CN201683989U - Disposable deep venipuncture trocar - Google Patents
Disposable deep venipuncture trocar Download PDFInfo
- Publication number
- CN201683989U CN201683989U CN2010202228448U CN201020222844U CN201683989U CN 201683989 U CN201683989 U CN 201683989U CN 2010202228448 U CN2010202228448 U CN 2010202228448U CN 201020222844 U CN201020222844 U CN 201020222844U CN 201683989 U CN201683989 U CN 201683989U
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- Prior art keywords
- puncture needle
- epitheca
- puncture
- trocar
- needle
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Abstract
The utility model relates to a disposable deep venipuncture trocar. Through the technical scheme provided by the utility model, the disposable deep venipuncture trocar comprises a puncture needle and a sheath, wherein the front end of the puncture needle is provided with an inclined cutting plane; the back end of the puncture needle is provided with a needle base; the sheath is a hollow tube; the inner diameter of the sheath is matched with the outer diameter of the puncture needle; the sheath is sleeved on the puncture needle and is capable of moving along the puncture needle; the front end of the puncture needle extends out of the sheath; and the tail end of the sheath is provided with a sheath base which is connected to the needle base on the back end of the puncture needle. The utility model has simple and smart structure and high puncturing ratio. Proved by clinical trials, the once puncturing ratio reaches to 93.8%. The operation is simple and rapid. The harm to a human body is tiny and complications are less. The manufacturing cost of the utility model is low and the utility model is convenient to apply widely .
Description
Technical field
This utility model belongs to the medical apparatus and instruments field, relates to a kind of sting device that dark Vein Tube puncture is used that is used for, and specifically is a kind of disposable deep vein puncture trocar.
Background technology
At present, the technology that deep vein puncture in the hospital clinical adopts usually is to try successfully general direction, position and the degree of depth of the back dark vein in location on small size puncture needle earlier, and then the lancet puncture of changing large size, puncture and successfully replant into seal wire, insert dark venous duct again along seal wire at last.Above-mentioned piercing process comprises two steps, can make troubles to clinical manipulation, the main problem that exists is as follows: 1, location, small size lancet puncture success back is unintelligible, also needs when changing the large size lancet puncture again to try on repeatedly, cause secondary damage, increase patient's pain on foot.2, large size puncture needle tissue injury is big, causes easily and infects.3, operating technology more complicated, the operating time is long, to having relatively high expectations of operator.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple and ingenious structure, puncture success rate height, quick, little to injury of human disposable deep vein puncture trocar simple to operate are provided.
According to the technical scheme that this utility model provides, described disposable deep vein puncture trocar comprises puncture needle and epitheca, and the front end of puncture needle is made as oblique section, and the rear portion of puncture needle is provided with needle stand; Described epitheca is a hollow tube body, and the internal diameter of epitheca is suitable mutually with the external diameter of puncture needle, and outer sheath also can move along puncture needle on puncture needle, and epitheca is stretched out in the front portion of puncture needle, and the afterbody of epitheca is provided with the sheath seat, and this sheath seat is connected on the needle stand at puncture needle rear portion.
As further improvement of the utility model, the sheath seat of described epitheca rear end is provided with the holding part of being convenient to loading or unloading operation.
As further improvement of the utility model, described holding part comprises front end panel, rear bearing sheet and holds plate, and front end panel, rear bearing sheet are set directly on the sheath seat, and front end panel, rear bearing sheet are parallel to each other; The described plate that holds is two, two both sides that are arranged on epitheca rear end sheath seat with holding the plate centrosymmetry, and two two ends that hold plate are connected on front end panel, the rear bearing sheet.
As further improvement of the utility model, described two hold the arc that plate is middle indent, and arc can be suitable mutually with the finger shape, is convenient to hold loading or unloading operation.
As further improvement of the utility model, the described plate lateral surface that holds is provided with anti-skidding convex tendon, and anti-skidding convex tendon not only can strengthen intensity but also can play anti-skidding effect, guarantees to hold stable.
