CN110974513B

CN110974513B - Tractor for distal radius fracture

Info

Publication number: CN110974513B
Application number: CN201911416537.5A
Authority: CN
Inventors: 王星全; 唐成林; 陈莉; 朱怀宇; 陈鑫; 彭宪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-11-12
Anticipated expiration: 2039-12-31
Also published as: CN110974513A

Abstract

The invention relates to the technical field of medical equipment, in particular to a tractor for distal radius fracture, which comprises a fixed plate, wherein the fixed plate is connected with a traction plate, the lower surface of the fixed plate is provided with a rotating assembly, the rotating assembly comprises a rotating rod rotationally connected with the fixed plate, the rotating rod comprises a spline shaft I and a threaded section which are mutually fixed, the spline shaft I is matched and connected with a spline sleeve I rotationally connected with the fixed plate, the fixed plate is provided with a threaded hole, and the threaded section can be in threaded connection with the threaded hole; a plurality of bandages are fixed on the spline housing I; the traction plate is in threaded connection with a fine adjustment bolt, and the fine adjustment bolt can be abutted to the rotating rod in a coaxial line. This scheme can be to the fixed of wrist tractive and arm palm, very inconvenient problem when having solved fixed arm and palm among the prior art.

Description

Tractor for distal radius fracture

Technical Field

The invention relates to the technical field of medical equipment, in particular to a retractor for distal radius fracture.

Background

The distal radius fracture is very common in usual fracture treatment, the common saying of the distal radius fracture is wrist fracture, and the fracture position is within 2-3 cm of the distal radius. The distal radius fracture requires fixation with a splint until the bone is restored, and the contraction of the bone occurs during the restoration due to the traction of the muscles, so that the wrist needs to be continuously pulled during the restoration. At present, doctors respectively fix arms and palms on splints by giving different traction forces to wrists according to different conditions of patients, but the following problems exist: the doctor is very inconvenient when adopting to tighten and bring fixed arm and palm, needs a plurality of doctors to cooperate together, and needs high harmony in the cooperation process, if cooperate uncoordinated, can cause injury once more for the patient.

Disclosure of Invention

The invention aims to provide a retractor for distal radius fracture, which solves the problem of inconvenience in fixing arms and palms in the prior art.

The scheme is basically as follows: a tractor for distal radius fracture comprises a fixing plate, wherein the fixing plate is connected with a traction plate, a rotating assembly is arranged on the lower surface of the fixing plate and comprises a rotating rod rotatably connected with the fixing plate, the rotating rod comprises a spline shaft I and a threaded section which are mutually fixed, the spline shaft I is matched and connected with a spline sleeve I rotatably connected with the fixing plate, a threaded hole is formed in the fixing plate, and the threaded section is in threaded connection with the threaded hole; a plurality of bandages are fixed on the spline housing I; the traction plate is in threaded connection with a fine adjustment bolt, and the fine adjustment bolt can be abutted to the rotating rod in a coaxial line.

Has the advantages that: the free end of the bandage is wound on the arm and the fixing plate and then fixed on the fixing plate, the rotating rod is rotated, and the rotating rod drives the spline sleeve to rotate, so that the bandage is wound to be tensioned, the arm and the fixing plate are fixed, and a palm is fixed with the traction plate by a doctor through bandage binding; then, the rotating rod continues to rotate, the thread section is meshed with the threaded hole, the rotating rod moves integrally, and after the rotating rod abuts against the fine adjustment bolt, the traction plate can be pushed to be far away from the fixing plate, so that traction of the wrist is achieved, and in the process of continuing to rotate, the bandage can further increase the fixing force of the arm. Compared with the prior art, the scheme does not need a plurality of doctors to cooperate to perform traction and binding, thereby reducing the secondary injury to the patient. Simultaneously, this scheme tractive force is big more, can be with the arm fixed tighter with the fixed plate to guarantee tractive stability.

Furthermore, the rotating rod further comprises a second spline shaft, and the second spline shaft is connected with a second spline sleeve in a matched manner; the end of the fixing plate is provided with a lower chute, the second spline housing is in sliding connection with the lower chute, the second spline housing is fixedly connected with a rotary drum, a bandage is also fixed on the rotary drum, and the second spline housing and the rotary drum are both in rotating connection with the traction plate.

The rotating rod drives the rotating cylinder to rotate, so that the palm and the traction plate can be fixed by the bandage, and the cooperation of doctors is further reduced.

Furthermore, a first groove and a second groove are respectively formed in the lower surfaces of the fixing plate and the traction plate, and the spline sleeve I and the rotary drum are respectively located in the first groove and the second groove.

Therefore, the first groove and the second groove are not formed relatively, the spline housing I and the rotary drum can be arranged in an embedded mode, and the overall size is reduced.

Further, a connecting ring is fixed at the free end of the bandage. The connecting ring facilitates fixing the free end of the bandage.

Further, hook seats for fixing the connecting rings are fixed on the side faces of the fixing plate and the traction plate.

The connecting ring is directly lapped on the hook seat to fix the free end of the bandage, and the operation is simple and convenient.

Furthermore, an elbow support is fixed at one end, far away from the traction plate, of the fixing plate. The elbow support can be matched with the elbow part, so that the fixing performance of the fixing plate and the arm is improved.

Further, the elbow rest is spherical in shape. Thus, the elbow support can be attached to the elbow part, and the matching performance and the comfort are improved.

Furthermore, an upper sliding groove is formed in the fixing plate, a sliding rod is connected in the upper sliding groove in a sliding mode, and the sliding rod is fixed with the traction plate. The slide bar can play a guide role, and the stability in traction is improved.

Furthermore, a holding rod is fixed on the traction plate.

The palm can be fixed by the bandage after holding the holding rod, so that the fixing effect of the palm and the traction plate is improved, and the stable traction is ensured.

Furthermore, detachable fixedly connected with rotor plate on the tractive board, rotor plate and tractive board can be the angle installation, is equipped with the recess on the rotor plate.

The doctor is according to the fracture condition, often needs to be certain angle with the palm and arm and carries out the tractive after-fixing, is angle installation with the tractive board during rotor plate installation, and the palm is put into the recess, can make palm and arm be certain angle.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of a first embodiment of the invention.

Fig. 3 is a schematic top view of fig. 1.

Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a third embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a fixed plate 1, a toggle support 10, a first groove 11, a sliding rod 12, a threaded hole 13, a hook seat 15, a traction plate 2, a second groove 21, a holding rod 22, a rotating plate 23, a rotating assembly 3, a rotating rod 30, a first spline shaft 31, a first spline housing 32, a threaded section 33, a second spline shaft 34, a second spline housing 35, a rotating drum 36, a bandage 40, a connecting ring 41, a fine adjustment bolt 5, an upper chute 16 and a lower chute 17.

The first embodiment is basically as follows:

a retractor for distal radius fracture is shown in figure 1 and comprises a fixing plate 1, wherein an elbow support 10 is fixedly connected to the right end of the fixing plate 1, and a traction plate 2 is connected to the left end of the fixing plate 1. The lower surface of the fixed plate 1 is provided with a first groove 11 and is connected with a rotating component 3.

As shown in fig. 2, the rotating assembly 3 includes a rotating rod 30, the rotating rod 30 is rotatably connected to the fixing plate 1, the rotating rod 30 includes a first spline shaft 31, a first thread section 33 and a second spline shaft 34, the first spline shaft 31 is disposed corresponding to the first groove 11, the first spline shaft 31 is sleeved with a first spline housing 32, the first thread section 33 is located at the left end of the first groove 11, the fixing plate 1 is provided with a threaded hole 13, and the first thread section 33 can be in threaded connection with the threaded hole 13.

An upper sliding groove 16 and a lower sliding groove 17 are arranged at the left end of the fixed plate 1, a sliding rod 12 is connected in the upper sliding groove 16 in a sliding manner, and the sliding rod 12 is fixed with the right end of the traction plate 2; and a second spline housing 35 is connected in the lower sliding groove 17 in a sliding manner, and the second spline housing 35 is rotationally connected with the traction plate 2. The second spline shaft 34 is matched with the second spline sleeve 35.

The lower surface of the pulling plate 2 is provided with a second groove 21, a rotary drum 36 is arranged in the second groove 21, the rotary drum 36 is rotatably connected with the side wall of the second groove 21, and the rotary drum 36 is fixed with the left end of the second spline sleeve 35. The left side wall of the second groove 21 is in threaded connection with a fine adjustment bolt 5 through a threaded through hole, the fine adjustment bolt 5 is coaxial with the rotary drum 36, and the right end of the fine adjustment bolt 5 can abut against the left end of the second spline shaft 34.

As shown in FIG. 1, a plurality of bandages 40 are fixed on the first spline housing 32 corresponding to the first groove 11, one bandage 40 is also fixed on the rotary drum 36, one end of the bandage 40 is fixed on the first spline housing 32 and the rotary drum 36 through winding, and the unwound end is a free end. As shown in fig. 1 and 3, a connecting ring 41 is fixed on the free end of each bandage 40, the connecting ring 41 is made of metal or plastic, the hook seat 15 is fixed on the side of the fixing plate 1 and the pulling plate 2 opposite to the free end of the bandage 40, and the connecting ring 41 can be connected with the hook seat 15.

During the use, the patient puts the arm on fixed plate 1, and the palm is put on traction plate 2 and the crooked left end edge that catches on traction plate 2 of finger, and the elbow support 10 is pasted on the elbow of arm, twines the free end of bandage 40 on fixed plate 1 behind arm and fixed plate 1, and go-between 41 is fixed on corresponding hook 15, walks around the palm with the free end of bandage 40 on traction plate 2 and fixes on hook 15 on traction plate 2 behind traction plate 2.

The rotating rod 30 is pulled and rotated towards the elbow support 10 to enable the thread section 33 to be separated from the threaded hole 13, then a tool is used for rotating the rotating rod 30, the spline shaft I31 and the spline shaft II 34 respectively drive the spline sleeve I32 and the spline sleeve II 35 to rotate, the spline sleeve I32 rotates and winds the bandage 40, the bandage 40 is tensioned, the fixing plate 1 is fixed with the arm, the spline sleeve II 35 drives the rotating cylinder 36 to rotate, the rotating cylinder 36 also winds the bandage 40, and the bandage 40 is tensioned to enable the palm to be fixed on the traction plate 2.

Then the rotating rod 30 is pushed to the left, the rotating rod 30 is rotated continuously, the threaded section 33 is connected with the threaded hole 13 in a threaded mode, and the bandage 40 can be further tensioned during the continuous rotation process, so that the fixing strength is improved. After the thread section 33 is in threaded connection with the threaded hole 13, the rotating rod 30 is rotated, the rotating rod 30 can slide leftwards integrally, and after the left end of the second spline shaft 34 abuts against the fine adjustment bolt 5, the traction plate 2 can be pushed to move leftwards relative to the fixing plate 1, so that traction on the wrist can be realized, and fine adjustment can be performed on traction force by the fine adjustment bolt 5. If the bandage 40 reaches the required maximum tightening force soon before the left end of the second spline shaft 34 abuts against the fine adjustment bolt 5, the fine adjustment bolt 5 is rotated to make the fine adjustment bolt 5 move right to abut against the left end of the second spline shaft 34, and then the rotating rod 30 is rotated. If the pulling force meets the requirement and the bandage 40 does not reach the required tightening force, the fine adjustment bolt 5 is moved to the left, and then the rotating rod 30 is rotated to the left, so that the adjustment is repeated for many times.

Example two:

the difference from the first embodiment is that, as shown in fig. 4, a grip 22 is fixed to the upper surface of the drawplate 2. The patient can hold the holding rod 22 by hand and then fix the hand and the pulling plate 2 by using the bandage 40, thereby improving the pulling stability.

Example three:

the difference from the first embodiment is that, as shown in fig. 5, a rotating plate 23 is detachably and fixedly connected to the drawplate 2 through bolts, the rotating plate 23 is provided with a groove, and the palm portion of the patient can be placed in the groove of the rotating plate 23. In the traction process, the doctor needs to make the palm and the arm form a certain angle according to the fracture condition. When the rotating plate 23 is installed, the rotating plate 23 can be fixedly installed at an angle with the middle line of the traction plate 2, and after the palm is placed in the groove, the palm and the arm form a certain angle.

The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the structure of the present invention, and these should be construed as the scope of the present invention. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A retractor for distal radius fractures, comprising a fixation plate, wherein: the fixed plate is connected with a traction plate, the lower surface of the fixed plate is provided with a rotating assembly, the rotating assembly comprises a rotating rod which is rotatably connected with the fixed plate, the rotating rod comprises a spline shaft I and a threaded section which are fixed with each other, the spline shaft I is connected with a spline sleeve I which is rotatably connected with the fixed plate in a matching manner, the fixed plate is provided with a threaded hole, and the threaded section is used for being in threaded connection with the threaded hole; a plurality of bandages for fixing arms are fixed on the spline housing I; the traction plate is in threaded connection with a fine adjustment bolt, and the fine adjustment bolt can be abutted against the rotating rod in a coaxial line; the rotating rod further comprises a spline shaft II, and the spline shaft II is connected with a spline sleeve II in a matching manner; the end part of the fixing plate is provided with a lower chute, the spline sleeve II is connected with the lower chute in a sliding way, the spline sleeve II is fixedly connected with a rotating drum, a bandage for fixing a palm is also fixed on the rotating drum, and the spline sleeve II and the rotating drum are both rotationally connected with the traction plate; the spline housing I and the rotary drum are respectively positioned on the lower surfaces of the fixing plate and the traction plate.

2. The retractor for distal radius fractures according to claim 1, wherein: the fixed plate and the traction plate are respectively provided with a first groove and a second groove on the lower surfaces, and the spline sleeve I and the rotary drum are respectively positioned in the first groove and the second groove.

3. The retractor for distal radius fractures according to claim 2, wherein: and a connecting ring is fixed at the free end of the bandage.

4. A retractor for use in distal radius fractures according to claim 3 in which: and hook seats for fixing the connecting rings are fixed on the side surfaces of the fixed plate and the traction plate.

5. The retractor for distal radius fractures according to claim 4, wherein: and one end of the fixed plate, which is far away from the traction plate, is fixed with an elbow support.

6. The retractor for distal radius fractures according to claim 5, wherein: the elbow rest is spherical.

7. The retractor for distal radius fractures according to any one of claims 1-6 wherein: the fixed plate is provided with an upper chute, a slide bar is connected in the upper chute in a sliding manner, and the slide bar is fixed with the traction plate.

8. The retractor for distal radius fractures according to claim 7 wherein: the holding rod is fixed on the traction plate.

9. The retractor for distal radius fractures according to claim 8, wherein: the traction plate is detachably and fixedly connected with a rotating plate, the rotating plate and the traction plate can be installed at an angle, and a groove is formed in the rotating plate.