CN209474696U - A chain retractor for abdominal incision - Google Patents

Abstract

The utility model discloses a chain-type abdominal incision retractor, which comprises a retractor body, the retractor body includes a retractor hook and a transmission chain, one end of the retractor hook is connected with one end of the transmission chain, and the retractor The end of the pull hook far away from the transmission chain is hook-shaped; the transmission chain is provided with a drive assembly for driving the transmission chain to move, and the drive assembly is provided with a locking mechanism to position the drive chain. An adjustable support rod is provided below the drive assembly. A fixed component is installed on the adjustable support rod, and the fixed component can be clamped on the operating bed. The transmission chain of the utility model can be bent and folded, which solves the technical problems that the rack of the existing retractor cannot be bent, occupies a large space, and is easy to reach the third assistant during the operation, ensures the smooth operation of the operation, and improves the operation efficiency. Efficiency: After the fixed component is clamped with the operating bed, the longitudinal angle of the retractor hook can be adjusted, which is convenient for using the retractor hook to hook the tissue to be retracted, and the operation is convenient and labor-saving.

Description

A chain retractor for abdominal incision

technical field

The utility model relates to an abdominal operation retractor, in particular to a chain-type abdominal incision retractor, which belongs to the technical field of medical instruments.

Background technique

At present, during abdominal surgery, in order to obtain a good surgical field of view, it is necessary to use a retractor to retract the tissue to expose deep tissues and organs. Usually, several assistant doctors are assigned to perform the operation of retracting the tissue to ensure the surgeon's Surgical operation. On the one hand, this method makes the labor intensity of the doctors engaged in stretching work high, especially for operations lasting for more than several hours. The size of the field is difficult to control, which increases the risk of surgery.

Notification number is that the Chinese patent of CN2636825Y discloses a kind of abdominal retractor, it is characterized in that comprises cross block, strut bar, rack, hook plate, and cross block links to each other with operating bed frame, and strut passes cross block, and passes tight The fixed screw is connected with the cross block, the upper end of the strut is provided with a connecting hole for installing the horn, one end of the horn is inserted into the connecting hole, the other end of the horn is connected with the rack box, and the rack box is installed There is a pitch-adjusting gear, and the pitch-adjusting gear meshes with a rack passing through the rack box, and the pitch-adjusting gear is connected with a rocker, and one end of the rack is connected with a hook plate. The utility model has the advantages of simple structure, reducing the labor intensity of doctors, and fully exposing the operation field.

Although the above-mentioned technical scheme has solved the deficiencies in the prior art to a certain extent, the following defects still exist:

1) The rack cannot be bent, takes up a lot of space, and is easy to reach the third assistant during the operation, which affects the smooth operation of the operation and reduces the efficiency of the operation;

2) After the cross block and the operating bed frame are fixed, the longitudinal angle of the hook plate cannot be adjusted, and it is extremely inconvenient to operate when using the hook plate to pull tissue.

Utility model content

The purpose of this utility model is to provide a chain type abdominal incision retractor to solve the technical problems proposed in the background technology.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

A chain type abdominal incision retractor comprises a retractor body, the retractor body includes a retractor hook and a transmission chain, one end of the retractor hook is connected to one end of the transmission chain, the One end of the retractor pull hook away from the transmission chain is set as a hook; the transmission chain is provided with a drive assembly for driving the transmission chain to move, the drive assembly includes a control box, a sprocket and a hand wheel, and runs through the The control box is provided with a chain insertion port, and the transmission chain passes through the chain insertion port, and the sprocket is connected to the control box through a rotating shaft and meshed with the transmission chain inside the control box. One end of the rotating shaft is exposed to the control box and is coaxially connected with the hand wheel; the driving assembly is provided with a locking mechanism to position the transmission chain, and the bottom of the driving assembly is provided with an adjustable support rod. A fixing component is installed on the adjustable support rod, and the fixing component can be clamped on the operating bed.

The utility model is further set as: the retractor pull hook near one end of the transmission chain is provided with two hinged sleeves at intervals, the two hinged sleeves are coaxially arranged, and the drive chain is close to the retractor pull hook One end of the drive chain is placed between the two articulated sleeves; the end of the transmission chain close to the retractor hook is provided with a mounting hole coaxial with the two articulated sleeves, and a shaft is inserted in the mounting hole. The two ends of the shaft core are exposed to the two hinge sleeves, one end of the shaft core is connected with a first limit cap, and the other end of the shaft core is threadedly connected with a second limit cap.

