CN108211095B - Catheter for intravascular sub-low temperature treatment - Google Patents
Catheter for intravascular sub-low temperature treatment Download PDFInfo
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- CN108211095B CN108211095B CN201810024028.7A CN201810024028A CN108211095B CN 108211095 B CN108211095 B CN 108211095B CN 201810024028 A CN201810024028 A CN 201810024028A CN 108211095 B CN108211095 B CN 108211095B
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- balloon
- catheter
- channel
- liquid inlet
- conduit
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- 239000007788 liquid Substances 0.000 claims abstract description 115
- 238000003032 molecular docking Methods 0.000 claims description 16
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 9
- 239000012530 fluid Substances 0.000 description 9
- 239000011780 sodium chloride Substances 0.000 description 9
- 239000003814 drug Substances 0.000 description 8
- 229940079593 drug Drugs 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000012267 brine Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000005077 saccule Anatomy 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012377 drug delivery Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/12—Devices for heating or cooling internal body cavities
- A61F7/123—Devices for heating or cooling internal body cavities using a flexible balloon containing the thermal element
-
- 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
- A61M25/1011—Multiple 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
- A61M25/0021—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
-
- 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
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0054—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water
- A61F2007/0056—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water for cooling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/12—Devices for heating or cooling internal body cavities
- A61F2007/126—Devices for heating or cooling internal body cavities for invasive application, e.g. for introducing into blood vessels
-
- 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
- A61M2025/0008—Catheters; Hollow probes having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
-
- 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
- A61M2025/0025—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter having a collapsible lumen
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0216—Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
Abstract
The invention relates to a catheter for intravascular sub-low temperature treatment, which comprises a catheter main body, wherein at least a first balloon and a second balloon are arranged on the catheter main body, the first balloon is positioned at the front end of the catheter main body, a first channel for inputting heat exchange liquid and a second channel for outputting the heat exchange liquid are formed in the catheter main body, a liquid inlet of the first balloon is communicated with the first channel, and a liquid outlet of the first balloon is communicated with the second channel; the liquid inlet hole and the liquid outlet hole of the second balloon are communicated with the second channel, the liquid inlet hole of the second balloon is close to the first balloon, and the liquid outlet hole of the second balloon is far away from the first balloon; the device also comprises a first catheter sleeve, wherein a first protruding part which can reduce or even block the flow of the second channel is formed on the inner wall of the first catheter sleeve; the first catheter sleeve is sleeved on the catheter main body and is positioned between the liquid inlet hole of the second balloon and the liquid outlet hole of the second balloon. The invention has the characteristics of simple structure, scientific design, high heat exchange efficiency, good treatment effect and the like.
Description
Technical Field
The invention relates to the technical field of medical equipment for clinical use, in particular to a catheter for intravascular sub-low temperature treatment.
Background
Sub-hypothermia brain protection technology has been used for over 70 years, and has undergone the development processes of body surface cooling methods such as ice bags, ice caps, ice blankets, cryogenic treatment machines up to date, cryogenic extracorporeal circulation and intravascular hypothermia, and the application of the technology has had an undestirable therapeutic effect on reducing mortality, reducing disability rate and improving prognosis. Cryogenic therapy has been commonly applied in various clinical disciplines such as intraneurology, surgery, intensive care, emergency department, burn department, anesthesia department, cardiac department, organ transplantation, etc. with the rapid development of medical science today.
Currently, catheters inserted into the human body are an important part of therapy in intravascular sub-cryogenic treatment techniques. The conventional catheter for intravascular sub-low temperature treatment mostly comprises a catheter body and a plurality of balloons arranged on the catheter body, saline is generally used as heat exchange liquid in the market at present, and a saline inlet cavity and a saline outlet cavity are arranged in the catheter body. When the saline water treatment device is applied, saline water uniformly enters from the saline water inlet cavity and is shunted into each balloon, and after heat exchange, the saline water in the balloons uniformly flows into the saline water outlet cavity and flows out of the body through the saline water outlet cavity. In such a structure, the input heat exchange liquid is taken as the colder brine as an example, the colder brine is divided into a plurality of outlets in the brine inlet cavity and respectively enters into the balloons, and as the sequence exists on the catheter body among the balloons, the temperature of the brine becomes relatively high when flowing into the balloon on the catheter body, which is positioned close to the front end, and when the intravascular sub-low temperature treatment is carried out, the balloon positioned at the front end of the catheter body is closer to the position to be treated, so that the heat exchange efficiency of the position to be treated is reduced, and the intravascular sub-low temperature treatment effect is influenced.
