CN104043181B - Safety Iv Catheter Assembly With Seal - Google Patents
Safety Iv Catheter Assembly With Seal Download PDFInfo
- Publication number
- CN104043181B CN104043181B CN201410087128.6A CN201410087128A CN104043181B CN 104043181 B CN104043181 B CN 104043181B CN 201410087128 A CN201410087128 A CN 201410087128A CN 104043181 B CN104043181 B CN 104043181B
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- China
- Prior art keywords
- pin
- catheter hub
- protector
- pin protector
- conduit tube
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/0097—Catheters; Hollow probes characterised by the hub
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to a safety IV catheter assembly with a seal. Catheter assemblies are described having a catheter hub with a catheter tube and a needle hub with a needle projecting through the catheter tube. The catheter hub has at least two seals with at least one being a temporary seal that ends or terminates upon movement of a needle and/or a guard. Different needle guards are provided that can be seated differently within the catheter hub to seal against the elastic seal.
Description
Technical field
The conduit tube component for intravenous venipuncture is generally discussed herein, and is more specifically discussed and had
The IV conduit tube components of tip protector or pin protector and the seal for limit blood flash back.
Background technology
IV conduits（IVC）The insertion program of component includes four basic steps：（1）Medical personnel by pin and conduit together
Insertion patient's vein；（2）After needle point insertion vein, medical personnel will shift patient's onto using his or her finger before conduit
It is intravenous；（3）Medical personnel do not catch the hand of conduit hub end to apply pressure to his or her simultaneously by catching conduit hub end
Pin is recalled in patient's vein of the distal end of conduit to prevent blood from flowing through conduit；And（4）Medical personnel then will with adhesive tape
At present the conduit of insertion adheres to the skin of patient and by the exposed ends of conduit（Catheter hub）Being connected to will be imported into patient's vein
Fluid source.
Problem be after pin is recalled from the vein of patient and then, medical personnel must place exposed needle tip
Nearby position and it is engaged in above-mentioned（3）With（4）The task that item is required.Exactly establish in the exposed needle tip of this very moment
The danger of accidental needle sticks, this is under certain environment so that medical personnel are easy to the infected various dangerous blood because of accidental needle sticks
Liquid propagates pathogen, including AIDS and hepatitis.
If the medical personnel of insertion IV conduits stop according to above step（4）Applied pressure to using second hand quiet
Arteries and veins, then other problem occurs.This can increase the dangerous of patient's infection and result in that medical personnel will clear up may be from
The extra work of the blood that unlimited catheter hub flows out.
Medical personnel are placed in the danger of accidental needle sticks as other pin class types.For example, the doctor of implement injection
It is raw, using straight pin, Hans Huber（Huber）Pin, when having transfusion needle of the wing etc., may by used pin be placed on pallet with
Nurse is allowed subsequently to abandon.Placing the time period between the time that used pin is dropped on pallet or on workbench to it
It is interior, it is used for being potential disease propagation source for the people that works near or around in pin.Therefore, whole pins is required for
The safety of the staff for guaranteeing bigger is covered with when pin is recalled from patient.It is desirable that the program for covering needle tip
Should be passive, self-starting or be at least carried out simple.And, the equipment for covering pin should be it is reliable and
Sane.
The content of the invention
The feature of the disclosure relates generally to IV conduit tube components, and it has for covering needle point after successful venipuncture
The pin protector at end.For the ease of using, the disclosure also include for limit blood flow through catheter hub inner chamber it is elastic close
Sealing.Pin protector, although be described as being used together with conduit tube component in this paper, but also can be with no wire guide above
Different pin types be used together, such as blood collection, seldinger（Seldinger）, intubator or for biopsy
Pin etc..
The example feature of the disclosure includes a kind of conduit tube component, and it includes the conduit with the catheter tube with pipe end
Hub, the catheter hub includes limiting the body of inner chamber, and the inner chamber is included in the first of the distal end of the second inside diameter portion
Diameter portion, and wherein described first inside diameter portion is greater in size than second inside diameter portion.The component also includes
Needle hub with the pin with needle tip, nominal pin diameter and shank, shank is stretched out by catheter hub and catheter tube so that pin
Tip is preparing to be extended in using position the distal end of pipe end.Elastic sealing element can be held against in the inner chamber of catheter hub
On shoulder, the elastic sealing element includes overall diameter and interior diameter, and wherein described interior diameter is bigger than nominal pin diameter enough
It is more than enough so that shank is preparing using the not interior diameter of contact resilient seal in position.Needle tip is covered in protective position
Pin protector can be positioned in the inner chamber of catheter hub and contact resilient seal, and be wherein used to limit fluid stream
Temporary sealing be formed on the position of pin protector contact resilient seal.
Pin protector may include cap in the conduit tube component, and the cap includes domed surface and wherein the domed surface quilt
It is axially loaded on elastic sealing element.The domed surface may also comprise the distal end wall of contact resilient seal.
In conduit tube component when pin protector moves away from elastic sealing element along proximal direction temporary sealing can stop or
Terminate, now fluid can flow freely through the interior diameter of elastic sealing element.
Elastic sealing element can be compressed in the groove in the inner chamber for being positioned at catheter hub Nei and wherein should in conduit tube component
Groove includes shoulder.
Pin protector may include set in conduit tube component, and the set includes interior diameter, overall diameter and length, and is wherein formed
The change of the profile near needle tip has the cross sectional dimensions bigger than the interior diameter of the set.
In conduit tube component pin protector may include contact shank surface, and wherein the contact surface have be applied to it
On coating with when shank is moved on said surface reduce friction.
Conduit tube component can also include installation tool, and the instrument includes the conduit of length direction so that protector is pushed into catheter hub
Inner chamber.
Pin protector can also include arm in conduit tube component, and the arm includes the ancon of the interior surface of contact catheter hub.
Another feature of the disclosure includes conduit tube component, and the conduit tube component includes leading with the catheter tube with pipe end
Pipe hub, the catheter hub includes defining the body of inner chamber that the inner chamber has the interior surface with interior shoulder, and
The needle hub of the pin with needle tip, nominal pin diameter and shank, shank stretches out so that preparing through catheter hub and catheter tube
The distal end of pipe end is extended to using needle tip in position.Elastic sealing element can be held against the inside in the inner chamber of catheter hub
On shoulder, the elastic sealing element includes overall diameter, interior diameter and the side surface being positioned between interior diameter and overall diameter, and
Wherein described interior diameter is than nominal pin diameter greatly enough to many so that shank not contact resilient sealing in preparing using position
The interior diameter of part.Pin protector for covering needle tip in protective position is positioned in the inner chamber of catheter hub, described
Pin protector includes with distal openings and the distal end wall towards distal surface contacted with the side surface of elastic sealing element, and
Temporary sealing wherein for limiting fluid stream is formed on the position of the side surface of pin protector contact resilient seal.
The inner chamber of catheter hub may include the first inside diameter portion in the second inside diameter portion distal end in conduit tube component, and
And wherein the first inside diameter portion is greater in size than the second inside diameter portion.
The second inside diameter portion may include annular projection in conduit tube component.
The first inside diameter portion may include cannelure in conduit tube component.
Conduit tube component can also include be arranged on pin protector distal end wall distal openings at hydrophobic filter with least
Partly cover distal openings.
Pin protector may include the ancon of cap, arm, proximal end wall, distal end wall and bending in conduit tube component, and wherein bend
Ancon contact catheter hub.
Conduit tube component can also include the micro-channel being formed on elastic sealing element.
Pin can also include the profile variations of the near-end for being positioned at needle tip in conduit tube component.
The further feature of the disclosure is the method for manufacturing conduit tube component.As disclosed, the method may include following steps：
The catheter hub with the catheter tube with pipe end is formed, the catheter hub includes defining the body of inner chamber, the inner chamber
With the interior surface with interior shoulder, and form the pin with the pin with needle tip, nominal pin diameter and shank
Hub, shank stretches out through catheter hub and catheter tube so that needle tip extends to the distal end of pipe end in preparing using position.Should
Method can also include elastic sealing element is placed in the inner chamber of catheter hub and against interior shoulder, the elastic sealing element bag
Overall diameter, interior diameter and the side surface being positioned between interior diameter and overall diameter, and wherein described interior diameter are included than nominal pin
Diameter is caused preparing the interior diameter using the not contact resilient seal of shank in position greatly more enough to, and will be used to protect
The pin protector that needle tip is covered in shield position is placed in the inner chamber of catheter hub and and wiper seal contacts.The method can
Also include step：Form temporary sealing to limit the stream by elastic sealing element in the position of pin protector contact resilient seal
Body stream.
Pin protector can have distal end wall in method, and the distal end wall has distal openings and towards distal surface, and its
In towards distal surface contact resilient seal.
Method can also include protector is pushed the inner chamber of catheter hub using the conduit installation tool for including length direction.
Method can also include the hydrophobic filter of the distal openings for being arranged on pin protector.
Method can also include promoting protector to cause the outer surface of the protector to be sealed to the interior diameter of elastic sealing element.
The method can also include addition coating to the surface of the contact shank of pin protector.
In method pin protector can apply force to the inside of catheter hub on the inclined surface in distal end to force pin to protect
Device is leaned against on elastic sealing element.
Description of the drawings
It is to be realized that these and other feature and advantage of this equipment, system and method, because with reference to specification, right will
Summation accompanying drawing can more fully understand to them；In accompanying drawing：
Fig. 1 is the side cross-sectional view of safety IV C that the aspect of equipment, system and method for the invention is provided.
Fig. 2 is the side cross-sectional view of the needle hub of Fig. 1 that needle tip is covered by the pin protector of Fig. 1.
Fig. 3 is the zoomed-in view of the pin protector of Fig. 2.
Fig. 4 is the side cross-sectional view of another safety IV C that the aspect of equipment, system and method for the invention is provided.
Fig. 5 is the side cross-sectional view of another safety IV C that the aspect of equipment, system and method for the invention is provided.
Fig. 6 is the end-view of the Fig. 5 intercepted along line F6-F6.
Fig. 7 is the top view of the perforated metallic sheet that can be used to form pin protector.
Fig. 8 is the side cross-sectional view of another safety IV C that the aspect of equipment, system and method for the invention is provided.
Fig. 9 is that pin protector is activated to stop the side cross-sectional view of safety IV C of Fig. 8 of needle tip.
Figure 10 is the cross-sectional end view of the Fig. 9 intercepted along line F10-F10.
Figure 11 is the side cross-sectional view of another safety IV C that the aspect of equipment, system and method for the invention is provided.
Figure 12 is that pin protector is activated to stop the side cross-sectional view of safety IV C of Figure 11 of needle tip.
Figure 13 is the side view of the installation tool that the aspect of equipment, system and method for the invention is provided.
Figure 14 is the end-view of the installation tool of the Figure 13 intercepted along line F14-F14.
Figure 15 is the side cross-sectional view of the installation tool of the Figure 14 intercepted along line F15-F15.
Specific embodiment
Below in conjunction with the accompanying drawings disclosed specific descriptions are used as providing equipment, system and method for the invention aspect
Safe vein inner catheter or safety IV C presently preferred embodiment description, and be not intended to represent the present invention equipment, be
Only form that system and method can be constructed or utilize.This description is disclosed for constructing and using and shown embodiment
The feature and step of the embodiment of related equipment, system and method for the invention.It should be understood, however, that same or equivalent
Function and structure can be by the realization of different embodiments, these different embodiments are also considered as being included in the spirit of the disclosure
In scope.As indicated elsewhere herein, same component labelling is used to refer to same or like element or feature.Housing
Seal and protector may be alternatively used for the pin without wire guide above.For example, the sharp probe of biopsy needle can be in biopsy
There is described seal and protector in the hub of pin.Equally, catheter tube can tie the antifriction feature with pin protector
It is removed when closing blood collection or seldinger or introducer needle equipment.
Referring now to Fig. 1, safety IV C100 is illustrated, and it includes catheter hub 102 and needle hub 106, and catheter hub 102 is with attached
Catheter tube 104 thereon is connected to, needle hub 106 has the pin stretched out through catheter hub and catheter tube in preparing using position
108, this is understood to prepare for performing venipuncture.Needle hub 106 includes defining the hub body 110 of inner chamber 112, internal
Chamber 112 is positioned with pin protector or tip protector 114 in it.Needle hub 106 similarly has hub body 116, and hub body 116 is limited
Inner chamber or flashback chamber 119 are determined, inner chamber or flashback chamber 119 have the proximal openings with female Rule circular cone.Air can
The ventilation plug of infiltration（It is not shown）The proximal openings that can be positioned in or be attached at the flashback chamber of needle hub are sentenced and made in the component
Used time blood flow spills from needle hub, such as after successful venipuncture.
In the distal end of needle hub 106, nasal portion 118 is reached in near-end female Rule opening of catheter hub 102 and by leading
The near-end end surfaces 120 of pipe hub are blocked against the distal shoulder 122 of needle hub 106.This physical barriers allow needle tip 124
Relative to the correct axially position of the distal end of catheter tube 104.In other examples, nasal portion 118 can be omitted and pin
Tip relative to catheter tube alignment yet by being feasible against surface 120,122.Catheter hub 102 and needle hub 106 it
Between it is radially aligned realized using external alignment device, for example against catheter hub 102 outer surface it is axially extending prominent
Piece 123.The external screw-thread 126 also illustrated that in Fig. 1 is engaged with realization with threaded casing threads, such as set of IV pipes adapter
Pipe.
In one example, nasal portion 119 has axially extending tab 128 with during assembly by pin protector 148
Correct position in the inner chamber 112 for distally shifting catheter hub 102 onto.Although not shown, the size and shape of tab 128 can
It is arranged to promote pin protector and the near-end abutting contact with pin protector 114 is kept after correct position in protector,
As discussed further below.Alternatively, if not including the tab 128 of extension or if the size of tab 128 is improper,
Installation tool so with slit along its length or passage can be used for for pin protector 114 promoting in place.It is such as following
Discussed further, the slit along its length in installation tool allows the side of the instrument to be installed on pin to prevent
Shield device pushes correct position, without the instrument is only slided on the pin from needle tip.Once complete, it is same in installation tool
Longitudinal slit be used to be laterally separated instrument with pin 108.
In shown example, the inner chamber 112 of catheter hub 102 includes the inner cross sectional of the reduction for forming the catheter hub
The annular projection 130 of face size.Therefore, inner chamber 112 be understood to include in the upstream of relatively bigger interior section 132 or
The interior section 130 of the reduction that distal end is close to.When observing in another way, the projection distal end or upstream nominal interior diameter
Comparatively more than the diameter portion of the reduction.In other words, catheter hub has in the relative of less inside diameter portion upstream
Bigger interior diameter.In another example, replace inner projection 130, be provided with cannelure or recess.Therefore, in projection 130
In the case that distal end or the projection are omitted, recess or groove are provided with another embodiment and are led so that pin protector is maintained at
In pipe hub.Recess or groove can be considered the more large inner part relatively in relatively smaller interior section upstream or distal end, and it can
It is considered nominal inside diameter portion.As shown, it is possible to use the combination of groove and projection.
Referring again to Fig. 1 and with reference to Fig. 3, pin protector 114 includes cap 134 and arm 136, and it is in the distal end of proximal end wall 138
Side extends.Distal end wall 140 be provided at the end of arm 136 with figure 3 it is shown protected or protectiveness position in stop
Needle tip 124.The ancon 142 of bending is also arranged on the opposite side of the lip 144 of bending.Cap 134, arm 136, proximal end wall 138
Single or entirety unit can be formed with distal end wall 140.In another example, cap 134 can be formed and arm 136, near
End wall 138 and distal end wall 140 are separate.In another example, distal end wall is formed separately and is attached to arm.Another
In example, the different arm that distal end wall 140 and arm 136 can be extended by the side wall 148 from cap replaces, for example, define in the cap
On otch bias the pin to form leaf spring.The different arm that extends from the side wall of the cap is operable with deflection or to incline
Tiltedly needle tip 124 is in the inner space of cap 138 so that tip 124 is moved to misalignment and can not be from the distal end of cap 134
Expose again in distal openings 150 in wall 152, distal end wall has the dome with rounded comer or dome shape shape.At it
In its example, distal end wall 152 is approximate horizontal and with straight turning.As indicated, arm opening 154 is arranged on arm 136
Above and between proximally-located wall 138 and distal end wall 140 passed through with permission pin.In another embodiment, arm opening 154 is saved
Omit and arm 136 extends from upper proximal wall portion 156, extend parallel to distal end and with pin 108, and distal end wall 140 is from quilt
The arm of change extends downwardly and contacts in the way of spring-biased shank.
As following reference picture 7 is discussed further and above mentioned, pin protector 114 can be manufactured by stamped metal thin plate
Or shaping, for example, punching press stainless steel metal thin plate.Can be by drawing quality steel sheet being allowed in coining technique under relatively high pressure
Contact mould and form distal end wall 152 and cap side wall 158.Depending on the edge of the die parting line and shape for forming drawing quality steel sheet, can
Strike out different pin protectors.Cap can also include sidewall opening 162 to allow the ancon 142 for bending to use in the preparation of Fig. 1
Stretch out from it in position.
Referring again to Fig. 1, elastic sealing element 170 is arranged in the inner chamber 112 of catheter hub.In one example, wrap
The recess or groove 172 for including at least one shoulder is formed in inner chamber 112 to receive elastic sealing element 170.As indicated, providing
Two shoulders.Elastic sealing element 170 is extruded in groove 172 and is defined in groove 172 with its overall diameter or outer surface 173
Surface on sealing, such as shoulder.In one example, elastic sealing element 170 is elastomeric, for example silicones O shapes
Ring or synthetic rubber O-ring.The fluid tight of sealing between elastic sealing element 170 and groove 172 be enough to prevent blood from it
Flow through, such as after successful venipuncture, blood can choose the road through between catheter tube 104 and pin 108 in venipuncture
The inside of annular space inflow catheter hub in the way of being referred to as secondary blood and flash back.
As indicated, elastic sealing element 170 has interior diameter or inner surface 174 and is positioned at OD and ID surfaces 173,174
Between side surface 176.ID174 is selected as, and for example size and shape is arranged to, there is provided the enough gaps around pin.
For example, the ID174 of elastic sealing element can be selected as with sufficiently large size not contact with pin in use.Or, bullet
Property seal 170 interior surface 174 can contact shank and be formed on sealing.In one example, the big I quilt of ID
It is set to about 1.5 times to about 3 times of the diameter or more times than pin.In one example, the side surface of elastic sealing element 170
176 are configured to be sealed on the distal end wall surface 178 of the cap 134 of pin protector 114.For example, when pin protector 114 is mounted
In catheter hub and when being pushed against on elastic sealing element 170, wall surface 178 and elastic sealing element sidewall surfaces 176 in distal end
Between formed sealing flow through from it with preventing or limiting blood flow.As discussed further below, it is close with what pin protector 114 was formed
Therefore envelope is interim sealing, and it terminates or stop in pin protector when moving proximally to.
As discussed earlier, the axial tab 128 in the nasal portion 118 of needle hub is configured to pin protector 114, example
Such as, the proximal end wall 138 of the pin protector promotes for the pin protector to lean against elastic sealing element in the inside of catheter hub to distal end
On 170.In another example, the pin protector is shifted onto using installation tool to distal end, and such as following reference picture 13 and 14 enters one
What step was discussed.Therefore the distal end wall 152 of pin protector 114 should have the cross section bigger than the ID174 of elastic sealing element 170
Size is with the side surface 176 of the elastic sealing element being resisted against between ID and OD.In another example, the distal end of cap 134 is enough
The part being close to of the near-end of distal end wall 152 in the cap of little ID and cap 134 to stretch into elastic sealing element 170 will be close
It is enclosed on the ID.
In one example, the lip 144 of bending and the ancon 142 of bending bear against the interior of pin 108 and catheter hub 102
Portion surface 146, with axially by pin protector 114 be fixed on catheter hub inside and be pushed against on elastic sealing element 170.Bending
Ancon 142 can be stretched out from cap 134 by being formed in the intrinsic side opening 162 of cap, such as following reference picture 6 is discussed further
's.In one example, on the arm surface 180 being close to of the near-end of ancon 142 for bending（Fig. 3）It is arranged to, for example size
Projection 130 or the groove being positioned against with shape in catheter hub, to be maintained at pin protector during to pumpback pin
Until needle tip 124 moves to the near-end of the lip 14 of bending in catheter hub.Arm surface 180 and/or the size and shape of projection 130
Shape can also be arranged to or can be oriented so that arm surface 180 and projection 130 in preparing using position against maintaining
The axial load to elastic sealing element 170 on pin protector 114.
Therefore, as shown in FIG. 1, blood flow is sealed or is at least flow through in elastic sealing element 170 and kept by restriction
Gap between the groove 172 of the elastic sealing element 170 and the gap between elastic sealing element 170 and pin protector 114.One
In individual example, micro-channel and/or micro- protuberance are arranged on the outer surface of elastic sealing element 170 so as to allow the air can be in elasticity
Ventilation is formed between seal and groove 172 but is not large enough to allow blood to flow freely between them.It is alternatively or additional
Ground, seal（It is not shown）, such as hydrophobic filter, the opening 150 for being placed on the cap 134 of pin protector 114 sentences permission
Divulge information but do not allow blood flow.For example, hydrophobic filter thin plate is adhered to the opening 150 of the cap of cap 134 and hereafter allows pin
108 are pierced through in assembling.After successful venipuncture, air can divulge information by hydrophobic filter but blood can not
So that secondary blood flash back can be realized.After usage from catheter hub to pumpback pin during, in hydrophobic filter by pin
The hole of formation can also play a part of wiper to wipe out blood from the outer surface of pin.Therefore hydrophobic filter allows air
Ventilation with allow blood flash back and meanwhile also perform wiping function with the pin after successful venipuncture remove period pin by
Blood is wiped out from the outer surface of pin during pumpback.Exemplary hydrophobic filter is included by spunbond（spunbound）PP、PTFE
Fiber or PCTE（Merlon track-etched membrane）Made by filter, they have be small enough to permission air from its divulge information
By but do not allow the hole that blood passes through.
As described, equipment of the invention, system and method have been understood to include conduit tube component, and it includes attachment
To the catheter tube of catheter hub, catheter hub includes the body for defining inner chamber.Needle hub is attached to including the pin of needle tip
And preparing to be stretched out by catheter hub and catheter tube in using position.Elastic sealing element and pin protector are positioned in conduit
In the inner chamber of hub.Pin protector can be positioned in catheter hub and cause, its contact, close against elasticity in preparing using position
Sealing is otherwise extruded to be formed and the temporary sealing of elastic sealing element by elastic sealing element, and the temporary sealing is in pin
Protector terminates when moving proximally to or terminates.Therefore, component of the invention is understood to include close in catheter hub and elasticity
Sealing between sealing and the sealing between elastic sealing element and pin protector.In another example, seal is arranged on
Threeth sealing with pin of the distal end protector opening to be formed in inside catheter hub.It is identical with the sealing of pin protector, the 3rd
Sealing is also temporary sealing, and it terminates or terminate when pin is moved to the near-end of the 3rd sealing.In some instances, it is close in elasticity
Sealing between sealing and catheter hub can also be temporary sealing, and can be discharged from elastic sealing element in load or pressure
Or allow fluid to leak through when removing.Therefore the component is also understood to include what is terminated with a permanent seal and two
Safety IV C of temporary sealing.If elastic sealing element is only sealed to catheter hub by external load, then the component is understood that
It is to include three temporary sealings.
In catheterization procedure, but blood will flash back in the chamber 119 of needle hub 106 by ventilation plug（It is not shown）Prevent
It spills from needle hub 106.Similarly, blood can flash back to the distal chamber of the catheter hub 102 in the distal end of elastic sealing element 170
In 182, but will not flow freely into or the not near-end room of inflow catheter hub 102, until pin protector is prepared position from it
Put and remove, such as until pin protector is from the rollback of elastic sealing element 170.In one example, temporary sealing can by first from
Catheter hub 102 and catheter tube 104 draw back needle hub 106 and pin 108 terminates, such as by holding catheter hub while proximally direction
Draw back needle hub.When pin 108 can be drawn back, protuberance, gauffer or set 184, broadly referred to as profile variations move on to pin protector
Proximal end wall 138 distal side on and by the girth backstop of the opening 186 limited on proximal end wall.Profile variations 184 have than
The bigger cross sectional dimensions of opening 186 on proximal end wall 138, and therefore, from from the point of view of profile variations 184, along near-end
Direction promotes the proximal end wall of pin protector 114.When pin protector 114 is proximally moved on to, it is removed from ready position
And the sealing between pin protector 114 and elastic sealing element 170 terminates, terminates or otherwise stop.Show at other
In example, profile variations are omitted and pin protector is equipped with least two openings, pin from the opening through.In guard bit
In putting, pin protector is deflected and causes the two openings to incline to catch the outer surface without profile variations of pin.
As shown in FIG. 1, the ancon 142 of bending is slightly in the distal end of projection 130.If it should be understood that the elbow of bending
Portion engages the distal end slope side of projection 130, then has and constant pushes pin protector and elastic packing towards distal end
Part 170 is contacted.When such is the case, then axial direction is avoided the need for and can saved with the contact of axially extending tab 128
The tab 128 of extension.
Fig. 2 is that needle hub 106, pin 108 and the pin of the Fig. 1 after being removed from catheter hub 102 after successful venipuncture are prevented
The side sectional view of shield device 114.As indicated, the arm 136 on pin protector 114 is radially moved on to by distal end wall 140
The distal end of needle tip 124 is moved to so as to stop the needle tip.In another embodiment, profile variations 184 are omitted and generation
Alternately using tether and the two ends of tether are connected to needle hub and pin protector.Tether is configured to by proximally moving
Dynamic needle hub 106 pulls pin protector, and pin protector is removed from catheter hub.If using tether, it will also prevent pin from preventing
Shield device drops from the distal end of pin.In other words, tether prevents needle tip to be pulled through pin protector.
During pin 108 is removed from catheter hub 102, for example, pin is moved in Fig. 2 from position shown in FIG
In shown position, shank is pulled through the lip 144 of the bending on pin protector 114, is kept relative with hour hands protector
The near-end of the static lip 144 that bending is moved on to until needle tip.Depending on the design of the lip 144 of bending, user can feel
Relatively large resistance.Friction can also cause pin protector 114 somewhat to move proximally to until the bending adjacent to pin protector 114
Projection 130 in the contact of arm surface 180 catheter hub of ancon 142.Although friction between shank and the lip of bending 144 with
If it is minimum that distal end wall 140 is left the blunt end of the side of contact shank and compared, but in one example, it is possible to provide subtract
Rub structure further to reduce the friction between pin and pin protector.As shown in FIG. 3, it is the Fig. 2 extracted at A
Zoomed-in view, coating 188 is provided on the lip 144 of at least a portion of distal end wall 140 and bending.By different from distal end wall
140 and bending lip 144 material made by coating 188 can fold or formed sheet be protector before be applied to punching
Press on sheet metal or can be applied after the forming step for forming protector.In one example, coating 188 is by poly- second
Alkene（PE）Material is made.In another example, coating 188 is made up of TEFLON.Coating 188 reduces rubbing for pin protector 114
Coefficient is wiped, this allows pin protector to be optionally formed to the lip 144 not bent, i.e. make distal end wall 140 carry blunt end.
Band is reduced equipment, system and the method that the pin protector 114 of the coating 188 of the coefficient of friction of protector represents the present invention
In addition to conduit tube component and except with elastic sealing element 170 conduit tube component in addition to another aspect.In other words, it is anti-in pin
The shield contact pin 108 of device 114 and in the case of can feeling friction during the near-end that separates itself and catheter hub is moved, coating 188
Can be employed to reduce coefficient of friction and therefore can reduce when static surface hour hands that pin is moved through pin protector are experienced
Resistance.
Therefore, the one side of equipment, system and method for the invention is also understood to include to have and reduces protector
The pin protector 114 of the coating 188 of coefficient of friction.In the another aspect of the equipment, system and method for the present invention, pin protector
114 include cap 114, and the cap includes the distal end wall 152 with opening 150.Protector may additionally include the distal end of proximal end wall 138 and prolong
Stretch and the arm 136 with distal end wall 140, distal end wall 140 has positioning coating 188 at least a portion.In the present invention
In the another aspect of equipment, system and method, the protector of coating can together make with the conduit tube component in the application of safety IV C
With.Conduit tube component can also include elastic sealing element and protector can also include for elastic sealing element against cap, for example
The elastic sealing element illustrated in Fig. 1.
Referring now to Fig. 4, show another conduit tube component 200, its in addition to several the exceptions, leading similar to Fig. 1
Tube assembly 100.Therefore, conduit tube component 200 includes the needle hub 106 with pin 108 and the catheter hub 102 with catheter tube 104.
Catheter hub also includes chamber 112, and the chamber includes elastic sealing element 170 and pin protector 202.As indicated, pin protector 202 includes cap
134 and including the arm 136 of distal end wall 140.In the present embodiment, by the way that the distal end of arm 136 is biased into into pin 108 and catheter hub
On 102 inner surface and make the part of part along its length of cap 134 touch will on the inner surface of catheter hub
Pin protector 202 is placed in the inner chamber 112 of catheter hub.This allows pin protector 202 by both arm 136 and cap 134
Action is placed and is resisted against on elastic sealing element 170.In a preferred embodiment, coating 188 is coated at least in part
, to reduce the coefficient of friction between the distal end of pin 108 and arm 136, for example, the lip 144 of bending is to pin 108 for distal end wall 140
Coefficient of friction.In another embodiment, the lip 144 of bending is omitted and distal end wall 140 is coated with the remote of coating 188
End, i.e. blunt end, the side of contact pin.
Referring now to Fig. 5, show another conduit tube component 210, its in addition to several the exceptions, leading similar to Fig. 1
Tube assembly 100.Therefore, conduit tube component 210 includes the needle hub 106 with pin 108 and with catheter tube 104 and inner surface 146
Catheter hub 102.Projection or groove are not illustrated but there may be and play effect as above.Catheter hub 102 also includes chamber
112, the chamber includes elastic sealing element 170 and pin protector 212.As indicated, pin protector 212 includes cap 134 and including distal end
The arm 136 of wall 140.In the present embodiment, by the way that the distal end of arm 136 is biased on the inner surface of pin 108 and catheter hub and
The elevated part 214 of cap 134, i.e. a part for cap 134 are touched and pacify pin protector 212 on the inner surface of catheter hub
Put in chamber 112 internally.This allows pin protector 212 to be placed and abut to catheter hub in two points provided by cap and arm
On 102 inner surface 146.Because compared with the embodiment of Fig. 4, only the relatively small part of cap 134 contacts catheter hub 102
Inner surface, the embodiment of Fig. 4 has the big part along its length of the cap of contact catheter hub, so moving from catheter hub 102
The power needed during except pin protector 212 is less.In a preferred embodiment, coating 188 is coated at least in part the remote of arm
Coefficient of friction of the end wall 140 with reduction between the distal end of pin 108 and arm 136, such as between the lip 144 and pin of bending
Coefficient of friction.In another embodiment, the lip 144 of bending is omitted and distal end wall 140 is coated with the remote of coating 188
End, i.e. blunt end, the side of contact pin.Coating 188 can sufficiently soft and thickness with protective position（For example, Fig. 2 and 3）Middle capture pin
Tip so that needle tip can not slide along the inner surface of distal end wall 140.If the soft coating for using can capture needle tip, that
Lip 144 in the end of distal end wall 140 can be omitted.
Fig. 6 is the end-view of the conduit tube component of the Fig. 5 intercepted along line F6-F6.As indicated, elevated part 214 is to master
The outer radial of cap body 134 extends to contact the inner surface 146 of catheter hub 102.The ancon 142 of bending is similarly extended radially outwards
To contact the inner surface 146 of catheter hub 102.As indicated, for clarity, in the inner surface 146 of catheter hub or on do not have
Projection or groove.With two contact points of catheter hub 102 be configured to by pin protector 212 be arranged in the inner chamber of conduit and with
Elastic sealing element 170 is axially contact.Also as explained above, if the ancon 142 of bending wants the distal end of engaging groove or projection 130
Sloping portion, then pin protector can act on constant distally directed power on elastic sealing element 170.Also show in figure 6
The proximal end wall 138 with pin 108 in proximal openings 186 is gone out to be arranged on.
Fig. 7 is the top view of the stamped metal thin plate 220 that the aspect of equipment, system and method for the invention is provided.
Thin plate 220 includes most of or Part I 222 and relatively narrower part or Part II 224.Part I 222 has the
One punching press otch 150 and the second relatively bigger punching press otch 162.When being molded with mould, the first otch 150 and adjacent
Surface define Fig. 1-5 cap 134 distal openings 150 and distal end wall 152.Part I 222 can be changed and/or mould
It is altered to create the cap construction for expecting the suitable size and shape of application.Opening 162 allows the ancon 142 of bending outside
Stretch out to contact the inner surface 146 of catheter hub（See, for example Fig. 1）.
The Part II 224 of stamped metal thin plate 220 is configured to define the arm 136 and distal end wall of the protector of Fig. 1-5
140.Part II 224 has the first otch 186 and the second otch 154.When folded, the first otch 186 and adjacent
Surface formed pin protector on proximal end wall 138 and proximal openings 186.The second otch 154 on drawing quality steel sheet is being folded
When formed pin protector arm 136 on opening（Fig. 3）, this allows pin through stretching out.The shape of end part 228 of Part II 224
Into the lip 144 of distal end wall 140, the ancon 142 of bending and optional bending, this can be omitted when including coating 188.Punching press
Sheet metal 220 also includes intermediate width part 225.Intermediate width part 225 is wider with comprising opening 162, and it must be than the
The ancon of the wider bending for enabling to be formed by Part II 224 in two part 224 is passed through and stretched out.Optionally, Part II 224
A part can be washed into than Part II 224 remainder even it is narrower enable to be open 162 and mid portion 225 made
Make relatively narrower.
Fig. 8 is the side elevational cross-section of another conduit tube component 240 that the aspect of equipment, system and method for the invention is provided
Figure, it is in addition to some the exceptions similar to the conduit tube component 100 of Fig. 1.Therefore, conduit tube component 240 is included with pin 108
Needle hub 106 and the catheter hub 102 with catheter tube 104.Catheter hub also includes chamber 112, and the chamber includes being positioned at interior groove 172
Interior elastic sealing element 170 and pin protector 242.As indicated, pin protector 242 includes cap 244 and two arms 134, each arm
All include distal end wall 140.The pin protector 242 of Fig. 8 is similar in 2 months 2012 U.S. Publications 2012/ disclosed in 23 days
0046620A1, United States serial is the protector of 13/257572 Fig. 4-12, and its content is by the religion to pin protector 242
That what is led quotes and is explicitly joined in herein.As discussed in 572 applications, cap 244 can be formed separately and later
Two arms 134 are attached to, the two arms are formed together with proximal end wall 138, proximal end wall 138 has opening 186, the size of opening
The profile variations 184 being set on backstop pin 108.The lip 144 of bending is shown as in the end of two distal end walls, and they can
Each include coating 188 to reduce the coefficient of friction between protector and pin.
Cap has the distal end dome part 246 with distal end wall, and distal end wall includes distal openings 248 and dome extension
250（Fig. 9）, it proximally extends with the distal end in partly covering cap chamber.Cap 244 is additionally included in two of the both sides of pin
Support thing 252（Only illustrate one）.
In one embodiment, two elbows 142 on two arms 134 are inclined by the distal end that peace leans against annular projection 130
On surface, and/or alternatively it is positioned in cannelure, to push away protector forward so that dome 246 is against elastic sealing element 170
To be formed on temporary sealing.In the preparation shown in Fig. 8 uses position, the first sealing is arranged on elastic sealing element 170
And the cannelure 172 of catheter hub between, and the second sealing is arranged between elastic sealing element 170 and dome 246, and it is can
The temporary sealing terminated when pin protector is proximally drawn back.And, if hydrophobic filter is arranged on dome 246
At distal openings 248, the 3rd temporary sealing is just set to suppress, limit or prevent blood proximally to flow through filter with freely
The cavity segment 112 of inflow catheter hub simultaneously flows into pin protector 242.This 3rd temporary sealing can remove pin from hydrophobic filter
When terminate or terminate.
As indicated, the axial tab 128 in the nasal portion 118 of needle hub 106 push away on proximal end wall 138 and keep with it is near
End wall is contacted.This construction is allowed by simply promoting needle hub 106 forward to promote the proximal end wall of pin protector 242 forward
138 are assembled in protector in catheter hub 240.During advancing to distal end to dispose pin protector 242, two Hes of elbow 142
Two arms 134 will curve inwardly when they contact annular protrusion or projection 130 in catheter hub, and will move to
Somewhat resilience behind the distal end of the smallest diameter portion at the peak of projection 130.At the same time, dome 246 will be with elastic sealing element
170 contact and will keep being axially loaded on elastic sealing element because contacting with projection 130 at two elbows 142.Another
In embodiment, gap is provided between nasal portion 118 and proximal end wall 138 in ready position.If being provided with the gap, that
Installation tool can be used instead to dispose protector 242, as discussed further below, rather than by nasal portion
Axial tab 128 is promoted.
As described, equipment of the invention, system and method include conduit tube component, and it includes being attached to catheter hub
Catheter tube, catheter hub includes the body for defining inner chamber.Needle hub is attached to including the pin of needle tip and in standard
It is standby to be stretched out by catheter hub and catheter tube using in position.Elastic sealing element and pin protector are positioned in the inside of catheter hub
In chamber.Pin protector can be positioned in conduit so that it contacts, adjoins or be otherwise distally pushed forward to elasticity
On seal.In one example, two arms are provided with and the two arms is biased in the inner chamber for being formed in catheter hub
Annular projection and/or cannelure in, to maintain the axial load on elastic sealing element.The two arms and annular protrusion
Contact allows the axial force of distal direction to be applied to against on the protector of elastic sealing element.Therefore, first it is sealingly disposed in
Between catheter hub and elastic sealing element, and the second temporary sealing is arranged between elastic sealing element and pin protector, and it can be
Terminate or terminate when proximally removing protector.In another example, seal be located remotely protector opening with
The 3rd temporary sealing being formed in conduit tube component.Therefore, conduit tube component is understood to have by the cap portion for making pin protector
Contact resilient seal and the sealing for suppressing or limiting flowing that formed.The sealing is terminated when parts of vessels is moved
Or the temporary sealing for terminating, parts of vessels is, for example, pin and/or protector.
Fig. 9 be pin 108 be drawn back into and Fig. 8 after needle tip 214 moves to the near-end of two distal end walls 140 conduit group
The side cutaway view of part 240.As indicated, the two arms are no longer biased in the side of pin and are bent radially inward.Distal end wall
140 also radially move to the front of needle tip to stop needle tip.In this process, the dome part 246 of cap 244
Holding contacts to maintain sealing further to move proximally to pin until the point that illustrates from Fig. 9 or position with elastic sealing element 170.
At that time, further proximally mobile of pin will cause profile variations 184 to promote, or say it is to pull from the angle of needle hub, closely
The girth of end opening 186 is so that pin protector 242 to be removed from the near-end of catheter hub.Therefore, catheter hub and elastic sealing element it
Between sealing is set and another sealing that can terminate or terminate is set between elastic sealing element and pin protector.In the present embodiment
In, the temporary sealing is even all remained intact in the initial traveling proximally of pin after successful venipuncture.
In specific example, the sealing between protector and elastic sealing element is included between the cap on protector and elastic sealing element
Sealing.Profile variations contact of the temporary sealing only on pin limits the girth and the mobile girth of opening and/or near
End wall, and therefore mobile pin protector is away from termination during elastic sealing element or ruptures.
Figure 10 is the end pseudosection of the Fig. 9 intercepted along line F10-F10.Show cannelure to the cleaning of this end-view
172nd, elastic sealing element 170, the dome part 246 of pin protector 242, on dome part optionally with hydrophobic filter
Opening 248 and the distal end wall 140 in the end of arm 134 a part.
Referring now to Figure 11, another conduit group that the aspect of equipment, system and method for the invention is provided is shown
The side cutaway view of part 270, it is in addition to some the exceptions similar to the conduit tube component 100 of Fig. 1.Therefore, conduit tube component 270
Including the needle hub 106 with pin 108 and the catheter hub 102 with catheter tube 104.Catheter hub also includes chamber 112, and the chamber includes
The elastic sealing element 170 and pin protector 272 being positioned in interior groove 172.As indicated, pin protector 272 include set 274 and
The arm 278 that its distal end extends.Protector 272 can be manufactured by stamped metal thin plate, similar to the drawing quality steel sheet of Fig. 7.For example, first
Punch-out 222 can be wound to be folded to form in the set distal end extension with forming set 274 and the second punch-out 224
Arm 278.Therefore, the set has by two edge limited die parting lines 279 of the first punch-out 222.Arm 278 is shown as band
There are the distal end 276 of continuous bend rather than the lip of obvious elbow, distal end wall and bending, similar to the protector of Fig. 1.Coating
188 can be applied to the distal end 276 of bending to reduce the coefficient of friction between protector and pin.
In one example, set 274 is formed with length, overall diameter and interior diameter.Preferably, set 274 is interior straight
Footpath is sufficiently above the overall diameter of pin 108 but less than the cross-sectional dimension of profile variations 184.This allows pin 108 relative to set
But 274 move freely through can not move freely through relative to profile variations 184, and profile variations 184 are more than the interior diameter for covering simultaneously
And therefore will abut against the distal end 280 of set and by the distal stop.Therefore, when pin 108 is drawn back from catheter hub 106, for example, exist
Successfully after venipuncture, profile variations 184 will abut against or encounter the distal end 280 of set, and by from the angle of profile variations
Say, push away on set 274 so that it to be separated with elastic sealing element 270, as discussed further below.
Elastic sealing element 170 includes overall diameter 173, interior diameter 174 and positioning side part 176 between them.As institute
Show, the overall diameter for covering 274 is stretched out so that the interior diameter 173 of elastic sealing element compresses and be sealed in set by elastic sealing element 170
On 274 outer surface.Therefore, carry between groove 172 and elastic sealing element 170 and between elastic sealing element 170 and set 274
Sealing is supplied.In order to limit or suppressing the blood flow in the annular space between pin 108 and set 274, can be moistened using medical safe
Lubrication prescription or other benign inserts are sealing the annular space.
Pin protector 272 can pass through to install the pin protector for including covering 274 to quilt on pin 108 by the rear end 96 of pin first
Installed in the inside of catheter hub 102.If profile variations 184 are just formed or set up after protector is installed on pin,
So pin protector can be installed on pin by needle tip.Hereafter elastic sealing element 170 is placed on set 274, such as Figure 11
Shown in.The combination of elastic sealing element 170 and protector 272 now can be pushed into suitable position using installation tool to distal end
Put, below with reference to Figure 13 and 14 installation tool discussed further.Alternatively, insertion instrument can be formed in nasal portion 118
Same shape, and elastic sealing element and pin protector can be pushed into catheter hub by nasal portion 118.Once in the combination is reached
The recess 172 with shoulder in portion chamber, occurs in that drop in resistance will indicate elastic sealing element 170 after the resistance of somewhat higher
Jing is firmly held in groove.
Figure 12 is the side cutaway view of the needle hub 106 and pin 108 removed from the catheter hub of Figure 11, wherein pin protector 272
It is activated at needle tip 124 and avoids accidental needle sticks to cover needle tip.Between the distal end 280 of profile variations 184 and set 274
Engagement prevent set be further moved out pin to distal end.The distal portions 276 of bending block needle tip 124 and prevent
Surprisingly contact with it.
Figure 13 is the side view of the installation tool 84 provided according to aspect disclosed by the invention.Installation tool is included with outer
The elongate body portion 286 of diameter and interior diameter.In some instances, the end 290 of first end 288 and second can have same interior
Portion and external dimensions.In other examples, the end 290 of first end 288 and second can have different inside and outside sizes.This
The length of body portion 286 and the size at the end 290 of first end 288 and second can will be pushed into or be installed in catheter hub by being based on
Specific pin protector or tip protector and adjust or improve.For example, length can be selected as guaranteeing suitably to reach to fill
Protector and/or elastic sealing element are pushed into catheter hub with dividing and long enough from the outside of hub to be grasped or be manipulated.Show
The instrument 284 for going out can be used for by pin protector disclosed in elsewhere herein one of them push away forward and push catheter hub with
The protector peace is leaned against on elastic sealing element 170.Instrument 284 may be alternatively used for arbitrary conduit tube component, these conduit tube components
In axial tab 128 in the nasal portion 118 of needle hub 106 either do not included or too short and fully can not prevent on pin
Shield device had previously pushed ready position.The conduit 292 of length direction is arranged on body 286 to promote to be installed to instrument 284
On pin 108, and only instrument 284 need not be slipped on pin in needle tip 124 or rear end 96.
Figure 14 is the end-view of the instrument 184 of the Figure 13 intercepted along line F14-F14.In one embodiment, instrument 284
It is molded of plastic material with including interior step feature.In another example, instrument is made up of two parts, and they include
Outside cylinder with passage and single step-feature.
Figure 15 is the side cross-sectional view of the instrument 284 of the Figure 14 intercepted along line F15-F15.Instrument has insert 300,
The insert is used together including step-feature 302,304 with the protector 272 with Figure 11.In other examples, can use
Insert of different shapes.Insert 300 can form a part for body 286 or be formed separately and be attached to shell
286.As indicated, step-feature includes the step 302 and back plate 304 of length direction.The step 302 of length direction has first to push away
Dynamic device surface 306 and back plate 304 have the second pusher surface 308.The length of insert 300 and other sizes are selected as
So that insert is placed on the set 274 of the protector of Figure 11 and the contact resilient seal 170 of the first pusher surface 306 is same
When the second pusher surface 308 contact sleeve 274 near-end.When the instrument 284 of insert 300 is pushed forward, two pushers
Surface 306,308 promotes the correct position being combined in catheter hub 102 of elastic sealing element 170 and protector 272 simultaneously.
Although describe in herein the limited embodiment and their part of safety IV C and other pins by
It is specifically described and illustrates in herein, but those skilled in the art will recognize that many improvement and change.For example, different conduit
Component can include in elastic sealing element antibacterial characteristics and protector can be made up of multiple parts and/or including it is extra or its
Its feature.Also, it is to be understood that and it is considered that the feature specifically discussed for a conduit embodiments can be selected to include
In another conduit embodiments, as long as these functions are compatible.The installation tool discussed for example, referring to Figure 11 and 12 can quilt
For installing the protector of Fig. 1, wherein to carry out the instrument some to improve to be adapted to the feature of the protector.Therefore, it should
Understand, can be by with concrete herein according to safety IV C and their part of the principle of disclosed equipment, system and method construction
Mode beyond description embodies.The disclosure is further defined by the following claims.
Claims (34)
1. a kind of conduit tube component, including：
With the catheter tube with pipe end（104）Catheter hub（102）, the catheter hub（102）Including body（110）, institute
Stating body includes limiting inner chamber（112）Interior surface（146）, the inner chamber is included in the distal end of the second inside diameter portion
First inside diameter portion, and wherein described first inside diameter portion is greater in size than second inside diameter portion；
With with needle tip（124）, nominal pin diameter and shank pin（108）Needle hub（106）, shank is by catheter hub
（102）And catheter tube（104）Stretch out so that needle tip extends to the distal end of pipe end in ready position；
It is held against catheter hub（102）Inner chamber（112）In shoulder on elastic sealing element（170）, the elasticity is close
Sealing（170）Including overall diameter（173）And interior diameter（174）；
It is positioned at catheter hub（102）Inner chamber（112）Interior and and elastic sealing element（170）Contact in protective position
Cover the pin protector of needle tip（114、202、212、242、272）；
Wherein described interior diameter（174）Than nominal pin diameter greatly enough to many so that shank not contact resilient in ready position
Seal（170）Interior diameter（174）, and
Wherein described pin protector（114、202、212、242、272）The elastic sealing element is contacted in ready position（170）,
So that in pin protector（114、202、212、242、272）And elastic sealing element（170）Between formed for limiting fluid stream
Sealing, and
Wherein it is sealed in pin protector（114、202、212、242、272）Terminate when proximally moving, now fluid can be certainly
Elastic sealing element is flow through by ground（170）Interior diameter（174）.
2. conduit tube component as claimed in claim 1, wherein pin protector（114、202、212、242）Including cap（134、244）,
The cap includes domed surface（152）And wherein the domed surface by axially loaded to elastic sealing element（170）On.
3. conduit tube component as claimed in claim 1, wherein elastic sealing element（170）It is compressed in the groove including the shoulder
（172）It is interior.
4. conduit tube component as claimed in claim 1, wherein pin protector（272）Including set（274）, the set include interior diameter,
Overall diameter and length, and wherein it is formed in needle tip（124）Neighbouring profile（184）Change has than the set（274）It is interior
The bigger cross sectional dimensions of diameter.
5. conduit tube component as claimed in claim 1, wherein pin protector include the contact surface of contact shank（140、144、
276）, and wherein the contact surface has the coating for applying thereon（188）To move in the contact surface in shank
When reduce friction.
6. conduit tube component as claimed in claim 1, also including installation tool（284）, conduit of the instrument including length direction
（292）With by pin protector（114、202、212、242、272）Push catheter hub（102）Inner chamber（112）.
7. conduit tube component as claimed in claim 1, wherein pin protector（114、202、212、242、272）Including arm（136）,
The arm includes the interior surface of contact catheter hub（146）Ancon（142）.
8. conduit tube component as claimed in claim 1,
Wherein described pin protector（114、202、212、242、272）The elastic sealing element is contacted in ready position（170）
Side surface cause in pin protector（114、202、212、242、272）With the side surface of elastic sealing element（176）Between formed
For limiting the sealing of fluid stream.
9. conduit tube component as claimed in claim 8, wherein catheter hub（102）Inner chamber（112）It is included in the second interior diameter
First inside diameter portion of segment distal, and wherein the first inside diameter portion is greater in size than the second inside diameter portion.
10. conduit tube component as claimed in claim 9, wherein the second inside diameter portion is annular projection（130）.
11. conduit tube components as claimed in claim 8, also include being arranged on pin protector（114、202、212、242）Distal end
Wall（152）Distal openings（150）The hydrophobic filter at place is covering at least in part distal openings（150）.
12. conduit tube components as claimed in claim 8, wherein pin protector（114、202、212、242）Including cap（152）, arm
（136）, proximal end wall（138）, distal end wall（140）And the ancon of bending（142）, and the ancon for wherein bending（142）Contact is led
Pipe hub（102）.
13. conduit tube components as claimed in claim 8, also including being formed in elastic sealing element（170）On micro-channel.
14. conduit tube components as claimed in claim 8, wherein pin also include being positioned at needle tip（124）Near-end profile
（184）Change.
A kind of 15. methods for manufacturing conduit tube component, including：
Formed with the catheter tube with pipe end（104）Catheter hub（102）, the catheter hub（102）Including in defining
Portion chamber（112）Body（110）, the inner chamber is with interior shoulder（172）Interior surface；
Formed with needle tip（124）, nominal pin diameter and shank pin（108）Needle hub（106）, shank is by leading
Pipe hub（102）And catheter tube（104）Stretch out so that needle tip（124）The distal end of pipe end is extended in ready position；
By elastic sealing element（170）It is placed on the inner chamber of catheter hub（112）In and against inside（172）Shoulder, the elasticity
Seal（170）Including overall diameter（173）, interior diameter（174）And the side surface being positioned between interior diameter and overall diameter
（176）,
To be used to cover needle tip in protective position（124）Pin protector（114、202、212、242、272）It is placed on and leads
Pipe hub（102）Inner chamber（112）It is interior so that the pin protector（114、202、212、242、272）Contact resilient seal；
And
In pin protector（114、202、212、242、272）And elastic sealing element（170）Between formed for limit through elasticity
Seal（170）Fluid stream sealing, wherein the pin protector contacts the elastic sealing element；
Wherein described interior diameter（174）Than nominal pin diameter greatly enough to many so that shank not contact resilient in ready position
Seal（170）Interior diameter（174）, and
Wherein it is sealed in pin protector（114、202、212、242、272）Terminate when proximally moving, now fluid can be certainly
Elastic sealing element is flow through by ground（170）Interior diameter（174）.
16. methods as claimed in claim 15, also include protecting on pin using the installation tool of the conduit for including length direction
Device（114、202、212、242、272）Push catheter hub（102）Inner chamber（112）.
17. methods as claimed in claim 15, also include being arranged on pin protector（114、202、212、242）Distal openings
（150）Hydrophobic filter.
18. methods as claimed in claim 15, also including promotion pin protector（114、202、212、242）So that the pin protection
The outer surface of device is sealed to elastic sealing element（170）Interior diameter.
19. methods as claimed in claim 15, also including addition coating（188）To pin protector（114、202、212、242、
272）Contact shank surface（140、144、276）On.
20. methods as claimed in claim 15, wherein pin protector（114、202、212、242、272）Apply force to catheter hub
（146）Inside to the inclined surface in distal end（130）On forcing pin protector（114、202、212、242、272）Lean against bullet
Property seal（170）On.
A kind of 21. conduit tube components, including：
With the catheter tube with pipe end（104）Catheter hub（102）, the catheter hub（102）Including main body（110）, institute
Stating main body includes defining inner chamber（112）Interior surface（146）, the inner chamber（112）With with female Rule circle
The proximal openings of cone；
With with needle tip（124）, profile（184）The pin of change, nominal pin diameter and shank（108）Needle hub（106）,
Shank passes through catheter hub（102）And catheter tube（104）Stretch out so that needle tip extends to the distal end of pipe end in ready position；
It is positioned at catheter hub（102）Inner chamber（112）Internal seal（170）；And
It is positioned at catheter hub（102）Inner chamber（112）It is interior for covering needle tip in protective position（124）Pin protection
Device（114、202、212、242、272）；The pin protector（114、202、212、242、272）Manufactured by metal material and wrapped
Include to have and define opening（186）Girth proximal end wall（138）, the profile（184）Change has than proximal end wall（138）On
Opening（186）Bigger cross sectional dimensions in protective position engaging the profile variations；
It is characterized in that
In the ready position, the sealing for limiting blood flow is formed on the pin protector（114、202、212、242、272）
With the seal（170）Between；And
Work as pin（108）With pin protector（114、202、212、242、272）From catheter hub（102）When being contracted, the sealing end
Only or terminate, wherein allow fluid stream flow through catheter hub（102）.
22. conduit tube components as claimed in claim 21, wherein the pin protector contacts the described internal table of the catheter hub
Face（146）.
23. conduit tube components as claimed in claim 21, wherein the pin protector does not contact the inside of the catheter hub
Surface（146）.
24. conduit tube components as claimed in claim 21, wherein pin protector（114、202、212、242、272）Including cap
（134、244）, the cap include domed surface（152）, and wherein described domed surface contacts the sealing.
25. conduit tube components as claimed in claim 21, wherein the sealing is formed on seal（170）Side surface
（176）With pin protector（114、202、212、242、272）On.
26. conduit tube components as claimed in claim 21, wherein pin protector include the contact surface of contact shank（140、144、
276）, and wherein the contact surface has the coating for applying thereon（188）To move in the contact surface in shank
When reduce friction.
27. conduit tube components as claimed in claim 21, also including installation tool（284）, groove of the instrument including length direction
Road（292）With by pin protector（272）Push catheter hub（102）Inner chamber（112）.
28. conduit tube components as claimed in claim 21, also include being arranged on pin protector（114、202、212、242）Distal end
Opening（150）Hydrophobic filter.
A kind of 29. conduit tube components, including：
With the catheter tube with pipe end（104）Catheter hub（102）, the catheter hub（102）Including main body（110）, institute
Stating main body includes defining inner chamber（112）Interior surface（146）, the inner chamber（112）With with female Rule circle
The proximal openings of cone；
With with needle tip（124）, profile（184）The pin of change, nominal pin diameter and shank（108）Needle hub（106）,
Shank passes through catheter hub（102）And catheter tube（104）Stretch out so that needle tip extends to the distal end of pipe end in ready position；
And
It is positioned at catheter hub（102）Inner chamber（112）It is interior for covering needle tip in protective position（124）Pin protection
Device（114、202、212、242、272）；The pin protector（114、202、212、242、272）Manufactured by metal material and wrapped
Include to have and define opening（186）Girth proximal end wall（138）, the profile（184）Change has than proximal end wall（138）On
Opening（186）Bigger cross sectional dimensions in protective position engaging the profile variations；
It is characterized in that
The pin protector（114、202、212、242、272）Including for preventing from catheter hub in ready position（102）'s
The sealing that inner chamber flows out, and allow to pass through the catheter hub when the sealing terminates（102）Flowing.
30. conduit tube components as claimed in claim 29, wherein the pin protector contacts the described internal table of the catheter hub
Face（146）.
31. conduit tube components as claimed in claim 29, wherein the pin protector does not contact the inside of the catheter hub
Surface（146）.
32. conduit tube components as claimed in claim 29, wherein pin protector include the contact surface of contact shank（140、144、
276）, and wherein the contact surface has the coating for applying thereon（188）To move in the contact surface in shank
When reduce friction.
33. conduit tube components as claimed in claim 29, also including installation tool（284）, groove of the instrument including length direction
Road（292）With by pin protector（272）Push catheter hub（102）Inner chamber（112）.
34. conduit tube components as claimed in claim 29, also include being arranged on pin protector（114、202、212、242）Distal end
Opening（150）Hydrophobic filter.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
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| US201361788766P | 2013-03-15 | 2013-03-15 | |
| US61/788,766 | 2013-03-15 | ||
| US61/788766 | 2013-03-15 | ||
| US13/975986 | 2013-08-26 | ||
| US13/975,986 US8979802B2 (en) | 2013-03-15 | 2013-08-26 | Safety IV catheter assembly with seal |
| US13/975,986 | 2013-08-26 |
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| Publication Number | Publication Date |
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| CN104043181A CN104043181A (en) | 2014-09-17 |
| CN104043181B true CN104043181B (en) | 2017-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209488A1 (en) * | 2017-05-15 | 2018-11-22 | 福建省百仕韦医用高分子股份有限公司 | Puncture assembly for safe indwelling needle, capable of limiting position by means of pull rope |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10463840B2 (en) * | 2015-10-28 | 2019-11-05 | Becton, Dickinson And Company | Compliant catheter adapter having self-slitting needle |
| US10549073B2 (en) * | 2015-10-28 | 2020-02-04 | Becton, Dickinson And Company | Compliant catheter adapter and compression cap |
| US10869993B2 (en) * | 2018-04-05 | 2020-12-22 | Becton, Dickinson And Company | Introducer needle with notches for improved flashback |
| CN112584887B (en) * | 2018-04-18 | 2024-01-12 | B.布劳恩梅尔松根股份公司 | Catheter assembly and related methods |
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| CN1048984A (en) * | 1989-07-10 | 1991-02-06 | 克里蒂康有限公司 | The conduit that has needle gasket |
| CN102939129A (en) * | 2010-05-14 | 2013-02-20 | C·R·巴德股份有限公司 | Catheter placement device and method |
| CN203874254U (en) * | 2013-03-15 | 2014-10-15 | B.布劳恩梅尔松根股份公司 | Safety IV catheter assembly with seal |
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| US8932258B2 (en) * | 2010-05-14 | 2015-01-13 | C. R. Bard, Inc. | Catheter placement device and method |
| JP5890830B2 (en) * | 2010-06-25 | 2016-03-22 | ベー・ブラウン・メルズンゲン・アクチエンゲゼルシャフトＢ．Ｂｒａｕｎ Ｍｅｌｓｕｎｇｅｎ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Holding member and application of the holding member |
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| CN1048984A (en) * | 1989-07-10 | 1991-02-06 | 克里蒂康有限公司 | The conduit that has needle gasket |
| CN102939129A (en) * | 2010-05-14 | 2013-02-20 | C·R·巴德股份有限公司 | Catheter placement device and method |
| CN203874254U (en) * | 2013-03-15 | 2014-10-15 | B.布劳恩梅尔松根股份公司 | Safety IV catheter assembly with seal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018209488A1 (en) * | 2017-05-15 | 2018-11-22 | 福建省百仕韦医用高分子股份有限公司 | Puncture assembly for safe indwelling needle, capable of limiting position by means of pull rope |
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| CN104043181A (en) | 2014-09-17 |
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