CN114796809A - Balloon guide catheter - Google Patents
Balloon guide catheter Download PDFInfo
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- CN114796809A CN114796809A CN202210325096.3A CN202210325096A CN114796809A CN 114796809 A CN114796809 A CN 114796809A CN 202210325096 A CN202210325096 A CN 202210325096A CN 114796809 A CN114796809 A CN 114796809A
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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
- A61M25/10—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
- A61M25/0021—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
-
- 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
- A61M25/0021—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
- A61M2025/0036—Multi-lumen catheters with stationary elements with more than four lumina
-
- 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
- A61M2025/004—Multi-lumen catheters with stationary elements characterized by lumina being arranged circumferentially
-
- 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
- A61M2025/0059—Catheters; Hollow probes characterised by structural features having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Child & Adolescent Psychology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a balloon guide catheter, which comprises a catheter seat assembly, a first catheter assembly, a liquid passing assembly and a balloon assembly, wherein the first catheter assembly is arranged on the catheter seat assembly; the proximal end of the first catheter assembly extends into the catheter hub assembly and is in communication with the catheter hub assembly. The first catheter component comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe, a first guide cavity is formed in the inner pipe, the outer pipe and the inner pipe are coaxial with the first guide cavity, and a cavity accommodating component is arranged between the outer pipe and the inner pipe; the proximal end of the liquid passing assembly is communicated with the catheter base assembly; the balloon component is arranged on the outer wall of the outer pipe in a surrounding mode, is positioned at the far end of the outer pipe and is communicated with the far end of the liquid passing component. This application is through setting up logical liquid subassembly in first catheter subassembly, and the subassembly of leading to liquid can be used for through the abundant sacculus subassembly of liquid in, can also support first catheter subassembly, need not to increase the support nature that the catheter subassembly can be strengthened to the specification of first catheter subassembly external diameter, has reduced the puncture risk.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a balloon guide catheter.
Background
In recent years, with the progress of imaging equipment and the introduction and improvement of novel interventional equipment, intravascular interventional diagnosis and treatment are rapidly developed, and as a minimally invasive treatment mode, vascular interventional doctors can treat more and more complex lesions, more and more cases are applied clinically, and the related disease types are more and more extensive.
At present, balloon guide catheters are produced and manufactured in a mode of combining an inner tube and an outer tube, a gap between the inner tube and the outer tube is used as a liquid through channel, but the existence of the gap easily causes the problem that the wall thickness of the catheter is insufficient, and the support performance of the catheter body is insufficient, some manufacturers need to solve the problem, under the condition of equivalent inner diameter, the wall thickness of the catheter is increased by adopting a method of increasing the outer diameter with the specification of one number, for example, the inner diameter is the same as that of an 8F balloon guide catheter, after the wall thickness of the catheter is increased, the specification of the outer diameter reaches 9F, when the balloon guide catheter is applied, a blood vessel puncture sheath with the specification of 9F is required to be used, but the larger the specification of the blood vessel sheath used during puncture is, the puncture opening is also enlarged, the pain of a patient is increased, and the puncture risk is increased.
Disclosure of Invention
In response to the deficiencies of the prior art, the present invention provides a balloon guide catheter.
The invention discloses a balloon guiding catheter, comprising:
a catheter hub assembly;
a first catheter assembly having a proximal end extending into the catheter hub assembly and communicating with the catheter hub assembly; the first catheter component comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe, a first guide cavity is formed in the inner pipe, the outer pipe and the inner pipe are coaxial with the first guide cavity, and a cavity accommodating component is arranged between the outer pipe and the inner pipe;
the liquid passing assembly is arranged in the accommodating cavity along the length direction of the outer pipe, one side of the liquid passing assembly is connected with the inner wall of the outer pipe, the other side of the liquid passing assembly is connected with the outer wall of the inner pipe, and the near end of the liquid passing assembly is communicated with the catheter holder assembly; and
the balloon component is arranged on the outer wall of the outer pipe in a surrounding mode, is positioned at the far end of the outer pipe and is communicated with the far end of the liquid passing component.
According to one embodiment of the invention, the catheter hub assembly comprises a main guide pipe and a side guide pipe, wherein the main guide pipe is connected with the side guide pipe, the main guide pipe is communicated with the first guide cavity, and the side guide pipe is communicated with the containing cavity and the liquid communicating assembly.
According to one embodiment of the invention, the liquid passing assembly comprises a liquid passing tube, the proximal end of the liquid passing tube is communicated with the side guide tube, the distal end of the liquid passing tube is communicated with the balloon assembly, and the liquid passing tube is gradually softened from the proximal end to the distal end.
According to one embodiment of the invention, the wall of the liquid passing pipe is provided with slits, and the slits are arranged from sparse to dense from the near end to the far end of the liquid passing pipe.
According to an embodiment of the invention, the liquid passing assembly further comprises a film covering member, and the film covering member is annularly arranged outside the liquid passing pipe member.
According to an embodiment of the invention, the wall of the outer tubular element becomes thicker from the proximal end to the distal end.
According to an embodiment of the present invention, the balloon guiding catheter further includes a stress diffusion member, the stress diffusion member is connected to the catheter hub member and sleeved outside the first catheter member.
According to an embodiment of the invention, the balloon guide catheter further comprises a visualization assembly disposed within the first catheter assembly and adjacent to the balloon assembly.
The invention also discloses a balloon guiding catheter, which is characterized by comprising:
a catheter hub assembly;
a second catheter assembly having a proximal end extending into the catheter hub assembly and communicating with the catheter hub assembly; the second guide cavity part is arranged in the guide pipe part and is coaxial with the guide pipe part; the pipe fitting is provided with a liquid-passing mounting position along the axial direction;
the liquid passing assembly is arranged in the liquid passing installation position, and the near end of the liquid passing assembly is communicated with the catheter holder assembly; and
the balloon component is arranged on the outer wall of the outer pipe in a surrounding mode, is positioned at the far end of the outer pipe and is communicated with the far end of the liquid passing component.
According to an embodiment of the invention, the wall of the catheter element becomes thicker from the proximal end to the distal end.
The beneficial effect of this application lies in: through set up logical liquid subassembly in first catheter subassembly, it can be used for when full sacculus subassembly through liquid to lead to the liquid subassembly, can also support first catheter subassembly, the support nature that the specification that need not to increase first catheter subassembly external diameter can strengthen the catheter subassembly, the puncture risk has been reduced, and when the negative pressure suction, first catheter subassembly can not become flat or collapse, the ability that first catheter subassembly bore the negative pressure has been improved, reduce the time of sacculus shrink, can in time be with the smooth internal of withdrawing from of sacculus guide catheter.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural view of a balloon catheter according to a first embodiment;
FIG. 2 is a cross-sectional view of a balloon catheter according to one embodiment;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a cross-sectional view of a first catheter assembly and a fluid passing assembly of the first embodiment;
FIG. 5 is a sectional view of a liquid passing assembly in the embodiment;
FIG. 6 is a schematic structural view of a balloon catheter according to a second embodiment;
FIG. 7 is a sectional view of a balloon catheter according to the second embodiment;
FIG. 8 is an enlarged view of portion B of FIG. 7;
FIG. 9 is a cross-sectional view of a second catheter assembly and a fluid passing assembly of the second embodiment.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
It should be noted that all the directional indications such as up, down, left, right, front and rear … … in the embodiment of the present invention are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
example one
Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a balloon catheter according to a first embodiment, and fig. 2 is a sectional view of the balloon catheter according to the first embodiment. A balloon guide catheter comprises a catheter seat component 1, a first catheter component 2, a liquid passing component 3 and a balloon component 4. The proximal end of the first catheter assembly 2 extends into the catheter hub assembly 1 and is in communication with the catheter hub assembly 1. The first catheter assembly 2 comprises an outer tube 21 and an inner tube 22, wherein the inner tube 22 is arranged in the outer tube 21, a first guiding cavity 221 is formed in the inner tube 22, the outer tube 21 and the inner tube 22 are coaxial with the first guiding cavity 221, and an accommodating cavity 23 is formed between the outer tube 21 and the inner tube 22. The liquid passing assembly 3 is arranged in the containing cavity 23 along the length direction of the outer pipe 21, one side of the liquid passing assembly 3 is connected with the inner wall of the outer pipe 21, the other side of the liquid passing assembly 3 is connected with the outer wall of the inner pipe 22, and the near end of the liquid passing assembly 3 is communicated with the catheter holder assembly 1. The balloon component 4 is annularly arranged on the outer wall of the outer pipe element 21, and the balloon component 4 is positioned at the far end of the outer pipe element 21 and is communicated with the far end of the liquid passing component 3.
Through set up logical liquid subassembly 3in first catheter subassembly 2, it can be used for through the abundant sacculus subassembly 4 of liquid to lead to liquid subassembly 3, can also support first catheter subassembly 2, need not to increase the support nature that catheter subassembly 3 can be strengthened to the specification of first catheter subassembly 2 external diameter, the puncture risk has been reduced, and when negative pressure suction, first catheter subassembly 2 can not become flat or collapse, the ability that first catheter subassembly 2 bore the negative pressure has been improved, reduce the time of sacculus shrink, can in time be internal with the smooth withdrawal from of sacculus guide catheter.
Specifically, the balloon guide catheter has a proximal end as an operating end and a distal end as an executing end.
Referring to fig. 1 and 2 again, the conduit socket assembly 1 is a hollow Y-shaped conduit socket, and includes a main conduit 11 and a side conduit 12, wherein the main conduit 11 is connected to the side conduit 12. The main guide pipe 11 is communicated with the first guide cavity 221, and during clinical application, an instrument is subjected to interventional therapy through the main guide pipe 11 and the first guide cavity 221. The side pipe fitting 12 is communicated with the containing cavity piece 23 and the liquid passing assembly 3, and in clinical application, liquid can be filled in the balloon assembly 4 through the side pipe fitting 12, the containing cavity piece 23 and the liquid passing assembly 3, and the liquid can be filled in the balloon assembly. The angle between the main pipe member 11 and the side pipe member 12 is an acute angle, preferably, the angle is between 45 and 75 degrees. In practical applications, catheter hub assembly 1 is a transparent PC or TPU.
The catheter base assembly 1 is further provided with a first gluing hole part 13 and a second gluing hole part 14, the inner pipe part 22 is bonded with the inside of the main pipe fitting 11 through glue 100, the glue 100 is injected into the main pipe fitting 11 through the first gluing hole part 13, the glue 100 cannot exceed one end, close to the first catheter assembly 2, of the side pipe fitting 12, the outer pipe part 21 is bonded with the inside of the main pipe fitting 11 through the glue 100, and the glue 100 is injected into the main pipe fitting 11 through the second gluing hole part 14. In a specific application, the glue 100 may be a UV glue.
Referring to fig. 1 to 3, fig. 3 is an enlarged view of a portion a of fig. 2. In practical application, the outer tube 21 is a single-layer thin-wall extruded tube with a wall thickness not exceeding 0.003in, and is a multi-section high polymer elastomer with different hardness, such as a nylon elastomer or a pebax single-layer tube, and the wall of the outer tube 21 gradually becomes thicker from the proximal end to the distal end. The far end of outer pipe 21 is equipped with sacculus installation groove 211 and liquid through hole 212, and sacculus subassembly 4 is located sacculus installation groove 211. The balloon mounting groove 211 is a groove, the far end of the outer pipe member 21 is thick, the balloon component 4 is mounted at the far end, the balloon component 4 is not convex, the overall conveying performance of the balloon guide catheter cannot be affected, and the liquid through hole 212 is communicated with the balloon component 4. The outer pipe 21 is provided with a plurality of liquid through holes 212, and when the number of the liquid through holes 212 is two, the two liquid through holes 212 are oppositely arranged; when the number of the liquid passing holes 212 is three, the three liquid passing holes 212 are arranged at equal intervals around the circumferential direction of the outer pipe member 21; when the number of the liquid through holes 212 is four, the four liquid through holes 212 are arranged in pairs; when the quantity of liquid through holes 212 is six, six liquid through holes 212 divide into two sets ofly, and the three liquid through holes 212 of every group are arranged around the circumferencial direction equidistance interval of outer pipe 21, through setting up a plurality of liquid through holes 212 of equidistance interval arrangement to it is more even that liquid is full when filling balloon subassembly 4. In practical application, the inner pipe fitting 22 is a three-layer composite pipe, the inner layer is a PTFE ultra-smooth layer, the middle layer is a metal woven layer, the woven wire is made of stainless steel, nickel-titanium alloy or tungsten wire and the like, the outer layer is a multi-section high polymer elastomer with different hardness, such as nylon elastomer, pebax, tpu and the like, and the soft arrangement is performed from the near end to the far end, so that the soft degree of the far end of the first conduit assembly 2 can not be influenced while the support performance is improved.
