A clamping handle and surgical tool

Abstract

The present invention discloses a clamping handle and a surgical tool, wherein a pressure head is provided at the distal end of the handle body; a connected telescopic rod and a driving assembly are provided in the handle body, and the driving assembly is used to drive the telescopic rod to reciprocate along the axial direction of the handle body; the distal end of the telescopic rod can extend out of the handle body and is used to clamp at least a part of the part to be clamped together with the pressure head. The surgical tool includes a part to be clamped and the above-mentioned clamping handle, wherein the part to be clamped is provided with a slot, and the distal end of the telescopic rod and the pressure head are used to extend into the slot to clamp the part to be clamped together. The present invention has the advantages of being able to quickly and accurately deliver the part to be clamped to a specified position, and being able to quickly release the part to be clamped after the part to be clamped is delivered to the specified position.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a clamping handle and a surgical tool. Background Art

[0002] Currently, in order to correctly implant the tibial plateau prosthesis into the human body during total knee replacement surgery, a groove with the same shape as the fixation column and keel at the distal end of the tibial plateau needs to be formed on the osteotomy surface of the proximal tibia. The current practice is to first remove some bone from the proximal tibia where the tibial plateau is to be installed, then install a guide sleeve on the osteotomy surface, and then drive the keel shaping file into the tibia through the sleeve. Figure 1 and Figure 2 As shown, the keel shaping file has a shape similar to the fixed column and keel at the distal end of the tibial plateau, and the keel has serrations at its position so as to be embedded in the interior of the tibia. In order to complete this operation, it is urgent to design a tool so as to clamp the keel shaping file and drive it into the interior of the tibia. Summary of the Invention

[0003] The object of the present invention is to provide a clamping handle and a surgical tool, which can facilitate the holding of a keel-forming bone rasp and the driving of the rasp into the interior of the tibia.

[0004] To achieve the above-mentioned object, the present invention provides a clamping handle, comprising a hollow handle body;

[0005] The distal end of the handle is provided with a pressure head;

[0006] The handle body is provided with a connected telescopic rod and a driving assembly, and the driving assembly is used to drive the telescopic rod to reciprocate along the axial direction of the handle body;

[0007] The distal end of the telescopic rod can extend out of the handle body and is used to clamp at least a portion of the component to be clamped together with the pressing head.

[0008] Optionally, the driving assembly includes a connected driving member and a transmission member, the telescopic rod is connected to the transmission member, and the driving member drives the telescopic rod to reciprocate along the axial direction of the handle body through the transmission member, and the driving member is electric or manual.

[0009] Optionally, the driving member is a motor, and the transmission member includes a gear and a transmission bar, the gear is connected to the output shaft of the motor, the transmission bar is provided with a rack along its axial direction for engaging with the gear, and one end of the transmission bar is connected to the telescopic rod.

[0010] Optionally, the distal end of the telescopic rod is a structure with a cross-section gradually decreasing toward the distal end.

[0011] Optionally, the pressure head has a clamping portion, which is used to contact at least a portion of the component to be clamped. The clamping portion is a wedge-shaped portion, an L-shaped portion or a hook-shaped portion, and the wedge-shaped portion has a cross-section that gradually increases toward the distal end.

[0012] Optionally, a flange is provided between the clamping portion of the pressing head and the handle body, and the flange is used to abut against at least a portion of the component to be clamped.

[0013] Optionally, the number of the pressing heads is one or more than two, and the distal end of the telescopic rod is used to squeeze the pressing head so that the clamping portion of the pressing head is pressed toward the component to be clamped.

[0014] Optionally, the handle body is provided with a weight-reducing groove and / or a heat dissipation hole.

[0015] Optionally, the proximal end of the handle body is provided with a boss perpendicular to the axial direction of the handle body.

[0016] To achieve the above-mentioned purpose, the present invention also provides a surgical tool, which includes a part to be clamped and the clamping handle described above. The part to be clamped is provided with a slot, and the distal end of the telescopic rod and the pressure head are used to extend into the slot to jointly clamp the part to be clamped.

[0017] Optionally, a first inclined surface is provided on the slot wall of the slot, a second inclined surface matching the first inclined surface is provided on the distal end of the telescopic rod, a third inclined surface is provided on the slot wall of the slot, and a fourth inclined surface matching the third inclined surface is provided on the pressure head.

[0018] Optionally, the component to be clamped is a keel forming file.

[0019] Compared with the prior art, the clamping handle and surgical tool provided by the present invention have the following advantages:

[0020] (1) The clamping handle provided by the present invention comprises a hollow handle body, wherein the distal end of the handle body is provided with a pressure head; a connected telescopic rod and a driving assembly are provided in the handle body, and the driving assembly is used to drive the telescopic rod to move back and forth along the axial direction of the handle body; the distal end of the telescopic rod can extend out of the handle body and be used to clamp at least a portion of the part to be clamped together with the pressure head. Thus, when it is necessary to clamp the part to be clamped, the driving assembly can drive the telescopic rod to move along the axial direction of the handle body toward the position where the part to be clamped is located, so that the distal end of the telescopic rod can extend out of the handle body and gradually approach the part to be clamped, thereby being able to clamp at least a portion of the part to be clamped together with the pressure head; when it is necessary to release the part to be clamped, the driving assembly can drive the telescopic rod to move along the axial direction of the handle body toward the position where the part to be clamped is located, so that the distal end of the telescopic rod is away from the part to be clamped, thereby quickly releasing the part to be clamped. When the component to be clamped is a keel shaping rasp, the clamping handle provided by the present invention can more conveniently hold the keel shaping rasp to drive it into the tibia, and can achieve quick connection with the keel shaping rasp. After the keel shaping rasp is driven into the tibia, the telescopic rod can be quickly withdrawn under the drive of the driving assembly, thereby quickly releasing the keel shaping rasp.

[0021] (2) The surgical tool provided by the present invention includes the clamping handle described above, and thus it also has all the advantages of the clamping handle described above, that is, by adopting the surgical tool provided by the present invention, the clamping handle can be quickly connected to the part to be clamped, so that the part to be clamped can be quickly and accurately sent to the specified position. After the part to be clamped is sent to the specified position, the clamping handle can be quickly separated from the part to be clamped, so that the part to be clamped can be quickly released. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the front view of the keel shaping file;

[0023] Figure 2 is a cross-sectional view of a keel shaping file;

[0024] Figure 3 1 is a schematic diagram of the overall structure of a clamping handle in one embodiment of the present invention;

[0025] Figure 4 Schematic diagram of a partial structure of a clamping handle in one embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the connection relationship between the driving member and the transmission member in one embodiment of the present invention;

[0027] Figure 6Schematic diagram of the working principle of the driving assembly of the clamping handle in one embodiment of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the clamping handle and the component to be clamped in one embodiment of the present invention;

[0029] Figure 8 This is a partial structural diagram of the clamping handle and the component to be clamped in one embodiment of the present invention;

[0030] Figure 9 The figure is a schematic structural diagram of the connection relationship between the telescopic rod and the pressing head in the clamping handle and the component to be clamped in one embodiment of the present invention.

[0031] The accompanying drawings are numerals as follows:

[0032] Handle 100; part to be clamped 200; telescopic rod 300; motor 410; gear 421; transmission bar 422; rack 423; pin 430; slot 210; first inclined surface 211; second inclined surface 310; pressure head 110; third inclined surface 212; fourth inclined surface 111; flange 113; weight-reducing groove 120; heat dissipation hole 130; through hole 140; switch button 500; sliding block 600; boss 150; power supply 700; controller 800; first shell 910; second shell 920. DETAILED DESCRIPTION

[0033] The following is combined with Figures 1 to 9 The clamping handle and surgical tool proposed in the present invention are further described in detail with reference to the following embodiments. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are in a very simplified form and are not in precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention, so they have no technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] Herein, “distal end” refers to the end away from the operator, that is, the end close to the part to be clamped, and “proximal end” refers to the end close to the operator, that is, the end away from the part to be clamped.

[0039] As described in the background, during total knee replacement surgery, in order to properly implant the tibial plateau prosthesis, a groove with the same shape as the fixation post and keel at the distal end of the tibial plateau needs to be formed on the osteotomized surface of the proximal tibia. The current practice is to first remove some bone from the proximal tibia where the tibial plateau is to be installed, then install a guide sleeve on the osteotomized surface, and then drive the keel shaping file through the sleeve into the interior of the tibia. Please refer to Figure 1 and Figure 2 ,in Figure 1 A schematic diagram of the front view of the keel forming file (part to be clamped 200) is given. Figure 2 A cross-sectional view of the keel forming file (part to be clamped 200) is schematically shown. Figure 1 and Figure 2 As shown, the keel shaping file has a shape similar to the fixed column and keel at the distal end of the tibial plateau, and the keel has serrations at its position so as to be embedded in the interior of the tibia. In order to complete this operation, it is urgent to design a tool so as to clamp the keel shaping file and drive it into the interior of the tibia.

[0040] The core concept of the present invention is to provide a clamping handle and surgical tool that facilitates gripping a keel-shaped bone rasp and inserting it into the tibia. It should be noted that while this embodiment uses the example of gripping a keel-shaped bone rasp to illustrate the present clamping handle and surgical tool, it is readily understood that the present clamping handle can be used to grip any component as long as it has a slot that matches it.

[0041] To realize the above idea, the present invention provides a clamping handle, please refer to Figure 3 and Figure 4 ,in Figure 3 The overall structural diagram of the clamping handle provided by one embodiment of the present invention is schematically shown. Figure 4 A partial structural diagram of a clamping handle provided in one embodiment of the present invention is schematically shown. Figure 3 and Figure 4 As shown, the clamping handle includes a hollow handle body 100; a pressure head 110 is provided at the distal end of the handle body 100; a connected telescopic rod 300 and a drive assembly are provided in the handle body 100, and the drive assembly is used to drive the telescopic rod 300 to reciprocate along the axial direction of the handle body 100; the distal end of the telescopic rod 300 can extend out of the handle body 100 and is used to clamp at least a portion of the component 200 to be clamped together with the pressure head 110. Please refer to Figure 7, which schematically shows a structural diagram of the clamping handle provided by one embodiment of the present invention when it cooperates with the component to be clamped 200, as shown in FIG. Figure 7 As shown, the component to be clamped 200 may be a keel shaping file. It should be noted that the component to be clamped 200 may also be other components besides a keel shaping file, and the present invention does not limit this.

[0042] The clamping handle provided by the present invention includes a hollow handle body 100, and a pressure head 110 is provided at the distal end of the handle body 100. A connected telescopic rod 300 and a drive assembly are provided inside the handle body 100. The telescopic rod 300 is arranged along the axial direction of the handle body 100, and the drive assembly is used to drive the telescopic rod 300 to reciprocate along the axial direction of the handle body 100. The distal end of the telescopic rod 300 can extend out of the handle body 100 and can clamp at least a portion of the component 200 to be clamped together with the pressure head 110. Thus, when it is necessary to clamp the part 200 to be clamped, the drive assembly can be used to drive the telescopic rod 300 to move along the axial direction of the handle body 100 toward the position of the part 200 to be clamped, so that the distal end of the telescopic rod 300 can extend out of the handle body 100 and gradually approach the part 200 to be clamped, thereby being able to clamp at least a part of the part 200 to be clamped together with the pressure head 110; when it is necessary to release the part 200 to be clamped, the drive assembly can be used to drive the telescopic rod 300 to move along the axial direction of the handle body 100 toward the direction away from the position of the part 200 to be clamped, so that the distal end of the telescopic rod 300 is away from the part 200 to be clamped, thereby quickly releasing the part 200 to be clamped. When the component 200 to be clamped is a keel shaping rasp, the clamping handle provided by the present invention can more conveniently hold the keel shaping rasp to drive it into the tibia, and can achieve a quick connection with the keel shaping rasp. After the keel shaping rasp is driven into the tibia, the telescopic rod 300 can be quickly withdrawn under the drive of the driving assembly, thereby quickly releasing the keel shaping rasp.

[0043] Preferably, please refer to Figure 3 ,like Figure 3 As shown, the proximal end of the handle body 100 is provided with a boss 150. The boss 150 protrudes radially outward relative to the handle body 100, i.e., the boss 150 is arranged perpendicular to the handle body 100. The outer diameter of the boss 150 is larger than that of the handle body 100, thereby facilitating the application of force to drive the component 200 to be clamped into a desired position. For example, if the component 200 to be clamped is a keel shaping rasp, the surgeon can use the clamping handle provided by the present invention to align the keel shaping rasp with the guide sleeve on the tibial osteotomy surface and then strike the boss 150 to drive the keel shaping rasp into the tibia.

[0044] Preferably, please refer to Figure 3 ,like Figure 3 As shown, the handle body 100 is provided with at least one weight-reducing groove 120. Thus, by providing at least one weight-reducing groove 120 on the handle body 100, the overall weight of the clamping handle provided by the present invention can be reduced, thereby making the clamping handle provided by the present invention more lightweight and easy to use. To further reduce the overall weight of the handle body 100, the handle body 100 can be provided with multiple weight-reducing grooves 120, and the multiple weight-reducing grooves 120 can be arranged at intervals along the circumference of the handle body 100.

[0045] Preferably, please refer to Figure 3 ,like Figure 3 As shown, the handle body 100 may be provided with at least one heat dissipation hole 130. Thus, by providing at least one heat dissipation hole 130 on the handle body 100, heat generated by the drive assembly during operation can be discharged through the heat dissipation hole 130, thereby improving the stability of the clamping handle provided by the present invention during operation and effectively extending the service life of the clamping handle. Furthermore, by providing at least one heat dissipation hole 130 on the handle body 100, the overall weight of the handle body 100 can be further reduced, making the clamping handle provided by the present invention more lightweight and easy to use.

