CN116999137A - MIPPO bone fracture plate for front and outer sides of middle and distal humerus shaft fracture - Google Patents

Abstract

The application belongs to the field of medical equipment, and particularly relates to an anterolateral MIPPO bone fracture plate for fracture of a middle distal end of a humerus shaft, which comprises a bone fracture plate main body, wherein a plurality of first screw holes are uniformly formed in the direction from the proximal end to the middle end and the distal end of the bone fracture plate main body, a plurality of second screw holes are formed in the distal end of the bone fracture plate main body, the diameter of each first screw hole is larger than that of each second screw hole, screw holes which are matched with screws with different diameters are respectively formed in the distal end and the proximal end of the bone fracture plate, the anatomical structure characteristics of bones are adapted, the structural design of the bone fracture plate is established on humerus CT scan data of a plurality of patients, the structural design is carried out according to the reconstructed humerus three-dimensional model structure, the bone fracture plate main body is more in line with anatomical characteristics of the patients, and matched with matched equipment, the bone fracture plate main body is more suitable for anterior lateral MIPPO operation, the indirect reduction of fracture can be realized, the operation is further simplified, the operation time is saved, the bleeding amount is reduced, and the operation trauma is reduced.

Description

MIPPO bone fracture plate for front and outer sides of middle and distal humerus shaft fracture

Technical Field

The application belongs to the field of medical instruments, and particularly relates to an anterolateral MIPPO bone fracture plate for distal end fracture in humerus stem.

Background

Fractures of the middle and distal humerus shaft are often caused by irregular movements of throwing, wrestling, wrenching and the like of athletes, and fractures of the middle and lower humerus shaft are easy to occur. The radial nerve bypasses, the traditional incision and reduction internal fixation operation has large operation wound, long time and more complications, and the radial nerve injury is easy to occur;

the dissection of the middle and far segments of the humerus shaft is special, the dissection is gradually changed from a cylindrical shape into a triangular shape, so that the surface of a bone is irregular, the defect of the traditional fracture minimally invasive surgery is that no dissection bone plate is available, if a straight bone plate is used, the angulation deformity can occur at the fracture part, thus the bone plate needs to be pre-bent in the operation, the operation time is prolonged, and the pre-bent bone plate is not completely matched with the surface of the bone because no normal anatomical structure is compared;

a clinical distal humerus fracture bone plate, a first support plate, which is in a handle shape, as in patent application number CN 201210018341.2; and a second support plate having a substantially square shape, wherein the width of the main body of the first support plate is narrower than the width of the main body of the second support plate, one end of the first support plate, which is far from the second support plate, has an arc-shaped end, one end of the second support plate, which is far from the first support plate, has a substantially straight-line end which is inclined slightly upward, and the left end of the second support plate, which is connected with the second support plate, has a substantially square arc-shaped end, the left edge of the connection part of the second support plate and the first support plate is inclined slightly to the central part of the main body of the second support plate in an arc shape, the right edge of the connection part of the second support plate and the first support plate is inclined to the central part of the main body of the second support plate in an arc shape which is concave inward, and is connected with the upper edge of the second support plate, a plurality of fixing screw through holes are provided in the main body of the first support plate along the length direction, and two rows of fixing screw through holes are distributed substantially uniformly along the width direction, but the technical scheme has the disadvantage that the diameter of the screw holes are not adapted to the screw hole of the screw holes of the far end and the near end of the bone plate are the same.

Disclosure of Invention

The application aims to provide an MIPPO bone plate for the front and outer sides of distal fracture in humeral diaphysis, which solves the problems in the prior art, and has the following specific technical scheme:

a MIPPO bone plate for the front and outer sides of fractures of the middle and distal ends of a humerus shaft comprises a bone plate body, wherein a plurality of first screw holes are uniformly formed in the direction from the proximal end to the middle end and in the distal end of the bone plate body, a plurality of second screw holes are formed in the distal end of the bone plate body, and the first screw holes are larger than the second screw holes in diameter.

Further, the bone plate body is flat at the distal end and may be anatomically compatible with the anterior surface of the lateral condyle at the distal end of the humerus.

Further, the first screw hole is formed by compounding a non-threaded pressurizing hole and a threaded locking hole, the locking hole can be matched with a locking screw with the diameter of 3.5mm, and the second screw hole can be matched with a locking screw with the diameter of 3.0 mm.

Further, the second screw hole is a universal hole and is matched with a screw for universal locking.

Further, the second screw holes are provided with two rows and distributed in a staggered manner.

Further, the first screw hole and the second screw hole are of a conical opening structure, and the tip end of the conical opening structure is downwards arranged.

Further, the bone fracture plate main part comprises a near end plate, one or more long boards, one or more short boards and a far end board, all is equipped with the locating hole on near end plate, long board, short board and the far end board, near end plate, long board, short board and far end inboard all are equipped with rectangular notch, near end plate, long board, two liang sliding connection of short board and far end board, and junction is equipped with the cushion.

Further, be equipped with spring one in the short board, spring one end is fixed inside the short board, spring one other end is fixed in function board one side, short board and function board sliding connection, function board opposite side is fixed with three spacing post one, spacing post one and spacing post two sliding fit connection, spacing post two is fixed on the gusset plate, short board and gusset plate sliding connection, gusset plate and two one end fixed connection of spring, spring two other ends are fixed inside the short board, be equipped with the spring three in the long board, spring three one end is fixed in the long board, spring three other ends are fixed on spacing ball, long board and spacing ball sliding connection, spacing ball and drug delivery device sliding fit connection.

Further, put medicine device includes the shell, be equipped with notch two on the shell, shell tip sliding connection has the end cap, the inside nanometer battery that is fixed with of shell, nanometer battery is connected with the controller electricity, the controller is connected with the display screen electricity, the controller is connected with nanometer motor electricity, nanometer motor front end is connected with the screw rod, screw rod and square slider screw thread transmission are connected, shell and square slider sliding connection, square slider and push rod one end fixed connection, the push rod other end slides and pierces into miniature medicine storage bottle inside and fix on the removal plug, miniature medicine storage bottle is fixed inside the shell, miniature medicine storage bottle and removal plug sliding connection, be equipped with into the medicine mouth on the miniature medicine storage bottle, and communicate outside the shell, the medicine mouth is plugged up by the piston, miniature medicine storage bottle and play medicine pipe one end fixed connection, go out medicine pipe connection is equipped with a plurality of medicine holes in the inside layer of hollowing of shell outside and the layer of hollowing, a plurality of medicine holes all are plugged by the piston.

Further, the medicine placing device is located in a long groove opening of the long plate, the shell is connected with the two limiting balls in a sliding fit mode, and the plug is connected with the two limiting balls in a sliding fit mode.

The application has the advantages that:

1. screw holes which are matched with screws with different diameters are respectively arranged at the far end and the near end of the bone fracture plate, so that the bone fracture plate is suitable for the anatomical structure characteristics of bones.

2. The structural design of the bone fracture plate is established on the CT scan data of the humerus of a plurality of patients, and is designed according to the reconstructed three-dimensional model structure of the humerus, so that the bone fracture plate is more in line with the anatomical characteristics of people.

3. Matched with matched equipment, the device is more suitable for being used for anterior and lateral MIPPO operation, can realize indirect reduction of fracture, further simplifies operation, saves operation time, reduces bleeding amount and reduces operation wound.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present application;

FIG. 2 is a schematic diagram of the whole structure of the present application;

FIG. 3 is a schematic diagram of the overall structure of the present application;

FIG. 4 is a schematic diagram of the overall structure of the present application;

FIG. 5 is a schematic diagram of the overall structure of the present application;

FIG. 6 is a schematic diagram of the overall structure of the present application;

FIG. 7 is a schematic view of the main body of the bone plate of the present application;

FIG. 8 is a schematic diagram of a drug delivery device according to the present application;

FIG. 9 is a schematic diagram of a drug delivery device according to the present application;

FIG. 10 is a schematic diagram of a drug delivery device according to the present application;

the figure indicates:

1. a bone plate body; 101. a proximal plate; 102. a long plate; 103. a short plate; 104. a distal plate; 2. screw hole I; 3. screw holes II; 4. positioning holes; 5. a strip notch; 6. a soft cushion; 7. a first spring; 8. a function board; 9. a first limit column; 10. a second limit column; 11. a reinforcing plate; 12. a second spring; 13. a third spring; 14. limiting pellets; 15. a drug delivery device; 1501. a housing; 1502. a notch II; 1503. a plug; 1504. a nano storage battery; 1505. a controller; 1506. a display screen; 1507. a nano motor; 1508. a screw; 1509. square slide block; 1510. a push rod; 1511. miniature medicine storage bottle; 1512. moving the plug; 1513. a medicine inlet; 1514. a medicine outlet pipe; 1515. digging a hollow layer; 1516. and a medicine outlet hole.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

1-10, the MIPPO bone fracture plate for the anterolateral fracture of the middle distal end of the humerus shaft comprises a bone fracture plate main body 1, wherein a plurality of screw holes I2 are uniformly formed in the direction from the proximal end to the middle end and the distal end of the bone fracture plate main body 1, a plurality of screw holes II 3 are formed in the distal end of the bone fracture plate main body 1, the diameter of each screw hole I2 is larger than that of each screw hole II 3, each screw hole I2 is formed by compounding a non-threaded pressurizing hole and a threaded locking hole, the locking holes can be matched with locking screws with the diameter of 3.5mm, the screw holes II 3 can be matched with locking screws with the diameter of 3.0mm, and the distal end of the bone fracture plate main body 1 is flat and can be matched with the anterior surface anatomy of the lateral condyle of the distal end of the humerus;

the working principle of the technical scheme is as follows: the bone fracture plate comprises a bone fracture plate body 1, a plurality of screw holes I2, a plurality of screw fixing and stabilizing devices, wherein the screw holes I2 are 3.5mm in diameter, the screw holes II 3 are 3.0mm in diameter, the bone fracture plate body 1 is characterized in that the proximal end to the middle distal end of the bone fracture plate body 1 can be fixed at the diaphysis end from the proximal end to the middle distal end of the humerus, the bone fracture plate body 1 is flat and can be matched with the front surface anatomy of the condyle at the distal end of the humerus, the bone fracture plate body 1 is suitable for the semi-spiral anatomy structure with larger distal end movement deformation in the humerus, and the technical operation specification for treating the humerus fracture by minimally invasive surgery of a specific front and outer side access is as follows: the patient is in a supine position, the affected limb is abducted on the support arm plate, after the sterilization and towel spreading, the incision with the length of about 4 cm to 5cm can be touched along the surface of the lateral humerus condyle bone thorn, and the skin and subcutaneous tissues are incised in layers; when reaching periosteum, firstly, under the condition of forearm pronation, a channel is established under periosteum, a novel anatomic bone plate with proper length is selected, a cut with the length of about 4-5cm is cut at the far end of the proximal anterior medial bone plate, the muscle gap between the long and short heads of biceps brachii is separated and entered, the locking bone plate is led in from a bone canal, and is pulled and reset, so that the far end, the near end and bone plate are attached to each other, the fracture broken end is indirectly reset, C-arm perspective is carried out after temporary fixation, the proper position of the bone plate is confirmed, after the fracture reset is satisfied, three locking screws are respectively placed at the near end of the fracture, four locking screws are placed at the far end, the cut is closed by intermittent suture, drainage can not be placed, the whole operation process is controlled within about 50-60 minutes, and the bleeding is generally controlled within 100ml, the principle of the method is that the forearm is kept in a position where the elbow joint bends for 90 degrees, the radial nerve is kept relaxed, a channel is built below periosteum as much as possible, if the channel is built below periosteum, the channel is built against the periosteum as much as possible, the channel is built in the muscle strictly, the far-end incision does not exceed 7cm above the external epicondyle of the humerus, the radial nerve enters the brachial radial muscle from the back to the front through the external side of the humerus, if the operation is difficult, the radial nerve is exposed to be protected when necessary, the radial nerve is not exposed according to the operation, if the patient is in a butterfly bone block overturning state, the bone block is overturned to a normal position, functional exercise can be carried out after the postoperative anesthesia is recovered, and the operation is discharged about 3 days. Postoperative 1 month, 3 months, 6 months and 1 year outpatient re-examination;

the bone fracture plate main body 1 is fixed by screws with different diameters at the far and near ends respectively, is suitable for anatomical structure characteristics of bones, and the structural design of the bone fracture plate is established on the CT scanning data of the humerus of a plurality of patients, is designed according to the reconstructed three-dimensional model structure of the humerus, more accords with anatomical characteristics of the patients, is matched with matched equipment, and is more suitable for being used for an anterolateral MIPPO operation.

Example two

As shown in fig. 1-10, the second screw hole 3 is a universal hole and is matched with a screw for universal locking;

the working principle of the technical scheme is as follows: the screw hole II 3 is a universal hole, and the locking direction of the screw is designed to be universal, so that the operation is convenient, and the screw can be prevented from entering the coronal fossa or the olecranon fossa.

Example III

As shown in fig. 1-10, the screw holes two 3 are provided with two rows and are distributed in a staggered manner;

the working principle of the technical scheme is as follows: the screw holes II 3 are provided with two rows and are distributed in a staggered way, so that the holding force can be increased, and the firmness between the bone fracture plate and the bone is improved.

Example IV

As shown in fig. 1-10, the screw hole one 2 and the screw hole two 3 are both in a conical mouth structure, and the tip of the conical mouth structure is downward;

the working principle of the technical scheme is as follows: the openings of the screw hole I2 and the screw hole II 3 are conical downwards, the screw penetrates through the conical openings of the screw hole I2 and the screw hole II 3 to be fixed on bones, a nut on the screw can be immersed into the conical opening, and the middle position of the conical opening is located, so that the bone fracture plate can be fixed, the nut can be prevented from being exposed, and the operation is influenced.

Example five

As shown in fig. 1-10, the bone fracture plate main body 1 is composed of a proximal plate 101, one or more long plates 102, one or more short plates 103 and a distal plate 104, positioning holes 4 are formed in the proximal plate 101, the long plates 102, the short plates 103 and the distal plate 104, strip-shaped notches 5 are formed in the inner sides of the proximal plate 101, the long plates 102, the short plates 103 and the distal plate 104, the proximal plate 101, the long plates 102, the short plates 103 and the distal plate 104 are connected in a sliding mode, and soft cushions 6 are arranged at the connecting positions;

the working principle of the technical scheme is as follows: the proximal plate 101 and the distal plate 104 are components of two ends of the bone fracture plate main body 1, one or more long plates 102 and short plates 103 can be installed between the proximal plate 101 and the distal plate 104, the actual installation quantity is determined according to the distal end length in the diaphysis of a patient, the proximal plate 101, the long plates 102, the short plates 103 and the distal plate 104 are in sliding splicing, screw holes 2 between every two splice plates coincide, when screws are fixed through the screw holes 2, the two splice plates are further fixed, positioning holes 4 are formed in the proximal plate 101, the long plates 102, the short plates 103 and the distal plate 104, the bone fracture plate can be pre-fixed on bones through the positioning holes 4, the fixation is rapid, subsequent adjustment is convenient, long grooves 5 are formed in the inner sides of the proximal plate 101, the long plates 102, the short plates 103 and the distal plate 104, blood circulation can be accelerated, the bones can grow fast, the two splice plates splice and squeeze the cushion 6 to deform, and the cushion 6 plays a role of enabling the two splice plates to be more compact.

Example six

As shown in fig. 1-10, a first spring 7 is arranged in the short plate 103, one end of the first spring 7 is fixed in the short plate 103, the other end of the first spring 7 is fixed on one side of the functional plate 8, the short plate 103 is in sliding connection with the functional plate 8, three first limit posts 9 are fixed on the other side of the functional plate 8, the first limit posts 9 are in sliding fit connection with the second limit posts 10, the second limit posts 10 are fixed on the reinforcing plate 11, the short plate 103 is in sliding connection with the reinforcing plate 11, the reinforcing plate 11 is fixedly connected with one end of the second spring 12, the other end of the second spring 12 is fixed in the short plate 103, a third spring 13 is arranged in the long plate 102, one end of the third spring 13 is fixed in the long plate 102, the other end of the third spring 13 is fixed on the limit balls 14, the long plate 102 is in sliding connection with the limit balls 14, and the limit balls 14 are in sliding fit connection with the drug releasing device 15;

the working principle of the technical scheme is as follows: the exposed end of the functional plate 8 is provided with a groove shape, the functional plate 8 is stirred by using a tiny needle-shaped tool, the functional plate 8 moves to drive the first spring 7 to be compressed, the first three limiting posts 9 are driven to move along with the functional plate 8, the first limiting posts 9 are separated from the second limiting posts 10, the reinforcing plate 11 is driven to slide outwards from the inside of the short plate 103 under the action of the elastic force of the second spring 12, the reinforcing plate 11 is provided with screw holes, screws can be fixed on bones through the screw holes on the reinforcing plate 11, the stability of the bone plate is further reinforced, the functional plate 8 is provided with the first three limiting posts 9, the second limiting posts 10 can be limited to move, the reinforcing plate 11 is pushed into the short plate 103 correspondingly to adjust three gears of the reinforcing plate 11, the first limiting posts 9 clamp the second limiting posts 10 again, the reinforcing plate 11 is further retracted into the short plate 103, and in practical use, the short plate 103 can be spliced to any position between the near end plate 101 and the far end plate 104, the position of the reinforcing plate 11 is further changed, and adjustment can be carried out as required.

Example seven

As shown in fig. 1-10, the drug discharging device 15 includes a housing 1501, a slot two 1502 is provided on the housing 1501, a plug 1503 is slidingly connected to an end of the housing 1501, a nano storage battery 1504 is fixed inside the housing 1501, the nano storage battery 1504 is electrically connected with a controller 1505, the controller 1505 is electrically connected with a display screen 1506, the controller 1505 is electrically connected with a nano motor 1507, a front end of the nano motor 1507 is connected with a screw rod 1508 is in threaded transmission connection with a square slide 1509, the housing 1501 is slidingly connected with the square slide 1509, the square slide 1509 is fixedly connected with one end of a push rod 1510, the other end of the push rod 1510 is slidingly inserted into a micro drug storage bottle 1511 and is fixed on a movable plug 1512, the micro drug storage bottle 1511 is fixed inside the housing 1501, the micro drug storage bottle 1511 is slidingly connected with the movable plug 1512, a drug inlet 1513 is provided on the micro drug inlet 1511 and is communicated to the outside of the housing, the micro drug inlet 1513 is plugged by a piston 1517, the micro drug outlet 1514 is fixedly connected with one end of the drug outlet 1514, the drug outlet 1514 is connected with a hollowed out layer 1515 inside the housing, a plurality of hollowed out holes 1516 are provided between the housing 1516 and the outside of the piston 1516;

the working principle of the technical scheme is as follows: the drug delivery device 15 can be placed in the long slot 5 of the short plate 103, when the drug delivery device 15 is taken down, a tool similar to forceps is used, the front end of the tool is inserted into the two slots two 1502 respectively, the drug delivery device 15 is pulled out by force outwards, the nano storage battery 1504 fixed in the drug delivery device 15 can supply power to the display screen 1506 and the nano motor 1507 through the controller 1505, the micro screwdriver tool is used for rotating a rotary knob on the display screen 1506, the starting time and the starting time of the nano motor 1507 are further adjusted, the frequency and the quantity of follow-up drug extrusion are further changed, the controller 1505 controls the nano motor 1507 to start, the screw rod 1508 is driven to rotate, the square slide block 1509 is driven to move forwards in the shell 1501, the push rod 1510 is driven to move forwards, the moving plug 1512 is driven to move forwards, the drug in the micro drug storage bottle 1511 is further extruded into the hollow layer 1515 from the drug outlet pipe 1514, the drug outlet hole 1516 is advanced, the drug is accelerated to grow and recover from the bone and the bone, the position of the bone is actually accelerated, the position of the long plate 102 can be further adjusted, and the position of the long plate 102 can be mounted between the device 15 and the long plate 102 can be adjusted.

Example eight

As shown in fig. 1-10, the drug delivery device 15 is positioned in the elongated slot 5 of the elongated plate 102, the housing 1501 is connected with the two limit balls 14 in a sliding fit manner, and the plug 1503 is connected with the two limit balls 14 in a sliding fit manner;

the working principle of the technical scheme is as follows: the nanometer storage battery 1504 in the medicine discharging device 15 is fully charged in advance, a piston on the medicine inlet 1513 is pulled out, a miniature needle tube is used for adding medicine into the miniature medicine storage bottle 1511 in advance, the medicine inlet 1513 is plugged by the piston, one end of the shell 1501 is pressed into the long plate 102, the limiting ball 14 is driven to move towards the inside of the long plate 102, the spring III 13 is driven to be compressed, when one end of the shell 1501 is pressed into a certain position, under the action of the elasticity of the spring III 13, part of the volume of the limiting ball 14 rebounds into the shell 1501, the shell 1501 is fixed, the plug 1503 arranged at the other end of the shell 1501 is pressed into the long plate 102 in the same mode, and the medicine discharging device 15 is fixed in the long plate 102.

It will be understood that the application has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. The MIPPO bone fracture plate for the anterolateral side of the distal end fracture in the humerus stem is characterized by comprising a bone fracture plate main body (1), wherein a plurality of first screw holes (2) are uniformly formed in the direction from the proximal end to the middle end and the distal end of the bone fracture plate main body (1), a plurality of second screw holes (3) are formed in the distal end of the bone fracture plate main body (1), and the diameter of the first screw holes (2) is larger than that of the second screw holes (3).

2. The anterolateral MIPPO bone plate for distal fracture in the humeral shaft according to claim 1, wherein said bone plate body (1) is distally flat, compatible with humeral distal lateral condyle anterior surface anatomy.

3. The anterior-lateral MIPPO bone plate for distal fracture in the humeral shaft according to claim 1, wherein screw hole one (2) is composed of a combination of a threadless compression hole and a threaded locking hole, the locking hole being adaptable to a locking screw having a diameter of 3.5mm, and screw hole two (3) being adaptable to a locking screw having a diameter of 3.0 mm.

4. The anterior-lateral MIPPO bone plate for distal fracture in the humeral shaft according to claim 1, wherein said screw hole two (3) is a universal hole, which is universally locked with a mating screw.

5. The anterior-lateral MIPPO bone plate for distal fracture in the humeral shaft according to claim 1, wherein said screw holes two (3) are provided in two rows and staggered.

6. The anterior-lateral MIPPO bone plate for distal fracture in humeral shaft according to claim 1, wherein screw hole one (2) and screw hole two (3) are both of a conical mouth structure with the tip of the conical mouth structure disposed downward.

7. The bone plate for the anterolateral MIPPO of distal fracture in humeral shaft according to claim 1, wherein said bone plate body (1) is composed of a proximal plate (101), one or more long plates (102), one or more short plates (103) and a distal plate (104), positioning holes (4) are provided on the proximal plate (101), the long plates (102), the short plates (103) and the distal plate (104), elongated slots (5) are provided on the inner sides of the proximal plate (101), the long plates (102), the short plates (103) and the distal plate (104), the proximal plate (101), the long plates (102), the short plates (103) and the distal plate (104) are slidably connected in pairs, and soft pads (6) are provided at the joints.

8. The MIPPO bone plate for the anterolateral fracture in the diaphysis of the humerus according to claim 7, wherein a first spring (7) is arranged in the short plate (103), one end of the first spring (7) is fixed inside the short plate (103), the other end of the first spring (7) is fixed on one side of the functional plate (8), the short plate (103) is in sliding connection with the functional plate (8), three limiting posts (9) are fixed on the other side of the functional plate (8), the limiting posts (9) are in sliding fit connection with a limiting post (10), the limiting post (10) is fixed on the reinforcing plate (11), the short plate (103) is in sliding connection with the reinforcing plate (11), the reinforcing plate (11) is fixedly connected with one end of the second spring (12), the other end of the second spring (12) is fixed inside the short plate (103), a third spring (13) is arranged in the long plate (102), one end of the third spring (13) is fixed in the long plate (102), the other end of the third spring (13) is fixed on the limiting ball (14), the long plate (102) is in sliding fit with the limiting ball (14), and the limiting ball (14) is in sliding fit with the limiting ball (15).

9. The MIPPO bone plate as in claim 8, wherein the drug delivery device (15) comprises a housing (1501), a notch II (1502) is arranged on the housing (1501), a plug (1503) is fixedly connected to the end of the housing (1501), a nano storage battery (1504) is fixedly arranged inside the housing (1501), the nano storage battery (1504) is electrically connected with a controller (1505), the controller (1505) is electrically connected with a display screen (1506), the controller (1505) is electrically connected with a nano motor (1507), a screw (1508) is connected to the front end of the nano motor (1507), the screw (1508) is in threaded transmission connection with a square slider (1509), the housing (1501) is in sliding connection with the square slider (1509), the square slider (1509) is fixedly connected with one end of a push rod (1510), the other end of the push rod (1510) is in sliding into a micro drug storage bottle (1511) and is fixedly arranged on a movable plug (1512), the micro drug storage bottle (1511) is fixedly arranged inside the housing (1511), the micro drug storage bottle (1511) is in sliding connection with the movable plug (1511) and is in sliding connection with the piston (1513) and is fixedly connected with the piston (1513) at one end of the piston (1513) and is fixedly connected with the piston (1513) at the outlet, the medicine outlet pipe (1514) is connected with the hollowed-out layer (1515) inside the casing (1501), a plurality of medicine outlet holes (1516) are formed between the outside of the casing (1501) and the hollowed-out layer (1515), and the medicine outlet holes (1516) are all blocked by the piston.

10. The anterior-lateral MIPPO bone plate for distal fracture in humeral shaft according to claim 9, wherein said drug delivery device (15) is located in the elongated slot (5) of the elongated plate (102), the housing (1501) is slidingly engaged with two limit balls (14), and the plug (1503) is slidingly engaged with two limit balls (14).