CN203885943U - Indwelling needle of safety pump - Google Patents

Indwelling needle of safety pump Download PDF

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Publication number
CN203885943U
CN203885943U CN201420249398.8U CN201420249398U CN203885943U CN 203885943 U CN203885943 U CN 203885943U CN 201420249398 U CN201420249398 U CN 201420249398U CN 203885943 U CN203885943 U CN 203885943U
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CN
China
Prior art keywords
tube
remaining needle
liquid
transfusion
tank 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 - Lifetime
Application number
CN201420249398.8U
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Chinese (zh)
Inventor
毛亚凌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jinta Medical Apparatus Co Ltd
Original Assignee
Shanghai Jinta Medical Apparatus Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Jinta Medical Apparatus Co Ltd filed Critical Shanghai Jinta Medical Apparatus Co Ltd
Priority to CN201420249398.8U priority Critical patent/CN203885943U/en
Application granted granted Critical
Publication of CN203885943U publication Critical patent/CN203885943U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an indwelling needle of a safety pump. The indwelling needle comprises an infusion tube and an indwelling needle body. The indwelling needle body is connected with one end of the infusion tube. The indwelling needle of the safety pump further comprises a liquid reservoir comprising a shell, a liquid storage body, a unidirectional three-way valve body, a medicine liquid filter and a cover body. The liquid storage body, the unidirectional three-way valve body and the medicine liquid filter are arranged in the shell, three passages of the unidirectional three-way valve are respectively connected with the liquid storage body, the medicine liquid filter and the cover body, the other end of the medicine liquid filter is connected with a medicine liquid tube, and the medicine liquid tube is communicated with the infusion tube through a tee joint. Panic of a patient due to backflow of vein blood can be avoided, the problem of blockage of the indwelling needle due to thrombus after backflow of the vein blood is avoided and consequently, secondary dangers caused by thrombus are overcome.

Description

Safety pump remaining needle
Technical field
This utility model relates to a kind of safety pump remaining needle.
Background technology
Transfusion device is conventional medical apparatus and instruments, and it comprises tube for transfusion and transfusion needle.One end of tube for transfusion connects medicine, and the other end connects transfusion needle.Flow through tube for transfusion and transfusion needle of medicine enters human vas.After stopping infusion, for convenience of transfusion next time, sometimes need transfusion needle to keep somewhere, this transfusion needle is referred to as remaining needle conventionally.The transfusion device using at present, when transfusion needle is kept somewhere, due to the pressure of blood of human body self, there will be blood backflow phenomenon, and venous backflow is in remaining needle and pipeline.Like this, can cause patient's fear, and cause certain harm to human body, and the generation thrombosis after blood backflow stops up transfusion needle, can bring the secondary of bringing because of thrombosis obstruction dangerous.
Utility model content
The technical problems to be solved in the utility model is the defect that has blood backflow phenomenon when existing transfusion device is kept somewhere transfusion needle in order to overcome, and a kind of safety pump remaining needle is provided.
This utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of safety pump remaining needle, it comprises a tube for transfusion and a remaining needle, described remaining needle is connected in one end of described tube for transfusion, its feature is, described safety pump remaining needle also comprises and stays liquid device, the described liquid device that stays comprises a housing, one tank body, one unidirectional triple channel valve body, one liquid medicine filter and a lid, described tank body, described unidirectional triple channel valve body and described liquid medicine filter are all positioned at described housing, three passages of described unidirectional triple channel valve body connect respectively described tank body, described liquid medicine filter and described lid, the other end of described liquid medicine filter connects a drug liquid tube, described drug liquid tube is communicated with described tube for transfusion by a tee T.
Preferably, described drug liquid tube is connected with described tee T by a screwed union.
Preferably, the passage that described unidirectional triple channel valve body is connected with described lid protrudes from described housing, and described lid is fixed in described housing by rope form parts.
Preferably, the internal diameter of described drug liquid tube is 0.001~0.2 millimeter.
Preferably, described tank body is hollow cryptomere, and the material of described tank body is ductility material.
Preferably, described ductility material is latex or silica gel.
Positive progressive effect of the present utility model is: when transfusion finishes, device of the present utility model produces pressure by tank body characteristic performance retraction, micro-ly quantitatively by remaining needle, enter human body by liquid is continual, prevent that the backflow of blood in vein blood vessel from returning remaining needle and tube for transfusion.Like this, the fear that can avoid venous backflow to bring to patient.In addition, can also avoid causing because of thrombosis after venous backflow the problem of transfusion needle obstruction, overcome thrombosis and stop up the secondary danger bringing.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model preferred embodiment.
Fig. 2 is the structural representation of tank body.
Fig. 3 is the structural representation of unidirectional triple channel valve body.
The specific embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer this utility model that intactly illustrates.
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of safety pump remaining needle, it comprises tube for transfusion 1 and remaining needle 2, remaining needle 2 is connected in one end of tube for transfusion 1, safety pump remaining needle also comprises and stays liquid device 3, stay liquid device 3 to comprise housing 31, tank body 32, unidirectional triple channel valve body 35, liquid medicine filter 34 and lid 36, tank body 32, unidirectional triple channel valve body 35 and liquid medicine filter 34 are all positioned at housing 31, three passages of unidirectional triple channel valve body 35 connect respectively tank body 32, liquid medicine filter 34 and lid 36, the other end of liquid medicine filter 34 connects drug liquid tube 33, drug liquid tube 33 is communicated with tube for transfusion 1 by tee T 4.
Liquid medicine filter, unidirectional triple channel valve body and tank body are parts conventional in existing infusion set, at this, just repeat no more.Unidirectional triple channel valve body is provided with three passages, what be connected with lid is liquid feeding passage, liquid feeding passage is half-duplex channel, all the other two passages are intercommunication state when liquid feeding not, one of them passage connects tank body, is medicinal liquid access way, and another one passage connects liquid medicine filter, the other end of liquid medicine filter connects drug liquid tube, and drug liquid tube is connected with tube for transfusion.Drug liquid tube adopts micro-quantitative pipeline, guarantees the output speed of medicinal liquid.The automatic continuous contraction of tank body is mainly according to tank body material behavior, and material carries out Memorability modulation by physical process, makes the generation retraction force that it can safety and stability after exuberant, by liquid continuous output in body.
Before transfusion finishes soon, open lid, normal saline, by unidirectional triple channel valve body, is injected in tank body.Work as infusion-completed, when remaining needle need to be kept somewhere, under the automatic continuous contraction of tank body, normal saline enters tube for transfusion by unidirectional triple channel valve body, liquid medicine filter and the uninterrupted continuous micro of drug liquid tube successively, and the liquid in tube for transfusion enters human vas by remaining needle.Therefore,, when transfusion finishes, device of the present utility model can be given the certain pressure of blood vessel, prevents that the backflow of blood in vein blood vessel from returning remaining needle and tube for transfusion.Like this, the fear that can avoid venous backflow to bring to patient.In addition, can also avoid causing because of thrombosis after venous backflow the problem of remaining needle obstruction, overcome thrombosis and stop up the secondary danger bringing.
On said structure basis, drug liquid tube 33 can also be connected with tee T 4 by screwed union 37.Screwed union is also existing common parts.User, by screwed union, can will stay liquid device and tube for transfusion to link together easily.
In addition, the passage that unidirectional triple channel valve body 35 is connected with lid 36 protrudes from housing 31, and lid 36 can be fixed in housing 31 by rope form parts.Like this, when lid is turned on, lid can not fall, thereby avoids causing environmental pollution.
The internal diameter of drug liquid tube 33 can be 0.001~0.2 millimeter.Like this, drug liquid tube is micro-quantitative pipeline, can control the rate of outflow of medicinal liquid, makes the micro-quantitative outflow of medicinal liquid.
Tank body 32 is hollow cryptomere, and the material of tank body 32 is ductility material, preferably, is latex or silica gel.Such tank body has preferably contractile function, constantly feed flow automatically.
Although more than described the specific embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection domain of the present utility model.

Claims (6)

1. a safety pump remaining needle, it comprises a tube for transfusion and a remaining needle, described remaining needle is connected in one end of described tube for transfusion, it is characterized in that, described safety pump remaining needle also comprises and stays liquid device, the described liquid device that stays comprises a housing, one tank body, one unidirectional triple channel valve body, one liquid medicine filter and a lid, described tank body, described unidirectional triple channel valve body and described liquid medicine filter are all positioned at described housing, three passages of described unidirectional triple channel valve body connect respectively described tank body, described liquid medicine filter and described lid, the other end of described liquid medicine filter connects a drug liquid tube, described drug liquid tube is communicated with described tube for transfusion by a tee T.
2. safety pump remaining needle as claimed in claim 1, is characterized in that, described drug liquid tube is connected with described tee T by a screwed union.
3. safety pump remaining needle as claimed in claim 1, is characterized in that, the passage that described unidirectional triple channel valve body is connected with described lid protrudes from described housing, and described lid is fixed in described housing by rope form parts.
4. safety pump remaining needle as claimed in claim 1, is characterized in that, the internal diameter of described drug liquid tube is 0.001~0.2 millimeter.
5. safety pump remaining needle as claimed in claim 1, is characterized in that, described tank body is hollow cryptomere, and the material of described tank body is ductility material.
6. safety pump remaining needle as claimed in claim 5, is characterized in that, described ductility material is latex or silica gel.
CN201420249398.8U 2014-05-15 2014-05-15 Indwelling needle of safety pump Expired - Lifetime CN203885943U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420249398.8U CN203885943U (en) 2014-05-15 2014-05-15 Indwelling needle of safety pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420249398.8U CN203885943U (en) 2014-05-15 2014-05-15 Indwelling needle of safety pump

Publications (1)

Publication Number Publication Date
CN203885943U true CN203885943U (en) 2014-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420249398.8U Expired - Lifetime CN203885943U (en) 2014-05-15 2014-05-15 Indwelling needle of safety pump

Country Status (1)

Country Link
CN (1) CN203885943U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015172423A1 (en) * 2014-05-15 2015-11-19 上海金塔医用器材有限公司 Safe pump indwelling needle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015172423A1 (en) * 2014-05-15 2015-11-19 上海金塔医用器材有限公司 Safe pump indwelling needle

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CX01 Expiry of patent term
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Granted publication date: 20141022