CN215386907U - Double-balloon catheter - Google Patents
Double-balloon catheter Download PDFInfo
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- CN215386907U CN215386907U CN202121533941.3U CN202121533941U CN215386907U CN 215386907 U CN215386907 U CN 215386907U CN 202121533941 U CN202121533941 U CN 202121533941U CN 215386907 U CN215386907 U CN 215386907U
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Abstract
The utility model provides a double-balloon catheter which comprises an inner balloon, an outer tube, an inner tube, a heating part and an electric treatment device, wherein the inner tube penetrates through the outer tube, the outer balloon is fixedly connected with the outer tube, the inner cavity of the outer balloon is communicated with the inner cavity of the outer tube, the inner balloon is fixedly connected with the inner tube, the inner cavity of the inner balloon is communicated with the inner cavity of the inner tube, the inner balloon is arranged in the outer balloon, the heating part is arranged in the inner balloon, and the electric treatment device is electrically connected with the heating part through a heating wire so as to provide a power supply for heating of the heating part.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a double-balloon catheter.
Background
A balloon catheter is understood to include a catheter and a balloon disposed on the catheter, whereby a medium may be introduced into the balloon through the catheter to inflate the balloon, and the inflated balloon may be used for dilatation or the like.
However, in the related art, the balloon catheter usually can only achieve expansion, and has a single function, which is difficult to satisfy the requirements of various medical and diagnostic activities, such as: minimally invasive endoscopic procedures, such as duodenal mucosal resurfacing, are aimed at removing the surface epithelium to allow subsequent epithelial regeneration and replacement to a more insulin sensitive state. This process replicates aspects of bariatric surgery and provides an attractive alternative to the treatment of metabolic disorders where ablation is required in addition to dilatation, which is difficult to meet with existing balloon catheters.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-balloon catheter, which aims to solve the problems that the function is single and the requirement for implementing ablation is difficult to meet.
The utility model provides a double-balloon catheter which comprises an inner balloon, an outer tube, an inner tube, a heating part and an electric treatment device, wherein the inner tube penetrates through the outer tube, the outer balloon is fixedly connected with the outer tube, the inner cavity of the outer balloon is communicated with the inner cavity of the outer tube, the inner balloon is fixedly connected with the inner tube, the inner cavity of the inner balloon is communicated with the inner cavity of the inner tube, the inner balloon is arranged in the outer balloon, the heating part is arranged in the inner balloon, and the electric treatment device is electrically connected with the heating part through a heating wire so as to provide a power supply for heating of the heating part.
Optionally, the inner balloon is annularly arranged on the outer side of the inner tube, the heating part comprises a heating coil fixed outside the inner tube, the heating coil is electrically connected with the heating wire, the heating wire penetrates through a gap between the outer tube and the inner tube, the heating wire extends out of one end of the inner balloon far away from the inner tube and is electrically connected with the electric processing device, and the outer balloon is arranged at one end of the outer tube.
Optionally, the double-balloon catheter further comprises a temperature detection portion, the temperature detection portion extends to the outer surface of the outer balloon, and the temperature detection portion is further electrically connected with the electric processing device to feed back detected temperature information to the electric processing device.
Optionally, the temperature detection portion includes a thermocouple wire, one end of the thermocouple wire is disposed on the outer surface of the straight section of the outer balloon, the thermocouple wire passes through a gap between the outer tube and the inner tube, and the other end of the thermocouple wire is electrically connected to the electrical processing device.
Optionally, the double-balloon catheter further includes a connecting member, a first end of the connecting member is directly or indirectly connected to an end of the outer tube far away from the outer balloon, a second end of the connecting member is connected to the electric processing device, a main channel is arranged in the connecting member, the main channel is located between the first end and the second end of the connecting member, and the inner tube passes through the main channel.
Optionally, the double-balloon catheter further includes a stress diffusion tube, the stress diffusion tube is connected to the connecting member, and the stress diffusion tube wraps an end of the outer tube away from the outer balloon and a first end of the connecting member.
Optionally, a first injection portion for injecting heated water is disposed on a side wall of the connecting member, the inner tube is provided with a liquid inlet, a heated water injection channel is disposed in the first injection portion, the heated water injection channel is communicated to the liquid inlet and is communicated to the inner cavity of the inner tube and the inner balloon through the liquid inlet, so that: the heating water injected through the heating water injection channel can enter the inner cavity of the inner balloon.
Optionally, a second injection portion for injecting cooling water is disposed on a side wall of the connecting member, a cooling water injection passage is disposed in the second injection portion, and the cooling water injection passage is communicated with the main passage and communicated with an inner cavity of the outer balloon through the main passage, so that: the cooling water injected through the cooling water injection channel can enter the inner cavity of the outer balloon.
Optionally, a sealing part is further arranged in the connecting piece, the sealing part is arranged on the outer side of the inner pipe, and a channel port in the main channel, which is communicated with the cooling water injection channel, is separated from the liquid inlet by the sealing part.
Optionally, the first injection part and the second injection part are respectively connected with a two-way luer connector.
In the double-balloon catheter provided by the utility model, the outer heating can be realized based on the inner balloon in the outer balloon and the heating part in the inner balloon, and further, the inner balloon can be taken as a heating balloon, in the using process, for example, minimally invasive endoscopic surgery such as duodenal mucosa replating and the like is taken as an example, the temperature of a medium (such as liquid) in the double-balloon catheter can be heated to reach the temperature required by thermal ablation of epidermis, and further, the thermal ablation is realized by utilizing the heat conduction of the inner balloon to the outside. Meanwhile, the inner balloon can be protected based on the outer balloon, and in a further scheme, the cooling water can be injected based on the outer balloon and the outer catheter, so that the requirement of rapid cooling is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a first schematic structural view of a double-balloon catheter in accordance with an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a double-balloon catheter in an embodiment of the utility model.
Description of reference numerals:
1-an inner balloon;
2-outer balloon;
3-heating part;
301-heating coils;
302-a heating coil;
4-inner tube;
401-a liquid inlet;
402-a liquid inlet;
5-an outer tube;
501-tip;
6-heating wire;
601-a first heater wire;
602-a second heater wire;
7-an electrical treatment device;
8-a connector;
801-main channel;
802-second implant;
803 — first injection part;
9-a stress diffusion tube;
10-a temperature detection section;
11-a sealing part;
12-two-way luer fitting;
13-two-way luer fitting.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "upper surface", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, "a plurality" means a plurality, e.g., two, three, four, etc., unless specifically limited otherwise.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and the like are to be construed broadly, e.g., as meaning fixedly attached, detachably attached, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Referring to fig. 1, the double-balloon catheter includes an inner balloon 1, an outer balloon 2, an outer tube 5, an inner tube 4, a heating portion 3, and an electrical processing device 7.
The inner tube 4 passes through the outer tube 5; furthermore, part or all of the inner tube 4 may be located inside the outer tube 5, and a corresponding gap may be formed between the inner tube 4 and the outer tube 5, through which gap a medium (e.g. a liquid or a gas) inside the outer tube 5 may flow.
Outer sacculus 2 fixed connection outer tube 5, just the inner chamber intercommunication of outer sacculus 2 the inner chamber of outer tube 5, and then, corresponding medium (for example liquid or gas) can circulate between the inner chamber of outer sacculus 2 and the inner chamber of outer tube 5, and for realizing the circulation, outer tube 5 can be equipped with corresponding intercommunication mouth, and the inner chamber of outer sacculus 2 communicates the inner chamber of outer tube 5 through this intercommunication mouth. In one example, the outer balloon 2 may be disposed at one end of the outer tube 5 (which may be understood as the distal end of the outer tube 5).
The inner balloon 1 is fixedly connected with the inner tube 4, and the inner cavity of the inner balloon 1 is communicated with the inner cavity of the inner tube 4. Furthermore, a corresponding medium (e.g. a liquid or a gas) may flow between the inner lumen of the inner balloon 1 and the inner lumen of the inner tube 4, and for this purpose the inner tube 4 may be provided with a corresponding communication opening (e.g. a liquid inlet 401) through which the inner lumen of the inner balloon 1 communicates with the inner lumen of the inner tube 4. In one example, the inner balloon 1 may be disposed around the outside of the inner tube, and in particular may be disposed adjacent to the distal end of the inner tube 4 (i.e., adjacent to the tip 501 of the inner tube 4).
In addition, the outer balloon 2 and the inner balloon 1 are both connected and sealed with the inner tube 4 at the far end of the balloons. The outer saccule 2 and the outer tube 5 are connected and sealed at the near end of the saccule, and the inner saccule 1 and the inner tube 4 are connected and sealed at the near end of the saccule.
The inner balloon 1 is arranged in the outer balloon 2, specifically, the diameter of the inner balloon 1 can be larger than that of the outer balloon 2, and the compliance of the outer balloon 2 is higher than that of the inner balloon 1. The length of the outer balloon 2 is larger than that of the inner balloon 1, and the length of the inner balloon 1 can be larger than 2 cm.
Wherein, after the inner balloon 1 is expanded, the heat can be conducted to the outside through the outer balloon 2.
The heating portion 3 is provided in the inner balloon 1, and the electric processing device 7 is electrically connected to the heating portion 3 via a heating wire 6 to supply power to the heating portion, and for example, when heating is required, the electric processing device 7 can output an electric signal to heat the heating portion 3, and any member that can generate heat based on the electric signal can be understood as the heating portion 3 according to the embodiment of the present invention.
In one embodiment, referring to fig. 2, the heating portion 3 includes a heating coil fixed outside the inner tube 4, the heating coil is electrically connected to the heating wire, the heating wire passes through a gap between the outer tube and the inner tube, the heating wire 6 extends out from one end of the inner tube far away from the inner balloon 1 and is electrically connected to the electrical processing device 7, and the outer balloon 2 is disposed at one end of the outer tube 5.
In a specific example, the heating coils include a heating coil 301 near the distal end of the inner balloon and a heating coil 302 near the proximal end of the inner balloon, wherein the heating coils may include a first heating wire 601 and a second heating wire 602, the heating coils 301 and 302 may be connected in series between the first heating wire 601 and the second heating wire 602, and meanwhile, the ends of the first heating wire 601 and the second heating wire 602, which are not connected with the heating coils, may be connected to the electrical processing device 7, thereby forming a corresponding electrical circuit. In addition, the heating coil can be fixedly wound on the outer side of the inner tube 1, and can also be fixed in the inner cavity of the inner balloon in other modes.
The inner balloon 1 and the outer balloon 2 may be any structures capable of expanding under the filling of an internal medium, and the balloon walls of the inner balloon 1 and the outer balloon 2 may have certain heat conduction capacity.
Based on the inner balloon in the outer balloon and the heating part in the inner balloon, external heating can be realized, and further, the inner balloon can be regarded as a heating balloon, in the using process, taking minimally invasive endoscopic surgeries such as duodenal mucosa replating and the like as examples, the temperature of a medium (such as liquid) in the heating balloon can be heated to reach the temperature required by thermal ablation of epidermis, and further, the thermal ablation is realized by utilizing the heat conduction of the inner balloon to the outside. Meanwhile, the inner balloon can be protected based on the outer balloon.
In one embodiment, referring to fig. 2, the double-balloon catheter further includes a temperature detection portion 10, the temperature detection portion 10 extends to the outer surface of the outer balloon 2, and the temperature detection portion 10 is further electrically connected to the electric processing device 7, so as to feed back detected temperature information (for example, information representing the temperature of the outer surface of the outer balloon 2) to the electric processing device 7.
The electric processing device 7 may control heating of the heating portion based on the detected temperature information, or may feed back the detected temperature information to a control device connected thereto, and further, control heating of the heating portion under the control of the control device (for example, control whether or not to output an electric signal to perform heating, and further, for example, control what intensity to perform heating).
Further, the temperature detection portion 10 includes a thermocouple wire, one end of the thermocouple wire is disposed on the outer surface of the straight section of the outer balloon 2, the thermocouple wire passes through the gap between the outer tube 5 and the inner tube 4, and the other end of the thermocouple wire is electrically connected to the electrical processing device 7.
Specifically, one end of the thermocouple wire is fixed on the surface of the straight section of the outer balloon 2, and the other end of the thermocouple wire penetrates through the outer tube part close to the balloon, passes through the inside of the connecting piece in parallel with the inner tube 4 and is connected to the electric processing device 7.
In the above scheme, the temperature detection part 10 can realize temperature detection and feedback, so as to provide a reference basis for heating control, thereby ensuring the controllability of the heating process.
In one embodiment, please refer to fig. 2, the double-balloon catheter further includes a connecting member 8, a first end of the connecting member 8 is directly or indirectly connected to an end of the outer tube 5 away from the outer balloon 2 (i.e., a proximal end of the outer tube 5), a second end of the connecting member 8 is connected to the electrical processing device 7, a main channel 801 is disposed in the connecting member 8, the main channel 801 is located between the first end and the second end of the connecting member 8, and the inner tube 4 passes through the main channel 801.
In one embodiment, the double-balloon catheter further comprises a stress diffusion tube 9, the stress diffusion tube 9 is connected to the connecting member 8, and the stress diffusion tube 9 wraps an end of the outer tube 5 far away from the outer balloon 2 (i.e. a proximal end of the outer tube 5) and a first end of the connecting member 8. Wherein, the size at stress diffusion tube 9 both ends can be suitable for with the cooperation of outer tube 5 and connecting piece 8, realize the close fit of three, realize the stress cushioning effect, and is specific, the inner wall of stress diffusion tube 9 can be respectively with the outer wall of outer tube 5 to and the outer wall laminating of connecting piece 8.
In one embodiment, referring to fig. 2, a first injection portion 803 for injecting heated water is disposed on a side wall of the connecting member 8, the inner tube 4 is disposed with a liquid inlet 402, a heated water injection channel is disposed in the first injection portion 803, the heated water injection channel is connected to the liquid inlet 402 and is connected to the inner tube 4 and the inner cavity of the inner balloon 1 through the liquid inlet 402, so that: the heating water injected through the heating water injection passage can enter the inner cavity of the inner balloon 1. Wherein the first injection portion 803 may be perpendicular to a sidewall of the connection member 8.
In one embodiment, referring to fig. 2, a second injection portion 802 for injecting cooling water is disposed on a side wall of the connecting member 8, a cooling water injection channel is disposed in the second injection portion 802, and the cooling water injection channel is communicated with the main channel 801 and communicated to the inner cavity of the outer balloon 2 through the main channel 801, so that: the cooling water injected through the cooling water injection passage can enter the inner cavity of the outer balloon 2. Wherein the second injection portion 802 may be inclined to a sidewall of the connection member 8.
In the above scheme, based on the outer balloon and the outer catheter, the injection of cooling water can be realized, so that the requirement of rapid cooling is met.
It can be seen that both the heating water and the cooling water need to pass through the main channel, and further, the circulation space needs to be separated, in order to achieve the purpose, in one embodiment, a sealing portion 11 is further disposed in the connecting member 8, the sealing portion 11 is disposed outside the inner tube 4, and a channel port in the main channel 801, which communicates with the cooling water injection channel, is separated from the liquid inlet 402 by the sealing portion 11. The sealing part 11 may be of any structure and material capable of achieving liquid-tight separation, and may be integrated with the connector or assembled together, and in any form, it is only necessary to separate the liquid, without departing from the scope of the embodiment of the present invention.
In addition, the connecting piece 8 and the electric processing device 7 are also connected in a sealing way, further, liquid in the connecting piece 8 cannot enter the electric processing device, the connecting piece 8 is connected with the outer pipe 5 in a sealing way, and the tail end length of the outer pipe is stopped in the connecting piece and does not reach a sealing fixed section (namely a sealing part 11).
In a specific example, the first injection part 803 and the second injection part 802 are respectively connected to a two-way luer connector, wherein the first injection part 803 is connected to the two-way luer connector 13, and the second injection part 802 is connected to the two-way luer connector 12.
In addition, the heating water and the cooling water are understood to be water for heating and water for cooling, and the temperature of the heating water is generally higher than that of the cooling water, but the temperature of the heating water may not be higher than that of the cooling water before heating.
Based on feeding and heating of heating water, hydrothermal ablation can be realized, so that the method is applied to minimally invasive endoscopic surgery using hydrothermal ablation
In using the double balloon catheter of the present specific example, the double balloon catheter is placed for mucosal lifting and ablation. In a specific example, the ablation cycle is initiated by a hot water cycle to complete ablation of the lifting tissue. The balloon is then deflated and the catheter is advanced distally for the next treatment session. The process of dilation, ablation and repositioning is repeated until the desired length is reached for treatment of the duodenum (about 10 cm). The reusable electromechanical console provides heating functions for submucosal lifting and hydrothermal ablation steps, and can monitor balloon surface temperature.
