CN207640741U - A kind of limit-type safe type retention needle piercing assembly of drawstring - Google Patents
A kind of limit-type safe type retention needle piercing assembly of drawstring Download PDFInfo
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- CN207640741U CN207640741U CN201720535301.3U CN201720535301U CN207640741U CN 207640741 U CN207640741 U CN 207640741U CN 201720535301 U CN201720535301 U CN 201720535301U CN 207640741 U CN207640741 U CN 207640741U
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- needle
- drawstring
- needle point
- covering
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Abstract
The utility model is related to a kind of safe type retention needle needle tubing piercing assemblies, especially a kind of limit-type safety-type indwelling piercing assembly of drawstring, stop including needle point and component, needle point covering, operation handle, needle tubing and needle stand, needle point covering is connect with catheter block in a manner of it can shake off, after removing needle, needle point covering is detached from catheter block, and structural feature is：It further include a kind of drawstring limiting device containing drawstring, drawstring one end is connect with needle stand, the other end is connect with needle point covering, and drawstring plug is set to the column toroidal cavity between intracavity of handle and needle point covering, and the spread length of drawstring retreats to needle point the stroke for stopping component rear end more than needle point.The utility model has the following advantages that compared with prior art：Structure is simpler, limits more firm effective.
Description
Technical field
The utility model is related to a kind of safe type retention needle needle tubing piercing assembly, especially a kind of drawstring is limit-type safety-type
Indwelling piercing assembly.
Background technology
Safe type retention needle needle tubing piercing assembly in the prior art, which is usually stopped by connector, needle point, component, needle point screening
Shield, operation handle, needle tubing 6 and needle stand 7 form.Needle point covering for covering the needle tubing after removing needle, protect it from it is exposed, with
It prevents from stabbing or polluting environment.During removing needle, needle stand needs opposite needle point covering telescopic slide and by bayonet unit reality
Limit after now stretching in place, needle point covering and needle stand are also required to complete to be disconnected with needle tubing seat.In the prior art,
The construction for limiting and being disconnected is respectively set, and structure is more complex, and bayonet unit also when have malfunction thread off the phenomenon that send out
It is raw.
Utility model content
The purpose of the utility model is to overcome shortcomings in the prior art, and it is simpler to provide a kind of structure, limit
A kind of more firm effective limit-type safety-type indwelling piercing assembly of drawstring in position.
The purpose of this utility model is realized by following approach.
A kind of limit-type safety-type indwelling piercing assembly of drawstring, including needle point stop and component, needle point covering, manipulator
Handle, needle tubing and needle stand, needle point covering is connect with catheter block in a manner of it can shake off, and after removing needle, needle point covering is de- with catheter block
From structural feature is：Further include a kind of drawstring limiting device containing drawstring, drawstring one end is connect with needle stand, the other end
It is connect with needle point covering, drawstring plug is set to the column toroidal cavity between intracavity of handle and needle point covering, and the stretching, extension of drawstring is grown
Degree retreats to needle point the stroke for stopping component rear end more than needle point.
After retained needle puncture sets pipe success, pull operation handle moves backward, and needle tubing is driven gradually to withdraw from conduit tube component,
Covering also gradually skids off operation handle inner cavity, and drawstring is also gradually spread out, when moving and stretching after drawstring is with handle, operation handle
It moving afterwards again, drives drawstring that covering, needle point covering part is pulled to be detached with catheter block, operation is completed, in this way since drawstring limits,
Needle tubing needle point is limited in without exposed in covering, and needle tubing to alter forward be shielded from needle point in part stop component blocking and
It will not be pierced by connector, reach anti-needle and stab purpose.
The purpose of this utility model can also be realized by following approach.
Drawstring position-limit mechanism further includes two rope end fasteners, drawstring both ends be respectively and fixedly connected in rope end fastener be glued hole and
In slot, head end and the splicing of rope end the fastener back-to-back tail end for being caught in needle point covering and needle stand respectively.
Rope end fastener is a pole piece, and a large-scale U-type groove, U-type groove chamber and needle point covering are opened up in pole piece one end
Tail end and needle stand front end card insertion it is affixed, such pole piece has an insertion end and bottom end, pole piece bottom end, that is, the other end
A small elongated U-type groove is opened up, when for the tail end of pole piece and needle point covering and the affixed assembly of the front end card insertion of needle stand boss,
Needle tubing is avoided, a drawstring end coupling hole is set at a certain distance from parallel with pole piece axis, coupling hole is through to greatly by bottom face
Type U-type groove bottom surface, and a rectangle or arc-shaped the first grooving and the second grooving, an end slot end is respectively set at coupling hole both ends
Mouth and coupling hole unicom, the other end are pierced by cylinder outer wall, and the first grooving rolls over other fag end when affixed for drawstring glue, the second grooving is used
Drawstring is stored when fag end fastener is back-to-back when assembly.
First grooving rolls over other fag end when affixed for drawstring glue so that affixed more solid and reliable, the second grooving is for filling
Timing fag end fastener stores drawstring when back-to-back so that the two can fit closely, in order to avoid influence Lay between needle tubing and conduit away from
From.
Needle stand is made of lid shell and plant needle circular bosses, plants needle circular bosses centre vestibule by plant pin hole and dispensing cave structure
At.
Needle point covering is connect by a kind of connector with catheter block, and connector is connect with catheter block in a manner of it can shake off.
The described mode of shaking off, which connects, snaps connection either point glue connection.
In conclusion the utility model has the following advantages that compared with prior art：Structure is simpler, and limit is more firm to be had
Effect.
Description of the drawings
Fig. 1 is using a kind of remaining needle signal of the limit-type safety-type indwelling piercing assembly of drawstring described in the utility model
Figure；
Fig. 2 is shown using a kind of remaining needle section view of the limit-type safety-type indwelling piercing assembly of drawstring described in the utility model
It is intended to；
Fig. 3 is connector stereoscopic schematic diagram；Fig. 4 is connector three-dimensional cutaway view；
Fig. 5 is the stereoscopic schematic diagram of needle point covering；Fig. 6 is the three-dimensional cutaway view of needle point covering；
Fig. 7 is the stereoscopic schematic diagram of rope end fastener；Fig. 8 is the stereoscopic schematic diagram of rope end fastener；
Fig. 9 is handle schematic front view；Figure 10 is handle left view；
Figure 11 is needle stand stereoscopic schematic diagram；Figure 12 is needle stand solid three-dimensional cutaway view；
Figure 13 is the schematic diagram after removing needle；Figure 14 is the partial enlarged view of Figure 13.
More description in detail is carried out to the utility model below in conjunction with the accompanying drawings.
Specific implementation mode
Most preferred embodiment：
Referring to Fig.1, Fig. 2, a kind of limit-type safety-type indwelling piercing assembly of drawstring, including needle tubing piercing assembly connector 1,
Needle point, which stops, component 2, needle point covering 3, operation handle 4, drawstring position-limit mechanism 5, needle tubing 6 and needle stand 7, medium pulling rope position restrainer
Structure is made of two rope end fasteners 5.1 with drawstring 5.2, and drawstring both ends, which are respectively and fixedly connected with, is glued in rope end fastener in hole and slot,
Front end and the splicing of rope end the fastener back-to-back tail end for being respectively clamped into needle point covering 3 and needle stand 7.
With reference to Fig. 3 and Fig. 4, connector 1 includes cylindroid back segment 1.1 and cylindrical leading portion 1.2.On 1.2 periphery wall of leading portion
Corresponding part with buckle salient point 1.2.1 and catheter block snaps connection.1.1 inner cavity of back segment is a step type, smaller inner cavity
1.2.2 it is used to install needle point to stop and component 2, larger inner cavity 1.2.5 is used for and the front end of needle point covering is affixed.
Referring to figure 5 and figure 6, needle point covering 3 is a kind of ladder rhabodoid, and front end is larger, wherein seam allowance end 3.1 be used for
Connector 1 is affixed, and front interior cavity 3.1.2 stops for the needle point containing dress component.Back segment 3.2 is an elongate rod, and needle passing hole is run through in centre
3.2.1。
With reference to Fig. 7 and Fig. 8, rope end fastener 5.1：It is a pole piece, a large-scale U-type groove is opened up in pole piece one end
5.1.1, U-type groove chamber and the tail end of needle point covering 3 and the head end card insertion of needle stand 7 are affixed, and such pole piece has an insertion end
And bottom end, pole piece bottom end, that is, the other end open up a small elongated U-type groove 5.1.3, for pole piece and needle point covering 3
When the affixed assembly of the head end card insertion of 7 boss of tail end and needle stand, needle tubing is avoided.It is arranged one at a certain distance from parallel with pole piece axis
Drawstring end coupling hole 5.1.2, coupling hole is through to large-scale U-type groove bottom surface by bottom face, and is respectively set one at coupling hole both ends
Rectangle or arc-shaped grooving 5.1.2.1,5.1.2.2, an end slot port and coupling hole unicom, the other end are pierced by cylinder outer wall, slot
5.1.2.1 it is used to roll over other fag end when drawstring glue is affixed so that affixed more solid and reliable, slot 5.1.2.2 is for fag end when assembling
Drawstring is stored when fastener is back-to-back so that the two can fit closely, in order to avoid influence the Lay distance between needle tubing and conduit.
With reference to Fig. 9 and Figure 10, handle is made of ontology 4.2 and the deposited wing 4.1.Ontology 4.2 is in a kind of and 1 cylindroid of connector
The matched oval Ring-cylindrical of back segment 1.1.Its inner cavity is socketed with 1 cylindroid back segment 1.1 of connector.
1 and Figure 12 referring to Fig.1, needle stand 7 are made of lid shell 7.1 and plant needle circular bosses 7.2, plant in needle circular bosses 7.2
Between vestibule be made of plant pin hole 7.2.1 and dispensing cave 7.2.2.
Remaining needle assembles：
Drawstring position-limit mechanism is prepared first, one section of drawstring 5.2 is sheared according to required length, by drawstring both ends respectively from rope end
5.1 back side of fastener passes through rope end coupling hole 5.1.2, and rolls over other fag end in grooving 5.1.2.1, in rope end coupling hole and grooving
In click and enter glue, affixed drawstring.Then needle tubing fixed connecting end is sequentially passed through into connector 1, needle point stops and component 2, needle point covering
3, connector and needle tubing covering are then pressed into snapping, at this moment needle point, which stops, component and both is accommodated in the inner cavity constituted,
Needle tubing is inserted on needle stand again and plants pin hole and affixed.Later, rope end fastener on drawstring position-limit mechanism is covered with needle point respectively
The affixed assembly of head end card insertion of 7 boss of part rear end and needle stand, and it is affixed to put glue.Then by each component along needle tubing toward needle stand side
To gathering, then drawstring is turned up to make in order and is close to needle point covering outer surface, followed by by entire component after operation handle 4
End, needle tubing is first inserted into intracavity of handle first, and other component orders fill in inner cavity, until needle stand shell and operation handle sheath, hand
Pommel face is touched with needle stand inner bottom surface, affixed to the two dispensing, and the assembly of needle tubing piercing assembly is completed, and last piercing assembly needle tubing is worn
Cross conduit tube component inner cavity, needle point exposes catheter tip, and conduit base rear end inner cavity is plugged in connector front boss, inner cavity upper groove with
The convex buckle of boss connects, and remaining needle assembly is completed.
Remaining needle uses operation：
After retained needle puncture sets pipe success, pull operation handle moves backward, and needle tubing is driven gradually to withdraw from conduit tube component,
Connector also gradually skids off operation handle inner cavity with covering, and drawstring is also gradually spread out, when moving and stretching after drawstring is with handle,
Operation handle is moved afterwards again, drives drawstring that covering and connector assembly, connector is pulled to be detached with catheter block, and operation is completed,
In this way due to drawstring limit, needle tubing needle point is limited in without exposed in covering, and needle tubing to alter forward by connector with
Needle point, which stops, in covering component blocking without being pierced by connector, reaches anti-needle and stabs purpose.
The not described part of the present embodiment is same as the prior art.
Claims (5)
1. a kind of limit-type safety-type indwelling piercing assembly of drawstring, including needle point stop component, needle point covering, operation handle,
Needle tubing and needle stand, needle point covering is connect with catheter block in a manner of it can shake off, and after removing needle, needle point covering is detached from catheter block,
It is characterized in that：Further include a kind of drawstring limiting device containing drawstring, drawstring one end is connect with needle stand, and the other end hides with needle point
Shield connects, and drawstring plug is set to the column toroidal cavity between intracavity of handle and needle point covering, and the spread length of drawstring is more than needle
Point, which is retreated, stops the stroke for component rear end to needle point.
2. the limit-type safety-type indwelling piercing assembly of a kind of drawstring according to claim 1, which is characterized in that drawstring limits
Mechanism further includes two rope end fasteners, and drawstring both ends, which are respectively and fixedly connected with, is glued in rope end fastener in hole and slot, rope end fastener
Head end and the splicing of the back-to-back tail end for being caught in needle point covering and needle stand respectively.
3. the limit-type safety-type indwelling piercing assembly of a kind of drawstring according to claim 1, which is characterized in that needle stand is by covering
Shape shell and plant needle circular bosses are constituted, and are planted vestibule among needle circular bosses and are made of plant pin hole and dispensing cave.
4. the limit-type safety-type indwelling piercing assembly of a kind of drawstring according to claim 1, which is characterized in that needle point covers
Part is connect by a kind of connector with catheter block, and connector is connect with catheter block in a manner of it can shake off.
5. the limit-type safety-type indwelling piercing assembly of a kind of drawstring according to claim 4, which is characterized in that described can
The mode of shaking off, which connects, snaps connection either point glue connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720535301.3U CN207640741U (en) | 2017-05-15 | 2017-05-15 | A kind of limit-type safe type retention needle piercing assembly of drawstring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720535301.3U CN207640741U (en) | 2017-05-15 | 2017-05-15 | A kind of limit-type safe type retention needle piercing assembly of drawstring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207640741U true CN207640741U (en) | 2018-07-24 |
Family
ID=62885104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720535301.3U Active CN207640741U (en) | 2017-05-15 | 2017-05-15 | A kind of limit-type safe type retention needle piercing assembly of drawstring |
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| CN (1) | CN207640741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109381773A (en) * | 2018-10-12 | 2019-02-26 | 中国人民解放军总医院 | A kind of open air first aid venous detaining needle |
| CN110582318A (en) * | 2017-05-15 | 2019-12-17 | 福建省百仕韦医用高分子股份有限公司 | Needle puncture subassembly is kept somewhere to spacing formula safety type of stay cord |
| CN112220991A (en) * | 2020-10-16 | 2021-01-15 | 临沂市中心医院(临沂市沂水中心医院) | Medical needle head with puncture-proof structure |
-
2017
- 2017-05-15 CN CN201720535301.3U patent/CN207640741U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110582318A (en) * | 2017-05-15 | 2019-12-17 | 福建省百仕韦医用高分子股份有限公司 | Needle puncture subassembly is kept somewhere to spacing formula safety type of stay cord |
| CN109381773A (en) * | 2018-10-12 | 2019-02-26 | 中国人民解放军总医院 | A kind of open air first aid venous detaining needle |
| CN112220991A (en) * | 2020-10-16 | 2021-01-15 | 临沂市中心医院(临沂市沂水中心医院) | Medical needle head with puncture-proof structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230904 Granted publication date: 20180724 |
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