CN203263902U

CN203263902U - Improved resin blood perfusion device

Info

Publication number: CN203263902U
Application number: CN 201320245535
Authority: CN
Inventors: 黄志峰; 朱宏静
Original assignee: ZHONGSHAN LIKA PLASTICS Co Ltd
Current assignee: Jafron Biomedical Co Ltd
Priority date: 2013-05-08
Filing date: 2013-05-08
Publication date: 2013-11-06
Anticipated expiration: 2023-05-08

Abstract

The utility model discloses an improved resin blood perfusion device which comprises a perfusion device body, wherein the perfusion device body comprises an inner-hollow and two-end-open filtration chamber and sealing devices arranged at the two ends of the filtration chamber; each sealing device comprises an outlet assembly and a lock nut; the lock nuts are connected with the end parts of the filtration chamber through thread structures; limit steps corresponding to the lock nuts are arranged on the outer side surface of the filtration chamber. When the lock nuts tightly press the outlet assemblies to seal the outlet assemblies on the openings at the end parts of the filtration chamber, the lower ends of the lock nuts press onto the limit steps; by limiting the screwing depth of the lock nuts, sealing pieces in the outlet assemblies are enabled to keep pace with the circular compressive deformation of the lock nuts; the sealing effect is ensured; the contact end surfaces of the spacing steps and the lower ends of the lock nuts are inclined surfaces providing certain rebounding force to the lock nuts; the lock nuts are enabled to be self-locked, and cannot lose due to the vibration; the asepsis condition in the perfusion device can be ensured.

Description

A kind of modified model blood perfusion device

Technical field

This utility model relates to a kind of modified model blood perfusion device.

Background technology

hemoperfusion is the important component part of blood purification therapy, it is that blood with the patient is drawn out to external, and contact with adsorbent in blood perfusion device, mode with absorption is removed some exogenous and endogenic poisonous substance, reach the therapeutic purposes that purify the blood, the blood perfusion device of current application normally is comprised of a filter and the screw-threaded coupling sealing cover structure that is arranged on filter two ends, yet the mode that this screw-threaded coupling sealing cover structure normally adopts single thread to connect, single threaded coupling mechanism force can be concentrated to screw thread origin or beginning or end usually, make the thrust skewness of seal cover, the concordance of sealing is not high, the effect of sealing is bad, seepage easily occurs, and in the process of transportation, seal cover is easily because vibration produces loosening, even break away from, be difficult to guarantee the aseptic condition in filter.

Summary of the invention

In order to overcome the deficiencies in the prior art, this utility model provides a kind of modified model blood perfusion device, this blood perfusion device have the sealing high conformity, not easy to leak, locking effect good, be difficult for the characteristics such as loosening.

The technical scheme that its technical problem that solves this utility model adopts is:

a kind of modified model blood perfusion device, comprise the perfusion device main body, described perfusion device main body comprises the filter chamber of an inner hollow both ends open and is arranged on the closing device at two ends, filter chamber, described closing device include the spout assembly that can be connected with outer tube and can described spout assembly press seal to the filter chamber open-ended locking nut, described locking nut is connected by a helicitic texture locking with the end, filter chamber, be provided with the limited step corresponding with locking nut on the lateral surface of described filter chamber, when described locking nut is open-ended in the filter chamber the spout assembly press seal, described locking nut lower end is pressed on limited step.

Under described limited step and locking nut, the end face of end in contact is an inclined-plane.

Described spout assembly comprises filter screen, sealing gasket, the end cap that is arranged on successively between the open-ended and locking nut in filter chamber, the output mouth of pipe that is provided with a conducting filter chamber on described end cap and can be connected with outer tube.

Described helicitic texture is the double thread structure.

Described helicitic texture is the single thread structure.

The beneficial effects of the utility model are: be provided with the limited step corresponding with locking nut on the lateral surface of filter chamber, when locking nut is open-ended in the filter chamber the spout assembly press seal, described locking nut lower end is pressed on limited step, limited step plays position-limiting action to locking nut, it is the screw-in depth of limiting lock jack panel, make be locked being consistent of compression annular of nut of sealing member in spout assembly, the high conformity of sealing guarantees the effect of its sealing.

Further, under limited step and locking nut, the end face of end in contact is an inclined-plane, and the inclined-plane by this limited step can provide certain bounce to locking nut, make the locking nut self-locking, in transportation, can because vibration is become flexible, not guarantee the sealed, sterile state in perfusion device.

Description of drawings

Below in conjunction with drawings and Examples, this utility model is further illustrated.

