CN110812577A

CN110812577A - Novel automatic intravenous injection instrument

Info

Publication number: CN110812577A
Application number: CN201911101300.8A
Authority: CN
Inventors: 甘金强; 许皓; 梅震; 昌诗宇; 张俊仓; 赵腾
Original assignee: China University of Geosciences
Current assignee: China University of Geosciences
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-02-21

Abstract

The invention discloses a novel automatic intravenous injection instrument, which comprises: a housing; the tightening assembly is connected below the shell, and an arm and a hand back are sleeved on the tightening assembly and tightened on the arm; a pretreatment assembly disposed within the housing for epidermal disinfection and vessel scanning; the injection assembly is arranged in the shell, and the position of the injection assembly is adjusted by adopting a four-degree-of-freedom platform, so that the injection assembly can be accurately punctured into a blood vessel on the back of a hand; the hemostasis assembly is connected to the top in the shell, and the hemostasis assembly and the pretreatment assembly are arranged on the same side of the injection assembly and used for hemostasis of blood vessels after the puncture is completed. The intravenous injection instrument avoids the limitation of manual operation technology, and has the beneficial effect of improving the convenience of injection.

Description

Novel automatic intravenous injection instrument

Technical Field

The invention relates to the field of precision instruments and equipment. More particularly, the present invention relates to a novel automatic intravenous injection apparatus.

Background

The existing intravenous injection is basically completed manually, and the whole intravenous injection process is not completed automatically by a machine. Most of the existing artificial intravenous injection parts are on the back of the hand, and the main process is as follows: sucking the medicinal liquid with a syringe, exhausting air, and sleeving an ampoule; selecting proper veins, detecting the direction and depth of the veins with fingers, placing a treatment towel or paper towel under the limbs of the puncture part, fastening a tourniquet above the puncture part (near the heart end) at a position of about 6cm, disinfecting the skin with 2% iodine tincture, removing iodine with 70% alcohol after drying, and ordering the patient to hold a fist to fill the veins; when in puncture, the skin at the lower end of the vein is tightened by the thumb of the left hand to be fixed, the injector is held by the right hand, the inclined plane of the needle head is upward, the needle head and the skin form an angle of 35 degrees, the needle head penetrates into the skin from the upper part or the side part of the vein, and then the needle penetrates along the vein direction in a diving way; after blood return, the needle head is proved to enter the vein, a little needle can be inserted along the vein, the tourniquet is loosened, the patient is ordered to loose a fist, the needle head is fixed, and the liquid medicine is slowly injected; after injection, pressing the puncture point with a sterilized cotton swab, quickly pulling out the needle head, and ordering the patient to bend the elbow and press for a moment; cleaning the articles. Due to the limitation of manual operation techniques, intravenous injection can only be performed in specific environments such as hospitals, and the like, and convenience is lacked.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

The invention also aims to provide a novel automatic intravenous injection instrument, wherein a tightening component is sleeved on an arm and a back of a hand and tightened on the arm, so that venous blood vessels on the back of the hand are easy to find, a pretreatment component scans and disinfects blood vessels, after the blood vessels are scanned, the injection component adopts a four-degree-of-freedom platform to adjust the position of the injection component, so that the injection component is accurately inserted into the blood vessels on the back of the hand, and after the injection is finished, the injection component is pulled out and hemostasis is performed by a hemostasis component. The intravenous injection instrument avoids the limitation of manual operation technology and improves the convenience of injection.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a novel automatic intravenous injection apparatus including:

the LED display screen comprises a shell, a display screen and a control unit, wherein the shell is provided with a CPU and an LED screen, and the LED screen is connected with the CPU;

the tightening assembly is connected below the shell, and an arm and a hand back are sleeved on the tightening assembly and tightened on the arm;

a pretreatment assembly disposed within the housing for epidermal disinfection and vessel scanning;

the injection assembly is arranged in the shell, and the position of the injection assembly is adjusted by adopting a four-degree-of-freedom platform, so that the injection assembly can be accurately punctured into a blood vessel on the back of a hand;

the hemostasis assembly is connected to the top in the shell, and the hemostasis assembly and the pretreatment assembly are arranged on the same side of the injection assembly and used for hemostasis of blood vessels after the puncture is finished;

the hemostasis assembly, the injection assembly, the pretreatment assembly and the tightening assembly are respectively connected with the CPU through wires, and a power supply inside the shell provides electric energy for the hemostasis assembly, the injection assembly, the pretreatment assembly, the tightening assembly, the CPU and the LED screen.

