CN114259278A - Choledochoscope lithotomy balloon and device - Google Patents
Choledochoscope lithotomy balloon and device Download PDFInfo
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- CN114259278A CN114259278A CN202210078707.9A CN202210078707A CN114259278A CN 114259278 A CN114259278 A CN 114259278A CN 202210078707 A CN202210078707 A CN 202210078707A CN 114259278 A CN114259278 A CN 114259278A
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- choledochoscope
- expansion cavity
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Abstract
The invention provides a choledochoscope lithotomy balloon and a device, and relates to the technical field of medical equipment, wherein the choledochoscope lithotomy balloon comprises a balloon catheter and a balloon body; the balloon body is provided with an opening end, the opening end is hermetically connected with the outer surface of the balloon catheter, and an expansion cavity is formed between the balloon body and the outer surface of the balloon catheter; the end surface of the balloon catheter is positioned in the expansion cavity, and the balloon catheter is used for discharging gas or liquid in the gas-liquid device into the expansion cavity. In the choledochoscope lithotomy balloon provided by the invention, only one open end of the balloon body is hermetically connected with the outer surface of the balloon catheter, in the expansion process of the balloon body, the end surface of the balloon catheter is positioned in the expansion cavity, the end part of the expansion cavity far away from the open end is not limited, the balloon body can adjust the self-expansion direction until the expansion cavity is filled with gas or liquid, and the problem of eccentricity of the conventional balloon catheter is effectively avoided; in addition, the balloon body can have a larger length size, and the expansion effect is better.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a choledochoscope lower calculus removal balloon and a device.
Background
Gallstones are diseases in the biliary tract including gallstones or gallstones in the hepatobiliary tract. Mainly comprises cholecystolithiasis, common bile duct lithiasis and hepatolithiasis, wherein the common bile duct lithiasis and hepatolithiasis have more clinical treatment means and mature technology, and the cholecystolithiasis and hepatolithiasis can be taken from laparoscope to endoscope. For cholecystolithiasis and intrahepatic bile duct lithiasis, the treatment means is relatively limited due to the structural limitation of the cystic duct and the intrahepatic bile duct.
At present, the main treatment means is laparoscopic excision or percutaneous hepatobiliary tract lithotripsy, and a few intrahepatic calculi can be removed by ERCP (percutaneous transluminal cholecystoscopy). Along with the development of scope technique, it can be internal through the mouth entering to have appeared gradually through a mouthful cholangioscope, carries out the visual stone of getting of noninvasive, nevertheless in the stone device is got under current cholangioscope, and the sacculus blows up the back and easily takes place off-centre, is unfavorable for going on of operation.
Disclosure of Invention
The invention aims to provide a choledochoscope lithotomy balloon and a device, which can effectively avoid the problem of eccentricity of a conventional balloon catheter.
In order to achieve the purpose, the invention provides the following technical scheme:
in a first aspect, the invention provides a choledochoscope lithotomy balloon, which comprises a balloon catheter and a balloon body;
the balloon body is provided with an opening end which is connected with the outer surface of the balloon catheter in a sealing way, and an expansion cavity is formed between the balloon body and the outer surface of the balloon catheter;
the end surface of the balloon catheter is positioned in the expansion cavity, and the balloon catheter is used for discharging gas or liquid in the gas-liquid device into the expansion cavity.
Furthermore, the balloon catheter comprises a reducing section positioned at the tail end, the end face of the reducing section is positioned in the expansion cavity, the outer diameter of the reducing section is smaller than that of other sections of the balloon catheter, the balloon body is sleeved outside the reducing section and forms an expansion cavity with the outer surface of the reducing section, and the opening end is connected to the reducing section and/or other sections of the balloon catheter in a sealing mode.
Further, the open end is bonded to the reducer section and other sections of the balloon catheter.
Further, the outer diameter of the part of the balloon catheter used for inserting the forceps channel is less than 2 mm.
Furthermore, the reducing section is provided with an air inlet and outlet hole, and two ends of the air inlet and outlet hole are respectively communicated with the expansion cavity and the inner cavity of the reducing section;
and a reducing mouth or a rounded corner is arranged at the tail end of the reducing section.
Further, the other section of the balloon catheter comprises a connecting section connected with the reducing section.
Further, the outer surface of the connecting section is marked with scales along the length direction of the connecting section.
Further, the medical balloon catheter also comprises a guide wire extending into the balloon catheter, and the guide wire is used for supporting and guiding the balloon catheter.
Further, the guidewire extends into the tapered section.
In a second aspect, the invention further provides a choledochoscope lithotomy device, which comprises a handle, a valve and the choledochoscope lithotomy balloon in the above scheme, wherein one end of the balloon catheter, which is away from the balloon body, is connected with the handle, the valve is installed at the end part of the handle, and the valve is provided with an inlet which is used for discharging gas or liquid in the gas-liquid device into the expansion cavity.
The choledochoscope lithotomy balloon and the device provided by the invention have the following beneficial effects:
compared with the prior art, in the choledochoscope lithotomy balloon provided by the first aspect of the invention, because only one open end of the balloon body is hermetically connected with the outer surface of the balloon catheter, in the expansion process of the balloon body, the end surface of the balloon catheter is positioned in the expansion cavity, the end part of the expansion cavity far away from the open end is not limited, the balloon body can adjust the self-expansion direction until gas or liquid is filled in the expansion cavity, and the problem of eccentricity of the conventional balloon catheter is effectively avoided; in addition, the balloon body can have a larger length size, and the expansion effect is better.
Compared with the prior art, the choledochoscope lithotomy device provided by the second aspect of the invention can realize non-invasive lithotomy, and the balloon catheter does not have the eccentric problem after the balloon body is expanded, so that the smooth operation is ensured.
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 some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a choledochoscope lithotomy device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a choledochoscope lithotomy balloon provided in an embodiment of the present invention;
fig. 3 is a schematic structural view of the balloon body provided by the embodiment of the present invention after being inflated.
Icon: 1-balloon catheters; 11-a variable diameter section; 111-air inlet and outlet; 12-a connecting segment; 2-balloon body; 21-open end; 3-guide wire; 4-a handle; 5-a valve; 51-inlet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a schematic structural diagram of a choledochoscope lithotomy device according to an embodiment of the present invention; fig. 2 is a schematic structural view of a choledochoscope lithotomy balloon provided in an embodiment of the present invention; fig. 3 is a schematic diagram of the inflated balloon body of fig. 3 according to an embodiment of the present invention.
An embodiment of the first aspect of the present invention is to provide a choledochoscope lithotomy balloon, as shown in fig. 1 and 2, including a balloon catheter 1 and a balloon body 2; the balloon body 2 is provided with an opening end 21, the opening end 21 is connected with the outer surface of the balloon catheter 1 in a sealing way, and an expansion cavity is formed between the balloon body 2 and the outer surface of the balloon catheter 1; the end surface of the balloon catheter 1 is positioned in the expansion cavity, and the balloon catheter 1 is used for discharging gas or liquid in the gas-liquid device into the expansion cavity.
When the choledochoscope lithotomy balloon is used, the gas-liquid device flushes gas or liquid into the balloon catheter 1, the gas or the liquid enters the expansion cavity from the end part of the balloon catheter 1, as shown in fig. 3, the balloon body 2 is gradually expanded, and as only one open end of the balloon body 2 is hermetically connected with the outer surface of the balloon catheter 1, the problem of eccentricity of the balloon catheter 1 cannot occur after expansion, the end surface of the balloon catheter 1 is positioned in the expansion cavity, the length of the balloon catheter 1 coated by the balloon body 2 can be designed to be longer, and the expansion effect is better.
The structure of the balloon catheter 1 will be specifically described below:
in some embodiments, as shown in fig. 2, the balloon catheter 1 includes a reducing section 11 at the end, the end surface of the reducing section 11 is located in the inflation cavity, the outer diameter of the reducing section 11 is smaller than the outer diameter of other sections of the balloon catheter, the balloon body 2 is sleeved outside the reducing section 11 and forms an inflation cavity with the outer surface of the reducing section 11, and the open end 21 can be hermetically connected to the reducing section 11, the other sections of the balloon catheter, the reducing section 11 and the other sections of the balloon catheter.
Note that, since the variable-diameter section 11 is located at the distal end of the balloon catheter 1, the end surface of the variable-diameter section 11 is the end surface of the balloon catheter 1.
In the above embodiment, since the outer diameter of the diameter-variable section 11 is smaller than the outer diameters of the other sections of the balloon catheter, an installation space can be provided for the balloon body 2, and the outer diameter of the balloon body 2 can be more conveniently controlled during processing.
In at least one embodiment, as shown in fig. 2, to ensure the sealing between the open end 21 and the balloon catheter 1, the open end 21 is bonded to the tapered section 11 and the other sections of the balloon catheter.
Specifically, the inner surface of the open end 21 is bonded to the tapered section 11, and the end surface of the open end 21 is bonded to the end surface or the outer surface of the other section of the balloon catheter.
It should be noted that the outer diameter of the part of the balloon catheter 1 for inserting into the forceps channel is smaller than 2mm, so as to ensure that the outer diameter of the balloon body 2 is less than 2mm after installation, and the balloon catheter 1 can be smoothly inserted into the forceps channel, thereby meeting the requirements of the operation.
