CN217723659U - Reduction forceps for proximal femoral fracture - Google Patents

Reduction forceps for proximal femoral fracture Download PDF

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Publication number
CN217723659U
CN217723659U CN202221325652.9U CN202221325652U CN217723659U CN 217723659 U CN217723659 U CN 217723659U CN 202221325652 U CN202221325652 U CN 202221325652U CN 217723659 U CN217723659 U CN 217723659U
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China
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handle
forceps
clamping
end part
sleeve
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CN202221325652.9U
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Inventor
倘艳锋
郭超韡
杨玉霞
曹向阳
刘又文
陈柯
王庆丰
周水红
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Luoyang Orthopedic Traumatological Hospital of Henan Orthopedic Hospital
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Luoyang Orthopedic Traumatological Hospital of Henan Orthopedic Hospital
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Abstract

A reduction forceps for proximal femoral fracture is characterized in that the end part of a first forceps handle clamping part extends to one side, the end part of the first forceps handle clamping part is provided with a sleeve, and the end part of a second forceps handle clamping part is provided with a long hole; the sleeve pipe has been seted up the spout, and the intraductal slip that slides of sleeve sets up the slide bar, and the one end of slide bar sets up the round pin, and the round pin slides along with the slide bar and sets up in the spout and cartridge slides simultaneously and set up in the slot hole, and the fixed rod tip sets up the structure that matches the joint with the pilot pin, and the plane that this structure belongs to is perpendicular with first pincers handle, second pincers handle place plane. The fixed rod can be detachably arranged on the reset clamp and can be replaced, thereby enlarging the application range of the utility model; the clamping parts are positioned on the same side of the reduction forceps, so that the observation and the operation in the operation are convenient.

Description

Reduction forceps for proximal femoral fracture
Technical Field
The utility model belongs to the technical field of bone surgery apparatus, concretely relates to thighbone near-end fracture pincers that reset.
Background
Intertrochanteric femoral fractures occur at a high rate, accounting for about 50% of hip fractures. The degree of fracture injury is determined by the high and low energy of injury and local bone conditions, the fracture of middle-aged patients is mostly caused by high energy injury, and the fracture of old patients is mostly caused by low energy injury, and osteoporosis is often accompanied. Because of the anatomical characteristics of the proximal femur, after the femur is fractured, the proximal femur is more inverted and displaced, the distal femur is moved upwards, the angle of the cervical shaft is reduced, and the medial bone is split, compressed or crushed. In the reduction process in the operation, the femur often has varus deformity, even if partial good reduction is obtained in the operation, the femur is difficult to support due to osteoporosis and crushing of medial fracture, and the hip varus deformity is easy to occur in early weight bearing activities. At present, intramedullary nail is used for fixing the femoral intertrochanteric fracture in a golden standard, the center is fixed, the stability is good, the mechanical stability of fracture ends can be recovered, and the fracture healing is facilitated. However, since intertrochanteric fracture of femur is often seen in elderly patients, severe osteoporosis exists, internal fixation failure due to cutting of the helical blade at the neck of the femoral head is easy to occur, and particularly when hip varus deformity exists, the risk of cutting of the helical blade in the head and neck of the femur is higher. Therefore, it is especially important to correct the hip varus deformity in the reduction of the intertrochanteric fracture, and the utility model discloses based on the experience and the experience design of inventor in clinical work, can correct the hip varus deformity according to the condition in the art.
Intramedullary nail fixation for intertrochanteric fracture is a gold standard, is accepted by orthopedists at present, and is simpler and more convenient to operate along with the improvement of a perspective tool and an intramedullary nail instrument. However, because there is a 130 ° or so shaft angle at the proximal end of the femur, the shaft angle is reduced as a result of the fracture end shifting after fracture, and the medial cortical bone compresses or splinters. Part of intertrochanteric fracture lines of the femur pass through the tip of the greater trochanter and reach the nail inlet channel of the intramedullary nail, and the diameter of the intramedullary nail is increased gradually in the process of implanting the intramedullary nail, so that the proximal end of the intramedullary nail is extruded to cause hip inversion. Generally, when an intramedullary nail is placed, a nail track of the intramedullary nail is formed, and at the moment, once the hip varus deformity is formed, the correction is difficult. The utility model aims at maintaining the stability of the fracture end before implanting the intramedullary nail, smoothly and thoroughly reaming the marrow in the process of proximal reaming and avoiding the wedge effect caused by extrusion when the nail is inserted.
