CN101564565B - Guide tube for inserting infusion needle - Google Patents
Guide tube for inserting infusion needle Download PDFInfo
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- CN101564565B CN101564565B CN2009100594935A CN200910059493A CN101564565B CN 101564565 B CN101564565 B CN 101564565B CN 2009100594935 A CN2009100594935 A CN 2009100594935A CN 200910059493 A CN200910059493 A CN 200910059493A CN 101564565 B CN101564565 B CN 101564565B
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- transfusion needle
- section
- conduit
- inserts
- infusion
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Abstract
The invention relates to a guide tube for inserting an infusion needle, which pertains to a buccal tube for sealing a plastic infusion container or one part of a sealing cover, comprising liquid flow guiding segment with one end thereof connected with an infusion needle inserting segment of the sealing cover, and other end thereof communicated with the infusion container; the inner border of the infusion needle inserting segment and the liquid flow guiding segment is provided with a sealed membrane. The guide tube is characterized in that: the diameter d of the section of the inner border of the infusion needle inserting segment and the liquid flow guiding segment is smaller than the diameter D of the section of an opening of the infusion needle inserting segment; and the conical angle of a circular inner cavity of the infusion needle inserting segment is a, wherein a/2 is between 0.25 and 1.75 degrees. The guide tube has the advantages that the shape of the inner cavity of the infusion needle inserting segment of the guide tube is designed into a structure that can be closely jointed with the partial shape of an infusion needle main pole, thus being capable of preventing liquid leakage and needle slipping during an infusion process.
Description
Technical field
The invention belongs to medical infusion packing accessory technical field, particularly relate to hollow structure in the conduit that inserts for transfusion needle.
Background technology
Plastic container for infusion comprises soft bag of plastics and plastic bottle, and the interior hollow structure of conduit that inserts for transfusion needle that is provided with on it should partly fit tightly with the transfusion needle mobile jib that inserts, and prevents that leakage and transfusion needle from skidding off in the air in conduit, promptly sliding pin.For preventing leakage and sliding pin, must use to have certain elastic material infusion needle guide tube, behind the sky, the elastic contractile force of conduit closely wraps up transfusion needle in transfusion needle inserts conduit.Now people have only considered with there being certain elastic material to reach tight parcel transfusion needle in case the technology of leak-stopping liquid and sliding pin, and do not consider to add that suitable interior hollow structure matches to make prevents leakage and sliding pin better effects if.
Summary of the invention
After the purpose of this invention is to provide a kind of transfusion needle insertion infusion needle guide tube,, be implemented in the infusion needle guide tube that can prevent leakage in the infusion process and slide pin with hollow structure design in the conduit.
Design of the present invention is: with the empty one section interior blank pipe wall that is made into certain taper that partly contacts with the transfusion needle mobile jib in the infusion needle guide tube, the tapering of interior blank pipe wall matches with the tapering of transfusion needle mobile jib part, reach infusion needle guide tube and can fit tightly, prevent the purpose of leakage and sliding pin transfusion needle.
Structure of the present invention is:
Conduit for the transfusion needle insertion, comprise that an end is used to connect the transfusion needle insertion section of seal cover, be used for the liquid guide flow section that communicates with infusion vessel with the other end, transfusion needle inserts section and is provided with seal dissepiment with the interior empty intersection of liquid guide flow section, it is characterized in that: transfusion needle inserts the cross-sectional diameter D of the intersection cross-sectional diameter d of section and liquid guide flow section less than transfusion needle insertion section opening part, the interior empty tapering of truncated cone-shaped that transfusion needle inserts section is a, and its a/2 is 0.25 °-1.75 °.
The transfusion needle of infusion needle guide tube inserts the interior sky of section and is used to hold transfusion needle mobile jib part, and sky is used to the transfusion needle head end to import medicinal liquid in the liquid guide flow section.For the benefit of import medicinal liquid, sky is greater than the transfusion needle head end in the liquid guide flow section, and remaining space helps importing medicinal liquid.As long as can import medicinal liquid, in the liquid guide flow section sky be truncated cone-shaped or cylindrical all can, even other shape also can.For adapting to the tapering of different transfusion needles, transfusion needle inserts Duan Zeke has following several scope to select.
First kind preferred: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section is a, and its a/2 is 0.25 °-0.50 °.
Second kind preferred: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section is a, and its a/2 is 0.50 °-0.75 °.
The third is preferred: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section is a, and its a/2 is 0.75 °-1.00 °.
The 4th kind preferred: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section is a, and its a/2 is 1.00 °-1.25 °.
The 5th kind preferred: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section is a, and its a/2 is 1.25 °-1.50 °.
The 6th kind preferred: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section is a, and its a/2 is 1.50 °-1.75 °.
Transfusion needle inserts the seal dissepiment concavity of empty intersection in section and the liquid guide flow section, and concave panel inserts section to transfusion needle, and seal dissepiment also can be the plane.
Advantage of the present invention: will become the structure that to fit with transfusion needle mobile jib partial shape for the interior empty shaped design of the infusion needle guide tube that transfusion needle inserts, and can prevent leakage and sliding pin in the infusion process.Using structural design of the present invention, make the structure matching of interior hollow structure of infusion needle guide tube and transfusion needle, thereby make their combination tightr, also is a kind of very important technological means that prevents leakage and sliding pin.
Description of drawings
Fig. 1 is a cross-sectional view of the present invention;
1 is conduit, the 2nd among the figure, and transfusion needle inserts section, the 3rd, liquid guide flow section, the 4th, seal dissepiment.
The specific embodiment
Embodiment 1:
With the conduit of injection molded of modified polypropylene material for transfusion needle insertion on the plastic container for infusion, conduit 1 comprises that an end is used to connect the transfusion needle insertion section 2 of seal cover, the liquid guide flow section 3 that communicates with plastic container for infusion with the other end, transfusion needle inserts section 2 and is provided with seal dissepiment 4 with liquid guide flow section 3 interior empty intersections, seal dissepiment 4 concavities, concave panel inserts section 2 to transfusion needle.Transfusion needle inserts the intersection cross-sectional diameter d=5.3mm of section 2 and liquid guide flow section 3, and transfusion needle inserts the cross-sectional diameter D=5.5mm of section 2 opening parts, and transfusion needle insertion section 2 openings are L=13.5mm to the length of seal dissepiment 4.The interior empty tapering of truncated cone-shaped that transfusion needle inserts section 2 is a, and its a/2 is 0.42 °.
The transfusion needle of the conduit that above-mentioned transfusion needle inserts inserts section 2 interior hollow structure parametric representations:
D＝5.5mm，d＝5.3mm，L＝13.5mm，a/2＝0.42°；
Present embodiment is useful for the transfusion needle that tapering is 0.5-1.0.
Embodiment 2:
The transfusion needle of the conduit 1 that transfusion needle inserts inserts section 2 structures and is same as embodiment 1 substantially, and seal dissepiment 4 is the plane, and the hollow structure parametric representation is in the transfusion needle insertion section 2 of the conduit that transfusion needle inserts:
D＝5.5mm，d＝5.2mm，L＝13.5mm，a/2＝0.64°；
It is 1.0 °-1.5 ° transfusion needle that present embodiment is useful for tapering.
Embodiment 3:
The transfusion needle of the conduit 1 that transfusion needle inserts inserts section 2 structures and is same as embodiment 1, and the hollow structure parametric representation is in the transfusion needle insertion section 2 of the conduit that transfusion needle inserts:
D＝5.5mm，d＝5.1mm，L＝13.5mm，a/2＝0.85°；
It is 1.5 °-2.0 ° transfusion needle that present embodiment is useful for tapering.
Embodiment 4:
The transfusion needle of the conduit 1 that transfusion needle inserts inserts section 2 structures and is same as embodiment 1, and the hollow structure parametric representation is in the transfusion needle insertion section 2 of the conduit that transfusion needle inserts:
D＝5.5mm，d＝5.1mm，L＝10mm，a/2＝1.15°；
It is 2.0 °-2.5 ° transfusion needle that present embodiment is useful for tapering.
Embodiment 5:
The transfusion needle of the conduit 1 that transfusion needle inserts inserts section 2 structures and is same as embodiment 1, and the hollow structure parametric representation is in the transfusion needle insertion section 2 of the conduit that transfusion needle inserts:
D＝5.6mm，d＝5.0mm，L＝12.0mm，a/2＝1.43°；
It is 2.5 °-3.0 ° transfusion needle that present embodiment is useful for tapering.
Embodiment 6:
The transfusion needle of the conduit 1 that transfusion needle inserts inserts section 2 structures and is same as embodiment 1, and the hollow structure parametric representation is in the transfusion needle insertion section 2 of the conduit that transfusion needle inserts:
D＝5.6mm，d＝5.0mm，L＝10.5mm，a/2＝1.64°；
It is 3.0 °-3.5 ° transfusion needle that present embodiment is useful for tapering.
Claims (8)
1. supply the conduit of transfusion needle insertion, comprise that an end is used to connect the transfusion needle insertion section (2) of seal cover, be used for the liquid guide flow section (3) that communicates with infusion vessel with the other end, transfusion needle inserts section (2) and is provided with seal dissepiment (4) with the interior empty intersection of liquid guide flow section (3), it is characterized in that: transfusion needle inserts the cross-sectional diameter D of the intersection cross-sectional diameter d of section (2) and liquid guide flow section (3) less than transfusion needle insertion section (2) opening part, the interior empty tapering of truncated cone-shaped that transfusion needle inserts section (2) is a, and its a/2 is 0.25 °-1.75 °.
2. the conduit for the transfusion needle insertion according to claim 1 is characterized in that: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section (2) is a, and its a/2 is 0.25 °-0.50 °
3. the conduit for the transfusion needle insertion according to claim 1 is characterized in that: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section (2) is a, and its a/2 is 0.50 °-0.75 °.
4. the conduit for the transfusion needle insertion according to claim 1 is characterized in that: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section (2) is a, and its a/2 is 0.75 °-1.00 °.
5. the conduit for the transfusion needle insertion according to claim 1 is characterized in that: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section (2) is a, and its a/2 is 1.00 °-1.25 °.
6. the conduit for the transfusion needle insertion according to claim 1 is characterized in that: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section (2) is a, and its a/2 is 1.25 °-1.50 °.
7. the conduit for the transfusion needle insertion according to claim 1 is characterized in that: the interior empty tapering of truncated cone-shaped that transfusion needle inserts section (2) is a, and its a/2 is 1.50 °-1.75 °.
8. the conduit for the transfusion needle insertion according to claim 1 is characterized in that: seal dissepiment (4) concavity, concave panel inserts section (2) to transfusion needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100594935A CN101564565B (en) | 2009-06-03 | 2009-06-03 | Guide tube for inserting infusion needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100594935A CN101564565B (en) | 2009-06-03 | 2009-06-03 | Guide tube for inserting infusion needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101564565A CN101564565A (en) | 2009-10-28 |
| CN101564565B true CN101564565B (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100594935A Active CN101564565B (en) | 2009-06-03 | 2009-06-03 | Guide tube for inserting infusion needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101564565B (en) |
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2009
- 2009-06-03 CN CN2009100594935A patent/CN101564565B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101564565A (en) | 2009-10-28 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kunming Nanjiang Pharmaceutical Co., Ltd. Assignor: Sichuan Kelun Pharmaceutical Co., Ltd. Contract record no.: 2012510000039 Denomination of invention: Guide tube for inserting infusion needle Granted publication date: 20110817 License type: Exclusive License Open date: 20091028 Record date: 20120502 |
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| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Kunming Nanjiang Pharmaceutical Co., Ltd. Assignor: Sichuan Kelun Pharmaceutical Co., Ltd. Contract record no.: 2012510000039 Date of cancellation: 20171122 |
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| EC01 | Cancellation of recordation of patent licensing contract |