Surgical operation color marking tool

Abstract

To provide a surgical operation color marking tool that can put a mark to the body of a patient as a reference of an incision size in a surgical operation and can measure a length of an intestine that is drawn out to the outside of the body.SOLUTION: A surgical operation color marking tool S100 puts a mark that indicates a size of an incision hole to the body of a patient and has a cylindrical body. The cylindrical body includes: a first annular ink adhesion part 12 installed to one end of the cylindrical body; a second annular ink adhesion part 17 installed to the other end of the cylindrical body and formed into an opening that is larger than an opening of the first ink adhesion part 12; and a plurality of scales 19 formed at predetermined intervals along a longitudinal direction of the cylindrical body in an outer periphery of the cylindrical body.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a color marking tool for surgery. [Background technology]

[0002] Conventionally, there is known a surgical method for incising a patient's abdomen and connecting the intestines to an artificial anus, etc. For example, Patent Document 1 proposes a method for determining the incision site using a positioning tool and ink. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2002-543880 Summary of the Invention [Problem to be solved by the invention]

[0004] When making an incision in the patient's abdomen to create a hole, the doctor must choose an appropriate hole size according to the patient and the contents of the surgery. However, until now, there has been no dedicated tool for determining the hole size, so it has been difficult to draw a mark with a clear shape (i.e., an easy-to-understand shape) that serves as a reference (guideline) for the position of the abdomen to be incised, and the length of the pulled out intestine must be measured using a separate scale, making the entire procedure complicated. There is a need to make the procedure more efficient, such as by reducing the time required.

[0005] Therefore, the object of the present invention is to provide a colored surgical marking tool that can place marks on the patient's body during surgery as a reference for the incision size, and can also measure the length of the intestine pulled out of the body. [Means for solving the problem]

[0006] In one aspect of the present invention, there is provided a surgical color marking tool forming a cylindrical body for attaching a marker to a patient's body indicating the size of an incision hole, the surgical color marking tool having a first annular ink attachment portion provided at one end of the cylindrical body, a second annular ink attachment portion provided at the other end of the cylindrical body with an opening larger than the opening of the first ink attachment portion, and a plurality of scales formed at predetermined intervals on the outer periphery of the cylindrical body along the longitudinal direction of the cylindrical body.

[0007] At least one of the first ink-attached portion and the second ink-attached portion may be provided in a double circular shape.

[0008] At least one of the first ink-attached portion and the second ink-attached portion may have a rough surface.

[0009] The cylindrical body may include a first cylindrical portion having the first ink adhesion portion formed at an end thereof, and a second cylindrical portion having an outer diameter larger than that of the first cylindrical portion and having the second ink adhesion portion formed at an end thereof.

[0010] Each of the scales may be annular grooves formed on the outer periphery of the cylindrical body, and a plurality of the grooves may be formed at equal intervals along the longitudinal direction of the cylindrical body. Effect of the Invention

[0011] According to the present invention, it is possible to provide a surgical color marking tool that can place marks on a patient's body during surgery as a reference for incision size, and can also measure the length of the intestines pulled out of the body. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view of a surgical color marking tool according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a partially sectional oblique view of a surgical color marking tool. [Diagram 3] FIG. 2 is a longitudinal sectional view of a surgical color marking tool. [Figure 4] 13 is a diagram showing an example of an ink adhesion state when the surface of the ink adhesion portion is not roughened and low-viscosity ink is used; FIG. [Diagram 5] FIG. 2 is a schematic diagram showing a state in which ink is attached to a roughened surface. [Figure 6] FIG. 1 shows markers and incisions made on a patient's abdomen. [Figure 7] 1 is a cross-sectional view showing the intestine being pulled out of the body through an incision. [Figure 8] FIG. 2 is a schematic cross-sectional view showing a state in which a surgical color marking tool is pressed against a patient. [Figure 9] FIG. 1 shows the appearance of a liquid on a non-roughened surface. [Figure 10] FIG. 1 is a diagram showing the state of liquid adhering to a roughened surface. [Figure 11] FIG. 13 is a diagram showing an example of a modified example. [Figure 12] FIG. 13 is a diagram showing another example of a modified example. [Figure 13] 1A and 1B are diagrams showing the appearance and cross section of a surgical color marking tool. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Fig. 1 is a perspective view of a colored surgical marking tool according to one embodiment of the present invention, Fig. 2 is a partially sectional perspective view of the colored surgical marking tool, and Fig. 3 is a vertical sectional view of the colored surgical marking tool.

