CN212651143U

CN212651143U - Hemodialysis concentrate anti-pollution closing cap

Info

Publication number: CN212651143U
Application number: CN202020523763.5U
Authority: CN
Inventors: 王和平; 陆萍; 周兰华; 周怡君
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2021-03-05
Anticipated expiration: 2030-04-11

Abstract

An anti-pollution sealing cover for hemodialysis concentrated solution comprises an inner cover and an outer cover, wherein the inner cover and the outer cover are in flat cylinder shapes integrally; the inner wall of the inner cover is provided with a first internal thread, the outer wall of the opening of the hemodialysis concentrated solution barrel body is correspondingly provided with a first external thread, and the sealing cover is sealed and covered on the opening of the barrel body through the first internal thread and the first external thread which are matched with each other; the inner cover is provided with an inner cover hole, the inner side edge of the inner cover hole is provided with an elastic sealing element, the outer cover can be rotatably covered on the inner cover, and the inner cover hole can be opened and closed.

Description

Hemodialysis concentrate anti-pollution closing cap

Technical Field

The utility model relates to a medical liquid medicine bung, in particular to driving fit lid for hemodialysis belongs to medical instrument technical field.

Background

In recent years, with the increase in population, the incidence of end-stage renal patients who develop disease in a population proportion has increased year by year, and the blood purification industry has received close attention from the medical community at home, and particularly for the treatment of critically ill patients, the main approach taken is kidney replacement, and hemodialysis therapy is the basis of kidney replacement.

Although domestic medical technology and equipment for blood purification have been developed greatly at present, there are many problems in practical use, for example, the concentrated solution used in hemodialysis is generally liquid, and even if the raw materials are sterile and pyrogen-free, the microbial contamination of the concentrated solution for hemodialysis can be caused by improper operation or storage in the preparation or use process. At present, after most of hemodialysis concentrated solutions in a dialysis chamber are unsealed and used, a barrel cover is separated from a barrel body. When hemodialysis treatment is carried out on a hemodialysis patient, A, B two kinds of concentrated solutions are needed, the AB liquid suction rods of the hemodialysis machine are different in thickness and specification, after the covers of the hemodialysis concentrated solutions are opened, the AB liquid suction rods are placed in the concentrated solutions, and the cover holes are almost completely exposed in the air; the concentrated solution is placed beside a dialysis machine for 1-4 hours after the cover of the concentrated solution is opened, and is easily polluted by microorganisms, and when the temperature is higher, the B solution is easily volatilized. After being repeatedly exposed in the air for a long time, the hemodialysis concentrated solution used within 4 hours is monitored for endotoxin detection, bacterial culture and the like, and the A concentrated solution exposed in the air is polluted by dust and impurities, and the B concentrated solution exposed in the air has bacterial indexes and endotoxin detection results which do not accord with national standards.

Therefore, the problem to be solved in the industry is urgent, how to innovate the anti-pollution sealing cover of the hemodialysis concentrated solution, develop the anti-pollution sealing cover with good quality and easy operation, and realize clinical popularization and use.

Disclosure of Invention

To the deficiency of the prior art, the utility model provides a hemodialysis concentrate is anti-pollution to close and covers.

In order to achieve the above object, the utility model provides a following technical scheme:

As a further improvement of the utility model, the outer cover covers the inner cover in a horizontal rotating mode.

As a further improvement of the utility model, the outer wall of the inner cover on the side away from the barrel body is provided with a second external thread, the inner wall of the outer cover is correspondingly provided with a second internal thread, and the outer cover is screwed and fixed on the inner cover through the second internal thread and the second external thread which are mutually matched; the position of the outer cover corresponding to the inner cover hole is provided with an outer cover hole, the inner cover hole and the outer cover hole are all provided with eccentric holes deviating from the circle center of the cover surface, and when the outer cover rotates horizontally, the inner cover hole and the outer cover hole can be staggered completely, so that the effect of complete sealing is achieved.

As a further improvement of the utility model, the size ratio of the inner cover and the outer cover along the central axis direction is 1.2-2: 1.

As a further improvement of the utility model, the diameter of the cover surface of the inner cover and the outer cover is at least 2 times of the diameter of the hole of the inner cover and the hole of the outer cover.

As a further improvement of the utility model, the outer cover covers the inner cover in an up-and-down turning mode.

As a further improvement of the utility model, a rotating shaft connected with the inner cover is arranged at one side edge of the outer cover, the outer cover can rotate up and down around the rotating shaft, and the other side of the outer cover is a free end; the inner cover is characterized in that an annular clamping pin extends downwards in the middle of the inner wall of the outer cover, an inner cover hole in the inner cover is formed into a concentric circular hole with the cover surface, an annular clamping groove extends outwards along the periphery of the inner cover hole, and when the outer cover is closed, the annular clamping pin is clamped and fixed with the annular clamping groove.

