CN210644754U - Venous indwelling needle - Google Patents
Venous indwelling needle Download PDFInfo
- Publication number
- CN210644754U CN210644754U CN201920968295.XU CN201920968295U CN210644754U CN 210644754 U CN210644754 U CN 210644754U CN 201920968295 U CN201920968295 U CN 201920968295U CN 210644754 U CN210644754 U CN 210644754U
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- catheter
- pipe
- needle
- seat
- left end
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Abstract
The utility model provides a needle is kept somewhere to vein, the needle tubing subassembly includes pipe seat and base, the connecting pipe sets up the one side at the pipe seat, and with the inside UNICOM of pipe seat, the left end and the pipe fixed connection of pipe seat, the inside fixed metal wedge that is provided with of pipe seat and pipe junction, the metal wedge is the cavity loudspeaker form, the great one side of its diameter is connected with the internal surface fixed connection of tube socket, the less one side of its diameter is connected with the internal surface fixed connection of pipe, the inside isolation stopper that is provided with of right-hand member of pipe, the left end fixedly connected with needle tubing of base, the needle tubing passes the isolation stopper of pipe seat right-hand member, and wear out in the pipe of follow pipe seat left end. The utility model discloses installed the metal wedge additional in the inside of pipe with the pipe seat junction, can effectively strengthen the joint strength of pipe and pipe seat, separated pipe and pipe seat when avoiding the patient activity, improved the security that the patient used the vein to keep somewhere the needle.
Description
Technical Field
The utility model relates to the field of medical and sanitary instruments, in particular to a vein indwelling needle.
Background
The use of remaining needle can reduce the misery that the infant caused because of relapse venipuncture and the fear of making a needle, alleviate the headings's anxiety, the clinical medicine of being convenient for, urgent, critical patient's rescue is used medicine, alleviate nurse's work load, it is painful to reduce the infant, therefore the vein is kept somewhere the needle and is being used widely in clinic, in the face of this special colony of infant, the length of vein is kept somewhere needle and the comfort of infant becomes nurse and the headings's problem of paying attention to, also is the prerequisite of sign and popularization that the needle of keeping somewhere was used successfully. However, the indwelling needle of the prior art has many disadvantages such as: the catheter and the catheter holder are generally and fixedly connected directly without using a reinforcing and fixing device, and the catheter holder are easily separated when a patient moves, so that the use risk of the patient is increased.
Disclosure of Invention
In order to overcome not enough among the prior art, the utility model provides a needle is kept somewhere to vein, its constitution includes the needle tubing subassembly, and one side of needle tubing subassembly is provided with the connecting pipe, and the connecting pipe passes through the hose to be connected with the hose seat, is provided with on the hose seat rather than assorted heparin cap, its characterized in that: the needle tubing assembly comprises a catheter seat and a base, the connecting pipe is arranged on one side of the catheter seat and is communicated with the inside of the catheter seat, the left end of the catheter seat is fixedly connected with the catheter, a metal wedge is fixedly arranged inside the catheter seat and the joint of the catheter, the metal wedge is in a hollow horn shape, one side with the larger diameter is fixedly connected with the inner surface of the tube seat, the other side with the smaller diameter is fixedly connected with the inner surface of the catheter, an isolating plug is arranged inside the right end of the catheter, the left end of the base is fixedly connected with a needle tubing, and the needle tubing penetrates through the isolating plug at the right end of the catheter seat and penetrates out of the catheter at the left end of the catheter seat.
In order to ensure that the effect of avoiding blood backflow is better, two isolating plugs are arranged inside the right end of the catheter.
In order to make the effect of the isolating plug better, the isolating plug can be a rubber ring.
In order to conveniently see the condition of blood backflow, the left end of the needle tube is provided with a concave opening, and the catheter is made of a transparent material.
In order to facilitate the insertion of a needle into a patient, a needle handle is fixedly arranged on one side of the base.
In order to better protect the catheter and the needle tube, the left end of the catheter seat is also movably provided with a protective sleeve, and the catheter is positioned in the protective sleeve.
In order to control the liquid inlet speed of the patient conveniently and prevent blood from flowing back, a water stop sheet is arranged on the hose.
The utility model has the advantages that:
1. the metal wedge is additionally arranged in the connecting part of the catheter and the catheter holder, so that the connecting strength of the catheter and the catheter holder can be effectively enhanced, the catheter and the catheter holder are separated from each other when a patient moves, and the safety of the patient using the venous indwelling needle is improved. After the metal wedge is reinforced, when the metal wedge is used for logistics transportation, the metal wedge is better in strength and not easy to damage when encountering the condition of road bumping.
2. The utility model discloses simple structure has just set up two sets of isolation plugs, can effectively improve the effect that prevents the blood reflux for its sealed effect is better, has avoided the sealed not good and the possibility of infection to appear of pipe seat.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic diagram of the construction of the various components of the needle cannula assembly.
In the figure: protective sheath 1, pipe 2, metal wedge 3, pipe seat 4, isolating plug 5, needle tubing 6, needle handle 7, hose 8, sealing strip 9, hose seat 10, heparin cap 11, base 12, needle tubing subassembly 13, concave type opening 14, connecting pipe 15.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
In fig. 1 and 2, a vein indwelling needle, its constitution includes needle tubing assembly 13, and one side of needle tubing assembly 13 is provided with connecting pipe 15, and connecting pipe 15 passes through hose 8 and is connected with hose seat 10, is provided with rather than assorted heparin cap 11 on the hose seat 10, its characterized in that: the needle tube assembly 13 comprises a catheter seat 4 and a base 12, the connecting tube 15 is arranged on one side of the catheter seat 4 and communicated with the inside of the catheter seat 4, the left end of the catheter seat 4 is fixedly connected with the catheter 2, a metal wedge 3 is fixedly arranged inside the joint of the catheter seat 4 and the catheter 2, the metal wedge 3 is in a hollow horn shape, one side with a larger diameter is fixedly connected with the inner surface of the tube seat 4, one side with a smaller diameter is fixedly connected with the inner surface of the catheter 2, an isolating plug 5 is arranged inside the right end of the catheter 2, a needle tube 6 is fixedly connected with the left end of the base 12, and the needle tube 6 penetrates through the isolating plug 5 at the right end of the catheter seat 4 and penetrates out of the catheter 2 at the left end of the catheter seat 4.
Two isolating plugs 5 are arranged inside the right end of the guide pipe 2.
The isolating plug 5 can be a rubber ring.
The left end of the needle tube 6 is provided with a concave opening 14, and the catheter 2 is made of transparent materials.
A needle handle 7 is fixedly arranged on one side of the base 12.
The left end of the catheter seat 4 is also movably provided with a protective sleeve 1, and the catheter 2 is positioned in the protective sleeve 1.
And a water stop sheet 9 is arranged on the hose 8.
The working principle is as follows: when the blood backflow prevention catheter is used, a doctor inserts the needle tube 6 into a vein of a patient, at the moment, blood of the patient flows out from the concave opening 14 in the needle tube 6, the catheter 2 is made of transparent materials, the doctor can conveniently observe the blood backflow situation of the patient, then the needle tube 6 is pulled out, the catheter 2 is left in the vein, and the isolating plug 5 contracts when the needle tube 6 is pulled out, so that the blood backflow is avoided.
Claims (7)
1. The utility model provides a needle is kept somewhere to vein, its constitution includes needle tubing subassembly (13), and one side of needle tubing subassembly (13) is provided with connecting pipe (15), and connecting pipe (15) are connected with hose seat (10) through hose (8), be provided with on hose seat (10) rather than assorted heparin cap (11), its characterized in that: the needle tube assembly (13) comprises a catheter holder (4) and a base (12), the connecting tube (15) is arranged on one side of the catheter holder (4), and is communicated with the inside of the catheter seat (4), the left end of the catheter seat (4) is fixedly connected with the catheter (2), a metal wedge (3) is fixedly arranged inside the joint of the catheter seat (4) and the catheter (2), the metal wedge (3) is in a hollow horn shape, the surface with larger diameter is fixedly connected with the inner surface of the tube seat (4), the surface with smaller diameter is fixedly connected with the inner surface of the guide tube (2), an isolation plug (5) is arranged inside the right end of the conduit (2), a needle tube (6) is fixedly connected with the left end of the base (12), the needle tube (6) penetrates through the isolating plug (5) at the right end of the catheter seat (4) and penetrates out of the catheter (2) at the left end of the catheter seat (4).
2. The venous indwelling needle of claim 1, wherein: two isolating plugs (5) are arranged inside the right end of the guide pipe (2).
3. The venous indwelling needle of claim 1, wherein: the isolating plug (5) can be a rubber ring.
4. The venous indwelling needle of claim 1, wherein: the left end of the needle tube (6) is provided with a concave opening (14), and the catheter (2) is made of transparent materials.
5. The venous indwelling needle of claim 1, wherein: a needle handle (7) is fixedly arranged on one side of the base (12).
6. The venous indwelling needle of claim 1, wherein: the left end of the catheter seat (4) is also movably provided with a protective sleeve (1), and the catheter (2) is positioned in the protective sleeve (1).
7. The venous indwelling needle of claim 1, wherein: and a water stop sheet (9) is arranged on the hose (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920968295.XU CN210644754U (en) | 2019-06-26 | 2019-06-26 | Venous indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920968295.XU CN210644754U (en) | 2019-06-26 | 2019-06-26 | Venous indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210644754U true CN210644754U (en) | 2020-06-02 |
Family
ID=70823561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920968295.XU Active CN210644754U (en) | 2019-06-26 | 2019-06-26 | Venous indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210644754U (en) |
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2019
- 2019-06-26 CN CN201920968295.XU patent/CN210644754U/en active Active
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| GR01 | Patent grant |