CN214911358U - Novel anti loosening structure's blood purification adsorber shell - Google Patents

Abstract

The utility model discloses a novel anti loosening structure's blood purification adsorber shell, including casing and the cap of spiro union at this casing both ends, the position that the periphery of casing is close to its both ends is equipped with first thread respectively, the end of first thread is equipped with prevents to change the shell fragment, the position that corresponds this prevention on the perisporium of cap changes the shell fragment is equipped with positioning channel section, during the assembled state prevent to change the shell fragment card and go on fixing a position in this positioning channel section. The utility model discloses when screwing up the cap on the casing, prevent to change the shell piece and can block and go on spacingly in going into positioning channel section, can realize self-locking function after the spiral cover is accomplished, and can not force the forcible and tear open, in case break open then this structure destruction, the product can not continue to use, it can not become flexible to have guaranteed between casing and the cap, the product leakproofness is better, need not increase extra point and glue solidification technology, make production technology more simplistic, the quality of product has obtained effective guarantee, the cost is saved, the probability that the defective products produced has been reduced.

Description

Novel anti loosening structure's blood purification adsorber shell

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to novel anti loosening structure's blood purification adsorber shell.

Background

In recent years, with the development of material civilization, the health consciousness of people is gradually improved, and people pay more attention to life health rather than only clothing and eating. According to data statistics, the incidence rate of the end-stage renal diseases in China is about 100 persons/million people. The metabolic function of the kidney of a patient with the kidney disease is seriously disturbed, and metabolic waste in the body cannot be discharged out of the body and is accumulated in the blood of the human body, thus seriously endangering the life safety of the patient. Aiming at the phenomena that patients with kidney diseases are more and the life quality of the patients is low, a treatment mode aiming at purifying blood is rapidly developed. Blood purification refers to a therapeutic method in which blood in a human body is taken out of the body, is contacted with an adsorption medium in an adsorber, and endogenous or (and) exogenous toxins in the blood are removed in a physical adsorption, chemical adsorption and biological loading manner, and then the blood is sent back to the human body.

The adsorber consists of an adsorption medium and a shell thereof, wherein the shell comprises a shell body and shell cover end-sealing devices at two ends; the cap end-sealing device consists of a cap body, a filter screen, a sealing gasket, a blood nozzle cap and a sealing plug. In the production preparation process of adsorber, casing and cap receive high temperature, high pressure and appear micro-deformation in the sterilization process, cause screw locking power to descend, and the cap is not hard up, leads to the product to seal badly, and the filling liquid seepage has increased the microorganism and has got into the risk, and aseptic validity is difficult to guarantee.

In order to ensure that the shell of the adsorber and the shell cover are not loosened, the prior art adds a dispensing and curing process between the shell and the shell cover, and the operation comprises the following steps: 1. the production process is more complicated;

2. the glue dispensing process is influenced by factors such as the operation proficiency of operators, operation methods, individual moods and the like, so that the glue dispensing process is unstable; the unstable dispensing process causes the product to be sterilized under high temperature and high pressure, so that the locking force of the shell cover thread can not meet the requirement, the product is not sealed well, and the filling liquid leaks;

3. the glue photocuring effect is influenced by factors such as the distance between the glue injection position of the adsorber and the light source of the curing lamp and the irradiation position, the insufficient illumination easily causes incomplete glue curing, the corrosion phenomenon can occur to the threaded structure, the thread locking force is reduced, and the shell cover is loosened.

Disclosure of Invention

To the technical problem that exists at present, the utility model provides a novel anti loosening structure's blood purification adsorber shell to solve among the prior art because the problem that the structural constraint leads to.

In order to achieve the purpose of the invention, the utility model provides the following technical scheme:

the utility model provides a novel anti loosening structure's blood purification adsorber shell, includes casing and the cap of spiro union at this casing both ends, the position that the periphery of casing is close to its both ends is equipped with first screw tooth respectively, the end of first screw tooth is equipped with prevents to change the shell fragment, the position that corresponds this prevention on the perisporium of cap changes the shell fragment is equipped with positioning groove, during the assembled state prevent to change the shell fragment card and go on fixing a position in this positioning groove.

Above-mentioned technical scheme, when screwing up the cap on the casing, prevent to change the shell piece and can block and carry on spacingly in positioning channel section, can realize self-locking function after the spiral cover is accomplished, and can not force the forcible and tear open, in case break open then this structural damage, the product can not continue to use, it can not become flexible to have guaranteed between casing and the cap, product leakproofness is better, need not increase extra point and glue solidification technology, make production technology more simplistic, the quality of product has obtained effective guarantee, the cost is saved, the probability that the defective products produced has been reduced.

