Biopsy forceps convenient to position

Abstract

The utility model relates to the technical field of biopsy forceps, and discloses a pair of biopsy forceps convenient to position, which comprises a machine body, a handle is fixedly arranged on the outer wall of the machine body, a through pipe is fixedly arranged on the outer wall of the machine body, a fixed frame is fixedly arranged at the end part of the through pipe, an adjusting rod is rotatably connected to the inner wall of the fixed frame, and a handle is fixedly arranged on the outer wall of the machine body. A bent rod is fixedly installed on the outer wall of the adjusting rod, a pair of tooth pliers is fixedly installed at the end of the bent rod, the outer wall of the adjusting rod is fixedly connected with one end of a reset torsion spring, and the other end of the reset torsion spring is fixedly connected with the inner wall of the fixing frame. According to the biopsy forceps convenient to position, the positioning rod in the positioning mechanism is inserted into the diseased tissue, the excursion position of the tooth forceps can be prevented, the insertion rod can be popped out of the positioning rod through the elastic force of the bearing spring, and the insertion rod is inserted into the diseased tissue, so that the biopsy forceps can be prevented from sliding down when being taken out.

Description

Technical Field

[0001] This utility model relates to the field of biopsy forceps technology, specifically a biopsy forceps that is easy to position. Background Technology

[0002] Biopsy forceps are an indispensable tool for obtaining pathological specimens in endoscopic examinations. They can be inserted into the patient's body through an endoscope to examine internal diseases, extract lesions, and provide pathological evidence for diagnosis.

[0003] Biopsy forceps are used to remove and extract lesions by using the toothed forceps at the front end. However, when lesions are found, the tip of the forceps tends to wobble during the opening process, which may lead to inaccurate positioning. Furthermore, the forceps may slip after the lesions are cut. Therefore, we need a biopsy forceps that is easier to position. Utility Model Content

[0004] The purpose of this invention is to provide a biopsy forceps that is easy to position, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a biopsy forceps for easy positioning, comprising a body, a handle fixedly installed on the outer wall of the body, a through tube fixedly installed on the outer wall of the body, a fixed frame fixedly installed at the end of the through tube, an adjusting rod rotatably connected to the inner wall of the fixed frame, a bent rod fixedly installed on the outer wall of the adjusting rod, a toothed clamp fixedly installed at the end of the bent rod, one end of the adjusting rod fixedly connected to a reset torsion spring, the other end of the reset torsion spring fixedly connected to the inner wall of the fixed frame, a push plate slidably connected to the inner wall of the fixed frame, a steel wire fixedly connected to the outer wall of the push plate, the steel wire penetrating the interior of the through tube, a positioning mechanism provided on the outer wall of the push plate, a push block slidably connected to the inner wall of the body, one end of the push block fixedly connected to a reset spring, the other end of the reset spring fixedly connected to the inner wall of the body, and an anti-loosening mechanism provided on the body;

[0006] The positioning mechanism includes:

[0007] A positioning rod, used to locate diseased tissue;

[0008] A rotating rod, used to rotate the insertion rod;

[0009] Insertion rod, used to prevent diseased tissue from falling out.

[0010] Preferably, the positioning rod is fixedly installed on the outer wall of the push plate. By inserting the positioning rod into the interior of the lesion tissue, it can prevent the position from shifting. A rotating rod is rotatably connected to the inner wall of the positioning rod, and an insertion rod is fixedly installed on the outer wall of the rotating rod.

[0011] Preferably, the outer wall of the insertion rod is fixedly connected to one end of the bearing spring, and the other end of the bearing spring is fixedly connected to the inner wall of the positioning rod. The elastic force of the bearing spring can cause the insertion rod to be ejected, making it easier for the insertion rod to be inserted into the interior of the diseased tissue.

[0012] Preferably, the anti-loosening mechanism includes a fixing block, which is fixedly installed on the outer wall of the machine body, and a round rod is rotatably connected to the inner wall of the fixing block.

[0013] Preferably, a curved plate is fixedly installed on the outer wall of the round rod, and a locking block is fixedly installed on the bottom wall of the curved plate. The side wall of the locking block is set in an arc shape. By pressing the curved plate, the locking block can be rotated to release the limitation on the locking rod. The outer wall of the round rod is fixedly connected to one end of the limiting torsion spring, and the other end of the limiting torsion spring is fixedly connected to the inner wall of the fixed block. The elastic force of the limiting torsion spring can cause the curved plate to drive the locking block on the bottom wall to lock the locking rod.

[0014] Preferably, a locking rod is fixedly installed on the outer wall of the push block, and the locking rod is engaged inside the locking block.

[0015] Compared with the prior art, this utility model provides a biopsy forceps that is easy to position, and has the following beneficial effects:

[0016] 1. This easy-to-position biopsy forceps inserts into the lesion tissue through a positioning rod in the positioning mechanism, which can prevent the position of the forceps from shifting. The elastic force of the bearing spring can make the insertion rod pop out of the positioning rod. Inserting the insertion rod into the lesion tissue can prevent it from slipping during removal.

[0017] 2. The biopsy forceps, which are easy to position, use a locking rod in the anti-loosening mechanism to move to the right and press against the arc-shaped outer wall of the locking block. This allows the locking block to drive the bent plate to flip upward and release the limit, making it easy to engage. The elastic force of the limiting torsion spring allows the bent plate to drive the locking block on the bottom wall to engage the locking rod. This keeps the position of the push plate unchanged and prevents the push plate from shaking and causing the forceps to open and close. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0019] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0020] Figure 3 This utility model Figure 1 Enlarged schematic diagram of structure A in the middle;

[0021] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the B-structure.

[0022] In the diagram: 1. Body; 2. Handle; 3. Through pipe; 4. Fixing frame; 5. Adjusting rod; 6. Bending rod; 7. Return torsion spring; 8. Gear clamp; 9. Steel wire; 10. Push plate; 11. Positioning mechanism; 111. Positioning rod; 112. Rotating rod; 113. Inserting rod; 114. Bearing spring; 12. Push block; 13. Return spring; 14. Anti-loosening mechanism; 141. Fixing block; 142. Round rod; 143. Bending plate; 144. Limiting torsion spring; 145. Locking block; 146. Locking rod. Detailed Implementation

[0023] like Figures 1-4 As shown, this utility model provides a technical solution: a biopsy forceps for easy positioning, including a body 1, a handle 2 fixedly installed on the outer wall of the body 1, a through tube 3 fixedly installed on the outer wall of the body 1, a fixing frame 4 fixedly installed at the end of the through tube 3, an adjusting rod 5 rotatably connected to the inner wall of the fixing frame 4, a bent rod 6 fixedly installed on the outer wall of the adjusting rod 5, and a toothed forceps 8 fixedly installed at the end of the bent rod 6. The toothed forceps 8 can cut the lesion tissue. The outer wall of the adjusting rod 5 is fixedly connected to one end of a reset torsion spring 7. The other end of the reset torsion spring 7 is fixedly connected to the inner wall of the fixed frame 4. A push plate 10 is slidably connected to the inner wall of the fixed frame 4. A steel wire 9 is fixedly connected to the outer wall of the push plate 10. The steel wire 9 passes through the inside of the through pipe 3. A positioning mechanism 11 is provided on the outer wall of the push plate 10. A push block 12 is slidably connected to the inner wall of the machine body 1. The outer wall of the push block 12 is fixedly connected to one end of the reset spring 13. The other end of the reset spring 13 is fixedly connected to the inner wall of the machine body 1. An anti-loosening mechanism 14 is provided on the machine body 1.

[0024] In this embodiment, a positioning mechanism 11 is provided on the outer wall of the push plate 10. The positioning rod 111 in the positioning mechanism 11 is inserted into the interior of the lesion tissue, which can prevent the position of the toothed forceps 8 from shifting. The elastic force of the bearing spring 114 can make the insertion rod 113 pop out of the interior of the positioning rod 111. The insertion rod 113 is inserted into the interior of the lesion tissue, which can prevent slippage when it is removed.

