CN213724101U

CN213724101U - Venous indwelling needle for thermal imaging

Info

Publication number: CN213724101U
Application number: CN202021885393.6U
Authority: CN
Inventors: 张传雷; 高瑛; 王国辉
Original assignee: Suzhou Linhwa Medical Devices Co ltd
Current assignee: Suzhou Linhwa Medical Devices Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-07-20
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a needle is kept somewhere to vein for thermal imaging, catheter subassembly and needle tubing subassembly including interconnect, the catheter subassembly includes the pipe seat and fixes at its distal end, is used for the pipe of infusion, the needle tubing subassembly includes needle tube seat and needle tubing at least, the tail end of needle tubing is inserted and is located in the needle tube seat and reciprocal anchorage, the front end of needle tubing passes the cavity of pipe is inside and stretches out, the tail end of needle tubing is provided with the light source, the light that the light source produced can pass the needle tubing illuminates the blood vessel, be provided with in the needle tube seat for the power of light source power supply. The beneficial effects of the utility model are mainly embodied in that: the tail end of the needle tube is provided with the light source capable of emitting light, so that light emitted by the light source can penetrate through the needle tube to illuminate the blood vessel, and a detection mechanism is conveniently matched to enable medical workers to observe whether the needle tube correctly penetrates into the blood vessel or not, so that the use accuracy of the indwelling needle is improved.

Description

Venous indwelling needle for thermal imaging

Technical Field

The utility model relates to the technical field of injection instruments, in particular to a vein indwelling needle for thermal imaging.

Background

After the vein indwelling needle is successfully punctured, the steel hard needle core is drawn out, the soft catheter is reserved in the blood vessel of the patient, the catheter cannot damage the blood vessel, and the phenomenon that the blood flow is insufficient due to the fact that the needle hole of the traditional puncture needle is attached to the blood vessel wall is avoided. When the intravenous indwelling needle is used, the body of a patient can not be moved to cause sudden change of blood flow, the patient does not need to worry about that the needle punctures the blood vessel, the pain of the patient caused by repeated venipuncture and the fear of injection can be reduced, the anxiety of family members is relieved, the clinical medication is convenient, the emergency medication of the urgent and critical patients is realized, the workload of nurses is relieved, the pain of the patient is reduced, and therefore the intravenous indwelling needle is widely applied clinically.

When the existing indwelling needle is used, whether a catheter is correctly inserted into a blood vessel cannot be accurately judged, so that the indwelling needle is difficult to use, a patient can suffer unnecessary pain, and other dangers can be caused by the insertion failure of the indwelling needle. Therefore, how to ensure the successful penetration of the indwelling needle into the blood vessel is an urgent problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a vein indwelling needle for thermal imaging.

The purpose of the utility model is realized through the following technical scheme:

but needle is kept somewhere to heat for video picture, including interconnect's pipe subassembly and needle tubing subassembly, the pipe subassembly includes the pipe seat and fixes at its distal end, is used for the pipe of infusion, the needle tubing subassembly includes needle tube seat and needle tubing at least, the tail end of needle tubing is inserted and is located in the needle tube seat and reciprocal anchorage, the front end of needle tubing passes the cavity of pipe is inside and stretches out, the tail end of needle tubing is provided with the light source, the light that the light source produced can pass the needle tubing illuminates the blood vessel, be provided with in the needle tubing seat for the power of light source power supply.

Preferably, a fixing plate is arranged in the needle tube seat, a tube body of the needle tube is fixedly connected with the fixing plate, the tail end of the needle tube penetrates through the fixing plate, a rear cover is arranged at the tail end of the needle tube seat, an accommodating cavity is formed between the fixing plate and the rear cover, and the light source and the power source are arranged in the accommodating cavity.

Preferably, a circuit board is arranged between the light source and the power supply.

Preferably, the top end of the catheter is provided with a slope inclined towards the central axis of the catheter, and the outer side of the slope is coated with a layer of color-changing film.

Preferably, the color-changing film is a thermochromic material which changes color upon contact with blood.

Preferably, a sealing plug is arranged in the catheter holder near the tail end of the catheter holder.

Preferably, one side of the catheter seat is provided with an infusion port, and the infusion port is positioned between the sealing plug and the catheter.

Preferably, the infusion port is connected with an infusion joint through a long conduit.

Preferably, the long catheter is provided with a liquid stopping clamp.

Preferably, the needle tube is provided with a through hole near the front end thereof.

The beneficial effects of the utility model are mainly embodied in that:

1. the tail end of the needle tube is provided with the light source capable of emitting light, so that light emitted by the light source can penetrate through the needle tube to illuminate the blood vessel, and a detection mechanism is conveniently matched to enable medical personnel to observe whether the needle tube is correctly inserted into the blood vessel, so that the use accuracy of the indwelling needle is improved;

2. the top end of the catheter is coated with a color-changing film, so that the catheter can change color due to the heat of blood after entering a blood vessel and contacting the blood, and can be detected by a corresponding detection mechanism to detect whether the catheter enters the blood vessel or not;

3. the sealing plug is made by having elastic material for when the needle tubing withdraws from the back, its elasticity that has itself can make the through-hole closure that the needle tubing caused, in order to seal the bottom of needle tube seat prevents leaking of liquid medicine.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1: the utility model discloses the schematic diagram of the embodiment.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

As shown in fig. 1, the utility model discloses a needle is kept somewhere to vein for heat-assisted video picture, including interconnect's pipe subassembly and needle tubing assembly, the pipe subassembly includes pipe seat 1 and fixes at its distal end, is used for the pipe 2 of infusion, the needle tubing assembly includes needle tube seat 3 and needle tubing 4 at least, the tail end of needle tubing 4 is inserted and is located in the needle tube seat 3 and reciprocal anchorage, the front end of needle tubing 4 passes the hollow inside of pipe is stretched out, the tail end of needle tubing 4 is provided with light source 5, the light that light source 5 produced can pass needle tubing 4 illuminates the blood vessel, be provided with in the needle tube seat 3 for the power 6 of light source 5 power supply. The light source 5 in the preferred embodiment is an LED lamp bead. The tail end of the needle tube 4 is provided with the light source 5 capable of emitting light, so that light emitted by the light source 5 can penetrate through the needle tube 4 to illuminate a blood vessel, and medical personnel can observe whether the needle tube correctly penetrates into the blood vessel, and the use accuracy of the indwelling needle is improved. Further, the utility model discloses also can cooperate corresponding detection mechanism to further observer needle tubing 4's the condition of penetrating.

Specifically, as shown in fig. 1, a fixing plate 7 is arranged in the needle tube base 3, a tube body of the needle tube 4 is fixedly connected with the fixing plate 7, the tail end of the needle tube 4 penetrates through the fixing plate 7, a rear cover 8 is arranged at the tail end of the needle tube base 3, an accommodating cavity is formed between the fixing plate 7 and the rear cover 8, and the light source 5 and the power source 6 are arranged in the accommodating cavity. The rear cover 8 and the fixing plate 7 ensure the tightness of the receiving chamber, so that the power supply 6 is not affected by the external environment.

Further, a circuit board 9 is arranged between the light source 5 and the power supply 6. The light source 5 and the power source 6 are respectively connected with the circuit board 9 through wires. In addition, the prior art is not the key point of the present invention, and the description is not repeated here.

As shown in FIG. 1, the tip of the catheter 2 has a slant surface 201 inclined toward the central axis thereof, and the outer side of the slant surface 201 is coated with a color-changing film 10. Specifically, the color-changing film 10 is a thermochromic material, which changes color when it comes into contact with blood. The color change principle is as follows: the blood has a certain temperature, and after the catheter is inserted into the blood vessel, the color-changing film 10 can show different colors when meeting different temperatures. The color changing condition of the color changing film 10 can be observed by matching with a heat-sensitive detection device, so that whether the catheter 2 enters the blood vessel or not can be accurately judged.

In order to ensure the tightness inside the catheter hub 1, a sealing plug 11 is arranged inside the catheter hub 1 near the rear end thereof. The sealing plug 11 is made of elastic material, so that after the needle tube 4 is withdrawn, the through hole caused by the needle tube 4 is closed by the elasticity of the sealing plug to seal the bottom of the needle tube seat 3, and the leakage of the liquid medicine is prevented.

Catheter hub 1 one side has an infusion mouth 101, infusion mouth 101 is located sealing plug 11 with between the pipe 2 to the convenience infusion.

Specifically, the infusion port 101 is connected to an infusion connector 13 through a long conduit 12. The infusion connector 13 can be a single-head infusion connector or a multi-head infusion connector, so that medical staff can conveniently input liquid medicine.

In order to slow down the flow rate of the liquid medicine in the long catheter 12, a liquid stopping clamp 14 is arranged on the long catheter 12. This is prior art, and is not the key point of the present invention, and is not described here.

Further, the needle tube 4 is provided with a through hole 401 near the front end thereof. After the needle tube 4 is inserted into a blood vessel, blood can overflow from the through hole 401 to indicate the correctness of the insertion.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. Needle is kept somewhere to vein for thermal imaging, including interconnect's catheter subassembly and needle tubing subassembly, the catheter subassembly includes pipe seat (1) and fixes pipe (2) at its distal end, be used for the infusion, the needle tubing subassembly includes needle tubing seat (3) and needle tubing (4) at least, the tail end of needle tubing (4) is inserted and is located in needle tubing seat (3) and reciprocal anchorage, the front end of needle tubing (4) passes the cavity inside and the stretching out of pipe, its characterized in that: the tail end of the needle tube (4) is provided with a light source (5), light generated by the light source (5) can pass through the needle tube (4) to illuminate a blood vessel, and a power supply (6) for supplying power to the light source (5) is arranged in the needle tube seat (3).

2. The thermally imageable venous indwelling needle according to claim 1, wherein: be provided with fixed plate (7) in syringe seat (3), the pipe shaft of syringe (4) with fixed plate (7) looks rigid coupling, the tail end of syringe (4) passes fixed plate (7), the tail end of syringe seat (3) is provided with back lid (8), fixed plate (7) with form the holding chamber between back lid (8), light source (5) with power (6) set up in the holding intracavity.

3. The thermally imageable venous indwelling needle according to claim 2, wherein: a circuit board (9) is arranged between the light source (5) and the power supply (6).

4. The thermally imageable venous indwelling needle according to claim 1, wherein: the top end of the catheter (2) is provided with a slope (201) inclined towards the central axis of the catheter, and the outer side of the slope (201) is coated with a layer of color-changing film (10).

5. The thermally imageable venous indwelling needle according to claim 4, wherein: the color-changing film (10) is a thermochromic material which changes color when contacted with blood.

6. The thermally imageable venous indwelling needle according to claim 1, wherein: and a sealing plug (11) is arranged in the catheter seat (1) close to the tail end of the catheter seat.

7. The thermally imageable venous indwelling needle according to claim 6, wherein: catheter seat (1) one side has an infusion mouth (101), infusion mouth (101) are located sealing plug (11) with between catheter (2).

8. The thermally imageable venous indwelling needle according to claim 7, wherein: the transfusion port (101) is connected with a transfusion joint (13) through a long conduit (12).

9. The thermally imageable venous indwelling needle according to claim 8, wherein: the long catheter (12) is provided with a liquid stopping clamp (14).

10. The thermally imageable venous indwelling needle according to claim 1, wherein: the needle tube (4) is provided with a through hole (401) near the front end thereof.