CN216021320U - Multifunctional pelvis repositor - Google Patents

Abstract

The utility model relates to a multifunctional pelvis restorer, which comprises a left fixing frame and a right fixing frame which are connected together through an opening and closing angle adjusting mechanism, wherein the end parts of the left fixing frame and the right fixing frame are both connected with a ball head universal rod, and the end part of the right fixing frame is connected with the ball head universal rod through a propulsion adjusting mechanism; an outer sleeve is fixedly arranged at the end part of the ball head universal rod; the outer sleeve is used for installing a bone nail inner sleeve or a pressing plate assembly, the pushing adjusting mechanism is used for enabling the ball head universal rod on one side to be close to the ball head universal rod on the other side to drive the bone nails on the two sides or the pressing plate assembly to finely adjust and pressurize the pelvis, or the pushing adjusting mechanism is used for enabling the ball head universal rod on one side to be far away from the ball head universal rod on the other side to drive the bone nails on the two sides or the pressing plate assembly to release the fine adjustment and pressurization on the pelvis. The pelvis restorer has a plurality of functions, the pelvis restorer provided with the bone screw inner sleeve meets the use scene of an operating room, and the pelvis restorer provided with the pressing plate component meets the use scene of first-aid treatment.

Description

Multifunctional pelvis repositor

Technical Field

The utility model relates to the field of medical instruments, in particular to a multifunctional pelvis restorer.

Background

The pelvis structure is formed by connecting the left and right hip bones, the sacrum and the coccyx through bones, when the pelvis of a human body is accidentally collided, the pelvis is fractured, gaps and other injuries can be generated between the left and right hip bones and the sacrum, the bleeding phenomenon can be generated under serious conditions, the life is threatened, and the hemostasis treatment needs to be performed in time.

At present, when the first aid is clinically treated, the hip of a patient is generally bound and fixed by utilizing a binding band, so that the pelvis is stabilized, a large amount of blood loss is avoided, then the patient goes to a hospital and is treated, when the treatment is carried out, two bone nails are generally required to be nailed on two sides of the pelvis, then the pelvis is reset and fixed by clamping the bone nails on the two sides by a C-shaped pelvis external fixing frame, and then the doctor can conveniently carry out the next treatment. For example, patent publication No. CN 205493973U: a pelvic ring clamp for temporary fixation, and patent publication No. CN 204379421U: the utility model provides a special guider of pelvis, all adopt the bone nail of centre gripping both sides to fix the pelvis that resets in above patent, this kind of pelvis positioner has following shortcoming: 1. the application scene is single, and the application cannot be applied to emergency hemostasis treatment; 2. after the pelvis is positioned, fine adjustment cannot be carried out, so that the pelvis is reset and pressurized inaccurately; 3. the two end parts of the C-shaped pelvis external fixing frame are not adjustable in 360 degrees, so that when the C-shaped pelvis external fixing frame clamps bone nails, the bone nails can be deviated, and the resetting accuracy of the pelvis is influenced.

Accordingly, there is a need for improvements and optimizations to existing pelvic repositioners.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the multifunctional pelvis reduction device which is reasonable in structural design, can improve the pelvis reduction accuracy and can meet the requirements of two scenes, namely an emergency treatment scene and an operating room.

The technical scheme adopted by the utility model for solving the problems is as follows: a multifunctional pelvis restorer comprises a left fixing frame and a right fixing frame which are connected together through an opening and closing angle adjusting mechanism, wherein the opening and closing angle adjusting mechanism is used for adjusting the opening angle of the left fixing frame and the right fixing frame; the method is characterized in that: the end parts of the left fixing frame and the right fixing frame are both connected with a ball head universal rod, and the end part of the ball head universal rod is provided with an outer sleeve; the outer sleeve is used for mounting a bone nail inner sleeve or a pressing plate component, the bone nail inner sleeve is used for clamping a bone nail, and the bone nail inner sleeve and the pressing plate component are detachably connected with the outer sleeve; when the bone nail inner sleeve is installed, the bone nail inner sleeve is installed in the outer sleeve; when the pressing plate component is installed, one side of the pressing plate component faces towards the pelvis of a human body and is used for pushing the side of the pelvis, and the other side of the pressing plate component is detachably connected with the outer sleeve; in two bulb universal rods, wherein at least one bulb universal rod is connected with the end part of the left fixing frame or the end part of the right fixing frame through a propulsion adjusting mechanism, and the propulsion adjusting mechanism is used for enabling the bulb universal rod on one side to be close to the bulb universal rod on the other side to drive the bone nails or the pressing plate components on the two sides to finely adjust and pressurize the pelvis, or is used for enabling the bulb universal rod on one side to be far away from the bulb universal rod on the other side to drive the bone nails or the pressing plate components on the two sides to release the fine adjustment and pressurization on the pelvis.

Preferably, the opening and closing angle adjusting mechanism comprises a first connecting seat, a second connecting seat, a short shaft and a locking connecting piece; the first connecting seat is fixedly connected with the right fixing frame, and the second connecting seat is fixedly connected with the left fixing frame; the first connecting seat and the second connecting seat can be rotatably connected through a short shaft, wherein the short shaft is fixedly connected with the first connecting seat, and fluted disc structures with meshed teeth are arranged on the inner sides of the first connecting seat and the second connecting seat; the locking connecting piece is respectively connected with the first connecting seat and the second connecting seat, the first connecting seat and the second connecting seat are used for enabling the second connecting seat to move axially along the short shaft, and then the first connecting seat and the second connecting seat are locked or unlocked.