As the utility model discloses further improvement, annular bayonet lock sets up to interior low outer high two rings, and during the closed enclosing cover, annular bayonet lock inner circle and annular bayonet lock outer lane closely laminate on annular bayonet lock wall, produce both sides subtend extrusion effort to play better sealed effect.

As a further improvement of the utility model, the rotating angle of the outer cover is between 0 degrees and 100 degrees, and the free end on one side of the outer cover is provided with a brim.

As a further improvement of the utility model, the elastic sealing element is a silica gel ring with a cross hole in the middle. The silica gel ring is provided with the cross hole, so that the silica gel ring can be in interference fit with the AB liquid suction rod, and a better sealing effect is achieved.

Compared with the prior art, the utility model discloses following technological effect has:

1. when the hemodialysis concentrated solution is unsealed for use, the barrel cover is always connected with the barrel body. When 1-2 parts of barreled concentrated solution is remained, the nurse takes out the AB liquid suction rod of the dialysis machine, and slightly rotates the outer cover of the anti-pollution sealing cover or slightly closes the outer cover, so that the effect of sealing the concentrated solution can be immediately achieved.

2. The silica gel ring with the cross hole in the middle is arranged at the position of the inner cover hole, when the anti-pollution sealing cover barrel cover is connected with the barrel body all the time, because the silica gel ring is in interference fit with the AB liquid suction rod, the dialysate can be effectively prevented from being polluted and volatilized, the change of the components of the concentrated solution is avoided, and the infection incidence rate of a patient is reduced.

3. The utility model discloses can avoid using the dislysate to receive the pollution, reduce B liquid volatilization rate, make things convenient for the nurse to operate, improve patient's hemodialysis quality moreover, reduce the patient and admit the rate once more because of infecting.

Drawings

Fig. 1 is a schematic top view of a first embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention;

fig. 4 is a partially enlarged view of a portion I in fig. 3.

In the above drawings, 1 and 101 are outer covers, 2 and 102 are inner covers, 3 and 103 are first internal threads, 4 and 104 are inner cover holes, 5 are silica gel rings, 105 are sealing films, 6 is second external threads, 7 is second internal threads, 8 is an outer cover hole, 9 is a rotating shaft, 10 is an annular bayonet lock, 11 is an annular clamping groove, 12 is a brim, 13 is an annular bayonet lock outer ring, and 14 is an annular bayonet lock inner ring.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, the present invention includes an inner cap 2 and an outer cap 1, wherein the inner cap 2 and the outer cap 1 are flat cylinders. An inner cover hole 4 with the diameter of 15mm is arranged on the inner cover 2, and the outer cover 1 can horizontally rotate to open or close the inner cover hole 4. The wall thickness of the outer cover 1 is 2mm, an outer cover hole 8 with the diameter of 18mm is formed in the position, corresponding to the inner cover hole 4, of the outer cover 1, and the inner cover hole 4 and the outer cover hole 8 are both arranged to be eccentric holes deviating from the circle center of the cover surface. Inner cup 2 inner wall is equipped with first internal thread 3, and inner cup 2 is kept away from and is equipped with second external screw thread 6 on the staving one side outer wall, and the corresponding second internal thread 7 that is equipped with of 1 inner wall of enclosing cover, enclosing cover 1 close soon through the second internal thread 7 and the second external screw thread 6 of mutually supporting to be fixed on inner cup 2.

The diameter of the inner cover 2 is 46mm, and the inner cover 2 consists of two parts, wherein one part is hollow, and the wall thickness of the hollow part is 2 mm. The other part is solid and 15mm high, and is connected with the inner cover wall into a whole, the lower end of the inner cover wall is provided with a thread for a circle, and the height of the thread is 15mm, so that the hemodialysis concentrated solution barrel can be tightly sealed conveniently.

The silica gel ring 5 is arranged at the inner side edge of the inner cover hole 4, the silica gel ring 5 is bought outside, a cross hole is formed in the middle of the silica gel ring, and the silica gel ring is in interference fit with the AB liquid suction rod, so that the sealing effect is achieved. The diameter of the silica gel ring 5 is 15mm, and the height is 12 mm.

In use, the outer cap 1 is rotated until the outer cap hole 8 coincides with the inner cap hole 4. After the hemodialysis concentrated solution is used, the outer cover 1 is rotated to the other side, the inner cover hole 4 is closed, and the hemodialysis concentrated solution is prevented from being polluted and volatilized to cause component change. Because the inner cover hole 4 and the outer cover hole 8 are eccentric holes, when the outer cover 1 is rotated horizontally, the inner cover hole 4 and the outer cover hole 8 can be staggered completely, and therefore the effect of complete sealing is achieved.

