CN213156337U - Temporary external fixator for the mandible in wartime or field settings - Google Patents
Temporary external fixator for the mandible in wartime or field settings Download PDFInfo
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- CN213156337U CN213156337U CN201820520280.2U CN201820520280U CN213156337U CN 213156337 U CN213156337 U CN 213156337U CN 201820520280 U CN201820520280 U CN 201820520280U CN 213156337 U CN213156337 U CN 213156337U
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Abstract
本实用新型属于医疗器械技术领域，具体涉及战时或野外环境下下颌骨临时外固定支架，包括呈半环状的连杆、凤尾夹和T形工具，连杆后端向上倾斜，连杆后端内侧面设有固定板，固定板外端面上下两端各设有一个槽状盲孔，固定板于槽状盲孔底部设有槽状通孔，固定板外侧面于两个槽状盲孔之间设有卡台，外钉下端面于第一缺口对应位置设有第二缺口，竖杆下端与第一矩形盲孔相匹配，竖杆下端面设有与矩形凸台相匹配的第三矩形盲孔。其目的是：解决现有的下颌骨外固定支架结构缺陷导致的不便于气道管理、固定骨钉必须借助电钻或者手摇钻协助旋入骨质导致的不利于携带、把伤员的舌头用钢丝绳或手术线缝合在伤员的衣服上操作麻烦的问题。
The utility model belongs to the technical field of medical equipment, in particular to a temporary external fixation bracket for the mandible in wartime or field environment, comprising a semi-ring connecting rod, a phoenix tail clip and a T-shaped tool, the rear end of the connecting rod is inclined upward, and the connecting rod The inner side of the rear end is provided with a fixing plate, and the upper and lower ends of the outer end of the fixing plate are respectively provided with a slot-shaped blind hole. The fixing plate is provided with a slot-shaped through hole at the bottom of the slot-shaped blind hole. A clamping table is arranged between the holes, a second notch is arranged on the lower end face of the outer nail at the corresponding position of the first notch, the lower end of the vertical rod is matched with the first rectangular blind hole, and the lower end face of the vertical rod is provided with a second notch matching the rectangular boss. Three rectangular blind holes. Its purpose is: to solve the inconvenient airway management caused by the structural defects of the existing mandibular external fixation bracket, the unfavorable carrying caused by the need to use an electric drill or a hand drill to assist in screwing the fixed bone nail into the bone, and to use a wire rope for the wounded's tongue. Or the troublesome problem of surgical thread stitching on the casualty's clothes.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to temporary external fixation support of mandible under wartime or the open-air environment.
Background
Usually, the wound of oral cavity maxillofacial area accounts for about 10% -20% of the wound of the whole body, the wound of human skeleton caused by traffic accident or other accidents is ubiquitous, wherein the patient of human maxillofacial bone fracture is on the rise trend, the treatment of clinical maxillofacial bone fracture usually adopts incision reduction internal fixation, mainly shows that the peripheral tissue of skeleton is incised first and then internal fixation is carried out in the bone tissue by adopting bone nails or other devices to treat the maxillofacial bone fracture, and the operation may have the following complications: wound surface infection, retention of foreign bodies in the jaw bone, rejection of foreign bodies by human bodies, and particularly, the development of the jaw bone of children in the future can be influenced by internal fixation of children.
When a natural disaster such as wartime, terrorist attack or earthquake and the like occurs, severe maxillofacial injury is easy to occur, and the mandible fracture is accompanied, so that the airway is easy to block; meanwhile, soft tissue injuries from wartime or explosive injuries are severe and generally do not allow for in-line fixation. Therefore, there is a need for a simple external fixation device suitable for operation by health workers, which can rapidly fix and stabilize the mandible fracture and facilitate airway management, and which can perform exact reposition and internal fixation of the mandible after the injured person is delivered to the rear.
Meanwhile, the conventional bone fixing nail still needs to be screwed into the bone by means of an electric drill or a hand drill, but the electric drill and the hand drill have large volumes and heavy weights, are not portable and are not suitable for battlefield environments.
