Inflatable fracture fixing deviceTechnical Field
The invention relates to the technical field of medical supplies, in particular to an inflatable fracture fixing device.
Background
A fracture fixation device is a medical device used to stabilize and support a limb at a fracture of a patient's bone to promote bone healing. The fracture fixation device helps to stabilize bone growth during healing, preventing poor fracture healing or deformity.
Different types of fractures may require different kinds of fixation devices, typically common fixation devices are plaster fixation plates, metal fixation plates, etc. These fixation devices do not match the contours of the patient's limb well and therefore do not promote proper healing of the fracture. There are also inflatable immobilization devices, but it is generally simple to use a straight-tube balloon around the patient's limb. The bladder also does not fit well to the patient's limb, with a large pressure on the thicker part of the patient's limb and a small pressure on the thinner part of the limb.
Disclosure of Invention
The present invention provides an inflatable fracture fixation device that is capable of matching the contours of a patient's limb, solving at least some of the problems associated with the prior art described above.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
An inflatable fracture fixation device comprises a flexible wrapping piece capable of being wound and a fixation assembly arranged in the wrapping piece,
The fixing component comprises a plurality of transverse fixing units and a plurality of longitudinal fixing units, and the transverse fixing units and the longitudinal fixing units are distributed in a cross staggered manner;
The fixing unit comprises a plurality of fixing bodies which are connected in sequence, and the connection angle between the fixing bodies can be adjusted and fixed.
Preferably, the fixing body comprises a cylinder body, one end of the cylinder body is fixed with a connector, the other end of the cylinder body is fixed with a connecting sleeve, and the connecting sleeve can be sleeved on the connector and can rotate on the connector.
Preferably, the connector is spherical, the adapter sleeve is spherical shell shape, a plurality of evenly distributed's fixed slot has been seted up on the inner wall of adapter sleeve, is provided with two at least fixed contact pin on the connector, and fixed contact pin can be received in the connector or the connector is stretched out to part, and when fixed contact pin stretched out the connector, fixed contact pin can insert in the fixed slot.
Preferably, the cavity is offered to the inside of connector, and the cavity is opened with the cavity of barrel, and the one end that the barrel was kept away from to the cavity is opened, and the cavity of adapter sleeve link up with the cavity of barrel, and it has the trachea of intercommunication to alternate in the fixed body of a plurality of same fixed unit, and the part that the trachea is located the cavity is provided with the gasbag, and when the gasbag inflation, the gasbag can be with fixed contact pin part release connector.
Preferably, the connector is provided with a through hole, one end of the through hole in the connector is fixedly provided with a limiting cylinder, the fixed contact pin penetrates through the limiting cylinder and the through hole, one end of the fixed contact pin extending out of the limiting cylinder is provided with a top plate matched with the air bag, and a contraction mechanism for pulling the fixed contact pin into the through hole is arranged in the limiting cylinder.
Preferably, the shrinkage mechanism comprises a first magnet fixed in the limiting cylinder and a second magnet fixed on the part of the fixed contact pin positioned in the limiting cylinder, wherein a cylinder cover is arranged at one end of the limiting cylinder far away from the through hole, the second magnet is positioned between the first magnet and the cylinder cover, and the second magnet repels the first magnet.
Preferably, a hose is arranged in the cladding piece and is communicated with the transverse air pipe and the longitudinal air pipe, and an air inlet nozzle is arranged on the hose.
Preferably, one end of the fixed contact pin matched with the fixed groove is conical, and a horn mouth is arranged at the end part of the fixed groove.
Preferably, the wrapping member is provided with a fixing band for tightening the wrapping member.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up cladding piece and fixed subassembly, horizontal fixed unit and fore-and-aft fixed unit can follow the cladding piece and roll up, and the angle of connection between the fixed body changes along with the coiling to let the connection shape of the fixed body in the cladding piece laminate patient's limbs, when further letting the angle of connection between the fixed body fix, can form the fixed bolster of laminating patient's limb appearance in the cladding piece, fix fracture limb, promote bone healing;
2. The connecting sleeve is internally provided with the connecting sleeve, and the connecting sleeve is internally provided with the connecting sleeve; after the air is discharged, the fixed contact pin can be retracted into the connector under the action of the contraction mechanism, so that the limit on the connection angle of the fixed body is relieved, and the fixing device can be reused.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of the attachment of the fixture of the present invention;
FIG. 4 is a schematic view showing the internal structure of the fixing body of the present invention;
Fig. 5 is a partial enlarged view at B in fig. 4.
In the figure: 1. the device comprises a coating piece, 2, a fixing unit, 3, a fixing body, 4, a cylinder body, 5, a connector, 6, a connecting sleeve, 7, a fixing groove, 8, a fixing contact pin, 9, a cavity, 10, an air pipe, 11, an air bag, 12, a through hole, 13, a limiting cylinder, 14, a top plate, 15, a first magnet, 16, a second magnet, 17, a cylinder cover, 18, a hose, 19, an air inlet nozzle, 20 and a horn mouth.
Detailed Description
The following description of the embodiments of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 5, an inflatable fracture fixation device according to an embodiment of the present invention is provided for fixing a limb of a patient, and includes a cover member 1 and a fixing assembly provided in the cover member 1, wherein the cover member 1 has flexibility, which may be cloth, and is capable of being wound so as to be easily wound around the limb of the patient. As shown in fig. 1, the fixing assembly includes a plurality of fixing units 2 in a transverse direction and a plurality of fixing units 2 in a longitudinal direction, and the specific number may be appropriately set according to the size of the sheathing member 1.
As shown in fig. 1, the transverse fixing units 2 and the longitudinal fixing units 2 are distributed in a cross-shaped and staggered manner, and the fixing units 2 can be fixed on the wrapping member 1 by using fixing wires in a similar weaving matching manner. Each fixing unit 2 comprises a plurality of fixing bodies 3 which are connected in sequence, and the connection angle between the fixing bodies 3 can be adjusted and fixed. The fixing unit 2 can be bent like a wire, so that the fixing unit is wound on the limb of the patient along with the wrapping member 1, and then the connecting angle between the fixing bodies 3 is fixed by using a special fixing mechanism, so that the fixing unit 2 forms a fixation in the wrapping member 1, and the shape of the wrapping member 1 is maintained, thereby realizing the fixation of the fractured limb and promoting the bone healing.
Specifically, as shown in fig. 3, the fixing body 3 of the present invention includes a cylinder 4, a connector 5 and a connecting sleeve 6, wherein the connector 5 and the connecting sleeve 6 are respectively located at two ends of the cylinder 4, and the connecting sleeve 6 can be sleeved on the connector 5 and can rotate on the connector 5. In order to obtain a free rotation effect, the shape of the connector 5 is set to be spherical, the shape of the connecting sleeve 6 is set to be spherical shell, and the connecting sleeve 6 is sleeved on the connector 5 to realize the effect of universal connection.
In order to be able to achieve a stable angular fixation. The invention is provided with a plurality of uniformly distributed fixing grooves 7 on the inner wall of the connecting sleeve 6, and at least two fixing pins 8 are arranged on the connecting head 5, the axial leads of the two fixing pins 8 are not coincident and are intersected with the spherical center of the connecting head 5, and the fixing pins 8 can be received in the connecting head 5 or partially extend out of the connecting head 5. The end of the fixing pin 8 matched with the fixing groove 7 is tapered, and the horn mouth 20 is arranged at the end of the fixing groove 7, so that the fixing pin 8 is easier to insert into the fixing groove 7. When the fixed contact pin 8 is taken in the connector 5, the connecting sleeve 6 and the connector 5 can rotate freely, so that the shape of the attached limb can be adjusted, then the fixed contact pin 8 extends out of the connector 5, the fixed contact pin 8 is inserted into the fixed groove 7, the relative rotation of the connector 5 and the connecting sleeve 6 is limited, the shape of the fixed unit 2 is fixed, a fixed support is formed in the whole coating piece 1, and the limb of a patient is fixed.
In order to be able to control the extension and retraction of the fixing pin 8 on the connection head 5 in a convenient manner. The invention designs the following structure. As shown in fig. 4 and 5, the cavity 9 is formed in the connector 5, the cavity 9 is communicated with the cavity of the cylinder 4, one end of the cavity 9 away from the cylinder 4 is open, and the cavity of the connecting sleeve 6 is communicated with the cavity of the cylinder 4, so that a through channel is formed in the fixed body 3, and when the fixed bodies 3 are connected in series end to end in sequence, the channel is also in a communicating state. The same air pipe 10 is inserted into the channels in the plurality of fixing bodies 3 of the same fixing unit 2, the part of the air pipe 10 positioned in the cavity 9 is provided with an air bag 11, and when the air pipe 10 is inflated, the air bag 11 expands and deforms, so that the end part of the fixing pin 8 is pushed out of the connector 5 and is inserted into the fixing groove 7.
The fixed pin 8 is mounted on the connection head 5 by the following structure. First, as shown in fig. 5, two through holes 12 communicating with the cavity 9 are formed on the connector 5, and a limiting cylinder 13 is fixed at one end of the two through holes 12 located in the connector 5, where the limiting cylinder 13 may be screwed on the through holes 12 or fixed by gluing. The fixed contact pin 8 passes through the through hole 12 and the limiting cylinder 13, and a top plate 14 is fixed at one end of the fixed contact pin 8 extending out of the limiting cylinder 13, when the air bag 11 expands in the cavity 9, the air bag 11 can push the top plate 14, so that the fixed contact pin 8 extends out of the through hole 12. When the air bag 11 is contracted, the fixed contact pin 8 can automatically pull the fixed contact pin 8 into the through hole 12 through the contraction mechanism arranged in the limiting cylinder 13, so that the fixed contact pin 8 is prevented from influencing the relative rotation of the connector 5 and the connecting sleeve 6.
Specifically, as shown in fig. 5, the retracting mechanism of the present invention includes a first magnet 15 fixed in the limiting cylinder 13 and a second magnet 16 fixed on a portion of the fixed pin 8 located in the limiting cylinder 13. Meanwhile, a cylinder cover 17 is arranged at one end of the limiting cylinder 13 far away from the through hole 12, and the fixed contact pin 8 penetrates through the cylinder cover 17. The second magnet 16 is located between the first magnet 15 and the cylinder cover 17, the second magnet 16 repels the first magnet 15, and the fixed pin 8 is pushed into the connector 5 under the action of magnetic force.
As another possible embodiment of the retraction mechanism, the retraction mechanism includes a stop collar fixed on the portion of the fixed pin 8 located in the stop barrel 13, and a micro spring is sleeved on the portion of the fixed pin 8 located between the stop collar and the through hole 12, and the fixed pin 8 is pushed into the connector 5 under the action of the spring. The cylinder cover 17 is arranged at one end of the limiting cylinder 13 far away from the through hole 12, the fixed contact pin 8 passes through the cylinder cover 17, and the cylinder cover 17 can play a limiting role on the limiting ring to prevent the fixed contact pin 8 from completely separating from the through hole 12.
In order to facilitate inflation and deflation of all of the air tubes 10, a hose 18 is provided within the covering 1, as shown in fig. 1, the hose 18 being in simultaneous communication with all of the longitudinal air tubes 10 of all of the transverse air tubes 10, and an air inlet nozzle 19 is provided on the hose 18. The air inlet nozzle 19 is a one-way valve, and all air bags 11 can be inflated by inflating the air inlet nozzle 19 to inflate all air pipes 10.
Several fixing straps can be fixed on the wrapping member 1, and after the wrapping member 1 is wrapped on the limb, the wrapping member 1 can be fastened with the aid of the fixing straps, and then inflated. Or the auxiliary fixing is performed by the fixing belt after the inflation.
When in use, the utility model is characterized in that: firstly, the wrapping member 1 is wrapped on the fractured limb of the patient, and because the fixing members can rotate freely, a plurality of fixing units 2 in the wrapping member 1 can fit the shape of the limb. Then the air intake nozzle 19 inflates the hose 18, so that the air bag 11 in the connector 5 is inflated, the air bag 11 ejects the part of the fixed contact pin 8 out of the connector 5, the fixed contact pin 8 is inserted into the fixed groove 7, the angle between the connector 5 and the connecting sleeve 6 is fixed, and a fixed support which fits the appearance of the limb is formed in the cladding piece 1, and the fixation of the fractured limb of the patient is completed. The auxiliary fixing can be performed again using the fixing band.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.