A skin punch for use in enterostomy surgery and a method of use thereof

Abstract

The application discloses a skin trepanning device suitable for enterostomy operation and a use method thereof, and relates to the field of medical devices, in particular to a skin trepanning device suitable for enterostomy operation and a use method thereof. The skin trepanning device comprises a base disc, a blade and a length adjusting mechanism. The base disc is in a cylindrical shape and is internally provided with at least one blade. The blade is arranged at the bottom of the base disc and is used for cutting the skin. When the blade is multiple, the blades are arranged in a circumferential array along the center of the base disc. The length adjusting mechanism is arranged on the base disc and is used for adjusting the length of the blade extending out of the base disc. The spacing adjusting mechanism is arranged on the base disc and is used for synchronously adjusting the spacing between each blade and the center of the base disc. The operating rod is in a cylindrical shape, is arranged on the upper end of the base disc, and the operating rod is concentrically arranged with the base disc. The skin trepanning device has the advantages that the device can be adjusted according to different patients, and one-time forming is realized, so that the stoma is beautiful and regular, and the post-treatment is facilitated.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a skin opening device suitable for enterostomy surgery and its method of use. Background Technology

[0002] Enterostomy: An enterostomy is a surgical procedure performed to insert a segment of the intestine through the abdominal wall to replace the original anus for defecation, commonly known as an artificial anus. Stomas can be classified in various ways: 1. Based on the duration of the stoma, they can be divided into temporary stomas and permanent stomas. 2. Based on the chosen colostomy intestine, they can be divided into jejunostomies, transverse colostomies, and sigmoid colostomies. 3. Based on the stoma type, they can be divided into loop stomas, single-lumen stomas, and double-lumen stomas.

[0003] The main surgical procedure currently used is as follows: Creating a stoma tunnel: Disinfect the skin at the pre-stomy site, lift the skin at the midpoint of the pre-stomy site with hemostatic forceps, and make a circular incision with a radius of approximately 1.5 cm. Then, use an electrocautery knife to vertically remove subcutaneous fat, ensuring the area is roughly equal to the incisional skin area, until reaching the anterior sheath of the rectus abdominis muscle. Make a cross-shaped incision in the anterior sheath, separate the rectus abdominis muscle along the muscle fibers to expose the posterior sheath, and then open it in a cross shape. Stoma formation: Pull the intestinal segment out through the tunnel and suture the intestine to the skin at the corresponding level.

[0004] In summary, the problems with this surgical method currently used in hospitals are as follows: the exact size of the abdominal stoma tunnel that needs to be made cannot be clearly determined. The size of the abdominal wall tunnel is often determined by the doctor based on observation of the intestinal condition and experience, without a precise size or standard shape. Therefore, the shape and quality of the stoma will vary from person to person. The shape and size of the abdominal wall tunnel are closely related to whether the enterostomy will become stenotic or infected after surgery. Summary of the Invention

[0005] The purpose of this invention is to provide a skin opening device suitable for enterostomy surgery and its usage method, addressing the aforementioned problems.

[0006] The technical solution adopted in this invention is as follows:

[0007] A skin opening device suitable for enterostomy surgery, comprising:

[0008] Chassis: It is cylindrical and contains at least one blade inside;

[0009] Blade: The side used for cutting the skin is located at the bottom of the chassis. When there are multiple blades, they are arranged in a circular array along the center of the chassis.

[0010] Length adjustment mechanism: Located on the chassis, used to adjust the length of the blade extending out of the chassis;

[0011] Spacing adjustment mechanism: Located on the chassis, used to synchronously adjust the spacing between each blade and the center of the chassis;

[0012] Operating lever: It is cylindrical and located at the upper end of the chassis, and the operating lever is concentric with the chassis.

[0013] Furthermore, the length adjustment mechanism includes: a housing and a linkage device. The housing is rotatably covered on the outer side of the chassis, and the linkage device is connected to the housing and the blade. When the housing rotates, the length of the blade extending out of the chassis changes.

[0014] Furthermore, a groove is provided radially along the upper end of the chassis, and a spacing adjustment mechanism is located at the end of the blade away from the blade head. The spacing adjustment mechanism is slidably mounted in the groove, and when the spacing adjustment mechanism slides along the groove, the distance between the blade and the center of the chassis changes.

[0015] Furthermore, a locking device is included, which is located on the chassis, for locking the blade position.

[0016] Furthermore, when there are multiple blades, a synchronization mechanism is provided between the multiple blades to maintain the same centrifugal distance between them.

[0017] Furthermore, the edge of the slide is provided with a scale for marking the centrifugal distance between the blades; the outer casing is provided with a length scale for marking the length of the blades extending out of the chassis, and the corresponding position on the chassis is provided with markings for pointing to the length scale.

[0018] Furthermore, the chassis is a cylinder made of transparent material, with a laser emitter for positioning located at the center of the chassis.

[0019] Furthermore, the end of the blade used for cutting is made into a pointed tip.

[0020] Furthermore, it also includes a cover that matches the bottom of the chassis.

[0021] Furthermore, a method of using a skin opening device suitable for enterostomy surgery includes the following steps:

[0022] S1: Preoperative preparation: Determine the stoma location and mark the stoma center, and perform disinfection and skin preparation. Determine the stoma depth required by the endoscopic device based on the thickness of the skin and fat at that location. Determine the stoma aperture required by the endoscopic device based on the patient's physical condition and intestinal condition.

[0023] S2: Based on the determined depth data, rotate the outer shell to adjust the blade extension of the chassis. Observe the length scale corresponding to the mark. When the mark points to the corresponding length scale, it indicates that the blade has extended the corresponding length of the chassis.

[0024] S3: Based on the determined aperture data, adjust the spacing mechanism to change the distance between the blade and the center of the base. Observe the scale. When the spacing adjustment mechanism stops at the corresponding scale, it indicates that the blade spacing has been adjusted to the correct position.

[0025] S4: Remove the cover plate, double-check the position of the blade, activate the locking device, and lock the blade position.

[0026] S5: Turn on the laser emitter and align the laser with the stoma center mark, ensuring that the center of the opening device coincides with the skin mark;

[0027] S6: Insert the pore opener perpendicular to the skin, hold the base and rotate it around its center until a complete circular opening is formed in the skin and fat layer. After removing it, use an electrocautery knife to further process any remaining fat.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] (1) It can be formed in one step to achieve the desired depth and aperture, reducing the complexity of surgical procedures and alleviating patient pain;

[0030] (2) Adjustments are made according to the specific conditions of different patients, and it is suitable for patients with different physical constitutions;

[0031] (3) The stoma formed has a regular shape and neat edges, which can have a positive impact on the patient's postoperative recovery and reduce problems such as stoma stenosis caused by irregular size and shape of the wall tunnel.

[0032] (4) Reduce the workload of medical staff, reduce the number of operation steps, and at the same time reduce the pain of patients. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0035] Figure 3 This is a top view of the present invention;

[0036] Figure 4 The top view of the present invention employing a circular plate linkage mechanism.

[0037] The markings in the diagram are: 1 - chassis, 2 - blade, 3 - length adjustment mechanism, 4 - spacing adjustment mechanism, 5 - operating lever, 31 - outer casing, 32 - linkage device, 6 - slide groove, 7 - locking device, 8 - synchronization mechanism, 9 - scale, 10 - length scale, 11 - punctuation mark, 12 - laser emitter, 13 - cover, 14 - bolt, 15 - nut, 16 - gear, 17 - long rod, 18 - telescopic rod, 19 - disc. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings.

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] Example 1

[0041] In this embodiment, as Figure 1 As shown, a skin opening device suitable for enterostomy surgery includes:

[0042] The chassis 1 is cylindrical, with at least one blade 2 inside. The cylindrical shape of the chassis 1 allows for accurate center location, facilitating the installation of the blade 2 and other equipment. Furthermore, the cylindrical shape makes it easier to grip the outer surface of the hole opener during cutting, ensuring a consistent cutting shape and smooth cut line. In this embodiment, as... Figure 1 As shown, four blades 2 are installed inside the chassis 1. The handle of the blades 2 is located inside the chassis 1, and the cutting head of the blades 2 is located on one side near the bottom of the chassis 1.

[0043] Blade 2: The side used for cutting the skin is set at the bottom of the base plate 1. When there are multiple blades 2, the blades 2 are arranged in a circular array along the center of the base plate 1. In this embodiment, four blades 2 are provided. The four blades 2 are arranged in a circular array along the circumference of the base plate 1. In this way, when the base plate 1 is rotating and cutting, the four blades 2 can move in a circular motion along the same center, ensuring that the stoma edge is beautiful and neat.

[0044] Length adjustment mechanism 3: Located on the base plate 1, it is used to adjust the length of the blade 2 extending out of the base plate 1. Since each patient's condition is different, there are differences in stoma location, fat layer thickness, skin thickness, etc., so the cutting depth of the blade 2 cannot be generalized. Therefore, the length adjustment mechanism 3 is set up so that the length of each blade 2 extending out of the base plate 1 can be adjusted. Based on the test results of the patient, the blade 2 is adjusted to different lengths to adapt to different skin and fat layer thicknesses, so that different patients can use specific blade 2 lengths, achieve the best stoma effect, reduce the need for subsequent treatment, and reduce the burden on medical staff and patients.

[0045] Spacing adjustment mechanism 4: Located on the base plate 1, it is used to synchronously adjust the distance between each blade 2 and the center of the base plate 1. Since each patient's condition is different, the stoma location, skin, and muscle relaxation are all different, so the size of the stoma opener cannot be generalized. Therefore, the spacing adjustment mechanism 4 is set up so that the distance between each blade 2 and the center of the base plate 1 can be adjusted. Based on the test results of the patient, the distance between the blade 2 and the center of the base plate 1 is adjusted to adapt to the skin fat condition of different patients, so that different patients can create a stoma size that matches them, achieve the best stoma effect, reduce the need for subsequent treatment, and reduce the burden on medical staff and patients.

[0046] Operating lever 5: Cylindrical in shape, located at the upper end of the base plate 1, and concentrically positioned with the base plate 1. Since the size of the base plate 1 needs to be set according to the diameter of the stoma, if the doctor directly holds the base plate 1 for cutting, it may not be able to rotate around the center. Therefore, operating lever 5 is provided. The diameter of operating lever 5 is set to 1 cm, and the surface is provided with an anti-slip layer. When the doctor operates, holding operating lever 5 is beneficial for operating the mouth opener, so that the mouth opener can be opened in one step, preventing repeated rotation due to incomplete rotation, and promoting a smooth stoma surface and regular shape.

[0047] Furthermore, the length adjustment mechanism 3 includes: a housing 31 and a linkage device 32. The housing 31 rotatably covers the outer side of the chassis 1, and the linkage device 32 connects the housing 31 and the blade 2. When the housing 31 rotates, the length of the blade 2 extending out of the chassis 1 changes; in this embodiment, as... Figure 2As shown, the preferred design uses a housing 31 that can rotatably cover the outer side of the chassis 1. The linkage device 32 uses a bolt 14 and nut 15. The rotation of the housing 31 drives the bolt 14 to rotate. The nut 15 is fitted onto the bolt 14. When the bolt 14 rotates, the nut 15 can move up and down inside the chassis 1. The nut 15 is connected to the blade 2. In use, rotating the housing 31 causes the gear 16 at the bottom of the housing 31 to drive the bolt 14 to rotate. As the bolt 14 rotates, the nut 15 moves up and down relative to the bolt 14. The nut 15 drives the blade 2 to move up and down, thereby changing the length of the blade 2 extending out of the chassis 1. The advantage of this design is that the extension and retraction of the blade 2 can be finely adjusted using the nut 15, allowing for precise control of the hole-opening depth of the hole opener. Furthermore, this structure is reliable, durable, and has low manufacturing costs.

[0048] Furthermore, a groove 6 is provided radially along the upper end of the chassis 1, and a spacing adjustment mechanism 4 is provided at the end of the blade 2 away from the blade head. The spacing adjustment mechanism 4 is slidably provided in the groove 6. When the spacing adjustment mechanism 4 slides along the groove 6, the distance between the blade 2 and the center of the chassis 1 changes. In this embodiment, the spacing adjustment mechanism 4 is connected to the end of the blade 2 and extends out of the groove 6, so that the user can adjust the spacing of the blade 2 on the upper part of the chassis 1 to adapt to the skin fat conditions of different patients, so that different patients can create a stoma size that matches them, achieve the best stoma effect, reduce the need for subsequent treatment, and reduce the burden on medical staff and patients.

[0049] Furthermore, a locking device 7 is provided on the chassis 1 to lock the position of the blade 2. The locking device 7 can fix the position of the blade 2, prevent the blade 2 from shifting during the opening process, reduce the quality of the stoma, improve the success rate of the opening, and ensure the safety of the patient.

[0050] Furthermore, when there are multiple blades 2, a synchronization mechanism 8 is provided between the multiple blades 2 to maintain the same centrifugal distance between them; such as Figure 2 and Figure 3 As shown, the synchronization mechanism 8 is configured as a long rod 17, with both ends of the long rod 17 hinged to the spacing adjustment mechanism 4 and the operating rod 5, respectively. A slide rail is provided on the operating rod 5, and one end of the long rod 17 can slide within the slide rail. Multiple long rods 17 are of the same size, and a sleeve is used at one end of the slide rail to keep multiple synchronization mechanisms 8 at the same height within the slide rail. When adjusting the spacing adjustment mechanism 4, the sleeve can be lifted or pulled down, similar to the action of opening an umbrella, so that the spacing between each blade 2 remains consistent. The advantage of this configuration is that it uses a simple structure to achieve a consistent distance between multiple blades 2 and the center of the circle, forming a complete circular trajectory when making an incision. The resulting stoma shape after surgery is standardized and aesthetically pleasing, which is beneficial for postoperative maintenance.

