CN107088084B - Adjustable deformed hand orthosis - Google Patents

Abstract

The invention relates to a shape correction treatment instrument for deformed hands, belonging to the technical field of medical devices, in particular to an adjustable deformed hand orthosis. Solve the problem of the lack of mature and standardized deformed hand traction devices. Including several Kirschner wires with one end vertically embedded in the metacarpal bone, arched or semi-circular support pieces fixed to the other end of each Kirschner wire perpendicular to the back of the hand, one end passing through and being fixed on the support piece, and the other end extending to the fingers The hollow support rod above and parallel to the back of the hand is fixed on the backstop hinge on the back of the support piece; it also includes a pull wire, one end of the pull wire passes through the hollow support rod and is fixed and wound on the backstop hinge, and the other end is connected in series The tension sensor or the spring scale is connected with a hook or a fingertip cover, and the hook is hooked with a connector embedded in the fingertip, or directly connected to the fingertip through the fingertip cover. The numerical value and direction of the pulling force generated by the invention are stable and adjustable, and can provide accurate numerical values for subsequent treatment and clinical research.

Description

Adjustable deformed hand orthosis

The invention relates to a shape correction treatment instrument for deformed hands, particularly deformed hands caused by post-burn scar contracture, belonging to the technical field of medical devices, and in particular to an adjustable deformed hand orthosis.

Background technique

Orthodontic treatment of claw-shaped hands after burns is complicated, the course of treatment is long, and the surgical correction of the deformity is incomplete and prone to recurrence. When the scar is released by surgery, it is also easy to cause new scar formation; if there is a need for skin grafting, the retraction rate of the skin graft is as high as 30-50%, and the contracture of tendons, joint capsules, ligaments, blood vessels, and nerves is difficult to be safe and effective through surgery. release. In response to the above problems, some scholars quoted the classic bone distraction theory, and applied bone distraction technology to the treatment of burnt claw hands, and achieved certain results.

At present, there is a lack of mature standardized traction devices in the market. In clinical treatment, self-made simple elastic braces are mostly used. The elastic force of the medical Kirschner wire after bending is used to provide continuous traction, or the traction provided by other elastic materials to correct deformed parts. Although these traction devices can achieve a certain therapeutic effect, they are not suitable for general promotion due to the personal experience of doctors. In addition, the treatment cycle is long, and plastic deformation of the selected elastic materials is inevitable, and the key parameters are bound to drift, which affects the therapeutic effect. Moreover, the construction process of the brace is arbitrary, which is contrary to the spirit of precision medicine.

SUMMARY OF THE INVENTION

The invention aims to solve the problem of lack of mature and standardized deformed hand traction device in current clinical treatment, and provides an adjustable deformed hand orthosis, which can adjust treatment parameters (such as the size and direction of traction force) at any time during the treatment process. Clinical standard treatment and scientific research provide basic data.

The present invention is realized by adopting the following technical scheme: an adjustable deformed hand orthosis comprises several Kirschner wires with one end vertically embedded in the metacarpal bone, and arch or semicircular arches or semicircles fixed on the other end of each Kirschner wire in a state perpendicular to the back of the hand. Support sheet, one end is passed through and fixed on the support sheet, and the other end is extended to the hollow support rod above the fingers and parallel to the back of the hand, and the backstop hinge is fixed on the back of the support sheet (the side facing the wrist); it also includes pull wires, pull wires One end passes through the hollow support rod and is fixed and wound on the backstop hinge, and the other end is connected with a tension sensor or a spring scale, and then a hook or fingertip cover is connected. Pins) hooked, or directly attached to the fingertips through the fingertip sleeves. When in use, the tension of the pulling wire can be adjusted by turning the backstop hinge device to realize the adjustment of the pulling force of the fingertip; the pulling force sensor (through the configuration of other well-known display devices connected with the pulling force sensor) or the spring balance scale shows the pulling force, so as to achieve The purpose of precise quantification of traction. Among them, the backstop hinge adopts various structures known in the prior art.

The hollow support rod is composed of a front hollow fixed rod, a hollow central adjustment rod and a hollow rear adjustment rod. One end of the front hollow fixed rod passes through and is fixed on the support sheet, and one end of the hollow central adjustment rod is vertical. The direction can be adjusted to be hinged and fastened with the other end of the hollow fixing rod, and one end of the hollow rear adjusting rod is hinged and fastened with the other end of the hollow central adjusting rod in a horizontal direction. In this way, the hollow central adjusting rod realizes the vertical tension The adjustment of the direction, the hollow rear adjustment rod realizes the adjustment of the horizontal direction of the tension. Or, the hollow support rod is composed of a front hollow fixed rod, a hollow central adjustment rod and a hollow rear adjustment rod, one end of the front hollow fixed rod passes through and is fixed on the support sheet, and one end of the hollow central adjustment rod The other end of the hollow fixing rod is hinged and fastened in a horizontally adjustable manner, and one end of the hollow rear adjusting rod is vertically adjustable and hinged and fastened with the other end of the hollow central adjusting rod; in this way, the hollow central adjusting rod realizes the tension force For horizontal adjustment, the hollow rear adjustment rod realizes the vertical adjustment of tension.

Based on the theory of tissue traction, the present invention provides a continuous and arbitrarily adjustable traction force, and promotes the deformed part to gradually recover or approach the normal shape, so as to achieve the purpose of treatment. The numerical value and direction of the pulling force generated by the invention are stable and adjustable. Compared with similar existing products, it has stable and controllable structure and reliable data, and can provide accurate values for subsequent treatment and clinical research.

Description of drawings

1 is a schematic perspective view of the structure of the present invention;

Fig. 2 is the structural representation of hollow fixed rod;

Figure 3 is a schematic structural diagram of a hollow central adjustment rod;

Figure 4 is a schematic structural diagram of a hollow rear adjustment rod;

Fig. 5 is the structural perspective view of the backstop hinge device;

Figure 6 is a front view of the structure of the backstop hinge;

FIG. 7 is a top view of FIG. 6 .

In the figure: 1- support piece, 2- backstop hinge, 3- pull wire, 4- tension sensor or spring balance, 5- hook or fingertip cover, 6- support hole, 7- hollow fixing rod, 8- hollow center Adjusting rod, 9- Hollow rear adjusting rod, 21- Back plate, 22- Support plate, 23- Hinge shaft, 24- Back check disc, 25- Guide rod, 26- Slide block, 27- Back stop pin, 28- knob.

Detailed ways

Example 1

Adjustable deformed hand orthosis, including a number of Kirschner wires (not shown in Figure 1, which are commonly used in clinical practice) with one end vertically embedded in the metacarpal bone, and an arched or Semi-circular support piece 1, one end passes through and is fixed on the support piece 1, the other end extends above the fingers and is parallel to the hollow support rod of the back of the hand, and is fixed on the back of the support piece 1 (the side facing the wrist) The backstop hinge line It also includes a pulling wire 3, one end of the pulling wire 3 passes through the hollow support rod and is fixed and wound on the backstop hinge device 2, and the other end is connected with the tension sensor 4 in series with a hook 5, and the hook is embedded in the fingertip. The inner connecting piece (such as K-wire) is hooked. In specific implementation, one end of the hollow support rod is provided with a thread, and the threaded end passes through the support sheet 1 and then is screwed with a nut, so as to realize the fixed connection between one end of the hollow support rod and the support sheet 1 . The support sheet 1 is provided with support holes 6 at intervals. There are bolts in the support holes 6, and nuts are screwed on the bolts. Fixing between support sheets.

The hollow support rod is composed of a front hollow fixed rod 7, a hollow central adjustment rod 8 and a hollow rear adjustment rod 9. One end of the front hollow fixed rod 7 passes through and is fixed on the support sheet 1, and the hollow central One end of the adjusting rod 8 is hinged and fastened with the other end of the hollow fixing rod 7 in a vertically adjustable manner, and one end of the hollow rear adjusting rod 9 is hinged and fastened with the other end of the hollow central adjusting rod 8 in a horizontal direction adjustable; In this way, the hollow central adjustment rod 8 realizes the adjustment of the vertical direction of the pulling force, and the hollow rear adjustment rod 9 realizes the adjustment of the horizontal direction of the pulling force. In the specific implementation, the hinged ends of the hollow fixing rod 7 and the hollow central adjusting rod 8 are respectively provided with vertical rib plates with threaded holes, and horizontal fastening bolts are pierced on the vertical rib plates with threaded holes; The hinged ends of the middle adjusting rod 8 and the hollow rear adjusting rod 9 are provided with horizontal rib plates with threaded holes, and vertical fastening bolts are pierced on the horizontal rib plates with threaded holes, so as to realize the mutual connection. Hinged and fastened.

