CN111671497A

CN111671497A - Medical planing device

Info

Publication number: CN111671497A
Application number: CN202010451431.5A
Authority: CN
Inventors: 史春宝; 李红霞; 王士刚
Original assignee: Beijing Chunlizhengda Medical Instruments Co Ltd
Current assignee: Beijing Chunlizhengda Medical Instruments Co Ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-09-18

Abstract

The invention relates to a medical planing device, which comprises an inner cutter head and an outer cutter head for planing soft tissues, wherein the inner cutter head and the outer cutter head are respectively provided with an inner connecting rod and an outer connecting rod, the outer connecting rod is coaxially sleeved on the inner connecting rod, the outer connecting rod is provided with a motor component for driving the inner connecting rod to rotate around the axis of the outer connecting rod, the end part of the inner connecting rod, which is back to the inner cutter head, is fixedly connected with a holding component, the end surface of the inner cutter head, which is right opposite to the holding component, is fixedly connected with a ring fastener, the end part of the motor component, which is back to the outer cutter head, is provided with a mounting groove for accommodating one end of the holding component, the side wall of the mounting groove is provided with a clamping groove matched with the ring fastener. The invention has the effect of making the operation process more stable.

Description

Medical planing device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical planer.

Background

At present, the disposable planing device is a common surgical tool in arthroscopic surgery and is used for planing human tissues.

In the prior art, a chinese utility model patent document with an authorization publication number CN201139607 discloses a medical joint planer for cutting and repairing diseased joint tissues. The suction pipe is detachably connected with a suction connecting pipe outside the main body frame.

When the medical joint planer for cutting and repairing the lesion joint tissue is used, the inner tube with the cutter head is inserted into the outer tube with the cutter head, as in the conventional prior art. The above-mentioned prior art solution therefore has the following drawbacks: the inner and outer planing heads are easy to separate in the matching process, so that the inner pipe planing head and the outer pipe planing head are not beneficial to installation of users, and the operation process becomes more complicated.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the medical planing device which can save the operation time and ensure that the operation process is more stable.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a medical planing ware, is equipped with interconnection pole and outer connecting rod on interior tool bit and the outer tool bit respectively including the interior tool bit and the outer tool bit that are used for planing the soft tissue, and outer connecting rod coaxial line ground cover is located on the interconnection pole, is equipped with on the outer connecting rod to be used for driving the interconnection and connects pole around its self axis pivoted motor element, the interconnection connects the tip fixedly connected with of pole interior tool bit dorsad and grips the subassembly, grips the just terminal surface fixedly connected with latch closure of tool bit in the subassembly, and the mounting groove that is used for holding and grips subassembly one end is offered to the tip of motor element outside the head of tool bit dorsad, offers on the lateral wall of mounting groove with latch closure complex draw-in groove, the latch closure joint when the draw-in groove is inside, the.

Through adopting the technical scheme, in the use, inside inserting the outer joint pole with the interconnection pole, and make the latch closure be located inside the mounting groove, make the knot claw lock on the latch closure inside the draw-in groove, staff is when using like this, only need the start motor subassembly drive interconnection pole to rotate, just can dig human tissue, simultaneously because the setting of latch closure and draw-in groove, can not be easy the disconnection between interconnection pole and the outer joint pole, staff can be used for the operation with more energy, do not need iterative dismouting, make the operation process go on more stable, and the efficiency is improved.

The present invention in a preferred example may be further configured to: the holding assembly comprises a limiting block and a handle, the limiting block is fixedly arranged at the end part of the inner connecting rod, the handle is fixedly arranged at the end part of the fixing block, a convex edge is arranged on the limiting block, and the position of the convex edge is in buckle-claw position correspondence.

Through adopting above-mentioned technical scheme, the setting of chimb can prevent to detain the claw on the latch closure and take place wide-angle the buckling, can reduce promptly the operation in-process because the too big possibility that leads to the latch closure to break away from with mounting groove and draw-in groove of latch closure atress, has further improved job stabilization nature.

The present invention in a preferred example may be further configured to: the end part of the handle, which is back to the inner cutter head, is rotatably connected with a handheld part, and the rotating axis of the handheld part is collinear with the rotating axis of the inner connecting rod.

Through adopting above-mentioned technical scheme, because handle and internal connecting rod rotate together in operation process, so through setting up the handheld portion of being connected with the handle rotation can be convenient for the staff and grip at operation in-process, and can not produce the hindrance to the rotation of internal connecting rod, the staff application of force of being convenient for.

The present invention in a preferred example may be further configured to: the end part of the handle, which is back to the inner cutter head, is fixedly provided with a connecting block positioned inside the handheld part, and the connecting block is clamped with the handheld part.

Through adopting above-mentioned technical scheme, when making connecting block and connecting block joint, make to rotate between handheld portion and the handle and be connected, can make and stably connect between handheld portion and the handle, improved job stabilization nature.

The present invention in a preferred example may be further configured to: the handheld portion is internally provided with an elastic piece for driving the handheld portion to move towards the direction back to the connecting block.

Through adopting above-mentioned technical scheme, the setting of elastic component can make to possess the activity surplus between handheld portion and the connecting block, and the staff of also being convenient for slowly the application of force when planing human tissue for the staff can plane the human body subassembly application of force more accurately.

The present invention in a preferred example may be further configured to: the elastic piece comprises a spring placed inside the handheld portion, and a clamping plate used for limiting the spring to escape from the handheld portion is arranged on the inner wall of the handheld portion.

Through adopting above-mentioned technical scheme, spring simple structure, the source is extensive, and the maintenance of being convenient for, the setting of cardboard can make the spring stable be connected with handheld portion and connecting block simultaneously, has further improved job stabilization nature.

The present invention in a preferred example may be further configured to: the cardboard has a plurality ofly and along circumference evenly distributed, and on the cardboard was located to the pot head of spring, the other end butt was on the terminal surface of connecting block.

Through adopting above-mentioned technical scheme, the setting up of a plurality of cardboard makes the spring can be more stable be located handheld portion inside to order about the spring compression when the user is to handheld portion application of force, the more accurate mastering power of convenient to use person is said.

The present invention in a preferred example may be further configured to: the connecting block is located and sets firmly the guide body on the inside terminal surface of handheld portion, and the spring housing is located on the guide body.

Through adopting above-mentioned technical scheme, the setting of guide body can make the position of spring remain stable, reduces the spring skew and leads to being difficult to exert the possibility of stabilizing the support to handheld portion, has further improved job stabilization nature.

The present invention in a preferred example may be further configured to: the handle is provided with a hand-held hole penetrating through the handle.

Through adopting above-mentioned technical scheme, the design in handheld hole can the person of facilitating the use installation or dismantle the in-connection pole for use is more convenient.

The present invention in a preferred example may be further configured to: the end part of the side wall of the handle is smooth in an inclined plane shape.

Through adopting above-mentioned technical scheme, the design that the inclined plane portion of level and smooth form is clear for the edges and corners can reduce the possibility of handle fish tail staff's hand when connecting the pole rotation along with the interior.

In summary, the invention includes at least one of the following beneficial technical effects:

1. in the use process, the inner connecting rod is inserted into the outer connecting rod, the ring buckle is positioned in the mounting groove, and the buckle claw on the ring buckle is buckled in the clamping groove, so that when a worker uses the tool, the worker can plane human tissues only by starting the motor assembly to drive the inner connecting rod to rotate;

2. the convex edge is arranged to prevent the buckling claws on the ring buckle from being bent at a large angle, so that the possibility that the ring buckle is separated from the mounting groove and the clamping groove due to the overlarge stress of the ring buckle in the operation process can be reduced, and the working stability is further improved.

Drawings

FIG. 1 is an isometric view of the embodiment;

FIG. 2 is a schematic view showing the position of the flange in the embodiment.

In the figure, 1, a motor assembly; 11. an outer connecting rod; 12. an outer cutter head; 13. mounting grooves; 131. a card slot; 2. a gripping assembly; 21. a handle; 22. a limiting block; 23. a hand-held hole; 24. looping; 25. buckling claws; 26. a convex edge; 27. an inner connecting rod; 28. an inner cutter head; 29. an inclined plane part; 3. connecting blocks; 31. a connecting frame; 32. a connecting disc; 33. a guide body; 34. an elastic member; 35. a spring; 36. a hand-held portion; 37. and (4) clamping the board.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the medical planer disclosed by the present invention comprises a motor assembly 1 and an outer connecting rod 11 fixedly connected with the motor assembly 1, wherein the outer connecting rod 11 is in a hollow tubular shape with two ends communicated, one end of the outer connecting rod 11 is fixedly connected with the motor assembly 1, and the other end is fixedly connected with an outer cutter head 12 for planing human tissues. The inside coaxial grafting of outer connecting rod 11 has interior connecting rod 27, and interior connecting rod 27 corresponds tip fixedly connected with outer tool bit 12 and is used for the interior tool bit 28 with outer tool bit 12 cooperation use, and motor element 1 cover is established on interior connecting rod 27, because motor element 1 drive interior connecting rod 27 rotates for ripe prior art in the planer field for medical treatment, and therefore no longer give unnecessary details.

The end portion of the internal connecting rod 27 opposite to the internal tool bit 28 is fixedly connected with the holding assembly 2, the holding assembly 2 comprises a limiting block 22 fixedly arranged on the end portion of the internal connecting rod 27 and a handle 21 fixedly arranged on the limiting block 22, and the handle 21, the limiting block 22 and the internal connecting rod 27 are sequentially distributed along the length direction of the external connecting rod 11. A buckle 24 coaxially arranged with the handle 21 is fixedly arranged on the end surface of the handle opposite to the limiting block 22, and two symmetrically arranged buckle claws 25 are arranged on the buckle 24; offer the mounting groove 13 to its self inside sunken on the terminal surface of outer tool bit 12 of motor element 1 dorsad, offer the draw-in groove 131 of two relative settings on the lateral wall of mounting groove 13, the length direction of the perpendicular to outer connecting rod 11 of the orientation of seting up of draw-in groove 131, during the use staff only need place stopper 22 in inside mounting groove 13, and make the card of detaining claw 25 inside draw-in groove 131 can realize being connected between handle 21 and motor element 1, realize the stable connection between in-connection pole 27 and the outer connecting rod 11 promptly. The limiting block 22 is cylindrical, the limiting block 22 is provided with a convex edge 26, the convex edge 26 in the embodiment is a rubber ring coaxially sleeved on the limiting block 22, and the rubber ring is located in the region before the two ends of the buckling claw 25. In order to facilitate the worker to disassemble and assemble the handle 21, the handle 21 is further provided with a handheld hole 23 penetrating through the handle, and the opening direction of the handheld hole 23 is perpendicular to the length direction of the inner connecting rod 27.

The connecting block 3 is fixedly arranged on the end face, opposite to the connecting block 3, of the handle 21, and the connecting block 3 comprises a connecting frame 31 fixedly arranged on the end face of the handle 21 and a connecting disc 32 fixedly arranged at one end of the connecting frame 31. The length direction of link 31 sets up along the length direction of in-connection pole 27, and link 31 is the stand form that a plurality of crosses overlapping combination become, and this kind of link 31 can also lighten the dead weight under the prerequisite that can play the connection effect equally, also has good bending resistance simultaneously, is applicable to the surgical instruments field that needs the strength. One end of the connecting frame 31 is connected with the end face of the handle 21, the connecting disc 32 is fixedly arranged on the other end face of the connecting frame 31 and is disc-shaped, and the arc-shaped side wall of the connecting disc 32 extends out of the side wall of the connecting frame 31.

The coaxial cover is equipped with handheld portion 36 of pipe shape on the connection pad 32, and handheld portion 36 is just inwards sunken to form the throat to the one end inner wall of link 31 for form the joint structure with connection pad 32, make handheld portion 36 rotate for link 31 simultaneously, set firmly four evenly distributed's cardboard 37 on the other end inner wall, cardboard 37 is to the inside extension of handheld portion 36. The handheld portion 36 is provided with an elastic member 34 inside for driving the handheld portion 36 to move in a direction away from the connection pad 32, the elastic member 34 in this embodiment is a spring 35 with one end fixedly arranged on the connection pad 32, the other end of the spring 35 abuts against a catch plate 37, and the spring 35 is always in a compressed state. The end face of the connecting disc 32 connected with the spring 35 is fixedly provided with a guide body 33, the guide body 33 is used for guiding the spring 35, the spring 35 is sleeved on the guide body 33, the guide body 33 in the embodiment is of a plate-shaped structure, and the side wall of the guide body 33, which is back to the connecting disc 32, is of an arc surface shape and protrudes back to the connecting disc 32.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a medical planer, is including interior tool bit (28) and outer tool bit (12) that are used for planing the soft tissue, is equipped with interconnection pole (27) and outer connecting rod (11) on interior tool bit (28) and the outer tool bit (12) respectively, and outer connecting rod (11) overlap on interior connecting rod (27) are located to the coaxial line, is equipped with on outer connecting rod (11) to be used for driving interconnection pole (27) around its self axis pivoted motor element (1), its characterized in that: the utility model discloses a motor assembly, including interior connecting rod (27), the tip fixedly connected with of interior tool bit (28) dorsad grips subassembly (2), the terminal surface fixedly connected with latch closure (24) of tool bit (28) are just gripped to subassembly (2), mounting groove (13) that are used for holding subassembly (2) one end are offered to the tip of motor element (1) outside tool bit (12) dorsad, offer on the lateral wall of mounting groove (13) with latch closure (24) complex draw-in groove (131), latch closure (24) joint is when draw-in groove (131) are inside, the knot claw (25) part of latch closure (24) exposes in the external world.

2. The medical planer of claim 1 wherein: the holding assembly (2) comprises a limiting block (22) fixedly arranged at the end part of the inner connecting rod (27) and a handle (21) fixedly arranged at the end part of the fixing block, wherein a convex edge (26) is arranged on the limiting block (22), and the position of a fastening claw (25) of a position buckle (24) of the convex edge (26) corresponds to the position of the fastening claw (25).

3. The medical planer of claim 2 wherein: the end part of the handle (21) back to the inner cutter head (28) is rotatably connected with a handheld part (36), and the rotating axis of the handheld part (36) is collinear with the rotating axis of the inner connecting rod (27).

4. The medical planer of claim 3 wherein: the end part of the handle (21), which is back to the inner cutter head (28), is fixedly provided with a connecting block (3) positioned inside the handheld part (36), and the connecting block (3) is clamped with the handheld part (36).

5. The medical planer of claim 4 wherein: an elastic piece (34) for driving the handheld part (36) to move towards the direction back to the connecting block (3) is arranged in the handheld part (36).

6. The medical planer of claim 5 wherein: the elastic piece (34) comprises a spring (35) placed inside the handheld part (36), and a clamping plate (37) used for limiting the spring (35) to escape from the handheld part (36) is arranged on the inner wall of the handheld part (36).

7. The medical planer of claim 6 wherein: cardboard (37) have a plurality ofly and along circumference evenly distributed, on cardboard (37) was located to the one end cover of spring (35), the other end butt is on the terminal surface of connecting block (3).

8. The medical planer of claim 6 wherein: the connecting block (3) is fixedly provided with a guide body (33) on the end surface positioned in the handheld part (36), and the guide body (33) is sleeved with a spring (35).

9. The medical planer of claim 2 wherein: the handle (21) is provided with a hand-held hole (23) which penetrates through the handle.

10. The medical planer of claim 2 wherein: the end part of the side wall of the handle (21) is smooth in an inclined plane shape.