Self-exhaust type synovial membrane biopsy rotary cutting device

Abstract

The invention discloses a self-exhaust type synovial membrane biopsy rotary-cut device, and relates to the technical field of synovial membrane biopsy rotary-cut, the self-exhaust type synovial membrane biopsy rotary-cut device comprises a main body mechanism, the main body mechanism comprises a holding shell, the inner wall of the holding shell is fixedly connected with a connecting pipe, the left end of the connecting pipe is fixedly connected with a negative pressure pipe, and a rotary-cut filtering mechanism is arranged in the holding shell; the rotary-cut filtering mechanism comprises a sliding film rotary-cut unit, the sliding film rotary-cut unit is located in the holding shell and used for improving the precision of sliding film rotary-cut, the rotary-cut filtering mechanism further comprises a filtering and intercepting unit, the filtering and intercepting unit is located in the sliding film rotary-cut unit, and the filtering and intercepting unit is used for intercepting the sliding film rotary-cut unit. According to the self-exhausting type synovial membrane biopsy rotary-cut device, by arranging the rotary-cut filtering mechanism and the cutting and cleaning structure, the rotary-cut efficiency is improved, fragments of synovial membrane tissue blocked in the negative pressure pipe can be conveniently filtered, and the using effect of the rotary-cut device is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of synovial biopsy rotary cutting, in particular to a self-exhausting synovial biopsy rotary cutting device. Background Art

[0002] Synovial biopsy is a medical technology used to diagnose and study synovial diseases. Specifically, it uses a specific excision device to enter the joint cavity or the synovial tissue site percutaneously or with the assistance of an arthroscopy. The excision device usually has a rotatable tool that can accurately cut and obtain a small portion of synovial tissue samples. After these samples are taken out, they are sent to the pathology laboratory for analysis to determine the pathological changes of the synovium, such as whether there is inflammation, infection, tumor or other abnormal lesions.

[0003] However, the existing rotary cutting tools directly absorb the damaged synovium into the cavity inside the rotary cutting tool through negative pressure when in use, and the rotating tool rotary cuts the synovium to remove the damaged synovium. When in use, the rotary cutting tool is generally an arc-shaped piece, and the arc-shaped slice is an integral cutting piece. The absorbed synovium is directly rotary cut as a whole, resulting in a relatively large synovial rotary cutting tissue, which is easy to cause blockage of the negative pressure cavity inside the rotary cutting tool. Cutting the entire synovial tissue by the arc-shaped rotary cutting tool not only easily increases the damage to the synovial tissue and reduces the grip of the rotary cutting tool, but also reduces the cutting efficiency of the synovial tissue to a certain extent. Rotating a larger synovial tissue may also cause blockage of the negative pressure pipeline, resulting in a waste of time to clean the blockage of the internal negative pressure pipeline, thereby reducing the rotary cutting efficiency.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing self-venting synovial biopsy excision devices on the market, and even if they can be solved, they need to be solved with the cooperation of external tools, which makes it impossible to achieve the desired effect. Therefore, we propose a self-venting synovial biopsy excision device. Summary of the invention

[0005] The object of the present invention is to provide a self-exhausting synovial biopsy and rotary cutting device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a self-exhausting synovial biopsy peeling device, comprising a main body mechanism, the main body mechanism comprising a grip shell, the inner wall of the grip shell is fixedly connected with a connecting tube, the left end of the connecting tube is fixedly connected with a negative pressure tube, and the grip shell is provided with a peeling filter mechanism inside;

[0007] The peeling and filtering mechanism comprises a synovial peeling unit, the synovial peeling unit is located inside the grip shell, and the synovial peeling unit is used to increase the accuracy of synovial peeling;

[0008] The rotary cutting and filtering mechanism further includes a filtering and intercepting unit, which is located inside the synovial rotary cutting unit and is used in conjunction with the synovial rotary cutting unit to intercept and filter larger synovial tissue fragments inside the negative pressure channel;

[0009] A segmentation and cleaning mechanism is provided inside the synovial peeling unit. The segmentation and cleaning mechanism is used in conjunction with the peeling and filtering mechanism. The segmentation and cleaning mechanism is used to further cut larger synovial tissue fragments.

[0010] Preferably, a hanging ring is fixedly connected to the left side surface of the grip shell, a plurality of rubber strips are fixedly connected to the outer surface of the grip shell, and a resistance plate is fixedly connected to the upper surface of the grip shell.

[0011] Preferably, the synovial peeling unit includes an inner shell, the outer surface of the inner shell is fixedly connected to the inner wall of the grip shell, the outer surface of the inner shell is fixedly connected to a first stabilizing plate, the outer surface of the first stabilizing plate is fixedly connected to the inner wall of the grip shell, the inner wall of the inner shell is fixedly connected to a first ball bearing, the inner ring of the first ball bearing is fixedly connected to a peeling tube, an outer shell is provided on the right side of the inner shell, the inner wall of the outer shell is fixedly connected to a second ball bearing, the inner ring of the second ball bearing is in contact with the outer surface of the peeling tube, the left side of the outer shell is in contact with the right side of the inner shell, the inner wall of the outer shell and the inner wall of the inner shell are commonly threadedly connected with three first fixing bolts, and the inner wall of the grip shell is respectively fixed A DC brushless motor and a third ball bearing are connected, the output end of the DC brushless motor and the inner ring of the third ball bearing are commonly fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to a first gear, the outer surface of the rotary cutting tube is fixedly connected to a second gear, the outer surface of the second gear is meshed with the outer surface of the first gear, the inner wall of the rotary cutting tube is fixedly connected to a fifth ball bearing, the inner ring of the fifth ball bearing is fixedly connected to a connecting tube, the inner wall of the connecting tube is fixedly connected to a sealing ring, the inner wall of the sealing ring is fixedly connected to the outer surface of the connecting tube, the inner wall of the rotary cutting tube is fixedly connected to two arc slices, and the inner wall of each of the arc slices is fixedly connected to a plurality of transverse slices and a plurality of circular slices.

[0012] Preferably, a second stabilizing plate is fixedly connected to the inner wall of the grip shell, and the inner wall of the second stabilizing plate is fixedly connected to the outer surface of the connecting pipe.

[0013] Preferably, a third stabilizing plate is fixedly connected to the inner wall of the grip shell, a fourth ball bearing is fixedly connected to the inner wall of the third stabilizing plate, and an inner ring of the fourth ball bearing is fixedly connected to the outer surface of the rotary cutting tube.

[0014] Preferably, a reinforcement ring is fixedly connected to the outer surface of the inner shell, and the left side of the reinforcement ring is fixedly connected to the right side of the grip shell.

[0015] Preferably, the filtering interception unit includes an arc-shaped connecting shell, the outer surface of the arc-shaped connecting shell and the outer surface of the rotary cutting tube are fixedly connected with six fixing plates, the inner walls of every two of the fixing plates are commonly fixedly connected with a second fixing bolt, the front of the rotary cutting tube is provided with eight sealing grooves, the inside of each of the sealing grooves is clamped with a sealing column, one end of each of the sealing columns is fixedly connected to the back side of the arc-shaped connecting shell, the inner wall of the arc-shaped connecting shell is respectively fixedly connected with a prismatic filter net, an elliptical filter net and a cone filter net, and the inner wall of the grip shell is fixedly connected with an ultrasonic transducer.

[0016] Preferably, the outer surface of the prismatic filter screen, the outer surface of the elliptical filter screen and the outer surface of the cone filter screen are fixedly connected with two reinforcement strips, and the outer surface of each reinforcement strip is fixedly connected to the inner wall of the arc-shaped connecting shell.

[0017] Preferably, the segmentation and cleaning mechanism includes three support plates, both ends of each support plate are fixedly connected to the inner wall of the arc-shaped connecting shell, the left side of each support plate is fixedly connected to two connecting parts, the outer surface of each connecting part is rotatably connected to a centrifugal plate, the left side of each centrifugal plate is fixedly connected to a plurality of connecting columns, the left end of each connecting column is fixedly connected to a brush head, the inner wall of the rotary cutting tube is fixedly connected to four gradient blades, the inner wall of the rotary cutting tube is fixedly connected to four fixing rings, and the inner wall of each fixing ring is fixedly connected to a plurality of single-sided blades.

[0018] Preferably, the outer surfaces of the four fixing rings are commonly fixedly connected with three positioning strips, and the outer surface of each positioning strip is fixedly connected to the inner wall of the rotary cutting tube.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention can effectively perform rotary cutting on synovial tissue by setting up a synovial rotary cutting unit. By combining arc slicing with transverse slicing and circular slicing, the gripping force of the synovial tissue can be increased on the basis of arc slicing, so that the synovial tissue can be quickly cut conveniently. In combination with a DC brushless motor, stable power output ensures that the rotary cutting tool can quickly and accurately cut the synovial tissue during surgery, thereby increasing the rotary cutting efficiency of the synovial tissue.

[0021] 2. The present invention provides a filtering and intercepting unit, which can filter the cut synovial tissue fragments on the basis of the synovial excision unit to prevent larger synovial tissue fragments from clogging the negative pressure tube, so that the synovial excision unit can continue to cut the synovial lesions of the patient. The filtering and intercepting unit adopts a graded filtration method to effectively reduce the probability of clogging of synovial tissue fragments and further increase the excision efficiency.

[0022] 3. The present invention provides a segmentation and cleaning mechanism, which can cooperate with the rotary cutting and filtering mechanism to increase the integrity of the rotary cutting and filtering mechanism, effectively cut the synovial tissue fragments on the basis of the rotary cutting of the synovial rotary cutting unit, and clean the synovial tissue fragments intercepted by the filtering and intercepting unit, thereby increasing the dredging effect of the synovial tissue fragments and preventing the large synovial tissue fragments from easily accumulating and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic cross-sectional structural diagram of the grip shell of the present invention;

[0025] Figure 3 It is a schematic cross-sectional structural diagram of the external shell of the present invention;

[0026] Figure 4 It is a schematic cross-sectional structure diagram of the internal shell of the present invention;

[0027] Figure 5 It is a schematic cross-sectional structure diagram of the connecting pipe of the present invention;

[0028] Figure 6 It is a schematic cross-sectional structure diagram of the arc-shaped connecting shell of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the centrifugal plate of the present invention;

[0030] Figure 8 It is a schematic diagram of the cross-sectional structure of the rotary cut tube of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the single-sided blade of the present invention.

[0032] In the figure: 1. main body; 11. grip shell; 12. connecting pipe; 13. negative pressure pipe; 14. hanging ring; 15. rubber strip; 16. resistance plate; 2. peeling and filtering mechanism; 21. synovial peeling unit; 2101. external shell; 2102. second stabilizing plate; 2103. connecting pipe; 2104. fourth ball bearing; 2105. third ball bearing; 2106. first gear; 2107. DC brushless motor; 2108. internal shell; 2109. reinforcement ring; 2110. peeling tube; 2111. first stabilizing plate; 2112. second gear; 2113. rotating shaft; 2114. third stabilizing plate; 2115. second ball bearing; 2116. first fixing bolt; 2117. arc slice; 21 18. Transverse slice; 2119. Circular slice; 2120. First ball bearing; 2121. Fifth ball bearing; 2122. Sealing ring; 22. Filter interception unit; 2201. Ultrasonic transducer; 2202. Arc-shaped connecting shell; 2203. Fixing plate; 2204. Sealing groove; 2205. Reinforcement strip; 2206. Sealing column; 2207. Prismatic filter; 2208. Elliptical filter; 2209. Cone filter; 2210. Second fixing bolt; 3. Splitting and cleaning mechanism; 301. Support plate; 302. Centrifugal plate; 303. Connector; 304. Connecting column; 305. Brush head; 306. Fixing ring; 307. Gradient blade; 308. Single-sided blade; 309. Positioning strip. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The present invention provides a technical solution: a self-exhausting synovial biopsy peeling device, comprising a main body mechanism 1, the main body mechanism 1 comprises a grip shell 11, the inner wall of the grip shell 11 is fixedly connected with a connecting tube 12, the left end of the connecting tube 12 is fixedly connected with a negative pressure tube 13, and the grip shell 11 is provided with a peeling filter mechanism 2 inside;

[0035] The peeling and filtering mechanism 2 comprises a synovial peeling unit 21 . The synovial peeling unit 21 is located inside the grip shell 11 . The synovial peeling unit 21 is used to increase the accuracy of synovial peeling.

[0036] As a further limitation of the rotary cutting filter mechanism 2 of the present invention, the synovial rotary cutting unit 21 includes an inner shell 2108, the outer surface of the inner shell 2108 is fixedly connected to the inner wall of the grip shell 11, the outer surface of the inner shell 2108 is fixedly connected to a first stabilizing plate 2111, the outer surface of the first stabilizing plate 2111 is fixedly connected to the inner wall of the grip shell 11, the inner wall of the inner shell 2108 is fixedly connected to a first ball bearing 2120, the inner ring of the first ball bearing 2120 is fixedly connected to a rotary cutting tube 2110, an outer shell 2101 is provided on the right side of the inner shell 2108, and the inner wall of the outer shell 2101 is fixedly connected A second ball bearing 2115 is connected, the inner ring of the second ball bearing 2115 contacts the outer surface of the rotary cutting tube 2110, the left side of the external shell 2101 contacts the right side of the internal shell 2108, the inner wall of the external shell 2101 and the inner wall of the internal shell 2108 are threadedly connected with three first fixing bolts 2116, the inner wall of the grip shell 11 is respectively fixedly connected with a DC brushless motor 2107 and a third ball bearing 2105, the output end of the DC brushless motor 2107 and the inner ring of the third ball bearing 2105 are fixedly connected with a rotating shaft 2113, the outer surface of the rotating shaft 2113 The first gear 2106 is fixedly connected to the surface of the rotary cutting tube 2110, the second gear 2112 is fixedly connected to the outer surface of the second gear 2112, the outer surface of the second gear 2112 is meshed with the outer surface of the first gear 2106, the inner wall of the rotary cutting tube 2110 is fixedly connected to the fifth ball bearing 2121, the inner ring of the fifth ball bearing 2121 is fixedly connected to the connecting tube 2103, the inner wall of the connecting tube 2103 is fixedly connected to the sealing ring 2122, the inner wall of the sealing ring 2122 is fixedly connected to the outer surface of the connecting tube 12, the inner wall of the rotary cutting tube 2110 is fixedly connected to two arc slices 2117, each arc The inner wall of the slice 2117 is fixedly connected with a plurality of transverse slices 2118 and a plurality of circular slices 2119. By setting the synovial peeling unit 21, the synovial tissue can be peeled effectively. By combining the arc slice 2117 with the transverse slice 2118 and the circular slice 2119, the gripping force of the synovial tissue can be increased on the basis of the arc slice 2117, so that the synovial tissue can be cut quickly and conveniently. In combination with the DC brushless motor 2107, the stable power output ensures that the peeling tool can quickly and accurately cut the synovial tissue during the operation, thereby increasing the peeling efficiency of the synovial tissue.

[0037] See also Figure 1 The left side of the grip shell 11 is fixedly connected with a hanging ring 14, the outer surface of the grip shell 11 is fixedly connected with a plurality of rubber strips 15, and the upper surface of the grip shell 11 is fixedly connected with a resistance plate 16. The hanging ring 14 can be used to conveniently hang the grip shell 11, and the rubber strips 15 can increase the comfort and anti-slip effect of the hand holding the grip shell 11, and the resistance plate 16 can limit the position of the hand;

[0038] See also Figure 2 The inner wall of the grip shell 11 is fixedly connected with a second stabilizing plate 2102, and the inner wall of the second stabilizing plate 2102 is fixedly connected with the outer surface of the connecting pipe 2103. The second stabilizing plate 2102 can increase the stability of the connecting pipe 2103 and prevent the occurrence of deviation and shaking;

[0039] See also Figure 2 The inner wall of the grip shell 11 is fixedly connected with a third stabilizing plate 2114, the inner wall of the third stabilizing plate 2114 is fixedly connected with a fourth ball bearing 2104, the inner ring of the fourth ball bearing 2104 is fixedly connected with the outer surface of the rotary cutting tube 2110, and the third stabilizing plate 2114 and the fourth ball bearing 2104 can conveniently increase the stability of the rotation of the rotary cutting tube 2110, so as to facilitate the accurate rotary cutting of the synovial tissue of the patient;

[0040] See also Figure 2 The outer surface of the inner shell 2108 is fixedly connected with a reinforcement ring 2109, and the left side of the reinforcement ring 2109 is fixedly connected to the right side of the grip shell 11. Through the reinforcement ring 2109, the connection between the inner shell 2108 and the surface of the grip shell 11 can be conveniently increased, thereby further increasing the stability of the inner shell 2108 and ensuring the stability of the rotation of the rotary cutting tube 2110.

[0041] The specific implementation method of this embodiment is: first connect the DC brushless motor 2107 to the external power supply. For smaller joints such as finger joints, the diameter may need to be controlled at about 1 to 1.5 mm to minimize damage to the joints. At the same time, sufficient specimens can be obtained through delicate operations. For larger joints such as knee joints and hip joints, it is generally not advisable to exceed 2.5 mm. Then connect the negative pressure tube 13 to the external negative pressure equipment. When it is necessary to perform rotary cutting on the patient's synovial tissue fragments, the arthroscope can be inserted into the joint cavity through a small incision, allowing the doctor to directly observe the morphology, color, texture, etc. of the cartilage, synovium, ligaments, meniscus and other tissues in the joint. On this basis, a small incision is made at the patient's joint to directly insert the external shell 2101 through The device is inserted through the wound and the damaged synovial tissue is directly excised under observation with the aid of an arthroscopy. The negative pressure device is started and suction is generated through the negative pressure tube 13. The suction acts on the synovial tissue fragments through the connecting tube 12 and the opening at one end of the excision tube 2110. The synovial tissue fragments enter the excision tube 2110 through the negative pressure suction. The operation of the DC brushless motor 2107 is controlled. Compared with ordinary motors, the DC brushless motor 2107 has a more stable power output, which increases the excision efficiency. The DC brushless motor 2107 can drive the rotating shaft 2113 to rotate inside the third ball bearing 2105. The rotating shaft 2113 drives the first gear 2106 to rotate, and the first gear 2106 drives the second gear 2112 to rotate. 12 directly drives the rotary cutting tube 2110 to rotate, and the rotary cutting tube 2110 can directly rotate inside the first ball bearing 2120 and the second ball bearing 2115, and then the rotary cutting tube 2110 drives the two arc slices 2117 to rotate, and the synovial tissue fragments adsorbed inside the rotary cutting tube 2110 are rotary cut, and the cutting groove inside the arc slice 2117 is provided with a transverse slice 2118 and a circular slice 2119, and the circular slice 2119 is arranged perpendicular to the transverse slice 2118. On the basis of the cutting of the arc slice 2117, a plurality of circular slices 2119 are in contact with the synovial tissue fragments, which can increase the grip of the arc slice 2117 and further separate the synovial tissue fragments. Finally, the transverse slice 2118 is used to cut the synovial tissue fragments. The segmented synovial tissue fragments are further excised and segmented, which effectively increases the excision efficiency. The excision synovial tissue fragments directly enter the connecting tube 12 through the negative pressure inside the excision tube 2110, and are discharged through the connecting tube 12, the connecting tube 2103 and the external negative pressure tube 13. A fifth ball bearing 2121 is provided on the outside of the connecting tube 2103. The excision tube 2110 can rotate on the surface of the connecting tube 2103 through the fifth ball bearing 2121. The sealing ring 2122 can increase the sealing between the connecting tube 12 and the connecting tube 2103. The diseased synovial tissue can be excised reciprocally. In order to control the amount of bleeding as much as possible, measures can be taken in three stages: before the operation, during the operation and after the operation. A detailed evaluation should be conducted before the operation.This includes checking the patient's coagulation function, blood routine and other indicators, correcting any abnormalities, and using imaging examinations to understand the distribution of synovial blood vessels and the extent of lesions to provide a basis for the surgical plan. During the operation, the doctor uses fine operation techniques to accurately control the depth and angle of the rotary cutting device to avoid excessive cutting and damaging blood vessels. The rotary cutting speed is properly controlled to reduce the impact on the tissue. Radiofrequency ablation technology can be used to coagulate small blood vessels or hemostatic drugs can be applied locally. After the operation, a pressure bandage is applied with moderate force to reduce bleeding and exudation. Early cold compresses can shrink blood vessels, reduce swelling and control bleeding. The affected limb is raised to promote blood return and reduce congestion and edema. The amount of bleeding can be controlled as much as possible during multiple rotary cuttings of the synovial membrane to improve the safety and effectiveness of the operation.

[0042] Example 2: Please refer to Figure 6 The present invention provides a technical solution: a self-exhausting synovial biopsy peeling device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The peeling filter mechanism 2 also includes a filtering interception unit 22, which is located inside the synovial peeling unit 21. The filtering interception unit 22 is used in conjunction with the synovial peeling unit 21. The filtering interception unit 22 is used to intercept and filter larger synovial tissue fragments inside the negative pressure channel.

[0043] As a further limitation of the rotary cutting filter mechanism 2 of the present invention, the filtering interception unit 22 includes an arc-shaped connecting shell 2202, and the outer surface of the arc-shaped connecting shell 2202 and the outer surface of the rotary cutting tube 2110 are fixedly connected with six fixing plates 2203, and the inner walls of every two fixing plates 2203 are commonly fixedly connected with a second fixing bolt 2210, and the front of the rotary cutting tube 2110 is provided with eight sealing grooves 2204, and the interior of each sealing groove 2204 is clamped with a sealing column 2206, and one end of each sealing column 2206 is fixedly connected to the back side of the arc-shaped connecting shell 2202, and the arc-shaped connecting shell 2202 is fixedly connected to the outer surface of the rotary cutting tube 2110. The inner wall is respectively fixedly connected with a prismatic filter 2207, an elliptical filter 2208 and a vertebral filter 2209, and the inner wall of the grip shell 11 is fixedly connected with an ultrasonic transducer 2201. By setting a filtering interception unit 22, the cut synovial tissue fragments can be filtered on the basis of the synovial excision unit 21 to prevent larger synovial tissue fragments from clogging the negative pressure tube 13, so that the synovial excision unit 21 can continue to cut the synovial lesions of the patient. The filtering interception unit 22 adopts a graded filtering method to effectively reduce the probability of clogging of synovial tissue fragments and further increase the excision efficiency.

[0044] See also Figure 6The outer surface of the prismatic filter 2207, the outer surface of the elliptical filter 2208 and the outer surface of the cone filter 2209 are fixedly connected with two reinforcement strips 2205. The outer surface of each reinforcement strip 2205 is fixedly connected to the inner wall of the arc-shaped connecting shell 2202. The reinforcement strips 2205 can ensure the connection between the prismatic filter 2207, the elliptical filter 2208, the cone filter 2209 and the arc-shaped connecting shell 2202, thereby preventing the unstable connection caused by excessive negative pressure.

[0045] The specific implementation of this embodiment is as follows: first connect the ultrasonic transducer 2201 to an external power supply. When the synovial tissue fragments after peeling directly enter the connecting tube 12 through the negative pressure inside the peeling tube 2110, the synovial tissue fragments after peeling need to pass through the prismatic filter 2207, the elliptical filter 2208 and the vertebral filter 2209 in sequence. The aperture of the prismatic filter 2207 is a prismatic structure, which can intercept and filter relatively large synovial tissue fragments. The aperture of the elliptical filter 2208 is an elliptical structure. The aperture size of the elliptical filter 2208 is smaller than the aperture size of the prismatic filter 2207, which can intercept and filter smaller synovial tissue fragments. The pore size of the cone filter 2209 is a cone structure, the diameter of the inlet end is larger than the diameter of the outlet end, and the diameter of the inlet end of the cone filter 2209 is smaller than the pore size of the elliptical filter 2208, so that smaller synovial tissue fragments can be filtered to prevent the synovial tissue fragments from being blocked easily due to large size, and the prismatic structure, elliptical structure and cone structure are all conducive to the passage of synovial tissue fragments, reducing the probability of blockage. After a certain period of peeling, a certain amount of synovial tissue fragments will accumulate on the surface of the prismatic filter 2207, the elliptical filter 2208 and the cone filter 2209, and the ultrasonic transducer 2201 is directly used to make the ultrasonic wave directly act on the peeling tube 2110 The surface of the rotary cutting tube 2110 is vibrated, thereby directly vibrating the synovial tissue fragments accumulated on the prismatic filter 2207, the elliptical filter 2208 and the vertebral filter 2209, assisting the synovial tissue fragments to pass through and facilitate their dredging. The ultrasonic transducer 2201 is a device that converts electrical energy into ultrasonic energy. It is usually composed of a vibrator made of piezoelectric ceramics or magnetostrictive materials and a matching circuit. The matching circuit is used to adjust the impedance of the transducer to match it with the driving power supply to improve the energy conversion efficiency. The ultrasonic transducer 2201 is installed on the inner wall of the grip shell 11, and a high-frequency electrical signal is generated by the power supply to make the ultrasonic transducer 220 1 generates ultrasonic vibration and transmits the vibration to the rotary cutting tube 2110 to make it vibrate. When the rotary cutting is completed, the synovial tissue fragments accumulated on the prismatic filter 2207, the elliptical filter 2208 and the vertebral filter 2209 can be manually cleaned for the next use. The first fixing bolt 2116 is directly disassembled, the external shell 2101 is disassembled, and then the second fixing bolt 2210 is disassembled, so that the arc-shaped connecting shell 2202 drives the sealing column 2206 to be separated from the sealing groove 2204, and the arc-shaped connecting shell 2202 is disassembled, and the synovial tissue fragments accumulated on the prismatic filter 2207, the elliptical filter 2208 and the vertebral filter 2209 can be cleaned.

[0046] Example 3: Please refer to Figure 7 , Figure 8 and Fig. 9The present invention provides a technical solution: a self-exhausting synovial biopsy peeling device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A segmentation and cleaning mechanism 3 is arranged inside the synovial peeling unit 21. The segmentation and cleaning mechanism 3 is used in conjunction with the peeling filtering mechanism 2. The segmentation and cleaning mechanism 3 is used to further cut larger synovial tissue fragments.

[0047] As a further limitation of the rotary cutting filter mechanism 2 of the present invention, the segmentation and cleaning mechanism 3 includes three support plates 301, both ends of each support plate 301 are fixedly connected to the inner wall of the arc-shaped connecting shell 2202, the left side of each support plate 301 is fixedly connected to two connecting pieces 303, the outer surface of each connecting piece 303 is rotatably connected to a centrifugal plate 302, the left side of each centrifugal plate 302 is fixedly connected to a plurality of connecting columns 304, the left end of each connecting column 304 is fixedly connected to a brush head 305, and the inner wall of the rotary cutting tube 2110 is fixedly connected to four gradient The blade 307, the inner wall of the rotary cutting tube 2110 is fixedly connected with four fixing rings 306, and the inner wall of each fixing ring 306 is fixedly connected with a plurality of single-sided blades 308. By setting the segmentation and cleaning mechanism 3, it can cooperate with the rotary cutting and filtering mechanism 2 to increase the integrity of the rotary cutting and filtering mechanism 2, effectively further cut the synovial tissue fragments on the basis of the rotary cutting of the synovial rotary cutting unit 21, and can also clean the synovial tissue fragments intercepted by the filtering and intercepting unit 22, thereby increasing the dredging effect of the synovial tissue fragments and preventing the large synovial tissue fragments from being easily accumulated and causing blockage;

[0048] See also Figure 4 and Fig. 9 The outer surfaces of the four fixing rings 306 are fixedly connected with three positioning strips 309. The outer surface of each positioning strip 309 is fixedly connected with the inner wall of the rotary cutting tube 2110. The positioning strips 309 can conveniently ensure the stability of the fixing rings 306 and prevent displacement.

[0049] The specific implementation of this embodiment is as follows: after the synovial tissue fragments are peeled, they directly enter the inside of the peeling tube 2110 through negative pressure. When entering the inside of the peeling tube 2110, the synovial tissue fragments directly contact the gradient blade 307. The gradient blade 307 can cooperate with the rotation of the peeling tube 2110 to cut the synovial tissue fragments, thereby reducing the volume of the synovial tissue fragments. After passing through the gradient blade 307, the synovial tissue fragments contact the single-sided blade 308. The single-sided blade 308 is arranged in a ring shape and directly cooperates with the rotation of the peeling tube 2110 to further cut the synovial tissue fragments, thereby further reducing the volume of the synovial tissue fragments and allowing them to better pass through the prismatic filter 2207, the elliptical filter 2208 and the vertebral filter 2209, thereby reducing the accumulation on the outside thereof and increasing the continuous peeling efficiency. A brush head 305 is provided on both sides, and the rotation of the rotary cutting tube 2110 can drive the centrifugal plate 302 to rotate on the connecting piece 303. Since the connecting piece 303 is not at the center of the centrifugal plate 302, when the rotary cutting tube 2110 drives the centrifugal plate 302 to rotate, the centrifugal plate 302 rotates in an elliptical manner, which effectively increases the swing amplitude of the centrifugal plate 302. The centrifugal plate 302 can drive the brush head 305 to clean the synovial tissue fragments pushed on the surfaces of the prismatic filter 2207, the elliptical filter 2208 and the vertebral filter 2209, and cooperate with the ultrasonic transducer 2201 to reduce the probability of blockage. To a certain extent, the volume of the synovial tissue fragments is further reduced through vibration and cleaning of the brush head 305, so that the fragments can pass through the prismatic filter 2207, the elliptical filter 2208 and the vertebral filter 2209 better, thereby effectively increasing the rotary cutting efficiency and the filtering effect.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-exhausting synovial biopsy and rotary cutting device, comprising a main body (1), characterized in that: The main body mechanism (1) comprises a grip shell (11), the inner wall of the grip shell (11) is fixedly connected to a connecting pipe (12), the left end of the connecting pipe (12) is fixedly connected to a negative pressure pipe (13), and a rotary cutting filter mechanism (2) is arranged inside the grip shell (11); The peeling and filtering mechanism (2) comprises a synovial peeling unit (21), wherein the synovial peeling unit (21) is located inside the grip shell (11), and the synovial peeling unit (21) is used to increase the accuracy of synovial peeling; The rotary cutting and filtering mechanism (2) further comprises a filtering and intercepting unit (22), wherein the filtering and intercepting unit (22) is located inside the synovial rotary cutting unit (21), and the filtering and intercepting unit (22) is used in conjunction with the synovial rotary cutting unit (21), and the filtering and intercepting unit (22) is used to intercept and filter larger synovial tissue fragments inside the negative pressure channel; The synovial peeling unit (21) is provided with a segmentation and cleaning mechanism (3) inside. The segmentation and cleaning mechanism (3) is used in conjunction with the peeling and filtering mechanism (2). The segmentation and cleaning mechanism (3) is used to further cut larger synovial tissue fragments.

2. A self-venting synovial biopsy and excision device according to claim 1, characterized in that: A hanging ring (14) is fixedly connected to the left side of the grip shell (11), a plurality of rubber strips (15) are fixedly connected to the outer surface of the grip shell (11), and a resistance plate (16) is fixedly connected to the upper surface of the grip shell (11).

3. A self-venting synovial biopsy and excision device according to claim 2, characterized in that: The synovial peeling unit (21) comprises an inner shell (2108), the outer surface of the inner shell (2108) is fixedly connected to the inner wall of the grip shell (11), the outer surface of the inner shell (2108) is fixedly connected to a first stabilizing plate (2111), the outer surface of the first stabilizing plate (2111) is fixedly connected to the inner wall of the grip shell (11), the inner wall of the inner shell (2108) is fixedly connected to a first ball bearing (2120), the inner ring of the first ball bearing (2120) is fixedly connected to a peeling tube (2110), and the inner shell (2108) is fixedly connected to a first stabilizing plate (2111). An external shell (2101) is provided on the right side of the handle (108), and a second ball bearing (2115) is fixedly connected to the inner wall of the external shell (2101), and the inner ring of the second ball bearing (2115) is in contact with the outer surface of the rotary cut tube (2110), and the left side of the external shell (2101) is in contact with the right side of the internal shell (2108), and the inner wall of the external shell (2101) and the inner wall of the internal shell (2108) are commonly threadedly connected with three first fixing bolts (2116), and the inner wall of the handle (11) is respectively fixedly connected with DC The brushless motor (2107) and the third ball bearing (2105) are fixedly connected to a rotating shaft (2113) at the output end of the brushless DC motor (2107) and the inner ring of the third ball bearing (2105); the outer surface of the rotating shaft (2113) is fixedly connected to a first gear (2106); the outer surface of the peeling tube (2110) is fixedly connected to a second gear (2112); the outer surface of the second gear (2112) is meshed with the outer surface of the first gear (2106); the inner wall of the peeling tube (2110) is fixedly connected to the outer surface of the first gear (2106); A fifth ball bearing (2121) is connected, the inner ring of the fifth ball bearing (2121) is fixedly connected to a connecting tube (2103), the inner wall of the connecting tube (2103) is fixedly connected to a sealing ring (2122), the inner wall of the sealing ring (2122) is fixedly connected to the outer surface of the connecting tube (12), the inner wall of the rotary cut tube (2110) is fixedly connected to two arc-shaped slices (2117), and the inner wall of each arc-shaped slice (2117) is fixedly connected to a plurality of transverse slices (2118) and a plurality of circular slices (2119).

4. A self-venting synovial biopsy and excision device according to claim 3, characterized in that: A second stabilizing plate (2102) is fixedly connected to the inner wall of the grip shell (11), and the inner wall of the second stabilizing plate (2102) is fixedly connected to the outer surface of the connecting pipe (2103).

5. The self-venting synovial biopsy and excision device according to claim 3, characterized in that: The inner wall of the grip shell (11) is fixedly connected to a third stabilizing plate (2114), the inner wall of the third stabilizing plate (2114) is fixedly connected to a fourth ball bearing (2104), and the inner ring of the fourth ball bearing (2104) is fixedly connected to the outer surface of the rotary cut tube (2110).

6. The self-exhausting synovial biopsy and excision device according to claim 3, characterized in that: A reinforcement ring (2109) is fixedly connected to the outer surface of the inner shell (2108), and the left side surface of the reinforcement ring (2109) is fixedly connected to the right side surface of the grip shell (11).

7. The self-venting synovial biopsy and rotary excision device according to claim 3, characterized in that: The filtering and intercepting unit (22) comprises an arc-shaped connecting shell (2202), the outer surface of the arc-shaped connecting shell (2202) and the outer surface of the rotary cutting tube (2110) are fixedly connected with six fixing plates (2203), the inner walls of every two fixing plates (2203) are commonly fixedly connected with a second fixing bolt (2210), the front of the rotary cutting tube (2110) is provided with eight sealing grooves (2204), the interior of each sealing groove (2204) is clamped with a sealing column (2206), one end of each sealing column (2206) is fixedly connected to the back side of the arc-shaped connecting shell (2202), the inner wall of the arc-shaped connecting shell (2202) is respectively fixedly connected with a prismatic filter net (2207), an elliptical filter net (2208) and a cone filter net (2209), and the inner wall of the grip shell (11) is fixedly connected with an ultrasonic transducer (2201).

8. The self-exhausting synovial biopsy and rotary cutting device according to claim 7, characterized in that: The outer surface of the prismatic filter (2207), the outer surface of the elliptical filter (2208) and the outer surface of the cone filter (2209) are fixedly connected to two reinforcement strips (2205), and the outer surface of each reinforcement strip (2205) is fixedly connected to the inner wall of the arc-shaped connecting shell (2202).

9. The self-exhausting synovial biopsy and rotary cutting device according to claim 7, characterized in that: The splitting and cleaning mechanism (3) comprises three support plates (301), both ends of each support plate (301) are fixedly connected to the inner wall of the arc-shaped connecting shell (2202), the left side of each support plate (301) is fixedly connected to two connecting pieces (303), the outer surface of each connecting piece (303) is rotatably connected to a centrifugal plate (302), the left side of each centrifugal plate (302) is fixedly connected to a plurality of connecting posts (304), the left end of each connecting post (304) is fixedly connected to a brush head (305), the inner wall of the rotary cutting tube (2110) is fixedly connected to four gradient blades (307), the inner wall of the rotary cutting tube (2110) is fixedly connected to four fixing rings (306), and the inner wall of each fixing ring (306) is fixedly connected to a plurality of single-sided blades (308).

10. The self-exhausting synovial biopsy and excision device according to claim 9, characterized in that: The outer surfaces of the four fixing rings (306) are fixedly connected to three positioning strips (309), and the outer surface of each positioning strip (309) is fixedly connected to the inner wall of the rotary cutting tube (2110).

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