CN211796808U

CN211796808U - Medical science is pressure release screw for orthopedics

Info

Publication number: CN211796808U
Application number: CN202020281411.3U
Authority: CN
Inventors: 程杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-10-30
Anticipated expiration: 2030-03-10

Abstract

The utility model discloses a pressure release screw for medical science orthopedics relates to orthopedics screw technical field, has solved current orthopedics screw, and the screw thread of screw circles round and dismantles the loaded down with trivial details inconvenience of flow, and the longer problem that can prolong patient's painful time of dismantlement time. A medical pressure relief screw for orthopedics comprises a threaded semicircular sleeve, a positioning lug, a threaded sleeve, a drill bit, a screw cap, a vertical insertion shaft rod and an inner hexagon bolt, wherein the two threaded semicircular sleeves are abutted together to form a complete screw; a threaded sleeve is supported and welded at the inner part of the top end of the right threaded semicircular sleeve; when the two threaded semicircular sleeves are butted and combined together, the left and right positioning lug blocks on the threaded semicircular sleeves are inserted together in a staggered manner; the bottoms of the two threaded semicircular sleeves are provided with a drill bit. The utility model provides an hexagon socket head cap screw can be in the same place nut and two screw thread semicircle covers lock joint to transmit the power of revolving of nut for two screw thread semicircle covers.

Description

Medical science is pressure release screw for orthopedics

Technical Field

The utility model relates to an orthopedics screw technical field specifically is a pressure release screw for medical science orthopedics.

Background

In hospital orthopedics, fracture patient is the most common, just adopts fastening screw to carry out internal fixation to fracture patient usually, and fastening screw is the bone fixing device commonly used in orthopaedic surgery, and the present fastening screw that uses has not enough, and in the process of screwing the screw, the extrusion force that the screw point and skeleton contact produced brings huge misery for patient, how can screw the screw fast, shortens patient's misery time, designs and produces a medical science pressure release screw for orthopedics here, is used for convenient to use.

For example, patent No. CN201621371928.1 discloses a pressure release screw for orthopedics, including pin fin and screw body, the pin fin welding is on screw body top, the pin fin is the handstand toper, the pin fin lateral wall is provided with first external screw thread, open at pin fin top end face center has the cross recess, pin fin top fixed mounting has the hexagonal sleeve, screw body includes unthreaded smooth pole, inverts external screw thread, second external screw thread and self-tapping groove, unthreaded smooth pole sets up on screw body upper portion, the external screw thread is invertd and is set up at screw body middle part, second external screw thread sets up in screw body lower part, the self-tapping groove sets up in screw body bottom, the screw body lateral wall is opened there is the V word groove. The utility model discloses a pressure release screw for medical science orthopedics can implant fast, and can alleviate the misery of disease, simple and practical.

When the screw is detached in the document, the screw still needs to be rotated to be detached, the screw still can be in rotating friction contact with the bone, the bone is tightly supported and distended, the pain of a patient can be hard to endure, the comfort level is still poor, the rotating detachment process of the screw is complex and inconvenient, and the long detachment time can prolong the pain time of the patient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure release screw for orthopedics to the adoption screw that proposes in solving above-mentioned background art still need circle round the screw thread when dismantling, and the screw still can take place rotatory friction contact in the bone, causes the bone to prop tightly distending pain, and patient still can be painful intolerable, and the comfort level is still not good enough, and the screw thread of screw circles round and dismantles the loaded down with trivial details inconvenience of flow, and the longer problem that can prolong patient's painful time of dismantlement time.

In order to achieve the above object, the utility model provides a following technical scheme: a medical pressure relief screw for orthopedics comprises a threaded semicircular sleeve, a positioning lug, a threaded sleeve, a drill bit, a screw cap, a vertical insertion shaft rod and an inner hexagon bolt, wherein the two threaded semicircular sleeves are abutted together to form a complete screw; the two rows of positioning lug blocks on the left threaded semicircular sleeve and the two rows of positioning lug blocks on the right threaded semicircular sleeve are arranged in a vertically staggered manner; a threaded sleeve is supported and welded at the inner part of the top end of the right threaded semicircular sleeve; when the two threaded semicircular sleeves are butted and combined together, the left and right positioning lug blocks on the threaded semicircular sleeves are inserted together in a staggered manner; the bottoms of the two threaded semicircular sleeves are provided with a drill bit.

