CN211724197U

CN211724197U - Sectional type water constant temperature blood inlet and outlet pipe of continuous blood purification therapeutic apparatus

Info

Publication number: CN211724197U
Application number: CN201922299975.XU
Authority: CN
Inventors: 刘虹; 刘海洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-10-23
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a sectional water constant temperature blood inlet and outlet pipe of a continuous blood purification therapeutic apparatus, which consists of a blood inlet pipe and a blood outlet pipe; the inlet pipe and the outlet pipe of the continuous blood purification therapeutic apparatus are both provided with zero-distance blood temperature detectors which can detect the temperature of blood in the inlet pipe and the outlet pipe in real time, and a water temperature heating device is arranged to heat the blood so as to keep the temperature of the blood; the inlet pipe and the outlet pipe are divided into a multi-section constant temperature mode to ensure that the distance between the pipelines can be kept constant, the temperature of the blood from the outlet of the human body to the recirculation of the blood into the human body is basically kept unchanged, the problems that a patient feels cold, vasoconstriction and even thrombus and other dialysis related complications are caused due to the reduction of the temperature of the blood are well reduced or eliminated, and the treatment effect is improved.

Description

Sectional type water constant temperature blood inlet and outlet pipe of continuous blood purification therapeutic apparatus

The technical field is as follows:

the utility model relates to a sectional type water constant temperature blood inlet and outlet pipe of a continuous blood purification therapeutic apparatus.

Background art:

continuous blood purification (CRRT) is a treatment technique for critically ill patients; the continuous blood purification treatment needs to continuously purify blood in vitro for a long time even 24 hours every day, and how to keep the proper temperature of the blood infused into the body of the patient remains to be solved; in current clinical practice, the temperature of continuously infused blood is often too low, which causes the local low temperature of the blood infusion end and the hypothermia of the whole body of a patient, causes the patient to feel cold, vasoconstriction, even causes dialysis-related complications such as thrombus and the like, reduces the treatment effect and endangers the life of the patient.

The invention content is as follows:

the utility model aims at solving the existing problems and providing a sectional type water constant temperature blood inlet and outlet pipe of a continuous blood purification therapeutic apparatus.

The utility model adopts the following technical scheme to realize the purpose of the invention: a sectional water constant temperature blood inlet and outlet tube of continuous blood purification therapeutic apparatus is composed of a blood inlet tube 1 and a blood outlet tube 7; the blood inlet pipe 1 consists of a blood temperature detection pipe 2 at the needle insertion head, a first-section constant temperature pipe 3, a second-section constant temperature pipe 4, a third-section constant temperature pipe 5 and an equipment connecting pipe 6; the needle inserting head blood temperature detecting tube 2 is connected with an equipment connecting tube 6 through a first-section constant temperature tube 3, a second-section constant temperature tube 4 and a third-section constant temperature tube 5; the blood outflow tube 7 consists of a needle outlet head temperature detection tube 8, an outlet three-section constant temperature tube 9, an outlet two-section constant temperature tube 10, an outlet one-section constant temperature tube 11 and an outflow tube equipment connecting tube 12; the needle outlet head temperature detection tube 8 is connected with an outlet tube equipment connecting tube 12 through an outlet three-section constant temperature tube 9, an outlet two-section constant temperature tube 10 and an outlet one-section constant temperature tube 11; the needle inserting head blood temperature detecting tube 2 and the needle discharging head temperature detecting tube 8 are both composed of a zero-distance blood temperature detector 2-1 and a needle inserting head connecting tube 2-2; the zero-distance blood temperature detector 2-1 consists of a temperature detection connecting seat 2-1-1, a U-shaped hollow detection needle 2-1-2 and a temperature sensor 2-1-3; the temperature detection connecting seat 2-1-1 is provided with a U-shaped detection needle mounting through hole 2-1-1-1, a needle inserting head pipe connecting hole 2-1-1-2 and a segmented pipe connecting hole 2-1-1-3, and a detection hollow segment 2-1-1-4 is arranged in the middle; the U-shaped probe installation through hole 2-1-1-1, the probe head tube connecting hole 2-1-1-2 and the subsection tube connecting hole 2-1-1-3 are communicated with a probe hollow section 2-1-1-4 arranged in the middle; the left end of the needle inserting head connecting pipe 2-2 is arranged in the needle inserting head pipe connecting hole 2-1-1-2 and is sealed by glue; the U-shaped hollow probe 2-1-2 is arranged in the U-shaped probe mounting through hole 2-1-1-1 and is sealed by glue; the temperature sensor 2-1-3 is arranged in the U-shaped hollow probe 2-1-2.

