CN218739117U

CN218739117U - Electric hook

Info

Publication number: CN218739117U
Application number: CN202222223935.9U
Authority: CN
Inventors: 陈华
Original assignee: Nanchang Huaanzhonghui Medical Appliances Co ltd
Current assignee: Nanchang Hua'an Zhonghui Health Technology Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-03-28
Anticipated expiration: 2032-08-23

Abstract

The utility model relates to a high frequency operation ware technical field, concretely relates to electric hook. The utility model provides an electric hook which comprises a handle; the push-pull key is connected to the handle in a sliding manner; the long rod is connected to one end of the handle; a hook body; the joint mechanism comprises a first joint and a second joint, the first joint is connected to one end, far away from the handle, of the long rod, one end of the second joint is connected with the hook body, and the other end of the second joint is rotatably connected with one end, far away from the long rod, of the first joint; the first connecting rod is connected inside the handle, the long rod and the first joint in a sliding mode, one end of the first connecting rod is connected with the push-pull key, and the other end of the first connecting rod is connected with the second joint in a rotating mode. The utility model provides a push-and-pull key can drive first link removal, and first link drives joint mechanism and rotates, realizes that the coupler body rotates around the length direction of long pole.

Description

Electric hook

Technical Field

The utility model relates to a high frequency operation ware technical field, concretely relates to electric hook.

Background

A high-frequency surgical instrument, also known as a high-frequency electric knife, is an electric surgical instrument for replacing a mechanical surgical knife to cut tissues. The high-frequency surgical instrument heats the organism tissue through high-frequency high-voltage current generated by the tip of the effective electrode, and realizes the separation and coagulation of the organism tissue, thereby achieving the purposes of cutting and hemostasis. The electric hook is one of high-frequency surgical instruments, integrates cutting, electrocoagulation, hooking, lifting, pulling and pushing, and has high use frequency in laparoscopic surgery.

The electric hook in the prior art generally comprises a hook body, a handle and a long rod, wherein the hook body and the handle are connected to two ends of the long rod along the length direction of the long rod, the cross-sectional area of the hook body is generally smaller than or equal to that of the long rod, and when the electric hook is used, for example, in a single-hole operation, the operation plane of the hook body is easily blocked by the long rod and is prevented from being observed by an operator.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to overcome the defects that the operation plane of the hook body in the prior art is easily blocked by the long rod, which prevents the observation of the operator, thereby providing an electric hook.

In order to solve the above problem, the utility model provides an electric hook, include:

a handle;

the push-pull key is connected to the handle in a sliding manner;

the long rod is connected to one end of the handle;

a hook body;

the joint mechanism comprises a first joint and a second joint, the first joint is connected to one end, far away from the handle, of the long rod, one end of the second joint is connected with the hook body, and the other end of the second joint is rotatably connected with one end, far away from the long rod, of the first joint;

the first connecting rod is connected inside the handle, the long rod and the first joint in a sliding mode, one end of the first connecting rod is connected with the push-pull key, and the other end of the first connecting rod is connected with the second joint in a rotating mode;

the push-pull key is suitable for driving the first connecting rod to move along the length direction of the long rod, and further drives the second joint to rotate around the first joint.

Optionally, the first joint is rotatably connected with the second joint through a first rotating shaft, the first connecting rod is rotatably connected with the second joint through a second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged in a staggered manner.

Optionally, the joint mechanism further comprises:

the third joint is arranged between the second joint and the hook body and is rotationally connected with the second joint;

and one end of the second connecting rod is rotatably connected to the first joint, and the other end of the second connecting rod is rotatably connected to the third joint and is suitable for driving the third joint to rotate around the second joint.

Optionally, the third joint is rotatably connected to the second joint through a third rotating shaft, the third rotating shaft is parallel to the first rotating shaft, and a plane where the axis of the third rotating shaft is located with the first rotating shaft intersects with the second connecting rod.

Optionally, the first joint, the second joint and the third joint are correspondingly provided with accommodating grooves, and the second connecting rod is movably connected in the accommodating grooves.

Optionally, the handle is hollow, and the handle includes:

the key groove is a through groove formed in the side part of the handle, and the push-pull key is arranged in the key groove in a sliding mode;

a plurality of first locking parts distributed on the inner wall of the handle or the key groove along the sliding direction of the push-pull key;

the push-pull key includes a second locking portion having a plurality of locking positions that cooperate with different ones of the first locking portions, and an unlocking position that is separated from the first locking portions.

Optionally, the push-pull key further comprises:

the shell is provided with a through groove along the sliding direction of the push-pull key;

the pressing part comprises a connecting end and a movable end, the connecting end is connected with the groove wall at one end of the through groove, the movable end extends along the sliding direction of the push-pull key and is movably arranged at the other end of the through groove, and the second clamping part is connected to the bottom of the movable end;

the pair of extension plates are oppositely connected to the bottom of the movable end, and two ends of the second clamping part are respectively connected with one ends of the pair of extension plates far away from the movable end;

the handle also comprises a clamping plate which is fixed in the handle and is positioned at the bottom of the key groove; the pair of extension plates respectively extend into the handle through two sides of the clamping plate, and a plurality of first clamping parts are arranged at the bottom of the clamping plate.

Optionally, both ends of the second locking portion are respectively rotatably connected to the pair of extension plates.

Optionally, the push-pull key further includes a transmission plate disposed at an interval from the pair of extension plates, the transmission plate is sequentially hinged to the housing, the first connecting rod and the handle, a long hole is formed in the transmission plate, and the transmission plate is slidably hinged to the housing through the long hole.

Optionally, the handle further comprises a rotating wheel, one end of the rotating wheel is fixedly connected with one end of the long rod close to the handle, and the other end of the rotating wheel is rotatably connected with one end of the handle; the push-pull key further comprises a movable block, the movable block is in threaded connection with the periphery of one end of the first connecting rod, and the movable block is hinged to the transmission plate.

The utility model has the advantages of it is following:

1. the utility model provides an electric hook, including handle, push-and-pull key, stock, coupler body, joint mechanism and first connecting rod. Wherein, the push-pull key is connected on the handle in a sliding way; the long rod is connected with one end of the handle; the joint mechanism comprises a first joint and a second joint, the first joint is connected to one end, far away from the handle, of the long rod, one end of the second joint is connected with the hook body, and the other end of the second joint is rotatably connected with one end, far away from the long rod, of the first joint; the first connecting rod is connected inside the handle, the long rod and the first joint in a sliding manner, one end of the first connecting rod is connected with the push-pull key, and the other end of the first connecting rod is rotationally connected with the second joint; the push-pull key is suitable for driving the first connecting rod to move along the length direction of the long rod, and then drives the second joint to rotate around the first joint.

When using, slide along the handle through the push-and-pull key that promotes on the handle, and then drive the length direction motion of first connecting rod along the stock, the first connecting rod of motion drives the second joint and rotates around first joint, finally realize the coupler body and follow the length direction's of stock rotation, when having certain contained angle between coupler body and the stock, the stock can not block the operating plane of coupler body, guarantee that operator's the field of vision is clear, the operator of being convenient for observes, and simultaneously, the operator also can freely adjust the rotation angle of coupler body according to the operation needs.

2. The utility model provides an electric hook, first joint rotate with the second joint through first pivot to be connected, and first connecting rod passes through the second pivot to be connected with the second joint rotation, first pivot and second pivot dislocation set for the second joint can rotate around first joint under the drive of first connecting rod, through setting up first pivot and second pivot, turns into the linear motion of first connecting rod the rotary motion of second joint.

3. The utility model provides an electric hook, joint mechanism still include third joint and second connecting rod. The third joint is arranged between the second joint and the hook body and is rotationally connected with the second joint; one end of the second connecting rod is rotatably connected to the first joint, and the other end of the second connecting rod is rotatably connected to the third joint and is suitable for driving the third joint to rotate around the second joint.

Through setting up the second connecting rod, realized when the second joint takes place to rotate around first joint, the second connecting rod drives the third joint and takes place to rotate around the second joint, because the equal rotatable certain angle of second joint and third joint, realize the gentle transition of coupler body and stock angle, avoided only a joint to carry out the turn problem of wide angle, consequently the elastic deformation that the insulating skin of the outside parcel of joint mechanism needs when the joint takes place to rotate is less relatively, difficult damage.

4. The utility model provides an electric hook, third joint rotate with the second joint through the third pivot to be connected, third pivot and first pivot parallel arrangement, and the plane at the axis place of third pivot and first pivot is crossing with the second connecting rod.

The third rotating shaft and the first rotating shaft are arranged in parallel, so that the interference on the rotation of the second joint is prevented when the third joint rotates around the second joint; because the plane of the axis of the third rotating shaft and the first rotating shaft is intersected with the second connecting rod, the second connecting rod can drive the third joint to rotate and can control the rotating angle of the third joint at the same time, and the third joint is prevented from swinging to further influence the operation.

5. The utility model provides an electric hook corresponds on first joint, second joint and the third joint and is equipped with the holding tank, and second connecting rod swing joint is in the holding tank, and then avoids increasing the width of joint mechanism because the second connecting rod, increases the width requirement of operation passageway, simultaneously, also can avoid joint mechanism when the motion, organizes around convex second connecting rod fish tail.

6. The utility model provides an electric hook, handle cavity set up, and the handle includes keyway and a plurality of first clamping part. The key groove is a through groove formed in the side part of the handle, and the push-pull key is arranged in the key groove in a sliding mode; the plurality of first locking parts are distributed on the inner wall of the handle or the key groove along the sliding direction of the push-pull key. The push-pull key further includes a second locking portion having a plurality of locking positions to be engaged with different first locking portions and an unlocking position to be disengaged from the first locking portions.

Through set up a plurality of first clamping parts on handle or keyway, set up the second on the push-and-pull key and block the portion, promote the push-and-pull key and make the push-and-pull key slide in the keyway, and then drive the second on the push-and-pull key and block the portion cooperation with the first clamping part of difference, realize the locking of push-and-pull key in different positions to fix the angle at the difference with the coupler body and stock, easy operation, and can realize one-hand operation.

7. The utility model provides an electric hook, push-and-pull key still include the casing, press splenium and a pair of extension board. Wherein, the shell is provided with a through groove along the sliding direction of the push-pull key; the pressing part comprises a connecting end and a movable end, the connecting end is connected with the groove wall at one end of the through groove, the movable end extends along the sliding direction of the push-pull key and is movably arranged at the other end of the through groove, and the second clamping part is connected to the bottom of the movable end; the pair of extension plates are relatively connected to the bottom of the movable end, and two ends of the second clamping part are respectively connected with one ends, far away from the movable end, of the pair of extension plates. The handle also comprises a clamping plate which is fixed in the handle and is positioned at the bottom of the key groove; the pair of extension plates respectively extend into the handle through two sides of the clamping plate, and a plurality of first clamping parts are arranged at the bottom of the clamping plate.

The movable end of the pressing part on the push-pull key is pressed into the key groove, the pair of extension plates connected to the bottom of the movable end moves downwards along with the movable end, the second clamping part at the bottom of the extension plate moves downwards along with the extension plate and further leaves the first clamping part on the clamping plate to reach an unlocking position, at the moment, the push-pull key in the key groove is pushed forwards or backwards, the sliding of the push-pull key can be realized, the first connecting rod moves forwards or backwards along with the movement of the push-pull key to drive the second joint and the third joint to rotate, the rotation of the hook body is realized, after the rotating angle required by operation is met, the pressing part on the push-pull key is loosened, the second clamping part on the extension plate automatically bounces up and is clamped with the corresponding first clamping part on the clamping plate to enter the corresponding locking position, the self-locking of the push-pull key is realized, the hook body and the long rod are fixed at the corresponding angle, and the operation of adjusting the angle of the hook body by the push-pull key is completed.

8. The utility model provides an electric hook, the both ends of second clamping part rotate with a pair of extension board respectively and are connected, when pressing the splenium on pressing the push-and-pull key, because the both ends of second clamping part rotate with the extension board to be connected, so first clamping part roll can be followed to the second clamping part, get into next locking position under the direction of first clamping part, can be laborsaving.

9. The utility model provides an electric hook, push-and-pull key still include the driving plate, and separate the setting with a pair of extension board, and the driving plate is articulated with casing, first connecting rod and handle in proper order, and is equipped with the slot hole on the driving plate, and the driving plate passes through the slot hole and the casing slides articulatedly.

The movement of the push-pull key is transmitted to the first connecting rod through the transmission plate, the push-pull key is pushed to further control the moving distance of the first connecting rod, and the control of the internal elements of the handle is transferred to the outside, so that the operation is facilitated. The long hole provides a moving space for the rotation of the transmission plate, so that the push-pull key can be always kept at the same height when the transmission plate rotates, and the influence of the transmission plate on the motion track of the push-pull key is avoided.

10. The utility model provides an electric hook, which also comprises a rotating wheel, one end of the rotating wheel is fixedly connected with one end of the long rod close to the handle, and the other end is rotatably connected with one end of the handle; the push-pull key further comprises a movable block, the movable block is in threaded connection with the periphery of one end of the first connecting rod, and the movable block is hinged to the transmission plate.

The long rod is driven to rotate along the circumferential direction through the rotating wheel, the long rod drives the joint mechanism to rotate, the hook body is further driven to rotate along the rotating wheel, and compared with the situation that an operator manually rotates the handle to drive the hook body to rotate, when the rotating wheel controls the hook body to rotate relative to the handle, the rotating precision is easier to control.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic structural diagram of an electric hook provided by the present invention.

Fig. 2 shows a partial cross-sectional view of an electrical hook provided by the present invention.

Fig. 3 shows a first state diagram of the joint mechanism provided by the present invention.

Fig. 4 shows a cross-sectional view of the joint mechanism provided by the present invention.

Fig. 5 shows a second state diagram of the joint mechanism provided by the present invention.

Fig. 6 shows a partial view of the joint mechanism provided by the present invention.

Fig. 7 shows a cross-sectional view of a handle provided by the present invention.

Fig. 8 shows a first partial view of a handle provided by the present invention.

Fig. 9 shows a second partial view of the handle provided by the present invention.

Fig. 10 illustrates a third partial view of the handle provided by the present invention.

Fig. 11 shows a cross-sectional view of a push-pull key provided by the present invention.

Description of reference numerals:

1. a handle; 11. a push-pull key; 111. a second locking part; 112. a housing; 1121. a through groove; 113. a pressing part; 1131. a connecting end; 1132. a movable end; 114. an extension plate; 115. a drive plate; 1151. a long hole; 116. a movable block; 12. a keyway; 13. a first locking part; 14. a locking plate; 2. a long rod; 3. a hook body; 4. a joint mechanism; 41. a first joint; 42. a second joint; 421. a first rotating shaft; 422. a second rotating shaft; 423. a third rotating shaft; 43. a third joint; 5. a first link; 6. a second link; 7. accommodating grooves; 8. and (4) rotating wheels.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

The utility model provides an electric hook, as shown in fig. 1 to 11, comprising a handle 1, a push-pull key 11, a long rod 2, a hook body 3, a joint mechanism 4 and a first connecting rod 5. The shape and material of the handle 1 are not further limited, and the handle is suitable for being held by hand. The push-pull key 11 is connected to the handle 1 in a sliding manner. The long rod 2 is connected to one end of the handle 1, and is sufficient to accommodate the first connecting rod 5. The shape of the hook body 3 is not further limited, and may be L-shaped, so that the hook body 3 is relatively blunt and is not easy to scratch the tissue, and the sticky tissue can be separated. Usually, the angle of rotation of the hook body 3 in the bending direction of the hook body 3 is less than or equal to 90 °, and the angle of rotation of the hook body 3 in the direction opposite to the bending direction of the hook body 3 is less than or equal to 20 °.

The joint mechanism 4 comprises a first joint 41 and a second joint 42, the first joint 41 is connected to one end of the long rod 2 far away from the handle 1, one end of the second joint 42 is connected with the hook body 3, and the other end of the second joint is rotatably connected with one end of the first joint 41 far away from the long rod 2.

The first connecting rod 5 is slidably connected inside the handle 1, the long rod 2 and the first joint 41, one end of the first connecting rod 5 is connected with the push-pull key 11, and the other end is rotatably connected with the second joint 42.

The push-pull key 11 is adapted to drive the first connecting rod 5 to move along the length direction of the long rod 2, so as to drive the second joint 42 to rotate around the first joint 41.

When the surgical hook is used, the push-pull key 11 on the handle 1 is pushed to slide along the handle 1, so that the first connecting rod 5 is driven to move along the length direction of the long rod 2, the moving first connecting rod 5 drives the second joint 42 to rotate around the first joint 41, and finally the hook body 3 rotates along the length direction of the long rod 2, when a certain included angle is formed between the hook body 3 and the long rod 2, the long rod 2 cannot block an operation plane of the hook body 3, so that the visual field of an operator is clear, the observation of the operator is facilitated, and meanwhile, the operator can freely adjust the rotation angle of the hook body 3 according to the surgical needs.

Optionally, the first joint 41 is rotatably connected to the second joint 42 through a first rotating shaft 421, the first connecting rod 5 is rotatably connected to the second joint 42 through a second rotating shaft 422, and the first rotating shaft 421 and the second rotating shaft 422 are arranged in a staggered manner, so that the second joint 42 can rotate around the first joint 41 under the driving of the first connecting rod 5, and by arranging the first rotating shaft 421 and the second rotating shaft 422, the linear motion of the first connecting rod 5 is converted into the rotational motion of the second joint 42.

Optionally, the joint mechanism 4 further includes a third joint 43 and a second link 6. The third joint 43 is arranged between the second joint 42 and the hook body 3, and the third joint 43 is rotatably connected with the second joint 42. One end of the second connecting rod 6 is rotatably connected to the first joint 41, and the other end thereof is rotatably connected to the third joint 43, so as to drive the third joint 43 to rotate around the second joint 42. Through setting up second connecting rod 6 has realized working as second joint 42 centers on when first joint 41 takes place to rotate, second connecting rod 6 drives third joint 43 centers on second joint 42 takes place to rotate, because second joint 42 with third joint 43 all can rotate certain angle, realizes the mild transition of

coupler body

3 and 2 angles of stock, has avoided only a joint to carry out the turn problem of wide-angle, and consequently the elastic deformation that the insulating skin of the outside parcel of joint mechanism 4 needs when the joint takes place to rotate is less relatively, difficult damage.

Optionally, the third joint 43 is rotatably connected to the second joint 42 through a third rotating shaft 423, the third rotating shaft 423 is parallel to the first rotating shaft 421, and a plane where the axes of the third rotating shaft 423 and the first rotating shaft 421 are located intersects with the second connecting rod 6. The third rotating shaft 423 and the first rotating shaft 421 are arranged in parallel, so that interference with rotation of the second joint 42 when the third joint 43 rotates around the second joint 42 is prevented; because the plane where the axes of the third rotating shaft 423 and the first rotating shaft 421 are located intersects with the second connecting rod 6, the second connecting rod 6 can drive the third joint 43 to rotate and control the rotation angle of the third joint 43, so as to prevent the third joint 43 from swinging and further affecting the operation.

Optionally, as shown in fig. 3 to 5, a first protrusion and a second protrusion are respectively disposed at two ends of the second joint 42, a first groove is disposed on the first joint 41, a second groove is disposed on the third joint 43, the first protrusion is rotatably connected in the first groove through the first rotating shaft 421, and the second protrusion is rotatably connected in the second groove through the third rotating shaft 423. Through the matching of the first projection and the first groove, and the second projection and the second groove, the second joint 42 avoids interfering with the first joint 41 when rotating, and the third joint 43 avoids interfering with the second joint 42 when rotating. Further, be equipped with the third recess in the first lug, 5 one end of first connecting rod is equipped with the crotch body, the crotch body articulates in the third recess, preferably, the top of crotch body with the third recess butt makes first connecting rod 5 with second joint 42's connection is more firm, and transmission loss is littleer.

Optionally, the first joint 41, the second joint 42, and the third joint 43 may be cylindrical, so as to avoid a sharp design, and prevent tissue from being scratched during movement of the joint mechanism 4.

Optionally, the first joint 41, the second joint 42, and the third joint 43 are correspondingly provided with an accommodating groove 7, and the second connecting rod 6 is movably connected in the accommodating groove 7. Therefore, the situation that the width of the joint mechanism 4 is increased due to the second connecting rod 6 is avoided, the width requirement of an operation channel is increased, and meanwhile, the situation that the protruding second connecting rod 6 scratches surrounding tissues when the joint mechanism 4 moves is also avoided.

Optionally, the electric hook provided in this embodiment further includes a hook seat, and is connected between the hook body 3 and the third joint 43, and the hook seat may be tapered, so that the third joint 43 and the hook body 3 have different widths of transition.

Alternatively, the handle 1 is hollow, and the handle 1 includes a keyway 12 and a plurality of first detents 13. The key groove 12 is a through groove formed in the side portion of the handle 1, and the push-pull key 11 is slidably disposed in the key groove 12. The first locking portions 13 are distributed on the inner wall of the handle 1 or on the key groove 12 in the sliding direction of the push-pull key 11. The push-pull key 11 further includes a second locking portion 111, and the second locking portion 111 has a plurality of locking positions in which it is engaged with different ones of the first locking portions 13, and an unlocking position in which it is separated from the first locking portions 13. The plurality of first clamping parts 13 are arranged on the handle 1 or the key groove 12, the second clamping part 111 is arranged on the push-pull key 11, the push-pull key 11 is pushed to enable the push-pull key 11 to slide in the key groove 12, and then the second clamping part 111 on the push-pull key 11 is driven to be matched with different first clamping parts 13, so that the push-pull key 11 is locked at different positions, the hook body 3 and the long rod 2 are fixed at different angles, the operation is simple, and the one-hand operation can be realized.

Optionally, the push-pull key 11 further includes a housing 112, a pressing portion 113, and a pair of extension plates 114. The housing 112 is provided with a through slot 1121 along the sliding direction of the push-pull key 11. The pressing portion 113 includes a connecting end 1131 and a movable end 1132, the connecting end 1131 is connected to a groove wall of one end of the through groove 1121, the movable end 1132 extends along a sliding direction of the push-pull key 11 and is movably disposed at the other end of the through groove 1121, and the second clamping portion 111 is connected to a bottom of the movable end 1132. The pair of extension plates 114 are connected to the bottom of the movable end 1132, and both ends of the second locking portion 111 are connected to ends of the pair of extension plates 114 far from the movable end 1132, respectively. The handle 1 further comprises a locking plate 14, and the locking plate 14 is fixed in the handle 1 and is positioned at the bottom of the key slot 12; the pair of extension plates 114 extend into the handle 1 through both sides of the locking plate 14, and the bottom of the locking plate 14 is provided with a plurality of first locking parts 13. Further, as an embodiment, the movable end 1132 of the pressing portion 113 may have anti-slip threads, so as to facilitate pushing the push-pull key; in another embodiment, the connecting end 1131 of the pressing portion 113 is provided with a protrusion, so that after the operator presses the movable end 1132, the thumb abuts against the protrusion to push the push-pull key 11. Specifically, the first locking portion 13 may be a tooth, and the second locking portion 111 may be a round bar, and when the second locking portion 111 is in the locking position, it is locked at a tooth space of the tooth, the width of the tooth space being equal to the diameter of the round bar.

Furthermore, the two ends of the housing 112 are provided with extension sections, and the extension sections are clamped between the locking plate 14 and the handle 1 to assist in limiting the housing 112, so as to prevent the housing 112 from being separated from the key slot 12.

The movable end 1132 of the pressing part 113 on the push-pull key 11 is pressed into the key slot 12, the pair of extension plates 114 connected to the bottom of the movable end 1132 moves downward, the second clamping part 111 at the bottom of the extension plate 114 moves downward along with the extension plate 114, and further moves away from the first clamping part 13 on the clamping plate 14 to reach an unlocking position, at this time, the push-pull key 11 in the key slot 12 is pushed forward or backward, so that the push-pull key 11 can slide, the first connecting rod 5 moves forward or backward along with the movement of the push-pull key 11 to drive the second joint 42 and the third joint 43 to rotate, so that the hook body 3 rotates, after the rotation angle required by operation is met, the pressing part 113 on the push-pull key 11 is released, the second clamping part 111 on the extension plate 114 automatically bounces up to be clamped with the corresponding first clamping part 13 on the clamping plate 14, so as to enter a corresponding clamping position, so that the push-pull key 11 is self-locked, the hook body and the long rod 11 are fixed at the corresponding angle, and the long rod 11 is adjusted. It should be noted that, the direction of movement of the first link 5 toward the second joint 42 is referred to herein as forward, and the direction of movement of the first link 5 away from the second joint 42 is referred to herein as backward.

Alternatively, both ends of the second locking portion 111 are rotatably connected to the pair of extension plates 114, respectively. When the pressing part 113 of the push-pull key 11 is pressed, both ends of the second locking part 111 are rotatably connected to the extension plate 114, so that the second locking part 111 can roll along the first locking part 13, and can enter the next locking position under the guidance of the first locking part 13, thereby saving labor.

Optionally, as shown in fig. 10, the push-pull key 11 further includes a transmission plate 115 disposed at an interval from the pair of extension plates 114, the transmission plate 115 is sequentially hinged to the housing 112, the first connecting rod 5 and the handle 1, a long hole 1151 is disposed on the transmission plate 115, and the transmission plate 115 is slidably hinged to the housing 112 through the long hole 1151. The movement of the push-pull key 11 is transmitted to the first connecting rod 5 through the transmission plate 115, so that the push-pull key 11 is pushed to further control the moving distance of the first connecting rod 5, and the control of the internal elements of the handle 1 is transferred to the outside, thereby facilitating the operation. The long hole 1151 provides a moving space for the rotation of the transmission plate 115, so that the push-pull key 11 can be always kept at the same height when the transmission plate 115 rotates, and the influence of the transmission plate 115 on the movement track of the push-pull key 11 is avoided. Further, the driving plates 115 have a pair, respectively disposed on both sides of the locking plate 14, to reinforce the connection.

Optionally, the electric hook provided in this embodiment further includes a rotating wheel 8, one end of the rotating wheel 8 is fixedly connected to one end of the long rod 2 close to the handle 1, and the other end is rotatably connected to one end of the handle 1; the push-pull key 11 further comprises a movable block 116, the movable block 116 is in threaded connection with the periphery of one end of the first connecting rod 5 through an adjusting nut, and the movable block 116 is hinged to the transmission plate 115. Through runner 8 drives 2 are along circumferential direction, 2 drive of stock link mechanism 4 rotate, and then realize coupler body 3 is followed runner 8 rotates, with operator manual rotation 1 drive 3 of coupler body rotate and compare, when 8 relative handle 1 of runner control coupler body 3 rotated, the rotation precision was controlled more easily. Furthermore, scales can be marked on the rotating wheel 8, and each scale corresponds to the rotating angle of the hook body 3, so that the rotating precision of the hook body 3 can be controlled conveniently. The shape of the runner 8 is not further limited herein, and may be a cone or a cylinder.

Optionally, a wire is arranged at one end of the first connecting rod 5 close to the movable block 116, and the wire power supply is connected to supply power to the electric hook, so that the hook body 3 can generate high-frequency and high-voltage current to heat the tissue, and the tissue is separated and coagulated, thereby achieving the cutting and hemostatic effects.

The working principle is as follows:

pressing the movable end 1132 of the pressing portion 113 to drive the second locking portion 111 on the extension plate 114 to leave the current locking position, and then pushing the push-pull key 11 forward or backward, the transmission plate 115 transmits the motion of the push-pull key 11 to the first link 5, the first link 5 moves forward or backward along with the push-pull key 11, and then the first link 5 drives the second joint 42 to rotate around the first joint 41, the second link 6 drives the third joint 43 to rotate around the second joint 42, and finally the hook body 3 rotates relative to the long rod 2, when the rotation angle of the hook body 3 meets the operation requirement, the movable end 1132 is released, so that the second locking portion 111 automatically pops up, and the corresponding first locking portion 13 on the locking plate 14 is locked, and the self-locking of the push-pull key 11 is realized. When the hook body 3 needs to rotate along the circumferential direction of the long rod 2, the angle of the rotating wheel 8 is adjusted.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. An electrical hook, comprising:

a handle (1);

a push-pull key (11) which is connected to the handle (1) in a sliding manner;

the long rod (2) is connected to one end of the handle (1);

a hook body (3);

the joint mechanism (4) comprises a first joint (41) and a second joint (42), the first joint (41) is connected to one end, far away from the handle (1), of the long rod (2), one end of the second joint (42) is connected with the hook body (3), and the other end of the second joint (42) is rotatably connected with one end, far away from the long rod (2), of the first joint (41);

the first connecting rod (5) is connected to the inside of the handle (1), the long rod (2) and the first joint (41) in a sliding mode, one end of the first connecting rod (5) is connected with the push-pull key (11), and the other end of the first connecting rod is connected with the second joint (42) in a rotating mode;

the push-pull key (11) is suitable for driving the first connecting rod (5) to move along the length direction of the long rod (2), and further driving the second joint (42) to rotate around the first joint (41).

2. The electric hook according to claim 1, characterized in that the first joint (41) is rotatably connected with the second joint (42) through a first rotating shaft (421), the first connecting rod (5) is rotatably connected with the second joint (42) through a second rotating shaft (422), and the first rotating shaft (421) and the second rotating shaft (422) are arranged in a staggered manner.

3. Electric hook according to claim 2, characterized in that the articulation mechanism (4) further comprises:

a third joint (43) arranged between the second joint (42) and the hook body (3), wherein the third joint (43) is rotationally connected with the second joint (42);

and one end of the second connecting rod (6) is rotatably connected to the first joint (41), and the other end of the second connecting rod is rotatably connected to the third joint (43) and is suitable for driving the third joint (43) to rotate around the second joint (42).

4. The electric hook according to claim 3, characterized in that the third joint (43) is rotatably connected to the second joint (42) via a third rotating shaft (423), the third rotating shaft (423) is arranged parallel to the first rotating shaft (421), and a plane in which the axes of the third rotating shaft (423) and the first rotating shaft (421) are located intersects the second connecting rod (6).

5. An electric hook according to claim 3, characterized in that the first joint (41), the second joint (42) and the third joint (43) are correspondingly provided with a receiving groove (7), and the second connecting rod (6) is movably connected in the receiving groove (7).

6. An electric hook according to any of claims 1-5, characterized in that the handle (1) is arranged hollow, the handle (1) comprising:

the key groove (12) is a through groove formed in the side part of the handle (1), and the push-pull key (11) is arranged in the key groove (12) in a sliding mode;

a plurality of first locking parts (13) distributed on the inner wall of the handle (1) or on the key groove (12) along the sliding direction of the push-pull key (11);

the push-pull key (11) includes a second locking portion (111), and the second locking portion (111) has a plurality of locking positions that are engaged with different first locking portions (13) and an unlocking position that is separated from the first locking portions (13).

7. An electric hook according to claim 6, characterized in that said push-pull key (11) further comprises:

a housing (112) provided with a through groove (1121) along the sliding direction of the push-pull key (11);

the pressing part (113) comprises a connecting end (1131) and a movable end (1132), the connecting end (1131) is connected with the groove wall of one end of the through groove (1121), the movable end (1132) extends along the sliding direction of the push-pull key (11) and is movably arranged at the other end of the through groove (1121), and the second clamping part (111) is connected to the bottom of the movable end (1132);

a pair of extension plates (114) connected to the bottom of the movable end (1132) in an opposing manner, and both ends of the second locking portion (111) are connected to ends of the pair of extension plates (114) away from the movable end (1132), respectively;

the handle (1) further comprises a clamping plate (14), and the clamping plate (14) is fixed in the handle (1) and is positioned at the bottom of the key groove (12); the pair of extension plates (114) respectively extend into the handle (1) through two sides of the clamping plate (14), and a plurality of first clamping parts (13) are arranged at the bottom of the clamping plate (14).

8. The electric hook according to claim 7, wherein both ends of the second locking portion (111) are rotatably connected to a pair of the extension plates (114), respectively.

9. The electric hook according to claim 7, wherein the push-pull key (11) further comprises a transmission plate (115) spaced apart from the pair of extension plates (114), the transmission plate (115) is sequentially hinged to the housing (112), the first link (5) and the handle (1), and a long hole (1151) is formed in the transmission plate (115), and the transmission plate (115) is slidably hinged to the housing (112) through the long hole (1151).

10. The electric hook according to claim 9, characterized in that it further comprises a rotating wheel (8), one end of the rotating wheel (8) is fixedly connected with one end of the long rod (2) close to the handle (1), and the other end is rotatably connected with one end of the handle (1); the push-pull key (11) further comprises a movable block (116), the movable block (116) is in threaded connection with the periphery of one end of the first connecting rod (5), and the movable block (116) is hinged to the transmission plate (115).