CN213047074U

CN213047074U - Surgical retractor for orthopedics department

Info

Publication number: CN213047074U
Application number: CN202021189232.3U
Authority: CN
Inventors: 许海燕
Original assignee: Luoyang Orthopedic Traumatological Hospital of Henan Orthopedic Hospital
Current assignee: Luoyang Orthopedic Traumatological Hospital of Henan Orthopedic Hospital
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-04-27
Anticipated expiration: 2030-06-23

Abstract

The utility model belongs to the technical field of medical equipment, in particular to an orthopedic surgery retractor, which comprises a supporting plate, wherein the upper surface of the supporting plate is fixedly connected with a fixing mechanism, the supporting plate is also connected with a box body, the box body is connected with the supporting plate in a lifting way, the box body is connected with a pulling-open mechanism in a sliding way, and an adjusting mechanism matched with the pulling-open mechanism is arranged in the box body; the bottom surface of the supporting plate is fixedly connected with a supporting frame, and a lifting mechanism is arranged on the supporting frame and matched with the box body; the pull-up mechanism comprises a sliding plate which is in sliding connection with the box body, a limiting groove is arranged on the sliding plate, and a transverse groove matched with the limiting groove is arranged on the box body; be equipped with a plurality of screw holes on the sliding plate, screw hole female connection has the second threaded rod, and the one end fixedly connected with adjust knob of second threaded rod, the other end of second threaded rod rotate and are connected with the drag hook, and the effectual reliability that has solved among the prior art for the orthopedics operation drag hook existence is low, the fixed effect is poor and increase the problem of medical personnel burden.

Description

Surgical retractor for orthopedics department

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to orthopedic surgical retractor.

Background

The orthopedic operation retractor is an auxiliary device for pulling apart and fixing tissues outside a bone in an orthopedic operation, and is widely used in the orthopedic operation process; the existing orthopedic operation draw hook comprises a draw rod and a draw hook, wherein the draw hook is fixedly arranged at one end of the draw rod; when the existing orthopedic surgery retractor is used, tissues to be pulled open are hooked by the retractor, and then medical staff assist manually pulls the pull rod to pull open and fix the tissues; the existing orthopedic operation retractor is used for discovering that when one operation is performed, a plurality of assistants are often needed to pull the pull rod, a large amount of manpower is consumed, and when the operation time is long, people need to be changed midway to fix the pull rod, so that the use reliability is low; moreover, the tissue is fixed manually, so that a person cannot keep a highly concentrated state for a long time, the force cannot be balanced, the fixing effect on the tissue cannot be ensured, and the practicability is low; in summary, the orthopedic surgical retractor in the prior art has the problems of low reliability, poor fixing effect and increased burden on medical care personnel, and thus, an orthopedic surgical retractor is urgently needed.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an orthopedic surgery retractor, the effectual reliability that exists of orthopedic surgery retractor among the prior art of having solved is low, fixed effect is poor and increase the problem of medical personnel burden.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the orthopedic surgical retractor comprises a supporting plate, wherein the upper surface of the supporting plate is fixedly connected with a fixing mechanism, the supporting plate is also connected with a box body, the box body is connected with the supporting plate in a lifting manner, the box body is connected with a pulling-open mechanism in a sliding manner, and an adjusting mechanism matched with the pulling-open mechanism is arranged in the box body; the bottom surface of the supporting plate is fixedly connected with a supporting frame, and a lifting mechanism is arranged on the supporting frame and matched with the box body; the pull-up mechanism comprises a sliding plate which is in sliding connection with the box body, a limiting groove is arranged on the sliding plate, and a transverse groove matched with the limiting groove is arranged on the box body; the sliding plate is provided with a plurality of threaded holes, the threaded holes are connected with a second threaded rod in a threaded manner, one end of the second threaded rod is fixedly connected with an adjusting knob, and the other end of the second threaded rod is rotatably connected with a drag hook.

Furthermore, the lifting mechanism comprises a second rotating rod which is rotatably connected with the support frame, a support rod is rotatably connected at the middle position of the second rotating rod, and a first rotating rod is rotatably connected on the support rod; a second connecting rod and a fourth connecting rod are respectively and fixedly connected to two ends of the first rotating rod, and a first connecting rod and a third connecting rod are respectively and fixedly connected to two ends of the second rotating rod; the supporting frame is also provided with a left sliding groove, a right sliding groove and a lifting sliding groove, the left sliding groove, the right sliding groove and the lifting sliding groove are respectively matched with a second connecting rod and a fourth connecting rod, the first connecting rod is rotatably connected with the supporting frame, and the second connecting rod is slidably and rotatably connected with the supporting frame;

furthermore, the support frame is also provided with a lifting groove, a lifting frame is connected in the lifting groove in a sliding manner, a first threaded rod is rotatably connected to the lifting frame and is in threaded connection with the support rod, and a hand-operated turntable is fixedly connected to one end, far away from the lifting frame, of the first threaded rod; the box body is provided with a vertical groove, and the supporting plate is fixedly connected with a limiting clamping block matched with the vertical groove.

Furthermore, the adjusting mechanism comprises a supporting seat fixedly connected with the box body, a rocker is rotatably connected to the supporting seat, one end of the rocker is fixedly connected with a handle, the other end of the rocker is rotatably connected with a connecting rod, the other end of the connecting rod is rotatably connected with a crank rod, and the crank rod is rotatably connected with the box body; the crank rod is fixedly connected with a ratchet-pawl mechanism, a disc and a driving gear, the driving gear is meshed with a driven gear, the driven gear is coaxially and fixedly connected with an adjusting gear, the adjusting gear is meshed with a rack, and the rack is fixedly connected with a sliding plate; the driving gear is connected with a second reset torsion spring, one end of the second reset torsion spring is fixedly connected with the driving gear, and the other end of the second reset torsion spring is fixedly connected with the box body.

Furthermore, the ratchet wheel and pawl mechanism comprises a ratchet wheel fixedly connected with the crank rod, a pawl matched with the ratchet wheel is rotatably connected to the box body, and the pawl is connected with a first reset torsion spring; one end of the first reset torsion spring is fixedly connected with the pawl, and the other end of the first reset torsion spring is fixedly connected with the box body.

Further, the fixing mechanism comprises a fixing plate fixedly connected with the upper surface of the supporting plate, and a fixing bolt is connected to the fixing plate in a threaded manner.

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

the utility model has novel structure, ingenious conception and convenient operation, and ensures that the device is fixed on the sickbed when in use through the arrangement of the fixing mechanism, thereby improving the reliability and stability of the device; through the arrangement of the lifting mechanism, the height of the box body can be adjusted when the utility model is used, and the height adjustment of the pull-open mechanism can be realized; through the arrangement of the adjusting mechanism, the position of the sliding plate is adjusted when the utility model is used, and the whole position of the pull-open mechanism is adjusted; through the cooperation setting of second threaded rod and sliding plate, guarantee the utility model discloses adjust alone the drag hook when using, realize the control to different positions pull open the degree.

Drawings

FIG. 1 is an isometric view of the overall structure of the present invention;

fig. 2 is a first axis mapping of the lifting mechanism of the present invention;

fig. 3 is a second axial view of the lifting mechanism of the present invention;

fig. 4 is an axonometric view of the adjusting mechanism of the present invention;

FIG. 5 is an enlarged view of the adjustment mechanism of the present invention;

fig. 6 is an isometric view of the pull-open mechanism of the present invention;

in the figure: 1. a support frame; 2. a lifting frame; 3. a lifting groove; 4. a support plate; 5. a fixing mechanism; 6. a pull-open mechanism; 7. a box body; 8. a first rotating lever; 9. a hand-operated turntable; 10. a second rotating lever; 11. a second connecting rod; 12. a third connecting rod; 13. a support bar; 14. a limiting clamping block; 15. a lifting chute; 16. a fourth connecting rod; 17. a first threaded rod; 18. a first connecting rod; 19. a left and a right sliding groove; 22. a transverse groove; 23. a vertical slot; 24. a supporting seat; 25. a rocker; 26. a connecting rod; A. a transmission mechanism; 27. a sliding plate; 28. a pawl; 29. a first return torsion spring; 30. a crank lever; 31. a driving gear; 32. a driven gear; 33. an adjusting gear; 34. shifting the disc; 35. a ratchet wheel; 36. pulling a hook; 37. a rack; 38. a limiting groove; 39. a second threaded rod; 40. and adjusting a knob.

Detailed Description

As shown in fig. 1 and 6, an orthopedic surgery retractor 36 comprises a support plate 4, wherein a fixing mechanism 5 is fixedly connected to the upper surface of the support plate 4, a box body 7 is further connected to the support plate 4, the box body 7 is connected with the support plate 4 in a lifting manner, a pulling-open mechanism 6 is connected to the box body 7 in a sliding manner, and an adjusting mechanism a matched with the pulling-open mechanism 6 is arranged in the box body 7; the bottom surface of the supporting plate 4 is fixedly connected with a supporting frame 1, and a lifting mechanism is arranged on the supporting frame 1 and matched with the box body 7; the pulling-open mechanism 6 comprises a sliding plate 27 connected with the box body 7 in a sliding manner, a limiting groove 38 is arranged on the sliding plate 27, and a transverse groove 22 matched with the limiting groove 38 is arranged on the box body 7; the sliding plate 27 is provided with a plurality of threaded holes, the threaded holes are connected with a second threaded rod 39 in a threaded manner, one end of the second threaded rod 39 is fixedly connected with an adjusting knob 40, and the other end of the second threaded rod 39 is rotatably connected with a drag hook 36.

When the utility model is used, medical staff firstly use the fixing mechanism 5 to fix the device on the bed board, then use the lifting mechanism to adjust the height of the box body 7 according to the condition of a patient, and the box body 7 drives the pulling-open mechanism 6 to lift; then, the medical staff uses the adjusting mechanism A to adjust the position of the pull-open mechanism 6 according to the condition of the patient; finally, the opening mechanism 6 is adjusted, the adjusting knob 40 is controlled to rotate according to the condition of the patient, the adjusting knob 40 drives the second threaded rod 39 to be matched with the sliding plate 27 to drive the draw hook 36 to move, the opening degree of the draw hook 36 is controlled, and different adjusting knobs 40 are adjusted to control the opening degrees of different positions; through the arrangement of the fixing mechanism 5, the device is ensured to be fixed on a sickbed when in use, and the reliability and the stability of the device are improved; by sliding of the second threaded rod 39

The cooperation setting of board guarantees the utility model discloses adjust alone drag hook 36 when using, realize the control to different positions pull open the degree.

As shown in fig. 2 and 3, the lifting mechanism includes a second rotating rod 10 rotatably connected to the support frame 1, a support rod 13 is rotatably connected to the middle of the second rotating rod 10, and a first rotating rod 8 is rotatably connected to the support rod 13; two ends of the first rotating rod 8 are respectively and fixedly connected with a second connecting rod 11 and a fourth connecting rod 16, and two ends of the second rotating rod 10 are respectively and fixedly connected with a first connecting rod 18 and a third connecting rod 12; the supporting frame 1 is further provided with a left sliding chute 19, a right sliding chute 15 and a lifting sliding chute 15, the left sliding chute 19, the right sliding chute 15 and the lifting sliding chute 15 are respectively matched with a second connecting rod 11 and a fourth connecting rod 16, the first connecting rod 18 is rotatably connected with the supporting frame 1, and the second connecting rod 11 is slidably and rotatably connected with the supporting frame 1; the lifting frame 1 is also provided with a lifting groove 3, a lifting frame 2 is connected in the lifting groove 3 in a sliding manner, a first threaded rod 17 is rotatably connected to the lifting frame 2, the first threaded rod 17 is in threaded connection with a support rod 13, and one end, far away from the lifting frame 2, of the first threaded rod 17 is fixedly connected with a hand-operated rotary table 9; the box body 7 is provided with a vertical groove 23, and the supporting plate 4 is fixedly connected with a limiting clamping block 14 matched with the vertical groove 23.

When the utility model is used, medical staff uses the hand-operated rotary disc 9 to control the first threaded rod 17 to rotate around the lifting frame 2, the first threaded rod 17 is matched with the support rod 13 to control the support rod 13 to slide along the threaded rod, the support rod 13 drives the first rotating rod 8 and the second rotating rod 10 to rotate relatively, the first rotating rod 8 drives the first connecting rod 18 to rotate around the support frame 1, meanwhile, the second connecting rod 11 and the fourth connecting rod 16 on the second rotating rod 10 slide and rotate, the second connecting rod 11 slides and rotates along the left and right chutes 19, and the fourth connecting rod 16 slides and rotates along the lifting chute 15; the third connecting rod 12 on the first rotating rod 8 drives the box body 7 to lift, and the vertical groove 23 on the box body 7 is matched with the limiting clamping block 14 on the supporting plate 4 to ensure that the box body 7 lifts; in addition, the support rod 13 is lifted along with the first rotating rod 8 and the second rotating rod 10, and the support rod 13 drives the lifting rack 2 to lift in the lifting groove 3 through a threaded rod; through elevating system's setting, guarantee the utility model discloses adjust the height of box body 7 when using, realize the altitude mixture control to the mechanism of opening 6.

As shown in fig. 4 and 5, the adjusting mechanism a includes a supporting seat 24 fixedly connected to the box body 7, a rocker 25 is rotatably connected to the supporting seat 24, a handle is fixedly connected to one end of the rocker 25, a connecting rod 26 is rotatably connected to the other end of the rocker 25, a crank rod 30 is rotatably connected to the other end of the connecting rod 26, and the crank rod 30 is rotatably connected to the box body 7; a ratchet wheel 35 and pawl 28 mechanism, a disc 34 and a driving gear 31 are fixedly connected to the crank rod 30, the driving gear 31 is meshed with a driven gear 32, the driven gear 32 is coaxially and fixedly connected with an adjusting gear 33, the adjusting gear 33 is meshed with a rack 37, and the rack 37 is fixedly connected with the sliding plate 27; a second reset torsion spring is connected to the driving gear 31, one end of the second reset torsion spring is fixedly connected with the driving gear 31, and the other end of the second reset torsion spring is fixedly connected with the box body 7; the ratchet wheel 35 and the pawl 28 structure comprise a ratchet wheel 35 fixedly connected with the crank rod 30, the pawl 28 matched with the ratchet wheel 35 is rotatably connected to the box body 7, and the pawl 28 is connected with a first reset torsion spring 29; one end of the first reset torsion spring 29 is fixedly connected with the pawl 28, and the other end of the first reset torsion spring 29 is fixedly connected with the box body 7.

When the utility model is used, a medical worker stirs the disc 34 with one hand, the disc 34 drives the crank rod 30 to rotate, the other hand holds the handle, the handle is controlled to swing up and down around the supporting seat 24, the handle drives the rocker 25 to rotate around the supporting seat 24, the rocker 25 drives the crank rod 30 to rotate through the connecting rod 26, the crank rod 30 drives the driving gear 31 to rotate, the driving gear 31 is meshed to drive the driven gear 32 to rotate, the driven gear 32 coaxially drives the adjusting gear 33 to rotate, the adjusting gear 33 is meshed to drive the rack 37 to slide, and the rack 37 drives the sliding plate 27 to slide; the crank rod 30 also drives the ratchet wheel 35 to rotate, the pawl 28 is matched with the ratchet wheel 35 under the action of the first return spring to ensure that the ratchet wheel 35 can only rotate in a single direction, when the resetting is needed, the pawl 28 is controlled to rotate, the limitation of the pawl 28 on the ratchet wheel 35 is cancelled, the driving gear 31 rotates under the action of the second return spring to realize the resetting of the sliding plate 27, and finally the pawl 28 is released, and the pawl 28 is matched with the ratchet wheel 35 again; through adjustment mechanism A's setting, guarantee the utility model discloses adjust the position of sliding plate 27 when using, realize the regulation to the whole position of mechanism 6 of drawing.

As shown in fig. 1, the fixing mechanism 5 includes a fixing plate fixedly connected to the upper surface of the supporting plate 4, and a fixing bolt is threadedly connected to the fixing plate.

When the utility model is used, medical staff respectively place the supporting plate 4 and the fixed plate below and above the bed plate of the sickbed and screw the fixing bolt, and the fixing bolt is matched with the supporting plate 4 to fix the device on the sickbed; through the setting of fixed establishment 5, guarantee the utility model discloses fix this device on the sick bed when using, improve the reliability and the stability of this device.

The utility model discloses a working process does:

the utility model discloses when using, medical personnel at first use fixed establishment 5 to fix this device on the bed board: the medical staff puts the supporting plate 4 and the fixing plate under and on the bed board of the sickbed respectively, and screws up the fixing bolt, the fastening bolt is matched with the supporting plate 4 to fix the device on the sickbed;

then use elevating system to adjust the height of box body 7 according to patient's condition, box body 7 drives 6 lifts of pulling open mechanism: medical personnel use the first hand-operated rotary table 9 to control the first threaded rod 17 to rotate around the lifting frame 2, the first threaded rod 17 is matched with the supporting rod 13 to control the supporting rod 13 to slide along the threaded rod, the supporting rod 13 drives the first rotating rod 8 and the second rotating rod 10 to rotate relatively, the first rotating rod 8 drives the first connecting rod 18 to rotate around the supporting frame 1, meanwhile, the second connecting rod 11 and the fourth connecting rod 16 on the second rotating rod 10 slide and rotate, the second connecting rod 11 slides and rotates along the left and right sliding grooves 19, and the fourth connecting rod 16 slides and rotates along the lifting sliding groove 15; the third connecting rod 12 on the first rotating rod 8 drives the box body 7 to lift, and the vertical groove 23 on the box body 7 is matched with the limiting clamping block 14 on the supporting plate 4 to ensure that the box body 7 lifts; in addition, the support rod 13 is lifted along with the first rotating rod 8 and the second rotating rod 10, and the support rod 13 drives the lifting rack 2 to lift in the lifting groove 3 through a threaded rod;

the medical staff then uses adjustment mechanism a to adjust the position of the pull-off mechanism 6 according to the patient's condition: a medical worker stirs the disc 34 with one hand, the disc 34 drives the crank rod 30 to rotate, the other hand holds the handle, the handle is controlled to swing up and down around the supporting seat 24, the handle drives the rocker 25 to rotate around the supporting seat 24, the rocker 25 drives the crank rod 30 to rotate through the connecting rod 26, the crank rod 30 drives the driving gear 31 to rotate, the driving gear 31 is meshed with the driven gear 32 to drive the driven gear 32 to rotate, the driven gear 32 coaxially drives the adjusting gear 33 to rotate, the adjusting gear 33 is meshed with the rack 37 to drive the rack 37 to slide, and the rack 37 drives the sliding plate 27 to; the crank rod 30 also drives the ratchet wheel 35 to rotate, the pawl 28 is matched with the ratchet wheel 35 under the action of the first return spring to ensure that the ratchet wheel 35 can only rotate in a single direction, when the resetting is needed, the pawl 28 is controlled to rotate, the limitation of the pawl 28 on the ratchet wheel 35 is cancelled, the driving gear 31 rotates under the action of the second return spring to realize the resetting of the sliding plate 27, and finally the pawl 28 is released, and the pawl 28 is matched with the ratchet wheel 35 again;

finally, the pull-open mechanism 6 is adjusted, and the adjusting knob 40 is controlled to rotate according to the condition of the patient: the adjusting knob 40 drives the second threaded rod 39 to cooperate with the sliding plate 27 to drive the draw hook 36 to move, so as to control the drawing degree of the draw hook 36, and the adjusting knobs 40 can be adjusted to control the drawing degrees of different positions.

Claims

1. The utility model provides an orthopedic surgical retractor, includes backup pad (4), its characterized in that: the upper surface of the supporting plate (4) is fixedly connected with a fixing mechanism (5), the supporting plate (4) is also connected with a box body (7), the box body (7) is connected with the supporting plate (4) in a lifting mode, the box body (7) is connected with a pulling-open mechanism (6) in a sliding mode, and an adjusting mechanism A matched with the pulling-open mechanism (6) is arranged in the box body (7); the bottom surface of the supporting plate (4) is fixedly connected with a supporting frame (1), a lifting mechanism is arranged on the supporting frame (1), and the lifting mechanism is matched with the box body (7); the pulling-open mechanism (6) comprises a sliding plate (27) which is in sliding connection with the box body (7), a limiting groove (38) is arranged on the sliding plate (27), and a transverse groove (22) which is matched with the limiting groove (38) is arranged on the box body (7); the sliding plate (27) is provided with a plurality of threaded holes, the threaded holes are connected with a second threaded rod (39) in a threaded manner, one end of the second threaded rod (39) is fixedly connected with an adjusting knob (40), and the other end of the second threaded rod (39) is rotatably connected with a drag hook (36).

2. The orthopedic surgical retractor according to claim 1, wherein: the lifting mechanism comprises a second rotating rod (10) which is rotatably connected with the support frame (1), a support rod (13) is rotatably connected at the middle position of the second rotating rod (10), and a first rotating rod (8) is rotatably connected on the support rod (13); two ends of the first rotating rod (8) are respectively and fixedly connected with a second connecting rod (11) and a fourth connecting rod (16), and two ends of the second rotating rod (10) are respectively and fixedly connected with a first connecting rod (18) and a third connecting rod (12); the support frame (1) is further provided with a left sliding groove (19), a right sliding groove (15) and a lifting sliding groove (15), the left sliding groove (19) and the right sliding groove (15) are matched with the second connecting rod (11) and the fourth connecting rod (16) respectively, the first connecting rod (18) is rotatably connected with the support frame (1), and the second connecting rod (11) is slidably and rotatably connected with the support frame (1).

3. The orthopedic surgical retractor according to claim 1, wherein: the lifting frame (1) is further provided with a lifting groove (3), a lifting frame (2) is connected in the lifting groove (3) in a sliding mode, a first threaded rod (17) is connected to the lifting frame (2) in a rotating mode, the first threaded rod (17) is in threaded connection with the supporting rod (13), and one end, far away from the lifting frame (2), of the first threaded rod (17) is fixedly connected with a hand-operated rotary table (9); the box body (7) is provided with a vertical groove (23), and the supporting plate (4) is fixedly connected with a limiting clamping block (14) matched with the vertical groove (23).

4. The orthopedic surgical retractor according to claim 1, wherein: the adjusting mechanism A comprises a supporting seat (24) fixedly connected with the box body (7), a rocker (25) is rotatably connected onto the supporting seat (24), one end of the rocker (25) is fixedly connected with a handle, the other end of the rocker (25) is rotatably connected with a connecting rod (26), the other end of the connecting rod (26) is rotatably connected with a crank rod (30), and the crank rod (30) is rotatably connected with the box body (7); a ratchet-pawl mechanism, a disc (34) and a driving gear (31) are fixedly connected to the crank rod (30), the driving gear (31) is meshed with a driven gear (32), the driven gear (32) is coaxially and fixedly connected with an adjusting gear (33), the adjusting gear (33) is meshed with a rack (37), and the rack (37) is fixedly connected with the sliding plate (27); the driving gear (31) is connected with a second reset torsion spring, one end of the second reset torsion spring is fixedly connected with the driving gear (31), and the other end of the second reset torsion spring is fixedly connected with the box body (7).

5. An orthopedic surgical retractor according to claim 4 further comprising: the ratchet wheel and pawl mechanism comprises a ratchet wheel (35) fixedly connected with the crank rod (30), a pawl (28) matched with the ratchet wheel (35) is rotatably connected to the box body (7), and the pawl (28) is connected with a first reset torsion spring (29); one end of the first reset torsion spring (29) is fixedly connected with the pawl (28), and the other end of the first reset torsion spring (29) is fixedly connected with the box body (7).

6. The orthopedic surgical retractor according to claim 1, wherein: the fixing mechanism (5) comprises a fixing plate fixedly connected with the upper surface of the supporting plate (4), and a fixing bolt is connected to the fixing plate in a threaded manner.