In order to realize the constant temperature function, the inlet section of the constant temperature tube 3, the inlet section of the constant temperature tube 4, the inlet section of the constant temperature tube 5, the outlet section of the constant temperature tube 9, the outlet section of the constant temperature tube 10 and the outlet section of the constant temperature tube 11 are all composed of a zero distance blood temperature detector 2-1, a water constant temperature device 13 and a blood sectional tube 14; the water constant temperature device 13 consists of a hollow water tank 13-1, a water inlet pipe 13-2, a water outlet and exhaust pipe 13-3, a water temperature heater 13-4 and a water temperature detection sensor 13-5; the outer circle of the hollow water tank 13-1 is provided with a water outlet pipe mounting hole 13-1-3, a heater path hole 13-1-4 and a water inlet pipe connecting hole 13-1-5, the middle of the side surface is transversely provided with a blood conveying pipe mounting hole 13-1-1, and the side of the blood conveying pipe mounting hole 13-1-1 is provided with a water temperature detector mounting hole 13-1-2; the interior of the hollow water tank 13-1 is provided with a constant temperature water tank hollow 13-1-6; the water temperature detector mounting hole 13-1-2, the water outlet pipe mounting hole 13-1-3, the heater path hole 13-1-4 and the water inlet pipe connecting hole 13-1-5 are communicated with the cavity 13-1-6 of the constant temperature water tank; the water temperature detection sensor 13-5 is arranged in the water temperature detector mounting hole 13-1-2 and is sealed by glue; the water inlet pipe 13-2 is arranged in the water inlet pipe connecting hole 13-1-5 and is sealed by glue; the water outlet exhaust pipe 13-3 is arranged in the water outlet pipe mounting hole 13-1-3 and is sealed by glue; the water temperature heater 13-4 is composed of a hollow heating ring 13-4-1 and a power line 13-4-2; the hollow heating ring 13-4-1 is sleeved on the periphery of the tube wall of the blood transfusion tube mounting hole 13-1-1, a power line 13-4-2 of the hollow heating ring is drawn out through the heater path hole 13-1-4, and the power line 13-4-2 and the heater path hole 13-1-4 are sealed; the blood transfusion tube mounting hole 13-1-1 on the water constant temperature device 13 is sleeved on the outer surface of the blood subsection tube 14.

The utility model discloses a realize the nimble sealed to the drain pipe, be equipped with inlet tube lead screw end cap 13-3-1 on interior silk goes out water blast pipe 13-3, inlet tube lead screw end cap 13-3-1 is screwed up in the end of interior silk play water blast pipe 13-3 in a flexible way.

By adopting the technical scheme, the utility model discloses its purpose has been realized better, and zero distance blood temperature detector has all been equipped with on the business turn over pipe of this continuity blood purification therapeutic instrument, can survey the temperature of blood in the business turn over pipe in real time, and set up the temperature heating device and heated blood in order to keep the temperature of blood; the inlet pipe and the outlet pipe are divided into a multi-section constant temperature mode to ensure that the distance between the pipelines can be kept constant, the temperature of the blood from the outlet of the human body to the recirculation of the blood into the human body is basically kept unchanged, the problems that a patient feels cold, vasoconstriction and even thrombus and other dialysis related complications are caused due to the reduction of the temperature of the blood are well reduced or eliminated, and the treatment effect is improved.

Description of the drawings:

fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the sectional structure of the present invention.

Fig. 3 is a schematic structural diagram of the present invention,

numeral

2 or 8.

Fig. 4 is a schematic structural diagram of the utility model 2-1.

Figure 5 is a schematic structural diagram of the utility model 2-1-1.

Fig. 6 is a schematic structural diagram of the utility model 2-2.

Figure 7 is a schematic cross-sectional view of the structure of the utility model 2-1-1.

FIG. 8 is a schematic cross-sectional view of the synthetic structure of the present invention labeled 2-1-1 and 2-1-2.

