CN209451034U - Disposable asepsis hemodialysis conduit - Google Patents
Disposable asepsis hemodialysis conduit Download PDFInfo
- Publication number
- CN209451034U CN209451034U CN201821714725.7U CN201821714725U CN209451034U CN 209451034 U CN209451034 U CN 209451034U CN 201821714725 U CN201821714725 U CN 201821714725U CN 209451034 U CN209451034 U CN 209451034U
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- catheter body
- side position
- position hole
- blood
- hemodialysis conduit
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Abstract
The utility model is suitable for haemodialysis technical field of medical equipment, provide a kind of disposable asepsis hemodialysis conduit, including catheter body, the blood drawing chamber being mutually independent and blood transfusion chamber are equipped with inside the catheter body, the catheter body is equipped with the centre bore being connected with blood transfusion chamber close to tip portion, if the catheter body is equipped with far from tip portion and small is interspersed with the dry side position hole that is connected of blood drawing chamber, the side position hole by one big two.The utility model can solve the problem of when the prior art is difficult to prevent blood drawing chamber opening from attaching to vascular wall and then being easy to keep conduit insertion intravascular that blood drawing chamber opening is adherent and result in blockage, to guarantee that blood is smoothly extracted out.
Description
Technical field
The utility model belongs to haemodialysis technical field of medical equipment, more particularly to a kind of disposable sterile blood
Dialysis catheter.
Background technique
Haemodialysis is to be led to blood in vitro by vascular access and blood pump, into one by without several hollow fibre groups
At dialyzer in, blood electrolyte solution (dialyzate) similar with concentration containing body inside and outside hollow fibre one by one, lead to
It crosses disperse/convection current mode and carries out mass exchange, remove intracorporal metabolic waste, maintain electrolyte and acid-base balance；It is clear simultaneously
Except moisture excessive in vivo, and will be by the whole process of the blood recovery purified.Haemodialysis is acute or chronic renal failure
One of kidneys of patients Replacement Therapy has become the therapeutic modality that China's overwhelming majority uremic patient is depended on for existence at present.
The method for being clinically often used the puncture of disposable blood dialysis catheter at present establishes blood access and carries out blood purification,
Over the course for the treatment of, often there is the case where making arterial end opening attach vascular wall due to negative pressure, cause blood flow from patient's body
Flow out unsmooth, treatment can not be normally carried out, and occurred blood inside catheters in severe cases and stopped flowing and form thrombus, damage
Filter finally makes treatment failure, not only increases the pain of patient, in some instances it may even be possible to lead to life danger.
Existing notification number is that the Chinese patent of CN202637572U discloses a kind of hemodialysis catheter capable of preventing attachment of blood vessel wall,
Be characterized in that: set in the hemodialysis catheter there are two independent lumen, respectively draw blood vessel and blood return tube, this draw blood vessel and
The end of blood return tube has blood drawing chamber to be open respectively and blood transfusion chamber is open, the domed structure of chamber open section of drawing blood, blood drawing chamber opening position
Intermediate inside is bent in arch.But in the hemodialysis catheter of the anti-glued vascular wall of the program, when progress haemodialysis
When, suction caused by 250ml/ minutes flows is larger, in the case where no physical support, only relies on guiding-tube bend, very
Difficulty plays the role of preventing blood drawing chamber opening from attaching to vascular wall, and then just blood drawing chamber is opened when being easy to keep conduit insertion intravascular
Mouth is adherent to result in blockage.
Utility model content
The utility model provides a kind of disposable asepsis hemodialysis conduit, it is intended to solve the prior art and be difficult to prevent
Blood drawing chamber opening attaches to vascular wall, so when being easy that conduit is made to be inserted into intravascular blood drawing chamber be open it is adherent result in blockage ask
Topic.
The utility model is realized in this way a kind of disposable asepsis hemodialysis conduit, including catheter body, institute
State and be equipped with the blood drawing chamber being mutually independent and blood transfusion chamber inside catheter body, the catheter body close to tip portion be equipped with
The centre bore that blood transfusion chamber is connected, if the catheter body is equipped with the dry side position hole being connected with blood drawing chamber far from tip portion,
Side position hole small is interspersed by one big two.
Further, side position hole includes one close to the first side of centre bore position hole and two separate centre bores
Second side position hole, the diameter in the first side position hole are 2.12-2.18mm, and the diameter in second side position hole is 1.80-
1.85mm。
Further, the catheter body is equipped with close to tip portion is located at intracavitary filler of drawing blood.
Further, if the catheter body is located at centre bore and the part in dry side position hole is equipped with the smooth transition of indent
Section.
Further, the changeover portion is equipped with circular protrusion, and the outer diameter and catheter body of the circular protrusion are just
Normal outer diameter is consistent.
Further, the circular protrusion is an integral structure with changeover portion.
Further, the catheter body is equipped with terylene set and titanium folder, adheres to terylene set in the catheter body
Both ends around titanium press from both sides.
Further, respectively there is a titanium folder at the terylene set both ends in the catheter body, amount to two.
Further, the surface of the catheter body is covered with the nano coating of super-hydrophobic oleophobic coating, and the nanometer applies
Layer includes oleophobic layer and hydrophobic layer, and the thickness of the oleophobic layer is greater than the thickness of hydrophobic layer.
Further, the nano coating is fluorine-containing nanometer polymer.
Beneficial effect possessed by the utility model is:
1, just adherent when can avoid catheter body insertion blood vessel by feat of the side for the arrangement that is not staggered on one wire position hole
It results in blockage, and is drawn blood by the big side position hole in the small side position hole auxiliary front aperture in the rear aperture Liang Ge, to guarantee just
Normal haemodialysis；
2, in haemodialysis, circular protrusion can prevent vascular wall and side position hole from being in contact, and prevent because of side position hole suction
Vascular wall is caused to be attached to the generation on the hole of side position；
3, being clipped under radioactive ray using titanium can develop, to can determine that terylene covers position, Reduction surgery notch is conveniently pulled out
Except catheter body；
4, by the way that the nano coating on catheter body surface is arranged in, blood has been isolated and is placed in the direct contact on object surface,
Coagulation test and germ is prevented to be colonized；So that merging object is not both caused Coagulation test, the field planting such as bacterium, fungi will not be made to set
Entering object surface causes to infect.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of disposable asepsis hemodialysis conduit provided by the utility model；
Fig. 2 is a kind of cross-sectional view of disposable asepsis hemodialysis conduit provided by the utility model.
In figure, 1, catheter body；11, blood drawing chamber；12, blood transfusion chamber；21, centre bore；22, side position hole；221, the first side position
Hole；222, second side position hole；23, filler；3, changeover portion；31, circular protrusion；4, terylene set；41, titanium presss from both sides.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
For the prior art when carrying out haemodialysis, suction caused by 250ml/ minutes flows is larger, in no physics
In the case where support, guiding-tube bend is only relied on, is difficult to play the role of preventing blood drawing chamber opening from attaching to vascular wall, and then be easy
Just blood drawing chamber is open adherent the problem of resulting in blockage when keeping conduit insertion intravascular.
Embodiment one
A kind of disposable asepsis hemodialysis conduit, as depicted in figs. 1 and 2, including catheter body 1, catheter body 1
Inside offers the blood drawing chamber 11 being mutually independent and blood transfusion chamber 12, and distinguishing feature unlike the prior art is,
Its catheter body 1 is provided with the centre bore 21 being connected with blood transfusion chamber 12 close to tip portion, and catheter body 1 is far from tip portion
It small is interspersed with the dry side position hole 22 that is connected of blood drawing chamber 11, these sides position hole 22 by one big two if being provided with.Therefore, rely on
The arrangement that is not staggered on one wire side position hole 22 can avoid catheter body 1 be inserted into blood vessel when it is just adherent result in blockage, and
And drawn blood by the big side position hole 22 in the small side position hole 22 auxiliary front aperture in the rear aperture Liang Ge, to guarantee normal blood
Dialysis, though side position hole 22 generate in the case that suction is larger or patient's light activity, be also reliably prevented from side
Position hole 22 attaches vascular wall and results in blockage, and structure is simple, easy to operate, realizes good therapeutic effect.Additionally, due to side
Compared with prior art, position is to moving up, so as to effectively prevent flowing back to the blood of human body from centre bore 21 from side in position hole 22
Position hole 22 is sucked into dialysis machine again.
