CN215688339U - Pressurizing and locking mechanism of pelvis restorer - Google Patents

Abstract

The utility model relates to a pressurizing and locking mechanism of a pelvis restorer, which is used for finely adjusting, propelling and pressurizing a connecting piece acting on the side edge of the pelvis of a human body, and a guide block is fixedly connected with the end part of a fixing frame at one side of the pelvis restorer; 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 connecting piece acting on the side of the pelvis of the human body is in threaded transmission connection with the screw rod; the front side surface and the rear side surface of the guide block are provided with a first sliding groove; the two cover plates are connected to the front side and the rear side of the guide block in a sliding mode, and a first raised line matched with the first sliding groove is arranged on the inner side of each cover plate; the cover plate is fixedly connected with the connecting piece. The pressurizing locking mechanism can enable the connecting piece acting on the side edge of the pelvis of a human body at one side to push a small distance to the other side for pressurizing, is more suitable for fine adjustment of the pelvis with different sizes, and is more accurate in resetting and pressurizing.

Description

Pressurizing and locking mechanism of pelvis restorer

Technical Field

The utility model relates to the field of medical instruments, in particular to a pressurizing and locking mechanism of a 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 seriously under the condition, and the life is threatened, so that the pelvis two sides of the pelvis are clamped by the pelvis restorer, the pelvis is stabilized, the hemostasis emergency treatment is timely carried out, and then the treatment is carried out after a patient arrives at a hospital.

The existing pelvis repositor usually adopts a C-shaped pelvis external fixing frame to clamp bone nails on two sides to reposition and fix the pelvis, and then a doctor can conveniently perform 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: after the pelvis is positioned, fine adjustment and pressurization cannot be carried out, so that the pelvis is reset and pressurized inaccurately.

Therefore, there is a need for improvements and optimizations.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a pressurizing and locking mechanism of a pelvis restorer with reasonable structural design.

The technical scheme adopted by the utility model for solving the problems is as follows: a pressurization locking mechanism of a pelvis restorer is used for finely adjusting, propelling and pressurizing a connecting piece acting on the side edge of the pelvis of a human body, and is characterized in that: the pressurizing locking 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 fixing frame at one side of the pelvis restorer; 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 connecting piece acting on the side of the pelvis of the human body is in threaded transmission connection with the screw rod; the front side surface and the rear side surface of the guide block are provided with a first sliding groove; the two cover plates are connected to the front side and the rear side of the guide block in a sliding mode, and a first raised line matched with the first sliding groove is arranged on the inner side of each cover plate; the cover plate is fixedly connected with a connecting piece acting on the side edge of the pelvis of the human body.

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 second vertical raised line, the inner side of the screw rod installation seat is provided with a second vertical sliding groove, the second raised line is matched with the second vertical sliding groove, the front side face and the rear side face of the screw rod installation seat are provided with a third transverse sliding groove, the cross section sizes of the third sliding groove and the first sliding groove are consistent, and when the screw rod installation seat and the guide block are installed together, the third sliding groove is in butt joint with the first sliding groove.

Preferably, the second sliding groove and the third sliding groove are dovetail grooves, and the first protruding strip and the second protruding strip are dovetail-shaped protruding strips.

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

1. after the pelvis restorer is fixed on a patient, the pressurizing locking mechanism can be used for pushing the connecting piece acting on the side edge of the pelvis of the human body at one side to the other side for a short distance for pressurizing, 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 caused by pressurizing transition;

2. the pressurizing locking mechanism is driven manually by utilizing a lead screw transmission principle, and utilizes the guide block and the cover plate to accurately guide the movement of the connecting piece, the front side surface and the rear side surface of the guide block are provided with the first sliding grooves, the inner side of the cover plate is provided with the first raised lines matched with the first sliding grooves, the first sliding grooves and the first raised lines are matched to ensure that the cover plate stably moves, and the movement precision is high;

3. be provided with vertical sand grip two on the both ends face about the guide block, the inboard of lead screw mount pad is provided with vertical spout two, and sand grip two matches with spout two, and when concrete assembly, at first install the lead screw on two lead screw mount pads, then with the lead screw mount pad through spout two with sand grip two cooperation follow supreme cartridge from supreme cartridge about the guide block down, fasten with the bolt at last, simple to operate, the precision is high.

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 is a perspective view of a pelvis reduction device with a compression locking mechanism of the present embodiment (a pressing plate assembly is installed and a handle is used as a lead screw rotation operation member).

Fig. 2 is a front view of the pelvic repositor of fig. 1.

Fig. 3 is a cross-sectional view of fig. 2.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

FIG. 5 is an expanded view of the pressure lock mechanism of the present embodiment (the hand wheel is used as the screw rotation operation member).

Description of reference numerals:

a pressurizing and locking mechanism 1; a left fixing frame 2; a right fixing frame 3; a ball head universal rod 4; an outer sleeve 5; a platen assembly 6;

a threaded hole 41;

a screw rod 11; a screw rod mounting seat 12; a guide block 13; a cover plate 14; a handle 15; a hand wheel 16;

a second chute 121; chute three 122;

a first sliding groove 131; a second raised strip 132; the first convex strip 141.

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. 1-5.

The embodiment discloses a pressurization locking mechanism of pelvis restorer for finely adjusting, impel and pressurize the connecting piece that acts on human pelvis side, what fig. 1 shows is the pelvis restorer that has this pressurization locking mechanism 1, the pelvis restorer in the picture is including opening angle adjustable left mount 2 and right mount 3, the connecting piece that acts on human pelvis side adopts the mode of bulb universal rod 4 and outer tube 5 combination, 4 lower extremes of bulb universal rod and outer tube 5 fixed connection, 4 upper ends of left bulb universal rod and 2 fixed connections of left mount, 4 upper ends of bulb universal rod on right side and this pressurization locking mechanism 1 adjustable connection, the top of this pressurization locking mechanism 1 and the tip fixed connection of right mount 3. The outer sleeve 5 can be used for installing a bone screw inner sleeve or a pressure plate component 6, when the bone screw inner sleeve is installed in the outer sleeve 5, the pelvis restorer can be used for operating room scenes and used for clamping bone screws on two sides of a pelvis, and when the pressure plate component 6 is installed on the outer sleeve 5, the pelvis restorer can be used for emergency scenes and used for clamping two sides of the pelvis to stop bleeding in time.

In this embodiment, the pressurizing and locking mechanism 1 includes a screw 11, a screw mount 12, a guide block 13, and a cover plate 14. The guide block 13 is fixedly connected with the end part of the right fixing frame 3 through a screw; two screw rod mounting seats 12 are arranged and respectively mounted at the left end and the right end of the guide block 13, the screw rod 11 is supported and mounted by the two screw rod mounting seats 12, and one end of the screw rod 11 penetrates out of the screw rod mounting seats 12 and is connected with a screw rod rotation operating part; the top of the ball head universal rod 4 on the right side is provided with a threaded hole 41, and the threaded hole 41 is in threaded transmission connection with the screw rod 11. In order to ensure that the movement precision of the ball-head universal rod 4 is high, a cover plate 14 is fixedly arranged on each of the front side and the rear side of the top of the ball-head universal rod 4, sliding grooves one 131 are formed in the front side and the rear side of the guide block 13, a convex strip one 141 matched with the sliding grooves one 131 is arranged on the inner side of the cover plate 14, and the cover plate 14 is in sliding connection with the guide block 13.

In this embodiment, be provided with two vertical sand grips 132 on the both ends face about the guide block 13, the inboard of lead screw mount pad 12 is provided with two vertical spouts 121, two sand grips 132 and two spout 121 phase-matchs, when concrete assembly, at first install lead screw 11 on two lead screw mount pads 12, then with lead screw mount pad 12 through two spouts 121 and two sand grips 132's cooperation follow supreme cartridge about guide block 13 down both ends, at last with the bolt-up, high durability and convenient installation, high accuracy.

In addition, a third transverse sliding groove 122 is formed in the front side surface and the rear side surface of the screw rod mounting seat 12, the cross section sizes of the third sliding groove 122 and the first sliding groove 131 are consistent, when the screw rod mounting seat 12 and the guide block 13 are mounted together, the third sliding groove 122 is in butt joint with the first sliding groove 131, and the design avoids interference of the screw rod mounting seat 12 on movement of the cover plate 14.

In this embodiment, the second sliding groove 121 and the third sliding groove 122 are dovetail grooves, and the first protruding strip 141 and the second protruding strip 132 are dovetail protruding strips.

In this embodiment, the lead screw rotation operation member may be a handle 15 or a hand wheel 16, and the end of the lead screw 11, which is used for being connected with the handle 15 or the hand wheel 16, is of a hexagonal shaft structure. The end of the handle 15 is provided with a hexagon socket, when in operation, the handle 15 is arranged at the end of the hexagon shaft of the screw rod 11 through the hexagon socket, the handle 15 is pulled to be adjusted, the handle 15 can be removed after the adjustment is completed, the handle 15 is equivalent to a spanner, but the handle 15 has the defect that the handle is easy to lose after the removal. When the hand wheel 16 is adopted, the hand wheel 16 can be fixedly arranged at the end part of the hexagonal shaft of the screw rod 11, so that the defect that the handle 15 is easy to lose is overcome, and the adoption of the handle 15 or the hand wheel 16 is determined according to the specific requirements of doctors.

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 (4)

1. A pressurization locking mechanism of a pelvis restorer is used for finely adjusting, propelling and pressurizing a connecting piece acting on the side edge of the pelvis of a human body, and is characterized in that: the pressurizing locking mechanism comprises a screw rod (11), a screw rod mounting seat (12), a guide block (13) and a cover plate (14); the guide block (13) is fixedly connected with the end part of the fixing frame at one side of the pelvis restorer; the two screw rod mounting seats (12) are respectively mounted at the left end and the right end of the guide block (13), the screw rod (11) is supported and mounted by the two screw rod mounting seats (12), and one end of the screw rod (11) penetrates out of the screw rod mounting seats (12) and is connected with a screw rod rotation operating part; the connecting piece acting on the side of the pelvis of the human body is in threaded transmission connection with the screw rod (11); the front side surface and the rear side surface of the guide block (13) are provided with a first sliding groove (131); the two cover plates (14) are arranged and are connected to the front side and the rear side of the guide block (13) in a sliding mode, and a convex strip I (141) matched with the sliding groove I (131) is arranged on the inner side of each cover plate (14); the cover plate (14) is fixedly connected with a connecting piece acting on the side of the pelvis of the human body.

2. The compression locking mechanism of a pelvic repositor of claim 1, wherein: the lead screw rotation operating piece adopts handle (15) or hand wheel (16), the one end that is used for being connected with handle (15) or hand wheel (16) on lead screw (11) adopts the hexagonal shaft structure.

3. The compression locking mechanism of a pelvic repositor of claim 1, wherein: the guide block (13) is provided with vertical second raised lines (132) on the left end face and the right end face, the inner side of the screw rod installation seat (12) is provided with a vertical second sliding groove (121), the second raised lines (132) are matched with the second sliding groove (121), the front side face and the rear side face of the screw rod installation seat (12) are provided with a horizontal third sliding groove (122), the cross section sizes of the third sliding groove (122) and the first sliding groove (131) are consistent, and when the screw rod installation seat (12) and the guide block (13) are installed together, the third sliding groove (122) is in butt joint with the first sliding groove (131).

4. The compression locking mechanism of the pelvic repositor of claim 3, wherein: the second sliding groove (121) and the third sliding groove (122) are all dovetail grooves, and the first protruding strip (141) and the second protruding strip (132) are both dovetail-shaped protruding strips.

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