CN214969937U

CN214969937U - Disposable arteriovenous internal fistula needle of improvement

Info

Publication number: CN214969937U
Application number: CN202121075082.8U
Authority: CN
Inventors: 陈伟
Original assignee: Xinghua People's Hospital
Current assignee: Xinghua People's Hospital
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-12-03
Anticipated expiration: 2031-05-19

Abstract

The utility model discloses a disposable arteriovenous internal fistula needle of improvement, include: fixed column, solid fixed ring, syringe needle and pipe, gu fixed ring's end installs the connecting pipe, the end of connecting pipe extends to in the fixed column, fixed pipe is still installed to the inside of fixed column, the upper end of fixed pipe extends to in the connecting pipe and is connected, lower extreme and pipe connection with the syringe needle, the syringe needle surface is provided with the scale, the surface of pipe is provided with the sign that is on a parallel with the pipe. The utility model has the advantages that the scale is arranged on the surface of the needle head to facilitate the observation of the penetration depth, and the mark is arranged on the catheter to facilitate the transfer of the area and the intravenous fistula needle; the fixing ring can be moved upwards to achieve the protection effect after the needle head is pulled out of the body of a patient, and the phenomenon of puncture is reduced.

Description

Disposable arteriovenous internal fistula needle of improvement

Technical Field

The utility model relates to the technical field of medical equipment, more specifically is a disposable arteriovenous internal fistula needle of improvement.

Background

An arteriovenous internal fistula needle is used for puncturing a mature arteriovenous internal fistula during hemodialysis and is connected with a blood loop to establish a temporary blood passage. Consists of a needle point, a needle wing and a pipeline.

At present, the existing arteriovenous internal fistula needle has the following problems: (1) the puncture length of the needle head is inconvenient to observe, whether the needle head slips or not is not convenient to know, and meanwhile, the split and intravenous fistula needle is inconvenient to distinguish; (2) the needle head is not protected after being pulled out, so that the medical staff is easy to stab when operating. For this reason, a new scheme needs to be designed to give improvements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improved disposable arteriovenous internal fistula needle, which solves the problems that the puncture length of a needle head is inconvenient to observe, whether the needle head slips or not is inconvenient to know, and transfer and intravenous internal fistula needles are inconvenient to distinguish; the needle head is not protected after being pulled out, so that the medical staff is easy to stab and hurt during operation, and the actual use requirement is met.

In order to achieve the above object, the utility model provides a following technical scheme: an improved disposable arteriovenous internal fistula needle comprising: fixed column, solid fixed ring, syringe needle and pipe, gu fixed ring's end installs the connecting pipe, the end of connecting pipe extends to in the fixed column, fixed pipe is still installed to the inside of fixed column, the upper end of fixed pipe extends to in the connecting pipe and is connected, lower extreme and pipe connection with the syringe needle, the syringe needle surface is provided with the scale, the surface of pipe is provided with the sign that is on a parallel with the pipe.

As an embodiment of the present invention, the fixing ring is sleeved on the needle head and the side wall of the fixing ring is provided with the movable needle wing, and the side wall of the fixing column is provided with the fixed needle wing.

As a preferred embodiment of the utility model, be provided with the mosaic strip on the outer wall of connecting pipe, the inner wall upper end and the lower extreme of fixed column are provided with respectively and inlay the spacing of being connected with the mosaic strip.

As a preferred embodiment of the utility model, two vertical movable grooves that set up are seted up to the symmetry on the outer wall of connecting pipe, the spliced pole is installed to the outer wall upper end of fixed pipe, the end of spliced pole pass the movable groove and with fixed column inner wall connection.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the needle point design scale mark is beneficial to the patrol observation of nurse clinical work, and the accurate assessment of needle insertion length when observing whether the internal fistula needle has slippage, aversion to and the puncture guarantees safety in patient's dialysis, avoids the emergence of internal fistula needle slippage incident. Originally the pipeline is transparent, designs red, blue mark that one parallels with the pipeline on the pipeline for the nurse distinguishes artery needle, vein needle, and the nurse can clearly distinguish the connection of arteriovenous when connecting the extrinsic cycle, so that nurse's work negligence connects blood circuit in interior hourglass needle end, and artery end is connected at vein needle end, avoids causing blood flow deficiency, blood recirculation, etc. in the dialysis. Ensuring the patients to fully dialyze and protect the arteriovenous internal fistula.

(2) The movable needle wing can be held and moved upwards after the needle head is pulled out, the connecting pipe is driven to move, the connecting pipe is connected with the limiting strip at the front end inside the fixed column, and the tip of the needle head is sleeved with the fixing ring, so that the puncture phenomenon is reduced.

Drawings

FIG. 1 is an external structure view of the improved disposable arteriovenous internal fistula needle of the present invention;

fig. 2 is an internal structure view of the improved disposable arteriovenous internal fistula needle of the utility model.

In the figure, 1, a fixed column; 2. a fixing ring; 3. a movable needle wing; 4. fixing the needle wing; 5. a conduit; 6. identifying; 7. a connecting pipe; 8. a needle head; 9. calibration; 10. a movable groove; 11. embedding strips; 12. a limiting strip; 13. connecting columns; 14. and fixing the tube.

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. 1-2, the present invention provides a technical solution: an improved disposable arteriovenous internal fistula needle comprising: fixed column 1, solid fixed ring 2, syringe needle 8 and pipe 5, connecting pipe 7 is installed to solid fixed ring 2's end, the end of connecting pipe 7 extends to in the fixed column 1, fixed pipe 14 is still installed to fixed column 1's inside, the upper end of fixed pipe 14 extends to in the connecting pipe 7 and is connected with syringe needle 8, the lower extreme is connected with pipe 5, syringe needle 8 surface is provided with scale 9, the surface of pipe 5 is provided with the sign 6 that is on a parallel with pipe 5, and sign 6 is red or blue for distinguish artery or vein needle.

In a further improvement, the fixing ring 2 is sleeved on the needle head 8, the side wall of the fixing ring 2 is provided with the movable needle wing 3, the side wall of the fixing column 1 is provided with the fixed needle wing 4, and the needle wing facilitates pricking and moving the fixing ring 2 upwards.

Further improved, be provided with on the outer wall of connecting pipe 7 and inlay strip 11, the inner wall upper end and the lower extreme of fixed column 1 are provided with respectively and inlay the spacing 12 of being connected with inlaying strip 11, and spacing 12 and the cooperation of inlaying strip 11 are used and can be played certain spacing effect to connecting pipe 7.

Specifically, two movable grooves 10 which are longitudinally arranged are symmetrically formed in the outer wall of the connecting pipe 7, a connecting column 13 is installed at the upper end of the outer wall of the fixed pipe 14, and the tail end of the connecting column 13 penetrates through the movable grooves 10 and is connected with the inner wall of the fixed column 1 to fix the connecting pipe 7.

The utility model discloses when using, the inspection tour that 6 marks are of value to nurse clinical work in needle point design scale is observed, observes internal fistula needle and has or not slippage, aversion to and the accurate aassessment of needle insertion length when the puncture, guarantee safety in the patient dialysis, avoid the emergence of internal fistula needle slippage incident. Originally the pipeline is transparent, designs red, blue mark that one parallels with the pipeline on the pipeline for the nurse distinguishes artery needle, vein needle, and the nurse can clearly distinguish the connection of arteriovenous when connecting the extrinsic cycle, so that nurse's work negligence connects blood circuit in interior hourglass needle end, and artery end is connected at vein needle end, avoids causing blood flow deficiency, blood recirculation, etc. in the dialysis. Ensuring the patients to fully dialyze and protect the arteriovenous internal fistula. The movable needle wing 3 can be held and moved up after the needle head 8 is pulled out, the connecting pipe 7 is driven to move, the connecting pipe 7 is connected with the limiting strip 12 at the front end inside the fixed column 1, the tip of the needle head 8 is sleeved with the fixing ring 2, and the phenomenon of puncture is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved disposable arteriovenous internal fistula needle comprising: fixed column (1), solid fixed ring (2), syringe needle (8) and pipe (5), its characterized in that: connecting pipe (7) are installed to the end of solid fixed ring (2), the end of connecting pipe (7) extends to in fixed column (1), fixed pipe (14) are still installed to the inside of fixed column (1), the upper end of fixed pipe (14) extends to in connecting pipe (7) and be connected, the lower extreme is connected with pipe (5) with syringe needle (8), syringe needle (8) surface is provided with scale (9), the surface of pipe (5) is provided with the sign that is on a parallel with the pipe.

2. The improved disposable arteriovenous internal fistula needle of claim 1 wherein: the fixed ring (2) is sleeved on the needle head (8) and the side wall of the fixed ring (2) is provided with a movable needle wing (3), and the side wall of the fixed column (1) is provided with a fixed needle wing (4).

3. The improved disposable arteriovenous internal fistula needle of claim 1 wherein: the outer wall of the connecting pipe (7) is provided with an embedding strip (11), and the upper end and the lower end of the inner wall of the fixing column (1) are respectively provided with a limiting strip (12) which is embedded and connected with the embedding strip (11).

4. The improved disposable arteriovenous internal fistula needle of claim 1 wherein: two movable grooves (10) which are longitudinally arranged are symmetrically formed in the outer wall of the connecting pipe (7), a connecting column (13) is installed at the upper end of the outer wall of the fixed pipe (14), and the tail end of the connecting column (13) penetrates through the movable grooves (10) and is connected with the inner wall of the fixed column (1).