Preferably, the rotation-preventing elastic sheet is independent of the housing, and the distance between the rotation-preventing elastic sheet and the housing is 0.5 mm-2 mm.

Preferably, the rotation-preventing elastic piece is obliquely arranged towards the shell cover, one end of the rotation-preventing elastic piece is connected with the tail end of the first thread, and the other end of the rotation-preventing elastic piece is a free end;

the opening of the positioning clamping groove faces the anti-rotation elastic sheet and is matched with the structure of the anti-rotation elastic sheet, and the outer end face of the anti-rotation elastic sheet is abutted against the groove wall of the positioning clamping groove in the assembling state.

Preferably, the rotation-preventing elastic sheet comprises a first elastic body, the first elastic body is obliquely arranged towards the shell cover, one end of the first elastic body is fixedly connected with the tail end of the first screw thread, the other end of the first elastic body is connected with a second elastic body, and the plane of the outer end face of the second elastic body is perpendicular to the horizontal plane;

the positioning clamping groove comprises a first groove position and a second groove position which are communicated, the first groove position is arranged in an inclined mode, the inclined angle of the first groove position is the same as that of the first elastic body, and the groove wall of the second groove position is abutted to the outer end face of the second elastic body.

Preferably, the included angle between the plane of the first elastomer and the horizontal plane is 1-60 degrees.

Preferably, the depth and pitch of the first thread are the same.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when screwing up the cap on the casing, prevent to change the shell piece and can block and go on spacingly in going into positioning channel section, can realize self-locking function after the spiral cover is accomplished, and can not force the forcible and tear open, in case break open then this structure destruction, the product can not continue to use, it can not become flexible to have guaranteed between casing and the cap, the product leakproofness is better, need not increase extra point and glue solidification technology, make production technology more simplistic, the quality of product has obtained effective guarantee, the cost is saved, the probability that the defective products produced has been reduced.

Description of the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

FIG. 3 is a schematic view of the structure of FIG. 2 showing the separation of the resilient plate and the positioning groove;

FIG. 4 is an exploded view of FIG. 1;

fig. 5 is a longitudinal sectional view of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The casing of the blood purification adsorber with the novel anti-loosening structure shown in the attached figures 1-5 comprises a casing 1 and casing covers 2 screwed at two ends of the casing 1, wherein the casing 1 is a conical cylindrical casing, the taper of the casing is 0.1-5 degrees, one casing cover 2 positioned at the upper end is a flat casing cover, the casing cover 2 positioned at the lower end is a spherical casing cover, a casing cap 5 is screwed on a small blood nozzle opening of the casing cover 2, the casing cap 5 and the casing cover 2 are sealed through a spherical sealing plug 9, a sealing gasket 6 and a filter screen 7 are further arranged at the joint of the casing 1 and the casing cover 2, the structure can adopt the prior art, and detailed description is omitted.

Be equipped with first thread 11 respectively near the position at its both ends in the periphery of casing 1, establish the second thread on the internal perisporium of casing 2, the second thread is connected casing 2 with 11 spiro unions of first thread on casing 1, the tooth depth and the tooth interval of first thread 11 and second thread are the same, end at first thread 11 is equipped with prevents changeing shell fragment 3, the position that should prevent changeing shell fragment 3 on the perisporium of casing 2 corresponds is equipped with positioning slot 4, prevent changeing in the assembly state that 3 cards of shell fragment are gone into and fix a position in this positioning slot 4. The rotation-preventing elastic sheet 3 is independent of the shell 1, and the distance between the rotation-preventing elastic sheet 3 and the shell 1 is 0.5 mm-2 mm.

As can be seen from fig. 2 and 3, the rotation-preventing elastic piece 3 includes a first elastic body 31, the first elastic body 31 is disposed to be inclined toward the case cover 2, that is, the first elastic body 31 is inclined toward one side of the case cover 2, an included angle between a plane where the first elastic body 31 is located and a horizontal plane is 1 to 60 °, a cross section of the first elastic body 31 is of a parallelogram structure, one end of the first elastic body 31 is fixedly connected to a tail end of the first screw 11, the other end of the first elastic body is connected to a second elastic body 32, the second elastic body 32 is of a rectangular structure, an outer end of the second elastic body 32 is a free end, and a plane where an outer end surface of the second elastic body 32 is located is perpendicular to the horizontal plane.

