CN216294975U - Drainage device - Google Patents

Abstract

A drainage device comprises a drainage tube, a drainage tube and a drainage tube, wherein the drainage tube is provided with a drainage channel for playing a drainage role and a shaping cavity channel for containing a fluid medium; wherein, the drainage channel is arranged along the length direction of the drainage tube and penetrates through the drainage tube; the shaping cavity channel is arranged on the outer periphery side of the drainage channel and is distributed in an extending way along the length direction of the drainage tube; the drainage tube can be in a firm state when the shaping cavity is filled with and keeps the fluid medium, and the drainage tube can be in a free state when the fluid medium is discharged from the shaping cavity. Through filling fluid medium into moulding chamber way, can make the drainage tube that originally soft easily buckles become straight and be difficult for buckling, not only can smoothly reach appointed art district position for the end of drainage tube and provide the guarantee, improve convenience and the security of operation and use, also can set up the drainage tube of suitable length as required, make it can stretch into operation projects such as drainage, attraction, washing etc. of darker human inside execution through human positions such as oral cavity, anus.

Description

Drainage device

Technical Field

The utility model relates to the field of medical instruments, in particular to a drainage device.

Background

The drainage tube is a medical apparatus which is frequently used in clinical surgical operations, and in minimally invasive operations such as laparoscopic operations and other open operations, medical operations such as suction or irrigation are usually performed on an operation area by using the drainage tube, for example, blood, tissue fluid, pus, flushing fluid, exudate and other substances affecting the operation process in the operation area are sucked and removed by using the drainage tube, or sterile physiological saline and the like are injected into the operation area by using the drainage tube to flush dirt or instruments in the operation area.

At present, the tube body (or tube body) of a suction drainage tube, a flushing drainage tube and the like in the market is very soft; on one hand, when the tube body enters a human body and is blocked, the tube body is often pushed by an operator with greater strength, so that the drainage tube can reach an operation area, strong discomfort is easily caused to a patient, and secondary trauma is easily caused; on the other hand, the length of the drainage tube body is limited, so that the drainage tube cannot enter deeper inside of the body through the throat, anus and other parts of the patient to perform operations such as suction, flushing and the like.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a drainage device to improve the convenience and safety of operation and use.

In one embodiment there is provided a drainage device comprising a drain tube having:

the drainage channel is used for playing a drainage role and is arranged to penetrate through the drainage tube along the length direction of the drainage tube; and

the shaping cavity channel is used for containing a fluid medium, is arranged on the outer peripheral side of the drainage channel and extends and is distributed along the length direction of the drainage tube;

the drainage tube can be in a firm state when the shaping cavity is filled with and keeps the fluid medium, and the drainage tube can be in a free state when the fluid medium is discharged from the shaping cavity.

In one embodiment, the drain tube comprises:

a drainage main tube having a proximal end portion and a distal end portion opposite to each other along a length direction thereof, a tube body space of the drainage main tube being configured as a drainage channel; and

moulding rib, certainly the distal end portion that the drainage was responsible for extends the setting towards the proximal end portion direction, moulding rib adopts bar tape structure, moulding rib's profile edge is responsible for with the drainage peripheral surface sealing fixed, with moulding rib and drainage are responsible for between the structure formation moulding chamber way.

In one embodiment, the drain tube comprises:

a drainage main tube having a proximal end portion and a distal end portion opposite to each other along a length direction thereof, a tube body space of the drainage main tube being configured as a drainage channel; and

moulding rib, certainly the distal end portion that the drainage was responsible for extends the setting towards the proximal end portion direction, moulding rib adopts the cavity structure, moulding rib is responsible for the one side of being responsible for towards the drainage and the drainage is attached fixedly with the peripheral surface that the drainage was responsible for, moulding rib's cavity space is constructed into moulding chamber way.

In one embodiment, the drainage tube comprises a plurality of shaping ribs, the plurality of shaping ribs are arranged around the drainage main tube at intervals in parallel, so that a plurality of shaping cavities arranged at intervals in parallel are formed on the outer peripheral side of the drainage channel in a structural mode.

