CN112826550A

CN112826550A - Dilator capable of drawing skin flap on back wall of external auditory canal

Info

Publication number: CN112826550A
Application number: CN202110175252.8A
Authority: CN
Inventors: 虞幼军; 何日雷; 周晓娓
Original assignee: Foshan First Peoples Hospital Foshan Hospital Sun Yat Sen University
Current assignee: Foshan First Peoples Hospital Foshan Hospital Sun Yat Sen University
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-05-25

Abstract

The invention discloses a distracter capable of dragging a skin flap on the back wall of an external auditory canal, which comprises a transversely arranged body, wherein the body comprises a first distraction body, a second distraction body, a third distraction body, a first locking mechanism and a second locking mechanism, a first distraction mouth and a second distraction mouth are arranged at two ends of a first distraction arm far away from a first pressure arm, the first distraction mouth or the second distraction mouth is connected with an auxiliary mouth block, a hook head is arranged at one end of a third distraction body, a third deep distraction part is stretched into a shallow skin flap part to drag soft tissues, stable operation of doctors or medical staff is facilitated, the operation field is further expanded, the placing space of arms of an operator is not occupied, the operation is convenient, the distraction effect is good, the operation is greatly facilitated, and the operation speed and the operation quality are obviously improved.

Description

Dilator capable of drawing skin flap on back wall of external auditory canal

Technical Field

The invention relates to the field of medical appliances, in particular to a spreader capable of pulling a skin flap on the back wall of an external auditory canal.

Background

At present, the otoscope operation of the external auditory canal is widely developed, an operation spreader is often used in the operation to fully expose the operation field and provide an operation space, the traditional operation spreaders mainly comprise two types, namely a short row tooth spreader and a single long tooth spreader, and the short row tooth spreader has the defects that the short row tooth spreader cannot extend into the external auditory canal, cannot effectively spread a shallow skin flap of the external auditory canal, and cannot solve the problem of blocking obstruction of the shallow skin flap of the external auditory canal in the operation; the single-long-tooth spreader has the disadvantages that the effect of spreading the first incision to open the external auditory meatus is not as good as that of a short row of teeth spreader, and the first incision is easy to loosen and fall off in the operation, and the second incision enters a narrow external auditory meatus due to larger tooth width, further hinders the movement of an instrument, pushes a skin flap at the shallow part of the external auditory meatus to move limitedly, and only pushes the skin flap to the side edge, so that the effect is limited.

Disclosure of Invention

The invention aims to provide a spreader capable of pulling a skin flap on the back wall of an external auditory canal, so as to solve one or more technical problems in the prior art and provide at least one beneficial choice or creation condition.

The solution of the invention for solving the technical problem is as follows:

the solution of the invention for solving the technical problem is as follows: a distractor capable of drawing skin flaps on the back wall of an external auditory canal comprises a transversely arranged body, wherein the body comprises a first distraction body, a second distraction body, a third distraction body, a first locking mechanism and a second locking mechanism, the first distraction body is hinged with the second distraction body through a first pin shaft which is vertically arranged, the first distraction body comprises a first pressing arm and a first distraction arm which are connected with each other, the second distraction body comprises a second pressing arm and a second distraction arm which are connected with each other, the first pin shaft is arranged at the joint of the first pressing arm and the first distraction arm, the joint of the second pressing arm and the second distraction arm is provided with a first distraction mouth at one end of the first distraction arm far away from the first pressing arm, a second distraction mouth is arranged at one end of the second distraction arm far away from the second pressing arm, the outer end of the first distraction mouth or the second distraction mouth is connected with an auxiliary mouth block, and the third distraction body can be installed on the auxiliary mouth block in a sliding manner along the extending direction of the third distraction body, the one end of the third body of strutting is provided with the gib head, second locking mechanism sets up between the third body of strutting and vice mouth piece, second locking mechanism is used for locking the third and struts the relative position between body and the vice mouth piece, first locking mechanism sets up between first pressure arm and second pressure arm, first locking mechanism is used for locking the relative angle between first pressure arm and the second pressure arm.

The invention has the beneficial effects that: when the medical instrument is used, the first spreading mouth is abutted with the skin tissue on the upper side of the first incision, the second spreading mouth is abutted with the skin tissue on the lower side of the first incision, the first pressing arm and the second pressing arm are mutually closed or opened to control the first spreading arm and the second spreading arm to be relatively opened, so that the first spreading mouth and the second spreading mouth spread the first incision of the operation part, the spreading degree between the first spreading arm and the second spreading arm is fixed through the first locking mechanism, the relative fixation between the first spreading mouth and the second spreading mouth is realized, then the third spreading body is stretched into the shallow skin flap, the hook head hooks the soft tissue of the shallow back wall skin flap, then the third spreading body is pulled, the operation field at the shallow back wall flap is exposed, and the relative position between the third spreading body and the auxiliary mouth block is fixed through the second locking mechanism, the shallow skin flap can be continuously pulled, and the medical care operation can be conveniently performed by doctors or stable operation personnel, further expand the art field, and do not occupy the space of placing of art person's arm, convenient operation struts effectually, very big having made things convenient for the operation, obviously improved operation speed and quality.

As a further improvement of the above technical solution, finger fasteners are disposed at both the end of the first pressing arm away from the first spreading arm and the end of the second pressing arm away from the second spreading arm.

When the opening is opened by using the opener, a finger is only required to be stretched into the finger buckle for operation, so that the unfolding angle of the first pressing arm and the second pressing arm is controlled, and an operator can use the opener more conveniently.

As a further improvement of the above technical solution, the second locking mechanism includes a second lock catch disposed on the secondary nozzle block, and a fixed rack disposed on the third spreading body, the fixed rack extends along the third spreading body, and the second lock catch is connected with the fixed rack through a tooth catch.

When the third distraction body struts the skin flap on the back wall of the shallow part, the distraction position of the third distraction body is fixed by connecting the second lock catch with the tooth buckle of the fixed rack, so that the third distraction body can continuously distract the skin flap on the back wall of the shallow part, and the surgical field is stably provided.

As a further improvement of the technical scheme, the teeth on the fixed rack are in a helical tooth structure.

Under the effect of skewed tooth structure for the third props the body and can outwards slide the back, receives the unable inside backsliding of second hasp's fixed, convenient operation.

As the further improvement of above-mentioned technical scheme, the second hasp includes the checkpost body, fixed axle, elastic component, the checkpost body is including the checkpost tooth portion and the checkpost splenium that are the contained angle and connect each other, the checkpost body passes through the fixed axle is rotationally installed on vice mouth piece, the fixed axle sets up in checkpost tooth portion and checkpost splenium junction, the elastic component sets up between checkpost splenium and vice mouth piece lateral wall, the elastic component impels the checkpost body rotatory around the fixed axle axis, makes checkpost tooth portion with fixed rack block, checkpost tooth portion be provided with the locking butt piece of vice mouth piece butt.

When strutting the back wall skin flap, the accessible compresses the elastic component, makes the checkpost body rotate around the fixed axle for checkpost tooth portion is thrown off with fixed rack, and the flexibility of strutting the back wall skin flap has been improved to the strutting position of the adjustment third strutting body, later checkpost tooth portion realizes the locking location through locking butt piece and vice mouth piece butt.

As a further improvement of the technical scheme, the first locking mechanism comprises arc-shaped sawteeth and a first lock catch, the arc-shaped sawteeth are connected to the first pressure arm, the circle center of the arc-shaped sawteeth is concentric with the axis of the first pin shaft, the first lock catch is fixedly connected to the second pressure arm, and the first lock catch is connected with the arc-shaped sawteeth through the tooth catch.

When strutting the incision, be connected through the tooth knot of first hasp and arc sawtooth for strutting the ware and keeping the state of strutting the incision, continuously provide the art wild for the art person, be favorable to going on of operation, increased stability and convenience.

As a further improvement of the above technical solution, a slider is disposed at one end of the third spreading body away from the hook head.

When the back wall skin flap is unfolded, the pull head is beneficial to the third unfolding body to be pulled under stress, so that the operation is more convenient and rapid.

As a further improvement of the above technical scheme, the first arm of strutting includes first arm, second arm brace, the second round pin axle that first arm brace extends through being about is articulated with the second arm brace, the second arm brace includes third arm brace, fourth arm brace, the third arm brace is articulated with the fourth arm brace through being about the third round pin axle that extends.

Therefore, the second supporting arm and the fourth supporting arm can swing vertically, the first supporting arm and the third supporting arm are pressed downwards, and the situation that the operation is influenced by too high tilting is avoided.

As a further improvement of the technical scheme, the first spreading mouth is provided with a vertically arranged first claw head, and the second spreading mouth is provided with a vertically arranged second claw head.

