CN202620440U - Catheter and intubator needle assembly - Google Patents
Catheter and intubator needle assembly Download PDFInfo
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- CN202620440U CN202620440U CN 201220075135 CN201220075135U CN202620440U CN 202620440 U CN202620440 U CN 202620440U CN 201220075135 CN201220075135 CN 201220075135 CN 201220075135 U CN201220075135 U CN 201220075135U CN 202620440 U CN202620440 U CN 202620440U
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Abstract
The utility model discloses a catheter and intubator needle assembly. The catheter and intubator needle assembly comprises a catheter with a near end and a far end, a catheter adapter in liquid communicated with the catheter, an extension pipe, an intubator needle, a needle base and a middle elastomer separating component, wherein the adapter has a near end, and a far end connected with the near end of the catheter; the catheter adapter comprises a side opening in liquid communicated with the catheter adapter; the extension pipe is connected with the side opening and is made of polyurethane; the intubator needle has a near end, and a far end arranged inside the catheter; a groove near the far end is formed inside the intubator needle; a groove distance is formed between a near end of the groove and the far end of the intubator needle; the needle base has a near end, and a far end connected with a near end of a needle; the middle elastomer separating component is arranged inside the catheter adapter; a cavity is formed inside the middle elastomer separating component; and the middle elastomer separating component is positioned near the side opening and has a length larger than the groove distance.
Description
Technical field
The application relates to conduit and introducer needle assembly, especially about venous duct and introducer needle assembly.
Background technology
With a little angle skin that conduit and introducer needle assembly pass patient is inserted a blood vessel.Existing many with such conduit and the intravital technology of introducer needle assembly insertion patient.In a kind of insertion technology, introducer needle and conduit are inserted blood vessel together fully.In another kind of technology, initial insert blood vessel after with introducer needle part retraction conduit in.With screw thread conduit is screwed on the pin and with conduit then and inserts blood vessel fully.
In order to confirm that conduit is placed correctly under in the blood vessel, the clinicist confirms the anti-stream of the blood in an anti-stream chamber.Usually will instead flow the part that the chamber forms needle stand.Perhaps, introducer needle can comprise a groove or the hole that forms along its distal portions, so that can observe the anti-stream of blood when being transparent or translucent at least in the annular space between introducer needle and conduit when conduit.Be properly placed in the blood vessel in case confirmed conduit, the clinicist exerts pressure to blood vessel through pressurization downwards on the skin above the blood vessel far-end of the place of introducer needle and conduit.This finger pressure has sealed the further blood flow through introducer needle and conduit, or makes this blood flow minimum at least.The clinicist draws back introducer needle then, and conduit is stayed the appropriate location, and a suitable device is connected to conduit.Such device can comprise an infusion set, a PRN, a block device (deadender) lid or a monitoring of blood pressure detector.
Though typical IV conduit and introducer needle assembly have been carried out their function usually satisfactorily, there is some shortcoming really in they.For example, the step that a conduit is correctly put into patient's blood vessel can cause in an initial venipuncture and an appropriate device and be connected between the conduit, spills the blood of a great deal of from conduit.Because might infect the clinicist, be in-problem so such blood spills from an infected patient.Because that can not cure at present and fatal diseases for example can be through the body fluid exchange next infectious AIDS (" AIDS ") of the infected to another people, this is troubling especially.Therefore, must avoid and the contacting an of AIDS-infected blood.
In order to make spilling of blood minimum, the known near-end that is included in catheter block place one self-packing in spacing body (septum).Conduit should allow introducer needle to extend through spacing body and conduit in this by middle spacing body, so that can be placed in the patient's blood vessel.In addition, in this spacing body allow the clinicist from conduit and spacing body extract the intubate device out, then, spacing body closure introducer needle is fully after catheter block is extracted out.This structure spills the blood from catheter block and reduces to minimum.But, use in one spacing body increased significantly the clinicist for introducer needle from conduit extract out must be applied to the power on the introducer needle.In addition, arranged long period if introducer needle is arranged in spacing body, for example when conduit be to cure the desease among the stock of mechanism before use one, middle spacing body can compression set around introducer needle.The sealing fully of spacing body in when therefrom spacing body is finally extracted out in case this possibly hinder introducer needle, this is against the purpose of spacing body in original the use.And, comprise the occasion of an introducer needle that is formed on a groove wherein in use, if, from conduit extraction introducer needle the time, blood can take place still and spill along the suitably middle spacing body of structure is arranged.
The utility model content
Therefore, one of purpose of the application provides a kind of conduit and introducer needle assembly, and it makes the blood that spills from this assembly minimum during inserting.
The application's another purpose provides a kind of conduit and the introducer needle assembly that uses spacing body in, spacing body even also make the blood that spills from this assembly minimum in the occasion of using a reeded introducer needle in this.
The application's another purpose provides a kind of conduit and the introducer needle assembly that uses spacing body in, and it is minimum that spacing body makes the blood that spills from this assembly in this, but when conduit is extracted out, apply a less resistance above that at introducer needle.
The application's another purpose provides a kind of conduit and the introducer needle assembly that uses spacing body in; Should in spacing body make the blood that spills from this assembly minimum; And can compression set around this pin, thereby even, conduit have also stoped flow of liquid after shifting out effectively through it at introducer needle.
The another purpose of the application provides a kind of conduit and introduces needle assembly, and the material of its extension does not contain ditridecyl phthalate (DEHP), thereby avoids oozing out in use DEHP.
The application's one side provides a kind of conduit and introducer needle assembly, and it comprises: the conduit with a near-end and a far-end; The catheter mount that is communicated with ductal fluid, this jointer have a near-end and a far-end that links to each other with the near-end of conduit, and catheter mount comprises the lateral port with the catheter mount fluid connection; Extension is connected to said lateral port, and this extension is to be processed by polyurethane; Have a near-end and the introducer needle that is arranged on a far-end of catheter interior; Needle stand with a near-end and far-end of the near-end that is connected in pin; And be arranged in the catheter mount and be formed with spacing body in the elastomer in a chamber; Should in spacing body be positioned at lateral port near; Introducer needle forms the groove near the far-end of this introducer needle; And between the far-end of near-end of groove and introducer needle, form a groove distance, the length of middle spacing body is greater than this groove distance.
In some embodiments, conduit and introducer needle assembly are included in a jointer of its proximal end, and this jointer comprises at least one alar part that radially extends from it.Catheter mount also comprises a lateral port that is communicated with catheter fluid.Spacing body is arranged near this lateral port near-end, catheter mount in one.In spacing body stop any liquid to flow into or flow out the near-end of catheter mount, thereby and change any fluid of inflow catheter inner chamber over to lateral port.In spacing body have a chamber, it makes in introducer needle passes spacing body above that resistance minimum when conduit is extracted out.
In some embodiments, introducer needle is connected to a needle stand at its near-end, and is preferably included at least one groove in the sidewall, i.e. a hole or opening, and this groove is communicated with the introducer needle inner chamber.In introducer needle, form this groove, make blood can flow into the open distal end of introducer needle, inner chamber and the groove in the introducer needle outside that passes in the introducer needle gets into conduit cavity.Therefore, blood can flow through the annular space between the inboard of the outside of introducer needle and conduit and catheter mount, and passes lateral port then and from the catheter mount extension.Preferably, conduit, catheter mount and extension are transparent or translucent at least.With this mode, the clinicist when introducer needle inserts patient's blood vessel immediately with the blood reflux stream that is easy to see through these parts of conduit tube component.
In some embodiments, middle spacing body forms a near-end solid section and a far-end solid section, and consequently said chamber is formed between near-end solid section and the far-end solid section, and wherein, the far-end solid section has the same with said groove distance at least length.
In some embodiments, the far-end solid section receives the radial compression of catheter mount.
In some embodiments; Spacing body kept in the body during middle spacing body was arranged on; Should keep body to be arranged in the catheter mount by middle spacing body, and middle spacing body comprise middle spacing body proximal part and middle spacing body distal portions, formation one chamber between spacing body proximal part and the middle spacing body distal portions in this.
In some embodiments, middle spacing body proximal part is a part that separates with middle spacing body distal portions.
In some embodiments, middle spacing body distal portions keeps body to remote extension through spacing body in said, so that said middle spacing body distal portions receives the radial compression of said catheter mount.
After the clinicist had confirmed that conduit is correctly put into patient's blood vessel, the clinicist was through extracting introducer needle out to proximal direction pull needle stand from conduit.Middle spacing body must have enough length, makes the groove of introducer needle and open far-end can be arranged in spacing body simultaneously.This guarantees that when conduit is extracted introducer needle out, blood not taking place spills.If middle spacing body is too short, the far-end of the opening of introducer needle possibly be arranged in the distant place side of the far-end of spacing body, at the blood flow path, and groove possibly be arranged in nearly side's side of the near-end of spacing body simultaneously.Like this, when introducer needle is drawn out of, will allow blood to spill from conduit.Middle spacing body has formed a chamber, and this chamber makes the resistance on this pin minimum when it is drawn out of at introducer needle.
Description of drawings
After reading attached drawings and being described in detail, the application's above and other purpose and advantage will be obvious.Drawings show the application's preferred embodiment.Identical label is represented identical part in the accompanying drawing.
Fig. 1 is provided with a monoblock type conduit of spacing body in the application's the lower resistance and the axonometric chart of inserter needle assembly.
Fig. 2 is the exploded perspective view that is provided with a monoblock type conduit tube component of spacing body in the application's the lower resistance.
Fig. 3 is along the application's of Fig. 1 center line 3-3 the conduit and the three-dimensional cutaway view of inserter needle assembly; Showed conduit and introducer needle assembly among first embodiment of spacing body in inserting the lower resistance that is provided with the application of protected by treatment, wherein the part of introducer needle assembly is represented by dotted lines.
After Fig. 4 has showed that conduit tube component inserts in the patient body; But before introducer needle is extracted out from conduit tube component fully; When the distal portions of introducer needle is arranged among the distal portions of spacing body, be similar to the application's of Fig. 3 conduit and the three-dimensional cutaway view of inserter needle assembly.
Fig. 5 is after conduit tube component inserts in the patient body; But before introducer needle is extracted out from conduit tube component fully; When the distal portions of introducer needle is arranged among the proximal part of spacing body, be similar to the application's of Fig. 3 conduit and the three-dimensional cutaway view of inserter needle assembly.
Fig. 6 is after conduit tube component inserts in the patient body, introducer needle fully when conduit is extracted out, the three-dimensional cutaway view of the application's of similar Fig. 3 conduit tube component.
Fig. 7 is the cutaway view along the part of the monoblock type conduit that does not have introducer needle of spacing body in the lower resistance that is provided with the application of the line 7-7 of Fig. 1, and it has showed the structure of first embodiment of the application's who is arranged in conduit lower resistance spacing body.
Fig. 8 is similar to the conduit of Fig. 3 and the three-dimensional view of introducer needle assembly, but has showed in introducer needle and the application's lower resistance different relations between the spacing body, and wherein the end far away of introducer needle is the distant place side that is arranged in the far-end of spacing body.
Fig. 9 is similar to the conduit of Fig. 4 and the three-dimensional cutaway view of introducer needle assembly, but has showed in introducer needle and the application's lower resistance different relations between the spacing body, and wherein the end far away of introducer needle is arranged among the distal portions of spacing body.
Figure 10 is similar to the conduit of Fig. 5 and the three-dimensional cutaway view of introducer needle assembly, but has showed the different relations of one between the spacing body in introducer needle and the application's lower resistance, and wherein the end far away of introducer needle is arranged among the proximal part of spacing body.
Figure 11 is the cutaway view of Fig. 7 of a part that is similar to the monoblock type conduit of spacing body in the lower resistance that is provided with the application, but has showed the structure of second embodiment of the application's who is arranged in conduit lower resistance spacing body.
The specific embodiment
As when using in this article, term " near " be meant with respect to device, when normal the use near the clinicist of this device of operation and from a coupled patient position farthest to use this device.On the contrary, term " far away " be meant with respect to device, when normal the use this device of leave operation clinicist farthest and near a coupled position with the patient that uses this device.
