CN211633417U

CN211633417U - Lumbar vertebra posterior approach strutting device

Info

Publication number: CN211633417U
Application number: CN202020108338.XU
Authority: CN
Inventors: 刘佐忠
Original assignee: Yongchuan Hospital of Chongqing Medical University
Current assignee: Yongchuan Hospital of Chongqing Medical University
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-09
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to the technical field of medical equipment, in particular to a lumbar vertebra posterior distraction device, which comprises a strut, a distraction arm and a distraction piece, wherein the distraction arm comprises a first distraction arm and a second distraction arm, the distraction arm comprises a rotating piece, an articulated piece and a supporting piece, one end of the articulated piece is articulated with the supporting piece, the other end of the articulated piece is articulated with the rotating piece, the supporting piece is provided with a second connecting rod, the second connecting rod is provided with a first distraction piece, the first distraction piece is provided with a second distraction piece, the second distraction piece is provided with a first clamping strip, the first clamping strip is provided with a clamping piece, the clamping piece is provided with a third connecting rod and a fourth connecting rod, the fourth connecting rod is provided with a hoop, the second distraction piece is provided with a lifting rod, the lifting rod is arranged between the hoops in a penetrating way, and is used for solving the problem that the prior distraction device only clamps muscles at the head end and the tail end to cause, the problem that the muscle injury is easily caused by pulling the soft tissue muscle by the draw hook.

Description

Lumbar vertebra posterior approach strutting device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a lumbar vertebrae way of escape distraction device.

Background

The traditional treatment of lumbar disc herniation, including anterior surgery and posterior surgery, lumbar spondylosis caused by the compression of the front of the lumbar spinal cord usually adopts the posterior surgery of lumbar vertebra, and a lumbar vertebra spreader and a hook are required to be prepared in the posterior surgery process; wherein, the lumbar vertebra spreader comprises a lumbar vertebra fixing nail, a connecting column, two spreading claws and an adjusting knob, wherein the two spreading claws are connected to the connecting column in a sliding way; in the operation process, the two lumbar vertebra fixing nails are screwed into the vertebral body, the tails of the lumbar vertebra fixing nails are exposed outside, the two supporting claws of the lumbar intervertebral distractor are connected with the tails of the lumbar vertebra fixing nails, and the intervertebral space can be distracted as required by the adjusting knob, but the lumbar intervertebral distractor only has the function of distracting the intervertebral space towards the head and the tail side and cannot give consideration to the function of blocking soft tissues towards the side; at this time, the assistant needs to use the retractor to pull the soft tissue muscles on the side to complete the whole operation process.

When the retractor is used for pulling soft tissues leftwards and rightwards, more medical personnel are required to participate, the tension of the manual retractor is uneven, the retractor and the tissue form an acute angle, the retractor slides to easily cause damage to surrounding tissues, the manual operation is easy to fatigue, the retractor slides to cause repeated retractor, the risk of tissue damage is increased, serious postoperative complications are caused, and the operation effect is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a lumbar vertebrae way of escape distraction device for solve current distraction device and only block the muscle at head and the tail both ends, lead to the soft tissue muscle extrusion of both sides face, stimulate the problem that the soft tissue muscle caused muscle damage easily with the drag hook.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

a lumbar vertebrae way of escape struts device, includes the vaulting pole, installs the arm and the piece of strutting on the vaulting pole, the arm of strutting includes first arm and the second arm of strutting, first arm of strutting includes rotating member, articulated elements and support piece, it includes sleeve and head rod to rotate the piece, the head rod is installed on the sleeve, the head rod is articulated with articulated one end, the other end of articulated elements is articulated with one end of support piece, the last first through-hole that has seted up of support piece, the first logical groove has been seted up on the inner wall of first through-hole, first arm and the second arm of strutting structure is the same, first arm of strutting is installed on the top of vaulting pole, the vaulting pole has seted up the breach on the vaulting pole, the vaulting pole has the rack at breach position integrated into one piece, the vaulting pole is equipped with the screw thread on one side of breach, be equipped with the screw thread in the sleeve of first arm of strutting, and is in threaded connection with the stay bar, the sleeve of the second opening arm is sleeved on the stay bar in a sliding way, the first through holes are internally and rotatably provided with second connecting rods, a cross bar is fixedly arranged on the second connecting rod, a first opening sheet is fixedly arranged on the second connecting rod, a second opening sheet is fixedly arranged on the first opening sheet, a first clamping strip is fixedly arranged on the second opening sheet, a card is arranged on the first card strip in a sliding way, a third connecting rod is fixedly arranged on the card, the third connecting rod is connected with a fourth connecting rod, the fourth connecting rod is fixedly provided with a hoop, the hoop is provided with a first threaded hole, a bolt is arranged in the first threaded hole in a penetrating way, the second opening sheet is provided with a second threaded hole, the lifting rod is installed in the second threaded hole in a threaded mode and penetrates through the hoop.

Further, fixed mounting has the connection piece on the arm is propped open to the second, the second through-hole has been seted up on the connection piece, the vaulting pole has the control block in breach position slidable mounting, the second has been seted up on the control block and has been led to the groove, the third through-hole has been seted up on the control block, third through-hole and second through-groove intercommunication, rotate in the third through-hole and install first dwang, the one end fixed mounting of first dwang has the fluted disc, fluted disc and rack toothing, the other end fixed mounting of fluted disc has the second dwang, the cover is equipped with the transfer line on the second dwang, the terminal integrated into one piece of transfer line has the auxiliary transmission pole, the auxiliary transmission pole is worn to establish in the second through-hole, sets up like this and drives the second through the control block and prop open the.

Further, the rubber pad is fixedly arranged on the inner wall of the hoop, and the phenomenon that the hoop damages threads on the lifting rod after long-term use is avoided.

Furthermore, the lifting rod is integrally formed with a first handle, so that the first handle is directly rotated, and the lifting rod is more convenient to use.

Furthermore, the one end fixed mounting of first transfer line has the second handle, sets up like this, and the direct rotatory second handle makes the transfer line rotate, drives the fluted disc and rotates on the rack, and is more convenient.

Further, the second props up fixed mounting on the piece and is blocked the strip with the second, first card strip and second card strip are the right angle, set up like this, have increased the second and have propped up the range of opening of piece.

The utility model discloses a lumbar vertebrae way of escape distraction device, through first card strip and second card strip of equal fixed mounting on first distraction piece and second distraction piece, first card strip and second card strip are the right angle, when the card is slidably mounted on first card strip, through the cooperation of third connecting rod, fourth connecting rod and the arc piece on the card, make the card and the position of lifter fixed, thereby make the card block the muscle that the side extruded; when the card slidable mounting was on the second card strip, through the third connecting rod on the card, the cooperation of fourth connecting rod and arc piece, made the card fixed with the position of lifter, thereby increased the range of strutting of first strutting piece and second strutting piece, the muscle that makes the side can not influence the field of vision at operation position, avoided current strutting arrangement to block the muscle at head and the tail both ends only, lead to the muscle extrusion at all the other positions, with the problem that the muscle damage is caused easily to drag hook pulling soft tissue muscle.

Drawings

Fig. 1 is a schematic structural view of a posterior lumbar distraction device of the present invention;

fig. 2 is an exploded view of the posterior lumbar distraction device of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 is an exploded view of the distraction arm of the posterior lumbar distraction device of the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

fig. 6 is a schematic view of the mounting structure of the clamping piece and the hoop of the lumbar vertebrae posterior distraction device of the present invention;

the support rod 1, the rack 101, the control block 2, the second through-groove 201, the third through-hole 202, the gear 203, the first rotating rod 204, the second handle 205, the second rotating rod 206, the driving rod 207, the driving sub-rod 208, the spreading arm 3, the sleeve 301, the first connecting rod 302, the hinge 303, the support 304, the first through-hole 305, the first through-groove 306, the connecting piece 307, the second through-hole 308, the second connecting rod 4, the cross rod 401, the lifting rod 5, the first handle 501, the first spreading piece 601, the second spreading piece 602, the first clamping strip 603, the second clamping strip 604, the second threaded hole 605, the clamping piece 7, the third connecting rod 701, the blind hole 702, the fourth connecting rod 8, the hoop 801, the rubber pad 802, the first threaded hole 803, and the bolt 9.

Detailed Description

The invention will be described in detail with reference to the following drawings and specific embodiments:

as shown in fig. 1-6, the utility model discloses a lumbar vertebrae way of escape struts device, including vaulting pole 1, install the arm 3 and the piece of strutting on vaulting pole 1, strut arm 3 and include first arm and the second arm of strutting, first arm screw thread of strutting is installed on the top of vaulting pole 1 for the position of first arm of strutting can finely tune. The supporting rod 1 is provided with a notch, the supporting rod 1 is integrally formed with a rack 101 at the notch, the second opening arm is slidably mounted on the rack 101, and the supporting rod 1 is provided with a control block 2 for controlling the moving distance of the second opening arm on the supporting rod 1.

The first spreading arm and the second spreading arm have the same structure, the first spreading arm comprises a rotating part, a hinge part 303 and a supporting part 304, the rotating part comprises a sleeve 301 and a first connecting rod 302, the sleeve 301 is installed at the top end of the supporting rod 1 in a threaded manner, the first connecting rod 302 is fixedly installed on the sleeve 301, the first connecting rod 302 is hinged to one end of the hinge part 303, and the other end of the hinge part 303 is hinged to one end of the supporting part 304. The use of the supporting arm 3 is more flexible and convenient by the hinge connection between the rotating part, the hinge joint 303 and the supporting part 304. The supporting member 304 is provided with a first through hole 305, the inner wall of the first through hole 305 is provided with a first through groove 306, the first through hole 305 is rotatably provided with the second connecting rod 4, the second connecting rod 4 is fixedly provided with a cross rod 401, and the width dimension of the cross rod 401 is the same as that of the first through groove 306. The second connecting rod 4 is fixedly provided with a first opening sheet 601, the first opening sheet 601 is fixedly provided with a second opening sheet 602, and the first opening sheet 601 and the second opening sheet 602 are at right angles. The second spreading sheet 602 is fixedly provided with a first clamping strip 603 and a second clamping strip 604, and the first clamping strip 603 and the second clamping strip 604 form a right angle. Slidable mounting has card 7 on first card strip 603, card 7 is the right angle with second distraction piece 602, fixed mounting has third connecting rod 701 on the card 7, blind hole 702 has been seted up on the third connecting rod 701, wear to be equipped with fourth connecting rod 8 in the blind hole 702, the terminal fixed mounting of fourth connecting rod 8 has staple bolt 801, staple bolt 801 inner wall is fixed and is provided with rubber pad 802, first screw hole 803 has been seted up on the staple bolt 801, wear to be equipped with bolt 9 in the first screw hole 803, it is tight to make staple bolt 801 press from both sides through bolt 9. The second spreading piece 602 is provided with a second threaded hole 605, the second threaded hole 605 is internally threaded with a lifting rod 5, and the lifting rod 5 is integrally formed with a first handle 501. The lifter 5 is worn to establish between the staple bolt 801, when the position of card 7 was adjusted to needs, the position of card 7 had been adjusted earlier, and the staple bolt 801 is adjusted to rethread bolt 9, makes staple bolt 801 press from both sides tight lifter 5, through the cooperation of third connecting rod 701 and fourth connecting rod 8 to make the rigidity of card 7, block the soft tissue muscle of side. When the wound is cut to be larger, the width of the second opening sheet 602 is not enough, the card 7 is clamped into the second clamping strip 604, and then the card 7 is arranged on the second opening sheet 602 in a 180-degree manner through the matching of the lifting rod 5, the hoop 801, the third connecting rod 701 and the fourth connecting rod 8, so that the opening distance of the second opening sheet 602 is increased, and the part needing operation is fully exposed.

The second spreading arm is fixedly provided with a connecting sheet 307, and the connecting sheet 307 is provided with a second through hole 308. A control block 2 is slidably mounted on the support rod 1, a second through groove 201 is formed in the control block 2, a third through hole 202 is formed in the control block 2, and the third through hole 202 is communicated with the second through groove 201. A first rotating rod 204 is rotatably mounted in the third through hole 202, a second handle 205 is fixedly mounted at one end of the first rotating rod 204, a fluted disc 203 is fixedly mounted at the other end of the first rotating rod 204, the fluted disc 203 is meshed with the rack 101, a second rotating rod 206 is fixedly mounted at the other end of the fluted disc 203, a transmission rod 207 is sleeved on the second rotating rod 206, a transmission auxiliary rod 208 is integrally formed at the tail end of the transmission rod 207, and the transmission auxiliary rod 208 is clamped in the second through hole 308. The second handle 205 on the first rotating rod 204 is rotated to drive the fluted disc 203 to rotate on the rack 101, so that the control block 2 moves along the direction of the rack 101, the driving rod 207 is driven to move, the second opening arm moves along the direction of the rack 101, the first opening arm and the second opening arm are separated, the second opening piece 602 on the first opening arm clamps one end of the wound, the second opening piece 602 on the second opening arm clamps the other end of the wound, and the part for operation is fully exposed.

