CN219307571U - Anti-reflux indwelling needle - Google Patents
Anti-reflux indwelling needle Download PDFInfo
- Publication number
- CN219307571U CN219307571U CN202221034394.9U CN202221034394U CN219307571U CN 219307571 U CN219307571 U CN 219307571U CN 202221034394 U CN202221034394 U CN 202221034394U CN 219307571 U CN219307571 U CN 219307571U
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- seat
- needle
- hose
- tube seat
- reflux
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Abstract
The utility model relates to an anti-reflux indwelling needle, comprising: a funnel-shaped limit groove is fixedly arranged in the front end of the tube seat; the tail end of the outer needle is penetrated through the front end of the tube seat and is correspondingly connected with the lower end of the limit groove; the inner needle is penetrated in the outer needle, the front end of the inner needle penetrates out of the outer needle, and the tail end of the inner needle penetrates through the limit groove and the isolating plug fixedly arranged in the tube seat and is fixedly connected with the needle seat inserted at the tail end of the tube seat; one end of the hose connecting seat is obliquely communicated with the limiting groove in the tube seat and the cavity of the isolating plug, and the other end of the hose connecting seat is communicated with the infusion three-way pipe through a hose; the backflow prevention mechanism is arranged in the hose connecting seat and used for preventing blood from flowing back into the hose; the anti-reflux mechanism comprises a fixed seat and a one-way blockage. The utility model adopts one-way blocking to achieve the aim of preventing the backflow of blood, has good effect, ensures the medical safety, simultaneously reduces the pain of patients, further avoids the situation that the hose is blocked, and further reduces the harm caused by misoperation.
Description
Technical Field
The utility model relates to a medical auxiliary device, in particular to an anti-backflow indwelling needle.
Background
The indwelling needle is widely used clinically, when the indwelling needle is used, the indwelling catheter is guided to enter a vein of a human body through the puncture steel needle, puncture success is confirmed after blood return is seen, then the puncture steel needle is pulled out, the indwelling catheter is reserved in the vein, and an infusion apparatus is externally connected. However, if the operation is not performed or the venous blood vessel is not compacted, a blood leakage condition occurs, and infection is likely to occur, and further, thrombus is likely to form in the blood in the tube of the indwelling needle, the tube is blocked, or iatrogenic infection occurs, which increases the pain of the patient.
Disclosure of Invention
In view of the above, an object of the present utility model is to provide an anti-reflux indwelling needle, which prevents the phenomenon of blood outflow and blood return.
In order to achieve the above purpose, the following technical scheme is adopted:
an anti-reflux indwelling needle comprising:
the front end of the tube seat is fixedly provided with a funnel-shaped limit groove which is made of hard materials;
the tail end of the outer needle is penetrated at the front end of the tube seat and is correspondingly connected with the lower end of the limit groove, and is made of soft transparent material;
the inner needle is penetrated in the outer needle, the front end of the inner needle penetrates out of the outer needle, and the tail end of the inner needle penetrates through the limit groove and the isolation plug fixedly arranged in the tube seat and is fixedly connected with the needle seat inserted at the tail end of the tube seat;
one end of the hose connecting seat is obliquely communicated with the limiting groove in the tube seat and the cavity of the isolating plug, and the other end of the hose connecting seat is communicated with the infusion three-way pipe through a hose;
the backflow prevention mechanism is arranged in the hose connecting seat and used for preventing blood from flowing back into the hose;
wherein, prevent that the mechanism against current includes fixing base and one-way jam.
As a further improvement of the utility model: the fixing seat is fixedly arranged in the hose connecting seat, the unidirectional blocking is fixedly arranged on the fixing seat, the unidirectional blocking is in a conical barrel shape, the tip end of the unidirectional blocking is uniformly divided into 3-4 petals, and meanwhile, the tip end points to the axis of the tube seat.
As a further improvement of the utility model: the front end of the tube seat is sleeved with a needle sleeve for protecting the outer needle and the inner needle.
As a further improvement of the utility model: one side of the needle seat is provided with a hand-held part which is convenient for pulling out the inner needle.
As a further improvement of the utility model: and a water stop clamp is clamped on the hose.
