CN115300696A - Left atrium pigtail-shaped catheter with head end protection function for ECMO - Google Patents
Left atrium pigtail-shaped catheter with head end protection function for ECMO Download PDFInfo
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- CN115300696A CN115300696A CN202211039581.0A CN202211039581A CN115300696A CN 115300696 A CN115300696 A CN 115300696A CN 202211039581 A CN202211039581 A CN 202211039581A CN 115300696 A CN115300696 A CN 115300696A
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- China
- Prior art keywords
- catheter
- pigtail
- ecmo
- dilator
- protection function
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- 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.)
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Links
- 238000002618 extracorporeal membrane oxygenation Methods 0.000 title claims abstract description 20
- 210000005246 left atrium Anatomy 0.000 title claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 10
- 230000001746 atrial effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 206010058039 Cardiac perforation Diseases 0.000 abstract description 3
- 206010037423 Pulmonary oedema Diseases 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 208000005333 pulmonary edema Diseases 0.000 abstract description 3
- 208000006029 Cardiomegaly Diseases 0.000 abstract description 2
- 230000030833 cell death Effects 0.000 abstract 1
- 210000002889 endothelial cell Anatomy 0.000 abstract 1
- 239000008280 blood Substances 0.000 description 13
- 210000004369 blood Anatomy 0.000 description 13
- 230000002861 ventricular Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 210000002837 heart atrium Anatomy 0.000 description 5
- 210000004971 interatrial septum Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 208000007536 Thrombosis Diseases 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 210000005003 heart tissue Anatomy 0.000 description 2
- 230000000451 tissue damage Effects 0.000 description 2
- 231100000827 tissue damage Toxicity 0.000 description 2
- 206010009192 Circulatory collapse Diseases 0.000 description 1
- 206010013012 Dilatation ventricular Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 238000011374 additional therapy Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 210000003157 atrial septum Anatomy 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 206010007625 cardiogenic shock Diseases 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000036723 left ventricular dilatation Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 210000005245 right atrium Anatomy 0.000 description 1
- 206010040560 shock Diseases 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to the technical field of medical instruments, in particular to a left atrium pigtail-shaped catheter with a head end protection function for ECMO (endothelial cell death), which comprises a catheter, wherein an expander is arranged in the catheter in a penetrating manner, a guide wire is arranged in the expander in a penetrating manner, a flow guide part is arranged at the position, close to the heart end, of the catheter, and a supporting part is embedded in the side wall of the catheter. The invention can achieve the aims of effectively preventing complications such as left cardiac dilatation, pulmonary edema and the like and reducing the occurrence of accidents such as atrial perforation and the like.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a left atrium pigtail-shaped catheter with a head end protection function for ECMO.
Background
In vitro membrane oxygenation (ECMO) is mainly used for supporting cardiac insufficiency and/or respiratory insufficiency clinically, and is a key technology for saving the life of a patient and prolonging the life time. ECMO works by draining venous blood from the patient, then oxygenating and carbon dioxide removing the blood through the device, and then pumping the blood once again back into the patient after the gas exchange has been completed. According to different working modes, the modes are divided into Sup>A V-A ECMO mode of vein leading-artery backflow and Sup>A V-V ECMO mode of vein leading-out and vein inputting, the V-A mode is often used for cardiopulmonary support when circulatory failure such as cardiogenic shock is clinically treated, venous blood is drained through right atrium or upper and lower venSup>A cavSup>A to reduce right ventricular preload, but blood flow reversely perfused from central or peripheral arteries can increase left ventricular afterload, so that left ventricular ejection resistance is increased, left ventricular expansion and left atrial pressure are increased, thrombosis and pulmonary edemSup>A of Sup>A left heart system are easily caused, and recovery of left heart function is influenced. To address these complications, ECMO in combination with additional therapies such as IABP, interatrial septum fistulation, impella, etc. can alleviate left ventricular pressure elevation, but with the attendant complication of secondary left ventricular decompression procedures, and increased difficulty and cost of treatment. There is therefore a need for a left atrial pigtail catheter for ECMO with tip protection.
Disclosure of Invention
The invention aims to provide a left atrium pigtail catheter for ECMO with a head end protection function, which aims to solve the problems and achieve the purposes of effectively preventing complications such as left cardiac dilatation and pulmonary edema and reducing accidents such as atrial perforation.
In order to achieve the purpose, the invention provides the following scheme: the utility model provides a left atrium pigtail shape pipe for ECMO with head end protect function, includes the pipe, wear to be equipped with the expander in the pipe, wear to be equipped with the seal wire in the expander, the nearly heart end of pipe is equipped with water conservancy diversion portion, the pipe lateral wall inlays and is equipped with the supporting part.
Preferably, the catheter is a flexible tube, and the proximal end of the catheter is of a pigtail structure.
Preferably, the flow guide part comprises a plurality of flow guide holes formed in the proximal end of the conduit, and the flow guide holes penetrate through the side wall of the conduit.