Fig. 9 is a schematic structural diagram of the utility model 2-1-2.

Fig. 10 is a schematic cross-sectional view of the structure of the present invention designated by 2-1-2.

Figure 11 is a schematic structural diagram of the present invention, labeled 2-1-3.

Fig. 12 is a schematic structural diagram of the present invention, i.e.,

reference numeral

3 or 4, reference numeral 5, reference numeral 6, reference numeral 9, reference numeral 10, and reference numeral 11.

Fig. 13 is a schematic cross-sectional view showing the structure of the present invention, i.e., the

reference numeral

3 or 4, the reference numeral 5, the reference numeral 6, and the reference numeral 9, and the

reference numerals

10 and 11.

Fig. 14 is a schematic structural diagram of the present invention numeral 14.

Fig. 15 is a schematic structural diagram of the present invention numeral 13.

Fig. 16 is a schematic structural diagram of the utility model numeral 13-1.

Fig. 17 is a schematic cross-sectional view of the structure of the present invention designated by 13-1.

Fig. 18 is a schematic structural view of the utility model numeral 13-5.

Fig. 19 is a schematic structural view of the utility model numeral 13-4.

FIG. 20 is a schematic cross-sectional view of the composite structure of the present invention with reference numerals 13-1 and 13-4.

Fig. 21 is a schematic structural view of the utility model numeral 13-2.

Figure 22 is a schematic cross-sectional view of the structure of the present invention, labeled 13-3 and 13-3-1.

Fig. 23 is a schematic structural view of the

present invention numeral

6 or 12.

Description of reference numerals: blood inlet tube 1: inserting needle head blood temperature detecting tube 2: zero distance blood temperature probe 2-1: 2-1-1 of temperature detection connecting seat: the U-shaped probe needle mounting through hole 2-1-1-1: needle inserting head tube connecting hole 2-1-1-2: sectional pipe connecting holes 2-1-1-3: detecting hollow sections 2-1-1-4: u-shaped hollow probe 2-1-2: temperature sensors 2-1-3: needle insertion head connecting pipe 2-2: a first section of thermostatic tube 3: a second-stage thermostatic tube 4: three sections of constant temperature tubes 5: the equipment connecting pipe 6: blood outflow tube 7: needle outlet head temperature detection tube 8: three sections of constant temperature pipes 9 are produced: and (3) forming a two-section constant temperature tube 10: a section of the thermostatic tube 11 is output: outflow pipe apparatus connecting pipe 12: water thermostat 13: hollow water tank 13-1: blood transfusion tube mounting hole 13-1-1: water temperature detector mounting hole 13-1-2: outlet pipe mounting holes 13-1-3: heater path hole 13-1-4: inlet pipe connecting hole 13-1-5: the constant-temperature water tank is hollow 13-1-6: water inlet pipe 13-2: internal thread water outlet and exhaust pipe 13-3: water inlet pipe screw plug 13-3-1: water temperature heater 13-4: hollow heating ring 13-4-1: power supply line 13-4-2: water temperature detection sensor 13-5: a blood section tube 14.

The specific implementation mode is as follows:

the invention will be further described with reference to the accompanying drawings:

example 1:

