CN107928735B - Anastomosis device for repairing tracheoesophageal fistula - Google Patents
Anastomosis device for repairing tracheoesophageal fistula Download PDFInfo
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- CN107928735B CN107928735B CN201711240433.4A CN201711240433A CN107928735B CN 107928735 B CN107928735 B CN 107928735B CN 201711240433 A CN201711240433 A CN 201711240433A CN 107928735 B CN107928735 B CN 107928735B
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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
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
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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
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00818—Treatment of the gastro-intestinal system
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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
- A61B2017/00831—Material properties
- A61B2017/00876—Material properties magnetic
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Abstract
An anastomosis device for tracheoesophageal fistula repair, comprising: the first magnet is a strip magnet; the second magnet is the same as the first magnet in size and shape, but the magnetizing direction is opposite; the anastomosis forceps are controlled by a gear structure and comprise a first jaw matched with a first magnet and a second jaw matched with a second magnet, the first jaw and the second jaw are translated to realize that the first magnet and the second magnet attract each other, and the first jaw and the second jaw are made of non-paramagnetic materials and have a locking function; compared with the prior art, the invention slowly squeezes the fistula openings through the magnets to ensure that the fistula openings at two ends of the tracheoesophageal are respectively and independently closed, and has the advantages of simple operation, good healing of the fistula openings and the like.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to an anastomosis device for repairing tracheoesophageal fistula.
Background
Tracheoesophageal fistulas are congenital or acquired causative agents that result in abnormal passage between the trachea and the esophagus. The clinical treatment method comprises the following steps: repairing and closing fistula by surgical suture and plugging by medical glue. The manual suture repair wound of the tracheoesophageal fistula is large, the operation is complicated, and the postoperative complications are more. Medical glue shutoff is often used for the less patient of fistula, is difficult to the shutoff to the bigger person of fistula, and the recurrence rate is higher after the shutoff. At present, no medical anastomosis instrument for repairing the tracheoesophageal fistula is available.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an anastomosis device for repairing tracheoesophageal fistula, which adopts strip-shaped primary and secondary magnets with trapezoidal cross sections, can close the fistula by magnetic squeezing force between the primary and secondary magnets, and can respectively complete the repair and healing of the fistula on the two sides of the esophagus and the trachea under the action of continuous squeezing force. The anastomosis forceps matched with the pressing magnet are anastomosis forceps which can facilitate the placement of the magnet and simplify the operation.
In order to achieve the purpose, the invention adopts the technical scheme that:
an anastomosis device for tracheoesophageal fistula repair, comprising:
the first magnet 1 is a strip magnet;
the second magnet 2 has the same size and shape as the first magnet 1, but the magnetizing direction is opposite;
the anastomosis forceps 3 is controlled by a gear structure, and comprises a first jaw 31 matched with the first magnet 1 and a second jaw 32 matched with the second magnet 2, wherein the first jaw 31 and the second jaw 32 are translated to attract the first magnet 1 and the second magnet 2, and the first jaw 31 and the second jaw 32 are made of non-paramagnetic materials and have a locking function.
The first magnet 1 is gap-matched to the first jaw 31 and the second magnet 2 is gap-matched to the second jaw 32.
In the anastomosis forceps 3, the bottom end of the second jaw 32 is provided with a parallel tooth opening 33, the parallel tooth opening 33 is matched and meshed with an arc tooth opening 34 at the front end of the first forceps handle 35, the first forceps handle 35 is connected with the second forceps handle 36 through a rivet 39, and when the first forceps handle 35 and the second forceps handle 36 rotate along the rivet 39, the arc tooth opening 34 drives the parallel tooth opening 33 to move, so that the second jaw 32 is driven to move in parallel.
The inner side of the tail end of the first forceps handle 35 is provided with a first lock catch 37, the inner side of the tail end of the second forceps handle 36 is provided with a second lock catch 38, and the first lock catch 37 and the second lock catch 38 are locked when buckled with each other, so that the first forceps handle 35 and the second forceps handle 36 are prevented from moving freely.
The first magnet 1 and the second magnet 2 can be made of different permanent magnet materials such as ferrite materials, samarium cobalt materials, neodymium iron boron materials, aluminum nickel cobalt and other magnetic materials, and the surfaces of the magnets can be processed by various surface treatment methods such as nickel plating, zinc plating, nickel-copper-nickel plating, titanium nitride plating, diamond-like plating, polytetrafluoroethylene plating, parylene plating and the like.
The anastomosis forceps 3 can be made of metal materials such as stainless steel, iron, copper or other alloys, and can also be made of high polymer materials such as polypropylene resin, hard plastics and the like.
The cross sections of the first magnet 1 and the second magnet 2 are trapezoidal, the magnetic poles of the top surfaces are opposite, the cross sections of the first jaw 31 and the second jaw 32 are trapezoidal grooves with openings at the top ends, the first magnet 1 is inserted along the head end of the first jaw 31 to realize matching, the second magnet 2 is inserted along the head end of the second jaw 32 to realize matching, and the top surfaces of the first magnet 1 and the second magnet 2 are opposite after matching.
The cross section of the first magnet 1 and the cross section of the second magnet 2 are semicircular, the magnetic poles of the bottom surfaces are opposite, a first rectangular through hole 11 is formed in the center of the end surface of the first magnet 1, a second rectangular through hole 12 is formed in the center of the end surface of the second magnet 2, the first jaw 31 and the second jaw 32 are cuboids, the first jaw 31 is inserted into the first rectangular through hole 11 to realize matching, the second jaw 32 is inserted into the second rectangular through hole 12 to realize matching, and the bottom surfaces of the first magnet 1 and the second magnet 2 are opposite after matching.
In the invention, the first pressing magnet 1 and the second pressing magnet 2 are identical in size and shape, and the length and the shape and the size of the cross section can be designed into a series of specifications with different parameters.
Compared with the prior art, the invention slowly squeezes the fistula through the magnet, so that the fistula at the two ends of the tracheoesophageal are respectively and independently closed, and the invention has the advantages of simple operation, good healing of the fistula and the like.
Drawings
Fig. 1 is a schematic structural view of a first magnet of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a second magnet of embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of the anastomosis forceps according to embodiment 1 of the present invention.
Fig. 4 is a sectional view of the magnet of example 1 after being inserted into the forceps head.
Figure 5 is a diagram of a tracheoesophageal fistula pattern.
Fig. 6 is a schematic view showing the state in which the magnets are respectively placed on the upper and lower sides of the tracheoesophageal fistula stoma according to example 1 by using the anastomotic forceps.
Fig. 7 is a schematic view showing the state of closing a tracheoesophageal fistula by pressing with a magnet of example 1.
Fig. 8 is a schematic view of a tracheoesophageal fistula with the fistula opening healed and the magnet removed.
Fig. 9 is a schematic structural view of a first magnet of embodiment 2 of the present invention.
Fig. 10 is a schematic structural view of a second magnet of embodiment 2 of the present invention.
Fig. 11 is a schematic structural view of an anastomosis forceps according to embodiment 2 of the present invention.
Fig. 12 is a cross-sectional view of the magnet of example 2 after it has been inserted into the head of the forceps.
Fig. 13 is a schematic view showing the state of example 2 in which magnets are respectively placed on the upper and lower sides of a tracheoesophageal fistula stoma by using a forceps.
Fig. 14 is a schematic view showing the state of closing a tracheoesophageal fistula by pressing with a magnet of example 2.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
Example 1
An anastomosis device for tracheoesophageal fistula repair, comprising:
a first magnet 1 having a trapezoidal bar-shaped magnet cross section as shown in fig. 1;
the second magnet 2 is a strip magnet with a trapezoidal cross section, has the same size and shape as the first magnet 1, but has opposite magnetizing direction, so as to ensure that the top surfaces of the two trapezoidal magnets attract each other, as shown in fig. 2;
the anastomosis forceps 3, which is controlled by a gear structure, as shown in fig. 3, includes a first jaw 31 and a second jaw 32 made of non-paramagnetic material, a parallel tooth opening 33 is formed at the bottom end of the second jaw 32, an arc-shaped tooth opening 34 is formed at the front end of a first forceps handle 35, a first lock 37 is formed at the inner side of the tail end of the first forceps handle 35, and a second lock 38 is formed at the inner side of the tail end of a second forceps handle 36. The parallel tooth 33 and the arc tooth 34 are engaged with each other, and the first lock catch 37 and the second lock catch 38 lock the handle to prevent the first handle 35 and the second handle 36 from moving freely. A rivet 39 is provided at the front section of the first and second handles 35, 36 to fix the first and second handles 35, 36 and to allow the handles to rotate along the rivet 39. When the first and second handles 35, 36 are rotated along the rivet 39, the arcuate notches 34 move the parallel notches 33 and the second jaw 32 moves in parallel. The cross sections of the first jaw 31 and the second jaw 32 are trapezoidal grooves with open top ends, the first magnet 1 and the second magnet 2 can be inserted into the trapezoidal grooves along the head ends of the first jaw 31 and the second jaw 32, and the trapezoidal groove structure can prevent the first magnet 1 and the second magnet 2 from being separated from the trapezoidal grooves.
As shown in fig. 4, a sectional view of the first and second magnets 1 and 2 inserted into the first and second bits 31 and 32 is shown.
As shown in fig. 5, 41 is trachea, 42 is esophagus, and 43 is tracheoesophageal fistula.
As shown in fig. 6, the first magnet 1, the second magnet 2, the first forceps head 31 and the second forceps head 32 are placed on the upper and lower sides of the tracheoesophageal fistula 43.
As shown in fig. 7, after the anastomosis forceps are removed, the first magnet 1 and the second magnet 2 squeeze closed the tracheoesophageal fistula 43.
As shown in fig. 8, after the tracheoesophageal fistula healed, the first magnet 1 and the second magnet 2 were removed.
The working principle is as follows:
before use, the first magnet 1 and the second magnet 2 are inserted into the trapezoidal grooves from the head ends of the first jaw 31 and the second jaw 32 respectively as shown in fig. 4. The tracheoesophageal fistula is separated and exposed as shown in fig. 5, and the first forceps head 31 and the second forceps head 32 of the anastomosis forceps 3 are opened to place the first magnet 1 and the second magnet 2 at the upper side and the lower side of the tracheoesophageal fistula 43 as shown in fig. 6. The anastomosis forceps 3 are removed and the first and second magnets 1, 2 squeeze closed the tracheoesophageal fistula 43 as shown in figure 7. As shown in fig. 8, the first magnet 1 and the second magnet 2 are removed after a period of operation after the fistula has healed.
Example 2
An anastomosis device for tracheoesophageal fistula repair, comprising:
a first magnet 1 having a body of a semi-cylindrical structure and a first rectangular through hole 11 formed in the center thereof along the major axis of the semi-cylindrical structure, as shown in fig. 9;
a second magnet 2, the main body of which is a semi-cylindrical structure, the center of which is provided with a second rectangular through hole 21 along the long axis of the semi-cylinder, the size and the shape of the second magnet 2 are the same as those of the first magnet 1, but the magnetizing directions are opposite, so as to ensure that the bottom surfaces of the two trapezoidal magnets attract each other, as shown in fig. 10;
the anastomosis forceps 3 is controlled by a gear structure, as shown in fig. 11, the first forceps head 31 and the second forceps head 32 can translate and are made of a non-paramagnetic material with a locking function, the first forceps head 31 and the second forceps head 32 are rectangular bodies, the first forceps head 31 and the second forceps head 32 can be inserted into the first rectangular through hole 11 and the second rectangular through hole 21 and can flexibly move along the long axis of the forceps heads, but the first magnet 1 and the second magnet 2 can be limited to rotate. The remaining structure of anastomosis forceps 3 corresponds to that of example 1.
As shown in fig. 12, a sectional view of the first and second magnets 1 and 2 inserted into the first and second bits 31 and 32 is shown.
As shown in fig. 13, the first magnet 1, the second magnet 2, the first forceps head 31 and the second forceps head 32 are placed on the upper and lower sides of the tracheoesophageal fistula 43.
As shown in fig. 14, after the anastomosis forceps are removed, the first magnet 1 and the second magnet 2 squeeze closed the tracheoesophageal fistula 43.
The working principle is in accordance with example 1.
According to the invention, the first magnet 1 and the second magnet 2 are translated through the anastomosis forceps 3 controlled by the gear structure, so that the fistula is squeezed slowly, and the combination and separation of the forceps head and the magnets are very convenient to operate, so that the good healing of the fistula is ensured.
Claims (7)
1. An anastomosis device for tracheoesophageal fistula repair, comprising:
a first magnet (1) which is a strip magnet;
the second magnet (2) is the same as the first magnet (1) in size and shape, but the magnetizing direction is opposite;
the anastomosis forceps (3) is controlled by a gear structure and comprises a first jaw (31) matched with a first magnet (1) and a second jaw (32) matched with a second magnet (2), a parallel tooth opening (33) is arranged at the bottom end of the second jaw (32), the parallel tooth opening (33) is matched and meshed with an arc-shaped tooth opening (34) at the front end of a first forceps handle (35), the first forceps handle (35) is connected with a second forceps handle (36) through a rivet (39), when the first clamp handle (35) and the second clamp handle (36) rotate along the rivet (39), the arc-shaped tooth opening (34) drives the parallel tooth opening (33) to move, thereby driving the second jaw (32) to move in parallel, translating the first jaw (31) and the second jaw (32) to realize that the first magnet (1) and the second magnet (2) are attracted, the first jaw (31) and the second jaw (32) are made of non-paramagnetic materials and have a locking function.
2. Anastomotic device for tracheoesophageal fistula repair according to claim 1, characterized in that the first magnet (1) is gap-fitted to the first jaw (31) and the second magnet (2) is gap-fitted to the second jaw (32).
3. The anastomotic device for tracheoesophageal fistula repair according to claim 1, wherein the first clamp handle (35) is provided with a first lock catch (37) at the inner side of the tail end, the second clamp handle (36) is provided with a second lock catch (38) at the inner side of the tail end, and the first lock catch (37) and the second lock catch (38) are locked when being locked, so that the first clamp handle (35) and the second clamp handle (36) are prevented from moving freely.
4. The anastomotic device for tracheoesophageal fistula repair according to claim 1, wherein the first magnet (1) and the second magnet (2) are formed by processing permanent magnetic materials and are treated by adopting a surface treatment process, and the anastomotic forceps (3) are processed by adopting metal materials or alloy materials or high polymer materials.
5. The anastomosis device for tracheoesophageal fistula repair of claim 4, wherein the permanent magnet material is a ferrite material, a samarium-cobalt material, a neodymium-iron-boron material or an alnico material, the surface treatment process is nickel plating, zinc plating, nickel-copper plating, titanium nitride plating, diamond-like plating, polytetrafluoroethylene plating or parylene plating, the metal material is stainless steel, iron or copper, and the polymer material is polypropylene resin or rigid plastic.
6. The anastomotic device for tracheoesophageal fistula repair according to any one of claims 1 to 5, wherein the first magnet (1) and the second magnet (2) are trapezoidal in cross section, the top surfaces of the magnets have opposite poles, the first jaw (31) and the second jaw (32) have trapezoidal grooves with open top ends, the first magnet (1) is inserted along the head end of the first jaw (31) to realize matching, the second magnet (2) is inserted along the head end of the second jaw (32) to realize matching, and the top surfaces of the first magnet (1) and the second magnet (2) are opposite to each other after matching.
7. The anastomotic device for tracheoesophageal fistula repair according to any one of claims 1 to 5, wherein the first magnet (1) and the second magnet (2) are semicircular in cross section, the bottom surfaces of the first magnet (1) and the second magnet (2) are opposite in magnetic polarity, a first rectangular through hole (11) is formed in the center of the end surface of the first magnet, a second rectangular through hole (12) is formed in the center of the end surface of the second magnet (2), the first jaw (31) and the second jaw (32) are cuboid, the first jaw (31) is inserted into the first rectangular through hole (11) to achieve matching, the second jaw (32) is inserted into the second rectangular through hole (12) to achieve matching, and the bottom surfaces of the first magnet (1) and the second magnet (2) are opposite after matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240433.4A CN107928735B (en) | 2017-11-30 | 2017-11-30 | Anastomosis device for repairing tracheoesophageal fistula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240433.4A CN107928735B (en) | 2017-11-30 | 2017-11-30 | Anastomosis device for repairing tracheoesophageal fistula |
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| CN107928735A CN107928735A (en) | 2018-04-20 |
| CN107928735B true CN107928735B (en) | 2020-04-28 |
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| CN201711240433.4A Active CN107928735B (en) | 2017-11-30 | 2017-11-30 | Anastomosis device for repairing tracheoesophageal fistula |
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Cited By (1)
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| WO2024052708A1 (en) * | 2022-09-06 | 2024-03-14 | Kovacs Krisztian | Magnetic press, and method restoration of works of art, especially for correction of damages of paintings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009290B (en) * | 2018-09-13 | 2024-04-23 | 西安交通大学医学院第一附属医院 | Magnetic anastomosis biliary tract recanalization device |
| CN114086116A (en) * | 2021-11-17 | 2022-02-25 | 安徽通灵仿生科技有限公司 | Corrosion-resistant coating on surface of motor rotor of catheter pump and preparation process thereof |
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| CN107928735A (en) | 2018-04-20 |
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