CN204723485U - A kind of internal-fistula needle being provided with protector - Google Patents
A kind of internal-fistula needle being provided with protector Download PDFInfo
- Publication number
- CN204723485U CN204723485U CN201520467778.3U CN201520467778U CN204723485U CN 204723485 U CN204723485 U CN 204723485U CN 201520467778 U CN201520467778 U CN 201520467778U CN 204723485 U CN204723485 U CN 204723485U
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- CN
- China
- Prior art keywords
- protective sleeve
- overcoat
- needle
- internal
- needle body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of internal-fistula needle being provided with protector, the needle body (2) comprising tube for transfusion (1) and be connected with tube for transfusion (1), the outer surface that described needle body (2) contacts with tube for transfusion (1) is coated with overcoat (3), it is characterized in that: one end of the nearly needle body (2) of described overcoat (3) is provided with protective sleeve (4), described protective sleeve (4) connects with overcoat (3), through hole (5) is provided with in described protective sleeve (4), at least three flexible baffles (6) are provided with in described protective sleeve (4), described flexible baffle (6) is positioned at the top of through hole (5), three described flexible baffles (6) surround a circle in a free state, spring (7) is provided with in described protective sleeve (4), described spring (7) is enclosed within needle body (2), described spring (7) is in compressive state, the internal-fistula needle being provided with protector that this utility model provides a kind of security reliability high and easy to use.
Description
Technical field
This utility model relates to medical apparatus and instruments, particularly relates to a kind of internal-fistula needle being provided with protector.
Background technology
Internal-fistula needle is a kind of blood collection device being mainly used in hemodialysis.By internal-fistula needle and the blood transfusion flexible pipe that is connected with internal-fistula needle, patient is dialysed, after the blood of patient is imported into and dialyses in hemodialysis apparatus, be back to again in patient body, all exposed before and after whole internal-fistula needle uses, after being used to complete, owing to there is no protector, outside needle tubing is exposed to, so make medical personnel and patient in cleaning, easily by needle stick injury time discarded, and cause pollution and infect, according to prior art, State Intellectual Property Office discloses a kind of internal-fistula needle of Novel protective, application number is 2015101155593, liquid-transport pipe-line is established slip sheath, slip sheath is longer than needle tubing, utilize slip sheath to slide and cover needle tubing to realize protection, but rely on slip sheath to be slidably fitted on needle body to realize, be slidably matched unreliable, when syringe needle being holded up come, slip sheath cover easily slides, syringe needle can expose, poor reliability, use inconvenience.
Utility model content
Technical problem to be solved in the utility model is: the defect overcoming above prior art, provides the internal-fistula needle being provided with protector that a kind of security reliability is high and easy to use.
Technical solution adopted in the utility model is: a kind of internal-fistula needle being provided with protector, the needle body comprising tube for transfusion and be connected with tube for transfusion, the outer surface that described needle body contacts with tube for transfusion is coated with overcoat, one end of the nearly needle body of described overcoat is provided with protective sleeve, described protective sleeve connects with overcoat, through hole is provided with in described protective sleeve, at least three flexible baffles are provided with in described protective sleeve, described flexible baffle is positioned at the top of through hole, three described flexible baffles surround a circle in a free state, spring is provided with in described protective sleeve, described spring housing is on needle body, described spring is in compressive state, described protective sleeve and the power connected between overcoat are greater than spring elastic force under compression, described needle body stretches out protective sleeve.
After adopting above structure, this utility model compared with prior art has the following advantages: protective sleeve connects with overcoat, spring is located in protective sleeve simultaneously, now spring is in compressive state, after internal-fistula needle is finished, needs collect, if syringe needle is in exposed state, be easy to hurt medical personnel and patient, so that cause the consequences such as cross infection, at this moment firmly protective sleeve is pushed away toward needle body cephalad direction, connecting between protective sleeve with overcoat breaks, spring handle protective sleeve ejects, flexible baffle restores to the original state, the flexible baffle of protective sleeve covers needle body head, people is not easy to hurt, safety, reliability is high, easy to use.
As preferably, it is be provided with nylon tape between finger guard and overcoat that described protective sleeve connects with overcoat, and connect reliable, the elastic force that can bear spring is easily inferred by people again.
As preferably, one end of the nearly needle body of described overcoat is provided with projection, and described protective sleeve is connected in projection, connects reliable.
As preferably, described protective sleeve is provided with pushing block, convenient protective sleeve is released, and connecting between protective sleeve with overcoat is broken.
As preferably; it also comprises establishes on the coat and about axisymmetric two pads in overcoat center; described pushing block is positioned at one end of nearly overcoat; described pushing block is positioned at the plane at two pieces of pad axis of symmetry places; facilitate a hands that protective sleeve is released; easy to operate, pad facilitates medical personnel not need directly to contact tube for transfusion with portable tube for transfusion, convenient, safety.