The beneficial effects of the utility model are as follows:
the utility model has ingenious design, adopts one-way blockage, has simple structure, is easy to realize and manufacture, achieves the aim of preventing blood from flowing backwards, has good effect, ensures medical safety, simultaneously reduces the pain of patients, further avoids the situation that the hose is blocked, and further reduces the harm caused by misoperation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a partial enlarged view of 9 in fig. 1.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
Please refer to fig. 1-2:
an anti-reflux indwelling needle comprising:
the tube seat 1 is fixedly provided with a funnel-shaped limit groove 2 in the front end and is made of hard materials;
the tail end of the outer needle 3 is penetrated at the front end of the tube seat 1 and correspondingly connected with the lower end of the limit groove 2, and is made of soft transparent material;
the inner needle 4 is made of metal materials and is penetrated in the outer needle 3, the front end of the inner needle 4 penetrates out of the outer needle 3, the tail end of the inner needle penetrates through the limit groove 2 and the isolating plug 5 fixedly arranged in the tube seat 1 to be fixedly connected with the needle seat 6 inserted at the tail end of the tube seat 1, and the inner needle 4 can be pulled out in a sliding way in the isolating plug 5;
one end of the hose connecting seat 7 is obliquely communicated with the limiting groove 2 in the tube seat 1 and the cavity of the isolating plug 5, and the other end of the hose connecting seat is communicated with the infusion three-way pipe through a hose 8;
the backflow prevention mechanism 9 is arranged in the hose connecting seat 7 and used for preventing blood from flowing back into the hose 8;
wherein, prevent against current mechanism 9 includes fixing base 91 and one-way jam 92, and fixing base 91 is fixed to be set up in hose connecting seat 7, and one-way jam 92 is fixed to be set up on fixing base 91, and one-way jam 92 is the circular cone bucket form, and its pointed end evenly divide into 3-4 lamella, simultaneously, pointed end is directed tube socket 1 axis.
The front end of the tube seat 1 is sleeved with a needle sleeve 12 for protecting the outer needle 3 and the inner needle 4, one side of the needle seat 6 is provided with a hand-held part 10 for conveniently pulling out the inner needle 4, and a water stop clamp 11 is clamped on the hose 8.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (2)
1. Anti-reflux indwelling needle, which is characterized by comprising:
the front end of the tube seat is fixedly provided with a funnel-shaped limit groove which is made of hard materials;
the tail end of the outer needle is penetrated at the front end of the tube seat and is correspondingly connected with the lower end of the limit groove, and is made of soft transparent material;
the inner needle is penetrated in the outer needle, the front end of the inner needle penetrates out of the outer needle, and the tail end of the inner needle penetrates through the limit groove and the isolation plug fixedly arranged in the tube seat and is fixedly connected with the needle seat inserted at the tail end of the tube seat;
one end of the hose connecting seat is obliquely communicated with the limiting groove in the tube seat and the cavity of the isolating plug, and the other end of the hose connecting seat is communicated with the infusion three-way pipe through a hose;
the backflow prevention mechanism is arranged in the hose connecting seat and used for preventing blood from flowing back into the hose;
wherein, the anti-reflux mechanism comprises a fixed seat and a one-way blockage;
the fixed seat is fixedly arranged in the hose connecting seat, the unidirectional block is fixedly arranged on the fixed seat, the unidirectional block is conical barrel-shaped, the tip end of the unidirectional block is uniformly divided into 3-4 petals, and meanwhile, the tip end points to the axis of the hose seat;
the front end of the tube seat is sleeved with a needle sleeve for protecting the outer needle and the inner needle;
and a water stop clamp is clamped on the hose.
2. The anti-reflux indwelling needle according to claim 1, in which: one side of the needle seat is provided with a hand-held part which is convenient for pulling out the inner needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221034394.9U CN219307571U (en) | 2022-04-30 | 2022-04-30 | Anti-reflux indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221034394.9U CN219307571U (en) | 2022-04-30 | 2022-04-30 | Anti-reflux indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219307571U true CN219307571U (en) | 2023-07-07 |
Family
ID=87020608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221034394.9U Active CN219307571U (en) | 2022-04-30 | 2022-04-30 | Anti-reflux indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219307571U (en) |
-
2022
- 2022-04-30 CN CN202221034394.9U patent/CN219307571U/en active Active
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