The backstop hinge 2 includes a back plate 21, a support plate 22 vertically fixed on both ends of the back plate, and a hinge shaft 23 supported on the support plate at both ends. The threaded end of the support rod is clamped by the nut on the threaded end, so as to realize the fixation of the backstop hinge on the support sheet 1; The stop plate 24 and the backstop plate 24 are evenly distributed with pin holes on the disk surface. A guide rod 25 is fixed on the support plate 22 on one side. The backstop pin 27 is matched with the pin hole on the disc 24 . Pull out the sliding block 26 so that the backstop pin 27 on it is separated from the pin hole on the backstop disk 24, turn the hinge shaft 23 through the knob 28, and then pull and close the sliding block 26, so that the backstop pin 27 on the backstop is inserted into the counterclockwise direction. The pin hole on the stop plate 24 can adjust the pulling force of the cable and realize the backstop.

Example 2

Orthotics for deformed hands, including a number of Kirschner wires with one end vertically embedded in the metacarpal bone (not shown in Figure 1, which are commonly used clinical medical devices), and an arch or semicircle fixed to the other end of each Kirschner wire perpendicular to the back of the hand A hollow support piece 1, one end passes through and is fixed on the support piece 1, the other end extends above the fingers and is parallel to the hollow support rod of the back of the hand, and the backstop hinge 2 is fixed on the back of the support piece 1 (the side facing the wrist). It also includes a pull wire 3, one end of the pull wire 3 passes through the hollow support rod and is fixed and wound on the hinge 2, and the other end is connected with a fingertip cover 5 after the spring balance 4 is connected in series, and the fingertip cover is directly connected to the fingertip. In specific implementation, one end of the hollow support rod is provided with a thread, and the threaded end passes through the support sheet 1 and then is screwed with a nut, so as to realize the fixed connection between one end of the hollow support rod and the support sheet 1 . The support sheet 1 is provided with support holes 6 at intervals. There are bolts in the support holes 6, and nuts are screwed on the bolts. Fixing between support sheets.

The hollow support rod is composed of a front hollow fixed rod 7, a hollow central adjustment rod 8 and a hollow rear adjustment rod 9. One end of the front hollow fixed rod 7 passes through and is fixed on the support sheet, and the hollow central adjustment rod One end of 8 is hinged and fastened with the other end of the hollow fixing rod 7 in a horizontal direction, and one end of the hollow rear adjusting rod 9 is hinged and fastened with the other end of the hollow central adjusting rod 8 in a vertical direction. The hollow central adjustment rod 8 realizes the adjustment of the horizontal direction of the pulling force, and the hollow rear adjustment rod 9 realizes the adjustment of the vertical direction of the pulling force. In the specific implementation, the hinged ends of the hollow fixing rod 7 and the hollow central adjusting rod 8 are respectively provided with horizontal rib plates with threaded holes, and vertical fastening bolts are pierced on the horizontal rib plates with threaded holes; The hinged end of the adjusting rod 8 and the hollow rear adjusting rod 9 is provided with a rib plate with threaded holes in the vertical direction, and the fastening bolts in the horizontal direction are pierced on the rib plate with threaded holes in the vertical direction, so as to realize the mutual connection. Hinged and fastened.

The structure of the backstop hinge 2 is the same as that of the first embodiment.

Claims (7)

1. a kind of adjustable lopsided hand orthosis, it is characterised in that several Kirschner wires of metacarpal bone are vertically embedded in including one end, with The arch or semicircle support chip (1) of each Kirschner wire other end are fixed on perpendicular to the back of the hand state, one end passes through and fixes to support On piece (1), the other end extend to the hollow support rails for above finger and being parallel to the back of the hand, be fixed on the check at support chip (1) back side It cuts with scissors line device (2)；Including bracing wire (3), one end of bracing wire (3) passes through hollow support rails and fixation, is wound in check hinge line device (2) On, hook or fingertip (5) are connected with after other end concatenation tension sensor or spring scale (4)；Hollow support rails are by front Hollow fixed link (7), hollow middle portion adjusting rod (8) and hollow rear portion adjusting rod (9) are constituted, the hollow fixed link (7) of front One end passes through and fixes on support chip (1), one end vertical direction of hollow middle portion adjusting rod (8) adjustably with hollow fixed link (7) other end is hinged and fastens, one end horizontal direction of hollow rear portion adjusting rod (9) adjustably with hollow middle portion adjusting rod (8) The other end it is hinged and fasten.

2. adjustable lopsided hand orthosis according to claim 1, it is characterised in that one end of hollow support rails is equipped with spiral shell Line, the end of thread are screwed with nut after passing through support chip (1), realize consolidating between hollow support rails one end and support chip (1) with this Fixed connection.

3. adjustable lopsided hand orthosis according to claim 2, it is characterised in that compartment of terrain is provided with branch on support chip (1) It supports hole (6), has bolt in supported hole (6), nut is screwed on bolt, the other end of Kirschner wire is inserted or is placed on bolt and by nut It clamps, the fixation between Kirschner wire and support chip is realized with this.

4. adjustable lopsided hand orthosis according to claim 1, it is characterised in that hollow fixed link (7) and hollow middle portion The hinged end of adjusting rod (8) is respectively equipped with the floor with threaded hole of vertical direction, is installed on the floor with threaded hole of vertical direction The fastening bolt of horizontal direction；The hinged end of hollow middle portion adjusting rod (8) and hollow rear portion adjusting rod (9) is equipped with horizontal direction Floor with threaded hole is installed with the fastening bolt of vertical direction on the floor with threaded hole of horizontal direction, is realized to each other with this Hingedly and fasten.

5. adjustable lopsided hand orthosis according to claim 1 or 2 or 3, it is characterised in that hollow support rails are by front Hollow fixed link (7), hollow middle portion adjusting rod (8) and hollow rear portion adjusting rod (9) constitute, the hollow fixed link (7) of front One end pass through and fix on support chip, one end horizontal direction of hollow middle portion adjusting rod (8) adjustably with hollow fixed link (7) other end is hinged and fastens, one end vertical direction of hollow rear portion adjusting rod (9) adjustably with hollow middle portion adjusting rod (8) The other end it is hinged and fasten.

6. adjustable lopsided hand orthosis according to claim 5, it is characterised in that hollow fixed link (7) and hollow middle portion The hinged end of adjusting rod (8) is respectively equipped with the floor with threaded hole of horizontal direction, is installed on the floor with threaded hole of horizontal direction The fastening bolt of vertical direction；The hinged end of hollow middle portion adjusting rod (8) and hollow rear portion adjusting rod (9) is equipped with vertical direction Floor with threaded hole is installed with the fastening bolt of horizontal direction on the floor with threaded hole of vertical direction, is realized to each other with this Hingedly and fasten.

7. adjustable lopsided hand orthosis according to claim 2 or 3, it is characterised in that it includes back that check, which cuts with scissors line device (2), Plate (21), the support plate (22) for being perpendicularly fixed at backboard both ends, both ends are supported in the hinge spool (23) in support plate, backboard (21) Top is provided with hole, which is placed on the end of thread of hollow support rails and is clamped by the nut on the end of thread, realizes that check is cut with scissors with this Fixation of the line device on support chip (1)；One end of hinge spool (23) is fixed with knob (28), is further fixed in hinge spool (23) inverse Only disk (24) are circumferentially evenly equipped with pin hole in the disk of check disk (24), are fixed with guide rod (25) in the support plate (22) of side, It is cased on guide rod (25) sliding block (26), there is the check pin (27) with the pin hole cooperation on check disk (24) on sliding block (26).