As preferably, one end that described spring is positioned at protective sleeve is fixed on protective sleeve outer surface, does not take up space, and does not affect the proper motion of protective sleeve.
As preferably, three described flexible baffle shape sizes are identical, and cost is low.
As preferably, described flexible baffle is 2 millimeters ~ 10 millimeters with the distance of needle body head in a free state, and after spring handle protective sleeve ejects, flexible baffle and needle body head have spacing, and have buffering when people encounters, be not easy to be hurt, reliability is high.
As preferably, described flexible baffle is 5 millimeters with the distance of needle body head in a free state, and effect is best, can play a protective role, and can ensure again the intensity of protective sleeve.
Accompanying drawing explanation
Fig. 1 is the front sectional view that a kind of internal-fistula needle nylon tape being provided with protector of this utility model does not break.
Fig. 2 is a kind of front sectional view being provided with the internal-fistula needle nylon tape fracture of protector of this utility model.
Fig. 3 is the front view that a kind of internal-fistula needle nylon tape being provided with protector of this utility model does not break.
Wherein, 1, tube for transfusion, 2, needle body, 3, overcoat, 4, protective sleeve, 5, through hole, 6, flexible baffle, 7, spring, 8, nylon tape, 9, protruding, 10, pushing block, 11, pad.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in the figure, this utility model provides a kind of internal-fistula needle being provided with protector, the needle body 2 comprising tube for transfusion 1 and be connected with tube for transfusion 1, the outer surface that described needle body 2 contacts with tube for transfusion 1 is coated with overcoat 3, one end of the nearly needle body 2 of described overcoat 3 is provided with protective sleeve 4, described protective sleeve 4 connects with overcoat 3, through hole 5 is provided with in described protective sleeve 4, at least three flexible baffles 6 are provided with in described protective sleeve 4, described flexible baffle 6 is positioned at the top of through hole 5, three described flexible baffles 6 surround a circle in a free state, gap is had between described flexible baffle 6, spring 7 is provided with in described protective sleeve 4, described spring 7 is enclosed within needle body 2, described spring 7 is in compressive state, described protective sleeve 4 is greater than spring 7 elastic force under compression with the power connected between overcoat 3, described needle body 2 stretches out protective sleeve 4, the utility model has the advantages that protective sleeve 4 connects with overcoat 3, spring 7 is located in protective sleeve 4 simultaneously, now spring 7 is in compressive state, after internal-fistula needle is finished, needs collect, if syringe needle is in exposed state, be easy to hurt medical personnel and patient, so that cause the consequences such as cross infection, at this moment firmly protective sleeve 4 is pushed away toward needle body 2 cephalad direction, connecting between protective sleeve 4 with overcoat 3 breaks, spring 7 ejects protective sleeve, flexible baffle 6 restores to the original state, the flexible baffle 6 of protective sleeve 4 covers needle body 2 head, people is not easy to hurt, safety, reliability is high, easy to use.
It is be provided with nylon tape 8 between finger guard 4 and overcoat 3 that described protective sleeve 4 connects with overcoat 3, and connect reliable, the elastic force that can bear spring 7 is easily inferred by people again.
One end of the nearly needle body 2 of described described overcoat 3 is provided with protruding 9, and described protective sleeve 4 is connected on protruding 9, connects reliable.
One end of the nearly overcoat 3 of described protective sleeve 4 is provided with pushing block 10, conveniently protective sleeve 4 is released, connecting between protective sleeve 4 with overcoat 3 is broken.
It also comprises and to be located on overcoat 3 and about axisymmetric two pads 11 in overcoat 3 center; described pushing block 10 is positioned at one end of nearly overcoat 3; described pushing block 10 is positioned at the plane at two pieces of pad 11 axis of symmetry places; facilitate a hands that protective sleeve 4 is released; easy to operate; pad 11 facilitates medical personnel not need directly to contact tube for transfusion with portable tube for transfusion, convenient, safety.
One end that described spring 7 is positioned at protective sleeve 4 is fixed on protective sleeve 4 outer surface, does not take up space, does not affect the proper motion of protective sleeve 4.
Three described flexible baffle 6 shape sizes are identical, and cost is low.
Described flexible baffle 6 is 2 millimeters ~ 10 millimeters with the distance of needle body 2 head in a free state, and spring 7 ejects rear flexible baffle 6 protective sleeve 4 has spacing with needle body 2 head, and have buffering when people encounters, be not easy to be hurt, reliability is high.
Described flexible baffle 6 is 5 millimeters with the distance of needle body 2 head in a free state, and effect is best, can play a protective role, and can ensure again the intensity of protective sleeve 4.
Specifically, principle of the present utility model is that protective sleeve 4 connects with overcoat 3, spring 7 is located in protective sleeve 4 simultaneously, now spring 7 is in compressive state, after internal-fistula needle is finished, needs collect, if syringe needle is in exposed state, be easy to hurt medical personnel and patient, so that cause the consequences such as cross infection, at this moment firmly protective sleeve 4 is pushed away toward needle body 2 cephalad direction, connecting between protective sleeve 4 with overcoat 3 breaks, spring 7 ejects protective sleeve, flexible baffle 6 restores to the original state, the flexible baffle 6 of protective sleeve 4 covers needle body 2 head, people is not easy to hurt, safety, reliability is high, easy to use, flexible baffle 6 can be regarded as a positive round and is divided into some parts, in addition, flexible baffle 6 can be different, relative flexible baffle 6 one large one little, they are all the parts in same circle, small one and large one, when the flexible baffle 6 of protective sleeve 4 covers needle body 2 head, because needle body 2 head is positioned at the centre of protective sleeve 4, and the part of the contact of relative flexibility baffle plate 6 is not in the centre of protective sleeve 4, needle body 2 head is more difficult to be stretched out outside protective sleeve 4, reliability is high.
Be described with regard to this utility model preferred embodiment above, but can not be interpreted as it is limitations on claims.This utility model is not only confined to above embodiment, and its concrete structure allows to change, and all various changes done in the protection domain of this utility model demand for independence are all in protection domain of the present utility model.
Claims (9)
1. one kind is provided with the internal-fistula needle of protector, the needle body (2) comprising tube for transfusion (1) and be connected with tube for transfusion (1), the outer surface that described needle body (2) contacts with tube for transfusion (1) is coated with overcoat (3), it is characterized in that: one end of the nearly needle body (2) of described overcoat (3) is provided with protective sleeve (4), described protective sleeve (4) connects with overcoat (3), through hole (5) is provided with in described protective sleeve (4), at least three flexible baffles (6) are provided with in described protective sleeve (4), described flexible baffle (6) is positioned at the top of through hole (5), three described flexible baffles (6) surround a circle in a free state, spring (7) is provided with in described protective sleeve (4), described spring (7) is enclosed within needle body (2), described spring (7) is in compressive state, described protective sleeve (4) is greater than spring (7) elastic force under compression with the power connected between overcoat (3), described needle body (2) stretches out protective sleeve (4).
2. a kind of internal-fistula needle being provided with protector according to claim 1, is characterized in that: it is be provided with nylon tape (8) between finger guard (4) and overcoat (3) that described protective sleeve (4) connects with overcoat (3).
3. a kind of internal-fistula needle being provided with protector according to claim 2; it is characterized in that: one end of the nearly needle body (2) of described overcoat (3) is provided with projection (9), and described protective sleeve (4) is connected in projection (9).
4. a kind of internal-fistula needle being provided with protector according to claim 3, is characterized in that: described protective sleeve (4) is provided with pushing block (10).
5. a kind of internal-fistula needle being provided with protector according to claim 4; it is characterized in that: it also comprises, and to be located at overcoat (3) upper and about axisymmetric two pads (11) in overcoat (3) center; described pushing block (10) is positioned at one end of nearly overcoat (3), and described pushing block (10) is positioned at the plane at two pieces of pad (11) axis of symmetry places.
6. a kind of internal-fistula needle being provided with protector according to claim 1, is characterized in that: one end that described spring (7) is positioned at protective sleeve (4) is fixed on protective sleeve (4) outer surface.
7. a kind of internal-fistula needle being provided with protector according to claim 1, is characterized in that: three described flexible baffle (6) shape sizes are identical.
8. a kind of internal-fistula needle being provided with protector according to claim 1, is characterized in that: described flexible baffle (6) is 2 millimeters ~ 10 millimeters with the distance of needle body (2) head in a free state.
9. a kind of internal-fistula needle being provided with protector according to claim 8, is characterized in that: described flexible baffle (6) is 5 millimeters with the distance of needle body (2) head in a free state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520467778.3U CN204723485U (en) | 2015-06-30 | 2015-06-30 | A kind of internal-fistula needle being provided with protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520467778.3U CN204723485U (en) | 2015-06-30 | 2015-06-30 | A kind of internal-fistula needle being provided with protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204723485U true CN204723485U (en) | 2015-10-28 |
Family
ID=54381875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520467778.3U Expired - Fee Related CN204723485U (en) | 2015-06-30 | 2015-06-30 | A kind of internal-fistula needle being provided with protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204723485U (en) |
-
2015
- 2015-06-30 CN CN201520467778.3U patent/CN204723485U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20160630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |