CN109200443B - Double-end coronary artery direct perfusion tube - Google Patents
Double-end coronary artery direct perfusion tube Download PDFInfo
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- CN109200443B CN109200443B CN201811260837.4A CN201811260837A CN109200443B CN 109200443 B CN109200443 B CN 109200443B CN 201811260837 A CN201811260837 A CN 201811260837A CN 109200443 B CN109200443 B CN 109200443B
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- coronary artery
- perfusion
- head
- perfusion tube
- right coronary
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- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/003—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/003—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
- A61M2025/0031—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
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- Health & Medical Sciences (AREA)
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- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
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Abstract
The invention relates to the technical field of medical instruments, and particularly discloses a double-end coronary artery direct perfusion tube which comprises a handle, a left coronary artery perfusion head, a hard connecting rod, a high-density right coronary artery perfusion head and a soft perfusion tube. The weight of the right coronary artery perfusion head is multiple times of that of the left coronary artery perfusion head, and the right coronary artery perfusion head can naturally hang to the mouth of the right coronary artery and be positioned under the action of gravity. When the double-head coronary artery direct perfusion tube is used, the left and right coronary arteries can be perfused simultaneously, the perfusion time is shortened by half, the whole operation time is greatly shortened, the operation risk can be reduced, and great benefits are brought to patients.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a double-end coronary artery direct perfusion tube.
Background
During extracorporeal circulation operation, cardiac arrest liquid and protecting liquid are continuously and directly perfused into the left and right coronary arteries. The conventional coronary artery perfusion tube generally comprises a handle and a perfusion head, is used for unilateral perfusion, different products are needed for perfusion of the left and right coronary arteries, and the difference between the left and right coronary arteries is mainly that the perfusion head has different angles. However, because the coronary ostia is narrow and the perfusion flow rate cannot be too high to avoid damaging the blood vessels, it takes time to perfuse the left and right coronary arteries with two products separately, and perfusion on one side usually takes 5-10 minutes and perfusion on both sides takes 10-20 minutes. In the prior art, a coronary perfusion tube which is convenient to use, does not damage blood vessels and can reduce the time consumption of perfusion in a heart operation is lacked.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a direct perfusion tube capable of simultaneously perfusing the left and right coronary artery ostia. Specifically, the double-end coronary artery direct perfusion tube provided by the invention comprises a handle, a left coronary artery perfusion head, a hard connecting rod, a high-density right coronary artery perfusion head and a soft perfusion tube. The invention contains two perfusion heads, and can realize simultaneous perfusion of left and right coronary arteries.
Further, preferably, the right coronary artery perfusion head is several times (more than 1 time) the weight of the left coronary artery perfusion head, and can naturally hang to the mouth of the right coronary artery and be positioned under the action of gravity.
Further, preferably, the right coronary artery perfusion head is connected with a main perfusion tube penetrating through the handle through a soft perfusion tube, and the soft perfusion tube can be bent and stretched at will and does not prevent the perfusion head from hanging down naturally; the left coronary perfusion head is connected with a main perfusion tube which penetrates through the handle through a hard connecting rod.
Further, preferably, the hard connecting rod has an included angle of 130-150 degrees.
Further, preferably, the material of the soft perfusion tube may be a corrosion-resistant medical-grade soft tube, and silica gel is usually selected.
Further, preferably, the material of the high-density right coronary artery perfusion head is selected from one of stainless steel, gold, platinum, titanium and tantalum; or an alloy or composite material of the above materials; or a composite material prepared from the above materials and polyethylene, polyvinyl chloride, polypropylene and nylon materials.
The invention aims to realize that a perfusion passage for perfusing the right coronary artery is added on the basis of a handle and a perfusion head of a direct left coronary perfusion tube, and comprises a high-density right coronary perfusion head and a soft perfusion tube, wherein the high-density right coronary perfusion head is connected to the handle through the soft perfusion tube (silicone tube). The filling head is made of metal or other high-density materials, has a certain weight and is not easy to displace.
The invention utilizes the characteristic that a patient lies on the back with the opening of the right coronary artery facing downwards when in operation, and designs a right perfusion head made of high-density material to be placed at the opening of the right coronary artery, and the perfusion head can not be randomly displaced under the action of gravity, so that the left coronary artery and the right coronary artery can be simultaneously perfused.
Has the advantages that: when the double-head coronary artery direct perfusion tube is used, the left and right coronary arteries can be perfused simultaneously, the perfusion time is shortened by half, the whole operation time is greatly shortened, the operation risk is reduced, and great benefits are brought to patients.
Drawings
The invention is shown in figure 6:
FIG. 1: the invention is a schematic diagram;
FIG. 2: the invention is a working schematic diagram;
FIG. 3: schematic representation of a prior art left coronary perfusion tube;
FIG. 4: prior art right coronary perfusion tube schematic;
FIG. 5: a working schematic diagram of a left coronary perfusion tube in the prior art;
FIG. 6: the prior art right coronary perfusion tube works schematically.
Wherein, 1, hard connecting rod; 2. a left coronary perfusion head; 3. a soft perfusion tube; 4. a high-density right coronary perfusion head; 5. a handle; A. the left coronary ostium; B. the right coronary ostium.
Detailed Description
The following non-limiting examples will allow one of ordinary skill in the art to more fully understand the present invention, but are not intended to limit the invention in any way.
