CN204671201U - A kind of endoscopic surgery drag hook with Telescopic - Google Patents

Abstract

The utility model relates to the technical field of medical instruments, in particular to a draw hook with a retractable suction device in endoscopic surgery, comprising a main draw hook and a sliding rod. The front end of the main draw hook is the main draw hook body, the middle is the main draw hook rod, and the tail is the main draw hook The hook handle, the tail of the sliding rod is connected with the sliding rod handle, wherein: the main retracting hook rod is a hollow tubular structure axially penetrating through a through hole; the sliding rod extends into the main retracting hook rod, and the sliding rod handle extends out of the main retracting hook rod. The beneficial effect of the utility model is that the tapered blunt tip of the retractor body for external skin pierces the skin, and the retractor is rotated into the operation cavity. Since the retractor has a degree of freedom of 360 degrees, with the assistance of the intracavity instruments, The retractor can be adjusted to the desired position to pull the surrounding tissue and fully expose the surgical field of view; when the surgical field is unclear due to bleeding, bleeding and other reasons during the operation, the sliding rod can be matched with the suction device In use, the suction is carried out under the positioning cooperation of the pull hook.

Description

A retractable hook for endoscopic surgery

technical field

The utility model relates to the technical field of medical instruments, in particular to a retractable hook for endoscopic surgery.

Background technique

The advantage of endoscopic surgery is that it can identify finer tissue structures under a magnified field of view, but its disadvantages are the narrow operating space, limited means to expose the surgical field and control bleeding, and the operator's "tactile" function is significantly weakened. Taking endoscopic thyroid surgery as an example, the thyroid is an organ rich in blood supply and is prone to bleeding. Common causes include improper treatment of the superior and inferior thyroid arteries or middle veins, rupture of solid tumors, and hemorrhage from dilated blood vessels in the section of the gland (more common in Hyperthyroidism or nodular goiter) and accidental injury to surrounding large blood vessels, etc., especially when the thyroid adenoma is huge, intraoperative exposure is more difficult, and forced surgery can easily cause bleeding. On the one hand, the red staining of the operative field will obviously affect the operator's accurate identification of the anatomical relationship, and will have an impact on the psychology of the operator, hindering accurate judgment during the operation; on the other hand, if the bleeding point cannot be found effectively and quickly, only It can be transferred to open surgery, which loses the meaning of endoscopic surgery.

In order to minimize damage to normal and important structures, two points must be noted and emphasized: 1. How to expand a suitable surgical space; 2. How to obtain and maintain no bleeding or less bleeding and a clear surgical field of view. These two points are also the key factors affecting the success of the operation. Under normal circumstances, once unexpected bleeding occurs, the bleeding site should be quickly compressed with gauze. After sucking up the accumulated blood, the cause and point of bleeding were detected. Also take endoscopic thyroid surgery as an example. If the proximal end of the inferior thyroid artery retracts to the retroclavicular hemorrhage, sutures are used to pull the lower pole of the thyroid head to the head side, so that the adjacent tissues are moved up to reveal blood spots. The aspirator sucks up the accumulated blood, and the left hand holds the non-injured grasping forceps to accurately lift the stump of the artery and clamp it with a blood vessel clip; if the upper part of the gland is bleeding, the bleeding can be stopped by separating the forceps to clamp the upper artery trunk, so as to avoid the blindness of the ultrasonic hemostasis knife Injury to important structures due to hemostasis; if the amount of bleeding is large or local exposure is difficult, it should be decisively transferred to open surgery for hemostasis. However, since only three people can be accommodated around the operative field, and all three people need to sit in order not to interfere with each other, it is required that the instruments in the same puncture cannula can perform more than two operating functions at the same time, such as: pulling the front of the thyroid In the case of sternocleidomastoid and sternocleidomastoid muscles, the thyroid gland can be lifted or the bleeding in the surgical field can be exhausted, so as to reduce the number of times the main operator changes instruments and solve practical problems such as difficulty in exposure.

The Chinese utility model patent with the application number "200920040170.7", the authorized announcement number "CN 201404249Y" and the title "Special suspension hook for endoscopic thyroid surgery with a single small incision in the neck" discloses a single neck with suction function. The special suspension retractor for small-incision endoscopic thyroid surgery includes: retractor handle, retractor ends arranged on both ends of the retractor handle, and suction device heads are respectively arranged on the retractor ends. This special retractor has a suction function, which can suck away a large amount of ultrasonic smoke generated during the operation. This utility model is only suitable for open endoscopic assisted surgery with small incisions, and is not suitable for complete endoscopic surgery, and the position of the suction device is fixed, the suction range is limited, and it is impossible to position and suction the bleeding or oozing blood in the operating cavity.