As shown in Figure 1, side position hole 22 includes one close to the first of centre bore 21 in this embodiment of the utility model
Side position hole 221 and two second side position holes 222 far from centre bore 21, wherein the diameter in the first side position hole 221 is in 2.12-
Between 2.18mm, the diameter in second side position hole 222 is between 1.80-1.85mm.It is highly preferred that the first side position hole 221 is
2.15mm, 222, second side position hole 1.83mm, thus, it is possible to draw blood under the premise of guaranteeing normal haemodialysis.
As depicted in figs. 1 and 2, catheter body 1 is provided with the filler 23 being located in blood drawing chamber 11 close to tip portion, thus
Using filler 23 block up filled band side position hole 22 11 tip portion of blood drawing chamber, can anti-Hemostatic Oral Liquid assemble at tip to be formed thrombus blocking
Catheter body 1.
Embodiment two
A kind of disposable asepsis hemodialysis conduit, embodiment two are basically the same as the first embodiment, difference
It is in if as shown in Figure 1, catheter body 1 is located at centre bore 21 and 22 part of dry side position hole is equipped with the smooth changeover portion of indent
3, circular protrusion 31 is provided on changeover portion 3, and the outer diameter of circular protrusion 31 and the normal outer diameter of catheter body 1 are consistent.Normal
Rule operation is when setting pipe, due to the changeover portion 3 and circular protrusion 31 that have indent smooth outer diameter unlike catheter body 1 outer diameter
Greatly, it ensure that under the guidance of flexible tip and set the smooth of pipe, obstruction will not be generated due to the opposed pipe of circular protrusion 31.And in blood
When liquid is dialysed, these circular protrusions 31 can prevent vascular wall and side position hole 22 from being in contact, it is therefore prevented that because 22 suction of side position hole is led
It causes vascular wall to be attached to the generation on the hole 22 of side position, ensure that normal haemodialysis.In addition, these circular protrusions 31 and smooth
Changeover portion 3 passes through the thermoforming processing realization after conduit extrusion molding and is an integral structure.
Embodiment three
A kind of disposable asepsis hemodialysis conduit, embodiment three are basically the same as the first embodiment, difference
It is in as shown in Figure 1, being provided with terylene set 4 and titanium folder 41 in catheter body 1, adherency terylene covers 4 in catheter body 1
Both ends are around titanium folder 41, and in this embodiment of the utility model, the terylene in catheter body 1, which covers 4 both ends, respectively a titanium folder 41,
Amount to two.Therefore, titanium folder 41 can develop under radioactive ray, to can determine that terylene covers 4 positions, Reduction surgery notch, side
Just Lumen catheter ontology 1 reduces postoperative complication, facilitates post-operative recovery, improve the quality of life of patient.Meanwhile titanium presss from both sides
41 be at present the conventional spare medical supplies of operating room, obtains and is easy, hemodialysis catheter production is simple, easy to use, doctor
Business personnel are easy to receive.
Example IV
A kind of disposable asepsis hemodialysis conduit, embodiment four are basically the same as the first embodiment, difference
It is in as shown in Fig. 2, 1 surface of catheter body is covered with the nano coating of super-hydrophobic oleophobic coating, the nano coating includes dredging
Oil reservoir and hydrophobic layer, the thickness of the oleophobic layer are greater than the thickness of hydrophobic layer.In this embodiment of the utility model, nano coating
For fluorine-containing nanometer polymer, nano coating is with a thickness of 400nm.Because merging object surface is super-hydrophobic oleophobic, blood is isolated and has set
The direct contact for entering object surface prevents Coagulation test and germ to be colonized；So that merging object is not both caused Coagulation test, will not make
The field planting such as bacterium, fungi causes to infect on merging object surface, this had both alleviated patient suffering, hospital stays, also saving cost of hospitalization
With.
The working principle of this disposable asepsis hemodialysis conduit: blood is passed through from side position hole 22 sucking blood drawing chamber 11
It crosses dialysis machine and flows back to human body from centre bore 21 and pointed head using the blood transfusion chamber 12 with centre bore 21, in this haemodialysis
Cheng Zhong can avoid just adherent when catheter body 1 is inserted into blood vessel make by feat of the side for the arrangement that is not staggered on one wire position hole 22
It draws blood at blocking, and by the big side position hole 22 in the small side position hole 22 auxiliary front aperture in the rear aperture Liang Ge, to guarantee
Normal haemodialysis, and the circular protrusion 31 being arranged in catheter body 1 can prevent vascular wall and side position hole 22 from connecing
Touching, it is therefore prevented that because 22 suction of side position hole causes vascular wall to be attached to the generation on the hole 22 of side position, ensure that normal haemodialysis.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of disposable asepsis hemodialysis conduit, including catheter body (1), the catheter body (1) is internal to be equipped with
The blood drawing chamber (11) being mutually independent and blood transfusion chamber (12), it is characterised in that: the catheter body (1) is set up separately close to point
There is the centre bore (21) being connected with blood transfusion chamber (12), the catheter body (1) is equipped with and blood drawing chamber (11) far from tip portion
If the dry side position hole (22) being connected, side position hole (22) small is interspersed by one big two.
2. disposable asepsis hemodialysis conduit as described in claim 1, it is characterised in that: the side position hole (22) is wrapped
Include the first side position hole (221) and two second side position holes (222) far from centre bore (21) close to centre bore (21), institute
The diameter for stating the first side position hole (221) is 2.12-2.18mm, and the diameter in second side position hole (222) is 1.80-1.85mm.
3. disposable asepsis hemodialysis conduit as claimed in claim 2, it is characterised in that: the catheter body (1)
The filler (23) being located in blood drawing chamber (11) is equipped with close to tip portion.
4. disposable asepsis hemodialysis conduit as described in claim 1, it is characterised in that: the catheter body (1)
Positioned at centre bore (21) and if the part in dry side position hole (22) be equipped with the smooth changeover portion (3) of indent.
5. disposable asepsis hemodialysis conduit as claimed in claim 4, it is characterised in that: on the changeover portion (3)
Equipped with circular protrusion (31), the outer diameter of the circular protrusion (31) is consistent with the normal outer diameter of catheter body (1).
6. disposable asepsis hemodialysis conduit as claimed in claim 5, it is characterised in that: the circular protrusion (31)
It is an integral structure with changeover portion (3).
7. disposable asepsis hemodialysis conduit as described in claim 1, it is characterised in that: the catheter body (1)
It is equipped with terylene set (4) and titanium folder (41), the both ends of terylene set (4) are adhered on the catheter body (1) around titanium folder (41).
8. disposable asepsis hemodialysis conduit as claimed in claim 7, it is characterised in that: the catheter body (1)
On terylene set (4) both ends respectively have titanium folder (41), amount to two.
9. disposable asepsis hemodialysis conduit as described in claim 1, it is characterised in that: the catheter body (1)
Surface be covered with the nano coating of super-hydrophobic oleophobic coating, the nano coating includes oleophobic layer and hydrophobic layer, the oleophobic layer
Thickness be greater than hydrophobic layer thickness.
10. disposable asepsis hemodialysis conduit as claimed in claim 9, it is characterised in that: the nano coating is
Fluorine-containing nanometer polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821714725.7U CN209451034U (en) | 2018-10-22 | 2018-10-22 | Disposable asepsis hemodialysis conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821714725.7U CN209451034U (en) | 2018-10-22 | 2018-10-22 | Disposable asepsis hemodialysis conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209451034U true CN209451034U (en) | 2019-10-01 |
Family
ID=68037244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821714725.7U Active CN209451034U (en) | 2018-10-22 | 2018-10-22 | Disposable asepsis hemodialysis conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209451034U (en) |
-
2018
- 2018-10-22 CN CN201821714725.7U patent/CN209451034U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211027 Address after: 518100 401, building B, No. 8, Jinlong 1st Road, Baolong community, Longgang street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN SHUNMEI MEDICAL Co.,Ltd. Address before: 516000 Yifa process area, Dushi village, Pingtan Town, Huiyang District, Huizhou City, Guangdong Province (first floor of building B in the plant) Patentee before: Huizhou Shunmei Medical Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220310 Address after: 516000 Yifa Industrial Zone, Dushi village, Pingtan Town, Huiyang District, Huizhou City, Guangdong Province (plant B in the plant) Patentee after: Huizhou Shunmei Medical Technology Co.,Ltd. Address before: 518100 401, building B, No. 8, Jinlong 1st Road, Baolong community, Longgang street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SHUNMEI MEDICAL Co.,Ltd. |