[0046] Preferably, a switch button 500 is further provided in the handle body 100, one end of the switch button 500 is connected to the drive assembly, and the other end of the switch button 500 can extend outside the handle body 100. Specifically, a through hole 140 for the switch button 500 to pass through can be provided on the handle body 100. Thus, by providing a switch in the handle body 100, and one end of the switch button 500 is connected to the drive assembly, and the other end of the switch button 500 can extend outside the handle body 100, the operating state of the drive assembly can be controlled by pressing or pushing the switch button 500, so that the drive assembly can drive the telescopic rod 300 to reciprocate along the axial direction of the handle body 100.

[0047] Preferably, the switch button 500 is capable of reciprocating along the axial direction of the handle body 100. Since the switch button 500 is capable of reciprocating along the axial direction of the handle body 100, the operating state of the drive assembly can be controlled by pushing the switch button 500 along the axial direction of the handle body 100, thereby enabling the drive assembly to drive the telescopic rod 300 to reciprocate along the axial direction of the handle body 100.

[0048] In a preferred embodiment, the drive assembly includes a connected drive member and a transmission member, the telescopic rod 300 is connected to the transmission member, and the drive member drives the telescopic rod 300 to reciprocate along the axial direction of the handle body 100 through the transmission member. Because the drive assembly includes the connected drive member and the transmission member, and the telescopic rod 300 is connected to the transmission member, the telescopic rod 300 can be driven to reciprocate along the axial direction of the handle body 100 through the interaction between the drive member and the transmission member. When the telescopic rod 300 moves toward the component to be clamped 200, the distal end of the telescopic rod 300 can clamp at least a portion of the component to be clamped 200. When the telescopic rod 300 moves in a direction away from the component to be clamped 200, the distal end of the telescopic rod 300 can disengage from the component to be clamped 200, thereby releasing the component to be clamped 200.

[0049] For preference, please refer to Figure 5 , Figure 5 The following schematically shows the connection relationship between the driving member and the transmission member in the clamping handle provided in one embodiment of the present invention. Figure 5As shown, the driving member is a motor 410, and the transmission member includes a gear 421 and a transmission bar 422. The gear 421 is connected to the output shaft of the motor 410. The transmission bar 422 is provided with a rack 423 along its axial direction for meshing with the gear 421. One end of the transmission bar 422 is connected to the telescopic rod 300. The transmission bar 422 is arranged along the axial direction of the handle body 100. Thus, the motor 410 can drive the gear 421 to rotate. Because the transmission bar 422 is provided with a rack 423 along its axial direction for meshing with the gear 421, the meshing force of the gear 421 causes the rotating gear 421 to drive the transmission bar 422 to reciprocate along the axial direction of the handle body 100. Since the telescopic rod 300 is connected to the transmission bar 422, the telescopic rod 300 reciprocates along the axial direction of the handle body 100 along with the transmission bar 422. Assume that when the motor 410 rotates forward, the motor 410 can drive the telescopic rod 300 to move along the axial direction of the handle body 100 toward the direction close to the position of the part to be clamped 200, and the distal end of the telescopic rod 300 and the pressure head 110 can jointly clamp at least a part of the part to be clamped 200; then when the motor 410 rotates reversely, the motor 410 can drive the telescopic rod 300 to move along the axial direction of the handle body 100 toward the direction away from the position of the part to be clamped 200, and the distal end of the telescopic rod 300 can detach from the part to be clamped 200, thereby releasing the part to be clamped 200. Specifically, the forward and reverse rotation of the motor 410 can be controlled by pressing or pushing the switch button 500 along the axial direction of the handle body 100. For example, when the switch button 500 is capable of reciprocating along the axial direction of the handle body 100, if the switch button 500 is pushed in a direction close to the position of the part to be clamped 200, the motor 410 can rotate forward; and when the switch button 500 is pushed in a direction away from the position of the part to be clamped 200, the motor 410 can rotate reversely. The principle of how the switch button 500 controls the forward and reverse rotation of the motor 410 belongs to the prior art and will not be elaborated on in detail herein.

[0050] Preferably, please refer to Figure 6 , Figure 6 The following schematically shows a block diagram of the working principle of the driving assembly in the clamping handle provided in one embodiment of the present invention. Figure 6 As shown, in order to facilitate operation, a power supply 700 may be provided in the handle body 100. Thus, the power supply 700 provided in the handle body 100 can provide electric energy for the motor 410.

