CN203208093U - Reinforced type infusion needle - Google Patents
Reinforced type infusion needle Download PDFInfo
- Publication number
- CN203208093U CN203208093U CN 201320100784 CN201320100784U CN203208093U CN 203208093 U CN203208093 U CN 203208093U CN 201320100784 CN201320100784 CN 201320100784 CN 201320100784 U CN201320100784 U CN 201320100784U CN 203208093 U CN203208093 U CN 203208093U
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- CN
- China
- Prior art keywords
- needle
- catheter
- assembly
- petal
- draw point
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- Expired - Lifetime
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Abstract
The utility model relates to a reinforced type infusion needle which comprises a puncturing needle assembly and an outer sleeve assembly. The puncturing needle assembly is composed of a steel needle, a needle base, a needle plug and a fixing ring. The outer sleeve assembly comprises a needle sleeve petal-shaped fixing piece which is sleeved outside the steel needle, a catheter which is provided with one end connected with the needle sleeve petal-shaped fixing piece and a three-way connector, wherein an operation line fixing ring is arranged at the outer portion of the catheter. The reinforced type infusion needle is characterized in that the catheter comprises a tube body and a reinforcing lining which is embedded in the tube body, one end of the catheter is connected with the three-way connector, and a position, close to the inserting end of the steel needle, of the steel needle is provided with a side hole which is used for enabling the blood flow situation to be observed. The reinforced type infusion needle has the advantages of being capable of being prevented from being bent in the clinical use process, guaranteeing the tube body to be unblocked and safe to use and ensuring the use effect, being convenient to use, safe, reliable, and capable of meeting various requirements in an ordinary heart surgery and a minimally access surgery.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly relates to a kind of reinforced catheter needle.
Background technology
In the cardiac operation under direct vision of implementing under the present known extracorporeal circulation, be the method that extensively adopts both at home and abroad in the cold cardioplegic solution of aortic root puncture perfusion.The catheter needle three way cock of Ying Yonging connects fixedly petal of needle cannula clinically, owing near the catheter needle insertion end, namely near patient, can influence doctor's surgical field of view when operation.Traditional catheter needle draw point does not have STH, can't observe the blood flow artificial situation during operation, causes medical personnel can only judge by rule of thumb whether puncture is successful.In addition, existing catheter needle gives a discount in clinical use easily because catheter main body is softer, influences puncture procedure.
Summary of the invention
This utility model provides a kind of simple in structure and be convenient to the reinforced catheter needle of medical personnel's operation for solving the technical problem that exists in the known technology.
The technical scheme that this utility model is taked for the technical problem that exists in the solution known technology is:
Reinforced catheter needle, comprise puncture needle assembly and trocar sheath assembly, the puncture needle assembly is to be made of draw point, needle stand, pin plug and retainer ring, the trocar sheath assembly comprises the fixing fixing conduit that is connected of petal of petal, an end and needle cannula of needle cannula that is sleeved on the draw point outside, described conduit outside is provided with the surgical thread retainer ring, it is characterized in that: described conduit comprises body and is embedded in the interior reinforcing line of body, conduit connects the three way cock near on the end of needle stand, and draw point has for the side opening of observing blood circumstance near insertion end.
This utility model can also adopt following technical scheme:
The described reinforcing line that is embedded in the body adopts spiral stainless steel silk structure, and described reinforcing line is coated in the body fully, does not have exposedly, can guarantee that so the anti-extruding of intubate, bend resistance, pliability are good.
Advantage and the good effect that the utlity model has are: because this utility model adopts technique scheme, namely the three way cock is connected in external end, does not influence surgical field of view, is convenient to doctor's operation technique; Be shaped on STH at draw point near the insertion end position, can conveniently observe blood circumstance, provide convenience for the doctor judges the puncture success or not.This catheter needle is provided with locating ring in the draw point outside, guarantees that the draw point needle point accurately locatees, and is beneficial to puncture; The body design that a part lengthens is applicable to the needs of heart small incision surgery, is convenient to the far-end puncture; Catheter main body partly adopts spiral wire reinforcing line structure, can prevent from bending occurring in clinical use, guarantees the unimpeded and safety of body, guarantees result of use.This catheter needle is esy to use, safe and reliable, can satisfy the multiple needs of heart general surgery and small incision surgery.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of this utility model draw point.