[0014] The surgical color marking tool S100 of this embodiment is a surgical instrument for marking a position to be incised on a patient's body and a marker that serves as a reference (i.e., a guide) for the incision size. The surgical color marking tool S100 has a cylindrical main body 10.

[0015] The main body 10 is a tubular body, and in this example, is cylindrical. The material of the main body 10 is arbitrary, and may be, for example, made of resin or metal, but in this embodiment, it is made of metal. Specifically, the main body 10 is made of stainless steel. The main body 10 has a first cylindrical portion 11 and a second cylindrical portion 16.

[0016] The first cylindrical portion 11 is a cylindrical portion that constitutes a part of the main body 10. A first ink adhering portion 12 is provided on an end of the first cylindrical portion 11.

[0017] The first ink attachment portion 12 is a portion where ink is attached, and in this example, is provided in a double circular shape. Specifically, the first ink attachment portion 12 includes an inner cylinder 12-1 and an outer cylinder 12-2 that are provided in a concentric shape. Both the end surface of the inner cylinder 12-1 and the end surface of the outer cylinder 12-2 are circular, thereby forming a double circle.

[0018] A groove 13 is formed between the inner cylinder 12-1 and the outer cylinder 12-2. The groove 13 is an annular groove having a circular contour when the surgical color marking tool S100 is viewed from above.

[0019] The second cylindrical portion 16 is formed in a cylindrical shape having an outer diameter larger than that of the first cylindrical portion 11. At the end of the second cylindrical portion 16, a second ink adhering portion 17 is formed.

[0020] The second ink attachment portion 17, like the first ink attachment portion 12, is a portion to which ink is attached, and is provided in a double circular shape. As shown in FIG. 2, the second ink attachment portion 17 includes an inner tube 17-1 and an outer tube 17-2. The inner tube 17-1 and the outer tube 17-2 are provided in a concentric shape. The end surface of the inner tube 17-1 and the end surface of the outer tube 17-2 are both circular, thereby forming a double circle. Between the inner tube 17-1 and the outer tube 17-2, an annular groove 18 is formed, the contour of which is circular when the surgical color marking tool S100 is viewed from the bottom side.

[0021] In this embodiment, as shown in FIG. 3, the inner diameter d1 of the first ink-attached portion 12 and the inner diameter d2 of the second ink-attached portion 17 are formed to have different lengths. Specifically, the inner diameter d2 of the second ink-attached portion 17 is longer than the inner diameter d1 of the first ink-attached portion 12. The inner diameter d1 of the first ink-attached portion 12 is, for example, within a range of 19 mm (millimeters, the same applies below) to 21 mm. Such a size is preferable when the treatment target is, for example, the small intestine. The inner diameter d2 of the second ink-attached portion 17 is, for example, within a range of 21 mm to 23 mm. Such a size is preferable when the treatment target is, for example, the large intestine.

[0022] In this manner, with the first ink-attached portion 12 and the second cylindrical portion 16 being configured to have openings of different sizes, it is possible to appropriately handle, for example, both treatments targeting the small intestine and treatments targeting the large intestine by using the first ink-attached portion 12 and the second ink-attached portion 17 appropriately. Note that the small intestine and the large intestine are shown as examples, and the surgical color marking tool S100 according to this embodiment is not limited to use in surgeries targeting these.

[0023] Regarding the double circular inner cylinder 12-1 and outer cylinder 12-2, the wall thickness of the inner cylinder 12-1 and the wall thickness of the outer cylinder 12-2 may be the same or different. For example, the wall of the inner cylinder 12-1 may be thicker than the wall of the outer cylinder 12-2. The same applies to the inner cylinder 17-1 and the outer cylinder 17-2.

[0024] In this embodiment, as shown in Fig. 3, the outer diameter of the first cylindrical portion 11 and the outer diameter of the second cylindrical portion 16 are different. Specifically, the outer diameter of the first cylindrical portion 11 is formed to be shorter than the outer diameter of the second cylindrical portion 16. The outer diameter of the main body 10 may be the same over the entire range (except for the portion of the scale 19 described later), but the configuration as shown in Fig. 3 according to this embodiment has the following advantages.

[0025] 3, the first cylindrical portion 11 and the second cylindrical portion 16 have different outer diameters, so that the user can easily distinguish which end of the main body 10 has a smaller diameter and which end has a larger diameter. Therefore, when using the surgical color marking tool S100, it is easy to identify which end is to be ink-attached.

[0026] (rough surface processing) As described below, the first ink-adhered portion 12 and the second ink-adhered portion 17 are portions to which ink is adhered in order to mark the human body with a marker that serves as a reference for the size of the incision hole. Therefore, in one embodiment, it is preferable that the surfaces of the first ink-adhered portion 12 and the second ink-adhered portion 17 are roughened so as to improve wettability with ink.

[0027] The method of roughening the surface is not particularly limited, and may be, for example, a mechanical treatment, a chemical treatment, or a combination thereof. As a mechanical treatment, for example, a blasting treatment in which granular matter is collided with the target surface may be used. Alternatively, a treatment in which linear or mesh-like irregularities are formed on the target surface may be used. As a chemical treatment, for example, etching using a chemical agent may be used. Alternatively, the target surface may be corroded with a chemical agent to roughen the surface.

[0028] Fig. 4 is a diagram showing an example of the state of ink adhesion when the surface of the ink-adhered portion is not roughened and low-viscosity ink is used. Fig. 5 is a schematic diagram showing the state of ink adhesion on a roughened surface. Depending on the properties of the ink used, if the surface of the ink-adhered portion is not roughened, ink 30 may not adhere well to the surface of the ink-adhered portion if the ink has a low viscosity.

[0029] In contrast, when the surface is roughened as shown in FIG. 5, the wettability of the ink-applied surface of the first ink-applied portion 12 is improved, and the ink 30 is applied widely over the entire surface, making it possible to apply a marker with a good shape.

[0030] (About scale 19) Referring again to FIG. 3, a plurality of scales 19 are provided on the outer peripheral surface of the main body 10. The plurality of scales 19 are arranged at a predetermined interval along the longitudinal direction of the main body 10 on the outer periphery of the main body 10. Specifically, the plurality of scales 19 are arranged at equal intervals, for example, 5 mm intervals. In this example, the scales 19 are formed as annular grooves carved in the radial direction from the outer peripheral surface of the main body 10. The scales 19 may be formed, for example, by printing lines on the outer peripheral surface of the main body 10, but the configuration of this embodiment has the advantage that the printed portion is less likely to peel off or deteriorate when the surgical color marking tool S100 is washed or sterilized. The scales 19 may all be formed with the same groove width, but for example, wide grooves and narrow grooves may be formed. As an example, the wide grooves (functioning as main lines) may be formed in 10 mm increments, and the narrow grooves (functioning as secondary lines) may be formed in 5 mm increments (excluding the positions where the main lines are located).

[0031] The multiple scales 19 may be formed on both the first cylindrical portion 11 and the second cylindrical portion 16, but in the case of the present embodiment in which the second cylindrical portion 16 occupies most of the longitudinal range of the main body portion 10 (e.g., 80% or more of the length of the main body portion 10), the multiple scales 19 may be formed only on the outer periphery of the second cylindrical portion 16. With this configuration, it is not necessary to form the scales 19 on the first cylindrical portion 11, making it easier to manufacture the surgical color marking tool S100.

[0032] Furthermore, even if the scale 19 is formed on both the first cylindrical portion 11 and the second cylindrical portion 16, if the longitudinal length of the main body portion 10 (surgical color marking tool S100) is sufficiently long, it is not necessary to form the scale 19 in the middle portion of the main body portion 10 (i.e., the range from each end face that exceeds the typical length of the intestine to be pulled out from the patient's body).

[0033] (How to use the S100 surgical color printing tool) Next, an example of a method of using the surgical color marking tool S100 will be described with reference to Fig. 6 and Fig. 7. Fig. 6 is a diagram showing a marker and an incision made on the abdomen of a patient. Fig. 7 is a cross-sectional view showing the intestine being pulled out of the body through the incision. In the following, an example in which the treatment target is the small intestine is shown. Fig. 8 is a schematic cross-sectional view showing the state in which the surgical color marking tool is pressed against the patient.

[0034] First, the user applies ink to the first ink-adhering portion 12 of the surgical color marking tool S100. For example, the ink may be applied to the first ink-adhering portion 12 by pressing the first ink-adhering portion 12 against a member soaked in ink (for example, a pad member such as an ink pad). The ink used is, for example, general pyoktanin (chemical name: methylrosaniline chloride). However, the ink used is not limited to pyoktanin, and may be any material that is safe to be applied to the human body and resistant to wetting, friction, etc. during treatment. If the surface of the first ink-adhering portion 12 is roughened, even ink with low viscosity is unlikely to become in the state shown in FIG. 4, and the ink adheres well to the surface of the first ink-adhering portion 12.

[0035] Next, the user (who may be different from the person who applied the ink to the surgical color marking tool S100) presses the first ink-applied portion 12 of the surgical color marking tool S100 against a predetermined position on the abdomen of the patient P, as shown in Fig. 6(a), to apply the marker M. The marker M is in the shape of a double circle, corresponding to the shape of the first ink-applied portion 12.

[0036] Next, as shown in Fig. 6(b), the abdomen is incised by resecting the area within the marker M (inside the inner circle) to form an incision hole Pa. In the example of Fig. 6, a vertical linear incision hole Pa is illustrated, but the incision hole may be cross-shaped.

[0037] 7, the intestine is pulled out from the body through the incision hole Pa. Here, the intestine that has been cut in advance is shown being pulled out, but the intestine before being cut may also be pulled out.

[0038] In this type of procedure, the intestine may be cut at a predetermined length. The surgical color marking tool S100 of this embodiment has a plurality of scales 19 on its outer periphery. Therefore, as shown in Fig. 7, by placing the surgical color marking tool S100 next to the pulled out intestine, the surgeon can cut the intestine at a predetermined length (for example, at the position of line A). The intestine may be cut after the position of line A is marked with a pen or the like.

[0039] <Effects of the S100 surgical color printing tool> As described above, according to the surgical color marking tool S100 of this embodiment, the first ink-attached portion 12 and the second ink-attached portion 17 formed to have different opening sizes can be used to mark the patient P's body with a marker M that serves as a reference for the size of the incision hole. In addition, since the outer circumference of the surgical color marking tool S100 is provided with a plurality of scales 19, the length of the intestine drawn out from the body can also be measured. Conventionally, separate members were used to determine the diameter of the incision site and to measure the intestine cutting size, but according to the surgical color marking tool S100 of this embodiment, one instrument can be used for both purposes, making it easy to perform the surgical procedure. In addition, a stoma of an appropriate size according to the patient's condition can be created, and it is possible to prevent, for example, a giant stoma and stoma ischemic necrosis.

[0040] Furthermore, according to the configuration of this embodiment, the first ink-attached portion 12 and the second ink-attached portion 17 are double-circular. The ink-attached portion may be a single circle instead of a double circle, but a double-circular shape has the following advantage: In this type of surgery, the hole diameter is adjusted depending on the organ to be treated or the physique of the patient, and the configuration of this embodiment is preferable in that a double-line marker M is formed.

[0041] The double circular shape also provides the following effect. If the ink attachment portion does not have the groove 13 and is a thick-walled cylinder in which the inner tube 12-1 and the outer tube 12-2 are integrated, there is a risk that too much ink will be attached to the ink attachment portion (the end surface of the cylinder). On the other hand, in the case of a thin-walled cylinder consisting of only the inner tube 12-1, the line width of the marker M will also be narrowed, and it may become difficult to see. In this regard, the configuration of this embodiment makes it possible to ensure sufficient visibility while preventing more ink than necessary from being attached to the patient's body.

[0042] Furthermore, according to the configuration of this embodiment, since a rough surface is formed on the ink attachment portion, the hydrophilicity of the ink is improved, and it becomes possible to apply the marker M with a good shape.

[0043] Furthermore, according to the configuration of this embodiment, the first cylindrical portion 11 and the second cylindrical portion 16 having different outer diameters are provided, so that when using the surgical color marking tool S100, it is difficult to mistake the end to which ink is applied.

[0044] In addition, according to the configuration of this embodiment, the scale is formed as grooves, so the printed portion is less likely to peel off or deteriorate when the surgical color marking tool S100 is cleaned or sterilized, compared to when the scale is formed with printed lines. EXAMPLES

[0045] Although the present invention is not limited to the roughened surface of the ink-adhering portion, the following embodiment shows an example of the effect of roughening. Fig. 9 is a diagram showing the state of liquid adhering to a non-roughened surface. Fig. 10 is a diagram showing the state of liquid adhering to a roughened surface. Figs. 9 and 10 show the state in which liquid has been dropped at several points on a circular ring-shaped surface.

[0046] As shown in Figure 9, liquid dropped onto a non-roughened surface does not spread very much on the surface. This is because the non-roughened surface has low wettability with respect to the liquid, and in this state the contact angle of the liquid with respect to the surface is large, so the liquid does not spread over a wide area.

[0047] If the surface is not roughened, there is a risk that the marker applied to the patient's body may be broken off or that the ink may bleed due to too much ink being held locally in the ink-applied area. Therefore, the inventors of the present invention roughened the surface of the ink-applied area by performing a blasting treatment.

[0048] The blasting process was carried out using a sandblasting machine "SG-106" manufactured by Hozan Corporation, by colliding granular alumina against the surface of SUS-304 to roughen the surface. The granular alumina used was #220 (product number "SG-118-220"), #150 (product number "SG-118-150"), and #80 (product number "SG-118-80"). Figure 10 shows the state where liquid was dripped from above onto several points on the surface that had been blasted with #80.

[0049] As can be seen from the state of Fig. 10, on the roughened surface, the dropped liquid spreads over a wider area on the surface compared to the state of Fig. 10. In this way, the roughened surface has improved wettability to liquid, and as a result, the ink is more likely to be held uniformly on the surface. Therefore, it is expected that the marker will be less likely to break off or bleed due to uneven distribution of ink.

[0050] (Modification) The above configuration can be appropriately modified within the scope of the present invention. For example, the roughening may be performed only on one of the first ink-attached portion 12 and the second ink-attached portion 17. The same applies to the double-circular shape, and one of the first ink-attached portion 12 and the second ink-attached portion 17 may be double-circular and the other may be single-circular. The configuration illustrated in FIG. 1 etc. has a stepped outer periphery, but the surgical color marking tool of the present invention may have a shape with a constant outer diameter and only the size of the openings at both ends may be different.

[0051] Fig. 11 shows an example of a modified example. Fig. 11(a) is a front view, and Fig. 11(b) is a plan view. As shown in Fig. 11, the ink-attached portion 112 at the end of the main body 110 does not have to be formed as a completely closed circle. In this example, a plurality of notches 112a are formed in the circumferential direction. In such a surgical color marking tool, a broken line marker is formed.

[0052] FIG. 12 is a diagram showing another example of the modified example. FIG. 12(a) is a front view, FIG. 12(b) is a plan view, and FIG. 12(c) is a bottom view. As shown in FIG. 12, the ink attachment parts 212 and 217 at the ends of the main body part 210 may have a shape other than a circle. In this example, the first ink attachment part 212 and the second ink attachment part 217 are both polygonal (hexagonal in this example). The size of the opening of the first ink attachment part 212 and the size of the opening of the second ink attachment part 217 are not the same, and the opening of the second ink attachment part 217 is larger. In one embodiment, it is preferable that the first ink attachment part 212 and the second ink attachment part 217 are both provided so that the center of their openings is located on the central axis of the main body part 210.

[0053] This application also discloses the design of the surgical color marking tool S100. Figure 13 shows the appearance and cross section of the surgical color marking tool. Figure 13(a) is a front view, Figure 13(b) is a plan view, and Figure 13(c) is a bottom view. Figure 13(d) is a cross section taken along line AA, and Figure 13(e) is a perspective view. As an example of the design of the surgical color marking tool, it may be a form in which all the scales (annular grooves) on the outer circumferential surface are omitted.

[0054] Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. In addition, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effects of the new embodiments resulting from the combination also have the effects of the original embodiments. [Explanation of symbols]

[0055] 10 Main body (cylindrical body) 11 First cylindrical part 12 First ink attachment part 12-1 Inner cylinder 12-2 Outer cylinder 13 Groove 16 Second cylindrical part 17 Second ink attachment part 17-1 Inner cylinder 17-2 Outer cylinder 18 groove 19 scales 30 Ink 110 Main body 112 Ink-attached area 112a Notch 210 Main body 212 First ink attachment portion 217 Second ink attachment part Line A M Marker P patient Pa incision hole S100 Colored surgical marking tool

Claims

1. A cylindrical surgical color marking tool for marking a patient's body with a marker indicating the size of an incision hole, The cylindrical body is a first annular ink attachment portion provided at one end of the cylindrical body; a second ink deposition portion having an annular shape and an opening larger than an opening of the first ink deposition portion, the second ink deposition portion being provided at the other end of the cylindrical body; a plurality of scales formed at predetermined intervals on the outer periphery of the cylindrical body along the longitudinal direction of the cylindrical body; having Colored marking tools for surgery.

2. At least one of the first ink deposition portion and the second ink deposition portion is provided in a double circular shape.

2. The surgical color marking tool according to claim 1.

3. At least one of the first ink-adhered portion and the second ink-adhered portion has a rough surface.

3. The surgical color marking tool according to claim 1 or 2.

4. The cylindrical body is a first cylindrical portion having the first ink attachment portion formed at an end thereof; a second cylindrical portion having an outer diameter larger than that of the first cylindrical portion, the second ink attachment portion being formed at an end of the second cylindrical portion; Including, 3. The surgical color marking tool according to claim 1 or 2.

5. Each of the scales is an annular groove formed on the outer periphery of the cylindrical body, The plurality of grooves are formed at equal intervals along the longitudinal direction of the cylindrical body.

3. The surgical color marking tool according to claim 1 or 2.

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