Adjustable skin drafting device

Abstract

The utility model discloses an adjustable skin drafting device which comprises a drafting assembly, a stretching assembly and a pair of kirschner wires. The drafting assembly comprises a drafting threaded rod, a first drafting sliding block is screwed to the left side of the drafting threaded rod in a threaded mode, a second drafting sliding block is further installed in the middle of the drafting threaded rod in a sliding mode, a drafting sleeve is inserted into the right side of the second drafting sliding block, and the drafting threaded rod is sleeved with the drafting sleeve in a sliding mode. A drafting clamping jaw is fixed to the lower end of the first drafting sliding block and the lower end of the second drafting sliding block, a drafting spring is further sleeved on the right side of the drafting threaded rod, a drafting knob is further screwed on the right side of the drafting threaded rod in a threaded mode, and the two ends of the drafting spring are connected with the corresponding sides of the drafting knob and the second drafting sliding block in an abutting mode respectively. The skin at the wound position can be conveniently folded, meanwhile, the discomfort caused by Kirschner wires to the skin can be effectively reduced, and the use requirement can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an adjustable skin stretching device. Background Art

[0002] In surgical operations, when a large wound on a patient needs to be sutured, a skin stretching device is usually used to stretch the skin at the wound site together before suturing. The existing skin stretching device inserts a Kirschner wire under the skin, clamps the Kirschner wire with the clamping claw at the lower end of the sliding block, and then moves the sliding block on the stretching rod to stretch the skin on both sides of the wound together. The stretching device has the following defects:

[0003] 1. If the sliding hole on the sliding block is small, the sliding block is prone to get stuck when sliding on the traction rod, which increases the sliding difficulty of the sliding block;

[0004] 2. If the sliding hole on the sliding block is large, the sliding block is prone to tilt during the sliding process, which may cause the Kirschner wire to twist and increase the patient's pain;

[0005] 3. The traction device cannot fix the Kirschner wire well. During the entire stretching process, the Kirschner wire is prone to twisting, which can irritate the patient's skin, cause pain, and even affect the blood supply to the skin edge, causing local skin infection and necrosis.

[0006] Therefore, a skin stretching device is urgently needed to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide an adjustable skin stretching device to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] An adjustable skin stretching device comprises: a stretching assembly, a stretching assembly and a pair of Kirschner wires; the stretching assembly comprises a stretching threaded rod, a stretching slider 1 is threadedly mounted on the left side of the stretching threaded rod, a stretching slider 2 is slidably mounted on the middle position of the stretching threaded rod, a stretching sleeve is inserted on the right side of the stretching slider 2, the stretching sleeve is slidably mounted on the stretching threaded rod, a stretching clamping claw is fixed to the lower ends of the stretching slider 1 and the stretching slider 2, a stretching spring is also mounted on the right side of the stretching threaded rod, a stretching knob is also threadedly mounted on the right side of the stretching threaded rod, and two ends of the stretching spring are respectively abutted and connected with the stretching knob and the corresponding side of the stretching slider 2.

[0010] As a preferred solution, the upper ends of the drafting slider 1 and the drafting slider 2 are both threadedly mounted with drafting bolts for locking.

[0011] As a preferred solution, the stretching assembly includes a stretching threaded rod, a stretching slider 1 is threadedly installed on the left side of the stretching threaded rod, a stretching slider 2 is also slidably installed in the middle of the stretching threaded rod, a stretching sleeve is inserted on the right side of the stretching slider 2, the stretching sleeve is slidably sleeved on the stretching threaded rod, a stretching clamp is rotatably installed on the lower ends of the stretching sliders 1 and 2, a stretching spring is also sleeved on the right side of the stretching threaded rod, a stretching knob is also threadedly installed on the right side of the stretching threaded rod, and the two ends of the stretching spring are respectively connected with the stretching knob and the corresponding side of the stretching slider 2. By setting up the stretching assembly, it is convenient to cooperate with the stretching assembly to close the skin on both sides of the wound for suturing.

[0012] As a preferred solution, the upper ends of the stretching slider 1 and the stretching slider 2 are both threadedly mounted with stretching bolts for locking.

