CN215134739U

CN215134739U - Infusion joint

Info

Publication number: CN215134739U
Application number: CN202120976818.2U
Authority: CN
Inventors: 周潇
Original assignee: Xuanwu Hospital
Current assignee: Xuanwu Hospital
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-12-14
Anticipated expiration: 2031-05-08

Abstract

The utility model relates to an infusion connects, it includes interconnect's first casing and second casing, the inside cavity of first casing and second casing is provided with the cavity, be provided with the valve body that the elasticity material that is used for sealing made in the cavity, a serial communication port, the valve body includes first valve body and second valve body at least, first valve body and second valve body all are provided with the slit that runs through in both sides, wherein, the first terminal surface of first valve body stretches out and fixes the one end at the link from one side opening of first casing, the second terminal surface of first valve body sets up between link and mounting bracket, and hug closely the inner wall of link and the outer wall of mounting bracket.

Description

Infusion joint

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an infusion connects.

Background

In clinical medicine, when a patient needs to be transfused for multiple times, an external indwelling catheter is generally used, and the connection modes of the external indwelling catheter and an infusion apparatus are divided into needle connection and needle-free connection. However, in clinical application, the problems of blockage of an indwelling tube by blood return, complicated heparin sodium tube sealing process, infection related to tube placement and the like occur, meanwhile, the acupuncture of the heparin cap connecting infusion tube easily causes the infection of a nurse by accidental puncture of a steel needle, and for the clinical problems, a needleless infusion joint is mostly adopted at present.

CN 204181950U discloses a needle-free closed type infusion joint. Needleless closed infusion connects, including last casing, lower casing, by last casing and the lower cavity body that the body coupling constitutes with set up in infusion valve in the cavity body, the upper end of going up the casing is equipped with the connector, the lower extreme of casing is equipped with luer outer cone down, infusion valve makes for elastic material, and its upper circular terminal surface stretches out the casing and fixes on the top face of connector, infusion valve's lower circular terminal surface sets up between last casing and the lower casing, and hugs closely the inner chamber wall of last casing and the outer wall of casing down, infusion valve be equipped with infusion utensil luer joint assorted from closed infusion passageway. The needle-free closed infusion connector has good sealing performance no matter in an infusion state connected with an infusion apparatus or a closed state not connected with the infusion apparatus. The technical scheme of this patent has only adopted a closed mode of single rubber valve, can lead to rubber elasticity to reduce when infusion connects long-term the use, causes easily to seal not tight, causes blood backward flow or bacterial infection scheduling problem.

CN 209630327U discloses a needleless closed infusion joint, which comprises an upper shell, a valve body and a lower shell, wherein the upper shell is connected with the lower shell through ultrasonic welding, an upper shell inner cavity is arranged in the upper shell, the valve body is arranged in the upper shell inner cavity, the lower end of the lower shell is a luer conical joint extending out of the upper shell inner cavity, the valve body comprises an upper silica gel valve pad, a lower silica gel valve pad and a connecting pipe which is vertically arranged between the upper silica gel valve pad and the lower silica gel valve pad and can move up and down, and a linear or cross slit is arranged at the center of the upper silica gel valve pad and the lower silica gel valve pad; the connecting pipe is arranged, so that the external transfusion equipment is prevented from directly contacting with the reserved needle, and the external bacteria brought into the blood by the external transfusion equipment is prevented from causing bacterial infection. The technical scheme of this patent has avoided causing the not tight condition of closure when one of them closed mode became invalid through the combination of multiple closed mode, but the structure of the silica gel valve pad of its setting is unreasonable, does not reserve sufficient space for outside infusion pipeline's insertion for medical personnel need expend unnecessary physical power and energy when pulling out to outside infusion pipeline and inserting, has increased medical personnel's work load, has still influenced the life that the infusion connects.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the applicant has studied a lot of documents and patents when making the present invention, but the space is not detailed to list all details and contents, however, this invention never has the prior art features, but on the contrary the invention has all features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to solve is how still to be convenient for the problem of medical personnel's operation when guaranteeing the infusion and connect the leakproofness to guarantee the leakproofness that the infusion connects through setting up multiple sealing measure, and promote medical personnel's operation body through the improvement to valve body and/or outer shell frame structure and feel, thereby avoided blood backward flow and bacterial infection, also realized the lightening of medical personnel's work load simultaneously.

