CN211087702U - Meniscus for surgical operation exercise - Google Patents

Abstract

The utility model provides a meniscus for operation exercise, its is used for placing at a shin bone model top surface to supply medical personnel to carry out the operation exercise of sewing up of meniscus, and it includes the somatic part of making through silica gel according to real meniscus structure size, be provided with the mounting hole on the both sides tip of somatic part, the top of shin bone model corresponds the mounting hole is provided with the pilot hole, the mounting hole with the pilot hole can be dismantled through rubber nail or rubber stopper and connect, this somatic part is two in the region between the mounting hole, it has the enhancement layer to paste at the bottom surface, and the upper surface in the inboard corresponds the position in meniscus red-red district and red-white district and also has pasted the enhancement layer. The utility model provides a meniscus for operation exercise can make the operator at the exercise in-process, obtains the puncture that is closer real operation and feels, just also means can make the operator have the dynamics perception exercise of beautiful.

Description

Meniscus for surgical operation exercise

Technical Field

The utility model relates to a teaching training technical field, in particular to a meniscus for 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.

And real meniscus structure is covered for the surface has thin layer fibre cartilage, and inside for being thoughtlessly having a large amount of elastic fiber's compactness collagen fiber, in above-mentioned technical scheme, meniscus model 4 is made by silica gel completely, though can let the fine exercise of operator sew up walk the line, technique such as knoing, but the apparatus is puncturing meniscus model 4 is the time, feels and real operation still has great difference, can not make the operator have the dynamics perception exercise of good splendid attire.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present invention is to provide a meniscus for surgical procedures to reduce or avoid the aforementioned problems.

In order to solve the technical problem, the utility model provides a meniscus for operation exercise, it is used for placing at a shin bone model top surface to supply medical personnel to carry out the operation exercise of sewing up of meniscus, it includes the somatic part of making through silica gel according to real meniscus plate structure size, be provided with the mounting hole on the both sides tip of somatic part, the top of shin bone model corresponds the mounting hole is provided with the pilot hole, the mounting hole with the connection can be dismantled through rubber nail or rubber stopper to the pilot hole, somatic part is two in the region between the mounting hole, has pasted the enhancement layer in the bottom surface, and the upper surface in the inboard corresponds the position in meniscus red-red district and red-white district and also has pasted the enhancement layer.

Preferably, the reinforcing layer is made of polyethylene or polypropylene plastic with a thickness of 1mm to 2 mm.

Preferably, the reinforcing layer is made of 0.4-0.6 mm acrylic material.

Preferably, the body part is formed by adhering the reinforcing layer on the inner upper surface thereof in three parts according to the anterior angle and the posterior angle of the meniscus and the corresponding area of the body part.

The utility model provides a meniscus for operation exercise can make the operator at the exercise in-process, obtains the puncture that is closer real operation and feels, just also means can make the operator have the dynamics perception exercise of beautiful.

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 structural view of a meniscal peripheral tear;

FIG. 4 is a schematic diagram of the structural principle of a meniscal bucket-handle 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 top view of a meniscus for surgical procedure practice in accordance with an embodiment of the present invention;

fig. 9 is a schematic diagram of the cross-sectional structure of fig. 8.

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 top view of a meniscus for surgical procedure practice in accordance with an embodiment of the present invention; fig. 9 is a schematic diagram of the cross-sectional structure of fig. 8. Referring to fig. 8 and 9, the present invention provides a meniscus 7 for surgical operation practice, which is used to be placed on the top surface of a tibia model 2 for medical staff to perform meniscus suture operation practice, and includes a body portion 71 made of silica gel according to the structure size of a real meniscus, wherein mounting holes 72 are provided on both side ends of the body portion 71, the top end of the tibia model 2 is provided with mounting holes corresponding to the mounting holes 72, the mounting holes 72 and the mounting holes are detachably connected by rubber nails or rubber plugs, the body portion 71 is adhered with a reinforcing layer 73 on the bottom surface in an area between the two mounting holes 72, and a reinforcing layer 73 is also adhered on the inner side at the position corresponding to the red-red area and the red-white area of the meniscus.

As the background art, the name that the inventor of this application was filed on the same day as this application is "exercise device of simulation arthroscope environment meniscus operation" among the technical scheme of the utility model application, the meniscus model is made by silica gel completely, through using the feedback, the operator is when the operation is practised, the feel of using surgical instruments puncture still has great difference with real operation, consequently is difficult to make the operator have the dynamics perception exercise of beautiful.

The inventor of the application has discovered that the hand feeling close to the fibrocartilage on the surface of a real meniscus can be provided when the bottle bodies of disposable plastic infusion bottles are overlapped for puncture, so the inventor provides the technical scheme of the application on the basis of the originally designed meniscus model 4. Specifically, the body 71 is first made of silicone rubber according to the structural size of the real meniscus, and the body 71 is provided with mounting holes 72 at both side ends thereof, so that the meniscus 7 is subsequently mounted on the top surface of the tibial model 2 through the mounting holes by rubber pins or rubber plugs, thereby being used for surgical practice.

For the body 71 between the two mounting holes 72, the reinforcing layer 73 is adhered to the whole area of the bottom surface, so that the meniscus 7 can be stably placed on the top surface of the tibia model 2. In addition, a reinforcing layer 73 is also attached to the inner upper surface at a position corresponding to the red-red and red-white regions of the meniscus.

The reinforcing layer 73 may be made of polyethylene or polypropylene plastic with a thickness of 1mm to 2mm, for example, a conventional disposable plastic infusion bottle which is not used may be cut, and then a single-layer or double-layer body material with a corresponding size may be adhered to the body portion 71 to form the reinforcing layer 73. In addition, the reinforcing layer 73 may be made of 0.4mm to 0.6mm of acryl material.

The bottom surface of the body part 71 is flat, so that the reinforcing layer 73 can be adhered to a whole, and the positions of the inner upper surface of the body part 71 corresponding to the red-red area and the red-white area of the meniscus are adhered and formed by dividing into three parts according to the front angle and the rear angle of the meniscus and the area corresponding to the body part due to the existence of the irregular arc-shaped curved surface, so that on one hand, the reinforcing layer 73 can be ensured to be respectively and completely arranged on the inner upper surfaces of the front angle, the rear angle or the body part in the exercise process, and the corresponding operation of sewing exercise is not influenced. On the other hand, the pasting work is easier.

After the reinforcing layer 73 is adhered, a cut similar to the peripheral tear of fig. 4 or the barrel-shaped tear of fig. 5 can be cut by a cutter according to the suturing operation to be practiced, and then the cutting tool can be assembled on the top surface of the tibia model 2 for practicing the surgical operation.

Referring to fig. 9, in the operation of meniscal suturing, instead of the passage between the outer side of the meniscus 7 and the position of the upper surface of the inner side of the meniscus 7 corresponding to the red-red and red-white zones of the meniscus, as shown by the dotted line 200 in the figure, the passage between the bottom of the meniscus 7 and the outer side of the meniscus 7, as shown by the dotted line 300 in the figure, can be used as long as suturing can be accomplished through the opening position where suturing is required. Therefore, the utility model provides a meniscus 7 for operation exercise, the position and the bottom surface that correspond meniscus red-red district and red-white district on the upper surface in the inboard all are pasted enhancement layer 73 just also can make the operator in the exercise process, obtains the puncture that is more close real operation and feels, just also means can make the operator have the dynamics perception exercise of beautiful.

It should be understood by those skilled in the art that although fig. 8 and 9 only show the meniscus 7 for surgical procedure practice provided by the present invention arranged according to the structure of the medial meniscus, for the lateral meniscus, it is sufficient to arrange according to the technical solution provided by the present invention according to the shape characteristics of the lateral meniscus. The meniscus 7 for surgical manipulation exercises provided by the present invention for the lateral meniscus is no longer described in detail in this application.

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 (4)

1. The utility model provides a meniscus for operation exercise, its characterized in that, it is used for placing at a shin bone model top surface to supply medical personnel to carry out the sewing operation exercise of meniscus, and it includes the somatic part of making through silica gel according to real meniscus structure size, be provided with the mounting hole on the both sides tip of somatic part, the top of shin bone model corresponds the mounting hole is provided with the pilot hole, the mounting hole with the pilot hole passes through rubber nail or rubber stopper and can dismantle the connection, the somatic part is two in the region between the mounting hole, has pasted the enhancement layer on the bottom surface, also has pasted in the position that the inside upper surface corresponds meniscus red-red district and red-white district the enhancement layer.

2. The meniscus for surgical procedure practice according to claim 1, characterized in that the reinforcement layer is made of polyethylene or polypropylene plastic with a thickness of 1mm-2 mm.

3. The meniscus for surgical procedure practice of claim 1, wherein the reinforcement layer is made of 0.4mm to 0.6mm of acrylic material.

4. The meniscus for surgical manipulation exercise according to claim 1, wherein the body part is adhesively molded with the reinforcement layer on the inner upper surface in three parts according to the anterior horn and posterior horn of the meniscus and the corresponding area of the body part.

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