CN202146485U - Novel remaining needle with stabbing preventive needle tip - Google Patents
Novel remaining needle with stabbing preventive needle tip Download PDFInfo
- Publication number
- CN202146485U CN202146485U CN201120247908U CN201120247908U CN202146485U CN 202146485 U CN202146485 U CN 202146485U CN 201120247908 U CN201120247908 U CN 201120247908U CN 201120247908 U CN201120247908 U CN 201120247908U CN 202146485 U CN202146485 U CN 202146485U
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- needle
- litter
- connecting portion
- stabbed
- handle
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Abstract
The utility model relates to a medical appliance applicable to blood vessels, and particularly relates to a novel remaining needle with a stabbing preventive needle tip. The novel remaining needle is structurally characterized by further comprising a safe slider and a limiting slide rod, a needle tube with a catheter is punctured in a blood vessel of a patient at first, then a pinching handle is fixed, a needle seat is pulled rearwards to drive the limiting slide rod to rearwards slide in a sliding groove of the safe slider until the sliding groove of the safe slider enters a safe clamp groove at the tail end of the limiting slide rod, a first connecting portion is disconnected from a catheter seat, and a catheter component is remained at a puncture position. At this time, the needle tip is immerged into an inner cavity of a center shaft of the safe slider, the safe slider is limited by the safe clamp groove at the tail end of the limiting slide rod, cannot move, safely wraps the needle tip and prevents the needle tip from being exposed, so that the accident of accidental stabbing is avoided, hidden dangers of blood pollution caused by the accident is avoided, and patients can assuredly use the remaining needle safely.
Description
Technical field
This utility model relates to a kind of endovascular medical apparatus and instruments that is applicable to, the novel remaining needle that particularly a kind of anti-needle point is stabbed.
Background technology
In the prior art; Remaining needle includes needle tubing assembly and conduit tube component, the needle stand that the catheter block that conduit tube component includes soft conduit and is connected with conduit one end, needle tubing assembly include needle tubing and be connected with needle tubing one end; Needle tubing passes catheter block and is inserted in the catheter core chamber, and exposes needle point.During use, at first will have the puncture needle tubing puncture intravasation of conduit, and the application of force together sends conduit and needle tubing into the blood vessel depths, A/C seat is on the other hand guaranteed catheter retaining in blood vessel afterwards, another pull moving needle stand with the drive needle tubing away from conduit tube component.Owing to remaining needle mainly is useful in medical applications, needle tubing is removed pin from soft conduit after, it is directly exposed outside that the needle point of band blood and needle tubing have no parcel, is easy to accident and stabs accident, has blood-borne hidden danger.
The utility model content
The purpose of this utility model is to provide a kind of needle point that can prevent to expose the novel remaining needle of the accident of stabbing according to the weak point of prior art.
The purpose of this utility model realizes through following approach:
The novel remaining needle that anti-needle point is stabbed includes needle tubing assembly and conduit tube component, the catheter block that conduit tube component includes soft conduit and is connected with conduit one end; The needle stand that the needle tubing assembly includes needle tubing and is connected with needle tubing one end, needle tubing passes catheter block and is inserted in the catheter core chamber, and exposes needle point; Its structural feature is, also includes safety slide and spacing litter, and safety slide includes first connecting portion, second connecting portion and grips handle; The first connecting portion connecting duct seat, second connecting portion connects needle stand, grips handle in the form of sheets; First connecting portion, grip handle, second connecting portion connects in regular turn, its axis inner chamber connects, the lamellar face that grips handle is perpendicular to axial plane in this; On have sliding tray; One end of spacing litter is fixedly connected with needle stand, and the other end passes sliding tray and freely extends to tip position along the needle tubing direction, and tail end has security card slot.
During use; The needle tubing that will have conduit earlier is punctured in the blood vessel, fixedly grips the position of handle then, the pulled backwards needle stand; Driving spacing litter slides backward in the sliding tray of safety slide; Sliding tray up to safety slide gets in the security card slot of spacing litter tail end, separates being connected of first connecting portion and catheter block, conduit tube component is put stayed on the puncture position.This moment, needle point submerged in the axis inner chamber of safety slide; And safety slide receives the restriction of the security card slot of spacing litter tail end, can't move again, safety envelope needle point; It is no longer exposed; Avoid the accident of stabbing that meets accident, remove the blood-borne hidden danger of therefore bringing, guaranteed that doctors and patients can safe use remaining needle.
This utility model can further be specially:
First connecting portion of safety slide is a kind of installation base, and the longitudinal section is a kind of taper, and it is nested in the catheter block one end inner chamber and realizes being connected with catheter block.
Second connecting portion is a kind of square member, and middle axocoel is placed around needle stand and connects on the end of needle tubing.
Like this, meet the instructions for use of medical retention pin and medical personnel's use habit.
Safety slide also includes a kind of anti-rotation member, and it is a U matrix columnar structure, is installed in first connecting portion below, and U type bottom is installed on the end face that first connecting portion and second connecting portion be connected to form, and U type both sides rod member extends towards the needle tubing direction; Left-right symmetric has a kind of lug on the corresponding catheter block end, and lug is positioned at above the both sides rod member of U type anti-rotation member when catheter block is connected with first connecting portion.
Like this, in use conduit tube component can not receive external force influence and rotate, and has guaranteed that safety uses pin.
Further, above the middle part of the both sides rod member of U type anti-rotation member or tail end, has spacing preiection.
Like this; Get into the root of this U type anti-rotation member when the lug of catheter block after, this spacing preiection can prevent that catheter block from deviating from first connecting portion, directly realizes being connected of catheter block and first connecting portion; And not needing to make in addition connecting elements, organization plan is simple, easy to be realized.
The catheter block top of this moment is equipped with a kind of separation ear pushing, and its vertical distribution is on the position at catheter block middle part.
Like this, catheter block and the first pontes from the time, can realize through the application of force in this separations ear pushing, be convenient to operate.
The security card slot of spacing litter includes prevents breaking away from convex clip and prevents back sliding catch, and anti-disengaging convex clip is positioned on the tail end of litter, on the litter of anti-disengaging convex clip front end sheet type is set and prevents back sliding catch, and this catch and litter bearing of trend form acute angle.
Anti-ly like this break away from convex clip and prevent back the cunning catch and be slightly larger than the space that safety slide grips handle thickness between the two just to have formed security card slot; Be a kind of elastic component owing to prevent back the secured fashion of sliding catch, when the sliding tray of safety slide prevented back sliding catch through being somebody's turn to do, this catch can be under the restriction of sliding tray to litter near; Make safety slide can fall into this security card slot smoothly; Prevent back afterwards sliding catch homing, have certain distance between its end and the litter, make this distance add that the width of litter own has surpassed the groove width of sliding tray; The anti-simultaneously height that breaks away from convex clip is also greater than the groove width of sliding tray; Cause safety slide to be limited in enveloping needle point between convex clip and the catch, and no longer mobile.
Spacing litter includes two litter, and its symmetry is installed in the remaining needle needle ingot shaft on two sides, and corresponding gripping of safety slide has these two litter of two sliding tray ring sets on the handle.
The litter of symmetrical structure can the balance remaining needle operation, make to operate more easyly, quick that simultaneously, the litter that is positioned at the needle tubing both sides can not block medical personnel's sight line, is convenient to execute pin.
Litter is divided into straight pole and tail pole; The upper side of straight pole is parallel on the remaining needle axial plane with needle tubing; Downside is by needle stand part to the gradually narrow Yangtze River Delta shape of tail pole direction, and then along curved being upturned of straight pole bearing of trend, the inboard of litter is provided with strengthening rib strip to the tail pole.
The straight pole of litter and tail pole structure is in order to make litter and needle tubing on upper-lower position, keep certain distance, when being convenient to puncture, and the needle tubing intravasation that can puncture smoothly, and can not receive stopping of litter.The inboard strengthening rib strip of litter can be used as the guide rail between safety slide and the litter.
The fixed sidepiece of spacing litter and needle stand is provided with and pushes away handle, and this pushes away handle and grips the parallel distribution of handle.
During use, behind the puncture blood back, can forefinger be pinned this and push away handle needle tubing and conduit are pushed to the blood vessel depths, forefinger withstands and grips handle then, and this pushes away handle and needle stand is mobile backward thumb and middle finger clamping.
The needle stand rear sides has a sealed cavity, and the needle tubing tail end is arranged in the sealing cavity, and its official jargon is communicated with it, and the sealed cavity rear end is provided with a kind of exhaust joint, and the sealing cavity is in communication with the outside through this exhaust joint.
Venting plug in the exhaust joint is a gas-permeable, liquid-impermeable, keeps the pressure in the sealed cavity consistent with the external world, behind retained needle puncture; Blood back can get in the sealed cavity via needle tubing; At this moment, the needle stand rear sides adopts transparent material to process, and transparent window perhaps is set up; Be convenient to medical personnel and observe blood back, confirm the puncture situation.
In sum, the novel remaining needle that this utility model provides a kind of anti-needle point to stab, its safety slide is provided with the coating inner chamber; Spacing litter is as the guide rail and the stopping means of safety slide, during use, along with the relative position of spacing litter and safety slide moves; Safety slide is moved in the security card slot; This moment, the coating inner chamber of safety slide can envelope needle point, and it is no longer exposed, and avoided the accident of stabbing that meets accident; Remove the blood-borne hidden danger of therefore bringing, guaranteed that doctors and patients can safe use remaining needle.
Description of drawings
The structural representation of novel remaining needle of stabbing for the said anti-needle point of this utility model shown in Figure 1 is for sketch map representes that conveniently this figure has omitted the litter of a side;
The structural representation of novel remaining needle of stabbing shown in Figure 2 for the said anti-needle point of this utility model, the side structure of the main expression of this figure litter;
Novel remaining needle structural representation of stabbing for the said anti-needle point of this utility model shown in Figure 3, this figure are the vertical view of Fig. 2; The main structure that embodies spacing litter tail end security card slot;
The structural representation of security card slot in the novel remaining needle of stabbing shown in Figure 4 for the said anti-needle point of this utility model;
Shown in Figure 5 is the left view of Fig. 4, and shown in Figure 6 is the vertical view of Fig. 4.
Below in conjunction with embodiment this utility model is done and to be further described.
Specific embodiment
Most preferred embodiment:
With reference to accompanying drawing 1; The novel remaining needle that anti-needle point is stabbed includes needle tubing assembly, conduit tube component, safety slide and spacing litter, the catheter block 2 that conduit tube component includes soft conduit 1 and is connected with conduit one end; The needle stand 4 that the needle tubing assembly includes needle tubing 3 and is connected with needle tubing one end; Needle tubing passes catheter block and is inserted in the catheter core chamber, and exposes needle point
In conjunction with accompanying drawing 4, accompanying drawing 5 and accompanying drawing 6, safety slide includes first connecting portion 5, second connecting portion 6, grips handle 7 and anti-rotation member 8.First connecting portion 5 is a kind of installation base, and the longitudinal section is a kind of taper, and it is nested in realizes in the catheter block 2 one end inner chambers being connected with catheter block 2; Second connecting portion 6 is square member for a kind of profile, and middle axocoel is placed around needle stand 4 and connects on the end of needle tubings 3 and realize connecting needle stand 4; Grip handle 7 in the form of sheets, first connecting portion 5, grip handle 7, second connecting portion 6 connects in regular turn, its axis inner chamber 19 connects, the lamellar face that grips handle 7 is perpendicular to axial plane in this, both sides have sliding tray 9; Anti-rotation member 8 is a U matrix columnar structure; Be installed in first connecting portion, 5 belows; U type bottom is installed on the end face that first connecting portion 5 and second connecting portion 6 be connected to form, and U type both sides rod member extends towards needle tubing 3 directions, has spacing preiection 10 above middle part or the tail end.Left-right symmetric has a kind of lug 11 (see figure 1)s on catheter block 2 ends corresponding with this U type anti-rotation member 8, and lug 11 is positioned at above the both sides rod member of U type anti-rotation member 8 when catheter block 2 is connected with first connecting portion 5.
In addition, with reference to accompanying drawing 1, catheter block 2 tops are equipped with a kind of separation ear pushing 12, and its vertical distribution is on the position at catheter block 2 middle parts.Spacing litter and needle stand 4 fixed sidepieces are provided with and push away handle 13, and this pushes away handle 13 and grips handle 7 parallel distributions.Needle stand 4 rear sides have a sealed cavity 14; Needle tubing 3 tail ends are arranged in sealing cavity 14; And its official jargon is communicated with it, and sealed cavity 14 rear ends are provided with a kind of exhaust joint 15, and sealing cavity 14 is in communication with the outside through the venting plug in this exhaust joint 15.
With reference to accompanying drawing 3; Spacing litter includes two litter 16; Its symmetry is installed in the remaining needle needle ingot shaft on two sides, corresponding safety slide grip these two litter of two sliding tray ring sets on the handle 7, an end of litter is fixedly connected with needle stand 4; The other end passes sliding tray and freely extends to tip position along needle tubing 3 directions, and tail end has security card slot.
Security card slot includes anti-disengaging convex clip 17 and prevents back sliding catch 18, and the anti-convex clip 17 that breaks away from is positioned on the tail end of litter 16, sheet type is set on the litter of its front end prevents back sliding catch 18, and this catch and litter 16 bearing of trends form acute angle.Anti-break away from convex clip 17 and prevent back cunning catch 18 and be slightly larger than the space that safety slide grips handle 7 thickness between the two just to have formed security card slot.
As shown in Figure 2; Litter is divided into straight pole 161 and tail pole 162; The upper side of straight pole 161 is parallel on the remaining needle axial plane with needle tubing, and downside is by needle stand 4 parts to the gradually narrow Yangtze River Delta shape of tail pole 162 directions, 162 edges of tail pole are straight curved being upturned of pole 161 bearing of trends; The inboard of litter is provided with strengthening rib strip (seeing dotted portion), and this strengthening rib strip can be used as the guide rail of litter.
During use, the needle tubing that will have conduit earlier is punctured in the blood vessel, in blood back cavity, sees blood back; After confirming to puncture successfully, fixedly grip the position of handle, clamping pushes away handle and needle stand pulled backwards needle stand; Driving spacing litter slides backward in the sliding tray of safety slide; Sliding tray up to safety slide gets in the security card slot of spacing litter tail end, separates being connected of first connecting portion and catheter block at last, conduit tube component is put stayed on the puncture position.This moment, needle point submerged in the axis inner chamber of safety slide, and safety slide receives the restriction of the security card slot of spacing litter tail end, can't move again, safety envelope needle point, it is no longer exposed,
It is identical with prior art that this utility model is not stated part.
Claims (10)
1. the novel remaining needle that anti-needle point is stabbed includes needle tubing assembly and conduit tube component, the catheter block that conduit tube component includes soft conduit and is connected with conduit one end; The needle stand that the needle tubing assembly includes needle tubing and is connected with needle tubing one end, needle tubing passes catheter block and is inserted in the catheter core chamber, and exposes needle point; It is characterized in that also include safety slide and spacing litter, safety slide includes first connecting portion, second connecting portion and grips handle; The first connecting portion connecting duct seat, second connecting portion connects needle stand, grips handle in the form of sheets; First connecting portion, grip handle, second connecting portion connects in regular turn, its axis inner chamber connects, the lamellar face that grips handle is perpendicular to axial plane in this; On have sliding tray; One end of spacing litter is fixedly connected with needle stand, and the other end passes sliding tray and freely extends to tip position along the needle tubing direction, and tail end has security card slot.
2. the novel remaining needle that anti-needle point according to claim 1 is stabbed is characterized in that, first connecting portion of safety slide is a kind of installation base, and the longitudinal section is a kind of taper, and it is nested in the catheter block one end inner chamber and realizes being connected with catheter block; Second connecting portion is a kind of square member, and middle axocoel is placed around needle stand and connects on the end of needle tubing and realize being connected with needle stand.
3. the novel remaining needle that anti-needle point according to claim 1 is stabbed; It is characterized in that; Safety slide also includes a kind of anti-rotation member, and it is a U matrix columnar structure, is installed in first connecting portion below; U type bottom is installed on the end face that first connecting portion and second connecting portion be connected to form, and U type both sides rod member extends towards the needle tubing direction; Left-right symmetric has a kind of lug on the corresponding catheter block end, and lug is positioned at above the both sides rod member of U type anti-rotation member when catheter block is connected with first connecting portion.
4. the novel remaining needle that anti-needle point according to claim 3 is stabbed is characterized in that, above the middle part of the both sides rod member of U type anti-rotation member or tail end, has spacing preiection.
5. the novel remaining needle that anti-needle point according to claim 1 is stabbed is characterized in that, the catheter block top is equipped with a kind of separation ear pushing, and its vertical distribution is on the position at catheter block middle part.
6. the novel remaining needle that anti-needle point according to claim 1 is stabbed; It is characterized in that; The security card slot of spacing litter includes anti-disengaging convex clip and prevents back sliding catch; The anti-convex clip that breaks away from is positioned on the tail end of litter, on the litter of anti-disengaging convex clip front end sheet type is set and prevents back sliding catch, and this catch and litter bearing of trend form acute angle.
7. the novel remaining needle that anti-needle point according to claim 1 is stabbed; It is characterized in that; Spacing litter includes two litter, and its symmetry is installed in the remaining needle needle ingot shaft on two sides, and corresponding gripping of safety slide has these two litter of two sliding tray ring sets on the handle.
8. the novel remaining needle that anti-needle point according to claim 1 is stabbed; It is characterized in that; Litter is divided into straight pole and tail pole, and the upper side of straight pole is parallel on the remaining needle axial plane with needle tubing, and downside is by the needle stand part to the gradually narrow Yangtze River Delta shape of tail pole direction; Then along curved being upturned of straight pole bearing of trend, the inboard of litter is provided with strengthening rib strip to the tail pole.
9. the novel remaining needle that anti-needle point according to claim 1 is stabbed is characterized in that, the fixed sidepiece of spacing litter and needle stand is provided with and pushes away handle, and this pushes away handle and grips the parallel distribution of handle.
10. the novel remaining needle that anti-needle point according to claim 1 is stabbed; It is characterized in that; The needle stand rear sides has a sealed cavity, and the needle tubing tail end is arranged in the sealing cavity, and its official jargon is communicated with it; The sealed cavity rear end is provided with a kind of exhaust joint, and the sealing cavity is in communication with the outside through this exhaust joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120247908U CN202146485U (en) | 2011-07-14 | 2011-07-14 | Novel remaining needle with stabbing preventive needle tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120247908U CN202146485U (en) | 2011-07-14 | 2011-07-14 | Novel remaining needle with stabbing preventive needle tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202146485U true CN202146485U (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120247908U Expired - Lifetime CN202146485U (en) | 2011-07-14 | 2011-07-14 | Novel remaining needle with stabbing preventive needle tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202146485U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120934A (en) * | 2013-12-31 | 2015-12-02 | Saferwith有限公司 | Syringe needle assembly, and safety syringe and safety syringe apparatus using same |
| CN105561436A (en) * | 2016-02-19 | 2016-05-11 | 常熟市精亮微医疗器械科技有限公司 | Special transfusion needle |
| CN105561435A (en) * | 2016-02-19 | 2016-05-11 | 常熟市精亮微医疗器械科技有限公司 | Connection type infusion needle |
| CN105582594A (en) * | 2016-02-19 | 2016-05-18 | 常熟市精亮微医疗器械科技有限公司 | Pricking preventing infusion needle special for puncture type connecting piece |
-
2011
- 2011-07-14 CN CN201120247908U patent/CN202146485U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120934A (en) * | 2013-12-31 | 2015-12-02 | Saferwith有限公司 | Syringe needle assembly, and safety syringe and safety syringe apparatus using same |
| CN105120934B (en) * | 2013-12-31 | 2018-03-30 | Saferwith有限公司 | Syringe needle head assembly and the safety injector and safety syringe apparatus using the component |
| CN105561436A (en) * | 2016-02-19 | 2016-05-11 | 常熟市精亮微医疗器械科技有限公司 | Special transfusion needle |
| CN105561435A (en) * | 2016-02-19 | 2016-05-11 | 常熟市精亮微医疗器械科技有限公司 | Connection type infusion needle |
| CN105582594A (en) * | 2016-02-19 | 2016-05-18 | 常熟市精亮微医疗器械科技有限公司 | Pricking preventing infusion needle special for puncture type connecting piece |
| CN105582594B (en) * | 2016-02-19 | 2020-06-12 | 鹰潭荣嘉集团医疗器械实业有限公司 | Special infusion needle for puncture-type connecting piece capable of preventing needle prick |
| CN105561436B (en) * | 2016-02-19 | 2020-06-23 | 江苏蔚百世医疗器械有限公司 | Special transfusion needle |
| CN105561435B (en) * | 2016-02-19 | 2020-07-14 | 山东朱氏药业集团有限公司 | Connection type transfusion needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |
|
| CX01 | Expiry of patent term |