CN113133816A

CN113133816A - Anesthesia injection device

Info

Publication number: CN113133816A
Application number: CN202110488266.5A
Authority: CN
Inventors: 不公告发明人
Original assignee: Yang Bingqiang
Current assignee: Yang Bingqiang
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-07-20
Also published as: CN111529006B; CN111529006A; CN113133817A

Abstract

The anesthesia injection device comprises a puncture needle (100), a pore plate (200), a connecting plate (300) and a needle inserting module (400), wherein the needle inserting module is arranged on the connecting plate (300), and guides the puncture needle (100) to be inserted in a way of facing a first through hole (201) of the pore plate (200) by a first guide cylinder (401). According to the invention, the needle inserting direction of the puncture needle (100) guided on the needle inserting module (400) is adjusted by fixing the clamping pin between the connecting plate (300) and the supporting frame (301), and the puncture needle (100) is guided and supported, so that the problems of local infection, injury deepening, pain increase of patients and the like caused by shaking or over-slow manual operation in the needle inserting process are avoided, therefore, the needle inserting quality of the puncture needle (100) can be ensured, the needle inserting difficulty is simplified, the operation quality of a user is improved, and the pain of the user is reduced.

Description

Anesthesia injection device

The patent application of the invention is divisional application. The patent number of the original case is 202010432620.8, the application date is 2020, 5 and 20, and the invention name is an anesthetic injection device.

Technical Field

The present invention relates to a medical device, in particular to an injection device for anaesthesia.

Background

The most common surgical procedure in anesthetic injection is epidural anesthesia.

Epidural anesthesia refers to epidural space block anesthesia, i.e., local anesthetic is injected into the epidural space to block spinal nerve root and temporarily paralyze the innervated area, which is called epidural space block anesthesia, or epidural space block for short. Depending on the mode of administration, a single-dose method and a continuous method can be classified. The puncture position can be divided into high position, middle position, low position and sacral canal block.

The epidural puncture technique comprises a No. 17 epidural puncture needle, an epidural catheter, a non-resistance injector and a common injector,

the epidural puncture technology comprises the following steps:

1. the epidural puncture technique is mainly to disinfect the puncture point by 15 cm;

2. paving a hole towel or a sterile sheet;

3. median approach or lateral median approach: wherein the medial approach and the lateral medial approach are to rub and infiltrate the intracutaneous, subcutaneous and interspinous ligaments at the puncture point with 1% lidocaine;

4. wherein the central access utilizes a puncture needle to vertically insert the needle at a puncture point, the inclined plane of the needle head is parallel to the trend of the ligamentum flavum, when the ligamentum flavum is punctured, the resistance is increased, and the puncture is stopped; wherein the medial access: puncturing 1-1.5 cm beside the puncture point by using a No. 17 dural puncture needle to avoid supraspinal ligaments and interspinous ligaments and directly reach the ligamentum flavum;

5. taking down the needle core, connecting the tail end of the puncture needle with a non-resistance injector, and when the non-resistance injector is pushed, having a rebound feeling;

6. rotating the inclined plane of the needle head to be unparallel to the ligamentum flavum, preferably nearly vertical or continuously rotating to reduce the resistance of needle insertion, placing a drop of liquid such as purified water at the needle tail, and continuously puncturing the dural puncture needle until the puncture needle passes through the ligamentum flavum, the water at the needle tail is sucked in, and meanwhile, the patient has a certain falling feeling;

7. connecting the tail of the puncture needle with a non-resistance injector, and finding that the non-resistance injector is pushed without resistance;

8. placing a pipe: when the puncture needle enters the epidural space, inserting a catheter into the puncture needle to reach 3-4 cm in the epidural space;

9. withdrawing the needle and keeping the catheter in the epidural space, thereby facilitating the injection of anesthetic through the catheter at any time.

10. And (4) fixing the catheter.

The steps are troublesome, and the pure manual operation is easy to occur: the problems of tissue tearing, puncture needle breakage caused by hand shaking, local infection caused by slow hand operation, deepened injury degree, increased pain of patients and the like can also be caused. Therefore, there is a need for an anesthetic injection device that simplifies the above manual operations and improves the quality of the surgical operations to reduce the pain of the patient.

Disclosure of Invention

The invention aims to solve the technical problem of providing an anesthetic injection device which can simplify the operation difficulty of manual operation and improve the operation quality so as to reduce the pain of a patient.

The anesthetic injection device of the invention comprises

A puncture needle in which a catheter or a needle core can be arranged;

the middle of the pore plate is provided with a first through hole, the puncture needle is opposite to the first through hole and is fixed at the position of a patient needing to be inserted by a fixing band;

one end of the connecting plate is hinged with the pore plate, the other end of the connecting plate is hinged with the support frame, and the connecting plate and the support frame are fixed through a bayonet lock to adjust the bending angle and the needle inserting angle of the connecting plate;

and the needle inserting module is configured on the connecting plate and guides the puncture needle to be inserted in a way of facing the first through hole of the pore plate by using the first guide cylinder.

The anesthesia injection device comprises a support frame, a connecting plate, a plurality of second through holes, a clamping hole, a clamping pin and a clamping pin, wherein the end, close to the support frame, of the connecting plate is fixedly provided with an arc-shaped plate, the second through holes are arranged in the arc-shaped plate along the length direction of the arc-shaped plate, the clamping hole is arranged at the position, close to the connecting plate, of the support frame and can be opposite to the second through holes, and the clamping hole and the second through holes can be provided with the clamping pin together.

The invention relates to an anesthesia injection device, wherein the bottom of the support frame is provided with a rubber ball.

The invention discloses an anesthesia injection device, wherein the needle insertion module comprises a first guide cylinder, a first support rod, a first motor, a power supply module, a first output shaft, a first gear and a toothed ring; a first motor and a first supporting rod are fixed on the connecting plate, the top of the first supporting rod is fixed with the first guide cylinder, a puncture needle which moves and rotates along the guide of the first guide cylinder is arranged in the first guide cylinder, a first gear is coaxially fixed on the top of a first output shaft of the first motor, the first gear is meshed with the gear ring, and the gear ring is fixed on the outer circumferential surface of the puncture needle;

the first motor is connected with the power module through a lead.

The invention discloses an anesthetic injection device, wherein a needle inserting module comprises a first guide cylinder, a first supporting rod, a first motor, a power supply module, a first output shaft, a first deflector rod and two clamping rings; a first motor and a first supporting rod are fixed on the connecting plate, the top of the first supporting rod is fixed with the first guide cylinder, a puncture needle which moves and rotates along the first guide cylinder is arranged in the first guide cylinder, one end of a first deflector rod is fixed on the top of a first output shaft of the first motor, the other end of the first deflector rod is arranged in two snap rings, and the two snap rings are coaxially fixed on the outer circumferential surface of the puncture needle;

the first motor is connected with the power module through a lead.

The anesthesia injection device comprises a needle insertion module, a first motor, a second motor, a first gear, a second gear, a connecting plate, a first input shaft, a second output shaft, a first supporting rod, a second supporting rod, a first output shaft, a second output shaft and a second output shaft, wherein the first output shaft of the first motor is coaxially fixed with the first gear through the gear box, the lower end of the second supporting rod is fixed with the upper surface of the connecting plate, the upper end of the second supporting rod is fixed with the gear box, the second input shaft of the gear box is fixed with the first output shaft of the first motor, and the second output shaft of the gear box is coaxially fixed with the first gear.

The invention discloses an anesthesia injection device, wherein the needle inserting module further comprises a first bevel gear, a second bevel gear, a first shaft, a third support rod, a chuck, a fourth toothed ring, a fifth gear, a sliding block, a spring, a second guide cylinder, a first electromagnet and a fourth support rod, a first output shaft of a first motor is coaxially fixed with the first bevel gear, the first bevel gear is meshed with the second bevel gear, the second bevel gear is coaxially fixed with the first shaft, the first shaft is externally wound with the fourth toothed ring, the chuck is coaxially fixed with the first shaft, the first shaft is arranged at the upper part of the third support rod through a bearing, the lower end of the third support rod is fixed with the connecting plate, the fourth toothed ring is meshed with the fifth gear, and the fifth gear is coaxially fixed with the outer circumferential surface of a puncture needle;

the upper surface of connecting plate with the bottom of fourth bracing piece is fixed, the top of fourth bracing piece with the second guide cylinder is fixed, be fixed with first electro-magnet in the second guide cylinder, first electro-magnet can attract the slider of iron, first electro-magnet is fixed with the one end of spring, the other end of spring with the slider is fixed, the slider is followed the second guide cylinder removes, and the side surface of fourth ring gear can be hugged closely to the slider.

The anesthesia injection device is different from the prior art in that the anesthesia injection device is fixed through a bayonet lock between a connecting plate and a support frame, so that the needle inserting direction of a puncture needle guided on a needle inserting module is adjusted, the puncture needle is guided and supported, the problems of local infection, deepened injury degree, increased pain of a patient and the like caused by shaking or over-slow manual operation in the needle inserting process are solved, the first guide cylinder can guide the puncture needle and does not block the puncture needle to rotate randomly, the needle inserting quality of the puncture needle can be guaranteed, the needle inserting difficulty can be simplified, the operation quality of a user is improved, and the pain of the user is reduced.

The anesthetic injection device of the present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of an anesthetic injection apparatus;

FIG. 2 is a change of motion state diagram of FIG. 1;

FIG. 3 is a schematic diagram of a variation of the structure of FIG. 1;

FIG. 4 is a schematic right-side view of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 1;

FIG. 6 is an enlarged view of a portion of FIG. 3;

FIG. 7 is an enlarged view of a portion of FIG. 6;

fig. 8 is a partially enlarged view of fig. 5.

Detailed Description

As shown in figures 1-8, referring to figures 1-4, the anesthetic injection device of the present invention comprises

A puncture needle 100 in which a catheter or a needle core can be arranged;

the middle of the pore plate 200 is provided with a first through hole 201, and the puncture needle 100 is opposite to the first through hole 201 and is fixed at the position of a patient needing to be inserted through a fixing band 202;

one end of the connecting plate 300 is hinged with the pore plate 200, the other end of the connecting plate is hinged with the support frame 301, and the connecting plate 300 and the support frame 301 are fixed through a bayonet 302 to adjust the bending angle and the needle inserting angle of the connecting plate 300;

and a needle insertion module 400 which is disposed on the connection plate 300 and guides the puncture needle 100 to be inserted in a manner facing the first through hole 201 of the orifice plate 200 by using a first guide 401.

The invention adjusts the needle inserting direction of the puncture needle 100 guided on the needle inserting module 400 by fixing the bayonet lock between the connecting plate 300 and the supporting frame 301, and guides and supports the puncture needle 100, so as to avoid the problems of local infection, deepened injury degree, increased pain of patients and the like caused by shaking or over-slow hand operation in the needle inserting process, and the first guide cylinder 401 can guide the puncture needle 100 and does not obstruct the puncture needle 100 to rotate randomly, therefore, the needle inserting quality of the puncture needle 100 can be ensured, the needle inserting difficulty can be simplified, the operation quality of a user can be improved, and the pain of the user can be reduced.

The needle insertion required position of the user can be the back or the shoulder or the limbs or the abdomen of the user, and the back is preferred.

The fixing band 202 may be an elastic band or two bands provided with hook and loop fasteners, and the bands may be made of nylon, rubber, cotton cloth or hemp cloth.

The needle head of the puncture needle 100 is a needle head provided with an inclined plane, before the needle head on the inclined plane touches and punctures the ligamentum flavum, the needle head on the inclined plane is parallel to the trend of the ligamentum flavum so as to avoid directly puncturing the ligamentum flavum, and when the ligamentum flavum is punctured, a drip is needed to be dripped at the needle tail, and the needle head on the inclined plane is adjusted to be perpendicular to or not parallel to the trend of the ligamentum flavum or spirally pushed into the puncture needle so as to reduce the resistance for puncturing the ligamentum flavum.