Preferably, the locking connection comprises a knob, a rotation shaft and a spring; one end of the rotating shaft is in threaded connection with the first connecting seat, the other end of the rotating shaft sequentially penetrates through the short shaft and the second connecting seat and then is fixedly connected with the knob, and the rotating shaft is in clearance fit connection with the second connecting seat; the spring is sleeved on the rotating shaft, one end of the spring abuts against the inner side of the first connecting seat, and the other end of the spring abuts against the inner side of the second connecting seat; the knob is used for rotating the rotating shaft to enable the second connecting seat to move axially along the short shaft.

Preferably, the ball head universal rod comprises a ball head rod, a ball head seat and a locking rotary cover; the upper end of the ball head seat is directly connected with the left fixing frame or the right fixing frame, or the upper end of the ball head seat is connected with the left fixing frame or the right fixing frame through a propulsion adjusting mechanism; the locking rotary cover is connected with the ball head seat through internal and external threads, and the locking rotary cover is used for rotatably and adjustably mounting the ball head rod on the ball head seat; the lower end of the ball head rod is fixedly connected with the outer sleeve.

Preferably, the outer sleeve is fixedly arranged at the end part of the ball-head universal rod in a posture that the axis of the outer sleeve is vertical to the axis of the ball-head universal rod; the bottom of the outer sleeve is provided with a thread through hole, a locking screw is arranged in the thread through hole, the middle part of the front side surface of the outer sleeve is provided with an axial outer sleeve opening, a positioning screw is arranged on the inner wall surface of the outer sleeve opposite to the outer sleeve opening, and the end part of the positioning screw extends into the inner cavity of the outer sleeve.

Preferably, the middle part of the front side surface of the inner sleeve of the bone nail is provided with an axial inner sleeve opening, the outer wall surface of the inner sleeve of the bone nail, which is opposite to the inner sleeve opening, is provided with an axial through groove, and the bottom of the inner sleeve of the bone nail is provided with a through hole for locking; when the bone nail inner sleeve is arranged in the outer sleeve, the opening of the inner sleeve corresponds to the opening of the outer sleeve, the end part of the positioning screw extends into the through groove, and the end part of the locking screw extends into the through hole for locking.

Preferably, the pressure plate assembly comprises a pressure plate and a connecting shaft, and the connecting shaft is fixedly connected with the pressure plate; a circle of circumferential positioning steps and a circle of circumferential positioning grooves are arranged on the connecting shaft; when the pressing plate assembly is connected with the outer sleeve, part of the connecting shaft is inserted into the outer sleeve, the positioning step abuts against the end face of the outer sleeve, and the end part of the locking screw abuts against the bottom face of the positioning groove.

Preferably, the propelling and adjusting mechanism comprises a screw rod, a screw rod mounting seat, a guide block and a cover plate; the guide block is fixedly connected with the end part of the left fixing frame or the end part of the right fixing frame; the two screw rod mounting seats are respectively mounted at the left end and the right end of the guide block, the screw rod is supported and mounted by the two screw rod mounting seats, and one end of the screw rod penetrates out of the screw rod mounting seats and is connected with a screw rod rotation operating part; the ball head universal rod is in threaded transmission connection with the screw rod; dovetail grooves I are formed in the front side face and the rear side face of the guide block; the two cover plates are connected to the front side and the rear side of the guide block in a sliding mode, and a dovetail-shaped convex strip I matched with the dovetail groove I is arranged on the inner side of each cover plate; the cover plate is fixedly connected with the ball head universal rod.

Preferably, the lead screw rotation operating part adopts a handle or a hand wheel, and the end of the lead screw, which is used for being connected with the handle or the hand wheel, adopts a hexagonal shaft structure.

Preferably, the left end face and the right end face of the guide block are provided with a vertical dovetail-shaped convex strip II, the inner side of the screw rod installation seat is provided with a vertical dovetail groove II, the dovetail-shaped convex strip II is matched with the dovetail groove II, the front side face and the rear side face of the screw rod installation seat are provided with a transverse dovetail groove III, the cross section sizes of the dovetail groove III and the dovetail groove I are consistent, and when the screw rod installation seat and the guide block are installed together, the dovetail groove III is in butt joint with the dovetail groove I.

Preferably, the left fixing frame and the right fixing frame are both arc-shaped and symmetrical in structure.

Compared with the prior art, the utility model has the following advantages and effects:

1. the pelvis restorer has not only single function, but also can be used for installing the bone screw inner sleeve and connecting the pressing plate assembly, the pelvis restorer provided with the bone screw inner sleeve meets the use scene of an operating room, the pelvis restorer provided with the pressing plate assembly meets the use scene of first aid, the pressing plate assemblies on two sides are utilized to stabilize the pelvis, a great amount of blood loss is avoided, and the first aid efficiency is greatly improved;

2. after the pelvis restorer is fixed on a patient, the pressurizing plate or the bone nail contacted with the patient and the outer sleeve can be adjusted in a rotating way, and the outer sleeve is connected to the left fixing frame or the right fixing frame through the ball head universal rod, so that the left fixing frame and the right fixing frame can be turned over and freely placed above or below the pelvis of the patient under the condition that the pressurizing is not loosened, the abdomen and the thighs are completely exposed, and other operations are not influenced;

3. the opening and closing angle adjusting mechanism adopts the engagement or disengagement of a two-fluted disc structure to realize the opening and closing angle adjustment of the left and right fixing frames and the locking after the adjustment in place, and has simple and reasonable structural design and high reliability;

4. the middle part of the front side surface of the outer sleeve is provided with an outer sleeve opening, a positioning screw is arranged on the inner wall surface of the outer sleeve opposite to the outer sleeve opening, the middle part of the front side surface of the bone nail inner sleeve is provided with an inner sleeve opening, the outer wall surface of the bone nail inner sleeve opposite to the inner sleeve opening is provided with an axial through groove, and the bottom of the bone nail inner sleeve is provided with a through hole for locking; when the bone nail inner sleeve is arranged in the outer sleeve, the end part of the positioning screw extends into the through groove to limit the circumferential rotation of the bone nail inner sleeve, so that the opening of the inner sleeve corresponds to the opening of the outer sleeve, the subsequent bone nail clamping is convenient, and in addition, the end part of the locking screw extends into the through hole for locking to limit the axial movement of the bone nail inner sleeve and prevent the axial movement;

5. a circle of circumferential positioning steps and a circle of circumferential positioning grooves are arranged on a connecting shaft in the pressure plate assembly; when the pressing plate assembly is connected with the outer sleeve, part of the connecting shaft is inserted into the outer sleeve, when the positioning step abuts against the end face of the outer sleeve, the positioning groove is in positive correspondence with the locking screw, then the end part of the locking screw abuts against the groove bottom surface of the positioning groove, so that the installation of the pressing plate assembly is completed, the positioning step can be used for controlling the insertion depth of the connecting shaft, and a doctor can easily judge whether the pressing plate assembly is installed in place during operation, the installation is simple, convenient, rapid and time-saving, and the first-aid efficiency is improved;

6. after the pelvis restorer is fixed on a patient, the pushing adjusting mechanism is finally utilized to push the pressurizing plate or bone nails on one side to the other side for a short distance to pressurize, so that the pelvis restorer is more suitable for fine adjustment of the pelvis with different sizes, the resetting and pressurizing are more accurate, and the pushing is clinically shown to be not more than 5cm so as to avoid the pelvis breakage due to pressurizing transition;

7. in the propulsion adjusting mechanism, a ball head universal rod is driven to move manually by utilizing the principle of screw transmission, the movement of the ball head universal rod is accurately guided by utilizing a guide block and a cover plate, a first dovetail groove is formed in the front side surface and the rear side surface of the guide block, a first dovetail-shaped convex strip matched with the first dovetail groove is arranged on the inner side of the cover plate, the cover plate is ensured to move stably by the matching of the first dovetail groove and the first dovetail-shaped convex strip, and the movement accuracy is high;

8. the guide block is provided with two vertical dovetail-shaped convex strips on the left end face and the right end face of the guide block, the inner side of the screw rod mounting seat is provided with two vertical dovetail grooves, the two dovetail-shaped convex strips are matched with the two dovetail grooves, when the guide block is specifically assembled, the screw rod is firstly mounted on the two screw rod mounting seats, then the screw rod mounting seats are matched with the two dovetail-shaped convex strips through the two dovetail grooves and the two dovetail-shaped convex strips, and the guide block is finally fastened by bolts, so that the guide block is convenient to mount and high in precision.

Drawings

In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 to 6 show the pelvis reduction device with the pressing plate assembly installed in the embodiment, and the screw rotation operation part adopts a handle.

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is another schematic perspective view of the embodiment of the present invention.

Fig. 3 is a schematic front view of the embodiment of the present invention.

Fig. 4 is a schematic rear view of the embodiment of the present invention.

Fig. 5 is a schematic top view of an embodiment of the present invention.

Fig. 6 is a left side view structural diagram of the embodiment of the utility model.

Fig. 7 is a schematic sectional view of fig. 3.

Fig. 8 is an enlarged schematic view of a portion a in fig. 7.

Fig. 9 is an expanded view of the opening/closing angle adjusting mechanism in the embodiment of the present invention.

FIG. 10 is an expanded view of the propulsion adjustment mechanism (the lead screw rotation operating member employs a hand wheel) in an embodiment of the present invention.

Fig. 11 is an expanded view of the ball-and-socket joint on the left side in the embodiment of the present invention.

Fig. 12 is a front view of the inner cannula of the bone screw in an embodiment of the present invention.

Fig. 13 is a schematic sectional view taken along line a-a in fig. 12.

Fig. 14 is a cross-sectional view of the bone screw inner cannula mounted to the outer cannula.

