CN208447843U - A kind of straight type vein detaining needle for fluids infusion device of experimental animal - Google Patents
A kind of straight type vein detaining needle for fluids infusion device of experimental animal Download PDFInfo
- Publication number
- CN208447843U CN208447843U CN201721355800.0U CN201721355800U CN208447843U CN 208447843 U CN208447843 U CN 208447843U CN 201721355800 U CN201721355800 U CN 201721355800U CN 208447843 U CN208447843 U CN 208447843U
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- China
- Prior art keywords
- infusion device
- experimental animal
- vein
- straight type
- detaining needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000003462 vein Anatomy 0.000 title claims abstract description 41
- 238000001802 infusion Methods 0.000 title claims abstract description 28
- 239000012530 fluid Substances 0.000 title claims abstract description 24
- 238000010171 animal model Methods 0.000 title claims abstract description 22
- 210000004204 blood vessel Anatomy 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 210000001015 abdomen Anatomy 0.000 claims description 2
- 210000003191 femoral vein Anatomy 0.000 claims description 2
- 210000003141 lower extremity Anatomy 0.000 claims description 2
- 241001465754 Metazoa Species 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 3
- 201000010099 disease Diseases 0.000 abstract description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 2
- 230000002980 postoperative effect Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 238000002627 tracheal intubation Methods 0.000 description 2
- 210000005239 tubule Anatomy 0.000 description 2
- 206010002515 Animal bite Diseases 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000013002 intravenous (IV) drug Substances 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000010253 intravenous injection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of straight type vein detaining needle for fluids infusion device of experimental animal, which is tubular cavity structure closed at one end, comprising: conduit, connecting tube and closure.The apparatus structure of the utility model is simple；Only need to once perform the operation can be completed merging, easy to operate, and success rate is high；Rat only needs once to perform the operation, and damages small；Whole device is completely in subcutaneously, and postoperative the care of animal is simple, few intercurrent disease.
Description
Technical field
The utility model relates to Medical Devices, more particularly, to a kind of straight type vein detaining needle for fluids infusion device of experimental animal,
The infusion device is suitable for any experimental animal, including but not limited to rabbit, dog, rat etc..
Background technique
Experimental animal vena jugularis externa tube placing operation is widely used in zoopery, for intravenous (IV) drug or takes blood.Scripture
Retrieval discovery is offered, although guide-tube structure, there are many variation, essential characteristic and surgical procedure are similar: conduit is both ends open
Tubule or tubule deformation.One end of conduit carries out vena jugularis externa intubation, by one section of insertion vena jugularis externa of indwelling tube, and ligatures
It is fixed；The other end of conduit is guided from subcutaneously passing through, and is pierced by animal nape is transdermal, is fixed on musculature and skin
On.The nozzle of conduit one end in vitro is closed using closure.When injecting drug or blood drawing, closure is opened, is terminated
Closure is put back to after operation again.
By taking rat as an example, current rat vena jugularis externa tube placing operation needs two operations to complete.
Operation for the first time is rat vena jugularis externa intubation: by rat anesthesia, lying on the back and is placed on operating table, in neck median line
Side cuts skin, exposure vena jugularis externa.Vena jugularis externa distal end is ligatured, and burns and closes side shoot vein.A kerf is done on vein,
The conduit of preliminary filling heparin is inserted into from cutting section centripetal direction, insertion depth about 2.5cm.Vena jugularis externa ligatures fixed catheter, uses
Syringe is pushed into salt water from the other end, checks that pipeline is unobstructed.
Second of operation is that rat is positioned to prone position, one osculum of incision of skin after neck, by conduit free-end through drawing
It leads across being subcutaneously pierced by from this notch, muscle of back tissue and skin are fixed in suture.Intercept the conduit of suitable length, sealed tube
Mouthful.
By observing the above operation, it can be found that the prior art has the disadvantage that
1, it needs to carry out two operations in animals, consuming time is long, big to animal injury；
2, used conduit is PEG tube or epidural catheter, relatively hard, and flexibility is insufficient, in the blood vessels, subcutaneous row
It need to be repeatedly bent when walking, tension is very big, is easy to pierce through blood vessel, or deviate from from blood vessel, such case is external at back
When section is by larger external force or carry out being easier to occur when injection operation；
3, the conduit for being exposed to the nape of the neck is a foreign matter to animal, easily causes the scratching of animal, is easy displacement, falls off,
Animal wound is also easy to happen infection；
4, animal bites sting conduit mutually in order to prevent, needs individually to raise animal, increases the care of animal cost；
5, operation completes that patient is needed to have quite skilled operation skill, and it is higher to complete difficulty.
Therefore, it is necessary to a kind of straight type vein detaining needle for fluids infusion devices of improved experimental animal.
Utility model content
The purpose of this utility model is to provide a kind of straight type vein detaining needle for fluids infusion devices of experimental animal.
A kind of straight type vein detaining needle for fluids infusion device of experimental animal, the infusion device are tubular cavity knots closed at one end
Structure, comprising:
Conduit, the conduit are straight tubular structures, and having can be plugged into the first part in vein and can be with connecting tube
Connected second part；
Connecting tube, the connecting tube are the different tubular structures of both ends nozzle diameter, the nozzle diameter of the connecting tube compared with
Small one end is connected with the second part of the conduit；And
Biggish one end of nozzle diameter of the connecting tube is arranged in close the nozzle in closure, the closure, and
The closure is transparent.
The outer diameter of conduit, which meets it, can be plugged into vein.Further, the conduit length meet be inserted into it is quiet
It is still partially in outside blood vessel after arteries and veins 2-2.5cm.Preferably, the length of the conduit is greater than 3cm.
Further, the conduit is equipped with the scale for indicating length.Preferably, the conduit is in its first part
The scale for indicating length is equipped with from nozzle.It is highly preferred that the conduit its first part from nozzle 1cm,
There is scale mark at 2cm, 3cm.
Further, the nozzle diameter of the connecting tube is to be gradually increased to be relatively large in diameter one from the lesser one end of diameter
End.
The closure is that have closing function and can penetrate the component of function, for example, latex cap, silicon rubber cup or rubber
The analogs such as plug.
The vein includes but is not limited to vena jugularis externa, abdomen vein, femoral vein, hind leg venae subcutaneae.
The vein is preferably vena jugularis externa.
The utility model has the advantage that
The experimental animal of the utility model solves the multiple shortcomings of the prior art with straight type vein detaining needle for fluids infusion device, can
To realize the long-term intravenous infusion treatment of animal；Whole device is only made of 3 parts, and structure is simple；Only need to once it perform the operation
Merging is completed, easy to operate, success rate is high；Animal only needs once to perform the operation, and damages small；Whole device is completely in subcutaneously, art
The care of animal is simple afterwards, few intercurrent disease.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the straight type vein detaining needle for fluids infusion device of experimental animal of the utility model.
Specific embodiment
Embodiment
As shown in Figure 1, being the structural schematic diagram of the straight type vein detaining needle for fluids infusion device of experimental animal of the utility model.It should
Device is tubular structure object closed at one end, including conduit 1, connecting tube 2 and silicon rubber cup 3.
Conduit 1 is straight tubular structure, and having can be plugged into the first part 11 in vena jugularis externa and can be with connecting tube phase
Second part 12 even.The outer diameter of conduit 1, which meets it, can be plugged into vena jugularis externa, and overall length is greater than 3cm.In first part
There is scale mark 4 on 11 at 1cm, 2cm, 3cm from nozzle head end.
Connecting tube 2 is the tubular structure with the first nozzle 21 and the second nozzle 22, from first the 21 to the second nozzle of nozzle
22 nozzle diameter is gradually increased.First nozzle 21 is connected with 12 part of second part of conduit 1.The internal diameter of connecting tube 2 is greater than
The outer diameter of conduit 1, to reduce venipuncture difficulty.
Silicon rubber cup 3 is covered at the second nozzle 22 of connecting tube 2, is worn for closing vein detaining catheter and can be used as vein
Thorn, the access for realizing intravenous injection.Silicon rubber cup 3 can be replaced with analogs such as latex cap, rubber stoppers.
Now the specific operation process of the vein detaining needle for fluids infusion device is described as follows with rat citing:
1, vein detaining needle for fluids infusion device needed for preparing, injects heparin-saline, by vein detaining needle for fluids infusion from silicon rubber cup 3
Device is full of, spare.
2, it will be in dorsal position after rat anesthesia, skin is cut on the right side of cervical midline, and separate fascia, and expose vena jugularis externa,
The ligation of vena jugularis externa distal end, and burn the side shoot vein closed to vena jugularis externa blood supply.Vena jugularis externa proximal part is ligatured with silk thread, and
In advance loosely make a call to two knots.Between ligation at two, a kerf is cut on vein with microscissors, size is can be put into
Subject to conduit 1.Conduit 1 is accurately extend into vena jugularis externa, fixes blood vessel and conduit 1 with reserved knot.It is quiet to open ligation
The knot of arteries and veins, conduit 1 is slightly deeper into blood vessel again.
3, changing rat posture makes it in lateral position, and surgical clamp is stretched to neck back side from cervical incision, separates rat neck
Portion's skin and muscle, after obtaining sufficient space, connecting tube 2 is sent into subcutaneous space from cut out portion by bending conduit 1, and adjustment should
Conduit 1 is inserted into vein proximal part, insertion depth 2-2.5cm, by connecting tube 2 by the position of vein detaining needle for fluids infusion device again
It is adjusted to after rat ears, is in upright state.Suture skin of neck.From rat the nape of the neck penetrate skin, penetrate silicon rubber cup 3 into
Row injection.If operation is normal, it should inject much smoother.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, not to limit the protection scope of the utility model, those skilled in the art can be designed that a lot of other for they
Modification and implementation, these modifications and implementations will fall within scope and spirit disclosed in the present application.More
Say to body, disclose in the application, drawings and claims in the range of, can building block to theme combination layout and/or
Layout carries out a variety of variations and modifications.In addition to variations and improvements to the component parts and or layout, for this field skill
For art personnel, other purposes also be will be apparent.
Claims (10)
1. a kind of straight type vein detaining needle for fluids infusion device of experimental animal, which is characterized in that the infusion device is pipe closed at one end
Shape cavity structure, comprising:
Conduit, the conduit are straight tubular structures, have the first part that can be plugged into vein and can be connected with connecting tube
Second part；
Connecting tube, the connecting tube are the different tubular structures of both ends nozzle diameter, and the nozzle diameter of the connecting tube is lesser
One end is connected with the second part of the conduit；And
Biggish one end of nozzle diameter of the connecting tube is arranged in close the nozzle in closure, the closure, and described
Closure is transparent.
2. a kind of straight type vein detaining needle for fluids infusion device of experimental animal according to claim 1, which is characterized in that described to lead
The length satisfaction of pipe is still partially in outside blood vessel after being inserted into vein 2-2.5cm.
3. a kind of straight type vein detaining needle for fluids infusion device of experimental animal according to claim 2, which is characterized in that described to lead
The length of pipe is greater than 3cm.
4. a kind of straight type vein detaining needle for fluids infusion device of experimental animal according to claim 1, which is characterized in that described to lead
Pipe is equipped with the scale for indicating length.
5. a kind of straight type vein detaining needle for fluids infusion device of experimental animal according to claim 4, which is characterized in that described to lead
Pipe is equipped with the scale for indicating length in its first part from nozzle.
6. a kind of straight type vein detaining needle for fluids infusion device of experimental animal according to claim 5, which is characterized in that described to lead
Pipe has scale mark in its first part from nozzle at 1cm, 2cm, 3cm.
7. a kind of straight type vein detaining needle for fluids infusion device of experimental animal according to claim 1, which is characterized in that the company
The nozzle diameter of adapter tube is the one end for being gradually increased to be relatively large in diameter from the lesser one end of diameter.
8. a kind of straight type vein detaining needle for fluids infusion device of experimental animal according to claim 1, which is characterized in that the envelope
Closing object is latex cap, silicon rubber cup or rubber stopper.
9. special according to claim 1 to a kind of straight type vein detaining needle for fluids infusion device of experimental animal described in any one of 8
Sign is that the vein is vena jugularis externa, abdomen vein, femoral vein, hind leg venae subcutaneae.
10. according to claim 1 to a kind of straight type vein detaining needle for fluids infusion device of experimental animal described in any one of 8,
It is characterized in that, the vein is vena jugularis externa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355800.0U CN208447843U (en) | 2017-10-19 | 2017-10-19 | A kind of straight type vein detaining needle for fluids infusion device of experimental animal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355800.0U CN208447843U (en) | 2017-10-19 | 2017-10-19 | A kind of straight type vein detaining needle for fluids infusion device of experimental animal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208447843U true CN208447843U (en) | 2019-02-01 |
Family
ID=65139873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721355800.0U Expired - Fee Related CN208447843U (en) | 2017-10-19 | 2017-10-19 | A kind of straight type vein detaining needle for fluids infusion device of experimental animal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208447843U (en) |
-
2017
- 2017-10-19 CN CN201721355800.0U patent/CN208447843U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190201 |