CN209984291U

CN209984291U - Broken nail taking-out device for orthopedic hollow nail

Info

Publication number: CN209984291U
Application number: CN201920089466.1U
Authority: CN
Inventors: 韩小波; 张宝艳
Original assignee: Juxian Peoples Hospital
Current assignee: Juxian Peoples Hospital
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2020-01-24
Anticipated expiration: 2029-01-18

Abstract

The utility model belongs to the technical field of medical instrument and specifically relates to a disconnected nail remove device of hollow nail of orthopedics, including getting the nail pole be equipped with handheld unit on the connecting portion of getting the nail pole, handheld unit is used for the hand to grip, connecting portion and inflation link firmly mutually, inflation portion is used for inserting disconnected nail inside, is equipped with the inflation piece that can follow inflation portion axial displacement in inflation portion, the inflation piece outwards expands the back and links to each other with disconnected nail inner wall, makes disconnected nail follow inflation portion and connecting portion remove. The utility model has the advantages of reasonable design, structural design is reasonable, need not punch in advance to the broken nail, can directly fix the broken nail, then rotatory taking out, has basically eliminated the destruction to sclerotin around the broken nail, becomes shaft-like structure, can directly stretch into in the broken nail, uses easy operation convenience, has improved the broken nail of hollow nail and has taken out quality and efficiency.

Description

Broken nail taking-out device for orthopedic hollow nail

Technical Field

The utility model belongs to the technical field of medical instrument and specifically relates to a disconnected nail remove device of hollow nail of orthopedics.

Background

At present, in the orthopedic surgery, the combination of a screw with a steel plate and the internal fixation of a hollow nail are common methods, and the hollow nail has structural advantages which are not possessed by common screws, so the hollow nail is frequently used. However, the hollow nail often cannot rotate in the taking-out process, the hollow nail is tightly combined with the bone, the hollow nail is broken and damaged, the hollow nail is difficult to take out by using a taking-out tool equipped with the hollow nail, and at this time, the traditional means generally uses a locking pliers taking-out device, but the locking pliers have great destructiveness on the bone, so that the pain is brought to a patient;

in the prior art, patent application No. 201711119647.6 discloses a device for taking out hollow nails in orthopedics department, which is characterized in that an electric drill drives a punching nail to drill an internal thread on a broken nail, and then the broken nail is taken out by screwing a nail taking nail into the broken nail, but the punching nail and the nail taking nail of the device are connected to occupy space, so that a lot of inconvenience exists in the actual operation process, the fixed position of part of the hollow nails cannot be expanded by using the device, and the drilling top and the nail taking nail can be blocked mutually, so that the use is inconvenient; and above-mentioned device need punch earlier-get two-step operation of nail after when getting the nail, still can cause certain degree to destroy near the sclerotin of broken nail when using the nail that punches to punch, and current hollow nail broken nail takes out still has a lot of problems, the urgent need to improve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a disconnected nail remove device of hollow nail of orthopedics, its structural design is reasonable, need not punch in advance to disconnected nail, can directly fix disconnected nail, then the rotation takes out, has basically eliminated the destruction to sclerotin around the disconnected nail, becomes shaft-like structure, can directly stretch into in the disconnected nail, uses easy operation convenience, has improved the disconnected nail of hollow nail and has taken out quality and efficiency, has solved the problem that exists among the prior art.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides a disconnected nail remove device of hollow nail of orthopedics, is including getting the nail pole be equipped with handheld unit on the connecting portion of getting the nail pole, handheld unit is used for the hand to grip, connecting portion and inflation portion link firmly mutually, inflation portion is used for inserting inside disconnected nail, is equipped with the inflation piece that can follow inflation portion axial displacement in inflation portion, the inflation piece outwards expands the back and links to each other with disconnected nail inner wall, makes disconnected nail follow inflation portion and connecting portion remove.

Preferably, the handheld unit comprises a first holding rod and a second holding rod which are vertically connected with the connecting part, and the first holding rod and the second holding rod are arranged in parallel.

Preferably, the first holding rod and the second holding rod are detachably connected relative to the connecting part.

Preferably, the connecting part is provided with two through holes, and the first holding rod and the second holding rod are respectively connected with the bolt after penetrating through the through holes.

Preferably, one end of the connecting part is connected with an electric drill.

Preferably, one end of the connecting part is provided with a clamping groove, and the clamping groove is clamped with a chuck of the electric drill.

Preferably, the inflation portion includes the stiff end that links to each other with connecting portion, stiff end and elastic tube link to each other, be equipped with on the stiff end with the inside valve that is linked together of elastic tube, at the elastic tube overcoat be equipped with interior sleeve pipe, be equipped with a plurality of first recesses including on the sleeve pipe, be equipped with a plurality of inflation pieces between elastic tube and interior sleeve pipe, inflation piece and first recess card are established mutually, are equipped with the outer tube including the outer tube overcoat be equipped with a plurality of and the corresponding second recess of first recess on the outer tube, the area of second recess is less than first recess, the relative second recess displacement of inflation piece.

Preferably, the expansion block comprises an arc-shaped seat plate clamped between the elastic tube and the inner sleeve, a reinforcing part is arranged on the arc-shaped seat plate, the reinforcing part and the first groove are movably clamped, an extending part is arranged on the reinforcing part, the extending part and the second groove are movably clamped, a protruding spike is arranged on the extending part, and the length of the protruding spike is smaller than the wall thickness of the broken nail.

Preferably, the first grooves are arranged at intervals along the length direction of the inner sleeve, two first grooves are symmetrically arranged at the same horizontal height of the inner sleeve, and two groups of first grooves adjacent to each other in the length direction of the inner sleeve are arranged in a cross manner.

Preferably, the valve can be externally connected with an air inlet pipeline and/or a liquid inlet pipeline.

The utility model adopts the above structure beneficial effect is that, its structural design is reasonable, need not punch in advance to disconnected nail, can directly fix disconnected nail, then rotatory taking out, has basically eliminated the destruction to sclerotin around the disconnected nail, becomes shaft-like structure, can directly stretch into in the disconnected nail, uses easy operation convenience, has improved the disconnected nail of hollow nail and has taken out quality and efficiency.

Drawings

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

Fig. 2 is a schematic view of the three-dimensional explosion structure of the present invention.

Fig. 3 is a schematic side view of the present invention.

Fig. 4 is a schematic structural diagram of the expansion block of the present invention.

In the figure, 1, a nail taking rod; 2. a connecting portion; 201. a through hole; 202. a clamping groove; 3. an expansion part; 301. A fixed end; 302. an elastic cylinder; 303. an inner sleeve; 304. an outer sleeve; 4. an expansion block; 5. a first holding rod; 6. a second holding rod; 7. a bolt; 8. a valve; 9. a first groove; 10. an expansion block; 11. A second groove; 12. an arc-shaped seat plate; 13. a reinforcing portion; 14. an extension portion; 15. and (6) burrowing.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

As shown in figures 1-4, a disconnected nail remove device of orthopedics hollow nail, including getting nail pole 1 be equipped with handheld unit on getting connecting portion 2 of nail pole 1, handheld unit is used for the hand to grip, connecting portion 2 links firmly with inflation portion 3 mutually, inflation portion 3 is used for inserting inside disconnected nail, is equipped with the inflation piece 4 that can follow 3 axial displacement of inflation portion on inflation portion 3, inflation piece 4 outwards expands the back and links to each other with disconnected nail inner wall, makes disconnected nail follow inflation portion 3 and connecting portion 2 and remove.

In order to facilitate the handheld power application of an operator, the connecting part 2 and the expansion part 3 are rotated to further drive the broken nail to rotate, the handheld unit comprises a first holding rod 5 and a second holding rod 6 which are vertically connected with the connecting part 2, and the first holding rod 5 and the second holding rod 6 are arranged in parallel.

In order to facilitate the installation and use of the first holding rod 5 and the second holding rod 6, the first holding rod 5 and the second holding rod 6 are detachably connected with the connecting part 2.

Two through holes 201 are arranged on the connecting part 2, and the first holding rod 5 and the second holding rod 6 are respectively connected with the bolt 7 after penetrating through the through holes 201.

In consideration of the alternative, the first and second holding rods 5, 6 may also be detachably connected to the connecting portion 2.

Instead of rotating the connection part 2 using the hand-held unit, the connection part 2 may be connected to a power drill, one end of the connection part 2 being connected to the power drill. Can use electric drill centre gripping connecting portion 2, drive connecting portion 2, inflation portion 3 through the electric drill and rotate, and then drive the disconnected nail and rotate.

In order to improve the stability of the electric drill for clamping the connecting part 2, a clamping groove 202 is arranged at one end of the connecting part 2, and the clamping groove 202 is clamped with a chuck of the electric drill.

Expansion portion 3 includes stiff end 301 that links to each other with connecting portion 2, stiff end 301 and elastic tube 302 link to each other, be equipped with on stiff end 301 with the inside valve 8 that is linked together of elastic tube 302, be equipped with interior sleeve pipe 303 at elastic tube 302 overcoat, be equipped with a plurality of first recesses 9 on interior sleeve pipe 303, be equipped with a plurality of expansion pieces 10 between elastic tube 302 and interior sleeve pipe 303, expansion piece 10 and first recess 9 block mutually and establish, be equipped with outer tube 304 at interior sleeve pipe 303 overcoat be equipped with a plurality of and the corresponding second recess 11 of first recess 9 on the outer tube 304, the area of second recess 11 is less than first recess 9, expansion piece 10 can be the displacement of second recess 11 relatively.

The expansion block 10 comprises an arc-shaped seat plate 12 clamped between the elastic tube 302 and the inner sleeve 303, a reinforcing part 13 is arranged on the arc-shaped seat plate 12, the reinforcing part 13 and the first groove 9 are movably clamped, an extending part 14 is arranged on the reinforcing part 13, the extending part 14 and the second groove 11 are movably clamped, a protruding spine 15 is arranged on the extending part 14, and the length of the protruding spine 15 is smaller than the wall thickness of a broken nail. The elastic tube 302 can be a rubber tube.

In order to improve the connection stability of the expansion block 3 and the side wall of the broken nail after connection, the first grooves 9 are arranged at intervals along the length direction of the inner sleeve 303, two first grooves 9 are symmetrically arranged at the same horizontal height of the inner sleeve 303, and two groups of adjacent first grooves 9 in the length direction of the inner sleeve 303 are arranged in a cross manner. The expansion block 3 is arranged in the mode, the area of the side wall of the broken nail can be effectively utilized, the stress of the broken nail is more even and stable, and after the protruding spine 15 on the extension part 14 of the expansion block 3 is pricked into the side wall of the broken nail, the effective combination of the protruding spine and the broken nail can be achieved.

The valve 8 can be externally connected with an air inlet pipeline and/or a liquid inlet pipeline.

When the nail taking device is used, the expansion part 3 is inserted into the judgment part, the valve 8 on the fixed end 301 is connected through the air inlet pipeline or the liquid inlet pipeline, air or liquid is filled into the elastic cylinder 302, the elastic cylinder 302 is expanded, the elastic cylinder 302 in the inner sleeve 303 pushes the expansion block 10 outwards, the reinforcing part 13 of the expansion block 10 slides outwards along the first groove 9 of the inner sleeve 303 and the extending part 14 along the second groove 11 of the outer sleeve 304 until the spurs 15 on the extending part 304 abut against and are forced to be inserted into the side wall of the broken nail, and because the length of the spurs 15 is smaller than the wall thickness of the broken nail, the spurs 15 cannot penetrate through the side wall of the broken nail, so that the body around the broken nail is prevented from being damaged by the spurs in the nail taking process, the inflation or liquid filling is stopped after the spurs 15 are inserted into the judgment part, the connecting part 2 is rotated by using a hand-held. This scheme of use need not punch in advance to disconnected nail, can directly fix disconnected nail, then the rotation is taken out, has basically eliminated the destruction to sclerotin around the disconnected nail, becomes shaft-like structure, can directly stretch into in the disconnected nail, uses easy operation convenience, has improved the disconnected nail of hollow nail and has taken out quality and efficiency.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides a disconnected nail remove device of hollow nail of orthopedics, its characterized in that, including getting the nail pole be equipped with handheld unit on getting the connecting portion of nail pole, handheld unit is used for the hand to grip, connecting portion and inflation portion link firmly mutually, inflation portion is used for inserting inside disconnected nail, is equipped with the inflation piece that can follow inflation portion axial displacement in inflation portion, the inflation piece outwards expands the back and links to each other with disconnected nail inner wall, makes disconnected nail follow inflation portion and connecting portion remove.

2. A broken nail extraction device for hollow orthopedic nails according to claim 1, wherein the hand-held unit comprises a first holding rod and a second holding rod vertically connected to the connecting portion, and the first holding rod and the second holding rod are disposed in parallel.

3. A broken nail extraction device according to claim 2, wherein the first holding rod and the second holding rod are detachably connected with respect to the connecting portion.

4. A broken nail extracting apparatus according to claim 3, wherein two through holes are provided in the connecting portion, and the first holding rod and the second holding rod are connected to the bolt after passing through the through holes, respectively.

5. A device for removing a broken nail from an orthopaedic hollow nail according to any one of claims 1 to 4, wherein the connecting portion is connected at one end to an electric drill.

6. A broken nail extraction device of an orthopedic hollow nail according to claim 5, characterized in that a clamping groove is provided at one end of the connection part, and the clamping groove is clamped with a chuck of an electric drill.

7. The device for removing broken nails of orthopaedic hollow nails, according to claim 6, wherein the expansion part comprises a fixed end connected to the connection part, the fixed end is connected to the elastic tube, a valve is disposed on the fixed end and connected to the inside of the elastic tube, an inner sleeve is sleeved on the elastic tube, a plurality of first grooves are disposed on the inner sleeve, a plurality of expansion blocks are disposed between the elastic tube and the inner sleeve, the expansion blocks are engaged with the first grooves, an outer sleeve is sleeved on the inner sleeve, a plurality of second grooves corresponding to the first grooves are disposed on the outer sleeve, the area of the second grooves is smaller than the first grooves, and the expansion blocks can move relative to the second grooves.

8. The broken nail extraction device of the orthopedic hollow nail as claimed in claim 7, wherein the expansion block comprises an arc seat plate clamped between the elastic tube and the inner sleeve, a reinforcement part is disposed on the arc seat plate, the reinforcement part is movably clamped with the first groove, an extension part is disposed on the reinforcement part, the extension part is movably clamped with the second groove, a protruding thorn is disposed on the extension part, and the length of the protruding thorn is smaller than the wall thickness of the broken nail.

9. The device for extracting a broken nail from a hollow nail in orthopedics department according to claim 8, wherein the first grooves are arranged at intervals along the length direction of the inner sleeve, two first grooves are symmetrically arranged at the same horizontal height of the inner sleeve, and two groups of the first grooves which are adjacent to each other in the length direction of the inner sleeve are arranged in a crisscross manner.

10. A device for extracting broken bone pins from hollow bone pins according to claim 8 or 9, wherein the valve is connected to an air inlet and/or liquid inlet.