Electric vertebral plate gun-shaped rongeur

Abstract

The utility model relates to an electric vertebral plate gun-shaped rongeur which comprises a handle, a fixed clamp is integrally in a strip rod shape and installed on the handle, a movable clamp is arranged on the fixed clamp in a sliding mode, a cutting opening used for cutting bones is formed in the clamp head position of the fixed clamp and the clamp head position of the sliding clamp, and an electric driving mechanism is connected with the movable clamp. The electric driving mechanism is used for driving the movable clamp to slide on the fixed clamp and enabling the shearing opening to be in a smaller or larger state, the shearing opening is composed of the fixed clamp and the movable clamp, and when bone shearing is carried out, the electric driving mechanism is started to enable the movable clamp to slide on the fixed clamp; the electric driving mechanism enables the shearing opening to reset and release the sheared bone, the electric driving mechanism can solve the problem that when the bone is subjected to biting cutting, time and labor are wasted, it is guaranteed that the position of the bone needing to be cut is subjected to precise biting cutting, and the cutting efficiency of the bone is improved. Therefore, the smooth operation is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially a kind of electric lamina gun-like rongeur. BACKGROUND

[0002] Rongeur is also called lamina rongeur, applied in spinal surgery, rongeur is composed of head part and handle part, the head part of whole rongeur includes fixed forceps and movable forceps, handle part includes fixed handle and movable handle, movable handle is hingedly arranged on fixed handle, fixed handle is connected with fixed forceps as a whole, movable handle is connected with movable forceps, overall structure is similar to scissors, by manually operating movable handle, the head of movable forceps and the head of fixed forceps are close, the head of movable forceps and the head of fixed forceps are arranged shear blade, so as to realize the bone part needing to be removed to be cut, however, in actual clinical operation process, bone is hard, must hold tightly handle, it is laborious and time-consuming to use, and it is easy to cause the tremor of head, cannot be accurately cut off stably, ensure the smooth operation of operation. SUMMARY

[0003] The utility model aims at providing a kind of electric lamina gun-like rongeur, to solve the problem of operation time-consuming and laborious when cutting bone in the above technical problem, to ensure the accurate cutting of bone position needing to be cut, ensure the smooth operation of operation.

[0004] The technical problems in the utility model are solved by the following technical solutions:

[0005] Electric lamina gun-like rongeur, comprising:

[0006] Handlebar;

[0007] Fixed forceps, overall bar-shaped and installed on the handlebar;

[0008] Movable forceps, slidingly arranged on the fixed forceps, and sliding direction is along the length direction of the fixed forceps;

[0009] The head of the fixed forceps and the movable forceps is provided with shear cut for implementing shearing bone;

[0010] Electric drive mechanism, connected with the movable forceps, the electric drive mechanism is used to drive the movable forceps to slide on the fixed forceps and make the shear cut present smaller or larger state, to implement shearing bone.

[0011] The utility model also has the following technical features:

[0012] In an embodiment of the utility model, the handlebar is provided with start switch, and the start switch is used to implement the start or close of the electric drive mechanism.

[0013] In an embodiment of the utility model, the fixed forceps is provided with a sliding track, the sliding track is arranged along the length direction of the fixed forceps, the movable forceps is in the form of a strip and is provided with a sliding block along the length direction, and the sliding block is slidably arranged on the sliding track.

[0014] In an embodiment of the utility model, the electric driving mechanism comprises a driving deflection block, the driving deflection block is connected with the output shaft of the driving motor, the driving motor drives the driving deflection block to rotate, one end of the movable forceps is provided with a connecting rod, one end of the connecting rod is connected with the driving deflection block, and the driving deflection block rotates and drives the movable forceps to slide on the fixed forceps through the connecting rod.

[0015] In an embodiment of the utility model, one end of the connecting rod is hinged with one end of the movable forceps, a strip-shaped opening is arranged on the driving deflection block, the other end of the connecting rod is provided with a connecting roller, and the connecting roller is clamped in the strip-shaped opening.

[0016] In an embodiment of the utility model, the driving deflection block is in the form of a sector, the driving motor is connected with the center of the driving deflection block, and the strip-shaped opening is arranged along the radial direction of the driving deflection block.

[0017] In an embodiment of the utility model, the center of the driving deflection block is rotatably arranged on the handle, the center of the driving deflection block is coaxially connected with a transition gear, the transition gear is connected with a driving gear, and the output shaft of the driving motor is connected with the driving gear.

[0018] In an embodiment of the utility model, a reset tension spring is arranged on the driving deflection block, one end of the reset tension spring is fixed on the handle and is assembled to make the cutting opening present an enlarged state.

[0019] In an embodiment of the utility model, the handle comprises at least two unit box covers, the two unit box covers are buckled together and are fixed as a whole through buckles or connecting bolts, and the mounting chamber is formed by the two unit boxes.

[0020] In an embodiment of the utility model, a holding part is arranged on the handle, the starting switch is arranged on the holding part, and a limiting part is further arranged on the handle.

[0021] Compared with the prior art, the electrically-driven laminectomy gun-shaped rongeur has the beneficial effects that: the shearing opening for shearing the bone is composed of the fixed jaw and the movable jaw, when shearing the bone, the movable jaw is slid on the fixed jaw by starting the electrically-driven mechanism, and then the shearing opening is in a smaller state, so that the bone is sheared, after the shearing is completed, the electrically-driven mechanism resets the shearing opening, and releases the sheared bone, therefore, the electrically-driven mechanism can solve the problem of time-consuming and laborious operation when the bone is sheared, and ensures that the bone position to be removed is accurately sheared, so that the operation is smoothly performed. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 and Figure 2 are respectively two kinds of perspective view of the electrically-driven laminectomy gun-shaped rongeur in an embodiment of the utility model;

[0023] Figure 3 is the front view of the electrically-driven laminectomy gun-shaped rongeur in an embodiment of the utility model;

[0024] Figure 4 is the cross-sectional view of the electrically-driven laminectomy gun-shaped rongeur in an embodiment of the utility model. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are explained in detail by specific examples below, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied by other different specific embodiments, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model.

[0026] It should be noted that the diagrams provided in the embodiment only illustrate the basic concept of the utility model in a schematic manner, and only the components related to the utility model are shown in the diagrams, not the number, shape and size of the components in actual implementation, the shape, number and proportion of each component in actual implementation can be randomly changed, and the component layout pattern can be more complex.

[0027] It should be noted that in actual clinical operation, the existing rongeur is similar to scissors, which is operated by manually operating the handle to realize shearing of the bone, so as to realize the cutting of the bone part to be removed. However, in actual clinical operation, the bone is hard, and the handle must be gripped tightly, which is laborious and time-consuming, and can easily cause the pliers to shake, so that the cutting cannot be accurately and stably performed, and the smooth operation of the operation is ensured. To this end, the utility model provides an electric laminectomy gun-shaped rongeur, comprising: a handle 10; a fixed pliers 20, which is in the form of a bar and is installed on the handle 10; a movable pliers 30, which is slidingly arranged on the fixed pliers 20 and slides along the length direction of the fixed pliers 20; the pliers head position of the fixed pliers 20 and the movable pliers 30 is provided with a shearing opening a for shearing the bone; an electric drive mechanism connected with the movable pliers 30, the electric drive mechanism is used for driving the movable pliers 30 to slide on the fixed pliers 20 and making the shearing opening a present a smaller or larger state, so as to shear the bone.

[0028] In an embodiment, when shearing operation is performed on the bone position, the medical staff holds the handle 10, so that the bar-shaped fixed pliers 20 extends into the bone position to be cut, the electric drive mechanism is started, the movable pliers 30 slides on the fixed pliers 20, and then the one end of the movable pliers 30 approaches the one end of the fixed pliers 20, so that the shearing opening a presents a smaller state, and then the shearing operation is performed on the bone. After the bone is sheared off, the fixed pliers 20 and the movable pliers 30 are led out from the operation position, the electric drive mechanism is reset, so that the shearing opening a becomes larger, and the sheared bone is taken out to avoid falling.

[0029] In an embodiment, the end position of the fixed pliers 20 is provided with a cutting boss, the cutting boss is provided with a cutting edge, and the one end of the movable pliers 30 is also provided with a cutting edge, which approaches or moves away to implement the cutting of the bone.

[0030] In an embodiment, the fixed pliers 20 and the movable pliers 30 can be made of medical stainless steel or titanium alloy material, which is convenient for disinfection and avoids deformation.

[0031] In an embodiment, the handle 10 can be made of engineering plastic, which has high strength and light weight, and is convenient for medical staff to operate.

[0032] In an embodiment, in order to facilitate the medical staff to operate and start or stop the electric drive mechanism, the handle 10 is provided with a start switch 11, which is used to start or close the electric drive mechanism.

[0033] The starting switch 11 can be a press key to start the electric drive mechanism, or a pressure capacitor starting switch to start the electric drive mechanism by pressing.

[0034] In an embodiment, the fixed jaw 20 is provided with a sliding track 21 arranged along the length direction of the fixed jaw 20, and the movable jaw 30 is in the form of a strip and is provided with a sliding block 32 arranged along the length direction, which is slidingly arranged on the sliding track 21.

[0035] In an embodiment, to drive the movable jaw 30 to slide on the fixed jaw 20, the electric drive mechanism comprises a driving deflection block 41 connected with the output shaft of a driving motor 42, the driving motor 42 drives the driving deflection block 41 to rotate, one end of the movable jaw 30 is provided with a connecting rod 31, one end of the connecting rod 31 is connected with the driving deflection block 41, the driving deflection block 41 rotates and drives the movable jaw 30 to slide on the fixed jaw 20 through the connecting rod 31.

[0036] In an embodiment, during the starting of the driving motor 42, the driving deflection block 41 is deflected to drive the connecting rod 31, thereby driving the movable jaw 30 to slide on the fixed jaw 20 to realize the size reduction or increase of the shearing opening a.

[0037] More specifically, one end of the connecting rod 31 is hinged with one end of the movable jaw 30, the driving deflection block 41 is provided with a strip-shaped opening 411, and the other end of the connecting rod 31 is provided with a driving roller 311 clamped in the strip-shaped opening 411.

[0038] In an embodiment, during the deflection of the driving deflection block 41, one end of the connecting rod 31 can drive the roller 311 to be located in the strip-shaped opening 411, thereby driving the movable jaw 30 to slide on the fixed jaw 20 to realize the size reduction or increase of the shearing opening a.

[0039] Specifically, the driving deflection block 41 is in the form of a fan, the driving motor 42 is connected with the center of the driving deflection block 41, and the strip-shaped opening 411 is arranged along the radial direction of the driving deflection block 41.

[0040] In an embodiment, to drive the rotation of the driving deflection block 41, the center of the driving deflection block 41 is rotatably installed on the handle 10, the center of the driving deflection block 41 is coaxially connected with a transition gear 413, the transition gear 413 is connected with a driving gear 412, and the output shaft of the driving motor 42 is connected with the driving gear 412.

[0041] The stable driving of the movable pliers 30 can be realized by adjusting the gear ratio of the driving gear 412 and the transition gear 413, and the driving motor 42 is a small high-torque motor to ensure reliable cutting of the bone.

[0042] In an embodiment, to ensure that the movable pliers 30 are located on the fixed pliers 20 in a normal state, the shearing gap a is in an enlarged state, and a reset tension spring 43 is arranged on the driving deflection block 41, one end of the reset tension spring 43 is fixed on the handle 10 and is assembled to enable the shearing gap a to be in an enlarged state.

[0043] In an embodiment, when the driving motor 42 is powered off, the shearing gap a is in an enlarged state under the reset force of the reset tension spring 43.

[0044] In a specific embodiment, the handle 10 includes at least two unit box covers which are buckled together and fixed as a whole by buckles or connecting bolts, and the mounting chamber is formed between the two unit boxes.

[0045] In a specific embodiment, the handle 10 is provided with a holding part, the starting switch 11 is arranged on the holding part, and the handle 10 is further provided with a limiting part 12.

[0046] In an embodiment, the battery for supplying power to the driving motor 42 can be a lithium battery or a disposable battery, which is installed in the handle 10, and the handle 10 is provided with a cover which can be conveniently removed to facilitate the replacement of the battery.

[0047] In a specific embodiment, the torque for driving the driving motor 42 can be adjusted to adapt to different bone types for cutting operation, and a torque adjustment screw is arranged on the handle 10 to select the corresponding torque according to different bone types.

[0048] In an embodiment, the handle 10 is in a pistol grip configuration, and the limiting part 12 is a protruding part protruding from the back of the handle 10, and the toe position of the medical staff can be limited by the limiting part 12 to ensure reliable holding of the medical staff.

[0049] In an embodiment, the starting switch 11 is arranged on the holding part for convenient operation, and the medical staff can realize the start and stop of the electric driving mechanism by pressing the starting switch 11 with the index finger, which is more convenient to operate.

[0050] In summary, the shearing device for shearing the bone comprises two parts of the fixed jaw 20 and the movable jaw 30, when shearing the bone, the movable jaw 30 is slid on the fixed jaw 20 by starting the electric driving mechanism, and then the shearing gap a is in the state of being reduced to shear the bone, after the bone is sheared, the electric driving mechanism resets the shearing gap a to release the sheared bone, therefore, the electric driving mechanism can solve the problem of time-consuming and laborious operation when shearing the bone, ensure the accurate shearing of the bone position to be removed, and ensure the smooth operation of the surgery.

[0051] It is apparent for a person skilled in the art that the present application is not limited to the details of the above exemplary embodiments but can be implemented in other embodiments without departing from the spirit or essential characteristics of the application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and it is intended to encompass all changes and modifications of the application that fall within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0052] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment necessarily includes a separate independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A powered laminectomy rongeur, comprising: The utility model provides a bone shearing device, which comprises: a handle (10); a fixed jaw (20) in the shape of a bar and mounted on the handle (10); a movable jaw (30) slidingly arranged on the fixed jaw (20) and sliding along the length direction of the fixed jaw (20); a shearing slot (a) arranged at the position of the jaw head of the fixed jaw (20) and the movable jaw (30) for shearing a bone; an electric driving mechanism connected with the movable jaw (30) for driving the movable jaw (30) to slide on the fixed jaw (20) and making the shearing slot (a) present a state of being reduced or increased to shear the bone.

2. The motorized laminectomy rongeur according to claim 1, wherein, A start switch (11) is arranged on the handle (10) for starting or stopping the electric driving mechanism.

3. The motorized laminectomy rongeur according to claim 1, wherein, The fixed jaw (20) is provided with a sliding track (21) arranged along the length direction of the fixed jaw (20), and the movable jaw (30) is in the shape of a bar and provided with a sliding block (32) arranged along the length direction, which is slidingly arranged on the sliding track (21).

4. The motorized laminectomy rongeur according to claim 3, wherein, The electric driving mechanism comprises a driving deflection block (41) connected with the output shaft of a driving motor (42), the driving motor (42) drives the driving deflection block (41) to rotate, one end of the movable jaw (30) is provided with a connecting rod (31), one end of the connecting rod (31) is connected with the driving deflection block (41), the driving deflection block (41) rotates and drives the movable jaw (30) to slide on the fixed jaw (20) through the connecting rod (31).

5. The motorized laminectomy rongeur according to claim 4, wherein, One end of the connecting rod (31) is hinged with one end of the movable jaw (30), the driving deflection block (41) is provided with a strip-shaped opening (411), the other end of the connecting rod (31) is provided with a connecting roller (311) clamped in the strip-shaped opening (411).

6. The motorized laminectomy rongeur according to claim 5, wherein, The driving deflection block (41) is in the shape of a sector, the driving motor (42) is connected with the center of the driving deflection block (41), and the strip-shaped opening (411) is arranged along the radial direction of the driving deflection block (41).

7. The motorized laminectomy rongeur according to claim 6, wherein, The center of the driving deflection block (41) is rotatably mounted on the handle (10), the center of the driving deflection block (41) is coaxially connected with a transition gear (413), the transition gear (413) is connected with a driving gear (412), and the output shaft of the driving motor (42) is connected with the driving gear (412).

8. The motorized laminectomy rongeur according to claim 7, wherein, The driving deflection block (41) is provided with a reset tension spring (43), one end of the reset tension spring (43) is fixed on the handle (10) and is assembled to make the shearing slot present an increased state.

9. The motorized laminectomy rongeur according to claim 2, wherein, The handle (10) comprises at least two unit box covers which are fastened together and integrated by buckles or connecting bolts, and an installation cavity is formed between the two unit boxes.

10. The motorized laminectomy rongeur according to claim 2, wherein, The handle (10) is provided with a holding part, the starting switch (11) is arranged on the holding part, and the handle (10) is further provided with a limiting part (12).

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