3D printing guide plate suite for assisting minimally invasive treatment of tibial plateau collapse fracture

Abstract

The utility model provides a 3D printing guide plate suite for assisting in minimally invasive treatment of tibial plateau collapse fracture, and relates to orthopedic minimally invasive instruments. The body surface calibration positioner is fixed on the guide plate, and a first positioning hole is formed in the body surface calibration positioner; the imbedding opening is formed in the guide plate, the imbedding opening is used for detachably arranging a guide needle outer layer sleeve, the guide needle outer layer sleeve is used for allowing an expansion unit to enter the position below a fracture collapse part, and the expansion unit pushes a collapsed bone block to a normal position; the nail arranging positioner is detachably arranged on the guide plate, a nail arranging positioning hole is formed in the nail arranging positioner, a third kirschner wire is inserted into the nail arranging positioning hole so as to fix a collapsed bone block at a normal position, 3D simulation reduction is carried out before an operation, the personalized guide plate is customized, and a needle inserting point is designed, so that the number of times of perspective in the operation is obviously reduced, and the probability that the bone block is damaged is reduced; operation time is shortened, and puncture times are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to orthopedics minimally invasive instrument especially to a 3D printing guide plate kit for assisting minimally invasive treatment of tibial plateau collapse fracture. BACKGROUND

[0002] Tibial plateau fracture is a fracture occurring in the proximal tibial articular surface, usually caused by compression violence such as impact or falling of the knee joint under varus / valgus violence, accounting for 1.7% of adult fractures. This type of fracture is a typical intra-articular fracture, and its treatment and prognosis will have an important impact on the function of the knee joint. The injury mechanism and clinical manifestations of tibial plateau fracture are complex, and there are many types. Schatzker classification is the most widely used classification at present, which classifies tibial plateau fractures into six types based on X-ray manifestations:

[0003] Type I: simple lateral platform split fracture without joint surface collapse, accounting for 15.0% of tibial plateau fractures;

[0004] Type II: lateral platform split combined with depressed fracture with joint surface collapse, accounting for 23.2% of tibial plateau fractures;

[0005] Type III: simple lateral platform central compression fracture, accounting for 14.5% of tibial plateau fractures;

[0006] Type IV: medial tibial plateau fracture, accounting for 14.5% of tibial plateau fractures;

[0007] Type V: bilateral platform fracture, accounting for 12.0% of tibial plateau fractures;

[0008] Type VI: platform fracture with separation of metaphyseal and diaphyseal, accounting for 20.8% of tibial plateau fractures.

[0009] The treatment of tibial plateau fracture aims to restore the flatness, axial alignment, stability and activity function of the articular surface. Its treatment scheme has evolved from early plaster, traction external fixation to open reduction and internal fixation, with a qualitative leap. However, in order to pursue anatomical reduction, extensive exposure is often accompanied by unacceptable wound complications such as nonunion and infection, which forces scholars to explore better surgical strategies. With the continuous improvement of medical level and people's health consciousness, considering the objective surgical trauma and the needs of patients, combined with the concept of medical psychology and humanistic medicine, minimally invasive surgical treatment characterized by indirect reduction and small incision has gradually become the mainstream scheme.

[0010] The minimally invasive surgical treatment of tibial plateau fracture currently mainly relates to arthroscopic assisted minimally invasive treatment, double reverse traction minimally invasive treatment, balloon angioplasty minimally invasive treatment, and nail rod reduction minimally invasive treatment. These minimally invasive surgical schemes replace direct vision with intraoperative fluoroscopy, open a bone window at the tibial tuberosity level, and reset the collapsed articular surface through the counteraction principle of nail rods or balloons, without opening the joint capsule and without large incisions, so that extensive soft tissue dissection can be avoided, thereby reducing the incidence of soft tissue complications and accelerating postoperative recovery. However, due to the inability to cut and reset under direct vision, the reduction is difficult, repeated fluoroscopy is required, the operation time is prolonged, the patient and the operator are exposed to radiation, and there is currently no good solution to reduce the number of intraoperative fluoroscopy. Utility model content

[0011] The utility model provides a kind of 3D printing guide plate kit for assisting minimally invasive treatment tibial plateau collapse fracture, its purpose is to solve the problem of the reduction difficulty of the minimally invasive surgical treatment tibial plateau fracture, the multiple fluoroscopy, the increased radiation exposure of patient and operator at present stage.