In summary, after proximal femur fracture, the fracture area can be varied, and the movement position of the fracture part relative to the original position is uncertain, before using intramedullary nail to fix femur, the fracture part needs to be reduced and then driven into intramedullary nail for fixing. However, it is difficult to reduce the fractured part due to the above reasons, and it is difficult to maintain the correct position after reduction. At present, the existing fracture reduction tool is not specially used in the field of intertrochanteric fracture, and proper tools are not used for holding reduction due to the anatomical specificity of the proximal femur. The utility model discloses according to inventor's working experience summary of many years, utilize instrument wicresoft to reset to it is stable to continue to keep the fracture end through going into intramedullary nail in-process, does not influence the entering of intramedullary nail. The utility model discloses mainly in order to correct the hip enstrophe deformity that probably exists in the art, with the risk reduction of postoperative internal fixation inefficacy.
SUMMERY OF THE UTILITY MODEL
In order to avoid hip varus deformity caused by wedge effect in the process of nailing in femoral marrow, the utility model provides a femoral proximal fracture reduction forceps.
The utility model aims at adopting the following technical scheme to realize. According to the reduction forceps for the proximal femoral fracture provided by the utility model, the reduction forceps comprises a first forceps handle and a second forceps handle, the first forceps handle and the second forceps handle are hinged with each other, the two forceps handles are bounded by a hinged position, one side of the two forceps handles is a holding part, and the other side of the two forceps handles is a clamping part; the end part of the first clamp handle clamping part extends towards one side, the end part of the first clamp handle clamping part is provided with a sleeve, the sleeve extends towards two sides, the extending direction is parallel to the extending direction of the end part of the first clamp handle clamping part, the end part of the second clamp handle clamping part is provided with a long hole, and the long hole extends along the length direction of the second clamp handle; a sliding groove is formed in the position, close to the end part of the second pliers handle, of the sleeve, the opening of the sliding groove faces the second pliers handle, a sliding rod is arranged in the sleeve in a sliding mode, a pin is arranged at one end of the sliding rod, the pin is arranged in the sliding groove along with the sliding rod in a sliding mode and is arranged in the long hole in a plug-in and sliding mode, the end part, far away from the second pliers handle, of the sleeve is detachably provided with a fixing rod, and the extending direction of the fixing rod is the same as the extending direction of the end part of the clamping part of the first pliers handle; the end part of the fixed rod far away from the first forceps handle is provided with a structure which is matched and clamped with the femur, and the plane of the structure is vertical to the plane of the first forceps handle and the plane of the second forceps handle.
The technical scheme has the advantages that:
1. the utility model discloses a dead lever demountable installation can change according to femoral fracture's particular case on the pincers that reset, has enlarged the utility model discloses an application range.
2. The clamping part of the utility model is positioned at the same side of the reduction forceps, which is convenient for observation and operation in the operation.
Furthermore, the first pincers handle is held the portion and is set up the arch, and the arch is close to articulated position, and the second pincers handle is held the portion and is wholly buckled to first pincers handle.
The technical scheme has the advantages that: enabling the operator to grip the device and thereby firmly clamp the fractured femur.
Furthermore, a clamping strip is hinged to the end part of the first forceps handle holding part, and the rotating plane of the clamping strip and the rotating planes of the two forceps handles are on the same plane; a plurality of clamping teeth are arranged on the inner side surface of each clamping strip, the surface of each clamping tooth facing to the hinged position of each clamping tooth is perpendicular to the clamping strips, and the other surface of each clamping tooth is obliquely arranged; the tip that the second pincers handle was held the portion sets up a latch, and the latch on the second pincers handle inclines towards the direction of keeping away from first pincers handle.
