Direction-adjustable grabbing clamp

Abstract

The utility model discloses a pair of direction-adjustable grabbing forceps, and belongs to the technical field of medical instruments. A pair of direction-adjustable grabbing pincers comprises a pincer tube, a pincer body is installed at one end of the pincer tube, the end, away from the pincer tube, of the pincer body is slidably connected with a clamping handle, and a pair of fixing blocks is installed at the end, away from the pincer body, of the pincer tube; a driving part is arranged on a clamp body, a rotating seat of the clamp body can rotate under the cooperation of a ball and a fixed pipe, and a sliding groove is matched with a sliding seat, so that a screw of the rotating seat can drive a connecting seat to move directionally and pull a connecting wire synchronously through the rotation of the rotating seat; through cooperation of the rotating shaft, the fixing block and the rotating pipe and pulling of the connecting line, the tong head can be driven to conduct angle change, after the angle is changed, the tong head can be controlled to conduct grabbing through the clamping handle, the flexibility of the sampling position is met, the sampling accuracy is improved, the sampling time is shortened, and the device can adapt to sampling channels with different bending degrees.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to an adjustable grasping forceps. Background Art

[0002] A surgical grasping forceps is a medical device used for clamping, grasping, and moving tissues or instruments during surgery. Depending on its use, structure, and material, a surgical grasping forceps usually consists of a handle, a rod, and a head. The handle is the part held by the doctor, the rod connects the handle and the head, and the head is the part that directly acts on the surgical site.

[0003] During a biopsy operation on living tissue, it is necessary to operate the proximal handle to control the opening and closing of the distal head to achieve the clamping action. Existing biopsy forceps have certain defects. The flexibility of the head during clamping is relatively low. Due to the limitation of the surgical field of view, there are positions that are difficult to reach, resulting in repeated exploration and attempts during the operation, with a high failure rate and low efficiency. At the same time, the grasping part of the existing handle is an open structure, and the operator is prone to slippage during operation, posing a certain surgical risk. Summary of the Invention

[0004] The purpose of the utility model is to provide an adjustable grasping forceps for the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an adjustable grasping forceps, including a forceps tube, one end of the forceps tube is installed with a forceps body, the end of the forceps body far from the forceps tube is slidably connected with a clamping handle, one end of the forceps tube far from the forceps body is installed with a pair of fixing blocks, a rotating tube is arranged inside the pair of fixing blocks, one end of the rotating tube far from the forceps tube is installed with a forceps head, a connecting wire is installed on the outer side of the forceps head, the other end of the connecting wire obliquely penetrates and extends to the inside of the forceps tube, and a driving part connected with the connecting wire is arranged on the forceps body.

[0006] By adopting the above technical scheme, it is possible to stably and reliably sample living tissues, grasp foreign objects, meet the flexibility of the sampling position, increase the accuracy of sampling, shorten the sampling time, and can adapt to sampling channels with different bending degrees, reducing the sampling risk.

[0007] Optionally, two wire channels are opened inside the forceps body, and one end of each of the two wire channels is communicated with the forceps tube.

[0008] By adopting the above technical scheme, the two wire channels are provided for the smooth movement of the pulling rope and the connecting wire, ensuring that the operation is not hindered.

[0009] Optionally, the diameter of the rotating tube is smaller than that of the clamping tube. The rotating tube is rotatably connected to the fixed block through a rotating shaft, and a torsion spring is provided between the rotating tube and the fixed block outside the rotating shaft.

[0010] By adopting the above technical solution, the setting of the torsion spring provides a restoring force for the rotating tube to ensure that it can automatically return to the initial position or a stable position after rotation.

[0011] Optionally, the driving member includes a first driving member. The first driving member includes a pair of fixed tubes installed on the pliers body. A rotating seat is provided at one end of the pair of fixed tubes facing each other. A screw rod passing through the fixed tube is threadedly connected to the inside of the rotating seat. An installation groove is provided on the pliers body, and a connecting seat is provided inside the installation groove. The connecting seat is fixedly connected to one end of the screw rod, and the end of the connecting seat away from the screw rod is connected to a connecting wire.

[0012] By adopting the above technical solution, the setting of the first driving member improves the accuracy of sampling, shortens the sampling time, and can adapt to sampling channels with different bending degrees.

[0013] Optionally, a sliding seat is fixedly connected to the outside of the connecting seat, and a sliding groove for the sliding seat to slide is provided on the inner side wall of the installation groove.

[0014] By adopting the above technical solution, the setting of the sliding seat and the sliding groove enables the connecting seat to move in a fixed direction.

[0015] Optionally, the driving member includes a second driving member. The second driving member includes a cavity provided on the pliers body. A moving seat is provided inside the cavity. One end of the moving seat is connected to the connecting wire. A connecting rod is fixedly connected to the outside of the moving seat, and an adjusting knob is threadedly connected to the outside of the connecting rod.

[0016] By adopting the above technical solution, the setting of the second driving member improves the accuracy of sampling, shortens the sampling time, and can adapt to sampling channels with different bending degrees.

[0017] Optionally, the driving member includes a third driving member. The third driving member includes a rotating groove provided on the pliers body. A pair of rotating wheels are provided inside the rotating groove. A winding rod is fixedly connected between the pair of rotating wheels, and a connecting wire is provided on the outside of the winding rod.

[0018] By adopting the above technical solution, the setting of the third driving member improves the accuracy of sampling, shortens the sampling time, and can adapt to sampling channels with different bending degrees.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] 1. By setting a driving member on the pliers body, with the cooperation of the ball and the fixed tube, the rotating seat can rotate. With the cooperation between the sliding groove and the sliding seat, the rotation of the rotating seat enables the screw rod to drive the connecting seat to move directionally, synchronously pulling the connecting wire. By setting a rotating member at the connection between the pliers tube and the pliers head, with the cooperation of the rotating shaft, the fixed block and the rotating tube, the pulling of the connecting wire can drive the pliers head to change its angle. After the angle change, the pliers head can also be controlled to grip by the clamping handle, meeting the flexibility of the sampling position, increasing the accuracy of sampling, shortening the sampling time, and being able to adapt to sampling channels with different bending degrees; 2. A grip is set on the outer side of the pliers body, and both the grip and the clamping handle are set in a double-ring structure, making the operator stable and reliable during operation and not easy to slip off. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view structural schematic diagram of the grasping pliers of the present utility model;

[0022] Figure 2 It is a three-dimensional connection structural schematic diagram of the fixed block and the rotating tube of the present utility model;

[0023] Figure 3 It is a sectional connection structural schematic diagram of the fixed block and the rotating tube of the present utility model;

[0024] Figure 4 It is a connection structural schematic diagram of the first driving member and the pliers body of the present utility model;

[0025] Figure 5 For the present utility model Figure 4 The enlarged structural schematic diagram at position A in

[0026] Figure 6 It is a connection structural schematic diagram of the second driving member and the pliers body of the present utility model;

[0027] Figure 7 It is the enlarged structural schematic diagram at position B in FIG. 6 of the present utility model;

[0028] Figure 8 It is a connection structural schematic diagram of the third driving member and the pliers body of the present utility model;

[0029] Figure 9 It is a three-dimensional connection structural schematic diagram of the rotating wheel and the winding rod of the present utility model.

[0030] In the figure: 1. Plier tube; 2. Plier body; 201. Wiring channel; 3. Clamping handle; 4. Fixed block; 5. Rotating tube; 501. Rotating shaft; 502. Torsion spring; 6. Plier head; 601. Connecting loop; 7. Connecting wire; 8. First driving member; 81. Fixed tube; 82. Rotating seat; 821. Ball; 83. Screw; 84. Installation groove; 841. Slide groove; 85. Connecting seat; 851. Slide block; 9. Second driving member; 91. Cavity; 911. Slideway; 92. Moving seat; 93. Connecting rod; 94. Adjusting knob; 941. Rubber pad; 10. Third driving member; 1001. Rotating groove; 1002. Rotating wheel; 1003. Winding rod. Detailed implementation mode

[0031] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings in 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 in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work conditions belong to the scope of protection of the present invention.

[0032] Example 1, as Figure 1 - As shown in Figure 5, the specific solution of the embodiment is as follows: An adjustable-direction grasping pliers includes a plier tube 1. One end of the plier tube 1 is installed with a plier body 2. A grip is installed on the outer side of the plier body 2. Two wiring channels 201 are opened on the inner side of the plier body 2. One end of each of the two wiring channels 201 communicates with the plier tube 1. A clamping handle 3 is slidably connected to the end of the plier body 2 away from the plier tube 1. A pull rope is fixedly connected to the end of the clamping handle 3 located inside the plier body 2. The pull rope is located inside the wiring channel 201 and the plier tube 1. Both the clamping handle 3 and the grip are of a double-ring structure. The setting of the double-ring structure makes the operator stable and reliable during operation and not easy to slip off.

[0033] A pair of fixed blocks 4 are installed at the end of the plier tube 1 away from the plier body 2. The fixed blocks 4 are arc-shaped, and the thickness of the fixed blocks 4 is the same as the thickness of the side wall of the plier tube 1. The pair of fixed blocks 4 are symmetrically distributed. A rotating tube 5 is provided inside the pair of fixed blocks 4. The diameter of the rotating tube 5 is smaller than the diameter of the plier tube 1. The rotating tube 5 is rotatably connected to the fixed blocks 4 through a rotating shaft 501. A torsion spring 502 is provided between the rotating tube 5 and the fixed blocks 4 outside the rotating shaft 501. The number of torsion springs 502 is two, and the setting of the two torsion springs 502 enables the rotated rotating tube 5 to be reset.

[0034] One end of the rotating tube 5 away from the clamping tube 1 is provided with a clamping head 6. A connecting wire loop 601 is fixedly connected to the outer side of the clamping head 6. A transmission member for closing and opening the double scissors is arranged inside the clamping head 6. The transmission member includes a guide wheel, a pulley, a gear and a connecting rod. The transmission member of the clamping head 6 is a known prior art. One end of the pulling rope away from the clamping handle 3 passes through the rotating tube 5 and is connected to the clamping head 6. Under the precise pulling of the pulling rope, the transmission mechanism inside the clamping head 6 can be controlled, and then the opening and closing actions of the clamping head 6 can be realized. This design enables the surgical grasping forceps to flexibly and accurately grasp and release the target tissue or instrument during minimally invasive surgery;

[0035] A connecting wire 7 is installed on the outer side of the clamping head 6. The connecting wire 7 is connected to the connecting wire loop 601. The other end of the connecting wire 7 obliquely penetrates and extends to the inside of the clamping tube 1. A driving member connected to the connecting wire 7 is arranged on the clamping body 2. The driving member includes a first driving member 8. The first driving member 8 includes a pair of fixed tubes 81 installed on the clamping body 2. Rotating seats 82 are arranged at opposite ends of the pair of fixed tubes 81. Rotating grooves are respectively formed on both sides of the rotating seats 82 and on one side of the pair of fixed tubes 81 opposite to each other. A ball 821 is movably connected inside the rotating groove. The cooperation between the ball 821 and the rotating groove enables the rotating seat 82 to rotate.

[0036] A screw rod 83 penetrating the fixed tube 81 is threadedly connected inside the rotating seat 82. An installation groove 84 is formed on the clamping body 2. The wire routing channel 201 communicates with the installation groove 84. A connecting seat 85 is arranged inside the installation groove 84. A sliding seat 851 is fixedly connected to the outer side of the connecting seat 85. A sliding groove 841 for the sliding seat 851 to slide is formed on the inner side wall of the installation groove 84. The cooperation between the sliding groove 841 and the sliding seat 851 enables the connecting seat 85 to move directionally. The directional movement of the connecting seat 85 can limit the screw rod 83 and prevent the screw rod 83 from rotating synchronously with the rotating seat 82. The connecting seat 85 is fixedly connected to one end of the screw rod 83. The end of the connecting seat 85 away from the screw rod 83 is connected to the connecting wire 7. The connecting wire 7 is located inside the wire routing channel 201 and the clamping tube 1.

[0037] The usage steps of the above adjustable-direction grasping forceps are as follows:

[0038] During use, by sliding the clamping handle 3, the pulling rope inside is tightened, so that the double scissors at the end of the clamping head 6 are closed, and the clamping head 6 and the clamping tube 1 are inserted into a specific channel;

[0039] If it is necessary to adjust the direction of the clamping head 6, the rotating tube 5 can be held and gently rotated. Driven by the screw rod 83, the connecting seat 85 moves directionally in the sliding groove 841;

[0040] The movement of the connecting seat 85 will drive the connecting wire 7, so that the connecting wire 7 pulls the clamping head 6;

[0041] Under the action of the pulling force, the rotating tube 5 connected by the rotating shaft 501 adjusts its angle.

[0042] When the desired position is reached, the rotation of the rotating seat 82 is stopped, and the connecting line 7 and the clamping head 6 are fixed at this position.

[0043] The clamping head 6 is controlled to perform a clamping operation through the clamping handle 3 and its pulling rope.

[0044] After the clamping or operation is completed, the rotating seat 82 is rotated in the reverse direction, the connecting line 7 becomes loose, and the torsion spring 502 causes the rotating tube 5 to reset.

[0045] Embodiment 2, as Figures 6 - 7 shown, the difference between the adjustable grasping pliers provided in this embodiment and the adjustable grasping pliers in Embodiment 1 is that: the driving member in Embodiment 2 adopts a No. 2 driving member 9, and the No. 2 driving member 9 includes a cavity 91 opened on the pliers body 2. The cavity 91 is communicated with the wire routing channel 201. A slideway 911 is opened on the side wall of the cavity 91. A moving seat 92 is arranged inside the cavity 91. One end of the moving seat 92 is connected to the connecting line 7. An adjusting knob 94 is fixedly connected to the outside of the moving seat 92. The connecting rod 93 is located inside the slideway 911. The adjusting knob 94 is threadedly connected to the outside of the connecting rod 93. A rubber pad 941 is fixedly connected to the end of the adjusting knob 94 close to the pliers body 2.

[0046] The usage steps of the above adjustable grasping pliers are as follows:

[0047] When in use, by sliding the clamping handle 3, the inner pulling rope is tightened, so that the double shears at the end of the clamping head 6 are closed, and the clamping head 6 and the pliers tube 1 are inserted into a specific channel.

[0048] If it is necessary to adjust the direction of the clamping head 6, slide the adjusting knob 94 towards one end of the clamping handle 3.

[0049] The adjusting knob 94 drives the moving seat 92 to move in position through the connecting rod 93.

[0050] The movement of the moving seat 92 pulls the connecting line 7, and synchronously the connecting line 7 pulls the clamping head 6 to adjust the direction.

[0051] Under the action of the pulling force, the rotating tube 5 connected by the rotating shaft 501 adjusts its angle.

[0052] When the desired position is reached, rotate the adjusting knob 94 to fix it, and synchronously the connecting line 7 and the clamping head 6 are fixed at this position.

[0053] The clamping head 6 is controlled to perform a clamping operation through the clamping handle 3 and its pulling rope.

[0054] After the clamping or operation is completed, rotate the adjustment knob 94 in the reverse direction, the connecting wire 7 becomes loose, and the torsion spring 502 causes the rotating tube 5 to reset.

[0055] Embodiment 3, as Figures 8 - 9 shown, the difference between the adjustable grasping pliers provided in this embodiment and the adjustable grasping pliers in Embodiment 2 is that: in Embodiment 3, the driving member adopts the No. 3 driving member 10, and the No. 3 driving member 10 includes a rotating groove 1001 opened on the pliers body 2. One side of the rotating groove 1001 is communicated with the wire routing channel 201. A pair of rotating wheels 1002 are arranged inside the rotating groove 1001. The pair of rotating wheels 1002 are connected to the rotating groove 1001 through a rotating shaft. A winding rod 1003 is fixedly connected between the pair of rotating wheels 1002, and a connecting wire 7 is arranged outside the winding rod 1003.

[0056] The usage steps of the above adjustable grasping pliers are as follows:

[0057] When in use, by sliding the clamping handle 3, the inner pull rope is tightened, so that the double shears at the end of the clamping head 6 are closed, and the clamping head 6 and the pliers tube 1 are inserted into a specific channel;

[0058] If it is necessary to adjust the direction of the clamping head 6, rotate the rotating wheel 1002 clockwise;

[0059] The rotation of the rotating wheel 1002 drives the connecting wire 7 to be wound, and synchronously the connecting wire 7 pulls the clamping head 6 to adjust the direction;

[0060] Under the action of the pulling force, the rotating tube 5 connected by the rotating shaft 501 adjusts the angle;

[0061] When the required position is reached, press the rotating wheel 1002 by hand, so that the connecting wire 7 and the clamping head 6 are fixed at this position;

[0062] Control the clamping head 6 to perform the clamping operation through the clamping handle 3 and its pull rope;

[0063] After the clamping or operation is completed, rotate the rotating wheel 1002 in the reverse direction, the connecting wire 7 becomes loose, and the torsion spring 502 causes the rotating tube 5 to reset.

[0064] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable-direction grasping clamp, characterized in that, It includes a clamping tube (1), one end of the clamping tube (1) is installed with a clamping body (2), a clamping handle (3) is slidably connected to the end of the clamping body (2) away from the clamping tube (1), a pair of fixing blocks (4) are installed at the end of the clamping tube (1) away from the clamping body (2), a rotating tube (5) is arranged inside the pair of fixing blocks (4), a clamping head (6) is installed at the end of the rotating tube (5) away from the clamping tube (1), a connecting wire (7) is installed on the outer side of the clamping head (6), and the other end of the connecting wire (7) obliquely penetrates and extends to the inside of the clamping tube (1), and a driving member connected to the connecting wire (7) is arranged on the clamping body (2).

2. The adjustable grasping pliers according to claim 1, characterized in that: Two wire channels (201) are opened inside the clamping body (2), and one end of each of the two wire channels (201) communicates with the clamping tube (1).

3. The adjustable grabbing pliers according to claim 1, characterized in that: The diameter of the rotating tube (5) is smaller than that of the clamping tube (1), the rotating tube (5) is rotatably connected to the fixing block (4) through a rotating shaft (501), and a torsion spring (502) located outside the rotating shaft (501) is arranged between the rotating tube (5) and the fixing block (4).

4. The adjustable grasping pliers according to claim 1, characterized in that: The driving member includes a first driving member (8), the first driving member (8) includes a pair of fixing tubes (81) installed on the clamping body (2), a rotating seat (82) is arranged at the opposite ends of the pair of fixing tubes (81), a screw rod (83) penetrating through the fixing tube (81) is threadedly connected to the inside of the rotating seat (82), an installation groove (84) is opened on the clamping body (2), a connecting seat (85) is arranged inside the installation groove (84), the connecting seat (85) is fixedly connected to one end of the screw rod (83), and the end of the connecting seat (85) away from the screw rod (83) is connected to the connecting wire (7).

5. The adjustable grasping pliers according to claim 4, characterized in that: A sliding seat (851) is fixedly connected to the outer side of the connecting seat (85), and a sliding groove (841) for the sliding seat (851) to slide is opened on the inner side wall of the installation groove (84).

6. The adjustable grabbing pliers according to claim 1, characterized in that: The driving member includes a second driving member (9), the second driving member (9) includes a cavity (91) opened on the clamping body (2), a moving seat (92) is arranged inside the cavity (91), one end of the moving seat (92) is connected to the connecting wire (7), a connecting rod (93) is fixedly connected to the outer side of the moving seat (92), and an adjusting knob (94) is threadedly connected to the outer side of the connecting rod (93).

7. The adjustable grabbing pliers according to claim 1, characterized in that: The driving member includes a third driving member (10), the third driving member (10) includes a rotating groove (1001) opened on the clamping body (2), a pair of rotating wheels (1002) are arranged inside the rotating groove (1001), a winding rod (1003) is fixedly connected between the pair of rotating wheels (1002), and the connecting wire (7) is arranged on the outer side of the winding rod (1003).

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