CN215129970U - Percutaneous nail stick nut remove device - Google Patents

Abstract

The utility model discloses a percutaneous nail rod nut taking-out device, which comprises a device main body, a fixed rod and a handle rod, wherein the inside of the device main body is fixedly connected with the fixed rod, the top of the fixed rod is fixedly connected with the handle rod, the bottom of the device main body is fixedly connected with a limit station, the bottom of the limit station is fixedly connected with a positioning column, the inside of the device main body is fixedly connected with a nut groove, the nut groove can be reinforced, a rubber pad has antiskid property, the friction force can be increased, the practicability of the device can be improved, a corner block can improve the connection performance of the handle rod and the fixed rod, the practicability of the device can be improved, a clamping sheet forms a clamping range, the practicability of the device can be improved, the taking-out mechanism shortens the operation time, avoids the iatrogenic injury, the practicability of the device can be improved, the splicing mechanism can improve the flexibility and the convenience of the device, and is suitable for the use of taking out the nail rod nut, has wide development prospect in the future.

Description

Percutaneous nail stick nut remove device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a percutaneous nail rod nut taking-out device.

Background

With the rapid development of minimally invasive spine surgery, the percutaneous nail-rod system is widely applied to lumbar vertebra fracture, lower thoracic vertebra fracture and endoscopic fusion internal fixation in clinic, and a satisfactory fixation effect is achieved. Compared with the traditional open surgery, the percutaneous nail-rod system internal fixation has the advantages of small injury to paraspinal muscles, maintenance of post-operative spinal stability, small wound, less bleeding, quick recovery, less complications, definite curative effect and the like.

Percutaneous nail stick system internal fixation is the common technique of clinical treatment lumbar fracture, lower thoracic vertebra fracture, and percutaneous nail stick system puts into the process has G type arm perspective and pjncture needle, the induction of guide pin to put into, and the nut is put into and is screwed up along pedicle of vertebral arch screw sleeve pipe, but chest lumbar vertebrae minimal access surgery generally mostly puts down nail or experienced doctor bare-handed nail of putting of robot navigation assistance: the former has expensive equipment cost and low popularization rate; the latter has high requirements on doctors, and the nail placement needs to be frequently observed by means of perspective in the operation.

Therefore, how to design a percutaneous nail rod nut extraction device becomes a problem to be solved currently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a percutaneous nail stick nut remove device to the phenomenon of inconvenient use appears easily in the use that proposes in solving above-mentioned background, does not have the problem of concatenation function.

In order to achieve the above object, the utility model provides a following technical scheme: a percutaneous nail rod nut taking-out device comprises a device main body, a fixing rod and a handle rod, wherein the fixing rod is fixedly connected inside the device main body, the handle rod is fixedly connected at the top of the fixing rod, a limiting table is fixedly connected at the bottom of the device main body, a positioning column is fixedly connected at the bottom of the limiting table, a nut groove is fixedly connected inside the device main body, a screw is fixedly connected at the bottom of the nut groove, a first fixing nail is fixedly connected to one side of the bottom inside the device main body, a second fixing nail is fixedly connected to one side of the first fixing nail, a connecting block is fixedly connected to the bottom inside the handle rod, a concave block is fixedly connected to the inside of the fixing rod, a convex block is fixedly connected to the bottom of the concave block, a fastener is fixedly connected to one side of the convex block, and a clamping sheet is fixedly connected to the bottom of the fixing rod, the bottom of the screw is fixedly connected with a placing table.

Preferably, the outer portion of the handle rod is fixedly connected with a fixing hole, one side of the fixing hole is fixedly connected with a rubber pad, one side of the bottom of the handle rod is fixedly connected with a corner block, and the fixing hole, the rubber pad and the corner block form an anti-skidding mechanism.

Preferably, the fixing rod and the handle rod form a T-shaped wrench, and two positioning columns are arranged.

Preferably, the concave block is exactly matched with the convex block for fixing, and the number of the clamping pieces is two and is in a sharp-horn shape.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this kind of percutaneous nail stick nut remove device, through setting up the extraction mechanism, spacing platform provides a work tie point, is convenient for take out work, and the reference column carries out the location and supports, and first staple and second staple can improve the steadiness, and the nut is just getting into this device centre gripping scope, makes screw and nut recess incision and wound littleer, reduces nut recess not hard up back and blocks the chance that gets into the soft tissue clearance because of the soft tissue, shortens operation time, avoids iatrogenic source nature damage, can improve the practicality of device.

2. This kind of percutaneous excellent nut remove device that follows closely, through setting up splicing mechanism, the inside of dead lever is equipped with concave piece, concave piece cooperatees with the lug and carries out unsmooth chucking work, can carry out a fixed with the upper end and the lower extreme of dead lever, the fastener is convenient for strengthen fixed, can improve device's fixed strength, the condition of avoiding appearing droing appears, the effect is taken out in the influence, the dead lever bottom sets up the holding piece, the holding piece forms a centre gripping scope, be favorable to going to taking out the nut, improve work efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the inside of the device main body of the present invention;

FIG. 3 is a schematic cross-sectional view of the bottom of the main body of the device of the present invention;

fig. 4 is the schematic view of the sectional structure of the splicing mechanism of the present invention.

In the figure: 1. a device main body; 2. fixing the rod; 3. a handle bar; 4. a limiting table; 5. a positioning column; 6. a fixing hole; 7. a rubber pad; 8. a corner block; 9. a nut groove; 10. a screw; 11. a placing table; 12. a first staple; 13. a second staple; 14. connecting blocks; 15. a concave block; 16. a bump; 17. a fastener; 18. and a clamping piece.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a percutaneous nail rod nut taking-out device comprises a device main body 1, a fixed rod 2 and a handle rod 3, wherein the fixed rod 2 is fixedly connected inside the device main body 1, the handle rod 3 is fixedly connected on the top of the fixed rod 2, a limiting table 4 is fixedly connected on the bottom of the device main body 1, a positioning column 5 is fixedly connected on the bottom of the limiting table 4, a nut groove 9 is fixedly connected inside the device main body 1, a screw 10 is fixedly connected on the bottom of the nut groove 9, a first fixing nail 12 is fixedly connected on one side of the inner bottom of the device main body 1, a second fixing nail 13 is fixedly connected on one side of the first fixing nail 12, a connecting block 14 is fixedly connected on the inner bottom of the handle rod 3, a concave block 15 is fixedly connected inside the fixed rod 2, a convex block 16 is fixedly connected on the bottom of the concave block 15, a fastener 17 is fixedly connected on one side of the convex block 16, and a clamping sheet 18 is fixedly connected on the bottom of the fixed rod 2, a placing table 11 is fixedly connected to the bottom of the screw 10.

Preferably, the outside fixedly connected with fixed orifices 6 of handle pole 3, one side fixedly connected with rubber pad 7 of fixed orifices 6, bottom one side fixedly connected with corner piece 8 of handle pole 3, fixed orifices 6, anti-skidding mechanism is constituteed to rubber pad 7 and corner piece 8, in traditional percutaneous spike nut remove device, when taking out the work, remove device's antiskid sets up inadequately, comparatively simple, through setting up anti-skidding mechanism, handle pole 3 outside sets up fixed orifices 6, fixed orifices 6 is sunken type, be convenient for hang handle pole 3, rubber pad 7 is equipped with two, just the person of facilitating the use carries out the during operation, both hands are held, stability is improved, corner piece 8, can improve the connectivity of handle pole 3 and dead lever 2, can improve the practicality of device.

Preferably, the fixing rod 2 and the handle rod 3 form a T-shaped wrench, two positioning columns 5 are arranged, the device main body 1, the fixing rod 2, the handle rod 3, the limit table 4, the positioning column 5, the nut groove 9, the screw 10, the first fixing nail 12 and the second fixing nail 13 jointly form a taking-out mechanism, when the fracture reaches the clinical healing standard, an in-line fixing taking-out operation is needed, the percutaneous nail rod is small, the operation incision is small, due to the blocking of soft tissues, the percutaneous nail rod nut cannot be taken out smoothly and directly, only the contact of fingers on adjacent incisions is needed, then the hemostatic forceps are clamped and taken out, so that the wound is enlarged, the obese patient cannot take out smoothly, certain limitations are achieved, by arranging the taking-out mechanism, the limit table 4 provides a working flat point, the taking-out operation is convenient, the positioning columns 5 perform positioning support, when the taking-out operation is needed, the device comprises a device body 1, a first fixing nail 12 and a second fixing nail 13 can improve stability, the diameter of a fixing rod 2 is smaller than that of the device body 1, the device body 1 is matched with a T-shaped wrench for use, namely, the fixing rod 2 and a handle rod 3 are used, a nut groove 9 is arranged in the T-shaped wrench, then the T-shaped wrench is arranged on the tail of a screw 10, the nut is taken out by the anti-clockwise T-shaped wrench, the T-shaped wrench is not removed, the nut enters the clamping range of the device at the moment, cuts and wounds of the screw 10 and the nut groove 9 are smaller, the probability that the nut groove 9 gets into soft tissue gaps due to soft tissue blocking after loosening is reduced, the operation time is shortened, iatrogenic injury is avoided, and the practicability of the device can be improved.

Preferably, the concave block 15 is exactly matched with the convex block 16 for fixing, the two clamping sheets 18 are arranged and have a sharp-horn shape, the connecting block 14, the concave block 15, the convex block 16, the fastening piece 17 and the clamping sheets 18 jointly form a splicing mechanism, the percutaneous nail rod nut taking-out device cannot adjust the height of the taking-out device according to the requirements of a user, certain trouble is easily brought to the user, the structure is single, through arranging the splicing mechanism, when the length of the fixed rod 2 is not enough, splicing work can be carried out by taking a matched rod, the concave block 15 is arranged inside the fixed rod 2, the concave block 15 is matched with the convex block 16 for carrying out concave-convex clamping work, the upper end and the lower end of the fixed rod 2 can be fixed, the fastening piece 17 is convenient for strengthening and fixing, the fixing strength of the device can be improved, the falling-off condition is avoided, and the taking-out effect is influenced, the bottom of the fixing rod 2 is provided with the clamping piece 18, the clamping piece 18 forms a clamping range, the nut can be taken out conveniently, and the working efficiency is improved.

The working principle is as follows: firstly, by arranging the anti-skid mechanism, the fixing holes 6 are formed in the outer portion of the handle rod 3, the fixing holes 6 are concave, the handle rod 3 can be conveniently hung, two rubber pads 7 are arranged, a user can conveniently hold the handle rod by two hands when working, stability is improved, and the corner block 8 can improve the connection performance of the handle rod 3 and the fixing rod 2 and improve the practicability of the device;

then, by arranging the taking-out mechanism, the limiting table 4 provides a working flat point for taking out conveniently, the positioning column 5 carries out positioning support, when the device body 1 needs to be taken out, the device body 1 is placed in one step, the first fixing nail 12 and the second fixing nail 13 can improve the stability, the diameter of the fixing rod 2 is smaller than that of the device body 1, the device body 1 is matched with a T-shaped wrench for use, namely the fixed rod 2 and the handle rod 3, the T-shaped wrench is placed in the nut groove 9, then the nut is taken out along the T-shaped wrench to the tail of the screw 10, the nut is taken out anticlockwise by the T-shaped wrench without removing the T-wrench, and the nut enters the clamping range of the device, so that the cuts and the wounds of the screw 10 and the nut groove 9 are smaller, the probability that the nut groove 9 enters the soft tissue gap due to the blocking of the soft tissue after loosening is reduced, the operation time is shortened, the iatrogenic injury is avoided, and the practicability of the device can be improved;

finally, through setting up the concatenation mechanism, when the length of dead lever 2 is not enough, can carry out a concatenation work through the assorted pole of taking, the inside of dead lever 2 is equipped with concave piece 15, concave piece 15 cooperatees with lug 16 and carries out a unsmooth chucking work, can carry out a fixed with the lower extreme with the upper end of dead lever 2, fastener 17 is convenient for strengthen fixedly, can improve the fixed strength of device, the condition of avoiding appearing droing appears, the effect is taken out in the influence, 2 bottoms of dead lever set up holding piece 18, holding piece 18 forms a centre gripping scope, be favorable to going to taking out the nut, and the work efficiency is improved, this is exactly this kind of percutaneous excellent nut remove device's theory of work.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a percutaneous nail stick nut remove device, includes device main part (1), dead lever (2) and handle pole (3), its characterized in that: the device comprises a device body (1), wherein a fixing rod (2) is fixedly connected to the inside of the device body (1), a handle rod (3) is fixedly connected to the top of the fixing rod (2), a limiting table (4) is fixedly connected to the bottom of the device body (1), a positioning column (5) is fixedly connected to the bottom of the limiting table (4), a nut groove (9) is fixedly connected to the inside of the device body (1), a screw (10) is fixedly connected to the bottom of the nut groove (9), a first fixing nail (12) is fixedly connected to one side of the bottom of the inside of the device body (1), a second fixing nail (13) is fixedly connected to one side of the first fixing nail (12), a connecting block (14) is fixedly connected to the bottom of the inside of the handle rod (3), a concave block (15) is fixedly connected to the inside of the fixing rod (2), and a convex block (16) is fixedly connected to the bottom of the concave block (15), one side of the convex block (16) is fixedly connected with a fastener (17), and the bottom of the fixed rod (2) is fixedly connected with a clamping piece (18).

2. The percutaneous pin nut extraction device of claim 1, wherein: the bottom of the screw (10) is fixedly connected with a placing table (11).

3. The percutaneous pin nut extraction device of claim 1, wherein: the anti-skidding mechanism is characterized in that a fixing hole (6) is fixedly connected to the outer portion of the handle holding rod (3), a rubber pad (7) is fixedly connected to one side of the fixing hole (6), a corner block (8) is fixedly connected to one side of the bottom of the handle holding rod (3), and the anti-skidding mechanism is formed by the fixing hole (6), the rubber pad (7) and the corner block (8).

4. The percutaneous pin nut extraction device of claim 1, wherein: the fixing rod (2) and the handle rod (3) form a T-shaped wrench.

5. The percutaneous pin nut extraction device of claim 1, wherein: two positioning columns (5) are arranged.

6. The percutaneous pin nut extraction device of claim 1, wherein: the concave block (15) is just matched with the convex block (16) for fixing.

7. The percutaneous pin nut extraction device of claim 1, wherein: the number of the clamping pieces (18) is two, and the clamping pieces are in a sharp-horn shape.

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