CN215272998U

CN215272998U - Abdominal retractor

Info

Publication number: CN215272998U
Application number: CN202121148666.3U
Authority: CN
Inventors: 吕毅; 汤博
Original assignee: Xi'an Magnetic Medical Technology Co ltd
Current assignee: Xi'an Magnetic Medical Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-12-24
Anticipated expiration: 2031-05-26

Abstract

The utility model provides an abdomen retractor, which comprises an internal expanding mechanism, wherein the internal expanding mechanism comprises a plurality of blades which are stacked up and down, the plurality of blades are rotationally connected through a vertical rotating shaft, the lower end of the rotating shaft is provided with a fixing nut, and the blades are provided with through holes for the rotating shaft to pass through; the traction mechanism comprises a puncture needle hinged to the upper end of the rotating shaft, the puncture needle can rotate to a vertical state, and the upper end of the puncture needle is detachably connected with the traction driving mechanism. The utility model adopts a new retraction mode to form a certain operation space in the abdominal cavity of a patient, which provides good visual field for medical staff and is convenient for doctors to operate by using surgical instruments; the structure is stable, the adjustment is slow, the fine adjustment can be realized, and the injury to a patient caused by too high adjustment speed or too violent adjustment can be effectively avoided; can not cause damage to muscles and tissues. Greatly saves manpower, lightens the workload of medical personnel and improves the operation efficiency.

Description

Abdominal retractor

Technical Field

The utility model relates to the technical field of medical equipment, be applied to the laparoscopic surgery field, specificly relate to an abdomen retractor.

Background

The retractor is used for retracting tissues, exposing an operation visual field, is convenient to explore and operate, can be divided into a handheld type and an automatic type, has specifications of various shapes and sizes, and can be selected according to different operation requirements in clinical operations.

The abdominal retractor is suitable for liver transplantation, liver lobe resection, biliary tract operation, total stomach or near end resection, splenectomy, and upper abdominal operation along lower costal margin incision, and can also be used for other abdominal straight incision or transverse incision operations. In order to obtain an ideal surgical field, the opened abdomen needs to be kept in a good retraction state, when the retractor is used, the retraction hook only can pull the tissues near the incision to expose the field of view at the incision, but the surgical operation space inside the abdomen is not effectively improved, so that a doctor cannot obtain the ideal surgical field of view.

In view of the foregoing, there is a need to design an abdominal retractor that overcomes the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide an abdominal retractor that overcomes the above-mentioned problems.

In order to realize the purpose, the utility model discloses a technical scheme is: an abdominal retractor, comprising:

the internal expanding mechanism comprises a plurality of blades which are stacked up and down, the blades are rotatably connected through a vertical rotating shaft, a fixing nut is arranged at the lower end of the rotating shaft, and a through hole for the rotating shaft to pass through is formed in each blade;

the traction mechanism comprises a puncture needle hinged to the upper end of the rotating shaft, the puncture needle can rotate to a vertical state, and the upper end of the puncture needle is detachably connected with the traction driving mechanism.

The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.

Further, the blades are long strips.

Furthermore, the blade is evenly provided with a plurality of through holes along the length direction.

Further, both ends of the blade are circular arc-shaped.

Furthermore, the upper end of the puncture needle is provided with a hole;

the traction driving mechanism comprises a chain buckled with the hole, a rack arranged at the upper end of the chain and a gear meshed with the rack, the rack is arranged in a vertical sliding hole of the mounting box in a sliding manner, the gear is connected into a first cavity of the mounting box through a transmission shaft, the first cavity is communicated with the vertical sliding hole, and one end of the transmission shaft extends out of the side wall of the mounting box and is fixedly connected with a hand crank;

the mounting box passes through fixed establishment and operation table fixed connection.

Furthermore, a locking handle is further arranged on one side, close to the rack, of the mounting box and is connected with a tooth block through a sliding rod, the tooth block is arranged in a second cavity of the mounting box in a left-right sliding mode and meshed with the rack, one side, far away from the rack, of the tooth block is fixedly connected with the side wall of the second cavity through a spring, and the second cavity is communicated with the vertical sliding hole.

Further, fixed establishment include with the horizontal arm of suspending in midair that the mounting box is connected, with the fixture that the operation table border is connected, and with the vertical support bar that fixture is connected, the top fixed connection sleeve of vertical support bar, the horizontal arm of suspending in midair slides and establishes in the sleeve and fix through first positioning bolt.

Furthermore, the mounting box is arranged on the horizontal suspension arm in a sliding mode through a horizontal sliding hole and is fixed through a second positioning bolt arranged on one side of the mounting box in a penetrating mode.

Further, fixture includes sliding connection's last clamp splice and lower clamp splice, the both sides of clamp splice set up respectively the spout down, the lower extreme both sides of going up the clamp splice set up can be in gliding square slide bar in the spout, rotate connecting screw rod in the middle of the upper end of clamp splice down, it wears to establish and threaded connection to go up the clamp splice on the screw rod, the screw rod is worn out the one end of going up the clamp splice is equipped with the handle.

Furthermore, one side fixed connection sliding sleeve that the operation table was kept away from to clamp splice down, fixture slides through the sliding sleeve and establishes on the vertical support pole to it is fixed through the third positioning bolt who wears to establish at this sliding sleeve lateral wall.

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

1. the utility model discloses an abdomen retractor, it rotates a plurality of blades that stack from top to bottom through the pivot and connects, the pivot top is rotated and is connected the pjncture needle, the abdominal cavity is put into with the blade to accessible operation incision, utilize the inside supporting mechanism that the pjncture needle is constituteed a plurality of blades to fix at human cortex lower extreme, rethread tractive actuating mechanism stimulates the pjncture needle, can drive inside supporting mechanism and upwards support human cortex, thereby form certain operation space at patient's abdominal cavity inside, when providing good field of vision for medical staff, also make things convenient for the doctor to use surgical instruments to operate.

2. The utility model discloses an abdomen retractor, it drives chain and pjncture needle through rack and gear drive's mode and goes up and down, stable in structure adjusts slowly, can realize the fine setting, effectively avoids the injury that regulating speed is too fast or the violence caused the patient.

3. The utility model discloses an abdomen retractor, it drives tooth piece and rack toothing or break away from the meshing through the lock handle through setting up the lock handle on the mounting box to this realizes the locking and the release to the rack, further guarantees tractive in-process tractive actuating mechanism's stability, improves the security of operation in-process.

4. The utility model discloses an abdomen retractor, it is fixed this device and operation table through setting up fixed establishment, has saved the manpower greatly, has alleviateed medical staff's work load, has improved operation efficiency.

5. In the abdomen retractor of the utility model, the traction driving mechanism is arranged on the horizontal suspension arm in a sliding way, so that the horizontal position of the traction driving mechanism is convenient to adjust; the clamping mechanism is arranged on the vertical supporting rod in a sliding mode, so that the position of the traction driving mechanism in the vertical direction can be conveniently adjusted, the internal supporting mechanism is matched with the position of an operation incision, and the operation of a doctor is facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of an abdominal retractor provided by the present invention;

fig. 2 is a schematic view of the overall structure of the internal expanding mechanism and the drawing mechanism in the embodiment of the present invention;

FIG. 3 is a top view of an internal distractor mechanism and a traction mechanism (with the blades separated) according to an embodiment of the present invention;

FIG. 4 is a top view of an internal distractor mechanism and a traction mechanism (after the blades are closed) according to an embodiment of the present invention;

fig. 5 is a schematic cut-away view of a traction drive mechanism in an embodiment of the invention;

fig. 6 is a schematic view of the overall structure of the clamping mechanism in the embodiment of the present invention;

description of reference numerals:

1. an internal distraction mechanism; 11. a blade; 111. a through hole; 12. a rotating shaft; 13. fixing a nut;

2. a pulling mechanism; 21. puncturing needle; 211. an aperture;

3. a traction drive mechanism; 31. a chain; 32. a rack; 321. a limiting block; 33. a gear; 34. mounting a box; 341. A vertical slide hole; 342. a first cavity; 343. a second cavity; 344. a horizontal slide hole; 345. a second positioning bolt; 35. a drive shaft; 36. a hand crank;

4. a fixing mechanism; 41. a clamping mechanism; 411. an upper clamping block; 4111. a square slide bar; 412. a lower clamping block; 4121. a chute; 413. a screw; 414. a handle; 42. a vertical support bar; 43. a horizontal suspension arm; 44. a sleeve; 45. a first positioning bolt;

5. a locking handle; 51. a slide bar; 52. a tooth block; 53. a spring;

6. a sliding sleeve; 61. and a third positioning bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example one

Referring to fig. 1 to 4, an abdominal retractor includes:

the internal opening mechanism 1 comprises a plurality of blades 11 which are stacked up and down, the plurality of blades 11 are rotatably connected through a vertical rotating shaft 12, a fixing nut 13 is arranged at the lower end of the rotating shaft 12, and a through hole 111 for the rotating shaft 12 to pass through is formed in each blade 11; the blades 11 can be folded or manually rotated to be separated;

the traction mechanism 2 comprises a puncture needle 21 hinged to the upper end of the rotating shaft 12, the puncture needle 21 can rotate to be in a vertical state, the puncture needle can conveniently puncture from the subcutaneous part of a human body and penetrate out of the surface of the skin, and the upper end of the puncture needle 21 is detachably connected with the traction driving mechanism 3.

