CN114504353A - Surgical retractor for hepatobiliary surgery - Google Patents

Abstract

The invention relates to the technical field of surgical draw hooks and discloses a surgical draw hook for hepatobiliary surgery, which comprises a control cabinet, wherein a screw rod is rotationally arranged in the control cabinet, the left side and the right side of the outer wall of the screw rod are respectively provided with a first thread and a second thread with opposite rotation directions, and the outer walls of the first thread and the second thread are respectively in threaded connection with a first nut and a second nut; during the use, take off the kink of two operation drag hooks in operation notched both sides, then twist move the knob can, it can make the screw rod rotatory to twist to move the knob, the screw rod is rotatory to first screw thread and the motion that opposite direction was done to second screw thread drive first nut and second nut through its outer wall soon, be close to each other or keep away from each other, when first nut and second nut keep away from each other, can drive two operation drag hooks through first regulating plate and second regulating plate and keep away from each other, two operation drag hooks keep away from each other and can strut the operation incision, fully expose the operation field of vision, be convenient for perform the operation.

Description

Surgical retractor for hepatobiliary surgery

technical field

The invention relates to the technical field of surgical retractors, in particular to a surgical retractor for hepatobiliary surgery.

Background technique

During liver surgery, the doctor will cut the skin and muscles of the patient, but since the muscles will contract, the surgical incision needs to be expanded with a surgical retractor after incising the muscle tissue, that is, the incision is pulled to both sides, so that the surgical field of view is In the actual operation, the medical staff who operate the surgical retractor have been in a state of nervousness and cannot move for a long time, so they will soon become fatigued, prone to errors, and affect the normal operation. Otherwise, a lot of manpower is wasted, and it is difficult to ensure the efficiency of the operation;

In order to solve the above problems, the invention patent of China Patent Bulletin No.: CN111407331B provides a surgical retractor for hepatobiliary surgery, including a clamping plate, a mounting block, a driving mechanism, an inflation mechanism, a telescopic mechanism, an exhaust mechanism, and a measuring mechanism. The surgical retractor for surgery can retract the patient's surgical site without the need for medical staff to hold the device. In addition, according to the actual use, medical staff can use the device to laterally retract the patient's surgical site. Or longitudinal adjustment processing, so as to adjust the retraction state of the patient's surgical site to the range required by the medical staff, it can be seen that by using the device in the application, the work fatigue of the medical staff is reduced, and the medical staff is improved. work efficiency.

Among the above surgical retractors, although the surgical part can be stretched horizontally or vertically, we found that in practical applications, there are still some shortcomings, such as:

In actual surgery, the demand for opening of the surgical incision is often "sideways", that is, only one side of the incision needs to be opened, and there is no need to open both sides. If both sides are opened at the same time, it will undoubtedly affect the operation. The diagonal corners of the incision (F1 and F2 in Figure 10) generate a large tensile force, which can easily lead to wound tearing;

Based on this, we propose a surgical retractor for hepatobiliary surgery.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a surgical retractor for hepatobiliary surgery, which has the advantage of facilitating adjustment of the opening range of the surgical incision.

(2) Technical solutions

In order to achieve the above-mentioned purpose of facilitating the adjustment of the opening range of the surgical incision, the present invention provides the following technical solution: a surgical retractor for hepatobiliary surgery includes a control cabinet, wherein a screw is rotatably arranged in the control cabinet, and the left and right sides of the outer wall of the screw are provided. The sides are respectively provided with a first thread and a second thread with opposite directions of rotation, the outer walls of the first thread and the second thread are respectively screwed with a first nut and a second nut, and the outer walls of the first nut and the second nut are respectively threaded. A first adjustment plate and a second adjustment plate are respectively fixedly installed, the first adjustment plate and the second adjustment plate both extend to the outside of the control cabinet, and both the first adjustment plate and the second adjustment plate are provided with surgical retractors;

The surgical retractor is composed of a hook body and a bent portion, and the bent portions of the two surgical retractors are arranged opposite to each other.

As a preferred technical solution of the present invention, one end of the screw rod extends to the outside of the control cabinet and is fixedly connected with a knob.

As a preferred technical solution of the present invention, a screw rod is rotatably installed in the first adjustment plate and the second adjustment plate, the outer wall of the screw rod is threadedly connected with a nut, and the outer wall of the nut is fixedly installed with a screw rod. A bottom column, the end of the bottom column extends to the outside of the first adjustment plate or the second adjustment plate and is connected with the hook body of the surgical retractor through a sliding mechanism.