Example 1
The structure of the medical instrument of the invention is described as follows with reference to the accompanying drawings 1-5: the invention relates to a double-end coronary artery direct perfusion tube, which consists of a handle 5, a hard connecting rod 1, a left coronary artery perfusion head 2, a soft perfusion tube 3 and a high-density right coronary artery perfusion head 4. The weight of the right coronary artery perfusion head 4 is more than 2 times of that of the left coronary artery perfusion head. The right coronary artery perfusion head 4 is connected with a main perfusion tube penetrating through the handle 5 through a soft perfusion tube 3, and the left coronary artery perfusion head 2 is connected with the main perfusion tube penetrating through the handle 5 through a hard connecting rod 1. The hard connecting rod 1 is in a bent pipe shape, and an included angle of 130-150 degrees is formed at the bent position. The material of soft perfusion tube is corrosion-resistant medical grade silica gel. The high-density right coronary artery perfusion head 4 is made of stainless steel. The self has certain weight, and can be well fixed on a required position in a use state.
Based on the structure of the handle and the perfusion head of the left crown direct perfusion tube as shown in figure 3; and on the basis of the structure of the handle and the perfusion head of the right crown direct perfusion tube shown in figure 5, the invention is improved; the improved structure is equivalent to adding a perfusion passage for perfusing the right coronary artery on the basis of the structure shown in fig. 3, and comprises a high-density right coronary artery perfusion head 4 and a soft perfusion tube 3, wherein the high-density right coronary artery perfusion head 4 is connected to a handle 5 through the soft perfusion tube 3 (silicone tube). The high-density right coronary perfusion head 4 is made of metal or other high-density materials, has a certain weight and is not easy to displace.
The invention utilizes the characteristic that a patient lies on the back and the opening B of the right coronary artery faces downwards during operation, and designs to place the right perfusion head 4 made of high-density material at the opening A of the right coronary artery, and the right perfusion head 4 can not be randomly displaced due to the action of gravity, so that the left coronary artery and the right coronary artery can be simultaneously perfused.
It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (1)
1. A double-end coronary artery direct perfusion tube is characterized by comprising a handle, a left coronary artery perfusion head and a hard connection
A rod, a high-density right coronary artery perfusion head and a soft perfusion tube;
the high-density right coronary artery perfusion head is connected with a main perfusion tube penetrating through the handle through a soft perfusion tube, and the left coronary artery perfusion head is connected with the main perfusion tube penetrating through the handle through a hard connecting rod;
the weight of the high-density right coronary artery perfusion head is more than 1 time of that of the left coronary artery perfusion head;
the hard connecting rods form an included angle of 130-150 degrees;
the material of the high-density right coronary artery perfusion head is selected from one of stainless steel, gold, platinum, titanium and tantalum; or an alloy or composite material of the above materials; or a composite material prepared from the material and polyethylene, polyvinyl chloride, polypropylene and nylon materials;
the material of soft perfusion tube is silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260837.4A CN109200443B (en) | 2018-10-26 | 2018-10-26 | Double-end coronary artery direct perfusion tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260837.4A CN109200443B (en) | 2018-10-26 | 2018-10-26 | Double-end coronary artery direct perfusion tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109200443A CN109200443A (en) | 2019-01-15 |
| CN109200443B true CN109200443B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811260837.4A Active CN109200443B (en) | 2018-10-26 | 2018-10-26 | Double-end coronary artery direct perfusion tube |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202409844U (en) * | 2011-12-30 | 2012-09-05 | 山东省立医院 | Connecting device for left coronary artery cardioplegia perfusion pipe and right coronary artery cardioplegia perfusion pipe |
| CN203647736U (en) * | 2014-01-03 | 2014-06-18 | 中国人民解放军第四军医大学 | Large-diameter gravity water sac duodenum nutrition pipe |
| CN203970992U (en) * | 2014-06-30 | 2014-12-03 | 中南大学 | A kind of coronary perfusion device |
| CN204619140U (en) * | 2015-05-05 | 2015-09-09 | 北京大学深圳医院 | Cardioplegic solution intrusion pipe |
| CN204655762U (en) * | 2015-02-27 | 2015-09-23 | 南京医科大学第一附属医院 | A kind of segment type coronary perfusion pipe |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330451A (en) * | 1992-12-17 | 1994-07-19 | Shelhigh, Inc. | Multi purpose perfusion cannula |
| CN204092786U (en) * | 2014-06-25 | 2015-01-14 | 泸州医学院附属医院 | Coronary perfusion pipe |
| CN204910437U (en) * | 2015-09-01 | 2015-12-30 | 王兆华 | Small intestine biconjugate is than radiography pipe |
-
2018
- 2018-10-26 CN CN201811260837.4A patent/CN109200443B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202409844U (en) * | 2011-12-30 | 2012-09-05 | 山东省立医院 | Connecting device for left coronary artery cardioplegia perfusion pipe and right coronary artery cardioplegia perfusion pipe |
| CN203647736U (en) * | 2014-01-03 | 2014-06-18 | 中国人民解放军第四军医大学 | Large-diameter gravity water sac duodenum nutrition pipe |
| CN203970992U (en) * | 2014-06-30 | 2014-12-03 | 中南大学 | A kind of coronary perfusion device |
| CN204655762U (en) * | 2015-02-27 | 2015-09-23 | 南京医科大学第一附属医院 | A kind of segment type coronary perfusion pipe |
| CN204619140U (en) * | 2015-05-05 | 2015-09-09 | 北京大学深圳医院 | Cardioplegic solution intrusion pipe |
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| Publication number | Publication date |
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| CN109200443A (en) | 2019-01-15 |
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