Example 2

As shown in fig. 3 and 4, the present invention includes an inner lid 102 and an outer lid 101, and the inner lid 102 and the outer lid 101 are flat cylindrical as a whole. The outer cover 101 and the inner cover 102 are connected into a whole, and a rotating shaft 9 connected to the inner cover 102 is arranged at the edge of one side of the outer cover 101 and covers the inner cover 102 in an up-down turning manner.

The diameter of the inner cover 102 is 46mm, the wall thickness of the inner cover 102 is 4mm, the height of the inner cover 102 is 15mm, and a first internal thread 103 is arranged on the inner wall of the inner cover 102. An inner cover hole 104 with the diameter of 15mm and the wall thickness of 1mm is arranged at the middle position of the upper cover of the inner cover 102, and a sealing film 105 is arranged on the inner cover hole 104.

The wall thickness of the outer cover 101 is 2mm, the annular bayonet 10 extends downwards in the middle of the inner wall of the outer cover 101, the annular bayonet 10 is arranged into two circles with low inside and high outside, and the annular bayonet 11 extends outwards along the periphery of the inner cover hole 104 on the inner cover 102.

When in use, the outer cover 101 is turned outwards, the rotation angle of the outer cover 101 is between 0 and 100 degrees, and the outer cover 101 is closed immediately after use. The annular bayonet lock inner ring 14 and the annular bayonet lock outer ring 13 are tightly attached to the wall of the annular bayonet lock 11 to generate opposite extrusion acting force on two sides, so that a better sealing effect is achieved. The free end of one side of the outer cover 101 is provided with a brim 12 with the length of 3mm, so that a nurse can conveniently open and close the outer cover.

Claims

1. An anti-pollution sealing cover for hemodialysis concentrated solution comprises an inner cover and an outer cover, wherein the inner cover and the outer cover are in flat cylinder shapes integrally; the inner wall of the inner cover is provided with a first internal thread, the outer wall of the opening of the hemodialysis concentrated solution barrel body is correspondingly provided with a first external thread, and the sealing cover is sealed and covered on the opening of the barrel body through the first internal thread and the first external thread which are matched with each other; the inner cover is provided with an inner cover hole, and the inner side edge of the inner cover hole is provided with an elastic sealing element.

2. The hemodialysis concentrate contamination-prevention sealing cover according to claim 1, wherein: the outer cover covers the inner cover in a horizontal rotating mode.

3. The hemodialysis concentrate contamination-prevention sealing cover according to claim 2, wherein: a second external thread is arranged on the outer wall of one side, away from the barrel body, of the inner cover, a second internal thread is correspondingly arranged on the inner wall of the outer cover, and the outer cover is screwed and fixed on the inner cover through the second internal thread and the second external thread which are matched with each other; the position of the outer cover corresponding to the inner cover hole is provided with an outer cover hole, the inner cover hole and the outer cover hole are all provided with eccentric holes deviating from the circle center of the cover surface, and when the outer cover is rotated horizontally, the inner cover hole and the outer cover hole can be completely staggered.

4. The hemodialysis concentrate contamination-prevention sealing cover according to claim 3, wherein: the size ratio of the inner cover to the outer cover along the central axis direction is 1.2-2: 1.

5. The hemodialysis concentrate contamination-prevention sealing cover according to claim 4, wherein: the diameters of the cover surfaces of the inner cover and the outer cover are at least 2 times of the diameters of the hole of the inner cover and the hole of the outer cover.

6. The hemodialysis concentrate contamination-prevention sealing cover according to claim 1, wherein: the outer cover covers the inner cover in a vertically-overturning mode.

7. The hemodialysis concentrate contamination-prevention sealing cover according to claim 6, wherein: a rotating shaft connected to the inner cover is arranged on one side edge of the outer cover, the outer cover can rotate up and down around the rotating shaft, and the other side of the outer cover is a free end; the inner cover is characterized in that an annular clamping pin extends downwards in the middle of the inner wall of the outer cover, an inner cover hole in the inner cover is formed into a concentric circular hole with the cover surface, an annular clamping groove extends outwards along the periphery of the inner cover hole, and when the outer cover is closed, the annular clamping pin is clamped and fixed with the annular clamping groove.

8. The hemodialysis concentrate contamination-prevention sealing cover according to claim 7, wherein: the annular clamping pin is arranged into two rings with a low inner part and a high outer part, and when the outer cover is closed, the inner ring of the annular clamping pin and the outer ring of the annular clamping pin are tightly attached to the wall of the annular clamping pin.

9. The hemodialysis concentrate contamination-prevention sealing cover according to claim 8, wherein: the rotating angle of the outer cover is 0-100 degrees, and the free end of one side of the outer cover is provided with a brim.

10. The hemodialysis concentrate contamination-prevention sealing cap according to claim 2 or 6, wherein: the elastic sealing element is a silica gel ring with a cross hole in the middle.