In the utility model, when in use, as shown in fig. 4, the plurality of blades 11 are folded, the blades 11 are put in from the position of the incision, then the puncture needle 21 is rotated and is penetrated out from the position of the thoracic cavity or the abdominal cavity where the medical apparatus is needed to be inserted, and then the blades 11 are spread in the human body as shown in the pattern of fig. 3; and then the traction driving mechanism 3 is connected with the puncture needle 21, and the blade 12 can be utilized to slightly pull the cortex of the patient upwards by slowly operating the traction driving mechanism 3, so that a certain operation space is formed in the abdominal cavity, and the operation visual field is expanded.

Preferably, the blade 11 is in a strip shape, so that the use is more convenient.

Preferably, the blade 11 is uniformly provided with a plurality of through holes 111 along the length direction thereof, so that the positions of the rotating shaft 12 and the puncture needle 21 on the blade 11 can be conveniently adjusted to meet different surgical requirements.

Preferably, both ends of the blade 11 are circular arc-shaped, so that the damage to the muscle and tissue is not caused.

Preferably, the blades 11 have a certain flexibility, and can be closely attached to the human tissue structure in an arc state under a stress state.

Example two

An abdominal retractor is different from the first embodiment in that the upper end of the puncture needle 21 is provided with a hole 211;

as shown in fig. 5, the drawing driving mechanism 3 includes a chain 31 fastened to the hole 211, a rack 32 disposed at an upper end of the chain 31, and a gear 33 engaged with the rack 32, the rack 32 is slidably disposed in a vertical sliding hole 341 of the mounting box 34, the gear 33 is connected to a first cavity 342 of the mounting box 34 through a transmission shaft 35, the first cavity 342 is communicated with the vertical sliding hole 341, and one end of the transmission shaft 35 extends out of a side wall of the mounting box 34 and is fixedly connected to a crank 36;

the mounting box 34 is fixedly connected with the operating table through the fixing mechanism 4, so that manpower is greatly saved, the workload of medical personnel is reduced, and the operation efficiency is improved.

In this embodiment, the handle 36 is rotated to make the transmission shaft 35 drive the gear 33 to rotate, the gear 33 can drive the rack 32 to slide upwards or downwards, the rack 32 further drives the chain 31 to move upwards or downwards, so as to make the puncture needle 21 move upwards or downwards, and finally make the internal opening mechanism 1 open a certain operation space inside the abdominal cavity of the patient.

Preferably, a locking handle 5 is further disposed on one side of the mounting box 34 close to the rack 32, the locking handle 5 is connected to a toothed block 52 through a sliding rod 51, the toothed block 52 is slidably disposed in a second cavity 343 of the mounting box 34 from left to right, the toothed block 52 is engaged with the rack 32, one side of the toothed block 52 away from the rack 32 is fixedly connected to a side wall of the second cavity 343 through a spring 53, and the second cavity 343 is communicated with the vertical sliding hole 341. The upper end of the rack 32 is also provided with a limiting block 321 to avoid sliding out of the vertical sliding hole 341 downwards.

In the present embodiment, the locking handle 5 is pulled outwards, the spring 53 is compressed, the toothed block 52 is disengaged from the rack 32, and the rack 32 is in a non-locking state, which can be driven by the gear 33 to slide up and down; when the locking handle 5 is released, the spring 53 returns to the original state, the toothed block 32 is pulled to the right by the elastic force and is meshed with the rack 32, and the rack 32 is locked.

Preferably, the fixing mechanism 4 includes a horizontal suspension arm 43 connected to the mounting box 34, a clamping mechanism 41 connected to the edge of the operating table, and a vertical support rod 42 connected to the clamping mechanism 41, a sleeve 44 is fixedly connected to the top end of the vertical support rod 42, the horizontal suspension arm 43 is slidably disposed in the sleeve 44 and fixed by a first positioning bolt 45, the first positioning bolt 45 is loosened, the horizontal suspension arm 43 is slid, and the horizontal suspension arm 43 extends out of the operating table by the length of the operating table.

Preferably, the mounting box 34 is slidably provided on the horizontal suspension arm 43 through a horizontal sliding hole 344, and is fixed by a second positioning bolt 345 inserted into one side of the mounting box 34, and the position of the pulling and driving mechanism 3 in the horizontal direction of the operating table can be adjusted by sliding the mounting box 34 by loosening the second positioning bolt 345.

Preferably, the clamping mechanism 41 includes an upper clamping block 411 and a lower clamping block 412 which are slidably connected, two sides of the lower clamping block 412 are provided with respective sliding grooves 4121, two sides of a lower end of the upper clamping block 411 are provided with square sliding rods 4111 which can slide in the sliding grooves 4121, a connecting screw 413 is rotatably connected in the middle of an upper end of the lower clamping block 412, the upper clamping block 411 is arranged in a penetrating manner and is connected to the screw 413 in a threaded manner, one end of the screw 413, which penetrates through the upper clamping block 411, is provided with a handle 414, and the distance between the upper clamping block 411 and the lower clamping block 412 can be adjusted by rotating the adjusting screw 413 through the handle 414, so that the clamping mechanism can be matched with the operating tables of all specifications and models, and is suitable for the currently and commonly used operating tables of the specifications of 25mm 8mm, 25mm 10mm, 30mm 8mm, 30mm 10mm and the like.

Preferably, one side of the lower clamping block 412, which is far away from the operating table, is fixedly connected with a sliding sleeve 6, the clamping mechanism 41 is slidably arranged on the vertical supporting rod 42 through the sliding sleeve 6, and is fixed through a third positioning bolt 61 penetrating through a side wall of the sliding sleeve 6, and the position of the traction driving mechanism 3 in the vertical direction of the operating table can be adjusted by loosening the third positioning bolt 61.

The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. An abdominal retractor, comprising:

the internal expanding mechanism (1) comprises a plurality of blades (11) which are stacked up and down, the blades (11) are rotatably connected through a vertical rotating shaft (12), a fixing nut (13) is arranged at the lower end of the rotating shaft (12), and a through hole (111) for the rotating shaft (12) to pass through is formed in each blade (11);

the traction mechanism (2) comprises a puncture needle (21) hinged to the upper end of the rotating shaft (12), the puncture needle (21) can rotate to be in a vertical state, and the upper end of the puncture needle (21) is detachably connected with the traction driving mechanism (3).

2. An abdominal retractor according to claim 1, wherein the blade (11) is elongate.

3. An abdominal retractor according to claim 2, wherein the blade (11) has a plurality of said through holes (111) uniformly formed along its length.

4. An abdominal retractor according to claim 2, wherein the blades (11) are rounded at both ends.

5. An abdominal retractor according to claim 1, wherein:

the upper end of the puncture needle (21) is provided with a hole (211);

the traction driving mechanism (3) comprises a chain (31) buckled with the hole (211), a rack (32) arranged at the upper end of the chain (31) and a gear (33) meshed and connected with the rack (32), the rack (32) is slidably arranged in a vertical sliding hole (341) of the mounting box (34), the gear (33) is connected into a first cavity (342) of the mounting box (34) through a transmission shaft (35), the first cavity (342) is communicated with the vertical sliding hole (341), and one end of the transmission shaft (35) extends out of the side wall of the mounting box (34) and is fixedly connected with a hand crank (36);

the mounting box (34) is fixedly connected with the operating table through a fixing mechanism (4).

6. The abdominal retractor according to claim 5, wherein a locking handle (5) is further disposed on a side of the mounting box (34) close to the rack (32), the locking handle (5) is connected to a toothed block (52) through a sliding rod (51), the toothed block (52) is slidably disposed in a second cavity (343) of the mounting box (34) from left to right, the toothed block (52) is engaged with the rack (32), a side of the toothed block (52) away from the rack (32) is fixedly connected to a side wall of the second cavity (343) through a spring (53), and the second cavity (343) is communicated with the vertical sliding hole (341).

7. The abdominal retractor according to claim 5, wherein the fixing means (4) comprises a horizontal suspension arm (43) connected to the mounting box (34), a clamping means (41) connected to the edge of the operating bed, and a vertical support rod (42) connected to the clamping means (41), a sleeve (44) is fixedly connected to the top end of the vertical support rod (42), and the horizontal suspension arm (43) is slidably disposed in the sleeve (44) and fixed by a first positioning bolt (45).

8. The abdominal retractor according to claim 7, wherein the mounting box (34) is slidably mounted on the horizontal suspension arm (43) through a horizontal sliding hole (344) and fixed by a second positioning bolt (345) inserted through one side of the mounting box (34).

9. The abdominal retractor according to claim 7, wherein the clamping mechanism (41) comprises an upper clamping block (411) and a lower clamping block (412) which are slidably connected, sliding grooves (4121) are respectively formed in two sides of the lower clamping block (412), square sliding rods (4111) which can slide in the sliding grooves (4121) are arranged on two sides of the lower end of the upper clamping block (411), a screw rod (413) is rotatably connected to the middle of the upper end of the lower clamping block (412), the upper clamping block (411) is arranged in a penetrating manner and is in threaded connection with the screw rod (413), and a handle (414) is arranged at one end of the screw rod (413) penetrating through the upper clamping block (411).

10. The abdominal retractor according to claim 9, wherein the lower clamping block (412) is fixedly connected with a sliding sleeve (6) at a side away from the operating table, and the clamping mechanism (41) is slidably arranged on the vertical support rod (42) through the sliding sleeve (6) and is fixed through a third positioning bolt (61) arranged on a side wall of the sliding sleeve (6) in a penetrating manner.