CN217014936U - Adapter - Google Patents

Abstract

The utility model describes an adapter, which is of a cylindrical structure, wherein one end of the adapter is inserted into a needle tube, and the other end of the adapter is sleeved with a catheter; the center of the end face of the needle tube insertion end of the adapter is inwards sunken to form a central groove; a through hole which penetrates through the center of the central groove along the axial direction is used for inserting and fixing the needle tube; the center of the end face of the catheter sleeving end of the adapter presents a cylindrical bulge towards the appearance, and the catheter is sleeved on the cylindrical bulge; the axial direction of the cylindrical bulge is provided with a channel communicated with the through hole of the central groove. In the utility model, the needle tube insertion end of the adapter is inserted into the needle tube and then connected with the medicine bottle, the catheter sleeving end is connected with the catheter, and the medicine liquid in the medicine bottle can flow to the catheter through the needle tube, the through hole and the channel in sequence. The central groove of the needle tube insertion end limits the medicine bottle, so that the needle tube can be reliably inserted into the medicine bottle, and the possibility that the needle tube shakes or falls off in the process of infusion is reduced.

Description

Adapter

Technical Field

The utility model relates to an adapter.

Background

In the medical field or the medical beauty field, a drug solution is generally stored in a drug bottle, and when the drug solution is required to be used, the drug solution is generally taken out of the drug bottle by a syringe or an infusion set having a needle tube. The infusion apparatus generally comprises a needle tube capable of being inserted into a medicine bottle and an infusion tube connected with the needle tube, and liquid medicine in the medicine bottle can flow out along the needle tube and the infusion tube.

Typically, the tubing and the needle are connected together by an adapter. The adapter typically consists of a needle hub connected to a needle and a tubing hub connected to the tubing. However, in the infusion apparatus using such a structure, there is a possibility that the needle tube may shake or fall off from the medicine bottle during the infusion process, which further affects the stability of the infusion.

Therefore, there is a need for an adapter that improves the stability of the connection between the needle cannula and the vial during the infusion process.

Disclosure of Invention

The present invention has been made in view of the above-described conventional circumstances, and an object thereof is to provide an adapter capable of improving the stability of connection between a needle tube and a vial.

Therefore, the utility model provides an adapter which is of a cylindrical structure, wherein one end of the adapter is inserted into a needle tube, and the other end of the adapter is sleeved with a catheter; the center of the end face of the needle tube insertion end of the adapter is inwards recessed to form a central groove; a through hole which penetrates through the center of the central groove along the axial direction is formed in the center of the central groove, and the needle tube is inserted and fixed; the center of the end face of the catheter sleeving end of the adapter presents a cylindrical bulge towards the appearance, and the catheter is sleeved on the cylindrical bulge; the axial direction of the cylindrical protrusion is provided with a channel which is communicated with the through hole of the central groove.

In the utility model, the needle tube insertion end of the adapter is inserted into the needle tube and then connected with the medicine bottle, the catheter sleeving end is connected with the catheter, and the medicine liquid in the medicine bottle can flow to the catheter through the needle tube, the through hole and the channel in sequence. The central groove at the insertion end of the needle tube limits the medicine bottle, so that the needle tube is reliably inserted into the medicine bottle, and the possibility that the needle tube shakes or falls off in the process of infusion is reduced.

In addition, in the adaptor according to the present invention, optionally, the central groove is filled with a fixing stabilizing member, and the needle tube is inserted into the through hole of the central groove through the stabilizing member; the stabilizing member protrudes or is flush with the top surface of the central recess. From this, can fix the medicine bottle through firm.

In addition, in the adaptor according to the present invention, optionally, the inner wall of the central groove is provided with an internal thread, which is matched with an external thread located on the outer wall of the bottle mouth of the medicine bottle. Thereby, the vial and the central recess can form a threaded connection, thereby reducing the likelihood of relative wobble of the vial and the adaptor or needle cannula.

In addition, in the adaptor according to the present invention, optionally, the outer diameter of the cylindrical protrusion matches the inner diameter of the catheter; or the diameter of the passage of the cylindrical protrusion is matched with the outer diameter of the catheter. Therefore, the catheter can be embedded or sleeved on the columnar protrusion at the sleeving end of the catheter so as to enable the catheter to be communicated with the adapter.

In addition, in the adaptor according to the present invention, optionally, an annular protrusion is provided at a predetermined distance from the outer periphery of the cylindrical protrusion on the end surface of the catheter coupling end of the adaptor, and the annular protrusion surrounds the cylindrical protrusion. In this case, when the catheter is externally sheathed with the sheathing member or the locking member, the annular protrusion can be coupled with the sheathing member or the locking member.

In addition, in the adaptor according to the present invention, optionally, the facing edge of the conduit socket end of the adaptor is recessed inwards to form an edge groove. This can reduce the weight of the adaptor.

In the adaptor according to the present invention, an anti-slip concave-convex surface may be provided on an outer periphery of the adaptor. This can reduce the possibility of the adaptor slipping during use.

In addition, in the adaptor according to the present invention, optionally, the stud protrusion, the adaptor, and the central groove are coaxial. Thereby, the adaptor is easy to manufacture. In addition, the channel structure for communicating the needle tube and the catheter can be simple, and the possibility of the liquid medicine remaining in the adapter is reduced.

According to the utility model, the adaptor can improve the connection stability of the needle tube and the medicine bottle.

Drawings

The utility model will now be explained in further detail by way of example only with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram illustrating the connection of an adapter to a needle cannula and a catheter in accordance with an embodiment of the present invention.

Fig. 2 is a diagram showing an application scenario of the adaptor according to the embodiment of the present invention.

Fig. 3 is a schematic view showing an adaptor according to an embodiment of the present invention.

Fig. 4 is a partial sectional view showing an adaptor according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view showing an adaptor according to an embodiment of the present invention through a central axis.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same components are denoted by the same reference numerals, and redundant description thereof is omitted. The drawings are schematic and the ratio of the dimensions of the components and the shapes of the components may be different from the actual ones.

It should be noted that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover any process, method, system, article, or apparatus that comprises or comprises a list of steps or elements without limitation, but may include or include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In addition, the subtitles and the like referred to in the following description of the present invention are not intended to limit the content or the scope of the present invention, and serve only as a cue for reading. Such a subtitle should neither be understood as a content for segmenting an article, nor should the content under the subtitle be limited to only the scope of the subtitle.

Embodiments of the present invention relate to an adaptor. In some examples, the adapter may also be referred to as an adapter or an adapter assembly, etc., hereinafter simply referred to as an adapter. The adapter piece can be applied to various medical instruments and has the function of conveying liquid medicine, is particularly suitable for the field of intermediate frequency therapeutic instruments, and guides bottled liquid medicine or nutrient solution for treatment to the surface of the skin of a human body.

Fig. 1 is a view showing an application scenario of an adaptor 10 according to an embodiment of the present invention. Fig. 2 is a schematic diagram showing the adapter 10 connected to the needle cannula 20 and the catheter 30 according to the embodiment of the present invention. Fig. 3 is a schematic diagram showing the adaptor 10 according to the embodiment of the present invention.

Referring to fig. 1, in some examples, the adaptor 10 of the present invention is adapted to direct a medical fluid from a vial 40 through a conduit 30.

Referring to fig. 2 and 3, in some examples, adaptor 10 may be inserted into needle cannula 20 at one end and sleeved with catheter 30 at the other end. In some examples, the end used to insert the syringe 20 may be referred to as the syringe insertion end 110. In some examples, the end for sleeving with catheter 30 may be referred to as catheter hub end 120. In some examples, needle cannula insertion end 110 may communicate with catheter hub end 120. It should be noted that there need not be a strict boundary between the needle cannula insertion end 110 and the catheter hub end 120.

In some examples, the interposer 10 may exhibit a cylindrical structure.

In some examples, needle cannula insertion end 110 may be fitted with needle cannula 20 and connected to vial 40. In some examples, the center of the end face of the needle cannula insertion end 110 may be recessed inwardly to form a central recess 111. In some examples, the vial 40 may be detachably connected to the adaptor 10 in a snap-fit manner with the central recess 111. In some examples, the central recess 111 may match the shape of the mouth of the vial 40. In some examples, the central recess 111 is provided with a through hole 112 extending axially therethrough for inserting and fixing the needle cannula 20. In some examples, the medical fluid in the vial 40 may flow through the needle cannula 20 to the adapter 10. In some examples, the through hole 112 may be located in the center of the central groove 111.

Fig. 4 is a partial sectional view showing the adaptor 10 according to the embodiment of the present invention. Fig. 5 is a cross-sectional view showing the adaptor 10 according to the embodiment of the present invention through a central axis.

In some examples, the end face of the catheter hub end 120 is convexly convex outward in the center. Considering that the catheter 30 is a generally circular tube, here the end face of the catheter hub end 120 is outwardly convex forming a cylindrical protrusion 121. In some examples, the conduit 30 may be sleeved over the cylindrical protrusion 121. In some examples, the outer diameter of the cylindrical protrusion 121 may match the inner diameter of the catheter 30. In some examples, the diameter of the channel 130 at the cylindrical protrusion 121 may match the outer diameter of the catheter 30. Thereby, the catheter 30 can be fitted or sleeved to the cylindrical protrusion 121 of the catheter coupling end 120 to communicate the catheter 30 with the adaptor 10.

In some examples, the cylindrical protrusion 121 may be axially provided with a passage 130 (see fig. 5) communicating with the through hole 112 of the central groove 111. That is, needle cannula insertion end 110 and catheter hub end 120 may communicate through passageway 130.

In the present invention, the needle tube insertion end 110 of the adaptor 10 is inserted into the needle tube 20 and then connected to the medicine bottle 40, the catheter hub end 120 is connected to the catheter 30, and the medicine liquid in the medicine bottle 40 can flow to the catheter 30 through the needle tube 20, the through hole 112 and the channel 130 in sequence. The central recess 111 of the needle cannula insertion end 110 limits the medicine bottle 40, so that the needle cannula 20 can be reliably inserted into the medicine bottle 40, and the possibility that the needle cannula 20 shakes or falls off during the infusion process is reduced.

In some examples, the vial 40 may be removably connected to the adapter 10. In some examples, the vial 40 may be threadably coupled to the adaptor 10. Specifically, referring to fig. 4, in some examples, the outer wall of the mouth of the vial 40 may have external threads. In some examples, the inner wall of the central recess 111 is provided with an internal thread matching the external thread. Thereby, the vial 40 and the central recess 111 can form a threaded connection, thereby reducing the possibility of relative wobble of the vial 40 and the adaptor 10 or needle cannula 20.

In some examples, the catheter cuff end 120 end face of the adapter 10 may be provided with an annular protrusion 122 at a predetermined distance from the outer circumference of the cylindrical protrusion 121. In some examples, the annular protrusion 122 may surround the stud protrusion 121. In this case, when the catheter 30 is externally sheathed with a protection member or a locking member, the annular protrusion 122 can be coupled with the protection member or the locking member. In some examples, the inner wall of the annular protrusion 122 facing the cylindrical protrusion 121 and the end face of the catheter hub 120 form a groove, which may have the same effect as the central groove 111. In some examples, the height of the columnar protrusions 121 may be not less than the height of the annular protrusions 122. Thereby, the difficulty of disposing the guide tube 30 on the stud protrusion 121 can be reduced.

In some examples, the catheter hub end 120 of the adapter 10 facing edge may be recessed inwardly to form an edge groove 123. This can reduce the weight of the adaptor 10.

In some examples, the adaptor 10 may be provided with slip-resistant reliefs on the periphery. In some examples, the outer circumference of the adaptor 10 may be provided with slip-resistant strips. This can reduce the possibility of the adaptor slipping during use.

In some examples, the stud protrusion 121, the adaptor 10, and the central recess 111 may be coaxial. Thereby, the adaptor 10 is easy to manufacture. In addition, the passage 130 for communicating the needle tube 20 and the catheter 30 can be made simple in structure, and the possibility of the medical fluid remaining in the adaptor 10 can be reduced. In some examples, the stud bumps 121 and the central groove 111 may not be coaxial to accommodate different scene requirements.

In some examples, the central axis of the channel 130 may be a curve. Thus, the needle cannula insertion end 110 and the catheter hub end 120 can be oriented according to different scenarios.

Referring to fig. 5, in some examples, the channel 130 may be cylindrical. In some examples, the central axis of the channel 130 may be a straight line. In some examples, the channel 130 may have multiple sections with different inner diameters.

In some examples, the central groove 111 may be filled with the fixing firmness. In some examples, the needle cannula 20 is inserted through the stabilizing member and into the through bore 112 of the central recess 111. In some examples, the stabilizing member may protrude, or be flush, with the top surface of the central groove 111. Thereby, the medicine bottle 40 can be fixed by the fixing member.

According to the present invention, the adaptor 10 can be provided which improves the stability of connection between the needle tube 20 and the vial 40.

While the utility model has been described in detail in connection with the drawings and examples, it is to be understood that the above description is not intended to limit the utility model in any way. Those skilled in the art can make modifications and variations as necessary without departing from the true spirit and scope of the utility model, and such modifications and variations are intended to be within the scope of the utility model.

Claims (8)

1. The adapter is characterized in that the adapter is of a cylindrical structure, one end of the adapter is inserted into a needle tube, and the other end of the adapter is sleeved with a catheter; the center of the end face of the needle tube insertion end of the adapter piece is inwards sunken to form a central groove; a through hole which penetrates through the center of the central groove along the axial direction is formed in the center of the central groove, and the needle tube is inserted and fixed; the center of the end face of the catheter sleeving end of the adapter presents a cylindrical bulge towards the appearance, and the catheter is sleeved on the cylindrical bulge; the axial direction of the cylindrical protrusion is provided with a channel which is communicated with the through hole of the central groove.

2. The adapter of claim 1,

the central groove is filled with and fixed with a fixing piece, and the needle tube penetrates through the fixing piece and is inserted into the through hole of the central groove; the stabilizing member protrudes from, or is flush with, the top surface of the central recess.

3. The adapter of claim 1,

the inner wall of the central groove is provided with an internal thread which is matched with an external thread positioned on the outer wall of the bottle mouth of the medicine bottle.

4. The adapter of claim 1 wherein,

the outer diameter of the cylindrical protrusion is matched with the inner diameter of the conduit; or the diameter of the passage of the cylindrical protrusion is matched with the outer diameter of the catheter.

5. The adapter of claim 1 wherein,

the catheter of the adapter is sleeved on the end face, an annular bulge is arranged at a preset distance of the periphery of the cylindrical bulge, and the annular bulge surrounds the cylindrical bulge.

6. The adapter of claim 1 wherein,

the facing edge of the sleeve end of the catheter of the adapter piece is recessed inwards to form an edge groove.

7. The adapter of claim 1 wherein,

the periphery of the adaptor is provided with an anti-skidding concave-convex surface.

8. The adapter of claim 1 wherein,

the cylindrical protrusion, the adaptor and the central groove are coaxial.

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