A clamping type automatic skin stretcher

Abstract

The present invention discloses a compression type automatic skin stretcher, comprising a stretching rod and a stretching sheet, wherein the stretching rod comprises a first stretching rod and a second stretching rod, and the stretching sheet comprises a first stretching sheet and a second stretching sheet; the two ends of the first stretching rod are respectively connected to the two ends of the first stretching sheet through a first connecting rod, and the two ends of the second stretching rod are respectively connected to the two ends of the second stretching sheet through a second connecting rod; the first connecting rod and the second connecting rod are cross-arranged, and the intersection of the first connecting rod and the second connecting rod is movably connected through a hinge shaft; a locking groove is provided on the stretching sheet, the first stretching sheet is provided with a first locking groove, and the second stretching sheet is provided with a second locking groove; the first stretching rod and the second locking groove, and the second stretching rod and the first locking groove can be locked or unlocked by a locking structure. The skin stretcher provided by the present invention has the advantages of being easy to operate, no additional operation is required by the surgeon and his assistant during the operation, and less damage to the skin tissue at the stretching part.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and in particular to a compression type automatic skin stretcher. Background Art

[0002] During medical surgery, doctors need to stretch the patient's cut skin to facilitate repair operations on the tissues, organs, bones, blood vessels, etc. inside the skin. Spreaders are essential surgical instruments in many surgical operations. They are simple and convenient to operate, can save manpower and operating space, and are therefore favored by surgeons. However, due to the limitations of the structural design of existing spreaders, someone still needs to be responsible for pulling the spreader during actual use, which wastes manpower; and because the assistant does not know the doctor's desired spread part, spread angle, when to spread, and spread degree, the surgeon needs to constantly remind the assistant to correct the operation method, which will distract the surgeon's attention and is very detrimental to the operation.

[0003] As in the prior art, a utility model with application number 201821186667.5 discloses a skin retractor, including a support rod and an elastic member, the support rod including a hand-held portion and an opening portion respectively located at both ends of the support rod and a corner downward portion located between the hand-held portion and the opening portion; the support rod has a pair of and is arranged along a cross-section with each other, and the two support rods are rotatably connected at the intersection point; the spatial planes where the two hand-held portions are located are staggered and parallel to the spatial planes where the two opening portions are located; the two ends of the elastic member are respectively connected to the two hand-held portions, and after the two hand-held portions move in a direction approaching each other, the two opening portions move in a direction away from each other, and the two hand-held portions compress the elastic member.

[0004] When using the skin retractor provided in the above utility model, the surgeon needs to operate the skin retractor with one hand and perform other operations with the other hand, which will greatly limit and affect the surgeon's surgical operation; in addition, in the above-mentioned prior art retractor, the part that contacts the skin is not smooth, and it is inevitable to cause damage to the skin during the retraction process, especially since the retraction time is usually long during surgery, and the sharp part of the retractor is likely to cause irreversible damage to the skin tissue. Summary of the invention

[0005] In view of the deficiencies of the prior art, an object of the present invention is to provide a skin spreader which is easy to operate, does not require additional operations by the surgeon and his assistant during the operation, and causes less damage to the skin tissue at the spread site.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a clamping type automatic skin stretcher, the stretcher includes a stretching rod and a stretching sheet, the stretching rod includes a first stretching rod and a second stretching rod, and the stretching sheet includes a first stretching sheet and a second stretching sheet; the two ends of the first stretching rod are respectively connected to the two ends of the first stretching sheet through a first connecting rod, and the two ends of the second stretching rod are respectively connected to the two ends of the second stretching sheet through a second connecting rod; the first connecting rod and the second connecting rod are cross-arranged, and the intersection of the first connecting rod and the second connecting rod is movably connected through a hinge shaft; the stretching sheet is provided with a locking groove, the first stretching sheet is provided with a first locking groove, and the second stretching sheet is provided with a second locking groove; the first stretching rod and the second locking groove, as well as the second stretching rod and the first locking groove can be locked or unlocked by a locking structure.

