CN207614137U - Have the pipe device and infusion device of filtering function - Google Patents

Abstract

The utility model discloses a kind of pipe devices and infusion device having filtering function, the pipe device includes that hard block and one end are embedded in hard tube body in the block, it is provided with fluid apertures on the hard block, one end far from the tube body is set side by side at least two axial elasticity parts on the hard block, and the end set far from the tube body has the radial extension of the center line towards the fluid apertures on each axial elasticity part；It is provided with filter membrane in the fluid apertures.The pipe device and infusion device provided by the utility model for having filtering function, a filter membrane is arranged inside to filter the non-metabolic granule foreign in infusion, on the nozzle for snapping fit onto corresponding infusion device by axial elasticity part and radial extension simultaneously, so will not pipe device be fallen off with larger pressure when ensureing filtering.

Description

Have the pipe device and infusion device of filtering function

Technical field

The utility model is related to medical fields, and in particular to a kind of pipe device and infusion device having filtering function.

Background technology

Pollution of transfusion particles in clinical therapy refers to inputting the non-metabolic granule foreign contained in liquid, diameter in infusion process Small generally 1~15 μm, up to 50-300 μm, these non-metabolic granule foreign some result to be produced big diameter Journey, some is resulted from using process, as the liquid of infusion is directly entered the blood circulation of human body, after larger vein Small capillary network is flowed through, foreign matter is used as in blood circulation, absorption cannot be metabolized, therefore, the harmfulness generated It is serious and lasting.

Infusion or infusion are either injected in the prior art, and corresponding liquid is directly inputted into human vas In, corresponding strobe utility is had no, leads to not eliminate pollution of transfusion particles in clinical therapy.

Utility model content

The purpose of this utility model is to provide a kind of pipe device and infusion device having filtering function, in solution technology Above-mentioned shortcoming.

To achieve the goals above, the utility model provides the following technical solutions：

A kind of pipe device having filtering function, including hard block and one end are embedded in hard tube body in the block, described Fluid apertures is provided on hard block, which is characterized in that one end far from the tube body is set side by side at least two on the hard block A axial elasticity part, the end set far from the tube body has towards the center line of the fluid apertures on each axial elasticity part Radial extension；

It is provided with filter membrane in the fluid apertures.

Above-mentioned pipe device, the fluid apertures are stepped hole, and the filter membrane is fixed at the ladder of the stepped hole.

Above-mentioned pipe device further includes fixed ring, and the peripheral edge portion of the filter membrane is fixed in the fixed ring, described Fixed ring is at the ladder of the stepped hole.

Above-mentioned pipe device further includes crimp rings, and the crimp rings are laminated in the fixed ring.

Annular recess is arranged on the side of the fixed ring in above-mentioned pipe device, is provided in the crimp rings cyclic annular convex It rises, the annular projection is stuck in the annular recess.

Above-mentioned pipe device, the axially extending part and the centerline dip of the fluid apertures are arranged.

A kind of infusion device, including connecting tube, which is characterized in that further include above-mentioned pipe device, set in the connecting tube It is equipped with lug boss, the connecting tube inserts in the fluid apertures, and the lug boss is stuck in the axial elasticity part and radial extension In the clamping space surrounded.

Above-mentioned infusion device, the radial extension fit in the lug boss, the axial elasticity part with it is described There is a radial clearance between lug boss.

Above-mentioned infusion device, the lug boss are the Tapered Cup around the connecting tube.

Above-mentioned infusion device, the infusion device are syringe or liquid-transport pipe-line.

In the above-mentioned technical solutions, the pipe device provided by the utility model for having filtering function, is arranged inside a filter membrane Non- metabolic granule foreign in being infused with filtering, while corresponding infusion dress is snapped fit onto by axial elasticity part and radial extension On the nozzle set, so will not pipe device be fallen off with larger pressure when ensureing filtering.

Since above-mentioned pipe device has above-mentioned technique effect, including the infusion device of the pipe device should also have corresponding skill Art effect.

Description of the drawings

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only described in the utility model Some embodiments, for those of ordinary skill in the art, other drawings may also be obtained based on these drawings.

