CN213372335U - Surgical knife - Google Patents

Abstract

A scalpel relates to the technical field of medical instruments and comprises a handle part and a scalpel head part; the cutter head part comprises a cutter head body, a cutter head cutting part and a cutter head tip which are fixedly connected in sequence along the length direction of the cutter head part, and the cutter head body is fixedly connected with the handle part; the tool bit tip is positioned at the end of the tool bit part far away from the handle part; the two sides of the knife edge part of the knife head are provided with knife edges along the width direction of the knife head part; along the thickness direction of sword head portion, tool bit cutting edge portion has the radian. The utility model aims to provide a scalpel to solve the technical problems of the prior art that the joint capsule of the hip joint is not convenient to cut and the labrum cannot be well stripped.

Description

Surgical knife

Technical Field

The utility model relates to the technical field of medical equipment, particularly, relate to a scalpel.

Background

As a minimally invasive operation, the hip arthroscope is an advanced technology for treating hip joint diseases with ineffective conservative treatment. It can treat pathological changes in joints and reduce pressure by drilling, thus reducing damage to blood circulation and stability of joints compared with any operation for retaining hip joints. Has positive effects on relieving pain, improving joint movement function and delaying joint replacement time.

The existing scalpel is very inconvenient to use when cutting open the joint capsule in hip arthroscopy operation and cannot well peel off the labrum.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a scalpel to solve the technical problems of the prior art that the joint capsule of the hip joint is not convenient to cut and the labrum cannot be well stripped.

In order to achieve the above object, the present invention provides the following technical solutions:

a scalpel comprises a handle portion and a blade portion;

the cutter head part comprises a cutter head body, a cutter head cutting part and a cutter head tip which are fixedly connected in sequence along the length direction of the cutter head part, and the cutter head body is fixedly connected with the handle part; the tool bit tip is positioned at the end of the tool bit part far away from the handle part; through the tip to better peel off the labrum.

The two sides of the knife edge part of the knife head are provided with knife edges along the width direction of the knife head part;

along the thickness direction of sword head portion, tool bit cutting edge portion has the radian. By having a curved portion on the head of the knife to facilitate stripping of the labrum, it is also possible to avoid tissue while cutting the joint capsule, avoiding damage to cartilage and labrum and the like in the joint.

In any of the above technical solutions, optionally, in the thickness direction of the cutter head portion, the cutter edge portion of the cutter head has an upper surface and a lower surface;

along the width direction of tool bit portion, the both sides of the upper surface of tool bit cutting edge portion and lower surface all have the cutting edge. That is, along the width direction of the cutter head part, two sides of the upper surface of the cutter edge part of the cutter head are provided with cutting edges, and two sides of the lower surface of the cutter edge part of the cutter head are provided with cutting edges; to increase the sharpness of the blade portion of the tool bit, i.e., the sharpness of the scalpel, to facilitate dissection of the joint capsule and dissection of the labrum.

In any of the above technical solutions, optionally, the radian of the knife edge portion of the tool bit is 5 ° to 20 °. The curvature of the knife edge part of the knife head is used for facilitating the glenoid lip stripping in the operation and avoiding the tissues when cutting the joint capsule so as to avoid damaging the cartilage and the glenoid lip in the joint.

In any of the above technical solutions, optionally, the radian of the knife edge portion of the tool bit is 10 °.

In any of the above technical solutions, optionally, along the width direction of the bit part, part or all of both sides of the bit body have a cutting edge; because the hip joint capsule is thicker, the blades are lengthened on the two sides of the tool bit body, which is beneficial to cutting the whole layer of the hip joint capsule.

In any of the above technical solutions, optionally, the length of the blade on one side of the blade head portion is 7mm-20 mm. When the two sides of the cutter head body are not provided with the cutting edges, the length of the cutting edge on one side of the cutter head part can be understood as the length of the cutting edge part of the cutter head; when the two sides of the cutter head body are provided with the cutting edges, the cutting edge length on one side of the cutter head part can be understood as the sum of the length of the cutting edge part of the cutter head and the cutting edge length of the cutter head body.

In any of the above technical solutions, optionally, the length of the blade on one side of the blade head portion is 7mm to 9 mm.

In any of the above technical solutions, optionally, the length of the blade head portion is 10mm-15 mm; the width of the knife head part is 3mm-4 mm; the length of the scalpel is 210mm-230 mm;

and/or the handle part and the knife head part are of an integral structure.

In any of the above solutions, optionally, the outer surface of the handle portion has a slip-resistant structure. Through the antiskid structure to can effectively antiskid, the operation of being convenient for can reduce the degree of difficulty of operation.

In any of the above solutions, optionally, the anti-slip structure includes a protrusion and/or a groove provided on an outer surface of the handle portion;

or the anti-slip structure is an anti-slip pattern arranged on the outer surface of the handle part.

The beneficial effects of the utility model mainly lie in:

the utility model provides a scalpel, which comprises a handle part and a scalpel head part, wherein the scalpel head part comprises a scalpel head body, a scalpel head cutting part and a scalpel head tip which are fixedly connected in sequence; the two sides of the knife edge part of the knife head are provided with knife edges, so that the joint capsule can be better cut in the operation; the arc of the knife blade part of the tool bit is used for facilitating the stripping of the labrum and the incision of the joint capsule in the operation on one hand, and avoiding tissues when the joint capsule is incised on the other hand, so that the cartilage and the labrum in the joint are prevented from being damaged, and the safety performance of the operation is improved to a certain extent; the end of the tool head portion remote from the handle portion is provided with a tool bit tip to further facilitate stripping of the labrum. The scalpel has a relatively simple structure, is convenient for medical staff to incise a joint capsule and peel off a labrum during arthroscopic surgery, particularly hip arthroscopic surgery, and improves the success rate of the surgery to a certain extent.

In order to make the aforementioned and other objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a scalpel according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a first view angle of the scalpel according to the embodiment of the present invention;

fig. 3 is a second enlarged view of a portion of the scalpel according to the embodiment of the present invention;

fig. 4 is a partial enlarged view of a third view angle of the scalpel according to the embodiment of the present invention.

Icon: 100-a handle portion; 110-a slip-resistant structure; 200-a cutter head part; 210-a bit body; 220-cutter head and blade part; 230-a tool tip; 240-knife edge.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Examples

Referring to fig. 1 to 4, a scalpel is provided in the present embodiment, and fig. 1 is a schematic structural view of a scalpel provided in an embodiment of the present invention; fig. 2-4 are enlarged partial views of a knife head portion and a partial handle portion of a scalpel provided by an embodiment of the present invention, and fig. 2-4 show three different viewing angles, wherein fig. 2 shows a front view of the knife head portion and the partial handle portion, fig. 3 shows a right side view of the knife head portion and the partial handle portion, and fig. 4 shows a perspective view of the knife head portion and the partial handle portion. For clarity in showing the structure of the bit body 210, the bit blade portion 220, and the bit tip 230, fig. 2-4 use dashed lines to divide the location of the bit body 210, the bit blade portion 220, and the bit tip 230.

The scalpel provided by the embodiment is applied to joint surgery with narrow joint gaps, and is particularly applied to hip arthroscopy surgery.

Referring to fig. 1-4, the scalpel includes a handle portion 100 and a blade portion 200.

Along the length direction of the cutter head part 200, the cutter head part 200 comprises a cutter head body 210, a cutter head blade part 220 and a cutter head tip 230 which are fixedly connected in sequence; the tool bit body 210 is fixedly connected with the handle portion 100; alternatively, the head portion 200 is fixedly coupled to one end of the handle portion 100. The longitudinal direction of the blade unit 200 is also the longitudinal direction of the scalpel, and is also the longitudinal direction of the handle unit 100.

The cutting-head tip 230 is located at the end of the cutting-head portion 200 remote from the handle portion 100; by means of the tip so that the labrum can be better stripped in joint surgery, especially in hip arthroscopic surgery.

Both sides of the blade part 220 of the tool bit have blades 240 in the width direction of the head part 200; the blade portion 220 has blades 240 on both sides thereof so that the joint capsule can be better cut in the joint surgery, particularly in the hip arthroscopic surgery.

The blade portion 220 of the tool bit has a curvature in the thickness direction of the head portion 200. By having a curved portion of the blade head 200 to facilitate stripping of the labrum, it is also possible to avoid tissue while cutting the joint capsule, avoiding damage to cartilage and labrum and the like in the joint.

Wherein, the length direction, the width direction and the thickness direction of the cutter head part 200 are mutually vertical in pairs.

The scalpel in this embodiment comprises a handle portion 100 and a scalpel head portion 200, wherein the scalpel head portion 200 comprises a scalpel head body 210, a scalpel head blade portion 220 and a scalpel head tip 230 which are fixedly connected in sequence; the blade part 220 of the cutter head is provided with blades 240 on both sides, so that the joint capsule can be cut better in the operation; the curvature of the knife head knife edge part 220 is used for facilitating the stripping of the labrum and the incision of the joint capsule in the operation on one hand, and avoiding tissues when the joint capsule is incised on the other hand, so that the cartilage and the labrum in the joint are prevented from being damaged, and the safety performance of the operation is improved to a certain extent; a tool bit tip 230 is provided by the end of the tool head portion 200 distal to the handle portion 100 to further facilitate stripping of the labrum. The scalpel has a relatively simple structure, is convenient for medical staff to incise a joint capsule and peel off a labrum during arthroscopic surgery, particularly hip arthroscopic surgery, and improves the success rate of the surgery to a certain extent.

Referring to fig. 4, in an alternative of the present embodiment, the cutter-head blade portion 220 has an upper surface and a lower surface in the thickness direction of the cutter head portion 200; the upper surface is not an absolute upper or lower surface relative to the lower surface.

Both sides of the upper and lower surfaces of the blade part 220 of the tool bit have blades 240 in the width direction of the head part 200. That is, in the width direction of the cutter head portion 200, both sides of the upper surface of the cutter head blade portion 220 have blades 240, and both sides of the lower surface of the cutter head blade portion 220 have blades 240; with both sides of the upper and lower surfaces of the tool bit blade portion 220 having blades 240, the sharpness of the tool bit blade portion 220, i.e., the sharpness of the scalpel, is increased, thereby facilitating dissection of the joint capsule and stripping of the labrum.

Referring to fig. 3, in an alternative embodiment, the arc of the bit blade portion 220 is 5 ° to 20 °. The adoption of the knife head knife edge part 220 with the radian of 5-20 degrees further facilitates the stripping of the labrum in the operation, and can also better avoid tissues when cutting the joint capsule and avoid damaging cartilage and the labrum in the joint, and the like.

In an alternative of this embodiment, the radian of the bit blade part 220 is 5 °, 8 °, 10 °, 15 °, 20 °, or the like.

In an alternative to this embodiment, the curvature of the bit blade portion 220 is 10 °. The adoption of the knife head knife edge part 220 with the radian of 10 degrees further facilitates the stripping of the labrum in the operation, and can also better avoid tissues when cutting the joint capsule and avoid damaging cartilage and the labrum in the joint, and the like. The adoption of the cutter head and the cutter edge part 220 with the radian of 10 degrees can also facilitate the production and the processing of the cutter head part 200, thereby facilitating the production and the processing of the scalpel.

Referring to fig. 4, in an alternative of the present embodiment, in the width direction of the bit portion 200, part or all of both sides of the bit body 210 have the cutting edges 240; because the hip capsule is relatively thick, the blades 240 are lengthened on both sides of the bit body 210, which is beneficial to incising the whole layer of the hip capsule. Fig. 4 shows that portions of both sides of the bit body 210 have cutting edges 240.

Alternatively, the portion of the bit body 210 having the cutting edge 240 has the cutting edge 240 on both sides of the upper and lower surfaces thereof in the thickness direction of the bit part 200. That is, in the width direction of the bit part 200, both sides of the upper surface of the portion of the bit body 210 having the cutting edge 240 have the cutting edge 240, and both sides of the lower surface of the portion of the bit body 210 having the cutting edge 240 have the cutting edge 240; the blade 240 is provided on both sides of the upper and lower surfaces of the portion of the bit body 210 having the blade 240 to enhance the sharpness of the portion of the bit body 210 having the blade 240, i.e., to enhance the sharpness of the scalpel, thereby facilitating dissection of the joint capsule and dissection of the labrum.

In an alternative embodiment, the cutting edge 240 on one side of the blade portion 200 has a length of 7mm to 20 mm. When the cutting edge 240 is not disposed on both sides of the tool bit body 210, the length of the cutting edge 240 on one side of the tool bit portion 200 can be understood as the length of the cutting edge portion 220 of the tool bit; when the blades 240 are provided on both sides of the bit body 210, the length of the blade 240 on one side of the bit part 200 may be understood as the sum of the length of the blade part 220 of the bit and the length of the blade 240 of the bit body 210. A blade 240 having a length of 7mm to 20mm is better suited for incising the joint capsule and dissecting the labrum.

Alternatively, the length of the cutting edge 240 on one side of the head portion 200 is 7mm, 9mm, 10mm, 15mm, 20mm, or the like.

In an alternative embodiment, the cutting edge 240 on one side of the blade portion 200 has a length of 7mm to 9 mm.

In an alternative of this embodiment, the length of the blade portion 200 is 10mm-15 mm; the width of the cutter head part 200 is 3mm-4 mm; for example, the length of the blade portion 200 is 10mm, 12mm, or 15mm, etc., and the width of the blade portion 200 is 3mm, 3.5mm, or 4mm, etc.

Optionally, the length of the blade portion 200 is 12 mm.

Optionally, the length of the scalpel is 210mm-230 mm; for example, the length of the scalpel is 210mm, 215mm or 230mm, etc.

In an alternative of this embodiment, the handle portion 100 and the bit portion 200 are of unitary construction. The scalpel is of an integrated structure, so that the structure of the scalpel is simplified, and the production cost of the scalpel is reduced.

Referring to fig. 1, in an alternative to this embodiment, the outer surface of handle portion 100 has a slip resistant structure 110. Through anti-skidding structure 110 to can effectively antiskid, the operation of being convenient for can reduce the degree of difficulty of operation.

In an alternative of this embodiment, the slip resistant structure 110 includes protrusions and/or grooves provided on the outer surface of the handle portion 100; that is, the slip prevention structure 110 includes protrusions provided on the outer surface of the handle portion 100, or the slip prevention structure 110 includes grooves provided on the outer surface of the handle portion 100, or the slip prevention structure 110 includes protrusions and grooves provided on the outer surface of the handle portion 100. The protrusions or grooves improve the anti-slip property of the outer surface of the handle part 100.

In an alternative of this embodiment, the slip resistant structure 110 is a slip resistant thread provided on the outer surface of the handle portion 100; the anti-slip performance of the outer surface of the handle portion 100 is improved by the anti-slip thread.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A scalpel, comprising a handle portion and a blade portion;

the cutter head part comprises a cutter head body, a cutter head cutting part and a cutter head tip which are fixedly connected in sequence along the length direction of the cutter head part, and the cutter head body is fixedly connected with the handle part; the tool bit tip is positioned at the end of the tool bit part far away from the handle part;

the two sides of the knife edge part of the knife head are provided with knife edges along the width direction of the knife head part;

along the thickness direction of sword head portion, tool bit cutting edge portion has the radian.

2. The surgical knife of claim 1, wherein the blade portion of the blade head has an upper surface and a lower surface in a thickness direction of the blade head portion;

along the width direction of tool bit portion, the both sides of the upper surface of tool bit cutting edge portion and lower surface all have the cutting edge.

3. The surgical knife of claim 1, wherein the arc of the blade portion of the blade is 5 ° -20 °.

4. A scalpel according to claim 3, in which the arc of the blade portion of the blade is 10 °.

5. A scalpel according to any one of claims 1 to 4, in which part or all of the two sides of the blade body in the width direction of the blade head portion have cutting edges.

6. The scalpel of claim 5, wherein the blade length on one side of the blade head is 7mm to 20 mm.

7. The scalpel of claim 6, wherein the blade length on one side of the blade head is 7mm to 9 mm.

8. A scalpel according to any one of claims 1 to 4, in which the blade portion is 10mm to 15mm in length; the width of the knife head part is 3mm-4 mm; the length of the scalpel is 210mm-230 mm;

and/or the handle part and the knife head part are of an integral structure.

9. A scalpel according to any one of claims 1 to 4, in which the outer surface of the handle portion is of non-slip construction.

10. The scalpel of claim 9, wherein the anti-slip feature comprises a protrusion and/or a groove disposed on an outer surface of the handle portion;

or the anti-slip structure is an anti-slip pattern arranged on the outer surface of the handle part.

Images