CN214805209U - Deep vein puncture device - Google Patents
Deep vein puncture device Download PDFInfo
- Publication number
- CN214805209U CN214805209U CN202120322846.2U CN202120322846U CN214805209U CN 214805209 U CN214805209 U CN 214805209U CN 202120322846 U CN202120322846 U CN 202120322846U CN 214805209 U CN214805209 U CN 214805209U
- Authority
- CN
- China
- Prior art keywords
- puncture needle
- dilator
- needle
- puncture
- deep vein
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- 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 17
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000004204 blood vessel Anatomy 0.000 abstract description 16
- 230000010339 dilation Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 23
- 239000010959 steel Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A deep vein puncture device comprises a puncture needle, an expander and a driving mechanism, wherein one end of the puncture needle is provided with a connecting part which is connected with an injector, and the other end of the puncture needle can be punctured into a human body; the dilator is sleeved on the puncture needle; the driving mechanism is arranged on the connecting part and is in driving connection with the dilator so as to drive the dilator to slide along the length direction of the puncture needle. After the head of the puncture needle is normally punctured into a blood vessel, the dilator can be driven to push towards the needle head part of the puncture needle through the driving mechanism without going deep, so that the dilator extends forwards and is inserted into the skin, and the skin dilation operation is realized.
Description
Technical Field
The utility model relates to a medical equipment field specifically is a dark vein puncture device.
Background
When the disposable venipuncture bag which is popularized and used in clinic is used for deep venipuncture and catheterization, a steel needle connected with a special injector firstly punctures the skin of a human body, and when the steel needle punctures a blood vessel and draws back the injector to see dark red blood, the steel needle is judged to be correctly punctured into the vein blood vessel; then fixing the steel needle, introducing a guide steel wire into the hole reserved at one end of the special injector and pushing the guide steel wire into the deep venous blood vessel along the inner hole of the steel needle, pulling out the steel needle after the guide steel wire is sent to a certain distance, and leaving the guide steel wire in the blood vessel to play a role in guiding the insertion of the deep venous catheter into the blood vessel; then the special injector and the steel needle are drawn out, the skin dilator is sleeved along the guide steel wire, the dilator is drawn out after the skin is widened, the venous catheter can be placed into the blood vessel along the guide steel wire, and finally the guide steel wire is drawn out.
The process has various steps and needs to consume more time, so that a puncture device integrating a skin dilator and a steel needle into a whole is also provided at present, but in the puncture device, the skin dilator and the steel needle are generally fixed with each other, a needle head part of the steel needle is reserved at the head of the dilator, and after the needle head of the steel needle is punctured into a deep vein, the steel needle needs to be continuously deepened until the head of the dilator is inserted into the vein to realize the effect. Therefore, in the actual operation of the puncture device, when the steel needle continues to penetrate and the head of the dilator enters the blood vessel, the needle head of the steel needle is easy to puncture the blood vessel wall on the other side, which is not favorable for grasping the needle head position of the steel needle.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a pair of deep vein puncture device can effectively solve above-mentioned problem.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a deep vein puncturing device, comprising:
one end of the puncture needle is provided with a connecting part which is connected with the injector, and the other end of the puncture needle can be punctured into the human body;
the dilator is sleeved on the puncture needle;
and the driving mechanism is arranged on the connecting part and is in driving connection with the dilator so as to drive the dilator to slide along the length direction of the puncture needle.
Preferably, the drive mechanism comprises:
the first end of the swing rod is hinged to the connecting part, and the second end of the swing rod can swing;
one end of the connecting rod is hinged with the middle part of the swinging rod, and the other end of the connecting rod is hinged with the expander.
Preferably, the two oscillating rods and the two connecting rods are symmetrically arranged on two sides of the puncture needle respectively.
Preferably, the maximum angle between the oscillating lever and the puncture needle is 70 °.
Preferably, the second end of the swing rod is provided with an accommodating groove penetrating through the middle of the swing rod, one end of the connecting rod is hinged in the accommodating groove, and the connecting rod can swing into the accommodating groove.
Preferably, the dilator head is slidable furthest to be flush with the puncture needle head.
Advantageous effects
The utility model has the advantages that: a deep vein puncture device comprises a puncture needle, an expander and a driving mechanism, wherein one end of the puncture needle is provided with a connecting part which is connected with an injector, and the other end of the puncture needle can be punctured into a human body; the dilator is sleeved on the puncture needle; the driving mechanism is arranged on the connecting part and is in driving connection with the dilator so as to drive the dilator to slide along the length direction of the puncture needle. After the head of the puncture needle is normally punctured into a blood vessel, the dilator can be driven to push towards the needle head part of the puncture needle through the driving mechanism without going deep, so that the dilator extends forwards and is inserted into the skin, and the skin dilation operation is realized.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
fig. 1 is a schematic view of an overall structure of an embodiment of the present invention;
fig. 2 is a schematic overall structure diagram of the embodiment of the present invention;
in the figure, a puncture needle 1, an expander 2, a driving mechanism 3, a connecting part 10, a swinging rod 31, a connecting rod 32 and a 310 accommodating groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a deep vein puncture device comprising:
the puncture needle comprises a puncture needle 1, wherein one end of the puncture needle 1 is provided with a connecting part 10, the connecting part 10 is connected with an injector, and the other end of the puncture needle 1 can be punctured into a human body;
the dilator 2 is sleeved on the puncture needle 1;
and the driving mechanism 3 is arranged on the connecting part 10, and is in driving connection with the dilator 2 so as to drive the dilator 2 to slide along the length direction of the puncture needle 1.
When the puncture needle is used, the head of the puncture needle 1 is normally inserted into a blood vessel until the dark red blood is seen by the back-pumping injector, so that the needle head can be confirmed to enter the blood vessel, the puncture needle 1 does not need to be continuously inserted, and the needle head can be prevented from puncturing the blood vessel wall on the opposite side. After the guide steel wire is led into the puncture needle 1, the medical staff drives the dilator 2 to advance to the needle head part of the puncture needle 1 through the driving mechanism 3, so that the dilator 2 extends forwards and is inserted into the skin, and the skin dilation operation is realized. Wherein, because the needle head of the puncture needle 1 is inserted into the blood vessel and does not need to be pushed forward again, the needle head can be effectively prevented from puncturing the blood vessel wall.
Furthermore, in order to accurately control the advancing position of the dilator 2 and reduce the problem that the dilator 2 cannot completely stretch into the skin due to visual deviation, in the embodiment of the present invention, the driving mechanism 3 includes a swing rod 31 and a connecting rod 32, a first end of the swing rod 31 is hinged on the connecting portion 10, and a second end can swing; one end of the connecting rod 32 is hinged with the middle part of the swinging rod 31, and the other end is hinged with the expander 2.
During the operation, medical personnel singlehanded syringe, another hand drives swinging arms 31 swing, can make expander 2 antedisplacement through connecting rod 32 transmission effort to on the expander 2, simultaneously, the accessible is observed swinging arms 31's swing angle, confirms the propulsive degree of expander 2 to ensure that expander 2 goes on to end to the expanding effect of skin.
Wherein, two oscillating rods 31 and two connecting rods 32 are arranged and are respectively and symmetrically arranged at two sides of the puncture needle 1. This arrangement allows the expander 2 to be more evenly stressed and the force application process by the medical personnel to be easier.
Furthermore, the maximum included angle between the swing rod 31 and the puncture needle 1 is 70 degrees, and the included angle between the swing rod 31 and the puncture needle 1 is an acute angle, so that when the fingers of the medical staff press the end part of the swing rod 31, the resultant force direction of the swing rod 31 is the direction of the puncture needle 1, and the dilator 2 is convenient to push.
Further, the second end of the swing rod 31 is provided with a receiving groove 310 penetrating to the middle of the swing rod 31, one end of the connecting rod 32 is hinged in the receiving groove 310, and the connecting rod 32 can swing into the receiving groove 310. The thickness of the swing lever 31 and the link 32 is increased to increase the strength thereof, and the swing angle of the swing lever 31 is ensured not to be disturbed.
Furthermore, the farthest head of the dilator 2 can slide to the position parallel and level with the head of the puncture needle 1, so that the dilator 2 is prevented from penetrating too deeply to puncture the blood vessel wall on the opposite side of the blood vessel, and meanwhile, when the swing rod 31 swings to the maximum stroke position, the head of the dilator 2 is parallel and level with the head of the puncture needle 1, and the medical staff can conveniently control the stroke of the dilator 2.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A deep vein puncturing device, comprising:
the puncture needle comprises a puncture needle (1), wherein one end of the puncture needle (1) is provided with a connecting part (10), the connecting part (10) is connected with an injector, and the other end of the puncture needle (1) can be punctured into a human body;
the dilator (2), the said dilator (2) is set on the puncture needle (1);
the driving mechanism (3) is installed on the connecting portion (10) and is in driving connection with the expander (2) so as to drive the expander (2) to slide along the length direction of the puncture needle (1).
2. A deep vein puncturing device according to claim 1, wherein said driving mechanism (3) comprises:
the first end of the swinging rod (31) is hinged to the connecting part (10), and the second end of the swinging rod (31) can swing;
one end of the connecting rod (32) is hinged with the middle part of the swinging rod (31), and the other end of the connecting rod (32) is hinged with the expander (2).
3. A deep vein puncture device according to claim 2, characterized in that, two oscillating rods (31) and two connecting rods (32) are provided and are symmetrically arranged on two sides of the puncture needle (1).
4. A deep vein puncture device according to claim 2, characterized in that the maximum angle between the oscillating lever (31) and the puncture needle (1) is 70 °.
5. A deep vein puncture device according to claim 2, wherein the second end of the swing lever (31) is provided with a receiving groove (310) penetrating to the middle of the swing lever (31), one end of the connecting rod (32) is hinged in the receiving groove (310), and the connecting rod (32) can swing into the receiving groove (310).
6. A deep vein puncture device according to claim 1, characterized in that the head of the dilator (2) is slidable furthest to be flush with the head of the puncture needle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120322846.2U CN214805209U (en) | 2021-02-04 | 2021-02-04 | Deep vein puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120322846.2U CN214805209U (en) | 2021-02-04 | 2021-02-04 | Deep vein puncture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214805209U true CN214805209U (en) | 2021-11-23 |
Family
ID=80005447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120322846.2U Expired - Fee Related CN214805209U (en) | 2021-02-04 | 2021-02-04 | Deep vein puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214805209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114432574A (en) * | 2022-01-18 | 2022-05-06 | 中国人民解放军陆军军医大学第二附属医院 | Guide wire, catheter and air inlet switching module for tiny blood vessel puncture |
-
2021
- 2021-02-04 CN CN202120322846.2U patent/CN214805209U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114432574A (en) * | 2022-01-18 | 2022-05-06 | 中国人民解放军陆军军医大学第二附属医院 | Guide wire, catheter and air inlet switching module for tiny blood vessel puncture |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |