CN219516403U - Retractor for operation of tumor in pontic brain triangle - Google Patents

Abstract

A retractor for a tumor operation in a small brain triangle area comprises a left poking handle, a right poking handle, a rotating pin, a left poking claw binding clip, a right poking claw binding clip and a locking structure, wherein smooth pressing sheets are arranged on the upper end face heads of the left poking claw binding clip and the right poking claw binding clip, the smooth pressing sheets are perpendicular to a main rod and corresponding retracting teeth, and the bottoms of the smooth pressing sheets are arc-shaped bottom surfaces. The smooth pressing sheet is provided with an arc-shaped pressing surface with high inner side and low outer side along the bottom surface of the extending direction, and the exposed corners of the smooth pressing sheet and all the retracting teeth are arc transition corners. Therefore, when the surgical incision is opened to expand the surgical field, the skin layer of the surgical incision is pressed during expansion through the smooth pressing sheets arranged on the upper end face heads of the left thumb clamp head and the right thumb clamp head, so that the skin layer is prevented from being rolled upwards, and the outward warping of muscles can be effectively prevented. Not only the operation space is increased, but also the operation field can be fully exposed, resulting in the phenomenon of upward sliding and slipping of the poking device.

Description

Retractor for operation of tumor in pontic brain triangle

[ field of technology ]

The utility model relates to the field of surgical retractors, in particular to a surgical retractor for treating tumor in a pontic brain triangle.

[ background Art ]

The human head bridge cerebellar triangle is a cone-shaped main body triangle, which is on the front outer side of the posterior cranium. The outer edge of the bridge from the front inner side to the inner edge of the rock bone at the rear outer side and the outer side of the cerebellum at the rear lower side form a conical narrow space, and the cone angle is positioned in the rock clamp. The importance of this region is to concentrate the auditory nerve, facial nerve, the jatropha nerve, the rock vein, the anterior superior cerebellum artery, etc.

When a human gets a tumor in the trigonal area of the pontic brain, a common treatment regimen is to perform a thorough surgical resection. The key to the success of such surgery is the adequate exposure of the surgical field. The surgical retractor is an essential fixing device in the operation, is used for retracting tissues, exposing the operation range, facilitating exploration and operation, fully exposing the operation field of view and obviously reducing the labor intensity of an operation assistant.

At present, the structure of the retractor for the tumor surgery of the cerebellum is shown in fig. 1, the retractor comprises a left toggle handle 1, a right toggle handle 2, a rotary pin 3, a left toggle clamp head 4, a right toggle clamp head 5 and a locking structure 6, the left toggle handle 1 and the right toggle handle 2 are identical in structure, the left toggle handle 1 and the right toggle clamp head 2 both comprise a handheld end 11, an arc-shaped arm 12, a hinging point 13 and a connecting clamp seat 14, the hinging point 13 is arranged between the handheld end 11 and the arc-shaped arm 12, the connecting clamp seat 14 is fixed at the front end of the arc-shaped arm 12, the left toggle handle 1 and the right toggle handle 2 are hinged at the hinging point 13 through the rotary pin 3, the left toggle clamp head 4 and the right toggle clamp head 5 are respectively arranged on the connecting clamp seat 14 of the left toggle handle 1 and the right toggle clamp head 2, the locking structure 6 is arranged between the left toggle handle 1 and the right toggle clamp head 2, the left toggle clamp head 4 and the right toggle clamp head 5 are identical in structure, the two are symmetrically arranged, the left toggle clamp head 4 comprises a main rod 41 and a retracting tooth, and the retracting tooth is arranged at intervals along the lower end face of the main rod 41.

Although the retractor with the structure can realize the pulling-out of the operation incision, the cortex at the operation incision is easy to turn up in the actual pulling-out process, the operation visual field is easy to change, the retractor can be moved up and fall off when serious, the operation is difficult to achieve the expected effect, and the operation is failed when serious.

[ utility model ]

In order to overcome the problems in the prior art, prevent the knife skin layer from turning upwards when the retractor is used for opening the operation incision and eliminate the phenomenon of upward sliding and slipping of the retractor, the utility model aims to provide the retractor for the operation of the tumor in the triangular area of the spinocerebellar.

The technical scheme adopted by the utility model is as follows:

the utility model provides a be used for bridge cerebellum triangle tumour operation retractor, including left side stirring handle, right side stirring handle, the round pin, left side pusher dog binding clip, right side pusher dog binding clip and locking structure, left side stirring handle, right side stirring handle passes through the round pin hinge and connects, left side pusher dog binding clip and right pusher dog binding clip are installed respectively at the arc arm of left side stirring handle, right side stirring handle, be equipped with locking structure between left side stirring handle, right side stirring handle, left side pusher dog binding clip and right pusher dog binding clip are two symmetries, set up the structure identically, left side pusher dog binding clip includes mobile jib and retractor tooth, retractor tooth sets up characterized by along terminal surface interval under the mobile jib: the upper end face heads of the left pusher dog binding clip and the right pusher dog binding clip are provided with smooth pressing sheets which are perpendicular to the main rod and the corresponding retracting teeth.

