Gun-shaped rongeur

Abstract

The invention relates to the technical field of surgical instruments, and discloses a gun-shaped bone rongeur. Comprising a horizontal hollow pipe, a transverse component moving cavity, a first transverse rod body penetrating hole and a shaft body mounting hole, wherein a first clamping block is fixedly mounted at one end of the horizontal hollow pipe; the transverse component moving cavity is formed in the horizontal hollow pipe; the first transverse rod body penetrating hole is formed in one end of the transverse component moving cavity; the upper limiting sliding groove is formed in the upper half portion of the first transverse rod body penetrating hole, the second transverse rod body penetrating hole is formed in the bottom of the horizontal hollow pipe, and the lower limiting sliding groove is formed in the bottom of the transverse component moving cavity. According to the gun-shaped bone rongeur, the bone can be elastically clamped through the elastic potential energy of the spiral spring, so that the labor intensity of medical staff is relieved, meanwhile, the elastic strength of the spiral spring during working can be changed by directionally rotating the external threaded rod, then the specific clamping strength of equipment is adjusted according to needs, and the gun-shaped bone rongeur has the clamping strength adjusting function.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical instruments, in particular to a gun-shaped rongeur. Background Art

[0002] Rongeur is a surgical instrument used to bite dead bone or trim bone stumps during surgery. It is usually responsible for removing growths on the bone surface and arranging the cross-section of broken bones. It is especially commonly used in spinal surgery. Due to long-term pressure on the spine, various spinal problems are prone to occur. When rongeurs are needed, due to the relatively hard bones, traditional rongeurs are prone to cause hand fatigue after medical staff have operated them for a long time, affecting the accuracy of the subsequent surgery. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a gun-shaped bone-holding forceps, which utilizes the elastic potential energy of the coil spring to elastically clamp the bones, thereby reducing the labor intensity of medical staff. At the same time, by directional rotation of the external threaded rod, the elastic strength of the coil spring during operation can be changed, and then the specific clamping strength of the device required can be adjusted. It has an adjustable clamping strength function, which solves the above-mentioned technical problems.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a gun-shaped bone-holding forceps, comprising a horizontal hollow tube with a No. 1 clamping block fixedly installed at one end, a transverse component movable cavity arranged inside the horizontal hollow tube, a No. 1 transverse rod through-hole arranged at one end of the movable cavity of the transverse component, an axial body mounting hole arranged at the other end of the movable cavity of the transverse component, an upper limit slide groove arranged at the upper half of the No. 1 transverse rod through-hole, a No. 2 transverse rod through-hole arranged at the bottom of the horizontal hollow tube, and a lower limit slide groove arranged at the bottom of the movable cavity of the transverse component, and also including an adjustable elastic clamping mechanism, which is internally provided with a threaded movable disk installed in the movable cavity of the transverse component and capable of directionally moving, an externally threaded rod that can change the position state of the threaded movable disk when rotating, a No. 2 clamping block that can cooperate with the No. 1 clamping block to clamp the bone, a No. 1 coil spring that produces an elastic damping effect on the No. 2 clamping block and the threaded movable disk, and a hook rod located below the horizontal hollow tube and capable of driving the No. 2 clamping block to move.

[0005] The top end of the driving member is mounted on a link rod and the bottom end of the driving member is mounted on a link rod. The driving member is mounted on a link rod with a fixed position on the side of the driving member. The driving member is mounted on a link rod with a fixed position on the side of the driving member.

[0006] Preferably, the threaded structure includes an internal threaded structure provided in the internal threaded hole and an external threaded structure provided at the shaft of the external threaded rod, and the internal threaded structure matches the external threaded structure.

[0007] Preferably, the structural shape of the cross section of the built-in movable disk, the structural shape of the cross section of the threaded movable disk, and the structural shape of the cross section of the movable cavity of the transverse component are consistent and are all polygonal structures, and the structural dimensions of the cross section of the built-in movable disk, the structural dimensions of the cross section of the threaded movable disk, and the structural dimensions of the cross section of the movable cavity of the transverse component match.

[0008] Preferably, the structural shape of the cross section of the limiting pull rod and the structural shape of the cross section of the second transverse rod body perforation are consistent, both are polygonal structures, and the structural dimensions of the cross section of the limiting pull rod and the structural dimensions of the cross section of the second transverse rod body perforation match.

[0009] Preferably, it also includes an adjustable grip mechanism, which is internally provided with a fixing ring fixedly installed at the tail end of the horizontal hollow tube, a contact head located directly below the fixing ring and capable of contacting the bottom surface of the horizontal hollow tube, and a No. 2 coil spring that generates upward elastic pressure on the contact head.

[0010] Preferably, the adjustable grip mechanism includes a longitudinal grip rod integrally arranged at the bottom of the fixing ring, the center of the fixing ring is provided with a ring hole which is sleeved on the tail of the horizontal hollow tube and can move axially along the horizontal hollow tube, the longitudinal grip rod is provided with a longitudinal movement cavity near the interior of the fixing ring, the interior of the longitudinal grip rod is provided with a No. 1 longitudinal rod body through-hole with an open bottom end and a top end connected to the bottom end of the longitudinal movement cavity, the top of the longitudinal grip rod is provided with a No. 2 longitudinal rod body through-hole connecting the top end of the longitudinal movement cavity and the bottom end of the ring hole, the longitudinal grip rod is provided with a contact head which can move axially along the longitudinal movement cavity, and the upper half of the contact head passes through the No. 2 longitudinal rod body through-hole and contacts the outer surface of the horizontal hollow tube, the bottom end of the contact head is fixedly installed with a longitudinal pull rod which passes through the No. 1 longitudinal rod body through-hole, and the interior of the longitudinal movement cavity is provided with a No. 2 coil spring which generates upward elastic pressure on the contact head.

[0011] Preferably, the top end of the abutment head is provided with an arc-shaped concave surface that is consistent with the outer surface structure of the horizontal hollow tube.

[0012] Compared with the prior art, the present invention provides a gun-shaped rongeur with the following beneficial effects: By utilizing the elastic potential energy of the coil spring, the bones can be elastically clamped, thereby reducing the labor intensity of medical staff. At the same time, by directional rotation of the external threaded rod, the elastic strength of the coil spring during operation can be changed, and then the specific clamping strength of the device can be adjusted according to the required clamping strength, thus having an adjustable function. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A perspective view of the present invention; Figure 2 is a three-dimensional cross-sectional view of the present invention; Figure 3 A three-dimensional diagram of the adjustable elastic clamping mechanism of the present invention; Figure 4 is a three-dimensional cross-sectional view of the adjustable elastic clamping mechanism of the present invention; Figure 5 is a three-dimensional diagram of the adjustable grip mechanism of the present invention; Figure 6 It is a three-dimensional cross-sectional view of the adjustable grip mechanism of the present invention.

[0014] : Among them: 1. horizontal hollow tube; 2. No. 1 clamping block; 3. movable cavity of transverse component; 4. No. 1 transverse rod through-hole; 5. upper limit slide; 6. shaft mounting hole; 7. adjustable elastic clamping mechanism; 71. rotating cap; 72. coupling; 73. external threaded rod; 74. threaded moving disk; 75. internal threaded hole; 76. built-in moving disk; 77. No. 1 coil spring; 78. axial moving rod; 79. No. 2 clamping block; 710. longitudinal connecting shaft; 711. limit pull rod; 712. hook rod; 8. adjustable grip mechanism; 81. fixing ring; 82. ring hole; 83. longitudinal grip rod; 84. longitudinal moving cavity; 85. No. 1 longitudinal rod through-hole; 86. No. 2 longitudinal rod through-hole; 87. contact head; 88. longitudinal pull rod; 89. No. 2 coil spring; 9. No. 2 transverse rod through-hole; 10. lower limit slide. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1 and Figure 2 A gun-shaped bone-holding forceps comprises a horizontal hollow tube 1 with a clamping block 2 fixedly installed at one end, a transverse component movable cavity 3 arranged inside the horizontal hollow tube 1, a transverse rod through-hole 4 arranged at one end of the transverse component movable cavity 3, an axis mounting hole 6 arranged at the other end of the transverse component movable cavity 3, an upper limit slide groove 5 arranged at the upper half of the No. 1 transverse rod through-hole 4, a No. 2 transverse rod through-hole 9 arranged at the bottom of the horizontal hollow tube 1 and a lower limit slide groove 10 arranged at the bottom of the transverse component movable cavity 3. Medical staff hold the longitudinal grip 83 and perform bone clamping surgery by controlling the direction of the horizontal hollow tube 1.

[0017] For adjustable clamping strength, see Figure 1 、 Figure 2 、 Figure 3 and Figure 4, it is necessary to set up an adjustable elastic clamping mechanism 7, which is internally provided with a threaded movable disk 74 installed in the movable cavity 3 of the transverse component and capable of directional movement, an externally threaded rod 73 that can change the position state of the threaded movable disk 74 when rotating, a No. 2 clamping block 79 that can cooperate with the No. 1 clamping block 2 to clamp the bone, a No. 1 coil spring 77 that produces an elastic damping effect on the No. 2 clamping block 79 and the threaded movable disk 74, and a hook rod 712 that is located below the horizontal hollow tube 1 and can drive the No. 2 clamping block 79 to move. Directional rotation of the rotating cap 71 will cause the externally threaded rod 73 to directional rotate in the threaded movable disk 74. Due to the threaded connection, the threaded movable disk 74 will be directional and horizontally moved, thereby changing the distance between the built-in movable disk 76 and the threaded movable disk 74 to change the elasticity of the No. 1 coil spring 77 at this time. When the bone is clamped, the index finger or the middle finger hooks the hook rod 712, and then the index finger or the middle finger will make the limit pull rod 711 drive the built-in movable plate 76 to move, thereby making the No. 1 clamping block 2 and the No. 2 clamping block 79 move away from each other. When the distance between the No. 1 clamping block 2 and the No. 2 clamping block 79 is sufficient to clamp the bone, the horizontal hollow tube 1 is manipulated so that the bone is located between the No. 1 clamping block 2 and the No. 2 clamping block 79, and then the tension of the hook rod 712 is released. Under the elastic potential energy of the No. 1 coil spring 77, the built-in movable plate 76 and the axial movable rod 78 push the No. 2 clamping block 79 close to the No. 1 clamping block 2 until the bone is clamped between the No. 1 clamping block 2 and the No. 2 clamping block 79, and the clamping of the bone can be completed.

[0018] For the specific structure of the adjustable elastic clamping mechanism 7, please refer to Figure 3 and Figure 4, including a built-in movable disk 76 and a threaded movable disk 74 placed inside the movable cavity 3 of the transverse component and capable of axially moving along the movable cavity 3 of the transverse component, a No. 1 coil spring 77 is placed between the built-in movable disk 76 and the threaded movable disk 74, an internal threaded hole 75 is provided at the center of the threaded movable disk 74, an external threaded rod 73 is installed in the internal threaded hole 75 of the threaded movable disk 74 through a threaded structure, and a rotating cap 71 is installed at one end of the external threaded rod 73 through a coupling 72, so Part of the cap body of the rotating cap 71 is installed in the interior of the shaft mounting hole 6 through a bearing, and the bottom of the built-in movable plate 76 is fixedly installed with a longitudinal connecting shaft 710 that passes through the lower limit slide groove 10 and can slide horizontally along the lower limit slide groove 10. The bottom shaft of the longitudinal connecting shaft 710 is fixedly installed with a limiting pull rod 711 that passes through the second horizontal rod through hole 9, and one end of the limiting pull rod 711 is fixedly installed with a longitudinal hook rod 712, and one end of the built-in movable plate 76 is fixedly installed with a hook rod that can slide along the first horizontal The axial moving rod 78 moves horizontally inside the rod body through-hole 4, and one end of the axial moving rod 78 is fixedly installed with a No. 2 clamping block 79 that passes through the upper limit slide groove 5 and can move horizontally along the upper limit slide groove 5. The threaded structure includes an internal threaded structure arranged in the internal threaded hole 75 and an external threaded structure arranged at the rod body of the external threaded rod 73, and the internal threaded structure matches the external threaded structure. The structural shape of the cross section of the built-in moving disk 76, the structural shape of the cross section of the threaded moving disk 74, and the structural shape of the cross section of the movable cavity 3 of the transverse component are consistent and are all polygonal structures, and the structural dimensions of the cross section of the built-in moving disk 76, the structural dimensions of the cross section of the threaded moving disk 74, and the structural dimensions of the cross section of the movable cavity 3 of the transverse component match. The structural shape of the cross section of the limiting pull rod 711 and the structural shape of the cross section of the No. 2 transverse rod body through-hole 9 are consistent and are all polygonal structures, and the structural dimensions of the cross section of the limiting pull rod 711 and the structural dimensions of the cross section of the No. 2 transverse rod body through-hole 9 match.

[0019] In order to adjust the distance between the longitudinal grip bar 83 and the hook bar 712 so as to facilitate use by different staff, please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6, it is necessary to set up an adjustable grip mechanism 8, which is internally provided with a fixing ring 81 fixedly installed at the tail end of the horizontal hollow tube 1, a contact head 87 located directly below the fixing ring 81 and capable of contacting the bottom surface of the horizontal hollow tube 1, and a No. 2 coil spring 89 that generates upward elastic pressure on the contact head 87. Since the lengths of the index fingers or middle fingers of different staff members are different, it is necessary to adjust the distance between the longitudinal grip rod 83 and the hook rod 712, pull the longitudinal pull rod 88 downward, so that the contact head 87 is separated from the horizontal hollow tube 1, and then manually move the longitudinal grip rod 83 until the distance between the longitudinal grip rod 83 and the hook rod 712 meets the use requirements, so as to facilitate use by different staff members.

[0020] For the specific structure of the adjustable handle mechanism 8, please refer to Figure 5 and Figure 6 , including a longitudinal gripping rod 83 integrally provided at the bottom of the fixing ring 81, the center of the fixing ring 81 is provided with a ring hole 82 which is placed on the tail of the horizontal hollow tube 1 and can move axially along the horizontal hollow tube 1, the longitudinal gripping rod 83 is provided with a longitudinal moving cavity 84 near the interior of the fixing ring 81, the interior of the longitudinal gripping rod 83 is provided with a first longitudinal rod body through-hole 85 with an open bottom end and a top end connected to the bottom end of the longitudinal moving cavity 84, the top of the longitudinal gripping rod 83 is provided with a second longitudinal rod body through-hole 86 which is connected to the top end of the longitudinal moving cavity 84 and the bottom end of the ring hole 82, the longitudinal The gripping rod 83 is provided with a contact head 87 capable of axially moving along the longitudinal moving cavity 84 inside the longitudinal moving cavity 84, and the upper half of the contact head 87 passes through the No. 2 longitudinal rod body through-hole 86 and contacts the outer surface of the horizontal hollow tube 1, and the bottom end of the contact head 87 is fixedly installed with a longitudinal pull rod 88 passing through the No. 1 longitudinal rod body through-hole 85, and the interior of the longitudinal moving cavity 84 is provided with a No. 2 coil spring 89 that generates upward elastic pressure on the contact head 87, and the top end of the contact head 87 is provided with an arc-shaped concave surface consistent with the structural shape of the outer surface of the horizontal hollow tube 1.

[0021] When in use, pull the longitudinal pull rod 88 downward to make the contact head 87 disengage from the horizontal hollow tube 1, and then manually move the longitudinal grip rod 83 until the distance between the longitudinal grip rod 83 and the hook rod 712 meets the use requirements, and directional rotation of the rotating cap 71 will make the external threaded rod 73 directional rotation in the threaded moving disk 74. Due to the threaded connection, the threaded moving disk 74 will directional move horizontally, thereby changing the distance between the built-in moving disk 76 and the threaded moving disk 74, so as to change the elastic strength of the No. 1 coil spring 77 at this time, and this elastic strength is the clamping strength, thereby realizing the strength-adjustable clamping function. When performing bone clamping, the index finger or middle finger hooks the hook rod 712, and then the index finger or the middle finger will make the limit pull rod 711 drive the built-in movable plate 76 to move, thereby making the No. 1 clamping block 2 and the No. 2 clamping block 79 move away from each other. When the distance between the No. 1 clamping block 2 and the No. 2 clamping block 79 is sufficient to clamp the bone, the horizontal hollow tube 1 is manipulated to make the bone located between the No. 1 clamping block 2 and the No. 2 clamping block 79, and then the pulling force of the hook rod 712 is released. Under the elastic potential energy of the No. 1 coil spring 77, the built-in movable plate 76 and the axial movable rod 78 push the No. 2 clamping block 79 close to the No. 1 clamping block 2 until the bone is clamped between the No. 1 clamping block 2 and the No. 2 clamping block 79, and the clamping of the bone can be completed.

[0022] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A gun-shaped bone rongeur, comprising a horizontal hollow tube (1) with a No. 1 clamping block (2) fixedly mounted at one end, a transverse component movable cavity (3) arranged inside the horizontal hollow tube (1), a No. 1 transverse rod through-hole (4) arranged at one end of the transverse component movable cavity (3), an axis body mounting hole (6) arranged at the other end of the transverse component movable cavity (3), an upper limit slide (5) arranged at the upper half of the No. 1 transverse rod through-hole (4), a No. 2 transverse rod through-hole (9) arranged at the bottom of the horizontal hollow tube (1) and a lower limit slide (10) arranged at the bottom of the transverse component movable cavity (3), characterized in that: Also includes, An adjustable elastic clamping mechanism (7) is provided with a threaded movable disk (74) installed in the movable cavity (3) of the transverse component and capable of directionally moving, an external threaded rod (73) capable of changing the position state of the threaded movable disk (74) when rotating, a second clamping block (79) capable of cooperating with the first clamping block (2) to clamp the bone, a first coil spring (77) producing an elastic damping effect on the second clamping block (79) and the threaded movable disk (74), and a hook rod (712) located below the horizontal hollow tube (1) and capable of driving the second clamping block (79) to move.

2. The gun-shaped rongeur according to claim 1, characterized in that: The adjustable elastic clamping mechanism (7) includes a built-in movable disk (76) and a threaded movable disk (74) placed inside the movable cavity (3) of the transverse component and capable of axially moving along the movable cavity (3) of the transverse component, a No. 1 coil spring (77) is placed between the built-in movable disk (76) and the threaded movable disk (74), an internal threaded hole (75) is provided at the center of the threaded movable disk (74), an external threaded rod (73) is installed in the internal threaded hole (75) of the threaded movable disk (74) through a threaded structure, one end of the external threaded rod (73) is installed with a rotating cap (71) through a coupling (72), and a part of the cap body of the rotating cap (71) is installed in the inner part of the shaft body mounting hole (6) through a bearing. The bottom of the built-in movable plate (76) is fixedly installed with a longitudinal connecting shaft (710) that passes through the lower limit slot (10) and can slide horizontally along the lower limit slot (10), the bottom shaft of the longitudinal connecting shaft (710) is fixedly installed with a limit pull rod (711) that passes through the second horizontal rod body through hole (9), one end of the limit pull rod (711) is fixedly installed with a longitudinal hook rod (712), one end of the built-in movable plate (76) is fixedly installed with an axial movable rod (78) that can move horizontally along the inside of the first horizontal rod body through hole (4), and one end of the axial movable rod (78) is fixedly installed with a second clamping block (79) that passes through the upper limit slot (5) and can move horizontally along the upper limit slot (5).

3. The gun-shaped rongeur according to claim 2, characterized in that: The thread structure comprises an internal thread structure provided in the internal thread hole (75) and an external thread structure provided at the shaft of the external thread rod (73), and the internal thread structure matches the external thread structure.

4. The gun-shaped rongeur according to claim 3, characterized in that: The structural shape of the cross section of the built-in movable disk (76), the structural shape of the cross section of the threaded movable disk (74), and the structural shape of the cross section of the transverse component movable cavity (3) are consistent and all have polygonal structures, and the structural dimensions of the cross section of the built-in movable disk (76), the structural dimensions of the cross section of the threaded movable disk (74), and the structural dimensions of the cross section of the transverse component movable cavity (3) match.

5. The gun-shaped rongeur according to claim 4, characterized in that: The structural shape of the cross section of the limiting pull rod (711) and the structural shape of the cross section of the second transverse rod body through hole (9) are consistent and both are polygonal structures, and the structural dimensions of the cross section of the limiting pull rod (711) and the structural dimensions of the cross section of the second transverse rod body through hole (9) match.

6. The gun-shaped rongeur according to any one of claims 1 to 5, characterized in that: It also includes an adjustable grip mechanism (8), which is internally provided with a fixing ring (81) fixedly mounted on the tail of the horizontal hollow tube (1), a contact head (87) located directly below the fixing ring (81) and capable of contacting the bottom surface of the horizontal hollow tube (1), and a No. 2 coil spring (89) for generating an upward elastic pressure on the contact head (87).

7. The gun-shaped rongeur according to claim 6, characterized in that: The adjustable grip mechanism (8) includes a longitudinal grip rod (83) integrally arranged at the bottom of the fixing ring (81), a ring hole (82) is provided at the center of the fixing ring (81) and is placed on the tail of the horizontal hollow tube (1) and can move axially along the horizontal hollow tube (1), the longitudinal grip rod (83) is provided with a longitudinal moving cavity (84) near the interior of the fixing ring (81), the interior of the longitudinal grip rod (83) is provided with a longitudinal rod body through hole (85) with the bottom end in an open state and the top end connected to the bottom end of the longitudinal moving cavity (84), and the top end of the longitudinal grip rod (83) is provided with a longitudinal rod body through hole (85) connected to the top end of the longitudinal moving cavity (84). and a second longitudinal rod body through hole (86) at the bottom end of the annular hole (82), the longitudinal gripping rod (83) is provided with a contact head (87) capable of axially moving along the longitudinal moving cavity (84) inside the longitudinal moving cavity (84), and the upper half of the contact head (87) passes through the second longitudinal rod body through hole (86) and contacts the outer surface of the horizontal hollow tube (1), the bottom end of the contact head (87) is fixedly installed with a longitudinal pull rod (88) passing through the first longitudinal rod body through hole (85), and the interior of the longitudinal moving cavity (84) is provided with a second coil spring (89) for generating upward elastic pressure on the contact head (87).

8. The gun-shaped rongeur according to claim 7, characterized in that: The top end of the abutment head (87) is provided with an arc-shaped concave surface that is consistent with the outer surface structure of the horizontal hollow tube (1).

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