CN102835978A - Magnetic device for establishing intrahepatic portacaval shunt under intervention - Google Patents
Magnetic device for establishing intrahepatic portacaval shunt under intervention Download PDFInfo
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- CN102835978A CN102835978A CN2012102904478A CN201210290447A CN102835978A CN 102835978 A CN102835978 A CN 102835978A CN 2012102904478 A CN2012102904478 A CN 2012102904478A CN 201210290447 A CN201210290447 A CN 201210290447A CN 102835978 A CN102835978 A CN 102835978A
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- permanent magnet
- conduit
- catheter
- magnetic device
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Abstract
The invention discloses a magnetic device for establishing intrahepatic portacaval shunt under intervention. The magnetic device comprises a pair of permanent magnet groups, wherein each permanent magnet group consists of a first permanent magnet and a second permanent magnet; the first permanent magnets and the second permanent magnets attract each other end to end; each first permanent magnet is provided with a catheter matched with the first permanent magnet; one end of the catheter passes through the central hole of each first permanent magnet for fixing; and each second permanent magnet is provided with a central hole of which the diameter is larger than the outer diameter of the catheter. Shunt from a portal vein branch to a hepatic vein is completed by using two permanent magnets of corresponding sizes and shapes, so that the defect of gradual narrowing even blockage of an inner support tube for shunting is overcome; moreover, an established sub-channel is smooth on the surface, and can be kept smooth for a long time; and after the formation of a sub-channel between the portal vein branch and the hepatic vein, two magnets can be taken out through the catheter left in the operation, and the retention of foreign matters in vivo is prevented.
Description
Technical field
The present invention relates to medical equipment portacaval shunt device technique field, be specifically related to a kind of magnetic devices of setting up the shunting of liver interior door cavities of getting involved down.
Background technology
The device of getting involved portacaval shunt down at present mainly is through interior stay pipe device, between portal vein and postcava, sets up passage, inserts interior stay pipe, to realize portacaval shunt.But because its long-term efficacy is poor; Main cause is that the interior stay pipe that is used to shunt can take place narrow gradually; Even inaccessible, this is owing in the bracing frame due to the false neointimal hyperplasia, report that stenosis rate 1 year was 40.5%; Reached 50.8% in 2 years, these shortcomings have had a strong impact on the long-term efficacy of interior stay pipe device.
Summary of the invention
In order to overcome the deficiency that above-mentioned prior art exists; The object of the present invention is to provide a kind of magnetic devices of setting up the shunting of liver interior door cavities of getting involved down; The sub-runner smooth surface of its foundation, sub-runner keeps clear for a long time, and after the sub-runner between branch of portal vein and the hepatic vein forms; Can two magnets be taken out through the conduit of keeping somewhere in the art, can not be detained foreign body in vivo.
In order to achieve the above object, the technical scheme that the present invention adopted is:
A kind of magnetic devices of setting up the shunting of liver interior door cavities of getting involved down; Comprise a pair of permanent magnet group, the permanent magnet group is made up of first permanent magnet 1 and second permanent magnet 2, and first permanent magnet 1 is inhaled with second permanent magnet, 2 end ends mutually; First permanent magnet 1 is provided with the conduit 3 that matches with it; One end of conduit 3 passes the medium pore of first permanent magnet 1 and fixes, and second permanent magnet 2 is provided with medium pore, and the diameter in this hole is greater than the external diameter of conduit 3.
Described first permanent magnet 1 is along the foraminous cylinder of major axis central authorities.
Described second permanent magnet 2 is along the foraminous cylinder of major axis central authorities.
Advantage of the present invention is: accomplish branch of portal vein to hepatic venous shunting through utilizing two corresponding block permanent magnets of size and shape; It is narrow to have avoided adopting the interior stay pipe of shunting to take place gradually like this, even inaccessible shortcoming, the sub-runner smooth surface of its foundation in addition; Sub-runner can keep clear for a long time; And after the sub-runner between branch of portal vein and the hepatic vein forms, can two magnets be taken out through the conduit of keeping somewhere in the art, can not be detained foreign body in vivo.
Description of drawings
Fig. 1 is the structural representation of first permanent magnet of the present invention.
Fig. 2 is the structural representation of second permanent magnet of the present invention.
Fig. 3 is a branch of portal vein regulating liver-QI venous structural representation before the art.
Fig. 4 is the view that first permanent magnet of the present invention and conduit are presented to branch of portal vein.
Fig. 5 is that second permanent magnet of the present invention is presented to hepatic venous view.
Fig. 6 is the view of first permanent magnet of the present invention and the second permanent magnet adhesive.
Fig. 7 is first permanent magnet of the present invention and conduit and the former road of second permanent magnet view when extracting.
Fig. 8 is after extract on first permanent magnet of the present invention and conduit and the former road of second permanent magnet, the view that liver interior door cavities sub-runner forms.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done more detailed explanation.
A kind of magnetic devices of setting up the shunting of liver interior door cavities of getting involved down comprises a pair of permanent magnet group, and the permanent magnet group is made up of first permanent magnet 1 and second permanent magnet 2; First permanent magnet 1 is inhaled with second permanent magnet, 2 end ends mutually; As shown in Figure 1, first permanent magnet 1 is provided with the conduit 3 that matches with it, and an end of conduit 3 passes the medium pore of first permanent magnet 1 and fixes; As shown in Figure 2; Second permanent magnet 2 is provided with medium pore, and the diameter in this hole is greater than the external diameter of conduit 3, and conduit 3 can be enclosed within the interior and slip of medium pore of second permanent magnet 2.
Described first permanent magnet 1 is along the foraminous cylinder of major axis central authorities.
Described second permanent magnet 2 is along the foraminous cylinder of major axis central authorities.
Operation principle of the present invention is:
As shown in Figure 3, branch of portal vein 5 and hepatic vein 4 before the art.
Earlier first permanent magnet 1 is presented to branch of portal vein 5 preparatory anastomotic positions through conduit 3, as shown in Figure 4; Then second permanent magnet 2 is inserted in conduit 3, and delivers to hepatic vein 4 and desire anastomotic position, as shown in Figure 5; First permanent magnet 1 is inhaled with second permanent magnet, 2 end ends mutually, and is as shown in Figure 6; Inlying catheter 3 is set up until liver interior door cavities sub-runner 6, and conduit 3 is together with attracting together first permanent magnet 1 and second permanent magnet 2 to extract along former road, as shown in Figure 7; This moment, the 6 i.e. foundation of liver interior door cavities sub-runner were as shown in Figure 8.
Utilize two corresponding permanent magnets of size and shape to accomplish branch of portal vein to hepatic venous shunting; It is narrow to have avoided adopting the interior stay pipe of shunting to take place gradually like this, even inaccessible shortcoming, the sub-runner smooth surface of its foundation in addition; Sub-runner can keep clear for a long time; And after the sub-runner between branch of portal vein and the hepatic vein forms, can two magnets be taken out through the conduit of keeping somewhere in the art, can not be detained foreign body in vivo.In addition, second permanent magnet 2 is along the foraminous cylinder of major axis central authorities, and the somewhat larger in diameter in this hole is in the external diameter of conduit 3, can slide smoothly after second permanent magnet 2 is enclosed within on the conduit 3 guaranteeing.
Claims (3)
1. set up the magnetic devices that the liver interior door cavities is shunted under an intervention; Comprise a pair of permanent magnet group; It is characterized in that: the permanent magnet group is made up of first permanent magnet (1) and second permanent magnet (2); First permanent magnet (1) is inhaled with second permanent magnet (2) end end mutually, and first permanent magnet (1) is provided with the conduit (3) that matches with it, and an end of conduit (3) passes the medium pore of first permanent magnet (1) and fixes; Second permanent magnet (2) is provided with medium pore, and the diameter in this hole is greater than the external diameter of conduit (3).
2. a kind of magnetic devices of setting up the shunting of liver interior door cavities of getting involved down according to claim 1 is characterized in that: described first permanent magnet (1) is along the foraminous cylinder of major axis central authorities.
3. a kind of magnetic devices of setting up the shunting of liver interior door cavities of getting involved down according to claim 1 is characterized in that: described second permanent magnet (2) is along the foraminous cylinder of major axis central authorities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102904478A CN102835978A (en) | 2012-08-15 | 2012-08-15 | Magnetic device for establishing intrahepatic portacaval shunt under intervention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102904478A CN102835978A (en) | 2012-08-15 | 2012-08-15 | Magnetic device for establishing intrahepatic portacaval shunt under intervention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102835978A true CN102835978A (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102904478A Pending CN102835978A (en) | 2012-08-15 | 2012-08-15 | Magnetic device for establishing intrahepatic portacaval shunt under intervention |
Country Status (1)
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| CN (1) | CN102835978A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108159548A (en) * | 2017-12-26 | 2018-06-15 | 中国人民解放军总医院 | It is recyclable through jugular vein Door deformation thrombolysis catheter |
| CN109464228A (en) * | 2017-09-06 | 2019-03-15 | 首都医科大学附属北京佑安医院 | Door vena hepatica shunts self-expanding stent and implanted device |
| WO2021129937A1 (en) * | 2019-12-24 | 2021-07-01 | Angiomed Gmbh & Co. Medizintechnik Kg | Puncture device to be used in creating a tips shunt |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748660A (en) * | 2005-08-24 | 2006-03-22 | 褚建国 | Pre-stressed rack of intrahepatic portacaval shunt |
| CN1792336A (en) * | 2005-12-23 | 2006-06-28 | 西安交通大学 | Stent used for cholangiojejunostomy |
| WO2009102007A1 (en) * | 2008-02-14 | 2009-08-20 | Otsuka Pharmaceutical Factory, Inc. | Intestinal graft for portacaval shunt and application of the same |
-
2012
- 2012-08-15 CN CN2012102904478A patent/CN102835978A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748660A (en) * | 2005-08-24 | 2006-03-22 | 褚建国 | Pre-stressed rack of intrahepatic portacaval shunt |
| CN1792336A (en) * | 2005-12-23 | 2006-06-28 | 西安交通大学 | Stent used for cholangiojejunostomy |
| WO2009102007A1 (en) * | 2008-02-14 | 2009-08-20 | Otsuka Pharmaceutical Factory, Inc. | Intestinal graft for portacaval shunt and application of the same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464228A (en) * | 2017-09-06 | 2019-03-15 | 首都医科大学附属北京佑安医院 | Door vena hepatica shunts self-expanding stent and implanted device |
| CN108159548A (en) * | 2017-12-26 | 2018-06-15 | 中国人民解放军总医院 | It is recyclable through jugular vein Door deformation thrombolysis catheter |
| CN108159548B (en) * | 2017-12-26 | 2024-04-02 | 中国人民解放军总医院 | Recoverable transjugular vein portal body shunt thrombolysis catheter |
| WO2021129937A1 (en) * | 2019-12-24 | 2021-07-01 | Angiomed Gmbh & Co. Medizintechnik Kg | Puncture device to be used in creating a tips shunt |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121226 |