CN102716535B - Self-locking disposable infusion apparatus - Google Patents
Self-locking disposable infusion apparatus Download PDFInfo
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- CN102716535B CN102716535B CN201210251654.2A CN201210251654A CN102716535B CN 102716535 B CN102716535 B CN 102716535B CN 201210251654 A CN201210251654 A CN 201210251654A CN 102716535 B CN102716535 B CN 102716535B
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- dropping funnel
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Abstract
The invention discloses a self-locking disposable infusion apparatus which comprises an infusion tube. The infusion tube is provided with a puncture plug needle, a drop funnel, a flow regulator and a filter sequentially from the front end, wherein the puncture plug needle is inserted into an infusion bottle; the drop funnel is used for gathering liquid medicine; the flow regulator is used for regulating the flow rate of the liquid medicine; the filter is used for filtering impurities in the liquid medicine; an infusion needle is arranged at the tail end; and the infusion apparatus also comprises a needle head seat and a self-locking device, wherein the needle head seat is inserted in one way and covers the infusion needle head, and the self-locking device prevents the infusion needle from retreating. Furthermore, a sealing bowl type automatic sealing device is also arranged in the drop funnel of the disposable infusion device. The self-locking disposable infusion apparatus disclosed by the invention can avoid accidental injury of a human body caused by the needle head and prevent the potential safety hazard such as air suction, back blood and the like in the infusion process, and is safe and convenient to use.
Description
Technical field
The present invention relates to medical instruments field, especially, relate to a kind of self-locking disposable transfusion device.
Background technology
Disposable transfusion device is the medical treatment consumptive materials of the venous transfusion generally applied at present.Existing traditional disposable transfusion device composition structure as shown in Figure 1, forms primarily of wearing plug pin (not shown in figure 1), dropping funnel 2, tube for transfusion 3, flow regulator 4, filter 5 and transfusion needle 6; As shown in Figure 1, the top of dropping funnel 2 is provided with feed tube (not shown in figure 1) and feed liquor base 1.This traditional disposable transfusion device do not possess transfusion terminate or more renew infusion bottle (or bag) time automatically by the infusion channel in transfusion device close function; And all by coated for syringe needle 601 from pinning, can not possess and forcing to destroy function, can not prevent from reusing after transfusion terminates; Use rear exposed syringe needle 601 just in case the people that runs over and injure very easily infect blood born virus (hepatitis, HIV (human immunodeficiency virus) etc.), can not prevent to people unexpected injury.This traditional disposable transfusion device is not disposable safe transfusion system truly, can not stop to reclaim hidden danger.
Application number be 200320131818.4 patent documentation and application number be the patent documentation of 200920259763.2, all disclose the structure increasing a set of more complicated spool and seat on the basis of existing traditional disposable transfusion device in dropping funnel 2 structure, until transfusion end or when more renewing infusion bottle (or bag), infusion channel is closed in time, prevent air from entering patient's intravenous or patient's blood back in infusion channel with tail washings, impact to patient safety.These disposable transfusion devices all adopt a set of more complicated spool and seat to solve this problem of closed channel, but complex structure, poor reliability, manufacturing cost is high, test is difficult, and this structure makes dropping funnel 2 pliability be deteriorated when being unfavorable for starting to infuse and extrudes aerofluxus simultaneously.
Summary of the invention
The object of the invention is to provide a kind of syringe needle of avoiding to the unexpected injury of human body, self-locking disposable transfusion device safe and convenient to use, easily causes unexpected injury to human body to solve the exposure of existing syringe needle for transfusion device and can not stop reusable technical problem.
For achieving the above object, the invention provides a kind of self-locking disposable transfusion device, comprise tube for transfusion, described tube for transfusion be equiped with successively from front end for insert infusion bottle wear plug pin, for converge medicinal liquid dropping funnel, for the flow regulator of regulating flow velocity and the filter for impurity in filtering liquid medicine, and being provided with transfusion needle at end, described transfusion device also comprises one for unidirectional insertion and the needle holder of coated described transfusion needle the self-locking device of the handle of fixing described transfusion needle.
As a further improvement on the present invention:
Described self-locking device comprises for inserting and the needle stand of the syringe needle of coated described transfusion needle and can unidirectionally to described needle stand direction pushing open and the elastic fin automatically rebounded; Spacing between described elastic fin and described needle stand is not less than the width of the handle of a described transfusion needle.
Described self-locking device also comprises the passage moved to described needle stand for described transfusion needle; Described elastic fin is located on described passage.
Described passage is laid by the fin seat be located on described flow regulator and gear fin the gap formed and is formed, and described fin seat and described gear fin are all arranged in the Way in of described needle stand; Described elastic fin initiating terminal is located on described fin seat, and end stretches out to described needle stand direction and extends between described gear fin and described needle stand.
Described needle stand offers the pin hole that the syringe needle for described transfusion needle inserts, described passage and described pin hole are on the same axis.
Be provided with obturating cup in described dropping funnel, the rim of a bowl of described obturating cup is arranged towards the medicine liquid outlet of described dropping funnel; When in described dropping funnel without medicinal liquid time, described medicine liquid outlet is higher than the rim of a bowl edge of described obturating cup.
The body of described dropping funnel is made up of dropping funnel cylinder and the seal receptacle being set in described dropping funnel cylinder lower end, described medicine liquid outlet is located at the axle center place of described seal receptacle, offer U-loop groove in the outside in axle center in described seal receptacle, described obturating cup tips upside down in described U-loop groove.
The bowl inner height of described obturating cup is greater than the diameter of the body of described dropping funnel, and the external diameter of the rim of a bowl of described obturating cup is less than the internal diameter of the body of described dropping funnel.
The rim of a bowl edge of described obturating cup is circumferentially provided with multiple upwards recessed breach (now, obturating cup can be fixed in U-shaped annular groove).
Described obturating cup adopts soft non-toxic plastic to make.
The present invention has following beneficial effect:
1, self-locking disposable transfusion device of the present invention, have employed unidirectional insertion and the syringe needle of coated transfusion needle stop the self-locking device of transfusion needle rollback; Can after transfusion complete, unidirectional for the syringe needle of transfusion needle insertion is coated, and cannot extract, avoid the unexpected injury of syringe needle to human body; And stopped reusing of transfusion device, what prevent transfusion device reuses the pathogen transmission and cross infection that cause, solves the recovery hidden danger of this medical waste.
2, self-locking disposable transfusion device of the present invention, the passage moved to described needle stand as transfusion needle in the gap that self-locking device adopts fin seat and gear fin interval to arrange, and adopt the needle stand fixed needle having offered pin hole, structure is simple, and materials are few.When the syringe needle of the transfusion device used inserts in pin hole, firmly make the handle of transfusion needle by the passage between fin seat and gear fin, and pushed open by elastic fin and handle is pushed aside and by elastic fin, then elastic fin rebounds reinstatement automatically; When wanting to make syringe needle toward rollback, handle is blocked by elastic fin, and the end of elastic fin is kept off fin and blocks, thus syringe needle is locked in the pin hole of needle stand all the time, avoids the unexpected injury of syringe needle to human body.
3, self-locking disposable transfusion device of the present invention, is provided with obturating cup in dropping funnel, and obturating cup tips upside down on medicine liquid outlet; When dropping funnel has medicinal liquid, it is interior until spill into medicine liquid outlet that medicinal liquid converges in U-shaped groove, reaches the object of transfusion; When drip in cylinder without during medicinal liquid under gravity obturating cup fall in U-shaped groove, bowl is along in the medicinal liquid inserted in U-shaped groove, and when medicinal liquid liquid level is lower than medicine liquid outlet, medicine liquid outlet no longer includes medicinal liquid output; Meanwhile, the gas barrier inside and outside obturating cup is opened by the medicinal liquid in U-shaped groove, reaches the object of confining gas passage, can work as transfusion when completing or to change dressings bottle, prevent air from entering into blood samples of patients; Use safer convenience.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the composition structural representation of the disposable transfusion device of prior art;
Fig. 2 is the composition structural representation of the disposable transfusion device of the preferred embodiment of the present invention;
Fig. 3 is the composition structural representation of the self-locking device of the preferred embodiment of the present invention;
Fig. 4 is the composition structural representation of the transfusion needle of the preferred embodiment of the present invention;
Fig. 5 is the composition structural representation of the dropping funnel of the preferred embodiment of the present invention.
Marginal data:
1, feed liquor base; 2, dropping funnel; 3, tube for transfusion; 4, flow regulator; 5, filter; 6, transfusion needle; 601, syringe needle; 602, hands handle; 7, needle stand; 701, pin hole; 8, passage; 9, fin seat; 10, fin is kept off; 11, elastic fin; 12, obturating cup; 13, dropping funnel cylinder; 14, seal receptacle; 141, breach; 15, U-loop groove; 16, medicine liquid outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Shown in Fig. 2, Fig. 3, self-locking disposable transfusion device of the present invention, comprise tube for transfusion 3, being equiped with successively from front end of tube for transfusion 3 wears plug pin (not shown), for converging the dropping funnel 2 of medicinal liquid, the flow regulator 4 for regulating flow velocity and the filter 5 for impurity in filtering liquid medicine for what insert infusion bottle, and being provided with transfusion needle 6 at end, transfusion device also comprises one for unidirectional insertion and the syringe needle 601 of coated transfusion needle 6 self-locking device of the handle 602 of fixing transfusion needle 6.
In the present embodiment, as shown in Figure 4, transfusion needle 6 comprises syringe needle 601 and handle 602.As shown in Figure 3, self-locking device comprises for inserting and the needle stand 7 of the syringe needle 601 of coated transfusion needle 6 and the passage 8 that moves to needle stand 7 for transfusion needle 6; Passage 8 is laid by the fin seat 9 be located on flow regulator 4 and gear fin 10 gap formed and is formed, and fin seat 9 and gear fin 10 are all arranged in the Way in of needle stand 7.Passage 8 is provided with can unidirectionally to needle stand 7 direction be pushed open and the elastic fin 11 automatically rebounded; Elastic fin 11 initiating terminal is located on fin seat 9, and end stretches out to needle stand 7 direction and extends between gear fin 10 and needle stand 7.Spacing between elastic fin 11 and needle stand 7 is not less than the width of the handle 602 of a transfusion needle 6.
In the present embodiment, as shown in Figure 3, needle stand 7 offers the pin hole 701 that the syringe needle 601 for transfusion needle 6 inserts, structure is simple, and materials are few.Passage 8 and pin hole 701 are on the same axis.
The present embodiment use principle: after having infused, the syringe needle 601 of the transfusion device used is inserted in pin hole 701, firmly make the handle 602 of transfusion needle 6 by the passage 8 between fin seat 9 and gear fin 10, and elastic fin 11 is pushed open handle 602 is pushed aside and by elastic fin 11, then elastic fin 11 rebounds reinstatement automatically; When wanting to make syringe needle 601 toward rollback, handle 602 is blocked by elastic fin 11, and the end of elastic fin 11 is kept off fin 10 and blocks, thus syringe needle 601 is locked in the pin hole 701 of needle stand 7 all the time, avoids the unexpected injury of syringe needle 601 pairs of human bodies.
The self-locking transfusion device of the present embodiment also comprises the dropping funnel 2 of band automatic liquid-stopping function.As shown in Figure 5, be provided with obturating cup 12 in dropping funnel 2, the rim of a bowl of obturating cup 12 is arranged towards the medicine liquid outlet 16 of dropping funnel 2; When in dropping funnel 2 without medicinal liquid time, medicine liquid outlet 16 is higher than the rim of a bowl edge of obturating cup 12.The body of dropping funnel 2 is made up of dropping funnel cylinder 13 and the seal receptacle 14 being set in dropping funnel cylinder 13 lower end, and medicine liquid outlet 16 is located at the axle center place of seal receptacle 14, and offers U-loop groove 15 in the outside in axle center in seal receptacle 14, obturating cup 12 tips upside down in U-loop groove 15.
As shown in Figure 2, the top of dropping funnel 2 is provided with feed tube (not shown in Fig. 2) and feed liquor base 1.During transfusion, when dropping funnel 2 has medicinal liquid, it is interior until spill into medicine liquid outlet 16 that medicinal liquid converges in U-shaped groove, reaches the object of transfusion; When drip in cylinder without during medicinal liquid under gravity obturating cup 12 fall in U-shaped groove, bowl is along in the medicinal liquid inserted in U-shaped groove, and when medicinal liquid liquid level is lower than medicine liquid outlet 16, medicine liquid outlet 16 no longer includes medicinal liquid output; Meanwhile, the gas barrier inside and outside obturating cup 12 is opened by the medicinal liquid in U-shaped groove, reaches the object of confining gas passage, as shown in Figure 5, separates by obturating cup 12 external space in the obturating cup 12 shown in A shown in space and B.Can, when transfusion completes or to change dressings bottle, prevent air from entering into blood samples of patients; Use safer convenience.
In the present embodiment, as shown in Figure 5, the bowl inner height of obturating cup 12 is greater than the diameter of the body of dropping funnel 2, and the external diameter of the rim of a bowl of obturating cup 12 is less than the internal diameter of the body of dropping funnel 2.Such physical dimension ensures that obturating cup 12 can move freely and not overturn along the axis of dropping funnel cylinder 13, and has enough spaces between dropping funnel cylinder 13 and obturating cup 12 and allow liquid flow through.
In the present embodiment, the rim of a bowl edge of obturating cup 12 is circumferentially provided with multiple upwards recessed breach 141; Ensure obturating cup 12 when dropping in seal receptacle 14 groove medicinal liquid still by.As shown in Figure 5, also projection or breach 141 can be set in the bottom of the U-shaped groove of seal receptacle 14, also can reach equal effect.After arranging like this, sealing bowl also can be fixedly mounted in seal receptacle groove.
In the present embodiment, dropping funnel cylinder 13 inserts in seal receptacle 14 and glue adhering and sealing can be adopted also can to adopt the method welded seals such as ultrasound wave.Obturating cup 12 adopts the making such as more soft non-toxic plastic, and has certain weight, allowed when not only having ensured medicinal liquid when hanging uses medicinal liquid smoothly by but also ensure fall in seal receptacle 14 without obturating cup during medicinal liquid 12 to seal.During actual production, obturating cup 12 is not limited to adopt non-toxic plastic to make, as long as nontoxic and have the material of certain weight.
To sum up, the self-locking disposable transfusion device of the present embodiment, have employed the dropping funnel 2 of self-locking device and band automatic liquid-stopping function simultaneously, simply, namely structure avoids the unexpected injury of syringe needle 601 pairs of human bodies, stopped again reusing of disposable transfusion device, what prevent disposable transfusion device reuses the pathogen transmission and cross infection that cause; And after use the present embodiment, even if patient falls asleep or family members or nurse are absent from the scene, also there will not be transfusion to terminate rear air enters in patient's vein or the intravenous blood of string person enters in infusion channel, potential safety hazard can not be left, alleviate patient, the worry of family members and nurse and pressure, safety and reliability.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a self-locking disposable transfusion device, comprise tube for transfusion (3), described tube for transfusion (3) is equiped with successively from front end wears plug pin for what insert infusion bottle, for converging the dropping funnel (2) of medicinal liquid, flow regulator (4) for regulating flow velocity and the filter (5) for impurity in filtering liquid medicine, and be provided with transfusion needle (6) at end, it is characterized in that, described transfusion device also comprises one for unidirectional insertion and the syringe needle (601) of coated described transfusion needle (6), and the self-locking device of the handle (602) of fixing described transfusion needle (6), described self-locking device comprises for inserting and the needle stand (7) of the syringe needle (601) of coated described transfusion needle (6) and can unidirectionally to described needle stand (7) direction pushing open and the elastic fin (11) automatically rebounded, spacing between described elastic fin (11) and described needle stand (7) is not less than the width of the handle (602) of a described transfusion needle (6), described self-locking device also comprises the passage (8) moved to described needle stand (7) for described transfusion needle (6), described elastic fin (11) is located on described passage (8), described passage (8) is laid by the fin seat (9) be located on described flow regulator (4) and gear fin (10) gap formed and is formed, and described fin seat (9) and described gear fin (10) are all arranged in the Way in of described needle stand (7), described elastic fin (11) initiating terminal is located on described fin seat (9), and end stretches out to described needle stand (7) direction and extends between described gear fin (10) and described needle stand (7).
2. self-locking disposable transfusion device according to claim 1, it is characterized in that, described needle stand (7) offers the pin hole (701) supplying the syringe needle (601) of described transfusion needle (6) to insert, described passage (8) and described pin hole (701) are on the same axis.
3. the self-locking disposable transfusion device according to any one of claim 1 ~ 2, it is characterized in that, be provided with obturating cup (12) in described dropping funnel (2), the rim of a bowl of described obturating cup (12) is arranged towards the medicine liquid outlet (16) of described dropping funnel (2); When in described dropping funnel (2) without medicinal liquid time, described medicine liquid outlet (16) is higher than the rim of a bowl edge of described obturating cup (12).
4. self-locking disposable transfusion device according to claim 3, it is characterized in that, the body of described dropping funnel (2) is made up of dropping funnel cylinder (13) and the seal receptacle (14) that is set in described dropping funnel cylinder (13) lower end, described medicine liquid outlet (16) is located at the axle center place of described seal receptacle (14), offer U-loop groove (15) in the outside in axle center in described seal receptacle (14), described obturating cup (12) tips upside down in described U-loop groove (15).
5. self-locking disposable transfusion device according to claim 4, it is characterized in that, the bowl inner height of described obturating cup (12) is greater than the diameter of the body of described dropping funnel (2), and the external diameter of the rim of a bowl of described obturating cup (12) is less than the internal diameter of the body of described dropping funnel (2).
6. self-locking disposable transfusion device according to claim 5, is characterized in that, the rim of a bowl edge of described obturating cup (12) is circumferentially provided with multiple upwards recessed breach (141).
7. self-locking disposable transfusion device according to claim 6, is characterized in that, described obturating cup (12) adopts soft non-toxic plastic to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251654.2A CN102716535B (en) | 2012-07-19 | 2012-07-19 | Self-locking disposable infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251654.2A CN102716535B (en) | 2012-07-19 | 2012-07-19 | Self-locking disposable infusion apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN102716535A CN102716535A (en) | 2012-10-10 |
| CN102716535B true CN102716535B (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210251654.2A Active CN102716535B (en) | 2012-07-19 | 2012-07-19 | Self-locking disposable infusion apparatus |
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| Country | Link |
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| CN (1) | CN102716535B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327419B (en) * | 2015-06-17 | 2018-12-21 | 洪铭婉 | It is a kind of suitable for intravenous infusion needle and the needle head structure of vein blood taking needle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2844147A (en) * | 1955-04-25 | 1958-07-22 | Cutter Lab | Segregation chamber for transfusion sets |
| US5102400A (en) * | 1985-11-20 | 1992-04-07 | Saul Leibinsohn | Drip chamber for infusion apparatus |
| CN2526012Y (en) * | 2001-12-13 | 2002-12-18 | 钟健维 | Infusion flow controller capable of containing syringe needle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040153039A1 (en) * | 2003-01-30 | 2004-08-05 | Wang Hsien Tsung | Disposable butterfly needle sheath |
| US7108678B2 (en) * | 2003-12-31 | 2006-09-19 | Biotop Holding Co., Ltd. | Captive cover for a hypodermic needle of an intravenous (IV) tube assembly |
-
2012
- 2012-07-19 CN CN201210251654.2A patent/CN102716535B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2844147A (en) * | 1955-04-25 | 1958-07-22 | Cutter Lab | Segregation chamber for transfusion sets |
| US5102400A (en) * | 1985-11-20 | 1992-04-07 | Saul Leibinsohn | Drip chamber for infusion apparatus |
| CN2526012Y (en) * | 2001-12-13 | 2002-12-18 | 钟健维 | Infusion flow controller capable of containing syringe needle |
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| Publication number | Publication date |
|---|---|
| CN102716535A (en) | 2012-10-10 |
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Inventor after: Zhong Bo Inventor after: Zhong Jingyou Inventor before: Zhong Bo |
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