CN205460184U - Prevent transfusion needle of blood backflow - Google Patents
Prevent transfusion needle of blood backflow Download PDFInfo
- Publication number
- CN205460184U CN205460184U CN201620115894.3U CN201620115894U CN205460184U CN 205460184 U CN205460184 U CN 205460184U CN 201620115894 U CN201620115894 U CN 201620115894U CN 205460184 U CN205460184 U CN 205460184U
- Authority
- CN
- China
- Prior art keywords
- section
- big footpath
- path section
- blood
- syringe needle
- 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
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a prevent transfusion needle of blood backflow, including syringe needle and connecting seat, the syringe needle install in on the connecting seat, the infusion passageway has been seted up in the connecting seat, the infusion passageway is including big footpath section and path section, syringe needle, big footpath section and path section communicate in proper order, linking department of big footpath section and path section is equipped with and ends contrary diaphragm, path section internal stability is equipped with the mounting panel, end contrary diaphragm with be equipped with elastic element between the mounting panel, set up the through -hole that supplies the liquid medicine to flow through on the mounting panel, the utility model has the advantages of simple structure can prevent effectively that the blood backflow from getting into the infusion hose.
Description
Technical field
This utility model relates to medical auxiliary apparatus, particularly relates to the transfusion needle of a kind of blood-backflow preventing.
Background technology
Existing transfusion device generally include take liquid syringe needle, infusion tube is it possible that formula dropper, for regulating controller and the transfusion needle of transfusion speed, medicinal liquid through transfusion needle inject in the patient.The transfusion device of this structure has simple in construction, feature with low cost, pulls out and abandons, destroys, with anti-cross infection for i.e. whole group after first use.Owing to transfusion device must could continuous infusion higher than in the case of patient vessel's pressure at injecting liquid drug pressure, when amount of liquid medicine is very few or transfusion flexible bag, transfusion bottle position is on the low side time, vascular pressure raises relatively, can make blood in transfusion needle flows back into tube for transfusion, cause the fear of patient and family members, cause the trouble in medical care.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, it is provided that a kind of simple in construction, it is possible to the transfusion needle of effective anti-Hemostatic Oral Liquid backflow.
For solve above-mentioned technical problem, this utility model by the following technical solutions:
A kind of transfusion needle of blood-backflow preventing, including syringe needle and connection seat, described syringe needle is installed on described connection seat, offering infusion channel in described connection seat, described infusion channel includes that big footpath section and path section, described syringe needle, big footpath section and path section are sequentially communicated, the joining place of described big footpath section and path section is provided with non-return diaphragm, it is installed with installing plate in described path section, between described non-return diaphragm and described installing plate, is provided with flexible member, described installing plate offers the through hole flow through for medicinal liquid.
Further improvement as technique scheme:
The joining place of described big footpath section and described path section is provided with conical transition section, in described non-return diaphragm is located at described conical transition section and with conical transition section cone match.
Described path section offers groove away from the end of one end of described big footpath section, and described installing plate is installed in described groove.
A pair pin wing it is installed with on described connection seat.
Compared with prior art, the utility model has the advantage of: the transfusion needle of blood-backflow preventing disclosed in this utility model, big footpath section and path section are set in infusion channel, the joining place of big footpath section and path section is provided with non-return diaphragm, is installed with the installing plate of band through hole, is provided with flexible member between non-return diaphragm and installing plate in path section, during use, medicinal liquid overcomes the elastic force of flexible member after installing plate enters path section, promotes non-return diaphragm to move in the section of big footpath, the most just can enter in human body by infusion；When amount of liquid medicine is very few or transfusion flexible bag, transfusion bottle position is on the low side time, non-return diaphragm back moves under the effect of flexible member, path section is blocked, and blood is i.e. stop motion after syringe needle enters big footpath section, effectively prevent blood and enters in tube for transfusion.
Further, big footpath section is provided with conical transition section near one end of path section, uses cone match, compared with the big footpath section using shoulder hole form and path section, be conducive to improving the sealing effectiveness of non-return diaphragm between non-return diaphragm and conical transition section.
Accompanying drawing explanation
Fig. 1 is the structural representation of the transfusion needle of this utility model blood-backflow preventing.
In figure, each label represents: 1, syringe needle；2, seat is connected；21, big footpath section；22, conical transition section；23, path section；24, groove；25, the pin wing；3, non-return diaphragm；4, installing plate；41, through hole；5, flexible member.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, this utility model is described in further details.
As shown in Figure 1, the transfusion needle of the blood-backflow preventing of the present embodiment, including syringe needle 1 and connection seat 2, syringe needle 1 is installed on connection seat 2, infusion channel is offered in connecting seat 2, infusion channel includes big footpath section 21 and path section 23, syringe needle 1, big footpath section 21 and path section 23 are sequentially communicated, the joining place of big footpath section 21 and path section 23 is provided with non-return diaphragm 3, installing plate 4 it is installed with in path section 23, it is provided with flexible member 5 between non-return diaphragm 3 and installing plate 4, the through hole 41 flow through for medicinal liquid is offered on installing plate 4, this transfusion needle simple in construction, can effectively prevent blood back flow from entering in infusion tube.In the present embodiment, flexible member 5 uses spring, in other embodiments, it is possible to use elastic threads etc..
In the present embodiment, big footpath section 21 is provided with conical transition section 22 with the joining place of path section 23, in non-return diaphragm 3 is located at conical transition section 22 and with conical transition section 22 cone match, being conducive to improving the sealing effectiveness of non-return diaphragm 3, anti-Hemostatic Oral Liquid flows out from the gap between non-return diaphragm 3 and conical transition section 22.
Path section 23 offers groove 24 away from the end of one end of big footpath section 21, and installing plate 4 is installed in groove 24, it is simple to the location and installation of installing plate 4.In the present embodiment, syringe needle 1, big footpath section 21 and path section 23 are sequentially arranged from left to right, and groove 24 is opened in the right-hand member of path section 23, and installing plate 4 end face is with to be connected seat 2 concordant.
In the present embodiment, connect and be installed with a pair pin wing 25 on seat 2, facilitate medical worker to carry out having an acupuncture treatment, pulling out the operations such as pin.
The operation principle of the transfusion needle of blood-backflow preventing of the present utility model:
During normal infusion, medicinal liquid overcomes the elastic force of flexible member 5 after the through hole 41 on installing plate 4 enters path section 23, promotes non-return diaphragm 3 toward motion in big footpath section 21, the most just can enter in human body by infusion；When amount of liquid medicine is very few or transfusion flexible bag, transfusion bottle position is on the low side time, non-return diaphragm 3 back moves under the effect of flexible member 5, in entering conical transition section 22 thus path section 23 is blocked, blood is i.e. stop motion after syringe needle 1 enters big footpath section 21, effectively prevent blood and enters in tube for transfusion.
Although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model.Any those of ordinary skill in the art, in the case of without departing from technical solutions of the utility model scope, technical solutions of the utility model are made many possible variations and modification by the technology contents that all may utilize the disclosure above, or are revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to this utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should fall in the range of technical solutions of the utility model are protected.
Claims (4)
1. the transfusion needle of a blood-backflow preventing, including syringe needle (1) and connection seat (2), described syringe needle (1) is installed on described connection seat (2), it is characterized in that: in described connection seat (2), offer infusion channel, described infusion channel includes big footpath section (21) and path section (23), described syringe needle (1), big footpath section (21) and path section (23) are sequentially communicated, the joining place of described big footpath section (21) and path section (23) is provided with non-return diaphragm (3), it is installed with installing plate (4) in described path section (23), flexible member (5) it is provided with between described non-return diaphragm (3) and described installing plate (4), the through hole (41) flow through for medicinal liquid is offered on described installing plate (4).
The transfusion needle of blood-backflow preventing the most according to claim 1, it is characterized in that: the joining place of described big footpath section (21) and described path section (23) is provided with conical transition section (22), in described non-return diaphragm (3) is located at described conical transition section (22) and with conical transition section (22) cone match.
The transfusion needle of blood-backflow preventing the most according to claim 1 and 2, it is characterised in that: described path section (23) offers groove (24) away from the end of one end of described big footpath section (21), and described installing plate (4) is installed in described groove (24).
The transfusion needle of blood-backflow preventing the most according to claim 1 and 2, it is characterised in that: it is installed with a pair pin wing (25) on described connection seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620115894.3U CN205460184U (en) | 2016-02-05 | 2016-02-05 | Prevent transfusion needle of blood backflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620115894.3U CN205460184U (en) | 2016-02-05 | 2016-02-05 | Prevent transfusion needle of blood backflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205460184U true CN205460184U (en) | 2016-08-17 |
Family
ID=56675080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620115894.3U Expired - Fee Related CN205460184U (en) | 2016-02-05 | 2016-02-05 | Prevent transfusion needle of blood backflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205460184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267446A (en) * | 2016-09-05 | 2017-01-04 | 南通安诺医疗科技有限公司 | Safe medicine injecting pump adapted liquid bag |
-
2016
- 2016-02-05 CN CN201620115894.3U patent/CN205460184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267446A (en) * | 2016-09-05 | 2017-01-04 | 南通安诺医疗科技有限公司 | Safe medicine injecting pump adapted liquid bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2012501742A (en) | Closed male luer device to minimize fluid leakage during connection and disconnection | |
| JPH04246370A (en) | Cardiovascular assembly | |
| US20170319822A1 (en) | Intravenous Catheter Assembly | |
| CN104888310B (en) | Blood return prevention infusion joint | |
| CN104001231A (en) | Safety pump remaining needle | |
| CN205460184U (en) | Prevent transfusion needle of blood backflow | |
| ITMO20070340A1 (en) | CONNECTING DEVICE FOR BIOMEDICAL LINES, PARTICULARLY FOR THE ADMINISTRATION OF PHARMACOLOGICAL SUBSTANCES | |
| CN211410419U (en) | Anti-reflux infusion extension tube | |
| CN205084013U (en) | Infusion bag | |
| US10173003B2 (en) | Syringe flush protection valve and method | |
| CN203556057U (en) | Junction valve capable of preventing blood return | |
| CN201168273Y (en) | Disposable safety infusion device | |
| KR200470517Y1 (en) | Drip chamber of medical injection set | |
| CN203694231U (en) | Needle-free connecting piece type infusion apparatus | |
| KR102501678B1 (en) | Flow regulator for infusion pump to prevent free flow | |
| CN206120857U (en) | Piston booster -type transfer pump | |
| CN207614132U (en) | Preventing gravity fluid infusion structure | |
| CN205252202U (en) | Dedicated transfusion device for chemotherapy | |
| CN211157813U (en) | Take needle of detaining of positive pressure valve | |
| CN107929861A (en) | A kind of nursing Multifunctional transfusion device | |
| CN202982922U (en) | Anti-counterflow positive-pressure needleless four-way joint | |
| CN203724554U (en) | Venous needle | |
| CN215537317U (en) | Special needle of malleation implanted device of dosing | |
| CN202113399U (en) | Disposable safe transfusion device | |
| CN202777259U (en) | Novel infusion set |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170205 |