In one embodiment, the drainage tube further comprises a reinforcing rib ring for guiding the fluid medium to enter and exit the shaping cavity, the reinforcing rib ring is fixed on the outer peripheral surface of the distal end part of the main drainage tube part in a surrounding mode, and the plurality of shaping cavity channels are communicated with the reinforcing rib ring.

In one embodiment, the drainage system further comprises an anti-blocking balloon fixedly arranged at the proximal end part of the drainage main pipe; the anti-blocking balloon is in an expansion state capable of deforming towards the peripheral direction of the drainage main pipe when being filled with and maintaining a fluid medium; the anti-blocking balloon is also provided with a contraction state which can be deformed towards the inner peripheral direction of the drainage main pipe when the fluid medium is discharged.

In one embodiment, the anti-blocking balloon is provided with a balloon chamber for containing fluid medium, and the balloon chamber is distributed around the outer circumferential side of the drainage main pipe; or the anti-blocking balloon is provided with a plurality of balloon chambers for containing fluid media, and the balloon chambers are arranged around the drainage main pipe at intervals.

In one embodiment, the drainage tube is further provided with a balloon channel for guiding a fluid medium to enter and exit the anti-blocking balloon, the balloon channel is distributed on the outer peripheral side of the drainage channel, and the balloon channel extends from the distal end part of the drainage main tube to the anti-blocking balloon so as to be communicated with the anti-blocking balloon.

In one embodiment, further comprising an interface disposed at the distal end of the drainage main, the interface having:

the first interface is used for being externally connected with a fluid source and communicated with the shaping cavity channel so that the fluid source can drive a fluid medium to enter and exit the shaping cavity channel;

the first valve body is arranged at the first interface and is used for switching on and off the first interface so as to enable the fluid medium to be kept in the shaping cavity;

the second interface is used for being externally connected with a fluid source and communicated with the anti-blocking balloon, so that the fluid source can drive fluid media to enter and exit the anti-blocking balloon;

the second valve body is arranged at the second interface and is used for switching on and off the second interface so as to enable the fluid medium to be kept in the anti-blocking balloon; and

and the third interface is used for being externally connected with a drainage driving device and communicated with the drainage channel.

In one embodiment, the shaping ribs and the anti-blocking balloon are made of medical elastic materials.

The drainage device comprises a drainage tube, a drainage tube and a drainage device, wherein the drainage tube is provided with a drainage channel for performing drainage and a shaping cavity for containing fluid medium; wherein, the drainage channel is arranged along the length direction of the drainage tube and penetrates through the drainage tube; the shaping cavity channel is arranged on the outer periphery side of the drainage channel and is distributed in an extending way along the length direction of the drainage tube; the drainage tube can be in a firm state when the shaping cavity is filled with and keeps the fluid medium, and the drainage tube can be in a free state when the fluid medium is discharged from the shaping cavity. Through filling fluid medium into moulding chamber way, can make the drainage tube that originally soft easily buckles become straight and be difficult for buckling, not only can smoothly reach appointed art district position for the end of drainage tube and provide the guarantee, improve convenience and the security of operation and use, also can set up the drainage tube of suitable length as required, make it can stretch into operation projects such as drainage, attraction, washing etc. of darker human inside execution through human positions such as oral cavity, anus. In addition, the anti-blocking balloon is arranged, so that the integration of the functions of blocking prevention, drainage, suction, flushing and the like is realized, and the functions of the device are greatly enriched.

Drawings

Fig. 1 is a perspective view of a drainage device according to an embodiment in a free state.

Fig. 2 is a schematic cross-sectional structure of one embodiment of the drainage device at one side of the interface member.

Fig. 3 is a schematic cross-sectional structure view of one side of the anti-blocking balloon in the drainage device according to an embodiment.

FIG. 4 is a schematic sectional view of a drainage tube in the drainage device according to an embodiment.

Fig. 5 is a schematic perspective view of a stiffener ring in the drainage device according to an embodiment.

Fig. 6 is a schematic view (one) showing the expansion state of the anti-blocking balloon in the drainage device according to the embodiment.

