CN211047269U

CN211047269U - Double-layer silica gel heating pipe

Info

Publication number: CN211047269U
Application number: CN201922440692.2U
Authority: CN
Inventors: 李利; 孙远志; 陈素锋
Original assignee: Henan Linuo Medical Technology Co ltd
Current assignee: Henan Linuo Medical Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-07-17
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a double-layer silica gel heating pipe, which comprises an outer pipe made of heat-insulating silica gel and an inner pipe made of heat-conducting silica gel, wherein the outer wall of the inner pipe is connected with the inner wall of the outer pipe, the outer pipe and the inner pipe form a pipe body, a through groove is arranged on the pipe body along the length direction, and a blood transfusion and liquid transfusion pipe is embedded in the inner cavity of the pipe body through the through groove; at least two groups of electric heating wires are arranged in the inner pipe; a sensor cavity is arranged in the inner pipe, a baffle is fixed in the sensor cavity, and a temperature sensor is arranged on the baffle; the temperature sensor is positioned on the inner end surface of the sensor cavity, and the connecting circuit of the temperature sensor and the electric heating wire are connected with the electric control device of the heating instrument after extending out of the pipe body. The thermal conductivity of the air gap is low, so that the temperature sensor is protected from temperature interference in other directions. The heat pipe has high heat conduction efficiency, the utility model discloses in, temperature sensor directly experiences through the heat pipe and inlays the temperature of the blood transfusion transfer line of locating in the body inner chamber, has improved measured temperature's accuracy.

Description

Double-layer silica gel heating pipe

Technical Field

The utility model relates to the technical field of medical equipment.

Background

Hospitals often transfuse blood or fluid to patients. If the temperature of the blood or the liquid medicine input into the human body is too low, the pain of the patient can be brought, and even the adverse reaction of the patient can be caused. Therefore, blood or liquid medicine needs to be heated, and a heating instrument and a silica gel heating pipe 1 matched with the heating instrument are needed. As shown in fig. 1, an inner cavity 3 of the silica gel heating tube 1 is used for accommodating a blood transfusion infusion tube, an opening 2 is arranged on the side wall of the silica gel heating tube 1 along the length direction of the silica gel heating tube 1, and the blood transfusion infusion tube is embedded into the inner cavity 3 of the silica gel heating tube 1 through the opening 2 when in use. A plurality of electric heating wires 4 (such as carbon fiber heating wires) are embedded in the inner wall of the silica gel heating pipe 1 along the length direction of the silica gel heating pipe, and the end parts of the electric heating wires 4 extend out of the silica gel heating pipe 1 and are connected with an electric control device of the heating instrument.

In order to provide better blood transfusion and fluid transfusion temperature for patients, a temperature sensor 5 is arranged in the inner cavity 3 of the silica gel heating pipe 1, a signal wire of the temperature sensor 5 is embedded in the silica gel heating pipe 1 and finally extends out of the silica gel heating pipe 1 to be connected with an electric control device of a heater, and the temperature of the blood transfusion and fluid transfusion can be monitored at any time through a screen of the electric control device. The prior art for monitoring the temperature of blood transfusion and fluid transfusion has the following defects:

Firstly, the temperature sensor 5 is close to the inner wall of the silica gel heating pipe 1 so as to be close to the electric heating wire 4, so that the temperature measured by the temperature sensor 5 is higher, and the liquid temperature of blood transfusion and liquid transfusion can not be accurately reflected.

Secondly, in order to reduce the influence of the above defects, in the prior art, the temperature sensor 5 is not tightly attached to the inner wall of the silica gel heating tube 1, but is located in the inner cavity 3 of the silica gel heating tube 1, so that the temperature sensor 5 is less affected by the electric heating wire 4. However, this technique leads to new problems: the lead of the temperature sensor 5 extends into the inner cavity 3 of the silica gel heating tube 1, and the positions of the temperature sensor 5 and the lead thereof in the inner cavity 3 of the silica gel heating tube 1 can be changed in the process of blood transfusion and fluid infusion, which may result in enlarging the air gap between the temperature sensor 5 and the blood transfusion and fluid infusion tube, and result in that the temperature sensor 5 cannot accurately measure the temperature of the blood transfusion and fluid infusion.

If the silica gel heating pipe is made of silica gel with low heat conductivity coefficient, the efficiency of the electric heating wire for heating the blood transfusion and infusion pipe is greatly reduced; if the silica gel heating pipe is made of silica gel with high heat conductivity coefficient, the heat generated by the electric heating wire can be dissipated to the environment in a large amount, and the energy consumption is improved.

Although the above new problem is more accurate than the first one, there is still a possibility of large deviation, which causes discomfort to the patient and is not favorable for controlling the temperature condition of the blood transfusion and the fluid infusion.

The applicant designs two sets of technical solutions for solving the technical problems at the same time, and the application is one of the two technical solutions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-deck silica gel heating pipe avoids increaseing the air gap between temperature sensor and the blood transfusion transfer line in the use, makes temperature sensor avoid electric heating wire's too big influence again.

In order to achieve the purpose, the double-layer silica gel heating pipe comprises an outer pipe made of heat-insulating silica gel and an inner pipe made of heat-conducting silica gel, wherein the outer wall of the inner pipe is connected with the inner wall of the outer pipe, the outer pipe and the inner pipe form a pipe body, a pipe body inner cavity is used for accommodating a blood transfusion pipe, a through groove is formed in the pipe body along the length direction of the pipe body, and the blood transfusion pipe is embedded in the pipe body inner cavity through the through;

At least two groups of electric heating wires are arranged in the inner pipe; a sensor cavity is arranged in the inner pipe, a baffle is fixed in the sensor cavity, and a temperature sensor is arranged on the baffle;

One end face of the sensor cavity, facing the central line of the inner cavity of the tube body, is an inner end face, one end face of the sensor cavity, facing away from the central line of the inner cavity of the tube body, is an outer end face, and the end face of the sensor cavity, connecting the inner end face and the outer end face, is a side end face;

The temperature sensor is positioned on the inner end surface of the sensor cavity, and the connecting circuit of the temperature sensor and the electric heating wire are connected with the electric control device of the heating instrument after extending out of the pipe body.

A heat pipe is embedded in the inner pipe, one end of the heat pipe is connected with the temperature sensor, and the other end of the heat pipe is flush with the inner wall of the inner pipe; air gaps are arranged between the temperature sensor and the baffle thereof and the side end face and the outer end face of the sensor cavity.

The center line of the inner cavity of the tube body is taken as a symmetrical center line, and the inner tube body is provided with a symmetrical cavity which is symmetrical with the center of the sensor cavity.

The utility model discloses have following advantage:

The utility model provides a temperature sensor fixes on the baffle, and the in-process temperature sensor who avoids blood transfusion and infusion takes place the displacement and brings the deviation for the measurement. The temperature sensor is positioned on the inner end surface of the inner cavity of the tube body, is close to the blood transfusion tube and is far away from the electric heating wire, so that the influence of the electric heating wire on temperature measurement is reduced.

The outer tube is made by adiabatic silica gel, and the coefficient of thermal conductivity is low to reduce the heat that electric heating wire produced and pass through the utility model discloses an outwards speed that gives off of double-deck silica gel heating pipe plays heat retaining effect. The inner tube is made of heat-conducting silica gel, so that heat generated by the electric heating wire can be conveniently supplied to the blood transfusion and infusion tube. The double-layer pipes of the outer pipe and the inner pipe are arranged, so that heat preservation and heat transfer efficiency are considered.

The utility model discloses in, all have air gap between the side end face of temperature sensor and baffle and sensor cavity and the outer terminal surface, air gap's coefficient of heat conductivity is very low, makes temperature sensor avoid the temperature interference of other directions.

The heat pipe has high heat conduction efficiency, the utility model discloses in, temperature sensor directly experiences through the heat pipe and inlays the temperature of the blood transfusion transfer line of locating in the body inner chamber, has improved measured temperature's accuracy.

The symmetry cavity makes the utility model discloses a weight is more even, avoids the heavy phenomenon partially, reduces the material that the inner tube used simultaneously, reduces manufacturing cost.

In a word, the utility model discloses an air gap gets rid of the temperature interference of other directions, improves the heat conduction efficiency between temperature sensor and the blood transfusion transfer line through the heat pipe, compares and can improve the temperature measurement degree of accuracy in the past.

Drawings

FIG. 1 is a schematic cross-sectional view of a conventional single-layer silica gel heating tube;

Fig. 2 is a schematic cross-sectional view of the present invention.

Detailed Description

As shown in fig. 2, the double-layer silica gel heating tube of the present invention comprises an outer tube 6 made of heat-insulating silica gel and an inner tube 7 made of heat-conducting silica gel, wherein the outer wall of the inner tube 7 is connected with the inner wall of the outer tube 6, the outer tube 6 and the inner tube 7 form a tube body, a tube body inner cavity 8 is used for accommodating a blood transfusion tube 9, a through groove 10 is formed in the tube body along the length direction of the tube body, and the blood transfusion tube 9 is embedded in the tube body inner cavity 8;

At least two groups of electric heating wires 16 are arranged in the inner pipe 7; a sensor cavity 11 is arranged in the inner pipe 7, a baffle plate 12 is fixed in the sensor cavity 11, and a temperature sensor 13 is arranged on the baffle plate 12; the baffle 12 is made of a material having a low thermal conductivity, such as wood or rubber.

The center line of the inner cavity 8 of the tube body (the center line of a blood transfusion and infusion tube when in use) is taken as a symmetrical center line, and the inner tube 7 is provided with a symmetrical cavity 14 which is symmetrical with the center of the sensor cavity 11.

One end face of the sensor cavity 11, which faces the central line of the pipe body inner cavity 8, is an inner end face, one end face of the sensor cavity 11, which faces away from the central line of the pipe body inner cavity 8, is an outer end face, and the end face of the sensor cavity 11, which connects the inner end face and the outer end face, is a side end face;

The temperature sensor 13 is located on the inner end surface of the sensor cavity 11, and the connecting circuit of the temperature sensor 13 and the electric heating wire 16 extend out of the pipe body and then are connected with an electric control device of the existing heating instrument. The connection lines are conventional and not shown.

The outer tube 6 and the inner tube 7 can be bonded or connected by hot melting. The electric heating wire 16 is preferably a carbon fiber heating wire.

A heat pipe 15 is embedded in the inner pipe 7, one end of the heat pipe 15 is connected with the temperature sensor 13, and the other end of the heat pipe 15 is flush with the inner wall of the inner pipe 7; an air gap is arranged between the side end face and the outer end face of the temperature sensor 13 and the baffle plate 12 thereof and the sensor cavity 11.

When in use, the utility model is used as an accessory of the heating instrument, and the connecting circuit of the temperature sensor 13 and the electric heating wire 16 are connected with the electric control device of the heating instrument after extending out of the tube body. During blood transfusion and liquid transfusion, a blood transfusion liquid conveying pipe 9 is embedded into the inner cavity 8 of the pipe body through the through groove 10 on the pipe body, and the inner wall of the inner pipe 7 wraps the blood transfusion liquid conveying pipe 9 at the moment to prepare for heating the blood transfusion and liquid transfusion.

Then, the electric heating wire 16 is electrified through an electric control device of the warmer, the electric heating wire 16 starts to generate heat, and the heat is efficiently transferred to the blood transfusion infusion tube 9 through the inner tube 7 made of heat-conducting silica gel to heat the transported liquid. Because the outer tube 6 is made of heat-insulating silica gel, the heat emitted to the environment is little, and the effects of energy conservation and consumption reduction are achieved.

Air gaps are formed between the temperature sensor 13 and the baffle 12 thereof and the side end face and the outer end face of the sensor cavity 11, and the heat conductivity coefficient of the air gaps is very low, so that the temperature sensor 13 is free from temperature interference in other directions, the temperature of the blood transfusion liquid conveying pipe 9 is accurately sensed through the heat pipe 15 with extremely high heat conduction efficiency, and the temperature measurement accuracy is improved.

In the process of blood transfusion and fluid infusion, medical personnel monitor the real-time temperature of the blood transfusion and fluid infusion tube 9 through the screen of the heater, and a foundation is provided for accurately controlling the temperature in a preset range.

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

Claims

1. Double-deck silica gel heating pipe, its characterized in that: the heat-conducting silica gel transfusion tube comprises an outer tube made of heat-insulating silica gel and an inner tube made of heat-conducting silica gel, wherein the outer wall of the inner tube is connected with the inner wall of the outer tube, the outer tube and the inner tube form a tube body, an inner cavity of the tube body is used for accommodating a blood transfusion tube, a through groove is formed in the tube body along the length direction of the tube body, and the blood transfusion tube is embedded in the;

2. The double-layer silica gel heating pipe of claim 1, characterized in that: a heat pipe is embedded in the inner pipe, one end of the heat pipe is connected with the temperature sensor, and the other end of the heat pipe is flush with the inner wall of the inner pipe; air gaps are arranged between the temperature sensor and the baffle thereof and the side end face and the outer end face of the sensor cavity.

3. The double-layer silica gel heating pipe of claim 1, characterized in that: the center line of the inner cavity of the tube body is taken as a symmetrical center line, and the inner tube body is provided with a symmetrical cavity which is symmetrical with the center of the sensor cavity.