CN208710673U - The not damaged needle group in venous transfusion port - Google Patents
The not damaged needle group in venous transfusion port Download PDFInfo
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- CN208710673U CN208710673U CN201820513387.4U CN201820513387U CN208710673U CN 208710673 U CN208710673 U CN 208710673U CN 201820513387 U CN201820513387 U CN 201820513387U CN 208710673 U CN208710673 U CN 208710673U
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- transfusion port
- cork
- sleeve pipe
- puncture needle
- venous transfusion
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Abstract
The utility model discloses a kind of not damaged needle group in venous transfusion port, including the pedestal being mutually coupled and puncture needle component, the pedestal includes the shell of coaxial arrangement, cork, casing, infusion channel is equipped in the shell, the infusion channel is connected with the hollow portion of described sleeve pipe, the cork is used to block the upper opening of the shell, the puncture needle component includes needle stand and fixed puncture needle thereunder, and the end of the puncture needle punctures through the cork and stretches out after the hollow portion of described sleeve pipe from the distal end of casing.The utility model effectively prevent cutting of the not damaged needle when puncturing to the resistance bacterium flexible glue of transfusion port under the premise of smoothly not damaged needle can be connected with transfusion port, it is ensured that the normal use of instrument, from the generation for avoiding unnecessary malpractice at all.
Description
Technical field
The utility model relates to medical article fields, specifically, more particularly to a kind of defeated for puncturing implantable vein
The not damaged needle group at liquid port.
Background technique
Transfusion port is specific to transfusion port with not damaged needle and a kind of transfusion needle for designing, usually by wing portion and phase
The needle body part composition vertical for plane where wing portion.Usually needle body part is vertically penetrated in transfusion port when in use, so
Afterwards by wing portion and sufferer personnel skin to patch, with the not damaged needle of fixation.The internal structure of transfusion port can refer to patent
Shown in WO2014177298, at least there is a shell with medical fluid runner and be fixed at the cover top portion and supply lossless
Hurt the resistance bacterium flexible glue of pin puncture.
In actual use, transfusion port is configured to be fixed in sufferer personnel's body, will be not damaged when needing to be infused
Needle is punctured from resistance bacterium flexible glue and is used, and is extracted not damaged needle from resistance bacterium flexible glue when not needing infusion, compact flexible glue structure
The gap moment of not damaged needle after extraction can be crowded with.The concrete structure schematic diagram of common not damaged needle general at present is as schemed
Shown in 1 and Fig. 2, there is infusion channel in needle body part；In order to successfully puncture, the bottom of the needle body part is cut with wedge shape
Mouthful, such structure can clearly show that in patent CN201720256972.6.But such structure will lead to a comparison
Serious problem, if dotted portion 100 has been actually formed cutting edge in Fig. 1,2, in not damaged needle downwards from the puncture of resistance bacterium flexible glue
In the process, cutting edge can cut resistance bacterium flexible glue, and the multiple puncture of not damaged needle will form multiple cutting.In this way, first
It will affect the compactness of resistance bacterium flexible glue, severest consequences are to will form gap in resistance bacterium flexible glue, can not be formed and be hindered to transfusion port
Bacterium effect；The elastomer particles of next resistance bacterium flexible glue being cut are possible to that the medical fluid stream of transfusion port can be brought by medical fluid
In road, cause its blocking, more fatal is the elastomer particles it is also possible to the internal of sufferer personnel, shape can be brought by medical fluid
At imponderable malpractice.
In consideration of it, technical staff improves not damaged needle, as shown in figure 3, its point is bent, it is bent
Angle generally at 15 degree or so, keep its wedge-formed incision substantially perpendicular in the resistance bacterium flexible glue surface of transfusion port, prevent from forming sword
Mouthful, such structure can be clear in patent US5290267, EP0495214, WO2013104642, CN201380003571
Ground is shown, only difference is that the bending angle of not damaged needle tip and shape are different.Such structure, although can prevent
Cutting edge is only formed, but it is same palliative, once because not damaged needle is in medical staff's puncture process with non-perpendicular landform
When state is punctured into transfusion port, cutting transfusion port resistance bacterium flexible glue can be equally led to the problem of；Second, due to not damaged needle tip shape
At bending angle, therefore in puncture process, resistance bacterium flexible glue increases the reaction force on the surface of not damaged needle, causes to puncture
When need to apply biggish thrust.It is therefore desirable to have a kind of other thinking solves above-mentioned technical problem.
Utility model content
The purpose of the utility model is to overcome the shortcomings of the prior art, provide a kind of defeated for puncturing implantable vein
The not damaged needle group at liquid port.
The purpose of this utility model is achieved through the following technical solutions:
A kind of not damaged needle group in venous transfusion port, including the pedestal being mutually coupled and puncture needle component, the pedestal packet
It includes the shell, cork, casing of coaxial arrangement, is equipped with infusion channel in the shell, in the infusion channel and described sleeve pipe
Empty portion's conducting, the cork are used to block the upper opening of the shell, and the puncture needle component includes needle stand and is fixed under it
The puncture needle of side, the end of the puncture needle punctures through the cork and after the hollow portion of described sleeve pipe from the remote of casing
End is stretched out.
Preferably, the shell includes at least a cylindrical portion, between the inner wall of the cylindrical portion and the outer wall of the cork
For tight fit.
Preferably, the upper surface of the cylindrical portion is equipped with card slot, for fixing the upper surface of the cork；The cylindrical portion
Lateral wall on extended vertically perfusion tube, be the infusion channel in the perfusion tube.
Preferably, wing portion is symmetrically arranged on the perfusion tube, two wing portions can be turned over around the central axis of the perfusion tube
Folding, and the protrusion that can be mutually clamped and groove are respectively set on respective upper surface.
Preferably, the distal end of described sleeve pipe has a wedge-shaped opening.
Preferably, the outer surface smoother transition of the wedge-shaped opening and the puncture needle.
Preferably, the distal end of described sleeve pipe has through-hole, and the through-hole is connected with the hollow portion of casing.
Preferably, the proximal end of described sleeve pipe is a horn mouth, and the horn mouth is placed in the enclosure interior and forms a liquid storage
Chamber, the liquid storage chamber are connected with the infusion channel.
Preferably, the end of the puncture needle is the tip of trigone shape.
The utility model further discloses a kind of not damaged needle group in venous transfusion port, including the casing with same rotary shaft
And puncture needle, the shell and cork of coaxial arrangement, it is equipped with infusion channel in the shell, the infusion channel and described sleeve pipe
Hollow portion conducting, the cork are used to block the upper opening of the shell, and the end of the puncture needle punctures through the cork, simultaneously
It is stretched out after the hollow portion of described sleeve pipe from the distal end of casing.
Preferably, the outer diameter of the puncture needle is suitable with the hollow portion internal diameter of described sleeve pipe.
Preferably, the distal end of described sleeve pipe has a wedge-shaped opening.
Preferably, the outer surface smoother transition of the wedge-shaped opening and the puncture needle.
Preferably, the distal end of described sleeve pipe has through-hole, and the through-hole is connected with the hollow portion of casing.
The utility model further discloses a kind of not damaged needle group in venous transfusion port, including the pedestal being mutually coupled and puncture
Needle assemblies, the pedestal include the shell of coaxial arrangement, cork, casing, and the puncture needle component includes needle stand and is fixed on it
The puncture needle of lower section, the shell is interior to be equipped with infusion channel,
When original state, the end of the puncture needle puncture through the cork and after the hollow portion of described sleeve pipe from
The distal end of casing is stretched out；
When the second state, the puncture needle is extracted out from the hollow portion of described sleeve pipe, the infusion channel and described sleeve pipe
Hollow portion conducting.
Preferably, the shell includes at least a cylindrical portion, which has upper opening, inner wall and the cork
Outer wall between be tight fit.
Preferably, the upper surface of the cylindrical portion is equipped with card slot, for fixing the upper surface of the cork；The cylindrical portion
Lateral wall on extended vertically perfusion tube, be the infusion channel in the perfusion tube.
Preferably, wing portion is symmetrically arranged on the perfusion tube, two wing portions can be turned over around the central axis of the perfusion tube
Folding, and the protrusion that can be mutually clamped and groove are respectively set on respective upper surface.
The beneficial effects of the utility model are mainly reflected in: in the premise that smoothly not damaged needle can be connected with transfusion port
Under, it effectively prevent cutting of the not damaged needle when puncturing to the resistance bacterium flexible glue of transfusion port, it is ensured that the normal use of instrument, from basic
Avoid the generation of unnecessary malpractice.
Detailed description of the invention
Technical solutions of the utility model are described further with reference to the accompanying drawing:
Fig. 1: the structural schematic diagram of the not damaged needle of the prior art；
Fig. 2: the right view of the not damaged needle of the prior art；
Fig. 3: the structural schematic diagram of second of form of the not damaged needle of the prior art；
Fig. 4: the stereoscopic schematic diagram of the utility model first embodiment；
Fig. 5: the cross-sectional view of the utility model first embodiment；
Fig. 6: the perspective view of the explosion of the utility model first embodiment；
Fig. 7: the stereoscopic schematic diagram of the utility model second embodiment；
Fig. 8: the cross-sectional view of the utility model second embodiment；
Fig. 9: the stereoscopic schematic diagram of the second direction of the utility model second embodiment；
The enlarged diagram of part A in Figure 10: Fig. 9；
The enlarged diagram of part A in Figure 11: Fig. 9, casing belongs to another form at this time；
Figure 12: the stereoscopic schematic diagram for the transfusion port that the utility model is applicable in；
Figure 13: the cross-sectional view for the transfusion port that the utility model is applicable in.
Specific embodiment
The utility model is described in detail below with reference to specific embodiment shown in the drawings.But these embodiment party
Formula is not limited to the utility model, structure that those skilled in the art are made according to these embodiments, method or
Transformation functionally is all contained in the protection scope of the utility model.
As shown in Figures 4 to 6, the utility model discloses a kind of venous transfusion port not damaged needle group, including phase interworking
The pedestal 1 and puncture needle component 2 connect.Specifically, the pedestal 1 includes the shell 11 of coaxial arrangement, cork 12, casing 13.Institute
Stating puncture needle component 2 includes needle stand 21 and fixed puncture needle 22 thereunder.
It is equipped with infusion channel 14 in the shell 11, described sleeve pipe 13 is vertically fixed on the lower section of the shell 11.It is described
The hollow portion 15 of infusion channel 14 and described sleeve pipe 13 is connected, and the cork 12 is used to block the upper opening 16 of the shell 11.
Specifically as shown in figure 5, the shell 11 includes at least a cylindrical portion 18, which has described for being arranged
The upper opening 16 of cork 12 is tight fit between the inner wall of the cylindrical portion and the outer wall of the cork 12.The cylindrical portion 18
Upper surface is equipped with card slot 19, for fixing the upper surface of the cork 12.
Perfusion tube 110 has been extended vertically on the lateral wall of the cylindrical portion 18, has been led in the perfusion tube 110 for the infusion
The opening in road 14, the infusion channel 14 can be connected with perfusion tube.The proximal end of described sleeve pipe 13 is a horn mouth 114,
The horn mouth 114, which is placed in inside the shell 11, forms a liquid storage chamber 115, the liquid storage chamber 115 and the infusion channel 14
Conducting.
In the present embodiment, described sleeve pipe 13 and puncture needle 22 have same rotary shaft.When original state, the puncture needle 22
End 23 puncture through the cork 12 and hollow portion 15 by described sleeve pipe 13 after stretched out from the distal end of casing 13 17；The
When two-state, the puncture needle 22 is extracted out from the hollow portion 15 of described sleeve pipe 13, the infusion channel 14 and described sleeve pipe 13
Hollow portion 15 be connected.In the utility model, 15 internal diameter of hollow portion of the outer diameter of the puncture needle 22 and described sleeve pipe 13 is substantially
Quite.It can also guarantee that casing 13 and puncture needle 22 are seamlessly transitted from side in this way.
Fig. 7 to Fig. 9 discloses the second embodiment of the utility model, roughly the same with first embodiment structure, most significantly
Difference be to be symmetrically arranged with wing portion 111 on the perfusion tube 110, two wing portions 11 can be in the perfusion tube 110
Mandrel fold, and the protrusion 112 that can be mutually clamped and groove 113 are respectively set on respective upper surface.The wing portion
Fixed and turnover structure should be the well-known technique of those skilled in the art, and details are not described herein.
Certainly, the present embodiment equally includes two states, and when original state, the end 23 of the puncture needle 22 punctures through institute
It is stretched out after stating cork 12 and hollow portion 15 by described sleeve pipe 13 from the distal end of casing 13 17；When the second state, the puncture
Needle 22 is extracted out from the hollow portion 15 of described sleeve pipe 13, and the hollow portion 15 of the infusion channel 14 and described sleeve pipe 13 is connected.
In conjunction with shown in Fig. 9 and Figure 10, the distal end 17 of described sleeve pipe 13 has a wedge-shaped opening 116.The wedge-shaped opening 116 and institute
State the outer surface smoother transition of puncture needle 22.This be after casing 13 is inserted into transfusion port, can be successfully from described for medical fluid
It is flowed out in casing 13.Because if without wedge-shaped opening 116, once transfusion port is tightly attached to after puncture in the end of casing 13
Inner wall, then medical fluid can be blocked and be unable to complete normal infusion movement.In view of rod principle, as shown in figure 11, described sleeve pipe 13
Distally 17 it may also begin to through-hole 117, the hollow portion 15 of the through-hole 117 and casing 13 is connected.The through-hole 17 can be one
Or it is multiple, can symmetrically or non-symmetrically, equally playing ensures to complete normal infusion movement.Certainly, other structures, for example, it is multiple
Wedge-shaped opening, or change end, etc. the technical solution of casing 13, it is all the protection scope of the utility model.
As shown in Figure 10 and Figure 11, the end 23 of the puncture needle 22 is the tip of trigone shape.In this way when puncture needle 22
The resistance being subject to when being punctured can be smaller.Certainly, other shapes are also possible.
The utility model further discloses a kind of application method of not damaged needle group in venous transfusion port, comprising:
Step 1, provides a pedestal 1, and the pedestal 1 includes the shell 11 of coaxial arrangement, cork 12, casing 13, cork 12
Positioned at the top of the shell 11, casing 13 is vertical at the lower section of the shell 11, is equipped with infusion channel in the shell 11
14, the hollow portion 15 of the infusion channel 14 and described sleeve pipe 13 is connected, and the cork 12 is for blocking the shell 11
Opening 16；
Step 2, provides a puncture needle component 2, and the puncture needle component 2 includes needle stand 21 and fixed wearing thereunder
Pricker 22, the length of the puncture needle 22 are greater than the length of described sleeve pipe 13；
Step 3 provides a transfusion port 3, and as shown in Figure 12,13, the transfusion port 3 includes outer with medical fluid runner 33
Shell 31 and the resistance bacterium flexible glue 32 for being fixed at the cover top portion, have medicine cavity 34 inside the shell 31, the medicine cavity 34 with
Medical fluid runner 33 is connected；
Step 4, the end 23 of the puncture needle 22 puncture through the cork 12 and the hollow portion Jing Guo described sleeve pipe 13
It is stretched out after 15 from the distal end of casing 13 17, the puncture needle 22 and casing 13 is pierced through to the resistance bacterium flexible glue of the transfusion port 3 simultaneously
Make the end 23 of the puncture needle 22 and the distal end 17 of casing 13 after 32 while entering and being maintained in the medicine cavity 34；
Step 5 withdraws from the puncture needle 22 backward, and the puncture needle 22 is extracted out from described sleeve pipe 13, makes described defeated
Liquid channel 14, the hollow portion 15 of casing 13, the medicine cavity 34 of the transfusion port 3 and medical fluid runner 33 are both turned on.
The utility model changes the consistent thinking of those skilled in the art, proposes the knot that casing and puncture needle match
Structure realizes double-deck effect of effectively puncture and anti-loss.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
Claims (18)
1. the not damaged needle group in venous transfusion port, it is characterised in that: including the pedestal (1) being mutually coupled and puncture needle component (2),
The pedestal (1) includes the shell (11) of coaxial arrangement, cork (12), casing (13), and it is logical to be equipped with infusion in the shell (11)
Road (14), hollow portion (15) conducting of the infusion channel (14) and described sleeve pipe (13), the cork (12) is for blocking institute
The upper opening (16) of shell (11) is stated, the puncture needle component (2) includes needle stand (21) and fixed puncture needle thereunder
(22), the end (23) of the puncture needle (22) punctures through the cork (12) and the hollow portion by described sleeve pipe (13)
(15) it is stretched out after from the distal end (17) of casing (13).
2. the not damaged needle group in venous transfusion port according to claim 1, it is characterised in that: the shell (11) is at least wrapped
A cylindrical portion (18) is included, is tight fit between the inner wall of the cylindrical portion and the outer wall of the cork (12).
3. the not damaged needle group in venous transfusion port according to claim 2, it is characterised in that: the cylindrical portion (18) it is upper
End face is equipped with card slot (19), for fixing the upper surface of the cork (12)；Vertically prolong on the lateral wall of the cylindrical portion (18)
Stretching has perfusion tube (110), is in the perfusion tube (110) infusion channel (14).
4. the not damaged needle group in venous transfusion port according to claim 3, it is characterised in that: on the perfusion tube (110)
It is symmetrically arranged with wing portion (111), two wing portions can be turned down around the central axis of the perfusion tube (110), and in respective upper table
The protrusion (112) that can be mutually clamped and groove (113) are respectively set on face.
5. the not damaged needle group in venous transfusion port according to claim 1, it is characterised in that: the distal end of described sleeve pipe (13)
(17) there are a wedge-shaped opening (116).
6. the not damaged needle group in venous transfusion port according to claim 5, it is characterised in that: the wedge-shaped opening (116) with
The outer surface smoother transition of the puncture needle (22).
7. the not damaged needle group in venous transfusion port according to claim 1, it is characterised in that: the distal end of described sleeve pipe (13)
(17) there are through-hole (117), the hollow portion (15) of the through-hole (117) and casing (13) is connected.
8. according to the not damaged needle group in venous transfusion port described in claim 5 or 6 or 7, it is characterised in that: described sleeve pipe (13)
Proximal end be a horn mouth (114), the horn mouth (114) is placed in inside the shell (11) and forms a liquid storage chamber (115), institute
Liquid storage chamber (115) and the infusion channel (14) are stated to be connected.
9. the not damaged needle group in venous transfusion port according to claim 1, it is characterised in that: the end of the puncture needle (22)
Portion (23) is the tip of trigone shape.
10. the not damaged needle group in venous transfusion port, it is characterised in that: including casing (13) and puncture needle with same rotary shaft
(22), the shell (11) and cork (12) of coaxial arrangement, the shell (11) is interior to be equipped with infusion channel (14), the infusion channel
(14) it is connected with the hollow portion (15) of described sleeve pipe (13), the cork (12) is used to block the upper opening of the shell (11)
(16), the end (23) of the puncture needle (22) punctures through the cork (12) and the hollow portion by described sleeve pipe (13)
(15) it is stretched out after from the distal end (17) of casing (13).
11. the not damaged needle group in venous transfusion port according to claim 10, it is characterised in that: the puncture needle (22)
Outer diameter is suitable with hollow portion (15) internal diameter of described sleeve pipe (13).
12. the not damaged needle group in venous transfusion port according to claim 10, it is characterised in that: described sleeve pipe (13) it is remote
Hold (17) that there are a wedge-shaped opening (116).
13. the not damaged needle group in venous transfusion port according to claim 12, it is characterised in that: the wedge-shaped opening (116)
With the outer surface smoother transition of the puncture needle (22).
14. the not damaged needle group in venous transfusion port according to claim 10, it is characterised in that: described sleeve pipe (13) it is remote
Hold (17) that there are through-hole (117), the hollow portion (15) of the through-hole (117) and casing (13) is connected.
15. the not damaged needle group in venous transfusion port, it is characterised in that: including the pedestal (1) being mutually coupled and puncture needle component
(2), the pedestal (1) includes the shell (11) of coaxial arrangement, cork (12), casing (13), and the puncture needle component (2) includes
Needle stand (21) and fixed puncture needle (22) thereunder, the shell (11) is interior to be equipped with infusion channel (14),
When original state, the end (23) of the puncture needle (22) punctures through the cork (12) and passes through described sleeve pipe (13)
Hollow portion (15) after from the distal end (17) of casing (13) stretch out；
When the second state, the puncture needle (22) extraction, infusion channel from the hollow portion (15) of described sleeve pipe (13)
(14) it is connected with the hollow portion (15) of described sleeve pipe (13).
16. the not damaged needle group in venous transfusion port according to claim 15, it is characterised in that: the shell (11) is at least
Including a cylindrical portion (18), it is tight between inner wall and the outer wall of the cork (12) which, which has upper opening (16),
Cooperation.
17. the not damaged needle group in venous transfusion port according to claim 16, it is characterised in that: the cylindrical portion (18)
Upper surface is equipped with card slot (19), for fixing the upper surface of the cork (12)；It is vertical on the lateral wall of the cylindrical portion (18)
It is extended with perfusion tube (110), is in the perfusion tube (110) infusion channel (14).
18. the not damaged needle group in venous transfusion port according to claim 17, it is characterised in that: the perfusion tube (110)
On be symmetrically arranged with wing portion (111), two wing portions can be turned down around the central axis of the perfusion tube (110), and on respective
The protrusion (112) that can be mutually clamped and groove (113) are respectively set on surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513387.4U CN208710673U (en) | 2018-04-12 | 2018-04-12 | The not damaged needle group in venous transfusion port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513387.4U CN208710673U (en) | 2018-04-12 | 2018-04-12 | The not damaged needle group in venous transfusion port |
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| Publication Number | Publication Date |
|---|---|
| CN208710673U true CN208710673U (en) | 2019-04-09 |
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ID=65969652
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820513387.4U Active CN208710673U (en) | 2018-04-12 | 2018-04-12 | The not damaged needle group in venous transfusion port |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870157A (en) * | 2022-05-25 | 2022-08-09 | 南方医科大学南方医院 | Infusion device and method of use |
-
2018
- 2018-04-12 CN CN201820513387.4U patent/CN208710673U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870157A (en) * | 2022-05-25 | 2022-08-09 | 南方医科大学南方医院 | Infusion device and method of use |
| CN114870157B (en) * | 2022-05-25 | 2023-05-26 | 南方医科大学南方医院 | Infusion device and use method |
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