according to the invention, one of the blood outlet tube and the blood inlet tube consists of a blood inlet tube 1 and a blood outlet tube 7; the blood inlet pipe 1 consists of a blood temperature detection pipe 2 at the needle insertion head, a first-section constant temperature pipe 3, a second-section constant temperature pipe 4, a third-section constant temperature pipe 5 and an equipment connecting pipe 6; the needle inserting head blood temperature detecting tube 2 is connected with an equipment connecting tube 6 through a first-section constant temperature tube 3, a second-section constant temperature tube 4 and a third-section constant temperature tube 5; the blood outflow tube 7 consists of a needle outlet head temperature detection tube 8, an outlet three-section constant temperature tube 9, an outlet two-section constant temperature tube 10, an outlet one-section constant temperature tube 11 and an outflow tube equipment connecting tube 12; the needle outlet head temperature detection tube 8 is connected with an outlet tube equipment connecting tube 12 through an outlet three-section constant temperature tube 9, an outlet two-section constant temperature tube 10 and an outlet one-section constant temperature tube 11; the needle inserting head blood temperature detecting tube 2 and the needle discharging head temperature detecting tube 8 are both composed of a zero-distance blood temperature detector 2-1 and a needle inserting head connecting tube 2-2; the zero-distance blood temperature detector 2-1 consists of a temperature detection connecting seat 2-1-1, a U-shaped hollow detection needle 2-1-2 and a temperature sensor 2-1-3; the temperature detection connecting seat 2-1-1 is provided with a U-shaped detection needle mounting through hole 2-1-1-1, a needle inserting head pipe connecting hole 2-1-1-2 and a segmented pipe connecting hole 2-1-1-3, and a detection hollow segment 2-1-1-4 is arranged in the middle; the U-shaped probe installation through hole 2-1-1-1, the probe head tube connecting hole 2-1-1-2 and the subsection tube connecting hole 2-1-1-3 are communicated with a probe hollow section 2-1-1-4 arranged in the middle; the left end of the needle inserting head connecting pipe 2-2 is arranged in the needle inserting head pipe connecting hole 2-1-1-2 and is sealed by glue; the U-shaped hollow probe 2-1-2 is arranged in the U-shaped probe mounting through hole 2-1-1-1 and is sealed by glue; the temperature sensor 2-1-3 is arranged in the U-shaped hollow probe 2-1-2.

Blood admission pipe 1 of the utility model indicate: blood flows from the patient's body into the medical tube of the device, into the blood inlet tube of the device, from the blood vessel of the body into the inlet tube of the device; the structure is shown as reference numeral 1 in figure 1 or figure 2.

The needle inserting head blood temperature detecting tube 2 of the utility model refers to: the blood inlet pipe 1 is provided with a pipe section part with a temperature detector, is connected with a needle head flowing out from a blood vessel of a human body and is used for detecting the real-time temperature of the blood which is inserted into the blood drawing needle head of the human body when the blood just flows out; the structure is shown in figure 3; the mounting position is shown as 2 in fig. 1 or fig. 2.

Zero distance blood temperature detector 2-1 mean: a temperature detector on the needle inserting head blood temperature detecting tube 2; the device has the function of detecting the real-time temperature of blood output from a patient, wherein the zero distance means that the outer surface of one end of the designed U-shaped hollow detection needle 2-1-2 is in zero-distance contact with the blood; the structure is shown in figure 4; the installation is shown as 2-1 in figure 3.

The temperature detection connecting seat 2-1-1 of the utility model refers to: a connector for connecting various pipelines and installing a temperature detector; a connecting seat of the zero-distance blood temperature detector 2-1 and the needle inserting head connecting pipe 2-2; the structure is shown in figure 5; in combination with other components as shown in figure 4.

The U-shaped probe pin installation through hole 2-1-1-1 of the utility model refers to: a mounting hole is designed on the upper surface of the temperature detection connecting seat 2-1-1; the U-shaped hollow probe needle is used for installing a U-shaped hollow probe needle 2-1-2; the design is shown as 2-1-1-1 in FIG. 5.

The utility model discloses an insert needle head tube connecting hole 2-1-1-2 mean: a connecting hole is designed at one end of the temperature detection connecting seat 2-1-1, and blood flows into a mounting hole of a connecting pipe of a blood drawing needle of the equipment from the body of a patient; the function is that the needle inserting head connecting pipe 2-2 is connected and installed; the design is shown as 2-1-1-2 in figure 5.

The sectional pipe connecting hole 2-1-1-3 of the utility model refers to: a connecting hole is designed at the other end of the temperature detection connecting seat 2-1-1; the function is to connect and install the blood supply liquid subsection tube 14; the design is shown as reference 2-1-1-3 in FIG. 7.

The hollow section 2-1-1-4 in the detection of the utility model refers to: the blood conveying space at the bottom in the temperature detection connecting seat 2-1-1 is also a space where the blood channel and the U-shaped hollow detection needle 2-1-2 meet; the design is shown as reference number 2-1-1-4 in figure 7.

The U-shaped hollow probe needle 2-1-2 of the utility model refers to: a medical U-shaped temperature probe; is a part of a zero-distance blood temperature detector 2-1, and the outer surface of one end of a U-shaped hollow detection needle 2-1-2 is in zero-distance contact with blood; the structure is shown in figure 9; the channels in contact with the blood are shown in FIG. 8; the temperature sensor is arranged in the center of a blood channel of an inlet pipe or an outlet pipe, realizes zero-distance contact with blood, can accurately detect the real-time temperature of the blood, and enables the temperature of the transmitted blood type to be more accurate; the installation is shown in figure 4, and the sectional view of the installation position is shown as the reference 2-1-2 in figure 8.

The temperature sensor 2-1-3 of the utility model refers to: a conventional temperature sensor for detecting temperature and transmitting induction data; a portion of zero distance blood temperature probe 2-1; the structure is shown in figure 11; the installation is shown as 2-1-3 in figure 4.

The needle inserting head connecting pipe 2-2 of the utility model means that: a medical connecting hose; the function of the needle is to connect the blood output needle; the structure is shown in figure 6; the installation is shown as 2-2 in figure 3.

Advance one section constant temperature tube 3 mean: a first length of thermostatic tubing after blood is output from the patient; the function of the temperature control device is to maintain the blood temperature of the section of blood circulation pipeline; the structure is shown in figure 12; the installation is shown as reference number 3 in figures 1 and 2.

Advance two-stage process constant temperature tube 4 indicate: a second length of thermostatic tubing after the blood has been output from the patient's body; the function of the temperature control device is to maintain the blood temperature of the section of blood circulation pipeline; the structure is shown in figure 12; the installation is shown as 4 in figures 1 and 2.

Advance three-section constant temperature tube 5 mean: a third section of thermostatic tube after the blood is output from the patient; the function of the temperature control device is to maintain the blood temperature of the section of blood circulation pipeline; the structure is shown in figure 12; the installation is shown as 5 in figures 1 and 2.

Equipment connecting pipe 6 mean: a medical hose connecting the blood inlet tube 1 with the equipment; the structure is shown in figure 23; the installation is shown as reference number 6 in figures 1 and 2.

The blood outflow tube 7 of the utility model is as follows: the blood flows into a medical tube of the body of a patient from the equipment, an outflow tube of the equipment, also called a blood backflow tube, and flows back into a blood vessel of the human body; the structure is shown as reference numeral 7 in figure 1 or figure 2.

The needle outlet head temperature detecting tube 8 of the utility model is as follows: the blood outflow tube 7 is provided with a tube section part with a temperature detector, is connected with the blood reflux needle head and is used for detecting the real-time temperature of the blood inserted into the human blood reflux needle head before flowing into the blood vessel of the human body; the structure is shown in figure 3; the mounting position is shown as 8 in fig. 1 or fig. 2.

Go out three-section constant temperature tube 9 and indicate: a third section of thermostatic tube after the blood is discharged from the device; the function of the temperature control device is to maintain the blood temperature of the section of blood circulation pipeline; the structure is shown in figure 12; the installation is shown as 9 in figures 1 and 2.

The two-section constant temperature tube 10 of the utility model refers to: a second section of thermostatic tube after the blood exits from the device; the function of the temperature control device is to maintain the blood temperature of the section of blood circulation pipeline; the structure is shown in figure 12; the installation is shown at 10 in figures 1 and 2.

Go out one section constant temperature tube 11 mean: a first section of thermostatic tubing after the blood exits the apparatus; the function of the temperature control device is to maintain the blood temperature of the section of blood circulation pipeline; the structure is shown in figure 12; the installation is shown as 11 in figures 1 and 2.

The outlet pipe equipment connecting pipe 12 of the utility model refers to: a medical hose connecting the blood outflow tube 7 with the device; the structure is shown in figure 23; the installation is shown as 12 in figures 1 and 2.

A blood admission pipe 1 fall into one section constant temperature tube 3, advance two-stage process constant temperature tube 4, advance three-stage process constant temperature tube 5 or blood outflow pipe 7 and fall into three-stage process constant temperature tube 9, go out two-stage process constant temperature tube 10, go out the purpose of one section constant temperature tube 11 and carry out real-time supervision and heat to the blood temperature outside the outflow human body for the convenience of the convenience to guarantee that its temperature remains unchanged basically.

Example 2:

in order to realize the constant temperature function, the inlet section constant temperature tube 3, the inlet section constant temperature tube 4, the inlet section constant temperature tube 5, the three section constant temperature tube 9, the outlet section constant temperature tube 10 and the outlet section constant temperature tube 11 of the utility model are all composed of a zero distance blood temperature detector 2-1, a water constant temperature device 13 and a blood sectional tube 14; the water constant temperature device 13 consists of a hollow water tank 13-1, a water inlet pipe 13-2, a water outlet and exhaust pipe 13-3, a water temperature heater 13-4 and a water temperature detection sensor 13-5; the outer circle of the hollow water tank 13-1 is provided with a water outlet pipe mounting hole 13-1-3, a heater path hole 13-1-4 and a water inlet pipe connecting hole 13-1-5, the middle of the side surface is transversely provided with a blood conveying pipe mounting hole 13-1-1, and the side of the blood conveying pipe mounting hole 13-1-1 is provided with a water temperature detector mounting hole 13-1-2; the interior of the hollow water tank 13-1 is provided with a constant temperature water tank hollow 13-1-6; the water temperature detector mounting hole 13-1-2, the water outlet pipe mounting hole 13-1-3, the heater path hole 13-1-4 and the water inlet pipe connecting hole 13-1-5 are communicated with the cavity 13-1-6 of the constant temperature water tank; the water temperature detection sensor 13-5 is arranged in the water temperature detector mounting hole 13-1-2 and is sealed by glue; the water inlet pipe 13-2 is arranged in the water inlet pipe connecting hole 13-1-5 and is sealed by glue; the water outlet exhaust pipe 13-3 is arranged in the water outlet pipe mounting hole 13-1-3 and is sealed by glue; the water temperature heater 13-4 is composed of a hollow heating ring 13-4-1 and a power line 13-4-2; the hollow heating ring 13-4-1 is sleeved on the periphery of the tube wall of the blood transfusion tube mounting hole 13-1-1, a power line 13-4-2 of the hollow heating ring is drawn out through the heater path hole 13-1-4, and the power line 13-4-2 and the heater path hole 13-1-4 are sealed; the blood transfusion tube mounting hole 13-1-1 on the water constant temperature device 13 is sleeved on the outer surface of the blood subsection tube 14.

The water constant temperature device 13 of the utility model is as follows: a thermostatic device on the first-section inlet thermostatic tube 3, the second-section inlet thermostatic tube 4, the third-section inlet thermostatic tube 5, the third-section outlet thermostatic tube 9, the second-section outlet thermostatic tube 10 and the first-section outlet thermostatic tube 11; the structure is shown in figure 15; the blood circulation tube is thermostated by water temperature, and the blood circulation tube has the advantages that the constant temperature of the water temperature on the blood circulation tube cannot directly cause surface damage to the blood circulation tube and plastic deformation of the blood circulation tube, the blood tube is generally made of plastic raw materials, a resistance wire layer adopted in the prior art is directly wound and wrapped on the outer surface of the blood tube, the resistance wire easily generates plastic deformation to a certain degree under the condition of temperature, blood is in zero-distance contact with the blood tube, the blood tube has certain influence on the blood quality under the condition of plasticizing, and hidden troubles which are difficult to perceive are easily buried under the condition of life safety of a patient; the installation is shown as 13 in figures 12 and 13.

The hollow water tank 13-1 of the utility model refers to: a water tank filled with water in the water thermostat 13; the structure is shown in figure 16, and the water-saving device is used for providing a carrier for water at constant temperature; the cross-sectional structure is shown in fig. 17.

The blood transfusion tube mounting hole 13-1-1 of the utility model refers to: the mounting hole is designed in the middle of the side surface of the hollow water tank 13-1 and is used for connecting and mounting the blood supply segmented pipe 14; the design position is shown in figure 16, and the schematic position of the design section is shown as 13-1-1 in figure 17.

The water temperature detector mounting hole 13-1-2 of the utility model refers to: the mounting hole is designed at the upper part of the side surface of the hollow water tank 13-1 and is used for connecting and mounting the water temperature detection sensor 13-5; the design position is shown in figure 16, and the schematic position of the design section is shown as 13-1-2 in figure 17.

The outlet pipe mounting hole 13-1-3 of the utility model refers to: the mounting hole is designed at the top of the hollow water tank 13-1 and is used for connecting and mounting the internal thread water outlet exhaust pipe 13-3; the design is shown as 13-1-3 in figure 16.

The path hole 13-1-4 of the heater of the utility model is as follows: the mounting hole is designed at the top of the hollow water tank 13-1 and is used for connecting and mounting the water temperature heater 13-4; the design is shown as 13-1-4 in figure 16.

The water inlet pipe connecting hole 13-1-5 of the utility model refers to: the mounting hole is designed at the top of the hollow water tank 13-1 and is used for connecting and mounting the water inlet pipe 13-2; the design is shown as 13-1-5 in figure 16.

The hollow 13-1-6 of the constant temperature water tank of the utility model refers to: the hollow water tank 13-1 is internally provided with a water containing space; the design is shown as 13-1-6 in figure 17.

The water inlet pipe 13-2 of the utility model refers to: a water inlet pipe on the water thermostat 13; the function is to inject water into the hollow water tank 13-1; the structure is shown in figure 21; the design is shown as 13-2 in figure 15.

The internal thread water outlet exhaust pipe 13-3 of the utility model refers to: a water outlet and exhaust pipe on the water constant temperature device 13; the water tank has the functions of draining water and exhausting air from the hollow water tank 13-1, wherein the purpose of draining water is to ensure that the water in the hollow water tank 13-1 is completely full, and the water can be completely filled by adding water into the water tank for the first time and exhausting air; if the water in the hollow water tank 13-1 is not full, the water is burnt by the water temperature heater 13-4, and safety accidents are caused; the design is shown as 13-3 in figure 15.

The water temperature heater 13-4 of the utility model refers to: a water temperature heater on the water thermostat 13, an electric heater for increasing the temperature of the supplied water, similar to a quick heater; the design position is shown as 13-4 in FIG. 15, and the installation position is shown as FIG. 17; the structure is shown in figure 19.

The hollow heating ring 13-4-1 of the utility model refers to: a heating ring on the water temperature heater 13-4; the design is shown as 13-4-1 in FIG. 19.

The power line 13-4-2 of the utility model refers to: a power cord of the water temperature heater 13-4; the design is shown as 13-4-2 in figure 19.

The water temperature detecting sensor 13-5 of the utility model refers to: a water temperature detection sensor on the water thermostat 13; the function is to detect the water temperature in the water constant temperature device 13 in real time; the structure is shown in figure 18; the mounting position is shown as 13-5 in fig. 15.

The blood sectional tube 14 of the utility model refers to: a medical grade plastic tube; medical connecting hoses on the inlet section of constant temperature pipe 3, the inlet section of constant temperature pipe 4, the inlet section of constant temperature pipe 5, the outlet section of constant temperature pipe 9, the outlet section of constant temperature pipe 10 and the outlet section of constant temperature pipe 11; a blood flow passage tube; the structure is shown in figure 14; the installation is shown at 14 in figures 12 and 13.

Example 3:

The utility model discloses a inlet tube lead screw end cap 13-3-1 indicate: a screw rod, a plug which can be flexibly screwed on the top of the water outlet exhaust pipe 13-3; the function is to open and close the internal thread water outlet exhaust pipe 13-3; the structure is shown in figure 23; the installation is shown as 13-3-1 in figure 15.

