CN107050625B - Deep insertion-preventing reinforced supporting type guiding catheter - Google Patents
Deep insertion-preventing reinforced supporting type guiding catheter Download PDFInfo
- Publication number
- CN107050625B CN107050625B CN201710035265.9A CN201710035265A CN107050625B CN 107050625 B CN107050625 B CN 107050625B CN 201710035265 A CN201710035265 A CN 201710035265A CN 107050625 B CN107050625 B CN 107050625B
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- China
- Prior art keywords
- guide catheter
- wall
- support
- balloon
- liquid filling
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 23
- 210000005077 saccule Anatomy 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 6
- 239000002872 contrast media Substances 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- 208000029078 coronary artery disease Diseases 0.000 abstract description 3
- 210000004351 coronary vessel Anatomy 0.000 description 9
- 210000000709 aorta Anatomy 0.000 description 7
- 210000004204 blood vessel Anatomy 0.000 description 7
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 208000024248 Vascular System injury Diseases 0.000 description 1
- 208000012339 Vascular injury Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 231100000216 vascular lesion Toxicity 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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1093—Balloon catheters with special features or adapted for special applications having particular tip characteristics
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Abstract
The utility model provides a prevent dark enhancement support formula guide catheter that inserts, includes guide catheter body (1) tip portion is provided with collapsible and abundant support sacculus (2), and this support sacculus (2) are connected with liquid filling pipeline (3), and this liquid filling pipeline (3) are located guide catheter body (1) inner wall, or outer wall, or in guide catheter body (1) the pipe wall. The invention effectively improves the active and passive supporting force of the existing guide catheter, can better complete the intervention operation of the complex coronary heart disease, greatly reduces the operation risk, and reduces the medical cost and the operation time which are increased because the guide catheter is not suitable for replacing various guide catheters and guide wires with different shapes.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a deep insertion-preventing reinforced support type guide catheter applied to coronary intervention operation.
Background
Coronary heart disease incidence is higher and higher, complicated coronary artery lesions are more and more, the difficulty of coronary artery interventional operation is high, and the complicated lesions, especially the twisted vascular lesions and the chronic occlusion lesions, need to be strongly supported for guiding the catheter. A good guiding catheter must have good active and passive support capabilities, where active support capability refers to the ability of the catheter to deliver forward to the coronary vessel, often without undue resistance due to concerns about deep insertion of the catheter into the coronary vessel; the passive support capacity is proportional to the diameter of the guiding catheter, the contact area between the catheter and the aorta, the friction between the catheter and the wall of the aorta and the included angle between the catheter and the aorta. All guide catheters on the market at present rely on changing the shape of the tip of the catheter to increase the support, but the root structure of the aorta, the coronary artery opening, the size and the like of each patient are different, and the problem that the tip of the guide catheter is backwards shifted or even separated from the vascular opening during complex coronary intervention operation cannot be avoided, so that the guide catheter is deeply inserted into the coronary artery in order to increase the support, and the vascular injury causes vascular tearing, thereby causing acute adverse events and even death.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the deep insertion-preventing reinforced support type guide catheter which has the advantages of simple structure, convenient operation, effective enhancement of the support force of the guide catheter, avoidance of damage to blood vessels due to deep insertion of the guide catheter, safety and reliability, and the specific technical scheme is as follows:
the utility model provides a prevent dark enhancement support formula guide catheter that inserts, includes guide catheter body (1), guide catheter body (1) tip portion is provided with collapsible and abundant support sacculus (2), and this support sacculus (2) are connected with liquid filling pipeline (3), and this liquid filling pipeline (3) are located the inner wall of guide catheter body (1), perhaps outer wall, perhaps in the pipe wall of guide catheter body (1).
The application method of the invention comprises the following steps: the guide catheter body is guided by the conventional radiography guide wire to be sent to the root of the aorta, if the resistance exists in the sending process, the direction can be rotationally adjusted to advance, the tip of the guide catheter is adjusted to an ideal position under X-ray perspective, physiological saline or contrast agent enters the support balloon (2) through the liquid filling pipeline (3) to fill the support balloon, the support balloon (2) is used as a supporting point of the guide catheter body, deep insertion can be effectively prevented, the contact area between the catheter and the aorta can be increased while the deep insertion of the catheter is prevented, the included angle between the aorta and the guide catheter is increased, so that the complex coronary intervention operation is enhanced and supported, after the intervention is finished, all intervention instruments are withdrawn, the negative pressure of the support balloon (2) is pumped to the limit, and the intervention operation is slowly withdrawn from the body.