Description of reference numerals:

an opening and closing angle adjusting mechanism 1; a left fixing frame 2; a right fixing frame 3; a ball head universal rod 4; an outer sleeve 5; an inner bone nail sleeve 6; a platen assembly 7; a propulsion adjustment mechanism 8;

a first connecting seat 11; a second connecting seat 12; a knob 13; a rotating shaft 14; a spring 15; a short shaft 16;

a fluted disc structure 110; a mounting hole 111; a nut 112;

a ball rod 41; a ball cup 42; a locking screw cap 43; a threaded hole 421;

a threaded through hole 51; a locking screw 52; an outer sleeve opening 53; a set screw 54;

an inner sleeve opening 61; a through groove 62; a through hole 63 for locking;

a pressing plate 71; a connecting shaft 72; a positioning step 721; a positioning groove 722;

a screw rod 81; a screw rod mounting seat 82; a guide block 83; a cover plate 84;

a second dovetail groove 821; a dovetail groove III 822;

a dovetail groove I831; a second dovetail convex strip 832; a dovetail shaped convex strip 841;

a handle 91; a handwheel 92.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.

Examples are given.

See fig. 1-14.

The embodiment discloses a multifunctional pelvis restorer which comprises a left fixing frame 2, a right fixing frame 3, a ball head universal rod 4, an outer sleeve 5, a bone nail inner sleeve 6 and a pressure plate assembly 7.

In this embodiment, left mount 2 and right mount 3 all are the arc, and the structure symmetry, the material adopts the titanium alloy material that intensity is high, matter is light, and both link together through opening and shutting angle adjustment mechanism 1, and opening and shutting angle adjustment mechanism 1 is used for adjusting the angle of opening of left mount 2 and right mount 3, makes the pelvis restorer be used for the patient of different pelvis sizes.

Specifically, the opening and closing angle adjusting mechanism 1 includes a first connecting seat 11, a second connecting seat 12, a short shaft 16 and a locking connecting piece. The first connecting seat 11 is fixedly connected with the right fixing frame 3 through screws, and the second connecting seat 12 is fixedly connected with the left fixing frame 2 through screws; the first connecting seat 11 and the second connecting seat 12 can be rotatably connected through a short shaft 16, wherein the short shaft 16 is fixedly connected with the first connecting seat 11 through a screw, and fluted disc structures 110 with meshing teeth are arranged on the inner sides of the first connecting seat 11 and the second connecting seat 12. The locking connecting pieces are respectively connected with the first connecting seat 11 and the second connecting seat 12, the second connecting seat 12 can axially move along the short shaft 16, and then the first connecting seat 11 and the second connecting seat 12 are locked or unlocked, when the locking is performed, the meshing teeth of the fluted disc structures 110 on the first connecting seat 11 and the second connecting seat 12 are meshed and connected, and when the unlocking is performed, the meshing teeth of the fluted disc structures 110 on the first connecting seat 11 and the second connecting seat 12 are disengaged.

Further, in the present embodiment, the locking link includes a knob 13, a rotation shaft 14, and a spring 15; a mounting hole 111 is formed in the first connecting seat 11, a nut 112 is mounted in the mounting hole 111 in an interference fit mode, an external thread is arranged at one end of the rotating shaft 14 and connected with the nut 112, the other end of the rotating shaft 14 penetrates through the short shaft 16 and the second connecting seat 12 in sequence and then is fixedly connected with the knob 13, and the rotating shaft 14 is connected with the second connecting seat 12 in a clearance fit mode. The spring 15 is sleeved on the rotating shaft 14, one end of the spring 15 abuts against the inner side of the first connecting seat 11, and the other end of the spring 15 abuts against the inner side of the second connecting seat 12. The knob 13 is used for rotating the rotating shaft 14 to make the second connecting seat 12 move axially along the short shaft 16. During specific operation, an operator rotates the knob 13 in the front direction, rotates the knob 13 counterclockwise, the knob 13 drives the rotating shaft 14 to rotate to screw out a small distance from the nut 112 (the distance can meet the requirement that the meshed teeth of the fluted disc structures 110 on the first connecting seat 11 and the second connecting seat 12 are disengaged), then the second connecting seat 12 moves axially along the short shaft 16 towards the operator under the thrust action of the spring 15, then the meshed teeth of the fluted disc structures 110 on the second connecting seat 12 are disengaged from the meshed teeth of the fluted disc structures 110 on the first connecting seat 11 to complete unlocking, then the operator can freely rotate the left fixing frame 2 to perform angle adjustment, and the left fixing frame 2 rotates around the axis of the short shaft 16; after the angle is adjusted to a proper position, the knob 13 is rotated clockwise, the knob 13 drives the rotating shaft 14 to rotate and reset, at this time, the knob 13 pushes the connecting seat II 12 to move axially along the short shaft 16 away from an operator, then the meshing teeth of the fluted disc structure 110 on the connecting seat II 12 are meshed with the meshing teeth of the fluted disc structure 110 on the connecting seat I11, locking is completed, and the left fixing frame 2 and the right fixing frame 3 cannot rotate relatively.

In this embodiment, the end portions of the left fixing frame 2 and the right fixing frame 3 are both connected with a ball universal rod 4, so that the pressurizing and resetting are more accurate, and in the two ball universal rods 4, at least one ball universal rod 4 is connected with the end portion of the left fixing frame 2 or the end portion of the right fixing frame 3 through a propulsion adjusting mechanism 8. In the embodiment, the propulsion adjusting mechanism 8 is arranged at the joint of the ball head universal rod 4 on the right side and the right fixing frame 3, and the arrangement mode accords with the right hand operation habit of most operators.

An outer sleeve 5 is arranged at the end part of the ball head universal rod 4. The outer cannula 5 is used to mount the bone screw inner cannula 6 or the pressure plate assembly 7. The bone nail inner sleeve 6 is used for clamping bone nails, the bone nails refer to the prior art, and the bone nail inner sleeve 6 and the pressure plate component 7 are both detachably connected with the outer sleeve 5. The pelvis restorer function in this embodiment is not single, installs the pelvis restorer of sleeve pipe 6 in the bone nail and satisfies the use scene of operating room, and the pelvis restorer of installing clamp plate assembly 7 satisfies the first aid and uses the scene, utilizes the clamp plate assembly 7 of both sides to stabilize the pelvis, avoids a large amount of blood losses, has greatly improved first aid efficiency.

Specifically, in the present embodiment, the ball-end gimbal 4 includes a ball-end lever 41, a ball-end seat 42, and a locking cap 43; the upper end of the ball head seat 42 in the ball head universal rod 4 on the left side is directly and fixedly connected with the left fixing frame 2 through a screw, the upper end of the ball head seat 42 in the ball head universal rod 4 on the right side is connected with the propulsion adjusting mechanism 8, and the propulsion adjusting mechanism 8 is connected with the right fixing frame 3. The bottom center of the ball head seat 42 is provided with a ball socket structure matched with the ball head of the ball head rod 41, the outer side of the bottom of the ball head seat 42 is provided with a circle of external threads, the locking screw cap 43 is provided with a central hole, the inner side surface of the central hole is a spherical cambered surface matched with the ball head of the ball head rod 41, the inner side of the upper part of the locking screw cap 43 is provided with a circle of internal threads, the locking screw cap 43 is connected with the ball head seat 42 through the internal threads and the external threads, and the locking screw cap 43 is used for rotatably and adjustably installing the ball head rod 41 on the ball head seat 42; the lower end of the ball head rod 41 is fixedly connected with the outer sleeve 5.

In this embodiment, when the ball lever 41 is locked, the top of the ball lever 41 is in close contact with the ball and socket structure, and when the ball lever 41 is released, the top of the ball lever 41 is not in contact with the ball and socket structure. In addition, the ball head seat 42 is made of stainless steel, and the ball head rod 41 is made of titanium alloy, so that the two have larger friction force when contacting, and the locking effect of the ball head rod 41 is improved.

In this embodiment, the ball head universal rod 4 is equivalent to a universal joint, and is flexibly and conveniently adjusted, so that the pressing plate assembly 7 can be better attached to the pelvis of a human body, or a bone nail can be better clamped.

In the embodiment, when the bone nail inner sleeve 6 is installed, the bone nail inner sleeve 6 is installed in the outer sleeve 5; when the pressing plate component 7 is installed, one side of the pressing plate component 7 faces towards the pelvis of the human body and is used for pushing the side of the pelvis, and the other side of the pressing plate component 7 is detachably connected with the outer sleeve 5.

Specifically, the outer tube 5 is fixedly attached to the end of the ball bar 41 in a posture in which the axis thereof is perpendicular to the axis of the ball-joint universal bar 4. The bottom of the outer sleeve 5 is provided with a thread through hole 51, a locking screw 52 is arranged in the thread through hole 51, the middle part of the front side surface of the outer sleeve 5 is provided with an axial outer sleeve opening 53, the inner wall surface of the outer sleeve 5 opposite to the outer sleeve opening 53 is provided with a positioning screw 54, and the end part of the positioning screw 54 extends into the inner cavity of the outer sleeve 5. In this embodiment, the front side of the outer sleeve 5 means: the face opposite to the operator when in use.

In this embodiment, the middle of the front side of the inner sleeve 6 of the bone nail is provided with an axial inner sleeve opening 61, the outer wall surface of the inner sleeve 6 of the bone nail opposite to the inner sleeve opening 61 is provided with an axial through groove 62, and the bottom of the inner sleeve 6 of the bone nail is provided with a through hole 63 for locking. When sleeve pipe 6 is installed in outer tube 5 in the bone nail, interior sleeve pipe opening 61 and outer tube opening 53 are guaranteed to correspond, in order to make things convenient for the clamping bone nail, interior sleeve pipe opening 61 and outer tube opening 53 correspond and realize through set screw 54 and logical groove 62, during the assembly, only make set screw 54's tip and logical groove 62 corresponding, sleeve pipe 6 could insert in the outer tube 5 in the bone nail, the assembly back that targets in place, set screw 54's tip stretches into logical groove 62, sleeve pipe 6's circumferential direction carries on spacingly in the bone nail, lock screw 52's tip stretches into in the through-hole 63 for the locking, sleeve pipe 6's axial displacement carries on spacingly in the bone nail, prevent its axial displacement.

