CN214018913U

CN214018913U - Medical three-way pipe

Info

Publication number: CN214018913U
Application number: CN202022698413.5U
Authority: CN
Inventors: 王秀; 蔡娟丽; 赵芳; 王楠楠; 何萌
Original assignee: Sanmenxia Central Hospital Of Henan Province (sanmenxia Children's Hospital Sanmenxia Maternal And Child Health Hospital)
Current assignee: Sanmenxia Central Hospital Of Henan Province (sanmenxia Children's Hospital Sanmenxia Maternal And Child Health Hospital)
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-08-24
Anticipated expiration: 2030-11-19

Abstract

The application provides a medical three-way pipe, and belongs to the field of medical instruments. The medical three-way pipe comprises a three-way pipe body and a valve body, wherein the three-way pipe body is provided with a valve chamber and three branch pipes which are respectively communicated with the valve chamber. The valve body has a valve stem and a valve handle. Wherein: the valve stem has a first stem segment and a second stem segment connected in an axial direction, the first stem segment being rotatably connected to the valve chamber and allowing the second stem segment to extend into the valve chamber. The second rod section is provided with a fluid channel on the side wall in a concave mode, so that when the second rod section seals any branch pipe, the rest two branch pipes are communicated with the valve chamber. The valve handle is located outside the valve chamber and connected with the first rod section, and when the second rod section closes any branch pipe, the valve handle extends along the axial direction of the closed branch pipe towards the direction far away from the fluid channel. The valve body has simple structure and convenient operation of switching channels.

Description

Medical three-way pipe

Technical Field

The application relates to the field of medical instruments, in particular to a medical three-way pipe.

Background

The medical three-way pipe is provided with a control valve on the three-way pipe body and used for switching the communicated channels according to the use requirement. In the existing medical three-way pipe, the control valves are usually arranged in two channels of the three-way pipe body respectively, the communicated channels are switched by controlling the check valves, and the control valves are troublesome to arrange and operate in the mode.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a medical three-way pipe, the simple structure of valve body and the convenient operation of switching passageway.

The embodiment of the application is realized as follows:

the embodiment of the application provides a medical three-way pipe, including three-way pipe body and valve body, the three-way pipe body have the valve chamber and respectively with the three branch pipe of valve chamber intercommunication, the valve body has valve rod and valve handle, wherein: the valve stem having a first stem segment and a second stem segment connected in an axial direction, the first stem segment rotatably connected to the valve chamber and having the second stem segment extending into the valve chamber; the second rod section is provided with a fluid channel on the side wall in a concave mode, so that when the second rod section seals any branch pipe, the rest two branch pipes are communicated with the valve chamber. The valve handle is located outside the valve chamber and connected with the first rod section, and when the second rod section closes any branch pipe, the valve handle extends along the axial direction of the closed branch pipe towards the direction far away from the fluid channel.

In the technical scheme, the fluid channel is formed in the side wall of the second rod section extending into the valve chamber to realize switching, and the setting mode of the valve rod is simple.

When any branch pipe is sealed through the rest rod body part of the second rod section, the rest two branch pipes can be communicated with the valve chamber by utilizing the fluid channel, so that the switching can be completed only by rotating the valve rod when the communicated channel is switched, and the operation is simple.

The valve handle is configured to extend towards the direction far away from the fluid channel along the axial direction of the sealed branch pipe, so that the branch pipe needing to be sealed is determined at first when switching is performed, then the valve handle is coincided with the branch pipe needing to be sealed by rotating the valve body, the operation is simpler, the switching state is more accurate, and the valve handle can be effectively prevented from being touched by mistake or interfering with other operations.

In some possible embodiments, the valve chamber is recessed with a receiving groove, and an end of the second rod section remote from the first rod section is rotatably received in the receiving groove.

Among the above-mentioned technical scheme, through in the storage tank with the tip holding of second pole section in the valve chamber for the convenient just leakproofness of being connected of valve rod and valve chamber is better.

In some possible embodiments, the fluid passage is a passage cut through to an end face of the second pole segment remote from the first pole segment.

In the technical scheme, the fluid channel is arranged on the side wall of the second rod section in a mode of penetrating through the end face of the second rod section, and the fluid channel is convenient to arrange; meanwhile, the arrangement mode enables the fluid channel to have a larger extension distance in the axial direction of the second rod section, and ensures that fluid can smoothly pass through the fluid channel.

In some possible embodiments, the ratio of the depth of the fluid channel in the radial direction of the second rod section to the diameter of the second rod section is 1:2 to 3.

In the technical scheme, the fluid channel has proper depth in the radial direction of the second rod section, so that the second rod section has better working strength while the fluid smoothly passes through the fluid channel.

In some possible embodiments, the three branches of the tee body are a first branch, a second branch and a third branch, the first branch and the second branch are coaxially arranged, and the end of the third branch far away from the valve chamber is provided with a syringe connector for butt joint with a needle seat of a syringe.

Among the above-mentioned technical scheme, the mode that first branch pipe and second branch pipe are coaxial sets up, and the medical three-way pipe of being convenient for when treating corresponding liquid input or output, liquid can comparatively unobstructed circulate. Because the third branch pipe needs to be opened temporarily for auxiliary flushing or auxiliary medicament injection in clinic, the injector joint is convenient to be butted with a needle seat of the injector, and the flushing or auxiliary medicament injection at the third branch pipe is convenient.

In some possible embodiments, the outer wall of the syringe adapter is cylindrical and provided with a first external thread for threaded connection with a hub having an internal thread.

Among the above-mentioned technical scheme, the first external screw thread that cylindric outer wall set up is convenient with the needle file threaded connection that has the internal thread for supplementary washing or before injecting into supplementary medicament, with the needle file and the syringe joint threaded connection of syringe that carry out in third branch pipe department, make and connect the leakproofness well and follow-up operation more convenient.

In some possible embodiments, the medical tee further comprises a sealing cap for detachable connection to the syringe adapter.

Among the above-mentioned technical scheme, when the corresponding liquid input of intercommunication first branch pipe and second branch pipe is treated or is exported, seal the syringe joint through the sealing cap for the leakproofness of third branch pipe is better.

In some possible embodiments, the end of the first branch tube remote from the valve chamber is provided with a urinary catheter connector for interfacing with a urinary catheter, and the end of the second branch tube remote from the valve chamber is provided with a drainage connector for interfacing with a drainage tube connector of a drainage bag.

Among the above-mentioned technical scheme, the catheterization connects and is convenient for dock with the catheter, and the drainage connects and is convenient for dock drainage bag's drainage tube connector for this medical three-way pipe can be connected with the catheterization subassembly better. When needs wash, directly rotate the valve body and seal the second branch pipe and make third branch pipe and first branch pipe communicate and can begin to wash, rotate the valve body and seal the third branch pipe after washing and make second branch pipe and first branch pipe communicate and can continue to carry out the catheterization, convenient operation.

In some possible embodiments, the urinary catheter adapter has a cone section, the outer diameter of the cone section gradually decreases from one end close to the valve body to one end far away from the valve body, and the outer wall of the cone section is provided with a second external thread; and/or the drainage joint is a silica gel joint sleeved on the second branch pipe.

In the technical scheme, the catheter is usually a rubber tube, the urethral catheterization joint is provided with a cone section of which the outer diameter is gradually reduced from one end close to the valve body to one end far away from the valve body, and the cone section can be used as a transition section when being connected, so that the rubber tube can be stably connected with the catheter; the second external screw thread that the outer wall of vertebra body section set up can further increase the stability that urethral catheterization joint and catheter are connected.

Because the drainage tube joint of drainage bag usually is the stereoplasm joint, sets up the drainage joint into the silica gel joint of cover locating the second branch pipe, the drainage connects convenient to set up, and makes the drainage tube joint that the drainage bag can be located to the drainage joint more conveniently cover realize the butt joint.

In some possible embodiments, the end of the third branch pipe remote from the valve chamber extends towards the side remote from the first branch pipe.

Among the above-mentioned technical scheme, the tip orientation that keeps away from the valve chamber of third branch pipe extends near one side of second branch pipe for when washing third branch pipe and first branch pipe intercommunication, rivers have the partial velocity along the axial of first branch pipe, make and to realize washing better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a medical three-way tube provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a tee body of a medical tee provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a valve body of a medical three-way pipe provided by the embodiment of the application.

Icon: 100-medical three-way pipe; 110-a tee body; 111-a valve chamber; 112-a first branch; 1121-catheterization linker; 113-a second leg; 1131-drainage connector; 114-a third branch; 1141-syringe connector; 120-a valve body; 121-a valve stem; 1211 — a first pole segment; 1212-a second pole segment; 122-a fluid channel; 123-valve handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when products of the application are used, and are only used for convenience in describing the application and simplifying the description, but do not indicate or imply that the devices or elements to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "perpendicular," "parallel," "coaxial," "axial," "radial," and the like do not denote a requirement of absolute or relative position of components, but rather may be somewhat oblique.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

Referring to fig. 1, the embodiment of the present application provides a medical three-way pipe 100, which includes a three-way pipe body 110 and a valve body 120.

Referring to fig. 1 and 2, in the embodiment of the present application, the tee body 110 has a valve chamber 111 and three branch pipes respectively communicating with the valve chamber 111.

Specifically, the three branches of the tee body 110 are a first branch 112, a second branch 113, and a third branch 114. The first branch pipe 112, the second branch pipe 113, and the third branch pipe 114 are connected to an outer wall of the valve chamber 111, respectively. One end of the first branch pipe 112 adjacent to the valve chamber 111 has a first communication hole communicating with the valve chamber 111, one end of the second branch pipe 113 adjacent to the valve chamber 111 has a second communication hole communicating with the valve chamber 111, and one end of the third branch pipe 114 adjacent to the valve chamber 111 has a third communication hole communicating with the valve chamber 111.

It will be appreciated that in the present application, the tee body 110 may be provided in a manner known in the art. The three branch pipes of the three-way pipe body 110 can be provided with different joints as required for being connected with different medical instruments, so that the medical three-way pipe 100 is applied to different medical scenes.

As an example, when the medical three-way pipe 100 is applied to a transfusion scene, the first branch pipe 112 and the second branch pipe 113 are used as transfusion channels for performing main transfusion operations; the third branch 114 serves as an auxiliary passage for performing the injection of the auxiliary agent when the injection of the auxiliary agent is temporarily required.

As another example, when the medical three-way pipe 100 is applied to a catheterization scene, the first branch pipe 112 and the second branch pipe 113 are used as catheterization channels for performing main catheterization operations; the third branch 114 serves as an auxiliary passage for flushing when flushing is temporarily required.

In some exemplary embodiments, the first branch 112 and the second branch 113 are coaxially disposed, and are mainly used for inputting or outputting corresponding liquid when performing treatment, so that the liquid can flow freely. The end of the third branch 114 remote from the valve chamber 111 is provided with a syringe connector 1141 for interfacing with the needle hub of a syringe, and the syringe connector 1141 is provided to facilitate interfacing with the needle hub of a syringe, facilitating flushing or injection of an auxiliary agent at the third branch 114.

In clinic, the bladder usually bleeds due to various reasons, and the poor urine drainage is easily caused by the blockage of blood clots. When the doctor washes the clot, often need extract the joint of catheter and drainage bag junction, then after washing the completion, change the drainage bag again, its troublesome poeration.

As an example, an end of the first branch pipe 112 away from the valve chamber 111 is provided with a urinary catheter connector 1121 for interfacing with a urinary catheter, and an end of the second branch pipe 113 away from the valve chamber 111 is provided with a drainage connector 1131 for interfacing with a drainage tube connector of a drainage bag.

The urinary catheter 1121 is convenient for being butted with a urinary catheter, and the drainage connector 1131 is convenient for being butted with a drainage tube connector of a drainage bag, so that the medical three-way tube 100 can be well connected with a urinary catheter assembly. When the urine drainage device needs to be flushed, the second branch pipe 113 is sealed through the adjusting valve body 120, so that the third branch pipe 114 is communicated with the first branch pipe 112 to start flushing, and after flushing is completed, the third branch pipe 114 is sealed through the adjusting valve body 120, so that the second branch pipe 113 is communicated with the first branch pipe 112 to continue urine drainage, and operation is convenient.

Considering that a larger flushing power is required during flushing, further, the end of the third branch pipe 114 far away from the valve chamber 111 extends towards the side far away from the first branch pipe 112, and the arrangement is such that when the third branch pipe 114 is communicated with the first branch pipe 112 for flushing, the water flow has a partial velocity along the axial direction of the first branch pipe 112, so that better flushing can be achieved.

It will be appreciated that in embodiments of the present application, the junction of each branch may be selected according to the medical device to which it is to be connected. The urethral adapter 1121 is an adapter that can be well abutted with a pipe body, and the drainage adapter 1131 is an adapter that can be well abutted with a rigid adapter.

In some exemplary embodiments, the outer wall of the syringe adapter 1141 is cylindrical and is provided with a first external thread for threaded connection with a hub having an internal thread. Before the auxiliary flushing or injection of the auxiliary medicine is performed at the third branch pipe 114, the needle hub of the syringe is screwed with the syringe connector 1141, so that the connection is hermetical; and the butt joint does not need to be manually supported during further operation, so that the subsequent operation is more convenient.

Further, medical tee 100 also includes a sealing cap for removable connection to syringe adapter 1141. When the first branch pipe 112 and the second branch pipe 113 are communicated for corresponding liquid input or output of treatment, the syringe connector 1141 is sealed by the sealing cap, so that the sealing performance of the third branch pipe 114 is better.

The sealing cap is not limited, and when the outer wall of syringe connector 1141 is provided with the first external thread, the sealing cap may be screwed with syringe connector 1141, and the sealing cap may also be inserted into the inner wall of syringe connector 1141. When the outer wall of syringe connector 1141 is not provided with the first external thread, the sealing cap may be sleeved on the outer wall of syringe connector 1141, and the sealing cap may also be inserted into the inner wall of syringe connector 1141.

In some exemplary embodiments, the urine guide joint 1121 has a cone section, the outer diameter of which gradually decreases from the end close to the valve body 120 to the end far from the valve body 120, and since the urine guide is generally a rubber tube, the cone section can be used as a transition section when being connected, so that the rubber tube can be better stably connected with the urine guide. The outer wall of the vertebral body section is provided with a second external thread, so that the connection stability of the urethral catheterization joint 1121 and the urethral catheter can be further improved.

In some exemplary embodiments, the drainage connector 1131 is a silicone connector sleeved on the second branch pipe 113, the drainage connector 1131 in the form of a silicone connector is convenient to set, and the drainage connector 1131 can be conveniently sleeved on the drainage tube of the drainage bag to realize butt joint.

The valve body 120 is disposed corresponding to the valve chamber 111, and is used for switching the passages communicated with the tee body 110.

Referring to fig. 1 and 3, in an embodiment of the present application, a valve body 120 has a valve stem 121 and a valve handle 123. Wherein the valve rod 121 has a first rod section 1211 and a second rod section 1212 connected in the axial direction, the first rod section 1211 being rotatably connected to the valve chamber 111 such that the second rod section 1212 protrudes into the valve chamber 111; valve handle 123 is located outside valve chamber 111 and is connected to first rod section 1211.

In this application, the second rod segment 1212 is recessed with a fluid passage 122 on a side wall, and when any one of the branch pipes is closed by the remaining rod body portion of the second rod segment 1212, the remaining two branch pipes can be communicated with the valve chamber 111 by using the fluid passage 122, so that the remaining two branch pipes are communicated with the valve chamber 111 when any one of the branch pipes is closed by the second rod segment 1212. When the communicated channels are switched, the switching can be completed only by rotating the valve rod 121, and the operation is simple.

As an example, when it is required to communicate the first branch pipe 112 and the second branch pipe 113 and close the third branch pipe 114, the third communication hole of the third branch pipe 114 is closed by the second rod section 1212 by rotating the adjustment valve rod 121, so that the first communication hole of the first branch pipe 112 communicates with the second communication hole of the second branch pipe 113 through the fluid passage 122 in the valve chamber 111.

In the present application, when the second rod segment 1212 closes off any of the branches, the valve handle 123 extends in a direction away from the fluid passage 122 in the axial direction of the closed branch. When switching, the branch pipe needing to be closed is determined, then the valve handle 123 is overlapped with the branch pipe needing to be closed by rotating the valve body 120, so that the operation is simpler, the switching state is more accurate, and the valve handle 123 can be effectively prevented from being touched by mistake or interfering with other operations.

As an example, when it is desired to close the third branch 114, the valve handle 123 is caused to coincide with the third branch 114 along the third branch 114 by rotating the valve body 120. At this time, the valve body 120 extends in the axial direction of the third branch pipe 114 toward the direction away from the fluid passage 122, and the second rod segment 1212 achieves closure of the third communication hole of the third branch pipe 114.

Considering the influence of the depth of the fluid channel 122 in the radial direction of the second rod segment 1212 on the flow condition of the liquid and the strength of the second rod body, the ratio of the depth of the fluid channel 122 in the radial direction of the second rod segment 1212 to the diameter of the second rod segment 1212 is, for example, 1:2, 1:2.5 or 1: 3. Under the above criteria, the fluid channel 122 has a proper depth in the radial direction of the second rod segment 1212, so that the second rod segment 1212 has better working strength while ensuring that the fluid smoothly passes through the fluid channel 122.

It is understood that in the embodiment of the present application, the second rod segment 1212 is not limited to be disposed, and the second rod segment 1212 may be completely received in the valve chamber 111, and the second rod segment 1212 may also partially extend out of the valve chamber 111. The fluid passage 122 corresponds to the portion of the second rod segment 1212 received in the valve chamber 111.

In some exemplary embodiments, the valve chamber 111 is recessed with a receiving groove, and an end of the second rod segment 1212, which is away from the first rod segment 1211, is rotatably received in the receiving groove, so that the second rod segment 1212 is completely received in the valve chamber 111, and the valve rod 121 is conveniently and tightly connected to the valve chamber 111.

It should be noted that, in the embodiment of the present application, the manner of recessing the accommodating groove in the valve chamber 111 is not limited, and for example, the accommodating groove may be recessing directly inside the wall body of the valve chamber 111, or a mounting seat may be disposed on the valve chamber 111 and the accommodating groove may be recessing on the mounting seat.

Further, in the embodiment where the second rod segment 1212 is completely received in the valve chamber 111, the fluid passage 122 is a passage notch penetrating to the end surface of the second rod segment 1212 far from the first rod segment 1211, that is, the side of the fluid passage 122 far from the first rod segment 1211 extends to the end surface penetrating the first rod segment 1211, so that the valve rod 121 is conveniently disposed. At the same time, the arrangement is such that the fluid passage 122 extends over a greater distance in the axial direction of the second rod segment 1212, ensuring that fluid can smoothly pass through the fluid passage 122.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a medical three-way pipe, includes three-way pipe body and valve body, the three-way pipe body have the valve chamber and respectively with three branch pipe of valve chamber intercommunication, its characterized in that, the valve body has valve rod and valve handle, wherein:

said valve stem having first and second axially connected stem segments, said first stem segment rotatably connected to said valve housing and having said second stem segment projecting into said valve housing; the side wall of the second rod section is concavely provided with a fluid channel, so that when the second rod section seals any branch pipe, the other two branch pipes are communicated with the valve chamber;

the valve handle is located outside the valve chamber and connected with the first rod section, and when the second rod section closes any one of the branch pipes, the valve handle extends along the axial direction of the closed branch pipe towards the direction far away from the fluid channel.

2. The medical tee of claim 1, wherein the valve housing is recessed with a receiving groove, an end of the second stem segment distal from the first stem segment being rotatably received in the receiving groove.

3. The medical tee of claim 2, wherein the fluid passage is a passage notch through to an end face of the second stem segment distal from the first stem segment.

4. The medical tee of claim 1, wherein the ratio of the depth of the fluid channel in the radial direction of the second stem segment to the diameter of the second stem segment is 1: 2-3.

5. The medical three-way pipe according to any one of claims 1-4, wherein three branch pipes of the three-way pipe body are a first branch pipe, a second branch pipe and a third branch pipe respectively, the first branch pipe and the second branch pipe are coaxially arranged, and an injector joint for butting with a needle seat of an injector is arranged at the end part of the third branch pipe far away from the valve chamber.

6. The medical tee of claim 5, wherein the outer wall of the syringe fitting is cylindrical and is provided with a first external thread for threaded connection with the hub having an internal thread.

7. The medical tee of claim 5, further comprising a sealing cap for detachable connection with the syringe fitting.

8. The medical tee of claim 5, wherein the end of the first leg distal from the valve chamber is provided with a urinary catheter adapter for interfacing with a urinary catheter, and the end of the second leg distal from the valve chamber is provided with a drainage adapter for interfacing with a drainage tube adapter of a drainage bag.

9. The medical tee of claim 8, wherein the urethral catheterization connector has a cone section, the outer diameter of the cone section gradually decreases from an end proximal to the valve body to an end distal to the valve body, the outer wall of the cone section being provided with a second external thread;

and/or the drainage joint is a silica gel joint sleeved on the second branch pipe.

10. The medical tee of claim 8, wherein an end of the third leg distal from the valve chamber extends toward a side distal from the first leg.