Cervical cancer tissue biopsy device

Abstract

The invention provides a cervical cancer tissue biopsy device, and relates to the technical field of medical instruments, the cervical cancer tissue biopsy device comprises a rod body, one end of the rod body is provided with a sample collection end, the sample collection end is composed of two movable parts, and the surfaces of the sides, close to each other, of the two movable parts are provided with sampling cavities; sliding seats are fixedly installed at the ends, close to the rod body, of the two movable parts, the two sliding seats are slidably connected with guide rails, the guide rails are arranged in the rod body, a bending part is arranged at the other end of the rod body, and the driving assembly can drive the sliding seats to move with the guide rails as paths, so that the two movable parts are driven to be opened and closed in a translation mode. In this way, the moving range of sharp points of the moving parts can be further reduced, damage caused in the sampling process is reduced, the sampling cavities are formed in the surfaces of the sides, close to each other, of the moving parts, in the sampling process, samples can move into the sampling cavities along with closing of the moving parts, the sampled objects are prevented from being extruded, and the integrity of the sampled objects is further improved. And falling and fragmentation of the sampled object are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically relates to a cervical cancer tissue biopsy device. Background Art

[0002] Cervical biopsy is the biopsy of the uterine cervix, that is, taking a small piece or several pieces of tissue from the cervix for pathological examination to determine the diagnosis. It is mostly used when there is suspicion of cervical cancer, or when there are suspicious cancer cells in the cervical smear, or when there is suspicion of specific inflammation, such as cervical tuberculosis. Cervical biopsy can clarify the diagnosis and determine the treatment method. Cervical biopsy is the most reliable basis for diagnosing cervical cancer. Whether it is early or late cervical cancer, it is necessary to conduct a cervical examination to determine the pathological type and degree of cell differentiation of the cancer.

[0003] After retrieval, in the prior art, a cervical biopsy forceps with the authorized publication number of CN106137269A includes a housing and a sampling head. The sampling head is installed at the front end of the housing, and a disinfection device is also installed at the front end of the housing. By installing a disinfection device at the front end of the housing, the uterus can be disinfected during or after sampling, avoiding the secondary injury caused by taking out the cervical biopsy forceps after sampling and then inserting the disinfection device into the cervix for disinfection in the prior art.

[0004] In the above technical solution, it is necessary to use a biopsy forceps to sample the specimen of the patient's cervical part, and most biopsy forceps drive two forceps heads to rotate and open in a hinged manner. On the one hand, when sampling the specimen in this way, there is a lack of sampling space between the two forceps heads, so the sampled specimen is not easy to be completely preserved and is easy to fall off. On the other hand, when the forceps heads rotate and open, their moving paths are arc-shaped, and the sharp parts of the forceps heads are easy to cause harm to the patient. For this reason, we have proposed a cervical cancer tissue biopsy device. Summary of the Invention

[0005] Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a cervical cancer tissue biopsy device, which solves the technical problems that it is necessary to use a biopsy forceps to sample the specimen of the patient's cervical part, and most biopsy forceps drive two forceps heads to rotate and open in a hinged manner. On the one hand, when sampling the specimen in this way, there is a lack of sampling space between the two forceps heads, so the sampled specimen is not easy to be completely preserved and is easy to fall off. On the other hand, when the forceps heads rotate and open, their moving paths are arc-shaped, and the sharp parts of the forceps heads are easy to cause harm to the patient.

[0007] Technical Solutions

[0008] To achieve the above object, the present invention is realized by the following technical solutions: A cervical tissue biopsy device includes a rod body, one end of the rod body is provided with a sample collection end, the sample collection end is composed of two movable parts, sampling cavities are arranged on the surfaces of the two movable parts close to each other, sliding seats are fixedly installed at the ends of the two movable parts close to the rod body, the two sliding seats are both slidably connected with guide rails, the guide rails are arranged inside the rod body, the other end of the rod body is provided with a bending part, the end of the bending part is connected with an adjusting part, the end of the adjusting part is connected with a handle, and a driving component for driving the two sliding seats to move synchronously is installed on the handle.

[0009] Preferably, the two movable parts are in a conical shape in the closed state, and a blade is arranged along the edge of each movable part.

[0010] Preferably, a mounting frame is fixedly installed inside each movable part, a tension spring is arranged between the two mounting frames, and the two ends of the tension spring are respectively fixedly connected with the two mounting frames.

[0011] Preferably, the driving component includes a longitudinally arranged piston cylinder fixedly installed inside the rod body, a first piston is slidably installed inside the longitudinally arranged piston cylinder, a moving seat is fixedly installed at one end of the first piston, two connecting rods are arranged at the front end of the moving seat, the two ends of the connecting rods are respectively rotatably connected with a first rotating seat and a second rotating seat through rotating shafts, the two first rotating seats are fixedly installed on the outer wall of the moving seat, and the two second rotating seats are respectively fixedly installed on the two sliding seats.

[0012] Preferably, the driving component further includes a horizontally arranged piston cylinder fixedly installed on the handle, a second piston is arranged inside the horizontally arranged piston cylinder, an upper pressing rod and a lower pressing rod are respectively fixedly installed at the two ends of the second piston, and the horizontally arranged piston cylinder is communicated with the longitudinally arranged piston cylinder through a hose.

[0013] Preferably, hydraulic fluid is arranged inside the horizontally arranged piston cylinder, the longitudinally arranged piston cylinder and the hose.

[0014] Preferably, the bending part includes two connecting rings, a plurality of bendable metal rods are fixedly connected between the two connecting rings, one of the connecting rings is threadedly connected to the outer wall of the rod body, and the other connecting ring is threadedly connected to the outer wall of the adjusting part.

[0015] Preferably, the bending part further includes a silica gel sleeve fixedly sleeved outside the connecting ring, and the silica gel sleeve covers the two connecting rings and the metal rods.

[0016] Preferably, the adjusting part includes a connecting pipe and a fixed pipe. One end of the connecting pipe is threadedly connected to the connecting ring, one end of the fixed pipe is fixedly connected to the handle, the other end of the connecting pipe is fixedly connected to an inner pipe, one end of the inner pipe extends into the interior of the fixed pipe, a cylindrical groove is formed on the inner wall of the fixed pipe, and a circular ring boss is fixedly connected to the outer wall of one end of the inner pipe. The circular ring boss is slidably installed inside the cylindrical groove.

[0017] Preferably, external threads are provided at both ends of the inner wall of the cylindrical groove, and a threaded groove is provided on the outer wall of the circular ring boss.

[0018] Beneficial effects

[0019] The present invention provides a cervical cancer tissue biopsy device, which has the following beneficial effects:

[0020] During use, the driving component can drive the sliding seat to move along the guide rail, thereby driving the two movable parts to open and close translationally. This can further reduce the moving range of the sharp points of the movable parts and reduce the damage caused by sampling. Moreover, a sampling cavity is provided on the surface of the side where the movable parts are close to each other. In this way, during sampling, the sample will move into the sampling cavity as the movable parts close, avoiding extrusion of the sampled material, further improving the integrity of the sampled material, and preventing the sampled material from falling and breaking.

[0021] Blades are arranged along the edges of the movable parts. In this way, when the two movable parts are in the open state, the blades are sharpened inward, which can further improve the safety of the device. At the same time, the blades are arranged along the corners of the movable parts, so that the cutting range of the blades is wide and can be applied to the cutting of samples in different directions.

[0022] The bent metal rod can make the whole bending part in a bent state, so that the orientation of the collection end can be flexibly adjusted according to the use environment, further expanding the applicable range of the device. The silica gel sleeve covers the surfaces of the connecting ring and the metal rod, which can improve the comfort of the patient's contact and reduce discomfort. Brief description of the drawings

[0023] Figure 1 is the overall structural schematic diagram of the present invention;

[0024] Figure 2 is the internal structural schematic diagram of the rod body of the present invention;

[0025] Figure 3 is Figure 2 the enlarged structural schematic diagram at a in

[0026] Figure 4 is Figure 2 the enlarged structural schematic diagram at b in

[0027] Figure 5 is Figure 2Schematic diagram of the enlarged structure at position c in [Chinese name];

[0028] Figure 6 Schematic diagram of the metal rod structure of the present invention;

[0029] Figure 7 Schematic diagram of the handle structure of the present invention;

[0030] Figure 8 is Figure 7 Schematic diagram of the enlarged structure at position d in [Chinese name].

[0031] Wherein, 1. Rod body; 2. Collection end; 21. Movable part; 22. Blade; 23. Sampling cavity; 24. Slide; 25. Guide rail; 26. Mounting bracket; 27. Tension spring; 3. Bending part; 31. Connecting ring; 32. Metal rod; 33. Silicone sleeve; 4. Adjusting part; 41. Connecting pipe; 42. Fixed pipe; 43. Inner pipe; 44. Circular ring boss; 45. Cylindrical groove; 5. Handle; 6. Driving assembly; 61. Vertically arranged piston cylinder; 62. First piston; 63. Moving seat; 64. Connecting rod; 65. First rotating seat; 66. Second rotating seat; 67. Hose; 68. Horizontally arranged piston cylinder; 69. Second piston; 70. Upper pressing rod; 71. Lower pressing rod. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1:

[0034] As Figures 1 - 8As shown in the figure, an embodiment of the present invention provides a cervical cancer tissue biopsy device, including a rod body 1. One end of the rod body 1 is provided with a sample collection end 2. The sample collection end 2 is composed of two movable parts 21. Sampling cavities 23 are arranged on the surfaces of the two movable parts 21 close to each other. Fixed seats 24 are fixedly installed at one ends of the two movable parts 21 close to the rod body 1. Guide rails 25 are slidably connected to the two fixed seats 24. The guide rails 25 are arranged inside the rod body 1. The other end of the rod body 1 is provided with a bending part 3. The end of the bending part 3 is connected with an adjusting part 4. The end of the adjusting part 4 is connected with a handle 5. A driving assembly 6 for driving the two fixed seats 24 to move synchronously is installed on the handle 5. During use, the driving assembly 6 can drive the fixed seats 24 to move along the guide rails 25, so as to drive the two movable parts 21 to open and close in translation. This can further reduce the moving range of the sharp points of the movable parts 21 and reduce the harm caused during sampling. Moreover, sampling cavities 23 are arranged on the surfaces of the two movable parts 21 close to each other. In this way, during sampling, the sample will move into the sampling cavities 23 as the movable parts 21 close, avoiding extrusion of the sampled material, further improving the integrity of the sampled material, and preventing the sampled material from falling and breaking.

[0035] As Figure 1 , Figure 2 and Figure 3 As shown in the figure, in this embodiment, the two movable parts 21 are conical in the closed state. Such a setting can facilitate the movement of the device to the cervical part of the patient. The outer walls of the two movable parts 21 are arc-shaped in the closed state, improving the comfort during use and avoiding harm to the patient's body. A blade 22 is arranged along the edge of each movable part 21. In this way, when the two movable parts 21 are in the open state, the blades 22 are sharpened inward, which can further improve the safety of the device. At the same time, the blades 22 are arranged along the corners of the movable parts 21, so that the cutting range of the blades 22 is wide and can be applied to the cutting of samples in different directions.

[0036] As Figure 3 As shown in the figure, in this embodiment, a mounting frame 26 is fixedly installed inside each movable part 21. A tension spring 27 is arranged between the two mounting frames 26. The two ends of the tension spring 27 are fixedly connected to the two mounting frames 26 respectively. The tension spring 27 can apply a pulling force during sampling, so as to increase the shearing and clamping forces generated by the closing of the two movable parts 21 and improve the sampling speed.

[0037] As Figure 3 , Figure 7 and Figure 8As shown, in this embodiment, the driving assembly 6 includes a longitudinally arranged piston cylinder 61 fixedly installed inside the rod body 1. A first piston 62 is slidably installed inside the longitudinally arranged piston cylinder 61. One end of the first piston 62 is fixedly installed with a moving seat 63. Two connecting rods 64 are arranged at the front end of the moving seat 63. The two ends of the connecting rod 64 are respectively rotationally connected to a first rotating seat 65 and a second rotating seat 66 through rotating shafts. The two first rotating seats 65 are both fixedly installed on the outer wall of the moving seat 63. The two second rotating seats 66 are respectively fixedly installed on the two sliding seats 24. When the first piston 62 moves, it can drive the moving seat 63 to drive the connecting rod 64 to move, so that the two ends of the connecting rod 64 rotate and adjust the angle with the rotating shafts of the first rotating seat 65 and the second rotating seat 66 as the centers, and then the end of the connecting rod 64 drives the sliding seat 24 to slide, so that the sliding seat 24 drives the movable member 21 to close or open.

[0038] As Figure 3 and Figure 8 shown, in this embodiment, the driving assembly 6 further includes a horizontally arranged piston cylinder 68 fixedly installed on the handle 5. A second piston 69 is arranged inside the horizontally arranged piston cylinder 68. An upper pressing rod 70 and a lower pressing rod 71 are respectively fixedly installed at the two ends of the second piston 69. The horizontally arranged piston cylinder 68 is communicated with the longitudinally arranged piston cylinder 61 through a hose 67. Oil is arranged inside the horizontally arranged piston cylinder 68, the longitudinally arranged piston cylinder 61 and the hose 67. During use, by pressing the upper pressing rod 70, the second piston 69 can be driven to move towards the bottom direction of the horizontally arranged piston cylinder 68, squeezing the oil inside the horizontally arranged piston cylinder 68, driving the oil to flow into the hose 67 and the longitudinally arranged piston cylinder 61, increasing the oil volume inside the longitudinally arranged piston cylinder 61, so that the oil drives the first piston 62 and the moving seat 63 to drive the connecting rod 64 to move, so that the connecting rod 64 supports the two sliding seats 24 to drive the movable member 21 to open; by pressing the lower pressing rod 71, the second piston 69 can be driven to move towards the top direction of the horizontally arranged piston cylinder 68, so that a suction force is generated inside the horizontally arranged piston cylinder 68, driving the oil inside the hose 67 and the longitudinally arranged piston cylinder 61 to flow into the horizontally arranged piston cylinder 68, so that the oil drives the first piston 62 and the moving seat 63 to drive the connecting rod 64 to move, so that the connecting rod 64 pulls the two sliding seats 24 to approach each other and cooperate with the tension spring 27 to drive the movable member 21 to close to complete the clamping and sampling work.

[0039] As Figure 4 and Figure 6As shown in the figure, in this embodiment, the bending part 3 includes two connecting rings 31. A plurality of bendable metal rods 32 are fixedly connected between the two connecting rings 31. One of the connecting rings 31 is threadedly connected to the outer wall of the rod body 1, and the other connecting ring 31 is threadedly connected to the outer wall of the adjusting part 4. The bending part 3 further includes a silica gel sleeve 33 fixedly sleeved outside the connecting ring 31. The silica gel sleeve 33 covers the two connecting rings 31 and the metal rods 32. Before use, by bending the metal rods 32, the whole bending part 3 can be in a bent state, so that the orientation of the collection end 2 can be flexibly adjusted according to the use environment, further improving the applicable range of the device. The silica gel sleeve 33 covers the surfaces of the connecting ring 31 and the metal rods 32, which can improve the comfort of the patient's contact and reduce discomfort.

[0040] As Figure 5 shown in the figure, in this embodiment, the adjusting part 4 includes a connecting pipe 41 and a fixed pipe 42. One end of the connecting pipe 41 is threadedly connected to the connecting ring 31, and one end of the fixed pipe 42 is fixedly connected to the handle 5. The other end of the connecting pipe 41 is fixedly connected with an inner pipe 43. One end of the inner pipe 43 extends into the interior of the fixed pipe 42. A cylindrical groove 45 is formed on the inner wall of the fixed pipe 42. An annular boss 44 is fixedly connected to the outer wall of one end of the inner pipe 43. The annular boss 44 is slidably installed inside the cylindrical groove 45. External threads are provided at both ends of the inner wall of the cylindrical groove 45, and a thread groove is provided on the outer wall of the annular boss 44. During use, by pulling the connecting pipe 41 and the fixed pipe 42, the annular boss 44 slides or rotates along the path inside the cylindrical groove 45, which enables the connecting pipe 41 and the fixed pipe 42 to telescopically adjust the length and angle, and can be adjusted according to the use depth and direction, improving the sampling range. When the annular boss 44 moves to the upper or lower end of the cylindrical groove 45, rotate the annular boss 44 so that its thread groove is connected to the external thread to lock the length of the connecting pipe 41 and the fixed pipe 42.

[0041] Working principle:

[0042] During use, the driving component 6 can drive the sliding seat 24 to move along the guide rail 25, thereby driving the two movable parts 21 to open and close in translation, which can further reduce the moving range of the sharp points of the movable parts 21 and reduce the damage caused during sampling. And a sampling cavity 23 is provided on the surface of the side where the movable parts 21 are close to each other. In this way, during sampling, the sample will move into the sampling cavity 23 as the movable parts 21 close, avoiding extrusion of the sampled material, further improving the integrity of the sampled material and preventing the sampled material from falling and breaking.

[0043] In use, by pressing the upper pressing rod 70, the second piston 69 can be driven to move towards the bottom of the horizontal piston cylinder 68, squeezing the hydraulic fluid inside the horizontal piston cylinder 68, driving the hydraulic fluid to flow into the hose 67 and the vertical piston cylinder 61, increasing the amount of hydraulic fluid inside the vertical piston cylinder 61, so that the hydraulic fluid drives the first piston 62 and the moving seat 63 to drive the connecting rod 64 to move, enabling the connecting rod 64 to support the two sliding seats 24 to drive the movable member 21 to open;

[0044] Pressing the lower pressing rod 71 can drive the second piston 69 to move towards the top of the horizontal piston cylinder 68, generating suction inside the horizontal piston cylinder 68, driving the hydraulic fluid inside the hose 67 and the vertical piston cylinder 61 to flow into the horizontal piston cylinder 68, so that the hydraulic fluid drives the first piston 62 and the moving seat 63 to drive the connecting rod 64 to move, enabling the connecting rod 64 to pull the two sliding seats 24 to approach each other and cooperate with the tension spring 27 to drive the movable member 21 to close to complete the clamping and sampling work.

[0045] When the first piston 62 moves, it can drive the moving seat 63 to drive the connecting rod 64 to move, enabling the two ends of the connecting rod 64 to rotate and adjust the angle around the rotation axes of the first rotating seat 65 and the second rotating seat 66 respectively. Furthermore, the end of the connecting rod 64 drives the sliding seat 24 to slide, enabling the sliding seat 24 to drive the movable member 21 to close or open.

[0046] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, based on the above description, other different forms of changes or variations can be made. It is impossible to enumerate all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A cervical cancer tissue biopsy device, comprising a rod body (1), characterized in that: A sample collecting end (2) is provided at one end of the rod body (1), and the sample collecting end (2) is composed of two movable parts (21). The surfaces of the two movable parts (21) on one side close to each other are provided with a sampling cavity (23). A slide seat (24) is fixedly mounted on the end of the two movable parts (21) close to the rod body (1). The two slide seats (24) are slidably connected to a guide rail (25), and the guide rail (25) is arranged inside the rod body (1). A bending portion (3) is provided at the other end of the rod body (1), and an adjusting portion (4) is connected to the end of the bending portion (3). A handle (5) is connected to the end of the adjusting portion (4), and a driving component (6) for driving the two slide seats (24) to move synchronously is installed on the handle (5).

2. A cervical cancer tissue biopsy device according to claim 1, characterized in that: The two movable parts (21) are in a closed state and have a cone shape, and each movable part (21) is provided with a blade (22) along its edge.

3. A cervical cancer tissue biopsy device according to claim 2, characterized in that: A mounting frame (26) is fixedly mounted inside each movable member (21), a tension spring (27) is arranged between the two mounting frames (26), and two ends of the tension spring (27) are respectively fixedly connected to the two mounting frames (26).

4. A cervical cancer tissue biopsy device according to claim 3, characterized in that: The driving assembly (6) comprises a longitudinal piston cylinder (61) fixedly mounted inside the rod body (1), a first piston (62) being slidably mounted inside the longitudinal piston cylinder (61), a moving seat (63) being fixedly mounted on one end of the first piston (62), two connecting rods (64) being arranged at the front end of the moving seat (63), two ends of the connecting rods (64) being rotatably connected to a first rotating seat (65) and a second rotating seat (66) via a rotating shaft, the two first rotating seats (65) being fixedly mounted on the outer wall of the moving seat (63), and the two second rotating seats (66) being fixedly mounted on two sliding seats (24) respectively.

5. A cervical cancer tissue biopsy device according to claim 4, characterized in that: The drive assembly (6) further comprises a transverse piston cylinder (68) fixedly mounted on the handle (5), a second piston (69) being arranged inside the transverse piston cylinder (68), an upper pressure rod (70) and a lower pressure rod (71) being fixedly mounted at both ends of the second piston (69), and the transverse piston cylinder (68) and the longitudinal piston cylinder (61) are connected via a hose (67).

6. A cervical cancer tissue biopsy device according to claim 5, characterized in that: Oil is provided inside the transverse piston cylinder (68), the longitudinal piston cylinder (61) and the hose (67).

7. The cervical cancer tissue biopsy device according to claim 1, characterized in that: The bending portion (3) comprises two connecting rings (31), and a plurality of bendable metal rods (32) are fixedly connected between the two connecting rings (31), wherein one of the connecting rings (31) is threadedly connected to the outer wall of the rod body (1), and the other connecting ring (31) is threadedly connected to the outer wall of the adjusting portion (4).

8. The cervical cancer tissue biopsy device according to claim 7, characterized in that: The bending portion (3) further comprises a silicone sleeve (33) fixedly sleeved on the outside of the connecting ring (31), wherein the silicone sleeve (33) covers the two connecting rings (31) and the metal rod (32).

9. The cervical cancer tissue biopsy device according to claim 8, characterized in that: The adjusting portion (4) comprises a connecting tube (41) and a fixing tube (42); one end of the connecting tube (41) is threadedly connected to the connecting ring (31); one end of the fixing tube (42) is fixedly connected to the handle (5); the other end of the connecting tube (41) is fixedly connected to an inner tube (43); one end of the inner tube (43) extends into the interior of the fixing tube (42); a cylindrical groove (45) is provided on the inner wall of the fixing tube (42); one end of the outer wall of the inner tube (43) is fixedly connected to a circular boss (44); the circular boss (44) is slidably mounted inside the cylindrical groove (45).

10. The cervical cancer tissue biopsy device according to claim 9, characterized in that: Both ends of the inner wall of the cylindrical groove (45) are provided with external threads, and the outer wall of the annular boss (44) is provided with a thread groove.

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