CN204637160U - The remaining needle of double flute seam protective sleeve - Google Patents
The remaining needle of double flute seam protective sleeve Download PDFInfo
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- CN204637160U CN204637160U CN201520065729.7U CN201520065729U CN204637160U CN 204637160 U CN204637160 U CN 204637160U CN 201520065729 U CN201520065729 U CN 201520065729U CN 204637160 U CN204637160 U CN 204637160U
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- needle
- sleeve
- rabbet joint
- protective sleeve
- sliding sleeve
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Abstract
This utility model relates to one and is applicable to endovascular medical apparatus and instruments, particularly a kind of remaining needle of double flute seam protective sleeve of the anti-blood stains dye of anti-needle pricks in clinical treatment, comprise needle tube protecting sleeve, conduit tube component and puncture needle tubing assembly, needle stand is fixed with operation fin, catheter block side direction has outward extending indwelling passage, its composition main points are: needle tube protecting sleeve is an elongated hollow housing, two side has the certain length line of rabbet joint, line of rabbet joint front opening, rear end or opening or blind resistance, wherein a line of rabbet joint is corresponding with operation fin also can hold the joint operating fin and needle stand, another line of rabbet joint is corresponding with indwelling passage also can hold indwelling passage.Tool has the following advantages: no matter be all can implement effectively protection to needle tubing and needle point in real time before needle tubing puncture uses or after puncture use, prevent during needle tubing subsequent treatment and surprisingly hurt sb.'s feelings and blood contamination environment, and, to the structure of existing puncture needle and puncture occupation mode substantially without changing, practical, easy to utilize.
Description
Technical field
This utility model relates to one and is applicable to endovascular medical apparatus and instruments, particularly a kind of remaining needle of double flute seam protective sleeve of the anti-blood stains dye of anti-needle pricks in clinical treatment.
Background technology
In order to be inserted smoothly in patient's blood vessel by conduit in clinical treatment, existing multiple puncture technique is applied in clinical treatment at present, and as shown in Figure 1, remaining needle is made up of needle tube protecting sleeve, conduit tube component and puncture needle tubing assembly typical technology.Needed first needle tube protecting sleeve to be taken to put aside before puncture, after puncture and intubation success, withdraw from puncture needle tubing, because protective sleeve internal diameter is smaller, cannot be inserted on needle stand, and protective sleeve is recovered needle stand, also more dangerous, likely thorn is to oneself, thus medical worker will use the puncture needle tubing withdrawn from directly to insert in discarded box usually, needle tubing like this and needle point have no protection and directly outside exposed, clear up medical worker, when destroying used needle tubing assembly, be easy to accidental puncture people and be subject to infectious disease threat, also pollute the environment with blood again in needle tubing simultaneously.
Summary of the invention
The purpose of this utility model is to overcome weak point of the prior art, and provides a kind of at the forward and backward needle tubing that all can cover of puncture use, the remaining needle of the double flute seam protective sleeve of Anti-stabbing, anti-needle tubing blood contamination.
The purpose of this utility model is realized by following approach:
The remaining needle of double flute seam protective sleeve, comprise needle tube protecting sleeve, conduit tube component and puncture needle tubing assembly, needle stand is fixed with operation fin, catheter block side direction has outward extending indwelling passage, its composition main points are: needle tube protecting sleeve is an elongated hollow housing, two side has the certain length line of rabbet joint, line of rabbet joint front opening, rear end or opening or blind resistance, wherein a line of rabbet joint is corresponding with operation fin also can hold the joint operating fin and needle stand, another line of rabbet joint is corresponding with indwelling passage also can hold indwelling passage, needle tube protecting sleeve rear portion is then connected with needle stand or needle tubing seat or needle stand and needle tubing seat sliding sleeve, needle tube protecting sleeve from remaining needle rear end cover be inserted into and forward slip until needle point is covered completely in its front portion.
Like this, remaining needle covers needle point before using.Before puncturing; first slide backward needle tube protecting sleeve to needle point and needle tubing exposed, then carry out puncture procedure, when after puncture and intubation success; pull needle stand backward; withdraw from needle tubing assembly, needle stand slides along protective sleeve inwall and the line of rabbet joint, the needle tube protecting sleeve until needle point submerges completely; now needle stand slides end in protective sleeve; continue pull operation fin and needle tube protecting sleeve backward again, needle stand moves after driving protective sleeve and is finally separated with conduit tube component, completes and removes pin operation.The complete protected cover of needle tubing wrapped up, and prevents during needle tubing subsequent treatment and surprisingly hurts sb.'s feelings and blood contamination environment.