In this embodiment, the pressing plate assembly 7 includes a pressing plate 71 and a connecting shaft 72, and the connecting shaft 72 is fixedly connected to the pressing plate 71 by screws. The pressure plate 71 is an arc-shaped plate, is made of materials such as POM, PK, PEEK and the like, and can be better attached to the pelvis of a human body by adopting the arc-shaped plate. A circle of circumferential positioning steps 721 and a circle of circumferential positioning slots 722 are arranged on the connecting shaft 72; when the pressing plate assembly 7 is connected with the outer sleeve 5, part of the connecting shaft 72 is inserted into the outer sleeve 5, the positioning step 721 abuts against the end surface of the outer sleeve 5, and the end of the locking screw 52 abuts against the groove bottom surface of the positioning groove 722. The positioning step 721 can be used for controlling the insertion depth of the connecting shaft 72, so that a doctor can easily judge whether the connecting shaft is installed in place during operation, the installation is simple, convenient and fast, time is saved, and the first-aid efficiency is improved.

In this embodiment, advance adjustment mechanism 8 and be used for making ball head universal rod 4 on right side to left ball head universal rod 4 be close to and drive both sides bone nail or clamp plate subassembly 7 and finely tune the pressurization to the pelvis, be fit for the not fine setting of unidimensional pelvis more, it is more accurate to reset the pressurization, perhaps is used for making ball head universal rod 4 on right side keep away from and drive both sides bone nail or clamp plate subassembly 7 and remove the fine setting pressurization to the pelvis to left ball head universal rod 4. In this embodiment, it is clinically shown that the advance of the advance adjustment mechanism 8 should not exceed 5cm in order to avoid pressure transitions that would break the pelvis.

Specifically, the feed adjustment mechanism 8 includes a lead screw 81, a lead screw mount 82, a guide block 83, and a cover plate 84. The guide block 83 is fixedly connected with the end part of the right fixing frame 3 through a screw; two screw rod mounting seats 82 are arranged and respectively mounted at the left end and the right end of the guide block 83, the screw rod 81 is supported and mounted by the two screw rod mounting seats 82, and one end of the screw rod 81 penetrates out of the screw rod mounting seats 82 and then is connected with a screw rod rotation operating part; the top of the ball seat 42 in the right ball-head universal rod 4 is provided with a threaded hole 421, and the ball seat 42 is in threaded transmission connection with the screw rod 81 through the threaded hole 421. In order to make the ball seat 42 move with high precision, a cover plate 84 is fixedly arranged on the front side and the rear side of the ball seat 42 respectively, a dovetail groove 831 is arranged on the front side and the rear side of the guide block 83,

the inner side of the cover plate 84 is provided with a dovetail-shaped convex strip 841 matched with the dovetail groove 831, and the cover plate 84 is connected with the guide block 83 in a sliding mode.

In this embodiment, two vertical dovetail-shaped convex strips 832 are arranged on the left end face and the right end face of the guide block 83, two vertical dovetail grooves 821 are arranged on the inner side of the screw rod installation seat 82, the two dovetail-shaped convex strips 832 are matched with the two dovetail grooves 821, when the screw rod 81 is installed on the two screw rod installation seats 82, the screw rod installation seat 82 is inserted into the left end and the right end of the guide block 83 from bottom to top through the matching of the two dovetail grooves 821 and the two dovetail-shaped convex strips 832, and finally the screw rod installation seat is fastened by bolts.

In addition, the front side surface and the rear side surface of the screw rod mounting seat 82 are provided with a transverse third dovetail groove 822, the cross section sizes of the third dovetail groove 822 and the first dovetail groove 831 are consistent, when the screw rod mounting seat 82 and the guide block 83 are mounted together, the third dovetail groove 822 is in butt joint with the first dovetail groove 831, and the design avoids interference of the screw rod mounting seat 82 on movement of the cover plate 84.

In this embodiment, the screw rotation operation member may be a handle 91 or a hand wheel 92, and the end of the screw 81, which is used for being connected with the handle 91 or the hand wheel 92, adopts a hexagonal shaft structure. The end of the handle 91 is provided with a hexagon socket, when in operation, the handle 91 is arranged at the end of the hexagon shaft of the screw rod 81 through the hexagon socket, the handle 91 is pulled to adjust, after the adjustment is completed, the handle 91 can be removed, the handle 91 is equivalent to a wrench, but the handle 91 has the defect of easy loss after being removed. When the handwheel 92 is adopted, the handwheel 92 can be fixedly arranged at the end part of the hexagonal shaft of the screw rod 81, so that the defect that the handle 91 is easy to lose is overcome, and the adoption of the handle 91 or the handwheel 92 is determined according to the specific requirements of doctors.

In this embodiment, the method of using the pelvic repositor includes an emergency scene using method and an operating room scene using method. The emergency scene using method comprises the following steps:

the first step is as follows: the opening angle of the left fixing frame 2 and the right fixing frame 3 is adjusted to be maximum through the opening and closing angle adjusting mechanism 1;

the second step is that: installing a pressure plate assembly 7, and connecting the pressure plate assembly 7 with the outer sleeve 5;

the third step: the pelvis restorer is placed on the human body, so that the pressure plate components 7 are positioned at the two sides of the pelvis of the human body;

the fourth step: the opening angle of the left fixing frame 2 and the right fixing frame 3 is adjusted through the opening and closing angle adjusting mechanism 1 to be matched with the width of the pelvis of a human body;

the fifth step: the posture of the pressure plate assembly 7 is adjusted through the ball head universal rod 4, so that the pressure plates 71 in the pressure plate assembly 7 are attached to the two sides of the pelvis of the human body;

and a sixth step: the right pressing plate component 7 is pushed by the pushing and adjusting mechanism 8 to move leftwards for fine adjustment, and fine adjustment and pressurization are carried out on the pelvis.

The operating room scene using method comprises the following steps:

the first step is as follows: bone nails are nailed at the two sides of the human pelvis, and the opening angle of the left fixing frame 2 and the right fixing frame 3 is roughly adjusted through the opening and closing angle adjusting mechanism 1 so as to be matched with the width of the human pelvis;

the second step is that: installing the inner sleeve 6 of the bone nail in the outer sleeve 5;

the third step: the pelvis restorer is placed on a human body, the posture of the outer sleeve 5 is adjusted through the ball head universal rod 4, and the bone nail is inserted into the bone nail inner sleeve 6;

the fourth step: the opening angles of the left fixing frame 2 and the right fixing frame 3 are finely adjusted through the opening and closing angle adjusting mechanism 1, so that the bone nails are clamped by the bone nail inner sleeves 6 on the two sides;

the fifth step: the pushing adjusting mechanism 8 is used for pushing the bone nails on the right side to move leftwards for fine adjustment, so that the pelvis is clamped finely.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. All equivalent or simple changes in the structure, characteristics and principles of the utility model are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. A multifunctional pelvis restorer comprises a left fixing frame (2) and a right fixing frame (3) which are connected together through an opening and closing angle adjusting mechanism (1), wherein the opening and closing angle adjusting mechanism (1) is used for adjusting the opening angle of the left fixing frame (2) and the right fixing frame (3); the method is characterized in that: the end parts of the left fixing frame (2) and the right fixing frame (3) are both connected with a ball head universal rod (4), and an outer sleeve (5) is installed at the end part of the ball head universal rod (4); the outer sleeve (5) is used for mounting an inner bone nail sleeve (6) or a pressure plate assembly (7), the inner bone nail sleeve (6) is used for clamping a bone nail, and the inner bone nail sleeve (6) and the pressure plate assembly (7) are detachably connected with the outer sleeve (5); when the bone nail inner sleeve (6) is installed, the bone nail inner sleeve (6) is installed in the outer sleeve (5); when the pressing plate component (7) is installed, one side of the pressing plate component (7) faces towards the pelvis of a human body and is used for pushing the side of the pelvis, and the other side of the pressing plate component (7) is detachably connected with the outer sleeve (5); among two bulb universal rods (4), wherein at least one bulb universal rod (4) is connected with the end part of a left fixing frame (2) or the end part of a right fixing frame (3) through a propulsion adjusting mechanism (8), the propulsion adjusting mechanism (8) is used for enabling the bulb universal rod (4) on one side to be close to the bulb universal rod (4) on the other side to drive two sides of bone nails or pressing plate components (7) to finely adjust and pressurize the pelvis, or is used for enabling the bulb universal rod (4) on one side to be far away from the bulb universal rod (4) on the other side to drive the two sides of bone nails or pressing plate components (7) to release the fine adjustment and pressurization from the pelvis.

2. The multi-functional pelvic repositor of claim 1, wherein: the opening and closing angle adjusting mechanism (1) comprises a first connecting seat (11), a second connecting seat (12), a short shaft (16) and a locking connecting piece; the first connecting seat (11) is fixedly connected with the right fixing frame (3), and the second connecting seat (12) is fixedly connected with the left fixing frame (2); the connecting seat I (11) and the connecting seat II (12) can be rotatably connected through a short shaft (16), wherein the short shaft (16) is fixedly connected with the connecting seat I (11), and fluted disc structures (110) with meshing teeth are arranged on the inner sides of the connecting seat I (11) and the connecting seat II (12); the locking connecting piece is respectively connected with the first connecting seat (11) and the second connecting seat (12) and used for enabling the second connecting seat (12) to move axially along the short shaft (16), so that the first connecting seat (11) and the second connecting seat (12) are locked or unlocked, when the locking is performed, meshing teeth of the fluted disc structures (110) on the first connecting seat (11) and the second connecting seat (12) are meshed and connected, and when the unlocking is performed, the meshing teeth of the fluted disc structures (110) on the first connecting seat (11) and the second connecting seat (12) are disengaged.

3. The multi-functional pelvic repositor of claim 2, wherein: the locking connector comprises a knob (13), a rotating shaft (14) and a spring (15); one end of the rotating shaft (14) is in threaded connection with the first connecting seat (11), the other end of the rotating shaft (14) penetrates through the short shaft (16) and the second connecting seat (12) in sequence and then is fixedly connected with the knob (13), and the rotating shaft (14) is in clearance fit connection with the second connecting seat (12); the spring (15) is sleeved on the rotating shaft (14), one end of the spring (15) abuts against the inner side of the first connecting seat (11), and the other end of the spring (15) abuts against the inner side of the second connecting seat (12); the knob (13) is used for rotating the rotating shaft (14) to enable the second connecting seat (12) to move axially along the short shaft (16).

4. The multi-functional pelvic repositor of claim 1, wherein: the ball head universal rod (4) comprises a ball head rod (41), a ball head seat (42) and a locking rotary cover (43); the upper end of the ball head seat (42) is directly connected with the left fixing frame (2) or the right fixing frame (3), or the upper end of the ball head seat (42) is connected with the left fixing frame (2) or the right fixing frame (3) through a propulsion adjusting mechanism (8); the locking device comprises a ball head seat (42), a ball socket structure matched with a ball head of a ball head rod (41) is arranged in the center of the bottom of the ball head seat (42), a circle of external threads are arranged on the outer side of the bottom of the ball head seat (42), a locking screw cap (43) is provided with a central hole, the inner side surface of the central hole is a spherical arc surface matched with the ball head of the ball head rod (41), a circle of internal threads are arranged on the inner side of the upper portion of the locking screw cap (43), the locking screw cap (43) is connected with the ball head seat (42) through internal and external threads, and the locking screw cap (43) is used for rotatably and adjustably installing the ball head rod (41) on the ball head seat (42); the lower end of the ball head rod (41) is fixedly connected with the outer sleeve (5).

5. The multi-functional pelvic repositor of claim 1, wherein: the outer sleeve (5) is fixedly arranged at the end part of the ball head universal rod (4) in a posture that the axis of the outer sleeve is vertical to the axis of the ball head universal rod (4); a thread through hole (51) is formed in the bottom of the outer sleeve (5), a locking screw (52) is installed in the thread through hole (51), an axial outer sleeve opening (53) is formed in the middle of the front side face of the outer sleeve (5), a positioning screw (54) is installed on the inner wall face of the outer sleeve (5) opposite to the outer sleeve opening (53), and the end portion of the positioning screw (54) extends into the inner cavity of the outer sleeve (5).

6. The multi-functional pelvic repositor of claim 5, wherein: an axial inner sleeve opening (61) is formed in the middle of the front side face of the bone nail inner sleeve (6), an axial through groove (62) is formed in the outer wall face, opposite to the inner sleeve opening (61), of the bone nail inner sleeve (6), and a locking through hole (63) is formed in the bottom of the bone nail inner sleeve (6); when the bone nail inner sleeve (6) is arranged in the outer sleeve (5), the inner sleeve opening (61) corresponds to the outer sleeve opening (53), the end part of the positioning screw (54) extends into the through groove (62), and the end part of the locking screw (52) extends into the through hole (63) for locking.

7. The multi-functional pelvic repositor of claim 5, wherein: the pressure plate assembly (7) comprises a pressure plate (71) and a connecting shaft (72), and the connecting shaft (72) is fixedly connected with the pressure plate (71); a circle of circumferential positioning steps (721) and a circle of circumferential positioning grooves (722) are arranged on the connecting shaft (72); when the pressure plate assembly (7) is connected with the outer sleeve (5), part of the connecting shaft (72) is inserted into the outer sleeve (5), the positioning step (721) abuts against the end surface of the outer sleeve (5), and the end part of the locking screw (52) abuts against the bottom surface of the positioning groove (722).

8. The multi-functional pelvic repositor of claim 1, wherein: the propelling and adjusting mechanism (8) comprises a screw rod (81), a screw rod mounting seat (82), a guide block (83) and a cover plate (84); the guide block (83) is fixedly connected with the end part of the left fixing frame (2) or the end part of the right fixing frame (3); the two screw rod mounting seats (82) are respectively mounted at the left end and the right end of the guide block (83), the screw rod (81) is supported and mounted by the two screw rod mounting seats (82), and one end of the screw rod (81) penetrates out of the screw rod mounting seats (82) and then is connected with a screw rod rotation operating part; the ball head universal rod (4) is in threaded transmission connection with the screw rod (81); a dovetail groove I (831) is formed in the front side face and the rear side face of the guide block (83); the two cover plates (84) are arranged and are connected to the front side and the rear side of the guide block (83) in a sliding mode, and a dovetail-shaped convex strip I (841) matched with the dovetail groove I (831) is arranged on the inner side of each cover plate (84); the cover plate (84) is fixedly connected with the ball head universal rod (4).

9. The multi-functional pelvic repositor of claim 8, wherein: the lead screw rotation operating piece adopts a handle (91) or a hand wheel (92), and the end of the lead screw (81) used for being connected with the handle (91) or the hand wheel (92) adopts a hexagonal shaft structure;

and/or, be provided with vertical swallow-tail form sand grip two (832) on the both ends face about guide block (83), the inboard of lead screw mount pad (82) is provided with vertical dovetail two (821), and swallow-tail form sand grip two (832) and dovetail two (821) phase-match, are provided with horizontal dovetail three (822) on the front and back side of lead screw mount pad (82), and two cross-sectional dimensions of dovetail three (822) and dovetail one (831) are unanimous, and when lead screw mount pad (82) and guide block (83) were installed together, dovetail three (822) and dovetail one (831) butt joint.

10. The multi-functional pelvic repositor of claim 1, wherein: the left fixing frame (2) and the right fixing frame (3) are both arc-shaped and symmetrical in structure.

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