CN220512890U - Sternum scissors - Google Patents

Abstract

The utility model provides a sternum shear, which belongs to the technical field of sternum shears and comprises a shearing blade part and a handle part, wherein the shearing blade part is arranged along the horizontal direction, the handle part is obliquely arranged relative to the shearing blade part, the shearing blade part comprises an upper shearing blade and a lower shearing blade, the handle part comprises a first shearing handle and a second shearing handle, the upper shearing blade is connected with the first shearing handle, the lower shearing blade is connected with the second shearing handle, and the ends of the upper shearing blade and the lower shearing blade, which are close to the handle part, are mutually connected in a rotating way. The handle part which is obliquely arranged relative to the shearing blade part is adopted, so that not only is the sternum convenient to open by an operator in a labor-saving way, but also the problem that the operation is influenced by the fact that the abdomen of the pediatric patient bulges and approaches to the handle can be solved; by providing a longer handle portion, the moment is increased and thus the effort is saved, and the operator more comfortably operates the cutting blade portion perpendicular to the incision in the sternum.

Description

Sternum scissors

Technical Field

The utility model relates to the technical field of sternal scissors, in particular to a sternal scissors.

Background

Clinically, for patients with heart lesions, cardiac surgery is required, and cardiac anesthesia is required before surgery. After cardiac anesthesia and before cardiac surgery, the sternum of the patient needs to be cut off to ensure a clear surgical field; in cardiac surgery, a sternum is opened by a straight sternum saw or a swing saw, and for pediatric cardiac surgery, because the sternum is not developed completely, scissors are used for opening the sternum to retain more hard bones and bone marrow, but the scissors are usually used as line scissors, so that the scissors are quite inconvenient for a user, labor is wasted, the damage to the scissors is large, and the abdomen of a child is usually swelled due to development problems, and the existing sternum scissors are affected by the abdomen of the child when the sternum is opened due to the straight shape.

The prior art CN202121339248.2 discloses a medical sternal rib scissors, which comprises a first scissors body and a second scissors body, wherein the first scissors body and the second scissors body are rotationally connected through a connecting shaft, one side of the connecting shaft is an operation end, the other side of the connecting shaft is a driving end, the first scissors body and the second scissors body positioned at the operation end are both arranged in an upturned arc shape, and the end parts of the first scissors body and the end parts of the second scissors body are both provided with round corners; although the sternum scissors are arranged in an arc shape to prevent the breastbone scissors from contacting with the heart or other organs and preventing the false scratch, the breastbone scissors are still traditional linear scissors, so that the breastbone scissors are laborious, hands of operators are easy to contact with patients during use, the operation is affected, the risk of false touching the patients exists, and the unnecessary risk is increased.

In summary, the existing sternum scissors have the problems that the operation is laborious, and an operator is easy to touch a patient to cause injury during use.

Disclosure of Invention

The utility model aims to solve the technical problems that the sternum scissors are laborious to operate and are easily affected by the abdomen bulge of children.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a sternum is cut, includes shearing blade portion and handle portion, shearing blade portion arranges along the horizontal direction, handle portion is arranged with respect to shearing blade portion slope, shearing blade portion includes shearing blade and lower shearing blade, handle portion includes first scissors handle and second scissors handle, it connects to go up shearing blade and first scissors handle, lower shearing blade and second scissors handle connect, it connects to go up shearing blade, lower shearing blade are close to the tip of handle portion and rotate each other.

In the above scheme, when the breastbone scissors are used, the handles are inclined relative to the horizontal shearing blade parts, namely, the handles are obliquely arranged towards the upper parts of the shearing blade parts, so that a user can use a better operation angle to operate the breastbone scissors more comfortably, the difficulty in opening the breastbone is reduced, the incision of the breastbone is vertical, the obliquely arranged handles not only can save labor for the user and facilitate operation, but also can prevent the damage to tissues, organs and the like in a human body due to the fact that the abdomen is generally relatively bulged, namely, the conventional breastbone scissors are basically positioned on the same horizontal line, when the breastbone scissors are used, the breastbone scissors are inclined towards the lower parts of the breastbone scissors, and the internal organs are easily damaged, so that the handles are obliquely arranged towards the upper parts of the breastbone scissors, and the abdomen scissors are not convenient for the user.

Preferably, an included angle a between an extension line of the shearing blade portion along the horizontal direction and the handle portion is 30 degrees.