Referring to fig. 2-5, fig. 4 is a cross-sectional view of a first catheter assembly and a fluid passing assembly of the first embodiment, and fig. 5 is a cross-sectional view of the fluid passing assembly of the first embodiment. The liquid passing assembly 3 comprises a liquid passing pipe fitting 31, the near end of the liquid passing pipe fitting 31 is communicated with the side guide pipe fitting 12, the far end of the liquid passing pipe fitting is communicated with the balloon assembly 4, and the liquid passing pipe fitting 31 is gradually softened from the near end to the far end, so that the softness degree of the far end of the liquid passing pipe fitting 31 cannot be influenced while the support performance of the first catheter assembly 2 is improved. The pipe wall of the liquid passing pipe 31 is provided with slits 311, and the slits 311 are arranged from the near end to the far end of the liquid passing pipe 31 in a sparse-to-dense manner. The closer the slits 311 are arranged, the softer the liquid passing pipe 31, and the softness and hardness of the liquid passing assembly 3 can be adjusted by adjusting the density of the slits 311 on the liquid passing pipe 31. In practical application, the liquid passing pipe 31 is a thin-wall metal pipe, further, the liquid passing pipe 31 is a stainless steel pipe or a nickel-titanium alloy pipe, the cutting seam 311 is formed by cutting the liquid passing pipe 31 by a laser cutting machine, and the width of the cutting seam 311 is not more than 0.03 mm. Lead to liquid subassembly 3 and still include laminating spare 32, laminating spare 32 ring is located and is led to outside the liquid pipe fitting 31. Through set up tectorial membrane spare 32 outside leading to liquid subassembly 3, make the leading to liquid pipe fitting 31 after the cutting also can keep airtight, even lead to first pipe assembly 2 to sink because of the negative pressure, lead to liquid subassembly 3 still can provide stable liquid channel and guarantee the speed of withdrawing of sacculus subassembly 4. The number of the liquid passing assemblies 3 is multiple, the multiple liquid passing assemblies 3 are arranged at intervals around the circumferential direction of the accommodating cavity 23, preferably, the multiple liquid passing assemblies 3 are arranged at equal intervals around the circumferential direction of the accommodating cavity 23, and in the embodiment, the number of the liquid passing assemblies 3 is four. In specific application, the liquid passing assembly 3 can also adopt a single-layer PEEK pipe or other pipes which are not easy to collapse and deform.
Referring to fig. 1 again, a balloon guiding catheter further includes a stress diffusion assembly 5, the stress diffusion assembly 5 is connected to the catheter seat assembly 1 and sleeved outside the first catheter assembly 2. By arranging the stress diffusion component 5, the anti-torque capacity of the balloon guide catheter is improved, and the balloon guide catheter is prevented from being bent due to stress concentration in the using process. In specific applications, the stress diffusion member 5 may be formed by injection molding of an elastomer material such as TPU, PEBAX, etc., or formed by thermal shrinkage of a heat shrinkable tube made of polyolefin, etc., and has a length of 15-35mm, and preferably, the length of the stress diffusion member 5 is 25 mm.
Referring again to fig. 2 and 3, a balloon catheter further includes a visualization assembly 6, the visualization assembly 6 being disposed within the first catheter assembly 2 and adjacent to the balloon assembly 4. Specifically, the developing assembly 6 is annularly arranged in the tube wall of the inner tube 22 and can be seen under X-ray, so that the balloon catheter can be accurately positioned in the blood vessel, and the developing assembly 6 is made of tungsten wires or platinum-iridium alloy.
Example two
Referring to fig. 6 and 7, fig. 6 is a schematic structural view of a balloon guide catheter in the second embodiment, and fig. 7 is a sectional view of the balloon guide catheter in the second embodiment. The balloon guide catheter in this embodiment differs from the balloon guide catheter in the first embodiment in that it does not include the first catheter assembly 2, and the balloon guide catheter in this embodiment includes the second catheter assembly 7. The proximal end of the second catheter assembly 7 extends into the catheter hub assembly 1 and is in communication with the catheter hub assembly 1. The second duct assembly 7 comprises a duct member 71 and a second guiding cavity 72, the second guiding cavity 72 is disposed in the duct member 71, and the second guiding cavity 72 is coaxial with the duct member 71. The pipe fitting 71 is axially provided with a liquid passing mounting position 711, and the liquid passing assembly 3 is arranged in the liquid passing mounting position 711.
The structures of the catheter seat assembly 1, the liquid passing assembly 3, the balloon assembly 4, the stress diffusion assembly 5 and the developing assembly 6 in this embodiment are the same as those of the catheter seat assembly 1, the liquid passing assembly 3, the balloon assembly 4, the stress diffusion assembly 5 and the developing assembly 6 in the first embodiment, and are not described again here.
Referring to fig. 7 to 9, fig. 8 is an enlarged view of part B of fig. 7, and fig. 9 is a sectional view of a second catheter assembly and a liquid passing assembly according to the second embodiment. The main guide tube 11 is communicated with the second guide cavity 72, and during clinical application, an instrument is subjected to interventional therapy through the main guide tube 11 and the second guide cavity 72. Side pipe fitting 12 and logical liquid installation position 711 and logical liquid subassembly 3 intercommunication, during clinical application, liquid is sufficient balloon subassembly 4 through side pipe fitting 12 and logical liquid subassembly 3, and liquid can adopt sufficient liquid.
Through settling logical liquid subassembly 3in the pipe wall of second tubing subassembly 7, need not adopt other connected modes can fix the position of leading to liquid subassembly 3, and second tubing subassembly 7 adopts integrative pipe shaft, the wall thickness of second tubing subassembly 7 has further been improved, thereby the support nature of second tubing subassembly 7 has been improved, the specification that need not to increase second tubing subassembly 7 external diameter can strengthen the support nature of second tubing subassembly 7, the puncture risk has been reduced, and when the negative pressure suction, second tubing subassembly 7 can not become flat or sink, the ability that second tubing subassembly 7 bore the negative pressure has been improved, the time of reducing the sacculus shrink, can in time with the smooth internal of withdrawing from the throne of sacculus guide catheter.
Referring to fig. 1, 5 and 6, fig. 6 is another sectional view of a catheter assembly according to an embodiment. The proximal end of the second duct assembly 7 is bonded to the inside of the main duct 11 by glue 100, the glue 100 is injected into the main duct 11 from the first glue hole 13, and the glue 100 cannot go beyond one end of the side duct 12 close to the second duct assembly 7, one end of the duct 25 adjacent to the stress diffusion assembly 5 is bonded to the inside of the main duct 11 by the glue 100, and the glue 100 is injected into the main duct 11 from the second glue hole 14. The proximal tube wall of the second catheter component 7 is thin, the distal tube wall is thick, the balloon component 4 is arranged at the distal end of the second catheter component 7, the balloon component 4 is arranged at the distal end of the catheter piece 25, the balloon component 4 is guaranteed not to be protruded, and the overall conveying performance of the balloon guide catheter cannot be influenced. The developing assembly 6 is annularly disposed within the wall of the second conduit assembly 7.
Further, the distal end of second tubing subassembly 7 still is equipped with through-liquid hole spare 73, through-liquid hole spare 73 intercommunication leads to liquid subassembly 3 and sacculus subassembly 4, lead to liquid installation position 711, through-liquid hole spare 73 is the same with the quantity of leading to liquid subassembly 3, it settles in the pipe wall of second tubing subassembly 7 to lead to liquid subassembly 3, need not adopt other connected mode can fix the position of leading to liquid subassembly 3, and second tubing subassembly 7 adopts integrative pipe shaft, the wall thickness of pipe spare 25 has further been improved, thereby the support nature of first tubing subassembly 2 has been improved.
To sum up: a sacculus guide catheter in this application is through setting up logical liquid subassembly in first catheter subassembly, it can be used for when full sacculus subassembly through liquid to lead to the liquid subassembly, can also support first catheter subassembly, the specification that need not to increase first catheter subassembly external diameter can strengthen the support nature of catheter subassembly, the puncture risk has been reduced, and when negative pressure suction, first catheter subassembly can not become flat or sink, the ability that first catheter subassembly bore negative pressure has been improved, reduce the time of sacculus shrink, can in time be internal with smooth the withdrawing from of sacculus guide catheter. Another sacculus guide pipe in this application is through settling the liquid subassembly in the pipe wall of second tubing assembly, need not adopt other connected modes can fix the position of liquid subassembly, and the second tubing assembly adopts integrative pipe shaft, the wall thickness of second tubing assembly has further been improved, thereby the support nature of second tubing assembly has been improved, the support nature that the specification that need not to increase second tubing assembly external diameter can strengthen the second tubing assembly, the puncture risk has been reduced, and when the negative pressure suction, the second tubing assembly can not become flat or sink, the ability that the second tubing assembly bore the negative pressure has been improved, the time of sacculus shrink is reduced, can in time be with the smooth internal of withdrawing from of sacculus guide pipe.
