CN106388906B - Skin breaking device - Google Patents

Abstract

The present invention provides a skin-breaking device, which comprises: a knife handle having a gripping portion and a mounting portion connected to each other, a scalpel being connected to the mounting portion, and a plurality of buckle grooves being provided on the mounting portion; a protective cover being sleeved on the mounting portion, an opening being provided at the end of the protective cover for the tip of the scalpel to pass through, a buckle convex portion being provided inside the protective cover, and the buckle convex portion being clamped in the buckle groove. The skin-breaking device of the present invention can accurately control the incision depth during interventional surgery via radial artery access, prevent arterial damage, and facilitate the operator's operation.

Description

Skin breaking device

Technical Field

The present invention relates to a skin-breaking device, and in particular to a skin-breaking device specially used in radial artery access interventional surgery in the field of medical devices.

Background technique

Coronary artery intervention is currently the most important method for treating fatal coronary artery lesions, among which radial artery access has become the most important surgical approach, accounting for more than 90% of the total number of coronary artery surgeries. The anatomical characteristics of the radial artery access skin puncture point are that the subcutaneous tissue is thin and the local nerves and blood vessels are important. The nerves and blood vessels are very close to the skin incision. When the skin is broken, if an ordinary scalpel is used, the doctor may cause these important nerves and blood vessels to be damaged if he is not careful, which is easy to cause serious surgical complications.

The main reason is that when the surgeon is breaking the skin, because the surgeon's arms are completely suspended in the air during the operation, the scalpel has no support, and the surgeon cannot effectively control the length of the scalpel blade, which can easily cause the surgeon to inaccurately control the depth and length of the incision. If the surgical depth is not well controlled, serious surgical complications can easily occur.

Summary of the invention

In view of the technical shortcomings of the existing skin-breaking knives, the purpose of the present invention is to provide a skin-breaking device, which can not only play a role in skin-breaking in interventional surgery via radial artery access, but also can well control the depth of the incision.

The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

The present invention provides a skin-breaking device, the skin-breaking device comprising:

A knife handle having a gripping portion and a mounting portion connected to each other, a scalpel being connected to the mounting portion, and a plurality of buckle grooves being provided on the mounting portion;

A protective cover is sleeved on the mounting portion, an end of the protective cover is provided with an opening through which the tip of the scalpel can pass, a buckle convex portion is provided inside the protective cover, and the buckle convex portion is buckled in the buckle groove.

In a preferred embodiment, a plurality of the snap grooves are arranged on the mounting portion at intervals along the direction in which the scalpel extends out of the protective cover.

In a preferred embodiment, the plurality of snap grooves include a closed position snap groove, a first extended position snap groove and a second extended position snap groove, wherein the first extended position snap groove is located between the closed position snap groove and the second extended position snap groove; when the snap protrusion is snapped in the closed position snap groove, the scalpel is located in the protective cover; when the snap protrusion is snapped in the first extended position snap groove or the second extended position snap groove, the tip of the scalpel extends out of the opening of the protective cover.

In a preferred embodiment, the distance between the first extended position snap groove and the second extended position snap groove is 0.1 mm to 1 mm.

In a preferred embodiment, the distance between the first extended position snap groove and the closed position snap groove is 1 mm to 10 mm.

In a preferred embodiment, the height of the buckle protrusion is 0.1 mm to 1 mm.

In a preferred embodiment, a mounting groove is provided on one side of the mounting portion, a boss is provided in the mounting groove, the knife tip is provided at one end of the scalpel, and a coupling groove is provided at the other end thereof. When the other end of the scalpel is inserted into the mounting groove, the coupling groove is snap-fitted with the boss.

In a preferred embodiment, a plurality of the snap grooves are arranged on the other side of the mounting portion.

In a preferred embodiment, the outer side wall of the protective sleeve is provided with a plurality of friction ridges.

In a preferred embodiment, the snap groove has an exit side wall, and the snap protrusion is provided with an inclined side wall matching the exit side wall.

The characteristics and advantages of the skin-breaking device of the present invention are: the skin-breaking device solves the problem of poor control of the depth of the incision by the surgeon during the operation, which causes arterial damage. During the skin-breaking operation, the skin-breaking device can provide a support point for the scalpel, avoiding the scalpel from being suspended in the air, and facilitating the operation of the surgeon.

The skin-breaking device of the present invention is based on the original common scalpel, the scalpel is installed on the handle, and a protective cover is set on the scalpel, and buckle convex parts and multiple buckle grooves that can be buckled with each other are designed on the protective cover and the handle. The buckle convex parts are buckled in different buckle grooves, so that the skin-breaking device is cleverly formed into a device that can control the length of the scalpel tip exposed from the protective cover when the doctor uses the scalpel to break the skin, thereby effectively controlling the depth of the surgical incision. The biggest feature of the skin-breaking device is that when the doctor uses the skin-breaking device to break the skin, he does not need to worry about the complications caused by the incision being too deep, which greatly increases the safety and convenience of the operation.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a structural schematic diagram 1 of the handle of the skin breaking device of the present invention.

FIG. 2 is a second structural schematic diagram of the handle of the skin breaking device of the present invention.

FIG. 3 is a schematic diagram showing the connection between the handle of the skin-breaking device of the present invention and the scalpel.

FIG. 4 is a schematic structural diagram of the skin breaking device of the present invention.

FIG5 is a schematic side cross-sectional view of the skin breaking device of the present invention.

FIG. 6 is an enlarged view of portion A of FIG. 5 .

FIG. 7 is a schematic structural diagram of the first embodiment of the skin breaking device of the present invention.

FIG. 8 is a schematic diagram of the engagement between the buckle protrusion of the skin-breaking device of the present invention and the buckle groove at the first extended position.

FIG. 9 is a schematic structural diagram of a second embodiment of the skin breaking device of the present invention.

FIG. 10 is a schematic diagram of the engagement between the buckle protrusion of the skin-breaking device of the present invention and the buckle groove at the second extended position.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

As shown in Figures 1 to 10, the present invention provides a skin-breaking device, which includes a handle 1 and a protective cover 2, wherein: the handle 1 has a gripping portion 11 and a mounting portion 12 connected to each other, a scalpel 3 is connected to the mounting portion 12, and a plurality of buckle grooves 121 are provided on the mounting portion 12; the protective cover 2 is sleeved on the mounting portion 12, an opening 21 is provided at the end of the protective cover 2 for the tip 31 of the scalpel 3 to pass through, a buckle protrusion 22 is provided in the protective cover 2, and the buckle protrusion 22 is buckled in the buckle groove 121.

Specifically, as shown in Figures 1 and 2, the handle 1 is composed of a gripping portion 11 and a mounting portion 12, and the gripping portion 11 and the mounting portion 12 can be integrally formed. In this embodiment, a plurality of protrusions or a plurality of grooves 111 can be provided on both sides of the gripping portion 11, so that there is a certain friction force when the human hand holds it, and the gripping is stable. The mounting portion 12 is located above the gripping portion 11, and its width is smaller than the width of the gripping portion 11. A mounting groove 122 is provided on one side of the mounting portion 12, and a plurality of buckle grooves 121 are provided on the other side of the mounting portion 12, and a boss 123 is provided in the mounting groove 122. As shown in Figure 3, a knife tip 31 is provided at one end of the scalpel 3, and a coupling groove 32 is provided at the other end. When the other end of the scalpel 3 is inserted in the mounting groove 122, the coupling groove 32 is buckled with the boss 123, thereby realizing the connection and fixation between the scalpel 3 and the handle 1, and at this time, the knife tip 31 of the scalpel 3 is exposed above the mounting portion 12.

Please refer to FIG. 4 and FIG. 5 , the protective cover 2 has a hollow inner cavity 24, one end 25 of which has an insertion port, and the other end 26 of which is provided with an opening 21 through which the tip 31 of the scalpel 3 can pass. The protective cover 2 is mounted on the mounting portion 12 through its insertion port, so that the mounting portion 12 and the scalpel 3 thereon are located in the hollow inner cavity 24 of the protective cover 2. The inner side wall of the protective cover 2 is provided with a buckle protrusion 22, and the height of the buckle protrusion 22 protruding from the inner side wall of the protective cover 2 is 0.1 mm to 1 mm. In this embodiment, the height of the buckle protrusion 22 protruding from the inner side wall of the protective cover 2 is 0.4 mm. The buckle protrusion 22 of the protective cover 2 can be buckled in a plurality of buckle grooves 121 of the mounting portion 12, so that the protective cover 2 can move up and down relative to the mounting portion 12, so that the tip 31 of the scalpel 3 on the mounting portion 12 extends out of the other end 26 of the protective cover 2 or retracts into the protective cover 2. In the present invention, the outer wall of the protective cover 2 is provided with a plurality of friction ridges 23 , which are evenly spaced on two opposite sides of the outer wall of the protective cover 2 , which can facilitate operators to hold and slide the protective cover 2 .