The utility model is further configured as follows: the lower surface of the chain insertion inlet is set as a convex curved surface, and the sprocket meshes with the transmission chain below the transmission chain.

The utility model is further configured as follows: the locking mechanism includes a pull ring, a locking column, a limit column and a lock sleeve, and a socket is provided through the shaft and the hand wheel in the axial direction, and the locking column is inserted into the The jack and both ends are exposed to the handwheel and the control box, one end of the locking column close to the handwheel is connected to the pull ring, and the other end of the locking column is connected to the limiting column; The outer wall of the locking column is provided with a limit block in the axial direction, and the inner wall of the socket is provided with a limit slot adapted to the limit block, and the limit block is embedded in the limit slot; the lock The hollow end of the sleeve is open and is sleeved on the outside of the limit post. The open end of the lock sleeve is connected to the outer wall of the control box. The end of the lock sleeve far away from the control box forms a limit cavity inside. A number of equidistant riflings are provided on the side wall of the limiting cavity, the limiting column is adapted to the limiting cavity, and an active cavity is formed inside the end of the locking sleeve close to the control box, and the limiting column can be The movable cavity rotates around an axis.

The utility model is further set as: the adjustable support rod includes an inner rod and an outer rod, the upper end of the inner rod is connected to the bottom of the control box, the inner rod is inserted inside the outer rod, and the The inner rod and the outer rod are correspondingly provided with at least six positioning holes, and the inner rod is fixed to the outer rod by positioning pins after being lifted.

The utility model is further configured as follows: the fixed assembly includes a movable base, a clamping seat and a locking screw, the movable base is provided with a guide hole, and the outer rod passes through the guide hole and the movable The movable base is slidably connected, one end of the movable base is connected with the clamping seat, and the clamping seat is provided with a card slot, and the card slot is engaged and fixed with the side of the operating bed, and the movable base The end away from the clamping seat is provided with an adjustment hole connected to the inside of the guide hole and has an internal thread. There are handles.

The utility model is further configured as follows: the lower part of the end of the control box away from the pull hook of the retractor is connected with a hollow storage box with an open upper end.

In summary, the utility model has the following beneficial effects:

1. The transmission chain of the utility model can be bent and folded, which solves the technical problems that the rack of the existing retractor cannot be bent, occupies a large space, and is easy to reach the third assistant during the operation, ensures the smooth operation of the operation, and improves improved surgical efficiency;

2. The retractor hook of the present invention is hinged with the transmission chain. After the clamping seat is clamped with the operating bed, the longitudinal angle of the retractor hook can be adjusted, which is convenient for using the retractor hook to hook the tissue to be retracted. It is convenient and labor-saving to operate;

3. The hook of the retractor of the present utility model can maintain the retracted state during the operation without manual labor after retracting the incision, avoiding the injury caused by repeated pulling to the patient, facilitating the smooth operation of the operation, and avoiding the Overcrowding in the operating room caused by the provision of auxiliary doctors;

4. The driving assembly of the utility model is convenient to control the size of the surgical field retracted by the retractor hook, which ensures the smooth progress of the surgical operation and improves the surgical efficiency;

5. The locking mechanism of the utility model can effectively avoid the retraction of the transmission chain, thereby avoiding the injury caused by repeated pulling to the patient, and improving the operation efficiency with the smooth operation of the operation;

6. The height of the retractor body of the present invention can be realized by adjusting the adjustable support rod, which is suitable for patients with different body types and has a wider application range.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the first viewing angle of the utility model;

Fig. 2 is a schematic diagram of the overall structure of the second perspective of the utility model;

Fig. 3 is the internal structural diagram of control box in the utility model;

Fig. 4 is an exploded view of the drive assembly and the locking mechanism in the utility model;

Fig. 5 is the front view of the opening end side of the lock sleeve in the utility model;

Fig. 6 is the exploded view of the local structure of the utility model;

Fig. 7 is an exploded view of the fixing assembly in the present invention.

