CN202207365U - Trocar capable of preventing blood from refluxing - Google Patents
Trocar capable of preventing blood from refluxing Download PDFInfo
- Publication number
- CN202207365U CN202207365U CN2011203089305U CN201120308930U CN202207365U CN 202207365 U CN202207365 U CN 202207365U CN 2011203089305 U CN2011203089305 U CN 2011203089305U CN 201120308930 U CN201120308930 U CN 201120308930U CN 202207365 U CN202207365 U CN 202207365U
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- CN
- China
- Prior art keywords
- needle cylinder
- needle guard
- trocar
- blood
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a trocar capable of preventing blood from refluxing, belonging to the technical field of medical instruments. The trocar consists of a needle cylinder, a needle core, a needle cylinder bushing, wherein the needle cylinder is internally provided with the needle core; the needle cylinder bushing is arranged on the needle cylinder; the needle cylinder consists of a needle cylinder hose and a needle cylinder holder; one end of the needle cylinder holder is provided with the needle cylinder hose, and the other end of the needle cylinder holder is provided with a connecting port; the upper end of the needle cylinder holder is provided with a medicine feeding port; a non-return valve is arranged on the needle cylinder holder at one side of the medicine feeding port; and a butterfly-shaped fixing piece is arranged on the needle cylinder holder below the medicine feeding port. The trocar disclosed by the utility model has a simple structure, is convenient to use, is capable of effectively preventing the blood from refluxing by the non-return valve arranged on the needle cylinder holder and solves the blood returning problem inevitably occurring in the process of pulling the needle core out in the traditional trocar; and the returned blood can bring the hidden danger of infection for medical personnel and easily cause the environment pollution problem. The trocar disclosed by the utility model has favorable popularized and used values.
Description
Technical field
This utility model relates to a kind of trocar that prevents that blood from refluxing, and belongs to technical field of medical instruments.
Background technology
Transfusion is to use the trocar mostly when patient's operation at present or first aid; The trocar is claimed remaining needle again; Constitute by needle guard, nook closing member, needle guard sleeve pipe; Needle guard is provided with connector and dosing mouth, can connect the ampoule conduit through connector behind the puncture extraction nook closing member and infuse, and can carry out the vein dosing through dosing mouth.Flexibility is good because the needle guard of the trocar has, transfusion soon, dropped stitch not, help reducing the patient because of the misery that the dropped stitch repeated localised puncture is caused, strive for rescue time, and the characteristics that reduce medical worker's workload, so obtained clinically using widely; But also there are many deficiencies; As: restive patient's vein blood back, the blood back phenomenon appears inevitably when nook closing member is extracted in the puncture completion, and the blood one of refluence comes to stay the hidden danger of infection to the medical worker; Two come very easily contaminated environment, enlarge contaminated area, increase the nosocomial infection chance.
Summary of the invention
The purpose of this utility model is: provide a kind of simple in structure, easy to use; The blood back phenomenon appears when extracting nook closing member inevitably to solve the existing trocar; The blood one that flows backwards to stay the hidden danger of infection to the medical worker, and two come the very easily trocar of the prevented blood backflow of environmental pollution problem.
The technical scheme of this utility model is:
A kind of trocar that prevents that blood from refluxing, it is made up of needle guard, nook closing member, needle guard sleeve pipe, is provided with nook closing member in the needle guard; Needle guard is provided with the needle guard sleeve pipe, it is characterized in that: needle guard is made up of needle guard flexible pipe and needle guard seat, and an end of needle guard seat is equipped with the needle guard flexible pipe; The other end of needle guard seat is provided with connector; The upper end of needle guard seat is provided with dosing mouth, and the needle guard seat of dosing mouth one side is provided with check-valves, and the needle guard seat of dosing mouth below is provided with the butterfly stator; Described dosing mouth is provided with end cap.
Described check-valves is by valve body, non-return sheet, elastic component, constitute by press button; Be provided with the non-return sheet in the valve body; The non-return sheet is provided with connecting rod, and the connecting rod upper end is provided with by press button, through installed part and valve body elastic component is installed on the connecting rod by the press button below.
The beneficial effect of this utility model is:
This trocar design that can prevent the blood backflow is simple; Easy to use, through the check-valves that is provided with on the needle guard seat, and the non-return sheet of installing through the elastic device activity in the check-valves; Can prevent effectively that blood from refluxing; Solved the existing trocar and when extracting nook closing member, occurred the blood back phenomenon inevitably, the blood one of refluence comes to stay the hidden danger of infection to the medical worker, and two come very easily problem of environment pollution caused.Have good value for applications.
Description of drawings:
Fig. 1 is for preventing the sectional structure sketch map of the trocar that blood refluxes;
Fig. 2 is for preventing the decomposition texture sketch map of the trocar that blood refluxes;
Fig. 3 is the structural representation of the check-valves that can prevent the trocar that blood refluxes.
