Pelvic fracture distraction equipment

Abstract

The utility model relates to the technical field of medical equipment, in particular to pelvic fracture distraction equipment. Comprising an adjusting frame and an auxiliary mechanism, the auxiliary mechanism comprises a first angle arm, a second angle arm, a first telescopic arm, a second telescopic arm, a fixing frame, a connecting device and a locking device, and when equipment is assembled, the adjusting frame, the first angle arm, the second angle arm, the first telescopic arm and the second telescopic arm are combined and installed in advance; threaded steel nails are symmetrically driven into pelvic bones on the left side and the right side of a patient, the threaded steel nails are fixed through the fixing frame and the locking device, the fixing frame and the first telescopic arm and the second telescopic arm are installed in a matched mode through the connecting device, and finally the first angle arm and the second angle arm are slowly opened and locked through the locking device after being opened to a proper angle. Therefore, when the equipment is installed and used, convenient and fast installation can be achieved during installation, the clamping stability and the working efficiency can be improved during use, and operation and use are better facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a pelvic fracture distraction device. Background Art

[0002] Fractures are more common in children and the elderly. Pelvic fracture is a form of fracture injury and also a serious trauma. Most of them are caused by high-energy trauma. Most of them are accompanied by complications or multiple injuries, and the disability rate is relatively high.

[0003] When treating pelvic fractures, the goal of treatment is to restore the function of the injured limb to the greatest extent possible. Therefore, reduction and fixation are very important in the treatment of pelvic fractures. At present, reduction and fixation mostly use a stent to expand the fracture site to achieve the corresponding treatment purpose.

[0004] When the existing equipment is in use, after the opening angle of the equipment is adjusted, the equipment needs to be installed on the patient's body through steel nails. This method is prone to problems with mismatched adjustment angles and requires secondary installation, which increases the operation time and is uncomfortable for the patient. When installing the steel nails, the steps are also cumbersome and the installation time is long, which greatly reduces the work efficiency of medical staff. Utility Model Content

[0005] The purpose of the utility model is to provide a pelvic fracture distraction device, which can be easily installed when the device is installed and used, and can improve the clamping stability and work efficiency when used, which is more conducive to operation and use.

[0006] To achieve the above-mentioned purpose, the utility model provides a pelvic fracture distraction device, including an adjustment frame and an auxiliary mechanism;

[0007] The auxiliary mechanism includes a first angle arm, a second angle arm, a first telescopic arm, a second telescopic arm, a fixing frame, a connecting device and a locking device. The first angle arm is detachably connected to the adjusting frame and is located on the left side of the adjusting frame. The second angle arm is detachably connected to the adjusting frame and is located on the right side of the adjusting frame. The first telescopic arm is fixedly connected to the first angle arm and is located on the side of the first angle arm away from the adjusting frame. The second telescopic arm is fixedly connected to the second angle arm and is located on the side of the second angle arm away from the adjusting frame. The fixing frames are respectively arranged on the first telescopic arm and the second telescopic arm for fixing threaded steel nails. The threaded steel nails are located on the fixing frame. The connecting device is arranged on one side of the fixing frame. The locking devices are respectively arranged on the first angle arm, the second angle arm and the fixing frame.

[0008] Among them, the connecting device includes a limit head and a threaded sleeve cover, the limit head is fixedly connected to the first telescopic arm and the second telescopic arm respectively, and is respectively located on the side of the first telescopic arm and the second telescopic arm close to the fixed frame; the threaded sleeve cover is slidably connected to the limit head, and is threadedly connected to the fixed frame, and is located on the side of the limit head close to the fixed frame.

[0009] Wherein, the locking device includes a first locking nut and a second locking nut, the first locking nut is rotatably connected to the first angle arm and is located on the side of the first angle arm close to the adjustment frame; the second locking nut is rotatably connected to the second angle arm and is located on the side of the second angle arm close to the adjustment frame.

[0010] Wherein, the locking device further comprises a third locking nut, and the third locking nut is rotatably connected to the fixing frame and is located on the fixing frame.

[0011] Wherein, the auxiliary mechanism also includes a stabilizing block and a limiting block, wherein the stabilizing block is detachably connected to the adjusting frame and is located on both sides of the adjusting frame; the limiting block is fixedly connected to the stabilizing block and is located on one side of the stabilizing block close to the adjusting frame.

[0012] The utility model discloses a pelvic fracture distraction device. When the device is assembled, the adjustment frame and the first angle arm and the second angle arm are preliminarily installed and connected as a whole. Then, the first telescopic arm and the second telescopic arm are installed, and the device can be further assembled and installed in advance. When the device is in use, the threaded steel nails are first symmetrically driven into the left and right pelvises of the patient. Then, the threaded steel nails are fixed by the fixing frame and locked by the locking device. Then, the fixing frame is respectively matched with the first telescopic arm and the second telescopic arm for installation through the connecting device. Finally, the first angle arm and the second angle arm are slowly distracted. At the same time, the first telescopic arm and the second telescopic arm are distracted at the same time. After being distracted to a suitable angle, they are locked by the locking device to complete the installation. The fixing frame that is damaged or needs to be replaced can be quickly replaced through the connecting device, so that when the device is installed and used, convenient installation can be achieved. When used, the card connection stability and work efficiency can be improved, which is more conducive to operation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the overall structure of the pelvic fracture distraction device of the first embodiment of the utility model.

[0015] Figure 2It is a structural schematic diagram of a fixing frame according to the first embodiment of the utility model.

[0016] Figure 3 It is a cross-sectional view of the limiting head of the first embodiment of the utility model.

[0017] Figure 4 It is a schematic diagram of the overall structure of the pelvic fracture distraction device according to the second embodiment of the utility model.

[0018] Figure 5 It is a structural schematic diagram of a stabilizing block according to the second embodiment of the utility model.

[0019] In the figure: 101-adjusting frame, 102-first angle arm, 103-second angle arm, 104-first telescopic arm, 105-second telescopic arm, 106-fixing frame, 107-threaded steel nail, 108-limiting head, 109-threaded sleeve cover, 110-first locking nut, 111-second locking nut, 112-third locking nut, 201-limiting block, 202-stabilizing block. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] Embodiment 1:

[0022] like Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the overall structure of the pelvic fracture distraction device. Figure 2 is a schematic structural diagram of the fixing frame 106, Figure 3 It is a cross-sectional view of the limit head 108. The utility model provides a pelvic fracture distraction device: including an adjustment frame 101 and an auxiliary mechanism, the auxiliary mechanism includes a first angle arm 102, a second angle arm 103, a first telescopic arm 104, a second telescopic arm 105, a fixing frame 106, a connecting device and a locking device, the connecting device includes a limit head 108 and a threaded sleeve 109, and the locking device includes a first locking nut 110, a second locking nut 111 and a third locking nut 112. Through the above scheme, it can be realized that when the equipment is installed and used, it can be installed conveniently during installation, and the clamping stability and work efficiency can be improved during use, which is more conducive to operation and use. It can be understood that the above scheme can be installed conveniently during installation when the equipment is installed and used, and the clamping stability and work efficiency can be improved during use, which is more conducive to operation and use.

[0023] In this embodiment, the adjustment frame 101 is formed by connecting and assembling two curved blocks, and the outer curved block has a threaded column to facilitate the installation of the rear curved plate by bolt connection.

[0024] Among them, the first angle arm 102 is detachably connected to the adjusting frame 101 and is located on the left side of the adjusting frame 101, the second angle arm 103 is detachably connected to the adjusting frame 101 and is located on the right side of the adjusting frame 101, the first telescopic arm 104 is fixedly connected to the first angle arm 102 and is located on the side of the first angle arm 102 away from the adjusting frame 101, the second telescopic arm 105 is fixedly connected to the second angle arm 103 and is located on the side of the second angle arm 103 away from the adjusting frame 101, the fixing frames 106 are respectively arranged on the first telescopic arm 104 and the second telescopic arm 105, and are used to fix threaded steel nails 107, and the threaded steel nails 107 are located on the fixing frame 106, the connecting device is arranged on one side of the fixing frame 106, and the locking devices are respectively arranged on the first angle arm 102, the second angle arm 103 and the fixing frame 106. The first angle arm 102 and the second angle arm 103 are consistent in size, and the working head can slide on the curved slide groove on the adjustment frame 101, and then be locked by the locking device. The back of the working head is installed with a limit plate by bolts. The first telescopic arm 104 can be slidably adjusted on the connecting end of the first angle arm 102, and after adjustment, it is fixed by tightening the nut. The cross-section of the sliding matching end of the first telescopic arm 104 and the first angle arm 102 is "U" shaped, so that only linear sliding can be performed, and rotation is not allowed. The second telescopic arm 104 can be adjusted by sliding on the connecting end of the first angle arm 102. The arm 105 can be slidably adjusted on the connecting end of the second angle arm 103, and after adjustment, it is fixed by tightening the nut. The cross-section of the sliding matching end of the second telescopic arm 105 and the second angle arm 103 is "U"-shaped, so that only linear sliding is possible and rotation is not possible. The fixing frame 106 is respectively arranged on the first telescopic arm 104 and the second telescopic arm 105 through the connecting device. A rectangular elastic groove is provided on the elastic end of the fixing frame 106, and a plurality of clamping holes are provided inside the elastic groove at intervals to facilitate the fixation of the threaded steel nail 107.

[0025] Secondly, the limit head 108 is fixedly connected to the first telescopic arm 104 and the second telescopic arm 105, respectively, and is respectively located on the side of the first telescopic arm 104 and the second telescopic arm 105 close to the fixing frame 106; the threaded cover 109 is slidably connected to the limit head 108, and is threadedly connected to the fixing frame 106, and is located on the side of the limit head 108 close to the fixing frame 106, and a through countersunk hole is provided inside the limit head 108, which is convenient for being installed on the first telescopic arm 104 and the second telescopic arm 105 respectively by bolts. The cross-section of the limit head 108 is "T"-shaped, which is convenient for the threaded cover 109 to limit the position. The threaded cover 109 can be installed and matched with the threaded connection part of the fixing frame 106, so that the fixing frame 106 is connected and fixed to the first telescopic arm 104 and the second telescopic arm 105 respectively. When replacing, the threaded cover 109 can be loosened to remove the fixing frame 106, so as to realize quick installation and replacement.

[0026] Then, the first locking nut 110 is rotatably connected to the first angle arm 102 and is located on the side of the first angle arm 102 close to the adjustment frame 101; the second locking nut 111 is rotatably connected to the second angle arm 103 and is located on the side of the second angle arm 103 close to the adjustment frame 101, the first locking nut 110 is installed on the first angle arm 102, and is used to fix the first angle arm 102 after sliding adjustment on the adjustment frame 101, and the second locking nut 111 is installed on the second angle arm 103, and is used to fix the second angle arm 103 after sliding adjustment on the adjustment frame 101.

[0027] Finally, the third locking nut 112 is rotatably connected to the fixing frame 106 and is located on the fixing frame 106 . The third locking nut 112 is installed on the elastic end of the fixing frame 106 to fix the threaded steel nail 107 .

[0028] When using a pelvic fracture distraction device of the utility model, when installing the device, firstly, the working heads of the first angle arm 102 and the second angle arm 103 are respectively matched with the sliding grooves on the curved plate on the back side of the adjusting frame 101, and the upper limit plates are respectively installed. Then, the curved plate on the front side of the adjusting frame 101 is connected with the rear curved plate by bolts to complete the assembly of the adjusting frame 101. Then, the first locking nut 110 is installed on the first angle arm 102, and the second locking nut 111 is installed on the second angle arm 103. Further, the first telescopic arm 104 is installed on the first angle arm 102 by fastening nuts, and the second telescopic arm 105 is installed on the second angle arm 103 by fastening nuts. Further, the threaded sleeve cover 109 is inserted into the limit head 108. Then, the limit heads 108 are respectively installed on the first telescopic arm 104 and the second telescopic arm 105 by bolts, thereby realizing the initial quick connection and installation of the device, and also facilitating the subsequent convenient operation of the device. When in use, the threaded steel nails 107 are first driven symmetrically into the left and right pelvic bones of the patient, and then the threaded steel nails 107 are inserted through the clamping holes in the elastic part of the fixing frame 106 to match, and then the third locking nut 112 is screwed on to fix the threaded steel nails 107, and then the fixing frame 106 is respectively matched with the first telescopic arm 104 and the second telescopic arm 105 through the connection and matching of the threaded sleeve cover 109 and the threaded connection part of the fixing frame 106, and finally the first telescopic arm 104 and the second telescopic arm 105 are slowly opened. An angle arm 102 and the second angle arm 103, at the same time, the first telescopic arm 104 and the second telescopic arm 105 are simultaneously opened. After being opened to a suitable angle, the first locking nut 110 and the second locking nut 111 are used to lock the installation. The fixed frame 106 that is damaged or needs to be replaced can be quickly replaced through the connecting device to improve work efficiency, thereby achieving convenient installation during installation and improving the card connection stability and work efficiency during use, which is more conducive to operation.

[0029] Embodiment 2:

[0030] like Figure 4 and Figure 5 As shown, Figure 4 This is a schematic diagram of the overall structure of the pelvic fracture distraction device. Figure 5 20 is a schematic diagram of the structure of the stabilizing block 202 . On the basis of the first embodiment, the utility model provides a pelvic fracture distraction device, wherein the auxiliary mechanism further includes a stabilizing block 202 and a limiting block 201 .

[0031] Among them, the stabilizing block 202 is detachably connected to the adjusting frame 101 and is located on both sides of the adjusting frame 101; the limiting block 201 is fixedly connected to the stabilizing block 202 and is located on the side of the stabilizing block 202 close to the adjusting frame 101. The cross-section of the stabilizing block 202 is T-shaped, which can pass through the curved slide groove on the adjusting frame 101 and is symmetrically arranged at the end positions on both sides of the curved slide groove of the adjusting frame 101. The limiting block 201 is provided with a countersunk hole and is connected to the stabilizing block 202 by bolts.

[0032] In this embodiment, by installing the limiting block 201, the stabilizing block 202 and the adjusting frame 101 in coordination, an I-shaped tensioning structure is formed, which can further ensure the stability of the adjusting frame 101 after installation, and facilitate stable use of the device.

[0033] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A pelvic fracture distraction device, comprising an adjustment frame, characterized in that: It also includes auxiliary institutions; The auxiliary mechanism includes a first angle arm, a second angle arm, a first telescopic arm, a second telescopic arm, a fixing frame, a connecting device and a locking device. The first angle arm is detachably connected to the adjusting frame and is located on the left side of the adjusting frame. The second angle arm is detachably connected to the adjusting frame and is located on the right side of the adjusting frame. The first telescopic arm is fixedly connected to the first angle arm and is located on the side of the first angle arm away from the adjusting frame. The second telescopic arm is fixedly connected to the second angle arm and is located on the side of the second angle arm away from the adjusting frame. The fixing frames are respectively arranged on the first telescopic arm and the second telescopic arm for fixing threaded steel nails. The threaded steel nails are located on the fixing frame. The connecting device is arranged on one side of the fixing frame. The locking devices are respectively arranged on the first angle arm, the second angle arm and the fixing frame.

2. The pelvic fracture distraction device according to claim 1, characterized in that: The connecting device includes a limit head and a threaded sleeve cover, the limit heads are fixedly connected to the first telescopic arm and the second telescopic arm respectively, and are respectively located on the side of the first telescopic arm and the second telescopic arm close to the fixed frame; the threaded sleeve cover is slidably connected to the limit head, and is threadedly connected to the fixed frame, and is located on the side of the limit head close to the fixed frame.

3. The pelvic fracture distraction device according to claim 1, characterized in that: The locking device includes a first locking nut and a second locking nut, the first locking nut is rotatably connected to the first angle arm and is located on a side of the first angle arm close to the adjustment frame; the second locking nut is rotatably connected to the second angle arm and is located on a side of the second angle arm close to the adjustment frame.

4. The pelvic fracture distraction device according to claim 3, characterized in that: The locking device also includes a third locking nut, which is rotatably connected to the fixing frame and is located on the fixing frame.

5. The pelvic fracture distraction device according to claim 1, characterized in that: The auxiliary mechanism also includes a stabilizing block and a limiting block. The stabilizing block is detachably connected to the adjusting frame and is located on both sides of the adjusting frame. The limiting block is fixedly connected to the stabilizing block and is located on one side of the stabilizing block close to the adjusting frame.

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