Preferably, the tight subassembly of cover includes the straining ring and connects the armlet on the straining ring, the armlet deviates from one side of straining ring is equipped with side mouth and fore-edge, the side mouth supplies the thumb to pass, the fore-edge supplies all the other four fingers to pass, and the circular telegram back lights according to the LED screen and indicates, the contracting of straining ring extrudes the arm, restraines the blood backward flow in the blood vessel.

Preferably, the pretreatment subassembly includes ultrasonic scanning mechanism and disinfection mechanism, ultrasonic scanning mechanism descends to laminating back of the hand, and the round trip movement scans the blood vessel, transmits scanning information to the high in the clouds backstage, calculates the route of inserting the needle, disinfection mechanism cleans the disinfection to the position of inserting the needle.

Preferably, ultrasonic scanning mechanism sets up upper portion in the casing, ultrasonic scanning mechanism includes first cross post and probe, first cross post slides and sets up on a pair of horizontal pole at top in the casing, first cross post drives according to the instruction the probe is flexible from top to bottom, accomplishes the vascular image and obtains, the probe is the software capsule material.

Preferably, the disinfection mechanism is arranged at the lower part in the shell and comprises a pair of sliding pairs and a cotton swab of which two ends are respectively fixed on the pair of sliding pairs, the pair of sliding pairs are fixed in the shell in parallel, and the pair of sliding pairs drive the cotton swab to wipe the needle insertion part according to instructions.

Preferably, the injection assembly comprises a sliding guide rail arranged in the shell, a needle cylinder clamped in the sliding guide rail, a push head arranged at the rear end part of the needle cylinder, a clamping piece for clamping the needle cylinder, and a needle fixing part fixed on the four-degree-of-freedom platform.

Preferably, the four-degree-of-freedom platform is arranged at the inner bottom of the housing, and includes a pair of first guide rails fixed at the bottom of the housing, a first platform sliding along the arrangement direction of the pair of first guide rails, a pair of second guide rails arranged inside the first platform and perpendicular to the pair of first guide rails, a second platform sliding along the arrangement direction of the pair of second guide rails, a third guide rail arranged on the second platform, and a flexible positioning platform arranged on the third guide rail, where the third guide rail is a saw-toothed guide rail, and the flexible positioning platform is engaged with the third guide rail.

Preferably, the flexible positioning platform comprises a fixed platform, a compliant mechanism and a movable platform, the fixed platform is connected with the third guide rail, the movable platform is nested in the fixed platform, and the fixed platform is connected with the movable platform through the compliant mechanism.

Preferably, the needle fixing part comprises a third platform clamped into the movable platform and a fixing rod connected with the needle fixing part on the third platform, and a groove is formed in the fixing rod for the needle to penetrate through and limit the needle.

Preferably, the hemostasis mechanism comprises a second cross column and a hemostasis pressure head, the second cross column is fixed on the pair of cross rods in a sliding mode, and the second cross column telescopically controls the hemostasis pressure head to extend downwards to achieve hemostasis according to instructions.

The invention at least comprises the following beneficial effects: the intelligent intravenous injection instrument designed by the invention provides complete functions of identification and positioning and automatic needle insertion and infusion, does not need manual operation basically, relieves the limitation that the prior art can only be used for medical infusion treatment in hospitals, and can carry out infusion treatment by preparing related liquid medicines at home, companies and the like. On one hand, for the common cold and fever patients, only a small hospital needs to be prepared, the treatment liquid medicine can be prepared, and the infusion treatment can be carried out on the spot or home, so that the queuing and registration of a large hospital are avoided, and the time and labor are wasted to influence the disease treatment. For the patient who needs to be hospitalized, the patient can choose to go home to receive the infusion treatment after the liquid medicine is prepared, so that great convenience is provided while a large amount of hospitalization cost is avoided. On the other hand, the patient crowding degree can be relieved for the large hospital or the primary hospital, the workload of a clinician is greatly reduced, and the labor cost is saved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of an intravenous injection apparatus according to one embodiment of the present invention;

FIG. 2 is a schematic top view of an intravenous injection apparatus according to one embodiment of the present invention;

FIG. 3 is a schematic diagram of an internal top view of an intravenous injection apparatus according to one embodiment of the present invention;

FIG. 4 is a schematic view of a disinfection structure of a disinfection mechanism according to one embodiment of the present invention;

FIG. 5 is a schematic view of a scanning structure of an ultrasonic scanning mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of the arrangement of the ultrasonic scanning mechanism and the hemostatic assembly according to one embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an ultrasonic scanning mechanism according to one embodiment of the present invention;

FIG. 8 is a schematic view of a sterilization mechanism according to one embodiment of the present invention;

FIG. 9 is a schematic top view of a sterilizing mechanism according to one embodiment of the present invention;

FIG. 10 is a schematic view of an injection assembly according to one embodiment of the present invention;

FIG. 11 is a schematic view of a needle mounting arrangement according to one embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a four-DOF platform according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a large-stroke moving mechanism according to one embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a flexible positioning platform according to one embodiment of the present invention;

FIG. 15 is a schematic structural view of a needle fixing portion according to one embodiment of the present invention;

fig. 16 is a schematic structural view of a fixing rod according to one embodiment of the present invention;

FIG. 17 is a schematic view of a hemostatic assembly according to one embodiment of the present invention;

fig. 18 is a schematic structural diagram of an opening housing of an intravenous injection apparatus according to one embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

In the description of the present invention, the terms "upper", "lower", "front", "rear", "same side", "vertical", "parallel", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 18, the present invention provides a novel automatic intravenous injection apparatus, including:

the casing 1, it is provided with CPU and LED screen 101, LED screen 101 is connected CPU, casing 1 are used for holding cover tight subassembly 2, preceding processing subassembly 3, injection subassembly 4, hemostasis subassembly 6 injection subassembly 4 preceding processing subassembly 3 cover tight subassembly 2 respectively with CPU connection of electric lines, 1 internal power source of casing does hemostasis subassembly 6 injection subassembly 4 preceding processing subassembly 3 cover tight subassembly 2 CPU the LED screen provides the electric energy.

The tightening component 2 is connected below the shell 1, and the tightening component 2 is sleeved on the arm and the hand back and tightened on the arm to enable the components in the shell 1 to be attached to the hand back;

the tight subassembly 2 of cover includes the tight ring 201 and connects the armlet on the tight ring 201, the armlet deviates from one side of tight ring 201 is equipped with side mouth 202 and fore-stock 203, side mouth 202 supplies the thumb to pass, fore-stock 203 supplies all the other four fingers to pass, and the instruction is lighted according to LED screen 101 after the circular telegram, the tight ring 201 shrink extrusion arm inhibits the blood backward flow in the blood vessel.

