CN209422645U - Blood transfusion needle assemblies in fetal spaces - Google Patents
Blood transfusion needle assemblies in fetal spaces Download PDFInfo
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- CN209422645U CN209422645U CN201820955889.2U CN201820955889U CN209422645U CN 209422645 U CN209422645 U CN 209422645U CN 201820955889 U CN201820955889 U CN 201820955889U CN 209422645 U CN209422645 U CN 209422645U
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- fetal
- casing tube
- thread
- indwelling casing
- spaces
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Abstract
The utility model discloses needle assemblies of transfusing blood in a kind of fetal spaces, comprising: indwelling casing tube, end are detachably connected with the blood transfusion apparatus for transfusing blood into fetal spaces；Be threaded through in indwelling casing tube and can opposite indwelling casing tube plug the puncture needle for being used to puncture fetal umbilical vein；The disconnecting prevention structure that indwelling casing tube front end is deviate from from umbilical vein when being used to prevent from transfusing blood into fetal spaces on indwelling casing tube or on puncture needle outer wall is set；Wherein, the indwelling casing tube is made of a soft.Blood transfusion needle assemblies, easy to use in the fetal spaces of the utility model, and indwelling casing tube will not be deviate from out of fetal umbilical vein when transfusing blood for fetal in utero, improves success rate of operation, is not required to patient in transfusion procedure and firmly stares at, and alleviates patient's tense situation, reduction fatigue.
Description
Technical field
The utility model relates to needle assemblies of transfusing blood in the field of medical instrument technology more particularly to a kind of fetal spaces.
Background technique
Present a variety of causes can cause the fetus anemia in pregnant woman uterus, and carry out fetal in utero blood transfusion and be one having
The remedy measures of effect can effectively save fetal life, extend pregnant week, improve fetal survival rate.
Existing intrauterine transfusion needle assemblies are the rigid puncture needle that metal needle core adds metallic outer sheath.Puncture needle enters umbilical vein
Afterwards, needle core is taken out, syringe needle connects blood transfusion apparatus and transfuses blood.Intrauterine transfusion operation, which need to generally carry out or so half an hour, can be only achieved
Therapeutic effect, but fetus has activity during this period, and umbilical cord can also wave because of movement of the foetus, and which results in the offices of existing puncture needle
It is sex-limited.Due to being metal solid structure, it is difficult to which fixed, once umbilical cord will lead to vascular wall tearing and cause big bleeding even activity
Foetal death.Further, since syringe needle can not be fixed on intravascular in transfusion procedure, during the blood transfusion procedure of half an hour, need
Manipulator patient stares at that needle point is not active constantly, so that the hand of patient and eye-level are nervous, and even if in this way, the needle point of syringe needle
Also it is easy to deviate from from blood vessel or pierces through blood vessel and lead to operative failure.
Summary of the invention
The purpose of this utility model is exactly to solve the above-mentioned problems, to provide a kind of fetal spaces interior needle assemblies of transfusing blood, make
With conveniently, indwelling casing tube will not be deviate from out of fetal umbilical vein when transfusing blood for fetal in utero, improve success rate of operation, transfusion procedure
In be not required to patient and firmly stare at, alleviate patient's tense situation, reduce fatigue.
For the above-mentioned purpose for realizing the utility model, the interior blood transfusion needle assemblies of fetal spaces provided by the utility model include: to stay
Casing is set, end is detachably connected with the blood transfusion apparatus for transfusing blood into fetal spaces；It is threaded through in indwelling casing tube and can be opposite
The puncture needle for being used to puncture fetal umbilical vein of indwelling casing tube plug；It is arranged on indwelling casing tube or on puncture needle outer wall and is used for
The disconnecting prevention structure that indwelling casing tube front end is deviate from from umbilical vein when preventing from transfusing blood into fetal spaces；Wherein, the indwelling casing tube is by soft
Soft material is made.
Wherein, the disconnecting prevention structure has more anticreeps of its axially extending along the indwelling casing tube and opposite axial movement
Silk, anti-thread-releasing front end extends out to deviate from out of fetus umbilical vein to prevent the indwelling casing tube after stretching out in indwelling casing tube front end.
