CN213665453U

CN213665453U - Adjusting and expanding device for orthopedic minimally invasive surgery

Info

Publication number: CN213665453U
Application number: CN202021304179.7U
Authority: CN
Inventors: 吴志雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-07-13
Anticipated expiration: 2030-07-06

Abstract

The utility model relates to the technical field of medical equipment, and discloses an orthopedic minimally invasive surgery adjusting and expanding device, which comprises a circular guide rail, wherein the bottom of the circular guide rail is bolted with a bottom plate, the insides of the front surface and the back surface of the circular guide rail are respectively and slidably connected with two pulleys, the axle center of the opposite surfaces of the two pulleys is respectively and rotatably sleeved with a rotating rod, and the opposite ends of the two rotating rods are fixedly sleeved with a shell through bearings; the utility model discloses a set up circular guide rail, pulley, dwang, connecting rod, fixed pin, fixed block, first spring and circular recess, solved traditional expanding unit, the doctor expands the wound with expansion pincers, if need alternate incision position, then need the doctor along with notched position transform, the doctor of being not convenient for performs the operation, the problem of work load has been increased, this expanding unit is adjusted in minimal access surgery of orthopedics department possesses the advantage of being convenient for alternate expansion position, convenient operation improves work efficiency, is worth using widely.

Description

Adjusting and expanding device for orthopedic minimally invasive surgery

Technical Field

The utility model relates to the technical field of medical equipment, specifically to an orthopedic minimally invasive surgery adjusts extension fixture.

Background

The minimally invasive orthopedic surgery has the characteristics of small technical wound, accurate reduction, exact fixation and the like, overcomes the defects of large wound and long operation time of the traditional surgery, can ensure good reduction, simultaneously realize accurate fixation, furthest reduce iatrogenic injuries caused by repeated and excessive stripping, repeated puncture and rasping, and conveniently perform the surgery by using an expansion device for the incision during the surgery.

According to the traditional expansion device, a doctor expands a wound by using expansion forceps, if the position of an incision needs to be changed, the doctor needs to change the position of the incision, the operation is not convenient for the doctor, the workload is increased, and in order to solve the existing problems, the expansion device for the orthopedic minimally invasive operation is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expanding unit is adjusted in orthopedics minimal access surgery possesses the advantage of being convenient for alternate expansion position, has solved traditional expanding unit, and the doctor expands the wound with expansion pincers, if need alternate incision position, then need the doctor along with notched position transform, the doctor of being not convenient for operates, has increased the problem of work load.

In order to achieve the above object, the utility model provides a following technical scheme: an orthopedic minimally invasive surgery adjusting and expanding device comprises a circular guide rail, wherein a bottom plate is bolted at the bottom of the circular guide rail, two pulleys are slidably connected inside the front surface and the back surface of the circular guide rail, rotating rods are rotatably sleeved at the axle centers of the two pulleys opposite to each other, one ends of the two rotating rods opposite to each other are fixedly sleeved with a shell through bearings, a connecting rod is bolted between the tops of the two shells and is positioned at the top of the circular guide rail, a fixing pin is inserted at the top of the connecting rod, a fixing block is welded at the bottom of the fixing pin, a first spring is arranged between the fixing block and the connecting rod, a circular groove is formed in the surface of the circular guide rail and is matched with the fixing pin, an adjusting rod is fixedly sleeved at the bottom of the inner wall of the shell through a bearing, a first gear is, the surface of adjusting the pole is provided with stop gear, the both sides on first gear surface all mesh has the second gear, the axle center department of second gear rotates and has cup jointed first dead lever, the surperficial bolt of second gear has the second dead lever, the top welding of second dead lever has the dog, sliding connection has the slip ring between second gear and the dog, two the expansion rod has all been bolted to one side that the slip ring carried on the back mutually, the slide opening has all been seted up to the both sides of casing bottom, and the other end of expansion rod passes the slide opening and extends to the casing outside.

Preferably, stop gear is including solid fixed ring, gu fixed ring's bottom and the top bolt of casing, and gu fixed ring's center cup joints with the fixed surface of adjusting the pole, gu fixed ring's inner wall has seted up the spacing groove, the equal bolt in front and the back of adjusting the pole has spacing board, two the one end that the limiting plate was carried on the back mutually all is seted up flutedly, the inside sliding connection of recess has spacing head, and spacing head and spacing groove looks adaptation, be provided with the second spring between spacing head and the spacing groove.

Preferably, the surface of the expansion rod is sleeved with a deviation-resisting plate, and the bottom of the deviation-resisting plate is bolted with the bottom of the inner wall of the shell.

Preferably, the top of bottom plate is bolted with the cushion, the material of cushion is ventilative screen cloth material.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up circular guide rail, pulley, dwang, connecting rod, fixed pin, fixed block, first spring and circular recess, solved traditional expanding unit, the doctor expands the wound with expansion pincers, if need alternate incision position, then need the doctor along with notched position transform, the doctor of being not convenient for performs the operation, the problem of work load has been increased, this expanding unit is adjusted in minimal access surgery of orthopedics department possesses the advantage of being convenient for alternate expansion position, convenient operation improves work efficiency, is worth using widely.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

FIG. 2 is a sectional view of the top view of the present invention;

FIG. 3 is a side sectional view of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a circular guide rail; 2. a base plate; 3. a pulley; 4. rotating the rod; 5. a housing; 6. a connecting rod; 7. a fixing pin; 8. a fixed block; 9. a first spring; 10. a circular groove; 11. adjusting a rod; 12. a first gear; 13. a limiting mechanism; 14. a second gear; 15. a first fixing lever; 16. a stopper; 17. a slip ring; 18. an expansion rod; 19. a slide hole; 20. a deviation resistance plate; 21. a rotating sheet; 22. cushion blocks; 23. a second fixing bar; 131. a fixing ring; 132. a limiting groove; 133. a limiting plate; 134. a groove; 135. a limiting head; 136. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an orthopedic minimally invasive surgery adjusting and expanding device comprises a circular guide rail 1, a bottom plate 2 is bolted at the bottom of the circular guide rail 1, two pulleys 3 are slidably connected inside the front and back of the circular guide rail 1, rotating rods 4 are rotatably sleeved at the axes of the opposite sides of the two pulleys 3, a housing 5 is fixedly sleeved at the opposite ends of the two rotating rods 4 through bearings, a connecting rod 6 is bolted between the tops of the two housings 5, the connecting rod 6 is positioned at the top of the circular guide rail 1, a fixing pin 7 is inserted at the top of the connecting rod 6, a fixing block 8 is welded at the bottom of the fixing pin 7, a first spring 9 is arranged between the fixing block 8 and the connecting rod 6, a circular groove 10 is formed on the surface of the circular guide rail 1, the circular groove 10 is matched with the fixing pin 7, an adjusting rod 11 is fixedly, the surface of the adjusting rod 11 is fixedly sleeved with a first gear 12, the surface of the adjusting rod 11 is provided with a limiting mechanism 13, two sides of the surface of the first gear 12 are respectively meshed with a second gear 14, the axis of the second gear 14 is rotatably sleeved with a first fixing rod 15, the surface of the second gear 14 is bolted with a second fixing rod 23, the top of the second fixing rod 23 is welded with a stop 16, a sliding ring 17 is connected between the second gear 14 and the stop 16 in a sliding manner, one side of the two opposite sliding rings 17 is respectively bolted with an expansion rod 18, two sides of the bottom of the shell 5 are respectively provided with a sliding hole 19, the other end of the expansion rod 18 passes through the sliding hole 19 and extends to the outside of the shell 5, through the arrangement of the circular guide rail 1, the pulley 3, the rotating rod 4, the connecting rod 6, the fixing pin 7, the fixing block 8, the first spring 9 and the circular groove 10, the traditional expanding device, if need alternate incision position, then need the doctor along with the position transform of incision, be not convenient for the doctor to carry out the operation, increased the problem of work load, this expanding unit is adjusted in minimal access surgery of orthopedics possesses the advantage of being convenient for alternate expansion position, convenient operation improves work efficiency, is worth using widely.

Further, stop gear 13 is including solid fixed ring 131, the bottom of solid fixed ring 131 and the top bolt of casing 5, and the center of solid fixed ring 131 cup joints with the fixed surface of adjusting pole 11, spacing groove 132 has been seted up to solid fixed ring 131's inner wall, adjust the front and the back of pole 11 and all bolt limiting plate 133, recess 134 has all been seted up to two limiting plate 133 one end that carry on the back mutually, the inside sliding connection of recess 134 has spacing head 135, and spacing head 135 and spacing groove 132 looks adaptation, be provided with second spring 136 between spacing head 135 and the spacing groove 132, through setting up stop gear 13, can make and adjust pole 11 not reverse, thereby fix expansion rod 18 better, be convenient for perform the operation.

Furthermore, the surface of the expansion rod 18 is sleeved with a deviation-resisting plate 20, the bottom of the deviation-resisting plate 20 is bolted with the bottom of the inner wall of the shell 5, and the deviation-resisting plate 20 and the limiting expansion rod 18 are arranged, so that the expansion rod 18 does not deviate during working, and the device is more stable.

Furthermore, the top of the adjusting rod 11 is bolted with a rotating sheet 21, and the rotating sheet 21 is arranged, so that the medical staff can rotate the adjusting rod 11 more conveniently and more labor is saved.

Further, the top bolt of bottom plate 2 has cushion 22, and cushion 22's material is ventilative screen cloth material, through setting up cushion 22, more is favorable to placing patient's operation position, and is more comfortable when making the patient perform the operation.

When the device is used, the fixing pin 7 is lifted upwards, the fixing pin 7 is separated from the circular groove 10, the shell 5 is moved to a required position, the fixing pin 7 is released, the fixing pin 7 returns to the initial position under the action of the first spring 9 and enters the circular groove 10 to achieve the effect of fixing the shell 5, and therefore the effect of fixing the expansion position is achieved;

the rotating sheet 21 is rotated, the rotating sheet 21 drives the adjusting rod 11 to rotate, the adjusting rod 11 drives the first gear 12 to rotate, the first gear 12 drives the second gear 14 to rotate, the second gear 14 drives the second fixing rod 23 to rotate, the second fixing rod 23 drives the sliding rings 17 to move left and right, so that the two sliding rings 17 move towards opposite directions at the same time, and the sliding rings 17 drive the expansion rods 18 to move towards opposite directions at the same time, so that the purpose of expansion is achieved;

when the expansion size is adjusted, the adjusting rod 11 drives the limiting plate 133 to rotate, and the limiting head 135 can be repeatedly clamped with the limiting groove 132 under the action of the second spring 136 and the limiting groove 132 when the limiting plate 133 rotates, so that the effect of fixing the adjusting rod 11 at any time is achieved, and the effect of fixing the expansion rod 18 is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an expanding unit is adjusted in orthopedics minimal access surgery, includes circular guide rail (1), its characterized in that: the bottom of the circular guide rail (1) is bolted with a bottom plate (2), the front and back interiors of the circular guide rail (1) are respectively connected with two pulleys (3) in a sliding manner, the axle centers of the two opposite sides of the pulleys (3) are respectively and rotatably sleeved with a rotating rod (4), the opposite ends of the two rotating rods (4) are respectively and fixedly sleeved with a shell (5) through a bearing, a connecting rod (6) is bolted between the tops of the two shells (5), the connecting rod (6) is positioned at the top of the circular guide rail (1), a fixing pin (7) is spliced at the top of the connecting rod (6), a fixing block (8) is welded at the bottom of the fixing pin (7), a first spring (9) is arranged between the fixing block (8) and the connecting rod (6), a circular groove (10) is formed in the surface of the circular guide rail (1), and the circular groove (10) is matched, the bottom of the inner wall of the shell (5) is fixedly sleeved with an adjusting rod (11) through a bearing, a first gear (12) is fixedly sleeved on the surface of the adjusting rod (11), a limiting mechanism (13) is arranged on the surface of the adjusting rod (11), two sides of the surface of the first gear (12) are respectively engaged with a second gear (14), the axle center of the second gear (14) is rotatably sleeved with a first fixed rod (15), a second fixing rod (23) is bolted at the top of the second gear (14), a stop block (16) is welded at the top of the second fixing rod (23), sliding rings (17) are connected between the second gear (14) and the stop block (16) in a sliding manner, expansion rods (18) are bolted on the opposite sides of the two sliding rings (17), sliding holes (19) are formed in the two sides of the bottom of the shell (5), and the other end of the expansion rod (18) passes through the sliding hole (19) and extends to the outside of the shell (5).

2. The minimally invasive surgical adjustment and dilation device according to claim 1, wherein: stop gear (13) are including solid fixed ring (131), the bottom of solid fixed ring (131) and the top bolt of casing (5), and the center of solid fixed ring (131) and the fixed surface of adjusting pole (11) cup joint, spacing groove (132) have been seted up to the inner wall of solid fixed ring (131), adjust the front and the back of pole (11) and all bolt spacing board (133), two spacing board (133) one end back on the back of the body all is seted up fluted (134), the inside sliding connection of recess (134) has spacing head (135), and spacing head (135) and spacing groove (132) looks adaptation, be provided with second spring (136) between spacing head (135) and spacing groove (132).

3. The minimally invasive surgical adjustment and dilation device according to claim 1, wherein: the surface of the expansion rod (18) is sleeved with a deviation-resisting plate (20), and the bottom of the deviation-resisting plate (20) is bolted with the bottom of the inner wall of the shell (5).

4. The minimally invasive surgical adjustment and dilation device according to claim 1, wherein: the top of the adjusting rod (11) is bolted with a rotating sheet (21).

5. The minimally invasive surgical adjustment and dilation device according to claim 1, wherein: the top of bottom plate (2) is bolted with cushion (22), the material of cushion (22) is ventilative screen cloth material.