Disclosure of Invention
The invention aims to provide a catheter for intravascular sub-low temperature treatment, which has the advantages of simple structure, scientific design, high heat exchange efficiency, good sub-low temperature treatment effect and the like.
The technical scheme of the invention is realized as follows: the catheter for intravascular sub-low temperature treatment comprises a catheter main body, wherein at least a first balloon and a second balloon are arranged on the catheter main body, the first balloon is positioned at the front end of the catheter main body, and a first channel for inputting heat exchange liquid and a second channel for outputting the heat exchange liquid are formed in the catheter main body; the liquid inlet hole and the liquid outlet hole of the second balloon are communicated with the second channel, the liquid inlet hole of the second balloon is close to the first balloon, and the liquid outlet hole of the second balloon is far away from the first balloon; the device also comprises a first catheter sleeve, wherein the first catheter sleeve is tubular, and a first protruding part which is used for extruding the second channel to reduce or even block the flow of the extruded part of the second channel is formed on the inner wall of the first catheter sleeve; the first catheter sleeve is sleeved on the catheter main body and is positioned between the liquid inlet hole of the second balloon and the liquid outlet hole of the second balloon.
Further, the first catheter sleeve is made of plastic of a hard material, and the catheter body is made of an elastic material.
Preferably, the first protrusion portion is formed with a first slope portion and a second slope portion, and the slope of the first slope portion is greater than the slope of the second slope portion.
Still further, the catheter main body is further formed with a third channel and a fourth channel, and a first liquid inlet and a second liquid inlet and outlet; the first liquid inlet and outlet are positioned between the first balloon and the second balloon; the second liquid inlet and outlet are positioned on the front end face of the catheter main body; the third channel is communicated with the first liquid inlet and outlet; the fourth channel is communicated with the second liquid inlet and outlet.
Preferably, a third balloon is further arranged on the catheter main body, and the first balloon, the second balloon and the third balloon are sequentially arranged; the liquid inlet hole and the liquid outlet hole of the third balloon are communicated with the second channel, the liquid inlet hole of the third balloon is close to the second balloon, and the liquid outlet hole of the third balloon is far away from the second balloon; the device also comprises a second catheter sleeve, wherein the second catheter sleeve is tubular, and a second protruding part which is used for extruding the second channel to reduce the flow of the extruded part of the second channel and even block the flow is formed on the inner wall of the second catheter sleeve; the second catheter sleeve is sleeved on the catheter main body and is positioned between the liquid inlet hole of the third balloon and the liquid outlet hole of the third balloon.
Preferably, a fifth channel and a third liquid inlet and outlet are further formed on the catheter main body, the third liquid inlet and outlet are located between the second balloon and the third balloon, and the fifth channel is communicated with the third liquid inlet and outlet.
Preferably, the volume of the first balloon is the same as the volume of the second balloon, which is larger than the volume of the third balloon.
Preferably, the invention further comprises a first conduit, a second conduit, a docking station, a first joint and a second joint, wherein the aperture of the input end of the first joint is different from the aperture of the input end of the second joint; one end of the first conduit is connected with the first joint, and the other end of the first conduit is communicated with the first channel through the docking station; one end of the second conduit is connected with the second joint, and the other end of the second conduit is communicated with the second channel through the docking station.
The invention has the beneficial effects that: (1) The flow direction of the heat exchange liquid flows from the first channel to the first balloon positioned at the forefront end of the catheter main body, so that the heat exchange liquid is ensured to exchange heat with the part close to the treatment to be treated, the heat exchange efficiency is greatly improved, and the effect of sub-low temperature treatment is effectively improved.
(2) The invention also discloses a design that the flow of the extruded part of the second channel is reduced or even blocked by extruding the second channel through the first catheter sleeve sleeved on the catheter main body between the liquid inlet hole of the second balloon and the liquid outlet hole of the second balloon, so that most of heat exchange liquid flowing out from the first balloon enters the second balloon and flows out from the liquid outlet hole of the second balloon, the second balloon is filled more quickly, and the heat exchange liquid can exchange heat with a human body more quickly, so that the invention has the advantages of simple structure, reasonable design, high heat exchange efficiency and the like.
(3) According to the invention, due to the design that the volume of the third balloon is smaller than that of the second balloon, when the device is applied, in the process that blood flows from the second balloon to the third balloon, the blood flows faster due to the height difference between the third balloon and the second balloon, so that the heat exchange efficiency is improved, and the sub-low temperature treatment effect of the device is better.
(4) When the invention is applied, the first liquid inlet and outlet are arranged between the first balloon and the second balloon, and the second liquid inlet and outlet are positioned on the end face of the front end of the catheter main body, so that a certain distance is reserved between the first liquid inlet and outlet communicated with the third channel and the second liquid inlet and outlet communicated with the fourth channel, and the first balloon is blocked, so that when the third channel and the fourth channel are used as medicine input channels, the problem of incompatibility among medicines is solved, and the application range of the invention is wider.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the structure of FIG. 1 after being cut at A-A.
Fig. 3 is a schematic view of the bottom structure of fig. 2.
Fig. 4 is a schematic view of the structure of fig. 3 in section in the direction B-B with the flow direction of the heat exchange liquid.
Fig. 5 is a schematic view of a cross-sectional structure in the direction C-C in fig. 2.
FIG. 6 is a schematic view of the structure of FIG. 1 after being cut at A-A and turned horizontally.
Reference numerals illustrate: 1-a catheter body; 11-a first channel; 12-a second channel; 13-a third channel; 131-a first fluid inlet and outlet; 14-fourth channel; 141-a second fluid inlet and outlet; 15-fifth channel; 151-a third liquid inlet and outlet; 16-a developing ring; 17-catheter tip; 2-a first balloon; 21-a liquid inlet hole; 22-a liquid outlet hole; 3-a second balloon; 31-a liquid inlet hole; 32-a liquid outlet hole; 4-a first catheter hub; 41-a first projection; 5-a third balloon; 51-a liquid inlet hole; 52-a liquid outlet hole; 6-a second catheter hub; 61-a second projection; 7-a first conduit; 71-a first linker; 8-a second conduit; 81-a second linker; 9-connecting seats; 10-a third conduit; 101-a third linker; 20-fourth conduit; 201-fourth linker; 30-a fifth conduit; 301-fifth joint; 40-conduit clip.
Detailed Description
As shown in fig. 1, 2, 3, 4, 5 and 6, the catheter for intravascular sub-low temperature treatment according to the present invention comprises a catheter main body 1, a catheter tip 17 is further provided at the front end of the catheter main body 1, a first balloon 2 and a second balloon 3 are provided on the catheter main body 1, the first balloon 2 is positioned at the front end of the catheter main body 1, a first channel 11 for inputting heat exchange fluid and a second channel 12 for outputting heat exchange fluid are formed in the catheter main body 1, a fluid inlet 21 of the first balloon 2 is communicated with the first channel 11, and a fluid outlet 22 of the first balloon 2 is communicated with the second channel 12; the flow direction of the heat exchange liquid flows from the first channel 11 to the first balloon 2 positioned at the forefront end of the catheter main body 1, so that the heat exchange liquid is ensured to exchange heat with the part close to the treatment to be treated, the heat exchange efficiency is greatly improved, and the effect of the sub-low temperature treatment is effectively improved. The liquid inlet hole 31 and the liquid outlet hole 32 of the second balloon 3 are communicated with the second channel 12, the liquid inlet hole 31 of the second balloon 3 is close to the first balloon 2, and the liquid outlet hole 32 of the second balloon 3 is far away from the first balloon 2; in order to achieve the object of the present invention, the present invention further includes a first catheter hub 4, the first catheter hub 4 is tubular, and a first protrusion 41 for pressing the second channel 12 to reduce or even block the flow rate of the pressed portion of the second channel 12 is formed on the inner wall of the first catheter hub 4; the first catheter sleeve 4 is sleeved on the catheter main body 1 and is positioned between the liquid inlet hole 31 of the second balloon 3 and the liquid outlet hole 32 of the second balloon 3. The design ensures that most of the heat exchange liquid flowing out from the first balloon 2 enters the second balloon 3 first and then flows out from the liquid outlet 32 of the second balloon 3, so that the second balloon 3 is filled more quickly, and the heat exchange liquid can exchange heat with a human body more quickly, thereby the invention has the advantages of simple structure, reasonable design, high heat exchange efficiency and the like.
In order to make the structure of the present invention more reasonable, the first catheter sleeve 4 is sleeved on the catheter main body 1 and will not deform due to the resilience of the catheter main body 1, so that the first protruding part 41 of the first catheter sleeve 4 can effectively squeeze the catheter main body 1, the first catheter sleeve 4 is made of hard plastic, and the catheter main body 1 is made of elastic material.
In order to make the first catheter hub 4 more easily fit into the catheter main body 1, as shown in fig. 3 and 4, the first protrusion 41 is formed with a first slope portion and a second slope portion, and the slope of the first slope portion is greater than that of the second slope portion.
In order to further optimize the present invention, the scope of application of the present invention is wider, as shown in fig. 3, 4 and 6, the catheter body 1 is further formed with a third channel 13 and a fourth channel 14, and a first liquid inlet and outlet 131 and a second liquid inlet and outlet 141; the first liquid inlet and outlet 131 is positioned between the first balloon 2 and the second balloon 3; the second liquid inlet and outlet 141 is positioned on the front end face of the catheter main body 1; the third channel 13 is communicated with the first liquid inlet and outlet 131; the fourth passage 14 communicates with the second liquid inlet and outlet 141, and a through hole communicating with the second liquid inlet and outlet 141 is formed in the catheter tip 17. When the third channel 13 and the fourth channel 14 are used as drug delivery channels or blood drawing channels or blood transfusion channels according to the needs, when the third channel 13 and the fourth channel 14 are used as drug delivery channels, the first liquid inlet and outlet 131 is used as a drug outlet of the third channel 13, the second liquid inlet and outlet 141 is used as a drug outlet of the fourth channel 14, and by adopting the design that the first liquid inlet and outlet 131 is arranged between the first balloon 2 and the second balloon 3 and the second liquid inlet and outlet 141 is positioned on the front end surface of the catheter main body 1, a certain interval is reserved between the first liquid inlet and outlet 131 communicated with the third channel 13 and the second liquid inlet and outlet 141 communicated with the fourth channel 14, and the first balloon 2 is blocked, so that the problem of incompatibility between drugs is solved when the third channel 13 and the fourth channel 14 are used as drug input channels, and the application range of the invention is wider.
In order to make the intravascular sub-low temperature treatment effect of the invention better, as shown in fig. 1, 2, 3, 4 and 6, a third balloon 5 is further arranged on the catheter main body 1, and the first balloon 2, the second balloon 3 and the third balloon 5 are sequentially arranged; the liquid inlet hole 51 and the liquid outlet hole 52 of the third balloon 5 are both communicated with the second channel 12, the liquid inlet hole 51 of the third balloon 5 is close to the second balloon 3, and the liquid outlet hole 52 of the third balloon 5 is far away from the second balloon 3; in order to achieve the object of the present invention, the present invention further includes a second catheter hub 6, the second catheter hub 6 is tubular, the second catheter hub 6 has the same structure as the first catheter hub 4, the present invention only has different names, and a second protrusion 61 for pressing the second channel 12 to reduce or even block the flow of the pressed portion of the second channel 12 is formed on the inner wall of the second catheter hub 6; the second catheter sleeve 6 is sleeved on the catheter main body 1 and is positioned between the liquid inlet hole 51 of the third balloon 5 and the liquid outlet hole 52 of the third balloon 5. By the design, most of heat exchange liquid flowing out from the second balloon 3 firstly enters the third balloon 5 and then flows out from the liquid outlet 52 of the third balloon 5, so that the third balloon 5 is filled more rapidly, the heat exchange liquid can exchange heat with a human body more rapidly, and meanwhile, the effect of sub-low temperature treatment is further improved by adopting the design of three balloons.
Still further, as shown in fig. 3, 4 and 6, a fifth channel 15 and a third fluid inlet and outlet 151 are further formed in the catheter body 1, the third fluid inlet and outlet 151 is located between the second balloon 3 and the third balloon 5, and the fifth channel 15 is communicated with the third fluid inlet and outlet 151. The first liquid inlet and outlet 131 communicated with the third channel 13, the second liquid inlet and outlet 141 communicated with the fourth channel 14 and the third liquid inlet and outlet 151 communicated with the fifth channel 15 are separated by a certain distance, and the first balloon 2 and the second balloon 3 form mutual blocking, so that the problem of incompatibility among three medicines is solved when the third channel 13, the fourth channel 14 and the fifth channel 15 are simultaneously used as medicine input channels.
In order to further improve the heat exchange efficiency in the case of the sub-cryogenic treatment, as shown in fig. 1, the volume of the first balloon 2 is the same as the volume of the second balloon 3, and the volume of the second balloon 3 is larger than the volume of the third balloon 5. When the invention is applied, in the process of flowing blood from the second saccule 3 to the third saccule 5, the blood flows faster due to the height difference between the third saccule 5 and the second saccule 3, so that the invention is more beneficial to improving the heat exchange efficiency and has better sub-low temperature treatment effect.
In order to facilitate the connection between the catheter main body 1 and the sub-low temperature treatment equipment, as shown in fig. 1 and 3, the invention further comprises a first catheter 7, a second catheter 8, a docking seat 9, a first connector 71 and a second connector 81, wherein the aperture of the input end of the first connector 71 is different from the aperture of the input end of the second connector 81; one end of the first conduit 7 is connected with the first joint 71, and the other end of the first conduit 7 is communicated with the first channel 11 through the docking seat 9; one end of the second conduit 8 is connected with the second joint 81, and the other end of the second conduit 8 is communicated with the second channel 12 through the docking seat 9. By adopting fool-proof designs in which the aperture of the input end of the first connector 71 and the aperture of the input end of the second connector 81 are different from each other, misoperation can be effectively avoided.
In order to facilitate the conduction of the sub-low temperature treatment device with the third channel 13, the fourth channel 14 and the fifth channel 15 of the catheter main body 1 during use, the invention is more convenient to use, and as shown in fig. 1 and 3, the invention further comprises a third catheter 10, a fourth catheter 20, a fifth catheter 30, a third joint 101, a fourth joint 201 and a fifth joint 301, wherein one end of the third catheter 10 is connected with the third joint 101, and the other end of the third catheter 10 is communicated with the third channel 13 through a docking seat 9; one end of the fourth conduit 20 is connected with the fourth joint 201, and the other end of the fourth conduit 20 is communicated with the fourth channel 14 through the docking seat 9; one end of the fifth conduit 30 is connected to the fifth joint 301, and the other end of the fifth conduit 30 is communicated with the fifth channel 15 through the docking station 9.
For the convenience of the present invention, as shown in fig. 1, the third catheter 10, the fourth catheter 20, and the fifth catheter 30 are respectively provided with a catheter clip 40. The third catheter 10, the fourth catheter 20 and the fifth catheter 30 can be cut off by pushing the catheter clamps 40 on each catheter, so that the invention is more convenient to use.
In order to facilitate the clarity of the depth of insertion of the catheter body 1 during use, to facilitate the use thereof, a development ring 16 is formed on the catheter body 1 as shown in fig. 1.
Claims (10)
1. The utility model provides a catheter for intravascular sub-low temperature treatment, includes the catheter main part be equipped with first sacculus and second sacculus on the catheter main part at least, first sacculus is located the front end of catheter main part, is formed with the first passageway of heat exchange liquid input and the second passageway of heat exchange liquid output in the catheter main part, its characterized in that: the liquid inlet hole of the first balloon is communicated with the first channel, and the liquid outlet hole of the first balloon is communicated with the second channel; the liquid inlet hole and the liquid outlet hole of the second balloon are communicated with the second channel, the liquid inlet hole of the second balloon is close to the first balloon, and the liquid outlet hole of the second balloon is far away from the first balloon; the device also comprises a first catheter sleeve, wherein the first catheter sleeve is tubular, and a first protruding part which is used for extruding the second channel to reduce or even block the flow of the extruded part of the second channel is formed on the inner wall of the first catheter sleeve; the first catheter sleeve is sleeved on the catheter main body and is positioned between the liquid inlet hole of the second balloon and the liquid outlet hole of the second balloon.