A pretreatment assembly 3 disposed within the housing 1 for epidermal disinfection and vessel scanning;

the pretreatment component 3 comprises an ultrasonic scanning mechanism 32 and a disinfection mechanism 31, the ultrasonic scanning mechanism 32 descends to be attached to the back of the hand, the blood vessel is scanned by moving back and forth, scanning information is transmitted to a cloud background, a needle inserting path is calculated, and the disinfection mechanism 31 wipes and disinfects the needle inserting part;

the disinfection mechanism 31 is arranged at the lower part in the shell 1, the disinfection mechanism 31 comprises a pair of sliding pairs 311 and a cotton swab 312, two ends of the cotton swab 312 are respectively fixed on the pair of sliding pairs 311, the pair of sliding pairs 311 are fixed in the shell 1 in parallel, the pair of sliding pairs 311 drive the cotton swab 312 to wipe a needle insertion part according to an instruction, and the cotton swab 312 is positioned at the inner bottom of the shell 1;

ultrasonic scanning mechanism 32 sets up upper portion in the casing 1, ultrasonic scanning mechanism 32 includes first cross post 321 and probe 322, first cross post 321 slides and sets up on a pair of horizontal pole 102 at top in the casing 1, first cross post 321 drives according to the instruction probe 322 is flexible from top to bottom, accomplishes the vascular image and obtains, probe 322 is the software capsule material, and first cross post 321 is the intersection structure of two poles, and the flexible function of first cross post 321 is realized by the relative position that changes its upper end to the flexible of first cross post 321.

The injection assembly 4 is arranged in the shell 1, and the position of the injection assembly 4 is adjusted by adopting a four-degree-of-freedom platform 5, so that the injection assembly 4 can be accurately inserted into the blood vessel on the back of the hand of a hand;

the injection assembly 4 comprises a sliding guide rail 401 arranged in the housing 1, a syringe 404 clamped in the sliding guide rail 401, a push head 402 arranged at the rear end part of the syringe 404, a clamping piece 403 for clamping the front part of the syringe 404, and a needle fixing part 405 fixed on the four-degree-of-freedom platform 5; the push head 402 moves along the sliding guide rail 401, and pushes out the liquid in the syringe 404 by the push head 402 to inject the liquid into the blood vessel;

the four-degree-of-freedom platform 5 is arranged at the inner bottom of the housing 1, the four-degree-of-freedom platform 5 comprises a pair of first guide rails 501 fixed at the bottom of the housing 1, a first platform 502 sliding along the arrangement direction of the pair of first guide rails 501, a pair of second guide rails 503 arranged in the first platform 502 and perpendicular to the pair of first guide rails 501, a second platform 504 sliding along the arrangement direction of the pair of second guide rails 503, a third guide rail 505 arranged on the second platform 504, and a flexible positioning platform 506 arranged on the third guide rail 505, the third guide rail 505 is a saw-toothed guide rail, the flexible positioning platform 506 is engaged with the third guide rail 505, the first platform 502 slides along the pair of first guide rails 501, the second platform 504 slides along the direction of the second guide rail 503 perpendicular to the first guide rails 501, and the flexible positioning platform 506 slides along the arrangement direction of the third guide rail 505, a pair of first guide rails 501, a first platform 502, a pair of second guide rails 503, a second platform 504 and a third guide rail 505 constitute a large stroke moving mechanism, as shown in fig. 13;

the flexible positioning platform 506 comprises a fixed platform 5061, a compliant mechanism 5062 and a movable platform 5063, the fixed platform 5061 is connected with the third guide rail 505, the movable platform 5063 is nested in the fixed platform 5061, the fixed platform 5061 is connected with the movable platform 5063 through the compliant mechanism 5062, and the compliant mechanism 5062 adjusts the position of the movable platform 5063;

the needle fixing part 405 comprises a third platform 4051 clamped into the movable platform 5063 and a fixing rod 4052 connected to the third platform 4051 for fixing the needle, wherein a groove is formed in the fixing rod 4052 for the needle to pass through and limit; after the injection is started, the needle head is connected with the syringe 404 through the infusion tube, the infusion tube passes through one side of the shell 1 close to the four-degree-of-freedom platform 5, and the needle head is fixed on the needle fixing part 405 on the four-degree-of-freedom platform 5.

