Rongeur

Abstract

The invention discloses a bone rongeur, comprising: a handle, the handle comprising a fixed handle and a movable handle, the fixed handle and the pliers tube are an integrated structure, a first connecting wire is arranged in the pliers tube, and the movable handle is fixedly connected to one end of the first connecting wire; an adjusting tube, one end of which has a spiral adjusting hole, and the adjusting tube is plug-connected with the pliers tube; a pliers head, comprising a lower pliers head, an upper pliers head, a pliers body, a connecting frame, a second connecting wire, a first adjusting rod and a second adjusting rod, the upper pliers head is rotatably connected to the pliers body, the connecting frame is arranged in the pliers body, one end of the connecting frame is rotatably connected to the upper pliers head, the other end is connected to one end of the second connecting wire, the other end of the second connecting wire is connected to the first connecting wire, the first adjusting rod and the second adjusting rod are both hingedly connected to the pliers body, and two guide grooves are arranged at the end of the pliers tube, and the first adjusting rod and the second adjusting rod are plug-connected to the guide grooves respectively. The invention has the function of multi-angle adjustment and a very wide working range.

Description

Technical Field

[0001] The invention relates to a surgical forceps, in particular to a bone rongeur, belonging to the field of medical instruments. Background Art

[0002] With the advancement of technology, more and more people use computers for work. Since using computers for work requires sitting for a long time, it is very harmful to the lumbar and cervical vertebrae of the human body. Therefore, in cities, more and more white-collar workers suffer from lumbar and cervical spondylosis.

[0003] When treating some difficult lumbar and cervical spine diseases, surgical treatment is required. In order to reduce the harm caused by surgery to the human body, people have developed minimally invasive surgery. Bone rongeurs are an indispensable tool in minimally invasive surgery of the lumbar and cervical spine.

[0004] Most existing bone rongeurs adopt an integrated structure and cannot be disassembled, resulting in incomplete disinfection and sterilization. In addition, the angle of existing bone rongeurs cannot be adjusted, and the problem of the forceps head failing to reach the affected area smoothly often occurs during surgery, which increases the difficulty of the operation. Summary of the invention

[0005] The purpose of the present invention is to provide a rongeur to solve the deficiencies in the prior art. The rongeur has the function of multi-angle adjustment and a very wide working range.

[0006] The present invention provides a rongeur, comprising:

[0007] A handle, wherein the handle comprises a fixed handle and a movable handle, wherein the fixed handle and the pliers tube are an integrated structure, wherein a first connecting wire is arranged in the pliers tube, wherein the movable handle is rotatably connected to the fixed handle, and wherein the movable handle is fixedly connected to one end of the first connecting wire;

[0008] An adjusting tube, one end of which has a spiral adjusting hole, the adjusting tube is plug-connected to the clamp tube and can rotate around the clamp tube;

[0009] The pliers head comprises a lower pliers head, an upper pliers head, a pliers body, a connecting frame, a second connecting wire, a first adjusting rod and a second adjusting rod. The lower pliers head and the pliers body are an integrated structure. The upper pliers head is rotatably connected to the pliers body and cooperates with the lower pliers head. The connecting frame is arranged in the pliers body, one end of which is rotatably connected to the upper pliers head, and the other end is connected to one end of the second connecting wire. The other end of the second connecting wire is connected to the first connecting wire. The first adjusting rod and the second adjusting rod are arranged opposite to each other, and both are hingedly connected to the pliers body. The first adjusting rod is provided with a protrusion that cooperates with the spiral adjustment hole. The end of the pliers tube is provided with two guide grooves, and the first adjusting rod and the second adjusting rod are respectively plug-connected to the guide grooves.

[0010] In the aforementioned rongeur, the lower pliers head has a hollow portion.

[0011] In the aforementioned bone-holding forceps, the upper jaw has a first mounting hole and a second mounting hole. When the upper jaw and the lower jaw are engaged together, the first mounting hole is located directly below the second mounting hole. A first rotating shaft is installed in the first mounting hole, and the upper jaw is rotatably connected to the jaw body via the first rotating shaft. A second rotating shaft is installed in the second mounting hole, and the upper jaw is rotatably connected to the connecting frame via the second rotating shaft.

[0012] In the aforementioned bone-binding forceps, the forceps body is provided with a through hole, the second connecting wire passes through the through hole, the forceps body is provided with a first connecting protrusion and a second connecting protrusion on the end surface close to the adjusting tube, the two are arranged in the horizontal direction, the first connecting protrusion is longer than the second connecting protrusion, and also includes a transition rod, the first connecting protrusion is rotatably connected to the second adjusting rod, the first connecting protrusion is rotatable in the horizontal direction relative to the second adjusting rod, the second connecting protrusion is rotatably connected to the first adjusting rod via the transition rod, and the second connecting protrusion and the transition rod are both rotatable in the horizontal direction relative to the first adjusting rod.

[0013] In the aforementioned bone rongeurs, magnets are provided at the ends of the first connecting wire and the second connecting wire, and the two are attracted together by the magnetic force of the magnets.

[0014] In the aforementioned bone-holding forceps, a connecting column is provided at one end of the forceps tube connected to the fixed handle, and the connecting column has an annular groove; an adjuster is provided at one end of the adjustment tube close to the handle, and the adjuster is installed on the connecting column and can rotate around the annular groove of the connecting column.

[0015] In the aforementioned bone-holding forceps, the adjuster includes an adjusting body, a pressing portion, a spring and a locking rod. A mounting groove is radially opened on the adjusting body, the pressing portion is installed in the mounting groove, the locking rod is located in the mounting groove and is connected to the bottom surface of the pressing portion through a connecting rod, and the spring is arranged at the bottom of the mounting groove and abuts against the bottom surface of the locking rod.

[0016] In the aforementioned bone rongeurs, an arcuate groove is provided on one side of the locking rod facing the pressing portion, and the diameter of the arcuate groove is equal to the diameter of the annular groove.

[0017] In the aforementioned bone-binding forceps, the second connecting wire is a two-section structure, namely a first section and a second section. The first section passes through the through hole, one end of which is fixedly connected to the connecting frame, and the other end has a first U-shaped connecting portion. One end of the second section is connected to the first connecting wire, and the other end has a second U-shaped connecting portion. The first U-shaped connecting portion and the second U-shaped connecting portion are connected by a cross axis.

[0018] In the aforementioned rongeur, the outer wall of the adjustment tube has scales.

[0019] Compared with the prior art, the present invention comprises a handle, an adjustment tube and a pliers head, wherein one end of the adjustment tube has a spiral adjustment hole, the adjustment tube is plug-connected with the pliers tube and can rotate around the pliers tube; the pliers head comprises a lower pliers head, an upper pliers head, a pliers body, a connecting frame, a second connecting wire, a first adjusting rod and a second adjusting rod, the lower pliers head and the pliers body are an integrated structure, the upper pliers head is rotatably connected with the pliers body and matched with the lower pliers head, the connecting frame is arranged in the pliers body, one end of the upper pliers head is rotatably connected with the upper pliers head, the other end is connected with one end of the second connecting wire, the other end of the second connecting wire is connected with the first connecting wire, the first adjusting rod and the second adjusting rod are arranged oppositely, both are hingedly connected with the pliers body, the first adjusting rod is provided with a protrusion matched with the spiral adjustment hole, the end of the pliers tube is provided with two guide grooves, the first adjusting rod and the second adjusting rod are plug-connected with the guide grooves respectively. Through this special pliers head structure, the adjustment angles of the upper pliers head and the lower pliers head can be controlled by rotating the adjustment tube, and the opening and closing of the upper pliers head and the lower pliers head can also be controlled by the handle. The invention has a very large working range, so that doctors do not need to repeatedly change forceps during surgery, thereby improving surgical efficiency and surgical success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axonometric diagram of the overall structure of the present invention;

[0021] Figure 2 is an exploded view of the present invention;

[0022] Figure 3 This is an exploded view of the clamp head;

[0023] Figure 4 This is an exploded view of the regulator;

[0024] Figure 5 This is an axonometric view of the second connecting wire.

[0025] Description of reference numerals: 1-fixed handle, 2-movable handle, 3-clamp tube, 4-first connecting wire, 5-adjusting tube, 6-spiral adjusting hole, 7-lower clamp head, 8-upper clamp head, 9-clamp body, 10-connecting frame, 11-second connecting wire, 12-first adjusting rod, 13-second adjusting rod, 14-protrusion, 15-guide groove, 16-first mounting hole, 17-second mounting hole, 18-first rotating shaft, 19-second rotating shaft, 20- Through hole, 21-first connecting protrusion, 22-second connecting protrusion, 23-transition rod, 24-connecting column, 25-annular groove, 26-adjuster, 27-adjusting body, 28-pressing part, 29-spring, 30-locking rod, 31-installing groove, 32-connecting rod, 33-arc groove, 34-hollow part, 35-first section, 36-second section, 37-first U-shaped connecting part, 38-second U-shaped connecting part, 39-cross axis. DETAILED DESCRIPTION

[0026] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.

[0027] Embodiments of the present invention: Figure 1 and Figure 2 As shown, a bone rongeur comprises: a handle, the handle comprises a fixed handle 1 and a movable handle 2, the movable handle 2 is rotatably connected to the fixed handle 1 through a rotating shaft, the fixed handle 1 and the clamp tube 3 are an integrated structure, a first connecting wire 4 is provided in the clamp tube 3, and the top of the movable handle 2 is fixedly connected to one end of the first connecting wire 4;

[0028] The adjusting tube 5 has a spiral adjusting hole 6 at one end. The adjusting tube 5 is plug-connected to the clamp tube 3 and can rotate around the clamp tube 3. The outer wall of the adjusting tube 5 has scales.

[0029] The pliers head comprises a lower pliers head 7, an upper pliers head 8, a pliers body 9, a connecting frame 10, a second connecting wire 11, a first adjusting rod 12 and a second adjusting rod 13. The lower pliers head 7 and the pliers body 9 are an integrated structure. The upper pliers head 8 is rotatably connected to the pliers body 9 and cooperates with the lower pliers head 7. The connecting frame 10 is arranged in the pliers body 9, one end of which is rotatably connected to the upper pliers head 8, and the other end is connected to one end of the second connecting wire 11. The other end of the second connecting wire 11 is connected to the first connecting wire 4. The first adjusting rod 12 and the second adjusting rod 13 are arranged opposite to each other, and both are hingedly connected to the pliers body 9. The first adjusting rod 12 is provided with a protrusion 14 that cooperates with the spiral adjusting hole 6. The end of the pliers tube 3 is provided with two guide grooves 15. The first adjusting rod 12 and the second adjusting rod 13 are respectively plug-connected to the guide grooves 15.

[0030] When in use, the thumb and index finger control the fixed handle 1 and the movable handle 2 respectively. In order to improve controllability, a circular ring structure can be set on the fixed handle 1 and the movable handle 2 to fix the fingers. The movable handle 2 is located on the side close to the pliers head, and the index finger is used to control the angle between it and the fixed handle 1. When the movable handle 2 moves in the direction close to the fixed handle 1, the top of the movable handle 2 pushes the first connecting wire 4, the first connecting wire 4 pushes the second connecting wire 11, the second connecting wire 11 pushes the connecting frame 10, and the connecting frame 10 pushes the upper pliers head 8 to achieve the closure of the upper pliers head 8 and the lower pliers head 7. Since the first connecting wire 4 and the second connecting wire 11 are detachably connected, the use of thrust to achieve the closure of the upper and lower pliers heads can further increase the bite force. When it is necessary to adjust the angle between the pliers head and the pliers tube 3, it is only necessary to rotate the adjusting tube 5. When the adjusting tube 5 rotates, the spiral adjusting hole 6 at its end drives the protrusion 14 to move along the spiral adjusting hole 6. Since the adjusting tube 5 only produces circumferential movement but no axial displacement relative to the pliers tube 3, under the drive of the spiral adjusting hole 6 and the circumferential freedom restriction of the guide groove 15, the first adjusting rod 12 can only produce axial displacement, causing the angle of the pliers head to change.

[0031] Furthermore, a hollow portion 34 is provided on the lower clamp head 7. The hollow portion 34 can increase the bite force, and improve the stability and firmness.

[0032] When there is an included angle between the pliers head and the pliers tube 3, in order for the present invention to be used normally, the second connecting wire 11 needs to be made of a metal wire with good flexibility.

[0033] Of course, you can also use Figure 5 In the structure shown, the second connecting wire 11 is a two-section structure, namely a first section 35 and a second section 36. The first section 35 runs through the through hole 20, one end of which is fixedly connected to the connecting frame 10, and the other end has a first U-shaped connecting portion 37. One end of the second section 36 is connected to the first connecting wire 4, and the other end has a second U-shaped connecting portion 38. The first U-shaped connecting portion 37 and the second U-shaped connecting portion 38 are connected by a cross shaft 39.

[0034] In a preferred embodiment, Figure 2 and Figure 3As shown, the upper clamp head 8 has a first mounting hole 16 and a second mounting hole 17. When the upper clamp head 8 and the lower clamp head 7 are engaged together, the first mounting hole 16 is located directly below the second mounting hole 17. A first rotating shaft 18 is installed in the first mounting hole 16, and the upper clamp head 8 is rotatably connected to the clamp body 9 via the first rotating shaft 18. A second rotating shaft 19 is installed in the second mounting hole 17, and the upper clamp head 8 is rotatably connected to the connecting frame 10 via the second rotating shaft 19. The caliper body 9 has a through hole 20, and the second connecting wire 11 passes through the through hole 20. The end surface of the caliper body 9 close to the adjusting tube 5 has a first connecting protrusion 21 and a second connecting protrusion 22, which are arranged in the horizontal direction. The first connecting protrusion 21 is longer than the second connecting protrusion 22. The caliper body 9 also includes a transition rod 23. The first connecting protrusion 21 is rotatably connected to the second adjusting rod 13, and the first connecting protrusion 21 is rotatable in the horizontal direction relative to the second adjusting rod 13. The second connecting protrusion 22 is rotatably connected to the first adjusting rod 12 through the transition rod 23, and the second connecting protrusion 22 and the transition rod 23 are both rotatable in the horizontal direction relative to the first adjusting rod 12. The ends of the first connecting wire 4 and the second connecting wire 11 are both provided with magnets, and the two are adsorbed together by the magnetic force of the magnets.

[0035] The above structure can ensure the movement compliance of the second connecting wire 11, which is the key to ensure smooth coordination between the components. The first connecting wire 4 and the second connecting wire 11 are connected by magnetic adsorption, which can facilitate the assembly of the two and improve the assembly and disassembly efficiency. In addition, the above structural design can make the present invention split into three major parts, so that the present invention can be thoroughly disinfected and the safety of the operation can be ensured.

[0036] In another embodiment, if Figure 2 and Figure 4 As shown, a connecting column 24 is provided at one end of the clamp tube 3 connected to the fixed handle 1, and an annular groove 25 is provided on the connecting column 24; an adjuster 26 is provided at one end of the adjusting tube 5 close to the handle, and the adjuster 26 is installed on the connecting column 24 and can rotate around the annular groove 25 of the connecting column 24. The adjuster 26 includes an adjusting body 27, a pressing portion 28, a spring 29 and a locking rod 30. A mounting groove 31 is radially provided on the adjusting body 27, the pressing portion 28 is installed in the mounting groove 31, the locking rod 30 is located in the mounting groove 31, and is connected to the bottom surface of the pressing portion 28 through a connecting rod 32. The spring 29 is provided at the bottom of the mounting groove 31 and abuts against the bottom surface of the locking rod 30. An arc groove 33 is provided on the side of the locking rod 30 facing the pressing portion 28, and the diameter of the arc groove 33 is equal to the diameter of the annular groove 25.

[0037] With this structure, the adjusting tube 5 can be easily removed from the clamp tube 3, thereby improving the installation and removal efficiency.

[0038] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A rongeur, characterized in that: include: A handle, the handle comprising a fixed handle (1) and a movable handle (2), the fixed handle (1) and the clamp tube (3) being an integrated structure, a first connecting wire (4) being provided in the clamp tube (3), the movable handle (2) being rotatably connected to the fixed handle (1), and the movable handle (2) being fixedly connected to one end of the first connecting wire (4); An adjusting tube (5) having a spiral adjusting hole (6) at one end, the adjusting tube (5) being plug-connected to the clamp tube (3) and being rotatable around the clamp tube (3); The clamp head comprises a lower clamp head (7), an upper clamp head (8), a clamp body (9), a connecting frame (10), a second connecting wire (11), a first adjusting rod (12) and a second adjusting rod (13), wherein the lower clamp head (7) and the clamp body (9) are an integrated structure, the upper clamp head (8) is rotatably connected to the clamp body (9) and cooperates with the lower clamp head (7), and the connecting frame (10) is arranged in the clamp body (9), one end of which is rotatably connected to the upper clamp head (8) and the other end is connected to the second connecting wire (11). One end of the clamp tube (3) is connected, the other end of the second connecting wire (11) is connected to the first connecting wire (4), the first adjusting rod (12) and the second adjusting rod (13) are arranged opposite to each other, both of which are hingedly connected to the clamp body (9), the first adjusting rod (12) is provided with a protrusion (14) matching with the spiral adjusting hole (6), and the end of the clamp tube (3) is provided with two guide grooves (15), and the first adjusting rod (12) and the second adjusting rod (13) are respectively plug-connected with the guide grooves (15).

2. The rongeur according to claim 1, characterized in that: The lower clamp head (7) is provided with a hollow portion (34).

3. The rongeur according to claim 1, characterized in that: The upper clamp head (8) is provided with a first mounting hole (16) and a second mounting hole (17); when the upper clamp head (8) and the lower clamp head (7) are engaged together, the first mounting hole (16) is located directly below the second mounting hole (17); a first rotating shaft (18) is installed in the first mounting hole (16); the upper clamp head (8) is rotatably connected to the clamp body (9) via the first rotating shaft (18); a second rotating shaft (19) is installed in the second mounting hole (17); the upper clamp head (8) is rotatably connected to the connecting frame (10) via the second rotating shaft (19).

4. The rongeur according to claim 1, characterized in that: The pliers body (9) has a through hole (20), and the second connecting wire (11) passes through the through hole (20). The end surface of the pliers body (9) close to the adjusting tube (5) has a first connecting protrusion (21) and a second connecting protrusion (22), which are arranged in the horizontal direction. The first connecting protrusion (21) is longer than the second connecting protrusion (22). The pliers body (9) also includes a transition rod (23). The first connecting protrusion (21) is rotatably connected to the second adjusting rod (13). The first connecting protrusion (21) is rotatable relative to the second adjusting rod (13) in the horizontal direction. The second connecting protrusion (22) is rotatably connected to the first adjusting rod (12) through the transition rod (23). Both the second connecting protrusion (22) and the transition rod (23) are rotatable relative to the first adjusting rod (12) in the horizontal direction.

5. The rongeur according to claim 1, characterized in that: The ends of the first connecting wire (4) and the second connecting wire (11) are both provided with magnets, and the two are attracted together by the magnetic force of the magnets.

6. The rongeur according to claim 1, characterized in that: A connecting column (24) is provided at one end of the clamp tube (3) connected to the fixed handle (1), and an annular groove (25) is provided on the connecting column (24); an adjuster (26) is provided at one end of the adjusting tube (5) close to the handle, and the adjuster (26) is installed on the connecting column (24) and can rotate around the annular groove (25) of the connecting column (24).

7. The rongeur according to claim 6, characterized in that: The regulator (26) comprises an adjusting body (27), a pressing portion (28), a spring (29) and a locking rod (30); a mounting groove (31) is radially provided on the adjusting body (27); the pressing portion (28) is mounted in the mounting groove (31); the locking rod (30) is located in the mounting groove (31) and is connected to the bottom surface of the pressing portion (28) via a connecting rod (32); the spring (29) is arranged at the bottom of the mounting groove (31) and abuts against the bottom surface of the locking rod (30).

8. The rongeur according to claim 7, characterized in that: An arc-shaped groove (33) is provided on one side of the locking rod (30) facing the pressing portion (28), and the diameter of the arc-shaped groove (33) is equal to the diameter of the annular groove (25).

9. The rongeur according to claim 4, characterized in that: The second connecting wire (11) is a two-section structure, comprising a first section (35) and a second section (36); the first section (35) passes through the through hole (20), one end of which is fixedly connected to the connecting frame (10), and the other end of which has a first U-shaped connecting portion (37); one end of the second section (36) is connected to the first connecting wire (4), and the other end of which has a second U-shaped connecting portion (38); the first U-shaped connecting portion (37) and the second U-shaped connecting portion (38) are connected via a cross shaft (39).

10. The rongeur according to claim 1, characterized in that: The outer wall of the regulating tube (5) is provided with scales.

Images