[0012] In order to achieve the above purpose, the embodiment of the utility model provides a kind of 3D printing guide plate kit for assisting minimally invasive treatment tibial plateau collapse fracture, comprising:

[0013] The guide plate is used to be attached on the skin of the upper front of the patient's lower leg.

[0014] The body surface calibration positioner is fixed on the guide plate, and is positioned with the tibial tuberosity as a body surface mark. The body surface calibration positioner is provided with a first positioning hole penetrating through the body surface calibration positioner and the guide plate. The first positioning hole is provided with at least two.

[0015] The guide needle outer sleeve is used for the expansion unit to enter below the collapsed fracture site. The expansion unit pushes the collapsed bone block to the normal position.

[0016] The pin positioning device is detachably arranged on the guide plate. The pin positioning device is provided with a pin positioning hole penetrating through the pin positioning device and the guide plate. The pin positioning hole is used for the third Kirschner wire to be inserted to fix the collapsed bone block in the normal position.

[0017] Preferably, the expansion unit is a balloon module, which includes a guide needle inner sleeve for being detachably inserted into the guide needle outer sleeve, a ring chisel sleeve for being detachably inserted into the guide needle outer sleeve, a guide needle for being detachably inserted into the guide needle inner sleeve, and a balloon extendable into the ring chisel sleeve.

[0018] Preferably, the 3D printing guide plate set further comprises a balloon base Kirschner wire positioner detachably arranged on the guide plate, and a second positioning hole is arranged on the balloon base Kirschner wire positioner, the second positioning hole penetrates through the guide plate and the balloon base Kirschner wire positioner, and the second positioning hole is used for guiding a second Kirschner wire to be punched into the bone body below the balloon mold module.

[0019] Preferably, the second positioning hole is arranged in a plurality of first positioning holes arranged in a line.

[0020] Preferably, the expansion unit is a nail rod module, and the nail rod module comprises a guide needle inner layer sleeve, a ring chisel sleeve pipe and a nail rod.

[0021] The entering end of the guide needle inner layer sleeve has a first tip inclined surface (10a), the guide needle inner layer sleeve is detachably inserted into the guide needle outer layer sleeve, and the first tip inclined surface (10a) is downward;

[0022] The ring chisel pipe is detachably inserted into the guide needle inner layer sleeve.

[0023] The entering end of the nail rod has a second tip inclined surface (30a), the nail rod is detachably inserted into the ring chisel sleeve pipe, and the second tip inclined surface (30a) is parallel to the articular surface.

[0024] Preferably, the 3D printing guide plate set further comprises a bone grafting rod, which is detachably arranged in the ring chisel sleeve pipe and is used for tamping the allogeneic bone entering the ring chisel sleeve pipe.

[0025] Preferably, the plurality of row nail positioning holes are arranged in a honeycomb shape.

[0026] Preferably, the guide plate is made of 3D printing technology based on the tibial CT data of the patient.

[0027] The above scheme of the utility model has the following beneficial effects:

[0028] The application is used for assisting in minimally invasive treatment of tibial plateau collapse fracture, especially for balloon angioplasty minimally invasive treatment and nail rod reduction minimally invasive treatment, 3D simulation reduction is performed before operation, a personalized guide plate is customized, the needle entry point is designed in combination with individual factors of the patient, the difficulty of operation is reduced, the number of intraoperative fluoroscopy is obviously reduced, the operation time is shortened, the puncture times are reduced, and additional iatrogenic injury caused by repeated puncture and radiation exposure of the patient and the operator caused by repeated fluoroscopy are avoided.

[0029] Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0030] Fig. 1 is a schematic view of the present application;

[0031] Fig. 2 is a schematic view of the inner layer sleeve of the guide needle;

[0032] Fig. 3 is a schematic view of the bone graft rod.

[0033]

BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 1-guide plate, 2-surface calibration locator, 3-outer sleeve of guide needle, 4-dowel locator, 5-balloon base kirschner wire locator,

[0035] 10-inner layer sleeve of guide needle, 10a-first tip bevel, 20-ring chisel sleeve, 30-dowel, 30a-second tip bevel, 40-bone graft rod. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and advantages of the present application more clear, the following will be described in detail with reference to the drawings and specific embodiments.

[0037] As Figs. 1-3 shown, the embodiment of the present application provides a 3D printing guide plate kit for assisting minimally invasive treatment of tibial plateau collapse fracture, which comprises a guide plate 1, a surface calibration locator 2 and a dowel locator 4, wherein the shape of the guide plate 1 is the same as that of the lower leg, and the shape of the guide plate 1 is made by using existing CT technology, based on the CT data of the tibia of the patient, and is made by using 3D printing technology. The guide plate 1 is used to be attached to the skin on the front upper part of the lower leg of the patient. The aforementioned surface calibration locator 2 is arranged on the guide plate 1, and the surface calibration locator 2 is positioned with the tibial tuberosity as a surface marker, that is, when the guide plate 1 is attached to the skin on the front upper part of the lower leg, the surface calibration locator 2 is directly opposite the tibial tuberosity of the patient. The surface calibration locator 2 is fixedly arranged on the guide plate 1, and a first positioning hole arranged along the thickness direction of the surface calibration locator 2 is arranged on the surface calibration locator 2, the first positioning hole penetrates through the surface calibration locator 2 and the guide plate 1, and the first positioning hole is provided with two or more. The first positioning hole is used for the first kirschner wire to be punched into the tibia to stably fix the guide plate 1 at the upper end of the tibia.

[0038] A setting port is further arranged on the aforementioned guide plate 1, and the setting port is used for detachably mounting the outer sleeve of the guide needle 3. The outer sleeve of the guide needle 3 is used for assisting in establishing a working channel and guiding an expansion unit to the lower part of the collapsed part of the bone body, and the expansion unit pushes the collapsed bone block to the normal position.

[0039] The aforementioned row pin locator 4 is detachably arranged on the guide plate 1, the row pin locator 4 is provided with a row pin locating hole in the thickness direction of the row pin locator 4, the row pin locating hole penetrates the row pin locator 4 and the guide plate 1, and the row pin locating hole is used for inserting a third Kirschner wire into a bone body to fix a collapsed bone block in a normal position. The normal position here refers to the position of the collapsed bone block before being damaged.

[0040] In one embodiment, the expansion unit is a balloon module, the balloon module includes a needle inner sleeve 10, a ring chisel sleeve 20, and a guide needle, a balloon, wherein the needle inner sleeve 10 is arranged in the guide needle outer sleeve 3 in a detachable manner, and the insertion end of the needle inner sleeve has a first sharp end slope 10a. The ring chisel sleeve 20 is arranged in the guide needle outer sleeve 3 in a detachable manner, the guide needle is arranged in the needle inner sleeve 10 in a detachable manner, and the balloon is arranged in the ring chisel sleeve 20.

[0041] When the balloon module is used as the expansion unit, the 3D printed guide plate kit for assisting in minimally invasive treatment of tibial plateau collapse fracture further includes a balloon base Kirschner wire locator 5, the balloon base Kirschner wire locator 5 is arranged on the guide plate 1 in a detachable manner, the balloon base Kirschner wire locator 5 is provided with a second locating hole in the thickness direction of the balloon base Kirschner wire locator 5, the second locating hole penetrates the guide plate 1 and the balloon base Kirschner wire locator 5, and the second locating hole is used for a second Kirschner wire to be punched into a bone body, and the position of the second Kirschner wire punched into the bone body is located below the balloon module.

[0042] Preferably, the second locating hole is provided with a plurality of second locating holes arranged in a straight line, and a plurality of second Kirschner wires correspondingly arranged in parallel on the tibial cross section. It can be understood that by controlling the insertion depth of the second Kirschner wire, a bowl-shaped arrangement can also be formed. The punching of the second Kirschner wire can realize the foundation type bottoming, and provide support for the expansion tension of the balloon expansion to the articular surface to push the collapsed bone block to the normal position.

[0043] It should be noted that in this application, the length direction of the tibia is the longitudinal direction, and the direction perpendicular to the length of the tibia is the transverse direction.

[0044] In another embodiment, the expansion unit is a nail rod module, the nail rod module comprises a guide pin inner sleeve 10, a ring chisel sleeve 20, a nail rod 30 and a guide pin, wherein the entering end of the guide pin inner sleeve 10 has a first tip inclined surface 10a, the guide pin inner sleeve 10 is detachably inserted into the guide pin outer sleeve 3 and contacts the bone cortex of the tibia below the tibial collapse, and the first tip inclined surface 10a faces downward. The ring chisel sleeve 20 is inserted into the guide pin inner sleeve 10, and the end of the ring chisel sleeve 20 exposed outside the guide pin inner sleeve 10 is struck. After the striking, the ring chisel sleeve 20 penetrates the bone cortex, the nail rod 30 is inserted into the ring chisel sleeve 20, and the entering end of the nail rod 30 has a second tip inclined surface 30a, which is parallel to the articular surface when the nail rod 30 is inserted into the ring chisel sleeve. By striking the nail rod 30 again, the bone block chiseled by the ring chisel sleeve 20 is lifted to the lower side of the collapsed bone block, and as the ring chisel sleeve 20 continues to move, the collapsed bone block moves to the articular surface under the action of the chiseled bone block.

[0045] In the foregoing embodiment, the 3D printed guide plate kit for assisting minimally invasive treatment of tibial plateau collapse fracture further comprises a bone graft rod 40, which is detachably inserted into the ring chisel sleeve 20, and the bone graft rod 40 is used to tamp the allogeneic bone added into the ring chisel sleeve 20.

[0046] Preferably, the plurality of pin positioning holes are arranged in a honeycomb shape. It can be understood that the third Kirschner wire can be inserted into the collapsed bone block through any pin positioning hole, and by arranging the pin positioning holes in a honeycomb shape, the relative position of the third Kirschner wire and the collapsed bone block can be adjusted to ensure that the third Kirschner wire can fix the collapsed bone block.

[0047] When the balloon module is used as an expansion unit, the following steps are performed:

[0048] 1. Obtain the basic situation of the patient: for a Schatzker type III fracture patient, two 2.5mm first Kirschner wires are inserted into the tuberosity of the affected side of the tibia under local anesthesia for positioning, and then the tibia of the patient is scanned by CT.

[0049] 2. Make the guide plate 1 and the tibia model: make the tibia model and design the guide plate 1 based on the results of the CT scan, assemble the tibia model and the guide plate 1 before the operation, ensure that the guide plate 1 can be attached to the affected limb of the patient, then clean, sterilize and wait for use.

[0050] When designing the guide plate 1, the installation positions of the body surface calibration positioner 2, the entry port, the pin positioning device 4 and the balloon base Kirschner wire positioner 5 on the guide plate 1 are included.

[0051] 3. Installation of the guide plate 1 : The patient is under general anesthesia during the operation, lying on the operating table, and is disinfected and covered with a sheet. The guide plate 1 is attached to the skin of the lower leg and the first Kirschner wire is inserted into the first positioning hole. The row pin locator 4 and the balloon base Kirschner wire locator 5 are fixed to the side of the guide plate 1 away from the skin.

[0052] After the guide plate 1 is fixed, an incision is made in the skin, and the guide needle outer sleeve 3 is installed at the incision. At the same time, the guide needle inner sleeve 10 is inserted into the guide needle outer sleeve 3, and the first sharp end 10a of the guide needle inner sleeve 10 is directed downward. The entry end of the guide needle inner sleeve 10 enters the body through the incision and stops when it contacts the bone cortex of the tibia.

[0053] 4. Establishment of the working channel: The guide needle is driven along the guide needle inner sleeve 10, and the guide needle is confirmed to have passed through the bone cortex and to be located 2-5 mm below the fracture collapse site under fluoroscopy. After the guide needle is driven, the guide needle inner sleeve 10 is removed, and the ring chisel sleeve 20 is inserted into the guide needle outer sleeve 3 along the guide needle.

[0054] 5. Foundation-type underpinning: A plurality of second Kirschner wires are driven into the tibia along the second positioning holes of the balloon base Kirschner wire locator 5, and the second Kirschner wires are driven below the guide needle. In the transverse view of the tibia, the second Kirschner wires are parallel or arranged like a bowl bottom, achieving foundation-type underpinning.

[0055] 6. Placement of the balloon and reduction: The bone tunnel diameter is enlarged with a hollow drill along the guide needle direction, and the guide needle is withdrawn after the bone tunnel diameter is large enough to accommodate the balloon. At the same time, the balloon is inserted into the ring chisel sleeve 20, and the radiographic markers at the proximal and distal ends of the balloon are confirmed to have passed through the ring chisel sleeve 20 and to be located below the fracture collapse site. The balloon and the pressure device are connected, and the balloon is slowly expanded. The volume and pressure of the balloon are monitored during the expansion process, and the collapsed bone fragments are confirmed to move towards the articular surface until they reach the articular surface.

[0056] 7. Fixation of the collapsed bone fragments: When the collapsed bone fragments move to the articular surface, a plurality of third Kirschner wires are driven along the row pin positioning holes of the row pin locator 4 to fix the reduced bone fragments. Under fluoroscopy, the third Kirschner wire insertion route is confirmed to be safe and effective. If the third Kirschner wire position deviates, the third Kirschner wire insertion route is adjusted using the honeycomb-shaped row pin positioning holes. After the third Kirschner wire position meets the requirements, the third Kirschner wire is removed, and a cannulated screw is driven along the third Kirschner wire insertion route.

[0057] 8. Bone grafting: Allograft bone is implanted into the ring chisel sleeve 20, and the allograft bone in the ring chisel sleeve 20 is compacted using the bone grafting rod 40.

[0058] 9. Install anatomical plate: remove the guide plate 1, make another minimally invasive incision on the front and lateral side of the knee, insert the locking anatomical plate through the skin for overall fixation, remove the first Kirschner wire and the second Kirschner wire, suture the wound, cover the wound with sterile dressing, and the operation is completed.

[0059] When the nail rod 30 group is used as an expansion unit, the following steps are taken:

[0060] 1. Obtain the basic information of the patient: for patients with Schatzker type III fractures, two 2.5mm first Kirschner wires are inserted into the tuberosity of the affected tibia under local anesthesia for positioning, and then the patient's tibia is scanned by CT.

[0061] 2. Make the guide plate 1 and the tibia model: make the tibia model and design the guide plate 1 based on the results of the CT scan, assemble the tibia model and the guide plate 1 before the operation, make sure that the guide plate 1 can be attached to the patient's affected limb, then clean, sterilize and wait for use.

[0062] When designing the guide plate 1, the installation positions of the surface calibration locator 2, the entry port, the nail row locator 4 and the balloon base Kirschner wire locator 5 on the guide plate 1 are included.

[0063] 3. Install the guide plate 1: the patient is under general anesthesia during the operation, lies flat on the operating table, is sterilized and covered with a sheet, and the guide plate 1 is attached to the skin of the lower leg and the first Kirschner wire is inserted into the first positioning hole. In turn, the nail row locator 4 and the balloon base Kirschner wire locator 5 are fixed to the side of the guide plate 1 away from the skin.

[0064] After the guide plate 1 is fixed firmly, an incision is made on the skin, the incision is opposite the position of the entry port, the guide needle outer sleeve 3 is installed at the entry port, the guide needle inner sleeve 10 is inserted into the guide needle outer sleeve 3, and the first sharp end of the guide needle inner sleeve 10 is downward, and the entry end of the guide needle inner sleeve 10 stops when it contacts the bone cortex of the tibia.

[0065] 4. Establish a working channel: insert the ring chisel sleeve 20 into the guide needle inner sleeve 10 and hammer the ring chisel sleeve 20 to make the ring chisel sleeve 20 pass through the bone cortex; insert the nail rod 30 into the ring chisel sleeve 20, the second sharp end of the nail rod 30 is parallel to the articular surface, hit the nail rod 30 to make it continue to move along the axial direction of the ring chisel sleeve 20, and under the action of the second sharp end 30a, the bone block chiseled by the ring chisel sleeve 20 is pushed to the lower side of the collapsed bone block, and the collapsed bone block is lifted to the articular surface.

[0066] 5. Fix the collapsed bone block: when the collapsed bone block moves to the articular surface, punch several third Kirschner pins along the row pin positioning hole of the row pin positioning device 4 to fix the reduced bone block. Use intraoperative fluoroscopy to confirm that the third Kirschner pin insertion line is safe and effective, and if the third Kirschner pin position deviates, use the honeycomb row pin positioning hole to fine-tune the third Kirschner pin insertion line. After the third Kirschner pin position meets the requirements, remove the third Kirschner pin and punch a cannulated screw along the third Kirschner pin insertion line.

[0067] 6. Bone grafting: implant allogeneic bone into the ring chisel sleeve 20, and use the bone grafting rod 40 to compact and tamp the allogeneic bone in the ring chisel sleeve 20.

[0068] 7. Install anatomical steel plate: remove the guide plate 1, make another minimally invasive incision on the anterior-lateral side of the knee, insert the locking anatomical steel plate through the skin to fix it as a whole, remove the first Kirschner pin and the second Kirschner pin, suture the wound, cover the wound with sterile dressing, and the operation is completed.

[0069] The above is the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A 3D printed guide kit to assist minimally invasive treatment of tibial plateau collapse fractures, characterized in that, The 3D printing guide plate kit comprises: a guide plate (1) which is shaped the same as the shape of the lower leg, and is used to fit on the skin of the front upper part of the lower leg of a patient; a body surface calibration locator (2) fixed on the guide plate (1), which is positioned with the tibial tuberosity as a body surface marker, and is provided with a first positioning hole penetrating through the body surface calibration locator (2) and the guide plate (1), and the first positioning hole is provided with at least two; a guide needle outer sleeve (3) which is detachably arranged on the guide plate (1), and is used for the expansion unit to enter the lower part of the collapsed fracture site, and the expansion unit pushes the collapsed bone block to the normal position; a row pin locator (4) which is detachably arranged on the guide plate (1), and is provided with a row pin positioning hole penetrating through the row pin locator (4) and the guide plate (1), and the row pin positioning hole is used for the third Kirschner wire to be inserted to fix the collapsed bone block in the normal position.

2. The 3D printed guide kit for assisting minimally invasive treatment of tibial plateau collapse fractures of claim 1, wherein: The expansion unit is a balloon module, which comprises a guide needle inner sleeve (10) which is detachably inserted into the guide needle outer sleeve (3), a ring chisel sleeve (20) which is detachably inserted into the guide needle outer sleeve (3), a guide needle which is detachably inserted into the guide needle inner sleeve (10), and a balloon which can be inserted into the ring chisel sleeve (20).

3. The 3D printed guide kit for assisting minimally invasive treatment of tibial plateau collapse fractures of claim 2, wherein: The 3D printing guide plate kit further comprises a balloon base Kirschner wire locator (5) which is detachably arranged on the guide plate (1), and is provided with a second positioning hole penetrating through the guide plate (1) and the balloon base Kirschner wire locator (5), and the second positioning hole is used for guiding the second Kirschner wire to be punched into the bone body below the balloon module.

4. The 3D printed guide kit for assisting minimally invasive treatment of tibial plateau collapse fractures of claim 3, wherein: The second positioning hole is provided with a plurality of second positioning holes which are arranged in a straight line.

5. The 3D printed guide kit for assisting minimally invasive treatment of tibial plateau collapse fractures of claim 1, wherein: The expansion unit is a nail rod module, which comprises a guide needle inner sleeve (10), a ring chisel sleeve (20), and a nail rod (30), an entering end of the guide needle inner sleeve (10) has a first tip inclined surface (10a), the guide needle inner sleeve (10) is detachably inserted into the guide needle outer sleeve (3) and the first tip inclined surface (10a) faces downward; the ring chisel sleeve (20) is detachably inserted into the guide needle inner sleeve (10); an entering end of the nail rod (30) has a second tip inclined surface (30a), the nail rod (30) is detachably inserted into the ring chisel sleeve (20) and the second tip inclined surface (30a) is parallel to the articular surface.

6. The 3D printed guide kit for assisting minimally invasive treatment of tibial plateau collapse fractures of claim 2 or 5, wherein: The 3D printing guide plate kit further comprises a bone graft rod (40) which is detachably arranged in the ring chisel sleeve (20), and is used for tamping the allogeneic bone entering the ring chisel sleeve (20).

7. The 3D printed guide kit for assisting minimally invasive treatment of tibial plateau fracture according to claim 1, wherein: The row pin positioning hole is provided with a plurality of row pin positioning holes which are arranged in a honeycomb shape.

8. The 3D printed guide kit for assisting minimally invasive treatment of tibial plateau collapse fractures of claim 1, wherein: The guide plate (1) is made of 3D printing technology based on the CT data of the tibia of the patient.

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