A hemostatic assembly 6 connected to the top of the housing 1, wherein the hemostatic assembly 6 and the pretreatment assembly 3 are arranged on the same side of the injection assembly 4;

the hemostatic assembly 6 comprises a second cross column 601 and a hemostatic pressure head 602, wherein the second cross column 601 is slidably fixed on the pair of cross rods 102, and the second cross column 601 telescopically controls the hemostatic pressure head 602 to extend downwards for hemostasis according to instructions.

In the technical scheme, the arm and the back of the hand are sleeved with the tightly sleeved component 2 and tightened on the arm, so that the vein vessel is easy to find, the pretreatment component 3 scans the vessel and disinfects the vessel, after the vessel scanning is completed, the injection component 4 adopts the four-degree-of-freedom platform 5 to adjust the position of the injection component 4, so that the injection component 4 is accurately inserted into the vessel of the arm, and after the injection is completed, the injection component 4 is pulled out and hemostasis is performed by the hemostasis component 6. The novel automatic intravenous injection instrument avoids the limitation of manual operation technology and improves the convenience of injection.

The specific steps are as follows:

1. wearing instrument

In fig. 1, the tightening assembly 2 is a tightening assembly 2, the tightening assembly 2 is a stretchable fabric, arms and backs of hands of different people can be well attached to each other, a good fixing effect is achieved, the arms extend into the tightening assembly 2, the thumb extends out from the side opening 202, and the rest four fingers extend out from the front opening 203 in a manner similar to a glove wearing manner.

2. Tighten the arm

After the device is worn, the invisible switch in fig. 2 is pressed for 3 seconds, the intravenous injection device is started, the LED screen 101 is lightened, and the arm is fastened according to the prompt. The tightening ring 201 has the function of contracting after being electrified, and before infusion, the tightening ring 201 is electrified and tightened to achieve the effect of inhibiting blood backflow in the blood vessel.

3. Epidermal disinfection

The skin is sterilized by the sterilizing mechanism 31, and the sliding pair 311 shown in fig. 4 slides back and forth on the back of the hand with the cotton swab 312 with sterilizing liquid in between, so as to sterilize the skin of the intravenous injection site.

4. Ultrasonic scanning of blood vessels

After the epidermis is disinfected, the blood vessels are selected to be scanned, the ultrasonic probe 322 in fig. 5 descends to be attached to the back of the hand, the blood vessels are scanned by moving back and forth, scanning information is transmitted to the cloud background, tomographic image information of the tissue of the back of the hand scanning part is obtained through processing, the tomographic image information comprises the position of the blood vessels, the thickness of the blood vessels and the information of the blood flow area, and finally the needle insertion path is calculated and generated.

5. Mounting transfusion needle

After the blood vessel scanning operation is finished, the exhaust operation of the infusion tube is manually finished while the scanning result is analyzed and calculated in the background. As shown in FIG. 11, the front panel of the housing 1 is flicked, and the infusion tube is fixed at a predetermined position to a clamp for controlling the flow rate, and the infusion needle is fixed to the internal needle fixing part 405.

6. Start of infusion

After the fixation of the infusion needle is completed, the infusion can be started. Pressing the start button on the LED screen 101 starts the automatic infusion operation. The power supply provides power to drive the four-freedom platform 5 to move, the position is adjusted, and after the position is well positioned, the needle insertion operation is started. After successful completion of needle insertion, infusion begins until completion.

7. Pressing for stopping bleeding by pulling out needle

As shown in fig. 17, after the infusion is finished, the hemostatic press head 602 descends while pulling out the needle, lightly presses the back of the hand to perform the injection, then the four corners of the hemostatic press head 602 move downward, and the tourniquet is attached to complete the infusion.

The interaction between the instrument and the patient is completed on an LED interactive screen, and comprises information prompt, operation selection and the like.

As shown in figure 18, the IV apparatus can be flipped open on one side of the housing 1 for changing the epidermal disinfectant swab 312 for inspection and cleaning of the lumen.

The circuit connection relationship among all parts controlled by the CPU is parallel connection, all parts are hung on a control bus according to the standard, enter the system and work under the unified control of the CPU. The ultrasonic probe 322 and other sensors transmit signals to the CPU through a data bus, the CPU processes the data, and transmits execution signals to the tightening assembly 2, the pretreatment assembly 3, the injection assembly 4, the hemostasis assembly 6 and other components through a control bus to execute corresponding operations.

The invention has the following advantages:

1. convenience and convenience

The intelligent intravenous injection instrument designed by the invention provides complete functions of identification and positioning and automatic needle insertion and infusion, does not need manual operation basically, relieves the limitation that the prior art can only be used for medical infusion treatment in hospitals, and can carry out infusion treatment by preparing related liquid medicines at home, companies and the like. On one hand, for the common cold and fever patients, only a small hospital needs to be prepared, the treatment liquid medicine can be prepared, and the infusion treatment can be carried out on the spot or home, so that the queuing and registration of a large hospital are avoided, and the time and labor are wasted to influence the disease treatment. For the patient who needs to be hospitalized, the patient can choose to go home to receive the infusion treatment after the liquid medicine is prepared, so that great convenience is provided while a large amount of hospitalization cost is avoided. On the other hand, the patient crowding degree can be relieved for the large hospital or the primary hospital, the workload of a clinician is greatly reduced, and the labor cost is saved.

2. Safety and sanitation

The invention provides a relatively sealed space, which provides a safe and sanitary environment for intravenous infusion; in addition, the inside of the product is also provided with an ultraviolet searchlight, and the inner space of the instrument is sterilized by ultraviolet rays before each use. The whole using process of the product is basically completed automatically, the prior manual infusion operation is completely replaced, and therefore the phenomenon that the patient brings redundant pain, adverse reaction and the like due to possible errors in the manual operation process is eliminated.

3. Automation

Besides the intellectualization and automation of the infusion process, the infusion device is also provided with an LED screen to realize the interaction between the instrument and people; the instrument can show the interesting picture, disperses the attention of the patient, relieves the pain experience caused by needle insertion and puncture, and can also give play to boring infusion time, thereby providing a good and pleasant intelligent experience for the patient in the infusion process. In addition, the product is provided with an emergency stop button, and if an accident happens, the instrument can be stopped emergently and the needle is withdrawn and a disinfection belt is attached. In addition, a liquid flow rate control key is arranged to display the current flow rate in real time and adjust in time to prevent the patient from generating adverse reaction.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. Novel automatic intravenous route instrument, its characterized in that includes:

the LED display device comprises a shell (1) provided with a CPU and an LED screen (101), wherein the LED screen (101) is connected with the CPU;

the tightening component (2) is connected to the lower part of the shell (1), and the tightening component (2) is sleeved on the arm and the back of the hand and can be tightened on the arm;

a pretreatment assembly (3) arranged in the shell (1) and used for disinfecting the epidermis of the back of the hand and scanning blood vessels;

the injection assembly (4) is arranged in the shell (1), and the position of the injection assembly (4) is adjusted by adopting a four-degree-of-freedom platform (5) so that the injection assembly (4) can be accurately punctured into a blood vessel on the back of a hand;

the hemostasis assembly (6) is connected to the inner top of the shell (1), and the hemostasis assembly (6) and the pretreatment assembly (3) are arranged on the same side of the injection assembly (4) and used for hemostasis of blood vessels after the puncture is finished;

the hemostatic assembly (6), the injection assembly (4), the pretreatment assembly (3) and the tightening assembly (2) are respectively connected with the CPU through wires, and an internal power supply of the shell (1) is used for providing electric energy for the hemostatic assembly (6), the injection assembly (4), the pretreatment assembly (3), the tightening assembly (2), the CPU and the LED screen (101).

2. The automatic intravenous injection apparatus of claim 1, wherein the tightening assembly (2) comprises a tightening ring (201) and a arm connected to the tightening ring (201), a side opening (202) and a front opening (203) are provided on a side of the arm facing away from the tightening ring (201), the side opening (202) is used for the thumb to pass through, the front opening (203) is used for the other four fingers to pass through, and after the power is on, according to the indication of the LED screen (101), the tightening ring (201) contracts to squeeze the arm, so as to inhibit the backflow of blood in the blood vessel.

3. The automatic intravenous injection apparatus of claim 1, wherein the pretreatment module (3) comprises an ultrasonic scanning mechanism (32) and a disinfection mechanism (31), the ultrasonic scanning mechanism (32) descends to fit the back of the hand, moves back and forth to scan the blood vessel, transmits the scanning information to a cloud background, calculates the needle insertion path, and the disinfection mechanism (31) cleans and disinfects the needle insertion part.

4. The automatic intravenous injection apparatus according to claim 3, wherein the ultrasonic scanning mechanism (32) is disposed at an upper portion of the inside of the housing (1), the ultrasonic scanning mechanism (32) comprises a first cross pillar (321) and a probe (322), the first cross pillar (321) is slidably disposed on a pair of cross bars (102) at the top of the inside of the housing (1), the first cross pillar (321) drives the probe (322) to extend and retract up and down according to a command to complete the acquisition of the blood vessel image, and the probe (322) is made of a soft capsule material.

5. The automatic intravenous injection apparatus according to claim 3, wherein said sterilizing mechanism (31) is disposed at the lower portion of the inside of said housing (1), said sterilizing mechanism (31) comprises a pair of sliding pairs (311) and a cotton swab (312) with both ends fixed on said pair of sliding pairs (311), said pair of sliding pairs (311) are fixed in parallel inside said housing (1), and said pair of sliding pairs (311) drives said cotton swab (312) to wipe the needle insertion portion according to the command.

6. The automatic iv injection apparatus according to claim 1, wherein the injection unit (4) comprises a slide rail (401) disposed in the housing (1), a syringe (404) engaged in the slide rail (401), a pusher (402) installed at a rear end of the syringe (404), a holder (403) for holding the syringe (404), and a needle fixing unit (405) fixed to the four-degree-of-freedom platform (5).

7. The new automatic Intravenous (IV) apparatus of claim 1 wherein said four degree of freedom platform (5) is disposed at the inner bottom of said housing (1), the four-degree-of-freedom platform (5) comprises a pair of first guide rails (501) fixed at the bottom of the shell (1), a first platform (502) sliding along the arrangement direction of the pair of first guide rails (501), a pair of second guide rails (503) arranged in the first platform (502) and vertical to the pair of first guide rails (501), a second platform (504) sliding along the arrangement direction of the pair of second guide rails (503), a third guide rail (505) arranged on the second platform (504), and a flexible positioning platform (506) arranged on the third guide rail (505), the third guide rail (505) is a sawtooth-shaped guide rail, and the flexible positioning platform (506) is in meshed connection with the third guide rail (505).

8. The new automatic intravenous (tv) apparatus of claim 7 wherein said flexible positioning platform (506) comprises a fixed platform (5061), a compliant mechanism (5062), a moving platform (5063), said fixed platform (5061) coupled to said third rail (505), said moving platform (5063) nested within said fixed platform (5061), said fixed platform (5061) coupled to said moving platform (5063) via a compliant mechanism (5062).

9. The automatic iv set forth in claim 6 wherein the needle fixing part (405) comprises a third platform (4051) engaged with the movable platform (5063), and a fixing rod (4052) connected to the third platform (4051) for fixing the needle, wherein the fixing rod (4052) has a groove for the needle to pass through and limit.

10. A new automatic Intravenous (IV) administration apparatus as claimed in claim 4, characterized in that said hemostatic assembly (6) comprises a second cross-post (601) and a hemostatic pressure head (602), said second cross-post (601) being slidably fixed to a pair of cross-bars (102), said second cross-post (601) being telescopically controlled on command to extend the hemostatic pressure head (602) downwards to stop bleeding.