In addition, in order to ensure the smoothness of the respiratory tract of the unconscious wounded person and prevent the wounded person from being blocked by the tongue of the wounded person in the unconscious state, the tongue of the wounded person is generally sewn on the clothes of the wounded person by a steel wire rope or a surgical thread on a battlefield, and the operation is troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: aims to provide a temporary mandible external fixation support in wartime or field environment, which is used for solving the problems that the air passage management is inconvenient, the fixed bone nail is inconvenient to carry and the operation is troublesome because the fixed bone nail is screwed in the bone by the aid of an electric drill or a hand drill, and the tongue of the wounded is sutured on the clothes of the wounded by a steel wire rope or an operation wire, wherein the problems are caused by the structural defects of the existing mandible external fixation support.
In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
a temporary external mandibular fixation bracket in wartime or field environment comprises a semicircular connecting rod, a phoenix tail clamp and a T-shaped tool, wherein the rear end of the connecting rod inclines upwards, a fixing plate is arranged on the inner side surface of the rear end of the connecting rod, groove-shaped blind holes are respectively arranged at the upper end and the lower end of the outer end surface of the fixing plate, a groove-shaped through hole is arranged at the bottom of each groove-shaped blind hole in the fixing plate, a clamping table is arranged on the outer side surface of the fixing plate between the two groove-shaped blind holes and comprises a first convex column and a second convex column positioned on the outer side of the first convex column, the diameter of the second convex column is larger than that of the first convex column, a first threaded hole is respectively arranged on each of two sides of one groove-shaped blind hole in the outer side surface of the fixing plate, a clamping seat is arranged between the connecting rod and the fixing plate, a, the clamping seat is characterized in that a plurality of second threaded holes are formed in two sides of the first groove on the outer side surface of the clamping seat, a stepped hole is further formed in the upper end of the outer side surface of the clamping seat at a position corresponding to the first threaded hole on the left side of the groove-shaped blind hole, a first fixing bolt is arranged in the stepped hole, an arc-shaped pressing sheet is arranged on the outer side surface of the clamping seat, a through hole is formed in the outer side surface of the arc-shaped pressing sheet at a position corresponding to the second threaded hole, a second fixing bolt is arranged in the through hole, the phoenix tail clamp comprises an inverted U-shaped clamp body and clamping rods which are arranged on the upper side and the lower side of the clamp body, the two clamping rods are hinged with the rear end of the clamp body, the clamp body comprises an upper sheet, a lower sheet and a support sheet, an arc-shaped needle is respectively arranged on the left side and the right side of the rear end of the lower sheet, the connecting rod is provided with a second groove matched with the steel wire rope at the lower part of the third blind hole, a fixing bone nail is arranged in the groove-shaped through hole and comprises an inner nail and an outer nail, the lower part of the inner nail is a cylindrical part, the lower part of the cylindrical part is provided with a first external thread, the lower end surface of the cylindrical part is provided with a conical part, the upper end surface of the cylindrical part is provided with a rectangular part, the upper end surface of the rectangular part is provided with a rectangular boss, the lower end surface of the inner nail is provided with a first notch, the first notch penetrates through the cylindrical part and the conical part to reach the lower part of the rectangular part, the upper end surface of the outer nail is provided with a circular boss, the upper end surface of the circular boss is provided with a first rectangular blind hole, the bottom of the outer nail is provided with a second rectangular blind hole matched with the rectangular part, the lower end surface of the outer nail is provided with a, the outer nail lower part is equipped with second external screw thread, the terminal surface is equipped with the second breach in first breach corresponding position under the outer nail, T shape instrument includes horizontal pole and montant, montant lower extreme and first rectangle blind hole phase-match, the terminal surface is equipped with the third rectangle blind hole with rectangle boss assorted under the montant.
Further limit, sponge cushions are arranged on the lower end face of the upper piece and the upper end face of the lower piece. The structural design provides a buffer between the tongue and the phoenix tail clamp, and the phoenix tail clamp is prevented from hurting the tongue.
Further inject, slot-like blind hole bottom evenly is equipped with a plurality of first blind holes in the slot-like through-hole outside, outer nail is equipped with the locating washer in the cover of slot-like blind hole, the locating washer is close to fixed plate one side and is equipped with a plurality of and first blind hole assorted third projection. Such structural design, when using, through the mode in the first blind hole of third projection card income, can fix a position the position of outer nail, prevent that outer nail from taking place to slide in flute form blind hole.
Further inject, the rectangle boss lateral wall is equipped with the third screw hole, be equipped with the bulb plunger in the third screw hole, the second blind hole inner wall of montant lower extreme is equipped with the hemisphere hole in spheroid plunger corresponding position. Such structural design, when interior nail is located outer nail, when inserting the montant lower extreme in the first rectangle blind hole, the bulb portion card of bulb plunger can go into in the hemisphere hole, when interior nail was pulled out outer nail like this, can directly take out interior nail through T shape instrument, and it is more convenient to use.
Further inject, outer nail top still is equipped with the rubber block, the terminal surface is equipped with the lug with first rectangle blind hole assorted under the rubber block. By adopting the structural design, after the outer nail is fixed, the rubber cap can be arranged on the outer nail to plug the hollow structure of the outer nail.
It is further defined that the first externally threaded portion of the inner nail has a length dimension that is less than a length dimension of the second externally threaded portion of the outer nail. Such structural design prescribes a limit to the length dimension of the first external screw thread part of interior nail, avoids because of the first external screw thread part length overlength of interior nail, the awkward problem that causes.
Further limit, the connecting rod lateral wall also is equipped with the third blind hole with the ball phase-match. By means of the structural design, the tongue of the wounded can be fixed in different directions through the matching of the third blind holes and the round balls, and the practicability is higher.
Further limit, the upper end surface of the lower sheet is provided with a second blind hole at the corresponding position of the arc. Due to the structural design, after the arc-shaped needle pierces the tongue of the wounded, the arc-shaped needle pierces the second blind hole to position the arc-shaped needle, so that the fixation stability is stronger; meanwhile, the blind holes are adopted instead of the through holes, so that the injury to tissues under the tongue of an injured person caused by the arc-shaped needle after penetrating the tongue can be avoided.
The utility model also discloses an application method of foretell mandible temporarily external fixation support, including following step:
1) the inner nail is placed inside the outer nail, the first notch corresponds to the second notch, then the lower end of the vertical rod of the T-shaped tool is inserted into the first rectangular blind hole, the ball plunger is clamped into the hemispherical hole, and then the outer nail is sleeved with the positioning washer;
2) the fixing plate is attached to the rear end of the mandible to be fixed, a proper position is selected, the fixing bone nail penetrating through the positioning washer is inserted into the groove-shaped through hole, and the third convex column is clamped in the corresponding first blind hole;
3) pressing the T-shaped tool towards the lower jaw bone direction, and rotating the T-shaped tool to enable the inner nail to attack the lower jaw bone; at the moment, the diameter size of the inner nail is smaller than that of the outer nail, and compared with the situation that the outer nail directly attacks the mandible, the attacking of the inner nail is more labor-saving;
4) continuing to rotate the T-shaped tool until the lower jaw is tapped by the outer nail; at the moment, because the mandible is tapped with a small hole by the inner nail, the tapping of the outer nail is more labor-saving;
5) after the outer nail is driven into the mandible for a certain distance, the T-shaped tool is rotated reversely to enable the inner nail to be pulled out of the mandible, then the T-shaped tool is pulled out, and the inner nail is driven to be pulled out of the outer nail through the clamping effect between the ball plunger and the hemispherical hole;
6) inserting the T-shaped tool into the first rectangular blind hole again, then rotating the T-shaped tool forward to enable the outer nail to continue to attack the mandible until the lower end face of the circular boss presses the positioning washer into the groove-shaped blind hole, and then taking down the T-shaped tool;
7) covering a rubber cap on the first rectangular blind hole;
8) another fixing bone nail penetrated with a positioning washer is penetrated into the other groove-shaped through hole of the fixing plate, and the steps 3) to 7) are repeated;
9) another fixing plate is attached to the rear end of the mandible on the other side of the wounded, and the steps 1) to 8) are repeated until the external nails are installed at all required places;
10) the clamping seat is hung on the clamping table by utilizing the matching of the clamping groove and the clamping table;
11) a first fixing bolt is arranged in the stepped hole and screwed into a first threaded hole on the left side of the groove-shaped blind hole to complete the fixation between the fixing seat and the fixing plate;
12) installing an arc-shaped pressing piece on the clamping seat, then penetrating a connecting rod between the clamping seat and the arc-shaped pressing piece, and then screwing a second fixing bolt;
13) when the tongue of the wounded person needs to be fixed, the mouth of the wounded person is opened, the tongue is pulled out, the two clamping rods at the front end of the phoenix tail clamp are pinched, the front end of the phoenix tail clamp is opened, then the arc-shaped needle is inserted into the tongue of the wounded person, the phoenix tail clamp is released, the steel wire rope is pulled, and the corresponding ball is clamped into the third blind hole;
14) when needs are managed wounded's air flue, pulling wire rope, make the ball break away from the third blind hole, unscrew the first fixing bolt in the shoulder hole again, make first fixing bolt break away from and be located the left first screw hole of trough-shaped blind hole, then it is rotatory upwards to center on the ka tai the connecting rod, can give way out the position of managing the air flue, then twist first fixing bolt into the first screw hole that is located trough-shaped blind hole right side again, can make two fixed plates fix again, go into the third blind hole to the ball card again at last.
By adopting the technical scheme, the utility model has the advantages that through the matching of the clamping grooves on the fixed seat and the clamping tables on the fixed plates and the matching of the first fixing screws and the two first threaded holes on each fixed plate, the connecting rod can rotate to the front of the face from the jaw position of the wounded, the position for air passage management is exposed, and the air passage management is convenient for the wounded; the fixed fixing nail is formed by the inner nail and the outer nail, the outer nail is driven into the mandible of the wounded in a two-stage driving mode, the driving is more labor-saving, the outer nail can be driven into the mandible of the wounded without the help of an electric drill or a hand drill, meanwhile, after the driving of the outer nail is finished, the inner nail is taken out, the next wounded can be recycled, the material transportation pressure is reduced, and the secondary damage to the wounded caused by the fact that the inner nail is driven too deeply can be avoided; the tongue of the wounded is punctured through the last arc of phoenix tail clamp to fix wire rope on the connecting rod through the ball, for the direct method of sewing up the tongue on the clothes, it is more convenient, and also the connecting rod is fixed on the wounded mandible in addition, can be along with rocking and synchronous motion of wounded's head, avoided the wounded when removing, when the head takes place to shake, the problem that the tongue was strained.
Drawings
The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural view of an embodiment of a temporary external mandibular fixation bracket according to the present invention in wartime or in a field environment;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic structural view of a fixing plate in an embodiment of a temporary external mandibular fixation bracket according to the present invention in wartime or in a field environment;
FIG. 4 is a first schematic structural view of a fixing base in an embodiment of a temporary external mandibular fixation bracket according to the present invention in wartime or in a field environment;
FIG. 5 is a schematic structural view of a second fixing base in an embodiment of a temporary external mandibular fixation bracket according to the present invention in wartime or in a field environment;
FIG. 6 is a schematic structural view of a fixing bone nail in an embodiment of a temporary external mandibular fixation bracket according to the present invention in wartime or in a field environment;
FIG. 7 is a schematic structural view of an inner nail in an embodiment of a temporary external mandibular fixation bracket according to the present invention in wartime or in a field environment;
FIG. 8 is a schematic structural view of an external nail in an embodiment of a temporary external mandibular fixation bracket according to the present invention in wartime or in a field environment;
FIG. 9 is a schematic structural view of an embodiment of a temporary external mandibular fixation bracket according to the present invention, wherein the external mandible has a rubber cap;
FIG. 10 is a schematic structural view of a positioning washer in an embodiment of a temporary external mandibular fixation brace used in wartime or in field environments according to the present invention;
FIG. 11 is a schematic structural view of a T-shaped tool in an embodiment of a temporary external mandibular fixation bracket according to the present invention in wartime or in a field environment;
the main element symbols are as follows:
the connecting rod comprises a connecting rod 1, a fixing plate 2, a groove-shaped blind hole 21, a groove-shaped through hole 22, a first blind hole 23, a first convex column 241, a second convex column 242, a first threaded hole 25, a clamping seat 3, a clamping groove 31, a first groove 32, a second threaded hole 33, a stepped hole 34, an arc-shaped pressing sheet 4, a clamping body 5, an upper sheet 501, a lower sheet 502, a supporting sheet 503, a clamping rod 51, an arc-shaped needle 52, a second blind hole 53, a circular ring 54, a steel wire rope 55, a round ball 56, an inner nail 6, a cylindrical part 61, a first external thread 610, a conical part 62, a rectangular part 620, a rectangular boss 63, a first notch 60, an outer nail 7, a second notch 70, a circular boss 71, a first rectangular blind hole 711, a second rectangular blind hole 712, a second external thread 72, a rubber cap 73, a cross rod 81, a vertical rod 82, a third threaded hole 830, a.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 11, the temporary external mandibular fixation bracket of the present invention comprises a semi-annular connecting rod 1, a phoenix tail clamp and a T-shaped tool, wherein the rear end of the connecting rod 1 is inclined upward, the inner side surface of the rear end of the connecting rod 1 is provided with a fixing plate 2, the upper and lower ends of the outer end surface of the fixing plate 2 are respectively provided with a groove-shaped blind hole 21, the fixing plate 2 is provided with a groove-shaped through hole 22 at the bottom of the groove-shaped blind hole 21, a clamping platform is arranged on the outer side surface of the fixing plate 2 between the two groove-shaped blind holes 21 and comprises a first convex column 241 and a second convex column 242 arranged outside the first convex column 241, the diameter of the second convex column 242 is larger than that of the first convex column 241, the outer side surface of the fixing plate 2 is provided with a first threaded hole 25 on each of the two sides of one groove-shaped blind hole 21, a clamping seat 3 is arranged, the outer side surface of the clamping seat 3 is provided with a first groove 32 matched with the connecting rod 1, the outer side surface of the clamping seat 3 is provided with a plurality of second threaded holes 33 on two sides of the first groove 32, the upper end of the outer side surface of the clamping seat 3 is also provided with a stepped hole 34 at a position corresponding to a first threaded hole 25 positioned on the left side of a groove-shaped blind hole 21, a first fixing bolt is arranged in the stepped hole 34, the outer side surface of the clamping seat 3 is provided with an arc-shaped pressing sheet 4, the outer side surface of the arc-shaped pressing sheet 4 is provided with a through hole at a position corresponding to the second threaded hole 33, a second fixing bolt is arranged in the through hole, the phoenix tail clamp comprises an inverted U-shaped clamp body 5 and clamping rods 51 positioned on the upper side and the lower side of the clamp body 5, the two clamping rods 51 are hinged with the rear end of the clamp body 5, the clamp body 5 comprises an upper sheet 501, a lower sheet 502 and a, the front end of the steel wire rope 55 is provided with a plurality of round balls 56, one side of the front end surface of the connecting rod 1 is provided with a third blind hole matched with the round balls 56, the lower part of the third blind hole of the connecting rod 1 is provided with a second groove matched with the steel wire rope, the groove-shaped through hole 22 is internally provided with a fixing bone nail, the fixing bone nail comprises an inner nail 6 and an outer nail 7, the lower part of the inner nail 6 is a cylindrical part 61, the lower part of the cylindrical part 61 is provided with a first external thread 610, the lower end surface of the cylindrical part 61 is provided with a conical part 62, the upper end surface of the cylindrical part 61 is provided with a rectangular part 620, the upper end surface of the rectangular part 620 is provided with a rectangular boss 63, the lower end surface of the inner nail 6 is provided with a first notch 60, the first notch 60 penetrates through the cylindrical part 61 and the conical part 62 to the lower part of the rectangular part 620, the upper end surface of the outer nail 7 is provided with a round, outer nail 7 is equipped with the through-hole with cylinder portion 61 assorted at second rectangle blind hole 712 lower terminal surface, and outer nail 7 bottom is coniform, and outer nail 7 lower part is equipped with second external screw thread 72, and outer nail 7 lower terminal surface is equipped with second breach 70 in first breach 60 corresponding position, and T shape instrument includes horizontal pole 81 and montant 82, montant 82 lower extreme and first rectangle blind hole 711 phase-match, montant 82 lower terminal surface be equipped with rectangle boss 63 assorted third rectangle blind hole.
Preferably, sponge pads are arranged on the lower end face of the upper sheet 501 and the upper end face of the lower sheet 502. The structural design provides a buffer between the tongue and the phoenix tail clamp, and the phoenix tail clamp is prevented from hurting the tongue.
