CN217090881U

CN217090881U - Pelvis screw guider

Info

Publication number: CN217090881U
Application number: CN202220225511.3U
Authority: CN
Inventors: 王明辉; 何大庆; 谢跃华
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-08-02
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a pelvis screw director, include: the connecting rod, the connecting rod top is rotated installation lift adjustable screw, be provided with the angle modulation subassembly on the lift screw, angle modulation subassembly lateral wall fixed mounting adjusts the pole, adjust pole right-hand member centre gripping set screw drill bit uide bushing, angle modulation subassembly left end fixed mounting handle, the adjustment through screw rod lift and drill bit uide bushing angle realizes the arbitrary regulation of sleeve and lift screw distal end setpoint distance and angle, it reaches greatly to solve the doctor of performing the operation and rely on the drilling of screw to put the nail error, easily hinder turnover tissue scheduling problem, the angle and the degree of depth that the doctor can set for the screw drilling wantonly according to the operation needs in the art, realize accurate drilling and accurate nail of putting in the art, doctor of performing the operation easy operation, the accuracy is high, provide convenience for the doctor, reduce the operation degree of difficulty.

Description

Pelvis screw guider

Technical Field

The utility model relates to the technical field of medical appliances, particularly, relate to pelvis screw director for operation instrument.

Background

In the operation of orthopedics pelvis fracture, need to carry out steel sheet, screw fixation after restoreing to the fracture, exist when the screw is put into: 1. the pelvis bone appearance is irregular to be placed and is increased with difficulty, 2 tissue organs such as bladder, rectum, sciatic nerve and the like around the pelvis are complex and are easy to be injured by mistake, 3 the exposure difficulty is caused by more tissues around the pelvis, if blind striking is adopted, accurate nail placement cannot be guaranteed, the screw placement length is short and the position is not optimal due to the difficulties when a doctor evaluates the nail placement at present, the strength of steel plate screw fixation is influenced, and postoperative fracture is caused to shift again, so that the pelvis screw guide is provided.

SUMMERY OF THE UTILITY MODEL

According to the utility model discloses an implement the purpose and solve that the error that the screw was put into is big, vice damage risk is high, put into the big problem of the degree of difficulty, realize accurate drilling and put the nail, easy operation reduces the operation degree of difficulty, improves the operation curative effect.

An embodiment of the utility model provides a pelvis screw director, include: the drill bit guide sleeve is fixedly arranged on the side wall of the angle adjusting assembly, the right end of the adjusting rod is clamped and fixed with the drill bit guide sleeve, and the left end of the angle adjusting assembly is fixedly provided with a handle; the angle adjusting assembly is used for being matched with the adjusting rod so as to enable the drill bit guide sleeve to rotate relative to the connecting rod.

According to the pelvis screw guider provided by the utility model, doctors can preset any angle, depth and position of screw drilling holes according to requirements through the drill bit guide sleeve in pelvis operation, thus realizing flexible adjustment and accurate screw placement, the guider performs downward guiding movement, the inner wall of the drill bit guide sleeve is subjected to smooth treatment by adopting a grinding process, so that the screw can be placed in the drill bit guide sleeve to move, the drill bit guide sleeve is arranged on the adjusting rod in a clamping and fixing mode, can be disassembled to adapt to screws of different types and sizes so as to guide more accurately, reduce deviation in the screw fixing process, the angle adjustment of the drill bit lifting guide sleeve can be carried out through the angle adjusting component so as to adapt to different positions of patients and different operation environments of doctors, and therefore the screw can obtain good holding force and fixing effect on bones.

Lifting screw, drill bit guide sleeve and connect the connecting rod all can dismantle, and be length far more than the width to medical personnel concentrate collection and disinfection processing.

In addition, the embodiments provided by the embodiments of the present invention may also have the following additional technical features:

in any of the above embodiments, the recliner assembly includes: the ball body, spheroid lateral wall fixed connection adjusts the pole, the spheroid lateral wall is provided with first arc splint and second arc splint respectively, first arc splint left end and second arc splint left end are connected, second arc splint spiro union lifting screw.

