CN115553904A - Orthopedic labor-saving clamping bone forceps - Google Patents

Abstract

The invention relates to a labor-saving clamping bone forceps for orthopedics, comprising a first pliers head, a second pliers head, a first pliers handle, a second pliers handle, a first elastic member and a second elastic member, The first chute and the second chute are respectively opened at the tails of the two pliers heads, the first pliers head and the second pliers head are arranged in parallel, the first pliers handle is fixedly connected with an arc-shaped rod, and the second pliers handle is fixedly connected with a The positioning seat, the arc rod is slidingly connected in the positioning seat, the arc rod is provided with cogs, the positioning seat is connected with the connecting rod in rotation, the connecting rod is coaxially connected with the gear and the ratchet, the gear meshes with the cog, and the positioning The outer wall of the seat is rotatably connected with a panel, which is used to be embedded on the ratchet, and a shrapnel is fixedly connected to the positioning seat. One end of the shrapnel conflicts with the panel and exerts an elastic force on the panel towards the direction of the ratchet, so as to achieve practical lifting. sexual purpose.

Description

A labor-saving clamping bone forceps for orthopedics

technical field

The invention relates to the field of medical instruments, in particular to a labor-saving clamping bone forceps for orthopedics.

Background technique

Orthopedics is the most common department in a hospital, mainly studying bone-related anatomy and diseases.

At present, the Chinese patent with the notification number CN215688357U discloses a bone-holding forceps for orthopedic surgery, which relates to the technical field of medical devices. The bone-holding forceps for orthopedic surgery includes a No. No. 2 pliers handle, No. 2 pliers head and No. 1 pliers head are equipped with a connecting shaft, the upper surface of the No. 2 pliers handle is equipped with an auxiliary block, and the inside of the auxiliary block is installed with a threaded support rod. A threaded block is provided, a labor-saving structure is provided on the inner side of the No. 1 plier handle and No. 2 plier handle, tooth blocks are installed on the inner side of the No. 1 plier head and No. 2 plier head, and a replacement structure is arranged on the outer side of the tooth block.

When using this kind of bone-holding forceps for orthopedic surgery, after the doctor presses the No. 1 pliers handle and the No. 2 pliers handle with one hand, the first pliers head and the second pliers head clamp the bone; To keep the No. 1 forceps handle and the No. 2 forceps handle in place, however, during the operation, the doctor operates both hands at the same time and it is difficult to free the other hand, and a nurse is required to assist, so the practicability is poor.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a labor-saving clamping bone forceps for orthopedics, through the one-way structure and the panel with fingers, the approaching, positioning and separation of the first forceps head and the second forceps head can be realized , greatly improving the practicality.

In order to achieve the above object, the technical solution of the present invention is as follows: a labor-saving clamping bone forceps for orthopedics, comprising a first forceps head, a second forceps head, a first forceps handle, a second forceps handle, a first elastic member and a second forceps Elastic member, the first chute and the second chute are provided at the tails of the first pliers head and the second pliers head respectively, the end of the second pliers handle is hinged to the head of the first pliers head, The first pliers handle is fixedly connected with a first slide bar, the first slide bar is slidably connected in the first chute, and the end of the first pliers handle is hinged to the head of the second pliers head part, the second pliers handle is fixedly connected with a second slide bar, and the second slide bar is slidably connected in the second chute, and the two ends of the first elastic member are respectively connected with the first pliers head, The first pliers handle is connected, and the two ends of the second elastic member are respectively connected with the second pliers head and the second pliers handle, and the first pliers handle and the second pliers handle are hinged by a pin shaft, and the pin shaft Located between the first pliers head and the second pliers head, the first pliers head and the second pliers head are arranged in parallel, the first pliers handle is fixedly connected with an arc-shaped rod, and the second pliers handle The upper part is fixedly connected with a positioning seat, and the arc-shaped rod is slidably connected in the positioning seat. Cogs are provided on the described arc-shaped rod, and a connecting rod is rotatably connected to the described positioning seat. A gear and a ratchet are coaxially fixedly connected, the gear meshes with the cog, and a panel is rotatably connected to the outer wall of the positioning seat, and the panel is used to be embedded on the ratchet, and the positioning seat An elastic piece is fixedly connected to the top, and one end of the elastic piece conflicts with the panel and exerts an elastic force on the panel towards the ratchet.

To achieve the above technical solution, the doctor holds the first forceps handle and the second forceps handle with one hand, the first forceps handle conflicts with the finger, the second forceps handle conflicts with the palm, and exerts pressure on the first forceps handle, and the second slide bar moves along The second chute moves and exerts pressure on the inner wall of the second chute, and the first slide rod moves along the first chute and exerts pressure on the inner wall of the first chute, so that the first pincer head and the second pincer head are parallel At the same time, the arc-shaped rod slides along the positioning seat, the gear rotates due to the cogs, and the ratchet rotates synchronously with the gear. When the handle is used, the elastic force of the first elastic member and the second elastic member exerts a force on the first pliers handle and the second pliers handle in a direction away from each other, so that the panel is embedded in the ratchet to realize the first pliers head and the second pliers handle. The positioning between the two pliers, that is, the positioning between the first pliers and the second pliers, avoids the process of applying force to the first pliers handle and the second pliers handle for a long time, and has a labor-saving effect; A single finger flips the panel to overturn the panel and separate it from the ratchet, then the arc rod can move along the positioning seat due to the elastic force of the first elastic part and the second elastic part, so that the first pliers handle and the second The pliers handle can quickly move away from each other, so that the first pliers and the second pliers move away from each other, so as to realize the steps of approaching, positioning and separating the first pliers and the second pliers with one hand , greatly improving the convenience of operation and achieving the purpose of improving practicability.

As a preferred solution of the present invention, the end of the panel away from the elastic piece is fixedly connected with an extension plate.

To realize the above-mentioned technical solution, when using fingers to drive the panel to turn over through the extension plate, it can be more labor-saving and convenient.

As a preferred solution of the present invention, the first pliers handle is rotatably connected with a knob, the first pliers head is slidably connected with a first clamping seat laterally, and the second pliers head is slidably connected with a For the second clamping seat, the knob is rotated to move the first clamping seat through the fine-tuning mechanism.

To achieve the above technical solution, the knob is turned, and the first clamping seat moves laterally along the first forceps head through the fine-tuning mechanism, and, through the action of friction, the bone drives the second clamping seat to translate synchronously, so as to play a role in operation. During the process, it has the effect of fine-tuning the bone position and improving the practicality in the operation.

As a preferred solution of the present invention, the fine-tuning mechanism includes a rotating shaft, a screw, a transmission belt, a first transmission wheel, a second transmission wheel, and a connecting seat, and the rotating shaft is rotatably connected in the first pliers handle, Both the knob and the first transmission wheel are fixedly connected to the rotating shaft, the screw rod is rotatably connected to the first clamp head, the second transmission wheel is fixed on the screw rod, and the two ends of the transmission belt pass through The first transmission wheel and the second transmission wheel are tensioned, and the connecting seat is threadedly connected with the screw rod and fixedly connected with the first clamping seat.

To achieve the above technical solution, turn the knob, the rotation shaft rotates synchronously with the knob, the rotation shaft drives the first transmission wheel to rotate, the first transmission wheel drives the second transmission wheel to rotate through the transmission belt, the second transmission wheel drives the screw to rotate, and the screw passes through The thread drives the connecting seat to move along the length direction of the screw rod, so that the connecting seat drives the first clamping seat to move synchronously.

As a preferred solution of the present invention, an anti-slip groove is formed on the outer wall of the knob.

Realize above-mentioned technical proposal, be convenient to turn knob.

As a preferred solution of the present invention, a protective pad made of silica gel is fixedly connected to the first clamping seat and the second clamping seat.

The realization of the above-mentioned technical solution increases the frictional force with the bone, and at the same time, due to the soft texture of the silica gel, it is not easy to cause damage to the bone.

By realizing the above technical solution, the bone can be stably clamped from the horizontal and vertical directions.

In summary, the present invention has the following beneficial effects:

1. The doctor holds the first forceps handle and the second forceps handle with one hand, the first forceps handle conflicts with the finger, the second forceps handle conflicts with the palm, exerts pressure on the first forceps handle, and the second slide bar slides along the second The groove moves and exerts pressure on the inner wall of the second chute, and the first slide bar moves along the first chute and exerts pressure on the inner wall of the first chute, so that the first pliers and the second pliers are parallel to each other. Approach to clamp the bone. At the same time, the arc-shaped rod slides along the positioning seat, the gear rotates due to the cog, and the ratchet rotates synchronously with the gear. The panel conflicts with the outer wall of the ratchet. Through the elastic force of the first elastic member and the second elastic member, the first pliers handle and the second pliers handle exert a force in a direction away from each other, so that the panel is embedded in the ratchet to realize the first pliers head and the second pliers head Positioning between the first pliers head and the second pliers head, which avoids the process of applying force to the first pliers handle and the second pliers handle for a long time, and has a labor-saving effect;

Use a single finger to move the panel to overturn the panel and separate it from the ratchet, then the arc rod can be moved along the positioning seat due to the elastic force of the first elastic part and the second elastic part, so that the first pliers handle and the second The two pliers handles can quickly move away from each other, so that the first pliers head and the second pliers head move away from each other, so that the first pliers head and the second pliers head can be approached, positioned, and separated with one hand. steps, greatly improving the convenience of operation and achieving the purpose of improving practicability.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is an enlarged view of A in FIG. 1 .

Fig. 3 is a structural schematic diagram embodying the knob.

FIG. 4 is an enlarged view of B in FIG. 3 .

Fig. 5 is a schematic structural diagram embodying an arc rod.

The corresponding part names indicated by numbers and letters in the figure:

11. The first clamp head; 12. The second clamp head; 13. The first chute; 14. The second chute; 15. The first slide bar; 16. The second slide bar; 21. The first clamp handle; 22 , the second clamp handle; 23, the first elastic part; 24, the second elastic part; 31, the arc rod; 311, the cog; 32, the positioning seat; 33, the connecting rod; 34, the gear; 35, the ratchet; 36 , panel; 37, shrapnel; 38, extension plate; 4, knob; 41, anti-slip groove; 51, first clamping seat; 52, second clamping seat; 6, protective pad; 61, first anti-off Groove; 62, second anti-off groove; 7, fine-tuning mechanism; 71, rotating shaft; 72, screw rod; 73, transmission belt; 74, first transmission wheel; 75, second transmission wheel; 76, connecting seat; 8, Pull rope; 81, connecting shaft; 82, servo motor; 83, PLC controller; 91, first pressure sensor; 92, second pressure sensor.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figures 1 to 5, a labor-saving clamping bone forceps for orthopedics includes a first pliers head 11, a second pliers head 12, a first pliers handle 21, a second pliers handle 22, a first elastic member 23 and The second elastic member 24 . The first elastic member 23 and the second elastic member 24 are springs.

The tails of the first pliers head 11 and the second pliers head 12 are respectively provided with a first chute 13 and a second chute 14 , the length direction of the first chute 13 is parallel to the length direction of the first pliers head 11 . The length direction of the second chute 14 is parallel to the length direction of the second pliers head 12 .

The end of the second pliers handle 22 is hinged to the head (or middle part) of the first pliers head 11 , and the first slide bar 15 is fixedly connected to the first pliers handle 21 . The first sliding rod 15 is slidably connected in the first sliding slot 13 . The end of the first pliers handle 21 is hinged to the head (or middle) of the second pliers head 12 . A second slide bar 16 is fixedly connected to the second clamp handle 22 . The second sliding rod 16 is slidably connected in the second sliding groove 14 .

One end of the first pliers handle 21 near the first pliers head 11 is provided with a first gap (not shown in the accompanying drawings), and the first elastic member 23 is placed in the first notch, and the two ends of the first elastic member 23 are respectively connected to the first gap. The pliers head 11 and the first pliers handle 21 are connected;

One end of the second pincer handle 22 near the second pliers head 12 is provided with a second gap (not shown in the accompanying drawings), and the second elastic member 24 is placed in the second gap, and the two ends of the second elastic member 24 are respectively connected to the second gap. The pliers head 12 and the second pliers handle 22 are connected. The first pliers handle 21 and the second pliers handle 22 are hinged by pin shafts. The pin shaft is located between the first pliers head 11 and the second pliers head 12 . The first pliers 11 and the second pliers 12 are arranged in parallel.

The first pincer handle 21 is fixedly connected with an arc-shaped rod 31, and the end of the arc-shaped rod 31 away from the first pincer handle 21 extends toward the direction close to the second pincer handle 22, and the center of circle of the arc-shaped rod 31 and the axis of the pin shaft The hearts overlap. A positioning seat 32 is fixedly connected to the second pliers handle 22 , and the arc rod 31 is slidably connected in the positioning seat 32 . Cogs 311 are provided on the arc rod 31 , and a plurality of cogs 311 are arranged along the length direction of the arc rod 31 .

A connecting rod 33 is rotatably connected to the positioning seat 32, a gear 34 and a ratchet 35 are coaxially fixedly connected to the connecting rod 33, and the ratchet 35 is located outside the positioning seat 32; the gear 34 is meshed with the cog 311. A panel 36 is rotatably connected to the outer wall of the positioning seat 32 , and the end of the panel 36 is used to be embedded on one end of the ratchet 35 . An elastic piece 37 is fixedly connected to the positioning seat 32 . An end of the elastic piece 37 away from the positioning seat 32 is in contact with the panel 36 and exerts an elastic force on the panel 36 toward the ratchet 35 .

The first pincer handle 21 moves towards the direction close to the second pincer handle 22, and the arc rod 31 moves towards the direction close to the positioning seat 32, and the cog 311 drives the gear 34 to rotate, so that the gear 34 drives the connecting rod 33 to rotate, and the connecting rod 33 The ratchet 35 is driven to rotate, and one end of the panel 36 is in conflict with the outer wall of the ratchet 35, and one end of the panel 36 is driven to deflect toward the direction of the elastic piece 37, and the elastic piece is deformed under force. After the first clamp handle 21 and/or the second clamp handle 22 are loosened, the first clamp handle 21 and the second clamp handle 22 are moved away from each other through the elastic force of the first elastic member 23 and the second elastic member 24 The trend of movement, the panel 36 is embedded in the ratchet 35 under the action of the shrapnel 37 . Realize the positioning of the first pliers 11 and the second pliers 12 .

An extension plate 38 is fixedly connected to an end of the panel 36 away from the elastic piece 37 .

When the doctor is holding (thumb or palm, middle finger, ring finger and little finger) the first forceps handle 21 and the second forceps handle 22, as long as the extension plate 38 is moved with the index finger, the panel 36 is overturned and removed from the ratchet 35. Pulling out means that the first pliers handle 21 and the second pliers handle 22 can move away from each other. This enables one-handed operation.

On the first pliers handle 21, a knob 4 is rotationally connected, and on the side of the first pliers head 11 facing the second pliers handle 22, a first clamping seat 51 is laterally slidably connected; the second pliers head 12 faces the first pliers head 11 One side of the second clamping seat 52 is slidingly connected laterally. The above-mentioned lateral slippage is defined as a direction perpendicular to the clamping direction of the first pliers handle 21 and the second pliers head 12 .

The knob 4 is rotated and the first clamping seat 51 is moved by the fine adjustment mechanism 7 . A protective pad 6 made of silica gel is fixedly connected to the first clamping seat 51 and the second clamping seat 52 .

When the first pliers handle 21 and the second pliers handle 22 approach each other, the first pliers head 11 and the second pliers head 12 clamp the bone, and the material of the protective pad 6 is relatively soft, which improves the protection effect on the bone and can Increase friction. Rotate the knob 4 with the index finger, and make the first clamping seat 51 move laterally through the fine-tuning mechanism 7, so as to fine-tune the left-right position of the bone. In order to adapt to the clinical situation and further enhance the practicality.

A first anti-off groove 61 and a second anti-off groove 62 are provided on the protective pad 6, and the first anti-off groove 61 and the second anti-off groove 62 are vertically arranged.

The aforementioned fine-tuning mechanism 7 includes a rotating shaft 71 , a screw 72 , a transmission belt 73 , a first transmission wheel 74 , a second transmission wheel 75 , and a connecting seat 76 . The rotating shaft 71 is rotatably connected in the first pliers handle 21 , and the knob 4 and the first transmission wheel 74 are both fixedly connected to the rotating shaft 71 and arranged coaxially. The screw rod 72 is rotatably connected to the first pincer head 11 , and the second transmission wheel 75 is fixed on the screw rod 72 and arranged coaxially. Both ends of the transmission belt 73 are tensioned by the first transmission wheel 74 and the second transmission wheel 75 . The first transmission wheel 74 and the second transmission wheel 75 are pulleys, the transmission belt 73 is a belt, and the transmission belt 73 has good elasticity.

The connecting seat 76 is threadedly connected with the screw rod 72 and fixedly connected with the first clamping seat 51 .

When the index finger toggles the knob 4, the rotating shaft 71 drives the first transmission wheel 74 to rotate, and the first transmission wheel 74 drives the second transmission wheel 75 to rotate through the transmission belt 73, and the second transmission wheel 75 drives the screw rod 72 to rotate, and the screw rod 72 The thread drives the connecting seat 76 to move along the length direction of the screw rod 72 , so that the connecting seat 76 drives the first clamping seat 51 to move synchronously.

An anti-slip groove 41 is provided on the outer wall of the knob 4 to facilitate turning the knob 4 .

In this application, one end of the transmission belt 73 is matched with the first transmission wheel 74, and the other end of the transmission belt 73 passes through the first pliers handle 21, the first chute 13, the first pliers head 11 and the second transmission wheel in sequence. Wheel 75 cooperates.

In the prior art, it is necessary for the doctor to hold the rongeur with his hand, and the rongeur is driven by the hand to move, thereby driving the bone clamped by the rongeur to move. This operation has high requirements on the accuracy of the doctor's hand movement distance, and often requires a large incision and a large field of view to achieve bone butt joint.

The bone forceps of the present application are suitable for deep orthopedic surgery, specifically: deep fracture surgery, can realize fracture reduction, and do not need a large incision to butt joint bone. The above-mentioned first clamping seat 51 and second clamping seat 52 can drive the bone to perform fine adjustment. During the above-mentioned fine adjustment process, the rongeur or the hand of the doctor holding the rongeur can be motionless, thus satisfying The needs of deep orthopedic surgery.

In addition, the knob 4 and the extension plate 38 of the present application are both controlled by the index finger in the hand of the human body.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. The utility model provides an orthopedics is with laborsaving centre gripping rongeur, includes first binding clip, second binding clip, first pincers handle, second pincers handle, first elastic component and second elastic component, its characterized in that: the end of the second tong handle is hinged to the head of the second tong head, the second tong handle is fixedly connected with a second sliding rod, the second sliding rod is connected to the second sliding groove in a sliding mode, two ends of the first elastic piece are connected with the first tong head and the first tong handle respectively, two ends of the second elastic piece are connected with the second tong head and the second tong handle respectively, the first tong handle and the second tong handle are hinged through a pin shaft, the pin shaft is located between the first tong head and the second tong head, the first tong head and the second tong head are arranged in parallel, an arc-shaped rod is fixedly connected to the first tong handle, a positioning seat is fixedly connected to the second tong handle, the arc-shaped rod is connected to the positioning seat, the connecting rod is coaxially connected to the positioning seat, the inserting teeth of the connecting rod are coaxially connected to the inserting teeth of the ratchet wheel, the inserting teeth of the ratchet wheel are meshed with the inserting teeth of the ratchet wheel, the connecting rod is used for fixing the ratchet wheel, and the ratchet wheel is connected with the ratchet wheel.

2. The labor-saving bone forceps for orthopedics department use according to claim 1, characterized in that one end of the embedded plate far away from the elastic sheet is fixedly connected with an extension plate.

3. The labor-saving bone forceps for orthopedics department clamping is characterized in that the first forceps handle is connected with a knob in a rotating mode, the first forceps head is connected with the first clamping seat in a transverse sliding mode, the second forceps head is connected with the second clamping seat in a transverse sliding mode, and the knob rotates and enables the first clamping seat to move through the fine adjustment mechanism.

4. The labor-saving bone forceps for orthopedics department clamping is characterized in that the fine adjustment mechanism comprises a rotating shaft, a screw rod, a transmission belt, a first transmission wheel, a second transmission wheel and a connecting seat, the rotating shaft is rotatably connected into the first forceps handle, the knob and the first transmission wheel are fixedly connected with the rotating shaft, the screw rod is rotatably connected onto the first forceps head, the second transmission wheel is fixed onto the screw rod, two ends of the transmission belt are tensioned through the first transmission wheel and the second transmission wheel, and the connecting seat is in threaded connection with the screw rod and is fixedly connected with the first clamping seat.

5. The labor-saving bone forceps for orthopedics use according to claim 4, wherein the outer wall of the knob is provided with an anti-slip groove.

6. The labor-saving bone forceps for orthopedics department according to claim 3, characterized in that the first and second clamping seats are fixedly connected with protective pads made of silica gel.

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