CN216394772U - Tee bend subassembly suitable for nutrition supply pipeline - Google Patents

Abstract

A tee joint component suitable for a nutrition supply pipeline relates to the technical field of medical instruments and comprises a tee joint main body, a sleeve body, a sealing cover piece and an adapter, wherein the tee joint main body comprises a main pipeline and an auxiliary pipeline communicated with the main pipeline; the cover sealing piece comprises a cover body and an extension part connected with the cover body, the extension part is of an annular structure, the annular structure can extend into the annular cavity, and the annular structure is provided with a first external thread matched with the threaded hole; the adapter is used for communicating syringe and auxiliary line, and the adapter is provided with the second external screw thread with screw hole assorted. The three-way assembly for the nutrient supply line can avoid to some extent the connection with the wrong infusion device in order to avoid the infusion of the wrong drug.

Description

Tee bend subassembly suitable for nutrition supply pipeline

Technical Field

The utility model relates to the field of medical instruments, in particular to a three-way component suitable for a nutrient supply pipeline.

Background

At present, a tee joint is generally used in the operation of nutrient supply, wherein two interfaces of the tee joint are respectively connected with a nutrient tube for the inlet and the outlet of nutrient solution, so that the nutrient solution can be transmitted through the tee joint. When medicine is required to be added into the nutrient solution, the nutrient tube extends into the third interface of the tee joint so as to inject the medicine into the tee joint, and the medicine is mixed with the nutrient solution flowing through the tee joint and then flows out.

However, since the tee used in the nutrition supply operation is generally a universal piece, it is difficult to distinguish the tee in the nutrition supply line from the tee in other lines (e.g., intravenous lines), with the risk of delivering the drug to the wrong line at the time of dosing.

SUMMERY OF THE UTILITY MODEL

The object of the utility model is to provide a three-way assembly for a nutrient supply line which to a certain extent avoids connection to a wrong input device.

The utility model is realized by the following steps:

a tee joint component suitable for a nutrition supply pipeline comprises a tee joint main body, a sleeve body, a sealing cover piece and an adapter, wherein the tee joint main body comprises a main pipeline and a secondary pipeline communicated with the main pipeline, the sleeve body is sleeved on the secondary pipeline, the sleeve body is provided with a threaded hole, an annular cavity is formed between the inner wall of the threaded hole and the outer side wall of the secondary pipeline, the sealing cover piece comprises a cover body and an extension part connected with the cover body, the extension part is of an annular structure, the annular structure can extend into the annular cavity, and the annular structure is provided with external threads matched with the threaded hole; the adapter is used for with the syringe with the auxiliary line intercommunication, the adapter be provided with screw hole assorted external screw thread.

In a possible embodiment, the jacket body is connected to the secondary pipe in a rotatable manner, the jacket body being able to rotate relative to the secondary pipe about the axis of the secondary pipe.

In a feasible implementation scheme, the outer side surface of the auxiliary pipeline is provided with an annular groove, one end of the sleeve body is provided with a clamping ring, and the clamping ring extends into the annular groove.

In a possible embodiment, the sheath is a unitary structure with the secondary conduit.

In a possible embodiment, the outer side of the end of the secondary pipeline remote from the main pipeline is provided with a chamfer.

In a possible embodiment, the tee body and the sheath are both made of a hard material.

In a possible embodiment, the end of the main pipe is provided with a chamfer inside.

In one possible embodiment, the main pipe inner diameter is 3.5-5.0 mm.

In a possible embodiment, the three-way assembly further comprises a connecting band, and the connecting band is respectively connected with the sleeve body and the cover sealing piece.

In a possible embodiment, the connecting band includes a band body, a first connecting ring, and a second connecting ring, the first connecting ring is sleeved on the sleeve body, the second connecting ring is sleeved on the cap body, and the connecting band is respectively connected with the first connecting ring and the second connecting ring.

