CN101415453B - Needle-based medical device including needle guide and method for constructing - Google Patents
Needle-based medical device including needle guide and method for constructing Download PDFInfo
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- CN101415453B CN101415453B CN200680036099.4A CN200680036099A CN101415453B CN 101415453 B CN101415453 B CN 101415453B CN 200680036099 A CN200680036099 A CN 200680036099A CN 101415453 B CN101415453 B CN 101415453B
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- needle
- syringe needle
- tube chamber
- treatment device
- medical treatment
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Abstract
A needle-based medical device including a needle guide and a method for constructing the same are disclosed. The needle-based medical device includes a tube having a first lumen; a needle guide which is dimensioned to be inserted into the lumen of the tube, and a needle. The needle is inserted such that an end is positioned in the needle guide. A glue may also be provided to secure the needle guide to the tube. In one embodiment, the tube may be made of extruded plastic.
Description
The cross reference of related application
The application requires the priority of the U.S. Provisional Application No.60/722163 of common pending trial; The applying date of this No.60/722163 is JIUYUE in 2005 30 days, so the document is incorporated herein by reference.
Technical field
Present patent application relates to utilizes the medical treatment device be fixed on the syringe needle on the hub sleeve, and it is including, but not limited to catheter assembly, blood collection device, Xiu Bai (huber) needle assembly, syringe and other medical treatment device based on syringe needle.
Background technology
Comprise the existing medical treatment device of syringe needle by utilizing molded tube, syringe needle and rigidity hub sleeve to form, syringe needle is fixed on this rigid hub and puts.Needle hub can be made by thin extruding pipe or thin molded tube.This device is shown in the U.S. Provisional Patent Application No.60/659213,60/659217,60/659226 and 60/714954, and these documents all are incorporated herein by reference.This assembling has the several problems relevant with using molded tube based on the method for the medical treatment device of syringe needle.A problem is the molded larger cost that is used to form each pipe of device.The Practical manufacturing of this device also is a problem.Molded medical treatment device be used to having molded tube long, thinner parts are very difficult, particularly when the core pin of mould must be supported at its far-end.Particularly, in small gauge needle, the core pin must have minimum diameter, thereby makes that it is extremely fragile, be difficult to supporting and be difficult to centering.In addition, each needle sizes needs the core pin of different size to form syringe needle.Therefore, this area need to overcome one or more defectives described here.
Summary of the invention
Disclosed herein is a kind of comprise needle guide, based on the medical treatment device of syringe needle and a kind of for its method of structure.Medical treatment device based on syringe needle comprises: pipe, and this pipe has the first tube chamber; Needle guide, this needle guide are sized in the tube chamber of insertion tube; And syringe needle.This syringe needle inserts and so that an end is arranged in needle guide.Can also provide colloid, in order to needle guide is fixed on the pipe.In one embodiment, pipe can be made by extrusion plastic.
According to a first aspect of the invention, provide a kind of medical treatment device based on syringe needle, this medical treatment device has the needle hub assembly, and this needle hub assembly comprises: pipe, and this pipe has the first tube chamber; Needle guide, this needle guide is sized to local at least the insertion in the first tube chamber, this needle guide comprises the body of a cylindricality, the second tube chamber, from this body along at least one rib that longitudinally stretches out to direction at a distance, and glue well, described body comprises the outer surface that is in the first radial distance apart from the longitudinal axis of described body, the longitudinal axis of described at least one rib and described body is radially at a distance of the second radial distance, the second radial distance is greater than the first radial distance, wherein, described at least one rib contacts with the inwall of described pipe, defines the first annular space between the first tube chamber of the described outer surface of the described body of cylindricality and described pipe; Syringe needle, it has and is positioned at the second intraluminal near-end; And colloid, be used for near-end with syringe needle and be fixed on the second tube chamber and with needle guide and be fixed on described pipe; Colloid contacts with the first tube chamber with the near-end of the second tube chamber, syringe needle, the described outer surface of body.
According to a second aspect of the invention, provide the method for a kind of structure based on the medical treatment device of syringe needle, the method comprises: syringe needle is provided, and this syringe needle has near-end and far-end; Pipe with first tube chamber is provided; Needle guide is provided; Wherein, needle guide comprises: cylindrical body, and this cylindrical body has the outer surface that is in the first radial distance from the longitudinal axis of body; The second tube chamber and at least one rib that extends longitudinally along the direction to the distant place from body; And wherein, described at least one rib is apart from longitudinal axis one second radial distance of described body, and the second radial distance is greater than the first radial distance; Needle guide is inserted in the first tube chamber, thereby described at least one rib is contacted with the first tube chamber joint and with the inwall of described pipe; The near-end of syringe needle is inserted in the needle guide; Colloid is introduced in the glue well between needle guide and the first tube chamber, thereby colloid is contacted with the first tube chamber with the described outer surface of the near-end of the second tube chamber, syringe needle, described body; And this colloid is solidified.
According to a third aspect of the invention we, provide a kind of for the needle guide based on the medical treatment device of syringe needle, this needle guide comprises: body, the first tube chamber that is used for insertion tube, this body be cylindricality and comprise apart from the outer surface of longitudinal axis first radial distance of described body and be used for fixedlying positioning the second tube chamber of the near-end of syringe needle; And from the far-end of described body along at least two ribs that extend longitudinally to direction at a distance, in described at least two ribs each and the longitudinal axis of described body are radially at a distance of the second radial distance, the second radial distance is greater than the first radial distance, in order to form the first annular space between the described outer surface of the first tube chamber of described pipe and described body.
The invention provides a kind ofly for the needle hub based on the medical treatment device of syringe needle, this needle hub comprises: pipe, and this pipe has the first tube chamber; Needle guide, this needle guide are useful on the outer surface that engages with inner surface and the second tube chamber that is used for the location syringe needle; And colloid, be used for sealing syringe needle, pipe and needle guide.
Description of drawings
By following detailed description and by reference to the accompanying drawings to various aspects of the present invention, will be more readily understood these and other feature of the present invention, in the accompanying drawing:
Fig. 1 has represented the isometric cross-sectional view of the medical treatment device (catheter introducer) of one embodiment of the invention.
Fig. 2 has represented the exploded view of the needle hub of one embodiment of the invention.
Fig. 3 has represented the isometric view of needle guide, shows glue well.
Fig. 4 has represented the isometric cross-sectional view of the needle hub after the assembling.
Fig. 5 has represented the isometric cross-sectional view of the optional embodiment of the needle hub after the assembling.
Fig. 6 has represented the vertical sectional view of device shown in Figure 1, has represented in manufacture process an embodiment near glue well.
Fig. 7 has represented the vertical sectional view of device shown in Figure 1, has represented in manufacture process another embodiment near glue well.
Should be known in that view of the present invention does not need in proportion.Accompanying drawing just schematically illustrates, and does not describe special parameter of the present invention.Accompanying drawing will just represent exemplary embodiments of the present invention, therefore be not limited to scope of the present invention.In the accompanying drawings, same reference numerals represents similar elements.
The specific embodiment
Apparatus and method disclosed herein provide more effective and have made efficiently Innovative method based on the medical treatment device of syringe needle.
Below with reference to Fig. 1, be the form of the catheter introducer 10 that for example has needle shield 12 based on an embodiment of the medical treatment device 10 of syringe needle.This needle shield 12 comprises by concentric extruding pipe 12,14 and 18 parts of making.These concentric tubees comprise needle shield 12, shell 14 and needle hub 18.With compared by the existing apparatus of moulded parts manufacturing, use and to extrude the cost that part greatly reduces this device, but also can use molded tube.Although medical treatment device 10 is expressed as catheter introducer assembly here, but should know, instruction of the present invention can be used for the device based on syringe needle of any type, including, but not limited to catheter introducer, blood collection device, stop uncle's needle assembly and syringe.
Below with reference to Fig. 2, pipe 30, needle guide 20 and syringe needle 16 represent with exploded view.Syringe needle 16 has far-end 26 and near-end 28, and is fixed on the needle guide 20.Needle guide 20 is fixed on the pipe 30, thereby is formed for syringe needle and hub sleeve based on the medical treatment device 10 (Fig. 1) of syringe needle.In the far-end 38 of body 22 insertion tubes 30 of needle guide 20.The near-end 28 of syringe needle 16 inserts in the body 22 of needle guide 20.Pipe 30 for example can be the plastic extruded piece of being made by polypropylene, acrylic acid or other similar material, the first tube chamber 32 that has near-end 36, far-end 38 and extend between near-end 36 and far-end 38.
Below with reference to Fig. 3, this figure provides the more detailed view of needle guide 20.In one embodiment, needle guide 20 comprises body 22, is used for the first tube chamber 32 (Fig. 2) of insertion tube 30 (Fig. 2).Body 22 can comprise the second tube chamber 40, so that the end 28 (Fig. 2) of location syringe needle 16.In one embodiment, body 22 is cylindricality roughly, and also comprises outer surface 42.Body 22 is connected with far-end 38 by at least one rib 46 that stretches out from body 22.In one embodiment, the number of rib can be positioned to and 46 one-tenth about 120 degree of other rib separately for 3, three ribs 46.But should be known in the rib that can use the arbitrary number that surpasses.As described here, empty space 48 is between the rib 46, and in a structure, this space 48 forms the glue well 50 of contiguous this at least one rib 46 and the first tube chamber 32 (Fig. 2), and is included in the near-end 28 of syringe needle 16 and the space between the second tube chamber 40.
Below with reference to Fig. 4, represented the first embodiment of the needle hub after the assembling among the figure, it comprises: the pipe 30 with first tube chamber 32; And needle guide 20, this needle guide 20 is sized at least local the insertion in the first tube chamber 32.Syringe needle 16 has the near-end 28 in the second tube chamber 40, and colloid 56 is arranged to needle guide 20 is fixed on the pipe 30.In the second tube chamber 40 that the near-end 28 of syringe needle 16 inserts in the needle guide 20, the diameter of this second tube chamber is less times greater than the diameter of syringe needle 16.In one embodiment, between the near-end 28 of the second tube chamber 40 and syringe needle 16, provide frictional fit, thereby remain on the basic circumferentially contact between the second tube chamber 40 and the syringe needle 16.
The body 22 of needle guide 20 inserts in the first tube chamber 32, and like this, it is positioned to manage 30 coaxial.Needle guide 20 can comprise flange 44, and this flange 44 is connected with at least one rib 46 at the far-end of needle guide 20, and it is positioned to engage with the outer wall 34 of pipe 30 when body 22 inserts in the first tube chamber 32.Therefore, flange 44 is as mechanical stops, thereby restriction body 22 can insert the degree of depth in the first tube chamber 32.Just less than the diameter of the first tube chamber 32, this provides the machinery between body 22 and the first tube chamber 32 to cooperate to the diameter of rib 46.
When body 22 inserts in the first tube chamber 32, between the outer surface 42 of the inwall of pipe 30 and body 22, form the first annular space 52.This Space Theory is measured as about 0.001-0.005 inch, this so that colloid 56 can when it is deposited in the glue well 50, flow in the first annular space 52 by capillarity.The very tight cooperation of rib 46 is not preferred, manages 30 far-end 38 distortion because this is possible.In one embodiment, the second annular space 54 is formed between the outer surface of near-end 28 of the second tube chamber 40 and syringe needle 16.Annular space 54 is also as the part of glue well 50 and be full of colloid by capillarity in this embodiment; But, the second annular space 54 is unimportant for implementing invention required for protection.
Below with reference to Fig. 5, represented the second embodiment of the needle hub after the assembling among the figure.According to this embodiment, syringe needle 16 can be molded in the needle guide 20 in advance, then inserts in the first tube chamber 32.The inner surface of pipe 20 can comprise depth stop, so that the restriction needle guide is with respect to the axially-movable of pipe.Depth stop can be the pedestal 57 that is positioned on pipe 30 the inner surface.With reference to figure 1, in case assembled needle hub 18, it can be used for device (for example catheter inserter or any similar device based on syringe needle).Needle hub 18 can also be assembled in the process of this device of assembling.
First embodiment of structure based on the method for the medical treatment device of syringe needle also is provided, wherein, assembled this device by following method.Pipe 30 with first tube chamber 32 provides with needle guide 20.Needle guide 20 (for example body 22 of needle guide 20) insert in the first tube chamber 32 until flange 44 against the outer wall 34 of pipe 30, thereby prevent further insertion.Then, the near-end 28 of syringe needle 16 inserts the second tube chamber 40 from the far-end 24 of guiding piece 20.Colloid 56 is introduced in the glue well 50, then flows at the outer surface 42 of the body 22 of guiding piece 20 by capillarity and manages in the first annular space 52 between 30 the inwall.In the embodiment that comprises the second annular space 54, colloid 56 can also flow in the second annular space 54 between the body 22 of syringe needle 16 and guiding piece 20.Colloid 56 is solidified.
Second embodiment of structure based on the method for the medical treatment device of syringe needle also is provided, and wherein, before body 22 inserted in the first tube chamber 32, the near-end 28 of syringe needle 16 inserted the second tube chamber 40 from the far-end 24 of needle guide 20.In this case, the coefficient of friction between syringe needle 16 and guiding piece 20 must be greater than at guiding piece 20 with manage coefficient of friction between 30.In optional embodiment, interference fit or the sawtooth in needle guide 20 can be used for overcoming the insertion force of syringe needle 16 and needle guide 20 is held in place.
Below with reference to Fig. 6, provide in manufacture process the first embodiment near glue well 50 among the figure.According to this embodiment, needle shield 12 can be threaded on the syringe needle 16 from the near-end 28 (blunt nosed end) of syringe needle 16.In this case, can be by the otch 62 in needle shield 12 near glue well 50.Glue nozzle 64 is inserted in the otch 62, and colloid 56 is introduced in the glue well 50.
Below with reference to Fig. 7, provide in manufacture process the second embodiment near glue well 50 among the figure.According to this embodiment, in glue, when the far-end 58 that makes needle shield 12 and needle shield body 60 keeps separating (but still being threaded on the syringe needle 16) near glue well 50.In this case, in the end of the tube chamber 66 of glue nozzle 64 insertion needle shield body 60.Colloid 56 is introduced in the glue well 50, and then, the far-end of needle shield 12 snaps in bonding or otherwise be installed on the needle shield body 12.
The above stated specification of various aspects of the present invention is for illustrational purpose.It is not be used to limiting the invention to described precise forms, obviously, multiple variation and change can being arranged.These variations that those skilled in the art can know and change will be included in the scope of the invention of being determined by attached claim.
Claims (36)
1. medical treatment device based on syringe needle, this medical treatment device has the needle hub assembly, and this needle hub assembly comprises:
Pipe, this pipe has the first tube chamber;
Needle guide, this needle guide is sized to local at least the insertion in the first tube chamber, this needle guide comprises the body of a cylindricality, the second tube chamber, from this body along at least one rib that longitudinally stretches out to direction at a distance, and glue well, described body comprises apart from the outer surface of longitudinal axis first radial distance of described body, the longitudinal axis of described at least one rib and described body is radially at a distance of the second radial distance, the second radial distance is greater than the first radial distance, wherein, described at least one rib contacts with the inwall of described pipe, defines the first annular space between the first tube chamber of the described outer surface of the described body of cylindricality and described pipe;
Syringe needle, it has and is positioned at the second intraluminal near-end; And
Colloid is used for near-end with syringe needle and is fixed on the second tube chamber and with needle guide and is fixed on described pipe; Colloid contacts with the first tube chamber with the near-end of the second tube chamber, syringe needle, the described outer surface of body.
2. the medical treatment device based on syringe needle according to claim 1, wherein: glue well is included in the second annular space between the near-end of needle guide and syringe needle.
3. the medical treatment device based on syringe needle according to claim 1, wherein: colloid flows into the first annular space.
4. the medical treatment device based on syringe needle according to claim 1, wherein: glue well is positioned near this at least one rib and substantially is positioned at the first tube chamber.
5. the medical treatment device based on syringe needle according to claim 1, also comprise: in the near-end of syringe needle and the frictional fit between the second tube chamber, wherein, glue well is included in the space between proximal needle and the second tube chamber.
6. the medical treatment device based on syringe needle according to claim 1 also comprises: the machinery cooperation between the first tube chamber and needle guide.
7. the medical treatment device based on syringe needle according to claim 1 also comprises: the frictional fit between proximal needle and the second tube chamber.
8. the medical treatment device based on syringe needle according to claim 1, wherein: comprise sawtooth on the needle guide.
9. the medical treatment device based on syringe needle according to claim 1, wherein, the second tube chamber circumferentially contacts substantially with proximal needle.
10. the medical treatment device based on syringe needle according to claim 1, wherein: syringe needle is molded on the needle guide.
11. the medical treatment device based on syringe needle according to claim 1 also comprises: depth stop is used for the restriction needle guide with respect to the axially-movable of described pipe.
12. the medical treatment device based on syringe needle according to claim 11, wherein: depth stop comprises one of following: at the flange on the needle guide or the pedestal in described pipe.
13. the medical treatment device based on syringe needle according to claim 11, wherein: depth stop is the flange on needle guide, and at least one rib of this flange and this is connected.
14. the medical treatment device based on syringe needle according to claim 1 also comprises: the gas-tight seal between needle guide and described pipe.
15. the medical treatment device based on syringe needle according to claim 1, wherein: needle guide is basic coaxial with described pipe.
16. the medical treatment device based on syringe needle according to claim 1, wherein: described medical treatment device based on syringe needle is catheter introducer assembly.
17. the medical treatment device based on syringe needle according to claim 1, wherein: described medical treatment device based on syringe needle is blood collection device.
18. the medical treatment device based on syringe needle according to claim 1, wherein: described medical treatment device based on syringe needle is to stop uncle's needle assembly.
19. the medical treatment device based on syringe needle according to claim 1, wherein: described medical treatment device based on syringe needle is syringe.
20. a structure is based on the method for the medical treatment device of syringe needle, the method comprises:
Syringe needle is provided, and this syringe needle has near-end and far-end;
Pipe with first tube chamber is provided;
Needle guide is provided; Wherein, needle guide comprises: cylindrical body, this cylindrical body have from the outer surface of longitudinal axis first radial distance of body; The second tube chamber and at least one rib that extends longitudinally along the direction to the distant place from body; And wherein, described at least one rib is apart from longitudinal axis one second radial distance of described body, and the second radial distance is greater than the first radial distance;
Needle guide is inserted in the first tube chamber, thereby described at least one rib is contacted with the first tube chamber joint and with the inwall of described pipe;
The near-end of syringe needle is inserted in the needle guide;
Colloid is introduced in the glue well between needle guide and the first tube chamber, thereby colloid is contacted with the first tube chamber with the described outer surface of the near-end of the second tube chamber, syringe needle, described body;
And
This colloid is solidified.
21. method according to claim 20, wherein: glue well is included in the body of needle guide and the first annular space between the first tube chamber.
22. method according to claim 21, wherein: glue well also is included in the second annular space between needle guide and the syringe needle.
23. method according to claim 20, wherein: contiguous this at least one rib of glue well and the first tube chamber.
24. method according to claim 20, wherein: describedly needle guide is inserted step in the first tube chamber comprise needle guide is inserted in the described pipe, until needle guide is against the end of described pipe.
25. method according to claim 20 also comprises: provide depth stop, so that the restriction needle guide inserts the degree of depth in the described pipe.
26. method according to claim 20, wherein: before needle guide being inserted in the described pipe, carry out syringe needle and insert.
27. method according to claim 20, wherein: after needle guide being inserted in the described pipe, carry out syringe needle and insert.
28. method according to claim 20, wherein: described pipe is extruding pipe or molded tube.
29. method according to claim 20 also comprises: be provided at the frictional fit between syringe needle and the needle guide.
30. method according to claim 20 also comprises: needle shield is threaded in above the syringe needle.
31. method according to claim 20 also comprises: make needle shield have opening, so that near the first tube chamber, be used for importing colloid.
32. method according to claim 20 also comprises: the needle guide interference fit is packed in the first tube chamber.
33. a needle guide that is used for based on the medical treatment device of syringe needle, this needle guide comprises:
Body is used for the first tube chamber of insertion tube, this body be cylindricality and comprise apart from the outer surface of longitudinal axis first radial distance of described body and be used for fixedlying positioning the second tube chamber of the near-end of syringe needle; And
From the far-end of described body along at least two ribs that extend longitudinally to direction at a distance, in described at least two ribs each and the longitudinal axis of described body are radially at a distance of the second radial distance, the second radial distance is greater than the first radial distance, in order to form the first annular space between the described outer surface of the first tube chamber of described pipe and described body.
34. needle guide according to claim 33 also comprises: flange, this flange is connected with the far-end of these two ribs at least, and this flange provides depth stop by the far-end against described pipe.
35. needle guide according to claim 33 also comprises: glue well, be used for receiving colloid, in order to body is fixed on the first tube chamber, wherein, this glue well is positioned near these two ribs and the first tube chamber at least.
36. needle guide according to claim 35, wherein, glue well also is included in the second annular space between needle guide and the proximal needle.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72216305P | 2005-09-30 | 2005-09-30 | |
| US60/722,163 | 2005-09-30 | ||
| US11/536,236 | 2006-09-28 | ||
| US11/536,236 US8496628B2 (en) | 2005-09-30 | 2006-09-28 | Needle-based medical device including needle guide |
| PCT/US2006/038346 WO2007041450A2 (en) | 2005-09-30 | 2006-09-29 | Needle-based medical device including needle guide and method for constructing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101415453A CN101415453A (en) | 2009-04-22 |
| CN101415453B true CN101415453B (en) | 2013-02-20 |
Family
ID=40595564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680036099.4A Expired - Fee Related CN101415453B (en) | 2005-09-30 | 2006-09-29 | Needle-based medical device including needle guide and method for constructing |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101415453B (en) |
| ZA (1) | ZA200802076B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD804021S1 (en) | 2015-02-27 | 2017-11-28 | Medical Components, Inc. | Huber safety needle |
| USD804022S1 (en) | 2015-02-27 | 2017-11-28 | Medical Components, Inc. | Huber safety needle |
| USD804662S1 (en) | 2014-08-29 | 2017-12-05 | Medical Components, Inc. | Huber safety needle assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130237928A1 (en) * | 2012-03-07 | 2013-09-12 | Medical Components, Inc. | Huber Needle Assembly |
| CU24259B1 (en) | 2013-10-10 | 2017-06-05 | Medical Components Inc | HUBER NEEDLE ASSEMBLY WITH SAFETY CAPTURE DEVICE |
| US10441727B2 (en) | 2016-03-18 | 2019-10-15 | Medical Components, Inc. | Huber safety needle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3372697A (en) * | 1962-12-31 | 1968-03-12 | Becton Dickinson Co | Syringe cartridge and assembly |
-
2006
- 2006-09-29 CN CN200680036099.4A patent/CN101415453B/en not_active Expired - Fee Related
-
2008
- 2008-03-05 ZA ZA200802076A patent/ZA200802076B/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3372697A (en) * | 1962-12-31 | 1968-03-12 | Becton Dickinson Co | Syringe cartridge and assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD804662S1 (en) | 2014-08-29 | 2017-12-05 | Medical Components, Inc. | Huber safety needle assembly |
| USD804021S1 (en) | 2015-02-27 | 2017-11-28 | Medical Components, Inc. | Huber safety needle |
| USD804022S1 (en) | 2015-02-27 | 2017-11-28 | Medical Components, Inc. | Huber safety needle |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200802076B (en) | 2009-10-28 |
| CN101415453A (en) | 2009-04-22 |
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