CN104707208A - Remaining needle with unilateral-seam protective sleeve - Google Patents
Remaining needle with unilateral-seam protective sleeve Download PDFInfo
- Publication number
- CN104707208A CN104707208A CN201510047817.9A CN201510047817A CN104707208A CN 104707208 A CN104707208 A CN 104707208A CN 201510047817 A CN201510047817 A CN 201510047817A CN 104707208 A CN104707208 A CN 104707208A
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- China
- Prior art keywords
- needle
- rabbet joint
- sleeve
- line
- card
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
Abstract
The invention relates to a medical instrument suitable for being applied into a blood vessel, in particular to a remaining needle with a unilateral-seam protective sleeve. The remaining needle with the unilateral-seam protective sleeve prevents a needle point from stabbing the blood vessel and prevents blood contamination. The remaining needle with the unilateral-seam protective sleeve comprises the needle tube protective sleeve, a tube guide assembly and a puncturing needle tube assembly. The needle tube protective sleeve is a long hollow shell. One side wall of the needle tube protective sleeve is provided with a sliding seam of a certain length. The front end of the sliding seam is open, and the rear end of the sliding seam is blocked or opened. The seam corresponds to an operation wing and can contain the connection portion between the operation wing and a needle base. The needle tube protective sleeve is inserted into the needle base from the rear end of the remaining needle in a sleeving mode, slides to a clamping and contacting device between the remaining needle and the needle base and is connected with the clamping and contacting device in a clamped and contact mode. The remaining needle with the unilateral-seam protective sleeve has the advantages that after the remaining needle is used for puncture, the needle tube and the needle point can be effectively protected, the situations that a person is accidentally hurt in the subsequent treatment process of the needle tube, and blood contaminates the environment are avoided, the structure of an existing puncturing needle and the puncturing mode are not changed basically, and the remaining needle is high in practicability and convenient to apply and popularize.
Description
Technical field
The present invention relates to one and be applicable to endovascular medical apparatus and instruments, particularly a kind of remaining needle of one-sided line of rabbet joint protective sleeve of anti-needle pricks anti-blood stains dye 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 object of the invention is to overcome weak point of the prior art, and provide a kind of at the forward and backward needle tubing that all can cover of puncture use, the remaining needle of the one-sided line of rabbet joint protective sleeve of Anti-stabbing, anti-needle tubing blood contamination.
The object of the invention is to be realized by following approach:
The remaining needle of one-sided line of rabbet joint protective sleeve, comprise needle tube protecting sleeve, conduit tube component and puncture needle tubing assembly, needle stand is fixed with operation fin, indwelling passage or be positioned at catheter block inner core or be positioned to pass through with catheter block side direction and to connect and on the side path extended, its composition main points are: needle tube protecting sleeve is an elongated hollow housing, one sidewall has the slip line of rabbet joint of certain length, slip line of rabbet joint front opening, rear end or blind resistance or opening, this line of rabbet joint is corresponding with operation fin also can hold the joint operating fin and needle stand, needle tube protecting sleeve from remaining needle rear end cover be inserted into needle stand and forward slip until therebetween card touch device card touch connect, the needle tubing assembly be separated with conduit tube component after puncture and needle tube protecting sleeve are under external force, front card touches device and departs from card and to touch and needle tube protecting sleeve continues forward slip until rear card therebetween touches device card touches and connect, now needle tube protecting sleeve covers needle point completely.
Like this, during puncture, hand-held fin band touches with needle tubing assembly, conduit tube component and card and synchronously carries out puncture operation forward at the needle tube protecting sleeve of needle tubing module back.When after puncture and intubation success; pull needle stand backward; withdraw from needle tubing assembly and needle tube protecting sleeve; after being separated with conduit tube component; the hands managing needle tubing assembly catches operation fin not loosen; another hands catches protective sleeve rearward end to push protective sleeve toward needle point direction; before this, card tactile device disengaging card touched; then line of rabbet joint wall is along the joint forward slip operating fin and needle stand; until rear card touches device card touch connection; now the complete sleeve of needle tubing is blinded by, and prevents during needle tubing subsequent treatment and surprisingly hurts sb.'s feelings and blood contamination environment.
Object of the present invention can also be realized by following approach.
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.
Touch device about card and also have following two kinds of preferred versions, Yi Zhongshi:
Before cover is inserted into the needle tube protecting sleeve of needle stand, end plug is connected to a kind of lid cover; this lid cover has the overcoat section of connecing and interior socket section; outer socket section is positioned at lid cover outer peripheral face, it protracts and is socketed with catheter block rear end coaxial; interior socket section is positioned at lid cover inner chamber; it is socketed to after-opening and with needle stand front end and forms card and touches device, and the capping of lid cover front end is coaxially arranged with can through the perforation of needle tubing.
Like this, needle tubing seat, catheter block and needle tube protecting sleeve all realize socket by this lid cover, and location is better each other.And by suitable being connected of elasticity, also the convenient card realizing the tactile device of card touches elasticity.
Another kind is:
Before cover is inserted into the needle tube protecting sleeve of needle stand, end plug is connected to a kind of lid cover, and needle tubing seat front end stretched through after this lid cover inner chamber and be socketed with the coaxial of catheter block rear end, and the machinery of this lid cover inner chamber needle tubing seat front end therewith coordinates the tactile device of socket composition card.
By suitable being connected of elasticity, also the convenient card realizing the tactile device of card touches elasticity.
Sleeve pipe as needle tube protecting sleeve is a slim cylindrical shell, sidewall offers the one fixed width rectangle line of rabbet joint, guiding rib shiding matching on the line of rabbet joint and needle stand, this guiding rib is the joint of interconnected operation fin and needle stand, line of rabbet joint one end open, convex clip is provided with inside the opening part line of rabbet joint, convex clip or single or opposite respectively establish one, convex clip front end face acutangulates inclined plane, be convenient to the respective slot more easily skidded off when pushing on needle stand, line of rabbet joint rearward end case inside arranges one to be stopped and convex clip, needle tubing assembly is then made up of the needle stand of operation fin and revolving body, needle stand periphery size and the protective sleeve inner chamber face of cylinder are slidably matched, centre has a solid pin hole, between operation fin and needle stand, the guiding rib of coupling part arranges upper and lower symmetrical sliding tray, sliding tray radial width is mated with protective sleeve wall thickness, in sliding tray front end, one groove is respectively set near the upper and lower bottom land in needle tubing place, this groove size is mated with sleeve pipe front end convex clip and block tactile device before forming, needle stand rear portion have an annular stop groove and guiding angle, and with the stopping after convex clip forms and block tactile device of line of rabbet joint rearward end.
Hub assemblies 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.
As the sleeve pipe of needle tube protecting sleeve also offering one or two guiding lines of rabbet joint, this guiding line of rabbet joint and original line of rabbet joint are symmetrical at circumferencial direction, needle stand have additional the guiding rib that the line of rabbet joint that leads therewith mates.
Like this, when sleeve pipe pushes, operation is more firm lighter.
Needle tube protecting sleeve is a kind ofly nested in telescopic protective cover together by two joint sliding sleeves or three 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:
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.
Also have another kind of positioning apparatus for circumferential direction:
Inner sliding sleeve rear end radial direction is prominent convex a kind of limiting card, it is a kind of Cornu Caprae seu Ovis shape that this limiting card or two are distributed in inner sliding sleeve circumferencial direction, outer sliding sleeve rear end inward flange is provided with limiting card coupling therewith and also can subsides the limited impression of this limiting card, this limiting card is limited impression composition positioning apparatus for circumferential direction therewith.
In sum, the present invention compared to existing technology tool has the following advantages: after retained needle puncture uses, effectively protection can be implemented in real time to needle tubing and needle point, 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 sectional view of the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention one, two, three, four;
Fig. 3 be the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention one, two, three, four be in rear card touch device card touch connection status structural representation sectional view;
Fig. 4 is the needle tube protecting sleeve structural representation axonometric chart in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention one, two;
Fig. 5 is the needle tube protecting sleeve structural representation sectional block diagram in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention one, two;
Fig. 6 is the needle tubing modular construction schematic isometric in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention one;
The right view of Fig. 7 to be needle tubing modular construction schematic front view Fig. 8 in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention one be Fig. 7;
Fig. 9 is the needle tubing modular construction schematic isometric in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention two;
Figure 10 is the needle tube protecting sleeve structural representation axonometric chart in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention three, four;
Figure 11 is the needle tubing modular construction schematic isometric in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention three;
Figure 12 is the needle tubing modular construction schematic isometric in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention four;
Figure 13 is the structural representation axonometric chart (having the indwelling passage passing through with catheter block side direction and connect) of the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 14 is the structural representation axonometric chart (indwelling passage is positioned at catheter block inner core) of the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 15 be the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five be in interior outer sliding sleeve be stretched over a state under structural representation three-dimensional cutaway view;
Figure 16 is the outer sliding sleeve structural representation three-dimensional cutaway view in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 17 is the outer sliding sleeve structural representation axonometric chart in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 18 is the outer sliding sleeve structural representation three-dimensional cutaway view in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 19 is the outer sliding sleeve front end face structural representation in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 20 is the outer sliding sleeve rear end face structural representation in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 21 is the inner sliding sleeve structural representation axonometric chart in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 22 is the inner sliding sleeve structural representation sectional view in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention five;
Figure 23 is the structural representation three-dimensional cutaway view of the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention six;
Figure 24 is the needle tube protecting sleeve structural representation three-dimensional cutaway view in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention six and most preferred embodiment;
Figure 25 is the needle tube protecting sleeve structural representation axonometric chart in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention six and most preferred embodiment;
Figure 26 is the lid nested structure schematic isometric in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention six;
Figure 27 is the lid nested structure schematic perspective sectional view in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention six;
Figure 28 is the structural representation axonometric chart being in needle tubing assembly, needle tube protecting sleeve and conduit tube component released state in the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention six;
Figure 29 is the structural representation axonometric chart that the remaining needle of one-sided line of rabbet joint protective sleeve described in the embodiment of the present invention six is in that needle tube protecting sleeve covers needle tubing state;
Figure 30 is the structural representation three-dimensional cutaway view of the remaining needle of one-sided line of rabbet joint protective sleeve described in preferred embodiment;
Figure 31 is the lid nested structure schematic isometric in the remaining needle of one-sided line of rabbet joint protective sleeve described in preferred embodiment;
Below in conjunction with accompanying drawing, more detailed description is carried out to the present invention.
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 3, conduit tube component 1 and puncture needle tubing assembly 2, 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, needle tube protecting sleeve 3 is sleeve pipes of an elongated hollow housing, one sidewall has the slip line of rabbet joint 3.1 of certain length, the slip line of rabbet joint 3.1 front opening, the blind resistance in rear end, this line of rabbet joint 3.1 is corresponding with operation fin 2.1 also can hold the joint operating fin 2.1 and needle stand 2.2, needle tube protecting sleeve 3 from remaining needle rear end cover be inserted into needle stand and forward slip until therebetween card touch device card touch connect, the needle tubing assembly 2 be separated with conduit tube component 1 after puncture and needle tube protecting sleeve 3 are under external force, front card touches device and departs from card and to touch and needle tube protecting sleeve continues forward slip until rear card therebetween touches device card touches and connect, now needle tube protecting sleeve covers needle point completely.
With reference to Fig. 4 and Fig. 5; needle tube protecting sleeve 3 is sleeve pipes of a slim cylindrical shell; sidewall offers the one fixed width rectangular slide line of rabbet joint 3.1, sliding tray 2.4 shiding matching on the slip line of rabbet joint and needle stand guiding rib, line of rabbet joint one end open; convex clip 3.2 is provided with inside the opening part line of rabbet joint; convex clip 3.2 can be single, and also can respectively establish one in opposite, convex clip front end face 3.2.1 is inclined at acute angles face; be convenient to more easily skid off needle stand upper groove when pushing, arrange one inside line of rabbet joint bottom shell and stop and convex clip 3.3.
With reference to Fig. 6, Fig. 7 and Fig. 8, needle tubing assembly 2 is by needle tubing (not shown in FIG.), the needle stand 2.2 of operation fin 2.1 and revolving body forms, needle stand 2.2 periphery size and the protective sleeve 3 inner chamber face of cylinder are slidably matched, middle has a solid pin hole, the guiding rib operating coupling part between fin 2.1 and needle stand 2.2 arranges upper and lower symmetrical sliding tray 2.4, sliding tray 2.4 radial width is mated with protective sleeve 3 wall thickness, in sliding tray 2.4 front end, one trapezoidal groove 2.3 is respectively set near the upper and lower bottom land in needle tubing place, groove 2.3 size is mated with protective sleeve 3 front end convex clip 3.2 and block tactile device before forming, needle stand 2.2 rear portion has an annular and stops and groove 2.5 and guiding angle 2.6, and convex clip 3.3 and form rear card with stopping of the protective sleeve line of rabbet joint 3.1 rearward end and touch device.
The remaining needle that pin of the present invention, cover partition type have protective sleeve is assembling like this: after conduit tube component 3 and needle tubing assembly 2 assembly are good; by protective sleeve 3 slotted openings end towards needle stand rear end; the line of rabbet joint aims at sliding tray on needle stand; insert sleeve pipe, obviously snap in needle stand upper groove (before namely shown in Fig. 2 the tactile state of card) to sleeve pipe convex clip of going forward.During use, when after puncture and intubation success, grip operation fin and withdraw from needle tubing backward, needle tubing assembly departs from conduit tube component together with sleeve pipe, grip not loosening of operation fin, continue to grip, another hands catches sleeve pipe rearward end to push sleeve pipe toward needle point direction, on sleeve pipe, slotted openings place convex clip departed from needle stand upper trapezoid groove before this, line of rabbet joint wall leads sliding tray forward slip on needle stand, until solid needle stand leads, angle climbs up convex clip bottom the sleeve pipe line of rabbet joint, convex clip snaps in needle stand stops and annular groove (the rear card shown in Fig. 3 touches state), needle tubing assembly would not be scurried out forward, sleeve pipe completely obscures needle tubing simultaneously, reach 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 Fig. 9; needle tubing assembly 2; move to cover in the process of needle point pushing forward relative to needle stand to allow needle tube protecting sleeve 3; can be more smooth-going; particularly before the anti-movement of propelling movement here, needle tube protecting sleeve 3 is subject to the swing of unexpected external force and departs from needle stand; a coaxial spacing ring 2.8 is set up in needle stand periphery; spacing ring 2.8 internal chamber wall and protective sleeve 3 outer wall shiding matching; this spacing ring or hoop close in a domain or hoop interrupts in a kind of most ring sheet, and needle tube protecting sleeve 3 cover is through between this spacing ring 2.8 and needle stand 2.2.
It is identical with embodiment one that the present embodiment does not state part.
Embodiment three:
With reference to Figure 10 and Figure 11; in order to when protective sleeve 3 pushes, operation is more firm lighter; as the sleeve pipe of needle tube protecting sleeve also offering two guiding lines of rabbet joint 3.4; this guiding line of rabbet joint 3.4 is symmetrical at circumferencial direction with original slip line of rabbet joint 3.1, needle stand has additional the guiding rib 2.7 that the line of rabbet joint 3.4 that leads therewith mates.
It is identical with embodiment one that the present embodiment does not state part.
Embodiment four:
With reference to Figure 12; needle tubing assembly 2; move to cover in the process of needle point pushing forward relative to needle stand to allow needle tube protecting sleeve 3; can be more smooth-going; particularly before the anti-movement of propelling movement here, needle tube protecting sleeve 3 is subject to the swing of unexpected external force and departs from needle stand; a coaxial spacing ring 2.8 is set up in needle stand periphery; spacing ring 2.8 internal chamber wall and protective sleeve 3 outer wall shiding matching; this spacing ring or hoop close in a domain or hoop interrupts in a kind of most ring sheet, and needle tube protecting sleeve 3 cover is through between this spacing ring 2.8 and needle stand 2.2.
It is identical with embodiment three that the present embodiment does not state part.
Embodiment five:
With reference to Figure 13 and Figure 14; needle tube protecting sleeve 3 be a kind of by outer sliding sleeve 4 and inner sliding sleeve 5 totally two joint sliding sleeves be nested in together with telescopic protective cover, the slip line of rabbet joint on each sliding sleeve overlaps, and stretches after putting in place; 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 15-Figure 22, inner sliding sleeve 5 front end is provided with the annular external flange 5.3 of male half coupling formula, outer sliding sleeve 4 follower head is provided with the inner stopper formula circular inner ledge 4.3 mated therewith, enter to be arranged at intervals with radial prominent convex convex clip 5.2 in the axial direction of the annular external flange 5.3 on inner sliding sleeve, enter interval in this and can hold outer sliding sleeve inward flange 4.3, this convex clip 5.2 rear end face 5.2.1 is arranged for ease of the inclined-plane that inward flange gets over, this convex clip 5.2 front end face is arranged for ease of the vertical plane of jam inward flange, and this outward flange 5.3, inward flange 4.3 and convex clip 5.2 composition card touches device.Radial prominent convex convex clip 5.2 on above-mentioned inner sliding sleeve 5, the radial dimension at its place, top is slightly larger than outer sliding sleeve 4 internal diameter, outer sliding sleeve 4 leading section is provided with convex clip 5.2 therewith and mates and can subside the groove 4.1 of this convex clip, and this convex clip 5.2 therewith groove 4.1 forms positioning apparatus for circumferential direction again.Inner sliding sleeve 5 rear end radial direction is prominent convex a kind of limiting card 5.4, this limiting card 5.4 is two altogether, and to be distributed in inner sliding sleeve 5 circumferencial direction be a kind of Cornu Caprae seu Ovis shape, outer sliding sleeve 4 rear end inward flange is provided with limiting card 5.4 therewith mate and can subside the limited impression 4.2 of this limiting card 5.4, this limiting card 5.4 therewith limited impression 4.2 forms another positioning apparatus for circumferential direction.
In, outer sliding sleeve is assembling like this: first inner sliding sleeve 5 is had elasticity convex clip 5.1 one end and have the insertion of polygon limited impression 4.2 one end from outer sliding sleeve 5, sliding tray on two sliding sleeves is kept to be sewn on the same side, push outer sliding sleeve 4 forward, outer sliding sleeve 4 rear end face is propped up when inner sliding sleeve 5 has Cornu Caprae seu Ovis shape protrusion limiting card 5.4, and adjust two sliding sleeve angle positions, to inner sliding sleeve 5 epirelief go out limiting card 5.4 relative with outer sliding sleeve 4 rear end limited impression 4.2 time, further promotion inner sliding sleeve falls into limited impression to protruding limiting card, on inner sliding sleeve elasticity convex clip arm, convex clip 5.2 also falls into outer sliding sleeve nose circle arc groove 4.1 simultaneously, so, correct concordant before two sliding sleeves, the slip line of rabbet joint is towards consistent and sealing forms slide bushing assembly relatively.After conduit tube component 1 and piercing assembly 2 assembly are good, again the slide bushing assembly that assembly is good is inserted in piercing assembly, inner sliding sleeve line of rabbet joint two side is along needle stand upper hopper chute 2.4, and be pushed to elasticity convex clip 5.1 on inner sliding sleeve forward and fall into detent 2.3 on needle stand, assembling completes.
In use, when after puncture and intubation success, piercing assembly withdrawn from by operation needle stand, slide bushing assembly in company with piercing assembly together with inlying catheter components apart, afterwards, a hands pinches outer sliding sleeve, another hands pinches needle stand operation fin, needle stand is pulled toward rear end, power is engaged owing to having convex clip 5.1 and limited impression 2.3 between needle stand and inner sliding sleeve, first needle stand is with inner sliding sleeve, along the outer slip line of rabbet joint, slide at outer sliding sleeve inner chamber, when outer sliding sleeve rear end inner chamber bulge loop 4.3 slips over convex clip 5.2 on the elasticity convex clip arm of inner sliding sleeve front end, and offset with inner sliding sleeve front end boss 5.3, at this moment outer sliding sleeve rear end inner chamber bulge loop 4.3 is subject to jam between inner sliding sleeve front end boss 5.3 with convex clip 5.2 on the elasticity convex clip arm of front end and coordinates, both can not continue forward, also can not slide backward, continue to pull needle stand, needle stand and inner sliding sleeve depart from and engage, needle stand operation fin slides along the inner sliding sleeve slip line of rabbet joint, and needle stand 2.2 also slides at inner sliding sleeve inner chamber admittedly simultaneously, and rear end boss inclined-plane 2.6 offsets with inner sliding sleeve convex clip 5.6, pull again backward, Gu end boss crosses inner sliding sleeve convex clip 5.6 after needle stand, inner sliding sleeve convex clip 5.6 falls into solid needle stand limited ring groove 2.5, and so, outer sliding sleeve is fully withdrawn, needle stand also falls back on rear end extreme position, and namely needle tubing is accommodated in sliding sleeve completely.
It is identical with embodiment one that the present embodiment does not state part.
Embodiment six:
With reference to Figure 23 ~ Figure 29; before cover is inserted into the needle tube protecting sleeve 3 of needle stand, end plug is connected to a kind of lid cover 6; this lid cover 6 has outer socket section and interior socket section 6.3; outer socket section is positioned at lid cover outer peripheral face, it protracts and is socketed with catheter block rear end coaxial; interior socket section 6.3 is positioned at lid cover 6 inner chamber, and it is socketed to after-opening and with needle stand front end and forms card and touches device, like this; needle tubing seat, catheter block and needle tube protecting sleeve all realize socket by this lid cover 6, and location is better each other.And by suitable being connected of elasticity, also the convenient card realizing the tactile device of card touches elasticity.The capping of lid cover front end is coaxially arranged with can through the perforation 6.1 of needle tubing.Needle tube protecting sleeve 3 front end is provided with a kind of ladder inner stopper, and plug sleeve 6 follower head is provided with corresponding ladder male half coupling 6.2, realizes plug sleeve 6 connect with the plug of needle tube protecting sleeve 3 between the two by the correspondence socket of this ladder internal and external stopper.
It is identical with embodiment one that the present embodiment does not state part.
Most preferred embodiment:
With reference to Figure 30 and Figure 31; before cover is inserted into the needle tube protecting sleeve 3 of needle stand, end plug is connected to a kind of lid cover 6; needle tubing seat front end stretched through this lid cover inner chamber interior socket section 6.3 after and coaxial of catheter block rear end be socketed, now, lid cover 6 is positioned at the rear of catheter block on axial location.This lid cover inner chamber interior socket section 6.3 therewith needle tubing seat front end machinery coordinate socket composition card touch device.By suitable being connected of elasticity, also the convenient card realizing the tactile device of card touches elasticity.
It is identical with embodiment six that the present embodiment does not state part.
Claims (12)
1. the remaining needle of one-sided line of rabbet joint protective sleeve, comprise needle tube protecting sleeve, conduit tube component and puncture needle tubing assembly, needle stand is fixed with operation fin, indwelling passage or be positioned at catheter block inner core or be positioned to pass through with catheter block side direction and to connect and on the side path extended, it is characterized in that, needle tube protecting sleeve is an elongated hollow housing, one sidewall has the slip line of rabbet joint of certain length, slip line of rabbet joint front opening, rear end or blind resistance or opening, this line of rabbet joint is corresponding with operation fin also can hold the joint operating fin and needle stand, needle tube protecting sleeve from remaining needle rear end cover be inserted into needle stand and forward slip until therebetween card touch device card touch connect, the needle tubing assembly be separated with conduit tube component after puncture and needle tube protecting sleeve are under external force, front card touches device and departs from card and to touch and needle tube protecting sleeve continues forward slip until rear card therebetween touches device card touches and connect, now needle tube protecting sleeve covers needle point completely.
2. the remaining needle of one-sided line of rabbet joint protective sleeve according to claim 1; 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.
3. the remaining needle of one-sided line of rabbet joint protective sleeve according to claim 1; it is characterized in that; before cover is inserted into the needle tube protecting sleeve of needle stand, end plug is connected to a kind of lid cover; this lid cover has the overcoat section of connecing and interior socket section; outer socket section is positioned at lid cover outer peripheral face, it protracts and is socketed with catheter block rear end coaxial; interior socket section is positioned at lid cover inner chamber, and it is socketed to after-opening and with needle stand front end and forms card and touches device, and the capping of lid cover front end is coaxially arranged with can through the perforation of needle tubing.
4. the remaining needle of one-sided line of rabbet joint protective sleeve according to claim 1; it is characterized in that; before cover is inserted into the needle tube protecting sleeve of needle stand, end plug is connected to a kind of lid cover; needle tubing seat front end stretched through after this lid cover inner chamber and be socketed with the coaxial of catheter block rear end, and the machinery of this lid cover inner chamber needle tubing seat front end therewith coordinates the tactile device of socket composition card.
5. the remaining needle of one-sided line of rabbet joint protective sleeve according to claim 1, it is characterized in that, sleeve pipe as needle tube protecting sleeve is a slim cylindrical shell, sidewall offers the one fixed width rectangular slide line of rabbet joint, guiding rib shiding matching on the slip line of rabbet joint and needle stand, this guiding rib is the joint of interconnected operation fin and needle stand, line of rabbet joint one end open, convex clip is provided with inside the opening part line of rabbet joint, convex clip or single or opposite respectively establish one, convex clip front end face acutangulates inclined plane, be convenient to the respective slot more easily skidded off when pushing on needle stand, line of rabbet joint rearward end case inside arranges one to be stopped and convex clip, needle tubing assembly is then made up of the needle stand of operation fin and revolving body, needle stand periphery size and the protective sleeve inner chamber face of cylinder are slidably matched, centre has a solid pin hole, between operation fin and needle stand, the guiding rib of coupling part arranges upper and lower symmetrical sliding tray, sliding tray radial width is mated with protective sleeve wall thickness, in sliding tray front end, one groove is respectively set near the upper and lower bottom land in needle tubing place, this groove size is mated with sleeve pipe front end convex clip and block tactile device before forming, needle stand rear portion have an annular stop groove and guiding angle, and with the stopping after convex clip forms and block tactile device of line of rabbet joint rearward end.
6. the remaining needle of one-sided line of rabbet joint 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.
7. the remaining needle of one-sided line of rabbet joint protective sleeve according to claim 1; it is characterized in that; as the sleeve pipe of needle tube protecting sleeve also offering one or two guiding lines of rabbet joint; this guiding line of rabbet joint and original line of rabbet joint are symmetrical at circumferencial direction, needle stand have additional the guiding rib that the line of rabbet joint that leads therewith mates.
8. the remaining needle of one-sided line of rabbet joint protective sleeve according to claim 1; it is characterized in that; needle tube protecting sleeve is a kind ofly nested in telescopic protective cover together by two joint sliding sleeves or three 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.
9. the remaining needle of one-sided line of rabbet joint protective sleeve according to claim 8, is characterized in that, is also provided with a kind of positioning apparatus for circumferential direction of locating mutual circumferential position between adjacent two sliding sleeves.
10. the remaining needle of one-sided line of rabbet joint protective sleeve according to claim 8, 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.
The remaining needle of 11. one-sided line of rabbet joint protective sleeves according to claim 10; 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.
The remaining needle of 12. one-sided line of rabbet joint protective sleeves according to claim 9; it is characterized in that; described positioning apparatus for circumferential direction is by forming as follows; inner sliding sleeve rear end radial direction is prominent convex a kind of limiting card; it is a kind of Cornu Caprae seu Ovis shape that this limiting card or two are distributed in inner sliding sleeve circumferencial direction; outer sliding sleeve rear end inward flange is provided with limiting card coupling therewith and also can subsides the limited impression of this limiting card, this limiting card is limited impression composition positioning apparatus for circumferential direction therewith.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047817.9A CN104707208B (en) | 2015-01-29 | 2015-01-29 | The remaining needle of unilateral line of rabbet joint protective case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047817.9A CN104707208B (en) | 2015-01-29 | 2015-01-29 | The remaining needle of unilateral line of rabbet joint protective case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104707208A true CN104707208A (en) | 2015-06-17 |
| CN104707208B CN104707208B (en) | 2018-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510047817.9A Active CN104707208B (en) | 2015-01-29 | 2015-01-29 | The remaining needle of unilateral line of rabbet joint protective case |
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| Country | Link |
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| CN (1) | CN104707208B (en) |
Cited By (7)
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| CN106421982A (en) * | 2016-09-05 | 2017-02-22 | 郑万章 | Safe needle guard and safe blood taking needle cylinder |
| CN106620947A (en) * | 2015-10-28 | 2017-05-10 | 贝克顿·迪金森公司 | Integrated intravenous catheter device |
| CN106860965A (en) * | 2017-02-21 | 2017-06-20 | 中国人民解放军第三军医大学第附属医院 | Inner sleeve type artery and vein puncture remaining needle |
| CN107789040A (en) * | 2016-08-31 | 2018-03-13 | 江苏阳普医疗科技有限公司 | A kind of safety-type medical trocar with position limiting structure |
| CN108310535A (en) * | 2018-01-04 | 2018-07-24 | 福建省百仕韦医用高分子股份有限公司 | The line of rabbet joint interlocks the remaining needle that convex clip formula prevents needle tubing exposed |
| CN108310536A (en) * | 2018-01-04 | 2018-07-24 | 福建省百仕韦医用高分子股份有限公司 | The remaining needle that annular snap ring type prevents needle tubing exposed |
| CN109224192A (en) * | 2018-09-28 | 2019-01-18 | 江苏治宇医疗器材有限公司 | A kind of safety shield for single wing transfusion syringe |
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| CN109224192A (en) * | 2018-09-28 | 2019-01-18 | 江苏治宇医疗器材有限公司 | A kind of safety shield for single wing transfusion syringe |
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| CN104707208B (en) | 2018-03-09 |
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