[0025] In this embodiment, the body 1 is provided with an anti-loosening mechanism 14. The locking rod 146 in the anti-loosening mechanism 14 moves to the right to squeeze the arc-shaped outer wall of the locking block 145, which can cause the locking block 145 to drive the bending plate 143 to flip upward to release the limit and facilitate locking. The elastic force of the limiting torsion spring 144 can cause the bending plate 143 to drive the locking block 145 on the bottom wall to lock the locking rod 146, which can keep the position of the push plate 10 unchanged and prevent the push plate 10 from shaking and causing the opening and closing of the toothed clamp 8.

[0026] The aforementioned positioning mechanism 11 includes a positioning rod 111, which is fixedly installed on the outer wall of the push plate 10. The push plate 10 drives the positioning rod 111 on the outer wall to insert into the interior of the lesion tissue, which can prevent the position from shifting. A rotating rod 112 is rotatably connected to the inner wall of the positioning rod 111. An insertion rod 113 is fixedly installed on the outer wall of the rotating rod 112. The outer wall of the insertion rod 113 is fixedly connected to one end of the bearing spring 114, and the other end of the bearing spring 114 is fixedly connected to the inner wall of the positioning rod 111. The elastic force of the bearing spring 114 can make the insertion rod 113 pop out, which facilitates the insertion rod 113 into the interior of the lesion tissue and prevents it from slipping.

[0027] The aforementioned anti-loosening mechanism 14 includes a fixing block 141, which is fixedly installed on the outer wall of the machine body 1. A round rod 142 is rotatably connected to the inner wall of the fixing block 141. A bent plate 143 is fixedly installed on the outer wall of the round rod 142. A locking block 145 is fixedly installed on the bottom wall of the bent plate 143. By pressing the bent plate 143, the locking block 145 can be rotated to release the limit on the locking rod 146. The side wall of the locking block 145 is set in an arc shape. The rightward movement of the locking rod 146 affects the arc shape of the locking block 145. The outer wall is squeezed, which causes the locking block 145 to drive the bending plate 143 to flip upward and release the limit, making it easy to lock. The outer wall of the round rod 142 is fixedly connected to one end of the limiting torsion spring 144, and the other end of the limiting torsion spring 144 is fixedly connected to the inner wall of the fixing block 141. The elastic force of the limiting torsion spring 144 can cause the bending plate 143 to drive the locking block 145 on the bottom wall to lock the locking rod 146. The locking rod 146 is fixedly installed on the outer wall of the push block 12, and the locking rod 146 is locked inside the locking block 145.

[0028] In this embodiment, during use, the fixed frame 4 at the end of the tube 3 is adjusted by moving the body 1, and then the toothed clamp 8 is aligned with the lesion tissue by the fixed frame 4. At this time, pressing the bent plate 143 causes the locking block 145 to rotate and release the limit on the locking rod 146. Then, by pushing the push block 12 to the left, the push block 12 causes the push plate 10 at the end of the steel wire 9 to move to the left, and then the push plate 10 squeezes the end of the bent rod 6, causing the bent rod 6 to open the toothed clamp 8 at the end. At the same time, the push plate 10 drives the positioning rod 111 on the outer wall to insert into the interior of the lesion tissue to prevent the position from shifting. At this time, the lesion tissue squeezes the outer wall of the insertion rod 113, causing the insertion rod 113 to rotate around the rotating rod 112 and move into the interior of the positioning rod 111. At this time, by releasing the push block 12, the elastic force of the return spring 13 causes the push block 12 to drive the push plate 145 at the end of the steel wire 9 to move to the left. 0 moves to the right to reset. At this time, the push plate 10 drives the insertion rod 113 inside the positioning rod 111 to move to the right relative to the lesion tissue. The elastic force of the bearing spring 114 causes the insertion rod 113 to be ejected, thus inserting the insertion rod 113 into the interior of the lesion tissue to prevent slippage. At the same time, the elastic force of the reset torsion spring 7 causes the bent rod 6 to drive the toothed clamp 8 at the end to rotate and reset, thus cutting the lesion tissue through the toothed clamp 8. Meanwhile, the push block 12 drives the clamp rod 146 to move to the right to squeeze the arc-shaped outer wall of the clamp block 145, causing the clamp block 145 to drive the bent plate 143 to flip upward to release the limit. Then, the elastic force of the limit torsion spring 144 causes the bent plate 143 to drive the clamp block 145 on the bottom wall to clamp the clamp rod 146, thus keeping the position of the push plate 10 unchanged and preventing the push plate 10 from shaking and causing the toothed clamp 8 to open and close. Finally, the sampling of the lesion tissue is completed.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A biopsy forceps for easy positioning, comprising a body (1), wherein a handle (2) is fixedly installed on the outer wall of the body (1), characterized in that: A through pipe (3) is fixedly installed on the outer wall of the body (1). A fixed frame (4) is fixedly installed at the end of the through pipe (3). An adjusting rod (5) is rotatably connected to the inner wall of the fixed frame (4). A bent rod (6) is fixedly installed on the outer wall of the adjusting rod (5). A toothed pliers (8) is fixedly installed at the end of the bent rod (6). The outer wall of the adjusting rod (5) is fixedly connected to one end of a reset torsion spring (7). The other end of the reset torsion spring (7) is fixedly connected to the inner wall of the fixed frame (4). The inner wall of the fixed frame (4) A push plate (10) is slidably connected to the upper part of the body (1). A steel wire (9) is fixedly connected to the outer wall of the push plate (10). The steel wire (9) passes through the interior of the tube (3). A positioning mechanism (11) is provided on the outer wall of the push plate (10). A push block (12) is slidably connected to the inner wall of the body (1). The outer wall of the push block (12) is fixedly connected to one end of a reset spring (13). The other end of the reset spring (13) is fixedly connected to the inner wall of the body (1). An anti-loosening mechanism (14) is provided on the body (1). The positioning mechanism (11) includes: A positioning rod (111) is used to locate the diseased tissue; Rotating rod (112), the rotating rod (112) is used to rotate the insertion rod (113); Insertion rod (113) is used to prevent diseased tissue from falling off.

2. The biopsy forceps for easy positioning according to claim 1, characterized in that: The positioning rod (111) is fixedly installed on the outer wall of the push plate (10), and a rotating rod (112) is rotatably connected to the inner wall of the positioning rod (111), and an insert rod (113) is fixedly installed on the outer wall of the rotating rod (112).

3. A biopsy forceps for easy positioning according to claim 2, characterized in that: The outer wall of the insertion rod (113) is fixedly connected to one end of the bearing spring (114), and the other end of the bearing spring (114) is fixedly connected to the inner wall of the positioning rod (111).

4. The biopsy forceps for easy positioning according to claim 3, characterized in that: The anti-loosening mechanism (14) includes a fixing block (141), which is fixedly installed on the outer wall of the machine body (1), and a round rod (142) is rotatably connected to the inner wall of the fixing block (141).

5. A biopsy forceps for easy positioning according to claim 4, characterized in that: A bent plate (143) is fixedly installed on the outer wall of the round rod (142), and a locking block (145) is fixedly installed on the bottom wall of the bent plate (143). The side wall of the locking block (145) is set in an arc shape. The outer wall of the round rod (142) is fixedly connected to one end of the limiting torsion spring (144), and the other end of the limiting torsion spring (144) is fixedly connected to the inner wall of the fixing block (141).

6. A biopsy forceps for easy positioning according to claim 5, characterized in that: A locking rod (146) is fixedly installed on the outer wall of the push block (12), and the locking rod (146) is engaged inside the locking block (145).

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