CN207532592U - A kind of haemodialyser sealing ring - Google Patents
A kind of haemodialyser sealing ring Download PDFInfo
- Publication number
- CN207532592U CN207532592U CN201720262844.2U CN201720262844U CN207532592U CN 207532592 U CN207532592 U CN 207532592U CN 201720262844 U CN201720262844 U CN 201720262844U CN 207532592 U CN207532592 U CN 207532592U
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- sealing ring
- section
- haemodialyser
- outer portion
- internal ring
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Abstract
The utility model discloses a kind of haemodialyser sealing rings, for between the housing and end cap of haemodialyser, the sealing ring is annular, the sealing ring includes internal ring portion and the outer portion on the outside of the internal ring portion on its inside, the internal ring portion and outer portion connection are integrated, the rectangular cross-section of wherein described internal ring portion, the section of the outer portion is arch, and the length of the bowed string in the outer portion section is equal to the length of side on the side of the rectangle in the internal ring portion section for linking the string.In the utility model, due to the presence of outer portion and internal ring portion, the gap between housing end face and end cap can be minimized as far as possible, therefore dialyzer is in use, reduce the risk of leakage blood, reduce the residual blood in gap, improve product using effect.
Description
Technical field
The utility model is related to blood purification technology field more particularly to a kind of haemodialyser sealing rings.
Background technology
Haemodialyser is mainly used for carrying out haemodialysis and blood filtration in kidney diseases.Haemodialyser master
Macromolecule dialysis membrane that will be by housing and in housing is formed, when blood is flowed into from the inlet of shell one end in housing,
When by macromolecule dialysis membrane in housing, using macromolecule dialysis membrane both sides solute concentration difference, through permeating, spreading and ultrafiltration
Effect, be trapped the macromolecular substances such as haemocyte and protein in blood, and in electrolyte and water etc., small-molecule substance from
It is separated in blood, the liquid outlet discharge through the housing other end makes purified blood recovery in patient body, reaches and remove generation
Thank product and toxicant, correct water, electrolyte balance disorder purpose.The structure of existing haemodialyser mainly includes：
Shell, dialysis membrane, packaging plastic, end cap, sealing ring.It is that sealing ring is generally using O-ring in the market now, due to housing and end cap
End is all plane, and the embedding groove of end cap is right-angle side, therefore when sealing ring is put into end cap and after with two end in contact of housing,
It can will make dialyzer in use there are the gap of very little between housing end face and end cap, increase the risk of leakage blood, together
When in gap also can remained blood, influence product using effect.
Utility model content
Technical problem to be solved in the utility model and the technical assignment proposed are that the prior art is improved, and are provided
A kind of haemodialyser sealing ring, solve sealing ring of the prior art can increase leakage blood risk and housing end face with
The problem of gap remained blood between end cap.
The technical solution that the utility model is taken by solution technical problem in the prior art is as follows：A kind of blood
Dialyzer sealing ring, between the housing and end cap of haemodialyser, the sealing ring to be annular, the sealing ring includes position
The internal ring portion of side and the outer portion on the outside of the internal ring portion in the inner, the internal ring portion and outer portion connection are one
Body, wherein the diametrically opposite rectangular cross-section of the internal ring portion, the diametrically opposite section of outer portion is arch, described
The length of the bowed string in outer portion section is equal to the length of side on the side of the rectangle in the internal ring portion section for linking the string.
Preferably, the arch in the section of the outer portion is half circular.
Preferably, the bowed arc in the section of the outer portion is major arc.
Preferably, the bowed arc in the section of the outer portion is minor arc.
Preferably, the material of the haemodialyser sealing ring includes medical silica gel.
Preferably, the side size range on the side of the rectangle in the internal ring portion section is 2.5mm-5mm.
Compared with prior art, the utility model has the advantage of：
A kind of section of haemodialyser sealing ring described in the utility model is formed by facing directly with cambered surface, due to housing,
End cap and sealing ring contact surface are planes, and the embedding groove of end cap is right-angle side, therefore when sealing ring is put into end cap simultaneously and shell
After two end in contact of body, since the section of the sealing ring is by facing the presence with cambered surface, the gap between housing end face and end cap directly
It can be minimized as far as possible, therefore dialyzer is in use, the risk of leakage blood be reduced, and at the same time preventing patient
Blood residuals effectively improve the product using effect of haemodialyser on dialyzer end cap.
Description of the drawings
Fig. 1 is the overall structure diagram according to one embodiment of the utility model；
Fig. 2 is the A-A cross-sectional views according to one embodiment of the utility model of Fig. 1；
Fig. 3 is the schematic diagram being mounted on according to the sealing ring of one embodiment of the utility model in haemodialyser.
Specific embodiment
In order to which the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing 1-3 with
And embodiment, the utility model is described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the utility model, it is not intended to limit the utility model.
As shown in Fig. 2, an embodiment according to the present utility model, a kind of haemodialyser sealing ring 1, for haemodialysis
Between the housing and end cap of device, the sealing ring 1 is annular, and the sealing ring 1 includes internal ring portion 12 on its inside and position
Outer portion 11 in 12 outside of internal ring portion, the internal ring portion 12 and the connection of the outer portion 11 are integrated, wherein in described
12 diametrically opposite rectangular cross-section of ring portion, the 11 diametrically opposite section of outer portion be arch, the outer portion 11
The length of the bowed string in section is equal to the length of side on the side of the rectangle in 12 section of the internal ring portion for linking the string.
In this embodiment, since housing, end cap and sealing ring contact surface are planes, the embedding groove of end cap is right angle
Side, therefore when sealing ring is put into end cap and after with two end in contact of housing, due to the sealing ring 1 section by internal ring portion 12 with
The presence of outer portion 11, the gap between housing end face and end cap can be minimized as far as possible, therefore dialyzer was using
Cheng Zhong reduces the risk of leakage blood, reduces the residual blood in gap, improves product using effect.
Internal ring portion 12 mutually agrees with 11 shape of outer portion with mating end cap, and fitting depth is generally 2mm-4mm, and silica gel
Class sealing ring hardness is generally 55 degree or so of shore, and frictional force does not have apparent increase compared with O-ring, does not need in sealing ring
Inside setting lubricant coating etc..
A preferred embodiment according to the present utility model, the arch in the section of the outer portion 11 is half circular.In the reality
It applies in example, since the arch in the section of the outer portion 11 of the haemodialyser sealing ring is half circular so that the system of sealing ring
The sealing ring that technique is made relative to the outer portion with other shapes is simpler, improves production efficiency, while cause production
The yield rate of product can be also improved.It can reach again simultaneously and reduce the gap between the housing end face of haemodialyser and end cap
Effect.
Another preferred embodiment according to the present utility model, the bowed arc in the section of the outer portion 11 is major arc.
In the embodiment, when the bowed arc in the section of outer portion 11 is major arc, it can equally reach the shell ends for reducing haemodialyser
The effect in the gap between face and end cap, and major arc is also conventional radian, and blood described in the utility model will not be made saturating
The manufacturing process of parser sealing ring complicates, at the same effectively prevent again it is of the prior art it is double face sealing ring directly caused by leak blood
And between housing end face and end cap the problem of remained blood, it is effectively improved the using effect of haemodialyser.
Another preferred embodiment according to the present utility model, the bowed arc in the section of the outer portion 11 is minor arc.
An embodiment according to the present utility model, the material of the haemodialyser sealing ring include medical silica gel.
An embodiment according to the present utility model, the side size range on the side of the rectangle in 12 section of internal ring portion is 2.5mm-
5mm。
As shown in figure 3, to be mounted on haemodialyser according to the haemodialyser sealing ring of one embodiment of the utility model
In schematic diagram, set internal ring portion 12 mutually agrees with outer portion 11 with mating end cap, and outer portion is retains O-ring outer portion
Cambered surface, internal ring portion are changed to face directly by O-ring cambered surface, achieve the effect that reduce the gap between housing end face and end cap.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
It but can not be therefore understands that for the limitation to the utility model patent range.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (6)
1. a kind of haemodialyser sealing ring（1）, between the housing and end cap of haemodialyser, it is characterised in that：It is described
Sealing ring（1）For annular, the sealing ring（1）Including internal ring portion on its inside（12）With positioned at the internal ring portion（12）Outside
The outer portion of side（11）, the internal ring portion（12）With the outer portion（11）Connection is integrated, wherein the internal ring portion is diametrically
The rectangular cross-section in direction, the outer portion（11）Diametrically opposite section be arch, the outer portion（11）The bow in section
The length of the string of shape is equal to the internal ring portion for linking the string（12）The length of side on the side of the rectangle in section.
A kind of 2. haemodialyser sealing ring according to claim 1, it is characterised in that the outer portion（11）Section
Arch be half circular.
A kind of 3. haemodialyser sealing ring according to claim 1, it is characterised in that the outer portion（11）Section
Bowed arc be major arc.
A kind of 4. haemodialyser sealing ring according to claim 1, it is characterised in that the outer portion（11）Section
Bowed arc be minor arc.
5. a kind of haemodialyser sealing ring according to any one of claim 1-4, it is characterised in that the blood is saturating
The material of parser sealing ring includes medical silica gel.
A kind of 6. haemodialyser sealing ring according to any one of claim 1-4, it is characterised in that the internal ring portion
（12）The side size range on the side of the rectangle in section is 2.5mm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720262844.2U CN207532592U (en) | 2017-03-17 | 2017-03-17 | A kind of haemodialyser sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720262844.2U CN207532592U (en) | 2017-03-17 | 2017-03-17 | A kind of haemodialyser sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207532592U true CN207532592U (en) | 2018-06-26 |
Family
ID=62608210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720262844.2U Active CN207532592U (en) | 2017-03-17 | 2017-03-17 | A kind of haemodialyser sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207532592U (en) |
-
2017
- 2017-03-17 CN CN201720262844.2U patent/CN207532592U/en active Active
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| GR01 | Patent grant |