[0051] Furthermore, the edge of the slide 6 is provided with a scale 9 for marking the centrifugal distance of the blade 2; the outer shell 31 is provided with a length scale 10 for marking the length of the blade 2 extending out of the base 1, and the base 1 is provided with a mark 11 pointing to the length scale 10. The advantage of this arrangement is that the scale 9 can intuitively show the current distance of the blade 2, and can be adjusted in time in combination with the patient's preset orifice diameter; the length scale 10 pointed to by the mark 11 corresponds to the length of the blade 2 extending out of the base 1, which can intuitively show the current length of the blade 2, making it convenient for medical staff to make adjustments, so as to make the stoma size accurate and reduce the steps of subsequent surgery.

[0052] Furthermore, the base 1 is a cylinder made of transparent material, and a laser emitter 12 for positioning is set at the center of the base 1. Since the intestinal position and opening position are different for each patient, the early positioning of the stoma is particularly important. The laser emitter 12 can emit visible light to locate the center of the stoma. During the operation, the location where the stoma needs to be made is marked, and the laser is aligned with the mark before the opening step is performed. The advantage of this setting is that it can accurately locate the stoma position and prevent the stoma position from deviating, which would affect the patient's subsequent recovery.

[0053] Furthermore, the end of the blade 2 used for cutting is set as a pointed tip. Since the cutter needs to insert part of the blade 2 into the skin before use, using a pointed blade 2 can cut the skin more effectively.

[0054] Furthermore, it also includes a cover 13, which matches the bottom of the chassis 1. When the hole opener is not in use, the cover 13 is placed on the chassis 1 to prevent the blade 2 from scratching medical staff and to prevent external bacterial infection.

[0055] Furthermore, a method of using a skin opening device suitable for enterostomy surgery includes the following steps:

[0056] S1: Preoperative preparation: Determine the stoma location and mark the stoma center, and perform disinfection and skin preparation. Determine the stoma depth required by the endoscopic device based on the thickness of the skin and fat at that location. Determine the stoma aperture required by the endoscopic device based on the patient's physical condition and intestinal condition.

[0057] S2: Based on the determined depth data, rotate the outer shell 31 to adjust the blade 2 to extend out of the chassis 1. Observe the length scale 10 corresponding to the mark 11. When the mark 11 points to the corresponding length scale 10, it indicates that the blade 2 has extended out of the chassis 1 by the corresponding length.

[0058] S3: Based on the determined aperture data, move the pitch adjustment mechanism 4. The distance between the blade 2 and the center of the base plate 1 changes. Observe the scale 9. When the pitch adjustment mechanism 4 stops at the corresponding scale, it indicates that the distance between the blade 2 has been adjusted to the correct position.

[0059] S4: Remove the cover plate, recheck the position of the blade 2 to ensure it is accurate, and activate the locking device 7 to lock the position of the blade 2.

[0060] S5: Turn on the laser emitter 12, align the laser with the stoma center mark, and confirm that the center of the opening device coincides with the skin mark;

[0061] S6: Insert the pore opener perpendicular to the skin, hold the operating rod 5 and rotate it around its center until a complete circular opening is formed in the skin and fat layer. After removing it, use an electrocautery knife to further process any remaining fat.

[0062] Example 2

[0063] Based on Embodiment 1, the nut 15 and the blade 2 are connected by a telescopic connection. Specifically, a telescopic rod 18 is used for the connection, so that the distance between the blades 2 can be effectively adjusted while adjusting the length of the blade 2.

[0064] Similarly, the connection between the spacing adjustment mechanism 4 and the blade 2 is also telescopic. Specifically, a telescopic rod 18 is used for the connection to prevent interference between the spacing adjustment and the length adjustment.

[0065] Furthermore, a locking device 7 is included, which is disposed on the chassis 1 and used to lock the position of the blade 2; in this embodiment, specifically, as shown... Figure 2 As shown, the telescopic rod 18 is a lockable telescopic rod 18. The locking switch is located on the chassis 1. After pressing the switch, the telescopic rod 18 in both parts is locked or unlocked to achieve the purpose of fixing the blade 2. The advantage of this setting is that it can effectively lock the blade 2, prevent the blade 2 from shifting during the opening, reduce the quality of the stoma, improve the success rate of the opening, and ensure the safety of the patient.

