CN211934436U

CN211934436U - Implant tool for orthopaedic prosthesis fixation

Info

Publication number: CN211934436U
Application number: CN202020157319.6U
Authority: CN
Inventors: 朱卫国
Original assignee: Changzhou Wujin Peoples Hospital
Current assignee: Changzhou Wujin Peoples Hospital
Priority date: 2020-02-10
Filing date: 2020-02-10
Publication date: 2020-11-17
Anticipated expiration: 2030-02-10

Abstract

The utility model relates to an orthopedic surgery technical field especially relates to an implant instrument for orthopedics prosthesis is fixed, including the gib block, the top fixed mounting of gib block has motor and L shape fixed plate, and the motor is located the horizontal support arm of L shape fixed plate under, and the output shaft fixedly connected with of motor rotates the threaded rod of being connected with L shape fixed plate horizontal support arm. The utility model can lead the orthopaedic prosthesis to obtain better adhesion, thus leading the orthopaedic prosthesis to be absorbed and fixed from one side of the orthopaedic prosthesis, leading the prosthesis to avoid the contact of the apparatus and the wound of the patient as much as possible in the implantation process, and reducing the probability of secondary injury; the adsorption of the orthopaedic prosthesis and the separation of the prosthesis from the device after the prosthesis is implanted are facilitated; the prosthesis can guide the screw more conveniently in the implantation process, so that the scattering of the screw is avoided, the prosthesis implantation safety is ensured, the workload of medical personnel is reduced, and the effective operation of the patient operation is protected.

Description

Implant tool for orthopaedic prosthesis fixation

Technical Field

The utility model relates to an orthopedic surgery technical field especially relates to an implant instrument for orthopedics prosthesis is fixed.

Background

The prosthesis, called prosthesis in medicine, is a medical apparatus for replacing a certain limb, organ or tissue of human body, and includes many types of prostheses, such as orthopedic prostheses, breast prostheses, prosthesis of artificial body, etc. The existing medical equipment is used for clamping the prosthesis in the process of implantation, and the existing instruments are easy to contact with the wound in the process of fixing and implanting the prosthesis, so that the wound of a patient is easy to be damaged in the process of implantation of the prosthesis; and many times the prosthesis needs to be screwed by screws after being implanted, so that the prosthesis can be fixed, and the screws need to be screwed and fixed according to specific conditions in the process of screwing and fixing (the defects of the prior art are introduced, but the screws are small in size, are not easy to clamp when being screwed and fixed, and are easy to fall off, so that the difficulty of prosthesis implantation operation is increased, and secondary injury is easily caused to wounds of patients, so that an implantation tool for fixing the orthopaedic prosthesis is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems that in the prior art, instruments and wounds are too much in contact, secondary injury is easily caused, a fixed screw is not easy to be screwed, operation workload is increased, and providing an implanting tool for fixing an orthopaedic prosthesis.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an implantation tool for fixing an orthopaedic prosthesis, which comprises a guide bar, wherein the top end of the guide bar is fixedly provided with a motor and an L-shaped fixed plate, the motor is positioned under a horizontal support arm of the L-shaped fixed plate, an output shaft of the motor is fixedly connected with a threaded rod which is rotatably connected with the horizontal support arm of the L-shaped fixed plate, the outer side of a vertical support arm of the L-shaped fixed plate is provided with a guide ring, one side of the guide ring is fixedly provided with a rotary damper, one side of the rotary damper is connected with an auxiliary tool through a connecting rod, the implantation tool comprises a mounting plate, both sides of the mounting plate are provided with strip-shaped openings, screw leading-in mechanisms are arranged at the strip-shaped openings, the mounting plate is provided with a circular through hole and screw thread through holes which are respectively arranged at both sides of the two groups of circular through holes, the mounting plate, the bottom fixed mounting of screw thread sleeve has the connecting plate, and the bottom of connecting plate bonds there is the rubber pad, and the bottom of rubber pad is scribbled and is equipped with pressure sensitive adhesive tape, and the top of connecting plate has the guiding mechanism with mounting plate bottom fixed connection in screw thread sleeve's both sides fixed mounting, and the mounting panel has the second screw rod at the equal threaded connection of circular through-hole department, and the one end that the second screw rod extends to the mounting panel lower part all bonds there is the pressing plate.

Preferably, the screw guiding-in mechanism includes the deflection pipe, and the equal fixedly connected with in both sides of deflection pipe rotates the deflection axle of being connected at bar opening part and mounting panel, and the both sides inner wall fixed mounting of deflection pipe has the guide block of vertical setting, and the inside cover of deflection pipe is equipped with one side and is equipped with open-ended sliding sleeve, and sliding sleeve's both sides all offer with the bar recess of guide block adaptation.

Preferably, the bottom end of the sliding sleeve is provided with a through hole communicated with the side opening, the inner wall of the bottom end of the sliding sleeve is fixedly provided with a rubber sleeve, the section of the rubber sleeve is U-shaped, and the upper part of the inner wall of the rubber sleeve is arc-shaped.

Preferably, the two sides of the sliding sleeve close to the opening are both provided with corresponding bar-shaped sliding grooves in the vertical direction, and the bar-shaped sliding grooves are connected with a closing plate in a sliding mode.

Preferably, vertical direction gibs are all installed to the both sides of the vertical support arm of L-shaped fixed plate.

Preferably, the inner walls of the two sides of the guide ring are provided with guide grooves matched with the guide strips, and one side of the guide ring is provided with a threaded through hole matched with the threaded rod.

Preferably, the distance between the second screws is greater than the length of the connecting plate.

Preferably, guiding mechanism includes the fixed sleeving with connecting plate top end fixed connection, and fixed sleeving's inside cover is equipped with mounting panel bottom fixed connection's dead lever, and the dead lever stretches into fixed sleeving's one end fixed mounting has the anti-drop board, and the diameter of anti-drop board is greater than fixed sleeving's top open-ended internal diameter.

Preferably, a plurality of groups of illuminating lamps are uniformly arranged on one side, close to the auxiliary tool, of the vertical supporting arm of the L-shaped fixing plate.

The utility model has the advantages that:

1. firstly, the orthopedic prosthesis can be well adhered through the arrangement of the connecting plate, the rubber pad and the pressure-sensitive adhesive tape, so that the orthopedic prosthesis can be adsorbed and fixed from one surface of the orthopedic prosthesis, the contact between an instrument and a wound of a patient can be avoided as far as possible in the implanting process of the orthopedic prosthesis, and the probability of secondary injury is reduced;

2. the first screw, the second screw, the threaded sleeve, the guide mechanism and the pressing plate are arranged, so that the adsorption of the orthopaedic prosthesis and the separation of the implanted prosthesis from the device are facilitated;

3. through the arrangement of the screw guiding-in mechanism, the screw can be guided conveniently in the implanting process of the prosthesis, the scattering of the screw is avoided, the implanting safety of the prosthesis is ensured, the workload of medical personnel is reduced, and the effective operation of the patient operation is protected.

Drawings

Fig. 1 is a front view schematically illustrating an implantation tool for fixing an orthopaedic prosthesis according to the present invention;

FIG. 2 is a schematic side view of an auxiliary tool of the implant tool for orthopaedic prosthesis fixation according to the present invention;

fig. 3 is a schematic top view of a guide ring of an implantation tool for orthopaedic prosthesis fixation according to the present invention;

FIG. 4 is a schematic cross-sectional view of a guiding mechanism of an implant tool for orthopaedic prosthesis fixation according to the present invention;

FIG. 5 is a schematic side view of a portion of an implant tool for orthopaedic prosthesis fixation according to the present invention;

fig. 6 is a schematic top view of a screw introduction mechanism of an implant tool for orthopaedic prosthesis fixation according to the present invention;

fig. 7 is a schematic side view of a screw introduction mechanism of an implant tool for fixing an orthopaedic prosthesis according to the present invention.