Preferably, two rows of positioning lugs are symmetrically supported on the left and right cross sections of the two threaded semicircular sleeves, and each row of positioning lugs is formed by arranging four positioning lugs.

Preferably, when the left and right four rows of positioning lugs are inserted together in a staggered manner, a gap is formed between the left two rows of positioning lugs and the right threaded semicircular sleeve, and a gap is also formed between the right two rows of positioning lugs and the left threaded semicircular sleeve.

Preferably, the nut is internally provided with a cross-shaped slot, the center of the cross-shaped slot is provided with a circular through slot, and the hexagon socket head cap screw passes through the central circular through slot to be screwed and locked on the threaded sleeve.

Preferably, the bottom of the nut cap is symmetrically supported downwards with two vertical insertion shaft rods, and the two vertical insertion shaft rods can correspondingly penetrate downwards through the left and right four rows of positioning lug blocks which are inserted and leaned together in an up-and-down staggered manner.

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

1. the whole screw of the utility model consists of two partial threaded semicircular sleeves, and because the gaps exist between the four positioning lugs on the left and the right and the two threaded semicircular sleeves on the left and the right, the two threaded semicircular sleeves and the threaded holes on the bone can generate movable gaps only by taking out the vertical insertion shaft rod and pulling and pushing the two threaded semicircular sleeves inwards, and the two threaded semicircular sleeves can be directly and sequentially lifted and taken out through the movable gaps, so that the step of loosening and unloading the rotary threads is saved, the bone friction and tension swelling pain caused by the screw and the screw spiral contact of the bone is avoided, the pain of a patient is reduced, and the process of disassembling and taking out the screw is quick and convenient;

2. the utility model discloses a screw is whole to be constituteed by two punishment body screw thread semicircle covers, and when dismantling the screw, the components of a whole that can function independently take out in proper order, and it is convenient to dismantle, and two perpendicular inserted shaft poles can insert two department screw thread semicircle covers and link together.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the present invention;

FIG. 3 is a disassembled schematic view of the present invention;

FIG. 4 is a schematic view of the structure of the two threaded semicircular sleeves of the present invention;

in the figure: 1. a threaded semi-circular sleeve; 101. positioning the ear block; 102. a threaded sleeve; 103. drilling a cone; 2. a nut; 201. a vertical insertion shaft rod; 3. and (4) an inner hexagon bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides an embodiment: a medical pressure relief screw for orthopedics comprises a threaded semicircular sleeve 1, a positioning lug 101, a threaded sleeve 102, a drill bit 103, a screw cap 2, a vertical insert shaft rod 201 and an inner hexagon bolt 3, wherein the two threaded semicircular sleeves 1 are abutted together to form a complete screw; the two rows of positioning lugs 101 on the left threaded semicircular sleeve 1 and the two rows of positioning lugs 101 on the right threaded semicircular sleeve 1 are arranged in a vertically staggered manner; a threaded sleeve 102 is supported and welded in the top end of the right threaded semicircular sleeve 1; when the two threaded semicircular sleeves 1 are butted and combined together, the left and right four rows of positioning lug blocks 101 on the threaded semicircular sleeves are inserted together in an up-and-down staggered manner; the bottom parts of the two threaded semicircular sleeves 1 are provided with a drill bit 103 in a forming way.

Furthermore, two rows of positioning lug blocks 101 are symmetrically supported on the left and right cross sections of the two threaded semicircular sleeves 1, each row of positioning lug blocks 101 is formed by arranging four positioning lug blocks 101, the whole screw is formed by two split threaded semicircular sleeves 1, and when the screw is disassembled, the split threaded semicircular sleeves can be taken out in sequence, so that the disassembly is convenient.

Further, when the left and right four rows of positioning lug blocks 101 are inserted together in a staggered manner, a gap exists between the left two rows of positioning lug blocks 101 and the right threaded semicircular sleeve 1, and a gap also exists between the right two rows of positioning lug blocks 101 and the left threaded semicircular sleeve 1, because a gap exists between the left and right four rows of positioning lug blocks 101 and the left and right threaded semicircular sleeves 1, the screws can be directly lifted and taken out through the movable gap only by pulling out the vertical insertion shaft rod 201 and pulling and pushing the two threaded semicircular sleeves 1 inwards, so that the steps of loosening and disassembling the rotary threads are omitted, the bone friction and supporting swelling pain caused by the spiral contact of the screws and the bones are avoided, the pain of patients is reduced, and the process of disassembling and taking out the screws is rapid and convenient.

Furthermore, a cross-shaped slot is formed in the nut 2, a circular through groove is formed in the center of the cross-shaped slot, the hexagon socket head cap screw 3 penetrates through the central circular through groove to be screwed and locked on the threaded sleeve 102, the hexagon socket head cap screw 3 can tightly lock and connect the nut 2 and the two threaded semicircular sleeves 1 together, and the screwing force of the nut 2 is transmitted to the two threaded semicircular sleeves 1.

Furthermore, two vertical insertion shaft rods 201 are symmetrically supported downwards at the bottom of the nut 2, the two nut 2 are inserted downwards, the two vertical insertion shaft rods 201 can correspondingly penetrate through the four rows of left and right positioning lug blocks 101 which are inserted and leaned together in an up-and-down staggered mode, and the two vertical insertion shaft rods 201 can insert and connect the two threaded semicircular sleeves 1 together.

The working principle is as follows: according to the screw disassembling process, firstly, a wrench is clamped to fix a screw cap 2, then an inner hexagon bolt 3 is disassembled and taken out, then the screw cap 2 and a vertical inserting shaft rod 201 are lifted and taken out together, at the moment, two threaded semicircular sleeves 1 lose positioning, and because gaps exist between a left positioning lug block 101, a right positioning lug block 101, a left threaded semicircular sleeve 1 and a right threaded semicircular sleeve 1, the vertical inserting shaft rod 201 only needs to be pulled out, the two threaded semicircular sleeves 1 are pulled and pushed to the side, a movable gap can be generated between the two threaded semicircular sleeves 1 and a threaded hole in a bone, and the screw can be directly lifted and taken out through the movable gap.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a pressure release screw for medical orthopedics which characterized in that: the bolt comprises a threaded semicircular sleeve (1), a positioning lug block (101), a threaded sleeve (102), a drill cone (103), a screw cap (2), a vertical insertion shaft rod (201) and an inner hexagonal bolt (3), wherein the two threaded semicircular sleeves (1) are abutted together to form a complete bolt; two rows of positioning lugs (101) on the left threaded semicircular sleeve (1) and two rows of positioning lugs (101) on the right threaded semicircular sleeve (1) are arranged in a vertically staggered manner; a threaded sleeve (102) is supported and welded inside the top end of the right threaded semicircular sleeve (1); when the two threaded semicircular sleeves (1) are butted and combined together, the left and right four rows of positioning lug blocks (101) on the threaded semicircular sleeves are inserted together in a staggered manner from top to bottom; the bottoms of the two threaded semicircular sleeves (1) are respectively provided with a drill bit (103).

2. The medical pressure relief screw for orthopedics department as claimed in claim 1, wherein: two rows of positioning lugs (101) are symmetrically supported on the left and right cross sections of the two threaded semicircular sleeves (1), and each row of positioning lugs (101) is formed by arranging four positioning lugs (101).

3. The medical pressure relief screw for orthopedics department as claimed in claim 1, wherein: when the left and right four rows of positioning lug blocks (101) are inserted and leaned together in a staggered mode, a gap exists between the left two rows of positioning lug blocks (101) and the right threaded semicircular sleeve (1), and a gap also exists between the right two rows of positioning lug blocks (101) and the left threaded semicircular sleeve (1).

4. The medical pressure relief screw for orthopedics department as claimed in claim 1, wherein: the nut (2) is internally provided with a cross-shaped slot, the center of the cross-shaped slot is provided with a circular through slot, and the inner hexagonal bolt (3) passes through the central circular through slot to be screwed and locked on the threaded sleeve (102).

5. The medical pressure relief screw for orthopedics department as claimed in claim 1, wherein: two vertical insertion shaft rods (201) are symmetrically and downwards supported at the bottoms of the screw caps (2), the two screw caps (2) are inserted into the two vertical insertion shaft rods (201) and can correspondingly penetrate through the left and right four rows of positioning lug blocks (101) which are inserted together in an up-and-down staggered mode.