CN213312759U - Hepatic vein conduction device - Google Patents
Hepatic vein conduction device Download PDFInfo
- Publication number
- CN213312759U CN213312759U CN202020531442.XU CN202020531442U CN213312759U CN 213312759 U CN213312759 U CN 213312759U CN 202020531442 U CN202020531442 U CN 202020531442U CN 213312759 U CN213312759 U CN 213312759U
- Authority
- CN
- China
- Prior art keywords
- steel needle
- hepatic vein
- catheter
- needle
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000002989 hepatic vein Anatomy 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000005452 bending Methods 0.000 claims description 8
- 210000003462 vein Anatomy 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 210000004185 liver Anatomy 0.000 abstract description 2
- 210000001631 vena cava inferior Anatomy 0.000 description 10
- 208000011580 syndromic disease Diseases 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000007257 Budd-Chiari syndrome Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002440 hepatic effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 208000007232 portal hypertension Diseases 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Images
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model belongs to the technical field of medical instrument, especially, hepatic vein switches on device. The utility model discloses a: the device comprises the following components which are matched with each other: a hollow conduit; the hollow steel needle is movably arranged in the catheter, and the needle head of the steel needle is flush with the outlet of the catheter; the guide wire is movably arranged in the steel needle in a penetrating mode, and the length of the guide wire is larger than that of the catheter. The utility model discloses the steel needle that is equipped with has certain hardness, can further fix a position the position of pipe, and the quick accurate liver vein that gets into through the steel needle of the seal wire of being convenient for is favorable to improving mediation efficiency.
Description
Technical Field
The utility model belongs to the field of medical equipment, especially, relate to a hepatic vein switches on device.
Background
Budd-Chiari syndrome (also called Pad-Guillii syndrome), Bo-ka syndrome and Buck-Ka syndrome are symptoms of partial or complete obstruction of hepatic vein or inferior vena cava of hepatic segment caused by various reasons, and extravasated portal hypertension or/and inferior vena cava hypertension syndrome caused by blood reflux disorder. The disease symptoms are mostly a mixed type that the inferior vena cava and the hepatic vein are blocked simultaneously, and secondly, the hepatic vein blocking type is adopted, while the single inferior vena cava blocking type is the least seen; intervention therapy is currently the first choice for treatment of bulgarian syndrome.
In the existing interventional therapy, no tool specially used for conducting the hepatic vein exists, and generally, a catheter is firstly inserted into the inferior vena cava and reaches the entrance of the hepatic vein, and then a guide wire is inserted into the catheter to conduct the hepatic vein. Because the hepatic vein is thin (see fig. 6), the catheter is soft, so the catheter is easy to deviate when being positioned at the hepatic vein inlet, the operation difficulty is high when the guide wire is inserted into the hepatic vein, and the injury to the patient is easy to cause.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a hepatic vein conduction device. The utility model has the advantages of fast positioning catheter and convenient hepatic vein conduction.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hepatic vein conduction device comprising the following components in cooperation with one another:
a hollow conduit;
the hollow steel needle is movably arranged in the catheter, and the needle head of the steel needle is flush with the outlet of the catheter;
the guide wire is movably arranged in the steel needle in a penetrating mode, and the length of the guide wire is larger than that of the catheter.
Preferably, one end of the steel needle close to the needle head is provided with a bent extension part.
Preferably, the bending angle α of the extension is 40 ° to 50 °.
Preferably, the length of the catheter is 40 cm.
Preferably, one end of the steel needle, which is far away from the needle head and extends out of the outer side of the catheter, is fixedly connected with the handle head, and the handle head is provided with a first channel for a guide wire to penetrate into the hollow steel needle.
Preferably, the handle head is provided with a rotation indicating part, and the rotation indicating part is matched with the bending direction of the extension part.
Preferably, the rotation indicating part is a protrusion corresponding to a bending direction of the extension part.
Preferably, the needle head of the steel needle is non-sharp.
Preferably, one end of the catheter far away from the needle head is fixedly connected with the tube head, and the tube head is provided with a second channel capable of accommodating the steel needle to pass through.
The utility model has the advantages that:
(1) the utility model discloses the steel needle that is equipped with has certain hardness, can further fix a position the position of pipe, and the quick accurate liver vein that gets into through the steel needle of the seal wire of being convenient for is favorable to improving mediation efficiency.
(2) Because hepatic vein pipe diameter is thinner, current dredging state through image being difficult to audio-visual judgement hepatic vein, the utility model discloses the steel needle that is equipped with is hollow form, can take out the seal wire after using the seal wire to dredge hepatic vein, again from drawing blood back to the head, and then can be direct judgement hepatic vein dredge successfully, has improved the convenience that the device used.
(3) The utility model discloses an extension is crooked form, with patient's vein looks adaptation, not only is convenient for the smooth entering vein of pipe, and has reduced the probability that pipe and vein touched, has reduced the harm of pipe to the vein inner wall.
(4) The utility model discloses an overhead rotation instruction portion that is equipped with judges the crooked direction of extension when the medical personnel of being convenient for operate, has further improved the convenience of device.
Drawings
Fig. 1 is a schematic view of the cross-sectional structure of the present invention.
Fig. 2 is an enlarged schematic view of the extension portion of the present invention.
Fig. 3 is a schematic view of the overall structure of the present invention.
Fig. 4 is a schematic view of the catheter structure of the present invention.
Fig. 5 is a schematic view of the structure of the steel needle of the present invention.
Fig. 6 is a schematic view of the inferior vena cava and hepatic vein structure.
The notations in the figures have the following meanings:
1-catheter, 2-steel needle, 21-extension part, 3-guide wire, 4-handle head, 41-first channel, 42-rotation indicating part, 5-tube head and 51-second channel.
Detailed Description
As shown in fig. 3-5, a hepatic vein conduction device comprises a hollow catheter 1, the catheter 1 being adapted to be inserted into the inferior vena cava of a patient and extending to the entrance of the hepatic vein; the hollow steel needle 2 is movably arranged in the catheter 1, and the needle head of the steel needle 2 is flush with the outlet of the catheter 1; a guide wire 3, guide wire 3 activity is worn to locate in steel needle 2, and the length of guide wire 3 is greater than the length of pipe 1, and guide wire 3 extends to the hepatic vein when using.
As shown in fig. 2, a curved extension part 21 is arranged at one end of the steel needle 2 close to the needle head, and the extension part 21 is matched with the intersection of the inferior vena cava and the hepatic vein of the human body, so that the steel needle 2 can be conveniently positioned; the bending angle alpha of the extension part 21 is 40-50 degrees, and the bending angle alpha is specifically the included angle between the extension part 21 and the axial direction of the steel needle 2 body; the length of the catheter 1 is 40cm, so that the catheter 1 can be conveniently inserted into the intersection of the inferior vena cava and the hepatic vein of a human body; the needle head of the steel needle 2 is non-sharp, so that the use safety of the steel needle 2 is ensured.
As shown in fig. 5, one end of the steel needle 2, which is far away from the needle head and extends out of the catheter 1, is fixedly connected with the handle head 4, the first channel 41 for the guide wire 3 to penetrate into the hollow steel needle 2 is arranged on the handle head 4, the guide wire 3 can penetrate through the steel needle 2 through the first channel 41, and the handle head 4 is convenient to suck blood back to judge whether the hepatic vein is successfully conducted or not in the later period; be equipped with rotation instruction portion 42 on head 4, rotation instruction portion 42 specifically can be the arch unanimous with the crooked direction of extension 21, and the crooked direction of extension 21 is judged when being convenient for medical personnel to operate, has further improved the convenience of device.
As shown in fig. 4, one end of the catheter 1 far from the needle head is fixedly connected with the tube head 5, and the tube head 5 is provided with a second channel 51 for accommodating the steel needle 2 to pass through.
The operation of the device is described in detail below with reference to the drawings in the examples.
When the device works, the catheter 1 is inserted into the inferior vena cava firstly, when the catheter 1 descends to the hepatic vein, the hepatic vein is thin, the outlet of the catheter 1 is bent after contacting with the inlet of the hepatic vein, the hollow steel needle 2 is inserted at the moment, the hollow steel needle 2 descends to the hepatic vein along the catheter 1, and the catheter 1 can be positioned at the inlet of the hepatic vein because the steel needle 2 has certain hardness; then the guide wire 3 is inserted through the hollow steel needle 2, and the subsequent dredging operation is started. And then the guide wire 3 can be drawn out, and blood can be drawn back from the handle head 4 to judge whether the conduction is successful.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (9)
1. A hepatic vein conduction device, comprising the following components in cooperation with each other:
a hollow conduit (1);
the needle head of the steel needle (2) is flush with the outlet pipe orifice of the catheter (1);
the guide wire (3) is movably arranged in the steel needle (2) in a penetrating mode, and the length of the guide wire (3) is larger than that of the catheter (1).
2. A hepatic vein conduction device according to claim 1, wherein: one end of the steel needle (2) close to the needle head is provided with a curved extension part (21).
3. A hepatic vein conduction device according to claim 2, wherein: the bending angle alpha of the extension part (21) is 40-50 degrees.
4. A hepatic vein conduction device according to claim 1, wherein: the length of the conduit (1) is 40 cm.
5. A hepatic vein conduction device according to claim 1, wherein: the needle head is kept away from the steel needle (2), one end of the steel needle (2) extending out of the outer side of the catheter (1) is fixedly connected with the handle head (4), and a first channel (41) for the guide wire (3) to penetrate into the hollow steel needle (2) is arranged on the handle head (4).
6. A hepatic vein conduction device according to claim 5, wherein: the handle head (4) is provided with a rotation indicating part (42), and the rotation indicating part (42) is matched with the bending direction of the extension part (21).
7. A hepatic vein conduction device according to claim 6, wherein: the rotation indicating part (42) is a projection corresponding to the bending direction of the extension part (21).
8. A hepatic vein conduction device according to claim 1, wherein: the needle head of the steel needle (2) is non-sharp.
9. A hepatic vein conduction device according to claim 1, wherein: one end of the catheter (1) far away from the needle head is fixedly connected with the tube head (5), and a second channel (51) capable of accommodating the steel needle (2) to pass through is arranged on the tube head (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020531442.XU CN213312759U (en) | 2020-04-10 | 2020-04-10 | Hepatic vein conduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020531442.XU CN213312759U (en) | 2020-04-10 | 2020-04-10 | Hepatic vein conduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213312759U true CN213312759U (en) | 2021-06-01 |
Family
ID=76058038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020531442.XU Active CN213312759U (en) | 2020-04-10 | 2020-04-10 | Hepatic vein conduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213312759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105726A (en) * | 2022-06-30 | 2022-09-27 | 恒壹（北京）医疗科技有限公司 | Guide wire auxiliary connecting device and using method |
-
2020
- 2020-04-10 CN CN202020531442.XU patent/CN213312759U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105726A (en) * | 2022-06-30 | 2022-09-27 | 恒壹（北京）医疗科技有限公司 | Guide wire auxiliary connecting device and using method |
| CN115105726B (en) * | 2022-06-30 | 2024-03-01 | 恒壹（北京）医疗科技有限公司 | Guide wire auxiliary connection device and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170251977A1 (en) | Coronary sinus inspiration catheter | |
| CN213312759U (en) | Hepatic vein conduction device | |
| CN213589471U (en) | Inferior vena cava switches on device | |
| CN212235496U (en) | Prevent acupuncture subassembly | |
| CN211798022U (en) | Closed needle-puncture-preventing remaining needle | |
| CN208756003U (en) | Disposable anti-needle pierces vein blood taking needle | |
| CN211068436U (en) | Novel multifunctional remaining needle | |
| CN211243618U (en) | Medical puncture trocar | |
| JP4462534B2 (en) | Liver tissue biopsy instrument | |
| CN218685484U (en) | Dialysis temporary catheter puncture probe | |
| CN213097853U (en) | Safety Y-shaped artery catheterization needle with guide wire | |
| CN211633399U (en) | Transparent operation sheath pipe | |
| CN213724100U (en) | Anti-overflow open type remaining needle | |
| CN106860965A (en) | Inner sleeve type artery and vein puncture remaining needle | |
| CN215738991U (en) | Disposable anti-reflux blood taking needle | |
| CN217245893U (en) | Infusion port fixing device that infusion port puncture was used | |
| CN110193116B (en) | Infusion needle | |
| CN216628667U (en) | Push type ovum taking needle | |
| CN213964646U (en) | Anti-acupuncture mechanism and safe indwelling needle | |
| CN210992271U (en) | Needle-prick prevention indwelling needle assembly | |
| CN204364613U (en) | A kind of novel cyst puncture and intubation external member | |
| CN210044092U (en) | Wound drainage tube set device | |
| CN215349318U (en) | Common bile duct radiography puncture needle with extension tube for laparoscope | |
| CN209316695U (en) | A kind of transfusion needle of stereotactic puncture | |
| CN210056175U (en) | Trocar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |