CN201719674U - Puncture structural component with medical blood backstreaming observation function - Google Patents
Puncture structural component with medical blood backstreaming observation function Download PDFInfo
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- CN201719674U CN201719674U CN2010202363416U CN201020236341U CN201719674U CN 201719674 U CN201719674 U CN 201719674U CN 2010202363416 U CN2010202363416 U CN 2010202363416U CN 201020236341 U CN201020236341 U CN 201020236341U CN 201719674 U CN201719674 U CN 201719674U
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Abstract
The utility model discloses a puncture structural component with a medical blood backstreaming observation function, which belongs to the field of medical equipment and relates to a medical puncture structural component. Aiming at a pipeline on a puncture structure or a relevant pipeline which is connected with the puncture structure and realizes direct blood circulation, the puncture structural component is provided with a pipeline blocking body with a flow limiting structure, and equivalent circulation aperture of blood circulation of the flow limiting structure is smaller than equivalent circulation aperture of front and rear pipelines adjacent to the flow limiting structure. The puncture structural component has blood backstreaming observation time within a larger range, and guarantees that medical staff has enough time to observe conditions of blood flow during the total puncture and intubation process, thereby increasing puncture and intubation success rate.
Description
Technical field
This utility model belongs to field of medical, relates to a kind of medical thrust construction package.
Background technology
The puncture structure of artery and vein is the apparatus commonly used of medical field.Wherein, commonly used especially is the remaining needle structure.Normally used remaining needle can have the venting plug that one piece of blood back is used on its needle stand, be used for blocking blood flow.Because venting plug front end observation window length and limited aperture, behind the retained needle puncture intravasation, observation window is very fast to be full of by blood, can not continue to observe blood flow again.So, when clinical manipulation, need a kind of can be at retained needle puncture, put in the whole process of pipe and have grace time to continue to dynamic observe the product of blood circumstance.Through relevant patent retrieval, not Related product appearance in the prior art.
The utility model content
For addressing the above problem, the utility model proposes a kind of puncture structure assembly with medical blood returning observation function, can be at retained needle puncture, put pipe and have grace time to continue to dynamic observe blood circumstance in the whole process, thus improve puncture, put the pipe success rate.
This utility model is to realize by following technical scheme:
On the pipeline of puncture structure, or on the related pipeline coupled, the direct conducting of blood energy, line clogging body with flow restriction is being set, and the equivalent conducting aperture of the blood conducting of this flow restriction is less than the equivalent conducting aperture of the front and back pipeline that is adjacent.
Further, this utility model also comprises following technical characterictic:
The equivalent conducting aperture of described flow restriction is adjacent the aperture area ratio between the equivalent conducting aperture of pipeline, between 1: 1000 to 1: 10.
Wear on the back-end location of draw point in corresponding the puncture needle, the line clogging body with flow restriction is being set.
Wear in corresponding in the body of close puncture needle one side of the observation window that the draw point rear end is connected, the line clogging body with flow restriction is being set.
Corresponding trocar sheath blood back capsule seam is being provided with the line clogging body with flow restriction.
Corresponding the outside of observation window position, be provided with prolongation, prolong pipe in order to the medical blood back of observing the blood back situation, prolong on pipe at this medical blood back, near the position of a side of puncture needle the line clogging body with flow restriction is being set.
Described flow restriction aperture, its size range is 0.02-0.5mm, the aperture of supporting observing tube, its size range is 0.2-2.0mm.
Described flow restriction aperture, further preferable range is 0.08-0.25mm, the preferable range in aperture of supporting observing tube be 0.5-1.2mm.
With the length of the corresponding prolongation pipe of described flow restriction and observing tube aperture, its length range is 3-25cm.
Placement scheme between described current limiting tube and the observing tube also comprises following structure one at least,
By the structure of preposition extra heavy pipe → flow restriction → observing tube realization,
Be arranged alternately the above structure in Liang Chu and two places between flow restriction and the observing tube,
The above flow restriction in Liang Chu and two places is set, the common structure that connects place's observing tube of these flow restriction,
A flow restriction is set, and this flow restriction connects the structure of two or more observing tubes.
This flow restriction is set to metering hole, and a side of metering hole is preposition extra heavy pipe, and opposite side is an observing tube.
Described blood back prolongs pipe, include the flow restriction that pipe connecting structure that twin adapter is set is realized, this twin adapter includes two socket grooves, and one of them socket groove is connecting observing tube, and another socket groove is connecting other pipeline configuration that is close with the vascular puncture structure.
On flow restriction or the pairing pipeline of both one of observing tube, be provided with the pipe joint groove.
On blood back prolongation pipe,, be provided with by the clamping action of pipeline being formed the clip of metering function near a side of vascular puncture structure.
Described clip is that its hatch frame is the screw socket type clip of the helix structure that extends internally, and its outer opening is big, and inner opening is little.
Described medical blood back prolongs the end away from vascular puncture structure one side of pipe, is provided with the blood back blocking-up structure of realizing by blood back medicated cap or capsule bag shaped structure.
The set blockage body with metering function is by having the current limliting plug that the blood penetration materials with function realizes.
Described current limliting plug is to realize by the poromerics that comprises active carbon.
The beneficial effects of the utility model are: when adopting said apparatus to carry out vascular puncture, do not change the operation technique of original retained needle puncture, and can be at retained needle puncture, put pipe and have grace time to continue to dynamic observe blood circumstance in the whole process, thereby improve puncture, put the pipe success rate.
Description of drawings
Fig. 1-1 has showed that this has the structural representation of the puncture structure assembly of medical blood returning observation function.
Fig. 1-2 has showed the structural representation of the line clogging body in this utility model.
Fig. 2 is the structural representation that the described blood back of this utility model prolongs pipe.
Fig. 3-1 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is a kind of embodiment.
Fig. 3-2 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is another kind of embodiment, is the enforcement structure of " preposition extra heavy pipe → flow restriction → observing tube ".
Fig. 3-3 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is other embodiment.
Fig. 3-4 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is other embodiment.
Fig. 3-5 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is other embodiment.
Fig. 4 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is other embodiment.
Fig. 5 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is other embodiment.
Fig. 6 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is other embodiment.
Fig. 7 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is other embodiment.
Fig. 8 shows is the profile that blood back prolongs the sectional drawing of flow restriction in the pipe and observing tube, is other embodiment.
What Fig. 9-1 showed is the structural representation that blood back prolongs pipe, is other embodiment.Be provided with among this embodiment in order to realize the clip of clamping action.
Fig. 9-the 2nd, the embodiment shown in corresponding aforesaid Fig. 9-1 is arranged to the described clip of this utility model the embodiment of screw socket type clip.
The specific embodiment
Shown in ginseng Fig. 1-1, showed the described puncture structure 001 of this utility model here with medical blood returning observation function.
For existing puncture structure, mainly include: wear draw point 011 in the puncture needle, puncture needle trocar sheath 012, trocar sheath blood back capsule 013, trocar sheath flank 014, observation window 015 and blood back capsule interface 016.
Wherein, wearing draw point 011 in the described puncture needle is the sharp-pointed thin stripe type pipeline configuration of leading portion, generally is fine steel tube.It is the major function structure when body punctures.Its thickness is set according to the actual requirements flexibly.
Described puncture needle trocar sheath 012, it is enclosed within the periphery of wearing draw point 011 in the puncture needle usually, is generally realized by medical material flexibility, that be fit to keep somewhere, and is just passable such as, the flexibility that the PE plastic material is made, transparent plastic outer sleeve.In use, skin and subcutaneous tissue or blood vessel pass by wearing draw point 011 biopsy needle guide trocar sheath 012 in the puncture needle in general elder generation, and then trocar sheath 012 worn biological tissue's hole that draw point 011 is passed in puncture needle, be inserted among the blood vessel, and keep somewhere a period of time, finish up to relevant medical care precess.
Described trocar sheath blood back capsule 013, it and puncture needle trocar sheath 012 connect as one, and are enclosed within the periphery of wearing draw point 011 rear portion in the puncture needle, are thicker pipeline configurations.
Described trocar sheath flank 014 is mainly used in and plays fixation, can be provided with flexibly as required, or not be provided with.
Described blood back capsule interface 016 mainly plays blood back and dosing effect, can set flexibly as required.
In use, blood in the blood vessel can flow in the observation window 015 through wearing draw point 011 in the puncture needle, observes for the user and wears draw point 011 tip in the puncture needle whether in blood vessel.Be arranged in blood vessel as wearing draw point 011 tip in the puncture needle, then observation window 015 can be seen the activeness blood back; As wearing draw point 011 tip in the puncture needle not in blood vessel, then can't see the activeness blood back in the observation window 015.