When the fixing device is used, a user firstly arranges the pore plate 200 on the back of a patient through the fixing band 202, and adjusts the fixing band 202 to firmly fix the pore plate 200, so that the first through hole 201 is opposite to the position needing to be inserted. The angle between the connecting plate 300 and the supporting frame 301 is adjusted, so as to adjust the angle of the connecting plate 300, that is, the angle of the puncture needle 100, for example, the central access may be the puncture needle 100 arranged horizontally, and the fat central access may be the puncture needle 100 arranged obliquely. Firstly, when the inclined needle head of the puncture needle 100 is arranged in the trend of the ligamentum flavum in parallel as much as possible, the needle core is arranged in the puncture needle 100 for puncture until the resistance is increased to reach the ligamentum flavum, and then the puncture needle 100 is rotated until the inclined needle head is nearly perpendicular to the ligamentum flavum or is continuously inserted into the needle until the ligamentum flavum is punctured.

As a further explanation of the embodiment, referring to fig. 1 and 5, an arc-shaped plate 303 is fixed to one end of the connecting plate 300 close to the supporting frame 301, a plurality of second through holes 304 are arranged in the arc-shaped plate 303 along the length direction thereof, a clamping hole 320 capable of facing the second through hole 304 is arranged at a position of the supporting frame 301 close to the connecting plate 300, and a clamping pin 302 can be arranged in the clamping hole 320 and the second through hole 304 together.

According to the invention, the connecting plate 300 and the support frame 301 which are connected through the hinge can form different included angles through the arc-shaped plate 303, the second through hole 304, the clamping hole 320 and the clamping pin 302, so that the connecting plate 300 can form different included angles relative to the pore plate 200, and the needle inserting angle of the puncture needle 100 can be adjusted.

The aperture of the second through hole 304 of the orifice plate 200 is large enough to allow the puncture needle 100 to be inserted into the patient at any angle without obstructing the insertion.

As a further explanation of the embodiment, referring to fig. 1 and 4, the bottom of the supporting frame 301 is provided with a rubber ball 305.

The rubber ball 305 of the present invention can act as a counterweight and increase resistance to prevent slippage with the table top or frame, which reduces support.

The present invention may be fixed by only the supporting force of the fixing band 202 and the supporting frame 301 without the rubber ball 305.

For further explanation of the embodiment, referring to fig. 3, 6 and 7, the needle insertion module 400 includes a first guide cylinder 401, a first support rod 402, a first motor 403, a power supply module 404, a first output shaft 405, a first gear 406, and a toothed ring 407; a first motor 403 and a first support rod 402 are fixed on the connecting plate 300, the top of the first support rod 402 is fixed with the first guide cylinder 401, the puncture needle 100 which moves and rotates along the guide of the first guide cylinder 401 is arranged in the first guide cylinder 401, a first gear 406 is coaxially fixed on the top of a first output shaft 405 of the first motor 403, the first gear 406 is meshed with the gear ring 407, and the gear ring 407 is fixed on the outer circumferential surface of the puncture needle 100;

wherein, the first motor 403 is connected with the power module 404 through a wire.

In the present invention, the engagement between the first gear 406 and the ring gear 407 enables the torque of the rotation of the first motor 403 to be converted into the puncture force of the puncture needle 100 in the lateral direction, and the ring gear 407 is configured to enable the puncture needle 100 to be engaged with the first gear 406 even at an arbitrary rotation angle or when the puncture needle is continuously rotated.

The gear ring 407 is a gear ring 407 in which a plurality of annular bodies are uniformly arranged, which is the same as the rack. The ring gear 407 can achieve the effect of a rack engaged with a gear even when the puncture needle 100 is rotated to an arbitrary angle or continuously rotated. The ring gear 407 is shaped like a worm screw.

As a variation of this embodiment, referring to fig. 1 and 5, the needle insertion module 400 includes a first guide cylinder 401, a first support rod 402, a first motor 403, a power module 404, a first output shaft 405, a first shift lever 408, and two snap rings 409; a first motor 403 and a first support rod 402 are fixed on the connecting plate 300, the top of the first support rod 402 is fixed with the first guide cylinder 401, the puncture needle 100 which moves and rotates along the first guide cylinder 401 is arranged in the first guide cylinder 401, one end of a first deflector rod 408 is fixed on the top of a first output shaft 405 of the first motor 403, the other end of the first deflector rod 408 is arranged in two snap rings 409, and the two snap rings 409 are coaxially fixed on the outer circumferential surface of the puncture needle 100;

The invention guides the needle insertion and rotation of the puncture needle 100 through the first support rod 402 and the first guide cylinder 401, thereby avoiding the injury of user tissues caused by overlarge needle insertion difficulty of the puncture needle 100, and the torque of the first motor 403 is transmitted between the two snap rings 409 through the first motor 403, the first deflector rod 408 and the two snap rings 409, so that the rotating force of the first motor 403 can be changed into the transverse needle insertion force, and the adjustment of different needle insertion force is realized by adjusting the output of different power or voltage or current power of the first motor 403 by the power module 404, thereby avoiding the direct puncture of ligamentum flavum or the more pain brought to patients by too slow needle insertion.

Due to the characteristics of the first motor 403, when the resistance of the motor is too large, the motor cannot rotate continuously even if the motor is powered on, then the power supply of the power module is gradually increased from small to large, and the puncture needle cannot be inserted continuously during the period of continuously increasing the power supply, which means that the needle head of the puncture needle 100 reaches the ligamentum flavum. At this time, the non-resistance injector can be inserted into the tail of the puncture needle 100 to test whether the needle rebounds, if so, the needle reaches the ligamentum flavum, and then a drop of water is dropped from the tail of the puncture needle 100 to rotate the puncture needle 100 for a certain angle or rotate the puncture needle 100 all the time to puncture the ligamentum flavum. The above-mentioned method can produce less needle insertion accidents, increase safety and provide convenience for medical staff because of the standardized motor and the adjustment of the power-on size.

The first motor 403 may be a permanent magnet synchronous motor or an asynchronous motor.

Wherein, one end of the first shift lever 408 disposed on the two snap rings 409 may be configured with a roller through a bearing to reduce friction.

As shown in fig. 3, the first guide cylinder 401 may be disposed at a position of the first motor 403 close to the orifice plate 200 to ensure accurate needle insertion and less damage to the patient tissue caused by the puncture needle 100. Of course, referring to fig. 1, the first guide cylinder 401 may also be disposed on the side of the first motor 403 away from the orifice plate 200 to ensure that the driving force for needle insertion is more direct, less loss and easier to control.

As a further explanation of the embodiment, referring to fig. 3, 6 and 7, the needle inserting module 400 further includes a gear box 410 and a second supporting rod 411, a first output shaft 405 of the first motor 403 is coaxially fixed with the first gear 406 through the gear box 410, a lower end of the second supporting rod 411 is fixed with an upper surface of the connecting plate 300, an upper end of the second supporting rod 411 is fixed with the gear box 410, a second input shaft 416 of the gear box 410 is fixed with the first output shaft 405 of the first motor 403, and a second output shaft 415 of the gear box 410 is coaxially fixed with the first gear 406.

According to the invention, the ratio of the rotating speed of the first output shaft 405 of the first motor 403 to the rotating speed of the first gear 406 can be increased through the gear box 410, that is, the first output shaft 405 of the first motor 403 rotates 100 times, and the first gear 406 rotates 1 time, so that the needle inserting speed of the puncture needle 100 is reduced, the maximum torque requirement is reduced, the power consumption requirement is reduced, and the service life of the first motor 403 is protected.

For example, the input-to-output ratio of the gearbox 410 is: 3-100: 1.

the gearbox 410 includes a box 412, a second gear 413, a third gear 414, a second output shaft 415, and a second input shaft 416, the box 412 of the gearbox 410 is fixed to a second support rod 411, the box 412 of the gearbox 410 is provided with the second input shaft 416 and the second output shaft 415 through bearings, the second input shaft 416 is coaxially fixed to the second gear 413 and a first output shaft 405 of the first motor 403, the second output shaft 415 is coaxially fixed to the third gear 414 and a second output shaft 415, the second gear 413 is engaged with the third gear 414, and the second output shaft 415 is coaxially fixed to the first gear 406.

The gear box 410 of the present invention can reduce the speed of the first output shaft 405 of the first motor 403 by the above-described structure.

As a further explanation of the embodiment, referring to fig. 3, 6, 7 and 8, the needle inserting module 400 further includes a first bevel gear 421, a second bevel gear 422, a first shaft 423, a third support rod 424, a chuck 425, a fourth gear ring 426, a fifth gear 427, a slider 428, a spring 429, a second guide tube 430, a first electromagnet 431 and a fourth support rod 432, the first output shaft 405 of the first motor 403 is coaxially fixed to the first bevel gear 421, the first bevel gear 421 is engaged with the second bevel gear 422, the second bevel gear 422 is coaxially fixed to the first shaft 423, the first shaft 423 is externally wound with the fourth gear ring 407, the first shaft 423 is coaxially fixed to the chuck 425, the first shaft 423 is mounted on the upper portion of the third support rod 424 through a bearing, the lower end of the third support rod 424 is fixed to the connecting plate 300, the fourth gear ring 407 is engaged with the fifth gear ring 427, the fifth gear 427 is fixed coaxially with the outer circumferential surface of the puncture needle 100;

the upper surface of the connecting plate 300 is fixed to the bottom of the fourth supporting rod 432, the top of the fourth supporting rod 432 is fixed to the second guide cylinder 430, a first electromagnet 431 is fixed in the second guide cylinder 430, the first electromagnet 431 can attract an iron sliding block 428, the first electromagnet 431 is fixed to one end of a spring 429, the other end of the spring 429 is fixed to the sliding block 428, the sliding block 428 moves along the second guide cylinder 430, and the sliding block 428 can be tightly attached to the side surface of the fourth toothed ring 426.

In the present invention, when the first output shaft 405 of the first motor 403 drives the first gear 406 to rotate, the torque is transmitted to the first shaft 423 through the first bevel gear 421 and the second bevel gear 422, and when the first electromagnet 431 does not attract the slider 428, the above-mentioned components can function, so that when the first motor 403 drives the puncture needle 100 to insert the needle through the fourth gear ring 426 and the fifth gear 427, the puncture needle 100 is synchronously driven to rotate, thereby forming the effect of spiral needle insertion, further simplifying the operation of the medical staff, and basically realizing automatic needle insertion, and in the above-mentioned control, the operation risk can be reduced by driving the power module 404 from small to large power, and the puncture needle 100 can be prevented from being inserted too slowly, too fast, too much, or too little.

The power of the power module 404 may be 0.1 w-100 w, and the maximum torque thereof may be limited by limiting the maximum power thereof, so as to avoid the exertion of excessive force for puncturing.

The power module of the first electromagnet 431 is connected with a user terminal through a wireless communication module, so that a user can remotely switch on and off the power module of the first electromagnet 431 through the user terminal, and the power module can be a battery with a circuit board. Each of which may be disposed within second guide sleeve 430.

When the first electromagnet 431 does not attract the slider 428, the slider 428 abuts against the fourth ring gear 426 via a spring 429 to the chuck 425, so that the fourth ring gear 426 rotates synchronously with the first shaft 423, and when the first electromagnet 431 attracts the slider 428, the fourth ring gear 426 does not rotate synchronously with the first shaft 423.

The first guide cylinder 401 may have a cylindrical through hole therein, and the second guide cylinder 430 may have a cylindrical or square cylindrical blind hole therein.

Wherein the fourth ring gear 407 may be: the fourth gear ring 426 can move transversely along the axial direction of the first shaft 423, so that whether the fourth gear ring 426 rotates synchronously with the first shaft 423 or not can be switched.

When the fourth toothed ring 407 is tightly attached to the chuck 425, the chuck 425 can rotate the fourth toothed ring 407 coaxially with the chuck 425 by the rubber layer or the pins provided on the surface of the chuck 425 close to the fourth toothed ring 407.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. An anesthetic injection apparatus, comprising: comprises that

A puncture needle (100) in which a catheter or a needle core can be arranged;

the middle of the pore plate (200) is provided with a first through hole (201), the puncture needle (100) is over against the first through hole (201), and the puncture needle is fixed at the position of a patient needing to be inserted through a fixing band (202);

one end of the connecting plate (300) is hinged with the pore plate (200), the other end of the connecting plate is hinged with the support frame (301), and the connecting plate (300) and the support frame (301) are fixed through a clamping pin (302) to adjust the bending angle and the needle inserting angle of the connecting plate (300);

a needle insertion module (400) which is arranged on the connecting plate (300) and guides the puncture needle (100) to be inserted in a manner of facing the first through hole (201) of the orifice plate (200) by using a first guide cylinder (401);

two fixing straps (202) are provided with the strap body with the magic tape.

2. The anesthetic injection apparatus of claim 1, wherein: an arc-shaped plate (303) is fixed at one end, close to the support frame (301), of the connecting plate (300), a plurality of second through holes (304) are formed in the arc-shaped plate (303) along the length direction of the arc-shaped plate, a clamping hole (320) capable of being opposite to the second through holes (304) is formed in the support frame (301) close to the connecting plate (300), and clamping pins (302) can be jointly arranged in the clamping hole (320) and the second through holes (304);

the needle inserting module (400) comprises a first guide cylinder (401), a first supporting rod (402), a first motor (403), a power module (404), a first output shaft (405), a first driving lever (408) and two clamping rings (409); a first motor (403) and a first support rod (402) are fixed on the connecting plate (300), the top of the first support rod (402) is fixed with the first guide cylinder (401), a puncture needle (100) which moves and rotates along the guide of the first guide cylinder (401) is arranged in the first guide cylinder (401), one end of a first shift lever (408) is fixed on the top of a first output shaft (405) of the first motor (403), the other end of the first shift lever (408) is arranged in two clamping rings (409), and the two clamping rings (409) are coaxially fixed on the outer circumferential surface of the puncture needle (100); wherein the first motor (403) is connected with a power module (404) through a lead;

the needle inserting module (400) further comprises a first bevel gear (421), a second bevel gear (422), a first shaft (423), a third supporting rod (424), a chuck (425), a fourth toothed ring (426), a fifth gear (427), a sliding block (428), a spring (429), a second guide cylinder (430), a first electromagnet (431) and a fourth supporting rod (432), a first output shaft (405) of the first motor (403) is coaxially fixed with the first bevel gear (421), the first bevel gear (421) is meshed with the second bevel gear (422), the second bevel gear (422) is coaxially fixed with the first shaft (423), a fourth toothed ring (407) is wound outside the first shaft (423), the chuck (425) is coaxially fixed on the first shaft (423), the first shaft (423) is mounted on the upper portion of the third supporting rod (424) through a bearing, and the lower end of the third supporting rod (424) is fixed with the connecting plate (300), the fourth gear ring (407) is meshed with the fifth gear (427), and the fifth gear (427) is coaxially fixed with the outer circumferential surface of the puncture needle (100);

the upper surface of the connecting plate (300) is fixed with the bottom of the fourth supporting rod (432), the top of the fourth supporting rod (432) is fixed with the second guide cylinder (430), a first electromagnet (431) is fixed in the second guide cylinder (430), the first electromagnet (431) can attract an iron sliding block (428), the first electromagnet (431) is fixed with one end of a spring (429), the other end of the spring (429) is fixed with the sliding block (428), the sliding block (428) moves along the second guide cylinder (430), and the sliding block (428) can be tightly attached to the side surface of the fourth toothed ring (426).