The utility model discloses a use method as follows: when the wound dilator is used, the first distraction arm is arranged at the top end of the distraction rod 1, the second distraction arm is arranged at the notch of the distraction rod 1, the first distraction arm and the second distraction arm have the same structure and are formed by hinging the rotating piece, the hinging piece 303 and the supporting piece 304, so that when the wound dilator is used, medical personnel can adjust the distance between the first distraction arm and the second distraction arm outside an operation area, the distraction arm is hinged to enable the placement of the distraction rod 1 to be more convenient and flexible, meanwhile, as the first distraction piece 601 and the second distraction piece 602 on the first distraction arm and the first distraction piece 601 and the second distraction piece 602 on the second distraction arm are clamped in the incised muscle, the axial movement of the rotating piece, the hinging piece 303 and the supporting piece 304 caused by the hinging of the distraction arm is avoided, the first distraction piece 601 and the second distraction piece 602 are respectively arranged on the first distraction arm and the second distraction arm, and the head ends of the first distraction piece 601 and the second distraction piece 602 on the first distraction arm and the second distraction arm are positioned at the wound, the first opening sheet 601 and the second opening sheet 602 on the second opening arm are positioned at the tail end of the wound, so that the part needing operation is exposed; when the wound is large, soft tissue muscles on two sides can be squeezed towards the middle, the clamping piece 7 is slidably mounted on the first clamping strip 603, meanwhile, the lifting rod 5 is rotatably mounted in the second threaded hole 605, the fourth connecting rod 8 is inserted into the first blind hole, and the hoop 801 on the fourth connecting rod 8 clamps the lifting rod 5, so that the clamping piece 7 is fixed, the soft tissue muscles squeezed from the side are blocked, and the soft tissue muscles on the side are prevented from blocking the place needing operation; after the operation is completed, take out the first opening piece 601 and the second opening piece 602 on the first opening arm and the first opening piece 601 and the second opening piece 602 on the second opening arm from the wound, loosen the bolt 9 again, take down the hoop 801 on the fourth connecting rod 8 from the lifting rod 5, take down the card 7 again, rotate the second connecting rod 4, make the horizontal rod 401 aim at the first through groove 306, take down the first opening piece 601 and the second opening piece 602, adjust the control block 2 to the first opening arm direction again, it can to wash each part.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. The utility model provides a lumbar vertebrae way of escape struts device, includes vaulting pole (1), installs the arm of strutting (3) and the piece of strutting on vaulting pole (1), its characterized in that: the opening arm (3) comprises a first opening arm and a second opening arm, the first opening arm comprises a rotating piece, a hinged piece (303) and a supporting piece (304), the rotating piece comprises a sleeve (301) and a first connecting rod (302), the first connecting rod (302) is installed on the sleeve (301), the first connecting rod (302) is hinged to one end of the hinged piece (303), the other end of the hinged piece (303) is hinged to one end of the supporting piece (304), a first through hole (305) is formed in the supporting piece (304), a first through groove (306) is formed in the inner wall of the first through hole (305), the first opening arm and the second opening arm are identical in structure, the first opening arm is installed on the top end of the opening rod (1), a notch is formed in the opening rod (1), and a rack (101) is integrally formed in the notch position of the opening rod (1), the support rod (1) is provided with threads on one side of the notch, threads are arranged in a sleeve (301) of the first spreading arm, the threads are connected onto the support rod (1), the sleeve (301) of the second spreading arm is sleeved on the support rod (1) in a sliding manner, a second connecting rod (4) is installed in the first through hole (305) in a rotating manner, a cross rod (401) is fixedly installed on the second connecting rod (4), a first spreading piece (601) is fixedly installed on the second connecting rod (4), a second spreading piece (602) is fixedly installed on the first spreading piece (601), a first clamping strip (603) is fixedly installed on the second spreading piece (602), a clamping strip (7) is slidably installed on the first clamping strip (603), a third connecting rod (701) is fixedly installed on the clamping strip (7), and a fourth connecting rod (8) is connected onto the third connecting rod (701), the fourth connecting rod (8) is fixedly provided with a hoop (801), the hoop (801) is provided with a first threaded hole, the first threaded hole is internally provided with a bolt (9), the second spreading piece (602) is provided with a second threaded hole (605), the second threaded hole (605) is internally provided with a lifting rod (5), and the lifting rod (5) is arranged between the hoops (801) in a penetrating manner.

2. The lumbar posterior distraction device of claim 1 further comprising: the utility model discloses a hydraulic drive device, including a first strutting arm, a second strutting arm, a control block (202), a fluted disc (203), a first rotating rod (206), a transmission rod (207), a transmission auxiliary rod (208), a second through hole (308), a control block (2), a second through hole (202), a control block (1), a control block (2), a second through hole (201), a first rotating rod (204), a fluted disc (203), a rack (101), a second rotating rod (206), a transmission rod (207), a transmission auxiliary rod (208), a transmission auxiliary rod (207), a transmission rod (207), and a gear, the transmission auxiliary rod (208) is clamped in the second through hole (308).

3. The lumbar posterior distraction device of claim 2 further comprising: rubber pads (802) are fixedly arranged on the inner walls of the hoops (801).

4. The lumbar posterior distraction device of claim 3 further comprising: a first handle (501) is integrally formed on the lifting rod (5).

5. The lumbar posterior distraction device of claim 4 further comprising: one end of the first rotating rod (204) is fixedly provided with a second handle (205).

6. The lumbar posterior distraction device of claim 5 further comprising: and a second clamping strip (604) is fixedly mounted on the second stretching piece (602), and the first clamping strip (603) and the second clamping strip (604) are right-angled.