CN208355863U - A kind of transfusion needle and infusion device - Google Patents
A kind of transfusion needle and infusion device Download PDFInfo
- Publication number
- CN208355863U CN208355863U CN201721347878.8U CN201721347878U CN208355863U CN 208355863 U CN208355863 U CN 208355863U CN 201721347878 U CN201721347878 U CN 201721347878U CN 208355863 U CN208355863 U CN 208355863U
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- Prior art keywords
- needle
- protective case
- elastic
- accommodating chamber
- transfusion
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Abstract
The utility model discloses a kind of transfusion needle and infusion device, is related to medical instruments field.A kind of transfusion needle, comprising: needle body, needle body have needle tip；Protective case, the inside of protective case offer accommodating chamber, and one end of protective case has the needle point opening of connection accommodating chamber；Protective case is slideably sheathed on the periphery of needle body along the axis direction of needle body, and needle tip has the first state being open through needle point and is contained in the second state of accommodating chamber；Elastic locking portion, elastic lock section is set in accommodating chamber and is open close to needle point, and when needle tip is in first state, elastic locking portion is resisted against needle body circumferential surface and opens needle point opening, when needle tip is in the second state, elastic locking portion closes needle point opening under the action of elastic-restoring force.Which solve after infusion, the exposed problem of needle main body, the occurrence of avoiding needle pricks, reduce medical worker since needle thorn leads to the probability of infection.
Description
Technical field
The utility model relates to medical instruments fields, in particular to a kind of transfusion needle and infusion device.
Background technique
Needle pricks are a problems being very difficult to avoid completely in current medical worker's progress medical procedure, and clinical
Medical personnel clearly recognizes this shortage.
For existing transfusion needle after infusion after extracting patient body extraction, syringe needle can usually hurt operator, and
And transfusion needle by it is discarded when, needle main body is necessarily exposed, in discarded and during arrange exposed needle main body, medical staff
It is easy to be caused to damage medical staff by exposed needle pricks.
Utility model content
First of the utility model is designed to provide a kind of transfusion needle, which solve after infusion, needle main body
Exposed problem, the occurrence of avoiding needle pricks, reduce medical worker since needle thorn leads to the probability of infection.
Second of the utility model is designed to provide a kind of infusion device comprising above-mentioned category transfusion needle solves
After infusion, the exposed problem of needle main body, the occurrence of avoiding needle pricks, reduce medical worker due to
Needle thorn leads to the probability of infection.
The embodiments of the present invention are achieved in that
A kind of transfusion needle, comprising: needle body, needle body have needle tip；The inside of protective case, protective case offers accommodating chamber,
One end of protective case has the needle point opening of connection accommodating chamber；Protective case is slideably sheathed on needle body along the axis direction of needle body
Periphery, needle tip have through needle point opening first state and be contained in the second state of accommodating chamber；Elastic locking portion, bullet
Property lock section be set in accommodating chamber and close to needle point be open, when needle tip is in first state, elastic locking portion is resisted against needle
Body circumferential surface simultaneously opens needle point opening, and when needle tip is in the second state, elastic locking portion seals under the action of elastic-restoring force
Close needle point opening.
Inventor's discovery: existing transfusion needle is all that disposably, existing transfusion needle is suffered from after infusion from extraction
After person's body is extracted, syringe needle can usually hurt operator, and transfusion needle by it is discarded when, needle main body is necessarily exposed, is giving up
During abandoning and arranging exposed needle main body, medical staff is easy to be caused to cause medical staff by exposed needle pricks
Injury.
Inventor devises above-mentioned transfusion needle, is used for venous transfusion.
Transfusion needle includes needle body, protective case and elastic locking portion；Wherein needle body has the needle tip for being pierced into vein, needle body
The other end for being connected to perfusion tube or other liquid carrying structures；To avoid after infusion, needle tip is to medical worker
Or the other staff such as patient cause needle stick injury, protective case and elastic locking portion are arranged, specifically: the inside of protective case opens up
There is accommodating chamber and offer the needle point opening of connection accommodating chamber in one end of protective case, protective case can along the axis direction of needle body
It is slidably sheathed on the periphery of needle body, needle tip has the first state being open through needle point and is contained in the second shape of accommodating chamber
State, and the open and-shut mode that control needle point is open is carried out by elastic locking portion:
When being infused, needle tip is in first state, sequentially passes through accommodating chamber and needle point opening, elastic locking portion
Needle body circumferential surface is resisted against to open needle point opening, consequently facilitating being pierced into vein, after to be transported, slides protective case, so that
Protective case is slided to needle tip, so that needle tip enters in accommodating chamber, elastic locking portion is not affected by keeping out for needle body circumferential surface at this time,
Needle point opening is closed under the action of elastic-restoring force, so that needle tip is located in accommodating chamber, avoids needle tip again
It is open and is exposed to outer through needle point.It solves after infusion, the exposed problem of needle main body avoids needle pricks
The occurrence of, reduce medical worker due to needle thorn cause infection probability.
In an embodiment of the present invention:
The inside of protective case offers the needle channel being connected to accommodating chamber, the axis of needle channel and the axis of protective case
Collinearly, protective case offers the needle body opening being connected to needle channel far from one end that needle point is open；
Needle tip successively wears needle body opening, needle channel, accommodating chamber and needle point opening.
In an embodiment of the present invention:
Elastic locking portion has closure and elastic portion；
One end of elastic portion is set to receiving cavity wall, the other end and closure of elastic portion, and the size of closure is greater than
The size of needle point opening；
When needle tip is in first state, closure is resisted against needle body circumferential surface and opens needle point opening, at needle tip
When the second state, closure closes needle point opening under the action of the elastic-restoring force of elastic portion.
In an embodiment of the present invention:
Elastic portion is torsional spring, and one of pivoted arm of closure and torsional spring connects, and another pivoted arm of torsional spring is resisted against receiving
The inner wall of chamber.
In an embodiment of the present invention:
Accommodating chamber interval is divided into two cavitys by needle tip；
Two elastic locking portions are respectively arranged in cavity, and elastic locking portion includes closed plate and elastic component；
One end of elastic component and the inner wall of cavity connect, and the other end of closed plate and elastic component connects；
Two elastic locking portion mirror settings.
In an embodiment of the present invention:
Two closed plates are bonded with the inner wall surface close to needle point opening.
In an embodiment of the present invention:
The periphery wall of protective case is provided with handle.
In an embodiment of the present invention:
Protective case is detachably connected far from the peripheral wall of one end and needle body far from needle tip that needle point is open.
In an embodiment of the present invention:
Further include:
Travel limit portion；
The one end in travel limit portion and protective case are connected far from one end that needle point is open, the other end and needle in travel limit portion
The peripheral wall of body connects；
Travel limit portion needle tip corresponding with the total length of protective case is in the second state.
A kind of infusion device, comprising:
Perfusion tube；And
The transfusion needle of above-mentioned any one, perfusion tube are connected to needle body far from one end of needle tip.
The technical solution of the utility model at least has the following beneficial effects:
A kind of transfusion needle provided by the utility model, which solve after infusion, the exposed problem of needle main body,
The occurrence of avoiding needle pricks, reduce medical worker due to needle thorn cause infection probability.
A kind of infusion device provided by the utility model comprising above-mentioned category transfusion needle solves after infusion, needle
The exposed problem of main body, the occurrence of avoiding needle pricks, reduce medical worker since needle thorn leads to infection
Probability.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the first operation schematic diagram of transfusion needle in the utility model embodiment 1；
Fig. 2 is second of operation schematic diagram of transfusion needle in the utility model embodiment 1；
Fig. 3 is the enlarged drawing in Fig. 1 at III；
Fig. 4 is another structural schematic diagram of transfusion needle in the utility model embodiment 1；
Fig. 5 is another structural schematic diagram of transfusion needle in the utility model embodiment 1；
Fig. 6 be Fig. 5 in A-A to cross-sectional view.
Icon: 10- transfusion needle；11- needle body；12- protective case；13- elastic locking portion；20- transfusion needle；21- travel limit
Portion；30- transfusion needle；31- elastic locking portion；90- accommodating chamber；91- needle point opening；92- needle channel；93- needle body opening；110-
Needle tip；111- pipeline is connected to end；130- closure；131- elastic portion；310- closed plate；311- elastic component.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "lower"
For be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation or position usually put
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This
Outside, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
It is logical.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.
Embodiment 1
The present embodiment provides a kind of transfusion needles 10, are used for venous transfusion, and solve existing transfusion needle due to its structure
The shortcomings that lead to the problem of needle pricks often occur.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 shows the first work signal of transfusion needle 10 provided in this embodiment
Figure, Fig. 2 shows second of operation schematic diagrams of transfusion needle 10 provided in this embodiment.
Transfusion needle 10 includes needle body 11, protective case 12 and elastic locking portion 13.
Needle body 11 has needle tip 110 and the pipeline connection end far from needle tip 110 and for being connected to liquid-transport pipe-line
111, needle tip 110 is for being pierced into human vein.
Accommodating chamber 90 is offered inside protective case 12,12 one end of protective case has the needle point opening 91 of connection accommodating chamber 90,
In the present embodiment, such as Fig. 1, the inside of protective case 12 offers the needle channel 92 being connected to accommodating chamber 90, needle channel 92
Axis and protective case 12 axis collinear, protective case 12 offers and is connected to needle channel 92 far from one end of needle point opening 91
Needle body opening 93.
Protective case 12 is slideably sheathed on the periphery of needle body 11 along the axis direction of needle body 11, and needle tip 110, which has, to be passed through
The first state for point opening 91 of threading a needle and the second state for being contained in accommodating chamber 90, wherein needle tip 110 successively wears needle body and opens
Mouth 93, needle channel 92, accommodating chamber 90 and needle point opening 91.Incorporated by reference to Fig. 1 and Fig. 2, Fig. 1 shows needle tips 110 to be in the
One state, Fig. 2 indicate that needle tip 110 is in the second state.It should be noted that in the present embodiment, needle channel 92 and guarantor
The axis collinear of sheath 12, in other specific embodiments, needle channel 92 can not with the axis collinear of protective case 12, and
In other specific embodiments, it can be not provided with needle channel 92, needle tip 110 to the pipeline of needle body 11 is connected to the outer of end 111
Wall can be exposed to the external world, and accommodating chamber 90 need to only be arranged.
When that need to be infused, needle tip 110 is in first state, is exposed to outside, when terminating infusion, needs so that needle tip
110 are in the second state, avoid exposure to it is outer, at this point, to prevent needle tip 110 again through needle point opening 91, setting elasticity
Sticking department 13, elastic locking portion 13 is set in accommodating chamber 90 and close to needle point opening 91, when needle tip 110 is in first state
When, elastic locking portion 13 is resisted against 11 circumferential surface of needle body and opens needle point opening 91, when needle tip 110 is in the second state, bullet
Property sticking department 13 closed under the action of elastic-restoring force needle point opening 91.
Specifically, elastic locking portion 13 has closure 130 and elastic portion 131, and one end of elastic portion 131 is set to appearance
Receive 90 inner wall of chamber, the other end of elastic portion 131 is connect with closure 130, and the size of closure 130 is greater than the ruler of needle point opening 91
Very little, further, referring to FIG. 3, Fig. 3 is the enlarged drawing in Fig. 1 at III, elastic portion 131 is torsional spring, closure 130 and torsional spring
The connection of one of pivoted arm, another pivoted arm of torsional spring is resisted against the inner wall of accommodating chamber 90.
When needle tip 110 is in first state, closure 130 is resisted against 11 circumferential surface of needle body, due to the blocking of needle body 11
And the elastic force of elastic portion 131 is overcome, so that closure 130 is far from needle point opening 91, so that needle point opening 91 is opened,
When needle tip 110 is in the second state, closure 130 is closed needle point under the action of the elastic-restoring force of elastic portion 131 and is opened
Mouth 91.
Please referring again to Fig. 1, protective case 12 one end and peripheral wall of the needle body 11 far from needle tip 110 far from needle point opening 91
It is detachably connected.It in this embodiment, can be to snap connection in other specific embodiments to be threadedly coupled
Etc. detachably connected, to guarantee that needle tip 110 can steadily be in first state.
For convenience of sliding protective case 12, handle (not shown) can be set in the periphery of protective case 12.
Inventor's discovery: existing transfusion needle is all that disposably, existing transfusion needle is suffered from after infusion from extraction
After person's body is extracted, syringe needle can usually hurt operator, and transfusion needle by it is discarded when, needle main body is necessarily exposed, is giving up
During abandoning and arranging exposed needle main body, medical staff is easy to be caused to cause medical staff by exposed needle pricks
Injury.
Inventor devises above-mentioned transfusion needle 10, is used for venous transfusion.
Transfusion needle 10 includes needle body 11, protective case 12 and elastic locking portion 13；Wherein needle body 11, which has, is pierced into vein
Needle tip 110, the other end of needle body 11 is for being connected to perfusion tube or other liquid carrying structures；To avoid after infusion,
Needle tip 110 causes needle stick injury to other staff such as medical worker or patients, and protective case 12 and elastic locking portion 13 is arranged,
Specifically: the inside of protective case 12 offers accommodating chamber 90 and offers the needle of connection accommodating chamber 90 in one end of protective case 12
Point opening 91, protective case 12 are slideably sheathed on the periphery of needle body 11 along the axis direction of needle body 11, and needle tip 110, which has, to be passed through
The first state for point opening 91 of threading a needle and the second state for being contained in accommodating chamber 90, and controlled by elastic locking portion 13
The open and-shut mode of needle point opening 91:
When being infused, needle tip 110 is in first state, sequentially passes through accommodating chamber 90 and needle point opening 91, bullet
Property sticking department 13 be resisted against 11 circumferential surface of needle body to open needle point opening 91, it is sliding after to be transported consequently facilitating be pierced into vein
Dynamic protective case 12, so that protective case 12 is slided to needle tip 110, so that needle tip 110 enters in accommodating chamber 90, snap lock at this time
Determine portion 13 and be not affected by keeping out for 11 circumferential surface of needle body, needle point opening 91 is closed under the action of elastic-restoring force, so that needle point
End 110 is located in accommodating chamber 90, avoids needle tip 110 and is exposed to outer through needle point opening 91 again.It solves and is being infused
After, the exposed problem of needle main body, the occurrence of avoiding needle pricks, reduce medical worker since needle thorn is led
Cause the probability of infection.
It should be noted that avoid losing for protective case 12, referring to FIG. 4, Fig. 4 provides another transfusion needle 20,
Its with transfusion needle 10 the difference is that: transfusion needle 20 further includes travel limit portion 21: travel limit portion 21 is in the present embodiment
It can be open for the structure on other soft ground, one end and protective case 12 far from needle point in other specific embodiments for rope
91 one end connection, the other end in travel limit portion 21 are connect with the peripheral wall of needle body 11.Travel limit portion 21 and protective case 12
Total length corresponds to needle tip 110 and is in the second state, to limit further sliding of the protective case 12 to needle tip 110, keeps away
Exempt from needle tip 110 and is detached from accommodating chamber 90.It should be noted that in the present embodiment, setting travel limit portion 21 can be cancelled, can be led to
Cross the damping increased between protective case 12 and needle body 11.
It should be noted that please referring to Fig. 5 and Fig. 6, Fig. 5 provides the third transfusion needle 30, Fig. 6 provided in this embodiment
For A-A in Fig. 5 to cross-sectional view: transfusion needle 30 and transfusion needle 10 the difference is that: needle tip 110 is by the interval point of accommodating chamber 90
At two cavitys；Two elastic locking portions 31 are respectively arranged in cavity, and elastic locking portion 31 includes closed plate 310 and elasticity
Part 311, one end of elastic component 311 and the inner wall of cavity connect, and closed plate 310 is connect with the other end of elastic component 311, two bullets
Property 31 mirror settings of sticking department.Two closed plates 310 are bonded with the inner wall surface close to needle point opening 91, two closed plates 310
Common closing needle point opening 91.
It should be noted that the present embodiment also provides a kind of infusion device comprising perfusion tube and transfusion needle 10, infusion
Pipe is connected to needle body 11 far from one end of needle tip 110.Wherein, transfusion needle 10 can be replaced by transfusion needle 20, transfusion needle 30.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of transfusion needle characterized by comprising
Needle body, the needle body have needle tip；
Protective case, the inside of the protective case offer accommodating chamber, and one end of the protective case, which has, is connected to the accommodating chamber
Needle point opening；
The protective case is slideably sheathed on the periphery of the needle body along the axis direction of the needle body, and the needle tip has
The first state being open through the needle point and the second state for being contained in the accommodating chamber；
Elastic locking portion, the elastic locking portion is set in the accommodating chamber and is open close to the needle point, when the needle point
When end is in the first state, the elastic locking portion is resisted against the needle body circumferential surface and opens the needle point opening, works as institute
When stating needle tip and being in second state, the elastic locking portion closes the needle point under the action of elastic-restoring force and opens
Mouthful.
2. transfusion needle according to claim 1, it is characterised in that:
The inside of the protective case offers the needle channel being connected to the accommodating chamber, the axis of the needle channel with it is described
The axis collinear of protective case, the protective case offer the needle being connected to the needle channel far from one end that the needle point is open
Body opening；
The needle tip successively wears the needle body opening, the needle channel, the accommodating chamber and needle point opening.
3. transfusion needle according to claim 1, it is characterised in that:
The elastic locking portion has closure and elastic portion；
One end of the elastic portion is set to the receiving cavity wall, and the other end of the elastic portion is connect with the closure,
The size of the closure is greater than the size of needle point opening；
When the needle tip is in the first state, the closure is resisted against the needle body circumferential surface and opens the needle point
Opening, when the needle tip is in second state, effect of the closure in the elastic-restoring force of the elastic portion
The lower closing needle point opening.
4. transfusion needle according to claim 3, it is characterised in that:
The elastic portion is torsional spring, and the closure is connect with one of pivoted arm of the torsional spring, another turn of the torsional spring
Arm is resisted against the inner wall of the accommodating chamber.
5. transfusion needle according to claim 1, it is characterised in that:
The accommodating chamber interval is divided into two cavitys by the needle tip；
Two elastic locking portions are respectively arranged in the cavity, and the elastic locking portion includes closed plate and elasticity
Part；
One end of the elastic component is connect with the inner wall of the cavity, and the closed plate is connect with the other end of the elastic component；
Two elastic locking portion mirror settings.
6. transfusion needle according to claim 5, it is characterised in that:
Two closed plates are bonded with the inner wall surface close to needle point opening.
7. transfusion needle according to claim 1, it is characterised in that:
The periphery wall of the protective case is provided with handle.
8. transfusion needle according to claim 1, it is characterised in that:
Peripheral wall of the one end that the protective case is open far from the needle point with the needle body far from the needle tip removably connects
It connects.
9. transfusion needle according to claim 1, which is characterized in that further include:
Travel limit portion；
The one end in the travel limit portion is connect with one end that the protective case is open far from the needle point, the travel limit portion
The other end connect with the peripheral wall of the needle body；
The travel limit portion needle tip corresponding with the total length of the protective case is in second state.
10. a kind of infusion device characterized by comprising
Perfusion tube；And
Transfusion needle described in any one of claim 1-9, the perfusion tube and the one end of the needle body far from the needle tip
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347878.8U CN208355863U (en) | 2017-10-17 | 2017-10-17 | A kind of transfusion needle and infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347878.8U CN208355863U (en) | 2017-10-17 | 2017-10-17 | A kind of transfusion needle and infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208355863U true CN208355863U (en) | 2019-01-11 |
Family
ID=64913486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721347878.8U Expired - Fee Related CN208355863U (en) | 2017-10-17 | 2017-10-17 | A kind of transfusion needle and infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208355863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112155564A (en) * | 2020-10-12 | 2021-01-01 | 普昂(杭州)医疗科技有限公司 | Needle protection structure, protection method and needle device |
| CN112450926A (en) * | 2020-12-14 | 2021-03-09 | 普昂(杭州)医疗科技股份有限公司 | Needle protection structure, protection method and needle device |
-
2017
- 2017-10-17 CN CN201721347878.8U patent/CN208355863U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112155564A (en) * | 2020-10-12 | 2021-01-01 | 普昂(杭州)医疗科技有限公司 | Needle protection structure, protection method and needle device |
| CN112450926A (en) * | 2020-12-14 | 2021-03-09 | 普昂(杭州)医疗科技股份有限公司 | Needle protection structure, protection method and needle device |
| CN112450926B (en) * | 2020-12-14 | 2024-02-23 | 普昂(杭州)医疗科技股份有限公司 | Needle protection structure, protection method and needle device |
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Granted publication date: 20190111 Termination date: 20211017 |