Fig. 1 is the structural representation of a specific embodiment of the present utility model;

Fig. 2 is the decomposing schematic representation of this utility model Fig. 1 embodiment;

Fig. 3 is the structural representation of the filter chamber of this utility model Fig. 1 embodiment.

The specific embodiment

referring to figs. 1 through Fig. 3, Fig. 1 to Fig. 3 is the structural representation of a specific embodiment of this utility model, as shown in the figure, a kind of modified model blood perfusion device, comprise perfusion device main body 1, described perfusion device main body 1 comprises the cylindrical shape filter chamber 2 of an inner hollow both ends open and is arranged on the closing device 3 at 2 two ends, filter chamber, described closing device 3 include the spout assembly that can be connected with outer tube and can described spout assembly press seal to the filter chamber 2 open-ended locking nuts 31, described locking nut 31 is connected by helicitic texture 4 lockings with 2 ends, filter chamber, described spout assembly comprises the filter screen 32 that is arranged on successively between the open-ended and locking nut 31 in filter chamber 2, sealing gasket 33, end cap 34, the output mouth of pipe 341 that is provided with a conducting filter chamber 2 on described end cap 34 and can be connected with outer tube, blood enters in filter chamber 2 through the closing device 3 of an end, dispose adsorbent in filter chamber 2, blood is exported by the closing device 3 of the other end after adsorbent absorption again, can complete the process of blood purification.

as shown in the figure, be provided with a limited step 5 corresponding with locking nut 31 on the external cylindrical surface of described filter chamber 2, described locking nut 31 the spout assembly press seal in the filter chamber 2 when open-ended, described locking nut 31 lower ends are pressed on

limited step

5, 31 position-limiting actions of 5 pairs of locking nuts of limited step, it is the screw-in depth of limiting lock jack panel 31, make sealing gasket 33, be locked being consistent of compression annular of nut 31 of filter screen 32 edges, the high conformity of sealing, guarantee the effect of its sealing, during batch production, still can maintain higher product percent of pass.

Further, described limited step 5 is an inclined-plane 51 with the end face of 31 times end in contact of locking nut, certain bounce is provided for locking nut 31 by the inclined-plane 51 of this limited step 5, make locking nut 31 self-lockings, in transportation, can because vibration is become flexible, not guarantee the sealed, sterile state in perfusion device.

As shown in the figure, in the present embodiment, helicitic texture 4 between

locking nut

31 and 2 ends, filter chamber is the double thread structure, the double thread structure has the advantages that coupling mechanism force is evenly distributed, therefore in the present embodiment, the thrust annular spread of 31 pairs of end caps 34 of locking nut, sealing gasket 33, filter screen 32 comparatively evenly, further improve the sealing property of spout assembly, be difficult for occuring seepage.

Certainly in specific implementation process, this helicitic texture 4 also can adopt traditional single thread structure or other multi start thread structure, does not describe in detail one by one at this.

Above better enforcement of the present utility model is illustrated; certainly; this utility model can also adopt form different from the embodiment described above; these do not consist of any restriction to present embodiment; therefore those of ordinary skill in the art should belong in protection domain of the present utility model the conversion that is equal to of doing under the prerequisite of this utility model spirit or corresponding the change.

Claims

1. modified model blood perfusion device, comprise perfusion device main body (1), it is characterized in that: described perfusion device main body (1) comprises the filter chamber (2) of an inner hollow both ends open and is arranged on the closing device (3) at two ends, filter chamber (2), described closing device (3) include the spout assembly that can be connected with outer tube and can described spout assembly press seal to the filter chamber (2) open-ended locking nut (31), described locking nut (31) is connected by a helicitic texture (4) locking with end, filter chamber (2), be provided with the limited step (5) corresponding with locking nut (31) on the lateral surface of described filter chamber (2), described locking nut (31) is when (2) are open-ended in the filter chamber the spout assembly press seal, described locking nut (31) lower end is pressed on limited step (5).

2. a kind of modified model blood perfusion device according to claim 1 is characterized in that: described limited step (5) is an inclined-plane (51) with the end face of the lower end in contact of locking nut (31).

3. a kind of modified model blood perfusion device according to claim 1, it is characterized in that: described spout assembly comprises filter screen (32), sealing gasket (33), the end cap (34) that is arranged on successively between the open-ended and locking nut (31) in filter chamber (2), the output mouth of pipe (341) that is provided with a conducting filter chamber (2) on described end cap (34) and can be connected with outer tube.

4. a kind of modified model blood perfusion device according to claim 1 is characterized in that: described helicitic texture (4) is the double thread structure.

5. a kind of modified model blood perfusion device according to claim 1 is characterized in that: described helicitic texture (4) is the single thread structure.