Fig. 1 is the structural schematic diagram for the pipe device for having filtering function that the utility model embodiment provides；

Fig. 2 is the partial enlarged view at I in Fig. 1；

Fig. 3 is the structural schematic diagram for the infusion device that the utility model embodiment provides.

Reference sign：

1, hard block；2, tube body；3, fluid apertures；4, axial elasticity part；5, radial extension；6, filter membrane；7, fixed ring；8、 Crimp rings；9, annular recess；10, annular projection；11, connecting tube；12, lug boss；13, radial clearance.

Specific implementation mode

In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with attached drawing pair The utility model is further detailed.

As shown in Figs. 1-3, a kind of pipe device having filtering function that the utility model embodiment provides, including hard block 1 and tube body 2 of the one end in the hard block 1, fluid apertures 3 is provided on the hard block 1, which is characterized in that the hard One end far from the tube body 2 is set side by side at least two axial elasticity parts 4 on block 1, separate on each axial elasticity part 4 The end set of the tube body 2 has the radial extension 5 towards the center line of the fluid apertures 3；Filtering is provided in the fluid apertures 3 Film 6.

Specifically, hard block 1 is the arbitrary pipeline location being set on infusion device, such as the root of the syringe needle of injection-tube, Or on liquid-transport pipe-line, tube body 2 is the tubular structure on infusion device, and hard block 1 is fixed on tubular structure, is used for Filter membrane 6 is set and is fixedly connected with corresponding connection target.Hard block 1 is rigid plastics or metal, and tube body 2 is connected to hard On block 1, fluid apertures 3 runs through hard block 1 and tube body 2, and filter membrane 6 is fixed in hard block 1, and filter membrane 6 covers a radial direction of fluid apertures 3 Section, filter membrane 6 are used to filter the non-metabolic granule foreign in injection so that and what it is into human body is injection, to Eliminate injury of the non-metabolic granule foreign to human body.Non- metabolic granule foreign size is minimum (see background technology), such ruler Very little impurity needs to pressurize to injection in filtering, and pipe device in the prior art be directly socketed on it is corresponding defeated On the nozzle of liquid device, the pressure can not be generally born, multiple axial elasticity parts 4 are arranged in the present embodiment on hard block 1, respectively The radial extension 5 towards the center line of the fluid apertures 3 is connected on axial elasticity part 4, in use, 4 housing of axial elasticity part On the nozzle of corresponding infusion device, while radial depressions or projective structure are provided on the nozzle, radial extension 5 is stuck in In the radial depressions or projective structure, the clamping of radial extension 5 and nozzle is so realized, so that hard block 1 is extremely steady Solid snap fit onto on nozzle, larger infusion pressure can be born.In the present embodiment, axial elasticity part 4 preferably there are three, four Or more, multiple being arranged circumferentially along tube body 2 of axial elasticity part 4.Such equilibrium receives pressure.

In the present embodiment, due to needing larger infusion pressure, when infusion be preferred auxiliary power unit such as syringe pump, Infusion pump etc..

In the present embodiment, the end of tube body 2 can be threaded portion to connect other liquid-transport pipe-lines.

The pipe device for having filtering function that the utility model embodiment provides, is arranged inside a filter membrane to filter in infusion Non- metabolic granule foreign, while snapping fit onto by axial elasticity part 4 and radial extension 5 nozzle of corresponding infusion device On, so will not pipe device be fallen off with larger pressure when ensureing filtering.

In the present embodiment, further, the fluid apertures 3 is stepped hole, and the filter membrane 6 is fixed on the rank of the stepped hole At ladder, the marginal portion of filter membrane 6 is located on the ladder of stepped hole, is so on the one hand convenient for location and installation, another aspect ladder Place also allows for more compressing the edge of filter membrane 6.

Further include fixed ring 7 further in the present embodiment, the peripheral edge portion of the filter membrane 6 is fixed on described solid Determine on ring 7, the filter membrane 6 at the ladder of the stepped hole of the fixed ring 7 is fixed in fixed ring 7, and fixed ring 7 is placed into At the ladder of stepped hole, such filter membrane 6 may be implemented to assemble, and the peace of pipe device hard block 1 is carried out at by fixed ring 7 Dress, it is more convenient.

Further include crimp rings 8 further, the crimp rings 8 are laminated in the fixed ring 7, pressed in the present embodiment Tight ring be used for by fixed ring 7 tightly be fixed to hard block 1, sealing structure can be arranged in the marginal portion of compression ring, preferably , it is interference fitted with fluid apertures 3, so that fixed ring 7 is not only firmly connected in fluid apertures 3, but also sealing performance also obtains To ensure.

In the present embodiment, it is preferred that annular recess 9 is set on the side of the fixed ring 7, is arranged in the crimp rings 8 There are annular projection 10, the annular projection 10 to be stuck in the annular recess 9, annular projection 10 and the cooperation of annular recess 9 make It obtains fixed ring 7 and the connection of abutment ring is more firm.

In the present embodiment, further, the axially extending part and the centerline dip of the fluid apertures 3 are arranged, are axially prolonged Part is stretched simultaneously towards axially and radially extending, that is, is tilted and extended, so that the connecting portion space bigger of fluid apertures 3.

As shown in figure 3, a kind of infusion device that the utility model embodiment provides, including connecting tube 11, further include above-mentioned Pipe device, be provided with lug boss 12 in the connecting tube 11, the connecting tube 11 inserts in the fluid apertures 3, the lug boss During 12 are stuck in the axial elasticity part 4 and clamping space that radial extension 5 surrounds.

Specifically, the infusion device is syringe or liquid-transport pipe-line, connecting tube 11 is inserted into the fluid apertures 3 of hard block 1 In, while lug boss 12 is provided in connecting tube 11, such as back taper part or inversed taper platform structure, radial extension 5 is connected in convex It rising on the bottom surface in portion 12 such as pyramidal structure, such realization connecting tube 11 is bonded with hard block 1, when bearing to filter Larger fluid pressure.Since above-mentioned pipe device has above-mentioned technique effect, including the infusion device of the pipe device should also have phase The technique effect answered.

In the present embodiment, further, the radial extension 5 fits in the lug boss 12, the axial elasticity There is a radial clearance 13, radial clearance 13 reserved one changes space, so on the one hand convenient for peace between part 4 and the lug boss 12 Dress, on the other hand provides more deformation spaces for axial elasticity part 4, does not require axial elasticity part 4 that must fit to lug boss On 12, serious forgiveness is promoted.

Above certain exemplary embodiments that the utility model is only described by way of explanation, undoubtedly, for Those skilled in the art can be with a variety of different without departing from the spirit and scope of the utility model Mode is modified described embodiment.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as Limitation to the utility model claims protection domain.

Claims (10)

1. a kind of pipe device having filtering function, including hard block and one end are embedded in hard tube body in the block, described hard Be provided with fluid apertures on mass and tube body, which is characterized in that on the hard block far from the tube body one end be set side by side with to Lack two axial elasticity parts, the end set far from the tube body has the center towards the fluid apertures on each axial elasticity part The radial extension of line；

It is provided with filter membrane in the fluid apertures.

2. pipe device according to claim 1, which is characterized in that the fluid apertures is stepped hole, and the filter membrane is fixed on At the ladder of the stepped hole.

3. pipe device according to claim 2, which is characterized in that further include fixed ring, the peripheral edge portion of the filter membrane It is fixed in the fixed ring, the fixed ring is at the ladder of the stepped hole.

4. pipe device according to claim 3, which is characterized in that further include crimp rings, the crimp rings are laminated in described In fixed ring.

5. pipe device according to claim 4, which is characterized in that annular recess, institute are arranged on the side of the fixed ring It states and is provided with annular projection in crimp rings, the annular projection is stuck in the annular recess.

6. pipe device according to claim 1, which is characterized in that the axially extending part and the center line of the fluid apertures incline Tiltedly arrangement.

7. a kind of infusion device, including connecting tube, which is characterized in that further include claim 1-6 any one of them pipe devices, Lug boss is provided in the connecting tube, the connecting tube inserts in the fluid apertures, and the lug boss is stuck in the axial elasticity In the clamping space that part and radial extension surround.

8. infusion device according to claim 7, which is characterized in that the radial extension fits in the lug boss In, there is a radial clearance between the axial elasticity part and the lug boss.

9. infusion device according to claim 7, which is characterized in that the lug boss is the taper around the connecting tube Part.

10. infusion device according to claim 7, which is characterized in that the infusion device is syringe or woven hose Road.