CN104338187A - Artificial blood vessel protecting sleeve and artificial blood vessel protection device comprising same - Google Patents
Artificial blood vessel protecting sleeve and artificial blood vessel protection device comprising same Download PDFInfo
- Publication number
- CN104338187A CN104338187A CN201310338562.2A CN201310338562A CN104338187A CN 104338187 A CN104338187 A CN 104338187A CN 201310338562 A CN201310338562 A CN 201310338562A CN 104338187 A CN104338187 A CN 104338187A
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- Prior art keywords
- blood vessel
- artificial blood
- protective sleeve
- flanges
- fixed part
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
Abstract
An artificial blood vessel protecting sleeve (1) is formed by a plurality of identical connected protecting ring units (10); each protecting ring unit comprises an annular body (101), two first flanges (102) which extend from one end surface (101a) of the annular body in the axial direction of the annular body towards a first direction, and two second flanges (103) which extend from another end surface (101b) of the annular body in the axial direction of the annular body towards a second direction which is opposite to the first direction; the first flanges are oppositely arranged on the annular body in the first diameter direction; holes (104) are formed in the first flanges respectively; the two second flanges are oppositely arranged on the annular body in the second diameter direction; bulges (105) are formed in the second flanges respectively; the first diameter direction is perpendicular to the second diameter direction; every two adjacent protecting ring units of the plurality of protecting ring units are connected through clearance fit connection of the holes and the bulges. The artificial blood vessel protection device (100) comprises the artificial blood vessel protection sleeve, a clamping ring and a tail ring.
Description
Technical field
The present invention relates to the adnexa of human assistance heart pump, relate more specifically to artificial blood vessel protective sleeve and comprise the artificial blood vessel protector of this protective sleeve.
Background technology
Human assistance heart is arranged on apex of the heart position, Human left ventricle lower end, and blood delivery side of pump utilizes an artificial blood vessel to be connected to aortic root.Due to installation site and angle, artificial blood vessel is excessive or be easily out of shape when being subject to the extruding of surrounding body's internal organs at angle of bend, and easily form thrombosis in the artificial blood vessel after distortion, it is unfavorable that thrombosis can cause human body.In order to prevent the appearance of above-mentioned phenomenon, need to set up protector outside artificial blood vessel.
Publication date be on May 23rd, 2012, notification number is CN202223620U, name is called in the Chinese patent of " the outlet syndeton of left ventricle assist blood pump ", discloses a kind of artificial blood vessel protector.
In this patent documentation, the tubular body of artificial blood vessel protective sleeve adopts the pore structure be uniform staggered with to realize the free bend of certain angle, and wherein said hole is the elongated hole on tubular body tube wall.
In addition, fixedly being realized by a Ω shape clip of the fixing and artificial blood vessel protective sleeve position that exports of artificial blood vessel and blood pump.By banding Ω shape clip, thus artificial blood vessel is fixed in blood pump outlet.Ω shape clip is also evenly equipped with projection, these protruding with artificial blood vessel protective sleeve one end on the bayonet socket that arranges in mating connection, thus artificial blood vessel protective sleeve to be fixed on Ω shape clip, namely to secure the position of artificial blood vessel protective sleeve.
Technique scheme Problems existing is: because artificial blood vessel protective sleeve makes with the material with certain degree of hardness; so the angular range that the artificial blood vessel protective sleeve of the above-mentioned pore structure with elongated hole can bend is little, and above-mentioned artificial blood vessel protective sleeve can form internal stress and extrude surrounding body's internal organs after bending certain angle.
In addition, the manufacture processed complex of the pore structure on above-mentioned artificial blood vessel protective sleeve tubular body, production cost is relatively high.
And it is changeless that the length of above-mentioned artificial blood vessel protective sleeve completes once manufacture, and its adaptability is poor.
In addition, above-mentioned Ω shape clip in use easily occurs the clamping of artificial blood vessel and blood pump outlet insufficient, thus causes the situation of blood leakage and artificial blood vessel fold.
In addition, the projection on above-mentioned Ω shape clip and the mode that is fixedly connected with of the bayonet socket on artificial blood vessel protective sleeve cause artificial blood vessel protective sleeve substantially can not bend at their link position place, thus limit the bending degree of freedom of artificial blood vessel in this position.
Summary of the invention
The present invention aims to provide a kind of artificial blood vessel protective sleeve that can solve the problems of the technologies described above and comprises the artificial blood vessel protector of this protective sleeve.
Particularly, the invention provides a kind of artificial blood vessel protective sleeve, described artificial blood vessel protective sleeve has tubular body, and wherein said artificial blood vessel protective sleeve is formed by connecting by multiple identical protection ring unit, and described protection ring unit comprises: ring body, an end face from described ring body, the axis direction along ring body, two the first flanges extended towards first direction, described two the first flanges are arranged face to face in the first diametric(al) of ring body, and described two the first flanges are respectively equipped with the hole vertical with described axis direction, and from another end face of described ring body, along the axis direction of ring body, towards two the second flanges that second direction opposite to the first direction extends, described two the second flanges are arranged face to face on the Second bobbin diameter direction of ring body, and described two the second flanges are respectively equipped with the projection vertical with described axis direction, described first diametric(al) at described two the first flange places becomes vertical relation with the described Second bobbin diameter direction at described two the second flange places, in described multiple protection ring unit, the connection of two adjacent protection ring unit is realized with being connected of projection on the second flange of another protection ring unit respectively by the hole on the first flange of one of them protection ring unit, described being connected is that matched in clearance connects, can relative to each other rotate to allow described two adjacent protection ring unit.
Because the protection ring unit in every two adjacent guard rings unit can both relative to each other rotate; the artificial blood vessel protective sleeve be formed by connecting like this so of the present invention has possessed the crooking ability of more direction, greater angle; and artificial blood vessel protective sleeve can not produce internal stress in BENDING PROCESS, thus surrounding body's internal organs can not be extruded.
In addition, the manufacture processing of such artificial blood vessel protective sleeve becomes simple, only needs to make some identical protection ring unit and then carries out connecting, thus reduce production cost.
And, as required, by the length selecting the quantity of the protection ring unit that will connect to carry out mediator's hemopoietic protection of pipe cover, compared with the artificial blood vessel protective sleeve that length is fixing, better adaptability can be provided with.
Preferably, the quantity of described protection ring unit is at least 4.
Preferably, two the first flanges of described protection ring unit are concordant with the outer circumference surface of ring body, and two the second flanges of described protection ring unit are concordant with the inner peripheral surface of ring body.So concordant structure of protection ring unit ensure that the inside of the tubular body of the artificial blood vessel protective sleeve connected and outside all without any step or projection, thus can not extrude surrounding body's internal organs of artificial blood vessel and the outside being positioned at artificial blood vessel protective sleeve 1 inside
Preferably, described protection ring unit is one-body molded by Shooting Technique by nonmetallic materials.More preferably, the seamed edge of described protection ring unit is with smooth injection moulding fillet.Injection moulding fillet on protection ring element edges can protect artificial blood vessel better, makes it from extrusion distortion, so that destroyed.
Present invention also offers a kind of artificial blood vessel protector, comprising: artificial blood vessel protective sleeve as elucidated before; The shackle member be connected with one end of described artificial blood vessel protective sleeve, described shackle member is for being clamped in an artificial accessory heart blood delivery side of pump by artificial blood vessel; And the tail ring to be connected with the other end of described artificial blood vessel protective sleeve.
Preferably, described shackle member is snap ring, described snap ring comprises: the fixed part being limited with the centre bore for receiving artificial blood vessel, described fixed part along its axis direction comprise annular base and with described annular base all-in-one-piece, in part annular annular halves; And to arrange face to face with the annular halves of described fixed part, cantilever in part annular, the annular base of described cantilever and described fixed part is separated, and the first end of the annular halves of the first end of described cantilever and described fixed part is integral, and limits an opening between the second end of the annular halves of the second end of described cantilever and described fixed part; And adjustment screw, described adjustment screw can be connected to the second end of the second end of described cantilever and the annular halves of described fixed part actively, thus by operating described adjustment screw, described cantilever is moved towards the annular halves of described fixed part, to be clamped in by artificial blood vessel on human assistance cardiac blood delivery side of pump.When snap ring is clamped on artificial blood vessel, the part that snap ring contacts with artificial blood vessel is except the adjustable movable annulus formed between cantilever and the annular halves of fixed part, also has the annular base of fixed part, this annular base is a complete clamping rings, therefore clamp more firm, avoid the clamping to artificial blood vessel and blood pump outlet of the prior art insufficient simultaneously, thus cause the situation of blood leakage and artificial blood vessel fold.
Preferably, the radial thickness of described cantilever is less than the radial thickness of described fixed part.The cantilever that radial thickness is less can more easily move towards the annular halves of fixed part, thus just artificial blood vessel can be clamped on human assistance cardiac blood delivery side of pump with less power operation snap ring.
Preferably, the excircle of the annular base of the fixed part of described snap ring is provided with two screwed holes, these two screwed holes are relatively arranged in the diametric(al) of annular base, and the external dimensions of annular base is designed to be accepted between two the first flanges into described protection ring unit, thus when the annular base of fixed part of described snap ring is accepted between two the first flanges into described protection ring unit, and two screwed holes on the annular base of the fixed part of described snap ring respectively with the hole on described protection ring unit two the first flanges on time, by two screws, described protection ring unit can be rotationally coupled to described snap ring, to realize the connection of described artificial blood vessel protective sleeve and described snap ring, guarantee that described artificial blood vessel protective sleeve can rotate relative to described snap ring simultaneously.Protection ring unit can be rotationally coupled to snap ring, and which ensure that artificial blood vessel protective sleeve is after being connected on snap ring, artificial blood vessel protective sleeve still can have larger angle of bend scope at link position place.
Preferably, plane is processed into respectively in two positions that the annular base of the fixed part of described snap ring is provided with described two screwed holes.The link position place of the annular base of the fixed part of snap ring and two the first both of protection ring unit forms plane contact, thus is more conducive to realizing protection ring unit and snap ring connection therebetween.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of a kind of artificial blood vessel protector of the prior art, shows artificial blood vessel protector and is connected with an artificial accessory heart blood delivery side of pump.
Fig. 2 is the axonometric chart of the artificial blood vessel protector of exemplary embodiment of the present, shows artificial blood vessel protector and is connected with an artificial accessory heart blood delivery side of pump.
Fig. 3 is the axonometric chart of the protection ring unit of exemplary embodiment of the present.
Fig. 4 is the axonometric chart of the snap ring of exemplary embodiment of the present.
Fig. 5 is a profile of snap ring shown in Fig. 4.
Fig. 6 illustrates that artificial blood vessel is clamped in the sectional view in the outlet of human assistance heart pump by the snap ring shown in Fig. 4, and this view also shows adjacent two protection ring unit of the artificial blood vessel protective sleeve be enclosed within artificial blood vessel sectional view in mating connection on right side.
Fig. 7 illustrates that protection ring unit is connected to the sectional view of snap ring.
Fig. 8 is the sectional view of the tail ring of exemplary embodiment of the present, and wherein tail ring is connected on artificial blood vessel protective sleeve.
Detailed description of the invention:
With reference to the axonometric chart that Fig. 2, Fig. 2 are artificial blood vessel protectors 100 of the present invention, illustrated therein is artificial blood vessel protector 100 and be connected with an artificial accessory heart blood delivery side of pump.Artificial blood vessel protector 100 comprises artificial blood vessel protective sleeve 1, be connected with one end of described artificial blood vessel protective sleeve 1 and for by shown in artificial blood vessel 5(Fig. 6) be clamped in shown in human assistance cardiac blood delivery side of pump 6(Fig. 6) and on snap ring 2 and the tail ring 3 that is connected with the other end of artificial blood vessel protective sleeve 1.
Artificial blood vessel protective sleeve 1 shown in Fig. 2 has tubular body and is formed by connecting by multiple identical protection ring unit 10.
Being configured in shown in Fig. 3, Fig. 6 and Fig. 7 of protection ring unit 10.Particularly, see Fig. 3, protection ring unit 10 comprises ring body 101, two the first flanges 102 and two the second flanges 103.
Two the end face 101as of the first flange 102 from ring body 101, the axis directions along ring body 101, to extend towards first direction.Two the first flanges 102 are arranged face to face in the first diametric(al) of ring body 101, and two the first flanges 102 are respectively equipped with the hole 104 vertical with described axis direction.
Two another end face 101bs of the second flange 103 from ring body 101, the axis directions along ring body 101, to extend towards second direction opposite to the first direction.Two the second flanges 103 are arranged face to face on the Second bobbin diameter direction of ring body 101, and two the second flanges 103 are respectively equipped with the projection 105 vertical with described axis direction.
First diametric(al) at two the first flange 102 places becomes vertical relation with the Second bobbin diameter direction at two the second flange 103 places.
Can according to the connection realizing two protection ring unit 10 as follows, namely that the hole 104 on the first flange 102 of one of them protection ring unit is in mating connection with the second flange 103 projection 105 of another protection ring unit respectively, as shown on the right side of Fig. 6.Described being connected is that matched in clearance connects.Like this, two the protection ring unit connected can about hole 104 relative to each other rotate with protruding 105 axis limited.
That is, two the protection ring unit connected are provided with a rotational freedom spatially.Preferably, at least 4 protection ring unit are connected in the manner described above, just can form the warp architecture of three rotational freedoms had spatially.
Because the protection ring unit in every two adjacent guard rings unit can both relative to each other rotate; so artificial blood vessel protective sleeve 1 has possessed the crooking ability of more direction, greater angle than the artificial blood vessel protective sleeve of prior art; and artificial blood vessel protective sleeve can not produce internal stress in BENDING PROCESS, thus surrounding body's internal organs can not be extruded.
In addition, the manufacture processing of such artificial blood vessel protective sleeve 1 becomes simple, only needs to make some identical protection ring unit and then carries out connecting, thus reduce production cost.
And, as required, by the length selecting the quantity of the protection ring unit that will connect to carry out mediator's hemopoietic protection of pipe cover 1, compared with the artificial blood vessel protective sleeve that length is fixing, better adaptability can be provided with.
Preferably, two the first flanges 102 of protection ring unit 10 are concordant with the outer circumference surface of ring body 101, and two the second flanges 103 of described protection ring unit 10 are concordant with the inner peripheral surface of ring body 101.So concordant structure of protection ring unit 10 ensure that the inside of the tubular body of the artificial blood vessel protective sleeve 1 connected and outside all without any step or projection, thus can not extrude surrounding body's internal organs of artificial blood vessel and the outside being positioned at artificial blood vessel protective sleeve 1 inside.
Preferably, protection ring unit 10 can be one-body molded by Shooting Technique by nonmetallic materials.More preferably, the seamed edge of protection ring unit 10 can, with smooth injection moulding fillet, to protect artificial blood vessel better, make it from extrusion distortion, so that destroyed.
Figure 4 and 5 show the exemplary embodiment of snap ring 2 of the present invention.Snap ring 2 comprises fixed part 21, cantilever 22 and adjustment screw 4.Adjustment screw 4 is only shown in Figure 6.
Fixed part 21 is limited with the centre bore for receiving artificial blood vessel 5, and fixed part 21 along its axis direction comprise annular base and with annular base all-in-one-piece, in part annular annular halves.
Cantilever 22 is part annular and arranges face to face with the annular halves of fixed part 21, defines the annular space for receiving artificial blood vessel 5 thus therebetween.Cantilever 22 is separated with the annular base of fixed part 21, and the first end 221 of cantilever 22 is integral with the first end 211 of the annular halves of fixed part 21, and limits an opening between the second end 212 of the annular halves of the second end 222 of cantilever 22 and fixed part 21.Like this, except first end 221, the remainder of cantilever 22 is in suspention shape, and therefore cantilever 22 can move towards the annular halves of fixed part 21, thus the annular space limited between the annular halves of cantilever 22 and fixed part 21 is diminished, then make chucking power therebetween increase.
Second end 222 of cantilever 22 can be provided with the screwed hole at least partially that can receive adjustment screw 4, correspondingly, second end 212 of the annular halves of fixed part 21 is also provided with the screwed hole at least partially that can receive adjustment screw 4, and such adjustment screw 4 just can be connected to the second end 212 of the second end 222 of cantilever 22 and the annular halves of fixed part 21 actively.After connecting, by screwing adjustment screw 4, cantilever 22 is moved towards the annular halves of fixed part 21, to be clamped on human assistance cardiac blood delivery side of pump 6 by artificial blood vessel 5.
Obviously, the screwed hole on the second end 212 two ends of the second end 222 of cantilever 22 and the annular halves of fixed part 21 is exemplary, also can adopt other structures be connected with adjustment screw 4.Such as, on two the second ends only one of wherein on screwed hole is set, and another is arranged through hole, adjustment screw adopts the adjustment screw with head, and the size of adjustment screw is set to that, when adjustment screw is screwed into screwed hole through through hole, the head of adjustment screw is fitted in outside through hole spacing by the side at through hole place.
Please note, when snap ring 21 is clamped on artificial blood vessel 5, the part that snap ring 21 contacts with artificial blood vessel 5 is except the adjustable movable annulus formed between cantilever 22 and the annular halves of fixed part 21, also has the annular base of fixed part 21, this annular base is a complete clamping rings, therefore clamp more firm, avoid the clamping to artificial blood vessel and blood pump outlet of the prior art insufficient simultaneously, thus cause the situation of blood leakage and artificial blood vessel fold.
Preferably, the radial thickness of cantilever 22 is less than the radial thickness of fixed part 21.Like this, the cantilever 22 that radial thickness is less just can more easily move towards the annular halves of fixed part 21, thus just artificial blood vessel 5 can be clamped on human assistance cardiac blood delivery side of pump 6 with less power operation snap ring 2.
In one embodiment of the invention, artificial blood vessel protective sleeve 1 is connected on snap ring 2, does not need the protection ring unit 10 for composition artificial blood vessel protective sleeve 1 to design special structure, also do not need to increase extra fixed part, but by following realization.Particularly, as shown in figs. 4 and 7, the excircle of the annular base of the fixed part 21 of snap ring 2 is provided with two screwed holes 213, 214, these two screwed holes 213, 214 relatively arrange in the diametric(al) of annular base, and the external dimensions of annular base is designed to be accepted between two the first flanges 102 into protection ring unit 10, thus when the annular base of fixed part 21 of snap ring 2 is accepted between two the first flanges 102 into protection ring unit 10, and two screwed holes 213 on the annular base of the fixed part 21 of snap ring 2, 214 respectively with the hole 104 on two the first flanges 102 of protection ring unit 10 on time, only shown in Figure 7 by two screw 7(screws 7) protection ring unit 10 can be rotationally coupled to snap ring 2, to realize the connection of artificial blood vessel protective sleeve 1 and snap ring 2, guarantee that artificial blood vessel protective sleeve 1 can rotate relative to snap ring 2 simultaneously.
Described above is protection ring unit 10 and can be rotationally coupled to snap ring 2, which ensure that artificial blood vessel protective sleeve 1 is after being connected on snap ring 2, artificial blood vessel protective sleeve 1 still can have larger angle of bend scope at link position place.
Preferably, plane (illustrating best in Fig. 5) is processed at two positions that the annular base of the fixed part 21 of snap ring 2 is provided with two screwed holes 213,214 respectively.Like this; two screwed holes 213,214 between two the first flanges 102 that the annular base of the fixed part 21 of snap ring 2 is accepted into protection ring unit 10 and on annular base respectively with the hole 104 on two the first flanges 102 of protection ring unit 10 on time; the link position place of the annular base of the fixed part 21 of snap ring 2 and both two first flanges 102 of protection ring unit 10 forms plane contact, thus is more conducive to realizing protection ring unit 10 and snap ring 2 connection therebetween.
In a word; above-described snap ring of the present invention 2 is designed to integral piece; its structural design allows artificial blood vessel protective sleeve 1 when without the need to increasing any structure, also without the need to increasing any extra parts; achieve the connection of artificial blood vessel protective sleeve 1 and snap ring 2; ensure that artificial blood vessel protective sleeve 1 still can have larger angle of bend scope at link position place, more firmly can clamp artificial blood vessel 5 and human assistance cardiac blood delivery side of pump 6 simultaneously.These are all compared with prior art had advantages.
Claims (10)
1. an artificial blood vessel protective sleeve (1); described artificial blood vessel protective sleeve (1) has tubular body; it is characterized in that: described artificial blood vessel protective sleeve (1) is formed by connecting by multiple identical protection ring unit (10), and described protection ring unit (10) comprising:
Ring body (101);
An end face (101a) from described ring body (101), the axis direction along ring body (101), towards first direction extend two the first flanges (102), described two the first flanges (102) are arranged face to face in the first diametric(al) of ring body (101), and described two the first flanges (102) are respectively equipped with the hole (104) vertical with described axis direction; And
Another end face (101b) from described ring body (101), the axis direction along ring body (101), two the second flanges (103) extended towards second direction opposite to the first direction, described two the second flanges (103) are arranged face to face on the Second bobbin diameter direction of ring body (101), and described two the second flanges (103) are respectively equipped with the projection (105) vertical with described axis direction
Described first diametric(al) at described two the first flange (102) places becomes vertical relation with the described Second bobbin diameter direction at described two the second flange (103) places,
In described multiple protection ring unit (10); the connection of two adjacent protection ring unit is realized with being connected of projection (105) on second flange (103) of another protection ring unit respectively by the hole (104) on first flange (102) of one of them protection ring unit; described being connected is that matched in clearance connects, and can relative to each other rotate to allow described two adjacent protection ring unit.
2. artificial blood vessel protective sleeve (1) as claimed in claim 1, is characterized in that: the quantity of described protection ring unit (10) is at least 4.
3. artificial blood vessel protective sleeve (1) as claimed in claim 1 or 2; it is characterized in that: two the first flanges (102) of described protection ring unit (10) are concordant with the outer circumference surface of ring body (101), and two the second flanges (103) of described protection ring unit (10) are concordant with the inner peripheral surface of ring body (101).
4. artificial blood vessel protective sleeve (1) as claimed in claim 1, is characterized in that: described protection ring unit (10) is one-body molded by Shooting Technique by nonmetallic materials.
5. artificial blood vessel protective sleeve (1) as claimed in claim 4, is characterized in that: the seamed edge of described protection ring unit (10) is with smooth injection moulding fillet.
6. an artificial blood vessel protector (100), comprising:
Artificial blood vessel protective sleeve (1) as described in one of claim 1-5;
The shackle member be connected with one end of described artificial blood vessel protective sleeve (1), described shackle member is used for artificial blood vessel (5) to be clamped in an artificial accessory heart blood delivery side of pump (6); And
The tail ring (3) be connected with the other end of described artificial blood vessel protective sleeve (1).
7. artificial blood vessel protector (100) as claimed in claim 6, is characterized in that: described shackle member is snap ring (2), and described snap ring (2) comprising:
Be limited with the fixed part (21) of the centre bore for receiving artificial blood vessel (5), described fixed part (21) along its axis direction comprise annular base and with described annular base all-in-one-piece, in part annular annular halves; And
That arrange face to face with the annular halves of described fixed part (21), in part annular cantilever (22), described cantilever (22) is separated with the annular base of described fixed part (21), and the first end (221) of described cantilever (22) is integral with the first end (211) of the annular halves of described fixed part (21), and limits an opening between second end (212) of the annular halves of second end (222) of described cantilever (22) and described fixed part (21); And
Adjustment screw (4), described adjustment screw (4) can be connected to second end (212) of second end (222) of described cantilever (22) and the annular halves of described fixed part (21) actively, thus described cantilever (22) is moved, to be clamped on human assistance cardiac blood delivery side of pump (6) by artificial blood vessel (5) towards the annular halves of described fixed part (21) by operating described adjustment screw (4).
8. artificial blood vessel protector (100) as claimed in claim 7, is characterized in that: the radial thickness of described cantilever (22) is less than the radial thickness of described fixed part (21).
9. artificial blood vessel protector (100) as claimed in claim 7 or 8, it is characterized in that: the excircle of the annular base of the fixed part (21) of described snap ring (2) is provided with two screwed holes (213, 214), these two screwed holes (213, 214) relatively arrange in the diametric(al) of annular base, and the external dimensions of annular base is designed to be accepted between two the first flanges (102) into described protection ring unit (10), thus when the annular base of fixed part (21) of described snap ring (2) is accepted between two the first flanges (102) into described protection ring unit (10), and two screwed holes (213 on the annular base of the fixed part (21) of described snap ring (2), 214) respectively with the hole (104) on described protection ring unit (10) two the first flanges (102) on time, by two screws (7), described protection ring unit (10) can be rotationally coupled to described snap ring (2), to realize the connection of described artificial blood vessel protective sleeve (1) and described snap ring (2), guarantee that described artificial blood vessel protective sleeve (1) can be rotated relative to described snap ring (2) simultaneously.
10. artificial blood vessel protector (100) as claimed in claim 9, is characterized in that: plane is processed into respectively in two positions that the annular base of the fixed part (21) of described snap ring (2) is provided with described two screwed holes (213,214).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310338562.2A CN104338187B (en) | 2013-08-06 | 2013-08-06 | Artificial blood vessel protection is overlapped and includes the artificial blood vessel protection device of this protection set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310338562.2A CN104338187B (en) | 2013-08-06 | 2013-08-06 | Artificial blood vessel protection is overlapped and includes the artificial blood vessel protection device of this protection set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104338187A true CN104338187A (en) | 2015-02-11 |
| CN104338187B CN104338187B (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310338562.2A Active CN104338187B (en) | 2013-08-06 | 2013-08-06 | Artificial blood vessel protection is overlapped and includes the artificial blood vessel protection device of this protection set |
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|---|---|---|---|---|
| CN108167629A (en) * | 2018-02-05 | 2018-06-15 | 镇江艾润润滑油有限公司 | A kind of assembly type lubricant extruded tube |
| CN108167629B (en) * | 2018-02-05 | 2024-04-09 | 艾润工业介质(镇江)有限公司 | Assembled lubricant extrusion pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104338187B (en) | 2016-12-28 |
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Application publication date: 20150211 Assignee: Aerospace Tai Xin Technology Co., Ltd. Assignor: Beijing Research Institute of Precise Mechatronic Controls Contract record no.: 2017120000029 Denomination of invention: Artificial blood vessel protecting sleeve and artificial blood vessel protection device comprising same Granted publication date: 20161228 License type: Common License Record date: 20170228 |
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