Preferably, the bottom of the groove-shaped blind hole 21 is uniformly provided with a plurality of first blind holes 23 outside the groove-shaped through hole 22, the outer nail 7 is sleeved with a positioning gasket 9 inside the groove-shaped blind hole 21, and the side surface of the positioning gasket 9 close to one side of the fixing plate 2 is provided with a plurality of third convex columns 91 matched with the first blind holes 23. Due to the structural design, when the outer nail 7 is used, the position of the outer nail 7 can be positioned in a mode that the third convex column 91 is clamped into the first blind hole 23, and the outer nail 7 is prevented from sliding in the groove-shaped blind hole 21.
Preferably, the side wall of the rectangular boss 63 is provided with a third threaded hole 830, a ball plunger is arranged in the third threaded hole, and a hemispherical hole is formed in the inner wall of the second blind hole at the lower end of the vertical rod 82 at the position corresponding to the ball plunger. Such structural design, when interior nail 6 is located outer nail 7, when inserting montant 82 lower extreme in first rectangle blind hole 711, the bulb part card of bulb plunger can be gone into in the hemisphere hole, and when extracting outer nail 7 to interior nail 6 like this, can directly take out interior nail 6 through T shape instrument, and it is more convenient to use.
Preferably, a rubber cap 73 is further arranged above the outer nail 7, and a bump matched with the first rectangular blind hole 711 is arranged on the lower end face of the rubber cap 73. Due to the structural design, after the outer nail 7 is fixed, the rubber cap 73 can be arranged on the outer nail 7, and the hollow structure of the outer nail 7 is blocked.
Preferably, the length dimension of the first external thread 610 portion of the inner nail 6 is smaller than the length dimension of the second external thread 72 portion of the outer nail 7. Such structural design limits the length dimension of the first external thread 610 part of the inner nail 6, and avoids the problem of inconvenient use caused by overlong length of the first external thread 610 part of the inner nail 6.
Preferably, the side wall of the connecting rod 1 is also provided with a third blind hole matched with the round ball 56. Due to the structural design, the tongue of the wounded can be fixed in different directions through the matching of the third blind holes and the round ball 56, and the practicability is higher.
Preferably, the upper end surface of the lower plate 502 is provided with a second blind hole 53 at a position corresponding to the arc-shaped needle 52. Due to the structural design, after the arc-shaped needle 52 pierces the tongue of the wounded, the arc-shaped needle 52 is pierced in the second blind hole 53 to position the arc-shaped needle 52, so that the fixation stability is stronger; meanwhile, the blind holes are adopted instead of the through holes, so that the injury to tissues under the tongue of the wounded caused by the arc-shaped needle 52 penetrating the tongue can be avoided.
The utility model also discloses an application method of foretell mandible temporarily external fixation support, including following step:
1) the inner nail 6 is placed in the outer nail 7, the first notch 60 corresponds to the second notch 70, then the lower end of a vertical rod 82 of the T-shaped tool is inserted into the first rectangular blind hole 711, the ball plunger is clamped into the hemispherical hole, and then the positioning washer 9 is sleeved on the outer nail 7;
2) the fixing plate 2 is attached to the rear end of the mandible to be fixed, a proper position is selected, and the fixing bone nail penetrated by the positioning washer 9 is inserted into the groove-shaped through hole 22, so that the third convex column 91 is clamped in the corresponding first blind hole 23;
3) the T-shaped tool is pressed towards the lower jaw bone direction, and the T-shaped tool is rotated to enable the inner nail 6 to be driven into the lower jaw bone; at the moment, the diameter size of the inner nail 6 is smaller than that of the outer nail 7, and compared with the situation that the outer nail 7 directly attacks the mandible, the attacking of the inner nail 6 is more labor-saving;
4) continuing to rotate the T-shaped tool until the outer nail 7 attacks the mandible; at the moment, because the mandible is tapped with a small hole by the inner nail 6, the tapping of the outer nail 7 is more labor-saving;
5) after the outer nail 7 is driven into the mandible for a certain distance, the T-shaped tool is rotated reversely to enable the inner nail 6 to be pulled out of the mandible, then the T-shaped tool is pulled out, and the inner nail 6 is driven to be pulled out of the outer nail 7 through the clamping effect between the ball plunger and the hemispherical hole;
6) the T-shaped tool is inserted into the first rectangular blind hole 711 again, then the T-shaped tool is rotated in the forward direction, the outer nail 7 is driven to continue to attack the mandible until the lower end face of the circular boss 71 presses the positioning gasket 9 into the groove-shaped blind hole 21, and then the T-shaped tool is taken down;
7) covering the first rectangular blind hole 711 with a rubber cap 73;
8) another fixing bone nail penetrated with a positioning washer 9 is inserted into another groove-shaped through hole 22 of the fixing plate 2, and the steps 3) to 7) are repeated;
9) another fixing plate 2 is attached to the rear end of the mandible on the other side of the wounded, and the steps 1) to 8) are repeated until the outer nails 7 are installed at all required places;
10) the clamping seat 3 is hung on the clamping table by utilizing the matching of the clamping groove 31 and the clamping table;
11) a first fixing bolt is arranged in the stepped hole 34 and screwed into the first threaded hole 25 positioned on the left side of the groove-shaped blind hole 21, so that the fixing between the fixing seat 3 and the fixing plate 2 is completed;
12) an arc-shaped pressing sheet 4 is arranged on the clamping seat 3, then the connecting rod 1 is inserted between the clamping seat 3 and the arc-shaped pressing sheet 4, and then a second fixing bolt is screwed down;
13) when the tongue of the wounded is required to be fixed, the mouth of the wounded is opened, the tongue is pulled out, the two clamping rods 51 at the front end of the phoenix tail clamp are pinched, the front end of the phoenix tail clamp is opened, then the arc-shaped needle 52 is inserted into the tongue of the wounded, the phoenix tail clamp is released, the steel wire rope 55 is pulled, and the corresponding round ball 56 is clamped into the third blind hole;
14) when needs are managed wounded's air flue, pulling wire rope 55, make ball 56 break away from the third blind hole, unscrew the first fixing bolt in 34 shoulder hole again, make first fixing bolt break away from and be located the left first screw hole 25 of slot-like blind hole 21, then it is rotatory upwards around the ka tai to connecting rod 1, can give up the position of managing the air flue, then twist first fixing bolt into the first screw hole 25 that is located slot-like blind hole 21 right side again, can make two fixed plates 2 fixed again, at last the ball 56 card is gone into the third blind hole again.
In the embodiment, through the matching of the clamping groove 31 on the fixed seat 3 and the clamping table on the fixed plate 2 and the matching of the first fixing screw and the two first threaded holes 25 on each fixed plate 2, the connecting rod 1 can rotate to the front of the face from the jaw position of the wounded to expose the position for airway management, so that the wounded can be conveniently managed by an airway; the fixed fixing nail is formed by the inner nail 6 and the outer nail 7, the outer nail 7 is attacked into the mandible of the wounded in a two-stage attacking mode, the attacking is more labor-saving, the outer nail 7 can be placed into the mandible of the wounded without the help of an electric drill or a hand drill, meanwhile, after the outer nail 7 is placed, the inner nail 6 is taken out, the next wounded can be recycled, the material transportation pressure is reduced, and the secondary injury to the wounded caused by the fact that the inner nail 6 is attacked to be too deep can be avoided; the tongue of the wounded is punctured through the arc-shaped needle 52 on the phoenix tail clamp, the steel wire rope 55 is fixed on the connecting rod 1 through the ball 56, and the method for directly suturing the tongue on clothes is more convenient, and the connecting rod 1 is fixed on the mandible of the wounded, so that the synchronous movement can be realized along with the shaking of the head of the wounded, and the problem that the tongue is pulled when the head of the wounded shakes when the wounded moves is avoided.
It is right above that the utility model provides a temporary external fixation support of mandible has carried out the detailed introduction under wartime or the field environment. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820520280.2U CN213156337U (en) | 2018-04-13 | 2018-04-13 | Temporary external fixator for the mandible in wartime or field settings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820520280.2U CN213156337U (en) | 2018-04-13 | 2018-04-13 | Temporary external fixator for the mandible in wartime or field settings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213156337U true CN213156337U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820520280.2U Active CN213156337U (en) | 2018-04-13 | 2018-04-13 | Temporary external fixator for the mandible in wartime or field settings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213156337U (en) |
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2018
- 2018-04-13 CN CN201820520280.2U patent/CN213156337U/en active Active
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