HK40112959A - Cartilage separation filter assembly - Google Patents

Description

Filter assembly for cartilage separation

Technical Field

The present invention relates to a filter assembly for cartilage separation, and more specifically, to a filter assembly for cartilage separation connected to an arthroscopic cannula during arthroscopic joint surgery, and for separating cartilage from drained blood and the like for reuse.

Background Technology

Typically, an endoscope is a device inserted into the body to examine its interior, take pictures of the inside, or perform procedures such as surgery. In the case of arthroscopy, when arthroscopic examinations or endoscopic joint surgery are performed, an infusion supply tube and an infusion drain tube containing a mixture of fluids and blood are connected to the intubation tube.

Previously, when arthroscopy was used for examinations or surgery, cartilage that had detached from the joint was drained to the outside through an infusion tube. However, cartilage tissue from the human body can be easily implanted into the joint, so there is a need to realize its reuse.

Figure 1 shows an arthroscopic device, which includes: a cannula 1, an infusion supply tube 2, and a drain valve 3 for draining blood and infusion containing cartilage tissue; and a sheath 4 inserted into the cannula 1. Before inserting the sheath 4, the cannula 1 is first inserted into the joint using a needle inserted into the cannula 1. When the cannula 1 is inserted into the joint, after removing the needle, the sheath 4, connected to a power and signal transmission cable 7, is inserted to photograph and examine the joint in real time. Surgery can also be performed simultaneously if necessary. Infusion _L1 is supplied to the joint to be photographed through the infusion supply tube 5 connected to the supply valve 3. The joint is cleaned by the infusion _L1 injected into the joint, and the cleaned area is then photographed, treated, or surgically operated on. Infusion L2, which is a mixture of the cleansing infusion and blood containing cartilage tissue, is discharged to the outside through the drain valve along the infusion drain tube 6. Infusion _{L2 ,} which is a mixture of the discharged cartilage tissue, is stored in a storage tank and then discarded. Therefore, it is possible that reusable cartilage tissue may be discarded.

Therefore, there is a need for a tool or device that allows cartilage that is drained along with intravenous fluids during endoscopic examinations or surgeries to be reused.

Summary of the Invention

Technical issues

Therefore, the present invention is proposed to solve the problems of the prior art described above. The object of the present invention is to provide a filter assembly for cartilage separation, which can separate cartilage tissue discharged with the infusion during arthroscopic examination or surgery for reuse.

Technical solution

To achieve the above objectives, the present invention provides a filter assembly for cartilage separation, which is installed in an infusion drain tube to separate cartilage tissue. The infusion drain tube is connected to a drain valve, which is attached to an arthroscopic cannula. The filter assembly for cartilage separation is characterized by comprising: an inflow three-way valve connected to the infusion drain tube; a main pipe connected to the three-way valve for filtering cartilage tissue; a bypass pipe connected to the three-way valve; and an outflow three-way valve connected to the main pipe and the bypass pipe.

The present invention is characterized in that the main pipe includes: a main inlet pipe connected to an inflow three-way valve; a filter section connected to the main inlet pipe; and a main outlet pipe, with the inflow side connected to the filter section and the outflow side connected to the outflow three-way valve.

The present invention is characterized in that the filtration unit comprises: a filter tube having a predetermined diameter, such that a main inlet tube can be inserted to the inflow side for a predetermined length and attached to each other by heat fusion, and a main outlet tube can be inserted to the outflow side for a predetermined length and attached to each other by heat fusion; and a filter having an inlet formed by heat fusion between the main inlet tube and the filter tube at the front, and a mesh in the form of a bag extending for a predetermined length at the rear, for filtering cartilage tissue in an infusion containing blood and cartilage tissue flowing in from the main inlet tube.

The present invention is characterized in that the filter also includes a first anti-deformation tube inside the filter, which prevents the inflow side of the filter tube from sticking tightly due to the negative pressure generated by the pump located after the outflow three-way valve.

The present invention is characterized in that a second anti-deformation tube is further included inside the filter tube, which is located behind the filter to prevent the outflow side of the filter tube from being tightly pressed due to negative pressure.

Furthermore, to achieve the above objectives, the present invention provides a filter assembly for cartilage separation, which is installed in an infusion discharge tube and used for separating cartilage tissue. The infusion discharge tube is connected to a discharge valve, which is attached to an arthroscopic cannula. The filter assembly for cartilage separation is characterized by comprising: a Y-shaped inlet connection connected to the infusion discharge tube; a main pipe connected to the Y-shaped inlet connection and equipped with a main valve for regulating the flow of infusion fluid flowing through the Y-shaped inlet connection, thereby filtering the cartilage tissue; a bypass pipe connected to the Y-shaped inlet connection and equipped with a bypass valve for regulating the flow of infusion fluid; and a Y-shaped outlet connection connected to the main pipe and the bypass pipe.

The present invention is characterized in that the main pipe includes: a main inlet pipe connected to a Y-shaped inflow connection port and having a main valve; a filter section connected to the main inlet pipe; and a main outlet pipe, with the inflow side connected to the filter section and the outflow side connected to the Y-shaped outflow connection port.

The present invention is characterized in that the filtration unit comprises: a filter tube having a predetermined diameter, such that a main inlet tube can be inserted to the inflow side for a predetermined length and attached to each other by heat fusion, and a main outlet tube can be inserted to the outflow side for a predetermined length and attached to each other by heat fusion; and a filter having an inlet formed by heat fusion between the main inlet tube and the filter tube to form an inlet at the front, and a mesh in the form of a bag extending for a predetermined length at the rear, for filtering cartilage tissue in an infusion containing blood and cartilage tissue flowing in from the main inlet tube.

The present invention is characterized in that the filter also includes a first anti-deformation tube inside the filter, which prevents the inflow side of the filter tube from sticking tightly due to the negative pressure generated by the pump located behind the Y-shaped outflow connection.

The present invention is characterized in that a second anti-deformation tube is further included inside the filter tube, which is located behind the filter to prevent the outflow side of the filter tube from being tightly pressed due to negative pressure.

The effects of the invention

The present invention has the following advantages: when performing arthroscopic examinations or surgeries, the cartilage tissue that is discharged along with the infusion can be separated from the infusion and reused.

Furthermore, the present invention has the following advantages: when negative pressure is generated due to the operation of the pump, the filter tube will not be compressed, thereby allowing the infusion to flow smoothly.

Furthermore, the present invention has the following advantages: it is equipped with a bypass tube, thereby allowing direct drainage of the infusion without the need to separate cartilage tissue.

Attached Figure Description

Figure 1 is a three-dimensional view of an existing endoscopic cannula.

Figure 2 is a perspective view of a first embodiment of the filter assembly for cartilage separation according to the present invention.

Figure 3 is a perspective view of a second embodiment of the filter assembly for cartilage separation according to the present invention.

Figure 4 is a perspective view of the filter section of the filter assembly for cartilage separation according to the present invention.

Figure 5 is a partially cut perspective view of the filter section of the filter assembly for cartilage separation according to the present invention.

Figure 6 is a partially cut perspective view of the filter of the filter assembly for cartilage separation of the present invention.

Figure 7 is a cross-sectional view of the filter in Figure 6.

Figure 8 is a diagram showing the cartilage recovery status of cartilage tissue recovered from the filter assembly for cartilage separation of the present invention.

Detailed Implementation

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. This description is intended to enable those skilled in the art to easily understand the invention, and the technical concept and scope of the invention are not limited thereto.

Figure 1 is a perspective view of a conventional endoscopic cannula; Figure 2 is a perspective view of a first embodiment of the filter assembly for cartilage separation of the present invention; Figure 3 is a perspective view of a second embodiment of the filter assembly for cartilage separation of the present invention; Figure 4 is a perspective view of the filter portion of the filter assembly for cartilage separation of the present invention; Figure 5 is a partially cut perspective view of the filter portion of the filter assembly for cartilage separation of the present invention; Figure 6 is a partially cut perspective view of the filter of the filter assembly for cartilage separation of the present invention; Figure 7 is a cross-sectional view of the filter in Figure 6; and Figure 8 is a cartilage recovery state diagram showing the cartilage tissue recovered from the filter assembly for cartilage separation of the present invention.

In Figure 1, when the arthroscopic cannula 1 is inserted into the joint, a sleeve 4 is installed on the cannula 1, and the joint is imaged through the sleeve 4. To image the joint through the sleeve 4, the joint needs to be cleaned with an infusion. Therefore, the infusion supply valve 2 is opened, and the infusion _L1 supplied from the infusion supply tube 5 is injected into the joint through the cannula 1. After cleaning, the injected infusion is drained again through the cannula 1 towards the infusion discharge tube 6. The infusion used to clean the joint may include blood and cartilage tissue, etc. The infusion discharge valve 3 is opened, and the infusion _L2 , which is a mixture of the above-mentioned substances, is discharged through the infusion discharge tube 6. In this invention, a method for separating cartilage tissue from the infusion _L2 mixed with cartilage tissue, etc., for reuse is disclosed.

Figure 2 is a perspective view of a first embodiment 10 of the filter assembly for cartilage separation according to the present invention. Referring to Figures 2, 4 to 7, a detailed description of the first embodiment 10 of the filter assembly for cartilage separation according to the present invention will be provided.

As shown in Figure 2, the filter assembly 10 for cartilage separation includes: an inflow three-way valve 11 connected to the infusion discharge tube 6; a main pipe 12 connected to the inflow three-way valve 11 for filtering cartilage tissue; a bypass pipe 13 connected to the inflow three-way valve 11; and an outflow three-way valve 14 connected to the main pipe 12 and the bypass pipe 13.

As shown in Figures 4 and 5, the main pipe section 12 includes: a main flow inlet pipe 121 connected to an inflow three-way valve 11; a filter section 122 connected to the main flow inlet pipe 121; and a main flow outlet pipe 123, connected to the filter section 122 on the inflow side and to the outlet three-way valve 14 on the outflow side. As shown, the diameter of the filter section 122 is larger than the diameters of the main flow inlet pipe 121 and the main flow outlet pipe 123, so that it can be inserted into the main flow inlet pipe 121 and the main flow outlet pipe 123 and heat-fused together for mutual attachment. Specifically, the filtration unit 122 includes: a filter tube 1221 having a predetermined diameter, such that the main inlet tube 121 can be inserted to the inflow side for a predetermined length and attached to each other by heat fusion, and the main outlet tube 123 can be inserted to the outflow side for a predetermined length and attached to each other by heat fusion; and a filter 1222 having an inlet 1222-1 formed by heat fusion between the main inlet tube 121 and the filter tube 1221, and a rearwardly formed by a bag-shaped mesh 1222-2 extending for a predetermined length, for filtering cartilage tissue in the infusion _L2 containing blood and cartilage tissue flowing in from the main inlet tube 121. The diameter of the filter tube 1221 is larger than the diameter of the main inlet tube 121 and the main outlet tube 123. After the main inlet tube 121 and the main outlet tube 123 are inserted to a predetermined length in front of and behind the filter tube 1221, they are attached to each other by heat fusion, thereby forming an outlet side adhesive part 1221-2 based on the inflow side adhesive part 1221-1 of the main inlet tube 121 and the main outlet tube 123.

As shown in Figure 5, after the filter 1222 is inserted into the filter tube 1221, it is fixed together with the main inlet tube 121 by heat fusion. Thus, the filter 1222 forms an inlet 1222-1 through the main inlet tube 121 and a bag-shaped mesh 1222-2, thereby filtering the cartilage tissue contained in the flowing infusion _L2 . A pump (not shown) can be attached to the end of the infusion outlet tube 6. When the pump is running, since the diameter of the filter tube 1221 is larger than the diameter of the infusion outlet tube 6, a negative pressure is generated in the filter tube 1221 by the pressure applied through the infusion outlet tube 6. When negative pressure is applied to the filter tube 1221, the filter tube 1221 can be compressed. When the filter tube 1221 is compressed, the infusion cannot be smoothly discharged through the filter tube 1221. Therefore, when negative pressure is applied to the filter tube 1221, a first anti-deformation tube 1223 of a predetermined length, which is in the shape of a circular tube, is inserted into the filter tube 1221 to prevent deformation. The first anti-deformation tube 1223 is provided on the outflow side to prevent the filter tube on the outflow side from being compressed.

Figures 6 and 7 show the filter 1222. The filter 1222 is a bag-shaped mesh formed by a defined grid. After the main inlet pipe 121 is inserted into the filter 1222, they are heat-fused together, thus forming an inlet 1222-1 through the main inlet pipe 121. A pump (not shown) can be attached to the end of the infusion outlet pipe 6. When the pump is running, since the diameter of the filter pipe 1221 is larger than the diameter of the infusion outlet pipe 6, a negative pressure can be generated in the filter pipe 1221 by means of the pressure applied through the infusion outlet pipe 6. When a negative pressure is applied to the filter pipe 1221, the filter pipe 1221 may be compressed. When the filter pipe 1221 is compressed, the infusion cannot be discharged smoothly through the filter pipe 1221. Therefore, when negative pressure is applied to the filter tube 1221, a second anti-deformation tube 1222-3 is inserted inside the filter 1222 to prevent deformation. The second anti-deformation tube 1222-3 prevents the filter tube on the inflow side from deforming.

Figure 3 is a perspective view of a second embodiment 10' of the filter assembly for cartilage separation according to the present invention. Referring to Figures 3 and 4 through 7, a detailed description of the second embodiment 10' of the filter assembly for cartilage separation according to the present invention will be provided.

As shown in Figure 3, the filter assembly 10 for cartilage separation includes: a Y-shaped inlet port 11' connected to the infusion outlet pipe 6; a main pipe 12' connected to the Y-shaped inlet port 11', having a main valve 124' for regulating the flow of infusion _L2 flowing through the Y-shaped inlet port 11', thereby filtering the cartilage tissue; a bypass pipe 13' connected to the Y-shaped inlet port 11', having a bypass valve 131' for regulating the flow of infusion _L2 ; and a Y-shaped outlet port 14' connected to the main pipe 12' and the bypass pipe 13'.

As shown in Figures 4 and 5, the main pipe section 12' includes: a main inlet pipe 121' connected to a Y-shaped inflow connector 11'; a filter section 122' connected to the main inlet pipe 121'; and a main outlet pipe 123', connected to the filter section 122' on the inflow side and connected to the Y-shaped outflow connector 14' on the outflow side. As shown, the diameter of the filter section 122' is larger than the diameters of the main inlet pipe 121' and the main outlet pipe 123', so that the main inlet pipe 121' and the main outlet pipe 123' can be inserted into each other and thermally fused together for mutual adhesion. Specifically, the filtration section 122' includes: a filter tube 1221' having a predetermined diameter, such that the main inlet tube 121' can be inserted to the inflow side for a predetermined length and attached to each other by heat fusion, and the main outlet tube 123' can be inserted to the outflow side for a predetermined length and attached to each other by heat fusion; and a filter 1222', which forms an inlet 1222-1' by heat fusion between the main inlet tube 121' and the filter tube 1221', and is formed by a bag-shaped mesh 1222-2' extending for a predetermined length, filtering cartilage tissue in the infusion _L2 containing blood and cartilage tissue flowing in from the main inlet tube 121'. The diameter of the filter tube 1221' is larger than the diameter of the main inlet tube 121' and the main outlet tube 123'. After the main inlet tube 121' and the main outlet tube 123' are inserted to a specified length in front of and behind the filter tube 1221', they are attached to each other by heat fusion, thereby forming an outlet side adhesive part 1221-2' based on the inflow side adhesive part 1221-1' of the main inlet tube 121' and the main outlet tube 123'.

As shown in Figure 5, after the filter 1222' is inserted into the inside of the filter tube 1221', it is fixed together with the main inlet tube 121' by heat fusion. Thus, the filter 1222' forms an inlet 1222-1' through the main inlet tube 121', which is formed by a bag-shaped mesh 1222-2', thereby filtering the cartilage tissue contained in the flowing infusion _L2 . A pump (not shown) can be attached to the end of the infusion outlet tube 6. When the pump is running, since the diameter of the filter tube 1221' is larger than the diameter of the infusion outlet tube 6, a negative pressure is generated in the filter tube 1221' by the pressure applied through the infusion outlet tube 6. When negative pressure is applied to the filter tube 1221', the filter tube 1221' can be compressed. When the filter tube 1221' is compressed, the infusion cannot be smoothly discharged through the filter tube 1221'. Therefore, when negative pressure is applied to the filter tube 1221', a first anti-deformation tube 1223' of a specified length in the shape of a circular tube is inserted into the filter tube 1221' to prevent deformation. The first anti-deformation tube 1223' is provided on the outflow side to prevent the filter tube on the outflow side from being compressed.

Figures 6 and 7 show the filter 1222'. The filter 1222' is a bag-shaped mesh formed by a defined grid, which is heat-fused together after the main inlet pipe 121' is inserted into the filter 1222', thus forming an inlet 1222-1' through the main inlet pipe 121'. A pump (not shown) can be attached to the end of the infusion outlet pipe 6. When the pump is running, since the diameter of the filter pipe 1221' is larger than the diameter of the infusion outlet pipe 6, a negative pressure is generated in the filter pipe 1221' by means of the pressure applied through the infusion outlet pipe 6. When the negative pressure is applied to the filter pipe 1221', the filter pipe 1221' can be compressed, and when the filter pipe 1221' is compressed, the infusion cannot be discharged smoothly through the filter pipe 1221'. Therefore, when negative pressure is applied to the filter tube 1221', in order to prevent deformation, a second anti-deformation tube 1222-3' is inserted inside the filter 1222'. The second anti-deformation tube 1222-3' prevents the filter tube on the inflow side from deforming.

Figure 8 illustrates the process of recovering cartilage tissue 20 when the filters 1222 and 1222' of the filter sections 122 and 122' collect cartilage tissue 20. Part (a) of Figure 8 shows the filter tubes 1221 and 1221' of the filter sections 122 and 122' being cut with scissors 8. Since the cartilage tissue 20 inside the filter sections 122 and 122' needs to be collected externally, the filters 1222 and 1222' are cut and collected with scissors 8. As shown in part (b) of Figure 8, the second anti-deformation tubes 1222-3 and 1222-3' are first removed from the collected filters 1222 and 1222'. After removing the second anti-deformation tubes 1222-3 and 1222-3', the cartilage tissue 20 in the filters 1222 and 1222' is recovered using a tool, and the recovered cartilage tissue 20 is reinjected into the joint portion for reuse.

As described above, although several embodiments have been illustrated, those skilled in the art to which this invention pertains can embody it in many different forms without departing from the spirit and scope of this invention. Therefore, the above embodiments are illustrative and not limiting, and all embodiments within the scope of the appended claims and their equivalents are within the scope of this invention.

Industrial availability

This invention relates to a filter assembly for cartilage separation, which, when used in arthroscopic joint surgery, is connected to an arthroscopic cannula to separate cartilage from the drained blood and other substances for reuse in the patient. This invention is highly industrially viable.

Claims (10)

1. A filter assembly for cartilage separation, connected to an infusion drain tube for separating cartilage tissue, the infusion drain tube being connected to a drain valve attached to an arthroscopic cannula, the filter assembly for cartilage separation being characterized in that it comprises: The inflow is connected to the three-way valve and the aforementioned infusion discharge pipe; The main control unit, connected to the aforementioned inflow three-way valve, filters the cartilage tissue; The bypass pipe is connected to the aforementioned inflow three-way valve; and The outflow three-way valve is connected to the aforementioned main pipe section and the aforementioned bypass pipe section. 2. The filter assembly for cartilage separation according to claim 1, characterized in that the main control section comprises: The main inlet pipe is connected to the aforementioned inlet three-way valve; The filter section is connected to the aforementioned main inlet pipe; and The main outlet pipe is connected to the filter section on the inflow side and to the outlet three-way valve on the outflow side. 3. The filter assembly for cartilage separation according to claim 2, characterized in that the filter section comprises: A filter tube having a specified diameter, allowing the main inlet tube to be inserted to the inflow side for a specified length and bonded together by heat fusion, and the main outlet tube to be inserted to the outflow side for a specified length and bonded together by heat fusion; and The filter has an inlet formed by heat fusion between the main inlet tube and the filter tube, and a mesh in the shape of a bag extending a specified length, for filtering cartilage tissue in the infusion containing blood and cartilage tissue flowing in from the main inlet tube. 4. The filter assembly for cartilage separation according to claim 3, characterized in that the filter further includes a first anti-deformation tube inside the filter, which prevents the inflow side of the filter tube from sticking tightly due to the negative pressure generated by the pump located after the outflow three-way valve. 5. The filter assembly for cartilage separation according to claim 4, characterized in that a second anti-deformation tube is further included inside the filter tube, disposed behind the filter to prevent the outflow side of the filter tube from being tightly adhered due to the negative pressure. 6. A filter assembly for cartilage separation, installed in an infusion drain tube and used for separating cartilage tissue, the infusion drain tube being connected to a drain valve, the drain valve being attached to an arthroscopic cannula, the filter assembly for cartilage separation being characterized in that it comprises: The Y-shaped inlet is connected to the aforementioned infusion outlet tube; The main unit, connected to the aforementioned Y-shaped inlet port, is equipped with a main valve for regulating the flow of infusion fluid flowing in through the aforementioned Y-shaped inlet port, thereby filtering cartilage tissue; The bypass section, connected to the aforementioned Y-shaped inlet port, includes a bypass valve for regulating the infusion flow; and The Y-shaped outlet connection is connected to the aforementioned main pipe section and the aforementioned bypass pipe section. 7. The filter assembly for cartilage separation according to claim 6, characterized in that the main control section comprises: The main inlet pipe is connected to the aforementioned Y-shaped inlet connection port and is equipped with the aforementioned main valve; The filter section is connected to the aforementioned main inlet pipe; and The main outlet pipe is connected to the filter section on the inflow side and to the Y-shaped outlet port on the outflow side. 8. The filter assembly for cartilage separation according to claim 7, characterized in that the filter section comprises: A filter tube having a specified diameter, allowing the main inlet tube to be inserted to the inflow side for a specified length and bonded together by heat fusion, and the main outlet tube to be inserted to the outflow side for a specified length and bonded together by heat fusion; and The filter has an inlet formed by heat fusion between the main inlet tube and the filter tube, and a mesh in the shape of a bag extending a specified length, for filtering cartilage tissue in the infusion containing blood and cartilage tissue flowing in from the main inlet tube. 9. The filter assembly for cartilage separation according to claim 8, characterized in that the filter further includes a first anti-deformation tube inside the filter, which prevents the inflow side of the filter tube from sticking tightly due to the negative pressure generated by the pump located behind the Y-shaped outflow connection. 10. The filter assembly for cartilage separation according to claim 9, characterized in that a second anti-deformation tube is further included inside the filter tube, disposed behind the filter to prevent the outflow side of the filter tube from being tightly adhered due to the negative pressure.