[0007] Furthermore, the locking structure includes a locking groove arranged on the expansion rod, and limit blocks arranged on both sides of the locking groove; a first lock buckle, a second lock buckle, a spring, a first pressure rod and a second pressure rod arranged in the locking groove; the first lock buckle is connected to the first pressure rod, the second lock buckle is connected to the second pressure rod, and the spring is arranged between the first lock buckle and the second lock buckle.

[0008] Furthermore, the locking structure is located in the middle of the propping rod and the locking groove.

[0009] Furthermore, the cross-sectional shapes of the first expansion piece and the second expansion piece are both arc-shaped, and the openings of the arc-shaped cross-sectional shapes of the first expansion piece and the second expansion piece are both facing inward; the longitudinal cross-sectional shapes of the first expansion piece and the second expansion piece are both arc-shaped, and the openings of the arc-shaped longitudinal cross-sectional shapes of the first expansion piece and the second expansion piece are both facing outward.

[0010] Furthermore, the cross-sectional shapes of the first locking groove and the second locking groove are both arc-shaped, and the cross-sectional curvature of the first locking groove and the second locking groove is the same as the cross-sectional curvature of the first expansion piece and the second expansion piece; the longitudinal cross-sectional shapes of the first locking groove and the second locking groove are both arc-shaped, and the openings of the longitudinal cross-sectional arcs of the first locking groove and the second locking groove are upward.

[0011] Furthermore, the length of the locking groove does not exceed the length of the expansion piece.

[0012] Furthermore, the first expansion rod and the second expansion rod are cylinders with curvature, and the curvature of the first expansion rod and the second expansion rod is the same as the curvature of the cross-section of the first locking groove and the second locking groove; the diameter of the first expansion rod and the second expansion rod is smaller than the diameter of the arc of the longitudinal section of the first locking groove and the second locking groove.

[0013] Furthermore, the first connecting rod and the second connecting rod are both arc-shaped. When the expander is in the expanded state, the first connecting rod, the second connecting rod, the first expansion rod, and the second expansion rod form a complete circle or ellipse; part of the first connecting rod and the second connecting rod are received in the first locking groove and the second locking groove.

[0014] When in use, the first and second stretching pieces of the stretcher are placed on both sides of the incision, so that the incision skin is located in the arc-shaped groove in the stretching piece; the first stretching rod and the second stretching rod are pulled to the sides and pressed to the bottom, so that the first stretching rod and the second locking groove are locked by the locking structure, and the second stretching rod and the first locking groove are also locked by the locking structure. After the incision is stretched open by the above method, the doctor can perform the operation. After the operation is completed, the locking structure is unlocked by pressing the first and second pressure rods toward the middle, the stretching rods can be retracted, and the stretcher can be removed from the incision.

[0015] The beneficial effects of the present invention are as follows: compared with the prior art, the skin stretcher provided by the present invention has the following advantages:

[0016] 1) The cross-section and longitudinal sections of the expansion piece are both arc-shaped, which can protect the incision skin to the greatest extent and can also make the smallest incision reach the largest possible expansion degree, and can be used for hemostasis of the incision edge;

[0017] 2) In the expanded state, the first connecting rod, the second connecting rod, the first expansion rod, and the second expansion rod form a complete circle or ellipse, and the expansion rod and part of the first connecting rod and the second connecting rod are all received in the first locking groove and the second locking groove, so that the expansion opening area is large, which is convenient for surgical operation;

[0018] 3) Simple operation and easy use. Through the fixation of the locking structure, the expansion stability is good, which saves manpower and no longer requires an assistant to pull the hook beside during surgery;

[0019] 4) Wide range of applications, with dilators of various models and sizes available to meet different types of surgical needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the expander provided in the present invention in the expanded state.

[0021] Figure 2 It is a schematic diagram of the structure of the expander provided in the present invention in a folded state.

[0022] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along line A-A'.

[0023] Figure 4It is a schematic cross-sectional structure diagram of the locking structure of the spreader provided in the present invention in the unlocked state.

[0024] Among them, 1-first expansion rod; 2-second expansion plate; 3-second locking groove; 4-first connecting rod; 5-hinge shaft; 6-second connecting rod; 7-first expansion plate; 8-first locking groove; 9-second expansion rod; 10-locking groove; 11-limiting block; 12-first locking buckle; 13-spring; 14-second locking buckle; 15-first pressure rod; 16-second pressure rod. DETAILED DESCRIPTION

[0025] The present invention is further described below by specific examples, but these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0026] Example 1

[0027] like Figures 1 to 4 As shown, a clamping type automatic skin stretcher, the stretcher includes a stretching rod and a stretching plate, the stretching rod includes a first stretching rod 1 and a second stretching rod 9, and the stretching plate includes a first stretching plate 7 and a second stretching plate 2; the two ends of the first stretching rod 1 are respectively connected to the two ends of the first stretching plate 7 through a first connecting rod 4, and the two ends of the second stretching rod 9 are respectively connected to the two ends of the second stretching plate 2 through a second connecting rod 6; the first connecting rod 4 and the second connecting rod 6 are cross-arranged, and the intersection of the first connecting rod 4 and the second connecting rod 6 is movably connected through a hinge shaft 5; the stretching plate is provided with a locking groove, the first stretching plate 7 is provided with a first locking groove 8, and the second stretching plate 2 is provided with a second locking groove 3; the first stretching rod 1 and the second locking groove 3, and the second stretching rod 9 and the first locking groove 8 can be locked or unlocked by a locking structure.

[0028] The locking structure includes a locking groove 10 provided on the spreading rod, limit blocks 11 provided on both sides of the locking groove 10; a first lock buckle 12, a second lock buckle 14, a spring 13, a first pressure rod 15 and a second pressure rod 16 provided in the locking groove; the first lock buckle 12 is connected to the first pressure rod 15, the second lock buckle 14 is connected to the second pressure rod 16, and the spring 13 is provided between the first lock buckle 12 and the second lock buckle 14. The locking structure is located in the middle of the spreading rod and the locking groove.

[0029] The cross-sectional shapes of the first opening piece 7 and the second opening piece 2 are both arc-shaped, and the arc-shaped openings of the cross-sectional shapes of the first opening piece 7 and the second opening piece 2 are both facing inward; the longitudinal cross-sectional shapes of the first opening piece 7 and the second opening piece 2 are both arc-shaped, and the arc-shaped openings of the longitudinal cross-sectional shapes of the first opening piece 7 and the second opening piece 2 are both facing outward.

[0030] The cross-sectional shapes of the first locking groove 8 and the second locking groove 3 are both arc-shaped, and the curvature of the cross-sectional shapes of the first locking groove 8 and the second locking groove 3 are the same as the curvature of the cross-sectional shapes of the first opening piece 7 and the second opening piece 2; the longitudinal cross-sectional shapes of the first locking groove 8 and the second locking groove 3 are both arc-shaped, and the openings of the longitudinal cross-sectional arcs of the first locking groove 8 and the second locking groove 3 are upward. The length of the locking groove does not exceed the length of the opening piece.

[0031] The first expansion rod 1 and the second expansion rod 9 are cylinders with curvature, and the curvature of the first expansion rod 1 and the second expansion rod 9 is the same as the curvature of the cross section of the first locking groove 8 and the second locking groove 3; the diameter of the first expansion rod 1 and the second expansion rod 9 is smaller than the diameter of the longitudinal section arc of the first locking groove 8 and the second locking groove 3.

[0032] The first connecting rod 4 and the second connecting rod 6 are both arc-shaped. When the expander is in the expanded state, the first connecting rod 4, the second connecting rod 6, the first expansion rod 1, and the second expansion rod 9 form a complete circle or ellipse; part of the first connecting rod 4 and the second connecting rod 6 are received in the first locking groove 8 and the second locking groove 3.

[0033] When in use, the first stretching piece 7 and the second stretching piece 2 of the stretcher are placed on both sides of the incision, so that the incision skin is located in the arc-shaped groove in the stretching piece; the first stretching rod 1 and the second stretching rod 9 are pulled to the sides and pressed to the bottom, so that the first stretching rod 1 and the second locking groove 3 are locked by the locking structure, and the second stretching rod 9 and the first locking groove 8 are also locked by the locking structure. After the incision is stretched open by the above method, the doctor can perform the operation. After the operation is completed, the locking structure is unlocked by pressing the first pressure rod 15 and the second pressure rod 16 toward the middle, the stretching rods can be folded, and the stretcher can be removed from the incision.

[0034] The skin stretcher provided by the present invention has the following advantages:

[0035] 1) The cross-section and longitudinal sections of the expansion piece are both arc-shaped, which can protect the incision skin to the greatest extent and can also make the smallest incision reach the largest possible expansion degree, and can be used for hemostasis of the incision edge;

[0036] 2) In the expanded state, the first connecting rod 4, the second connecting rod 6, the first expansion rod 1, and the second expansion rod 9 form a complete circle or ellipse, and the expansion rod and part of the first connecting rod 4 and the second connecting rod 6 are all received in the first locking groove 8 and the second locking groove 3, so that the expansion opening area is large, which is convenient for surgical operation;

[0037] 3) Simple operation and easy use. Through the fixation of the locking structure, the expansion stability is good, which saves manpower and no longer requires an assistant to pull the hook beside during surgery;

[0038] 4) Wide range of applications, with dilators of various models and sizes available to meet different types of surgical needs.

[0039] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A compression type automatic skin stretcher, characterized in that: The expander includes an expander rod and an expander sheet, the expander rod includes a first expander rod and a second expander rod, and the expander sheet includes a first expander sheet and a second expander sheet; two ends of the first expander rod are respectively connected to two ends of the first expander sheet through a first connecting rod, and two ends of the second expander rod are respectively connected to two ends of the second expander sheet through a second connecting rod; the first connecting rod and the second connecting rod are cross-arranged, and the intersection of the first connecting rod and the second connecting rod is movably connected through a hinge shaft; a locking groove is provided on the expander sheet, a first locking groove is provided on the first expander sheet, and a second locking groove is provided on the second expander sheet; the first expander rod and the second locking groove, as well as the second expander rod and the first locking groove, can be locked or unlocked by a locking structure; The locking structure comprises a locking groove provided on the spreading rod, and limit blocks provided on both sides of the locking groove; a first locking buckle, a second locking buckle, a spring, a first pressure rod and a second pressure rod provided in the locking groove; the first locking buckle is connected to the first pressure rod, the second locking buckle is connected to the second pressure rod, and the spring is provided between the first locking buckle and the second locking buckle; The first connecting rod and the second connecting rod are both arc-shaped. When the expander is in the expanded state, the first connecting rod, the second connecting rod, the first expansion rod and the second expansion rod form a complete circle or ellipse; part of the first connecting rod and the second connecting rod are received in the first locking groove and the second locking groove.

2. The compression type automatic skin stretcher according to claim 1, characterized in that: The locking structure is located in the middle of the propping rod and the locking groove.

3. The compression type automatic skin stretcher according to claim 1, characterized in that: The cross-sectional shapes of the first and second expansion pieces are both arc-shaped, and the arc-shaped openings of the cross-sectional shapes of the first and second expansion pieces are both facing inward; the longitudinal cross-sectional shapes of the first and second expansion pieces are both arc-shaped, and the arc-shaped openings of the longitudinal cross-sectional shapes of the first and second expansion pieces are both facing outward.

4. The compression type automatic skin stretcher according to claim 3, characterized in that: The cross-sectional shapes of the first locking groove and the second locking groove are both arc-shaped, and the curvature of the cross-sectional shapes of the first locking groove and the second locking groove are the same as the curvature of the cross-sectional shapes of the first expansion piece and the second expansion piece; the longitudinal cross-sectional shapes of the first locking groove and the second locking groove are both arc-shaped, and the openings of the longitudinal cross-sectional arcs of the first locking groove and the second locking groove are upward.

5. A compression type automatic skin stretcher according to claim 1 or 4, characterized in that: The length of the locking groove does not exceed the length of the expansion piece.

6. The compression type automatic skin stretcher according to claim 4, characterized in that: The first and second expansion rods are cylinders with curvature, and the curvature of the first and second expansion rods is the same as the curvature of the cross-section of the first and second locking grooves; the diameter of the first and second expansion rods is smaller than the diameter of the arc of the longitudinal section of the first and second locking grooves.

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