This is present existing technical scheme, and its shortcoming mainly is:
In practical operation, observation window 015 very fast meeting is by blood engorgement, and the time of observation is very short.Present various general medical puncture needle suits both domestic and external, when carrying out the human body artery puncture, the blood of its observation window is generally 1-3 second observing time.This is a very of short duration time, requires the doctor to finish the process of puncture and intubation in the so short time, just causes error easily, and the patient for part puncture difficulty then more needs to prolong observing time.
According to the experience in our clinical trial, the blood observing time in observation window, best scope is 5-15 second, and in this time range, the doctor can finish puncture procedure at leisure, accurately observes the state of puncture.
But present technology if want to reach this purpose, just must prolong the length of observation window significantly or connect a prolongation pipe, in this case, will cause unnecessary blood loss of patient and pollution, also is not easy control observing time.
If want to allow blood flow volume that patient loses seldom, also can prolong the observing time of blood simultaneously neatly, must make corresponding structure and change, this is the innovation point that this utility model will be described.
Be directed to this utility model, on the pipeline of whole puncture structure, or on the related pipeline coupled, the direct conducting of blood energy, line clogging body with flow restriction can be set as required, the equivalent conducting aperture of the blood conducting of this flow restriction is less than the equivalent conducting aperture of the front and back pipeline that is adjacent.
" equivalent conducting aperture " described in this utility model refers to concrete structure and character regardless of the physical channel, and under the situation consistent with the blood ducting capacity of particular circle pass pipeline, be exactly the conducting aperture of this circular hole pipeline is equivalent conducting aperture.
Set line clogging body, main purpose is: under the situation that guarantees the normal trickling of the place ahead pipeline blood, the effective aperture of its circulation is reduced suddenly, like this, just can reduce interior blood flow of unit interval significantly.Do the loss that not only can reduce blood like this, and can prolong the blood return time of line clogging body rear end observation structure, thereby prolong observing time.This utility model is all effective to the puncture of artery and vein vascular.
Shown in ginseng Fig. 1-1, line clogging body 020, the position that can be provided with does not limit.For example typical and non-limiting, include:
(1) wear the rear end of draw point 011 in puncture needle, the position near observation window 015 is provided with line clogging body 020;
(2) in the close puncture needle of observation window 015, wear on the cavity of draw point one side, the line clogging body 020 with flow restriction is being set.
(3) at trocar sheath blood back capsule interface 016, the line clogging body 020 with flow restriction is being set.
(4) in the rear end of observation window 015, the blood back observation structure of a prolongation is set, be called blood back and prolong pipe 100, line clogging body 020 is arranged on this blood back prolongs pipe 100;
(5) with (4) same principle of front, this blood back prolongs pipe 100 and can also directly be connected with the blood back capsule 013 or the blood back capsule interface 016 of puncture needle trocar sheath, formation blood back observation structure.
Shown in ginseng Fig. 1-2, showed the basic embodiment of a line clogging body 020 here.(also can describe other embodiment in the following length) for example and without limitation, the cross section of line clogging body 020 is porose, and this pairing structure is exactly a flow restriction 140.These parts are one and have coherent conducting function column structure on the whole.
Certainly, line clogging body 020 can also be provided with other Any shape as required, as long as can satisfy functional requirement, that's all.And concrete way of realization does not limit yet.
According to clinical experience, we record, and the equivalent conducting aperture of described flow restriction is adjacent the aperture area ratio between the equivalent conducting aperture of pipeline, and suitable scope is between 1: 1000 to 1: 10; Certainly, also also non-limiting.
Below, be example with the scheme that blood back prolongation pipe 100 is set in observation window 015 rear end described above, be further described.
Continue to be connected with observation window 015 shown in ginseng Fig. 1-1, be provided with blood back and prolong pipe 100.This blood back prolongs the rear end that pipe 100 is connected observation window 015, and the blood that comes from blood vessel can be transferred in the blood back prolongation pipe 100 through wearing draw point 011 in the puncture needle, observes for the user.Prolong pipe by this blood back, can realize the blood prolongation purpose of observing time effectively, such as, extend to 5-15 second.
Join shown in Figure 2ly, in the present embodiment, blood back prolongs pipe 100, include to be positioned at forward observing tube joint 110, and coupled body 120, body 120 is the main parts that are used to realize overview function.At the end of body 120, be provided with outwards inducing QI but do not have the effusive structure of blood, be called blood back medicated cap 130.
