Simple pelvic fracture temporary fixation device

Abstract

The application relates to a simple pelvic fracture temporary fixing device, which comprises L-shaped supports, a sliding frame and a guide pipe, the two L-shaped supports are oppositely arranged; the sliding frame is movably installed between the two L-shaped supports, and the distance between the two L-shaped supports can be adjusted by changing the cooperation degree between the sliding frame and the L-shaped supports; the guide pipe is installed at the bottom of the L-shaped support and is arranged in parallel with the sliding frame. The application is simple in whole and convenient to operate, can effectively shorten the time length of the fixing process, guarantee the pelvic fixing effect, and avoid secondary injury to the patient.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of orthopedic medical devices, and particularly relates to a simple pelvic fracture temporary fixing device. BACKGROUND

[0002] Pelvic fracture is a kind of serious trauma, which is mostly caused by high-energy trauma, and more than half of the patients have complications or multiple injuries, and the disability rate is as high as 50% to 60%. In severe cases, it can lead to traumatic hemorrhagic shock and pelvic organ combined injury, and the mortality rate is as high as 10.2% if not properly treated. Therefore, when pelvic fracture trauma occurs, a temporary fixing device needs to be used to temporarily fix the pelvis of the patient so that the patient can be sent to the hospital.

[0003] There are generally two ways for the existing pelvic fracture temporary fixing. The first way is to directly use a guide needle to fix, and this way is prone to failure in the process of patient transportation or surgery, thereby causing secondary injury to the patient. The second way is to use a fixing support, but the existing fixing support has a complex structure and is tedious to operate, so that the whole fixing process takes a long time, which is prone to delay the optimal rescue time of the patient, and is very inconvenient to use. SUMMARY

[0004] The application aims to provide a simple pelvic fracture temporary fixing device to solve the problems of complex structure and inconvenient use of the pelvic fracture fixing support.

[0005] The simple pelvic fracture temporary fixing device is achieved in the following manner:

[0006] The simple pelvic fracture temporary fixing device comprises

[0007] Two L-shaped supports are arranged oppositely;

[0008] A sliding frame is movably installed between the two L-shaped supports, and the distance between the two L-shaped supports can be adjusted by changing the fitting degree between the sliding frame and the L-shaped supports;

[0009] A guide pipe is installed at the bottom of the L-shaped support and arranged in parallel with the sliding frame.

[0010] Further, the L-shaped support is provided with a plug hole in the transverse part, and the two ends of the sliding frame are correspondingly inserted into the plug holes of the two L-shaped supports.

[0011] Further, a plurality of clamping grooves are formed in the sliding frame, and a clamping buckle assembly is arranged on the transverse part of the L-shaped support and matched with the clamping grooves.

[0012] Further, the buckle assembly comprises a card rotatably installed on the L-shaped support and clamped at one end in the clamping groove, and a limiting pin located at the other end of the card and used for limiting the card from separating from the clamping groove.

[0013] Further, the L-shaped support is provided with a limiting strip hole located at the inner side of the card, and the limiting pin is installed in the limiting strip hole.

[0014] Further, the limiting pin is provided with a U-shaped notch penetrating the radial direction at both ends, the hole diameter of the limiting strip hole at both ends is larger than the hole diameter in the middle, and the limiting pin can be moved from one end to the other end of the limiting strip hole by extruding the U-shaped notch.

[0015] Further, the middle of the sliding bracket is provided with a stop block.

[0016] Further, the bottom of the vertical part of the L-shaped support is provided with a threaded sleeve, a threaded guide sleeve is threadedly connected in the threaded sleeve, and the guide pipe is installed in the threaded guide sleeve.

[0017] Further, rotating the threaded guide sleeve to the inner side of the L-shaped support can drive the guide pipe to move inward.

[0018] Further, the outer end of the threaded guide sleeve is provided with a nut, the outer part of the guide pipe is provided with a boss located at the inner side of the threaded guide sleeve, and the outer diameter of the boss is not less than the inner diameter of the threaded guide sleeve.

[0019] After adopting the above technical scheme, the present application has the following beneficial effects:

[0020] The present application is simple in whole, convenient to operate, not only effectively shortens the time length of the fixing process, but also can guarantee the effect of pelvic fixation, improve stability, prevent the risk of fixation failure, and avoid secondary injury to the patient. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in combination with the drawings and examples.

[0022] Figure 1 is a structure diagram of a simple pelvic fracture temporary fixation device of a preferred embodiment of the present application;

[0023] Figure 2 is Figure 1 is an enlarged view of part A in FIG. 4;

[0024] Figure 3 is a structure diagram of a simple pelvic fracture temporary fixation device of a preferred embodiment of the present application;

[0025] Figure 4is a structure diagram of a connection between a L-shaped support and a sliding frame of a simple pelvic fracture temporary fixing device of a preferred embodiment of the present application in a disassembled state;

[0026] Figure 5 is Figure 4 is an enlarged view of part B in FIG. 4;

[0027] Figure 6 is Figure 4 is an enlarged view of part C in FIG. 4;

[0028] Figure 7 is a structure diagram of a L-shaped support of a simple pelvic fracture temporary fixing device of a preferred embodiment of the present application;

[0029] Figure 8 is a structure diagram of a limiting pin of a simple pelvic fracture temporary fixing device of a preferred embodiment of the present application;

[0030] In the figure: L-shaped support 1, horizontal part 1-1, vertical part 1-2, lightening hole I 1-3, reinforcing rib 1-4, insertion hole 1-5, lightening hole II 1-6, installation notch 1-7, limiting strip hole 1-8, flange 1-9, sliding frame 2, guide groove 2-1, chamfer 2-2, clamping groove 2-3, inclined surface II 2-4, guide pipe 3, conical structure 3-1, boss 3-2, guide block 4, card 5, protruding block 5-1, inclined surface I 5-2, limiting pin 6, U-shaped notch 6-1, pin 7, torsion spring 8, end cap 9, stop block 10, threaded sleeve 11, threaded guide sleeve 12, nut 12-1. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0033] As Figures 1-8As shown in the figure, a simple pelvic fracture temporary fixing device comprises L-shaped supports 1, a sliding frame 2 and a catheter 3, the L-shaped supports 1 are arranged oppositely, the sliding frame 2 is movably installed between the two L-shaped supports 1, and the distance between the two L-shaped supports 1 can be adjusted by changing the fitting degree between the sliding frame 2 and the L-shaped supports 1, and the catheter 3 is installed at the bottom of the L-shaped support 1 and arranged in parallel with the sliding frame 2.

[0034] Specifically, the L-shaped support 1 comprises a horizontal portion 1-1 and a vertical portion 1-2, wherein the sliding frame 2 is assembled in the horizontal portion 1-1, and the catheter 3 is installed at the bottom of the vertical portion 1-2.

[0035] Preferably, the horizontal portion 1-1 and the vertical portion 1-2 of the L-shaped support 1 are of split structure, which is convenient for processing.

[0036] Specifically, the top of the vertical portion 1-2 is provided with an embedding block, and the bottom of the horizontal portion 1-1 is provided with an embedding groove, the embedding block is embedded in the embedding groove and fixed by a pin, thereby realizing the fixation of the vertical portion 1-2 and the horizontal portion 1-1.

[0037] Preferably, a weight-reducing hole Ⅰ 1-3 is arranged on the vertical portion 1-2 of the L-shaped support 1 to reduce the weight of the entire fixing device.

[0038] Preferably, a reinforcing rib 1-4 is arranged in the weight-reducing hole Ⅰ 1-3 to ensure the structural strength of the fixing device while reducing the weight.

[0039] In order to realize the fitting installation of the L-shaped support 1 and the sliding frame 2, an insertion hole 1-5 is arranged in the horizontal portion 1-1 of the L-shaped support 1, and the two ends of the sliding frame 2 are correspondingly inserted into the insertion holes 1-5 of the two L-shaped supports 1.

[0040] Specifically, the insertion hole 1-5 penetrates through the horizontal portion 1-1 of the L-shaped support 1, and the end of the sliding frame 2 is inserted into the insertion hole 1-5 from the end of the horizontal portion 1-1, so as to realize the fitting of the two.

[0041] Preferably, a guide groove 2-1 is arranged on the outer surface of the sliding frame 2, and a guide block 4 is arranged on the inner wall of the insertion hole 1-5 and fitted in the guide groove 2-1, when the sliding frame 2 is inserted into the insertion hole 1-5, the guide block 4 is located in the guide groove 2-1, and the two are relatively moved.

[0042] In this embodiment, the guide groove 2-1 is located on the bottom surface of the sliding frame 2.

[0043] Preferably, the guide block 4 is made of silica gel material, the top of which is spherical, and the guide groove 2-1 is an arc-shaped groove, and the end of the guide groove 2-1 is an arc-shaped transition end, which is convenient for extruding the guide block 4 when separating the sliding frame 2 and the L-shaped support 1, so as to make the guide block 4 out of the guide groove 2-1.

[0044] The guide block 4 is made of silicone, which also provides a damping sensation to the relative sliding of the sliding frame 2 and the L-shaped bracket 1, thus making the operation smoother.

[0045] Preferably, the guide block 4 is fixed to the mounting hole on the L-shaped bracket 1 by means of adhesive, but not limited to adhesive.

[0046] Preferably, the upper edge of the end of the sliding frame 2 is provided with a chamfer 2-2, which facilitates the insertion of the sliding frame 2.

[0047] Preferably, the side of the transverse portion 1-1 of the L-shaped bracket 1 is provided with weight-reducing holes Ⅱ1-6, which can not only reduce the weight of the entire fixing device, but also allow for a direct assessment of the fit between the sliding frame 2 and the L-shaped bracket 1.

[0048] In order to fix the relative position between the sliding frame 2 and the L-shaped bracket 1, the sliding frame 2 is provided with several slots 2-3, and the horizontal part 1-1 of the L-shaped bracket 1 is provided with a buckle assembly that cooperates with the slots 2-3.

[0049] In this embodiment, the slot 2-3 is located on the upper surface of the sliding frame 2 and is symmetrically arranged in two parts, which respectively cooperate with two L-shaped brackets 1, while the upper surface of the transverse part 1-1 is provided with an installation slot 1-7 for installing the buckle assembly.

[0050] In order to lock the sliding frame 2 and the L-shaped bracket 1, the buckle assembly includes a card 5 rotatably mounted on the L-shaped bracket 1 and one end of which is locked in the card slot 2-3, and a limiting pin 6 located at the other end of the card 5 to limit the separation of the card 5 from the card slot 2-3.

[0051] Specifically, a pin 7 is installed in the mounting slot 1-7, the card 5 is rotatably mounted on the pin 7, and a torsion spring 8 is installed on the pin 7 located on the lower side of the card 5.

[0052] The bottom of the outer end of the card 5 is provided with a protrusion 5-1 that fits into the card slot 2-3. By pressing down the inner end of the card 5, the torsion spring 8 is compressed, causing the outer end of the card 5 to rise, so as to separate the protrusion 5-1 from the card slot 2-3.

[0053] Preferably, the lower surface of the protrusion 5-1 is an inclined surface I5-2 that slopes upward on the inside, while the upper part of the inner groove wall of the slot 2-3 is an inclined surface II2-4 that cooperates with the inclined surface I5-2. By setting the inclined surface I5-2 and the inclined surface II2-4 in cooperation, it is more convenient to insert the sliding frame 2 into the insertion hole 1-5 of the L-shaped bracket 1.

[0054] When the limiting pin 6 is located below the inner end of the card 5, it can limit the downward pressure of the inner end of the card 5, thereby limiting the separation of the card 5 from the card slot 2-3 and ensuring the stability of the sliding frame 2 and the L-shaped bracket 1. In order to realize the installation of the limiting pin 6, the L-shaped bracket 1 has a limiting strip hole 1-8 located on the inner side of the card 5, and the limiting pin 6 is installed in the limiting strip hole 1-8.

[0055] Specifically, the limiting strip hole 1-8 is located on the side wall of the mounting slot 1-7, with its outer end located below the inner end of the card 5, so that when the limiting pin 6 is located at the outer end of the limiting strip hole 1-8, it can restrict the separation of the card 5 from the card slot 2-3.

