CN217548044U

CN217548044U - Skin tensiometer for preoperative incision planning

Info

Publication number: CN217548044U
Application number: CN202221028013.6U
Authority: CN
Inventors: 胡海蓉; 陈超伟; 孔维真
Original assignee: Zhejiang Deshang Yunxing Medical Technology Co ltd
Current assignee: Zhejiang Deshang Yunxing Medical Technology Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-10-11
Anticipated expiration: 2032-04-28

Abstract

The utility model belongs to the technical field of medical instrument, aim at providing a skin tensiometer that is used for incision planning before the art. Comprises a fixed seat, a movable seat, a slide rail and a screw rod; the fixed seat and the movable seat are both cylindrical, the slide rail is in a long flat plate shape, and the bottom surfaces of the two ends of the slide rail are respectively connected with the top surfaces of the fixed seat and the movable seat; a through sliding groove is formed in the center of the sliding rail along the length direction, one tail end of the sliding groove is positioned above the moving seat, and the limiting in the relative movement is realized through a bolt arranged on the moving seat; the screw rod is arranged below the slide rail in parallel, and the middle part of the screw rod penetrates through the transverse through hole in the movable seat; one end of the screw rod is arranged in a counter bore on the side surface of the fixed seat, and the other end of the screw rod is sleeved with a hand wheel which can rotate and move relative to the screw rod; a spring is sleeved on the lead screw between the hand wheel and the moving seat. The product can be used for measuring the nondestructive skin tension before operation, determining the optimal incision line or the optimal wound closing direction, and providing the most direct basis for the operation planning of doctors.

Description

Skin tensiometer for preoperative incision planning

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to a skin tensiometer for incision planning before art.

Background

The skin texture is the texture of a plurality of ridges and depressions naturally formed on the surface of the skin, which is called dermatoglyph for short. In the dermal structure of the skin, a bundle of elastic fibers and collagen fibers are always arranged in a certain direction, and the arrangement has a certain trend, some places are concave, and some places are convex, so that lines are formed, which are the dermatoglyphs of the skin. The dermatoglyph is related to the location, different in trend and depth. The dermatoglyph lines of the skin itself are the skin tension lines. Different human body parts and different tension lines. When the surgical operation is performed, the incision is cut along the tension line, the wound is slightly cracked, and the healed scar is not obvious. After surgery, about 35% of patients develop over-scarring, resulting in disfigurement and impaired function. Placing the incision in the wrong direction can result in unnecessary skin tension on the wound, resulting in increased collagen deposition and potentially hypertrophic scarring. Therefore, a skin tension line is often used for surgical incision planning prior to surgery. However, these lines are not apparent, they are only static representations of skin tension, and are actually affected by muscle action.

Chinese utility model patent CN 211883818U provides an adjustable skin tension tester for skin tension detection and auxiliary traction at the wound site after operation. The product has the following disadvantages: 1. the place where the product is connected with the skin is a metal body, so that the disinfection is inconvenient; although the pressure sensor is more accurate in measuring values, the pressure sensor also puts more rigorous requirements on use and carrying; the operation of the propelling part is inconvenient and is difficult to control accurately; the product design is intended for existing wound skin tension detection, and is not targeted for non-incision skin tension measurement, and therefore is not suitable for preoperative incision planning.

Therefore, there is a need for an improvement over existing products that provides a skin tensiometer for preoperative incision planning.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough that exists among the prior art, provide a skin tensiometer that is used for incision planning before the art.

For solving the technical problem, the utility model discloses a solution is:

the skin tensiometer comprises a fixed seat, a movable seat, a slide rail and a lead screw; the fixed seat and the movable seat are both cylindrical, the slide rail is in a long flat plate shape, and the bottom surfaces of the two ends of the slide rail are respectively connected with the top surfaces of the fixed seat and the movable seat; a through sliding groove is formed in the center of the sliding rail along the length direction, one tail end of the sliding groove is positioned above the moving seat, and the limiting in the relative movement is realized through a bolt arranged on the moving seat; the screw rod is arranged below the slide rail in parallel, and the middle part of the screw rod penetrates through the transverse through hole in the movable seat; one end of the screw rod is arranged in a counter bore on the side surface of the fixed seat, and the other end of the screw rod is sleeved with a hand wheel which can rotate and move relative to the screw rod; a spring is sleeved on the lead screw between the hand wheel and the moving seat, and a plane is arranged on the lead screw; the side surface of the movable seat is provided with a positioning mark, the side surface of the sliding rail is provided with a scale, and the positioning mark and the scale are matched to measure the distance change between the fixed seat and the movable seat; scale marks are uniformly arranged on the plane of the screw rod at intervals and are used for measuring the displacement distance of the hand wheel; the bottom of the fixed seat and the bottom of the movable seat are respectively sleeved with a seat cushion, the outer edges of the two seat cushions are respectively provided with two marking positions, and each seat cushion can be adjusted to enable the connecting line between the marking positions to be vertical to the scale of the sliding rail.

As a modified proposal, the cross sections of the fixed seat and the movable seat are circular, oval, square or rectangular.

As an improved scheme, a pin column is arranged at the bottom of one end of the sliding rail, and an arc groove is annularly arranged on the surface of the pin column; the top surface of the fixing seat is provided with a counter bore, the side surface of the counter bore is provided with a through pin hole, and the pin post is inserted into the counter bore and then locked by the matching of a wave ball screw arranged in the pin hole and the arc groove.

As an improved scheme, a counter bore is arranged on the top surface of the movable seat, a through pin hole is arranged on the side surface of the counter bore, and the plug pin is inserted into the counter bore and locked by a wave ball screw arranged in the pin hole.

As an improved scheme, the scale on the side surface of the slide rail is provided with scale marks at even intervals, and the corresponding scale intervals are marked by numbers.

As an improvement, the cross section of the screw rod is circular, oval, square or rectangular.

As an improved scheme, a counter bore is arranged on the side surface of the fixed seat, and a through pin hole is arranged on the side surface of the counter bore; and an arc groove is annularly arranged on the surface of the end part of the screw rod, and the screw rod is locked by matching a ball screw arranged in the pin hole with the arc groove after being inserted into the counter bore.

As an improved scheme, the upper end surface of the seat cushion is provided with an annular bulge, and the inner part of the annular bulge is sunken to be used as a mounting position of the fixed seat and the movable seat; the bottom of the fixed seat and the bottom of the movable seat are provided with sunken positioning grooves, and positioning blocks are correspondingly arranged in the sunken parts in the seat cushion, so that after the fixed seat and the movable seat are positioned and installed, a connecting line between the mark positions of each seat cushion is perpendicular to the scale of the sliding rail.

As an improved scheme, the side surfaces of the fixed seat and the movable seat are provided with scale marks parallel to the central axes of the fixed seat and the movable seat, and each seat cushion can be adjusted to enable a connecting line between the mark positions of the seat cushion to correspond to the scale marks and to be vertical to a scale of the sliding rail.

As an improved scheme, the bottom surface of the seat cushion is provided with a medical double-sided adhesive tape.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the product can be used for measuring the nondestructive skin tension before operation, and the reaction force of the skin to the compression is measured by applying the equivalent compression force to the skin and measuring the displacement of the skin, so that the optimal incision line or the optimal wound closing direction can be determined, and the most direct basis can be provided for the operation planning of doctors.

2. The product has small damage to skin by fixing the medical double-sided adhesive tape, and is convenient to use, disinfect and mark.

3. The product only needs to compare the skin tension difference in different directions under the condition of equivalent compression force, and does not need to measure the skin tension data in all directions exactly, so that a pressure detection device is not needed. The whole product only uses a machining part and does not use any electronic equipment. Therefore, the product has simple structure, low manufacturing cost and almost no maintenance cost.

4. The product is made of polycarbonate material, has low cost, can be used for one time, can omit the disinfection process and avoid cross infection.

Drawings

Fig. 1 is a schematic structural view of the skin tensiometer of the present invention.

Fig. 2 is a front view and a sectional view of the holder.

Fig. 3 is a front view and a sectional view of the movable base.

Fig. 4 is a front view of the slide rail.

Fig. 5 is a schematic structural view of the plug.

Fig. 6 is a schematic structural view of the seat cushion.

Reference numbers in the figures: 1, a hand wheel; 2, a spring; 3, leading screws; 4, cushion; 5, moving the seat; 6, fixing a seat; 7, a sliding rail; 8, inserting a pin; 9 wave ball screw.

Detailed Description

As shown in fig. 1, the skin tensiometer for planning incision before operation of the present invention comprises a fixed seat 6, a movable seat 5, a slide rail 7 and a lead screw 3; the fixed seat 6 and the movable seat 5 are both cylindrical, and can also be selected to be cylindrical with an oval, square or rectangular cross section. The slide rail 7 is in the shape of a long flat plate, and the bottom surfaces of two ends of the slide rail are respectively connected with the top surfaces of the fixed seat 6 and the movable seat 5. A through sliding groove is arranged in the center of the sliding rail 7 along the length direction, one tail end of the sliding groove is positioned above the moving seat 5, and the limit in the relative movement is realized through a bolt 8 arranged on the top surface of the moving seat 5.

As shown in fig. 2 and 4, a pin is arranged at the bottom of one end of the slide rail 7, and an arc groove is annularly arranged on the surface of the pin; correspondingly, a counter bore is arranged on the top surface of the fixed seat 6, a through pin hole is arranged on the side surface of the counter bore, and after the pin is inserted into the counter bore, the locking is realized by the cooperation of the wave ball screw 9 arranged in the pin hole and the arc groove on the pin. As shown in fig. 1 and 3, a counter bore is formed in the top surface of the movable seat 5, a through pin hole is formed in the side surface of the counter bore, and the plug pin 8 is inserted into the counter bore and locked by a ball screw inserted into the pin hole.

As shown in fig. 1, the screw rod 3 is arranged in parallel below the slide rail 7, and the middle part of the screw rod penetrates through the transverse through hole on the movable base 5; the cross section of the screw 7 can be selected from circular, oval, square or rectangular. One end of a lead screw 7 is arranged in a counter bore on the side surface of the fixed seat 6, and the other end of the lead screw is sleeved with a hand wheel 1 which can rotate and move relative to the lead screw 7; the spring 2 is sleeved on the lead screw 7 between the hand wheel 1 and the moving seat 5, and the section of the lead screw is provided with a plane formed by cutting.

As shown in fig. 2, a counterbore is arranged on the side surface of the fixed seat 6, and a through pin hole is arranged on the side surface of the counterbore; the surface of the end part of the screw rod is annularly provided with an arc groove, and after the screw rod 7 is inserted into the counter bore, the screw rod is locked by matching the wave ball screw arranged in the pin hole with the arc groove.

As shown in fig. 1, a scale is arranged on the side surface of the slide rail 7, is a scale mark with uniform intervals, and marks corresponding scale intervals with numbers; set up the location mark at the side of removing seat 5, can measure the interval change of fixing base 6 and removal seat 5 with the cooperation of slide rail 7 side scale. Scale marks which are uniformly spaced are arranged on the plane of the screw rod 3 and are used for measuring the displacement distance of the hand wheel 1; the seat cushions 4 are respectively sleeved at the bottoms of the fixed seat 6 and the movable seat 5, the outer edges of the two seat cushions 4 are respectively provided with two marking positions, and each seat cushion 4 can be adjusted to ensure that a connecting line between the marking positions is vertical to a scale of the sliding rail 7.

The upper end surface of the seat cushion 4 is provided with an annular bulge, and the inner part of the annular bulge is sunken to be used as a mounting position of the fixed seat 6 and the movable seat 5; the bottoms of the fixed seat 6 and the movable seat 5 are provided with concave positioning grooves, positioning blocks are correspondingly arranged in the inner concave parts of the seat cushions 4, the positioning blocks of the seat cushions 4 are nested in the positioning grooves after installation, and connecting lines among the marking positions of the seat cushions 4 are perpendicular to the scale of the sliding rail 7. As an alternative, instead of setting the positioning groove and the positioning block, the side surfaces of the fixed seat 6 and the movable seat 5 may be provided with scale marks parallel to the central axes thereof, and each seat cushion 4 may be adjusted such that a connecting line between the marking positions thereof corresponds to the scale marks and remains perpendicular to the scale of the slide rail 7. Of course, the former scheme can make the doctor more convenient when in actual use, only need to ensure that the constant head tank line of fixing base 6 and removal seat 5 bottom is perpendicular rather than the horizontal counter bore of upper portion or horizontal through-hole with man-hour, the doctor with disposable seatpad 4 suit correspondingly the fixing base 6 with remove the seat 5 bottom can.

As an optional scheme, the lead screw 3 in the product is made of 304 stainless steel materials, the seat cushion 4 is made of polycarbonate materials, and the movable seat 5, the fixed seat 6 and the sliding rail 7 are all made of aluminum alloy materials. The diameter of the inner recess of the surface of the seat cushion 4 is interference fitted with the outer diameters of the moving seat 5 and the fixed seat 6, respectively, so that both can be just inserted into the seat cushion 4. The marking locations of the seat cushion 4 may preferably be grooves which are oppositely arranged in the radial direction in the extension of the outer edge thereof (as shown in fig. 6).

Product method of use description:

1. and confirming that the product is assembled, wherein a connecting line between the marking positions of the seat cushion 4 is vertical to the scale of the sliding rail 7.

2. A roughly planned surgery area is drawn on the skin surface to be operated on with a marker pen, products are placed around the planned surgery area, and the slide rail 7 and the lead screw 3 are made to cross the planned surgery area.

3. The relative positions of the movable seat 5 and the fixed seat 6 are adjusted to ensure that the positioning mark of the movable seat 5 is aligned with the 0 scale position of the scale on the slide rail 7, and then the two seat cushions 4 are stuck on the surface of the skin by using the medical double-sided adhesive tape.

4. The hand wheel 1 is rotated to move a certain distance along the lead screw 3 to a certain scale (for example, the 2 nd scale from right to left). As the distance between the hand wheel 1 and the movable seat 5 is changed, the spring 2 drives the movable seat 5 to drive the skin adhered to the bottom seat cushion 4 to transversely displace through elasticity. Marking along the marking position on the seat cushion 4 by a medical marking pen, and recording the scale reading on the slide rail 7 at the moment. The skin tensiometer was removed and the corresponding marks were connected to obtain 2 parallel (or nearly parallel) lines.

5. Repeating the operations of the steps 3 and 4 along different directions in the planned operation area to obtain a plurality of groups of measurement values and corresponding parallel lines; these measured values are compared, where the parallel line corresponding to the smallest value is the ideal incision parallel line. In the subsequent operation, the doctor only needs to make an operation incision along the two parallel lines between the two parallel lines.

Claims

1. A skin tensiometer for preoperative incision planning is characterized by comprising a fixed seat, a movable seat, a slide rail and a lead screw; the fixed seat and the movable seat are both cylindrical, the slide rail is in the shape of a long flat plate, and the bottom surfaces of two ends of the slide rail are respectively connected with the top surfaces of the fixed seat and the movable seat; a through sliding groove is formed in the center of the sliding rail along the length direction, one tail end of the sliding groove is positioned above the moving seat, and the limiting in the relative movement is realized through a bolt arranged on the moving seat;

the screw rod is arranged below the slide rail in parallel, and the middle part of the screw rod penetrates through the transverse through hole in the movable seat; one end of the screw rod is arranged in a counter bore on the side surface of the fixed seat, and the other end of the screw rod is sleeved with a hand wheel which can rotate and move relative to the screw rod; a spring is sleeved on the lead screw between the hand wheel and the moving seat, and a plane is arranged on the lead screw;

the side surface of the movable seat is provided with a positioning mark, the side surface of the sliding rail is provided with a scale, and the positioning mark and the scale are matched to measure the distance change between the fixed seat and the movable seat; scale marks are uniformly arranged on the plane of the screw rod at intervals and are used for measuring the displacement distance of the hand wheel; the bottom of the fixed seat and the bottom of the movable seat are respectively sleeved with a seat cushion, the outer edges of the two seat cushions are respectively provided with two marking positions, and each seat cushion can be adjusted to enable the connecting line between the marking positions to be vertical to the scale of the sliding rail.

2. The skin tensiometer for preoperative incision planning according to claim 1, characterized in that the fixed and movable seats are circular, oval, square or rectangular in cross section.

3. The skin tensiometer for preoperative incision planning according to claim 1, wherein a pin is provided at the bottom of one end of the slide rail, and an arc groove is annularly provided on the surface thereof; the top surface of the fixing seat is provided with a counter bore, the side surface of the counter bore is provided with a through pin hole, and the pin column is locked by the matching of a wave ball screw arranged in the pin hole and the arc groove after being inserted into the counter bore.

4. The skin tension gauge for preoperative incision planning as recited in claim 1, wherein a counter bore is formed on the top surface of the movable seat, a through pin hole is formed on the side surface of the counter bore, the plug pin is inserted into the counter bore and locked by a wave ball screw inserted into the pin hole.

5. The skin tensiometer for preoperative incision planning according to claim 1, characterized in that the scale on the side of the slide rail is evenly spaced scale markings and the corresponding scale spacing is marked with numbers.

6. The skin tensiometer for preoperative incision planning of claim 1, wherein the lead screw is circular, oval, square or rectangular in cross section.

7. The skin tension gauge for preoperative incision planning as recited in claim 1, wherein a counter bore is provided on the side of the holder, and a through pin hole is provided on the side of the counter bore; the surface of the end part of the screw rod is annularly provided with an arc groove, and the screw rod is locked by matching a ball screw arranged in the pin hole with the arc groove after being inserted into the counter bore.

8. The skin tensiometer for preoperative incision planning according to claim 1, wherein the upper end surface of the seat cushion is provided with an annular protrusion, the inner part of which is sunken to serve as a mounting position of the fixed seat and the movable seat; the bottom of the fixed seat and the bottom of the movable seat are provided with sunken positioning grooves, and positioning blocks are correspondingly arranged in the sunken parts in the seat cushion, so that after the fixed seat and the movable seat are positioned and installed, a connecting line between the mark positions of each seat cushion is perpendicular to the scale of the sliding rail.

9. The skin tensiometer for preoperative incision planning as claimed in claim 1, wherein the sides of the fixed seat and the movable seat are provided with scale marks parallel to the respective central axis, and each seat cushion can be adjusted to make the connecting line between the marked positions correspond to the scale marks and keep vertical to the ruler of the sliding rail.

10. The skin tensiometer for preoperative incision planning of claim 1, wherein the bottom surface of the seat cushion is provided with medical double-sided tape.