CN117838386A - Guide wire tube, assembly and conveying system for interventional operation - Google Patents
Guide wire tube, assembly and conveying system for interventional operation Download PDFInfo
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- CN117838386A CN117838386A CN202410123825.6A CN202410123825A CN117838386A CN 117838386 A CN117838386 A CN 117838386A CN 202410123825 A CN202410123825 A CN 202410123825A CN 117838386 A CN117838386 A CN 117838386A
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- tube
- section
- guide wire
- interventional
- tube section
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- 238000013152 interventional procedure Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 11
- 230000023597 hemostasis Effects 0.000 abstract description 6
- 241000446313 Lamella Species 0.000 abstract description 2
- 210000004204 blood vessel Anatomy 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 210000003709 heart valve Anatomy 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000002439 hemostatic effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 210000005003 heart tissue Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The application relates to the technical field of medical equipment, and provides a wire guide tube, assembly and conveying system for interventional operation, wherein, the wire guide tube for interventional operation includes: the catheter body includes a first tubular segment at a distal end and a second tubular segment at a proximal end, the first tubular segment having an inner diameter dimension greater than an inner diameter dimension of the second tubular segment. Through the technical scheme of this application, the seal wire pipe still possesses the hemostasis in the time of can keeping the smoothness with the seal wire, when carrying out the exchange instrument in the art, can effectively remain the seal wire to prevent the seal wire secondary and stride the lamella and to the artificial damage.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to a guide wire tube, a guide wire assembly and a guide wire conveying system for interventional operation.
Background
The function of the guide wire tube is to advance along the guide wire, so that the guide wire traceability (guide wire traceability: the capability of an instrument to travel along the guide wire) is provided for the conveying system, and the guide wire is limited by a human tissue structure in a human body and is in a bending state, so that the matching smoothness of the guide wire tube and the guide wire is particularly important, however, in the prior art, the loose arrangement between the guide wire tube and the guide wire can have the problem of blood leakage.
Disclosure of Invention
The technical problem that this application will solve lies in providing a guide wire pipe, subassembly and conveying system for interventional operation, and the guide wire pipe still possesses the hemostasis when can keeping smooth with the guide wire, when carrying out exchange instrument in the art, can effectively remain the guide wire to prevent that the guide wire from crossing the lamella secondarily and to the artificial damage.
In order to solve the technical problems, the application adopts the following technical scheme:
in a first aspect, the present application provides a guidewire tube for interventional procedures, comprising: the catheter comprises a catheter body including a first distal segment and a second proximal segment, the first segment having an inner diameter dimension greater than an inner diameter dimension of the second segment.
As one implementation mode, the guide wire tube for interventional operation further comprises a transition connecting section, two ends of the transition connecting section are respectively connected with the first tube section and the second tube section, and the inner diameter size of the transition connecting section is gradually reduced from the first tube section to the second tube section.
As an embodiment, the first pipe section is fixedly connected to the second pipe section.
As one embodiment, the first tube section includes a tapered section toward the distal end of the second tube section, the tapered section being connected to the second tube section, an inner diameter dimension of the tapered section being tapered from the first tube section toward the second tube section.
As one embodiment, the second pipe section includes a diverging section toward the proximal end of the first pipe section, the diverging section being connected to the first pipe section, an inner diameter dimension of the diverging section being gradually expanded from the second pipe section toward the first pipe section.
As an embodiment, the first and second pipe sections are integrally formed.
As one embodiment, the first and second tube segments have the same outside diameter dimension.
In a second aspect, the present application provides a guide wire tube assembly for interventional operation, including the guide wire tube and the guide wire for interventional operation that the first aspect provided, the guide wire wears to locate in the tube body, the guide wire with clearance distance between the first pipeline section inner wall is greater than with clearance distance between the second pipeline section inner wall.
In a third aspect, the present application provides a delivery system for interventional procedures, comprising the guide wire tube for interventional procedures provided in the first aspect; and the handle is connected with the proximal end of the guide wire tube.
As one embodiment, the interventional delivery system further comprises a guide head connected to the distal end of the tube body.