To better implement the present invention, it may further be:
the support saccule (2) is positioned on the side wall of the guide catheter tube (1), the support saccule (2) is in right-angle transition with the side wall of the guide catheter tube (1) after filling, so that the support saccule (2) cannot slide into a blood vessel along with the guide catheter, the occurrence of tearing of the blood vessel is avoided, and the top of the support saccule (2) is in arc transition, so that smoothness in the penetrating process of the guide catheter is ensured.
The height D of the support balloon (2) after filling is 6-9mm, and the length C is 10mm. The diameter of the support balloon (2) after filling is half of the diameter of the guide catheter, and the larger the diameter of the balloon is, the stronger the support is, but the blood flow of the blood vessel cavity is blocked; the balloon height after filling and the diameter of the catheter are larger than one time of the diameter of the coronary artery, the diameter of the opening of the coronary artery is 4-6mm at present, the diameter of the guiding catheter is 0.33mm by 5-8, therefore, the balloon height after filling is 6-9mm, the length of the balloon after filling is 10mm, and the supporting force is stronger when the length is longer.
The support balloon (2) is provided with a through hole along the axial direction of the guide catheter body (1), and the through hole reduces the blocking of the support balloon (2) to blood.
The side wall of the tip part of the guiding catheter body (1) is provided with meshes (4) which can increase the forward blood flow of coronary artery.
The support saccule (2) is in a circular ring shape, the outer wall of the inner ring of the support saccule (2) is connected with the outer wall of the guide catheter body (1), and the support saccule adopts a circular ring-shaped structure, so that the stress of a support point is more uniform, and meanwhile, the pressure to a heart coronary chamber can be reduced, so that the support saccule is safer and more reliable.
The guide catheter body (1) is composed of an inner pipe (11) and an outer pipe (12), and a cavity formed by the outer wall of the inner pipe (11) and the inner wall of the outer pipe (12) is the liquid filling pipeline (3), or the liquid filling pipeline (3) is located in the cavity formed by the outer wall of the inner pipe (11) and the inner wall of the outer pipe (12). The structure is simple, especially two-layer structure of the inner tube (11) and the outer tube (12) is adopted, the production process is simple, and the integrated performance is excellent.
The liquid filling pipeline (3) is stuck on the inner wall or the outer wall of the guide catheter body (1).
The distance A between the support saccule (2) and the tip end of the guiding catheter tube body (1) is 0.5-1cm. Too short a distance may cause difficult insertion of the guiding catheter and too long a distance may lose the purpose of preventing the insertion from being too deep.
The filling liquid of the supporting saccule (2) is normal saline or contrast agent, so that the supporting saccule (2) can be observed under X-ray perspective.
The beneficial effects of the invention are as follows: the active and passive supporting forces of the existing guide catheter are effectively improved, the insertion is prevented from being too deep, the complicated coronary heart disease interventional operation can be completed better, the operation risk is greatly reduced, and the medical cost and the operation time increased by unsuitable replacement of various guide catheters and guide wires with different shapes are reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the present invention in use;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a third embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Embodiment one: as shown in fig. 1 and 2, a deep insertion-preventing reinforced support type guide catheter comprises a guide catheter body 1, wherein the guide catheter body 1 consists of an inner pipe 11 and an outer pipe 12, a collapsible and inflatable support balloon 2 made of polyethylene terephthalate is arranged on the side wall of the outer pipe 12 at the tip end part of the guide catheter body 1, the distance A between the support balloon 2 and the tip end of the guide catheter body 1 is 0.5-1cm, the support balloon 2 is connected with a liquid filling pipeline 3, the support balloon 2 is filled with liquid or subjected to negative pressure through the liquid filling pipeline 3, and the liquid filling pipeline 3 is positioned in a cavity formed by the inner pipe 11 and the outer pipe 12, or the formed cavity is directly used as the liquid filling pipeline 3;
the supporting saccule 2 adopts normal saline or contrast agent to make right-angle transition with the side wall of the guiding catheter tube 1 after filling, so that the supporting saccule 2 can not slide into a blood vessel along with the guiding catheter, and the tearing of the blood vessel is avoided, and the top of the supporting saccule 2 adopts arc transition, so that the smoothness of the guiding catheter in the penetrating process is ensured, the specific dimension is that the height D is 7mm, and the length C is 10mm;
the support saccule 2 is provided with a through hole along the axial direction of the guide catheter tube 1, and the side wall of the tip part of the guide catheter tube 1 is provided with a mesh 4, so that the blood circulation is facilitated.
Embodiment two: in the case of the other structures and embodiments, as a modification, as shown in fig. 3, the support balloon 2 is in a circular ring shape, the support balloon 2 is sleeved on the outer wall of the guide catheter tube 1, and the inner ring outer wall of the support balloon 2 is connected with the outer wall of the guide catheter tube 1.
In the third embodiment, under the same condition as the first embodiment, as a modification, as shown in fig. 4, the liquid filling pipe 3 is adhered to the inner wall of the guiding catheter tube 1, or on the outer wall, in order to improve the smoothness of the guiding catheter tube 1, a groove adapted to the structure of the liquid filling pipe 3 may be provided on the outer wall or the inner wall of the guiding catheter tube 1, and the groove is matched with the liquid filling pipe 3 to ensure the trafficability of the guiding catheter tube 1 in the blood vessel.
Claims (6)
1. The utility model provides a prevent dark enhancement support formula guide catheter that inserts, includes guide catheter body (1), its characterized in that: a supporting saccule (2) which can be contracted and filled is arranged at the tip end part of the guiding catheter tube body (1), the supporting saccule (2) is connected with a liquid filling pipeline (3), and the liquid filling pipeline (3) is positioned on the inner wall, the outer wall or the pipe wall of the guiding catheter tube body (1);
the support balloon (2) is positioned on the side wall of the guide catheter tube body (1), the support balloon (2) and the side wall of the guide catheter tube body (1) are in right-angle transition after being filled, and the top of the support balloon (2) is in arc transition;
the height D of the support balloon (2) after filling is 6-9mm, and the length C is 10mm;
a through hole is formed in the support balloon (2) along the axial direction of the guide catheter body (1);
the side wall of the tip part of the guiding catheter body (1) is provided with meshes (4).
2. The depth-insertion-preventing reinforced support type guide catheter according to claim 1, wherein: the support balloon (2) is in a circular ring shape, and the outer wall of the inner ring of the support balloon (2) is connected with the outer wall of the guide catheter body (1).
3. The depth-insertion-preventing reinforced support type guide catheter according to claim 1 or 2, wherein: the guide catheter body (1) is composed of an inner pipe (11) and an outer pipe (12), and a cavity formed by the outer wall of the inner pipe (11) and the inner wall of the outer pipe (12) is the liquid filling pipeline (3), or the liquid filling pipeline (3) is located in the cavity formed by the outer wall of the inner pipe (11) and the inner wall of the outer pipe (12).
4. The depth-insertion-preventing reinforced support type guide catheter according to claim 1, wherein: the liquid filling pipeline (3) is stuck on the inner wall or the outer wall of the guide catheter body (1).
5. The depth-insertion-preventing reinforced support type guide catheter according to claim 1, wherein: the distance A between the support saccule (2) and the tip end of the guiding catheter tube body (1) is 0.5-1cm.
6. The depth-insertion-preventing reinforced support type guide catheter according to claim 1, wherein: the filling liquid of the support balloon (2) is normal saline or contrast agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035265.9A CN107050625B (en) | 2017-01-17 | 2017-01-17 | Deep insertion-preventing reinforced supporting type guiding catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035265.9A CN107050625B (en) | 2017-01-17 | 2017-01-17 | Deep insertion-preventing reinforced supporting type guiding catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107050625A CN107050625A (en) | 2017-08-18 |
| CN107050625B true CN107050625B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710035265.9A Active CN107050625B (en) | 2017-01-17 | 2017-01-17 | Deep insertion-preventing reinforced supporting type guiding catheter |
Country Status (1)
| Country | Link |
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| CN (1) | CN107050625B (en) |
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2017
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| Publication number | Publication date |
|---|---|
| CN107050625A (en) | 2017-08-18 |
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Effective date of registration: 20231219 Address after: Room 4059-4063, No.13 Tianchi Avenue, Mudong Town, Banan District, Chongqing, 401320 Patentee after: Nuohetai Biotechnology (Chongqing) Co.,Ltd. Address before: 400000 no.725 Jiangzhou Avenue, Dingshan street, Jiangjin District, Chongqing Patentee before: JIANGJIN CENTRAL HOSPITAL OF CHONGQING |
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