One side of the incision is clamped by the first claw head, and the other side of the incision is clamped by the second claw head, so that the opening mouth is more compactly connected with the first incision, the sliding in the operation is avoided, and the stability of the opening is further improved.

Drawings

The invention is further described with reference to the accompanying drawings and examples;

FIG. 1 is a top view of one embodiment of a distractor provided by the present invention;

fig. 2 is a partially enlarged view a of fig. 1.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 2, the spreader for pulling the skin flap on the back wall of the external auditory canal of the present invention is made as follows:

the distractor of the embodiment comprises a transversely arranged body, the body comprises a first distracting body 100, a second distracting body 200, a third distracting body 300, a first locking mechanism 400 and a second locking mechanism 500, the first distracting body 100 is hinged to the second distracting body 200 through a first pin 600 which is vertically arranged, wherein the first distracting body 100 comprises a first pressing arm 110 and a first distracting arm 180 which are connected with each other, the second distracting body 200 comprises a second pressing arm 210 and a second distracting arm 280 which are connected with each other, finger fasteners 111 are arranged at one end of the first pressing arm 110 far away from the first distracting arm 180 and one end of the second pressing arm 210 far away from the second distracting arm 280, the first pin 600 is arranged at the joint of the first pressing arm 110 and the first distracting arm 180, the second pressing arm 210 and the second distracting arm 280, so that the first pressing arm 110, the first distracting arm 180, the second pressing arm 210 and the second distracting arm 280 can rotate around the first pin 600, for transmitting torque.

A first spreading mouth 140 is arranged at one end of the first spreading arm 180 away from the first pressing arm 110, a second spreading mouth 240 is arranged at one end of the second spreading arm 280 away from the second pressing arm 210, an auxiliary mouth block 330 is connected to the outer end of the first spreading mouth 140 or the second spreading mouth 240, and the third spreading body 300 can be slidably mounted on the auxiliary mouth block 330 along the extending direction thereof, in this embodiment, the auxiliary mouth block 330 forms an included angle of 150 ° with the first spreading mouth 140 or the second spreading mouth 240, so that the third spreading body 300 can conveniently extend into the skin of the back wall of the shallow portion, in this embodiment, a channel for the third spreading body 300 to shuttle is arranged in the middle of the auxiliary mouth block 330, so that the third spreading body 300 can slide outwards or inwards in the channel, so that the third spreading body 300 has flexibility when spreading the back wall flap, the first spreading mouth 140 is provided with a first claw 141 arranged vertically, and the second spreading mouth 240 is provided with a second claw 241 arranged vertically, when the first incision is opened by the opener, the first claw head 141 clamps the skin tissue on one side of the first incision, and the second claw head 241 clamps the skin tissue on the other side of the first incision, so that the first opening mouth 140 and the second opening mouth 240 cannot slide relative to the first incision, the stability during opening is improved, and the surgical field is fixed.

A hook head 310 is disposed at one end of the third spreading body 300, the second locking mechanism 500 is disposed between the third spreading body 300 and the sub-mouth block 330, the second locking mechanism 500 is used for locking the relative position between the third spreading body 300 and the sub-mouth block 330, the first locking mechanism 400 is disposed between the first pressing arm 110 and the second pressing arm 210, the first locking mechanism 400 is used for locking the relative angle between the first pressing arm 110 and the second pressing arm 210, the first locking mechanism 400 comprises an arc-shaped saw tooth 112 and a first lock catch, the arc-shaped saw tooth 112 is connected to the first pressing arm 110, the center of the arc-shaped saw tooth 112 is concentric with the axis of the first pin 600, the first lock catch is fixedly connected to the second pressing arm 210, the first lock catch is connected with the arc-shaped saw tooth 112 through a tooth catch, in this embodiment, the second pressing arm 210 is provided with a passage for the arc-shaped saw tooth 112 to shuttle, arc sawtooth 112 is installed in the inboard of first pressure arm 110, first lock catch is installed in the passageway top of second pressure arm 210, in use, compression spring makes screens head and arc sawtooth 112 throw off, at this moment, first pressure arm 110 can inwards draw close or outwards open with second pressure arm 210, prop open the mouth and strut first incision back when opening, kick-back the spring, elasticity makes screens head conflict arc sawtooth 112, make arc sawtooth 112 press the relative position of arm with the second fixed, make and strut the ware and stably strut first incision, continuously provide the art field for the art person, be favorable to going on of operation.

The second locking mechanism 500 comprises a second lock catch arranged on the secondary nozzle block 330 and a fixed rack 340 arranged on the third spreading body 300, the fixed rack 340 extends along the third spreading body 300, the second lock catch is connected with the fixed rack 340 through a tooth catch, the second lock catch comprises a clip body, a fixing shaft 530 and an elastic member 540, the clip body comprises a clip tooth part 510 and a clip pressing part 520 which are connected with each other at an included angle, the clip body is rotatably arranged on the secondary nozzle block 330 through the fixing shaft 530, the fixing shaft 530 is arranged at the joint of the clip tooth part 510 and the clip pressing part 520, the elastic member 540 is arranged between the clip pressing part 520 and the side wall of the secondary nozzle block 330, the elastic member 540 pushes the clip body to rotate around the axis of the fixing shaft 530, so that the clip tooth part 510 is clamped with the fixed rack 340, teeth on the fixed rack 340 are in an oblique tooth structure, in this embodiment, the elastic member 540 is a spring piece, the fixed rack 340 is a right triangle, in other embodiments, a spring piece or other parts with elastic function can be used, the fixed rack 340 can also be made into other wave patterns, the bevel edge of the fixed rack 340 faces the opening mouth side, so that the third opening body 300 can be pulled and slid outwards, but cannot be slid back due to the fixation of the clip tooth portion 510, the soft tissue of the skin flap on the back wall of the shallow part can be pulled stably in the operation, the operation field can be further enlarged, and the operation field can be fixed.

And the clamp tooth part 510 is provided with a locking abutting block 550 abutted against the auxiliary nozzle block 330, and the clamp tooth part 510 is abutted against the auxiliary nozzle block 330 through the locking abutting block 550 to realize locking and positioning.

In other embodiments, the locking mechanism may adopt other locking methods, so that the expansion angle between the first pressing arm 110 and the second pressing arm 210 can be fixed at different positions.

When the surgical instrument is used, a finger is inserted into the finger buckle 111 to operate, so that the expansion angle between the first pressing arm 110 and the second pressing arm 210 is controlled, force is transmitted to the first spreading arm 180 and the second spreading arm 280 through the first pin shaft 600, the first spreading arm 180 and the second spreading arm 280 are kept open, a first incision of a surgical part is spread, a surgical field is exposed, meanwhile, the arc-shaped saw teeth 112 move along with the first pressing arm 110 to shuttle in a channel arranged on the second pressing arm 210, a first lock catch used for fixing the arc-shaped saw teeth 112 is arranged at the upper end of the channel, after the expansion angle between the first spreading arm 180 and the second spreading arm 280 is determined, the first lock catch is connected with the tooth buckle of the arc-shaped saw teeth 112, the expansion angle can be fixed, the stability is improved, the surgical field is fixed, at this time, the elastic piece 540 is compressed, so that the clips 510 and the tooth part 520 are separated from the third spreading body 300, specifically, the method comprises the following steps: checkpost tooth portion 510 and checkpost splenium 520 are rotatory around fixed axle 530 for checkpost tooth portion 510 is thrown off with fixed rack 340, finger tractive third distraction body 300, make gib head 310 hook clip the soft tissue of back wall petal, make the second incision art wild expose, simultaneously, kick-back elastic component 540, make checkpost tooth portion 510 rotatory around fixed axle 530 with fixed rack 340, make checkpost tooth portion 510 and fixed rack 340 mesh, can fix the relative position of third distraction body 300 and vice mouth piece 330, make the art wild fixed, the medical personnel of being convenient for operate.

Further, a pull head 320 is arranged at one end of the third spreading body 300 far away from the hook head 310, and when the skin flap of the back wall of the shallow part is spread, the pull head 320 is beneficial to the third spreading body 300 to be pulled under stress, so that the operation is more convenient and faster, in the embodiment, the pull head 320 is hemispherical and has a diameter larger than that of the third spreading body 300.

Simultaneously, first arm 180 struts includes first arm strut 120, second arm strut 130, first arm strut 120 is articulated with second arm strut 130 through being second round pin axle 150 that extends about, second arm strut 280 includes third arm strut 220, fourth arm strut 230, third arm strut 220 is articulated with fourth arm strut 230 through being third round pin axle 250 that extends about. Therefore, the second brace 130 and the fourth brace 230 can swing vertically, and the first brace 120 and the third brace 220 can be pressed downwards, so that the operation is not affected by being tilted up too high.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.

