CN108324357B

Movatterモバイル変換

Info

Publication number: CN108324357B
Application number: CN201810207686.XA
Authority: CN
Inventors: 熊鹰
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-14
Filing date: 2018-03-14
Publication date: 2024-04-30
Anticipated expiration: 2038-03-14
Also published as: CN108324357A

Abstract

The invention discloses a minimally invasive drifting fixing bracket device which comprises a rod, a nail and a clamping block, wherein the nail comprises a one-way screw, a universal nail, a jackscrew, a clamping cap and a clamping ring, the clamping block comprises an end clamping body and a clamping body, the end clamping body comprises a palm-type end clamping body and a shuttle-type end clamping body, at least 1 clamping hole and a screw hole are formed in the clamping body, at least 1 clamping hole and a shallow screw hole are formed in the shuttle-type end clamping body, at least 1 clamping hole, a shallow screw hole and a screw hole are formed in the palm-type end clamping body, a rod hole is formed in at least one side of the plane of the clamping block in the axial direction for the rod to pass through, and the nail and the clamping holes, the shallow screw hole and the screw hole are mutually matched to lock the rod on the end clamping body and the clamping body to form the minimally invasive drifting fixing bracket. The device provides a fracture skin external fixation mode, and this fixed mode adopts minimally invasive technique, and is less and fixed more firm to fracture patient's wound, can conveniently take off this fixing device after the healing, greatly lightens the secondary injury to the patient.

Description

Minimally invasive drifting fixed support device

Technical Field

The invention relates to the field of medical instruments, in particular to a minimally invasive drifting fixed support device.

Background

In recent years, the fracture fixation technology and the orthopedic fixation technology of the human body are rapidly developed, but the development is more concentrated in the aspects of internal fixation and external fixation technology, the drift fixation or subcutaneous fixation technology has not been innovated and clinically applied, and no good instrument is used for supporting the development of the orthopedic minimally invasive technology.

Disclosure of Invention

In order to solve the problems, the invention designs a minimally invasive drift fixing bracket device, the structure of which is specially designed for drift fixing and minimally invasive technology, and can provide a better treatment scheme for clinic and fill the problem of the shortage of the current orthopedic internal and external fixing technology.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:

A minimally invasive drift fixed bolster device, characterized in that: including stick, nail and fixture block, the nail include one-way screw, universal nail, jackscrew, card cap and snap ring, the fixture block include the end card body and the card body, the end card body includes the palm end card body and the shuttle type end card body, be equipped with at least 1 draw-in hole and screw hole on the card body, be equipped with at least 1 draw-in hole, shallow screw hole and screw hole on the palm type end card body, open at least one side in fixture block main part plane axial has the stick hole to supply the stick to pass, nail and draw-in hole, shallow screw hole and screw hole mutually support the stick locking on the end card body and the card body and constitute the wicresoft drift fixed bolster.

The rod is a straight rod with grooves in a through length mode, the unidirectional screw and the universal nail are composed of a screw cap and a screw body, the screw cap of the unidirectional screw is a structural body with threads on the outer surface and a spherical surface at the transition surface of the screw body, the screw body is a half-thread structure with external threads below the middle part, the screw cap of the universal nail is smooth and spherical, double-line external threads are arranged on the outer surface of a jackscrew, a spherical groove consistent with the shape of the screw cap of the universal screw is arranged at the bottom of the jackscrew, the clamping cap consists of a clamping portion and a threaded connection portion, the bottom surface of the clamping portion is spherical, the outer surface of the threaded connection portion is provided with external threads, the clamping ring is of a hollow annular structure, the inner wall of the clamping ring is provided with internal threads consistent with the external threads of the clamping cap threaded connection portion, rotation stopping protrusions are symmetrically arranged on the outer wall of the clamping ring, and one side surface or two symmetrical side surfaces of the outer wall of the clamping ring are provided with arc grooves; the top of the unidirectional screw, the universal screw, the jackscrew and the clamping cap is provided with a plum blossom-shaped socket.

The unidirectional screw and the universal nail are respectively a solid unidirectional screw, a hollow unidirectional screw, a solid universal nail and a hollow universal nail.

The number of the clamping bodies according to the rod holes and the nail holes can be divided into a double-rod clamping body series and a single-rod clamping body series, the clamping bodies of the double-rod clamping body series are more than the single-rod clamping bodies of the single-rod clamping body series by one rod hole in the axial direction of the main body, the double-rod clamping body series comprises a double-rod single-nail clamping body, a double-rod double-nail clamping body and a double-rod four-nail clamping body, the single-rod clamping body series comprises a single-rod single-nail clamping body, a single-rod double-nail clamping body and a single-rod four-nail clamping body, two through rod holes are arranged in the axial direction of the main body of the double-rod single-nail clamping body, the main body plane of the double-rod single-nail clamp body is provided with 1 clamping hole and 1 screw hole, the main body plane of the double-rod double-nail clamp body is provided with 2 clamping holes and 2 screw holes, the clamping holes and the screw holes are crossed or symmetrically arranged, the main body plane of the double-rod four-nail clamp body is provided with 4 clamping holes and 4 screw holes, and the clamping holes and the screw holes are crossed or the 2 clamping holes and the 2 screw holes are crossed and symmetrically arranged on the other half main body plane of the clamp body.

A cross hole communicated with the rod hole is formed in one side of the clamping hole, a pin hole is formed in the upper section of the parallel side of the clamping hole and the rod hole, a pin shaft is inserted into the pin hole, a rotation stopping groove consistent with a rotation stopping protrusion of the clamping ring is formed in the lower section of the clamping hole, double-line internal threads are engraved on the inner wall of the upper section of the screw hole, the lower section of the screw hole is a ball socket, double-line internal threads are engraved on the inner wall of the shallow screw hole, and the bottom outlet of the shallow screw hole is spherical; the screw connection part of the clamping cap is in threaded connection with the clamping ring and then fixed in the clamping hole, the nail body of the unidirectional screw is sleeved with the gasket and then fixed in the screw hole, the jackscrew is used for fixing the universal screw in the screw hole through threaded connection with the screw hole, and the unidirectional screw is fixed in the screw hole or the shallow screw hole through double-line threads of the nail cap.

The invention has the beneficial effects that: the device provides a fracture skin external fixation mode, and this fixed mode adopts minimally invasive technique, and is less and fixed more firm to fracture patient's wound, can conveniently take off this fixing device after the healing, greatly lightens the secondary injury to the patient, can provide better treatment scheme for the clinic simultaneously, fills current orthopedics inside and outside fixed technology not enough problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall assembly structure of a minimally invasive drift fixation support apparatus;

FIG. 2 is a schematic view of the construction of the one-way screw;

FIG. 3 is a schematic view of the structure of the gasket;

FIG. 4 is a schematic view of the one-way screw and washer assembly;

FIG. 5 is a schematic view of the structure of the cartridge;

FIG. 6 is a schematic diagram of the snap ring structure;

FIG. 7 is a schematic diagram of the assembly structure of the clamping cap and the clamping ring;

FIG. 8 is a schematic illustration of the structure of the jack screw;

FIG. 9 is a schematic view of the structure of the universal nail;

FIG. 10 is a schematic view of the assembly of the staple and the jackscrew;

FIG. 11 is a schematic cross-sectional view of the cannulated unidirectional screw;

FIG. 12 is a schematic view of the cross-sectional assembly of the hollow staple and the jackscrew;

FIG. 13 is a schematic diagram of the structure of the double-rod single-nail shuttle-type end clamp I;

FIG. 14 is a schematic diagram of the assembly structure of the double-rod single-nail shuttle-type end clamp I;

FIG. 15 is a schematic view of the structure of the double-rod double-nail shuttle-type end clamp I;

FIG. 16 is a schematic view of the assembly structure of the dual-rod dual-pin shuttle-type end clamp I;

FIG. 17 is a schematic cross-sectional view of the two-bar two-pin shuttle head cartridge I;

FIG. 18 is a schematic view of the assembled sectional structure of the double-rod double-nail shuttle-type end clamp I;

FIG. 19 is a schematic view of the structure of the double-rod single-nail shuttle-type end clamp II;

FIG. 20 is a schematic diagram of the assembly structure of the double-rod single-nail shuttle-type end clamp II;

FIG. 21 is a schematic view of the structure of the double-rod double-nail shuttle-type end clamp II;

FIG. 22 is a schematic diagram of the assembly structure of the double-rod double-nail shuttle-type end clamp II;

FIG. 23 is a schematic view of the structure of the two-bar single-nail palm type end clamp I;

FIG. 24 is a schematic view of the assembly structure of the double-rod single-nail palm type end clamp I;

FIG. 25 is a schematic view of the structure of the two-bar two-nail palm type end clip body I;

FIG. 26 is a schematic diagram of the assembly structure of the two-bar two-nail palm type end clamp I;

FIG. 27 is a schematic view of the structure of the two-bar single-nail palm type end clip body II;

FIG. 28 is a schematic diagram of the assembly structure of the double-rod single-nail palm type end clamp II;

FIG. 29 is a schematic view of the structure of the two-bar two-nail palm type end clip body II;

FIG. 30 is a schematic diagram of the assembly structure of the two-bar two-nail-palm type end clamp II;

FIG. 31 is a schematic view of the structure of the dual-rod single-pin cartridge;

FIG. 32 is a schematic diagram of the assembly structure of the dual-rod single-pin cartridge;

FIG. 33 is a schematic view of the structure of the dual-rod dual-pin cartridge;

FIG. 34 is a schematic view of the assembly structure of the dual-rod dual-pin cartridge;

FIG. 35 is a schematic view of a first variation of the dual-rod dual-pin cartridge;

FIG. 36 is a schematic view of a first modified assembly structure of the dual-rod dual-pin cartridge;

FIG. 37 is a schematic view of the structure of the dual-rod four-pin cartridge;

FIG. 38 is a schematic view of the assembly structure of the dual-rod four-pin cartridge;

FIG. 39 is a schematic view of the structure of the single-rod single-pin cartridge;

FIG. 40 is a schematic view of the assembly structure of the single-rod single-pin cartridge;

FIG. 41 is a schematic view of the structure of the single-rod double-pin cartridge;

FIG. 42 is a schematic view of the assembly structure of the single-rod double-pin cartridge.

In the drawings, the list of components represented by the various numbers is as follows:

1-bar, 2-universal nail, 3-clamp body, 4-palm end clamp body, 5-shuttle end clamp body, 6-hook, 7-clamp hole, 8-screw hole and 9-shallow screw hole; the device comprises a 21-jackscrew, a 22-clamping cap, a 23-clamping ring, a 24-one-way screw, a 25-gasket, a 26-pin shaft, a 51-rod hole, a 71-cross hole, a 72-rotation stopping groove and a 81-ball socket; 201-injection channel, 221-clamping part, 222-screw connection part, 231-rotation stopping protrusion, 232-knurled arc groove, 241-nut, 242-nail body and 251-clamping surface.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1-12, a minimally invasive drift fixing bracket device comprises a rod 1, a nail and a clamping block, wherein the nail comprises a one-way screw 24, a universal screw 2, a jackscrew 21, a clamping cap 22 and a clamping ring 23, the clamping block comprises an end clamping body and a clamping body 3, the end clamping body comprises a palm end clamping body 4 and a shuttle end clamping body 5, at least 1 clamping hole 7 and a screw hole 8 are formed in the clamping body 3, at least 1 clamping hole 7 and a shallow screw hole 9 are formed in the shuttle end clamping body 5, at least 1 clamping hole 7, a shallow screw hole 9 and a screw hole 8 are formed in the palm end clamping body 4, a rod hole 51 is formed in at least one side of the main body plane of the clamping block 7 in the axial direction for the rod 1 to penetrate, and the nail is matched with the clamping holes 7, the shallow screw hole 9 and the screw hole 8 to lock the rod 1 on the end clamping body and the clamping body 3 to form the minimally invasive drift fixing bracket.

The rod 1 is a straight rod with grooves in a through length mode, the unidirectional screw 24 and the universal screw 2 are composed of a screw cap 241 and a screw body 242, the screw cap 241 of the unidirectional screw 24 is a structural body with threads on the outer surface and a spherical surface at the transition surface with the screw body 242, the screw body 242 is a half-thread structure with external threads below the middle part, the screw cap 241 of the universal screw 2 is smooth spherical, the outer surface of the jackscrew 21 is provided with double-line external threads, the bottom of the jackscrew 21 is provided with spherical grooves consistent with the shape of the screw cap of the universal screw 2, the clamping cap 22 is composed of a clamping part 221 and a threaded part 222, the bottom surface of the clamping part 221 is spherical, the outer surface of the threaded part 222 is provided with external threads, the clamping ring 23 is of a hollow annular structure, the inner wall of the clamping ring 23 is provided with internal threads consistent with the external threads of the threaded part of the clamping cap 22, the outer wall of the clamping ring 23 is symmetrically provided with rotation stopping bulges 231, and one side surface or two symmetrical side surfaces of the outer wall of the clamping ring are provided with arc grooves 232; the tops of the unidirectional screw 24, the universal nail 2, the jackscrew 21 and the clamping cap 22 are provided with plum blossom-shaped sockets.

The unidirectional screw 24 and the universal nail 2 are respectively a solid unidirectional screw, a hollow unidirectional screw, a solid universal nail and a hollow universal nail.

As shown in fig. 31-42, the number of the card body 3 according to the number of the rod holes and the nail holes can be divided into a double-rod card body series and a single-rod card body series, the card body of the double-rod card body series is provided with one more rod hole in the main body plane axial direction than the single-rod card body of the single-rod card body series, the double-rod card body series comprises a double-rod single nail card body, a double-rod double-nail card body and a double-rod four-nail card body, the single-rod card body series comprises a single-rod single-nail card body, a single-rod single-nail card body and a single-rod four-nail card body, the main body plane axial direction of the double-rod single-nail card body is provided with two through rod holes 51, the main body plane of the double-rod single-nail card body is provided with 1 card hole 7 and 1 screw hole 8, the main body plane of the double-rod double-nail card body is provided with 2 card holes 7 and 2 screw holes 8, the card holes 7 and the screw holes 8 are crossed or symmetrically arranged, the main body plane of the double-rod four-nail card body is provided with 4 card holes 7 and 4 screw holes 8, the card holes 7 and 8 are crossed with the 2 card holes 7 and 8 or the 2 card holes 7 and the 2 are crossed with the 2 holes 7 and the 2 card holes 7 and the 2 are arranged on the main body plane mirror image plane.

A cross hole 71 communicated with the rod hole 51 is formed in one side of the clamping hole 7, a pin hole is formed in the upper section of the parallel side of the clamping hole 71 and the rod hole 51, a pin shaft 26 is inserted into the pin hole, a rotation stopping groove consistent with the rotation stopping protrusion 231 of the clamping ring 23 is formed in the lower section of the pin hole, double-line internal threads are engraved on the inner wall of the upper section of the screw hole 8, a ball socket 81 is arranged in the lower section of the screw hole 8, double-line internal threads are engraved on the inner wall of the shallow screw hole 9, and the bottom outlet of the shallow screw hole 9 is spherical; the screw portion 221 of the clip cap 22 is screwed with the clip ring 23 and then fixed in the clip hole 7, the shank of the one-way screw 24 is sleeved with the washer 25 and then fixed in the screw hole 8, the top thread 21 is screwed with the screw hole 8 to fix the universal screw 2 in the screw hole 8, and the one-way screw 24 is screwed in the shallow screw hole 9.

The assembly and working principle of the device are as follows: aiming at different types of fracture, the device is assembled, the rod 1 is inserted into the rod hole 51 of the clamping body, the clamping body 3 is slid, the clamping cap 22 is screwed at a proper position, the device is arranged at two ends of the fracture in a subcutaneous or external manner, firstly, an electric drill is used for drilling holes along the screw holes 8, the universal nail 2 is screwed in, the distance or the height between the clamping body 3 and bone can be controlled manually, then the jackscrew 21 is screwed in, the jackscrew 21 is screwed after the fracture is restored, and finally, the universal nail 2 or the unidirectional screw 24 is respectively arranged.

In the operation process, the clamping ring is placed into the clamping hole 7, the pin shaft 26 is inserted along the pin hole so as to prevent the clamping ring 23 from being removed, the ball socket at the bottom of the clamping hole 7 prevents the clamping ring 23 from being removed, and when the rotation stopping protrusion 231 of the clamping ring 23 is placed into the rotation stopping groove, the clamping ring 23 can be effectively prevented from rotating. At this time, the rod 1 is inserted into the rod hole 51 and screwed into the clip cap 22; when the snap cap 22 is screwed in, the knurled arc groove 232 of the snap ring and the snap holding portion 221 of the snap cap simultaneously press the rod 1 through the cross hole 71, thereby locking the rod 1 in the rod hole 51 to achieve connection of the rod 1 with the snap body 3.

The universal nail 2 is screwed into the fracture through the screw hole 8, the spherical surface at the bottom of the nail cap 241 is contacted with the ball socket surface at the bottom surface of the screw hole 8, and the screw is blocked from being transmitted out of the screw hole, when the jackscrew 21 is screwed into the screw hole 8, the ball socket at the bottom of the jackscrew 21 presses the spherical surface at the top of the nail cap of the universal nail, so as to lock the universal nail 2.

When the unidirectional screw 24 is screwed into bone through the screw hole 8, the external thread of the nut 241 is screwed into the screw hole 8 at the same time, the spherical surface of the bottom of the nut is blocked by the screw hole 8 ball socket, so as to prevent the screw from penetrating out of the screw hole, and the external thread of the nut and the internal thread of the screw hole 8 are matched to form the locking connection of the nail 1 and the clamp body 3.

The washer 25 mainly increases the height of the one-way screw cap 241 and increases the locking strength, and the knurled arc groove 232 of the snap ring 23 and the knurling of the upper are provided to increase the friction between metals to increase the locking strength.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A minimally invasive drift fixed bolster device, characterized in that: the clamp comprises a rod, a nail and a clamping block, wherein the nail comprises a one-way screw, a universal nail, a jackscrew, a clamping cap and a clamping ring, the clamping block comprises an end clamping body and a clamping body, the end clamping body comprises a palm end clamping body and a shuttle-type end clamping body, at least 1 clamping hole and a screw hole are formed in the clamping body, at least 1 clamping hole and a shallow screw hole are formed in the shuttle-type end clamping body, at least 1 clamping hole, a shallow screw hole and a screw hole are formed in the palm-type end clamping body, a rod hole is formed in at least one side of the plane of the main body of the clamping block in the axial direction for the rod to pass through, and the nail is matched with the clamping hole, the shallow screw hole and the screw hole to lock the rod on the end clamping body and the clamping body to form a minimally invasive drift fixing bracket;

The rod is a straight rod with grooves in a through length mode, the unidirectional screw and the universal nail are composed of a screw cap and a screw body, the screw cap of the unidirectional screw is a structural body with double-line threads on the outer surface and a spherical surface on the transition surface of the screw body, the screw body is of a half-thread structure with external threads below the middle part, the screw cap of the universal nail is smooth spherical, double-line external threads are arranged on the outer surface of the jackscrew, a spherical groove consistent with the shape of the screw cap of the universal screw is arranged at the bottom of the jackscrew, the clamping cap consists of a clamping and holding part and a threaded connection part, the bottom surface of the clamping and holding part is spherical, the outer surface of the threaded connection part is provided with external threads, the clamping ring is of a hollow annular structure, the inner wall of the clamping ring is provided with internal threads consistent with the external threads of the clamping cap threaded connection part, the outer wall of the clamping ring is symmetrically provided with rotation stopping protrusions, one side surface or two symmetrical side surfaces of the outer wall of the clamping ring are provided with arc grooves, and the arc grooves extend along the up-down direction of the clamping ring; the top of the unidirectional screw, the universal screw, the jackscrew and the clamping cap is provided with a plum blossom-shaped socket;

A cross hole communicated with the rod hole is formed in one side of the clamping hole, a pin hole is formed in the upper section of the parallel side of the clamping hole and the rod hole, a pin shaft is inserted into the pin hole, a rotation stopping groove consistent with a rotation stopping protrusion of the clamping ring is formed in the lower section of the pin hole, double-line internal threads are engraved on the inner wall of the upper section of the pin hole, a ball socket is arranged in the lower section of the pin hole, double-line internal threads are engraved on the inner wall of the shallow pin hole, and the bottom outlet of the shallow pin hole is spherical; the screw connection part of the clamping cap is in threaded connection with the clamping ring and then fixed in the clamping hole, the nail body of the unidirectional screw is sleeved with the gasket and then fixed in the screw hole, the jackscrew is used for fixing the universal screw in the screw hole through threaded connection with the screw hole, and the unidirectional screw is fixed in the screw hole or the shallow screw hole through double-line threads of the nail cap.

2. A minimally invasive drift fixation support apparatus according to claim 1, characterized in that: the unidirectional screw and the universal screw are respectively a solid unidirectional screw and a solid universal screw.

3. A minimally invasive drift fixation support apparatus according to claim 1, characterized in that: the unidirectional screw and the universal screw are respectively hollow unidirectional screw and hollow universal screw.