阅读说明：本技术 一种手指撑开外固定架 (Finger opening external fixing frame ) 是由 孙秀林 姚爱民 刘坤梅 陈聪聪 于 2020-06-18 设计创作，主要内容包括：本发明公开了一种手指撑开外固定架,属于骨科手术工具的技术领域。手指撑开外固定架包括第一支撑板、第二支撑板和螺纹调节件；第一支撑板用于固定并指中的其中一个手指,第二支撑板用于固定并指中的另一个手指；第一支撑板的内侧端与第二支撑板的内侧端转动连接,第一支撑板的外侧端与螺纹调节件的内侧端固定连接,第二支撑板的外侧端套接在螺纹调节件上,螺纹调节件的外侧端用于连接外部调节件。解决了常规并指分开术,手术切口及皮瓣控制不准确,导致切口缝合效果差,需要植皮修复的问题。本发明利用螺纹调节件对两个支撑板之间的距离调节,运用张应力法则,撑开并指,促进并指间皮肤再生,无需皮肤移植。(The invention discloses an external fixing frame for spreading fingers, belonging to the technical field of orthopedic operation tools. The finger-opening external fixing frame comprises a first supporting plate, a second supporting plate and a thread adjusting piece; the first support plate is used for fixing one finger in the finger and the second support plate is used for fixing the other finger in the finger and the finger; the inner side end of the first supporting plate is rotatably connected with the inner side end of the second supporting plate, the outer side end of the first supporting plate is fixedly connected with the inner side end of the threaded adjusting piece, the outer side end of the second supporting plate is sleeved on the threaded adjusting piece, and the outer side end of the threaded adjusting piece is used for being connected with an external adjusting piece. Solves the problems of poor incision suturing effect and skin grafting repair requirement caused by inaccurate control of an operation incision and a skin flap in the conventional surgery of separating the finger from the incision. The invention utilizes the thread adjusting piece to adjust the distance between the two supporting plates, utilizes the tensile stress rule to open and point, promotes the regeneration of the skin between the points without skin transplantation.)

1. The external fixing frame for finger opening is characterized by comprising a first supporting plate (100), a second supporting plate (200) and a thread adjusting piece (300);

the first support plate (100) is used for fixing one finger in the finger and the second support plate (200) is used for fixing the other finger in the finger and the finger;

the inner side end of the first support plate (100) is rotatably connected with the inner side end of the second support plate (200), the outer side end of the first support plate (100) is fixedly connected with the inner side end of the threaded adjusting piece (300), the outer side end of the second support plate (200) is sleeved on the threaded adjusting piece (300), and the outer side end of the threaded adjusting piece (300) is used for being connected with an external adjusting piece;

the external adjusting part can adjust the rotary motion of the threaded adjusting part (300), and the external end of the second supporting plate (200) moves close to or far away from the external end of the first supporting plate (100) through the threaded adjusting part (300).

2. The external finger-spreading fixture according to claim 1, wherein the first supporting plate (100) is provided with a first connecting hole (101) along its width direction, the first connecting hole (101) is used for guiding a metal spicule on one of the finger bones for positioning and pointing;

the second support plate (200) is provided with a second connecting hole (201) along the width direction of the second support plate, and the second connecting hole (201) is used for guiding, positioning and pointing a metal spicule on another finger bone.

3. The external finger distraction holder according to claim 2, wherein the first support plate (100) is provided with a first locking hole (102) along the thickness direction thereof, the first locking hole (102) is communicated with the first connection hole (101), a first locking member (103) is connected in the first locking hole (102), and the end of the first locking member (103) is used for locking a metal spicule in the first connection hole (101);

the second supporting plate (200) is provided with a second locking hole (202) along the thickness direction of the second supporting plate, the second locking hole (202) is communicated with the second connecting hole (201), a second locking piece (203) is connected in the second locking hole (202), and the tail end of the second locking piece (203) is used for locking a metal bone needle in the second connecting hole (201).

4. The external finger distraction holder according to claim 3, wherein the first connection holes (101), the first locking holes (102), the first locking members (103) are correspondingly plural in number;

the number of the second connecting holes (201), the second locking holes (202) and the second locking pieces (203) is correspondingly multiple.

5. The external finger distraction frame according to claim 3, wherein the number of the first connection holes (101) is two, both of the first connection holes (101) are in communication with the first locking hole (102), and the tip of the first locking member (103) can lock the metal spicules in both of the first connection holes (101) simultaneously;

the number of the second connecting holes (201) is two, the second connecting holes (201) are communicated with the second locking holes (202), and the tail ends of the second locking pieces (203) can lock two metal spicules in the second connecting holes (201) at the same time.

6. The external fixing frame for supporting fingers according to claim 5, wherein a first connecting seat (104) is arranged at the outer side end of the first supporting plate (100), the first connecting seat (104) is connected with a first steering block (107) through a first riveting piece (105) and a first blocking piece (106), and the first steering block (107) is fixedly connected with the inner side end of the threaded adjusting piece (300) through a second riveting piece (301);

the outer side end of the second supporting plate (200) is provided with a second connecting seat (204), the second connecting seat (204) is connected with a second steering block (207) through a second riveting piece (205) and a second blocking piece (206), and the second steering block (207) is sleeved on the threaded adjusting piece (300).

7. The external fixing frame for supporting fingers according to claim 6, wherein a first adjusting hole (108) is formed in the first steering block (107), a connecting rod (302) is arranged at the inner end of the threaded adjusting piece (300), and the connecting rod (302) is connected in the first adjusting hole (108) and fixed through the second riveting piece (301);

and a second adjusting hole (208) is formed in the second steering block (207), and a threaded section (303) of the threaded adjusting piece (300) is arranged in the second adjusting hole (208) in a penetrating manner.

8. The external finger-spreading fixture according to claim 7, wherein a first connecting shaft (109) is provided at the inner end of the first support plate (100), a second connecting shaft (209) is provided at the inner end of the second support plate (200), and the first connecting shaft (109) and the second connecting shaft (209) are connected by a fourth riveting member (210).

9. An external finger-spreading fixture according to claim 8, characterised in that the external end of the threaded adjuster (300) is provided with a polygonal hole (304), the polygonal hole (304) being used for connecting an external adjuster.

Technical Field

The invention relates to the technical field of orthopedic surgical tools, in particular to a finger-expanding external fixing frame applied to a finger adhesion separation operation.

Background

And refers to a deformity of the hand, usually congenital, which is manifested by the fusion of adjacent fingers. The case of the finger is divided into: two-finger and multi-finger fingers; the method is divided into the following steps according to the number of parallel tissues among fingers: complete and incomplete syndactyly; the tissue can be divided into simple soft tissue and synechia and osseous synechia according to the components of the synechia; there are also complex syndactyly accompanied by tendon and bone joint abnormalities. The treatment method of the syndactyly is mainly to correct through syndactyly.

The operation of separating fingers is a finger deformity operation, mainly aiming at the operation of finger and finger which cannot be separated. In the conventional syndactyly, a plurality of triangular flap incisions are respectively designed on the dorsal side and the palmar side of the hand, and after the surgical incision, the dorsal side and the palmar side of the hand are sutured in a crossed manner.

In the operation process, if the skin on two sides of the finger is insufficient, skin transplantation and repair are needed. Therefore, the design of the incision and flap for preoperative surgery is very important, and once the design size is deviated, the incision suture of the finger needs to be repaired by skin grafting.

Disclosure of Invention

The invention aims to provide a finger-opening external fixing frame, which aims to solve the technical problem that the incision suture part needs skin grafting repair once deviation occurs in the design of an incision and a flap of a preoperative operation by adopting a conventional finger-opening operation in the prior art.

The invention provides a finger-opening external fixing frame which comprises a first supporting plate, a second supporting plate and a thread adjusting piece, wherein the first supporting plate is fixed on the first supporting plate;

the first support plate is used for fixing one finger in the finger and the second support plate is used for fixing the other finger in the finger and the finger;

the inner side end of the first supporting plate is rotatably connected with the inner side end of the second supporting plate, the outer side end of the first supporting plate is fixedly connected with the inner side end of the threaded adjusting piece, the outer side end of the second supporting plate is sleeved on the threaded adjusting piece, and the outer side end of the threaded adjusting piece is used for being connected with an external adjusting piece;

the external adjusting piece can adjust the rotary motion of the threaded adjusting piece, and the external end of the second supporting plate moves close to or far away from the external end of the first supporting plate through the threaded adjusting piece.

Furthermore, the first support plate is provided with a first connecting hole along the width direction, and the first connecting hole is used for guiding and positioning a metal spicule on one finger bone in the finger;

the second support plate is provided with a second connecting hole along the width direction, and the second connecting hole is used for guiding a metal spicule on the other finger bone for positioning and pointing.

Furthermore, a first locking hole is formed in the first supporting plate in the thickness direction, the first locking hole is communicated with the first connecting hole, a first locking piece is connected into the first locking hole, and the tail end of the first locking piece is used for locking the metal spicule in the first connecting hole;

the second supporting plate is provided with a second locking hole along the thickness direction, the second locking hole is communicated with the second connecting hole, a second locking piece is connected in the second locking hole, and the tail end of the second locking piece is used for locking a metal bone needle in the second connecting hole.

Furthermore, the number of the first connecting holes, the first locking holes and the first locking pieces is correspondingly multiple;

the number of the second connecting holes, the second locking holes and the second locking pieces is correspondingly multiple.

Furthermore, the number of the first connecting holes is two, the two first connecting holes are communicated with the first locking hole, and the tail end of the first locking piece can lock the metal spicules in the two first connecting holes simultaneously;

the number of the second connecting holes is two, the two second connecting holes are communicated with the second locking hole, and the tail end of the second locking piece can lock the metal spicules in the two second connecting holes simultaneously.

Furthermore, a first connecting seat is arranged at the outer side end of the first supporting plate, the first connecting seat is connected with a first steering block through a first riveting piece and a first blocking piece, and the first steering block is fixedly connected with the inner side end of the threaded adjusting piece through a second riveting piece;

the outer side end of the second supporting plate is provided with a second connecting seat, the second connecting seat is connected with a second steering block through a second riveting piece and a second baffle, and the second steering block is sleeved on the thread adjusting piece.

Furthermore, a first adjusting hole is formed in the first steering block, a connecting rod is arranged at the inner side end of the threaded adjusting piece, and the connecting rod is connected into the first adjusting hole and fixed through a second riveting piece;

and a second adjusting hole is formed in the second steering block, and a thread section of the thread adjusting piece is arranged in the second adjusting hole in a penetrating mode.

Furthermore, a first connecting shaft is arranged at the inner side end of the first supporting plate, a second connecting shaft is arranged at the inner side end of the second supporting plate, and the first connecting shaft is connected with the second connecting shaft through a fourth riveting piece.

Furthermore, a polygonal hole is formed in the outer side end of the threaded adjusting piece and used for being connected with an external adjusting piece.

Compared with the prior art, the external fixing frame for spreading the fingers has the following advantages:

the first support plate fixes one finger in the finger and the second support plate fixes the other finger in the finger, and the positions of the two fingers are limited by the two support plates; the inner side ends of the two support plates are in rotating connection, so that the inner side ends of the two support plates can rotate relatively, and the outer side ends of the two fingers are driven to rotate; the outer side end of the first supporting plate is fixedly connected with the inner side end of the threaded adjusting piece, and the connecting position of the inner side end of the threaded adjusting piece is limited; the outer side end of the second supporting plate is sleeved on the threaded adjusting piece, and the outer side end of the threaded adjusting piece is connected with the external adjusting piece, so that the external adjusting piece drives the outer side end of the second supporting plate to move close to or far away from the outer side end of the first supporting plate through the rotation movement of the threaded adjusting piece, finally, one finger in the finger is moved close to or far away from the other finger, and the two fingers are pulled. The invention applies Ilizarov (Russian orthopedist plus Alizalov) biological theory, namely tensile stress law: when the biological tissue is slowly pulled to generate a certain tension, the regeneration and active growth of the tissue can be stimulated, the growth mode of the biological tissue is similar to that of fetal tissue, and the biological tissue and the fetal tissue are the same in cell division. The application applies the tensile stress principle, slowly props up the two fingers by slowly propping up the two supporting plates, promotes the regeneration of interphalangeal skin, and does not need skin transplantation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of an external fixing frame for supporting fingers according to an embodiment of the present invention;

fig. 2 is a front view of a first support plate according to an embodiment of the present invention;

fig. 3 is a left side view of a first support plate according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first supporting plate according to an embodiment of the present invention when mounted;

fig. 5 is a schematic structural diagram of a first steering block according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a first blocking sheet according to an embodiment of the present invention;

FIG. 7 is a front view of a second support plate provided in accordance with an embodiment of the present invention;

FIG. 8 is a left side view of a second support plate provided in accordance with an embodiment of the present invention;

FIG. 9 is a schematic structural view of a second support plate according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second steering block according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a fourth rivet provided in the embodiment of the present invention;

FIG. 12 is a schematic structural view of the connection between the first steering block, the second steering block and the threaded adjusting member according to the embodiment of the present invention;

FIG. 13 is a schematic structural view of a threaded adjustment member provided in accordance with an embodiment of the present invention;

fig. 14 is a left side view of a threaded adjustment member provided by an embodiment of the present invention.

Description of reference numerals:

100-a first support plate; 200-a second support plate;

300-a threaded adjustment; 101-a first connection hole;

102-a first locking hole; 103-a first locking member;

104-a first connection seat; 105-a first rivet;

106-a first flap; 107-a first turning block;

108-first adjustment aperture; 109-first connecting shaft;

201-a second connection hole; 202-a second locking hole;

203-a second locking member; 204-a second connection seat;

205-a second rivet; 206-a second baffle plate;

207-second turning block; 208-a second adjustment aperture;

209-a second connection shaft; 210-a fourth rivet;

301-a second rivet; 302-a connecting rod;

303-thread section; 304-polygonal hole.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 14, the external fixing frame for spreading fingers provided by the present invention comprises a first supporting plate 100, a second supporting plate 200 and a thread adjusting member 300;

the first support plate 100 is used for fixing one finger in the finger and the second support plate 200 is used for fixing the other finger in the finger;

the inner side end of the first support plate 100 is rotatably connected with the inner side end of the second support plate 200, the outer side end of the first support plate 100 is fixedly connected with the inner side end of the threaded adjusting piece 300, the outer side end of the second support plate 200 is sleeved on the threaded adjusting piece 300, and the outer side end of the threaded adjusting piece 300 is used for connecting an external adjusting piece;

the external adjusting member can adjust the rotational movement of the screw adjusting member 300, and the outer end of the second support plate 200 is moved closer to or farther from the outer end of the first support plate 100 by the screw adjusting member 300.

In one embodiment of the present invention, as shown in fig. 1, the inner end of the lower end of the first support plate 100 and the inner end of the lower end of the second support plate 200 are fixed by a fourth rivet in a rivet-turning manner, so that the lower ends of the two support plates can rotate and the lower ends of the two support plates are disposed just inside the two fingers. The external adjusting piece adopts a hexagonal wrench. The screw thread adjusting member 300 may be a screw rod or a screw rod.

During the operation, bore into two finger bones of patient with the metal spicule, the one end that exposes skin wears to establish respectively and fixes in two backup pads, at this moment, hexagonal spanner rotates screw thread adjusting part 300, the upper end that drives second backup pad 200 through screw thread adjusting part 300 is close to or is kept away from the upper end motion of first backup pad 100, adjust the distance between the upper end of two backup pads, the lower extreme that drives second backup pad 200 through the upper end of second backup pad 200 rotates around the lower extreme of first backup pad 100, make two and indicate separately. After the skin between the two fingers is pulled, the regeneration and the active growth of skin tissues are stimulated, and the skin area between the two fingers is increased along with the gradual expansion of the two fingers; when the skin between the two fingers grows to be enough for the operation incision suture, the operation of the finger pointing is carried out again, and the skin grafting repair is not needed in the operation process.

Further, the first support plate 100 is provided with a first connection hole 101 along the width direction thereof, and the first connection hole 101 is used for guiding a metal spicule on one of the finger bones for positioning and pointing;

the second support plate 200 is provided with a second coupling hole 201 along the width direction thereof, and the second coupling hole 201 is used to guide a metal spicule on the other finger bone positioned and pointed.

As shown in fig. 2, the first connection hole 101 is a through hole arranged along the width direction of the first support plate 100, so that the metal spicule on one of the finger bones can be conveniently fixed, and the metal spicule on one of the finger bones in the finger can be guided and positioned.

As shown in fig. 7, the second connection hole 201 is a through hole formed along the width direction of the second support plate 200, so that the metal spicule on another finger bone can be conveniently fixed, and the metal spicule on another finger bone in the finger can be guided and positioned.

Further, the first support plate 100 is provided with a first locking hole 102 along the thickness direction thereof, the first locking hole 102 is communicated with the first connection hole 101, a first locking member 103 is connected in the first locking hole 102, and the tail end of the first locking member 103 is used for locking the metal spicules in the first connection hole 101;

the second supporting plate 200 is provided with a second locking hole 202 along the thickness direction thereof, the second locking hole 202 is communicated with the second connecting hole 201, a second locking member 203 is connected in the second locking hole 202, and the end of the second locking member 203 is used for locking the metal spicule in the second connecting hole 201.

As shown in fig. 3, the first locking hole 102 is a through hole disposed along the thickness direction of the first support plate 100, and the first locking member 103 is a bolt, and the tip of the bolt abuts against the metal spicule in the first connection hole 101 to fix the metal spicule in the first connection hole 101.

As shown in fig. 8, the second locking hole 202 is a through hole provided along the thickness direction of the second support plate 200, and the second locking member 203 is a bolt, and the tip of the bolt abuts against the metal spicule in the second connecting hole 201 to fix the metal spicule in the second connecting hole 201.

Further, the number of the first connecting holes 101, the first locking holes 102 and the first locking members 103 is correspondingly multiple;

the number of the second connecting holes 201, the second locking holes 202 and the second locking member 203 is correspondingly large.

In this embodiment, four first connection holes 101 and four first locking holes 102 are arranged in parallel from top to bottom on the first support plate 100, and each first locking hole 102 is connected with a bolt, so that the ends of the four bolts are used to fix the metal spicules in the first connection holes 101.

Four second connecting holes 201 and four second locking holes 202 are arranged in parallel from top to bottom on the second support plate 200, and a bolt is connected in each second locking hole 202 so as to fix the metal in the second connecting holes 201 by utilizing the tail ends of the four bolts.

Further, the number of the first connecting holes 101 is two, the two first connecting holes 101 are communicated with the first locking hole 102, and the tail end of the first locking member 103 can lock the metal spicules in the two first connecting holes 101 at the same time;

the number of the second connecting holes 201 is two, the two second connecting holes 201 are communicated with the second locking hole 202, and the tail end of the second locking member 203 can lock the metal spicules in the two second connecting holes 201 at the same time.

The difference between this embodiment and the above embodiments is that, because the metal spicules on the fingers are small, two metal spicules with a relatively short distance need to be inserted, in order to fix the positions of the two metal spicules, two through holes with a relatively short distance are arranged on the first supporting plate 100, the two through holes are a pair of fixing holes, and the first locking hole 102 is communicated with both the two first connecting holes 101; the ends of the bolts in the first locking holes 102 can simultaneously abut against the metal spicules in the two first connecting holes 101 to simultaneously fix the two metal spicules; similarly, the second support plate 200 has the same structure as the first support plate 100.

Further, a first connecting seat 104 is arranged at the outer side end of the first support plate 100, the first connecting seat 104 is connected with a first steering block 107 through a first riveting piece 105 and a first blocking piece 106, and the first steering block 107 is fixedly connected with the inner side end of the threaded adjusting piece 300 through a second riveting piece 301;

the outer side end of the second supporting plate 200 is provided with a second connecting seat 204, the second connecting seat 204 is connected to a second steering block 207 through a second riveting member 205 and a second blocking piece 206, and the second steering block 207 is sleeved on the threaded adjusting member 300.

As shown in fig. 3, 4, 5 and 6, an inwardly concave notch is formed at the upper end of the first support plate 100, and a convex first connecting seat 104 is arranged on the side surface of the notch; the first connecting base 104 is provided with a through hole; the first turning block 107 is mounted at the notch through the first rivet 105 and the first blocking piece 106, and is connected and fixed with the through hole of the first connecting seat 104. The first rivet 105 is a rivet, and is fixed thereto using a rivet-turning process. The inner end of the threaded adjusting member 300 is fixedly connected to the inside of the first steering block 107 by a second rivet 301, the second rivet 301 is a rivet, and the rivet locks the connection position of the inner end of the threaded adjusting member 300.

As shown in fig. 8, 9 and 10, an inwardly recessed notch is formed at the upper end of the second support plate 200, a protruding second connecting seat 204 is formed on the side surface of the notch, a through hole is formed in the second connecting seat 204, and the second turning block 207 is mounted at the notch through a second riveting member 205 and a second blocking piece 206 and is connected and fixed with the through hole of the second connecting seat 204. The screw adjuster 300 is inserted into the second turning block 207, and defines a connection position of the screw adjuster 300.

Further, a first adjusting hole 108 is formed in the first turning block 107, a connecting rod 302 is arranged at the inner side end of the threaded adjusting piece 300, and the connecting rod 302 is connected into the first adjusting hole 108 and fixed through a second riveting piece 301;

the second turning block 207 is provided with a second adjusting hole 208, and the thread section 303 of the thread adjusting piece 300 is arranged in the second adjusting hole 208 in a penetrating way.

As shown in fig. 8 and 12, the first adjusting hole 108 is a stepped hole with a narrow inside and a wide outside, the second rivet 301 is a rivet, and the rivet is connected in the stepped hole and fixed to the end of the connecting rod 302 by a rivet so as to fix the end of the connecting rod 302 by the rivet.

As shown in fig. 10 and 12, the second adjustment hole 208 is a threaded hole formed in the second turning block 207, and the threaded section 303 is threaded into the second adjustment hole 208, so that the threaded section 303 rotates to move the second turning block 207 toward or away from the first turning block 107.

Further, a first connecting shaft 109 is disposed at an inner side end of the first support plate 100, a second connecting shaft 209 is disposed at an inner side end of the second support plate 200, and the first connecting shaft 109 and the second connecting shaft 209 are connected by a fourth riveting member 210.

As shown in fig. 2, a bent first connection shaft 109 is formed at a lower end of the first support plate 100, and a first through hole is formed in the first connection shaft 109. As shown in fig. 7, a bent second connecting shaft 209 is formed at the lower end of the second support plate 200, and a second through hole is formed in the second connecting shaft 209. The fourth riveting member 210 is a pin, the pin sequentially penetrates through the first through hole and the second through hole, the tail end of the pin is riveted and fixed by a rivet, and the lower end positions of the two support plates are fixed.

Further, the outer side end of the screw adjustor 300 is provided with a polygonal hole 304, and the polygonal hole 304 is used for connecting an external adjustor.

As shown in fig. 13 and 14, a hexagonal prism-shaped connecting shaft is disposed at the left end of the threaded adjusting member 300, an inwardly recessed hexagonal prism hole is formed in the end surface of the connecting shaft, a hexagonal wrench is used as the external adjusting member, the hexagonal wrench is embedded into the hexagonal prism hole at the left end of the threaded adjusting member 300, the hexagonal wrench is rotated, and the hexagonal wrench drives the threaded adjusting member 300 to rotate, so that the distance between the second supporting plate 200 and the first supporting plate 100 is adjusted.

When the operation is performed, the metal spicules are partially implanted into finger bones and partially exposed, and the exposed parts of the metal spicules of the two fingers are connected with the two support plates; the metal spicules are positioned on the supporting plate by adopting a plurality of connecting holes and locking holes, so that the fixed positions of the metal spicules are firm; the two supporting plates can rotate along the connecting pin at the lower end in multiple angles; the threaded adjusting piece 300 is rotated, the two fingers are propped open through the two supporting plates, the distance between the two fingers is adjusted, the two fingers are separated, the skin between the two fingers is pulled, the regeneration and active growth of skin tissues are stimulated, and the skin area between the two fingers is increased; when the skin between the two fingers grows to be enough for the suture of the surgical incision, the two fingers are separated, and the skin grafting repair is not needed in the process.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.