Device for replanting and repairing human tissues

Abstract

The utility model belongs to the technical field of human tissue repair operations, and particularly relates to a device for human tissue replantation repair. Comprising a storage bowl, a tissue collection cover plate, a grinding cover plate, a filter bowl, a liquid nitrogen container cover plate, a pestle, a filter bowl and a sucking pump, the tissue collection cover plate detachably covers the bowl opening of the storage bowl in a sealing manner, and a tissue suction pipe and an exhaust pipe are arranged on the tissue collection cover plate; the tissue suction pipe is used for absorbing tissue debris, and the suction pipe is connected with a suction pump; the tissue debris is sucked out by the suction pump through the tissue suction pipe and is blocked and left in the storage bowl; the grinding cover plate covers the opening of the storage bowl, the top end of the grinding cover plate is provided with an open hole for liquid nitrogen to drop in, and the grinding pestle can be inserted into the storage bowl through the open hole for stirring; the filter bowl can cover the bowl opening of the storage bowl, and a filter screen plate is arranged at the bowl opening of the filter bowl. The device has the advantages that the structure is simple, the size is small, the tissue damage recovery effect can be effectively improved through a repair operation based on the device, and later tissue recovery is faster and firmer.

Description

Technical Field

[0001] The utility model belongs to the technical field of human tissue repair surgery, and in particular relates to a device for human tissue replantation and repair. Background Art

[0002] The healing of soft tissue after repair, such as the healing of cartilage and ligament injuries, and the healing of rotator cuff tendon repair, has always been a pain point and difficulty in clinical practice. There are many ways to promote the healing of soft tissue after repair, such as PRP injection, type I collagen injection, etc. However, the current healing effect after repair is still unsatisfactory. Autologous tissue reimplantation has been proven to be a clinically effective method. After the matrix of autologous tissue fills the damaged area, it can effectively promote tissue healing. However, the pretreatment of autologous tissue before reimplantation is relatively difficult, and there is a lack of relevant instruments or equipment, which makes this type of surgery difficult to perform. This utility model patent aims to design a simple and effective instrument for the pretreatment of autologous tissue before reimplantation to assist in the implementation of autologous tissue reimplantation surgery. Summary of the Invention

[0003] The purpose of the utility model is to provide a device for human tissue replantation and repair that is convenient and quick to operate.

[0004] The device for human tissue replantation and repair provided by the utility model comprises a storage bowl, a tissue collection cover plate, a grinding cover plate, a pestle, a filter bowl and an air pump;

[0005] The tissue collection cover is detachably sealed and closed on the opening of the storage bowl. The tissue collection cover is provided with two through holes, and a tissue debris suction pipe and an air extraction pipe are connected thereto. The other end of the tissue debris suction pipe is used to absorb tissue debris near the damaged tissue surgical area. The other end of the air extraction pipe is connected to an air extraction pump. A debris filter is provided at the connection between the air extraction pipe and the tissue collection cover. Tissue debris can be sucked out by the air extraction pump through the tissue debris suction pipe and blocked by the debris filter, remaining in the storage bowl.

[0006] The grinding cover is detachably sealed and closed on the mouth of the storage bowl. An opening is provided at the center of the top of the grinding cover for dripping liquid nitrogen and for inserting the pestle into the storage bowl through the opening.

[0007] The detachable sealing cover of the filter bowl is closed on the bowl mouth of the storage bowl, wherein the bowl mouth of the filter bowl is provided with a detachable filter mesh plate, and the filter bowl is connected to the bowl mouth of the storage bowl through the filter mesh plate.

[0008] In this utility model, the opening of the grinding cover is larger than the maximum diameter of the pestle, making it easier for the liquid nitrogen device to add liquid nitrogen to the storage bowl. A soft silicone ring cover with an outer diameter that matches the inner diameter of the opening is placed around the waist of the pestle, sealingly covering the opening of the grinding cover. When the cover is closed, the bottom of the pestle can touch the bottom of the storage bowl, and the soft silicone ring cover is elastic, ensuring the pestle's grinding and striking motion. This further locks in the liquid nitrogen and improves its freezing effect.

[0009] Furthermore, the pestle is made of hard plastic material and is integrally formed with a soft silicone ring cover through a double-material injection molding process.

[0010] In the present invention, the filter mesh disk is specified to be used for filtering tissue debris particles with a particle size of less than 150 μm.

[0011] In the present invention, the tissue debris can be cartilage debris shaved off the cartilage by an instrument, or part of the tissue of the ligament or tendon cut by surgical scissors.

[0012] The utility model is used in the autologous tissue repair surgery, and the operation steps are as follows:

[0013] (1) Plane or shear the damaged tissue and collect the tissue debris into a storage bowl;

[0014] (3) Add liquid nitrogen to the storage bowl to freeze the tissue fragments;

[0015] (4) Grinding the frozen tissue fragments in the storage bowl until they become uniform powdered tissue particles;

[0016] (5) Filtering the powdered tissue particles to retain tissue particles with a desired particle size (e.g., 150 μm) or less;

[0017] (6) Injecting biogel, such as PRP / Typ I Collagen (type I collagen), into the filtered tissue powder particles; stirring evenly to form a tissue particle gel;

[0018] (7) Re-inject the tissue particle gel into the damaged tissue area to fill the defective gap.

[0019] The specific operations are:

[0020] The utility model uses instruments (medical planers / planers / surgical scissors) to perform planing surgery on damaged cartilage, ligaments, and tendons. The various components of the utility model are placed on the side of the operating table in advance. At this time, the tissue collection cover is first covered on the storage bowl, and the nozzle of the scraping suction pipe is aligned with the damaged tissue site. During the planing or shearing operation, the suction pump is started, and the planed and sheared tissue debris is sucked into the storage bowl through the tissue debris suction pipe. Due to the debris filter on the suction pipe, larger pieces of debris are retained in the storage bowl. After the planing is completed, the suction pump is turned off and the tissue collection cover is removed.

[0021] Place the grinding cover on the storage bowl, and drip liquid nitrogen from a readily available liquid nitrogen storage tank into the storage bowl through the opening of the grinding cover. The amount of liquid nitrogen added depends on the capacity of the debris, and the debris is frozen into a solid block. Then, insert the pestle into the opening of the grinding cover. The soft silicone ring of the pestle seals the opening to prevent the liquid nitrogen from escaping, ensuring the freezing effect. Then, use the pestle to strike and stir, grinding the tissue debris into powdered tissue particles. After grinding, remove the grinding cover.

[0022] Cover the filter bowl and close it with the storage bowl, then turn the filter bowl over so that the storage bowl is above the filter bowl. The tissue particles pass through the filter mesh of the filter bowl and fall into the filter bowl. The tissue particles with the required particle size (for example, larger than 150μm) are filtered out by the filter mesh. In the middle, the filter bowl can be shaken repeatedly to speed up the filtering effect. After completion, remove the storage bowl and remove the filter mesh.

[0023] Add collagen to the filter bowl and stir to form a tissue particle gel; use a regular syringe to suck out the tissue particle gel and re-inject it into the damaged area of the original tissue to fill the defective gap and complete the tissue repair.

[0024] The advantages of this utility model are that the device has a simple structure, low cost, small size, easy filling, high efficiency, and small replanted tissue particles. In human tissue repair surgery, it can serve as a quick and effective auxiliary operation tool to realize a surgical method of autologous tissue replantation to repair tissue damage. The repair surgery based on the device of this utility model can effectively improve the tissue damage recovery effect, making the later tissue recovery faster and stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the storage bowl and tissue collection cover in the embodiment in use.

[0026] Figure 2 It is a structural diagram of the storage bowl and grinding cover plate in the embodiment in use.

[0027] Figure 3 for Figure 2 Side view schematic.

[0028] Figure 4 It is a structural diagram of the usage status of the storage bowl and the filter bowl in the embodiment.

[0029] The numbers in the figure are: 1 is a storage bowl, 2 is a tissue collection cover, 3 is a grinding cover, 4 is a pestle, 5 is a filter bowl, 6 is an air pump, 7 is a tissue debris suction tube, 8 is an air suction tube, 9 is a filter mesh plate, 10 is a soft silicone ring cover, and 11 is a debris filter. DETAILED DESCRIPTION

[0030] The device for human tissue replantation and repair provided by the present invention comprises a storage bowl 1, a tissue collection cover plate 2, a grinding cover plate 3, a pestle 4, a filter bowl 5 and an air pump 6; all of which are made of medical plastic or stainless steel;

[0031] The storage bowl 1 is a round bowl; a sealing silicone ring is provided on the edge of the bowl;

[0032] The tissue collection cover 2 is detachably sealed and closed on the opening of the storage bowl. The tissue collection cover 2 is provided with two through holes, connected to which are provided a tissue debris suction pipe 7 and an air extraction pipe 8. The other end of the tissue debris suction pipe 7 is used to absorb tissue debris near the damaged tissue surgical area. The other end of the air extraction pipe 8 is connected to a small air extraction pump 6. A debris filter is provided at the connection between the air extraction pipe 8 and the tissue collection cover 2. Tissue debris can be sucked out by the air extraction pump 6 through the tissue debris suction pipe 7 and blocked by the debris filter, remaining in the storage bowl 1.

[0033] The air pump 6 can be a small air pump with an existing flow rate of about 20-30 L / min, and is powered by a lithium battery.

[0034] The tissue collection cover 2 and the storage bowl 1 can be fixed by auxiliary surgical personnel by pressing them, or a conventional buckle structure, such as a duckbill buckle or a spring buckle, will not be described in detail;

[0035] The grinding cover 3 can be detachably sealed and covered on the mouth of the storage bowl 1. An opening is provided at the center of the top of the grinding cover 3 for dripping liquid nitrogen, and the pestle 4 can be inserted into the storage bowl 1 through the opening. The liquid nitrogen can be stored in advance in a conventional liquid nitrogen storage tank for standby use. The liquid nitrogen storage tank can be detachably arranged in a frame-shaped bracket. When dripping liquid nitrogen, the frame-shaped bracket can be erected above the storage bowl 1 for easy operation.

[0036] The opening of the grinding cover plate 3 is larger than the maximum diameter of the pestle 4, which can facilitate the liquid nitrogen device to add liquid nitrogen to the storage bowl 1; the waist position of the pestle 4 is surrounded by a soft silicone ring cover 10 with an outer diameter that matches the inner diameter of the opening, which can be sealed on the opening of the grinding cover plate 3; when the cover is closed, the bottom end of the pestle 4 can touch the bottom of the storage bowl 1, and the soft silicone ring cover 10 has elasticity to ensure the grinding and knocking movement of the pestle 4. This can further lock the liquid nitrogen and improve the freezing effect of the liquid nitrogen. The pestle 4 is made of medical hard plastic material, and is formed into one piece with the soft silicone ring cover through a double-material injection molding process, or connected in a traditional preset tenon form. The soft silicone ring cover 10 and the grinding cover plate 3 can also be connected by setting a traditional card connection form, such as Figure 3 As shown, the soft silicone ring cover 10 is fixed by using the softness and friction of the silicone. Here, the soft silicone ring cover 10 is used as a flexible transition structure material for grinding, which is convenient for people to operate the pestle 4 to perform operations such as knocking and grinding without any operation restrictions.

[0037] The filter bowl 5 is detachably sealed over the rim of the storage bowl 1 and is also equipped with a rubber seal. A detachable filter screen 9 is also provided at the rim of the filter bowl 5, connecting the filter bowl 5 to the rim of the storage bowl 1 via the filter screen 9. The filter screen 9 is designed to filter particles larger than 150 μm; different filter screens can be selected and replaced depending on the particle size to be filtered.

[0038] After the filter bowl 5 and the storage bowl 1 are matched, they can be fixed together by a conventional stainless steel buckle structure so that the filter bowl 5 and the storage bowl 1 can be flipped together; the buckle here adopts a conventional quick-release buckle, for example, a plurality of stainless steel duckbill buckles are set on the edges of the filter bowl and the storage bowl.

[0039] The tissue debris can be cartilage debris scraped off the cartilage by an instrument, or part of the tissue of the ligament or tendon cut by surgical scissors.

[0040] During an autologous tissue repair surgery, such as cartilage damage repair, the present invention is placed at the side of the operating table, and the damaged cartilage is scraped using a bone scraper. At this point, the tissue collection cover is first placed on the storage bowl, the tip of the tissue suction pipe is aligned with the cartilage scraping area, and the suction pump is started. The scraped cartilage debris is sucked into the storage bowl through the tissue suction pipe. Due to the debris filter at the suction pipe, larger pieces of bone debris are retained in the storage bowl. After the scraping is completed, the suction pump is turned off.

[0041] The grinding cover is covered on the storage bowl, the frame of the liquid nitrogen storage tank is set on the storage bowl, the liquid nitrogen drop outlet is facing the opening of the grinding cover, and liquid nitrogen is added dropwise. The amount of liquid nitrogen added is determined according to the capacity of the bone chips to freeze the bone chips into solid blocks; the pestle is inserted into the opening of the grinding cover, and the soft silicone ring cover of the pestle seals the opening. After standing for a period of time, the pestle is started to stir and beat to grind the bone chips into bone powder; after grinding is completed, the grinding cover is opened, the filter bowl is covered, and the storage bowl is tightly covered, and the filter bowl and the storage bowl are fixed together by a buckle, and then the filter bowl is turned over so that the storage bowl is located above the filter bowl. The bone powder particles fall into the filter bowl through the filter mesh disk of the filter bowl, and the bone powder particles with a particle size greater than 150 μm are filtered out by the filter mesh disk; in the middle, the filter bowl can be repeatedly rotated by shaking to vibrate to speed up the filtering effect; after completion, the storage bowl is removed and the filter mesh disk is removed;

[0042] Add biological glue, such as PRP / Typ I Collagen (type I collagen), to the filter bowl and stir to form a bone powder particle gel. Use a syringe to suck out the bone powder particle gel and re-inject it into the original cartilage damaged area to fill the defective gap and complete the cartilage repair.

[0043] The advantages of this utility model are that the device is small in size, easy to fill, highly efficient, and has small particles of replanted tissue. In human tissue repair surgery, it can serve as a quick and effective auxiliary operation tool to realize a surgical method of autologous tissue replantation to repair tissue damage. The repair surgery based on the device of this utility model can effectively improve the tissue damage recovery effect, making the later tissue recovery faster and stronger.

[0044] Although the above methods are illustrated and described as a series of structures for simplicity of explanation, it should be understood and appreciated that these methods are not specifically limited because according to one or more embodiments, some structures can occur in different orders and / or concurrently with other actions from those illustrated and described herein or not illustrated and described herein but understandable to those skilled in the art.

[0045] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for human tissue replantation and repair, characterized in that: Includes storage bowl, tissue collection cover, grinding cover, pestle, filter bowl, and aspirator pump; The tissue collection cover is detachably sealed and closed on the opening of the storage bowl. The tissue collection cover is provided with two through holes, and a tissue debris suction pipe and an air extraction pipe are connected thereto. The other end of the tissue debris suction pipe is used to absorb tissue debris near the damaged tissue surgical area. The other end of the air extraction pipe is connected to an air extraction pump. A debris filter is provided at the connection between the air extraction pipe and the tissue collection cover. Tissue debris can be sucked out by the air extraction pump through the tissue debris suction pipe and blocked by the debris filter, remaining in the storage bowl. The grinding cover is detachably sealed and closed on the mouth of the storage bowl. An opening is provided at the center of the top of the grinding cover for dripping liquid nitrogen and for inserting the pestle into the storage bowl through the opening. The detachable sealing cover of the filter bowl is closed on the bowl mouth of the storage bowl, wherein the bowl mouth of the filter bowl is provided with a detachable filter mesh plate, and the filter bowl is connected to the bowl mouth of the storage bowl through the filter mesh plate.

2. The device for human tissue replantation and repair according to claim 1, characterized in that: The opening of the grinding cover is larger than the maximum diameter of the pestle, which can facilitate the liquid nitrogen device to add liquid nitrogen into the storage bowl; a soft silicone ring cover with an outer diameter matching the inner diameter of the opening is provided around the waist of the pestle, which can be sealed on the opening of the grinding cover; when the cover is closed, the bottom end of the pestle can touch the bottom of the storage bowl, and the soft silicone ring cover has elasticity.

3. The device for human tissue replantation and repair according to claim 2, characterized in that: The pestle is made of hard plastic and is integrally formed with a soft silicone ring cover through a double-injection molding process.

4. The device for human tissue replantation and repair according to claim 1, characterized in that: The filter mesh disk is specified to be used for filtering tissue debris particles with a particle size of less than 150 μm.

5. The device for human tissue replantation and repair according to claim 1, characterized in that: The tissue debris is cartilage debris scraped off the cartilage by an instrument, or part of the tissue of the ligament or tendon cut by surgical scissors.

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