As used herein, term " top ", " on ", " making progress " be meant the position radially leaving the longitudinal axis of this device with respect to this device, when normal the use and leave patient's skin.On the contrary, when using in this article, term " end ", D score, " downwards " are meant with respect to longitudinal axis this device, that radially leave this device when normal the use with towards a position of patient's skin.
As used herein, term " interior " or " upcountry " be meant relative this device, normal use the time towards the inboard position of device.On the contrary, as used herein, term " outward " or " outwards " are meant this device, the position when normal the use outside device relatively.
The identical part that is shown among the different embodiment with identical label list is in this article narrated the application.Narrate the application though this paper combination has an exsert IV conduit (" monoblock type conduit ") of the extension of 11 body, should be appreciated that the application can be applicable to other conduit.For example; The application can be applicable to the exsert IV conduit of standard, and the inlying catheter and the hope that require pin to be connected in the extension of needle stand through a stilet (stylet) comprise that spacing body is to regulate other medical apparatus that flows into or flow out a spatial fluid flow in one.In addition, although but many multi-form embodiment satisfy the application, the application's shown in the drawings and that be described in detail at this paper preferred embodiment, and the application's protection domain is defined by the following claims.
In Fig. 1 generally by 10 show spacing body in the lower resistance that comprises the application a monoblock type conduit and an introducer needle assembly.Conduit tube component 20 comprises the conduit 21 that attaches to catheter mount 24.The suitable material that is used for conduit 21 comprises but is not limited to thermoplastic resin, for example PEP (FEP), politef (PTEE), polyurethane and analog.Preferably, the polyurethane of a remollescent thermoplastic hydrophilic property is processed conduit 21 by being exposed to the physiological status that exists in the patient body.In addition, the material that is used to form conduit 21 is preferably transparent or is translucent at least.This can make the clinicist see the blood reflux stream in the annular space between introducer needle and conduit 21, and wherein introducer needle comprises near its far-end to allow a groove or the hole of such blood flow.The suitable material that is used for catheter mount 24 includes, but are not limited to the thermoplastic polymerization resin, for example Merlon, polystyrene, polypropylene etc.The material that preferably is used to form catheter mount 24 is transparent or translucent at least, to let the clinicist see wherein blood reflux stream.
In some embodiments, extension 25 is to process with polyurethane (Polyurethane) material.In some embodiments, extension 25 is to process with the thermoplastic polyurethane material.In some embodiments, extension 25 is to process with Estane 58277 materials of Lubrizol company.The material of the application's extension 25 does not contain ditridecyl phthalate (DEHP), has therefore avoided in use oozing out DEHP.
The near-end of catheter mount 24 is with 29 sealings of spacing body in, to guarantee that fluid can not spill from the near-end of catheter mount.Preferably, middle spacing body 29 is formed by two parts, a proximal part 29a and a distal portions 29b, this two-part each all sever in advance place an introducer needle 31 so that pass it.In spacing body distal portions 29b provide prevent flow of liquid pass through in the primary seal of spacing body 29, simultaneously in spacing body proximal part 29a one auxiliary seal is provided.Though middle spacing body 29 can form by one, so because the middle spacing body of two-piece type is easier to make and cheaply use two.In addition, form by two parts that separate in spacing body 29 increased fracture strength and be convenient to be fitted into catheter mount 24.Preferably middle spacing body distal portions 29b is formed by identical materials with middle spacing body end parts 29a and has identical hardness.The suitable material that is used for spacing body 29 comprises the elastomer of a peroxide cure, polyisoprene for example, and silicone etc., wherein material has the hardness in 35-45 Shore A scope.Preferably have an open proximal end and an open distal end one in spacing body housing 27 surround with an interference fit at least a portion of spacing body proximal part 29a and middle spacing body distal portions 29b, middle spacing body 29 is remained in the appropriate location in the catheter mount 24.Perhaps, middle spacing body 29 can be placed in the catheter mount 24, and does not use shell spare 27.But shell spare 27 is convenient to middle spacing body 29 is placed in the catheter mount 24.Shown in all accompanying drawings, housing 27 only extends along the proximal part of middle spacing body distal portions 29b.But if desired, housing 27 can all extend or only extend along middle spacing body distal portions 29b along the whole length of middle spacing body 29.For such structure, be appreciated that housing 27 is configured to it puts on middle spacing body 29 with required pressure, but not catheter mount 24 is discussed like the back.The near-end of the opening of housing 27 and far-end allow an introducer needle 31 to extend through middle spacing body 29, pass housing 27.A part of surf zone of the proximal end face of spacing body 29 and extension above that during preferably the near-end of housing 27 abuts against.This structure prevents that another medical apparatus is connected to the near-end of catheter mount 24.Replace, any medical apparatus that should be connected to catheter mount 24 should be connected to the fluid access device (not shown) of the proximal end that is positioned at extension 25.