Among the figure: 1, nook closing member, 2, the needle guard sleeve pipe, 3, the needle guard flexible pipe, 4, the needle guard seat, 5, connector, 6, dosing mouth; 7, end cap, 8, check-valves, 9, valve body, 10, the non-return sheet, 11, elastic component; 12, press press button, 13, connecting rod, 14, installed part, 15, the butterfly stator, 16, the needle guard through hole.
The specific embodiment:
This trocar that can prevent that blood from refluxing is made up of needle guard, nook closing member 1, needle guard sleeve pipe 2, is provided with nook closing member 1 in the needle guard, and needle guard is provided with needle guard sleeve pipe 2.Needle guard is made up of needle guard flexible pipe 3 and needle guard seat 4, and an end of needle guard seat 4 is fixed with needle guard flexible pipe 3, and the other end of needle guard seat 4 is provided with connector 5, and the effect of connector 5 is to be used for and being connected of transfusion catheter.
The upper end of needle guard seat 4 is provided with dosing mouth 6, is used for the vein dosing and uses, and dosing mouth 6 is provided with end cap 7, gets into to prevent foreign body.The needle guard seat 4 of dosing mouth 6 one sides is provided with check-valves 8; Check-valves 8 is by valve body 9, non-return sheet 10, elastic component 11, constitute by press button 12; Be provided with non-return sheet 10 in the valve body 9; Non-return sheet 10 is provided with connecting rod 13, and connecting rod 13 upper ends are provided with by press button 12, by through installed part 14 and valve body 9 elastic component 11 being installed on the connecting rod 13 of press button 12 belows.The needle guard seat 4 of dosing mouth 6 belows is provided with butterfly stator 15, with fixedly needle guard use.
Be opening under the check-valves 8 common states on this trocar needle guard; Use this trocar puncturing to accomplish when withdrawing from nook closing member 1,, can prevent that blood from refluxing through push the non-return sheet 10 descending needle guard through holes 16 that block by press button 12; After connecting transfusion catheter through connector 5; Unclamp by press button 12, non-return sheet 10 playbacks under the effect of elastic component 11, and needle guard through hole 16 is opened and can be carried out normal infusion.
This trocar design is simple; Easy to use; Through the check-valves that is provided with on the needle guard seat 4, can prevent effectively that blood from refluxing, and solved the existing trocar and when extracting nook closing member 1, occurred the blood back phenomenon inevitably; The blood one that flows backwards to stay the hidden danger of infection to the medical worker, and two come very easily problem of environment pollution caused.Have good value for applications.
Claims (2)
1. trocar that can prevent that blood from refluxing; It is made up of needle guard, nook closing member (1), needle guard sleeve pipe (3), is provided with nook closing member (1) in the needle guard, and needle guard is provided with needle guard sleeve pipe (3); It is characterized in that: needle guard is made up of needle guard flexible pipe (3) and needle guard seat (4); One end of needle guard seat (4) is equipped with needle guard flexible pipe (3), and the other end of needle guard seat (4) is provided with connector (5), and the upper end of needle guard seat (4) is provided with dosing mouth (6); The needle guard seat (4) of dosing mouth (6) one sides is provided with check-valves (8), and the needle guard seat (4) of dosing mouth (6) below is provided with butterfly stator (7); Described dosing mouth (6) is provided with end cap (7).
2. the trocar that prevents that blood from refluxing according to claim 1; It is characterized in that: described check-valves (8) by valve body (9), non-return sheet (10), elastic component (11), press press button (12) and constitute; Be provided with non-return sheet (10) in the valve body (9); Non-return sheet (10) is provided with connecting rod (13); Connecting rod (13) upper end is provided with by press button (12), goes up by the connecting rod (13) of press button (12) below and through installed part (14) and valve body (9) elastic component (11) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203089305U CN202207365U (en) | 2011-08-24 | 2011-08-24 | Trocar capable of preventing blood from refluxing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203089305U CN202207365U (en) | 2011-08-24 | 2011-08-24 | Trocar capable of preventing blood from refluxing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202207365U true CN202207365U (en) | 2012-05-02 |
Family
ID=45986922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203089305U Expired - Fee Related CN202207365U (en) | 2011-08-24 | 2011-08-24 | Trocar capable of preventing blood from refluxing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202207365U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106620949A (en) * | 2016-12-21 | 2017-05-10 | 谢世庚 | Straight-type vein detaining needle of multifunctional doser |
| CN107335107A (en) * | 2017-08-15 | 2017-11-10 | 西藏多欣医疗器械制造有限公司 | A kind of magnetic control self-sealing venous detaining needle |
-
2011
- 2011-08-24 CN CN2011203089305U patent/CN202207365U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106620949A (en) * | 2016-12-21 | 2017-05-10 | 谢世庚 | Straight-type vein detaining needle of multifunctional doser |
| CN107335107A (en) * | 2017-08-15 | 2017-11-10 | 西藏多欣医疗器械制造有限公司 | A kind of magnetic control self-sealing venous detaining needle |
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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: 20120502 Termination date: 20120824 |