Claims

1. A sectional water constant temperature blood inlet and outlet pipe of a continuous blood purification therapeutic apparatus is characterized in that the sectional water constant temperature blood inlet and outlet pipe consists of a blood inlet pipe (1) and a blood outlet pipe (7); the blood inlet pipe (1) consists of a blood temperature detection pipe (2) at the needle insertion head, a first-section constant temperature pipe (3), a second-section constant temperature pipe (4), a third-section constant temperature pipe (5) and an equipment connecting pipe (6); the needle inserting head blood temperature detecting tube (2) is connected with an equipment connecting tube (6) through a first-section constant temperature tube (3), a second-section constant temperature tube (4) and a third-section constant temperature tube (5); the blood outflow tube (7) consists of a needle outlet head temperature detection tube (8), an outlet three-section constant temperature tube (9), an outlet two-section constant temperature tube (10), an outlet one-section constant temperature tube (11) and an outflow tube equipment connecting tube (12); the needle outlet head temperature detection tube (8) is connected with the outflow tube equipment connecting tube (12) through an outflow three-section constant temperature tube (9), an outflow two-section constant temperature tube (10) and an outflow one-section constant temperature tube (11); the needle inserting head blood temperature detecting tube (2) and the needle head temperature detecting tube (8) are both composed of a zero-distance blood temperature detector (2-1) and a needle inserting head connecting tube (2-2); the zero-distance blood temperature detector (2-1) consists of a temperature detection connecting seat (2-1-1), a U-shaped hollow detection needle (2-1-2) and a temperature sensor (2-1-3); the temperature detection connecting seat (2-1-1) is provided with a U-shaped detection needle mounting through hole (2-1-1-1), a needle inserting head pipe connecting hole (2-1-1-2) and a subsection pipe connecting hole (2-1-1-3), and a detection hollow section (2-1-1-4) is arranged in the middle part; the U-shaped probe mounting through hole (2-1-1-1), the probe head pipe connecting hole (2-1-1-2) and the subsection pipe connecting hole (2-1-1-3) are communicated with a probe hollow section (2-1-1-4) arranged in the middle; the left end of the needle inlet connecting pipe (2-2) is arranged in the needle inlet pipe connecting hole (2-1-1-2) and is sealed by glue; the U-shaped hollow probe (2-1-2) is arranged in the U-shaped probe mounting through hole (2-1-1-1) and is sealed by glue; the temperature sensor (2-1-3) is arranged in the U-shaped hollow probe (2-1-2).

2. The sectional water constant-temperature blood inlet and outlet pipe of the continuous blood purification therapeutic apparatus according to claim 1, wherein the inlet section constant-temperature pipe (3), the inlet section constant-temperature pipe (4), the inlet section constant-temperature pipe (5), the outlet section constant-temperature pipe (9), the outlet section constant-temperature pipe (10) and the outlet section constant-temperature pipe (11) are all composed of a zero-distance blood temperature detector (2-1), a water constant-temperature device (13) and a blood sectional pipe (14); the water constant temperature device (13) consists of a hollow water tank (13-1), a water inlet pipe (13-2), a water outlet and exhaust pipe (13-3), a water temperature heater (13-4) and a water temperature detection sensor (13-5); a water outlet pipe mounting hole (13-1-3), a heater path hole (13-1-4) and a water inlet pipe connecting hole (13-1-5) are formed in the excircle of the hollow water tank (13-1), a blood conveying pipe mounting hole (13-1-1) is transversely formed in the middle of the side face, and a water temperature detector mounting hole (13-1-2) is formed beside the blood conveying pipe mounting hole (13-1-1); the interior of the hollow water tank (13-1) is provided with a constant temperature water tank hollow part (13-1-6); the water temperature detector mounting hole (13-1-2), the water outlet pipe mounting hole (13-1-3), the heater path hole (13-1-4) and the water inlet pipe connecting hole (13-1-5) are all communicated with the hollow part (13-1-6) of the constant temperature water tank; the water temperature detection sensor (13-5) is arranged in the water temperature detector mounting hole (13-1-2) and is sealed by glue; the water inlet pipe (13-2) is arranged in the water inlet pipe connecting hole (13-1-5) and is sealed by glue; the water outlet exhaust pipe (13-3) is arranged in the water outlet pipe mounting hole (13-1-3) and is sealed by glue; the water temperature heater (13-4) is composed of a hollow heating ring (13-4-1) and a power line (13-4-2); the hollow heating ring (13-4-1) is sleeved on the periphery of the tube wall of the blood transfusion tube mounting hole (13-1-1), a power line (13-4-2) of the hollow heating ring is drawn out through the heater path hole (13-1-4), and the power line (13-4-2) and the heater path hole (13-1-4) are sealed; the blood transfusion tube mounting hole (13-1-1) on the water constant temperature device (13) is sleeved on the outer surface of the blood subsection tube (14).

3. The sectional water constant temperature blood inlet and outlet pipe of continuous blood purification therapeutic instrument according to claim 2, wherein the inner threaded water outlet exhaust pipe (13-3) is provided with a water inlet pipe screw plug (13-3-1), and the water inlet pipe screw plug (13-3-1) is flexibly screwed in the end of the inner threaded water outlet exhaust pipe (13-3).