Article two, the setting of the line of rabbet joint, make the front portion of needle tube protecting sleeve have a kind of function of elastic clip, its front end can close because of elasticity, thus better protects needle point.
The purpose of this utility model can also be realized by following approach.
Between needle tube protecting sleeve and needle stand or and operation fin between or and needle tubing seat between be provided with a kind of end point of travel card and touch device.
This trip end points card touches device and comprises that front travel end points card touches device, middle end point of travel card touches device and rear end point of travel card touches device; front travel end points card touch the corresponding needle tube protecting sleeve of device from remaining needle rear end cover be inserted into and forward slip until its front portion covers the position of needle point completely; middle end point of travel card touches the corresponding needle tube protecting sleeve of device and slides backwards on needle point and the exposed position of needle tubing, and rear end point of travel card touches the position that needle tubing that device correspondence punctured recession submerges in needle tube protecting sleeve completely.
This card touches prompting that device puts in place for travel position and temporary transient location between the two and fixing, and in prior art, common relevant concrete card touches device, is below more suitable one:
Card touches device and is made up of a kind of convex clamping point of mutual coupling and groove, and convex clamping point and groove lay respectively in the card contact element of needle tube protecting sleeve and correspondence, this card contact element or needle stand or operation fin or needle tubing seat.
Needle tubing assembly is set up a coaxial spacing ring in needle stand periphery, this spacing ring or hoop close in a domain or hoop interrupts in a kind of most ring sheet, and needle tube protecting sleeve cover is through between this spacing ring and solid needle stand.
Existence due to the line of rabbet joint makes needle tube protecting sleeve regular not in a circumferential direction; in order to allow needle tube protecting sleeve before puncture; on successively surrender sheath to protective sleeve, convex clamping point reliably can snap in catheter block outer wall pressed on ring segmentation groove; complete the card that middle end point of travel card touches device and touch operation, this spacing ring is set especially.
Needle tube protecting sleeve is a slim strip housing, tubular shell is injection molded into by medical material, housing both sides respectively offer the different rectangle line of rabbet joint of a width respectively, wherein the side line of rabbet joint is wider, be convenient to the housing of protective sleeve through catheter block upper channel, the opposite side line of rabbet joint is narrow, be convenient to mate through needle stand with needle stand upper hopper chute, line of rabbet joint rear end arranges one or two elasticity convex clip near bottom land place, collar row object between two lines of rabbet joint defines two panels flexure strip, two flexure strips close up into duckbill, flexure strip medial wall arranges a kind of symmetrical convex clamping point, convex clip size is mated with catheter block upper groove, be convenient to locking, distance rear end certain distance is provided with the catheter block outer wall of conduit tube component the symmetrical ring segmentation groove with one fixed width that on the flexure strip with protective sleeve, convex clip mates, during convex clamping point on this ring segmentation groove and flexure strip medial wall forms, end point of travel card touches device, the needle stand of needle tubing assembly is then made up of the needle stand of operation fin and revolving body, needle stand periphery size and protective sleeve inner chamber face of cylinder matched in clearance, middle has a solid pin hole, between operation fin and needle stand, coupling part arranges upper and lower symmetrical sliding tray, sliding tray radial width is mated with protective sleeve wall thickness, at the upper and lower bottom land in sliding tray rear portion away from operation fin, one rectangle locking groove is respectively set, groove size is mated with elasticity convex clip on protective sleeve rear end, this locking groove therewith rear end point of travel card of elasticity convex clip composition touches device.
Needle tube protecting sleeve can also be a kind ofly be nested in telescopic protective cover together by two joint sliding sleeves, and the slip line of rabbet joint on each sliding sleeve overlaps, and stretches after putting in place, and device clamping is touched by a kind of card in the end of adjacent two sliding sleeves, and covers needle tubing completely.
Telescopic protective cover can the overall dimensions of compact remaining needle.And the tactile device of card makes sliding sleeve keep extended configuration.
A kind of positioning apparatus for circumferential direction of locating mutual circumferential position is also provided with between adjacent two sliding sleeves.
Further specifically:
Needle tube protecting sleeve is made up of outer sliding sleeve and inner sliding sleeve, interior outer sliding sleeve all offers the slip line of rabbet joint, inner sliding sleeve front end is provided with the annular external flange of male half coupling formula, outer sliding sleeve follower head is provided with the inner stopper formula circular inner ledge mated therewith, enter to be arranged at intervals with radial prominent convex convex clip in the axial direction of the annular external flange on inner sliding sleeve, enter interval in this and can hold outer sliding sleeve inward flange, this convex clip rear end face is arranged for ease of the inclined-plane that inward flange gets over, this convex clip front end face is arranged for ease of the vertical plane of jam inward flange, this outward flange, inward flange and convex clip composition card touch device.
Further specifically:
Outer sliding sleeve at rear intussusception mutually at front, inner sliding sleeve, outer sliding sleeve is provided with two corresponding with operation fin and indwelling passage respectively lines of rabbet joint, and inner sliding sleeve is provided with the line of rabbet joint corresponding with operating fin.
Like this, mutually be nested in interior outer sliding sleeve together from remaining needle rear end cover be inserted into and forward slip until needle point is covered completely in outer sliding sleeve front portion, inner sliding sleeve now can be allowed to stop at indwelling passage, the line of rabbet joint corresponding with operating fin so only need be set on inner sliding sleeve and without the need to arranging the line of rabbet joint corresponding with indwelling passage, otherwise just must be the same with outer sliding sleeve, arrange simultaneously respectively with operation fin and the line of rabbet joint corresponding to indwelling passage.
Further specifically:
Radial prominent convex convex clip on above-mentioned inner sliding sleeve, the radial dimension at its place, top is slightly larger than outer sliding sleeve internal diameter, and outer sliding sleeve leading section is provided with convex clip coupling therewith also can subside the groove of this convex clip, and this convex clip therewith groove forms positioning apparatus for circumferential direction again.
Its operation is such, before puncturing, first slide backward outer sliding sleeve to needle point and needle tubing exposed, carry out puncture procedure again, when after puncture and intubation success, pull needle stand backward, withdraw from needle tubing assembly, needle stand slides along inner sliding sleeve inwall and the line of rabbet joint, needle stand touches inner sliding sleeve rear end elasticity and stops card release, inner sliding sleeve is driven to slide at outer sliding sleeve inner chamber, until inner sliding sleeve rear end and outer sliding sleeve rear end engage mutually, and needle stand also slips into inner sliding sleeve rear end to going out groove, needle point submerges needle tube protecting sleeve completely, now needle stand and protective sleeve slide and terminate, continue pull operation fin and needle tube protecting sleeve backward again, needle stand moves after driving protective sleeve and is finally separated with conduit tube component, complete and remove pin operation.The complete protected cover of needle tubing wrapped up, and prevents during needle tubing subsequent treatment and surprisingly hurts sb.'s feelings and blood contamination environment.
In sum, this utility model compared to existing technology tool has the following advantages: no matter be all can implement effectively protection to needle tubing and needle point in real time before needle tubing puncture uses or after puncture use, prevent during needle tubing subsequent treatment and surprisingly hurt sb.'s feelings and blood contamination environment, and, to the structure of existing puncture needle and puncture occupation mode substantially without changing, practical, easy to utilize.
Accompanying drawing explanation
Fig. 1 is a kind of containing needle structure schematic diagram in prior art;
Fig. 2 is the structural representation axonometric chart of the remaining needle of double flute described in the utility model seam protective sleeve;
Fig. 3 is the structural representation sectional view of the remaining needle of double flute described in the utility model seam protective sleeve;
Fig. 4 is that the remaining needle of double flute described in the utility model seam protective sleeve is in the structural representation axonometric chart that middle end point of travel card touches device;
Fig. 5 is that the remaining needle of double flute described in the utility model seam protective sleeve is in the structural representation axonometric chart that rear end point of travel card touches device;
Fig. 6 is that the remaining needle of double flute described in the utility model seam protective sleeve is in the structural representation sectional view that rear end point of travel card touches device;
Fig. 7 is that the right axle of needle tube protecting sleeve in the remaining needle of double flute described in the utility model seam protective sleeve surveys direction structure schematic isometric;
Fig. 8 is that the left axle of needle tube protecting sleeve in the remaining needle of double flute described in the utility model seam protective sleeve surveys direction structure schematic isometric;
Fig. 9 is the needle tube protecting sleeve structural representation sectional view in the remaining needle of double flute described in the utility model seam protective sleeve;
Figure 10 is needle tubing assembly (removal needle tubing) the structural representation axonometric chart in the remaining needle of double flute described in the utility model seam protective sleeve;
Figure 11 is the needle tubing modular construction diagrammatic side view in the remaining needle of double flute described in the utility model seam protective sleeve;
Figure 12 is needle tubing assembly (removal needle tubing) the structural representation axonometric chart in the remaining needle of double flute seam protective sleeve described in this utility model embodiment two;
Figure 13 is that the remaining needle of the best described double flute seam protective sleeve of this utility model is in the structural representation sectional view that puncture uses front state;
Figure 14 is the structural representation axonometric chart in a kind of axle survey of the outer sliding sleeve direction in the remaining needle of double flute seam protective sleeve described in this utility model most preferred embodiment;
Figure 15 is the structural representation axonometric chart in the outer sliding sleeve another kind of axle survey direction in the remaining needle of double flute seam protective sleeve described in this utility model most preferred embodiment;
Figure 16 is the inner sliding sleeve structural representation axonometric chart in the remaining needle of double flute seam protective sleeve described in this utility model most preferred embodiment;
Figure 17 is the structural representation sectional view that the remaining needle of the best described double flute seam protective sleeve of this utility model is in state when puncture uses;
Figure 18 is that the remaining needle of the best described double flute seam protective sleeve of this utility model is in the structural representation sectional view using rear needle stand and protective sleeve and conduit tube component released state;
Below in conjunction with accompanying drawing, more detailed description is carried out to this utility model.
Detailed description of the invention
Embodiment 1:
With reference to Fig. 2, Fig. 3, the remaining needle of double flute seam protective sleeve, comprise needle tube protecting sleeve 1, conduit tube component 2 and puncture needle tubing assembly 3, needle tubing is through elasticity barriers, and pass through conduit cavity, it is outside exposed that needle point passes catheter tip, needle stand is fixed with operation fin, catheter block side direction has outward extending indwelling passage 2.1, needle tube protecting sleeve 1 is an elongated hollow housing, two side has the certain length line of rabbet joint, line of rabbet joint front opening, the blind resistance in rear end, wherein a line of rabbet joint is corresponding with operation fin also can hold operation fin, another line of rabbet joint is corresponding with indwelling passage 2.1 also can hold indwelling passage, needle tube protecting sleeve 1 rear portion is then connected with needle stand or needle tubing seat or needle stand and needle tubing seat sliding sleeve, needle tube protecting sleeve from remaining needle rear end cover be inserted into and forward slip until needle point is covered completely in its front portion.
With reference to Fig. 6, Fig. 7, Fig. 8 and Fig. 9, protective sleeve 1 is a slim strip housing, it was injection molded into tubular shell by medical material before this, housing both sides respectively offer the different rectangle line of rabbet joint of a width respectively, wherein the side line of rabbet joint 1.1 is wider, be convenient to the housing (i.e. indwelling passage) 2.1 of protective sleeve through catheter block upper channel, line of rabbet joint one end open, the opposite side line of rabbet joint 1.2 is narrow, be convenient to mate through needle stand with sliding tray on needle stand (namely operating fin), line of rabbet joint one end and the same side opening of the line of rabbet joint 1.1, line of rabbet joint rear end arranges one or two to surface elastic convex clip 1.3, convex clip rear end face 1.3.1 is perpendicular to housing axis, with bottom land, there is certain distance.As which form two panels flexure strip 1.4 and 1.5, after protective sleeve manufactures molding, two flexure strips close up into duckbill, and flexure strip like this becomes has certain elastic intermediate plate.Flexure strip medial wall arranges a symmetrical convex clamping point or snap ring section 1.6; convex clip size is mated with catheter block upper groove 2.2; be convenient to locking; distance rear end certain distance is provided with the catheter block outer wall of conduit tube component 2 the symmetrical ring segmentation groove 2.2 with one fixed width that on the flexure strip with protective sleeve, convex clip mates, during this ring segmentation groove 2.2 and the convex clamping point 1.6 on flexure strip medial wall form, end point of travel card touches device.
With reference to Fig. 4, middle end point of travel card touches the corresponding needle tube protecting sleeve of device and slides backwards on needle point and the exposed position of needle tubing.
With reference to Figure 10 and Figure 11; the needle stand of needle tubing assembly 3 is then made up of the needle stand 3.2 of operation fin 3.1 and revolving body; needle stand 3.2 periphery size and protective sleeve inner chamber face of cylinder matched in clearance; middle has a solid pin hole 3.2.1; between operation fin and solid needle stand, coupling part arranges upper and lower symmetrical sliding tray 3.3; sliding tray width mates with protective sleeve wall thickness; respectively arrange a rectangle locking groove 3.4 at the upper and lower bottom land in sliding tray rear portion away from operation fin, groove size is mated with elasticity convex clip 1.3 on protective sleeve rear end.This locking groove 3.4 therewith elasticity convex clip 1.3 forms rear end point of travel card and touches device.
With reference to Fig. 5 and Fig. 6, rear end point of travel card touches the position that the corresponding needle tubing having punctured recession of device submerges in needle tube protecting sleeve completely.Shown in figure; not only locking groove 3.4 has blocked with elasticity convex clip 1.3 and has touched, and the needle tubing of recession submerges needle tube protecting sleeve 1 completely, and needle tube protecting sleeve front end is also closed in duckbill; and needle tubing assembly, needle tube protecting sleeve are also separated with hub assemblies by operation fin that continue post-tensioning.
Pin described in the utility model, the remaining needle that cover partition type has a protective sleeve is assembling like this: conduit tube component and needle tubing assembly assembling good after, strut elastic clip on protective sleeve, insert from needle tubing assembly rear end, on protective sleeve, the narrow line of rabbet joint is along entering sliding tray on needle stand, continue to insert forward, offset at the bottom of the housing and sipes slot of catheter block upper channel, now, decontrol protective sleeve elastic clip external support force, intermediate plate closes up, needle tubing and conduit are all comprised in protective sleeve intermediate plate, because protective sleeve first half is duckbill, without in external force situation after closing up, protective sleeve can not exit, remaining needle like this before use needle point and conduit is protected, protective sleeve rear end and needle tubing assembly rear end maintain an equal level simultaneously, remaining needle length is the same with typical technology, reach packaging and transport and need not spend more expense object.During use; first hold operation fin on the other hand, another hands pulls protective sleeve backward, and protective sleeve slides along needle stand upper hopper chute; protective sleeve upper clip is ripped by catheter block outer wall simultaneously; slide into catheter block upper groove ring section when intermediate plate epirelief is stuck on catheter block outer wall, convex clip, under intermediate plate elastic reaction, slips into groove; stop pulling protective sleeve again; now, needle point and conduit all expose, and are convenient to the operation of following puncture and intubation.When putting pipe success, hold conduit tube component on the other hand motionless, another hands grips operation fin and withdraws from needle tubing backward, because between protective sleeve and catheter block outer wall, clamping forms cylinder chamber, needle stand slides at cylinder intracavity, fin also slides in the line of rabbet joint simultaneously, be slidably matched because needle stand revolving body outer surface and the protective sleeve inwall face of cylinder are formed, needle stand can not swing relative to protective sleeve, so make needle stand can only move along the line of rabbet joint backward, move to needle stand when touching narrow line of rabbet joint rear end elasticity convex clip, needle stand is moved after continuation, convex clip summit climbs into needle stand sliding tray, again backward convex clip under elastic force effect, slip into rectangular recess on needle stand sliding tray, needle stand rear end face also touches with at the bottom of the line of rabbet joint simultaneously, continue pull operation fin, needle stand drives protective sleeve to move backward, on protective sleeve intermediate plate, convex clip skids off catheter block upper groove, continue again to move backward, intermediate plate departs from catheter block, intermediate plate closes up, such puncture needle tubing is just comprised in protective sleeve, due to narrow line of rabbet joint rear end convex clip rear end face and axes normal, form to stop with cell wall in groove, needle tubing assembly would not be scurried out forward, reach parcel needle tubing, the object of the anti-blood stains dye of anti-pricking wound.
It is same as the prior art that the present embodiment does not state part.
Embodiment two:
With reference to Figure 12; needle tubing assembly 3; in order to allow needle tube protecting sleeve 1 before puncture; on successively surrender sheath to protective sleeve, convex clamping point 1.6 reliably can snap in catheter block outer wall pressed on ring segmentation groove 2.2; complete the card that middle end point of travel card touches device and touch operation; set up a coaxial spacing ring 3.5 in needle stand 3.2 periphery, this spacing ring or hoop close in a domain or hoop interrupts in a kind of most ring sheet, and needle tube protecting sleeve 1 cover is through between this spacing ring 3.5 and needle stand 3.2.
It is identical with embodiment one that the present embodiment does not state part.
Most preferred embodiment:
With reference to Figure 13 ~ Figure 18, needle tube protecting sleeve is a kind ofly nested in telescopic protective cover together by two joint sliding sleeves, and the slip line of rabbet joint on each sliding sleeve overlaps, and stretches after putting in place, and device clamping is touched by a kind of card in the end of adjacent two sliding sleeves, and covers needle tubing completely.
With reference to Figure 14, Figure 15 and Figure 16, needle tube protecting sleeve is made up of outer sliding sleeve 4 and inner sliding sleeve 5, interior outer sliding sleeve all offers the slip line of rabbet joint, inner sliding sleeve 5 front end is provided with the annular external flange 1.7 of male half coupling formula, outer sliding sleeve follower head is provided with the inner stopper formula circular inner ledge 1.8 mated therewith, enter to be arranged at intervals with radial prominent convex convex clip 1.9 in the axial direction of the annular external flange on inner sliding sleeve, enter interval in this and can hold outer sliding sleeve inward flange, this convex clip rear end face is arranged for ease of the inclined-plane that inward flange gets over, this convex clip 1.9 front end face is arranged for ease of the vertical plane of jam inward flange, this outward flange, inward flange and convex clip composition card touch device.Outer sliding sleeve 4 at rear intussusception mutually at front, inner sliding sleeve 5, outer sliding sleeve 4 is provided with two corresponding with operation fin and indwelling passage respectively lines of rabbet joint 1.1,1.2, and inner sliding sleeve 5 is provided with the line of rabbet joint 1.2 corresponding with operating fin.
With reference to Figure 13, be mutually nested in interior outer sliding sleeve together from remaining needle rear end cover be inserted into and forward slip until needle point is covered completely in outer sliding sleeve front portion, now inner sliding sleeve stops at indwelling passage.
With reference to Figure 15 and Figure 16, radial prominent convex convex clip 1.9 on above-mentioned inner sliding sleeve, the radial dimension at its place, top is slightly larger than outer sliding sleeve internal diameter, outer sliding sleeve leading section is provided with convex clip 1.9 therewith and mates and can subside the groove 1.9.1 of this convex clip 1.9, and this convex clip 1.9 therewith groove 1.9.1 forms positioning apparatus for circumferential direction again.
With reference to Figure 17; distance rear end certain distance is provided with the catheter block outer wall of conduit tube component 2 the symmetrical ring segmentation groove 2.2 with one fixed width that on the flexure strip with protective sleeve, convex clip mates, during this ring segmentation groove 2.2 and the convex clamping point 1.6 on medial wall, outer sliding sleeve 4 leading section form, end point of travel card touches device.Middle end point of travel card touches the corresponding outer sliding sleeve 4 of device and slides backwards on needle point and the exposed position of needle tubing.
With reference to Figure 18, rear end point of travel card touches the position that the corresponding needle tubing having punctured recession of device submerges in needle tube protecting sleeve completely.Shown in figure; not only locking groove 3.4 has blocked tactile with the elasticity convex clip 1.3 at inner sliding sleeve 5 rear portion; the needle tubing of recession submerges interior outer sliding sleeve completely; outward flange on outer inner sliding sleeve, inward flange and convex clip complete card and touch; and; the operation fin continuing post-tensioning also will allow convex clamping point 1.6 and ring segmentation groove 2.2 thread off, and needle tubing assembly, needle tube protecting sleeve are separated with hub assemblies.
Its operation is such, before puncturing, first slide backward outer sliding sleeve to needle point and needle tubing exposed, now, end point of travel card touches device to complete card tactile, carry out puncture procedure again, when after puncture and intubation success, pull needle stand backward, withdraw from needle tubing assembly, needle stand slides along inner sliding sleeve inwall and the line of rabbet joint, needle stand touches inner sliding sleeve rear end elasticity to be stopped card release and completes locking groove 3.4 and block tactile with elasticity convex clip 1.3, thus drive inner sliding sleeve to slide at outer sliding sleeve inner chamber, until the outward flange of inner sliding sleeve rear end and outer sliding sleeve rear end, inward flange and convex clip complete card and touch, needle point submerges needle tube protecting sleeve completely, now needle stand and protective sleeve slide and terminate, continue pull operation fin and needle tube protecting sleeve backward again, needle stand moves after driving protective sleeve and finally allows convex clamping point 1.6 and ring segmentation groove 2.2 thread off, realize being separated with conduit tube component, complete and remove pin operation.The complete protected cover of needle tubing wrapped up, and prevents during needle tubing subsequent treatment and surprisingly hurts sb.'s feelings and blood contamination environment.
It is identical with embodiment one that the present embodiment does not state part.
Claims (11)
1. the remaining needle of double flute seam protective sleeve, comprise needle tube protecting sleeve, conduit tube component and puncture needle tubing assembly, needle stand is fixed with operation fin, catheter block side direction has outward extending indwelling passage, it is characterized in that, needle tube protecting sleeve is an elongated hollow housing, two side has the certain length line of rabbet joint, line of rabbet joint front opening, rear end or opening or blind resistance, wherein a line of rabbet joint is corresponding with operation fin also can hold the joint operating fin and needle stand, another line of rabbet joint is corresponding with indwelling passage also can hold indwelling passage, needle tube protecting sleeve rear portion is then connected with needle stand or needle tubing seat or needle stand and needle tubing seat sliding sleeve, needle tube protecting sleeve from remaining needle rear end cover be inserted into and forward slip until needle point is covered completely in its front portion.
2. the remaining needle of double flute according to claim 1 seam protective sleeve, is characterized in that, between needle tube protecting sleeve and needle stand or and operation fin between or and needle tubing seat between be provided with a kind of end point of travel card and touch device.
3. the remaining needle of double flute seam protective sleeve according to claim 2, it is characterized in that, described end point of travel card touches device and comprises front travel end points card and touch device, middle end point of travel card touches device and rear end point of travel card touches device, front travel end points card touch the corresponding needle tube protecting sleeve of device from remaining needle rear end cover be inserted into and forward slip until its front portion covers the position of needle point completely, middle end point of travel card touches the corresponding needle tube protecting sleeve of device and slides backwards on needle point and the exposed position of needle tubing, rear end point of travel card touches the position that the corresponding needle tubing having punctured recession of device submerges in needle tube protecting sleeve completely.
4. the remaining needle of the double flute seam protective sleeve according to Claims 2 or 3; it is characterized in that; card touches device and is made up of a kind of convex clamping point of mutual coupling and groove; convex clamping point and groove lay respectively in the card contact element of needle tube protecting sleeve and correspondence, this card contact element or needle stand or operation fin or needle tubing seat.
5. the remaining needle of double flute seam protective sleeve according to claim 1; it is characterized in that; needle tubing assembly is set up a coaxial spacing ring in needle stand periphery; this spacing ring or hoop close in a domain or hoop interrupts in a kind of most ring sheet, and needle tube protecting sleeve cover is through between this spacing ring and solid needle stand.
6. the remaining needle of double flute seam protective sleeve according to claim 1, it is characterized in that, needle tube protecting sleeve is a slim strip housing, tubular shell is injection molded into by medical material, housing both sides respectively offer the different rectangle line of rabbet joint of a width respectively, wherein the side line of rabbet joint is wider, be convenient to the housing of protective sleeve through catheter block upper channel, the opposite side line of rabbet joint is narrow, be convenient to mate through needle stand with needle stand upper hopper chute, line of rabbet joint rear end arranges one or two elasticity convex clip near bottom land place, collar row object between two lines of rabbet joint defines two panels flexure strip, two flexure strips close up into duckbill, flexure strip medial wall arranges a kind of symmetrical convex clamping point, convex clip size is mated with catheter block upper groove, be convenient to locking, distance rear end certain distance is provided with the catheter block outer wall of conduit tube component the symmetrical ring segmentation groove with one fixed width that on the flexure strip with protective sleeve, convex clip mates, during convex clamping point on this ring segmentation groove and flexure strip medial wall forms, end point of travel card touches device, the needle stand of needle tubing assembly is then made up of the needle stand of operation fin and revolving body, needle stand periphery size and protective sleeve inner chamber face of cylinder matched in clearance, middle has a solid pin hole, between operation fin and needle stand, coupling part arranges upper and lower symmetrical sliding tray, sliding tray radial width is mated with protective sleeve wall thickness, at the upper and lower bottom land in sliding tray rear portion away from operation fin, one rectangle locking groove is respectively set, groove size is mated with elasticity convex clip on protective sleeve rear end, this locking groove therewith rear end point of travel card of elasticity convex clip composition touches device.
7. the remaining needle of double flute seam protective sleeve according to claim 1; it is characterized in that; needle tube protecting sleeve can also be a kind ofly be nested in telescopic protective cover together by two joint sliding sleeves; the slip line of rabbet joint on each sliding sleeve overlaps; after stretching, extension puts in place; device clamping is touched by a kind of card in the end of adjacent two sliding sleeves, and covers needle tubing completely.
8. the remaining needle of double flute seam protective sleeve according to claim 7, is characterized in that, be also provided with a kind of positioning apparatus for circumferential direction of locating mutual circumferential position between adjacent two sliding sleeves.
9. the remaining needle of double flute seam protective sleeve according to claim 7, it is characterized in that, needle tube protecting sleeve is made up of outer sliding sleeve and inner sliding sleeve, interior outer sliding sleeve all offers the slip line of rabbet joint, inner sliding sleeve front end is provided with the annular external flange of male half coupling formula, outer sliding sleeve follower head is provided with the inner stopper formula circular inner ledge mated therewith, enter to be arranged at intervals with radial prominent convex convex clip in the axial direction of the annular external flange on inner sliding sleeve, enter interval in this and can hold outer sliding sleeve inward flange, this convex clip rear end face is arranged for ease of the inclined-plane that inward flange gets over, this convex clip front end face is arranged for ease of the vertical plane of jam inward flange, this outward flange, inward flange and convex clip composition card touch device.
10. the remaining needle of double flute seam protective sleeve according to claim 9; it is characterized in that; outer sliding sleeve at rear intussusception mutually at front, inner sliding sleeve, outer sliding sleeve is provided with two corresponding with operation fin and indwelling passage respectively lines of rabbet joint, and inner sliding sleeve is provided with the line of rabbet joint corresponding with operating fin.
The remaining needle of 11. double flute seam protective sleeves according to claim 9; it is characterized in that; radial prominent convex convex clip on described inner sliding sleeve; the radial dimension at its place, top is slightly larger than outer sliding sleeve internal diameter; outer sliding sleeve leading section is provided with convex clip coupling therewith also can subside the groove of this convex clip, and this convex clip therewith groove forms positioning apparatus for circumferential direction again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065729.7U CN204637160U (en) | 2015-01-29 | 2015-01-29 | The remaining needle of double flute seam protective sleeve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065729.7U CN204637160U (en) | 2015-01-29 | 2015-01-29 | The remaining needle of double flute seam protective sleeve |
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| Publication Number | Publication Date |
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| CN204637160U true CN204637160U (en) | 2015-09-16 |
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| CN201520065729.7U Expired - Fee Related CN204637160U (en) | 2015-01-29 | 2015-01-29 | The remaining needle of double flute seam protective sleeve |
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| CN (1) | CN204637160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481776A (en) * | 2020-05-07 | 2020-08-04 | 普昂(杭州)医疗科技有限公司 | Needle device, and protection structure and protection method thereof |
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2015
- 2015-01-29 CN CN201520065729.7U patent/CN204637160U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481776A (en) * | 2020-05-07 | 2020-08-04 | 普昂(杭州)医疗科技有限公司 | Needle device, and protection structure and protection method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |