A minimally invasive dedicated reamer

Abstract

The utility model discloses a special intramedullary file of minimally invasive, relates to the technical field of intramedullary file, including file main part, the one end fixed connection of file main part has micro motor, the outer wall fixed connection of micro motor has handle, the outer wall movable joint of handle has heat dissipation mechanism, and heat dissipation mechanism includes ring, water pipe and transmission strip, and the both sides fixed mounting of ring have protruding block, and the one side of protruding block is fixedly connected with the one end of transmission strip, the utility model discloses the special structure design of heat dissipation mechanism, can utilize water pipe to radiate heat when intramedullary file works, reduces the heat damage risk of heat of the generation of filing to dental pulp tissue, guarantees postoperative recovery, and simultaneously, the connection and sliding relation among each part make heat dissipation mechanism can move flexibly, and the different filing operation demand of adaptation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of marrow cavity file, especially microtrauma special marrow cavity file. BACKGROUND

[0002] The microtrauma special marrow cavity file is a kind of medical instrument applied to medical field, is specially designed for minimally invasive surgery, belongs to the special type of marrow cavity file, and is mainly used to carry out filing operation to human marrow cavity (such as bone marrow cavity, dental pulp cavity etc.), and plays a key role in oral surgery, orthopedics etc.

[0003] But in the prior art, there is strong friction between marrow cavity file and marrow cavity wall, when marrow cavity file carries out filing operation in marrow cavity, the blade lines on its surface and the bone or dentin of marrow cavity wall rub each other, overcome friction and do work, heat is generated, if heat dissipation is not timely, it is easy to cause that temperature in marrow cavity is too high, causes heat damage to dental pulp tissue, and affects postoperative recovery. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems of not timely heat dissipation in the prior art, causing that temperature in marrow cavity is too high, causing heat damage to dental pulp tissue and affecting postoperative recovery, and proposes a kind of microtrauma special marrow cavity file.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of microtrauma special marrow cavity file, including file main part, the one end of file main part is fixedly connected with micro motor, micro motor's outer wall is fixedly connected with handle on the outer wall of handle, and handle is movably connected with heat dissipation mechanism;

[0006] Heat dissipation mechanism includes circular ring, water pipe and transmission bar, both sides of circular ring are fixedly installed with lug, one side of lug is fixedly connected with one end of transmission bar, the other end of transmission bar is fixedly connected with vertical rod, vertical rod's top is fixedly connected with collar, and collar is sleeved on the outer wall of file main part.

[0007] Preferably, the side of handle is fixedly connected with limit ring, and the limit ring is located at one side of circular ring.

[0008] Preferably, transmission bar penetrates limit ring.

[0009] Preferably, the outer wall of handle is fixedly installed with a plurality of positioning blocks, water pipe is slidably connected with one positioning block, and vertical rod is slidably connected with another positioning block.

[0010] Preferably, the side of limit ring is fixedly connected with bent guide rail, and bent guide rail is fixedly connected with the outer wall of handle.

[0011] Preferably, transmission bar is located in the inside of bent guide rail.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1、 the utility model discloses a special structure design of heat dissipation mechanism, can utilize water pipe to carry out heat dissipation when the reamer works, reduces the heat damage risk of dental pulp tissue due to reaming, guarantees postoperative recovery, simultaneously, the connection and sliding relation between each component make heat dissipation mechanism can move flexibly, adapts different reaming operation demand.

[0014] 2、 the utility model discloses setting up the bending guide rail, and the sliding constraint of water pipe and vertical rod is cooperated with the positioning block, so that heat dissipation mechanism can accurately adjust the relative position with reamer main part according to the heat production when reaming, when reaming produces a large amount of heat, can move heat dissipation mechanism to the position close to reamer main part fast, enhances heat dissipation, when the heat reduces, can also adjust the distance in time, avoids excessive cooling, realizes accurate control of the heat dissipation process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the minimally invasive special reamer of the utility model;

[0016] Figure 2 It is a side view of the minimally invasive special reamer of the utility model;

[0017] Figure 3 It is a circular ring, transmission strip three-dimensional and sleeve ring structure schematic view of the minimally invasive special reamer of the utility model.

[0018] Legend: 1, handle; 2, micro motor; 3, reamer main part; 4, heat dissipation mechanism; 5, limit ring; 6, bending guide rail; 7, positioning block; 41, sleeve ring; 42, vertical rod; 43, transmission strip; 44, circular ring; 45, lug; 46, water pipe. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further explained below in combination with the drawings and examples. It should be explained that the examples and features in the examples of the application can be combined with each other without conflict.

[0020] In the following description, a lot of specific details are set forth in order to fully understand the utility model, however, the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific examples disclosed in the following disclosure.

[0021] Example one: as Figure 1 , Figure 2 and Figure 3As shown, the utility model provides a kind of special intramedullary reamer, including reamer main body 3, the one end of reamer main body 3 is fixedly connected with micro motor 2, the outer wall of micro motor 2 is fixedly connected with handle 1, the outer wall of handle 1 is movably connected with heat dissipation mechanism 4;

[0022] Heat dissipation mechanism 4 includes circular ring 44, water pipe 46 and transmission bar 43, both sides of circular ring 44 are fixedly installed with lug 45, one side of lug 45 is fixedly connected with one end of transmission bar 43, the other end of transmission bar 43 is fixedly connected with vertical rod 42, the top of vertical rod 42 is fixedly connected with collar 41, collar 41 is sleeved on the outer wall of reamer main body 3, one side of handle 1 is fixedly connected with limit ring 5, limit ring 5 is located at one side of circular ring 44, transmission bar 43 penetrates limit ring 5.

[0023] The specific settings and effects of the present embodiment will be described below, the special intramedullary reamer is mainly composed of reamer main body 3, micro motor 2, handle 1 and heat dissipation mechanism 4, reamer main body 3 is directly used for the component of intramedullary reamer operation, micro motor 2 provides power for the rotation of reamer main body 3, handle 1 is convenient for user to hold and operate, heat dissipation mechanism 4 is used to solve the heat problem generated in the process of reaming, to avoid causing heat damage to dental pulp tissue, the two sides of circular ring 44 in heat dissipation mechanism 4 are symmetrically fixedly installed with lug 45, each lug 45 is closely connected with one end of transmission bar 43, and the connection mode provides stable force point for transmission bar 43.The other end of transmission bar 43 is connected with vertical rod 42, and the top of vertical rod 42 is fixedly connected with collar 41, and collar 41 is sleeved on the outer wall of reamer main body 3, and limit ring 5 plays the role of limiting the moving range of circular ring 44, to ensure that heat dissipation mechanism 4 moves in the specified area.Transmission bar 43 penetrates limit ring 5, which not only ensures that transmission bar 43 can move flexibly within a certain range, but also restricts the movement track of transmission bar 43 through limit ring 5, so that the operation of heat dissipation mechanism 4 is more stable and reliable.In actual operation, when the heat dissipation function needs to be started, the user can move transmission bar 43 under the constraint of limit ring 5 by pressing collar 41, to drive circular ring 44, vertical rod 42 and collar 41 to move, so as to adjust the relative position of heat dissipation mechanism 4 and reamer main body 3.

[0024] Embodiment two: as shown in Figure 1 And Figure 2 The outer wall of handle 1 is fixedly installed with a plurality of positioning blocks 7, water pipe 46 is slidably connected with one of the positioning blocks 7, vertical rod 42 is slidably connected with another positioning block 7, one side of limit ring 5 is fixedly connected with bent guide rail 6, bent guide rail 6 is fixedly connected with the outer wall of handle 1, and transmission bar 43 is located in the interior of bent guide rail 6.

[0025] The effect achieved by the whole embodiment is that the limiting ring 5 is fixedly connected with the bent guide rail 6 on one side, the positioning block 7 is used for determining the positions of the vertical rod 42 and the water delivery pipe 46, the bent guide rail 6 is fixed with the outer wall of the tool shank 1, the transmission bar 43 is located in the bent guide rail 6, the bent guide rail 6 provides a specific movement track for the transmission bar 43, in the operation process, the doctor pushes the sleeve ring 41 to make the transmission bar 43 move in the bent guide rail 6, due to the bent shape of the guide rail, the transmission bar 43 drives the circular ring 44 to move along the specific route, close to or away from the reamer main body 3, so that the heat dissipation effect is flexibly adjusted, when the reamer generates more heat in the reaming operation in the pulp cavity, the doctor operates the transmission bar 43, and the heat dissipation mechanism 4 is close to the reamer main body 3, and the water delivery pipe 46 transports the cooling liquid to perform efficient heat dissipation; when the heat is reduced, the transmission bar 43 can be operated to make the heat dissipation mechanism 4 appropriately away, and overcooling is avoided.

[0026] The working principle and the use method of the device are as follows: in use, the micro motor 2 drives the reamer main body 3 to rotate to perform the reaming operation. Heat is generated due to the friction between the reamer and the pulp cavity wall, and at this time, the heat dissipation mechanism 4 plays a role. When heat dissipation is needed, the sleeve ring 41 is pushed, the vertical rod 42 on the lower surface of the sleeve ring 41 drives the transmission bar 43 to move in the bent guide rail 6, the transmission bar 43 drives the circular ring 44, the vertical rod 42 and the sleeve ring 41 to move, the position of the heat dissipation mechanism 4 is changed, the water delivery pipe 46 can be used for transporting the cooling liquid, the cooling liquid flows out of the water delivery pipe 46, heat on the reamer main body 3 is taken away, the temperature in the pulp cavity is prevented from being too high to cause heat damage to the dental pulp tissue, and the heat dissipation function of the reamer is realized, the safety of the dental pulp tissue in the operation process is ensured, and the postoperative recovery is promoted.

[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A minimally invasive intramedullary file, comprising a file body (3), a micro motor (2) fixedly connected to one end of the file body (3), and a handle (1) fixedly connected to the outer wall of the micro motor (2), characterized in that: A heat dissipation mechanism (4) is movably connected to the outer wall of the handle (1); The heat dissipation mechanism (4) includes a ring (44), a water supply pipe (46), and a transmission bar (43). Both sides of the ring (44) are fixedly installed with protrusions (45). One side of the protrusions (45) is fixedly connected to one end of the transmission bar (43). The other end of the transmission bar (43) is fixedly connected to a vertical rod (42). The top of the vertical rod (42) is fixedly connected to a collar (41), which is sleeved on the outer wall of the file body (3).

2. The minimally invasive medullary canal file according to claim 1, characterized in that: A limiting ring (5) is fixedly connected to one side of the tool holder (1), and the limiting ring (5) is located on one side of the ring (44).

3. The minimally invasive special medullary canal file according to claim 1, characterized in that: The transmission bar (43) passes through the limiting ring (5).

4. The minimally invasive medullary canal file according to claim 1, characterized in that: Multiple positioning blocks (7) are fixedly installed on the outer wall of the handle (1). The water supply pipe (46) is slidably connected to one of the positioning blocks (7), and the vertical rod (42) is slidably connected to another positioning block (7).

5. The minimally invasive medullary canal file according to claim 2, characterized in that: A bent guide rail (6) is fixedly connected to one side of the limiting ring (5), and the bent guide rail (6) is fixedly connected to the outer wall of the tool holder (1).

6. The minimally invasive special medullary canal file according to claim 1, characterized in that: The transmission bar (43) is located inside the bent guide rail (6).

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