[0066] Example 3

[0067] Based on Embodiment 1, the synchronization mechanism 8 is improved, such as... Figure 4 As shown, the synchronization mechanism 8 is set as a circular plate 19 with an arc-shaped through hole matching the number of blades 2. The spacing adjustment mechanism 4 extends into the through hole. When the circular plate 19 is rotated, the spacing adjustment mechanism 4 slides in the through hole, so that the blades 2 move away from or closer to the center of the chassis 1 in a synchronized manner. The advantages of this setting are: saving space, not affecting the normal operation of the operating rod 5, ensuring that the distance of multiple blades 2 from the center of the circle is consistent, forming a complete circular trajectory when opening the hole, and resulting in a standardized and aesthetically pleasing stoma shape after surgery, which is conducive to postoperative maintenance.

[0068] Example 4

[0069] Based on Example 1, the blade 2 is modified to be detachable. After use, the blade 2 is removed, the hole opener is disinfected and dried, and a brand new blade 2 is installed to achieve reuse. The advantage of this design is that it can save costs and prevent waste of resources.

[0070] The above description is merely a preferred embodiment of the invention and is not intended to limit the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A skin opening device suitable for enterostomy surgery, characterized in that: include: Chassis (1): It is cylindrical and has multiple blades (2) inside; Blade (2): The side used for cutting the skin is set at the bottom of the base (1). When there are multiple blades (2), the blades (2) are arranged in a circular array along the center of the base (1). Length adjustment mechanism (3): set on the chassis (1), used to adjust the length of the blade (2) extending out of the chassis (1); Spacing adjustment mechanism (4): set on the chassis (1), used to synchronously adjust the spacing between each blade (2) and the center of the chassis (1); Operating lever (5): It is cylindrical and is located at the upper end of the chassis (1), and the operating lever (5) is concentric with the chassis (1); The length adjustment mechanism (3) includes: a housing (31) and a linkage device (32). The housing (31) is rotatably covered on the outer side of the chassis (1). The linkage device (32) is connected to the housing (31) and the blade (2). When the housing (31) rotates, the length of the blade (2) extending out of the chassis (1) changes. The upper end of the chassis (1) is provided with a sliding groove (6) along the radial direction of the chassis (1). The spacing adjustment mechanism (4) is located at the end of the blade (2) away from the blade head. The spacing adjustment mechanism (4) is slidably located in the sliding groove (6). When the spacing adjustment mechanism (4) slides along the sliding groove (6), the distance between the blade (2) and the center of the chassis (1) changes. When there are multiple blades (2), a synchronization mechanism (8) is provided between the multiple blades (2) to maintain the same centrifugal distance between the multiple blades (2); The linkage device (32) adopts a bolt (14) and nut (15) device. The outer shell (31) rotates to drive the bolt (14) to rotate. The nut (15) is sleeved on the bolt (14). When the bolt (14) rotates, the nut (15) can move up and down in the chassis (1). The nut (15) is connected to the blade (2). When in use, the outer shell (31) is rotated, and the gear (16) at the bottom of the outer shell (31) drives the bolt (14) to rotate. When the bolt (14) rotates, the nut (15) moves up and down relative to the bolt (14). The nut (15) drives the blade (2) to move up and down, so as to change the length of the blade (2) extending out of the chassis (1).

2. A skin opening device for enterostomy surgery as described in claim 1, characterized in that: Includes a locking device (7), which is disposed on the chassis (1) and is used to lock the position of the blade (2).

3. A skin opening device for enterostomy surgery according to claim 1, characterized in that: The edge of the slide (6) is provided with a scale (9) for marking the centrifugal distance of the blade (2); the outer shell (31) is provided with a length scale (10) for marking the length of the blade (2) extending out of the chassis (1), and the chassis (1) is provided with a punctuation mark (11) pointing to the length scale (10) at the corresponding position.

4. A skin opening device for enterostomy surgery according to claim 1, characterized in that: The chassis (1) is a cylinder made of transparent material, and a laser emitter (12) for positioning is provided at the center of the chassis (1).

5. A skin opening device for enterostomy surgery according to claim 1, characterized in that: The blade (2) is pointed at one end for cutting.

6. A skin opening device for enterostomy surgery according to claim 1, characterized in that: It also includes a cover (13) that matches the bottom of the chassis (1).

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