CN209827791U

CN209827791U - Needleless infusion joint

Info

Publication number: CN209827791U
Application number: CN201920477143.XU
Authority: CN
Inventors: 王五星; 张秋明
Original assignee: Shenzhen Ante Medical Ltd By Share Ltd
Current assignee: Shenzhen Ante Medical Ltd By Share Ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-12-24
Anticipated expiration: 2029-04-08

Abstract

The utility model discloses a needleless infusion connects between transfusion system and indwelling catheter, include: one end of the sleeve is connected with the infusion apparatus; the luer connector is provided with a puncture end and a connecting end which are oppositely arranged, the puncture end is contained in the sleeve and is adjacent to the infusion apparatus, and the connecting end is connected with one end of the sleeve, which is deviated from the infusion apparatus, and is connected with the indwelling catheter; and the elastic sleeve is accommodated in the sleeve and sleeved outside the puncture end, the puncture end is sealed at one end close to the infusion apparatus by the elastic sleeve, a sealing cut is formed in the elastic sleeve, and the puncture end can elastically compress the elastic sleeve at the sealing cut to penetrate out through the sealing cut. The utility model discloses technical scheme's needleless infusion connects aims at making things convenient for medical personnel to carry out the infusion operation to the patient, security when guaranteeing the operation simultaneously.

Description

Needleless infusion joint

Technical Field

The utility model relates to the technical field of medical treatment, in particular to a needleless infusion joint.

Background

At present in-process that needs to treat the patient through a lot of infusions, can generally use to keep somewhere the pipe and keep somewhere on patient's health, medical personnel need will keep somewhere the pipe through infusion connector and connect in the transfusion system, and have exposed syringe needle on the infusion connector, and medical personnel probably cause the injury by exposed syringe needle in the operation process, bring danger to medical personnel's work.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a needleless infusion joint, which aims to facilitate the infusion operation of medical personnel to patients and ensure the safety during the operation.

In order to achieve the above object, the utility model provides a needleless infusion connects and connects in the transfusion system and keep somewhere between the pipe, and needleless infusion connects includes:

one end of the sleeve is connected with the infusion apparatus;

the luer connector is provided with a puncture end and a connecting end which are oppositely arranged, the puncture end is contained in the sleeve and is adjacent to the infusion apparatus, and the connecting end is connected with one end of the sleeve, which is far away from the infusion apparatus, and is connected with the indwelling catheter; and

the elastic sleeve is accommodated in the sleeve and sleeved outside the puncture end, the puncture end is sealed at one end close to the infusion apparatus and provided with a sealing cut, and the puncture end can elastically compress the elastic sleeve at the sealing cut so as to penetrate out of the sealing cut.

In an embodiment of the present application, a guiding inclined plane is disposed at a position, close to the sealing incision, of the elastic sleeve, and the guiding inclined plane is located at a side, facing the puncture end, of the elastic sleeve.

In an embodiment of the present application, the guiding slope is disposed to extend along a circumferential direction of the elastic sleeve.

In an embodiment of the present application, the piercing end has a tapered structure, and the cross-sectional area gradually decreases from the direction away from the sealing incision to the direction toward the sealing incision.

In an embodiment of the present application, the sleeve includes a cylinder neck and a cylinder body which are connected, an inner diameter of the cylinder neck is smaller than an inner diameter of the cylinder body, a stop portion is formed at a transition position of the cylinder neck and the cylinder body, the cylinder neck is connected to the infusion apparatus, and the cylinder body is connected to a connection end of the luer connector;

the elastic sleeve comprises a pressure part and a compression part which are connected, the pressure part is provided with the sealing notch, the pressure part is accommodated in the cylinder neck, and the compression part 32 is accommodated in the cylinder body and is stopped by the stopping part.

In an embodiment of the present application, the outer wall of the compressing portion forms a plurality of layers of annular protrusions, and the plurality of layers of annular protrusions are sequentially arranged along the extending direction of the compressing portion.

In an embodiment of the application, an end of the pressure portion, which is away from the compression portion, elastically compresses an inner side wall of the cylinder neck in a circumferential direction.

In an embodiment of the application, the end face of the pressure part deviating from the compression part is flush with the end face of the cylinder neck deviating from the cylinder body.

In an embodiment of this application, the link is equipped with spacing arch, spacing arch wear to locate in the stack shell, and with stack shell inner wall interference fit.

In an embodiment of the application, luer connects and is equipped with the infusion passageway, the link is connected the tip of keeping somewhere the pipe is seted up and is link up the infusion passageway with the opening of keeping somewhere the pipe, the through-hole of intercommunication infusion passageway is seted up to the lateral wall of puncture end, works as the puncture end passes when sealed incision, the through-hole with the transfusion system intercommunication makes the transfusion system with it is linked together to keep somewhere the pipe.

The technical scheme of the utility model is through providing a needleless infusion connects, including matched with sleeve, luer joint and elasticity external member. When infusion is needed, the sleeve of the needleless infusion joint is connected with an infusion apparatus, and the Ruhr joint is connected with an indwelling needle or an indwelling catheter, so that the liquid medicine in the infusion apparatus can be communicated to the indwelling catheter from the needleless infusion joint. In the process that the infusion apparatus is connected with the sleeve, the infusion apparatus is abutted against the elastic suite and compresses the elastic suite towards the interior of the sleeve, so that the puncturing end of the luer connector elastically stretches the elastic suite at the sealing incision and penetrates through the sealing incision, and the luer connector is communicated with the interior of the infusion apparatus. Because this needleless infusion connects when not connecting the transfusion system, the puncture end of luer connects is sealed by the elasticity external member, and elasticity external member and puncture end all hold inside the sleeve, and medical personnel can't touch the puncture end, can not bring danger to medical personnel. Therefore, the needleless infusion joint of the utility model can not only be conveniently connected with an infusion apparatus and an indwelling catheter, which is convenient for the infusion process to be carried out, but also is safe and reliable in the use process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an explosion structure of an embodiment of the needleless infusion connector of the present invention;

FIG. 2 is a schematic view of the exploded view of the material infusion connector of the present invention from another perspective;

FIG. 3 is a cross-sectional view of the assembly structure of the needleless infusion connector of the present invention;

fig. 4 is a perspective view of the elastic sleeve of the needleless infusion connector in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Needleless infusion joint	22	Connecting end
10	Sleeve barrel	221	Spacing protrusion
				11	Cylinder neck	30	Elastic sleeve
12	Barrel body	31	Pressure part
				13	Stop part	311	Sealing the incision
20	Luer connector	312	Guide slope
				21	Puncture tip	32	Compression part
211	Through hole	321	Annular bulge

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a needleless infusion joint 100.

Referring to fig. 1 to 3, in an embodiment of the present invention, the needleless infusion connector 100 is connected between an infusion set and an indwelling catheter, and includes:

one end of the sleeve 10 is connected with an infusion set;

the luer connector 20 is provided with a puncture end 21 and a connecting end 22 which are oppositely arranged, the puncture end 21 is accommodated in the sleeve 10 and is adjacent to the infusion apparatus, and the connecting end 22 is connected with one end of the sleeve 10, which is far away from the infusion apparatus, and is connected with an indwelling catheter; and

the elastic sleeve 30 is accommodated in the sleeve 10 and sleeved outside the puncture end 21, the puncture end 21 is sealed at one end of the elastic sleeve 30 close to the infusion apparatus and is provided with a sealing notch 311, and the puncture end 21 can elastically compress the elastic sleeve 30 at the sealing notch 311 so as to penetrate through the sealing notch 311.

The utility model discloses an in the embodiment, needleless infusion connects 100 and keeps somewhere the needle and connects the cooperation and arrange in on one's body the patient of infusing many times in the short time of needs, and rethread transfusion system is connected with needleless infusion connects 100 when needs are infused, and for the convenience of being connected between transfusion system and the sleeve 10, the sleeve 10 outer wall can set up the external screw thread, carries out threaded connection through external screw thread and transfusion system for whole process is simple, convenient and fast. In addition, the sealing incision 311 may be a straight incision for easy manufacturing, or a cross incision for facilitating penetration of the puncturing end 21, and it should be noted that a skilled person may also select other connection manners according to actual needs, which is not described herein again. The elastic sleeve 30 is made of silica gel, theoretically, the elastic sleeve 30 can also be made of a material similar to the silica gel, and in addition, the needle-free infusion connector 100 is used for medical purposes, so the silica gel elastic sleeve 30 can be made of medical silica gel. The sleeve 10 and the luer connector 20 are made of plastics, and the needleless infusion connector 100 does not contain any metal material, so that a patient can carry the needleless infusion connector 100 to perform some special tests or treatments, such as nuclear magnetic resonance tests and the like. Of course, other similar materials may be used instead of the above components. It should be noted that, a skilled person may also select other connection modes according to actual needs, and details are not described herein.

The technical scheme of the utility model is through providing a needleless infusion connects 100, including matched with sleeve 10, luer connector 20 and elasticity external member 30. When transfusion is required, the sleeve 10 of the needleless transfusion connector 100 is connected to a transfusion system, and the luer connector 20 is connected to an indwelling needle or an indwelling catheter, so that the drug solution in the transfusion system can be communicated from the needleless transfusion connector 100 to the indwelling catheter. During the process of connecting the infusion set to the sleeve 10, the infusion set abuts against the elastic sleeve 30 and compresses the elastic sleeve 30 towards the inside of the sleeve 10, so that the puncturing end 21 of the luer connector 20 elastically spreads the elastic sleeve 30 at the sealing notch 311 and passes through the sealing notch 311, thereby communicating the luer connector 20 with the inside of the infusion set. When the needleless infusion connector 100 is not connected with an infusion apparatus, the puncture end 21 of the luer connector 20 is sealed by the elastic sleeve 30, and the elastic sleeve 30 and the puncture end 21 are both accommodated in the sleeve 10, so that medical personnel cannot touch the puncture end, and no danger is brought to the medical personnel. Therefore, the needleless infusion joint 100 of the present invention can not only be conveniently connected with an infusion apparatus and an indwelling catheter, which is convenient for the infusion process, but also is safe and reliable in the use process.

In order to facilitate the penetration of the luer 20 out of the sealing slit 311 when compressing the elastic sleeve 30, the elastic sleeve 30 is provided with a guiding bevel 312 near the sealing slit 311, and the guiding bevel 312 is located on the side of the elastic sleeve 30 facing the puncturing end 21. Specifically, referring to fig. 3, by providing the guiding slope 312 on the elastic sleeve 30, the guidance of the guiding slope 312 allows the puncturing end 21 to more easily pass through the sealing incision 311 during the compression process of the elastic sleeve 30.

Further, the guiding inclined plane 312 extends along the circumference of the elastic sleeve 30, and specifically, in order to make the puncturing end 21 more easily pass through the guiding inclined plane 312 of the sealing incision 311, the guiding inclined plane 312 extends along the circumference of the elastic sleeve 30 to form a taper shape, when the puncturing end 21 punctures, the puncturing end 21 further tends to move to the sealing incision 311 along the guiding direction of the guiding inclined plane 312, so that the puncturing end 21 can more easily pass through the sealing incision 311.

In an embodiment of the present invention, the puncturing end 21 is a tapered structure, and the cross-sectional area gradually decreases from the sealing incision 311 to the sealing incision 311. Specifically, referring to fig. 2, when the elastic sleeve 30 is squeezed, in order to facilitate the piercing end 21 to penetrate out of the sealing notch 311, the piercing end 21 is in a tapered structure, because the shape of the piercing end 21 gradually decreases in cross-sectional area from the direction away from the sealing notch 311 to the direction toward the sealing notch 311, and thus the tapered tip is toward the sealing notch 311, and because the smaller the stressed area is, the greater the pressure is provided, the piercing end 21 is more easily penetrated out of the sealing notch 311.

In an embodiment of the present invention, the sleeve 10 includes a neck 11 and a barrel 12 connected to each other, the inner diameter of the neck 11 is smaller than the inner diameter of the barrel 12, a stop portion 13 is formed at a transition position between the neck 11 and the barrel 12, the neck 11 is connected to the infusion apparatus, and the barrel 12 is connected to a connection end 22 of the luer 20;

the elastic sleeve 30 includes a pressure portion 31 and a compression portion 32 connected to each other, the pressure portion 31 has a sealing notch 311, the pressure portion 31 is accommodated in the cylinder neck 11, and the compression portion 32 is accommodated in the cylinder body 12 and stopped by the stopper portion 13.

Further, referring to fig. 2 and 4, the inner diameter of the cylinder neck 11 is smaller than the inner diameter of the cylinder body 12, the outer diameter of the pressure portion 31 of the elastic sleeve 30 is smaller than the outer diameter of the compression portion 32, when the elastic sleeve 30 extends from the end of the cylinder body 12 away from the cylinder neck 11, the pressure portion 31 can extend into the cylinder neck 11, the compression portion 32 can be stopped by the stop portion 13 and accommodated in the cylinder body 12, the stop portion 13 enables the elastic sleeve 30 to extend only from one end of the cylinder body 12, so that the overall structure installation is more convenient, and in addition, due to the arrangement of the stop portion 13, the compression portion 32 is stopped by the stop portion 13, so that the needle-free infusion connector 100 has better sealing performance.

Further, the outer wall of the compressing part 32 forms a plurality of layers of annular protrusions 321, and the plurality of layers of annular protrusions 321 are sequentially arranged in the extending direction of the compressing part 32. In order to further improve the elasticity of the elastic sleeve 30, a plurality of layers of annular protrusions 321 may be disposed on the outer wall of the compression portion 32, and the outer diameter of the plurality of layers of annular protrusions 321 is in contact with and abutted against the inner wall of the sleeve 10 after the compression end is compressed, so as to seal the compressed air in the sleeve 10 and ensure the sealing property.

In an embodiment of the present invention, one end of the pressure portion 31 away from the compression portion 32 elastically compresses the inner sidewall of the cylinder neck 11 along the circumferential direction. Specifically, in order to make the elastic sleeve 30 better seal the needle of the needleless infusion, the pressure portion 31 of the elastic member elastically compresses the inner side wall of the cylinder neck 11 away from one end of the compression portion 32, when the infusion is not needed, the end portion of the pressure portion 31 circumferentially abuts against the inner side wall to achieve sealing due to the elastic force, in addition, considering that the pressure portion 31 needs to move relatively in the actual use process, the friction force is reduced for the convenience of compression, only one end of the pressure portion 31 away from the compression portion 32 elastically compresses the inner side wall of the cylinder neck 11, so that the pressure portion 31 can move conveniently, and in addition, silicone oil can be smeared on the corresponding contact surface for lubrication.

Alternatively, the end face of the pressure portion 31 facing away from the compression portion 32 is flush with the end face of the neck 11 facing away from the barrel 12. Owing to can make needleless infusion syringe needle and keep somewhere needle body coupling when need not the infusion, it is internal to keep somewhere the needle, when needs infusion, then disinfect the one end that deviates from the needle of keeping somewhere needle needleless infusion joint 100, for the convenience of disinfection, the terminal surface that the pressure portion 31 of elasticity external member 30 deviates from the compression end and the terminal surface parallel and level that deviates from stack shell 12 of barrel neck 11, thereby make medical personnel more convenient disinfection, in addition because the coplanar parallel and level, when connecting the transfusion system and infusing, elasticity external member 30 compresses and is, sleeve 10 also can seal the needleless sealing joint better.

In an embodiment of the present invention, the connecting end 22 is provided with a limiting protrusion 221, and the limiting protrusion 221 is disposed in the barrel 12 and is in interference fit with the inner wall of the barrel 12. Specifically, the luer connector 20 may be theoretically installed at the sleeve 10 in various manners, such as bonding or clipping, for convenience of production, a limiting protrusion 221 is provided at the connecting end 22 of the luer connector 20, and for more stability and convenience, the limiting protrusion 221 may be circumferentially disposed, and is installed by contacting, such as interference fit fixing, the limiting protrusion 221 with the inner wall of the barrel 12.

Alternatively, the luer connector 20 is provided with an infusion channel, the end of the connecting end 22 connected with the indwelling catheter is provided with an opening penetrating through the infusion channel and the indwelling catheter, the side wall of the puncturing end 21 is provided with a through hole 211 communicating with the infusion channel, and when the puncturing end 21 passes through the sealing notch 311, the through hole 211 is communicated with an infusion apparatus, so that the infusion apparatus is communicated with the indwelling catheter.

Specifically, referring to fig. 2, in order to make the effect of the puncturing end 21 better, the end of the puncturing end 21 away from the connecting end 22 may be made into a solid structure, an infusion channel is provided in the luer connector 20 for delivering the liquid medicine, when in use, the infusion apparatus is connected to the sleeve 10, the elastic sleeve 30 is pushed downward inside the infusion apparatus, the tip of the puncturing end 21 punctures the sealing incision 311, and the sealing incision 311 is communicated with the infusion apparatus until the through hole 211 exposes out of the sealing incision 311, so that the two ends of the entire needleless infusion connector 100 are communicated, that is, the infusion apparatus is communicated with the indwelling catheter, and at this time, the infusion operation may be performed.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A needleless infusion connector connected between an infusion set and an indwelling catheter, comprising:

one end of the sleeve is connected with the infusion apparatus;

2. The needle-free infusion connector of claim 1, wherein the elastic sleeve is provided with a guide slope near the sealing incision, and the guide slope is positioned on the side of the elastic sleeve facing the puncturing end.

3. The needle-free infusion connector of claim 2, wherein the guide ramp extends circumferentially along the elastomeric sleeve.

4. The needle-free infusion connector according to any one of claims 1 to 3, wherein the piercing end is tapered and has a cross-sectional area that decreases from away from the seal cut to toward the seal cut.

5. The needle-free infusion connector according to any one of claims 1 to 3, wherein the sleeve comprises a cylinder neck and a cylinder body which are connected, the inner diameter of the cylinder neck is smaller than that of the cylinder body, a stop part is formed at the transition position of the cylinder neck and the cylinder body, the cylinder neck is connected with the infusion set, and the cylinder body is connected with the connecting end of the luer connector;

the elastic sleeve comprises a pressure part and a compression part which are connected, the pressure part is provided with the sealing notch, the pressure part is accommodated in the cylinder neck, and the compression part is accommodated in the cylinder body and is stopped by the stopping part.

6. The needle-free infusion connector of claim 5, wherein the outer wall of the compression part is formed with a plurality of layers of annular protrusions, the plurality of layers of annular protrusions being arranged in series along the extension direction of the compression part.

7. The needle-free infusion connector of claim 5, wherein an end of the pressure part facing away from the compression part elastically compresses an inner side wall of the barrel neck in a circumferential direction.

8. The needle-free infusion connector of claim 5, wherein an end surface of the pressure part facing away from the compression part is flush with an end surface of the neck facing away from the barrel.

9. The needle-free infusion connector according to claim 5, wherein the connecting end is provided with a limiting protrusion, and the limiting protrusion is arranged in the barrel body in a penetrating way and is in interference fit with the inner wall of the barrel body.

10. The needle-free infusion connector according to claim 1, wherein the luer connector is provided with an infusion channel, the end of the connecting end connected with the indwelling catheter is provided with an opening penetrating through the infusion channel and the indwelling catheter, the side wall of the puncturing end is provided with a through hole communicating with the infusion channel, and when the puncturing end passes through the sealing notch, the through hole communicates with the infusion apparatus, so that the infusion apparatus communicates with the indwelling catheter.