Preferably, the length of the handle part is 3-4 times of the length of the shearing blade part.

Preferably, the length of the handle portion is 9-12cm, and the length of the shearing blade portion is 3cm.

Preferably, the ends of the upper shearing blade and the lower shearing blade far away from the handle part are arc blunt ends, so that the front ends of the upper shearing blade and the lower shearing blade are prevented from puncturing the pleura, and important tissues and organs in the sternum are prevented from being damaged.

Preferably, the thickness of the upper shearing blade and the lower shearing blade is 0.12 cm to 0.2cm, so that the service life of the sternum scissors is prolonged.

Preferably, the lower shearing blade is 0.3cm longer than the upper shearing blade, such that lower shearing blade 102 remains below the sternum during shearing of the sternum; the lower shear blade length is 3cm, and the upper shear blade length is 2.7cm.

Preferably, the upper shearing blade and the lower shearing blade are arc-shaped, so that when a user operates the upper shearing blade and the lower shearing blade to shear the sternum, the lower shearing blade is prevented from damaging tissues and organs in the sternum when the lower shearing blade is deflected downwards, namely, the small part of the middle part of the lower shearing blade is closer to the inside of the sternum, and the front end of the lower shearing blade is far away from the inside of the sternum, so that the possibility of touching the inside of the sternum is reduced.

Preferably, the upper shearing blade and the lower shearing blade are rotatably connected through a rotating shaft.

Preferably, the upper shearing blade is connected with the first scissor handle through a first connecting piece, the lower shearing blade is connected with the second scissor handle through a second connecting piece, through holes are formed in the first connecting piece and the second connecting piece, and the rotating shaft penetrates through the through holes.

Preferably, the inboard of first scissors handle and second scissors handle all is provided with the dog, the outside of first scissors handle and second scissors handle all is provided with the finger circle, and the finger circle makes things convenient for operator drive first scissors handle and second scissors handle, because the below can occupy certain operating space, so this finger circle can set up according to the demand, and first scissors handle and second scissors handle also can satisfy the demand.

Preferably, a spring is arranged between the first scissor handle and the second scissor handle, the spring is arranged to be convenient to open and close, and a user only needs to overcome smaller spring resistance and cannot influence operation.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that: the utility model provides a pair of sternum scissors, which comprises a pair of scissors body,

(1) The handle part which is obliquely arranged relative to the shearing blade part is adopted, so that not only is the sternum convenient to open by an operator in a labor-saving way, but also the problem that the operation is influenced by the fact that the abdomen of the pediatric patient bulges and approaches to the handle can be solved;

(2) By arranging a longer handle part, the moment is increased so as to save labor, and an operator more comfortably operates the shearing blade part to keep vertical to the incision of the sternum;

(3) By providing the arc-shaped shearing blade part, the possibility of touching organs such as organs in the sternum of a patient is reduced, and damage to other organs is prevented.

Drawings

FIG. 1 is a schematic view of a closed state structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the assembly of a first scissor handle with an upper scissor blade in accordance with the present utility model;

FIG. 4 is a schematic view of the assembly of a second scissor handle with a lower scissor blade in accordance with the present utility model;

FIG. 5 is a schematic view of the open state structure of the present utility model;

FIG. 6 is a schematic view of the assembled spring and finger ring configuration of the present utility model;

wherein: 1. a shearing blade portion; 2. a handle portion; 3. a rotating shaft; 4. a first connector; 5. a second connector; 6. a through hole; 101. an upper shear blade; 102. a lower shear blade; 201. a first scissor handle; 202. a second scissor handle; 203. a stop block; 204. a finger ring; 205. and (3) a spring.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and that "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features being referred to; nor does it represent the importance of the components and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present utility model.

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

Example 1:

referring to fig. 1 to 5, a sternum shear includes a shear blade portion 1 and a handle portion 2, the shear blade portion 1 being disposed in a horizontal direction, the handle portion 2 being disposed obliquely with respect to the shear blade portion 1, the shear blade portion 1 including an upper shear blade 101 and a lower shear blade 102, the handle portion 2 including a first scissor handle 201 and a second scissor handle 202, the upper shear blade 101 being connected to the first scissor handle 201, the lower shear blade 102 being connected to the second scissor handle 202, and ends of the upper and lower shear blades 101, 102 near the handle portion 2 being rotatably connected to each other.

In operation, the sternum of a patient, especially the sternum of a child patient, is required to be opened, in order to retain more hard bones and bone marrow, the handle 2 is held by a user to operate so that the shearing blade part 1 is opened and closed, the sternum of the patient is sheared by the shearing blade part 1, the shearing blade part 1 is in a horizontal state as much as possible when the sternum of the patient is sheared, the upper shearing blade 101 is driven to rotate relative to the lower shearing blade 102, and the lower shearing blade 102 is driven to rotate relative to the upper shearing blade 102 and the lower shearing blade 101 is driven to rotate relative to the lower shearing blade 101, so that the shearing blade part 1 is in an inclined state relative to the horizontal shearing blade part 1 when the sternum is sheared, namely, the shearing blade part 1 is obliquely arranged towards the upper shearing blade part 1, the user can operate with a better operation angle force, the shearing blade part is more comfortable, the difficulty of opening the sternum is reduced, the sternum is vertical, and in particular, the user operates the first shearing blade 201 and the second shearing blade 202, the first shearing blade 201 drives the upper shearing blade 101 to rotate relative to the lower shearing blade 102, and the lower shearing blade 202 drives the lower shearing blade 102 to rotate relative to the lower shearing blade 101, and the lower shearing blade 101 is driven to rotate relative to the lower shearing blade 101, and the lower shearing blade 101 is required to be close to the opposite to the two shearing blade 101, and the two shearing blade 101 is required to be cut to be a high to be cut to be mutually a hard to be cut by a medical care of a patient; the handle part 2 is obliquely arranged, so that a user can save labor and is convenient to operate, particularly, the problem that the abdomen is usually swelled due to development of a child patient is solved, namely, the abdomen swelled by the child can influence the sternum scissors to deviate downwards due to the fact that the conventional sternum scissors handle and the scissors blades are basically positioned on the same horizontal line, and the internal organs are easily damaged, and the handle part 2 is obliquely arranged upwards, so that the abdomen swelling device is not influenced by the abdomen swelling of the child patient, and is convenient for the user to operate.

In a further embodiment, the included angle a between the extension line of the cutting blade part 1 along the horizontal direction and the handle part 2 is 30 degrees, that is, the included angle between the handle part 2 and the cutting blade part 1 is 150 degrees, and when the operator operates the handle 2, the operator can keep a certain distance from the abdomen of the pediatric patient at the angle, so that the operation is convenient; and under this angle, the angle of exerting oneself is also suitable, and the too big angle can increase the operation degree of difficulty of exerting oneself.

In a further embodiment, the length of the handle part 2 is 3-4 times of the length of the shearing blade part 1, the handle part 2 is longer, the using distance of an operator is increased, different conditions are convenient, different distances are applicable, and the handle part 2 is larger in longer moment, so that the operator can conveniently save labor, and the operation is more convenient. For example, the length of the shearing blade portion 1 is 3cm, and the length of the handle portion 2 is 9-12cm.

In a further embodiment, the ends of the upper shearing blade 101 and the lower shearing blade 102 far away from the handle portion 2 are arc blunt ends, and arc blunt ends are arranged, so that the front ends of the upper shearing blade 101 and the lower shearing blade 102 are prevented from puncturing the pleura, and important tissues and organs in the sternum are prevented from being damaged.

In a further embodiment, the lower cutting blade 102 is 0.3cm longer than the upper cutting blade 101, and the lower cutting blade 102 below is a distance longer than the upper cutting blade 101 above, so that the lower cutting blade 102 remains below the sternum during the process of cutting the sternum, avoiding repeated up and down movements of the lower cutting blade 102.

Example 2:

referring to fig. 1-5, the upper shearing blade 101 and the lower shearing blade 102 are arc-shaped, as shown in the figure, the upper shearing blade 101 and the lower shearing blade 102 are arc-shaped, i.e. the middle arc-shaped bulge faces downwards, the two ends face upwards, when a user operates the upper shearing blade 101 and the lower shearing blade 102 to shear the sternum, the front end faces upwards, and the lower shearing blade 102 is prevented from damaging tissues and organs in the sternum when being deflected downwards, i.e. the middle small part of the lower shearing blade 102 is closer to the inside of the sternum, and the rest parts are more deflected upwards, so that the possibility of touching the inside of the sternum is reduced.

Example 3:

referring to fig. 1 to 6, there is provided a sternum shear in which an upper shear blade 101 and a lower shear blade 102 are rotatably connected to each other by a rotation shaft 3.

The rotating shaft 3 is provided to rotatably connect the upper shearing blade 101 and the lower shearing blade 102, so that the cost is low, and a structure of rotating connection in the prior art such as a pin shaft can be adopted.

In a further embodiment, the upper shearing blade 101 is connected with the first scissor handle 201 through the first connecting piece 4, the lower shearing blade 102 is connected with the second scissor handle 202 through the second connecting piece 5, the first connecting piece 4 and the second connecting piece 5 are respectively provided with a through hole 6, the rotating shaft 3 penetrates through the through hole 6, the shearing blade part 1 and the handle part 2 are connected through the first connecting piece 4 and the second connecting piece 5, so that the connection part of the upper shearing blade 101 and the lower shearing blade 102 in a rotating way is connected with a stable connection, the first connecting piece 4 and the second connecting piece 5 are combined better, the thickness of sternum scissors is reduced, the through hole 6 is formed to enable the installation and the replacement of the rotating shaft 3 to be more convenient, and the comparison position exists in the combination of the two parts.

In a further embodiment, the inner sides of the first scissors handle 201 and the second scissors handle 202 are provided with a stop 203, the outer sides of the first scissors handle 201 and the second scissors handle 202 are provided with finger rings 204, and the stop 203 on the inner sides prevents the first scissors handle 201 and the second scissors handle 202 from being close to each other and exceeding the gap spacing therebetween, so that the upper scissors blade 101 and the lower scissors blade 102 are misplaced; the finger ring 204 is arranged on the outer side, so that an operator can conveniently operate the handle part 2, and of course, the finger ring 204 can be arranged on the second scissor handle 202 only, so that a patient is prevented from being touched easily when the finger ring is positioned below the first scissor handle 201.

In a further embodiment, a spring 205 is disposed between the first scissor handle 201 and the second scissor handle 202, and the first scissor handle 201 and the second scissor handle 202 can be separated by the spring 205, so that the upper shearing blade 101 and the lower shearing blade 102 can be conveniently opened, and only a small spring force needs to be overcome for closing.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A sternum shear, characterized in that: including shearing blade portion (1) and handle portion (2), shearing blade portion (1) arranges along the horizontal direction, handle portion (2) are arranged for shearing blade portion (1) slope, shearing blade portion (1) include shearing blade (101) and lower shearing blade (102), handle portion (2) include first shearing handle (201) and second shearing handle (202), it connects to go up shearing blade (101) and first shearing handle (201), lower shearing blade (102) are connected with second shearing handle (202), it is connected that the tip that upper shearing blade (101), lower shearing blade (102) are close to handle portion (2) rotates each other.

2. A sternal shear as claimed in claim 1, wherein: an included angle A between an extension line of the shearing blade part (1) along the horizontal direction and the handle part (2) is 30 degrees.

3. A sternal shear as claimed in claim 1, wherein: the length of the handle part (2) is 3-4 times of the length of the shearing blade part (1).

4. A sternal shear as claimed in claim 1, wherein: and one ends of the upper shearing blade (101) and the lower shearing blade (102) far away from the handle part (2) are arc blunt ends.

5. A sternal shear as claimed in claim 1, wherein: the lower shear blade (102) is 0.3cm longer than the upper shear blade (101).

6. A sternal shear as claimed in claim 1, wherein: the upper shearing blade (101) and the lower shearing blade (102) are arc-shaped.

7. A sternal shear according to any one of claims 1-6, wherein: the upper shearing blade (101) and the lower shearing blade (102) are rotatably connected through a rotating shaft (3).

8. A pair of sternal shears according to claim 7, wherein: the upper shearing blade (101) is connected with the first scissor handle (201) through a first connecting piece (4), the lower shearing blade (102) is connected with the second scissor handle (202) through a second connecting piece (5), through holes (6) are formed in the first connecting piece (4) and the second connecting piece (5), and the rotating shaft (3) penetrates through the through holes (6).

9. A pair of sternal shears according to claim 7, wherein: the inner sides of the first scissors handle (201) and the second scissors handle (202) are respectively provided with a stop block (203), and the outer sides of the first scissors handle (201) and the second scissors handle (202) are respectively provided with a finger ring (204).

10. A pair of sternal shears according to claim 7, wherein: a spring (205) is arranged between the first scissor handle (201) and the second scissor handle (202).