CN111053607A

CN111053607A - Handle mechanism and sliding hammer with same

Info

Publication number: CN111053607A
Application number: CN201911399195.0A
Authority: CN
Inventors: 毛联甲
Original assignee: Beijing AK Medical Co Ltd
Current assignee: Beijing AK Medical Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-24

Abstract

The invention provides a handle mechanism and a sliding hammer with the same, wherein the handle mechanism is used for being connected with a hammer head mechanism to cut bones, and comprises: the joint assembly is used for being connected with the hammer head mechanism; the transmission rod assembly is connected with the joint assembly; the handle assembly is movably arranged on the transmission rod assembly; the stopping component is arranged on the transmission rod component and/or the handle component so as to limit the handle component on the transmission rod component; the handle assembly is movably arranged relative to the transmission rod assembly, so that the handle assembly is fixed on the transmission rod assembly when the stopping assembly moves to the stopping position, or the handle assembly moves relative to the transmission rod assembly when the stopping assembly moves to the avoiding position. The handle mechanism solves the problem that the sliding hammer in the prior art is inconvenient to operate in an operation.

Description

Handle mechanism and sliding hammer with same

Technical Field

The invention relates to the technical field of medical instruments, in particular to a handle mechanism and a sliding hammer with the same.

Background

With the wide application and the continuous development of the artificial joint replacement, the requirements of doctors on the fluency of the joint replacement surgery process are higher and higher, so that the surgery time is shortened, the surgery risk is reduced, the rehabilitation of patients is accelerated, and the surgery experience is improved. The surgical tool for the artificial joint replacement is required to be advanced in design and simple and convenient to operate so as to ensure and improve the smoothness of the operation; the number of surgical tools for artificial joint replacement is also required to be reduced as much as possible so as to reduce the complicated instrument operation and instrument conversion in the surgical process; meanwhile, surgical instruments are required to be as light as possible, and the marks are clear, so that the labor intensity of doctors is reduced, and misoperation is reduced.

At present, in the artificial joint replacement operation, surgical tools such as a osteotome, a positioning needle, a tibial plateau winged knife, a knockout/pull device, a test mold and the like need to use different surgical instruments when the surgical instruments are installed and taken out. Wherein, the quick-connecting handle and the sliding hammer are two most commonly used surgical tools in the current surgery. The quick-connection handle is used for holding and installing instruments, the sliding hammer is used for striking tools to cut bones or take out surgical tools, but the two tools occupy the surgical time when being detached, installed, converted and used in the surgery, and the experience of the surgical fluency is reduced; and most of the two tools are heavy and complex to operate. Another common way is to design a fixed handle or a quick-connect handle on various surgical instruments and add a knock-back design. However, this will cause the whole set of surgical instruments to be very heavy, which increases the labor intensity of the surgery; meanwhile, the knocking-back action can not be aligned with the axis of the instrument, so that the shape of the osteotomy is deformed, and the fracture of the human bone can be caused in serious cases.

Disclosure of Invention

The invention mainly aims to provide a handle mechanism and a sliding hammer with the same, so as to solve the problem that the sliding hammer in the prior art is inconvenient to operate in an operation.

In order to achieve the above object, according to one aspect of the present invention, there is provided a handle mechanism for connecting with a hammer head mechanism to cut bone, the handle mechanism comprising: the joint assembly is used for being connected with the hammer head mechanism; the transmission rod assembly is connected with the joint assembly; the handle assembly is movably arranged on the transmission rod assembly; the stopping component is arranged on the transmission rod component and/or the handle component so as to limit the handle component on the transmission rod component; the handle assembly is movably arranged relative to the transmission rod assembly, so that the handle assembly is fixed on the transmission rod assembly when the stopping assembly moves to the stopping position, or the handle assembly moves relative to the transmission rod assembly when the stopping assembly moves to the avoiding position.

Further, the backstop subassembly sets up the one end of keeping away from the tup mechanism at the transfer line subassembly, and the backstop subassembly includes: the telescopic sleeve is arranged on the transmission rod assembly in a telescopic mode so as to move telescopically relative to the transmission rod assembly along the axial direction of the transmission rod assembly.