2. A catheter for intravascular sub-cryogenic treatment according to claim 1, wherein: the first catheter sleeve is made of hard plastic, and the catheter body is made of elastic material.
3. A catheter for intravascular sub-cryogenic treatment according to claim 1, wherein: the first protruding portion is provided with a first slope portion and a second slope portion, and the gradient of the first slope portion is larger than that of the second slope portion.
4. A catheter for intravascular sub-cryogenic treatment according to claim 1, wherein: the catheter main body is also provided with a third channel, a fourth channel, a first liquid inlet and a second liquid outlet; the first liquid inlet and outlet are positioned between the first balloon and the second balloon; the second liquid inlet and outlet are positioned on the front end face of the catheter main body; the third channel is communicated with the first liquid inlet and outlet; the fourth channel is communicated with the second liquid inlet and outlet.
5. A catheter for intravascular sub-cryogenic treatment according to claim 1 or 4, wherein: a third balloon is arranged on the catheter main body, and the first balloon, the second balloon and the third balloon are sequentially arranged; the liquid inlet hole and the liquid outlet hole of the third balloon are communicated with the second channel, the liquid inlet hole of the third balloon is close to the second balloon, and the liquid outlet hole of the third balloon is far away from the second balloon; the device also comprises a second catheter sleeve, wherein the second catheter sleeve is tubular, and a second protruding part which is used for extruding the second channel to reduce the flow of the extruded part of the second channel and even block the flow is formed on the inner wall of the second catheter sleeve; the second catheter sleeve is sleeved on the catheter main body and is positioned between the liquid inlet hole of the third balloon and the liquid outlet hole of the third balloon.
6. A catheter for intravascular sub-cryogenic treatment according to claim 5, wherein: the catheter body is also provided with a fifth channel and a third liquid inlet and outlet, the third liquid inlet and outlet is positioned between the second balloon and the third balloon, and the fifth channel is communicated with the third liquid inlet and outlet.
7. A catheter for intravascular sub-cryogenic treatment according to claim 6, wherein: the volume of the first balloon is the same as the volume of the second balloon, and the volume of the second balloon is larger than the volume of the third balloon.
8. A catheter for intravascular sub-cryogenic treatment according to claim 1, wherein: the device also comprises a first conduit, a second conduit, a docking seat, a first joint and a second joint, wherein the aperture of the input end of the first joint is different from the aperture of the input end of the second joint; one end of the first conduit is connected with the first joint, and the other end of the first conduit is communicated with the first channel through the docking station; one end of the second conduit is connected with the second joint, and the other end of the second conduit is communicated with the second channel through the docking station.
9. A catheter for intravascular sub-cryogenic treatment according to claim 6, wherein: the device further comprises a third conduit, a fourth conduit, a fifth conduit, a docking seat, a third joint, a fourth joint and a fifth joint, wherein one end of the third conduit is connected with the third joint, and the other end of the third conduit is communicated with the third channel through the docking seat; one end of the fourth conduit is connected with the fourth joint, and the other end of the fourth conduit is communicated with the fourth channel through the docking station; one end of the fifth conduit is connected with the fifth joint, and the other end of the fifth conduit is communicated with the fifth channel through the docking station.
10. A catheter for intravascular sub-cryogenic treatment according to claim 9, wherein: and the third guide pipe, the fourth guide pipe and the fifth guide pipe are respectively provided with a guide pipe clamp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810024028.7A CN108211095B (en) | 2018-01-12 | 2018-01-12 | Catheter for intravascular sub-low temperature treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810024028.7A CN108211095B (en) | 2018-01-12 | 2018-01-12 | Catheter for intravascular sub-low temperature treatment |
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| CN108211095A CN108211095A (en) | 2018-06-29 |
| CN108211095B true CN108211095B (en) | 2023-10-27 |
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| CN201810024028.7A Active CN108211095B (en) | 2018-01-12 | 2018-01-12 | Catheter for intravascular sub-low temperature treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109173004A (en) * | 2018-10-25 | 2019-01-11 | 大连科万维医疗科技有限公司 | A kind of cardioplegic solution intrusion pipe |
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| CN108211095A (en) | 2018-06-29 |
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