In some embodiments, as shown in fig. 2, the reducing section 11 is provided with an air inlet/outlet hole 111, and two ends of the air inlet/outlet hole 111 are respectively communicated with the expansion cavity and the inner cavity of the reducing section 11.
The air inlet/outlet hole 111 may be opened in a side wall of the variable diameter section 11 or may be disposed at a distal end of the variable diameter section 11.
In at least one embodiment, the air inlet and outlet holes 111 are opened in the side wall of the reducer section 11, so that the expansion cavity side cavity is directly communicated with the inside of the reducer section 11. When the balloon body 2 contracts, gas or liquid in the side cavity of the expansion cavity can enter the inside of the diameter-variable section 11 through the tail end of the diameter-variable section 11 and can enter the inside of the diameter-variable section 11 through the air inlet and outlet hole 111, so that the gas or liquid in the expansion cavity can be quickly discharged, and the residue of the gas or liquid in the expansion cavity is reduced.
The opening position of the air inlet/outlet hole 111 is not limited, that is, the air inlet/outlet hole 111 may be opened at the left end of the diameter-variable section 11, the right end of the diameter-variable section 11, or the middle of the diameter-variable section 11, facing the direction of fig. 2. The number of the air inlet/outlet holes 111 is not limited, and the number of the air inlet/outlet holes 111 may be one, or two, three, or the like.
In at least one embodiment, facing the direction of fig. 2, the air inlet/outlet hole 111 is opened in one and is opened at the left end of the reducer section 11.
In some embodiments, to prevent the end of the reducing section 11 from wearing away from the balloon body 2, the end of the reducing section 11 is provided with a necking or rounding angle so that the end of the reducing section 11 is in smooth contact with the balloon body 2.
In some embodiments, as shown in fig. 2, to facilitate the processing of the balloon catheter 1, the other sections of the balloon catheter include a connecting section 12 connected to a reducer section 11.
In the above embodiment, the balloon catheter 1 may include the independent variable diameter section 11 and the connecting section 12, and the variable diameter section 11 may be inserted into the connecting section 12 through a rubber body to ensure the sealing performance therebetween.
Of course, in some other embodiments, the reducer section 11 and the connecting section 12 may be of an integral structure, i.e., the reducer section 11 is directly extruded at the end of the connecting section 12 during processing.
A preferred embodiment of the aforementioned choledochoscope underscoring balloon is described in detail below:
in some embodiments, the outer surface of the connecting section 12 is marked with a scale along the length direction thereof, so that the distance of the balloon catheter 1 pushed out can be observed under a mirror.
In some embodiments, as shown in fig. 2, the balloon catheter further comprises a guide wire 3 extending into the balloon catheter 1, and the guide wire 3 is used for supporting and guiding the balloon catheter 1.
The guide wire 3 can be used as a supporting bone of the balloon catheter 1, so that the balloon catheter 1 is prevented from being bent in the operation process, and the smooth operation is ensured.
In addition to the above embodiment, as shown in fig. 2, the guide wire 3 extends into the tapered section 11 to guide and support the balloon catheter 1 as a whole.
The embodiment of the second aspect of the invention provides a choledochoscope lithotomy device, which comprises a handle 4, a valve 5 and the choledochoscope lithotomy balloon, wherein one end of the balloon catheter 1, which is away from the balloon body 2, is connected with the handle 4, the valve 5 is installed at the end part of the handle 4, and the valve 5 is provided with an inlet 51, and the inlet 51 is used for discharging gas or liquid in a gas-liquid device into an expansion cavity.
Specifically, when the balloon inflating device is used, the valve 5 is opened, gas or liquid in the gas-liquid device enters the balloon catheter 1 through the inlet 51 of the valve 5 and enters the balloon body 2 through the balloon catheter 1, the balloon body 2 is inflated, and the outer diameter of the balloon body 2 can be expanded to 6-18mm after the inflation.
It should be noted that the gas or liquid in the balloon catheter 1 enters the balloon body 2 through the end of the diameter-reduced section 11 in the balloon catheter 1. In the case that the variable-diameter section 11 is provided with the air inlet/outlet hole 111, the gas or liquid in the balloon catheter 1 can also enter the balloon body 2 through the air inlet/outlet hole 111.
Specifically, when the choledochoscope lithotomy balloon comprises the guide wire 3, one end of the guide wire 3 departing from the balloon body 2 is fixedly connected with the handle 4; a valve 5 is mounted at the end of the handle 4 facing away from the guide wire 3.
In summary, the choledochoscope lithotomy balloon and the device provided in the embodiments of the first and second aspects of the present invention have the following advantages:
1. the end face of the balloon catheter 1 is positioned in the expansion cavity, so that the end part of the expansion cavity far away from the opening end is not limited, the balloon body 2 can adjust the self expansion direction until the expansion cavity is filled with gas or liquid, and the problem of eccentricity of the conventional balloon catheter 1 is effectively avoided;
2. the balloon body 2 can have a larger length size, and the expansion effect is better;
3. the outer diameter of the reducing section 11 is smaller than the outer diameters of other sections of the balloon catheter, so that an installation space can be provided for the balloon body 2, the outer diameter size of the balloon body can be conveniently controlled during processing, and the outer diameter of the balloon body 2 is ensured to be below 2mm after installation;
4. the outer surface of the connecting section 12 is marked with scales along the length direction thereof, so that the distance pushed out by the balloon catheter 1 can be observed conveniently under a mirror.
5. The choledochoscope lithotomy balloon is provided with a guide wire 3, and the guide wire 3 can prevent the balloon catheter 1 from being bent in the operation process, so that the smooth operation is ensured;
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 invention 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. A choledochoscope lithotomy balloon is characterized by comprising a balloon catheter (1) and a balloon body (2);
the balloon body (2) is provided with an open end (21), the open end (21) is connected with the outer surface of the balloon catheter (1) in a sealing way, and an expansion cavity is formed between the balloon body (2) and the outer surface of the balloon catheter (1);
the end face of the balloon catheter (1) is positioned in the expansion cavity, and the balloon catheter (1) is used for discharging gas or liquid in the gas-liquid device into the expansion cavity.
2. The choledochoscope underscoring balloon according to claim 1, wherein the balloon catheter (1) comprises a reducing section (11) at a tail end, an end face of the reducing section (11) is located in the expansion cavity, the outer diameter of the reducing section (11) is smaller than the outer diameter of other sections of the balloon catheter, the balloon body (2) is sleeved outside the reducing section (11) and forms an expansion cavity with the outer surface of the reducing section (11), and the open end (21) is hermetically connected to the reducing section (11) and/or other sections of the balloon catheter.
3. The choledochoscope underscoring balloon of claim 2, wherein the open end (21) is bonded to the reducer section (11) and other sections of the balloon catheter.
4. The choledochoscope underscoring balloon as claimed in claim 2, wherein the balloon catheter (1) has a portion for insertion into a forceps channel with an outer diameter of less than 2 mm.
5. The choledochoscope lithotomy balloon according to claim 2, wherein the diameter-variable section (11) is provided with an air inlet and outlet (111), and two ends of the air inlet and outlet (111) are respectively communicated with the expansion cavity and the inner cavity of the diameter-variable section (11);
and a reducing mouth or a rounded corner is arranged at the tail end of the reducing section (11).
6. The choledochoscope underscoring balloon of claim 2, wherein the other section of the balloon catheter comprises a connecting section (12) connected with the reducer section (11).
7. The choledochoscope underscoring balloon as claimed in claim 6, wherein the outer surface of the connecting section (12) is marked with graduations along its length.
8. The choledochoscope underscoring balloon as claimed in claim 2, further comprising a guide wire (3) extending into the balloon catheter (1), the guide wire (3) being used for supporting and guiding the balloon catheter (1).
9. The choledochoscope underscoring balloon of claim 8, wherein the guide wire (3) extends into the reducer section (11).
10. A choledochoscope lithotomy device, characterized by comprising a handle (4), a valve (5) and the choledochoscope lithotomy balloon as claimed in any one of claims 1 to 9, wherein one end of the balloon catheter (1) departing from the balloon body (2) is connected with the handle (4), the valve (5) is mounted at the end of the handle (4), the valve (5) is provided with an inlet (51), and the inlet (51) is used for discharging gas or liquid in a gas-liquid device into the expansion cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210078707.9A CN114259278A (en) | 2022-01-24 | 2022-01-24 | Choledochoscope lithotomy balloon and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210078707.9A CN114259278A (en) | 2022-01-24 | 2022-01-24 | Choledochoscope lithotomy balloon and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114259278A true CN114259278A (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210078707.9A Pending CN114259278A (en) | 2022-01-24 | 2022-01-24 | Choledochoscope lithotomy balloon and device |
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| CN (1) | CN114259278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115844486A (en) * | 2022-11-22 | 2023-03-28 | 广州医科大学附属第一医院（广州呼吸中心） | Broken stone collecting device based on percutaneous nephrolithotomy |
-
2022
- 2022-01-24 CN CN202210078707.9A patent/CN114259278A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115844486A (en) * | 2022-11-22 | 2023-03-28 | 广州医科大学附属第一医院（广州呼吸中心） | Broken stone collecting device based on percutaneous nephrolithotomy |
| CN115844486B (en) * | 2022-11-22 | 2023-09-01 | 广州医科大学附属第一医院（广州呼吸中心） | Rubble collection device based on stone art is got to percutaneous nephroscope |
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