Among the figure: 1, retractor body; 11, retractor pull hook; 111, hinge sleeve; 12, transmission chain; 121, mounting hole; 122, shaft core; 123, first limit cap; 124, second limit cap Bit cap; 2, control box; 21, rotating shaft; 22, sprocket wheel; 23, hand wheel; 24, jack; 241, limit groove; 25 locking column; 251, pull ring; 252, limit block; Limiting post; 26, lock sleeve; 261, limiting cavity; 262, equidistant rifling; 263, movable cavity; 27, chain placement entrance; 3, adjustable support rod; 31, inner rod; , positioning hole; 34, positioning pin; 4, movable base; 41, clamping seat; 42, locking screw; 43, guide hole; 44, card slot; 45, adjustment hole; 46, handle; 5, storage box .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" and the like are based on the orientation or positional relationship shown in the accompanying drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "setting", "connecting" and "connecting" should be understood in a broad sense, for example, it can be a fixed connection or a Detachable connection, or integral connection; it can be mechanical connection, direct connection, indirect connection through an intermediary, or internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Embodiment, a kind of chain abdominal incision retractor, as shown in Fig. 1 to Fig. 7, comprises retractor body 1, retractor body 1 comprises retractor pull hook 11 and transmission chain 12, retractor pull hook 11 One end of the retractor hook 11 is connected to one end of the transmission chain 12, and the end of the retractor hook 11 away from the transmission chain 12 is set as a hook; specifically, the width of the retractor hook 11 has three specifications: 12cm, 5cm, and 3cm, which are suitable for different The slit of the size; the drive chain 12 is provided with a drive assembly for driving the drive chain 12 to move, the drive assembly includes a control box 2, a sprocket 22 and a hand wheel 23, the control box 2 is provided with a chain insertion port 27, and the drive chain 12 is from The chain is put through the entrance 27, and the sprocket 22 is rotationally connected with the control box 2 through the rotating shaft 21 and meshed with the transmission chain 12 inside the control box 2. One end of the rotating shaft 21 is exposed to the control box 2 and is coaxially connected with the hand wheel 23; A locking mechanism is provided on the drive assembly to position the transmission chain 12. An adjustable support rod 3 is provided below the drive assembly. A fixed assembly is installed on the adjustable support rod 3, and the fixed assembly can be clamped on the operating bed.

Specifically, the locking mechanism of the present utility model includes a pull ring 251, a locking post 25, a limit post 253 and a lock sleeve 26, and an insertion hole 24 is provided through the rotating shaft 21 and the hand wheel 23 in the axial direction, and the locking post 25 is inserted into the In the jack 24 and both ends are exposed to the handwheel 23 and the control box 2, one end of the locking column 25 close to the handwheel 23 is connected with the pull ring 251, and the other end of the locking column 25 is connected with the limit column 253; the outer wall of the locking column 25 is along the A limit block 252 is arranged in the axial direction, and a limit groove 241 adapted to the limit block 252 is provided on the inner wall of the jack 24, and the limit block 252 is embedded in the limit groove 241; the hollow end of the lock sleeve 26 is open and sleeved on the On the outside of the limit post 253, the open end of the lock sleeve 26 is connected to the outer wall of the control box 2, and the end of the lock sleeve 26 away from the control box 2 forms a limit cavity 261, and the side wall of the limit cavity 261 is provided with several equidistant rifling lines 262 , the limit column 253 is adapted to the limit cavity 261, and the lock sleeve 26 close to the control box 2 forms a movable cavity 263 inside, and the limit column 253 can rotate around the axis in the movable cavity 263.

The adjustable support rod 3 of the present utility model comprises an inner rod 31 and an outer rod 32, the upper end of the inner rod 31 is connected with the bottom of the control box 2, the inner rod 31 is inserted inside the outer rod 32, and the inner rod 31 and the outer rod 32 are Correspondingly, six positioning holes 33 are provided, and the inner rod 31 is fixed to the outer rod 32 by the positioning pin 34 after lifting; or even multiple. Such arrangement facilitates the adjustment of the height of the retractor body 1 .

The fixed assembly of the present utility model includes a movable base 4, a clamping seat 41 and a locking screw rod 42. The movable base 4 is provided with a guide hole 43, and the outer rod 32 is slidably connected with the movable base 4 through the guide hole 43. One end of the movable base 4 is connected with the clamping seat 41, and the clamping seat 41 is provided with a card slot 44, and the card slot 44 is engaged and fixed with the bed side of the operating bed, and the end of the movable base 4 far away from the clamping seat 41 is provided with a communication channel. Inside the guide hole 43 is an adjusting hole 45 with an internal thread. The locking screw 42 is threadedly connected to the adjusting hole 45 . A handle 46 is provided at the end of the locking screw 42 away from the clamping seat 41 . Arranged in this way, the fixed position of the outer rod 32 on the movable base 4 can be adjusted by adjusting the locking screw rod 42, and the fixing assembly is easy to disassemble.

Preferably, one end of the retractor hook 11 close to the transmission chain 12 is provided with two articulated sleeves 111 at intervals, the two articulated sleeves 111 are arranged coaxially, and the end of the transmission chain 12 close to the retractor hook 11 is placed on the two articulated sleeves 111 Between; one end of the transmission chain 12 close to the pull hook 11 of the retractor is provided with a mounting hole 121 coaxial with the two articulated sleeves 111, and a shaft core 122 is inserted in the mounting hole 121, and the two ends of the shaft core 122 are exposed on two In the hinge sleeve 111 , one end of the shaft core 122 is connected with a first limit cap 123 , and the other end of the shaft core 122 is threaded with a second limit cap 124 . Set up in this way, it is convenient to replace the retractor draw hook 11. After the clamping seat 41 is clamped with the operating bed, the longitudinal angle of the retractor draw hook 11 is adjustable, which is convenient to use the retractor draw hook 11 to hook the tissue to be retracted, and operate It is convenient and labor-saving to get up.

Preferably, the lower surface of the chain insertion opening 27 is configured as a convex curved surface, and the sprocket 22 meshes with the transmission chain 12 below the transmission chain 12 . Arrange like this, avoid chain to block the transmission chain 12 when the transmission chain 12 is retracted and placed at the corners of the entrance 27, and facilitate the positioning adjustment of the transmission chain 12.

Preferably, a hollow storage box 5 with an open upper end is connected to the lower part of the end of the control box 2 away from the retractor hook 11 . Arranged in this way, after the tissue retraction is completed, the end of the transmission chain 12 is placed in the storage box 5, so as to prevent the end of the transmission chain 12 from drooping and breaking away from the sterile field.

Working principle: when the chain-type abdominal incision retractor disclosed by the utility model is used, the adjustable support rod 3 designed by the utility model is first fixed on the side of the operating bed by the itinerant nurse under the guidance of the surgeon; Specifically, the movable base 4 is fixedly engaged on the side of the bed body through the card slot 44, and then the adjustable support rod 3 is fixedly connected to the movable base 4, and the adjustable support rod 3 is adjusted by turning the handle 46 at the same time. The fixed position of the telescopic rod on the movable base 4, after the fixing is completed, the medical staff will adjust the adjustable support rod 3 to a suitable height according to the needs of the operation, and fix it through the positioning pin 34, so that it can adjust the retractor body 1, then insert the head end of the retractor hook 11 with an inclined angle into the patient's surgical incision; if two-way pulling is required, another retractor of the present invention can be placed on the other side of the operating bed; the patient The degree of opening of the slit is adjusted by turning the hand wheel 23. Specifically, when the degree of opening of the slit is adjusted, the pull ring 251 is first pulled to extract the limit post 253 from the limit cavity 261, and turn The hand wheel 23, the hand wheel 23 drives the locking column 25 to rotate, the limiting column 253 rotates synchronously with the locking column 25 in the movable cavity 263, the limiting block 252 drives the rotating shaft 21 to rotate, and the rotating shaft 21 drives the sprocket 22 to rotate, and the sprocket 22 drives The transmission chain 12 moves to realize the adjustment of the opening degree of the notch; after the adjustment of the opening degree of the notch is completed, push the pull ring 251 to the lock sleeve 26 side to insert the limit post 253 into the limit cavity 261, and the lock sleeve 26 locks Hold the limit post 253 to realize the positioning of the transmission chain 12; after the pulling is completed, the utility model always maintains a stable orientation and positioning, ensuring that the retractor body 1 is always at a suitable angle and position with the patient's incision, preventing rebound , so that the incision of the patient can be opened to a suitable opening, and the degree of retraction can be controlled ideally, which is convenient for the surgeon to operate, and the effect is very ideal. After the operation, the retractor is sterilized at high temperature for turnover and recycling.

This specific embodiment is only a preferred embodiment of the utility model, and does not limit the utility model in any form; any person familiar with the art can use The methods and technical contents disclosed above make many possible changes and modifications to the technical solution of the utility model, or modify them into equivalent embodiments with equivalent changes. Therefore, any simple modifications, equivalent replacements, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still protected by the technical solutions of the present invention. within range.

Claims (7)

1. a kind of chain type abdominal section retractor, including retractor body (1), it is characterised in that: retractor body (1) packet Include retractor drag hook (11) and driving chain (12), the one of one end of the retractor drag hook (11) and the driving chain (12) End connection, the retractor drag hook (11) are set as hook-shaped far from the one end of the driving chain (12)；The driving chain (12) it is equipped with the driving assembly for driving the driving chain (12) mobile, the driving component includes control box (2), chain (22) and handwheel (23) are taken turns, through the control box (2) equipped with chain posting port (27), the driving chain (12) is from the chain Posting port (27) passes through, and the sprocket wheel (22) is by shaft (21) and the control box (2) rotation connection and in the control Is engaged with the driving chain (12) inside box (2), wherein one end of the shaft (21) expose to the control box (2) and with The handwheel (23) is coaxially connected；The driving component is equipped with lockable mechanism, with positioning transmission chain (12), the driving group The lower section of part is equipped with adjustable support rod (3), is equipped with fixation kit, the fixation kit on the adjustable support rod (3) Operating bed can be connected in.

2. a kind of chain type abdominal section retractor according to claim 1, it is characterised in that: the retractor drag hook (11) One end close to the driving chain (12) is equipped at intervals with two hinged sets (111), and described two hinged sets (111) coaxially set It sets, the driving chain (12) is placed between described two hinged sets (111) close to one end of the retractor drag hook (11)；Institute It states driving chain (12) and is equipped with the installation coaxial with described two hinged sets (111) close to one end of the retractor drag hook (11) Hole (121), the mounting hole (121) is interior to be inserted with a central spindle (122), and the both ends of the central spindle (122) expose to described two Wherein one end of hinged set (111), the central spindle (122) is connected with the first limited cap (123), the central spindle (122) it is another End is threaded with the second limited cap (124).

3. a kind of chain type abdominal section retractor according to claim 1, it is characterised in that: the chain posting port (27) Lower surface be set as convex surface, lower section and the driving chain (12) of sprocket wheel (22) the Yu Suoshu driving chain (12) are nibbled It closes.

4. a kind of chain type abdominal section retractor according to claim 1, it is characterised in that: the lockable mechanism includes drawing Ring (251), locking column (25), limited post (253) and lock tube (26), are equipped with axially through the shaft (21) and handwheel (23) Jack (24), the locking column (25) is inserted in the jack (24) and both ends expose to the handwheel (23) and control box (2), The locking column (25) connect close to the one end of the handwheel (23) with the pull ring (251), the locking column (25) it is another End is connect with the limited post (253)；Locking column (25) the outer wall edge is axially arranged with limited block (252), the jack (24) Inner wall is equipped with the limiting slot (241) being adapted to the limited block (252), and the limited block (252) is embedded in the limiting slot (241)；The lock tube (26) is hollow open at one end and is sheathed on the outside of the limited post (253), the opening of the lock tube (26) It holds and is connect with the outer wall of control box (2), the lock tube (26) forms limit chamber inside one end far from control box (2) (261), limit chamber (261) side wall is equipped with several equidistant riflings (262), the limited post (253) and the limit chamber (261) it is adapted to, the lock tube (26) forms movable chamber (263) inside one end of control box (2), the limited post It (253) can be in the movable chamber (263) interior pivoting.

5. a kind of chain type abdominal section retractor according to claim 1, it is characterised in that: the adjustable support rod It (3) include interior bar (31) and outer bar (32), the upper end of the interior bar (31) is connect with the bottom of control box (2), described interior Bar (31) is inserted in the outer bar (32) inside, is correspondingly provided at least six positioning in the interior bar (31) and the outer bar (32) Hole (33), it is fixed by shop bolt (34) and the outer bar (32) after interior bar (31) lifting.

6. a kind of chain type abdominal section retractor according to claim 5, it is characterised in that: the fixation kit includes can Mobile base (4), clamping seat (41) and locking screw rod (42), the movable pedestal (4) are equipped with pilot hole (43), described outer Bar (32) pass through the pilot hole (43) be slidably connected with the movable pedestal (4), one end of the movable pedestal (4) and Clamping seat (41) connection, the clamping seat (41) offer card slot (44), the bed body side of the card slot (44) and operating bed It is fixed, the movable pedestal (4) is equipped with connection pilot hole (43) inside and band far from one end of clamping seat (41) Internal thread adjustment hole (45), the locking screw rod (42) are threadedly connected to the adjustment hole (45), the locking screw rod (42) one end far from clamping seat (41) is equipped with handle (46).

7. a kind of chain type abdominal section retractor described in any one according to claim 1~6, it is characterised in that: the control Box (2) processed is connected with the storage box (5) of hollow upper end opening far from one end lower part of the retractor drag hook (11).