In the figure: the device comprises a base 1, a motor 2, a threaded rod 3, a guide ring 4, an L-shaped fixing plate 5, an illuminating lamp 6, a rotary damper 7, a connecting rod 8, an auxiliary tool 9, a guide strip 10, a mounting plate 11, a screw introducing mechanism 12, a first screw 13, a pressing plate 14, a connecting plate 15, a threaded sleeve 16, a pressure-sensitive adhesive tape 17, a rubber pad 18, a guide mechanism 19, a second screw 20, a deflection pipe 21, a deflection shaft 22, a closing plate 23, a rubber sleeve 24, a guide block 25, an anti-falling plate 26, a fixing rod 27, a fixing sleeve 28 and a sliding sleeve 29.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, an implanting tool for fixing an orthopaedic prosthesis comprises a guide bar 10, a motor 2 and an L-shaped fixing plate 5 are fixedly installed at the top end of the guide bar 10, the motor 2 is positioned under a horizontal support arm of the L-shaped fixing plate 5, an output shaft of the motor 2 is fixedly connected with a threaded rod 3 rotatably connected with the horizontal support arm of the L-shaped fixing plate 5, a guide ring 4 is arranged on the outer side of a vertical support arm of the L-shaped fixing plate 5, a rotary damper 7 is fixedly installed on one side of the guide ring 4, one side of the rotary damper 7 is connected with an auxiliary tool 9 through a connecting rod 8, the implanting tool comprises a mounting plate 11, strip-shaped openings are respectively formed in both sides of the mounting plate 11, screw introducing mechanisms 12 are respectively arranged at the strip-shaped openings, a circular through hole and screw through holes respectively formed in both sides of the two groups of circular through holes are formed, first screw rod 13 extends to the outside threaded connection of mounting panel 11 downside has threaded sleeve 16, threaded sleeve 16's bottom fixed mounting has connecting plate 15, connecting plate 15's bottom bonding has rubber pad 18, pressure sensitive adhesive tape 17 is scribbled to rubber pad 18's bottom, connecting plate 15's top has guiding mechanism 19 with mounting panel 11 bottom fixed connection at threaded sleeve 16's both sides fixed mounting, mounting panel 11 has second screw rod 20 at the equal threaded connection of circular through-hole department, and second screw rod 20 extends to the one end of mounting panel 11 lower part and all bonds and has pressing plate 14.

Further, vertical direction gib block 10 is all installed to the both sides of the vertical support arm of L shape fixed plate 5, and the guide way with gib block 10 adaptation is seted up to the inner wall of guide ring 4 both sides, and its one side is opened and is equipped with the screw thread through-hole with threaded rod 3 adaptations to make things convenient for threaded sleeve 16 to drive rotary damper 7 and appurtenance 9 and remove along vertical direction, thereby realize the migration to orthopedics prosthesis.

Further, the distance between the second screws 20 is greater than the length of the connecting plate 15, so as to avoid the second screws 20 from contacting the connecting plate 15 during the screwing process, ensure that the pressing plate 14 effectively presses the orthopaedic prosthesis, and ensure that the orthopaedic prosthesis is separated from the auxiliary tool 9 to facilitate the subsequent other processes.

Further, guiding mechanism 19 includes the fixed sleeve 28 with connecting plate 15 top fixed connection, and the inside cover of fixed sleeve 28 is equipped with mounting panel 11 bottom fixed connection's dead lever 27, and the one end fixed mounting that dead lever 27 stretched into fixed sleeve 28 has anti-falling plate 26, and the diameter of anti-falling plate 26 is greater than the open-ended internal diameter in top of fixed sleeve 28 for first screw 13 can drive connecting plate 15 at rotatory in-process and remove along vertical direction, thereby guarantees that the prosthesis obtains transporting effectively at the in-process of adhesion.

Further, a plurality of groups of illuminating lamps 6 are uniformly arranged on one side, close to the auxiliary tool 9, of the vertical support arm of the L-shaped fixing plate 5, so that the illumination is ensured to be sufficient in the process of implanting the prosthesis conveniently, and medical staff can observe the specific conditions of the prosthesis implanting process conveniently.

Referring to fig. 5-7, screw guiding-in mechanism 12 includes deflection pipe 21, the equal fixedly connected with in both sides of deflection pipe 21 rotates the deflection shaft 22 of being connected at bar opening part and mounting panel 11, the inside wall fixed mounting in both sides of deflection pipe 21 has the guide block 25 of vertical setting, and the inside cover of deflection pipe 21 is equipped with one side and is equipped with open-ended sliding sleeve 29, the bar recess with guide block 25 adaptation is all seted up to sliding sleeve 29's both sides, thereby make things convenient for the removal of sliding sleeve 29 and the deflection of angle, thereby conveniently leading-in and spacing the screw of fixing usefulness, thereby make things convenient for the further fixed of false body.

Further, the bottom end of the sliding sleeve 29 is provided with a through hole communicated with the side opening, the inner wall of the bottom end of the sliding sleeve is fixedly provided with the rubber sleeve 24, the cross section of the rubber sleeve 24 is U-shaped, and the upper part of the inner wall of the rubber sleeve is arc-shaped, so that in the falling process of the screw, the screw can be well supported and limited in direction, the falling condition of the screw is avoided, and the operation of implanting the prosthesis can be performed more conveniently.

Further, the sliding sleeve 29 is close to the open-ended both sides and all sets up the bar spout of the vertical direction that corresponds, and its sliding connection has closing plate 23 in bar spout department, conveniently carries on spacingly to leading-in screw, prevents that the condition that the screw falls out from taking place.

The working process is as follows: when the orthopaedic prosthesis needs to be implanted, firstly, the orthopaedic prosthesis to be implanted is adhered to the bottom of the pressure-sensitive adhesive tape 17 at the bottom of the connecting plate 15, then the threaded rod 3 is rotated by starting the motor 2, the threaded rod 3 and the guide strip 10 drive the guide ring 4 to perform vertical displacement, the guide ring 4 can drive the rotary damper 7, the connecting rod 8 and the auxiliary tool 9 to move in the vertical direction while performing vertical displacement, so that the auxiliary tool 9 drives the orthopaedic prosthesis to move to the position to be implanted on the wound of the body of the patient, then the orthopaedic prosthesis is adjusted to a proper angle by rotating the auxiliary tool 9, the prosthesis is conveniently embedded, at this time, the connecting plate 15 is vertically moved under the action of the torque of the guide mechanism 19, the first screw 13 and the threaded sleeve 16 by rotating the first screw 13, then the bonded orthopaedic prosthesis gradually goes deep into the wound, then the pressing plate 14 is lowered by rotating the second screw 20, and then one side of the top of the orthopaedic prosthesis is pressed, at the moment, the first screw 13 is rotated, so that the connecting plate 15 is continuously lifted, and then the rubber pad 18 and the pressure-sensitive adhesive tape 17 at the bottom of the connecting plate 15 are separated from the orthopaedic prosthesis, so that the prosthesis can be stably kept at the position to be implanted, in the process, only one surface of the prosthesis is in contact with an instrument in the transportation process, so that excessive contact between the instrument and a window can be well avoided when the prosthesis is implanted into the body of a patient, secondary injury is avoided, and the operation is better ensured;

when the implanted orthopaedic prosthesis needs to be further fixed, the screw guiding mechanism 12 is only deflected to deflect the sliding sleeve 29 inside to a proper angle, at this time, the screw is thrown in a pointed downward manner from the top of the sliding sleeve 29, because the pipe diameter of the sliding sleeve 29 is small, the screw can drop to the inner side of the rubber sleeve 24 in a pointed downward manner, so as to be supported preliminarily, then the side of the sliding sleeve 29 where the opening is opened by sliding the closing plate 23, at this time, the screw obtains the rubber sleeve 24, then the part of the screw is rotated into the orthopaedic prosthesis by a tool, so as to avoid the screw from locking the screw guiding mechanism 12 and the prosthesis, then the screw which is preliminarily screwed in can slide out from the side of the opening of the sliding sleeve 29 by deflecting the screw guiding mechanism 12 reversely, then the screw is screwed, so that the screws can be screwed well into the prosthesis for the purpose of connection fixation, and when this is done, the pressing plate 14 can be released from the pressing relationship with the prosthesis by turning back the second threaded bar 20.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A implant instrument for orthopedics prosthesis is fixed, including gib block (10), a serial communication port, the top fixed mounting of gib block (10) has motor (2) and L shape fixed plate (5), and motor (2) are located the horizontal support arm of L shape fixed plate (5) under, the output shaft fixedly connected with of motor (2) rotates threaded rod (3) of being connected with L shape fixed plate (5) horizontal support arm, the outside of the vertical support arm of L shape fixed plate (5) is equipped with guide ring (4), one side fixed mounting of guide ring (4) has rotary damper (7), one side of rotary damper (7) is connected with appurtenance (9) through connecting rod (8), including mounting panel (11), the bar opening has all been seted up to the both sides of mounting panel (11), and it all is equipped with screw introduction mechanism (12) at the bar opening part, mounting panel (11) are equipped with circular through-hole between two sets of bar openings and divide and locate two sets of circular through-hole The screw thread through hole, mounting panel (11) are provided with first screw rod (13) in circular through hole department rotation, outside threaded connection that first screw rod (13) extend to mounting panel (11) downside has threaded sleeve (16), the bottom fixed mounting of threaded sleeve (16) has connecting plate (15), the bottom of connecting plate (15) bonds there is rubber pad (18), pressure sensitive adhesive tape (17) are scribbled to the bottom of rubber pad (18), the top of connecting plate (15) have guide mechanism (19) with mounting panel (11) bottom fixed connection in the both sides fixed mounting of threaded sleeve (16), mounting panel (11) are at the equal threaded connection of circular through hole department second screw rod (20), and one end that second screw rod (20) extend to mounting panel (11) lower part all bonds and has pressing plate (14).

2. The implanting tool for fixing the orthopaedic prosthesis according to claim 1, wherein the screw guiding mechanism (12) comprises a deflection pipe (21), both sides of the deflection pipe (21) are fixedly connected with a deflection shaft (22) rotatably connected with the mounting plate (11) at the strip-shaped opening, both side inner walls of the deflection pipe (21) are fixedly provided with a vertically arranged guide block (25), a sliding sleeve (29) with an opening at one side is sleeved inside the deflection pipe (21), and both sides of the sliding sleeve (29) are provided with strip-shaped grooves matched with the guide block (25).

3. The implantation tool for the fixation of an orthopaedic prosthesis according to claim 2, wherein the bottom end of the sliding sleeve (29) is provided with a through hole communicating with the lateral opening, and a rubber sleeve (24) is fixedly mounted on the inner wall of the bottom end, the cross section of the rubber sleeve (24) is U-shaped, and the upper part of the inner wall is arc-shaped.

4. The implantation tool for the fixation of an orthopaedic prosthesis according to claim 2, wherein the sliding sleeve (29) is provided with corresponding vertical bar-shaped sliding grooves on both sides close to the opening, and a closing plate (23) is slidably connected to the bar-shaped sliding grooves.

5. The implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein vertical direction guide strips (10) are mounted on both sides of the vertical arm of the L-shaped fixation plate (5).

6. The implantation tool for orthopaedic prosthesis fixation according to claim 5, wherein the guide ring (4) has guide grooves fitted with the guide strips (10) on its two side inner walls and a threaded through hole fitted with the threaded rod (3) on one side.

7. The implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein the distance between the second screws (20) is greater than the length of the connection plate (15).

8. The implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein the guiding mechanism (19) comprises a fixing sleeve (28) fixedly connected with the top end of the connecting plate (15), and a fixing rod (27) fixedly connected with the bottom end of the mounting plate (11) is sleeved inside the fixing sleeve (28), and an anti-drop plate (26) is fixedly mounted at one end of the fixing rod (27) extending into the fixing sleeve (28), and the diameter of the anti-drop plate (26) is larger than the inner diameter of the top end opening of the fixing sleeve (28).

9. The implantation tool for the fixation of orthopaedic prostheses according to claim 1, characterized in that said vertical arms of said L-shaped fixation plate (5) are equipped, on the side close to said auxiliary tool (9), with a plurality of groups of lighting lamps (6) uniformly.