The beneficial effects of the utility model at least comprise:

the application provides a tee bend subassembly suitable for nutrition supply pipeline is at the in-process that uses, and the both ends of the main pipeline of tee bend main part are used for being connected with the nutrition pipe respectively, and when need not to input other material, the extension of closing cap spare stretches into between accessory line and the cover body, and with cover body threaded connection, be about to the accessory line is sealed. When medicine is required to be injected into the nutrition pipeline, the sealing cover piece is taken down, one end, provided with the external thread, of the infusion apparatus extends into the annular cavity, and the infusion apparatus is in threaded connection with the sleeve body. On one hand, the wall thickness of the end part of the infusion apparatus is required to a certain extent through the annular cavity, on the other hand, the external thread structure of the infusion apparatus is required to a certain extent through the internal thread of the sleeve body, and only the infusion apparatus with the external thread structure matched with the three-way component can be connected with the three-way component so as to inject medicine through the three-way component. Thus, the connection of a wrong infusion device can be avoided.

In addition, if must use ordinary syringe to inject the medicine, then at the sub-pipeline connection adapter, the one end of adapter stretches into annular chamber and is connected with the adapter, and the other end is used for being connected with the syringe, and this moment, owing to increased the adapter in tee bend subassembly, consequently make tee bend subassembly and the tee bend that uses in other pipelines have apparent difference in the outward appearance to be convenient for distinguish, reduce because of the risk of the wrong injection improper medicine of other tee bends of recognition.

In summary, the three-way component provided by the application can reduce the risk of injecting improper drugs due to the wrong three-way to a certain extent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed 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 invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a tee assembly according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a tee assembly provided in accordance with an embodiment of the present invention;

fig. 3 is a first schematic structural diagram of a tee body according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a tee body according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a tee body provided in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of an assembly of a tee body and a bushing body according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a glove body according to an embodiment of the present invention;

FIG. 8 is a first schematic structural view of a closure member according to an embodiment of the present invention;

FIG. 9 is a second schematic structural view of a closure member according to an embodiment of the present invention;

FIG. 10 is a third schematic structural view of a closure member according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of an adapter according to an embodiment of the present invention.

In the figure:

100-a tee body; 110 — main pipeline; 120-secondary line; 121-chamfering; 122-ring groove; 123-a first projection; 124-a second projection;

200-a sleeve body; 210-a threaded hole; 220-anti-slip structure;

300-a closure member; 310-external thread; 320-a cover body; 330-an extension;

400-an adapter; 410-a screwed end; 420-a transfer end; 430-fins; 440-baffles.

Detailed Description

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

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

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 invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the products of the present invention usually put when in use, are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, 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 "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

First embodiment

Referring to fig. 1 to 11, the present embodiment provides a three-way assembly suitable for a nutrition supply pipeline, which includes a three-way main body 100, a sheath 200, a sealing cover 300 and an adaptor 400, wherein the three-way main body 100 includes a main pipeline 110 and a secondary pipeline 120 communicated with the main pipeline 110, the sheath 200 is sleeved on the secondary pipeline 120, the sheath 200 has a threaded hole 210, an annular cavity is formed between an inner wall of the threaded hole 210 and an outer side wall of the secondary pipeline 120, the sealing cover 300 includes a cover body 320 and an extension portion 330 connected to the cover body 320, the extension portion 330 is an annular structure, the annular structure can extend into the annular cavity, and the annular structure has an external thread 310 matched with the threaded hole 210; adapter 400 is used to communicate the syringe with secondary tubing 120, and adapter 400 is provided with external threads 310 that mate with threaded bore 210.

In the using process of the three-way assembly for the nutrient supply pipeline, two ends of the main pipeline 110 of the three-way main body 100 are respectively used for being connected with the nutrient tubes, and when other substances are not required to be input, the extension part 330 of the sealing cover 300 extends into the space between the secondary pipeline 120 and the sleeve body 200 and is in threaded connection with the sleeve body 200, i.e. the secondary pipeline 120 is sealed. When it is desired to inject a drug into the feeding line, the cap member 300 is removed, the end of the infusion device provided with the external thread 310 is extended into the annular chamber, and the infusion device is screwed into the sheath 200. Namely, on one hand, the annular chamber has certain requirements on the wall thickness of the end part of the infusion apparatus, on the other hand, the internal thread of the sleeve body 200 has certain requirements on the structural style of the external thread 310 of the infusion apparatus, and only the infusion apparatus with the structure of the external thread 310 matched with the three-way component can be connected with the three-way component so as to inject medicine through the three-way component. Thus, the connection of a wrong infusion device can be avoided.

In one possible embodiment, the sheath 200 and the tee body 100 are made of a hard material. The hard material may be ABS (acrylonitrile butadiene styrene), rigid PUR (polyurethane), rigid PVC (polyvinyl chloride) or PC (polycarbonate). The three-way body 100 and the sleeve body 200 made of hard materials have small deformation even can be ignored in the screwing process, so that the wrong connection between pipelines can be avoided through the structural shape and the size.

In a possible embodiment, the sheath 200 and the auxiliary pipe 120 are an integral structure, and specifically, the sheath 200 and the auxiliary pipe 120 may be integrally formed during the manufacturing process, or after the sheath 200 and the auxiliary pipe 120 are separately manufactured, the sheath 200 is sleeved on the auxiliary pipe 120, and one end of the sheath 200 is fixedly connected to the outer side surface of the auxiliary pipe 120, for example, by bonding.

Alternatively, in a preferred embodiment, the jacket 200 is rotatably connected to the secondary line 120. Specifically, the jacket body 200 is disposed coaxially with the secondary pipe 120, and the jacket body 200 is rotatable about a common axis thereof with respect to the secondary pipe 120. So set up for when being connected other infusion apparatus with cover body 200, the accessible rotates cover body 200 with infusion apparatus and cover body 200 spiro union and need not to rotate infusion apparatus, can avoid infusion apparatus's pipeline structure to take place to twist reverse or bend when infusion apparatus contains pipeline structure, is convenient for connect the operation.

In one possible embodiment, as shown in fig. 5, the outer side of the secondary pipe 120 is provided with a ring groove 122, and the ring groove 122 is arranged coaxially with the secondary pipe 120. One end of the sleeve body 200 is provided with a snap ring, and the snap ring extends into the annular groove 122. Thus, the ring groove 122 respectively plays a role in limiting the sleeve body 200 in the radial direction and the axial direction of the secondary pipeline 120, and when the sleeve body 200 rotates relative to the secondary pipeline 120, the snap ring rotates relative to the ring groove 122.

As shown in fig. 2, the snap ring may be located at an end of the jacket body 200 and protrude in an axial direction.

In one possible embodiment, the ring groove 122 may be a groove cut downward on the outer side surface of the secondary pipe 120. Alternatively, as shown in fig. 3-5, the annular groove 122 may be defined by a structure protruding upward on the outer side of the secondary pipe 120. Specifically, a first protrusion 123 and a second protrusion 124 are axially spaced apart from each other on an outer side surface of the sub-pipe 120, and an annular groove 122 is formed between the first protrusion 123 and the second protrusion 124. The first protrusion 123 and the second protrusion 124 may be both annular protrusions, or the first protrusion 123 includes a plurality of first protrusions, the plurality of first protrusions are circumferentially distributed at intervals on the outer side surface of the secondary pipeline 120, and each first protrusion is located at the same axial position of the secondary pipeline 120. Therefore, the plurality of first bumps enclose an annular convex structure. The second protrusion 124 includes a plurality of second protrusions, which enclose an annular protrusion structure like the first protrusions, and the second protrusion 124 is located at a position different from the position of the first protrusion 123 in the axial direction of the secondary pipe 120. An annular groove 122 is formed between the annular protrusion structure surrounded by the first protrusion 123 and the annular protrusion structure surrounded by the second protrusion 124.

Of course, in other possible embodiments, the secondary pipe 120 and the jacket body 200 may be connected by a bearing or a structure similar to a bearing, so that the jacket body 200 can rotate relative to the secondary pipe 120.

As shown in fig. 5, an outer side surface of one end of the secondary pipeline 120 away from the main pipeline 110 is provided with a chamfer 121. This arrangement facilitates alignment when capping the cap member 300 or when connecting the three-way assembly to other infusion devices.

As shown in fig. 2 and 5, in a possible embodiment, the inner side of the end of main pipe 110 is provided with a chamfer, so that the chamfer is arranged to play a role of guiding to a certain extent, so as to facilitate the insertion of the external pipe inside main pipe 110 to connect with main pipe 110.

In one possible embodiment, main conduit 110 has an inner diameter of 3.5-5.0 mm.