Claims

1. The utility model provides a can tractive external auditory canal back wall skin flap's ware that struts, its characterized in that including the body of horizontal setting:

the body comprises a first spreading body (100), a second spreading body (200), a third spreading body (300), a first locking mechanism (400) and a second locking mechanism (500), wherein the first spreading body (100) is hinged with the second spreading body (200) through a first pin shaft (600) which is vertically arranged, the first spreading body (100) comprises a first pressing arm (110) and a first spreading arm (180) which are connected with each other, the second spreading body (200) comprises a second pressing arm (210) and a second spreading arm (280) which are connected with each other, the first pin shaft (600) is arranged at the joint of the first pressing arm (110) and the first spreading arm (180) and the joint of the second pressing arm (210) and the second spreading arm (280), a first spreading mouth (140) is arranged at one end of the first spreading arm (180) far away from the first pressing arm (110), and a second spreading mouth (240) is arranged at one end of the second spreading arm (280) far away from the second pressing arm (210), the outer end of the first spreading mouth (140) or the second spreading mouth (240) is connected with an auxiliary mouth block (330), the third spreading body (300) can be slidably mounted on the auxiliary mouth block (330) along the extending direction of the third spreading body, one end of the third spreading body (300) is provided with a hook head (310), the second locking mechanism (500) is arranged between the third spreading body (300) and the auxiliary mouth block (330), the second locking mechanism (500) is used for locking the relative position between the third spreading body (300) and the auxiliary mouth block (330), the first locking mechanism (400) is arranged between the first pressing arm (110) and the second pressing arm (210), and the first locking mechanism (400) is used for locking the relative angle between the first pressing arm (110) and the second pressing arm (210).

2. The distractor of claim 1, wherein the external ear canal posterior skin flap comprises:

finger buckles (111) are arranged at one end, far away from the first spreading arm (180), of the first pressure arm (110) and one end, far away from the second spreading arm (280), of the second pressure arm (210).

3. The distractor of claim 1, wherein the external ear canal posterior skin flap comprises:

the second locking mechanism (500) comprises a second lock catch arranged on the auxiliary nozzle block (330) and a fixed rack (340) arranged on the third spreading body (300), the fixed rack (340) extends along the third spreading body (300), and the second lock catch and the fixed rack (340) are connected through a tooth catch.

4. The distractor of claim 3, wherein the external ear canal posterior skin flap comprises:

the teeth on the fixed rack (340) are in a helical tooth structure.

5. The distractor of claim 3, wherein the external ear canal posterior skin flap comprises:

the second hasp includes the checkpost body, fixed axle (530), elastic component (540), the checkpost body is including being checkpost tooth portion (510) and checkpost splenium (520) that the contained angle is connected each other, the checkpost body passes through fixed axle (530) is rotationally installed on vice mouth piece (330), fixed axle (530) set up in the junction of checkpost tooth portion (510) and checkpost splenium (520), elastic component (540) set up between checkpost splenium (520) and vice mouth piece (330) lateral wall, elastic component (540) push the checkpost body and rotate around fixed axle (530) axis, make checkpost tooth portion (510) with fixed rack (340) block, checkpost tooth portion (510) are provided with the locking butt piece (550) with vice mouth piece (330) butt.

6. The distractor of claim 1, wherein the external ear canal posterior skin flap comprises:

first locking mechanical system (400) is including arc sawtooth (112), first hasp, arc sawtooth (112) are connected in first pressure arm (110), the centre of a circle of arc sawtooth (112) is concentric with the axis of first round pin axle (600), and first hasp is fixed on second pressure arm (210), be connected through the tooth buckle between first hasp and arc sawtooth (112).

7. The distractor of claim 1, wherein the external ear canal posterior skin flap comprises:

a pull head (320) is arranged at one end of the third spreading body (300) far away from the hook head (310).

8. The distractor of claim 1, wherein the external ear canal posterior skin flap comprises:

first arm (180) of strutting includes first arm (120), second arm (130) of strutting, second round pin axle (150) that first arm (120) extended about through being is articulated with second arm (130), second arm (280) of strutting includes third arm (220), fourth arm (230) of strutting, third arm (220) are articulated with fourth arm (230) through being third round pin axle (250) of extending about through being.

9. The distractor of claim 1, wherein the external ear canal posterior skin flap comprises:

the first spreading mouth (140) is provided with a vertically arranged first claw head (141), and the second spreading mouth (240) is provided with a vertically arranged second claw head (241).