Among the figure: 1, draw point; 1-1, side opening; 2, the fixing petal of needle cannula; 3, surgical thread retainer ring; 4, three way cock; 5, needle stand; 6, pin plug; 7, conduit; 8, retainer ring; 9, reinforcing line.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1 and Fig. 2, reinforced catheter needle, comprise puncture needle assembly and trocar sheath assembly, the puncture needle assembly is to be made of draw point 1, needle stand 5, pin plug 6 and retainer ring 8, the trocar sheath assembly comprises the fixing fixing conduit 7, the three way cock 4 that are connected of petal of petal 2, an end and needle cannula of needle cannula who is sleeved on the draw point outside, and described conduit outside is provided with surgical thread retainer ring 3.Described conduit comprises body and is embedded in the interior reinforcing line 9 of body that connect three way cock 4 on the close end of needle stand of conduit, draw point has for the side opening 1-1 that observes blood circumstance near insertion end.Described draw point 1 outside is provided with locating ring, can guarantee the accurate location of draw point needle point like this, is conducive to puncture.In the present embodiment, the described reinforcing line that is embedded in the body adopts spiral stainless steel silk structure, and described reinforcing line is coated in the body fully, does not have exposedly, can guarantee that so the anti-extruding of intubate, bend resistance, pliability are good.
Earlier the needle shield pipe is pulled out during use, then the catheter needle insertion end is inserted the patient vessel, when observing the draw point side opening and have blood to flow out, the needle stand of outwarding winding is extracted the puncture needle assembly, and the external end of thimble assembly connects the cardioplegic solution device for casting and pours into outside.
Claims (2)
1. reinforced catheter needle, comprise puncture needle assembly and trocar sheath assembly, the puncture needle assembly is to be made of draw point, needle stand, pin plug and retainer ring, the trocar sheath assembly comprises the fixing fixing conduit that is connected of petal of petal, an end and needle cannula of needle cannula that is sleeved on the draw point outside, described conduit outside is provided with the surgical thread retainer ring, it is characterized in that: described conduit comprises body and is embedded in the interior reinforcing line of body, conduit connects the three way cock near on the end of needle stand, and draw point has for the side opening of observing blood circumstance near insertion end.
2. reinforced catheter needle according to claim 1 is characterized in that: the described reinforcing line employing spiral stainless steel silk structure that is embedded in the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100784 CN203208093U (en) | 2013-03-06 | 2013-03-06 | Reinforced type infusion needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100784 CN203208093U (en) | 2013-03-06 | 2013-03-06 | Reinforced type infusion needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203208093U true CN203208093U (en) | 2013-09-25 |
Family
ID=49197674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320100784 Expired - Lifetime CN203208093U (en) | 2013-03-06 | 2013-03-06 | Reinforced type infusion needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203208093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105962999A (en) * | 2016-04-20 | 2016-09-28 | 中国人民解放军第四军医大学 | Petal-shaped damping puncture apparatus for anterior mediastinum minimally invasive surgery and using method of puncture apparatus |
| CN112790188A (en) * | 2019-10-28 | 2021-05-14 | 西安交通大学医学院第一附属医院 | Rapid perfusion device for liver supply in liver transplantation |
-
2013
- 2013-03-06 CN CN 201320100784 patent/CN203208093U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105962999A (en) * | 2016-04-20 | 2016-09-28 | 中国人民解放军第四军医大学 | Petal-shaped damping puncture apparatus for anterior mediastinum minimally invasive surgery and using method of puncture apparatus |
| CN112790188A (en) * | 2019-10-28 | 2021-05-14 | 西安交通大学医学院第一附属医院 | Rapid perfusion device for liver supply in liver transplantation |
| CN112790188B (en) * | 2019-10-28 | 2022-06-17 | 西安交通大学医学院第一附属医院 | Rapid perfusion device for liver supply in liver transplantation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
|
| CX01 | Expiry of patent term |