In the present invention, a plurality of snap grooves 121 are arranged at intervals on the mounting portion 12 along the direction in which the scalpel 3 extends out of the protective cover 2. As shown in FIG2 , the plurality of snap grooves 121 include a closed position snap groove 1211, a first extended position snap groove 1212, and a second extended position snap groove 1213, wherein the first extended position snap groove 1212 is located between the closed position snap groove 1211 and the second extended position snap groove 1213; from the end of the mounting portion 12 connected to the grip portion 11 to the free end of the mounting portion 12, the second extended position snap groove 1213, the first extended position snap groove 1212, and the closed position snap groove 1211 are arranged in sequence, and the closed position snap groove 1211, the first extended position snap groove 1212, and the second extended position snap groove 1213 are arranged parallel to each other. Furthermore, the distance between the first extended position snap groove 1212 and the second extended position snap groove 1213 is 0.1mm~1mm. In a specific embodiment, the distance between the first extended position snap groove 1212 and the second extended position snap groove 1213 is 1mm. At this time, the length of the scalpel 3 extending out of the protective cover 2 is controllable, about 1mm, so the maximum depth of the incision during the puncture operation will not exceed 1mm, and will not cause arterial damage; the distance between the first extended position snap groove 1212 and the closed position snap groove 1211 is 1mm~10mm. In a specific embodiment, the distance between the first extended position snap groove 1212 and the closed position snap groove 1211 is 2mm.

As shown in Figures 5 and 6, when the snap-on protrusion 22 is snapped in the closed position snap-on groove 1211, the scalpel 3 is located in the protective cover 2; as shown in Figures 7 and 8, when the snap-on protrusion 22 is snapped in the first extended position snap-on groove 1212 or the second extended position snap-on groove 1213, the tip 31 of the scalpel 2 extends out of the opening 21 of the protective cover 2.

Specifically, in the initial position, as shown in Figures 4 to 6, that is, when the scalpel 3 is located in the protective cover 2, the snap-on protrusion 22 of the protective cover 2 is snapped into the closed position snap-on groove 1211 of the mounting portion 12. At this time, the scalpel 3 is completely hidden in the hollow inner cavity 24 of the protective cover 2 to prevent injury to the operator.

When a skin-breaking surgery is required, as shown in Figures 7 and 8, the protective cover 2 is pushed toward the direction of the gripping portion 11. Due to the external force, one end 25 of the protective cover 2 is elastically deformed. In this embodiment, a plurality of snap grooves 121 provided on the mounting portion 12 have an exit side wall 1214, and the snap protrusion 22 located on the protective cover 2 is provided with an inclined side wall 221. When the snap protrusion 22 is snapped in the snap groove 121, the exit side wall 1214 just matches the inclined side wall 221. The advantage of such a setting is that it is easy for the snap protrusion 22 to slide in or out of the snap groove 121. At this time, after the protective cover 2 is pushed toward the grip portion 11, the buckle protrusion 22 therein will withdraw from the closed position buckle groove 1211. When the protective cover 2 continues to be pushed toward the grip portion 11, the buckle protrusion 22 will be locked in the first extended position buckle groove 1212. At this time, the tip 31 of the scalpel 3 will extend out of the protective cover 2 from the opening 21 of the protective cover 2. This is the first position of the scalpel 3. In this position, the tip 31 of the scalpel 3 will extend out of the other end 26 of the protective cover 2 by about 1 mm. At this time, the operator can use this state to perform skin surgery.

The specific operation method is as follows: the arc surface of the other end 26 of the protective sleeve 2 is used as a fulcrum to rest on the patient's skin, and the scalpel 3 is rotated upward counterclockwise with this as the support point. At this time, the tip 31 of the scalpel 3 will cut into the skin. When it cuts into the skin, pull the scalpel 3 downward to make an incision of about 2mm to 3mm in the skin. At this time, insert the puncture needle and perform interventional surgery. Because at this time, when performing skin-breaking surgery, because there is a support point, the depth and length of the incision can be accurately controlled to prevent damage to important tissues and facilitate the operation of the operator. Because in this state, the tip of the knife only leaks about 1mm, so when performing puncture surgery at this time, the maximum depth of the incision will not exceed 1mm, so it will not cut into the artery and will not cause damage to important tissues.

When the protective cover 2 is continuously pushed toward the direction of the gripping portion 11, one end 25 of the protective cover 2 is elastically deformed, and the buckle protrusion 22 in the protective cover 2 will withdraw from the first extended position buckle groove 1212. When the protective cover 2 is continuously pushed toward the direction of the gripping portion 11, the buckle protrusion 22 will be buckled in the second extended position buckle groove 1213. This is the second gear position of the scalpel 3. In this position, the tip 31 of the scalpel 3 will extend out of the other end 26 of the protective cover 2 by about 2 mm. The state at this time is shown in Figures 9 and 10. The specific operation method is the same as that of the first gear. This gear is mainly used for puncture points of arteries deeper under the skin, such as the femoral artery.

When the operator pushes the protective cover 2 to the second position by mistake and needs to puncture a shallow artery, the second position needs to be moved to the first position, and the protective cover 2 can be pushed away from the grip portion 11, so that the buckle protrusion 22 of the protective cover 2 is matched with the first extended position buckle groove 1212 of the mounting portion 12, and the protective cover 2 is retracted to the first position. In this way, the protective cover 2 can be switched between the buckle grooves 121 of the handle 1, and interventional surgery at a shallow artery puncture point can be performed.

The skin-breaking device of the present invention solves the problem of poor control of the depth of the incision by the surgeon during surgery, which causes arterial damage. During skin-breaking surgery, the skin-breaking device can provide a support point for the scalpel to avoid the scalpel from being suspended in the air, and can effectively and accurately control the length of the scalpel tip extending out of the protective cover to achieve the purpose of accurately controlling the skin-breaking depth, making it convenient for the surgeon to operate. The invention of the device is that it is used for skin-breaking during radial artery puncture surgery. The anatomical characteristics of the wrist are that the subcutaneous tissue is thin and there are a large number of nerves and blood vessels. If the incision is too deep, the nerves and blood vessels will be damaged. The skin-breaking device can accurately control the skin-cutting depth during surgery to prevent damage to important tissues such as nerves and blood vessels, thereby ensuring the safety of the surgery.

The skin-breaking device of the present invention is based on the original common scalpel, the scalpel is installed on the handle, and a protective cover is set on the scalpel, and buckle convex parts and multiple buckle grooves that can be buckled with each other are designed on the protective cover and the handle. The buckle convex parts are buckled in different buckle grooves, so that the skin-breaking device is cleverly formed into a device that can control the length of the scalpel tip exposed from the protective cover when the doctor uses the scalpel to break the skin, thereby effectively controlling the depth of the surgical incision. The biggest feature of the skin-breaking device is that when the doctor uses the skin-breaking device to break the skin, he does not need to worry about the complications caused by the incision being too deep, which greatly increases the safety and convenience of the operation.

The above are only several embodiments of the present invention. Those skilled in the art may make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims (6)

1. A skin breaking device, characterized in that the skin breaking device comprises: A knife handle having a gripping portion and a mounting portion connected to each other, a scalpel being connected to the mounting portion, and a plurality of buckle grooves being provided on the mounting portion; A protective cover, which is sleeved on the mounting portion, the end of the protective cover is provided with an arc surface and an opening through which the tip of the scalpel can pass, and a buckle convex portion is provided inside the protective cover, and the buckle convex portion is buckled in the buckle groove; Wherein, a plurality of the snap grooves are arranged on the mounting portion at intervals along the direction in which the scalpel extends out of the protective cover; the plurality of the snap grooves include a closed position snap groove, a first extended position snap groove, and a second extended position snap groove, and the first extended position snap groove is located between the closed position snap groove and the second extended position snap groove; when the snap protrusion is snapped in the closed position snap groove, the scalpel is located in the protective cover; when the snap protrusion is snapped in the first extended position snap groove or the second extended position snap groove, the tip of the scalpel extends out of the opening of the protective cover; the distance between the first extended position snap groove and the closed position snap groove is 1 mm to 10 mm; the distance between the first extended position snap groove and the second extended position snap groove is 0.1 mm to 1 mm; The arc surface of the protective cover is located on the same side as the blade of the scalpel, and the arc surface of the protective cover is used to rest against the patient's skin as a support point for the skin-breaking device to rotate upward counterclockwise so that the tip of the scalpel cuts into the skin. The depth of the incision formed by the tip of the scalpel cutting into the skin does not exceed the length of the tip of the scalpel extending from the opening. 2 . The skin breaking device according to claim 1 , wherein the height of the buckle protrusion is 0.1 mm to 1 mm. 3 . 3. The skin-breaking device as described in claim 1 is characterized in that a mounting groove is provided on one side of the mounting portion, a boss is provided in the mounting groove, the knife tip is provided at one end of the scalpel, and a coupling groove is provided at the other end thereof, and when the other end of the scalpel is inserted into the mounting groove, the coupling groove is snap-fitted with the boss. 4. The skin breaking device according to claim 3, characterized in that a plurality of the buckle grooves are arranged on the other side of the mounting portion. 5. The skin breaking device according to claim 1, characterized in that the outer side wall of the protective sleeve is provided with a plurality of friction ridges. 6. The skin breaking device according to claim 1, characterized in that the buckle groove has an exit side wall, and the buckle protrusion is provided with an inclined side wall matching the exit side wall.