[0051] The handle body 100 is further provided with a controller 800, and the power supply 700, the motor 410, and the switch button 500 are all connected to the controller 800. Assume that, when the switch button 500 is pushed in a direction approaching the position of the part to be clamped 200, under the control of the controller 800, the circuit is connected in the forward direction, and the motor 410 rotates forward. When the distal end of the telescopic rod 300 and the pressure head 110 jointly clamp the part to be clamped 200, under the control of the controller 800, the circuit is disconnected, and the motor 410 stops rotating. When the switch button 500 is pushed in a direction away from the position of the part to be clamped 200, under the control of the controller 800, the circuit is connected in the reverse direction, and the motor 410 rotates in the reverse direction. When the distal end of the telescopic rod 300 is completely separated from the part to be clamped 200, thereby releasing the part to be clamped 200, under the control of the controller 800, the circuit is disconnected, and the motor 410 stops rotating. The controller 800 is a controller 800 in the prior art, for example, it can be a PLC controller. The principle of how the controller 800 controls the forward, reverse and stop rotation of the motor 410 belongs to the prior art, so this article will not elaborate on it in detail.

[0052] Preferably, the transmission bar 422 is connected to the telescopic rod 300 via a pin 430. Thus, by connecting the transmission bar 422 and the telescopic rod 300 via the pin 430, the overall structure of the clamping handle provided by the present invention can be further simplified, making the connection between the transmission bar 422 and the telescopic rod 300 more convenient, and also facilitating assembly of the clamping handle provided by the present invention. Specifically, the pin 430 and the telescopic rod 300 can be connected by welding.

[0053] If the switch button 500 is a sliding type, a sliding block 600 is preferably provided between the switch button 500 and the motor, and the switch button 500 slides on the sliding block 600. The sliding block 600 has a flat surface and low friction with the switch button 500, making it easier to push the switch button 500. If the switch is a push-type or other type, the sliding block 600 may not be provided.

[0054] In order to further improve the service life of the clamping handle provided by the present invention, the outer shell of the driving assembly is provided with a shell, and the shell is provided in the handle body 100. Therefore, by providing the shell outside the driving assembly, water vapor in the air can be prevented from entering the handle body 100 and affecting the normal use of the driving assembly. Specifically, Figure 4As shown, the shell includes a first shell 910 and a second shell 920 that are connected to each other, the driving member is arranged in the first shell 910, at least a portion of the transmission member is arranged in the first shell 910, and at least a portion thereof is arranged in the second shell 920. For example, when the driving member is a motor 410, and the transmission member includes a gear 421 and a transmission bar 422, the motor 410 and the gear 421 are installed in the first shell 910, at least a portion of the transmission bar 422 is installed in the first shell 910, and the remaining portion is installed in the second shell 920. When the transmission bar 422 is connected to the telescopic rod 300 through a pin 430, the pin 430 is also installed in the second shell 920, and the end of the telescopic rod 300 connected to the pin 430 can extend into the second shell 920 to be connected with the pin 430.

[0055] The above description uses an electric drive assembly as an example. Those skilled in the art will readily appreciate that a manual drive assembly can also be used. In one embodiment, the drive assembly comprises a cooperating guide rail and slider. The telescopic rod 300 is connected to the slider, which is in turn connected to the switch button 500. Sliding the switch button 500 controls the telescopic rod 300's forward or backward movement. Preferably, the drive assembly also includes a stopper, which is elastic or connected to an elastic member and abuts against the shaft of the telescopic rod 300 in its natural state. A protrusion is provided on the shaft of the telescopic rod 300. When the telescopic rod 300 is advanced to its full position, the stopper engages the protrusion, preventing it from retracting. To retract the telescopic rod 300, the stopper is compressed, and the switch button 500 is slid to retract the telescopic rod 300. This is only one example of a manual drive assembly. Other mechanisms known to those skilled in the art for controlling the extension and retraction of rods may be employed. However, for ease of operation, an electric drive assembly is preferred.

[0056] The following describes how the clamping handle and the part to be clamped 200 cooperate. Figure 2 、 8 and 9, where Figure 8 A schematic diagram of a partial structure of a clamping handle provided by one embodiment of the present invention when it cooperates with a component to be clamped 200 is shown schematically; Figure 9 The following schematically shows the connection relationship between the telescopic rod 300 and the pressure head 110 in the clamping handle provided by one embodiment of the present invention and the part to be clamped 200. Figure 2 、 8As shown in Figures 9 and 9, a slot 210 is provided at one end of the part to be clamped 200 for connecting to the telescopic rod 300 and the pressing head 110, and the distal end of the telescopic rod 300 and the pressing head 110 can be snapped into the slot 210. Under the action of the drive assembly, the distal end of the telescopic rod 300 can move toward the position of the part to be clamped 200 and can gradually snap into the slot 210 of the part to be clamped 200. When the distal end of the telescopic rod 300 is snapped into the slot 210, the distal end of the telescopic rod 300 and the pressing head 110 can jointly clamp the part to be clamped 200. It can be seen that this arrangement can simplify the overall structure of the telescopic rod 300, and further simplify the processing steps of the clamping handle provided by the present invention, thereby reducing the production cost of the clamping handle.

[0057] Preferably, the distal end of the telescopic rod 300 tapers toward the distal end, i.e., its cross-section gradually decreases toward the distal end, thereby reducing forward resistance and facilitating insertion of the distal end of the telescopic rod 300 into the slot 210. In a preferred embodiment, the slot 210 has a first inclined surface 211 formed on its walls, and the distal end of the telescopic rod 300 has a second inclined surface 310 that mates with the first inclined surface 211. When the distal end of the telescopic rod 300 is inserted into the slot 210, the second inclined surface 310 of the telescopic rod 300 mates with the first inclined surface 211 within the slot 210, exerting pressure on the slot 210 walls, thereby clamping the component 200 to be clamped and moving it into a designated position. After the component 200 to be clamped is brought to a designated position, the first inclined surface 211 and the second inclined surface 310 facilitate the distal end of the telescopic rod 300 to be withdrawn from the clamping slot 210 under the action of the drive assembly, thereby releasing the component 200 to be clamped. Thus, the coordinated first inclined surface 211 and the second inclined surface 310 facilitate quick connection and release of the component 200 to be clamped.

[0058] Preferably, the pressing head 110 is a rod-shaped object extending distally along the axial direction of the handle body 100, and the pressing head 110 can be snapped into the snap-in slot 210. Therefore, when the distal end of the telescopic rod 300 is extended out of the handle body 100 under the action of the drive assembly, the distal end of the telescopic rod 300 and the pressing head 110 can be snapped into the snap-in slot 210 together to clamp the component 200 to be clamped. This arrangement can improve the clamping effect of the clamping handle provided by the present invention on the component 200 to be clamped, making it easier to send the component 200 to be clamped to a specified position. During specific operation, the pressing head 110 can be first inserted into the slot 210 so that one side of the pressing head 110 fits against one side wall of the slot 210, and then the driving assembly drives the telescopic rod 300 to move along the axial direction of the handle body 100 toward the position of the part to be clamped 200 until the distal end of the telescopic rod 300 is inserted into the slot 210 so that one side of the distal end of the telescopic rod 300 fits against the other side wall of the slot 210. At this time, the distal end of the telescopic rod 300 and the pressing head 110 are both pressed against the wall of the slot 210, so that the part to be clamped 200 can be firmly fixed through the joint action of the distal end of the telescopic rod 300 and the pressing head 110.

[0059] Preferably, Figure 9 As shown, the distal end of the telescopic rod 300 can fit into the pressure head 110. Thus, when the distal end of the telescopic rod 300 and the pressure head 110 are jointly inserted into the slot 210, the pressure on the slot wall of the slot 210 can be increased, thereby further improving the clamping effect of the clamping handle provided by the present invention on the clamping component 200.

[0060] Preferably, the pressing head 110 has a clamping portion, which is used to contact at least a portion of the part to be clamped (such as the groove wall of the slot 210). The clamping portion is preferably a wedge-shaped portion, an L-shaped portion or a hook-shaped portion. At the same time, the side wall of the slot 210 is formed into a shape that can be hooked by the pressing head 110, which will help the clamping portion of the pressing head 110 to hook the groove wall of the slot 210 and prevent the pressing head 110 from falling out of the slot 210.

[0061] In a preferred embodiment, a third inclined surface 212 is provided on the wall of the slot 210, and a fourth inclined surface 111 is provided on the press head 110 to cooperate with the third inclined surface 212. The fourth inclined surface 111 makes the clamping portion of the press head 110 wedge-shaped, that is, a shape with a cross-section that gradually increases toward the distal end. When the press head 110 is inserted into the slot 210, the fourth inclined surface 111 on the press head 110 can fit with the third inclined surface 212 in the slot 210 to apply pressure to the slot wall of the slot 210. Moreover, since the press head 110 has a thicker shape at the end, once inserted, it hooks onto the slot wall and is difficult to disengage, thereby further achieving the clamping of the component 200 to be clamped, and better delivering the component 200 to be clamped to the designated position.