As a preferred technical solution of the present invention, a turning button is fixedly installed at one end of the screw rod facing away from the control cabinet.

As a preferred technical solution of the present invention, the sliding mechanism includes a sliding plate, a chute, a sliding cabinet and a column groove, a sliding plate is fixedly installed at the end of the bottom column, and the sliding plate is slidably arranged on the inner wall of the sliding groove, so The sliding slot is opened in the sliding cabinet, the sliding cabinet is fixedly installed on the top of the hook body of the surgical retractor, and the top of the sliding cabinet is also provided with a column groove coupled with the bottom column.

As a preferred technical solution of the present invention, the sliding plate is internally threaded with a locking bolt, one end of the locking bolt is pressed against the inner wall of the chute, and the other end of the locking bolt extends to the outside of the sliding cabinet , the outer wall of the sliding cabinet is also provided with a movable groove coupled with the locking bolt, and the locking bolt is slidably arranged in the movable groove.

As a preferred technical solution of the present invention, a curved groove is formed on the bending portion, and a first extension portion and a second extension portion are respectively movably provided on both sides of the inner wall of the curved groove, and the first extension portion and the A pneumatic telescopic column is arranged between the second extension parts.

As a preferred technical solution of the present invention, an inner cavity is formed in the hook body, a movable plug is movably arranged on the inner wall of the inner cavity, and a cross bar is fixedly installed at the end of the movable plug facing away from the bending portion, and the A push rod is fixedly installed at the end of the transverse rod, and one end of the inner cavity facing the bending part is communicated with the telescopic column through the trachea.

As a preferred technical solution of the present invention, a spring is fixedly installed on the inner top wall of the push rod, a movable plate is fixedly installed at the bottom of the spring, a pull rod is fixedly installed at the bottom of the movable plate, and the bottom of the pull rod is fixedly installed. The end extends to the outside of the push rod and is fixedly connected with a connecting column, and the bottom of the connecting column is fixedly mounted with a pulling plate.

As a preferred technical solution of the present invention, the inner wall of the inner cavity is provided with a push groove coupled with the connecting column, and the connecting column is slidably arranged in the push groove;

The outer wall of the connecting column is fixedly installed with a clamping column, and the inner wall of the pushing groove is evenly provided with clamping grooves corresponding to the clamping column.

(3) Beneficial effects

Compared with the prior art, the present invention provides a surgical retractor for hepatobiliary surgery, which has the following beneficial effects:

1. When using the surgical retractor for hepatobiliary surgery, put the bent parts of the two surgical retractors on both sides of the surgical incision, and then turn the knob. Turning the knob can make the screw rotate, and the screw rotates through its outer wall. Drive the first nut and the second nut to move in opposite directions to the opposite first and second threads, approaching or moving away from each other, when the first nut and the second nut are far away from each other, the The adjustment plate can drive the two surgical retractors away from each other, and the two surgical retractors can be separated from each other to open the surgical incision, fully exposing the surgical field, and facilitating the operation.

2. The surgical retractor for hepatobiliary surgery needs to be adjusted along the direction of the surgical incision to adjust the opening position of the surgical incision during the operation, and the rotating knob can be rotated. The threaded nut on the outer wall moves, and the nut moves through the bottom column to drive the surgical retractor to move, so that the opening position of the surgical retractor on either side of the surgical incision can be adjusted. It is more convenient to use and can be freely adjusted according to the actual surgical situation. The distraction position of the surgical incision.

3. The surgical retractor for hepatobiliary surgery needs to be expanded and braced on one side of the surgical incision during surgery, and the hook body can be freely slid by loosening the locking bolt of the corresponding hook body. On the inner wall of the chute, the sliding plate at the bottom of the bottom column cannot slide in the chute, so the hook body cannot move relative to the bottom column. At this time, the sliding plate can move freely in the chute, so that the position of the hook body can be adjusted, and the single side of the surgical incision can be expanded and supported, and there is no need to expand both sides at the same time, which avoids the problem of tearing of the surgical incision.

4. The surgical retractor for hepatobiliary surgery, the movable plug moves in the inner cavity, and the air in the inner cavity can be filled into the telescopic column through the trachea. When the movable plug moves to the right in the inner cavity, the air is filled into the telescopic column through the trachea, The telescopic column extends and pushes out the first extension part and the second extension part, and through the extended first extension part and the second extension part, the longitudinal extension of the bending part can be expanded, so that the two sides of the surgical incision (or One side) can expose a wider surgical field, which is more convenient for the operation.

5. The operation retractor for hepatobiliary surgery, the movement of the movable plug is controlled by the pulling plate. When the movable plug needs to be moved, the pulling plate is pulled outward to make the clamping column on the connecting column disengage from the clamping groove, and the connecting column, pulling rod, The push rod and the cross rod freely push the movable plug to move. After moving to a suitable position, push the pull plate inward to make the clamping column on the connecting column re-insert into the clamping slot, which not only ensures the stability of the movable plug position, but also realizes the The convenience of adjusting the position of the movable plug.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the overall structure of the present invention;

Fig. 2 is the sectional view of the control cabinet part of the present invention;

Fig. 3 is the enlarged schematic diagram of the first regulating plate part of the present invention;

Fig. 4 is the sectional view of the first regulating plate part of the present invention;

Fig. 5 is the enlarged schematic diagram of the sliding cabinet part of the present invention;

Fig. 6 is the sectional view of the hook body part of the present invention;

Fig. 7 is the enlarged schematic diagram of the telescopic column part of the present invention;

Fig. 8 is the sectional view of the push rod part of the present invention;

Fig. 9 is the enlarged schematic diagram of the push rod part of the present invention;

FIG. 10 is a schematic diagram of the positions of various points when the surgical incision is opened according to the present invention.

In the figure: 1, control cabinet; 2, screw rod; 3, knob; 4, first thread; 5, second thread; 6, first nut; 7, second nut; 8, first adjustment plate; 9, first 2. Adjustment plate; 10. Screw rod; 11. Turning knob; 12. Nut; 13. Bottom column; 14. Slide plate; 15. Chute; 16. Sliding cabinet; 17. Column slot; 18. Locking bolt; 19 , movable groove; 20, hook body; 21, bending part; 22, inner cavity; 23, movable plug; 24, cross bar; 25, push rod; 26, curved groove; 27, first extension; 28, first 2. Extension; 29, telescopic column; 30, trachea; 31, spring; 32, movable plate; 33, pull rod; 34, connecting column; 35, pull plate; 36, clamping column; 37, push groove; 38, clamping groove .

Detailed ways

Example:

1 and 2, a surgical retractor for hepatobiliary surgery includes a control cabinet 1, a screw 2 is rotatably arranged in the control cabinet 1, and one end of the screw 2 extends to the outside of the control cabinet 1 and is fixedly connected with a knob 3. The knob 3 can control the rotation of the screw 2. The left and right sides of the outer wall of the screw 2 are respectively provided with a first thread 4 and a second thread 5 with opposite directions of rotation. The nut 6 and the second nut 7, the outer walls of the first nut 6 and the second nut 7 are respectively fixed with the first adjusting plate 8 and the second adjusting plate 9, the first adjusting plate 8 and the second adjusting plate 9 both extend to the control Outside the cabinet 1, the first adjustment plate 8 and the second adjustment plate 9 are provided with surgical retractors;

In this embodiment, as shown in FIG. 2 , the surgical retractor is composed of a hook body 20 and a bent portion 21 . The bent portions 21 of the two surgical retractors are arranged opposite to each other. When in use, the bent portions 21 of the two surgical retractors are removed. On both sides of the surgical incision, then turn the knob 3, the screw 2 can be rotated by turning the knob 3, and the rotation of the screw 2 drives the first nut 6 and the second screw 5 through the first thread 4 and the second thread 5 whose outer wall rotates in opposite directions. The second nut 7 moves in the opposite direction, approaching or moving away from each other. When the first nut 6 and the second nut 7 move away from each other, the first adjusting plate 8 and the second adjusting plate 9 can drive the two surgical retractors to each other. When the two surgical retractors are far away from each other, the surgical incision can be opened by the bending part 21, and the surgical field of view can be fully exposed, thereby facilitating the operation;

As shown in FIGS. 3 and 4 , the first adjusting plate 8 and the second adjusting plate 9 are both rotatably provided with a screw rod 10 , and the end of the screw rod 10 facing away from the control cabinet 1 is fixedly installed with a rotating button 11 , through the rotating button 11 The rotation of the screw rod 10 can be controlled, the outer wall of the screw rod 10 is threadedly connected with a nut 12, the outer wall of the nut 12 is fixedly installed with a bottom column 13, and the end of the bottom column 13 extends to the first adjustment plate 8 or the second adjustment plate 9 The outer part of the hook is connected with the hook body 20 of the surgical retractor through a sliding mechanism;

During the operation, when the opening position of the surgical incision needs to be adjusted along the direction of the surgical incision, the turning button 11 can be rotated. The silk mother 12 moves, and the silk mother 12 moves through the bottom column 13 to drive the surgical retractor to move, so that the opening position of the surgical retractor on any side of the surgical incision can be adjusted, which is more convenient to use and can freely adjust the surgical incision according to the actual surgical situation Please refer to Figure 10. Originally, the surgical retractor is stretched at A1 or A2. At this time, the surgical retractor can be stretched at B1, B2 or C1, C2 by turning button 11, and the stretch can be adjusted according to the needs of the operation. Location;

In this embodiment, please refer to FIG. 5 , the sliding mechanism includes a sliding plate 14 , a sliding groove 15 , a sliding cabinet 16 and a column groove 17 , a sliding plate 14 is fixedly installed at the end of the bottom column 13 , and the sliding plate 14 is slidably arranged on the inner wall of the sliding groove 15 , the sliding slot 15 is opened in the sliding cabinet 16, the sliding cabinet 16 is fixedly installed on the top of the hook body 20 of the surgical retractor, and the top of the sliding cabinet 16 is also provided with a column slot 17 coupled with the bottom column 13;

The sliding plate 14 is internally threaded with a locking bolt 18, one end of the locking bolt 18 is pressed against the inner wall of the chute 15, the other end of the locking bolt 18 extends to the outside of the sliding cabinet 16, and the outer wall of the sliding cabinet 16 is also provided with the movable groove 19 to which the locking bolt 18 is coupled, and the locking bolt 18 is slidably arranged in the movable groove 19;

During the operation, when it is necessary to expand the unilateral side of the surgical incision, the hook body 20 can be freely slid by loosening the locking bolt 18 of the corresponding hook body 20;

In normal state: the locking bolt 18 is pressed against the inner wall of the chute 15, the slide plate 14 at the bottom of the bottom post 13 cannot slide in the chute 15, so the hook body 20 cannot move relative to the bottom post 13, and surgery is required. When expanding the unilateral side of the incision, loosen the corresponding locking bolts 18. At this time, the sliding plate 14 can move freely in the chute 15, so that the position of the hook body 20 can be adjusted to expand the unilateral side of the surgical incision. Support, no need to expand the support on both sides at the same time, avoiding the problem of tearing the surgical incision;

Please refer to Figure 10, assuming that the surgical retractor is stretched at A1 at this time, then the locking bolt 18 can be loosened at this time, and then the hook body 20 can be slid to expand and support the A1 position. The same is true for other positions, and the B1 can also be independently stretched. Or expand the brace at C1, while at A2, B2, and C2, you can keep it as it is, or relax it, which can effectively prevent both sides from being expanded at the same time and tear at F1 and F2;

Please refer to FIG. 6 and FIG. 7 , a curved groove 26 is formed on the bending portion 21 , and a first extension portion 27 and a second extension portion 28 are respectively movably provided on both sides of the inner wall of the curved groove 26 . A pneumatic telescopic column 29 is arranged between the extension parts 28. When the gas is filled, the telescopic column 29 is extended, and when the gas is not filled, the telescopic column 29 is shortened, so that the first extension can be adjusted by extending or shortening the telescopic column 29. the extension and retraction of the part 27 and the second extension 28;

In this embodiment, as shown in FIG. 6 , an inner cavity 22 is formed in the hook body 20 , a movable plug 23 is movably arranged on the inner wall of the inner cavity 22 , and a cross bar 24 is fixedly installed at the end of the movable plug 23 facing away from the bending portion 21 . The end of the cross bar 24 is fixedly installed with a push rod 25, the end of the inner cavity 22 facing the bending part 21 is communicated with the telescopic column 29 through the trachea 30, and the movable plug 23 moves in the inner cavity 22 and can pass the trachea 30 to the inner cavity 22. The air in the telescopic column 29 is filled into the telescopic column 29. When the movable plug 23 moves to the right in the inner cavity 22, the air is filled into the telescopic column 29 through the trachea 30, and the telescopic column 29 extends and pushes out the first extension portion 27 and the second extension portion. 28. By extending the first extension part 27 and the second extension part 28, the longitudinal extension of the bending part 21 can be expanded, so that both sides (or one side) of the surgical incision can be exposed to a wider surgical field , which is more convenient for the operation. Specifically, if the original bending part 21 only uses A1 to open the surgical incision, then after the first extension part 27 and the second extension part 28 are extended, A1, B1 and C1 can be used at the same time. The surgical incision can be opened at the position to expose a wider surgical field. Correspondingly, at this time, the A2, B2 and C2 can be properly retracted to prevent the F1 and F2 from tearing;