Further, the lower end surfaces of the left thumb claw binding clip and the right thumb claw binding clip are provided with retracting teeth, the retracting teeth on the left thumb claw binding clip and the right thumb claw binding clip are symmetrically arranged, the left thumb claw binding clip and the right thumb claw binding clip are symmetrically distributed in a splayed shape when seen from the end surface, and the lengths of the retracting teeth inwards from the exposed ends are shortened one by one.

Further, a first retracting tooth, a second retracting tooth, a third retracting tooth and a fourth retracting tooth are sequentially arranged on the lower end surfaces of the left thumb clamp head and the right thumb clamp head at intervals, and the first retracting tooth is positioned at the exposed end and has a length larger than that of other retracting teeth.

Further, a smooth sheeting is provided on the top outer side of the first retracting teeth.

Further, the bottom of the transverse section of the smooth pressing piece is an arc bottom surface.

Further, the bottom of the longitudinal section of the smooth pressing sheet is provided with an arc-shaped pressing surface with the inner side high and the outer side low.

Further, the exposed corners of the smooth pressing sheet and all the retracting teeth are arc transition corners.

Because the retracting teeth on the left claw forceps head and the right claw forceps head are distributed in a splayed manner, the lengths of the retracting teeth from front to back are shortened one by one, and the upper end face heads of the left claw forceps head and the right claw forceps head are provided with smooth pressing sheets, when the surgical incision is opened to expand the surgical field, the surgical incision is expanded to form a preset large surgical field through the retracting teeth on the left claw forceps head and the right claw forceps head, and the skin layer of the surgical incision is pressed during expansion through the smooth pressing sheets arranged on the upper end face heads of the left claw forceps head and the right claw forceps head, so that the skin layer is prevented from being overturned upwards. The defects existing in the prior art can be thoroughly eliminated. The first retracting teeth and the second retracting teeth in the surgical retractor mainly retract muscles, the third retracting teeth and the fourth retracting teeth mainly retract scalp, and the smooth pressing sheet arranged on the outer side of the upper end of the retracting teeth can effectively prevent the muscles from being retracted and can also effectively prevent the muscles from being tilted outwards. The transverse section of the smooth pressing sheet is designed to be an arc-shaped bottom surface, the longitudinal section is designed to be an arc-shaped pressing surface, so that the operation space is increased, the operation visual field can be fully exposed, the upward side turning of the knife skin layer when the surgical incision is opened by the opener is prevented, the phenomenon that the opener moves upwards and slips is caused, and the secondary damage to tissues around the incision in the process of pressing and opening the surgical incision can be eliminated.

[ description of the drawings ]

Fig. 1 is a schematic view of a prior art retractor.

Fig. 2 is a schematic structural view of the present utility model.

Fig. 3 is a view from direction a of fig. 2, rotated 90 degrees clockwise.

Fig. 4 is a schematic view of a transverse cross-section of a smooth preform.

Fig. 5 is an enlarged sectional view of B-B in fig. 3, showing a schematic view of the compression arcuate surface of the longitudinal section of the smooth compression sheet.

In the figure, a 1-left toggle handle; 2-right toggle handle; 3-rotating pins; 4-left finger clip; 5-right finger clip; a 6-locking structure; 11-a hand-held end; 12-arc arms; 13-hinge point; 14-connecting the clamping seat; 41-a main rod; 42-first retracting teeth; 43-second retracting teeth; 44-third retracting teeth; 45-fourth retracting teeth; 46-smooth tabletting; 47-arc bottom surface; 48-arc compression surface.

[ detailed description ] of the utility model

The technical solutions of the present utility model will be clearly and completely described below with reference to the examples of the present utility model and the accompanying drawings, and it is obvious that the described examples are only one implementation of the present utility model, not all. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: the utility model provides a retractor for a bridge cerebellum triangle tumor surgery, as shown in fig. 2-5, it includes left toggle handle 1, right toggle handle 2, round pin 3, left toggle handle 4, right toggle handle binding clip 5 and locking structure 6, left toggle handle 1, right toggle handle 2 structure is the same, both include handheld end 11, pin joint 13, arc arm 12 and connection holder 14, pin joint 13 sets up between handheld end 11 and arc arm 12, connection holder 14 sets up at the outer end of arc arm 12, left toggle handle 1, right toggle handle 2 articulates through round pin 3, left toggle handle 4 and right toggle handle binding clip 5 are installed respectively on left toggle handle 1, right toggle handle 2 connect holder 14, be equipped with locking structure 6 between left toggle handle 1, right toggle handle 2, left toggle handle 4 and right toggle handle binding clip 5 structure is the same, both symmetry sets up, the left pusher dog binding clip 4 and the right pusher dog binding clip 5 comprise a main rod 41, a first retracting tooth 42, a second retracting tooth 43, a third retracting tooth 44, a fourth retracting tooth 45 and a smooth pressing piece 46, wherein the first retracting tooth 42, the second retracting tooth 43, the third retracting tooth 44 and the fourth retracting tooth 45 are all arranged at intervals along the lower end face of the main rod 41, the lengths of the retracting teeth from front to back are shortened one by one, the smooth pressing piece 46 is arranged at the upper end face heads of the left pusher dog binding clip 4 and the right pusher dog binding clip 5 and is perpendicular to the main rod 41 and the first retracting tooth 42, the bottoms of the transverse sections of the smooth pressing pieces 46 are arc-shaped bottom faces 47, as shown in fig. 4, the bottoms of the longitudinal sections of the smooth pressing pieces 46 are provided with arc-shaped pressing faces 48 with high inner sides and low outer sides, as shown in fig. 5, and the exposed edges of all the smooth pressing pieces are arc-shaped transition corners.

The application method of the utility model is as follows:

the operation retractor is used for gently towing the head of a patient at the wound position behind the ear which is padded with a saline gauze pad or a wet treatment towel, and the smooth pressing sheets 46 on the two sides of the retracting teeth can effectively prevent the muscle from being retracted and can also effectively prevent the muscle from being tilted outwards. So that the operation visual field can be fully exposed, the operation space of the main doctor is increased, and the tumor is perfectly resected.

It should be noted that the foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited to the foregoing embodiment, but may be modified or some of the technical features described in the foregoing embodiments may be replaced with equivalents thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. A be used for bridge cerebellum triangle tumour operation retractor, including left side stirring handle (1), right side stirring handle (2), rotary pin (3), left side pulling claw binding clip (4), right side pulling claw binding clip (5) and locking structure (6), left side stirring handle (1), right side stirring handle (2) are articulated through rotary pin (3), arc arm at left side stirring handle (1), right side pulling handle (2) is installed respectively to left side pulling claw binding clip (4) and right pulling claw binding clip (5), be equipped with locking structure (6) between left side stirring handle (1), right side stirring handle (2), left side pulling claw binding clip (4) and right pulling claw binding clip (5) two symmetry set up the structure the same, left side pulling claw binding clip (4) include mobile jib (41) and the tooth of pulling, the tooth of pulling is followed terminal surface interval setting under mobile jib (41), characterized by: the upper end face heads of the left pusher dog binding clip (4) and the right pusher dog binding clip (5) are provided with smooth pressing sheets (46), and the smooth pressing sheets (46) are perpendicular to the main rod (41) and the corresponding retracting teeth.

2. The retractor for a desmosomal trigonometric tumor surgery according to claim 1, wherein: the lower end surfaces of the left pusher dog binding clip (4) and the right pusher dog binding clip (5) are provided with retracting teeth, the retracting teeth on the left pusher dog binding clip (4) and the right pusher dog binding clip (5) are symmetrically arranged, the eight-shaped retracting teeth are symmetrically distributed when seen from the end surface, and the lengths of the retracting teeth inwards from the exposed ends are shortened one by one.

3. The retractor for a desmosomal trigonometric tumor surgery according to claim 1, wherein: the lower end surfaces of the left thumb claw binding clip (4) and the right thumb claw binding clip (5) are sequentially provided with a first retracting tooth (42), a second retracting tooth (43), a third retracting tooth (44) and a fourth retracting tooth (45) at intervals, wherein the first retracting tooth (42) is positioned at the exposed end, and the length of the first retracting tooth is larger than that of other retracting teeth.

4. The retractor for a desmosomal trigonometric tumor surgery according to claim 1, wherein: a smooth compression tab (46) is disposed on the top outboard side of the first retractor teeth (42).

5. The retractor for a desmosomal trigonometric tumor surgery according to claim 1, wherein: the bottom of the smooth pressing piece (46) is an arc-shaped bottom surface (47).

6. The retractor for a desmosomal trigonometric tumor surgery according to claim 1, wherein: the bottom surface of the smooth pressing sheet (46) along the extending direction is provided with an arc-shaped pressing surface (48) with the inner side higher and the outer side lower.

7. The retractor for a desmosomal trigonometric tumor surgery according to claim 1, wherein: the exposed corners of the smooth pressing sheet (46) and all the retracting teeth are arc transition corners.