CN210612171U - Drag hook for cardiac surgery - Google Patents

Abstract

The utility model discloses a drag hook for cardiac surgery, which belongs to the technical field of medical tools for surgery. Including handle portion, handle portion on be equipped with straight extension, straight extension on be equipped with the first hook portion that draws of crooked straight extension one side, first hook portion on be equipped with the parallel second hook portion that draws of straight extension, second hook portion be equipped with the third hook portion that draws of the straight line that the crooked straight extension was located, third hook portion on be equipped with the crooked straight extension straight line that locates and with third hook portion vertically fourth hook portion. The first draw hook part of the draw hook inclines to one side of the straight extension part, so that the influence on the visual field of an operator is effectively reduced on the basis of ensuring good force conductivity; the far end of the fourth drag hook part is bent to the rear part, so that the injury to a patient caused by the front end of the straight-in drag hook can be effectively avoided, and meanwhile, the fourth drag hook part can enable the pulled human tissues to be more stable and not easy to slide down and unhook, so that the local operation space is fully exposed, and the deep local suture of an operator can be facilitated.

Description

Drag hook for cardiac surgery

Technical Field

The utility model relates to a medical instrument technical field of performing operation, concretely relates to drag hook for cardiac surgery.

Background

In the current surgical operation of congenital heart disease in infants, the patients usually need to pass through the atria or ventricles before reaching the operation area. However, because of the small size, small incision and deep operation depth of such patients, especially for neonates, in order to fully expose the operation area, the retractor is required to open the atrial, ventricular or valve tissue blocking the visual field during the operation, and the retractor is required to neither block the sight of the operator nor interfere with the operation suture.

In the prior art, the drag hook for cardiac surgery is mostly straight type or little crookedness type, mainly has following shortcoming:

1. because the far end of the drag hook is close to the transverse distance of the hand, the angle of the drag hook needs to be continuously adjusted in the operation to avoid blocking the sight of the operator, and the operation is inconvenient;

2. the probing depth of the far end of the drag hook is difficult to control, and the far end adopts a straight-in type to easily hurt infants;

3. the conduction of structural force is poor, and longer operation time makes art person or assistant tired more easily, produces tiredly at the hand simultaneously and under organ self has elastic condition, the room that has taken off, room tissue return easily or glide, and then influence art person's field of vision to the gliding part is difficult to directly pull back with little crookedness drag hook, brings very big inconvenience for art person and assistant.

In view of the above-mentioned prior art, the applicant of the present invention has made a lot of repeated and beneficial researches, and the final product has obtained effective results and formed the technical solutions to be described below.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a drag hook for cardiac surgery to influence the operation field of vision easily, the end of straightening easily harms patient, the poor and lower problem of flexibility of power conductivity when leading to using because the drag hook is mostly straight type or little crookedness type among the solution prior art.

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

the utility model provides a drag hook for cardiac surgery, includes handle portion, handle portion on be equipped with straight extension, straight extension on be equipped with the first hook portion that draws of crooked straight extension one side, first hook portion on be equipped with the second hook portion that straight extension is parallel, second hook portion be equipped with the third hook portion that the straight extension of crooked place straight extension was sharp, third hook portion on be equipped with the straight extension of crooked place straight extension straight line and with third hook portion vertically fourth hook portion.

Further, the handle part and the straight extension part are connected with each other in a same body and are positioned on the same straight line.

Further, the straight lengths of the handle part and the straight extension part are respectively 7 cm.

Furthermore, the straight extension part is integrally provided with a first pulling hook part with an oblique side part at one end far away from the handle part, the angle of an included angle a between the first pulling hook part and the straight extension part is 135 degrees, and the linear length of the first pulling hook part is 7 cm.

Furthermore, the first hook pulling part is integrally provided with a second hook pulling part parallel to the straight extension part at one end far away from the straight extension part, and the second hook pulling part is integrally provided with a third hook pulling part inclined to the straight extension part at one end far away from the first hook pulling part.

Further, the angle of an included angle b between the first hook pulling portion and the second hook pulling portion is 135 degrees, and the angle of an included angle c between the second hook pulling portion and the third hook pulling portion is 135 degrees.

Further, the linear length of the second hook pulling part is 1cm, and the linear length of the third hook pulling part ranges from 4 cm to 6 cm.

Furthermore, the third hook pulling part is provided with a fourth hook pulling part of a straight line where the oblique straight extension part is located at the same body at the end far away from the second hook pulling part, the angle of an included angle d between the third hook pulling part and the fourth hook pulling part is 90 degrees, and the straight line length of the fourth hook pulling part is 1 cm.

Furthermore, one end, far away from the third hook portion, of the fourth hook portion is provided with an arc head.

Handle portion, straight extension, first hook portion, second hook portion, third hook portion and fourth hook portion all adopt the cross-section to be the circular or oval-shaped body of rod, and the link all adopts the fillet setting.

The utility model has the advantages of as follows:

1. the handle part and the straight extension part are in the same straight line, so that the distance between the far end of the draw hook and the handle part can be effectively increased, and the first draw hook part is inclined to one side of the straight extension part, so that the influence on the visual field of an operator is effectively reduced on the basis of ensuring good force conductivity;

2. the far end of the fourth drag hook part is bent to the rear part, so that the injury to a patient caused by the front end of the straight-in drag hook can be effectively avoided, and meanwhile, the fourth drag hook part can enable the pulled human tissues to be more stable and not easy to slide down and unhook, so that the local operation space is fully exposed, and the deep local suture of an operator can be facilitated.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and the structures, proportions, sizes, etc. shown in the present specification are only used to match the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and any modifications of the structures, changes of the proportion relations, or adjustments of the sizes, should still fall within the scope of the technical contents disclosed in the present invention without affecting the functions and the achievable objects of the present invention.

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

In the figure: 1-handle part, 2-straight extension part, 3-first hook part, 4-second hook part, 5-third hook part and 6-fourth hook part.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment of the present invention provides a retractor for cardiac surgery, which comprises a handle portion 1, a straight extension portion 2, a first retractor portion 3, a second retractor portion 4, a third retractor portion 5 and a fourth retractor portion 6, which are arranged in the same body, and are specifically arranged as follows:

the handle part 1 and the straight extension part 2 are connected in a same body and are positioned on the same straight line, so that the distance between the far end of the drag hook and the handle part 1 is increased, and the influence on the visual field of an operator is reduced; the outer side of the handle end 1 is fixedly connected with a streamline handle sleeve for controlling the drag hook more accurately and stably, and meanwhile, the comfort level of holding can be improved by adopting streamline ergonomic design, and the fatigue degree of a holder is reduced.

Preferably, the straight lengths of the handle part 1 and the straight extension part 2 are respectively 7 cm.

Straight extension 2 is keeping away from handle portion 1 one end and is being equipped with the first hook portion 3 of slant lateral part with the body, the angle that forms contained angle a between first hook portion 3 and the straight extension 2 is 135, and the straight line length of first hook portion 3 adopts 7cm for the slant angle that needs expose when being more fit for the actual operation, can make handle portion 1 and straight extension 2 and patient's body surface's angle form about 90, do benefit to the person of gripping and have an effect, extension hand fatigue time, the slant sets up and also more is favorable to the hand to keep away from the operation region simultaneously.

The first hook part 3 is provided with a second hook part 4 which is parallel to the straight extension part 2 at the same body of one end far away from the straight extension part 2, the second hook part 4 is provided with a third hook part 5 which is inclined to the straight extension part 2 at the same body of one end far away from the first hook part 3, specifically, the angle of an included angle b between the first hook part 3 and the second hook part 4 is 135 degrees, the angle of an included angle c between the second hook part 4 and the third hook part 5 is 135 degrees, the linear length of the second hook part 4 is 1cm, the linear length of the third hook part 5 is 4-6 cm, the first hook part 3 and the third hook part 5 are connected and transited through the second hook part 4, meanwhile, the arrangement of a 135-degree connecting angle is adopted, the interference of the hook to the operation of an operation tool is just avoided, and the shielding of peripheral tissues to the operation visual field can be reduced to the maximum extent, the third hook portion 5 is provided with different lengths, and drag hooks of different specifications can be selected according to different depth requirements of the thoracic cavities of different age groups and different physiques, so that the overall applicability and flexibility are improved.

Third hook portion 5 keep away from 4 one ends of second hook portion and be equipped with the straight-line fourth hook portion 6 of slant straight extension 2 place on the same body, specifically, the angle of contained angle d between third hook portion 5 and the fourth hook portion 6 is 90, and the straight line length of fourth hook portion 6 adopts 1cm for prevent that straight income formula drag hook front end from causing the injury to patient, the while operation is more stable difficult for unhooking, makes the part expose more space, is favorable to the operation person to carry out the local of deep and sews up.

Particularly, when the intracardiac surgery is performed, the ventricular septal defect with the highest incidence rate is taken as an example: the drag hook reaches the right ventricular surface of the ventricular septal defect through the right atrial incision and the tricuspid valve orifice, the right ventricular surface of the ventricular septal defect is often covered by septal valve and chordae tendineae tissues, the tissues can be pulled open by the fan-shaped barb arranged on the fourth drag hook part 6 to expose local space, and the needle holder and the suture needle can be conveniently operated during suture.

Preferably, one end of the fourth hook part 6, which is far away from the third hook part 5, is arranged by adopting an arc head; handle portion 1, straight extension 2, first hook portion 3, second hook portion 4, third hook portion 5 and fourth hook portion 6 all adopt the cross-section to be the circular or oval-shaped body of rod, and the link all adopts the fillet setting for security when effectively promoting drag hook and human contact.

The materials used for the handle portion 1, the straight extension portion 2, the first hook portion 3, the second hook portion 4, the third hook portion 5, and the fourth hook portion 6 include, but are not limited to, alloy steel; the handle sleeve is made of materials including but not limited to medical PVC; the fixed connection mode of the handle sleeve and the handle end 1 includes but is not limited to interference sleeve connection and sleeve connection cementing.

The use process of the retractor for the cardiac surgery is as follows:

when the handle part 1 is used, the handle part 1 is taken, the third hook pulling part 5 and the second hook pulling part 4 are sequentially inserted into the tissues of the room, the chamber or the valve from the fourth hook pulling part 6, and the first hook pulling part 3 corresponds to the outer side of the tissues;

secondly, the handle part 1 is lightly pulled, so that the first pull hook part 3, the second pull hook part 4 and the third pull hook part 5 are stressed to transversely pull apart the human tissues, the handle part 1 is lightly pulled according to the characteristics of a patient, and the fourth pull hook part 6 is stressed to longitudinally and properly pull the human tissues outwards, so that a space which is beneficial for an operator to observe a deep operation part is formed;

and finally, after the use is finished, reversely operating the handle part 1, and sequentially taking out the first hook pulling part 3, the second hook pulling part 4, the third hook pulling part 5 and the fourth hook pulling part 6.

For those skilled in the art, based on the teachings of the present invention, changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims (9)

1. A drag hook for cardiac surgery is characterized in that: including handle portion, handle portion on be equipped with straight extension, straight extension on be equipped with the first hook portion that draws of crooked straight extension one side, first hook portion on be equipped with the parallel second hook portion that draws of straight extension, second hook portion be equipped with the third hook portion that draws of the straight line that the crooked straight extension was located, third hook portion on be equipped with the crooked straight extension straight line that locates and with third hook portion vertically fourth hook portion.

2. The retractor for cardiac surgery as defined in claim 1, wherein said handle portion is integrally connected to and collinear with said straight extension portion.

3. A retractor for cardiac surgery as defined in claim 1 or 2, wherein the straight lengths of said handle portion and said straight extension portion are each 7 cm.

4. The retractor for cardiac surgery as defined in claim 1, wherein the straight extension portion is integrally provided with a first retractor portion of an oblique side portion at an end away from the handle portion, an angle a between the first retractor portion and the straight extension portion is 135 °, and a linear length of the first retractor portion is 7 cm.

5. The retractor for cardiac surgery as defined in claim 1, wherein the first retractor portion is integrally provided with a second retractor portion at a position far from the straight extension portion, the second retractor portion being parallel to the straight extension portion, and the second retractor portion is integrally provided with a third retractor portion at a position far from the first retractor portion, the third retractor portion being inclined to a straight line where the straight extension portion is located.

6. The retractor for cardiac surgery according to claim 1 or 5, wherein the angle b between the first retractor portion and the second retractor portion is 135 °, and the angle c between the second retractor portion and the third retractor portion is 135 °.

7. The retractor for cardiac surgery as defined in claim 1 or 5, wherein the second retractor portion has a linear length of 1cm, and the third retractor portion has a linear length in the range of 4 to 6 cm.

8. The heart surgery retractor according to claim 1, characterized in that the third retractor portion is integrally provided with a fourth retractor portion at an end away from the second retractor portion, wherein the fourth retractor portion is a straight line in which the oblique straight extension portion is located, an included angle d between the third retractor portion and the fourth retractor portion is 90 degrees, and the straight line length of the fourth retractor portion is 1 cm.

9. The retractor for cardiac surgery as defined in claim 1, wherein the end of the fourth retractor portion, which is far away from the third retractor portion, is provided with a circular arc head;

handle portion, straight extension, first hook portion, second hook portion, third hook portion and fourth hook portion all adopt the cross-section to be the circular or oval-shaped body of rod, and the link all adopts the fillet setting.

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