CN101112638B - Vessel having a safeguard device and introducing needle component - Google Patents
Vessel having a safeguard device and introducing needle component Download PDFInfo
- Publication number
- CN101112638B CN101112638B CN2006101080719A CN200610108071A CN101112638B CN 101112638 B CN101112638 B CN 101112638B CN 2006101080719 A CN2006101080719 A CN 2006101080719A CN 200610108071 A CN200610108071 A CN 200610108071A CN 101112638 B CN101112638 B CN 101112638B
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- China
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- pin
- introducing
- access division
- conduit
- alligator clamp
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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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. catheters
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
- A61M25/0625—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard with a permanent connection to the needle hub, e.g. a guiding rail, a locking mechanism or a guard advancement mechanism
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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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3275—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Vascular Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to a safety device which is used for a guide pipe and a leading needle component, the safety device is provided with a spring clamp (50), the spring clamp is provided with at least one first clamping part (52), at least one second clamping part (55) and a catch (53), when the leading needle is drew out, the first clamping part is irreversibly meshed with a first clamped part (47) which is arranged on a needle cage (40), the catch (53) moves to the position in front of the distal end of the leading needle, and a limit device (80) can limit the distal end of the leading needle 31 not to move to the outside of the needle cage. The safety device of the present invention can prevent the reuse of the spring clamp, the needle cage or the components.
Description
Technical field
The present invention relates to a kind of conduit and introduce needle assembly, more particularly, relate to a kind of safety device that is used for conduit and introduces needle assembly.
Background technology
Catheter in blood vessel, particularly venous duct (IV conduit) are normally used for importing liquid to patient, such as common saline solution, various medicine and injection nutriment etc., perhaps are used for extracting blood in the patient body.The tip venous duct is shorter usually, and size is probably at two inches or shorter.The conduit of common type is to be enclosed within a tip venous duct of introducing on the pin.This tip venous duct of introducing on the pin that is enclosed within is to be assemblied on the introducing pin that has a sharpened tip.Conduit and introducing pin are assembled into, and the needle point of introducing pin extends beyond the tip of conduit, and the inclined plane of introducing pin needle tip up.
Conduit and introduce needle assembly and pierced through patient's skin and enter into peripheral vessel with a shallow angle, described peripheral vessel does not directly link to each other with heart, but continuous with one of central vessel branch that directly links to each other with heart.In a kind of therein technology, introduce pin and conduit and penetrated in the blood vessel fully together.And in another technology, introduce pin and after the venipuncture of beginning, partly extracted out from conduit.Then, conduit is fully inserted in the blood vessel.
After conduit and introducing needle assembly were inserted in the blood vessel, important was to need to confirm whether this assembly be in correct positioning in blood vessel.Whether correctly in order to confirm described assembly location, the medical worker need confirm whether have backflow blood to exist at introducing pin and the back cavity that is arranged in introducing pin proximal end.Usually this back cavity constitutes the part of catheter block.As another scheme, introduce pin and can on its distal portions, be provided with a groove or opening, like this, when conduit is made by transparent or semitransparent material, can in the annular space of introducing between pin and the conduit, observe blood and reflux.In case correct positioning is confirmed that the medical worker will be by pressing patient's skin downwards at the most advanced and sophisticated position of introducing pin and conduit tube component and blood vessel being exerted pressure.The pressure of finger passes through to introduce pin with the further blood flow of obturation.Also can realize the obturation of blood flow by a batching pig.The medical worker extracts the introducing pin out and conduit is stayed the original place, then liquid transporting apparatus is connected to conduit such as the unfractionated heparin medicated cap or with skull.Extract out from conduit in case introduce pin, it will have " needle point of being infected with blood ", must correctly dispose.
In recent years, the patient of blood may be infected with to(for) the medical worker has had very large concern, has realized that " needle point of being infected with blood " must dispose immediately.This concern is increasing, because the fatal disease that can't treat at present occurred, such as, acquired immune deficiency syndrome (AIDS) (AIDS), these diseases may be delivered to the another one people from an infected person by the exchange of body fluid.Therefore, contact and to avoid with the body fluid of AIDSinfected patient.As mentioned above, be used to a conduit is placed in the blood vessel of AIDSinfected patient if introduce pin, this introduces the media that pin is exactly the transmission disease so.Need correct handle " being infected with the needle point of blood " although the medical worker has known, unfortunately under some medical environment, such as in emergency circumstances or owing to not being careful or neglecting, still exist the situation that the introducing pin be infected with stabs the medical worker.
In order to solve the problem that above-mentioned quilt " needle point that blood is infected with " accident is stung, various introducing pin safety devices have been developed.
American documentation literature US6287278 discloses a kind of IV conduit tube component, and this IV conduit tube component is provided with an alligator clamp that is used for protecting user.Yet this IV conduit tube component is not provided with outer housing or surrounds the outer housing of described alligator clamp.Although described alligator clamp can prevent user and touch the needle point of introducing pin that it can not prevent that user from touching the remained blood that is positioned on the needle point, and is particularly, all the more so when the introducing pin is provided with some circumferential apertures such as the backflow groove.So the IV conduit tube component among the US6287278 still is unsafe for the user.
Disclose a kind of conduit among the american documentation literature US5215528 and introduced needle assembly, had a metal clip in this assembly, this metal clip prevents that user is introduced into pricking wound after conduit is inserted in the blood vessel and extracts the introducing pin out from conduit.As shown in the accompanying drawing of US5215528, conduit and introducing needle assembly have a plurality of arc convex 50 that stretch out from flange 48, and these arc convex limit and form a containing seat 53, keep catheter block 52 in this containing seat 53.One end of body 38 limits lobe 38a of formation and extends in the catheter block.The end of arc convex 50 comprises some lips that extend internally 54, and these lips are keeping the flange 56 of catheter block releasedly.Arc convex 50 and lip 54 are designed to joint flange 56 and make and remove catheter block 52 from containing seat 53 and compare, and user is easier of introducing the pin needle stand pin cover of backing off by means of protuberance 48b.Yet above-mentioned matching relationship is also unreliable, because it depends on manufacturing tolerance.Like this, the disengaging between catheter block and introducing pin pin cover is unpredictable, may just break away from before needle point is got up by safeguard protection.It is inappropriate that this unsettled behavior needs in the environment of accuracy and reliability at some.
US6749588 discloses a kind of conduit and introducing needle assembly that has the pin cover.Be provided with an alligator clamp in this pin cover.After will introducing the pin extraction, the pin cover that has alligator clamp will be held on the needle point of introducing pin, thereby prevents that user from touching the bloodstain on the needle point.Yet, this pin cover can not prevent others' utilization again after use, just, and after introducing the pin extraction, can also under the situation of not damaging pin cover or alligator clamp, alligator clamp be taken out from the pin cover, will introduce pin then and be inserted into again and reach the purpose of reusing in the conduit.
Therefore, in the prior art, still need the safety device that is used for conduit and introducing needle assembly is improved so that overcome above-mentioned shortcoming.
Summary of the invention
An object of the present invention is to provide a kind of safety device that is used for conduit and introduces needle assembly, it can prevent not only that user from inserting blood vessel and introducing pin at conduit and touch needle point after extracting conduit out but also can prevent that user from touching the residue on the needle point.
The present invention also provides a kind of safety device that is used for conduit and introduces needle assembly, it can prevent that pin cover, introducing pin or whole assembly from being re-used after extracting the introducing pin out, that is, user can not be pulled out alligator clamp pin after extracting out and resets and get back to original compact model being introduced pin.
Above-mentioned purpose of the present invention realizes that by a kind of safety device that is used for conduit and introducing needle assembly described conduit and introducing needle assembly comprise:
Conduit tube component has: conduit has far-end and near-end; And catheter block, this catheter block is communicated with described catheter fluid, and this catheter block has near-end and far-end, and the far-end of catheter block links to each other with the near-end of conduit;
Introduce needle assembly, have: introduce pin, have near-end, far-end and longitudinal axis; Introduce the pin needle stand, be fixed to the near-end of introducing pin, described introducing pin is contained in the conduit;
Described safety device, comprise: the pin cover, this pin cover limits and forms longitudinally extending channels, and transversely be provided with opening in the direction longitudinally of this longitudinally extending channels, the diameter of longitudinally extending channels is a bit larger tham the diameter of introducing pin at least and can passes described longitudinally extending channels so that introduce pin, on described pin cover, be formed with at least one first by Access Division and at least one second by the Access Division; Alligator clamp, be provided with at least one first Access Division, at least one second Access Division and catch, described alligator clamp is installed in the pin cover by described opening, second Access Division of alligator clamp is irreversibly meshed by the Access Division with second of pin cover, described alligator clamp be suitable for one introducing in substantially perpendicular to the plane of introducing the pin longitudinal axis pin before extracting out compact model and introduce pin opening between the pattern after extracting out and stretch; And stopping means, being used for after introducing the pin extraction, the far-end that pin is introduced in restriction shifts out outside the pin cover,
Wherein, before introducing the pin extraction, described alligator clamp is passed the introducing pin that extends passage and is resisted against described compact model, and second Access Division of alligator clamp is irreversibly meshed by the Access Division with second.And when extract out to introduce pin and introduce pin when moving through alligator clamp, alligator clamp is discharged by described introducing pin and flicks the described pattern of opening, after introducing the pin extraction, first Access Division of alligator clamp irreversibly mesh the pin cover first by the Access Division, described catch moves to the far-end the place ahead of introducing pin and prevents that the far-end of introducing pin from moving to pin cover outside to distal direction.First Access Division and first is prevented that by the engagement between the Access Division alligator clamp from being recompressed after introducing the pin extraction, and second Access Division and second by the engagement between the Access Division prevent alligator clamp introduce pin extract out before and be pulled out the pin cover afterwards, stopping means introduce pin extract out after the far-end of restriction introducing pin shift out outside the pin cover towards proximal direction.
The present invention also provides a kind of conduit and introduces needle assembly, and described conduit and introducing needle assembly comprise:
Conduit tube component has: conduit has far-end and near-end; And catheter block, this catheter block is communicated with described catheter fluid, and this catheter block has near-end and far-end, and the far-end of catheter block links to each other with the near-end of conduit;
Introduce needle assembly, have: introduce pin, have near-end, far-end and longitudinal axis; Introduce the pin needle stand, be fixed to the near-end of introducing pin, described introducing pin is contained in the conduit;
Safety device, comprise: the pin cover, this pin cover limits and forms longitudinally extending channels, and transversely be provided with opening in the direction longitudinally of this longitudinally extending channels, the diameter of longitudinally extending channels is a bit larger tham the diameter of introducing pin at least and can passes described longitudinally extending channels so that introduce pin, on described pin cover, be formed with at least one first by Access Division and at least one second by the Access Division; Alligator clamp, be provided with at least one first Access Division, at least one second Access Division and catch, described alligator clamp is installed in the pin cover by described opening, second Access Division of alligator clamp is irreversibly meshed by the Access Division with second of pin cover, described alligator clamp be suitable for one introducing in substantially perpendicular to the plane of introducing the pin longitudinal axis pin before extracting out compact model and introduce pin opening between the pattern after extracting out and stretch; And stopping means, being used for after introducing the pin extraction, the far-end that pin is introduced in restriction shifts out outside the pin cover;
Wherein, before introducing the pin extraction, described alligator clamp is passed the introducing pin that extends passage and is resisted against described compact model, and second Access Division of alligator clamp is irreversibly meshed by the Access Division with second.And when extract out to introduce pin and introduce pin when moving through alligator clamp, alligator clamp is discharged by described introducing pin and flicks the described pattern of opening, after introducing the pin extraction, first Access Division of alligator clamp irreversibly mesh the pin cover first by the Access Division, described catch moves to the far-end the place ahead of introducing pin and prevents that the far-end of introducing pin from moving to pin cover outside to distal direction.First Access Division and first is prevented that by the engagement between the Access Division alligator clamp from being recompressed after introducing the pin extraction, and second Access Division and second by the engagement between the Access Division prevent alligator clamp introduce pin extract out before and be pulled out the pin cover afterwards, stopping means introduce pin extract out after the far-end of restriction introducing pin shift out outside the pin cover towards proximal direction.
The description of reading hereinafter by the reference accompanying drawing is appreciated that above-mentioned advantage of the present invention and other advantage, and shown in the accompanying drawing is the preferred embodiments of the present invention.
Accompanying drawing is described
Present invention is described for preferred implementation shown in reference to the accompanying drawings hereinafter.
Wherein:
Fig. 1 shows conduit that has safety device of the present invention and the entire product of introducing needle assembly;
Fig. 2 shows conduit shown in Fig. 1 and introduces the exploded view of needle assembly;
Fig. 3 shows the enlarged drawing of the alligator clamp in the first embodiment of the invention;
Fig. 4 shows the conduit of first embodiment and introduces the partial view of needle assembly, wherein shows the state before alligator clamp triggers, and at this state, alligator clamp is folded in its compact model and is introduced into pin and remains on this compact model;
Fig. 5 shows the conduit of first embodiment and introduces the another one partial view of needle assembly, and it also shows alligator clamp and triggers state before;
Fig. 6 is a perspective view, and it shows the position of first Access Division before alligator clamp triggers of the alligator clamp that is arranged in the pin cover;
Fig. 7 illustrates the another one view of safety device before alligator clamp triggers among first embodiment;
Fig. 8 shows the conduit of first embodiment and introduces needle assembly triggers the back state at alligator clamp partial view;
Fig. 9 shows the conduit of first embodiment and introduces needle assembly triggers the back state at alligator clamp another one view;
Figure 10 shows the conduit of first embodiment and introduces needle assembly triggers the back state at alligator clamp another one view;
Figure 11 is a perspective view, shows the position of first Access Division after alligator clamp triggers of the alligator clamp in the pin cover;
Figure 12 is a profile, and it shows at alligator clamp and triggers the position relation of the needle point of back introducing pin with respect to the washer of alligator clamp;
The view of Figure 13 shows packing ring and blocks the motion of introducing pin on direction backward;
Second Access Division that the view of Figure 14 clearly show that alligator clamp be positioned at the pin cover second engaged and prevent to re-use by the Access Division.
Figure 15 is an exploded view, and it shows second embodiment of the safety device that comprises the V-arrangement alligator clamp;
Figure 16 shows the V-arrangement alligator clamp among second embodiment;
Figure 17 shows the state of safety device after alligator clamp triggers among second embodiment;
Figure 18 shows the packing ring that uses in a second embodiment;
Figure 19 shows the 3rd embodiment of safety device, wherein serves as stopping means with tether.
The specific embodiment
In this article, term " near-end " and " far-end " are to describe the position that is positioned on conduit and the introducing needle assembly 10 for introducing pin needle stand 34.Term " direction forward " is meant towards the direction of introducing the pin needle point, and " direction backward " is meant towards the direction away from needle point.
In the present invention, in different embodiment, adopt identical label to identify identical position or parts.In addition, although the present invention can be implemented by the embodiment of various ways, only be preferred implementation of the present invention what shown in the accompanying drawing and hereinafter describe in detail, protection scope of the present invention is limited to the appended claims.
First embodiment of the present invention has been shown in Fig. 1-14.
As illustrated in fig. 1 and 2, have first embodiment of the invention safety device conduit and introduce needle assembly on the whole by label 10 signs.It comprises conduit tube component 20, introduces needle assembly 30 and safety device.
Introduce needle assembly 30 and comprise introducing pin 31, this introducing pin 31 has sharp distal needle point 32 that is formed by the inclined-plane and the near-end that links to each other with introducing pin needle stand 34.Near sharp distal needle point 32, introduce the position 33 that pin 31 comprises a sudden change, for example in the present embodiment, the position 33 of this sudden change can be the mutable site that a diameter increases.Introducing pin 31 is preferably made by rustless steel.Alternatively, backflow groove 35 can be arranged on to introduce on the pin 31 and introduce the backflow of the blood in the annular space between pin 31 outer surfaces and conduit 21 inner chambers so that observe.In another alternative, the groove 35 that also can not reflux, but the backflow chamber of an integral body can be set in introducing pin needle stand 34.Introduce pin needle stand 34 preferably by making with catheter block 24 identical materials.Preferably, can on introducing pin needle stand 34, extend one and grip sheet 36 for gripping.When fitting together, conduit 21 is enclosed within to be introduced outside the pin 31.
Described safety device comprises pin cover 40, and this pin cover 40 preferably is made of plastics.Safety device also comprises the alligator clamp 50 that is installed in the pin cover 40, as Fig. 2, shown in 4 and 5.As shown in Fig. 8-10, in case conduit 21 is inserted in the blood vessel and introduces pin 31 and extract out from conduit, pin cover 40 and alligator clamp 50 will be held on the needle point of introducing pin, thereby prevent that user from being stabbed by needle point.Pin cover 40 limits to be formed with and extends passage 42 longitudinally.Extend passage 42 longitudinally and can allow that introducing pin 31 vertically passes pin cover 40.The diameter that extends passage 42 will be a bit larger tham the diameter of introducing pin 31 bar portions at least.Extension passage 42 easily passes in the bar portion that can allow introducing pin 31 like this.Extend passage 42 and comprise distal portions 44 and proximal part 45, distal portions 44 is being extracted the near-end that surrounds catheter block 20 before introducing pin 31 out, and proximal part 45 seals in it extracting the distal portions that will introduce pin 31 after introducing pin 31 out.Safety device also comprises stopping means 80, and this stopping means will move to outside the pin cover 40 by the needle point of restriction introducing pin after introducing pin 31 extractions.
As shown in Figures 4 and 5, the direction along its longitudinal axis is provided with opening 60 on the pin cover 40.This opening 60 communicates with extension passage 42.Alligator clamp 50 is installed in the pin cover 40 by opening 60.Before the extraction of introducing pin 31, alligator clamp 50 will be folded into its compact model and be introduced into pin 31 and be resisted against its compact model, and in this case, alligator clamp 50 will be positioned at a side (referring to Fig. 4,5 and 7) of the axis of introducing pin 31.After extracting introducing pin 31 out, introduce pin 31 retracting springs folder 50, thereby returning to it from its compact model, alligator clamp 50 opens pattern (referring to Fig. 8-10).When the needle point of introducing pin 31 moves through alligator clamp 50 during the extraction of introducing pin 31, it will trigger alligator clamp 50 (will be called " triggering of alligator clamp ") hereinafter from compact model to the motion of opening pattern.
Figure 3 illustrates the alligator clamp 50 in the first embodiment of the invention, although this alligator clamp 50 can be other shape, it preferably can be the V-arrangement alligator clamp among this first embodiment.Alligator clamp 50 is installed in the pin cover 40 by opening 60, and the direction opposite with opening 60 pointed on the summit of V-arrangement, and when alligator clamp 50 was in it and opens pattern, the two legs that forms V-arrangement will straddle on introducing pin 31 longitudinal axis.With this locate mode, when alligator clamp triggered, alligator clamp 50 was suitable for transverse to the longitudinal line of movement of introducing pin 31.The route that this motion can limit along a ramp surface on the pin cover 40 carries out.Certainly, alligator clamp 50 summit that can be arranged to its V-arrangement in pin cover 40 is positioned at other position with the circle of introducing pin 31 longitudinal axis coaxial lines.Necessary is that alligator clamp 50 is suitable for transverse to the longitudinal line of movement of introducing pin 31.The summit of V-arrangement is convenient to it and is opened towards compact model compression or from compact model.In addition, the summit of V-arrangement also can be the form of loose-joint butt.
In first embodiment, alligator clamp 50 limits one of two legs of formation V-arrangement and is provided with the clamping limb 54 that is in substantially parallel relationship to the extension of introducing pin 31 longitudinal axis directions.On vertical two ends of this clamping limb 54, be formed with two protruding fingers.Preferably, two protruding fingers, extend perpendicular to the longitudinal axis of introducing pin 31 substantially.First Access Division 52 is formed on one of described protruding finger, and the 3rd Access Division 51 is formed on the protruding finger of another one.On this first embodiment, first Access Division 52 can be at least one non-return latch or agnail from giving prominence to towards pin cover 40 on the described protruding finger.Can be non-return latch or groove and be formed at first on the pin cover 40 by Access Division 47, and this illustrates in Figure 14 better.
Form the free end of the other one leg of V-arrangement in the qualification of alligator clamp 50, form protruding finger 56 by this free end of folded towards V-arrangement.Second Access Division 55 is formed on this protruding finger 56.As shown in Figure 3, second Access Division 55 can be at least one non-return latch or agnail.When alligator clamp 50 is installed in the pin cover 40, protruding finger 56 will be inserted in the groove 49 (referring to Fig. 7) that is formed on the pin cover 40, as the non-return latch of second Access Division 55 or agnail will with the inwall that is formed on this groove 49 on second by for example non-return latch or the engagement of recess (not shown) of Access Division, like this, in case the protruding finger 56 of alligator clamp 50 is inserted in the groove 49 just can not be pulled out.As another scheme, second Access Division 55 also can be other structure, such as the flange that forms by the free end that bends protruding finger 56.Necessary is that second Access Division 55 and second should be prevented that alligator clamp 50 from being extracted by the Access Division (not shown) after their engagements from pin cover 40.
Because the effect of first Access Division 52 and second Access Division 55, after alligator clamp triggers, user can not make the state before alligator clamp is got back to triggering under the situation of not destroying alligator clamp or pin cover, thereby has prevented alligator clamp or introducing pin or whole conduit and introduced reusing of needle assembly.
As mentioned above, in first embodiment, the 3rd Access Division 51 is for being formed at the protruding finger on the clamping limb 54 that is in substantially parallel relationship to the longitudinal axis extension of introducing pin 31.The 3rd can be formed in flange on the catheter block 24, screw thread, groove, non-return latch or the like by Access Division 25.Although the 3rd Access Division 51 and the 3rd is preferred by the use of Access Division 25, because mechanical connection initiatively can be provided between pin cover 40 and catheter block 24 like this, yet the 3rd Access Division 51 and the 3rd is not necessary by Access Division 25.If without them, can utilize frictional force between pin cover 40 and the catheter block 24 as engaging force, such frictional force overcomes than above-mentioned active mechanical engaging force is easier.Yet in some cases, such frictional force is enough.
The setting of catch 53 is to be used for preventing to introduce pin after alligator clamp triggers to move on direction forward.This will be described in more detail below.Although on this catch 53, preferably do not have the hole, as another alternative, also can be provided with the hole on the catch 53, but the internal diameter in this hole should be bigger than the bar portion diameter of introducing pin 31, but less than the augmenting portion 33 of introducing pin 31.Like this, after alligator clamp triggered, the needle point of introducing pin can be inserted in this hole, but the augmenting portion of introducing pin 31 is but blocked by this hole.
Accompanying drawing 4 shows conduit and introduces the state of needle assembly before the triggering of alligator clamp 50.In this state, alligator clamp 50 is folded in its compact model and is installed in by opening 60 in the extension passage 42 of pin cover 40.Alligator clamp 50 be introduced into pin 31 against and remain on this compact model.The end of catheter block 24 by the end portion 44 of the extension passage 42 of pin cover 40 around encirclement.
Fig. 5 shows the another one view of state before the spring of alligator clamp 50 triggers.This alligator clamp 50 is introduced into pin 31 and remains on compact model.The 3rd Access Division 51 and the 3rd is meshed by Access Division 25, and the described the 3rd for example can be the flange that is positioned on the catheter block 24 by Access Division 25.Fig. 6 is clearly shown that residing position before alligator clamp triggers, the 3rd Access Division 51 more.In this state, the 3rd Access Division 51 extend in the distal portions 44 that extends passage 42 and with being positioned at the 3rd on catheter block 24 close ends and is meshed by Access Division 25, has so just prevented that on one's own initiative pin cover 40 from removing from catheter block 24.
Fig. 7 shows the another one view that alligator clamp triggers preceding state.Alligator clamp 50 is introduced into pin 31 and remains on compact model.The 3rd Access Division 51 extend into around in the distal portions 44 that surrounds in the catheter block 24.
Fig. 8,9 and 10 show the state after alligator clamp 50 triggers.In case conduit 21 is inserted in the blood vessel, the medical worker will extract out from conduit 21 and introduce pin 31.Withdraw from motion along with introducing pin 31 from conduit 21, the alligator clamp 50 that is in compact model will be introduced into pin 31 and discharge after the needle point of introducing pin 31 move through alligator clamp 50, thereby alligator clamp 50 flicks it from its compact model and opens pattern.When alligator clamp 50 opens, the 3rd Access Division 51 will no longer extend in the end portion 44 of extending passage 42, thus be positioned at the 3rd on the catheter block 24 and broken away from engagement by Access Division 25.In this case, pin cover 40 can move freely on direction backward along the axis of introducing pin 31.The action of opening owing to alligator clamp 50, the catch 53 of alligator clamp 50 will never seal the position that the position that is positioned at the hole 46 on the proximal part that extends passage 42 moves to this hole 46 of sealing, introducing pin 31 will be retracted in this proximal part that extends passage (referring to Fig. 8,10 and 12).Like this, catch 53 will prevent to introduce pin 31 and moves forward and reenter in the conduit 21.Simultaneously, stopping means 80 will limit and introduce pin 31 and be moved out to outside the pin cover 40 after alligator clamp triggers.In this embodiment, stopping means 80 can be a packing ring, and a hole is arranged on this packing ring, and the diameter that the size in this hole should be introduced into pin 31 shanks part is big slightly and littler than introducing the sudden change part 33 that diameter increases on the pin 31.This packing ring can be installed in the cavity in pin cover 40 proximal parts, introduces pin 31 and passes from the hole of packing ring.Packing ring 80 will block the increasing diameter large part 33 of introducing pin 31.Like this, the distal portions of introducing pin 31 will be closed in the proximal part 45 that extends passage 42 and cannot see.Thereby the residual bloodstain on the needle point will be enclosed in the proximal part 45 that extends passage 42.
After alligator clamp triggers, be positioned at first Access Division 52 (user will be cannot see) engagement on the alligator clamp 50 be positioned at first on the pin cover 40 by Access Division 47 preventing that alligator clamp 50 from being compressed again, thereby prevented to re-use.By means of first by the engagement of the Access Division 47 and first Access Division 52, will prevent that alligator clamp 50 is reset and gets back to the state before triggering, thereby prevent to re-use.
As Figure 10, shown in 12 and 13, the packing ring 80 that serves as stopping means in the present embodiment is set in the extension passage 42 of pin cover 40.The size in the hole of this packing ring 80 will allow that the even shank of introducing pin 31 partly passes the sudden change part 33 that still will block the diameter increase of introducing pin 31.Like this, the hole of packing ring 80 will be blocked the diameter-increasing portion 33 of introducing pin 31 and stop the further extraction of introducing pin 31.
The sudden change part 33 that diameter increases can for example be a projection, and its position should make blood backflow groove 35 (if there is) of introducing on the pin 31 and the needle point of introducing pin be closed in the proximal part 45 that extends passage 42 when it is blocked by packing ring 80.In addition, described projection is positioned at the place ahead of groove 35, and like this when blood taking place reflux, this projection 33 can not have backflow and reduces effect.This projection can be an independent iron hoop, it is installed in introduces on the pin 31, yet this projection preferably forms by opposite 2 of respective regions that pin 31 is introduced in extruding, the zone that is squeezed will become flat and with the vertical direction of extruding on form significantly projection.Such projection can be called as " expression lobes ".
As shown in Figure 8, along with the further extraction action of introducing pin 31, introducing needle assembly 30 and pin cover 40 will break away from catheter block 24 because this moment alligator clamp 50 the 3rd Access Division 51 and conduit 24 the 3rd broken away from engagement by Access Division 25, and the projection of introducing pin 31 is blocked by packing ring 80.
Certainly, first Access Division 52 can be different from the structure of first embodiment for other, and for example, Figure 15-18 shows second embodiment of safety device of the present invention, wherein, the non-return latch of first Access Division 52 of alligator clamp 50 for forming by the edge that folds protruding finger.Therefore, necessaryly be that first Access Division 52 and first engagement that should be formed them by Access Division 47 will prevent that alligator clamp 50 from being recompressed again by user after triggering.In addition, packing ring 80 also might not be circular, and it also can be other shape (referring to Figure 18), the sudden change part 33 that the diameter in the desired just hole of packing ring 80 should still increase less than the diameter of introducing pin 31 greater than the bar portion diameter of introducing pin 31.
The 3rd embodiment of safety device of the present invention has been shown among Figure 19.In this embodiment, stopping means 80 is not packing ring but chain rope, and this chain rope can be made of plastics.Before introducing pin 31 extractions, chain rope 80 is folded in to be introduced between pin needle stand 34 and the pin cover 40, and the one end is connecting introducing pin needle stand 34, and an other end is connecting pin cover 40.After introducing pin 31 extractions, the length of chain rope 80 will limit the needle point of introducing pin 31 and shift out pin cover 40.The pin 31 extractions state afterwards of introducing has been shown among Figure 19.In the 3rd embodiment, owing to adopted chain rope 80, the sudden change part of introducing on the pin 31 33 no longer needs.
What deserves to be mentioned is, the sudden change part 33 of in first and second embodiment, having used packing ring 80 and having increased, but also can adopt other structure.Such as, stopping means can be an independent spring leaf, and sudden change part 33 is not an augmenting portion but is positioned at the groove of introducing on the pin 31.When the groove of introducing pin 31 when extract out introducing pin 31 moves through described independent spring leaf, this spring leaf will be stuck in the described groove.In addition, stopping means 80 also may simply be pin cover 40 and extends a hole on the passages 42, the internal diameter in this hole less than the increase sudden change part 33 of introducing pin 31 less than the bar portion diameter of introducing pin.
After introducing pin 31 extractions, pin cover 40 will be held on the distal portions of introducing pin 31, because stopping means 80 such as, packing ring, the chain rope, or independent spring leaf will prevent reliably that the distal portions of introducing pin 31 from shifting out outside the pin cover 40, rotates with respect to the pin cover and also still can prevent reliably even introduce pin 31.
Hereinbefore, invention has been described as an example with specific embodiment, but not should be understood to be limitation of the present invention to these specific embodiments, should be understood that those skilled in the art can change on the basis of specific embodiment.Protection scope of the present invention is limited by the accompanying claims.
Claims (26)
1. one kind is used for conduit and the safety device of introducing needle assembly (10), and described conduit and introducing needle assembly (10) comprising:
Conduit tube component (20) has: conduit (21) has far-end and near-end; And catheter block (24), this catheter block is communicated with described conduit (21) fluid, and this catheter block has near-end and far-end, and the far-end of catheter block links to each other with the near-end of conduit (21);
Introduce needle assembly (30), have: introduce pin (31), have near-end, far-end and longitudinal axis; Introduce pin needle stand (34), be fixed to the near-end of introducing pin (31), described introducing pin (31) is contained in the conduit (21);
Described safety device, comprise: pin cover (40), this pin cover (40) limits and forms longitudinally extending channels (42), and transversely be provided with opening (60) in the direction longitudinally of this longitudinally extending channels (42), the diameter of longitudinally extending channels (42) is a bit larger tham the diameter of introducing pin (31) at least and can passes described longitudinally extending channels (42) so that introduce pin (31), on described pin cover (40), be formed with at least one first by Access Division (47) and at least one second by the Access Division; Alligator clamp (50), be provided with at least one first Access Division (52), at least one second Access Division (55) and catch (53), described alligator clamp (50) is installed in the pin cover (40) by described opening (60), second Access Division (55) of alligator clamp (50) is irreversibly meshed by the Access Division with second of pin cover (40), described alligator clamp (50) be suitable for one introducing in substantially perpendicular to the plane of introducing the pin longitudinal axis pin (31) before extracting out compact model and introduce pin (31) opening between the pattern after extracting out and stretch; And stopping means (80), being used for after introducing pin (31) extraction, the far-end that pin (31) is introduced in restriction shifts out outside the pin cover (40),
Wherein, before introducing pin (31) extraction, described alligator clamp (50) is passed the introducing pin (31) that extends passage (42) and is resisted against described compact model, and when extracting the introducing pin out, when introducing pin (31) moves through alligator clamp (50), alligator clamp is discharged by described introducing pin and flicks the described pattern of opening, after introducing the pin extraction, first Access Division (52) of alligator clamp irreversibly mesh pin cover (40) first by Access Division (47), described catch (53) moves to the far-end the place ahead of introducing pin and prevents to introduce pin and back move, first Access Division (52) and first is prevented that by the engagement between Access Division (47) alligator clamp (50) from being recompressed after introducing pin (31) extraction, and second Access Division (55) and second are prevented that by the engagement between the Access Division alligator clamp (50) is pulled out pin cover (40), and the far-end that pin (31) is introduced in stopping means (80) restriction after introducing pin (31) extraction shifts out outside the pin cover (40).
2. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 1, wherein, described alligator clamp (50) also is provided with at least one the 3rd Access Division (51), when alligator clamp (50) is in when introducing the compact model of pin (31) before extracting out, described the 3rd Access Division (51) is meshed on one's own initiative and is formed at the 3rd on the catheter block (24) by Access Division (25), and when alligator clamp (50) be in introduce pin after extracting out open pattern the time, described the 3rd Access Division (51) is broken away from engagement with the 3rd by Access Division (25).
3. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 1 or 2, wherein, alligator clamp (50) is the V-arrangement alligator clamp, the summit of V-arrangement is towards opposite with opening (60), when alligator clamp (50) is in when opening pattern, the two legs that limits V-arrangement straddles on the longitudinal axis of introducing pin (31).
4. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 3, wherein, alligator clamp (50) limits one of two legs of V-arrangement and is provided with the clamping limb (54) that is parallel to introducing pin (31) longitudinal axis substantially, respectively be formed with a protruding finger at the two ends of this clamping limb (54), described first Access Division (52) is for being formed at non-return latch on one of described protruding finger, described first by Access Division (47) for being formed at non-return latch or the recess on the pin cover (40).
5. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 4, wherein, described first Access Division (52) is for being formed at the agnail on one of described protruding finger.
6. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 4, wherein, the flange that described first Access Division (52) forms for the edge by one of folding described protruding finger.
7. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 3, wherein, described second Access Division (55) is for being formed at the non-return latch that limits on the other one leg that forms V-arrangement.
8. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 7, wherein, described second Access Division (55) is for being formed at the non-return latch on the protruding finger (56) that limits on the other one leg free end that forms V-arrangement.
9. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 1, wherein, described stopping means (80) is for being installed in the packing ring on the pin cover (40), this packing ring has a hole, the diameter in this hole greater than the diameter of the bar portion that introduces pin (31) less than a diameter-increasing portion (33) of introducing on the pin (31), when introducing the pin extraction, this packing ring will block described diameter-increasing portion (33).
10. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 9, wherein, described catch (53) comprises a hole, the diameter in this hole greater than the bar portion that introduces pin (31) less than the diameter-increasing portion (33) of introducing pin.
11. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 1, wherein, described stopping means (80) can be a hole on the extension passage that is positioned at pin cover (40), the diameter in this hole greater than the bar portion that introduces pin less than the diameter-increasing portion of introducing pin.
12. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 1, wherein, described stopping means (80) is a chain rope, and an end of this chain rope connects described needle stand (34), and an other end is connecting described pin cover (40).
13. the safety device that is used for conduit and introduces needle assembly (10) as claimed in claim 1, wherein, described stopping means (80) is an independent spring leaf, and this independent spring leaf will partly mesh with the annular groove that is positioned on the introducing pin (31) after introducing pin (31) extraction.
14. a conduit and introduce needle assembly (10), described conduit and introduce needle assembly (10) and comprising:
Conduit tube component (20) has: conduit (21) has far-end and near-end; And catheter block (24), this catheter block is communicated with described conduit (21) fluid, and this catheter block has near-end and far-end, and the far-end of catheter block links to each other with the near-end of conduit (21);
Introduce needle assembly (30), have: introduce pin (31), have near-end, far-end and longitudinal axis; Introduce pin needle stand (34), be fixed to the near-end of introducing pin (31), described introducing pin (31) is contained in the conduit (21);
Safety device, comprise: pin cover (40), this pin cover (40) limits and forms longitudinally extending channels (42), and transversely be provided with opening (60) in the direction longitudinally of this longitudinally extending channels (42), the diameter of longitudinally extending channels (42) is a bit larger tham the diameter of introducing pin (31) at least and can passes described longitudinally extending channels (42) so that introduce pin (31), on described pin cover (40), be formed with at least one first by Access Division (47) and at least one second by the Access Division; Alligator clamp (50), be provided with at least one first Access Division (52), at least one second Access Division (55) and catch (53), described alligator clamp (50) is installed in the pin cover (40) by described opening (60), second Access Division (55) of alligator clamp (50) is irreversibly meshed by the Access Division with second of pin cover (40), described alligator clamp (50) be suitable for one introducing in substantially perpendicular to the plane of introducing the pin longitudinal axis pin (31) before extracting out compact model and introduce pin (31) opening between the pattern after extracting out and stretch; And stopping means (80), being used for after introducing pin (31) extraction, the far-end that pin (31) is introduced in restriction shifts out outside the pin cover (40);
Wherein, before introducing pin (31) extraction, described alligator clamp (50) is passed the introducing pin (31) that extends passage (42) and is resisted against described compact model, and when extract out to introduce pin and introduce pin (31) when moving through alligator clamp (50), alligator clamp is discharged by described introducing pin and flicks the described pattern of opening, after introducing the pin extraction, first Access Division (52) of alligator clamp irreversibly mesh pin cover (40) first by Access Division (47), described catch (53) moves to the far-end the place ahead of introducing pin and prevents to introduce pin and back move, first Access Division (52) and first is prevented that by the engagement between Access Division (47) alligator clamp (50) from being recompressed after introducing pin (31) extraction, and second Access Division (55) and second are prevented that by the engagement between the Access Division alligator clamp (50) is pulled out pin cover (40), and the far-end that pin (31) is introduced in stopping means (80) restriction after introducing pin (31) extraction shifts out outside the pin cover (40).
15. conduit as claimed in claim 14 and introducing needle assembly (10), wherein, described alligator clamp (50) also is provided with at least one the 3rd Access Division (51), when alligator clamp (50) is in when introducing the compact model of pin (31) before extracting out, described the 3rd Access Division (51) is meshed on one's own initiative and is formed at the 3rd on the catheter block (24) by Access Division (25), and when alligator clamp (50) be in introduce pin after extracting out open pattern the time, described the 3rd Access Division (51) is broken away from engagement with the 3rd by Access Division (25).
16. as claim 14 or 15 described conduits and introducing needle assembly (10), wherein, alligator clamp (50) is the V-arrangement alligator clamp, and the summit of V-arrangement is towards opposite with opening (60), when alligator clamp (50) is in when opening pattern, the two legs that limits V-arrangement straddles on the longitudinal axis of introducing pin (31).
17. conduit as claimed in claim 14 and introducing needle assembly (10), wherein, alligator clamp (50) limits one of two legs of V-arrangement and is provided with the clamping limb (54) that is parallel to introducing pin (31) longitudinal axis substantially, respectively be formed with a protruding finger at the two ends of this clamping limb (54), described first Access Division (52) is for being formed at non-return latch on one of described protruding finger, described first by Access Division (47) for being formed at non-return latch or the recess on the pin cover (40).
18. conduit as claimed in claim 17 and introducing needle assembly (10), wherein, described first Access Division (52) is for being formed at the agnail on one of described protruding finger.
19. conduit as claimed in claim 17 and introducing needle assembly (10), wherein, the flange that described first Access Division (52) forms for the edge by one of folding described protruding finger.
20. conduit as claimed in claim 17 and introducing needle assembly (10), wherein, described second Access Division (55) is for being formed at the non-return latch that limits on the other one leg that forms V-arrangement.
21. conduit as claimed in claim 20 and introducing needle assembly (10), wherein, described second Access Division (55) is for being formed at the non-return latch on the protruding finger (56) that limits on the other one leg free end that forms V-arrangement.
22. conduit as claimed in claim 14 and introducing needle assembly (10), wherein, described stopping means (80) is for being installed in the packing ring on the pin cover (40), this packing ring has a hole, the diameter in this hole greater than the diameter of the bar portion that introduces pin (31) less than a diameter-increasing portion (33) of introducing on the pin (31), when introducing the pin extraction, this packing ring will block described diameter-increasing portion (33).
23. conduit as claimed in claim 22 and introduce needle assembly (10), wherein, described catch (53) comprises a hole, the diameter in this hole greater than the bar portion that introduces pin (31) less than the diameter-increasing portion (33) of introducing pin.
24. conduit as claimed in claim 14 and introduce needle assembly (10), wherein, described stopping means (80) can be a hole on the extension passage that is positioned at pin cover (40), the diameter in this hole greater than the bar portion that introduces pin less than the diameter-increasing portion of introducing pin.
25. conduit as claimed in claim 14 and introducing needle assembly (10), wherein, described stopping means (80) is a chain rope, and an end of this chain rope connects described needle stand (34), and an other end is connecting described pin cover (40).
26. conduit as claimed in claim 14 and introducing needle assembly (10), wherein, described stopping means (80) is an independent spring leaf, and this independent spring leaf will partly mesh with the annular groove that is positioned on the introducing pin (31) after introducing pin (31) extraction.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101080719A CN101112638B (en) | 2006-07-27 | 2006-07-27 | Vessel having a safeguard device and introducing needle component |
| TW095130085A TWI367116B (en) | 2006-07-27 | 2006-08-16 | Catheter and introducer needle assembly with safety device |
| SG2011051620A SG173382A1 (en) | 2006-07-27 | 2006-08-18 | Catheter and introducer needle assembly with safety device |
| SG200605667-5A SG139607A1 (en) | 2006-07-27 | 2006-08-18 | Catheter and introducer needle assembly with safety device |
| AU2006203664A AU2006203664B2 (en) | 2006-07-27 | 2006-08-23 | Catheter and introducer needle assembly with safety device |
| KR1020060083609A KR101303268B1 (en) | 2006-07-27 | 2006-08-31 | Catheter and introducer needle assembly with safety device |
| HK08108332.2A HK1117774A1 (en) | 2006-07-27 | 2008-07-28 | Catheter and introducer needle assembly with safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101080719A CN101112638B (en) | 2006-07-27 | 2006-07-27 | Vessel having a safeguard device and introducing needle component |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010158546A Division CN101843947A (en) | 2006-07-27 | 2006-07-27 | Have the conduit of safety device and introduce needle assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101112638A CN101112638A (en) | 2008-01-30 |
| CN101112638B true CN101112638B (en) | 2011-06-08 |
Family
ID=39021264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101080719A Active CN101112638B (en) | 2006-07-27 | 2006-07-27 | Vessel having a safeguard device and introducing needle component |
Country Status (5)
| Country | Link |
|---|---|
| KR (1) | KR101303268B1 (en) |
| CN (1) | CN101112638B (en) |
| AU (1) | AU2006203664B2 (en) |
| HK (1) | HK1117774A1 (en) |
| SG (2) | SG173382A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102470233B (en) * | 2009-09-15 | 2014-09-17 | 泰尔茂株式会社 | Catheter |
| CN102284109A (en) * | 2010-06-18 | 2011-12-21 | 苏州康益明华生物医药科技有限公司 | Receiving type safe needle protector with sheath |
| CN102284110A (en) * | 2010-06-18 | 2011-12-21 | 苏州康益明华生物医药科技有限公司 | Sheath-type safety needle guard |
| US8932259B2 (en) * | 2010-09-13 | 2015-01-13 | Becton, Dickinson And Company | Catheter assembly |
| US10500376B2 (en) | 2013-06-07 | 2019-12-10 | Becton, Dickinson And Company | IV catheter having external needle shield and internal blood control septum |
| GB2508570C (en) | 2013-08-21 | 2020-02-05 | Braun Melsungen Ag | Catheter assembly |
| CN103510193A (en) * | 2013-09-18 | 2014-01-15 | 苏州琼派瑞特电子科技有限公司 | Down feather feeding pipe |
| BR112016024168B1 (en) | 2014-04-18 | 2022-09-27 | Becton, Dickinson And Company | CATHETER SET AND METHOD FOR OPERATING A CATHETER SET |
| US11511052B2 (en) | 2014-11-10 | 2022-11-29 | Becton, Dickinson And Company | Safety IV catheter with V-clip interlock and needle tip capture |
| WO2016077234A1 (en) * | 2014-11-10 | 2016-05-19 | LUKASAVAGE, Jeanne P. | Safety iv catheter with v-clip interlock and needle tip capture |
| KR101660713B1 (en) | 2015-09-21 | 2016-09-28 | 이상운 | Safety I.V. catheter set |
| CN106267521B (en) * | 2016-08-30 | 2023-04-07 | 苏州鱼跃医疗科技有限公司 | Safety device, catheter, introducer needle assembly, and indwelling needle |
| KR102142270B1 (en) | 2017-09-12 | 2020-08-07 | 이현우 | Safety I.V. catheter assembly |
| GB201819059D0 (en) * | 2018-11-22 | 2019-01-09 | Enesi Pharma Ltd | Single-use cassette assembly |
| WO2021096019A1 (en) * | 2019-11-14 | 2021-05-20 | 방대희 | Catheter for intravenous injection |
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| US5215528A (en) * | 1992-02-07 | 1993-06-01 | Becton, Dickinson And Company | Catheter introducer assembly including needle tip shield |
| CN1146918A (en) * | 1995-06-07 | 1997-04-09 | 庄臣及庄臣医药有限公司 | Catheter release mechanism |
| US6287278B1 (en) * | 1997-08-20 | 2001-09-11 | B. Braun Melsungen, Ag | Spring dip safety IV catheter |
| US6749588B1 (en) * | 1998-04-09 | 2004-06-15 | Becton Dickinson And Company | Catheter and introducer needle assembly with needle shield |
| CN1662275A (en) * | 2002-06-20 | 2005-08-31 | 贝克顿·迪金森公司 | Catheter and introducer needle assembly with needle shield |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6004294A (en) | 1998-04-09 | 1999-12-21 | Becton, Dickinson And Company | Catheter and introducer needle assembly with needle shield |
| AU2970601A (en) | 2000-02-04 | 2001-08-14 | Becton Dickinson Co | Catheter and introducer needle assembly with compact needle shield |
| EP1292355B1 (en) | 2000-06-09 | 2007-05-16 | Becton, Dickinson and Company | Catheter and introducer needle assembly with needle shield |
| BRPI0107774B8 (en) * | 2000-11-21 | 2021-06-22 | Becton Dickinson Co | introducer needle and catheter set with needle guard. |
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2006
- 2006-07-27 CN CN2006101080719A patent/CN101112638B/en active Active
- 2006-08-18 SG SG2011051620A patent/SG173382A1/en unknown
- 2006-08-18 SG SG200605667-5A patent/SG139607A1/en unknown
- 2006-08-23 AU AU2006203664A patent/AU2006203664B2/en active Active
- 2006-08-31 KR KR1020060083609A patent/KR101303268B1/en active IP Right Grant
-
2008
- 2008-07-28 HK HK08108332.2A patent/HK1117774A1/en unknown
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| US5215528A (en) * | 1992-02-07 | 1993-06-01 | Becton, Dickinson And Company | Catheter introducer assembly including needle tip shield |
| US5215528C1 (en) * | 1992-02-07 | 2001-09-11 | Becton Dickinson Co | Catheter introducer assembly including needle tip shield |
| CN1146918A (en) * | 1995-06-07 | 1997-04-09 | 庄臣及庄臣医药有限公司 | Catheter release mechanism |
| US6287278B1 (en) * | 1997-08-20 | 2001-09-11 | B. Braun Melsungen, Ag | Spring dip safety IV catheter |
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| US6749588B1 (en) * | 1998-04-09 | 2004-06-15 | Becton Dickinson And Company | Catheter and introducer needle assembly with needle shield |
| CN1662275A (en) * | 2002-06-20 | 2005-08-31 | 贝克顿·迪金森公司 | Catheter and introducer needle assembly with needle shield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101112638A (en) | 2008-01-30 |
| SG173382A1 (en) | 2011-08-29 |
| HK1117774A1 (en) | 2009-01-23 |
| KR101303268B1 (en) | 2013-09-03 |
| AU2006203664B2 (en) | 2013-09-19 |
| SG139607A1 (en) | 2008-02-29 |
| AU2006203664A1 (en) | 2008-02-14 |
| KR20080011013A (en) | 2008-01-31 |
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