CN211087701U

CN211087701U - A baffle for semilunar plate operation exercise

Info

Publication number: CN211087701U
Application number: CN201922486604.2U
Authority: CN
Inventors: 陆开航; 尚涛; 鄢志辉
Original assignee: Guizhou Provincial Peoples Hospital
Current assignee: Guizhou Provincial Peoples Hospital
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-24
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a baffle for meniscus operation exercise, it includes that it includes two first arcs, two second arcs, two third arcs and a apron, the central angle of first arc is 90, the central angle of second arc is 45, the central angle of third arc is 30, first arc with the second arc is provided with curved mounting groove, but sliding connection has the guide holder that a plurality of rubbers were made in the mounting groove. The utility model provides a baffle for meniscus operation exercise only needs one set of baffle structure can satisfy the needs of multiple operation exercise to greatly reduced construction cost, and effectively promoted exercise efficiency.

Description

A baffle for semilunar plate operation exercise

Technical Field

The utility model relates to a teaching training technical field, in particular to baffle that is used for meniscus operation exercise.

Background

FIG. 1 is a schematic diagram of the structure of the meniscus at the location of the knee joint; FIG. 2 is a schematic top view of the meniscus of FIG. 1; FIG. 3 is a schematic cross-sectional structural view of a meniscus; referring to fig. 1-3, the meniscus is a meniscal cartilage between the femoral condyle and the tibial plateau, with thicker lateral margin, tightly connected to the articular capsule, thinner medial margin, in a free state, the medial meniscus 101 in a "C" shape, the lateral meniscus 102 in an approximately "O" shape, and the anterior and posterior ends of the meniscus attached to the non-articular surface of the medial portion of the tibial plateau, anterior and posterior to the intercondylar eminence. This location is also known as the anterior and posterior horn of the meniscus.

The paracetamol capillary network originates from the inferior and inferior branches of the knee artery, forming peripheral blood vessels and radial access vessels alongside the meniscus. Thus, referring to FIG. 3, the meniscus is divided into "red-red," red-white, and "white-white" zones depending on the location of the vascular zone. Because the meniscus has poor blood circulation and weak repairing capability, once damaged, the meniscus is difficult to repair by self, and if the meniscus is not treated in time, the damaged arthritis is easily caused at the late stage.

Most scholars tend to agree that in the case of conditional conditions, suture-free resection can be performed, partial resection can be performed without secondary resection or total resection, and normal meniscal tissue is retained to the maximum extent to maintain the main physiological functions of the meniscal tissue. If the meniscus of a patient is damaged more freshly and the blood supply of the tearing opening is rich, the patient is young and young, the preferred meniscus suturing operation is certainly the meniscus suturing operation, and as the name suggests, the semilunar suture is to suture the torn meniscus by using a thread.

FIG. 4 is a schematic structural view of a meniscal peripheral tear; FIG. 5 is a schematic diagram of the structure of a meniscal bucket-handle tear; referring to fig. 4 and 5, in medical practice, a peripheral tear of the meniscus, i.e., a lesion of the meniscus near the "red-red" zone next to the joint capsule junction, is most effective after suturing, with a greater probability of success following a displacement suture of the internal fragment of the tubiform tear, i.e., the "red-white" zone of the meniscus.

The meniscus injury suturing under arthroscopy is a mature operation mode at present, and is characterized in that flowing sterile physiological saline is injected into a joint cavity, a lens and an operation instrument enter the joint cavity through a working channel, and the injury part and degree of the meniscus can be observed under the direct vision of the lens through a display, so that the meniscus injury can be sutured by one of three modes, namely suturing from outside to inside, suturing from inside to outside or suturing from inside to inside.

Meniscal suturing is a delicate operation, has high technical requirements for doctors, and the skillful suturing technology requires long-term practice of doctors.