Preferably, the indwelling casing tube is made of flexible plastic.
In particular, indwelling casing tube is the tubing made of polyvinyl chloride.
Wherein, the anti-thread-releasing is thin wire；Preferably, the diameter of wire is 2-4mm.
Wherein, the indwelling casing tube includes: the casing sheet for the perforating that its center has for passing through for the puncture needle
The interconnecting piece for being detachably connected with the blood transfusion apparatus is arranged in body, end；The anti-thread-releasing peace of sleeve body inner wall is set
Structure is set, the anti-thread-releasing is placed in anti-thread-releasing installing structure；The temporary tank at interconnecting piece center is set.
Wherein, the anti-thread-releasing installing structure includes: that ring is located at described sleeve pipe inner body wall and axially extending more along its
Fin；The placement hole for being used to dispose an anti-thread-releasing at its center is axially opened in along fin.
Further, the anti-thread-releasing installing structure further include be nested with it is intrinsic for will be described a plurality of in described sleeve pipe
The connector sleeve that fin is connected as one.
Alternatively, the anti-thread-releasing installing structure is that ring is located at described sleeve pipe inner body wall and along its axially extending multiple peace
Set slot.
Wherein, the puncture needle includes needle body and the grab handle convenient for drawing that connect with needle body end.
Further, the disconnecting prevention structure also has for being fixedly connected with the end of the more anti-thread-releasings to move
The anti-drop rod of the anti-thread-releasing.
Wherein, the puncture needle is fed through the anti-drop rod of the disconnecting prevention structure.
Wherein, the puncture needle outer wall ring sets multiple grooves for disposing the more anti-thread-releasings.
Compared with prior art, blood transfusion needle assemblies have the advantages that in the fetal spaces of the utility model embodiment
1, blood transfusion needle assemblies in the fetal spaces of the present embodiment, indwelling casing tube is made of a soft, quiet into Fetal Umbilical
It can be bent after arteries and veins, so as to continue deeper into the traveling of umbilical vein blood vessel, and indwelling set can be prevented by disconnecting prevention structure
Pipe is deviate from easily from umbilical vein is intravascular, will not tear umbilical vein blood vessel, can preferably adapt to umbilical cord in pregnant woman uterus
It waves, is not easy during long-time is transfused blood, improve blood transfusion effect.
2, blood transfusion needle assemblies in the fetal spaces of the present embodiment, easy to use, indwelling casing tube will not when transfusing blood for fetal in utero
Deviate from out of fetal umbilical vein, improves success rate of operation, be not required to patient in transfusion procedure and firmly stare at, alleviate patient's anxiety shape
State reduces fatigue.
The utility model embodiment is described in detail with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the semi-cutaway of blood transfusion needle assemblies in the utility model embodiment fetal spaces；
Fig. 2 is the right view of blood transfusion needle assemblies in the utility model embodiment fetal spaces；
Fig. 3 is that the anti-thread-releasing of the utility model embodiment disconnecting prevention structure stretches out in the schematic diagram after indwelling casing tube；
Fig. 4 is the structural schematic diagram of the puncture needle of the utility model embodiment；
Fig. 5 is the semi-cutaway of the disconnecting prevention structure of the utility model embodiment；
Fig. 6 is the left view of the utility model embodiment disconnecting prevention structure；
Fig. 7 is the semi-cutaway of the first structure of the utility model embodiment indwelling casing tube；
Fig. 8 is the right view of the first structure of the utility model embodiment indwelling casing tube；
Fig. 9 is the right view of second of structure of the utility model embodiment indwelling casing tube.
Specific embodiment
As shown in Figure 1, Fig. 2 is that this is practical for the semi-cutaway of blood transfusion needle assemblies in the fetal spaces of the utility model embodiment
The right view of blood transfusion needle assemblies in new embodiment fetal spaces, as seen from Figure 1, Figure 2, fetus provided by the embodiment of the utility model
Intracavitary blood transfusion needle assemblies include: indwelling casing tube 3, and end is detachably connected (figure with the blood transfusion apparatus for transfusing blood into fetal spaces
In follower is not shown)；It is threaded through in indwelling casing tube 3 and what can be plugged with respect to indwelling casing tube 3 is used to puncture fetal umbilical vein
Puncture needle 1；Be arranged on indwelling casing tube 3 or on 1 outer wall of puncture needle for prevent into fetal spaces transfuse blood when indwelling casing tube 3 before
Hold the disconnecting prevention structure deviate from from umbilical vein；Wherein, indwelling casing tube 3 is made of a soft.
Specifically, as shown in Figure 5, Figure 6, the disconnecting prevention structure of the present embodiment has axially extending and opposite along indwelling casing tube 3
More anti-thread-releasings 2 (the present embodiment use 4 anti-thread-releasings) that indwelling casing tube 3 moves axially and for the end with more anti-thread-releasings 2
End is fixedly connected to move the anti-drop rod 21 of anti-thread-releasing 2.When needing to carry out blood transfusion procedure, by puncture needle 1 from indwelling casing tube 3
Then interior extraction pushes anti-drop rod 21 forward, so that 2 front end of anti-thread-releasing is stretched out in 3 front end of indwelling casing tube, stretch out in anti-thread-releasing 2
After indwelling casing tube 3, due to of no force, so that 2 front end of anti-thread-releasing expands outwardly and is greater than the outer diameter of indwelling casing tube 3, thus anti-
Only indwelling casing tube 3 is deviate from out of fetus umbilical vein and leads to operative failure during blood transfusion procedure.
Wherein, in order to make anti-thread-releasing 2 may be implemented to stretch out the purpose expanded outwardly after indwelling casing tube 3, the present embodiment is prevented
Running 2 uses thin wire, it is preferred that and the diameter of wire is 2-4mm, and wire is made of relatively soft material, with
Just it can radially be expanded along indwelling casing tube 3 after stretching out indwelling casing tube 3.It, can be true according to concrete condition when performing the operation when design
Determine the length that anti-thread-releasing 2 stretches out indwelling casing tube 3, such as determines that the more stretchings of anti-thread-releasing 2 are stayed according to the diameter of fetal umbilical vein blood vessel
The length of casing 3 is set, after stretching out indwelling casing tube 3 so as to more anti-thread-releasings 2, contact can be expanded to or be hooked on fetal umbilical vein
On blood vessel.
Wherein, as shown in Figure 7, Figure 8, the indwelling casing tube 3 of the present embodiment includes: that its center has for wearing for puncture needle 1
The interconnecting piece 31 for being detachably connected with blood transfusion apparatus is arranged in the sleeve body for the perforating crossed, end, wherein interconnecting piece 31
It can be using being threadedly coupled with blood transfusion apparatus, the outer diameter of interconnecting piece 31 is greater than the outer diameter of sleeve body, and the outer surface of interconnecting piece 31
Can be set into the prior art convenient for the shape (not shown) that is connect with blood transfusion apparatus；The anti-of sleeve body inner wall is set
Running installing structure, more anti-thread-releasings are placed in anti-thread-releasing installing structure；The temporary tank 30 of 31 inner wall of interconnecting piece is set.Its
In, when design, the internal diameter of temporary tank 30 should be slightly bigger than the outer diameter of anti-drop rod 21, so as to before anti-thread-releasing is pushed out of sleeve body
When end, anti-drop rod 21 can be temporarily placed in temporary tank 30, not interfere for indwelling casing tube to be connected with blood transfusion apparatus.
Wherein, the anti-thread-releasing installing structure of the present embodiment can be using such as flowering structure, comprising: ring is located at sleeve body inner wall
And along its axially extending a plurality of fin 32 (the present embodiment uses four fins)；Along the axial use for being opened in its center of fin 32
In the placement hole for disposing an anti-thread-releasing 2, it is preferred that placement hole is round placement hole, and anti-thread-releasing uses section for circular gold
Belong to silk.When assembly, puncture needle 1 is threaded through in the cavity that a plurality of fin 32 surrounds.
Further, as shown in figure 9, anti-thread-releasing installing structure can also include be nested in sleeve body for will be more
The connector sleeve 33 that fin 32 is connected as one, when assembly, puncture needle 1 is threaded through in connector sleeve 33.