In the description herein, reference to the terms "an implementation," "an embodiment," "a specific implementation," "an example" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a double-balloon catheter, its characterized in that, includes interior sacculus, outer tube, inner tube, heating portion and electric processing apparatus, the inner tube passes the outer tube, outer sacculus fixed connection the outer tube, just the inner chamber intercommunication of outer sacculus the inner chamber of outer tube, interior sacculus fixed connection the inner tube, just the inner chamber intercommunication of interior sacculus the inner chamber of inner tube, interior sacculus is located in the outer sacculus, the heating portion is located in the interior sacculus, electric processing apparatus passes through the heater wire electricity and connects the heating portion, for the heating of heating portion provides the power, the length of interior sacculus is less than the length of outer sacculus.
2. The double-balloon catheter according to claim 1, wherein the inner balloon is annularly arranged on the outer side of the inner tube, the heating part comprises a heating coil fixed outside the inner tube, the heating coil is electrically connected with the heating wire, the heating wire penetrates through a gap between the outer tube and the inner tube, the heating wire extends out of one end of the inner tube far away from the inner balloon and is electrically connected with the electric processing device, and the outer balloon is arranged at one end of the outer tube.
3. The double-balloon catheter according to claim 1, further comprising a temperature detection portion extending to an outer surface of the outer balloon, the temperature detection portion further electrically connected to the electrical processing device to feed back detected temperature information to the electrical processing device.
4. The double-balloon catheter according to claim 3, wherein the temperature detection portion includes a thermocouple wire, one end of the thermocouple wire is disposed on an outer surface of the flat section of the outer balloon, the thermocouple wire passes through a gap between the outer tube and the inner tube, and the other end of the thermocouple wire is electrically connected to the electrical processing device.
5. The double-balloon catheter according to any one of claims 1 to 4, further comprising a connector, a first end of the connector being directly or indirectly connected to an end of the outer tube remote from the outer balloon, a second end of the connector being connected to the electrical processing device, a main channel being provided in the connector between the first and second ends of the connector, the inner tube passing through the main channel.
6. The dual balloon catheter of claim 5, further comprising a stress diffusion tube coupled to the connector, the stress diffusion tube wrapping an end of the outer tube distal to the outer balloon and a first end of the connector.
7. The double-balloon catheter according to claim 5, wherein the side wall of the connecting member is provided with a first injection portion for injecting heated water, the inner tube is provided with a liquid inlet, a heated water injection passage is arranged in the first injection portion, and the heated water injection passage is communicated to the liquid inlet and communicated to the inner cavities of the inner tube and the inner balloon through the liquid inlet, so that: the heating water injected through the heating water injection channel can enter the inner cavity of the inner balloon.
8. The double-balloon catheter according to claim 7, wherein the side wall of the connecting member is provided with a second injection portion for injecting cooling water, and a cooling water injection passage is provided in the second injection portion, and communicates with the main passage and the inner lumen of the outer balloon through the main passage, so that: the cooling water injected through the cooling water injection channel can enter the inner cavity of the outer balloon.
9. The double-balloon catheter as claimed in claim 8, wherein a sealing portion is further provided in the connecting member, the sealing portion is provided outside the inner tube, and a passage port of the main passage communicating with the cooling water injection passage is separated from the liquid inlet by the sealing portion.
10. The double-balloon catheter according to claim 8, wherein the first injection part and the second injection part are respectively connected with a two-way luer connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121533941.3U CN215386907U (en) | 2021-07-06 | 2021-07-06 | Double-balloon catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121533941.3U CN215386907U (en) | 2021-07-06 | 2021-07-06 | Double-balloon catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215386907U true CN215386907U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121533941.3U Active CN215386907U (en) | 2021-07-06 | 2021-07-06 | Double-balloon catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215386907U (en) |
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2021
- 2021-07-06 CN CN202121533941.3U patent/CN215386907U/en active Active
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