According to practical experience, a team of the inventor (namely, a medical care team of orthopedics department in Guizhou province national hospital) designs an exercise device for simulating meniscus operation in arthroscopic environment by combining with the prior art, such as a knee arthroscope exercise model provided by Chinese patent CN202363002U, a knee joint model provided by Chinese patent CN201498135U, or a detachable knee joint teaching model provided by CN206601879U, and the like, and submits a utility model application named as "an exercise device for simulating meniscus operation in arthroscopic environment" on the same day of the application, and FIG. 6 is a schematic diagram of a partial three-dimensional decomposition structure of the exercise device for simulating meniscus operation in arthroscopic environment applied on the same day; fig. 7 is a schematic structural view of the top surface of the tibial mold of fig. 6. Referring to fig. 6 and 7, an exercise device designed by a team of the inventor for simulating arthroscopic semi-lunar surgery operation comprises a base plate 1, a tibia model 2 and a femur model 3 respectively connected with the base plate 1, a meniscus model 4 detachably disposed on the top of the tibia model 2, a separation cylinder 5 detachably disposed on the base plate 1 for blocking the view of the tibia model 2, the meniscus model 4 can be made by injection molding using silica gel, mounting holes 41 can be disposed on both side ends of the meniscus model 4, a top end of the tibia model 2 can be provided with mounting holes corresponding to the mounting holes 41, so that both side ends of the meniscus model 4 can be fixedly connected with the top end of the tibia model 2 through rubber nails or rubber plugs (not shown in the figure), the femur model 3 can be rotatably connected with the base plate 1 through a connecting rod system 31, the base plate 1 may be provided with an installation slot 11 around the tibia model 2, the isolation cylinder 5 may be inserted into the slot 11, and an assembly opening 51 is provided on one side of the isolation cylinder 5 corresponding to the femur model 3, so as to provide an assembly space for the connecting rod system 31, thereby ensuring that the connecting rod system 31 does not affect the assembly of the isolation cylinder 5 when the femur model 3 is assembled at any position. The sidewall of the isolation cylinder 5 is provided with a plurality of insertion holes 52 (two are shown) for an arthroscope and a surgical instrument during an arthroscopic suture operation at positions corresponding to the tibial model 2. The training device for simulating the meniscus operation in the arthroscopic environment is used when medical personnel need to perform meniscus suturing operation training, firstly, selecting a meniscus suture part for exercise, assembling the corresponding meniscus model 4 on the top surface of the tibia model 2, then adjusting and fixing the position of the femur model 3, so that the femur model 3 and the tibia model 2 simulate and form the space position of a knee joint cavity, and then covering the isolation cylinder 5 on the tibia model 2, and is fixed with the bottom plate 1, medical staff can insert arthroscope into the isolation cylinder 5 through the insertion hole 52 and place the arthroscope on the meniscus model 4 in front of the isolation cylinder 5, then, a surgical instrument is inserted into the insertion hole 52, and a suturing operation is performed based on an image captured by the arthroscope and displayed through the monitor. After the sewing exercise is finished, surgical instruments and arthroscopes are stored, and the isolation cylinder 5 can be taken down to directly observe the sewing effect, so that the operation action can be judged, and the skilled sewing operation hand feeling and skill can be adjusted and developed.

The training device for simulating the meniscus operation in the arthroscopic environment designed by the team of the inventor can better simulate the meniscus suture operation environment and is low in cost.

In the course of arthroscopic meniscal suture surgery, three surgical approaches are mainly used clinically, including: in the training device for simulating the meniscus operation in the arthroscopic environment designed by the team of the inventor, the approach of the surgical instrument is simulated through the insertion holes 52 on the fixed isolation cylinders 5, that is, the insertion holes 52 are required to be formed in each isolation cylinder 5 for the operation approach of different suturing modes, so that the isolation cylinders 5 need to be replaced when different suturing operation exercises are performed. Thus, a plurality of the isolation cylinders 5 are required to meet the requirements of different operators for different suture mode exercises.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the present invention is to provide a partition for meniscus surgical operation exercises to reduce or avoid the aforementioned problems.

In order to solve the technical problem, the utility model provides a baffle for meniscus operation exercise, it is used for the detachable to assemble on an annular on the bottom plate, the bottom plate is in be provided with the shin bone model in the annular, shin bone model top surface is provided with the meniscus model, and it includes two first arcs, two second arcs, two third arcs and a apron, the central angle of first arc is 90, the central angle of second arc is 45, the central angle of third arc is 30, first arc with the second arc is provided with curved mounting groove, but sliding connection has the guide holder that a plurality of rubbers were made in the mounting groove.

Preferably, the guide housing comprises two flared portions connected by a straight tube portion.

Preferably, the inner diameter of the straight tube portion is 5mm to 10 mm.

Preferably, the mounting groove has a cross-sectional width of 13mm, and the straight tube portion has an outer diameter of 14 mm.

Preferably, the cover plate is provided with a U-shaped buckle used for being clamped with the side wall of the first arc-shaped plate or the second arc-shaped plate.

Preferably, the height of the lowest point of the mounting groove on the first arc-shaped plate is 2cm lower than that of the lowest point of the meniscus model, and the height of the highest point is the same as that of the highest point of the meniscus model.

Preferably, the height of the lowest point of the mounting groove of the second arc-shaped plate is the same as that of the highest point of the meniscus model, and the height of the highest point is 2cm higher than that of the lowest point of the meniscus model.

The utility model provides a baffle for meniscus operation exercise, for the utility model is used for solving the utility model discloses a technical scheme in the application of the name that the inventor is in team at this application filed on the same day is "exercise device of simulation arthroscope environment meniscus operation" only needs one set of baffle structure can satisfy the needs of multiple operation exercise to greatly reduced construction cost, and effectively promoted exercise efficiency.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein the content of the first and second substances,

FIG. 1 is a schematic diagram of the structure of the meniscus at the location of the knee joint;

FIG. 2 is a schematic top view of the meniscus of FIG. 1;

FIG. 3 is a schematic cross-sectional structural view of a meniscus;

FIG. 4 is a schematic structural view of a meniscal peripheral tear;

FIG. 5 is a schematic diagram of the structure of a meniscal bucket-handle tear;

FIG. 6 is a schematic diagram of a partially exploded perspective view of a training device for simulating meniscal surgery in an arthroscopic environment as applied on the same day;

fig. 7 is a schematic structural view of the top surface of the tibial mold of fig. 6.

FIG. 8 is a schematic diagram of a partially exploded perspective view of a partition for use in meniscal surgical manipulation exercises, in accordance with an embodiment of the present invention;

fig. 9 is a schematic top view of the first, second and third arcuate plates of fig. 8 in a assembled state;

fig. 10 is a schematic view of the first arcuate plate of fig. 8 in a flat state;

fig. 11 is a schematic view of the second arcuate plate of fig. 8 in a flat state;

fig. 12 is a schematic view of a partial cross-sectional structure of the first and second arcuate plates of fig. 8 in connection with a guide block.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.

FIG. 8 is a schematic diagram of a partially exploded perspective view of a partition for use in meniscal surgical manipulation exercises, in accordance with an embodiment of the present invention; fig. 9 is a schematic top view of the first, second and third arcuate plates of fig. 8 in a assembled state; fig. 10 is a schematic view of the first arcuate plate of fig. 8 in a flat state; fig. 11 is a schematic view of the second arcuate plate of fig. 8 in a flat state; fig. 12 is a schematic view of a partial cross-sectional structure of the first and second arcuate plates of fig. 8 in connection with a guide block. Referring to fig. 8 to 12, the present invention provides a partition plate 6 for practicing a meniscus surgical operation, which is intended to be removably fitted in a ring groove 11 'in a base plate 1, said base plate 1 being provided with a tibial model 2 (not shown in fig. 8, see also fig. 6) in said ring groove 11', said tibial model 2 being provided with a meniscus model 4 on its top surface, which comprises two first arc-shaped plates 61, two second arc-shaped plates 62, two third arc-shaped plates 63 and a cover plate 64, the central angle of the first arc-shaped plate 61 is 90 degrees, the central angle of the second arc-shaped plate 62 is 45 degrees, the central angle of the third arc-shaped plate 63 is 30 °, the first arc-shaped plate 61 and the second arc-shaped plate 62 are provided with arc-shaped mounting grooves 611(621), a plurality of rubber guide seats 65 are slidably coupled to the mounting grooves 611 (621).

As the background art, the utility model is used for solve the inventor place team in this application on the same day submit the utility model application of title for "exercise device of simulation arthroscope environment meniscus operation", when carrying out the different sewing operation exercises, need change isolation cylinder 5.

The common clinical routine sites for three surgical approaches are,

anterior-lateral approach: is positioned 1cm above the lateral joint line and 1cm at the edge of the patellar tendon, and the inlet is positioned 1cm below the patella;

front inner side access: is positioned at the position of 1cm of the medial joint line, 1cm below the patella inferior pole and 1cm inside the inner edge of the patella tendon;

entering the path from the upper part to the lower part: located on the lateral side of the quadriceps femoris tendon at about 2.5cm above the superior lateral corner of the patella;

of course, the access may be provided at other positions depending on the specific suturing site, the instrument used, the operation habit, and the like. However, in general, the suture device is generally accessed near the meniscus.

Referring to fig. 8, 10 and 11, in the present application, by providing the first arc-shaped plate 61 and the second arc-shaped plate 62 with the arc-shaped mounting grooves 611(621), the rubber-made guide seat 65 for simulating the approach can be enabled to be located near the top surface of the tibia model 2 of the base plate 1, that is, the approach of the simulated suturing apparatus, which is obtained by adjusting the position of the guide seat 65, can approximate the real surgical approach near the meniscus model 4.

The mounting groove 611(621) is provided with an opening at one side edge of the first arc plate 61 and the second arc plate 62, which facilitates assembly and replacement of the different guide seats 65.

Referring to fig. 12, the guide seat 65 may include two bell-mouth portions 652 connected by a straight tube portion 651, and the inner diameter of the straight tube portion 651 may be 5mm to 10mm, so as to effectively simulate various instrument passages in arthroscopic surgery, and specifically, a plurality of guide seats 65 having inner diameters of 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm may be provided, and these guide seats 65 may be fitted in the mounting grooves 611(621), and the corresponding guide seats 65 may be adjusted to specific positions according to the requirements of the instruments used in the simulation operation.

The sectional width of the mounting groove 611(621) can be set to 13mm, and the outer diameter of the straight tube portion 651 can be set to 14mm, so that the guide holder 65, which is not used, can be prevented from being shaken at will. The guide seat 65 is made of rubber, and therefore, with respect to the guide seat 65 in use, since the side walls of the inserted instrument and the mounting grooves 611(621) can be deformed by pressing the straight tube portion 651, the position of the guide seat 65 can be secured stably during use.

Since the mounting groove 611 on the first arc plate 61 is mainly used to simulate an anterolateral approach and an anterolateral approach, the height of the lowest point of the mounting groove 611 on the first arc plate 61 may be set to be 2cm lower than the height of the lowest point of the meniscus model 4, and the height of the highest point may be set to be the same as the height of the highest point of the meniscus model 4. Similarly, since the mounting groove 621 of the second arc-shaped plate 62 is mainly used for simulating an external upper approach, the height of the lowest point of the mounting groove 621 of the second arc-shaped plate 62 may be set to be the same as the height of the highest point of the meniscus model 4, and the height of the highest point may be set to be 2cm higher than the height of the lowest point of the meniscus model 4. In this way, even if the tibia model 2 is hinged to the bottom portion 1, the position of the tibia model 2 can be adjusted, and after the tibia model 2 is adjusted to a proper position, the corresponding position of the guide seat 65 can be obtained by adjusting the positions of the first arc-shaped plate 61 and the second arc-shaped plate 62.

Referring to fig. 8 and 9, the first arc-shaped plate 61, the second arc-shaped plate 62 and the third arc-shaped plate 63 can be spliced in the ring groove 11', so that on one hand, the view of the position of the meniscus model 4 can be shielded, and on the other hand, the positions of the first arc-shaped plate 61 and the second arc-shaped plate 62 can be flexibly adjusted in the ring groove 11', so that the position of the guide seat 65 for simulating the approach of surgical instruments can be obtained.

The cover plate 64 is used for shielding the view above the tibia model 2, and is not stressed during the exercise process, so that the cover plate 64 may be provided with a U-shaped buckle (not shown in the figure) and can be clamped with the side wall of the first arc-shaped plate 61 or the second arc-shaped plate 62. This greatly simplifies the production and manufacturing costs.

First arc 61, second arc 62 with third arc 63 is whole to splice when on the annular 11', two also leave the assembly space that is used for linkage 31 between the third arc 63, and the skilled person in the art should understand, work as first arc 61 with second arc 62 is in when the position adjustment on the annular 11' is great the last one that can only assemble of annular 11' third arc 63 as long as can satisfy the field of vision and shelter from can.

It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims

1. The utility model provides a baffle for meniscus operation exercise, its characterized in that, it is used for on detachable assembles an annular on the bottom plate, the bottom plate is in be provided with the shin bone model in the annular, shin bone model top surface is provided with the meniscus model, and it includes two first arcs, two second arcs, two third arcs and a apron, the central angle of first arc is 90, the central angle of second arc is 45, the central angle of third arc is 30, first arc with the second arc is provided with curved mounting groove, but sliding connection has the guide holder that a plurality of rubbers were made in the mounting groove.

2. A partition for use in meniscal surgical manipulation exercises as claimed in claim 1, wherein said guide comprises two flared portions connected by a straight tube portion.

3. A partition for use in meniscal surgical manipulation exercises as claimed in claim 2, wherein said straight tubular portion has an internal diameter of 5mm to 10 mm.

4. The spacer for meniscus surgical operation exercise according to claim 3, wherein the mounting groove has a sectional width of 13mm, and the straight tube portion has an outer diameter of 14 mm.

5. The partition for meniscus surgical manipulation exercises, according to claim 1, wherein the cover plate is provided with a U-shaped catch for snapping into engagement with the side wall of the first or second curved plate.

6. The spacer for meniscal surgical manipulation exercises as claimed in claim 1, wherein the lowest point of said mounting groove on said first arcuate plate is 2cm lower in height than the lowest point of said meniscus model, and the highest point is the same height as the highest point of said meniscus model.

7. The spacer for meniscal surgical manipulation exercises as claimed in claim 6, wherein the height of the lowest point of the mounting groove of the second arcuate plate is the same as the height of the highest point of the meniscus model, the height of the highest point being 2cm higher than the height of the lowest point of the meniscus model.