CN215349257U

CN215349257U - Medical spherical grinding head planing tool bit

Info

Publication number: CN215349257U
Application number: CN202120908801.3U
Authority: CN
Inventors: 唐伟; 杨斌; 马宁馨
Original assignee: Beijing Ruilang Taike Medical Device Co ltd
Current assignee: Beijing Ruilang Taike Medical Device Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-31
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a medical spherical grinding head planing tool bit which comprises a tool assembly, wherein a suction window is arranged on the tool assembly, a tool shoe assembly is arranged on one side of the tool assembly, a first sealing ring is arranged on one side, close to the tool assembly, of the tool shoe assembly, an outer tool tube is arranged on one side, far away from the sealing ring, of the tool shoe assembly, an inner tool tube is arranged in the outer tool tube, a plurality of hole clamping devices are arranged on the other side of the inner tool tube, each hole clamping device comprises a groove, and a channel is arranged on one side inside each groove. Has the advantages that: through the design of connecting rod, fixture block, recess, passageway, spout and draw-in groove for the tool bit can form the axiality installation with interior cutter pipe, thereby has greatly reduced the welding degree of difficulty, the better axiality of having guaranteed tool bit and cutter pipe, thereby reduced the risk that corresponds with it in the operation, improve the row in the operation and cut the performance and excision spur and soft tissue that can be accurate.

Description

Medical spherical grinding head planing tool bit

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a medical spherical grinding head planing tool bit.

Background

With the wide development of arthroscopy and endoscopic surgery, the planing power system is also rapidly developed and continuously updated. The modern planing power system is a high-performance universal surgical tool and has the advantages of smooth attraction, convenience in cleaning, quickness in installation, full-waterproof design and the like. The shaver is actually composed of two overlapping sleeves, both of which have windows, and the cutting action is performed at the window of the tip through the fixed outer knife tube and the rotating inner core, and the tissue is sucked into the knife edge, and the debris is sucked out through the suction device, so as to achieve the purpose of cutting.

Among them, the planing tool bits are various in kind, such as a double-sided planing tool, a full-diameter toothed planing tool, a round-head sander, or a drum sander. The coaxiality of the planing tool head and the tool tube has a very important influence on the use of the planing tool. In the prior art, the coaxiality of the tool bit and the tool tube of the planing device is low, so that the planing performance is low in the operation, and the bone spurs and soft tissues cannot be accurately resected.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the related art, the utility model provides a medical spherical grinding head planing tool bit, which aims to overcome the technical problems in the prior related art.

Therefore, the utility model adopts the following specific technical scheme:

a medical spherical grinding head planing tool bit comprises a tool assembly, wherein a suction window is arranged on the tool assembly, a tool shoe assembly is arranged on one side of the tool assembly, a first sealing ring is arranged on one side, close to the tool assembly, of the tool shoe assembly, an outer tool tube is arranged on one side, far away from the first sealing ring, of the tool shoe assembly, an inner tool tube is arranged in the outer tool tube, a plurality of hole clamping devices are arranged on the other side of the inner tool tube, each hole clamping device comprises a groove, a channel is arranged on one side inside the groove, a sliding groove communicated with the channel is arranged on one side of the bottom in the groove, the sliding groove is perpendicular to the channel, a clamping groove is arranged at the top of one side, far away from the channel, of the sliding groove, a spring is arranged at the center of the bottom in the groove, an extrusion plate is arranged at the top of the spring, a connecting pipe is arranged on one side, far away from the tool shoe assembly, of the connecting pipe is provided with a second sealing ring, the middle part of the second sealing ring is provided with a plurality of connecting rods, one ends of the connecting rods are fixedly connected with the side surfaces penetrating through the second sealing ring and the connecting pipes, the other ends of the connecting rods are provided with clamping blocks, the connecting rods drive the clamping blocks to penetrate through the channels into the grooves, then the clamping blocks enter the sliding grooves and are clamped with the clamping grooves in a clamping mode through clockwise rotation, the extrusion plate is extruded with the clamping blocks, and a tool bit is arranged on one side, far away from the second sealing ring, of the connecting pipe.

Preferably, the channel and the sliding groove are both cylindrical structures, and the inner diameters of the channel and the sliding groove are the same.

Preferably, the number of the clamping hole devices, the number of the connecting rods and the number of the clamping blocks are four, and the three are in one-to-one correspondence.

Preferably, the clamping groove is matched with the clamping block, and the clamping groove and the clamping block are both of spherical structures.

Preferably, the spring is a compression spring, and spring washers are arranged at two ends of the spring.

Preferably, the outer diameter of the inner cutter tube is 0.05-0.10 mm smaller than the inner diameter of the outer cutter tube.

Preferably, the cutter head is made of a martensite type stainless steel material, and the inner cutter tube is made of a 304 stainless steel material.

The utility model has the beneficial effects that: through the design of the connecting rod, the clamping block, the groove, the channel, the sliding groove and the clamping groove, the tool bit and the inner cutter tube can be coaxially installed, so that the welding difficulty is greatly reduced, the coaxiality of the tool bit and the cutter tube is better ensured, the corresponding risk in the operation is reduced, the cutting performance in the operation is improved, and the bone spurs and soft tissues can be accurately cut off; through the design of the second sealing ring, the connection between the cutter head and the inner cutter tube is sealed, and liquid leakage cannot occur.

Drawings

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

Fig. 1 is a schematic view of the general structure of a medical spherical grinding head planing tool head according to an embodiment of the present invention;

fig. 2 is a schematic view of the connection structure of the inner cutter tube and the cutter head of the medical spherical grinding head planing cutter head according to the embodiment of the utility model;

fig. 3 is a side view of the inner cutter of the medical spherical grinding head planing tool head according to the embodiment of the utility model;

fig. 4 is a schematic view of the internal structure of a groove of a spherical grinding head planing tool head for medical use according to an embodiment of the present invention.

In the figure:

1. a cutter assembly; 2. an attraction window; 3. a blade shoe assembly; 4. a first sealing ring; 5. an outer cutter tube; 6. an inner cutter tube; 7. a groove; 8. a channel; 9. a chute; 10. a card slot; 11. a spring; 12. a pressing plate; 13. a connecting pipe; 14. a second sealing ring; 15. a connecting rod; 16. a clamping block; 17. a cutter head.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the present invention, there is provided a medical spherical grinding head planing tool head.

In a first embodiment, as shown in fig. 1 to 4, a medical spherical grinding head planing tool bit according to an embodiment of the present invention includes a tool assembly 1, the tool assembly 1 is provided with an attraction window 2, one side of the tool assembly 1 is provided with a tool shoe assembly 3, one side of the tool shoe assembly 3, which is close to the tool assembly 1, is provided with a first sealing ring 4, one side of the tool shoe assembly 3, which is far away from the first sealing ring 4, is provided with an outer tool tube 5, an inner tool tube 6 is arranged in the outer tool tube 5, the other side of the inner tool tube 6 is provided with a plurality of clamping hole devices, each clamping hole device includes a groove 7, one side of the inner portion of the groove 7 is provided with a channel 8, one side of the inner bottom of the groove 7 is provided with a sliding groove 9 connected and communicated with the channel 8, the sliding groove 9 is perpendicular to the channel 8, the top of the sliding groove 9, which is far away from the channel 8, is provided with a clamping groove 10, a spring 11 is arranged at the center of the inner bottom of the groove 7, the top of spring 11 is equipped with stripper plate 12, interior sword pipe 6 is kept away from sword boot assembly 3 one side is equipped with connecting pipe 13, connecting pipe 13 is close to interior sword pipe 6 one side is equipped with sealing washer two 14, the middle part of sealing washer two 14 is equipped with a plurality of connecting rod 15, connecting rod 15 one end with run through sealing washer two 14 with the side of connecting pipe 13 is connected fixedly, the other end of connecting rod 15 is equipped with fixture block 16, connecting rod 15 takes fixture block 16 passes through channel 8 run through to in the recess 7, then through clockwise turning get into in the spout 9 with the draw-in groove 10 joint together, stripper plate 12 with the extrusion of fixture block 16 is in the same place, connecting pipe 13 is kept away from sealing washer two 14 one side is equipped with tool bit 17.

In the second embodiment, the channel 8 and the sliding groove 9 are both cylindrical structures, the inner diameters of the channel 8 and the sliding groove 9 are the same, and the number of the clamping hole devices, the connecting rods 15 and the clamping blocks 16 is four and the three are in one-to-one correspondence. As can be seen from the above design, the latch 16 can smoothly run in the groove 7 due to the design of the channel 8 and the sliding groove 9.

In a third embodiment, the locking groove 10 is matched with the locking block 16, and both the locking groove 10 and the locking block 16 are of spherical structures. As can be seen from the above design, the latch 16 can be stably latched with the latch 10 due to the design of the latch 10 and the latch 16.

In the fourth embodiment, the spring 11 is a compression spring, and spring washers are arranged at both ends of the spring 11. It can be seen from the above design that the service life of the spring 11 is improved by the design of the spring washer.

In the fifth embodiment, the outer diameter of the inner cutter tube 6 is 0.05-0.10 mm smaller than the inner diameter of the outer cutter tube 5, the cutter head 17 is made of martensite type stainless steel material, and the inner cutter tube 6 is made of 304 stainless steel material. As can be seen from the above design, the inner cutter tube 6 and the outer cutter tube 5 can be planed stably by designing the outer diameter of the inner cutter tube 6 and the inner diameter of the outer cutter tube 5.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In summary, with the above technical solution of the present invention, when the tool bit 17 needs to be installed coaxially with the inner tool tube 6, the connecting rod 15 with the latch 16 is first inserted into the groove 7 along the channel 8, in the process of going in, the connecting pipe 13 gradually presses the second sealing ring 14, the clamping block 16 gradually presses the pressing plate 12, the pressing plate 12 presses the spring 11, the spring 11 is gradually compressed, then the worker rotates the cutter head 17 clockwise along the radian of the sliding groove 9, the cutter head 17 with the connecting rod 15 and the clamping block 16 slides into the clamping groove 10 along the sliding groove 9, at the moment, the worker loosens his hand, the springs 11 extend and release pressure to push the clamping block 16, the clamping block 16 is clamped with the clamping groove 10, meanwhile, the gap at the joint of the cutter head 17 and the inner cutter tube 6 can be filled with the second stretched sealing ring 14, so that liquid leakage cannot occur at the joint of the cutter head 17 and the inner cutter tube 6.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The medical spherical grinding head planing tool bit is characterized by comprising a tool assembly (1), wherein a suction window (2) is arranged on the tool assembly (1), a tool shoe assembly (3) is arranged on one side of the tool assembly (1), a sealing ring I (4) is arranged on one side, close to the tool assembly (1), of the tool shoe assembly (3), an outer tool tube (5) is arranged on one side, away from the sealing ring I (4), of the tool shoe assembly (3), an inner tool tube (6) is arranged in the outer tool tube (5), a plurality of clamping hole devices are arranged on the other side of the inner tool tube (6), each clamping hole device comprises a groove (7), a channel (8) is arranged on one side inside the groove (7), a sliding groove (9) which is connected with the channel (8) and is communicated is arranged on one side of the inner bottom of the groove (7), and the sliding groove (9) is perpendicular to the channel (8), the top of one side, far away from the channel (8), of the sliding groove (9) is provided with a clamping groove (10), the center of the bottom in the groove (7) is provided with a spring (11), the top of the spring (11) is provided with an extrusion plate (12), one side, far away from the knife shoe assembly (3), of the inner knife tube (6) is provided with a connecting tube (13), one side, close to the inner knife tube (6), of the connecting tube (13) is provided with a second sealing ring (14), the middle part of the second sealing ring (14) is provided with a plurality of connecting rods (15), one end of each connecting rod (15) is fixedly connected with the side surface penetrating through the second sealing ring (14) and the connecting tube (13), the other end of each connecting rod (15) is provided with a clamping block (16), the connecting rod (15) drives the clamping block (16) to penetrate through the channel (8) into the groove (7), and then the sliding groove (9) is clamped with the clamping groove (10) through clockwise rotation, the extrusion plate (12) and the fixture block (16) are extruded together, and a cutter head (17) is arranged on one side, far away from the second sealing ring (14), of the connecting pipe (13).

2. A medical spherical grinding head planing tool head according to claim 1, wherein said passage (8) and said sliding groove (9) are both of cylindrical configuration, said passage (8) and said sliding groove (9) having the same inner diameter.

3. The medical spherical grinding head planing tool head according to claim 1, wherein the number of said chucking hole means, said connecting rods (15) and said clamping blocks (16) is four and three correspond one to one.

4. The medical spherical grinding head planing tool head according to claim 1, wherein said locking groove (10) is fitted with said locking block (16), and said locking groove (10) and said locking block (16) are both spherical.

5. The medical spherical grinding head planing tool head according to claim 1, wherein said spring (11) is a compression spring, and both ends of said spring (11) are provided with spring washers.

6. The medical spherical grinding head planing tool head according to claim 1, wherein the outer diameter of the inner cutter tube (6) is smaller than the inner diameter of the outer cutter tube (5) by 0.05 to 0.10 mm.

7. The medical spherical grinding head planing tool head according to claim 1, wherein the tool head (17) is made of a martensitic stainless steel material and the inner cutter tube (6) is made of a 304 stainless steel material.