[0013] As a preferred solution, the stretching clamp and the tensioning clamp are both composed of a fixed part, a rotating part and a locking bolt, the fixed part is hinged with the rotating part, the locking bolt is inserted on the rotating part, and the end of the locking bolt is threadedly screwed into the threaded hole of the fixed part. By providing the stretching clamp and the tensioning clamp, it is convenient to clamp the Kirschner wire.

[0014] As a preferred solution, a bending portion is provided at one end of the Kirschner wire.

[0015] As a preferred solution, a positioning groove is provided at the position of the bending part at the opposite side of the rotating part and the fixing part. By providing the positioning groove and clamping the bending part therein, the twisting of the Kirschner wire can be effectively prevented.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the drafting sleeve on the right side of the drafting slider 2 can improve the stability of the movement of the drafting slider 2, and can effectively reduce the occurrence of jamming when the drafting slider 2 moves;

[0017] The stretch sleeve on the right side of the stretch slider 2 can improve the stability of the movement of the stretch slider 2, and can effectively reduce the possibility of jamming when the stretch slider 2 moves. The stretch clamping claw rotatably connected to the stretch slider 1 and the stretch slider 2 can further reduce the possibility of jamming when the stretch slider moves.

[0018] By arranging a positioning groove on the stretching clamp to position the end of the Kirschner wire, the possibility of twisting of the Kirschner wire can be effectively reduced, the discomfort caused by the Kirschner wire to the patient can be reduced, and the use requirements can be better met. The utility model has a reasonable structure, which is convenient for closing the skin at the wound position, and can effectively reduce the discomfort caused by the Kirschner wire to the skin, and can better meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an adjustable skin stretching device;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of a stretching component of an adjustable skin stretching device;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of a stretching component of an adjustable skin stretching device;

[0022] Figure 4 A schematic diagram of the three-dimensional structure of a Kirschner wire of an adjustable skin stretching device;

[0023] Figure 5 It is a schematic diagram of the structure of an adjustable skin stretching device when stretching from above;

[0024] Figure 6 The figure is a schematic diagram of the top view of another embodiment of an adjustable skin stretching device during stretching.

[0025] In the figure: 1-drafting assembly, 11-drafting slider 1, 12-drafting threaded rod, 13-drafting clamping claw, 131-fixed part, 132-rotating part, 133-locking bolt, 134-positioning groove, 14-drafting bolt, 15-drafting spring, 16-drafting knob, 17-drafting slider 2, 171-drafting sleeve;

[0026] 2-stretching assembly, 21-stretching slider 1, 22-stretching threaded rod, 23-stretching clamping claw, 24-stretching bolt, 25-stretching spring, 26-stretching knob, 27-stretching slider 2, 271-stretching sleeve;

[0027] 3-K-wire, 31-bend. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example: See Figures 1 to 5, an adjustable skin stretching device, comprising: a stretching component 1, a stretching component 2 and a pair of Kirschner wires 3; the stretching component 1 comprises a stretching threaded rod 12, a stretching slider 11 is threadedly screwed on the left side of the stretching threaded rod 12, a stretching slider 17 is slidably installed in the middle position of the stretching threaded rod 12, a stretching sleeve 171 is inserted on the right side of the stretching slider 17, and the stretching sleeve 171 is slidably sleeved on the stretching threaded rod 12, a stretching clamping claw 13 is fixed to the lower ends of the stretching slider 11 and the stretching slider 17, a stretching spring 15 is also sleeved on the right side of the stretching threaded rod 12, a stretching knob 16 is also threadedly screwed on the right side of the stretching threaded rod 12, and the two ends of the stretching spring 15 are respectively in contact with the stretching knob 16 and the corresponding side of the stretching slider 17.

[0030] In order to improve the stability of the drafting, the upper ends of the drafting slider 11 and the drafting slider 2 17 are both threadedly screwed with a drafting bolt 14 for locking.

[0031] The working principle of the drafting mechanism 1 is: when used specifically, according to Figure 5 A pair of Kirschner wires 3 are distributed and inserted into the skin on both sides of the wound. Then, the end of the left Kirschner wire 3 is clamped by the stretching claw 13 at the lower end of the stretching slider 11. Then, the end of the other Kirschner wire 3 is clamped by the stretching claw 13 at the lower end of the stretching slider 2 17. Then, the stretching knob 16 is turned. Under the elastic force of the stretching spring 15, the stretching slider 2 17 is pushed close to the stretching slider 1, so that the Kirschner wires 3 on both sides drive the skin to close, thereby facilitating the subsequent suturing work. The stretching sleeve 171 on the right side of the stretching slider 2 17 can improve the stability of the movement of the stretching slider 2 17, and can effectively reduce the jamming of the stretching slider 2 17 when it moves, so as to better meet the use requirements.

[0032] Then, the draft bolt 14 is rotated, and the draft bolt 14 moves down and contacts the draft threaded rod 12, thereby locking the draft threaded rod 12 and improving the stability of the draft. When it is necessary to loosen, a hemostatic forceps can be clamped on the draft screw rod 12 on the left side of the draft slider 17, and then the draft bolt 14 is loosened, which can effectively prevent the wound from opening again due to the sudden opening of the draft spring 15.

[0033] As a further solution, the stretching assembly 2 includes a stretching threaded rod 22, a stretching slider 1 21 is threadedly installed on the left side of the stretching threaded rod 22, a stretching slider 27 is also slidably installed in the middle position of the stretching threaded rod 22, a stretching sleeve 271 is inserted on the right side of the stretching slider 27, and the stretching sleeve 271 is slidably sleeved on the stretching threaded rod 22, a stretching clamp 23 is rotatably installed at the lower ends of the stretching slider 1 21 and the stretching slider 27, a stretching spring 25 is also sleeved on the right side of the stretching threaded rod 22, and a stretching knob 26 is also threadedly installed on the right side of the stretching threaded rod 22, and the two ends of the stretching spring 25 are respectively connected to the corresponding side of the stretching knob 26 and the stretching slider 27. In this embodiment, the maximum elastic force of the stretching spring 25 and the traction spring 15 is less than the maximum traction force that the skin can withstand, which can effectively prevent the traction force from being too large and causing blood circulation disorders at the skin edge, causing skin necrosis. In actual application, when the stretching knob 26 pushes the traction spring 15, the traction spring 15 is not fully compressed and is within a safe range. As the skin stretches, the traction spring 15 will gradually lengthen. At this time, the stretching knob 26 can be adjusted again to push the traction spring 15 to compress a part of it, and the elastic force of the traction spring 15 is used to gradually stretch the skin edge until the wound surface is completely closed.

[0034] In order to improve the stability of the stretching, the upper ends of the stretching slider 1 21 and the stretching slider 2 27 are both threaded with a stretching bolt 24 for locking. In this embodiment, if the wound is large, two sets of stretching assemblies 2 can be used to perform the stretching work at the middle position and the other end of the Kirschner wire 3 respectively. The stretching clamp 23 that is rotatably connected to the stretching slider 1 21 and the stretching slider 2 27 can reduce the possibility of jamming when the stretching slider 27 moves.

[0035] The working principle of the stretching assembly 2 is: the Kirschner wire 3 on the left is clamped by the stretching claw 23 at the lower end of the stretching slider 1 21, and then the other Kirschner wire is clamped by the stretching claw 23 at the lower end of the stretching slider 27, and then the stretching knob 26 is turned to move the stretching knob 26 to the left along the stretching threaded rod 22. At this time, the elastic force of the stretching spring 25 pushes the stretching slider 27 close to the stretching slider 1 21, so that the Kirschner wires 3 on both sides drive the skin to move closer to each other. When stretched to a suitable position, the stretching threaded rod 22 is locked by the stretching bolt 24 to facilitate suturing. When it is necessary to loosen, the hemostatic forceps can be clamped on the stretching screw 122 on the left side of the stretching slider 27, and then the stretching bolt 24 is loosened, which can effectively prevent the wound from opening again due to the sudden opening of the stretching spring 25, thereby improving the safety of the device.

[0036] As a further solution, the stretching jaw 13 and the tensioning jaw 23 are both composed of a fixed part 131, a rotating part 132 and a locking bolt 133. The rotating part 132 is hinged on the fixed part 131, and the locking bolt 133 is inserted on the rotating part 132. The end of the locking bolt 133 is threadedly screwed into the threaded hole of the fixed part 131.

[0037] In order to reduce the possibility of the K-wire 3 rotating, a bending portion 31 is provided at one end of the K-wire 3 , and a positioning groove 134 is provided at the position of the bending portion 31 at the opposite side of the rotating portion 132 and the fixing portion 131 .

[0038] When clamping, buckle the rotating part 132 and the fixed part 131 onto the two sides of the Kirschner wire 3, and then rotate the locking bolt 133 to push the rotating part 132 close to the fixed part 131 through the locking bolt 133, so that the Kirschner wire 3 is clamped, and the bending part 31 at the end of the Kirschner wire 3 extends into the positioning groove 134, which can effectively reduce the possibility of twisting of the Kirschner wire 3 and reduce the discomfort caused by the Kirschner wire 3 to the patient, so as to better meet the usage requirements.

[0039] The working principle of the utility model: when used specifically, first, a pair of Kirschner wires 3 are respectively inserted into the skin on both sides of the wound, then, one end of the Kirschner wire 3 is clamped by the stretching component 1, then, the other end of the Kirschner wire 3 is clamped by the stretching component 2, and then, the Kirschner wires 3 on both sides are driven to approach each other by the stretching component 1 and the stretching component 2, so that the skin at the wound position is closed, so as to facilitate the subsequent suturing work.

[0040] like Figure 6 As shown, when the wound is long, a set of stretching components 1 or stretching components 2 can be added to facilitate the closure of the skin of the long wound.

[0041] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

Claims

1. An adjustable skin stretching device, characterized in that: include: A stretching assembly (1), a stretching assembly (2) and a pair of Kirschner wires (3); The drafting assembly (1) comprises a drafting threaded rod (12), a drafting slider (11) is threadedly mounted on the left side of the drafting threaded rod (12), a drafting slider (17) is slidably mounted on the middle position of the drafting threaded rod (12), a drafting sleeve (171) is inserted on the right side of the drafting slider (17), and the drafting sleeve (171) is slidably mounted on the drafting threaded rod (12), a drafting clamp (13) is fixed at the lower ends of the drafting slider (11) and the drafting slider (17), a drafting spring (15) is also mounted on the right side of the drafting threaded rod (12), and a drafting knob (16) is also threadedly mounted on the right side of the drafting threaded rod (12), and two ends of the drafting spring (15) are respectively abutted and connected with the drafting knob (16) and the corresponding side of the drafting slider (17); The stretching assembly (2) comprises a stretching threaded rod (22), a stretching slider (21) being threadedly mounted on the left side of the stretching threaded rod (22), a stretching slider (27) being slidably mounted on the middle position of the stretching threaded rod (22), a stretching sleeve (271) being inserted on the right side of the stretching slider (27), the stretching sleeve (271) being slidably mounted on the stretching threaded rod (22), a stretching clamping claw (23) being rotatably mounted on the lower ends of the stretching slider (21) and the stretching slider (27), a stretching spring (25) being mounted on the right side of the stretching threaded rod (22), a stretching knob (26) being threadedly mounted on the right side of the stretching threaded rod (22), and two ends of the stretching spring (25) being respectively abuttingly connected with the stretching knob (26) and the corresponding side of the stretching slider (27).

2. The adjustable skin stretching device according to claim 1, characterized in that: The upper ends of the drafting slider 1 (11) and the drafting slider 2 (17) are both threadedly mounted with a drafting bolt (14) for locking.

3. The adjustable skin stretching device according to claim 2, characterized in that: The upper ends of the stretching slider 1 (21) and the stretching slider 2 (27) are both threadedly screwed with a stretching bolt (24) for locking.

4. The adjustable skin stretching device according to claim 3, characterized in that: The stretching clamp (13) and the tensioning clamp (23) are both composed of a fixed part (131), a rotating part (132) and a locking bolt (133); the rotating part (132) is hinged on the fixed part (131); the locking bolt (133) is inserted on the rotating part (132); the end of the locking bolt (133) is threadedly screwed into the threaded hole of the fixed part (131).

5. The adjustable skin stretching device according to claim 4, characterized in that: A bending portion (31) is provided at one end of the Kirschner wire (3).

6. The adjustable skin stretching device according to claim 5, characterized in that: A positioning groove (134) is provided at a position corresponding to the bending portion (31) on the opposite side of the rotating portion (132) and the fixing portion (131).

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