In this embodiment, can drive through spheroidal rotation and adjust pole and drill bit uide sleeve and adjust with abundanter angle, and can realize through a continuous operation, need not to adopt the regulation more than two coordinate axes, the calibration rate in adjusting has been accelerated, cooperate with lifting screw through second arc splint, make lifting screw can remove for the spheroid, so that drive the spheroid through lifting screw, adjust pole and drill bit uide sleeve and carry out not co-altitude's regulation, when carrying out the centre gripping to the spheroid through first arc splint and second arc splint, can lead commentaries on classics and stable support to spheroidal rotation.

In the above embodiment, the fastening screw is rotatably installed on the upper surface of the second arc-shaped clamping plate, the threaded hole is formed on the upper surface of the first arc-shaped clamping plate, and the fastening screw is in threaded connection with the inner wall of the threaded hole.

In this embodiment, adjust the distance between first arc splint and the second arc splint through fixed screw for first arc splint and second arc splint can produce the centre gripping dynamics of different degrees to the spheroid, so that carry out the adaptation to the state when the spheroid need rotate and when needs fixed locking, have improved the stability in use of spheroid at different states.

In any of the above embodiments, the fastening screw has a driving ring fixedly mounted on a side wall thereof, and the driving ring is disposed between the first arc-shaped clamping plate and the second arc-shaped clamping plate.

In this embodiment, through install the swivel becket additional on fastening screw, twist through the staff and move the driving ring and can drive fastening screw and rotate, improved the arm of force to fastening screw, the person of facilitating the use operates, and sets up the driving ring between first arc splint and second arc splint, can carry out the top and shelter from of below to the driving ring, avoids outside effort direct contact driving ring.

In any of the above embodiments, the lower end of the inner wall of the first arc-shaped clamping plate and the upper end of the inner wall of the second arc-shaped clamping plate are respectively and fixedly provided with the rubber strips, the side walls of the rubber strips are attached to the side wall of the sphere, and the two rubber strips are arranged along the center of the sphere in an up-down symmetrical manner.

In this embodiment, through the rubber strip for first arc splint and second arc splint can carry out inseparabler centre gripping fixed to the spheroid, avoid the spheroid free rotation under the exogenic action, have guaranteed that in use's spheroid is stable, through following two rubber strips spheroidal central longitudinal symmetry sets up for the centre of sphere is located between two rubber strips, helps spheroidal stable centre gripping fixed.

In any of the above embodiments, the bottom rod is fixedly installed on the lower surface of the connecting rod, the upper end of the connecting rod is rotatably connected with the rotating guide rod, and the upper surface of the rotating guide rod is rotatably connected with the lifting screw rod.

In this embodiment, the sill bar so that this device is fixed and is used, the end of sill bar can correspond drill bit guide sleeve's bottom and use to the doctor carries out the butt joint calibration in advance on one's body at the patient, has improved the use degree of accuracy of device, adopts to lead the bull stick to make things convenient for the sill bar and connect the connecting rod to rotate, so that carry out the adaptation to the different positions of drill bit guide sleeve end.

In any of the above embodiments, both ends are hinged joint telescopic link respectively around adjusting the pole lateral wall, the draw-in groove is seted up to the telescopic link lateral wall, drill bit guide sleeve outer wall is provided with the snap ring, the snap ring joint is fixed two between the telescopic link, two adopt the spring to be connected between the telescopic link.

In this embodiment, through two can self flexible and relative pivoted telescopic links each other, and adopt the spring to connect between them, make two splint can carry out automatic re-setting after rotating, and produce the fixed drill bit guide sleeve of clamp force, through the size selection to the snap ring internal diameter, can select fixedly to not unidimensional drill bit guide sleeve, can lead to the slip to the screw of different models and size through selecting the drill bit guide sleeve to different internal diameter sizes, can adapt to different kinds of screw, so that the doctor selects according to patient's actual conditions, the telescopic link can carry out length adjustment in advance, so that adapt to the use in the actual operation, the telescopic link right-hand member adopts the arc setting, so that it decides to the better clamp fastening of snap ring memorability.

In any of the above embodiments, the positioning plate is fixedly mounted on the upper surface of the lifting screw, the positioning hole is formed in the upper surface of the positioning plate, the positioning rod is inserted into the inner wall of the positioning hole, the insertion hole is formed in the upper surface of the first arc-shaped clamping plate, and the positioning rod is inserted into the inner wall of the insertion hole.

In this embodiment, through locating hole and the jack of seting up to peg graft the locating lever jointly with the cooperation of second arc splint, make the lifting screw can not rotate relatively for the spheroid, so that carry out the screw derivation operation in the operation, avoided the lifting screw in the operation to take place the skew.

Additional aspects and advantages of embodiments in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments in accordance with the invention.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the sphere and the connection structure thereof according to the present invention;

FIG. 3 is a schematic view of the adjusting lever and the connecting structure thereof according to the present invention;

fig. 4 is a schematic view of the screw rod and the connection structure thereof.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

the drill bit comprises a connecting rod 1, a bottom rod 101, a guide rotating rod 102, a angle adjusting component 2, a sphere 201, a first arc-shaped clamping plate 202, a threaded hole 2021, a jack 2022, a second arc-shaped clamping plate 203, a 2031 screwed ring, a fastening screw 204, a transmission ring 205, a rubber strip 206, a lifting screw 3, a positioning plate 301, a 4-adjustment rod, a 401-telescopic rod, a 4011 clamping groove, a 402-spring, a 5-bit guide sleeve, a 501-snap ring, a 6-handle, a 7-positioning hole and an 8-positioning rod.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Referring to fig. 1-4, an embodiment of a first aspect of the present invention provides a pelvic screw guide, comprising: the drill bit angle adjusting mechanism comprises a connecting rod 1, a lifting screw 3 is rotatably mounted at the top of the connecting rod 1, an angle adjusting assembly 2 is arranged on the lifting screw 3, an adjusting rod 4 is fixedly mounted on the side wall of the angle adjusting assembly 2, a drill bit guide sleeve 5 is clamped and fixed at the right end of the adjusting rod 4, and a handle 6 is fixedly mounted at the left end of the angle adjusting assembly 2; the angle adjusting assembly 2 is used for being matched with the adjusting rod 4 so as to enable the drill bit guide sleeve 5 to rotate relative to the connecting rod 1.

According to the pelvis screw guider provided by the utility model, the screw for fixing the bone of a patient in the orthopedic operation performed by a doctor is guided downwards by the drill guide sleeve 5, the inner wall of the drill guide sleeve 5 is smoothly processed by the grinding process so as to be placed in the drill guide sleeve 5 for moving, the drill guide sleeve 5 is arranged on the adjusting rod 4 in a clamping and fixing way and can be disassembled so as to adapt to screws with different types and sizes so as to perform more accurate guiding, the deviation in the screw fixing process is reduced, the angle adjustment of the drill guide sleeve 5 can be carried out by the angle adjusting component 2 so as to adapt to different positions of the patient and different operation methods of the doctor, so that the screw can be better fixed on the bone of the patient, the drill guide sleeve 5 can be driven by the lifting screw rod 3 to move up and down with the connecting rod 1, so that the drill guide sleeve 5 can be brought close to or away from the surgical site of the patient, enabling the surgeon to perform the surgery at a suitable height and distance;

the screw is guided to move by the drill guide sleeve 5, so that a surgeon does not need to perform temporary fixation and angle calibration by virtue of surgical experience, the orientation of the drill guide sleeve 5 and the height of the lower port can be closer to the requirements of the surgeon on the angle and the height by virtue of the adjusting assembly and the lifting screw 3, the experience requirements of the surgeon are reduced, and the accuracy and the stability of the screw application point position in the surgery are improved;

lifting screw 3, drill bit guide sleeve 5 and connect connecting rod 1 all can dismantle, and be length and be far greater than the width to medical personnel concentrate collection and disinfection processing.

In any of the above embodiments, the recliner assembly 2 includes: spheroid 201, spheroid 201 lateral wall fixed connection adjust pole 4, and spheroid 201 lateral wall is provided with first arc splint 202 and second arc splint 203 respectively, and first arc splint 202 left end and second arc splint 203 left end are connected, and second arc splint 203 spiro union lifting screw 3.

In this embodiment, rotation through spheroid 201 can drive and adjust pole 4 and drill bit guide sleeve 5 with richer angle and adjust, and can realize through a continuous operation, need not to adopt the regulation more than two coordinate axes, the calibration speed in adjusting has been accelerated, cooperate with lifting screw 3 through second arc splint 203, make lifting screw 3 can remove for spheroid 201, so that drive spheroid 201 through lifting screw 3, adjust pole 4 and drill bit guide sleeve 5 and carry out the regulation of co-altitude, when carrying out the centre gripping to spheroid 201 through first arc splint 202 and second arc splint 203, can lead commentaries on classics and stable support to the rotation of spheroid 201.

Specifically, the second arc-shaped clamping plate 203 is provided with a screw joint ring 2031, and the inner wall of the screw joint ring 2031 is provided with an inner thread screwed with the lifting screw 3, so that the lifting screw 3 can be stably screwed.

In any of the above embodiments, the fastening screw 204 is rotatably mounted on the upper surface of the second arc-shaped clamp plate 203, the threaded hole 2021 is formed on the upper surface of the first arc-shaped clamp plate 202, and the fastening screw 204 is screwed with the inner wall of the threaded hole 2021.

In this embodiment, adjust the distance between first arc splint 202 and the second arc splint 203 through the set screw for first arc splint 202 and second arc splint 203 can produce the clamping force degree of different degrees to spheroid 201, so that to carry out the adaptation to the state when spheroid 201 need rotate with when needs fixed locking, have improved the stability in use of spheroid 201 at different states.

In any of the above embodiments, the fastening screw 204 is fixedly installed with the driving ring 205 on the sidewall, and the driving ring 205 is disposed between the first arc-shaped clamping plate 202 and the second arc-shaped clamping plate 203.

In this embodiment, through install the swivel becket additional on fastening screw 204, twist through the staff and move driving ring 205 and can drive fastening screw 204 and rotate, improved the arm of force to fastening screw 204, the person of facilitating the use operates, and sets up driving ring 205 between first arc splint 202 and second arc splint 203, can carry out the top and shelter from of below to driving ring 205, avoids external effort direct contact driving ring 205.

In any of the above embodiments, the rubber strips 206 are respectively and fixedly installed at the lower end of the inner wall of the first arc-shaped clamping plate 202 and the upper end of the inner wall of the second arc-shaped clamping plate 203, the side walls of the rubber strips 206 are attached to the side walls of the sphere 201, and the two rubber strips 206 are arranged up and down symmetrically along the center of the sphere 201.

In this embodiment, through rubber strip 206 for first arc splint 202 and second arc splint 203 can carry out inseparabler centre gripping fixedly to spheroid 201, avoid spheroid 201 free rotation under the exogenic action, have guaranteed that spheroid 201 in use is stable, through setting up two rubber strips 206 along the central longitudinal symmetry of spheroid 201, make the centre of sphere lie in between two rubber strips 206, help the stable centre gripping of spheroid 201 to fix.

In any of the above embodiments, the bottom rod 101 is fixedly installed on the lower surface of the connecting rod 1, the upper end of the connecting rod 1 is rotatably connected to the rotation guide rod 102, and the upper surface of the rotation guide rod 102 is rotatably connected to the lifting screw 3.

In this embodiment, the bottom rod 101 is used for fixing and using the device, the end of the bottom rod 101 can be used corresponding to the bottom end of the drill guide sleeve 5, so that the doctor can perform the pre-docking calibration on the patient, the use accuracy of the device is improved, and the bottom rod 101 and the connecting rod 1 can be conveniently rotated by adopting the guide and rotation rod 102, so that the different positions of the end of the drill guide sleeve 5 can be adapted.

In any of the above embodiments, the front end and the rear end of the side wall of the adjusting rod 4 are respectively hinged with the telescopic rods 401, the side wall of each telescopic rod 401 is provided with the clamping groove 4011, the outer wall of each drill bit guide sleeve 5 is provided with the clamping ring 501, the clamping rings 501 are clamped and fixed between the two telescopic rods 401, and the two telescopic rods 401 are connected through the springs 402.

In this embodiment, through two telescopic links 401 that can self stretch out and draw back and relative pivoted each other, and adopt spring 402 to connect between them, make two splint can carry out automatic re-setting after rotating, and produce the fixed drill guide sleeve 5 of clamp force, through selecting to the size of snap ring 501 internal diameter, can select fixedly to the drill guide sleeve 5 of unidimensional, can guide to the screw of different models and size through selecting to the drill guide sleeve 5 of different internal diameter size and slide, can adapt to different kinds of screw, so that the doctor selects according to patient's actual conditions, telescopic link 401 can carry out length control in advance, so that adapt to the use in the actual operation, telescopic link 401 right-hand member adopts the arc setting, so that it is fixed to the better clamp of snap ring 501 memorability.

In any of the above embodiments, the positioning plate 301 is fixedly mounted on the upper surface of the lifting screw 3, the positioning hole 7 is formed on the upper surface of the positioning plate 301, the positioning rod 8 is inserted into the inner wall of the positioning hole 7, the insertion hole 2022 is formed on the upper surface of the first arc-shaped clamping plate 202, and the positioning rod 8 is inserted into the inner wall of the insertion hole 2022.

In this embodiment, the positioning rod 8 is inserted and connected together with the second arc-shaped clamping plate 203 through the positioning hole 7 and the insertion hole 2022, so that the lifting screw 3 does not rotate relatively to the ball 201, the screw guiding operation in the operation is performed, and the lifting screw 3 is prevented from deviating in the operation.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A pelvic screw guide, comprising: the drill bit angle adjusting mechanism comprises a connecting rod (1), wherein a lifting screw (3) is rotatably mounted at the top of the connecting rod (1), an angle adjusting component (2) is arranged on the lifting screw (3), an adjusting rod (4) is fixedly mounted on the side wall of the angle adjusting component (2), a drill bit guide sleeve (5) is clamped and fixed at the right end of the adjusting rod (4), and a handle (6) is fixedly mounted at the left end of the angle adjusting component (2);

the angle adjusting assembly (2) is used for being matched with the adjusting rod (4) so that the drill bit guide sleeve (5) rotates relative to the connecting rod (1) to adjust the angle.

2. The pelvic screw guide according to claim 1, wherein the recliner assembly (2) comprises: spheroid (201), spheroid (201) lateral wall fixed connection adjusts pole (4), spheroid (201) lateral wall is provided with first arc splint (202) and second arc splint (203) respectively, first arc splint (202) left end and second arc splint (203) left end are connected, second arc splint (203) spiro union lifting screw (3).

3. The pelvic screw guide according to claim 2, wherein a fastening screw (204) is rotatably mounted on the upper surface of the second arc-shaped clamping plate (203), a threaded hole (2021) is formed in the upper surface of the first arc-shaped clamping plate (202), and the fastening screw (204) is in threaded connection with the inner wall of the threaded hole (2021).

4. The pelvic screw guide according to claim 3, wherein the fastening screw (204) is laterally fixed with a transmission ring (205), the transmission ring (205) being arranged between the first arc-shaped clamping plate (202) and the second arc-shaped clamping plate (203).

5. The pelvic screw guide device according to claim 2, wherein rubber strips (206) are fixedly mounted at the lower end of the inner wall of the first arc-shaped clamping plate (202) and the upper end of the inner wall of the second arc-shaped clamping plate (203), the side walls of the rubber strips (206) are attached to the side walls of the sphere (201), and the two rubber strips (206) are arranged up and down symmetrically along the center of the sphere (201).

6. The pelvic screw guide device according to claim 1, wherein the lower surface of the connecting rod (1) is fixedly provided with a bottom rod (101), the upper end of the connecting rod (1) is rotatably connected with a rotation guide rod (102), and the upper surface of the rotation guide rod (102) is rotatably connected with a lifting screw (3).

7. The pelvic screw guide device according to claim 1, wherein the front end and the rear end of the side wall of the adjusting rod (4) are respectively hinged with a telescopic rod (401), a clamping groove (4011) is formed in the side wall of the telescopic rod (401), a clamping ring (501) is arranged on the outer wall of the drill guide sleeve (5), the clamping ring (501) is clamped and fixed between the two telescopic rods (401), and the two telescopic rods (401) are connected through a spring (402).

8. The pelvic screw guide device according to claim 2, wherein a positioning plate (301) is fixedly mounted on the upper surface of the lifting screw rod (3), a positioning hole (7) is formed in the upper surface of the positioning plate (301), a positioning rod (8) is inserted into the inner wall of the positioning hole (7), a jack (2022) is formed in the upper surface of the first arc-shaped clamping plate (202), and the positioning rod (8) is inserted into the inner wall of the jack (2022).