The Chinese utility model patent with the application number "200920040171.1", the authorized announcement number "CN 201404241Y" and the title "special suction head for endoscopic thyroid surgery with a single small incision in the neck" discloses a single small incision in the neck endoscopic thyroid gland The special suction head in the operation includes a hollow handle, a suction tube connector is connected to one end of the hollow handle, a screw connector is arranged on the other end of the hollow handle, and a screw connector is arranged on one end of the curved connecting tube. The nut connector that the screw connectors cooperate with each other, the curved connecting tube is fixed on the other end of the hollow handle through the mutual cooperation of the screw connector and the nut connector, and the suction head is connected to the other end of the curved connecting tube Part, a number of suction holes are arranged on the head of the aspirator. When this utility model is used for suction, due to the need to additionally configure corresponding pulling tools, it is easy for the main operator to increase the number of times to replace the device and the occurrence of practical problems such as difficulty in revealing.

Therefore, there is currently a lack of a retractor for endoscopic surgery that can not only maintain the operation space, but also have the function of positioning and attracting when the operation field is bleeding.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, to provide a simple and flexible operation, which can not only establish and maintain a stable intracavity operating space in endoscopic surgery, but also prevent accidental bleeding or intracavity tissue occurrence in the operation field. When the bleeding is oozing, it is used for positioning and suction, so as to quickly restore a clear vision, and assist the surgeon to find the bleeding site and treat it with a retractable hook.

In order to achieve the above purpose, the utility model provides a retractable hook for endoscopic surgery, including a main retractor and a sliding rod. The front end of the main retractor is the main retractor body, the middle is the main retractor rod, and the tail is the main retractor. Pull hook handle, the tail of the sliding rod is connected to the sliding rod handle, wherein:

The main drag hook rod is a hollow tubular structure with a through hole along its axial direction;

The sliding rod extends into the main hook rod, and the handle of the sliding rod extends out of the main drag hook rod. The main retractor body can flexibly rotate and move by 360° in the surgical operation cavity. By adjusting the positions of the main retractor and the sliding rod, it can effectively pull the surrounding tissues and fully expose the surgical operation field of view.

Preferably, the sliding rod is a hollow tubular structure axially penetrated with a through hole, and the head of the sliding rod is a tapered structure. The sliding rod can be communicated with the air pressure regulating device for positioning point suction; the head of the sliding rod with a tapered structure is blunt and will not cause unnecessary damage to surrounding tissues.

Preferably, the main drag hook body and the main drag hook rod are perpendicular to each other, and the main drag hook body is a "U"-shaped semi-oblong body structure. The semi-oblong body structure is a shape obtained by cutting an oblong body along its long axis direction. The main body of the retractor is bent from a metal tube, and the port at the free end is in the shape of a blunt arc, which is not only conducive to puncture, but after the puncture is guided, the retractor can enter the operating cavity along the "U"-shaped arc of the main retractor body , and can avoid accidental damage to important blood vessels in the cavity.

Preferably, a keyway is provided in the handle of the main hook, and a locking slider is provided in the keyway;

The locking slider locks the sliding rod by sliding in the keyway. When the main retractor and the sliding rod are adjusted to a suitable position, the relative position of the sliding rod and the main retractor is locked by sliding the auxiliary retractor locking slider, so as to solve the problem that the assistant needs to use both hands to continuously pull the retractor in multiple directions to fix it.

Preferably, the main hook rod has a length of 80-100 mm, an outer diameter of 3-5 mm, and an inner diameter of 2-3 mm.

Preferably, the length of the sliding rod is 120-150 mm. Its outer diameter is 2-3 mm, and its inner diameter is 1-2 mm.

Preferably, the outer diameter of the sliding rod is 2-3 mm, and the inner diameter is 1-2 mm.

Preferably, at least one auxiliary suction hole is formed through the side wall of the head of the sliding rod.

Preferably, the minor axis of the main drag hook body is 3-5 mm.

The beneficial effect of the utility model is that after the injection needle is used for puncture guidance, the tapered blunt tip of the skin external retractor body penetrates into the skin, and the retractor is rotated into the operation cavity. Since the retractor has a degree of freedom of 360 degrees, With the assistance of intracavitary instruments, the retractor can be adjusted to the required position to pull the surrounding tissue and fully expose the surgical field of view; when the surgical field is unclear due to bleeding, bleeding, etc. The sliding rod is used in conjunction with the suction device, and positioning and suction are performed under the positioning of the pull hook to quickly restore a clear vision. While maintaining the operating space in the cavity, the utility model also has the functions of controllability, retractable positioning, suction, and blood suction, which can significantly reduce the number of times the main operator replaces instruments, shorten the operation time, and ensure the fluency of the operation to a certain extent. , and for active bleeding, the effect of auxiliary ligation of blood vessel stumps is significant.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of main drag hook in the utility model;

Fig. 3 is the structural representation of slide bar in the utility model;

Fig. 4 is a sectional view of the handle of the main drag hook in the utility model.

in:

11-Main retractor body 12-Main retractor rod 13-Main retractor handle

131-Lock slider 21-Sliding rod 22-Sliding rod handle

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.

Example 1:

A retractable hook for endoscopic surgery as shown in Figures 1 to 4 includes a main draw hook and a sliding rod. The front end of the main draw hook is the main draw hook body 11, the middle is the main draw hook rod 12, and the tail is The main hook handle 13, the tail of the sliding rod 21 is connected to the sliding rod handle 22, wherein:

The main drag hook rod 12 is a hollow tubular structure axially penetrating with a through hole;

The sliding rod 21 extends into the main drag hook rod 12 , and the sliding rod handle 22 extends out of the main drag hook rod 12 . The main retractor body 11 can flexibly rotate and move by 360° in the surgical operation cavity. By adjusting the positions of the main retractor and the sliding rod, it can effectively pull the surrounding tissues and fully expose the surgical operation field of view.

The sliding rod 21 is a hollow tubular structure axially penetrated with a through hole, and the head of the sliding rod 21 is a tapered structure. The sliding rod can be communicated with the air pressure regulating device to perform positioning point suction.

The main drag hook body 11 and the main drag hook rod 12 are perpendicular to each other, and the main drag hook body 11 is a "U"-shaped semi-oblong body structure. The main body of the retractor is bent from a metal tube, and the port at the free end is in the shape of a blunt arc, which is not only conducive to puncture, but after the puncture is guided, the retractor can enter the operating cavity along the "U"-shaped arc of the main retractor body , and can avoid accidental damage to important blood vessels in the cavity.

The main pull hook handle 13 is provided with a keyway, and the keyway is provided with a locking slider 131;

The locking slider 131 locks the sliding rod by sliding in the keyway.

The length of the main drag hook rod 12 is 90mm, its outer diameter is 4mm, and its inner diameter is 3mm;

The outer diameter of the sliding rod 21 is 2.5mm, and the inner diameter is 1.5mm;

The minor axis of the main drag hook body 11 is 4mm.

At least one auxiliary suction hole is formed through the head side wall of the sliding rod 21 .

Actual use case:

After the injection needle is used as a puncture guide, the tapered blunt tip of the retractor body used for external skin pierces the skin, and the retractor is rotated into the operation cavity. Since the retractor has 360 degrees of freedom, with the assistance of intracavitary instruments, it can Adjust the retractor to the desired position to pull the surrounding tissue and fully expose the surgical field of view; when the main retractor and the sliding rod are adjusted to a suitable position, lock the sliding rod and the main retractor by sliding the auxiliary retractor locking slider. Relative position, so as to solve the problem that the assistant needs to use both hands to continuously pull the multi-directional fixed retractor; when the operation field is unclear due to bleeding, bleeding and other reasons during the operation, the sliding rod can be used in conjunction with the suction device. With the positioning of the hook, the positioning and attraction are carried out, and the clear vision can be quickly restored. While maintaining the operating space in the cavity, the utility model also has the functions of controllability, retractable positioning, suction, and blood suction, which can significantly reduce the number of times the main operator replaces instruments, shorten the operation time, and ensure the fluency of the operation to a certain extent. , and for active bleeding, the effect of auxiliary ligation of blood vessel stumps is significant.

The preferred embodiments of the utility model creation have been specifically described above, but the utility model creation is not limited to the described embodiments, and those skilled in the art can also make Various equivalent modifications or replacements are included within the scope defined by the claims of the present application.

Claims (8)

1. A retractor with telescopic function for endoscopic surgery, comprising a main retractor and a slide bar, characterized in that: the front end of the main retractor is a main retractor body (11), the middle is a main retractor rod (12), and the tail It is the main pull hook handle (13), and the afterbody of the slide bar (21) is connected with the slide bar handle (22), wherein: The main drag hook rod (12) is a hollow tubular structure axially penetrating through holes; The sliding rod (21) extends into the main hook rod (12), and the handle of the sliding rod (22) stretches out of the main hook rod (12). 2. A retractable hook for endoscopic surgery according to claim 1, characterized in that: the sliding rod (21) is a hollow tubular structure axially penetrating through a through hole, the sliding rod ( 21) The head is a tapered structure. 3. A retractable hook for endoscopic surgery according to claim 1, characterized in that: the main retractor body (11) and the main retractor rod (12) are perpendicular to each other, and the main retractor body (11) ) is a semi-oblong body structure of "U" font. 4. A retractable hook for endoscopic surgery according to claim 1, characterized in that: the main retractor handle (13) is provided with a keyway, and the keyway is provided with a locking slider (131) ; The locking slider (131) locks the sliding rod (21) by sliding in the key groove. 5. A retractable hook for endoscopic surgery according to claim 1, characterized in that: the length of the main retractor rod (12) is 80-100 mm, its outer diameter is 3-5 mm, and the inner diameter is 3-5 mm. The diameter is 2-3mm. 6. A retractable hook for endoscopic surgery according to claim 1 or 2, characterized in that: the length of the sliding rod (21) is 120-150 mm, and its outer diameter is 2-3 mm. The inner diameter is 1-2 mm. 7. A retractable hook for endoscopic surgery according to claim 1 or 2, characterized in that at least one auxiliary suction hole is provided through the side wall of the head of the sliding rod (21). 8. A retractable hook for endoscopic surgery according to claim 3, characterized in that: the minor axis of the main retractor body (11) is 3-5 mm.