The above is merely an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A balloon catheter tube, comprising:
a catheter hub assembly (1);
a first catheter assembly (2) having a proximal end extending into the catheter hub assembly (1) and communicating with the catheter hub assembly (1); the first catheter component (2) comprises an outer pipe (21) and an inner pipe (22), the inner pipe (22) is arranged in the outer pipe (21), a first guide cavity (221) is formed in the inner pipe (22), the outer pipe (21) and the inner pipe (22) are coaxial with the first guide cavity (221), and an accommodating cavity (23) is arranged between the outer pipe (21) and the inner pipe (22);
the liquid passing assembly (3) is arranged in the accommodating cavity piece (23) along the length direction of the outer pipe piece (21), one side of the liquid passing assembly (3) is connected with the inner wall of the outer pipe piece (21), the other side of the liquid passing assembly is connected with the outer wall of the inner pipe piece (22), and the near end of the liquid passing assembly (3) is communicated with the catheter seat assembly (1); and
the balloon component (4) is arranged on the outer wall of the outer pipe (21) in a surrounding mode, and the balloon component (4) is located at the far end of the outer pipe (21) and communicated with the far end of the liquid passing component (3).
2. The balloon guide catheter according to claim 1, wherein the catheter holder assembly (1) comprises a main guide tube (11) and a side guide tube (12), the main guide tube (11) is connected with the side guide tube (12), the main guide tube (11) is communicated with the first guide cavity (221), and the side guide tube (12) is communicated with the accommodating cavity (23) and the liquid passing assembly (3).
3. The balloon guide catheter according to claim 2, wherein the liquid passing assembly (3) comprises a liquid passing tube (31), a proximal end of the liquid passing tube (31) is communicated with the side guide tube (12), a distal end thereof is communicated with the balloon assembly (4), and the liquid passing tube (31) is gradually softened from the proximal end to the distal end.
4. The balloon guide catheter as claimed in claim 3, wherein the tube wall of the liquid passing tube (31) is provided with slits (311), and the slits (311) are arranged from sparse to dense from the proximal end to the distal end of the liquid passing tube (31).
5. The balloon guide catheter as recited in claim 4, characterized in that the liquid passing assembly (3) further comprises a film covering member (32), and the film covering member (32) is arranged around the outside of the liquid passing pipe member (31).
6. The balloon guide catheter as claimed in claim 1, wherein the wall of the outer tube (21) becomes thicker from the proximal end to the distal end.
7. The balloon guide catheter as claimed in any one of claims 1 to 6, further comprising a stress diffusion member (5), wherein the stress diffusion member (5) is connected to the catheter holder member (1) and is sleeved outside the first catheter member (2).
8. The balloon guide catheter of claim 7, further comprising a visualization assembly (6), the visualization assembly (6) being disposed within the first catheter assembly (2) and adjacent to the balloon assembly (4).
9. A balloon catheter tube, comprising:
a catheter hub assembly (1);
a second catheter assembly (7) having a proximal end extending into the catheter hub assembly (1) and communicating with the catheter hub assembly (1); the second catheter component (7) comprises a catheter part (71) and a second guide cavity part (72), the second guide cavity part (72) is arranged in the catheter part (71), and the second guide cavity part (72) is coaxial with the catheter part (71); the pipe guide piece (71) is provided with a liquid passing installation position (711) along the axial direction;
the liquid passing assembly (3) is arranged in the liquid passing installation position (711), and the near end of the liquid passing assembly (3) is communicated with the catheter seat assembly (1); and
the balloon component (4) is arranged on the outer wall of the outer pipe (21) in a surrounding mode, and the balloon component (4) is located at the far end of the outer pipe (21) and communicated with the far end of the liquid passing component (3).
10. The balloon guide catheter as claimed in claim 9, wherein the catheter member (71) has a wall that becomes thicker from the proximal end to the distal end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210325096.3A CN114796809A (en) | 2022-03-30 | 2022-03-30 | Balloon guide catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210325096.3A CN114796809A (en) | 2022-03-30 | 2022-03-30 | Balloon guide catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114796809A true CN114796809A (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210325096.3A Pending CN114796809A (en) | 2022-03-30 | 2022-03-30 | Balloon guide catheter |
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| Country | Link |
|---|---|
| CN (1) | CN114796809A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115317765A (en) * | 2022-08-17 | 2022-11-11 | 李科 | Anti-drop's half sacculus pipe a little is intervene to liver courage |
| CN116650805A (en) * | 2023-04-24 | 2023-08-29 | 昌明生物科技（苏州）有限公司 | Bending-adjusting catheter sheath device and bending-adjusting method thereof |
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Application publication date: 20220729 |