CN214104493U - A distraction device for in total knee joint replacement art - Google Patents

Abstract

The utility model discloses a belong to medical instrument technical field, specifically be a distraction device for in total knee joint replacement art, it includes: shell, breather pipe, tighten up the spring, prop up open plate and connecting rod, display screen and control panel are installed to the outside front wall of shell, the battery is installed to the inside bottom of shell, the air pump is installed on the inside top of shell, the output tube of air pump runs through the shell and is connected with the breather pipe, the gasbag is installed to the outer wall of breather pipe, just the breather pipe is connected with the gasbag, four are tightened up the spring, four are installed altogether to the top and the bottom both sides of breather pipe two are propped up open plate to the one end of tightening up the spring is installed altogether. This a distraction device for in total knee joint replacement art not only conveniently takes up the device, and the operation of being convenient for can the perception moreover strut the pressure that the joint received, and convenient accurate control prevents to cause the injury to the disease.

Description

A distraction device for in total knee joint replacement art

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a distraction device used in total knee joint replacement.

Background

At present, the artificial total knee replacement has become one of the surgical treatment modes of diseases such as late degenerative osteoarthritis, rheumatoid arthritis, ankylosing spondylitis and the like, meanwhile, in the preoperative preparation stage, X-ray irradiation is generally carried out to determine the situation and the position of a problem in the knee joint, but the supporting and separating distance of the femur side and the tibia side is difficult to accurately determine and position in the operation process, and the deviation amount of the position in the operation exceeding 10% means that the operation is seriously failed and serious consequences are generated.

Therefore, the fine control of the separation distance between the femur side and the tibia side in the total knee replacement becomes a great importance, and the distraction distance must be finely controlled to improve the accuracy of the operation. However, the existing distraction device is inconvenient to take up and operate, cannot sense the pressure applied to the joint during distraction, cannot be accurately controlled, and is easy to damage the patient.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems occurring in the conventional distractors.

Therefore, the utility model aims at providing a distraction device for in total knee replacement art not only conveniently takes up the device, the operation of being convenient for, the pressure that the joint received when moreover can the perception struts, and convenient accurate control prevents to cause the injury to the disease.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a distraction device for use in total knee arthroplasty, comprising: shell, breather pipe, tighten up the spring, prop open board and connecting rod, display screen and control panel are installed to the outside front wall of shell, the battery is installed to the inside bottom of shell, the air pump is installed on the inside top of shell, the output tube of air pump runs through the shell and is connected with the breather pipe, the gasbag is installed to the outer wall of breather pipe, just the breather pipe is connected with the gasbag, four are installed altogether to the top and the bottom both sides of breather pipe and are tightened up the spring, four tighten up the one end of spring and install two and prop open the board altogether, prop open a lateral wall of board and install piezoelectric sensor, two prop open the front wall of board and all install the connecting rod, two the equal swing joint in one end of connecting rod has the shadoof, two the stopper is all installed to the one end of connecting rod.

As a preferred embodiment of the distractor device for total knee arthroplasty of the present invention, wherein: the handle is installed to the outside bottom of shell, the antiskid groove has all been seted up to the both sides of handle.

As a preferred embodiment of the distractor device for total knee arthroplasty of the present invention, wherein: the bottom of battery installs the connecting piece, the connecting piece is the USB connector.

As a preferred embodiment of the distractor device for total knee arthroplasty of the present invention, wherein: six heat dissipation holes are formed in two side walls of the inner portion of the shell, and dust screens are installed in the six heat dissipation holes.

As a preferred embodiment of the distractor device for total knee arthroplasty of the present invention, wherein: the outside of the lifting rod is provided with an anti-slip sleeve which is made of rubber materials.

Compared with the prior art: through taking up the lifting rod, mention the front end of device, and place two expansion plates in the middle of the joint, send control command to the air pump through control panel, the air pump is opened and is carried gas in the gasbag through the breather pipe, drive the expansion plate through the gasbag rises and remove, make and tighten up the spring extension, and the connecting rod slides along the lifting rod, make expansion plate rectilinear movement, and pressure when contacting through piezoelectric sensor perception joint and expansion plate, in time control air pump closes, the accurate control of being convenient for, this a distraction device for in the total knee joint replacement art, not only conveniently take up the device, the operation of being convenient for, and the pressure that the joint received when can the perception struts, make things convenient for accurate control, prevent to cause the injury to the disease.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a front view of the present invention;

fig. 2 is a cross-sectional view of the housing of the present invention;

fig. 3 is a cross-sectional view of the lifting rod of the present invention.

In the figure: 100 shells, 110 display screens, 120 control panels, 130 storage batteries, 131 connecting pieces, 140 air pumps, 150 grips, 151 anti-skidding grooves, 160 heat dissipation holes, 161 dust screens, 200 air pipes, 210 air bags, 300 tightening springs, 400 expanding plates, 410 piezoelectric sensors, 500 connecting rods, 510 lifting rods, 511 anti-skidding sleeves and 520 limiting blocks.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a distraction device for in total knee replacement art not only conveniently takes up the device, the operation of being convenient for, the pressure that the joint received when moreover can the perception struts, and convenient accurate control prevents to cause the injury to the disease, please refer to and draw in fig. 1, fig. 2 and fig. 3, include: the housing 100, the breather pipe 200, the tightening spring 300, the opening plate 400, and the connection rod 500;

referring to fig. 1, 2 and 3 again, the display screen 110 and the control panel 120 are installed on the front wall of the exterior of the housing 100, the storage battery 130 is installed at the bottom end of the interior of the housing 100, the air pump 140 is installed at the top end of the interior of the housing 100, the output pipe of the air pump 140 penetrates through the housing 100 and is connected with the air pipe 200, the air bag 210 is installed on the outer wall of the air pipe 200, the air pipe 200 is connected with the air bag 210, four tightening springs 300 are installed on two sides of the top end and the bottom end of the air pipe 200, two expanding plates 400 are installed on one end of the four tightening springs 300, the piezoelectric sensor 410 is installed on one side wall of each expanding plate 400, the connecting rods 500 are installed on the front walls of the two expanding plates 400, the lifting rods 510 are movably connected to one end of each connecting rod 500, and the limiting blocks 520 are installed on one end of each connecting rod 500, specifically, the display screen 110 and the control panel 120 are connected to the front wall of the outer shell 100 through bolt threads, the storage battery 130 is connected to the bottom end of the outer shell 100 through bolt threads, the air pump 140 is connected to the top end of the outer shell 100 through bolt threads, the output pipe of the air pump 140 penetrates through the outer shell 100 and is connected with the vent pipe 200, the air bag 210 is sleeved on the outer wall of the vent pipe 200, the vent pipe 200 is connected with the air bag 210, four tightening springs 300 are welded to the top end and the bottom end of the vent pipe 200, two opening plates 400 are welded to one end of the four tightening springs 300, a piezoelectric sensor 410 is embedded and connected to one side wall of each opening plate 400, two connecting rods 500 are welded to the front wall of each opening plate 400, one ends of the two connecting rods 500 are slidably connected with lifting rods 510, and a limit block 520 is welded to one end of each connecting rod 500, the shell 100 is used for accommodating and protecting internal devices, the display screen 110 is used for displaying the working conditions of the devices, the control panel 120 is used for sending a control command to the controller, the storage battery 130 is used for storing electric power, the air pump 140 is used for providing an inflation function, the air pipe 200 is used for fixing the air bag 210 and is connected with the air pump 140 and the air bag 210, the air bag 210 is used for providing a stretching function and stretching two stretching plates 400, the tightening spring 300 is used for driving the stretching plates 400 to return to the original position, the stretching plates 400 are used for providing a joint stretching function, the piezoelectric sensor 410 is used for sensing the pressure applied when the stretching plates 400 are contacted with the body, the connecting rod 500 is used for connecting the lifting rod 510 and the stretching plates 400, the lifting rod 510 is used for conveniently lifting the devices and enabling the connecting rod 500 to slide in the lifting rod 510, and the limiting block 520 is used for preventing the connecting rod 500 from being separated from the lifting rod 510;

when the concrete use, through taking up lifting lever 510, lift the front end of device, and place two expansion plates 400 in the middle of the joint, send control command to air pump 140 through control panel 120, air pump 140 opens and carries gas in gasbag 210 through breather pipe 200, drive expansion plate 400 through gasbag 210 rises and removes, make and tighten up spring 300 and stretch, and connecting rod 500 slides along lifting lever 510, make expansion plate 400 rectilinear movement, and pressure when perception joint and expansion plate 400 contact through piezoelectric sensor 410, in time control air pump 140 closes, the accurate control of being convenient for.

Referring to fig. 1 again, a handle 150 is installed at the bottom end of the exterior of the housing 100, anti-slip grooves 151 are formed on both sides of the handle 150, specifically, the bottom end of the exterior of the housing 100 is connected with the handle 150 through a bolt thread, anti-slip grooves 151 are formed on both sides of the handle 150, the handle 150 is used for facilitating the holding of the device, and the anti-slip grooves 151 are used for providing an anti-slip function.

Referring to fig. 1 and fig. 2 again, a connecting piece 131 is installed at the bottom end of the storage battery 130, the connecting piece 131 is a USB connector, specifically, the connecting piece 131 is connected to the bottom end of the storage battery 130 in an embedded manner, the connecting piece 131 is a USB connector, and the connecting piece 131 is used for connecting an external device to charge the storage battery 130.

Referring to fig. 2 again, six heat dissipation holes 160 are formed in two side walls of the interior of the housing 100, dust screens 161 are installed in the six heat dissipation holes 160, specifically, six heat dissipation holes 160 are formed in two side walls of the interior of the housing 100, the dust screens 161 are embedded and connected in the six heat dissipation holes 160, the heat dissipation holes 160 are used for providing a heat dissipation function, and the dust screens 161 are used for preventing dust from passing through.

Referring to fig. 1 again, an anti-slip cover 511 is installed outside the lifting bar 510, the anti-slip cover 511 is made of rubber material, specifically, the anti-slip cover 511 is sleeved outside the lifting bar 510, the anti-slip cover 511 is made of rubber material, and the anti-slip cover 511 is used for facilitating grasping the lifting bar 510.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (5)

1. A distraction device for use in total knee arthroplasty, comprising: the air pump type air compressor comprises a shell (100), a vent pipe (200), tightening springs (300), opening plates (400) and connecting rods (500), wherein a display screen (110) and a control panel (120) are installed on the outer front wall of the shell (100), a storage battery (130) is installed at the inner bottom end of the shell (100), an air pump (140) is installed at the inner top end of the shell (100), an output pipe of the air pump (140) penetrates through the shell (100) and is connected with the vent pipe (200), an air bag (210) is installed on the outer wall of the vent pipe (200), the vent pipe (200) is connected with the air bag (210), four tightening springs (300) are installed on the top end and the bottom end of the vent pipe (200), two opening plates (400) are installed on one end of each tightening spring (300), a piezoelectric sensor (410) is installed on one side wall of each opening plate (400), and the connecting rods (500) are installed on the front wall of each opening plate (400), two the equal swing joint of one end of connecting rod (500) has shadoof (510), two stopper (520) are all installed to the one end of connecting rod (500).

2. The distraction device for total knee arthroplasty according to claim 1, wherein a handle (150) is installed at the bottom end of the outer part of the housing (100), and anti-skid grooves (151) are opened on both sides of the handle (150).

3. The distraction device according to claim 1, wherein a connection piece (131) is mounted at the bottom end of the accumulator (130), and the connection piece (131) is a USB connection port.

4. The distraction device for total knee replacement according to claim 1, wherein six heat dissipation holes (160) are formed on two side walls of the interior of the housing (100), and a dust screen (161) is installed inside each of the six heat dissipation holes (160).

5. The distraction device for total knee arthroplasty according to claim 1, wherein the outside of the lifting rod (510) is mounted with an anti-slip sleeve (511), the anti-slip sleeve (511) being made of rubber material.

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