CN201807011U - Needle tube assembly of retaining needle - Google Patents
Needle tube assembly of retaining needle Download PDFInfo
- Publication number
- CN201807011U CN201807011U CN2010205247722U CN201020524772U CN201807011U CN 201807011 U CN201807011 U CN 201807011U CN 2010205247722 U CN2010205247722 U CN 2010205247722U CN 201020524772 U CN201020524772 U CN 201020524772U CN 201807011 U CN201807011 U CN 201807011U
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- CN
- China
- Prior art keywords
- needle
- handle
- connecting elements
- needle tubing
- remaining
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- Expired - Lifetime
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Abstract
The utility model relates to an apparatus leading a medium into a body, in particular to a needle tube assembly of a retaining needle, which comprises a connecting component, a flexible protection sleeve, a needle seat and a needle tube. The needle tube assembly of the retaining needle is structurally characterized by also comprising a stretching spring, the flexible protection sleeve can be enclosed in a cavity of the needle seat after being compressed, and the connecting component is connected with the needle seat through a buckling device. The needle tube assembly of the retaining needle is technically characterized in that the stretching spring is arranged in the retaining needle with the flexible protection sleeve, and during the puncturing process, the needle seat and the flexible protection sleeve can be unfolded under effect of the spring , the needle tube can move away from a catheter and finally enter the flexible protection sleeve after moving away from a catheter assembly, and the connecting component can be further handheld to be delivered deep into a blood vessel. The utility model has the following advantages that the needle tip can not be exposed out of the port of the catheter during the puncturing process, no harm can be caused to the blood vessel during catheter delivery, and vasculitis can be avoided. Form medical operators, the success rate of operation is high; and for patients, pains caused by injuries and the need to puncture again can be avoided.
Description
Technical field
This utility model relates to a kind ofly introduces intravital apparatus with medium, particularly a kind of remaining needle needle tubing assembly.
Background technology
In the prior art, a kind of flexible protective sleeve that has is arranged, can prevent the remaining needle of stabbing, specifically can be with reference to Chinese patent ZL200920139686.7.This kind remaining needle includes conduit tube component and needle tubing assembly; conduit tube component includes soft conduit, the catheter block that is connected with conduit one end and the handle that is connected with catheter block; the needle tubing assembly comprises scalable, and the protective sleeve formed of nestable some slide bars and the needle stand that rigidity puncture needle tubing is installed.Before the use, the puncture needle tubing is plugged in the conduit, and exposes needle point, and protective sleeve is compressive state, and flexibly connects with catheter block.During use; the puncture needle tubing puncture intravasation that at first will have conduit by one-handed performance; and the application of force is together sent conduit and needle tubing into the blood vessel depths; pin handle A/C assembly afterwards on the other hand; guarantee that catheter retaining is in blood vessel; another pulls moving protective sleeve makes it away from conduit tube component, stretches needle tubing being withdrawed from conduit and conduit tube component thereby drive protective sleeve, and needle tubing is entered in the protective sleeve fully.
The weak point of above-mentioned remaining needle is: 1, after puncture; because needing full extension to open, protective sleeve the puncture needle tubing could be included in its protective sleeve; but in actual the use; because slider bar travel is long, occurring protective sleeve does not easily also have full extension to open, and has just withdrawn conduit tube component; cause needle tip still exposed outside; this moment, protective sleeve lost the effect that comprises to needle tubing, needle point takes place easily stab accident, brought medical care problem.2, after the puncture needle tubing was finished puncture, needle point still was exposed at outside the catheter port, and is admitted to the blood vessel depths together with conduit, if misoperation, perhaps the blood vessel condition is bad, and needle point very easily scratches tunica intima, causes vasculitis; Send in the pipe process, needle point is piercing blood vessel once more also, causes and puts tube failure, causes patient need bear grieved and the misery of puncture once more.
The utility model content
The purpose of this utility model is to overcome weak point of the prior art and provides a kind of avoids taking place that needle point is stabbed, the remaining needle needle tubing assembly of the withdraw of the needle automatically.
The purpose of this utility model realizes by following approach:
Remaining needle needle tubing assembly, include connecting elements, flexible protective sleeve, needle stand and needle tubing, one end of connecting elements is connected with the conduit tube component of remaining needle, the other end is connected with needle stand by flexible protective sleeve, and an end of needle tubing is installed on the needle stand, and its structural feature is, also include the stretching, extension spring, after the flexible protective sleeve compression, be placed around in its inner chamber by needle stand, connecting elements is connected with needle stand by a kind of fastening device; One end of stretching spring is connected with connecting elements, and the other end is installed in the needle stand inner chamber.
When mounted; needle stand contains round the flexible protective sleeve of compression and the stretching, extension spring that is compressing, and is connected with connecting elements by fastening device, and needle tubing passes flexible protective sleeve and connecting elements inner chamber in regular turn; puncture is in the conduit tube component of remaining needle, and needle point exposes outside catheter port.During use, finish puncture earlier, promptly the needle tubing band conduit puncture intravasation; open the fastening device on connecting elements and the needle stand then, the stretching, extension spring of compression slowly launches, and drives the relative connecting elements motion of needle stand and flexible protective sleeve; away from conduit tube component; at this moment, needle tubing is along with conduit is recessed in the motion of needle stand gradually, and needle point submerges in the conduit; and finally leave conduit tube component and enter in the flexible protective sleeve; meanwhile, the further hand-held connecting elements of operator is sent conduit into the blood vessel depths.
Like this, in operation, needle tubing just can fall back in the flexible protective sleeve automatically, realizes that the limit send the technique effect of the tube edge withdraw of the needle, makes protective sleeve to finish the comprise effect of puncture back realization to needle tubing at needle tubing, avoids bringing needle point medical care problem such as to stab; In addition, because after finishing puncture, it is just unfolded to stretch spring, drive needle tubing away from conduit tube component, when sending pipe, needle point no longer is exposed at outside the catheter port, and conduit can not damage blood vessel originally as soft tube, therefore concerning the medical care operator, it is operable to the power height, for patients, and the misery that then can avoid injury and need to puncture once more.
Connecting elements can further be specially:
Connecting elements is a kind of adapter sleeve.Or:
Connecting elements includes adapter sleeve and handle, and adapter sleeve one end is connected with the conduit tube component of remaining needle, and the other end then is connected with handle, and handle then is connected with needle stand by flexible protective sleeve.
Like this, connecting elements can be a kind of adapter sleeve, is used for connecting duct assembly and flexible protective sleeve, can be used as hand-held member simultaneously, is convenient to the operator and operates; Connecting elements can also be the member that adapter sleeve and handle are formed, and adapter sleeve connecting duct assembly, handle connect flexible protective sleeve, and as hand-held member.
Thereby, when connecting elements comprises adapter sleeve and handle, can further be specially:
Have one on the adapter sleeve and push away handle, its conductive pipe assembly direction is extended, and at one end portion is upwards curved, the curved face that pushes away.
Push away handle and can be used for auxiliary pipe-conveying, operator's finger is pressed to arc and is pushed away face, and this pushes away counteracting force of face feedback, and adapter sleeve is pushed in the blood vessel thereby drive conduit just towards the duct direction motion.By this member, realized laborsaving, easily the conduit on the conduit tube component is pushed to the blood vessel depths.
Arc pushes away face and is provided with horizontal tread plate, and the bearing of trend of this tread plate is vertical with the axis of connecting elements, and is perhaps in a certain angle, can further realize laborsaving like this and operation easily.
This pushes away handle can also realize that one-handed performance finishes the limit and push the conduit intravasation, the technique effect of the limit recession withdraw of the needle, specifically:
One end of adapter sleeve is arranged in an end inner chamber of handle, and the two formation is slidingly connected.
That is to say that adapter sleeve and handle are socket, be a kind of telescopic connection structure; like this; behind remaining needle needle point and the first intravasation of catheter proximal end, thumb and middle finger clamp handle, maintain static; because handle has limited the activity of protective sleeve and needle stand; therefore it is motionless to go into the blood vessel place at the beginning of needle tubing also is located in, and forefinger pushes adapter sleeve forward by the handle that pushes away that is pressed on the adapter sleeve; walk to vessel directions thereby promote conduit tube component, conduit is sent into the blood vessel depths the most at last.
Like this send the pin mode, can avoid needle tubing with conduit intravasation depths, scratch blood vessel, can also realize the technical advantage of one-handed performance, and can allow the operator vacate the fastening device that a hands removes to open back door connecting elements and needle stand, realize sending fast and effectively the pin mode.
Stretching, extension spring described in the utility model can further be specially:
Stretch spring and be positioned at the protective sleeve inner chamber.Therefore so easy normal use that influences needle tubing, preferably, is stretched spring and is contained round flexible protective sleeve, is positioned on the flexible protective sleeve peripheral sides.
When connecting elements was adapter sleeve and handle combination, the position that the stretching, extension spring is connected with connecting elements can be an adapter sleeve, can also be the medial surface of handle.When adapter sleeve and handle were telescopic being slidingly connected, this link position can be positioned at because of being slidingly connected on the step surface that the handle medial surface forms.
Fastening device described in the utility model can further be specially:
Fastening device is a kind of " L " v notch v button hole on connecting elements, is a kind of buckle on needle stand.
During installation, buckle is pressed in " L " v notch v, and needle stand is reversed, thereby make the buckle inlay card in this " L " shape button hole.During operation,, make buckle deviate from this button hole, and skid off, realize that needle stand breaks away from connecting elements, stretching under the spring action, away from connecting elements along breach with the needle stand turn-back.
Another kind of structure is:
Fastening device is a kind of hole clipping on connecting elements, is a kind of handle buckle on needle stand.
The handle buckle has a fulcrum, is installed on the needle stand end, and a side is a jag, and opposite side is a pressure handle, and the two is formed centrally a kind of lever construction in fulcrum being.During installation, the jag of buckle can embed hole clipping, forms snapping.During operation, press pressure handle, jag just upsprings from hole clipping, realizes the disengaging of connecting elements and needle stand.
Fastening device preferably adopts ears formula snapping, and a fastening device promptly is installed respectively on the axial slices point of symmetry of needle stand and connecting elements, like this, install and transportation in, not being connected and can coming off easily between needle stand and the connecting elements causes inefficacy.
In sum; technical essential of the present utility model is: install in the remaining needle that has flexible protective sleeve and stretch spring; in piercing process; needle stand and flexible protective sleeve can launch under the effect of spring, make needle tubing along with conduit is recessed in the motion of needle stand gradually, and needle point submerges in the conduit; and finally leave conduit tube component and enter in the flexible protective sleeve; meanwhile, the further hand-held connecting elements of operator is sent conduit into the blood vessel depths.This utility model has following advantage compared to existing technology: the piercing process needle point no longer exposes outside catheter port, can not damage when sending pipe blood vessel, avoid vasculitic generation, simultaneously concerning the medical care operator, it is operable to the power height, for patients, the misery that then can avoid injury and need to puncture once more.
Description of drawings
Accompanying drawing 1 is depicted as the structural representation of remaining needle described in the utility model, comprises conduit tube component and needle tubing assembly;
Accompanying drawing 3 is the described surface structure sketch map with remaining needle of another kind of fastening device of this utility model embodiment; Fig. 3 a is the structural representation of this fastening device on handle, and Fig. 3 b is the structural representation of this fastening device on needle stand;
Accompanying drawing 4 is the cutaway view of Fig. 2;
Accompanying drawing 5 is depicted as the split structural representation of the described connecting elements of this utility model embodiment;
Below we are described further this utility model in conjunction with the embodiments.
The specific embodiment
Most preferred embodiment:
With reference to accompanying drawing 1, remaining needle needle tubing assembly includes connecting elements 1, flexible protective sleeve 2, needle tubing 3, stretches spring 4, needle stand 5; Connecting elements 1 includes adapter sleeve 11 and handle 12, and flexible protective sleeve 2 includes little slide bar 21 and big slide bar 22; Needle tubing 3 is installed in the needle stand 5 by a kind of connecting rod 8.
On the basis of accompanying drawing 1 with reference to accompanying drawing 5, the inner chamber of adapter sleeve 11 is from front end to the rear end stairstepping, be needle lumen, separate cavities and internal cavity in regular turn, the peripheral shape of needle lumen is a kind of boss 111, separate cavities 112 is a kind of inverted cone chamber, fill in batching pig 114 in interior, internal cavity 113 is a cylindrical cavity, and three chamber concentric stageds distribute.Integrated on the peripheral sides of adapter sleeve have a kind of handle 13 that pushes away, and this pushes away handle and extends along central shaft conductive pipe assembly 6 directions, and at the tail end prying that makes progress, form an arc and push away face, and arc pushes away and is distributed with some anti-skidding stricture of vaginas on the face.
The front end boss 111 of adapter sleeve 11 is connected with conduit tube component 6, rearward end embeds in the front side inner chamber of handle 12, edge, rear end at adapter sleeve 11 is a kind of step surface that turns up, the front end edge of handle 12 is the step surface that colludes in a kind of, the two relative limit, after adapter sleeve 11 embedded handle 12 inner chambers, the two can slide relatively, the operation that stretches and compress.
With reference to accompanying drawing 1 and accompanying drawing 4; big slide bar 22 in the flexible protective sleeve 2 is connected with needle stand 5; the one end interlocking of little slide bar 21 is in the internal cavity 111 of adapter sleeve 11; mode with a kind of relative limit forms a kind of connection that can slide relatively, promptly can slide relatively between adapter sleeve 11 and the little slide bar 21.In addition, can be placed around under the prerequisite in the flexible protective sleeve 2 satisfying needle tubing 3, adapter sleeve 11 can also be fixedlyed connected with little slide bar 21.
An end that stretches spring 4 is installed on the interior step surface at handle 12 middle parts, and the other end then is installed on the step surface of needle stand 5 intracavity bottoms, can be with reference to accompanying drawing 1,2,4.
A kind of shown in accompanying drawing 2 and accompanying drawing 2a, 2b, fastening device 7 is a kind of " L " v notch v button hole 71 on handle 12, is a kind of buckle 72 on needle stand.During installation, buckle 72 is pressed in " L " v notch v 71, and reverses needle stand 5, thereby make buckle 72 inlay cards in this " L " shape button hole 71.During operation, with needle stand 5 turn-backs, make buckle 72 deviate from this button hole 71, and skid off along breach, needle stand 5 just can break away from handle 12.
Another kind is shown in accompanying drawing 3 and accompanying drawing 3a, 3b, and fastening device 7 is a kind of hole clipping 73 on handle 12, is a kind of handle buckle 74 on needle stand 5.Handle buckle 74 has a fulcrum, is installed on the needle stand 5 end edgewise, and a side is a jag, and opposite side is a pressure handle, and the two is formed centrally a kind of lever construction in fulcrum being.During installation, the jag of buckle 74 can embed hole clipping 73, forms snapping.During operation, press pressure handle, jag just upsprings from hole clipping 73, realizes that needle stand 5 breaks away from handle 12.
Above-mentioned fastening device 7 adopts ears formula snapping, and a fastening device promptly is installed respectively on the axial slices point of symmetry of needle stand 5 and handle, sees shown in accompanying drawing 2b and the 3b.
The use principle of remaining needle needle tubing assembly described in the utility model is as follows:
During installation, as accompanying drawing 2 and accompanying drawing 3, needle tubing 2 punctures are in conduit tube component 6; and expose needle point in an end of conduit 61; flexible protective sleeve 2 and stretching, extension spring 4 are compressive state, are placed around in its inner chamber by needle stand 5 and handle 12, and needle stand 5 is connected by fastening device 7 with handle 12 simultaneously.
During operation; earlier by the needle point puncture vessel; and leader tape conduit intravasation; when sending pipe; thumb and middle finger clamp handle 12; forefinger is pressed by pushing away on the handle 13, and fixed handle 12 is motionless, and forefinger pushes away adapter sleeve 11 forward by the handle 14 that pushes away on the adapter sleeve 11; simultaneously; open fastening device 7, under the effect of stretching spring 4, the big slide bar and the little slide bar of flexible protective sleeve 2 trail in regular turn; needle stand 5 drives needle tubing 2 and draws back; forefinger promoted adapter sleeve 11 and drove conduits 61 and move to the blood vessel depths this moment, until conduit 61 is sent into blood vessel fully, had realized that withdraw of the needle limit, limit send the technical characterstic of pipe.
It is same as the prior art that this utility model is not stated part.
Claims (10)
1. remaining needle needle tubing assembly, include connecting elements (1), flexible protective sleeve (2), needle stand (5) and needle tubing (3), one end of connecting elements (1) is connected with the conduit tube component (6) of remaining needle, the other end is connected with needle stand (5) by flexible protective sleeve (2), one end of needle tubing (3) is installed on the needle stand (5), it is characterized in that, also include and stretch spring (4), after flexible protective sleeve (2) compression, be placed around in its inner chamber by needle stand (5), connecting elements (1) is connected with needle stand (5) by a kind of fastening device (7); One end of stretching spring (4) is connected with connecting elements (1), and the other end is installed in needle stand (5) inner chamber.
2. remaining needle needle tubing assembly according to claim 1 is characterized in that connecting elements (1) is a kind of adapter sleeve.
3. remaining needle needle tubing assembly according to claim 1; it is characterized in that; connecting elements (1) includes adapter sleeve (11) and handle (12); adapter sleeve (11) one ends are connected with the conduit tube component (6) of remaining needle; the other end then is connected with handle (12), and handle (12) is connected with needle stand (5) by flexible protective sleeve (2).
4. remaining needle needle tubing assembly according to claim 1 is characterized in that, has one on the connecting elements (1) and pushes away handle (13), and its conductive pipe assembly (6) direction is extended, and at one end portion is upwards curved, the curved face that pushes away.
5. remaining needle needle tubing assembly according to claim 4 is characterized in that arc pushes away face and is provided with horizontal tread plate, and the bearing of trend of this tread plate is vertical with the axis of connecting elements (1), and is perhaps in a certain angle.
6. according to claim 3 or 5 described remaining needle needle tubing assemblies, it is characterized in that an end of adapter sleeve (11) is arranged in an end inner chamber of handle (12), the two formation is slidingly connected, and is a kind of telescopic connection structure.
7. remaining needle needle tubing assembly according to claim 1 is characterized in that, stretches spring (4) and contains round flexible protective sleeve (2), is positioned on flexible protective sleeve (2) peripheral sides.
8. remaining needle needle tubing assembly according to claim 1 is characterized in that, fastening device (7) is a kind of " L " v notch v button hole (71) on connecting elements (1), goes up at needle stand (5) to be a kind of buckle (72).
9. remaining needle needle tubing assembly according to claim 1 is characterized in that, fastening device (7) is gone up to a kind of hole clipping (73) at connecting elements (1), is a kind of handle buckle (74) on needle stand.
10. remaining needle needle tubing assembly according to claim 9 is characterized in that handle buckle (74) has a fulcrum, is installed on needle stand (5) end, and a side is a jag, and opposite side is a pressure handle, and the two is formed centrally a kind of lever construction in fulcrum being.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205247722U CN201807011U (en) | 2010-09-08 | 2010-09-08 | Needle tube assembly of retaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205247722U CN201807011U (en) | 2010-09-08 | 2010-09-08 | Needle tube assembly of retaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201807011U true CN201807011U (en) | 2011-04-27 |
Family
ID=43889969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205247722U Expired - Lifetime CN201807011U (en) | 2010-09-08 | 2010-09-08 | Needle tube assembly of retaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201807011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000370A (en) * | 2010-09-08 | 2011-04-06 | 陈永曦 | Retention needle tube assembly |
-
2010
- 2010-09-08 CN CN2010205247722U patent/CN201807011U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000370A (en) * | 2010-09-08 | 2011-04-06 | 陈永曦 | Retention needle tube assembly |
| CN102000370B (en) * | 2010-09-08 | 2013-03-13 | 福建省百仕韦医用高分子股份有限公司 | Retention needle tube assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUJIAN BESTWAY MED-MACROMOLECULE CORP. Free format text: FORMER OWNER: CHEN YONGXI Effective date: 20120723 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350005 FUZHOU, FUJIAN PROVINCE TO: 350004 FUZHOU, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120723 Address after: Fuzhou City, Fujian province 350004 Industrial Road, Taijiang District No. 193 Baolong city square southwest side Xiaobailou 2 layer 202 Patentee after: Fuzhou Bestway Med-Macromolecule Corp. Address before: Fu Taijiang Village District of Fuzhou City, Fujian province 350005 15 3 Building No. 305 Patentee before: Chen Yongxi |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |