Interventional operation guide wire capturing device based on biopsy forceps and using method

Abstract

The invention discloses an interventional operation guide wire capturing device based on biopsy forceps and a using method, and belongs to the technical field of biopsy forceps. The interventional operation guide wire capturing device based on the biopsy forceps comprises a shell, a guide column is arranged at the bottom of the shell, and the interventional operation guide wire capturing device further comprises an interventional guide wire slidably connected into the shell; a mutually linked clamping part is arranged between the interventional guide wire and the guide column, and the clamping part comprises tong heads rotationally connected to the two sides of the guide column; a doctor enters a human body through a channel of an endoscope and reaches a designated position, the doctor pulls a sliding ring upwards by holding a holding ring, a circular ring and a vertical plate are driven to slide upwards, an intervention guide wire is driven to pull a pull ring in a guide column, and under the action of two connecting rods, the two forceps heads are close to each other to achieve rapid closing; the pair of forceps is simple in structure, convenient to use, capable of rapidly clamping a polyp or tissue sample needing to be clamped, good in controllability, stable, large in clamping force, better in goodness of fit, easier to sample, safe and effective through sharp tooth openings of the forceps heads, and capable of avoiding tearing of tissue.

Description

Technical Field

[0001] The present invention relates to the technical field of biopsy forceps, and in particular to an interventional surgery guide wire capture device and method based on biopsy forceps. Background Art

[0002] Endoscopic biopsy forceps is a medical device used to capture human tissue samples during interventional surgery. It is inserted into the human body through the working channel of the endoscope, and the doctor captures the diseased tissue or suspected diseased tissue through the guide wire under the operation of the doctor for interventional pathological examination. This is extremely important for the diagnosis of diseases. It is a device for capturing, removing and collecting digestive tract polyps.

[0003] However, when the existing interventional surgical guide wire capture device based on biopsy forceps is in use, the forceps head is easy to tear the tissue when it is used for tissue samples or polyps, the forceps head is not sharp, the maneuverability is poor, and it is easy to damage the endoscope channel. In view of this, the present application specially proposes an interventional surgical guide wire capture device based on biopsy forceps to solve this problem. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the biopsy forceps in the prior art have poor maneuverability when in use and the forceps head is prone to tearing when clamping tissue or polyps, and to propose an interventional surgical guide wire capture device based on biopsy forceps and a method of use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An interventional surgical guide wire capture device based on biopsy forceps comprises a shell, a guide column is arranged at the bottom of the shell, and also comprises an interventional guide wire slidably connected to the shell, a clamping part which is linked to each other is arranged between the interventional guide wire and the guide column, the clamping part comprises a forceps head rotatably connected to both sides of the guide column, two forceps heads are rotatably connected to connecting rods respectively, one end of the two connecting rods is rotatably connected to pull rings, the bottom of the guide column is fixedly connected to a round rod, and the round rod is fixedly connected to an interventional blade; when the interventional guide wire is driven to be pulled up, the two connecting rods drive the two forceps heads to rotate and close.

[0006] Preferably, a gripping portion is slidably provided on the outside of the shell, and the gripping portion comprises a sliding ring slidably connected to the outside of the shell, and an anti-slip rubber sleeve is fixedly provided on the outer wall of the sliding ring.

[0007] Preferably, grip rings are fixedly connected to the outer walls on both sides of the sliding ring, arc plates are fixedly connected to the inner walls on both sides of the sliding ring, and a circular ring is slidably connected to the outside of the shell near the arc plates.

[0008] Preferably, clamping blocks are fixedly connected to both sides of the inner wall of the sliding ring, and clamping grooves corresponding to the clamping blocks are formed on the outer wall of the circular ring.

[0009] Preferably, a fixing ring is fixedly connected to the top of the shell, a vertical slot is opened on the surface of the shell, a vertical plate is fixedly connected inside the circular ring, the bottom of the vertical plate is fixedly connected to the interventional guide wire, and the end of the interventional guide wire away from the vertical plate is fixedly connected to the pull ring.

[0010] Preferably, the interventional guidewire is externally sheathed with a plastic-coated spring tube, a receiving groove is provided inside the shell, a small sleeve is fixedly connected to the inner wall of the receiving groove, and both ends of the plastic-coated spring tube are respectively fixedly connected to the guide column and the small sleeve.

[0011] Preferably, a long slot is provided on the guide column, a latch is rotatably connected to the guide column, one end of the two pliers heads are fixedly connected to the latch, and the top of the intervention blade passes through the latch and is fixedly connected to the latch.

[0012] Preferably, one end of the pull ring extends to the outside of the guide column and is slidably connected to the guide column. A support rod is fixedly connected to the inner wall of the long slot of the guide column, and the two connecting rods are rotatably connected to the support rod.

[0013] Preferably, both of the two pliers heads are provided with sharp teeth, both of the two pliers heads are provided with leakage holes, a vertical rod is fixedly connected to the top wall of the vertical slot of the shell, a sliding groove corresponding to the vertical rod is provided on the circular ring, a reset spring is sleeved on the vertical rod, and the two ends of the reset spring are respectively against the circular ring and the top wall of the vertical slot.

[0014] The present invention also provides an interventional surgical guide wire capture method based on biopsy forceps, which is operated by the following steps: S1. When using an interventional surgical guide wire capture device based on biopsy forceps, enter the target position through the endoscope forceps channel, align the forceps head and the intervention blade on the clamping part with the target tissue, and then insert the intervention blade into the polyp or tissue. Then the doctor holds the gripping part and pulls the grip ring upward, and the grip ring drives the sliding ring to slide upward; S2. The sliding ring is in the groove of the circular ring through the block on the inner wall, so that the sliding ring pulls the circular ring upward, and the circular ring pulls the intervention guide wire at the bottom of the vertical plate, so that the pull ring slides on the guide column, and the two forceps heads rotate and close to clamp the target tissue or polyp.

[0015] Compared with the prior art, the present invention provides an interventional surgical guide wire capture device based on biopsy forceps, which has the following beneficial effects: The endoscope enters the human body through the channel of the endoscope and reaches the designated position. The doctor pulls the sliding ring by holding the grip ring, driving the circular ring and the vertical plate to slide upward, compressing the spring on the vertical rod. The vertical plate drives the interventional guide wire to pull the pull ring in the guide column. Under the action of the two connecting rods, the two forceps heads are brought close to each other to achieve rapid closure, and the polyps or tissue samples that need to be clamped are quickly clamped. The operation is good, stable and has a large clamping force. The sharp teeth of the forceps head make the fit better, and the sampling is easier, safer and more effective. It can avoid tearing of tissues, has smooth opening and closing performance, and no jamming. The use of a plastic-coated spring tube helps to easily enter and exit the forceps channel and avoid damage to the endoscope forceps channel. The forceps head and interventional blades are made of medical-grade stainless steel with a smoother surface to avoid damage to the mucosa. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an interventional surgical guide wire capture device based on biopsy forceps proposed by the present invention; Figure 2 The present invention proposes Figure 1 The structural diagram of part A in the figure; Figure 3 This is a front view structural schematic diagram of an interventional surgical guide wire capture device based on biopsy forceps proposed by the present invention; Figure 4 The present invention proposes Figure 3 The structural diagram of part B; Figure 5 This is a front cross-sectional structural schematic diagram of an interventional surgical guide wire capture device based on biopsy forceps proposed by the present invention; Figure 6 The present invention proposes Figure 5 Schematic diagram of the structure of part C; Figure 7 This is a schematic structural diagram of a gripping portion in an interventional surgical guide wire capture device based on biopsy forceps proposed by the present invention; Figure 8 This is a schematic structural diagram of a circular ring, a clamping groove, and a vertical plate in an interventional surgical guide wire capture device based on biopsy forceps proposed by the present invention; Fig. 9 This is a schematic diagram of the structure of an interventional blade, a forceps head, and a pull ring in an interventional surgical guide wire capture device based on biopsy forceps proposed by the present invention; Fig.10 This is a structural schematic diagram of the sharp teeth and water leakage holes of the forceps head in an interventional surgery guide wire capture device based on biopsy forceps proposed by the present invention.

[0017] In the figure: 1. Shell; 101. Vertical notch; 102. Accommodating groove; 103. Intervention guide wire; 104. Vertical rod; 105. Return spring; 2. Guide column; 201. Long notch; 202. Round rod; 203. Intervention blade; 204. Latch; 205. Support rod; 3. Clamping part; 301. Clamp head; 3011. Sharp teeth; 3012. Leakage hole; 302. Connecting rod; 303. Pull ring; 4. Grip part; 401. Sliding ring; 402. Grip ring; 403. Arc plate; 404. Block; 5. Circular ring; 501. Slot; 502. Vertical plate; 6. Plastic-coated spring tube; 7. Small sleeve; 8. Fixed ring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] Example 1: Reference Figure 1-Figure 10 , an interventional surgical guide wire capture device based on biopsy forceps, comprising a shell 1, a guide column 2 is arranged at the bottom of the shell 1, and also comprises an interventional guide wire 103 slidably connected in the shell 1, a mutually linked clamping part 3 is arranged between the interventional guide wire 103 and the guide column 2, the clamping part 3 comprises a clamp head 301 rotatably connected to both sides of the guide column 2, the two clamp heads 301 are rotatably connected to connecting rods 302 respectively, one end of the two connecting rods 302 is rotatably connected to a pull ring 303, the bottom of the guide column 2 is fixedly connected to a round rod 202, and the round rod 202 is fixedly connected to an interventional blade 203; when the interventional guide wire 103 is driven to be pulled up, the two connecting rods 302 drive the two clamp heads 301 to rotate and close.

[0021] In the present invention, when clamping the target tissue or polyp, the endoscope enters the human body through the channel of the endoscope to reach the site where the tissue sample is obtained, and the interventional blade 203 is inserted into the tissue to be clamped. By pulling the interventional guide wire 103 upward, the interventional guide wire 103 pulls the pull ring 303, and the pull ring 303 slides upward on the guide column 2. Under the action of the two connecting rods 302, the two clamp heads 301 are rotated and closed, and the target tissue or polyp is quickly clamped, and then the biopsy forceps are slowly withdrawn; the interventional blade 203 can cut harder tissue, which is helpful for accurate tissue cutting; it should be noted that the clamp heads 301 and the interventional blade 203 are both made of medical stainless steel, with a smoother surface, which can avoid damaging the mucosa.

[0022] Example 2: Reference Figure 1-Figure 10 , which is basically the same as the first embodiment, and further, a gripping portion 4 is slidably provided on the outside of the shell 1, and the gripping portion 4 includes a sliding ring 401 slidably connected to the outside of the shell 1, and a non-slip rubber sleeve is fixedly provided on the outer wall of the sliding ring 401.

[0023] In the present invention, the anti-slip rubber sleeve on the sliding ring 401 allows doctors to hold the sliding ring 401 more closely, preventing it from loosening or slipping due to sweating hands, and helps to make an interventional surgical guide wire capture device based on biopsy forceps more stable during use.

[0024] Grip rings 402 are fixedly connected to the outer walls of both sides of the sliding ring 401 , arc plates 403 are fixedly connected to the inner walls of the sliding ring 401 , and a circular ring 5 is slidably connected to the outside of the housing 1 near the arc plates 403 .

[0025] In the present invention, the grip ring 402 facilitates the doctor to pull up and push down the sliding ring 401, and the arc plate 403 on the inner wall of the sliding ring 401 facilitates the sliding of the circular ring 5, which plays a role in guiding the sliding.

[0026] Blocks 404 are fixedly connected to both sides of the inner wall of the sliding ring 401 , and a clamping groove 501 corresponding to the clamping block 404 is formed on the outer wall of the circular ring 5 .

[0027] In the present invention, the block 404 on the inner wall of the sliding ring 401 enters into the slot 501 on the circular ring 5, so that the circular ring 5 can be driven to slide synchronously when the sliding ring 401 slides up and down.

[0028] A fixing ring 8 is fixedly connected to the top of the shell 1, a vertical slot 101 is opened on the surface of the shell 1, a vertical plate 502 is fixedly connected inside the circular ring 5, the bottom of the vertical plate 502 is fixedly connected to the interventional guide wire 103, and the end of the interventional guide wire 103 away from the vertical plate 502 is fixedly connected to the pull ring 303.

[0029] In the present invention, the fixing ring 8 is used to facilitate the doctor's palm support, and it is more convenient to push and pull the grip ring 402 on the sliding ring 401. When the circular ring 5 slides up and down through the vertical slot 101 on the shell 1, the vertical plate 502 in the circular ring 5 can slide in the vertical slot 101 on the shell 1. When the doctor pulls the sliding ring 401 through the grip ring 402 to drive the circular ring 5 to slide up, the circular ring 5 drives the vertical plate 502 to slide in the vertical slot 101 of the shell 1. At the same time, the vertical plate 502 pulls the interventional guide wire 103, and then pulls the pull ring 303, controlling the clamp head 301 of the clamping part 3 to achieve closure, so as to grab the polyp or tissue sample.

[0030] The interventional guide wire 103 is externally sleeved with a plastic-coated spring tube 6, a receiving groove 102 is provided inside the housing 1, a small sleeve 7 is fixedly connected to the inner wall of the receiving groove 102, and both ends of the plastic-coated spring tube 6 are fixedly connected to the guide column 2 and the small sleeve 7 respectively.

[0031] In the present invention, by adopting the plastic-coated spring tube 6, it is convenient and easy to enter and exit the forceps channel, which can avoid damaging the endoscope forceps channel. Even after multiple circles, the forceps head 301 can still be opened and closed freely without sticking, and the controllability is good; the small sleeve 7 is used to facilitate the installation of the plastic-coated spring tube 6.

[0032] A long slot 201 is formed on the guide post 2 , a latch 204 is rotatably connected to the guide post 2 , one end of the two pliers 301 are fixedly connected to the latch 204 , and the top of the intervention blade 203 passes through the latch 204 and is fixedly connected to the latch 204 .

[0033] In the present invention, the long notch 201 on the guide column 2 provides a space for the connecting rod 302 and the clamp head 301 to rotate, and the latch 204 facilitates the installation of the clamp head 301, so that the clamp head 301 can be rotated to open and close more stably.

[0034] One end of the pull ring 303 extends to the outside of the guide column 2 and is slidably connected to the guide column 2 . A support rod 205 is fixedly connected to the inner wall of the long slot 201 of the guide column 2 . Both connecting rods 302 are rotatably connected to the support rod 205 .

[0035] In the present invention, the guide column 2 can guide the pull ring 303 to slide up and down, and the support rod 205 on the inner wall of the long slot 201 on the guide column 2 can facilitate the support and installation of the connecting rod 302, making the connecting rod 302 more stable during rotation.

[0036] Both pliers heads 301 are provided with sharp teeth 3011, and both pliers heads 301 are provided with leakage holes 3012. A vertical rod 104 is fixedly connected to the top wall of the vertical slot 101 of the shell 1, and a sliding groove corresponding to the vertical rod 104 is provided on the circular ring 5. A reset spring 105 is sleeved on the vertical rod 104, and the two ends of the reset spring 105 are respectively against the circular ring 5 and the top wall of the vertical slot 101.

[0037] In the present invention, the sharp teeth 3011 on the forceps head 301 make it easier, faster, and have a good fit when clamping polyps or tissues, and can avoid tearing of tissues. The leakage holes 3012 on the forceps head 301 facilitate the outflow of tissue fluid generated during the clamping process of polyps or tissues, so that the clamping effect of the forceps head 301 is better. Through the vertical rod 104, when the grip ring 402 drives the sliding ring 401 to slide up, the vertical rod 104 can further guide it, and at the same time, the reset spring 105 can be compressed. After the biopsy forceps is taken out of the human body, by loosening the grip ring 402, the reset spring 105 facilitates the rapid reset of the sliding ring 401, thereby quickly opening the two forceps heads 301. At the same time, the reset spring 105 facilitates the doctor to use the grip ring 402, and always maintains an elastic force, so that the biopsy forceps are more maneuverable.

[0038] Embodiment 3: A method for using a biopsy forceps-based interventional surgical guide wire capture device, using the following steps: S1. When using an interventional surgical guide wire capture device based on biopsy forceps, the doctor enters the target position through the endoscope forceps channel, aligns the forceps head 301 and the intervention blade 203 on the clamping part 3 with the target tissue, and then inserts the intervention blade 203 into the polyp or tissue. Then, the doctor holds the gripping part 4 and pulls the gripping ring 402 upward, so that the gripping ring 402 drives the sliding ring 401 to slide upward; S2. The sliding ring 401 is in the slot 501 of the circular ring 5 through the clamping block 404 on the inner wall, so that the sliding ring 401 pulls the circular ring 5 upward, and the circular ring 5 pulls the interventional guide wire 103 at the bottom of the vertical plate 502, so that the pull ring 303 slides on the guide column 2, and the two forceps heads 301 rotate and close to clamp the target tissue or polyp.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An interventional surgical guide wire capture device based on biopsy forceps, comprising a housing (1), characterized in that: The bottom of the housing (1) is provided with a guide column (2), and further comprises: An interventional guide wire (103) is slidably connected to the housing (1); a mutually linked clamping portion (3) is provided between the interventional guide wire (103) and the guide post (2); the clamping portion (3) comprises a clamp head (301) rotatably connected to both sides of the guide post (2); the two clamp heads (301) are rotatably connected to connecting rods (302), one end of the two connecting rods (302) is rotatably connected to a pull ring (303); the bottom of the guide post (2) is fixedly connected to a round rod (202), and the round rod (202) is fixedly connected to an interventional blade (203); When the interventional guide wire (103) is driven to be pulled upward, the two connecting rods (302) drive the two clamp heads (301) to rotate and close.

2. The biopsy forceps-based interventional surgical guide wire capture device according to claim 1, characterized in that: A gripping portion (4) is slidably provided on the outside of the housing (1), the gripping portion (4) comprising a sliding ring (401) slidably connected to the outside of the housing (1), and an anti-slip rubber sleeve is fixedly provided on the outer wall of the sliding ring (401).

3. The biopsy forceps-based interventional surgical guide wire capture device according to claim 2, characterized in that: Grip rings (402) are fixedly connected to the outer walls on both sides of the sliding ring (401), arc-shaped plates (403) are fixedly connected to the inner walls on both sides of the sliding ring (401), and a circular ring (5) is slidably connected to the outside of the shell (1) near the arc-shaped plates (403).

4. The biopsy forceps-based interventional surgical guide wire capture device according to claim 3, characterized in that: Blocks (404) are fixedly connected to both sides of the inner wall of the sliding ring (401), and a clamping groove (501) corresponding to the clamping block (404) is provided on the outer wall of the circular ring (5).

5. The biopsy forceps-based interventional surgical guide wire capture device according to claim 4, characterized in that: A fixing ring (8) is fixedly connected to the top of the shell (1), a vertical notch (101) is provided on the surface of the shell (1), a vertical plate (502) is fixedly connected inside the circular ring (5), the bottom of the vertical plate (502) is fixedly connected to an interventional guide wire (103), and one end of the interventional guide wire (103) away from the vertical plate (502) is fixedly connected to a pull ring (303).

6. The biopsy forceps-based interventional surgical guide wire capture device according to claim 1, characterized in that: The interventional guide wire (103) is externally sleeved with a plastic-coated spring tube (6), the housing (1) is internally provided with a receiving groove (102), a small sleeve (7) is fixedly connected to the inner wall of the receiving groove (102), and the two ends of the plastic-coated spring tube (6) are respectively fixedly connected to the guide column (2) and the small sleeve (7).

7. The biopsy forceps-based interventional surgical guide wire capture device according to claim 1, characterized in that: The guide column (2) is provided with a long slot (201), a latch (204) is fixedly connected to the guide column (2), one end of the two pliers heads (301) are rotatably connected to the latch (204), and the top of the intervention blade (203) passes through the latch (204) and is fixedly connected to the latch (204).

8. The biopsy forceps-based interventional surgical guide wire capture device according to claim 1, characterized in that: One end of the pull ring (303) extends to the outside of the guide column (2) and is slidably connected to the guide column (2); a support rod (205) is fixedly connected to the inner wall of the long slot (201) of the guide column (2); and the two connecting rods (302) are rotatably connected to the support rod (205).

9. The biopsy forceps-based interventional surgical guide wire capture device according to claim 3, characterized in that: The two pliers heads (301) are both provided with sharp teeth (3011), the two pliers heads (301) are both provided with a water leakage hole (3012), a vertical rod (104) is fixedly connected to the top wall of the vertical slot (101) of the housing (1), a sliding groove corresponding to the vertical rod (104) is provided on the circular ring (5), a return spring (105) is sleeved on the vertical rod (104), and two ends of the return spring (105) are respectively against the top wall of the circular ring (5) and the vertical slot (101).

10. A method for capturing a guide wire for interventional surgery based on biopsy forceps, comprising a device for capturing a guide wire for interventional surgery based on biopsy forceps according to any one of claims 1 to 9, characterized in that: Use the following steps: S1. When in use, the doctor enters the target position through the endoscope forceps channel, aligns the forceps head (301) and the interventional blade (203) on the clamping portion (3) with the target tissue, and then inserts the interventional blade (203) into the polyp or tissue. The doctor then holds the gripping portion (4) and pulls the gripping ring (402) upward, so that the gripping ring (402) drives the sliding ring (401) to slide upward; S2. The sliding ring (401) is inserted into the groove (501) of the circular ring (5) through the clamping block (404) on the inner wall, so that the sliding ring (401) pulls the circular ring (5) upward, and the circular ring (5) pulls the intervention guide wire (103) at the bottom of the vertical plate (502), so that the pull ring (303) slides on the guide column (2), and the two clamp heads (301) rotate and close to clamp the target tissue or polyp.

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