CN204744312U - Multi -functional bone internal fixation of crawler -type loading and unloading ware - Google Patents

Abstract

A crawler-type multifunctional internal bone fixation loader, comprising parts A, B, C and D which are connected to each other in a crawler style, and parts A and D can be detachably fastened together, and at the same time Integrate general hexagonal nut wrench, general hexagonal nut sleeve, coarse and fine grain bone file, caliper, steel wire straightener, steel wire twister and other functions on part A; integrate large parts on parts B, C and D Large and small bone drill keys, universal threaded needle wrenches in various shapes, universal bone screw setter, cannulated hex bone screw setter, large and small bone hole sounders, wire guides, bone screw holder The crawler-type multi-function intraosseous fixation loader composed of parts A, B, C and D has the advantages of multi-purpose, small and portable, and easy to organize and store. . Helps improve surgical quality and efficiency. It is especially suitable for grassroots itinerant medical treatment, emergency pre-hospital treatment, emergency rescue and disaster relief, and field surgery.

Description

A crawler-type multifunctional intraosseous fixation loader

technical field

The utility model relates to a medical operation instrument, in particular to a crawler-type multifunctional intraosseous fixation loader.

Background technique

At present, bone screw hole depth finders, bone screw chisels, bone screw holders, wire guides, wire straighteners, wire twisters and other instruments are required to load and unload bone screws or other instruments when performing internal fixation of fractures in clinical practice. Internal fixtures such as steel wires are indispensable. With many instruments, preoperative equipment preparation, intraoperative operation and postoperative arrangement are laborious and time-consuming.

Utility model content

Aiming at the deficiencies of the prior art, the utility model proposes a crawler-type multifunctional intraosseous fixation loader and unloader, which can effectively integrate the folding functions of various intraosseous surgical instruments, and each component can be folded and integrated together. It has the advantages of multi-purpose, small and portable, and easy to organize and store. Helps improve surgical quality and efficiency. It is especially suitable for medical teams to go to grassroots medical tours, emergency pre-hospital treatment, emergency rescue and disaster relief, and field surgery.

The purpose of this utility model is mainly achieved by the following technical solutions:

A crawler-type multifunctional internal bone fixation loader, including 4 parts A, B, C and D, all of which are arranged in an inverted "Y" shape.

The parts A, B, C and D are crawler-type connected through pin shafts;

The A piece includes a left arm of the A piece and a right arm of the A piece connected in the shape of "冂", and a connecting handle of the A piece arranged above the central axis of the connecting part of the left arm of the A piece and the right arm of the A piece. There is a circlip notch on the upper left side wall of the connecting handle of part A;

The B piece includes the B piece left arm and the B piece right arm connected in the shape of "冂", and the B piece connecting handle arranged above the central axis of the connecting part of the B piece left arm and the B piece right arm. The connecting handle of part B protrudes into the space clamped by the left arm of part A and the right arm of part A;

The C piece includes a C piece left arm and a C piece right arm connected in the shape of a "冂", and a C piece connecting handle arranged above the central axis of the connecting part of the C piece left arm and the C piece right arm. The connecting handle of part C protrudes into the space clamped by the left arm of part B and the right arm of part B;

The D piece includes the D piece left arm and the D piece right arm connected in the shape of "冂", and the D piece connecting handle arranged above the central axis of the connecting part of the D piece left arm and the D piece right arm, the The connecting handle of piece D protrudes into the space clamped by the left arm of piece C and the right arm of piece C, and the inner side of the left arm of piece D is correspondingly provided with a snap ring bumper, and the position of the snap ring bumper corresponds to the The position of the notch of the circlip of the A part is set, and the connecting handle of the A part is detachably clamped and fitted in the space clamped by the left arm of the D part and the right arm of the D part through the notch of the circlip.

In the preferred solution: the left arm of the A part is provided with an A scale mark and eight circular diameter-measuring through holes arranged at intervals in the longitudinal direction, and the diameter of the circular diameter-measuring through holes is enlarged in equal proportion. The right arm of piece A is provided with a fine bone rasp and a coarse bone rasp, and the bottoms of the left arm of piece A and the right arm of A are respectively provided with a quincunx cone-shaped hole and a hexagonal cone-shaped hole.

In the preferred solution: the connecting handle of the A part is provided with a steel wire twisting through hole, a large plum blossom-shaped wrench hole and a gourd hole, and the top end of the connecting handle of the A part is set as a universal sleeve for a tapered hexagonal nut.

In the preferred solution: the left arm of part B and the right arm of part B are respectively longitudinally arranged with six triangular tail threaded needle wrench through holes and six square tail threaded needle wrench through holes, and the triangular tail threaded needle wrench through holes The diameter of the through hole of the wrench and the square tail threaded needle wrench are reduced in equal proportions, and the bottoms of the left arm of the B piece and the right arm of the B piece are respectively provided with a "ten" bone screw drill and a "one" bone screw drill, Both the "ten" shaped bone screw chisel and the "one" shaped bone screw chisel are equipped with nail-holding anti-slip sleeves with C-shaped notches, and B scale marks are provided on the left arm of the B piece and the right arm of the B piece.

In the preferred solution: the connecting handle of the B part is provided with a small bone hole sounder, and the small bone hole sounder includes a B indicator needle, a B slider, a small bone hole measuring probe and a B reset Spring, the B indicator needle is set on the B slider, one end of the B slider abuts against the tail end of the small bone hole measuring probe, and the B indicator needle is exposed on the B slider. push the B indicator needle to make the small bone hole measuring probe protrude from the B connecting handle, and the small bone hole measuring probe can return through the B return spring. shrink into the connecting handle of the B part.

In the preferred solution: the left arm of the C part and the right arm of the C part are respectively longitudinally arranged with six rectangular tail threaded needle wrench through holes and six semicircular tail threaded needle wrench through holes, and the rectangular corner tail threaded needle wrench through holes The apertures of the through hole and the through hole of the semicircular tail threaded needle wrench are reduced in equal proportions, and the bottoms of the left arm of the C part and the right arm of the C part are respectively provided with a rectangular tapered hole and a semicircular tapered hole. There are C scale marks on the left arm of the C piece and the right arm of the C piece.

In the preferred solution: the connecting handle of the C part is provided with a large bone hole sounder, and the large bone hole sounder includes a C indicator needle, a C slider, a large bone hole measuring probe and a C reset Spring, the C indicator needle is set on the C slider, one end of the C slider abuts against the tail end of the large bone hole measuring probe, and the C indicator needle is exposed on the C push the C indicator needle to make the large bone hole measuring probe protrude from the C connecting handle, and the large bone hole measuring probe can return through the C return spring. Shrink into the connecting handle of the C piece.

In a preferred solution: the needle end of the large bone hole measuring probe is provided with a steel wire guiding part, and the steel wire guiding part includes a V-shaped groove arranged at the needle tip of the large bone hole measuring probe and a The oval pinhole hole at the needle position of the large bone hole measuring probe.

In the preferred solution: the tops of the connecting handle of the C part and the connecting handle of the D part are respectively provided with a small bone drill key and a large bone drill key, and the central axis of the top of the small bone drill key and the large bone drill key The positions are respectively provided with a small positioning core and a large positioning core, and the small positioning core and the large positioning core are set as hollow hexagonal bone screw chisels.

In the preferred solution: the left arm of the D part is provided with a D scale mark and a hexagonal nut stepped wrench hole, the right arm of the D part is provided with a protractor, and the connecting handle of the D part is longitudinally arranged with six hexagonal Nut pull holes, the apertures of the hexagon nut pull holes are enlarged in equal proportions, and the bottoms of the left arm of the D piece and the right arm of the D piece are respectively provided with square cone-shaped holes and triangular cone-shaped holes.

Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

The utility model is provided with parts A, B, C and D which are connected to each other in a crawler type, and the parts A and D can be detachably fastened together, and at the same time, a universal hex nut is integrated on the part A Wrench, universal hexagonal nut socket, thick and fine bone file, caliper, wire straightener, wire twister and other functions; large and small bone drill keys are integrated on parts B, C and D, Universal Thread Needle Wrench in various shapes, Universal Bone Screw Drill, Cannulated Hex Bone Screw Drill, Large and Small Bone Hole Sounders, Wire Guide, Bone Screw Holder, Drill Guide, Scales With functions such as a ruler and a protractor, the crawler-type multifunctional intraosseous fixation loader composed of parts A, B, C and D has the advantages of multi-purpose, compact, portable and easy to store. Helps improve surgical quality and efficiency. It is especially suitable for medical teams to go to grassroots medical tours, emergency pre-hospital treatment, emergency rescue and disaster relief, and field surgery.

Description of drawings

Fig. 1 is the structural representation that A part, B part, C part and D part are connected to each other in the utility model;

Fig. 2 is the structural representation of the connection of A part and B part shown in Fig. 1;

Fig. 3 is a structural schematic diagram of the connection between part C and part D shown in Fig. 1;

Fig. 4 is a structural schematic diagram of the snap-fitting of part A and part D shown in Fig. 1 .

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Wherein Fig. 1 has shown A part, B part among the utility model, the structure schematic diagram that C part and D part are interconnected. As shown in Figure 1, the utility model is a crawler-type multifunctional intraosseous fixation loader, which includes four sections A 100, B 200, C 300 and D which are all arranged in an inverted "Y" shape. 400, A part 100, B part 200, C part 300 and D part 400 are crawler-type connected through the pin shaft 50. A part 100 comprises A part left arm 110, A part right arm 120, and the A part connecting handle 130 arranged on the central axis of the A part left arm 110 and the A part right arm 120 connecting portion, the upper left side of the A part connecting handle 130 There is a snap ring gap 132 on the side wall; the B piece 200 includes the B piece left arm 210, the B piece right arm 220, and the B piece connecting handle arranged above the central axis of the connecting part of the B piece left arm 210 and the B piece right arm 220 230, the B part connecting handle 230 protrudes into the space clamped by the A part left arm 110 and the A part right arm 120; the C part 300 includes the C part left arm 310 and the C part right arm 320, and is arranged on the C part left 310 and the C piece connecting handle 330 above the central axis of the right arm 320 of C piece, the C piece connecting handle 330 protrudes into the space clamped by the B piece left arm 210 and the B piece right arm 220; D piece 400 includes D piece Left arm 410 and D part right arm 420, and the D part connecting handle 430 that is arranged on the D part left arm 410 and D part right arm 420 joint axis above, D part connecting handle 430 protrudes to C part left arm 310 and In the space clamped by the right arm 320 of part C, the inner side of the left arm 410 of part D is correspondingly provided with a snap ring bumper 414, and the position of the snap ring bumper 414 is set corresponding to the position of the snap ring notch 132, and the connecting handle 130 of part A passes through the snap spring The notch 132 is detachably clipped and fitted in the space clamped by the left arm 410 of the D piece and the right arm 420 of the D piece.

As shown in Figure 2, the A scale mark 111 and eight circular diameter-measuring through-holes 112 arranged at intervals in the longitudinal direction are arranged on the left arm 110 of the A-piece. The right arm 120 of piece A is provided with a fine bone rasp part 122 and a coarse bone rasp part 121, and the bottoms of the left arm 110 of part A and the right arm 120 of part A are respectively provided with a quincunx-shaped conical hole 113 and a hexagonal conical hole 123 . A part connecting handle 130 is provided with a steel wire twisted through hole 133, a large plum blossom-shaped pull hole 131 and a gourd hole 135, and the steel wire twisted through hole 133 is set to 4 and arranged in the shape of "eight". The top end of the connecting handle 130 of the A piece is set as a universal sleeve 134 for a tapered hexagonal nut.

As shown in Figure 2, the left arm 210 of the B part and the right arm 220 of the B part are respectively longitudinally arranged with six triangular tail threaded needle wrench through holes 212 and six square tail threaded needle wrench through holes 221, and the triangular tail threaded needle wrench through holes 221. The apertures of the hole 212 and the through hole 221 of the square tail threaded needle wrench are reduced in equal proportions, and the bottoms of the left arm 210 of the B part and the right arm 220 of the B part are respectively provided with a "ten" bone screw chisel 213 and a "one" bone screw. Screw chisel 222, "ten" bone screw chisel 213 and "one" bone screw chisel 222 are all equipped with nail-holding anti-slip sleeves 214 with C-shaped notches, and the left arm 210 of part B and the right arm 220 of part B are all provided with There is a B scale mark 211. A small bone hole sounder is arranged in the connecting handle 230 of the B part, and the small bone hole sounder includes a B indicator needle 231, a B slider 232, a small bone hole probe 233 and B return spring 234, B indicator pin 231 is arranged on B slider 232, one end of B slider 232 abuts against the tail end of small bone hole measuring probe 233, B indicator pin 231 is exposed on B part connecting handle 230 Pushing the B indicator needle 231 on the outer wall of the B-hole can make the small bone hole measuring probe 233 extend out of the B-piece connecting handle 230, and the small-size bone hole measuring probe 230 can be retracted to the B-piece connecting handle through the B return spring 234 230 in.

As shown in Figure 3, on the C part left arm 310 and the C part right arm 320, six rectangular tail threaded needle wrench through holes 312 and six semicircular tail threaded needle wrench through holes 321 are longitudinally arranged respectively, and the rectangular corner tail threaded needle The apertures of the wrench through hole 312 and the semicircular threaded needle wrench through hole 321 are reduced in equal proportions, and the bottoms of the left arm 310 of the C part and the right arm 320 of the C part are respectively provided with a rectangular tapered hole 313 and a semicircular tapered hole. The hole 322 , the left arm 310 of the C piece and the right arm 320 of the C piece are all provided with a C scale mark 311 . The C part connecting handle 330 is provided with a large bone hole sounder, and the large bone hole sounder includes a C indicator needle 331, a C slider 332, a large bone hole measuring probe 333 and a C return spring 334, C The indicator pin 331 is arranged on the C slide block 332, and one end of the C slide block 332 abuts against the tail end of the large bone hole measuring probe 333, and the C indicator pin 331 is exposed on the outer side wall of the C piece connecting handle 330, and the push The C indicator needle 331 can make the large bone hole measuring probe 333 stretch out of the C piece connecting handle 330 , and the large bone hole measuring probe 333 can be retracted into the C piece connecting handle 330 through the C return spring 334 . The needle end of the large bone hole measuring probe 333 is provided with a steel wire guiding part, and the steel wire guiding part includes a V-shaped groove 3331 arranged at the needle tip of the large bone hole measuring probe 333 and a V-shaped groove 3331 arranged at the large bone hole measuring probe 333. The oval pinhole hole 3332 at the needle position of the probe 333 .

As shown in Fig. 3 and Fig. 4, the tops of the connecting handle 330 of the C part and the connecting handle 430 of the D part are respectively provided with a small bone drill key 335 and a large bone drill key 431, and a small bone drill key 335 and a large bone drill The central axis of the top of the key 431 is respectively provided with a small positioning core 3351 and a large positioning core 4311, and the small positioning core 3351 and the large positioning core 4311 are respectively set as hollow small hexagonal bone screw chisels and large hexagonal bone screws. Screw chisel. The left arm 410 of the D piece is provided with a D scale mark 411 and the hexagonal nut stepped hole 412, the right arm 420 of the D piece is provided with a protractor 421, and the D piece connecting handle 430 is longitudinally arranged with six hexagonal nut wrench holes 432 , the aperture of the hex nut wrench hole 432 is enlarged in equal proportion, and the bottoms of the left arm 410 of the D piece and the right arm 420 of the D piece are respectively provided with a square tapered hole 413 and a triangular tapered hole 422 .

During use, the user can separate the fitting between the A piece 100 and the D piece 400 by pressing the A piece connecting handle 130 from the snap ring bumper 414, so that the A piece 100, the B piece 200, and the C piece can be used. The various functions on the piece 300 and the D piece 400, wherein the hand push indicator needle 331 pushes the large bone hole measuring probe 333 out of the C piece connecting handle 330, so that the needle end of the large bone hole measuring probe 333 is small The small positioning core 3351 protrudes from the bone hole, and is inserted into the bone hole, so that the needle tip hook on the needle end is hooked to the bone hole exit, and the small size positioning core 3351 is against the bone hole entrance, and the depth of the bone hole is read from the C indicator needle scale mark 3311. This is to select the length of the bone screw, let go after the test, and the C return spring 334 makes the large bone hole measuring probe 333 automatically reset back in the C piece connecting handle 330, so as to prevent the needle point from being exposed outside and damaging or stabbing others. In addition, the V-shaped tooth groove 3331 and the oval needle hole 3332 of the steel wire guiding part can guide the steel wire, wire or wire saw blade to pass through the bone hole quickly during the operation. In use, the corresponding diameter can be measured by inserting a bone circular needle, bone screw, three-edged needle, drill bit, tap, bone plug, steel wire, etc. into a suitable diameter measuring circular through hole 112 . During use, fasten the bone screw with the anti-slip sleeve 214 on the "one"-shaped bone screw drill head 222 or the "ten"-shaped bone screw drill head 213, and the operator can screw it in quickly and smoothly independently. screw without using the bone screw holder. , Nail-holding anti-slip sleeve 214 can prevent the head end of the chisel from being damaged at ordinary times, and can hold the screw and stabilize the direction of the screw during the operation, preventing the screw head groove from slipping and twisting the soft tissue, and can also prevent the chisel head from piercing the surgeon's gloves . The scale marks 111 and 211 can measure the length during the operation, and the fine bone rasp part 122 and the coarse bone rasp part 121 can be used to repair the burrs at the end of the bone; insert the twisted steel wire into the gourd-shaped hole 135 and quickly pull it once to straighten it; The two ends of the steel wires that have tied the bone blocks are respectively inserted into the 4 steel wire twisting holes 133 arranged in the shape of "eight" in the far section of the main body, which have the function of a steel wire twisting device. The 100 steel wire of the tight part A is stuck by the steel wire hole, and then the A part 100 is rotated evenly, and the steel wire is twisted into a twist shape. When the twisting force between the two steel wires is greater than the friction force of the steel wire hole on the steel wire, the steel wire While being twisted evenly, the side slides out from the steel wire hole until the twisting is completed, neither breaking the steel wire nor twisting the soft tissue; in addition, the protractor 421 can measure the angle of the skin flap or osteotomy during the operation.

To sum up, the crawler-type multifunctional internal fixation loader is provided with the A part 100, the B part 200, the C part 300 and the D part 400 which are connected to each other in the form of a crawler, and the A part 100 and the D part 400 are in turn It can be detachably fastened together, and at the same time integrates functions such as a universal hexagonal nut wrench, a universal hexagonal nut sleeve, a coarse and fine grain bone file, a caliper, a steel wire straightener, and a steel wire twister on the A part 100; Part B 200, Part C 300 and Part D 400 integrate large and small bone drill keys, universal threaded needle wrenches in various shapes, universal bone screw drills, hollow hexagonal bone screw drills, large and small bone drills Hole depth finder, wire guide, bone screw holder, drilling guide, scale and protractor, etc., make the crawler type composed of A piece 100, B piece 200, C piece 300 and D piece 400 more The functional bone internal fixation loader has the advantages of multi-purpose, small and portable, and easy to organize and store. Helps improve surgical quality and efficiency. It is especially suitable for medical teams to go to grassroots medical tours, emergency pre-hospital treatment, emergency rescue and disaster relief, and field surgery.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of All changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (10)

1. A crawler-type multifunctional intraosseous fixation loader, comprising 4 parts A, B, C and D which are all arranged in an inverted "Y"-shaped structure, characterized in that: The parts A, B, C and D are crawler-type connected through pin shafts; The A piece includes a left arm of the A piece and a right arm of the A piece connected in the shape of "冂", and a connecting handle of the A piece arranged above the central axis of the connecting part of the left arm of the A piece and the right arm of the A piece. There is a circlip notch on the upper left side wall of the connecting handle of part A; The B piece includes the B piece left arm and the B piece right arm connected in the shape of "冂", and the B piece connecting handle arranged above the central axis of the connecting part of the B piece left arm and the B piece right arm. The connecting handle of part B protrudes into the space clamped by the left arm of part A and the right arm of part A; The C piece includes a C piece left arm and a C piece right arm connected in the shape of a "冂", and a C piece connecting handle arranged above the central axis of the connecting part of the C piece left arm and the C piece right arm. The connecting handle of part C protrudes into the space clamped by the left arm of part B and the right arm of part B; The D piece includes the D piece left arm and the D piece right arm connected in the shape of "冂", and the D piece connecting handle arranged above the central axis of the connecting part of the D piece left arm and the D piece right arm, the The connecting handle of piece D protrudes into the space clamped by the left arm of piece C and the right arm of piece C, and the inner side of the left arm of piece D is correspondingly provided with a snap ring bumper, and the position of the snap ring bumper corresponds to the The position of the notch of the circlip of the A part is set, and the connecting handle of the A part is detachably clamped and fitted in the space clamped by the left arm of the D part and the right arm of the D part through the notch of the circlip. 2. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 1, characterized in that: the left arm of the A part is provided with an A scale mark and eight circular diameter measuring channels arranged at intervals in the longitudinal direction. hole, the diameter of the circular caliper through hole is enlarged in equal proportions, the right arm of the A piece is provided with a fine bone rasp part and a coarse bone rasp part, and the left arm of the A part and the right arm of the A part There are quincunx cone-shaped holes and hexagonal cone-shaped holes respectively at the bottom of the bottom. 3. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 1, characterized in that: the connecting handle of the A part is provided with a steel wire twisting through hole, a large quincunx-shaped wrench hole and a gourd hole, so that The top end of the connecting handle of part A is set as a universal sleeve for a tapered hexagonal nut. 4. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 1, characterized in that: the left arm of the B part and the right arm of the B part are respectively longitudinally arranged with six triangular tail threaded needle wrench through holes and six square tail threaded needle wrench through holes, the apertures of the triangular tail threaded needle wrench through hole and the square tail threaded needle wrench through hole are set in equal proportions, and the bottoms of the left arm of the B part and the right arm of the B part are respectively There are "ten" bone screw drills and "one" bone screw drills, and the "ten" bone screw drills and "one" bone screw drills are equipped with nail-holding anti-slip sleeves with C-shaped notches , the left arm of the B part and the B right arm are provided with a B scale mark. 5. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 1, characterized in that: a small bone hole sounder is arranged in the connecting handle of the B part, and the small bone hole depth sounder The device includes a B indicator pin, a B slider, a small bone hole measuring probe and a B return spring, the B indicator pin is set on the B slider, and one end of the B slider is connected to the small bone The tail end of the hole measurement probe is abutted, and the B indicator needle is exposed on the outer wall of the connecting handle of the B piece, and pushing the B indicator needle can make the small bone hole measurement probe extend out of the B piece connection Outside the handle, the small bone hole measuring probe can be retracted into the connecting handle of the B part through the B return spring. 6. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 1, characterized in that: the left arm of the C part and the right arm of the C part are respectively longitudinally arranged with six rectangular tail threaded needle wrench through holes and six semicircular tail threaded needle wrench through holes, the apertures of the rectangular corner tail threaded needle wrench through holes and the semicircular tail threaded needle wrench through holes are set in equal proportions, the left arm of the C part and the right part of the C part The bottoms of the arms are respectively provided with a rectangular tapered hole and a semicircular tapered hole, and the left arm of the C piece and the right arm of the C piece are provided with a C scale mark. 7. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 1, characterized in that: a large bone hole sounder is arranged in the connecting handle of the C part, and the large bone hole depth sounder The device includes a C indicator pin, a C slider, a large bone hole measuring probe and a C return spring, the C indicator pin is set on the C slider, and one end of the C slider is connected to the large bone The tail end of the hole measurement probe is abutted, and the C indicator needle is exposed on the outer wall of the connecting handle of the C piece. Pushing the C indicator needle can make the large bone hole measurement probe extend out of the C piece connection Outside the handle, the large bone hole measuring probe can be retracted into the connecting handle of the C piece through the C return spring. 8. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 7, characterized in that: the needle end of the large bone hole measuring probe is provided with a steel wire guide, and the steel wire guide includes a set The V-shaped tooth groove at the needle point of the large bone hole measuring probe and the oval needle hole arranged at the needle point of the large bone hole measuring probe. 9. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 1, characterized in that: the top ends of the C-piece connecting handle and the D-piece connecting handle are respectively provided with a small bone drill key and a large bone drill key. Drill key, the top central axis of the small bone drill key and the large bone drill key are respectively provided with a small positioning core and a large positioning core, and the small positioning core and the large positioning core are set as hollow hexagonal Bone screw chisel. 10. A crawler-type multifunctional intraosseous fixation loader as claimed in claim 1, characterized in that: the left arm of the D part is provided with a D scale mark and a hexagonal nut stepped wrench hole, and the D part The right arm is provided with a protractor, and the connecting handle of the D piece is longitudinally arranged with six hexagonal nut wrench holes. The apertures of the hexagonal nut wrench holes are enlarged in equal proportion. The bottoms of the arms are respectively provided with square cone-shaped holes and triangular cone-shaped holes.