Preferably, the supporting part comprises a metal wire, the metal wire is of a spiral structure, and the metal wire is embedded in the side wall of the catheter.
Preferably, the dilator is made of a hard material, the dilator is hollow, and the proximal end of the dilator exceeds the proximal end of the catheter.
Preferably, the spreading length of the pigtail structure is 5-15 cm.
Preferably, the guide wire is made of stainless steel.
The invention has the following technical effects: the dilator is penetrated into the catheter, the guide wire is penetrated into the dilator, the three simultaneously enter human tissues, the venous blood is directly led out after the vena cava of the heart of a patient enters into the atrium after penetrating through the interatrial septum, and the structure of the left heart system has the effects of relieving the pressure of the left heart system, reducing the expansion of the ventricle, reducing the tissue damage such as the perforation of the atrium and the like, and preventing the complications such as thrombosis and the like caused by blood stasis, has simple and convenient operation and good blood drainage effect, and is suitable for clinical application. The invention can realize the pressure release of the left heart, prevent the complications of left heart expansion, left ventricular dilatation, pulmonary edema and the like, has high safety coefficient and avoids atrial perforation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic proximal end configuration of the catheter and dilator of the present invention;
FIG. 4 is a schematic structural view of embodiment 2 of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at B in accordance with the present invention;
wherein, 1, guide wire; 2. a conduit; 3. a metal wire; 4. a flow guide hole; 5. a dilator; 6. a clip sheet; 7. a clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
Referring to fig. 1 to 3, the present embodiment provides a left atrial pigtail catheter for ECMO with a head end protection function, which includes a catheter 2, an expander 5 is inserted into the catheter 2, a guide wire 1 is inserted into the expander 5, a flow guiding portion is disposed near a heart end of the catheter 2, and a supporting portion is embedded in a side wall of the catheter 2.
Penetrate inside pipe 2 with expander 5, penetrate inside expander 5 with guide wire 1 again, the three gets into human tissue simultaneously, get into from patient's heart vena cava and pass the interatrial septum and enter into the atrium, directly draw venous blood, expander 5 is used for increasing the holding power, do benefit to pipe 2 and insert patient internal, the structure of this application has the effect that alleviates left heart system pressure, reduce the ventricular inflation, reduce tissue damage such as atrium perforation, and prevent complications such as thrombosis that the stasis of blood flow causes, and is easy and simple to handle, and blood drainage effect is good, is suitable for clinical application.
Further optimizing the scheme, pipe 2 is the flexible tube, and pipe 2 proximal heart end is pigtail type structure. The catheter 2 can be made of polyurethane materials, the proximal end of the catheter 2 is of a pigtail structure when in an unstressed state and has elasticity, the proximal end of the catheter 2 can be straightened, the dilator 5 and the guide wire 1 are pumped after the device integrally enters the heart of a patient, the catheter 2 is not supported by the dilator 5 any more, the proximal end of the catheter 2 is restored to the pigtail structure again, and the proximal end of the catheter 2 is prevented from puncturing heart tissues.
In a further optimized scheme, the flow guide part comprises a plurality of flow guide holes 4 arranged at the proximal end of the conduit 2, and the flow guide holes 4 penetrate through the side wall of the conduit 2. Blood in the heart enters the catheter 2 through the flow guide hole 4 and the opening at the proximal end of the catheter 2, and the flow guide hole 4 plays a role in accelerating blood drainage.
In a further optimized scheme, the supporting part comprises a metal wire 3, the metal wire 3 is of a spiral structure, and the metal wire 3 is embedded in the side wall of the conduit 2. The wire 3 may support the catheter 2 and prevent the catheter 2 from collapsing.
Further optimize the scheme, expander 5 is hard material, and expander 5 is inside cavity, and expander 5 is close to the heart end and surpasss catheter 2 and close to the heart end setting. The proximal end of the dilator 5 is a sharpening structure, so as to be convenient for puncturing the atrial septum.
Further optimizing the scheme, the unfolding length of the pigtail-shaped structure is 5-15 cm.
Further optimize the scheme, seal wire 1 is stainless steel.
The working process of the embodiment is as follows: the dilator 5 is penetrated into the catheter 2, the guide wire 1 is penetrated into the dilator 5, the dilator and the guide wire 1 enter human tissues at the same time, the blood enters from the cardiac vena cava of a patient, the dilator 5 is placed into the tip to penetrate through the interatrial septum to enter into an atrium, the dilator 5 and the guide wire 1 are drawn out, the catheter 2 is not supported by the dilator 5 any more, the proximal end of the catheter 2 is restored to a pigtail-shaped structure again, the proximal end of the catheter 2 is prevented from puncturing the cardiac tissues, and venous blood is directly led out through the guide hole 4 and the opening of the proximal end of the catheter 2.