In the present embodiment, this medical blood back prolongs pipe 100 and includes near the line clogging body 020 that includes flow restriction 140 of wearing draw point 011 1 sides in the puncture needle, and the observing tube 150 that is connected with flow restriction, wherein the effective aperture of this observing tube 150 is greater than the effective aperture of flow restriction 140.Wherein, observing tube 150 is the blood circulation cavity part of body 120.The advantage of this structure is: blood flow into the big observing tube in aperture 150 from the little flow restriction 140 in aperture, can fill up observing tube with the longer time, like this, has just prolonged observing time.
Such as, if the aperture of flow restriction 140 is 0.2mm, the aperture of observing tube 150 is 1.0mm, so, the ratio at their interface, aperture is: 1: 25.So, if blood with the flow restriction 140 and observing tube 150 of the full same length of same flow velocity, so, the ratio of required time also is 1: 25.Obviously, this utility model has greatly prolonged the observing time of blood, be conventional art can not compare.
Based on aforesaid utility model thought, various embodiments is arranged.Illustrate below.
Shown in ginseng Fig. 3-1, what show here is the profile that blood back prolongs the sectional drawing of flow restriction 140 in the pipe 100 and observing tube 150.Wherein, the aperture of flow restriction 140 passages should be significantly smaller than the aperture of observing tube 150.
In order to form that part of structure of flow restriction 140, be exactly the line clogging body, they are one.Be the convenience of explanation, represent part-structure with flow restriction 140 below, mark has line clogging body 020 in the drawings, but no longer specifically describes.
As preferred embodiment, flow restriction 140 can adopt capillary tube to realize, the scope in its aperture, and as if the reference structure (be not defined as circular aperture, but can equivalence be circular aperture, down together) that with the circular aperture is equivalence, its diameter is suitably for 0.02-0.5mm; Supporting observing tube 150, as if the reference structure (be not defined as circular aperture, but can equivalence be circular aperture, down together) that with the circular aperture is equivalence, its diameter is suitably for 0.2-2.0mm.
Further, in the specific implementation, the size of flow restriction 140 and observing tube 150, the practical range that is more preferably is:
The diameter of flow restriction 140 is preferably 0.08-0.25mm; The diameter of supporting observing tube 150 is preferably 0.5-1.2mm.
As an example, according to experience clinically, with the length of the above-mentioned corresponding observing tube 150 of flow restriction and observing tube aperture, alternative OK range is 3-25cm.Certainly, under the situation that relevant parameter is adjusted, this scope can change as required.
Based on this utility model thought, also have other various embodiments, continue to be described below:
The ginseng Fig. 3-2 shown in, this scheme, displaying be " preposition extra heavy pipe → flow restriction → observing tube ".
Wherein flow restriction 140 and observing tube 150 are identical with version described above.And preposition extra heavy pipe 160 is the big cavity body structures of aperture ratio flow restriction 140, is arranged on a side of more close vascular puncture structure.This also is a kind of embodiment of the present utility model.
The ginseng Fig. 3-3 shown in, in the present embodiment, demonstration be that the embodiment that Liang Chu and two sentences upper flow structure 140 is set, be arranged alternately between flow restriction 140 wherein and the observing tube 150.Wherein, the big cavity body structure in aperture of first place's flow restriction, 140 back is observing tube 150, the thin flow restriction 140 that is.
Shown in ginseng Fig. 3-4, in the present embodiment, be provided with Liang Chu and two and sentence upper flow structure 140, be specially 3; Certainly, quantity does not limit.These a plurality of flow restriction 140 are connecting an observing tube 150 jointly.
Shown in ginseng Fig. 3-5, in the present embodiment, be provided with a flow restriction 140, this flow restriction 140 is connecting two and two above observing tubes 150, is specially 2 in the present embodiment; Certainly, the quantity of observing tube 150 does not limit yet.
Further, set flow restriction can also be a cavernous structure.Join shown in Figure 4ly, this flow restriction 140 is a cavernous structure, is called metering hole 170.One side of metering hole 170 is preposition extra heavy pipe 160, and opposite side is an observing tube 150.
Further, set flow restriction can also realize by current limliting plug 180.Join shown in Figure 5ly, in the present embodiment, this current limliting plug 180 is fixed on blood back and prolongs in the pipe 100.Utilize current limliting plug 180 to realize the function of flow restriction.And non-limiting, current limliting plug 180 has two kinds of embodiments as preferred embodiment.Scheme 1: inner in current limliting plug 180, as the middle part, the passage that can allow blood flow cross is set, realize the purpose of metering function, as shown in this figure; Scheme 2: in the edge of current limliting plug, the passage that can allow blood flow cross is set, realizes the purpose of metering function, be fine equally.Illustrated here current limliting plug 180 structures are equally applicable to be provided with in other position of puncture structure assembly.
Further, this current limliting plug 180 can also be realized by having the blood penetration materials with function, be called osmosis type current limliting plug in this utility model.A lot of osmosis type materials are realized by micropore; This micropore is exactly a flow restriction.Poromerics has multiple, such as, for example and without limitation, comprise material types such as active carbon, zeolite.In addition, can also select the material of other type for use, as fibrous material etc. with blood penetration function.As shown in Figure 6.
Need to prove that when employing had the blood penetration materials with function and makes the current limliting plug, the flow restriction of current limliting plug was equivalent to an effective aperture.Described here current limliting plug 180 structures with infiltration function can be provided with in other position of puncture structure assembly equally.
Further, join shown in Figure 7ly, this figure shows the flow restriction that realizes by the pipe connecting structure that twin adapter is set.
Shown in the ginseng figure, this twin adapter 200 includes two socket grooves 210, and one of them socket groove 210 is connecting observing tube 150, and another socket groove is connecting other pipeline configuration that is close with the vascular puncture structure, such as preposition extra heavy pipe 160.In the inside of twin adapter 200,, be provided with the flow restriction 140 of conduit form such as the middle part.In the present embodiment, realized the connection of both sides pipelines by twin adapter 200, and to the metering function of blood.
Certainly, can also be the fixed structure of single joint.Join shown in Figure 8ly, just showed a kind of like this embodiment, on flow restriction or the pairing pipeline of both one of observing tube, the pipe joint groove is set.In the present embodiment, observing tube 150 (is provided with pipe joint groove 220, by this pipe joint groove 220, can fixedly has another pipeline of flow restriction 140.Further, also can form flow restriction, describe below in conjunction with accompanying drawing by the clamping action that blood back is prolonged pipe 100.
Shown in ginseng Fig. 9-1, in the present embodiment, prolong on the pipe 100 at blood back, particularly near a side of vascular puncture structure, the side such as near observation window 015 is provided with clip 300.By the clamping action of 300 pairs of pipelines of this clip, dwindle the aperture that blood back prolongs pipe 100 corresponding sites, thereby form flow restriction.
Described clip 300 can also be provided with the version that clamp pressure can be regulated.Various flexible structures are arranged.
As an example, shown in ginseng Fig. 9-2, the described clip 300 of this utility model can also be arranged to screw socket type clip 310.Its hatch frame is the helix structure that extends internally, and outer opening is big, and inner opening is little, like this, in use just can prolong pipe 100 with outer opening clamping blood back earlier, then, if user's observing time, undesirable words just can be adjusted the dynamics of clamping.Outwards adjust, then the aperture of position limiting structure becomes big, and shorten observing time; Inwardly adjust, then the aperture of position limiting structure diminishes, and observing time can corresponding prolongation.
More than be to description of the present utility model and non-limiting, based on other embodiment of this utility model thought, also all among protection domain of the present utility model.
Claims (18)
1. puncture structure assembly with medical blood returning observation function is characterized in that:
On the pipeline of puncture structure, or on the related pipeline coupled, the direct conducting of blood energy, line clogging body with flow restriction is being set, and the equivalent conducting aperture of the blood conducting of this flow restriction is less than the equivalent conducting aperture of the front and back pipeline that is adjacent.
2. the puncture structure assembly with medical blood returning observation function according to claim 1, it is characterized in that: the equivalent conducting aperture of described flow restriction, be adjacent the aperture area ratio between the equivalent conducting aperture of pipeline, between 1: 1000 to 1: 10.
3. the puncture structure assembly with medical blood returning observation function according to claim 1 is characterized in that: wear on the back-end location of draw point in corresponding the puncture needle, the line clogging body with flow restriction is being set.
4. the puncture structure assembly with medical blood returning observation function according to claim 1 is characterized in that: wear on the cavity of draw point one side in corresponding the close puncture needle of observation window, the line clogging body with flow restriction is being set.
5. the puncture structure assembly with medical blood returning observation function according to claim 1 is characterized in that: corresponding trocar sheath blood back capsule seam is being provided with the line clogging body with flow restriction.
6. the puncture structure assembly with medical blood returning observation function according to claim 1, it is characterized in that: corresponding observation window is away from an interior side of wearing draw point, be provided with prolongation, prolong pipe in order to the medical blood back of observing the blood back situation, prolong on pipe at this medical blood back, the line clogging body with flow restriction is being set near the position of a side of puncture needle.
7. the puncture structure assembly with medical blood returning observation function according to claim 6 is characterized in that: described flow restriction aperture, and its size range is 0.02-0.5mm, the aperture of supporting observing tube, its size range is 0.2-2.0mm.
8. the puncture structure assembly with medical blood returning observation function according to claim 7, it is characterized in that: described flow restriction aperture, further preferable range is 0.08-0.25mm, the preferable range in aperture of supporting observing tube be 0.5-1.2mm.
9. the puncture structure assembly with medical blood returning observation function according to claim 6 is characterized in that: with the length of the corresponding prolongation pipe of described flow restriction and observing tube aperture, its length range is 3-25cm.
10. the puncture structure assembly with medical blood returning observation function according to claim 6 is characterized in that: the placement scheme between described current limiting tube and the observing tube, also comprise following structure one at least,
By the structure of preposition extra heavy pipe → flow restriction → observing tube realization,
Be arranged alternately the above structure in Liang Chu and two places between flow restriction and the observing tube,
The above flow restriction in Liang Chu and two places is set, the common structure that connects place's observing tube of these flow restriction,
A flow restriction is set, and this flow restriction connects the structure of two or more observing tubes,
This flow restriction is set to metering hole, and a side of metering hole is preposition extra heavy pipe, and opposite side is an observing tube.
11. the puncture structure assembly with medical blood returning observation function according to claim 6, it is characterized in that: described blood back prolongs pipe, include the flow restriction that pipe connecting structure that twin adapter is set is realized, this twin adapter includes two socket grooves, one of them socket groove is connecting observing tube, and another socket groove is connecting other pipeline configuration that is close with the vascular puncture structure.
12. the puncture structure assembly with medical blood returning observation function according to claim 6 is characterized in that: on flow restriction or the pairing pipeline of both one of observing tube, be provided with the pipe joint groove.
13. the puncture structure assembly with medical blood returning observation function according to claim 6 is characterized in that: on blood back prolongation pipe,, be provided with by pipeline being played the clip that clamping action forms metering function near a side of vascular puncture structure.
14. the puncture structure assembly with medical blood returning observation function according to claim 13 is characterized in that: described clip is that its hatch frame is the screw socket type clip of the helix structure that extends internally, and its outer opening is big, and inner opening is little.
15. the puncture structure assembly with medical blood returning observation function according to claim 6, it is characterized in that: described medical blood back prolongs the end away from vascular puncture structure one side of pipe, is provided with the blood back blocking-up structure of realizing by blood back medicated cap or capsule bag shaped structure.
16. according to claim 1 or 6 described puncture structure assemblies with medical blood returning observation function, it is characterized in that: the set blockage body with metering function is at the middle part or the edge is provided with the current limliting plug of the stopper shape of passage.
17. the puncture structure assembly with medical blood returning observation function according to claim 1 is characterized in that: the set blockage body with metering function is by having the current limliting plug that the blood penetration materials with function realizes.
18. the puncture structure assembly with medical blood returning observation function according to claim 17 is characterized in that: described current limliting plug is to realize by the poromerics that comprises active carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010202363416U CN201719674U (en) | 2010-06-23 | 2010-06-23 | Puncture structural component with medical blood backstreaming observation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202363416U CN201719674U (en) | 2010-06-23 | 2010-06-23 | Puncture structural component with medical blood backstreaming observation function |
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| CN201719674U true CN201719674U (en) | 2011-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862499A (en) * | 2010-06-23 | 2010-10-20 | 邹最 | Puncture structure assembly with medical blood returning observation function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862499A (en) * | 2010-06-23 | 2010-10-20 | 邹最 | Puncture structure assembly with medical blood returning observation function |
| CN101862499B (en) * | 2010-06-23 | 2013-08-14 | 邹最 | Puncture structure assembly with medical blood returning observation function |
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Granted publication date: 20110126 Termination date: 20120623 |