In a possible embodiment, the tee assembly further comprises connecting straps (not shown), which are connected to the housing 200 and the cap member 300, respectively. The connecting band is made of a flexible material or a material with certain toughness or elasticity, and two ends of the connecting band are respectively connected with the sheath body 200 and the cover sealing member 300 to limit the maximum distance between the sheath body 200 and the cover sealing member 300. That is, after the cap member 300 is separated from the jacket body 200, the cap member 300 can be located beside the jacket body 200 due to the connection of the connection band, so as to facilitate the search, and thus the cap member 300 can be found more quickly when the cap member 300 needs to be covered on the jacket body 200 and the secondary pipe 120.

Alternatively, in another embodiment, a connecting band may be connected between the secondary line 120 and the cover member 300, the connecting band being used to limit the cover member 300 within a set range beside the secondary line 120, the set range depending on the length of the connecting band.

The connecting belt can be made of various materials such as nylon, silica gel, rubber, plastics or cotton.

For example, taking the connecting band connected between the covering body 200 and the covering member 300 as an example, in one embodiment, the connecting band includes a band body, a first connecting ring sleeved on the covering body 200, and a second connecting ring sleeved on the covering member 300, and the band body is connected with the first connecting ring and the second connecting ring respectively.

Correspondingly, in order to facilitate the sleeving of the first connection ring and the second connection ring, an annular first connection groove is provided on the outer side of the sleeve body 200, and an annular second connection groove is provided on the outer side of the cap member 300, the first connection groove is coaxial with the sleeve body 200, and the second connection groove is coaxial with the cap member 300. The first connecting ring cover is established the first connecting groove of the cover body 200 in, and the inner ring of first connecting ring stretches into first connecting groove, and the lateral wall of first connecting groove plays the axial and radial limiting displacement along first connecting ring to first connecting ring. The second connecting ring is sleeved with the second connecting groove, the inner ring of the second connecting ring extends into the second connecting groove, and the side wall of the second connecting groove plays a radial and axial limiting role along the second connecting ring for the second connecting ring. The first coupling ring is rotatable with respect to the first coupling groove, and the second coupling ring is rotatable with respect to the second coupling groove. With this arrangement, when the cap member 300 is screwed with the sleeve body 200, the cap member 300 or the sleeve body 200 is screwed, and the first connecting ring and the second connecting ring can keep the original position without rotating, thereby preventing the tape body from twisting.

In fig. 1 to 6, the main pipe 110 and the sub-pipe 120 are both straight pipes, but are not limited thereto, and in other embodiments of the present embodiment, the main pipe 110 and the sub-pipe 120 may be pipes having other shapes, such as a spiral pipe, a wavy pipe, a bent pipe, and the like.

As shown in fig. 7 and 8, in the preferred embodiment of the present embodiment, the anti-slip structures 220 are disposed on the outer sides of the covering member 300 and the sheath body 200, and the anti-slip structures 220 may be grooves or protrusions, or may be made of flexible pads. The anti-slip structure 220 in fig. 7 and 8 is a protrusion, the anti-slip structure 220 is formed on the outer surface of the covering body 200 and the covering member 300, and the anti-slip structure 220 extends along the axial direction of the corresponding covering body 200 or covering member 300 to facilitate the screwing operation of the covering body 200 or covering member 300.

As shown in fig. 11, the adapter 400 includes a tubular main body structure, one end of which is a screw-on end 410, and the other end of which is an adapter end 420, wherein the screw-on end 410 is provided with external threads 310; the transition end 420 mates with a syringe to communicate with the syringe. In order to facilitate communication between the adapter 400 and the sub-pipe 120 and to screw the adapter 400 and the sleeve body 200 together, a fin 430 is provided on a side portion of the main body structure of the adapter 400, and the fin 430 extends in an axial direction away from the adapter 400. The provision of fins 430 facilitates rotation of adapter 400. Further, a baffle 440 is provided on the outside of the body structure of the adapter 400, the baffle 440 serving to define the maximum depth of extension of the adapter 400 into the annular chamber.

As shown in fig. 6, 9 and 10, in one embodiment, in the above-described nasal prong assembly:

the secondary pipeline 120 is provided with the sleeve body 200, and the projection distance a between the end face of the secondary pipeline 120 far away from the main pipeline 110 and the outermost side edge of the internal thread of the sleeve body 200 is 1mm-1.2mm, so that the alignment operation is convenient.

The auxiliary pipeline 120 is provided with a conical part, the outer contour surface of the conical part is conical, the conical part is positioned in a partial region of the auxiliary pipeline 120 opposite to a region provided with threads in the sleeve body 200, the axial length of the conical part is 3.72mm-3.92mm, the conicity is 6%, and the outer diameter of the conical part is 5.59mm-5.69mm, so that the error connection with the inner diameter of a male cone head of 8.5mm of the anesthesia breathing equipment can be avoided.

The depth b of the annular chamber formed between the jacket body 200 and the secondary pipe 120 is 6.82mm or more.

The chord length of the small diameter of the thread at the opening of the conical part closest to the annular chamber is 0.25mm-1.5mm, so that the connection with the joints of blood vessels and breathing pipelines is avoided, and the thread bridging is avoided when the thread is axially connected with the external thread 310 structure of the matched nutrition pipeline.

The sleeve body 200 is internally provided with internal threads, the end faces of the outermost sides of the internal threads are inclined planes from outside to inside, and the included angle between the inclined planes and the straight line of the diameter of the sleeve body 200 is less than or equal to 40 degrees, so that thread bridging is avoided when the sleeve body is connected with the external threads 310 of the matched nutrition pipelines in a non-axial direction.

The inner diameter of the secondary conduit 120 is less than 8.5 mm.

In the sealing member 300, the inner wall of the extension portion 330 is tapered, the inner diameter of the extension portion 330 is smaller than 8.5mm, and the taper is 6% to match with the outer side surface of the auxiliary pipeline 120, so as to be conveniently sleeved on the outer side surface of the auxiliary pipeline 120.

The axial length c of the extension 330 is 6.9mm-11 mm.

The chord length of the major diameter of the thread at the beginning of the external thread 310 (i.e., the end that first contacts the internal thread during threading) is 0.25mm to 1.5 mm.

The end surface at the beginning of the external thread 310 is a bevel, the included angle d between the bevel and the diameter of the extension 330 is less than or equal to 40 °.

The outer diameter e of the closure member 300 is 13.3mm or more.

Further, the adapter 400 or other structures matching the internal threads of the sheath 200 are provided with structures having the same size and structure as the extension 330.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The tee joint component is suitable for a nutrition supply pipeline and is characterized by comprising a tee joint main body, a sleeve body, a sealing cover piece and an adapter, wherein the tee joint main body comprises a main pipeline and a secondary pipeline communicated with the main pipeline; the cover sealing piece comprises a cover body and an extension part connected with the cover body, the extension part is of an annular structure, the annular structure can extend into the annular cavity, and the annular structure is provided with a first external thread matched with the threaded hole; the adapter is used for with the syringe with the auxiliary line intercommunication, the adapter be provided with screw hole assorted second external screw thread.

2. The tee assembly adapted for use with a nutritional supply conduit according to claim 1, wherein said housing is rotatably coupled to said secondary conduit, said housing being rotatable relative to said secondary conduit about an axis of said secondary conduit.

3. The three-way assembly for a nutrient supply pipeline according to claim 2, wherein an annular groove is formed on the outer side surface of the secondary pipeline, and a snap ring is arranged at one end of the sleeve body and extends into the annular groove.

4. The tee assembly adapted for use with a nutrient supply line of claim 1, wherein said housing is a unitary structure with said secondary line.

5. Three-way assembly suitable for a nutrient supply line according to claim 1, characterized in that the outer side of the end of the secondary line remote from the main line is provided with a chamfer.

6. The tee assembly adapted for use with a nutritional supply conduit according to claim 1, wherein the tee body and the housing are both made of a rigid material.

7. Three-way assembly suitable for a nutrient supply line according to claim 1, characterized in that the inside of the end of the main line is provided with a chamfer.

8. Three-way assembly suitable for a nutrient supply line according to claim 1, wherein the internal diameter of the main line is 3.5-5.0 mm.

9. The tee assembly adapted for use with a nutritional supply line of claim 1, further comprising a connecting strap connected to said housing and said cap member, respectively.

10. The tee assembly adapted for use with a nutrient supply line of claim 9, wherein said connector strap comprises a strap body, a first connector ring and a second connector ring, said first connector ring being sleeved over said housing body, said second connector ring being sleeved over said closure body, said strap body being connected to said first connector ring and said second connector ring, respectively.

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