CN215914729U

CN215914729U - Drag hook for thyroid gland minimal access surgery

Info

Publication number: CN215914729U
Application number: CN202122232338.8U
Authority: CN
Inventors: 臧天颖; 刘炳阳
Original assignee: Plastic Surgery Hospital of CAMS and PUMC
Current assignee: Plastic Surgery Hospital of CAMS and PUMC
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-03-01
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a drag hook for thyroid minimally invasive surgery, which comprises a hook body, a sleeve and a handle, wherein the handle is horizontally arranged along the front-back direction, the hook body is U-shaped, the hook opening of the hook body is upward, hook walls on two sides of the hook body are distributed at intervals along the left-right direction, the upper end of the hook wall on the left side of the hook body is fixedly connected with the front end of the handle, external threads are arranged at the upper end of the hook wall on the right side of the hook body, a conical tip with an upward conical tip is arranged at the upper end of the thread part of the hook body, internal threads matched with the external threads on the hook wall on the right side of the hook body are arranged on the inner wall of the sleeve, the sleeve is in threaded connection with the upper end of the hook wall on the right side of the hook body, the sleeve is screwed to move downwards relative to the hook body so as to expose the conical tip outside the sleeve, or the sleeve is screwed to move upwards relative to the hook body so as to arrange the conical tip in the sleeve, the structure is simple, and is convenient to use.

Description

Drag hook for thyroid gland minimal access surgery

Technical Field

The utility model belongs to the field of medical equipment, and particularly relates to a drag hook for a thyroid minimally invasive surgery.

Background

With the increasing requirements of patients on scars and long-term beauty of neck surgery, the endoscopic thyroid surgery gradually replaces partial open surgery, is applied more and more widely in clinic, and the pursuit of endoscopic surgery on minimally invasive surgery is more and more extreme. For example, in the transthoracic laparoscopic surgery, when the thyroid gland, peripheral lymph nodes and other tissues are dissociated, the problems of sufficient retraction of the cervical anterior muscle group and sufficient exposure of the surgical field are overcome on the premise of ensuring the minimum trauma. At present, U-shaped tip drag hooks are mostly adopted clinically, but tissues such as peripheral nerves, blood vessels and the like are easily damaged by the tips of the drag hooks in the operation process, so the tips of the drag hooks are always kept fixed in the field of vision during the operation, the requirement on a hook puller is extremely high, and the drag hooks which need to be exposed in the field of operation sometimes hinder the instrument operation of a main knife.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a thyroid endoscope draw hook which is simple in structure, can avoid side damage caused by the draw hook and is convenient for a main surgeon to perform subsequent operation.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a drag hook for thyroid gland wicresoft art, includes coupler body, sleeve and handle, the handle sets up along the fore-and-aft direction level, the coupler body is the U-shaped, and its hook mouth up, the hook wall of coupler body both sides is along left right direction interval distribution, the upper end of coupler body left side hook wall with the front end of handle is connected fixedly, the upper end of coupler body right side hook wall is equipped with the external screw thread, and the upper end of its screw thread department is equipped with awl point up awl point, telescopic inner wall be equipped with external screw thread matched with internal thread on the coupler body right side hook wall, just the sleeve with the upper end threaded connection of coupler body right side hook wall, twist move the sleeve for the coupler body moves down in order to with the awl point expose outside the sleeve, or twist move the sleeve for the coupler body rebound is in order to establish the awl point hood in the sleeve.

The beneficial effects of the above technical scheme are that: so can be when needs pierce the awl point to the hypoderm, twist earlier the sleeve to move downwards in order to expose the awl point in order to pierce the hypoderm to continue to go deep in order to drive the telescopic upper end and pierce the hypoderm, after the upper end of sleeve gets into subcutaneous thyroid gland chamber, twist move the sleeve upwards and establish including the awl point cover, thereby avoid the awl point to expose, thereby can avoid the awl point to cause the damage to tissues such as peripheral nerve, blood vessel.

In the technical scheme, the outer edge of the upper end of the sleeve is tapered or arc-shaped.

The beneficial effects of the above technical scheme are that: this reduces the resistance of the upper end of the sleeve to entering under the skin.

In the technical scheme, the inner hole of the sleeve is a counter bore, the aperture of the inner hole at the upper end of the sleeve is larger than that of the inner hole at the lower end of the sleeve, the inner hole at the upper end of the sleeve is provided with an internal thread matched with the external thread on the hook wall at the right side of the hook body, and the sleeve is screwed to move upwards relative to the hook body so as to cover the conical tip and the external thread on the hook wall at the right side of the hook body in the sleeve.

The beneficial effects of the above technical scheme are that: so can make the sleeve cover the screw thread department that lies in its below on the hook wall of hook right side all the time at the in-process that reciprocates to the external screw thread that lies in the sleeve below on the hook wall of hook right side causes the damage to patient's tissue.

In the technical scheme, the lower end of the hook body is bent towards the rear lower part, and the included angle of the bent part is a, and the a is 150-170 degrees.

The beneficial effects of the above technical scheme are that: therefore, after the hook body completely enters into the subcutaneous part, the local tissue in the thyroid cavity can be spread so as to facilitate the operation of a doctor.

In the technical scheme, the front end of the handle is connected with the upper left end of the hook body through a connecting rod arranged along the left-right direction, and the two ends of the connecting rod are respectively connected with the front end of the handle and the upper left end of the hook body.

The beneficial effects of the above technical scheme are that: so can regard the connecting rod as the changeover portion, after the coupler body completely gets into subcutaneous, can expose the connecting rod in order to avoid the front end of handle directly to support the puncture department on skin.

In the technical scheme, the handle comprises a handle and a rod body, the rod body is horizontally arranged along the front-back direction, the handle is arranged at the rear end of the rod body, and the front end of the rod body is fixedly connected with the left end of the connecting rod.

The beneficial effects of the above technical scheme are that: the structure is simple, and the holding is convenient.

In the technical scheme, the handle is in a straight bar shape and is horizontally arranged along the front-back direction, and the rear end of the rod body is fixed with the front end of the handle.

The beneficial effects of the above technical scheme are that: the structure is simple, the holding hand feeling is good, and the operation is convenient.

Drawings

Fig. 1 is an elevation view of a retractor for thyroid minimally invasive surgery according to an embodiment of the present invention;

FIG. 2 is a front view of a structure according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a sleeve according to an embodiment of the present invention;

fig. 4 is a right side view of the structure according to the embodiment of the present invention.

In the figure: 1 hook body, 11 conical tips, 2 sleeves, 3 handles, 31 handles, 32 rod bodies and 4 connecting rods.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model. The utility model is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

As shown in fig. 1 and 2, the present embodiment provides a thyroid minimally invasive surgery retractor, which includes a hook body 1, a sleeve 2, and a handle 3, wherein the handle 3 is horizontally disposed along a front-back direction, the hook body 1 is U-shaped, a hook opening of the hook body is upward, hook walls on two sides of the hook body 1 are distributed at intervals along a left-right direction, an upper end of a left side hook wall of the hook body 1 is fixedly connected with a front end of the handle 3, an upper end of a right side hook wall of the hook body 1 is provided with an external thread, an upper end of a thread position of the hook body is provided with a conical tip 11 with an upward conical tip, an inner wall of the sleeve 2 is provided with an internal thread matched with the external thread on the right side hook wall of the hook body 1, the sleeve 2 is in threaded connection with an upper end of the right side hook wall of the hook body 1, the sleeve 2 is screwed to move downward relative to the hook body 1 so as to expose the conical tip 11 outside the sleeve 2, or the sleeve 2 is screwed to move upward relative to cover the conical tip 11 in the sleeve 2 relative to the hook body 1, so can be when needs pierce the awl point to the hypoderm, twist earlier the sleeve to move downwards in order to expose the awl point in order to pierce the hypoderm to continue to go deep in order to drive the telescopic upper end and pierce the hypoderm, after the upper end of sleeve gets into subcutaneous thyroid gland chamber, twist move the sleeve upwards and establish including the awl point cover, thereby avoid the awl point to expose, thereby can avoid the awl point to cause the damage to tissues such as peripheral nerve, blood vessel.

In the technical scheme, the outer edge of the upper end of the sleeve 2 is tapered or arc-shaped, so that the resistance of the upper end of the sleeve entering the subcutaneous tissue can be reduced.

Wherein, as shown in fig. 3, the hole of sleeve 2 among the above-mentioned technical scheme is the counter bore, the aperture of the hole of 2 upper ends of sleeve is greater than the aperture of its lower extreme hole, the pore wall of 2 upper ends of sleeve hole be equipped with external screw thread matched with internal thread on the hook wall of coupler body 1 right side, and twist move sleeve 2 for coupler body 1 rebound is in order to with all cover the external screw thread on awl point 11 and the hook wall of coupler body 1 right side is established in sleeve 2, so can make the sleeve cover the screw thread department that lies in its below on the hook wall of coupler body right side all the time at the in-process that reciprocates to the external screw thread that lies in the sleeve below on the hook wall of coupler body right side causes the damage to patient's tissue on avoiding. Preferably, the total length of the sleeve is greater than the sum of the lengths of the conical tip and the external thread on the right hook wall of the hook body, and the length of the inner hole at the upper end in the sleeve is greater than the length of the conical tip.

As shown in fig. 4, in the above technical solution, the lower end of the hook body 1 is bent backwards and downwards, and the included angle at the bent position is a, and a is 150 ° to 170 °, so that after the hook body completely enters the subcutaneous space, the local tissue in the thyroid gland cavity can be spread to facilitate the operation of the doctor.

In the above technical scheme, the front end of the handle 3 with the upper left end of the hook body 1 is connected through a connecting rod 4 arranged along the left-right direction, and the two ends of the connecting rod 4 are respectively connected with the front end of the handle 3 and the upper left end of the hook body 1, so that the connecting rod can be used as a transition section, and after the hook body completely enters the skin, the connecting rod can be exposed to avoid the direct penetration of the front end of the handle to the skin.

Among the above-mentioned technical scheme handle 3 includes handle 31 and the body of rod 32, the body of rod 32 sets up along the fore-and-aft direction level, handle 31 sets up the rear end of the body of rod 32, the front end of the body of rod 32 with the left end of connecting rod 4 is connected fixedly, its simple structure, and takes and hold the convenience.

In the above technical scheme, the handle 31 is in a straight bar shape and is horizontally arranged along the front-back direction, the rear end of the rod body 32 is fixed with the front end of the handle 31, the structure is simple, the holding hand feeling is good, and the operation is convenient.

Wherein, the hook body has a circular section with a diameter of 3-5mm, the sleeve has an outer diameter of preferably 5-7mm, the hook body has a depth of 3-5cm, the bent portion of the lower end of the hook body bent backwards is 0.5-1cm away from the hook body, the distance between the hook walls at two sides of the hook body is 1-2cm, and the length of the connecting rod is 1-2 cm.

Preferably, the diameter of the right hook wall of the hook body is smaller than the diameter of the rest parts (the left hook wall of the hook body and the bottom of the hook body), and the outer diameter of the sleeve is equivalent to the diameter of the left hook wall of the hook body (the difference between the two is smaller and better, and the outer edge of the lower end of the sleeve can be chamfered to facilitate transition).

When the thyroid surgery is performed through a thoracoscope, an artificial air cavity needs to be established among the skin of the precordial region, the skin of the precordial region and the muscle of the chest wall, after the hook body of the retractor provided by the embodiment is completely penetrated through the skin during the surgery, the angle is adjusted between the gap between the skin and the chest wall so as to smoothly pull open the tissues at two sides of the thyroid gland to pull open the soft tissue layers (including the precordial muscle group and the like) covered on the thyroid gland to the side surface, and the lower end of the hook body is bent backwards so that the hook body can more flexibly fold the soft tissue and relatively fix the soft tissue to the side surface, thereby exposing the thyroid gland and forming the surgical field.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The drag hook for the thyroid minimally invasive surgery is characterized by comprising a hook body (1), a sleeve (2) and a handle (3), wherein the handle (3) is horizontally arranged along the front-back direction, the hook body (1) is U-shaped, the hook opening of the hook body is upward, hook walls on two sides of the hook body (1) are distributed at intervals along the left-right direction, the upper end of the hook wall on the left side of the hook body (1) is fixedly connected with the front end of the handle (3), external threads are arranged at the upper end of the hook wall on the right side of the hook body (1), a conical pointed end (11) with an upward conical pointed end is arranged at the upper end of the thread position of the hook wall, internal threads matched with the external threads on the hook wall on the right side of the hook body (1) are arranged on the inner wall of the sleeve (2), the sleeve (2) is connected with the upper end threads of the hook wall on the right side of the hook body (1) in a threaded manner, the sleeve (2) is screwed to move downwards relative to the hook body (1) so as to expose the conical pointed end (11) outside the sleeve (2), or screwing the sleeve (2) to move upwards relative to the hook body (1) so as to cover the conical tip (11) in the sleeve (2).

2. The retractor for thyroid gland minimal invasive surgery according to claim 1, wherein the outer edge of the upper end of the sleeve (2) is tapered or curved.

3. The drag hook for thyroid minimally invasive surgery according to claim 1, characterized in that the inner hole of the sleeve (2) is a counter bore, the inner hole of the upper end of the sleeve (2) has a larger diameter than the inner hole of the lower end thereof, the inner hole of the upper end of the sleeve (2) has an inner thread matching with the outer thread on the right hook wall of the hook body (1), and the sleeve (2) is screwed to move upwards relative to the hook body (1) so as to cover the conical tip (11) and the outer thread on the right hook wall of the hook body (1) in the sleeve (2).

4. The retractor for the minimally invasive thyroid surgery according to any one of claims 1 to 3, wherein the lower end of the hook body (1) is bent backwards and downwards, and the included angle of the bent part is a, and the a is 150-170 degrees.

5. The retractor for the thyroid gland minimal invasive surgery according to claim 4, wherein the front end of the handle (3) is connected with the upper left end of the hook body (1) through a connecting rod (4) arranged along the left-right direction, and two ends of the connecting rod (4) are respectively connected with the front end of the handle (3) and the upper left end of the hook body (1).

6. The retractor for thyroid gland minimal invasive surgery according to claim 5, wherein the handle (3) comprises a handle (31) and a rod body (32), the rod body (32) is horizontally arranged along the front-back direction, the handle (31) is arranged at the rear end of the rod body (32), and the front end of the rod body (32) is fixedly connected with the left end of the connecting rod (4).

7. The retractor for thyroid gland minimal invasive surgery according to claim 6, wherein the handle (31) is a straight bar shape, which is horizontally arranged along the front-back direction, and the rear end of the rod body (32) is fixed with the front end of the handle (31).