The technical scheme has the advantages that: after the clamping teeth are used for clamping, even if an operator does not clamp by force, the femur can be clamped, and the physical power of the operator is saved.
Furthermore, a first elastic sheet is arranged on the inner side of the first clamp handle holding part and is fixed on the first clamp handle through a screw, and the position of the screw is close to the end part of the first clamp handle holding part; a second elastic sheet is arranged on the inner side of the second forceps handle holding part and is fixed on the second forceps handle through a screw, and the position of the screw is close to the end part of the second forceps handle holding part; the other end of the first elastic sheet and the other end of the second elastic sheet are close to each other and clamped at the end parts.
The technical scheme has the advantages that: the latch on the first forceps handle and the latch on the first forceps handle can be firmly clamped.
Furthermore, the end face of the other end of the sliding rod is provided with anti-skidding teeth.
The technical scheme has the advantages that: prevent that the tip of slide bar from skidding on the thighbone, realize firmly pressing from both sides tight thighbone.
Furthermore, an installation block is arranged at the end part of the sleeve far away from the first clamp handle, an insertion hole is arranged on the installation block in a penetrating manner, the extending direction of the insertion hole is parallel to the extending direction of the sleeve, a threaded hole perpendicular to the insertion hole is arranged on the installation block, the threaded hole is in threaded connection with a screw, and a handle convenient to operate is arranged at the outer end part of the screw; and a fixing rod is inserted into the insertion hole.
The technical scheme has the advantages that: the dead lever can be conveniently replaced, and the application range of the utility model is enlarged.
Furthermore, the end part of the fixed rod is provided with a large hook or a bent hook structure or a large hook structure.
The technical scheme has the advantages that: according to the position of the femur, the fixing rod is replaced, so that the corresponding femur part can be conveniently clamped.
Furthermore, the big hook is arc-shaped, the tail end of the big hook is bent inwards, the included angle between the tangent line at the middle position of the big hook and the fixed rod is alpha, the value of the alpha is 50 degrees, the distance between the tail end of the big hook and the fixed rod is d, and the value of the d is 2-5 cm.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are specifically illustrated below, and the detailed description is given in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic view of an embodiment of a reduction forceps for proximal femoral fracture of the present invention;
FIGS. 2a, 2b, 2c, 2d, 2e are partial views at A in FIG. 1;
FIG. 3 is a cross-sectional view of the sleeve device;
FIG. 4 is a schematic view of intramedullary nail installation;
FIG. 5a is a schematic view of a femoral fracture;
FIG. 5b is another schematic view of a femoral fracture;
FIG. 5c is another schematic view of a femoral fracture;
FIG. 5d is another schematic view of a femoral fracture;
FIG. 5e is another schematic view of a femoral fracture;
FIG. 5f-1 is another schematic view of a femoral fracture;
FIG. 5f-2 is a left side view of FIG. 5 f-1;
FIG. 6a is a schematic view of the reset clamp of FIG. 5 a;
fig. 6b is a schematic view of the reset clamp of fig. 5f-1 and 5 f-2.
[ reference numerals ]
101-first forceps handle, 10101-bulge, 102-second forceps handle, 10201-long hole, 103-first elastic sheet, 104-second elastic sheet, 105-clamping strip, 106-sleeve, 10601-sliding groove, 107-sliding rod, 10701-pin, 10702-anti-sliding tooth, 108-mounting block, 109-screw, 110-fixing rod, 201-sleeve, 202-positioning pin, 20201-handle, 3-femur, 301-femoral head, 302-crack, 303-pinhole, 304-lesser trochanter, 305-greater trochanter, 306-femoral neck.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment of the reduction forceps for proximal femur fracture of the present invention, as shown in fig. 1, fig. 2a and fig. 3, comprises reduction forceps and a sleeve device.
The overall shape of the reduction forceps is gun-shaped and comprises a first forceps handle 101 and a second forceps handle 102, wherein the first forceps handle 101 and the second forceps handle 102 are hinged with each other, the two forceps handles are bounded by the hinged position, and one side of each forceps handle is a hand holding part while the other side of each forceps handle is a clamping part. First pincers handle 101 is held the portion and is set up protruding 10101, and protruding 10101 is close to the articulated position, and second pincers handle 101 is held the portion and is wholly buckled to first pincers handle 101, and the operator can firmly hold this pincers that reset when using this pincers that reset, prevents to drop. The end of the first handle 101 gripping portion extends to one side. An elongated hole 10201 is formed at an end of the fastening portion of the second handle 102, and the elongated hole 10201 extends in a longitudinal direction of the second handle 102.
The end part of the grip part of the first forceps handle 101 is hinged with a clamping strip 105, and the rotating plane of the clamping strip 105 and the rotating planes of the two forceps handles are on the same plane. A plurality of latch teeth are arranged on the inner side surface of the latch bar 105, the surface of each latch tooth facing to the hinge position of the latch tooth is perpendicular to the latch bar 105, and the other surface is obliquely arranged. The end of the grip portion of the second jaw 102 is provided with a latch which is inclined away from the first jaw 101. When the reset pliers are used, the clamping teeth on the second pliers handle 102 are clamped between two adjacent clamping teeth on the clamping strip 105, the two pliers handles are tightly held, the clamping teeth on the second pliers handle 102 approach to the first pliers handle 101 along the clamping teeth on the clamping strip 105, the reset pliers stop being tightly held, the clamping teeth on the second pliers handle 102 are clamped between the two adjacent clamping teeth on the clamping strip 105, so that the clamping parts of the two pliers handles can be clamped, and if the clamping is to be relieved, the clamping strip 105 is rotated outwards to separate the clamping strip 105 from the clamping teeth on the second pliers handle.
The first elastic sheet 103 is arranged on the inner side of the hand-held part of the first clamp handle 101, the first elastic sheet 103 is fixed on the first clamp handle 101 through a screw, and the position of the screw is close to the end part of the hand-held part of the first clamp handle. The inner side of the hand-held part of the second forceps handle 102 is provided with a second elastic sheet 104, the second elastic sheet 104 is fixed on the second forceps handle through a screw, and the position of the screw is close to the end part of the hand-held part of the second forceps handle. The other end of the first elastic sheet 103 and the other end of the second elastic sheet 104 are close to each other and clamped with each other at the ends. When the reduction forceps are gripped, under the elastic action of the first elastic sheet 103 and the second elastic sheet 104, the first forceps handle 101 and the second forceps handle 102 tend to be away from each other, and when the latch on the second forceps handle is clamped on the clamping strip, the latch on the second forceps handle 102 is firmly clamped between two adjacent latches on the clamping strip 105, so that preparation is made for gripping the object clamped behind the reduction forceps.
The end of the first forceps handle 101 is provided with a sleeve 106, the sleeve 106 extends towards two sides, the extending direction is parallel to the extending direction of the end of the first forceps handle 101, a sliding groove 10601 is arranged at the position close to the end of the second forceps handle 102, and the opening of the sliding groove 10601 faces the second forceps handle 102.
A slide rod 107 is slidably disposed in the sleeve 106, a pin 10701 is disposed at one end of the slide rod 107, and the pin 10701 is slidably disposed in the slot 10601 along with the slide rod 107 and is inserted into and slidably disposed in the slot 10201. The two handles are grasped, so that the second handle drives the pin 10701 to slide in the slot 10201 and the runner 10601, and the pin 10701 drives the slide rod 107 to slide in the sleeve 106. The end face of the other end of the sliding rod 107 is provided with anti-slip teeth 10702, and when the other end of the sliding rod 107 abuts against an object to be clamped, the anti-slip teeth 10702 play an anti-slip role.
The end of the sleeve 106 far away from the first clamp handle 102 is provided with a mounting block 108, the mounting block 108 is provided with an insertion hole in a penetrating manner, the extending direction of the insertion hole is consistent with the extending direction of the sleeve, the mounting block 108 is provided with a threaded hole perpendicular to the insertion hole, the threaded hole is in threaded connection with a screw 109, the outer end of the screw 109 is provided with a handle convenient to operate, and the inner end can be screwed into the insertion hole. The fixing rod 110 is inserted into the insertion hole, and the end of the fixing rod 110 far away from the first forceps handle 102 is provided with a hook, as shown in fig. 2a, the hook is far away from the second forceps handle 102, the hook is adjusted to the plane perpendicular to the plane of the forceps handles, and the fixing rod 110 is clamped by a screw 109.
The sleeve arrangement comprises a sleeve 201, one end of the sleeve 201 being tapered. A positioning needle 202 is inserted in the sleeve 201, a handle 20202 is arranged at the outer end part of the positioning needle 202, and the end part of the positioning needle 202, which is positioned in the sleeve, is provided with threads and is tapered. The inner diameter of the hook on the fixing rod 101 is matched with the diameter of the positioning needle 202, so that the hook can hook the positioning needle 202. The fixing rod 110 is detachably mounted on the mounting block 108, and the fixing rod 110 can be replaced according to specific conditions, so that a hook at the end of the fixing rod 110 is changed, and the hook is replaced by other structures which are matched and clamped with the positioning pin.
After fracture occurs at the proximal femur position on the femur 3, a crack 302 is generated on the proximal femur, the fracture position is usually fixed by using an intramedullary nail as shown in fig. 5a, at this time, the proximal femur intramedullary nail needs to be driven into the end of the femur 3 (B in fig. 4) to reposition and fix the femur together, and during the driving of the intramedullary nail, the femoral head is prone to be inverted due to the existence of the crack 302, and the condition shown in fig. 5a occurs. Therefore, before driving into an intramedullary nail, the femur needs to be repositioned and firmly positioned in order to drive into the intramedullary nail. The following description is provided to illustrate how the present invention may be used to reposition and position a femoral head.
Firstly, since the fracture position is located at the root of the femoral neck 302, it is inconvenient to use the reduction forceps to directly clamp, a needle hole 303 needs to be drilled on the femoral neck 302, when the needle hole 303 is drilled, the positioning needle 202 is penetrated on the sleeve 201, so that the tip of the positioning needle 202 corresponds to the tip of the sleeve 201, before, an operation opening is already cut at the proximal position of the femur, a sleeve device is used to penetrate through the muscle and make the tip of the sleeve device abut against the position of the needle hole 303 in fig. 5a, the handle 20201 is rotated to drill the needle hole 303, the sleeve 201 protects the muscle at the position of the needle hole 303 to prevent the drill bit from damaging the muscle tissue, then the sleeve device is taken out, and the positioning needle 202 is screwed into the needle hole 303 again and screwed down.
The femoral head 301 is then clamped using reduction forceps. The reduction forceps are held to the maximum so that the hook at the end of the fixing rod 110 is farthest away from the anti-slip teeth 10702 at the end of the sliding rod 107, and the latch on the second forceps handle 102 is snapped between the latches on the latch bar 105. The hook is extended to the incision and hooks the positioning needle 202, namely the hook hooks the femoral head 301 and the femoral neck 306, the anti-slip teeth 10702 are aligned with the recess below the greater trochanter, the reduction forceps are gripped, the sliding rod 107 is close to the femur, the anti-slip teeth 10702 are pressed against the recess below the greater trochanter 305, the femur is clamped, at the moment, the latch on the second forceps handle 102 is clamped on the clamping strip 105, and the femoral head 301 and the femoral neck 306 are clamped with the femoral body.
Finally, an intramedullary nail can be driven into the femur, and the reduction forceps and the positioning needle can be removed after the intramedullary nail is fixed and the femoral head and the femur body are fixed together.
The second embodiment of the present invention is different from the first embodiment in that the proximal end of the femur is as shown in fig. 5b, and the proximal end of the femur is different from 5a in that after the fracture, one part of the femur is inserted into the other part of the femur, and the two parts need to be separated, the fixing rod shown in fig. 2a is replaced with the fixing rod shown in fig. 2b, the end of the fixing rod is Y-shaped, after the positioning pin 202 is set by using the same method as the first embodiment, the end of the fixing rod with the Y-shaped end is abutted and clamped on the positioning pin 202, the anti-slip teeth 10702 are abutted against the concave part below the greater trochanter 305, so that the teeth on the second forceps handle 102 are disengaged from the clamping strip 105, the second forceps handle 102 is held still, the holding part of the first forceps handle 101 is kept away from the holding part of the first forceps handle 102, the reduction forceps is opened, so that the fixing rod with the Y-shaped end pushes the positioning pin 202, and then the two parts of the femur are separated, and after the separation, the femur is clamped and positioned in the same manner as the first embodiment, and then the intramedullary nail is driven.
The third embodiment of the utility model, the difference with the first embodiment lies in, the condition of femoral fracture is as shown in fig. 5c, little trochanter 304 breaks away from thighbone 3, at this moment, do not need sleeve device, replace the dead lever shown in fig. 2a for the dead lever that the tip is big crotch as shown in fig. 2c, because the big crotch internal diameter of this dead lever is great, be greater than human thighbone diameter, can directly catch on little trochanter, the thighbone of antiskid tooth 10702 tight little trochanter another side in top, press from both sides tight back, it is fixed with the thighbone reduction and centre gripping to make little trochanter, then squeeze into the intramedullary nail. In case of femoral fracture as shown in fig. 5d, both the lesser trochanter and the greater trochanter are separated from the main body of the femur, and the lesser trochanter and the anti-slip teeth are hooked by the fixing rods and pressed against the greater trochanter, respectively, so that the greater trochanter and the lesser trochanter are reset and clamped and fixed, and then the intramedullary nail is driven in.
The embodiment of the utility model four, the difference with embodiment one lies in, the condition of femoral fracture is as shown in fig. 5e, the femoral head, the femoral neck, little trochanter not only breaks away from the thighbone main part as a whole, and the femoral head, the femoral neck, little trochanter is to the inboard incline, at this moment, do not need sleeve device, replace the dead lever shown in fig. 2a for the dead lever shown in fig. 2d, the hook internal diameter of buckling of this dead lever tip is great, be greater than human thighbone diameter, and buckle the tip of buckling the hook inwards, when using the pincers that reset, the hook of buckling of fixed lever tip is along the femoral neck, thighbone between the little trochanter gets into the inboard of thighbone, make the terminal of the hook of buckling of dead lever catch on the part that breaks away from of thighbone, antiskid tooth top is tight in thighbone another side, hold two pincers handles of pincers that reset, make the thighbone that break away from the part restore to the throne, then buckle the hook on the dead lever catches on the thighbone and the thighbone handle of breaking away from the part, continue to hold two pincers handles tightly, make the thighbone that break away from restore to the thighbone and the main part and the centre gripping is fixed, then squeeze into.
The fifth embodiment of the present invention is different from the first embodiment in that the femoral fracture is as shown in fig. 5f, the greater trochanter fracture in the intertrochanteric fracture is caused by the traction of the gluteus medius and the supinator to shift to the near end and backward, the fracture shift is aggravated by traction during the reduction, at this time, the greater trochanter is hooked by the large hook of the fixing rod shown in fig. 2e, and the reduction forceps are used for pressurizing, so as to reduce the greater trochanter and temporarily fix the greater trochanter as shown in fig. 6 b. In the big hook of the fixing rod shown in fig. 2e, the big hook is arc-shaped, the tail end of the big hook is bent inwards, the included angle between the tangent line at the middle position of the big hook and the fixing rod is alpha, the value of alpha is 50 degrees, the distance between the tail end of the big hook and the fixing rod is d, and the value of d is 2-5 cm.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a thighbone near-end fracture pincers that reset which characterized in that: the resetting forceps comprise a first forceps handle and a second forceps handle, wherein the first forceps handle and the second forceps handle are mutually hinged, the two forceps handles are bounded by a hinged position, one side of each forceps handle is a hand holding part, and the other side of each forceps handle is a clamping part; the end part of the first clamp handle clamping part extends towards one side, the end part of the first clamp handle clamping part is provided with a sleeve, the sleeve extends towards two sides, the extending direction is parallel to the extending direction of the end part of the first clamp handle clamping part, the end part of the second clamp handle clamping part is provided with a long hole, and the long hole extends along the length direction of the second clamp handle; a sliding groove is formed in the position, close to the end part of the second pliers handle, of the sleeve, the opening of the sliding groove faces the second pliers handle, a sliding rod is arranged in the sleeve in a sliding mode, a pin is arranged at one end of the sliding rod, the pin is arranged in the sliding groove along with the sliding rod in a sliding mode and is arranged in the long hole in a plug-in and sliding mode, the end part, far away from the second pliers handle, of the sleeve is detachably provided with a fixing rod, and the extending direction of the fixing rod is the same as the extending direction of the end part of the clamping part of the first pliers handle; the end part of the fixed rod far away from the first forceps handle is provided with a structure which is matched and clamped with the femur, and the plane of the structure is vertical to the plane of the first forceps handle and the plane of the second forceps handle.
2. The reduction forceps for proximal femoral fracture according to claim 1, characterized in that: first pincers handle portion of holding sets up protrudingly, and the arch is close to articulated position, and second pincers handle portion of holding wholly buckles to first pincers handle.
3. The reduction forceps for proximal femoral fracture according to claim 1, characterized in that: the end part of the first forceps handle holding part is hinged with a clamping strip, and the rotating plane of the clamping strip and the rotating planes of the two forceps handles are on the same plane; a plurality of clamping teeth are arranged on the inner side surface of each clamping strip, the surface of each clamping tooth facing to the hinged position of each clamping tooth is perpendicular to the clamping strips, and the other surface of each clamping tooth is obliquely arranged; the tip that the second pincers handle was held sets up a latch, and the latch on the second pincers handle inclines towards the direction of keeping away from first pincers handle.
4. The reduction forceps for proximal femoral fractures according to claim 1, characterized in that: the first elastic sheet is arranged on the inner side of the first forceps handle holding part and is fixed on the first forceps handle through a screw, and the position of the screw is close to the end part of the first forceps handle holding part; a second elastic sheet is arranged on the inner side of the second forceps handle holding part and is fixed on the second forceps handle through a screw, and the position of the screw is close to the end part of the second forceps handle holding part; the other end of the first elastic sheet and the other end of the second elastic sheet are close to each other and clamped at the end parts.
5. The reduction forceps for proximal femoral fractures according to claim 1, characterized in that: and the end face of the other end of the sliding rod is provided with anti-skidding teeth.
6. The reduction forceps for proximal femoral fractures according to claim 1, characterized in that: the end part of the sleeve far away from the first clamp handle is provided with a mounting block, the mounting block is provided with an insertion hole in a penetrating way, the extending direction of the insertion hole is parallel to the extending direction of the sleeve, the mounting block is provided with a threaded hole perpendicular to the insertion hole, the threaded hole is in threaded connection with a screw, and the outer end part of the screw is provided with a handle convenient to operate; and a fixing rod is inserted into the insertion hole.
7. The reduction forceps for proximal femoral fractures according to claim 6, characterized in that: the end part of the fixed rod is provided with a large hook or a bent hook structure or a large hook structure.
8. The reduction forceps for proximal femoral fractures according to claim 7, characterized in that: the big hook is arc-shaped, the tail end of the big hook is bent inwards, an included angle between a tangent line at the middle position of the big hook and the fixed rod is alpha, the value of the alpha is 50 degrees, the distance between the tail end of the big hook and the fixed rod is d, and the value of the d is 2-5 cm.
CN202221325652.9U 2022-05-27 2022-05-27 Reduction forceps for proximal femoral fracture Active CN217723659U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221325652.9U CN217723659U (en) 2022-05-27 2022-05-27 Reduction forceps for proximal femoral fracture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221325652.9U CN217723659U (en) 2022-05-27 2022-05-27 Reduction forceps for proximal femoral fracture

Publications (1)

Publication Number Publication Date
CN217723659U true CN217723659U (en) 2022-11-04

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