[0056] Preferably, in order to prevent the limiting pin 6 from coming out of the limiting strip hole 1-8, end caps 9 are provided at both ends of the limiting pin 6.

[0057] When the limiting pin 6 moves to the outer end of the limiting strip hole 1-8, the limiting pin 6 is located below the inner end of the card 5, thereby restricting the downward pressure of the inner end of the card 5 and realizing the locking between the sliding frame 2 and the L-shaped bracket 1; when the limiting pin 6 moves to the inner end of the limiting strip hole 1-8, it avoids the card 5, and at this time the inner end of the card 5 can be smoothly pressed down, realizing the separation of the card 5 from the card slot 2-3. In order to realize the position switching of the limiting pin 6 within the limiting strip hole 1-8, the two ends of the limiting pin 6 are respectively provided with U-shaped slots 6-1 penetrating its radial direction. The diameter of the holes at both ends of the limiting strip hole 1-8 is larger than the diameter of the middle hole. The limiting pin 6 can move from one end of the limiting strip hole 1-8 to the other end by pressing the U-shaped slot 6-1.

[0058] In order to form a limiting strip hole 1-8 structure with large diameter at both ends and small diameter in the middle, a flange 1-9 is provided in the middle of the upper wall or the middle of the lower wall of the limiting strip hole 1-8. The flange 1-9 and the two ends of the limiting strip hole 1-8 are connected by a bevel to facilitate the movement of the limiting pin 6.

[0059] In this embodiment, the flange 1-9 is disposed in the middle of the upper wall of the limiting strip hole 1-8.

[0060] The U-shaped slot 6-1 facilitates the compression of the portion of the limiting pin 6 located in the limiting strip hole 1-8, thereby enabling the limiting pin 6 to move within the limiting strip hole 1-8.

[0061] Specifically, one side wall of the U-shaped groove 6-1 is connected to the end cap 9, while the other side wall is a free end. By pressing the U-shaped groove 6-1, the limiting pin 6 can pass through the small diameter part in the middle of the limiting strip hole 1-8, so as to move to the other end of the limiting strip hole 1-8.

[0062] In order to limit the movement between the sliding frame 2 and the L-shaped bracket 1, a stop block 10 is installed in the middle of the sliding frame 2.

[0063] In the embodiment, the stopper 10 is fixed on the middle position of the upper surface of the sliding frame 2 by a screw.

[0064] In order to facilitate the installation of the catheter 3, a threaded sleeve 11 is installed on the bottom of the vertical part 1-2 of the L-shaped support 1, and a threaded guide sleeve 12 is threadedly connected in the threaded sleeve 11, and the catheter 3 is installed in the threaded guide sleeve 12.

[0065] Specifically, the threaded sleeve 11 is fixed in a through hole on the bottom of the vertical part 1-2, and an internal thread is arranged in the threaded sleeve 11, while an external thread is arranged on the threaded guide sleeve 12, which can be threadedly matched with the threaded sleeve 11, and the catheter 3 is inserted into the threaded guide sleeve 12.

[0066] Preferably, the inner end of the catheter 3 is in a conical structure 3-1, which facilitates the entry into the human skin and abuts against the bone surface.

[0067] When the pelvis is fixed, the catheter 3 needs to be moved inward so that the inner end thereof abuts against the bone surface, and in order to achieve this effect, rotating the threaded guide sleeve 12 toward the inner side of the L-shaped support 1 can drive the catheter 3 to move inward.

[0068] In order to drive the catheter 3 to move inward through the threaded guide sleeve 12, the outer end of the threaded guide sleeve 12 is provided with a nut 12-1, and the outer portion of the catheter 3 is provided with a boss 3-2 inside the nut, and the outer diameter of the boss 3-2 is not less than the inner diameter of the threaded guide sleeve 12.

[0069] The nut 12-1 can be matched with a wrench to rotate the threaded guide sleeve 12, so as to push the catheter 3 to move inward through the boss 3-2.

[0070] Preferably, in order to increase the anti-skid property between the catheter 3 and the bone surface and ensure the stability of the temporary fixation of the pelvis, the inner end face of the catheter 3 is in a sawtooth surface.

[0071] In the treatment of pelvic fracture, the skin is cut on the side of the pelvis which is not fractured, and a guide needle is implanted into the bone of the side for temporary fixation, and then two L-shaped supports 1 are assembled, i.e. the threaded guide sleeve 12 is assembled in the threaded sleeve 11 on the L-shaped support 1, and the catheter 3 is assembled in the threaded guide sleeve 12. After the two L-shaped supports 1 are assembled, one of the L-shaped supports 1 is matched with the sliding frame 2 along the insertion hole 1-5, and the catheter 3 on the L-shaped support 1 is inserted along the guide needle, and then the L-shaped support 1 is moved relative to the sliding frame 2 until the inner end of the catheter 3 abuts against the bone surface, at which time the locking pin 6 can be used to lock the card 5 to ensure the stability between the sliding frame 2 and the L-shaped support 1. Since the guide needle is not implanted on the side of the pelvis which is fractured, only the skin is cut, and then the other L-shaped support 1 can be assembled on the other end of the sliding frame 2 in the above-mentioned manner until the inner end of the catheter 3 on the L-shaped support 1 abuts against the bone surface, so that the temporary fixation of the pelvis of the patient can be achieved, and the whole process is simple and fast, and the fixation effect is good.

[0072] The present application has simple structure, can provide stable fixing structure, is simple and fast to install, reduces temporary fixing time, and effectively reduces the bleeding amount of the patient.

[0073] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A simple temporary fixation device for pelvic fractures, characterized in that, include L-shaped brackets (1) are provided in two pairs arranged opposite to each other; A sliding frame (2) is movably mounted between two L-shaped brackets (1), and the distance between the two L-shaped brackets (1) can be adjusted by changing the degree of fit between the sliding frame (2) and the L-shaped brackets (1); The conduit (3) is installed at the bottom of the L-shaped bracket (1) and is arranged parallel to the sliding frame (2); The sliding frame (2) has several slots (2-3), and the horizontal part of the L-shaped bracket (1) is provided with a buckle assembly that cooperates with the slots (2-3); The buckle assembly includes a card (5) rotatably mounted on the L-shaped bracket (1) and one end of which is engaged in the card slot (2-3), and a limiting pin (6) located at the other end of the card (5) for limiting the separation of the card (5) from the card slot (2-3). The L-shaped bracket (1) has a limiting strip hole (1-8) located inside the card (5), and the limiting pin (6) is installed in the limiting strip hole (1-8); The limiting pin (6) has U-shaped slots (6-1) that penetrate its radial direction at both ends. The diameter of the holes at both ends of the limiting strip hole (1-8) is larger than the diameter in the middle. The limiting pin (6) can move from one end of the limiting strip hole (1-8) to the other end by pressing the U-shaped slot (6-1). The L-shaped bracket (1) has insertion holes (1-5) in its horizontal portion, and the two ends of the sliding bracket (2) are inserted into the insertion holes (1-5) of the two L-shaped brackets (1).

2. The simplified temporary fixation device for pelvic fractures according to claim 1, characterized in that, A stop (10) is installed in the middle of the sliding frame (2).

3. The simplified temporary fixation device for pelvic fractures according to claim 1, characterized in that, The bottom of the vertical part of the L-shaped bracket (1) is fitted with a threaded sleeve (11), and a threaded guide sleeve (12) is threadedly connected to the threaded sleeve (11). The guide tube (3) is installed inside the threaded guide sleeve (12).

4. The simplified temporary fixation device for pelvic fractures according to claim 3, characterized in that, Rotating the threaded guide sleeve (12) inside the L-shaped bracket (1) can drive the conduit (3) to move inward.

5. The simplified temporary fixation device for pelvic fractures according to claim 4, characterized in that, The outer end of the threaded guide sleeve (12) is provided with a nut (12-1), and the outside of the conduit (3) is provided with a boss (3-2) located inside the threaded guide sleeve (12), and the outer diameter of the boss (3-2) is not less than the inner diameter of the threaded guide sleeve (12).

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