CN211883818U

CN211883818U - Adjustable skin tension tester

Info

Publication number: CN211883818U
Application number: CN202020099555.7U
Authority: CN
Inventors: 何林; 朱婵; 舒茂国
Original assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Current assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-11-10
Anticipated expiration: 2030-01-10

Abstract

Skin tension apparatus with adjustable, including two fixed feet that are used for fixing on wound both sides skin, link to each other through the connecting rod between two fixed feet, fixed foot on be connected with and impel the piece, impel the piece and be used for promoting two fixed feet and slide on the connecting rod, impel the piece on one end be provided with locking structure, the other end is provided with the spring, the spring tail end set up pressure sensor, the last display 7 that is connected with of pressure sensor. The utility model discloses can survey different positions wound skin tension's device, the device is external using, and is little to the skin damage, easy operation, and the disinfection of being convenient for can be used for clinically.

Description

Adjustable skin tension tester

Technical Field

The utility model relates to a skin tension measures technical field, in particular to skin tension determinator with adjustable.

Background

The skin tension at the wound site is directly related to whether the wound can be directly closed, which method and material should be selected for wound closure, and the degree of scar hyperplasia after wound healing. The simple and adjustable wound skin tension measuring device is manufactured, and has important guiding significance for clinical application and scientific research.

At present, no measuring instrument specially used for measuring the skin tension of wounds exists clinically. The skin stretching device which is used clinically at present aims at the problem that the wound has too high tension and can not be directly drawn together and sutured. In the traditional skin stretching device, a kirschner wire penetrates into two sides of a skin wound in parallel, and then the kirschner wires on the two sides of the wound are stretched by mechanical force to close the wound. The device aims to pull the skin to close the wound, but cannot measure the skin tension at the wound. It is known that the tension that the skin can bear is limited, and excessive tension can tear the skin and cause the risk of ischemic necrosis of the skin margin. Therefore, an adjustable apparatus for measuring the skin tension of a wound is needed to measure the skin tension of the wound.

There have been improvements to conventional skin retractors. Chinese patent document CN201711065999.8 introduces a tension measurable adjustable skin stretching anastomat. The device comprises a force measuring structure and two sets of skin stretching structures distributed on two sides of the force measuring structure, wherein the force measuring structure adopts a spring dynamometer. Although the device can measure the tension of the skin at a wound site, the device is still a skin stretching device which is used for stretching the skin to close the wound, and is not specially used for measuring the skin tension of the wound. In addition, the measuring device adopts a spring dynamometer, is relatively heavy, and has inaccurate force measurement, especially for the part with small wound skin tension, the wound skin tension cannot be accurately measured.

It is therefore the background of the present invention to develop a measuring device which is mainly used for accurately measuring the skin tension at the wound site and which can measure the skin tensions of different sizes, and to provide a medical device which can assist in skin stretching when necessary.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide an adjustable skin tension tester, which can test the skin tension of wounds at different positions, is used in vitro, has small damage to the skin, is simple in operation, is convenient for disinfection, and can be used for clinic.

In order to realize the purpose, the utility model discloses a technical scheme is:

skin tension apparatus with adjustable, including two fixed feet 1 that are used for fixing on wound both sides skin, link to each other through connecting rod 2 between two fixed feet 1, fixed foot 1 on be connected with propulsion piece 3, propulsion piece 3 is used for promoting two fixed feet 1 and slides on connecting rod 2, propulsion piece 3 on one end be provided with locking structure 4, the other end is provided with spring 5, 5 tail ends of spring set up pressure sensor 6, be connected with display 7 on the pressure sensor 6.

The fixed foot 1 comprises a needle frame and 2 metal sheets connected above the needle frame and arranged side by side, the direction of each metal sheet is vertical to that of the needle frame, small holes are formed in the metal sheets, and the 2 metal sheets are spaced by 1 cm.

The connecting rod 2 is a cylindrical metal rod with the diameter of about 2mm, one end of the connecting rod is connected and fixed with the needle frame, and the other end of the connecting rod penetrates through the needle frame, so that the needle frame can freely move on the connecting rod 2 without resistance.

The propelling part 3 is a threaded metal rod, penetrates through the needle frame from the middle of the two connecting rods 2, one end of the propelling part 3 is provided with a spring 5 and a pressure sensor 6, and the other end of the propelling part is provided with a locking structure 4.

The pressure sensor 6 is connected to the display 7 through an electric wire to display the strength.

The utility model has the advantages that:

(1) the utility model discloses utilize skin to lead and stretch device together with pressure sensor, made a tensile stress measurement ware that can be used to measure different wounds skin tension. The device can accurately measure the skin tension of the wound, and makes up the defect that no accurate wound tension measuring device exists clinically at present.

(2) The utility model discloses a skin draw gear simple structure, light in weight easily installs, and the device is little to the tensile influence of skin during the measurement, easily demolishs after the survey is ended, if not demolishs, can also regard as a skin draw gear to continuously stretch after the tension has been surveyed.

(3) The pressure sensor is adopted by the force measuring device, compared with the traditional spring force meter, the data measured by the pressure sensor is more accurate, the weight of the device is reduced, and the influence of overlarge devices on wounds is reduced, so that the force measuring result is influenced.

Drawings

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

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1:

the skin tension measuring device comprises a force measuring device and a set of skin stretching devices which can be fixed on two sides of the skin of a wound. The skin stretching device comprises two fixing feet 1 used for being fixed on the skin on two sides of a wound, a connecting rod 2 used for connecting the two fixing feet 1, a pushing piece 3 used for pushing the two fixing feet 1 to slide on the connecting rod 2, and a locking structure 4 arranged on the pushing piece 3. Propulsion piece 3 is the screw thread form, and when rotatory propulsion piece 3, two fixed feet 1 can be close to along the screw thread direction, make the wound closure, and when the wound reached the closure back, use locking structure 4 to lock.

Furthermore, two fixed feet 1 that can be used to fix on wound both sides skin comprise a needle frame and connect 2 sheetmetals of arranging side by side above it, and the sheetmetal direction is perpendicular with the needle frame direction, has the aperture on the sheetmetal, and the interval is 1cm between 2 sheetmetals. The metal sheet can be well attached to the surface of the skin and is adhered or sewed to the skin through the adhesive tape.

Further, the two needle frames are connected into a whole through two connecting rods 2. The connecting rod 2 is a metal rod with the diameter of about 2mm, one end of the connecting rod is fixed with the needle frame, and the other end of the connecting rod penetrates through the needle frame, so that the needle frame can freely move on the connecting rod without resistance. The middle of the two connecting rods 2 is provided with a propelling part 3, the propelling part 3 is a threaded metal rod, the needle frame penetrates through the centers of the two connecting rods 2, and the fixing foot on one side is pushed to move towards the other direction by rotating the locking structure 4 at the tail end until the skins on the two sides are involuted.

Further, the force measuring device is a pressure sensing force measuring device. A spring 5 is arranged at the other end (opposite to the locking structure) of the propelling part 3, and a pressure sensor 6 is arranged at the tail end of the spring 5. The other end of the pressure sensor 6 is connected to a display 7. In the case of a skin wound which is free from any external force and which is naturally open, the spring on the side of the pressure sensor 6 is completely relaxed, and there is no pressure on the pressure sensor 6, which reads zero. When the locking structure 4 at the tail end of the pushing piece 3 is rotated, the wound is closed under the action of tension, and the spring 5 at the tail end of the pushing piece 3 is pressed to press the pressure sensor 6, so that the pressure applied is sensed, and finally the pressure sensor 6 displays the pressure in a numerical mode, thereby indirectly reflecting the tension of the skin of the wound.

The utility model discloses the theory of operation:

when the fixing foot device is used, the two fixing feet 1 are respectively fixed on two sides of a skin wound, the metal sheets on the fixing feet 1 can be well attached to the surface of the skin, and the fixing foot device is fixed on the skin through adhesive tape adhesion or suture. When the tension is particularly high, a kirschner wire can be used for penetrating through the metal sheet on the fixing foot 1 and then penetrating through the skin on two sides of the wound to be fixed on the wound.

After the two fixing feet 1 are tightly fixed with the skin on two sides of the wound, the locking structure 4 on the pushing piece 3 is adjusted to enable the locking structure 4 to be located at the initial position of zero tension of the wound. At the moment, the wound is naturally opened without any external force, the two fixing feet 1 are positioned at the two sides of the wound, and the locking structure 4 is tightly close to the fixing feet 1. The spring 5 at the other end is in a fully relaxed state and the pressure sensor 6 does not receive any pressure and reads zero.

When the tension needs to be measured, the locking structure 4 on the pushing rod 3 is rotated to enable the skin on two sides of the wound to be closed under the pushing force, the spring 5 at the other end of the rod of the pushing piece 3 is infected with pressure and is compressed and deformed, and the pressure sensor 6 at the tail end of the spring 5 displays the sensed pressure value specifically. When the skin of the wounds on the two sides is completely closed, the locking structure 4 stops being screwed at the moment, and the pressure sensed by the pressure sensing device on the other rod of the push rod 3 is the tension of the skin wound.

Claims

1. Skin tension apparatus with adjustable, its characterized in that includes two fixed feet (1) that are used for fixing on wound both sides skin, links to each other through connecting rod (2) between two fixed feet (1), fixed foot (1) on be connected with propulsion piece (3), propulsion piece (3) are used for promoting two fixed feet (1) and slide on connecting rod (2), propulsion piece (3) on one end be provided with locking structure (4), the other end is provided with spring (5), spring (5) tail end set up pressure sensor (6), be connected with display (7) on pressure sensor (6).

2. The adjustable skin tension tester as claimed in claim 1, wherein the fixed foot (1) is composed of a needle frame and 2 metal sheets connected above the needle frame and arranged side by side, the direction of the metal sheets is perpendicular to that of the needle frame, small holes are formed in the metal sheets, and the interval between the 2 metal sheets is 1 cm.

3. The adjustable skin tension tester as claimed in claim 1, wherein the connecting rod (2) is a cylindrical metal rod with a diameter of about 2mm, one end of which is connected and fixed with the needle frame, and the other end of which passes through the needle frame, so that the needle frame can move freely on the connecting rod (2) without resistance.

4. The adjustable skin tension tester as claimed in claim 1, wherein the pushing member (3) is a threaded metal rod passing through the needle holder from the middle of the two connecting rods (2), and one end of the pushing member (3) is provided with a spring (5) and a pressure sensor (6), and the other end is provided with a locking structure (4).

5. The adjustable skin tension tester as claimed in claim 1, wherein the pressure sensor (6) is connected to a display (7) by a wire to display the force level.