As further improvement of the utility model, described puncture needle inner hollow, the puncture needle of hollow is after puncturing successfully, and pumpback has blood back, is convenient to judge the puncture effect.
As further improvement of the utility model, the front end of described epitheca is made as oblique section, and oblique section makes the push operation of epitheca easier, reduces the wound that tissue is produced.
As further improvement of the utility model, described puncture needle is provided with graduation mark, and when the epitheca tail end was positioned at the zero graduation position of puncture needle, epitheca is most advanced and sophisticated to be overlapped with puncture needle is most advanced and sophisticated.
This utility model compared with prior art, advantage is: simple and ingenious structure, puncture success rate height, through clinical experiment, the disposable puncture success rate reaches 93.8%; And simple to operate quick, little to injury of human, situation about developing complications is extremely low; And low cost of manufacture of the present utility model, be convenient to promote the use of on a large scale.
Description of drawings
Fig. 1 is the structural representation of this utility model preferred embodiment.
Fig. 2 is the A portion amplification view among Fig. 1.
Fig. 3 is the application sketch map of this utility model preferred embodiment.
Description of reference numerals: 1-puncture needle, 2-epitheca, 3-sheath seat, 4-holding part, 5-needle stand, 6-rear bearing sheet, 7-hold plate, the anti-skidding convex tendon of 8-, 9-front end panel, 10-seal wire.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: the disposable deep vein puncture trocar among the embodiment mainly is made up of puncture needle 1 and epitheca 2, and the front end of puncture needle 1 is made as oblique section, and this oblique section can make puncture procedure easier, reduces the wound to health, and the rear portion of puncture needle 1 is provided with needle stand 5; Described epitheca 2 is a hollow tube body, the internal diameter of epitheca 2 is suitable mutually with the external diameter of puncture needle 1, and epitheca 2 is enclosed within on the puncture needle 1 and can moves along puncture needle 1, and epitheca 2 is stretched out in the front portion of puncture needle 1, the afterbody of epitheca 2 is provided with sheath seat 3, and this sheath seat 3 is connected on the needle stand 5 at puncture needle 1 rear portion.
As shown in Figure 1 and Figure 2, the sheath seat 3 of described epitheca 2 rear ends is provided with the holding part 4 of being convenient to loading or unloading operation; This holding part 4 comprises front end panel 9, rear bearing sheet 6 and holds plate 7, and front end panel 9, rear bearing sheet 6 are set directly on the sheath seat 3, and front end panel 9, rear bearing sheet 6 are parallel to each other; The described plate 7 that holds has two, two both sides that are arranged on epitheca 2 rear end sheath seats 3 with holding plate 7 centrosymmetry, and two two ends that hold plate 7 are connected on front end panel 9, the rear bearing sheet 6.Described two hold plate 7 and are the arc of middle indent, hold the shape that plate 7 adapts to finger thereby can make, and guarantee to hold stable; In addition, described holding preferably is provided with anti-skidding convex tendon 8 on plate 7 lateral surface, and anti-skidding convex tendon 8 has not only increased intensity but also play effect attractive in appearance, anti-skidding, and is safe in utilization, comfortable, reliable.In order further to improve the puncture and intubation precision, preferably be provided with graduation mark on the described puncture needle 1, when epitheca 2 tail ends are positioned at the zero graduation position of puncture needle 1, epitheca 2 tips and puncture needle 1 most advanced and sophisticated the coincidence.By reading the scale position of epitheca 2 tail ends on puncture needle 1, can judge the degree of depth of epitheca 2.
Shown in Figure 2 as Fig. 1, described puncture needle 1 inner hollow, pumpback has blood back when the venipuncture success, is convenient to judge that puncture needle 1 has entered dark vein.The front end of described epitheca 2 is made as oblique section, can make things convenient for epitheca 2 to enter dark vein along puncture needle 1.
As Fig. 1, shown in Figure 3, when specifically using, epitheca 2 is enclosed within on the puncture needle 1, the needle stand 5 of puncture needle 1 connects syringe, and earlier with puncture needle 1 puncture, if the syringe pumpback has blood back, then explanation is punctured successfully, judges that puncture needle 1 has entered dark vein; Softly push epitheca 2 and epitheca 2 is fixed along puncture needle 1 then, withdraw from puncture needle 1 again, seal wire 10 is incorporated into dark vein via epitheca 2, withdraw from epitheca 2 at last, i.e. complete operation.
Claims (8)
1. disposable deep vein puncture trocar is characterized in that: this paracentesis trocar comprises puncture needle (1) and epitheca (2), and the front end of puncture needle (1) is made as oblique section, and the rear portion of puncture needle (1) is provided with needle stand (5); Described epitheca (2) is a hollow tube body, the internal diameter of epitheca (2) is suitable mutually with the external diameter of puncture needle (1), epitheca (2) is enclosed within puncture needle (1) and goes up also and can move along puncture needle (1), epitheca (2) is stretched out in the front portion of puncture needle (1), the afterbody of epitheca (2) is provided with sheath seat (3), and this sheath seat (3) is connected on the needle stand (5) at puncture needle (1) rear portion.
2. disposable deep vein puncture trocar as claimed in claim 1 is characterized in that: the sheath seat (3) of described epitheca (2) rear end is provided with the holding part (4) of being convenient to loading or unloading operation.
3. disposable deep vein puncture trocar as claimed in claim 2, it is characterized in that: described holding part (4) comprises front end panel (9), rear bearing sheet (6) and holds plate (7), front end panel (9), rear bearing sheet (6) are set directly on the sheath seat (3), and front end panel (9), rear bearing sheet (6) are parallel to each other; The described plate (7) that holds is two, two both sides that are arranged on epitheca (2) rear end sheath seat (3) with holding plate (7) centrosymmetry, and two two ends that hold plate (7) are connected on front end panel (9), the rear bearing sheet (6).
4. disposable deep vein puncture trocar as claimed in claim 3 is characterized in that: described two hold plate (7) and are the arc of middle indent.
5. as claim 3 or 4 described disposable deep vein puncture trocars, it is characterized in that: described plate (7) lateral surface that holds is provided with anti-skidding convex tendon (8).
6. disposable deep vein puncture trocar as claimed in claim 1 is characterized in that: described puncture needle (1) inner hollow.
7. disposable deep vein puncture trocar as claimed in claim 1 is characterized in that: the front end of described epitheca (2) is made as oblique section.
8. disposable deep vein puncture trocar as claimed in claim 1 is characterized in that: described puncture needle (1) is provided with graduation mark, and when epitheca (2) tail end was positioned at the zero graduation position of puncture needle (1), epitheca (2) is most advanced and sophisticated to be overlapped with puncture needle (1) is most advanced and sophisticated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202228448U CN201683989U (en) | 2010-06-01 | 2010-06-01 | Disposable deep venipuncture trocar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202228448U CN201683989U (en) | 2010-06-01 | 2010-06-01 | Disposable deep venipuncture trocar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201683989U true CN201683989U (en) | 2010-12-29 |
Family
ID=43372280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202228448U Expired - Fee Related CN201683989U (en) | 2010-06-01 | 2010-06-01 | Disposable deep venipuncture trocar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201683989U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895730A (en) * | 2012-11-07 | 2013-01-30 | *** | Disposable central vein puncture kit |
| CN104434275A (en) * | 2014-12-31 | 2015-03-25 | 东莞市南城医院 | Safety ruler guide percutaneous, hepatic and renal puncture suite |
-
2010
- 2010-06-01 CN CN2010202228448U patent/CN201683989U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895730A (en) * | 2012-11-07 | 2013-01-30 | *** | Disposable central vein puncture kit |
| CN104434275A (en) * | 2014-12-31 | 2015-03-25 | 东莞市南城医院 | Safety ruler guide percutaneous, hepatic and renal puncture suite |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20110601 |