The utility model discloses an infusion connects, it includes interconnect's first casing and second casing, and the inside cavity of first casing and second casing is provided with the cavity, is provided with the valve body that the elasticity material that is used for sealing made in the cavity.

Preferably, the first shell and the second shell are connected by ultrasonic welding.

The valve body includes first valve body and second valve body at least, and first valve body and second valve body all are provided with the slit that runs through in both sides.

The first end face of the first valve body extends out of the opening on one side of the first shell and is fixed at one end of the connecting frame.

The second end face of the first valve body is arranged between the connecting frame and the mounting frame and clings to the inner wall of the connecting frame and the outer wall of the mounting frame.

The mounting bracket is connected to the housing bracket of the first housing.

Preferably, at least one side of the housing holder is provided with a housing recess having a flat-shaped structure.

The circumferential surface of the shell frame is provided with a plurality of grooves in a friction increasing mode and/or is additionally provided with a plurality of convex lines and/or is made of anti-skid materials.

The first valve body and/or the second valve body can be wrapped and connected with the corresponding pipeline in a mode that the corresponding slits are propped by the pipeline.

Preferably, the conduit comprises an external infusion conduit and/or a communication conduit.

The communicating pipeline is arranged in a partial area of the cavity, which is located between the first valve body and the second valve body, and at least one side of the communicating pipeline is connected with a sliding block which can be in sliding connection with the sliding groove.

One end in the sliding groove is connected with a spring, and the other end of the spring is connected with the sliding block.

One side outside the sliding groove is connected with the mounting frame.

The communicating pipeline can be suspended in the cavity through the sliding block in a mode of not contacting the first valve body and/or the second valve body in a non-working state.

The communicating pipeline can be in sealing connection with an external liquid conveying pipeline penetrating through the first valve body in a working state, and can move in the limiting direction of the sliding groove along the sliding block under the driving of the applied force acting on the external liquid conveying pipeline.

The communicating pipeline can pass through the slit of the second valve body under the driving of the external infusion pipeline and is in sealing connection with the infusion channel, so that the hollow areas of the external infusion pipeline, the communicating pipeline and the infusion channel are communicated in a sealing and leakage-free mode.

The outer wall of the infusion channel is circumferentially provided with threads which can be connected with corresponding thread structures.

The axial length of the infusion channel is at least greater than the axial length of the thread.

The utility model has the advantages that:

1. the transfusion joint of the utility model adopts multiple sealing measures in the cavity to avoid the situation that the sealing property can not be ensured when the single sealing measure is invalid, and the sealing property in the transfusion joint is ensured through the combination of a plurality of elastic valve bodies and/or communicating pipelines, thereby avoiding blood backflow and bacterial infection;

2. the utility model designs at least one side of the outer shell frame into a flat structure, and can make the medical personnel more convenient to hold and/or screw when carrying out the transfusion operation by arranging the anti-skid component and/or adopting the measures of anti-skid materials and the like on the outer shell frame, thereby improving the operation body feeling of the medical personnel and lightening the local pressure on the transfusion joint;

3. the utility model discloses an infusion connects when setting up the elasticity valve body in the cavity, improves the optimization to the structure of elasticity valve body for setting up the region at the elasticity valve body can provide the headspace for outside infusion tube's insertion, with guarantee that medical personnel plug outside infusion tube's convenient laborsaving smoothly, thereby when alleviateing medical personnel's work load, can also be through adjusting the life of suitable elasticity degree in order to prolong the elasticity valve body.

Drawings

FIG. 1 is a schematic view of the internal structure of an infusion connector in a preferred embodiment;

fig. 2 is a side view of an infusion connector in a preferred embodiment.

List of reference numerals

100: first housing 110: connecting frame

120: mounting frame 130: outer casing rack

131: housing recess 200: second shell

210: the infusion channel 220: screw thread

300: the valve body 310: first valve body

311: first end face 312: second end face

313: first groove 314: second groove

315: slit 316: intermediates

320: second valve body 400: cavity body

410: communication duct 420: sliding block

430: the sliding groove 440: spring

X: first direction Y: second direction

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

The utility model relates to an infusion joint, as shown in figure 1, the structure of the infusion joint in a preferred embodiment is schematically shown. Fig. 2 is a side view of an infusion connector in a preferred embodiment. The infusion connector comprises a first shell 100 and a second shell 200, wherein the first shell 100 and the second shell 200 are connected along a first direction X by means of ultrasonic welding, and the direction connecting and pointing the first shell 100 to the second shell 200 is defined as the first direction X. The inner cavities of the first casing 100 and the second casing 200 are provided with a cavity 400, wherein the cavity in the first casing 100 is a first cavity, and the cavity in the second casing 200 is a second cavity. A valve body 300 made of an elastic material for sealing may be disposed in the chamber 400, wherein the valve body 300 may include a first valve body 310 disposed in the first chamber and a second valve body 320 disposed between the first chamber and the second chamber. At least a partial region of each of the first valve body 310 and the second valve body 320 is provided with a slit 315 along the first direction X, and preferably, the slit 315 may be provided in a structure gradually narrowing along the first direction X so as to facilitate insertion and extraction of a corresponding pipe in the slit 315.

According to a preferred embodiment, the first valve body 310 may comprise a first end surface 311 and a second end surface 312, wherein the first end surface 311 and the second end surface 312 are two end surfaces of the first valve body 310 in the first direction X, respectively. Alternatively, both the first end surface 311 and the second end surface 312 may be provided as a circular end surface to be adapted to the structure of the first housing 100. The first end surface 311 is protruded from one side opening of the first housing 100 and fixed to one end of the link frame 110. Further, the first end surface 311 may be configured as a non-planar circular structure, wherein a circumferential structure of the circular structure is disposed on the connecting frame 110, and a center of the circumferential structure is recessed along the first direction X, so that a first tapered point is formed on the first end surface 311, and the first tapered point extends along the radial direction to the circumferential structure to form a first groove 313 of the tapered structure. Preferably, the first conical point is provided as an input port to a slit 315 in the first valve body 310. The first end surface 311 with the first groove 313 can facilitate the external infusion tube to find the input port of the slit 315 more quickly and effortlessly when the external infusion tube is inserted into the first valve body 310 along the first direction X. The second end surface 312 is disposed between the connecting frame 110 and the mounting frame 120 and closely attached to the inner wall of the connecting frame 110 and the outer wall of the mounting frame 120, wherein the connecting frame 110 and the mounting frame 120 are both components of the first casing 100, and the first casing 100 may further include an outer casing frame 130 connected to the mounting frame 120. Further, the second end surface 312 may be configured as a non-planar circular structure, wherein a circumferential structure of the circular structure is disposed between the connecting frame 110 and the mounting frame 120, and a center of the circumferential structure is recessed along the first direction X, so that a second taper point is formed on the second end surface 312, and the second taper point extends along the radial direction to the circumferential structure to form a second groove 314 of the arc structure. Preferably, the second taper is provided as an output of a slit 315 in the first valve body 310. The input port and the output port of the slit 315 communicate through the slit 315, and the opening sizes of the input port and the output port can be adaptively adjusted when the external infusion tube is inserted or pulled out. Preferably, the slit 315 in the first valve body 310 presents a slit shape that narrows and closes gradually in the first direction X when the infusion connector is in a non-operating state. The first end surface 311 and the second end surface 312 of the first valve body 310 are connected by an intermediate body 316, wherein the intermediate body 316 can have the largest contact area with the slit 315. When the infusion connector is in a non-working state, the middle body 316 is not contacted with the connecting frame 110 of the first shell 100; when the infusion connector is in an operating state, the slit 315 is expanded with the insertion of the external infusion tube, thereby causing the middle body 316 to approach the connection frame 110 in a direction perpendicular to the first direction X until contacting the connection frame 110.

According to a preferred embodiment, a communication duct 410 is provided in the partial space of the first cavity between the first valve body 310 and the second valve body 320. Preferably, at least one side of the communication duct 410 is provided with a slider 420, so that the communication duct 410 is suspended in the first cavity without contacting the first valve body 310 and/or the second valve body 320 through the sliding connection of the slider 420 and the sliding groove 430. The sliding block 420 slides in the sliding groove 430 connected to the mounting frame 120 in a limited manner along the first direction X or the reverse direction of the first direction X, one end of the sliding groove 430 is connected with a spring 440, and the other end of the spring 440 is connected with the sliding block 420, so that the driving spring 440 generates elastic deformation when the sliding block 420 moves along the first direction X under the driving of the external acting force along with the communicating pipe 410, and the sliding block 420 and the communicating pipe 410 are reset by the elastic force of the spring 440 when the external acting force is removed. The external force applied to the communication pipe 410 is transmitted by the external feeding pipe, which passes through the first valve body 310 to be in contact with and hermetically connected to the communication pipe 410 by the external force. Preferably, a sealing mechanism is provided at the contact end of the external infusion tube and/or the communication tube 410. With further application of external force, the communication pipe 410 may contact the first end surface 311 of the second valve body 320 and pass through the slit 315 of the second valve body 320 to be in sealing connection with the administration path 210. Preferably, a sealing mechanism is provided at the contact end of the infusion channel 210 and/or the communication duct 410.

According to a preferred embodiment, at least one side of the housing holder 130 connected to the mounting holder 120 is provided with a housing groove 131 of a flat-like structure. Preferably, two housing grooves 131 may be formed on the circumferential surface of the housing frame 130 in a manner of increasing friction and/or a plurality of ribs may be added and/or the housing frame may be made of a non-slip material, so as to facilitate the holding and screwing of the medical staff and reduce the local pressure on the housing frame 130. Further, when the two opposite sides of the communicating pipe 410 are connected with the corresponding sliding grooves 430 through the two sliding blocks 420, respectively, the connecting line between the two sliding grooves 430 at opposite positions is the second direction Y perpendicular to the first direction X, and the groove surface of the housing groove 131 of the flat structure is arranged in parallel with the second direction Y, so that the space in the cavity 400 can be fully utilized while holding and screwing the medical staff. The infusion connector side view of fig. 2 is from a side view in a direction parallel to the second direction Y.

According to a preferred embodiment, the structure of the second valve body 320 can also adopt the same or similar structural design as the first valve body 310, so that the sealing effect of the second valve body 320 is also similar to the sealing effect of the first valve body 310. The second valve body 320 may also include a first end surface 311 and a second end surface 312, wherein the first end surface 311 and the second end surface 312 are surfaces of both ends of the valve body 300 in the first direction X. The first end surface 311 of the second valve body 320 may be connected to the first housing 100 and may form a first groove 313, and the second end surface 312 of the second valve body 320 may be connected to the second housing 200 and may form a second groove 314, so as to facilitate the insertion and extraction of a tube from the slit 315 of the second valve body 320, wherein the tube may include one of an external infusion tube and a communication tube 410, and when the communication tube 410 is not disposed in the cavity 400, the external infusion tube directly passes through the first valve body 310 and the second valve body 320 to communicate with the infusion channel 210; when the communication channel 410 is provided in the chamber 400, the communication channel 410 is pushed through the second valve body 320 and communicates with the transfusion channel 210 by an external transfusion channel passing through the first valve body 310.

According to a preferred embodiment, the infusion channel 210 is wrapped by a partial area of the second housing 200 to constitute a luer cone. The outer wall of the infusion channel 210 is circumferentially provided with threads 220, and the threads 220 are not in contact with the circumferential inner wall of the second housing 200 to form a space capable of being abutted against an external device, wherein the external device at least comprises a thread 220 structure capable of corresponding to the threads 220 of the infusion connector and a pipeline structure capable of being hermetically connected with the infusion channel 210. The axial length of the infusion channel 210, seen in the first direction X, is greater than the axial length of the thread 220 to enable a better sealing connection of the infusion channel 210 with the tubing set of the external device.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. An infusion connector, comprising:

a first case (100) and a second case (200) connected to each other,

the inner cavities of the first shell (100) and the second shell (200) are provided with cavities (400),

a valve body (300) made of elastic material for sealing is arranged in the cavity body (400),

it is characterized in that the preparation method is characterized in that,

the valve body (300) at least comprises a first valve body (310) and a second valve body (320), the first valve body (310) and the second valve body (320) are both provided with slits (315) penetrating through two sides, wherein,

the first end face (311) of the first valve body (310) extends out of an opening on one side of the first shell (100) and is fixed to one end of the connecting frame (110), the second end face (312) of the first valve body (310) is arranged between the connecting frame (110) and the mounting frame (120), and clings to the inner wall of the connecting frame (110) and the outer wall of the mounting frame (120).

2. The infusion connector according to claim 1, characterized in that the mounting bracket (120) is connected to a housing bracket (130) of the first housing (100), wherein at least one side of the housing bracket (130) is provided with a housing groove (131) having a flat-like structure.

3. The infusion connection according to claim 2, characterized in that the peripheral surface of the housing frame (130) is provided with grooves in a friction-increasing manner and/or with ridges and/or is made of a non-slip material.

4. Infusion connection according to claim 1, characterized in that the first valve body (310) and/or the second valve body (320) are adapted to enable a wrapped connection of the first valve body (310) and/or the second valve body (320) to a corresponding tubing in such a way that the corresponding slit (315) is opened by the tubing, wherein the tubing comprises an external infusion and/or communication tubing (410).

5. The infusion connection according to claim 4, characterized in that the communication duct (410) is arranged in a partial region of the cavity (400) between the first valve body (310) and the second valve body (320), and a slider (420) slidably connected with a chute (430) is connected to at least one side of the communication duct (410).

6. The infusion connector according to claim 5, characterized in that a spring (440) is connected to one end inside the chute (430), and the other end of the spring is connected to the slider (420), wherein the side outside the chute (430) is connected to the mounting frame (120).

7. The infusion connection according to claim 5, characterized in that the communication duct (410) is able to be suspended inside the cavity (400) by the slider (420) in a non-operating state without contacting the first valve body (310) and/or the second valve body (320).

8. Infusion connection according to claim 7, characterized in that the communication duct (410) in the active state is sealingly connectable to the outer infusion duct through the first valve body (310) and is movable along the slider (420) in a limiting direction of the chute (430) under the drive of a force applied to the outer infusion duct.

9. Infusion connection according to claim 8, characterized in that the communication duct (410) can be driven through the slit (315) of the second valve body (320) by the external infusion duct and is sealingly connected with an infusion channel (210) so that the hollow areas of the external infusion duct, the communication duct (410) and the infusion channel (210) communicate in a sealed and leak-free manner.

10. Infusion connection according to claim 9, characterized in that the outer wall of the infusion channel (210) is circumferentially provided with a thread (220) connectable to a corresponding thread structure, wherein the axial length of the infusion channel (210) is at least larger than the axial length of the thread (220).