Example 2
Referring to fig. 4-5, the present embodiment is different from embodiment 1 only in that a plurality of clamping pieces 6 are fixedly connected to the outer wall of the expander 5, a plurality of clamping grooves 7 are formed in the inner wall of the conduit 2, the shapes of the clamping pieces 6 and the clamping grooves 7 are matched, the clamping pieces 6 and the clamping grooves 7 are obliquely arranged, and the clamping pieces 6 face the proximal end of the expander 5. Dilator 5 carries catheter 2 and inserts human in-process both and have the risk of dislocation each other, lead to dilator 5 to surpass 2 tip distances of catheter overlength, be difficult to control the distance that catheter 2 got into the heart cavity, insert in joint groove 7 through the joint piece 6 of this implementation, prevent that dilator 5 from carrying catheter 2 and getting into human in-process both and producing the relative slip, when taking out dilator 5 from catheter 2 simultaneously, catheter 2 can not restrict dilator 5's removal.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (7)
1. The utility model provides a left atrium pigtail shape pipe for ECMO with head end protect function which characterized in that: including pipe (2), wear to be equipped with expander (5) in pipe (2), wear to be equipped with seal wire (1) in expander (5), pipe (2) are close to the heart end and are equipped with water conservancy diversion portion, pipe (2) lateral wall inlays and is equipped with the supporting part.
2. The left atrial pigtail catheter for ECMO having a tip protection function as claimed in claim 1, wherein: the catheter (2) is a flexible tube, and the proximal end of the catheter (2) is of a pigtail-shaped structure.
3. The left atrial pigtail catheter for ECMO having a tip protection function as claimed in claim 1, wherein: the flow guide part comprises a plurality of flow guide holes (4) formed in the heart-proximal end of the conduit (2), and the flow guide holes (4) penetrate through the side wall of the conduit (2).
4. The left atrial pigtail catheter for ECMO with tip protection as claimed in claim 1, wherein: the supporting part comprises a metal wire (3), the metal wire (3) is of a spiral structure, and the metal wire (3) is embedded in the side wall of the catheter (2).
5. The left atrial pigtail catheter for ECMO having a tip protection function as claimed in claim 1, wherein: the dilator (5) is made of hard materials, the dilator (5) is hollow, and the proximal end of the dilator (5) exceeds the proximal end of the catheter (2).
6. The left atrial pigtail catheter for ECMO having a tip protection function as claimed in claim 2, wherein: the spreading length of the pigtail-shaped structure is 5-15 cm.
7. The left atrial pigtail catheter for ECMO with tip protection as claimed in claim 1, wherein: the guide wire (1) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211039581.0A CN115300696A (en) | 2022-08-29 | 2022-08-29 | Left atrium pigtail-shaped catheter with head end protection function for ECMO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211039581.0A CN115300696A (en) | 2022-08-29 | 2022-08-29 | Left atrium pigtail-shaped catheter with head end protection function for ECMO |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115300696A true CN115300696A (en) | 2022-11-08 |
Family
ID=83865134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211039581.0A Pending CN115300696A (en) | 2022-08-29 | 2022-08-29 | Left atrium pigtail-shaped catheter with head end protection function for ECMO |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115300696A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203620049U (en) * | 2013-12-23 | 2014-06-04 | 牟延光 | Pericardium puncture drainage device |
| CN207627744U (en) * | 2017-04-19 | 2018-07-20 | 崔文华 | A kind of medical instrument flow sub of high leakproofness |
| CN208927199U (en) * | 2018-07-17 | 2019-06-04 | 广东省中医院 | A kind of thoracocentesis abdominocentesis drain tube assembly |
| CN209437761U (en) * | 2018-08-17 | 2019-09-27 | 中国医学科学院北京协和医院 | A kind of puncture built-in type peritoneum dialysis catheter |
| CN215194831U (en) * | 2020-10-21 | 2021-12-17 | 杭州市第七人民医院 | Ileus fixing device and ileus catheter assembly |
| CN216877362U (en) * | 2021-10-26 | 2022-07-05 | 复旦大学附属中山医院 | Left heart drainage tube |
-
2022
- 2022-08-29 CN CN202211039581.0A patent/CN115300696A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203620049U (en) * | 2013-12-23 | 2014-06-04 | 牟延光 | Pericardium puncture drainage device |
| CN207627744U (en) * | 2017-04-19 | 2018-07-20 | 崔文华 | A kind of medical instrument flow sub of high leakproofness |
| CN208927199U (en) * | 2018-07-17 | 2019-06-04 | 广东省中医院 | A kind of thoracocentesis abdominocentesis drain tube assembly |
| CN209437761U (en) * | 2018-08-17 | 2019-09-27 | 中国医学科学院北京协和医院 | A kind of puncture built-in type peritoneum dialysis catheter |
| CN215194831U (en) * | 2020-10-21 | 2021-12-17 | 杭州市第七人民医院 | Ileus fixing device and ileus catheter assembly |
| CN216877362U (en) * | 2021-10-26 | 2022-07-05 | 复旦大学附属中山医院 | Left heart drainage tube |
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