 and the second conveying channel 101 at a certain speed synchronously, and the magnet string I201 and the magnet string II202 form a magnet ring 400 under the interaction of magnetic force.
Example 2
The dual-channel magnetic anastomosis device of the present embodiment is substantially the same as that of embodiment 1, and further, the magnet unit 203 is wrapped with the soluble material 204, and the whole appearance is in the form of a sphere or capsule, so as to facilitate the transportation in the transportation channel and the formation of the magnet ring 400, and is particularly suitable for the case that the section of the magnet unit 203 is polygonal or the two ends are in non-parallel planar structures. As shown in fig. 3, the magnet unit 203 is wrapped with the soluble material 204, and the whole magnet unit 203 is in a capsule structure, the soluble material 204 is fed into the organ together with the magnet unit 203 and can be automatically dissolved, so that the magnet unit 203 can be automatically assembled to form the magnet ring 400.
Example 3
A dual channel magnetic anastomosis device according to the present embodiment is substantially the same as the above embodiment, and more specifically, the tube connector 302 includes a non-absorptive tube connector 304 and a absorptive tube connector 305, as shown in fig. 4 and 5, wherein the non-absorptive tube connector 304 is made of a non-magnetic polymer material, and the absorptive tube connector 305 may be made of a magnet or a material with a negative pressure seal. When the pipe joint is specifically used, different pipe joint forms can be correspondingly and selectively installed according to different use environments. If the magnet string is required to be pushed out of the conveying channel, the non-adsorptive tube joints 304 are disposed in the first conveying channel 100 and the second conveying channel 101, and are only used for contacting and pushing the magnet string I201 and the magnet string II202, so that the smooth separation of the magnet string I201 and the magnet string II202 from the conveying channel is not affected, and the pushing surface of the non-adsorptive tube joint 304 can be correspondingly set to be an arc surface corresponding to the integral end of the magnet unit 203. When the magnet ring 400 needs to be broken and the magnet string is taken out, different pipe joints are respectively installed in the first conveying channel 100 and the second conveying channel 101, one is an adsorptive pipe joint 305, the other is a non-adsorptive pipe joint 304, and particularly as shown in fig. 10, the non-adsorptive pipe joint 304 can be in a wedge-shaped non-adsorptive pipe joint 306 structure, as shown in fig. 6, the end surface of the wedge-shaped non-adsorptive pipe joint 306, which is used for being in contact with the magnet unit 203, is provided with a wedge-shaped inclined surface, and forms a long-edge tip towards one side of the adsorptive pipe joint 305, and at the moment, the magnet manipulator 300 is used for controlling the relative movement of the two elastic cannulas 301, so that the magnet ring 400 can be broken to form a straight line distribution under the upward adsorptive force action of the adsorptive pipe joint 305 and the downward thrust action of the wedge-shaped non-adsorptive pipe joint 306.
Example 4
The two-channel magnetic anastomosis device of the present embodiment is substantially the same as the above embodiment, and further, the two-channel magnetic anastomosis device of the present embodiment can further realize continuous looping of a plurality of magnet loops 400 to increase the anastomosis force, specifically, as shown in fig. 12 and 13, at least one group of magnet strings are respectively disposed in the first conveying channel 100 and the second conveying channel 101, an isolation unit 205 is disposed between the magnet strings in each conveying channel, and a plurality of magnet strings and the isolation unit 205 form a composite magnet string together, and similarly, the polarities of the composite magnet strings in the two conveying channels are opposite to realize smooth looping. The isolation unit 205 is a sphere or capsule made of non-toxic non-magnetic material, and has a size similar to that of the magnet unit 203, so as to reduce the magnetic force between magnet strings, and specifically, the isolation unit 205 with different components can be used on the same compound magnet string by adopting related tablets or capsules required by surgery or organ function recovery. The composite magnet string is also simultaneously pushed out of the end of the delivery channel by the flexible cannula 301 at a speed to form a plurality of magnet clusters 401 coupled to each other. The number of magnet strings in the composite magnet string in each conveying channel is determined according to the actually required anastomosis force, and different magnet strings can adopt different shapes and numbers of magnet units 203 according to the requirement.
Example 5
The application method of the dual-channel magnetic anastomosis device of the present embodiment, that is, the magnetic anastomosis device of the above embodiment is adopted, in specific application, the first conveying channel 100 is installed in an endoscope channel and coincides with a biopsy channel of an endoscope, the second conveying channel 101 is installed in the endoscope channel or is attached to the outside of the endoscope channel, and when the magnetic anastomosis device is applied in a magnet string looping process, as shown in fig. 7-9, the method specifically includes the following steps:
s1, extending an endoscope pipeline provided with a first conveying channel 100 and a second conveying channel 101 into an organ, arranging a magnet string I201 and a magnet string II202 into a straight shape, respectively and correspondingly loading the endoscope pipeline into the first conveying channel 100 and the second conveying channel 101, and respectively placing corresponding elastic cannulas 301 into the first conveying channel 100 and the second conveying channel 101;
s2, operating the motion controller 303, synchronously pushing the magnet string I201 and the magnet string II202 to the tail end of the conveying pipeline by the elastic insertion pipe 301, controlling the elastic insertion pipe 301 to move by the same step length when the magnet string reaches the tail end of the conveying pipeline, synchronously pushing the first magnet unit 203 in each magnet string out of the conveying pipeline, and connecting the first magnet units 203 of the magnet string I201 and the magnet string II202 together under the action of magnetic force;
s3, continuing to operate the motion controller 303, and synchronously moving the elastic insertion tube 301 each time so that the magnet units 203 of each magnet string are pushed out of the conveying pipeline one by one; stopping pushing when the last magnet unit 203 of each magnet string is in the conveying pipeline, moving the head of the endoscope, driving the magnet strings connected together to reach the organ designated position, and pushing out the last magnet unit 203 to form the whole magnet ring 400;
and S4, when the composite magnet string is adopted, repeating the steps S2 and S3, so that the magnet ring group 401 can be formed, and simultaneously, the isolation unit 205 is sent into the organ.
Example 6
The method for using the dual-channel magnetic anastomosis device according to the present embodiment, when applied to the opening of the magnet ring 400 to remove the organ, comprises the following steps as shown in fig. 10 and 11:
a1, the ends of the elastic cannulas 301 in the first conveying channel 100 and the second conveying channel 101 are provided with different pipe joints 302, one is an adsorptive pipe joint 305, the other is a wedge-shaped non-adsorptive pipe joint 306, and the tail ends of the endoscope pipelines provided with the first conveying channel 100 and the second conveying channel 101 are controlled to be close to the magnet ring 400;
a2, operating the motion controller 303, and extending the elastic cannula 301 provided with the adsorptive tube joint 305 out of the conveying channel and adsorbing the elastic cannula and the magnet unit 203 in the magnet ring 400 together; controlling the tail end of the endoscope channel to lift the magnet ring 400, and adjusting the magnet ring 400 to be positioned between the two conveying channels;
a3, operating the motion controller 303, extending the elastic cannula 301 provided with the wedge-shaped non-adsorptive pipe joint 306 downwards, keeping the long side of the wedge-shaped non-adsorptive pipe joint 306 close to the adsorptive pipe joint 305, disconnecting the magnet ring 400 under the suction force of the adsorptive pipe joint 305 and the reverse thrust force of the wedge-shaped non-adsorptive pipe joint 306, and forming a linear arrangement magnet string under the magnetic force;
a4, operating the motion controller 303 to enable the elastic cannula 301 with the magnet string adsorbed to move outwards, and finally taking out the magnet string.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (9)
1. The utility model provides a binary channels magnetism anastomoses device which characterized in that: the device comprises a first conveying channel (100), a second conveying channel (101) and a magnet manipulator (300), wherein the tail ends of the first conveying channel (100) and the second conveying channel (101) are distributed in a flush mode, a magnet string I (201) and a magnet string II (202) are correspondingly arranged in the channels respectively, the polarities of the magnet string I (201) and the magnet string II (202) are opposite, and a certain number of magnet units (203) are formed through magnetic coupling respectively; the magnet manipulator (300) is used for controlling the advancing and retreating movement of the magnet string in the conveying channel;
the magnet manipulator (300) comprises a motion controller (303), an elastic cannula (301) and a pipe joint (302), one end of the elastic cannula (301) is connected with the motion controller (303), the other end of the elastic cannula (301) is provided with the pipe joint (302) for contacting the magnet unit (203), the elastic cannula (301) and the pipe joint (302) are respectively inserted into the first conveying channel (100) and the second conveying channel (101) correspondingly, and the motion controller (303) is used for independently or synchronously controlling the motion of the elastic cannula (301) in the conveying channels.
2. The dual channel magnetic anastomosis device of claim 1, wherein: the magnet unit (203) is made of a permanent magnet, and the magnet unit (203) is of a sphere structure; or the magnet unit (203) is a cylinder structure with a circular or polygonal cross section, and the two ends of the cylinder are spherical curved surfaces or non-parallel planes; the diameter of the enveloping circle of the magnet unit (203) is D0, the axial length is h, and the magnetic pole connecting line coincides with the axis of the magnet unit (203).
3. The dual channel magnetic anastomosis device of claim 1, wherein: the magnet unit (203) is externally wrapped with a soluble material (204), and the whole appearance is a sphere or a capsule body.
4. The dual channel magnetic anastomosis device of claim 1, wherein: the pipe joint (302) comprises a non-absorptive pipe joint (304) and a absorptive pipe joint (305), wherein the non-absorptive pipe joint (304) is made of a non-magnetic high polymer material, and the absorptive pipe joint (305) is made of a magnet or a material with negative pressure sealing.
5. The dual channel magnetic anastomosis device of claim 4, wherein: different pipe joints (302) are arranged at the ends of the elastic cannulas (301) in the first conveying channel (100) and the second conveying channel (101), the pipe joints are respectively an adsorptive pipe joint (305) and a wedge-shaped non-adsorptive pipe joint (306), and the magnet manipulator (300) is used for controlling the relative movement of the two elastic cannulas (301).
6. The dual channel magnetic anastomosis device of any one of claims 1-5, wherein: at least one group of magnet strings are respectively placed in the first conveying channel (100) and the second conveying channel (101), an isolation unit (205) is arranged among a plurality of magnet strings in each conveying channel, the plurality of magnet strings and the isolation unit (205) jointly form a composite magnet string, and the polarities of the composite magnet strings in the two conveying channels are opposite.
7. The dual channel magnetic anastomosis device of claim 6, wherein: the isolation units (205) are spheres or capsules made of non-toxic non-magnetic materials, and the isolation units (205) with different components can be adopted on the same composite magnet string.
8. The application method of the double-channel magnetic anastomosis device is characterized by comprising the following steps of: when applied to a magnet string looping process, the method comprises the following steps:
s1, extending an endoscope pipeline provided with a first conveying channel (100) and a second conveying channel (101) into an organ, arranging a magnet string I (201) and a magnet string II (202) into a straight shape, respectively and correspondingly arranging the magnet string I and the magnet string II into the first conveying channel (100) and the second conveying channel (101), respectively arranging non-adsorptive pipe joints (302) at the end parts of elastic insertion pipes (301), and respectively arranging the non-adsorptive pipe joints into the first conveying channel (100) and the second conveying channel (101);
s2, operating a magnet manipulator (300), wherein an elastic insertion tube (301) synchronously pushes a magnet string I (201) and a magnet string II (202) to the tail end of a conveying pipeline, when the magnet string reaches the tail end of the conveying pipeline, controlling the elastic insertion tube (301) to move by the same step length, synchronously pushing out a first magnet unit (203) in each magnet string from the conveying pipeline, and connecting the first magnet units (203) of the magnet string I (201) and the magnet string II (202) together under the action of magnetic force;
s3, continuing to operate the magnet manipulator (300), and synchronously moving the elastic insertion tube (301) each time so that the magnet units (203) of each magnet string are pushed out of the conveying pipeline one by one; stopping pushing when the last magnet unit (203) of each magnet string is remained in the conveying pipeline, moving the endoscope head, driving the magnet strings connected together to reach the organ designated position, and pushing out the last magnet unit (203) to form the whole magnet ring (400);
and S4, when the composite magnet string is adopted, repeating the steps S2 and S3 to form a magnet ring group (401), and simultaneously sending the isolation unit (205) into the organ.
9. The application method of the double-channel magnetic anastomosis device is characterized by comprising the following steps of: when applied to opening a magnet ring (400) to remove an organ, comprising the steps of:
a1, the ends of elastic cannulas (301) in the first conveying channel (100) and the second conveying channel (101) are provided with different pipe joints (302), one is an adsorptive pipe joint (305), the other is a wedge-shaped non-adsorptive pipe joint (306), and the tail ends of endoscope pipelines provided with the first conveying channel (100) and the second conveying channel (101) are controlled to be close to a magnet ring (400);
a2, operating the magnet manipulator (300), and extending the elastic cannula (301) provided with the adsorptive tube joint (305) out of the conveying channel and adsorbing the elastic cannula and the magnet unit (203) in the magnet ring (400) together; controlling the tail end of the endoscope pipeline to lift the magnet ring (400), and adjusting the magnet ring (400) to be positioned between the two conveying channels;
a3, operating the magnet manipulator (300), extending the elastic cannula (301) provided with the wedge-shaped non-adsorptive pipe joint (306) downwards, keeping the long side of the wedge-shaped non-adsorptive pipe joint (306) close to the adsorptive pipe joint (305), and disconnecting the magnet ring (400) under the suction force of the adsorptive pipe joint (305) and the reverse thrust force of the wedge-shaped non-adsorptive pipe joint (306) and forming a linear arrangement magnet string under the magnetic force;
a4, operating the magnet manipulator (300) to enable the elastic cannula (301) with the magnet string adsorbed to move outwards of the organ, and finally taking out the magnet string.
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|---|---|---|---|---|
| US6632229B1 (en) * | 1999-08-19 | 2003-10-14 | Yugengaisha Pacs Optica Japan | Organ anastomosing apparatus and method |
| WO2019232526A1 (en) * | 2018-06-02 | 2019-12-05 | G.I. Windows, Inc. | Systems, devices, and methods for delivering and positioning magnetic anastomosis compression devices |
| CN112754581A (en) * | 2021-01-06 | 2021-05-07 | 张铂虎 | Magnetic anastomosis ring forming system and ring forming method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8118821B2 (en) * | 2007-10-09 | 2012-02-21 | Cook Medical Technologies Llc | Magnetic anastomosis device having improved delivery |
| EP2839796A1 (en) * | 2013-08-23 | 2015-02-25 | Cook Medical Technologies LLC | Endovascular delivery system for magnetic compression vascular anastomosis |
| US20190274687A1 (en) * | 2016-09-20 | 2019-09-12 | Neurotronic, Inc. | Magnetic anastomosis devices |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6632229B1 (en) * | 1999-08-19 | 2003-10-14 | Yugengaisha Pacs Optica Japan | Organ anastomosing apparatus and method |
| WO2019232526A1 (en) * | 2018-06-02 | 2019-12-05 | G.I. Windows, Inc. | Systems, devices, and methods for delivering and positioning magnetic anastomosis compression devices |
| CN112754581A (en) * | 2021-01-06 | 2021-05-07 | 张铂虎 | Magnetic anastomosis ring forming system and ring forming method thereof |
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