CN204815143U - Rataining needle - Google Patents
Rataining needle Download PDFInfo
- Publication number
- CN204815143U CN204815143U CN201520523016.0U CN201520523016U CN204815143U CN 204815143 U CN204815143 U CN 204815143U CN 201520523016 U CN201520523016 U CN 201520523016U CN 204815143 U CN204815143 U CN 204815143U
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- China
- Prior art keywords
- holding section
- needle
- conduit
- closing member
- inner core
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Abstract
The utility model provides a rataining needle, includes: pipe bush, one end are equipped with and are used for keeping somewhere at endovascular pipe, the needle bush lies in the other end of pipe bush is equipped with the nook closing member that is arranged in inserting the pipe in, and needle bush peripheral hardware has and is used for the alar part handed, in the protector that can supply the nook closing member to pass, one end wore to locate the needle bush, the other end was equipped with the connecting portion of being connected with the pipe bush, the nook closing member take out from the pipe from the time, the needle point can move back to the protector in, connecting portion rotate with the pipe bush is synchronous, and connecting portion are equipped with the backstop piece outward, lie in circumference one side of alar part for supporting each other with the alar part and leaning on, it is rotatory to avoid the pipe bush to take place owing to the action of gravity when the puncture. This rataining needle has solved easy problem of deflecting between nook closing member and the pipe.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, in particular to a kind of remaining needle.
Background technology
Existing remaining needle generally comprises Needle sleeve, soft conduit and nook closing member (as draw point), and one end of nook closing member is fixedly mounted on Needle sleeve, and grafting in the catheter.During use, nook closing member can puncture human vas, and conduit is introduced blood vessel, after having punctured, extracted out by nook closing member and discard, conduit then suspends in the blood vessel, carries out infusion treatment by conduit simultaneously.
When nook closing member goes out of use, needle point is exposed, in the process processing exposed nook closing member, medical personnel are easily by exposed needle pricks, and, owing to exposed needle point also can exist bloodstain or the pathogenic bacteria of some patients, easy contaminated environment, the health of other patients and medical personnel is threatened.
With reference to Fig. 1, notification number is that the Chinese utility model patent of CN202777289U discloses a kind of remaining needle, and for convenience of description, Fig. 1 finely tunes the former graph laplacian of this patent.As shown in Figure 1, remaining needle comprises the conduit lining 22 being installed with conduit 21, is inside provided with the Needle sleeve 32 of pin main body (i.e. nook closing member, not shown), and the protector 4 be connected with Needle sleeve 32, protector 4 is connected with conduit lining 22.Pin main body is passed and is plugged in conduit 21 in protector 4.Wherein, conduit lining 22 is also provided with the difference port (or claiming difference interface) 222 for connecting extension tube 5.When pin main body exits from conduit 21, retreat in protector 4, protector 4, for covering the needle point of pin main body, is avoided outside it is exposed to.
As shown in Figure 1, the urceolus 42 that protector 4 comprises the inner core 41 for coordinating with conduit lining 22 and is set in outside inner core 41, inner core 41 is provided with arm 411, and the cardinal extremity of conduit lining 22 is provided with the flange 221 of annular on outer peripheral face.It is outer and by arm 411 by being pressed on the outer peripheral face of conduit lining 22, flange 221 is engaged mutually with arm 411, to be connected with protector 4 by conduit lining 22 that urceolus 42 is set in inner core 41.Wherein, the side face of urceolus 42 has breach, expose portion inner core 41, that is, inner core 41 is by urceolus 42 semi-surrounding.
Above-mentioned remaining needle has following defect:
The first, medical personnel in horizontal direction hand-held Needle sleeve time, the weight of conduit lining in difference port side is comparatively large, conduit lining can be rotated relative to Needle sleeve, cause deflecting between conduit and nook closing member, affect puncture procedure.
The second, the circumference of urceolus has breach, has and rock gap between inner core and urceolus, easily shakes during puncture between conduit lining and Needle sleeve, thus the accuracy of impact puncture.
3rd, during use, after puncture completes, medical personnel can use transparent applicator that conduit lining is fixed on patient skin surface, and the flange of the annular on conduit lining can produce compressing to the local skin at indwelling position, and patient can be made time serious to feel pain.
Utility model content
The first problem that this utility model solves be existing remaining needle medical personnel in horizontal direction hand-held Needle sleeve time, easily deflect between conduit and nook closing member; Second Problem can shake between the conduit lining of existing remaining needle and protector; 3rd problem is that existing remaining needle can produce compressing to the local skin at indwelling position after indwelling.
For solving the problem, this utility model provides a kind of remaining needle, comprising: conduit lining, and one end is provided with for being retained in endovascular conduit; Needle sleeve, being positioned at the other end of described conduit lining, being inside provided with the nook closing member for inserting in described conduit, has for hand-held alar part at described Needle sleeve peripheral hardware; And the protector that can pass for described nook closing member, one end is arranged in described Needle sleeve, and the other end is provided with the connecting portion be connected with described conduit lining, and when described nook closing member detaches from described conduit, needle point can retreat in described protector; Described connecting portion and described conduit lining synchronous axial system, stop block is provided with outside described connecting portion, this stop block is positioned at the circumferential side of described alar part, for described alar part mutually against, avoid described conduit lining puncture time rotate due to action of gravity.
Optionally, described connecting portion comprises inner core and is sheathed on the urceolus outside described inner core, and described urceolus circumferentially wraps up described inner core completely and coordinates in the mode that can not relatively rotate with between described inner core.
Optionally, described stop block is located at outside described urceolus.
Optionally, the outer peripheral face of described conduit lining is convexly equipped with the first holding section, and described connecting portion is provided with the second holding section, for mutually engaging with described first holding section; Described first holding section is arranged at described conduit lining when indwelling and the position that do not come in contact of patient skin.
Optionally, the corner towards patient skin side of described first holding section is formed as rounding.
Optionally, described conduit lining is also provided with the difference interface for connecting extension tube; Described first holding section comprises radially symmetrically arranged two flanges, and one of them flange and described difference interface are located along the same line vertically.
Optionally, described first holding section also comprises and is located at the draw-in groove of each flange surface to described conduit side; There is the fixture block for being arranged in corresponding draw-in groove described second holding section at free ending tool.
Optionally, described second holding section is located at that described inner core is outer and in having elastic arm, described urceolus can move relative to described inner core vertically with described Needle sleeve; By movement vertically, described second holding section can make described second holding section mutually engage with described first holding section by being pressed in outside described conduit lining by described urceolus, or releasing makes described second holding section depart from described first holding section to the pressing of described second holding section.
Compared with prior art, the technical solution of the utility model has the following advantages:
Connecting portion outer by stop block and alar part mutually against, avoid conduit lining to rotate due to action of gravity when puncturing, thus solve the problem easily deflected between nook closing member and conduit.
Further, urceolus circumferentially wraps up inner core completely and antitorquely rotatably to coordinate, and eliminates to rock gap between inner core and urceolus, the problem easily shaken between conduit lining and Needle sleeve when solving puncture.
Further, the position that the first holding section on conduit lining is located at when indwelling and patient skin does not come in contact, avoids producing compressing when indwelling to skin.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of existing remaining needle.
Fig. 2 is the installation diagram of this utility model remaining needle.
Fig. 3 is the three-dimensional exploded view showing this utility model embodiment remaining needle with a visual angle.
Fig. 4 is the three-dimensional exploded view showing this utility model embodiment remaining needle with another visual angle.
Fig. 5 shows the three-dimensional exploded view of inner core and urceolus in the protector of this utility model embodiment remaining needle.
Fig. 6 is the upward view of this utility model embodiment remaining needle, illustrated therein is the structure of alar part and stop block.
Fig. 7 is the left view of this utility model embodiment remaining needle.
Fig. 8 shows state when alar part turns to an angle from left apparent direction.
Fig. 9 shows state when alar part turns to another angle from left apparent direction.
Figure 10 is the axonometric chart of conduit lining in this utility model embodiment remaining needle.
Figure 11 is the front view of conduit lining in this utility model embodiment remaining needle.
Figure 12 is the right view of conduit lining in this utility model embodiment remaining needle.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage more become apparent, and are described in detail specific embodiment of the utility model below in conjunction with accompanying drawing.
This utility model embodiment provides a kind of remaining needle, as shown in Figure 2, comprises coaxial the conduit lining 10, the Needle sleeve 20 that arrange.One end of conduit lining 10 is provided with for being retained in endovascular soft conduit 11, and conduit lining 10 is also provided with difference interface 12, can for the extension tube 30 of transfusion for connecting.Needle sleeve 20 is positioned at the other end of conduit lining 10, and be inside provided with the nook closing member (such as draw point, not shown) for inserting in conduit 11, Needle sleeve 20 peripheral hardware has for hand-held alar part 21.Wherein, Needle sleeve 20 is provided with filter cap 22 in the one end away from conduit lining 10, and nook closing member is installed on filter cap 22, and is inserted in Needle sleeve 20.Generally, alar part 21 is positioned at radial side with in difference interface 12, and another is positioned at radial opposite side, and the angle at both radially intervals is roughly 180 degree.
Wherein, nook closing member and Needle sleeve 20 are synchronized with the movement; Be provided with caulking gum (not shown) in conduit lining 10, prevent air from entering conduit 11.Be provided with finedraw through vertically in caulking gum, pass for nook closing member.The caulking gum of remaining needle can embrace firm nook closing member, when medical personnel use remaining needle, for guaranteeing the smoothness of pulling out pin, rotate Needle sleeve 20, rotate relative to caulking gum to drive nook closing member, reaching the effect of loosening nook closing member, preventing due to too close contact and bring difficulty to detaching between caulking gum and nook closing member.During puncture, the hand-held alar part 21 of user, nook closing member is penetrated blood vessel, conduit 11 is also introduced blood vessel simultaneously, after piercing, move Needle sleeve 20 along the direction away from conduit lining 10, so that nook closing member is exited conduit 11, finally, conduit 11 suspends in the blood vessel, and extension tube 30 is infused as liquid-transport pipe-line.
With reference to Fig. 2 composition graphs 3, Fig. 4, remaining needle also comprises protector 40, and two ends are connected with conduit lining 10 and Needle sleeve 20 respectively, is provided with pin path in protector 40, can pass for nook closing member.Particularly, protector 40 and conduit lining 10, Needle sleeve 20 are coaxially arranged, and its one end is arranged in Needle sleeve 20, and the other end is provided with the connecting portion 41 be removably connected with conduit lining 10.Under confined state, nook closing member is arranged in the pin path of protector 40, and inserts in conduit 11 through pin path.When nook closing member detaches from conduit 11, its needle point can retreat in the pin path of protector 40, and protector can cover needle point, causes personal injury or environmental pollution to avoid because needle point is exposed to outer.
In the present embodiment, as Fig. 4 and shown in composition graphs 5, Fig. 6, can not mode be connected in relative rotation between connecting portion 41 with conduit lining 10, both synchronous axial system.Be provided with stop block 41a outside connecting portion 41, in the assembled condition, stop block 41a is positioned at the circumferential side of alar part 21, for alar part 21 mutually against, avoid conduit lining to rotate due to action of gravity when puncturing.During puncture, the hand-held alar part 21 of user punctures, if definition remaining needle is now below towards the side of patient skin, opposite side is top, then stop block 41a is positioned at the below of alar part 21.
As shown in Figure 7, for conduit lining 10, because difference interface 12 side is connected to extension tube 30, larger in the weight of this side, under free state, conduit lining 10 rotates (in figure R direction) relative to Needle sleeve 20 towards gravity direction, to make between stop block 41a and alar part 21 mutually against, prevention conduit lining 10 continues to rotate by alar part 21, thus avoids deflecting between conduit 11 and nook closing member.
Further, connecting portion 41 comprises inner core 411 and is sheathed on the urceolus 412 outside inner core 411, and connecting portion 41 to be contacted with conduit lining 10 by inner core 411 and coordinates, and urceolus 412 can move relative to inner core 411 vertically with Needle sleeve 20.
Now, stop block 41a is located at outside urceolus 412.
Inner core 411 coordinates and synchronous axial system in the mode that can not relatively rotate with conduit lining 10, and urceolus 412 circumferentially wraps up inner core 411 completely, makes can not relatively rotate between conduit lining 10 and urceolus 412.When loosening nook closing member, as Fig. 1 and shown in composition graphs 8, Fig. 9, rotate alar part 21, make Needle sleeve 20 drive nook closing member to rotate relative to conduit 11, now, protector 40 and conduit lining 10 do not rotate.
In the present embodiment, continue with reference to Fig. 3, Fig. 4 in conjunction with Figure 10 ~ Figure 12, by being connected together between connecting portion 41 and conduit lining 10.Particularly, the outer peripheral face of conduit lining 10 is convexly equipped with for the first holding section 13 with connecting portion 41 snap-fit engagement.Correspondingly, connecting portion 41 is provided with the second holding section 411a, for mutually engaging with the first holding section 13.In the present embodiment, it is outer and in having elastic arm that the second holding section 411a is located at inner core 411, urceolus 412 for by arm second holding section 411a by being pressed in outside conduit lining 10, the second holding section 411a is engaged mutually with the first holding section 13.Wherein, the chute 412a slided for the second holding section 411a is provided with in urceolus 412.
Wherein, the first holding section 13 is arranged at conduit lining 10 when indwelling and the position that do not come in contact of patient skin, in order to avoid produce compressing to the skin at indwelling position.Further, the smoothly transitting towards between the surface and the side face of the first holding section 13 of patient skin side in the circumferential of the first holding section 13.In other words, the first holding section 13 forms rounding at the edge towards patient skin side, to guarantee when indwelling state contacts is to skin, can with skin good fit, prevent because edge too sharply damages skin.
Further, the first holding section 13 comprises radially symmetrically arranged two flanges, and one of them flange and difference port one 2 are located along the same line vertically.Like this, when puncturing, two flanges, generally within the both sides of remaining needle, are avoided coming in contact with skin.
First holding section 13 also comprises draw-in groove 14, the second holding section 411a that is located at each flange surface conductive pipe 11 side has fixture block 411b (Fig. 5) for being arranged in corresponding draw-in groove 14 at free ending tool.
Under confined state, urceolus 412 is set in outside inner core 411 completely, and by the second holding section 411a by being pressed on the outer peripheral face of conduit lining 10, the fixture block 411b of the second holding section 411a snaps in corresponding draw-in groove 14, and with corresponding flange 13 mutually against, flange 13 provides axial limiting to the second holding section 411a.When puncture is complete; when user pulls Needle sleeve 20 to move away from conduit lining 10; urceolus 412 moves away from conduit lining 10 along inner core 411 with the motion of Needle sleeve 20; and the pressing force removed gradually the second holding section 411a; second holding section 411a opens gradually and departs from draw-in groove under elastic reaction; the final disengaging with the first holding section 13 coordinates, and protector 40 is separated with conduit lining 10, and now nook closing member retreats in protector 40 completely.
In other embodiments, connecting portion 41 also can adopt other forms, as long as can realize removably being connected with conduit lining 10.
Although this utility model discloses as above, this utility model is not defined in this.Any those skilled in the art, not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model should be as the criterion with claim limited range.
Claims (8)
1. a remaining needle, comprising:
Conduit lining, one end is provided with for being retained in endovascular conduit;
Needle sleeve, being positioned at the other end of described conduit lining, being inside provided with the nook closing member for inserting in described conduit, has for hand-held alar part at described Needle sleeve peripheral hardware; And
The protector that can pass for described nook closing member, one end is arranged in described Needle sleeve, and the other end is provided with the connecting portion be connected with described conduit lining, and when described nook closing member detaches from described conduit, needle point can retreat in described protector;
It is characterized in that,
Described connecting portion and described conduit lining synchronous axial system, stop block is provided with outside described connecting portion, this stop block is positioned at the circumferential side of described alar part, for described alar part mutually against, avoid described conduit lining puncture time rotate due to action of gravity.
2. remaining needle as claimed in claim 1, is characterized in that, described connecting portion comprises inner core and is sheathed on the urceolus outside described inner core, and described urceolus circumferentially wraps up described inner core completely and coordinates in the mode that can not relatively rotate with between described inner core.
3. remaining needle as claimed in claim 2, it is characterized in that, described stop block is located at outside described urceolus.
4. remaining needle as claimed in claim 2, it is characterized in that, the outer peripheral face of described conduit lining is convexly equipped with the first holding section, and described connecting portion is provided with the second holding section, for mutually engaging with described first holding section;
Described first holding section is arranged at described conduit lining when indwelling and the position that do not come in contact of patient skin.
5. remaining needle as claimed in claim 4, it is characterized in that, the corner towards patient skin side of described first holding section is formed as rounding.
6. the remaining needle as described in claim 4 or 5, is characterized in that, described conduit lining is also provided with the difference interface for connecting extension tube;
Described first holding section comprises radially symmetrically arranged two flanges, and one of them flange and described difference interface are located along the same line vertically.
7. remaining needle as claimed in claim 6, it is characterized in that, described first holding section also comprises is located at the draw-in groove of each flange surface to described conduit side;
There is the fixture block for being arranged in corresponding draw-in groove described second holding section at free ending tool.
8. remaining needle as claimed in claim 4, is characterized in that, described second holding section is located at that described inner core is outer and in having elastic arm, described urceolus can move relative to described inner core vertically with described Needle sleeve;
By movement vertically, described second holding section can make described second holding section mutually engage with described first holding section by being pressed in outside described conduit lining by described urceolus, or releasing makes described second holding section depart from described first holding section to the pressing of described second holding section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523016.0U CN204815143U (en) | 2015-07-17 | 2015-07-17 | Rataining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523016.0U CN204815143U (en) | 2015-07-17 | 2015-07-17 | Rataining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204815143U true CN204815143U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520523016.0U Active CN204815143U (en) | 2015-07-17 | 2015-07-17 | Rataining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204815143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133028A1 (en) * | 2017-01-20 | 2018-07-26 | 福建省百仕韦医用高分子股份有限公司 | Shielded indwelling needle with external application wings |
-
2015
- 2015-07-17 CN CN201520523016.0U patent/CN204815143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133028A1 (en) * | 2017-01-20 | 2018-07-26 | 福建省百仕韦医用高分子股份有限公司 | Shielded indwelling needle with external application wings |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |