CN213374636U - Balloon catheter for gastric and renal shunt embolism - Google Patents
Balloon catheter for gastric and renal shunt embolism Download PDFInfo
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- CN213374636U CN213374636U CN202020891285.3U CN202020891285U CN213374636U CN 213374636 U CN213374636 U CN 213374636U CN 202020891285 U CN202020891285 U CN 202020891285U CN 213374636 U CN213374636 U CN 213374636U
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Abstract
The utility model relates to a sacculus pipe field specifically relates to a sacculus pipe that is used for stomach kidney subchannel embolism. The balloon catheter comprises an outer catheter and an inner catheter positioned inside the outer catheter, wherein the outer catheter comprises a catheter main body and a balloon communicated with the catheter main body, and the tail end of the inner catheter is positioned outside the balloon. The balloon catheter sequentially comprises a first straight pipe section, a first arc section, a second straight pipe section, a second arc section and a third straight pipe section from the head end to the tail end, wherein a central angle corresponding to the second arc section is an obtuse angle, and the opening orientation of the first arc section is opposite to that of the second arc section. The utility model discloses a sacculus pipe comprises the pipeline section of three linear type and two circular arc sections, and the shape that its shape that constitutes is identical with the shape that human inferior vena cava, renal vein, stomach kidney subchannel constitute, makes things convenient for the doctor with the leading-in to stomach kidney subchannel in to reduce the operation degree of difficulty.
Description
Technical Field
The utility model relates to a sacculus pipe field specifically relates to a sacculus pipe that is used for stomach kidney subchannel embolism.
Background
A balloon catheter blocked retrograde gastric and renal bypass embolization (BRTO) is an interventional operation for preventing or treating hepatic encephalopathy caused by rupture bleeding and bypass of gastric varices. When a doctor carries out the gastric-renal shunt embolization operation, the balloon catheter is sequentially sent into the gastric-renal shunt through the inferior vena cava and the renal veins, and then the embolization agent is injected into the gastric varicose blood vessel through the balloon catheter so as to achieve the purposes of occluding the varicose blood vessel and blocking the gastric-renal shunt.
The existing catheter for treating the embolism of the gastric-renal shunt is a straight tube, the shape of the straight tube is not matched with the shape formed by the inferior vena cava, the renal vein and the gastric-renal shunt of a human body, and the operation difficulty is increased.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a sacculus pipe for stomach kidney subchannel embolism, this sacculus pipe is identical with the shape that inferior vena cava, renal vein, stomach kidney subchannel constitute, makes things convenient for the doctor to insert the position department that is blockked up in stomach kidney subchannel with the pipe, has reduced the operation degree of difficulty.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a balloon catheter for gastric and renal bypass embolization comprises an outer catheter and an inner catheter positioned inside the outer catheter, wherein the outer catheter comprises a catheter main body and a balloon communicated with the catheter main body, and the tail end of the inner catheter is positioned outside the balloon;
the balloon catheter sequentially comprises a first straight pipe section, a first arc section, a second straight pipe section, a second arc section and a third straight pipe section from the head end to the tail end, wherein the third straight pipe section extends to the outer side of the balloon, a central angle corresponding to the second arc section is an obtuse angle, and the opening direction of the first arc section is opposite to that of the second arc section.
Further, the length of the second straight pipe section is matched with the length of a renal vein between the inferior vena cava and the stomach and kidney shunt.
More preferably, the length of the third straight pipe section is 1.2cm to 1.5 cm.
Further, the balloon extends from the third straight pipe section to the second straight pipe section through the second circular arc section.
More preferably, the length of the balloon is 3.1cm to 3.3 cm.
Further, the central angle corresponding to the first arc segment is an obtuse angle.
Further, the balloon catheter also comprises a first joint communicated with the inner catheter, and the first joint is positioned at one end, far away from the first arc section, of the first straight pipe section.
Further preferably, protrusions are arranged on two sides of the first joint.
Further, the balloon catheter also comprises a second connector communicated with the outer catheter, and the second connector is positioned at the first straight pipe section.
The utility model has the advantages as follows:
(1) will the utility model discloses a tail end of sacculus pipe at first enters into the atrium through the inferior vena cava, resumes the external shape of sacculus pipe in the atrium. Then the saccule conduit is pulled down, so that the tail end of the saccule conduit enters the gastric-renal shunt channel through the inferior vena cava and the renal veins in sequence until the saccule at the tail end is positioned in the outlet of the gastric-renal shunt channel, and then gas or liquid is introduced into the saccule to swell the saccule so as to block the outlet of the gastric-renal shunt channel. And then, injecting an embolic agent into the gastric-renal shunt through the inner catheter so as to treat a bleeding position in the renal shunt. The ballooning saccule blocks the outlet of the gastric-renal shunt, so that the embolus in the gastric-renal shunt can be prevented from entering the blood circulation system of a human body through the renal vein to cause pulmonary embolism.
The utility model discloses a sacculus pipe comprises the pipeline section of three linear type and two circular arc sections, and the shape that its shape that constitutes is identical with the shape that human inferior vena cava, renal vein, stomach kidney subchannel constitute, makes things convenient for the doctor with the leading-in to stomach kidney subchannel in to reduce the operation degree of difficulty.
In addition, the utility model discloses a sacculus pipe, once only operate just can be with the leading-in to stomach kidney subchannel in to this reduces operation time, and can prevent to lead to the rupture of inferior vena cava, renal vein and stomach kidney subchannel because of the repeated operation.
(2) The distance between the two circular arc sections, namely the length of the second straight pipe section, is matched with the length from the renal vein of the human body between the inferior vena cava and the gastric-renal shunt, so that a doctor can conveniently guide the balloon catheter into the gastric-renal shunt.
(3) The balloon extends to the second straight pipe section from the third straight pipe section through the second circular arc section, so that the length of the balloon is matched with that of the outlet of the gastric-renal shunt, the outlet of the gastric-renal shunt can be better blocked, and the injected embolic agent is prevented from entering a blood circulation system of a human body.
Drawings
Fig. 1 is a structural view of a balloon catheter of the present invention;
fig. 2 is a diagram showing a state of use of the balloon catheter of the present invention.
The notations in the figures have the following meanings:
1-inner catheter 11-first joint 2-outer catheter 21-catheter main body 22-balloon 23-second joint
31-inferior vena cava 32-renal vein 33-stomach and kidney shunt 34-atrium L1-first straight tube segment
L2-first arc section L3-second straight tube section L4-second arc section L5-third straight tube section
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the following embodiments and the accompanying drawings. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A balloon catheter for gastric and renal shunt embolization is sequentially provided with a first straight pipe section L1, a first circular arc section L2, a second straight pipe section L3, a second circular arc section L4 and a third straight pipe section L5 from the head end to the tail end, wherein central angles corresponding to the first circular arc section L2 and the second circular arc section L4 are obtuse angles, and the opening direction of the first circular arc section L2 is opposite to that of the second circular arc section L4, as shown in fig. 1. In this embodiment, the central angle corresponding to the first circular arc segment L2 may also be an acute angle, and when the central angle corresponding to the first circular arc segment L2 is an obtuse angle, the balloon catheter is more conveniently inserted.
As shown in fig. 1, the balloon catheter includes an outer catheter 2, an inner catheter 1 positioned inside the outer catheter 2, a first connector 11 communicating with the inner catheter 1, and a second connector 23 positioned at a head end of the outer catheter 2 and communicating with the outer catheter 2. The outer catheter 2 comprises a catheter main body 21 and a balloon 22 which is positioned at the tail end of the catheter main body 21 and communicated with the catheter main body 21. In this embodiment, the outer catheter 2, the inner catheter 1 and the balloon 22 are all deformable and resilient. When the air inlet of the second joint 23 is blocked, the balloon 22, the catheter main body 21 and the second joint 23 form a closed space.
In this embodiment, the trailing end of the inner catheter 1 is located outside the balloon 22. The length of the second straight pipe section L3 is matched with the length of the renal vein 32 of the human body between the inferior vena cava 31 and the gastrorenal shunt 33.
The length of the third straight pipe section L5 is 1.2 cm-1.5 cm, and the length of the third straight pipe section L5 is 1.3cm in the embodiment.
The balloon 22 extends from the third straight tube section L5 to the second straight tube section L3 through the second circular arc section L4, and in this embodiment, the length of the balloon 22 is 3.1cm to 3.3 cm.
The balloon catheter of the utility model can be independently processed, manufactured and sold without depending on specific operation.
The operation steps of the balloon catheter using the utility model are as follows:
s1, moving the balloon catheter upward in the inferior vena cava 31 in the arrow direction shown in fig. 2, and viewing the real-time position of the balloon catheter by the doctor through an image until the first arc section L2, the second straight tube section L3, the second arc section L4, and the third straight tube section L5 of the balloon catheter are all located in the atrium 34 communicating with the inferior vena cava 31, at this time, the shape formed by the first arc section L2, the second straight tube section L3, the second arc section L4, and the third straight tube section L5 is restored to the shape outside the body.
S2, pulling the balloon catheter downwards, removing the balloon catheter from the atrium 34, and keeping the tail end of the balloon catheter pointing to the direction of the renal vein 32 while pulling the balloon catheter downwards, wherein the opening of the first circular arc segment L2 faces downwards, and the opening of the second circular arc segment L4 faces upwards. When the tail end of the balloon catheter reaches the intersection of the inferior vena cava 31 and the renal vein 32, the second circular arc segment L4 compressed by the inferior vena cava 31 starts to restore the shape, so that the third straight tube segment L5 connected with the second circular arc segment L4 extends into the renal vein 32, namely, the tail end of the balloon catheter extends into the renal vein 32.
S3, the balloon catheter is pulled downwards, and the opening of the second circular arc segment L4 faces upwards, i.e. the opening of the second circular arc segment L4 faces the direction of the gastric-renal shunt 33. The balloon catheter is continuously pulled downwards, the opening of the first circular arc section L2 is enlarged, the third straight pipe section L5 connected with the first circular arc section L2 is enabled to continuously move towards the inside of the renal vein 32 until the third straight pipe section L5 reaches the position where the renal vein 32 is connected with the sub-gastric-renal runner 33, the second circular arc section L4 extruded by the renal vein 32 continuously restores the deformation on the basis of the restoration of the deformation in the step S2, the third straight pipe section L5 connected with the second circular arc section L4 is enabled to extend into the sub-gastric-renal runner 33, namely the balloon catheter reaches the target position, and the guiding operation of the balloon catheter is completed.
S4, inserting the injector into the air inlet of the second connector 23, injecting air into the balloon 22 until the balloon 22 is expanded and the outlet of the gastric-renal shunt 33 is blocked.
S5, another syringe is inserted into the liquid inlet of the first connector 11, and a sclerosing agent or an embolic agent is injected into the gastric-renal shunt 33 through the inner catheter 1 communicated with the first connector 11, so as to achieve the purpose of treatment.
Claims (9)
1. A balloon catheter for gastric and renal bypass embolization, the balloon catheter comprising an outer catheter (2) and an inner catheter (1) located inside the outer catheter (2), characterized in that: the outer catheter (2) comprises a catheter main body (21) and a balloon (22) communicated with the catheter main body (21);
this sacculus pipe is first straight tube section (L1), first circular arc section (L2), second straight tube section (L3), second circular arc section (L4) and third straight tube section (L5) from head end to tail end in proper order, third straight tube section (L5) extend to the outside of sacculus (22), the central angle that second circular arc section (L4) corresponds is the obtuse angle, the opening orientation of first circular arc section (L2) is opposite with the opening orientation of second circular arc section (L4).
2. The balloon catheter of claim 1, wherein: the length of the second straight pipe section (L3) is matched with the length of a renal vein (32) between the inferior vena cava (31) and the stomach-kidney shunt (33).
3. The balloon catheter of claim 1 or 2, wherein: the length of the third straight pipe section (L5) is 1.2 cm-1.5 cm.
4. The balloon catheter of claim 1 or 2, wherein: the balloon (22) extends from the third straight tube section (L5) to the second straight tube section (L3) through the second circular arc section (L4).
5. The balloon catheter of claim 4, wherein: the length of the saccule (22) is 3.1 cm-3.3 cm.
6. The balloon catheter of claim 1 or 2, wherein: the central angle corresponding to the first circular arc section (L2) is an obtuse angle.
7. The balloon catheter of claim 1 or 2, wherein: the balloon catheter also comprises a first connector (11) communicated with the inner catheter (1), and the first connector (11) is positioned at one end of the first straight pipe section (L1) far away from the first circular arc section (L2).
8. The balloon catheter of claim 7, wherein: bulges are arranged on two sides of the first joint (11).
9. The balloon catheter of claim 1 or 2, wherein: the balloon catheter also comprises a second connector (23) communicated with the outer catheter (2), and the second connector (23) is positioned on the first straight pipe section (L1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020891285.3U CN213374636U (en) | 2020-05-25 | 2020-05-25 | Balloon catheter for gastric and renal shunt embolism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020891285.3U CN213374636U (en) | 2020-05-25 | 2020-05-25 | Balloon catheter for gastric and renal shunt embolism |
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| Publication Number | Publication Date |
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| CN213374636U true CN213374636U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020891285.3U Active CN213374636U (en) | 2020-05-25 | 2020-05-25 | Balloon catheter for gastric and renal shunt embolism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559395A (en) * | 2021-07-27 | 2021-10-29 | 西藏自治区人民政府驻成都办事处医院 | Special balloon catheter for BRTO (vascular endothelial ablation and ablation) and use method |
-
2020
- 2020-05-25 CN CN202020891285.3U patent/CN213374636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559395A (en) * | 2021-07-27 | 2021-10-29 | 西藏自治区人民政府驻成都办事处医院 | Special balloon catheter for BRTO (vascular endothelial ablation and ablation) and use method |
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