The opening of the positioning clamping groove 4 faces the rotation-preventing elastic sheet 3 and is matched with the structure of the rotation-preventing elastic sheet 3.

The positioning slot 4 includes a first slot 41 and a second slot 42 that are communicated with each other, the first slot 41 is disposed in an inclined manner, an inclined angle of the first slot is the same as an inclined angle of the first elastic body 31, and a slot wall of the second slot 42 abuts against an outer end surface of the second elastic body 32.

Above-mentioned structure, through optimizing the helicitic texture on casing 1 and the cap 2, through the screens cooperation of preventing to change shell fragment 3 and positioning slot 4, form a self-lock device when screw thread is tighted, the cap does not return the pine under the high temperature of sterilization, high pressure environment, and need not increase extra point and glue solidification technology for production technology is more simplistic, and the quality of product has obtained effective guarantee, has practiced thrift the cost, has reduced the probability that the defective products produced. Meanwhile, the following technical problems are solved, and the corresponding effects are achieved:

1. the problem of complicated working procedures caused by the fact that the shell screwing process needs additional dispensing and curing working procedures to keep the shell not to loosen is solved;

2. the problem that the threaded connection part is loosened due to the unstable dispensing process in the preparation process of the adsorber, so that the product is poorly sealed, microorganisms are introduced, and the sterility and effectiveness of the product cannot be guaranteed is solved;

3. the problems that the glue curing effect is poor and the thread locking force is unstable due to the fact that the glue curing effect is easily caused by inconsistent placing conditions (the distance between a glue dispensing position of the absorber and a light source of the curing lamp and an irradiation position during production) are solved;

4. the problems that screw teeth are corroded, whitened and cracked due to insufficient photocuring after dispensing, and damage risks are increased in the storage, transportation and use processes of products are solved;

5. the problems of high product reject ratio, raw material waste and high cost caused by insufficient thread locking force of the shell of the adsorber are solved.

The foregoing describes preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (6)

1. The utility model provides a novel anti loosening structure's blood purification adsorber shell, includes casing (1) and cap (2) of spiro union at this casing (1) both ends, the position that the periphery of casing (1) is close to its both ends is equipped with first thread (11) respectively, its characterized in that: the end of the first thread (11) is provided with a rotation preventing elastic sheet (3), a positioning clamping groove (4) is formed in the peripheral wall of the shell cover (2) corresponding to the rotation preventing elastic sheet (3), and the rotation preventing elastic sheet (3) is clamped into the positioning clamping groove (4) to be positioned in the assembling state.

2. The novel anti-loose structure blood purification adsorber shell of claim 1 further comprising: the rotation-preventing elastic sheet (3) is independent of the shell (1), and the distance between the rotation-preventing elastic sheet (3) and the shell (1) is 0.5-2 mm.

3. The novel anti-loose structure blood purification adsorber shell of claim 1 further comprising: the rotation preventing elastic sheet (3) is obliquely arranged towards the shell cover (2), one end of the rotation preventing elastic sheet (3) is connected with the tail end of the first thread (11), and the other end of the rotation preventing elastic sheet is a free end;

the opening of the positioning clamping groove (4) faces the rotation preventing elastic sheet (3) and is matched with the structure of the rotation preventing elastic sheet (3), and the outer end face of the rotation preventing elastic sheet (3) is abutted against the groove wall of the positioning clamping groove (4) in the assembling state.

4. The novel anti-loose structure blood purification adsorber shell of claim 3 further comprising: the rotation preventing elastic piece (3) comprises a first elastic body (31), the first elastic body (31) is obliquely arranged towards the shell cover (2), one end of the first elastic body (31) is fixedly connected with the tail end of the first screw thread (11), the other end of the first elastic body is connected with a second elastic body (32), and the plane of the outer end face of the second elastic body (32) is vertical to the horizontal plane;

the positioning clamping groove (4) comprises a first groove position (41) and a second groove position (42) which are communicated with each other, the first groove position (41) is arranged in an inclined mode, the inclined angle of the first groove position is the same as that of the first elastic body (31), and the groove wall of the second groove position (42) is abutted to the outer end face of the second elastic body (32).

5. The novel anti-loose structure blood purification adsorber shell of claim 4 further comprising: the included angle between the plane of the first elastic body (31) and the horizontal plane is 1-60 degrees.

6. The novel anti-loose structure blood purification adsorber shell of any of claims 1 to 5 further comprising: the tooth depth and the tooth pitch of the first screw teeth (11) are the same.

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