Anti-thread-releasing installing structure can also be set in sleeve body inner wall ring along sleeve body other than using the above structure
Axially extending multiple resettlement groove (not shown)s, it is preferred that resettlement groove uses cross section for the resettlement groove of arc, so as to
Cross section is that circular anti-thread-releasing can be plugged in resettlement groove.
No matter anti-thread-releasing installing structure use which kind of structure, anti-thread-releasing all can facing sleeve ontology move along its axis, with
Sleeve body front end (as shown in Figure 3) can be stretched out in, realizes the purpose expanded outwardly.
Wherein, other than anti-thread-releasing installing structure is set on indwelling casing tube, it can also set and be used in puncture needle outer wall ring
Dispose multiple grooves of more anti-thread-releasings 2.
Wherein, can be bent, continued deeper into the traveling of umbilical vein blood vessel after so that indwelling casing tube 3 is entered fetal umbilical vein
The indwelling casing tube 3 of blood vessel, the present embodiment is made of a soft, the tubing as made of using flexible plastic, it is preferred that indwelling casing tube
3 be the tubing made of polyvinyl chloride.
Wherein, as shown in figure 4, the puncture needle 1 of the present embodiment includes needle body and what is connect with needle body end be convenient for drawing
Grab handle 11, the outer diameter of grab handle 11 are greater than the outer diameter of needle body.Since puncture needle need to be fed through the anti-drop rod 21 of disconnecting prevention structure, because
This, when design, the puncturing hole that 21 center of anti-drop rod opens up should be greater than the outer diameter of needle body.Preferably, the needle body of puncture needle 1 can be adopted
It is made of the material of the puncture needle needle body of the prior art.
Preferably, it can also be arranged protective case in indwelling casing tube front end, the needle point sleeve of puncture needle 1 is set to protective case
It is interior, it avoids when not in use medical staff being caused to accidentally injure in blood transfusion needle assemblies.
Wherein, it should be noted that puncture needle 1, the diameter of indwelling casing tube and length can be according to the need in actual use
Ask determining.
In the following, being described to using the process that blood transfusion needle assemblies are transfused blood in the fetal spaces of the utility model.
When needing to carry out intracavitary blood transfusion to fetus, puncture needle 1 is first pushed, reveals the needle point of its needle body from indwelling casing tube front end
Out, then puncture needle 1 is extracted out of indwelling casing tube, forward by the umbilical vein blood vessel that the needle point of puncture needle 1 punctures fetus
Disconnecting prevention structure is pushed, so that the front end of its anti-thread-releasing is exposed to indwelling casing tube front end, and the exposed parts of anti-thread-releasing are expanded (very outwardly
Throat aspirate inside pipe wall can extremely be resisted), prevent indwelling casing tube from the intravascular abjection of the umbilical vein of fetus, finally, by blood transfusion apparatus
It is connect with the interconnecting piece of indwelling casing tube, blood transfusion procedure is carried out to fetus by blood transfusion apparatus.
In conclusion compared with prior art, blood transfusion needle assemblies have as follows in the fetal spaces of the utility model embodiment
Advantage:
1, blood transfusion needle assemblies in the fetal spaces of the present embodiment, indwelling casing tube is made of a soft, quiet into Fetal Umbilical
It can be bent after arteries and veins, so as to continue deeper into the traveling of umbilical vein blood vessel, and indwelling set can be prevented by disconnecting prevention structure
Pipe is deviate from easily from umbilical vein is intravascular, will not tear umbilical vein blood vessel, can preferably adapt to umbilical cord in pregnant woman uterus
It waves, is not easy during long-time is transfused blood, improve blood transfusion effect.
2, blood transfusion needle assemblies in the fetal spaces of the present embodiment, easy to use, indwelling casing tube will not when transfusing blood for fetal in utero
Deviate from out of fetal umbilical vein, improves success rate of operation, be not required to patient in transfusion procedure and firmly stare at, alleviate patient's anxiety shape
State reduces fatigue.
Although being explained in detail above to the utility model embodiment, the utility model embodiment is without being limited thereto, this
Those skilled in the art can modify according to the principle of the utility model embodiment, therefore, all practical new according to this
The various modifications that the principle of type embodiment carries out all should be understood as falling into the protection scope of the utility model embodiment.
Claims (10)
1. needle assemblies of transfusing blood in a kind of fetal spaces characterized by comprising
Indwelling casing tube, end are detachably connected with the blood transfusion apparatus for transfusing blood into fetal spaces；
Be threaded through in indwelling casing tube and can opposite indwelling casing tube plug the puncture needle for being used to puncture fetal umbilical vein；
Be arranged between indwelling casing tube and puncture needle outer wall for preventing from transfusing blood into fetal spaces when indwelling casing tube front end from navel
The disconnecting prevention structure of vein abjection；
Wherein, the indwelling casing tube is made of a soft.
2. needle assemblies of transfusing blood in fetal spaces according to claim 1, which is characterized in that the indwelling casing tube is by flexible plastic system
At.
3. needle assemblies of transfusing blood in fetal spaces according to claim 1, which is characterized in that the disconnecting prevention structure has along described
Indwelling casing tube is axially extending and its more anti-thread-releasing moved axially, anti-thread-releasing front end stretch out in outside behind indwelling casing tube front end relatively
Expansion is deviate from out of fetus umbilical vein to prevent the indwelling casing tube.
4. needle assemblies of transfusing blood in fetal spaces according to claim 3, which is characterized in that the indwelling casing tube includes:
Its center has a sleeve body of the perforating for passing through for the puncture needle, end setting for the blood transfusion
The interconnecting piece that device is detachably connected；
The anti-thread-releasing installing structure of sleeve body inner wall is set, and the anti-thread-releasing is placed in anti-thread-releasing installing structure；
The temporary tank at interconnecting piece center is set.
5. needle assemblies of transfusing blood in fetal spaces according to claim 4, which is characterized in that the anti-thread-releasing installing structure packet
It includes:
Ring is located at described sleeve pipe inner body wall and along its axially extending a plurality of fin；
The placement hole for being used to dispose an anti-thread-releasing at its center is axially opened in along fin.
6. needle assemblies of transfusing blood in fetal spaces according to claim 5, which is characterized in that the anti-thread-releasing installing structure also wraps
It includes and is nested in the intrinsic connector sleeve for a plurality of fin to be connected as one of described sleeve pipe.
7. needle assemblies of transfusing blood in fetal spaces according to claim 4, which is characterized in that the anti-thread-releasing installing structure is ring
It is located at described sleeve pipe inner body wall and along its axially extending multiple resettlement groove.
8. needle assemblies of transfusing blood in fetal spaces according to claim 1, which is characterized in that the puncture needle include needle body and with
The grab handle convenient for drawing of needle body end connection.
9. according to needle assemblies of transfusing blood in the described in any item fetal spaces of claim 3-7, which is characterized in that the disconnecting prevention structure is also
With for being fixedly connected with the end of the more anti-thread-releasings to move the anti-drop rod of the anti-thread-releasing.
10. needle assemblies of transfusing blood in fetal spaces according to claim 3, which is characterized in that the puncture needle outer wall ring sets use
In the multiple grooves for disposing the more anti-thread-releasings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955889.2U CN209422645U (en) | 2018-06-21 | 2018-06-21 | Blood transfusion needle assemblies in fetal spaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955889.2U CN209422645U (en) | 2018-06-21 | 2018-06-21 | Blood transfusion needle assemblies in fetal spaces |
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| CN209422645U true CN209422645U (en) | 2019-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820955889.2U Active CN209422645U (en) | 2018-06-21 | 2018-06-21 | Blood transfusion needle assemblies in fetal spaces |
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| CN (1) | CN209422645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113827844A (en) * | 2021-10-01 | 2021-12-24 | 昆明医科大学第一附属医院 | Umbilical vein catheterization device for labor room |
-
2018
- 2018-06-21 CN CN201820955889.2U patent/CN209422645U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113827844A (en) * | 2021-10-01 | 2021-12-24 | 昆明医科大学第一附属医院 | Umbilical vein catheterization device for labor room |
| CN113827844B (en) * | 2021-10-01 | 2023-08-04 | 昆明医科大学第一附属医院 | Umbilical vein tube placing device for antenatal room |
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