Further, the handle mechanism further comprises: and the locking assembly is connected with the transmission rod assembly and/or the stopping assembly so as to position the stopping assembly at the stopping position when the stopping assembly moves to the stopping position.

Furthermore, a first inserting hole is formed in the joint component, and the transmission rod component is inserted into the first inserting hole to be connected with the joint component.

Furthermore, a second inserting hole is formed in the joint component, so that the joint component is connected with the hammer head mechanism through the second inserting hole.

Further, the handle mechanism further comprises: and the positioning assembly is arranged on the joint assembly and is used for positioning the hammer head mechanism in the second plug hole.

Furthermore, the positioning component is movably arranged relative to the joint component and is provided with a positioning position and a plugging position; when the positioning assembly moves to the inserting position, the hammer head mechanism is connected with the joint assembly, and after the hammer head mechanism is connected with the joint assembly, the positioning assembly moves to the positioning position to lock the hammer head mechanism on the joint assembly.

According to another aspect of the present invention, there is provided a slide hammer, comprising a handle mechanism and a hammer head mechanism, wherein the handle mechanism is the above handle mechanism.

Furthermore, a second inserting hole is formed in the joint component, the hammer mechanism is provided with an inserting portion, and the hammer mechanism is inserted into the second inserting hole through the inserting portion to be connected with the handle mechanism.

Furthermore, the handle mechanism also comprises a positioning component, the joint component is provided with a positioning hole, the positioning component is movably arranged in the positioning hole, and the insertion part is provided with a positioning groove; wherein, the grafting portion is inserted and is established in the second spliced eye, and locating component and constant head tank are connected to lock the tup mechanism on joint Assembly.

The handle mechanism adopting the technical scheme of the invention is mainly used in medical operations and is conveniently connected with a hammer head mechanism to drill a bone, and comprises a handle assembly, wherein the handle assembly is sleeved on a transmission rod assembly to move along a transmission rod of the transmission rod assembly, one end of the transmission rod assembly is provided with a connector assembly for being connected with the hammer head mechanism, the other end of the transmission rod assembly is provided with a stopping assembly, and the stopping assembly has two positions: backstop position and dodge the position, when the backstop subassembly moves to the backstop position, fix handle components on the transfer line subassembly between backstop subassembly and the joint subassembly, when the backstop subassembly is located dodge the position, handle components can move on the axial direction of transfer line subassembly, it can remove and fix two states to have realized handle components, through being connected the handle mechanism and the tup mechanism of this application, it needs a fixed handle components to have solved among the prior art tup mechanism when drilling, when extracting, need connect another kind of movable handle components's problem, surgical tool has been solved, and the operation is convenient.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows an exploded schematic view of an embodiment of a handle mechanism according to the present invention;

FIG. 2 shows a schematic structural view of an embodiment of the handle mechanism of the present invention;

fig. 3 shows a structural sectional view of an embodiment of the slide hammer of the present invention.

Wherein the figures include the following reference numerals:

10. a hammer head mechanism; 11. a plug-in part; 111. positioning a groove; 20. a joint assembly; 21. a first plug hole; 22. a second plug hole; 23. positioning holes; 24. a spring; 30. a drive rod assembly; 40. a handle assembly; 50. a stop assembly; 60. a locking assembly; 70. and a positioning component.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The present invention provides a handle mechanism for connecting with a hammer head mechanism 10 for cutting bone, please refer to fig. 1 to 3, the handle mechanism comprises: the joint assembly 20, the joint assembly 20 is used for connecting with the hammer head mechanism 10; the transmission rod assembly 30, the transmission rod assembly 30 is connected with the joint assembly 20; a handle assembly 40, the handle assembly 40 being movably disposed on the drive link assembly 30; a stop assembly 50, the stop assembly 50 being disposed on the drive link assembly 30 and/or the handle assembly 40 to limit the handle assembly 40 to the drive link assembly 30; wherein the stop assembly 50 has a stop position and an escape position, the stop assembly 50 is movably disposed relative to the transmission rod assembly 30 to fix the handle assembly 40 to the transmission rod assembly 30 when the stop assembly 50 is moved to the stop position, or to move the handle assembly 40 relative to the transmission rod assembly 30 when the stop assembly 50 is moved to the escape position.

The handle mechanism is mainly used in medical operations and is conveniently connected with a hammer head mechanism to drill a hole in a bone, the handle mechanism comprises a handle component, the handle component is sleeved on a transmission rod component to move along a transmission rod of the transmission rod component, one end of the transmission rod component is provided with a connector component for being connected with the hammer head mechanism, the other end of the transmission rod component is provided with a stopping component, and the stopping component has two positions: backstop position and dodge the position, when the backstop subassembly moves to the backstop position, fix handle components on the transfer line subassembly between backstop subassembly and the joint subassembly, when the backstop subassembly is located dodge the position, handle components can move on the axial direction of transfer line subassembly, it can remove and fix two states to have realized handle components, through being connected the handle mechanism and the tup mechanism of this application, it needs a fixed handle components to have solved among the prior art tup mechanism when drilling, when extracting, need connect another kind of movable handle components's problem, surgical tool has been solved, and the operation is convenient.

A stop assembly 50 is disposed at an end of the transmission rod assembly 30 remote from the hammer head mechanism 10, the stop assembly 50 comprising: and a telescopic sleeve telescopically disposed on the driving rod assembly 30 to be telescopically moved relative to the driving rod assembly 30 in an axial direction of the driving rod assembly 30.

In this embodiment, the telescopic sleeve is sleeved at one end of the transmission rod assembly to be capable of moving in a telescopic manner relative to the transmission rod assembly, when the stopping assembly is located at the stopping position, the telescopic sleeve is in a retracted state, the telescopic sleeve is located on the transmission rod assembly at the moment, and when the stopping assembly is located at the avoiding position, the telescopic rod can stretch out and draw back to extend relative to the transmission rod assembly.

Preferably, the transmission rod assembly comprises a telescopic rod, when the stopping assembly is located at the stopping position, the telescopic rod is in a retracted state, and when the stopping assembly is located at the avoiding position, the telescopic rod can stretch.

The handle mechanism further includes: and a locking assembly 60, wherein the locking assembly 60 is connected with the transmission rod assembly 30 and/or the stopping assembly 50 so as to position the stopping assembly 50 at the stopping position when the stopping assembly 50 moves to the stopping position.

The handle mechanism in this embodiment further comprises a locking assembly 60, preferably, the locking assembly 60 is a locking pin, the locking pin is inserted on the stopping assembly and the transmission rod assembly to limit the movement of the telescopic sleeve, the locking pin is pulled out, and the telescopic sleeve can move relative to the transmission rod assembly.

Preferably, a slide slot is provided on the telescoping sleeve to allow the stop assembly to move along the slide slot to move between the stop position and the retracted position.

The joint component 20 is provided with a first inserting hole 21, and the transmission rod component 30 is inserted in the first inserting hole 21 to be connected with the joint component 20. The joint component 20 is provided with a second inserting hole 22, so that the joint component 20 is connected with the hammer head mechanism 10 through the second inserting hole 22.

In this embodiment, one end of the connector assembly is provided with a first inserting hole 21, the other end of the connector assembly is provided with a second inserting hole 22, the first inserting hole 21 is a polygonal hole, the transmission rod of the transmission rod assembly is a polygonal body, and the transmission rod is inserted into the first inserting hole 21 and then fixed in the first inserting hole through a pin.

The handle mechanism further includes: and the positioning assembly 70 is arranged on the joint assembly 20, and is used for positioning the hammer head mechanism 10 in the second plug hole 22. The positioning assembly 70 is movably arranged relative to the joint assembly 20, and the positioning assembly 70 is provided with a positioning position and a plugging position; when the positioning assembly 70 moves to the inserting position, the hammer head mechanism 10 is connected to the joint assembly 20, and after the hammer head mechanism 10 is connected to the joint assembly 20, the positioning assembly 70 moves to the positioning position to lock the hammer head mechanism 10 to the joint assembly 20.

The invention also provides a sliding hammer which comprises a handle mechanism and a hammer head mechanism, wherein the handle mechanism is the handle mechanism.

The joint component 20 is provided with a second inserting hole 22, the hammer head mechanism 10 is provided with an inserting part 11, and the hammer head mechanism 10 is inserted into the second inserting hole 22 through the inserting part 11 to be connected with the handle mechanism.

The handle mechanism further comprises a positioning component 70, a positioning hole 23 is formed in the joint component 20, the positioning component 70 is movably arranged in the positioning hole 23, and a positioning groove 111 is formed in the insertion part 11; wherein the inserting portion 11 is inserted into the second inserting hole 22, and the positioning assembly 70 is connected with the positioning groove 111 to lock the hammer head mechanism 10 on the joint assembly 20.

In this embodiment, the slide hammer is provided with a positioning hole 23 on the joint component, the positioning component 70 is movably arranged in the positioning hole 23, the positioning component 70 is provided with a horn-shaped through hole, the bottom of the positioning hole is provided with a mounting plate, the spring is arranged on the mounting plate in the positioning hole, the spring is further connected with the positioning component to push the positioning component, the through hole is at least partially communicated with the second insertion hole, the hammer mechanism enters the second insertion hole through the insertion part 11 and then only needs to move the insertion part at the moment to pass through the through hole, and the positioning component is pressed downwards so as to pass through the through hole until the positioning component is clamped in the positioning groove, the hammer mechanism is connected with the joint component in a retracting manner, and the.

Preferably, the first insertion hole is a polygonal hole, so that the joint assembly is rotated by rotating the transmission rod assembly.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

embodiments of the invention are described in detail below with reference to fig. 1-3, but the invention can be implemented in many different ways as defined and covered by the claims.

The fast-assembly interface insertion part of the hammer mechanism can be directly pushed into the second insertion hole of the fast-assembly joint component, the positioning component at the fast-assembly interface automatically slides downwards due to the taper angle design of the through hole in the pushing process, the spring 24 automatically pushes the positioning component at the fast-assembly interface to lock the hammer mechanism after the hammer mechanism is pushed to a preset position, and the fast-assembly installation is realized without other operations in the process. The interface of the quick connector assembly and the square transmission rod assembly are polyhedral interfaces, so that the module type sliding hammer handle has the function of rotating or rotating the hammer head mechanism.

The operator needs to rotate the slide hammer handle mode switching knob, namely the stop component, and select the module handle mode or the slide hammer mode. When the mode is selected, the surgical personnel rotate the position of the sliding hammer handle mode conversion stopping component to drive the locking component and the sliding hammer handle mode conversion locking or releasing the telescopic sleeve. The modular sliding hammer handle with the handle mode can operate the hammer head mechanism to swing, rotate, cut, chisel, knock, pull and other surgical operations. The modular sliding hammer handle with the sliding hammer mode is selected to take the hammer mechanism out of the operation position, an operator can tightly hold the handle assembly and quickly pull back the handle assembly to enable the handle assembly to impact the mode conversion lock catch of the sliding hammer handle, and therefore the knocking force is transmitted to the hammer mechanism through the pin, the square transmission rod assembly, the quick-connection joint assembly and the quick-connection lock catch and is knocked out of the operation position. The knocking-out process tool is concentric, so that the torque can be avoided, and the fracture of the human bone can be prevented.

The modular sliding hammer handle has the advantages that the diameters of the two ends of the modular sliding hammer handle are large, the diameter of the middle of the modular sliding hammer handle is small, the appearance design of the large arc handle is in accordance with the human engineering, the modular sliding hammer handle is comfortable to hold, and the hands are prevented from being injured during operation; the grooving of the handle is convenient for the tool to clean, and the design of the patterns increases the friction force of the handle and prevents the tool from sliding off.

The quick-connection positioning assembly is pressed, so that the hammer head mechanism and the module type sliding hammer handle can be quickly detached.

The technical scheme of the invention has the following beneficial effects:

firstly, the invention perfectly integrates the module handle and the sliding hammer into a whole to realize all functions of the two tools, thereby reducing the quantity of the whole set of operation tools and the weight of the operation tools; secondly, the invention of the switching structure of the handle mode and the sliding hammer mode can make the operation process smoother and reduce the replacement frequency of operation tools in the operation; thirdly, the quick mounting and dismounting structure simplifies the operation and reduces the operation time; finally, the ergonomic shape design of the present invention not only avoids medical personnel from being injured during surgery, but also improves the use experience of the tool. In a word, the artificial joint replacement, especially the primary artificial knee joint replacement, can make great progress and perfection, is favorable for improving the smoothness and the success rate of the operation, enables more patients to recover quickly after the operation, and is far away from the trouble of pain. The invention can also be used in orthopedic surgery with similar requirements.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A handle mechanism for connection with a hammer head mechanism (10) for cutting bone, the handle mechanism comprising:

a joint assembly (20), the joint assembly (20) being used for connecting with a hammer head mechanism (10);

a drive rod assembly (30), the drive rod assembly (30) being connected with the joint assembly (20);

a handle assembly (40), the handle assembly (40) being movably disposed on the drive rod assembly (30);

a stop assembly (50), the stop assembly (50) being disposed on the drive rod assembly (30) and/or the handle assembly (40) to restrain the handle assembly (40) on the drive rod assembly (30);

the stopping assembly (50) is provided with a stopping position and an avoiding position, and the stopping assembly (50) is movably arranged relative to the transmission rod assembly (30) so as to fix the handle assembly (40) on the transmission rod assembly (30) when the stopping assembly (50) moves to the stopping position or move the handle assembly (40) relative to the transmission rod assembly (30) when the stopping assembly (50) moves to the avoiding position.

2. The handle mechanism according to claim 1, wherein the stop assembly (50) is provided at an end of the drive rod assembly (30) remote from the hammer head mechanism (10), the stop assembly (50) comprising:

the telescopic sleeve is arranged on the transmission rod assembly (30) in a telescopic mode so as to move in a telescopic mode relative to the transmission rod assembly (30) along the axis direction of the transmission rod assembly (30).

3. The handle mechanism of claim 2, further comprising:

a locking assembly (60), the locking assembly (60) being connected with the drive rod assembly (30) and/or the stop assembly (50) to position the stop assembly (50) in the stop position when the stop assembly (50) is moved to the stop position.

4. The handle mechanism according to claim 1, wherein the joint assembly (20) is provided with a first insertion hole (21), and the transmission rod assembly (30) is inserted into the first insertion hole (21) to be connected with the joint assembly (20).

5. The handle mechanism according to claim 1, wherein a second insertion hole (22) is provided on the joint component (20) so that the joint component (20) is connected with the hammer head mechanism (10) through the second insertion hole (22).

6. The handle mechanism of claim 5, further comprising:

a positioning assembly (70), the positioning assembly (70) being arranged on the joint assembly (20) for positioning the hammer head mechanism (10) within the second insertion hole (22).

7. The handle mechanism according to claim 6, wherein the positioning assembly (70) is movably arranged relative to the joint assembly (20), the positioning assembly (70) having a positioning position and a plugging position;

when the positioning assembly (70) moves to the inserting position, the hammer head mechanism (10) is connected with the joint assembly (20), and after the hammer head mechanism (10) is connected with the joint assembly (20), the positioning assembly (70) moves to the positioning position to lock the hammer head mechanism (10) on the joint assembly (20).

8. A slide hammer comprising a handle mechanism and a hammer head mechanism, wherein the handle mechanism is as claimed in any one of claims 1 to 7.

9. The sliding hammer of claim 8, wherein a second insertion hole (22) is formed in the joint component (20), the hammer head mechanism (10) is provided with an insertion part (11), and the hammer head mechanism (10) is inserted into the second insertion hole (22) through the insertion part (11) to be connected with the handle mechanism.

10. The slide hammer of claim 9, wherein the handle mechanism further comprises a positioning assembly (70), the joint assembly (20) is provided with a positioning hole (23), the positioning assembly (70) is movably arranged in the positioning hole (23), and the insertion part (11) is provided with a positioning groove (111);

the inserting part (11) is inserted into the second inserting hole (22), and the positioning assembly (70) is connected with the positioning groove (111) so as to lock the hammer head mechanism (10) on the joint assembly (20).