Fig. 7 is a schematic view (two) showing the expansion state of the anti-blocking balloon in the drainage device according to the embodiment.

Fig. 8 is a schematic view (iii) showing the expansion state of the anti-blocking balloon in the drainage device according to the embodiment.

In the figure: 10. a drainage tube; 10a, a drainage channel; 10b, shaping a cavity; 10c, a balloon channel; 11. a drainage main pipe; 12. shaping ribs; 13. a reinforcing rib ring; 14. auxiliary ribs; 20. an anti-blocking balloon; 30. an interface member; 31. a first interface; 32. a second interface; 33. and a third interface.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

According to the drainage device, for example, a laparoscopic drainage tube, a shaping cavity channel is arranged on the outer peripheral side of a drainage channel of the drainage tube, and by means of the characteristic that the shaping cavity channel is distributed in an extending manner along the length direction of the drainage tube, gaseous or liquid fluid media such as clean air, physiological saline and the like are filled into the shaping cavity channel, so that the drainage tube which is originally soft and easy to bend presents a firm structural form under the action of fluid pressure; firstly, by utilizing the characteristics of increased hardness and difficult bending of the drainage tube, an operator can smoothly stretch the drainage tube into an operation area part in a human body, thereby not only enhancing the convenience of operation and use of the device, but also reducing the uncomfortable feeling of a patient and the probability of secondary trauma; secondly, the length of the drainage tube can be selected according to actual requirements, so that the drainage tube can only enter deeper body from the throat, anus and other parts of a patient; thirdly, with the help of the structural characteristics of the drainage tube, the functions of suction, drainage, flushing, blockage prevention and the like can be integrated into a whole, so that when the drainage device is applied to minimally invasive surgical operations such as laparoscopes, thoracoscopes and the like or other open type operations, different functions can be selected according to needs, and the application scenes of the device are effectively enriched.

Referring to fig. 1 to 8, an embodiment of a drainage device includes a drainage tube 10, an anti-blocking balloon 20 and an interface 30; wherein, the drainage tube 10 comprises a drainage main tube 11 and a shaping rib 12; the following are described separately.

Referring to fig. 1 to 8, the drainage main tube 11 is made of medical polymer material (such as polyurethane material) or stainless steel material, and can be set to a preset length according to practical application requirements, so that the drainage main tube 11 has certain flexibility to adapt to the structure of the lumen in the human body (i.e. equivalent to the walking path of the drainage main tube 11 in the human body); the main drainage tube 11 has two opposite ends along the length direction thereof, and for convenience of description, one of the ends is defined as a proximal end portion and the other end opposite to the proximal end portion is defined as a distal end portion; correspondingly, the tube space of the drainage main tube 11 (i.e. the tube channel which is arranged through along the length direction or the axial lead of the drainage main tube 11) is respectively communicated with the outside of the drainage main tube 11 through the near end part and the far end part; in this embodiment, the tube body space of the main drainage tube 11 is configured and arranged as a drainage channel 10 a; the distal end part of the drainage channel 10a is communicated with the drainage driving device, and after the proximal end part of the drainage main pipe 11 is extended into an operation area part in a human body, the drainage channel 10a (or the drainage main pipe 11) can play a role in fluid drainage under the cooperation of the drainage driving device;

for example, when the drainage driving device is a negative pressure device, under the driving of the negative pressure device, the drainage channel 10a can generate a negative pressure suction effect in the target operation area to suck and remove fluid substances such as blood, tissue fluid and the like in the target operation area, which affect the operation process. For another example, when the drainage driving device is a positive pressure device, under the driving of the positive pressure device, the flushing liquid such as physiological saline can be injected into the target operation area, so as to flush the dirt or instruments in the operation area; for another example, when the drainage driving device is a storage device for other liquid medicines, the drainage channel 10a can be used for guiding the liquid medicine material to the target operation area, so as to realize the general drainage of the fluid.

Referring to fig. 4, the shaping ribs 12 are made of a material having a certain elastic deformation, such as a medical elastic material, or a polymer material similar to the drainage main tube 11. In one embodiment, the shaping rib 12 is a substantially strip-shaped band-shaped structure extending from the distal end of the main drainage pipe 11 to the proximal end along the length direction of the main drainage pipe 11 for a predetermined distance to cover the outer peripheral surface of the main drainage pipe 11, and the contour edge of the shaping rib 12 is sealed and fixed to the outer peripheral surface of the main drainage pipe 11 by laser welding, UV curing, or other process means; thus, on one hand, the shaping ribs 12 and the drainage main pipe 11 can be combined and built into a whole to form the drainage pipe 10; on the other hand, a relatively closed cavity space may be formed between the shaping rib 12 and the drainage main tube 11, and the cavity space may be constructed and arranged as the shaping channel 10 b; it can be understood that the shaping channels 10b extend along the length direction of the main drainage tube 11 and are distributed on the outer periphery of the drainage channel 10a, and meanwhile, the shaping channels 10b are isolated from the drainage channel 10 a.

In another embodiment, referring to fig. 2 and fig. 3, the shaping rib 12 is generally a hollow cavity structure, and extends from the distal end portion of the drainage main tube 11 to the proximal end portion along the length direction of the drainage main tube 11, one surface of the shaping rib 12 facing the drainage main tube 11 is fixed to the outer peripheral surface of the drainage main tube 11 by laser welding, UV curing, and the like, and the cavity space of the shaping rib 12 is configured and arranged as the shaping channel 10b, so that when a fluid medium is filled into the shaping channel 10b, one surface of the shaping rib 12 facing away from the drainage main tube 11 is deformed, thereby shaping the drainage main tube 11 or the drainage tube 10 as a whole, and enabling the drainage main tube to be in a rigid state.

By injecting a fluid medium, such as clean air, physiological saline, and other liquid or gaseous fluid media, into the shaping lumen 10b, the shaping effect of the main drainage tube 11 or the whole drainage tube 10 can be achieved. Specifically, after the fluid medium in the shaping cavity 10b is emptied or when the shaping cavity 10b is in an initial state, the shaping ribs 12 or the shaping cavity 10b will assume a shriveled and contracted form and be attached to the outer circumferential surface of the drainage main tube 11, so that the outer circumferential surface of the drainage tube 10 is as smooth as possible; meanwhile, under the influence of the material characteristics, length and size of the drainage tube 10, the whole drainage tube 10 can be in a free state (or free form), and in the free state, the whole drainage tube 10 has certain flexibility and is easy to bend after being subjected to resistance; generally, the drainage tube 10 can follow the structural features of the body cavity after being freely inserted into the body cavity. When a certain amount of fluid medium is filled into and kept in the shaping cavity 10b, the shaping ribs 12 or the shaping cavity 10b are expanded and filled by virtue of the characteristic that the shaping ribs 12 can elastically deform, and the whole drainage tube 10 is in a stiff state (or stiff shape) under the action of fluid pressure, so that the whole hardness of the drainage tube 10 is increased in the stiff state, and the drainage tube is stiff and is not easy to bend; thus, the drainage tube 10 can smoothly pass through the obstacle and smoothly reach the operation region during the walking process.

Referring to fig. 1, 3 and 6 to 8, the anti-blocking balloon 20 is fixedly disposed at the proximal end portion of the drainage main tube 11, and keeps a certain distance from the port of the proximal end portion of the drainage main tube 11 and one end of the shaping rib 12 (or the shaping channel 10 b) facing the proximal end portion of the drainage main tube 11; the anti-blocking balloon 20 is made of medical elastic material or other materials with certain elastic deformation.

In one embodiment, the overall shape of the anti-blocking balloon 20 may be a substantially single-layer sleeve-shaped structure, and the two port walls of the anti-blocking balloon 20 and the outer circumferential surface of the drainage main pipe 11 are sealed and fixed by laser welding, UV curing, or other process means, so that a relatively closed cavity space can be formed between the anti-blocking balloon 20 and the drainage main pipe 11, and the cavity space can be understood as a balloon space or a balloon chamber of the anti-blocking balloon 20.

In another embodiment, the overall shape of the anti-blocking balloon 20 is a sleeve-shaped structure having an interlayer, and the inner layer of the anti-blocking balloon 20 and the outer circumferential surface of the main drainage tube 11 are hermetically fixed by laser welding, UV curing, and other process means, so that the interlayer space of the anti-blocking balloon 20 is used as the balloon space or the balloon chamber of the anti-blocking balloon 20.

By filling and maintaining a fluid medium (such as a liquid or gaseous fluid medium such as clean air, physiological saline, and the like) into the anti-blocking balloon 20, the anti-blocking balloon 20 can assume an expanded state deformed toward the outer periphery of the drainage main tube 11; by means of the expansion state of the anti-blocking balloon 20, on one hand, the position of the drainage main pipe 11 can be fixed, for example, the proximal end part of the drainage main pipe 11 can be positioned and fixed at the operation area part through the contact of the anti-blocking balloon 20 and the human tissue of the walking path; on the other hand, the port of the proximal end part of the drainage main pipe 11 can be blocked by crushed soft tissue, debris, bone particles, blood clots and the like at or near the operation area or the tissue of the operation area can be expanded to prevent the port of the proximal end part of the drainage main pipe 11 from being blocked by internal tissues, thereby creating conditions for the device to perform the functional operations of suction, irrigation, drainage and the like. On the contrary, when the fluid medium in the anti-blocking balloon 20 is exhausted, the anti-blocking balloon 20 may be in a contracted state deformed toward the inner circumferential direction of the drainage main tube 11, and the anti-blocking balloon 20 is attached to the outer circumferential surface of the drainage main tube 11 by using the material characteristics of the anti-blocking balloon 20, so as to ensure the smoothness of the outer circumferential surface of the drainage main tube 11 to the maximum extent.

Referring to fig. 1, 2 and 6 to 8, the interface 30 is disposed at one side of the distal end portion of the drainage main tube 11, and is mainly used for externally connecting associated devices, such as a drainage driving device, a fluid source, and the like, so that the drainage main tube 11 can perform drainage, suction, flushing, and the like, and a fluid medium can enter and exit the shaping lumen 10b or the anti-blocking balloon 20, thereby realizing the shaping of the drainage tube 10 or the anti-blocking function of the device; the mouthpiece 30 includes a first mouthpiece 31, a first valve body (not shown), a second mouthpiece 32, a second valve body (not shown), and a third mouthpiece 33.

The first interface 31 is used as a connection port between the shaping cavity channel 10b and a fluid source, and is communicated with the shaping cavity channel 10b, and after the fluid source establishes a communication relationship with the shaping cavity channel 10b through the first interface 31, a fluid medium can be driven to enter and exit the shaping cavity channel 10b so as to adjust the fluid pressure in the shaping cavity channel 10b, so that the shaping cavity channel 10b (or the shaping rib 12) is inflated, deformed or decompressed and restored; the first valve body is installed on the first connector 31, and is mainly used for turning on and off a fluid flow path of the first connector 31, and can adopt a check valve, a switch valve and other pipeline valves according to actual conditions, after a certain amount of fluid medium is injected into the shaping cavity 10b, the fluid medium can be kept in the shaping cavity 10b by turning off the first connector 31, so that the drainage tube 10 is kept in a constant and firm state.

The second interface 32 is used as a connection port between the anti-blocking balloon 20 and a fluid source, and is communicated with the anti-blocking balloon 20, and the fluid source can drive a fluid medium to enter and exit the anti-blocking balloon 20 through the second interface 32, so that the anti-blocking balloon 20 is changed between an expansion state and a contraction state; the second valve body has a function similar to that of the first valve body, is arranged at the second connector 32, and can keep a certain amount of fluid medium in the anti-blocking balloon 20 by closing the second connector 32, so that the anti-blocking balloon 20 maintains a certain expansion shape.

The third interface 33 is used as a connection port of the drainage channel 10a and the drainage driving device, and is communicated with a port of the drainage channel 10a located at the distal end portion side of the drainage main pipe 11, so that the drainage main pipe 11 (or the drainage channel 10 a) can perform drainage, suction, flushing and the like in cooperation with the drainage driving device.

It should be noted that each interface in the interface 30 may adopt an integrated structure, so as to simplify the assembly process of the components of the device; of course, a split configuration may also be employed. Meanwhile, the "fluid source" mentioned herein may be selectively configured according to the type of the fluid medium, such as a syringe storing physiological saline, a liquid pump capable of driving the liquid fluid medium to flow, and the like; as another example, an air pump or inflator capable of driving a flow of a gaseous medium; it is not repeated herein.

When the drainage tube 10 is specifically implemented, the drainage tube 10 can be inserted into a cavity of a human body (such as an oral cavity, an anus and the like), and in the process of driving the drainage tube 10 to walk along a preset path in the human body, the drainage tube 10 is changed between a free state and different rigid states by adjusting the pressure of fluid in the shaping cavity 10b, so that a port of the near end part of the drainage main tube 11 (namely, the tail end of the drainage tube 10) can smoothly reach an operation area part by adjusting and controlling the hardness, the straightening degree and the like of the drainage tube 10; then, the anti-blocking balloon 20 is filled with a fluid medium to be expanded and deformed so as to fix the tail end of the drainage tube 10 at the operation area, and meanwhile, the anti-blocking balloon 20 is utilized to stretch the internal tissues near the tail end of the drainage tube 10, so that the drainage tube 10 cannot be blocked by the internal tissues and the like when the operations such as suction, drainage, flushing and the like are carried out.

In another embodiment, the shaping ribs 11 can be omitted, and a structure similar to the shaping cavity 10b can be directly formed on the outer circumferential surface of the drainage main pipe 11 by a process means such as 3D printing; it can also be understood that the drainage channel 10a and the shaping cavity 10a located at the outer periphery of the drainage channel 10a can be directly formed on the drainage tube 10 in an integrated manner by selecting the material for manufacturing the drainage tube 10 and the manufacturing process.

In one embodiment, referring to fig. 4, the drainage tube 10 includes three shaping ribs 12, the three shaping ribs 12 are uniformly and alternately arranged on the outer peripheral surface of the drainage main tube 11 around the drainage main tube 11, so that a plurality of shaping channels 10b are formed on the outer peripheral side of the drainage channel 10a by the shaping ribs 12 or the cooperation of the shaping ribs 12 and the drainage main tube 11. In specific implementation, the three shaping ribs 12 and the main drainage tube 11 have the same structural relationship (such as length), so that the drainage tube 10 can be made to have a straight and stiff shape by injecting the same amount of fluid medium into the three shaping channels 10b simultaneously. Of course, the shaping ribs 12 may also be two, four or more, and the main points are: the shaping cavity 10b can be used for uniformly applying fluid pressure to the drainage main pipe 11, so that the drainage main pipe 11 or the drainage pipe 10 is in a straight and firm state.

In other embodiments, the shaping rib 12 may be one (i.e. one shaping channel 10 b), so that when a fluid medium is injected into and maintained in the shaping channel 10b, the main drainage tube 11 or the whole drainage tube 10 can be bent in a specific direction and maintain sufficient rigidity; the number of the shaping ribs 12 may be multiple, and the structural relationship (such as length) between the plurality of shaping ribs 12 and the drainage main tube 11 or the injection amount of the fluid medium is different, so that the drainage main tube 11 or the drainage tube 10 as a whole can be bent towards a preset direction and maintain sufficient hardness by regulating and controlling each shaping cavity 10 b. Therefore, the drainage device can be suitable for different application scenes to meet different application requirements.

In one embodiment, referring to FIGS. 2, 3 and 5-8, the drain tube 10 further includes a stiffener ring 13, which is substantially a hollow annular or sleeve-like balloon structure; the reinforcing rib ring 13 surrounds the outer circumferential surface fixed to the distal end portion of the drainage main tube 11, and an axial end surface of the reinforcing rib ring 13 facing the proximal end portion side of the drainage main tube 11 is fixedly communicated with the shaping channel 10b, and the other axial end surface is fixedly communicated with the first port 31. On one hand, the reinforcing rib rings 13 are used for communicating the plurality of shaping channels 10b, so that a fluid source can inject fluid media into or discharge fluid media from each shaping channel 10b by the aid of the first connector 31 and the reinforcing rib rings 13, and the whole drainage tube 10 or the main drainage tube 10 can be switched between a rigid state and a free state. On the other hand, the reinforcing rib ring 13 can also play a role in further positioning and fixing the reinforcing rib 12 so as to prevent the reinforcing rib 12 from being separated from the drainage main pipe 11.

Based on the choice of the structural configuration of the anti-clogging balloon 20, such as a sleeve-like configuration with a sandwich layer or a single-layer sleeve-like, the anti-clogging balloon 20 has a balloon chamber or a plurality of balloon chambers.

In one embodiment, referring to fig. 6, the anti-blocking balloon 20 has a balloon chamber distributed around the proximal end of the drainage main tube 11, and when the anti-blocking balloon 20 is in an inflated state, the anti-blocking balloon 20 can take on a spherical shape or a cylindrical shape with a smooth contour surface, so as to fully fit the tissues of the operation region, and to open the operation region at the end of the drainage tube 10, thereby creating conditions for preventing the drainage tube from being blocked and for smoothly performing drainage, suction, irrigation and the like.

In another embodiment, referring to fig. 7 and 8, the anti-clogging balloon 20 has a plurality of balloon chambers, such as two, three or more, spaced around the proximal end of the main drainage tube 11; in specific implementation, the multiple balloon chambers can be obtained by processing local parts of the anti-blocking balloon 20, for example, if a plurality of shaping lines or shaping surfaces 20a are arranged on the anti-blocking balloon 20, the local parts of the anti-blocking balloon 20 are attached into a whole by using the shaping lines or the shaping surfaces 20a, and other parts are separated from each other; of course, a plurality of anti-blocking balloons 20 can also be uniformly arranged around the drainage main pipe 11, and the local parts of two adjacent anti-blocking balloons 20 are attached into a whole, so that a plurality of balloon chambers are constructed. When the anti-blocking balloon 20 is in an expanded state, the contour surface of the anti-blocking balloon 20 can present a shape similar to a grid shape or an uneven shape, so that the contour surface part of the anti-blocking balloon 20 can contact tissues attached to the operation area part to open the operation area at the tail end of the drainage tube 10, and the non-attached part can form a certain gap with the internal tissues, thereby creating conditions for the flow of liquid substances at the operation area part.

In one embodiment, referring to fig. 2 to 8, the drainage tube 10 further includes an auxiliary rib 14, which can be selectively arranged with reference to the structural configuration of the reinforcing rib 15, and different from the reinforcing rib 15, the reinforcing rib 14 extends from the distal end portion of the drainage main tube 11 to the anti-blocking balloon 20 along the length direction of the drainage main tube 11, so as to construct a balloon channel 10c communicated with the anti-blocking balloon 20 inside the auxiliary rib 14 or between the auxiliary rib 14 and the outer surface of the drainage main tube 11, and the balloon channel 10c is distributed on the outer circumferential side of the drainage channel 10a in a manner of being side by side with the shaping lumen 10 b; correspondingly, the second port 32 can be communicated with the anti-blocking balloon 20 through the balloon channel 10c, and the fluid medium can flow into and out of the anti-blocking balloon 20 through the balloon channel 10c, so that the anti-blocking balloon 20 is expanded or contracted.

In another embodiment, the auxiliary ribs 14 may be omitted, the balloon channel 10c may be directly formed on the drainage tube 10 by a process such as 3D printing, and the anti-blocking balloon 20 is fixedly connected to the balloon channel 10c during the process of assembling the anti-blocking balloon 10.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the utility model and are not intended to be limiting. For a person skilled in the art to which the utility model pertains, several simple deductions, modifications or substitutions may be made according to the idea of the utility model.

Claims (10)

1. A drainage device, comprising a drainage tube having:

the drainage channel is used for playing a drainage role and is arranged to penetrate through the drainage tube along the length direction of the drainage tube; and

the shaping cavity channel is used for containing a fluid medium, is arranged on the outer peripheral side of the drainage channel and extends and is distributed along the length direction of the drainage tube;

the drainage tube can be in a firm state when the shaping cavity is filled with and keeps the fluid medium, and the drainage tube can be in a free state when the fluid medium is discharged from the shaping cavity.

2. The drainage device of claim 1, wherein the drain tube comprises:

a drainage main tube having a proximal end portion and a distal end portion opposite to each other along a length direction thereof, a tube body space of the drainage main tube being configured as a drainage channel; and

moulding rib, certainly the distal end portion that the drainage was responsible for extends the setting towards the proximal end portion direction, moulding rib adopts bar tape structure, moulding rib's profile edge is responsible for with the drainage peripheral surface sealing fixed, with moulding rib and drainage are responsible for between the structure formation moulding chamber way.

3. The drainage device of claim 1, wherein the drain tube comprises:

a drainage main tube having a proximal end portion and a distal end portion opposite to each other along a length direction thereof, a tube body space of the drainage main tube being configured as a drainage channel; and

moulding rib, certainly the distal end portion that the drainage was responsible for extends the setting towards the proximal end portion direction, moulding rib adopts the cavity structure, moulding rib is responsible for the one side of being responsible for towards the drainage and the drainage is attached fixedly with the peripheral surface that the drainage was responsible for, moulding rib's cavity space is constructed into moulding chamber way.

4. The drainage device according to claim 2 or 3, wherein the drainage tube comprises a plurality of shaping ribs, and the plurality of shaping ribs are arranged around the drainage main tube at intervals in parallel to form a plurality of shaping channels arranged at intervals in parallel on the outer peripheral side of the drainage channel.

5. The drainage device according to claim 2 or 3, wherein the drainage tube further comprises a reinforcing rib ring for guiding the fluid medium to enter and exit the shaping channel, the reinforcing rib ring is fixed around the outer circumferential surface of the distal end portion of the drainage main tube portion, and a plurality of the shaping channels are arranged in communication with the reinforcing rib ring.

6. The drainage device according to claim 2 or 3, further comprising an anti-blocking balloon fixedly arranged at the proximal end of the drainage main tube; the anti-blocking balloon is in an expansion state capable of deforming towards the peripheral direction of the drainage main pipe when being filled with and maintaining a fluid medium; the anti-blocking balloon is also provided with a contraction state which can be deformed towards the inner peripheral direction of the drainage main pipe when the fluid medium is discharged.

7. The drainage device according to claim 6, wherein the anti-blocking balloon has a balloon chamber for containing a fluid medium, and the balloon chamber is distributed around the outer circumferential side of the drainage main pipe; or the anti-blocking balloon is provided with a plurality of balloon chambers for containing fluid media, and the balloon chambers are arranged around the drainage main pipe at intervals.

8. The drainage device according to claim 6, wherein the drainage tube further has a balloon channel for guiding the fluid medium to and from the anti-blocking balloon, the balloon channel is distributed on the outer peripheral side of the drainage channel, and the balloon channel extends from the distal end portion of the drainage main tube to the anti-blocking balloon to communicate with the anti-blocking balloon.

9. The drainage device of claim 6, further comprising an interface disposed at the distal end of the drainage main, the interface having:

the first interface is used for being externally connected with a fluid source and communicated with the shaping cavity channel so that the fluid source can drive a fluid medium to enter and exit the shaping cavity channel;

the first valve body is arranged at the first interface and is used for switching on and off the first interface so as to enable the fluid medium to be kept in the shaping cavity;

the second interface is used for being externally connected with a fluid source and communicated with the anti-blocking balloon, so that the fluid source can drive fluid media to enter and exit the anti-blocking balloon;

the second valve body is arranged at the second interface and is used for switching on and off the second interface so as to enable the fluid medium to be kept in the anti-blocking balloon; and

and the third interface is used for being externally connected with a drainage driving device and communicated with the drainage channel.

10. The drainage device of claim 6, wherein the shaping ribs and the anti-blocking balloon are made of a medical elastic material.

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