Middle spacing body 29 forms a chamber or hollow 29c between middle spacing body proximal part 29a and middle spacing body distal portions 29b.When introducer needle 31 when conduit tube component 20 is extracted out, this makes the resistance on the introducer needle 31 reduce to minimum.In in 29 pairs one standards of spacing body the test of spacing body show that the mean resistance that has the middle spacing body 29 of chamber 29c is about 0.15 pound, and do not have a chamber one in the mean resistance of spacing body be about 0.30 pound.The size in chamber should form and make resistance minimum, but it should be too not big, otherwise, to stay wherein if gather at liquid, it can become one of growth of microorganism and hold the pond.Chamber 29c can have a cylindrical shape, and is for example shown in Figure 7.But preferably chamber 29c has a shape for example shown in Figure 11, and wherein proximal segment is roughly one cylindrically, and the stage casing is the taper that increases at the distal direction diameter, and section far away is the taper that reduces at the distal direction diameter.Preferably, this tapering should be to horizontal plane between about 2 degree and about 10 degree.This structure has reduced at introducer needle 31 possibly become the volume that blood holds the dead space in pond when conduit 21 is extracted out.Thereby the cross section of chamber 29c should closely be approximately the cross section of the large needle that can be used for introducer needle 31.Preferably, the length of chamber 29c about 6 and about 8 millimeters between.If desired, chamber 29c answers certain material of filling, stays wherein to prevent that unwanted material from gathering.If for example a lubricious material of a silicone liquid or gel is placed in the 29c of chamber the characteristic of the reduction resistance of spacing body 29 during this material also can be used for improving.
The occasion of spacing body 29 in the ground connection that links to each other with the introducer needle that wherein has a groove 33 31 is used, middle spacing body 29 should be distance between the near-end of the far-end of introducer needle 31 and groove 33.Blood spilt from conduit tube component 20 when this prevented from conduit tube component 20 extraction introducer needles 31.As shown in Figure 8; During extracting introducer needle 31 out; When distant place side and the groove 33 that is arranged in spacing body distal portions 29b when the far-end of introducer 31 is arranged in chamber 29c; Blood can flow in the introducer needle 31 with inflow chamber 29c in, but because the proximal part of middle spacing body proximal part 29a, blood can not flow out conduit tube component 20.As shown in Figure 9, during extracting introducer needle 31 out, when the far-end of introducer needle 31 is arranged in the distal portions of spacing body distal portions 29b, no longer include a blood flow path, thereby blood flow can not spill from conduit tube component 20 through introducer needle 31.At last, shown in figure 10, the proximal part of spacing body proximal part 29a was smeared and is wiped the introducer needle 31 that the left blood flow above that of any possibility is arranged during the continuous extraction of introducer needle 31 allowed.
Perhaps, the distal portions of the proximal part of middle spacing body proximal part 29a and middle spacing body distal portions 29b separately can be at least with the near-end of groove 33 in the sidewall of holding and be formed on introducer needle 31 far away of introducer needle between distance the same long.See Figure 4 and 5.This size guarantees can between the near and distally of middle spacing body distal portions 29b or middle spacing body proximal part 29a, not produce flow passage through introducer needle 31.This will be minimum at the blood introducer needle 31 bleeds chamber 29c when therefrom spacing body distal portions 29b extracts out in.
In order to make the resistance on introducer needle 31 minimum, the proximal part of the distal portions of middle spacing body distal portions 29b and middle spacing body proximal part 29a should be longer than about 3 millimeters.Preferably, the length of the distal portions of middle spacing body distal portions 29b should about 2 and about 3 millimeters between, simultaneously in spacing body proximal part 29a proximal part length should about 1 and about 2.5 millimeters between.
Introducer needle assembly 30 comprise have by an inclined-plane form one sharply hold far away 32 with the introducer needle 31 that is connected in a near-end of a needle stand 34.Introducer needle 31 is preferably formed and has a longitudinal axis of the longitudinal axis that is in substantially parallel relationship to conduit and introducer needle assembly 10 by rustless steel.Introducer needle 31 can be formed with in sidewall, near the groove 33 (i.e. a hole or opening) of far-end, flow into the far-end of the opening of introducer needle 31 to allow blood, flow out the annular space that groove 33 gets between conduit 21 and introducer needle 31 then.If conduit 21 is translucent at least, the clinicist can observe blood reflux stream immediately after successful venipuncture.In addition, when blood flows into extension 25, and if extension 25 be translucent at least, the clinicist also can observe blood reflux stream there.If desired; In introducer needle 31, do not form under the situation of groove, needle stand 34 can comprise having the anti-stream chamber that one of an open near-end forms as one, and this near-end is sealed flow of liquid by a breather plug; All breather plugs allow the air-flow mistake, but do not allow the flow of liquid mistake.Needle stand 34 can be formed by the material with the same type that forms catheter mount 24.Certainly, can utilize other material to form needle stand 34.
For conduit 21 is put into a patient's blood vessel, the clinicist catches monoblock type conduit and introducer needle to form, and introducer needle 31 and conduit 21 are vertically alignd with target blood.Sharp-pointed hold far away 32 inclined-plane should basic side when venipuncture to the direction of leaving skin surface.The clinicist makes sharp-pointed end far away 32 target approach blood vessels with a little angle, preferably less than about 35 degree insertion tube device pin 31 and conduit 21 are inserted skins.Process and in introducer needle 31, form the occasion of groove 33 by trnaslucent materials at least at conduit 21, catheter mount 24 and extension 25; The clinicist can observe along conduit 21, in catheter mount 24, flow with last blood reflux in extension 25 then.Perhaps, in introducer needle 31, do not form groove if an anti-stream chamber is arranged in needle stand 34, the clinicist will observe the blood reflux stream in the anti-stream chamber that in needle stand 34, forms.
After in having confirmed introducer needle 31 and conduit 21 target approach blood vessel, the clinicist axially inserts endovascular appropriate location towards far-end with conduit 21 along introducer needle 31.In some technology, advance to before the endovascular appropriate location introducer needle 31 fully partly in the retraction conduit 21 at conduit 21.Accomplish suitably place conduit 21 after, the clinicist must be placed on her finger of another hands on the skin near the patient of the blood vessel top of the far-end top of conduit 21 usually.Be placed on patient's the skin through finger and on skin, apply sufficient pressure, thereby the clinicist will stop through the blood flow of conduit 21 basically or make its minimum at least her.But, through spacing body in the lower resistance of in a monoblock type conduit, using the application, because middle spacing body 29 will stop blood to spill from conduit tube component 20, so the clinicist will need not apply this pressure.Then, through needle stand 34 is moved to near-end, the clinicist will extract introducer needle 31 out from conduit.Handle from catheter mount 24 taking-up introducer needle 30 assemblies and according to the processing regulations of this mechanism.Equally, because middle spacing body 29, blood will not spill from catheter mount 24.This allows the clinicist adequate time to be arranged with a liquid conveyer, the treatment that a PRN, block device lid or some other blood monitoring device are connected to conduit tube component 20 and begin to be planned.The clinicist can crooked both wing portions 26 then, the profile one of they and patient's skin is made peace utilize sewing hole 28 conduit tube component 20 to be connected to patient's skin.Perhaps, the clinicist can enough belts be the skin that is fixed in patient with conduit tube component.
Therefore, can see an IV conduit and sleeve inserter needle assembly are provided that it even is using the occasion of a fluted introducer needle during inserting, can make the blood that spills from this assembly minimum; When introducer needle when conduit is extracted out, it applies a less resistance on introducer needle; And wherein, around this pin, compression set does not take place in the middle spacing body in conduit tube component, thereby even after conduit is extracted introducer needle out, middle spacing body has stoped the liquid flow through it effectively.
Claims (20)
1. conduit and introducer needle assembly is characterized in that it comprises:
Conduit with a near-end and a far-end;
The catheter mount that is communicated with ductal fluid, this jointer have a near-end and a far-end that links to each other with the near-end of conduit, and catheter mount comprises the lateral port with the catheter mount fluid connection;
Extension is connected to said lateral port, and this extension is to be processed by polyurethane;
Have a near-end and the introducer needle that is arranged on a far-end of catheter interior;
Needle stand with a near-end and far-end of the near-end that is connected in pin; And
Be arranged in the catheter mount and be formed with spacing body in the elastomer in a chamber; Should in spacing body be positioned at lateral port near; Introducer needle forms the groove near the far-end of this introducer needle; And between the far-end of near-end of groove and introducer needle, form a groove distance, the length of middle spacing body is greater than this groove distance.
2. conduit as claimed in claim 1 and introducer needle assembly is characterized in that: said chamber has a cylindrical shape.
3. conduit as claimed in claim 1 and introducer needle assembly is characterized in that: said chamber has a conical by its shape.
4. conduit as claimed in claim 3 and introducer needle assembly is characterized in that: conical by its shape has a part at least, and this part has a tapering that increases towards distal direction.
5. conduit as claimed in claim 3 and introducer needle assembly is characterized in that: conical by its shape has a part at least, and this part has a tapering that reduces towards distal direction.
6. conduit as claimed in claim 1 and introducer needle assembly is characterized in that: also comprise the gel that is arranged in the said chamber.
7. conduit as claimed in claim 1 and introducer needle assembly is characterized in that: also comprise the lubricious material that is arranged in the said chamber.
8. conduit as claimed in claim 1 and introducer needle assembly; It is characterized in that: middle spacing body forms a near-end solid section and a far-end solid section; So that said chamber is formed between near-end solid section and the far-end solid section; Wherein, the far-end solid section has the same with said groove distance at least length.
9. conduit as claimed in claim 8 and introducer needle assembly is characterized in that: said far-end solid section receives the radial compression of catheter mount.
10. conduit as claimed in claim 1 and introducer needle assembly; It is characterized in that: spacing body kept in the body during spacing body was arranged in said; Should keep body to be arranged in the catheter mount by middle spacing body; And spacing body proximal part and middle spacing body distal portions during middle spacing body comprises form a chamber between spacing body proximal part and the middle spacing body distal portions in this.
11. conduit as claimed in claim 10 and introducer needle assembly is characterized in that: the spacing body proximal part is a part that separates with middle spacing body distal portions in said.
12. conduit as claimed in claim 11 and introducer needle assembly is characterized in that: the spacing body distal portions keeps body to remote extension through spacing body in said in said, so that said middle spacing body distal portions receives the radial compression of said catheter mount.
13. conduit as claimed in claim 12 and introducer needle assembly is characterized in that: said chamber has a cylindrical shape.
14. conduit as claimed in claim 12 and introducer needle assembly is characterized in that: said chamber has a conical by its shape.
15. conduit as claimed in claim 14 and introducer needle assembly is characterized in that: said conical by its shape has a part at least, and this part has a tapering that increases to distal direction.
16. conduit as claimed in claim 14 and introducer needle assembly is characterized in that: said conical by its shape has a part at least, and this part has a taper that reduces to distal direction.
17. conduit as claimed in claim 10 and introducer needle assembly is characterized in that: also comprise the gel that is arranged in the said chamber.
18. conduit as claimed in claim 10 and introducer needle assembly is characterized in that: also comprise the lubricious material that is arranged in the said chamber.
19. conduit as claimed in claim 1 and introducer needle assembly is characterized in that: said polyurethane material is the thermoplastic polyurethane material.
20. conduit as claimed in claim 19 and introducer needle assembly is characterized in that: said polyurethane material is Estane 58277 materials that Lubrizol company produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220075135 CN202620440U (en) | 2012-03-02 | 2012-03-02 | Catheter and intubator needle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220075135 CN202620440U (en) | 2012-03-02 | 2012-03-02 | Catheter and intubator needle assembly |
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| CN202620440U true CN202620440U (en) | 2012-12-26 |
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| CN 201220075135 Expired - Lifetime CN202620440U (en) | 2012-03-02 | 2012-03-02 | Catheter and intubator needle assembly |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106620943A (en) * | 2015-10-28 | 2017-05-10 | 贝克顿·迪金森公司 | Compliant catheter adapter and compression cap |
| CN107530526A (en) * | 2015-05-15 | 2018-01-02 | 泰尔茂株式会社 | Catheter assembly |
| CN107913461A (en) * | 2015-10-28 | 2018-04-17 | 贝克顿·迪金森公司 | With the submissive pipe joint for autotomying suture needle |
| CN111032137A (en) * | 2017-07-19 | 2020-04-17 | 贝克顿·迪金森公司 | Integrated peripheral intravenous catheter with improved extension tube port probe access |
| JP2020523108A (en) * | 2017-06-08 | 2020-08-06 | ベクトン・ディキンソン・アンド・カンパニーＢｅｃｔｏｎ， Ｄｉｃｋｉｎｓｏｎ Ａｎｄ Ｃｏｍｐａｎｙ | Fixed septum |
-
2012
- 2012-03-02 CN CN 201220075135 patent/CN202620440U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107530526A (en) * | 2015-05-15 | 2018-01-02 | 泰尔茂株式会社 | Catheter assembly |
| CN113041479A (en) * | 2015-05-15 | 2021-06-29 | 泰尔茂株式会社 | Catheter assembly |
| CN113041479B (en) * | 2015-05-15 | 2023-02-28 | 泰尔茂株式会社 | Catheter assembly |
| CN107913461A (en) * | 2015-10-28 | 2018-04-17 | 贝克顿·迪金森公司 | With the submissive pipe joint for autotomying suture needle |
| CN106620943A (en) * | 2015-10-28 | 2017-05-10 | 贝克顿·迪金森公司 | Compliant catheter adapter and compression cap |
| CN107913461B (en) * | 2015-10-28 | 2020-10-30 | 贝克顿·迪金森公司 | Compliant catheter adapter with autogenous cutting needle |
| CN106620943B (en) * | 2015-10-28 | 2020-12-04 | 贝克顿·迪金森公司 | Compliant catheter adapter and compression crown |
| US11628273B2 (en) | 2017-06-08 | 2023-04-18 | Becton, Dickinson And Company | Septum securement |
| JP2020523108A (en) * | 2017-06-08 | 2020-08-06 | ベクトン・ディキンソン・アンド・カンパニーＢｅｃｔｏｎ， Ｄｉｃｋｉｎｓｏｎ Ａｎｄ Ｃｏｍｐａｎｙ | Fixed septum |
| JP2022051879A (en) * | 2017-06-08 | 2022-04-01 | ベクトン・ディキンソン・アンド・カンパニー | Septum fixation |
| JP7325559B2 (en) | 2017-06-08 | 2023-08-14 | ベクトン・ディキンソン・アンド・カンパニー | septum fixation |
| JP7065891B2 (en) | 2017-06-08 | 2022-05-12 | ベクトン・ディキンソン・アンド・カンパニー | Septum fixed |
| CN111032137A (en) * | 2017-07-19 | 2020-04-17 | 贝克顿·迪金森公司 | Integrated peripheral intravenous catheter with improved extension tube port probe access |
| CN111032137B (en) * | 2017-07-19 | 2022-04-15 | 贝克顿·迪金森公司 | Integrated peripheral intravenous catheter with improved extension tube port probe access |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |