CN205903289U - Bone fetcher - Google Patents

Abstract

The utility model discloses a bone fetcher, bone fetcher include bone drill main part and bone meal collection mechanism, when using, make the drill bit contact the position that will obtain annular bone, through the rotation of boring the body, utilize the drill bit cutting to obtain annular bone, after starting vacuum device, the bone meal that above -mentioned cutting process produced is absorbed by the collecting pipe, gets into to collect the intracavity, the utility model discloses a device not only can acquire annular bone, can also collect bone meal.

Description

One kind takes bone object

Technical field

This utility model belongs to technical field of medical instruments, is related to one kind and takes bone object.

Background technology

When performing the operation to patient it is often necessary at certain position of bone, cutting carries initially with utensil in medical field Take annular bone, the utensil being used mostly is bone drill main body.But bone drill main body present in prior art is in use, meeting Produce bone meal, meanwhile, the bone meal of generation leads to waste can not reuse because collecting.In addition, existing bone drill main body There is a problem of that cutting efficiency is not high.

Content of the invention

For above-mentioned problems of the prior art or defect, the purpose of this utility model is, provides one kind to take bone Device, improves the efficiency of cut and extract annular bone, and collects the bone meal producing in cutting process.

To achieve these goals, this utility model employs the following technical solutions:

One kind takes bone object, and including bone drill main body, bone drill main body includes drill body, and drill body is tubular structure, the end of drill body For drill bit；Described take bone object also to include bone meal collecting mechanism, bone meal collecting mechanism includes collecting pipe, collecting chamber and negative pressure device, Collecting pipe is arranged on inside drill body, and one end of collecting pipe is connected with drill bit, and the other end of collecting pipe is along drill body axially across brill Body connects collecting chamber；Collecting chamber is all flexibly connected with collecting pipe and negative pressure device.

Specifically, described collecting chamber is arranged on described bone drill body interior, and negative pressure device is arranged on outside described bone drill main body Portion；Collecting chamber and negative pressure device are connected by negative tube；Collect intracavity and be movably set with filtration net cover.

Specifically, described collecting chamber includes cavity, and the top surface of cavity and bottom surface are provided with connecting tube, and connecting tube is arranged There is external screw thread；One end that described collecting pipe is connected with collecting chamber is provided with first sleeve, is provided with female thread in first sleeve, the Sleeve is threaded connection with the connecting tube of cavity top surface；One end that described negative tube is connected with collecting chamber is provided with second set Pipe, is provided with female thread, the second sleeve pipe is threaded connection with the connecting tube of cavity bottom surface in the second sleeve pipe；

The described filtration net cover of setting in cavity, the end of filtration net cover is provided with the 3rd sleeve pipe, setting in the 3rd sleeve pipe There is female thread, the 3rd sleeve pipe is threaded connection with the connecting tube of cavity top surface；

The top surface of cavity is detachably connected with the side wall of cavity.

Further, described bone drill main body is provided with enabling, described collecting chamber is arranged on bone drill body interior, positioned at opening At door.

Further, multiple sawtooth described drill bit have been evenly distributed, the internal diameter of drill bit is 7.5mm.

Further, described drill bit is intersected by two inclined-planes favouring drill body axial direction and constitutes, and two inclined-planes are respectively the One facet and the second facet, wherein, projected area in drill body axial direction for first facet is more than the second facet and is boring Projected area in body axial direction.

Further, the first described facet and the radial direction angle of drill body are 30 °, the axial direction of the second facet and drill body Angle is 15 °.

Further, the edge of the top surface of described cavity is provided with annular flange flange, and the end of the side wall of cavity is provided with ring Shape draw-in groove, annular flange flange can embed in annular slot.

Compared with prior art, this utility model has following technical effect that

1st, of the present utility model take bone object to include bone drill main body and bone meal collecting mechanism, use when, make bit contact will Obtain the position of annular bone, by the rotation of drill body, obtain annular bone using drill bit cutting；After starting negative pressure device, above-mentioned The bone meal that cutting process produces is collected pipe and absorbs, and enters and collects intracavity；Device of the present utility model can not only obtain annular Bone is additionally it is possible to be collected bone meal.

2nd, drill bit of the present utility model is intersected by two inclined-planes favouring drill body axial direction and constitutes, in drill body high-speed rotation In the case of, the intersection on two inclined-planes is sharp structure, and therefore drill bit is readily able to cut-out tissue, thus improving cutting effect Rate.

With reference to the drawings and specific embodiments, scheme of the present utility model is done below and explain in further detail and say Bright.

Brief description

Fig. 1 is overall structure diagram of the present utility model；

Fig. 2 is the bone meal collecting mechanism structural representation of bone drill body interior；

Fig. 3 is the structural representation of drill bit；

Fig. 4 be the first facet and the second facet respectively with the radial direction of drill body and the angle schematic diagram of axis；

The each label of in figure represents: 1 bone drill main body, 2 drill bodies, 3 drill bits, 4 bone meal collecting mechanisms, and 4-1 collects Pipe, 4-2 collecting chamber, 4-2-1 cavity, 4-3 negative pressure device, 4-4 negative tube, 4-5 filtration net cover, 5 enablings, 6 first facets, 7 second facets.

Specific embodiment

Defer to technique scheme, referring to Fig. 1 and 2, of the present utility model take bone object, including bone drill main body 1, bone drill main body 1 includes drill body 2, and drill body 2 is tubular structure, and the end of drill body 2 is drill bit 3；Described bone object is taken also to include bone meal collecting mechanism 4, bone meal collecting mechanism 4 includes collecting pipe 4-1, collecting chamber 4-2 and negative pressure device 4-3, and collecting pipe 4-1 is arranged on inside drill body 2, One end of collecting pipe 4-1 is connected with drill bit 3, and the other end of collecting pipe 4-1 connects collecting chamber 4- along drill body 2 axially across drill body 2 2；Collecting chamber 4-2 is all flexibly connected with collecting pipe 4-1 and negative pressure device 4-3.

Of the present utility model take bone object when using, so that drill bit 3 is contacted and will obtain the position of annular bone, by drill body 2 Rotation, obtains annular bone using drill bit 3 cutting；After starting negative pressure device 4-3, the bone meal that above-mentioned cutting process produces is collected Pipe 4-1 absorbs, and enters in collecting chamber 4-2；Device of the present utility model can not only obtain annular bone additionally it is possible to carry out bone meal Collect.

In order to ensure that bone meal can be to smoothly entering in collecting chamber 4-2, described collecting chamber 4-2 is arranged on described bone drill master Inside body 1, negative pressure device 4-3 is arranged on outside bone drill main body 1；Collecting chamber 4-2 and negative pressure device 4-3 passes through negative tube 4-4 even Connect；Meanwhile, by collecting chamber 4-2 be arranged on bone drill main body 1 internal so that device of the present utility model carry more convenient.Collect It is movably set with filtration net cover 4-5, filtration net cover 4-5 absorbs the bone meal being entered in collecting chamber 4-2 by collecting pipe 4-1 in the 4-2 of chamber, Prevent bone meal from entering in negative tube 4-4.

When of the present utility model take bone object life-time service after, the bone meal in collecting chamber 4-2 is more, in order to bone meal is clear Remove, do not affect the lasting use taking bone object of the present utility model, described collecting chamber 4-2 includes cavity 4-2-1, cavity 4-2-1's Top surface and bottom surface are provided with connecting tube, and connecting tube is provided with external screw thread；Described collecting pipe 4-1 is connected with collecting chamber 4-2 One end is provided with first sleeve, is provided with female thread in first sleeve, and the connecting tube of first sleeve and cavity 4-2-1 top surface is passed through Threaded；One end that described negative tube 4-4 is connected with collecting chamber 4-2 is provided with the second sleeve pipe, is provided with interior in the second sleeve pipe Screw thread, the second sleeve pipe is threaded connection with the connecting tube of cavity 4-2-1 bottom surface；The described drainage screen of setting in cavity 4-2-1 Set 4-5, the end of filtration net cover 4-5 is provided with the 3rd sleeve pipe, is provided with female thread in the 3rd sleeve pipe, the 3rd sleeve pipe and cavity 4- The connecting tube of 2-1 top surface is threaded connection；The top surface of cavity 4-2-1 is detachably connected with the side wall of cavity 4-2-1, optional Ground, the edge of the top surface of cavity 4-2-1 is provided with annular flange flange, and the side wall ends of cavity 4-2-1 are provided with annular slot, annular Flange can embed in annular slot, thus the top surface realizing cavity 4-2-1 is detachably connected with the side wall of cavity 4-2-1. Wherein, the top surface of described cavity 4-2-1 refers to the one end being connected with collecting pipe 4-1.It is provided with out in described bone drill main body 1 Door 5, described collecting chamber 4-2 is arranged on inside bone drill main body 1, positioned at opening the door at 5.

When needing to clear up the bone meal in filtration net cover 4-5, open enabling 5, by rotating first sleeve and the second sleeve pipe, Cavity 4-2-1 is taken out inside bone drill main body 1；The top surface of cavity 4-2-1 is separated with the side wall of cavity 4-2-1, rotates the 3rd Sleeve pipe, filtration net cover 4-5 is taken off, and clears up bone meal therein and collects.

Multiple sawtooth are evenly distributed on described drill bit 3, the internal diameter of drill bit 3 is 7.5mm it is ensured that adopting this utility model Take bone object to carry out taking bone after, the diameter of the circumferential notch staying is about 8mm.

Referring to Fig. 3, in order to improve the cutting efficiency taking bone object of the present utility model, described drill bit 3 is by favouring drill body 2 axle To two inclined-planes intersect constitute, this inclined-plane is for the radial direction of drill body 2.Two inclined-planes are respectively the first facet 6 and second facet 7.Referring to Fig. 3, clearly illustrate the structure of facet.Facet can be regarded as existing with a plane The front end updip bevel of drill body 2 cuts the structure to constitute.Projected area in drill body 2 axial direction for first facet 6 is more than second Projected area in drill body 2 axial direction for the facet 7.

Such structure, the edge on inclined-plane constitutes cutting edge, in the case of drill body 2 high-speed rotation, two inclined-planes Intersection be sharp structure, therefore drill bit 3 be readily able to cut-out tissue, thus improving cutting efficiency.

Referring to Fig. 4, drill bit 3 position is not only sharp keen to can be achieved with improving the purpose of success rate, the first facet 6 and brill The radial direction angle α of body 2 is 30 °, when the axial angle β of the second facet 7 and drill body 2 is 15 °, of the present utility model takes bone object to have There is preferable practical effect, thus providing a kind of preferable instrument for extracting annular bone.

Claims (8)

1. one kind takes bone object, and including bone drill main body (1), bone drill main body includes drill body (2) it is characterised in that drill body (2) is hollow Tubular construction, the end of drill body (2) is drill bit (3)；Described bone object is taken also to include bone meal collecting mechanism (4), bone meal collecting mechanism (4) Including collecting pipe (4-1), collecting chamber (4-2) and negative pressure device (4-3), collecting pipe (4-1) is arranged on drill body (2) inside, collects One end of pipe (4-1) is connected with drill bit (3), and the other end of collecting pipe (4-1) connects along drill body (2) axially across drill body (2) Collecting chamber (4-2)；Collecting chamber (4-2) is all flexibly connected with collecting pipe (4-1) and negative pressure device (4-3).

2. take bone object as claimed in claim 1 it is characterised in that described collecting chamber (4-2) is arranged on described bone drill main body (1) Inside, it is outside that negative pressure device (4-3) is arranged on described bone drill main body (1)；Collecting chamber (4-2) and negative pressure device (4-3) pass through to bear Pressure pipe (4-4) connects；It is movably set with filtration net cover (4-5) in collecting chamber (4-2).

3. take bone object as claimed in claim 2 it is characterised in that described collecting chamber (4-2) includes cavity (4-2-1), cavity (4-2-1) top surface and bottom surface are provided with connecting tube, and connecting tube is provided with external screw thread；Described collecting pipe (4-1) and collection One end that chamber (4-2) connects is provided with first sleeve, is provided with female thread, first sleeve and cavity (4-2-1) in first sleeve The connecting tube of top surface is threaded connection；One end that described negative tube (4-4) is connected with collecting chamber (4-2) is provided with second set Pipe, is provided with female thread, the second sleeve pipe is threaded connection with the connecting tube of cavity (4-2-1) bottom surface in the second sleeve pipe；

The described filtration net cover (4-5) of setting in cavity (4-2-1), the end of filtration net cover (4-5) is provided with the 3rd sleeve pipe, the It is provided with female thread, the 3rd sleeve pipe is threaded connection with the connecting tube of cavity (4-2-1) top surface in three sleeve pipes；

The top surface of cavity (4-2-1) is detachably connected with the side wall of cavity (4-2-1).

4. take bone object as claimed in claim 2 it is characterised in that enabling (5) is provided with described bone drill main body (1), described It is internal, positioned at (5) place of opening the door that collecting chamber (4-2) is arranged on bone drill main body (1).

5. taking bone object as claimed in claim 1 it is characterised in that being evenly distributed multiple sawtooth on described drill bit (3), boring The internal diameter of head (3) is 7.5mm.

6. take bone object as claimed in claim 1 it is characterised in that described drill bit (3) by favour drill body (2) axial direction two Intersect composition on inclined-plane, and two inclined-planes are respectively the first facet (6) and the second facets (7), and wherein, the first facet (6) exists Projected area in drill body (2) axial direction is more than projected area in drill body (2) axial direction for the second facet (7).

7. take bone object as claimed in claim 6 it is characterised in that described the first facet (6) is pressed from both sides with the radial direction of drill body (2) Angle is 30 °, and the second facet (7) is 15 ° with the axial angle of drill body (2).

8. take bone object as claimed in claim 3 it is characterised in that the edge of the top surface of described cavity (4-2-1) is provided with ring Shape flange, the end of the side wall of cavity (4-2-1) is provided with annular slot, and annular flange flange can embed in annular slot.