CN215460931U - Indwelling needle - Google Patents
Indwelling needle Download PDFInfo
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- CN215460931U CN215460931U CN202120586819.6U CN202120586819U CN215460931U CN 215460931 U CN215460931 U CN 215460931U CN 202120586819 U CN202120586819 U CN 202120586819U CN 215460931 U CN215460931 U CN 215460931U
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- needle
- catheter
- temperature
- temperature measuring
- cavity
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Abstract
The utility model discloses an indwelling needle, which comprises: a catheter assembly, further comprising: the main catheter comprises an infusion cavity and a temperature measuring cavity; a catheter hub connected with the main catheter; a temperature measurement lead extending into the temperature measurement cavity through the catheter hub; the needle head component comprises a needle tube, a needle seat and a ventilation plug. The utility model can monitor the blood temperature of the patient in real time while carrying out intravenous transfusion or blood sample collection.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an indwelling needle.
Background
The indwelling needle is generally used together with an infusion apparatus and a blood transfusion apparatus, can be indwelling in a blood vessel of a patient for a period of time, and is used for intravenous transfusion, drug administration and blood sample collection. However, the structure and function of the remaining needle in the prior art are simple, and cannot meet the increasing demand.
SUMMERY OF THE UTILITY MODEL
The utility model provides an indwelling needle, which aims to solve the problem that the existing indwelling needle is simple in structure and cannot meet the requirement.
The indwelling needle provided according to the present invention comprises: a catheter assembly, further comprising: the main catheter comprises an infusion cavity and a temperature measuring cavity; a catheter hub connected with the main catheter; a temperature measurement lead extending into the temperature measurement cavity through the catheter hub; the needle head component comprises a needle tube, a needle seat and a ventilation plug.
The needle head assembly is connected with the catheter assembly, the infusion cavity of the main catheter is tightly matched with the outer wall of the needle tube, and the catheter seat is attached to the needle seat, so that the tail end of the main catheter does not exceed the needle point of the needle tube.
The temperature measuring lead comprises a temperature measuring probe connected with the temperature measuring lead, and the temperature measuring probe is arranged at the tail end of the temperature measuring cavity.
The temperature measurement conducting wire further comprises a temperature measurement interface.
Wherein, the tail end of the main catheter is a tapered tip part.
Wherein the infusion fluid chamber extends to the catheter hub.
Wherein, the temperature probe is a thermistor.
Wherein the catheter hub comprises a locking luer fitting.
According to the technical scheme of the utility model, the main catheter of the indwelling needle is internally provided with the separated infusion cavity and the temperature measuring cavity, and the temperature measuring probe in the temperature measuring cavity can be used for monitoring the blood temperature of the patient in real time while carrying out intravenous infusion or blood sample collection after the catheter is placed, thereby being beneficial to medical personnel to know the real-time condition of the patient, adjusting treatment measures in time and maintaining the internal environment stability of the patient.
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 application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a schematic view of an indwelling needle according to an embodiment of the present application;
FIG. 2A is a schematic view of a catheter assembly according to an embodiment of the present application;
FIG. 2B is an enlarged view of A in FIG. 2A;
FIG. 3 is a schematic view of a needle assembly according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
According to the present application, there is provided an indwelling needle having a temperature measuring function, which mainly comprises a catheter assembly 10 and a needle assembly 20, wherein the catheter assembly 10 and the needle assembly 20 are sleeved together, with reference to fig. 1 to 3.
In particular, the catheter assembly 10 comprises a main catheter 11, a catheter hub 12 and a temperature wire 13, wherein the catheter hub 12 is connected with the main catheter 11 and the temperature wire 13, respectively, and the catheter hub 12 further comprises a locking luer intended to be connected as a fluid path.
Referring to fig. 2A and 2B, the main conduit 11 includes an infusion lumen 15 and a temperature sensing lumen 16. The infusion lumen 15 extends from the tip 19 of the main catheter 11 up to the catheter hub 12 and can be externally connected to an infusion set or a blood transfusion set for intravenous infusion through a locking luer connector of the catheter hub 12. The tail end of the temperature measuring cavity 16 is provided with a temperature measuring probe 18 connected with the temperature measuring conducting wire 13, namely, one end of the temperature measuring conducting wire 13 is connected with the temperature measuring probe 18, and the other end is connected with the temperature measuring interface 14. The main duct 11 terminates with a tapered tip 19, and the thermometric cavity 16 terminates inside the tip 19. In a specific application, the temperature measuring probe 18 can be a thermistor for measuring the blood temperature of a human body, and the temperature measuring lead 13 can transmit the measured temperature data to an external monitor through the temperature measuring interface 14.
In the embodiment of the present application, the infusion cavity 15 and the temperature measurement cavity 16 are separated from each other and do not interfere with each other, the infusion cavity 15 occupies most of the area of the main duct 11, the temperature measurement cavity 16 occupies the area of the middle of the main duct 11, and the temperature measurement cavity 16 can be disposed in the wall of the main duct or integrated with the wall of the main duct.
Referring to fig. 3, the needle assembly 20 specifically includes a needle cannula 21, a hub 22, and a purge plug 23. The needle hub 22 abuts the catheter hub 12 such that the needle cannula 21 extends into the infusion lumen of said main catheter 11 and protrudes from the tip 19 of the main catheter 11. In actual use, when puncturing is performed, the needle tube 21 and the main catheter 11 are inserted into a blood vessel together, the needle tube 21 is withdrawn after the main catheter 11 is introduced into the blood vessel, the main catheter 11 is left in the blood vessel, and the catheter hub 12 is connected to an infusion set or a blood transfusion set to perform intravenous transfusion.
According to the technical scheme of the utility model, the main catheter of the indwelling needle is internally provided with the separated infusion cavity and the temperature measuring cavity, and the temperature measuring probe in the temperature measuring cavity can be used for monitoring the blood temperature of the patient in real time while carrying out intravenous infusion or blood sample collection after the catheter is placed, so that medical personnel can know the real-time condition of the patient, adjust treatment measures in time and maintain the internal environment stability of the patient. The utility model is a disposable medical appliance, has simple operation and high safety, can realize the monitoring of the blood temperature of the patient during the intravenous infusion treatment, adopts a real-time internal temperature measurement mode, has high measurement precision, and is beneficial to medical staff to timely and accurately master the vital signs of the patient.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. An indwelling needle, comprising:
a catheter assembly, further comprising:
the main catheter comprises an infusion cavity and a temperature measuring cavity;
a catheter hub connected with the main catheter;
a temperature measurement lead extending into the temperature measurement cavity through the catheter hub;
the needle head component comprises a needle tube, a needle seat and a ventilation plug.
2. The indwelling needle according to claim 1, wherein the needle assembly is connected to the catheter assembly, the infusion lumen of the main catheter is tightly fitted to the outer wall of the needle tube, and the catheter hub is attached to the needle hub so that the tip of the main catheter should not exceed the needle tip of the needle tube.
3. The indwelling needle according to claim 1, wherein the temperature measuring wire comprises a temperature measuring probe connected thereto, the temperature measuring probe being disposed at the distal end of the temperature measuring lumen.
4. The indwelling needle of claim 1, wherein the temperature sensing wire further comprises a temperature sensing port.
5. The indwelling needle according to claim 1, wherein the main catheter terminates in a tapered tip.
6. The indwelling needle according to claim 1, wherein the infusion lumen extends to the catheter hub.
7. The indwelling needle according to claim 3, wherein the temperature probe is a thermistor.
8. The indwelling needle according to claim 1, wherein the catheter hub comprises a locking luer fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120586819.6U CN215460931U (en) | 2021-03-23 | 2021-03-23 | Indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120586819.6U CN215460931U (en) | 2021-03-23 | 2021-03-23 | Indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215460931U true CN215460931U (en) | 2022-01-11 |
Family
ID=79772602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120586819.6U Active CN215460931U (en) | 2021-03-23 | 2021-03-23 | Indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215460931U (en) |
-
2021
- 2021-03-23 CN CN202120586819.6U patent/CN215460931U/en active Active
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