The technical scheme of the application has the following effects:
1. when the inner diameter of the first pipe section at the far end of the pipe body is larger than that of the second pipe section at the near end, the first pipe section is positioned at the far end of the pipe body due to the larger inner diameter of the first pipe section when the pipe body advances along the guide wire, so that a larger redundant gap exists between the first pipe section and the guide wire, the bent end of the pipe body is smoother, on the other hand, blood can circulate at the far end more smoothly, and the success rate of operation is improved; the inner diameter of the second pipe section is smaller and can be tightly matched with the guide wire, so that the pipe body can play a role in stopping bleeding at the proximal end, the guide wire pipe can simultaneously have hemostatic property and smoothness, the problem that the conveying system withdraws the guide wire synchronous belt out when an instrument is exchanged in an operation is solved, and the guide wire is effectively reserved, so that the damage to a man by the secondary transvalve of the guide wire is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a guidewire tube according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of a guidewire tube provided in various embodiments of the present application;
FIG. 3 is a schematic cross-sectional view of a guidewire tube according to yet another embodiment of the present application;
FIG. 4 is a schematic view of a guidewire tube according to another embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a conveying system according to an embodiment of the present application.
Icon: 1-a tube body; 11-a first pipe section; 111-a tapered section; 12-a guide head; 13-a second pipe section; 131-a diverging section; 14-a transitional connection section; 2-a guide wire; 3-a handle; 4-an outer sleeve; 5-a first inner tube.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the term "distal" means an end of components in the delivery system near heart tissue, and "proximal" means an end of the delivery system near an operator, and the terms "first", "second", and the like are used merely to distinguish the description and are not to be construed as indicating or implying relative importance.
In a first aspect, embodiments of the present application provide a guide wire tube for interventional procedures, where the guide wire tube has improved pusher property, bending flexibility and shape memory, and at the same time, the guide wire tube can improve smoothness at a bending portion at a distal end, and at a proximal end, the guide wire tube can further have hemostasis properties, thereby improving safety of the procedure.
As shown in fig. 2 and 3, the wire guide tube comprises a tube body 1, the tube body 1 comprises a first tube section 11 at the distal end and a second tube section 13 at the proximal end, the inner diameter dimension of the first tube section 11 is larger than the inner diameter dimension of the second tube section 13, so that when the wire guide tube runs along the wire guide 2, a redundant gap exists between the first tube section 11 and the wire guide 2, and particularly when the first tube section 11 passes through a bending position, the friction force between the first tube section 11 and the wire guide 2 is smaller, and the first tube section 11 and the wire guide 2 are smoother, and meanwhile, the smoothness of blood is improved; the second pipeline section 13 need not through crooked position, and the second pipeline section 13 of proximal end and seal wire 2 close fit play hemostatic effect, when the apparatus was changed in the art, can reduce the conveying system and withdraw from the problem that the guide wire 2 was also brought out by the way, effectively remain seal wire 2 in the human body, improve operation safety, make the seal wire pipe of this application embodiment can possess smoothness, logical bloodness and hemostasis.
As shown in fig. 1, as an embodiment, the catheter for interventional operation further includes a transition connection section 14, two ends of the transition connection section 14 are respectively connected with the first tube section 11 and the second tube section 13, and an inner diameter dimension of the transition connection section 14 is gradually reduced from the first tube section 11 toward the second tube section 13, so that the first tube section 11 and the second tube section 13 are communicated, and by setting the transition connection section 14, the first tube section 11 and the second tube section 13 are connected conveniently, so that an outer surface of the catheter is smoother, and a problem of scratching a blood vessel wall is reduced.
Alternatively, the guidewire tube may be a metal tube, such as a nitinol tube or a wire-rope tube, or the like.
Optionally, two ends of the transition connection section 14 are respectively connected with the first pipe section 11 and the second pipe section 13 by means of laser welding, so as to improve the structural stability of the pipe body 1.
As shown in fig. 2 and 3, as an embodiment, the first pipe section 11 is fixedly connected with the second pipe section 13, that is, the first pipe section 11 and the second pipe section 13 are welded by laser, so that welding points are reduced, the structural stability of the pipe body 1 is improved, in addition, other transitional connection parts are reduced, and the cost can be reduced.
As shown in fig. 2, as an embodiment, the first tube section 11 includes a tapered section 111 facing the distal end of the second tube section 13, the tapered section 111 is connected to the second tube section 13, the inner diameter dimension of the tapered section 111 is gradually reduced from the first tube section 11 toward the second tube section 13, the first tube section 11 and the second tube section 13 are connected by providing a tapered section 111 at one end of the first tube section 11, meanwhile, the tapered section 111 enables the inner diameters of the first tube section 11 and the second tube section 13 to be communicated, the guide wire tube is facilitated to travel along the guide wire 2, in addition, the connection position of the second tube section 13 and the tapered section 111 is also enabled to play a role in hemostasis, and the tapered section 111 and the first tube section 11 are both enabled to play a role in blood circulation.
As shown in fig. 3, as a parallel embodiment, the second tube section 13 includes a diverging section 131 toward the proximal end of the first tube section 11, the diverging section 131 is connected to the first tube section 11, the inner diameter of the diverging section 131 is gradually widened from the second tube section 13 toward the first tube section 11, the first tube section 11 and the second tube section 13 are connected by providing a diverging section 131 at one end of the second tube section 13, and at the same time, the diverging section 131 enables the inner diameters of the first tube section 11 and the second tube section 13 to be communicated, so that the guide wire tube can travel along the guide wire 2, and in addition, the first tube section 11 and the diverging section 131 play a role in dredging blood vessels, and the second tube section 13 plays a role in stopping bleeding.
As shown in fig. 4, as an embodiment, the first tube section 11 and the second tube section 13 are integrally formed, so that the structure of the guide wire tube is more stable.
Alternatively, a composite braided tube may be used as the guidewire tube.
As shown in fig. 1, as an embodiment, the outer diameters of the first tube section 11 and the second tube section 13 are the same, so that the outer surface of the guide wire tube is flat, the blood flow is smoother, and the problem that the outer surface of the guide wire tube scratches the blood vessel wall is reduced.
In addition, the difference of the thickness of the outer surface of the guide wire tube is avoided, so that the blood in the blood vessel is easy to be blocked, and the blood flow is easy to be influenced.
Meanwhile, the first pipe section 11 and the second pipe section 13 of the wire guide pipe have the same outer diameter size, so that the machining is convenient, and the production cost is reduced.
In a second aspect, an embodiment of the present application provides a guide wire assembly for interventional surgery, including the guide wire tube for interventional surgery provided in the first aspect, further including a guide wire 2, the guide wire tube advancing along the guide wire 2, a gap distance between the guide wire 2 and an inner wall of the first tube section 11 is greater than a gap distance between the guide wire and an inner wall of the second tube section 13, so that the guide wire assembly encounters a curved position when being inserted into a human body, the cooperation between the guide wire tube and the guide wire 2 is smoother, and blood circulation is also facilitated, and meanwhile, at a proximal end of the guide wire tube, the second tube section 13 can be tightly matched with the guide wire 2 to play a role in hemostasis; when the instrument exchange is performed in the operation, the clearance distance between the guide wire 2 and the inner wall of the first pipe section 11 is larger, the friction force between the guide wire 2 and the first pipe section 11 is smaller, the problem that the conveying system withdraws to bring out the guide wire 2 synchronously is solved, the guide wire 2 is effectively reserved, and the damage to the human body caused by secondary valve crossing of the guide wire 2 is prevented.
As shown in fig. 5, in a third aspect, an embodiment of the present application provides a delivery system for interventional procedures, including the guide wire tube for interventional procedures provided in the first aspect; the surgical operation device also comprises a handle 3, wherein the handle 3 is connected with the proximal end of the guide wire tube, the guide wire 2 is firstly inserted into a blood vessel during the surgical operation, and the guide wire tube is inserted into the blood vessel through the guide wire 2.
Alternatively, the guidewire tube may be adhesively secured in a proximal position within the handle 3.
As shown in fig. 1 to 5, as an embodiment, the delivery system for interventional operation further includes a guide head 12, where the guide head 12 is connected to the distal end of the tube body 1, and the guide head 12 has a tapered structure, and the end of the guide head 12 has a streamlined shape, so that the inner wall of a blood vessel can be prevented from being scratched, and the whole guide wire tube can be advantageously guided to advance along the blood vessel.
As shown in fig. 5, the delivery system may alternatively comprise an outer sleeve 4 connected to the handle 3, an inner tube assembly extending within the outer sleeve 4 and movable relative to the outer sleeve 4; the inner tube assembly comprises a first inner tube 5 and a second inner tube extending within the first inner tube 5, within which a guidewire tube extends and is secured at one end to the position of the guide head 12 and at the other end to the proximal end of the handle 3. The outer sleeve 4 provides stable support for the inner tube assembly; the first inner tube 5 and the second inner tube are both connected with the handle 3, the outer sleeve 4 is sleeved on the periphery of the first inner tube 5, the first inner tube 5 is sleeved on the periphery of the second inner tube, the second inner tube extends in the first inner tube 5, the first inner tube 5 and the second inner tube extend in the outer sleeve 4 and can synchronously rotate relative to the periphery of the wire tube, a containing space for containing the heart valve prosthesis is arranged between the first inner tube 5 and the second inner tube, and when the first inner tube 5 and the second inner tube synchronously rotate relative to the periphery of the outer sleeve 4, the heart valve prosthesis is clamped by the first inner tube 5 and the second inner tube and synchronously rotates relative to the periphery of the wire tube so as to realize circumferential positioning of the heart valve prosthesis; after circumferential positioning of the heart valve prosthesis, the heart valve prosthesis is released to improve the accuracy of the delivery system to the implantation site of the heart valve prosthesis.
Optionally, the second inner tube is relatively fixed with the handle 3, a transmission member is arranged in the handle 3 and is fixedly connected with the first inner tube 5, and the transmission member can axially move relative to the handle 3 through clamping of the handle 3, so that the first inner tube 5 is driven to axially move relative to the second inner tube, and finally release and recovery of the valve are realized.
Optionally, a control mechanism is arranged on the handle 3 and can control the transmission member to move axially relative to the handle 3 in the handle 3.
Optionally, the handle 3 includes a housing, where the housing includes a first housing and a second housing, where the second housing can rotate circumferentially relative to the first housing, the outer sleeve 4 is fixedly connected with the first housing, the first inner tube 5 is fixedly connected with the second housing through a connecting piece, and the second housing can synchronously drive the first inner tube 5 to rotate relative to the second inner tube when rotating circumferentially relative to the first housing.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A guidewire tube for interventional procedures, comprising:
the catheter comprises a catheter body including a first distal segment and a second proximal segment, the first segment having an inner diameter dimension greater than an inner diameter dimension of the second segment.
2. The interventional catheter of claim 1, further comprising a transition section, wherein two ends of the transition section are connected to the first and second tube sections, respectively, and wherein an inner diameter of the transition section is tapered from the first tube section toward the second tube section.
3. The interventional catheter of claim 1, wherein the first tube segment is fixedly connected to the second tube segment.
4. The interventional catheter of claim 3, wherein the first tube section comprises a tapered section toward the distal end of the second tube section, the tapered section being connected to the second tube section, an inner diameter dimension of the tapered section being tapered from the first tube section toward the second tube section.
5. The interventional catheter of claim 3, wherein the second tube section comprises a diverging section toward the proximal end of the first tube section, the diverging section being connected to the first tube section, an inner diameter dimension of the diverging section being gradually expanded from the second tube section toward the first tube section.
6. The interventional catheter of claim 1, wherein the first and second catheter sections are integrally formed.
7. The interventional guidewire tube of any one of claims 1 to 6, wherein the first and second tube segments have the same outside diameter dimensions.
8. A guide wire tube assembly for interventional procedures, comprising the guide wire tube and guide wire for interventional procedures according to any one of claims 1 to 7, wherein the guide wire is inserted into the tube body, and a gap distance between the guide wire and an inner wall of the first tube section is larger than a gap distance between the guide wire and an inner wall of the second tube section.
9. A delivery system for interventional procedures, characterized by comprising a guide wire tube for interventional procedures according to any one of claims 1 to 7;
and the handle is connected with the proximal end of the guide wire tube.
10. The interventional delivery system of claim 9, further comprising a guide head coupled to the distal end of the tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410123825.6A CN117838386A (en) | 2024-01-29 | 2024-01-29 | Guide wire tube, assembly and conveying system for interventional operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410123825.6A CN117838386A (en) | 2024-01-29 | 2024-01-29 | Guide wire tube, assembly and conveying system for interventional operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117838386A true CN117838386A (en) | 2024-04-09 |
Family
ID=90532415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410123825.6A Pending CN117838386A (en) | 2024-01-29 | 2024-01-29 | Guide wire tube, assembly and conveying system for interventional operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117838386A (en) |
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2024
- 2024-01-29 CN CN202410123825.6A patent/CN117838386A/en active Pending
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