As shown in FIGS. 8 and 9 , a spring 31 is fixedly installed on the inner top wall of the push rod 25 , a movable plate 32 is fixedly installed at the bottom of the spring 31 , a pull rod 33 is fixedly installed at the bottom of the movable plate 32 , and the bottom end of the pull rod 33 extends To the outside of the push rod 25 and fixedly connected with a connecting column 34, the bottom of the connecting column 34 is fixedly installed with a pull plate 35, the inner wall of the inner cavity 22 is provided with a push groove 37 coupled with the connecting column 34, and the connecting column 34 is slidably arranged In the push groove 37, the outer wall of the connecting column 34 is fixedly installed with a clamping column 36, and the inner wall of the pushing groove 37 is evenly provided with a clamping groove 38 corresponding to the clamping column 36;

In this embodiment, the movement of the movable plug 23 is controlled by the pull plate 35. When the movable plug 23 needs to be moved, the pull plate 35 is pulled outward to make the clamping column 36 on the connecting column 34 disengage from the clamping slot 38, and the connecting column can pass through the connecting column. 34. The pull rod 33, the push rod 25 and the cross rod 24 freely push the movable plug 23 to move. After moving to a suitable position, push the pull plate 35 inward so that the clamping post 36 on the connecting post 34 can be re-inserted into the clamping slot 38, that is, The stability of the position of the movable plug 23 is ensured, and the convenience of adjusting the position of the movable plug 23 is also realized.

The working principle of the present invention and the use flow:

When in use, put the bent parts 21 of the two surgical retractors on both sides of the surgical incision, and then turn the knob 3, which can make the screw 2 rotate, and the screw 2 rotates through its outer wall in the opposite direction. A thread 4 and a second thread 5 drive the first nut 6 and the second nut 7 to move in opposite directions, approaching or moving away from each other. When the first nut 6 and the second nut 7 are far away from each other, the first adjusting plate 8 With the second adjustment plate 9, the two surgical retractors can be driven away from each other, and the two surgical retractors can be separated from each other to open the surgical incision, fully exposing the surgical field, and facilitating the operation;

During the operation, when the opening position of the surgical incision needs to be adjusted along the direction of the surgical incision, the turning button 11 can be rotated. The silk mother 12 moves, and the silk mother 12 moves through the bottom column 13 to drive the surgical retractor to move, so that the opening position of the surgical retractor on any side of the surgical incision can be adjusted, which is more convenient to use and can freely adjust the surgical incision according to the actual surgical situation the open position;

During the operation, when it is necessary to expand and support one side of the surgical incision, the hook body 20 can be freely slid by loosening the locking bolt 18 of the corresponding hook body 20. Under normal conditions, the locking bolt 18 is pressed against the inner wall of the chute 15. The sliding plate 14 at the bottom of the bottom column 13 cannot slide in the chute 15, so the hook body 20 cannot move relative to the bottom column 13. When it is necessary to expand the unilateral side of the surgical incision, loosen the corresponding locking bolts 18. At this time, the sliding plate 14 can move freely in the chute 15, so that the position of the hook body 20 can be adjusted, and the single side of the surgical incision can be expanded without expanding the two sides at the same time, which avoids the problem of tearing of the surgical incision. ;

When the movable plug 23 moves in the inner cavity 22, the air in the inner cavity 22 can be filled into the telescopic column 29 through the trachea 30. When the movable plug 23 moves to the right in the inner cavity 22, the air is filled into the telescopic column 29 through the trachea 30, The telescopic column 29 extends and pushes out the first extension part 27 and the second extension part 28 , and through the extended first extension part 27 and the second extension part 28 , the longitudinal extension of the bending part 21 can be expanded, so that the operation Both sides (or one side) of the incision can expose a wider surgical field, which is more convenient for the operation;

The movement of the movable plug 23 is controlled by the pulling plate 35. When the movable plug 23 needs to be moved, the pulling plate 35 is pulled outward to make the clamping column 36 on the connecting column 34 disengage from the clamping slot 38, and the connecting column 34, the pulling rod 33, The push rod 25 and the cross rod 24 freely push the movable plug 23 to move. After moving to a suitable position, push the pull plate 35 inward to make the clamping post 36 on the connecting post 34 re-insert into the clamping slot 38, which not only ensures the movable plug 23 The stability of the position also realizes the convenience of adjusting the position of the movable plug 23 .

Claims (10)

1. Hepatobiliary surgery uses operation drag hook, including switch board (1), its characterized in that: the surgical retractor is characterized in that a screw rod (2) is rotationally arranged in the control cabinet (1), first threads (4) and second threads (5) which are opposite in rotation direction are respectively arranged on the left side and the right side of the outer wall of the screw rod (2), the outer walls of the first threads (4) and the second threads (5) are respectively in threaded connection with a first nut (6) and a second nut (7), a first adjusting plate (8) and a second adjusting plate (9) are respectively fixedly arranged on the outer walls of the first nut (6) and the second nut (7), the first adjusting plate (8) and the second adjusting plate (9) both extend to the outside of the control cabinet (1), and surgical hooks are respectively arranged on the first adjusting plate (8) and the second adjusting plate (9);

the surgical retractor is composed of a hook body (20) and a bending part (21), and the two bending parts (21) of the surgical retractor are arranged oppositely.

2. The surgical retractor for hepatobiliary surgery according to claim 1, wherein: one end of the screw rod (2) extends to the outside of the control cabinet (1) and is fixedly connected with a knob (3).

3. The surgical retractor for hepatobiliary surgery according to claim 1, wherein: all rotate in first regulating plate (8) and second regulating plate (9) and be provided with lead screw (10), the outer wall threaded connection of lead screw (10) has screw (12), the outer wall fixed mounting of screw (12) has sill post (13), the end of sill post (13) extends to the outside of first regulating plate (8) or second regulating plate (9) and is connected with hook body (20) of operation drag hook through slide mechanism.

4. The surgical retractor for hepatobiliary surgery according to claim 3, wherein: and a rotating button (11) is fixedly arranged at one end of the screw rod (10) back to the control cabinet (1).

5. The surgical retractor for hepatobiliary surgery according to claim 3, wherein: slide mechanism includes slide (14), spout (15), sliding cabinet (16) and post groove (17), the terminal fixed mounting of foundation (13) has slide (14), slide (14) slide and set up on the inner wall of spout (15), spout (15) are seted up in sliding cabinet (16), sliding cabinet (16) fixed mounting is at the coupler body (20) top of operation drag hook, sliding cabinet (16) the top still seted up with post groove (17) that foundation (13) coupled mutually.

6. The surgical retractor for hepatobiliary surgery according to claim 5, wherein: slide (14) female connection has locking bolt (18), the one end of locking bolt (18) is supported on the inner wall of spout (15), the other end of locking bolt (18) extends to the outside of sliding cabinet (16), the outer wall of sliding cabinet (16) still seted up with locking bolt (18) coupled movable groove (19), locking bolt (18) slide and set up in movable groove (19).

7. The surgical retractor for hepatobiliary surgery according to claim 1, wherein: a bending groove (26) is formed in the bending portion (21), a first extending portion (27) and a second extending portion (28) are movably arranged on two sides of the inner wall of the bending groove (26), and a pneumatic telescopic column (29) is arranged between the first extending portion (27) and the second extending portion (28).

8. The surgical retractor for hepatobiliary surgery according to claim 7, wherein: an inner cavity (22) is formed in the hook body (20), a movable plug (23) is movably arranged on the inner wall of the inner cavity (22), a cross rod (24) is fixedly mounted at one end, back to the bending part (21), of the movable plug (23), a push rod (25) is fixedly mounted at the tail end of the cross rod (24), and one end, facing the bending part (21), of the inner cavity (22) is communicated with a telescopic column (29) through an air pipe (30).

9. The surgical retractor for hepatobiliary surgery according to claim 8, wherein: the utility model discloses a push rod, including the interior roof fixed mounting of push rod (25) have spring (31), the bottom fixed mounting of spring (31) has fly leaf (32), the bottom fixed mounting of fly leaf (32) has pull rod (33), the bottom of pull rod (33) extends to the outside and the fixedly connected with spliced pole (34) of push rod (25), the bottom fixed mounting of spliced pole (34) has arm-tie (35).

10. The surgical retractor for hepatobiliary surgery according to claim 9, wherein: a push groove (37) coupled with the connecting column (34) is formed in the inner wall of the inner cavity (22), and the connecting column (34) is slidably arranged in the push groove (37);

the outer wall fixed mounting of spliced pole (34) has card post (36), the inner wall that pushes away groove (37) evenly seted up with card post (36) corresponding draw-in groove (38).

Images