Trimmer for articular cartilage repair material

Abstract

A trimmer for articular cartilage materials comprises a trimmer body, the trimmer body comprises a first handle, a second handle, a first connecting rod fixedly connected to one end of the first handle and a second connecting rod fixedly connected to one end of the second handle, and the first connecting rod and the second connecting rod are hinged through a rotating shaft. The other end of the first connecting rod is fixedly connected with a product placing device, the other end of the second connecting rod is fixedly connected with a mold clamping groove, and the mold clamping groove and the product placing device are oppositely arranged in parallel. The edging structure of the cutter can prevent the cartilage repair material from being damaged when the cartilage repair material is trimmed, so that the cartilage repair material is prevented from being wasted.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a trimmer for articular cartilage repair materials. Background Art

[0002] Articular cartilage is a tissue without blood vessels, nerves or lymph nodes, and it is difficult to repair itself after injury. In the past few decades, people have been committed to studying methods for repairing and reconstructing cartilage injuries, including bone marrow stimulation technology (microfracture technology MF), autologous osteochondral transplantation (OATS), allogeneic osteochondral transplantation (OCA), autologous chondrocyte transplantation (ACI), matrix-induced autologous chondrocyte transplantation (MACI), tissue engineering and stem cell cartilage repair technology, etc.

[0003] Articular cartilage repair materials are made from porcine chondrocytes, which are cultured through in vitro tissue engineering technology to produce cartilage-like tissue and then decellularized. Their main components are basically the same as articular cartilage, and they have the function of inducing in situ regeneration of articular cartilage with a high-purity hyaline cartilage phenotype. A large number of previous studies have shown that they can effectively treat osteoarthritis caused by cartilage damage. During articular cartilage injury repair surgery, the material needs to be trimmed to an appropriate size, but the material is relatively soft, and ordinary scissors trimming will damage the repair material, resulting in uneven material, which in turn causes the product to not fit the wound well, resulting in repair failure. Utility Model Content

[0004] The utility model aims to solve the existing problems of cartilage trimming and provide a trimmer for articular cartilage repair material, so as to overcome the problem that the existing trimmer has poor trimming effect, resulting in poor fit with the wound surface and repair failure.

[0005] To solve the above problems, the utility model provides the following technical solutions: a trimmer for articular cartilage repair materials, comprising a trimmer body, the trimmer body comprising a first handle, a second handle, a first connecting rod fixedly connected to one end of the first handle, and a second connecting rod fixedly connected to one end of the second handle, the first connecting rod and the second connecting rod are hinged by a rotating shaft, the other end of the first connecting rod is fixedly connected to a product placer, the other end of the second connecting rod is fixedly connected to a mold slot, and the mold slot is arranged parallel to and opposite to the product placer.

[0006] By adopting the above technical solution, the handle adjusts the distance between the product placer and the trimmer mold through the rotating shaft.

[0007] As a further description of the above technical solution, the other end of the first connecting rod is fixedly connected to the mold slot, and the other end of the second connecting rod is fixedly connected to the product placer.

[0008] By adopting the above technical solution, the positions of the mold slot and the product placer can be interchanged, which is convenient for cutting from different angles.

[0009] As a further description of the above technical solution, a detachably connected trimmer mold is provided on the mold slot, and the trimmer mold includes a buckle and a cutter, the buckle and the cutter are fixedly connected, and the buckle matches the mold slot;

[0010] By adopting the above technical solution, the trimmer body can be used in combination with trimmer molds of different shapes and sizes, and the size of the trimmer mold can also be customized according to clinical needs.

[0011] As a further description of the above technical solution, the cutter is a sharp-edged structure.

[0012] By adopting the above technical solution, the cutter can trim the cartilage repair material.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, by providing a mold slot, different trimmer molds can be replaced, and the cartilage repair material can be trimmed to a suitable size as needed to fit the wound surface, thereby improving the cartilage repair effect.

[0015] In the utility model, the cutting edge structure of the cutter can avoid damaging the cartilage repair material when trimming the cartilage repair material, thereby preventing the cartilage repair material from being wasted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model in an assembled state;

[0017] Figure 2 It is a structural schematic diagram of the trimmer body of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a trimmer mold of the utility model.

[0019] Among them, 1-trimmer body, 11a-first handle, 11b-second handle, 12a-first connecting rod, 12b-second connecting rod, 13-rotating shaft, 14-product placer, 15-mold slot, 2-trimmer mold, 21-buckle, 22-cutter. DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described in detail below in combination with the accompanying drawings. However, the following embodiments are only used to help understand the implementation of the present invention and cannot be understood as further limiting the present invention.

[0021] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0022] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, but should not be construed as limiting the present utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Example 1

[0027] Figure 1-3 As shown, a trimmer for articular cartilage repair material includes a trimmer body 1, the trimmer body 1 includes a first handle 11a, a second handle 11b, a first connecting rod 12a fixedly connected to one end of the first handle 11a, and a second connecting rod 12b fixedly connected to one end of the second handle 11b, the first connecting rod 12a and the second connecting rod 12b are hinged by a rotating shaft 13, the other end of the first connecting rod 12a is fixedly connected to a product placer 14, the other end of the second connecting rod 12b is fixedly connected to a mold slot 15, the mold slot 15 is arranged parallel to the product placer 14, and a detachably connected trimmer mold 2 is provided on the mold slot 15, the trimmer mold 2 includes a buckle 21 and a cutter 22, the buckle 21 and the cutter 22 are fixedly connected, and the cutter 22 is a sharpened structure.

[0028] Figure 1 As shown, the buckle 21 matches the mold slot 22 . Example 2

[0029] Figure 1-3 As shown, a trimmer for articular cartilage repair material includes a trimmer body 1, the trimmer body 1 includes a first handle 11a, a second handle 11b, a first connecting rod 12a fixedly connected to one end of the first handle 11a, and a second connecting rod 12b fixedly connected to one end of the second handle 11b, the first connecting rod 12a and the second connecting rod 12b are hinged by a rotating shaft 13, the other end of the first connecting rod 12a is fixedly connected to a mold slot 15, the other end of the second connecting rod 12b is fixedly connected to a product placer 14, the mold slot 15 is arranged parallel to the product placer 14, a detachable trimmer mold 2 is provided on the mold slot 15, the trimmer mold 2 includes a buckle 21 and a cutter 22, the buckle 21 and the cutter 22 are fixedly connected, and the cutter 22 is a sharpened structure.

[0030] Figure 1 As shown, the buckle 21 matches the mold slot 22 .

[0031] Working principle: During the articular cartilage injury repair surgery, select a trimmer mold 2 of appropriate size, push the buckle 21 into the mold slot 15, and after it is fully clamped, place the cartilage repair material to be trimmed on the product placer 14, use sterile gauze to absorb the surface moisture, and then press the first handle 11a and the second handle 11b to cut the product into the size of the mold. After the product is cut, remove the product and place it in the patient's body to complete the surgery.

[0032] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. Simple combination changes are included in the protection scope of the present invention.

Claims

1. A trimmer for articular cartilage repair material, comprising a trimmer body (1), characterized in that: The trimmer body (1) comprises a first handle (11a), a second handle (11b), a first connecting rod (12a) fixedly connected to one end of the first handle (11a), and a second connecting rod (12b) fixedly connected to one end of the second handle (11b); the first connecting rod (12a) and the second connecting rod (12b) are hinged via a rotating shaft (13); the other end of the first connecting rod (12a) is fixedly connected to a product placement device (14); the other end of the second connecting rod (12b) is fixedly connected to a mold slot (15); the mold slot (15) is arranged parallel to and opposite to the product placement device (14).

2. The trimmer for articular cartilage repair material according to claim 1, characterized in that: The other end of the first connecting rod (12a) is fixedly connected to a mold slot (15), and the other end of the second connecting rod (12b) is fixedly connected to a product placement device (14).

3. A trimmer for articular cartilage repair material according to claim 1 or 2, characterized in that: A detachably connected trimmer mold (2) is provided on the mold slot (15); the trimmer mold (2) comprises a buckle (21) and a cutter (22); the buckle (21) and the cutter (22) are fixedly connected.

4. The trimmer for articular cartilage repair material according to claim 3, characterized in that: The buckle (21) matches the mold slot (15).

5. The trimmer for articular cartilage repair material according to claim 3, characterized in that: The cutter (22) is a sharp-edged structure.

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