[0062] Preferably, a flange 113 is formed between the fourth inclined surface 111 and the handle 100. The flange 113 can abut against at least a portion of the component 200 to be clamped, thereby acting as a limiter to prevent the pressing head 110 from being further pressed into the clamping groove 210 and causing damage to the component 200 to be clamped. In this embodiment, the flange 113 abuts against the proximal end surface of the keel shaping file.

[0063] During use, the pressing head 110 is first inserted into the slot 210 of the component 200 to be clamped, so that the fourth inclined surface 111 of the pressing head 110 is in close contact with the third inclined surface 212 of the slot 210. Simultaneously, the flange 113 abuts the proximal surface of the component 200 to be clamped, preventing the pressing head 110 from being further pressed into the slot 210. Next, the switch button 500 is operated, and the drive assembly drives the distal end of the telescopic rod 300 into the slot 210. Due to the presence of the second inclined surface 310, the distal end of the telescopic rod 300 tapers, facilitating insertion into the slot 210. The telescopic rod 300 continues to extend forward until the second inclined surface 310 is in close contact with the first inclined surface 212 of the slot. Simultaneously, the telescopic rod 300 and the pressing head 110 are pressed against each other, preventing the telescopic rod 300 from advancing further. At this time, the telescopic rod 300 presses the pressing head 110 toward the side wall of the card slot 210, thereby hooking the third inclined surface 212 of the card slot through the fourth inclined surface 111, so that the pressing head 110 and the distal end of the telescopic rod 300 are integrally engaged with the component to be clamped 200 and cannot escape from the card slot 210.

[0064] To separate the clamping handle from the part 200 to be clamped, the switch button 500 is operated to retract the telescopic rod 300. Since the distal end of the telescopic rod 300 is thinner, it can be easily withdrawn from the slot 210. At this time, the pressing head 110 is no longer squeezed by the telescopic rod 300 and can be freely withdrawn from the slot 210, thus releasing the part 200 to be clamped.

[0065] The above is merely an example of the cooperation between the pressing head 110 and the telescopic rod 300. Those skilled in the art will readily appreciate that any structure in which the telescopic rod 300 can be used to press the clamping portion of the pressing head 110 against the sidewalls of the slot 210, allowing the pressing head 110 to hook onto the sidewalls of the slot 210 and prevent it from falling out of the slot 210, is suitable. For example, there may be two or more pressing heads 110. In one embodiment, two pressing heads 110 each hook onto two opposing sidewalls of the slot 210, and the telescopic rod 300 is inserted between the two pressing heads 110, simultaneously pressing the two pressing heads 110 against the two opposing sidewalls of the slot 210. In another embodiment, there may be four pressing heads 110 each hook onto four opposing sidewalls of the slot 210, and the telescopic rod 300 extends between the four pressing heads 110, simultaneously pressing the four pressing heads 110 against their respective facing sidewalls. The telescopic rod 300 may be in a shape that tapers gradually at the distal end, or may be in a columnar shape. The columnar shape may be a cylinder or a prism, as long as it can play the role of squeezing the pressure head 110 .

[0066] The present invention also provides a surgical tool, comprising a component to be clamped 200 and the clamping handle described above. The component to be clamped 200 is provided with a clamping slot 210. The distal end of the telescopic rod and the pressure head are configured to extend into the clamping slot 210 to jointly clamp the component to be clamped 200. In the surgical tool provided by the present invention, the clamping handle can be quickly connected to the component to be clamped 200, thereby enabling the component to be clamped 200 to be quickly and accurately delivered to a designated position. After the component to be clamped 200 is delivered to the designated position, the clamping handle can be quickly separated from the component to be clamped 200, thereby enabling the component to be clamped 200 to be quickly released. When the component 200 to be clamped is a keel shaping rasp, the surgical tool provided by the present invention can achieve a quick connection between the clamping handle and the keel shaping rasp, making it more convenient to hold the keel shaping rasp and drive it into the tibia. After the tibial osteotomy surface is prepared using the keel shaping rasp, the telescopic rod 300 can be quickly retracted under the drive of the driving assembly, thereby quickly releasing the keel shaping rasp.

[0067] In summary, compared with the prior art, the clamping handle and surgical tool provided by the present invention have the following advantages:

[0068] (1) The clamping handle provided by the present invention comprises a hollow handle body, wherein the distal end of the handle body is provided with a pressure head; a connected telescopic rod and a driving assembly are provided in the handle body, and the driving assembly is used to drive the telescopic rod to move back and forth along the axial direction of the handle body; the distal end of the telescopic rod can extend out of the handle body and be used to clamp at least a portion of the part to be clamped together with the pressure head. Thus, when it is necessary to clamp the part to be clamped, the driving assembly can drive the telescopic rod to move along the axial direction of the handle body toward the position where the part to be clamped is located, so that the distal end of the telescopic rod can extend out of the handle body and gradually approach the part to be clamped, thereby being able to clamp at least a portion of the part to be clamped together with the pressure head; when it is necessary to release the part to be clamped, the driving assembly can drive the telescopic rod to move along the axial direction of the handle body toward the position where the part to be clamped is located, so that the distal end of the telescopic rod is away from the part to be clamped, thereby quickly releasing the part to be clamped. When the component to be clamped is a keel shaping rasp, the clamping handle provided by the present invention can more conveniently hold the keel shaping rasp to drive it into the tibia, and can achieve quick connection with the keel shaping rasp. After the keel shaping rasp is driven into the tibia, the telescopic rod can be quickly withdrawn under the drive of the driving assembly, thereby quickly releasing the keel shaping rasp.

[0069] (2) The surgical tool provided by the present invention includes the clamping handle described above, and thus it also has all the advantages of the clamping handle described above, that is, by adopting the surgical tool provided by the present invention, the clamping handle can be quickly connected to the part to be clamped, so that the part to be clamped can be quickly and accurately sent to the specified position. After the part to be clamped is sent to the specified position, the clamping handle can be quickly separated from the part to be clamped, so that the part to be clamped can be quickly released.

[0070] The above description is merely a description of preferred embodiments of the present invention and does not limit the scope of the invention. Any changes or modifications made by persons skilled in the art based on the above disclosure are intended to be protected by the claims. Obviously, various modifications and variations may be made by persons skilled in the art without departing from the spirit and scope of the present invention. Thus, to the extent such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to encompass such modifications and variations.

Claims

1. A clamping handle, characterized in that: including a hollow handle body; The distal end of the handle is provided with a pressure head; The handle body is provided with a connected telescopic rod and a driving assembly, and the driving assembly is used to drive the telescopic rod to reciprocate along the axial direction of the handle body; The distal end of the telescopic rod can extend out of the handle body and is used to clamp at least a portion of the component to be clamped together with the pressing head; The pressure head has a clamping portion, and the clamping portion is used to contact at least a portion of the component to be clamped; The distal end of the telescopic rod is used to press the pressure head so that the clamping portion of the pressure head is pressed toward the component to be clamped, and the distal end of the telescopic rod is a structure with a cross section that gradually decreases toward the distal end; The part to be clamped is provided with a slot, a first inclined surface is provided on the slot wall of the slot, a second inclined surface matching with the first inclined surface is provided at the far end of the telescopic rod, a third inclined surface is provided on the slot wall of the slot, and a fourth inclined surface matching with the third inclined surface is provided on the pressure head.

2. The clamping handle according to claim 1, characterized in that: The driving assembly includes a connected driving member and a transmission member, the telescopic rod is connected to the transmission member, the driving member drives the telescopic rod to reciprocate along the axial direction of the handle body through the transmission member, and the driving member is electric or manual.

3. The clamping handle according to claim 2, characterized in that: The driving member is a motor, and the transmission member includes a gear and a transmission bar. The gear is connected to the output shaft of the motor, and the transmission bar is provided with a rack for meshing with the gear along its axial direction. One end of the transmission bar is connected to the telescopic rod.

4. The clamping handle according to claim 1, characterized in that: The clamping portion is a wedge-shaped portion or a hook-shaped portion, and the wedge-shaped portion is in a shape with a cross section gradually increasing toward the distal end.

5. The clamping handle according to claim 4, characterized in that: A flange is provided between the clamping portion of the pressure head and the handle body, and the flange is used to abut against at least a portion of the component to be clamped.

6. The clamping handle according to claim 1, characterized in that: The number of the pressure heads is one or more than two.

7. The clamping handle according to claim 1, characterized in that: The handle body is provided with a weight-reducing groove and / or a heat dissipation hole.

8. The clamping handle according to claim 1, characterized in that: A boss which is perpendicular to the axial direction of the handle body is provided at the proximal end of the handle body.

9. A surgical tool, characterized in that: It comprises a part to be clamped and a clamping handle according to any one of claims 1 to 8, wherein the part to be clamped is provided with a slot, and the distal end of the telescopic rod and the pressure head are used to extend into the slot to clamp the part to be clamped together.

10. The surgical tool according to claim 9, characterized in that: The part to be clamped is a keel forming file.

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